Sturgis, City of — NPDES permit SD0020052: limits, due date and EPA's record

NPDES permit SD0020052 · Major POTW · administratively continued, expires 2025-12-31 · EPA's file as of 2026-09-19

This permit expired on 2025-12-31 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

Reporting

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

Limits in force (184)

Outfall	Parameter	Statistic	Limit	Months
002	Temperature, water deg. centigrade	30DA AVG	report only	all year
002	Temperature, water deg. centigrade	DAILY MX	report only	all year
002	Flow rate	30DA AVG	report only	all year
002	Flow rate	DAILY MX	report only	all year
002	Conductivity	30DA AVG	report only	all year
002	Conductivity	DAILY MX	report only	all year
002	BOD, 5-day, 20 deg. C	30DA AVG	<= 30 mg/L	all year
002	BOD, 5-day, 20 deg. C	MX 7D AV	<= 45 mg/L	all year
002	pH	MO MIN	>= 6 SU	all year
002	pH	MO MAX	<= 9 SU	all year
002	Solids, total suspended	30DA AVG	<= 110 mg/L	all year
002	Solids, total suspended	MX 7D AV	<= 165 mg/L	all year
002	Nitrogen, ammonia total [as N]	30DA AVG	report only	all year
002	Nitrogen, ammonia total [as N]	DAILY MX	report only	all year
002	Nitrogen, nitrite total [as N]	30DA AVG	report only	all year
002	Nitrogen, nitrite total [as N]	DAILY MX	report only	all year
002	Nitrogen, nitrate total [as N]	30DA AVG	report only	all year
002	Nitrogen, nitrate total [as N]	DAILY MX	report only	all year
002	Nitrogen, Kjeldahl, total [as N]	30DA AVG	report only	all year
002	Nitrogen, Kjeldahl, total [as N]	DAILY MX	report only	all year
002	Phosphorus, total [as P]	30DA AVG	report only	all year
002	Phosphorus, total [as P]	DAILY MX	report only	all year
002	Sodium adsorption ratio	DAILY MX	<= 10 Ratio	all year
002	Chloride [as Cl]	30DA AVG	report only	all year
002	Chloride [as Cl]	DAILY MX	report only	all year
002	Sulfate, total [as SO4]	30DA AVG	report only	all year
002	Sulfate, total [as SO4]	DAILY MX	report only	all year
002	E. coli, colony forming units [CFU]	30DA GEO	report only	all year
002	E. coli, colony forming units [CFU]	30DA GEO	report only	May, Jun, Jul, Aug, Sep
002	E. coli, colony forming units [CFU]	DAILY MX	report only	all year
002	E. coli, colony forming units [CFU]	DAILY MX	report only	May, Jun, Jul, Aug, Sep
002	Total Amount Land Applied	MO TOTAL	report only	all year
002	Duration of Land Application	MO TOTAL	report only	all year
002	Solids, total dissolved	30DA AVG	report only	all year
002	Solids, total dissolved	DAILY MX	report only	all year
003	Temperature, water deg. centigrade	30DA AVG	report only	all year
003	Temperature, water deg. centigrade	DAILY MX	report only	all year
003	Flow rate	30DA AVG	report only	all year
003	Flow rate	DAILY MX	report only	all year
003	Conductivity	30DA AVG	report only	all year
003	Conductivity	DAILY MX	report only	all year
003	BOD, 5-day, 20 deg. C	30DA AVG	report only	all year
003	BOD, 5-day, 20 deg. C	MX 7D AV	report only	all year
