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Regulatory documents from Regulations.gov including rules, proposed rules, notices, and supporting materials.

Data license: Public Domain (U.S. Government data) · Data source: Federal Register API & Regulations.gov API

15 rows where docket_id = "EPA-HQ-OLEM-2021-0285" and posted_year = 2026 sorted by posted_date descending

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document_type 2

  • Supporting & Related Material 14
  • Other 1

posted_year 1

  • 2026 · 15 ✖

agency_id 1

  • EPA 15
id agency_id docket_id title document_type subtype posted_date ▲ posted_year posted_month comment_start_date comment_end_date last_modified fr_doc_num open_for_comment withdrawn object_id
EPA-HQ-OLEM-2021-0285-0069 EPA Coronado Generating Station CCR Part B Alternate Liner Demonstration EPA-HQ-OLEM-2021-0285 SRP’s Request to Extend the Deadline to Cease Using the Coronado Generating Station Evaporation Pond Due to Grid Reliability and Resource Adequacy Concerns Supporting & Related Material Letter 2026-02-17T05:00:00Z 2026 2     2026-02-17T18:39:31Z   0 0 09000064b919ef30
EPA-HQ-OLEM-2021-0285-0068 EPA Coronado Generating Station CCR Part B Alternate Liner Demonstration EPA-HQ-OLEM-2021-0285 Memo Opening Docket for Public Access Other Memorandum to Open a Docket 2026-02-17T05:00:00Z 2026 2 2026-02-17T05:00:00Z 2026-03-10T03:59:59Z 2026-02-17T18:38:25Z   1 0 09000064b919e78e
EPA-HQ-OLEM-2021-0285-0077 EPA Coronado Generating Station CCR Part B Alternate Liner Demonstration EPA-HQ-OLEM-2021-0285 From mine to mind and mobiles – Lithium contamination and its risk management Supporting & Related Material Publication - Copyrighted Materials 2026-02-17T05:00:00Z 2026 2     2026-02-17T18:39:33Z   0 0 09000064b919f335
EPA-HQ-OLEM-2021-0285-0082 EPA Coronado Generating Station CCR Part B Alternate Liner Demonstration EPA-HQ-OLEM-2021-0285 Distribution of oxygen-18 and deuterium in river waters across the United States Supporting & Related Material Publication - Other Governmental 2026-02-17T05:00:00Z 2026 2     2026-02-17T18:39:34Z   0 0 09000064b919e83d
EPA-HQ-OLEM-2021-0285-0075 EPA Coronado Generating Station CCR Part B Alternate Liner Demonstration EPA-HQ-OLEM-2021-0285 Memorandum prepared by Rick Wilkin, USEPA, titled "Review of Geologic, Geochemical, and Hydrologic Information Summaries Prepared for the Coronado Generating Station Evaporation Pond (St. Johns, Arizona)" dated February 9, 2026 Supporting & Related Material Memorandum 2026-02-17T05:00:00Z 2026 2     2026-02-17T18:39:32Z   0 0 09000064b919f1ee
EPA-HQ-OLEM-2021-0285-0073 EPA Coronado Generating Station CCR Part B Alternate Liner Demonstration EPA-HQ-OLEM-2021-0285 Letter to Bobby Olsen, Salt River Project, from Steven Cook, USEPA, dated September 10, 2025 Supporting & Related Material Letter 2026-02-17T05:00:00Z 2026 2     2026-02-17T18:39:32Z   0 0 09000064b919efce
EPA-HQ-OLEM-2021-0285-0080 EPA Coronado Generating Station CCR Part B Alternate Liner Demonstration EPA-HQ-OLEM-2021-0285 Geohydrology and Water Chemistry of Abandoned Uranium Mines and Radiochemistry of Spoil-Material Leachate, Monument Valley and Cameron Areas, Arizona and Utah Supporting & Related Material Publication - Other Governmental 2026-02-17T05:00:00Z 2026 2     2026-02-17T18:39:33Z   0 0 09000064b919e7dc
EPA-HQ-OLEM-2021-0285-0070 EPA Coronado Generating Station CCR Part B Alternate Liner Demonstration EPA-HQ-OLEM-2021-0285 Letter to Bobby Olsen, Salt River Project, from Barry Breen, USEPA, dated March 20, 2025 Supporting & Related Material Letter 2026-02-17T05:00:00Z 2026 2     2026-02-17T18:39:31Z   0 0 09000064b919ef35
