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Hettinger City Of

Sewage treatment plant, Hettinger, North Dakota. NPDES permit ND0022497, in force until Mar 31, 2031. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due: About 30 days after each period: form A twice a year (8 values)
Last report on file: September 2026
Oct 2024 – Sep 2025: 0 values over a limit, 0 required values missing, 0 of 2 reports late

Limits in force (8)

Parameter	Statistic	Limit	Months
BOD, 5-day, 20 deg. C	30-day average	≤ 25 mg/L	all year
BOD, 5-day, 20 deg. C	maximum 7-day average	report only (mg/L)	all year
pH	minimum	≥ 6 SU	all year
pH	maximum	≤ 9 SU	all year
Solids, total suspended	30-day average	≤ 60 mg/L	all year
Solids, total suspended	maximum 7-day average	report only (mg/L)	all year
Flow, total	total	report only (Mgal)	all year
Duration of discharge	total	report only (d)	all year

How strict are these limits?

BOD, 5-day, 20 deg. C, 30-day average 25 mg/L — stricter than 82% of 397 other minor POTWs nationwide; 1% have the same limit
Solids, total suspended, 30-day average 60 mg/L — stricter than 54% of 1,114 other minor POTWs nationwide

Cited limits by parameter: North Dakota'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/ND0022497 · MCP: https://passage-data.com/mcp