HomeMy WebLinkAboutSWP272012(1) (2) CITY OF RENTON
4, Planning/Building/Public Works Department
Earl Clymer,Mayor Gregg Zimmerman P.E.,Administrator
March 30, 1995
Roy Kuroiwa
Hart Crowser, Inc.
1910 Fairview Avenue East
Seattle, WA 98102-3699
SUBJECT: MODIFICATION TO SURFACE WATER MONITORING PLAN
PACCAR RENTON SITE
Dear Mr. Kuroiwa:
We have reviewed your request to establish a new surface water monitoring location
(SW-6) north of Building 17. An existing stormwater line collects stormwater from the
building roof and conveys it to the City stormwater system in Garden Avenue North.
After the building is removed and the area is graded, stormwater will flow across the
building site and will be discharged into the same stormwater system. The new
monitoring location is approved subject to the following conditions:
1. The new sampling location (SW-6) will be subject to the same sampling
schedule and testing parameters as the existing surface water sampling
locations.
2. Sampling will continue for the same period as the existing surface water
sampling locations, until approved otherwise.
If you have any questions regarding this letter, please call Daniel Carey at (206)
277-6193.
Sincerely,
Ronald J. St ka, P.E., ngineering Supervisor
Surface Water Utility
H:DOCS:95-280:DWC:ps fX-,
CC: David South-Ecology
P
200 Mill Avenue South - Renton,Washington 98055
�r
CROW 1910 FairHartCrowser,Inc.
viewAvenue East
Seattle,Washington 98102-3699
Fax 206.328.5581
Earth and Environmental Technologies Tel
J-1639-27
March 8, 1995
a
d
Mr. Ron StrakaA'-Aj
Engineering Supervisor ' ,
Surface Water Utility MAR
City of Renton ENT00
200 Mill Avenue South, 4th Floor Engineering eering Dept,
F F'
Renton, Washington 98055
e
Re: Modification to Surface Water Monitoring Plan
Addition of One Sampling Location
PACCAR Renton Site
Dear Mr. Straka:
The purpose of this letter is to request approval for modifications to the existing Surface
Water Monitoring Plan for the PACCAR Renton site approved and revised by the City of
Renton Storm and Waste Water Division on September 19, 1991, modified on February
24, 1994.
We request to modify the existing four sampling locations to include a fifth location
(SW-6) at the north end of Building 17. Currently, this storm line intercepts only storm
water captured from the roof of the building and eventually conveys it off site to the
Cedar River. This request for modification is triggered by demolition and remediation
activities in and around Building 17. These activities will eventually effect the current
storm water drainage paths, resulting in the complete demolition of Building 17 and
drainage of surface water across graded and filled soils. Refer to PACCAR Phase V,
Grade and Fill Plans and Specifications recently submitted to and approved by the City of
Renton. Figure 1 presents the current sampling locations and the proposed additional
sampling location.
Seattle Tacoma•Richland•Anchorage•Portland•Denver•Honolulu•San Francisco•Long Beach•San Diego•Mexico City
t'
City of Renton J-1639-27
March 8, 1995 Page 2
We will sample this new location during the next scheduled surface water sampling event
(March 1995) to establish baseline conditions. Continued monitoring will assist us in
assessing and identifying potential surface water quality impacts made by site changes.
If you have any questions concerning the proposed modifications, please feel free to
contact us at any time. We look forward to your timely response.
Sincerely,
HART CROWSER, INC.
4RY K. KUROIWA J ES H. KLE PE, P.E.
Project Engineer ncipal
Attachment:
Figure 1 - Surface Water Sampling Location Plan
RM«n
swmods.Ur
cc: (w/Attachment)
Robert K. Butler, James C. Leonard, PACCAR
David South, Washington State Dept of Ecology (3)
Surface Sampling Location Plan
U
Houser Wa North
13 — UU u
1 2 — / 36" Diameter RCP Storm Sewer Line
r�
10 —
a Detention SW-3® Surface Water Sampling
Pond i Location and Number
v Manhole and Cleanout
8 c Inlet 1991 Storm Sewer Addition
o Channel ' - ?' Flow and Direction
_ Z Kenworth Truck V'
7 Plant Facility I r _ —� _
Off-Site Storm Sewer
— a Flow and Direction 6
L
Perimeter Drainage
S',iV-.:)P o,❑
�Z
5 \ --�-- Predemolition Storm Drain
SW-3 Flow and Direction
` -- � �-a ��- SW-5 Building 17
Garden Avenue North
------7j -- -- — P n 0 250 500
C/) r--,
1 r Scale in Feet
Ln
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B C D E E 0 H I J K L M N 0 P Q R S T U `J W d o
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Figure 1
CITY OF RENTON
MEMORANDUM
DATE: February 23, 1994
TO: Ron Straka
FROM: Daniel Carey DC/
SUBJECT: PACCAR SITE -
Request to Reduce Surface Water Monitoring Frequency
BACKGROUND
The PACCAR Site is a Super Fund site being cleaned up under a consent decree issued
by the State and overseen by the Department of Ecology (the lead agency). Long-term
groundwater and surface water monitoring is required for 30 years. Surface water
monitoring is required semi-annually (spring and fall) at SW-3 and SW-4 by Ecology (in
addition to groundwater monitoring). Adjustments to the monitoring program may be
made based on the data collected. A major project review is supposed to be
conducted every 5 years.
PACCAR was required to obtain a Grade and Fill permit from the City. The permit was
reviewed by Randall Parsons and monthly sampling was required per the Stormwater
Quality Monitoring Plan developed by Hart Crowser, Inc. Sampling was not required
during the summer months unless there was a discharge from the erosion control
ponds. The City's monitoring program was required until the disturbed ground surfaces
are covered with either permanent structures, pavement, or establishment of
landscaping and vegetative coverage.
The Grade and Fill permit, conditions and Hearing Examiner's report can be found in the
building file B-171 17. The mylar plans for the site and drainage are in plan file SWP-
201 1 and 2012.
Randall used threshold levels in the Grade and Fill Permit approval that were apparently
equal to the final cleanup levels in the Cleanup Action Plan. The cleanup levels are
based on Section 304 of the Clean Water Act, and WAC 173-340-720. In a memo to
Gregg Zimmerman (10/22/91), Randall stated that the threshold levels would remain as
originally specified. If off-site runoff entering the PACCAR site had monitoring values
that exceeded the threshold values, the City would consider using higher threshold
levels.
PACCAR SITE -
Request to Reduce Surface Water Monitoring Frequency
Page 2
MONITORING RESULTS
The monitoring results are summarized in the attached spread sheet and graphs.
Almost all of the sampling results exceed the threshold levels in the Grade and Fill
permit approval, including the results from SW-MH.
SW-MH represents offsite runoff coming from sources outside the plant site, including
City streets. In many cases the sampling results for SW-MH are higher than the onsite
results. Although the sampling results are higher than the threshold levels, they do not
seem extremely high when compared to the surface water criteria.
MONITORING REDUCTION REQUEST
In its' January 31, 1994 letter Hart Crowser requested the following changes to the
surface water monitoring program:
1 . Add a fourth sampling location that will monitor surface water generated solely
from the south side of the site, where the remaining cleanup activities will be
occurring..
2. Reduce the sampling frequency from monthly to two times per year. This will
match the existing Ecology sampling requirement.
3. Eliminate the sampling analysis for TPH, PCB's, benzene, and vinyl chloride.
RECOMMENDATION
1 . Add the fourth sampling location as requested. Change the proposed name to
SW-5 since a previous location was named SW-4. This may help prevent
confusion in the future.
2. Reduce the monitoring frequency to two times per year as requested. The
monitoring results to-date have not shown any high levels of contaminants
coming from the site. With the majority of cleanup work completed at the site,
monthly monitoring does not seem necessary.
3. Changing the constituents analyzed would probably require approval from
Ecology since those constituents were required as part of their sampling plan.
The plan states that sampling could be reduced in the first five years for
constituents that were not detected for three consecutive sampling periods.
I recommend that the original parameters continue to be analyzed for the first
five year period, unless Ecology will approve discontinuing the analysis. TPH,
PCBs, benzene, and vinyl chloride are parameters of concern that we would
want to be able to detect if they are present. The results will help form the
baseline information for both on-site and off-site levels. The sampling could be
proposed for elimination as part of the first five year review.
4. We should continue to review the monitoring results and keep in contact with
Ecology for their reviews and the five year major project review. We should
check with the Water Utility to ensure that they are aware of the groundwater
monitoring being done at the site. The site is partially in APA Zone 2.
PACCAR SITE -
Request to Reduce Surface Water Monitoring Frequency
Page 3
1 have contacted David South, the Ecology project manager, to discuss the
request. He will get a copy of the letter from Hart Crowser and will let me
know his opinion. His initial impression was that the request may only concern
the conditions of the Grade and Fill permit. As such it would not require his
review and approval.
H:DOCS:94-174:DWC:ps
CC: Ron Olsen
Lys Hornsby
PROJECT: PACCAR North Site Grading and Filling D. Carey
Stormwater Quality Monitoring Results Date: 2/4/94
Sampling Location: SW-MH Stormwater collected from manhole - runoff from offsite sources
Date As Cr Cu Pb Ni Zn PCB TPH Benzene Vinyl
(All concentrations in mg/I ) Chloride
Renton Levels 0.005 0.005 0.007 0.001 0.080 0.059 1 100 0.005 0.004
Surface Water Criteria 0.050 0.050 1.000 0.050 5.000
10/24/91 ND 0.021 0.038 ND ND 0.150 ND 2 ND ND*1
10/24/91 Dupl. ND 0.027 0.033 0.042 0.014 0.250 ND 2 ND ND*1
11/11/91 ND 0.040 0.023 ND ND 0.160 ND ND ND ND*1
11/11/91 Dupl. 0.062 0.046 0.073 0.078 0.035 0.200 ND ND ND ND*1
12/18/91 0.011 0.018 0.019 ND ND 0.140 ND ND ND ND
1/27/92 0.012 0.028 0.035 0.051 ND 0.150 ND 1 ND ND
3/4/92 0.023 0.029 0.042 0.043 0.016 0.320 ND 4 ND ND
4/17/92 ND 0.011 0.015 ND ND 0.094 ND ND ND ND
6/12/92 0.025 0.027 0.090 0.043 0.021 0.610 ND 0.90 ND ND
9/24/92 0.013 0.020 0.030 0.080 0.010 0.330 ND ND ND ND
10/19/92 ND ND ND 0.004 ND 0.550 ND ND ND ND
Lab Detect Limits 0.005 0.010 0.0100 0.003 0.01 0.01 0.001 0.40 0.001 0.0002
Renton Values = City of Renton Threshold Levels
Surface Water Criteria - from Raw Water Quality Criteria for Public Supplies, Permissive criteria, 1968
ND = Not Detected at detection limit
NA = Not Analyzed
ND 1 = Not Detected (qualitative assessment)
Sampling Location: SW-3 Open drainage ditch/manhole- onsite runoff
Date As Cr Cu Pb Ni Zn PCB TPH Benzene Vinyl
(All concentrations in mg/I ) Chloride
Renton Levels 0.005 0.005 0.007 0.001 0.080 0.059 1 100 0.005 0.004
10/24/91 ND 0.010 0.024 0.035 ND 0.089 ND ND ND NF
11/11/91 ND 0.024 0.045 0.047 0.023 0.130 ND ND ND ND*1
12/18/91 0.017 0.058 0.093 0.120 0.052 0.230 ND ND ND 0.0084
1/27/92 0.0084 0.031 0.049 0.067 0.017 0.150 ND 0.30 ND 0.0016
3/4/92 0.0063 0.012 0.016 ND ND 0.170 ND 2 ND 0.0019
4/17/92 ND 0.011 0.015 ND ND 0.094 ND ND ND ND
6/12/92 0.0059 ND 0.026 0.005 ND 0.200 ND ND ND ND
9/24/92 0.0060 0.010 0.020 0.060 0.010 0.190 ND ND ND ND
10/19/92 0.0110 0.020 0.040 0.050 0.020 0.290 ND ND ND ND
Lab Detect Limits 0.005 0.010 0.0100 0.003 0.01 0.01 0.001 0.40 0.001 0.0002
MONITOR.XLS Page 1
Sampling Location: SW-4 Stormwater Basin - onsite runoff
Date As Cr Cu Pb Ni Zn PCB TPH Benzene Vinyl
(All concentrations in mg / I ) Chloride
Renton Levels 0.005 0.005 0.007 0.001 0.080 0.059 1 100 0.005 0.004
10/24/91 ND 0.025 0.026 0.030 ND 0.120 ND 2 ND ND*1
11/11/91 0.062 0.046 0.073 0.078 0.035 0.200 ND ND ND ND*1
11/11/91 Dupl. 0.056 0.056 0.079 0.083 0.037 0.230 ND ND ND ND*1
Not sampled after above date
Lab Detect Limits 0.005 0.010 0.0100 0.003 0.01 0.01 0.001 0.40 0.001 0.0002
Sampling Location: SW-EC2 Erosion Control Pond 2 - onsite runoff, sampled from spillway
Date As Cr Cu Pb Ni Zn PCB TPH Benzene Vinyl
(All concentrations in mg/ I ) Chloride
Renton Levels 0.005 0.005 0.007 0.001 0.080 0.059 1 100 0.005 0.004
12/18/91 ND 0.014 0.0074 ND ND ND ND ND ND ND
12/18/1991 Dupl. ND 0.015 0.0069 ND ND ND ND ND ND ND
1/27/92 ND 0.012 0.025 0.009 ND 0.041 ND ND ND ND
3/4/92 0.006 0.012 0.020 ND ND 0.049 ND ND ND ND
4/17/92 0.031 0.034 0.058 0.033 0.031 0.090 ND ND ND ND
6/12/92 0.010 ND 0.012 0.006 ND 0.110 ND ND 0.0006 ND
Discontinued after above date
Lab Detect Limits 0.005 0.010 0.0100 0.003 0.01 0.01 0.001 0.40 0.001 0.0002
Sampling Location: SW- DP DP = Detention Pond - North end of site, onsite drainage
Date As Cr Cu Pb Ni Zn PCB TPH Benzene Vinyl
(All concentrations in mg / I) Chloride
Renton Levels 0.005 0.005 0.007 0.001 0.080 0.059 1 100 0.005 0.004
Constructed and first sampled as below
9/24/92 0.002 ND ND ND ND 0.340 ND ND ND ND
10/19/92 0.018 0.040 0.030 0.034 0.020 0.180 ND ND ND ND
Lab Detect Limits 0.005 0.010 0.0100 0.003 0.01 0.01 0.001 0.40 0.001 0.0002
MONITOR.XLS Page 2
ARSEN-1.XLC
Paccar Site - Surface Water Monitoring Results - Arsenic
0.05 44
Surface Water
0.045 Criteria
0.04
0.035
0.03
SW- MH
0.025 ❑ SW- 3
mg SW- DP
0.02
0.015
0.01
0.005 —
Renton Level
0
10/91 11/91 12/91 1/92 3/92 4/92 6/92 9/92 10/92
LEAD-1.XLC
Paccar Site - Surface Water Monitoring - Lead
0.15
SW- MH
❑ SW- 3
SW- DP
0.1
mg
0.05 —
Surface Water
Criteria (.050)
p — Renton Level
(.050)
10/91 11/91 12/91 1/92 3/92 4/92 6/92 9/92 10/92
ZINC-1.XLC
Paccar Site - Surface Water Monitoring - Zinc
1 Surface Water
Criteria (5.0)
0.9
0.8
0.7
0.6 — Renton Level
0.5 (.059)
m
0.4
0.3
SW- MH
❑ SW- 3
0.2
SW- DP
0.1
0
10/91 11/91 12/91 1/92 3/92 4/92 6/92 9/92 10/92
Surface Water Sampling Location Plan
cJ
Houser 'Ycy North
2 / 36" Diameter RCP Storm Sewer Line l
- - - - - - - - - - - - - - -
SW-MH
10 -
j f
Detection
g — �:II Pond i
i
L
Inlet
Catch
z I Channel Kenworth Truck
7 ' Plant Facility I
v I4tSW�-DP
5 - ,AD-3
i
I SW-3® SurfaceWater Sampling
7 ` - — — — — — — — — — — — — — I i Location and Number
SW-4 El • Manhole and Cleonout
(Proposed) Foundry Building
a � 1991 Storm Sewer Addition
-� Flow and Direction
13
Il"- Off-Site Storm Sewer
0
Garden Avenue North Flow and Direction
W
F v - Perimeter Drainage
' N Cn f
L
II �
A C D E F G H I J K L M N 0 P Q R S T U V
o
0 250 500
J-1639-27 1194
Ci
Scale in Feet Figure 1
Surface Water Sampling Location Plan
PACCAR Renton Sewer System
Existing
Storm Sewer Line
LI U
t � �
NOW
\7
RCP Storm Sewer Line - / O G
®SW-3 Storm Water Sampling
' SW Location and Number
_ 0Manhole and Cleanout
1991 Storm Sewer Addition
Existing Storm Sewer System
I
- -- -- Abandoned Storm Sewer
RCP Storm
Sewer Line I
SW-4 —� I
i I
SW-3 I ❑ Li
Drainage-pitchI
` Erosion Control Pond 92%
with Spillway
SW—EC2* ----------
a
-----------
---- ------
RCP Storm Sewer Line I ( �— 0' I I � 250 500
� I I
Scale in Feet
* Notes: 1. Erosion control pond *2 is aboveground. Ar/
2. Sample will be from pond spillway. t>
3. Pond does not connect to manhole. HA. RTCWWSME
J-1639-23 12191
Fiaure 1
K�
IF REVISIONS , ROUTED WITH
PREVIOUS PLANS AND COMMENTS . GREEN NO.
1
CITY OF RENTON BUILDING DIVISION
PLAN REVIEW ROUTING SLIP
DATE
� APPLICANT: ;�AG�i�4�
JOB ADDRESS : IV-
NATURE OF WORK: �� ,�` �j�,Q D� �� c-�
i
TO: Comments Due Comments Due
I FIRE PREVENTION BUREAU BUILDING CODE REVIEW
WATER SYSTEMS ENERGY CODE
i -
i�c SEWER SYSTEMS STORM DRAIN SYSTEMS .
TRANSPORTATION DIVISION PLANNING DIVISION
OTHERS MECHANICAL
Comments/suggestions should be provided in writing . Please provide
comments to the Building Division by 5 : 00 p.m. on above date.
REVIEWING DEPARTMENT/DIVISION
APPROVED � �—� APPROVED WITH CONDITIONS NOT APPROVED
�Oi"'P�77 Oil S
A surface water quality monitoring program (attached) shall be conducted to collect data for
analysis by the applicants water quality monitoring consultant, and submittal for review by the City
of Renton's Stormwater Utility. The program will commence upon issuance of the grading license
and will extend until the disturbed ground surfaces are covered with either permanent structures,
pavements or establishment of landscaping or vegetative coverage.
The sampling of the described parameters (excerpted from the Cleanup Action Plan) will be
performed on the frequency indicated using the methodologies described in the site's Quality
Assurance Plan (attached, Appendix A of the Work Plan for the site prepared by Hart Crowser in
1988). A copy of the sampling analysis will be submitted to the City of Renton's Stormwater Utility
Supervisor within 2 working days follow4 ollection . Should any of the parameters
exceed the threshold concentrations, the applicants water quality monitoring consultant shall
commence a review of site activities to identify the likely source of the contaminants and propose
immediate mitigative actions to reduce the level of the contaminants in the surface water to below
the parameter threshold concentrations.
..
ArN
HA. CROWSER
Earth and Environmental 7echnolog/ez
r�ater Quality Monitoring Program
North Site Grading and Filling Work
PACCAR Renton Site
Renton, Washington
Prepared for City of Renton
by Hart Crowser, Inc.
J-1639-23
CAntamf,�r � 'f9�
Arr ,-e- �e, r�v3
9 9/
7-7
Seaiile. Tacoma,Rnhland,4nchorage,Pori/inu,San Fr.in Long l3e.icn
Hart Crowser
J-1639-23
STORMWATER QUALITY MONITORING PROGRAM
NORTH SITE GRADING AND FILLING WORK
PACCAR RENTON SITE
RENTON, WASHINGTON
Introduction
Stormwater sampling at the PACCAR Renton site will be conducted as
part of surface water quality monitoring during the North Site grading
and filling activities. Sampling will be conducted in two locations: at
the point where storm sewers enter the site and at the location(s)
N��e� "�� where site enerated stormwater exits the site. A com arison of the
G 7 two samples will reveal any effects which current site work activities
may have on surface water qua]tv.
Stormwater Collection and Drainage System during Grade and Fill Activities
The PACCAR site is located in the North Renton Storm Drainage
Basin, Valley region. The area included in the Valley region is
primarily industrial. Water collected in the Valley storm sewers is
discharged to Lake Washington.
Storm water enters the PACCAR site at the southeastern corner of the
site and carries water which has been collected on approximately 50
acres southeast of the property. This line runs across the property and
discharges on the northern boundary of the site.
Flow on the site occurs in ditches and storm sewers--most of the site is
drained by underground storm sewers. Stormwater falling on North Site
grading and filling activities will be diverted and collected in erosion
control ponds located on the northwest corner of the site. Flow leaves
the ponds from two overflow spillways connected to the public
stormwater system. The erosion control plan, including control ponds
and overflow spillways, are detailed and located on SSOE Grade and
Fill Plans, 9 August, 1991.
Page 1
/f dt IL- V4G e-Xi S 7-/c
d/� ✓I O r NHS ! Go r� cl`c Si � 1�r'e�7'- fo v,//
o Hart Crowser
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ampling Plan
Background or baseline sampling will be conducted at the southeast
manhole location where off-site collected storm water enters the site.
The point of sampling for discharge waters will be at two locations
where surface waters collected from the North Site grade and fill /'
activities are discharged Ip thu lic s stem. - -
locationf�e-located t e o e�rflow sp llwayg of the erosion control
ponds number-}=-awl 2, as detailed in SSOE Plan Sheet 1 of 15 ntrol
August 1991. Bow lam .,.c
Stormwater samples will be analyzed for the following parameters
methods �a.., o (test
TPH (EPA Method 8015 Modified);
PCBs (Modified Method 608);
Arsenic (EPA Method 206.2);
Chromium (EPA Method 239.1); and
Lead (EPA Method 239.1).
Stormwater sampling will be conducted monthly from October 1991
until all erosion control measures are removed related to the North Site
grading and filling activities. During the summer months, sampling will
not occur unless there is discharge from the erosion control ponds due
to storm events. The stormwater samples will be collected, when
Possible, from a storm event that produces more than 0.1 inches of
rainfall and occurs at least 72 hours after the last 0.1 inches rainfall
event.
SURFACE WATER QUALITY MONITORING PARAMETERS
AND THRESHOLD CONCENTRATION/LEVELS L
les'r".'.��/ e-r�..�/ dA r-/y f!7 �/-- iji0-jC,,/��d./+'�'p�I�►-5 /� �H�y �✓
ParameterY �� G'r`'I a� Threshold Concentration Level
TPH 100 mg/L
PCBs 1 mg/L
Arsenic * 0.005 mg/L
Chromium VI * 0.011 mg/L
Lead * 0.001 mg/L
Zinc * 0.059 mg/L
Copper * 0.007 m /L
Nickel * 0.080 mg/L
Benzene 0.005 mg/L
Vinyl Chloride 0.0004 mg/L
* Note, metal shall be analyzed and reported for both 'Total"and " Dissolved".
CITY OF RENTON
MEMORANDUM
DATE: October 22, 1991
TO: Gregg Zimmerman
FROM: Randall Parso
SUBJECT: PACCAR SURFAC WATER QUALITY MONITORING PROGRAM
In response to Mr. Butler's letter to you of September 27, 1991 (enclosed for reference). I have discussed the
surface water quality monitoring program with Cathy Kiley, Environmental Chemist with Hart/Crowser and
Associates, and the water quality analysis methods with Emily Carfioli, Chemist with Analytical Technology.
Based on these conversations I have agreed to make the following modifications to the currently adopted
p rog ram.
(1) The samples will only have to be analyzed for'Total" metals unless the specified threshold is exceeded,
in which case samples will then be analyzed for"Dissolved" metals as well until either the problem area
is controlled and the levels of concern drop back below the threshold.
(2) The thresholds of concern will remain as originally specified unless PACCAR submits technical
justification prepared by their consultants that substantiate using higher threshold values. In addition, if
off-site runoff entering the PACCAR site at the southeast corner has constituent parameter values
chronically in excess of the specified thresholds (and the levels are not approaching toxic levels for
aquatic organisms)then we will consider allowing higher threshold levels.
Let me know if you or they have any questions regarding these modifications.
PACWOMOD.DOC:RP:rp:
enclosure
4
M1
HA. CR0 WSER
Earth and Environmental Technologies
Stormwater Quality Monitoring Program
North Site Grading and Filling Work
PACCAR Renton Site
Renton, Washington
Prepared for City of Renton
by Hart Crowser, Inc.
J-1639-23
September 5, 1991
R'4hia'4! Anchoixje,POrt!and,San Franoi:o.LC"Cy 3e•xh
Hart Crowser
J-1639-23
STORMWATER QUALITY MONITORING PROGRAM
NORTH SITE GRADING AND FILLING WORK
PACCAR RENTON SITE
RENTON, WASHINGTON
Introduction
Stormwater sampling at the PACCAR Renton site will be conducted as
part of surface water quality monitoring during the North Site grading
and filling activities. Sampling will be conducted in two locations: at
the point where storm sewers enter the site, and at the location(s)
where site-generated stormwater exits the site. A comparison of the
two samples will reveal any effects which current site work activities
may have on surface water quality.
Stormwater Collection and Drainage System during Grade and Fill Activities
The PACCAR site is located in the North Renton Storm Drainage
Basin, Valley region. The area included in the Valley region is
primarily industrial. Water collected in the Valley storm sewers is
discharged to Lake Washington.
Storm water enters the PACCAR site at the southeastern corner of the
site and carries water which has been collected on approximately 50
acres southeast of the property. This line runs across the property and
discharges on the northern boundary of the site.
Flow on the site occurs in ditches and storm sewers--most of the site is
drained by underground storm sewers. Stormwater falling on North Site
grading and filling activities will be diverted and collected in erosion
control ponds located on the northwest corner of the site. Flow leaves
the ponds from two overflow spillways connected to the public
stormwater system. The erosion control plan, including control ponds
and overflow spillways, are detailed and located on SSOE Grade and
Fill Plans, 9 August, 1991.
Page 1
AL
Hart Crowser
J-1639-23
Sampling Plan
Background or baseline sampling will be conducted at the southeast
manhole location where off-site collected storm water enters the site.
The point of sampling for discharge waters will be at two locations
where surface waters collected from the North Site grade and fill
activities are discharged to the public system. These two sampling
locations are located at the overflow spillways of the erosion control
ponds number 1 and 2 as detailed in SSOE Plan Sheet 1 of 15,
August 1991.
Stormwater samples will be analyzed for the following parameters (test
methods):
► TPH (EPA Method 8015 Modified);
► PCBs (Modified Method 608);
► Arsenic (EPA Method 206.2);
► Chromium (EPA Method 239.1); and
► Lead (EPA Method 239.1).
Stormwater sampling will be conducted monthly from October 1991
until all erosion control measures are removed related to the North Site
grading and filling activities. During the summer months, sampling will
not occur unless there is discharge from the erosion control ponds due
to storm events. The stormwater samples will be collected, when
possible,from a storm event that. produces more than 0.1 inches of
rainfall and occurs at least 72 hours after the last 0.1 inches rainfall
event.
RKKfjjr
StormAr
Page 2
LONG TERM WATER QUALITY MONITORING PROGRAM
PACCAR SITE
RENTON, WASHIN'GTON
September 19, 1990
PURPOSE
The purpose of the long term water quality monitoring program for the PACCAR site is to:
o Detect whether contaminants are migrating off-site,
including towards the Renton well field.
o Detect whether contaminants are migrating into groundwater
from localized areas on the site, and
o Collect data to evaluate water quality trends and the need
for additional remedial action.
BACKGROUND
An extensive water quality data base for the PACCAR site has been developed during the completion
of several projects including a final draft Remedial Investigation(RI)report(Hart Crowser, 1989) and
sampling conducted as part of an Ecology approved Interim Water Quality Monitoring Program
(Dalton, Olmsted & Fuglevand Inc. 1990). Groundwater samples have been obtained from on-site
and off-site wells since June of 1984. Through March- 1990, over 75 wells have been sampled and
over 125 samples have been analyzed for a variety of constituents including priority pollutants:
o Volatile and Semivolatile (Extractable) Chemicals;
o Pesticides and PCBs; and
o Total and Dissolved Metals.
A sampling round was completed in March 1990 as part of the interim program. An additional
sampling round will be completed during the period September to October 1990. It is anticipated that
the Long Term Monitoring Program, as outlined below, will be incorporated into the Cleanup Action
Plan (CAP) for the site and will begin in March 1991.
