Science & Technology
-
Reports and Data - National Wetland Condition Assessment 2016
Products from the national lakes assessment 2017 including report, technical report, factsheet, data files, and data dashboard
-
National Wetland Condition Assessment 2011 Report
PDF of the NWCA 2011 final report
-
National Rivers & Streams Assessment 2013/14 Field Operations Manual Wadeable
The Field Operations Manual for the NRSA 2013/14 Wadeable
-
National Rivers & Streams Assessment 2013/14 Field Operations Manual Non-Wadeable
The Field Operations Manual for the NRSA 2013/14 Non-Wadeable
-
National Coastal Condition Assessment 2010 Great Lakes Technical Memorandum
PDF of the NCCA 2010 Great Lakes Technical Memorandum
-
National Lakes Assessment Design Documents
Design documents for the National Lakes Assessment
-
Wadeable Streams Assessment 2004 Report
Download a PDF of the Wadeable Streams Assessment 2004 Report
-
Regional Highlight - Mercury in Fish Tissue in the Pacific Northwest
NLA 2012 Highlight - Mercury in fish tissue in three Pacific Northwestern states
-
National Coastal Condition Report II (2005)
Download a PDF of the National Coastal Condition Report II 2005
-
Memo's of Telephone Conversation Regarding Explosive Storage
Memorandum of Telephone Converstion Between Lieutanant Commander Sequine
-
Region 4 Virtual Reading Room - LCP Chemicals Site, Brunswick, GA
Frequently requested region 4 FOIA related documentation about the LCP Chemicals Site in Brunswick, GA
-
Regulatory Determination 1 Support Documents for Sulfate
Sulfate Support Documents
-
Regulatory Determination 2 Support Document for MTBE
Learn about the support document for MTBE.
-
Regulatory Determination 1 Support Documents for Sodium
Sodium Support Document
-
EPA Region 4 Air Sensor Loan Programs
EPA R4 now loans portable fine particulate matter (PM2.5) sensors to the public. The program helps drive positive change and improve public health by collecting non-regulatory outdoor air quality data.
-
Report: Results of Site Visit to the Wyckoff/Eagle Harbor Superfund Site on Bainbridge Island, Washington
Report: Results of Site Visit to the Wyckoff/Eagle Harbor Superfund Site on Bainbridge Island, Washington
-
EPA Response to Request for Reconsideration 12004A, Regarding Drinking Water: Regulatory Determination on Perchlorate
EPA Response to RFR (03/27/2014)
-
Electric Vehicle Myths
Facts and myths about electric vehicles.
-
How to Cite CMAQ
These publications document the algorithms and performance of the CMAQ model. Publications recommended for citation are grouped according to topic and model version.
-
CRACMM
The Community Regional Atmospheric Chemistry Multiphase Mechanism