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City of Lohrville

Sewage treatment plant, Lohrville, Iowa. NPDES permit IA0084280, in force until Mar 31, 2029. Last 12 months: over a limit 8 times (last December 2025). Source: EPA ECHO, Oct 22, 2026.

Reports due: About 15 days after each period: form A monthly (11 values)
Last report on file: September 2026
Oct 2024 – Sep 2025: 10 values over a limit, 0 required values missing, 0 of 12 reports late

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

Period ending	Parameter	Reported	Limit	Over by
November 2025	Chloride [as Cl], 30-day average	1505	≤ 399 mg/L	277%
November 2025	Chloride [as Cl], 30-day average	3137.925	≤ 1766 lb/d	78%
November 2025	Chloride [as Cl], daily maximum	1505	≤ 631 mg/L	139%
November 2025	Chloride [as Cl], daily maximum	3137.925	≤ 2788 lb/d	13%
December 2025	Chloride [as Cl], 30-day average	1450	≤ 399 mg/L	263%
December 2025	Chloride [as Cl], 30-day average	6046.5	≤ 1766 lb/d	242%
December 2025	Chloride [as Cl], daily maximum	1462	≤ 631 mg/L	132%
December 2025	Chloride [as Cl], daily maximum	6096.54	≤ 2788 lb/d	119%

Limits in force (11)

Parameter	Statistic	Limit	Months
pH	daily minimum	≥ 6.5 SU	all year
pH	daily maximum	≤ 9 SU	all year
Solids, total suspended	30-day average	≤ 80 mg/L	all year
Solids, total suspended	7-day average	≤ 120 mg/L	all year
Chloride [as Cl]	30-day average	≤ 399 mg/L	all year
Chloride [as Cl]	daily maximum	≤ 631 mg/L	all year
Chloride [as Cl]	30-day average	≤ 1766 lb/d	all year
Chloride [as Cl]	daily maximum	≤ 2788 lb/d	all year
E. coli	geometric mean	≤ 126 #/100mL	Mar–Nov
BOD, carbonaceous [5 day, 20 C]	30-day average	≤ 25 mg/L	all year
BOD, carbonaceous [5 day, 20 C]	7-day average	≤ 40 mg/L	all year

How strict are these limits?

pH, daily minimum at least 6.5 SU — stricter than 56% of 699 other minor POTWs in Iowa; 44% have the same limit
E. coli, geometric mean 126 #/100mL — stricter than 44% of 285 other minor POTWs in Iowa; 55% have the same limit
Chloride [as Cl], 30-day average 399 mg/L — stricter than 39% of 69 other minor POTWs in Iowa; 1% have the same limit

Cited limits by parameter: Iowa'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/IA0084280 · MCP: https://passage-data.com/mcp