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(continued)
Benzo(a)pyrene 50-32-8 0.1 ug/literd
Cadmium 7440-43-9 5 ug/litere
Chromium (Total) 7440-47-3 50 ug/literf
DDT 50-29-3 0.3 ug/literg
1,2 Dichloroethane (EDC) 107-06-2 5 ug/literh
Ethylbenzene 100-41-4 700 ug/literi
Ethylene dibromide (EDB) 106-93-4 0.01 ug/literj
Gross Alpha Particle Activity 15 pCi/literk
Gross Beta Particle Activity 4 mrem/yrl
Lead 7439-92-1 15 ug/literm
Lindane 58-89-9 0.2 ug/litern
Methylene chloride 75-09-2 5 ug/litero
Mercury 7439-97-6 2 ug/literp
MTBE 1634-04-4 20 ug/literq
Naphthalenes 91-20-3 160 ug/literr
PAHs (carcinogenic) See benzo(a)pyrened
PCB mixtures 0.1 ug/liters
Radium 226 and 228 5 pCi/litert
Radium 226 3 pCi/literu
Tetrachloroethylene 127-18-4 5 ug/literv
Toluene 108-88-3 1,000 ug/literw
Total Petroleum Hydrocarbonsx
[Note: Must also test for and meet cleanup levels for other petroleum components--see footnotes!]
Gasoline Range Organics
Benzene present in ground water 800 ug/liter
No detectable benzene in ground water 1,000 ug/liter
Diesel Range Organics 500 ug/liter
Heavy Oils 500 ug/liter
Mineral Oil 500 ug/liter
1,1,1 Trichloroethane 71-55-6 200 ug/litery
Trichloroethylene 79-01-6 5 ug/literz
Vinyl chloride 75-01-4 0.2 ug/literaa
Xylenes 1330-20-7 1,000 ug/literbb

Footnotes:



a Caution on misusing this table. This table has been developed for specific purposes. It is intended to provide conservative cleanup levels for drinking water beneficial uses at sites undergoing routine cleanup actions or those sites with relatively few hazardous substances. This table may not be appropriate for defining cleanup levels at other sites. For these reasons, the values in this table 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 this table do not necessarily mean the ground water must be restored to those levels at all sites. The level of restoration depends on the remedy selected under WAC 173-340-350 through 173-340-390.
b Arsenic. Cleanup level based on background concentrations for state of Washington.
c Benzene. Cleanup level based on applicable state and federal law (WAC 246-290-310 and 40 C.F.R. 141.61).
d Benzo(a)pyrene. Cleanup level based on applicable state and federal law (WAC 246-290-310 and 40 C.F.R. 141.61), adjusted to a 1 x 10-5 risk. If other carcinogenic PAHs are suspected of being present at the site, test for them and use this value as the total concentration that all carcinogenic PAHs must meet using the toxicity equivalency methodology in WAC 173-340-708(8).
e Cadmium. Cleanup level based on applicable state and federal law (WAC 246-290-310 and 40 C.F.R. 141.62).
f Chromium (Total). Cleanup level based on concentration derived using Equation 720-1 for hexavalent chromium. This is a total value for chromium III and chromium VI. If just chromium III is present at the site, a cleanup level of 100 ug/l may be used (based on WAC 246-290-310 and 40 C.F.R. 141.62).
g DDT (dichlorodiphenyltrichloroethane). Cleanup levels based on concentration derived using Equation 720-2.
h 1,2 Dichloroethane (ethylene dichloride or EDC). Cleanup level based on applicable state and federal law (WAC 246-290-310 and 40 C.F.R. 141.61).
i Ethylbenzene. Cleanup level based on applicable state and federal law (WAC 246-290-310 and 40 C.F.R. 141.61).
j Ethylene dibromide (1,2 dibromoethane or EDB). Cleanup level based on concentration derived using Equation 720-2, adjusted for the practical quantitation limit.
k Gross Alpha Particle Activity, excluding uranium. Cleanup level based on applicable state and federal law (WAC 246-290-310 and 40 C.F.R. 141.15).
l Gross Beta Particle Activity, including gamma activity. Cleanup level based on applicable state and federal law (WAC 246-290-310 and 40 C.F.R. 141.15).
m Lead. Cleanup level based on applicable state and federal law (40 C.F.R. 141.80).
n Lindane. Cleanup level based on applicable state and federal law (WAC 246-290-310 and 40 C.F.R. 141.61).
o Methylene chloride (dichloromethane). Cleanup level based on applicable state and federal law (WAC 246-290-310 and 40 C.F.R. 141.61).
p Mercury. Cleanup level based on applicable state and federal law (WAC 246-290-310 and 40 C.F.R. 141.62).
q Methyl tertiary-butyl ether (MTBE). Cleanup level based on federal drinking water advisory level (EPA-822-F-97-009, December 1997).
r Naphthalenes. Cleanup level based on concentration derived using Equation 720-1. This is a total value for naphthalene, 1-methyl naphthalene and 2-methyl naphthalene.
s PCB mixtures. Cleanup level based on concentration derived using Equation 720-2, adjusted for the practical quantitation limit. This cleanup level is a total value for all PCBs.
t Radium 226 and 228. Cleanup level based on applicable state and federal law (WAC 246-290-310 and 40 C.F.R. 141.15).
u Radium 226. Cleanup level based on applicable state law (WAC 246-290-310).
v Tetrachloroethylene. Cleanup level based on applicable state and federal law (WAC 246-290-310 and 40 C.F.R. 141.61).
w Toluene. Cleanup level based on applicable state and federal law (WAC 246-290-310 and 40 C.F.R. 141.61).
x Total Petroleum Hydrocarbons (TPH). TPH cleanup values have been provided for the most common petroleum products encountered at contaminated sites. Where there is a mixture of products or the product composition is unknown, samples must be tested using both the NWTPH-Gx and NWTPH-Dx methods and the lowest applicable TPH cleanup level must be met.
? Gasoline range organics means organic compounds measured using method NWTPH-Gx. Examples are aviation and automotive gasoline. The cleanup level is based on protection of ground water for noncarcinogenic effects during drinking water use. Two cleanup levels are provided. The higher value is based on the assumption that no benzene is present in the ground water sample. If any detectable amount of benzene is present in the ground water sample, then the lower TPH cleanup level must be used. No interpolation between these cleanup levels is allowed. The ground water cleanup level for any carcinogenic components of the petroleum [such as benzene, EDB and EDC] and any noncarcinogenic components [such as ethylbenzene, toluene, xylenes and MTBE], if present at the site, must also be met. See Table 830-1 for the minimum testing requirements for gasoline releases.
? Diesel range organics means organic compounds measured using NWTPH-Dx. Examples are diesel, kerosene, and #1 and #2 heating oil. The cleanup level is based on protection from noncarcinogenic effects during drinking water use. The ground water cleanup level for any carcinogenic components of the petroleum [such as benzene and PAHs] and any noncarcinogenic components [such as ethylbenzene, toluene, xylenes and naphthalenes], if present at the site, must also be met. See Table 830-1 for the minimum testing requirements for diesel releases.
? Heavy oils means organic compounds measured using NWTPH-Dx. Examples are #6 fuel oil, bunker C oil, hydraulic oil and waste oil. The cleanup level is based on protection from noncarcinogenic effects during drinking water use, assuming a product composition similar to diesel fuel. The ground water cleanup level for any carcinogenic components of the petroleum [such as benzene, PAHs and PCBs] and any noncarcinogenic components [such as ethylbenzene, toluene, xylenes and naphthalenes], if present at the site, must also be met. See Table 830-1 for the minimum testing requirements for heavy oil releases.
? Mineral oil means non-PCB mineral oil, typically used as an insulator and coolant in electrical devices such as transformers and capacitors measured using NWTPH-Dx. The cleanup level is based on protection from noncarcinogenic effects during drinking water use. Sites using this cleanup level must analyze ground water samples for PCBs and meet the PCB cleanup level in this table unless it can be demonstrated that: (1) The release originated from an electrical device manufactured after July 1, 1979; or (2) oil containing PCBs was never used in the equipment suspected as the source of the release; or (3) it can be documented that the oil released was recently tested and did not contain PCBs. Method B (or Method C, if applicable) must be used for releases of oils containing greater than 50 ppm PCBs. See Table 830-1 for the minimum testing requirements for mineral oil releases.
y 1,1,1 Trichloroethane. Cleanup level based on applicable state and federal law (WAC 246-290-310 and 40 C.F.R. 141.61).
z Trichloroethylene. Cleanup level based on applicable state and federal law (WAC 246-290-310 and 40 C.F.R. 141.61).
aa Vinyl chloride. Cleanup level based on applicable state and federal law (WAC 246-290-310 and 40 C.F.R. 141.61), adjusted to a 1 x 10-5 risk.
bb Xylenes. Cleanup level based on xylene not exceeding the maximum allowed cleanup level in this table for total petroleum hydrocarbons and on prevention of adverse aesthetic characteristics. This is a total value for all xylenes.


