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HomeMy WebLinkAboutNCD980602163_19961217_Warren County PCB Landfill_SERB C_Joint Warren Co. - State PCB Landfill Working Group, 1996-OCRN.C. ENVIRONMENTAL CAUCUS 1•• To: ENVIRONMENTAL CAUCUS From: John Runkle RE: NEXT MEETING IS TUESDAY, JANUARY 14, AT 2 P.M. facilitated by John Runkle P.O. Box 3793 Chapel Hill, N.C. 27S1S 9 I 9-942-0600 (o&f) jrunkle@mindspring.com December 17, 1 996 The next meeting of the Caucus is Tuesday, January 14, from 2 - 5 p.m., at the office of the Wildlife Federation, 1024 Washington St., Raleigh. Call 919-833-1923 for directions. The agende items for the 1 /14 meeting are the environmental agenda and Green Budget for 1997 session. We are starting at 2 p.m. for a presentation by representatives of Wildlife Resources Commission and Division of Water Quality on critical habitat and endangered species (where are we, were do we need to be); contact Jane Preyer, EDF, 919-821-7793. From the 12/12 meeting: The Institute for Southern Studies has created Democracy South for education on campaign reform and related issues. --The Alliance for Democracy has sent letters to Gov. Hunt and Speaker Brubaker to remove Pearce (Gov. 's campaign advisor) and Shumaker (Brubaker and Republican Party's PR consultant) from providing PR services for Farmers for Fairness, a hog industry group. Pearce has removed himself. Contact Pete MacDowell, 919-967-1699. NC Health and Environment Community Center by Environmental Resource Program (attached). --The Z. Smith Reynolds Foundation has issued a request for proposals for "electronic networking alliances" for direct on-site and on-call periodic technical support plus $5,000 grants for equipment, software and related staff costs. Deadline: February 15. Contact Andrew Foster Connors, 919-932-4743 or afc@zsr.org. The Science Advisory Board in Warren County has found that State agency staff falsified documents at the PCB landfill, did not install required leachate collection systems, and routinely vents PCB to the air. More on this soon in a media outlet near you. Dayne Brown is retiring from Radiation Protection Division; he has been an open and unbiased regulator who would not let the licensing decision on the rad dump be a political one. --LLRW Authority has enough funds until June; rad dump has cost $93.2 million already and may require generators to fund the remaining at least $80 million required to finish licensing. -- Several groups are complaining to the Southeast Compact about its new "stakeholders" group made up of utilities and regulators (i.e., no citizens). Contact Mary Mac Dowell, 919-542- 4878. The NC Environment.al Caucus is sponsored by the NC Solar Energy Association and funded by the Beldon Fund. Recommendations are being made for Steve Levitas's replacement. Contact Raine Lee, 919- 933-7575. ~ · VICTORY ON DURALEIGH --Governor Hunt finally made the decision to stop the road running through Schenk Forest next to Umstead State Park. Now we need to make sure it is eliminated from DOT's plans and budgets. The Audubon Society is opening up the NC office of the national group; will focus on stream, wetland and forest habitats. Contact Henry Hammond, 919-834-9573. BREDL reported on the widening of Rt 16 through Glendale Springs; the BREMCO power line over 3-Top Mountain in Ashe County, and the citizen campaign against the timber sale on Bluff Mountain (Madison County). Contact Janet or Lou Zeller, 910-982-2691. Erick Umstead reported on the victory before the Pesticide Board on groundwater report; for regulators, "the truth is a slippery slope!" Legislative issues --Bill Holman distributed the draft of the Sierra Club/CCNC agenda, to be finalized in late January. Highlights (and lowlights) are Transit 2001, marine fisheries, backlash on wetland rules and Neuse buffers, local zoning of hog operations, utility restructuring, attack on groundwater through "risk analysis," our response to hurricane, return of audit privilege, attack on third-party appeals, campaign finance reform, repeal of tax credit for chip mills, repeal of Administrative Rule Review Commission, attack on watershed protection act. Contact Bill at 919-755-1329 for a copy. John Runkle presented early draft of green budget/green scissors. Several groups have submitted recommendations on park staff funding, Transit 2001, saltwater fishing licenses, p!ant protection and non-game species, and sustainable agriculture practices. Scissor items are LLRW Authority, the hog slaughterhouse at NCSU, the beaver control program, DOT boondoggles (Duraleigh Road will save $52 million),, the chip mill tax credit, Randleman Dam, and the Administrative Rules Review Committee. A draft should be ready by next Caucus meeting. KEEP THOSE SUGGESTIONS COMING IN. NC RISK ANALYSIS FRAMEWORK ISSUES FORUM will be held January 22 at NIEHS in the Research Triangle Park. The risk analysis framework is expected to be used in all soil and water cleanups, including UST and brownfields. While attendance is by invitation only, John Runkle was given 1 2 invitations for the environmental community. Please contact John if you are interested in attending. For a copy of the Draft Framework or info about the Forum, contact Sharron Rogers at 919-733-2178x222 or rogersse@wastenot.ehnr.state.nc.us ~ I '-'•/•~ " -/ .L. .,.: I .,._,.._, ,_, . ._,. J. 1 Air Quality Division December I 0, 1996 J\!EMORANDUM TO: I ,aura Burler, Assistant Chief. Permitting Section $) FROM: Tom Anderson;---&reteorologist, AQAB THROUGH:~ Roller, Supervisor, AQAB SUBJECT: Dispersion Modeling for \Varren County PCB Landfill VVarrenton, NC ·warren County Per your request, T have conduct,:::d a screening-level dispersion modeling analysis for emissions of PCBs at the Warren County PCB Landfill. Potential emissions of PCBs occur from a single gas vent located in the center of the landfill. r-/axirnum modeled impacts ,vere less than 0. 1 %1 of tlle annual AAL specified in NCAC 20, l 100. E:nissions of PCBs occur from a 4-i.ncb diameter PVC standpipe protruding through the cap of the landfill which is used to vem biogcnic emissions from the facility. Emissions arc expected to occur at or near ambient temperature with an assumed exit velocity of .0 l m/s (due to the J,.,.,,.., ... J p,1,:1~tii11.i'!:, .mi,). Afi !ll!~iuuiu111. 11ruuo of IJ.l o f1 grumc/ooo. (obtain1ud from thi FP .'Ii research study ]Xiper) was used in the analysis. SCR EEN3 (96043) was used to evah.:ate simple terrain impacts from the vent. Since the land around the landfill i:; generally of lower elevation and due to t.he lo\"' relec.:se height and ambient namre of the emissionsJ complex terrain was not modeled, Receptors were placed at the closest distance to the fence line ( 45 meters) and extended outward to approximately 3,000 meters. The maximum impact of 7.4 e-7 mg/m3 occurred at the fence line and is well below the annual .A.AL of8,3 e-5 n1g/m3. MEMORANDUM TO: Linda Rimer Henry Lancaster FROM: Bill Meyer SUBJECT: PCB Landfill December 9, 1996 During the weeks of November 11-15 & 18-22 and December 2-6, a reporter, Mark Benjamin, with the Washington Publication Inside Superfund, has called Mike, Pat_: and myself concerning the Warren County PCB Landfill. Mr. Benjamin, off the record--his choice, provided information that Joel Hirschhorn is apparently disseminating all the information, reports, and correspondence generated on the PCB Project to select national networks of sympathetic organizations. Mr. Benjamin intends to include articles/reports on the PCB Project based on Hirschhorn's reports and the State's response in future issues oflnside Superfund. It is my perspective that national focus on the PCB Project has been initiated and will gain momentum with Mr. Hirschhorn's active support. This effort is consistent with Mr. Hirschhorn's performance and shift in strategy to confrontation and antagonistic relationships with the State and EPA. It is my perspective that the shift in strategy is based on Mr. Hirschhorn' s knowledge and experience that typical risk and cost beneficial remedy considerations would result in a safe landfill (remove water, repair and monitor) rather than detoxification. It is also my opinion that Mr. Hirschhorn is aware that detoxification will not be based on technical merit. Detoxification, as currently proposed by the Working Group will cost $20 to $30 million. In order to obtain this level of funding, political, social and moral considerations will be required, and must prevail. Mr. Hirschhorn is very aware of this and very astute at persuing this strategy. I am also convinced that this strategy will effectively eliminate Environmental Justice as a consideration for funding. The network that Mr. Hirschhorn has in place is a grass roots environmental network and not closely associated with E.J. The Division needs guidance on how to proceed under the situation(s) that exist on the PCB Project. This guidance needs to come from the most appropriate level of government in order for short term and strategic policies to be developed and implemented in a timely manner. MEMORANDUM TO: Henry Lancaster Linda Rimer FROM: Bill Meyer December 9, 1996 SUBJECT: PCB Landfill -Specific Suggestions for Department Budget and Other Considerations I. Provide Funding for An Independent State PCB Project Leader. (Personal Services Contract@ $100 per hour) (a) Develop recruiting process at Department level on a priority basis. (b) Recruit project leader with impeccable credentials with respect to scientific, academic, experience and credibility with environmental and technical constituents. ( c) Project Leader Suggestions: Dr. Daniel A. Okun -served as chairman of 1984 Intergovernmental Working Group on PCB Detoxification; Milton Heath - Institute of Government; Jake Wicker -Retired Institute of Government; Steve Smutko or Leon Danielson -NCSU Cooperative Extension Service/Natural Resources Leadership Institute; Dr. Robert G. Lewis -US EPA -RTP -Air Measurement Research Division -and member of 1984 Detoxification Work Group; or other person with equivalent credentials. (d) The function of the Project Leader would be to evaluate comments/recommendations from all sources on the PCB Project and provide recommendations to Secretary Howes. ( e) The Project Leader would be provided staff resources for information needed to make recommendations. If a Single Project Leader is not Appropriate then: II. Provide Funding and Process (selecting and implementation) for a Panel of Experts to Advise the Administration/Department on the PCB Detoxification Project. The Panel should include: Dr. Jenny Webber-NCSU expert on fate and transport of chemicals in soils; Dr. Dan Okun-water quality expert; Dr. Robert Lewis-air expert on PCBs; Dr. Greg Richardson-engineering expert on landfill; and George Bain, hydrologist. III. Appoint a team of Department technical experts to review data and provide options, comments and recommendations to the Independent State Project Leader or Panel of Experts. The team should consist of a landfill expert (DWM), hydrologist (DWM), toxicologist (DWM or Epidemiology), water quality (DWQ), air quality (DAQ) and chemist (DWM or Environmental Science Lab). The appointments should be made by the Secretary and define time, schedule, priority, mission/goals for the team. IV. The Department should appoint and provide funding for a peer review team for the information, data and recommendations proposed by staff and science advisors. (The peer review team could be/should be the same members of the panel of experts if the panel is not implemented). V. The Department should consider the following budget items in priority order for the PCB Landfill: (I) $200,000 -Capital improvements for automated pumping, collection, treatment and on-site irrigation of water in landfill (2) $25,000 -Per year for 2 years for waste water treatment plant operator for removing water from landfill (3) $50,000 -Per year for 2-year budget for PCB, dioxin, Furan, VOCs, BNAE, and metal analysis for all media sampling stations (air, water, sediment, soil, landfill contents). (4) $10,000 -Air monitoring equipment including collection and sampling devices. (5) $10,000 -For analysis of PCB, dioxin, furan of air sampling/monitoring. VI. The Department should evaluate the existing membership of the joint Warren County/State PCB landfill working group and make modifications essential for facilitating progress on detoxification recommendations. Modifications should include: 1. Decrease the number of members to 10 or 12. 2. Not reappoint members of the same family to the working group. 3. Recognize members that have facilitated the process by attending and participating in a positive manner by reappointment. VII. The Division Strongly Recommends Immediate Implementation of the following: ( 1) Remove, treat and irrigate water in the landfill in accordance with the TSCA approval/permit. The water in the landfill is the most threatening environmental factor with respect to releases. This should be implemented regardless of any working group members who might oppose it. (2) Immediately evaluate the surface cap/liner for gas leakage (using existing equipment). (3) Immediately install a weather station to include rainfall and pressure. ( 4) Immediately measure pressure and water level fluctuations (using existing equipment) and continue to monitor on at least a weekly basis. Joint PCB Landfill Working Group October 31, 1996 Press Conference Outline I. Dollie Burwell, Co-chair Joint PCB Landfill Working Group: (approx. 2-3 minutes) A. Introduction B. Historical context C. Governor Hunt's promise D. Environmental Justice E. Introduction of independent scientist, Dr. Joel Hirschhorn II. Dr. Joel Hirschhorn, Independent Scientist, Joint PCB Landfill Working Group (approx. 3 -5 minutes) A. Declaration of Detoxification Technology Feasibility B. Assessment of Clean-up Process/State's Criminal Non-Compliance C. Introduction of colleague, Dr. Pat Barnes Ill. Dr. Pat Barnes, Independent Scientist, Joint PCB Landfill Working Group (Approx. 3 -5 minutes) \ A. Condition of landfill / rtovi-c~,,,-~ B. Cost of detoxification cleanup C. Environmental justice for citizens of Warren County IV. Deborah Ferruccio, Technical Committee Spokesperson, Joint PCB Landfill Working Group (approx. 1 minute) A. Conclusion 8. Appeal for support from North Carolinians for environmental justice for Warren County ~ v -1 y-9ic Youth Representatives to Joint Warren County/State PCB Working Group Mary Powell Rt. 1, Box 653 Littleton, NC 27850 919-586-6860 Jaime Wallace Rt. 2, Box 73A Macon, NC 27551 919-257 -1195 Dinika Richardson (send to attention of Ms. Naomi Allen) Warren County Middle School Highway 158 Bypass Warrenton, NC 27589 Angela King 463 Baltimore Rd. PO Box 102 Warrenton, NC 27589 919-257-3438 New Address for Rev. Leon White Rev. Leon White 8500-203 Olde Station Dr. Raleigh, NC 27615 919-870-1223 919-417-4449 (mobile phone) .. .r-.. I ~:--· ~ cl C • .... :~. I -~-..... ~, ,.'!..' .' -...... 5 STATEMENT OF DR. JOEL S. HIRSCHHORN, SCIENCE ADVISOR, WARREN COUNTY PCB LANDFILL WORKING GROUP October 31, 1996 Raleigh, North Carolina My decision to issue the Declaration of Detoxification Technology Availability was deemed necessary because it had become clear to me that the state of North Carolina had been delaying the efforts by the Working Group to complete the current project to assess, test, and select detoxification technology. As a professional, once it became clear to me that detoxification technology suitable for this site was commercially available I was ethically obligated to inform the Working Group on this crucial issue. This was necessary because on October 20, 1982 Governor Hunt had made a commitment to detoxifying the site and predicated future detoxification of the landfill on appropriate and feasible technology becoming developed. Such technology has been developed, demonstrated, proven, and fully commercialized. Now the issue is not whether detoxification can be done, but whether the state is prepared to honor its original commitment to citizens. There is evidence that the state has known for several years that such detoxification technology has become available. My decision was also supported by my recognition that the state had failed to meet its extensive legal obligations imposed by the U.S. Environmental Protection Agency when the state's decision to construct the landfill was initially made. The EPA approved the landfill and provided federal funds for it on the basis of considerable technical requirements for construction, operation, monitoring, and maintenance of the landfill by the state. These requirements were very important, because the location of the landfill was far from ideal. But the state has not effectively policed itself and the EPA has not provided effective oversight and enforcement of the landfill's permit requirements. The result is a landfill that no longer can be assumed to be "safe and secure" as Governor Hunt promised in 1982, but that has become increasingly unsafe. Now that detoxification is available, the state should expeditiously remove the landfill hazard from the Warren County community that opposed it in the first place as being unsafe. There are, in fact, two commercially available detoxification technologies. One of these was invented by EPA scientists and licensed to several companies, it is called base catalyzed decomposition (BCD) technology. The other is called gas phase chemical reduction, and it has been developed and commercialized by a company, Eco Logic. Both of these technologies have been fully commercialized and used at full scale, including PCB detoxification at several locations in the United States and elsewhere. 