ST GEORGE CITY CORPORATION — NPDES permit UT0024686: limits, due date and EPA's record

NPDES permit UT0024686 · Major POTW · effective, expires 2031-01-31 · 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: BOD, 5-day, 20 deg. C (2), E. coli (1), Chlorine, total residual (1).

Reporting

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

Limits in force (207)

Outfall	Parameter	Statistic	Limit	Months
001	Temperature, water deg. centigrade	MX WK AV	report only	all year
001	Oxygen, dissolved [DO]	DAILY MN	>= 6 mg/L	all year
001	BOD, 5-day, 20 deg. C	MX MO AV	<= 10.6 mg/L	all year
001	BOD, 5-day, 20 deg. C	MX WK AV	<= 35 mg/L	all year
001	BOD, 5-day, 20 deg. C	MX MO AV	report only	all year
001	BOD, 5-day, 20 deg. C	MX WK AV	report only	all year
001	pH	DAILY MN	>= 6.5 SU	all year
001	pH	DAILY MX	<= 9 SU	all year
001	Solids, total suspended	MX MO AV	<= 25 mg/L	all year
001	Solids, total suspended	MX WK AV	<= 35 mg/L	all year
001	Solids, total suspended	MX MO AV	report only	all year
001	Solids, total suspended	MX WK AV	report only	all year
001	Oil & Grease	DAILY MX	<= 10 mg/L	all year
001	Nitrogen, ammonia total [as N]	MX MO AV	<= 3.8 mg/L	Jan, Feb, Mar
001	Nitrogen, ammonia total [as N]	MX MO AV	<= 3.1 mg/L	Apr, May, Jun
001	Nitrogen, ammonia total [as N]	MX MO AV	<= 2 mg/L	Jul, Aug, Sep
001	Nitrogen, ammonia total [as N]	MX MO AV	<= 2.8 mg/L	Oct, Nov, Dec
001	Nitrogen, ammonia total [as N]	DAILY MX	<= 17.8 mg/L	Jan, Feb, Mar
001	Nitrogen, ammonia total [as N]	DAILY MX	<= 14.1 mg/L	Apr, May, Jun
001	Nitrogen, ammonia total [as N]	DAILY MX	<= 11.7 mg/L	Jul, Aug, Sep
001	Nitrogen, ammonia total [as N]	DAILY MX	<= 12.9 mg/L	Oct, Nov, Dec
001	Nitrogen, Kjeldahl, total [as N]	MX MO AV	report only	all year
001	Nitrogen, Kjeldahl, total [as N]	MX MO AV	report only	all year
001	Phosphorus, total [as P]	ANNL AVG	<= 1 mg/L	all year
001	Phosphorus, total [as P]	MX MO AV	report only	all year
001	Phosphorus, total [as P]	ANNL AVG	<= 2.5 mg/L	Jan, Feb, Mar, Apr, May, Jun, Dec
001	Phosphorus, total [as P]	MX MO AV	report only	all year
001	Cyanide, total [as CN]	QB	report only	all year
001	Cyanide, total [as CN]	QB	report only	all year
001	Arsenic, total [as As]	QB	report only	all year
001	Arsenic, total [as As]	QB	report only	all year
001	Boron, total [as B]	QB	report only	all year
001	Cadmium, total [as Cd]	QB	report only	all year
001	Cadmium, total [as Cd]	QB	report only	all year
001	Chromium, total [as Cr]	QB	report only	all year
001	Chromium, total [as Cr]	QB	report only	all year
001	Copper, total [as Cu]	QB	report only	all year
001	Copper, total [as Cu]	QB	report only	all year
001	Lead, total [as Pb]	QB	report only	all year
001	Lead, total [as Pb]	QB	report only	all year
001	Molybdenum, total [as Mo]	QB	report only	all year
001	Molybdenum, total [as Mo]	QB	report only	all year
001	Nickel, total [as Ni]	QB	report only	all year
001	Nickel, total [as Ni]	QB	report only	all year
001	Silver, total [as Ag]	QB	report only	all year
001	Silver, total [as Ag]	QB	report only	all year