Table 740-1

Method A Soil Cleanup Levels for Unrestricted Land Uses.a

Hazardous Substance CAS Number Cleanup Level

Arsenic
7440-38-2
20 mg/kgb
Benzene 71-43-2 0.03 mg/kgc
Benzo(a)pyrene 50-32-8 0.1 mg/kgd
Cadmium 7440-43-9 2 mg/kge
Chromium
Chromium VI 18540-29-9 19 mg/kgf1
Chromium III 16065-83-1 2,000 mg/kgf2
DDT 50-29-3 3 mg/kgg
Ethylbenzene 100-41-4 6 mg/kgh
Ethylene dibromide (EDB) 106-93-4 0.005 mg/kgi
Lead 7439-92-1 250 mg/kgj
Lindane 58-89-9 0.01 mg/kgk
Methylene chloride 75-09-2 0.02 mg/kgl
Mercury (inorganic) 7439-97-6 2 mg/kgm
MTBE 1634-04-4 0.1 mg/kgn
Naphthalenes 91-20-3 5 mg/kgo
PAHs (carcinogenic) See benzo(a)pyrened
PCB Mixtures 1 mg/kgp
Tetrachloroethylene 127-18-4 0.05 mg/kgq
Toluene 108-88-3 7 mg/kgr
Total Petroleum Hydrocarbonss
[Note: Must also test for and meet cleanup levels for other petroleum components--see footnotes!]
Gasoline Range Organics
Gasoline mixtures without benzene and the total of ethylbenzene, toluene and xylene are less than 1% of the gasoline mixture 100 mg/kg
All other gasoline mixtures 30 mg/kg
Diesel Range Organics 2,000 mg/kg
Heavy Oils 2,000 mg/kg
Mineral Oil 4,000 mg/kg
1,1,1 Trichloroethane 71-55-6 2 mg/kgt
Trichloroethylene 79-01-6 0.03 mg/kgu
Xylenes 1330-20-7 9 mg/kgv
Footnotes:



