HomeMy WebLinkAboutSWP272704(8) SEDIMENT AND SOIL
CHARACTERIZATION REPORT
Olympic Pipeline
Culvert Replacement Project
Prepared for
R.W. Beck, Inc.
1001 Fourth Avenue, Suite 2500
Seattle, WA 98154
and
City of Renton
Department of Public Works
200 Mill Avenue South
Renton, WA 98055
Prepared by
Herrera Environmental Consultants, Inc.
2200 Sixth Avenue, Suite 601
Seattle, Washington 98121
Telephone: 206/441-9080
July 7, 1997
Olympic Pipeline Culvert Replacement Project
Sediment and Soil Characterization Report
Introduction
The city of Renton is planning improvements to surface water drainage conveyances along SW
23rd Street at Lind Avenue SW. Improvements proposed for the east side of Lind Avenue are
shown in Figure 1, and improvements proposed for the west side of Lind Avenue are shown in
Figure 2. These improvements will require the removal of between 2 and 3 feet of sediments
which have accumulated in two 9-foot high by 14-foot wide culverts located beneath Lind
Avenue on the south side of 23rd Street. Sediments will also be removed from two ponds, one
located at the east end (upstream) and one at the west end (downstream) ends of these culverts.
In addition, two 18-inch culverts located immediately west of the west pond will be replaced
with a 10-foot wide by 3-foot high box culvert. This will require removal of soils in the vicinity
of three existing petroleum pipelines that are owned and used by the Olympic Pipe Line
Company for the transport of refined petroleum products (e.g., gasoline, diesel,jet fuel, and
kerosene).
Sediments and soils planned for removal have been sampled and characterized to determine the
disposal options available. This technical memorandum briefly describes methods of sample
collection and analysis, and presents and discusses the analytical results.
Methods
Two sediment samples and one soil sample were collected on June 4, 1997. One sediment
sample (SD-East) was collected from the sediment surface to a depth of 2 feet at two locations in
the pond adjacent to the east end (upstream) of each 14- by 9-foot culvert (see Figure 1). The
second sediment sample (SD-West) was collected from the sediment surface to a depth of 1 foot
at one location on the west side of the pond adjacent to the west end (downstream) of the 4- by 9-
foot culverts (see Figure 2).
The soil sample (S-1) was collected from five locations within the area proposed for excavation
and replacement of the 18-inch culverts (see Figure 2). At each location, soils were collected at a
depth interval of 3.5 to 4 feet below the ground surface, which is approximately equal to the
depth of the petroleum pipelines and the average depth of the 9-foot deep excavation required for
installation of the box culvert. Soils collected from each of the five locations were composited
into one soil sample (S-1) for analysis.
Sediment sample SD-East (Figure 1)was collected with a 2-inch diameter aluminum corer.
Sediment sample SD-West and the soil samples (Figure 2) were collected with a 2.5-inch
diameter stainless steel auger. Each sample was placed in a stainless steel bowl for thorough
July 7, 1997 = 1 Herrera Environmental Consultants
mixing with a spoon, and recording of physical characteristics (e.g., color, grain size, and the
presence of unusual characteristics such as a petroleum sheen or odor). Samples were then placed
in appropriate jars provided by the laboratory. The corer, auger, bowl, and spoon were
decontaminated prior to use according to the following procedure:
■ Scrub with phosphate-free detergent
■ Rinse several times with warm tap water
■ Rinse once with 10 percent reagent-grade nitric acid
■ Rinse once with reagent-grade propanol
■ Rinse several times with deionized water.
The three samples were stored with ice in a cooler and delivered to the laboratory with a chain-
of-custody form requesting the following analyses:
■ Washington total petroleum hydrocarbons-diesel (WTPH-D) extended by U.S.
Environmental Protection Agency (U.S. EPA) method 8015 modified
■ Total Resource Conservation and Recovery Act (RCRA) metals by U.S. EPA
methods 6010, 7470, and 7471
■ Toxicity characteristic leaching procedure (TCLP) metals by U.S. EPA
methods 1311, 6010, and 7470
• Semivolatile organic compounds by U.S. EPA method 8270
■ Organochlorine pesticides and polychlorinated biphenyls (PCBs) by U.S. EPA
method 8081.
