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Water Supply — NPDES discharge permits in Oklahoma

Of the 49 permits in EPA's SIC 4941 in OK, 19 went over a limit between 2025-10-01 and 2026-09-30 (Chlorine, total residual: 9; Solids, total suspended: 8; pH: 4); 1 has no reports in EPA's file for that window. 2 are past the expiry date EPA's file holds; 15 have a renewal application overdue or due within 18 months. EPA's file of 2026-10-15.

FacilityLast 12 monthsPermit
Quartz Mountain Regional Water Authority
OK0044202 · Water Supply
Over a limit 19×: Selenium, total [as Se] (17×), Copper, total [as Cu] (2×)Expires Jul 31, 2029
Holdenville PWA
OK0045918 · Water Supply
Over a limit 16×: Solids, total suspended (15×), pH (1×)Renewal application overdue
Pittsburg Co. PWA
OK0000019 · Water Supply
Over a limit 9×: pH (9×)Expires Mar 31, 2030
Hulbert PWA
OK0100391 · Water Supply
Over a limit 7×: Chlorine, total residual (3×), pH (3×), Aluminum, dissolved [as Al] (1×)Expires Jul 31, 2030
Wewoka WTP
OK0045861 · Water Supply
Over a limit 5×: Solids, total suspended (5×)Renewal application due Nov 2, 2027
City of Muskogee
OK0045705 · Water Supply
Over a limit 4×: Chlorine, total residual (4×)Expires Mar 31, 2030
Green Leaf State Park
OK0044253 · Water Supply
Over a limit 4×: Solids, total suspended (4×)Permit past the expiry date EPA's file holds
Lindsay, City of
OK0040576 · Water Supply
Over a limit 4×: Solids, total suspended (3×), Solids, total dissolved- 180 deg. C (1×)Expires Nov 30, 2028
Poteau Valley Improvement Authority-WTP
OK0046078 · Water Supply
Over a limit 4×: Manganese, dissolved [as Mn] (3×), Chlorine, total residual (1×)Expires Jan 31, 2030
Roland Utility Authority
OK0045331 · Water Supply
Over a limit 3×: Manganese, dissolved [as Mn] (3×)Renewal application due May 4, 2027
Shawnee Municipal Authority-WTP
OK0046051 · Water Supply
Over a limit 3×: Chlorine, total residual (2×), Solids, total suspended (1×)Renewal application due Dec 3, 2027
Wagoner PWA
OK0046035 · Water Supply
Over a limit 3×: Solids, total suspended (2×), Chlorine, total residual (1×)Expires Feb 28, 2030
City of Collinsville
OK0100404 · Water Supply
Over a limit 2×: Chlorine, total residual (2×)Expires Mar 31, 2031
Kiowa WTP
OK0100366 · Water Supply
Over a limit 2×: pH (1×), Solids, total suspended (1×)Renewal application due Feb 1, 2027
Claremore, City of-WTP
OK0038466 · Water Supply
Over a limit 1×: Chlorine, total residual (1×)Expires Nov 30, 2028
McIntosh County RWD #8
OK0045977 · Water Supply
Over a limit 1×: Solids, total suspended (1×)Renewal application due Apr 3, 2027
Okmulgee WTP
OK0045888 · Water Supply
Over a limit 1×: Manganese, dissolved [as Mn] (1×)Renewal application overdue
Tulsa MUA- Mohawk WTP
OK0026166 · Water Supply
Over a limit 1×: Chlorine, total residual (1×)Expires Nov 30, 2030
Tulsa MUA-A.B. Jewell WTP
OK0040517 · Water Supply
Over a limit 1×: Chlorine, total residual (1×)Expires Feb 28, 2031
Anadarko WTP
OK0038326 · Water Supply
No value over a limitExpires Jan 31, 2030
Checotah PWA
OK0045659 · Water Supply
No value over a limitExpires Jan 31, 2031
Cherokee Co. RWD #11
OK1000012 · Water Supply
No value over a limit; 2 required values not reportedExpires Apr 30, 2030
Cherokee Co. RWD 3
