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Pecan Hollow/FP-CS 900719TICKLER FILE FOR: REVISED DATE: INITIATED BY: SUBJECT: REFERENCE: ( date ) ACTION ~EQUESTED: P~ ~3~. ~ ~~. (date) . ( ~s~o.~ .~o ~o~o~ ,~. ~ ~/~ ~ 7.19.9o A~- TECHNIQUE NCo CONSUl.TING SPECIAIASTS IN: ENVIIIONM ENTAi. ASSESSMENTS ENVIRONMENTAl. ENGINEERING SOILS & FOUNI)ATION ENGINI']EII. ING CONSTRUCTION MATEIIIAI~S TESTING COMMERCIAL & INI)IJSTIIIAI~ INSPECTI{)N "Excellence by Experiettce" LEVEL TWO ENVIRONMENTAL INVESTIGATION PECAN HOLLOW ADDITION CITY OF COPPELL COUNTY OF DALLAS STATE OF TEXAS PREPARED FOR: EiATEWAY., USA C/O CAMARO DEVELOPMENI' DALLAS, TEXAS JULY 2~ 1990 90-272 2 I ! E. Worth St. · (;ral.,vi,,c, Texas 76051 · Pho,n': 817 / 329-0281 Pac~e 1 ~'age 2 Page Page Page F'a,~e 5 '7 lntroouctory Let. ter ................................................. I ntrod~.~.ct i on ....................................... IntroOuctlon Cont 1 nue~ ......................................... Level 'lwo Ubject~ves ...................................... In~tlal Sl{e As~essmen~ ....................................... Excavation and Removal ....................................... Excavation anO Removal Con{ i hued ....................................... ExcavaCion and ~emovai Con~ i nue~ ........................................... Laboratory Testing ............................................ beneral Site Plar~ ....................................... E.F' ioxicity Metals ~.~-l ............................. Or,..-~an och 1 or 1 n at e~ Pesticides ............................. Mass Spectrometry Laboratory 5-1 EP I'oxlcity EP "['ox~city ~F' 'l'oxicity EF' Toxicity Or,ganoc~torinated Pesticides Mass Spectrometry Laboratory EP 'loxiclty Metals EF' '/"oxicity MetaLs -. ............................ Or,janochiorlnat. ed.. Pestlcloes Metals Metals Me%ais ~-4 Metals ~-5 S-5 5-5 5-6 b- / ~-? ............................. Mass SpectromeCry La~orator¥ 5-7 GEO- TECHNIQUE INC. SOILS & FOUNDATION ENGINEERS · CONSTRUCTION MATERIALS TESTING · FIELD INSPECTION · "Excellence by Experience" ,July 2, 1990 Gateway, USA c/o Camaro Development Company 16250 North Dallas Parkway Suite 200 Dallas, Texas 75248 Attn: Mr. Doyle Cameron Re: Debris Removal Supervision and Environmental Assessment Pecan Hollow Addition Coppell, Texas 90-272 Dear Mr. Cameron: We are pleased to present to you our level two environmental assessment report covering construction debris excavation and removal on the Pecan Hollow Addition, (former Oenco Nurseries Tract) located in the City of Coppell, Dallas County, Texas. The enclosed material describes the abatement activities necessary to bring the above referenced site into compliance with all standardm set forth by all affected environmental governing agencies. Again, it is our pleasure to serve you in our capacity and your complete satisfaction is our goal. Respectfully submitted, Geo-Technique, Inc. Louis L. Hargis, F'.E. Presi dent 211 E. Worth St. · Grapevine, Texas 76051 · Phone: 817/329-0281 GEO- TECHNIQUE NCo CONSULTING Slq'~(]ALISTS IN: ENVIRONMENTAI, ASSESSMENTS ENVIRONMENTAI, ENG IN EERING SOII,S & F(H~NI)ATI(~N EN(;INEEIIING CONSTI{Ii(]'I(}N MATERIAI,S TESTING COMMERCIAL & INI~USTRIAI, "Excellence by Experience" LEVEL TWO ENVIRONMENTAL INVESTIGATION PROdECT NAME: Pecan Hollow Addition CITY: Coppell COUN'¥Y: CLIENT: Camaro Development Dallas RESEARCHER: I)ATE: 07-02-90 STATE: Tex ass David W. Martin INTRODUCTION GENERALa Volumes have been written, including results of generous assortments of physical and analytical testing; soil borings and monitoring wells have been placed at strategic locations across the tract; test pits, to augment the findings of the borings have been dug and re-dug in order to produce samples for additional testing. Aerial and site photographs were produced and examined in order to depict changes in topography. Geological surveys were studied to estimate possible natural boundaries for undesirable fluids created by unclassified buried waste. Federal~ state and local agencies were contacted to determine if any statute violations were on file and finally, interviews with knowledgeable individuals were documented to further verify the mass, type and location of unclassified buried debris. Three independent surveys were performed on-site~ beginning with the sub-surface soils investigation performed by D-FW Engineering and Testing~ Inc., in January~ 1987s ~ollowed by an "Environmental Audit" produced by Staal~ Gardner and Dunnes Inc., January, 1989~ and finally~ "Preliminary Site Assessment" provided by Dames & Moore in January~ 1990. 