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Sorrento Town of

Sewage treatment plant, Sorrento, Maine. NPDES permit ME0102130, in force until Apr 30, 2031. Last 12 months: no values over a limit, 1 of 5 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (22 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 5 reports late

Limits in force (22)

ParameterStatisticLimitMonths
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/LApr–Oct
BOD, 5-day, 20 deg. Cdaily maximum≤ 50 mg/LApr–Oct
BOD, 5-day, 20 deg. Cmonthly average≤ 1 lb/dApr–Oct
BOD, 5-day, 20 deg. Cdaily maximum≤ 1.4 lb/dApr–Oct
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/LApr–Oct
BOD, 5-day, 20 deg. Cweekly average≤ 1.3 lb/dApr–Oct
pHminimum≥ 6 SUApr–Oct
pHmaximum≤ 9 SUApr–Oct
Solids, total suspendedmonthly average≤ 30 mg/LApr–Oct
Solids, total suspendeddaily maximum≤ 50 mg/LApr–Oct
Solids, total suspendedmonthly average≤ 1 lb/dApr–Oct
Solids, total suspendeddaily maximum≤ 1.4 lb/dApr–Oct
Solids, total suspendedweekly average≤ 45 mg/LApr–Oct
Solids, total suspendedweekly average≤ 1.3 lb/dApr–Oct
Solids, settleabledaily maximum≤ .3 mL/LApr–Oct
Coliform, fecal MF, MFC broth, 44.5 Cmonthly geometric mean≤ 14 #/100mLApr–Oct
Coliform, fecal MF, MFC broth, 44.5 Cdaily maximum≤ 31 #/100mLApr–Oct
Chlorine, total residualdaily maximum≤ 1 mg/LApr–Oct
Enterococcimonthly geometric mean≤ 8 #/100mLApr–Oct
Enterococcidaily maximum≤ 54 #/100mLApr–Oct
Mercury, total [as Hg]monthly average≤ 12 ng/LApr–Oct
Mercury, total [as Hg]daily maximum≤ 18 ng/LApr–Oct

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/ME0102130 · MCP: https://passage-data.com/mcp