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Mcmechen, City of

Sewage treatment plant, Mcmechen, West Virginia. NPDES permit WV0020141, in force until Jun 9, 2030. Last 12 months: over a limit 28 times (last August 2026), 4 required values missing, 2 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: form A monthly (29 values), form D yearly
Last report on file
August 2026
Oct 2024 – Sep 2025
28 values over a limit, 87 required values missing, 4 of 13 reports late

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

All 28 values over a limit
Period endingParameterReportedLimitOver by
October 2025BOD, 5-day, 20 deg. C, daily maximum177 mg/L≤ 60 mg/L195%
October 2025BOD, 5-day, 20 deg. C, monthly average118.7 lb/d≤ 75 lb/d58%
October 2025BOD, 5-day, 20 deg. C, monthly average177 mg/L≤ 30 mg/L490%
November 2025Copper, total recoverable, daily maximum.107 mg/L≤ .043 mg/L149%
November 2025Copper, total recoverable, monthly average.107 mg/L≤ .019 mg/L463%
January 2026BOD, 5-day, 20 deg. C, monthly average34.1 mg/L≤ 30 mg/L14%
January 2026Copper, total recoverable, monthly average.022 mg/L≤ .019 mg/L16%
January 2026Lead, total recoverable, monthly average.0431 mg/L≤ .023 mg/L87%
February 2026BOD, 5-day, 20 deg. C, monthly average32.4 mg/L≤ 30 mg/L8%
February 2026Chlorine, total residual, daily maximum.79 mg/L≤ .057 mg/L1286%
February 2026Chlorine, total residual, monthly average.64 mg/L≤ .028 mg/L2186%
February 2026Copper, total recoverable, daily maximum.32 mg/L≤ .043 mg/L644%
February 2026Copper, total recoverable, monthly average.32 mg/L≤ .019 mg/L1584%
February 2026Nitrogen, ammonia total [as N], monthly average16.1 mg/L≤ 15 mg/L7%
March 2026Copper, total recoverable, daily maximum.23 mg/L≤ .043 mg/L435%
March 2026Copper, total recoverable, monthly average.23 mg/L≤ .019 mg/L1111%
June 2026Copper, total recoverable, daily maximum206 mg/L≤ .043 mg/L—
June 2026Copper, total recoverable, monthly average206 mg/L≤ .019 mg/L—
June 2026Lead, total recoverable, daily maximum1.5 mg/L≤ .055 mg/L2627%
June 2026Lead, total recoverable, monthly average1.5 mg/L≤ .023 mg/L6422%
July 2026Copper, total recoverable, daily maximum29 mg/L≤ .043 mg/L67342%
July 2026Copper, total recoverable, monthly average29 mg/L≤ .019 mg/L—
July 2026Lead, total recoverable, daily maximum2.3 mg/L≤ .055 mg/L4082%
July 2026Lead, total recoverable, monthly average2.3 mg/L≤ .023 mg/L9900%
August 2026Copper, total recoverable, daily maximum29 mg/L≤ .043 mg/L67342%
August 2026Copper, total recoverable, monthly average29 mg/L≤ .019 mg/L—
August 2026Lead, total recoverable, daily maximum2.3 mg/L≤ .055 mg/L4082%
August 2026Lead, total recoverable, monthly average2.3 mg/L≤ .023 mg/L9900%

Limits in force (31)

ParameterStatisticLimitMonths
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 60 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 75 lb/dall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 150 lb/dall year
pHinstantaneous minimum≥ 6 SUall year
pHinstantaneous maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendeddaily maximum≤ 60 mg/Lall year
Solids, total suspendedmonthly average≤ 75 lb/dall year
Solids, total suspendeddaily maximum≤ 150 lb/dall year
Nitrogen, ammonia total [as N]monthly average≤ 15 mg/Lall year
Nitrogen, ammonia total [as N]daily maximum≤ 30 mg/Lall year
Nitrogen, ammonia total [as N]monthly average≤ 38 lb/dall year
Nitrogen, ammonia total [as N]daily maximum≤ 75 lb/dall year
Zinc, total recoverablemonthly averagereport only (mg/L)all year
Zinc, total recoverabledaily maximumreport only (mg/L)all year
Lead, total recoverablemonthly average≤ .023 mg/Lall year
Lead, total recoverabledaily maximum≤ .055 mg/Lall year
Copper, total recoverablemonthly average≤ .019 mg/Lall year
Copper, total recoverabledaily maximum≤ .043 mg/Lall year
Flow, in conduit or thru treatment plantminimumreport only (MGD)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
Chlorine, total residualmonthly average≤ .028 mg/Lall year
Chlorine, total residualdaily maximum≤ .057 mg/Lall year
BOD, 5 day percent removal, drymonthly average minimum≥ 85 %all year
BOD, 5 day percent removal, wetmonthly average minimumreport only (%)all year
Solids, suspended percent removal, drymonthly average minimum≥ 85 %all year
Solids, suspended percent removal, wetmonthly average minimumreport only (%)all year
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year
Coliform, fecal generaldaily maximum≤ 400 #/100mLall year

How strict are these limits?

Cited limits by parameter: West Virginia'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/WV0020141 · MCP: https://passage-data.com/mcp