EPA-HQ-OLEM-2021-0285-0072 EPA Coronado Generating Station CCR Part B Alternate Liner Demonstration EPA-HQ-OLEM-2021-0285 Letter to Andy Crossland, USEPA, from Haley Aldrich with subject line "Supplemental Data and Information Geologic and Hydrogeologic Conditions at the Existing Evaporation Pond, Coronado Generating Station, St. Johns, Arizona" dated June 17, 2025 Supporting & Related Material Letter 2026-02-17T05:00:00Z 2026 2     2026-02-17T18:39:32Z   0 0 09000064b919ef9e
EPA-HQ-OLEM-2021-0285-0074 EPA Coronado Generating Station CCR Part B Alternate Liner Demonstration EPA-HQ-OLEM-2021-0285 Letter to Steven Cook, USEPA, from Bobby Olsen, Salt River Project, dated November 7, 2025, with attached technical memo titled "Summary of Analyses Conducted to Characterize Geologic and Hydrogeologic Conditions at the Coronado Generating Station Evaporation Pond, St. Johns, Arizona Supporting & Related Material Letter 2026-02-17T05:00:00Z 2026 2     2026-02-17T18:39:32Z   0 0 09000064b919f02a
EPA-HQ-OLEM-2021-0285-0081 EPA Coronado Generating Station CCR Part B Alternate Liner Demonstration EPA-HQ-OLEM-2021-0285 Estimating Lithium Concentrations in Groundwater Used as Drinking Water for the Conterminous United States Supporting & Related Material Publication 2026-02-17T05:00:00Z 2026 2     2026-02-17T18:39:33Z   0 0 09000064b919e7dd
EPA-HQ-OLEM-2021-0285-0076 EPA Coronado Generating Station CCR Part B Alternate Liner Demonstration EPA-HQ-OLEM-2021-0285 Geology and Ground Water in the Central Part of Apache County, Arizona Supporting & Related Material Publication - Other Governmental 2026-02-17T05:00:00Z 2026 2     2026-02-17T18:39:33Z   0 0 09000064b919f2c2
EPA-HQ-OLEM-2021-0285-0079 EPA Coronado Generating Station CCR Part B Alternate Liner Demonstration EPA-HQ-OLEM-2021-0285 Geochemical Analyses of Rock, Sediment, and Water from the Region in and Around the Tuba City Landfill, Tuba City, Arizona Supporting & Related Material Publication - Other Governmental 2026-02-17T05:00:00Z 2026 2     2026-02-17T18:39:33Z   0 0 09000064b919e79a
EPA-HQ-OLEM-2021-0285-0071 EPA Coronado Generating Station CCR Part B Alternate Liner Demonstration EPA-HQ-OLEM-2021-0285 Letter to Steven Cook, USEPA, from Bobby Olsen, Salt River Project Agricultural Improvement and Power District (SRP), dated April 25, 2025 Supporting & Related Material Letter 2026-02-17T05:00:00Z 2026 2     2026-02-17T18:39:32Z   0 0 09000064b919ef38
EPA-HQ-OLEM-2021-0285-0078 EPA Coronado Generating Station CCR Part B Alternate Liner Demonstration EPA-HQ-OLEM-2021-0285 Short high-accuracy tritium data time series for assessing groundwater mean transit times in the vadose and saturated zones of the Luxembourg Sandstone aquifer Supporting & Related Material Publication 2026-02-17T05:00:00Z 2026 2     2026-02-17T18:39:33Z   0 0 09000064b919e797

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CREATE TABLE documents (
    id TEXT PRIMARY KEY,
    agency_id TEXT,
    docket_id TEXT REFERENCES dockets(id),
    title TEXT,
    document_type TEXT,
    subtype TEXT,
    posted_date TEXT,
    posted_year INTEGER,
    posted_month INTEGER,
    comment_start_date TEXT,
    comment_end_date TEXT,
    last_modified TEXT,
    fr_doc_num TEXT,
    open_for_comment INTEGER,
    withdrawn INTEGER,
    object_id TEXT
);
CREATE INDEX idx_docs_agency ON documents(agency_id);
CREATE INDEX idx_docs_docket ON documents(docket_id);
CREATE INDEX idx_docs_date ON documents(posted_date);
CREATE INDEX idx_docs_year ON documents(posted_year);
CREATE INDEX idx_docs_type ON documents(document_type);
CREATE INDEX idx_docs_frnum ON documents(fr_doc_num);
CREATE INDEX idx_docs_comment_end ON documents(comment_end_date) WHERE comment_end_date IS NOT NULL AND withdrawn = 0;
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