Volatile, semivolatile and several metals have been detected in groundwater samples. Benzene, vinyl
chloride, 1,2 dichloroethane, and arsenic were detected in one or more wells at concentrations above
existing drinking water standards. Only vinyl chloride exceeded existing drinldng water standards
in off-site wells (only within the Cedar River catchment area). Arsenic and lead may exceed
proposed primary standards in a limited number of on-site and off-site wells while concentrations of
ethylbenzene, toluene, xylene and 1,2-dichlorobenzene exceeded proposed secondary standards in on-
site wells.
Dalton, Olmsted & Fuglevand, Inc.
Interim Water Quality Monitoring Program
PACCAR Renton, Site
September 19, 1990 Page 2
The available data indicates that concentrations of several chemicals in groundwater are declining with
time. For example, in well LW-12S total volatile chemical concentrations have declined from 40 ug/1
detected in July 1986 to non-detectable concentrations in March 1990. Similar downward trends are
also indicated for several other wells including vinyl chloride and benzene. Vinyl chloride
concentrations have declined 50% to 75% in wells LW-6D and LW-91) (Figure 1) while benzene was
not detected in any of the wells sampled in March 1990.
The quality of surface water migrating off the site via drainage ditches has also been evaluated. The
results of the analyses indicate that the quality of runoff from the PACCAR site is similar to or of
better quality than that of runoff in urban residential neighborhoods. Low concentrations of several
metals have been detected in the runoff. The sampling results from March 1990 indicate that surface
water quality meets ARARs.
The number and types of chemical analyses completed and the results of the analyses are summarized
in Section 6 of the final draft RI report (Hart Crowser 1989). The March 1990 sampling results were
submitted to Ecology in May 1990.
DURATION OF MONITORING PROGRAM
Water quality monitoring will be conducted for a 30 year period- Monitoring of both groundwater
and surface water quality will be completed. Adjustments to the monitoring program will be made
during the life of the program based on collected data. The procedure for making adjustments is
outlined in a following section.
LOCATIONS TO BE MONITORED
Groundwater Sampling Locations - Table 1 lists the wells to be sampled. Figures 2 and 3 show
the locations. The wells were selected to provide water quality data within shallow and deep zones
on and downgradient of the site perimeter and within three localized portions of the site.
Groundwater samples from 14 shallow and 13 deep wells will be obtained.
The three "local area" wells are:
o LW-3 - downgradient of the former locations of thinner USTs.
o LW-1 - downgradient of the Kenworth R&D facility UST.
o OW-4 - downgradient of the area where most of the high
Total Petroleum Hydrocarbon concentrations were
detected_
Dalton, Olmsted & Fuglevand, Inc.
Interim Water Quality Monitoring Program
PACCAR Renton, Site
September 19, 1990 Page 3
Surface Water Sampling Locations -Two surface water locations will be sampled. The locations
are SW-3 and SW-4 as shown on Figure 2. These locations have been previously sampled in 1984,
1985, and 1988 as described in the remedial investigation report and in 1990 as part of the Interim
Water Quality Monitoring Program.
MONITORING SCHEDULE
Groundwater Wells -Table 1 lists the sampling schedule for individual wells which will be sampled.
For most wells data from two or more previous sampling events is already available. Sampling will
be conducted on an annual (March to May) and semiannual (September to November) schedule
depending on the well. Ten of the 27 wells will be sampled on a semiannual basis.
Surface Water Locations - Table 2 lists the sampling schedule for surface water sampling locations
SW-3 and SW-4. These locations will be sampled semi-annually during the initial on-set of a storm
event in the spring (March to May) and in the fall (September to November), weather permitting.
MONITORING PARAMETERS
Priority pollutant volatile and semivolatile chemicals will be analyzed in samples as listed in Tables
1 and 2. Dissolved arsenic and lead concentrations will also be analyzed. These parameters include
those classes of chemicals detected on the site and individual constituents which have exceeded
existing or proposed drinking water standards.
i
SAMPLING PROCEDURES AND ANALYTICAL METHODS
The previously approved sampling procedures and analytical methods will be used. These are
outlined in the Ecology approval work plan to complete the site RI/FS dated May 27, 1988- The
analytical methods to be used are:
o Volatiles SW 8240
o Semivolatiles SW 8270
o Arsenic SW 7061
o Lead, nickel, chromium
zinc and copper SW 6010
i
i
i
Dalton, Olmsted & Fuglevand, Inc.
Interim Water Quality Monitoring Program
PACCAR Renton, Site
September 19, 1990 Page 4
DATA EVALUATION AND REPORTING
The quality of the data will first be evaluated using QA procedures outlined in the previously
approved work plan (Hart Crowser 1988). It will then be compared to ARARs, remedial action
objectives and previously collected data to assess the performance of the remedial actions and to
identify trends in the monitoring data.
Periodic reviews of the water quality data will be made on at least an annual basis. Data will be
submitted to Ecology in a report within 90 days of receiving the data from the analytical laboratory.
This report will present the water level and water quality data in tabulated form, discuss the quality
of the data with respect to QA considerations, and compare the data to the performance criteria
outlined in the CAP.
Major project reviews will be conducted every five years as required by Section 121(c) of CERCLA
as amended by SARA_ This is the time at which the need for additional remedial action will be
considered.
ADJUSTMENTS TO MONITORING PROGRAM
As monitoring proceeds and trends in groundwater data are further refined, the monitoring program
will be evaluated and adjustments will be recommended as appropriate. These adjustments might
include adding or dropping wells from the program, revising the sampling schedule, changing the
frequency in which a particular parameter is analyzed, or changing analytical procedures.
It is anticipated that monitoring will be conducted for a 30-year period and will likely include analysis
of semivolatile organic chemicals, lead and/or arsenic for the duration of the program because these
are the major constituents which will remain on the site in soil after remediation is complete. Only
minor amounts of volatiles have been detected in soils on the site and we expect that they will
eventually reach non-detectable levels in groundwater, in which case they would be eliminated from
the on-going monitoring program.
Analytical Methods-The analytical procedures for volatiles and semivolatiles may be changed from
GC/MS to GC or to a screening technique. This change may be warranted based on our increased
knowledge of the chemicals that are in individual wells. A proposal will be submitted to Ecology
for aproval prior to implementing any changes.
Groundwater Sampling Technique - The initial sampling technique consists of purging and
sampling wells using a bailer. In the future, it may be decided to install dedicated pumps in wells
based on technical and cost considerations. A proposal will be submitted to Ecology for approval
prior to changing the sampling methods.
Dalton, Olmsted & Fuglevand, Inc. j
i
Interim Water Oualiry Monitoring Program
PACCAR Renton, Site
September 19, 1990 Page 5
Other Adjustments - Major program reviews will completed on a five year basis. Guidelines for
malting other adjustments are summarized below.
o During the First Five Years
r
a
The long-term monitoring program will include sampling of wells on a semi-annual or annual
basis. During the first five years of monitoring for wells which are being sampled on a semi-
annual basis, if a particular monitoring parameter class(volatile or semivolatile organic chemicals,
or metals--lead and arsenic) are not detected for three consecutive sampling-events, then the
analysis of the non-detectable parameter class will switch to annual sampling and analysis.
o After the First Five Years
If no volatile organic chemicals are detected in a well for at least three consecutive samplings
(including the previously collected data), then the analysis of VOCs in samples from that well
will be dropped from the program.
• If non-detectable concentrations of semivolatile organic chemicals, or if the concentration of
lead or arsenic are not detected above one-half the MCL for three consecutive samplings in
both a downgradient perimeter well and its respective downgradient off-site well (for example
LW-9D and OSP-5D), then analysis of the non-detectable contaminant will only continue in
the perimeter well.
o During Life of Monitoring Program
. If a parameter shows a confirmed increase over three consecutive samplings, then a plan will
be prepared for review and approval by Ecology to assess the cause of the increase and to
allow development and implementation of additional remedial action, as appropriate. This plan
might include confirmatory sampling, more frequent sampling of existing wells or
installation/sampling of additional wells.
• Other changes may be requested and with Ecology approval, be implemented.
Surface Water Sampling Location Plan
Houser Way North r
j 2 36" Diameter RCP Storm Sewer Line
/ SW-MH
j/ - - - - - - - - - - - - - - - 1
1 � /I
I
i
.10
a� Detection
g _ Il Pond
NI I
I
8 — co
y Inlet
o Catch I `?
Z I Channel Kenworth Truck
7 Plant Facility i I
6
I SW-DP i o ❑
5 _! I iZr
W-3 \ I 10
\ i aj SW-3® SurfaceWater Sampling
J ` - - - - - - - - - - - - - - - J i Location and Number
SW-4 Manhole and Cleanout
i (Proposed) Foundry Building o — f— — 1991 Storm Sewer Addition
l Flow and Direction
CL
��- Off—Site Storm Sewer
Garden Avenue North
� p I � Flow and Direction
i Perimeter Drainage
L L
Z i p
A C D E r G H I J K L M N 0 P Q R S I u V VV
Q o
0 250 500
J-1639-27 1194
N
Scale in Feet Figure 1
PACCAR, INC. .
NORTH GATE OFF SITE HAUL ROUTE
i 7 a: • AQU
IFER
RWAY NORTH . ..
13
:.
EXCAVATION AREA J-12 :0:SITE EQUIPMENT
SHEET 4 :I:ACCESS EAST : �:.::.......... :•:.•.....ZONE
°=
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METALS SOILS STOCKPILE �: �.■
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(SHEET 4) ♦: w
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EXCAVATION AREA H-11 — — — — — — AREA P-10 N
' (SHEET 4) EXCAVATION — (SHEET 7) jE
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(SHEET 5)
. .................. .... . .
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10 J i (SHEET 2) — - ; — — — ♦ (SHEET 7) rZ: '
V— EXCAVATION
N EXCAVATION AREA H-8
:::::::::: AREA 0-8
co � (SHEET 2) — — I (SHEET 5) L
� . - - - ■. :
AQUIFER
I EXCAVATION AREA E-7 EXCAVATION PROTECTION
(SHEET 2) ❑
7 AREa:J 8: — — .... `
+`SHEET 5): — — — — — — ■
. CAVATION ZONE 1
L — _ . . ....A EA•Q••-9....
I : HYD OCAR9QI4... :.•:: • S 'EET 7
I : •'-:..• ' ,., SOILS TOGKPILE •
I ( ) " .-BUILDING 1
GARDEN AVENUE NORTI-IJ
TO i 405
4 :• EXCAVATION EXCAVATION : .QFFICE AREA'S
PCB—SOILS EXCAVATION `,. AREA J-5 AREA 0-6 ■: :
::::: ---------
:(CONDUCTED SEPARATELY SHEET 5)
3 IZENWORTH ) \ (SHEET 5)
H .O R80 SO! EXCAVATION
R & D � STO IL HC ;:::; AREA Q-4 : CONTRACTOR'S
2 EXCAVATION `"' "''`'~' =`'' ='
:■ r — — — — (SHEET•. (SHEET 6) TEMPORARY
EXCAVATION AREA C-2 ='` AREA N-1 PARKING
SHEET 3 �`
�/ EXCAVATION AREA 1=-3'� -.��- (SHEET 6)
..� �. — .
!...
GARDEN AVENUE NORTH
f�:':::::.':.':::::.- ...' � .....:':::::::: - --------- --- :. .... ................. .... .� .. .........
EXCAVATION AREA .I-2 : :. NORTH/SOUTH
" (SHEET 3) BOUNDARY :EXCAVATION AREA U-1
BUILDING 17 & METALS SOILS = (SHEET 6)
:: : = : : : : : •-• ALTERNATE STOCKPILE HM ' ALT
: .... (-SHEET:6)
A B C D E F G H I J K L M N 0 P Q P S T U V W
SITE LOCATION PLAN
PROJECT: PACCAR North Site Grading and Filling D. Carey
Stormwater Quality Monitoring Results Date: 12/30/94
Sampling Location: SW-MH Stormwater collected from manhole - runoff from offsite sources
Date As Cr Cu Pb Ni Zn PCB TPH Benzene Vinyl
(All concentrations in mg / I ) Chloride
Renton Levels 0.005 0.005 0.007 0.001 0.080 0.059 1 100 0.005 0.004
Surface Water Criteria 0.050 0.050 1.000 0.050 5.000
10/24/91 ND 0.021 0.038 ND ND 0.150 ND 2 ND ND`1
10/24/91 Dupl. ND 0.027 0.033 0.042 0.014 0.250 ND 2 ND ND`1
11/11/91 ND 0.040 0.023 ND ND 0.160 ND ND ND ND`1
11/11/91 Dupl. 0.062 0.046 0.073 0.078 0.035 0.200 ND ND ND ND*1
12/18/91 0.011 0.018 0.019 ND ND 0.140 ND ND ND ND
1/27/92 0.012 0.028 0.035 0.051 ND 0.150 ND 1 ND ND
3/4/92 0.023 0.029 0.042 0.043 0.016 0.320 ND 4 ND ND
4/17/92 ND 0.011 0.015 ND ND 0.094 ND ND ND ND
6/12/92 0.025 0.027 0.090 0.043 0.021 0.610 ND 0.90 ND ND
9/24/92 0.013 0.020 0.030 0.080 0.010 0.330 ND ND ND ND
10/19/92 ND ND ND 0.004 ND 0.550 ND ND ND ND
1/24/94 0.006 ND 0.010 0.008 ND 0.140 ND ND ND ND
2/15/94 0.011 0.039 0.062 0.083 0.028 0.004 ND 6.20 ND ND
5/16/94 0.014 0.014 0.020 0.029 ND 0.230 ND ND ND ND
10/21/94 0.009 ND 0.039 0.010 ND 0.095 ND ND ND ND
Lab Detect Limits 0.005 0.010 0.0100 0.003 0.01 0.01 0.001 0.40 0.001 0.0002
Renton Values = City of Renton Threshold Levels
Surface Water Criteria - from Raw Water Quality Criteria for Public Supplies, Permissive criteria, 1968
ND = Not Detected at detection limit
NA = Not Analyzed
ND 1 = Not Detected (qualitative assessment)
Sampling Location: SW-3 Open drainage ditch/ manhole - onsite runoff
Date As Cr Cu Pb Ni Zn PCB TPH Benzene Vinyl
(All concentrations in mg / I ) Chloride
Renton Levels 0.005 0.005 0.007 0.001 0.080 0.059 1 100 0.005 0.004
10/24/91 ND 0.010 0.024 0.035 ND 0.089 ND ND ND ND'1
11/11/91 ND 0.024 0.045 0.047 0.023 0.130 ND ND ND ND"1
12/18/91 0.017 0.058 0.093 0.120 0.052 0.230 ND ND ND 0.0084
1/27/92 0.0084 0.031 0.049 0.067 0.017 0.150 ND 0.30 ND 0.0016
3/4/92 0.0063 0.012 0.016 ND ND 0.170 ND 2 ND 0.0019
4/17/92 ND 0.011 0.015 ND ND 0.094 ND ND ND ND
6/12/92 0.0059 ND 0.026 0.005 ND 0.200 ND ND ND ND
9/24/92 0.0060 0.010 0.020 0.060 0.010 0.190 ND ND ND ND
10/19/92 0.0110 0.020 0.040 0.050 0.020 0.290 ND ND ND ND
1/24/94 0.0070 0.015 0.025 0.031 0.014 0.170 ND ND ND 0.0017
2/15/94 0.0054 ND 0.012 0.013 ND 0.066 ND ND ND 0.0075
5/16/94 ND ND ND 0.018 ND 0.150 ND ND ND ND
10/21/94 ND ND 0.026 ND ND 0.034 ND ND ND ND
Lab Detect Limits 0.005 0.010 0.0100 0 0.01 0.001 0.40 0.001 0002
---------------
Sampling Location: SW-5 Surface water runoff completely from the south side of the site
Date As Cr Cu Pb Ni Zn PCB TPH Benzene Vinyl
(All concentrations in mg / I) Chloride
Renton Levels 0.005 0.005 0.007 0.001 0.080 0.059 1 100 0.005 0.004
Constructed and first sampled as below
1/24/94 0.027 0.049 0.110 0.320 0.041 0.410 ND ND ND 0.023
2/15/94 NA NA NA NA NA NA NA NA NA NA
5/16/94 0.680 3.000 5.100 9.200 1.500 23.000 ND ND ND 0.011
10/51/94 ND ND 0.024 ND ND 0.017 ND ND ND ND
Lab Detect Limits 0.005 0.010 0.0100 0.003 0.01 0.01 0.001 0.40 0.001 0.0002
Sampling Location: SW- DP DP = Detention Pond - North end of site, onsite drainage
Date As Cr Cu Pb Ni Zn PCB TPH Benzene Vinyl
(All concentrations in mg / I ) Chloride
Renton Levels 0.005 0.005 0.007 0.001 0.080 0.059 1 100 0.005 0.004
Constructed and first sampled as below
9/24/92 0.002 ND ND ND ND 0.340 ND ND ND ND
10/19/92 0.018 0.040 0.030 0.034 0.020 0.180 ND ND ND ND
1/24/94 ND ND ND ND ND 0.170 ND ND ND ND
2/15/94 ND ND ND ND ND 0.056 ND ND ND ND
5/16/94 ND ND ND ND ND 0.120 ND ND ND ND
10/21/94 ND ND 0.024 ND ND 0.074 ND ND ND ND
Lab Detect Limits 0.005 0.010 0.0100 0.003 0.01 0.01 0.001 0.40 0.001 0.0002
MONITOR.XLS Page 2
Sampling Location: SW-EC2 Erosion Control Pond 2 - onsite runoff, sampled from spillway
Date As Cr Cu Pb Ni Zn PCB TPH Benzene Vinyl
(All concentrations in mg /I ) Chloride
Renton Levels 0.005 0.005 0.007 0.001 0.080 0.059 1 100 0.005 0.004
12/18/91 ND 0.014 0.0074 ND ND ND ND ND ND ND
12/18/1991 Dupl. ND 0.015 0.0069 ND ND ND ND ND ND ND
1/27/92 ND 0.012 0.025 0.009 ND 0.041 ND ND ND ND
3/4/92 0.006 0.012 0.020 ND ND 0.049 ND ND ND ND
4/17/92 0.031 0.034 0.058 0.033 0.031 0.090 ND ND ND ND
6/12/92 0.010 ND 0.012 0.006 ND 0.110 ND ND 0.0006 ND
Discontinued after above date
Lab Detect Limits 0.005 0.010 0.0100 0.003 0.01 0.01 0.001 0.40 0.001 0.0002
Sampling Location: SW-4 Stormwater Basin - onsite runoff
Date As Cr Cu Pb Ni Zn PCB TPH Benzene Vinyl
(All concentrations in mg /I ) Chloride
Renton Levels 0.005 0.005 0.007 0.001 0.080 0.059 1 100 0.005 0.004
10/24/91 ND 0.025 0.026 0.030 ND 0.120 ND 2 ND ND"1
11/11/91 0.062 0.046 0.073 0.078 0.035 0.200 ND ND ND ND'1
11/11/91 Dupl. 0.056 0.056 0.079 0.083 0.037 0.230 ND ND ND ND`1
Not sampled after above date
Lab Detect Limits 0.005 0.010 0.0100 0.003 0.01 0.01 0.001 0.40 0.001 0.0002
MONITOR.XLS Page 3
Surface Water Sampling Location Plan
Ul
Houser Way North
{
12 36" Diameter RCP Storm Sewer Line `
- — — — — — — — — — — — — — — SW-MH
10 —
Q Detection ! i
g — I I Pond
! I
L I !
I
s� Inlet
o Catch
Z Channel Kenworth Truck
7 Plant Facility ! I
6 -
SW-DP ! I o�—
s
SW-3 \ i
SW-3® SurfaceWater Sampling
7 - - — — — — — — — — — — J Location and Number
J
2 , � �— SW-4 Manhole and Cleanout
(Proposed) Foundry Building i o — f-- — 1991 Storm Sewer Additior
Flow and Direction
a 1 D
aL �1 G3 Off-Site Storm Sewer
Garden Avenue North Flow and Direction
OLF ✓
— — — — — Perimeter Drainage
cn r—i
Cn
r
A C D E F G H I J K L M N 0 P Q R S T U V W d
o
0 250 500
J-1639-27 1194
Scale in reet Figure 1
Surface Water SamP/ing Location Plan
PACCAR Renton Sewer System
I Existing
-, Storm Sewer Line
Uone• .�,. -
..� .. � moon >�
! -
! ° \
RCP Storm Sewer Line ❑
j ®SW-3 Storm
SamplingSW—MH Location and uber 1 = ' I-- Manhole and Cleanout
1991 Storm Sewer Addition
I i
Existing Storm Sewer System
------------------------------ I
Abandoned Storm Sewer
RCP Storm ' —
Sewer Line I
I
SW I
;1 I
0 ,
--J
SW-3 �� ❑
Drainage DitchLji Ll
i
Erosion Control Pond 92
lU
with Spillway ---- --
1111110111101111
SW a
' I r-----------1 CO
------ -- --
RCP Storm Sewer Line ; 0
250 500
i i I I I I j I I I i I II i I i t Scale in Feet
I
* Notes: 1. Erosion control pond u2 is aboveground.
2. Sample will be from pond spillway. ArK
`i
3. Pond does not connect to manhole.
w-W-R
J-1639-23 12191
Figure 1
Arm
CROWS Hart Crowser,Inc.
1910 fairviewAvenue East
Seattle,Washington 98102-3699
Fax 206.328.5581
Tel206.324.9530
Earth and Environmental Technologies
J-1639-27
December 12, 1994
Mr. Robert K. Butler, P.E.
PACCAR Inc
P.O. Box 1518
Bellevue, Washington 98009
Re: October 1994 Surface Water Quality Monitoring Results
Kenworth Truck Plant Operation and South Site Remediation Activities
PACCAR, Renton Site
Dear Mr. Butler:
This letter report presents the results of the semi-annual surface water sampling
conducted during ongoing site operation and remediation activities at the PACCAR
Renton Site. Samples were collected on October 21, 1994. Final analytical results were
received by Hart Crowser on November 15, 1994. Sampling and analyses were
conducted in accordance with Hart Crowser's Surface Water Quality Monitoring
Program, as approved and revised by the City of Renton Storm and Waste Water
Division on September 19, 1991, and February 24, 1994.
On February 24, 1994, the City of Renton approved modifications to the Surface Water
Monitoring Plan: the addition of sample location SW-5; and reduced sampling frequency
to two events a year, in the Spring (March to May) and in the Fall (September to
November). This report presents the results of the Fall sampling event conducted in
October 1994.
SUMMARY OF FINDINGS
► PCBs, TPH, benzene, vinyl chloride, and dissolved metals including chromium and
nickel were not detected in any of the surface water samples;
Seattle Tacoma•Richland•Anchorage•Portland•Denver•Honolulu•San Francisco•Long Beach•San Diego•Mexico City
Arm
PACCAR Inc J-1639-27
December 12, 1994 Page 2
► The off-site surface water sample SW-MH, considered the background or baseline
sample, had the highest concentrations of all samples for the dissolved metals arsenic,
copper, lead, and zinc, including the only detectable concentration of dissolved
arsenic and lead (0.0088 and 0.010 mg/L, respectively).
► The surface water sample collected from SW-3, representing the point of compliance
for surface waters discharged from PACCAR, contained a dissolved copper
concentration (0.026 mg/L) above the City of Renton Threshold Levels (based on
total metals concentration) and zinc (0.034 mg/Q. No other dissolved metals were
detected in this sample.
► The surface water sample collected from SW-5, representing the south half of the
PACCAR site (currently graded for erosion control or under remediation), contained
dissolved copper (0.024 mg/L) above the City of Renton Threshold Levels (based on
total metals concentration) and zinc (0.017 mg/L). No other dissolved metals were
detected in this sample.
► The surface water sample collected from SW-DP, representing drainage from the
north half of the former PACCAR site (currently the Kenworth Plant), contained
dissolved copper and zinc (0.024 and 0.074 mg/L, respectively). Dissolved copper
and zinc concentrations exceed the City of Renton Threshold Levels (based on total
metals concentration).
SURFACE WATER SAMPLING LOCATIONS
Surface water sampling was conducted at four locations as shown on Figure 1. A
description of each location and the surface water encountered at each location is given
below.
► SW-MH Surface water generated completely off site and entering the PACCAR
storm sewer system at the southeast corner of the site. The sample was
collected within a manhole. The surface water stream had heavy turbidity
and no sheen, and no hydrocarbon nor hydrogen sulfide odor. Surface
water was flowing slowly through the pipe at the time of sampling.
► SW-3 Combined surface waters generated on site (erosion control ponds, ditches,
and E/W Interceptor) and off site (Houser Way Bypass) was sampled at the
South Site Interceptor Manhole, at Station 22+06. The surface water
Arm
xx
PACCAR Inc J-1639-27
December 12, 1994 Page 3
stream had slight turbidity and no sheen, and no hydrocarbon nor hydrogen
sulfide odor. The surface water was flowing slowly through the pipe at the
.time of sampling.
► SW-5 Surface water generated completely on the PACCAR south site from
erosion control ponds and ditches. The surface water had no sheen, no
hydrocarbon odor, and no turbidity. The surface water was flowing slowly
through the pipe at the time of sampling.
► SW-DP (Formerly SW-EC2) Surface water generated completely on the north site
and collected in a detention pond in the Kenworth Plant was sampled at the
outlet channel. The surface water had.slight turbidity and no sheen nor
hydrocarbon odor. Surface water was flowing moderately over the exit
weir at the time of sampling.
Chemical concentrations from sample location SW-MH (off-site storm waters) will be
regarded as background or baseline levels and used in comparison to water quality of
on-site PACCAR-generated waters. The Cleanup Action Plan for the PACCAR site
identifies the point of compliance (SW-3) as that point where surface waters collected
from the PACCAR site are discharged across the site boundary.
SURFACE WATER SAMPLING ANALYSES
We collected water samples at locations SW-MH, SW-3, SW-5, and SW-DP on
October 21, 1994. The samples were analyzed by the Hart Crowser Chemistry
Laboratory for total petroleum hydrocarbons by WTPH-HCID, and by Analytical
Technologies, Inc. (ATI), for the following constituents:
► Chromium, copper, nickel, and zinc (EPA Method 6010, ICAP);
► Arsenic (EPA Method 7060, AA/GF);
► Lead (EPA Method 7421, AA/GF);
► Polychlorinated Biphenyls (EPA Method 8080, PCBs only);
► Benzene (EPA Method 8020); and
► Vinyl chloride (EPA Method 8010).
Table 1 summarizes the analytical results for the October 1994 surface water sampling
round. Results for dissolved metals analysis are presented. No samples were submitted
for total metals analyses.
tN
PACCAR Inc J-1639-27
December 12, 1994 Page 4
DISCUSSION
PCBs, TPH, benzene, vinyl chloride, and dissolved chromium and nickel were not
detected in the four surface water samples collected during this round of sampling.
These results are an improvement over the prior sampling round in May 1994, when
these constituents, except PCBs, were detected in at least one surface water sample.
The dissolved metals detected during this round of sampling include arsenic, copper,
lead, and zinc. In all cases, the highest concentration detected for these four metals
occurred in surface water sample SW-MH, generated completely off site. In fact,
dissolved arsenic and lead were detected in surface water sample SW-MH only.
Dissolved copper and zinc were detected in all four surface water samples, ranging in
concentration from 0.024 to 0.039 mg/L and 0.017 to 0.095 mg/L, respectively.
PACCAR continues to inspect the conditions of their storm water collection and
conveyance system. Any defects to the system, such as large quantities of sediment in a
catch basin, are addressed through routine maintenance.
LIMITATIONS
Work for this project was performed, and this letter report prepared, in accordance with
generally accepted professional practices for the nature and conditions of the work
completed in the same or similar localities at the time the work was performed. It is
intended for the exclusive use of PACCAR Inc for the specific application to the
referenced property. No other warranty, express or implied, is made. Any questions
regarding our work and this letter report, the presentation of the information, and the
interpretation of the data are welcome and should be referred to the undersigned.
Al
xx
PACCAR Inc J-1639-27
December 12, 1994 Page 5
We trust this letter meets your needs. Please call if you have any further questions.
Sincerely,
HART CROWSER, INC.
