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Mooresville WWTP, Town of

Sewage treatment plant, major discharger, Mooresville, Indiana. NPDES permit IN0023825, in force until Jan 31, 2031. Last 12 months: over a limit 68 times (last August 2026), 9 required values missing, 3 of 26 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form A monthly (27 values), outfall 002 form A monthly (25 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
15 values over a limit, 0 required values missing, 1 of 28 reports late

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

All 68 values over a limit
Period endingOutfallParameterReportedLimitOver by
October 2025001BOD, carbonaceous [5 day, 20 C], monthly average22 mg/L≤ 20 mg/L10%
October 2025001BOD, carbonaceous [5 day, 20 C], maximum weekly average643 lb/d≤ 626 lb/d3%
October 2025001BOD, carbonaceous [5 day, 20 C], maximum weekly average72 mg/L≤ 30 mg/L140%
October 2025001E. coli, colony forming units [CFU], daily maximum2420 CFU/100mL≤ 235 CFU/100mL930%
October 2025001Nitrogen, ammonia total [as N], monthly average3.7 mg/L≤ 1.5 mg/L147%
October 2025001Nitrogen, ammonia total [as N], monthly average32.8 lb/d≤ 31.3 lb/d5%
October 2025001Nitrogen, ammonia total [as N], maximum weekly average73.1 lb/d≤ 45.9 lb/d59%
October 2025001Nitrogen, ammonia total [as N], maximum weekly average8.1 mg/L≤ 2.2 mg/L268%
October 2025001Oxygen, dissolved [DO], daily average minimum3.3 mg/L≥ 6 mg/L45%
October 2025001Solids, total suspended, monthly average700 lb/d≤ 501 lb/d40%
October 2025001Solids, total suspended, monthly average77 mg/L≤ 24 mg/L221%
October 2025001Solids, total suspended, maximum weekly average2610 lb/d≤ 751 lb/d248%
October 2025001Solids, total suspended, maximum weekly average293 mg/L≤ 36 mg/L714%
November 2025001BOD, carbonaceous [5 day, 20 C], monthly average84.7 mg/L≤ 20 mg/L324%
November 2025001BOD, carbonaceous [5 day, 20 C], monthly average872 lb/d≤ 417 lb/d109%
November 2025001BOD, carbonaceous [5 day, 20 C], maximum weekly average178 mg/L≤ 30 mg/L493%
November 2025001BOD, carbonaceous [5 day, 20 C], maximum weekly average1878 lb/d≤ 626 lb/d200%
November 2025001Nitrogen, ammonia total [as N], monthly average3.1 mg/L≤ 1.5 mg/L107%
November 2025001Nitrogen, ammonia total [as N], maximum weekly average4.8 mg/L≤ 2.2 mg/L118%
November 2025001Nitrogen, ammonia total [as N], maximum weekly average49.7 lb/d≤ 45.9 lb/d8%
November 2025001Oxygen, dissolved [DO], daily average minimum4.3 mg/L≥ 6 mg/L28%
November 2025001Phosphorus, total [as P], monthly average2.98 mg/L≤ 1 mg/L198%
November 2025001Solids, total suspended, monthly average264.3 mg/L≤ 24 mg/L1001%
November 2025001Solids, total suspended, monthly average2720 lb/d≤ 501 lb/d443%
November 2025001Solids, total suspended, maximum weekly average5866 lb/d≤ 751 lb/d681%
November 2025001Solids, total suspended, maximum weekly average686.6 mg/L≤ 36 mg/L1807%
January 2026001Cyanide, free [as free], daily maximum.024 mg/L≤ .013 mg/L85%
January 2026001Cyanide, free [as free], monthly average.013 mg/L≤ .0064 mg/L103%
February 2026001Solids, total suspended, monthly average47 mg/L≤ 30 mg/L57%
February 2026001Solids, total suspended, maximum weekly average1363 lb/d≤ 939 lb/d45%
February 2026001Solids, total suspended, maximum weekly average166 mg/L≤ 45 mg/L269%
March 2026001Cyanide, free [as free], monthly average.008 mg/L≤ .0064 mg/L25%
March 2026001Nitrogen, ammonia total [as N], maximum weekly average3.7 mg/L≤ 3.3 mg/L12%
March 2026001Solids, total suspended, monthly average37 mg/L≤ 30 mg/L23%
March 2026001Solids, total suspended, monthly average808 lb/d≤ 626 lb/d29%
March 2026001Solids, total suspended, maximum weekly average110.6 mg/L≤ 45 mg/L146%
March 2026001Solids, total suspended, maximum weekly average1707 lb/d≤ 939 lb/d82%
March 2026002Cyanide, free [as free], monthly average.0075 mg/L≤ .0069 mg/L9%
March 2026002Solids, total suspended, monthly average32 mg/L≤ 30 mg/L7%
March 2026002Solids, total suspended, monthly average506 lb/d≤ 250 lb/d102%
March 2026002Solids, total suspended, maximum weekly average46 mg/L≤ 45 mg/L2%
March 2026002Solids, total suspended, maximum weekly average796 lb/d≤ 376 lb/d112%