003	pH	MO MIN	report only	all year
003	pH	MO MAX	report only	all year
003	Solids, total suspended	30DA AVG	report only	all year
003	Solids, total suspended	MX 7D AV	report only	all year
003	Nitrogen, ammonia total [as N]	30DA AVG	report only	all year
003	Nitrogen, ammonia total [as N]	DAILY MX	report only	all year
003	Nitrogen, nitrite total [as N]	30DA AVG	report only	all year
003	Nitrogen, nitrite total [as N]	DAILY MX	report only	all year
003	Nitrogen, nitrate total [as N]	30DA AVG	report only	all year
003	Nitrogen, nitrate total [as N]	DAILY MX	report only	all year
003	Nitrogen, Kjeldahl, total [as N]	30DA AVG	report only	all year
003	Nitrogen, Kjeldahl, total [as N]	DAILY MX	report only	all year
003	Phosphorus, total [as P]	30DA AVG	report only	all year
003	Phosphorus, total [as P]	DAILY MX	report only	all year
003	Sodium adsorption ratio	DAILY MX	report only	all year
003	Chloride [as Cl]	30DA AVG	report only	all year
003	Chloride [as Cl]	DAILY MX	report only	all year
003	Sulfate, total [as SO4]	30DA AVG	report only	all year
003	Sulfate, total [as SO4]	DAILY MX	report only	all year
003	E. coli, colony forming units [CFU]	30DA GEO	report only	all year
003	E. coli, colony forming units [CFU]	DAILY MX	report only	all year
003	Total Amount Land Applied	MO TOTAL	report only	all year
003	Duration of Land Application	MO TOTAL	report only	all year
003	Solids, total dissolved	30DA AVG	report only	all year
003	Solids, total dissolved	DAILY MX	report only	all year
005	Temperature, water deg. centigrade	30DA AVG	report only	all year
005	Temperature, water deg. centigrade	DAILY MX	report only	all year
005	Flow rate	30DA AVG	report only	all year
005	Flow rate	DAILY MX	report only	all year
005	Conductivity	30DA AVG	report only	all year
005	Conductivity	DAILY MX	report only	all year
005	Oxygen, dissolved [DO]	DAILY MN	>= 6 mg/L	all year
005	BOD, 5-day, 20 deg. C	30DA AVG	<= 10 mg/L	all year
005	BOD, 5-day, 20 deg. C	DAILY MX	<= 17.5 mg/L	all year
005	BOD, 5-day, 20 deg. C	30DA AVG	report only	all year
005	pH	DAILY MN	>= 6.5 SU	all year
005	pH	DAILY MX	<= 9 SU	all year
005	Alkalinity, total [as CaCO3]	30DA AVG	report only	all year
005	Alkalinity, total [as CaCO3]	DAILY MX	report only	all year
005	Solids, total suspended	30DA AVG	<= 10 mg/L	all year
005	Solids, total suspended	DAILY MX	<= 17.5 mg/L	all year
005	Solids, total suspended	30DA AVG	report only	all year
005	Oil and grease, hexane extr method	DAILY MX	<= 10 mg/L	all year
005	Oil and grease, hexane extr method	DAILY MX	<= 10 mg/L	all year
005	Nitrogen, total [as N]	30DA AVG	report only	all year
005	Nitrogen, ammonia total [as N]	30DA AVG	<= 3.3 mg/L	Jan
005	Nitrogen, ammonia total [as N]	30DA AVG	<= 3.3 mg/L	Feb
005	Nitrogen, ammonia total [as N]	30DA AVG	<= 3.5 mg/L	Mar
005	Nitrogen, ammonia total [as N]	30DA AVG	<= 3.5 mg/L	Apr
005	Nitrogen, ammonia total [as N]	30DA AVG	<= 3.8 mg/L	May
005	Nitrogen, ammonia total [as N]	30DA AVG	<= 2.9 mg/L	Jun
