United States Q^-[Ce of the |nspector General Environmental Protection Q,,.^ Qf Audjt (A 1Qg) Washington, DC 20460 April 1989 5EPA Report of Audit E1 S4*7-11 -0037-9100236 REVIEW OF THE FISCAL YEAR 1987 SUPERFUND REPORT TO CONGRESS ------- X It TABLE OF CONTENTS PAGE SCOPE AND OBJECTIVES 1 SUMMARY OF RESULTS 2 DETAILS OF REVIEW 3 Annual Report Chapter 2.0 - Responding to Releases of Hazardous Substances 3 Annual Report Chapter 7.0 - Development and Evalua- tion of Permanent Treatment Technologies 10 Annual Report Chapter 13.0 - Executive Branch Estimate of Resources Needed To Complete CERCLA Implementation 11 Annual Report Appendix C - Detailed ROD Descrip- tions 11 Annual Report Preparation Process 12 EXHIBITS EXHIBIT 1 - FY87 Activities Annual Report vs. Regional Records 14 EXHIBIT 2 - Review of Regional Records for FY87 16 EXHIBIT 3 - Feasibility Study Write-up Example 17 ex- HEADQUARTERS LIBRARY ENVIRONMENTAL PROTECTION AGENCY WASHINGTON, D.C. 20460 ------- I UNITED STATES ENVIRONMENTAL PROTECTION AGENCY / WASHINGTON, D.C. 20460 APR 61989 THE INSPECTOR GENERAL MEMORANDUM SUBJECT: FROM: TO: Audit Report No. E1S4*7-11-0037-9.10023 6 Review of the Fiscal Year 1987 fund Report to Congress ector General (A-109) .liam K. Reilly Administrator (A-100) SCOPE AND OBJECTIVES This report presents the results of our review of the Environ- mental Protection Agency's (EPA) Annual Report to Congress on Progress Toward Implementing Superfund; Fiscal Year 1987 (Annual Report). The objectives of our review were to determine whether the Annual Report is reasonable and accurate, as required by Section 301(h)(2) of the Comprehensive Enviromental Response, Compensation, and Liability Act (CERCLA). We conducted our review between January 15, 1988 and January 23, 1989, at EPA Headquarters and in EPA Regions 2, 5, 8 and 9. We completed most of our work by August 1988, when EPA sent the report to the Office of Management and Budget (OMB) for review. However, we also reviewed the final changes made to the report in January 1989, after OMB's review had been completed. Our work focused on Fiscal Year 1987 (FY87) activities. Numerous auditors familiar with the Superfund program reviewed the entire Annual Report to determine if there were any sections which did not appear to be reasonable and accurate. We performed detailed audit work in EPA Headquarters and Regions 2, 5, 8 and 9 to verify the accuracy of key information presented in Chapters 2.0, "Responding To Releases of Hazardous Substances", and 7.0, "Development and Evaluation of Permanent Treatment Technologies". These chapters of the Annual Report addressed five of the seven areas specifically required by Section 301(h)(l) of CERCLA. ------- We did not perform detailed audit work on Chapter 13.0, "Executive Branch Estimate of Resources Needed To Complete CERCLA Implementation" another area which CERCLA required, since the Agency provided only current budget figures in response to this requirement. Finally, we reviewed Appendix C, "Detailed ROD Descriptions", to determine if the summaries presented were reasonable. Throughout the course of our review, we brought the concerns which we identified to the Agency's attention. The Agency corrected most of these concerns. Except as noted below, our work was performed in accordance with the Standards for Audit of Government Organizations. Programs. Activities and Functions (1981 revision) issued by the Comptroller General of the United States. We did not perform a full scope audit to determine if the Superfund program is achieving the results required by CERCLA, nor did we perform extensive tests to determine if internal controls are adequate. We performed audit work we believed necessary to determine if key information included in the Annual Report is reasonable and accurate. Furthermore, for the items not tested, based on our review, nothing came to our attention which warranted more detailed audit work than that described in the DETAILS OF REVIEW section. SUMMARY OF RESULTS We found that some of the areas presented in the Annual Report, such as the information presented in Chapter 7.0 on the Superfund Innovative Technology Evaluation (SITE) Program, were generally reasonable and accurate. However, other important areas of the report included information which was not reasonable and accurate, and some information was not as complete as it could have been. In addition, the process the Agency used to prepare the Annual Report was not completely effective. Certain information presented in Chapter 2.0 of the Annual Report was not reasonable or accurate. First, program accomplishments figures were frequently inaccurate because the Agency used Head- quarters information systems which were not reliable to prepare its report. Many of their figures did not agree with the corresponding information secured from regional systems, and significant portions of the regional claims were not supported