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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

45 rows where docket_id = "EPA-HQ-OW-2002-0028" sorted by posted_date descending

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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posted_date ▲ posted_year posted_month comment_start_date comment_end_date last_modified fr_doc_num open_for_comment withdrawn object_id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-OW-2002-0028-0050 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 Method 245.2 (Automated Cold Vapor Technique) [W-98-15-I-26] Supporting & Related Material Fact/Data Sheet 2026-04-27T04:00:00Z 2026 4     2026-04-27T22:33:49Z   0 0 09000064b8e588db
EPA-HQ-OW-2002-0028-0036 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 Letter from William Telliard to Dr. Lian Liang, Cebam Analytical, responding to 11/16/95 letter providing comments on Method 1631 [W-98-15-I-3] Supporting & Related Material Letter 2026-04-27T04:00:00Z 2026 4     2026-04-27T22:33:47Z   0 0 09000064b8e587a2
EPA-HQ-OW-2002-0028-0057 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 Determination of Volatile Mercury Species at the Picogram Level by Low-Temperature Gas Chromatography with Cold Vapour Atomic Fluorescence Detection [W-98-15-I-29] Supporting & Related Material Publication - Copyrighted Materials 2026-04-27T04:00:00Z 2026 4     2026-04-27T22:33:51Z   0 0 09000064b8e588e2
EPA-HQ-OW-2002-0028-0074 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 Principles of Environmental Analysis [W-98-15-III-C-12] Supporting & Related Material Publication - Copyrighted Materials 2026-04-27T04:00:00Z 2026 4     2026-04-27T22:33:54Z   0 0 09000064b8e58d2e
EPA-HQ-OW-2002-0028-0077 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 Use of Statistics to Develop and Evaluate Analytical Methods (AOAC Guidelines) [W-98-15-III-B-16] Supporting & Related Material Publication - Copyrighted Materials 2026-04-27T04:00:00Z 2026 4     2026-04-27T22:33:54Z   0 0 09000064b8e58d31
EPA-HQ-OW-2002-0028-0041 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 Response from William Telliard to Colin Davies, Brooks Rand, Ltd., regarding proposed changes to Method 1631 [W-98-15-I-10] Supporting & Related Material Letter 2026-04-27T04:00:00Z 2026 4     2026-04-27T22:33:48Z   0 0 09000064b8e588d1
EPA-HQ-OW-2002-0028-0059 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 Trace Metal Cleanroom [W-98-15-I-16] Supporting & Related Material Report 2026-04-27T04:00:00Z 2026 4     2026-04-27T22:33:51Z   0 0 09000064b8e588e4
EPA-HQ-OW-2002-0028-0063 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 Settlement Agreement [W-98-15-IV-B-1] Supporting & Related Material Agreement, Contract 2026-04-27T04:00:00Z 2026 4     2026-04-27T22:33:52Z   0 0 09000064b8e58d23
EPA-HQ-OW-2002-0028-0071 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 National Primary Drinking Water Regulations; Synthetic Organic Chemicals and Inorganic Chemicals; Final Rule [W-98-15-III-A-12] Supporting & Related Material Publication - Previous/Related FR Notice 2026-04-27T04:00:00Z 2026 4     2026-04-27T22:33:53Z   0 0 09000064b8e58d2b
EPA-HQ-OW-2002-0028-0054 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 Method 245.1 Determination of Mercury in Water by Cold Vapor Atomic Absorption Spectrometry [W-98-15-I-31] Supporting & Related Material Procedure 2026-04-27T04:00:00Z 2026 4     2026-04-27T22:33:50Z   0 0 09000064b8e588df
EPA-HQ-OW-2002-0028-0075 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 Detailed Responses to Comments on EPA Method 1631 [W-98-15-III-F-1] Supporting & Related Material Comment Response 2026-04-27T04:00:00Z 2026 4     2026-04-27T22:33:54Z   0 0 09000064b8e58d2f
