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Chemicals & Allied Products, Natchez, Mississippi. NPDES permit MS0047422, in force until Jul 31, 2031. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | semi-annual average | report only (mg/L) | all year | 001 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 15 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | semi-annual average | report only (lb/d) | all year | 001 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (lb/d) | all year | 001 |
| pH | minimum | ≥ 6 SU | all year | 001 |
| pH | maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | semi-annual average | report only (mg/L) | all year | 001 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 001 |
| Solids, total suspended | semi-annual average | report only (lb/d) | all year | 001 |
| Solids, total suspended | daily maximum | report only (lb/d) | all year | 001 |
| Oil & Grease | semi-annual average | report only (mg/L) | all year | 001 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 001 |
| Oil & Grease | semi-annual average | report only (lb/d) | all year | 001 |
| Oil & Grease | daily maximum | report only (lb/d) | all year | 001 |
| Flow, in conduit or thru treatment plant | semi-annual 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 | semi-annual average | report only (mg/L) | all year | 001 |
| Chlorine, total residual | daily maximum | ≤ .019 mg/L | all year | 001 |
| pH | minimum | ≥ 6 SU | all year | 101 |
| pH | maximum | ≤ 9 SU | all year | 101 |
| Solids, total suspended | semi-annual maximum | ≤ 90 mg/L | all year | 101 |
| Lead, total recoverable | semi-annual maximum | ≤ .03 mg/L | all year | 101 |
| Oil and grease | semi-annual maximum | ≤ 15 mg/L | all year | 101 |
| Benzene, ethylbenzene, toluene, xylene combination | semi-annual maximum | ≤ 1.12 mg/L | all year | 101 |
| Benzene | semi-annual maximum | ≤ .075 mg/L | all year | 101 |
| Naphthalene | semi-annual maximum | report only (mg/L) | all year | 101 |
| Polychlorinated biphenyls [PCBs] | semi-annual maximum | ≤ .00002 mg/L | all year | 101 |
| Flow, in conduit or thru treatment plant | semi-annual average | report only (MGD) | all year | 101 |
| Flow, in conduit or thru treatment plant | semi-annual maximum | report only (MGD) | all year | 101 |
| Chlorine, total residual | semi-annual maximum | report only (mg/L) | all year | 101 |
| pH | minimum | ≥ 6 SU | all year | 102 |
| pH | maximum | ≤ 9 SU | all year | 102 |
| Solids, total suspended | semi-annual maximum | ≤ 90 mg/L | all year | 102 |
| Oil and grease | semi-annual maximum | ≤ 15 mg/L | all year | 102 |
| Flow, in conduit or thru treatment plant | semi-annual average | report only (MGD) | all year | 102 |
| Flow, in conduit or thru treatment plant | semi-annual maximum | report only (MGD) | all year | 102 |
| Chlorine, total residual | semi-annual maximum | report only (mg/L) | all year | 102 |
Cited limits by parameter: Mississippi's rules and the federal ones.
Same industry: the 6 Wholesale Trade — Nondurable Goods permits in Mississippi.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/MS0047422 · MCP: https://passage-data.com/mcp