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HomeMy WebLinkAboutNCD980557656_19991101_NC State University (Lot 86 Farm Unit 1)_FRCBERCLA RD_Workplan for Groundwater Remedial Design (Revised)-OCRI I I I I I I I I I I I I I I I I I I WORKPLAN FOR NCSU LOT 86 GROUNDWATER REMEDIAL DESIGN Prepared for: Environmental Protection Agency And North Carolina State University Prepared By: Mid-Atlantic Associates, P.A. 409 Rogers View Court Raleigh, North Carolina 27610 May 14, 1999 Revised November 1999 MP?;~J'lAiNTJ~ E11gi11eeri1rg & Environmental So/111/ons I I I I I I I I I I I I I I I I I I I M!1?;¾Jl~t}N!l~ Engineering & Environmental Solutions 409 Roxcrs View Court I Ruldgh I North Carolina I 27610 800-486-7568 / 919-250-99181919-250-9950 Facsimile \1'Ww.maao11li11e.com WORKPLAN FOR NCSU 11.OT 86 GROUNDWATER REMEDIAL DESIGN May 14, 1999 Revised November 1999 Mid-Atlantic Associates Job No. 099R0769 Prepared For: Environmental Protection Agency and I North Carolina State University Prepared By: MID-ATLANTIC ASSOCIATES, P.A. Janice G. Baker, Ph.D. Senior Project Manager Thomas A. Proctor, P.G. Senior Environmental Geologist I I I I I I I I I I I I I I I I I I I 1.0 2.0 3.0 4.0 5.0 6.0 TABLE OF CONTENTS STATEMENT OF THE PROBLEM ........................................................................... 1 I BACKGROUND SETTING ...................................................................................... 1 2.1 Site Describtion ......................................................................................... 1 2.2 Site History ............................................................................................... 2 2.3 Existing Data ............................................................................................. 2 I WORK PRODUCTS ............................................................................................. .4 31 A ···1 A··· 4 . cguis1t1on ct1v1t1es .............................................. : ................................. . 3. 2 Design Criteria Report ................................................................................ 4 3.3 Preliminary! Plans and Specifications ............................................................ 5 3.4 Plan for Satisfying Permitting Reguirements .................................................. 5 3.5 Draft Construction Schedule ....................................................................... 5 3.6 Final /Pre-Final Design .............................. : ................................................. 5 I SCHEDULE .......................................................................................................... 6 I PROJECT MANAGEMENT PLAN ........................................................................... 7 I 5. 1 Data Management Plan .............................................................................. 7 5.2 Reporting .. 1 ................................................................................................ 7 I . COMMUNITY RELATIONS .................................................................................... 9 DRAWINGS Drawing 2.1 Site Vicinity Map Drawing 2.2 Site Map for Groundwater Remedial Design Drawing 4.1 Critical Pat~ Milestone Schedule TABLES Table 2.1 Table 2.2 Groundwater Analytical Results for Each of Twenty Wells Minimum ahd Maximum Groundwater Analytical Results for Twenty Wells M!1?;{\fl/}NTl~ . Enginrering & £,n·ironmefllai Solritions I I I I I I I I I I I I I I I I I I I WORKPLAN FOR NCSU LOT 86 GROUNDWATER REMEDIAL DESIGN 1.0 STATEMENT 01 THE PROBLEM The North Carolina State University (NCSU) Lot 86 Site (Lot 86) is a 1.5-acre site located on the west ~ide of Raleigh, North Carolina. The Lot 86 site served as a disposal site for chelnical and low level radioactive wastes generated in the educational and resea~ch laboratories at NCSU from 1969 to 1980. The wastes were disposed in subsurface trenches and covered with native soils. The waste deposited in the trenches is responsible for the groundwater and soil contamination present on site. The site was placed on the National Priority List (NPL) in October 1984. A Remedial Investigation Report was completed June 10, 1994. A Draft Feasibility Study was prepared in February 1996. A Record of Decision (ROD) was issued by the Environmental Protection Agency {EPA) on September 30, 1996. EPA selected groundwater pump arid treat and in-situ soil mixing and encapsulation as the remedy for this site. Mid-Atlantic Associates, P.A. has been retained to prepare this Remedial Design Work Plan {Work Plan) [tor groundwater remediation at Lot 86. The Work Plan will be followed by preliminary and final remedial designs before groundwater remediation is implemehted at this site. The goal of the remedial action is to restore the groundwater to its beneficial use. • Groundwater contamination may be especially persistent in [ the immediate vicinity of the contaminants' source, where concentrations are relatively high. The ability to achieve remediation levels at all points throughout the plume cannot be determined until the extraction system has been implemented, mcidified, as necessary, and plume response monitored over time. 2.0 BACKGROUND SETTING 2.1 Site Description The Lot 86 site is northeast of Carter-Finley Stadium and immediately south of the Wade Avenue Extensioh right-of-way and is surrounded by state-owned property (Figure 2.1). The site i~ bounded on the west by the stadium parking area and MP?;t\fl~◊N!JS: E11gineering & Enl'/ronmen111/ Solutions I I I I I I I I I I I I I I I I I I I Workplan for NCSU Lot 86 May 14, 1999 Groundwater Remedial Design Page 2 surrounded by trees oh the three remaining sides. The nearest water supply well is reportedly located apbroximately 2,000 feet southeast of the site at the Medlin residence. Groundwater occurs in the silty clay/granular soils (residual and saprolite) and in the I underlying crystalline bedrock under generally water table (unconfined) conditions. The unconsolidated ~oils aquifer is chiefly replenished by the infiltration of precipitation where the aquifer is exposed. The shallow unconsolidated residual soil/saprolite water-be1aring unit exists at depths ranging from 20 feet to 40 feet I below land surface, and flows west/northwest toward Wade Avenue. 