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The Maine Water Company

Water Supply, Biddeford, Maine. NPDES permit ME0000035, in force until Dec 31, 2028. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due: About 15 days after each period: form A monthly (11 values)
Last report on file: September 2026
Oct 2024 – Sep 2025: 0 values over a limit, 0 required values missing, 0 of 12 reports late

Limits in force (11)

Parameter	Statistic	Limit	Months
pH	minimum	≥ 6 SU	all year
pH	maximum	≤ 8.5 SU	all year
Solids, total suspended	monthly average	≤ 30 mg/L	all year
Solids, total suspended	daily maximum	≤ 60 mg/L	all year
Solids, total suspended	monthly average	≤ 20 lb/d	all year
Solids, total suspended	daily maximum	≤ 40 lb/d	all year
Solids, settleable	monthly average	≤ .1 mL/L	all year
Aluminum, total [as Al]	daily maximum	≤ 5 mg/L	all year
Aluminum, total [as Al]	daily maximum	≤ 3.3 lb/d	all year
Flow, in conduit or thru treatment plant	monthly average	≤ .15 MGD	all year
Chlorine, total residual	daily maximum	≤ 1 mg/L	all year

How strict are these limits?

pH, maximum 8.5 SU — stricter than 87% of 83 other minor industrial and other permits in Maine; 12% have the same limit
Solids, settleable, monthly average .1 mL/L — stricter than 60% of 85 other minor industrial and other permits nationwide; 40% have the same limit
Solids, total suspended, daily maximum 60 mg/L — stricter than 18% of 92 other minor industrial and other permits in Maine; 10% have the same limit

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

Same industry: the 15 Water Supply 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/ME0000035 · MCP: https://passage-data.com/mcp