OK0044431 · Water Supply
No value over a limitExpires Oct 31, 2029
Cherokee Utilities Authority
OK0045055 · Water Supply
No value over a limitExpires Jun 30, 2029
City of Cleveland
OK0100315 · Water Supply
No value over a limitExpires Dec 31, 2029
City of Skiatook
OK0045870 · Water Supply
No value over a limitExpires Mar 31, 2031
Coweta WTP
OK0045845 · Water Supply
No value over a limitExpires Apr 30, 2031
Drumright Utility Trust Authority
OK0038318 · Water Supply
No value over a limitRenewal application due Jan 2, 2028
Foss Reservoir M.C.D.
OK0041491 · major · Water Supply
No value over a limitPermit past the expiry date EPA's file holds
Gore WTP
OK0100781 · Water Supply
No value over a limitRenewal application due Jan 2, 2028
Grove Municipal Services Authority
OK0045071 · Water Supply
No value over a limitExpires Jan 31, 2031
Henryetta, City of
OK0002551 · Water Supply
No value over a limitExpires Apr 30, 2031
Lawton , City of WTP
OK0002755 · Water Supply
No value over a limitExpires Jul 31, 2030
Longtown RWSD 1
OK0100765 · Water Supply
No value over a limit; 51 required values not reportedExpires Mar 31, 2031
Mack Alford Correctional Center
OK0044113 · Water Supply
No value over a limitRenewal application overdue
Mayes Co RWD #9
OK0046086 · Water Supply
No value over a limit; 18 required values not reportedExpires Apr 30, 2030
McAlester PWA-WTP
OK0046043 · Water Supply
No value over a limitRenewal application due Dec 3, 2027
Muskogee Co. RWD # 3
OK0045535 · Water Supply
No value over a limitExpires Apr 30, 2030
Oklahoma State University
OK0044512 · Water Supply
No value over a limitExpires Oct 31, 2029
Otoe-Missouria Tribe of Indians
OK0100617 · Water Supply
No value over a limit; 17 required values not reportedRenewal application due Apr 3, 2028
Pawnee, City of -WTP
OK0002534 · Water Supply
No value over a limit; 17 required values not reportedRenewal application due Feb 2, 2028
Porum WTP
OK0045837 · Water Supply
No value over a limitExpires Sep 30, 2030
Pushmataha Co RWD 3
OK0045616 · Water Supply
No value over a limitExpires Nov 30, 2029
Red Oak Public Works Authority
OK1000021 · Water Supply
No reports in EPA's file for the windowExpires Sep 30, 2031
Rogers Co. RWD 3-Tacora WTP
OK0045349 · Water Supply
No value over a limitRenewal application due Apr 3, 2027
Rogers Co. RWD# 4-Oologah
OK0045357 · Water Supply
No value over a limit; 17 required values not reportedExpires Sep 30, 2031
Sequoyah Co Water Association
OK0046060 · Water Supply
No value over a limitRenewal application due Feb 2, 2028
Washington Co RWD 3 WTP
OK0045772 · Water Supply
No value over a limitExpires Dec 31, 2030
Wilburton PWA
OK0100358 · Water Supply
No value over a limitExpires Jan 31, 2031

The record is EPA's ICIS-NPDES file of 2026-10-15: values filed against each limit between Oct 1, 2025 and Sep 30, 2026. No reports on file may be EPA's gap, not the facility's.

For programs and AI agents: this screen as JSON at /api/v1/permits?state=OK&sic=4941, narrowed with &over_limit=true, &parameter=phosphorus or &renewal=due; or add https://passage-data.com/mcp as a remote MCP server (tool list_permits). Free, no key. llms.txt

From EPA's ECHO data, not the permit document itself: your permit is the final word. All states