1 A technology screening and assessment by myself concluded that no other treatment technologies can meet all of the requirements established by the Working Group. Only companies offering the two selected technologies will be given an opportunity to have their technologies bench scale tested at their facilities in coming months, using PCB wastes extracted from the landfill. The testing will be required to follow a protocol approved by the Working Group. The test data will be used to select one company to work with the Science Advisors to the Working Group in developing a preliminary design for the full scale detoxification of the landfill. This preliminary design will assure that accurate cleanup costs will be estimated for consideration by the state legislature. It is anticipated that the total cost of the landfill detoxification will be at the $25 million level or greater, depending on a number of technical factors to be resolved in coming months. Considering the size of the landfill, this is not an unusual cost for a permanent, safe remedy. Neither of these two technologies were proven or available when Governor Hunt's Intergovernmental Working Group on PCB Detoxification issued its report in December 1984 concluded that no detoxification technology was sufficiently proven to warrant use. Summary of professional qualifications: Earned a Ph.D. in engineering from Rensselaer Polytechnic Institute, Troy, New York (1965). Full tenured professor of engineering at the Ufil\'.ersity of Wisconsin, Madison. (13 years) Senior Associate, Congressional Office of Technology Assessment in charge of hazardous waste, Superfund and other environmental issues. (12 years) Testified at dozens of Senate and House hearings. Author of technical books and hundreds of technical papers. Nationally recognized expert in environmental technology. Has served as a technical advisor to many community groups affected by federal Superfund sites or state cleanup sites. Has served as an environmental expert in many legal cases. Has been a consultant to many leading companies (such as IBM, Texas Instruments, Warner Lambert, and Polaroid), government agencies (such as U.S. Agency for International Development, Department of Energy, and U.S. Information Agency) and international groups (such as United Nations Environment Program and Organization for Economic Cooperation and Development). Contact: Phone (301) 949-1235 FAX (301) 949-1237 2 MEMORANDUM TO: To PCB Working Group FROM: Patrick Barnes, P. G., Science Advisor DATE: October 23, 1996 SUBJECT: Amendment to the monitoring well installation RFP I recommend that the Drilling RFP dated September 18, 1996 be amended as follows to include the following language: 1. The diameter of the proposed wells will be 4 inches I. D. 2. The proposed wells will be constructed of type 316L stainless steel. 3. The depths used for bidding purposes shall be 45' for the shallow wells and 90' for the deep wells. 4. If necessary the contractor will attempt to drill past potential shallow obstructions a minimum of three times. 5. The supplemental sampling plan be included as a working plan for the RFP. ... MEMORANDUM TO: PCB Landfill Working Group FROM: Patrick Barnes, P. G., Science Advisor DATE: October 23, 1996 SUBJECT: Amendments to the Draft Sampling Plan Dated, October 2, 1996 It is my opinion that the referenced plan should be amended by the following list of items: 1. Include a table of contents identifying all components of the plan including figures, tables, and appendices. 2. Include the jointly agreed to supplemental sampling and testing plan developed by BF A as an appendix. This is needed to provide critical support to the proposed new testing locations. 3. SECTION ENTITLED "FIELD SAMPLING OVERVIEW" a. Include a description of the project background, as previously agreed to so that the Plan will function as stand alone document. b. C. d. e. f. g. h. Identify who will be the site manager, safety officer, and the individual disciplinary task leaders. Last sentence of the oversight paragraph, change "a site safety ~-- briefing" to a daily site safety briefing. AB%..ra Amend safety plan to include safety issues associated with drilling Dt.J .!)__/'? rJA ~ activities. l~JY~J Change "History of the Site" section of the safety plan to reflect recent analytical data. Add definition as to what constitutes being "involved" as described in the final sentence of the first page. Include a site plan showing the conceptual layout of exclusion zones and safe zones. Define "crucial elements" as mentioned in the third paragraph of the second page. 4. SECTION ENTITLED "ANALYTICAL REQUIREMENTS AND QUALITY ASSURANCE" a. Clarify apparent contradiction in paragraph entitled "Blank Samples." Paragraph states that equipment rinseate blanks will be prepared to check decontamination procedures then two sentences later the text states that equipment rinseate blanks will not be needed. b. Under Chain of Custody subsection, item number one, change shipment to delivery. c. Include a copy of the sample analysis request and receipt of samples form indicated under item number two and three. d: .J Critical portions of each of the standards referenced should be included as an ,~ ~~ appendix to this plan. /4,ve· At the end of this section add the following: _·J ~t} /Y Reporting Procedure-Every laboratory asked in this effort will be instructed not h ~:~ f"'.~f ji} to provide any data, preliminary or final, verbally or in writing t the State unless ~ r(jt' · the same information is provided simultaneously to both Science Advisors. ,j)i? 5. SECTION ENTITLED "LANDFILL CONTENT SAMPLES" ' 6. a. Immediately after "Purpose" include a reference to the location of the samples. b. Change the phrase "a soil sample needs to be taken" to "will be taken." c. Under "Field Sampling Method" include an appendix reference to all necessary equipment and procedures. Under "Sampling Personnel Requirements" describe the proposed "air sampling." Under "Field Equipment Required' include a table listing all necessary equipment. Under "Quality Assurance" add a general description of the anticipated laboratory QNQC. For example what quantity of matrix spikes and matrix spike duplicates are anticipated. SECTION ENTITLED "LANDFILL LEA CHA TE SAMPLES" a. Include field sampling location immediately after "Purpose." b. Third sentence under "Field Sampling Method." What is considered a sufficient sample? c. Under "Field Equipment Required," we may want to consider dedicated samplef'S . 7. SECTION ENTITLED "GROUNDWATER SAMPLING PLAN" A Include "Field sampling locations" immediately after "Purpose." b. Add the word representative before samples in the first sentence of the "Purpose" subsection. c. Under second sentence of "Field Sampling Method," after "Purge the Well" add "field test for equilibration using pH temperature and specific conductance. Add more specific reference to EPA SOPs, i.e., what page number, what paragraph. Also tie to an appendix of this document. The second to last paragraph of "Field Sampling Methods" needs to include a decontamination procedure for submersible pump. Under "Field Equipment Required" State proposed procedure to ensure integrity of samples. 8. SURFACE WATER AND SEDIMENT SAMPLES a. Move subsection on field sampling location to just below "Purpose." b. Under "Field Sampling Location" add the following: the exact location of stream and sediment samples will be determined in the field by the Science Advisors. Add one additional sediment sample location to be collected at the confluence of Richneck Creek and the Unnamed Tributary. 9. SECTION ENTITLED "SEDIMENTATION BASIN SUBSTRATE SAMPLES" a. Move "Field Sampling Locations" to directly after "Purpose." 10. SECTION ENTITLED "CARBON FILTRATION BED SAMPLES" a. Move "Field Sampling Locations" to directly after "Purpose." 11 . ADD SECTION ENTITLED "TEST BORING SOIL SAMPLES" and appropriate sampling and testing procedures. FIGURES a. Add a site location map. b. Add a smaller scale approximately l" = 50' site map. TABLES 1 and 2 a. Add test boring analysis for two horizons at each new location adjacent to the landfill i.e., MWlA, MWS, and MW7 and each of the background wells. b. Add sediment sample at the confluence of Richneck and The . Unnamed Tributary. -/..{)--:.~ <J1L ~LL--1&~-u~ f Wft~ October 21, 1996 To: Technical Committee and Bill Meyer From: Joel Hirschhorn Subject: Evaluation of four proposals on excavation I am using the following criteria: quality of technical plan schedule relevant experience pnce I have scored the four proposals on the basis of 25 points maximum for each criterion. Triangle Environmental quality of technical plan: high (20) schedule: good (six weeks) (20) relevant experience: poor (no explicit PCB experience, little well installation, no detailed information given on subcontractor that could be requested) (10) price: very good ($28,700) (25) total pts. 7 5 CDM quality of technical plan: very high (25) schedule: poor (tluee months) (5) relevant experience: very good (25) price: poor ($83,400) (5) total pts. 60 1 .. , ' Patterson quality of technical plan: poor (some poor thinking, insufficient details) (5) schedule: good (six to eight weeks) (15) relevant experience: medium (no PCB experience) (15) price: good ($47,000) (20) total pts. 55 S&ME quality of technical plan: medium (15) schedule: poor (10 weeks) (10) relevant experience: very good (25) price: poor ($99,502) (5) total pts, 55 Summary: Triangle and CDM have the best technical plans, but Triangle has a much lower cost and faster schedule than CDM. Recommendation: I feel comfortable with selecting Triangle Note: My teclmical recommendations are that: 1. ]be contractor be instructed to maximize the natural water content of the materials extracted from the landfill so that the materials collected for technology testing are representative of the landfill contents. 2. The contractor be instructed to evenly or proportionately distribute the extracted materials to the four or five containers supplied by the state, so that each numbered container is representative of all the materials extracted from the landfill. 3. The contractor be informed that, after filling of the containers, it will obtain a composite sample from each filled container (represented top, middle, and bottom levels) per instructions by the state for laborato1y testing paid for by the state (for PCBs and dioxins/furans). 2 I l • DRAFT [Doris here is what I recommend sending] LETTER TO ELLIOTT LAWS Dear Mr. Laws: The Working Group received a letter from John Cunningham, dated January 6, 1997, apparently in response to our previous letter to you that requested your office to examine various policy related issues concerning the Warren County PCB Landfill. We are disappointed in the response from Mr. Cunningham, which takes the position that EPA Region 4 will be addressing our concerns. When we originally wrote to you we also wrote to John Hankinson, Region 4 Administrator, but expected Region 4 to address our request for a comprehensive fregulatory complianceaudit, not to make the Superfund policy determinations we asked you to examine. The December 20, 1996 letter sent by Mr. Hankinson to the Working Group, in fact, does run make a commitment to address the policy related issues we raised in our request to EPA Headquarters . We remain concerned that Region 4's activities will not thoroughly or expeditiously address our Superfind policy related issues. These are not strictly speaking compliance issues for the state of North Carolina in its conduct as owner and operator of the PCB Landfill. In our original Jetter to you we raised several illustrative questions relating to the centra1 question of whether the PCB Landfill is a Superfund site. These types of questions have much more to do with the activites and decisions of EPA, than with the state of North Carolina. We tried to explain in our original letter to you our understanding that legal documents semed to have imposed National Contingency Plan requirements on the state for the PCB landfill and that together with the CERCLNSuperfund funding provided for the construction of the landfill seemed to indicate that the PCB Landfill had status equivalent to a Nationa1 Priorities List site as which a remedia1 action have been taken. This remains the core question the Working Group wants EPA to answer. We want to know whether this community has a right to expect the full range of benefits offered by the CERCLNSuperfund statute and program. lfEPA Headquarters is ducking this request and handling it off to Region 4, then we want Region 4 to explicitly communicate its commitment to resolving our questions. Nor does this community, already the victim of environmenta1 racism more th~ the benefactor of environmenta1 justice, expect to wait for a long time for offical EPA responses to our reasona1be questions. Thank you for your personal consideration. For Superfund XVIl Conference, October 1996 CONTAINMENT REMEDIES: MINIMIZING HAZARD, NOT JUST EXPOSURE, CUTS LIABILITIES Joel S. Hirschhorn, Ph.D. Hirschhorn & Associates Wheaton, Maryland ABSTRACT An important consequence of the trend · to reduce Superfund cleanup costs has been a definite shift away from treatment to pure containment remedies. The issue that merits more attention, however, is whether reductions in short term costs may be offset by longer term liabilities. Containment remedies that focus entirely on reducing exposures and hence risk are vulnerable to various failures of key components that may not necessarily be prevented by operation and maintenance programs. A sensible alternative is to also include some hazard reduction, especially by in situ technology. By doing so, longer term liabilities associated with various failure modes of containment remedies can be greatly reduced. Corporate accounting systems ignore such liabilities. The insurance industry, large companies, brownfield developers, and the government are currently ignoring liabilities that inevitably will become all too real, because pure containment remedies are not permanently effective. INTRODUCTION Driven by cost reduction the pendulum of remedy selection has swung very far to pure containment cleanups. But short term economic gains may be offset by longer term financial liabilities. A host of failure modes exist for containment remedies, and these are not necessarily prevented by ordinary operation and maintenance (O&M) programs. It was concern about these failure modes that caused various changes in the CERCLA statute in l 986 that were meant to cause greater use of treatment remedies leading to permanent cleanups. For awhile treatment remedies became prevalent But now there is a clear trend back to containment only remedies. For example from FY 92 to FY94 containment only remedies at Superfund sites increased from 22% to 33% of source control Records of Decision, after holding steady from FY88 for several years, following a major decline from over 50% before the impact of the 1986 requirements for treatment remedies. ( 1) What the data do not l reveal is that early in the Superfund program many containment only actions consisted entirely of off site disposal in landfills. But that stopped when the issue of Superfund wastes going to landfills that themselves became Superfund sites surfaced. Now, containment only remedies are typically onsite actions. Technology has not erased the fundamental failure modes for containment methods. From a risk management perspective, it is necessary to understand the choice between reducing hazard versus reducing exposure. Pure containment remedies only address exposure. A better balance can often be reached between near and longer term costs by examining how reducing hazard in combination with reducing exposure can be used. Another aspect of the current condition is that long term liabilities are really not accounted for. Although some cost is allocated to future operation and maintenance activities, these do