Dakota Gasification Company

NPDES permit ND0025011 · Minor NON-POTW · effective, expires 2026-09-30 · 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

4values over a limit
0required values missing, on 0 form(s)
13of 21 forms filed late

Last period with anything received: 2026-06-30. Most often over: E. coli (4).

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 (128)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitDAILY MN report only all year
001Temperature, water deg. fahrenheitMO AVG report only all year
001Temperature, water deg. fahrenheitDAILY MX <= 85 deg F all year
001Temperature, water deg. fahrenheitDAILY MN report only (alert) all year
001Temperature, water deg. fahrenheit30DA AVG report only (alert) all year
001Temperature, water deg. fahrenheitDAILY MX report only (alert) all year
001BOD, 5-day, 20 deg. CDAILY MN report only all year
001BOD, 5-day, 20 deg. CMO AVG <= 25 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX <= 45 mg/L all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001pHMINIMUM report only (alert) all year
001pHMAXIMUM report only (alert) all year
001Solids, total suspendedDAILY MN report only all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedDAILY MX <= 45 mg/L all year
001Nitrogen, total [as N]DAILY MN report only all year
001Nitrogen, total [as N]MO AVG report only all year
001Nitrogen, total [as N]DAILY MX report only all year
001Nitrogen, total [as N]MO AVG report only all year
001Nitrogen, total [as N]DAILY MX report only all year
001Nitrogen, ammonia total [as N]DAILY MN report only all year
001Nitrogen, ammonia total [as N]MO AVG report only all year
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Nitrogen, ammonia total [as N]DAILY MN report only all year
001Nitrogen, ammonia total [as N]30DA AVG report only all year
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Nitrite + Nitrate total [as N]DAILY MN report only all year
001Nitrite + Nitrate total [as N]DAILY AV report only all year
001Nitrite + Nitrate total [as N]DAILY MX report only all year
001Phosphorus, total [as P]DAILY MN report only all year
001Phosphorus, total [as P]MO AVG report only all year
001Phosphorus, total [as P]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
001Barium, total [as Ba]DAILY MN report only all year
001Barium, total [as Ba]MO AVG report only all year
001Barium, total [as Ba]DAILY MX report only all year
001Boron, total [as B]DAILY MN report only all year
001Boron, total [as B]MO AVG report only all year
001Boron, total [as B]DAILY MX report only all year
001Zinc, total [as Zn]DAILY MN report only all year
001Zinc, total [as Zn]MO AVG report only all year
001Zinc, total [as Zn]DAILY MX report only all year
001Total phenolsDAILY MN report only all year
001Total phenolsMO AVG report only all year
001Total phenolsDAILY MX <= .3 mg/L 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
001Chlorine, total residualDAILY MN report only all year
001Chlorine, total residualMO AVG report only all year
001Chlorine, total residualDAILY MX report only all year
001E. coliDAILY MN report only all year
001E. coliGEO MEAN <= 126 #/100mL all year
001E. coliDAILY MX <= 409 #/100mL all year
001Flow, totalTOTAL report only all year
001Oil and grease visualTOTAL <= 0 N=0;Y=1 all year
001Toxic Units Static Renewal 48Hr Acute Ceriodaphnia dubiaM0 <= 1 tox acute all year
001TU Static Renewal 96Hr Acute Pimphales promelasM0 <= 1 tox acute all year
004BOD, 5-day, 20 deg. CMINIMUM report only all year
004BOD, 5-day, 20 deg. C30DA AVG report only all year
004BOD, 5-day, 20 deg. CDAILY MX report only all year
004pHMINIMUM >= 6 SU all year
004pHMAXIMUM <= 9 SU all year
004Solids, total suspendedMINIMUM report only all year
004Solids, total suspended30DA AVG report only all year
004Solids, total suspendedDAILY MX report only all year
004Oil & GreaseDAILY MN report only all year
004Oil & Grease30DA AVG report only all year
004Oil & GreaseDAILY MX report only all year
004Nitrogen, ammonia total [as N]DAILY MN report only all year
004Nitrogen, ammonia total [as N]30DA AVG report only all year
004Nitrogen, ammonia total [as N]DAILY MX report only all year
004Nitrite + Nitrate total [as N]DAILY MN report only all year
004Nitrite + Nitrate total [as N]30DA AVG report only all year
004Nitrite + Nitrate total [as N]DAILY MX report only all year
004Phosphorus, total [as P]DAILY MN report only all year
004Phosphorus, total [as P]30DA AVG report only all year
004Phosphorus, total [as P]DAILY MX report only all year
004Oil and grease visualTOTAL report only all year
005BOD, 5-day, 20 deg. CMINIMUM report only all year
005BOD, 5-day, 20 deg. C30DA AVG report only all year
005BOD, 5-day, 20 deg. CDAILY MX report only all year
005pHMINIMUM >= 6 SU all year
005pHMAXIMUM <= 9 SU all year
005Solids, total suspendedMINIMUM report only all year
005Solids, total suspended30DA AVG report only all year
005Solids, total suspendedDAILY MX report only all year
005Oil & GreaseDAILY MN report only all year
005Oil & Grease30DA AVG report only all year
005Oil & GreaseDAILY MX report only all year
005Nitrogen, ammonia total [as N]DAILY MN report only all year
005Nitrogen, ammonia total [as N]30DA AVG report only all year
005Nitrogen, ammonia total [as N]DAILY MX report only all year
005Nitrite + Nitrate total [as N]DAILY MN report only all year
005Nitrite + Nitrate total [as N]30DA AVG report only all year
005Nitrite + Nitrate total [as N]DAILY MX report only all year
005Phosphorus, total [as P]DAILY MN report only all year
005Phosphorus, total [as P]30DA AVG report only all year
005Phosphorus, total [as P]DAILY MX report only all year
005Oil and grease visualTOTAL report only all year
006BOD, 5-day, 20 deg. CMINIMUM report only all year
006BOD, 5-day, 20 deg. C30DA AVG report only all year
006BOD, 5-day, 20 deg. CDAILY MX report only all year
006pHMINIMUM >= 6 SU all year
006pHMAXIMUM <= 9 SU all year
006Solids, total suspendedMINIMUM report only all year
006Solids, total suspended30DA AVG report only all year
006Solids, total suspendedDAILY MX report only all year
006Oil & GreaseDAILY MN report only all year
006Oil & Grease30DA AVG report only all year
006Oil & GreaseDAILY MX report only all year
006Nitrogen, ammonia total [as N]DAILY MN report only all year
006Nitrogen, ammonia total [as N]30DA AVG report only all year
006Nitrogen, ammonia total [as N]DAILY MX report only all year
006Nitrite + Nitrate total [as N]DAILY MN report only all year
006Nitrite + Nitrate total [as N]30DA AVG report only all year
006Nitrite + Nitrate total [as N]DAILY MX report only all year
006Phosphorus, total [as P]DAILY MN report only all year
006Phosphorus, total [as P]30DA AVG report only all year
006Phosphorus, total [as P]DAILY MX report only all year
006Oil and grease visualTOTAL report only all year
008Flow rateMO AVG report only all year
008Flow rateDAILY MX report only all year
008Flow, totalTOTAL report only all year
008Isopropyl etherDAILY MN report only all year
008Isopropyl etherMO AVG report only all year
008Isopropyl etherDAILY 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