Laws & Regulations
-
Water Quality Standards Regulations: California
California water quality standards that are EPA-approved or in effect for Clean Water Act purposes.
-
EPA Approved Regulations in the Puerto Rico SIP
EPA Approved Regulations in the Puerto Rico SIP
-
UIC-09-2025-0046: 1284 Kilauea K&M LLC, Hilo, HI; Proposed Settlement of Safe Drinking Water Act Administrative Penalty
Consent Agreement and Proposed Final Order between EPA Region 9 and1284 Kilauea K&M LLC, Hilo, Hawaii. Docket No. UIC-09-2025-0046
-
Federal Guidance for the Establishment, Use and Operation of Mitigation Banks
Policy guidance for the establishment, use and operation of mitigation banks for the purpose of providing compensatory mitigation for authorized adverse impacts to wetlands and other aquatic resources.
-
EcoElectrica, L.P. Peñuelas, PR
This page contains the final PSD permit for EcoElectrica, L.P. Peñuelas, PR
This permit was issued on March 13, 2018. -
Long Term 2 Second Round Source Water Monitoring and Bin Placement Memo
The Long Term 2 Enhanced Surface Water Treatment Rule (LT2ESWTR) applies to all public water systems served by a surface water source or public water systems served by a ground water source under the direct influence of surface water.
-
Total Coliform Rule Compliance Help for Public Water Systems
The following materials for public water systems (e.g., owners and operators) are to assist in complying with the requirements of the Total Coliform Rule and Revised Total Coliform Rule
-
Ground Water Rule Compliance Help for Primacy Agencies
Primacy agencies and states can use materials on this page to support compliance with the Ground Water Rule.
-
Interim Enhanced Surface Water Treatment Rule Documents
The IESWTR balances the need for treatment with potential increases in disinfection by -products. The materials found on this page are intended to assist public water systems and state in the implementation of the IESWTR.
-
Surface Water Treatment Rules
A page for Surface Water Treatment Rules that provides a summary, history, and compliance information.
-
Sanitary Survey Guidance Manuals
This page contains guidance manuals for primacy agencies conducting sanitary surveys at drinking water systems.
-
Ground Water Rule Compliance Help for Water System Owners and Operators
EPA has developed materials for drinking water system owners and operators. The materials on this page can assist in complying with requirements of the Ground Water Rule (GWR).
-
Public Notification Rule
The Public Notice rule is part of the Safe Drinking Water Act (SDWA). The rule ensures that consumers will know if their drinking water does not meet standards; or if the water system fails to test its water or has been granted a variance or an exemption.
-
Five Year Self- Inspection Requirements under Aircraft Drinking Water Rule
This page contains the ADWR memo regarding self-inspections.
-
Final NPDES Permit for Aguirre Power Plant Complex in Puerto Rico
EPA's NPDES wastewater permit for the Aguirre Power Plant Complex in Puerto Rico.
-
HOVENSA, St. Croix, VI (GT 13-NOx limit)
GT 13 – NOx limit final PSD permit
-
Caithness Long Island, LLC Brookhaven, NY
Caithness draft PSD permit application
-
HOVENSA, St. Croix, VI (GT-10 Monitoring Method)
GT-10 Monitoring Method final PSD permit
-
HOVENSA, St. Croix, VI (Ultra Low-NOx Converter)
Ultra Low-NOx Converter final PSD permit
-
TMDLs Where Mercury Loadings are Predominantly from Air Deposition
A presentation documenting Total Maximum Daily Load (TMDL) approaches for cases in which mercury loadings are predominantly from air deposition into waters.