The laboratory analyzed the samples as requested according to approved methods and quality
control procedures.
Results and Discussion
The sediment samples were described as dark brown organic silt underlain by gray silt. The
surface organic layer was approximately 1.5 feet thick in sample SD-East, and 0.5 feet thick in
sample SD-West. Sample SD-West exhibited an oil sheen and a strong petroleum odor similar to
diesel fuel. Sample SD-East did not exhibit a presence of petroleum. Soil sample S-1 was
described as gray silt, and did not exhibit the presence of petroleum. Laboratory tests of
moisture content indicate that the sediment samples were approximately 30 percent water and the
soil sample was approximately 25 percent water.
The laboratory reports and chain-of-custody records are provided in Appendix A. The laboratory
reports include quality control data which were briefly reviewed and found acceptable. The
analytical results are presented in Table 1.
July 7, 1997 2 Herrera Environmental Consultants
The analytical results indicate low concentrations of contaminants with the exception of high
hydrocarbon concentrations in sediment sample SD-West (i.e., 210 mg/kg for diesel range
hydrocarbons and 290 mg/kg for motor oil hydrocarbons). The results of all other analyses
indicated contaminant concentrations which are less than the Model Toxics Control Act (MTCA)
cleanup levels (Table 2) and recommended end use criteria for petroleum-contaminated soils
(Table 3). In addition, all analytical results are less than dangerous waste criteria for toxic
constituents (Table 4).
These results indicate that sediment removed from the pond located west of the 14- by 9-foot
culverts must be either treated for petroleum contamination (e.g., at a permitted facility such as
Holnam, Inc. in Seattle or TPS Technologies, Inc. in Tacoma) or disposed at a municipal landfill
(e.g., Cedar Hills landfill). These results also indicate that other excavated sediments and soils
may be appropriately disposed on land without treatment.
Likely sources of petroleum in the pond sediments include petroleum in stormwater runoff,
spills, or discharges of petroleum products near the site. Leakage from the petroleum pipelines
does not appear to be a source because the pipelines are not used to transport motor oil, and
refined petroleum products such as diesel were not detected in the soil sample collected adjacent
to the pipelines. Additional monitoring could be conducted prior to or during excavation of pond
sediments to further characterize the extent of petroleum contamination and disposal
requirements.
July 7, 1997 3 Herrera Environmental Consultants
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Locations of sediment sample SD-East(composite depth 0 to 2 feet)
Scale: 1 inch equals_30 feet
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Figure 1. Sediment sampling locations east of Lind Avenue SW in the city of Renton for
the Olympic Pipeline Culvert Replacement Project.
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Legend
a
Location of sediment sample SD-West(composite depth 0 to 1 foot)
g Locations of soil sample S71 (composite depth 3.5 to 4 feet)
Scale: 1 inch equals 30 feet
Datum: NAVD88
d
Figure 2. Sediment and soil sampling locations west of Lind Avenue SW in the city of
Renton for the Olympic Pipeline Culvert Replacement Project.
Table 1. Analytical results of sediment and soil samples collected for the
Olympic Pipeline Culvert Replacement Project.