EPA-HQ-OW-2002-0028-0049 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 Letter from Lian Liang, Cebam Analytical, (11/16/95) to William Telliard providing comments and attachments on draft Method 1631 [W-98-15-I-5] Supporting & Related Material Publication - Copyrighted Materials 2026-04-27T04:00:00Z 2026 4     2026-04-27T22:33:49Z   0 0 09000064b8e588da
EPA-HQ-OW-2002-0028-0051 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 Inquiry from Brooks Rand, LTD., regarding proposed changes to Method 1631 [W-98-15-I-9] Supporting & Related Material Letter 2026-04-27T04:00:00Z 2026 4     2026-04-27T22:33:49Z   0 0 09000064b8e588dc
EPA-HQ-OW-2002-0028-0061 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 Memorandum from William Wheeler, Director, AMS: Data Files Used to Estimate Small Entity Revenues with attachments (U.S. State and Local Government Finances by Level of Government; 1995,1996 and Bureau of Census Firm Pilot) [W-98-15-III-E-5] Supporting & Related Material Memorandum 2026-04-27T04:00:00Z 2026 4     2026-04-27T22:33:51Z   0 0 09000064b8e58d21
EPA-HQ-OW-2002-0028-0060 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 Results of the EPA Method 1631 Interlaboratory Validation Study [W-98-15-I-39] Supporting & Related Material Report 2026-04-27T04:00:00Z 2026 4     2026-04-27T22:33:51Z   0 0 09000064b8e588e5
EPA-HQ-OW-2002-0028-0073 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 Letter to William Snee, Aluminum Company of America, from Robert Perciasepe with 2 enclosures (Comment on “An Alternative Minimum Level Definition for Analytical Quantification” and related correspondence; Technical and Policy Evaluation of the IQE) [W-98-15-III-D-2] Supporting & Related Material Letter 2026-04-27T04:00:00Z 2026 4     2026-04-27T22:33:53Z   0 0 09000064b8e58d2d
EPA-HQ-OW-2002-0028-0042 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 Briefing Materials presented at PittCon 1994 re: mercury and low-level metals sampling [W-98-15-I-2] Supporting & Related Material Report 2026-04-27T04:00:00Z 2026 4     2026-04-27T22:33:48Z   0 0 09000064b8e588d2
EPA-HQ-OW-2002-0028-0076 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 Environmental Management Guide for Small Laboratories [W-98-15-III-B-7] Supporting & Related Material Publication - USEPA 2026-04-27T04:00:00Z 2026 4     2026-04-27T22:33:54Z   0 0 09000064b8e58d30
EPA-HQ-OW-2002-0028-0066 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 Mercury in Wastewater: Discharges to the Waters of the State (the Maine Report) [W-98-15-III-B-2] Supporting & Related Material Report 2026-04-27T04:00:00Z 2026 4     2026-04-27T22:33:52Z   0 0 09000064b8e58d26
EPA-HQ-OW-2002-0028-0046 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 Guidance on Establishing Trace Metal Clean Rooms in Existing Facilities [W-98-15-I-15] Supporting & Related Material Publication - USEPA 2026-04-27T04:00:00Z 2026 4     2026-04-27T22:33:48Z   0 0 09000064b8e588d6
EPA-HQ-OW-2002-0028-0070 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 Results of Method 1631 Application to Effluent Matrices [W-98-15-II-B-2] Supporting & Related Material Report 2026-04-27T04:00:00Z 2026 4     2026-04-27T22:33:53Z   0 0 09000064b8e58d2a
EPA-HQ-OW-2002-0028-0037 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 Inquiry from Dr. P.B. Stockwell regarding use of "Merlin Plus" Atomic Fluorescence detector as an option in Method 1631 [W-98-15-I-6] Supporting & Related Material Letter 2026-04-27T04:00:00Z 2026 4     2026-04-27T22:33:47Z   0 0 09000064b8e588cd
