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Timberline Lot Owners Association

Private Households, Moscow Mills, Missouri. NPDES permit MO0129381 expired Jul 31, 2018; its limits still apply. Last 12 months: over a limit 8 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due: About 28 days after each period: form B quarterly
Last report on file: June 2026

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

Period ending	Parameter	Reported	Limit	Over by
March 2026	BOD, 5-day, 20 deg. C, monthly average	45	≤ 10 mg/L	350%
March 2026	BOD, 5-day, 20 deg. C, weekly average	45	≤ 15 mg/L	200%
March 2026	Nitrogen, ammonia total [as N], daily maximum	31.59	≤ 7.5 mg/L	321%
March 2026	Nitrogen, ammonia total [as N], monthly average	31.59	≤ 2.9 mg/L	989%
March 2026	Solids, total suspended, monthly average	27	≤ 15 mg/L	80%
March 2026	Solids, total suspended, weekly average	27	≤ 20 mg/L	35%
June 2026	Nitrogen, ammonia total [as N], daily maximum	7.35	≤ 3.6 mg/L	104%
June 2026	Nitrogen, ammonia total [as N], monthly average	7.35	≤ 1.4 mg/L	425%

Limits in force (12)

Parameter	Statistic	Limit	Months
BOD, 5-day, 20 deg. C	weekly average	≤ 15 mg/L	all year
BOD, 5-day, 20 deg. C	monthly average	≤ 10 mg/L	all year
pH	minimum	≥ 6.5 SU	all year
pH	maximum	≤ 9 SU	all year
Solids, total suspended	weekly average	≤ 20 mg/L	all year
Solids, total suspended	monthly average	≤ 15 mg/L	all year
Nitrogen, ammonia total [as N]	daily maximum	≤ 7.5 mg/L	Jan, Feb, Mar, Oct, Nov, Dec
Nitrogen, ammonia total [as N]	daily maximum	≤ 3.6 mg/L	Apr–Sep
Nitrogen, ammonia total [as N]	monthly average	≤ 2.9 mg/L	Jan, Feb, Mar, Oct, Nov, Dec
Nitrogen, ammonia total [as N]	monthly average	≤ 1.4 mg/L	Apr–Sep
E. coli, colony forming units [CFU]	daily maximum	≤ 1030 MPN/100mL	Apr–Oct
E. coli, colony forming units [CFU]	monthly average	≤ 206 MPN/100mL	Apr–Oct

How strict are these limits?

Nitrogen, ammonia total [as N], daily maximum 3.6 mg/L — stricter than 80% of 758 other minor industrial and other permits in Missouri; 15% have the same limit
Solids, total suspended, weekly average 20 mg/L — stricter than 79% of 786 other minor industrial and other permits in Missouri; 18% have the same limit
BOD, 5-day, 20 deg. C, weekly average 15 mg/L — stricter than 79% of 787 other minor industrial and other permits in Missouri; 21% have the same limit

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

Same industry: the 22 Private Households permits in Missouri.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/MO0129381 · MCP: https://passage-data.com/mcp