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Bethel Town of

Sewage treatment plant, Bethel, Maine. NPDES permit ME0101176, in force until Dec 31, 2027. Last 12 months: over a limit 17 times (last September 2026), 1 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (28 values)
Renewal application due
Jul 4, 2027 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
5 values over a limit, 0 required values missing, 0 of 12 reports late

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

All 17 values over a limit
Period endingParameterReportedLimitOver by
January 2026Solids, total suspended, daily maximum135.6 mg/L≤ 50 mg/L171%
January 2026Solids, total suspended, monthly average65.6 mg/L≤ 30 mg/L119%
January 2026Solids, total suspended, weekly average135.6 mg/L≤ 45 mg/L201%
February 2026BOD, 5-day, 20 deg. C, daily maximum57.3 mg/L≤ 50 mg/L15%
February 2026BOD, 5-day, 20 deg. C, monthly average56.8 mg/L≤ 30 mg/L89%
February 2026BOD, 5-day, 20 deg. C, weekly average57.3 mg/L≤ 45 mg/L27%
February 2026Solids, total suspended, daily maximum128.7 mg/L≤ 50 mg/L157%
February 2026Solids, total suspended, monthly average123 mg/L≤ 30 mg/L310%
February 2026Solids, total suspended, monthly average88.2 lb/d≤ 85 lb/d4%
February 2026Solids, total suspended, weekly average128.7 mg/L≤ 45 mg/L186%
April 2026Solids, total suspended, daily maximum85.3 mg/L≤ 50 mg/L71%
April 2026Solids, total suspended, monthly average46.7 mg/L≤ 30 mg/L56%
April 2026Solids, total suspended, weekly average85.3 mg/L≤ 45 mg/L90%
June 2026Solids, total suspended, daily maximum57 mg/L≤ 50 mg/L14%
June 2026Solids, total suspended, monthly average31.7 mg/L≤ 30 mg/L6%
June 2026Solids, total suspended, weekly average57 mg/L≤ 45 mg/L27%
September 2026pH, minimum5.39 SU≥ 6 SU—

Limits in force (28)

ParameterStatisticLimitMonths
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 50 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 85 lb/dall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 142 lb/dall year
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year
BOD, 5-day, 20 deg. Cweekly average≤ 128 lb/dall year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendeddaily maximum≤ 50 mg/Lall year
Solids, total suspendedmonthly average≤ 85 lb/dall year
Solids, total suspendeddaily maximum≤ 142 lb/dall year
Solids, total suspendedweekly average≤ 45 mg/Lall year
Solids, total suspendedweekly average≤ 128 lb/dall year
Solids, settleabledaily maximum≤ .3 mL/Lall year
E. coli, thermotol, MF, MTECmonthly geometric mean≤ 64 #/100mLApr–Oct
E. coli, thermotol, MF, MTECdaily maximum≤ 236 #/100mLApr–Oct
Flow, in conduit or thru treatment plantmonthly average≤ .34 MGDall year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Chlorine, total residualdaily maximum≤ 1 mg/Lall year
Peracetic Acidmonthly averagereport only (mg/L)all year
Peracetic Aciddaily maximumreport only (mg/L)all year
Peracetic Acidmonthly averagereport only (lb/d)all year
Peracetic Aciddaily maximumreport only (lb/d)all year
Mercury, total [as Hg]monthly average≤ 10.2 ng/Lall year
Mercury, total [as Hg]daily maximum≤ 15.2 ng/Lall year
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year
Solids, suspended percent removalmonthly average minimum≥ 85 %all year

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/ME0101176 · MCP: https://passage-data.com/mcp