South Central Regional Water District

NPDES permit ND0026301 · Minor NON-POTW · effective, expires 2030-12-31 · 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

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

Last period with anything received: 2026-06-30.

Reporting

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

Limits in force (116)

OutfallParameterStatisticLimitMonths
001ConductivityDAILY MN report only all year
001ConductivityQRTR AVG report only all year
001ConductivityDAILY MX report only all year
001Oxygen, dissolved [DO]DAILY MN >= 5 mg/L all year
001Oxygen, dissolved [DO]QRTR AVG report only all year
001Oxygen, dissolved [DO]DAILY MX report only all year
001BOD, 5-day, 20 deg. CDAILY MN report only all year
001BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX <= 45 mg/L all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 9 SU all year
001Alkalinity, total [as CaCO3]MINIMUM report only all year
001Alkalinity, total [as CaCO3]AVERAGE report only all year
001Alkalinity, total [as CaCO3]MAXIMUM report only all year
001Bicarbonate ion- [as HCO3]MINIMUM report only all year
001Bicarbonate ion- [as HCO3]AVERAGE report only all year
001Bicarbonate ion- [as HCO3]MAXIMUM report only all year
001Carbonate ion- [as CO3]MINIMUM report only all year
001Carbonate ion- [as CO3]AVERAGE report only all year
001Carbonate ion- [as CO3]MAXIMUM report only all year
001Solids, total suspendedDAILY MN report only all year
001Solids, total suspendedQRTR AVG report only all year
001Solids, total suspendedDAILY MX <= 90 mg/L all year
001Nitrogen, total [as N]DAILY MN report only all year
001Nitrogen, total [as N]QRTR AVG report only all year
001Nitrogen, total [as N]DAILY MX report only all year
001Nitrite + Nitrate total [as N]MINIMUM report only all year
001Nitrite + Nitrate total [as N]AVERAGE report only all year
001Nitrite + Nitrate total [as N]MAXIMUM report only all year
001Phosphorus, total [as P]DAILY MN report only all year
001Phosphorus, total [as P]QRTR AVG report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Hardness, total [as CaCO3]MINIMUM report only all year
001Hardness, total [as CaCO3]AVERAGE report only all year
001Hardness, total [as CaCO3]MAXIMUM report only all year
001Hardness, total [as CaCO3]MINIMUM report only all year
001Hardness, total [as CaCO3]AVERAGE report only all year
001Hardness, total [as CaCO3]MAXIMUM report only all year
001Calcium, total [as Ca]MINIMUM report only all year
001Calcium, total [as Ca]AVERAGE report only all year
001Calcium, total [as Ca]MAXIMUM report only all year
001Magnesium, total [as Mg]MINIMUM report only all year
001Magnesium, total [as Mg]AVERAGE report only all year
001Magnesium, total [as Mg]MAXIMUM report only all year
001Sodium, total [as Na]MINIMUM report only all year
001Sodium, total [as Na]AVERAGE report only all year
001Sodium, total [as Na]MAXIMUM report only all year
001Sodium adsorption ratioMINIMUM report only all year
001Sodium adsorption ratioAVERAGE report only all year
001Sodium adsorption ratioMAXIMUM report only all year
001Sodium, %DAILY MN report only all year
001Sodium, %QRTR AVG report only all year
001Sodium, %DAILY MX report only all year
001Potassium, total [as K]MINIMUM report only all year
001Potassium, total [as K]AVERAGE report only all year
001Potassium, total [as K]MAXIMUM report only all year
001Chloride [as Cl]DAILY MN report only all year
001Chloride [as Cl]QRTR AVG report only all year
001Chloride [as Cl]DAILY MX report only all year
001Fluoride, total [as F]MINIMUM report only all year
001Fluoride, total [as F]AVERAGE report only all year
001Fluoride, total [as F]MAXIMUM report only all year
001Silica, total [as SiO2]MINIMUM report only all year
001Silica, total [as SiO2]AVERAGE report only all year
001Silica, total [as SiO2]MAXIMUM report only all year
001Arsenic, total [as As]MINIMUM report only all year
001Arsenic, total [as As]AVERAGE report only all year
001Arsenic, total [as As]MAXIMUM report only all year
001Cadmium, total [as Cd]MINIMUM report only all year
001Cadmium, total [as Cd]AVERAGE report only all year
001Cadmium, total [as Cd]MAXIMUM report only all year
001Copper, total [as Cu]MINIMUM report only all year
001Copper, total [as Cu]AVERAGE report only all year
001Copper, total [as Cu]MAXIMUM report only all year
001Iron, total [as Fe]DAILY MN report only all year
001Iron, total [as Fe]MO AVG <= 1 mg/L all year
001Iron, total [as Fe]DAILY MX <= 1.5 mg/L all year
001Lead, total [as Pb]MINIMUM report only all year
001Lead, total [as Pb]AVERAGE report only all year
001Lead, total [as Pb]MAXIMUM report only all year
001Manganese, total [as Mn]DAILY MN report only all year
001Manganese, total [as Mn]MO AVG <= 1 mg/L all year
001Manganese, total [as Mn]DAILY MX <= 1.5 mg/L all year
001Nickel, total [as Ni]MINIMUM report only all year
001Nickel, total [as Ni]AVERAGE report only all year
001Nickel, total [as Ni]MAXIMUM report only all year
001Zinc, total [as Zn]MINIMUM report only all year
001Zinc, total [as Zn]AVERAGE report only all year
001Zinc, total [as Zn]MAXIMUM report only all year
001Aluminum, total [as Al]DAILY MN report only all year
001Aluminum, total [as Al]QRTR AVG report only all year
001Aluminum, total [as Al]DAILY MX report only all year
001Selenium, total [as Se]MINIMUM report only all year
001Selenium, total [as Se]AVERAGE report only all year
001Selenium, total [as Se]MAXIMUM 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
001Chlorine, total residualDAILY MN report only all year
001Chlorine, total residualMO AVG report only all year
001Chlorine, total residualDAILY MX <= 2.7 mg/L all year
001E. coliMOAV GEO report only all year
001E. coliDAILY MX report only all year
001HydroxideMINIMUM report only all year
001HydroxideAVERAGE report only all year
001HydroxideMAXIMUM report only all year
001Sulfates, total [as SO4]DAILY MN report only all year
001Sulfates, total [as SO4]QRTR AVG report only all year
001Sulfates, total [as SO4]DAILY MX report only all year
001Solids, total dissolved [TDS]MINIMUM report only all year
001Solids, total dissolved [TDS]AVERAGE report only all year
001Solids, total dissolved [TDS]MAXIMUM report only all year
001Duration of dischargeQT report only all year
001Turbidity, lab, NTUMINIMUM report only all year
001Turbidity, lab, NTUAVERAGE report only all year
001Turbidity, lab, NTUMAXIMUM report only all year
001Flow, totalQT 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