LYDALL PERFORMANCE MATERIALS (US), INC. (DBA ALKEGEN) — NPDES permit NY0003344: limits, due date and EPA's record

NPDES permit NY0003344 · Major NON-POTW · effective, expires 2030-02-28 · 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 (45)

Outfall	Parameter	Statistic	Limit	Months
001	Temperature, water deg. fahrenheit	MO AVG	report only	all year
001	Temperature, water deg. fahrenheit	DAILY MX	<= 95 deg F	all year
001	Zinc, total [as Zn]	DAILY MX	<= 110 ug/L (alert)	all year
001	Mercury, total [as Hg]	DAILY MX	<= 50 ng/L	all year
001	Chemical Oxygen Demand [COD]	DAILY MX	<= 120 mg/L (alert)	all year
003	Temperature, water deg. fahrenheit	MO AVG	report only	all year
003	Temperature, water deg. fahrenheit	DAILY MX	<= 95 deg F	all year
003	Turbidity	MO AVG	report only	all year
003	Turbidity	DAILY MX	report only	all year
003	BOD, 5-day, 20 deg. C	MO AVG	report only	all year
003	BOD, 5-day, 20 deg. C	DAILY MX	report only	all year
003	BOD, 5-day, 20 deg. C	MO AVG	<= 740 lb/d	all year
003	BOD, 5-day, 20 deg. C	DAILY MX	<= 1300 lb/d	all year
003	BOD, 5-day, 20 deg. C	MO AVG	report only	all year
003	BOD, 5-day, 20 deg. C	MO AVG	report only	all year
003	pH	DAILY MN	>= 6 SU	all year
003	pH	DAILY MX	<= 9 SU	all year
003	Solids, total suspended	MO AVG	report only	all year
003	Solids, total suspended	DAILY MX	report only	all year
003	Solids, total suspended	MO AVG	<= 590 lb/d	all year
003	Solids, total suspended	DAILY MX	<= 1200 lb/d	all year
003	Solids, total suspended	MO AVG	report only	all year
003	Solids, total suspended	MO AVG	report only	all year
003	Solids, settleable	MO AVG	report only	all year
003	Solids, settleable	DAILY MX	<= .3 mL/L	all year
003	Zinc, total [as Zn]	MO AVG	report only	all year
003	Zinc, total [as Zn]	DAILY MX	report only	all year
003	Zinc, total [as Zn]	MO AVG	<= 4 lb/d	all year
003	Zinc, total [as Zn]	DAILY MX	<= 8 lb/d	all year
003	Aluminum, total [as Al]	MO AVG	<= 4 mg/L	all year
003	Aluminum, total [as Al]	DAILY MX	<= 2 mg/L	all year
003	Nitrogen, ammonia, total [as NH3]	MO AVG	report only	all year
003	Nitrogen, ammonia, total [as NH3]	DAILY MX	report only	all year
003	Nitrogen, ammonia, total [as NH3]	MO AVG	<= 300 lb/d	all year
003	Nitrogen, ammonia, total [as NH3]	DAILY MX	<= 590 lb/d	all year
003	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
003	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
003	Chlorine, total residual	MO AVG	report only	all year
003	Chlorine, total residual	DAILY MX	<= 2 mg/L	all year
003	Toxicity [acute], Ceriodaphnia dubia	MAXIMUM	<= 15 tox acute (alert)	all year
003	Toxicity [chronic], Ceriodaphnia dubia	MAXIMUM	<= 100 tox chronic (alert)	all year
003	Toxicity [acute], Pimephales promelas [Fathead Minnow]	MAXIMUM	<= 15 tox acute (alert)	all year
003	Toxicity [chronic], Pimephales promelas [Fathead Minnow]	MAXIMUM	<= 100 tox chronic (alert)	all year
003	Mercury, total [as Hg]	DAILY MX	<= 50 ng/L	all year
003	Mercury, total [as Hg]	DAILY MX	report only	all year