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Village of Swanton

Sewage treatment plant, Swanton, Vermont. NPDES permit VT0020877 expired Mar 31, 2024; its limits still apply. Last 12 months: over a limit once (last May 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due: About 15 days after each period: form A monthly (6 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

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

Period ending	Parameter	Reported	Limit
May 2026	pH, minimum	6.4	≥ 6.5 SU

Limits in force (6)

Parameter	Statistic	Limit	Months
Turbidity	annual average	≤ 10 NTU	all year
Turbidity	daily maximum	report only (NTU)	all year
pH	minimum	≥ 6.5 SU	all year
pH	maximum	≤ 8.5 SU	all year
Flow, in conduit or thru treatment plant	monthly average	≤ 136000 gal/d	all year
Chlorine, total residual	daily maximum	≤ .5 mg/L	all year

How strict are these limits?

Chlorine, total residual, daily maximum .5 mg/L — stricter than 16% of 2,124 other minor POTWs nationwide; 2% have the same limit

Cited limits by parameter: Vermont'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/VT0020877 · MCP: https://passage-data.com/mcp