New Hanover County — NPDES permit NC0049743: limits, due date and EPA's record

NPDES permit NC0049743 · Minor NON-POTW · effective, expires 2031-05-31 · EPA's file as of 2026-09-19

Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

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

Last period with anything received: 2026-06-30. Most often over: Chromium, hexavalent [as Cr] (1).

Reporting

Reports are due about 31 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
001	BOD, 5-day, 20 deg. C	30DA AVG	<= 30 mg/L	all year
001	BOD, 5-day, 20 deg. C	DAILY MX	<= 45 mg/L	all year
001	Oxygen demand, chem. [high level] [COD]	DAILY MX	report only	all year
001	pH	DAILY MN	>= 6 SU	all year
001	pH	DAILY MX	<= 9 SU	all year
001	Solids, total suspended	30DA AVG	<= 27 mg/L	all year
001	Solids, total suspended	DAILY MX	<= 45 mg/L	all year
001	Nitrogen, ammonia total [as N]	30DA AVG	<= 4.9 mg/L	all year
001	Nitrogen, ammonia total [as N]	DAILY MX	<= 10 mg/L	all year
001	Cyanide, total [as CN]	30DA AVG	<= 5 ug/L	all year
001	Cyanide, total [as CN]	DAILY MX	<= 22 ug/L	all year
001	Copper, total [as Cu]	30DA AVG	<= 3.94 ug/L	all year
001	Copper, total [as Cu]	DAILY MX	<= 5.24 ug/L	all year
001	Zinc, total [as Zn]	30DA AVG	<= 110 ug/L	all year
001	Zinc, total [as Zn]	DAILY MX	<= 200 ug/L	all year
001	Phenol	30DA AVG	<= 15 ug/L	all year
001	Phenol	DAILY MX	<= 26 ug/L	all year
001	Flow, in conduit or thru treatment plant	30DA AVG	<= .05 MGD	all year
001	p-Cresol	30DA AVG	<= 14 ug/L	all year
001	p-Cresol	DAILY MX	<= 25 ug/L	all year
001	Benzoic acids, total	30DA AVG	<= 71 ug/L	all year
001	Benzoic acids, total	DAILY MX	<= 120 ug/L	all year
001	.alpha.-Terpineol	30DA AVG	<= 16 ug/L	all year
001	.alpha.-Terpineol	DAILY MX	<= 33 ug/L	all year