001	Zinc, total [as Zn]	QB	report only	all year
001	Zinc, total [as Zn]	QB	report only	all year
001	Selenium, total [as Se]	QB	report only	all year
001	Selenium, total [as Se]	QB	report only	all year
001	Phosphorus, ortho	MX MO AV	report only	all year
001	E. coli	MX MO AV	<= 126 #/100mL	all year
001	E. coli	MX WK AV	<= 157 #/100mL	all year
001	Solids, total dissolved	DAILY MX	<= 2360 mg/L	all year
001	Solids, total dissolved	MX MO AV	report only	all year
001	Nitrogen, nitrate total [as NO3]	MX MO AV	report only	all year
001	Nitrogen, nitrite total [as NO2]	MX MO AV	report only	all year
001	Mercury, total [as Hg]	QB	report only	all year
001	Mercury, total [as Hg]	QB	report only	all year
001	Organics, total toxic [TTO]	VALUE	report only	all year
001	Organics, total toxic [TTO]	VALUE	report only	all year
001	BOD, 5-day, percent removal	MINIMUM	>= 85 %	all year
001	Solids, suspended percent removal	MINIMUM	>= 85 %	all year
001	Flow, total	MX MO AV	report only	all year
001	Flow, total	MX MO AV	report only	all year
001	Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia	DAILY MX	<= 0 pass=0;fail=1	Apr, May, Jun, Oct, Nov, Dec
001	Pass/Fail Static Renewal 7Day Chronic Pimephales promelas	DAILY MX	<= 0 pass=0;fail=1	Jan, Feb, Mar, Jul, Aug, Sep
001R	Turbidity	MX DA AV	<= 2 NTU	all year
001R	Turbidity	MAXIMUM	<= 5 NTU	all year
001R	BOD, 5-day, 20 deg. C	MX MO AV	<= 10 mg/L	all year
001R	pH	MINIMUM	>= 6 SU	all year
001R	pH	MAXIMUM	<= 9 SU	all year
001R	Chlorine, total residual	MINIMUM	>= 1 mg/L	all year
001R	E. coli	7C	<= 0 #/100mL	all year
001R	E. coli	MAXIMUM	<= 9 #/100mL	all year
001R	Flow, total	MX MO AV	report only	all year
002	Temperature, water deg. centigrade	MX WK AV	report only	all year
002	Oxygen, dissolved [DO]	DAILY MN	>= 6 mg/L	all year
002	BOD, 5-day, 20 deg. C	MX MO AV	<= 20 mg/L	all year
002	BOD, 5-day, 20 deg. C	MX WK AV	<= 35 mg/L	all year
002	BOD, 5-day, 20 deg. C	MX MO AV	report only	all year
002	BOD, 5-day, 20 deg. C	MX WK AV	report only	all year
002	pH	DAILY MN	>= 6.5 SU	all year
002	pH	DAILY MX	<= 9 SU	all year
002	Solids, total suspended	MX MO AV	<= 25 mg/L	all year
002	Solids, total suspended	MX WK AV	<= 35 mg/L	all year
002	Solids, total suspended	MX MO AV	report only	all year
002	Solids, total suspended	MX WK AV	report only	all year
002	Oil & Grease	DAILY MX	<= 10 mg/L	all year
002	Nitrogen, ammonia total [as N]	MX MO AV	<= 2.9 mg/L	Apr, May, Jun
002	Nitrogen, ammonia total [as N]	MX MO AV	<= 2.7 mg/L	Jul, Aug, Sep
002	Nitrogen, ammonia total [as N]	MX MO AV	<= 2.9 mg/L	Oct, Nov, Dec
002	Nitrogen, ammonia total [as N]	MX MO AV	<= 2 mg/L	Jan, Feb, Mar
002	Nitrogen, ammonia total [as N]	DAILY MX	<= 11.8 mg/L	Apr, May, Jun
002	Nitrogen, ammonia total [as N]	DAILY MX	<= 11.7 mg/L	Jul, Aug, Sep
002	Nitrogen, ammonia total [as N]	DAILY MX	<= 11.8 mg/L	Oct, Nov, Dec
002	Nitrogen, ammonia total [as N]	DAILY MX	<= 11 mg/L	Jan, Feb, Mar
002	Nitrogen, Kjeldahl, total [as N]	MX MO AV	report only	all year
002	Nitrogen, Kjeldahl, total [as N]	MX MO AV	report only	all year
002	Phosphorus, total [as P]	ANNL AVG	<= 1 mg/L	all year
