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Monhegan Island Inn, Inc.

Hotels And Motels, Monhegan, Maine. NPDES permit ME0037516, in force until Oct 31, 2027. Last 12 months: over a limit 12 times (last August 2026), 7 required values missing, 1 of 7 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (24 values)
Renewal application due
May 4, 2027 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
31 values over a limit, 7 required values missing, 1 of 7 reports late

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

Period endingParameterReportedLimitOver by
May 2026E. coli, thermotol, MF, MTEC, daily maximum> 2420 #/100mL≤ 31 #/100mL—
May 2026E. coli, thermotol, MF, MTEC, monthly geometric mean> 2420 #/100mL≤ 14 #/100mL—
May 2026Enterococci: group D, MF trans, M-E, EIA, daily maximum921 #/100mL≤ 54 #/100mL1606%
May 2026Enterococci: group D, MF trans, M-E, EIA, monthly geometric mean921 #/100mL≤ 8 #/100mL11413%
June 2026BOD, 5-day, 20 deg. C, daily maximum70 mg/L≤ 50 mg/L40%
June 2026BOD, 5-day, 20 deg. C, monthly average37 mg/L≤ 30 mg/L23%
June 2026E. coli, thermotol, MF, MTEC, daily maximum> 2420 #/100mL≤ 31 #/100mL—
June 2026E. coli, thermotol, MF, MTEC, monthly geometric mean> 2420 #/100mL≤ 14 #/100mL—
June 2026Enterococci: group D, MF trans, M-E, EIA, daily maximum> 2420 #/100mL≤ 54 #/100mL—
June 2026Enterococci: group D, MF trans, M-E, EIA, monthly geometric mean> 2420 #/100mL≤ 8 #/100mL—
August 2026Enterococci: group D, MF trans, M-E, EIA, daily maximum> 2420 #/100mL≤ 54 #/100mL—
August 2026Enterococci: group D, MF trans, M-E, EIA, monthly geometric mean< 1210.5 #/100mL≤ 8 #/100mL15031%

Limits in force (24)

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≤ 2.33 lb/dApr–Oct
BOD, 5-day, 20 deg. Cdaily maximum≤ 3.88 lb/dApr–Oct
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/LApr–Oct
BOD, 5-day, 20 deg. Cweekly average≤ 3.49 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≤ 2.33 lb/dApr–Oct
Solids, total suspendeddaily maximum≤ 3.88 lb/dApr–Oct
Solids, total suspendedweekly average≤ 45 mg/LApr–Oct
Solids, total suspendedweekly average≤ 3.49 lb/dApr–Oct
Solids, settleabledaily maximum≤ .3 mL/LApr–Oct
E. coli, thermotol, MF, MTECmonthly geometric mean≤ 14 #/100mLApr–Oct
E. coli, thermotol, MF, MTECdaily maximum≤ 31 #/100mLApr–Oct
Enterococci: group D, MF trans, M-E, EIAmonthly geometric mean≤ 8 #/100mLApr–Oct
Enterococci: group D, MF trans, M-E, EIAdaily maximum≤ 54 #/100mLApr–Oct
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)Apr–Oct
Flow, in conduit or thru treatment plantdaily maximum≤ 9300 gal/dApr–Oct
Chlorine, total residualdaily maximum≤ 1 mg/LApr–Oct
BOD, 5-day, percent removalmonthly average minimum≥ 85 %Apr–Oct
Solids, suspended percent removalmonthly average minimum≥ 85 %Apr–Oct

How strict are these limits?

Cited limits by parameter: Maine's rules and the federal ones.

Same industry: the 15 Hotels, Rooming Houses, Camps and Other Lodging permits in Maine.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/ME0037516 · MCP: https://passage-data.com/mcp