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Sewage treatment plant, major discharger, Morristown, Tennessee. NPDES permit TN0023507, in force until Oct 31, 2029. Last 12 months: over a limit 3 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit |
|---|---|---|---|
| December 2025 | SSO, Dry Weather, monthly total | 1 occur/mo | ≤ 0 occur/mo |
| June 2026 | SSO, Dry Weather, monthly total | 1 occur/mo | ≤ 0 occur/mo |
| August 2026 | SSO, Wet Weather, monthly total | 1 occur/mo | ≤ 0 occur/mo |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Oxygen, dissolved [DO] | daily minimum | ≥ 3 mg/L | all year | 001 |
| Oxygen, dissolved [DO] | daily minimum | ≥ 3 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 40 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 40 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 45 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 45 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 1877 lb/d | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 1877 lb/d | all year | 001 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 3670 lb/d | all year | 001 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 3670 lb/d | all year | 001 |
| pH | minimum | ≥ 6 SU | all year | 001 |
| pH | minimum | ≥ 6 SU | all year | 001 |
| pH | maximum | ≤ 9 SU | all year | 001 |
| pH | maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 001 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 001 |
| Solids, total suspended | weekly average | ≤ 40 mg/L | all year | 001 |
| Solids, total suspended | weekly average | ≤ 40 mg/L | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 45 mg/L | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 45 mg/L | all year | 001 |
| Solids, total suspended | monthly average | ≤ 1877 lb/d | all year | 001 |
| Solids, total suspended | monthly average | ≤ 1877 lb/d | all year | 001 |
| Solids, total suspended | weekly average | ≤ 3670 lb/d | all year | 001 |
| Solids, total suspended | weekly average | ≤ 3670 lb/d | all year | 001 |
| Solids, settleable | daily maximum | ≤ 1 mL/L | all year | 001 |
| Solids, settleable | daily maximum | ≤ 1 mL/L | all year | 001 |
| Nitrogen, total [as N] | quarterly average | report only (mg/L) | Mar, Jun, Sep, Dec | 001 |
| Nitrogen, total [as N] | quarterly average | report only (mg/L) | Mar, Jun, Sep, Dec | 001 |
| Nitrogen, total [as N] | quarterly average | report only (lb/d) | Mar, Jun, Sep, Dec | 001 |
| Nitrogen, total [as N] | quarterly average | report only (lb/d) | Mar, Jun, Sep, Dec | 001 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | quarterly average | report only (mg/L) | Mar, Jun, Sep, Dec | 001 |
| Phosphorus, total [as P] | quarterly average | report only (mg/L) | Mar, Jun, Sep, Dec | 001 |
| Phosphorus, total [as P] | quarterly average | report only (lb/d) | Mar, Jun, Sep, Dec | 001 |
| Phosphorus, total [as P] | quarterly average | report only (lb/d) | Mar, Jun, Sep, Dec | 001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| Chlorine, total residual | monthly average | ≤ .33 mg/L | all year | 001 |
| Chlorine, total residual | monthly average | ≤ .33 mg/L | all year | 001 |
| Chlorine, total residual | daily maximum | ≤ .57 mg/L | all year | 001 |
| Chlorine, total residual | daily maximum | ≤ .57 mg/L | all year | 001 |
| E. coli | monthly geometric mean | ≤ 126 #/100mL | all year | 001 |
| E. coli | monthly geometric mean | ≤ 126 #/100mL | all year | 001 |
| E. coli | daily maximum | ≤ 410 #/100mL | all year | 001 |
| E. coli | daily maximum | ≤ 410 #/100mL | all year | 001 |
| SSO, Dry Weather | monthly total | ≤ 0 occur/mo | all year | 001 |
| SSO, Dry Weather | monthly total | ≤ 0 occur/mo | all year | 001 |
| SSO, Wet Weather | monthly total | ≤ 0 occur/mo | all year | 001 |
| SSO, Wet Weather | monthly total | ≤ 0 occur/mo | all year | 001 |
| BOD, 5-day, percent removal | daily minimum | ≥ 40 % | all year | 001 |
| BOD, 5-day, percent removal | daily minimum | ≥ 40 % | all year | 001 |
| BOD, 5-day, percent removal | monthly average minimum | ≥ 85 % | all year | 001 |
| BOD, 5-day, percent removal | monthly average minimum | ≥ 85 % | all year | 001 |
| Solids, suspended percent removal | daily minimum | ≥ 40 % | all year | 001 |
| Solids, suspended percent removal | daily minimum | ≥ 40 % | all year | 001 |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year | 001 |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year | 001 |
| IC25 Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | minimum | ≥ 3.3 % | all year | 001 |
| IC25 Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | minimum | ≥ 3.3 % | all year | 001 |
| IC25 Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | minimum | ≥ 3.3 % | all year | 001 |
| IC25 Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | minimum | ≥ 3.3 % | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year | INF1 |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | 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 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year | INF1 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year | INF1 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | INF1 |
| Solids, total suspended | monthly average | report only (mg/L) | 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 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | INF1 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | INF1 |
| Nitrogen, total [as N] | quarterly average | report only (mg/L) | Mar, Jun, Sep, Dec | INF1 |
| Nitrogen, total [as N] | quarterly average | report only (mg/L) | Mar, Jun, Sep, Dec | INF1 |
| Nitrogen, total [as N] | quarterly average | report only (mg/L) | Mar, Jun, Sep, Dec | INF1 |
| Nitrogen, total [as N] | quarterly average | report only (lb/d) | Mar, Jun, Sep, Dec | INF1 |
| Nitrogen, total [as N] | quarterly average | report only (lb/d) | Mar, Jun, Sep, Dec | INF1 |
| Nitrogen, total [as N] | quarterly average | report only (lb/d) | Mar, Jun, Sep, Dec | INF1 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | INF1 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | INF1 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | INF1 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | INF1 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | INF1 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | INF1 |
| Phosphorus, total [as P] | quarterly average | report only (mg/L) | Mar, Jun, Sep, Dec | INF1 |
| Phosphorus, total [as P] | quarterly average | report only (mg/L) | Mar, Jun, Sep, Dec | INF1 |
| Phosphorus, total [as P] | quarterly average | report only (mg/L) | Mar, Jun, Sep, Dec | INF1 |
| Phosphorus, total [as P] | quarterly average | report only (lb/d) | Mar, Jun, Sep, Dec | INF1 |
| Phosphorus, total [as P] | quarterly average | report only (lb/d) | Mar, Jun, Sep, Dec | INF1 |
| Phosphorus, total [as P] | quarterly average | report only (lb/d) | Mar, Jun, Sep, Dec | INF1 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | 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 | monthly average | report only (MGD) | all year | INF1 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | INF1 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | INF1 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | INF1 |
| Parameter | New limit | New or tighter | Median, last 12 months | × new limit |
|---|---|---|---|---|
| Nitrogen, ammonia total [as N], daily maximum | 169 mg/L (Jan, Feb, Mar, Apr, Nov, Dec) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 103 mg/L (May–Oct) | new | — | — |
| Nitrogen, ammonia total [as N], monthly average | 43.7 mg/L (Jan, Feb, Mar, Apr, Nov, Dec) | new | — | — |
| Nitrogen, ammonia total [as N], monthly average | 20.8 mg/L (May–Oct) | new | — | — |
Cited limits by parameter: Tennessee'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/TN0023507 · MCP: https://passage-data.com/mcp