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withdrawn,object_id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-R09-OAR-2009-0598-0215,EPA,EPA-R09-OAR-2009-0598,Assessment of Anticipated Visibility Improvements at Surrounding Class I Areas and Cost Effectiveness of Best Available Retrofit Technology: Four Corners Power Plant and Navajo Generating Station,Proposed Rule,,2009-09-30T04:00:00Z,2009,9,2009-09-30T04:00:00Z,2009-10-29T03:59:59Z,2010-04-05T18:34:10Z,E9-23633,0,0,0900006480a31aa0
EPA-R09-OAR-2009-0598-0064,EPA,EPA-R09-OAR-2009-0598,EPA Response to request for extension - Bakkan,Supporting & Related Material,,2009-09-16T04:00:00Z,2009,9,,,2009-09-16T22:31:14Z,,0,0,0900006480a24c62
EPA-R09-OAR-2009-0598-0066,EPA,EPA-R09-OAR-2009-0598,EPA Response to request for extension - Hagler,Supporting & Related Material,,2009-09-16T04:00:00Z,2009,9,,,2009-09-16T22:31:17Z,,0,0,0900006480a24c66
EPA-R09-OAR-2009-0598-0065,EPA,EPA-R09-OAR-2009-0598,EPA Response to request for extension - Sims,Supporting & Related Material,,2009-09-16T04:00:00Z,2009,9,,,2009-09-16T22:31:16Z,,0,0,0900006480a24c65
EPA-R09-OAR-2009-0598-0067,EPA,EPA-R09-OAR-2009-0598,EPA Response to request for extension - Sonntag,Supporting & Related Material,,2009-09-16T04:00:00Z,2009,9,,,2009-09-16T22:31:19Z,,0,0,0900006480a24c67
EPA-R09-OAR-2009-0598-0068,EPA,EPA-R09-OAR-2009-0598,EPA Response to request for extension - Hamer,Supporting & Related Material,,2009-09-16T04:00:00Z,2009,9,,,2009-09-16T22:31:20Z,,0,0,0900006480a24c68
EPA-R09-OAR-2009-0598-0050,EPA,EPA-R09-OAR-2009-0598,EPA Response to request for extension - Hayslip,Supporting & Related Material,,2009-09-14T04:00:00Z,2009,9,,,2009-09-14T16:05:06Z,,0,0,0900006480a225af
EPA-R09-OAR-2009-0598-0054,EPA,EPA-R09-OAR-2009-0598,EPA Response to request for extension - Yaquinto,Supporting & Related Material,,2009-09-14T04:00:00Z,2009,9,,,2009-09-14T16:05:11Z,,0,0,0900006480a225b5
EPA-R09-OAR-2009-0598-0051,EPA,EPA-R09-OAR-2009-0598,EPA Response to request for extension - Modeer,Supporting & Related Material,,2009-09-14T04:00:00Z,2009,9,,,2009-09-14T16:05:07Z,,0,0,0900006480a225b1
EPA-R09-OAR-2009-0598-0049,EPA,EPA-R09-OAR-2009-0598,EPA Response to request for extension - Fichthorn,Supporting & Related Material,,2009-09-14T04:00:00Z,2009,9,,,2009-09-14T16:05:04Z,,0,0,0900006480a224bc
EPA-R09-OAR-2009-0598-0052,EPA,EPA-R09-OAR-2009-0598,EPA Response to request for extension - Schiavoni,Supporting & Related Material,,2009-09-14T04:00:00Z,2009,9,,,2009-09-14T16:05:08Z,,0,0,0900006480a225b2
EPA-R09-OAR-2009-0598-0053,EPA,EPA-R09-OAR-2009-0598,EPA Response to request for extension - Steele,Supporting & Related Material,,2009-09-14T04:00:00Z,2009,9,,,2009-09-14T16:05:10Z,,0,0,0900006480a225b3
