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Massanutten Water and Sewer Authority

Sewerage Systems, major discharger, Mcgaheysville, Virginia. NPDES permit VA0024732, in force until Dec 31, 2030. Last 12 months: over a limit once (last January 2026), 6 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 10 days after each period: form M1 monthly (16 values), form A1 yearly, form Q1 quarterly
Last report on file
August 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 0 of 13 reports late

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

Period endingParameterReportedLimitOver by
January 2026Nitrogen, ammonia total [as N], maximum weekly average.84≤ .37 mg/L127%

Limits in force (26)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]minimum≥ 7.5 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 10 mg/Lall year
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 15 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 57 kg/dall year
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 85 kg/dall year
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedmaximum weekly average≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 170 kg/dall year
Solids, total suspendedmaximum weekly average≤ 260 kg/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly average≤ .29 mg/Lall year
Nitrogen, ammonia total [as N]maximum weekly average≤ .37 mg/Lall year
Di[2-ethylhexyl] phthalate [DEHP]monthly averagereport only (ug/L)all year
Di[2-ethylhexyl] phthalate [DEHP]maximum weekly averagereport only (ug/L)all year
Di-n-butyl phthalatemonthly averagereport only (ug/L)all year
Di-n-butyl phthalatemaximum weekly averagereport only (ug/L)all year
Flow, in conduit or thru treatment plantmonthly average≤ 1.5 MGD (alert, not enforceable)all year
Flow, in conduit or thru treatment plantmaximumreport only (MGD) (alert, not enforceable)all year
BOD, percent removal [total]monthly average minimum≥ 85 %all year
E. coligeometric mean≤ 126 #/100mLall year
Nitrogen, Total As Nannual average≤ 4 mg/Lall year
Phosphorus, Total As Pannual average≤ .3 mg/Lall year
Solids, suspended percent removalmonthly average minimum≥ 85 %all year

How strict are these limits?

Cited limits by parameter: 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/VA0024732 · MCP: https://passage-data.com/mcp