a Caution on misusing this table. This table has been developed for specific purposes. It is intended to provide conservative cleanup levels for sites undergoing routine cleanup actions or for sites with relatively few hazardous substances, and the site qualifies under WAC 173-340-7491 for an exclusion from conducting a simplified or site-specific terrestrial ecological evaluation, or it can be demonstrated using a terrestrial ecological evaluation under WAC 173-340-7492 or 173-340-7493 that the values in this table are ecologically protective for the site. This table may not be appropriate for defining cleanup levels at other sites. For these reasons, the values in this table 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 this table do not necessarily mean the soil must be restored to these levels at a site. The level of restoration depends on the remedy selected under WAC 173-340-350 through 173-340-390.
b Arsenic. Cleanup level based on direct contact using Equation 740-2 and protection of ground water for drinking water use using the procedures in WAC 173-340-747(4), adjusted for natural background for soil.
c Benzene. Cleanup level based on protection of ground water for drinking water use, using the procedures in WAC 173-340-747 (4) and (6).
d Benzo(a)pyrene. Cleanup level based on direct contact using Equation 740-2. If other carcinogenic PAHs are suspected of being present at the site, test for them and use this value as the total concentration that all carcinogenic PAHs must meet using the toxicity equivalency methodology in WAC 173-340-708(8).
e Cadmium. Cleanup level based on protection of ground water for drinking water use, using the procedures described in WAC 173-340-747(4), adjusted for the practical quantitation limit for soil.
f1 Chromium VI. Cleanup level based on protection of ground water for drinking water use, using the procedures described in WAC 173-340-747(4).
f2 Chromium III. Cleanup level based on protection of ground water for drinking water use, using the procedures described in WAC 173-340-747(4). Chromium VI must also be tested for and the cleanup level met when present at a site.
g DDT (dichlorodiphenyltrichloroethane). Cleanup level based on direct contact using Equation 740-2.
h Ethylbenzene. Cleanup level based on protection of ground water for drinking water use, using the procedures described in WAC 173-340-747(4).
i Ethylene dibromide (1,2 dibromoethane or EDB). Cleanup level based on protection of ground water for drinking water use, using the procedures described in WAC 173-340-747(4), adjusted for the practical quantitation limit for soil.
j Lead. Cleanup level based on preventing unacceptable blood lead levels.
k Lindane. Cleanup level based on protection of ground water for drinking water use, using the procedures described in WAC 173-340-747(4), adjusted for the practical quantitation limit.
l Methylene chloride (dichloromethane). Cleanup level based on protection of ground water for drinking water use, using the procedures described in WAC 173-340-747(4).
m Mercury. Cleanup level based on protection of ground water for drinking water use, using the procedures described in WAC 173-340-747(4).
n Methyl tertiary-butyl ether (MTBE). Cleanup level based on protection of ground water for drinking water use, using the procedures described in WAC 173-340-747(4).
o Naphthalenes. Cleanup level based on protection of ground water for drinking water use, using the procedures described in WAC 173-340-747(4). This is a total value for naphthalene, 1-methyl naphthalene and 2-methyl naphthalene.
p PCB Mixtures. Cleanup level based on applicable federal law (40 C.F.R. 761.61). This is a total value for all PCBs.
q Tetrachloroethylene. Cleanup level based on protection of ground water for drinking water use, using the procedures described in WAC 173-340-747(4).
r Toluene. Cleanup level based on protection of ground water for drinking water use, using the procedures described in WAC 173-340-747(4).
s Total Petroleum Hydrocarbons (TPH). TPH cleanup values have been provided for the most common petroleum products encountered at contaminated sites. Where there is a mixture of products or the product composition is unknown, samples must be tested using both the NWTPH-Gx and NWTPH-Dx methods and the lowest applicable TPH cleanup level must be met.
? Gasoline range organics means organic compounds measured using method NWTPH-Gx. Examples are aviation and automotive gasoline. The cleanup level is based on protection of ground water for noncarcinogenic effects during drinking water use using the procedures described in WAC 173-340-747(6). Two cleanup levels are provided. The lower value of 30 mg/kg can be used at any site. When using this lower value, the soil must also be tested for and meet the benzene soil cleanup level. The higher value of 100 mg/kg can only be used if the soil is tested and found to contain no benzene and the total of ethylbenzene, toluene and xylene are less than 1% of the gasoline mixture. No interpolation between these cleanup levels is allowed. In both cases, the soil cleanup level for any other carcinogenic components of the petroleum [such as EDB and EDC], if present at the site, must also be met. Also, in both cases, soil cleanup levels for any noncarcinogenic components [such as toluene, ethylbenzene, xylenes, naphthalene, and MTBE], also must be met if these substances are found to exceed ground water cleanup levels at the site. See Table 830-1 for the minimum testing requirements for gasoline releases.
? Diesel range organics means organic compounds measured using method NWTPH-Dx. Examples are diesel, kerosene, and #1 and #2 heating oil. The cleanup level is based on preventing the accumulation of free product on the ground water, as described in WAC 173-340-747(10). The soil cleanup level for any carcinogenic components of the petroleum [such as benzene and PAHs], if present at the site, must also be met. Soil cleanup levels for any noncarcinogenic components [such as toluene, ethylbenzene, xylenes and naphthalenes], also must be met if these substances are found to exceed the ground water cleanup levels at the site. See Table 830-1 for the minimum testing requirements for diesel releases.
? Heavy oils means organic compounds measured using NWTPH-Dx. Examples are #6 fuel oil, bunker C oil, hydraulic oil and waste oil. The cleanup level is based on preventing the accumulation of free product on the ground water, as described in WAC 173-340-747(10) and assuming a product composition similar to diesel fuel. The soil cleanup level for any carcinogenic components of the petroleum [such as benzene, PAHs and PCBs], if present at the site, must also be met. Soil cleanup levels for any noncarcinogenic components [such as toluene, ethylbenzene, xylenes and naphthalenes], also must be met if found to exceed the ground water cleanup levels at the site. See Table 830-1 for the minimum testing requirements for heavy oil releases.
? Mineral oil means non-PCB mineral oil, typically used as an insulator and coolant in electrical devices such as transformers and capacitors, measured using NWTPH-Dx. The cleanup level is based on preventing the accumulation of free product on the ground water, as described in WAC 173-340-747(10). Sites using this cleanup level must also analyze soil samples and meet the soil cleanup level for PCBs, unless it can be demonstrated that: (1) The release originated from an electrical device that was manufactured after July 1, 1979; or (2) oil containing PCBs was never used in the equipment suspected as the source of the release; or (3) it can be documented that the oil released was recently tested and did not contain PCBs. Method B must be used for releases of oils containing greater than 50 ppm PCBs. See Table 830-1 for the minimum testing requirements for mineral oil releases.
t 1,1,1 Trichloroethane. Cleanup level based on protection of ground water for drinking water use, using the procedures described in WAC 173-340-747(4).
u Trichloroethylene. Cleanup level based on protection of ground water for drinking water use, using the procedures described in WAC 173-340-747(4).
v Xylenes. Cleanup level based on protection of ground water for drinking water use, using the procedures described in WAC 173-340-747(4). This is a total value for all xylenes.


