TOWN OF BELT — NPDES permit MT0021571: limits, due date and EPA's record

NPDES permit MT0021571 · Minor POTW · administratively continued, expires 2022-06-30 · EPA's file as of 2026-09-19

This permit expired on 2022-06-30 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 (read off this permit's own late-day counts in EPA's filings).

Limits in force (42)

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	BOD, 5-day, 20 deg. C	30DA AVG	<= 30 mg/L	all year
002	BOD, 5-day, 20 deg. C	7 DA AVG	<= 45 mg/L	all year
002	BOD, 5-day, 20 deg. C	30DA AVG	<= 39 lb/d	all year
002	BOD, 5-day, 20 deg. C	7 DA AVG	<= 58 lb/d	all year
002	BOD, 5-day, 20 deg. C	30DA AVG	report only	all year
002	pH	MINIMUM	>= 6 SU	all year
002	pH	MAXIMUM	<= 9 SU	all year
002	Solids, total suspended	30DA AVG	<= 45 mg/L	all year
002	Solids, total suspended	7 DA AVG	<= 65 mg/L	all year
002	Solids, total suspended	30DA AVG	<= 58 lb/d	all year
002	Solids, total suspended	7 DA AVG	<= 84 lb/d	all year
002	Solids, total suspended	30DA AVG	report only	all year
002	Oil & Grease	30DA AVG	report only	Jun, Dec
002	Oil & Grease	DAILY MX	report only	Jun, Dec
002	Nitrogen, total [as N]	30DA AVG	report only	Jun, Jul, Aug, Sep
002	Nitrogen, total [as N]	30DA AVG	report only	Jun, Jul, Aug, Sep
002	Nitrogen, ammonia total [as N]	30DA AVG	report only	all year
002	Nitrogen, ammonia total [as N]	30DA AVG	report only	all year
002	Phosphorus, total [as P]	30DA AVG	report only	Jun, Jul, Aug, Sep
002	Phosphorus, total [as P]	30DA AVG	report only	Jun, Jul, Aug, Sep
002	Hardness, total [as CaCO3]	ANNL AVG	report only	all year
002	Arsenic, total recoverable	ANNL AVG	report only	all year
002	Arsenic, total recoverable	ANNL AVG	report only	all year
002	Iron, total recoverable	ANNL AVG	report only	all year
002	Iron, total recoverable	ANNL AVG	report only	all year
002	Zinc, total recoverable	ANNL AVG	report only	all year
002	Zinc, total recoverable	ANNL AVG	report only	all year
002	Cadmium, total recoverable	ANNL AVG	report only	all year
002	Cadmium, total recoverable	ANNL AVG	report only	all year
002	Lead, total recoverable	ANNL AVG	report only	all year
002	Lead, total recoverable	ANNL AVG	report only	all year
002	E. coli, MTEC-MF	30DA AVG	<= 630 CFU/100mL	Jan, Feb, Mar, Nov, Dec
002	E. coli, MTEC-MF	30DA AVG	<= 126 CFU/100mL	Apr, May, Jun, Jul, Aug, Sep, Oct
002	E. coli, MTEC-MF	7 DA AVG	<= 1260 CFU/100mL	Jan, Feb, Mar, Nov, Dec
002	E. coli, MTEC-MF	7 DA AVG	<= 252 CFU/100mL	Apr, May, Jun, Jul, Aug, Sep, Oct
002	Chlorine, total residual	DAILY MX	<= .1 mg/L	all year
002	BOD, 5-day, percent removal	MINIMUM	>= 85 %	all year
002	Solids, suspended percent removal	MINIMUM	>= 65 %	all year