not really address the high costs for addressing major failures of containment remedies. Companies that have paid for containment cleanups are not carrying on their books any appropriate environmental liability costs caused by the remaining high hazards at the site. HAZARD VS. EXPOSURE A simple and fundamental way to define risk to public health for any cleanup site is to formulate it as: Risk = Hazard x Exposure Hazard refers, for example, to the toxicity and amounts of chemicals, and exposure to how much of a site contaminant enters people through ingestion, inhalation, or dermal exposure over time. To simplify the fundamental choice in remedy selection, a pure containment remedy only reduces risk by reducing current or future exposure to whatever poses a hazard. The risk management capability of a containment remedy depends • on some type of physical barrier between the hazard and possible ecological or human receptors. In contrast, pure treatment remedies reduce risk by reducing hazard through use of some treatment technology, possibly in combination with extraction technology, that removes or transforms the initial source of hazard. Of course, the way to optimize both risk and cost reduction is to envision how some combination of hazard and exposure reduction can be used in cleanups. It must also be recognized that extracting or removing a hazard from a site followed by some form of containment (e.g., land disposal) is not equal to hazard reduction from a systems perspective, because the hazard ( and risk and liability) is merely transferred to another location. RISKY RISK ASSUMPTIONS The problem with pure containment remedies is that they assume that a certain level of risk is achieved through effective containment elements. A New Jersey study recognized this issue and resolved it intelligently. It proposed that state remediation criteria "require an order-of-magnitude more stringent standard when exposure controls are employed. This concept was incorporated in recognition of the fact that these controls may deteriorate and permanent remedies are most desirable. In addition, a maximum residual contaminant level must be achieved when exposure controls are employed. This is to ensure that in the event of a total failure of all exposure controls a minimum level of environmental and public health protection is maintained. This 'safety-net' imposes a more stringent requirement than current regulations." (2) In fact, the maximum risk resulting from failure of the exposure control remedy was specified as 10-4 cancer risk or a hazard quotient of 3 for non-cancer endpoints. Moreover, the system envisioned would create opportunities to remove all future liability. However, one exception was that "TI1e severing of liability recommendation does not apply to exposure control remediation alternatives." Exposure controls were defined as "methods which prevent contact between contaminants of concern and the human population. Exposure controls include slurry walls, liners, fences, ventilation, polymer or clay lined landfill, hydraulic controls, and inimobilization processes which may result in future contaminant releases. Deed restrictions apply." This sophisticated approach is very different than the current Superfund approach and state programs, where pure containment remedies are justified on the basis of poor science and poor risk management. Ignoring the intrinsic shortcomings of containment remedies is penny wise and pound foolish. Land Use 2 Another dimension to this problem is that when containment remedies are used there is likely to be some assumption on future use of the land. Whether the assumption is industrial use for brownfield development or no residential use, the problem is that there are few legal guarantees that any such land use restriction will always be implemented faithfully. EPA and state agencies may not closely monitor or even be able to legally prevent future land uses that are inconsistent with the original containment remedy. This too poses a future liability for the party responsible for cleanup. Moreover, there are major uncertainties for brownfield development involving industrial activities that may directly cause failure of the containment remedy. Over time, site activities could physically harm containment components. Covers and Caps An important example is the use of covers and caps placed on top of contaminated soil. For a containment remedy, it can be assumed that there is no future human exposure because of dermal contact, ingestion of contaminants, or inhalation of contaminants. This is deemed equivalent to a treatment remedy that would have removed and destroyed the contaminants in the soil. Essentially, the key assumption with the containment solution is that there is zero concentration of site contaminants in surface soils after placement of the cap or cover. The longer term liability that cannot be eliminated, however, is that over time various failure modes can make the soil contaminants accessible to humans. There must be a finite probability that such a major failure will occur. No technological component of a containment system can operate at 100% efficiency over all future times. Even the assumption of a functioning operation and maintenance program does not reduce the probability to zero. The reason is that no such program is necessarily 100% effective for all future times. A lack of funding as well as poor implementation may occur. Or there may be some catastrophic failure mode that even a good O&M program will not prevent. O&M programs systematically underestimate or ignore major repair, reconstruction, and replacement needs, and financial accounting systems ignore such costs. The drive to reduce costs has resulted in decisions that have changed the types of covers and caps used as key containment elements. Whether the cover or cap is necessary to prevent human exposure to contaminants, or whether it is meant to prevent water infiltration and contamination of groundwater, there are many negative scenarios for the future. Instead of RCRA Subtitle C hazardous waste caps, increasing numbers of remedies are based on plain soil covers, soil and a flexible membrane liner (FML), or caps where several feet of compacted clay are replaced by geosynthetic clay liners (GCLs). Engineers have a tendency to compare GCLs with compacted clay layers and focus only on advantages of GCLs. They ignore various problems with GCLs, including poor field construction and assembly and various failure modes over time. Simple soil covers have obvious limitations and provide no reliable long term protection. The inclusion of an FML adds a degree of protection, but there are a multitude of recognized failure modes. Subsurface Walls Many pure containment remedies include subsurface barrier walls to keep contaminated groundwater in and/or clean groundwater out. No physical wall, however, can be 1000/o efficient as a water barrier over all future times. While more technology has entered the field to allow walls to be constructed in diverse geological conditions, a cost-cutting tactic is to use partial walls. The concept here is that site investigation information is deemed sufficient to design a wall for a certain, limited length on the basis of known groundwater flow. For example, at the Agrico Chemical Superfund site in Pensacola, Florida, the original Record of Decision prescribed a full barrier wall around the site, as part of the remedy.• But during remedial design it was changed to a relatively small partial wall. EPA ignored concerns about the shallow water table and climatic conditions leading to frequent heavy rainfalls and flooding. Natural Clay Layers and DNAPLs Many containment remedies are based on a natural clay layer in the subsurface acting like an engineered bottom liner system in a landfill. The problem is that natural clay layers are not 100% efficient in stopping the movement of contaminated groundwater downwards to deeper aquifers, unless there is a consistent upward hydraulic gradient across the clay layer. But for DNAPLs, even an upward gradient is not necessarily effective in stopping the downward movement of DNAPLs through the clay layer and into deeper aquifers. (3) Increasingly, attempts to extract DNAPLs are rejected, largely because of limits to pump and treat methods, making the issue of eventual DNAPL movement more important. l11e problem is that natural clay layers have pores that can be large enough to permit DNAPL penetration and movement, depending on the chemical composition and amount of DNAPL. DNAPL penetration is a microscopic, statistical phenomenon that is nearly impossible to document directly. Too many environmental engineers make assumptions that are not valid. For example, using average pore size rather than examining how the largest pores provide transport pathways, and using average DNAPL heights rather 3 than larger values at specific locations. Another aspect of natural clays is that engineers often evaluate the permeability in order to demonstrate that natural clays can offer sufficient containment of untreated wastes. The problem is that virtually any type of laboratory testing of clay permeability produces values that are much too low. The problem is that either the clay is recompacted to form test specimens or cored, undisturbed samples are tested so that vertical permeability is determined. The issue is that in their natural state clay layers are likely to have a layered structure, including high permeability layers, such as sand lenses. Laboratory testing done on undisturbed samples measures vertical rather than three dimensional or horizontal permeabilities, and testing of recompacted samples produces still lower values because all natural high permeability pathways are removed The difference between permeability values measure in situ and such laboratory values can be several orders of magnitude. Laboratory data inevitably predict a level of containment capability that is inaccurate and misleading, especially if recompacted samples are used. In some cases the exact containment function for a site may be consistent with low vertical permeability obtained from cored samples. But even here the problem is that a relatively large number of samples are needed to accurately portray the macroscopic variations in permeability in natural clay formations. Groundwater Monitoring All forms of environmental monitoring are exposure detection, not directly exposure reduction. Proponents of pure containment remedies, for which spread of contaminated groundwater is an issue, place considerable trust in long term groundwater monitoring to detect failures of the containment remedy, including failures of caps/covers, bottom liners and leachate collection systems, pump and treat systems, natural clay layers, and subsurface barrier walls. It is important to note that even the most engineered hazardous waste landfills, meeting stringent regulatory requirements "utilize a flawed technological approach for the development of a landfill containment system that at best only postpones when groundwater pollution occurs."(4) Few pure containment remedies use technology comparable to such engineered hazardous waste landfills. There are many significant problems with long term groundwater monitoring systems. These include: too few monitoring wells to be effective; deterioration of wells over long times; use of chemical testing methods with detection limits that are too high to detect the first indications of contamination; failures of long term O&M programs to function as originally designed. TECHNOLOGY FOR HAZARD REDUCTION The alternative to pure containment remedies are ones that include a sensible, cost-effective degree of hazard reduction through judicial use of in situ extraction or treatment technology. The point is that addressing a relatively small portion of a cleanup site can greatly reduce hazard and future liability. The philosophy of this approach is to recognize that what makes a containment remedy a liability are contaminants that, in the event of containment failure, are the most likely to cause environmental damage or human · ·· health rt~ks. Hence, it is contaminant mobility and toxicity tliat matter most. . It is not necessary to attempt to address all site contaminants of concern, as in a traditional treatment remedy, but only to reduce a large fraction of the intrinsic site hazard through cost-efficient use of in situ technology. With virtually all in situ technologies the greatest cost efficiency is in the early stages of implementation, when the amount of contaminants extracted or treated per unit time is the greatest. In traditional source control treatment remedies technologies are pushed to extremes to satisfy stringent cleanup standards, and 80% of costs may be for addressing the last 20% of contaminants. Hazard reduction looks at the converse, trying to address 80% of the contaminants at 20% of the cost. The goal is to increase the cost of the containment remedy proportional to the amount of reduction in long term liabilities accomplished by the hazard reduction. Consider a simple representation of total remedy costs under two conditions: Containment only: total cost = CS + Pf(F) Containment plus hazard reduction: total cost= CS+ HR+ Pf(FJ CS = cost of containment remedy Pf = probability of major containment failure F = cost of major failure, containment only Fh = cost of major failure, with hazard reduction HR = cost of hazard reduction While CS and Pf may be assumed equal, Fh will be much less than F. The goal is to have HR+ Pf(FJ be much less than Pf(F), so that total remedy cost is reduced through hazard reduction. For example, consider a pure containment remedy based on a cap to address health risks related to contact with or ingestion or inhalation of site contaminants, chiefly VOCs, with a total cost of $5 million. Limited use of SVE in a portion of the site, to extract some 50% of the site's VOCs, adds $1.5 million. The question is whether this incremental 4 cost increase makes sense in terms of the reduction in long term liabilities. Clearly, if the site was located in a remote area, it would not be sensible. But for a site in a populated urban or suburban area likely to undergo increasing economic development, it would make sense, because any future releases of VOCs could cause serious consequences, including public health risks, civil suits and emergency responses, that would cause a high cost of containment failure. Repair of the containment system, possible use of excavation, and potential civil litigation costs could easily exceed $10 to $50 million. It was exactly this logic and scenario that motivated a citizen group to want intentional VOC extraction at the Brio Refining Superfund site in Houston. Large amounts of buried VOCs were in discrete pits and the containment remedy was based on a cap and full subsurface wall. One approach is to define hot spots of contamination for which a traditional ex situ treatment remedy would be used. Although there has been some attention to defining hot spots, such as in EPA's guidance for municipal solid waste landfills (5), for the most part hot spots are underutilized. Part of the problem is that it can be difficult to use site investigation data to accurately define hot spots. In many cases, the site may be much too large or complex to even imagine seeking hot spots. More attention can be given to using site investigation methods that are effective in defining subsurface contamination levels, such as soil gas testing for VOCs. When subsurface sampling is necessary, defining hot spot boundaries is difficult, but not impossible. If hot spots can be reasonably defined, then either in situ technology, such as soil vapor extraction (SVE) or in situ stabilization/solidification, or excavation followed by off site treatment should be examined. At the Bailey Superfund site in Texas, a remedy based on complete soil/buried waste treatment plus some containment was replaced with a containment remedy that addressed some hot spots. Another approach is to examine how in situ technologies can be used as a component to a containment remedy for the entire site. The key concept to use is that a technology does not necessarily have to be used to achieve stringent cleanup levels determined on the basis of risk assessment. Instead, it can be practical to examine how the in situ technology can achieve a major reduction in hazard with less extensive application. For example, SVE can be used to extract a major amount of VOCs and then stopped, once removal rates drop substantially ( even after pulsing), rather than used for long times to achieve some concentration of specified VOCs in the subsurface soil. In other words, the in situ technology can be used not as a source control method, but as a component of a containment remedy. Air sparging