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Boone County Regional Sewer District

Sewage treatment plant, Hallsville, Missouri. NPDES permit MO0126446 expired Dec 31, 2024; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form Q quarterly (12 values)
Last report on file
June 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 4 reports late

Limits in force (12)

ParameterStatisticLimitMonths
BOD, 5-day, 20 deg. Cweekly average≤ 65 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 45 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 2.1 lb/dall year
pHminimum≥ 6.5 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedweekly average≤ 110 mg/Lall year
Solids, total suspendedmonthly average≤ 70 mg/Lall year
Solids, total suspendedmonthly average≤ 3.2 lb/dall year
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year

How strict are these limits?

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

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/MO0126446 · MCP: https://passage-data.com/mcp