by valid source documents. In addition, Appendix D of the Annual Report, which shows the status of Remedial Investigations/ Feasibility Studies (RI/FS) and Remedial Actions (RA) on September 30, 1987, identifies delays which occurred since January 1, 1987, but does not identify any delays which may have occurred prior to that date. ------- The Agency's official definitions of two terms used in the Annual Report, the "start" of key program activities and "oper- able unit", may lead the reader to believe that more on-site work was done, at a greater number of facilities, than actually occurred. Specifically, the Agency defines "start" as a financial transaction, i.e., when funds are obligated to begin work. No actual on-site cleanup work needs to be performed to qualify as a "start", and many months can elapse between the obligation of funds and the commencement of on-site work. In addition, EPA frequently divides Superfund "sites" into "oper- able units" to more easily manage the cleanup process. One site can have ten or more operable units, creating difficulty in correlating the number of cleanup actions taken during FY87 with overall cleanup progress at Superfund sites. In two areas of the Annual Report, we believe the information presented was not as complete as it could have been. First, CERCLA requires the Agency to provide an estimate of the resources needed to complete implementation of the statute. In response, however, EPA provided only the Agency's FY87 through FY89 budget figures. Second, we do not believe that the level of detail provided in the feasibility studies descriptions is sufficient, so that the reader can fully understand and appreciate EPA's decision-making process. Finally, the process used to prepare the Annual Report was not fully effective. For example, the report coordinator's resources were limited, and key end of fiscal year data was still uncertain and, in some cases, unavailable for our review until April 1988. As a result, the Annual Report was not completed until January 1989, even though it was due to Congress on January 1, 1988. The details of our scope, methodology, and results of review for the concerns summarized above are presented in the DETAILS OF REVIEW section of our report. DETAILS OF REVIEW Annual Report Chapter 2.0 - Responding To Releases of Hazardous Substances As previously stated, some of the information in the Annual Report wu not finalized until January 1989. In order that our review would not delay the report any further, we began our field work by using a January 1988 draft, and used updated drafts as they became available. We identified the types of information included in the report, and specifically focused our field work on those items CERCLA required. We then selected four regions in which to perform our detailed audit work: Regions 2 and 5 because of their heavy volume of Superfund activity; and Regions 8 and 9 because of their significantly lower volume. Recognizing regional differences, we hoped in this manner to obtain a balanced, nationwide perspective in our review. 3 ------- We initially planned to select a sample of cases for review from the Headquarters information systems being used to prepare the Annual Report. In early December 1987, we began requesting details on which systems were being used. As of January 15, 1988, when we began our review, the report coordinator could not tell us all of the systems that would be used to provide input. Therefore, because we did not nave a universe of cases from Headquarters records from which to select a sample, we obtained FY87 information directly from the EPA Regions. regional officials provided this information from a variety of computerized and handwritten systems, and stated that it was the most accurate available. We first verified the accuracy of the regional numbers by inter- viewing regional staffs and reviewing source documentation. In some cases, we reviewed 100 percent of the actions; however, if the number was prohibitively large, we randomly selected a sample for review. We also selectively reviewed a small number of end of year actions to determine whether there existed instances in which Superfund accomplishments were merely "paper transactions" and no on-site work was actually performed. We did not perform a statistical sample; therefore, the results of our review should not be projected throughout EPA. Although the Annual Report shows totals by region for Removal Starts and Removal Completions, it shows only nationwide totals for the other major Superfund activities we reviewed. The report coordinator provided us with regional information on these other activities late in our review. Therefore, at the conclusion of our field work, we compared the totals provided by the regions to those provided by the coordinator. We could not make this comparison earlier because, in most cases, the report coordinator was unable to provide the regional