MOUNT VERNON (C)

NPDES permit NY0260312 · Minor NON-POTW · expired, expires 2020-12-31 · 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.

This permit expired on 2020-12-31 and is expired: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

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

0values over a limit

62required values missing, on 16 form(s)

19of 19 forms filed late

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

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).

Outfall 001, form M (SITE STORMWATER): every 1 month(s), 5 values
Outfall 001, form Q (QUARTERLY MERCURY MONITORING): files for periods ending in Jan, Apr, Jul, Oct
Outfall 001, form V (QUARTERLY ACTION LEVELS): files for periods ending in Jan, Apr, Jul, Oct

Limits in force (10)

Outfall	Parameter	Statistic	Limit	Months
001	Flow rate	DAILY MX	report only	all year
001	pH	MINIMUM	>= 6 SU	all year
001	pH	MAXIMUM	<= 9 SU	all year
001	Oil & Grease	DAILY MX	<= 15 mg/L	all year
001	Nitrogen, ammonia total [as N]	DAILY MX	<= 12.29 mg/L	Jan, Feb, Mar, Apr, May, Nov, Dec
001	Nitrogen, ammonia total [as N]	DAILY MX	<= 2.89 mg/L	Jun, Jul, Aug, Sep, Oct
001	Toluene	DAILY MX	<= .1 mg/L (alert)	all year
001	Benzene	DAILY MX	<= .1 mg/L (alert)	all year
001	Mercury, total [as Hg]	DAILY MX	<= 50 ng/L	all year
001	Xylene [mix of m+o+p]	DAILY MX	<= .1 mg/L (alert)	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