211 E. Worth St. · Grapevine, Texas 76051 · Iq,om': I;17 / 329-O281 Pecan Hollow Addition Level Two Environmental June 2, 1990 Page Two Investigation All three reports were produced for separate and non-related clients, but, surprisingly enough, all reports reinforced, not contradicted, each other. These published documents are classified as "Level One" environmental studies. We commonly refer to them as "S.F.D.~s"; search, find and describe reports. The combined efforts of these reports located and defined the chemical composition of unclassified buried debris. The overall significance of these documents is that: ]'here was less actual buried debris than anticipaZed. D-FW~s report estimated as hi~h as 56,000 cubic yards of waste. A total of 50,000 cubic yards were actually hauled off-site. The chemical analysis of various elements proved non-hazardous. No noxious odors were present. The wa~er, both ground anO pond~ was ,~iven a clean bill of health accordin,~ to Texas Water Commission (TWC) standards. The toZal petroleum hydrocarbon test results~ conducted by three indepenOent engineerin.~ ~irms, revealed the total count to be less ~han the 100 parts per million maximum allowable level as set by ~he TWC. No citations, or assessments, were on record from any of the ,~overnmental agencies. The tract was not reported to be in violation of any federal, state or local statures. In conclusion, Level One S.F'.D. has been completed. Level Two assessmenZ and removal must be accomplished in order to reclaim %he land. Our position in the site reclamation process was to provide supervision and inspection of the excavation and removal process, in simple terms, the site must be cleaned up to our satisfaction. All known areas of debris must be excavated beyond previously sta~ed limits to remove any doubts o+ the extent of waste. The existing ponds must be drained, mucked and cleaned to a stable dry bottom prior to any backfill activities. In addition, the soils unOerying the ponds must be visually inspected, and the soils subjected to chemical analysis to determine if the soils are contaminated. Additionally, we were comforted by the positive test results from the previous reports and reasonably sure that no hazardous waste was anywhere on site. However., in order to remove any doubt, we would periodically procure additional random test samples and sub]ect them to our own analysis. Pecan Hollow Addition Level Two Environmental Investigation June 2, 1990 Pa.ge Three As mentioned in our preliminary report., prior to commencement on the present contract, clean-up activities were performed by Janco employees on all nursery related facilities. We re+er to a "General Site Plan", Plate 1, produced by Staal~, Gardner and Dunne, Inc.., January, 1989, on which they detail stock fields, shade houses, potting sheds, pesticide storage, and vehicle maintenance areas. All of these facilities had been removed at. the time of our investigation. Only a few shells and an old abandoned house remained. For convenience purposes, we will continue to refer to the "General Site Plan" provided by others., and au,gment this plan wit~ our own f 1 nd 1 ngs. James B. Arnold Construction Company was retained to provide equipment and personnel +or the performance of the Level Two abatement program. The excavated material was loaded onto trucks supplied by D & D TransportatiOn Company, and transported to the BRI Landfill in Lewisville, Texas. Actual load counts were tabulated anO recorded during all p~ases of the excavation activities. Each load was documente~ at the job site, and receipts were issued anO collected at the land~ill. All o~ the excavated materials were removed ~rom site. Work commenced on April 5, 1990, on the east end of the referenced area, Disposal Area No. 2. ]'he initial process involved the use of a truck propelled back ~oe which dug trenches in a "zipper" pattern from east to west until the buried debris area had been "daylighted", or completely defined. 