details until April 6, 1988. Although we cannot state conclusively what the correct figures are, it is evident from our work that some of the information presented in this report chapter is not completely reliable. In virtually every case, the total accomplishments figures included in the Annual Report did not agree with regional records (see exhibit 1 at the end of this report). And, as exhibit 2 shows, 30 percent of removal activities and 13 percent of remedial activities claimed by the regions were not supported by valid documentation in the regions' files. Specifically, in many cases the regional officials could not provide any source document clearly showing that the accomplishment claimed actually occurred in FY87 ("source document not located"). In a number of other cases, the documents provided by regional officials showed that, according to Agency definitions, the accomplishment should have been claimed in another fiscal year ("invalid FY87 actions"). ------- RemovalStartsAnd Completions The Annual Report showed a total of 97 Removal Starts for Regions 2, 5, 8 and 9, while these regions reported 107 Removal Starts to the auditors. The total of 75 Removal Completions in the Annual Report was less than the total reported by the regions. We sampled 32 starts and 18 completions and found that, according to Agency defini- tions, 28 starts and seven completions (70 percent) were supported as valid FY87 actions. (Figures 1 and 2 below) FIGURE 1 REMOVAL STARTS Real on 2 5 8 9 Starts Annual Report 36 35 11 15 Per; Rea ion 40 40 11 16 Sample Size 4 7 6 15 Valid FY87 Actions 4 7 6 11 Source Documents Not Located 4 Invalid FY87 Actions Total 97 107 32 28 FIGURE 2 REMOVAL COMPLETIONS Reaion 2 5 8 9 Completions Annual Report 29 30 4 12 Per; Reaion 33 37 4 12 Sample Size 4 oly 2 12 Valid FY87 Actions 4 2 1 Source Documents Invalid Not FY87 Located Actions 10 1 Total 75 86 18 10 Review of a sample was not performed due to time constraints. We were forced to curtail our review to keep pace with the Agency's early schedule for Annual Report issuance. ------- Preliminary Assessments and Site Inspections The Annual Report included 1,925 Preliminary Assessments (PA) as completed in FY87. The four regions which we reviewed reported that 1,958 PAs were completed. In addition, the Annual Report indicated that 514 Site Inspections (SI) were completed in FY87, while these regions reported 518. Of the 36 PA completions and 40 SI completions we examined, 26 PA and 33 SI completions (78 percent) were valid FY87 actions. Figures 3 and 4 below provide the detailed results of our review. FIGURE 3 PRELIMINARY ASSESSMENT COMPLETIONS Reaion 2 5 8 9 Completions Annual Report 505 802 132 486 Per; Reaion 524 814 134 486 Sample Size 12 12 2 10 Valid FY87 Actions 11 7 1 7 Source Documents Not Located 1 Invalid FY87 Actions 1 4 1 3 Total 1,925 1,958 36 26 FIGURE 4 SITE INSPECTION COMPLETIONS Completions Per; Reaion 2 5 8 9 Annual Report 152 224 34 104 Reaion 152 228 34 104 Sample Size 10 22 1 7 Valid FY87 Actions 10 16 7 Source Documents Invalid Not FY87 Located Actions 6 1 Total 514 518 40 33 ------- Remedial Investigations/Feasibility Studies The Annual Report included 100 RI/FSs in FY87 for the four regions we reviewed. However, these regions reported only 96 RI/FS starts to the auditors. We sampled 62 RI/FSs and found 55 (89 percent) were valid FY87 actions. (Figure 5 below) FIGURE 5 REMEDIAL INVESTIGATIONS/FEASIBILITY STUDIES Reaion 2 5 8 9 Starts Annual Report 30 45 10 15 Per: Reoion 30 42 10 14 Sample Size 5 42 10 5 Valid FY87 Actions 5 41 4 5 Source Documents Invalid Not FY87 Located Actions 1 6 Total 100 I ========s=====: 96 62 55 Records of Decision/Selection of Remedy We found that the number of Records of Decision (ROD) which the Annual Report indicated were signed in FY87 was almost identical to the figure presented by the regions. The Agency reported 40 completed RODs for the regions which we reviewed, while these regions reported 39. We reviewed the 39 RODs and found that only one was not a valid FY87 action. Remedial Designs and Remedial Actions Our scope of review for these two actions included Regions 2, 5, and 8 (due to time constraints, we could not complete field work in Region 9). The Annual Report included 47 Remedial Design (RD) starts, compared to 39 reported to the auditors by the three regions. The Annual Report stated that 26 RAs were started in FY87, while the three regions reported 21 RA starts. Twenty-one of the 24 RD starts and all of the 15 RA starts that we reviewed were supported by source documentation as FY87 actions. (Figures 6 and 7 below) ------- Total FIGURE 6 REMEDIAL DESIGN STARTS Reaion 2 5 8 Starts Annual Report 22 18 7 Per: Reaion 19 13 7 Sample Size 3 14i/ 7 Valid FY87 Actions 3 13 5 Source Documents Not Located Invalid FY87 Actions 1 2 47 39 24 21 —/ The sample is greater than the regional figure because we located an additional FY87 start