MORTON POTW

NPDES permit MS0036234 · Major POTW · effective, expires 2029-11-30 · 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

2values over a limit
0required values missing, on 0 form(s)
0of 15 forms filed late

Last period with anything received: 2026-07-31. Most often over: BOD, 5-day, 20 deg. C (1), Nitrogen, ammonia total [as N] (1).

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 (41)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]MINIMUM >= 6 mg/L all year
001Oxygen, dissolved [DO]MINIMUM report only all year
001Oxygen, dissolved [DO]MAXIMUM report only all year
001BOD, 5-day, 20 deg. CMO AVG <= 10 mg/L all year
001BOD, 5-day, 20 deg. CMX WK AV <= 15 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 247.7 lb/d all year
001BOD, 5-day, 20 deg. CMX WK AV <= 371.5 lb/d all year
001BOD, 5-day, 20 deg. CMO AVG report only all year
001BOD, 5-day, 20 deg. CMX WK AV report only all year
001BOD, 5-day, 20 deg. CMO AVG report only all year
001BOD, 5-day, 20 deg. CMX WK AV report only all year
001pHMINIMUM >= 6 SU all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedMX WK AV <= 45 mg/L all year
001Solids, total suspendedMO AVG <= 743.1 lb/d all year
001Solids, total suspendedMX WK AV <= 1114.6 lb/d all year
001Nitrogen, total [as N]MO AVG <= 337.1 lb/d all year
001Nitrogen, total [as N]MX WK AV <= 505.6 lb/d all year
001Nitrogen, ammonia total [as N]MO AVG <= 2 mg/L all year
001Nitrogen, ammonia total [as N]MX WK AV <= 3 mg/L all year
001Nitrogen, ammonia total [as N]MO AVG <= 49.5 lb/d all year
001Nitrogen, ammonia total [as N]MX WK AV <= 74.3 lb/d all year
001Phosphorus, total [as P]MO AVG <= 138.7 lb/d all year
001Phosphorus, total [as P]MX WK AV <= 208 lb/d all year
001Copper, total recoverableMO AVG <= .016 mg/L all year
001Copper, total recoverableMX WK AV <= .023 mg/L all year
001Flow, in conduit or thru treatment plantMO AVG <= 2.97 MGD all year
001Flow, in conduit or thru treatment plantMX WK AV report only all year
001Chlorine, free availableMO AVG <= .011 mg/L all year
001Chlorine, free availableMX WK AV <= .019 mg/L all year
001E. coliMO AVG <= 126 #/100mL all year
001E. coliMX WK AV <= 410 #/100mL all year
001BOD, 5-day, percent removalMINIMUM >= 85 % all year
001Solids, suspended percent removalMINIMUM >= 85 % all year
001Sludge settleability 30 minuteMINIMUM report only all year
001Sludge settleability 30 minuteMAXIMUM report only all year
001%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiaMINIMUM >= 98.71 % all year
001%Effect Static Renewal 7Day Chronic Pimephales promelasMINIMUM >= 98.71 % 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