'The water table was extremely shallow this time of year, due to the unusually heavy spring rains, which complicated t~e excavation anO removal process. Excavated debris was stock piled along individual cuts and allowed to drain and dry prior to any removal. This process was necessary throughout the entire project. The significance of the composition of the removed waste is that it was primarily nursery related. We found tree trunks, pottin.g buckets and other plastic items wOich denote nursery activities. We Ol~ not find any industrial waste, or any indication of buried stock:piles o,f pesticides or insecticides. Pecan Hollow AOdition Level Two Environmental Investigation June 2, 1990 Page Four The biggest commercial influence, by ~ar, was the preponderance o~ old junk automobile and truck tires. These tires were in evidence both above and below ground. '[his debris was excavated, loaded~ and transported off-site, under the parameters cited in the precedin,~ section. Excavation continued until native soils were encountered. Chemical analysis of these soils revealed no contamination. Rainfall played an important role in the early stages o~ this project. The water table remained high and the surface remained saturated, making truck hauling impossible. A total of eleven (11) days were lost to excessive rainfall. The only positive note from this excessive moisture is that it allowed the back hoe to stockpile massive amounts of waste for removal once the material dried sufficiently for transport. An approximate total of 8,000 cubic yarOs of soil and debris was removed from Disposal Area No. 2. Disposal Area No. 1 was a small isolated area in the southwest corner of the tract and totally Jen¢o related. This was t~e final dump ground for the nursery before ceasing business activities. ]'his area presented no problems, trash or water wise, and virtually cleaned up in two days. '[he great preponderance of this debris comprised discarded tires, plastic shrubbery containers, and plastic sheeting. No evidence of any hazardous and/or toxic wastes were detected, either visually~ olfactory, or analytically. An approximate total of cubic yards of soil debris was removed from Disposal Area No. 1. Disposal Area No. :3 was discovered durin,~ excavation activities. It was omitted, or overlooked, in the Phase I reports. The error of omission is relatively simple. There were thousands o~ old Junk tires situated around and in the small pond area. Investigators were told and assumed that the waste was purely surface oriented and no buried debris existed under the tires. ]'his line of reasoning proved false. Several thousand cubic yards o~ debris was excavated and removed ~rom Disposal Area No. 5. The debris encountered in this area was indentical to the debris described in Disposal Area No. 1. Excavation continued until native soils were encountered. Again, soil samples were extracted and subjected to chemical analysis. An approximate total o+ 20,000 cubic yards of soil and debris was removed +rom Disposal Area No. 5. Pecan Hollow Addition Level Two Environmental June --, 1990 Page Fi ye Investigation As of this report date, all known unclassified debris has been excavated and removed form this tract. Disposal Areas [)ne, 'lwo and Three are now clean and ready for backfill. PONDS: Two large ponds and one small pond dotted the landscape o+ this original tract. De-watering activities began with t~e southeast pond which was the largest of the three. Pumping began on April 5, 1990, by pumping water from the southeast pond through an existing pipe culvert to the northeast pond. ]'he water then drained from the northeast pond along a rough cut ditch off-site to an existing drainage canal. Rainfall hampered early pumping activities to the extent t~at they were discontinued for several days. Run-off and groundwater refilled the pond as fast as it could be pumped. Notable progress on de-watering and cleaning of the southeas~ pond was not significant until May 11, 1990. At that time a small coffer dam was placed about the mid-point, east and west, so