in the region's files. Total FIGURE 7 REMEDIAL ACTION STARTS Reoion 2 5 8 Starts Annual Reoort 10 12 4 Pert Reaion 8 10 3 Sample Size 2 10 3 Valid FY87 Actions 2 10 3 Source Documents Not Located Invalid FY87 Actions 26 21 15 15 Additional Comments During our review, we also identified concerns with the Annual Report in such areas as definitions of terms and RI/FS timeframes. Further, a recent Office of Inspector General (OIG) "Capping" Report titled EPA. Office of the Inspector General Audits of Superfund Cooperative Agreements for Fiscal Years 1985 Throuoh 1987 (Audit Report No. E5eE8-09-0018-80838), dated March 29, 1988, consolidated the results of numerous OIG reviews and pointed out many of the same concerns that we are reporting. 8 ------- The Annual Report includes information on the number of "starts" for various activities. During our review we found that there is confusion among Agency personnel on how a "start" is defined. The Agency officially defines "start" as a financial transaction/ i.e., when funds are obligated to perform the activity. It is important for the reader to understand that under this defini- tion, no actual on-site work needs to have begun to officially qualify as a start. Our review of Regional records showed that for many "starts", only funding transactions occurred during FY87. So although these met the Agency's definition, no actual on-site work took place. For example, three of the 42 RI/FS starts and three of the ten RA starts which Region 5 reported were for funding documents prepared in September 1987, but no on-site work had begun at the time of our review in February 1988. The OIG "Capping" Report discussed the same condition. Further, while this definition may be widely known at Headquarters, many Regional officials were not aware of it. This caused problems in our review, because when questioned, Regional officials frequently had to ask the auditors to define a "start" before they could give us any information. We believe that it is important for the reader to fully under- stand the Annual Report's discussion of "operable units", and the implications this recordkeeping method has for overall Superfund accomplishments. EPA frequently divides Superfund "sites" into "operable units" to more easily manage the cleanup process. Each of these operable units (OU) may address a different problem at, or a different portion of, a site. For example, one site in Region 8 had four operable units. An RI/FS was completed on one OU during FY87, and RI/FSs were in process on the other three OUs. These three OUs will be reported as completions in future years, but they all pertain to that one site. At another Region 8 site, records showed that as many as 11 OUs existed. Five of the seven Region 8 RODs signed during FY87 were for OUs at this one site. Because EPA uses this method of recordkeeping, it is difficult to correlate the number of actions (RI/FSs, RODs, etc.) taken.during FY87 with overall cleanup progress at Superfund sites. Appendix D of the Annual Report shows the status of active RI/FSs and RAs on September 30, 1987. This table shows the planned completion date as estimated on January 1, 1987. However, the table may not show any previously published schedules for RI/FSs and RAs. Therefore, if a project will not meet a previously published schedule, the table will not reveal this fact. Section 2.4 of the Annual Report states that EPA chose the January 1, 1987, date because it marked the first update for RI/FS and RA projects after the hiatus between Superfund authorizations. Further, EPA officials believed that choosing ------- .fj an earlier date would have included time lost due to circumstances beyond EPA's control. However, regardless of what may have caused the delays, EFA is not providing the precise information required by CERCLA Section 301(h)(1)(C). The "Capping" Report identified the same concerns we did with the accuracy of the Agency's Superfund information systems. For example, the CERCLA Information System (CERCLIS) is one of EPA's key tracking systems and represents an inventory of all potential hazardous waste sites known to EPA. 016 audits have found that regions are not inputting accurate and up-to-date information into CERCLIS. Even though the Agency was aware of these problems, it relied on CERCLIS for some information in the Annual Report. Finally, the "Capping" Report summarized problems with documenta- tion in regional files, which we also found during our review. In many cases, regional officials had great difficulty locating the required source documents in their files, and in some cases they could not find these documents at all. For example, exhibit 2 shows that source documents could not be located for 28 percent of the removal actions and three percent of the remedial actions we reviewed. In discussing the discrepancies between the numbers in the Annual Report and those that regional officials