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Bath County Service Authority

Sewage treatment plant, Hot Springs, Virginia. NPDES permit VA0066303, in force until Jun 30, 2029. Last 12 months: over a limit once (last January 2026), 1 of 14 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 10 days after each period: form M1 monthly (18 values), form A1 yearly, form S1 twice a year
Last report on file
August 2026
Oct 2024 – Sep 2025
4 values over a limit, 2 required values missing, 3 of 14 reports late

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

Period endingParameterReportedLimitOver by
January 2026Oxygen, dissolved [DO], minimum6.8≥ 7 mg/L3%

Limits in force (23)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]minimum≥ 7 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 45 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 51 kg/dall year
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 77 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≤ 51 kg/dall year
Solids, total suspendedmaximum weekly average≤ 77 kg/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly average≤ 3.8 mg/Lall year
Nitrogen, ammonia total [as N]maximum weekly average≤ 5.1 mg/Lall year
Flow, in conduit or thru treatment plantmonthly average≤ .45 MGD (alert, not enforceable)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD) (alert, not enforceable)all year
Chlorine, total residualmonthly average≤ .03 mg/Lall year
Chlorine, total residualmaximum weekly average≤ .034 mg/Lall year
Chlorine, total residualminimum≥ .6 mg/Lall year
BOD, percent removal [total]monthly average minimum≥ 85 %all year
E. colimonthly geometric mean≤ 126 #/100mLall 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/VA0066303 · MCP: https://passage-data.com/mcp