EPA-R09-OAR-2009-0598-0036,EPA,EPA-R09-OAR-2009-0598,Appendix A: Low NOx Charts from National Park Service Letter to EPA 7-24-09,Supporting & Related Material,,2009-09-09T04:00:00Z,2009,9,,,2009-09-09T23:56:26Z,,0,0,0900006480a1f6b2
EPA-R09-OAR-2009-0598-0035,EPA,EPA-R09-OAR-2009-0598,Advanced Notice of Proposed Rulemaking,Notice,,2009-08-28T04:00:00Z,2009,8,2009-08-28T04:00:00Z,2009-09-29T03:59:59Z,2010-01-26T14:56:17Z,E9-20826,0,0,0900006480a16ad0
EPA-R09-OAR-2009-0598-0034,EPA,EPA-R09-OAR-2009-0598,Guidance of Estimating Natural Visibility Conditions Under RHR (9/03),Supporting & Related Material,,2009-08-19T04:00:00Z,2009,8,,,2009-08-19T19:05:17Z,,0,0,09000064809fde38
EPA-R09-OAR-2009-0598-0023,EPA,EPA-R09-OAR-2009-0598,AP-42 Chapter 1.1 Coal Combustion (9/98),Supporting & Related Material,,2009-08-19T04:00:00Z,2009,8,,,2009-08-19T19:05:02Z,,0,0,09000064809fddd6
EPA-R09-OAR-2009-0598-0014,EPA,EPA-R09-OAR-2009-0598,Letter from Arizona Dept. of Env. Quality to EPA (6/12/08),Supporting & Related Material,,2009-08-19T04:00:00Z,2009,8,,,2009-08-19T19:04:49Z,,0,0,09000064809fdd62
EPA-R09-OAR-2009-0598-0022,EPA,EPA-R09-OAR-2009-0598,Letter from EPA to SRP-NGS (7/1/08),Supporting & Related Material,,2009-08-19T04:00:00Z,2009,8,,,2009-08-19T19:05:00Z,,0,0,09000064809fddd5
EPA-R09-OAR-2009-0598-0033,EPA,EPA-R09-OAR-2009-0598,IWAQM Phase 2 Summary Report and Recommendations for Modeling Long Range Transport Impacts (12/98),Supporting & Related Material,,2009-08-19T04:00:00Z,2009,8,,,2009-08-19T19:05:15Z,,0,0,09000064809fde36
EPA-R09-OAR-2009-0598-0007,EPA,EPA-R09-OAR-2009-0598,Letter from SRP to EPA re: BART Cost Information for NGS (7/29/08),Supporting & Related Material,,2009-08-19T04:00:00Z,2009,8,,,2009-08-19T19:04:33Z,,0,0,09000064809fda9b
EPA-R09-OAR-2009-0598-0013,EPA,EPA-R09-OAR-2009-0598,Conceptual Plan for Ammonia Monitoring in the Vicinity of NGS,Supporting & Related Material,,2009-08-19T04:00:00Z,2009,8,,,2009-08-19T19:04:47Z,,0,0,09000064809fdd61
EPA-R09-OAR-2009-0598-0025,EPA,EPA-R09-OAR-2009-0598,HCl and HF Emission Factors for NAPAP (10/85),Supporting & Related Material,,2009-08-19T04:00:00Z,2009,8,,,2009-08-19T19:05:04Z,,0,0,09000064809fddd8
EPA-R09-OAR-2009-0598-0019,EPA,EPA-R09-OAR-2009-0598,Letter from EPA to APS-FCPP (4/29/08),Supporting & Related Material,,2009-08-19T04:00:00Z,2009,8,,,2009-08-19T19:04:56Z,,0,0,09000064809fddd0
EPA-R09-OAR-2009-0598-0020,EPA,EPA-R09-OAR-2009-0598,Letter from EPA to SRP-NGS (4/29/08),Supporting & Related Material,,2009-08-19T04:00:00Z,2009,8,,,2009-08-19T19:04:57Z,,0,0,09000064809fddd2