can also be applied in this manner. Some engineers hope for hazard reduction through natural degradation processes. But rarely is there data to support a predictable, reliable amount of toxicity loss over periods likely for containment failure. CONCLUSIONS Overreaction seems to be a historic hallmark of environmental activities. The reaction in the late 1980s and early 1990s to high cleanup costs has been excessive use of pure containment remedies. Pure containment remedies are replacing treatment remedies selected previously, as well as being selected in new cleanup decisions. Such remedies are not "permanent'' in any sense, because they leave the original hazards associated with hazardous substances intact at the site. By not reducing hazards, pure containment remedies pose long term risks and liabilities. Long term containment liabilities are currently being ignored from a financial perspective. A more effective strategy is to balance the low costs of containment methods with some hazard reduction. The incremental cost of hazard reduction needs to be balanced against the high, uncertain costs of containment failure and consequent liabilities for additional remediation and possible civil litigation. Ordinary O&M programs do not remove these longer term risks and liabilities of pure containment remedies. Environmental firms conducting Feasibility Studies and Remedial Designs should give more attention to use of hazard reduction components of containment remedies, and where appropriate sound value engineering type analysis to support higher short term costs because of long term benefits. Even with using reasonable uncertainties for future costs, it is possible to estimate costs and benefits to establish the boundaries of sensible hazard reduction measures as part of containment remedies. REFERENCES (I) EPA, Innovative Treatment Technologies: Annual Status Report, EPA-542-R-95-008, 1995. (2) Draft Report of the Environmental Risk Assessment and Risk Management Study Commission, New Jersey, Nov. 1995. (3) Hirschhorn, J. S. Do Natural Clay Layers Really Stop DNAPL Penetration?, Proceedings Superfund/HazWaste West, May 1996, pp.59-67. (4) Lee, G. F. and Jones, A, Superfund Site Remediation by On-Site RCRA Landfills: Inadequacies in Providing 5 Groundwater Quality Protection, Proceedings Superfund/HazWaste West, May 1996, pp.313-329. (5) EPA, Conducting Remedial Investigations/Feasibility Studies for CERCLA Municipal Landfill Sites, EP A/540/P- 91/001, 1991. r "UI I • L.C:1 '1 L.d. V H"LIC"H ECO LOGIC Media Relea!e, ELI Eco Logic Inc. Toronto, Ontario TSE Trading S}mbol for Common Share~: ELI CDN T1adinr: S)n1bol foI Wanants; ELll.WT.A rnurn::: ,~u. • c:t:J.l004t:J..J~o TOXIC CHEMICAL 5PECIAUST5 For lmmediatt Rtltast September 2, 1996 ECO LOGIC AND WESTINGHOUSE TEAM FOR POTENTIAL BULK-SITE CHEMICAL WARFARE AGENT DESTRUCTION ELI Eco Logic Inc. ("ECO LOGIC") nnd We$tinghouse Electric Corporation, Government and Environmental Services of PitUburgh, Pennsylvania have announced that they have signed n teaming agreement under which Westinghouse will act as prime contractor, with ECO LOGIC as subcontractor. upon the ECO LOGIC technology being selected for an 11ward ofcontraet in the U.S. Army"s Alternative Technology Program for Chemical Wnrfnre Agent Destruction. ECO LOGIC and Westinghouse have developed an approach which offeis a sound alternative for application at the bulk chcmieat warfare agent focilitics at Newport, Indiana and Abetdeen. Maryland. The ECO LOGIC Proccu was initially selected in November 1995 by the U.S. Army for further evaluation of its efficacy for the ootruction of chemical Wilrf~ agents. The Company decided to tcnm with the best U.S. corporation to strengthen the breadth and depth of its capability. Dr. Douglas Hallett, Chief Executive Officer of ECO LOGIC said, "ECO LOGIC and Westirtghouse believe that this integrated pl.ant concept will provide a viable altei,,ative method ofmteting the Army's gonls." The US Army has been seeking alternative technologies manue enough to meet the needs of the Chemical Stockpile Disposal Program for the safe disposal of HD and VX. nerve agent stored at Abc-decn Proving GroWld, Maryland, and Newport Army Ammunition Plant. lndi.uia. Based on the technological merits of the ECO LOGIC Pr0te~,. it was one of only three private sector technologies selected for furthcr evaluation by the U.S. National Research Council's Alternative Technology Panel. ECO LOGIC has rclcascu full independent test data to the U.S. Ann~ and the National Research Cotmcil confirming destrucrion of the Army's VX nerve agent, HD blister mmwd and hydrolysed VX nervt: agmt. ECO LOGIC conducted its tests at the U.S. Anny's to:-<lc test facility in Abenlttn. Maryland. Not only were the desttuction results excellent, but no harmful by-products "M:re produced and the process water met applicable drinking w:1tcr st:mdards. ELI Eco Logic Inc. 's business is to solve ~xic chemical problem$ in a safe. ~anent, cost effective manner. The ECO LOGIC Pro<:tsJ it an imcrvative technology that converts on-site, organic hazardous WHtes into reusable or di!>posnble products. this non• incineration proctSS has gained high public and regulatory acceptance. ECO LOGIC's worldwide hv..atdous wnste cleanup marker includes PCBs, elecnical equipment. contnminntcd soils, eh~cal warfare agents, penochemical wastes, cert;iin low level radioactive mi'\ed wastes, and mwucipal sludge. -30- Please contact: Maggie Treanor Assistant to the President/ lnvestor Relations ELI Eco Logic Inc. 143 Dennis Street Rockwood, Ontnrio · NOB 2KO Telephooe: (; 19) 8;6-959 l Facsimile: (519) 8S6-923S Web Site: http://www.eco.togie-inll.com Email: hallett@eco-logic-intl.com 143 Dennis SI., Rockwood, Ontario, Canada. NOB 2KO Rockwood (5191 856-959 l Fax (519) 856-9235 FROM LEN La VARDERA A-0--E NO. 2016640328 Oct. 10 1996 02:07PM P2 TOXIC CHEMICAL Sf>ECIAL/5TS ECO LOGIC ---------1(:«) l'ress Release, ELI Ec:o Logic Inc. Toronto, Ontario TSE Trading Symbol for Common Shares: ELI CON Trading Symbol for Warrants: ELII. WT .A For Immediate Release September 24 , 1996 PILOT SUPERFUND REMEDIATION CONTRACT AW ARDKD TO ECO LOGIC AND SAIC ELI Eco Logic Inc. ('ECO LOGIC") announced today thal it ho, been awarded • contract for pilot-9calc t"c$ting of the ECO LOGIC Process at the New Bedford Harbor Superfund Site in Massachusetts. A pilot-tteale unit will be taken to New Bedford in early November for seven days of on-cite testinc. The contract. valued 11 USS 235,580, has been iuucd by Foster Wheelei Environmental, Inc., the U.S. Environmental Protection Agency's Supcrfund cleanup conuuctor in EPA Region 1, to ECO LOGIC and its U.S. strategic nwkcling partner, Science Applications International Corporation (''SAIC"). Art Shattuck. Vice President of SAIC, indicated, "Based on successful pilot-scale testing RSults at the New Bedford Harbor Superfimd Site, ECO LOGIC will be a leading candidate for the cleanup of the reported 14,000 cubic yards of PCB contaminated sediment" Dr. Douglas J. Hallett. ECO L0GIC's CEO, noted, ''llus represents ECO LOGIC's fust entry into the U.S. Superfuud nwket lhe ECO LOGIC Process is already commerciillly available for the mnediation of~ New Bedford Harbor Supemmd site." The New Bedfurd Hanxr Supcrfund Site pollutants, namely, PCB,, PAH1, and metalc, are the same pollutants which the ECO LOGIC _ l'rocas bas prcviomly trcutcd und destr~ n,e ECO LOGIC rrocess. a non-incineration process, has been previomdy valida1ed and permitted in the United States, Canada, and Austrolia. Significantly, it wu imduated for Superfund Site cleanup by the U.S. Environmmtal P~on Agency under its Supcrfund Innovative Technology EYaluation Program. It is now commcrcialiied with two units constructed and operating for industrial clients in Australia and Canada. El.J Eco Logic Inc.·• business is to solve toxic chemical problems in a safe, pennanent, cost effective manner. The ECO LOGIC Process i9 an innovative lechnology that converts on-site, organic h.uardow Wll!te9 into reusable or disposable products. Thi! non- inc:inc:ration process 1w gnincd high public and regulatory ac«ptan~. ECO LOGIC', worldwide hazardou!I waste clcunup mark.cl includes PCBs, clcctriatl equipment, ronl3Jrun.ll!od soils, chemical warfare agents, pcbochemical wastes, certain low level radioactive mixed wuks, and municipal sludge. -30- Please coniatt; Maggie Treanor Assist.mt to the President/ Investor Relations ELI Eco Logic Inc. 143 Dennis Stred Rockwood, Ontario NOB 2K0 Telephone; (519) 856-9591 Focsimilc: (519) 856-9235 Web Site: hnp://www.eco-Jogic-intl.com Email: halh:tt@cco-logic-intl.com 143 Dennis SI., Rockwood, Ontario, Canada, NOB 2KO Rockwood (5191856-9591 Fax (519)856-9235 1 -:--:2?-1 996 8 :•43 PM FROH August 29, 1996 To : Technical Committee From: Joel Hirschhorn Subject: Recommendations on decision making process and several actions en Process A) My advice is that the TC an.d WG use a more formal means of collllll.unicating requests to the state. There is a need to prepare carefully Mitten memos or letters from the WG to either Bill Meyer or a higher state official. Verbal requests or motions at meetwgs, such. as what happened this week on the issue .I raised about EPA permits for removing materials from the landfill, are inadequate, unless they are followed up immediately by a written document that precisely spells out the details of the request. Details and creating a documented record of requests and responses are very important in these .matters. B) My advice is that the TC adopt a standard procedure for making decisions about actions recoromeuded by the Science Advisors. I am referring to action memos, not :informational memos, nor submission of work products. My recotnDlended process is: 1. The SA faxes an action memo for the TC to the WG office for immediate distribution by fax to TC members and the other SA. 2. The office arranges for a phone conference eall within 24-48 hour.s for the TC to discuss and make decisions on recommended actions. 3. During that call with the SAs, the TC asks questions and discusses action recommendations and either makes decision(s) on action item(s), allowmg followup activities by SA(s), or some other decision is made. Secretary maintains minutes of such calls. 4. Within 24-48 hours: a) As appropriate, the SA(s) faxes a work product to office for distribution to TC (unless instructed to take soine other action directly, such as sending a memo or m.a.king a call to some party on behalf of the TC or WG) to facilitate the TC or WO implementing the decision . OR b) The TC or WG takes final action. Secretary keeps record of exactly what is done. l P. 1 J -28-1996 8 :44PM FROM Ul Federal stratw My advice is that the TC consider and the WG adopt the following strategy to initiate steps to build a case for federal intervention and actions that support the goal of detoxification of the lmdfi.U. My analysis of the history of this situation leads me to conclude that the en.tire strategy of the community has been to depend on eventually obtaining the desired decisions a:od funding from the state. lbis strategy has several disadvantages, not the least of which are: a fundame.ntal conflict of interest the state has between being the owner and operator of the landfill as wen as the .Protector of public health, and all of the difficulties in building a tecbnicaL environmental, and economic case sufficient to obtain substantial state funding . My recommendation is that it is in the community's interest to develop a parallel strategy that is based on the plausibility of forcing federal interest, answers to requests, and various interventions or official positions that provide either pressure on the state to take ce.rta.in actions, or supply important support for what the WG tecolllllleo.ds to the state. There are three immediate action recommendations: a) The WG should submit a written request to the state for a compliance audit and summary report giveu to the WG within 30 days. The WG would ask ve1y specific, carefully c,afted questions, based largely on various federal requirements that the state was required to satisfy. b) The WG would submit a written request to the EPA Region 4 Administrator to conduct an official EPA compliance investigation under TSCA for the landfiJl, based on EPA examination of its records, state reco.rds, and a ucility inspection, if necessary. The need for very expedient implementation would be made. Specific concerns would be identified. c) The WG would submit a Mitten request to Assistant Administrator Elliott Laws at EPA Headquartets for his office to examine specific policy issues under CERCLA/National Contingency Plan by asking key questions affecting potential cleanup of the landfill. The Jetter would cite the details of the agreement between the EPA and the state, in the form of a cooperative agreement that was funded under CERCLA/Superfund. Specific policy determinations would be requested on specjfic issues, such as whether the current form of the NCP applies to the landfill, and whether the statutory requirement for review of the remedy every five years applies. £3) Stratm for RFP for ql,taining a tech.ooJogy vendor The issue is .how to most efficiently follow state requirements for obtaining detoxification technology companies for conducting bench-scale tests and for one selected company to assist the SAs and WG in preparing a conceptual design of the desired ,:er:n.edy for inclusion in the p1<Jposal to the state legislatwe. My idea is to use one RFP to cover both activities to save considerable 2 1 -2.8-1 996 8 : 44PM FROM time. My recommendation is that the WG consider my proposal and fonnally submit it to the state and seek a decision on whether it can be implemented in its present form or how it can be modified to meet state legal requirements. The key components of the proposal are: --The RFP would be described as the solicitation of a contractor that after completing a successfu.1 bench or pilot scale test of detoxification technology will provide professional seivices in developing a oonceptual engineering design of the fullreroedial action at the landfill, mcluding an onsite demo.nstration test prior to full ~ale use of the selected detoxification technology. --The RFP would define the following step& for interested parties; a) Based on information given in the RFP (including site background, aud scope of work for test) 1 to 3 vendors will be selected on the basis ofRubmiUed proposals to conduct a bench or pilot scale test at their own facility on lan.dfill materials provided to them b) After the selected companies submit the required repo.rts on test results ao.d provide any additional infonnation required, one company shall be selected to provide the conceptual des.ign services, based on both. th.e test results, other information provided, and the bids in the company's proposal --The RFP would ask for proposals that must contain c.crtain types of information, including bids for the initial testing and, if selected, for the design services, based on scopes of work for rhe two phases given in the RFP. Technology companies would be urged i11 the Rf'P to select a subcontractor ( such as an environmental design and engineering firm) that has the capabilities to contribute to the conceptual design of the total remedial action based on but not liruited to the detoxification technology. --The state would enter into an. initial contract with the companies selected for the bench or pilot tests. This contract would contain a provision stipulating that the company is being pre- qua)ified or short-listed by virtue ofbemg selected to conduct the test for final selection as the provider of the design services and that no other RFP wm be issued by the state. Subsequently, after one company is selected, the state would enter into the final contract for !he pro,·ision of the design sel'\,ices. 1.1) Detoxificatiop cleanup goals In order to obtain useful bench scale tests1 it '\\'ill be necessary to infom1 potential vendors in the RFP what the numerical goals of the detoxification are for key contaminants. In other words, we Dlll&t specify what level of PCBs and dioxins are acceptable in residual treated materials that would, presumably, be backfilled into the excavated landfill. These levels would be 3 P.3 1-28-1996 8 :45PM FROM the preliminary cJeanup goals (PCGs) or perfonnance reqwrements for waste treatment. They would be given as preliminary ones, mainly because they might be changed after all the test resuJts are obtained ( either mcreased or decreased). The technical problem is deciding on what basis to use for the PCGs. There l'lle two principal approaches. A regulatory cleanup level may already exist that eithe.r mu&t be used or may be used. For examp.le, certain file documents indicate that EPA would require treatment to achieve a level less than 2 ppm for PCBs, but the state may typically require less than 1 ppm (parts pe.r million). Whenevef a state has a more stringent requirement than EP~ the state one prevails. The second approach is to use health risk based cleanup standards. Some risk based concentrations already exist in the fonn of EPA generic Superfund Soil Screening Levels. These. however, are based on certain specific exposure and risk assumptions that may not be completely applicable at specific sites. When they are not, only a site specific risk assessment can generate other numbers. There a.re many tough issues for such risk assessments. Consider PCBs, EPA data reveal a 10·6 cancer risk level for residential soil ingestion exposure of 70 ppb (parts per billion). However, EPA uses .