ROCK LAKE INC

NPDES permit PA0225738 · Minor NON-POTW · expired, expires 2023-01-18 · 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 2023-01-18 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

2required values missing, on 2 form(s)

0of 2 forms filed late

Last period with anything received: none.

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among PA permits in EPA's filings — check your permit).

Outfall ST1, form Y (ST1-Y): files for periods ending in Dec
Outfall ST2, form Y (ST2-Y): files for periods ending in Dec

Limits in force (2)

Outfall	Parameter	Statistic	Limit	Months
ST1	Flow, in conduit or thru treatment plant	ANNL AVG	<= 0 MGD	all year
ST2	Flow, in conduit or thru treatment plant	ANNL AVG	<= 0 MGD	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