HomeMy WebLinkAboutLUA98-019 CITY OF RENTON
CURRENT PLANNING DIVISION
AFFIDAVIT OF SERVICE BY MAILING
On the Ir1+31 day of " bvu.avr.i , 1998, I deposited in the mails of the United
States a sealed envelope containing . 1
S�ov-eltv‘c GcevMtilm^ �evv h `'
documents. This information was sent to:
Name Representing
Bar-v%_\ 1-0w‘6a‘rcl l't.sr South ev► vei 1
°f E c.ol 011
w A tcPT mc na-kumt 4E4ou-vcca
(Signa ure of Sender) Stv..ta.. . r_"'1 '
STATE OF WASHINGTON )
) SS
COUNTY OF KING )
I certify that I know or have satisfactory evidence thatndCin g‘t' �e PfL signed this
instrument and acknowledged it to be his/her/their free and voluntary act fo�the uses and purposes
mentioned in the instrument. /�
Dated: 1.,6-_ eD(I, j c� `�`i )
Notary PubIib in and for the State o ashington
Notary (Print) —
My appointment e
IMILYMOOvie
COIAMISSION EXPIRES 6/29/99
Project Nams: pL.L.‘e✓t Souvrd Soil �emeclta-h5vN
Project Number: LU Pr • qg. 019 , SME.
NOTARY.DCC
•
TIC �1 MP' # SHfL�ME MIAENfENT AGT
SUBSTANTIAL DEVELOPMENT PERMIT REQUIREMENT
February 12, 1998
EXEMPTION FILE NUMBER: LUA-98-019-SME
APPLICANT: Barry Lombard, Remediation Program Manager for
Puget Sound Energy
MER-045, 815 Mercer Street
Seattle, Washington 98109
OWNER: Washington Department of Natural Resources
SITE: 800 Park Avenue North
PROJECT NAME: Puget Sound Soil Remediation
PROPOSAL: The applicant seeks a Shoreline Exemption Permit to allow for the removal of soils not in
compliance with Washington State Model Toxics Control Act (MTCA) residential cleanup levels. Soil
removal will be performed in two areas and total removal volume of soils will be approximately 18 cubic
yards. Excavations will be less than two feet in depth and will not create a cut slope. Removed soils will
be loaded into trucks for sampling, off-site hauling, and disposal. Impacted soils will be recycled as daily
cover at the Columbia Ridge Landfill. Project duration is expected to be 8 weeks. The schedule is
dependent on receiving access and utility clearance from Boeing.
SEC-TWIJ-R: 32, 23 N, 5 E
WATER I3ODY/WETLAND: Lake Washington
An exemption from a Shoreline Management Substantial Development Permit is hereby granted on the
proposed project described on the attached form for the following reason(s):
X Normal maintenance or repair of existing structures or developments, including damage by
accident, fire or elements.
Improvements to fish habitat or passage pursuant to RCW 90.58.147.
Construction of the normal protective bulkhead common to single family residences.
Emergency construction necessary to protect property from damage by the elements.
Construction of a barn or similar agricultural structure on wetlands.
Construction or modification of navigational aids such as channel markers and anchor buoys.
Construction on wetlands by an owner, lessee, or contract purchaser of a single family
residence for his own use or for the use of his family which does not exceed a height of thirty-
five (35) feet above average grade level.
Construction value does not exceed $2,500 and project does not materially interfere with the
water or shorelines of the state.
Construction of a dock, including a community dock, designed for pleasure craft only,
for the private noncommercial use of the owner, lessee, or contract purchaser of single
and multiple family residences. This exemption applies if either: (A) In salt waters, the
fair market value of the dock does not exceed two thousand five hundred dollars; or (B)
in fresh waters, the fair market value of the dock does not exceed ten thousand dollars,
but if subsequent construction having fair market value exceeding two thousand five
hundred dollars occurs within five years of completion of the prior construction, the
subsequent construction shall be considered a substantial development for the
purpose of this chapter. .
Tr e proposed development is consistent or inconsistent with (check one):
CONSISTENT INCONSISTENT
X Policies of the Shoreline Management Act.
The guidelines of the Department of Ecology where no
Master Program has been finally approved or adapted by
the Department.
X The Master Program.
James C. Hanson, irector
evelopment Service Division
attachme'its: Vicinity Map /.
Project Narrative
cc: Bob Arthur
DOE
Attorney General
t
CITY OF RENTON. ff ,�O f 9 C
- �- L�� -
ovtf
DEVELOPMENT SERVICES DIVISION
•
MASTER APPLICATION
PROPERTY OWNER(S)
.` :PROJECT INFORMATION
Not. It thara I.roars th v onto baud owner,Sear mach Sr tddidonal
notarized Ma,IK Application for oath owner. PROJECT OR DEVELOPMENT NAME:
Limited Soil Removal of DNR Lease Are
NAME:Washington Department of Natural
Resources
PROPERTY/PROJECT ADORESS(S)/LOCATION:
ADDRESS: 111 Washington Street SE 800 Park Avenue, Renton
PO Box 47027
KING COUNTY ASSESSOR'S ACCOUNT NUMBER(S);
CITY: Olympia ZlP' 98504-7027 #07-23-05-9001
TELEPHONE NUMBER: ( 206 ) 840-4786 EXISTING LAND USES):
Industrial--Boeing Plant
APPLICANT.(If:other than owner)
PROPOSED LAND USES:
NAME: Mr. Barry Lombard This proposal involves limited soil
Program Manager--Remediation removal to expedite PSE ' s lease
termination w/ DNR on this property
COMPANY Of applicable!: Puget_S O u n d Energy EXISTING COMPREHENSIVE PLAN MAP DESIGNATION:
Employment Area--Industrial
ADDRESS: MER-0 4 S, 815 Mercer Street PROPOSED COMPREHENSIVE PLAN MAP DESIGNATION (it applicable):
N/A
CITY: Seattle ZIP: 98109 EXISTING ZONING:
IH--Heavy Industrial
[TELEPHONE NUMBER: ( 2 0 6 ) 2 2 4-2 1 0 2
PROPOSED ZONING (if applicable):
N/A
CONTACT:PERSO •
N
SITE AREA(SQ.FT. OR ACREAGE):
NAME: " Total site area : 3 acres
SamQ as �ppi_?.cantgsq.Proposed project site ���� ft .
