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Valley City City Of

Sewage treatment plant, major discharger, Valley City, North Dakota. NPDES permit ND0020559, in force until Sep 30, 2029. Last 12 months: over a limit once (last June 2026), 2 required values missing, 1 of 17 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 31 days after each period: form A quarterly (28 values), form M yearly (50 values), form W quarterly (2 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
3 values over a limit, 5 required values missing, 2 of 17 reports late

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

Period endingParameterReportedLimit
June 2026pH, maximum10.09 SU≤ 9 SU

Limits in force (80)

ParameterStatisticLimitMonths
Temperature, water deg. centigradeweekly averagereport only (deg C)all year
Temperature, water deg. centigrade30-day averagereport only (deg C)all year
Temperature, water deg. centigradedaily maximumreport only (deg C)all year
Stream flow, instantaneousmonthly averagereport only (cfs)all year
Stream flow, instantaneousdaily maximumreport only (cfs)all year
BOD, 5-day, 20 deg. Cmonthly average≤ 25 mg/Lall year
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year
pHminimum≥ 6.5 SUall year
pHmaximum≤ 9 SUall year
pHminimumreport only (SU)all year
pHmaximumreport only (SU)all year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedweekly average≤ 45 mg/Lall year
Oil & Greasedaily maximum≤ 10 mg/Lall year
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year
Nitrogen, ammonia total [as N]weekly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]30-day averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Cyanide, total [as CN]daily minimumreport only (mg/L)all year
Cyanide, total [as CN]daily averagereport only (mg/L)all year
Cyanide, total [as CN]daily maximumreport only (mg/L)all year
Arsenic, total [as As]daily minimumreport only (mg/L)all year
Arsenic, total [as As]daily averagereport only (mg/L)all year
Arsenic, total [as As]daily maximumreport only (mg/L)all year
Beryllium, total [as Be]daily minimumreport only (mg/L)all year
Beryllium, total [as Be]daily averagereport only (mg/L)all year
Beryllium, total [as Be]daily maximumreport only (mg/L)all year
Cadmium, total [as Cd]daily minimumreport only (mg/L)all year
Cadmium, total [as Cd]daily averagereport only (mg/L)all year
Cadmium, total [as Cd]daily maximumreport only (mg/L)all year
Chromium, total [as Cr]daily minimumreport only (mg/L)all year
Chromium, total [as Cr]daily averagereport only (mg/L)all year
Chromium, total [as Cr]daily maximumreport only (mg/L)all year
Chromium, total [as Cr]30-day averagereport only (lb/d)all year
Chromium, total [as Cr]daily maximumreport only (lb/d)all year
Copper, total [as Cu]daily minimumreport only (mg/L)all year
Copper, total [as Cu]daily averagereport only (mg/L)all year
Copper, total [as Cu]daily maximumreport only (mg/L)all year
Lead, total [as Pb]daily minimumreport only (mg/L)all year
Lead, total [as Pb]daily averagereport only (mg/L)all year
Lead, total [as Pb]daily maximumreport only (mg/L)all year
Thallium, total [as Tl]daily minimumreport only (mg/L)all year
Thallium, total [as Tl]daily averagereport only (mg/L)all year
Thallium, total [as Tl]daily maximumreport only (mg/L)all year
Nickel, total [as Ni]daily minimumreport only (mg/L)all year
Nickel, total [as Ni]daily averagereport only (mg/L)all year
Nickel, total [as Ni]daily maximumreport only (mg/L)all year
Silver, total [as Ag]daily minimumreport only (mg/L)all year
Silver, total [as Ag]daily averagereport only (mg/L)all year
Silver, total [as Ag]daily maximumreport only (mg/L)all year
Zinc, total [as Zn]daily minimumreport only (mg/L)all year
Zinc, total [as Zn]daily averagereport only (mg/L)all year
Zinc, total [as Zn]daily maximumreport only (mg/L)all year
Antimony, total [as Sb]daily minimumreport only (mg/L)all year
Antimony, total [as Sb]daily averagereport only (mg/L)all year
Antimony, total [as Sb]daily maximumreport only (mg/L)all year
Selenium, total [as Se]daily minimumreport only (mg/L)all year
Selenium, total [as Se]daily averagereport only (mg/L)all year
Selenium, total [as Se]daily maximumreport only (mg/L)all year
Total phenolsdaily minimumreport only (ug/L)all year
Total phenolsdaily averagereport only (ug/L)all year
Total phenolsdaily maximumreport only (ug/L)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
E. colimonthly geometric mean≤ 126 #/100mLApr–Oct
E. colidaily maximum≤ 409 #/100mLApr–Oct
Flow, totalmonthly totalreport only (Mgal)all year
Flow, totaltotalreport only (Mgal)all year
Mercury, total [as Hg]daily minimumreport only (mg/L)all year
Mercury, total [as Hg]daily averagereport only (mg/L)all year
Mercury, total [as Hg]daily maximumreport only (mg/L)all year
Hardness, tot calc. [Ca, Mg, Fe] as CaC03daily minimumreport only (mg/L)all year
Hardness, tot calc. [Ca, Mg, Fe] as CaC03daily averagereport only (mg/L)all year
Hardness, tot calc. [Ca, Mg, Fe] as CaC03daily maximumreport only (mg/L)all year
Oil and grease visualtotalreport only (N=0;Y=1)all year
Toxic Units Static Renewal 48Hr Acute Ceriodaphnia dubiamaximum≤ 1 tox acuteall year
TU Static Renewal 96Hr Acute Pimphales promelasmaximum≤ 1 tox acuteall year

How strict are these limits?

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/ND0020559 · MCP: https://passage-data.com/mcp