the southern hal+ could be dried. This, and ceasing rain~all~ enabled the contractor to re-claim the pond bottom. A back hoe excavated the bottom muck, while a dozer spread the material ~o dry. Surprisingly~ the bottoms of all ponds were virtually clear o~ deOris and only slightly organic. All excavateO bottom muck, once allowed to drain and dry, proved suitable for back~ill. The excavation and drainage process progressed from the south of the southeast pond, around the corner to the west on the south side of the old entrance road, then across to the east side of the northeast pond. Water was funneled into t~e northwest corner of the northeast pond and then eliminated altogether. '['he small pond in the north central part of the site, near the north boundary~ had dried up on its own prior to any excavation or clean-up in t~at area, thus de-watering was not required. Pond clean-up and bottom reclamation of all ponds was completed by July 1, 1990. These areas stand ready for backfill activities. Pecan Hollow Addition Level Two Environmental Investigation June 2, 1990 Page Si x Introduced earlier were volumes of test results. Results, we are pleased to verify, were not hazardous materials, merely exposed unwanted burie0~ unclassified materials. These materials were subjected to every applicable know analysis. The overall conclusion of this massive testing program soowed that the deOris, once excavateO~ required no special handling or disposal area. Geo-Technique, Inc. personnel were not involved in the Level One testing pro,gram. We did, however, in order to further verify the non--hazardous status of the excavated material~ test seven additional areas during the Level 'Two pro,gram. Areas Tested: (Results Included in Appendix) 1. East End of Disposal Area No. 2 (8~ deep) 2. South End of Southeast Pond (bottom muck) 5. West End of Disposal Area No. 1 (6' deep) 4. Northeast End o~ Southeast Pond (below muck) 5. West End o~ Disposal Area No. 2 (10~ deep) 6. West End of Disposal Area No. 3 (4~ deep) 7. East End of Disposal Area No. 5 (5~ deep) The results of our testing program revealed no surprises. The sites we tested were areas that should have proved non-compliance for metals and hyOrocarOons, if any areas of non-compliance existed. As can be seen from the laboratory reports, all samples tested proved hazard free. Five (5) metals; arsenic, cadium, chromium, selenium, an0 silver were detected in levels exceeding the Oetection limits. ]"his does not infer that these soils are contaminated. These metals occur naturally in soils, o~ which the levels Oepend upon the re.gion. None of t~e levels detected are considered hazarOous, dangerous~ or o~ any concern by either the Texas Department of Health, or the United 5{ates Environmental Protection Agency (EPA). F'ecan Hollow Addition Level Two Environmental Investigation June 2, 1990 Pa,ge Seven CONCLUSION: The excava%ion of unclassified debris, de-watering and clean-up of the ponds, and ~ne overall site abatement activities are now completed. The site is ready for backfill and grading construction. We inspected, supervised and tested all phases of this environmental assessment and removal program. We conclude, to the best of our knowledge based upon our visual and analytical testing; the previously referenced published results of reports issued by Staal, Gardner and Dunne, Inc., and Dames & Moore, Inc.; that the Pecan Hollow Addition to the City of Coppell, Dallas County, Texas, to be in compliance with current federal, state and local regulations. All unclassified debris discovered during the course of the three (5) investigations has been analyzed, excavated, and disposed of off-site. Pecan Hollow Addition, in our opinion~ is environmentally suitable for residential housing construction. Mart i n Da~e APPENDIX FUTURE RESIDENTIAL TRACT ~ ~ --,~ J '= R : OND ~¢~v~V ~ x/ ~ ~'~ ~.: .,~,~ -~/ / ~o~ F _ ~,~o I ~ I1:/ ~~ I I ~ GR~VEL,~~ I~11~/ 0~ ~~ I I / / / P~ / [.,~..~ ~ I I// FIELD SHADE I I ' ' -- ' HOUSES I I ABANDONED VACANT ElBE PASTURE PROPERTY Vc. NICLE I MAIN~ ENAN(~ I rid O O SAMPLE I.D.: S-1 DATE: 04-10-90 SAMPLE TYPE: 5oll LOCATION: ~.0 +ee~i EX-rRACTION METHOD: EPA Method 1510 TEST METHOD: EPA SW-846 DETECTION AMOUNT EPA LIMIT DE-I-ECl'ED METAL METHOD (mg/1) (mg/1) Arsenic 7061 0.05 < O. 05 Barium 60i0 0. I < O. 1 Cadmium 6010 O. 01 O. 08 ? Chromium 6010 O. 05 < 0. ('~5 ~ Lea~ 6010 0.02 < O. 02 Mercury 7471 0. 