COMPANY applicable): . PROJECT VALUE: :M '1 C) 199�
Approximately $21 , 300 s k_NNWNG
seto-
ADDRESS: IS THE SITE LOCATED IN THE AQUIFER PROTECTION AREA?
No
CITY: ZIP:
IS THE SITE LOCATED IN ANY OTHER TYPE OF ENVIRONMENTALLY
SENSITIVE AREA? Lake Washington is adjacent
to the site. The site is not identifi c
1TELEPHONENUMBER• , , as being part of a greenbelt, nor doe!
it have any identifiable wetlands withi.
its boundaries
_ e
LEGAL DESCRIPTI OF PROPERTY (Attach separate Beet if necessary)
See Attached Legal Description
II TYPE OF APPLICATION & FEES
Check all application types that apply--City staff will determine fees.
_ANNEXATION S SUBDIVISION:
— COMP. PLAN AMENDMENT $ -
REZONE $ _LOT LINE ADJUSTMENT $
—_ SPECIAL PERMIT $ _SHORT PLAT $
TEMPORA
RY ARY PERMIT $ _ TENTATIVE PLAT $
_ CONDITIONAL USE PERMIT $ _ PRELIMINARY PLAT $
_ SITE PLAN APPROVAL $ _ FINAL PLAT $
_GRADE & FILL PERMIT $
(NO. CU. YDS: ) PLANNED UNIT DEVELOPMENT: $
_ VARIANCE $
(FROM SECTION: I PRELIMINARY
WAIVER $ — FINAL
WETLAND PERMIT $
_ ROUTINE VEGETATION MOBILE HOME PARKS: $
MANAGEMENT PERMIT $
_ BINDING SITE PLAN S
SHORELINE REVIEWS:
SUBSTANTIAL DEVELOPMENT $
CONDITIONAL USE $
_ VARIANCE $
X EXEMPTION SNo Charge — ENVIRONMENTAL REVIEW $
REVISION $
AFFIDAVIT OF OWNERSHIP
I. (Print Nemo) C.{� �� .declare that I am(please check on.)_the owner of the property involved in this application..the
authorized representative o act for the property owner(please attach proof of authorisation).and that the foregoing statements and answers herein
contained and the information herewith submitted ere in ell respects true end correct to the beet of my knowledge and` belief.
Subscribed a sworn to before •.a Notary pubic.in Pnd
"C��,1 l'-l� \i-\ Nrr� for the State of :siding et
(Name of Ovlrner/Representatiiiive) I. ,on the 4-Jeir(r:
19
Gil. i�C')J �L co iw vu i i I e k Q;`_ 5
ATTEST: Subscrib .nc
(Signature f r/Representative) s
(Signatur of �j` �''l$ry
(This section to be completed by City Staff.) •
City Fife Number: A AAD BSP CAPS CAP U CPA CU-A CU-H ECF LLA
MHP FPUD FP PP R RVMP SA-A- SA-H : SHPL=A : SHPL-H SP< SM :SME TP V-A. V-B V-H . W
TOTAL FEES $ TOTAL`.POSTAGE PROVIDED: $
uee71:e.0 nor. rtiVISEO A/al
Legal Description
'"hat portion of the Harbor Area according to the Commissioners of Public
I_ands as shown on the Third Supplemental Map of Lake Washington Shore
Lands as recorded on September 14, 1965 lying in front of Section 8, Township
;'3 North, Range 5 East, W.M., in King County, Washington, and being more
particularly described as follows:
I;ommencing at the North one-quarter corner of said Section 8; thence North
139' 58' 32" West, along the North tine of the Northwest quarter of said Section 8
and the westerly extension thereof, a distance of 1721.40 feet to a concrete
Ionument; thence North 44• 14' 23" West, a distance of 680.06 feet to a point
on the Inner Harbor line of said Lake Washington Shore Lands Map, from which
Inner Harbor Angle Point No. 88, bears North 45' 45'00" East, a distance of
'?038.98 feet. said point being a concrete monument; thence South 45` 45' 00"
West, along said Inner Harbor Line, a distance of 661.86 feet and the True Point
of Beginning; thence continuing South 45. 45' 00" West, a distance of 708.53;
thence North 44' 15' 00' West. a distance of 326.17 feet: thence North 70 28'
08- East, a distance of 780.00 feet. more or less, to the True Point of Beginning.
PROJECT NARRATIVE
FOR SHORELINE EXEMPTION PERMIT APPLICATION
Current use of the site and existing improvements
The parcel is approximately 3 acres of upland area located southwest of the Shuffleton Steam Plant
facility. The upland area was created in 1966/1967, by placing approximately 150,000 cubic yards of
dredged sediment from Lake Washington in the area after using it as preload material in preparation for
building construction.
This parcel is currently part of a lease agreement between Washington Department of Natural Resources
(DNR) and Puget Sound Energy. The parcel is adjacent to Lake Washington to the northwest,
Shuffleton Steam plant facility to the northeast, and Boeing property along the remainder of the property.
The parcel is currently used and zoned as industrial property. A large area of Boeing and Puget Sound
Energy industrial lands surrounds it.
Adjacent Water Area or Wetlands and Nature of Existing Shoreline
This land abuts Lake Washington to the northwest. There are no wetlands adjacent to or on the parcel
referred to in this project. The existing lake shoreline is bulkheaded. A dock runs parallel to the
bulkhead along to Shuffleton Steam Plant property for approximately one-half of the length of the
bulkhead on that property, and extends only a few feet along the upland portion of the DNR Lease Area
parcel.
