Passage Data · Check a report · Use it from your AI

Canadian PWA

Sewage treatment plant, Canadian, Oklahoma. NPDES permit OK0035297 expired Oct 31, 2026. Last 12 months: over a limit 9 times (last September 2026), 2 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due: About 15 days after each period: form A monthly (13 values)
Last report on file: September 2026
Oct 2024 – Sep 2025: 15 values over a limit, 0 required values missing, 2 of 12 reports late

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

Period ending	Parameter	Reported	Limit	Over by
November 2025	pH, minimum	6.18 SU	≥ 6.5 SU	—
December 2025	pH, minimum	6.1 SU	≥ 6.5 SU	—
January 2026	pH, minimum	6.21 SU	≥ 6.5 SU	—
February 2026	BOD, 5-day, 20 deg. C, monthly average	28.2 mg/L	≤ 20 mg/L	41%
February 2026	Solids, total suspended, monthly average	36 mg/L	≤ 30 mg/L	20%
March 2026	Solids, total suspended, monthly average	31.4 mg/L	≤ 30 mg/L	5%
May 2026	BOD, 5-day, 20 deg. C, monthly average	21.5 mg/L	≤ 20 mg/L	8%
August 2026	pH, minimum	6.43 SU	≥ 6.5 SU	—
September 2026	pH, minimum	6.33 SU	≥ 6.5 SU	—

Limits in force (13)

Parameter	Statistic	Limit	Months
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	daily maximum	≤ 406 MPN/100mL	May–Sep

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

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

Check this month's numbers Email me before each report is due

· Save this facility as a site · Superfund sites nearby · Your permits on one board

On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/OK0035297 · MCP: https://passage-data.com/mcp