S H. KLEP , P.E. R K. KUROIWA
rmcipal Project Engineer
JHK/MCK/TJ:sde
SURF1094.LR
Attachments:
Table 1 - Analytical Results of Surface Water Samples
October 1994 Sampling Round
Figure 1 - Surface Water Sampling Location Plan
October 1994 Sampling Round
cc: (w/Attachments)
Bob Butler, PACCAR (2)
James Leonard, PACCAR
Ron Straka, City of Renton (2)
David South, Washington State Dept of Ecology (3)
Table 1 - Analytical Results of Surface Water Samples
October 1994 Sampling Round
Dissolved Concentration in mg/L Concentration in mg/L
Sampling Vinyl
Sample ID Date As Cr Cu Pb Ni Zn PCB TPH Benzene Chloride
SW-Mfl 10/21/94 0.0088 ND 0.039 0.010 ND 0.095 ND ND ND ND
SW-3 10/21/94 ND ND 0.026 ND ND 0.034 ND ND ND ND
SW-5 10/21/94 ND ND 0.024 ND ND 0.017 ND ND ND ND
SW-DP 10/21/94 ND ND 0.024 ND ND 0.074 ND ND ND ND
Trip Blank 10/21/94 NA NA NA NA NA NA NA NA ND ND
Laboratory 0.005 0.010 0.010 0.003 0.010 0.010 0.001 0.2 . 0.0005 0.0002
Detection Limits
City of Renton 0.011' 0.005' 0.007' 0.001' 0.080' 0.059' 1 100 0.005 0.0004
Threshold Levels
I = Sample results are estimated because of poor surrogate and/or matrix spike recoveries.
NA = Not analyzed or not applicable.
ND = Not detected at laboratory detection limit.
SW-MII = Southeast manhole; off-site surface water only.
SW-3 = South Site Interceptor Manhole; Point of Complicnce; both on-site and off-site surface water.
SW-5 = Gast/West Interceptor Manhole; south site surface water only.
SW-DP = North Site Detention Pond; on-site surface water only.
' = Based on "total metals concentration.
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1910 fairview Avenue East
CITY OF RENTON Seattle,Washington 98102
Engineering Dept. FAX206.328.5581
Earth and Environmental Technologies
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To: Washington Department of Ecology Date: June 15, 1994
3190 - 160th Avenue SE
Bellevue, Washington 98008-5452 ,Job No.: 1639-27
Attn: David South, P.E.
Re: PACCAR Renton Site
We are sending the following items:
.<
2'
6/15/94 3 May 1994 Surface Water Quality Monitoring Results
Kenworth Truck Plant Operation and South Site
Remediation Activitities
PACCAR, Renton Site
These are transmitted:
X For your ❑ For action ❑ For review ❑ For your ❑ As requested
information specified below and comment use
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The City of Renton has approved modifications to the Surface Water Monitoring Plan which allow
a reduced sampling frequency to two times a year.
By: M. Catherine Kiley
cc: Ron Straka, City of Renton (2) Title: Project Environmental Chemist
Bob Butler, PACCAR, Bellevue (2)
James Leonard, PACCAR, Bellevue (1)
163927\SURFWTR.LOT
Seattle • Tacoma • Richland • Anchorage • Portland • San Francisco • Long Beach
�r
HA.Arm
Avon Hart ei Inc.
• 1910 Fairview Avenue East
Seattle,Washington 98102
FAX 206.328.5581
Earth and Environmental Technologies 206.324.9530
J-1639-27
June 15, 1994
Mr. Robert K. Butler, P.E.
PACCAR Inc.
P.O. Box 1518
Bellevue, Washington 98009
Re: May 1994 Surface Water Quality Monitoring Results
Kenworth Truck Plant Operation and South Site Remediation Activities
PACCAR, Renton Site
Dear Mr. Butler:
This letter report presents the results of the semi-annual surface water sampling
conducted during ongoing site operation and remediation activities at the PACCAR
Renton Site. Samples were collected on May 16, 1994. Final analytical results were
received by Hart Crowser on June 6, 1994. Sampling and analyses were conducted in
accordance with Hart Crowser's Surface Water Quality Monitoring Program, as approved
and revised by the City of Renton Storm and Waste Water Division on September 19,
1991, and February 24, 1994.
On February 24, 1994, the City of Renton approved modifications to the Surface Water
Monitoring Plan: the addition of sample location SW-5; and reduced sampling frequency
to two events a year, in the Spring (March to May) and in the Fall (September to
November). This report presents the results of the Spring sampling event conducted in
May 1994.
SUNUVIARY OF FINDINGS
► TPH, PCBs, and benzene were not detected in any of the surface water samples;
Seattle - Tacoma • Richland - Anchorage - Portland - San Francisco - Long Beach
f�
PACCAR Inc J-1639-27
June 15, 1994 Page 2
► The surface water sample collected from SW-3, representing the point of compliance
for surface waters discharged from PACCAR, had concentrations of total and
dissolved metals below the Washington State Water Quality Standards (State
Standards). Vinyl chloride was not detected in this surface water sample;
► With the exception of the south site surface water (SW-5), the off-site surface water
had the highest concentrations of total metals. Additionally, the off-site surface water
sample had the only detectable concentration of dissolved arsenic. Concentrations of
metals, except dissolved zinc, detected in the off-site surface water sample are below
State Standards;
► In general, the on-site surface water sample collected from location SW-5 had
significantly higher concentrations of total metals than other on-site (detention pond),
off-site, or combined surface water samples, and was the only sample in which vinyl
chloride was detected (0.011 mg/L). Dissolved metals were not detected in this
sample; and
► Total and dissolved zinc were the only constituents detected in the on-site surface
water sample from the detention pond. Both total and dissolved zinc concentrations
exceed the City of Renton Threshold Levels and State Standards.
SURFACE WATER SAMPLING LOCATIONS
Surface water sampling was conducted at four locations as shown on Figure 1. These
locations and their descriptions are given below.
► SW-MH Surface water generated completely off site and entering the PACCAR
storm sewer system at the southeast corner of the site was sampled at the
manhole at this location. The surface water stream had no sheen, no
hydrocarbon or hydrogen sulfide odor, slight turbidity, and was
approximately 2 feet deep. Surface water was flowing slowly through the
pipe at the time of sampling.
► SW-3 (Combined surface water) Surface water generated on site (erosion control
ponds and ditches, and E/W Interceptor) and off site (Houser Way Bypass)
was sampled at the South Site Interceptor Manhole, at Station 22+06. The
surface water stream had no sheen, no hydrocarbon or hydrogen sulfide
fff
PACCAR Inc J-1639-27
June 15, 1994 Page 3
odor, slight turbidity, and was approximately 2.5 feet deep. The surface
water was flowing moderately through the pipe at the time of sampling.
► SW-DP (Formerly SW-EC2) Surface water generated completely on site and
collected in a detention pond in the north half of the PACCAR site was
sampled at the outlet channel. The surface water had no.noticeable
turbidity, no sheen or hydrocarbon odor, and was approximately 2 feet
deep. Surface water was flowing moderately over the weir into a 30-inch
pipe at the time of sampling.
► SW-5 Surface water generated completely on the south site was sampled at this
location. The surface water had a slight sheen, no hydrocarbon odor, was
very turbid, and was approximately 6 to 10 inches deep. Surface water
flow was barely visible at the time of sampling.
Chemical concentrations from sample location SW-MH (off-site storm waters) will be
regarded as background or baseline levels, and used in comparison to water quality of on-
site PACCAR-generated waters. The Cleanup Action Plan for the PACCAR site
identifies the point of compliance as that point where surface waters from the PACCAR
site are discharged across the site boundary; location SW-3 is regarded as the point of
compliance.
SURFACE WATER SAMPLING ANALYSES
We collected water samples at locations SW-MH, SW-3, SW-5, and SW-DP on May 16,
1994. The water samples were analyzed by the Hart Crowser Chemistry Laboratory for
TPH by EPA Method 8015 Modified. The samples were analyzed by Analytical
Technologies, Inc. (ATI), for the following constituents:
► Chromium, copper, nickel, and zinc (EPA Method 6010, ICAP) (Dissolved and
Total);
► Arsenic (EPA Method 7060, AA/GF) (Dissolved and Total);
► Lead (EPA Method 7421, AA/GF) (Dissolved and Total);
► Polychlorinated Biphenyls (EPA Method 8080, PCBs only);
► Benzene (EPA Method 8020); and
► Vinyl chloride (EPA Method 8010).
t1
PACCAR Inc J-1639-27
June 15, 1994 Page 4
RESULTS
Table 1 summarizes the analytical results for the May 1994 surface water sampling
round. Note that results for both total and dissolved metals analysis are presented.
In general, the on-site surface water sample collected from location SW-5 had higher
concentrations of total metals than other on-site (detention pond), off-site, or combined
surface water samples. However, dissolved metals were not detected in this on-site
surface water sample. This surface water sample was the only one in which vinyl
chloride was detected (0.011 mg/L).
Total and dissolved concentrations of zinc were the only constituents detected in the on-
site surface water sample from the detention pond (SW-DP); both total and dissolved zinc
concentrations were above the City of Renton Threshold levels and the State Standards.
The off-site surface water sample (SW-MH) had concentrations of total arsenic,
chromium, copper, lead, and zinc above the City of Renton Threshold Levels.
Concentrations of metals, except dissolved zinc, detected in the off-site surface water
sample were below State Standards.
TPH, PCBs and benzene were not detected in any of the surface water samples. Vinyl
chloride was detected in sample SW-5 at a concentration of 0.011 mg/L, above the City
of Renton Threshold Level of 0.004 mg/L. However, vinyl chloride was not detected in
the combined surface water sample SW-3.
The total zinc concentration in the combined surface water sample (SW-3) was above the
City of Renton Threshold Level. However, the surface water sample collected from
SW-3, had a concentration of dissolved zinc that was below both the City of Renton
Threshold Level and State Standards. Total lead was detected in this sample above the
City of Renton Threshold Levels, but below State Standards. Arsenic, chromium, copper
and nickel were not detected in this combined surface water sample.
DISCUSSION
Although the results for total metals and vinyl chloride detected in the surface water
sample from the south site (SW-5), exceeded the City of Renton Threshold Levels and
the State Standards, the results for the surface water collected at SW-3 (point of
compliance) were below these water quality criteria.
L�
PACCAR Inc J-1639-27
June 15, 1994 Page 5
PACCAR is assessing and improving the drainage network on the south site. We believe
that these improvements will further enhance surface water quality at locations SW-5 and
subsequently at SW-3. As readings at SW-5 were higher than background readings at
SW-MH, PACCAR will investigate the source and initiate actions to correct faults that
could potentially allow infiltration of contaminants into the storm water drainage system.
LINUTATIONS
Work for this project was performed, and this letter report prepared, in accordance with
generally accepted professional practices for the nature and conditions of the work
completed in the same or similar localities at the time the work was performed. It is
intended for the exclusive use of PACCAR Inc for the specific application to the
referenced property. No other warranty, express or implied, is made. Any questions
regarding our work and this letter report, the presentation of the information, and the
interpretation of the data are welcome and should be referred to the undersigned.
Arm
PACCAR Inc 1-1639-27
June 15, 1994 Page 6
We trust this letter meets your needs. Please call if you have any further questions.
Sincerely,
HART CROWSER, INC.
tna
EPP , P.E. MARY ATHERINE MILEY
Project Environmental Chemist
AISWAon S ientist
r�uvMcxrr�:.a�
Attachments:
Table 1 - Analytical Results of Surface Water Samples
May 1994 Sampling Round
Figure 1 - Surface Water Sampling Location Plan
May 1994 Sampling Round
cc: (w/Attachments)
Bob Butler, PACCAR (2)
James Leonard, PACCAR
Ron Straka, City of Renton (2)
David South, Washington State Dept of Ecology (3)
Table 1 - Analytical Results of Surface Water Samples
May 1994 Sampling Round
Total/Dissolved Concentration in mg/L Concentration in mg/L
Sampling Vinyl
Sample ID Date As Cr Cu Pb Ni Zn PCB TPH Benzene Chloride
SW-MH 5/16/94 0.014/ 0.014/ 0.020/ 0.029/ ND/ 0.23/ ND ND ND ND
0.0096 ND ND ND ND 0.099
SW-3 5/16/94 ND/ ND/ ND/ 0.018/ ND/ 0.15/ ND ND ND ND
ND ND ND ND ND 0.049 .
SW-5 5/16/94 0.68/ 3.0/ 5.1/ 9.24/ 1.5/ 23/ ND J ND ND 0.011
ND ND ND ND ND ND
SW-DP 5/16/94 ND/ ND/ ND/ ND/ ND/ 0.12/ ND ND ND ND
ND ND ND ND ND 0.081
Trip Blank 5/16/94 NA NA NA NA NA NA NA NA ND ND
Laboratory 0.005/ 0.010/ 0.010/ 0.003/ 0.010/ 0.010/ 0.001 0.2 0.0005 0.0002
Detection Limits 0.005 0.010 0.010 0.003 0.010 0.010
City of Renton 0.005 0.005 0.007 0.001 0.080 0.059 1 100 0.005 0.004
Threshold Levels'
Washington State 0.190' 0.1172 0.0071 0.090, 0.0833 0.0523 NA NA NA NA
Water Quality
Standards
J = Sample results are estimated due to poor surrogate and/or matrix spike recoveries.
NA = Not analyzed or not applicable.
ND = Not detected at laboratory detection limit.
SW-MH = Southeast manhole; off-site surface water only.
SW-3 = South Site Interceptor Manhole; both on-site and off-site surface water.
SW-5 = East/West Interceptor Manhole; south-site surface water only. x
SW-DP = North Site Detention Pond; on-site surface water only. �.
' = Based on Total metals concentration.
2 = Based on Total metals concentration for total chromium. W O
,p
3 = Based on Dissolved metals concentration.
= Analyzed by ICAP. J
SURF0594.LR -Tbl I
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Scale in r-eet Figure 1
ALM MAR 3 01994
Hart Cromer Inc.
HM. TCROWS WE CIT� OF RENTON 1910Fairview Avenue East
Engineering Dept Seattle,Washington 98102
FAX 206.328.5581
Earth and Environmental Technologies 206.324.9530
R.E.,
........... . ....... ..... ....... M
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To: Washington Department of Ecology Date: March 29, 1994
3190 - 160th Avenue SE
Bellevue, Washington 98008-5452 Job No.: 1639-27
A ttn: David South, P.E.
Re: PACCAR Renton Site
We are sending the following items:
................. .............. ..... ................................................................ .............
.........................................
.................... ...... . ......... ...........
....... ... ... ..... .............
..... ..................... ............ . ........
...........I...... ::: .......................
...... .... ........ .......
...................
. ............ .....
..................... . ........
3/28/94 3 February 1994 Surface Water Quality Monitoring Results
Kenworth Truck Plant Operation and South Site
Remediation Activitities
PACCAR, Renton Site
These are transmitted:
For your D For action El For review For your 0 As requested
information specified below and comment use
xxxx:
. ...............
..................
............. ....
. ....................... . .......... ........................
...... ..............................................
x
X
... ......
This will be the last monthly Surface Water Quality report, as the City of Renton has approved
modifications to the Surface Water Monitoring Plan which allow a reduced sampling frequency to
two times a year.
By: M. Catherine Kiley
cc: Ron Straka, City of Renton (2) Title: Project Environmental Chemist
Bob Butler, PACCAR, Bellevue (2)
James Leonard, PACCAR, Bellevue (1)
Claus Hackenberger, PACCAR, Renton (1)
163927\SURFWTR.LOT
Seattle - Tacoma - Richland - Anchorage - Portland - San Francisco - Long Beach
HA. RTCR0WSER Hart er,Inc.
1910 Fairview A Avenvenue East
Seattle,Washington 98102
FAX 206.328.5581
Earth and Environmental Technologies 206.324.9530
J-1639-27
March 29, 1994
Mr. Robert K. Butler, P.E.
PACCAR Inc.
P.O. Box 1518
Bellevue, Washington 98009
Re: February 1994 Surface Water Quality Monitoring Results
Kenworth Truck Plant Operation and South Site Remediation Activities
PACCAR, Renton Site
Dear Mr. Butler:
This letter report presents the results of monthly surface water sampling conducted during
ongoing site operation and remediation activities at the PACCAR Renton Site. Samples
were,collected on February 15, 1994. Final analytical results were received by Hart
Crowser on March 9, 1994. Sampling and analysis were conducted in accordance with
Hart Crowser's Surface Water Quality Monitoring Program, as approved and revised by
the City of Renton Storm and Waste Water Division on September 19, 1991.
On February 24, 1994, the City of Renton approved modifications to the Surface Water
Monitoring Plan: the addition of sample location SW-5; and reduced sampling frequency
to two times a year, in the Spring (March to May) and in the Fall (September to
November). This report presents the results of the last monthly sampling
event—February 1994.
SUMMARY OF FINDINGS
► PCBs and benzene were not detected in any of the surface water samples analyzed;
► The surface water sample collected from SW-3, representing the point of compliance
for surface waters discharged from PACCAR, had concentrations of dissolved metals
(copper, lead, nickel, and zinc), and total metals (arsenic and chromium) below the
Seattle • Tacoma • Richland • Anchorage • Portland • San Francisco • Long Beach
Arm
PACCAR Inc J-1639-27
March 29, 1994 Page 2
Washington State Water Quality Standards (State Standards). Vinyl chloride was
detected for the first time in this surface water sample at a concentration of
0.0075 mg/L, which exceeds the City of Renton Threshold Level of 0.004 mg/L;
► Total and dissolved zinc were the only constituents detected in the on-site surface
water sample from the detention pond. Concentrations were below the City of Renton
Threshold Levels and State Standards; and
► Total concentrations of arsenic, chromium, copper, lead, and zinc detected in the off-
site surface water sample exceed the City of Renton Threshold Levels.
Concentrations of all metals detected in the off-site surface water sample are below
State Standards.
SURFACE WATER SAMPLING LOCATIONS
Surface water sampling was conducted at SW-MH, SW-3, and SW-DP as shown on
Figure 1. These locations and their descriptions are given below.
► SW-MH Surface water generated completely off site and entering the PACCAR
storm sewer system at the southeast corner of the site was sampled at the
manhole at this location. The surface water stream had a slight sheen, no
hydrocarbon or hydrogen sulfide odor, visible turbidity, and was
approximately 2 feet deep. Surface water was flowing through the pipe at
the time of sampling.
► SW-3 (Combined surface water) Surface water generated on site (erosion control
ponds and ditches, and E/W Interceptor) and off site (Houser Way Bypass)
was sampled at the South Site Interceptor Manhole, at Station 22+06. The
surface water stream had no noticeable sheen, no noticeable hydrocarbon
or hydrogen sulfide odor, slight turbidity, was reddish brown in color, and
was approximately 2.5 feet deep. The surface water was flowing through
the pipe at the time of sampling.
► SW-DP (Formerly SW-EC2) Surface water generated completely'on site and
collected in a detention pond in the north half of the PACCAR site was
sampled at the outlet channel. The surface water had no noticeable
turbidity, no sheen or hydrocarbon odor, and was approximately 2 feet
Mrs
L�
PACCAR Inc J-1639-27
March 29, 1994 Page 3
deep. Surface water was flowing over the weir into a 30-inch pipe at the
time of sampling.
► SW-5 Surface water generated completely on the south site is sampled at this
location. At the time of sampling, there was no surface water flow. As a
result, the water was not sampled.
Chemical concentrations from sample location SW-MH (off-site storm waters) will be
regarded as background or baseline levels, and used in comparison to water quality of on-
site PACCAR-generated waters. The Cleanup Action Plan for the PACCAR site
identifies the point of compliance as that point where surface waters from the PACCAR
site are discharged across the site boundary; location SW-3 is regarded as the point of
compliance.
PACCAR is assessing and improving the drainage network on the south site. We believe
that these improvements will enhance surface water quality at locations SW-5 and
subsequently at SW-3. Should vinyl chloride continue to be detected in surface water at
SW-3, PACCAR will investigate the source and initiate actions to correct faults that
could potentially allow infiltration of contaminants into the storm water drainage system.
SURFACE WATER.SAMPLING ANALYSES
We collected water samples at locations SW-MH, SW-3, and SW-DP on February 15,
1994. The water samples were analyzed by the Hart Crowser Chemistry Laboratory for
TPH by EPA Method 8015 Modified. The samples were analyzed by Analytical
Technologies, Inc. (ATI), for the following constituents:
► Chromium, copper, nickel, and zinc (EPA Method 6010, ICAP) (Dissolved and
Total);
► Arsenic (EPA Method 7060, AA/GF) (Dissolved and Total);
► Lead (EPA Method 7421, AA/GF) (Dissolved and Total);
► Polychlorinated Biphenyls (EPA Method 8080, PCBs only);
► Benzene (EPA Method 8020); and
► Vinyl chloride (EPA Method 8010).
L�
Arm
PACCAR Inc J-1639-27
March 29, 1994 Page 4
RESULTS
Table 1 summarizes the analytical results for the February 1994 surface water sampling
round. Note that results for both total and dissolved metals analysis are presented.
In general, the off-site surface water sample had higher concentrations of total metals and
TPH than on-site (detention pond) or combined surface water samples. However,
dissolved metals were not detected in this off-site surface water sample, with the
exception of dissolved zinc (0.039 mg/Q. TPH was detected at a concentration of
6.2 mg/L, well below the City of Renton Threshold Level of 100 mg/L.
The off-site surface water sample had concentrations of total arsenic, chromium, copper,
lead, and zinc above the City of Renton Threshold Levels. Concentrations of all metals
detected in the off-site surface water sample are below State Standards.
Only zinc was detected in the on-site surface water sample from the detention pond
(SW-DP); concentrations of both total and dissolved zinc were below City of Renton
Threshold Levels and State Standards.
PCBs and benzene were not detected in any of the surface water samples. Vinyl chloride
was detected in sample SW-3 at a concentration of 0.0075 mg/L, above the City of
Renton Threshold Level of 0.004 mg/L. The surface water sample collected from SW-3
had concentrations of dissolved metals (copper, lead, nickel, and zinc), and total metals
(arsenic and chromium) below the State Standards.
Concentrations of total metals (arsenic, chromium, copper, lead, and zinc) in the
combined surface water sample (SW-3) were above the City of Renton Threshold Levels.
However, the surface water sample collected from SW-3, had concentrations of dissolved
metals (copper, lead, nickel, and zinc), and total metals (arsenic and chromium) that were
below the State Standards.
LIMITATIONS
Work for this project was performed, and this letter report prepared, in accordance with
generally accepted professional practices for the nature and conditions of the work
completed in the same or similar localities at the time the work was performed. It is
intended for the exclusive use of PACCAR Inc for the specific application to the
referenced property. No other warranty, express or implied, is made.
PACCAR Inc J-1639-27
March 29, 1994 Page 5
Any questions regarding our work and this letter report, the presentation of the
information, and the interpretation of the data are welcome and should be referred to the
undersigned.
We trust this letter meets your needs. Please call if you have any further questions.
Sincerely,
HART CROWSER, INC.
/o�"
eA
. KLE PE, MARY CATHERINE KILEY
Project Environmental Chemist
AMMERLE
ronmental Scientist
JHK/MCK/LPH:s&
SURF0294.LR
Attachments:
Table 1 - Analytical Results of Surface Water Monitoring
February 1994 Sampling Round
Figure 1 - Surface Water Sampling Location Plan
February 1994 Sampling Round
cc: (w/Attachments)
Bob Butler, PACCAR (2)
Claus Hackenberger, PACCAR
James Leonard, PACCAR
Ron Straka, City of Renton (2)
David South, Washington State Dept of Ecology (3)
Table 1 - Analytical Results of Surface Water Monitoring
February 1994 Sampling Round
Total/Dissolved Concentration in mg/L Concentration in mg/L
Sampling Vinyl
Sample ID Date As Cr Cu Pb Ni Zn PCB TPH Benzene Chloride
SW-MH 2/15/94 0.011/ 0.039/ 0.062/ 0.083/ 0.028/ 0.38/ ND 6.2 ND ND
ND ND ND ND ND 0.0039
SW-3 2/15/94 0.0054/ ND/ 0.012/ 0.013/ ND/ 0.066/ ND J ND ND 0.0075
ND ND ND ND ND 0.012
SW-5 --- NA/ NA/ NA/ NA/ NA/ NA/ NA NA NA NA
NA NA NA NA NA NA
SW-DP 2/15/94 ND/ ND/ ND/ ND/ ND/ 0.056/ ND ND ND ND
ND ND ND ND ND 0.027
Trip Blank 2/15/94 NA NA NA NA NA NA NA NA ND ND
Laboratory 0.005/ 0.010/ 0.010/ 0.003/ 0.010/ 0.010/ 0.001 0.2 0.0005 0.0002
Detection Limits 0.005 0.010 0.010 0.003 0.010 0.010
City of Renton 0.005 0.005 0.007 0.001 0.080 0.059 1 100 0.005 0.004
Threshold Levels
Washington State 0.190, 0.1171 0.0073 0.0903 0.0833 0.0523 NA NA NA NA
Water Quality
Standards
J = Sample results are estimated due to poor surrogate and/or matrix spike recoveries.
ND = Not detected at laboratory detection limit.
SW-MH = Southeast manhole; off-site surface water only.
SW-3 = South Site Interceptor Manhole; both on-site and off-site surface water.
SW-5 = East/West Interceptor Manhole; south-site surface water only. x
SW-DP = North Site Detention Pond; on-site surface water only.
1 = Based on Total metals concentration. , n
2 = Based on Total metals concentration for total chromium. w p
3 = Based on Dissolved metals concentration. ;o
J ►may
SURFO?A.LK -7h1 1
Surface Water Sampling Location Plan - February 1994 Sampling Round
[Houser Way North13
—
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12 36 Diameter RCP Storm Sewer Line
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SW-MH
— -
10 —
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J
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SW-3 SurfaceWater Sampling
S�y_p�, I o Location and Number
z
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S W-3 I ————��/
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�1 __ ` \ Flow and Direction
`t
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—- — - - - - - � Flow and Direction
Perimeter Drainage
L.
- -- �i SW-g# Foundry Building
a — -*-— Predemolition Storm Drain
- Flow and Direction
- — 13
dt• No Surface Water Flow-
1 - ----__ —__ L--- -- ------ _----- ----p -- - - --- -- -------- - -- - ---
a -- Gorden Avenue North ------- not sampled 2/94
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A
HNRTCROWSER Hart Aven er,Inc.
Seattle,
FaiWashin ton 9 East
Seattle,Washington 98102
DFAX 206.328.5581
206.324.9530
Earth and Environmental Technologies
J-1639-27 �pR 1 199�
March 15, 1994 CITY CF �E Dip
t.
Erg����ring .
Mr. Robert K. Butler, P.E.
PACCAR Inc.
P.O. Box 1518
Bellevue, Washington 98009
Re: Correction Page for January 1994 Surface Water Quality Monitoring Report
Kenworth Truck Plant Operation and South Site Remediation Activities
PACCAR, Renton Site
Dear Mr. Butler:
This letter presents a corrected Table 1 of the January 1994 Surface Water Quality
Monitoring report dated March 8, 1994. Vinyl chloride was originally listed in Table 1
as non-detected (ND) in sample SW-3. As noted in the text of the report, however, vinyl
chloride was detected in sample SW-3 at a concentration of 0.0017 mg/L. Please replace
the Table 1 with the enclosed replacement page. Please call if you have any questions.
Sincerely,
HART CROWSER, INC.
MARY CA KILEY
Project Environmental Chemist
MCK/SW 194RPG.LR
Attachment:
Table 1 - Analytical Results of Surface Water Monitoring
January 1994 Sampling Round
cc: (w/Attachment)
Bob Butler, PACCAR (2)
Claus Hackenberger, PACCAR
James Leonard, PACCAR
Ron Straka, City of Renton (2)
David South, Washington State Dept of Ecology (3)
Seattle • Tacoma • Richland • Anchorage • Portland • San Francisco Long Beach
` I
i
Table 1 - Analytical Results of Surface Water Monitoring
January 1994 Sampling Round
Total/Dissolved Concentration in mg/L Concentration in mg/L
Sampling Vinyl
Sample ID Date As Cr Cu Ph Ni Zn PCB TPH Benzene Chloride
SW-MH 1/24/94 0.006/ ND/ 0.010/ 0.008/ ND/ 0.14/ ND J ND ND ND
0.005 ND ND ND ND 0.12
SW-3 1/24/94 0.007/ 0.0151 0.025/ 0.031/ 0.014/ 0.17/ ND J ND ND 0.0017 ,
ND- ND ND ND ND 0.025
SW-DP 1/24/94 ND/ ND/ ND/ ND/ ND/ 0.17/ ND J ND ND ND
ND ND ND ND ND 0.12
SW-5 1/24/94 0.027/ 0.049/ 0.11/ 0.32/ 0.041/ 0.41/ ND J ND ND 0.023
ND ND ND ND ND ND
Trip Blank 1/24/94 NA NA NA NA NA NA NA NA ND ND
Laboratory 0.0051 0.010/ 0.010/ 0.003/ 0.010/ 0.010/ 0.001 0.2 0.0005 0.0002
Detection Limits 0.005 0.010 0.010 0.003 0.010 0.010
City of Renton 0.005 0.005 0.007 0.001 0.080 0.059 1 100 0.005 0.004
Threshold Levels
Washington State 0.1901 0.1172 0.0073 0.0903 0.0833 0.0523 NA NA NA NA
Water Quality
Standards
J = Sample results are estimated due to poor surrogate and matrix spike recoveries.
