DERMA POTW — NPDES permit MS0034975: limits, due date and EPA's record

NPDES permit MS0034975 · Minor POTW · effective, expires 2029-08-31 · 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 (27)

Outfall	Parameter	Statistic	Limit	Months
002	Oxygen, dissolved [DO]	MINIMUM	>= 6 mg/L	all year
002	BOD, 5-day, 20 deg. C	MX MO AV	<= 30 mg/L	all year
002	BOD, 5-day, 20 deg. C	MO TOTAL	report only	all year
002	BOD, 5-day, 20 deg. C	ANNL AVG	<= 22.5 lb/d	all year
002	BOD, 5-day, 20 deg. C	ANNL MAX	<= 33.8 lb/d	all year
002	BOD, 5-day, 20 deg. C	MX MO AV	report only	all year
002	BOD, 5-day, 20 deg. C	MO TOTAL	report only	all year
002	pH	MINIMUM	>= 6 SU	all year
002	pH	MAXIMUM	<= 9 SU	all year
002	Solids, total suspended	MX MO AV	<= 90 mg/L	all year
002	Solids, total suspended	MO TOTAL	report only	all year
002	Solids, total suspended	ANNL AVG	<= 45 lb/d	all year
002	Solids, total suspended	ANNL MAX	<= 67.6 lb/d	all year
002	Solids, total suspended	MX MO AV	report only	all year
002	Solids, total suspended	MO TOTAL	report only	all year
002	Nitrogen, total [as N]	MX MO AV	report only	all year
002	Nitrogen, total [as N]	MO TOTAL	report only	all year
002	Nitrogen, total [as N]	ANNL AVG	<= 20.1 lb/d	all year
002	Nitrogen, total [as N]	ANNL MAX	<= 30.15 lb/d	all year
002	Phosphorus, total [as P]	MX MO AV	report only	all year
002	Phosphorus, total [as P]	MO TOTAL	report only	all year
002	Phosphorus, total [as P]	ANNL AVG	<= 9.1 lb/mo	all year
002	Phosphorus, total [as P]	ANNL MAX	<= 13.65 lb/mo	all year
002	Flow, in conduit or thru treatment plant	MO TOTAL	report only	all year
002	Flow, in conduit or thru treatment plant	ANNL AVG	<= .06 MGD	all year
002	BOD, 5-day, percent removal	MINIMUM	>= 65 %	all year
002	Solids, suspended percent removal	MINIMUM	>= 65 %	all year