Table 745-1

Method A Soil Cleanup Levels for Industrial Properties.a

Hazardous Substance CAS Number Cleanup Level
Arsenic 7440-38-2 20 mg/kgb
Benzene 71-43-2 0.03 mg/kgc
Benzo(a)pyrene 50-32-8 2 mg/kgd
Cadmium 7440-43-9 2 mg/kge
Chromium
Chromium VI 18540-29-9 19 mg/kgf1
Chromium III 16065-83-1 2,000 mg/kgf2
DDT 50-29-3 4 mg/kgg
Ethylbenzene 100-41-4 6 mg/kgh
Ethylene dibromide (EDB) 106-93-4 0.005 mg/kgi
Lead 7439-92-1 1,000 mg/kgj
Lindane 58-89-9 0.01 mg/kgk
Methylene chloride 75-09-2 0.02 mg/kgl
Mercury (inorganic) 7439-97-6 2 mg/kgm
MTBE 1634-04-4 0.1 mg/kgn
Naphthalene 91-20-3 5 mg/kgo
PAHs (carcinogenic) See benzo(a)pyrened
PCB Mixtures 10 mg/kgp
Tetrachloroethylene 127-18-4 0.05 mg/kgq
Toluene 108-88-3 7 mg/kgr
Total Petroleum Hydrocarbonss
[Note: Must also test for and meet cleanup levels for other petroleum components--see footnotes!]
Gasoline Range Organics
Gasoline mixtures without benzene and the total of ethylbenzene, toluene and xylene are less than 1% of the gasoline mixture 100 mg/kg
All other gasoline mixtures 30 mg/kg
Diesel Range Organics 2,000 mg/kg
Heavy Oils 2,000 mg/kg
Mineral Oil 4,000 mg/kg
1,1,1 Trichloroethane 71-55-6 2 mg/kgt
Trichloroethylene 79-01-6 0.03 mg/kgu
Xylenes 1330-20-7 9 mg/kgv

Footnotes:



a Caution on misusing this table. This table has been developed for specific purposes. It is intended to provide conservative cleanup levels for sites undergoing routine cleanup actions or for industrial properties with relatively few hazardous substances, and the site qualifies under WAC 173-340-7491 for an exclusion from conducting a simplified or site-specific terrestrial ecological evaluation, or it can be demonstrated using a terrestrial ecological evaluation under WAC 173-340-7492 or 173-340-7493 that the values in this table are ecologically protective for the site. This table may not be appropriate for defining cleanup levels at other sites. For these reasons, the values in this table 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 this table do not necessarily mean the soil must be restored to these levels at a site. The level of restoration depends on the remedy selected under WAC 173-340-350 through 173-340-390.
b Arsenic. Cleanup level based on protection of ground water for drinking water use, using the procedures in WAC 173-340-747(4), adjusted for natural background for soil.
c Benzene. Cleanup level based on protection of ground water for drinking water use, using the procedures described in WAC 173-340-747 (4) and (6).
d Benzo(a)pyrene. Cleanup level based on protection of ground water for drinking water use, using the procedures described in WAC 173-340-747(4). If other carcinogenic PAHs are suspected of being present at the site, test for them and use this value as the total concentration that all carcinogenic PAHs must meet using the toxicity equivalency methodology in WAC 173-340-708(8).
e Cadmium. Cleanup level based on protection of ground water for drinking water use, using the procedures described in WAC 173-340-747(4), adjusted for the practical quantitation limit for soil.
f1 Chromium VI. Cleanup level based on protection of ground water for drinking water use, using the procedures described in WAC 173-340-747(4).
f2 Chromium III. Cleanup level based on protection of ground water for drinking water use, using the procedures described in WAC 173-340-747(4). Chromium VI must also be tested for and the cleanup level met when present at a site.
g DDT (dichlorodiphenyltrichloroethane). Cleanup level based on protection of ground water for drinking water use, using the procedures described in WAC 173-340-747(4).
h Ethylbenzene. Cleanup level based on protection of ground water for drinking water use, using the procedures described in WAC 173-340-747(4).
i Ethylene dibromide (1,2 dibromoethane or EDB). Cleanup level based on protection of ground water for drinking water use, using the procedures described in WAC 173-340-747(4), adjusted for the practical quantitation limit for soil.
j Lead. Cleanup level based on direct contact.
k Lindane. Cleanup level based on protection of ground water for drinking water use, using the procedures described in WAC 173-340-747(4), adjusted for the practical quantitation limit.
l Methylene chloride (dichloromethane). Cleanup level based on protection of ground water for drinking water use, using the procedures described in WAC 173-340-747(4).
m Mercury. Cleanup level based on protection of ground water for drinking water use, using the procedures described in WAC 173-340-747(4).
n Methyl tertiary-butyl ether (MTBE). Cleanup level based on protection of ground water for drinking water use, using the procedures described in WAC 173-340-747(4).
o Naphthalenes. Cleanup level based on protection of ground water for drinking water use, using the procedures described in WAC 173-340-747(4). This is a total value for naphthalene, 1-methyl naphthalene and 2-methyl naphthalene.
p PCB Mixtures. Cleanup level based on applicable federal law (40 C.F.R. 761.61). This is a total value for all PCBs. This value may be used only if the PCB contaminated soils are capped and the cap maintained as required by 40 C.F.R. 761.61. If this condition cannot be met, the value in Table 740-1 must be used.
q Tetrachloroethylene. Cleanup level based on protection of ground water for drinking water use, using the procedures described in WAC 173-340-747(4).
r Toluene. Cleanup level based on protection of ground water for drinking water use, using the procedure described in WAC 173-340-747(4).
s Total Petroleum Hydrocarbons (TPH). TPH cleanup values have been provided for the most common petroleum products encountered at contaminated sites. Where there is a mixture of products or the product composition is unknown, samples must be tested using both the NWTPH-Gx and NWTPH-Dx methods and the lowest applicable TPH cleanup level must be met.
? Gasoline range organics means organic compounds measured using method NWTPH-Gx. Examples are aviation and automotive gasoline. The cleanup level is based on protection of ground water for noncarcinogenic effects during drinking water use using the procedures described in WAC 173-340-747(6). Two cleanup levels are provided. The lower value of 30 mg/kg can be used at any site. When using this lower value, the soil must also be tested for and meet the benzene soil cleanup level. The higher value of 100 mg/kg can only be used if the soil is tested and found to contain no benzene and the total of ethylbenzene, toluene and xylene are less than 1% of the gasoline mixture. No interpolation between these cleanup levels is allowed. In both cases, the soil cleanup level for any other carcinogenic components of the petroleum [such as EDB and EDC], if present at the site, must also be met. Also, in both cases, soil cleanup levels for any noncarcinogenic components [such as toluene, ethylbenzene, xylenes, naphthalene, and MTBE], also must be met if these substances are found to exceed ground water cleanup levels at the site. See Table 830-1 for the minimum testing requirements for gasoline releases.
? Diesel range organics means organic compounds measured using method NWTPH-Dx. Examples are diesel, kerosene, and #1 and #2 heating oil. The cleanup level is based on preventing the accumulation of free product on the ground water, as described in WAC 173-340-747(10). The soil cleanup level for any carcinogenic components of the petroleum [such as benzene, and PAHs], if present at the site, must also be met. Soil cleanup levels for any noncarcinogenic components [such as toluene, ethylbenzene, xylenes and naphthalenes], also must be met if these substances are found to exceed the ground water cleanup levels at the site. See Table 830-1 for the minimum testing requirements for diesel releases.
? Heavy oils means organic compounds measured using NWTPH-Dx. Examples are #6 fuel oil, bunker C oil, hydraulic oil and waste oil. The cleanup level is based on preventing the accumulation of free product on the ground water, as described in WAC 173-340-747(10) and assuming a product composition similar to diesel fuel. The soil cleanup level for any carcinogenic components of the petroleum [such as benzene, PAHs and PCBs], if present at the site, must also be met. Soil cleanup levels for any noncarcinogenic components [such as toluene, ethylbenzene, xylenes and naphthalenes], also must be met if found to exceed the ground water cleanup levels at the site. See Table 830-1 for the minimum testing requirements for heavy oil releases.
? Mineral oil means non-PCB mineral oil, typically used as an insulator and coolant in electrical devices such as transformers and capacitors, measured using NWTPH-Dx. The cleanup level is based on preventing the accumulation of free product on the ground water, as described in WAC 173-340-747(10). Sites using this cleanup level must also analyze soil samples and meet the soil cleanup level for PCBs, unless it can be demonstrated that: (1) The release originated from an electrical device that was manufactured after July 1, 1979; or (2) oil containing PCBs was never used in the equipment suspected as the source of the release; or (3) it can be documented that the oil released was recently tested and did not contain PCBs. Method B or C must be used for releases of oils containing greater than 50 ppm PCBs. See Table 830-1 for the minimum testing requirements for mineral oil releases.
t 1,1,1 Trichloroethane. Cleanup level based on protection of ground water for drinking water use, using the procedures described in WAC 173-340-747(4).
u Trichloroethylene. Cleanup level based on protection of ground water for drinking water use, using the procedures described in WAC 173-340-747(4).
v Xylenes. Cleanup level based on protection of ground water for drinking water use, using the procedure in WAC 173-340-747(4). This is a total value for all xylenes.


