GIBRALTAR ROCK @ BELLE MEAD — NPDES permit NJ0003255: limits, due date and EPA's record

NPDES permit NJ0003255 · Minor NON-POTW · effective, expires 2026-09-30 · EPA's file as of 2026-09-19

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

Reporting

Reports are due about 26 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (24)

Outfall	Parameter	Statistic	Limit	Months
002	Temperature, water deg. centigrade	MO AVG	report only	all year
002	Temperature, water deg. centigrade	DAILY MX	report only	all year
002	Turbidity	MO AVG	report only	all year
002	Turbidity	DAILY MX	report only	all year
002	Oxygen, dissolved [DO]	INST MIN	report only	all year
002	Oxygen, dissolved [DO]	1H	report only	all year
002	Oxygen demand, chem. [high level] [COD]	MO AVG	<= 100 mg/L	all year
002	Oxygen demand, chem. [high level] [COD]	DAILY MX	report only	all year
002	pH	MO MIN	>= 6 SU	all year
002	pH	MO MAX	<= 9 SU	all year
002	Solids, total suspended	MO AVG	report only	all year
002	Solids, total suspended	DAILY MX	report only	all year
002	Hydrocarbons, in H2O, IR, CC14 extractible chromatograph	MO AVG	<= 10 mg/L	all year
002	Hydrocarbons, in H2O, IR, CC14 extractible chromatograph	DAILY MX	<= 15 mg/L	all year
002	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
002	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
002	Acrylamide	MO AVG	report only	all year
002	Acrylamide	DAILY MX	report only	all year
002	Solids, total dissolved	MO AVG	<= 500 mg/L	all year
002	Solids, total dissolved	DAILY MX	report only	all year
002	Duration of discharge	QT	report only	all year
002	Flow, total	QT	report only	all year
002	Flow, total	QT	report only	all year
002	NOAEL Statis Renewal 48Hr Acute Ceriodaphnia dubia	MINIMUM	report only	all year