002	Phosphorus, total [as P]	MX MO AV	report only	all year
002	Phosphorus, total [as P]	MX MO AV	report only	all year
002	Cyanide, total [as CN]	QB	report only	all year
002	Cyanide, total [as CN]	QB	report only	all year
002	Arsenic, total [as As]	QB	report only	all year
002	Arsenic, total [as As]	QB	report only	all year
002	Boron, total [as B]	QB	report only	all year
002	Cadmium, total [as Cd]	QB	report only	all year
002	Cadmium, total [as Cd]	QB	report only	all year
002	Chromium, total [as Cr]	QB	report only	all year
002	Chromium, total [as Cr]	QB	report only	all year
002	Copper, total [as Cu]	QB	report only	all year
002	Copper, total [as Cu]	QB	report only	all year
002	Lead, total [as Pb]	QB	report only	all year
002	Lead, total [as Pb]	QB	report only	all year
002	Molybdenum, total [as Mo]	QB	report only	all year
002	Molybdenum, total [as Mo]	QB	report only	all year
002	Nickel, total [as Ni]	QB	report only	all year
002	Nickel, total [as Ni]	QB	report only	all year
002	Silver, total [as Ag]	QB	report only	all year
002	Silver, total [as Ag]	QB	report only	all year
002	Zinc, total [as Zn]	QB	report only	all year
002	Zinc, total [as Zn]	QB	report only	all year
002	Selenium, total [as Se]	QB	report only	all year
002	Selenium, total [as Se]	QB	report only	all year
002	Phosphorus, ortho	MX MO AV	report only	all year
002	E. coli	MX MO AV	<= 126 #/100mL	all year
002	E. coli	MX WK AV	<= 157 #/100mL	all year
002	Solids, total dissolved	DAILY MX	<= 2360 mg/L	all year
002	Solids, total dissolved	MX MO AV	report only	all year
002	Nitrogen, nitrate total [as NO3]	MX MO AV	report only	all year
002	Nitrogen, nitrite total [as NO2]	MX MO AV	report only	all year
002	Mercury, total [as Hg]	QB	report only	all year
002	Mercury, total [as Hg]	QB	report only	all year
002	Organics, total toxic [TTO]	VALUE	report only	all year
002	Organics, total toxic [TTO]	VALUE	report only	all year
002	BOD, 5-day, percent removal	MINIMUM	>= 85 %	all year
002	Solids, suspended percent removal	MINIMUM	>= 85 %	all year
002	Flow, total	MX MO AV	report only	all year
002	Pass/Fail Static Renewal 48Hr Acute Ceriodaphnia dubia	DAILY MX	<= 0 pass=0;fail=1	Apr, May, Jun, Oct, Nov, Dec
002	Pass/Fail Static Renewal 48Hr Acute Pimephales promelas	DAILY MX	<= 0 pass=0;fail=1	Jan, Feb, Mar, Jul, Aug, Sep
003	Temperature, water deg. centigrade	MX WK AV	report only	all year
003	Oxygen, dissolved [DO]	DAILY MN	>= 6 mg/L	all year
003	BOD, 5-day, 20 deg. C	MX MO AV	<= 20 mg/L	all year
003	BOD, 5-day, 20 deg. C	MX WK AV	<= 35 mg/L	all year
003	BOD, 5-day, 20 deg. C	MX MO AV	report only	all year
003	BOD, 5-day, 20 deg. C	MX WK AV	report only	all year
003	pH	DAILY MN	>= 6.5 SU	all year
003	pH	DAILY MX	<= 9 SU	all year
003	Solids, total suspended	MX MO AV	<= 25 mg/L	all year
003	Solids, total suspended	MX WK AV	<= 35 mg/L	all year
003	Solids, total suspended	MX MO AV	report only	all year
003	Solids, total suspended	MX WK AV	report only	all year
003	Oil & Grease	DAILY MX	<= 10 mg/L	all year
003	Nitrogen, ammonia total [as N]	MX MO AV	<= 2.9 mg/L	Apr, May, Jun
