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Carriage Estates III WWTP

Subdividers And Developers, major discharger, West Lafayette, Indiana. NPDES permit IN0043273, in force until Jan 31, 2031. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (23 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 1 of 14 reports late

Limits in force (44)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]daily average minimum≥ 6 mg/LMay–Nov
Oxygen, dissolved [DO]daily average minimum≥ 5 mg/LJan, Feb, Mar, Apr, Dec
pHdaily minimum≥ 6 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/LJan, Feb, Mar, Apr, Dec
Solids, total suspendedmonthly average≤ 17 mg/LMay–Nov
Solids, total suspendedmaximum weekly average≤ 45 mg/LJan, Feb, Mar, Apr, Dec
Solids, total suspendedmaximum weekly average≤ 26 mg/LMay–Nov
Solids, total suspendedmonthly average≤ 751.1 lb/dJan, Feb, Mar, Apr, Dec
Solids, total suspendedmonthly average≤ 425.6 lb/dMay–Nov
Solids, total suspendedmaximum weekly average≤ 1126.6 lb/dJan, Feb, Mar, Apr, Dec
Solids, total suspendedmaximum weekly average≤ 650.9 lb/dMay–Nov
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, total [as N]monthly averagereport only (lb/d)all year
Nitrogen, ammonia total [as N]monthly average≤ 1.2 mg/LMay–Nov
Nitrogen, ammonia total [as N]monthly average≤ 1.8 mg/LJan, Feb, Mar, Apr, Dec
Nitrogen, ammonia total [as N]maximum weekly average≤ 1.8 mg/LMay–Nov
Nitrogen, ammonia total [as N]maximum weekly average≤ 2.7 mg/LJan, Feb, Mar, Apr, Dec
Nitrogen, ammonia total [as N]monthly average≤ 30 lb/dMay–Nov
Nitrogen, ammonia total [as N]monthly average≤ 45.1 lb/dJan, Feb, Mar, Apr, Dec
Nitrogen, ammonia total [as N]maximum weekly average≤ 45.1 lb/dMay–Nov
Nitrogen, ammonia total [as N]maximum weekly average≤ 67.6 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
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
Toxicity [acute], Ceriodaphnia dubiamaximum≤ 1 tox acuteAug
Toxicity [acute], Ceriodaphnia dubiamaximum≤ 1 tox acuteJul
Toxicity [chronic], Ceriodaphnia dubiamaximum≤ 1 tox chronicAug
Toxicity [chronic], Ceriodaphnia dubiamaximum≤ 1 tox chronicJul
Toxicity [acute], Pimephales promelas [Fathead Minnow]maximum≤ 1 tox acuteAug
Toxicity [acute], Pimephales promelas [Fathead Minnow]maximum≤ 1 tox acuteJul
Toxicity [chronic], Pimephales promelas [Fathead Minnow]maximum≤ 1 tox chronicAug
Toxicity [chronic], Pimephales promelas [Fathead Minnow]maximum≤ 1 tox chronicJul
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/LJan, Feb, Mar, Apr, Dec
BOD, carbonaceous [5 day, 20 C]monthly average≤ 14 mg/LMay–Nov
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 40 mg/LJan, Feb, Mar, Apr, Dec
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 21 mg/LMay–Nov
BOD, carbonaceous [5 day, 20 C]monthly average≤ 625.9 lb/dJan, Feb, Mar, Apr, Dec
BOD, carbonaceous [5 day, 20 C]monthly average≤ 350.5 lb/dMay–Nov
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 1001.4 lb/dJan, Feb, Mar, Apr, Dec
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 525.7 lb/dMay–Nov
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.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/IN0043273 · MCP: https://passage-data.com/mcp