Learn the Issues
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Frequent Questions about Using the National Service Center for Environmental Publications
Information to fill in the gaps in explaining how to use the NSCEP site that may help the public when trying to locate and obtain documents.
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Guidance Documents Managed by the Office of Chemical Safety and Pollution Prevention (OCSPP)
Links to policy and guidance documents managed by the Office of Chemical Safety and Pollution Prevention (OCSPP).
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Newkirk Novak Construction Partners, Inc. - Clean Water Act Public Notice
The EPA is providing notice of a proposed Administrative Penalty Assessment in the form of an Expedited Settlement Agreement against Newkirk Novak Construction Partners, Inc. for alleged violations at the Raytown High School New Auxiliary Gym construction
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Brad Anderson d/b/a Anderson Farm - Clean Water Act Public Notice
The EPA is providing notice of a proposed Administrative Penalty Assessment in the form of an Expedited Settlement Agreement against Brad Anderson d/b/a Anderson Farm for alleged violations of the CWA. Anderson Farms excavates and sells soil at and from th
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City of Prosser, Washington - Clean Water Act Public Notice
The EPA is providing notice of a proposed Administrative Penalty Assessment in the form of an Expedited Settlement Agreement against the City of Prosser, Washington, for alleged violations associated with the management of sewage sludge in or around Prosse
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EPA Evaluation of 2022-2023 Milestone Progress and 2024-2025 Milestone Commitments
EPA assesses 20242025 milestone progress and future commitments.–
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TMDL Report and Approval Documents for Parker River Watershed, MA
View supporting documents for the Parker River Watershed in Massachusetts.
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Steps to Get the Safer Choice Label on Your Product
EPA allows the use of the Safer Choice Label by high-performance products that demonstrate safer chemistry
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PCS-ICIS Operator Definition
The Permit Compliance System (PCS) provides information on companies which have been issued permits to discharge waste water into rivers.
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PCS-ICIS Overview
The Permit Compliance System (PCS) provides information on companies which have been issued permits to discharge waste water into rivers.
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Future of Climate Change
The future of climate change describes how the changes and impacts we are already seeing are anticipated to evolve in the years to come.
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PCS-ICIS Customized Search
The Permit Compliance System (PCS) provides information on companies which have been issued permits to discharge waste water into rivers.
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Particle Pollution Designations - Where You Live
Particle pollution state and tribal designations
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Northern Indiana Public Service Company Bailly Generating Station Current Documents, Reports and Graphics for 2014
Documents, Reports and Graphics for Northern Indiana Public Service Company Bailly Generating Station
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Information on Sites Eligible for Brownfields Funding under CERCLA § 104(k)
EPA will use the information outlined in the document to determine if sites are eligible for brownfields funding under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) § 104(k).
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Why did NOAA recalculate the historic time series record of Lake Erie harmful algal bloom severity in 2025?
Recent advances in satellite technology give scientists a much clearer picture of what’s happening with harmful algal blooms in large bodies of water like Lake Erie. Modern satellites provide imagery nearly daily and at nine times the spatial resolution as before. They can more accurately detect and quantify the amount…
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What changed when NOAA updated their time series record in 2025?
With the recent calibration of data, on average, the severity level of annual blooms since 2013 has been lowered. For example, the formerly classified “severe” bloom in 2021 will now be classified as a “moderately severe” bloom. 2011 and 2015 are still considered “very severe” blooms (i.e., greater than 7…
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Has the goal for what we are trying to achieve in Lake Erie changed?
No. NOAA’s update to their time series record does not change the definition of a “severe” or “mild” bloom, nor does it change the goal to achieve only a “mild” or no harmful algal bloom on an annual basis. More specifically, in the 2012 Great Lakes Water Quality Agreement, Canada…
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Does the change provide any new insight on progress being made in Lake Erie?
NOAA’s updated time series shows a decline in bloom severity since 2019. This is consistent with the Annex 4 Adaptive Management Task Team’s assessment that lake conditions appear to no longer be getting worse. See: 5-Year Binational Adaptive Management Evaluation for Lake Erie (2017-2021): Measuring the Ecosystem Response to Nutrients…