EPA-R09-OAR-2009-0598-0004,EPA,EPA-R09-OAR-2009-0598,Arizona Public Service (APS) Four Corners Power Plant (FCPP) BART Analysis for NOx and PM (1/08) - Table of Contents,Supporting & Related Material,,2009-08-19T04:00:00Z,2009,8,,,2009-08-19T19:04:22Z,,0,0,09000064809fd847
EPA-R09-OAR-2009-0598-0003,EPA,EPA-R09-OAR-2009-0598,BART Analysis for SRP-NGS (11/07),Supporting & Related Material,,2009-08-19T04:00:00Z,2009,8,,,2009-08-19T19:04:21Z,,0,0,09000064809fd7f6
EPA-R09-OAR-2009-0598-0001,EPA,EPA-R09-OAR-2009-0598,Docket Description,Other,,2009-08-19T04:00:00Z,2009,8,2009-08-19T04:00:00Z,,2009-08-19T18:53:54Z,,0,0,0900006480a0da9a
EPA-R09-OAR-2009-0598-0011,EPA,EPA-R09-OAR-2009-0598,Response from APS to EPA: BART Costs (3/16/09),Supporting & Related Material,,2009-08-19T04:00:00Z,2009,8,,,2009-08-19T19:04:44Z,,0,0,09000064809fdd5e
EPA-R09-OAR-2009-0598-0021,EPA,EPA-R09-OAR-2009-0598,Letter from EPA to APS-FCPP (7/1/08),Supporting & Related Material,,2009-08-19T04:00:00Z,2009,8,,,2009-08-19T19:04:59Z,,0,0,09000064809fddd4
EPA-R09-OAR-2009-0598-0027,EPA,EPA-R09-OAR-2009-0598,"EPA Cost Control Manual Section 4, Chapter 2 - SCR (9/00)",Supporting & Related Material,,2009-08-19T04:00:00Z,2009,8,,,2009-08-19T19:05:07Z,,0,0,09000064809fde09
EPA-R09-OAR-2009-0598-0012,EPA,EPA-R09-OAR-2009-0598,"Letter from SRP to EPA following May 7, 2009 meeting (6/3/09)",Supporting & Related Material,,2009-08-19T04:00:00Z,2009,8,,,2009-08-19T19:04:46Z,,0,0,09000064809fdd60
EPA-R09-OAR-2009-0598-0016,EPA,EPA-R09-OAR-2009-0598,Letter from USDA Forest Service to EPA (3/16/09),Supporting & Related Material,,2009-08-19T04:00:00Z,2009,8,,,2009-08-19T19:04:51Z,,0,0,09000064809fdd64
EPA-R09-OAR-2009-0598-0030,EPA,EPA-R09-OAR-2009-0598,Estimating Total Sulfuric Acid Emissions from Coal-fired Power Plants Hardman et al (9/98),Supporting & Related Material,,2009-08-19T04:00:00Z,2009,8,,,2009-08-19T19:05:11Z,,0,0,09000064809fde0c
EPA-R09-OAR-2009-0598-0031,EPA,EPA-R09-OAR-2009-0598,"SO3 Mitigation - Current Utility Experience, EPRI, Technical Update (3/06)",Supporting & Related Material,,2009-08-19T04:00:00Z,2009,8,,,2009-08-19T19:05:13Z,,0,0,09000064809fde0d
EPA-R09-OAR-2009-0598-0005,EPA,EPA-R09-OAR-2009-0598,Response to Request for List of Fugitive Emission Sources: from APS to EPA (6/10/08),Supporting & Related Material,,2009-08-19T04:00:00Z,2009,8,,,2009-08-19T19:04:30Z,,0,0,09000064809fda93
EPA-R09-OAR-2009-0598-0006,EPA,EPA-R09-OAR-2009-0598,Response to Request for Information from 5/14/09 Call: from APS to EPA (5/28/08),Supporting & Related Material,,2009-08-19T04:00:00Z,2009,8,,,2009-08-19T19:04:31Z,,0,0,09000064809fda98