Number and location of existing structures and/or residential units (existing and potential) which
might have views obstructed as a result of the proposed project.
Not applicable. The proposed project includes remediation work only. No new construction is
proposed.
Proposed use of property and the scope of the proposed improvements.
The project name is the Limited Soil Removal for the upland portion of the DNR Lease Area. Puget
Sound Energy (PSE) proposes to perform limited soil removal activities that will be performed at the
upland portion of the DNR Lease Area. The purpose of the project is to remove soils not in compliance
with Washington State Model Toxics Control Act(MTCA) residential cleanup levels.
The removal will be conducted to expedite PSE's lease termination with the DNR. Additionally,this site
remediation would prepare the land for alternative functions as may be developed by the DNR. For
example, although the parcel is currently zoned for industrial land use, it is under consideration for a
recreational pathway running across the parcel, parallel to Lake Washington.
Project Details
There are two soil removal areas on the upland portion of the DNR Lease Area. As part of this project,
and prior to the removal action, additional characterization will be conducted to refine the soil
excavation area limits for each removal area. The estimated removal volume of the two removal sites
RECEIVED Puget Sound Energy
Limited Soil Removal Project Narrative
FEB1 0 1998 Upland Portion of DNR Lease Area
DEVELOPMENT PLANNING
CITY OF RENTON
•
combined is approximately 18 cubic yards. These estimates will be revised or confirmed as a result of
the additional characterization testing.
Groundwater will likely be encountered at only one of the excavation areas at approximately 3 to 5 feet
below ground surface. Because of the limited information on the depth of the groundwater at the
planned excavation time, and the unknown precipitation likely to occur during the time of work,
dewatering will be planned.
Because of the limited volume of soils involved in the removal action, no other removal alternatives
were evaluated besides excavation and off-site disposal at an appropriate landfill. The impacted soils are
to be directly loaded into trucks for sampling, off-site hauling, and disposal. The impacted soils will be
segregated to the extent possible to minimize combining PCB and PAH impacted soils. Based on
existing test results, soils excavated from these locations are not expected to be regulated or considered
waste material. Thus, the impacted soils will be recycled as daily cover at the Columbia Ridge Landfill.
Utility location, dewatering, stockpiling, excavation methods, backfilling, and other procedural measures
are detailed in the Final Limited Soil Removal Plan attached.
Total construction cost and fair market value of the proposed project
Total related costs for this project are approximated to be $21,300, assuming that the minimum volume
of soil removal and the minimum number of samples analyzed. Additional costs will be incurred if it is
necessary to remove additional soil to meet the project goals.
Proposed construction dates (beginning and end dates)
Permitting for the removal action does not appear to be necessary, due to exclusions in the City of
Renton Mining, Excavation, and Grading Ordinance. The planned excavations will be less than two feet
in depth,will not create a cut slope, and will not exceed the 50 cubic yard limit required for permitting,
(see Final Limited Soil Removal Plan attached). Thus, this project is exempt from a Grade and Fill
Permit.
Most of the project schedule is dependent on receiving access and utility clearance from Boeing. From
that date of utility clearance,the estimated cumulative schedule duration will be 8 weeks. A complete
break out of the scheduled activities may be seen in the attached Final Limited Soil Removal Plan.
Basis for Exemption Request
The Shoreline Permit exemption is sought for this project because this is normal maintenance or repair
of the site. Additionally, a Grade and Fill Permit for the removal action does not appear to be necessary,
due to exclusions in the City of Renton Mining,Excavation, and Grading Ordinance.
Puget Sound Energy
Limited Soil Removal Project Narrative
Upland Portion of DNR Lease Area
PUG ET
SOUND
ENERGY
February 4, 1998
City of Renton
Development Services Division
Municipal Building
200 Mill Avenue South
Renton, Washington 98055
•
Subject: Shoreline Exemption Application for Limited Soil Removal Project
Dear Permit Reviewer,
On behalf of Puget Sound Energy (PSE), I am submitting this application for an exemption
from a Shoreline Permit for a limited soil removal project that PSE is planning to complete.
As seen on the attached map, the proposal site is a portion of the property currently leased by
PSE from the Washington Department of Natural Resources (DNR). It is adjacent to PSE's
Shuftleton Steam Plant Facility. The area is currently used and zoned as industrial property.
The proposal consists of limited soil removal activities that will be performed at the upland
portion of the DNR Lease Area. The property currently is in compliance with Washington
State Model Toxics Control Act (MTCA) industrial cleanup levels. This project proposes the
removal of soils to bring the parcel in compliance with residential cleanup levels. Although
not required under the MTCA, PSE is cleaning up the property to satisfy the DNR and to
expedite the termination of the lease with the DNR.
There are two soil removal areas on the upland portion of the DNR Lease Area. The
estimated total volume of the soil to be removed is approximately 18 cubic yards. Permitting
for the removal action does not appear to be necessary, due to exclusions in the City of
Renton Mining, Excavation, and Grading Ordinance. The planned excavation quantities for
each area are below the 50 cubic yard limit required for permitting.