ND = Not detected at laboratory detection limit.
SW-MH = Southeast manhole; off-site surface water only.
SW-3 = South Site Interceptor Manhole; both on-site and off-site surface water.
SW-DP = North Site Detention Pond; on-site surface water only.
1 = Based on Total metals concentration.
2 = Based on Total metals concentration for total chromium.
3 = Based on Dissolved metals concentration.
SW194RPG.LR•Tbl 1
.m
u
HA. RTCROWSEF? HartCrowser,Inc.
1910 Fairview Avenue East
Seattle,Washington 98102
FAX 206.328.5581
Earth and Environmental Technologies 206.324.9530
J-1639-27
March 8, 1994
Mr. Robert K. Butler, P.E.
PACCAR Inc.
P.O. Box 1518
Bellevue, Washington 98009
Re: January 1994 Surface Water Quality Monitoring Results
Kenworth Truck Plant Operation and South Site Remediation Activities
PACCAR, Renton Site
Dear Mr. Butler:
This letter report presents the results of monthly surface water sampling conducted during
ongoing site operation and remediation activities at the PACCAR Renton Site. Samples
were collected on January 24, 1994. Final analytical results were received by Hart
Crowser on February 14, 1994. Sampling and analysis were conducted in accordance
with Hart Crowser's Surface Water Quality Monitoring Program, as approved and
revised by the City of Renton Storm and Waste Water Division on September 19, 1991.
SUNEVIARY OF FINDINGS
► TPH, PCBs, and benzene were not detected in any of the surface water samples;
► Surface water sample collected from SW-3, representing the point of compliance for
surface waters discharged from PACCAR, had concentrations of dissolved metals
(copper, lead, nickel, and zinc), and total metals (arsenic and chromium) below the
Washington State Water Quality Standards (State Standards). Vinyl chloride was not
detected in this surface water sample;
► In general, the on-site surface water sample collected from location SW-5 had higher
concentrations of total metals and vinyl chloride than other on-site (detention pond),
Seattle - Tacoma - Richland - Anchorage • Portland - San Francisco - Long Beach
ArN
PACCAR Inc J-1639-27
March 8, 1994 Page 2
off-site, or combined surface water samples. Dissolved metals were not detected in
this sample;
► Total and dissolved zinc were the only constituents detected in the on-site surface
water sample from the detention pond. Concentrations were above the City of Renton
Threshold Levels and State Standards; and
► Total and dissolved concentrations of arsenic and zinc were detected in the off-site
surface waters above the City of Renton Threshold Levels. Although the arsenic
concentrations were below the State Standards, both concentrations for zinc exceeded
the State Standards. Total concentrations of copper and lead exceeded the City of
Renton Threshold Levels.
SURFACE WATER SAMPLING LOCATIONS
Surface water sampling was conducted at four on-site locations as shown on Figure 1.
These locations and their descriptions are given below.
► SW-MH Surface water generated completely off site and entering the PACCAR
storm sewer system at the southeast corner of the site was sampled at the
manhole at this location. The surface water stream had a slight sheen and
hydrocarbon odor, low turbidity, and was approximately 2 feet deep.
Surface water flow through the pipe was low at the time of sampling.
► SW-3 (Combined surface water) Surface water generated on site (erosion control
ponds and ditches, and E/W Interceptor) and off site (Houser Way Bypass)
was sampled at the South Site Interceptor Manhole, at Station 22+06. The
surface water stream had no noticeable sheen, no noticeable hydrocarbon
odor, slight turbidity, and was approximately 2.5 feet deep. The surface
water flow through the pipe was low at the time of sampling.
► SW-DP (Formerly SW-EC2) Surface water generated completely on site and
collected in a detention pond in the north half of the PACCAR site was
sampled at the outlet channel. The surface water had slight turbidity, no
sheen or hydrocarbon odor, and was approximately 2 feet deep. Surface
water was flowing rapidly over the weir into a 30-inch pipe at the time of
sampling.
ALAF
PACCAR Inc J-1639-27
March 8, 1994 Page 3
► SW-5 Surface water generated completely on the south site was sampled at this
location. The surface water was light brown, had a slight sheen and
moderate hydrocarbon odor, high turbidity, and was approximately 2 feet
deep. There was a thin organic film on the surface. Surface water flow
was very low and was not flowing over the oil boom at the time of
sampling.
Chemical concentrations from sample location SW-MH (off-site storm waters) will be
regarded as background or baseline levels, and used in comparison to water quality of on-
site PACCAR-generated waters. The Cleanup Action Plan for the PACCAR site
identifies the point of compliance as that point where surface waters from the PACCAR
site are discharged across the site boundary; location SW-3 is regarded as the point of
compliance. As readings at SW-5 were higher than background readings at SW-MH,
PACCAR has initiated actions to trace the drainage network on the south half of the
property and to correct any major faults that would allow infiltration of contaminants into
the storm water drainage system.
SURFACE WATER SAMPLING ANALYSES
We collected water samples at locations SW-MH, SW-3, SW-DP, and SW-5 on
January 24, 1994. The water samples were analyzed by the Hart Crowser Chemistry
Laboratory for TPH by EPA Method 8015 Modified. The samples were analyzed by
Analytical Technologies, Inc. (ATI), for the following constituents:
► Chromium, copper, nickel, and zinc (EPA Method 6010, ICAP) (Dissolved and
Total);
► Arsenic (EPA Method 7060, AA/GF) (Dissolved and Total);
► Lead (EPA Method 7421, AA/GF) (Dissolved and Total);
► Polychlorinated Biphenyls (EPA Method 8080, PCBs only);
► Benzene (EPA Method 8020); and
► Vinyl chloride (EPA Method 8010).
RESULTS
Table 1 summarizes the analytical results for the January 1994 surface water sampling
round. Note that results for both total and dissolved metals analysis are presented.
f/
PACCAR Inc J-1639-27
March 8, 1994 Page 4
In general, the on-site surface water sample collected from location SW-5 had higher
concentrations of total metals and vinyl chloride than on-site (detention pond), off-site, or
combined surface water samples. However, dissolved metals were not detected in this
on-site surface water sample.
Total and dissolved concentrations of zinc were the only constituents detected in the on-
site surface water sample from the detention pond (SW-DP); both concentrations were
above the City of Renton Threshold Levels and the State Standards.
The off-site surface water sample had concentrations of total and dissolved arsenic and
zinc above the City of Renton Threshold Levels. Although the arsenic concentrations
were below the State Standards, both concentrations for zinc exceeded the State
Standards. Total concentrations of copper and lead exceeded the City of Renton
Threshold Levels; dissolved copper and lead were not detected.
TPH, PCBs, and benzene were not detected in any of the surface water samples. Vinyl
chloride was detected in two samples, SW-3 and SW-5. The on-site surface water
sample (SW-5) had vinyl chloride detected at 0.023 mg/L, above the City of Renton
Threshold Level of 0.004 mg/L. However, the combined surface water sample (SW-3),
collected downstream from SW-5, had vinyl chloride detected at 0.0017 mg/L, below the
City of Renton Threshold Level.
Concentrations of total metals (arsenic, chromium, copper, lead, and zinc) in the
combined surface water sample (SW-3) were above the City of Renton Threshold Levels.
However, the surface water sample collected from SW-3, had concentrations of dissolved
metals (copper, lead, nickel, and zinc), and total metals (arsenic and chromium) that were
below the State Standards.
LEMTATIONS
Work for this project was performed, and this letter report prepared, in accordance with
generally accepted professional practices for the nature and conditions of the work
completed in the same or similar localities at the time the work was performed. It is
intended for the exclusive use of PACCAR Inc. for the specific application to the
referenced property. No other warranty, express or implied, is made.
tr
L�
PACCAR Inc J-1639-27
March 8, 1994 Page 5
Any questions regarding our work and this letter report, the presentation of the
information, and the interpretation of the data are welcome and should be referred to the
undersigned.
We trust this letter meets your needs. Please call if you have any further questions.
Sincerely,
IOWSER, INC. / ,G�/0. KLEPPE, P.E. MARY CATHERINE KILEY
Principal Project Environmental Chemist
AP. H E
Staff Environmental Scientist
MCK/LPH
SURF0194.LR
Attachments:
Table 1 - Analytical Results of Surface Water Monitoring
January 1994 Sampling Round
Figure 1 - Surface Water Sampling Location Plan
January 1994 Sampling Round
cc: (w/Attachments)
Bob Butler, PACCAR (2)
Claus Hackenberger, PACCAR
James Leonard, PACCAR
Ron Straka, City of Renton (2)
David South, Washington State Dept of Ecology (3)
Table 1 - Analytical Results of Surface Water Monitoring
January 1994 Sampling Round
Total/Dissolved Concentration in mg/L Concentration in mg/L
Sampling Vinyl
Sample ID Date As Cr CuJ03
Ni Zn PCB TPH Benzene Chloride
SW-MH 1/24/94 0.006/ ND/ 0.010/ ND/ 0.14/ ND J ND ND ND
0.005 ND NDND 0.12
SW-3 1/24/94 0.007/ 0.015/ 0.025/ 0.014/ 0.17/ ND J ND NDND ND ND ND 0.025
SW-DP 1/24/94 ND/ ND/ ND/ ND/ ND/ 0.17/ ND J ND ND ND
ND ND ND ND ND 0.12
SW-5 1/24/94 0.027/ 0.049/ 0.11/ 0.32/ 0.041/ 0.41/ ND J ND ND 0.023
ND ND ND ND ND ND
Trip Blank 1/24/94 NA NA NA NA NA NA NA NA ND ND
Laboratory 0.005/ 0.010/ 0.010/ 0.003/ 0.010/ 0.010/ 0.001 0.2 0.0005 0.0002
Detection Limits 0.005 0.010 0.010 0.003 0.010 0.010
City of Renton 0.005 0.005 0.007 0.001 0.080 0.059 1 100 0.005 0.004
Threshold Levels
Washington State 0.1901 0.1172 0.007' 0.090' 0.083' 0.052' NA NA NA NA •
Water Quality
Standards
J = Sample results are estimated due to poor surrogate and matrix spike recoveries.
ND = Not detected at laboratory detection limit. 311yl 9`/
SW-MH = Southeast manhole; off-site surface water only.
SW-3 = South Site Interceptor Manhole; both on-site and off-site surface water.
SW-DP = North Site Detention Pond; on-site surface water only.
1 = Based on Total metals concentration.
2 = Based on Total metals concentration for total chromium.
3 = Based on Dissolved metals concentration.
SURF0144.LR -Tbl I
` 4 * 0 0 •
Surface Water Sampling Location Plan - January 1994 Sampling Round
U
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12 36 Diameter RCP Storm Sewer Line
--� — SW-MH
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1991 Storm Sewer Addition
-- ` \ . — ' . — ' . — . — ' �— Flow and Direction
❑ —�'a a Off—Site Storm Sewer
Foundry Building Flow and Direction
O
13
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--------- ---------jam -- -------------- ---- --------- -- - - Predemolition Storm Drain
a Garden Avenue North Flow and Direction
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Hart
HA. RTCROWSER Crowser Inc.
FairviewAvenue East
Seattle,Washington 98102
FAX206.328.5587
Earth and Environmental Technologies 206.324.9530
gp, ........................ Mg
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X
05Y.
To: Washington Department of Ec(Fb) T a�]
te March 9, 1994
3190 - 160th Avenue SE -
Bellevue, Washington 98008-54,5 Db No.: 1639-27
A ttn: David South, P.E. MAR 101994
Re: PACCAR Renton Site CITY OF RENTON
Engineering Dept.
We are sending the following items:
. .........................
..........
..............
z: X
3/8/94 3 January 1994 Surface Water Quality
Monitoring Results
Kenworth Truck Plant Operation and
South Site Remediation Activitities
PACCAR, Renton Site
These are transmitted:
XFor your 1:1 For action 0 For review C3 For your 0 As requested
information specified below and comment use
x.. . .............. . . .........
.. .. .. ... :..... ......................
..
:. : ............'........................... .... ................
.. ....
........... .... ... .. ... ... :.:: ....'. ..... .. ... ... ... X....
....
. .... . .
. . ........ .. . X.. . .... .
By: M. Catherine Kiley
cc: Ron Straka, City of Renton (2) Title: Project Environmental Chemist
Bob Butler, PACCAR, Bellevue (2)
James Leonard, PACCAR, Bellevue (1)
Claus Hackenberger, PACCAR, Renton (1)
163927\SURFVrrR.L0T
Seattle - Tacoma - Richland - Anchorage Portland - San Francisco - Long8each
AN
CROWSER Hart Dowser,Inc.
1910 Fairview Avenue East
Seattle,Washington 98102
D FAX 206.32 . 581
530
Earth and Environmental Technologies 206.324.9
MAR 1 1993
J-1639-16
CITY OF RENTON
Engineering Dept.
February 25, 1993
Mr. Richard Anderson
Utility Systems Manager
City of Renton
200 Mill Avenue South
Renton, WA 98055
Re: PACCAR Renton Facility
Notification of Sampling Activities
Dear Mr. Anderson:
This letter is advance notification of sampling activities. Groundwater sampling is
scheduled for the week of Monday, March 8, 1993. Surface water sampling is
scheduled for the next rainstorm which yields sufficient surface water for sampling.
We will notify you by telephone on the day we plan to sample surface water.
Please feel free to call if you have any questions.
Sincerely,
HART CROWSER, INC.
JOHN T. FINN, P.E.
Associate
nolify6.1tr
cc: Robert Butler, PACCAR
David South, Washington State Department of Ecology (3)
Seattle Tacoma • Richland - Anchorage • Portland • San Francisco • Long Beach
AM
.ur
HA. SEER Hart Dowser,Inc.
1910 Fairview Avenue fast
Seattle,Washington 98102
FAX 206.328.5581
Earth and Environmental Technologies
206.324.9530
J-1639-27
January 6, 1993
Mr. Robert K. Butler, P.E.
PACCAR Inc.
P.O. Box 1518
Bellevue, Washington 98009
Re: December 1992 Surface Water Quality Monitoring Results
Kenworth Truck Plant Construction and South Site Remediation Activities
PACCAR, Renton Site
Dear Mr. Butler:
This letter report presents the results of monthly storm water sampling conducted
during ongoing site construction and remediation activities at the PACCAR Renton
Site.
No surface water samples were collected during December 1992 as there was
insufficient rainfall. As you recall, there are stringent precipitation requirements for
surface water sampling. Surface water samples will be collected for January 1993
provided the rainfall requirements are met.
Seattle - Tacoma • Richland • Anchorage - Portland - San Francisco - Long Beach
Arm
PACCAR Inc. J-1639-27
January 6, 1993 Page 2
We trust this letter meets your needs. Please call if you have any further questions.
Sincerely,
HART CROWSER, INC.
T
410t T. FINN MARY CATHERINE IC LEY
Associate Sr Staff Environmental Chemist
MCIGjr
SUU129ILR
cc:
Robert Butler, PACCAR (2)
Claus Hackenberger, PACCAR
Randall Parsons, City of Renton
Jim Chandler, City of Renton
David South, Washington State Dept of Ecology (3)
Ai 6- FY/Z
• • �IGOr—
Arm
CROWSER Hart Dowser,Inc.
HA. RT1910 Fairview Avenue East
Seattle,Washington 98102
FAX 206.328.5581
206.324.9530
Earth and Environmental Technologies
J-1639-27
November 11, 1992 - .
Mr. Robert K. Butler P.E. I1'•:
PACCAR Inc. ` f pV 1 G 1992
P.O. Box 1518
Bellevue, Washington 98009 CITY OF RENTON
Engineering Dept•
Re: October 1992 Surface Water Quality Monitoring Results
Kenworth Truck Plant Construction and South Site Remediation Activities
PACCAR, Renton Site
Dear Mr. Butler:
This letter report presents the results of monthly surface water sampling conducted
during ongoing site construction and remediation activities at the PACCAR Renton
Site. Samples were collected on October 19, 1992. Final analytical results were
received by Hart Crowser on November 9, 1992. Sampling and analysis were
conducted in accordance with Hart Crowser's Surface Water Quality Monitoring
Program, as approved and revised by Randall Parsons of the City of Renton Storm
and Waste Water Division, September 19, 1991.
SUMMARY OF FINDINGS
► PCBs, TPH, benzene, and vinyl chloride were not detected in any of the surface
waters;
► In general, on-site surface waters had higher concentrations of the chemicals of
concern than the off-site surface waters with the exception of zinc;
Seattle • Tacoma • Richland • Anchorage • Portland • San Francisco • Long Beach
A
PACCAR Inc. J-1639-27
November 11, 1992 Page 2
► Off-site surface waters had the highest concentrations of zinc;
► Concentrations of zinc in the off-site, on-site, and combined surface waters
exceeded the City of Renton Threshold level;
► Only lead and zinc were detected in the off-site surface waters;
► Arsenic, chromium, copper, lead, and nickel concentrations in the combined
surface waters (off- and on-site waters) were approximately equal to the
concentrations in the on-site waters; and
► On-site and combined surface waters had concentrations of arsenic, chromium,
copper, lead, and zinc above the City of Renton Threshold limits.
SURFACE WATER SAMPLING LOCATIONS
Surface water sampling was conducted at three on-site locations as shown on
Figure 1. These locations and their descriptions are given below.
► SW-MH Surface water generated completely off site and entering the PACCAR
storm sewer system at the southeast corner of the site was sampled at
the manhole at this location. The surface water stream had no
noticeable sheen or hydrocarbon odor, appeared very turbid, and was
approximately 31/z feet deep. Surface water was flowing very rapidly out
through the pipe and travelling to the north.
► SW-3 Combined surface water generated on site (erosion control ponds and
ditches) and off site (E/W Interceptor and Houser Way Bypass) was
sampled at the South Site Interceptor Manhole, station 22+06. The
surface water stream had no noticeable sheen or hydrocarbon odor,
appeared turbid, and was approximately 3.5 feet deep. The surface
water was flowing rapidly through the pipe.
► SW-DP (Formerly SW-EC2) Surface water generated completely on site and
collected in a detention pond in the north half of the PACCAR site was
/7
PACCAR Inc. J-1639-27
November 11, 1992 Page 3
sampled at the pond spillway. The surface water had no sheen or
hydrocarbon odor, was slightly turbid, and approximately 2.5 feet deep.
Surface water was flowing slowly over the weir into a 30-inch pipe.
Chemical concentrations from sampling location SW-MH (off-site storm waters) will
be regarded as background or baseline levels, and used in comparison to water
quality of on-site PACCAR-generated waters.
SURFACE WATER SAMPLING ANALYSES
We collected water samples at locations SW-MH, SW-3, and SW-DP on October 19,
1992. The water samples were analyzed by the Hart Crowser FAST Laboratory for
TPH by EPA Method 8015 Modified.
The samples were also analyzed by Analytical Technologies, Inc. (ATI), for the
following constituents:
► Chromium, copper, nickel, and zinc (EPA Method 6010, ICAP);
► Arsenic (EPA Method 7060, AA/GF);
► Lead (EPA Method 7421, AA/GF);
► Polychlorinated Biphenyls (EPA Method 8080, PCBs only);
► Benzene (EPA Method 8020); and
► Vinyl chloride (EPA Method 8010).
Final analytical results were received by Hart Crowser on November 9, 1992.
Pursuant to conversations with Randall Parsons, the results for metals analyses refer
only to the "total' metals fraction.
RESULTS
Table 1 summarizes the analytical results for the October 1992 surface water sampling
round.
Arm
PACCAR Inc. J-1639-27
November 11, 1992 Page 4
Benzene, vinyl chloride, TPH, and PCBs were not detected in any of the storm water
samples.
Concentrations of arsenic, chromium, copper, lead, and zinc in the on-site and
combined surface waters exceeded the City of Renton Threshold Levels.
Off-site surface waters, considered to be background, had the highest concentrations
of zinc (0.55 mg/L).
Arsenic, chromium, copper, lead, and nickel concentrations in the combined surface
waters (off- and on-site waters) were approximately equal to the concentrations in the
off-site waters.
LIMITATIONS
Work for this project was performed, and this letter report prepared, in accordance
with generally accepted professional practices for the nature and conditions of the
work completed in the same or similar localities at the time the work was performed.
It is intended for the exclusive use of PACCAR Inc. for the specific application to the
referenced property. No other warranty, express or implied, is made.
Any questions regarding our work and this letter report, the presentation of the
information, and the interpretation of the data are welcome and should be referred to
the undersigned.
Arm
`AF
PACCAR Inc. J-1639-27
November 11, 1992 Page 5
We trust this report meets your needs. Please call if you have any further questions.
Sincerely,
HART CROWSER, INC.
MARY CATHERINE HILEY R OY6 KUROIWA
Sr. Staff Environmental Chemist Project Engineer
fUt".T
JOHN T. FINN, P.E.
Associate
MCK
SURF109ZLR
Attachments:
Table 1 - Analytical Results of Surface Water Monitoring
October 1992 Sampling Round
Figure 1 - Surface Water Sampling Location Plan
October 1992 Sampling Round
cc: (w/Attachments)
Bob Butler, PACCAR (2)
Claus Hackenberger, PACCAR
Randall Parsons, City of Renton
Jim Chandler, City of Renton
David South, Washington State Dept of Ecology (3)
Table 1 - Analytical Results of Surface Water Monitoring
October 1992 Sampling Round
Concentration in mg/L
Sample ID Date As Cr Cu Pb Ni Zn PCB TPH Benzene Vinyl
Chloride
SW-MH 10/19/92 ND ND ND 0.004 ND 0.55 ND ND ND ND
SW-3 10/19/92 0.011 0.02 0.04 0.05 0.02 0.29 ND ND ND ND
SW-DP 10/19/92 0.018 0.04 0.03 0.034 0.02 0.18 ND ND ND ND
Trip blank 10/19/92 NA NA NA NA NA NA NA NA ND ND
Laboratory 0.005 0.010 0.010 0.003 0.010 0.010 0.001 0.4 0.0005 0.0002
Detection
Limits
City of 0.005 0.005 0.007 0.001 0.080 0.059 1 100 0.005 0.004
Renton
Threshold
Levels
SW-MH = Southeast manhole; off-site surface water only.
SW-3 = South Site Interceptor Manhole; both on-site and off-site surface water. .
SW-DP = North Site Detention Pond; on-site surface water only.
Trip blank = Trip blank for sampling round.
ND = Not detected at detection limit.
NA = Not Analyzed.
SURF109LLR Pg 6
-Surface Water Sampling Location Plan - October 1992 Sampling Round
, HOUSER WAY - ^ _
®SW-3 Surface Water Sampling
�w Location and Number
_....
--------
40P Manhole and Cleanout
736' o RCP Storm Sewer Line --,
SW{MH' 1� 1991 Storm Sewer Addition
t ! ` Existing Storm Sewer System
jL
Detention Pond
Kenworth Truck ; j -
- Inlet Catch Plant Facility - _
Channel
1'
PS W-D P
1 71
�
SW-3
0 250 500
Scale in Feet
w Ui
w
wii w, �.
ICL',, F—
d;,¢I iICDj c0
1
Ln
z
Z, Z ArK
HA. RT(/ /fir ,,/Sr
J-1639-27 11192
Figure 1
✓✓Q� /Jvinl H��z 7
AM lo�r�/yZ
Lr
HA. ffCROWSME Hart AvonCrow er,Inc.
1910 Fairview Avenue East
Seattle,Washington 98102
FAX 206.328.5581
206.324.9530
Earth and Environmental Technologies
Q �21-11
J-1639-27 VY�
3 1992
October 21, 1992 CITY OF
RENTON
Engineering Dept.
Mr. Robert K. Butler, P.E.
PACCAR Inc.
P.O. Box 1518
Bellevue, Washington 98009
Re: September 1992 Surface Water Quality Monitoring Results
Kenworth Truck Plant Construction and South Site Remediation Activities
PACCAR, Renton Site
Dear Mr. Butler:
This letter report presents the results of monthly surface water sampling conducted
during ongoing site construction and remediation activities at the PACCAR Renton
Site. Samples were collected on September 24, 1992. Final analytical results were
received by Hart Crowser on October 19, 1992. Sampling and analysis were
conducted in accordance with Hart Crowser's Surface Water Quality Monitoring
Program, as approved and revised by Randall Parsons of the City of Renton Storm
and Waste Water Division, September 19, 1991.
SUMMARY OF FINDINGS
► In general, off-site surface waters had higher concentrations of the chemicals of
concern than either the on-site or combined surface waters with the exception of
zinc in SW-DP;
Seattle - Tacoma - Richland - Anchorage - Portland - San Francisco - Long Beach
AM
PACCAR Inc. J-1639-27
October 21, 1992 Page 2
► PCBs, TPH, benzene, and vinyl chloride were not detected in the on- and off-site
storm waters;
► Concentrations of zinc in the off-site, on-site, and combined surface waters
exceeded the City of Renton Threshold level;
► Arsenic and zinc were detected in the on-site surface waters;
► Chromium, copper, lead, and nickel concentrations in the combined surface waters
(off- and on-site waters) were approximately equal to the concentrations in the
off-site waters; and
► Off-site surface waters had concentrations of arsenic, chromium, copper, lead, and
zinc above the City of Renton Threshold limits.
SURFACE WATER SAMPLING LOCATIONS
Surface water sampling was conducted at three on-site locations as shown on Figure
1. These locations and their descriptions are given below.
► SW-MH Surface water generated completely off site and entering the PACCAR
storm sewer system at the southeast corner of the site was sampled at
the manhole at this location. The surface water stream had no
noticeable sheen or hydrocarbon odor, appeared slightly turbid, and was
approximately 4 feet deep. Surface water was flowing very rapidly out
through the pipe and travelling to the north.
► SW-3 Surface water generated on site (erosion control ponds and ditches) and
off site (E/W Interceptor and Houser Way Bypass) was sampled at the
South Site Interceptor Manhole, at station 22+06. The surface water
stream had no noticeable sheen, was approximately 1 inch deep, and
was flowing very slowly.
/7
as
PACCAR Inc. J-1639-27
October 21, 1992 Page 3
► SW-DP (Formerly SW-EC2) Surface water generated completely on site and
collected in a detention pond in the north half of the PACCAR site was
sampled at the pond spillway. The surface water had no sheen and was
approximately 1 inch deep. Surface water was flowing very slowly out
of the ditch into a 30-inch pipe.
Chemical concentrations from sampling location SW-MH (off-site storm waters) will
be regarded as background or baseline levels, and used in comparison to water
quality of on-site PACCAR-generated waters.
SURFACE WATER SAMPLING ANALYSES
We collected water samples at locations SW-MH, SW-3, and SW-DP on September
24, 1992. The water samples were analyzed by the Hart Crowser FAST Laboratory
for TPH by EPA Method 8015 Modified.
The samples were also analyzed by Analytical Technologies, Inc. (ATI), for the
following constituents:
► Chromium, copper, nickel, and zinc (EPA Method 6010, ICAP);
► Arsenic (EPA Method 7060, AA/GF);
► Lead (EPA Method 7421, AA/GF);
► Polychlorinated Biphenyls (EPA Method 8080, PCBs only);
► Benzene (EPA Method 8020); and
► Vinyl chloride (EPA Method 8010).
Final analytical results were received by Hart Crowser on October 19, 1992. Pursuant
to conversations with Randall Parsons, the results for metals analyses refer only to the
"total" metals fraction.
Arm
Lr
PACCAR Inc. J-1639-27
October 21, 1992 Page 4
RESULTS
Table 1 summarizes the analytical results for the September 1992 surface water
sampling round.
Benzene, vinyl chloride, TPH, and PCBs were not detected in any of the storm water
samples.
Concentrations of arsenic, chromium, copper, lead, and zinc in the off-site surface
waters exceeded the City of Renton Threshold Levels.
Arsenic (0.002 mg/L) and zinc (0.34 mg/L) were detected in the on-site surface waters
(SW-DP); only zinc exceeded the City of Renton Threshold Level of 0.059 mg/L.
Concentrations of zinc in both the off- and on-site surface waters exceeded the City of
Renton Threshold Level.
Off-site surface waters, considered to be background, had the highest concentrations
of arsenic, chromium, copper, and lead (0.013, 0.02, 0.03, and 0.08 mg/L,
respectively).
Chromium, copper, lead, and nickel concentrations in the combined surface waters
(off- and on-site waters) were approximately equal to the concentrations in the off-
site waters.
LIMITATIONS
Work for this project was performed, and this letter report prepared, in accordance
with generally accepted professional practices for the nature and conditions of the
work completed in the same or similar localities at the time the work was performed.
It is intended for the exclusive use of PACCAR Inc. for the specific application to the
referenced property. No other warranty, express or implied, is made.
AM
as
PACCAR Inc. J-1639-27
October 21, 1992 Page 5
Any questions regarding our work and this letter report, the presentation of the
information, and the interpretation of the data are welcome and should be referred to
the undersigned.
