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Valley City Membrane WTP

Water Supply, Valley City, North Dakota. NPDES permit ND0026395, in force until Jun 30, 2031. Last 12 months: over a limit once (last June 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 31 days after each period: outfall 001 form A quarterly, outfall 001 form G yearly, outfall 001 form M quarterly, outfall 002 form A quarterly, outfall 002 form G quarterly, outfall 002 form M quarterly
Last report on file
June 2026
Oct 2024 – Sep 2025
7 values over a limit, 37 required values missing, 9 of 16 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingParameterReportedLimitOver by
June 2026Solids, total suspended, daily maximum124 mg/L≤ 90 mg/L38%

Limits in force (214)

ParameterStatisticLimitMonthsOutfall
Stream flow, instantaneousquarterly averagereport only (cfs)all year001
Stream flow, instantaneousdaily maximumreport only (cfs)all year001
Conductivitydaily minimumreport only (umho/cm)all year001
Conductivityquarterly averagereport only (umho/cm)all year001
Conductivitydaily maximumreport only (umho/cm)all year001
Conductivitydaily minimumreport only (umho/cm)all year001
Conductivityquarterly averagereport only (umho/cm)all year001
Conductivitydaily maximumreport only (umho/cm)all year001
pHminimum≥ 6.5 SUall year001
pHmaximum≤ 9 SUall year001
Alkalinity, total [as CaCO3]daily minimumreport only (mg/L) (alert, not enforceable)all year001
Alkalinity, total [as CaCO3]annual averagereport only (mg/L) (alert, not enforceable)all year001
Alkalinity, total [as CaCO3]daily maximumreport only (mg/L) (alert, not enforceable)all year001
Bicarbonate ion- [as HCO3]daily minimumreport only (mg/L) (alert, not enforceable)all year001
Bicarbonate ion- [as HCO3]annual averagereport only (mg/L) (alert, not enforceable)all year001
Bicarbonate ion- [as HCO3]daily maximumreport only (mg/L) (alert, not enforceable)all year001
Carbonate ion- [as CO3]daily minimumreport only (mg/L) (alert, not enforceable)all year001
Carbonate ion- [as CO3]annual averagereport only (mg/L) (alert, not enforceable)all year001
Carbonate ion- [as CO3]daily maximumreport only (mg/L) (alert, not enforceable)all year001
Solids, total suspendeddaily minimumreport only (mg/L)all year001
Solids, total suspendedquarterly averagereport only (mg/L)all year001
Solids, total suspendeddaily maximum≤ 90 mg/Lall year001
Nitrite + Nitrate total [as N]daily minimumreport only (mg/L) (alert, not enforceable)all year001
Nitrite + Nitrate total [as N]annual averagereport only (mg/L) (alert, not enforceable)all year001
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L) (alert, not enforceable)all year001
Phosphorus, total [as P]daily minimumreport only (mg/L) (alert, not enforceable)all year001
Phosphorus, total [as P]annual averagereport only (mg/L) (alert, not enforceable)all year001
Phosphorus, total [as P]daily maximumreport only (mg/L) (alert, not enforceable)all year001
Hardness, total [as CaCO3]daily minimumreport only (mg/L)all year001
Hardness, total [as CaCO3]annual averagereport only (mg/L)all year001
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year001
Hardness, total [as CaCO3]daily minimumreport only (mg/L)all year001
Hardness, total [as CaCO3]quarterly averagereport only (mg/L)all year001
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year001
Calcium, total [as Ca]daily minimumreport only (mg/L) (alert, not enforceable)all year001
Calcium, total [as Ca]annual averagereport only (mg/L) (alert, not enforceable)all year001
Calcium, total [as Ca]daily maximumreport only (mg/L) (alert, not enforceable)all year001
Magnesium, total [as Mg]daily minimumreport only (mg/L) (alert, not enforceable)all year001
Magnesium, total [as Mg]annual averagereport only (mg/L) (alert, not enforceable)all year001
Magnesium, total [as Mg]daily maximumreport only (mg/L) (alert, not enforceable)all year001
Sodium, total [as Na]daily minimumreport only (mg/L) (alert, not enforceable)all year001
Sodium, total [as Na]annual averagereport only (mg/L) (alert, not enforceable)all year001
Sodium, total [as Na]daily maximumreport only (mg/L) (alert, not enforceable)all year001
Sodium adsorption ratiodaily minimumreport only (Ratio) (alert, not enforceable)all year001
Sodium adsorption ratioannual averagereport only (Ratio) (alert, not enforceable)all year001
