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Whitestown South WWTP

Sewage treatment plant, major discharger, Whitestown, Indiana. NPDES permit IN0064211, in force until Sep 30, 2029. Last 12 months: over a limit 17 times (last June 2026), 2 of 13 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
1 value over a limit, 0 required values missing, 0 of 14 reports late

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

All 17 values over a limit
Period endingParameterReportedLimitOver by
April 2026BOD, carbonaceous [5 day, 20 C], monthly average15.9 mg/L≤ 10 mg/L59%
April 2026BOD, carbonaceous [5 day, 20 C], monthly average218 lb/d≤ 141.9 lb/d54%
April 2026BOD, carbonaceous [5 day, 20 C], maximum weekly average37.23 mg/L≤ 15 mg/L148%
April 2026BOD, carbonaceous [5 day, 20 C], maximum weekly average498.4 lb/d≤ 212.8 lb/d134%
April 2026Phosphorus, total [as P], monthly average1.158 mg/L≤ 1 mg/L16%
April 2026Solids, total suspended, monthly average28.82 mg/L≤ 12 mg/L140%
April 2026Solids, total suspended, monthly average388.4 lb/d≤ 170.2 lb/d128%
April 2026Solids, total suspended, maximum weekly average1011.5 lb/d≤ 255.4 lb/d296%
April 2026Solids, total suspended, maximum weekly average75.63 mg/L≤ 18 mg/L320%
May 2026Nitrogen, ammonia total [as N], monthly average1.6 mg/L≤ 1.1 mg/L45%
May 2026Nitrogen, ammonia total [as N], monthly average23.9 lb/d≤ 15.6 lb/d53%
May 2026Nitrogen, ammonia total [as N], maximum weekly average2.7 mg/L≤ 1.6 mg/L69%
May 2026Nitrogen, ammonia total [as N], maximum weekly average36.7 lb/d≤ 22.7 lb/d62%
June 2026Solids, total suspended, monthly average19.67 mg/L≤ 12 mg/L64%
June 2026Solids, total suspended, monthly average268.7 lb/d≤ 170.2 lb/d58%
June 2026Solids, total suspended, maximum weekly average21.02 mg/L≤ 18 mg/L17%
June 2026Solids, total suspended, maximum weekly average283.2 lb/d≤ 255.4 lb/d11%

Limits in force (41)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]daily average minimum≥ 6 mg/Lall year001
pHdaily minimum≥ 6 SUall year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 12 mg/Lall year001
Solids, total suspendedmaximum weekly average≤ 18 mg/Lall year001
Solids, total suspendedmonthly average≤ 170.2 lb/dall year001
Solids, total suspendedmaximum weekly average≤ 255.4 lb/dall year001
Nitrogen, total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, total [as N]monthly averagereport only (lb/d)all year001
Nitrogen, ammonia total [as N]monthly average≤ 1.1 mg/LMay–Nov001
Nitrogen, ammonia total [as N]monthly average≤ 1.6 mg/LJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]maximum weekly average≤ 1.6 mg/LMay–Nov001
Nitrogen, ammonia total [as N]maximum weekly average≤ 2.4 mg/LJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 15.6 lb/dMay–Nov001
Nitrogen, ammonia total [as N]monthly average≤ 22.7 lb/dJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]maximum weekly average≤ 22.7 lb/dMay–Nov001
Nitrogen, ammonia total [as N]maximum weekly average≤ 34 lb/dJan, Feb, Mar, Apr, Dec001
Phosphorus, total [as P]monthly average≤ 1 mg/Lall year001
Phosphorus, total [as P]monthly averagereport only (lb/d)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
E. coli, colony forming units [CFU]monthly geometric mean≤ 125 CFU/100mLApr–Oct001
E. coli, colony forming units [CFU]daily maximum≤ 235 CFU/100mLApr–Oct001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 15 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 141.9 lb/dall year001
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 212.8 lb/dall year001
Flow, totalmonthly totalreport only (Mgal/mo)all year001
Copper, dry weightvaluereport only (mg/kg)Jun, DecPRT
Copper, dry weightvaluereport only (mg/kg)Jun, DecPRT
Cadmium, dry weightvaluereport only (mg/kg)Jun, DecPRT
Cadmium, dry weightvaluereport only (mg/kg)Jun, DecPRT
Molybdenum, sludge, total, dry weight [as Mo]valuereport only (mg/kg)Jun, DecPRT
Molybdenum, sludge, total, dry weight [as Mo]valuereport only (mg/kg)Jun, DecPRT
Zinc, sludge, total, dry weight [as Zn]valuereport only (mg/kg)Jun, DecPRT
Zinc, sludge, total, dry weight [as Zn]valuereport only (mg/kg)Jun, DecPRT
Lead, sludge, total, dry weight [as Pb]valuereport only (mg/kg)Jun, DecPRT
Lead, sludge, total, dry weight [as Pb]valuereport only (mg/kg)Jun, DecPRT
Nickel, sludge, total, dry weight [as Ni]valuereport only (mg/kg)Jun, DecPRT
Nickel, sludge, total, dry weight [as Ni]valuereport only (mg/kg)Jun, DecPRT
Mercury, sludge, total, dry weight [as Hg]valuereport only (mg/kg)Jun, DecPRT
Mercury, sludge, total, dry weight [as Hg]valuereport only (mg/kg)Jun, DecPRT

How strict are these limits?

Cited limits by parameter: Indiana'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/IN0064211 · MCP: https://passage-data.com/mcp