provided to the auditors, Office of Emergency and Remedial Response (OERR) officials stated that they considered the differences to be minor. These officials objected to our securing information from the regions, stating that Headquarters management systems are the official Agency systems to which the regions report. Further, the Director of OERR explained that there is only one EPA "system", and that even though some data in this system was not accurate, the problem is data entry into the system. Annual Report Chapter 7.0 - Development And Evaluation of Permanent Treatment Technologies We reviewed the information presented in the Agency's report on the Superfund Innovative Technology Evaluation (SITE) Program, since most of the FY87 progress made in developing and evaluating permanent treatment technologies was centered in this program. We again used the January 1988 report draft to begin our field work, and reviewed updated drafts as they became available. To determine if the information presented on the SITE Program was reasonable and accurate, we interviewed officials from the Office of Solid Waste and Emergency Response (OSWER) and the Office of Research and Development (ORD), who jointly administer the program. Additionally, we visited ORD personnel at the Hazardous Waste Engineering Research Laboratory, who are 10 ------- responsible for the technical aspects of the field demonstra- tions, and reviewed available files and source documentation. Based on our review, we believe that the information presented on the SITE Program is generally reasonable and accurate. Annual Report Chapter 13.0 - Executive Branch Estimate of Resources Needed ToComplete CERCLAImplementation We did not perform in-depth audit work on this chapter of the Annual Report, because it consists of FY87 obligations, the resource estimates from the FY88 Operating Flan, and the Agency's budget request for FY89, all of which is readily available information. We wish to emphasize that the figures presented are not estimates of the exact Agency needs for completely accomplishing the requirements of CERCLA. The language of CERCLA suggests that Congress may have wanted estimates in the Annual Report for the total cost of completely implementing the statute. Although some projections beyond FY89 were included in one of the last drafts of the Annual Report, they were removed during the Agency review process. During the Agency's internal review of the report, the Office of General Counsel commented that the resource projections in Chapter 13 do not go as far as the statute requests. Further, the Office of Policy, Planning and Evaluation recommended a more comprehensive approach for future reports. We are not aware of any current, comprehensive study within EPA to define the needs for accomplishing the CERCLA requirements. However, a recent report by the Surveys and Investigations Staff of the Committee on Appropriations, U.S. House of Representatives, points out the gap between current Superfund funding and potential "real" needs. In a March 1988 report, Status of the Environmental Protection Agency's Superfund Program, the committee staff stated that, using average cost estimates to clean up National Priority List (NPL) sites, "793 sites (would) require Federal funds ranging from about $16.7 to $23.8 billion, far in excess of the available $8.5 billion." The report also noted that this estimate does not account for the possibility of hundreds of new sites being added to the NPL. Annual Report Appendix C - Detailed ROD Descriptions Historically, Congress has expresssed concerns with some aspects of EPA's decision-making processes. One purpose of the CERCLA requirement for detailed feasibility studies descriptions was to help Congress better understand how EPA makes decisions on Super- fund sites. 11 ------- The 016 believes that the level of detail contained in the Annual Report's feasibility studies descriptions does not provide suffi- cient information so that EPA's decision-making process on Superfund sites can be fully understood. The feasibility studies write-ups generally contained a brief description of the site, discussion of initial work done at the site, overview information about the feasibility studies (including only one sentence summaries of the cleanup alternatives considered), selected information on the requirements considered, and a brief summary of the reasons for selecting the chosen remedy. In our opinion, the descriptions of the cleanup alternatives need to be expanded to clearly demonstrate the extent of EPA's decision-making efforts. The ROD documents, from which the Annual Report was prepared, contain a great deal of information on the alternatives, such as costs, benefits (including consid- eration of CERCLA goals)/ and risks to the public health and the environment. If the feasibility studies descriptions had contained this additional information, it would have greatly