Table 747-1

Soil Organic Carbon-Water Partitioning Coefficient (Koc) Values: Nonionizing Organics.

Hazardous Substance Koc (ml/g)
ACENAPHTHENE 4,898
ALDRIN 48,685
ANTHRACENE 23,493
BENZ(a)ANTHRACENE 357,537
BENZENE 62
BENZO(a)PYRENE 968,774
BIS(2-CHLOROETHYL)ETHER 76
BIS(2-ETHYLHEXYL)PHTHALATE 111,123
BROMOFORM 126
BUTYL BENZYL PHTHALATE 13,746
CARBON TETRACHLORIDE 152
CHLORDANE 51,310
CHLOROBENZENE 224
CHLOROFORM 53
DDD 45,800
DDE 86,405
DDT 677,934
DIBENZO(a,h)ANTHRACENE 1,789,101
1,2-DICHLOROBENZENE (o) 379
1,4-DICHLOROBENZENE (p) 616
DICHLOROETHANE-1,1 53
DICHLOROETHANE-1,2 38
DICHLOROETHYLENE-1,1 65
trans-1,2 DICHLOROETHYLENE 38
DICHLOROPROPANE-1,2 47
DICHLOROPROPENE-1,3 27
DIELDRIN 25,546
DIETHYL PHTHALATE 82
DI-N-BUTYLPHTHALATE 1,567
EDB 66
ENDRIN 10,811
ENDOSULFAN 2,040
ETHYL BENZENE 204
FLUORANTHENE 49,096
FLUORENE 7,707
HEPTACHLOR 9,528
HEXACHLOROBENZENE 80,000
a-HCH (a-BHC) 1,762
&bgr;-HCH (&bgr;-BHC) 2,139
&ggr;-HCH (LINDANE) 1,352
MTBE 11
METHOXYCHLOR 80,000
METHYL BROMIDE 9
METHYL CHLORIDE 6
METHYLENE CHLORIDE 10
NAPHTHALENE 1,191
NITROBENZENE 119
PCB-Arochlor 1016 107,285
PCB-Arochlor 1260 822,422
PENTACHLOROBENZENE 32,148
PYRENE 67,992
STYRENE 912
1,1,2,2,-TETRACHLOROETHANE 79
TETRACHLOROETHYLENE 265
TOLUENE 140
TOXAPHENE 95,816
1,2,4-TRICHLOROBENZENE 1,659
TRICHLOROETHANE -1,1,1 135
TRICHLOROETHANE-1,1,2 75
TRICHLOROETHYLENE 94
o-XYLENE 241
m-XYLENE 196
p-XYLENE 311


Sources:

Except as noted below, the source of the Koc values is the 1996 EPA Soil Screening Guidance: Technical Background Document. The values obtained from this document represent the geometric mean of a survey of values published in the scientific literature. Sample populations ranged from 1-65. EDB value from ATSDR Toxicological Profile (TP 91/13). MTBE value from USGS Final Draft Report on Fuel Oxygenates (March 1996). PCB-Arochlor values from 1994 EPA Draft Soil Screening Guidance.



Table 747-2

Predicted Soil Organic Carbon-Water Partitioning Coefficient (Koc) as a Function of pH: Ionizing Organics. Hazardous Substance Koc Value (ml/g)
pH = 4.9 pH = 6.8 pH = 8.0
Benzoic acid 5.5 0.6 0.5
2-Chlorophenol 398 388 286
2-4-Dichlorophenol 159 147 72
2-4-Dinitrophenol 0.03 0.01 0.01
Pentachlorophenol 9,055 592 410
2,3,4,5-Tetrachlorophenol 17,304 4,742 458
2,3,4,6-Tetrachlorophenol 4,454 280 105
2,4,5-Trichlorophenol 2,385 1,597 298
2,4,6-Trichlorophenol 1,040 381 131


Source: 1996 EPA Soil Screening Guidance: Technical Background Document. The predicted Koc values in this table were derived using a relationship from thermodynamic equilibrium considerations to predict the total sorption of an ionizable organic compound from the partitioning of its ionized and neutral forms.


Table 747-3

Metals Distribution Coefficients (Kd).

Hazardous Substance Kd (L/kg)
Arsenic 29
Cadmium 6.7
Total Chromium 1,000
Chromium VI 19
Copper 22
Mercury 52
Nickel 65
Lead 10,000
Selenium 5
Zinc 62


Source: Multiple sources compiled by the department of ecology.