We trust this letter meets your needs. Please call if you have any further questions.
Sincerely,
HART CROWSER, INC.
Q�
MARY CATHERINE KILEY ROY ;FROIWA
Sr. Staff Environmental Chemist Sr. Staff Engineer
77�
JOHN T. FINN, P.E.
Associate
MCK
SUUO"2LR
Attachments:
Table 1 - Analytical Results of Surface Water Monitoring
September 1992 Sampling Round
Figure 1 - Surface Water Sampling Location Plan
September 1992 Sampling Round
cc: (w/Attachments)
Bob Butler, PACCAR (2)
Claus Hackenberger, PACCAR
Randall Parsons, City of Renton
Jim Chandler, City of Renton
David South, Washington State Dept of Ecology (3)
Table 1 - Analytical Results of Surface Water Monitoring
September 1992 Sampling Round
Concentration in mg/L
Sample ID Date As Cr Cu Pb Ni Zn PCB TPH Benzene Vinyl
Chloride
SW-MH 9/24/92 0.013 0.02 0.03 0.08 0.01 0.33 ND ND ND ND
SW-3 9/24/92 0.006 0.01 0.02 0.06 0.01 1 0.19 ND ND ND ND
SW-DP 9/24/92 0.002 ND ND ND ND 0.34 ND ND ND ND
Trip blank 9/24/92 NA NA NA NA NA NA NA NA ND ND'
Laboratory 0.005 0.010 0.010 0.003 0.010 0.010 0.001 0.4 0.0005 0.0002
Detection
Limits
City of 0.005 0.005 0.007 0.001 0.080 0.059 1 100 0.005 0.004
Renton
Threshold
Levels
' = Detection limit is 0.001 mg/L. .
NA = Not Analyzed.
ND = Not detected at detection limit.
SW-MH = Southeast manhole; off-site surface water only.
SW-3 = South Site Interceptor Manhole; both on-site and off-site surface water.
SW-DP = North Site Detention Pond; on-site surface water only. x
Trip blank = Trip blank for sampling round.
SUar09nLR-Tbl 1
J M
Surface Water Sampling Location Plan - September 1992 Sampling Round
HOUSER WAY --'�
� (OSW-3 Surface Water Sampling
Location and Number
Manhole and Cleanout
736' o RCP Storm Sewer Line ` / - SW- " r 1991 Storm Sewer Addition
/ ! ` Existing Storm Sewer System
r I
Flj
,• ' --ter-' -_'. •-
l3; Detention Pond
I Kenworth Truck -- i
Inlet Catch Plant Facility -
i Channel t
--------------
b — W—D ' —, ; r— i —
r
- j J i t ❑ i j 1LJ
i ( SW-3
r-
0 250 500
----------------- — _-- Scale in Feet
w_ ,w: - -------- — -- w
w ; w i w: 2
2 -- w ;¢; i-
00 1 ( ti Z
Z' Z t'
_ z u
HA. tTO?OWSr
J-1639-27 10192
Figure- 1
k0N S .
RANG wAs l/F Y
AL/ S ANX I./1ys1- T�7T
H/.I RTCROWSCR R�-5 GL73 Hart Dowser,Inc.
y661 wfi`617 1910 Fairview Avenue East
i Seattle,Washington 98102
T& v C 67 11 1— FAX 206.328.5581
/ 206.324.9530
Earth and Environmental Technologies
J-1639-16
October 1, 1992
Mr. Richard Anderson
Utility Systems Manager
City of Renton
200 Mill Avenue South
Renton, WA 98055
Re: PACCAR Renton Facility OF RErI-f OBI
Notification of Sampling Activities CIS DECK
t
EnginE�ring
Dear Mr. Anderson:
This letter is advance notification of sampling activities. Groundwater sampling is
scheduled for Monday, October 12, 1992. Surface water sampling is scheduled for the
next rainstorm which yields sufficient surface water for sampling. We will notify you
by telephone on the day we plan to sample surface water.
Please feel free to call if you have any questions.
Sincerely,
HART CROWSER, INC.
(? JOHN T. FINN, P.E.
Associate
notify5.►tr
cc: Robert Butler, PACCAR
David South, Washington State Department of Ecology (3)
Seattle • Tacoma - Richland Anchorage - Portland • San Francisco • Long Beach
Arm
HA. Hart Aven er,Inc.
� 1910 Fairview Avenue East
Seattle,Washington 98102
FAX 206.328.5581
Earth and Environmental Technologies ` y�[`fir:, 206.324.9530
4 1992
J-1639-27 CITY OF RE�!TON
Engineering Dept.
September 2, 1992
Mr. Robert K. Butler, P.E.
PACCAR Inc.
P.O. Box 1518
Bellevue, Washington 98009
Re: August 1992 Surface Water Quality Monitoring Results
North Site Grading and Filling Activities
PACCAR, Renton Site
Dear Mr. Butler:
This letter report presents the results of monthly storm water sampling conducted
during ongoing site construction and remediation activities at the PACCAR Renton
Site.
No surface water samples were collected during August as there was insufficient
rainfall. As you recall, there are stringent precipitation requirements for surface
water sampling.
Seattle - Tacoma • Richland • Anchorage • Portland - San Francisco • Long Beach
! 1
PACCAR Inc. J-1639-27
September 2, 1992 Page 2
We trust this letter meets your needs. Please call if you have any further questions.
Sincerely,
HART CROWSER, INC.
MARY CATHERINE KILEY �' �n
ES H. KLE 4 E, P.E.
Senior Staff Environmental Chemist or Associate
MCKjr
SURF0892LR
cc: Bob Butler, PACCAR (2)
Claus Hackenberger, PACCAR
Randall Parsons, City of Renton
Jim Chandler, City of Renton
David South, Washington State Dept of Ecology (3)
/7
HA. RTCROWSCRart ef,root
� 1910 FairviewFaiAvenue
iew Avenue East
Seattle,Wasnington 98102
FAX 206,328.5581
Earth and Environmental Technologies 206.324.9530
t _t
n,.:
i
J-1639-23
August 5, 1992
Mr. Robert K. Butler, P.E.
PACCAR Inc.
P.O. Box 1518
Bellevue, Washington 98009
Re: July 1992 Surface Water Quality Monitoring Results
Kenworth Truck Plant Construction and Soils Solidification
PACCAR, Renton Site
Dear Mr. Butler:
This letter summarizes the activities associated with monthly surface water sampling
at the PACCAR Renton Site.
No surface water samples were collected during July because of insufficient rainfall.
As you recall, there are stringent precipitation requirements for surface water
sampling.
Seattle - Tacoma - Ri,^and - anchorage - Portland - San Francisco - Long Beach
Arm
as
PACCAR Inc. J-1639-23
August 5, 1992 Page 2
We trust this letter meets your needs. Please call if you have any further questions.
Sincerely,
HART CROWSER, INC.
MARY CATHERINE KILEY ROY KUROIWA
Sr. Staff Environmental Chemist Sr. Staff Engineer
pt'W4 T
JOHN T. FINN
Associate
MCK
SURF0792LR
cc: Bob Butler, PACCAR (2)
Claus Hackenberger, PACCAR
Randall Parsons, City of Renton
Jim Chandler, City of Renton
David South, Washington State Dept of Ecology (3)
AM
HA. RTCRoWs I _ Hart er,Inc.
�`� , 7910Fairview AvenAvenueEast
IDSeattle,Washington 98102
Olt, ,1 FAX 206.328.5581
Earth and Environmental Technoiogies = 206.324.9530
JUL 10 1992
CITY OF RENTON
J-1639-23 ,Engineering Dept.
July 8, 1992
Mr. Robert K. Butler, P.E.
PACCAR Inc.
P.O. Box 1518
Bellevue, Washington 98009
Re: June 1992 Surface Water Quality Monitoring Results
North Site Grading and Filling Activities
PACCAR, Renton Site
Dear Mr. Butler:
This letter report presents the results of monthly surface water sampling conducted
during ongoing site construction and remediation activities at the PACCAR Renton
Site. Samples were collected on June 12, 1992. Final analytical results were received
by Hart Crowser on July 8, 1992. Sampling and analysis were conducted in
accordance with Hart Crowser's Surface Water Quality Monitoring Program, as
approved and revised by Randall Parsons of the City of Renton Storm and Waste
Water Division, September 19, 1991.
SUMMARY OF FINDINGS
► In general, off-site surface waters had higher concentrations of the chemicals of
concern than the on-site or combined surface waters with the exception of
benzene and vinyl chloride in SW-EC2.
Seattle - Tacoma - Richland - Anchorage - Portland - San Francisco - Long Beach
t
Arw
PACCAR Inc. J-1639-23
July 8, 1992 Page 2
SURFACE WATER SAMPLING LOCATIONS
Surface water sampling was conducted at three on-site locations as shown on
Figure 1. These locations and brief descriptions are given below.
► SW-MH Surface water generated completely off site entering the PACCAR
storm sewer system at the southeast corner of the site was sampled at
the manhole at this location. The surface water stream had a
gray/brown color, slightly turbid, was approximately 1/2 inch deep, and
was flowing. Surface water was flowing out through the pipe and exiting
to the north.
► SW-3 Surface water generated on site (erosion control ponds and ditches) and
off site (E/W Interceptor and Houser Way Bypass) was sampled at the
South Site Interceptor Manhole, at station 22+06. The surface water
stream had a foamy surface layer, slightly turbid, approximately 1 inch
deep, and was not flowing.
► SW-EC2 Surface water generated completely on site and collected in an erosion
control pond in the north half of the PACCAR site was sampled at a
point within the pond near the spillway. The surface water had no
sheen, slight turbidity, was approximately 1 inch deep, and was not
flowing. Surface water was flowing out of the ditch into the 30 inch
pipe.
Chemical concentrations from sampling location SW-MH (off-site storm waters) will
be regarded as background or baseline levels, and used in comparison to water
quality of on-site PACCAR-generated waters.
SURFACE WATER SAMPLING ANALYSES
We collected water samples at locations SW-MH, SW-3, and SW-EC2 on June 12,
1992. The water samples were analyzed by the Hart Crowser FAST Laboratory for
TPH by EPA Method 8015 Modified.
Ar/
Lr
PACCAR Inc. J-1639-23
July 8, 1992 Page 3
The samples were also analyzed by Analytical Technologies, Inc. (ATI), for the
following constituents:
► Chromium, copper, nickel, lead, and zinc (EPA Method 6010, ICAP);
► Arsenic (EPA Method 7060, AA/GF);
► Polychlorinated Biphenyls (EPA Method 8080, PCBs only);
► Benzene (EPA Method 8020); and
► Vinyl chloride (EPA Method 8010).
Final analytical results were received by Hart Crowser on July 8, 1992. Pursuant to
conversations with Randall Parsons, the results for metals analyses refer only to the
"total" metals fraction.
RESULTS
Table 1 summarizes the analytical results for the June 1992 surface water sampling
round.
Benzene and vinyl chloride were detected only in on-site surface waters (SW-EC2) at
0.0006 mg/L, well below the City of Renton Threshold Level of 0.004 mg/L.
The off-site surface water sampling location SW-MH had the highest concentrations
of arsenic, chromium, copper, lead, nickel, zinc, and TPH (0.025, 0.027, 0.090, 0.043,
0.021, 0.61, and 0.90 mg/I, respectively).
PCBs were not detected in any of the storm water samples.
LIMITATIONS
Work for this project was performed, and this letter report prepared, in accordance
with generally accepted professional practices for the nature and conditions of the
work completed in the same or similar localities at the time the work was performed.
It is intended for the exclusive use of PACCAR Inc. for the specific application to the
referenced property. No other warranty, express or implied, is made.
Ar'
PACCAR Inc. J-1639-23
July 8, 1992 Page 4
Any questions regarding our work and this letter report, the presentation of the
information, and the interpretation of the data are welcome and should be referred to
the undersigned.
We trust this letter meets your needs. Please call if you have any further questions.
Sincerely,
HART CROWSER, INC.
Y�CaATHELRINE KI EY RO K. KUROIWA
Sr. Staff Environmental Chemist Sr. Staff Engineer
PUI 7�—;4�
JOHN T. FINN, P.E.
Associate
RKK/MCKjr
SURF0692LR
Attachments:
Table 1 - Analytical Results of Surface Water Monitoring
June 1992 Sampling Round
Figure 1 - Surface Water Sampling Location Plan
cc: (w/Attachments)
Bob Butler, PACCAR (2)
Claus Hackenberger, PACCAR
Randall Parsons, City of Renton
Ron Nelson, City of Renton
David South, Washington State Dept of Ecology (3)
Table 1 - Analytical Results of Surface Water Monitoring
June 1"2 Sampling Round
Concentration in mg/L
Sample ID Date As Cr Cu Pb Ni Zn PCB TPH Benzene Vinyl
Chloride
SW-MH 6/12/92 0.025 0.027 0.090 0.043 0.021 0.61 ND 0.90 ND ND
SW-3 6/12/92 0.0059 ND 0.026 0.0054 ND 0.20 ND ND ND ND
SW-EC2 6/12/92 0.010 ND 0.012 0.0059 ND 0.11 ND ND 0.0006 0.0006
Trip blank 6/12/92 NA NA NA NA NA NA NA NA ND ND
Laboratory 0.005 0.010 0.010 0.003 0.010 0.010 0.001 0.20 0.0005 0.0002
Detection
Limits
City of 0.005 0.005 0.007 0.001 0.080 0.059 1 100 0.005 0.004
Renton
Threshold
Levels
SW-MH = Southeast manhole; off-site surface water only. .
SW-3 = South Site Interceptor Manhole; both on-site and off-site surface water.
SW-EC2 = North Site Erosion Control Pond No. 2; on-site surface water only.
Trip blank = Trip blank for sampling round.
ND = Not detected at detection limit.
NA = Not Analyzed.
J = Estimated result due to surrogate out of control limits.
suRF06nLx Pa 5
Surface Water Sampling Location Plan
PACCAR Renton Sewer System
'V
- --7 I a
MIOM ME ME ME Milan ME EM EM Mine
� I
/ O°
\7RCP Storm Sewer Line ` ®SW-3Surface Water Sampling
SW-MH
Location and Number
Manhole
and Cleano ut
I 1991 Storm Sewer Addition
Existing Storm Sewer System
I
Abandoned Storm Sewer
------------------------------
Ij � —
RCP Storm
Sewer Line
I
I
' SW-3
Draina e i i
I
Erosion Control Pond No.2 ' -----
%with SpillwayM4
i
c
SW-EC2
*
------L--------- __lam
i
0 250 500
RCP Storm Sewer Line
I ( �
Scale in Feet
R
* Notes: 1. Erosion control pond No.2 is aboveground. V
2. Sample will be from pond or pond spillway. w �
3. Pond does not connect to manhole.
J-1639-23 7/92
Figure 1
!71v (2— Fyn
t
v
A
MR
HA.
w� O _ Hart CrowAvenue
er,;nc.
�//��/ 1970 FairviewAvenue East
Seattle,Washington 18102
DFAX 206.328.5531
Earth and Environmental Technologies II�^ 206.324,9530
J-1639-23
JUN 11 1992
June 10, 1992
CITY OF RENTON
Mr. Robert K. Butler, P.E. Engineering Dept.
PACCAR Inc.
P.O. Box 1518
Bellevue, Washington 98009
Re: April 1992 Surface Water Quality Monitoring Results
North Site Grading and Filling Activities
PACCAR, Renton Site
Dear Mr. Butler:
This letter report presents the results of monthly surface water sampling conducted
during ongoing site construction and remediation activities at the PACCAR Renton
Site. Samples were collected on April 17, 1992. Final analytical results were received
by Hart Crowser on June 5, 1992. Sampling and analysis were conducted in
accordance with Hart Crowser's Surface Water Quality Monitoring Program, as
approved and revised by Randall Parsons of the City of Renton Storm and Waste
Water Division, September 19, 1991.
SUMMARY OF FINDINGS
► In general, on-site surface water had higher concentrations of the chemicals of
concern than the off-site or combined surface water, with the exception of zinc in
sample SW-3;
Seattle - Tacoma Richland • Anchorage - Portland • San Francisco - Long Beach
i •
.r.
PACCAR Inc. J-1639-23
June 10, 1992 Page 2
► Vinyl chloride was only detected in the combined off- and on-site surface water
sample SW-3, but below the City of Renton Threshold level;
► Lead was observed only in the on-site surface water sample SW-EC2;
► Arsenic and nickel were only detected in the on-site surface water sample
SW-EC2 and combined surface water sample SW-3; Arsenic was detected above
the City of Renton Threshold Level while nickel was detected below the
Threshold Level;
► Low levels of chromium, copper, and zinc were detected in all surface water
samples; and
► PCBs, TPH, and benzene were not detected in the on-site or off-site surface
water.
SURFACE WATER SAMPLING LOCATIONS
Surface water sampling was conducted at three on-site locations as shown on
Figure 1. Brief descriptions of the sampling at these locations are given below.
► SW-MH Surface water generated completely off site and entering the PACCAR
storm sewer system at the southeast corner of the site was sampled at
the manhole at this location. The surface water stream had a
noticeable sheen, a strong hydrocarbon odor, and was approximately
1 inch deep. Surface water was flowing out through the pipe and
exiting to the north.
► SW-3 Surface water generated on site (erosion control ponds and ditches) and
off site (E/W Interceptor and Houser Way Bypass) was sampled at the
South Site Interceptor Manhole at Station 22+06. The surface water
stream had a noticeable sheen, was approximately 1 inch deep, and was
flowing.
/N
as
PACCAR Inc. J-1639-23
June 10, 1992 Page 3
► SW-EC2 Surface water generated completely on site and collected in an erosion
control pond in the north half of the PACCAR site was sampled at a
point within the pond near the spillway. The surface water had no
sheen, slight to moderate turbidity, and was approximately 1 inch deep.
Surface water was flowing out of the ditch into the 30-inch pipe.
Chemical concentrations from sampling location SW-MH (off-site surface water) will
be regarded as background or baseline levels and used in comparison to water quality
of on-site PACCAR-generated waters.
SURFACE WATER SAMPLING ANALYSES
We collected water samples at locations SW-MH, SW-3, and SW-EC2 on April 17,
1992. The water samples were analyzed by the Hart Crowser FAST Laboratory for
TPH by EPA Method 8015 Modified.
The samples were also analyzed by Analytical Technologies, Inc. (ATI), for the
following constituents:
► Chromium, copper, nickel, lead, and zinc (EPA Method 6010, ICAP);
► Arsenic (EPA Method 7060, AA/GF);
► Polychlorinated Biphenyls (EPA Method 8080, PCBs only);
► Benzene (EPA Method 8020); and
► Vinyl chloride (EPA Method 8010).
Final analytical results were received by Hart Crowser on June 5, 1992. Pursuant to
conversations with Randall Parsons, the results for metals analyses refer only to the
"total" metals fraction.
Arm
PACCAR Inc. J-1639-23
June 10, 1992 Page 4
RESULTS
Table 1 summarizes the analytical results for the April 1992 surface water sampling
round.
Benzene, TPH, and PCBs were not detected in any of the surface water samples.
Vinyl chloride was observed in combined (on- and off-site) surface water sample
SW-3 at 0.0014 mg/L, well below the City of Renton Threshold Level of 0.004 mg/L.
Lead was detected only in on-site surface water sample SW-EC2 at 0.033 mg/L,
slightly above the City of Renton Threshold Level of 0.005 mg/L.
Surface water sample SW-EC2 had the highest concentrations of arsenic, chromium,
copper, lead, and nickel (0.031, 0.034, 0.058, 0.033, and 0.031 mg/L, respectively).
Arsenic and : ckel were detected in on-site surface water sample SW-EC2 and the
combined surface water sample SW-3. Arsenic concentrations ranged from 0.006 to
0.031 mg/L, slightly above the City of Renton Threshold Level of 0.005 mg/L.
Concentrations of nickel ranged from 0.016 to 0.031 mg/L, well below the City of
Renton Threshold Level of 0.080 mg/L.
Off-site surface waters, considered to be background, had low concentrations of
chromium, copper, and zinc detected above the City of Renton Threshold Levels.
LIMITATIONS
Work for this project was performed, and this letter report prepared, in accordance
with generally accepted professional practices for the nature and conditions of the
work compl--ted in the same or similar localities at the time the work was performed.
It is intended for the exclusive use of PACCAR Inc. for the specific application to the
referenced '.)roperty. No other warranty, express or implied, is made.
tv
Lr
PACCAR Inc. J-1639-23
June 10, 1992 Page 5
Any questions regarding our work and this letter report, the presentation of the
information, and the interpretation of the data are welcome and should be referred to
the undersigned.
We trust this letter meets your needs. Please call if you have any further questions.
Sincerely,
HART CRO WSER, INC.
MARY CATHERINE KII.EY ROCK. KUROIWA
Sr. Staff Environmental Chemist Sr. Staff Engineer
7�
JOHN T. FINN, P.E.
Associate
MCY4r
0492SURFJ-R
Attachments:
Table 1 - Analytical Results of Surface Water Monitoring
April 1992 Sampling Round
Figure 1 - Surface Water Sampling Location Plan
cc: (w/Attachments)
Bob Butler, PACCAR (2)
Claus Hackenberger, PACCAR
Randall Parsons, City of Renton
Ron Nelson, City of Renton
Davie. South, Washington State Dept of Ecology (3)
Table 1 - Analytical Results of Surface Water Monitoring
April 1992 Sampling Round
Concentration in mg/L
Camnln in Date AS Cr Cu Pb Ni Zn PCB TPH Benzene Vinyl
Chloride
SW-MH 4/17/92 ND 0.011 0.015 ND ND 0.094 ND J ND ND ND
SW-3 4/17/92 0.006 0.021 0.034 ND 0.016 0.10 ND J ND ND 0.0014
SW-EC2 4/17/92 0.031 0.034 0.058 0.033 0.031 0.090 ND J ND ND ND
Trip blank 4/17/92 NA NA NA NA NA NA NA NA ND ND
Laboratory 0.005 0.010 0.010 0.030 0.010 0.010 0.001 1 0.0005 0.0002
Detection
Limits
City of 0.005 0.005 0.007 0.001 0.080 0.059 1 100 0.005 0.0(>4
Renton
Threshold
Levels
SW-MH = Southeast manhole; off-site surface water only. •
SW-3 = South Site Interceptor Manhole; both on-site and off-site surface water.
SW-EC2 = North Site Erosion Control Pond No. 2; on-site surface water only.
Trip blank = Trip blank for sampling round.
ND = Not detected at detection limit.
NA = Not Analyzed.
J = Estimated result due to surrogate out of control limits.
x
0492SURF.LR-IN 1
� n
w :;
. 0 �!
Surface Water Sampling Location Plan
PACCAR Renton Sewer System
-7
jl U L
♦ - O j \ _
n �S1A/-4 Ci irfarP Wn ar Camnlinn
I RCP Storm Sewer Line
SW—H Location and Number
l �
Manhole and Cleanout
,i
j IM I 1991 Storm Sewer Addition
' Existing Storm Sewer System
L •••■ � Abandoned Storm Sewer
-------------------------------
RCP Storm i—
Sewer Line 13
i C
SW-3
DrainageDilch
i ---
Erosion Control Pond No. --------
%with Spillway
I
=4
i
wool-
SW—ECiI�-
LiI--- �---�- -------------------�-- ------ ------------ -----------�-- ----------- -- -------------- -- -- ---
-----------------
�—� j �— 0 250 500
RCP Storm Sewer Line i
i I Scale in Feet
III
.m
* Notes: 1. Erosion control pond No.2 is aboveground. ;V
2. Sample will be from pond or pond spillway. WW-R
3. Pond does not connect to manhole.
J-1639-23 6192
Figure 1
41
Arm
f��CROWSEER Hart view Avenue
er,Inc.
Seattle,Washington 98102
FAX 206.328.5581
206.324.9530
Earth and Environmental Techr ologies <r'
S� 11M
7
�F �`N�0
J-1639-23 C 1-1 { pept.
: i�,eE�rin�
June 1,• 1992
Mr. Robert {. Butler, P.E.
PACCAR Inc.
P.O. Box 1518
Bellevue, Washington 98009
Re: May 1992 Surface Water Quality Monitoring Results
North Site Grading and Filling Activities
PACCAR, Renton Site
Dear Mr. Butler:
This letter report presents the results of monthly storm water sampling conducted during
ongoing site -.onstruction and remediation activities at the PACCAR Renton Site.
No surface water samples were collected during May as there was insufficient rainfall.
As you recall., there are stringent precipitation requirements for surface water sampling.
Surface wate=- samples have been collected for April, and the results will be provided
upon receipt of the certificates of analysis.
`eattle • Tacoma • Richland • Anchorage • Portland • San Francisco • Long Beach
t7
�r
PACCAR Inc. J-1639-23
June 1, 1992 Page 2
We trust the s letter meets your needs. Please call if you have any further questions.
Sincerely,
HART CROWSER, INC.
tA'MERINE KEL Y ROY KUROIWA
Senior Staff Environmental Chemist Senior Staff Environmental Engineer
Z/�'J'OHN T. F]NN
Associate
RKK/JTF/MCK:jr/tm l
SURFMAY.LR
cc: Bob E,utler, PACCAR (2)
Claus Hackenberger, PACCAR
Randall Parsons, City of Renton
Ron Isrelson, City of Renton
David South, Washington State Dept of Ecology (3)
A
ALAF
HA. Hart Dowser,
1910 Fairas
view Avenue East
Seattle,Washington 98102
FAX 206.328.5581
Earth and Environmental reciinologies 206.324.9530
J-1639-23
1
March 23,
1 F.✓
Mr. Robert K. Butler, P.E.
PACCAR Inc.
P.O. Box V;18
Bellevue, Washington 98009
Re: March 1992 Surface Water Quality Monitoring Results
North Site Grading and Filling Activities
PACCAR, Renton Site
Dear Mr. Butler:
This letter report presents the results of monthly surface water sampling conducted
during ongoing site construction and remediation activities at the PACCAR Renton
Site. Samples were collected on March 4, 1992. Final analytical results were received
by Hart Crowser on March 20, 1992. Sampling and analysis were conducted in
accordance with Hart Crowser's Surface Water Quality Monitoring Program, as
approved and revised by Randall Parsons of the City of Renton Storm and Waste
Water Division on September 19, 1991.
SUMMARY OF FINDINGS
► In gener.31, off-site surface waters had higher concentrations of the chemicals of
concern than the on-site surface waters with the exception of vinyl chloride in
SW-3;
Seattle • Tacoma - Richland • Anchorage - Portland - San Francisco • Long Beach
• •
Arm
`r
PACCAR Inc. J-1639-23
March 23, 1992 Page 2
► Vinyl chloride was only detected in the on-site surface waters (SW-3), but below
the City of Renton Threshold level;
► Lead anc. nickel were observed only in the off-site surface waters (SW-MH);
► Off-site surface waters had a higher concentration of TPH than the on-site surface
waters;
► Low concentrations of arsenic, chromium, copper, and zinc were detected in all
storm waiver samples;
► PCBs and benzene were not detected in the on-site or off-site storm waters; and
► Surface water samples collected from the erosion control pond generally had
lower concentrations of analytes than the off-site (SW-MH) and on-site waters
(SW-3).
SURFACE WATER SAMPLING LOCATIONS
Surface water sampling was conducted at three on-site locations. These locations and
brief descriptions are given below.
► SW-MH Surface water generated completely off site entering the PACCAR
itorm sewer system at the southeast corner of the site was sampled at
the manhole at this location. The surface water stream was moderately
:urbid, had a slight sheen, and was approximately 1 to 2 inches deep.
► SW-3 Combined surface water generated on site (erosion control ponds and
ditches) and off site (E/W Interceptor and Houser Way Bypass) was
.ampled at the South Site Interceptor Manhole, at station 22+06. The
urface water was approximately 12 inches deep.
► SW-P2 Surface water generated completely on site and collected in a ditch
z1ong the western site boundary and near Erosion Control Pond 2. This
location has been referred to as SW-EC2 in the past sampling rounds.
Ar/
PACCAR Inc;. J-1639-23
March 23, 1992 Page 3
The surface water had no sheen and was approximately 1 to 2 inches
deep.
Chemical con-,entrations from sampling location SW-MH (off-site storm waters) will
be regarded as background or baseline levels, and used in comparison to water
quality of on-rite PACCAR-generated waters.
SURFACE WATER SAMPLING ANALYSES
We collected Nvater samples at locations SW-MH, SW-3, and SW-P2 on March 4,
1992. The wa:er samples were analyzed by the Hart Crowser FAST Laboratory for
TPH by EPA :Method 8015 Modified.
The samples were also analyzed by Analytical Technologies, Inc. (ATI), for the
following constituents:
► Chromium, copper, nickel, lead, and zinc (EPA Method 6010, ICAP);
► Arsenic (EPA Method 7060, AA/GF);
► Polychlorinated Biphenyls (EPA Method 8080, PCBs only);
► Benzene (EPA Method 8020); and
► Vinyl chloride (EPA Method 8010).
