Illinois requires PFAS testing for wastewater and sewage solids starting in 2027
Starting January 1, 2027, Illinois requires covered wastewater facilities and applicants seeking to spread sewage solids on land to test for chemicals known as PFAS.
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What it does
Starting January 1, 2027, covered wastewater applicants must submit PFAS test results. Major facilities must test periodically, with agency-approved reductions possible after two consecutive years without measurable PFAS results.
Starting January 1, 2027, applicants seeking permits to spread sewage solids on land must provide PFAS test results. Their permits must also require periodic testing.
Argument forRequired testing could help environmental officials identify PFAS chemicals in wastewater and sewage solids before approving discharge or use on land.
Argument againstRepeated testing for every PFAS chemical with an accredited testing method could add laboratory work for wastewater facilities and sewage solids operators.
More detail
The Illinois Environmental Protection Agency must require PFAS test results in covered wastewater applications and periodic testing in major facilities' discharge permits. Applications cover wastewater that may contain PFAS. At facilities designated as major by state and federal environmental agencies, sewage plants test incoming water, outgoing water, and sewage solids. Other major industrial facilities test outgoing water. Testing covers all PFAS chemicals for which accredited wastewater testing methods exist. Operators may request less frequent testing after two consecutive years without PFAS results above the minimum amount the tests can reliably measure. The agency must accept the request before reducing testing. The law takes effect January 1, 2027.
The Illinois Environmental Protection Agency must require PFAS test results before issuing covered permits to spread sludge or biosolids on land, and require periodic testing afterward. The requirements apply to permits under Section 12(b) for spreading sludge or biosolids—solids from sewage treatment—on land. Testing covers all PFAS chemicals for which accredited wastewater testing methods exist. The law takes effect January 1, 2027.
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