Science & Technology
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What do I do if I get a Post Fatal Error or Load Active Error?
The error received by the user means the process failed and there is nothing to load. If the process crashes the system doesn't provide good diagnostic information, because of this, Regional Contacts should forward to AQS Support Team because there is nothing they can do to fix.
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What do I do if I get the message: "A Pre-production record already exists for Monitor-Date-Time"?
The following process needs to be run: Understand: The error is caused by pre-production raw data that has not been posted. Review the load report and note the monitor id(s) (state-county-site-parameter-poc) of the raw data with this error. To delete this data, run the Maintain -> Sample Values -> Delete…
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How do I reactivate monitoring at a site?
The following procedure is only needed if monitoring occurred for the pollutant of interest at the site previously and was stopped for all the monitors at the site for that pollutant. Log into AQS and connect to the screening group that owns the primary monitor at the site. Click on…
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COVID Impacts Session (2023 EIC)
Presentations/papers given at the COVID Impacts session of the 2023 IEIC
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The Effects of Short-Term, In Utero Lead Exposure on Birth Outcomes by Trimester: Quasi-Experimental Evidence from NASCAR’s Deleading Policy
This is a working paper titled "The Effects of Short-Term, In Utero Lead Exposure on Birth Outcomes by Trimester: Quasi-Experimental Evidence from NASCAR’s Deleading Policy"
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Mineral Mining and Processing Effluent Guidelines
Overview of the Mineral Mining and Processing category (40 CFR Part 436), with support documents
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Town of Chino Valley Municipal Water System Improvement Project Environmental Assessment and Finding of No Significant Impact
EPA Region 9 has prepared an Environmental Assessment (EA) describing the potential environmental impacts associated with, and the alternatives to, the proposed Water System Improvement Project in the town of China Valley, Arizona. This Finding of No Signi
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Additional Resources
Additional Resources
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Risk-Screening Environmental Indicators (RSEI) Methodology Version 2.3.4
the document for Risk-Screening Environmental Indicators (RSEI) Methodology Version 2.3.4, December 2015
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EPA Research Partner Support Story: Assessing sediment habitat quality using novel remote sensing technologies
Evaluating sediment habitat quality in an urban estuary to inform sediment remediation activities
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Request for Reconsideration 12004A
RFR 12004A
Request for Reconsideration – Letter dated 5/28/13; received 5/28/13) -
EPA Request for Correction 12004 (Exhibit F)
EPA Request for Correction 12004 (Exhibit F)
State Perchlorate Advisory Levels as of 4/20/05
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What is the National Coastal Condition Assessment?
The National Coastal Condition Assessment (NCCA) is a statistical survey of the condition of our Nation’s marine and Great Lakes coasts. The NCCA builds from previous National Coastal Assessments.
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National Coastal Condition Assessment 2015 Technical Support Document
PDF of the National Coastal Condition Assessment 2015 Technical Support Document.
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Clinical scenario 6 for particle pollution
Clinical Scenario 6
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Clinical scenario 3 for particle pollution
Clinical Scenario 3
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Geospatial Toolboxes
GIS toolboxes available as part of EnviroAtlas
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Technical Data and Reports on Lead Measurements and SIP Status
EPA collects data from the states and regions on their air quality and state implementation plan (SIP) progress; and uses these to create reports, charts, and maps.
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Updates Under Consideration for Natural Gas and Petroleum Systems in the 1990-2016 GHG Inventory
Materials related to EPA's June 22, 2017 Stakeholder Workshop on updates to the 1990-2017 U.S. Inventory of Greenhouse Gas Emissions and Sinks, including draft agenda and memos.
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Net Zero
The Net Zero Strategy is about consuming only as much energy as produced, achieving a sustainable balance between water supply and demand, and eliminating solid waste.