Final analytical results were received by Hart Crowser on March 20, 1992. Pursuant
to conversations with Randall Parsons, the results for metals analyses refer only to the
"total" metals fraction.
RESULTS
Table 1 summarizes the analytical results for the March 1992 surface water sampling
round.
Benzene and PCBs were not detected in any of the storm water samples.
Arm
PACCAR Inc:. J-1639-23
March 23, 1992 Page 4
Vinyl chloride; was observed in on-site storm waters (SW-3) at 0.0019 mg/L, well
below the City of Renton Threshold Level of 0.004 mg/L.
Detected concentrations of arsenic, chromium, copper, lead, nickel, zinc, and TPH in
the off-site storm waters were greater than concentrations in the on-site storm waters.
Concentrations of lead and nickel were only detected off site at SW-MH at 0.043
mg/L and 0.016 mg/L respectively. The observed concentration of nickel was below
the City of Renton threshold value (0.080 mg/L).
Surface water sampling location SW-MH had the highest concentrations of arsenic,
chromium, copper, lead, nickel, and zinc (0.023, 0.029, 0.042, 0.043, 0.016, and 0.32
mg/L, respectively).
On-site surface; waters had low concentrations of arsenic, chromium, copper, and zinc
detected above; the City of Renton Threshold Levels but below the off-site surface
waters, considered to be background.
LIMITATIONS1
Work for this project was performed, and this letter report prepared, in accordance
with generally ;accepted professional practices for the nature and conditions of the
work completed in the same or similar localities at the time the work was performed.
It is intended for the exclusive use of PACCAR Inc. for the specific application to the
referenced property. No other warranty, express or implied, is made.
Any questions regarding our work and this letter report, the presentation of the
information, and the interpretation of the data are welcome and should be referred to
the undersigned.
fw
PACCAR Inc. J-1639-23
March 23, 1)92 Page 5
We trust thi:, letter meets your needs. Please call if you have any further questions.
Sincerely,
HART CROWSER, INC.
MAR CATI[ERIN
G`t E KYLEY ZOY K. KUROIWA
Sr. Staff Environmental Chemist Sr. Staff Engineer
y
JOHN T. FINN, P.E.
Associate
SURFMAKLR
Attachments:
Table 1 - Analytical Results of Surface Water Monitoring
March 1992 Sampling Round
cc: (w/Attachments)
Bob Butlei, PACCAR (2)
Claus Hackenberger, PACCAR
Randall Parsons, City of Renton
Ron Nelson, City of Renton
David South, Washington State Department of Ecology (3)
Hart Crowser
J-1639-23
Table 1 - Analytical Results of Surface Water Monitoring
March 1992 Sampling Round
Cnncentritinn in ma/1 I
Sample ID Date As Cr Cu Pb Ni Zn PCB TPH Benzene Vinyl
Chloride
SW-MH 3/4/92 0.023 0.029 0.042 0.043 0.016 0.32 ND J 4 ND ND
SW-3 3/4/92 0.0063 0.012 0.016 1 ND ND 0.17 ND 2 ND 0.0019
SW-P2 3/4/92 0.0060 0.012 0.020 ND ND 0.049 ND ND ND ND
Trip blank 3/4/92 NA NA NA NA NA NA NA NA ND ND
Laboratory 0.005 0.0050 0.010 0.030 0.010 0.010 0.001 1 0.0005 0.0002
Detection
Limits
City of 0.005 0.005 0.007 0.001 0.080 0.059 1 100 0.005 0.004
Renton
Threshold
Levels
J = Estimated result due to low surrogate recovery during analysis.
NA = Not analyzed.
ND = Not detected at detection limit.
SW-MH = Southeast manhole; off-site surface water only.
SW-3 = South Site Interceptor Manhole; both on-site and off-site surface water.
SW-P2 = North Site Erosion Control Pond No. 2; on-site surface water only.
Trip blank = Trip blank for sampling round.
SURFMAR-LR-Zw 1
I
Hart Crowser,/nc.
• WWSC-R 1910 Fairview Avenue East
Seattle,Washington
98102
FAX 206.328.5581.5581
Earth and Environmental Technologies 206.324.9530
\� 17 1992
HIV OF RENTON
Engineering Dept.
J-1639-23
March 16, 1992
Mr. Robert K. Butler, P.E.
PACCAR Inc.
P.O. Box 1518
Bellevue, Washington 98009
Re: February 1992 Surface Water Quality Monitoring Results
North Site Grading and Filling Activities
PACCAR, Renton Site
Dear Mr. Butler:
This letter report presents the results of monthly storm water sampling conducted
during ongoing site construction and remediation activities at the PACCAR Renton
Site.
No surface water samples were collected during February as there was insufficient
rainfall. As you recall, there are stringent precipitation requirements for surface
water sampling. Surface water samples have been collected for March, and the
results will be provided upon receipt of the certificates of analyses.
Seame - Tacoma - Richia,d - Anchorage - Portland - San Francisco - Long Beach
�I
PACCAR Inc. J-1639-23
March 16, 1992 Page 2
We trust this letter meets your needs. Please call if you have any further questions.
Sincerely,
HART CROWSER, INC.
MARY CATHERINE KILEY RO KUROIWA
Sr. Staff Environmental Chemist Sr. 9taff Engineer
PU-%
JOHN T. FIN;v, P.E.
Associate
0292surf.lr
cc: Bob Butler, PACCAR (2)
Claus Hackenberger, PACCAR
Randall Parsons, City of Renton
Ron Nelson, City of Renton
David South, Washington State Dept of Ecology (3)
ArN
L/
HA. RTCROWSER Hart Dowser,Inc.
1910 Fairview Avenue East
Seattle,Washington 98102
FAX 206.328.5581
Earth and Environmental Technologies 206.324.9530
it'll
J-1639-23 1 `1992
CIT`, OF RENTON
February 18, 1992 Engineering Dept
Mr. Robert K. Butler, P.E.
PACCAR Inc.
P.O. Box 1518
Bellevue, Washington 98009
Re: January 1992 Surface Water Quality Monitoring Results
North Site Grading and Filling Activities
PACCAR, Renton Site
Dear Mr. Butler:
This letter report presents the results of monthly surface water sampling conducted
during ongoing site construction and remediation activities at the PACCAR Renton
Site. Samples were collected on January 27, 1992. Final analytical results were
received by Hart Crowser on February 10, 1992. Sampling and analysis were
conducted in accordance with Hart Crowser's Surface Water Quality Monitoring
Program, as approved and revised by Randall Parsons of the City of Renton Storm
and Waste Water Division, September 19, 1991.
SUMMARY OF FINDINGS
► On-site surface water samples collected from the erosion control pond (SW-EC2)
had lower concentrations of analytes than the off-site (SW-MH) and on-site waters
(SW-3);
► Benzene and Polychlorinated biphenyls (PCBs) were not detected in the on-site or
off-site surface waters;
Seattle - Tacoma • Richland • Anchorage • Portland • San Francisco • Long Beach
` •
L�
PACCAR Inc. J-1639-23
February 18, 1992 Page 2
► Vinyl chloride was detected in one surface water sample (SW-3);
► Total petroleum hydrocarbon (TPH) was detected in both the on-site and off-site
surface waters;
► Arsenic and nickel were detected in the off-site surface water sample
(SW-MH) as well as in the combined off-site and on-site surface water sample
(SW-3); and
► Chromium, copper, lead, and zinc were detected in all surface water samples.
SURFACE WATER SAMPLING LOCATIONS
Surface water sampling was conducted at three points located on the PACCAR
Renton site. Brief descriptions of these locations are given below and are shown on
Figure 1.
► SW-MH Surface water generated completely off site entering the PACCAR
storm sewer system at the southeast corner of the site sampled at the
manhole at this location. The surface water stream was turbid flowing
swiftly, had a slight sheen, and was approximately 9 to 12 inches deep.
► SW-3 Surface water generated on site (erosion control ponds and ditches) and
off site (E/W Interceptor and Houser Way Bypass) was sampled at the
South Site Interceptor Manhole, at station 22+06. The surface water
stream was slightly turbid, had a sheen, and was approximately 12
inches deep.
► SW-EC2 Surface water generated completely on site and collected in an erosion
control pond in the north half of the PACCAR site was sampled at a
point within the pond near the spillway. The surface water had no
sheen and was approximately 2 to 4 inches deep. Storm water was
flowing into but not out of the pond.
f'
�r
PACCAR Inc. J-1639-23
February 18, 1992 Page 3
Chemical concentrations from sampling location SW-MH (off-site surface water) are
regarded as background or baseline concentrations and used in comparison to water
quality of PACCAR-generated waters.
SURFACE WATER ANALYSES
We collected water samples at locations SW-MH, SW-3, and SW-EC2 on January 27,
1992. The samples were analyzed by the Hart Crowser FAST Laboratory for TPH by
EPA Method 8015 Modified.
The samples were also analyzed by Analytical Technologies, Inc. (ATI), for the
following constituents:
► Chromium, copper, nickel, and zinc (EPA Method 6010, ICAP);
► Arsenic (EPA Method 7060, AA/GF) and lead (EPA Method 7421, AA/GF);
► PCBs (EPA Method 8080, PCBs only);
► Benzene (EPA Method 8020); and
► Vinyl chloride (EPA Method 8010).
Final analytical results were received by Hart Crowser on February 10, 1992.
Pursuant to conversations with Randall Parsons of the City of Renton, the results for
metals analyses refer only to the "total" metals fraction.
RESULTS
Table 1 summarizes the analytical results for the January 1992 surface water sampling
round.
Benzene and PCBs were not detected in any of the surface water samples.
TPH was detected well below the City of Renton Threshold Level in sampling
locations SW-MH and SW-3 at concentrations of 0.7 and 0.3 mg/L, respectively.
Ar/
PACCAR Inc. J-1639-23
February 18, 1992 Page 4
Vinyl chloride was detected in surface waters (SW-3) at a concentration of 0.0016
mg/L which is below the City of Renton Threshold Level.
Concentrations of all metals in the off-site surface waters (SW-MH) were greater than
concentrations in the on-site surface waters (SW-EC2). Concentrations of arsenic,
chromium, copper, lead, nickel and zinc were detected at SW-3 at 0.0084, 0.031,
0.049, 0.067, 0.017, and 0.15 mg/L, respectively.
LIMITATIONS
Work for this project was performed, and this letter report prepared, in accordance
with generally accepted professional practices for the nature and conditions of the
work completed in the same or similar localities, at the time the work was performed.
It is intended for the exclusive use of PACCAR Inc. for specific application to the
referenced property. No other warranty, express or implied, is made.
Any questions regarding our work and this letter report, the presentation of the
information, and the interpretation of the data are welcome and should be referred to
the undersigned.
Arm
PACCAR Inc. J-1639-23
February 18, 1992 Page 5
We trust that this report meets your needs.
Sincerely,
HART CROWSER, INC.
C"
,�.40t -
R K. KUROIWA
41
Sr. Staff Engineer
AL
� u
MARY CATHERINE KILEY JOHN T. FINN, P.E.
Sr. Staff Environmental Chemist Associate
RKKhjr
SURFJAN.LR
.Attachments:
Table 1 - Results of Surface Water Monitoring
January 1992 Sampling Round
Figure 1 - Surface Water Sampling Location Plan
cc: (w/Attachments)
Bob Butler, PACCAR (2)
Claus Hackenberger, PACCAR
Randall Parsons, City of Renton
Ron Nelson, City of Renton
David South, Washington State Department of Ecology
Hart Crowser
J-1639-23
Table 1 - Analytical Results of Surface Water Samples
January 1992 Sampling Round
Concentration in mg/L
Sample ID Date As Cr Cu Pb Ni Zn PCB TPH Benzene Vinyl
Chloride
SW-MH 1/27/92 0.012 0.028 0.035 0.051 ND 0.15 ND 0.7 ND ND
SW-3 1/27/92 0.0084 0.031 0.049 0.067 0.017 1 0.15 ND 0.3 ND 0.0016
SW-EC2 1/27/92 ND 0.012 0.025 0.009 ND 0.041 ND ND ND ND
Trip blank 1/27/92 NA NA NA NA NA NA NA NA ND ND
Laboratory 0.005 0.010 0.005 0.003 0.01 0.01 0.001 0.1 0.005 0.0002
Detection
Limits
City of 0.005 0.005 0.007 0.001 0.080 0.059 1 100 0.005 0.004
Renton
Threshold
Levels
SW-MH = Southeast manhole; off-site storm water only
SW-3 = South Site Interceptor Manhole; both on-site and off-site storm water
SW-EC2 = North site Erosion Control Pond No. 2; on-site storm water only
Trip blank = Trip blank for sampling round
ND = Not detected at detection limit
NA = Not Analyzed
J = Estimated due to surrogate recoveries out of control limits
SURFJAN.LR Pg 5
Surface Water Sampling Location Plan
PACCAR Renton Sewer System
I�
LU LI `
0'17 G �,
"RCP Storm Sewer Line o ®SW-3 Storm Water Sampling
i; ! -MH Location and Number
SW r�
Manhole and Cleanout
II 1991 Storm Sewer Addition
Existing Storm Sewer System
ti
Abandoned Storm Sewer
RCP Storm
Sewer Line
� I r
i
I
SW-3
1h I I u
Drainage Di . i
Erosion Control Pond No.2
,%with Spillway IJ
i
SW-EC2*
------ -- -- -----T U
RCP Storm Sewer Line r j I� I 0 250 500
Scale in Feet
* Notes: 1. Erosion control pond No.2 is aboveground. AM
V
2. Sample will be from pond or pond spillway.
3. Pond does not connect to manhole. HA. wW-B
J-1639-23 2192
Figure 1
f�
Hart Crowser,Inc
wSER 1970 Fairview Avenue East
Seattle,Washington 98102
FAX 206.328.5581
Earth and Environmental Technologies 206,324,9530
J-1639-23
January 10, 1992 A; r ` Q
Mr. Robert K. Butler, P.E.
PACCAR Inc.
P.O. Box 1518
Bellevue, Washington 98009
Re: December 1991 Surface Water Quality Monitoring Results
North Site Grading and Filling Activities
PACCAR, Renton Site
Dear Mr. Butler:
This letter report presents the results of monthly surface water sampling conducted
during ongoing site construction and remediation activities at the PACCAR Renton
Site. Samples were collected on December 18, 1991. Final analytical results were
received by Hart Crowser on January 8, 1992. Sampling and analysis were conducted
in accordance with Hart Crowser's Surface Water Quality Monitoring Program, as
approved and revised by Randall Parsons of the City of Renton Storm and Waste
Water Division, September 19, 1991.
SUMMARY OF FINDINGS
► TPH, benzene, and PCBs were not detected in the on-site or off-site surface
waters;
► Vinyl chloride, lead, nickel, and zinc were detected in one on-site surface water
sample (SW-3);
r
► Chromium and copper were detected in all surface water samples;
► Surface water samples collected from the erosion control pond (SW-EC2) had
lower concentrations of analytes than the off-site (SW-MH) and on-site waters
(SW-3); and
ti • •
Ar/
PACCAR Inc. J-1639-23
January 10, 1992 Page 2
► City of Renton's Threshold Levels remain as stated by Randall Parsons. Screening
levels specific to the PACCAR site are currently in review. These levels will be
recommended based on typical residential urban runoff quality, Model Toxics
Control Act (MTCA) cleanup levels, and federal Chronic Freshwater Toxicity
levels. Table 2 provides a summary of surface water criteria and background
levels of contaminants.
SURFACE WATER SAMPLING LOCATIONS
Surface water sampling was conducted at three on-site locations as shown on Figure
1. These locations and brief descriptions are given below.
► SW-MH Surface waters generated off site enter the PACCAR storm sewer
system at the southeast corner of the site; sampling point is from a
manhole location. The surface water stream had a slight sheen and was
approximately 1 to 1.5 inches deep;
► SW-3 Surface waters generated completely on site and collected inside the
flow restrictor in the South Site Interceptor Manhole, at station
22 + 06. The surface water stream was approximately 3 inches deep
and had no sheen; and
► SW-EC2 Surface waters generated completely on site and collected in an erosion
control pond in the north half of the PACCAR site; sampling point is
the ditch which catches the spillway of the pond. The surface water had
no sheen and was approximately 1 inch deep.
Chemical concentrations from sampling location SW-MH (off-site surface waters) will
be regarded as background or baseline concentrations and used in comparison to
water quality of PACCAR-generated waters.
SURFACE WATER ANALYSES
We collected water samples at locations SW-MH, SW-3, and SW-EC2 on December
18, 1992. We also collected a duplicate sample (SW-EC2DP) during the December
sampling round. The samples were analyzed by the Hart Crowser FAST Laboratory
for the following:
► Total petroleum hydrocarbons (EPA Method 8015 Modified).
�r
Arm
PACCAR Inc. J-1639-23
January 10, 1992 Page 3
The samples were analyzed by Analytical Technologies, Incorporated (ATI) for the
following constituents:
► Arsenic, chromium, copper, nickel, lead, and zinc (EPA Method 200.7, ICAP);
► Hexavalent Chromium, (EPA Method 7196, Colorimetric);
► Polychlorinated Biphenyls (EPA Method 608, PCBs only);
► Benzene (EPA Method 8020); and
► Vinyl chloride (EPA Method 8010).
Final analytical results were received by Hart Crowser on January 8, 1992. Pursuant
to conversations with Randall Parsons of the City of Renton, the results for metals
analyses refer only to the "total' metals fraction.
RESULTS
Table 1 summarizes the analytical results for the December 1991 surface water
sampling round. A summary of surface water criteria and background concentrations
of analytes are provided in Table 2.
TPH, benzene, and PCB were not detected in any of the surface water samples.
Vinyl chloride was detected in on-site surface waters (SW-3) at a concentration of
0.0084 mg/L which exceeds the City of Renton Threshold Levels.
Concentrations of all metals in the on-site surface waters (SW-3) were greater than
concentrations in the off-site surface waters. Detected concentrations of arsenic,
chromium, copper, and zinc in off-site and on-site surface waters exceeded the City of
Renton Threshold Levels. Concentrations of lead and nickel were detected at SW-3
at 0.12 mg/L and 0.052 mg/L, respectively. The concentration of lead exceeded the
City of Renton Threshold Level of 0.001 mg/L.
LIMITATIONS
Work for this project was performed, and this letter report prepared, in accordance
with generally accepted professional practices for the nature and conditions of the
work completed in the same or similar localities, at the time the work was performed.
It is intended for the exclusive use of PACCAR Inc. for specific application to the
referenced property. This report is not meant to represent a legal opinion. No other
warranty, express or implied, is made.
Arm
PACCAR Inc. J-1639-23
January 10, 1992 Page 4
Any questions regarding our work and this letter report, the presentation of the
information, and the interpretation of the data are welcome and should be referred to
the undersigned.
We trust that this report meets your needs.
Sincerely,
HART CROWSER, INC.
* a /
MARY CATHERINE KILEY JOHN T. FINN, P.E.
Senior Staff Environmental Chemist Associate
MCK(jr
SURFDEC.LR
Attachments:
Table 1 - Results of Surface Water Monitoring
December 1991 Sampling Round
Table 2 - Summary of Surface Water Quality and Background Information
Figure 1 - Surface Water Sampling Location Plan
cc: (w/Attachments)
Bob Butler, PACCAR (2)
Claus Hackenberger, PACCAR
Randall Parsons, City of Renton
Ron Nelson, City of Renton
David South, Washington State Dept of Ecology (3)
Hart Crowser
J-1639-23
Table 1 - Results of Surface Water Monitoring
December 1991 Sampling Round
Concentration in mg/L
Sample ID Date As Cr Cu Pb Ni Zn PCB TPH Benzene Vinyl
Chloride
SW-3 12/18/91 0.017 0.058 0.093 0.12 0.052 0.23 ND J ND ND 0.0084
SW-EC2 12/18/91 ND 0.014 0.0074 ND ND I ND ND ND ND ND
SW-EC2DP 12/18/91 ND 0.015 0.0069 ND ND ND ND ND ND ND
SW-MH 12/18/91 0.011 0.018 0.019 ND ND 0.14 ND ND ND ND
Trip blank 12/18/91 NA NA NA NA NA NA NA NA ND ND
Laboratory 0.050 0.020 0.005 0.030 0.01 0.01 0.001 1 0.005 0.002
Detection
Limits
City of 0.005 0.005 0.007 0.001 0.080 0.059 1 100 0.005 0.004
Renton
Threshold
Levels
SW-3 = On-site open drainage ditch
SW-4 = On-site surface water basin
SW-4DP = Duplicate from surface water basin
SW-MH = Off-site surface waters; manhole
Trip blank = Trip blank for sampling round
ND = Not detected at detection limit
NA = Not Analyzed
J = Estimated due to surrogate recoveries out of control limits
SURFDECLRPg5
Hart Crowser
J-1639-23 •'
Table 2 - Summary of Surface Water Quality and Background Information
Concentration in mg/L
MTCA Method Average Upstream Concentration in surface Laboratory
Analvtc B Surface Surface Water Concentration b water from PACCAR site ` PQL
Water Criteria Runoff' October 1991 October 1991
As 0.00084 0.13 0.050 U 0.050 U 0.050
Cr (total) (Not listed) --- 0.021 0.010 0.005
Cr (VI) 0.011 0.07 0.010U 0.010U 0.010
Cu 0.007 0.020 0.038 0.024 0.005
Pb 0.001 2.10 0.030 U 0.035 0.030
Ni 0.080 0.12 0.010 U 0.010 U 0.010
Zn 0.059 1.20 0.15 0.089 0.010
PCB 0.00014 --- 0.001 0.001 0.001
Total PCBs (Not listed) 0.008 0.007 0.007 0.007
TPH (Not listed) --- 2 1 1
Benzene 0.43 --- 0.001 0.001 0.001
Vinyl Chloride 0.029 --- 0.002' 0.0084' 0.0022
a = Taken from Toxicants in Urban Runoff, Metro Toxicant Program Report No. 2, 1982.
n = Concentration in surface water generated off site and entering the PACCAR site: sampling location SW-MH.
= Concentration in surface water generated completely on site: sampling location SW-3.
U = Undetected at laboratory practical quantitation limit
PQL = Practical Quantitation Limit
MTCA = Model Toxics Control Act
' = Concentration of analyte in December 1991 surface water sample
2 = PQL for laboratory analysis in December 1991
suddecAr pg 6
Surface Water Sampling Location Plan
PACCAR Renton Sewer System
0
't7
mem
MMe
/ I O° (DSW-3 Storm Water Sampling
RCP Storm Sewer Line M M M 1 j
SW—MH Location and Number
Ei
Manhole and Cleanout
1991 Storm Sewer Addition
Existing Storm Sewer System
Abandoned Storm Sewer
' Li
RCP Storm —
Sewer Line
r
J I i I
o
Lam---
El
�_
0;
I
SW-3 :
Draina e i )�
Erosion Control Pond No.7
----- I t
with Spillway t
M =4
i
i
1 !
SW-EC2* -� --------Cl
Li
L--�--r--- i i
- -- ------ -- ---- C�- -----------
------------
�' �t �—� I 0 250 500
RCP Storm Sewer Line r l l
Scale in Feet
1 I
Arm
* Notes: 1. Erosion control pond No.2 is aboveground. iV
2. Sample will be from pond spillway. w ;
3. Pond does not connect to manhole.
J-1639-23 1192
Figure 1
z ,
t
A
HAAA.FR
CROW viewAv n er Inc.
1910 Fairview Avenue East
Seattle,Washington 98102
® V FAX 206.328.5581
206.324.9530
Earth and Environmental Technologies
DEC 1� 1991
J-1639-23 CITY OF RENTON
Engineering Dept
December 17, 1991
Mr. Robert K. Butler, P.E.
PACCAR Inc.
P.O. Box 1518
Bellevue, Washington 98009
Re: November 1991 Storm Water Quality Monitoring Results
North Site Grading and Filling Activities
PACCAR, Renton Site
Dear Mr. Butler:
This letter report presents the results of monthly storm water sampling conducted
during ongoing site construction and remediation activities at the PACCAR Renton
Site. Samples were collected on November 11, 1991. Final analytical results were
received by Hart Crowser on December 12, 1991. Sampling and analysis were
conducted in accordance with Hart Crowser's Surface Water Quality Monitoring
Program, as approved and revised by Randall Parsons of the City of Renton Storm
and Waste Water Division, September 19, 1991.
SUMMARY OF FINDINGS
► TPH, benzene, vinyl chloride, and PCBs were not detected in the on-site or off-
site storm waters;
Seattle • Tacoma • Richland • Anchorage • Portland • San Francisco • Long Beach
�r
PACCAR Inc. J-1639-23
December 17, 1991 Page 2
► Lead and nickel were detected at low levels in on-site storm waters;
► Low levels of chromium, copper and zinc were detected in all storm water
samples; and
► City of Renton's Threshold Levels will remain as stated by Randall Parsons.
Screening levels specific to the PACCAR site are currently in review. These levels
will be recommended based on Model Toxics Control Act (MICA) criteria and
Federal Chronic Freshwater Toxicity levels.
SURFACE WATER SAMPLING LOCATIONS
Storm water sampling was conducted at three on-site locations as shown on Figure 1.
These locations and brief descriptions are given below.
► SW-MH Storm waters generated off site enter the PACCAR storm sewer system
at the southeast corner of the site; sampling point is from a manhole
location. The storm water stream was turbid and approximately 1 inch
deep;
► SW-3 Storm waters generated completely on site and collected in a ditch
along the western site boundary; sampling point is in the ditch and
approximately 100 feet south of the north property line. The storm
water stream was turbid and approximately 4 inches deep;
► SW-4 Storm waters in the PACCAR storm sewer system along the northern
site boundary; sampling point is from a cleanout located midpoint of
the north site boundary, and approximately 25 feet south of the
property line. The storm water stream was turbid, with a sheen, an
organic surface residue, and approximately 6 inches deep; and
A ,
PACCAR Inc. J-1639-23
December 17, 1991 Page 3
► SW-EC2 Storm waters generated completely on site and collected in an erosion
control pond in the north half of the PACCAR site; sampling point is
from the spillway of the pond. The erosion control pond was dry.
Chemical concentrations from sampling location SW-MH (off-site storm waters) will
be regarded as background or baseline levels, and used in comparison to water
quality of on-site PACCAR generated waters. On the date of sampling, location
SW-EC2 was dry. Consequently, surface water sampling location SW-4 was used in
place of SW-EC2.
SURFACE WATER SAMPLING ANALYSES
Storm water samples were collected at sampling locations SW-MH, SW-3, and SW-4
on November 11, 1991. In addition, a duplicate sample SW-4DP was collected during
the November sampling round. The water samples were analyzed by the Hart
Crowser FAST Laboratory for the following:
► Total petroleum hydrocarbons (EPA Method 8015 Modified);
► Benzene (EPA Method 8020); and
► Vinyl chloride (EPA Method 8010).
Water samples were analyzed by Analytical Technologies, Incorporated (ATI) for the
following constituents:
► Arsenic, chromium, copper, nickel, lead, and zinc (EPA Method 200.7, ICAP);
► Hexavalent Chromium, (EPA Method 7196, Colorometric); and
► Polychlorinated Biphenyls (EPA Method 608, PCBs only).
Final analytical results were received by Hart Crowser on December 12, 1991.
Pursuant to conversations with Randall Parsons, the results for metals analyses refer
only to the "total' metals fraction.
AM
PACCAR Inc. J-1639-23
December 17, 1991 Page 4
RESULTS
TPH, benzene, vinyl chloride, and PCB were not detected in any of the storm water
samples.
Detected concentrations of chromium, copper, and zinc in the on-site storm waters
were comparable to levels in the off-site storm waters.
Lead was detected in the on-site water samples at concentrations ranging from 0.047
to 0.083 mg/L. Concentrations of nickel (0.023 to 0.037 mg/L) were detected below
the City of Renton threshold value (0.080 mg/L).
Storm water sampling location SW-4DP (duplicate) had the highest concentrations of
chromium, copper, lead, nickel, and zinc (0.056, 0.079, 0.083, 0.037, and 0.23 mg/L,
respectively).
Table 1 summarizes the analytical results for November 1991 storm water sampling
round.
•
Arm
PACCAR Inc. J-1639-23
December 17, 1991 Page 5
We trust this letter meets your needs. Please call if you have any further questions.
Sincerely,
HART CROWSER, INC.
L^ C�� •
RO K. KUROIWA JOHN T. FINN, P.E.
