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Washburn Water and Sewer District

Sewage treatment plant, Washburn, Maine. NPDES permit ME0101028, in force until Sep 30, 2029. Last 12 months: over a limit 4 times (last April 2026), 1 of 16 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (28 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 1 of 16 reports late

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

Period endingParameterReportedLimitOver by
October 2025BOD, 5-day, percent removal, monthly average minimum84 %≥ 85 %7%
November 2025BOD, 5-day, percent removal, monthly average minimum84 %≥ 85 %7%
March 2026BOD, 5-day, percent removal, monthly average minimum84 %≥ 85 %7%
April 2026BOD, 5-day, percent removal, monthly average minimum84 %≥ 85 %7%

Limits in force (38)

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≤ 71 lb/dall year001
BOD, 5-day, 20 deg. Cdaily maximum≤ 118 lb/dall year001
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year001
BOD, 5-day, 20 deg. Cweekly average≤ 106 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≤ 71 lb/dall year001
Solids, total suspendeddaily maximum≤ 118 lb/dall year001
Solids, total suspendedweekly average≤ 45 mg/Lall year001
Solids, total suspendedweekly average≤ 106 lb/dall year001
Solids, settleabledaily maximum≤ .3 mL/Lall year001
Copper, total [as Cu]monthly averagereport only (ug/L)all year001
Copper, total [as Cu]monthly average≤ .06 lb/dall year001
Aluminum, total [as Al]monthly averagereport only (ug/L)all year001
Aluminum, total [as Al]monthly average≤ .12 lb/dall year001
E. coli, thermotol, MF, MTECmonthly geometric mean≤ 64 #/100mLApr–Oct001
E. coli, thermotol, MF, MTECdaily maximum≤ 236 #/100mLApr–Oct001
Flow, in conduit or thru treatment plantmonthly average≤ .283 MGDall year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Chlorine, total residualdaily maximum≤ 1 mg/Lall year001
Mercury, total [as Hg]monthly average≤ 5.2 ng/Lall year001
Mercury, total [as Hg]daily maximum≤ 7.8 ng/Lall year001
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year001
Solids, suspended percent removalmonthly average minimum≥ 85 %all year001
Temperature, water deg. centigradedaily maximumreport only (deg C)May, Jul, Oct002
Flow ratedaily maximumreport only (gal/min)May, Jul, Oct002
Conductivitydaily maximumreport only (umho/cm)May, Jul, Oct002
E. coli, thermotol, MF, MTECdaily maximumreport only (#/100mL)May, Jul, Oct002
Temperature, water deg. centigradedaily maximumreport only (deg C)MayMW1
Conductivitydaily maximumreport only (umho/cm)MayMW1
pHdaily maximumreport only (SU)MayMW1
Nitrogen, nitrate total [as N]daily maximum≤ 10 mg/LMayMW1
Sodium, total [as Na]daily maximumreport only (mg/L)MayMW1
Chloride [as Cl]daily maximumreport only (mg/L)MayMW1

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/ME0101028 · MCP: https://passage-data.com/mcp