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REPORT REPORT MAXIMUM CONCENTRATION RECOMMEN I CLEAN-UP MCL/ RECOMMENDED CLEAN-UP DATE TITLE, ENCOUNTERED -:DED LEAD GOALS SMCL GOALS IFOR THIS SITE KLEINFELDER AGENCY : (SOIL) (DRINKING FILE NUMBER WATER)AND SITE DESCRIPTION (continued (continued from Areas Proposed for Non-Residential Use Areas Proposed Areas Proposed Areas Proposed Areas Proposed for Non- from previous page) Marines 5-1 through 54,and 5-7): for Non- for Non- for Non- Residential Use Borings 5-1 previous Ba=65 mg/kg in soil Residential Use Residential Use Residential Use through 5-4,and 5-7): page) Cr=6.7 mg/kg in soil Borings 5-1 Borines 5-1 Borings 5-1 barium(soil)= 10,000 mg/kg through 5.4, through 5.4, total chromium(soil)=450 mg/kg Cc=4.9 mg/kg in soil through 5-4. and 5-7): and 5-7): cobalt(soil)=8,000 mg/kg 2/24/97 "Limited Phase H Cu= 11 mg/kg in soil and 5j): barium(soil): barium(water): copper(soil)=2,500 mg/kg Soil and PHS/EHD TTLC=10,000 PRG-tw=2.6 Groundwater Ba=0.44 mg(L in groundwater mg/kg, STLC= mg/L,CA-MCL= barium(water)=1.0 mg/L Assessment, Cu=0.0054 mg/L in groundwater 100 mg/L, PRG-i 1.0 mg/L,Fed- copper(water)= 1.0 mgt (nc)=100,000 MCL=2.0 mgt Septic Mo=0.034 mg/L to groundwater mg/kg,PRG-r(nc) molybdenum(water)=0.18 mg/L Systems...:. Ni=0.026 mg(L in groundwater =5300 mg/kg copper(water): nickel(water)=0.1 mg/L (File 20.3978- PRG-tw(nc)= Ol.WR5) total cbmmium 1400 mg(L,CA- (soil):PRG-r(ca) MCL=1.0 mg/L =210 mg/kg, Borings 5-1 PRG-i(ca)=450 molybdenum through 54 and mg/kg,TIY.0= (water):PRG-tw 5-7 were all 2,500 mg/kg,and (nc)=0.18 mg/L STLC=5 mg/L USEPA-IRIS= advanced in the 0.035 mg/L., factory complex cobalt(soil): USEPA-SNARL= area. This area is PRG-r(nc)= 0.040,there are no planned for"non- 4,600 mg/kg, California or • i' PRG-i(nc)= Federal MCLS or residential"use 97,000,TTLC= SMCLs (commercial or 8,000 mg/kg and industrial) STLC=80 mg/L nickel(water): CA-MCL=0.1 copper (soil): mg/L,USEPA- TTLC = 2,500 IRIS=0.14 mg/L, mg/kg, STLC = USEPA-SNARL= 25 mg/L, PRG-r 0.1 mg/L (nc) = 2,800 mg/kg,PRG-i(nc) =63,000 mg/kg 20-3978-0 1.W 35/2017L308 Page No.45 of 66 01997,Kleinfelder,Inc. August 8, 1997