I have enclosed four copies each of the required master application, a project narrative, a
neighborhood detail map, and the site plan. Additionally, I have included the Final Limited
Soil Removal Plan for the DNR Lease Upland Area to more explicitly express the design of
this project. ������
Sincerely, FE& 10 1998
JtVELONiv,cN r P
Barry Lor. rd CiTy OF RAN o�NING
Program Manager—Remediation
Attachment
''ug( norL, • ,. VIA 93009-9734
FINAL
LIMITED SOIL REMOVAL
PLAN
DNR Lease Upland Area
Renton, Washington
Prepared for Puget Sound Energy
by Wineman Environmental Consulturg
November 7, 11 997
Project No. 97001
f Eb 1 CI 1998
cvtrNi PLANNING
u7r�G TY OF ReNTON
Wineman E inmental Consulting
Project No. 97001
CONTENTS
Paoe
1.0 INTRODUCTION
1.1 Purpose and Plan Organization I
1.2 Site Location and History I
1.3 Summary of Soil Investigation Findings
2.0 REMOVAL ACTION APPROACH
2.1 Additional Characterization Testing of Soil 3
2.2 Removal Plan Goals 4
2.3 Location and Estimated Volume of Soil 4
2.4 Evaluation of Removal Alternative 5
3.0 DESCRIPTION OF LIMITED SOIL REMOVAL 5
3.1 Site Preparation 5
3.2 Excavation of Impacted Soil 5
3.3 Hauling and Landfill Disposal o f Impacted Soil b
3.4 Dewatering Excavation Locations b
3.5 Backfilling, Compaction and Site Restoration 7
4.0 ON-SITE CONTROLS DURING LIMITED SOIL REMOVAL 8
4.1 Erosion Controls and Run-on/Runoff Controls 8
4.2 Dust and Air-Quality Controls 8
4.3 Access Controls 8
5.0 VERIFICATION TESTING AND REPORTING 8
5.1 Verification Sampling Frequency, Location, and Procedures 9
5.2 Sample Analysis and Quality Control 9
5.3 Field Documentation 9
5.4 Removal Memorandum 9
6.0 PERMITTING AND SCHEDULE I0
7.0 LIMITATIONS I 1
References 12
APPENDIX A-COST ESTIMATE A-I
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Wineman I onmental Consulting
Project No. 97001
1.0 INTRODUCTION
1.1 Purpose and Plan Organization
This limited soil Removal Plan (PLAN) describes limited soil removal activities that will he
performed at the DNR Lease Upland Area in Renton, Washington. The purpose of the removal is
to remove soils not in compliance with residential Washington State Model Toxics Control Act
(MTCA) cleanup levels. The removal action will be conducted as discussed with the Department
of Natural Resources (DNR), to expedite Puget Sound Energy's (PSE) lease termination.
Following completion of the removal action, a memorandum will be prepared describing the
activity and submitted to the DNR to document the removal.
This PLAN is organized as follows.
This section summarizes the site location, general site history, and previous soil investigation
findings; and provides the reason for the removal action, removal goals, the location and volume
of impacted soils and target schedule;
Section 2.0 and 3.0 describes the removal action approach and activities;
Section 4.0 describes the on-site controls to be provided during the removal action;
Section 5.0 documents the planned soil verification activities to be conducted and summarizes the
reporting to be conducted during the removal action;
Section 6.0 presents the schedule and permitting for the project; and
Appendix A presents a cost estimate for implementation of the removal action.
1.2 Site Location and History
The parcel is an approximately 3 acre upland area southwest of the Shuffleton Steam Plant
facility. This parcel is currently part of a lease agreement between DNR and Puget Sound
Energy. Currently Puget Sound Energy is in the process of terminating their lease agreement with
DNR, and the Boeing Company plans to establish a new lease agreement with DNR for this
upland portion of the DNR lease area (parcel).
The parcel abuts Lake Washington to the northwest, Shuffleton Steam plant facility is adjacent to
the northeastern tip of the parcel, and Boeing property surrounds the remainder of the parcel.
The parcel is currently used and zoned as industrial property. It is surrounded by a large area of
Boeing and Puget Sound Energy industrial lands. Continued industrial use is planned for the
parcel. A future recreational pathway may be developed, running across the parcel parallel to
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Wneman I Dnmental Consulting
Project No.97001
Lake Washington.
The upland area was created in 1966/1967. by placing approximately 150,000 cubic yards of
dredged sediment from Lake Washington in the area after using it as preload material (in
preparation for building construction).
1.3 Summary of Soil Investigation Findings
•
Previous investigations of this parcel include a soil study conducted by CH2M Hill (CH2M Hill,
1990) and a study conducted by Roy F Weston (Weston. 1997).
CH2M Hill Study
This study collected and analyzed 29 composite soil samples from the upper 36 inches of soil. Of
the 29 sampling locations, 19 were on the proposed trail, and 10 were adjacent to the proposed
trail. Soil samples were analyzed for TPH (418. 1 method), EP Tox Metals, and Washington State
Dangerous Waste tests for halogenated hydrocarbons and PAHs.
Three of the 29 samples had concentrations above 200 mg/kg for TPH. Two of these results
were determined to be marginal exceedences (210 and 260 mg/kg) because of the detection of 24
mg/kg TPH in the equipment blank sample. The third location had TPH concentrations of 470
mg/kg. On August 21, 1990, field observations indicated asphalt and concrete blocks, paper, and
plastic debris at this location. The authors concluded that the TPH concentrations detected at this
location were associated with the observed asphalt debris. All other locations had TPH
concentrations ranging from non-detectable to 180 mg/kg.
No halogenated hydrocarbons were detected in any sample and all PAHs were below the
threshold level of 1 percent. In addition, no EP Tox Metal detections were observed for arsenic,
barium, cadmium, chromium, Iead, mercury, selenium, silver, copper, and nickel. Zinc was
detected in two locations at concentrations below the threshold for designation. It was noted that
matrix spike recoveries for EP Tox metals were low indicating strong adsorption of the metals to
the soils (and thus limited potential for leaching).
The report concluded that none of the sampled soils would be state or federally regulated waste,
the results did not indicate the presence of environmental contamination, and that the site was
suitable for the construction of the Renton Recreational Trail. Although the analytical methods are
somewhat outdated, these results provide useful information regarding TPH concentrations in
surficial soils at the site; and the EP Tox metal results indicate that the concentrations of metals
present in site soils have a limited potential for leaching.
