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Sandborn WWTP, Town of

Sewage treatment plant, Sandborn, Indiana. NPDES permit IN0062685, in force until Jan 31, 2027. Last 12 months: over a limit 9 times (last August 2026), 19 required values missing, 5 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (19 values)
Renewal application due
Aug 4, 2026 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 4 of 12 reports late

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

Period endingParameterReportedLimitOver by
May 2026Oxygen, dissolved [DO], daily average minimum4.16 mg/L≥ 5 mg/L17%
June 2026Nitrogen, ammonia total [as N], monthly average10.513 mg/L≤ 9.2 mg/L14%
June 2026Nitrogen, ammonia total [as N], maximum weekly average16.75 mg/L≤ 13.8 mg/L21%
June 2026Oxygen, dissolved [DO], daily average minimum3.22 mg/L≥ 5 mg/L36%
July 2026Nitrogen, ammonia total [as N], monthly average16.713 mg/L≤ 9.2 mg/L82%
July 2026Nitrogen, ammonia total [as N], maximum weekly average19.325 mg/L≤ 13.8 mg/L40%
July 2026Oxygen, dissolved [DO], daily average minimum4.605 mg/L≥ 5 mg/L8%
August 2026Nitrogen, ammonia total [as N], maximum weekly average24.9 mg/L≤ 13.8 mg/L80%
August 2026Oxygen, dissolved [DO], daily average minimum4.78 mg/L≥ 5 mg/L4%

Limits in force (20)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]daily average minimum≥ 5 mg/LMay–Nov
Oxygen, dissolved [DO]daily average minimum≥ 4 mg/LJan, Feb, Mar, Apr, Dec
pHdaily minimum≥ 6 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedmaximum weekly average≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 16.5 lb/dall year
Solids, total suspendedmaximum weekly average≤ 24.8 lb/dall year
Nitrogen, ammonia total [as N]monthly average≤ 9.2 mg/Lall year
Nitrogen, ammonia total [as N]maximum weekly average≤ 13.8 mg/Lall year
Nitrogen, ammonia total [as N]monthly average≤ 5.1 lb/dall year
Nitrogen, ammonia total [as N]maximum weekly average≤ 7.6 lb/dall year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
E. coli, colony forming units [CFU]monthly geometric mean≤ 125 CFU/100mLApr–Oct
E. coli, colony forming units [CFU]daily maximum≤ 235 CFU/100mLApr–Oct
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall year
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 40 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 13.8 lb/dall year
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 22 lb/dall year
Flow, totalmonthly totalreport only (Mgal/mo)all year

How strict are these limits?

Cited limits by parameter: Indiana'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/IN0062685 · MCP: https://passage-data.com/mcp