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Holdenville PWA

Sewage treatment plant, Holdenville, Oklahoma. NPDES permit OK0028428, in force until Nov 30, 2026. Last 12 months: over a limit 101 times (last August 2026), 14 required values missing, 1 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (14 values)
Renewal application due
Jun 3, 2026 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
94 values over a limit, 14 required values missing, 7 of 12 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

All 101 values over a limit
Period endingParameterReportedLimitOver by
October 2025BOD, carbonaceous [5 day, 20 C], monthly average36 mg/L≤ 10 mg/L260%
October 2025BOD, carbonaceous [5 day, 20 C], monthly average98 lb/d≤ 66.7 lb/d47%
October 2025BOD, carbonaceous [5 day, 20 C], weekly average42 mg/L≤ 15 mg/L180%
October 2025Nitrogen, ammonia total [as N], monthly average29.2 mg/L≤ 2 mg/L1360%
October 2025Nitrogen, ammonia total [as N], monthly average78 lb/d≤ 13.3 lb/d486%
October 2025Nitrogen, ammonia total [as N], weekly average32.9 mg/L≤ 3 mg/L997%
October 2025Solids, total suspended, monthly average123 lb/d≤ 100 lb/d23%
October 2025Solids, total suspended, monthly average42 mg/L≤ 15 mg/L180%
October 2025Solids, total suspended, weekly average55 mg/L≤ 22.5 mg/L144%
November 2025BOD, carbonaceous [5 day, 20 C], monthly average132 lb/d≤ 100 lb/d32%
November 2025BOD, carbonaceous [5 day, 20 C], weekly average43 mg/L≤ 22.5 mg/L91%
November 2025Nitrogen, ammonia total [as N], monthly average141 lb/d≤ 53.4 lb/d164%
November 2025Nitrogen, ammonia total [as N], monthly average20.2 mg/L≤ 8 mg/L153%
November 2025Nitrogen, ammonia total [as N], weekly average28.5 mg/L≤ 12 mg/L138%
November 2025Solids, total suspended, monthly average335 lb/d≤ 200 lb/d68%
November 2025Solids, total suspended, monthly average56 mg/L≤ 30 mg/L87%
November 2025Solids, total suspended, weekly average61 mg/L≤ 45 mg/L36%
December 2025BOD, carbonaceous [5 day, 20 C], monthly average31 mg/L≤ 15 mg/L107%
December 2025BOD, carbonaceous [5 day, 20 C], weekly average43.9 mg/L≤ 22.5 mg/L95%
December 2025Nitrogen, ammonia total [as N], monthly average29.2 mg/L≤ 8 mg/L265%
December 2025Nitrogen, ammonia total [as N], monthly average57 lb/d≤ 53.4 lb/d7%
December 2025Nitrogen, ammonia total [as N], weekly average30 mg/L≤ 12 mg/L150%
December 2025Solids, total suspended, monthly average45.2 mg/L≤ 30 mg/L51%
December 2025Solids, total suspended, weekly average58 mg/L≤ 45 mg/L29%
January 2026BOD, carbonaceous [5 day, 20 C], monthly average203 lb/d≤ 100 lb/d103%
January 2026BOD, carbonaceous [5 day, 20 C], monthly average43.5 mg/L≤ 15 mg/L190%
January 2026BOD, carbonaceous [5 day, 20 C], weekly average51.4 mg/L≤ 22.5 mg/L128%
January 2026Nitrogen, ammonia total [as N], monthly average115 lb/d≤ 53.4 lb/d115%
January 2026Nitrogen, ammonia total [as N], monthly average33 mg/L≤ 8 mg/L313%
January 2026Nitrogen, ammonia total [as N], weekly average78 mg/L≤ 12 mg/L550%
January 2026Solids, total suspended, monthly average218 lb/d≤ 200 lb/d9%
January 2026Solids, total suspended, monthly average46.2 mg/L≤ 30 mg/L54%
January 2026Solids, total suspended, weekly average60 mg/L≤ 45 mg/L33%
January 2026pH, maximum9.1 SU≤ 9 SU—
February 2026BOD, carbonaceous [5 day, 20 C], monthly average405 lb/d≤ 100 lb/d305%
February 2026BOD, carbonaceous [5 day, 20 C], monthly average82 mg/L≤ 15 mg/L447%
February 2026BOD, carbonaceous [5 day, 20 C], weekly average119 mg/L≤ 22.5 mg/L429%
February 2026Nitrogen, ammonia total [as N], monthly average136 lb/d≤ 53.4 lb/d155%
February 2026Nitrogen, ammonia total [as N], monthly average25 mg/L≤ 8 mg/L213%
February 2026Nitrogen, ammonia total [as N], weekly average26.1 mg/L≤ 12 mg/L118%
February 2026Solids, total suspended, monthly average398 lb/d≤ 200 lb/d99%
February 2026Solids, total suspended, monthly average68.9 mg/L≤ 30 mg/L130%
February 2026Solids, total suspended, weekly average76.7 mg/L≤ 45 mg/L70%
March 2026BOD, carbonaceous [5 day, 20 C], monthly average190 lb/d≤ 100 lb/d90%
March 2026BOD, carbonaceous [5 day, 20 C], monthly average190 lb/d≤ 100 lb/d90%
March 2026BOD, carbonaceous [5 day, 20 C], monthly average42.3 mg/L≤ 15 mg/L182%
