GREAT NECK WPC DISTRICT — NPDES permit NY0026999: limits, due date and EPA's record

NPDES permit NY0026999 · Major POTW · effective, expires 2027-01-31 · 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 (47)

Outfall	Parameter	Statistic	Limit	Months
003	Temperature, water deg. fahrenheit	DAILY MX	report only	all year
003	pH	MINIMUM	>= 6 SU (alert)	all year
003	pH	MAXIMUM	<= 9 SU (alert)	all year
003	Solids, total suspended	MO AVG	<= 30 mg/L	all year
003	Solids, total suspended	7 DA AVG	<= 45 mg/L	all year
003	Solids, total suspended	MO AVG	<= 1300 lb/d	all year
003	Solids, total suspended	7 DA AVG	<= 2000 lb/d	all year
003	Solids, total suspended	MO AVG	report only (alert)	all year
003	Solids, total suspended	MO AVG	report only (alert)	all year
003	Solids, settleable	DAILY MX	<= .1 mL/L	all year
003	Nitrogen, ammonia total [as N]	MO AVG	<= 5.4 mg/L	all year
003	Nitrogen, nitrite total [as N]	MO AVG	report only	all year
003	Nitrogen, nitrite total [as N]	MO AVG	report only	all year
003	Nitrogen, nitrate total [as N]	MO AVG	report only	all year
003	Nitrogen, nitrate total [as N]	MO AVG	report only	all year
003	Nitrogen, Kjeldahl, total [as N]	MO AVG	report only	all year
003	Nitrogen, Kjeldahl, total [as N]	MO AVG	report only	all year
003	Phosphorus, total [as P]	DAILY MX	report only	all year
003	Phosphorus, total [as P]	DAILY MX	report only	all year
003	Total agg concentration #4	MO AVG	report only	all year
003	Total agg concentration #4	MO AVG	report only	all year
003	Total agg concentration #4	MO AVG	report only	all year
003	Total agg concentration #4	MO AVG	report only	all year
003	Total agg concentration #1	Agg Rol Av	<= 959 lb/d	all year
003	Total agg concentration #2	1D	<= 242 lb/d	all year
003	Total agg concentration #3	MO AVG	report only	all year
003	Phosphate, ortho [as P]	DAILY MX	report only	all year
003	Phosphate, ortho [as P]	DAILY MX	report only	all year
003	Nitrogen, ammonia, total [as NH3]	MO AVG	report only	all year
003	Nitrogen, ammonia, total [as NH3]	MO AVG	report only	all year
003	Flow, in conduit or thru treatment plant	MO AVG	<= 5.3 MGD	all year
003	Chlorine, total residual	DAILY MX	<= .1 mg/L	all year
003	Mercury, total [as Hg]	ROLL AVG	<= 12 ng/L	all year
003	Mercury, total [as Hg]	DAILY MX	<= 50 ng/L	all year
003	Mercury, total [as Hg]	ROLL AVG	report only	all year
003	Mercury, total [as Hg]	DAILY MX	report only	all year
003	Coliform, fecal general	30DA GEO	<= 200 #/100mL	all year
003	Coliform, fecal general	7 DA GEO	<= 400 #/100mL	all year
003	Coliform, total general	MO MED	<= 700 #/100mL	all year
003	BOD, carbonaceous [5 day, 20 C]	MO AVG	<= 25 mg/L	all year
003	BOD, carbonaceous [5 day, 20 C]	7 DA AVG	<= 40 mg/L	all year
003	BOD, carbonaceous [5 day, 20 C]	MO AVG	<= 1100 lb/d	all year
003	BOD, carbonaceous [5 day, 20 C]	7 DA AVG	<= 1800 lb/d	all year
003	BOD, carbonaceous [5 day, 20 C]	MO AVG	report only (alert)	all year
003	BOD, carbonaceous [5 day, 20 C]	MO AVG	report only (alert)	all year
003	Solids, suspended percent removal	MO AV MN	>= 85 % (alert)	all year
003	Carbonaceous oxygen demand, % removal	MO AV MN	>= 85 % (alert)	all year