2.2 Site History The Lot 86 site was used as a hazardous chemical and low level radioactive waste disposal site beginninb in 1969. The waste was generated in the University's educational and research laboratories. The site was divided into two separate areas as shown on Figure 2.1; the western area received the hazardous chemical waste, and the eastern area received low level radioactive waste. Burial of waste I was discontinued in November 1980, to comply with the regulations promulgated under the Resource cdnservation and Recovery Act (RCRA). The chemical wastes lere placed in trenches and covered with approximately two I feet of native soils. 1here are 22 trenches approximately ten feet deep and from 50 to 150 feet in length. Types of chemicals buried at the site include solvents, pesticides, inorganics, acids, and bases. NCSU reported that it had disposed of approximately 11,000 cubic yards of chemical waste at the site. Quantities reported included lightly contaminated soils and water as well as actual waste materials. Radiological wastes were buried in nine trenches approximately 6 feet deep and 50 to 120 feet long. The depth of wastes in the bottom of the trenches was reported to be two feet with fo~r feet of native soil cover material. Most of the waste was in· solid form, primarily animal carcasses ranging in size from rats to whole sheep. Radionuclides present in the waste include tritium, carbon-14, iron-59, and phosphorus-32. The site was placed on the National Priority List in October 1984, based on results from an inspection conipleted in June 1984. 2.3 Existing Data A significant amount of site data has been collected during previous investigations. Thirty-three wells were installed near the site prior to 1993 and ongoing sampling MP?;{\Jl~~N!J~ /:"111;i111•1•rin,: & E111•iro11me111a/ S0/111/011.1 I I I I I I I I I I I I I I I I I I I Workp/an for NCSU Lot 186 May 14, 1999 Groundwater Remedial Design Page 3 of these wells has bJen conducted since the early 1980s (Figure 2.2). In 1993, I eight new stainless steel monitoring wells were constructed during the Remedial Investigation. Sample1s were collected from the eight new wells, 11 existing wells, and one domestic w~II (Medlin residence). Groundwater analytical results from these 20 wells are sJmmarized in Table 2.1. In Table 2.1, the balded analytical results are actual me~sured levels, while the "less than" values indicate laboratory detection limits. The r\iinimum and maximum detected levels for each contaminant in these 20 wells are Jummarized in Table 2.2. Groundwater analyticli results indicated that volatile organic chemicals (VOes) were the most prev~lent group with low levels of semivolatile organics and pesticides detected. \/Oe concentrations are notably higher in the shallow aquifer than in the bedrock a~uifer, with the highest concentration near the landfill. voes were not present in b~ckground and upgradient wells. The highest dissolved voe I concentrations were detected in wells MW-37S, MW-36S, MW-5A, and MW-1 B in ' the upper five to ten feet of the saturated zone, immediately west and northwest of the landfill, nearest the disposal trenches. The highest concentrations measured included: acetone -16,000 micrograms per liter (µg/1) in MW-36S; benzene 14,000 µg/I in MW-3~S; carbon tetrachloride 6,400 µg/I in MW-37S, chloroform - 63,000 µg/I in M'«-37S; methylene chloride -18,000 µg/I in MW-37S; tetrachloroethene -5,000 µg/I in MW-37S; and trichloroethene -1,300 µg/1 in MW-36S. Low levels bf voes were detected in some of the deep wells. All of the semivolatilJs and pesticides detected in the groundwater were at low I level concentrations. Within the semivolatile organic group, three parameters were detected in samples I collected from three different wells. Bis(2-ethlyhexyl) phthalate was detected at 41 milligrams per liter (mg/I) in the background well MW- 34D. lsophorone w~s detected at 570 mg/I in MW-37, and napthalene was detected at 31 mg/I in1 MW-36S. Pesticides (chordane, dieldrin, and lindane) were detected in shallow wJlls MW-34S, MW-35S, and MW-37, respectively. I The following metals Jere detected in downgradient wells at concentrations above those present in th1e upgradient wells (maximum detected levels are in parentheses): arsenic I (110 µg/1), barium (960 µg/1), calcium (28,000 µg/1), chromium 17 (µg/I), cobalt (89 µg/I), copper (68 µg/I), lead (31 ~Lg/I), magnesium I 5,600 (µg/I), mangane'se (20,000 µg/I), nickel (73 µg/1), potassium (15,000 µg/I), sodium (20,000 ~Lg/I), kine (660 ~Lg/I). All groundwater samplL were analyzed for carbon-14 and tritium. earbon-14 was I detected in only in MW-38 above the detection limit of 500 pico-curies per liter I • (peill) at 522 pei/1. T[ritium was detected at three wells at concentrations ranging from 711 pei/I to 6,000 pei/1, which are well below the Mel of 20,000 pei/1. MP?;{\f,~◊N!J~ E1rgineeri111; & En1'ironmen1al So/11tiuns I I I I I I I I I I I I I I I I I I I Workplan for NCSU Lot 86 Groundwater Remedial Design I 3.0 WORK PRODUCTS May 14, 1999 Page 4 This document is a Work Plan for the Lot 86 Groundwater Remedial System Design. It is accompanied by a Sampling and Analysis Plan, Quality Assurance Program Plan, and la Health and Safety Plan. Following approval of these documents a Preliminary Design and a Final Design for the Remedial System will be completed. The stepJ to be completed for the design, as well as, purpose of the tasks, information to be collected, and documents to be produced are summarized below. 