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Canton Town of

Sewage treatment plant, Canton, Maine. NPDES permit ME0102067, in force until Oct 31, 2029. Last 12 months: no values over a limit, 1 of 27 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form A monthly (25 values), outfall MW2 form A monthly (7 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
3 values over a limit, 0 required values missing, 1 of 32 reports late

Limits in force (32)

ParameterStatisticLimitMonthsOutfall
Stream flow, instantaneousdaily maximumreport only (cfs)all year001
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year001
BOD, 5-day, 20 deg. Cdaily maximum≤ 50 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly averagereport only (lb/d)all year001
BOD, 5-day, 20 deg. Cdaily maximumreport only (lb/d)all year001
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year001
BOD, 5-day, 20 deg. Cweekly averagereport only (lb/d)all year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendeddaily maximum≤ 50 mg/Lall year001
Solids, total suspendedmonthly averagereport only (lb/d)all year001
Solids, total suspendeddaily maximumreport only (lb/d)all year001
Solids, total suspendedweekly average≤ 45 mg/Lall year001
Solids, total suspendedweekly averagereport only (lb/d)all year001
Solids, settleabledaily maximum≤ .3 mL/Lall year001
E. coli, thermotol, MF, MTECmonthly geometric mean≤ 64 #/100mLApr–Oct001
E. coli, thermotol, MF, MTECdaily maximum≤ 236 #/100mLApr–Oct001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Mercury, total [as Hg]monthly average≤ 4.5 ng/Lall year001
Mercury, total [as Hg]daily maximum≤ 6.8 ng/Lall year001
Dilution factordaily minimum≥ 100 Ratioall year001
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year001
Solids, suspended percent removalmonthly average minimum≥ 85 %all year001
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all yearMW2
Specific conductancedaily maximumreport only (umho/cm)all yearMW2
pHdaily maximumreport only (SU)all yearMW2
Solids, total suspendeddaily maximumreport only (mg/L)all yearMW2
Nitrogen, nitrate total [as N]daily maximum≤ 10 ug/Lall yearMW2
Chloride [as Cl]daily maximumreport only (ug/L)all yearMW2
Depth to water level ft below landsurfacedaily maximumreport only (ft)all yearMW2

How strict are these limits?

Cited limits by parameter: Maine'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/ME0102067 · MCP: https://passage-data.com/mcp