Bristow, City of — NPDES permit OK0032549: limits, due date and EPA's record

NPDES permit OK0032549 · Minor POTW · effective, expires 2027-01-31 · EPA's file as of 2026-09-19

EPA's record, 2025-09-01 to 2026-08-31

Last period with anything received: 2026-07-31. Most often over: pH (6), Oxygen, dissolved [DO] (6), E. coli (1).

Reporting

Reports are due about 15 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (21)

Outfall	Parameter	Statistic	Limit	Months
001	Oxygen, dissolved [DO]	MO MIN	>= 5 mg/L	Jan, Feb, Mar, Jun, Jul, Aug, Sep, Oct, Nov, Dec
001	Oxygen, dissolved [DO]	MO MIN	>= 6 mg/L	Apr, May
001	BOD, 5-day, 20 deg. C	MO AVG	<= 30 mg/L	Jan, Feb, Mar, Nov, Dec
001	BOD, 5-day, 20 deg. C	WKLY AVG	<= 45 mg/L	Jan, Feb, Mar, Nov, Dec
001	BOD, 5-day, 20 deg. C	MO AVG	<= 236.4 lb/d	Jan, Feb, Mar, Nov, Dec
001	pH	MINIMUM	>= 6.5 SU	all year
001	pH	MAXIMUM	<= 9 SU	all year
001	Solids, total suspended	MO AVG	<= 30 mg/L	all year
001	Solids, total suspended	WKLY AVG	<= 45 mg/L	all year
001	Solids, total suspended	MO AVG	<= 236.4 lb/d	all year
001	Nitrogen, ammonia total [as N]	MO AVG	<= 6 mg/L	Apr, May, Jun, Jul, Aug, Sep, Oct
001	Nitrogen, ammonia total [as N]	WKLY AVG	<= 9 mg/L	Apr, May, Jun, Jul, Aug, Sep, Oct
001	Nitrogen, ammonia total [as N]	MO AVG	<= 47.3 lb/d	Apr, May, Jun, Jul, Aug, Sep, Oct
001	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
001	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
001	Chlorine, total residual	DAILY MX	<= .099 mg/L	all year
001	E. coli	GEO MEAN	<= 126 CFU/100mL	May, Jun, Jul, Aug, Sep
001	E. coli	DAILY MX	<= 406 CFU/100mL	May, Jun, Jul, Aug, Sep
001	BOD, carbonaceous [5 day, 20 C]	MO AVG	<= 15 mg/L	Apr, May, Jun, Jul, Aug, Sep, Oct
001	BOD, carbonaceous [5 day, 20 C]	WKLY AVG	<= 22.5 mg/L	Apr, May, Jun, Jul, Aug, Sep, Oct
001	BOD, carbonaceous [5 day, 20 C]	MO AVG	<= 118.2 lb/d	Apr, May, Jun, Jul, Aug, Sep, Oct