3 1 A . . . A I ... . cqws1t1on ct1v1t1es I Data collection will include review of previous onsite investigations, an aquifer pumping test, and sufveys. Data gathered during the project planning phase will be compiled, summarized, and submitted to NCSU, the EPA, and the North Carolina Department of Envircinment and Natural Resources (DENR). An analysis of the impact of the result~ on design activities will be included. In addition, surveys conducted to establis1h topography, right-of-ways, easements, and utility lines will I be documented. Utility requirements and acquisition of access, through purchases or easements that a~e necessary to implement the Remedial Action will also be discussed. An aquif~r pumping test at the site will determine site specific hydrologic parameterJ to be used in the design of the remedial system. . I 3.2 Design Criteria Report I I The concepts suppo~ 1 ting the technical aspects of the design will be defined in detail and· presented in this report. Specifically, the Design Criteria Report will include the preliminary design assumptions and parameters, including: ) W h I . . a aste c aractenzat1on b) Treatability study ) P I . c retreatment requirements d) Volume of each media requiring treatment e) Treatment sch~mes (including all media and by-products) I f) Input and output rates I g) Influent and effluent qualities h) Materials and ebuipment I i) Performance standards ' j) Long-term monitoring requirements I The evaluations condGcted to select the design approach will be described. Data from the aquifer pumping test will be an integral part of the design. I . MP?;{\fl~◊N!J~ Engineering & Enl'ironmentul Solutions I I I I I I I I I I I I I I I I I I I Workplan for NCSU Lot 186 Groundwater Remedial fJesign I 3.3 Preliminary Pla~s and Specifications May 14, 1999 Page 5 An outline of the reduired drawings, including preliminary sketches and layouts, describing conceptual !aspects of the design, unit processes, etc. will be submitted. An outline of the required specifications, including performance tandards, will also be submitted. Construction drawings will reflect organization and clarity, and the I scope of the technical specifications will be outlined in a manner reflecting the final specifications. 3.4 Plan for Satisfying Permitting Requirements All activities will be Jerformed in accordance with the requirements of applicable federal and state law~ and regulations. Disposal of soil cuttings and groundwater I will be handled by NCSU. Any off-site disposal will be in compliance with the policies stated in the I Procedure for Planning and Implementing Off-site Response Actions (Federal Register, Volume 50, Number 214, November, 1985, pages 45933-45937) and Federal Register, Volume 55, Number 46, March 8, 1990, page 8840, and the Nation1al Contingency Plan, Section 300.400. If offsite disposal is I selected, an offsite disposal plan will identify any permits that are required, the time required to procebs the permit applications, and a schedule for submittal of the permit applications. 3.5 Draft Construction Schedule I A Draft Constructi!n Schedule will be developed for construction and implementation of th~ remedial action, which identifies timing for initiation and completion of all critic'al path tasks. The schedule will specifically identify dates for completion of the proj~ct and major milestones. I 3.6 Final/Pre-Final Design I NCSU, EPA, and NC .DENR comments on the Preliminary Design and a memorandum indicati~g how comments were incorporated will be included in the Pre-final/Final Design. IThe Pre-final Design will be submitted when the design work is approximately 90 percent complete, in accordance with the approved design management schedule. Comments generated from the Preliminary Design Review will be addressed and any modification of the design as a result of incorporation of the comments will be clearly shown. Essentially, the Pre-final Design will function as the draft version ofl the Final Design. MP?;Nl;(~N!lS:. Engin1'erin1; & £ndrvnme11tal Solu1ion.1 I I I I I I I I I I I I I I I I I I I Workplan for NCSU Lot !B6 Groundwater Remedial Design I May 14, 1999 Page 6 After NCSU, EPA, and NC DENR review and comment on the Pre-final Design, the Final Design will be s~bmitted alorig with a memorandum indicating how the Pre- final Design comments were incorporated into the Final Design. All Final Design documents will be ce1rtified by a Professional Engineer registered in the State of North Carolina. NCSU, EPA, and NC DENR written approval of the Final Design will I be obtained before initiating the RA, unless specifically authorized by NCSU, EPA, ' and NC DENR. The following items will be submitted with or as part of the Pre- final/Final Design. i · a) Complete Design Analyses The selected design will be presented along with an analysis supporting the design approach. Design calculations will be included. I b) Final Plans and Specifications A complete\ set of construction drawings and specifications which describe the 1 selected design will be submitted. c) Final Constructibn Schedule A final construction schedule will be submitted for approval. d) C . C I E . . onstruct1on est st1mate An estimate [ with + 1 5 · percent to -10 percent of actual construction costs will be1submitted. 4.0 SCHEDULE A Critical Path MHestJne (CPM) chart for this project is presented in Figure 4.1 . This chart indicates iAitiation and completion dates for tasks and critical paths. Submittal dates for d~liverables are summarized below. This proposed schedule meets the requirementk of the Consent Decree. RD Work Plan Sampling and Analysis Plan I Health and Safety Plan . I Results of Data Acquisition Activities ' Design Criteria Report Preliminary Plans and Specifications Plan for Satisfyi~g Permit Requirements Complete Desig~ Analyses Final Plans and Specifications . I 5/6/99 5/6/99 5/6/99 10/21/99 10/21 /99 10/21 /99 . 10/21 /99 2/18/00 2/18/00 MP?;~\flA,}N!l~ Engi111'erini; & Enl'ironmenta/ S0/11/ion.