005	Nitrogen, ammonia total [as N]	30DA AVG	<= 2.3 mg/L	Jul
005	Nitrogen, ammonia total [as N]	30DA AVG	<= 2.2 mg/L	Aug
005	Nitrogen, ammonia total [as N]	30DA AVG	<= 2.8 mg/L	Sep
005	Nitrogen, ammonia total [as N]	30DA AVG	<= 2.9 mg/L	Oct
005	Nitrogen, ammonia total [as N]	30DA AVG	<= 3.3 mg/L	Nov
005	Nitrogen, ammonia total [as N]	30DA AVG	<= 3.3 mg/L	Dec
005	Nitrogen, ammonia total [as N]	DAILY MX	<= 6.9 mg/L	Jan
005	Nitrogen, ammonia total [as N]	DAILY MX	<= 6.8 mg/L	Feb
005	Nitrogen, ammonia total [as N]	DAILY MX	<= 7.5 mg/L	Mar
005	Nitrogen, ammonia total [as N]	DAILY MX	<= 8.3 mg/L	Apr
005	Nitrogen, ammonia total [as N]	DAILY MX	<= 9 mg/L	May
005	Nitrogen, ammonia total [as N]	DAILY MX	<= 8.1 mg/L	Jun
005	Nitrogen, ammonia total [as N]	DAILY MX	< 8 mg/L	Jul
005	Nitrogen, ammonia total [as N]	DAILY MX	< 7.4 mg/L	Aug
005	Nitrogen, ammonia total [as N]	DAILY MX	< 8 mg/L	Sep
005	Nitrogen, ammonia total [as N]	DAILY MX	<= 6.7 mg/L	Oct
005	Nitrogen, ammonia total [as N]	DAILY MX	<= 7.9 mg/L	Nov
005	Nitrogen, ammonia total [as N]	DAILY MX	<= 7.3 mg/L	Dec
005	Nitrogen, nitrate total [as N]	30DA AVG	report only	all year
005	Nitrogen, nitrate total [as N]	DAILY MX	report only	all year
005	Phosphorus, total [as P]	30DA AVG	report only	all year
005	Cyanide, weak acid, dissociable	DAILY MX	report only	all year
005	Cyanide, weak acid, dissociable	DAILY MX	report only	all year
005	Cyanide, total [as CN]	DAILY MX	report only	all year
005	Cyanide, total [as CN]	DAILY MX	report only	all year
005	Hardness, total [as CaCO3]	DAILY MX	report only	all year
005	Hardness, total [as CaCO3]	DAILY MX	report only	all year
005	Arsenic, total recoverable	DAILY MX	report only	all year
005	Arsenic, total recoverable	DAILY MX	report only	all year
005	Selenium, total recoverable	DAILY MX	report only	all year
005	Selenium, total recoverable	DAILY MX	report only	all year
005	Thallium, total recoverable	DAILY MX	report only	all year
005	Thallium, total recoverable	DAILY MX	report only	all year
005	Beryllium, total recoverable [as Be]	DAILY MX	report only	all year
005	Beryllium, total recoverable [as Be]	DAILY MX	report only	all year
005	Nickel, total recoverable	DAILY MX	report only	all year
005	Nickel, total recoverable	DAILY MX	report only	all year
005	Zinc, total recoverable	DAILY MX	report only	all year
005	Zinc, total recoverable	DAILY MX	report only	all year
005	Aluminum, total recoverable	DAILY MX	report only	all year
005	Aluminum, total recoverable	DAILY MX	report only	all year
005	Cadmium, total recoverable	DAILY MX	report only	all year
005	Cadmium, total recoverable	DAILY MX	report only	all year
005	Chromium, total recoverable	DAILY MX	report only	all year
005	Chromium, total recoverable	DAILY MX	report only	all year
005	Copper, total recoverable	DAILY MX	report only	all year
005	Copper, total recoverable	DAILY MX	report only	all year
005	Molybdenum, total recoverable	DAILY MX	report only	all year