aided the reader in understanding how EPA made these decisions. Exhibit 3 to our report is an example of a more complete feasibil- ity study write-up, which we believe demonstrates the additional information that should have been made available to the reader. Annual Report Preparation Process The process used to prepare the Annual Report was not fully effective. Although this report was due to Congress January 1, 1988, the report was not completed until January 1989. Since this is the first time the report was prepared, some problems were expected. However, the problems which we identified in our report seem.to have been much greater than they should have been. Part of the reason that the Annual Report encountered such diffi- culties is that the report coordinator's resources were limited. Also, at his grade level (GS-13), he was not in a position of authority from which to command action on the part of other organi- zations whose input was vital. For example, as of March 1988, the report coordinator was still uncertain of the sources and accuracy of many of the accomplishments figures in the report. Despite our repeated requests for detailed information over a period of four months, he was unable to secure the information from the Agency offices responsible for compiling it. Further, the coordi- nator had different figures for the same accomplishments, depending on which information system he used. This should not be the case six months after the end of the fiscal year, and is a further adverse reflection on the reliability of the Agency's information systems. 12 ------- OSWER officials stated that the main information system, CERCLis, has been improved for FY88. These officials believe that the use of the improved CERCLIS will enhance the accuracy of the FY88 Annual Report, as well as decrease its preparation time. However, this system will also contain information that is not reliable, unless steps are taken to ensure that regional input to CERCLIS is accurate and complete. 13 ------- CO Q CC O o UJ DC uQ PO ^ LU P* °fl h- LU o: D Q Z LJ O U h- ir o a. LJ a: D Z Z t/1 Q (T O U LJ a: z g o LJ Lt EXHIBIT 1 Page 1 of 2 I P (K < V) UJ ct V) z _ Q. 5 O O z LJ 2 U l/l 5 _i UJ UJ tr CO z g i- o LJ 0. V) z UJ H V) S3I1IAI10V 14 ------- LJ I- o N 00 GO Q O O LJ LY LL O CL LJ LY < D < t < LJ z O 5 u > D Ld s u (T EXHIBIT 1 Page 2 of 2 O O u Q Li. O Q o: o o UJ cc: a; < LO z o 10 Ld O Q UJ 2 Ld o: a: (S) z o o Q U 2 u a: S3I1IAI10V 15 ------- EXHIBIT 3 Page 1 of 6 Feasibility Study Write-Up Example This exhibit highlights the additional information we believe should have been included in the feasibility studies write-ups As an example, we have inserted this extra information, quoted from the ROD, into the existing Annual Report text on the Laskin/Poplar Oil Site. We have indented this additional information to identify it for the reader. LASKIN/POPLAR OIL SITE SOURCE MATERIAL OPERABLE UNIT ASHTABULA COUNTY, OHIO HRS Score: 35.95 Background NPL Rank: 492 The Laskin/Poplar Oil Site is located west of the village of Jefferson in Ashtabula County, Ohio. The 9-acre site is bounded by Cemetery Creek and the Ashtabula Fairgrounds. The site was formerly used for greenhouse operation beginning in the 1930'a. Boilers were installed to heat the greenhouses in the 1950's, and tanks to hold waste oil for burning were built in the 1960's. When the greenhouse business declined, the owner of the site began collecting, reselling, and disposing of the waste oil, much of which contained PCBs and other hazardous materials. The State of Ohio initiated action against the site owner in 1979 for air and water pollution violations. In late 1980, EPA evaluated the need for remedial action at the site and in 1982 undertook an emergency action, which included removing 302,000 gallons of oil, treating 430,000 gallons of contaminated water, and solidifying 205,000 gallons of sludge. Potentially respon- sible parties (PRPs) removed another 250,000 gallons of oil wastewater in 1985 and 1986. EPA issued an Administrative Order of Consent to 12 PRPs between 1984 and 1986, requiring their participation in the remediation process. EPA divided remedial activities at the site into two operable units and an overall site investigation. The first operable unit addressed the incineration of contaminated water and PCB- contaminated oils. The ROD for the second operable unit, which focused on source material that remained on site, was signed September 30, 1987. The overall site investigation still is being conducted and will address ground-water, surface-water, and soil contamination as well as the extent of dioxin contamination. 