Blunt, City of — NPDES permit SD0025020: limits, due date and EPA's record

NPDES permit SD0025020 · Minor POTW · effective, expires 2027-12-31 · 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 (24)

Outfall	Parameter	Statistic	Limit	Months
001	Temperature, water deg. centigrade	30DA AVG	report only	all year
001	Temperature, water deg. centigrade	DAILY MX	report only	all year
001	Flow rate	30DA AVG	report only	all year
001	Flow rate	DAILY MX	report only	all year
001	BOD, 5-day, 20 deg. C	30DA AVG	<= 30 mg/L	all year
001	BOD, 5-day, 20 deg. C	MX 7D AV	<= 45 mg/L	all year
001	pH	DAILY MN	>= 6 SU	all year
001	pH	DAILY MX	<= 9 SU	all year
001	Solids, total suspended	30DA AVG	<= 30 mg/L	all year
001	Solids, total suspended	MX 7D AV	<= 45 mg/L	all year
001	Nitrogen, total [as N]	DAILY MX	report only	all year
001	Nitrogen, ammonia total [as N]	30DA AVG	<= 3.6 mg/L	Sep, Oct, Nov
001	Nitrogen, ammonia total [as N]	30DA AVG	<= 1.4 mg/L	Jun, Jul, Aug
001	Nitrogen, ammonia total [as N]	30DA AVG	<= 6.4 mg/L	Jan, Feb, Dec
001	Nitrogen, ammonia total [as N]	30DA AVG	<= 3.6 mg/L	Mar, Apr, May
001	Nitrogen, ammonia total [as N]	DAILY MX	report only	Sep, Oct, Nov
001	Nitrogen, ammonia total [as N]	DAILY MX	<= 7 mg/L	Jun, Jul, Aug
001	Nitrogen, ammonia total [as N]	DAILY MX	report only	Jan, Feb, Dec
001	Nitrogen, ammonia total [as N]	DAILY MX	report only	Mar, Apr, May
001	Phosphorus, total [as P]	DAILY MX	report only	all year
001	E. coli, colony forming units [CFU]	30DA GEO	<= 630 #/100mL	May, Jun, Jul, Aug, Sep
001	E. coli, colony forming units [CFU]	DAILY MX	<= 1178 #/100mL	May, Jun, Jul, Aug, Sep
001	Flow, total	MO TOTAL	report only	all year
001	Duration of discharge	MO TOTAL	report only	all year