vvEPA Groundwater Pump and Treat Systems: Summary of Selected Cost and Performance Information at protection Superfund-flnanced Sites Fact Sheet and Order Information Agency Introduction Hazardous waste sites with groundwater contamination and pump and treat (P&T) systems exist throughout the nation. At a number of these sites the U.S. EPA and the associated States fund the operation and maintenance (O&M) of the P&T systems because financially-viable responsible parties have not been identified. In a recent effort to better understand current and future O&M costs and to launch an effort to optimize these P&T systems, EPA has prepared a report entitled: Groundwater Pump and Treat Systems: Summary of Selected Cost and Performance Information at Superfund-financed Sites. In the report U.S. EPA identifies the 88 "Fund-lead" planned or operating pump and treat systems nationwide, • presents cost estimates and performance information on each system, • prioritizes the systems in terms of potential life- cycle savings resulting from optimization, and selects 20 to receive optimization evaluations. Categories of Collected Data The following categories of information were collected for each of the 88 identified P&T systems, and the results are summarized in the report: Site name, location, and CERCLIS number Contact information for the EPA and State site managers, and the lead site contractor • System status (e.g., design, installed, operational, etc.) The date the Record of Decision (ROD) and any amendments were signed Dates when construction of each system was completed and when each system became operational and functional, and estimated dates for transition of the site to the associated State and achievement of restoration goals • System goal (e.g., containment, restoration, etc.) Primary contaminants of concern and the presence of non-aqueous phase liquids (NAPL) Estimated annual O&M costs Estimated annual costs associated with groundwater monitoring as well as the number of monitoring wells sampled and the sampling frequency Approximate pumping rate and the number of groundwater extraction wells Types of treatment processes utilized • Control of plume migration and estimated progress toward groundwater restoration Selected Findings The collected information reveals that 67 of the 88 Fund-lead P&T systems are operational and 21 are pre- operational (i.e., P&T is specified in the ROD but the system is in the design stage, being installed, or installed but not yet operational). Based on the systems that provided O&M cost estimates, the total annual O&M cost for the Fund-lead P&T systems in 2002 is estimated to be approximately $38 million, with EPA incurring approximately $32.5 million of the total annual cost and the States incurring the remaining $5.5 million. However, over time, these P&T systems will be transferred to the States, and these cost estimates suggest that by 2015, the EPA costs will fall below $1 million and the State costs will .collectively rise above $30 million. Trend of Estimated Annual O&M Costs of Fund-lead P&T Systems $40,000,000 5,000,000 3,000,000 $25,000,000 $20,000,000 $15,000,000 $10,000,000 $5,000,000 — * — O&M cost paid by EPA — • — O&M cost paid by States *V\ • _«-• V „ •'*"* * *\ r **Jm ^~* ***** ^ m-M K. " *^%-^ o o OO oo O o Or-T-T- oooo ------- _2p02 'um an reat rormance nforrnaion and Orqer Information I III''' * * KnUL lilSBl 'imDana^TreatJSystems: Summaty of Selected Cost and Performance Information at Superfund-fmanced Sites without =iB_ Waste ' To _ '^ m'aii or fax it to the Following address: 45242 ------- |