Steve Foster — NPDES permit MO0140961: limits, due date and EPA's record

NPDES permit MO0140961 · Minor NON-POTW · effective, expires 2030-10-31 · EPA's file as of 2026-09-19

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

Last period with anything received: 2026-06-30. Most often over: BOD, 5-day, 20 deg. C (4), Solids, total suspended (4), Oil and grease [soxhlet extr.] tot. (4).

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among MO permits in EPA's filings — check your permit).

Limits in force (20)

Outfall	Parameter	Statistic	Limit	Months
001	Oxygen, dissolved [DO]	DAILY MN	>= 5 mg/L	all year
001	Oxygen, dissolved [DO]	MO AV MN	report only	all year
001	BOD, 5-day, 20 deg. C	WKLY AVG	<= 15 mg/L	all year
001	BOD, 5-day, 20 deg. C	MO AVG	<= 10 mg/L	all year
001	pH	MINIMUM	>= 6.5 SU	all year
001	pH	MAXIMUM	<= 9 SU	all year
001	Solids, total suspended	WKLY AVG	<= 20 mg/L	all year
001	Solids, total suspended	MO AVG	<= 15 mg/L	all year
001	Oil and grease [soxhlet extr.] tot.	DAILY MX	<= 15 mg/L	all year
001	Oil and grease [soxhlet extr.] tot.	MO AVG	<= 10 mg/L	all year
001	Nitrogen, ammonia total [as N]	DAILY MX	<= 3.6 mg/L	Apr, May, Jun, Jul, Aug, Sep
001	Nitrogen, ammonia total [as N]	DAILY MX	<= 7.5 mg/L	Jan, Feb, Mar, Oct, Nov, Dec
001	Nitrogen, ammonia total [as N]	MO AVG	<= 1.4 mg/L	Apr, May, Jun, Jul, Aug, Sep
001	Nitrogen, ammonia total [as N]	MO AVG	<= 2.9 mg/L	Jan, Feb, Mar, Oct, Nov, Dec
001	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
001	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
001	Chlorine, total residual	DAILY MX	<= 17 ug/L	all year
001	Chlorine, total residual	MO AVG	<= 5 ug/L	all year
001	E. coli	DAILY MX	<= 126 #/100mL	all year
001	E. coli	MO AVG	report only	all year