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East Machias Town of

Sewage treatment plant, East Machias, Maine. NPDES permit ME0102156 expired Jul 31, 2023; its limits still apply. Last 12 months: over a limit once (last July 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form A monthly (20 values), outfall 003 form A monthly (20 values), outfall 005 form A monthly (22 values), outfall 006 form A monthly (12 values), outfall 007 form A monthly (12 values), outfall 015 form A monthly (12 values), and 1 more form
Last report on file
September 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 7 of 84 reports late

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

Period endingParameterReportedLimitOver by
July 2026Coliform, fecal MF, MFC broth, 44.5 C, daily maximum60.5 #/100mL≤ 50 #/100mL21%

Limits in force (110)

ParameterStatisticLimitMonthsOutfall
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 average≤ 1 lb/dall year001
BOD, 5-day, 20 deg. Cdaily maximum≤ 1.5 lb/dall year001
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year001
BOD, 5-day, 20 deg. Cweekly average≤ 1.3 lb/dall 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 average≤ 1 lb/dall year001
Solids, total suspendeddaily maximum≤ 1.5 lb/dall year001
Solids, total suspendedweekly average≤ 45 mg/Lall year001
Solids, total suspendedweekly average≤ 1.3 lb/dall year001
Coliform, fecal MF, MFC broth, 44.5 Cmonthly geometric mean≤ 15 #/100mLMay–Sep001
Coliform, fecal MF, MFC broth, 44.5 Cdaily maximum≤ 50 #/100mLMay–Sep001
Flow, in conduit or thru treatment plantmonthly average≤ 3575 gal/dall year001
Chlorine, total residualdaily maximum≤ 1 mg/Lall year001
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year001
Solids, suspended percent removalmonthly average minimum≥ 85 %all year001
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year003
BOD, 5-day, 20 deg. Cdaily maximum≤ 50 mg/Lall year003
BOD, 5-day, 20 deg. Cmonthly average≤ 1 lb/dall year003
BOD, 5-day, 20 deg. Cdaily maximum≤ 1.6 lb/dall year003
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year003
BOD, 5-day, 20 deg. Cweekly average≤ 1.4 lb/dall year003
pHminimum≥ 6 SUall year003
pHmaximum≤ 9 SUall year003
Solids, total suspendedmonthly average≤ 30 mg/Lall year003
Solids, total suspendeddaily maximum≤ 50 mg/Lall year003
Solids, total suspendedmonthly average≤ 1 lb/dall year003
Solids, total suspendeddaily maximum≤ 1.6 lb/dall year003
Solids, total suspendedweekly average≤ 45 mg/Lall year003
Solids, total suspendedweekly average≤ 1.4 lb/dall year003
Coliform, fecal MF, MFC broth, 44.5 Cmonthly geometric mean≤ 15 #/100mLMay–Sep003
Coliform, fecal MF, MFC broth, 44.5 Cdaily maximum≤ 50 #/100mLMay–Sep003
Flow, in conduit or thru treatment plantmonthly average≤ 3800 gal/dall year003
Chlorine, total residualdaily maximum≤ .3 mg/Lall year003
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year003
Solids, suspended percent removalmonthly average minimum≥ 85 %all year003
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year005
BOD, 5-day, 20 deg. Cdaily maximum≤ 50 mg/Lall year005
BOD, 5-day, 20 deg. Cmonthly average≤ 2 lb/dall year005
BOD, 5-day, 20 deg. Cdaily maximum≤ 2.9 lb/dall year005
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year005
BOD, 5-day, 20 deg. Cweekly average≤ 2.6 lb/dall year005
pHminimum≥ 6 SUall year005
pHmaximum≤ 9 SUall year005
Solids, total suspendedmonthly average≤ 30 mg/Lall year005
Solids, total suspendeddaily maximum≤ 50 mg/Lall year005
Solids, total suspendedmonthly average≤ 2 lb/dall year005