Weston Study
The results of the Weston investigation appear consistent with the CH2M Hill effort. The Weston
Page 2
Wineman E Dnmental Consulting
Project No.97001
sampling program (Weston, 1997) soil sampling was conducted at 23 locations using a 75-foot
grid. The sampling approach resulted in at least three sampling depths for each exploration
location. This depth distribution provided thorough sample coverage and is representative of the
conditions in the upper 15 feet of parcel soil, with emphasis on the surface soils (upper four feet)
Selected samples were analyzed for polychlorinated biphenyls (PCBs, 57 samples), polycyclic
aromatic hydrocarbons (PAHs, 47 samples), total petroleum hydrocarbons (TPH, 11 samples).
and 13 priority pollutant metals (antimony, arsenic, beryllium, cadmium, chromium, copper, lead.
mercury, nickel, selenium, silver, thallium, and zinc, 39 samples) (Table 1). Surface soils were
analyzed for all constituents except TPH. However, PAH analyses (a good indicator of petroleum
products) are well represented in surface samples (24 samples).
The Weston results are summarized below
• Diesel and oil range fractions represented 97 percent or more of the TPH composition in site
samples. TPH is present at three locations (all at a depth of 5 feet) above the MTCA Method
A cleanup level of 200 mg/kg (TPH concentrations of 755, 1,356, and 782 mg/kg),
• cPAHs are marginally above MTCA Method A residential cleanup level of 1 mg/kg at three
locations at a depth of five feet and one location at a depth of 10 feet, with a maximum
concentration of 2.7 mg/kg;
• PCBs were observed in site soils marginally above MTCA Method A residential cleanup levels
(I mg/kg) at two surface and one 5-foot depth locations, with a maximum concentration of
2.9 mg/kg; and
• Of the 39 soil locations evaluated for metals, only one surface soil location, SB-DNR-05 had
concentrations detected marginally above MTCA residential cleanup levels for direct contact
for three metals: lead, mercury, and chromium.
Further evaluation of the data using the three MTCA statistical compliance criteria (Wineman
Environmental Consulting, 1997) indicated that only PCBs and carcinogenic PAHs (at one
location each) are not in compliance with MTCA residential standards. All other constituents
detected in soil are in compliance with MTCA residential standards (Ecology, 1996 and 1997).
2.0 REMOVAL ACTION APPROACH
2.1 Additional Characterization Testing of Soil
Prior to conducting this removal action, additional characterization will be conducted to refine the
soil excavation area limits. Characterization samples will be collected as follows:
• Area SB-DNR-05 - Two samples will be collected at a distance of 20 and 40 feet between
the original sample point and the next nearest sample locations (except on the side nearest
the lake, two samples will be collected at distances of 10 and 20 feet, respectively). Each
sample will be a discrete sample manually collected from a depth interval of 0 to 6 inches.
Page 3
Wineman •onmental Consulting
Project No.97001
One duplicate sample will be collected for a total of nine samples. Five of these samples
(three 20-foot and one 10-foot samples and duplicate) will be analyzed for PCBs (the
remaining four will be retained and analyzed as needed).
• Area SB-DNR-14— Twelve samples will be collected on a grid pattern between the original
sample location and the next nearest sample locations (at 10. 20, and 30 feet away.
depending on the direction). One duplicate sample will be collected for a total of 13
samples. Each sample will be a discrete sample collected from a depth of 5 to 6.5 feet using
a geoprobe boring. . Five of these samples (four 10-foot samples and duplicate) will be
analyzed for PAHs (the remaining eight will be retained and analyzed as needed).
Sample collection procedures, analysis, quality control, and documentation will be consistent with
verification sampling procedures discussed below with the exception of sample numbering.
Samples will be numbered in accordance with the distance and direction from the original sample
location e.g. CS-DNR-05-E 10 (for the sample collected 10 feet to the east of original sample
Iocation SB-DNR-05).
2.2 Removal Plan Goals
Removal Plan Goals represent the chemical concentrations within a specific environmental media
to be attained through cleanup activities. Removal Goals at the parcel are conservatively based
on MTCA soil cleanup standards (WAC 173-340-740). The parcel is currently zoned for
industrial land use, and is under consideration for a recreational pathway. Additional information
on specific MTCA soil cleanup standards for the parcel are included in Technical Memorandum
No. 1 (Wineman Environmental Consulting, August 6, 1997).
Removal Action Goals are 1 mg/kg for both PCBs and PAHs.
2.3 Location and Estimated Volume of Soil
The removal action will consist of excavation and landfill disposal of soils containing PCBs and
cPAHs, at two separate locations (Weston sampling locations SB-DNR-05, and SB-DNR-14,
respectively). The estimated removal volumes are summarized below:
• Approximately 12 cubic yards of soils containing PCBs (maximum detected concentration of
2.9 mg/kg) will be removed through select excavation of one surface soil location (SB-DNR-
05 excavation: 25 foot by 25 foot by 0.5-foot area); and
• Approximately 6 cubic yards of soils containing cPAHs will be selectively removed from
location SB-DNR-14 at a depth of five feet below ground surface. Because groundwater in
borings drilled in January was encountered at a depth of 3 feet below ground surface,
dewatering of this excavation should be planned.
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Wineman E Dnmental Consulting
Project No. 97001
These volume estimates are based on available site characterization data. These estimates will be
revised and/or confirmed following receipt of the analytical results of the additional
characterization testing. However, even with additional testing, additional soil that may require
removal may be encountered during excavation and verification testing activities.
The identification and delineation of soil excavation areas was based on the results of'an
environmental investigation conducted by Weston for the Boeing Company (April. 1997).
Identification of the removal areas was based on the previously mentioned technical
memorandum, and further evaluation of the data using Ecology's MTCAStat program. following
discussions between DNR, Ecology, Boeing, and PSE held at a meeting on October 2, 1997.
2.4 Evaluation of Removal Alternative
Because of the limited volume of soils involved in the removal action, no other removal
alternatives were evaluated besides excavation and off-site disposal at an appropriate landfill.
3.0 DESCRIPTION OF REMOVAL ACTION
3.1 Site Preparation
The contractor will prepare the site for excavation of impacted soil. Preparation for soil
excavation will require the following work elements:
• An area will be prepared for stockpiling of excavated soils.