EPA-HQ-OW-2002-0028-0048 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 Guidance on the Documentation and Evaluation of Trace Metals Data Collected for Clean Water Act Compliance Monitoring [W-98-15-I-18] Supporting & Related Material Publication - USEPA 2026-04-27T04:00:00Z 2026 4     2026-04-27T22:33:49Z   0 0 09000064b8e588d9
EPA-HQ-OW-2002-0028-0043 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 EPA Method 1631, Revision D: Mercury in Water by Oxidation, Purge and Trap, and Cold Vapor Atomic Fluorescence Spectrometry [W-01-05-V-B-1] Supporting & Related Material Publication - USEPA 2026-04-27T04:00:00Z 2026 4     2026-04-27T22:33:48Z   0 0 09000064b8e588d3
EPA-HQ-OW-2002-0028-0045 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 Letter from William Telliard to Dr. Carl Watras, State of Wisconsin, re: WI DNR research on measurement and effects of mercury and mercury species on the freshwater aquatic environment [W-98-15-I-4] Supporting & Related Material Letter 2026-04-27T04:00:00Z 2026 4     2026-04-27T22:33:48Z   0 0 09000064b8e588d5
EPA-HQ-OW-2002-0028-0044 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 Record of phone conversation with Colin Davies, Brooks Rand, Ltd., requesting modification of Mehod 1631 to allow a single gold trap for analyses rather than the dual trap currently specified in the method [W-98-15-I-7] Supporting & Related Material Meeting Materials 2026-04-27T04:00:00Z 2026 4     2026-04-27T22:33:48Z   0 0 09000064b8e588d4
EPA-HQ-OW-2002-0028-0052 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 Mercury, Total recoverable, atomic absorption spectrometric, flameless (1-3462-78) [W-98-15-I-25] Supporting & Related Material Publication 2026-04-27T04:00:00Z 2026 4     2026-04-27T22:33:50Z   0 0 09000064b8e588dd
EPA-HQ-OW-2002-0028-0058 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 Memorandum from Sheila Frace, Director, EAD [W-98-15-III-E-3] Supporting & Related Material Memorandum 2026-04-27T04:00:00Z 2026 4     2026-04-27T22:33:51Z   0 0 09000064b8e588e3
EPA-HQ-OW-2002-0028-0055 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 Office of Water Quality Technical Memorandum 94.09 (1/28/94) transmitting "A Protocol for the Collection and Processing of Surface Water Samples for Subsequent Determination of Trace Elements, Nutrients, and Major Ions in Filtered Waters [W-98-15-I-13] Supporting & Related Material Memorandum 2026-04-27T04:00:00Z 2026 4     2026-04-27T22:33:50Z   0 0 09000064b8e588e0
EPA-HQ-OW-2002-0028-0062 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Proposed Rule [W-98-15-I-48] Supporting & Related Material Publication - Previous/Related FR Notice 2026-04-27T04:00:00Z 2026 4     2026-04-27T22:33:51Z   0 0 09000064b8e58d22
EPA-HQ-OW-2002-0028-0065 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 Environmental Laboratories: Moving Toward the 21st Century [W-98-15-III-C-4] Supporting & Related Material Publication - Copyrighted Materials 2026-04-27T04:00:00Z 2026 4     2026-04-27T22:33:52Z   0 0 09000064b8e58d25
EPA-HQ-OW-2002-0028-0072 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 Some Statistical and Conceptual Issues in the Detection of Low-Level Environmental Pollutants [W-98-15-III-C-10] Supporting & Related Material Publication - Copyrighted Materials 2026-04-27T04:00:00Z 2026 4     2026-04-27T22:33:53Z   0 0 09000064b8e58d2c
EPA-HQ-OW-2002-0028-0039 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 NBS Clean Laboratories for Trace Element Analysis [W-98-15-I-12] Supporting & Related Material Publication - Copyrighted Materials 2026-04-27T04:00:00Z 2026 4     2026-04-27T22:33:47Z   0 0 09000064b8e588cf
EPA-HQ-OW-2002-0028-0056 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 Performance-based Measurement System; Notice of Intent [W-98-15-I-24] Supporting & Related Material Publication - Previous/Related FR Notice 2026-04-27T04:00:00Z 2026 4     2026-04-27T22:33:50Z   0 0 09000064b8e588e1
