MAGNA WATER & SEWER DIST — NPDES permit UT0021440: limits, due date and EPA's record

NPDES permit UT0021440 · Major POTW · effective, expires 2029-03-31 · 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 (128)

Outfall	Parameter	Statistic	Limit	Months
001	Oxygen, dissolved [DO]	MINIMUM	>= 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	30DA AVG	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	30DA AVG	report only	all year
001	Oil & Grease	DAILY MX	<= 10 mg/L	all year
001	Nitrogen, ammonia total [as N]	MX MO AV	<= 7 mg/L	all year
001	Nitrogen, ammonia total [as N]	DAILY MX	<= 30 mg/L	all year
001	Nitrogen, Kjeldahl, total [as N]	30DA AVG	report only	all year
001	Nitrogen, Kjeldahl, total [as N]	30DA AVG	report only	all year
001	Phosphorus, total [as P]	ANNL AVG	<= 1 mg/L	all year
001	Phosphorus, total [as P]	30DA AVG	report only	all year
001	Phosphorus, total [as P]	30DA AVG	report only	all year
001	Cyanide, total [as CN]	DAILY MX	report only	all year
001	Cyanide, total [as CN]	DAILY MX	report only	all year
001	Arsenic, total [as As]	DAILY MX	report only	all year
001	Arsenic, total [as As]	DAILY MX	report only	all year
001	Cadmium, total [as Cd]	DAILY MX	report only	all year
001	Cadmium, total [as Cd]	DAILY MX	report only	all year
001	Chromium, total [as Cr]	DAILY MX	report only	all year
001	Chromium, total [as Cr]	DAILY MX	report only	all year
001	Copper, total [as Cu]	DAILY MX	report only	all year
001	Copper, total [as Cu]	DAILY MX	report only	all year
001	Lead, total [as Pb]	DAILY MX	report only	all year
001	Lead, total [as Pb]	DAILY MX	report only	all year
001	Molybdenum, total [as Mo]	DAILY MX	report only	all year
001	Molybdenum, total [as Mo]	DAILY MX	report only	all year
001	Nickel, total [as Ni]	DAILY MX	report only	all year
001	Nickel, total [as Ni]	DAILY MX	report only	all year
001	Silver, total [as Ag]	DAILY MX	report only	all year
001	Silver, total [as Ag]	DAILY MX	report only	Dec
001	Zinc, total [as Zn]	DAILY MX	report only	all year
001	Zinc, total [as Zn]	DAILY MX	report only	all year
001	Selenium, total [as Se]	DAILY MX	report only	all year
001	Selenium, total [as Se]	DAILY MX	report only	all year
001	Phosphate, ortho [as P]	30DA AVG	report only	all year
001	Flow, in conduit or thru treatment plant	MX MO AV	<= 4 MGD	all year
001	Flow, in conduit or thru treatment plant	DI	report only	all year
001	Flow, in conduit or thru treatment plant	30DA AVG	report only	all year
001	Flow, in conduit or thru treatment plant	DI	report only	all year
001	Chlorine, total residual	DAILY MX	<= 17.7 mg/L	Jul, Aug, Sep
001	Chlorine, total residual	DAILY MX	<= 2.7 mg/L	Oct, Nov, Dec
001	Chlorine, total residual	DAILY MX	<= 1.3 mg/L	Jan, Feb, Mar
001	Chlorine, total residual	DAILY MX	<= 2.7 mg/L	Apr, May, Jun
001	E. coli	MX MO AV	<= 126 #/100mL	all year
001	E. coli	MX WK AV	<= 157 #/100mL	all year
001	Nitrogen, nitrate total [as NO3]	30DA AVG	report only	all year
001	Nitrogen, nitrite total [as NO2]	30DA AVG	report only	all year
001	Mercury, total [as Hg]	DAILY MX	report only	all year
001	Mercury, total [as Hg]	DAILY MX	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	MN % RMV	>= 85 %	all year
001	Solids, suspended percent removal	MN % RMV	>= 85 %	all year
001	Pass/Fail Static Renewal 48Hr Acute Ceriodaphnia dubia	DAILY MX	<= 0 pass=0;fail=1	Jan, Feb, Mar, Jul, Aug, Sep
001	Pass/Fail Static Renewal 96Hr Acute Pimephales Promelas	DAILY MX	<= 0 pass=0;fail=1	Apr, May, Jun, Oct, Nov, Dec
001R	Flow rate	30DA AVG	report only	all year
001R	Flow rate	30DA AVG	report only	all year