Table 747-4

Petroleum EC Fraction Physical/Chemical Values.



Fuel

Fraction
Equivalent

Carbon

Number1
Water

Solubility2

(mg/L)
Mol.

Wt.3

(g/mol)
Henry's

Constant4

(cc/cc)
GFW5

(mg/mol)
Density6

(mg/l)
Soil Organic

Carbon-Water

Partitioning

Coefficient

Koc7 (L/kg)

ALIPHATICS
EC 5 - 6 5.5 36.0 81.0 33.0 81,000 670,000 800
EC > 6 - 8 7.0 5.4 100.0 50.0 100,000 700,000 3,800
EC > 8 - 10 9.0 0.43 130.0 80.0 130,000 730,000 30,200
EC > 10 - 12 11.0 0.034 160.0 120.0 160,000 750,000 234,000
EC > 12 - 16 14.0 7.6E-04 200.0 520.0 200,000 770,000 5.37E
EC > 16 - 21 19.0 1.3E-06 270.0 4,900 270,000 780,000 9.55E
EC > 21 - 34 28.0 1.5E-11 400.0 100,000 400,000 790,000 1.07E
AROMATICS
EC > 8 - 10 9.0 65.0 120.0 0.48 120,000 870,000 1,580
EC > 10 - 12 11.0 25.0 130.0 0.14 130,000 900,000 2,510
EC > 12 - 16 14.0 5.8 150.0 0.053 150,000 1,000,000 5,010
EC > 16 - 21 19.0 0.51 190.0 0.013 190,000 1,160,000 15,800
EC > 21 - 34 28.0 6.6E-03 240.0 6.7E-04 240,000 1,300,000 126,000
TPH COMPONENTS
Benzene 6.5 1,750 78.0 0.228 78,000 876,500 62.0
Toluene 7.6 526.0 92.0 0.272 92,000 866,900 140.0
Ethylbenzene 8.5 169.0 106.0 0.323 106,000 867,000 204.0
Total Xylenes8 (average of 3) 8.67 171.0 106.0 0.279 106,000 875,170 233.0
n-Hexane9 6.0 9.5 86.0 74.0 86,000 659,370 3,410
MTBE10 50,000 88.0 0.018 88,000 744,000 10.9
Naphthalenes 11.69 31.0 128.0 0.0198 128,000 1,145,000 1,191


Sources:


1 Equivalent Carbon Number. Gustafson, J.B. et al., Selection of Representative TPH Fractions Based on Fate and Transport Considerations. Total Petroleum Hydrocarbon Criteria Working Group Series, Volume 3 (1997) [hereinafter Criteria Working Group].


2 Water Solubility. For aliphatics and aromatics EC groups, Criteria Working Group. For TPH components except n-hexane and MTBE, 1996 EPA Soil Screening Guidance: Technical Background Document.


3 Molecular Weight. Criteria Working Group.


4 Henry's Constant. For aliphatics and aromatics EC groups, Criteria Working Group. For TPH components except n-hexane and MTBE, 1996 EPA Soil Screening Guidance: Technical Background Document.


5 Gram Formula Weight (GFW). Based on 1000 x Molecular Weight.


6 Density. For aliphatics and aromatics EC groups, based on correlation between equivalent carbon number and data on densities of individual hazardous substances provided in Criteria Working Group. For TPH components except n-hexane and MTBE, 1996 EPA Soil Screening Guidance: Technical Background Document.


7 Soil Organic Carbon-Water Partitioning Coefficient. For aliphatics and aromatics EC groups, Criteria Working Group. For TPH components except n-hexane and MTBE, 1996 EPA Soil Screening Guidance: Technical Background Document.


8 Total Xylenes. Values for total xylenes are a weighted average of m, o and p xylene based on gasoline composition data from the Criteria Working Group (m= 51% of total xylene; o= 28% of total xylene; and p=21% of total xylene).


9 n-Hexane. For values other than density, Criteria Working Group. For the density value, Hawley's Condensed Chemical Dictionary, 11th ed., revised by N. Irving Sax and Richard J. Lewis (1987).


10 MTBE. USGS Final Report on Fuel Oxygenates (March 1996).



Table 747-5

Residual Saturation Screening Levels for TPH.
Fuel Screening Level (mg/kg)
Weathered Gasoline 1,000
Middle Distillates

(e.g., Diesel No. 2 Fuel Oil) 2,000
Heavy Fuel Oils

(e.g., No. 6 Fuel Oil) 2,000
Mineral Oil 4,000
Unknown Composition or Type 1,000

Note: The residual saturation screening levels for petroleum hydrocarbons specified in Table 747-5 are based on coarse sand and gravelly soils; however, they may be used for any soil type. Screening levels are based on the presumption that there are no preferential pathways for NAPL to flow downward to ground water. If such pathways exist, more stringent residual saturation screening levels may need to be established.

Table 749-1

Simplified Terrestrial Ecological Evaluation - Exposure Analysis Procedure under WAC 173-340-7492 (2)(a)(ii).a

Estimate the area of contiguous (connected) undeveloped land on the site or within 500 feet of any area of the site to the nearest 1/2 acre (1/4 acre if the area is less than 0.5 acre). "Undeveloped land" means land that is not covered by existing buildings, roads, paved areas or other barriers that will prevent wildlife from feeding on plants, earthworms, insects or other food in or on the soil.
1) From the table below, find the number of points corresponding to the area and enter this number in the box to the right.


















Area (acres) Points
0.25 or less 4
0.5 5
1.0 6
1.5 7
2.0 8
2.5 9
3.0 10
3.5 11
4.0 or more 12
2) Is this an industrial or commercial property?

See WAC 173-340-7490 (3)(c). If yes, enter a score of 3 in the box to the right. If no, enter a score of 1.
3) Enter a score in the box to the right for the habitat quality of the site, using the rating system shown belowb. (High = 1, Intermediate = 2, Low = 3)
4) Is the undeveloped land likely to attract wildlife? If yes, enter a score of 1 in the box to the right. If no, enter a score of 2. See footnote c.
5) Are there any of the following soil contaminants present:

Chlorinated dioxins/furans, PCB mixtures, DDT, DDE, DDD, aldrin, chlordane, dieldrin, endosulfan, endrin, heptachlor, benzene hexachloride, toxaphene, hexachlorobenzene, pentachlorophenol, pentachlorobenzene? If yes, enter a score of 1 in the box to the right. If no, enter a score of 4.
6) Add the numbers in the boxes on lines 2 through 5 and enter this number in the box to the right. If this number is larger than the number in the box on line 1, the simplified terrestrial ecological evaluation may be ended under WAC 173-340-7492 (2)(a)(ii).

