Science & Technology

Combined Air Emissions Reporting Project

This page describes what the CAER project is and what the CAERS reporting system is.

Regulatory Determination 2 Support Documents for DDE

Learn about the support documents for DDE

Fact Sheet: Third Contaminant Candidate List (CCL 3)

CCL 3 Fact Sheet

CCL 3 Support Documents - Screening and PCCL Documents

Learn about the support documents for CCL 3 screening and PCCL

CCL 3 Support Documents - Final CCL 3 (and other documents)

Learn about the support documents used to develop the Final CCL 3

CCL 3 Support Documents - Universe Documents

Learn about the support documents for identifying the universe for CCL 3

Drinking Water Contaminant Candidate List (CCL) and Regulatory Determination

Learn about EPA's drinking water Contaminant Candidate List and Regulatory Determinations.

Definition of "Contaminant"

Learn about the definition of a contaminant

Harmful Algal Blooms (HABs) in Water Bodies

Technical, scientific, policy, regulatory, statutory, guidance and research information about cyanobacterial harmful algal blooms and cyanotoxins in drinking water and water bodies.

Evaluating Contaminant Occurrence and Exposure Data for Six-Year Review of Drinking Water Standards

Learn about EPA's goals in considering contaminant occurrence and exposure analysis for public water systems

Air Quality System (AQS)

The Air Quality System (AQS) is EPA's repository of ambient air quality data. AQS stores data from over 10,000 monitors, 5000 of which are currently active.

The Off-Site Rule requires that CERCLA wastes may only be placed in a facility operating in compliance with the Resource Conservation and Recovery Act (RCRA) or other applicable Federal or State requirements. Learn more here.

Water and Wastewater Systems Sector Cybersecurity

Water & Wastewater Systems Sectory Cybersecurity is helping water & wastewater entities build resilience to cyber threats & hazards by providing information & resources that water & wastewater utilities can leverage to enhance their cybersecurity posture.

Soil Gas Sampling

Field Branches Quality System and Technical Procedures: This document describes general and specific procedures, methods and considerations to be used and observed when collecting soil gas samples for field screening or laboratory analysis.

Savannah River Mercury TMDL Data Report: Figure 1: Water Sample Locations for the Savannah River Mercury TMDL Project, July - August 2000

Contains a map of water sampling locations for the Savannah River Mercury TMDL Project.

Savannah River Basin REMAP: A Demonstration of the Usefulness of Probability Sampling for the Purpose of Estimating Ecological Condition in State Monitoring Programs: Appendix F: Tables

Contains tables used in the Savannah River Basin Regional Environmental Monitoring and Assessment report.

Savannah River Basin REMAP: A Demonstration of the Usefulness of Probability Sampling for the Purpose of Estimating Ecological Condition in State Monitoring Programs: Appendix F: Figures

Contains figures used in the Savannah River Basin Regional Environmental Monitoring and Assessment report.

Savannah River Basin REMAP: A Demonstration of the Usefulness of Probability Sampling for the Purpose of Estimating Ecological Condition in State Monitoring Programs: Appendix J: Peer Review Comments and the Response

Contains peer review comments on the Savannah River Basin REMAP report, and responses to those comments.

Kentucky Straight Pipes Report: Harlan, Martin, and Bath Counties

The original purpose of this project was to select a community for a pilot project which would demonstrate concepts presented in EPA's ""decentralized wastewater systems"" initiative.