• value of 1 ppm (1,000 ppb) as an SSL and under its PCB cleanup guidance. This means that .i ppm equals a risk of I . 4 x lo-~ ( a tenfold higher risk). But if dioxins are also present, they must be considered. If dioxins only are co.ns.idered, then the 10·6 cancer risk level is 2 ppt (parts per trillion) for cumulative ingestion, inhalation, and dermal ex'})osure to surface soil or 4 ppt if only ingestion is considered. EPA often attempts to use a very high .level of I ppb for soil cleanup decisions, which is blatantly unacceptable. [I do not now have a risk based con.centration for PCBs based on three exposure pathways, which would be less than 70 ppb, possibly around 40 ppb.] If both PCBs and dioxins are present, however, then cumulative risk must be considered, meaning that levels BELOW the 1 o·6 levels obtained for them indMdually would couclaH! with 10·6 cumulative risk. The problem is whether detoxification technologies can achieve very lo•1/ residual contaminant levels corresponding to 10·11 risk levels. Therefore, while PCGs can be set very stringently, actual test data may show that no feasible detoxification technology can. meet them reliably and consistently ( especially with varying waste inputs, in terms of contaminant and water levels, for example). In other words, tbe technical feasibility of detoxification techn.ology for thjs application ·will depend on exactly what cleanup perfonnance requireroeuts are demanded. The more protective the WG wants to be, the greater the probability that no feasible technology can be shown to exist. One of the more subtle issues that must be considered is whether typica.l exposure pathways are relevant for the site after poSt-treatment residuals are backfilled into the la.ndfill. 111 other words, if treated residues are buried in. the ground and cove,-ed with clean soil, th.en there 4 P .4 1-28-1996 8 :4.SPM FROM may be no plausible exposure pathways ( as long as the containment 1eroains effective), because people will not ingest the material, or inhale airborne particles, or have ditcct dermal contact v.i.th the material. There might be some concern about leaching of the contaminants over time into growidwater, but because both PCBs and dioxins have low water solubility and high soil adsorption, such leaching an.d migration will normally result in much higher acceptable levels than those obtained on the basis of cancer risk. EPA often uses this reasoning to justify higher acceptable cleanup levels. In the extreme, it justifies NO treatment because hazardous chemicals are buried in some type of containment system. The WG must decide what cleanup goals to use. Here are some ahematives: --Least stringent: 1 or 2 ppm for PCBs and 1 ppb for dioxins (max 5 x l 0-4 risk) --Stringent: 70 ppb for PCBs and 4 ppt for dioxins ( 4 x 10"6) --Very stringent: 40 ppb for PCBs and 2 ppt for dioxins (2 x 10·6) --Extremely stringent: 20 ppb for PCBs and 1 ppt for dioxins (max l x 1 O.r, risk) [All of these risk figures ignore synergistic effects.] Note that consideration of non-cancer hea.lth effects generally results in higher contaminant levels th.an those obtained on the bas.is of cancer risk assessment. A practical problem is that if the RFP cites very low cleanup levels for PCBs and dioxills in residues., some companies may .not be interested in pursuing the work. Or, companies may pursue the work, but have to increase the intensity of their treatment, or plan on ,etreating some residues, that would increase costs substantially. The incremental treatment cost mcreases for incremental risk reductions can be very large. My recommendation is that the WG use the Stringent alternative above as PCGs, recognizing that the RFP will make clear that the lowest possible residual co.ntaminant levels are desired, consistent with obtaining a cost-effective cleanup, and that the test results from the several vendors selected for tb.e testing phase and other infonnAtion they provide \.Vill be used to se.lect final cleanup goals. After the WG makes a decision, I recommend that the &tate be informed in writing of that decision and asked for its concurrence. (5} lnfog:matioo on :water in landfill A major complication for detoxification is the presence of water in the landfill, because it affects technology performance and cost. There is a need for more complete an.d reliable information from the state to assure that the RFP and design of the bench scale test is adequate. My recommendation is that the WG submit a written request for infonnation to the state. 111e request would be for a technical sUJllIIW)' of all key information on water in the landfill and 5 P.5 1-28-1996 8 :d6PM FROM p 6 ,. . ' . answers to specific technical. questions. Note the interest is NOT on what caused the water, but rather on the details describing the nature of the current water, {6} Biorcmediation I have seen evidence that the state is still pursuing bioremediation as a weans of detoxifying the Lmd.fill. .I have concluded that no form of bioremediation is a candidate for se.Jection as a feasible technology for this application. Three other evaluations over the years also reached that conclusion. Therefore, I recommend that the WG formally request the state to stop all activities related to bioremediation use for the landfill, because their resources are far too limited and are needed for many other m.ore important activities. ,(,; l ., 1J-l ~v~/ .~~ {J-·Y yr i J \\~. f'~ r,,P'~¥ ',t1f~ qf(\;11)~oM'r ( 6 August 9, 1996 MEMORANDUM TO: Henry Lancaster FROM: Bill Meye~_./ Pat Williamson~ SUBJECT: Briefing for Governor on Status of PCB Landfill Working Group Enclosed is the draft memo that Monica prepared for Carolyn Coleman to brief the Governor on the status of the PCB Working Group. We do not know when the Governor was last briefed on the status of the working group, so we prepared a brief background. We included much of what Monica had in her draft report and answered the questions she asked (included in report). We feel that Joel Hirschhorn's comments, contained in his progress report to the working group and dated July 8, 1996, should be included with the other attachments that Monica requested. We are sending this information to you for your review rather than sending it directly to Monica. Thanks, Henry. \ July 2, 1996 MEMORANDUM To : Bill Meyer From: Bob Glaser, Grover Nicholson, Larry Rose, and Pete Doorn RE: Proposed Sampling for the PCB Landfill Mr. Barnes , Science Advisor for the Warren County Working Group, has proposed another sampling program for the PCB Landfill. This program is described in the 6/13/96 draft document titled "Warren County PCB Landfill, Supplemental Site Investigation Plan". Members of the Division staff have reviewed the sampling program and discussed, at length, the program with Mr. Barnes. From the review and the discussions, the staff believes that Mr. Barnes is approaching this site as if little or no previous work had been done. It also appears that Mr. Barnes' approach assumes that the contents of the landfill are in question and a release may have occurred anytime between 1979 and 1996. In response to Mr. Barnes ' proposal , the staff has developed an alternate sampling program. The staff's program will generate data to supplement the existing data . In the development of this plan, the Division staff assumes that: 1) if a release has occurred, then the release is continuous or cyclic; 2) the movement of contaminants would be limited because of their low soluability; 3) the contents of the landfill are known; and 4) the landfill construction and filling procedures are known. After reviewing both sampling programs, one can see that there are significant differences in the approach and scope of work. Mr. Barnes' approach is to sample along each of the contaminant pathways (overland flow and movement via ground water) from the landfill to the adjacent surface water. The scope of work includes: 1) the collection of soil and ground water samples adjacent to the landfill; 2) ground water and surface water samples in each of the draws; and 3) surface water and sediment samples from Richneck Creek and the unnamed tributary. The Division staff's approach considers ground water as the only transport mechanism for the lateral movement of contaminants. The scope of work includes the installation of nine additional wells, to further characterization of the ground water flow adjacent to the landfill, and implementation of a ground water monitoring program. As mentioned above, the staff has discussed the merits of both proposal's with Mr. Barnes. These discussions have helped the staff understand the rationale used in developing Mr. Barnes' proposal, however, they have been unsuccessful in moving us towards a compromise .. One approach the Division/Department may consider in resolving the differences in the two proposals is to hire an independent, third party contractor, to review both workplans. GOAL: NORTH CAROLINA DIVISION OF WASTE MANAGEMENT PROPOSED PCB LANDFILL SAMPLING PROGRAM The goal of this sampling program is to confirm the ground water flow direction in the vicinity of the landfill and monitor the ground water quality downgradient of the landfill. The Division staff considers ground water to be the contaminant pathway of concern for the contaminants in the landfill. SCOPE OF WORK The scope of work includes the installation of nine additional ground water monitoring wells and implementation of a ground water monitoring program. The nine wells would complement the existing monitoring system and should address any unresolved questions pertaining to ground water movement in the vicinity of the landfill. Once the wells are installed, a monthly water level monitoring program should be implemented for one year. The one year monitoring requirement is necessary to evaluate any seasonal variation in the ground water flow direction. At the end of the one year, a ground water quality monitoring program would also be implemented at each of the downgradient monitoring wells and an upgradient well(s). The specific locations for the nine additional wells are identified on the attached figure. The list of constituents to be monitored in the ground water would include each of the constituents on Table 1 (under the heading of groundwater) in Mr. Barnes 6/13/96 draft "Supplemental Site Investigation Plan" . EVALUATION OF DATA After each water level monitoring event and each ground water quality sampiing event, the data would be evaluated to determine if the appropriate zones are being monitored and adjustments to the ground water monitoring program would be made. SITE HEALTH AND SAFETY PLAN FOR WARREN COUNTY PCB LANDFILL Project: Warren County PCB Landfill Operation and Maintenance Off of SR 1604 EPA ID#: NCD 980 602 163 Location: Warren County Project Date: July, 1996 Health Department Official Contacted: Date of Contact: June, 1996 Briefing Date: Debriefing Date: July, 1996 July, 1996 Project Participants:AII project participants have read the Site Health and Safety Plan and are familiar with its provisions. Participants: Title: Signature: Date: Peter Doom Johnny Ford Bob Glaser Pierre Lauffer Grover Nicholson Larry Rose Surabhi Shah Gray Stephens Pat Williamson Harry Zinn Plan Prepared by: Pierre Lauffer, Health and Safety Coordinator Sharron Rogers, Branch Supervisor Reviewed by:tfi!:.e Pie e ~ /. . 'treF, Health and Safety Coordinator B. SITE/\V ASTE CHARACTERISTICS Waste Typre(s) Liqid__ Solid Sludge__ Gas Characteristics Corrosive Volatile Other CHE1\11CAL HAZARDS: Properties PCB mild petroleum odor, resinous Ignitable __ Toxic MCL 0.5 ppb Radioactive Reactive TLV 0.5mg/m3 Federal Action level 50ppm Toxic effects include chloracne, pigmentation of skin and nails, excessive eye discharge, swelling of eyelids and gastrointestinal disturbances. Listed as cancer causing. FACILITY DESCRIPTION: Total Size: 142 acres Landfill Size: 2.54acres Buildings: one storage building on Landfill Site History: Between June, 1978 and August, 1978, roughly 30,000 gallons of industrial waste material identified as PCBs (Arochlor 1260 and 1262) were discharged deliberately along the shoulders of approximately 150 miles of NC Highways. In June, 1979, EPA approved a tract ofland (previously used for agriculture) in Warren County as the disposal site for the PCB-contaminated roadside material. The landfill ( constructed in 1983-1984 and permitted under the Toxic Substance Control Act (TSCA) contains about 40,000 cubic yards of soil contaminated with PCBs. The concentration of PCBs in the landfill ranges from 0-3 l0ppm. C. SITE HAZARD EVALUATION Based on past sampling results, the cap of the landfill does not contain any substantial amount of PCBs. Samples of the leachate from the pond-outlet, near outlet, middle, filter 1 and 2-on the northside of the landfill showed to have between <0. IOppm, <0. IOppm, 0.53ppm, 1.15ppm, 1.45ppm respectively. Samples from inside the landfill (retrieved from the bottom of vent pipe on top oflandfi.11) consists of wet and dry contents and were found to contain 151.8ppm and 301.4ppm PCB respectively. Soil samples from the est side oflandfill (along the side) found to contain 0.22ppm PCB, this was to measure runoff C. SITE HAZARD EVALUATION-CONT. RECOMMENDATIONS: Level of Personal Protection Equipment for work/sampling operations: Modified Level D Indications: Tyvek splash suits Latex safety gloves: inner lining Nitril safety gloves: outer lining Safety boots Chemical protection overboots Safety glasses Long sleeve shirts and pants Those sampling contents of landfill (through vent): Facial splash guard Observers, Media members, work group members, etc. Safety boots Long sieve shirts and pants D. WORK PLAN INSTRUCTION Map attached: YES Perimeter identified: The gate at the entrance to the property is the outer perimeter and is considered the outer exclusion border. Only work DWM team members and authorized members of the media/work group/public are permitted into this area. The fence to the landfill proper will be considered the inner exclusion zone border. Only those who have received a safety briefing and employed the proper PPE for conducting sampling may enter this zone. Persons who are members of the public, media, etc. and are not conducting sampling, but wish to observe the project may enter upon receiving a safety briefing and given proper PPE. Command Post: Located on the western side oflandfill outside of the inner fence next to driveway Contaminated zones identified: YES Surveillance Equipment: The Organic Vapor Analyzer will be employed to monitor the level of methane inside the vent pipe on top oflanfiil. If the methane level is higher than 10,000ppm, the Combustible Gas Indicator will be employed to measure percentage of LEL. Oxygen meter will also be employed D. WORKPLAN INSTRUCTION-CONT. Decontamination Procedures: All PPE will be disposable and will be dispose of upon leaving the landfill at the fence entrance to the landfill proper. Modifications ------------------------ E. EMERGENCY CHEMICAL INFORMATION CENTERS Poison Control Center-State Coordinator Duke University Mdical Center Tele: 800-672-1697 P .O. Box 3024 Durham, NC 27710 Asheville Western NC Poison Control Central Memorial Mission Hosp. 509 Biltmore Ave., 28801 704-255-4490 Charlotte Mercy Hospital 2001 Vail Ave., 28207 704-379-5827 Greensboro Moses Cone Hosp. 1200 N. Elm St., 27420 910-379-4105 Wilmington New Hanover Mem. Hosp. 2131 S. 17th St., 28401 910-343-7046 Jacksonville Onslow Mem. Hosp. Western Blvd., 28540 910-577-2555 ..... EMERGENCY PRECAUTIONS Route of Exposure First Aid ~ • • . • • • • . • . . . . . • • . • . • • . irrigate immediately Skin . .. .. • .. .. • • .. .. . . . . . . soap and water wash loha!atjon • • • • • . • • • . . . • . • • • • fresh air and artificial respiration Ingestion • • . • . . • . • . . • • . . • • . get medical ·attention immediately Location of Nearest Phone: unknown Nearest Hospital (Address and Phone Number) Maria Parham Hospital Ruin Creek Road at l-85 Henderson NC 27536 can handle chemically contaminated patients Emergency