Ash Creek Special Service District — NPDES permit UT0026301: limits, due date and EPA's record

NPDES permit UT0026301 · Major POTW · effective, expires 2030-11-30 · EPA's file as of 2026-09-19

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

Last period with anything received: 2026-08-31. Most often over: E. coli (2), Oxygen, dissolved [DO] (2).

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 (204)

Outfall	Parameter	Statistic	Limit	Months
001	Temperature, water deg. centigrade	MX MO AV	report only	all year
001	Oxygen, dissolved [DO]	MO AV MN	>= 5.5 mg/L	all year
001	Oxygen, dissolved [DO]	DAILY MN	>= 5 mg/L	all year
001	BOD, 5-day, 20 deg. C	MX MO AV	<= 25 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	<= 1.8 mg/L	Apr, May, Jun
001	Nitrogen, ammonia total [as N]	MX MO AV	<= 2.2 mg/L	Jan, Feb, Mar
001	Nitrogen, ammonia total [as N]	MX MO AV	<= 2.5 mg/L	Oct, Nov, Dec
001	Nitrogen, ammonia total [as N]	MX MO AV	<= 1.6 mg/L	Jul, Aug, Sep
001	Nitrogen, ammonia total [as N]	DAILY MX	<= 6.9 mg/L	Apr, May, Jun
001	Nitrogen, ammonia total [as N]	DAILY MX	<= 7.5 mg/L	Jan, Feb, Mar
001	Nitrogen, ammonia total [as N]	DAILY MX	<= 8.9 mg/L	Oct, Nov, Dec
001	Nitrogen, ammonia total [as N]	DAILY MX	<= 9 mg/L	Jul, Aug, Sep
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]	MX MO AV	report only	all year
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	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	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	Aluminum, total [as Al]	QB	report only	all year
001	Aluminum, total [as Al]	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	Phosphate, ortho [as P]	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	Phosphorus, Total	ANNL AVG	<= 1 mg/L	all year
001	Solids, total dissolved	MX MO AV	report only	all year
001	Solids, total dissolved	MX MO AV	report only	all year
001	Solids, total dissolved	MX MO AV	<= 400 mg/L	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]	ANNL TOT	report only	all year
001	Organics, total toxic [TTO]	ANNL TOT	report only	all year
001	BOD, 5-day, percent removal	MO AV MN	>= 85 %	all year
001	Solids, suspended percent removal	MO AV MN	>= 85 %	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	Temperature, water deg. centigrade	MX MO AV	report only	all year
001R	Turbidity	DAILY MX	<= 5 NTU	all year
001R	Turbidity	DAILY AV	<= 2 NTU	all year
001R	Oxygen, dissolved [DO]	MO AV MN	>= 6.5 mg/L	all year
001R	Oxygen, dissolved [DO]	DAILY MN	>= 5 mg/L	all year
001R	BOD, 5-day, 20 deg. C	MX MO AV	<= 10 mg/L	all year
001R	BOD, 5-day, 20 deg. C	MX WK AV	<= 35 mg/L	all year
001R	BOD, 5-day, 20 deg. C	MX MO AV	report only	all year
001R	BOD, 5-day, 20 deg. C	MX WK AV	report only	all year
001R	pH	DAILY MN	>= 6.5 SU	all year
001R	pH	DAILY MX	<= 9 SU	all year
001R	Solids, total suspended	MX MO AV	<= 25 mg/L	all year
001R	Solids, total suspended	MX WK AV	<= 35 mg/L	all year
001R	Solids, total suspended	MX MO AV	report only	all year
001R	Solids, total suspended	MX WK AV	report only	all year
001R	Oil & Grease	DAILY MX	<= 10 mg/L	all year
001R	Nitrogen, ammonia total [as N]	MX MO AV	<= 1.1 mg/L	Apr, May, Jun
001R	Nitrogen, ammonia total [as N]	MX MO AV	<= 1.1 mg/L	Jan, Feb, Mar
001R	Nitrogen, ammonia total [as N]	MX MO AV	<= 1.6 mg/L	Oct, Nov, Dec
001R	Nitrogen, ammonia total [as N]	MX MO AV	<= 1.3 mg/L	Jul, Aug, Sep
001R	Nitrogen, ammonia total [as N]	DAILY MX	<= 2.7 mg/L	Apr, May, Jun
001R	Nitrogen, ammonia total [as N]	DAILY MX	<= 2.2 mg/L	Jan, Feb, Mar
001R	Nitrogen, ammonia total [as N]	DAILY MX	<= 3.2 mg/L	Oct, Nov, Dec
001R	Nitrogen, ammonia total [as N]	DAILY MX	<= 3.1 mg/L	Jul, Aug, Sep
001R	Nitrogen, Kjeldahl, total [as N]	MX MO AV	report only	all year
001R	Nitrogen, Kjeldahl, total [as N]	MX MO AV	report only	all year
001R	Phosphorus, total [as P]	MX MO AV	report only	all year
001R	Phosphorus, total [as P]	MX MO AV	report only	all year
001R	Cyanide, total [as CN]	QB	report only	all year
001R	Cyanide, total [as CN]	QB	report only	all year
001R	Arsenic, total [as As]	QB	report only	all year
001R	Arsenic, total [as As]	QB	report only	all year
001R	Cadmium, total [as Cd]	QB	report only	all year
