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Nycdep

Water Supply, Yonkers, New York. NPDES permit NY0270831, in force until Nov 30, 2027. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due: About 28 days after each period: form M monthly (3 values), form V monthly (1 value)
Renewal application due: Jun 3, 2027 · 180 days before expiry; your permit may set another date
Last report on file: September 2026
Oct 2024 – Sep 2025: 0 values over a limit, 0 required values missing, 0 of 24 reports late

Limits in force (4)

Parameter	Statistic	Limit	Months
Flow rate	daily maximum	report only (gal/d)	all year
pH	minimum	≥ 6.5 SU	all year
pH	maximum	≤ 8.5 SU	all year
Chlorine, total residual	daily maximum	≤ .1 mg/L (alert, not enforceable)	all year

How strict are these limits?

pH, maximum 8.5 SU — stricter than 54% of 595 other minor industrial and other permits in New York; 45% have the same limit
pH, minimum at least 6.5 SU — stricter than 54% of 595 other minor industrial and other permits in New York; 46% have the same limit

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

Same industry: the 53 Water Supply permits in New York.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/NY0270831 · MCP: https://passage-data.com/mcp