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, EPA obtained $109 million from PRP settlements. ? Historically, some funds remain attached to cleanup agreements with states and contracts with private panies for work no longer required. The agency makes efforts to deobligate prior year’s funds from these agreements and contracts. The recaptured funds are used for longterm construction, site investigation, remedy selection, emergency response, and other activities. ? The agency is working to increase the efficiency and effectiveness of remedies by reviewing and improving high cost remedies and paying careful attention to design and operation. Specifically, EPA has: — Created the Contaminated Sediments Technical Advisory Group. This group of EPA experts monitors the progress at large, plex, or controversial contaminated sediment Superfund sites and provides advice to EPA regions in order to help control costs. — Updated remedies based on changes in science, technology, or new information. For instance, in FY 2021, EPA updated 60 remedies, saving an estimated $85 million. — Developed new cost estimating tools for use during design. — Reviewed and modified contaminated groundwater treatment systems. ? Finally, EPA is using new, more effective technologies for site management. For instance, the agency is exploring the use of the Triad Approach that involves 1) systematic project planning, 2) dynamic work plan strategies, and 3) realtime measurement technologies for site investigation. Since this approach uses more realtime sample analysis and decision making, it can potentially reduce costs and cleanup time. PRP Settlements EPA continues to actively pursue PRP settlements to pay for Superfund cleanup and removal actions. For every case where EPA’s total past costs exceed $200,000, the agency attempts to either settle with the PRPs, file a claim against them, or formally document its reasons for waiving cost recovery before the statute of limitations expire. The agency also seeks cash out settlements, which are cash payments in resolution of liability for past and future costs, that designate funds to a special, interestbearing account. The number of settlements creating site specific special accounts has increased over the last five years. In FY 2021, 106 special accounts were created. Private party cleanup mitments are also sought. In FY 2021, EPA negotiated $523 million in private party mitments for future response work, including cash outs, and $157 million in private party mitments for EPA’s past costs. Private