Breaking Down Leachate

In 1993, The U.S. Environmental Protection Agency (EPA) promulgated criteria for municipal solid waste (MSW) landfills that included closure and post-closure care (PCC) requirements (40 CFR Part 258). These requirements established a 30-year PCC period that a state could increase or decrease. The PCC requirements were intended to protect human health and the environment from releases from closed landfills using four primary safeguards: leachate management; monitoring landfill gas (LFG) migration; groundwater monitoring; and maintaining the integrity and effectiveness of the final cover. Because leachate management is critical in PCC and leachate quality in part determines the length of ...

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