001 < O. 001 Selenium 7741 0.01 0. 10 ' Si lver 7760 0.01 < O. O1, TOTAL F'ETROLEUM HYDROCARBON TEST DETECTION LIMIT RESULTS Total Petroleum Hydrocarbon 10.0 mg/~:'.,~ < 10.0 m,g/~.g EPA MethoO 418.1 C._]E:.C_]_Ar,/o_.c~F_i~=r-~R 'r .?,lAZED PEE:..T SAMPLE !.D.: S-1 SAMF'LE TYPE: Soil EPA METHOD: EF'A SW-846 D A T E: 04 - ! O- ? 0 LOCAT!ON: 8.Ci feet PARAMETER DETECTION AMOUNT LIMIT - DETECTED (u,~/kg) (u,~/k,~) Aldrin .............................. alpha-BHC ........................... beta-BHC ............................ gamma-BHC (LINDANE) ................. delta-BHC ........................... Chlordane ........................... 4~4'-DDD ............................ 4~4'-DDE ............................ 4,4'-DDT ............................ Dieldrin ............................ Endosul{an I ........................ Endosul~an II ....................... EndosulCan sulfate .................. Endrin .............................. Endrin aldehyde ..................... Heptach!or .......................... Heptach!~r ep~xide .................. Me~hoxychl~r ........................ PCB 1016 ............................ PCB 122! ............................ PCB 1232 ............................ PCB 1242 ............................ PCB 1248 ............................ PCB 1~4 ............................ PCB !260 ............................ Toxaphene ........................... 40 Ill 10 .................... < 10 10 .................... < ! 0 ! 0 .................... '":1 10 1 C) .................... < 10 ! 0 .................... < 10 2n .................... < 20 20 .................... < 20 20 .................... < 20 2(:) .................... < 20 1 A .................... < ! 0 20 .................... < 20 10 .................... < 10 50 .................... < 50 ! 0 .................... < 10 20 .................... < 20 ! 0 .................... < 10 50 .................... < 50 50 .................... < 50 50 .................... < 50 50 .................... < 5C, 50 .................... < 50 < 50 < 50 50 .................... 50 .................... < 50 < 50 50 .................... .................... · ::1 400 HERBICIDES ANALYSIS TEST REQUESTED DETECTION AMOUNT LIMIT - DETECTED (ug/1) (u,~/1) 2,4 - D ............................. 2,4 - D methyl ester ................ 2,4,5 - T ........................... ~ 4,5 - T methvl ester .............. Silvex .............................. Silvex methyl ester ................. < 50 ~0 .................... < 50 50 .................... ~ 0 .................... < 50 -:" 50 50 .................... :1 50 ~ 0 .................... < 50 50 .................... MASS SPECTROMETR'/ LABOPATOR'F GC/MS QUANT!TAT!ON REPORT SAMPLE !.D.: S-1 SAMPLE TYPE: Soi! EPA METHOD: 8240 Pur,geable Compounds DATE EXTRACTED: LOCATION: 04- 10-90 8.0 feet PARAMETER DETECTION LIMIT - ( u,g / k ,g ) AMOUNT DETECTED ( u,g / k ,g ) Benzene ............................. 5.0 Bromof orm ........................... 5.0 Bromomethane ........................ 10.0 Carbon tetrachloride ................ 5.0 Chl orobenz ene ....................... 5.0 Chl ordi bromomethane ................. 5.0 2-Chloroethylvinyl ether ............ ~.~ 6) Chl oroethane ........................ 10.0 Chloroform .......................... 5.0 Chloromethane ....................... 10.0 Dichl orobromomethane ................ 5.0 2-Dichi orobenzene. ~,. 0 1., 3-DJ chl orobenz ene. ~ 5.0 1,4-DJ chl orobenzene ................. !, 1-DJ chl oroethane .................. 5.0 1,2-Dichloroethane .................. = 0 1, 1-DJ chl oroethene .................. 5.0 trans- 1,2-Di chl oroethene ............ 5.(]) 2-DichI oropropane. 5.0 ¢i s-1,3-Di chl oropropene ............. 5.0 trans-l, 3-Di chl oropropene ........... 5.0 ethyl benzene ........................ 5.0 Methylene chloride .................. 25.0 2~ 2-Tetrachl oroethane. 5.0 1~1~ .......... Tetrachloroethene ................... 5.0 Toluene ............................. 5.0 1~ 1~ 1-Trichloroethane ............... 5.