Science & Technology
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Urban Waters and the Meramec and Big Rivers (Missouri)
The Meramec River is one of the longest waterways flowing through Missouri before emptying into the Mississippi River, and is well known for its recreational uses.
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News about the San Antonio River Basin within Bexar County (Texas)
News about the San Antonio River Basin of the Urban Waters Federal Partnership (UWFP) reconnects urban communities with their waterways by improving coordination among federal agencies and collaborating with community-led efforts.
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Greater Philadelphia Area/Delaware River Watershed River Protection and Restoration
This page provides background information about River Protection & Restoration on the Greater Philadelphia Area/Delaware River Watershed area.
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Greenhouse Gas Equivalencies Calculator
A calculator that allows users to translate abstract greenhouse gas amounts into concrete terms that are easy to understand.
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What is included in the emissions “Tiers”?
The Tiers are assigned by a Source Classification Code (SCC), which has the most detail about the emissions processes that generate the emissions. The full list of SCCs, their associated Tiers, and the SCC descriptions is available online at https://sor-scc-api.epa.gov/sccwebservices/sccsearch/.
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External Review of Bayesian Models and Model Averaging Software (2018)
Peer review comments on Bayesian model averaging (2018)
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External Review of BMDS Version 1.1b and EPA Responses (2000)
Summary and links to external peer review of BMDS 1.1 and EPA responses.
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Results Of QA/QC Testing Of EPA Benchmark Dose Software Version 1.2 (2000)
Summary of SOT presentation on QA/QC results of BMDS v1.2 (2000)
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External Peer Review of EPA's MS_COMBO Multi-tumor Model and Test Report (2011)
Summary and links to external peer reviews of MS_Combo multi-tumor model
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Peer Review Workshop on the Draft Benchmark Dose Technical Guidance (2000)
Summary and links to external peer reviews of the draft Benchmark Dose Technical Guidance
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External Review of the BMDS Exponential Continuous Models (2007)
Summary and links to external reviews of BMDS continuous exponential model
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External Review of the Concentration x Time (ten Berge) Model (2008)
Summary and links to external peer reviews of ten Berge CxT models
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Choosing Appropriate Stage of a Multistage Model for Cancer Modeling (BMDS Technical Guidance)
SOP and technical guidance for choosing Appropriate Stage of a Multistage Model for Cancer Modeling
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City of Ankeny Aquifer Storage and Recovery Well, Ankeny, Polk County, Iowa – Fact Sheet, March 2023
Proposed Decision to Issue UIC Permit
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Volume 4 - Mobile Sources
Mobile source reference material for activity data collection from the Emissions Inventory Improvement Program (EIIP). Provides complete methods for collecting key inputs to onroad mobile and nonroad mobile emissions models.
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National Drinking Water Advisory Council November 17 - 19, 2015: Public Meeting Materials
Regulatory and related updates, final recommendations of the Lead and Copper Working Group to the NDWAC, Statement of Dissent to the NDWAC, EPA's efforts to address harmful Algal Blooms in drinking water and technologies for Legionella control.
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Bioassessment and Biocriteria Program Status for Massachusetts: Streams and Wadeable Rivers
Biocriteria Program Status of Alabama
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Bioassessment and Biocriteria Program Status for Colorado: Streams and Wadeable Rivers
Biocriteria Program Status of Alabama
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Volume 7 - Data Management Procedures
Discontinued Volume 7 on data management procedures from the Emissions Inventory Improvement Program (EIIP).
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Volume 3a - Area Source Methods - Additional Documents
Nonpoint (area) source emission reference materials from the Emissions Inventory Improvement Program (EIIP). Provides nonpoint source guidance on ammonia emissions from natural landscapes, fertilized soils, and nonagricultural sources.