Transportation Systems (Phone Numbers) Fire lli EMS ill Rescue Squad lli Emergency Route to Hospital Travel west on SR 1604 then turn left onto SR 1125. lust past Cokesbury turn right onto SR 1510 then left onto SR 1001, Stay on SR 1001 until just outside of Henderson then turn right onto SR 1508 which wjll lead you to 1-85 Jake 1-85 South to the Ruin Creek Road exjt the hospital is well marked EQUIPMENT CHECKLIST __ Air purifying respirator __ Cartridges for respirator __ Dust Mask _X_O2 Indicator _X_Eye Wash Unit _X_HNU _X_OVA _X_Combustable Gas Meter ___ Radiation Monitor _Detector Tubes and Pump X First Aid Kit -X_3 gal. Distilled H20 __ Rainsuit _ X _Gloves (PE/PVO'n itri le/cloth) X Boots/Boot Covers -X Coveralls (tyvek/saranex) _X_ Eye Protection _X_Hard Hat _X_ Decontamination Materials. PROJECT MANAGERS PROJECT ACTIVITY REPORT PROJECT MANAGER: ______ _ PROJECT: ___________ _ INVESTIGATION DATE: _____ _ Materials Used (Please insert a number in the blank) Air Purifying respirator cartridges --Detector tubes == Eye Wash Units First Aid Kit == Gloves (polyethylene) Gloves(PVQ Respirator Worn By Gloves (nitrile) _._._Gloves (cloth) Boot covers __ Coveralls (tyvek) Coveralls (saranex) __ Auger Brushes Approximate Time in Respirator Air Monitoring Data (Include Calibration Reading) HNU: ------------------------ OVA: _________________________ _ Combustable Gas Meter: -------------------- Radiation Meter: ----------------------- If the maximum personal protective equipment as outlined in the Hazard Evaluation Section was not used, please justify: Visitors Present Organization Represented -c\L/SR/Revised 5-94 June 12, 1996 MEMORANDUM To: Bill Meyer From: Bob Glaser, Grover Nicholson, Larry Rose, and Pete Doorn RE: Proposed Sampling for the PCB Landfill In the June 7, 1996 meeting , we were provided with a May 28 , 1996 memoranda and a June 4, 1996 letter from the PCB Landfill Working Group's (Working Group) Science Advisor, Patrick Barnes. These documents set out a specific sampling program for the landfill. After reviewing these documents, we are proposing an alternative sampling program. We believe this program addresses each of the concerns of Mr.Barnes. The major differences in the two programs are: 1) the sequence of activities; 2) the use of site specific ground water data in the selection of proposed sampling locations; and 3) the proximity of the additional monitoring wells to the landfill. We believe our proposal describes a sound scientific approach to address each of the potential contaminant pathways. Eventhough cost was not a factor in our proposal, we believe this program is more cost effective also . We recommend that our proposal be reviewed/edited by the appropriate staff and submitted to Mr. Barnes as an alternative to his proposal. We believe that our proposal or some "hybrid" proposal (combination of his and our proposal) may be agreeable to Mr. Barnes. Since Bob Glaser has contacted Mr. Barnes earlier and discussed Mr Barne's proposal in detail, Bob may be the appropriate individual to submit the alternate proposal. GOALS: NORTH CAROLINA DIVISION OF WASTE MANAGEMENT PROPOSED PCB LANDFILL SAMPLING PROGRAM The goal of sampling program proposed by the Division of Waste Management (DWM) staff is to address each of the potential contaminant migration pathways for the contaminants of concern at the PCB landfill. Each of these migration pathways were considered in Mr Barne' s proposal. The potential migration pathways are: 1) ground water and 2) overland runoff of PCB contaminated media during the filling of the landfill. SAMPLING PROGRAM: The DWM proposes the following activities, in two phases, to accomplish the goals of the sampling program. PHASE I: The initial phase of the sampling program would be to identify the potential water quality sample locations considering ground water as the transport mechanism. The first field activity would be to establish additional ground water monitoring stations (wells) in order to collect ground water surface elevations. These same wells would be suitable for the collection of ground water quality samples in the second phase of the program. The specific locations for the additional wells are identified on the attached figure We believe ground water surface elevation and hydraulic head data from these wells will provide sufficient data to construct a ground water flow net for the area surrounding the landfill. The flow net will illustrate ground water flow in both plan view and cross section. With the flow net and the approximate locations of the ground water seeps (ground water discharge points) on the 7 .5 minute USGS quadrangle sheet, we believe that the appropriate surface water quality and ground water quality sample locations could be selected. PHASE II: The second phase of the sampling program would be to identify and sample each of the appropriate locations upgradient and downgradient of the landfill. These sample locations would include both the water quality sample locations and the sediment sample locations. Specific sample locations would be selected after considering the data collected in PHASE I. The specific parameter list would include each of the constituents agreed upon by the Working Group and the DWM. Both ground and surface water quality sample locations would be selected after considering the ground water flow net and the ground water discharge locations. All of the wells hydraulically downgradient of the landfill would be sampled. Downgradient surface water sample locations would also be included. Surface water sample locations would include each of the ground water seeps hydraulically downgradient of the landfill as well as several locations from the perennial stream downstream of the seeps. As a quality control measure, both upgradient surface and ground water samples would be collected. Stream sediment sample locations would be identified after considering the surface water sample locations and a topographic map of the landfill and surrounding area. Overland flow is the potential transport mechanism for potential contamination at these locntions, These locntiom would most likely be comistent with those proposed by Mr. Barnes. C:\SPCIAL-P.ROJ\PCB\6-96SAM.PRG ~ A Environmental Consultants Barnes, Ferland and Associates, Inc. June 4, 1996 Mr. Bill .Meyer North Carolina Department of Environmental Health and Natural Resources 401 Oberlin Road, Ste. l 50 Raleigh, N.C. 27605 BFA #95-017 SVBJECT: Coordination of and Responsibilities for Sampling and Testing Activities Dear Bill . Relative to the above I understand the following : • The State v.-ill assemble a team of samplers who will collect environmental samples in a phased approach as outlined in our memo dated May 28 , 1996. • The field team leader will closely coordinate all activities with the Science Advisor. • The sampling activities will be in accordance with the existing Sampling Plan and our proposed supplement. • Approximately 25% of samples will be split with the Science Advisor and analyzed by a fully qualified but independent laboratory • Bf A will provide a location map containing all proposed sampling points. • The State will advise me as to whether or not it can make available all terrain drilling equipment and when. Other issues which have resulted from two recent attempts to field verify proposed off-site sampling locations are: • The potential need to coordinate with and/or obtain easements from adjacent property owners. • The need to perform clearing and grubbing activities such that the samplers can easily access each sample station. The Hollister Building • 3535 Lawton Road• Suite 111 • Orlando. Florida 32803 Office (407) 896-8608 • Fax (407) 896-1822 Mr Bill Meyer June 4, 1996 Page 2 At this time it is assumed that these activities will be performed by the State. Please notif)· me if you recommend otherwise. Attached is a draft map of the proposed sample locations. Several of these locations have already been verified and flagged . Substantial clearing will be required to access sites to the west of the landfill. Larry Rose of your department is very familiar with the procedure being used to identify surface water, sediment and groundwater sample locations. If the State is to arrange for and contract the necessary clearing activities. it is recommended that. if possible, he be involved in that process. P AB psi; ·r.--1W\1 I .,foe cc Working Group Members Joel Hirschhorn John Watson, BFA Sincerely, Bar~:::1/d and As:_:~!a /~//4~~· Patrick A. Barnes, P G. Science Advisor ,s.~ 07: 3'.2 4tt78%1822 --------- I £1'5 /30/1-8% 13: os 407E:'351 E:22 ..BFA Environmental Consulta1 Post-It~ Fax Note 7671 Barnes, Ferland and MEMORANDUM TO: FROM: Bill Meyer and W.orking Groupz. e13 rs /}/ r £, Pat Barnes (Science Advisor) . af DATE: May 28, 1996 Phor;e # (40l Fax # 40 SUBJECT: Implementation of Phase I Supplemental Environmental Sampling at the PCB Landfill PAGE 01 As we agreed, the analytes, QA/QC and Health and Safety procedures for the existing Field Sampling Plan are acceptable for fi.tture sampling activities. Severa! additional sampling locations: liowever, should be added for a more comprehensive evaluation. I would recommend a phased approach for the next group of samples. We are in the process of preparing a Phase I sample location map and a supplement to the existing plan. Proposed Phase I sampling would include the following : 1. Repeat first round sampling and analysis for all locations and corresponding matrices excluding soil samples collected on the landfill cap and mon.itor wel.ls . 2. Sutface soil samples in the northern settling basin. 3. A total of six (6) soils sediment samples, one from each of the major draws surrounding the site. 4. A total of five (5) sediment samples located in sedimentation prone areas along Richneck Creek and the unnamed tributary. 5 A total of six (6) surface water samples, one from each of the major draws as close to the landfill as possible (if water is present). Proposed Phase U sampling will involve the following : l. Hydropunch technology will be used to collect groundwater samples directly adjacent to the toe cf the landfill The hydropunch data will be used to identify if leaks may have occurred as well as the vertical distribution of water quality 2. Permanent monitor wells will be designed and located based on results of the hydropunch data. At a minimum, one monitor well cluster should be placed uphill from each of the draws. The Hollister Building• 3535 Lawton Road• Suite 111 • Orlando. Florida 32803 Office (407) 896-8608 • Fax (407) 896-1822 05/30/1996 13:05 l\tlEMORANDUM May 29, 1996 Page2 BARt--lE:3 FERLAHD A~SOC F'AGE 02 3. Groundwater samples wiH be collected and tested from each of the monitor wells. We are in the process of reviewing the previously proposed, expanded groundwater monitoring plan and will incorporate its recommendations into our Phase II supplement. It is recommended that the State move quickly with the Phase I sampl.ing activities. A Phase I supplement should be submitted to your office by June 7. 1996. cc: Joel Hirschhorn BF.A ======= .,.,. January 3, 1996 Mr. William Meyer Division of Solid Waste Management ENVIRONMENTAL TECHNOLOGY UNLTD. 9220 Industrial Blvd. Leland, N.C. 28451 910-371-2007 Fax: 910-371-2066 N.C. Department of Environment, Health, and Natural Resources 401 Oberlin Road Raleigh, NC 27605 Dear Mr. Meyer, Recently, in discussions with Headquarters of the USEPA, I learned that Aqua Terra Environmental Company of Raleigh in conjunction with Blue Bell Environmental Company of Pennsylvania had submitted an application for a National R&D Permit to study Base Catalyzed Decomposition for North Carolina more specifically the Warren County PCB Landfill. Environmental Technology (ET) is presently holds a National R&D Permit from USEP A to study soil washing and solvent extraction technologies for the remediation of PCB' s in soil. ET has built and demonstrated a pilot unit to the USEPA. We expect to obtain our second National Alternate Disposal Permit for PCB's in 1996. Presently, we are searching for a treatability study to participate in. ET is very interested in the Warren County project and would very much like to be considered in the initial treatability work. We can start immediately either on site or here in this facility. -Enclosed is a copy of our current SOQ as well as some information on our soil unit. Please call me with any questions. Sincerely, Lyle Hunnicutt Vice President Operations Enclosure SOQ METHEX BROCHURE I ' ' ■ I -- STATEl\rlEN'I' of QUALIFICA'l'IONS for ENVIR.C>NMENTAL TECIINOLf)(;Y UNLIMITED CORPORA TJON 9220 Industrial Boulrvnnl Leland, NC 28451. (910) 371-2007 ENVIRONMENTAL PATHWAY TO 1HF. FUTURE .. The ME11-IEXTM process developed hy Fn•,irnnrnental Techn<'lngy ( FT) is a lllobilc unit used to extract and remove PCB's, Chlorobenzrnes. <1nd Dioxins fro111 •:,,if The process is an economical alternative to disposal of affected soil at a T~CA-approvcrl inri,w,at<'r or TSCA-approvcd landfill. The METHEXT"' process vastly reduces th e amount of conta111i11atcrl waste generated. It also minimizes liabilities that are associated with disposal at );rndfills The METHEXTM process offers a viable altcrmtive to lnndfilling and hc1s many advantages over other process methods of soil remediation and dig-and-haul. Some oft he lwnefits arc as follows: • Reduced liability through decontarnin:ition rather than di ,posal • Waste reduction through distillation ;111cl carbon c1clsorptiPn . • Expedited remediation time as a result of the extreme effectiveness of the METHEX™ process and environmentally sound orgc1nic solvent. • Cost effectiveness. • USEP A approved • Completely mobile adding versatility c1nd case of handling. Greatly reduced mobilization and set-up times. State of North Carolina Department of Environment, Health and Natural Resources Division of Solid Waste Management James B. Hunt, Jr., Governor Jonathan B. Howes, Secretary William L. Meyer, Director Lyle Hunnicutt Vice President of Operations Environmental Technology 9220 Industrial Blvd. Leland, NC 28451 RE: Warren County PCB Landfill Dear Mr. Hunnicutt: January 9, 1996 NA DEHNR I appreciate the information that Environmental Technology (ET) presently holds a national R&D permit from USEP A to study soil washing and solvent extraction technologies for the remediation of PCB's in soil. ET's interest in the Warren County PCB landfill with respect to a treatability study is also appreciated. The Joint State/Warren County Working Group is considering detoxification of the PCB landfill and has recently hired a science advisor. One responsibility of the science advisor is to recommend alternative technologies for detoxification of the landfill. I will refer the information that you have submitted to the working group and science advisor for consideration. If you have any questions please contact me at (919) 733-4996, ext. 202. Sincerely, J~c!P?ut~ William L. Meyer WLM/cb cc Henry Lancaster w/ attachments from E.T. 'Pat-Williamson w/atfifchment! from E: T~vr· P.O. Box 27687. Raleigh. North Carolina 27611-7687 Telephone 919-733-4996 FAX 919-715-3605 An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post-consumer paper ~ .JS L ~~---'-~ \_\. VISITOR SIGN-IN SHEET PLEASE FILL OUT COMPLETELY ? v <-~ t~ ~~ -DATE BADGE VI;ITO~ # NAfylE I../"", 9-/11 .<( /11 ~ 61£',ArJ/ /Ir v1 M~tP~11/:v-2·17 4 v\..05,. 1-/7 ( fevt. Ot ·h~, 'le,,,.. <-I} · 2. 'cc: t -S""i-1-ti-v (,, <;/1:_ f ?c· ' ~17 I~ ·uUcd!ML I I J) DoY) t1 7 7~~~ "" &; l LI I e_ -H LA__ V\ \i\ \ ~ ~~ ~c_~ ~-~~r--PHONE NUMBER STAirU' YOU ARE VISITING TODAY · TllvIE IN kPv~~1 -:!] ~&;}-{£JC,;;), 0 I /(01.,.. r. W-tSfcf\, .:½le. I /Ob lbs 511-,,2'/-I 1:?f' C brl\ £-~~1'c.c¼VAn.1t ~c_. £co l-06'/C-\vl\..l.. A-OV•.S~ C11,)gstf-D7'7'1 I Olo6J GJv. ,;f_ &au..y 5✓c..~,/N'-. I '-I•::,~ ~7l:, tnv;,u,1,11e.,r~,( J:,.c... 610-'Ml -;rim Vt='L/ r:r C ·z--cJ O ?ID) LLD 1w Jb5 f/r "'IS'-/..,6_21~ P'i 9-9997 /J-qu..e._-~~-;J__:.__<!.., . !V/,4-37.\ -ioo 7 ·3 -HJJl__ TllvIE OUT 1/11 D~IS1£~2~ w ~~!~ MANAGE~~~r!~lvlslr1ms.fr111 } 17 J:CL14---fktSC!l l.4 H. TvRr~F ·1;.;~--J.<:;c-/ ~), n~~11')} r,[ /t!1i'),,1l/;,~1n-l Ray S. {Stan} Taylor, PE Principal P.O. Box 41087 Raleigh. NC 27629 ----~ ---919-876-5i15 800-849-5115 FAX 919-790-8273 ,,. ...... -; -···-· ·-· ..................... 