~ I I I I I I I I I I I I I I I I I I I Workplan for NCSU Lot1 86 Groundwater Remedial Design -I Final Construction Schedule Itemized Const~uction Cost Estimate RA Work Plan I Project Delivery Strategy Construction m'anagement Plan Construction oic.. Plan Construction H~alth & Safety Plan 5.0 PROJECT MANAGEMENT PLAN I 5.1 Data Management Plan 2/18/00 2/18/00 2/18/00 2/18/00 2/18/00 2/18/00 2/18/00 May 14, 1999 Page 7 Data from the aquifJr pumping test, including flow rates and drawdown in the pumping test well land in nearby observation wells will be collected and summarized. Additional data will include analytical tests to characterize soil I cuttings and collected groundwater. ' I Microsoft Access® will be used as the data management system for the Remedial Design. All field and] laboratory testing results will be entered into Access® to facilitate efficient retrieval, sorting, and composing tables for importation into I reports. Although data may be manipulated to facilitate interpretation, the original data will be available1 on the original lab and field sheets, as well as in Access® files. This approach livill permit independent verification of results. All computer I data will be backed jup daily onto magnetic tape, which will be stored offsite. Access® is a flexible data management system; data formatting will be discussed with NCSU before fin~lization. Microsoft Office 97® will be utilized for most data management and reporting to facilitate transfer and summary. Reports will be provided as electronic files (Microsoft Word 97® and Excel 97®). as well as in hard copy. Schedule and progress will be track~d utilizing Microsoft Project®. Draft and final doculents will be individually numbered and dated. Numbered copies will be assigned to individuals/organizations to facilitate document control. 5.2 Reporting I -I Monthly Progress Letters Monthly progress lettts will be submitted by the 5th of each month. These letters will summarize work! performed and problems encountered during the previous month. The financial and technical progress of each task will be presented as well MP?;~J',~◊N!l~ Engineering & Enl'ironmf.'1r1al S0l111ion.1 I I I I I I I I I I I I I I I I I I I Workplan for NCSU Lot ;86 May 14, 1999 Groundwater Remedial Design Page 8 . as any anticipated sc~edule deviations. Progress versus schedule will be presented utilizing Microsoft Prdject®. Telephone and meeting notes will be attached to the progress letter. Outstanding requests for data/authorizations/decisions will be summarized. Work pl~nned for the next month will also be presented. . I Deliverables All deliverables will be submitted in draft form for review by NCSU prior to the submittal dates listed I above. Comments will be incorporated {if received in time) and "official" deliverables will be submitted on or before the due dates previously listed. Meetings and Presentations i The following five meetings/presentations with NCSU, EPA, and/or NCSU are planned: a) Project Kick-off I Meeting · Timing: After project go-ahead and data files are received by Mid-Atlantic. Goal: Introduce~ project team, establish communication procedures, discuss format for first deliverables {RD Work Plan, SAP, and Health and Safety Plan). l b) Review of RD Work Plan ' Timing: After NCSU/EPA/NC DENR review of 5/6/99 submittals ' Goal: Discuss I the approach presented in the RD Work Plan and accompanying documents and plans for data acquisition. c) Planning for Detgn Criteria Report · Timing: AugustlSeptember, 1999 after data acquisition. I . Goal: Discuss approach to be included in Design Criteria Report and other ' 10/21 /99 submittals. d) Review of Desiln Criteria Report Timing: After N~SU/EPA/NC DENR review of 10/21 /99 submittals. Goal: Review documents provided 10/21 /99 and plan for complete design ' analyses and Rf Work Plan. ' e) Review of RA Work Plan I Timing: After NCSU/EPA/NC DENR review of 2/18/00 submittals. Goal: Review d6cuments submitted 2/18/00. MP?;~J};t}NTl9. Engineering & £nl'ironmental Solutions I I I I I I I I I I I I I I I I I I I Workplan for NCSU Lot 1 86 Groundwater Remedial Design 6.0 COMMUNITY RELATIONS May 14, 1999 Page 9 One set of the follojing documents will be placed in the Cameron Village Public Library for review by !the public: Remedial Design Work Plan and Remedial Action Work Plan. Mid-Atlantic staff will attend public meetings if requested to do so, however, costs for prbparation and attendance at public meetings are not included in this project. MP?;~\f,½◊N!J~ Engineering & E,n•ironmenta/ Solutions I I I I I I I I I I . DRAWINGS I I I I I I I I I MP?;{\Jlt~N!J9 Engineering & Enl'ironmenral So/111/ons g n d D I t?<:'<:'o>- 0?<:'<:'k .. n . . t?o-10 I I I m LOT!86 Sl1jE I I I NCSU O RU Cl <( 0 a:: g ..r-REX. HOSPITAL a: w O LAKE BOONE TRAIL .::i -J llJ WADE. AVE. EXTENSION lb CARTER-FlNLEY STADIUM , .~~.._~._ ME:OUN RESIDENCE. I I I I I I I . I OLD TRINITY ROAD I ~ I STA~ FAIRGROUNDS . Figure 2. 1 North .Carolina State University Lot 86 Site Vicinity Map C • I I I I I •• ' •• Iii MW-45 Iii MW-15 MID-ATLANTIC ASSOCIATES, P.A. RALEIGH, NC -CHARLOTTE, NC ---PHILADELPHIA, PA e MW-32 MW-JO Iii lhlW-JI ,•-•-•----~ l ,. x-x-x-,c -~-·----~ ',(--',(----.-~~~~~~:<(.,,_:A~ -27A ii!0MW-2 7 -OJ W-OJB 1A -OJA ,.l,IW-OSB fl MW-29 ~-OS -NEW AQUIFER MW-38Sl!lli!MW-J60 · PUMPm:ri_ TEST 0 ,.lllMW-09 "'MW-355 eMW-350 LOT 85 SUPERFUNO SrTE SITE MAP FOR GROUNDWATER REMEDIAL · DESIGN NCSU-LOT 86 RALEIGH, NORTH CAROLINA REFERENCE: SEE "NOTES:" !.£GENO MW-14 Iii Iii MW-29 MONITORING WELL LOCATION i!I MW-15 MONITORING WELL CLOSED IN JULY 1995 FENCE ~ WOOD LINE WASTE BURIAL AREA Norrs: MAP PREPARED BY GEi CONSULTANTS IN OCTOBER 1995, ♦ SrTE W,P BASED ON SURVEY DRAWINGS "WELL ANO FEATURE LOCATIONS," DATED JULY 19, 1997; "ROAD LOCATION .ANO DRILL POSmON LOCATION," DATED NOVEMBER 18, 1997: ANO •MONITOR WEl.1. ANO HEADWALL LOCATION w.p• DATED AUGUST 4, 1998; ALL BY MURPHY SACKS. ♦ WASTE BURIAL AREA PER MARSHALL MILLER ,II ASSOCIATIES, MARCH 1998 • LOCATIONS OF CLOSED WELLS MW-18, MW-19, ANO MW-20 PER NCSU MEAS, MARCH 15, 1993. . 01-01eso2 DRAWN: DATE: MAY 1999 OFT CHECK: SCALE: 1" = 1 oo· ENG CHECK: JOB: O99RO769.OO APPROVAL: DWG: 2.2 1998 1999 . -2000 8/17 2/1 2 '2 ' 3 ~ .,._ 3'3 3'<4--3'10 3/11 3'12 5 '8 5,.,_.. 