17 ------- EXHIBIT 3 Page 2 of 6 Description of Site Work When the overall RI was initiated, the site contained 34 tanks, 4 pits, and treatment and retention ponds. Preliminary sampling indicated large amounts of seepage from tanks and unlined pits into surrounding soils. Investigations also identified the threat from contaminants leaching into ground and surface water, including Cemetery Creek, which runs into the Grand River, a source of drinking water for 25,000 residents. Potentially responsible parties, under consent order, initiated the study for the second operable unit in 1985 to characterize the remaining on-site wastes. Results indicated that waste materials still present at the site after emergency removal actions posed a serious threat to human health and the environ- ment through the threat of fire and exposure to PCBs. Major contaminants of concern at the site are PCBs, polynuclear aromatic hydrocarbons (PAHs), and volatile organic compounds (VOCs), all of which were present in high concentrations in waste oil and surrounding soils. Description of Feasibility Study The Phased Feasibility Study (PFS) for the second operable unit evaluated remedial alternatives for the removal of source materials, including sludges, waste oils, wastewaters, and contaminated soils (included in this operable unit because they were a source of potential contamination of ground and surface water). All attempts were made during the PFS to ensure that the alternatives developed for this operable unit were consis- tent with final remediation for the site. Remedial alternatives developed included the following: Alternative 1 Under this alternative, no remedial action would be taken at the site. The threat to public health and the environment would remain. Alternative 2 Alternative 2 consists of solidifying all of the liquid wastes and placing all of the source material in a licensed TSCA or RCRA facility as appropriate. All tanks would be dismantled and taken off-site. The pit area would be backfilled with onsite soils and graded to preclude ponding. 18 ------- EXHIBIT 3 Page 3 of 6 No long term maintenance or monitoring at the Laskin/Poplar Oil site would be required under this alternative. However, the waste would not be treated prior to landfilling at the licensed facility. The long terra depend- ability of any landfill is unknown. The cost estimate for Alternative 2 is $4.2 million. Alternative 3 Alternative 3 combines on-site incineration of the oils, sludges, and source soils with off-site treatment of the wastewaters, decon- tamination water, and scrubber water. The incinerator ash and dismantled tanks would be disposed in an off-site RCRA licensed facility. If tests indicated that the ash could be delisted, the ash could be sent to a sanitary landfill. The excavated pit area would be backfilled with onsite soils and graded to preclude ponding. This option would not require any long term maintenance or monitoring at the site. All source material would be treated to the greatest extent practicable. The cost estimate for Alternative 3 is $8.5 million. Alternative 4 Alternative 4 utilizes off-site incineration for all oils, sludges, and highly contaminated soils. All wastewaters and decontamination water would be treated at an off-site treatment facility. The tanks would be demolished and disposed of at a licensed facility offsite. The excavated areas would be backfilled with on-site soils and graded to preclude ponding. This option would not require any long term maintenance or monitoring at the site. All source material would be treated to the greatest extent practicable. The cost estimate for Alternative 4 is $12.2 million. Alternative 5 Alternative 5 includes on-site incineration of all oils and sludges as well as soils with greater than 25 parts per million (ppm) PCBs or 500 ppm total halogenated organics. The remainder of soil excavated from the tank and 19 ------- EXHIBIT 3 Page 4 of 6 pit areas would be landfilled off-site at a RCRA licensed hazardous waste facility along with all dismantled tanks. All wastewaters, decontamination water, and scrubber water would be treated at an off-site treatment facility. The excavated areas would be backfilled with on-site soils and graded to preclude ponding. This alternative would not require any long term maintenance or monitoring at the site. The most highly contaminated source material would be permanently treated. However, the soils that would be landfilled, which comprise roughly one-half of the source material, would not be treated. The off-site disposal of waste without treatment is the least favored option under SARA. The cost of Alternative 5 is $5.8 million. With the exception of no action (Alternative 1), all of the alternatives would effectively and permanently minimize the danger to the public health and the environment at the site area through the removal of the contaminated material. The use of an off-site landfill (Alternatives 2 and 5) is conventional, easy to implement, and transfers the operation and maintenance to the owner/operator of the landfill. The most significant disadvantage of this option is that it does not treat the contaminants, so there is no reduction in toxicity, volume, or mobility. It also may be difficult to main- tain the long term integrity of hazardous waste landfills as required by the U.S. EPA's off- site policy. The off-site disposal of contami- nated materials without treatment is the least preferred option under SARA. The off-site incineration of the source mate- rials (Alternative 4) offers the advantage of permanently destroying the contaminants in the waste material and the soils. It is a proven technology that transfers operation and maintenance to the owner/operator of the incinerator facility. One of the most signi- ficant disadvantages of this alternative is implementability. The material must be pack- aged in small fiber drums for transportation. 