1 . Solvated Electron Technology (SET) Chemical Treatment Tecl-1nology.for. · .. ·Destroying Toxic Organi~ Contaminants·· •: COl\MODORE . ADVANCED SCIENCES, INC. 2340 Menaul Boulevard NE, Suite 400 Albuquerque, NM 87107 505~872~3508 PCB LANDFILL STATUS BRIEF BACKGROUND In 1993, Governor Hunt was briefed by state officials on the status of the PCB landfill in Warren County. He was told that the contents of the landfill had not been sampled since construction, and that there was water in the landfill that needed to be tested and removed. The PCB landfill was constructed to be a dry facility. At the direction of the Governor, state officials met with Warren County officials in a public meeting to determine what to do about the water. The intent of that meeting was to get concurrence on extraction of the water. Several citizens demanded that detoxification be considered as a prerequisite to dewatering or done simultaneously with dewatering of the landfill. They also cited the commitment that Governor Hunt made in a 1982 letter to the citizens of Warren County to detoxify the landfill when feasible. As a result, DEHNR set up a 16-member working group composed of Warren County citizens, environmentalists, and state officials to make recommendations to the Governor about the future management of the PCB landfill. The working group met for the first time in January 1994. Upon the group's recommendation, a contract was entered into with Pauline Ewald, head of Environmental Compliance Organization, on May 1, 1994 for $82,950 (money came from DEHNR) to serve as the group's science advisor for one year. Her duties were to recommend site evaluation procedures, a methodology for water removal, a detoxification technology, and long-term controls for the PCB landfill. In July 1994, a sampling event was conducted at the landfill by Ms. Ewald's company and the state. No PCBs were found outside of the landfill. However, the laboratory that analyzed the state's samples detected some dioxin at the ppq (parts per quadrillion) level in three of the monitoring wells around the landfill. Opinions varied as to where the dioxin originated. Despite the fact that Ms. Ewald tried to discredit the state's findings, she used those findings to conclude in her report that "release of dioxin from the PCB landfill is the most likely source for demonstrated dioxin and furan contamination in on-site monitoring wells." The report prepared by Ms. Ewald was not acceptable to the state. It was peer-reviewed by several outside sources who were also critical of her report. The state recommended that the landfill be resampled. The working group opposed both resampling and removal of the water from the landfill. Ms. 1 ,, Ewald's report convinced several members of the working group that the landfill was leaking. Even though several members of the working group acknowledged that the presence of water in the landfill presented a potential risk, they did not want the water removed. They have repeatedly expressed concern that if the landfill were made safe by removing the threat of the water that the state would not proceed with any detoxification effort. Ms. Ewald recommended that a technology known as base catalyzed dechlorination (BCD) be used to detoxify the landfill. The state advised the working group that at least three methods should be considered and that the General Assembly would want information about various technologies available for detoxification, why certain technologies were approved/ rejected, and costs. The working group felt that the BCD process was a suitable technology and would be acceptable to the community because it could be done on site. The state and the working group went through the process of selecting vendors to conduct pilot projects at the landfill using BCD methods. Two vendors even went through the EPA process for approval. Both eventually received approval by EPA. Pilot-scale proposals by the vendors included a cost ranging from approximately $700,000 to $800,000 for on-site testing of technologies. Ms. Ewald's contract expired in May 1995. CURRENT STATUS (July 1, 1995-present) Membership The original working group was composed of 16 members. At the working group's request, the membership was raised to 24 in September 1994. Presently, there are 21 people on the working group, with Senator Frank Balance serving as an ex-officio member and Bill Meyer, director of the Division of Waste Management, serving as staff. Three positions are vacant (one public safety and two youth). Approximately 10-12 members show up for meetings on a regular basis, and they are the decision-makers. The others attend meetings sporadically or never attend. There are only two elected officials on the working group. County Commissioner Lucius Hawkins' attendance is sporadic. He was defeated in the spring primary. Ms. Dollie Burwell, the Register of Deeds for Warren County, is one of the co-chairs and a regular attendee. She also was defeated in the spring primary. The credentials of the working groups members, other than the three state representatives, are basically unknown. The working group very heavily relies on the state for staff, technical expertise, and support. Yet members 2 ,. have repeatedly said they do not trust the state. Expenditures In March 1994, Warren County was awarded $100,000 from the Solid Waste Grants Program to be used for capital improvements on the PCB Landfill. During the 1995 session of the General Assembly, the legislature appropriated $1 million from the Highway Fund for pilot projects to determine the most appropriate technology for cleanup of the landfill. The working group members decided they needed the services of another science advisor as well as support staff. On March 7, 1996, Mr. Joel Hirschhorn (Maryland) and Mr. Patrick Barnes (Florida) were hired as science advisors for the working group. On March 18, 1996, Ms. Doris Fleetwood was hired as a part-time secretary for the working group. A joint agreement was made between the DEHNR and the Warren County Board of Commissioners to provide office space, furniture, equipment, supplies, conference room, kitchen, restroom facilities and parking for the secretary and the two science advisors. The working group's office opened on March 25, 1996, in the CP&L Building in Warrenton, NC. The $1 million appropriated by the General Assembly is being used to pay the science advisors, the secretary, and office rent. The science advisors are each paid at the rate of $100 per hour of work. The cost for the half-time secre\t,IX.~ office space is $25,000 for one year. As of September 1996, approximEtfely ~~has been expended from that fund, of which $~ has gone to the science advisors. ~ 31 1 Y04 In the fall of 1995, the Division of Waste Management began working with CP&L to provide electrical service to the landfill for pilot projects or any full-scale detoxification effort. CP&L was paid $64,384 for this service from the capital improvements account. Poles and lines for electrical service are in place, and transformers will be added when the specific electrical demands are known. This provides a permanent source of power for detoxification efforts or dewatering the landfill, as well as other activities that may require electricity. Master Plan After talking with the working group and reviewing files and documents related to working group activities and the PCB Landfill, the science advisors developed a master plan. This master plan stated why the working group should change its current strategy and offered an alternative strategy. The 3 \ working group approved the master plan at their April 25, 1996 meeting. The science advisors offered several reasons for changing the current strategy of the working groups. Briefly, the science advisors stated that it would be just as effective, and less expensive, to invite a few companies to conduct off-site, bench-scale tests on the landfill's contents rather than pilot- scale projects. This would also mean that less material would have to be removed from the landfill for the studies. The science advisors stated that other detoxification technologies must be thoroughly examined. They also said that a much stronger case for funding from the General Assembly could be made by spending money on a more thorough site investigation and remedy design. The science advisors recommended several key steps in the alternative strategy. They felt that a more detailed evaluation of detoxification technologies and vendors should be conducted by the science advisors. Mr. Hirschhorn is currently working on this item. They also suggested that a site investigation be conducted to determine the current status of the PCB Landfill and the surrounding area. Mr. Barnes and state officials are currently working on this item, and a plan will soon be presented to the working group for approval. This investigation, if approved, will include the placement of additional monitoring wells and a resampling of the landfill and surrounding area. The site investigation will cost roughly $50,000 (excluding state staff costs}, and it will be funded from the $1 million approved by the General Assembly. The alternative strategy also calls for several other items: -Designing a soil and waste removal plan and selecting a vendor to do this; -Issuing a feasibility study report; Inviting vendors to conduct bench-scale treatability tests; -Evaluating test results and selecting/ ranking vendors (to be done by science advisors; -Finalizing the site investigation report; -Meeting with working group/highest ranked vendors -Selecting best technology vendor (pre-qualified for actual cleanup; -Hiring best technology vendor as design contractor (under current funding); -Selecting a remedy and issuing a remedial design report. The remedial design report would be used as the basis for the working group 4 and DEHNR to formally propose the landfill detoxification project to the General Assembly to obtain funding. 5 ',, PCB Landfill Status Brief Background In 1993, Governor Hunt was briefed by state officials on the status of the PCB landfill in Warren County. He was told that the contents of the landfill had not been sampled since construction and that there was water in the landfill that needed to be checked to find the source and remove it. At the direction of the Governor, state officials met with Warren County officials in a public meeting to determine what to do about the water. The intent of that meeting was to get concurrence on extraction of the water. Several citizens expressed an interest in detoxifying the landfill. DEHNR set up a 16-member working group composed of Warren County citizens, environmentalists, and state officials to make recommendations to the Governor about the future management of the PCB landfill. The group's membership later increased to 22 members. The working group met for the first time in March 1994. Upon the group's recommendation, Pauline Ewald, head of Environmental Compliance Organization, was hired on May 1, 1994 for $82,950 (money came from DEHNR) to serve as the group's science advisor for one year. Her duties were to recommendation evaluation procedures, methodology for water removal, detoxification technology, and long-term controls for the PCB landfill. In July 1994, a sampling event was conducted at the landfill by Ms. Ewald's company and the state. No PCBs were found outside of the landfill. However, the laboratory that analyzed the state's samples detected some dioxins at the ppq (parts per quadrillion) level in three of the monitoring wells around the landfill. Opinions varied as to where the dioxins originated. The report prepared by Ms. Ewald was not acceptable to the state. It was peer-reviewed by several outside sources who were also critical of her report. The state recommended that the landfill be resampled. The working group opposed both a resampling as well as removal of the water from the landfill. Ms. Ewald recommended that base catalyzed dechlorination (BCD) be used as a detoxification method for the landfill. The state told the working group that a variety of methods should be considered and that the General Assembly would want information about the various technologies available for detoxification, why certain technologies were approved/rejected, and costs. The working group felt that the BCD process was a suitable technology and would be acceptable to the community because it could be done on site. The state and the working group went through the process of selecting vendors to conduct pilot projects at the landfill using BCD methods. Ms. Ewald's contract ran out in May 1995. Current Status (July 1, 1995-present) During the 1995 session of the General Assembly, Senator Frank Balance got the legislature to appropriate $1 million from the Highway Fund for pilot projects to determine the most appropriate technology for cleanup of the landfill. The working group members felt they needed the services of another science advisor as well as support staff. On March 7, 1996, Mr. Joel Hirschhorn (Maryland) and Mr. Patrick Barnes (Florida) were hired as science advisors for the working group. On March 18, 1996, Ms. Doris Fleetwood was hired as a part-time secretary for the working group. A joint agreement was made between the DEHNR and the Warren County Board of Commissioners to provide office space, furniture, equipment, supplies, conference room, kitchen, restroom facilities and parking for the secretary and the two science advisors. The working group's office was opened on March 25, 1996, located in the CP&L building in Warrenton, NC. The $1 million appropriated by the General Assembly is being used to pay the science advisors, the secretary, and for office space ( see attached PCB Landfill Fund). The science advisors developed a Master Plan for the working group denoting their process of operations (see attached copy of Project Master Planning). Briefly, the science advisors stated that it would be just as effective, and less expensive, to invite a few companies to conduct off-site, bench-scale tests on the landfill's contents. This would also mean that less material would have to be removed from the landfill for the studies. The science advisors stated that other detoxification technologies must be thoroughly examined. They also said that a much stronger case for funding from the General Assembly could be made by spending money on a more thorough site investigation and remedy design. Mr. Hirschhorn peer-reviewed the earlier report prepared by Ms. Ewald and reported his findings in a progress report, dated July 8, 1996, to the working group (see attached progress report). At this time, the DEHNR's Division of Waste Management is working with Mr. Barnes to develop a sampling plan for the PCB Landfill. It is expected that a sampling plan will be submitted to the working group for approval in August and the actual sampling event can take place in September. Mr. Hirschhorn is currently investigating and reviewing technologies that might be used to detoxify the landfill contents. 