Virginia Institute of Marine Science

NPDES permit VA0071528 · Minor NON-POTW · effective, expires 2028-02-29 · EPA's file as of 2026-09-19

Check this month's numbers before you file

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

0values over a limit

0required values missing, on 0 form(s)

0of 11 forms filed late

Last period with anything received: 2026-07-31.

Reporting

Reports are due about 10 days after each monitoring period ends (the most common figure among VA permits in EPA's filings — check your permit).

Outfall 004, form M1: every 1 month(s), 5 values

Limits in force (5)

Outfall	Parameter	Statistic	Limit	Months
004	Oxygen, dissolved [DO]	MINIMUM	>= 5 mg/L	all year
004	pH	DAILY MN	>= 6 SU	all year
004	pH	DAILY MX	<= 9 SU	all year
004	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
004	Flow, in conduit or thru treatment plant	MO MAX	report only	all year

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states