17 8'18-7 '29 1 "' 10/21 10/22 12 23 12 '24 12'27 • '18 • 18 4/21 4 24 8'2 8 ~ e '23 e '28 8 '21 8"21 BEGIN <:ti COHTRACroR SEARCH -- RD/RA CONT!lACTOR SELECTION PROC lENTATM: SEI..ECTION ~ ~RCJV.l,L OF CONTRACTOR RECEM: N'Pfl!NN.. FROM EPA - I ISSUE RO/RA CONTRACT = :tt PLANS AND PRELIMINARY DESIGN I WORK PLAN SAMPUNG ANO ANAL'!'SIS Pl.AN •. ---· - -... •---------------. ---·-·. -------· .. -.... -. -----------· -----···--·-----·-·· I H&s Pl.AN EPA Pl.AN REV & APPR<NN.. ,,., 1::1::1 -------·-------------. --- ---·----------~ ------------------------------------FIEID DATA COU£c'TKJN -I 1±1:l RESULTS OF DATA ACQUISITION .. I DESIGN CRITERlf, REPORT PREI.JMINAR'I' PLANS ANO SPECS • PERMIT PLAN , I EPA N'f'RWN.. OF PRELIMINARY llfSICN - PREFllW./FlNN.. DESIGN . I COIIPLEIE DESIGN ANALYSIS FINN.. PLANS ANO SPECS I FINN.. CONSTRUCTION SCHEDULE . & COST ESllMAn: RA PUNNING (AU. PLANS) I EPA RE\'ISION OF FINN.. DESIGN EPA REVISION OF RA Pt.ANS I . MOOfFICATlON OF RA PlANS l .. . PUNS TO EPA-SCHEDULE CONFERENCE - ttttl I PRECONSTRUCTION CONFERENCE - CONSTRUCTION IMPu:MENTA110N . II ·-n, f ' I -/ol 1998 ~~ CRITICAL PATH MILESTONE SCHEDULE DRAWN: DATE: NOVEMBER }Re Enw.t0Rffl9RfQ,t .Sotblt,•on& .PsgpJB .. GROUNDWATER REMEDIAL DESIGN DFT CHECK: SCALE: NTS NORTH CAROLINA STATE UNIVERSITY-LOT 86 ENG CHECK: JOB: 099R0769.00 ' RALEIGH, NORTH CAROLINA MID-ATLANTIC ASSOCIATES, P.A. APPROVAL: DWG: 4.1 - RN..EJGH, NORTH CAROUNA-CHARLOTTE,:NORTH CAROLINA I REFERENCE: I .. I I I I' I I I - I I I -TABLES I I I 0 I I I --- I I M!1?;{\f,~~N!JS:. l:nginccnng & Environmrn/11/ So/111ionJ I: ll I'. I I I I I I I I I , I I I I I Parameters Volatiles fug/Ll 1,1, 1-Trichlorethane 1, 1.2,2-Tetrachloroethane 1,1,2-Trichloretbane 1,1-Dichloroethane 1,1-Dichloroethene 1,2-Dichloroethane 1,2-Dichloroethene (Total) 1,2-Dichloroorooane 2-Butanone 2-Hexanone 4-methyl-2-oentanone Acetone Be'nzene Bromodichloromethane Bromoform Bro mo methane Camon Disulfide Carbon Tetrachloride Chlorobenzene Chloroethane Chloroform Chloromethane Dibromochloromethane Ethyl benzene Methylene Chloride Styrene Tetrachloroethene Toluene Total Xvlene Isomers Trichloroethene Vinyl Chloride cis-1 ,3-Dichloroorooene lrans-1,3-Dichloropropene Semiv!!IB!il~ (IJll:!Ll 1,2,4-Trichlorobenzene 1,2-Dichlorobenzene 1,3-Dichlorobenzene 1,4-Dichlorobenzene 2,2'-oxvbis (1-Chloroprooane) 2,4,5-Trichloroohenol 2.4.6-T richlorophenol Brown and Caldwell G:\7200t7200T4-I 4.XLS TABLE 2.1 Groundwater Analytical Results For Each of Twenty Wells GW-34S(bkg) GW-34D(bkg) GW-35S GW-350 SHAU1lW BEDROCK SHAU.OW BEDROCK <I <1 <I <1 <I <1 <I <l <1 <l <I <1 <1 <1 <I <1 <1 <1 <I <1 <I <l <I <1 <I <1 <I <1 <1 <l <I 2.1 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <ID <10 <10 25 <I <1 <I 5.4 <I <I 3.9 3.7 <I <I <I <1 <I <I <I <I <2 <2 <2 <2 <I <I <I <I <I <I <I 0.56 <I <I <I <I <I <I 20 SI <I <I <I <I <I <I 0.7 <r <I <I <I <I <I <I <I 2.7 <I <I <I <I <I <I <I 1.2 <I <I <I 1.3 <3 <3 <3 <3 <I <I <:I 3.4 <I <I <I <I <I <I <I <I <I <I <I <I <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <IO <30 <30 <30 <30. <10 <10 <10 <IO Page I of9 GW-36S GW-36S-<lui GW-36D SHALLOW SHAU1)W BEDROCK 27 30 <1 200 200 <1 130 140 <1 20 23 <1 19 23 <I <1 <1 <I 2.8 3.1 <I 830 900 1.5 ·1100 1300 <5 5.3 5.6 <5 57 59 <5 15000 16000 <ID 4900 5100 <1 110 120 <1 35 36 <I <I <I <I <2 <2 <2 1500 1800 6.3 21 22 . <I <1 <I <I 37000 39000 63 <I <I <I 3.2 3.5 <I 40 43 <1 7800 8300 <I <I <I <I 120 130 4.8 400 380 <I 700 700 <3 1200 1300 4.0 <1 <I <I <I <I <I <I <1 <I <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <ID <10 <10 <IO <10 <30 <30 <30 <10 <IO <10 I I I I I I I I I I I I I I I I I I I Parameters 2,4-Dichlorophenol 2,4-Dimethvlohenol 2,4-Dinitroohenol 2,4-Dinitrotoluene 2,6-Dinitrotoluene 2-Ch!oronaohthalene 2-{:h!orophenol 2-Methvl-4,6-dinitroohenol 2-Methylnaohthalene 2-Methylphenol ( o-Cresol) 2-Nitroanilinc 2-Nitrophenol 3-3"-Dichlorobenzidine 3-Nitroaniline 4-Bromoohenvlohenvlether 4-Chloro-3-methylphenol · 4-Chloroaniline 4-Chlorophenylphenylether 4-Methvlohcnol (n-Cresol) 4-Nitroaniline 4-Nitroohenol Acenaphthene Accnaohthylene Anthracene Benzo(a)anthracene Benzo(a)ovrcne Benzo(b)fluoranthene Benzo(£,h.i)ocrvlene Benzo(k)fluoranthenc Bis(2-chloroethoxv)methane Bis(2-chlorocthyl)ether Bis(2-.:thvlhexyl)ohthalate Butvlbcn:,:vlphthalate Carbazole Chrvsene Di-n-octvlohthalate Dibcnzo(a,h)anthraccne Dibcnzofuran Dibutylphthalate Diethvlohthalate Dimethylphthalate Auoranthene Auorcne Hexach!orobcnzcne Brown and Caldwell G:\7200\7200'T4-14JCl..S TABLE 2.1 Groundwater Analytical Results For Each of Twenty Wells GW-34S(bkg) GW-34D(bkg) GW-35S GW-35D SHAll.OW BEDROCK SHAU.OW BEDROCK <10 <10 <10 <10 <10 <10 <10 <10 <30 <30 <30 <30 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <ID <10 <10 <10 <30 <30 <30 <30 <10 <10 <10 <10 <10 <10 · <10 <10 <30 <30 <30 <30 <10 <10 <10 <10 <10 <10 <10 <10 <30 <30 <30 <30 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <30 <30 <30 <30 <30 <30 <30 <30 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 41 <10 <10 <10 ·<10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 Page 2 of9 ' GW-36S GW-36S-<iuJ GW-36D ' SHAllOW SHAU.OW BEDROCK <10 <10 <10 <10 <10 <10 <30 <30 <30 <10 <10 <10 <10 <10 <10 <10 <ID <10 <10 <10 <10 <30 <30 <30 <10 <10 <10 <10 <ID <10 <30 <30 <30 <10. <10 <10 <10 <10 <10 <30 <30 <30 <10 <10 <10 · <10 <10 <10 <10 <10 <10 <10 <10 <10 ·<JO <10 <10 <30 <30 <30 <30 <30 <30 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 I I • I I I I •• I I I I I I I I I I I Parameters Hexachlorobutadiene Hexachlorocvclo.,.,,,tadiene Hexachloroethane lncleno( 1,2,3-c,d)ovrene lsoohorone N-Nitrosodi-n-oroovlamine N-Nitrosodiphenylamine Naohthalene Nitrobenzene - Pentachlorophenol Phenanthrene Phenol Pyrene Pesticides /ug/Ll Aldrin Aroclor 1016 Aroclor 1221 Aroclor 1232. Aroclor 1242 Aroclor 1248 Aroclor 1254 Aroclor 1260 BHC, aloha isomer BHC, beta isomer BHC, delta isomer BHC, gamma isomer (Llndane) Dieldrin Endosulfan I Eadosulfan II Endosulfan sulfate Endrin Enc!rin ketone Endrin aldehyde Heptaehlor Heptachlor eooxide Methoxvchlor Toxaphene a-Chlordane g-Chlordane o,p'-DDD o,o'-DDE p,p'-DDT Brown and Caldwell G:\7200\nOOT4--14.XLS TABLE 2.1 Groundwater Analytical Results For Each of Twenty Wells .. GW-34S(bkg) GW-34D(bkg) GW-35S GW-35D SHAU.OW BEDROCK