Sodium adsorption ratiodaily maximumreport only (Ratio) (alert, not enforceable)all year001
Sodium, %daily minimumreport only (%) (alert, not enforceable)all year001
Sodium, %annual averagereport only (%) (alert, not enforceable)all year001
Sodium, %daily maximumreport only (%) (alert, not enforceable)all year001
Potassium, total [as K]daily minimumreport only (mg/L) (alert, not enforceable)all year001
Potassium, total [as K]annual averagereport only (mg/L) (alert, not enforceable)all year001
Potassium, total [as K]daily maximumreport only (mg/L) (alert, not enforceable)all year001
Chloride [as Cl]daily minimumreport only (mg/L) (alert, not enforceable)all year001
Chloride [as Cl]annual averagereport only (mg/L) (alert, not enforceable)all year001
Chloride [as Cl]daily maximumreport only (mg/L) (alert, not enforceable)all year001
Sulfate, total [as SO4]daily minimumreport only (mg/L)all year001
Sulfate, total [as SO4]quarterly averagereport only (mg/L)all year001
Sulfate, total [as SO4]daily maximumreport only (mg/L)all year001
Sulfate, total [as SO4]daily minimumreport only (mg/L)all year001
Sulfate, total [as SO4]quarterly averagereport only (mg/L)all year001
Sulfate, total [as SO4]daily maximumreport only (mg/L)all year001
Fluoride, total [as F]daily minimumreport only (mg/L) (alert, not enforceable)all year001
Fluoride, total [as F]annual averagereport only (mg/L) (alert, not enforceable)all year001
Fluoride, total [as F]daily maximumreport only (mg/L) (alert, not enforceable)all year001
Silica, total [as SiO2]daily minimumreport only (mg/L) (alert, not enforceable)all year001
Silica, total [as SiO2]annual averagereport only (mg/L) (alert, not enforceable)all year001
Silica, total [as SiO2]daily maximumreport only (mg/L) (alert, not enforceable)all year001
Arsenic, total [as As]daily minimumreport only (ug/L)all year001
Arsenic, total [as As]quarterly averagereport only (ug/L)all year001
Arsenic, total [as As]daily maximumreport only (ug/L)all year001
Cadmium, total [as Cd]daily minimumreport only (ug/L)all year001
Cadmium, total [as Cd]quarterly averagereport only (ug/L)all year001
Cadmium, total [as Cd]daily maximumreport only (ug/L)all year001
Copper, total [as Cu]daily minimumreport only (ug/L)all year001
Copper, total [as Cu]quarterly averagereport only (ug/L)all year001
Copper, total [as Cu]daily maximumreport only (ug/L)all year001
Iron, total [as Fe]daily minimumreport only (mg/L) (alert, not enforceable)all year001
Iron, total [as Fe]annual averagereport only (mg/L) (alert, not enforceable)all year001
Iron, total [as Fe]daily maximumreport only (mg/L) (alert, not enforceable)all year001
Lead, total [as Pb]daily minimumreport only (ug/L)all year001
Lead, total [as Pb]quarterly averagereport only (ug/L)all year001
Lead, total [as Pb]daily maximumreport only (ug/L)all year001
Manganese, total [as Mn]daily minimumreport only (mg/L) (alert, not enforceable)all year001
Manganese, total [as Mn]annual averagereport only (mg/L) (alert, not enforceable)all year001
Manganese, total [as Mn]daily maximumreport only (mg/L) (alert, not enforceable)all year001
Nickel, total [as Ni]daily minimumreport only (ug/L)all year001
Nickel, total [as Ni]quarterly averagereport only (ug/L)all year001
Nickel, total [as Ni]daily maximumreport only (ug/L)all year001
Zinc, total [as Zn]daily minimumreport only (ug/L)all year001
Zinc, total [as Zn]quarterly averagereport only (ug/L)all year001
Zinc, total [as Zn]daily maximumreport only (ug/L)all year001
Selenium, total [as Se]daily minimumreport only (ug/L)all year001
Selenium, total [as Se]quarterly averagereport only (ug/L)all year001
Selenium, total [as Se]daily maximumreport only (ug/L)all year001
Flow, in conduit or thru treatment plantquarterly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Hydroxidedaily minimumreport only (mg/L) (alert, not enforceable)all year001
Hydroxideannual averagereport only (mg/L) (alert, not enforceable)all year001
Hydroxidedaily maximumreport only (mg/L) (alert, not enforceable)all year001
Solids, total dissolved [TDS]daily minimumreport only (mg/L)all year001
Solids, total dissolved [TDS]annual averagereport only (mg/L)all year001
Solids, total dissolved [TDS]daily maximumreport only (mg/L)all year001
Duration of dischargetotalreport only (d)all year001
Turbidity, lab, NTUdaily minimumreport only (NTU) (alert, not enforceable)all year001