(]) I ~ I., 2-Tr i chl oroethane ............... 5.0 Tri chloroethene ..................... 5.0 Tri chl orof i uoromethane .............. 10.0 Vinyl chloride ...................... 10.0 ................... < 5.0 ................... < 5.0 ................... < 10.0 ................... < 5.0 ................... < 5.0 ................... < 5.0 ................... < 5.0 ................... < 5.0 ................... < 1 0.0 ................... < 5.0 ~. (.') "-" 5.0 ................... < 5.0 ................... < 5.0 ':" 5.0 -:" 5. (5 ................... < 5.0 ................... < 5.0 ................... < 5.0 ................... <.-'~5 . (-). ................... < 5.0 ................... < 5.0 ................... < 5.0 ................... < 5.0 .:" ,_,. (') ................... < 5.0 ................... <: 10.0 ................... < 10.0 S/aMPLE I.D.: S-2 DATE: 05-15-90 S~MF'LE "I'YP'E: 5oil LOCATION: Bottom Muck EXTRAC'I'IDN M~_'I'MUD: EPA Method 1510 TEST METHOD: EPA SW-846 DE'I' EC'F I ON AMOUNT EPA L I M I T DE-I'EC]'ED ME'rAL ME'tHUD (mg/l) (mg/1) Arseni c 7061 0. £)5 O. 07 Bar ium 6(]) 1 (] 0. 1 < ('). 1 Cadmium 6010 0. (])1 < 0.01 Chromium 6010 0.05 0. 1:3 Lea~ 6010 0.02 < 0.02 Mercury 7471 0. 001 < 0.00 Selenium 7741 0.01 < 0.01 Si lver 77~0 0.01 < 0, O1 TOTAL PETROLEUM HYD~:OCARBON ]'EST DETECTIUN LIMIT RESULTS Total Petrol eum Hydrocarbon EPA Method 418.1 1 (-). (-) m,_]/K,.] 5 7. ~ m,p / K,.~ EP -I"OXICITY ME]ALS SAMF'LE I.D.: SAMPLE I'YPE: Soil EXTRACTION METHOD: EF'A Method 1310 DA'rE: 05-3n-90 LOCATION: 6.0 feet TEST METHOD: EF'A SW-846 EPA METAL METHOD DETECTION AMOUNT LIMIT DETECTED (mg/1) (mg/1) Arsenic 7061 Barium 6010 Cadmium 6010 Chromium 6010 Lead 6010 Mercury 7471 Selenium 7741 Silver 7760 TOTAL F'ETROLEUM HYDROCARBON I'EST DETECTION LIMIT RESULTS Total Petroleum Hydrocarbon 1(').0 mg/Kg 54.3 mg/K,~ EPA Method 418.1 SAMPLE I.D.: S-4 SAMPLE TYPE: Soil EXTRACTION METHOD: EPA Method 1310 DATE: LUCAT I ON: TEST METHOD: 06- 08 - ? 0 Below Muc ~:: EPA SW-846 EPA METAL METHOD DETECT I ON AMOUNT LIMIT DETECTED (mg/1) (mg/1) Arsenic 7061 Barium 6010 Cadmium 6010 Chromium 60i0 Lead 6010 Mercury 7471 Selenium 7741 Silver 7760 TOTAL F'E'rROLEUM HYDROCARBON TEST DETECT 1 UN L I M I T RESULTS Total Petroleum Hydrocarbon 10.A rog/Kg 15.6 mQ/K,.~ EPA Method 418.1 EP TOXICITY METALS SAMPLE I.D.: S-5 DATE: 06-08-90 SAMPLE ]'YPE: Soil LOCATION: 10.0 feet EXTRACTION METHOD: EPA Method 1310 TEST METHOD: EPA SW-~46 DETECTION AMOUNT EPA LIMIT DEI'ECTED METAL METHOD (mg/1) (mg/1) Arsenic 7061 0.05 < O. 05 Barium 6010 0.1 < 0.1 Cadmium 6010 O. 01 < 0.01 Chromium 6010 0.05 < 0. Lead 601A 0.02 < 0.02 Mercury 74'71 0. 001 < 0. 001 Selenium 7741 0.01 0.03 Silver 7760 0.01 < 0.01 TOTAL F'ETROLEUM HYDROCARBON TEST DETEC'¥ION LIMIT RESULTS Total Petroleum Hydrocarbon 10.0 mg/~O~ 66.7 m,~/K,~ EPA Me~hod 418.1 ORGANOCHLOF:!NATED PESTICIDES SAMF'LE I.D.: S-5 SAMPLE TYPE: Soil EPA METHOD: EPA SW-846 D A T E: 06- 08- 90 LOCATION: 10.0 feet PARAMETER DETECTION LIMIT - ( u g / k g ) AMOUNT DETECTED (ug/kg) Aldrin .............................. alpha-BHC ........................... beta-BHC ............................ gamma-BHC (LINDANE) ................. delta-BHC ........................... Chlordane ........................... 4,4'-DDD ............................ 4~4'-DDE ............................ 4~4'-DDT ............................ Dieldrin ............................ Endosulfan I ........................ Endosulfan II ....................... Endosulfan sulfate .................. 50 Endrin .............................. 10 Endrin aldehyde ..................... 20 Heptachlor .......................... 10 Heptachlor epoxide .................. 50 Methoxychlor ........................ 50 PCB 1016 ............................ 50 PCB 1221 ............................ 50 ~3~ ............................ 50 PCB 1~ ~ PCB 1242 ............................ 50 PCB 1248 ............................ 50 PCB 1254 ............................ 50 PCB 1260 ............................ 50 Toxaphene ........................... 400 10 .................... 10 .................... 10 .................... 10 .................... 20 .................... 20 .................... 20 .................... 