8/9/96 , PCB LANDFILL BRIEF HISTORY In July 1978, the state received the first report of a chemical spill. The spill material was identified as PCBs on NC 58 in Warren County. PCBs are polychlorinated biphenyls, a chemical that was widely used as a liquid insulation material in electrical transformers. The chemicals were banned in 1978. Eventually, 241 miles of PCB-contaminated roadside were identified in 14 counties. An activated charcoal solution and liquid asphalt were applied along the 241 miles of North Carolina highways where the shoulders had been contaminated with PCB. This action was taken to temporarily deactivate the PCB to prevent migration and reduce any hazard to the public. In December 1978, the state obtained an option on 142 acres of land in Warren County to use as a disposal site for the PCB-contaminated soil. North Carolina petitioned EPA to modify its regulations to permit alternative methods of disposal of the contaminated soil and debris, but EPA denied the petition. North Carolina and EPA officials signed a cooperative agreement in May 1982 that provided $2.5 million in federal Superfund cleanup money to construct a PCB landfill in Warren County and clean up the contaminated roadsides. That same month, the state deeded 120 acres surrounding the landfill site to Warren County as a buffer zone. Construction of the landfill began in June 1982. By the end of October, 7,223 truckloads of PCB-contaminated soil had been taken to the landfill. Capping of the landfill began in November, but bad weather prevented the final soil layer and seeding of the cap to be completed. Heavy rains in December caused soil erosion on the cap and bubbles developed in the exposed liner from gas in the landfill (caused by decomposition of vegetation mixed in soil). The problems were corrected and landfill completion was scheduled for spring. Landfill construction resumed in May 1983 and was completed in July. UPDATE Staff from the N.C. Division of Solid Waste Management inspect the PCB landfill monthly to be sure that it remains in good repair (see attached monthly report sheet for details of what is inspected). The four monitoring wells at the site and the four surface water monitoring sites (upstream and downstream on Richneck Creek and an unnamed tributary) are sampled twice yearly. No PCBs have ever been found in the samples. In May 1990, the grass and soil on the landfill cap were sampled. No PCBs were detected in the cap samples. Only one sediment sample from the leachate pond showed a detectable concentration of PCBs. PCBs were detected at a level of 0.27 ppm in this sample, which is below the 1.00 ppm cleanup level for PCBs in soil. State officials think this residue occurred when the pumps in the leachate collection system were primed after the landfill was closed. CURRENT STATUS In 1993, soon after his return to office, Governor Hunt was briefed by state officials on the status of the landfill. He was told that the contents of the landfill had not been sampled since it was constructed and that there was water in the landfill that needed to be checked to find the source and remove it. In March 1993, at the direction of the governor, state officials met with Warren County officials in a public meeting to determine what to do about the water. The intent of that meeting was to get concurrence on extraction of the water, but several citizens expressed an interest in detoxifying the landfill. Local legislators also said they wanted to ensure the safety of the landfill. As a result, the NC Department of Environment, Health, and Natural Resources set up a 16-member working group composed of Warren County citizens and state officials to make recommendations to the governor about the future management of the PCB landfill. The Joint Warren County and State PCB Working Group, which met for the first time in March 1994, hired Pauline Ewald as a science advisor to work with the group. The group later approved a plan to sample the PCB landfill. In late July 1994, surface soil, air, groundwater, surface water, sediment, and landfill samples were taken by both the state and Ms. Ewald's company, ECO. No PCBs were found outside of the landfill. However, the laboratory that analyzed the state's samples detected some dioxins at the ppq (parts per quadrillion) level in three of the monitoring wells. Opinions varied as to where the dioxins originated. In September 1994, the working group's membership was increased to 22. At the request of the working group and with its strong backing, Senator Frank Balance introduced legislation during the 1995 session of the General Assembly to appropriate $10 million for cleanup of the PCB landfill. Though this bill was not enacted, Senator Balance did get the General Assembly to appropriate $1 million from the Highway Fund for pilot projects to determine the most appropriate technology for cleanup of the landfill. The science advisor to the working group recommended base catalyzed dechlorination (BCD) as a detoxification method. The working group studied the BCD process and several other possible technologies. The members felt that the BCD process was a suitable technology and would be acceptable to the community because it could be done on site. The working group is currently working with the state to select vendors and get the pilot projects started. The working group is also seeking the services of a science advisor since the contract with Ms. Ewald expired in June 1995. PCB LANDFILL STATUS BRIEF BACKGROUND In 1993, Governor Hunt was briefed by state officials on the status of the PCB landfill in Warren County. He was told that the contents of the landfill had not been sampled since construction and that there was water in the landfill that needed to be checked to find the source and remove it. At the direction of the Governor, state officials met with Warren County officials in a public meeting to determine what to do about the water. The intent of that meeting was to get concurrence on extraction of the water. Several citizens demanded that detoxification be considered as a prerequisite or simultaneously with dewatering the landfill. They also cited the commitment that Governor Hunt made in a 1982 letter to the citizens of Warren County to detoxify the landfill when feasible. As a result, DEHNR set up a 16-member working group composed of Warren County citizens, environmentalists, and state officials to make recommendations to the Governor about the future management of the PCB landfill. The working group met for the first time in January 1994. Upon the group's recommendation, Pauline Ewald, head of Environmental Compliance Organization, was hired on May 1, 1994 for $82,950 (money came from DEHNR) to serve as the group's science advisor for one year. Her duties were to recommend evaluation procedures, methodology for water removal, detoxification technology, and long-term controls for the PCB landfill. In July 1994, a sampling event was conducted at the landfill by Ms. Ewald's company and the state. No PCBs were found outside of the landfill. However, the laboratory that analyzed the state's samples detected some dioxin at the ppq (parts per quadrillion) level in three of the monitoring wells around the landfill. Opinions varied as to where the dioxin originated. The report prepared by Ms. Ewald was not acceptable to the state. It was peer-reviewed by several outside sources who were also critical of her report. The state recommended that the landfill be resampled. The working group opposed both resampling and removal of the water from the landfill. Ms. Ewald's report convinced several members of the working group that the landfill was leaking. Even though several members of the working group acknowledged that the presence of water in the landfill presented a potential risk, they did not want the water removed. They have repeatedly expressed concern that if the landfill were made safe by removing the threat of the water that the state would not proceed with an expensive detoxification effort. Ms. Ewald recommended that base catalyzed dechlorination (BCD) be used as a detoxification method for the landfill. The state told the working group that a variety of methods should be considered and that the General Assembly would want information about the various technologies available for detoxification, why certain technologies were approved/rejected, and costs. The working group felt that the BCD process was a suitable technology and would be acceptable to the community because it could be done on site. The state and the working group went through the process of selecting vendors to conduct pilot projects at the landfill using BCD methods. Two vendors even went through the EPA process for approval. Both eventually received approval by EPA. Pilot-scale proposals by the vendors included a cost ranging from approximately $700,000 to $800,000 for on-site testing of technologies. Ms. Ewald's contract ran out in May 1995. CURRENT STATUS (July 1, 1995-present) Membership The original working group was composed of 16 members. At the working group's request, the membership was raised to 24 in September 1994. Presently, there are 21 people on the working group, with Senator Frank Balance serving as an ex-officio member and Bill Meyer, director of the Division of Waste Management, serving as staff. Three positions are vacant (public safety and two youth). Approximately 10-12 members show up for meetings on a regular basis, and they are the decision-makers. The others attend meetings sporadically or never attend. There are only two elected officials on the working group. County Commissioner Lucius Hawkins never attends the meetings. He was defeated in the spring primary. Ms. Dollie Burwell, the Register of Deeds for Warren County, is one of the co-chairs and a regular attendee. She also was defeated in the spring primary. The credentials of the working groups members, other than the three state representatives, are basically unknown. The working group very heavily relies on the state for staff, technical expertise, and support, yet members have repeatedly said they do not trust the state. Expenditures During the 1995 session of the General Assembly, Senator Frank Balance got the legislature to appropriate $1 million from the Highway Fund for pilot projects to determine the most appropriate technology for cleanup of the landfill. The working group members felt they needed the services of another science advisor as well as support staff. On March 7, 1996, Mr. Joel Hirschhorn (Maryland) and Mr. Patrick Barnes (Florida) were hired as science advisors for the working group. On March 18, 1996, Ms. Doris Fleetwood was hired as a part-time secretary for the working group. A joint agreement was made between the DEHNR and the Warren County Board of Commissioners to provide office space, furniture, equipment, supplies, conference room, kitchen, restroom facilities and parking for the secretary and the two science advisors. The working group's office was opened on March 25, 1996, located in the CP&L building in Warrenton, NC. The $1 million appropriated by the General Assembly is being used to pay the science advisors, the secretary, and for office space. The science advisors are each paid at the rate of $100 per hour of work. The cost for the half-time secretary and office space is $25,000 for one year. As of September 1996, approximately XXXXXXXXX has been expended from that fund, of which $XXXXXXXXXX has gone to the science advisors. In March 1994, Warren County was awarded $100,000 from the Solid Waste Grants Program to be used for capital improvements on the PCB Landfill. In the fall of 1995, the Division of Waste Management began working with CP&L to provide electrical service to the landfill for pilot projects or any full-scale detoxification effort. CP&L was paid $64,384 for this service from the capital improvements account. Poles and lines for electrical service are in place, and transformers will be added when the specific electrical demands are known. This provides a permanent source of power for detoxification efforts or dewatering the landfill, as well as other activities that may require electricity. Master Plan After talking with the working group and reviewing files and documents related to working group activities and the PCB Landfill, the science advisors developed a master plan. This master plan stated why the working group should change its current strategy and offered an alternative strategy. The working group approved the master plan. The science advisors offered several reasons for changing the current strategy of the working groups. Briefly, the science advisors stated that it would be just as effective, and less expensive, to invite a few companies to conduct off-site, bench-scale tests on the landfill's contents rather than pilot- scale projects. This would also mean that less material would have to be removed from the landfill for the studies. The science advisors stated that other detoxification technologies must be thoroughly examined. They also said that a much stronger case for funding from the General Assembly could be made by spending money on a more thorough site investigation and remedy design. The science advisors recommended several key steps in the alternative strategy. They felt that a more detailed evaluation of detoxification technologies and vendors should be conducted by the science advisors. Mr. Hirschhorn is currently working on this item. They also suggested that a site investigation be conducted to determine the current status of the PCB Landfill and the surrounding area. Mr. Barnes and state officials are currently working on this item, and a plan will soon be presented to the working group for approval. This investigation, if approved, will include the placement of additional monitoring wells and a resampling of the landfill and surrounding area. The site investigation will cost roughly $50,000 (excluding state staff costs), and it will be funded from the $1 million approved by the General Assembly. The alternative strategy also calls for several other items: -Designing a soil and waste removal plan and selecting a vendor to do this; -Issuing a feasibility study report; -Inviting vendors to conduct bench-scale treatability tests; -Evaluating test results and selecting/ ranking vendors (to be done by science advisors; -Finalizing the site investigation report; -Meeting with working group/highest ranked vendors -Selecting best technology vendor (pre-qualified for actual cleanup; -Hiring best technology vendor as design contractor (under current funding); -Selecting a remedy and issuing a remedial design report. The remedial design report would be used as the basis for the working group and DEHNR to formally propose the landfill detoxification project to the General Assembly to obtain funding. 4 FACT SHEET: Evaluation of BCD Process at the FCX-Statesville Superfund site. HISTORY • FCX-Statesville was an agricultural distribution center for pesticides and fertilizers. There may be approximately 5,000-10,000 pounds of pesticides buried on site. The site was proposed for inclusion on the NPL in November 1990 and is a fund-lead site. Soil sampling at the site revealed about 7,000 cubic yards were contaminated with pesticides and PCP. • ROD (OU-2) signed on 22 November 1994. • Site has not been remediated and the bidding process is scheduled to begin in 1998. Remediation is scheduled to begin in 1999. REMEDY SELECTION PROCESS • Soil cleanup goal is 1 ppm for pesticides and 3 .2 ppm for PCP. • Soil cleanup remedies evaluated included !)capping, 2)on site BCD, 3)on site thermal desorption, and 4)off site excavation. • Comparing criteria ratings and costs of these four alternatives, on site BCD treatment met all of the criteria and was chosen as the remedial method. BCD TREATMENT PROCESS EVALUATION • EPA's experts from the Cincinnati lab, John Gilbert and Terry Lyons (513-569-7537), question BCD's effectiveness. They feel the BCD process does not work. • Ken Mallary, RPM for the site, is reevaluating the effectiveness of the BCD treatment process. In May 1998 he was unable to find any success stories for this process and in a public meeting (21 May 1998) indicated that BCD would not be used at the site. • Weston, EP A's ARCS contractor, is continuing the evaluation of the BCD process for EPA. Ralph McKeen (770-263-5438) of Weston had not found any positive information about the BCD process until ETG Environmental submitted data. Weston is currently evaluating ETG's claims and is scheduling a conference call with EPA and the State in early September to discuss BCD's effectiveness. Weston faxed the State a copy of ETG's BCD literature. Evidently, Southern Maryland Wood Treatment site is a pentachlorphenol site similar to Koppers but there is no data, as remedy has yet to be implemented. A (D&Jit __ j /VrJ /l ~ __,< • · /J. I) I ~ ,-~~J#JJ,F/ ~ Wt2ul/4 WARRENTON -The Joint Warren County/State PCB Landfill Working Group will hold a rally in front of the Legislative Building on Wednesday, July 15, at 11 :30 AM to show support for detoxification of the PCB Landfill. Working Group members will be joined by other Warren County residents and interested citizens seeking funds from the General Assembly for detoxification of the landfill. For the past four years, the Working Group, which is composed of Warren County citizens, representatives from environmental groups, and state officials, has worked together to determine the current status of the landfill and the availability of technologies to detoxify the PCB contaminated soils using $1 million appropriated by the General Assembly in 1995 for this purpose. Under the guidance of two independent science advisors, the Working Group selected base catalyzed decomposition (BCD) as the detoxification method for the landfill because it is a chemical/low thermal process that can be used on site, it is effective with PCBs, and it presents low risk to public health and the environment. The detoxification effort is anticipated to cost about $24 million based on a preliminary draft design of the full-scale BCD operation. Governor Jim Hunt has requested $15 million in his proposed budget, with the rest coming from other sources. Senator Frank Ballance of Warren County has introduced legislation requesting the full $24 million for detoxification of the landfill. PCBs are polychlorinated biphenyls, a chemical once widely used as a liquid insulation material in electrical transformers. The chemical was banned in the mid 1970s. In July 1978, PCBs were illegally dumped along more than 200 miles of roads in 14 counties in North Carolina. The roadsides were scraped and about 7,200 truckloads of PCB- contaminated soils were taken to a landfill in Warren County designed specifically to hold the soil. Until more recent years, there was little feasible technology to detoxify PCB-contaminated soils. ##### I : i I I I l -1 i I \ I i t i I I -1! j I ' a.1 ,! i I l I I I l I i -- ·~ I I\ - I ~ I i~ l \ ·~ ·~ I I i I I l I I I 4 ---~1------'----J w.t.i -~-·\ -~ I ~ '- ~~ dtntv -~ {ffl / ~~ -v· ~ ~ -~ ~iw. "lll3 ~ -~::::~ ¥ ~/1_ If ~ ~ ,tM) ~ 19?<2 "Y-~ ~ _____ r,,,, '11 F '3 fi_~Atd~o/ ~~o:x-1-f~ ~ o/fk