Oppelo, City of - Oppelo Municipal Sewage Treatment Plant

NPDES permit AR0047643 · Minor POTW · effective, expires 2026-11-30 · EPA's file as of 2026-09-19

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

13values over a limit
0required values missing, on 0 form(s)
0of 22 forms filed late

Last period with anything received: 2026-07-31. Most often over: Coliform, fecal general (5), Oxygen, dissolved [DO] (4), Solids, total suspended (4).

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 (46)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]INST MIN >= 2 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001Oxygen, dissolved [DO]INST MIN >= 3 mg/L May, Jun, Jul, Aug, Sep, Oct
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG <= 20 mg/L all year
001Solids, total suspended7 DA AVG <= 30 mg/L all year
001Solids, total suspendedMO AVG <= 16.7 lb/d all year
001Nitrogen, ammonia total [as N]MO AVG <= 5 mg/L May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 10 mg/L Jan, Feb, Mar, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 5.6 mg/L Apr
001Nitrogen, ammonia total [as N]7 DA AVG <= 7.5 mg/L May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]7 DA AVG <= 15 mg/L Jan, Feb, Mar, Nov, Dec
001Nitrogen, ammonia total [as N]7 DA AVG <= 5.6 mg/L Apr
001Nitrogen, ammonia total [as N]MO AVG <= 4.2 lb/d May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 8.3 lb/d Jan, Feb, Mar, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 4.7 lb/d Apr
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Chlorine, total residualINST MAX report only all year
001Coliform, fecal general30DA GEO <= 1000 #/100mL all year
001Coliform, fecal general7 DA GEO <= 2000 #/100mL all year
001OverflowsMO TOTAL report only all year
001Overflow volume [SS0 volume, CSO volume]MO TOTAL report only all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 20 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 15 mg/L May, Jun, Jul, Aug, Sep, Oct
001BOD, carbonaceous [5 day, 20 C]7 DA AVG <= 30 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]7 DA AVG <= 23 mg/L May, Jun, Jul, Aug, Sep, Oct
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 16.7 lb/d Jan, Feb, Mar, Apr, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 12.5 lb/d May, Jun, Jul, Aug, Sep, Oct
002Oxygen, dissolved [DO]INST MIN >= 2 mg/L all year
002BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
002BOD, 5-day, 20 deg. C7 DA AVG <= 45 mg/L all year
002BOD, 5-day, 20 deg. CMO AVG <= 25 lb/d all year
002pHMINIMUM >= 6 SU all year
002pHMAXIMUM <= 9 SU all year
002Solids, total suspendedMO AVG <= 30 mg/L all year
002Solids, total suspended7 DA AVG <= 45 mg/L all year
002Solids, total suspendedMO AVG <= 25 lb/d all year
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002Coliform, fecal general30DA GEO <= 200 #/100mL May, Jun, Jul, Aug, Sep
002Coliform, fecal general30DA GEO <= 1000 #/100mL Jan, Feb, Mar, Apr, Oct, Nov, Dec
002Coliform, fecal general7 DA GEO <= 400 #/100mL May, Jun, Jul, Aug, Sep
002Coliform, fecal general7 DA GEO <= 2000 #/100mL Jan, Feb, Mar, Apr, Oct, Nov, Dec
002OverflowsMO TOTAL report only all year
002Overflow volume [SS0 volume, CSO volume]MO 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