Science & Technology
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Risk Evaluation for 4,4'-(1-Methylethylidene)bis[2, 6-dibromophenol] (TBBPA)
EPA designated 4,4'-(1-methylethylidene)bis[2, 6-dibromophenol] (TBBPA) as a high priority chemical in December 2019 and the chemical is currently undergoing risk evaluation.
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Risk Evaluation for 1,3,4,6,7,8-Hexahydro-4,6,6,7,8,8-hexamethylcyclopenta [g]-2-benzopyran (HHCB)
EPA designated 1,3,4,6,7,8-Hexahydro-4,6,6,7,8,8-hexamethylcyclopenta [g]-2-benzopyran (HHCB) as a high priority chemical in December 2019 and the chemical is currently undergoing risk evaluation.
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Hackensack River Expanded Site Inspection Report
This page houses the Hackensack River Expanded Site Inspection Report and all accompanying documents.
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Tonawanda Coke EPA ERT Air Sampling Report
Scientific, Engineering, Response and Analytical Services (SERAS) contract personnel provided assistance to the Environmental Protection Agency/Environmental Response Team (EPA/ERT) and EPA Region 2 by performing air monitoring and sampling
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Technical Support Project for Cleaning Up Contaminated Sites- Issue Papers
TSP Issue Papers page
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Documents about Measurement Competency Under Assistance Agreements
These documents discuss the EPA's policy requiring organizations generating or using environmental data under certain Agency-funded assistance agreements.
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RSIG-Related Downloadable Data Files
Download fused air quality surfaces input and output files created using EPA's Downscaling Tool and the Community Multiscale Air Quality (CMAQ) model.
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RSIG3D Release History
The Release Notes page summarizes new or changed features/data for each RSIG public release.
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Documents about Measurement Competency Under Acquisition Agreements
These document convey EPA policy requiring that organizations generating environmental data under Agency-funded acquisitions submit documentation of their competency, which may include participation in applicable certification and/or accreditation programs
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Measurement Competency Documents
Read the 2004 memorandum requiring all laboratories operated by EPA to maintain a documented quality system
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Vehicle Emissions Inspection and Maintenance (I/M): Information for State and Local I/M Agencies
This page provides information on warranty coverage and a memorandum for exemption from tampering for enforcement purposes under the U.S. EPA's vehicle inspection and maintenance program.
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EPA Releases Initial Regulatory Flexibility Analysis on Proposed PFAS Reporting Rule for Public Comment
Announcing the release of the IRFA for the TSCA 8a7 rule on PFAS
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Risk Assessment and Modeling - PM Risk Analyses
Risk characterization as a description of the nature and magnitude of human or ecological risk and the attendant uncertainties.
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Risk Assessment for Carcinogenic Effects
Risk Assessment for Carcinogens
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JS Testing - SAM 2022 Biotoxin Methods Query Results
Selected Analytical Methods
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LAND AND SEA RESTORATION. National Contingency Plan Product Bulletin
Technical product bulletin: this bioremediation agent (nutrient additive) for oil spill cleanups can be used on water, soil, or hard surfaces. It will not damage cured asphalt if used as an absorbent for spills. Apply at 1 part to 3 parts hydrocarbon.
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Method Validation and Peer Review Policies and Guidelines
This page contains several documents of methods validation and peer review policy and guidelines followed by USEPA and created by Forum on Environmental Measurement (FEM).
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JD-2000™. National Contingency Plan Product Bulletin
Technical product bulletin: this dispersant used in oil spill cleanups is free of phosphates, aromatic chlorinated solvents, branched ethoxylated alcohols, and hydrotreated distillates. Timely application even at low rates can counter "mousse" forming.
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JD-109. National Contingency Plan Product Bulletin
Technical product bulletin: this dispersant used in oil spill cleanups is best applied by aerial spraying or by workboats with spray booms. Timely treatment, even at low application rates, can counter the "mousse" forming effect.
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HYDRO-BOND™. National Contingency Plan Product Bulletin
Technical product bulletin: this miscellaneous oil spill control agent – solidifier is best used in contained systems such as barriers, socks, mats, blankets, etc.