Science & Technology
-
Section 20: Radionuclides
There is no HRS score pathway for radionuclides, but there are special considerations that come into play within each of the four pathways when radioactive substances are present.
-
Report: EPA’s Initial Implementation of CARES Act Section 3610
Report #20-N-0202, June 29, 2020. The OAS created and provided detailed guidance to EPA contracting personnel and contractors related to reimbursements under Section 3610 of the CARES Act.
-
Report: EPA's Fiscal Years 2018 and 2017 Hazardous Waste Electronic Manifest System Fund Financial Statements
Report #20-F-0244, August 10, 2020. We found the fund's financial statements to be fairly presented and free of material misstatement.
-
Report: EPA Needs to Strengthen Controls Over Required Documentation and Tracking of Intergovernmental Personnel Act Assignments
Report #20-P-0245, August 10, 2020. The Agency lacks controls to verify that documents are submitted and maintained as required, as well as a reliable system to track employees on IPA assignment.
-
Report: Fiscal Years 2019 and 2018 Financial Statements for the Pesticides Reregistration and Expedited Processing Fund
Report #20-F-0308, September 8, 2020. Federal law requires agency heads to establish and maintain a records program that includes safeguards against the removal or loss of agency records.
-
Revised Interpretation of the Clean Water Act Tribal Provision
Information related to Revised Interpretation of the Clean Water Act Tribal Provision
-
Data Reports for Retrospective Case Study in Killdeer, North Dakota
Data from sampling events conducted in Killdeer, North Dakota as part of EPA's Study of the Potential Impacts of Hydraulic Fracturing for Oil and Gas on Drinking Water Resources, retrospective case study
-
Data Reports for Retrospective Case Study in Southwestern Pennsylvania
This page includes sampling results from rounds conducted in Southwestern Pennsylvania for EPA's Study of the Potential Impacts of Hydraulic Fracturing on Drinking Water Resources
-
Data Reports for Retrospective Case Study in Wise County, Texas
Data reports from sampling events collected in wise county, texas as part of EPA's Study of the Potential Impacts of Hydraulic Fracturing for Oil and Gas on Drinking Water Resources, retrospective case study.
-
Guide to retrospective case study data reports
Step by step guide to data reports
-
The Verification of a Method for Detecting and Quantifying Diethylene Glycol, Triethylene Glycol, Tetraethylene Glycol, 2-Butoxyethanol and 2-Methoxyethanol in Ground and Surface Waters
peer reviewed EPA Report on Verification of Glycols Method
-
EPA Published Research Related to the Hydraulic Fracturing Study
A list of publications that will support the draft assessment report on the potential impacts of hydraulic fracturing on drinking water resources. These publications have undergone peer review through the journal where the paper has been published.
-
Retrospective Case Study in the Raton Basin, Colorado
Study site locations in Las Animas and Huerfano Counties were selected in response to ongoing complaints about changes in appearance, odor, and taste associated with drinking water in domestic wells.
-
Retrospective Case Study in Northeastern Pennsylvania
The EPA chose Bradford County, and parts of neighboring Susquehanna County, as a retrospective case study location because of the extensive hydraulic fracturing activities occurring there, coincident with the large number of homeowner complaints.
-
Retrospective Case Study in Southwestern Pennsylvania
The location of this case study was chosen in response to homeowner complaints about changes to water quality and water quantity in Washington County.
-
Review of State and Industry Spill Data: Characterization of Hydraulic Fracturing-Related Spills
EPA analyzed spill data from states and industry to better understand what is known about spills associated with hydraulic fracturing
-
Report: Retrospective Case Study in Killdeer, North Dakota (PDF)
PDF of Killdeer, North Dakota retrospective case study report
-
Report: Retrospective Case Study in the Raton Basin, Colorado (PDF)
PDF of retrospective case study in the raton basin, Colorado, EPA report
-
Review of State and Industry Spill Data: Characterization of Hydraulic Fracturing-Related Spills (PDF)
The EPA analyzed spill data from states and industry to better understand what is known about spills associated with hydraulic fracturing.
-
Report: Retrospective Case Study in Northeastern Pennsylvania (PDF)
PDF of EPA report Retrospective Case Study in Northeastern Pennsylvania