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Pecan Valley-LR 910829TECHNIQUE INC. CONSULTING SPECIALISTS IN: Environmental Assessments Environmental Engineering Soils & Foundation Engineering Construction Materials Testing Commercial & Industrial Inspection Excellence by Expertence August 29, 1991 Everfine / Gateway Partnership c/o Dan Dowdey & Associates 16250 Dallas Parkway Suite 100 Dallas, Texas 75248 Attn: Mr. Ron Fraze Re: Environmental Test Results Base of Excavation Pecan Valley Addition Coppell, Texas 90-366 Dear Mr. Fraze: Enclosed you will find copies of the most recent test results of soil samples removed from random locations in the bottom of the excavation on the above referenced project. All samples showed to be well within EPA Standards which will allow backfill activities to commence from Lodge Road to Station 7+00. I trust this is the information you require; if we may be of further assistance, please call upon us. Respectfully submitted, Geo-Techn~e, Inc. Louis "~6~g~is, P.E. President cc: Dan Dowdey & Associates Mr. Bill Anderson City of Coppell Mr. Larry Davis City of Coppell Ms. Linda Veronich 1939 East Continental Boulevard · Southlake, Texas 76092 (817) 329-0281 (800) 348-6308 · Fax (817) 488-1866 order $ 91-08-016 /--,. S&# BIlVXRGNiEBW'FAY. TOXXCOXJ)O'"' pige 2 TEST RESULTS BY SAMPLE g~uple: 0XA 91-366 ~3 ils00 ~oXXec~edz 08~19/9! Tes% p~scri~t£o~ ~ Lim~ Arsenic (2,651 0.053 Barium 128.414 0.002 cadmium 4.252 0.004 Chrom£u~ 16,008 0.007 Lead 9.755 0.042 Mercury <0.022 0.002 selenium (3.752 0.075 S%lver <0.350 0.007 Units pDm ppm ppm ppm AnalYzod 0fl/21/gl 08/21/9~ os/~1/9~ o8/~z/9~ os/~1/9~ o8/21/91 o8/2~/9~ DRB DRB DRB DRB DRB Simple: 02& 91~366 ~S 11~05 ut CoXXact~ 08/19/91 Test De!~crip~£on Resu%~ Limi~ Pesticides and PCB'S alphaL8~C BDL 660 gamma;-BHC (Lindane) BDL 660 beta-sHe BDL 660 Heptachlor BDL 660 delta...BHc BDL 660 Aldrin SOL 660 Heptachlor epoxide BDL 660 EBdosulfan I BDL 660 4~4'-DDE ~DL 660 Dieldrin SDL 660 Endri~ BDL 660 4,4'-DDD BDL 660 Endos~lfan II BDL 660 1,4'-DDT BDL 660 Endrin aldehyde BDL 660 Endosulfan sulfate BDL 660 Endrin ketone BDL 660 Methox¥chlor SOL 6~0 Chlordane BDL 660 Toxap[lene BDL 660 PCB-1016 BDL 3300 PCB-1221 BDL 3300 PCB-1232 SDL 3300 PCB-1242 BDL 3300 PCB-1248 BDL 3300 PCB-1254 BDL 3300 Unit~ A~alvzed 08/20/9~ 08/20/9~ os/~o/~[ 08/20/9[ oa/2o/9~ 08/20/91 08/20/9l 08/20/91 08/20/91 o8/20/91 08/20/9~ 08/20/9~ 08120/9[ 08/20/91 08/20/9! o8/2o/9~ 08/20/9~ 08/20/91 08/20/91 08/2o/91 08/20/91 08/20/91 o8/~o/9i 08/20/91 oe/2o/9z 08/20/91 KSH KSH KSH KSH KSH KSH KSH KSH KSH KSH KSH KSH KSH KSH KSH KSH KSH KSH KSH KSH KSH KSH KS~ ~CB-]260 ~ BDL 3300 ~ 08/20/~1 KSH order · 91-08-016 .~ Jg&W BHV~[i~OHI~e']~/, TOXTCOI.O~ P&~JO 3 08/27/~1 16:58 Dibu~ylchlorendate Limit units Mint Maxi Analyzed 8%, EmtpXe~ 03A 91-366 #S Il:Is om 08/19/91 Teat De:~ MtBE-B~-TOI-E~eno-X~la Methyl tart-Butyl Ether Benzene Toluene Ethyl Benzene Surrogates Bromofluo~ob~nzene Total Pmtroleum Hy4rocarbe R~Result Limit units BDL 0,042 mg/Kg 08/20/91 RWK BDL 0.002 mg/Kg 08/20/91 RWK 0.011 0,005 mg/Kg 08/20/91 RWK O.OOS 0.002 mg/Kg 08/20/91 RWK 0.018 0.009 mg/Kg O8/20/91 RWK 120 Min: 74 Max: 121 $8 I ppm 08/21/91 RWK $~ple~,04A 91-366 $6 11:30 Collected: 0E~19/91 Tegt De~!oriotion Total Petroleum Reeult Lim£~ Units ~ By 101 1 Pmm 08/21/91 RWK