LAFAYETTE COUNTY INDUSTRIAL PARK — NPDES permit MS0043079: limits, due date and EPA's record

NPDES permit MS0043079 · Minor POTW · effective, expires 2029-10-31 · EPA's file as of 2026-09-19

Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

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

Last period with anything received: 2026-08-31. Most often over: Nitrogen, ammonia total [as N] (4), Oxygen, dissolved [DO] (2), BOD, 5-day, 20 deg. C (2).

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 (21)

Outfall	Parameter	Statistic	Limit	Months
001	Oxygen, dissolved [DO]	MINIMUM	>= 6 mg/L	all year
001	BOD, 5-day, 20 deg. C	MO AVG	<= 17 mg/L	all year
001	BOD, 5-day, 20 deg. C	DAILY MX	<= 25.5 mg/L	all year
001	BOD, 5-day, 20 deg. C	MO AVG	<= 42.5 lb/d	all year
001	BOD, 5-day, 20 deg. C	DAILY MX	<= 63.8 lb/d	all year
001	pH	MINIMUM	>= 6 SU	all year
001	pH	MAXIMUM	<= 9 SU	all year
001	Solids, total suspended	MO AVG	<= 30 mg/L	all year
001	Solids, total suspended	DAILY MX	<= 45 mg/L	all year
001	Solids, total suspended	MO AVG	<= 75.1 lb/d	all year
001	Solids, total suspended	DAILY MX	<= 112.6 lb/d	all year
001	Nitrogen, ammonia total [as N]	MO AVG	<= 2 mg/L	all year
001	Nitrogen, ammonia total [as N]	DAILY MX	<= 3 mg/L	all year
001	Nitrogen, ammonia total [as N]	MO AVG	<= 5 lb/d	all year
001	Nitrogen, ammonia total [as N]	DAILY MX	<= 7.5 lb/d	all year
001	Flow, in conduit or thru treatment plant	MO AVG	<= .3 MGD	all year
001	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
001	Chlorine, total residual	MO AVG	<= .011 mg/L	all year
001	Chlorine, total residual	DAILY MX	<= .019 mg/L	all year
001	E. coli	MO AVG	<= 126 #/100mL	all year
001	E. coli	DAILY MX	<= 410 #/100mL	all year