EPA-HQ-OW-2002-0028-0069 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 Mercury Pollution Integration and Synthes, Carl J. Watras [W-98-15-I-43] Supporting & Related Material Publication - Copyrighted Materials 2026-04-27T04:00:00Z 2026 4     2026-04-27T22:33:53Z   0 0 09000064b8e58d29
EPA-HQ-OW-2002-0028-0064 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 GAO, Congress Receipt of Delivery [W-98-15-III-J-1] Supporting & Related Material   2026-04-27T04:00:00Z 2026 4     2026-04-27T22:33:52Z   0 0 09000064b8e58d24
EPA-HQ-OW-2002-0028-0040 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 Response from William Telliard to Dr. P.B. Stockwell regarding use of the "Merlin Plus" atomic fluorescence mercury detector [W-98-15-I-11] Supporting & Related Material Letter 2026-04-27T04:00:00Z 2026 4     2026-04-27T22:33:47Z   0 0 09000064b8e588d0
EPA-HQ-OW-2002-0028-0047 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 Results of the EPA Method 1631 Validation Study (single laboratory [W-98-15-I-38] Supporting & Related Material Study 2026-04-27T04:00:00Z 2026 4     2026-04-27T22:33:49Z   0 0 09000064b8e588d8
EPA-HQ-OW-2002-0028-0068 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 Water Quality Guidance for the Great Lakes System: Supplementary Information Document (SID) [W-98-15-III-B-14-] Supporting & Related Material Publication - USEPA 2026-04-27T04:00:00Z 2026 4     2026-04-27T22:33:52Z   0 0 09000064b8e58d28
EPA-HQ-OW-2002-0028-0038 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 Response to Colin Davies, Brooks Rand, regarding use of single-stage amalgamation procedure for mercury analysis via Method 1631 [W-98-15-I-8] Supporting & Related Material Letter 2026-04-27T04:00:00Z 2026 4     2026-04-27T22:33:47Z   0 0 09000064b8e588ce
EPA-HQ-OW-2002-0028-0053 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 Determination of Mercury in Seawater at Sub-Nanogram per Liter Levels [W-98-15-I-28] Supporting & Related Material Publication - Copyrighted Materials 2026-04-27T04:00:00Z 2026 4     2026-04-27T22:33:50Z   0 0 09000064b8e588de
EPA-HQ-OW-2002-0028-0067 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 Eighteenth Annual EPA Conference [W-98-15-III-C-9] Supporting & Related Material Meeting Materials 2026-04-27T04:00:00Z 2026 4     2026-04-27T22:33:52Z   0 0 09000064b8e58d27
EPA-HQ-OW-2002-0028-0027 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 Water Quality Standards; Establishment of Numeric Criteria for Priority Toxic Pollutants; States' Compliance Revision of Metals Criteria; Interim final rule, notice of data availability and request for comments [W-98-15-III-A-9] Rule Interim Final Rule 2025-06-12T04:00:00Z 2025 6 2025-06-12T04:00:00Z   2025-06-12T21:04:17Z 95-10148 0 0 09000064b8e00a16
EPA-HQ-OW-2002-0028-0029 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 Legacy Index for Docket W-98-15 (Sections I - IV) and W-01-05 (Sections V - VI) Supporting & Related Material Index 2025-06-12T04:00:00Z 2025 6     2025-06-12T21:17:19Z   0 0 09000064b8e00a18
EPA-HQ-OW-2002-0028-0028 EPA Guidelines Establishing Test Procedures for the Analysis of Pollutants; Measurement of Mercury in Water; Revisions to EPA Method 1631 EPA-HQ-OW-2002-0028 Guidelines Establishing Test Procedures for the Analysis of Pollutants; EPA Method 1613; Final Rule [W-98-15-III-A-6] Rule Final Rule 2025-06-12T04:00:00Z 2025 6 2025-06-12T04:00:00Z   2025-06-12T21:10:28Z 97-23841 0 0 09000064b8e00a17

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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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