003	Nitrogen, ammonia total [as N]	MX MO AV	<= 2.7 mg/L	Jul, Aug, Sep
003	Nitrogen, ammonia total [as N]	MX MO AV	<= 2.9 mg/L	Oct, Nov, Dec
003	Nitrogen, ammonia total [as N]	MX MO AV	<= 2 mg/L	Jan, Feb, Mar
003	Nitrogen, ammonia total [as N]	DAILY MX	<= 11.8 mg/L	Apr, May, Jun
003	Nitrogen, ammonia total [as N]	DAILY MX	<= 11.7 mg/L	Jul, Aug, Sep
003	Nitrogen, ammonia total [as N]	DAILY MX	<= 11.8 mg/L	Oct, Nov, Dec
003	Nitrogen, ammonia total [as N]	DAILY MX	<= 11 mg/L	Jan, Feb, Mar
003	Nitrogen, Kjeldahl, total [as N]	MX MO AV	report only	all year
003	Nitrogen, Kjeldahl, total [as N]	MX MO AV	report only	all year
003	Phosphorus, total [as P]	ANNL AVG	<= 1 mg/L	all year
003	Phosphorus, total [as P]	MX MO AV	report only	all year
003	Phosphorus, total [as P]	MX MO AV	report only	all year
003	Cyanide, total [as CN]	QB	report only	all year
003	Cyanide, total [as CN]	QB	report only	all year
003	Arsenic, total [as As]	QB	report only	all year
003	Arsenic, total [as As]	QB	report only	all year
003	Boron, total [as B]	QB	report only	all year
003	Cadmium, total [as Cd]	QB	report only	all year
003	Cadmium, total [as Cd]	QB	report only	all year
003	Chromium, total [as Cr]	QB	report only	all year
003	Chromium, total [as Cr]	QB	report only	all year
003	Copper, total [as Cu]	QB	report only	all year
003	Copper, total [as Cu]	QB	report only	all year
003	Lead, total [as Pb]	QB	report only	all year
003	Lead, total [as Pb]	QB	report only	all year
003	Molybdenum, total [as Mo]	QB	report only	all year
003	Molybdenum, total [as Mo]	QB	report only	all year
003	Nickel, total [as Ni]	QB	report only	all year
003	Nickel, total [as Ni]	QB	report only	all year
003	Silver, total [as Ag]	QB	report only	all year
003	Silver, total [as Ag]	QB	report only	all year
003	Zinc, total [as Zn]	QB	report only	all year
003	Zinc, total [as Zn]	QB	report only	all year
003	Selenium, total [as Se]	QB	report only	all year
003	Selenium, total [as Se]	QB	report only	all year
003	Phosphorus, ortho	MX MO AV	report only	all year
003	E. coli	MX MO AV	<= 126 #/100mL	all year
003	E. coli	MX WK AV	<= 157 #/100mL	all year
003	Solids, total dissolved	DAILY MX	<= 2360 mg/L	all year
003	Solids, total dissolved	MX MO AV	report only	all year
003	Nitrogen, nitrate total [as NO3]	MX MO AV	report only	all year
003	Nitrogen, nitrite total [as NO2]	MX MO AV	report only	all year
003	Mercury, total [as Hg]	QB	report only	all year
003	Mercury, total [as Hg]	QB	report only	all year
003	Organics, total toxic [TTO]	VALUE	report only	all year
003	Organics, total toxic [TTO]	VALUE	report only	all year
003	BOD, 5-day, percent removal	MINIMUM	>= 85 %	all year
003	Solids, suspended percent removal	MINIMUM	>= 85 %	all year
003	Flow, total	MX MO AV	report only	all year
003	Pass/Fail Static Renewal 48Hr Acute Ceriodaphnia dubia	DAILY MX	<= 0 pass=0;fail=1	Apr, May, Jun, Oct, Nov, Dec
003	Pass/Fail Static Renewal 48Hr Acute Pimephales promelas	DAILY MX	<= 0 pass=0;fail=1	Jan, Feb, Mar, Jul, Aug, Sep
SUM	Flow, total	MX MO AV	<= 25.2 MGD	all year