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
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