EPA-R09-OAR-2009-0598-0029,EPA,EPA-R09-OAR-2009-0598,"Evaluation and Mitigation of Visibility Acidic Aerosol, Final Report (9/06)",Supporting & Related Material,,2009-08-19T04:00:00Z,2009,8,,,2009-08-19T19:05:10Z,,0,0,09000064809fde0b
EPA-R09-OAR-2009-0598-0017,EPA,EPA-R09-OAR-2009-0598,Letter from National Park Service to EPA (7/24/09),Supporting & Related Material,,2009-08-19T04:00:00Z,2009,8,,,2009-08-19T19:04:53Z,,0,0,09000064809fdd65
EPA-R09-OAR-2009-0598-0024,EPA,EPA-R09-OAR-2009-0598,AP-42 Chapter 1.1 Coal Combustion - Background Document (9/98),Supporting & Related Material,,2009-08-19T04:00:00Z,2009,8,,,2009-08-19T19:05:03Z,,0,0,09000064809fddd7
EPA-R09-OAR-2009-0598-0002,EPA,EPA-R09-OAR-2009-0598,BART Modeling Protocol for Salt River Project (SRP) Navajo Generating Station (NGS) (9/07),Supporting & Related Material,,2009-08-19T04:00:00Z,2009,8,,,2009-08-19T19:04:19Z,,0,0,09000064809fd7ee
EPA-R09-OAR-2009-0598-0008,EPA,EPA-R09-OAR-2009-0598,Email from SRP to EPA re: Detailed Cost Assumptions for NGS (8/20/08),Supporting & Related Material,,2009-08-19T04:00:00Z,2009,8,,,2009-08-19T19:04:34Z,,0,0,09000064809fdbbf
EPA-R09-OAR-2009-0598-0015,EPA,EPA-R09-OAR-2009-0598,Letter from Colorado Department of Public Health and Environment to EPA (5/21/08),Supporting & Related Material,,2009-08-19T04:00:00Z,2009,8,,,2009-08-19T19:04:50Z,,0,0,09000064809fdd63
EPA-R09-OAR-2009-0598-0028,EPA,EPA-R09-OAR-2009-0598,Estimating Total Sulfuric Acid Emissions from Stationary Power Plants EPRI Update (3/08),Supporting & Related Material,,2009-08-19T04:00:00Z,2009,8,,,2009-08-19T19:05:09Z,,0,0,09000064809fde0a
EPA-R09-OAR-2009-0598-0009,EPA,EPA-R09-OAR-2009-0598,APS Supplemental BART Analysis (12/08) - Letter,Supporting & Related Material,,2009-08-19T04:00:00Z,2009,8,,,2009-08-19T19:04:36Z,,0,0,09000064809fdbc2
EPA-R09-OAR-2009-0598-0010,EPA,EPA-R09-OAR-2009-0598,NGS Revised BART Analysis and Cover Letter (12/08),Supporting & Related Material,,2009-08-19T04:00:00Z,2009,8,,,2009-08-19T19:04:42Z,,0,0,09000064809fdcf8
EPA-R09-OAR-2009-0598-0018,EPA,EPA-R09-OAR-2009-0598,Letter from Central Arizona Project to EPA (7/13/09),Supporting & Related Material,,2009-08-19T04:00:00Z,2009,8,,,2009-08-19T19:04:54Z,,0,0,09000064809fdd66
EPA-R09-OAR-2009-0598-0026,EPA,EPA-R09-OAR-2009-0598,"EPA Cost Control Manual Section 1, Chapter 2 (1/02)",Supporting & Related Material,,2009-08-19T04:00:00Z,2009,8,,,2009-08-19T19:05:06Z,,0,0,09000064809fddd9
EPA-R09-OAR-2009-0598-0032,EPA,EPA-R09-OAR-2009-0598,"White Paper - SCR control fo NOx emissions from Fossil fuel-fired Power Plants, Institute of Clearn Air Companies (5/09)",Supporting & Related Material,,2009-08-19T00:00:00Z,2009,8,,,2011-11-01T16:49:13Z,,0,1,09000064809fde10