Sediment Sediment Soil
Sample Sample Sample
SD-East SD-West S-1
Petroleum Hydrocarbons(mg/kg dry weight)
Diesel Range Hydrocarbons 16 210 6.8 U
Motor Oil 58 290 26
Total Metals(mg/kg dry weight)
Arsenic 7 U 6 U 6 U
Barium 64.6 63 75.3
Cadmium 0.6 0.3 0.2 U
Chromium 29.9 32.2 33.1
Lead I 10 10
Mercury 0.07 U 0.06 U 0.05 U
Selenium 7 U 7 6 U
Silver 0.4 U 0.4 U 0.3 U
TCLP Metals(mg/L)
Arsenic 0.05 U 0.05 U 0.05 U
Barium 0.250 B 0.272 B 0.580 B
Cadmium 0.002 U 0.002 0.002 U
Chromium 0.005 U 0.005 U 0.005 U
Lead 0.02 U 0.02 U 0.02 U
Mercury 0.0001 U 0.0001 U 0.0001 U
Selenium 0.05 U 0.05 U 0.05 U
Silver 0.003 U 0.003 U 0.003 U
Semivolatile Organic Compounds(ug/kg dry weight)
Phenol 180 U 190 U 180 U
Bis-(2-Chloroethyl)Ether 180 U 190 U 180 U
2-Chlorophenol 90 U 94 U 88 U
1,3-Dichlorobenzene 90 U 94 U 88 U
1,4-Dichlorobenzene 90 U 94 U 88 U
Benzyl Alcohol 450 U 470 U 440 U
1,2-Dichlorobenzene 90 U 94 U 88 U
2-Methylphenol 180 U 190 U 180 U
2,2'-Oxybis(1-Chloropropane) 90 U 94 U 88 U
4-Methylphenol 90 U 94 U 88 U
N-Nitroso-Di-N-Propylamine 180 U 190 U 180 U
Hexachloroethane 180 U 190 U 180 U
Nitrobenzene 90 U 94 U 88 U
Isophorone 90 U 94 U 88 U
2-Nitrophenol 450 U 470 U 440 U
2,4-Dimethylphenol 270 U 280 U 260 U
Benzoic Acid 900 U 940 U 880 U
bis(2-Chloroethoxy)Methane 90 U 94 U 88 U
2,4-DichlorophenoI 270 U 280 U 260 U
p9seddat.xls
July 7, 1997 Herrera Environmental Consultants
Table 1. Analytical results of sediment and soil samples collected for the
Olympic Pipeline Culvert Replacement Project (continued).
Sediment Sediment Soil
Sample Sample Sample
SD-East SD-West S-1
Semivolatile Organic Compounds(ug/kg dry weight)(continued)
1,2,4-Trichlorobenzene 90 U 94 U 88 U
Naphthalene 90 U 94 U 88 U
4-Chloroaniline 270 U 280 U 260 U
Hexachlorobutadiene 180 U 190 U 180 U
4-Chloro-3-methylphenol 180 U 190 U 180 U
2-Methylnaphthalene 90 U 94 U 88 U
Hexachlorocyclopentadiene 450 U 470 U 440 U
2,4,6-Trichlorophenol 450 U 470 U 440 U
2,4,5-Trichlorophenol 450 U 470 U 440 U
2-Chloronaphthalene 90 U 94 U 88 U
2-Nitroaniline 450 U 470 U 440 U
Dimethylphthalate 90 U 94 U 88 U
Acenaphthylene 90 U 94 U 88 U
3-Nitroaniline 540 U 560 U 530 U
Acenaphthene 90 U 94 U 88 U
2,4-Dinitrophenol 900 U 940 U 880 U
4-Nitrophenol 450 U 470 U 440 U
Dibenzofuran 90 U 94 U 88 U
2,6-Dinitrotoluene 450 U 470 U 440 U
2,4-Dinitrotoluene 450 U 470 U 440 U
Diethylphthalate 90 U 94 U 88 U
4-Chlorophenyl-phenylether 90 U 94 U 88 U
Fluorene 90 U 94 U 88 U
4-Nitroaniline 450 U 470 U 440 U
4,6-Dinitro-2-Methylphenol 900 U 940 U 880 U
N-Nitrosodiphenylamine 90 U 94 U 88 U
4-Bromophenyl-phenylether 90 U 94 U 88 U
Hexachlorobenzene 90 U 94 U 88 U
Pentachlorophenol 450 U 470 U 440 U
Phenanthrene 90 U 94 U 88 U
Carbazole 90 U 94 U 88 U
Anthracene 90 U 94 U 88 U
Di-n-Butylphthalate 90 U 94 U 88 U
Fluoranthene 90 U 190 88 U
Pyrene 90 U 190 88 U
Butylbenzylphthalate 90 U 94 U 88 U
3,3'-Dichlorobenzidine 450 U 470 U 440 U
Benzo(a)anthracene 90 U 94 U 88 U
bis(2-Ethylhexyl)phthalate 290 B 750 B 100 B
Chrysene 90 U 130 88 U
Di-n-Octyl phthalate 90 U 94 U 88 U
Benzo(b)fluoranthene 90 U 110 88 U
Benzo(k)fluoranthene 90 U 97 88 U
p9seddat.xls
July 7, 1997 Herrera Environmental Consultants
Table 1. Analytical results of sediment and soil samples collected for the
Olympic Pipeline Culvert Replacement Project (continued).
