City of El Dorado Springs — NPDES permit MO0040002: limits, due date and EPA's record

NPDES permit MO0040002 · Minor POTW · administratively continued, expires 2021-12-31 · EPA's file as of 2026-09-19

This permit expired on 2021-12-31 and is administratively continued: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

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

Last period with anything received: 2026-07-31. Most often over: Nitrogen, ammonia total [as N] (2).

Reporting

Reports are due about 28 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (26)

Outfall	Parameter	Statistic	Limit	Months
003	Oxygen, dissolved [DO]	DAILY MN	report only	all year
003	Oxygen, dissolved [DO]	MO AV MN	report only	all year
003	BOD, 5-day, 20 deg. C	WKLY AVG	<= 15 mg/L	all year
003	BOD, 5-day, 20 deg. C	MO AVG	<= 10 mg/L	all year
003	pH	MINIMUM	>= 6.5 SU	all year
003	pH	MAXIMUM	<= 9 SU	all year
003	Solids, total suspended	WKLY AVG	<= 20 mg/L	all year
003	Solids, total suspended	MO AVG	<= 15 mg/L	all year
003	Oil and grease [soxhlet extr.] tot.	DAILY MX	<= 15 mg/L	all year
003	Oil and grease [soxhlet extr.] tot.	MO AVG	<= 10 mg/L	all year
003	Nitrogen, total [as N]	DAILY MX	report only	all year
003	Nitrogen, total [as N]	MO AVG	report only	all year
003	Nitrogen, ammonia total [as N]	DAILY MX	<= 3.6 mg/L	Apr, May, Jun, Jul, Aug, Sep
003	Nitrogen, ammonia total [as N]	DAILY MX	<= 7.5 mg/L	Jan, Feb, Mar, Oct, Nov, Dec
003	Nitrogen, ammonia total [as N]	MO AVG	<= 1.4 mg/L	Apr, May, Jun, Jul, Aug, Sep
003	Nitrogen, ammonia total [as N]	MO AVG	<= 2.9 mg/L	Jan, Feb, Mar, Oct, Nov, Dec
003	Phosphorus, total [as P]	DAILY MX	report only	all year
003	Phosphorus, total [as P]	MO AVG	report only	all year
003	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
003	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
003	E. coli	7 DA GEO	<= 1030 #/100mL	Apr, May, Jun, Jul, Aug, Sep, Oct
003	E. coli	30DA GM	<= 206 #/100mL	Apr, May, Jun, Jul, Aug, Sep, Oct
003	Toxicity [acute], Ceriodaphnia dubia	DAILY MX	report only	all year
003	Toxicity [acute], Pimephales promelas [Fathead Minnow]	DAILY MX	report only	all year
003	BOD, 5-day, percent removal	MO AV MN	>= 85 %	all year
003	Solids, suspended percent removal	MO AV MN	>= 85 %	all year