Senior Staff Engineer Associate
MAR CATHERINE KILEY
Senior Staff Environmental Chemist
RK KMT/MCKjrl�1
suxFxov.LR
Attachments:
Table 1 - Results of Storm Water Monitoring - November 1991
Figure 1 - Surface Water Sampling Location Plan
cc: (w/Attachments)
Bob Butler, PACCAR (2)
Claus Hackenberger, PACCAR
Randall Parsons, City of Renton
Ron Nelson, City of Renton
David South, Washington State Dept of Ecology (3)
Table 1 - Preliminary Results of Stormwater Monitoring - November Sampling Round
Concentration in mg/L
Sample ID Date As Cr Cu Pb Ni Zn PCB TPH Benzene Vinyl
Chloride
SW-3 11/11/91 ND 0.024 0.045 0.047 0.023 0.13 ND J ND ND ND'
SW-4 11/11/91 0.062 0.046 1 0.073 0.078 0.035 0.20 1 ND J ND ND ND'
SW-4DP 11/11/91 0.056 0.056 0.079 0.083 0.037 0.23 ND J ND ND ND'
SW-MH 11/11/91 ND 0.040 0.023 ND ND 0.16 ND ND ND ND'
Trip blank 11/11/91 NA NA NA NA NA NA NA NA ND ND'
Laboratory 0.050 0.020 0.010 0.030 0.010 0.04 0.001 NA 0.001
Detection
Limits
City of 0.005 0.005 0.007 0.001 0.080 0.059 1 100 0.005 0.004
Renton
Threshold
Levels
SW-3 = On-site open drainage ditch
SW-4 = On-site stormwater basin
SW-4DP = Duplicate from stormwater basin
SW-MH = Off-site stormwaters; manhole
Trip blank = Trip blank for sampling round
ND = Not detected at detection limit
NA = Not Analyzed
ND' = Not detected (qualitative assessment)
J = Estimated due to surrogate recoveries out of control limits
SUP,FNOV.LR Pg 6
Surface Water Sampling Location Plan
PACCAR Renton Sewer System
Existing
Storm Sewer Line
0
O
SW-3 Storm Water Sampling
\7RCP Storm Sewer Line I ! SW—MH ® Location and Number
I
! Manhole and Cleanout
i I ; 1991 Storm Sewer Addition
1 Existing Storm Sewer System
I Abandoned Storm Sewer
----------- f�
rJ
RCP Storm — I
Sewer Line
� I . I
SW-4
i
13
;1
1 iIf -
SW-3 l ' I L
Draina e Di
,, Erosion Control Pond n2 \ ' ------- i i l 1—'
%with Spillway
O
SW-ECe ----
I I d �--
0 j
0 250 500
RCP Storm Sewer Line
I Scale in Feet
I i I
i
/7
* Notes: 1. Erosion control pond 92 is aboveground. I L
2. Sample will be from pond spillway. w�;
3. Pond does not connect to manhole.
J-1639-23 12191
Figure 1
all •
1
MrV
Mwa?0ws UR Hart Crowser,Inc.
1910 FairvewAvenue Ea;r
Seattle,Nrash�ngron 98to1
FAX 206,328,558 7
106.31C.3530
Earth and Fnv;ronmenrar Technologres
J-1639-23
December 2, 1991
Mr. Robert K Butler, P.E.
PACCAR Inc.
P.O_ Box 1518
Bellevue, Washington 98009
Re: October 1991 Storm Water Quality Monitoring Results
North Site Grading and Filling Activities
PACCAR, Renton Site
Dear Mr. Butler:
This letter report presents the results of monthly storm water sampling conducted
during ongoing site construction and remediation activities at the PACCAR Renton
Site. Samples were collected on October 24, 1991. Final analytical results were
received by Hart Crowser on November 26, 1991. Sampling and analysis were
conducted in accordance with Hart Crowser's Surface Water Quality Monitoring
Program, as approved and revised by Randall Parsons of the City of Renton Storm
and Waste Water Division, September 19, 1991.
SUNIARY OF FINDINGS
> Off-site storm water runoff which enters the PACCAR storm sewer system
contained chemical concentrations in excess of the storm water runoff generated
on site;
:edtilE Tacoma - R;CPiland • Anchorage, - Porrland - sanFraocisro • Long Beach
7-0`d TbSESEE Ol a3SM02d0 i�JUH WOaA LO:LT T66T—Z0-03Q
MM1
PACCAR Inc. J-1639-23
December 2, 1991 Page 2
► Benzene, vinyl chloride, PCBs, arsenic, and hexavalent chromium were not
detected in the on-site or off-site storm waters;
► Low levels of chromium, copper, lead, and zinc were detected in all storm water
samples; and
► City of Renton's Threshold Levels are currently in review. Threshold levels will be
adjusted based on achievable laboratory detection limits and aquatic toxicity levels.
SURFACE WATER SAMPLING LOCATIONS
Storm water sampling was conducted at three on-site locations. These locations and
brief descriptions are given below.
► SW-MH Storm waters generated off site enter the PACCAR storm sewer system
at the southeast corner of the site; sampling point is from a manhole
location. The storm water stream was turbid, with sheen, and
approximately 2 inches deep;
► SW-3 Storm waters generated completely on site and collected in a ditch
along the western site boundary; sampling point is in the ditch and
approximately 100 feet south of the north property line. The storm
water stream was turbid and approximately 2 inches deep;
► SW-4 Storm waters in the PACCAR storm sewer system along the northern
site boundary consisting of both on-site and off-site storm waters;
sampling point is from a cleanout located midpoint of the north site
boundary, and approximately 25 feet south of the property line. The
storm water stream was turbid, with a organic surface residue, and
approximately 6 inches deep; and
20°d TbSZSSZ 01 d3SMO0JJ l�ldH WO�id LO:LT T66T-EO-S3Q
�I
PACCAR Inc. J-1639.23
December 2, 1991 Page 3
► SWEC2 Storm waters generated completely on site and collected in an erosion
control pond in the north half of the PACCAR site; sampling point is
from the spillway of the pond. The erosion control pond was dry.
Chemical concentrations from sampling location SW-MH (off-site storm waters) will
be regarded as background or baseline levels, and used in comparison to water
quality of on-site PACCAR generated waters. On the date of sampling, location
SWEC2 was dry. Consequently, surface water sampling location SW-4 was used in
place of SW-EC2.
SURFACE WATER SAMPLING ANALYSES
Storm water samples were collected at sampling locations SW-MH, SW-3, and SW-4
on October 24, 1991. In addition, a duplicate sample, SW-M11DP, and a field blank
were collected during the October sampling round. The water samples were analyzed
by the Hart Crowser FAST Laboratory for the following:
► Total petroleum hydrocarbons (EPA Method 8015 Modified);
► Benzene (EPA Method 8020); and
> Vinyl chloride (EPA Method 8010).
Water samples were analyzed by Analytical Technologies, Incorporated (An) for the
following constituents:
► Arsenic, chromium, copper, nickel, lead, and zinc (EPA Method 200.7, ICAP);
• Hexavalent Chromium, (EPA Method 7196, CoIorometric); and
► Polychlorinated Biphenyls (EPA Method 608, PCBs only).
Final analytical results were received by Hart Crowser on November 26, 1991.
Results were received three weeks later than expected due to reanalysis of the
samples for metals. As a result of conversations with Randall Parsons, the results for
metals analyses refer only to the "total' metals fraction. "Dissolved" hexavalent
chromium will be analyzed during this sampling round only.
b0'd TPSZSSZ Oi a3SMO0 JD iaeH WOad LO:Li TSST-Za-33G
PACCAR Inc. J-1639-23
December 2, 1991 Page 4
RESULTS
Benzene, vinyl chloride, PCB, arsenic, and hexavalent chromium were not detected in
any of the storm water samples.
Off-site storm waters (SW-MH) had the highest concentrations of chromium, capper,
and zinc (0.021, 0.038, and 0.15 mg/1 , respectively). Zinc concentrations were
actually highest in the duplicate sample, SW-MHDP, at 0.25 mg/L. Nickel was
detected solely in the duplicate off-site sample, SW-MHDP, at 0.014 mg/L
Off-site and on-site storm waters had concentrations of lead ranging from 0.030 to
0.042 mg/L. SW-MI1DP had concentrations of lead (0.042 mg/L) in excess of the on-
site samples (maximum 0.035 mg/L).
Total petroleum hydrocarbons were detected in all but one storm water sample at a
concentration of 2 mg/L.
In all cases where a compound is detected in storm water samples, the chemical
concentration from off-site locations exceeds that from the on-site locations. This
situation occurs for chromium, copper, and anc. Concentrations of nickel are only
observed in the off-site storm waters.
Table 1 summarizes the analytical results for October 1991 storm water sampling
round.
SO'd TVSZSEZ Ol OSM02JD i�JdH WOaA Oa:LT T66T-Z0-DEG
AL,
PACCAR Inc. J-1639-23
December 2, 1991 Page 5
We trust this letter meets your needs. Please call if you have any further questions.
Sincerely,
HART CROWSER, INC.
1 4 �/P�- 1�41
R
OYIUROIWA MARY CAMIUNE KILEY
Senior Staff Engineer Sr. Staff Environmental Chemist
u
AL70
e"
JOHN T. FINN, P.E.
Associate
fir
SLT"WATELR
Attachment:
Table 1 - Results of Storm Water Monitoring - October 1991
cc: (w/Attachment)
Bob Butler, PACCAR (2)
Claus Hackenberger, PACCAR
Randall Parsons, City of Renton
Ron Nelson, City of Renton
David South, Washington State Dept of Ecology (3)
90'd TbSZSSZ Ol ddSMOaD iaUH WO�LJ OO:LT T66T-z0-OEQ
Hart Crowser
J-1639-23
m
a_
Table 1 - Results of Storm Water Monitoring - October 1991
v
L
N
1n Concentration in mg/L
N
Sample ID Date As Cr Cr Cu Pb Ni Zn PCB 'ITH Benzene Vinyl
(Vq Chloride
SW-3 10/24/91 ND 0,010 ND 0.024 0.035 ND 0.089 ND ND ND ND'
SW-4 10/24/91, ND 0.025 ND 0.026 0.030 ND 0.12 ND 2 ND ND'
SW-MH 10/24/91 ND 0.021 ND 0.038 ND ND 0.15 ND 2 ND ND'
SWMHDP 10/24/91 ND 0.027 ND 0.033 0.042 0.014 0.25 ND 2 ND ND'
SW-Rinse 10/24/91 ND ND ND ND ND ND ND ND ND ND ND'
Trip Blank 10/24/91 NA NA NA NA NA NA NA NA NA ND ND'
Laboratory 0.050 0,010 0.010 0.0050 0.030 0.01 0.01 0.001 1 0.001
w
'n Detection Limits
3
O
ly-
City of Renton 0.005 0.005 0.011 0.007 0.001 0,080 0.059 1 100 0.005 0.004
Threshold
CE
r Levels
o SW-3- Open drainage duce
SW4 — Storm water basin
SW•MH - Storm water sample collected from manhole
m SW-MIiDP - Duplicate storm Water sample colleted from manhole
SW-Rinse-Pield Blank
ND — Not detected at detoction limit
NA — Not Ana"
Q, ND' - Not detected(qualitative assessment)
Toluene was deaeded at 0.001 tng1L in SW-ME,SW MFiDP,and SW-Rinse
SURMAMUt•Pe 6
U
W
Q
MEETING AGENDA
CONFIRMATION MONITORING AND INSPECTION PLAN-PACCAR SITE
MARCH 3, 1997 @ RENTON CITY HALL
10:00 TO 11:30 AM
ATTENDED BY PACCAR,HART CROWSER,DALTON/OLMSTED/FUGLEVAND,
ECOLOGY AND CITY OF RENTON
• Status of Confirmation Monitoring and Inspection Plan (Ecology)
• Brief overview of CMIP (Hart Crowser)
• Ecology concerns (Ecology)
• City of Renton concerns/questions(City)
REMEDIAL ACTIONS
• Underground Storage Tanks (USTs) Removed (by 1988)
• Above Ground Storage Tanks (ASTs) Removed (by 1989)
• PCB Containing Transformers Removed (bj n6l)
• Excavated and Treated 105,000 cubic yards Soil Containing
Petroleum Hydrocarbons (March 1997 - 8,000 cubic yards
remain to be treated)
• Excavated and Solidified 30,000 cubic yards Metal (lead,
chromium, arsenic) Containing Soil
• Material Disposed of Off-Site:
* 20,000 cubic yards Oversize Debris
X Several Thousand Cubic Yards of Soil Containing
PCBs and CPAHs
• Construction Scheduled to be Completed in November 1997
r
PACCAR RENTON SITE -MARCH 1997
EARLY GROUND-WATER QUALITY MONITORING
• Began In 1984
• Consisted of:
* Numerous Well Installations by PACCAR and
Renton
* Flow System Evaluations (Contour Maps)
* 1987 "Aquifer Test"
* Water Quality Sampling
• Results Incorporated Into 1989 RI:
* Identified Ground-Water Divide
* Identified CAP Ground-Water Contaminants of
Concern
* No Adverse Impact to Renton Water Supply
• Results Incorporated Into Renton Aquifer Protection Program
r
PACCAR RENTON SITE - MARCH 1997
Groundwater Elevation Contour Map Position of Groundwater Divide
Lower Send Unit August 26, 1987 May 1987 to .tune 1989
as
ev
— -- -- - CSN eTH ST // I- \ I� ' �• • aI
022.55 •
5 4 21.580 / \ 1 •
.._.._. _ - ♦+ N 7TH ST_ _ 1
} w N I ` PAC AR to
24.29
21.9101
`'N 6TH STa
Z Z Z Z
W W W W I
Z N < Y x 019.95
25.690
N TH ST 2 5.6 9 0 /,'fir•'.;.
< ��' ♦•
•
W
.23 •� 1•
0
23.67 �••
1 �
_ r %r • _
N 4TH ST .63 /
Area h I ounc ter Z
divid 1 r M 198 W W
to Jung 1989 �•i 0 ? ,��� I
field7.
��.• 1
j, 17.300 <
r N RD S I
`.
• 1►
�O7 N ND ST 16.3 • ,. �•i.. -. �-mac
9 •r9- � i,P �- �J �---
7.1
\ r•
\. seCal ..� 013W89
Pa rk --- "
1
n 21.87 \�L'
■
J4 .
Base map prepared Irom USGS 7.5-minule quadrangles of Mercer Island and Renton. Washing t on.0 500 1000
River Staff Gape O Monitoring Well —20— Groundwater Elevation Scale in Feet
Plezometer Contour in Feet A
Q City of Renton jL --
Production Well
� Groundwater Divide��
16.67 Spot Groundwater Approximate Location J•1B3"9 9188
Elevation in Feet Horizontal Projection of Figure 5.10
Groundwater Flow Lines
CLEANUP ACTION PLAN (CAP)
CONTAMINANTS OF CONCERN
(Based on Remedial Investigation)
Soil/Dust Ingestion Ground Water Ingestion
Exposure Pathway Exposure Pathway
Arsenic Arsenic
Chromium Vinyl Chloride
Lead Benzene
Carcinogenic PAHs Lead
PCBs Petroleum Hydrocarbons
Petroleum Hydrocarbons
Hot-Spot Action Levels
Cleanup Levels
PACCAR RENTON SITE - MARCH 1997
LONG-TERM WATER QUALITY MONITORING
• March 1990 to Present 'de,11^, �" 9 )
�� 0
• Ground-Water and Surface Water Sampling
• Semiannual Sampling (March/October)
• Ground-Water Analytes
* Arsenic
* Lead
* Volatile Organic Chemicals (inc. benzene and vinyl chloride)
* Semivolatile Organic Chemicals (inc.CPAHs)
�j if
• Surface Water Analytes
* Arsenic
* Chromium
* Copper
* Lead
* Nickel
* Zinc
* PCBs
* Petroleum Hydrocarbons
* Benzene
* Vinyl Chloride
• Results - Ground-Water Quality Has Improved
PACCAR RENTON SITE-MARCH 1997
Cleanup Level Comparisons -Wells LW-9S and LW-9D PACCAR Slte
Renton,Washington
Vinyl Chloride Conc. in LW-9D
120
100
80
—•—VC(ugA)
60 • — — VC HSL(ugA)
c —�—VC CUL(ugA)
U
40
20
0 500 1000 1500 2000 2500
Days Since July 1988
Days(1) Arsenic(ugA) As CUL(ugA) Days(1) VC(ugA) VC HSL(ugA) VC CUL(ugA)
0 8 5 0 120 2 0.4
215 8 5 215 62 2 0.4
608 8 5 608 32 2 0.4
822 5 822 31 2 0.4
973 16 5 973 13 2 0.4
1187 5 1187 30 2 0.4
1339 7 5 1339 8 2 0.4
1553 5 1553 32 2 0.4
1704 7 5 1704 13 2 0.4
1918 5 1918 7 2 0.4
2069 <5 5 2069 2 2 0.4
2283 5 2283 2 2 0.4
2434 <5 5 2434 <1 2 0.4
2648 2648 <3 2 0.4
Notes: VC-Vinyl Chloride
As-Arsenic
CUL-Cleanup Level
(1)-Days Since July 1988
Revised:321/96
(COMPAR.XLS-LW9)
Dalton,Olmsted Fuglevand,Inc. Page 3 of 3
Cleanup Levels'Comparisons -Wells MW-31 and OSP-2D PACCAR Site
Renton,Washington
MW-31
Date Days Arsenic(ugA) Lead(ugA) Benzene(ugA) VC(ugA) CPAHs(ugA)
Jul-88 0 17 <5 <1 <1 <4
Feb-89 215 17 7 <1 <1 <4
Mar-90 608 12 <5 <5 <5 <4
Mar-91 973 16 1 2.7 <1 <1 <1
Mar-92 1339 13 <1 <1 <1 <1
Mar-93 1704 10 <1 <1 <1 <1
Mar-94 2069 6 <1 <1 <1 <1
Mar-95 1 2434 <5 <1 <1 <1 <1
CAP Cleanup Level 5 5 5 0.4 na
CAP Hot-spot Action Level 50 50 5 2 na
MW-31 -Summary of Findings
(1)-Number of samples-8
(2)-Concentrations of benzene are below CAP cleanup levels.
(3)-Concentrations of vinyl chloride are below the CAP hot-spot level of 2 ugA.
(4)-CPAHs were not detected at a reporting limit of 1 ug/I.
(5)-Six of the seven lead analyses meet cleanup levels.
Application of the nonparametric method for the median Upper Confidence Limit(Section
5.3.3- Ecology Statistical Guidance) using the latest six lead results indicates a median
Upper Confidence Limit of less than 5 ug/I for lead which meets the cleanup level of 5 ug/i.
Two additional sampling rounds should be completed to provide at least 8 sample results
since concentration stability was apparently achieved in March 1991.
(6)-Arsenic concentrations have declined in samples from Well MW-31 (see graph below).
The most recent result is below the arsenic cleanup level however, additional data is required to
determine whether concentration stability has been achieved.
Arsenic Concentratior:; in Well MW-31
18
16
14
rn 12
c 10 -0 Arsenic(ugA)
8 — — As CUL(ugA)
0 6
— a — — —
4 -f- - - - - - - - - - - - - - -t - -
2
0
0 500 1000 1500 2000 2500
Days Since July 1988
Days Arsenic(ugA) As CUL(ugA)
0 17 5
215 17 5
608 12 5
973 16 5 CUL-Cleanup Level
1339 13 5
1704 10 5
2069 6 5
2434 <5 5
Revised:11P20/95
(C O M PA R.X LS-M W-31-O S P-2D)
Dalton,Olmsted Fuglevand,Inc. Page 1 of 2
OVERVIEW OF PROPOSED CONFIRMATION
MONITORING PLAN
Ground-Water Monitoring
* Based on Over Ten Years of Monitoring Data
* Monitoring of"Upper" and "Lower" Ground-Water Zones
* Semiannual Sampling in:
Background Wells (2 wells)
Site Boundary Wells (22 wells)
Stabilized Cell Wells (5 wells)
Information Wells (2 wells)
* Sampling CAP Ground-Water Contaminants of Concern
* Improved Analytical Procedures for CPAHs and Vinyl Chloride
* Eliminate or Reduce Frequency for Selected Analytes After at
Least 8 Samples are Below Ground-Water Cleanup Levels
0 Sufrace Water Monitoring
* Four locations
* Semiannual Sampling During On-set of Storm Events in March
and October ,
* Analyze For:
Total lead, nickel, chromium, copper and zinc
Hexavalent chromium
Arsenic
PCBs
Petroleum Hydrocarbons
CPAHs
PACCAR RENTON SITE -MARCH 1997
TABLE 10 -Water Quality Monitoring Schedule PACCAR Site
Renton,Washington
Well Number Screen Depth Zone Volatile Organic PAHs TPHs Dissolved Dissolved
(feet) Chemicals (Method 8310) (WTPH-DX) Arsenic/Lead Chromium
(Method 8021)
Background
OSP-1S 12-22 upper sand — — SA SA SA
OSP-ID 41-51 lower sand — — SA SA SA
Site Boundary Wells
LW-1 S 3-6 upper sand SA(a) SA(a) SA (a) —
LW-1 D 27-37 upper sand SA(a) SA(a) SA (a) —
LW-6S 4-9 upper aquitard SA SA(a) SA (a) —
LW-6D 27-37 upper sand SA SA(a) SA SA-As;(A)-Pb —
LW-9S 9-14 upper aquitard SA(a) SA(a) SA SA-As;(A)-Pb —
LW-9D 28-38 upper/lower sand SA SA(a) SA SA-As;(A)-Pb —
LW-1¢$ 10-15 upper sand SA(a) SA(a) SA SA-As;(A)-Pb —
MW-31 16-21 upper sand SA(a) SA(a) SA SA-As;(A)-Pb —
OSP-2D 34-44 lower sand/delta SA(a) SA(a) SA (a) —
OSP-4S 13-23 upper sand SA(a) SA(a) SA (a) —
OSP-4D 4045 lower sand/delta SA(a) SA(a) SA SA-As;(A)-Pb —
OSP-5S 11-21 upper sand SA(a) SA(a) SA (a) —
OSP-50 47-52 lower sand SA SA(a) SA (a) —
OSP_6S 12-17 upper aquitard SA(a) SA(a) SA (a) —
OSP-6D 36-46 upper sand SA(a) SA(a) SA SA-As;(A)-Pb —
MW-10 23-33 upper sand SA(a) SA(a) SA SA-As;(A)-Pb —
OSP-3D 37-47 lower sand/detta SA(a) SA(a) SA SA-As;(A)-Pb —
A(S)' target 15-20 upper sand SA(a) SA(a) SA SA —
A(D)' target 35-45 lower sand SA SA(a) SA SA —
B(S)' target 10-15 upper sand SA(a) SA(a) SA SA —
B(D)' target 35-45 lower sand SA(a) SA(a) SA SA —
C(D)- target 35-45 upper sand SA(a) SA(a) SA SA —
Stabilized Cell Wells
OSP-7S 12-17 upper aquitard — — — SA SA
OW-4S 12-22 upper sand — — SA SA SA
LW-7S 5-10 upper sand — — — SA SA
SC-1(S)- target 10-15 upper sand — — — SA SA
SC-2(S)' I target 10-15 upper sand — — — SA SA
Information Wells
OW-4D 36-46 lower sand — — SA SA-As —
R-1 O(S) I upper sand SA — — — —
(a)-Sample two additigmal rounds as part of confirmation monitoring program to confirm compliance with cleanup levels.
If compliance is confirmed,eliminate from monitoring program.
—-No sampling for indicated monitoring parameter is required.
SA-Semiannual sampling(March and October)
A-Annual sampling(March)
S-Shallow depth monitoring well
I-Intermediate depth monitoring well
D-Deep monitoring well
-Proposed new wells
Revised:3/23/96
Dalton,Olmsted Fuglevand,Inc. Page 1 of 1 (WELLSCHXLS-sample)
H 4y C_
Zone 2 of
• • &roSP-1S Aquifer Protection area
;Y` Ntt.S Ptt ea
•"11 NY-0.15 O V
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Legend
Available Monitoring Well r—�--1 Stabilized Material Cell PACCAR Site
0Sp"6S and Number rt-�-^ Renton, Washington
Shallow Confirmation
L
Proposed New Monitoring Well Hot-Spot Excavation SC-1 S Area Well Locations
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ref:8well.edr Dalton, Olmsted & Fuglevanci, Tnc.
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a
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_ ,n
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OSP-&D
OSP-4D
OSP-5D
Legend
Available Monitoring Well PACCAR Site
OSP-6D
and Number Stabilized Material Cell Renton, Washington
Deep Confirmation
Proposed New Monitoring Well Hot-Spot Excavation
B(D) </> Area Well Locations
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municipal Se-or System
Mouser Vwkqy Novo
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Cl —' I i°
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a
y PACCAR Site
Renton, W"hington
i
SURFACE WATER
SAMPUNG LOCATIONS
PAC-002 FIGURE 22 Mmil 1996
a Ref:rHurf.Cdr Dalton, Olmsted ec Fuglevand, Inc.
}
4
CONFIRMATION MONITORING PLAN
PACCAR SITE
RENTON, WASHINGTON
D � �
o Q
Prepared for:
PACCAR Inc.
Dalton, Olmsted & Fuglevand, Inc. Environmental Consultants
Draft: May 1996
Dalton, Olmsted& Fuglevand, Inc.
Confirmational Monitoring and Inspection Plans Draft: May14, 1996
Former PACCAR Defense Systems Site
Renton, Washington
CONTENTS
EXECUTIVESUMMARY.....................................................................................................................I
INTRODUCTION...................................................................................................................................I
SCOPEAND ORGANIZATION........................................................................................................................I
PROJECTBACKGROUND...................................................................................................................2
REQUIRED CLEANUP ACTIONS AND STATUS OF REMEDIATION......................................................................2
SITEHYDROGEOLOGY................................................................................................................................3
GROUND-WATER FLOW DIRECTIONS AND AQUIFER PROTECTION PROGRAM.................................................4
GROUND-WATER MONITORING PLAN..........................................................................................5
GROUNDWATER QUALITY BACKGROUND INFORMATION.............................................................................5
GROUNDWATERCLEANUP LEVELS............................................................................................................6
POINTOF COMPLIANCE...............................................................................................................................7
SITE BOUNDARY WELL LOCATIONS....................... ..................................................................................7
COMPARISON OF GROUND-WATER QUALITY DATA WITH CLEANUP LEVELS..................................................8
WATER LEVEL MONITORING LOCATIONS..................................................................................................16
CONFIRMATION MONITORING PROGRAM GROUND-WATER SAMPLING LOCATIONS......................................17
INSTALLATION OF NEW WELLS.................................................................................................................17
GROUND-WATER MONITORING PARAMETERS............................................................................................17
FieldParameters.................................................................................................................................17
LaboratorvParameters.......................................................................................................................17
Sampling Procedures and Analytical Methods.....................................................................................18
GROUND-WATER MONITORING SCHEDULE................................................................................................18
GROUND-WATER QUALITY DATA REPORTING AND EVALUATION...............................................................19
Trend Analvse_r and Comparison to Cleanup and Hot-Spot Levels.......................................................19
DURATION OF AND ADfUSTMENTS TO THE GROUND-WATER MONITORING PROGRAM..................................20
Duration of Ground-ffoter Monitoring Program.................................................................................20
PotentialProgram Adjustments...........................................................................................................21
AnalyticalMethods.............................................................................................................................22
Ground-I1•ater Sampling Technique............ ........................................................................................22
Eliminationof Parameters...................................................................................................................22
CONTINGENCY PLAN AND SCHEDULE........................................................................................................22
SURFACE WATER MONITORING...................................................................................................23
SURFACE WATER QUALITY BACKGROUND INFORMATION...........................................................................23
SURFACE WATER COLLECTION SYSTEM....................................................................................................23
SURFACE WATER CLEANUP LEVELS..........................................................................................................24
POINTOF COMPLIANCE.............................................................................................................................24
SURFACE WATER SAMPLING LOCATIONS...................................................................................................24
SAMPLING PROCEDURES XND ANALYTICAL METHODS...............................................................................25
SURFACE WATER MONITORING SCHEDULE................................................................................................25
DURATION OF THF.SURFACE WATER MONITORING PROGRAM.....................................................................26
FIVE YEAR REVIBk.................... ....26
...........................................................................................................
DATA EVALUATION AND REPORTING.........................................................................................................26
QualityAssurance:... ......................................................................................................................_..26
Reporting to Ecology After Each Sampling Event....,..............................................I...........................26
Comparisonto Cleanup Levels............................................................................................................26
i
Dalton, Olmsted& Fuglevand, Inc.