Sediment Sediment Soil
Sample Sample Sample
SD-East SD-West S-1
Semivolatile Organic Compounds(ug/kg dry weight)(continued)
Benzo(a)pyrene 90 U 94 U 88 U
Indeno(1,2,3-cd)pyrene 90 U 94 U 88 U
Dibenz(a,h)anthracene 90 U 94 U 88 U
Benzo(g,h,i)perylene 90 U 94 U 88 U
Pesticides/PCBs(ug/kg dry weight)
alpha-BHC 2.3 U 2.4 U 2.3 U
beta-BHC 2.3 U 2.4 U 2.3 U
delta-BHC 5.3 Y 2.4 U 2.3 U
gamma-BHC(Lindane) 2.3 U 2.4 U 2.3 U
Heptachlor 2.3 U 2.4 U 2.3 U
Aldrin 2.3 U 2.4 U 2.3 U
Heptachlor Epoxide 2.3 U 2.4 U 2.3 U
Endosulfan I 2.3 U 2.4 U 2.3 U
Dieldrin 4.5 U 4.8 U 4.5 U
4,4'-DDE 4.5 U 4.8 U 4.5 U
Endrin 4.5 U 4.8 U 4.5 U
Endosulfan II 4.5 U 4.8 U 4.5 U
4,4'-DDD 4.5 U 4.8 U 4.5 U
Endosulfan Sulfate 4.5 U 4.8 U 4.5 U
4,4'-DDT 4.5 U 4.8 U 4.5 U
Methoxychlor 23 U 24 U 23 U
Endrin Ketone 4.5 U 4.8 U 4.5 U
Endrin Aldehyde 4.5 U 4.8 U 4.5 U
gamma Chlordane 2.3 U 2.4 U 2.3 U
alpha Chlordane 2.3 U 2.4 U 2.3 U
Toxaphene 230 U 240 U 230 U
Aroclor 1016 45 U 48 U 45 U
Aroclor 1242 45 U 48 U 45 U
Aroclor 1248 45 U 48 U 45 U
Aroclor 1254 45 U 48 U 45 U
Aroclor 1260 45 U 48 U 45 U
Data qualifier definitions:
U Indicates compound was undetected at the listed concentration.
B Indicates possible/probable blank contamination. Flagged when the analyte is detected
in the sample as well as the method blank.
Y Analyte may be present at or below the listed concentration,but in the opinion of the
analyst confirmation was inadequate.
p9seddat.x1s
July 7, 1997 Herrera Environmental Consultants
Table 2. Model Toxics Control Act (MTCA) cleanup levels for soils.
Hazardous Substance Method A Cleanup Level Method A Cleanup Level
(residential)(mg/kg) (industrial)(mg/kg)
Arsenic 20.0 200.0
Benzene 0.5 0.5
Cadmium 2.0 10.0
Chromium 100.0 500.0
DDT 1.0 5.0
Ethylbenzene 20.0 20.0
Ethylene dibromide 0.001 0.001
Lead 250.0 1,000.0
Lindane 1.0 20.0
Methylene chloride 0.5 0.5
Mercury(inorganic) 1.0 1.0
PAHs(carcinogenic) 1.0 20.0
PCB mixtures 1.0 10.0
Tetrachloroethylene 0.5 0.5
Toluene 40.0 40.0
TPH(gasoline) 100.0 100.0
TPH(diesel) 200.0 200.0
TPH(other) 200.0 200.0
1,1,1 Trichloroethane 20.0 20.0
Trichloroethylene 0.5 0.5
Xylenes 20.0 20.0
a Caution on misusing method A tables. Method A tables have been developed for specific purposes. They are
intended to provide conservative cleanup levels for sites undergoing routine cleanup actions or those sites with
relatively few hazardous substances. The tables may not be appropriate for defining cleanup levels at other
sites. For these reasons, the values in these tables should not automatically be used to define cleanup levels
that must be met for financial,real estate, insurance coverage or placement, or similar transactions or purposes.