Footnotes:



a It is expected that this habitat evaluation will be undertaken by an experienced field biologist. If this is not the case, enter a conservative score (1) for questions 3 and 4.
b Habitat rating system. Rate the quality of the habitat as high, intermediate or low based on your professional judgment as a field biologist. The following are suggested factors to consider in making this evaluation:
Low: Early successional vegetative stands; vegetation predominantly noxious, nonnative, exotic plant species or weeds. Areas severely disturbed by human activity, including intensively cultivated croplands. Areas isolated from other habitat used by wildlife.
High: Area is ecologically significant for one or more of the following reasons: Late-successional native plant communities present; relatively high species diversity; used by an uncommon or rare species; priority habitat (as defined by the Washington department of fish and wildlife); part of a larger area of habitat where size or fragmentation may be important for the retention of some species.
Intermediate: Area does not rate as either high or low.
c Indicate "yes" if the area attracts wildlife or is likely to do so. Examples: Birds frequently visit the area to feed; evidence of high use by mammals (tracks, scat, etc.); habitat "island" in an industrial area; unusual features of an area that make it important for feeding animals; heavy use during seasonal migrations.


Table 749-2

Priority Contaminants of Ecological Concern for Sites that Qualify for the Simplified Terrestrial Ecological Evaluation Procedure.a

Priority contaminant Soil concentration (mg/kg)
Unrestricted

land useb Industrial or

commercial site
METALSC
Antimony See note d See note d
Arsenic III 20 mg/kg 20 mg/kg
Arsenic V 95 mg/kg 260 mg/kg
Barium 1,250 mg/kg 1,320 mg/kg
Beryllium 25 mg/kg See note d
Cadmium 25 mg/kg 36 mg/kg
Chromium (total) 42 mg/kg 135 mg/kg
Cobalt See note d See note d
Copper 100 mg/kg 550 mg/kg
Lead 220 mg/kg 220 mg/kg
Magnesium See note d See note d
Manganese See note d 23,500 mg/kg
Mercury, inorganic 9 mg/kg 9 mg/kg
Mercury, organic 0.7 mg/kg 0.7 mg/kg
Molybdenum See note d 71 mg/kg
Nickel 100 mg/kg 1,850 mg/kg
Selenium 0.8 mg/kg 0.8 mg/kg
Silver See note d See note d
Tin 275 mg/kg See note d
Vanadium 26 mg/kg See note d
Zinc 270 mg/kg 570 mg/kg
PESTICIDES
Aldicarb/aldicarb sulfone (total) See note d See note d
Aldrin 0.17 mg/kg 0.17 mg/kg
Benzene hexachloride (including lindane) 10 mg/kg 10 mg/kg
Carbofuran See note d See note d
Chlordane 1 mg/kg 7 mg/kg
Chlorpyrifos/chlorpyrifos-methyl (total) See note d See note d
DDT/DDD/DDE (total) 1 mg/kg 1 mg/kg
Dieldrin 0.17 mg/kg 0.17 mg/kg
Endosulfan See note d See note d
Endrin 0.4 mg/kg 0.4 mg/kg
Heptachlor/heptachlor epoxide (total) 0.6 mg/kg 0.6 mg/kg
Hexachlorobenzene 31 mg/kg 31 mg/kg
Parathion/methyl parathion (total) See note d See note d
Pentachlorophenol 11 mg/kg 11 mg/kg
Toxaphene See note d See note d
OTHER CHLORINATED ORGANICS
Chlorinated dibenzofurans (total) 3E-06 mg/kg 3E-06 mg/kg
Dioxins (total) 5E-06 mg/kg 5E-06 mg/kg
Hexachlorophene See note d See note d
PCB mixtures (total) 2 mg/kg 2 mg/kg
Pentachlorobenzene 168 mg/kg See note d
OTHER NONCHLORINATED ORGANICS
Acenaphthene See note d See note d
Benzo(a)pyrene 30 mg/kg 300 mg/kg
Bis (2-ethylhexyl) phthalate See note d See note d
Di-n-butyl phthalate 200 mg/kg See note d
PETROLEUM
Gasoline Range Organics 200 mg/kg 12,000 mg/kg except that the concentration shall not exceed residual saturation at the soil surface.
Diesel Range Organics 460 mg/kg 15,000 mg/kg except that the concentration shall not exceed residual saturation at the soil surface.

Footnotes:



a Caution on misusing these chemical concentration numbers. These values have been developed for use at sites where a site-specific terrestrial ecological evaluation is not required. They are not intended to be protective of terrestrial ecological receptors at every site. Exceedances of the values in this table do not necessarily trigger requirements for cleanup action under this chapter. The table is not intended for purposes such as evaluating sludges or wastes.
This list does not imply that sampling must be conducted for each of these chemicals at every site. Sampling should be conducted for those chemicals that might be present based on available information, such as current and past uses of chemicals at the site.
b Applies to any site that does not meet the definition of industrial or commercial.
c For arsenic, use the valence state most likely to be appropriate for site conditions, unless laboratory information is available. Where soil conditions alternate between saturated, anaerobic and unsaturated, aerobic states, resulting in the alternating presence of arsenic III and arsenic V, the arsenic III concentrations shall apply.
d Safe concentration has not yet been established. See WAC 173-340-7492 (2)(c).


Table 749-3

Ecological Indicator Soil Concentrations (mg/kg) for Protection of Terrestrial Plants and Animalsa. For chemicals where a value is not provided, see footnote b.

Note: These values represent soil concentrations that are expected to be protective at any MTCA site and are provided for use in eliminating hazardous substances from further consideration under WAC 173-340-7493 (2)(a)(i). Where these values are exceeded, various options are provided for demonstrating that the hazardous substance does not pose a threat to ecological receptors at a site, or for developing site-specific remedial standards for eliminating threats to ecological receptors. See WAC 173-340-7493 (1)(b)(i), 173-340-7493 (2)(a)(ii) and 173-340-7493(3).

