Mississippi Band of Choctaw Indians (New Harmony WWTF)

NPDES permit MS0058645 · Minor POTW · effective, expires 2030-03-31 · 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

7values over a limit
0required values missing, on 0 form(s)
0of 14 forms filed late

Last period with anything received: 2026-06-30. Most often over: BOD, carbonaceous [5 day, 20 C] (3), Solids, total suspended (3), Nitrogen, ammonia total [as N] (1).

Reporting

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

Limits in force (54)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitDAILY MN report only Jun, Jul, Aug, Sep
001Temperature, water deg. fahrenheitDAILY AV report only Jun, Jul, Aug, Sep
001Temperature, water deg. fahrenheitDAILY MX report only Jun, Jul, Aug, Sep
001Temperature, water deg. fahrenheitDAILY MN report only Jun, Jul, Aug, Sep
001Temperature, water deg. fahrenheitDAILY AV report only Jun, Jul, Aug, Sep
001Temperature, water deg. fahrenheitDAILY MX report only Jun, Jul, Aug, Sep
001Oxygen, dissolved [DO]DAILY MN >= 6 mg/L all year
001Oxygen, dissolved [DO]DAILY MN report only Jun, Jul, Aug, Sep
001Oxygen, dissolved [DO]DAILY AV report only Jun, Jul, Aug, Sep
001Oxygen, dissolved [DO]DAILY MX report only Jun, Jul, Aug, Sep
001Oxygen, dissolved [DO]DAILY MN report only Jun, Jul, Aug, Sep
001Oxygen, dissolved [DO]DAILY AV report only Jun, Jul, Aug, Sep
001Oxygen, dissolved [DO]DAILY MX report only Jun, Jul, Aug, Sep
001pHDAILY MN >= 6 SU all year
001pHDAILY MX <= 9 SU all year
001pHDAILY MN report only Jun, Jul, Aug, Sep
001pHDAILY MX report only Jun, Jul, Aug, Sep
001pHDAILY MN report only Jun, Jul, Aug, Sep
001pHDAILY MX report only Jun, Jul, Aug, Sep
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedWKLY AVG <= 45 mg/L all year
001Solids, total suspendedMO AVG <= 32.53 lb/d all year
001Solids, total suspendedWKLY AVG <= 48.79 lb/d all year
001Solids, total suspendedMO AVG report only all year
001Nitrogen, total [as N]MO AVG report only all year
001Nitrogen, total [as N]MO AVG report only all year
001Nitrogen, total [as N]WKLY AVG report only all year
001Nitrogen, total [as N]WKLY AVG report only all year
001Nitrogen, total [as N]MO AVG report only Jun, Jul, Aug, Sep
001Nitrogen, total [as N]WKLY AVG report only Jun, Jul, Aug, Sep
001Nitrogen, total [as N]MO AVG report only Jun, Jul, Aug, Sep
001Nitrogen, total [as N]WKLY AVG report only Jun, Jul, Aug, Sep
001Nitrogen, ammonia total [as N]MO AVG <= 2 mg/L all year
001Nitrogen, ammonia total [as N]WKLY AVG <= 3 mg/L all year
001Nitrogen, ammonia total [as N]MO AVG <= 2.17 lb/d all year
001Nitrogen, ammonia total [as N]WKLY AVG <= 3.25 lb/d all year
001Phosphorus, total [as P]MO AVG report only all year
001Phosphorus, total [as P]WKLY AVG report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantWKLY AVG report only all year
001Chlorine, total residualDAILY MX <= .011 mg/L all year
001E. coliMO AVG <= 126 #/100mL all year
001E. coliDAILY MX <= 410 #/100mL all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 10 mg/L all year
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 15 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 10.84 lb/d all year
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 16.26 lb/d all year
001BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
001BOD, carb-5 day, 20 deg C, percent removalMO AV MN >= 85 % all year
001Solids, suspended percent removalMO AV MN >= 85 % all year
001NOEL Static Renewal 7Day Chronic Ceriodaphnia dubiaMINIMUM >= 100 % all year
001NOEL Static Renewal 7Day Chronic Ceriodaphnia dubiaMINIMUM >= 100 % all year
001Noel Statre 7Day Chronic PimephalesMINIMUM >= 100 % all year
001Noel Statre 7Day Chronic PimephalesMINIMUM >= 100 % 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