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Sanitary Board of the City of Charleston

Sewage treatment plant, major discharger, Charleston, West Virginia. NPDES permit WV0023205, in force until Mar 8, 2027. Last 12 months: over a limit 4 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: outfall 001 form A monthly (25 values), outfall 001 form B quarterly (8 values), outfall 001 form C twice a year, outfall 001 form D yearly, outfall 079 form C twice a year, outfall 080 form C twice a year
Renewal application due
Sep 9, 2026 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
3 values over a limit, 0 required values missing, 0 of 23 reports late

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

Period endingParameterReportedLimitOver by
October 2025pH, instantaneous minimum5.9 SU≥ 6 SU—
April 2026pH, instantaneous minimum5.8 SU≥ 6 SU—
June 2026pH, instantaneous minimum5.9 SU≥ 6 SU—
August 2026Coliform, fecal general, daily maximum1040 #/100mL≤ 400 #/100mL160%

Limits in force (87)

ParameterStatisticLimitMonthsOutfall
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/LJan, Feb, Mar, Apr, Nov, Dec001
BOD, 5-day, 20 deg. Cmonthly average≤ 20 mg/LMay–Oct001
BOD, 5-day, 20 deg. C7-day average≤ 45 mg/LJan, Feb, Mar, Apr, Nov, Dec001
BOD, 5-day, 20 deg. C7-day average≤ 30 mg/LMay–Oct001
BOD, 5-day, 20 deg. Cmonthly average≤ 5254 lb/dJan, Feb, Mar, Apr, Nov, Dec001
BOD, 5-day, 20 deg. Cmonthly average≤ 3503 lb/dMay–Oct001
BOD, 5-day, 20 deg. C7-day average≤ 7881 lb/dJan, Feb, Mar, Apr, Nov, Dec001
BOD, 5-day, 20 deg. C7-day average≤ 5254 lb/dMay–Oct001
pHinstantaneous minimum≥ 6 SUall year001
pHinstantaneous maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspended7-day average≤ 45 mg/Lall year001
Solids, total suspendedmonthly average≤ 5254 lb/dall year001
Solids, total suspended7-day average≤ 7881 lb/dall year001
Nitrogen, ammonia total [as N]monthly average≤ 17.5 mg/Lall year001
Nitrogen, ammonia total [as N]daily maximum≤ 30 mg/Lall year001
Nitrogen, ammonia total [as N]monthly average≤ 3065 lb/dall year001
Nitrogen, ammonia total [as N]daily maximum≤ 5254 lb/dall year001
Cyanide, weak acid, dissociablemonthly average≤ .02 mg/Lall year001
Cyanide, weak acid, dissociabledaily maximum≤ .051 mg/Lall year001
Arsenic, total [as As]monthly averagereport only (mg/L)all year001
Arsenic, total [as As]daily maximumreport only (mg/L)all year001
Chromium, hexavalent [as Cr]monthly averagereport only (mg/L)all year001
Chromium, hexavalent [as Cr]daily maximumreport only (mg/L)all year001
Nickel, total recoverablemonthly averagereport only (mg/L)all year001
Nickel, total recoverabledaily maximumreport only (mg/L)all year001
Silver total recoverablemonthly averagereport only (mg/L)all year001
Silver total recoverabledaily maximumreport only (mg/L)all year001
Zinc, total recoverablemonthly averagereport only (mg/L)all year001
Zinc, total recoverablemonthly averagereport 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 recoverablemonthly averagereport only (mg/L)all year001
Cadmium, total recoverabledaily maximumreport only (mg/L)all year001
Lead, total recoverablemonthly averagereport only (mg/L)all year001
Lead, total recoverabledaily maximumreport only (mg/L)all year001
Copper, total recoverablemonthly averagereport only (mg/L)all year001
Copper, total recoverablemonthly averagereport only (mg/L)all year001
Copper, total recoverabledaily maximumreport only (mg/L)all year001
Copper, total recoverabledaily maximumreport only (mg/L)all year001
Flow, in conduit or thru treatment plantminimumreport only (MGD)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
BOD, 5 day percent removal, drymonthly average minimum≥ 85 %all year001
BOD, 5 day percent removal, wetmonthly average minimumreport only (%)all year001
Solids, suspended percent removal, drymonthly average minimum≥ 85 %all year001
Solids, suspended percent removal, wetmonthly average minimumreport only (%)all year001
Toxicity [chronic], Ceriodaphnia dubiamonthly averagereport only (tox chronic)all year001
Toxicity [chronic], Ceriodaphnia dubiadaily maximumreport only (tox chronic)all year001
Toxicity [chronic], Pimephales promelas [Fathead Minnow]monthly averagereport only (tox chronic)all year001
Toxicity [chronic], Pimephales promelas [Fathead Minnow]daily maximumreport only (tox chronic)all year001
Mercury, total [as Hg]monthly averagereport only (ug/L)all year001
Mercury, total [as Hg]daily maximumreport only (ug/L)all year001
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year001
Coliform, fecal generaldaily maximum≤ 400 #/100mLall year001
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year079
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year079
pHinstantaneous minimumreport only (SU)all year079
pHinstantaneous maximumreport only (SU)all year079
Solids, total suspendedmonthly averagereport only (mg/L)all year079
Solids, total suspendeddaily maximumreport only (mg/L)all year079
Oil and grease, hexane extr methodmonthly averagereport only (mg/L)all year079
Oil and grease, hexane extr methoddaily maximumreport only (mg/L)all year079
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year079
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year079
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year079
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year079
Coliform, fecal generalmonthly geometric meanreport only (#/100mL)all year079
Coliform, fecal generaldaily maximumreport only (#/100mL)all year079
Chemical Oxygen Demand [COD]monthly averagereport only (mg/L)all year079
Chemical Oxygen Demand [COD]daily maximumreport only (mg/L)all year079
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year080
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year080
pHinstantaneous minimumreport only (SU)all year080
pHinstantaneous maximumreport only (SU)all year080
Solids, total suspendedmonthly averagereport only (mg/L)all year080
Solids, total suspendeddaily maximumreport only (mg/L)all year080
Oil and grease, hexane extr methodmonthly averagereport only (mg/L)all year080
Oil and grease, hexane extr methoddaily maximumreport only (mg/L)all year080
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year080
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year080
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year080
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year080
Coliform, fecal generalmonthly geometric meanreport only (#/100mL)all year080
Coliform, fecal generaldaily maximumreport only (#/100mL)all year080
Chemical Oxygen Demand [COD]monthly averagereport only (mg/L)all year080
Chemical Oxygen Demand [COD]daily maximumreport only (mg/L)all year080

How strict are these limits?

Cited limits by parameter: West Virginia'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/WV0023205 · MCP: https://passage-data.com/mcp