Confirmational Monitoring and Inspection Plans Draft: May14, 1996
Former PACCAR Defense Sv_stems Site
Renton, Washington
ADJUSTMENTS TO THE SURFACE WATER MONITORING PROGRAM...............................................................26
CONTINGENCY PLAN AND SCHEDULE........................................................................................................27
STRUCTURAL FILL COVER MONITORING.................................................................................27
REPORTING..............................................................................................................................................28
REFERENCES......................................................................................................................................29
List of Tables
Table E1 - Water Quality Monitoring Schedule
Table 1 - Status of Site Boundary (Point of Compliance) Wells
Table 2 - Summary of Dissolved Arsenic Concentrations in Ground Water
Table 3 - Summary of Vinyl Chloride Concentrations in Ground Water
Table 4 - Summary of Benzene Concentrations in Ground Water
Table 5 - Summary of Dissolved Lead Concentrations in Ground Water
Table 6 - Summary CPAH Concentrations in Ground Water
Table 7 - Summary of Ground-Water Attainment Status
Table 8 - Summary of Water Level Measurement Wells
Table 9 - Confirmation Water Quality Monitoring Wells
Table 10 - Water Quality Monitoring Schedule
List of Figures
Figure E1 - Shallow Confirmation Well Locations
Figure E2 - Deep Confirmation Well Locations
Figure I - Vicinity Map
Figure 2 - Locations of Excavated Hot-Spots and Solidified Soil Cells
Figure 3 - Regional Hydrogeologic Map
Figure 4 -Vicinity Geologic Cross Section
Figure 5 -Well Location Map Showing Cross Section Trends
Figure 6 - Geologic Sections
Figure 7 - Shallow Zone Ground-Water Flow Directions
Figure 8 - Deep Zone Ground-Water Flow Directions
Figure 9 - Shallow Well Locations
Figure 10 - Deep Well Locations
Figure 11 -Arsenic Concentrations in Site Boundary Shallow Wells
Figure 12 -Arsenic Concentrations in Site Boundary Deep Wells
Figure 13 - Arsenic Concentrations in Wells LW-6S. LW-6D. LW-9S and LW-9D
Figure 14 -Arsenic Concentrations in Wells OSP-6S. OSP-6D, OSP4S and OSP-4D
Figure 15 -Arsenic Concentrations in Wells MW-IO. OSP-3D, MW-3I and LW-12S
Figure 16 -Vinyl Chloride Concentrations in Site Boundary Shallow Wells
Figure 17 - Vinyl Chloride Concentrations in Site Boundary Deep Wells
Figure 18 - Vinyl Chloride Concentrations in Wells LW-9S, LW-9D, LW-6S and LW-6D
Figure 19 - Vinyl Chloride Concentrations in Weils OSP-5S, OSP-5D and LW-IOS/R-IOS
Figure 20 - Shallow Confirmation Well Locations
Dalton, Olmsted &Fuglevand, Inc.
Confirmational Monitoring and Inspection Plans Draft. May14, 1996
Former PACCAR Defense Systems Site
Renton, Washington
Figure 21 - Deep Confirmation Well Locations
Figure 22 - Surface Water Sampling Locations
List of Appendices
Appendix A - Ground-Water Quality Summary on Well-BY-Well Basis
Appendix B -Ground Water and Surface Water Sampling Procedures
Appendix C - Quality Assurance Procedures
iii
EXECUTIVE SUMMARY �J
CONFIRMATION MONITORING PLAN 1�\
PACCAR, RENTON SITE ��
V
BACKGROUND AND PURPOSE
The Cleanup Action Plan (CAP) approved by the Washington State Department of Ecology
(Ecology) in September 1991 requires that PACCAR develop Confirmation Monitoring Plans
to assess the success of the remediation at the former PACCAR Defense Systems site located
in Renton, Washington. The major goals of the remediation were to meet ground water and
surface water cleanup levels at the site boundary (point of compliance) and to prevent contact
with contaminants that remain on the site. The cleanup actions completed at the site include:
• Excavating and treating soils above hot-spot action levels using solidification (for
metals) and bioremediation (for soils containing petroleum residues).
• Excavating and disposing off-site a small volume of soil and sediment containing
PCBs above hot-spot action levels.
• Covering the remaining soils above cleanup levels with structural fill or pavement
to prevent:
- direct contact with contaminated soil;
- erosion of contaminated soil; and
- generation of contaminated dust.
The Confirmational Monitoring Plan, as required by the CAP, addresses the following
elements:
• Ground-Water Quality,
• Surface Water Quality, and
• Integrity of the Structural Fill and Pavement Covers.
Collectively, these plan elements provide for monitoring conditions at the PACCAR site to
assess that the completed remediation is sufficiently protective of human health and the
environment.
GROUND-WATER QUALITY MONITORING PLAN
Ground-water quality monitoring at the site is required to meet two objectives:
• Assess the performance of the remedy at the point of compliance (site boundary),
and
• Confirm that ground-water quality is not impacted from the leaching of metals
from stabilized soils that contain metals above hot-spot action levels.
The ground-water monitoring program was developed using guidance provided by Ecology
and the results of measurements completed over the past nine years. Analysis of hydrologic
data indicates that the western and southern portions of the site are downgradient with respect
Dalton, Olmsted & Fuglevand, Inc.
Confirmational Monitoring and Inspection Plans Draft: Ma_y14, 1996
Former PACCAR Defense Systems Site
Renton, Washington
to ground-water flow directions. Ground water beneath most of the site flows towards the
Cedar River. A small amount of the site's flow beneath the south-southeastem portion of the
site potentially flows towards the Renton well field.
The CAP identifies benzene, vinyl chloride, lead, and arsenic as the ground-water contaminants
of concern. Analyses for carcinogenic polycyclic aromatic hydrocarbons (CAPHs), petroleum
hydrocarbons and chromium will also be made because these constituents remain in site soils
above cleanup levels.
• Ground-water monitoring will be completed in twenty-four(24) existing and seven
(7) to be installed wells (see Figures E-1 and E-2 for well locations; Table E-1
summarizes the monitoring schedule).
• Samples in selected wells will be collected one or two times per year depending on
the well location.
• PACCAR is requesting, after the initial two sampling rounds, that analysis of
volatile organic compounds (benzene and vinyl chloride) and CPAHs be eliminated
for most of the wells (see Table E-1).
SURFACE WATER QUALITY MONITORING PLAN
Surface water quality monitoring at the site is required to assess that surface water cleanup
levels are met at the point of compliance that is defined as the site boundary where surface
water leaves the site.
• Sampling will be completed twice per year(March and October) at four locations.
Three of the locations are where surface water leaves the site. The fourth location
is "upstream" of the site and will provide data on the quality of urban runoff in
areas adjacent to the site.
• Analyses will be made for metals, CAPHs, PCBs, and petroleum hydrocarbons.
STRUCTURAL FILL AND PAVEMENT COVERS MONITORING PLAN
• Inspection of the structural fill (and pavement) covers will be completed on an
annual basis to ensure that the cover systems maintain their integrity.
• The inspection will consist of observing the condition of the cover to identify areas
where the cover integrity may have been compromised by erosion, excavation,
settlement, rutting, etc. Repairs will be recommended and completed as necessary.
2
Dalton, Olmsted& Fuglevand, Inc.
Confirmational Monitoring and Inspection Plans Draft: Ma_v 14. 1996
Former PACCAR Defense Systems Site
Renton, Washington
DURATION OF MONITORING PROGRAM AND PERIODIC REVIEWS
In accordance with the CAP, monitoring will continue in some form until residual hazardous
substances in on-site media no longer exceed site cleanup levels or for a minimum of five
years, whichever is longest. Continued monitoring will specifically address aspects of the site
that pose a potential risk of release or exposure, as determined by on-going review of the
technical data. A reduction in monitoring scope is anticipated with time.
Monitoring data will be reviewed annually and compliance with cleanup levels will be
assessed. Modifications to the program can be proposed and implemented with the approval of
Ecology. In the year 2003, after the initial five-year period starting with the March 1998
sampling event, a comprehensive review of the monitoring data will be made. In accordance
with the CAP, if the March 2003 ground water contaminant concentrations are not below the
hot-spot action levels, additional remediation may be required.
3
TABLE E1 -Water Quality Monitoring Schedule PACCAR Site
Renton,Washington
Well Number Screen Depth Zone Volatile Organic PAHs TPHs Dissolved Dissolved
(feet) Chemicals (Method 8310) (WTPH-DX) Arsenic/Lead Chromium
(Method 8021)
Background
OSP-1 S 12-22 upper sand — — SA SA SA
OSP-1 D 41-51 lower sand — — SA SA SA
Site Boundary Wells
LW-1 S 3-6 upper sand SA(a) SA(a) SA (a) —
LW-1 D 27-37 upper sand SA(a) SA(a) SA (a) —
LW-6S 4-9 upper aquitard SA SA(a) SA (a)
LW-6D 27-37 upper sand SA SA(a) SA SA-As;(A)-Pb —
LW-9S 9-14 upper aquitard SA(a) SA(a) SA SA-AS;(A)-Pb —
LW-9D 28-38 upper/lower sand SA SA(a) SA SA-As;(A)-Pb —
LW-14S 10-15 upper sand SA(a) SA(a) SA SA-As;(A)-Pb —
MW-31 16-21 upper sand SA(a) SA(a) SA SA-As;(A)-Pb --
OSP-2D 34-44 lower sand/delta SA(a) SA(a) SA (a) —_
OSP-4S 13-23 upper sand SA(a) SA(a) SA (a) —_
OSP-4D 40-45 lower sand/delta SA(a) SA(a) SA SA-As-,(A)-Pb —
OSP-5S 11-21 upper sand SA(a) SA(a) SA (a) —
OSP-5D 47-52 lower sand SA SA(a) SA (a) —
OSP-6S 12-17 upper aquitard SA(a) SA(a) SA (a) —
OSP-6D 36-46 upper sand SA(a) SA(a) SA SA-As,(A)-Pb —
MW-10 23-33 upper sand SA(a). SA(a) SA SA-As.-(A)-Pb —
OSP-3D 37-47 lower sand/delta SA(a) SA(a) SA SA-As;(A)-Pb —
A(S)- target 15-20 upper sand SA(a) SA(a) SA SA —
A(D)- target 35-45 lower sand SA SA(a) SA SA —
B(S)' target 10-15 upper sand SA(a) SA(a) SA SA --
B(D)- target 35-45 lower sand SA(a) SA(a) SA SA —
C(D)- target 35-45 upper sand SA(a) SA(a) SA SA —
Stabilized Cell Wells
OSP-7S 12-17 upper aquitard — — — SA SA
OW-4S 12-22 upper sand — -- SA SA SA
LW-7S 5-10 upper sand — — -- SA SA
SC-1(S)- target 10-15 upper sand — — — SA SA
SC-2(S)- target 10-15 upper sand — — — SA SA
Information Wells
OW-4D 36-46 lower sand -- — SA SA-As —
R-10(S) upper sand SA — —_ — —
(a)-Sample two additional rounds as part of confirmation monitoring program to confirm compliance with cleanup levels.
If compliance is confirmed,eliminate from monitoring program.
---No sampling for indicated monitoring parameter is required.
SA-Semiannual sampling(March and October)
A-Annual sampling(March)
S-Shallow depth monitoring well
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Revised:3/21/96
Dalton,Olmsted Fuglevand,Inc. Page 1 of 1 (MONSCH.XLS)
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CONFIRMATIONAL MONITORING AND INSPECTION PLANS
FORMER PACCAR DEFENSE SYSTEMS SITE
RENTON, WASHINGTON
1v
INTRODUCTION
Scope and Organization
The following Confirmational Monitoring and Inspection Plans were prepared as
required in Section 6. COMPLIANCE MONITORING of the Final Cleanup Action
Plan (CAP) (Ecology 1991) for the former PACCAR Defense Systems site located in
Renton, Washington (Figure 1). The CAP requires that PACCAR develop
Confirmational Monitoring Plans for ground water and surface water. The CAP also
requires that an "inspection plan" be developed to ensure that the structural fill cover
maintains its integnty.
This document contains five major sections including this INTRODUCTION section.
The other major sections are:
• PROJECT BACKGROUND;
• GROUND-WATER MONITORING;
• SURFACE WATER MONITORING; and
• STRUCTURAL FILL INSPECTION.
Tables and figures which support these sections follow at the end of the text.
The Cleanup Action Plan (CAP) (Ecology 1991) for the site outlines the general
requirements for monitoring at the site. Monitoring is required based on WAC 173-
340-360(8)(b) which states-
"Long-term monitoring (WAC 173-340-410) and institutional controls (WAC 173-
340-440) shall be required if on-site disposal, isolation, or containment is the
selected cleanup action for the site or a portion of the site. Such measures shall
be required until residual hazardous substance concentrations no longer exceed
site cleanup levels established under WAC 173-340-700 through WAC 173-340-
760. "
Monitonng at the PACCAR site, as required in the CAP and outlined in this plan, will
continue as long as residual hazardous substance concentrations remain above cleanup
levels. The distribution of monitoring between the three plan elements (ground water,
surface water, structural fill), however, is anticipated to change with time. If technical
Dalton, Olmsted& Fuglevand, Inc
Confirmational Monitoring and Inspection Plans Draft: May14, 1996
Former PACCAR Defense Systems Site
Renton, Washington
data demonstrate that cleanup levels are met in ground water, exposure risk at the site
would be limited to direct contact and/or runoff in surface water. Ground-water
monitoring may be eliminated as discussed under"Elimination of Parameters" later
in this plan, while surface water and structural fill monitoring would continue.
PROJECT BACKGROUND
Required Cleanup Actions and Status of Remediation
The Cleanup Action Plan (CAP) for the PACCAR site was approved by Ecology in
,j September 1991 after completion of a Remedial Investigation (RI) and Feasibility
}✓ %I Study (FS) and after public review. The cleanup actions contained in the CAP include:
.ram cl, 6
�y ��••c�°611-
Excavating and treating soil which exceed Hot-Spot Action Levels (HSALs) using
solidification (for metals) and bioremediation (for petroleum residues).
• Excavating and disposing off-site a small volume of soil and sediment containing
PCBs and CPAHs above HSALs.
• Covering the site with structural fill to prevent:
direct contact with contaminated soil;
erosion of contaminated soil; and
- generation of contaminated dust.
• Implementing institutional controls. One of these controls consists of restricting
on-site extraction of ground water.
• Developing and implementing a compliance monitoring plan. The required
monitoring and inspection plans are to be based on "data collected as part of the
remedial investigation, interim water quality monitoring program, and other
studies"(Ecology 1991).
The PACCAR site is 80 acres in size. The north 40 acres were initially remediated to
allow construction of the existing Kenworth Truck Plant (Figure 2). The truck plant
began operation in May 1993. Remediation of the south 40-acres is anticipated to be
complete in November 1997.
Excavation of soils (Figure 2) required by the CAP was completed in December 1995.
Soils which contained metals above action levels were stabilized and placed in cells at
the locations shown on Figure 2. Stabilization activities were completed in 1994.
Excavated soils which contained petroleum hydrocarbons above action levels are being
bioremediated and placed back on the site. Bioremediation of soils containing
petroleum hydrocarbons is projected to be complete by November 1997.
2
Dalton, Olmsted & Fuglevand, Inc
Confirmational Monitoring and Inspection Plans Draft: MaY14, 1996
Former PACCAR Defense Svstems Site
Renton, Washington
likely require public comment. This plan may include collection of additional data
necessary to complete the design.
SURFACE WATER MONITORING
Surface Water Quality Background Information
The quality of surface water migrating off the site via drainage ditches was evaluated in
the past during the RI (Hart Crowser 1989, 1990a) and as part of the Interim Water
Quality Monitoring Program (see references). Additional data is also being collected
as part of surface water sampling conducted during the on-going site construction and
remediation activities which started in August/September 1991. The results of the
analyses indicate that the pre-remediation quality of runoff from the site is similar to or
of better quality than that of runoff in urban residential and commercial neighborhoods.
Low concentrations of several metals and vinyl chloride have been detected in runoff
Surface Water Collection System
The surface water collection system has been substantially changed as part of site
redevelopment activities. Locations SW-3 and SW-4 sampled as part of the remedial
investigation no longer exist. The general outline of the storm water drainage system is
shown on Figure 22.
Major changes to the surface water collection system include:
• Abandonment and replacement of the north-south storm sewer pipeline that
was located in the center of the site. This pipeline previously carried flow
from both on-site and off-site sources. It was replaced with a new pipeline
located along Houser Way North and in the eastern portion of the site. The
new pipeline now only carries flow from off-site sources.
• Remediating and filling a ditch system previously located in the northwest
portion of the site. Former sampling station SW-3 was downstream of this
ditch system.
• Filling and paving the ditch system upstream of sampling station SW-4.
• Paving and installing a drainage system over much of the north half of the
site. This system includes a concrete lined detention basin, oil water
separator and biological filter to treat runoff from the north half of the site.
23
Dalton, Olmsted& Fuglevand, Inc.
Confirmational Monitoring and Inspection Plans Draft: May14, 1996
Former PACCAR Defense Systems Site
Renton, Washington
• Upgrading the drainage system within the south-half of the site over the
next several years where the structural fill cover will be present. As part of
the remediation, several drain lines were abandoned.
Surface Water Cleanup Levels
Surface water cleanup levels for chrotnium(VI), lead, copper, nickel and zinc are
contained in Table 3.7 of the cleanup action plan. The CAP also requires that
monitoring for arsenic, CPAHs, PCBs and TPH be conducted because these
constituents remain in soil above soil cleanup levels. Cleanup levels for these
additional constituents are also summarized below:
Cleanup Level (mg/1)
• Arsenic 0.048(a) as 24-hour avg. conc.
• Chromium(VI) 0.011(a) as 4-day avg. conc.
• Lead 0.001(a) as 4-day avg. conc.
• Copper 0.007(a) as 4-day avg. conc.
• Nickel 0.056(a) as 24-hour avg. conc.
• Zinc 0.047(a) as 24-hour avg. conc.
• CPAHs (c) _--
• PCBs 0.0001(a)(b) as 24-hour avg. conc.
TPH (d)
(a) Based on chronic aquatic life criteria(EPA 1986), assuming a local water hardness
of 50 mg/l CaCO3.
(b) Modified based on analytical considerations.
(c) No freshwater criteria exist for CPAHs. CPAHs will be monitored for
informational purposes. If significant detections occur, a cleanup level will be
established based on the specific compound(s) which are detected.
(d) No freshwater criteria exist for TPH.
Point of Compliance
The surface water point of compliance will be the site boundary where surface water
leaves the site.
Surface Water Sampling Locations
Three surface water locations will be sampled as described below The sampling
locations are shown on Figure 22.
24
Dalton, Olmsted & Fuglevand, Inc.
Confirmational Monitoring and Inspection Plans Draft: May14, 1996
• Former PACCAR Defense Systems Site
Renton, Washington
• SW-MH - Storm waters generated off site will be sampled at a man-hole
located near the southeast comer of the site. Data from this location will be
used for informational purposes on storm water quality for the general area.
• SW-DB - Storm waters generated on the paved north half of the site will
be sampled at the outlet of the detention basin. Data from this location
will be used for informational purposes because storm water being
sampled is derived from paved surfaces associated with the truck
manufacturing facility and discharge is be regulated under a storm water
discharge permit.
• SW-5 - Storm waters from the south half of the site (where the structural
fill cover will be installed) will be sampled at this location.
• SW-6 - Storm waters from the area where Building 17 was formerly
located.
Sampling Procedures and Analytical Methods
The previously approved analytical methods will be used, with the addition of
hexavalent chromium analyses. All analyses will be conducted on unfiltered samples.
The sampling procedures are outlined in Appendix B. The analytical methods to be
used are:
• Total lead, nickel, chromium, copper and zinc by SW 6010, EPA method
2007,. ICAP;
• Hexavalent chromium by EPA method 7196, colormetric;
• Arsenic - SW 7061;
• PCBs - SW 8080;
• TPH - WTPH-D(extended);
• CPAHs - EPA method 8310.
Surface Water Monitoring Schedule
Surface water sampling will be conducted semi-annually during the initial on-set of a
storm event in March and October, weather permitting. Samples during these general
periods will be collected from a storm event that produces more than 0.1 inch of
rainfall and occurs at least 72 hours after the last 0.1 inch rainfall event.
25
Dalton, Olmsted&Fuglevand, Inc.
Confirmational Monitoring and Inspection Plans Draft: MaY14, 1996
Former PACCAR Defense Systems Site
Renton, Washington
Duration of the Surface Water Monitoring Program
In accordance with the CAP, surface water monitoring will continue until residual
hazardous substance concentrations in all on-site media no longer exceed site cleanup
levels established in Section 3.6 of the CAP or for a minimum of five years.
Five Year Review
Surface water data will be reviewed in 2003 after an initial five-year period starting
five years after actual completion which is anticipated to be March 1998.
Data Evaluation and Reporting
Quality Assurance:
The quality of the data will be evaluated using the QA procedures outlined in the
previously approved work plan (Hart Crowser 1988) which are attached as Appendix
B.
Reporting to Ecology After Each Sampling Event
Data will be submitted to Ecology in a report within ninety days of receiving the data
from the analytical laboratory. This report will present the surface water quality data in
tabular form and discuss the quality of the data with respect to QA considerations.
Comparison to Cleanup Levels
Data from sampling location SW-5 will be compared to the cleanup levels in two steps.
The first step will be a direct comparison to the cleanup levels. If the sample
concentrations are below the cleanup levels, monitoring will continue as outlined in this
plan.
However, if the concentration of one or more of the parameters with cleanup levels
based on 24-hour or 4-day averages is exceeded, than a plan to assess whether the
concentrations exceed the applicable time-weighted averages will be prepared and
submitted to Ecology for approval. After Ecology approval is received, the plan will be
implemented according to an agreed upon schedule.
Adjustments to the Surface Water Monitoring Program
Major program reviews will be completed on a five-year basis. Guidelines for making
other adjustments are summarized below.
26
Dalton, Olmsted&Fuglevand, Inc.
Confirmational Monitoring and Inspection Plans Draft: May14, 1996
Former PACCAR Defense Sy_stems Site
Renton, Washington
During the First Five Years. No adjustments are anticipated. There is some
possibility that the surface water monitoring plan will be modified to be consistent with
permits for storm water discharge.
After the First Five Years.The surface water monitoring plan will be modified as
appropriate, based on data collected during the initial five years.
Contingency Plan and Schedule
If surface water concentrations exceed the cleanup levels the following actions will be
taken:
• Additional testing to assess the cause of the exceedance will be completed
if warranted. Whether such testing will be conducted will depend on the
type and location of the exceedance and a judgment whether such testing
would be successful in identifying the cause of the exceedance. Prior to
any testing, a sampling and analysis plan and schedule will be submitted to
Ecology for review and approval.
• Additional remedial actions will be evaluated. The need and type of remedial
actions will be discussed with Ecology. After a remedial approach is selected a
plan and schedule will be prepared to design and implement the selected
remedial action which will likely require public comment.
• To complete development of the south portion of the site storm water discharge
permits (Storm Water Pollution Prevention Plan under NPDES) will likely be
necessary. The monitoring program will be revised, as appropriate, to be
consistent with these permits.
STRUCTURAL FILL COVER MONITORING
The structural fill cover will be monitored on an annual basis after the cover is
completed. The cover over the north end of the site was completed in May 1993 and
the cover over the south end will be complete in November 1997. The annual
monitoring will include the following:
• A site walk will be completed by a engineer or technician, who will
observe the condition of the cover and note areas where the cover has been
disturbed by erosion, excavation, vegetation, or other means. Paved areas
will also be observed for settlements, ruts or other features which may
affect the effectiveness of the paving material to act as a cover;
27
Dalton, Olmsted&Fuglevand,Inc.
Confirmational Monitoring and Inspection Plans Draft: MaN114, 1996
Former PACCAR Defense Systems Site
Renton, Washington
• Any necessary repairs will be recommended based on the site observations.
The engineer or technician will document that the repairs were made in
accordance with their recommendations; and
• In areas where the cover has been disturbed during the past year,
PACCAR will provide documentation of the repairs.
Reporting
An annual report will be submitted to Ecology during the first quarter after the
reporting year which presents the results of the site observations, documents the cover
repairs which occurred during the previous year, and presents recommendations for
other actions, as appropriate.
28
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Renton, Washington
SURFACE WATER
SAMPLING LOCATIONS
Ref:rsurf.cdr
PAC-002 FIGURE 22 March 1996
Dalton, Olmsted & Fuglevand, Inc.
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7/j Renton, Washington
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SURFACE WATER
SAMPLING LOCATIONS
t `lr
FPAC-00? Flr-IIRP 1313
ST i TA--
STATE OF WASHINGTON
DEPARTMENT OF ECOLOGY
Northwest Regional Office, 3190 - 160th Ave S.E. • Bellevue, Washington 98008-5452 (206) 649-7000
February 24, 1997
Mr. Robert K. Butler
PACCAR, Inc.
P.O. Box 1518
Bellevue, Wa 98009
Dear Bob:
RE: Confirmation Monitoring Plan, PACCAR Site, Renton,
Washington, draft dated May 1996 . (1996 draft CMIP)
This letter presents Ecology' s review comments on the above
referenced document. The comments fall into eleven areas :
1 . Electronic database
2 . Relating monitoring wells to hydrogeology
3 . Analytical methods
4 . Current evaluation
5. Monitoring schedule and data evaluation
---� Surface water monitoring
7 . Cover monitoring
8 . Submittal of appendices
9. Detailed comments
10 . Data reporting
11 . City of Renton concerns
Electronic Database
Ecology, PACCAR, and Hart Crowser have worked together to
prepare a relational database for the groundwater data
gathered to date. The enclosed disk contains the current
database as file 96DATA. ZIP. When unzipped, the two
Microsoft Access files 96DATA.MDB and 96DATA.LDB are inflated
Mr: Robert K. Butler
•. February 24, 1997
Page 8
shows no further migration of contaminants for at least 10
years (after year 20) ."
The above schedule is based upon two considerations . First,
Ecology will not require 5 years of quarterly monitoring, but
will consider the 8 years of semi-annual data available.
Note that Ecology also is not requiring delay of the start of
long-term monitoring for wells not currently in compliance.
Second, the structural fill cap placed over the site was
placed to prevent direct contact and to prevent blowing dust.
It is not being relied upon to protect groundwater. This
means that. provision (3) of the above quote from the sampling
guidance may be invoked to provide an avenue to cease
monitoring on this site, since many of the contaminants left
on site above the soil cleanup level but below the soil hot-
spot action level are not expected to decompose. In order to
cease monitoring, groundwater monitoring parameters must be
below the groundwater cleanup level .
Data will be evaluated in conformance with regulatory
requirements, statistical guidance, and sampling guidance.
Either the upper 95% confidence limit on the mean or the
upper 95% limit on the median will be calculated and the data
evaluated to see if the 2-times or 10% rules are exceeded.
Ecology anticipates that, beginning with the March 1998
monitoring round, the latest ten rounds will be used for
initial compliance evaluation. If a well is out of
compliance based upon the last ten rounds, the trend will be
assessed to evaluate whether active treatment measures should
be implemented.
WAC 173-340-360 (8) (b) requires long-term monitoring so long
as residual hazardous substances remain on-site in excess of
cleanup levels . To meet this requirement, monitoring wells
should be maintained and inspected once per year, in
perpetuity, during cover inspection after sampling and
chemical analyses ceases. Each well should be sounded as
part of the inspection. This will ensure the well is opened,
inspected, and checked for lack of obstructions. The wells
should be available for sampling should any issues arise for
which sampling data are necessary for resolution.
Surface Water Monitorin
The 1996 draft CMIP proposes on p. 24 to monitor surface
water at three locations, and lists four locations on
P• 25.However, surface water t '
quality monitoring, as reported by �_ =
Mr- Robert K. Butler
February 24, 1997
Page 9
HartCrowser in the letter of May 16, 1996 to PACCAR, is being
conducted at five locations : SW-MH, SW-3, SW-DP, SW-5, and
SW-6- Figure 22 of the 1996 draft CMIP shows all five
locations . Also note that on page 25 SW-DP is listed as SW-
DB.
Note the statement on 1996 draft CMIP p. 24 that, "The CAP
also requires that monitoring for arsenic, CPAHs, PCBs and
TPH be conducted because these constituents remain in soil
above cleanup levels . " This is why PCBs and chromium must
added to the groundwater monitoring as well .
Cover Monitoring
As noted in the detailed comments, the cover should be
monitored twice a year, and as necessary after storm events.
Submittal of Appendices
Please submit a complete copy of the CMIP, including all
appendices, with the next draft.
Detailed Comments
Detailed comments by page number and paragraph are attached.
Ecology is not interested in a comment by comment response,
but would rather discuss all comments with PACCAR, then
evaluate how they have been addressed in the next draft.
Data Reporting
Development of efficient data reporting is of concern to
Ecology. Table 1 and Figures 1 and 2 are examples of
efficient tabular and graphical data presentations . The use
of normalized concentrations makes it conceptually simple to
compare analytical values to cleanup levels, although one
must bear in mind the varying hot-spot action levels .
Ecology will require a one page, graphical summary of
indicator chemical data for each of the lower sand, upper
sand, and surface water.
Detailed review of sampling data will be done using the
relational database.
i