Butler Co Brd of Comm

NPDES permit OH0123145 · Minor POTW · effective, expires 2029-02-28 · EPA's file as of 2026-09-19

Check this month's numbers before you file

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

4values over a limit
0required values missing, on 0 form(s)
9of 34 forms filed late

Last period with anything received: 2026-07-31. Most often over: Solids, total suspended (4).

Reporting

Reports are due about 20 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (60)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeMO AVG report only all year
001Temperature, water deg. centigradeDAILY MX report only all year
001Oxygen, dissolved [DO]DAILY MN >= 6 mg/L all year
001pHDAILY MN >= 6.5 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspendedMO AVG <= 12 mg/L all year
001Solids, total suspendedWKLY MAX <= 18 mg/L all year
001Solids, total suspendedMO AVG <= 23 kg/d all year
001Solids, total suspendedWKLY MAX <= 34 kg/d all year
001Oil and grease, hexane extr methodDAILY MX <= 10 mg/L all year
001Nitrogen, ammonia total [as N]MO AVG <= 1 mg/L May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 3 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, ammonia total [as N]WKLY MAX <= 1.5 mg/L May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]WKLY MAX <= 4.5 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 1.9 kg/d May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 5.7 kg/d Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, ammonia total [as N]WKLY MAX <= 2.8 kg/d May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]WKLY MAX <= 8.5 kg/d Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
001Nitrogen, Kjeldahl, total [as N]DAILY MX report only all year
001Nitrite + Nitrate total [as N]MO AVG report only all year
001Nitrite + Nitrate total [as N]DAILY MX report only all year
001Phosphorus, total [as P]MO AVG report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Nickel, total recoverableMO AVG report only Jun, Dec
001Nickel, total recoverableDAILY MX report only Jun, Dec
001Zinc, total recoverableMO AVG report only Jun, Dec
001Zinc, total recoverableDAILY MX report only Jun, Dec
001Cadmium, total recoverableMO AVG report only Jun, Dec
001Cadmium, total recoverableDAILY MX report only Jun, Dec
001Lead, total recoverableMO AVG report only Jun, Dec
001Lead, total recoverableDAILY MX report only Jun, Dec
001Chromium, total recoverableMO AVG report only Jun, Dec
001Chromium, total recoverableDAILY MX report only Jun, Dec
001Copper, total recoverableMO AVG report only Jun, Dec
001Copper, total recoverableDAILY MX report only Jun, Dec
001Chromium, hexavalent dissolved [as Cr]MO AVG report only Jun, Dec
001Chromium, hexavalent dissolved [as Cr]DAILY MX report only Jun, Dec
001E. coli, MTEC-MFMO GEOMN <= 126 MPN/100mL May, Jun, Jul, Aug, Sep, Oct
001E. coli, MTEC-MFWK GEOMN <= 284 MPN/100mL May, Jun, Jul, Aug, Sep, Oct
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Mercury, total low levelMO AVG report only Jun, Dec
001Mercury, total low levelDAILY MX report only Jun, Dec
001Solids, total dissolved- 180 deg. CMO AVG report only all year
001Solids, total dissolved- 180 deg. CDAILY MX report only all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 10 mg/L all year
001BOD, carbonaceous [5 day, 20 C]WKLY MAX <= 15 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 19 kg/d all year
001BOD, carbonaceous [5 day, 20 C]WKLY MAX <= 28 kg/d all year
300OverflowsMO AVG report only all year
300OverflowsDAILY MX report only all year
588Sludge weight, dryMO AVG report only Dec
588Sludge weight, dryDAILY MX report only Dec
601pHDAILY MN report only all year
601pHDAILY MX report only all year
601Solids, total suspendedMO AVG report only all year
601Solids, total suspendedDAILY MX report only all year
601BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
601BOD, carbonaceous [5 day, 20 C]DAILY 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