Bridge Creek Public School — NPDES permit OK0038458: limits, due date and EPA's record

Bridge Creek Public School

Sewage treatment plant, Blanchard, Oklahoma. NPDES permit OK0038458, in force until Aug 31, 2029. Last 12 months: over a limit 13 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due

About 15 days after each period: form A monthly (14 values)

Last report on file

August 2026

Oct 2024 – Sep 2025

5 values over a limit, 0 required values missing, 0 of 12 reports late

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

All 13 values over a limit

Period ending	Parameter	Reported	Limit	Over by
November 2025	E. coli, daily maximum	2420 MPN/100mL	≤ 2030 MPN/100mL	19%
November 2025	E. coli, geometric mean	1065.1 MPN/100mL	≤ 630 MPN/100mL	69%
December 2025	BOD, 5-day, 20 deg. C, monthly average	39.3 mg/L	≤ 20 mg/L	97%
December 2025	BOD, 5-day, 20 deg. C, weekly average	39.3 mg/L	≤ 30 mg/L	31%
December 2025	E. coli, daily maximum	2420 MPN/100mL	≤ 2030 MPN/100mL	19%
January 2026	E. coli, daily maximum	2420 MPN/100mL	≤ 2030 MPN/100mL	19%
February 2026	E. coli, daily maximum	2420 MPN/100mL	≤ 2030 MPN/100mL	19%
March 2026	E. coli, daily maximum	2420 MPN/100mL	≤ 2030 MPN/100mL	19%
May 2026	E. coli, daily maximum	2420 MPN/100mL	≤ 406 MPN/100mL	496%
May 2026	E. coli, geometric mean	139.3 MPN/100mL	≤ 126 MPN/100mL	11%
June 2026	Solids, total suspended, monthly average	113 mg/L	≤ 30 mg/L	277%
June 2026	Solids, total suspended, monthly average	8.5 lb/d	≤ 7.5 lb/d	13%
June 2026	Solids, total suspended, weekly average	113 mg/L	≤ 45 mg/L	151%

Limits in force (16)

Parameter	Statistic	Limit	Months
Oxygen, dissolved [DO]	instantaneous minimum	≥ 5 mg/L	Jun–Oct
BOD, 5-day, 20 deg. C	monthly average	≤ 20 mg/L	all year
BOD, 5-day, 20 deg. C	weekly average	≤ 30 mg/L	all year
BOD, 5-day, 20 deg. C	monthly average	≤ 5 lb/d	all year
pH	minimum	≥ 6.5 SU	all year
pH	maximum	≤ 9 SU	all year
Solids, total suspended	monthly average	≤ 30 mg/L	all year
Solids, total suspended	weekly average	≤ 45 mg/L	all year
Solids, total suspended	monthly average	≤ 7.5 lb/d	all year
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year
Chlorine, total residual	instantaneous maximum	≤ .099 mg/L	all year
E. coli	geometric mean	≤ 126 MPN/100mL	May–Sep
E. coli	geometric mean	≤ 630 MPN/100mL	Jan, Feb, Mar, Apr, Oct, Nov, Dec
E. coli	daily maximum	≤ 406 MPN/100mL	May–Sep
E. coli	daily maximum	≤ 2030 MPN/100mL	Jan, Feb, Mar, Apr, Oct, Nov, Dec

How strict are these limits?

BOD, 5-day, 20 deg. C, monthly average 20 mg/L — stricter than 60% of 158 other minor POTWs in Oklahoma; 38% have the same limit

BOD, 5-day, 20 deg. C, weekly average 30 mg/L — stricter than 60% of 152 other minor POTWs in Oklahoma; 38% have the same limit

Solids, total suspended, monthly average 30 mg/L — stricter than 44% of 176 other minor POTWs in Oklahoma; 34% have the same limit

Your permit document is the final word. As JSON: /api/v1/permits/OK0038458 · MCP: https://passage-data.com/mcp