20 .................... ! 0 .................... 20 .................... ! 0 .................... HERBICIDES ANALYSIS TEST REQUESTED DETECTION AMOUNT LIMIT - DETECTED (ug/1) (ug/1) 2~4 - D ............................. 2,4 - D methyl ester ................ 2,4,5 - T ........................... 2,4,5 - T methyl ester .............. Silvex .............................. Silvex methyl ester ................. 5 0 .................... < 5 0 5 0 .................... < 5 0 50 . ................... < 50 5 0 .................... ;:] 5 0 50 .................... < 50 5 0 .................... ':" 5 0 MASS SPECTROMETRY LABORATORY GC/MS QUANTITATION REPORT SAMPLE I.D.: S-5 SAMPLE TYF'E: Soil EPA METHOD: 824(:) Purgeable Compounds DATE EXTRACTED: LOCATION: 06 - 08 - 90 10.0 feet PARAMETER DETECTION LIMIT - ( u g / k ,g ) AMOUNT DETECTED (ug!kg) Benzene ............................. 5.0 Bromoform ........................... 5.(]) Bromomethane ........................ 10.0 Carbon tetrachloride ................ 5.0 Chlorobenzene ....................... 5.0 Chlordibromomethane ................. 5.0 2-Chloroethylvinyl ether ............ 5.0 Chloroethane ........................ !0.0 Chloroform .......................... 5.0 ................... < Ch!~romethane ....................... 10.0 ................... < Di chi orobromomethane ................ 1 ~ 2-Di chi orobenz ene ................. 1., 3-DJ ch 1 orobenz ene ................. i, 4-DJ ch 1 orobenz ene ................. 1 ~ 1-Dichl oroethane .................. 1,2-DJ chloroethane .................. 1., 1-Dichloroethene .................. trans-l, 2-Dichloroethene ............ 1., 2-DJ chl oropropane ................. tis-1,3-Di chl oropropene .......... '... frans-l, 3-Dichloropropene ........... ethyl benzene ........................ 5.0 ................... < 5.0 ................... < 5.0 ................... < 5.0 ................... < 5.0 ................... < 5.0 ................... < 5.0 ................... < 5.0 ................... < 5.0 ................... < 5. A ................... .::] 5.0 ................... < 5.0 ................... < Methylene l~l,2,2-Tetrachloroethane ........... letrachloroethene ................... Toluene ............................. 1,1,!-Trichloroethane ............... l~l,2-Trichloroethane ............... Trichloroethene ..................... Trichlorofluoromethane .............. 1 Vinyl chloride ...................... chloride ~s 0 < 5.0 ................... < 5.0 ................... < 5.0 ................... < 5.0 ................... < 5. (') ................... < 5.0 ................... < 0.0 ................... < 0. (:) ':' 5.0 5.0 10.0 5.0 5.0 5.0 5. (:~ ! 0.0 5.0 10.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5. o 5.0 5.0 5. (:) 5.0 25.0 5. (') 5. 0 5.0 5.0 5. (;) 5.0 10.0 10.0 SAMPLE I.D.: S-6 DATE: 06-22-~0 SAMPLE TYF'E: Soil LOCATION: 4.0 feet EXTRACTION MEFHOD: EPA Method 13lA -[EST METHOD: EPA SW-846 DETECT I ON AMOUNT EPA LIMIT DETECTED METAL METHOD (re,g/1 ) (mg/1) Arsenic 7061 0.05 O. ¢)9 Barium 6010 0.1 < c).1 Cadmium 6010 0.01 < 0.01 Chr omi um 6010 0. o5 < ~'). 05 LeaO 6010 0.02 < 0.02 Mercury 7471 0. 001 < O. 001 Selenium 7741 0.01 0. (')6 Si lver 7760 0. O1 < 0.01 TOTAL PETROLEUM HYDROCARBON TEST DETECTION LIMIT RESULTS Total F'etroleum Hydrocarbon io.O m,g/~::.,g 6~.7 mg/X.,g EPA Method 418.1 EP TOXICITY METALS SAMPLE I.D.: S-7 SAMPLE TYPE: Soil EXTRACTION METHOD: EPA Method 1510 DATE: LOCATION: TEST METHOD: 06-29-90 5.0 feet EPA SW-846 EPA METAL METHOD DETECTION AMOUNT LIMIT DETECI'ED (mg/1) (mg/i) Arsenic 7081 Barium 6010 Cadmium 6010 Chromium 60i0 Lead 6010 Mercury 7471 Selenium 7741 Silver 7760 TOTAL PETROLEUM HYDROCARBON TEST DETECTION LIMIT RESULTS Total Petroleum Hydrocarbon 10.0 m,..] / I<.,...] 66.7 mg/K,.g EPA Method 418.1 ORGANOCHLORINATED PESTICIDES SAMPLE I.D.: S-7 SAMPLE TYPE: Soil EPA METHOD: EPA SW-846 DATE: 06-29-90 LOCATION: 5.0 +eet PARAMETER DETECTION AMUUNT LIMI'[ - DETECTED (ug/kg) (ug/ Aldrin .............................. alpha-BHC ........................... beta-BHC ............................ gamma-BHC <LINDANE) ................. Qelta-BMC ........................... Chlordane ........................... 4,4~-DDD ............................ 