005	Molybdenum, total recoverable	DAILY MX	report only	all year
005	Antimony, total recoverable	DAILY MX	report only	all year
005	Antimony, total recoverable	DAILY MX	report only	all year
005	Phenols	DAILY MX	report only	all year
005	Phenols	DAILY MX	report only	all year
005	E. coli, colony forming units [CFU]	30DA GEO	<= 630 #/100mL	May, Jun, Jul, Aug, Sep
005	E. coli, colony forming units [CFU]	DAILY MX	<= 1178 #/100mL	May, Jun, Jul, Aug, Sep
005	Toxicity [acute], Ceriodaphnia dubia	DAILY MX	< 1 tox acute	all year
005	Toxicity [acute], Ceriodaphnia dubia	DAILY MX	< 1 tox acute	all year
005	Toxicity [chronic], Ceriodaphnia dubia	DAILY MX	<= 1.3 tox chronic	Jan, Feb, Mar, Apr, May, Jun, Jul, Sep, Oct, Nov, Dec
005	Toxicity [chronic], Ceriodaphnia dubia	DAILY MX	<= 1.3 tox chronic	Jan, Feb, Mar, Apr, May, Jun, Jul, Sep, Oct, Nov, Dec
005	Toxicity [chronic], Ceriodaphnia dubia	DAILY MX	< 1.1 tox chronic	Aug
005	Toxicity [chronic], Ceriodaphnia dubia	DAILY MX	< 1.1 tox chronic	Aug
005	Toxicity [acute], Pimephales promelas [Fathead Minnow]	DAILY MX	< 1 tox acute	all year
005	Toxicity [acute], Pimephales promelas [Fathead Minnow]	DAILY MX	< 1 tox acute	all year
005	Toxicity [chronic], Pimephales promelas [Fathead Minnow]	DAILY MX	< 1.3 tox chronic	Jan, Feb, Mar, Apr, May, Jun, Jul, Sep, Oct, Nov, Dec
005	Toxicity [chronic], Pimephales promelas [Fathead Minnow]	DAILY MX	< 1.3 tox chronic	Jan, Feb, Mar, Apr, May, Jun, Jul, Sep, Oct, Nov, Dec
005	Toxicity [chronic], Pimephales promelas [Fathead Minnow]	DAILY MX	< 1.1 tox chronic	Aug
005	Toxicity [chronic], Pimephales promelas [Fathead Minnow]	DAILY MX	< 1.1 tox chronic	Aug
005	BOD, carbonaceous [5 day, 20 C]	30DA AVG	report only	all year
005	BOD, carbonaceous [5 day, 20 C]	DAILY MX	report only	all year
005	BOD, 5-day, percent removal	MO AV MN	>= 85 %	all year
005	Solids, suspended percent removal	MO AV MN	>= 85 %	all year
005	Oil and grease visual	DAILY MX	<= 0 abst=0;prst=1	all year
BBC	Temperature, water deg. centigrade	VALUE	report only	all year
BBC	Temperature, water deg. centigrade	VALUE	report only	all year
BBC	Streamflow	VALUE	report only	all year
BBC	Streamflow	VALUE	report only	all year
BBC	Oxygen, dissolved [DO]	VALUE	report only	all year
BBC	Oxygen, dissolved [DO]	VALUE	report only	all year
BBC	BOD, 5-day, 20 deg. C	VALUE	report only	all year
BBC	BOD, 5-day, 20 deg. C	VALUE	report only	all year
BBC	pH	VALUE	report only	all year
BBC	pH	VALUE	report only	all year
BBC	Solids, total suspended	VALUE	report only	all year
BBC	Solids, total suspended	VALUE	report only	all year
BBC	Nitrogen, ammonia total [as N]	VALUE	report only	all year
BBC	Nitrogen, ammonia total [as N]	VALUE	report only	all year
BBC	Nitrogen, nitrate total [as N]	VALUE	report only	all year
BBC	Nitrogen, nitrate total [as N]	VALUE	report only	all year
BBC	E. coli, colony forming units [CFU]	VALUE	report only	all year
BBC	E. coli, colony forming units [CFU]	VALUE	report only	all year