Laws & Regulations

Effluent Guidelines Plan Support Documents

Miscellaneous support documents for Effluent Guidelines Plan

Cyanide Measurements: Questions and Answers

Questions and answers about cyanide measurements in Clean Water Act analytical methods (40 CFR Part 136).

Public Notice: 2018-13 L.P.C. & D., Inc.

The U.S. EPA is authorized under Section 309(g) of the Clean Water Act (CWA), 33 U.S.C. §1319(g), to assess a civil penalty after providing the person subject to the penalty with notice of the proposed penalty and the opportunity for a hearing.

Chevron Phillips Chemical Puerto Rico Historical and Decision Documents

EPA April 10, 2017 Response to Energy Answers Arecibo, LLC Request for PSD Air Permit Limited Extension

Prevention of Significant Deterioration (PSD) of Air Quality Request for a PSD Permit Extension for the Energy Answers Arecibo Puerto Rico Renewable Energy Project

Final Action on Clean Water Act Hazardous Substances Spill Prevention

EPA is taking final action to establish no new requirements under Clean Water Act (CWA), Section 311.

Amendments to EPCRA Sections 304 and 312 – America’s Water Infrastructure Act (Section 2018)

Section 2018 of the America’s Water Infrastructure Act, enacted on October 23, 2018, amended the emergency release notification and the hazardous chemical inventory reporting requirements of the Emergency Planning and Community Right-to-Know Act (EPCRA).

Chemical Safety Alert: Shaft Blow-Out Hazard of Check and Butterfly Valves

Certain types of check and butterfly valves can undergo shaft-disk separation and fail catastrophically, even when operated within their design limits of pressure and temperature, causing toxic/flammable gas releases, fires, and vapor cloud explosions.

Chemical Safety Alert: Safe Storage and Handling of Swimming Pool Chemicals

Hazards of pool water treatment and maintenance chemicals (e.g., chlorine), and the protective measures pool owners should take to prevent fires, toxic vapor releases, and injuries. Triggered by improper wetting, mixing, or self-reactivity over time.

Attachment C-II Certification of the Applicability of the Substantial Harm Criteria

Qualified facility self-certification of the Applicability of the Substantial Harm Criteria for oil production facilities.

Chemical Accident Prevention: Site Security

This chemical safety alert assists facilities that routinely handle extremely hazardous substances, along with SERCs, LEPCs, and emergency responders, in their efforts to reduce criminally caused releases and vulnerability to terrorist activity.

Federal Register Notice: Oil Pollution Prevention; Non-Transportation-Related Onshore and Offshore Facilities

Federal Register covering the prevention of discharges of oil into navigable waters.

Risk Management Plan (RMP) Delay Rule Vacatur

This page covers the vacatur of the RMP delay rule.

Chemical Safety Alert: Rupture Hazard from Liquid Storage Tanks

This alert describes some of the tank failures and identifies standards and precautions that apply to above ground liquid storage tanks. Examples here held liquid fertilizers and had defective welds.

Final Amendments to the Standards of Performance for New Stationary Compression Ignition Internal Combustion Engines Located in Remote Areas of Alaska

EPA amended This action amends the Standards of Performance for Stationary Compression Ignition (CI) Internal Combustion Engines to provide regulatory relief for owners and operators of stationary CI engines in remote areas of Alaska.

Compliance Advisories and Enforcement Alerts

Table listing links to Compliance Advisories and Enforcement Alerts issued by the Office of Enforcement and Compliance Assurance

Active Underground Mines

EPA announces public comment period for a NPDES permit modification for Ocean Era off the Florida coast

Comments must be received by November 25, 2024

EPA News Release: EPA announces public comment period for a NPDES permit modification for Ocean Era off the Florida coast

Release Date: October 25, 2024

User Guide to Downloading and Using SYR3 Data from EPA's Website

The user guide describes how the compliance monitoring data for the third Six-Year Review can be downloaded and used from EPA’s website.

Regional Screening Levels (RSLs) - Equations

Regional Screening Level RSL equations page provides quick access to the equations used in the Chemical Risk Assessment preliminary remediation goal PRG risk based concentration RBC and risk calculator for the assessment of human Health.