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Agricultural Chemicals, Memphis, Tennessee. NPDES permit TN0058831, in force until Jun 30, 2031. Last 12 months: over a limit 8 times (last February 2026), 10 required values missing. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| November 2025 | Chlorine, total residual, daily maximum | .99 mg/L | ≤ .019 mg/L | 5111% |
| November 2025 | Chlorine, total residual, monthly average | .82 mg/L | ≤ .011 mg/L | 7355% |
| December 2025 | Chlorine, total residual, daily maximum | .73 mg/L | ≤ .019 mg/L | 3742% |
| December 2025 | Chlorine, total residual, monthly average | .73 mg/L | ≤ .011 mg/L | 6536% |
| January 2026 | Chlorine, total residual, daily maximum | .76 mg/L | ≤ .019 mg/L | 3900% |
| January 2026 | Chlorine, total residual, monthly average | .45 mg/L | ≤ .011 mg/L | 3991% |
| February 2026 | Chlorine, total residual, daily maximum | .84 mg/L | ≤ .019 mg/L | 4321% |
| February 2026 | Chlorine, total residual, monthly average | .83 mg/L | ≤ .011 mg/L | 7445% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. centigrade | monthly average | report only (deg C) | all year | 001 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | 001 |
| pH | daily minimum | ≥ 6 SU | all year | 001 |
| pH | maximum | ≤ 9 SU | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .41 mg/L | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .78 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .7 lb/d | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.3 lb/d | Jan, Feb, Mar, Apr, Nov, Dec | 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 |
| Chlorine, total residual | monthly average | ≤ .011 mg/L | all year | 001 |
| Chlorine, total residual | daily maximum | ≤ .019 mg/L | all year | 001 |
| IC25 Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | minimum | ≥ 100 % | all year | 001 |
| IC25 Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | minimum | ≥ 100 % | all year | 001 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 30 mg/L (alert, not enforceable) | all year | SW1 |
| pH | daily minimum | report only (SU) | all year | SW1 |
| pH | maximum | report only (SU) | all year | SW1 |
| Solids, total suspended | daily maximum | ≤ 100 mg/L (alert, not enforceable) | all year | SW1 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 1.7 mg/L (alert, not enforceable) | all year | SW1 |
| Nitrite + Nitrate total [as N] | daily maximum | ≤ .68 mg/L (alert, not enforceable) | all year | SW1 |
| Phosphorus, total [as P] | daily maximum | ≤ 2 mg/L (alert, not enforceable) | all year | SW1 |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year | SW1 |
| Lead, total [as Pb] | daily maximum | ≤ .075 mg/L (alert, not enforceable) | all year | SW1 |
| Zinc, total [as Zn] | daily maximum | ≤ .126 mg/L (alert, not enforceable) | all year | SW1 |
| Oil and grease | daily maximum | ≤ 15 mg/L (alert, not enforceable) | all year | SW1 |
| Intermittent discharge-assessment | value | report only (N=0;Y=1) (alert, not enforceable) | all year | SW1 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | SW1 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | SW1 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 30 mg/L (alert, not enforceable) | all year | SW2 |
| pH | daily minimum | report only (SU) | all year | SW2 |
| pH | maximum | report only (SU) | all year | SW2 |
| Solids, total suspended | daily maximum | ≤ 100 mg/L (alert, not enforceable) | all year | SW2 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 1.7 mg/L | all year | SW2 |
| Nitrite + Nitrate total [as N] | daily maximum | ≤ .68 mg/L (alert, not enforceable) | all year | SW2 |
| Phosphorus, total [as P] | daily maximum | ≤ 2 mg/L (alert, not enforceable) | all year | SW2 |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year | SW2 |
| Lead, total [as Pb] | daily maximum | ≤ .075 mg/L (alert, not enforceable) | all year | SW2 |
| Zinc, total [as Zn] | daily maximum | ≤ .126 mg/L (alert, not enforceable) | all year | SW2 |
| Oil and grease | daily maximum | ≤ 15 mg/L (alert, not enforceable) | all year | SW2 |
| Intermittent discharge-assessment | value | report only (N=0;Y=1) (alert, not enforceable) | all year | SW2 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | SW2 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | SW2 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 30 mg/L (alert, not enforceable) | all year | SW3 |
| pH | daily minimum | report only (SU) | all year | SW3 |
| pH | maximum | report only (SU) | all year | SW3 |
| Solids, total suspended | daily maximum | ≤ 100 mg/L (alert, not enforceable) | all year | SW3 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 1.7 mg/L (alert, not enforceable) | all year | SW3 |
| Nitrite + Nitrate total [as N] | daily maximum | ≤ .68 mg/L (alert, not enforceable) | all year | SW3 |
| Phosphorus, total [as P] | daily maximum | ≤ 2 mg/L (alert, not enforceable) | all year | SW3 |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year | SW3 |
| Lead, total [as Pb] | daily maximum | ≤ .075 mg/L (alert, not enforceable) | all year | SW3 |
| Zinc, total [as Zn] | daily maximum | ≤ .126 mg/L (alert, not enforceable) | all year | SW3 |
| Oil and grease | daily maximum | ≤ 15 mg/L (alert, not enforceable) | all year | SW3 |
| Intermittent discharge-assessment | value | report only (N=0;Y=1) (alert, not enforceable) | all year | SW3 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | SW3 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | SW3 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 30 mg/L (alert, not enforceable) | all year | SW4 |
| pH | daily minimum | report only (SU) | all year | SW4 |
| pH | maximum | report only (SU) | all year | SW4 |
| Solids, total suspended | daily maximum | ≤ 100 mg/L (alert, not enforceable) | all year | SW4 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 1.7 mg/L (alert, not enforceable) | all year | SW4 |
| Nitrite + Nitrate total [as N] | daily maximum | ≤ .68 mg/L (alert, not enforceable) | all year | SW4 |
| Phosphorus, total [as P] | daily maximum | ≤ 2 mg/L (alert, not enforceable) | all year | SW4 |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year | SW4 |
| Lead, total [as Pb] | daily maximum | ≤ .075 mg/L (alert, not enforceable) | all year | SW4 |
| Zinc, total [as Zn] | daily maximum | ≤ .126 mg/L (alert, not enforceable) | all year | SW4 |
| Oil and grease | daily maximum | ≤ 15 mg/L (alert, not enforceable) | all year | SW4 |
| Intermittent discharge-assessment | value | report only (N=0;Y=1) (alert, not enforceable) | all year | SW4 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | SW4 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | SW4 |
Cited limits by parameter: Tennessee's rules and the federal ones.
Same industry: the 30 Chemicals and Allied Products permits in Tennessee.
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