Passage Data · Check a report · Use it from your AI

Somerset Subdivision

Subdividers And Developers, Somerset, Indiana. NPDES permit IN0029815, in force until Aug 31, 2030. Last 12 months: over a limit 6 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (25 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
2 values over a limit, 0 required values missing, 0 of 12 reports late

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

Period endingParameterReportedLimitOver by
August 2026BOD, carbonaceous [5 day, 20 C], maximum weekly average20.5 lb/d≤ 10.6 lb/d93%
August 2026Nitrogen, ammonia total [as N], maximum weekly average1.3 lb/d≤ 1.1 lb/d18%
August 2026Oxygen, dissolved [DO], daily average minimum5.3 mg/L≥ 6 mg/L12%
August 2026Solids, total suspended, monthly average13.6 lb/d≤ 8.5 lb/d60%
August 2026Solids, total suspended, maximum weekly average19.6 mg/L≤ 18 mg/L9%
August 2026Solids, total suspended, maximum weekly average50.6 lb/d≤ 12.7 lb/d298%

Limits in force (29)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]daily average minimum≥ 6 mg/Lall year
pHdaily minimum≥ 6 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 12 mg/Lall year
Solids, total suspendedmaximum weekly average≤ 18 mg/Lall year
Solids, total suspendedmonthly average≤ 8.5 lb/dall year
Solids, total suspendedmaximum weekly average≤ 12.7 lb/dall year
Nitrogen, ammonia total [as N]monthly average≤ 1.1 mg/LMay–Nov
Nitrogen, ammonia total [as N]monthly average≤ 1.6 mg/LJan, Feb, Mar, Apr, Dec
Nitrogen, ammonia total [as N]maximum weekly average≤ 1.6 mg/LMay–Nov
Nitrogen, ammonia total [as N]maximum weekly average≤ 2.4 mg/LJan, Feb, Mar, Apr, Dec
Nitrogen, ammonia total [as N]monthly average≤ .8 lb/dMay–Nov
Nitrogen, ammonia total [as N]monthly average≤ 1.1 lb/dJan, Feb, Mar, Apr, Dec
Nitrogen, ammonia total [as N]maximum weekly average≤ 1.1 lb/dMay–Nov
Nitrogen, ammonia total [as N]maximum weekly average≤ 1.7 lb/dJan, Feb, Mar, Apr, Dec
Phosphorus, total [as P]monthly average≤ 1 mg/Lall year
Phosphorus, total [as P]monthly averagereport only (lb/d)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Chlorine, total residualmonthly average< .06 mg/LApr–Oct
Chlorine, total residualdaily maximum< .06 mg/LApr–Oct
Chlorine, total residualdaily minimum≥ .5 mg/LApr–Oct
Chlorine, total residualdaily maximumreport only (mg/L)Apr–Oct
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≤ 10 mg/Lall year
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 15 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 7.1 lb/dall year
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 10.6 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.

Same industry: the 109 Real Estate permits in Indiana.

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

· Save this facility as a site · Superfund sites nearby · Your permits on one board

On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/IN0029815 · MCP: https://passage-data.com/mcp