4~4~-DDE ............................ 4~4~-DDT ............................ Dieldrin ............................ En~osul~an I ........................ Endosul~an II ....................... Endosulfan sulfate .................. En~rin .............................. Endrin aldehyde ..................... Heptac~lor .......................... Heptachlor epoxi~e .................. Methoxychlor ........................ PCB 1016 ............................ PCB 1~21 ............................ PCB 12~2 ............................ PCB 1242 ............................ PCB 1248 ............................ PCB. 1254 ............................ PCB 1260 ............................ Toxaphene ........................... 10 .................... < 10 10 .................... < 10 10 < 10 1 0 .................... { 1 0 10 .................... < 10 20 .................... < 2(i) 20 .................... < 20 20 .................... < 20 20 .................... < 20 10 .................... < 10 20 .................... < 20 10 .................... < 10 50 .................... < bO 10 .................... (. 10 2(3 .................... < 20 10 .................... < 10 50 .................... < 50 50 .................... < 5A 50 .................... < 50 50 .................... < 50 50 .................... < 50 50 .................... < 50 50 .................... < 50 50 .................... < 50 50 .................... < 50 400 .................... < 4(1)(]) HERBICIDES ANALYSIS TEST REQUESTED DETECTION LIMIT - (ug/1) AMOUNT DE'I'EC'I'ED (ucj/1) 2,4 - D methyl ester ................ 2 4,5 - T ........................... ~,4,5 - T methyl ester Silvex .............................. Silvex methyl ester ................. 5(]) .................... 5(]) .................... 5(i) .................... 5(i) .................... 5(.] .................... 5cZ) bC) b 0 5C) bO MASS SPECTROMETRY LABORATORY GC/MS ~UANTITRTION REPOR]" SAMPLE I.D.: S-Z SAMPLE TYPE: Soil EPA METHOD: 82~0 Purgeable Compounds DATE EXTRACTED: LOCATION: 06-29-90 5.0 ~ eet PARAMETER DE]'ECTION AMOUNT LIMIT - DETECTED (ug/kg) Benzene.... ................ . .... .... Bromo~orm ........................... Bromomethane ........................ Carbon tetrachloride ................ Chlorobenzene ....................... Chlordibromomethane ................. 2-Chloroethylvinyl ether ............ Chloroethane ........................ Chloroform .......................... Chloromethane ....................... Dichlorobromomethane ................ 1,2-Dichloro~enzene ................. l~3-DichloroOenzene ................. 1,4-Dichlorobenzene ................. l~l-Dichloroethane..' ................ 1,2-Dichloroe~ane .................. 1,1-Dichloroethene .................. trans-l~2-Dlc~loroethene ............ 1,2-Dichloropropane ................. cis-l,5-Dichloropropene ............. trans-l,5-Dichloropropene ........... ethylbenzene ........................ Methylene chloride .................. 1,1~2~2-Tetrachloroethane ........... Tetrachloroethene ................... Toluene ............................. l,l,l-Trichloroethane .......... ? .... l,l~2-Trichloroethane ............... Trichloroethene ..................... Tric~loro~luoromethane .............. Vinyl chloriOe..~ ................... 5.0 ................... < 5.0 5.0 ................... < 5.0 10.0 ................... < lO. 0 5.0 ................... < 5.0 5.0 ................... < 5.0 5.0 ................... < 5.0 5.0 ................... < 5.0 10.0 ................... < 10.0 5.0 ................... < 5.0 10.0 ................... < 10.0 5.0 ................... < 5.0 5.0 ................... < 5.0 5.0 ................... < 5.0 5.0 ................... < 5.0 5.0 ................... < 5.0 5.0 ................... < 5.0 5.0 ................... < 5.0 5.0 ................... < 5.0 5.0 ................... < 5.0 5.0 ................... < 5.0 5.0 ................... < 5.0 5.0 ................... < 5.0 25.0 ................... < 25.0 5.0 ................... < 5.0 5.0 ................... < 5.0 5.0 ................... < 5.0 5.0 ................... < 5.0 5.0 ................... < 5.0 5.0 ................... < 5.0 10.0 ................... < 10.0 10.0 ................... < 10.0