CALHOUN CITY POTW

NPDES permit MS0028134 · Minor POTW · effective, expires 2029-07-31 · 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.

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

0values over a limit
10required values missing, on 1 form(s)
4of 12 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).

Limits in force (29)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]MINIMUM >= 6 mg/L all year
001BOD, 5-day, 20 deg. CMX MO AV <= 30 mg/L all year
001BOD, 5-day, 20 deg. CMO TOTAL report only all year
001BOD, 5-day, 20 deg. CANNL AVG <= 80 lb/d all year
001BOD, 5-day, 20 deg. CMX MO AV report only all year
001BOD, 5-day, 20 deg. CMO TOTAL report only all year
001BOD, 5-day, 20 deg. CANNL AVG report only all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMX MO AV <= 90 mg/L all year
001Solids, total suspendedMO TOTAL report only all year
001Solids, total suspendedANNL AVG <= 240 lb/d all year
001Solids, total suspendedMX MO AV report only all year
001Solids, total suspendedMO TOTAL report only all year
001Solids, total suspendedANNL AVG report only all year
001Nitrogen, total [as N]MO TOTAL report only all year
001Nitrogen, total [as N]ANNL AVG <= 30.7 lb/d all year
001Nitrogen, ammonia total [as N]MX MO AV <= 14 mg/L all year
001Nitrogen, ammonia total [as N]MO TOTAL report only all year
001Nitrogen, ammonia total [as N]ANNL AVG <= 5.3 lb/d all year
001Nitrogen, ammonia total [as N]MX MO AV report only all year
001Nitrogen, ammonia total [as N]MO TOTAL report only all year
001Nitrogen, ammonia total [as N]ANNL AVG report only all year
001Phosphorus, total [as P]MO TOTAL report only all year
001Phosphorus, total [as P]ANNL AVG <= 13.9 lb/d all year
001Flow, in conduit or thru treatment plantANNL AVG <= .32 MGD all year
001BOD, 5-day, percent removalMINIMUM >= 65 % all year
001Solids, suspended percent removalMINIMUM >= 65 % all year
001Flow, totalMO TOTAL 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