STAMPS, CITY OF

NPDES permit AR0052906 · Minor NON-POTW · administratively continued, expires 2024-08-31 · 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 2024-08-31 and is administratively continued: 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
20required values missing, on 2 form(s)
12of 15 forms filed late

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

Reporting

Reports are due about 25 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (20)

OutfallParameterStatisticLimitMonths
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG <= 20 mg/L all year
001Solids, total suspendedDAILY MX <= 30 mg/L all year
001Iron, dissolved [as Fe]MO AVG <= 1 mg/L all year
001Iron, dissolved [as Fe]DAILY MX <= 2 mg/L all year
001Manganese, dissolved [as Mn]MO AVG <= 1 mg/L all year
001Manganese, dissolved [as Mn]DAILY MX <= 2 mg/L all year
001Aluminum, dissolved [as Al]MO AVG <= 1 mg/L all year
001Aluminum, dissolved [as Al]DAILY MX <= 2 mg/L all year
001Lead, total recoverableMO AVG <= 2.67 ug/L all year
001Lead, total recoverableDAILY MX <= 5.37 ug/L all year
001Lead, total recoverableMO AVG <= .01113 lb/d all year
001Lead, total recoverableDAILY MX <= .02237 lb/d all year
001Copper, total recoverableMO AVG <= 9.09 ug/L all year
001Copper, total recoverableDAILY MX <= 18.27 ug/L all year
001Copper, total recoverableMO AVG <= .03794 lb/d all year
001Copper, total recoverableDAILY MX <= .07626 lb/d all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX 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