Passage Data · Check a report · Use it from your AI
Chemical Preparations, Memphis, Tennessee. NPDES permit TN0040606, in force until Mar 31, 2028. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Phosphorus, total [as P] | rolling average | ≤ 490 lb/yr | all year | SUR1 |
| pH | value | report only (SU) | all year | SW1 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | SW1 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | SW1 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | SW1 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | all year | SW1 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | SW1 |
| Magnesium, total [as Mg] | daily maximum | report only (mg/L) | all year | SW1 |
| Iron, total recoverable | daily maximum | report only (mg/L) | all year | SW1 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | all year | SW1 |
| Aluminum, total [as Al] | daily maximum | report only (mg/L) | all year | SW1 |
| Lead, total recoverable | daily maximum | report only (mg/L) | all year | SW1 |
| Copper, total recoverable | daily maximum | report only (mg/L) | all year | SW1 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | SW1 |
| LC50 Static 48Hr Acute Ceriodaphnia dubia | minimum | report only (%) | all year | SW1 |
| LC50 Static 48Hr Acute Pimephales promelas | minimum | report only (%) | all year | SW1 |
| pH | value | report only (SU) | all year | SW2 |
| pH | value | report only (SU) | all year | SW2 |
| pH | value | report only (SU) | all year | SW2 |
| pH | value | report only (SU) | all year | SW2 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | SW2 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | SW2 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | SW2 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | SW2 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | SW2 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | SW2 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | SW2 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | SW2 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | SW2 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | SW2 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | SW2 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | SW2 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | all year | SW2 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | all year | SW2 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | all year | SW2 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | all year | SW2 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | SW2 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | SW2 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | SW2 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | SW2 |
| Magnesium, total [as Mg] | daily maximum | report only (mg/L) | all year | SW2 |
| Magnesium, total [as Mg] | daily maximum | report only (mg/L) | all year | SW2 |
| Magnesium, total [as Mg] | daily maximum | report only (mg/L) | all year | SW2 |
| Magnesium, total [as Mg] | daily maximum | report only (mg/L) | all year | SW2 |
| Iron, total recoverable | daily maximum | report only (mg/L) | all year | SW2 |
| Iron, total recoverable | daily maximum | report only (mg/L) | all year | SW2 |
| Iron, total recoverable | daily maximum | report only (mg/L) | all year | SW2 |
| Iron, total recoverable | daily maximum | report only (mg/L) | all year | SW2 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year | SW2 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year | SW2 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year | SW2 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year | SW2 |
| Aluminum, total [as Al] | daily maximum | report only (mg/L) | all year | SW2 |
| Aluminum, total [as Al] | daily maximum | report only (mg/L) | all year | SW2 |
| Aluminum, total [as Al] | daily maximum | report only (mg/L) | all year | SW2 |
| Aluminum, total [as Al] | daily maximum | report only (mg/L) | all year | SW2 |
| Lead, total recoverable | daily maximum | report only (mg/L) | all year | SW2 |
| Lead, total recoverable | daily maximum | report only (mg/L) | all year | SW2 |
| Lead, total recoverable | daily maximum | report only (mg/L) | all year | SW2 |
| Lead, total recoverable | daily maximum | report only (mg/L) | all year | SW2 |
| Copper, total recoverable | daily maximum | report only (mg/L) | all year | SW2 |
| Copper, total recoverable | daily maximum | report only (mg/L) | all year | SW2 |
| Copper, total recoverable | daily maximum | report only (mg/L) | all year | SW2 |
| Copper, total recoverable | daily maximum | report only (mg/L) | all year | SW2 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | SW2 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | SW2 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | SW2 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | SW2 |
| LC50 Static 48Hr Acute Ceriodaphnia dubia | minimum | report only (%) | all year | SW2 |
| LC50 Static 48Hr Acute Ceriodaphnia dubia | minimum | report only (%) | all year | SW2 |
| LC50 Static 48Hr Acute Ceriodaphnia dubia | minimum | report only (%) | all year | SW2 |
| LC50 Static 48Hr Acute Ceriodaphnia dubia | minimum | report only (%) | all year | SW2 |
| LC50 Static 48Hr Acute Pimephales promelas | minimum | report only (%) | all year | SW2 |
| LC50 Static 48Hr Acute Pimephales promelas | minimum | report only (%) | all year | SW2 |
| LC50 Static 48Hr Acute Pimephales promelas | minimum | report only (%) | all year | SW2 |
| LC50 Static 48Hr Acute Pimephales promelas | minimum | report only (%) | all year | SW2 |
| pH | value | report only (SU) | all year | SW3 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | SW3 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | SW3 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | SW3 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | all year | SW3 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | SW3 |
| Magnesium, total [as Mg] | daily maximum | report only (mg/L) | all year | SW3 |
| Iron, total recoverable | daily maximum | report only (mg/L) | all year | SW3 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year | SW3 |
| Aluminum, total [as Al] | daily maximum | report only (mg/L) | all year | SW3 |
| Lead, total recoverable | daily maximum | report only (mg/L) | all year | SW3 |
| Copper, total recoverable | daily maximum | report only (mg/L) | all year | SW3 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | SW3 |
| LC50 Static 48Hr Acute Ceriodaphnia dubia | minimum | report only (%) | all year | SW3 |
| LC50 Static 48Hr Acute Pimephales promelas | minimum | report only (%) | all year | SW3 |
| pH | value | report only (SU) | all year | SW4 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | SW4 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | SW4 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | SW4 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | all year | SW4 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | SW4 |
| Magnesium, total [as Mg] | daily maximum | report only (mg/L) | all year | SW4 |
| Iron, total recoverable | daily maximum | report only (mg/L) | all year | SW4 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year | SW4 |
| Aluminum, total [as Al] | daily maximum | report only (mg/L) | all year | SW4 |
| Lead, total recoverable | daily maximum | report only (mg/L) | all year | SW4 |
| Copper, total recoverable | daily maximum | report only (mg/L) | all year | SW4 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | SW4 |
| Bromide [as Br] | daily maximum | report only (mg/L) | all year | SW4 |
| LC50 Static 48Hr Acute Ceriodaphnia dubia | minimum | report only (%) | all year | SW4 |
| LC50 Static 48Hr Acute Pimephales promelas | minimum | report only (%) | 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.
· 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/TN0040606 · MCP: https://passage-data.com/mcp