Hazardous Substanceb Plantsc Soil biotad Wildlifee
METALSf:
Aluminum (soluble salts) 50
Antimony 5
Arsenic III 7
Arsenic V 10 60 132
Barium 500 102
Beryllium 10
Boron 0.5
Bromine 10
Cadmium 4 20 14
Chromium (total) 42g 42g 67
Cobalt 20
Copper 100 50 217
Fluorine 200
Iodine 4
Lead 50 500 118
Lithium 35g
Manganese 1,100g 1,500
Mercury, inorganic 0.3 0.1 5.5
Mercury, organic 0.4
Molybdenum 2 7
Nickel 30 200 980
Selenium 1 70 0.3
Silver 2
Technetium 0.2
Thallium 1
Tin 50
Uranium 5
Vanadium 2
Zinc 86g 200 360
PESTICIDES:
Aldrin 0.1
Benzene hexachloride (including lindane) 6
Chlordane 1 2.7
DDT/DDD/DDE (total) 0.75
Dieldrin 0.07
Endrin 0.2
Hexachlorobenzene 17
Heptachlor/heptachlor epoxide (total) 0.4
Pentachlorophenol 3 6 4.5
OTHER CHLORINATED ORGANICS:
1,2,3,4-Tetrachlorobenzene 10
1,2,3-Trichlorobenzene 20
1,2,4-Trichlorobenzene 20
1,2-Dichloropropane 700
1,4-Dichlorobenzene 20
2,3,4,5-Tetrachlorophenol 20
2,3,5,6-Tetrachloroaniline 20 20
2,4,5-Trichloroaniline 20 20
2,4,5-Trichlorophenol 4 9
2,4,6-Trichlorophenol 10
2,4-Dichloroaniline 100
3,4-Dichloroaniline 20
3,4-Dichlorophenol 20 20
3-Chloroaniline 20 30
3-Chlorophenol 7 10
Chlorinated dibenzofurans (total) 2E-06
Chloroacetamide 2
Chlorobenzene 40
Dioxins 2E-06
Hexachlorocyclopentadiene 10
PCB mixtures (total) 40 0.65
Pentachloroaniline 100
Pentachlorobenzene 20
OTHER NONCHLORINATED ORGANICS:
2,4-Dinitrophenol 20
4-Nitrophenol 7
Acenaphthene 20
Benzo(a)pyrene 12
Biphenyl 60
Diethylphthalate 100
Dimethylphthalate 200
Di-n-butyl phthalate 200
Fluorene 30
Furan 600
Nitrobenzene 40
N-nitrosodiphenylamine 20
Phenol 70 30
Styrene 300
Toluene 200
PETROLEUM:
Gasoline Range Organics 100 5,000 mg/kg except that the concentration shall not exceed residual saturation at the soil surface.
Diesel Range Organics 200 6,000 mg/kg except that the concentration shall not exceed residual saturation at the soil surface.

Footnotes:



a Caution on misusing ecological indicator concentrations. Exceedances of the values in this table do not necessarily trigger requirements for cleanup action under this chapter. Natural background concentrations may be substituted for ecological indicator concentrations provided in this table. The table is not intended for purposes such as evaluating sludges or wastes.
This list does not imply that sampling must be conducted for each of these chemicals at every site. Sampling should be conducted for those chemicals that might be present based on available information, such as current and past uses of chemicals at the site.
b For hazardous substances where a value is not provided, plant and soil biota indicator concentrations shall be based on a literature survey conducted in accordance with WAC 173-340-7493(4) and calculated using methods described in the publications listed below in footnotes c and d. Methods to be used for developing wildlife indicator concentrations are described in Tables 749-4 and 749-5.
c Based on benchmarks published in Toxicological Benchmarks for Screening Potential Contaminants of Concern for Effects on Terrestrial Plants: 1997 Revision, Oak Ridge National Laboratory, 1997.
d Based on benchmarks published in Toxicological Benchmarks for Potential Contaminants of Concern for Effects on Soil and Litter Invertebrates and Heterotrophic Process, Oak Ridge National Laboratory, 1997.
e Calculated using the exposure model provided in Table 749-4 and chemical-specific values provided in Table 749-5. Where both avian and mammalian values are available, the wildlife value is the lower of the two.
f For arsenic, use the valence state most likely to be appropriate for site conditions, unless laboratory information is available. Where soil conditions alternate between saturated, anaerobic and unsaturated, aerobic states, resulting in the alternating presence of arsenic III and arsenic V, the arsenic III concentrations shall apply.
g Benchmark replaced by Washington state natural background concentration.


Table 749-4

Wildlife Exposure Model for Site-specific Evaluations.a

Plant
KPlant Plant uptake coefficient (dry weight basis)
Units: mg/kg plant/mg/kg soil
Value: chemical-specific (see Table 749-5)
Soil biota
Surrogate receptor: Earthworm
BAFWorm Earthworm bioaccumulation factor (dry weight basis)
Units: mg/kg worm/mg/kg soil
Value: chemical-specific (see Table 749-5)
Mammalian predator
Surrogate receptor: Shrew (Sorex)
PSB (shrew) Proportion of contaminated food (earthworms) in shrew diet
Units: unitless
Value: 0.50
FIRShrew,DW Food ingestion rate (dry weight basis)
Units: kg dry food/kg body weight - day
Value: 0.45
SIRShrew,DW Soil ingestion rate (dry weight basis)
Units: kg dry soil/kg body weight - day
Value: 0.0045
RGAFSoil, shrew Gut absorption factor for a hazardous substance in soil expressed relative to the gut absorption factor for the hazardous substance in food.
Units: unitless
Value: chemical-specific (see Table 749-5)
TShrew Toxicity reference value for shrew
Units: mg/kg - day
Value: chemical-specific (see Table 749-5)
Home range 0.1 Acres
Avian predator
Surrogate receptor: American robin (Turdus migratorius)
PSB (Robin) Proportion of contaminated food (soil biota) in robin diet
Unit: unitless
Value: 0.52
FIRRobin,DW Food ingestion rate (dry weight basis)
Units: kg dry food/kg body weight - day
Value: 0.207
SIRRobin,DW Soil ingestion rate (dry weight basis)
Units: kg dry soil/kg body weight - day
Value: 0.0215
RGAFSoil, robin Gut absorption factor for a hazardous substance in soil expressed relative to the gut absorption factor for the hazardous substance in food.
Units: unitless
Value: chemical-specific (see Table 749-5)
TRobin Toxicity reference value for robin (continued)