DUNKIRK POWER LLC — NPDES permit NY0202711: limits, due date and EPA's record

NPDES permit NY0202711 · Minor NON-POTW · effective, expires 2031-03-31 · 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 (the most common figure among NY permits in EPA's filings — check your permit).

Limits in force (36)

Outfall	Parameter	Statistic	Limit	Months
001	Flow rate	DAILY AV	report only	all year
001	Flow rate	DAILY MX	report only	all year
001	pH	DAILY MN	>= 6.5 SU	all year
001	pH	DAILY MX	<= 8.5 SU	all year
001	Solids, total suspended	DAILY MX	<= 10 mg/L	all year
001	Nitrogen, total [as N]	DAILY MX	<= 6 mg/L (alert)	all year
001	Nitrogen, ammonia total [as N]	MO AVG	<= 1.2 mg/L	Jun, Jul, Aug, Sep, Oct
001	Nitrogen, ammonia total [as N]	MO AVG	<= 1.8 mg/L	Jan, Feb, Mar, Apr, May, Nov, Dec
001	Phosphorus, total [as P]	DAILY MX	<= 2 mg/L (alert)	all year
001	Iron, total [as Fe]	DAILY MX	<= .3 mg/L	all year
001	Aluminum, total [as Al]	DAILY MX	report only	all year
001	Mercury, total [as Hg]	DAILY MX	<= 50 ng/L	all year
002	Temperature, water deg. fahrenheit	DAILY MX	report only	all year
002	Flow rate	MO AVG	report only	all year
002	Flow rate	DAILY MX	report only	all year
002	pH	DAILY MN	>= 6.5 SU	all year
002	pH	DAILY MN	>= 6 SU	all year
002	pH	DAILY MX	<= 8.5 SU	all year
002	pH	DAILY MX	<= 9 SU	all year
002	Solids, total suspended	MO AVG	<= 30 mg/L	all year
002	Solids, total suspended	DAILY MX	<= 10 mg/L	all year
002	Solids, total suspended	DAILY MX	<= 50 mg/L	all year
002	Oil & Grease	DAILY MX	<= 20 mg/L	all year
002	Arsenic, total [as As]	DAILY MX	<= .1 mg/L	all year
002	Barium, total [as Ba]	DAILY MX	<= 10 mg/L	all year
002	Chromium, total [as Cr]	DAILY MX	<= .13 mg/L	all year
002	Iron, total [as Fe]	DAILY MX	<= .3 mg/L	all year
002	Manganese, total [as Mn]	DAILY MX	<= 3 mg/L	all year
002	Aluminum, total [as Al]	DAILY MX	<= 1 mg/L	all year
002	Selenium, total [as Se]	DAILY MX	<= .005 mg/L	all year
002	Selenium, total [as Se]	DAILY MX	report only	all year
002	Toxicity [acute], Ceriodaphnia dubia	DAILY MX	<= .3 tox acute (alert)	all year
002	Toxicity [chronic], Ceriodaphnia dubia	DAILY MX	<= 1 tox chronic (alert)	all year
002	Toxicity [acute], Pimephales promelas [Fathead Minnow]	DAILY MX	<= .3 tox acute (alert)	all year
002	Toxicity [chronic], Pimephales promelas [Fathead Minnow]	DAILY MX	<= 1 tox chronic (alert)	all year
002	Mercury, total [as Hg]	DAILY MX	<= 50 ng/L	all year