City of Perryville — NPDES permit MO0051144: limits, due date and EPA's record

NPDES permit MO0051144 · Major POTW · effective, expires 2029-06-30 · EPA's file as of 2026-09-19

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

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 (92)

Outfall	Parameter	Statistic	Limit	Months
003	pH	MINIMUM	>= 6 SU	all year
003	pH	MAXIMUM	<= 9 SU	all year
003	Solids, total suspended	WKLY AVG	<= 21.6 mg/L	all year
003	Solids, total suspended	MO AVG	<= 14.4 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	<= 8.4 mg/L	Apr
003	Nitrogen, ammonia total [as N]	DAILY MX	<= 8.4 mg/L	Nov
003	Nitrogen, ammonia total [as N]	DAILY MX	<= 8.4 mg/L	Sep
003	Nitrogen, ammonia total [as N]	DAILY MX	<= 12.2 mg/L	Jan
003	Nitrogen, ammonia total [as N]	DAILY MX	<= 8.4 mg/L	Oct
003	Nitrogen, ammonia total [as N]	DAILY MX	<= 8.8 mg/L	Feb, Mar
003	Nitrogen, ammonia total [as N]	DAILY MX	<= 10.4 mg/L	May
003	Nitrogen, ammonia total [as N]	DAILY MX	<= 8.8 mg/L	Jun
003	Nitrogen, ammonia total [as N]	DAILY MX	<= 8.4 mg/L	Jul, Aug
003	Nitrogen, ammonia total [as N]	DAILY MX	<= 10.2 mg/L	Dec
003	Nitrogen, ammonia total [as N]	MO AVG	<= 2.2 mg/L	Apr
003	Nitrogen, ammonia total [as N]	MO AVG	<= 2.3 mg/L	Nov
003	Nitrogen, ammonia total [as N]	MO AVG	<= 1.2 mg/L	Sep
003	Nitrogen, ammonia total [as N]	MO AVG	<= 3.1 mg/L	Jan
003	Nitrogen, ammonia total [as N]	MO AVG	<= 1.5 mg/L	Oct
003	Nitrogen, ammonia total [as N]	MO AVG	<= 2.4 mg/L	Feb, Mar
003	Nitrogen, ammonia total [as N]	MO AVG	<= 1.8 mg/L	May
003	Nitrogen, ammonia total [as N]	MO AVG	<= 1.3 mg/L	Jun
003	Nitrogen, ammonia total [as N]	MO AVG	<= 1 mg/L	Jul, Aug
003	Nitrogen, ammonia total [as N]	MO AVG	<= 2.7 mg/L	Dec
003	Nitrogen, Kjeldahl, total [as N]	DAILY MX	report only	all year
003	Nitrogen, Kjeldahl, total [as N]	MO AVG	report only	all year
003	Nitrite + Nitrate total [as N]	DAILY MX	report only	all year
003	Nitrite + Nitrate total [as N]	MO AVG	report only	all year
003	Phosphorus, total [as P]	DAILY MX	report only	all year
003	Phosphorus, total [as P]	MO AVG	report only	all year
003	Cyanide, free [amenable to chlorination]	DAILY MX	<= 9 ug/L	all year
003	Cyanide, free [amenable to chlorination]	MO AVG	<= 4.5 ug/L	all year
003	Chloride [as Cl]	DAILY MX	report only	all year
003	Chloride [as Cl]	MO AVG	report only	all year
003	Sulfate, total [as SO4]	DAILY MX	report only	all year
003	Sulfate, total [as SO4]	MO AVG	report only	all year
003	Fluoride, total [as F]	DAILY MX	report only	all year
003	Fluoride, total [as F]	MO AVG	report only	all year
003	Arsenic, total recoverable	DAILY MX	report only	all year
003	Arsenic, total recoverable	MO AVG	report only	all year
003	Cobalt, total recoverable	DAILY MX	report only	all year
003	Cobalt, total recoverable	MO AVG	report only	all year
003	Iron, total recoverable	DAILY MX	report only	all year
003	Iron, total recoverable	MO AVG	report only	all year
003	Selenium, total recoverable	DAILY MX	report only	all year
003	Selenium, total recoverable	MO AVG	report only	all year
003	Thallium, total recoverable	DAILY MX	report only	all year
003	Thallium, total recoverable	MO AVG	report only	all year
003	Boron, total recoverable	DAILY MX	report only	all year
003	Boron, total recoverable	MO AVG	report only	all year
003	Zinc, total recoverable	DAILY MX	<= 250.9 ug/L	all year
003	Zinc, total recoverable	MO AVG	<= 125.1 ug/L	all year
003	Aluminum, total recoverable	DAILY MX	<= 753.7 ug/L	all year
003	Aluminum, total recoverable	MO AVG	<= 375.7 ug/L	all year
003	Lead, total recoverable	DAILY MX	<= 13.8 ug/L	all year
003	Lead, total recoverable	MO AVG	<= 6.9 ug/L	all year
003	Copper, total recoverable	DAILY MX	<= 113.7 ug/L	all year
003	Copper, total recoverable	MO AVG	<= 56.7 ug/L	all year
003	Phenol	DAILY MX	report only	all year
003	Phenol	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	p-Cresol	DAILY MX	report only	all year
003	p-Cresol	MO AVG	report only	all year
003	Benzoic acids, total	DAILY MX	report only	all year
003	Benzoic acids, total	MO AVG	report only	all year
003	.alpha.-Terpineol	DAILY MX	report only	all year
003	.alpha.-Terpineol	MO AVG	report only	all year
003	BOD, carbonaceous [5 day, 20 C]	WKLY AVG	<= 14.4 mg/L	Jun, Jul, Aug, Sep
003	BOD, carbonaceous [5 day, 20 C]	MO AVG	<= 10.8 mg/L	Jun, Jul, Aug, Sep
003	BOD, carbonaceous [5 day, 5 C]	WKLY AVG	<= 18 mg/L	Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
003	BOD, carbonaceous [5 day, 5 C]	MO AVG	<= 14.4 mg/L	Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
003	BOD, carbonaceous, percent removal	MO AV MN	>= 85 %	all year
003	Solids, suspended percent removal	MO AV MN	>= 85 %	all year
INF	Solids, total suspended	MO AVG	report only	all year
INF	Nitrogen, ammonia total [as N]	DAILY MX	report only	all year
INF	Nitrogen, ammonia total [as N]	MO AVG	report only	all year
INF	Nitrogen, Kjeldahl, total [as N]	DAILY MX	report only	all year
INF	Nitrogen, Kjeldahl, total [as N]	MO AVG	report only	all year
INF	Nitrite + Nitrate total [as N]	DAILY MX	report only	all year
INF	Nitrite + Nitrate total [as N]	MO AVG	report only	all year
INF	Phosphorus, total [as P]	DAILY MX	report only	all year
INF	Phosphorus, total [as P]	MO AVG	report only	all year
INF	BOD, carbonaceous [5 day, 20 C]	MO AVG	report only	all year