MADISON ELEMENTARY SCHOOL

NPDES permit IN0062499 · Minor NON-POTW · effective, expires 2031-07-31 · EPA's file as of 2026-09-26

Keep this permit as a site — opens New site at EPA's facility point (41.534306, -86.116278); you set the radius.

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.

These are the last limits EPA's file holds for this permit, from an earlier version of it (version 4 in EPA's file): its current version carries none yet. Read your permit: a renewal can change them.

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

0values over a limit

0required values missing, on 0 form(s)

0of 4 forms filed late

Last period with anything received: 2026-06-30.

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).

How strict are these limits?

Each concentration limit against the same limit in comparable permits. Where it appears more than once, its strictest value.

Iron, total recoverable, monthly average 1.8 mg/L — stricter than 61% of 92 other minor industrial and other permits in Indiana; 27% have the same limit
Iron, total recoverable, daily maximum 4.1 mg/L — stricter than 53% of 95 other minor industrial and other permits in Indiana; 35% have the same limit
Solids, total suspended, daily maximum 40 mg/L — stricter than 40% of 260 other minor industrial and other permits in Indiana; 40% have the same limit
Solids, total suspended, monthly average 20 mg/L — stricter than 30% of 428 other minor industrial and other permits in Indiana; 26% have the same limit
pH, daily minimum at least 6 SU — stricter than 0% of 566 other minor industrial and other permits in Indiana; 100% have the same limit
pH, daily maximum 9 SU — stricter than 0% of 565 other minor industrial and other permits in Indiana; 100% have the same limit

Limits in force (9)

Outfall	Parameter	Statistic	Limit	Months
001	pH	daily minimum	>= 6 SU	Mar, Jun, Sep, Dec
001	pH	daily maximum	<= 9 SU	Mar, Jun, Sep, Dec
001	Solids, total suspended	monthly average	<= 20 mg/L	Mar, Jun, Sep, Dec
001	Solids, total suspended	daily maximum	<= 40 mg/L	Mar, Jun, Sep, Dec
001	Iron, total recoverable	monthly average	<= 1.8 mg/L	Mar, Jun, Sep, Dec
001	Iron, total recoverable	daily maximum	<= 4.1 mg/L	Mar, Jun, Sep, Dec
001	Flow, in conduit or thru treatment plant	monthly average	report only	Mar, Jun, Sep, Dec
001	Flow, in conduit or thru treatment plant	daily maximum	report only	Mar, Jun, Sep, Dec
001	Flow, total	monthly total	report only	Mar, Jun, Sep, Dec

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