April 2026001Nitrogen, ammonia total [as N], maximum weekly average4.72 mg/L≤ 3.3 mg/L43%
May 2026001Solids, total suspended, maximum weekly average37 mg/L≤ 36 mg/L3%
May 2026002Solids, total suspended, monthly average30 mg/L≤ 24 mg/L25%
May 2026002Solids, total suspended, maximum weekly average64 mg/L≤ 36 mg/L78%
July 2026001E. coli, colony forming units [CFU], daily maximum2419 CFU/100mL≤ 235 CFU/100mL929%
July 2026001Oxygen, dissolved [DO], daily average minimum5.2 mg/L≥ 6 mg/L13%
July 2026001Phosphorus, total [as P], monthly average1.23 mg/L≤ 1 mg/L23%
July 2026001Solids, total suspended, monthly average67.6 mg/L≤ 24 mg/L182%
July 2026001Solids, total suspended, monthly average701 lb/d≤ 501 lb/d40%
July 2026001Solids, total suspended, maximum weekly average223 mg/L≤ 36 mg/L519%
July 2026001Solids, total suspended, maximum weekly average2252 lb/d≤ 751 lb/d200%
August 2026001E. coli, colony forming units [CFU], daily maximum2420 CFU/100mL≤ 235 CFU/100mL930%
August 2026001Nitrogen, ammonia total [as N], monthly average2.43 mg/L≤ 1.5 mg/L62%
August 2026001Nitrogen, ammonia total [as N], monthly average40.1 lb/d≤ 31.3 lb/d28%
August 2026001Nitrogen, ammonia total [as N], maximum weekly average125.2 lb/d≤ 45.9 lb/d173%
August 2026001Nitrogen, ammonia total [as N], maximum weekly average5.9 mg/L≤ 2.2 mg/L168%
August 2026001Oxygen, dissolved [DO], daily average minimum5.4 mg/L≥ 6 mg/L10%
August 2026001Solids, total suspended, monthly average52 mg/L≤ 24 mg/L117%
August 2026001Solids, total suspended, monthly average678.4 lb/d≤ 501 lb/d35%
August 2026001Solids, total suspended, maximum weekly average120.5 mg/L≤ 36 mg/L235%
August 2026001Solids, total suspended, maximum weekly average1515 lb/d≤ 751 lb/d102%
August 2026001pH, daily maximum9.2 SU≤ 9 SU—
August 2026002E. coli, colony forming units [CFU], daily maximum2420 CFU/100mL≤ 235 CFU/100mL930%
August 2026002Nitrogen, ammonia total [as N], monthly average14.5 mg/L≤ 1.4 mg/L936%
August 2026002Nitrogen, ammonia total [as N], maximum weekly average14.5 mg/L≤ 2.1 mg/L590%
August 2026002Solids, total suspended, monthly average29 mg/L≤ 24 mg/L21%

Limits in force (104)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]daily average minimum≥ 6 mg/LMay–Nov001
Oxygen, dissolved [DO]daily average minimum≥ 4 mg/LJan, Feb, Mar, Apr, Dec001
pHdaily minimum≥ 6 SUall year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/LJan, Feb, Mar, Apr, Dec001
Solids, total suspendedmonthly average≤ 24 mg/LMay–Nov001
Solids, total suspendedmaximum weekly average≤ 45 mg/LJan, Feb, Mar, Apr, Dec001
Solids, total suspendedmaximum weekly average≤ 36 mg/LMay–Nov001
Solids, total suspendedmonthly average≤ 626 lb/dJan, Feb, Mar, Apr, Dec001
Solids, total suspendedmonthly average≤ 501 lb/dMay–Nov001
Solids, total suspendedmaximum weekly average≤ 939 lb/dJan, Feb, Mar, Apr, Dec001
Solids, total suspendedmaximum weekly average≤ 751 lb/dMay–Nov001
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≤ 1.5 mg/LMay–Nov001
Nitrogen, ammonia total [as N]monthly average≤ 2.2 mg/LJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]maximum weekly average≤ 2.2 mg/LMay–Nov001
Nitrogen, ammonia total [as N]maximum weekly average≤ 3.3 mg/LJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 31.3 lb/dMay–Nov001
Nitrogen, ammonia total [as N]monthly average≤ 45.9 lb/dJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]maximum weekly average≤ 45.9 lb/dMay–Nov001
Nitrogen, ammonia total [as N]maximum weekly average≤ 68.8 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
Cyanide, free [as free]monthly average≤ .0064 mg/Lall year001
Cyanide, free [as free]daily maximum≤ .013 mg/Lall year001
Cyanide, free [as free]monthly averagereport only (mg/L)all year001
Cyanide, free [as free]daily maximumreport only (mg/L)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
Toxicity [acute], Ceriodaphnia dubiamaximum≤ 1 tox acuteFeb001
Toxicity [acute], Ceriodaphnia dubiamaximum≤ 1 tox acuteFeb001
Toxicity [acute], Ceriodaphnia dubiamaximum≤ 1 tox acute (alert, not enforceable)Jan001
Toxicity [chronic], Ceriodaphnia dubiamaximum≤ 1.3 tox chronicFeb001
Toxicity [chronic], Ceriodaphnia dubiamaximum≤ 1.3 tox chronicFeb001