SHAU.OW BEDROCK <JO <10 <10 <10 <10 <10 <10 <10 <JO <JO <10 <10 <JO <JO <10 <10 <JO <10 <10 <10 <JO <JO <10 <10 <10 <JO <10 <JO <10 <10 -<10 <10 <10 <JO <10 <10 <30 <30 <30 <30 <10 <10 <10 <10 <JO <JO <10 <10 <10 <JO <10 <10 <0.05 <0.05. <0.05 <0.05 <I <I <I <I <2 <2 <2 <2 <I <I <I <I <I <I <I <I <I <I <I <I <I <I <I <I <I <I <I <I <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.1 <0.1 0.013 <0.1 <0.1 <0.05 <0.05 <0.05 <0.1 <0.1 <0.I <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.I <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.5 <0.5 <0.5 <0.5 <5 <5 <5 <5 0.013 <0.05 <0.05 <0.05 0.041 <0.05 <0.05 <0.05 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 Page 3 of9 GW-36S GW-36S-du1 GW-36D SHALLOW SHAU.OW BEDROCK <10 <JO <IO <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <JO <10 <10 <10 <10 <10 <10 31 29 <10 <10 <10 <10 <30 <30 <30 <10 <10 "<10 <10 <10 <JO <10 <10 <10 <0.05 <0.05 <0.05 <I <! <I <2. <2 <2 <I <I <I <I <I <I <I <! <I <I <I <I <I <I <I <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 -<0.05 <0.05 -<0.05 <0.05 <0.05 <0.1 <0.1 <0.1 <0.05 <0.05 <0.05 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.5 <0.5 <0.5 <5 <5 <5 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.1 <0.I <0.1 <0.1 <0.I <0.1 <0.1 <0.1 <0.1 I m I I I I I I I I I I I I I I Parameters M~tals; l!a~ farnmetec; (mi:lL:*l 1'vanidc nH (*standard units) Aluminum Antimony Arsenic : Barium Bcrvllium Cadmium Calcium Chromium Cobalt Conner Iron Lead Ma•nesium Man,anese Mercurv Nickel Potassium Selenium Silver Sodium Thallium Vanadium Zinc B,adj2active (l!Cill,l Carbon-14 Tritium TABLE 2.1 Groundwater Analytical Results For Each of Twenty Wells GW-34S(bkg) GW-34D(bkg) GW-35S SIWJ.OW BEDROCK SIWJ.OW <0.02 <0.02 <0.02 6.5 II 7.1 3.8 1.0 0.73 <0.06 <0.06 <0.06 <0.01 <0.01 <0.01 <0.2 <0.2 <0.2 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 6.2 65 <5 <0.01 <0.01 <0.01 <0.05 <0.05 <0.05 <0.025 <0.025 <0.025 3.3 1.2 0.43 <0.003 <0.003 <0.003 5.3 <5 <5 0.37 0.073 0.67 <0.0002 <0.0002 <0.0002 <0.04 <0.04 <0.04 <5 13 <5 <0.005 <0.005 <0.005 <0.01 <0.01 <0.01 <5 19 11 <0.01 <0.01 <0.01 <0.05 <0.05 <0.05 0.078 <0.02 0.025 <500 <500 <500 <500 <500 <5_00 GW-35D GW-36S GW-36S-duJ BFDROCK SHALLOW SIWJ.OW <0.02 <0.02 <0.02 9.2 6.5 6.4 0.94 2.2 2.2 <0.06 <0.06 <0.06 <0.01 <0.01 <0.01 <0.2 0.94 0.96 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 23 6.7 7.8 0.02 <0.01 <0.01 <0.05 0.089 0.087 0.048 0.065 0.068 1.2 1.1 1.1 <0.003 0.021 0.021 <5 <5 <5 0.46 20 20 <0.0002 <0.0002 <0.0002 <0.04 <0.04 <0.04 31 <5 <5 <0.005 <0.005 <0.005 <0.01 <0.01 <0.01 23 <5 <5 <0.01 <0.01 <0.01 <0.05 <0.05 <0.05 0.067 0.38 0.38 <500 <500 <500 <500. <500 <500 Note: Existing monitoring wells were analyzed for volatiles and radiation, only. Newly constructed. wells were analyzed for the T AlJfCL list of parameters and radiation. Brown and Caldwell G:\7200\ 7200T 4--I 4JCI..S Page 4 of9 GW-36D BEDROCK <0.02 10 0.27 <0.06 0.11 <0.2 <0.005 <0.005' 28 <0.01 <0.05 . <0.025 <0.1 <0.003 <5 <0.015 <0.0002 <0.04 15 <0.005 <0.01 20 <0.01 <0.05 <0.02 <500 3890 I I I I I I I I I I I I I I I I I I Parameters . YoJatiles fug/Ll !,1,1-Trichlorcthane 1, 1,2,2-Tetrachloroethane I, 1,2-Trichlorethane I, 1-Dichloroethane I, 1 -Dichloroethene 1,2-Dichloroethane 1,2-Dichloroethene (Total) 1,2-Dichlorool'Ollane 2-Butanooe 2-Hexanone 4-methvl-2-nentanone Acetone Benune Bromodichloromethane Bromoform }lromomethane Carbon Disulfide Carbon Tetrachloride Chlorobenune Chlorocthane Chlorofoan Chloromethane Dibromochloromethane Ethvlbenzcne Methvlaic Chloride Stvrcne Tettachloroethene Toluene Total Xvlene Isomers Trichloroethene Vinvl Chloride · cis-1,3-Dichloroprooene trans-1,3-Dichloropropene S~miv11!11tiles !mi:LLl 1.2,4-Trichlorobenune 1,2-Dichlorobenu,ne 1,3-Dichlorobenu,ne 1,4-Dichlorobenu,ne 2,2'-oxvbis (1-Chloroorooane) 2.4.5-Trichloroohenol 2.4 ,6-Trichloroohenol Brown and Caldwell G:\72Wt7200T,4.UJCLS TABLE 2.1 Groundwater Analytical Results For Each of Twenty Wells GW-37S GW-38D MEDLIN GW-30 SHALLOW BEDROCK BEDROCK SHAU.OW 18 <I <0.5 <0.5 190 5.8 <I <I 16 <1 <1 <1 39 <I <0.5 <0.5 17' <1 <05 <0.5 <1 2.5 <0.5 <0.5 31 <1 <0.5 . <0.5 650 28 <0.5 <0.5 <5 <5 <0.5 <0.5 <5 <5 <0.5 <0.5 110 3.0 <0.5 <0.5 8200 190 <0.5 <0.5 14000 7.3 <0.5 <0.5 280 44 ., <0.5 <0.5 <1 <1. <0.5 <0.5 . <1 <1 <0.5 <0.5 <2 <2 <0.5 <0.5 6400 39 <0.5 <0.5 150 1.0 <0.5 <0.5 <1 <1 <0.5 <0.5 63000 510 <0.5 <0.5 <I <1 <0.5 <0.5 <1 <I <0.5 <0.5 89 <1 <0.5 <0.5 18000 59 <I <1 <1 <1 <0.5 <0.5 5000 5.7 <0.5 <0.5 1500 <I <0.5 <0.5 350 <3 <05 <0.5 1000 20 <0.5 <0.5 3;7 <1 <0.5 <0.5 <I <1 <0.5 <0.5 <1 <I <0.5 <0.5 <100 <10 <10 - <100 <10 <10 - <100 <10 <10 - <100 <10 <10 - <100 <10 <10 - <300 <30 <30 - <100 <10 <10 - Page 5 of9 GW-31 GW-32 GW-33 GW-5A SHAU.OW SIWJ.OW SHAU.OW SHAU.OW <0.5 <0.5 <10 <2000 <I <I <10 <3000 <1 <1 <10 <3000 <0.5 <0.5 <10 <2000 <0.5 <0.5 <10 <2000 <0.5 <0.5 <10 <2000 <0.5 <0.5 <10 <2000 <0.5 <0.5 <10 <2000 <0.5 . <0.5 <10 <2000 <0.5 <0.5 <10 <2000 <0.5 <0.5 <10 <2000 <0.5 <0.5 <10 <2000 <0.5 <0.5 <10 1500 <0.5 <0.5 <10 <2000 <0.5 <0.5 <10 <2000 <0.5 <0.5 <10 <2000 <0.5 <0.5 <10 <2000 <0.5 <0.5 <10 3400 <0.5 <0.5 <10 <2000 <0.5 <0.5 <10 <2000 <0.5 <0.5 <10 30000 <0.5 <0.5 <10 <2000 <0.5 <0.5 <10 <2000 <0.5 <0.5 <10 <2000 <1 <I <10 3000 <0.5 <0.5 <10 <2000 <0.5 <0.5 <10 <2000 <0.5 <0.5 <10 <2000 <0.5 <0.5 <10 <2000 <0.5 <0.5 <10 850 <0.5 <0.5 <10 <2000 <0.5 <0.5 <10 <2000 <0.5 <0.5 <10 <2000 - - -------- - ------------------ I I I I I I I I I I I I I I I I I I Parameters 2,4-Dichloropheool 2,4-Dimethvloheool 2,4-Dioitrooheool 2,4-Dioitretolueoe 2,6-Dioitrotolueoe 2-Chloroo•nhthaleoe 2-Chloropheool 2-Methvl-4,6-dinitrooheool 2-Methv!oanhthaleoe 2-Methyloheool (o-Crcsol) 2-Nitroaniline 2-Nitrepheool 3-3'-Dichlorobeozidine 3-Nitroaniline 4-Bromooheovlohenvlether 4-Chloro-3-methvlphenol 4-Chloroaniline 4-Chlorooheavlpheavlether 4-Methvloheool (o-Crcsol) 4-Nitroaniline 4-Nitrooheool Aceoaohtheoe Aceo•nhthvlene Aothraceoe Beozo(a)aothraceae Beozo(a\nvneae Beozo(b)fluoraotheoe Beaz or• ,h,i)oervleoe Beozo(k)fluoraotheoe Bis(2-chloroethoxv)methaoe