Passage Data · Check a report · Use it from your AI
Sewage treatment plant, major discharger, Elmira, California. NPDES permit CA0077691, in force until Jul 31, 2029. Last 12 months: over a limit 11 times (last August 2026), 1 of 16 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| October 2025 | Cyanide, total [as CN], monthly average | 6.8 ug/L | ≤ 4.3 ug/L | 58% |
| April 2026 | Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia, daily maximum | 1 pass=0;fail=1 | ≤ 0 pass=0;fail=1 | — |
| April 2026 | Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia, monthly median | 1 pass=0;fail=1 | ≤ 0 pass=0;fail=1 | — |
| May 2026 | Cyanide, total [as CN], monthly average | 6.3 ug/L | ≤ 4.3 ug/L | 47% |
| June 2026 | Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia, daily maximum | 1 pass=0;fail=1 | ≤ 0 pass=0;fail=1 | — |
| June 2026 | Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia, monthly median | 1 pass=0;fail=1 | ≤ 0 pass=0;fail=1 | — |
| July 2026 | Cyanide, total [as CN], monthly average | 6.9 ug/L | ≤ 4.3 ug/L | 60% |
| August 2026 | Coliform, total general, 30-day maximum | 79 MPN/100mL | ≤ 23 MPN/100mL | 243% |
| August 2026 | Cyanide, total [as CN], monthly average | 5.3 ug/L | ≤ 4.3 ug/L | 23% |
| August 2026 | Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia, daily maximum | 1 pass=0;fail=1 | ≤ 0 pass=0;fail=1 | — |
| August 2026 | Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia, monthly median | 1 pass=0;fail=1 | ≤ 0 pass=0;fail=1 | — |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. fahrenheit | instantaneous maximum | report only (deg F) | all year | EFF1 |
| Turbidity | monthly average | report only (NTU) | Jan, Feb, Mar, Apr, Nov, Dec | EFF1 |
| Turbidity | daily average | report only (NTU) | May–Oct | EFF1 |
| Turbidity | daily maximum | report only (NTU) | Jan, Feb, Mar, Apr, Nov, Dec | EFF1 |
| Turbidity | maximum | report only (NTU) | May–Oct | EFF1 |
| Specific conductance | daily maximum | report only (umho/cm) | all year | EFF1 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 20 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | EFF1 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 10 mg/L | May–Oct | EFF1 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 25 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | EFF1 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 15 mg/L | May–Oct | EFF1 |
| pH | instantaneous minimum | ≥ 6.5 SU | all year | EFF1 |
| pH | instantaneous maximum | ≤ 8.5 SU | all year | EFF1 |
| Solids, total suspended | monthly average | ≤ 10 mg/L | May–Oct | EFF1 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | EFF1 |
| Solids, total suspended | weekly average | ≤ 15 mg/L | May–Oct | EFF1 |
| Solids, total suspended | weekly average | ≤ 45 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | EFF1 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.7 mg/L | all year | EFF1 |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 3.9 mg/L | all year | EFF1 |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | all year | EFF1 |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | all year | EFF1 |
| Nitrite + Nitrate total [as N] | monthly average | ≤ 13 mg/L | all year | EFF1 |
| Nitrite + Nitrate total [as N] | weekly average | ≤ 15 mg/L | all year | EFF1 |
| Carbon, dissolved organic [as C] | daily maximum | report only (mg/L) | all year | EFF1 |
| Cyanide, total [as CN] | monthly average | ≤ 4.3 ug/L | all year | EFF1 |
| Cyanide, total [as CN] | daily maximum | ≤ 8.5 ug/L | all year | EFF1 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | EFF1 |
| Dichlorobromomethane | monthly average | ≤ 46 ug/L | all year | EFF1 |
| Dichlorobromomethane | daily maximum | ≤ 79 ug/L | all year | EFF1 |
| Carbon tetrachloride | daily maximum | report only (ug/L) | all year | EFF1 |
| Bromoform | daily maximum | report only (ug/L) | all year | EFF1 |
| Dibromochloromethane | monthly average | ≤ 18 ug/L | all year | EFF1 |
| Dibromochloromethane | daily maximum | ≤ 45 ug/L | all year | EFF1 |
| Chloroform | daily maximum | report only (ug/L) | all year | EFF1 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | EFF1 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | EFF1 |
| Chlorine, total residual | 4-day average | ≤ .011 mg/L | all year | EFF1 |
| Chlorine, total residual | 1-hour average | ≤ .019 mg/L | all year | EFF1 |
| Solids, total dissolved | daily maximum | report only (mg/L) | May–Oct | EFF1 |
| Coliform, total general | 7-day median | ≤ 23 MPN/100mL | Jan, Feb, Mar, Apr, Nov, Dec | EFF1 |
| Coliform, total general | instantaneous maximum | ≤ 240 MPN/100mL | May–Oct | EFF1 |
| Coliform, total general | 30-day maximum | ≤ 240 MPN/100mL | Jan, Feb, Mar, Apr, Nov, Dec | EFF1 |
| Coliform, total general | 7-day median | ≤ 2.2 MPN/100mL | May–Oct | EFF1 |
| Coliform, total general | 30-day maximum | ≤ 23 MPN/100mL | May–Oct | EFF1 |
| BOD, 5-day, percent removal | monthly minimum | ≥ 85 % | all year | EFF1 |
| Solids, suspended percent removal | monthly minimum | ≥ 85 % | all year | EFF1 |
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | daily maximum | ≤ 0 pass=0;fail=1 | all year | EFF1 |
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | monthly median | ≤ 0 pass=0;fail=1 | all year | EFF1 |
| Chronic Mthd, Survival Endpt %Effect, Reprod Endpt Median TSTcHo R/nR Pass/Fail, StatR8dmax C dubia | daily maximum | ≤ 50 % effect | all year | EFF1 |
| Specific conductance | daily maximum | report only (umho/cm) | all year | INF1 |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year | INF1 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year | INF1 |
| pH | instantaneous minimum | report only (SU) | all year | INF1 |
| pH | instantaneous maximum | report only (SU) | all year | INF1 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | INF1 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | INF1 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | INF1 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | INF1 |
Cited limits by parameter: California's rules and the federal ones.
· Save this facility as a site · Superfund sites nearby · Your permits on one board
On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/CA0077691 · MCP: https://passage-data.com/mcp