Solids, total suspendeddaily maximum≤ 2.9 lb/dall year005
Solids, total suspendedweekly average≤ 45 mg/Lall year005
Solids, total suspendedweekly average≤ 2.6 lb/dall year005
Coliform, fecal MF, MFC broth, 44.5 Cmonthly geometric mean≤ 15 #/100mLMay–Sep005
Coliform, fecal MF, MFC broth, 44.5 Cdaily maximum≤ 50 #/100mLMay–Sep005
Flow, in conduit or thru treatment plantmonthly average≤ 6900 gal/dall year005
Chlorine, total residualdaily maximum≤ 1 mg/Lall year005
Mercury, total [as Hg]monthly average≤ 5.7 ng/Lall year005
Mercury, total [as Hg]daily maximum≤ 8.6 ng/Lall year005
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year005
Solids, suspended percent removalmonthly average minimum≥ 85 %all year005
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year006
BOD, 5-day, 20 deg. Cdaily maximum≤ 50 mg/Lall year006
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year006
pHminimum≥ 6 SUall year006
pHmaximum≤ 9 SUall year006
Solids, total suspendedmonthly average≤ 30 mg/Lall year006
Solids, total suspendeddaily maximum≤ 50 mg/Lall year006
Solids, total suspendedweekly average≤ 45 mg/Lall year006
E. coli, thermotol, MF, MTECmonthly average≤ 15 #/100mLall year006
E. coli, thermotol, MF, MTECdaily maximum≤ 50 #/100mLall year006
Flow, in conduit or thru treatment plantmonthly average≤ 1450 gal/dall year006
Chlorine, total residualdaily maximum≤ 1 mg/LMay–Sep006
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year007
BOD, 5-day, 20 deg. Cdaily maximum≤ 50 mg/Lall year007
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year007
pHminimum≥ 6 SUall year007
pHmaximum≤ 9 SUall year007
Solids, total suspendedmonthly average≤ 30 mg/Lall year007
Solids, total suspendeddaily maximum≤ 50 mg/Lall year007
Solids, total suspendedweekly average≤ 45 mg/Lall year007
E. coli, thermotol, MF, MTECmonthly average≤ 15 #/100mLMay–Sep007
E. coli, thermotol, MF, MTECdaily maximum≤ 50 #/100mLMay–Sep007
Flow, in conduit or thru treatment plantmonthly average≤ 1100 gal/dall year007
Chlorine, total residualdaily maximum≤ 1 mg/Lall year007
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year015
BOD, 5-day, 20 deg. Cdaily maximum≤ 50 mg/Lall year015
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year015
pHminimum≥ 6 SUall year015
pHmaximum≤ 9 SUall year015
Solids, total suspendedmonthly average≤ 30 mg/Lall year015
Solids, total suspendeddaily maximum≤ 50 mg/Lall year015
Solids, total suspendedweekly average≤ 45 mg/Lall year015
E. coli, thermotol, MF, MTECmonthly average≤ 15 #/100mLMay–Sep015
E. coli, thermotol, MF, MTECdaily maximum≤ 50 #/100mLMay–Sep015
Flow, in conduit or thru treatment plantmonthly average≤ 300 gal/dall year015
Chlorine, total residualdaily maximum≤ 1 mg/Lall year015
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year017
BOD, 5-day, 20 deg. Cdaily maximum≤ 50 mg/Lall year017
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year017
pHminimum≥ 6 SUall year017
pHmaximum≤ 9 SUall year017
Solids, total suspendedmonthly average≤ 30 mg/Lall year017
Solids, total suspendeddaily maximum≤ 50 mg/Lall year017
Solids, total suspendedweekly average≤ 45 mg/Lall year017
E. coli, thermotol, MF, MTECmonthly average≤ 15 #/100mLMay–Sep017
E. coli, thermotol, MF, MTECdaily maximum≤ 50 #/100mLMay–Sep017
Flow, in conduit or thru treatment plantmonthly average≤ 380 gal/dall year017
Chlorine, total residualdaily maximum≤ 1 mg/Lall year017

How strict are these limits?

Cited limits by parameter: Maine'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/ME0102156 · MCP: https://passage-data.com/mcp