20 ------- EXHIBIT 3 Page 5 of 6 The facilities available have commitments to their regular clients which control when and at what rates the source material can be taken care of. In addition, a number of off-site hazardous waste incinerators have shown a reluctance to accept the waste material due to high levels of lead found in some of the sludges. Transportation of the waste to an off-site facility increases both the cost of this alternative and the risks posed to the public by movement of contaminated materials on the highways. As with off-site incineration/ on-site incineration (Alternatives 3 and 5) would utilize a proven technology to permanently destroy the contaminants in the source material. The advantages of this alternative are that the packaging requirements necessary for off- site incineration would be avoided, and all material could be processed in one year or less once the incinerator begins operation. This alternative also meets the goal of SARA of implementing a remedial action which incor- porates treatment rather than land disposal where practicable. A comparison of the alternatives on the basis of protectiveness of public health and the environment shows that on-site and off-site incineration provide a high level of protec- tion. Alternatives which use a high degree of landfilling provide an equal level of protection in the short run. The long run dependability of landfills, however, is unknown. There would be no beneficial impacts associated with the no action alternative. Any detrimental environmental effects associ- ated with the waste and soil removal operations would essentially be the same for each alter- native except the no action alternative. These short term negative impacts could be minimized using proper construction methods. The PFS identified the Federal and State applicable or relevant and appropriate requirements (ARARs) that the remedial action must meet, consistent with the requirements of CERCLA. One technology considered for use on the site was on-site contain- ment of the wastes. However, because the RCRA land disposal restrictions were considered ARARs, this option was not consi- dered further. Other ARARs identified for this site included 21 ------- EXHIBIT 3 Page 6 of 6 RCRA thermal destruction, incinerator, and off-site transporta- tion regulations; Ohio Clean Air Act limits on incinerator emissions; and Ohio regulations for the off-site transportation of hazardous waste. The State of Ohio and the U.S. EPA expressed preference for remedial actions that would provide destruction of hazardous constituents in lieu of transporting untreated wastes to a RCRA approved location. Section 121(b)(l) of SARA states "Remedial actions in which treat- ment permanently and significantly reduces the volume, toxicity or mobility of the hazardous substances/ pollutants, and contaminants is a principal element, are to be preferred over remedial actions not involving such treatment. The off-site transport and disposal of hazar- dous substances or contaminated materials without such treatment should be the least favored alternative remedial action where practicable treatment technologies are avail- able ." Public comment on the RI/FS was received during a public availability session, a public meeting, and through written comments. Residents and local officials supported the selected remedy discussed below. Description of Selected Remedy The remedy selected was on-site incineration of all oils, sludges, and contaminated soils and the off-site treatment of contaminated waters (Alternative 3). This alternative uses a proven technology (i.e., incineration), and, because contaminated materials are destroyed it satisfies CERCLA's preference for permanent solutions and use of treatment technologies. The remedy also does not involve the off-site transportation of hazardous materials (i.e., the oils, sludges, and contaminated soils) before treatment; when implemented, it will provide a high level of protection of human health and the environment. The remedy is also expected to meet all ARARs for this operable unit. The State of Ohio was consulted during the remedy selection process and concurred with the chosen alternative. i « 22 ------- |