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Sewage treatment plant, Pleasanton, California. NPDES permit CA0038679, in force until Sep 30, 2031. Last 12 months: over a limit once (last November 2025), 22 of 23 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| November 2025 | Chlorine, total residual, 1-hour average | .12 mg/L | ≤ .019 mg/L | 532% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | instantaneous minimum | ≥ 6.5 SU | all year | EFF2 |
| pH | instantaneous minimum | ≥ 6.5 SU | all year | EFF2 |
| pH | instantaneous minimum | ≥ 6.5 SU | all year | EFF2 |
| pH | instantaneous maximum | ≤ 8.5 SU | all year | EFF2 |
| pH | instantaneous maximum | ≤ 8.5 SU | all year | EFF2 |
| pH | instantaneous maximum | ≤ 8.5 SU | all year | EFF2 |
| Solids, total suspended | weekly average | ≤ 45 mg/L | all year | EFF2 |
| Solids, total suspended | weekly average | ≤ 45 mg/L | all year | EFF2 |
| Solids, total suspended | weekly average | ≤ 45 mg/L | all year | EFF2 |
| Lead, total recoverable | monthly average | ≤ 8.4 ug/L | all year | EFF2 |
| Lead, total recoverable | monthly average | ≤ 8.4 ug/L | all year | EFF2 |
| Lead, total recoverable | monthly average | ≤ 8.4 ug/L | all year | EFF2 |
| Lead, total recoverable | daily maximum | ≤ 17 ug/L | all year | EFF2 |
| Lead, total recoverable | daily maximum | ≤ 17 ug/L | all year | EFF2 |
| Lead, total recoverable | daily maximum | ≤ 17 ug/L | all year | EFF2 |
| Chlorine, total residual | 1-hour average | ≤ .019 mg/L | all year | EFF2 |
| Chlorine, total residual | 1-hour average | ≤ .019 mg/L | all year | EFF2 |
| Chlorine, total residual | 1-hour average | ≤ .019 mg/L | all year | EFF2 |
| E. coli | daily maximum | ≤ 320 CFU/100mL | all year | EFF2 |
| E. coli | daily maximum | ≤ 320 CFU/100mL | all year | EFF2 |
| E. coli | daily maximum | ≤ 320 CFU/100mL | all year | EFF2 |
| Volume, total | daily maximum | report only (gal) | all year | EFF2 |
| Volume, total | daily maximum | report only (gal) | all year | EFF2 |
| Volume, total | daily maximum | report only (gal) | all year | EFF2 |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 40 mg/L | all year | EFF2 |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 40 mg/L | all year | EFF2 |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 40 mg/L | all year | EFF2 |
| Duration of discharge | daily maximum | report only (min) | all year | EFF2 |
| Duration of discharge | daily maximum | report only (min) | all year | EFF2 |
| Duration of discharge | daily maximum | report only (min) | all year | EFF2 |
| pH | instantaneous minimum | ≥ 6.5 SU | all year | EFF3 |
| pH | instantaneous minimum | ≥ 6.5 SU | all year | EFF3 |
| pH | instantaneous minimum | ≥ 6.5 SU | all year | EFF3 |
| pH | instantaneous maximum | ≤ 8.5 SU | all year | EFF3 |
| pH | instantaneous maximum | ≤ 8.5 SU | all year | EFF3 |
| pH | instantaneous maximum | ≤ 8.5 SU | all year | EFF3 |
| Solids, total suspended | weekly average | ≤ 45 mg/L | all year | EFF3 |
| Solids, total suspended | weekly average | ≤ 45 mg/L | all year | EFF3 |
| Solids, total suspended | weekly average | ≤ 45 mg/L | all year | EFF3 |
| Lead, total recoverable | monthly average | ≤ 8.4 ug/L | all year | EFF3 |
| Lead, total recoverable | monthly average | ≤ 8.4 ug/L | all year | EFF3 |
| Lead, total recoverable | monthly average | ≤ 8.4 ug/L | all year | EFF3 |
| Lead, total recoverable | daily maximum | ≤ 17 ug/L | all year | EFF3 |
| Lead, total recoverable | daily maximum | ≤ 17 ug/L | all year | EFF3 |
| Lead, total recoverable | daily maximum | ≤ 17 ug/L | all year | EFF3 |
| Chlorine, total residual | 1-hour average | ≤ .019 mg/L | all year | EFF3 |
| Chlorine, total residual | 1-hour average | ≤ .019 mg/L | all year | EFF3 |
| Chlorine, total residual | 1-hour average | ≤ .019 mg/L | all year | EFF3 |
| E. coli | daily maximum | ≤ 320 CFU/100mL | all year | EFF3 |
| E. coli | daily maximum | ≤ 320 CFU/100mL | all year | EFF3 |
| E. coli | daily maximum | ≤ 320 CFU/100mL | all year | EFF3 |
| Volume, total | daily maximum | report only (gal) | all year | EFF3 |
| Volume, total | daily maximum | report only (gal) | all year | EFF3 |
| Volume, total | daily maximum | report only (gal) | all year | EFF3 |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 40 mg/L | all year | EFF3 |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 40 mg/L | all year | EFF3 |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 40 mg/L | all year | EFF3 |
| Duration of discharge | daily maximum | report only (min) | all year | EFF3 |
| Duration of discharge | daily maximum | report only (min) | all year | EFF3 |
| Duration of discharge | daily maximum | report only (min) | all year | EFF3 |
Cited limits by parameter: California'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/CA0038679 · MCP: https://passage-data.com/mcp