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REPORT REPORT MAXIMUM CONCENTRATION RECOMMEN CLEAN-UP MCL/ RECOMMENDED CLEAN-UP DATE TITLE, ENCOUNTERED DED LEAD GOALS SMCL GOALS FOR THIS SITE ICLEINFELDER. AGENCY (SOIL) .(DRINKING FILE NUMBER WATER) AND SITE RIYTION 2/24/97 "Lm, ase II As=53 mg/kg(TTLC)in one isolated PHS/8HD arsenic(soil): not applicable arsenic(soil)=220 mg/kg Soi Assessment, sample(ND<I.0 mg/L in the STLC TTLC=500 barium(soil)=5,300 mg/kg Former Waste analysis) This phase of mg/kg, RG-rSTLC= ) co soil 2,800 m mg/L, PRG-r(nc) d(s (soil)= 8/k8 Water Pond a=560 mg/kg(TTLC)in one work is =220 mg/kg lead(soil)=400 mg/kg Bottoms..." isolated sample(all other samples unrelated to the zinc(soil)=5,000 mg/kg (File 20-3978- roughly an order of magnitude less); pond closure barium(soil): TTLC=10,000 OZWR4)Aand the same elevated sample contained (which is within ngtkg STLC= 0.82 mg(L by STLC analysis the iurisdidion 100mg/L , PRG-i SCd=0.26 mg/kg(TTLC)in one of the RWOCR. (nc)=100,000 4-2 were obtained sample only mg/kg,PRG-r(nc) in the proposed Cr=79 mg/kg(TTLC)in an isolated =5300 mg/kg residential area to sample 0.20 mg/L(STLC)in the same copper(soil): assess potential sample from a depth of 3 ft TTLC=2,500 pond bottom Cc=28 mg/kg(TTLC)in one isolated mg/kg, STLC= analytes,however sample from a depth of 3 feet (n mgt, PRG-r (nc)=2,800 no pond bottoms Cu=860 mg/kg(TTLC)in one mg/kg,PRG-i(nc) were rumored to isolated sample(5.3 mg/L by STLC on =63,000 mg/kg have been placed the same sample(depth=3 ft) lead(soil)=1,000 in that area. The Pb=240 mg/kg(TTLC)and ND mg/kg (TTLC) remainder of the (<0.50 STLC)in an isolated sample and 5 mg1L • sample locations from a depth of 3 ft. (STLQ, PRG-r are in areas Hg=0.058 mg/kg(TTLC) (nc)=400 mg/kg, planned formg/kgmpJ non- Mo=690 mg/kg PRG g(nc)=1000 residential"use (TTLC)and ND(<0.20 mg/L(STLC) (e.g.commercial in an isolated sample from a depth of 3 zinc(soil)=5,000 or industrial). feet mg/kg (TTLC) Ni=40 mg/kg(TTLC) and 250 (S1'I.C), PRG-rRG-r V=32 mg/kg(TTLC) (nc) = 23,000 Zn=480 mg/kg(TTLC)and 3.8 mg/kg,PRG-i(nc) mg/L in an isolated sample =100,000 mg/kg 20-3978-O1.W35/2017L308 Page No.40 of 66 ®1997,Kleinfelder,Inc. August 8, 1997