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Mount Desert Island Regional High School System

Sewerage Systems, Mount Desert, Maine. NPDES permit MEU503319 expired May 31, 2025; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form A monthly (1 value), outfall MW1 form A monthly (1 value), outfall MW2 form A monthly (1 value), outfall MW3 form A monthly (1 value), outfall SF1 form A monthly (2 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 1 required value missing, 1 of 35 reports late

Limits in force (32)

ParameterStatisticLimitMonthsOutfall
BOD, 5-day, 20 deg. Cdaily maximum≤ 100 mg/LJul, Aug001
Solids, total suspendeddaily maximum≤ 100 mg/LJul, Aug001
Nitrogen, nitrate total [as N]daily maximumreport only (mg/L)Jul, Aug001
Lagoon freeboarddaily minimum≥ 2 ftApr–Nov001
Temperature, water deg. centigradedaily maximumreport only (deg C)JulLUD
Flow ratedaily maximumreport only (gal/min)JulLUD
Specific conductancedaily maximumreport only (umho/cm)JulLUD
Temperature, water deg. centigradedaily maximumreport only (deg C)May, Jul, Aug, OctMW1
Specific conductancedaily maximumreport only (umho/cm)May, Jul, Aug, OctMW1
pHdaily maximumreport only (SU)May, Jul, Aug, OctMW1
Solids, total suspendeddaily maximumreport only (mg/L)May, Jul, Aug, OctMW1
Nitrogen, nitrate total [as N]daily maximum≤ 10 mg/LMay, Jul, Aug, OctMW1
Depth to water level ft below landsurfacedaily maximumreport only (ft)May–OctMW1
Temperature, water deg. centigradedaily maximumreport only (deg C)May, Jul, Aug, OctMW2
Specific conductancedaily maximumreport only (umho/cm)May, Jul, Aug, OctMW2
pHdaily maximumreport only (SU)May, Jul, Aug, OctMW2
Solids, total suspendeddaily maximumreport only (mg/L)May, Jul, Aug, OctMW2
Nitrogen, nitrate total [as N]daily maximum≤ 10 mg/LMay, Jul, Aug, OctMW2
Depth to water level ft below landsurfacedaily maximumreport only (ft)May–OctMW2
Temperature, water deg. centigradedaily maximumreport only (deg C)May, Jul, Aug, OctMW3
Specific conductancedaily maximumreport only (umho/cm)May, Jul, Aug, OctMW3
pHdaily maximumreport only (SU)May, Jul, Aug, OctMW3
Solids, total suspendeddaily maximumreport only (mg/L)May, Jul, Aug, OctMW3
Nitrogen, nitrate total [as N]daily maximum≤ 10 mg/LMay, Jul, Aug, OctMW3
Depth to water level ft below landsurfacedaily maximumreport only (ft)May–OctMW3
Application rate, weekly spray irrigation.weekly maximum≤ 95025 gal/acrJulSF1
Application rate, weekly spray irrigation.weekly maximum≤ 81450 gal/acrJunSF1
Application rate, weekly spray irrigation.weekly maximum≤ 54300 gal/acrApr, MaySF1
Application rate, weekly spray irrigation.weekly maximum≤ 86880 gal/acrAugSF1
Application rate, weekly spray irrigation.weekly maximum≤ 59730 gal/acrSepSF1
Application rate, weekly spray irrigation.weekly maximum≤ 27150 gal/acrOct, NovSF1
Flow, totalmonthly totalreport only (gal)Apr–NovSF1

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/MEU503319 · MCP: https://passage-data.com/mcp