• The limits of each excavation area will be located and marked with spray paint by Wineman
Environmental Consulting.
• At location SB-DNR-I4, a depth of 5 feet of clean soil will be removed in a 35 by 35 foot
area (at the surface) maintaining a cut-slope of 1-foot horizontal to 1-foot vertical. This clean
overburden material should be stockpiled separately, in a nearby location and be maintained
for clean backfill material to be returned to the same location.
3.2 Excavation of Impacted Soil
Following site preparation, impacted soils will be excavated to the minimum limits shown in
section 2.2 above. A backhoe will be used to perform excavation. Clean overburden will be
stockpiled near location SB-DNR-14.
Utilities may be encountered, especially in the event that additional soils need to be removed to
meet Removal Action Goals. The contractor will be required to verify the locations and
elevations of all existing pipelines and utilities within 50 feet of planned excavations prior to
commencing excavation work, and take precautionary measures as necessary during excavation to
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Wineman Dnmental Consulting
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protect all active pipelines and utilities.
Once the minimum limits of excavation have been reached, verification soil testing will be
conducted in accordance with the Verification Soil Testing Plan presented in Section b 0
Additional soils may be removed over and above the minimum volume shown in section 2.2 above
if verification soil testing indicates that additional impacted soil exceeding Removal Action Goals
is present. The additional soils will be excavated in 5-foot horizontal and 1-foot vertical
increments (unless visual signs indicate otherwise) until verification soil testing indicates that
Removal Action Goals have been met.
Groundwater will likely be encountered at location SB-DNR-14 at approximately 3 to 5 feet
below ground surface, but not in the SB-DNR-05 excavation area. However, because of the
limited information on depth to groundwater at the planned excavation time and the unknown
precipitation Iikely to occur during the time of work, dewatering should be planned.
3.3 Hauling and Landfill Disposal of Impacted Soil
Impacted soils will be directly loaded into trucks for sampling, off site hauling and disposal. The
impacted soils will be segregated to the extent possible to minimize combining PCB and PAH
impacted soils. Based on existing test results, soils excavated from these locations are not
expected to be regulated.
Available soil quality data will be used to properly manifest and profile the soils for hauling and
landfill disposal. If additional data are required by the landfill facility, soils will be representatively
sampled (from the truck) and analyzed to provide adequate data. Based on existing test results, all
soils are expected to be identified as non-hazardous/non-dangerous waste and are anticipated to
be disposed of as clean cover material at Columbia Ridge landfill disposal facility.
3.4 Dewatering Excavation Locations
Excavation locations containing standing groundwater or surface water will be pumped. As
necessary, the contractor will pump collected water from existing excavations into a temporary
Baker Tank. The tank will be surrounded by a lined berm for secondary containment. All
collected wastewater will be handled by a PSE wastewater removal contractor.
The contractor will remove water from the excavations under the following conditions:
• To continue soil excavation below the local groundwater table elevation. Any standing water
will be pumped before proceeding with excavation activities;
• If water removal is required to minimize the moisture content of excavated soils;
• If water removal is required to collect the necessary bottom or side wall verification soil
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Wineman E mmental Consulting
Project No.97001
samples;
• To provide and maintain slope stability in excavation location side walls, and
• For proper backfill and compaction of the excavation location.
At any time during excavation activities, if free-floating product or sheen is visible on a water
surface, the contractor will use absorbent boom material and/or pads to contain and eliminate the
product or sheen.
3.5 Back filling, Compaction and Site Restoration
The clean overburden stockpile will be covered with plastic pending analytical results of
verification samples in the area where impacted soils were removed.
After verification that Removal Action Goals have been achieved, excavations will be backfilled to
their original surface elevations. The contractor will backfill the excavations with the clean
overburden material (previously excavated), and imported backfill material, meeting the following
preliminary backfill specification:
Imported soil backfill will be a granular material, free from weathered basalt or other weathered
rock, concrete, asphalt, wood, bark, or other extraneous material and chemical contamination,
and shall meet the following gradation requirements
Sieve Size Percent Passing
2-1/2" square 100
1/4" square 25 to 70
U.S. No. 40 40 max.
U.S. No. 200 5 max.
All percentages are by dry weight. Percent passing 1/4-inch, No. 40, and No. 200 sieves are
based on minus 3/4-inch fraction. That portion of backfill retained on a 1/4-inch square sieve shall
contain not more than 0.20 percent by weight of wood waste.
At a minimum, backfilling will occur in loose lifts not to exceed 12 inches. Measured density will
be no less than 92 percent of maximum density and no less than 95 percent of maximum density in
the top two lifts, in accordance with ASTM D 1557. The final grade elevation will be consistent
with the grade of the original location.
Final backfill (as specified above) surface shall be level with the base of adjacent ground surface,
or as directed by PSE. Backfilled areas will be restored to match pre-excavation surface
conditions and hydroseeded.
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4.0 ON-SITE CONTROLS DURING REMOVAL ACTION
The contractor will be responsible for cleaning up activities including daily activities, and an
accidental spills, leaks, or other discharges in accordance with their standard spill control and
cleanup procedures. The contractor will have the necessary materials on-site to conduct such
cleanup.
4.1 Erosion Controls and Run-on/Runoff Controls
Erosion and run-on and runoff control addresses the procedures, equipment, and materials
necessary to avoid erosion during excavation and stockpiling work. The contractor will be
required to address the diversion of storm water, soil berms, and the covering of soil stockpiles to
prevent erosion.
4.2 Dust and Air-Quality Controls
Dust and air-quality controls will be adhered to at all times during any on-site activity by the
contractor as follows:
• No significant visible dust release will be allowed. If, in the opinion of PSE, visible dust
release is occurring, the contractor will be shut down until dust control is restored to the
operation.
• Dust and other air emissions will be controlled by covering all stockpiled soil on the site.
4.3 Access Controls
The following engineering controls will be incorporated for site access control during all
remediation activities:
• Excavation and stockpile locations with exposed soils will be enclosed by an exclusion zone.
