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TAGM 4046 Table 3 - Organic Pesticides/Herbicides and PCBs

Table 3
Recommended soil cleanup objectives (mg/kg or ppm)
Organic Pesticides / Herbicides and PCBs
Contaminant
Partition
Coefficient,
Koc
Groundwater
Standards/
Criteria, Cw
(ug/l or ppb)		 a
Allowable
soil conc.,
Cs (ppm)		 b **
Soil cleanup
objectives
to protect
GW quality
(ppm)
USEPA Health Based (ppm)

Carcin-
ogens
Systemic
Toxicants


CRQL
(ppb)		 ***
Rec. Soil
Cleanup
Objective
(ppm)
Aldrin 96,000 ND (<0.01) 0.005 0.5 0.041 2 8 0.041
alpha- BHC 3,800 ND (<0.05) 0.002 0.2 0.111 N/A 8 0.11
beta - BHC 3,800 ND (<0.05) 0.002 0.2 3.89 N/A 8 0.2
delta - BHC 6,600 ND (<0.05) 0.003 0.3 N/A N/A 8 0.3
Chlordane 21,305 * 0.1 0.02 2.0 0.54 50 80 0.54
2,4-D 104 * 4.4 0.005 0.5 N/A 800 800 0.5
4,4'- DDD 770,000 * ND (<0.01) 0.077 7.7 2.9 N/A 16 2.9
4,4'-DDE 440,000 * ND (<0.01) 0.0440 4.4 2.1 N/A 16 2.1
4,4'-DDT 243,000 * ND (<0.01) 0.025 2.5 2.1 40 16 2.1
Dibenzo-P-dioxins (PCDD) 2,3,7,8 TCDD 1709800 0.000035 0.0006 0.06 N/A N/A N/A N/A
Dieldrin 10,700 * ND (<0.01) 0.0010 0.1 0.044 4 16 0.044
Endosulfan I 8,168 * 0.1 0.009 0.9 N/A N/A 16 0.9
Endosulfan II 8,031 * 0.1 0.009 0.9 N/A N/A 16 0.9
Endosulfan Sulfate 10,038 * 0.1 0.01 1.0 N/A N/A 16 1.0
Endrin 9,157 * ND (<0.01) 0.001 0.1 N/A 20 8 0.10
Endrin keytone N/A N/A N/A N/A N/A N/A N/A N/A
gamma - BHC (Lindane) 1,080 ND (<0.05) 0.0006 0.06 5.4 20 8 0.06
gamma - chlordane 140,000 0.1 0.14 14.0 0.54 5 80 0.54
Heptachlor 12,000 ND (<0.01) 0.0010 0.1 0.16 40 8 0.10
Heptachlor epoxide 220 ND (<0.01) 0.0002 0.02 0.077 0.8 8 0.02
Methoxychlor 25,637 35.0 9.0 900 N/A 400 80 ***
Mitotane N/A N/A N/A N/A N/A N/A N/A N/A
Parathion 760 1.5 0.012 1.2 N/A 500 8 1.2
PCBs 17,510 * 0.1 0.1 10.0 1.0 N/A 160 1.0 (Surface)
10 (sub-surf)
Polychlorinated dibenzo-
furans (PCDF)		 N/A N/A N/A N/A N/A N/A N/A N/A
Silvex 2,600 0.26 0.007 0.7 N/A 600 330 0.7
2,4,5-T 53 35 0.019 1.9 N/A 200 330 1.9

a Allowable Soil Concentration Cs = f x Cw x Koc

b Soil Cleanup Objective = Cs x Correction Factor (CF)

N/A Not available

* Partition coefficient is calculated by using the following equation:

log Koc = -0.55 log S + 3.64, where S is solubility in water in ppm.
Other Koc values are experimental values.

** Correction Factor (CF) of 100 is used as per TAGM #4046

*** As per TAGM #4046, Total VOCs < 10 ppm.

Note: Soil cleanup objectives are developed for soil organic carbon content (f) of 1% (5% for PCBs as per PCB Guidance Document), and should be adjusted for the actual soil organic carbon content if it is known.