Turbidity, lab, NTUannual averagereport only (NTU) (alert, not enforceable)all year001
Turbidity, lab, NTUdaily maximumreport only (NTU) (alert, not enforceable)all year001
Flow, totalquarterly totalreport only (Mgal/qtr)all year001
Stream flow, instantaneousquarterly averagereport only (cfs)all year002
Stream flow, instantaneousdaily maximumreport only (cfs)all year002
Conductivitydaily minimumreport only (umho/cm)all year002
Conductivityquarterly averagereport only (umho/cm)all year002
Conductivitydaily maximumreport only (umho/cm)all year002
Conductivitydaily minimumreport only (umho/cm)all year002
Conductivityquarterly averagereport only (umho/cm)all year002
Conductivitydaily maximumreport only (umho/cm)all year002
pHminimum≥ 6.5 SUall year002
pHmaximum≤ 9 SUall year002
Alkalinity, total [as CaCO3]daily minimumreport only (mg/L) (alert, not enforceable)all year002
Alkalinity, total [as CaCO3]quarterly averagereport only (mg/L) (alert, not enforceable)all year002
Alkalinity, total [as CaCO3]daily maximumreport only (mg/L) (alert, not enforceable)all year002
Bicarbonate ion- [as HCO3]daily minimumreport only (mg/L) (alert, not enforceable)all year002
Bicarbonate ion- [as HCO3]quarterly averagereport only (mg/L) (alert, not enforceable)all year002
Bicarbonate ion- [as HCO3]daily maximumreport only (mg/L) (alert, not enforceable)all year002
Carbonate ion- [as CO3]daily minimumreport only (mg/L) (alert, not enforceable)all year002
Carbonate ion- [as CO3]quarterly averagereport only (mg/L) (alert, not enforceable)all year002
Carbonate ion- [as CO3]daily maximumreport only (mg/L) (alert, not enforceable)all year002
Solids, total suspendeddaily minimumreport only (mg/L)all year002
Solids, total suspendedquarterly averagereport only (mg/L)all year002
Solids, total suspendeddaily maximum≤ 90 mg/Lall year002
Nitrite + Nitrate total [as N]daily minimumreport only (mg/L) (alert, not enforceable)all year002
Nitrite + Nitrate total [as N]quarterly averagereport only (mg/L) (alert, not enforceable)all year002
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L) (alert, not enforceable)all year002
Phosphorus, total [as P]daily minimumreport only (mg/L) (alert, not enforceable)all year002
Phosphorus, total [as P]quarterly averagereport only (mg/L) (alert, not enforceable)all year002
Phosphorus, total [as P]daily maximumreport only (mg/L) (alert, not enforceable)all year002
Hardness, total [as CaCO3]daily minimumreport only (mg/L)all year002
Hardness, total [as CaCO3]quarterly averagereport only (mg/L)all year002
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year002
Hardness, total [as CaCO3]daily minimumreport only (mg/L)all year002
Hardness, total [as CaCO3]quarterly averagereport only (mg/L)all year002
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year002
Calcium, total [as Ca]daily minimumreport only (mg/L) (alert, not enforceable)all year002
Calcium, total [as Ca]quarterly averagereport only (mg/L) (alert, not enforceable)all year002
Calcium, total [as Ca]daily maximumreport only (mg/L) (alert, not enforceable)all year002
Magnesium, total [as Mg]daily minimumreport only (mg/L) (alert, not enforceable)all year002
Magnesium, total [as Mg]quarterly averagereport only (mg/L) (alert, not enforceable)all year002
Magnesium, total [as Mg]daily maximumreport only (mg/L) (alert, not enforceable)all year002
Sodium, total [as Na]daily minimumreport only (mg/L) (alert, not enforceable)all year002
Sodium, total [as Na]quarterly averagereport only (mg/L) (alert, not enforceable)all year002
Sodium, total [as Na]daily maximumreport only (mg/L) (alert, not enforceable)all year002
Sodium adsorption ratiodaily minimumreport only (Ratio) (alert, not enforceable)all year002
Sodium adsorption ratioquarterly averagereport only (Ratio) (alert, not enforceable)all year002
Sodium adsorption ratiodaily maximumreport only (Ratio) (alert, not enforceable)all year002
Sodium, %daily minimumreport only (%) (alert, not enforceable)all year002
Sodium, %quarterly averagereport only (%) (alert, not enforceable)all year002
Sodium, %daily maximumreport only (%) (alert, not enforceable)all year002
Potassium, total [as K]daily minimumreport only (mg/L) (alert, not enforceable)all year002
Potassium, total [as K]quarterly averagereport only (mg/L) (alert, not enforceable)all year002