001R	Turbidity	MX DA AV	<= 2 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
002	Oxygen, dissolved [DO]	DAILY MN	>= 5 mg/L	all year
002	BOD, 5-day, 20 deg. C	MX MO AV	<= 25 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	30DA AVG	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	30DA AVG	report only	all year
002	Oil & Grease	DAILY MX	<= 10 mg/L	all year
002	Nitrogen, ammonia total [as N]	MX MO AV	<= 7 mg/L	all year
002	Nitrogen, ammonia total [as N]	DAILY MX	<= 30 mg/L	all year
002	Nitrogen, Kjeldahl, total [as N]	30DA AVG	report only	all year
002	Nitrogen, Kjeldahl, total [as N]	30DA AVG	report only	all year
002	Phosphorus, total [as P]	ANNL AVG	<= 1 mg/L	all year
002	Phosphorus, total [as P]	30DA AVG	report only	all year
002	Phosphorus, total [as P]	30DA AVG	report only	all year
002	Cyanide, total [as CN]	DAILY MX	report only	all year
002	Cyanide, total [as CN]	DAILY MX	report only	all year
002	Arsenic, total [as As]	DAILY MX	report only	all year
002	Arsenic, total [as As]	DAILY MX	report only	all year
002	Cadmium, total [as Cd]	DAILY MX	report only	all year
002	Cadmium, total [as Cd]	DAILY MX	report only	all year
002	Chromium, total [as Cr]	DAILY MX	report only	all year
002	Chromium, total [as Cr]	DAILY MX	report only	all year
002	Copper, total [as Cu]	DAILY MX	report only	all year
002	Copper, total [as Cu]	DAILY MX	report only	all year
002	Lead, total [as Pb]	DAILY MX	report only	all year
002	Lead, total [as Pb]	DAILY MX	report only	all year
002	Molybdenum, total [as Mo]	DAILY MX	report only	all year
002	Molybdenum, total [as Mo]	DAILY MX	report only	all year
002	Nickel, total [as Ni]	DAILY MX	report only	all year
002	Nickel, total [as Ni]	DAILY MX	report only	all year
002	Silver, total [as Ag]	DAILY MX	report only	all year
002	Silver, total [as Ag]	DAILY MX	report only	Dec
002	Zinc, total [as Zn]	DAILY MX	report only	all year
002	Zinc, total [as Zn]	DAILY MX	report only	all year
002	Selenium, total [as Se]	DAILY MX	report only	all year
002	Selenium, total [as Se]	DAILY MX	report only	all year
002	Phosphate, ortho [as P]	30DA AVG	report only	all year
002	Flow, in conduit or thru treatment plant	MX MO AV	<= 4 MGD	all year
002	Flow, in conduit or thru treatment plant	DI	report only	all year
002	Flow, in conduit or thru treatment plant	MX MO AV	report only	all year
002	Flow, in conduit or thru treatment plant	DI	report only	all year
002	Chlorine, total residual	DAILY MX	<= 2.7 mg/L	Oct, Nov, Dec
002	Chlorine, total residual	DAILY MX	<= 1.3 mg/L	Jan, Feb, Mar
002	Chlorine, total residual	DAILY MX	<= 2.7 mg/L	Apr, May, Jun
002	Chlorine, total residual	DAILY MX	<= 17.7 mg/L	Jul, Aug, Sep
002	E. coli	MX MO AV	<= 126 #/100mL	all year
002	E. coli	MX WK AV	<= 157 #/100mL	all year
002	Nitrogen, nitrate total [as NO3]	30DA AVG	report only	all year
002	Nitrogen, nitrite total [as NO2]	30DA AVG	report only	all year
002	Mercury, total [as Hg]	DAILY MX	report only	all year
002	Mercury, total [as Hg]	DAILY MX	report only	all year
002	BOD, 5-day, percent removal	MN % RMV	>= 85 %	all year
002	Solids, suspended percent removal	MN % RMV	>= 85 %	all year
002	Pass/Fail Static Renewal 48Hr Acute Ceriodaphnia dubia	DAILY MX	<= 0 pass=0;fail=1	Jan, Feb, Mar, Jul, Aug, Sep
002	Pass/Fail Static Renewal 96Hr Acute Pimephales Promelas	DAILY MX	<= 0 pass=0;fail=1	Apr, May, Jun, Oct, Nov, Dec
002	Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia	DAILY MX	<= 0 fail=0;pass=1	Apr, May, Jun, Oct, Nov, Dec
002	Pass/Fail Static Renewal 7Day Chronic Pimephales promelas	DAILY MX	<= 0 fail=0;pass=1	Jan, Feb, Mar, Jul, Aug, Sep