Exceedances of the values in these tables do not necessarily trigger requirements for cleanup action under
WAC 173-340.
Source: WAC 173-340.
July 7, 1997 9 Herrera Environmental Consultants
Table 3. Recommended end use criteria for petroleum-contaminated soilsa.
Analytical Soil Class(ppm)
Analyte Method 1 2 3 4
Heavy fuel WTPH-418.1 <60 60-200 200-2,000 >2,000
hydrocarbons mod.
(C24-C30)
Diesel WTPH-D <25 25-200 200-500 >500
(C 12-C24)
Gasoline WTPH-G <5 5-100 100-250 >250
(C6-C 12)
Benzene 8020 <0.005 0.005-0.5 :50.5 >0.5
Ethylbenzene 8020 <0.005 0.005-20 :�20 >20
Toluene 8020 <0.005 0.005-40 :540 >40
Xylenes(total) 8020 <0.005 0.005-20 >20
'Treatment is recommended for all class 3 and 4 soils.
Class 1 soil uses:
Any use which will not cause threat to human health or the environment
Class 2 soil uses:
Backfill at the cleanup site
Fill in commercial or industrial areas
Cover or fill in permitted landfills
Road subgrade or other road construction fill
Fill in or near wetlands, surface water, ground water, drinking water wells, or utility trenches is not
recommended. Use as residential topsoil is also not recommended.
Class 3 soil uses:
Treatment
Disposal at the original site(no solid waste disposal permit needed)
Road construction(no solid waste disposal permit needed)
Use or disposal in permitted municipal landfills
Permitted as a new petroleum contaminated soil(PCS)landfill
(An evaluation should be made to ensure that disposal will not cause a threat to human health or the
environment,e.g.,use near water bodies).
Class 4 soil uses:
Treatment
Disposal in a permitted municipal landfill
Permitted as a new PCS landfill
Source:
Guidance for Remediation of Petroleum Contaminated Soils,Washington State Department of Ecology Toxics
Cleanup Program,April 1994.
July 7, 1997 10 Herrera Environmental Consultants
Table 4. Dangerous waste criteria for constituents analyzed by the toxicity characteristic
leaching procedure (TCLP).
Toxic Constituent Maximum Extract Maximum Waste
Concentration(mg/L) Concentration'(mg/kg)
Arsenic 5.0 100
Barium 100.0 2,000
Benzene 0.5 10
Cadmium 1.0 20
Carbon tetrachloride 0.5 10
Chlordane 0.03 0.6
Chlorobenzene 100.0 2,000
Chloroform 6.0 120
Chromium 5.0 100
o-Cresol 200.0 4,000
m-Cresol 200.0 4,000
p-Cresol 200.0 4,000
Cresol 200.0 4,000
2,4-D 10.0 200
1,4-Dichlorobenzene 7.5 150
1,2-Dichloroethane 0.5 10
1,I-Dichloroethylene 0.7 14
2,4-Dinitrotoluene 0.13 2.6
Endrin 0.02 0.4
Heptachlor(and its epoxide) 0.008 0.16
Hexachiorobenzene 0.13 2.6
Hexachloro-1,3-butadiene 0.5 10
Hexachloroethane 3.0 60
Lead 5.0 100
Lindane 0.4 8
Mercury 0.2 4
Methoxychlor 10.0 200
Methyl ethyl ketone 200.0 4,000
Nitrobenzene 2.0 40
Pentachlorophenol 100.0 2,000
Pyridine 5.0 100
Selenium 1.0 20
Silver 5.0 100
Tetrachloroethylene 0.7 14
Toxaphene 0.5 10
Trichloroethylene 0.5 10
2,4,5-Trichlorophenol 400.0 8,000
2,4,6-Trichlorophenol 2.0 40
2,4,5-TP(Silvex) 1.0 20
Vinyl chloride 0.2 4
a Maximum waste concentration is based on wet weight assuming all of the constituent is extractable,which
is a worst-case assumption used when results of the toxicity characterisric leaching procedure are not available.
Source: WAC 173-303
July 7, 1997 11 Herrera Environmental Consultants