Toxicity [chronic], Ceriodaphnia dubiamaximum≤ 1.3 tox chronic (alert, not enforceable)Jan001
Toxicity [acute], Pimephales promelas [Fathead Minnow]maximum≤ 1 tox acuteFeb001
Toxicity [acute], Pimephales promelas [Fathead Minnow]maximum≤ 1 tox acuteFeb001
Toxicity [acute], Pimephales promelas [Fathead Minnow]maximum≤ 1 tox acute (alert, not enforceable)Jan001
Toxicity [chronic], Pimephales promelas [Fathead Minnow]maximum≤ 1.3 tox chronicFeb001
Toxicity [chronic], Pimephales promelas [Fathead Minnow]maximum≤ 1.3 tox chronicFeb001
Toxicity [chronic], Pimephales promelas [Fathead Minnow]maximum≤ 1.3 tox chronic (alert, not enforceable)Jan001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/LJan, Feb, Mar, Apr, Dec001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 20 mg/LMay–Nov001
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 40 mg/LJan, Feb, Mar, Apr, Dec001
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 30 mg/LMay–Nov001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 522 lb/dJan, Feb, Mar, Apr, Dec001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 417 lb/dMay–Nov001
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 835 lb/dJan, Feb, Mar, Apr, Dec001
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 626 lb/dMay–Nov001
Flow, totalmonthly totalreport only (Mgal/mo)all year001
Oxygen, dissolved [DO]daily average minimum≥ 6 mg/LMay–Nov002
Oxygen, dissolved [DO]daily average minimum≥ 4 mg/LJan, Feb, Mar, Apr, Dec002
pHdaily minimum≥ 6 SUall year002
pHdaily maximum≤ 9 SUall year002
Solids, total suspendedmonthly average≤ 30 mg/LJan, Feb, Mar, Apr, Dec002
Solids, total suspendedmonthly average≤ 24 mg/LMay–Nov002
Solids, total suspendedmaximum weekly average≤ 45 mg/LJan, Feb, Mar, Apr, Dec002
Solids, total suspendedmaximum weekly average≤ 36 mg/LMay–Nov002
Solids, total suspendedmonthly average≤ 250 lb/dJan, Feb, Mar, Apr, Dec002
Solids, total suspendedmonthly average≤ 200 lb/dMay–Nov002
Solids, total suspendedmaximum weekly average≤ 376 lb/dJan, Feb, Mar, Apr, Dec002
Solids, total suspendedmaximum weekly average≤ 300 lb/dMay–Nov002
Nitrogen, total [as N]monthly averagereport only (mg/L)all year002
Nitrogen, total [as N]monthly averagereport only (lb/d)all year002
Nitrogen, ammonia total [as N]monthly average≤ 1.4 mg/LMay–Nov002
Nitrogen, ammonia total [as N]monthly average≤ 2.2 mg/LJan, Feb, Mar, Apr, Dec002
Nitrogen, ammonia total [as N]maximum weekly average≤ 2.1 mg/LMay–Nov002
Nitrogen, ammonia total [as N]maximum weekly average≤ 3.3 mg/LJan, Feb, Mar, Apr, Dec002
Nitrogen, ammonia total [as N]monthly average≤ 11.7 lb/dMay–Nov002
Nitrogen, ammonia total [as N]monthly average≤ 18.4 lb/dJan, Feb, Mar, Apr, Dec002
Nitrogen, ammonia total [as N]maximum weekly average≤ 17.5 lb/dMay–Nov002
Nitrogen, ammonia total [as N]maximum weekly average≤ 27.5 lb/dJan, Feb, Mar, Apr, Dec002
Phosphorus, total [as P]monthly average≤ 1 mg/Lall year002
Phosphorus, total [as P]monthly averagereport only (lb/d)all year002
Cyanide, free [as free]monthly average≤ .0069 mg/Lall year002
Cyanide, free [as free]daily maximum≤ .014 mg/Lall year002
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year002
E. coli, colony forming units [CFU]monthly geometric mean≤ 125 CFU/100mLApr–Oct002
E. coli, colony forming units [CFU]daily maximum≤ 235 CFU/100mLApr–Oct002
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/LJan, Feb, Mar, Apr, Dec002
BOD, carbonaceous [5 day, 20 C]monthly average≤ 20 mg/LMay–Nov002
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 40 mg/LJan, Feb, Mar, Apr, Dec002
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 30 mg/LMay–Nov002
BOD, carbonaceous [5 day, 20 C]monthly average≤ 209 lb/dJan, Feb, Mar, Apr, Dec002
BOD, carbonaceous [5 day, 20 C]monthly average≤ 167 lb/dMay–Nov002
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 354 lb/dJan, Feb, Mar, Apr, Dec002
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 250 lb/dMay–Nov002
Flow, totalmonthly totalreport only (Mgal/mo)all year002
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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Your permit document is the final word. As JSON: /api/v1/permits/IN0023825 · MCP: https://passage-data.com/mcp