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Parker City WWTP

Sewage treatment plant, Parker, Indiana. NPDES permit IN0020729, in force until Dec 31, 2029. Last 12 months: over a limit 9 times (last April 2026), 1 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (23 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
10 values over a limit, 0 required values missing, 3 of 12 reports late

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

Period endingParameterReportedLimitOver by
October 2025Nitrogen, ammonia total [as N], monthly average11.3 mg/L≤ 10.8 mg/L5%
November 2025Nitrogen, ammonia total [as N], monthly average12.2 mg/L≤ 10.8 mg/L13%
November 2025Nitrogen, ammonia total [as N], maximum weekly average18.3 mg/L≤ 16.2 mg/L13%
December 2025Nitrogen, ammonia total [as N], monthly average11.7 mg/L≤ 10.8 mg/L8%
December 2025Nitrogen, ammonia total [as N], maximum weekly average16.9 mg/L≤ 16.2 mg/L4%
January 2026Nitrogen, ammonia total [as N], monthly average14.6 mg/L≤ 10.8 mg/L35%
February 2026Nitrogen, ammonia total [as N], monthly average15.9 mg/L≤ 10.8 mg/L47%
February 2026Nitrogen, ammonia total [as N], maximum weekly average20.9 mg/L≤ 16.2 mg/L29%
April 2026Nitrogen, ammonia total [as N], maximum weekly average28 lb/d≤ 25.7 lb/d9%

Limits in force (23)

ParameterStatisticLimitMonths
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≤ 47.6 lb/dall year
Solids, total suspendedmaximum weekly average≤ 71.3 lb/dall year
Nitrogen, ammonia total [as N]monthly average≤ 10.8 mg/Lall year
Nitrogen, ammonia total [as N]maximum weekly average≤ 16.2 mg/Lall year
Nitrogen, ammonia total [as N]monthly average≤ 17.1 lb/dall year
Nitrogen, ammonia total [as N]maximum weekly average≤ 25.7 lb/dall year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantmaximum weekly 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≤ 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≤ 39.6 lb/dall year
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 63.4 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/IN0020729 · MCP: https://passage-data.com/mcp