March 2026BOD, carbonaceous [5 day, 20 C], monthly average42.3 mg/L≤ 15 mg/L182%
March 2026BOD, carbonaceous [5 day, 20 C], weekly average80.1 mg/L≤ 22.5 mg/L256%
March 2026BOD, carbonaceous [5 day, 20 C], weekly average80.1 mg/L≤ 22.5 mg/L256%
March 2026Nitrogen, ammonia total [as N], monthly average30.7 mg/L≤ 8 mg/L284%
March 2026Nitrogen, ammonia total [as N], monthly average30.7 mg/L≤ 8 mg/L284%
March 2026Nitrogen, ammonia total [as N], monthly average76.3 lb/d≤ 53.4 lb/d43%
March 2026Nitrogen, ammonia total [as N], monthly average76.3 lb/d≤ 53.4 lb/d43%
March 2026Nitrogen, ammonia total [as N], weekly average43.1 mg/L≤ 12 mg/L259%
March 2026Nitrogen, ammonia total [as N], weekly average43.1 mg/L≤ 12 mg/L259%
March 2026Solids, total suspended, monthly average42.5 mg/L≤ 30 mg/L42%
March 2026Solids, total suspended, monthly average42.5 mg/L≤ 30 mg/L42%
March 2026Solids, total suspended, weekly average60 mg/L≤ 45 mg/L33%
March 2026Solids, total suspended, weekly average60 mg/L≤ 45 mg/L33%
March 2026pH, maximum9.3 SU≤ 9 SU—
April 2026BOD, carbonaceous [5 day, 20 C], monthly average126 lb/d≤ 66.7 lb/d89%
April 2026BOD, carbonaceous [5 day, 20 C], monthly average29.7 mg/L≤ 10 mg/L197%
April 2026BOD, carbonaceous [5 day, 20 C], weekly average40.1 mg/L≤ 15 mg/L167%
April 2026Nitrogen, ammonia total [as N], monthly average12.8 mg/L≤ 2 mg/L540%
April 2026Nitrogen, ammonia total [as N], monthly average53.6 lb/d≤ 13.3 lb/d303%
April 2026Nitrogen, ammonia total [as N], weekly average15.9 mg/L≤ 3 mg/L430%
April 2026Solids, total suspended, monthly average162 lb/d≤ 100 lb/d62%
April 2026Solids, total suspended, monthly average48.4 mg/L≤ 15 mg/L223%
April 2026Solids, total suspended, weekly average104 mg/L≤ 22.5 mg/L362%
May 2026BOD, carbonaceous [5 day, 20 C], monthly average30 mg/L≤ 10 mg/L200%
May 2026BOD, carbonaceous [5 day, 20 C], monthly average95 lb/d≤ 66.7 lb/d42%
May 2026BOD, carbonaceous [5 day, 20 C], weekly average41.7 mg/L≤ 15 mg/L178%
May 2026Nitrogen, ammonia total [as N], monthly average21 mg/L≤ 2 mg/L950%
May 2026Nitrogen, ammonia total [as N], monthly average77 lb/d≤ 13.3 lb/d479%
May 2026Nitrogen, ammonia total [as N], weekly average24.9 mg/L≤ 3 mg/L730%
May 2026Solids, total suspended, monthly average200 lb/d≤ 100 lb/d100%
May 2026Solids, total suspended, monthly average62.2 mg/L≤ 15 mg/L315%
May 2026Solids, total suspended, weekly average113 mg/L≤ 22.5 mg/L402%
June 2026BOD, carbonaceous [5 day, 20 C], monthly average24.9 mg/L≤ 10 mg/L149%
June 2026BOD, carbonaceous [5 day, 20 C], monthly average76.7 lb/d≤ 66.7 lb/d15%
June 2026BOD, carbonaceous [5 day, 20 C], weekly average35 mg/L≤ 15 mg/L133%
June 2026Nitrogen, ammonia total [as N], monthly average25.2 mg/L≤ 2 mg/L1160%
June 2026Nitrogen, ammonia total [as N], monthly average68.7 lb/d≤ 13.3 lb/d417%
June 2026Nitrogen, ammonia total [as N], weekly average31.1 mg/L≤ 3 mg/L937%
June 2026Solids, total suspended, monthly average31.6 mg/L≤ 15 mg/L111%
June 2026Solids, total suspended, weekly average43.3 mg/L≤ 22.5 mg/L92%
July 2026BOD, carbonaceous [5 day, 20 C], monthly average29 mg/L≤ 10 mg/L190%
July 2026BOD, carbonaceous [5 day, 20 C], monthly average73 lb/d≤ 66.7 lb/d9%
July 2026BOD, carbonaceous [5 day, 20 C], weekly average37 mg/L≤ 15 mg/L147%
July 2026Nitrogen, ammonia total [as N], monthly average31 mg/L≤ 2 mg/L1450%
July 2026Nitrogen, ammonia total [as N], monthly average81 lb/d≤ 13.3 lb/d509%
July 2026Nitrogen, ammonia total [as N], weekly average34 mg/L≤ 3 mg/L1033%
July 2026Solids, total suspended, monthly average30 mg/L≤ 15 mg/L100%
July 2026Solids, total suspended, weekly average31 mg/L≤ 22.5 mg/L38%
August 2026BOD, carbonaceous [5 day, 20 C], monthly average29.5 mg/L≤ 10 mg/L195%
August 2026BOD, carbonaceous [5 day, 20 C], weekly average31.2 mg/L≤ 15 mg/L108%
August 2026Nitrogen, ammonia total [as N], monthly average33.1 mg/L≤ 2 mg/L1555%
August 2026Nitrogen, ammonia total [as N], monthly average48.6 lb/d≤ 13.3 lb/d265%
August 2026Nitrogen, ammonia total [as N], weekly average34.8 mg/L≤ 3 mg/L1060%
August 2026Solids, total suspended, monthly average48 mg/L≤ 15 mg/L220%
August 2026Solids, total suspended, weekly average52 mg/L≤ 22.5 mg/L131%