001R	Cadmium, total [as Cd]	QB	report only	all year
001R	Chromium, total [as Cr]	QB	report only	all year
001R	Chromium, total [as Cr]	QB	report only	all year
001R	Copper, total [as Cu]	QB	report only	all year
001R	Copper, total [as Cu]	QB	report only	all year
001R	Lead, total [as Pb]	QB	report only	all year
001R	Lead, total [as Pb]	QB	report only	all year
001R	Nickel, total [as Ni]	QB	report only	all year
001R	Nickel, total [as Ni]	QB	report only	all year
001R	Silver, total [as Ag]	QB	report only	all year
001R	Silver, total [as Ag]	QB	report only	all year
001R	Zinc, total [as Zn]	QB	report only	all year
001R	Zinc, total [as Zn]	QB	report only	all year
001R	Aluminum, total [as Al]	QB	report only	all year
001R	Aluminum, total [as Al]	QB	report only	all year
001R	Selenium, total [as Se]	QB	report only	all year
001R	Selenium, total [as Se]	QB	report only	all year
001R	Phosphate, ortho [as P]	MX MO AV	report only	all year
001R	Chlorine, total residual	DAILY MN	>= 1 mg/L	all year
001R	E. coli	7C	<= 0 #/100mL	all year
001R	E. coli	DAILY MX	<= 9 #/100mL	all year
001R	Phosphorus, Total	ANNL AVG	<= 1 mg/L	all year
001R	Solids, total dissolved	MX MO AV	report only	all year
001R	Solids, total dissolved	MX MO AV	report only	all year
001R	Solids, total dissolved	MX MO AV	<= 400 mg/L	all year
001R	Nitrogen, nitrate total [as NO3]	MX MO AV	report only	all year
001R	Nitrogen, nitrite total [as NO2]	MX MO AV	report only	all year
001R	Mercury, total [as Hg]	QB	report only	all year
001R	Mercury, total [as Hg]	QB	report only	all year
001R	Organics, total toxic [TTO]	ANNL TOT	report only	all year
001R	Organics, total toxic [TTO]	ANNL TOT	report only	all year
001R	BOD, 5-day, percent removal	MO AV MN	>= 85 %	all year
001R	Solids, suspended percent removal	MO AV MN	>= 85 %	all year
001R	Flow, total	MX MO AV	report only	all year
002	Temperature, water deg. centigrade	MX MO AV	report only	all year
002	Turbidity	DAILY MX	<= 5 NTU	all year
002	Turbidity	DAILY AV	<= 2 NTU	all year
002	Oxygen, dissolved [DO]	MO AV MN	>= 6.5 mg/L	all year
002	Oxygen, dissolved [DO]	DAILY MN	>= 5 mg/L	all year
002	BOD, 5-day, 20 deg. C	MX MO AV	<= 10 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	<= 1.1 mg/L	Apr, May, Jun
002	Nitrogen, ammonia total [as N]	MX MO AV	<= 1.1 mg/L	Jan, Feb, Mar
002	Nitrogen, ammonia total [as N]	MX MO AV	<= 1.6 mg/L	Oct, Nov, Dec
002	Nitrogen, ammonia total [as N]	MX MO AV	<= 1.3 mg/L	Jul, Aug, Sep
002	Nitrogen, ammonia total [as N]	DAILY MX	<= 2.7 mg/L	Apr, May, Jun
002	Nitrogen, ammonia total [as N]	DAILY MX	<= 2.2 mg/L	Jan, Feb, Mar
002	Nitrogen, ammonia total [as N]	DAILY MX	<= 3.2 mg/L	Oct, Nov, Dec
002	Nitrogen, ammonia total [as N]	DAILY MX	<= 3.1 mg/L	Jul, Aug, Sep
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]	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	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	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	Aluminum, total [as Al]	QB	report only	all year
002	Aluminum, total [as Al]	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	Phosphate, ortho [as P]	MX MO AV	report only	all year
002	Chlorine, total residual	DAILY MN	>= 1 mg/L	all year
002	E. coli	7C	<= 0 #/100mL	all year
002	E. coli	DAILY MX	<= 9 #/100mL	all year
002	Phosphorus, Total	ANNL AVG	<= 1 mg/L	all year
002	Solids, total dissolved	MX MO AV	report only	all year
002	Solids, total dissolved	MX MO AV	report only	all year
002	Solids, total dissolved	MX MO AV	<= 400 mg/L	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]	ANNL TOT	report only	all year
002	Organics, total toxic [TTO]	ANNL TOT	report only	all year
002	BOD, 5-day, percent removal	MO AV MN	>= 85 %	all year
002	Solids, suspended percent removal	MO AV MN	>= 85 %	all year
002	Flow, total	MX MO AV	report only	all year
002	Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia	DAILY MX	<= 0 pass=0;fail=1	Apr, May, Jun, Oct, Nov, Dec
002	Pass/Fail Static Renewal 7Day Chronic Pimephales promelas	DAILY MX	<= 0 pass=0;fail=1	Jan, Feb, Mar, Jul, Aug, Sep
SUM	Flow, total	MX MO AV	<= 1.5 MGD	all year
SUM	Flow, total	MX MO AV	report only	all year