https://www.epa.gov/npdes-permits/maryland-npdes-permits
Maryland NPDES Permits | US EPA
Jun 30, 2025 - NPDES water permits issued in Maryland.
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https://19january2021snapshot.epa.gov/npdes-permits/illinois-surface-discharge-permit-electronic-reporting-requirement_.html
Illinois Surface Discharge Permit Electronic Reporting Requirement | NPDES Permits Around the...
Nov 27, 2020 - Illinois Surface Discharge Permit Electronic Reporting Requirement information plus waiver.
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https://www.arkansasenergy.org/water/permits/npdes/pretreatment/p_permits_online_pretreatment_additional.asp?PmtNbr=AR0022063&Category=PN&Title=Public%20Notice
DEQ - PDS - Permits Online NPDES Additional
DEQ - The Arkansas Department of Environmental Quality
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