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Storey County Public Works

Sewage treatment plant, Virginia City, Nevada. NPDES permit NV0020451 expired Sep 30, 2026; its limits still apply. Last 12 months: over a limit 4 times (last March 2026), 11 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form A quarterly (14 values), outfall 01D form A quarterly (3 values), outfall INF form A quarterly (6 values), outfall 001 form Y yearly
Last report on file
June 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 0 of 37 reports late

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

Period endingOutfallParameterReportedLimitOver by
October 2025INFFlow rate, daily maximum1.353 MGD≤ .3 MGD351%
December 2025001Hydrocarbons, total petroleum, daily maximum1.3 mg/L≤ 1 mg/L30%
March 2026001Cyanide, total [as CN], 30-day average26 ug/L≤ 10 ug/L160%
March 2026001Cyanide, total [as CN], daily maximum26 ug/L≤ 10 ug/L160%

Limits in force (70)

ParameterStatisticLimitMonthsOutfall
BOD, 5-day30-day average≤ 30 mg/Lall year001
BOD, 5-day30-day average≤ 30 mg/Lall year001
BOD, 5-daydaily maximum≤ 45 mg/Lall year001
BOD, 5-daydaily maximum≤ 45 mg/Lall year001
Solids, total suspended30-day average≤ 30 mg/Lall year001
Solids, total suspended30-day average≤ 30 mg/Lall year001
Solids, total suspendeddaily maximum≤ 45 mg/Lall year001
Solids, total suspendeddaily maximum≤ 45 mg/Lall year001
Nitrogen, total [as N]7-day averagereport only (mg/L)all year001
Nitrogen, total [as N]7-day averagereport only (mg/L)all year001
Nitrogen, total [as N]daily maximum≤ 10 mg/Lall year001
Nitrogen, total [as N]daily maximum≤ 10 mg/Lall year001
Cyanide, total [as CN]30-day average≤ 10 ug/Lall year001
Cyanide, total [as CN]30-day average≤ 10 ug/Lall year001
Cyanide, total [as CN]daily maximum≤ 10 ug/Lall year001
Cyanide, total [as CN]daily maximum≤ 10 ug/Lall year001
Fluoride, total [as F]daily maximumreport only (mg/L)all year001
Arsenic, total recoverabledaily maximumreport only (mg/L)all year001
Arsenic, total recoverabledaily maximumreport only (mg/L)all year001
Selenium, total recoverabledaily maximumreport only (mg/L)all year001
Selenium, total recoverabledaily maximumreport only (mg/L)all year001
Boron, total recoverabledaily maximumreport only (mg/L)all year001
Boron, total recoverabledaily maximumreport only (mg/L)all year001
Barium, total recoverabledaily maximumreport only (mg/L)all year001
Barium, total recoverabledaily maximumreport only (mg/L)all year001
Silver total recoverabledaily maximumreport only (mg/L)all year001
Zinc, total recoverabledaily maximumreport only (mg/L)all year001
Zinc, total recoverabledaily maximumreport only (mg/L)all year001
Cadmium, total recoverabledaily maximumreport only (mg/L)all year001
Cadmium, total recoverabledaily maximumreport only (mg/L)all year001
Lead, total recoverabledaily maximumreport only (mg/L)all year001
Lead, total recoverabledaily maximumreport only (mg/L)all year001
Chromium, total recoverabledaily maximumreport only (mg/L)all year001
Chromium, total recoverabledaily maximumreport only (mg/L)all year001
Copper, total recoverabledaily maximumreport only (mg/L)all year001
Copper, total recoverabledaily maximumreport only (mg/L)all year001
pH, maximumdaily maximum≤ 9 SUall year001
pH, maximumdaily maximum≤ 9 SUall year001
pH, minimumdaily minimum≥ 6 SUall year001
pH, minimumdaily minimum≥ 6 SUall year001
Coliform, fecal, colony forming units30-day geometric mean≤ 200 CFU/100mLall year001
Coliform, fecal, colony forming units30-day geometric mean≤ 200 CFU/100mLall year001
Coliform, fecal, colony forming units30-day geometric mean≤ 200 CFU/100mLall year001
Coliform, fecal, colony forming unitsmaximum single sample≤ 400 CFU/100mLall year001
Coliform, fecal, colony forming unitsmaximum single sample≤ 400 CFU/100mLall year001
Coliform, fecal, colony forming unitsmaximum single sample≤ 400 CFU/100mLall year001
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year001
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year001
Solids, suspended percent removalmonthly average minimum≥ 85 %all year001
Solids, suspended percent removalmonthly average minimum≥ 85 %all year001
Hydrocarbons, total petroleumdaily maximum≤ 1 mg/Lall year001
Hydrocarbons, total petroleumdaily maximum≤ 1 mg/Lall year001
Water Elevationdaily maximumreport only (ft)all year01D
Water Elevationdaily maximumreport only (ft)all year01D
Outfall observation,visual, y/n responseevent totalreport only (N=0;Y=1)all year01D
Outfall observation,visual, y/n responseevent totalreport only (N=0;Y=1)all year01D
Outfall observation,visual, y/n responsepositive resultsreport only (N=0;Y=1)all year01D
Outfall observation,visual, y/n responsepositive resultsreport only (N=0;Y=1)all year01D
Flow rate30-day average≤ .2 MGDall yearINF
Flow rate30-day average≤ .2 MGDall yearINF
Flow ratedaily maximum≤ .3 MGDall yearINF
Flow ratedaily maximum≤ .3 MGDall yearINF
BOD, 5-day30-day averagereport only (mg/L)all yearINF
BOD, 5-day30-day averagereport only (mg/L)all yearINF
BOD, 5-daydaily maximumreport only (mg/L)all yearINF
BOD, 5-daydaily maximumreport only (mg/L)all yearINF
Solids, total suspended30-day averagereport only (mg/L)all yearINF
Solids, total suspended30-day averagereport only (mg/L)all yearINF
Solids, total suspendeddaily maximumreport only (mg/L)all yearINF
Solids, total suspendeddaily maximumreport only (mg/L)all yearINF

How strict are these limits?

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

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/NV0020451 · MCP: https://passage-data.com/mcp