Only those individuals who are current with all state HAZWOPER health and safety
requirements and have read the contractor supplied project site health and safety plan will be
allowed to enter the exclusion zone.
• Vehicles and equipment in contact with excavated soils will be thoroughly cleaned prior to
leaving the exclusion zone.
5.0 VERIFICATION TESTING AND REPORTING
Verification soil testing results will be used to confirm that soils remaining following excavation
meet Removal Action Goals.
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Wineman I •onmental Consulting
Project No.97001
5.1 Verification Sampling Frequency, Location. and Procedures
Verification soil testing will consist of sampling and laboratory analysis of in-situ soils from the
bottom and sidewalls of the excavation zones. As indicated in the dewatering section (3 5) if
necessary the excavation will be adequately pumped out prior to collecting the bottom sample.
Samples will also be collected adjacent to the excavation area to confirm that the removal has
been adequate. Verification soil testing will also be conducted on soils as they are loaded into the
trucks for proper manifesting and disposal as required by the appropriate disposal facility
Five soil samples (four wall samples and one bottom sample) will be collected from each of the
two excavations. One QA/QC duplicate sample will also be collected in each of the two
excavations, resulting in a total of 12 samples.
Each verification soil sample will be a representative, discrete, grab sample collected from the
bottom and sidewalls of the excavation. Each sample will be placed into a laboratory-cleaned
glass jar, labeled, and then placed into a cooler for transport to the laboratory under chain of
custody protocols. Soil sampling equipment will be decontaminated between sampling events to
prevent cross contamination.
Verification soil samples will be labeled sequentially according to the applicable excavation area
and location, bottom (B) or wall (W), (e.g., VS-DNR-05-B-1).
5.2 Sample Analysis and Quality Control
Verification soil samples will be analyzed for PCBs (area—05), and PAHs (area-14). All
analytical testing will be conducted at North Creek Analytical laboratory which is certified by the
Washington State Department of Ecology.
Field Methods
The field personnel will use consistent sampling techniques and documentation protocol while
executing this work. Soil sampling will be completed using stainless steel equipment (spoons,
bowls, knives) which will be decontaminated between samples. The decontamination process will
consist of a detergent wash, tap water rinse, and deionized water wash-down. Rinse water will be
drummed and disposed of Samples will be collected in laboratory-supplied jars and held in
coolers with ice pending laboratory delivery.
Quality Assurance and Lab Report Review
Data packages will be checked for completeness upon receipt from the laboratory to ensure that
sample data and QA/QC information requested are present. A cursory level of review will be
made considering the following:
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Wineman ronmental Consulting
Project No.97001
• Holding times;
• Surrogate spike results,
• MS/MSD or MS/duplicate results;
• Method blanks; and
• Detection limits.
5.3 Field Documentation
At the end of the planned day of fieldwork. PSE's on-site representative will prepare a written
field report summarizing the activities observed during that day, as well as any recommendations
made or sampling performed. The field report will be reviewed and signed by the contractor.
Other field documents wiII include excavation and stockpile location diagrams. sample location
diagram, and chain of custody. The final copy of the field reports will be transmitted to PSE
5.4 Removal Action Memorandum
A Removal Action memorandum will be prepared following receipt of laboratory reports. The
memorandum will include a summary of activities, analytical results, and estimated volumes
associated with excavation, disposal, backfill and compaction activities.
This report will include a summary of the original MTCAStat evaluation to determine the
locations that were not in compliance. In addition, it will include a re-evaluation of the original
characterization data combined with the verification sample results to confirm MTCA compliance.
A draft report will be submitted for PSE's review. After review by PSE, the memorandum will be
finalized and appropriately distributed.
6.0 PERMITTING AND SCHEDULE
Permitting for the removal action does not appear to be necessary, due to exclusions in the City of
Renton Mining, Excavation, and Grading Ordinance (Chapter 10, Section 4-10-5(a)(4). The
planned excavation quantities for each area are below the 50 cubic yard limit required for
permitting. In addition, the planned excavation and backfill of clean soil will maintain the same
site topograhy.
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Most of the project schedule is dependent on receiving access and utility clearance from Boeing.
from that date the estimated cumulative schedule duration is as follows:
Activity Date/Duration
Prepare draft removal action plan October 6-17
Set up lab and contractors October 6-17
Weston sample and utility (non-Boeing) location I week
Additional Characterization Sampling 2 weeks
Laboratory analyses completed 4 weeks
Removal Action, Confirmation sampling results 5 weeks
Submit draft removal action memorandum 7 weeks
Final memorandum to DNR 8 weeks
The above estimated schedule is based on the understanding of site conditions as presented in this
report. Delays in the schedule may occur from unexpected conditions encountered at the site.
weather conditions, or based on contractor/client schedules and coordination.
7.0 LIMITATIONS
Services performed by Wineman Environmental Consulting have been provided 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. This Removal
Action Plan is not meant to represent a legal opinion. No other warranty, express or implied, is
made. This report is for the specific application to the referenced project and for the exclusive
use of PSE based on the available data.
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References
CH2M Hill, 1990. Boeing Renton Recreational Trail Soil Characterization Report. August 24.
1990.
Ecology, 1997. Interim Interpretive and policy Statement Cleanup of Petroleum Hydrocarbons
(TPH). Publication No. ECY97-600. January, 1997.
Ecology, 1996. MTCA Cleanup Levels and Risk Calculations (CLARC II) Update.. Publication
No. 94-145. February, 1996.
Weston, 1997. DNR Property Pre-Lease Assessment Investigation Report. Prepared by Roy F.
Weston for the Boeing Company, April, 1997.
Wineman Environmental Consulting, 1997. Review of DNR Pre-Lease Assessment Investigation
Report. Prepared for Puget Sound Energy, August, 1997.