Limits in force (23)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]minimum≥ 5 mg/Lall year
pHminimum≥ 6.5 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 15 mg/LApr–Oct
Solids, total suspendedmonthly average≤ 30 mg/LJan, Feb, Mar, Nov, Dec
Solids, total suspendedweekly average≤ 22.5 mg/LApr–Oct
Solids, total suspendedweekly average≤ 45 mg/LJan, Feb, Mar, Nov, Dec
Solids, total suspendedmonthly average≤ 100 lb/dApr–Oct
Solids, total suspendedmonthly average≤ 200 lb/dJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 2 mg/LApr–Oct
Nitrogen, ammonia total [as N]monthly average≤ 8 mg/LJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]weekly average≤ 3 mg/LApr–Oct
Nitrogen, ammonia total [as N]weekly average≤ 12 mg/LJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 13.3 lb/dApr–Oct
Nitrogen, ammonia total [as N]monthly average≤ 53.4 lb/dJan, Feb, Mar, Nov, Dec
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 15 mg/LJan, Feb, Mar, Nov, Dec
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/LApr–Oct
BOD, carbonaceous [5 day, 20 C]weekly average≤ 22.5 mg/LJan, Feb, Mar, Nov, Dec
BOD, carbonaceous [5 day, 20 C]weekly average≤ 15 mg/LApr–Oct
BOD, carbonaceous [5 day, 20 C]monthly average≤ 100 lb/dJan, Feb, Mar, Nov, Dec
BOD, carbonaceous [5 day, 20 C]monthly average≤ 66.7 lb/dApr–Oct

How strict are these limits?

Cited limits by parameter: Oklahoma's rules and the federal ones.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/OK0028428 · MCP: https://passage-data.com/mcp