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Gasoline Service Stations, Knoxville, Tennessee. NPDES permit TN0064351, in force until Nov 30, 2029. Last 12 months: over a limit 24 times (last September 2026), 1 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| October 2025 | Chemical Oxygen Demand [COD], daily maximum | 83.7 mg/L | ≤ 45 mg/L | 86% |
| October 2025 | Nitrogen, ammonia total [as N], daily maximum | 2.41 mg/L | ≤ .56 mg/L | 330% |
| November 2025 | Chemical Oxygen Demand [COD], daily maximum | 47 mg/L | ≤ 45 mg/L | 4% |
| November 2025 | E. coli, daily maximum | 720 #/100mL | ≤ 410 #/100mL | 76% |
| December 2025 | Nitrogen, ammonia total [as N], daily maximum | 3.27 mg/L | ≤ 1.07 mg/L | 206% |
| January 2026 | Chemical Oxygen Demand [COD], daily maximum | 77.7 mg/L | ≤ 45 mg/L | 73% |
| January 2026 | E. coli, daily maximum | 2300 #/100mL | ≤ 410 #/100mL | 461% |
| January 2026 | Nitrogen, ammonia total [as N], daily maximum | 1.56 mg/L | ≤ 1.07 mg/L | 46% |
| January 2026 | Solids, total suspended, daily maximum | 42 mg/L | ≤ 40 mg/L | 5% |
| February 2026 | Nitrogen, ammonia total [as N], daily maximum | 1.51 mg/L | ≤ 1.07 mg/L | 41% |
| April 2026 | Chemical Oxygen Demand [COD], daily maximum | 81.4 mg/L | ≤ 45 mg/L | 81% |
| April 2026 | Nitrogen, ammonia total [as N], daily maximum | 2.65 mg/L | ≤ 1.07 mg/L | 148% |
| May 2026 | Chemical Oxygen Demand [COD], daily maximum | 47 mg/L | ≤ 45 mg/L | 4% |
| May 2026 | E. coli, daily maximum | 17000 #/100mL | ≤ 410 #/100mL | 4046% |
| June 2026 | Chemical Oxygen Demand [COD], daily maximum | 51.9 mg/L | ≤ 45 mg/L | 15% |
| June 2026 | E. coli, daily maximum | 560 #/100mL | ≤ 410 #/100mL | 37% |
| June 2026 | Nitrogen, ammonia total [as N], daily maximum | .861 mg/L | ≤ .56 mg/L | 54% |
| July 2026 | Chemical Oxygen Demand [COD], daily maximum | 58.7 mg/L | ≤ 45 mg/L | 30% |
| July 2026 | E. coli, daily maximum | 1400 #/100mL | ≤ 410 #/100mL | 241% |
| July 2026 | Nitrogen, ammonia total [as N], daily maximum | 2.34 mg/L | ≤ .56 mg/L | 318% |
| August 2026 | E. coli, daily maximum | 750 #/100mL | ≤ 410 #/100mL | 83% |
| September 2026 | Chemical Oxygen Demand [COD], daily maximum | 51.6 mg/L | ≤ 45 mg/L | 15% |
| September 2026 | E. coli, daily maximum | 2900 #/100mL | ≤ 410 #/100mL | 607% |
| September 2026 | Nitrogen, ammonia total [as N], daily maximum | 3.32 mg/L | ≤ .56 mg/L | 493% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| pH | daily minimum | ≥ 6 SU | all year |
| pH | maximum | ≤ 9 SU | all year |
| Solids, total suspended | daily maximum | ≤ 40 mg/L | all year |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ .56 mg/L | May–Oct |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 1.07 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| Oil and grease | daily maximum | ≤ 15 mg/L | all year |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year |
| E. coli | daily maximum | ≤ 410 #/100mL | all year |
| Chemical Oxygen Demand [COD] | daily maximum | ≤ 45 mg/L | all year |
Cited limits by parameter: Tennessee's rules and the federal ones.
Same industry: the 13 Automotive Dealers and Gasoline Service Stations permits in Tennessee.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/TN0064351 · MCP: https://passage-data.com/mcp