Laws & Regulations

General permits for the Navy's Sink Exercise (SINKEX) Program are issued by the EPA. The SINKEX Program uses obsolete military vessels as targets for at-sea live-fire exercises.

Final Guidance on the Use of Associated Program Support Costs by the Pollution Control (Clean Water Act Section 106) Program for States, Interstates and Tribes

Final Guidance on the use of Associated Program Support Costs by the Pollution Control (Clean Water Act Section 106) Program for States, Interstates and Tribes)

Past Effluent Guidelines Program Plans

Past Effluent Guidelines Program Plans and support documents.

Final NPDES Permit for Barrio Nuevo Water Treatment Plant in Puerto Rico

EPA's NPDES wastewater permit for the Barrio Nuevo Water Treatment Plant in Puerto Rico.

Plain Writing

EPA annual reports on plain writing efforts.

TRI in the Classroom

Resources and materials for educators about how to use TRI data for lesson plans.

Iowa SIP: EPA Approved Iowa Nonregulatory Provisions and Quasi-regulatory Measures 40 CFR 52.820(e)

EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Iowa SIP, EPA Approved Iowa Nonregulatory Provisions and Quasi-regulatory Measures 40 CFR 52.820(e)

Draft NPDES Permit for Puerto Rico Energy in Bayamon, PR

EPA's NPDES wastewater permit for the Puerto Rico Energy in Bayamon PR.

Lead and Copper Rule 90th Percentile Calculator

The LCR 90th Percentile Calculator spreadsheet can be used to calculate 90th Percentile values used to determine the action levels for both Lead (Pb) and Copper (Cu) by the linear interpolation method.