After 20 years of monitoring and maintenance, the 8 Environmental Protection Agency EPA and the landfill owner were making plans for the final closure of the facility. 9 Enter Ahlers.

经过20年的监管和维护，美国环境保护局和垃圾堆填区的业主正计划关闭该场所。

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CNN's Doug Gross, Emily Schmidt, Elise Labott and Mike Ahlers contributed to this report.

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