Bis(2-chloroethvl)ether Bis(2-ethvlhexvl)ohthalate Butvlben=lohthalate Carbazole rhrvseoe Di-n-octvlohthalate Dibenzo(a,h)aothracene Dibeozofuran Dibutvlohthalate DiethvlPhthalate Dimethvlohthalate Auorantheoe Auoreoe Hexachlorobeozene Brown and Caldwell G:\7200-.TIOOT"-t-4.xi..s : TABLE 2.1 Groundwater Analytical Results For Each of Twenty Wells GW-37S GW-38D MEDLIN GW-30 SHAU.OW BEDROCK BEDROCK SHAU.OW <100 <10 <10 - <100 <10 <10 - <300 <30 <30 - <100 <10 <10 - <100 <10 <10 - <100 <10 <10 - <100 <10 <10 - <300 <30 . <30 - <100 <10 <10 - <100 <10 <10 - <300 <30 <30 - <100 <10 <10 - <100 <10 <10 - <300 <30 <30 - <100 <10 <10 - <100 <10 <10 -- <100 <10 <10 - <100 <10 <10 - <100 <10 <10 - <300 <30 <30 - <300 <30 <30 - <100 <10 <10 - <100 <10 <10 <100 <10 <10 - <100 <10 <10 -- <100 <10 <10 - <100 <10 <10 - <100 <10 <10 <100 <10 <10 - <100 <10 <10 - <100 <10 <10 - <100 <10 <10 - <100 <10 <10 - <100 <10 <10 - <100 <10 <10 <100 <10 <10 - <100 <10 <10 - <100 <10 <10 - <100 <10 <10 -- <100 <10 <10 -- <100 <10 <10 - <100 <10 <10 - <100 <10 <10 - <100 <10 <10 -- Page 6 of9 GW-31 GW-32 GW-33 GW-5A SHAU.OW SHAU.OW SHALLOW SHALLOW ----- ---- - ------- -------- ------- ----- - --- --- ---- --------- - --- - --- --- --------- ---- ---- ----- - - --- ---- --------- ----- - -- -- --- - ----- - --- ----- - --- -------- - --- - ------- I I I I I I I I I I I I I I I Parameters Hcxachlorobutadiene Hexachlorocyclooentadicne Hexachlorocthaoe Iodeno(l ,2,3-c,dmvrene Isopborone N-Ni1rosodi-n-oroovlaminc N-Ni1rosodiobenvlamioe Naobtbalene Nitro benzene Pcntachloroobenol Pbcoaothrcne Phenol Pyrcne Pesticides /ug/IJ Aldrin Aroclor 1016 Aroclor 1221 Aroclor 1232 Aroclor 1242 Aroclor 1248 Aroclor 1254 Aroclor 1260 BHC. alpha isomer BHC, beta isomer BHC, delta isomer BHC, 2ainma isomer (Lindaoc) Dicldrio Endosulfao 1 Eodosulfao Il Eodosulfao sulfate Endrio Eodrin lcctone Eodrin aldehyde Heptachlor H=tachlor eooxide Methoxvchlor Tonnbcne a-Chlordane 2-Chlordaoe p,p'-OOO o,o'-DDE p,p'-DDT Brown and Caldwell G:\720'Jl..7200T4-14JCLS TABLE 2.1 Groundwater Analytical Results For Each of Twenty Wells GW-37S GW-38O MEDLIN GW-30 SHAllOW BEDROCK BEDROCK SHAU.OW <100 <10 <10 . - <100 <10 <10 - <100 <10 <10 -<100 <10 <10 - 570 <10 <10 - <100 <10 <IO - <100 <10 <10 - <100 <10 <10 - <100 <10 <10 - <300 <30 <30 - <100 <10 <10 - <100 <10 <10 - <100 <10 <10 - <0.05 <0.05 <0.05 - <I <I <I --<2 <2. <2 - <I <l <l - <I <l <1 - <l <l <1 -<I <l <l - <I <l <l - <0.05 <0.05 <0.05 - <0.05 <0.05 <0.05 - <0.05 <0.05 <0.05 - 0.016 <0.05 <0.05 - <0.1 <0.1 <0.1 - <0.05 <0.05 <0.05 - <0.1 <0.1 <0.1 -<0.1 <0.1 <0.1 - <0.1 <0.1 <0.1 - <0.1 <0.1 <0.1 - <0.1 <0.1 <0.1 - <0.05 <0.05 <0.05 -<0.05 <0.05 <0.05 -<0.5 <0.5 <0.5 - <5 <5 <5 <0.05 <0.05 <0.05 - <0.05 <0.05 <0.05 - <0.1 <0.1 <O.! - <0.1 <0.1 <0.1 - <0.1 <0.1 <0.1 - Page 7 of9 GW-31 GW-32 GW-33 GW-5A SHAU.OW SHAllOW SHAU.OW SIIAU.OW ------ - ----------------------- - ------------------- - - -------------- - --- - --- - -------- - ------------------------------. ------------------ ---- ----------------- I I I I I I I I I I I I I I I I I I I Parameters Mgta!s; H!!.Sl farnmgtec; (mi:LL;*l Cvanidc · oH (*standard units) Aluminum Antimony Arsenic Barium Bervllium Cadmium Calcium Chromium Cobalt Coooer Iron Lead Mavnesium Manganese Mercurv Nickel Potassium Selenium Silver Sodium - Thallium Vanadium Zinc B.a!!i!iactivt (l!!:iLLl Carbon-14 Tritium TABLE 2.1 Groundwater Analytical Results For Each of Twenty Wells GW-37S GW-38D MEDLIN GW-30 GW-31 SHAU.OW BEDROCK BEDROCK SHAU.OW SHAU.OW <0.02 <0.02 <0.01 -- 6.1 9.4 6.61 -- 3.9 0.37 <0.2 -- <0.06 <0.06 <0.06 -- <0.01 <0.01 <0.01 -- 0.9 <0.2 <0.2 -- <0.005 <0.005 <0.005 -- <0.005 <0.005 <0.005 -- 11 22 <5 -- 0.017 <0.01 <0.01 -- 0.069 <0.05 <0.05 -- 0.078 0.046 0.062 -- 1.8 0.49 <0.1 -- 0.031 <0.003 <0.003 -- 5.6 <5 <5 -- 8.3 0.028 <0.015 -- <0.0002 <0.0002 <0.0002 -- 0.073 <0.04 <0.04 -- <5 7.1 <5 -- <0.005 <0.005 <0.005 -- <0.01 <0.01 <0.01 -- 16 16 7.8 -- <0.01 <0.01 <0.01 -- <0.05 <0.05 <0.05 -- 0.23 <0.02 0.66 -- <500 522 <500 <500 <500 6000 <500 <500 <500 <500 GW-32 GW-33 SHAU.OW SHAU.OW ------ ---- -- -- -- -- -------- -- -- ---- ------ ---- -- ---- <500 <500 <500 711 Note: Existing monitoring wells were analyzed for volatiles and radiation, only. Newly constructed wells were analyzed for the T AUTCL list of parameters and radiation. Brown and Caldwell 0:\7200\nOOT4-14.X:LS Page 8 of9 GW-5A SHAU.OW ----- ----- - -------------- <500 <500 I I I I I I I I I I , I I I I I I I I Parameters V 2l;Jtilgi; {m:L.Ll · I, 1. 1-Trichlorcthane 1, 1,2,2-Tetrachloroethane 1 ,1,2-Trichlorcthane 1,1-Dichloroethane 1,1-Dichloroethene 1,2-Dichloroethane 1,2-Dichloroethene (Total) 1,2-Dichloroorooane 2-Butanone 2-Hexanone .4-methvl-2-nentanone Acetone Benzene B romodichloromethane Bromoform Bromomethane Carbon Disulfide Carbon Tetrachloride· Chlorobenzene Chloroethane . Chloroform Chloromethane Dibromochloromethane Ethylbenzcne Methvlene Chloride Styrene Tetrachloroethene Toluene Total Xvlene Isomers Trichloroethcne Vmyl Chloride cis-1.3-Dichloropronene trans-1.3-Dichloropropene Ra!!i21!~1b:, !11Ci11J Carbon-14 Tritium . TABLE 2.1 Groundwater Analytical Results For Each of Twenty Wells GW-15 GW-IB GW-17 SHAU.OW SHAU.OW SHAU.OW <5 <500 <0.5 <10 <1000 <1 <10 <1000 <1 <5 <500 <0.5 <5 <500 <0.5 <5 <500 <0.5 <5 <500 <0.5 <5 <500 <0.5 <5 <500 <0.5 <5 <500 <0.5 <5 <500 <0.5 <5 <500 <0.5 12 ' 2900 0.7 <5 <500 <0.5 <5 <500 <0.5 <5 <500 <0.5 <5 <500 <0.5 3-0 1600 0.4 <5 <500 <0.5 <5 <500 <0.5 220 20000 4.2 <5 <500 <0.5 <5 <500 <0.5 <5 <500. <0.5 22 4600 1.0 <5 <500 <I <5 · <500 <0.5 <5 <500 <0.5 <5 <500 <0.5 7.6 350 <0.5 <5 <500 <0.5 <5 <500 <0.5 <5 <500 <0.5 <500 <500 <500 <500 <500 <500 GW-20 GW-09 GW-16 SHAU.OW SHALLOW SHAU.OW <0.5 <I <I <1 <1 <I <I <I <I <0.5 <I <1 <0.5 <I <I <0.5 <1 <1 <0.5 <I <1 <0.5 <1 <1 <0.5 <5 <5 <0.5 <5 <5 <0.5 <5 <5 <0.5 <10 <10 <0.5 1.1 <I <0.5 <1 <I <0.5 <l <I <0.5 <I <I <0.5 <2 <2 <0.5 <1 <I <0.5 <1 <I <0.5 <I <1 25 5.5 1.8 <0.5 <I <I <0.5 <I <I <0.5 <I <1 <0.5 2.2 1.7 <I <I <I <0.5 <I <I <0.5 <1 <1 <0.5 <3 <3 <0.5 <I <I <0.5 <I <1 <0.5 <I <1 <0.5 <I <1 <500 - - <500 -- Note: Existing monitoring wells were analyzed for volatiles and radiation, only. Newly constructed wells were anal: for the T AUTCL list of parameters and radiation. I Brown and Caldwell G:\720J.7200T4-I.CJa.S Page 9 of9 u I I I I I I I I I I I I I I I I I I TABLE 2.2 Minimum and Maximum Groundwater Analytical Results For Twenty Wells -- Parameters Volatiles /ug/L} 1,1,1-Trichlorethane 1, 1,2,2-Tetrachloroethane 1,1,2-Trichlorethane I, 1-Dichloroethanc 1,1-Dichloroethene 1,2-Dichloroethane 1,2-Dichloroethene (Total) 1,2-Dichloropropane 2-Butanone 2-Hexanone 4-methyl-2-oentanone Acetone Benzene Bromodichloromethane Bromoform Bromomethane Carbon Disulfide Carbon Tetrachloride Chlorobcnzene Ch!oroethane Chloroform Chloromethane Dibromochloromethane Ethyl benzene Methvlene Chloride Stvrcne Tetrachloroethene Toluene Total Xylene Isomers Trichloroethene Vinvl Chloride cis-1,3-Dichloroorooene trans-1,3-Dichloropropene S~miv!lll!lili::i <m~II.l 1,2,4-Trichlorobcnzene 1,2-Dichlorobcnzene 1,3-Dichlorobcnzene 1,4-Dichlorobenzene 2,2'-oxvbis (1--Chloroorooane) 2,4,5-Trichlorophenol 2.4,6-Trichloroohenol Brown and Caldwell G:\7200.nOOT~I J.xt.s Number· Number of ' of Detectable Analyses Results 21 3 21 4 21 ' 3 21 3 21 3 21 1 21 3 21 6 21 2 21 2 21. 4 21 5 21 10 21 6 21 2 21 0 21 0 21 9 21 5 21 0 21 14 21 0 21 3 21 3 21 11 21 0 21 6 21 4 21 3 21 9 21 1 21 0 21 0 10 0 10 0 10 0 10 ,O 10 'O 10 0 10 .o Page 1 of4 Minimum Maximum of Detectable of Detectable Results Results 18 30 5.8 200 16 140 20 39 17 23 2.5 2.5 2.8 31 1.5 900 1,100 1,300 5.3 5.6 3 110 25 16,000 0.7 14,000 3.7 280 35 36 ------ 0.4 6,400 0.56 150 -- 1.8 63,000 --. 0.7 3.5 40 89 1 18,000 -- 1.2 5,000 1.3 1,500 350 700 3.4 1,300 3.7 3.7 ---- --- ------------------ Frequency of Detection 14% 19% 14% 14% 14% 5% 14% 29% 10% 10% 19% 24% 48% 29% 10% 0% 0% 43% 24%. 0% 67% 0% 14% 14% 52% 0% 29% 19% 14% 43% 5% 0% 0% 0% 0% 0% 0% 0% 0% 0% I i I I I I I I I I I I I I I I I I I TABLE 2.2 · Minimum and Maximum Groundwater Analytical Results For Twenty Wells Parameters 2,4-Dichloroohenol 2,4-Dimethylphenol 2,4-Dinitrophenol 2,4-Dinitrotoluene 2,6-Dinitrotoluene 2-Chloronaohthalene . 2-Chloroohenol 2-Methyl-4,6--dinitroohenol 2-Methvlnaohthalene 2-Methvlohenol (o-Cresol) 2-Nitroaniline 2-Nitroohenol 3-3"-Dichlorobenzidine 3-Nitroaniline 4-Bromophenylphenvlether 4-Chloro-3-methvlohenol 4-Chloroaniline 4-Chloroohenvlohenvlether 4-Methylphenol (o-Cresol) 4-Nitroaniline 4-Nitroohenol Acenaohthene Acenaohthylene Aothracene Benzo(a)anthracene Benzo(alovrene Benzo(b )fluoranthene Benzo(g,hJ)perylene Benzo(k)fluoranthene Bis(2-ehloroethoxy)methane Bis(2-<:hloroethvl)ether Bis(2-ethylhexyl)ohthalate Butvlben7Vlohthalate Carbazole Chrvsene Di-n-ocrvlohthalate Dibenzo(a,h)anthracene Dibenzofuran Dibutvlohthalate Diethylphthalate Dimethylphthalate Auoranthene Auorene Hexachlorobenzene Brown and Caldwell G:\nOO.nOOT4-IJXI..S Number of Analvses 10 10 10 10 10 IO 10 10 10 10 10 10 10 10 10 IO 10' 10 10 10 10 10 10 ' IO IO 10 IO 10 10 10 10 10 10 10 10 10 10 IO 10 IO IO IO IO 10 Number Minimum Maximum of Detectable of Detectable of Detectable Results Results Results 0 --0 --0 --0 --0 --0 --0 --0 --0 --0 --0 --0 --0 --0 --0 --0 --0 --0 --0 --0 --0 --0 --0 --0 --0 --0 0 --0 --0 --0 --0 --1 41 41 0 - 0 --0 --0 -0 --0 --0 -- i 0 --' 0 --0 --0 --0 --- ' Page 2 of 4 Frequency of Detection 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 10%. 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% I: I I I I I I I I I I I I I I I TABLE 2.2 Minimum and Maximum Groundwater Analytical Results For Twenty Wells ... . . -.... -.. Parameters Hexachlorobutadiene Hexachlorocvcloocntadiene Hexachloroethane Indeno(l ,2,3-c,d)ovrene Isopborone N-Nitrosodi-n-proovlamine N-Nitrosodiohenvlamine Nanbthalene Nitrobenzene Pentachloroohenol · Pbenanthrene Phenol Pyrcne Pesticides (ug/Ll Aldrin Aroclor IO I 6 Aroclor 1221 Aroclor 1232 Aroclor 1242 Aroclor 1248 Aroclor 1254 Aroclor 1260 BHC, aloha isomer BHC, beta isomer - BHC, delta isomer BHC, gamma isomer (Lindane) Dieldrin Endosulfan I · Endosulfan II Endosulfan sulfate Endrin Endrin ketone Endrin aldehyde Heptachlor Heotachlor enoxide Methoxvchlor Toxanbene a-Chlordane g-Chlordane o,o'-DDD p.p'-DDE p,p'-DDT Brown and Caldwell G:\7200.7200T~13.XU Number of Analyses 10 IO IO IO IO IO IO IO IO 10 IO IO IO 10 10 IO 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 IO 10 10 10 Number Minimum Maximum of Detectable of Detectable of Detectable Results Results Results 0 --0 -- 0 --: 0 --1 570 570 0 -- 0 --2 29 31 0 --0 -- 0 -- 0 -- 0 -- 0 - - 0 -- 0 -- 0 - - 0 -- 0 --- 0 -- : 0 --0 -- 0 -- 0 -- 1 0.016 0.016 1 0.013 0.013 0 -- 0 -- 0 -- 0 -- 0 --: 0 --0 --0 -0 --:o --1 0.013 0.013 1 0.041 0.041 0 ---0 -- 0 -- Page3 of4 Frequency of Detection 0% 0% 0% 0% IO% 0% 0% 20% 0% 0% 0% 0% 0% 0% . 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 10% 10% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 10% 10% 0% 0% 0% I I I I I I I I 'I I I I I I I I I I TABLE 2.2 Minimum and Maximum Groundwater Analytical Results For Twenty Wells . ·····--· -· Parameters M~tal~; Blllie fl!rametec; (m!llL;*l f'vanidc nH (*standard units) Aluminum Antimonv Arsenic Barium Bervllium Cadmium Calcium Chromium Cobalt Con~ Iron Lead Maonesium Man~anese Mercnrv "Nickel Potassium Selenium Silver Sodium Thallium Vanadium Zinc B,adi2activ~ (lll:i/L) Carbon-14 Tritium Note: Existing monitoring wells were anal: for the T AL/TCL list of parame1 Brown and Caldwell G :\72.00iTIOOT ~ lJXLS Number Number of of Detectable Analvses Results ' 10 0 10 10 10 9 10 0 ' 10 1 10 3 . 10 0 10 0 ' 10 8 ; 10 2 10 3 10 6 10 8 10 3 10 2 10 8 10 0 10 1 10 4 10 0 10 0 10 7 10 0 10 0 10 . 7 19 1 · 19 3 I Page4 of 4 Minimum Maximum of Detectable of Detectable Results Results 6.1 II 0.27 3.9 -- 0.11 0.11 0.9 0.96 --- 6.2 65 0.017 0.02 0.069 0.089 0.046 0.078 0.43 3.3 0.021 0.031 5.3 5.6 0.028 20 0_073 0.073 7.1 31 -- -- 7.8 23 -- - - 0.025 0.66 522 522 711 6000 Frequency of Detection 0% 100% 90% 0% 10% 30% 0% 0% 80% 20% 30% 60% 80% 30% 20% . 80% 0% 10% 40% 0% 0% 70% 0% 0% 70% 5% 16%