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Town of Middlesex

Water Supply, Middlesex, North Carolina. NPDES permit NC0087840, in force until Apr 30, 2028. Last 12 months: no values over a limit, 5 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due: About 31 days after each period: form M monthly (7 values)
Renewal application due: Nov 2, 2027 · 180 days before expiry; your permit may set another date
Last report on file: August 2026
Oct 2024 – Sep 2025: 0 values over a limit, 7 required values missing, 5 of 12 reports late

Limits in force (7)

Parameter	Statistic	Limit	Months
Turbidity	daily maximum	report only (NTU)	all year
pH	daily minimum	≥ 6 SU	all year
pH	daily maximum	≤ 9 SU	all year
Solids, total suspended	30-day average	≤ 30 mg/L	all year
Solids, total suspended	daily maximum	≤ 45 mg/L	all year
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year
Chlorine, total residual	daily maximum	≤ 17 ug/L	all year

How strict are these limits?

Chlorine, total residual, daily maximum 17 ug/L — stricter than 56% of 457 other minor industrial and other permits in North Carolina; 34% have the same limit

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

Same industry: the 130 Water Supply permits in North Carolina.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/NC0087840 · MCP: https://passage-data.com/mcp