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Wineman E Dnmental Consulting
Project No.97001
APPENDIX A
COST ESTIMATE
Wneman I onmental Consulting
Project No.97001
APPENDIX A
COST ESTIMATE
The estimated cost for the DNR Upland Lease area removal action is summarized in Tables A-I
and A-2 (estimated laboratory costs only). This cost estimate assumes the minimum volume of
soil removal and the minimum number of samples analyzed. Any changes to that approach will
increase the cost accordingly. The level of accuracy of this cost estimate is "Budgetary." as
defined by the American Association of Cost Engineers. These estimates do not constitute a bid
to conduct this work and should be used for budgetary planning only. The accuracy of a
Budgetary estimate is plus 30% and minus 15%. Hence, a 30% engineering contingency has been
applied to the cost estimate to arrive at the upper end of the accuracy range.
The estimated cost presented in Table A-1 is based on the minimum soil volumes contained in this
Removal Action Plan. These have been estimated by assuming that additional characterization
data will limit the removal volumes. The actual volume planned for removal will not be known
until the results of the additional characterization sampling are received. At that time, a final
estimated volume will be determined.
Additional costs will be incurred if it is necessary to remove additional soil to meet the project
goals. It is not possible to estimate the volume of additional soils that may require removal at this
time.
Page A-1
Table A-1 - Budgetary Cost Estimate Wineman Environmental Consulting
Removal Action Cost
Sheet 1 of 2
ITEM AND DESCRIPTION QUANTITY UNITS UNIT TOTAL COMMENTS SOURCE
COST COST ,
Direct Cost
Mobilization 1 $600 $600 Contractor mob demob,utility locate,1-l&S plan Olympus
Site Preparation for Soil Excavation 46 cy $10 $463 Excavation and stockpiling of 5 feet of clean soil in area 14 Glacier
Excavation/Stockpiling 18 cy $12 $216 Assumes limited or no utilities interference Glacier
PCB%cPAII Soil Hauling and Disposal(11 27 tons $40 $I,080 Assumes comparable cPAII and PCB concentrations PSE
Dewatering Excavation Locations 0.5 day $500 $250 Includes Baker tank rental Glacier
Backfilling and Compaction-Onsite Material 46 cy $5 $231 Onsite soil backfill Glacier
Backfilling and Compaction-Imported Material 18 cy $20 $360 Imported soil backfill Glacier
Erosion Control Measures 1 I.S $500 $500 Installation of has bales and filter fence to protect Lake Assumed
Hydroseeding 114 sv $2 $228 Assuming site is not paved Assumed
Total Direct Cost $3 928
Construction Observation SO Included in sampling costs
Soil Testing'''
In-Situ Characterization Testing(Areas-05&-14) $3,656 From"fable A-2
Post-Excavation In-Situ Testing(Areas-05&-14) $3,568 Clean Overburden does not need testing From Table A-2
Disposal Characterization Testing $153 Per Columbia Ridge B From Table A-2
Water Handling(" $1,500 Does not include permitting agency interaction PSE
Removal Action Memorandum 1 $3,600 Assumes 40 hours for draft and final Assumed
Total Indirect Cost $12 477
Total Baseline Costs $16,405
Contingency(30%) $4 922
TOTAL BASELINE COST W/CONTINGENCY S21,300
Notes
tl' All soils will be disposed of as"beneficial reuse as an alternate daily cover at Columbia Ridge Landfill"
(3') Minimum number of samples and analytical methods
`31 Cost of$1500 assumes 2.000 gallons of water handled bn a wastewater removal contractor,assuming$0.75 per gallon under contract to PSE
Assumed soil bulk density of 1.5 tons cy
Cost estimate assumes characterization and excavation can each be completed in an 8-hour day_
Cost estimate accuracy is plus 30°o and minus 15"o.
C:Wly Documents\W EC\jobs\PUGET\970011IDnrcost.xlsjTable A-1
Table A-1
Table A-2 - Budgetary Cost Estimate Wineman Environmental Consulting
Sampling and Analysis Cost
Sheet 2 of 2
ITEM AND DESCRIPTION QUANTITY UNITS UNIT COST TOTAL COS-COMMENTS SOURCE
ui
Excavation Area Characterization Testing
Pre-Excavation In-Situ Testing(Areas-05&-14)
Labor 12 hrs $58 $ 696 Field effort WEC Rate Schedule
Expenses 1 days $1,650 $ 1,650 Field Equipment Cascade-Geoprobe
Laboratory
PCBs 5 each $62 $ 310 10-day turn-around time North Creek Analytical
PAHs 5 each $200 $ 1,000 10-day turn-around time North Creek Analytical
Mimimum In-Situ Testing Cost(Areas-05&-14) $ 3,656
Excavation Area Verification Testing
Post-Excavation In-Situ Testing(Areas-05&-14)
Labor 12 hrs $58 $ 696 Field effort WEC Rate Schedule
Expenses 1 days $100 $ 100 Field Equipment WFC Rate Schedule
Laboratory
PCBs 6 each $11 I $ 666 48 hour turn-around-time North Creek Analytical
PAHs 6 each $351 $ 2,106 48 hour turn-around-time North Creek Analytical
Mimimum Verification Testing Cost(Areas-05&-14) $ 3,568
Disposal Characterization Testing(18 cy)
Labor 0 hrs $58 $ - Included in Above WEC Rate Schedule
Expenses 0 days $0 $ - Included in Above WFC Rate Schedule
Laboratory
PCBs 0 each $11 I $ - 48 hour turn-around-time North Creek Analytical
PAHs 0 each $351 $ - 48 hour turn-around-time North Creek Analytical
TCLP(Pb,Cr) I each $153 $ 153 48 hour turn-around-time North Creek Analytical
Minimum Disposal Characterization Testing Cost(18 cy) $ 153
TOTAL MINIMUM TESTING COST $ 7,377
Notes
'f'Minimum number of samples and analytical methods
C:\My Documents\WEC1jobs\pUGET1970011[Dnrcost.xls)Table A-1
Table A-2