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Sewage treatment plant, major discharger, Valparaiso, Indiana. NPDES permit IN0024660, in force until Sep 30, 2027. Last 12 months: over a limit 2 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| June 2026 | E. coli, colony forming units [CFU], daily maximum | 361 CFU/100mL | ≤ 235 CFU/100mL | 54% |
| June 2026 | E. coli, colony forming units [CFU], monthly geometric mean | 188 CFU/100mL | ≤ 125 CFU/100mL | 50% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | daily minimum | report only (SU) | all year | 002 |
| pH | daily maximum | report only (SU) | all year | 002 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 002 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 002 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| Chlorine, total residual | monthly average | ≤ .01 mg/L | Apr–Oct | 002 |
| Chlorine, total residual | daily maximum | < .06 mg/L | Apr–Oct | 002 |
| E. coli, colony forming units [CFU] | monthly geometric mean | ≤ 125 CFU/100mL | Apr–Oct | 002 |
| E. coli, colony forming units [CFU] | daily maximum | ≤ 235 CFU/100mL | Apr–Oct | 002 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (mg/L) | all year | 002 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (mg/L) | all year | 002 |
| Flow, total | monthly total | report only (Mgal/mo) | all year | 002 |
| Oxygen, dissolved [DO] | daily average minimum | ≥ 6.5 mg/L | Jun–Aug | 005 |
| Oxygen, dissolved [DO] | daily average minimum | ≥ 7 mg/L | Jan, Feb, Mar, Apr, May, Sep, Oct, Nov, Dec | 005 |
| pH | daily minimum | ≥ 6 SU | all year | 005 |
| pH | daily maximum | ≤ 9 SU | all year | 005 |
| Solids, total suspended | monthly average | ≤ 10 mg/L | all year | 005 |
| Solids, total suspended | maximum weekly average | ≤ 15 mg/L | all year | 005 |
| Solids, total suspended | monthly average | ≤ 1502 lb/d | all year | 005 |
| Solids, total suspended | maximum weekly average | ≤ 2253 lb/d | all year | 005 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year | 005 |
| Nitrogen, total [as N] | monthly average | report only (lb/d) | all year | 005 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.2 mg/L | May–Nov | 005 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.4 mg/L | Jan, Feb, Mar, Apr, Dec | 005 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 2.8 mg/L | May–Nov | 005 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 3.1 mg/L | Jan, Feb, Mar, Apr, Dec | 005 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 180 lb/d | May–Nov | 005 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 210 lb/d | Jan, Feb, Mar, Apr, Dec | 005 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 421 lb/d | May–Nov | 005 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 466 lb/d | Jan, Feb, Mar, Apr, Dec | 005 |
| Phosphorus, total [as P] | monthly average | ≤ 1 mg/L | all year | 005 |
| Phosphorus, total [as P] | monthly average | report only (lb/d) | all year | 005 |
| Cyanide, free [as free] | monthly average | ≤ .0044 mg/L | all year | 005 |
| Cyanide, free [as free] | daily maximum | ≤ .0089 mg/L | all year | 005 |
| Cyanide, free [as free] | monthly average | ≤ .29 lb/d | all year | 005 |
| Cyanide, free [as free] | daily maximum | ≤ .59 lb/d | all year | 005 |
| Cyanide, free [as free] | monthly average | report only (mg/L) | all year | 005 |
| Cyanide, free [as free] | daily maximum | report only (mg/L) | all year | 005 |
| Nickel, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 005 |
| Nickel, total recoverable | daily maximum | report only (lb/d) | Mar, Jun, Sep, Dec | 005 |
| Nickel, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 005 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 005 |
| Zinc, total recoverable | daily maximum | report only (lb/d) | Mar, Jun, Sep, Dec | 005 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 005 |
| Cadmium, total recoverable | monthly average | report only (mg/L) | all year | 005 |
| Cadmium, total recoverable | monthly average | ≤ .0021 mg/L | all year | 005 |
| Cadmium, total recoverable | daily maximum | report only (mg/L) | all year | 005 |
| Cadmium, total recoverable | daily maximum | ≤ .0042 mg/L | all year | 005 |
| Cadmium, total recoverable | monthly average | report only (lb/d) | all year | 005 |
| Cadmium, total recoverable | monthly average | ≤ .14 lb/d | all year | 005 |
| Cadmium, total recoverable | daily maximum | report only (lb/d) | all year | 005 |
| Cadmium, total recoverable | daily maximum | ≤ .28 lb/d | all year | 005 |
| Cadmium, total recoverable | monthly average | report only (mg/L) | all year | 005 |
| Cadmium, total recoverable | daily maximum | report only (mg/L) | all year | 005 |
| Lead, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 005 |
| Lead, total recoverable | daily maximum | report only (lb/d) | Mar, Jun, Sep, Dec | 005 |
| Lead, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 005 |
| Chromium, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 005 |
| Chromium, total recoverable | daily maximum | report only (lb/d) | Mar, Jun, Sep, Dec | 005 |
| Chromium, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 005 |
| Copper, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 005 |
| Copper, total recoverable | daily maximum | report only (lb/d) | Mar, Jun, Sep, Dec | 005 |
| Copper, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 005 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 005 |
| E. coli, colony forming units [CFU] | monthly geometric mean | ≤ 125 CFU/100mL | Apr–Oct | 005 |
| E. coli, colony forming units [CFU] | daily maximum | ≤ 235 CFU/100mL | Apr–Oct | 005 |
| Toxicity [acute], Ceriodaphnia dubia | maximum | ≤ 1 tox acute (alert, not enforceable) | Mar, Sep | 005 |
| Toxicity [acute], Ceriodaphnia dubia | maximum | ≤ 1 tox acute (alert, not enforceable) | Apr, Oct | 005 |
| Toxicity [acute], Ceriodaphnia dubia | maximum | ≤ 1 tox acute (alert, not enforceable) | Apr, Oct | 005 |
| Toxicity [chronic], Ceriodaphnia dubia | maximum | ≤ 1.1 tox chronic (alert, not enforceable) | Mar, Sep | 005 |
| Toxicity [chronic], Ceriodaphnia dubia | maximum | ≤ 1.1 tox chronic (alert, not enforceable) | Apr, Oct | 005 |
| Toxicity [chronic], Ceriodaphnia dubia | maximum | ≤ 1.1 tox chronic (alert, not enforceable) | Apr, Oct | 005 |
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | maximum | ≤ 1 tox acute (alert, not enforceable) | Mar, Sep | 005 |
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | maximum | ≤ 1 tox acute (alert, not enforceable) | Apr, Oct | 005 |
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | maximum | ≤ 1 tox acute (alert, not enforceable) | Apr, Oct | 005 |
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | maximum | ≤ 1.1 tox chronic (alert, not enforceable) | Mar, Sep | 005 |
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | maximum | ≤ 1.1 tox chronic (alert, not enforceable) | Apr, Oct | 005 |
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | maximum | ≤ 1.1 tox chronic (alert, not enforceable) | Apr, Oct | 005 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 10 mg/L | all year | 005 |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 15 mg/L | all year | 005 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 1502 lb/d | all year | 005 |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 2253 lb/d | all year | 005 |
| Phosphorus, total percent removal | monthly average minimum | ≥ 75 % | all year | 005 |
| Flow, total | monthly total | report only (Mgal/mo) | all year | 005 |
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/IN0024660 · MCP: https://passage-data.com/mcp