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Town of Danville

Sewage treatment plant, Danville, Vermont. NPDES permit VT0100633 expired Sep 30, 2021; its limits still apply. Last 12 months: no values over a limit, 17 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (29 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 4 of 12 reports late

Limits in force (35)

ParameterStatisticLimitMonths
Oxygen demand, ultimate30-day averagereport only (lb/d)Jun–Sep
Oxygen demand, ultimatedaily maximumreport only (lb/d)Jun–Sep
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/LJun–Sep
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/LJan, Feb, Mar, Apr, May, Oct, Nov, Dec
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/LJun–Sep
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/LJan, Feb, Mar, Apr, May, Oct, Nov, Dec
BOD, 5-day, 20 deg. Cdaily maximum≤ 50 mg/LJun–Sep
BOD, 5-day, 20 deg. Cdaily maximum≤ 50 mg/LJan, Feb, Mar, Apr, May, Oct, Nov, Dec
BOD, 5-day, 20 deg. Cmonthly average≤ 15 lb/dJun–Sep
BOD, 5-day, 20 deg. Cmonthly average≤ 15 lb/dJan, Feb, Mar, Apr, May, Oct, Nov, Dec
BOD, 5-day, 20 deg. Cweekly average≤ 22.5 lb/dJun–Sep
BOD, 5-day, 20 deg. Cweekly average≤ 22.5 lb/dJan, Feb, Mar, Apr, May, Oct, Nov, Dec
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year
pHminimum≥ 6.5 SUall year
pHmaximum≤ 8.5 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedweekly average≤ 45 mg/Lall year
Solids, total suspendeddaily maximum≤ 50 mg/Lall year
Solids, total suspendedmonthly average≤ 15 lb/dall year
Solids, total suspendedweekly average≤ 22.5 lb/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, settleabledaily maximum≤ 1 mL/Lall year
Nitrogen, total [as N]daily maximumreport only (mg/L)all year
Nitrogen, total [as N]monthly averagereport only (mg/L)Jul–Sep
Nitrogen, total [as N]annual average≤ 12 lb/dDec
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)Jun–Sep
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)Jul–Sep
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)Jul–Sep
Phosphorus, total [as P]daily maximumreport only (mg/L)all year
E. coli, thermotol, MF, MTECdaily maximum≤ 77 #/100mLall year
Flow, in conduit or thru treatment plantannual average≤ .06 MGDall year
BOD, carb-5 day, 20 deg C, percent removalmonthly minimum≥ 85 %all year
Solids, suspended percent removalmonthly minimum≥ 85 %all year

How strict are these limits?

Cited limits by parameter: Vermont'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/VT0100633 · MCP: https://passage-data.com/mcp