United States Gypsum Company

NPDES permit OH0031046 · Minor NON-POTW · effective, expires 2030-04-30 · 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

16values over a limit
0required values missing, on 0 form(s)
0of 55 forms filed late

Last period with anything received: 2026-07-31. Most often over: BOD, 5-day, 20 deg. C (11), Solids, total suspended (4), pH, maximum (1).

Reporting

Reports are due about 20 days after each monitoring period ends (the most common figure among OH permits in EPA's filings — check your permit).

Limits in force (36)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeMO AVG report only all year
001Temperature, water deg. centigradeDAILY MX report only all year
001Oxygen, dissolved [DO]DAILY MN >= 5 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 21.6 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX <= 57.2 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 44.5 kg/d all year
001BOD, 5-day, 20 deg. CDAILY MX <= 131.6 kg/d all year
001Solids, total suspendedMO AVG <= 48.9 mg/L all year
001Solids, total suspendedDAILY MX <= 73.2 mg/L all year
001Solids, total suspendedMO AVG <= 100 kg/d all year
001Solids, total suspendedDAILY MX <= 150 kg/d all year
001Oil and grease, hexane extr methodDAILY MX <= 10 mg/L all year
001Nitrogen, ammonia total [as N]MO AVG report only all year
001Nitrogen, ammonia 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
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001pH, maximumDAILY MX <= 9 SU all year
001pH, minimumDAILY MN >= 6.5 SU all year
002Solids, total suspendedMO AVG report only Mar, Jun, Aug, Dec
002Solids, total suspendedDAILY MX report only Mar, Jun, Aug, Dec
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
003Solids, total suspendedMO AVG report only Mar, Jun, Aug, Dec
003Solids, total suspendedDAILY MX report only Mar, Jun, Aug, Dec
003Flow, in conduit or thru treatment plantMO AVG report only all year
003Flow, in conduit or thru treatment plantDAILY MX report only all year
005Solids, total suspendedMO AVG report only Mar, Jun, Aug, Dec
005Solids, total suspendedDAILY MX report only Mar, Jun, Aug, Dec
005Flow, in conduit or thru treatment plantMO AVG report only all year
005Flow, in conduit or thru treatment plantDAILY MX report only all year
801Flow, in conduit or thru treatment plantMO AVG report only all year
801Flow, in conduit or thru treatment plantDAILY 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