Potassium, total [as K]daily maximumreport only (mg/L) (alert, not enforceable)all year002
Chloride [as Cl]daily minimumreport only (mg/L) (alert, not enforceable)all year002
Chloride [as Cl]quarterly averagereport only (mg/L) (alert, not enforceable)all year002
Chloride [as Cl]daily maximumreport only (mg/L) (alert, not enforceable)all year002
Sulfate, total [as SO4]daily minimumreport only (mg/L)all year002
Sulfate, total [as SO4]quarterly averagereport only (mg/L)all year002
Sulfate, total [as SO4]daily maximumreport only (mg/L)all year002
Sulfate, total [as SO4]daily minimumreport only (mg/L)all year002
Sulfate, total [as SO4]quarterly averagereport only (mg/L)all year002
Sulfate, total [as SO4]daily maximumreport only (mg/L)all year002
Fluoride, total [as F]daily minimumreport only (mg/L) (alert, not enforceable)all year002
Fluoride, total [as F]quarterly averagereport only (mg/L) (alert, not enforceable)all year002
Fluoride, total [as F]daily maximumreport only (mg/L) (alert, not enforceable)all year002
Silica, total [as SiO2]daily minimumreport only (mg/L) (alert, not enforceable)all year002
Silica, total [as SiO2]quarterly averagereport only (mg/L) (alert, not enforceable)all year002
Silica, total [as SiO2]daily maximumreport only (mg/L) (alert, not enforceable)all year002
Arsenic, total [as As]daily minimumreport only (ug/L)all year002
Arsenic, total [as As]quarterly averagereport only (ug/L)all year002
Arsenic, total [as As]daily maximumreport only (ug/L)all year002
Cadmium, total [as Cd]daily minimumreport only (ug/L)all year002
Cadmium, total [as Cd]quarterly averagereport only (ug/L)all year002
Cadmium, total [as Cd]daily maximumreport only (ug/L)all year002
Copper, total [as Cu]daily minimumreport only (ug/L)all year002
Copper, total [as Cu]quarterly averagereport only (ug/L)all year002
Copper, total [as Cu]daily maximumreport only (ug/L)all year002
Iron, total [as Fe]daily minimumreport only (mg/L) (alert, not enforceable)all year002
Iron, total [as Fe]quarterly averagereport only (mg/L) (alert, not enforceable)all year002
Iron, total [as Fe]daily maximumreport only (mg/L) (alert, not enforceable)all year002
Lead, total [as Pb]daily minimumreport only (ug/L)all year002
Lead, total [as Pb]quarterly averagereport only (ug/L)all year002
Lead, total [as Pb]daily maximumreport only (ug/L)all year002
Manganese, total [as Mn]daily minimumreport only (mg/L) (alert, not enforceable)all year002
Manganese, total [as Mn]quarterly averagereport only (mg/L) (alert, not enforceable)all year002
Manganese, total [as Mn]daily maximumreport only (mg/L) (alert, not enforceable)all year002
Nickel, total [as Ni]daily minimumreport only (ug/L)all year002
Nickel, total [as Ni]quarterly averagereport only (ug/L)all year002
Nickel, total [as Ni]daily maximumreport only (ug/L)all year002
Zinc, total [as Zn]daily minimumreport only (ug/L)all year002
Zinc, total [as Zn]quarterly averagereport only (ug/L)all year002
Zinc, total [as Zn]daily maximumreport only (ug/L)all year002
Selenium, total [as Se]daily minimumreport only (ug/L)all year002
Selenium, total [as Se]quarterly averagereport only (ug/L)all year002
Selenium, total [as Se]daily maximumreport only (ug/L)all year002
Flow, in conduit or thru treatment plantquarterly averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
Hydroxidedaily minimumreport only (mg/L) (alert, not enforceable)all year002
Hydroxidequarterly averagereport only (mg/L) (alert, not enforceable)all year002
Hydroxidedaily maximumreport only (mg/L) (alert, not enforceable)all year002
Solids, total dissolved [TDS]daily minimumreport only (mg/L)all year002
Solids, total dissolved [TDS]quarterly averagereport only (mg/L)all year002
Solids, total dissolved [TDS]daily maximumreport only (mg/L)all year002
Duration of dischargetotalreport only (d)all year002
Turbidity, lab, NTUdaily minimumreport only (NTU) (alert, not enforceable)all year002
Turbidity, lab, NTUquarterly averagereport only (NTU) (alert, not enforceable)all year002
Turbidity, lab, NTUdaily maximumreport only (NTU) (alert, not enforceable)all year002
Flow, totalquarterly totalreport only (Mgal/qtr)all year002

How strict are these limits?

Cited limits by parameter: North Dakota's rules and the federal ones.

Same industry: the 8 Water Supply permits in North Dakota.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/ND0026395 · MCP: https://passage-data.com/mcp