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Entergy Mississippi Inc, Baxter Wilson Plant

Electric Services, major discharger, Vicksburg, Mississippi. NPDES permit MS0000167, in force until Oct 31, 2028. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form A monthly (11 values), outfall 001 form Q quarterly (1 value), outfall 002 form A monthly (11 values), outfall 002 form Q quarterly (1 value), outfall 004 form A monthly (10 values)
Renewal application due
May 4, 2028 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 44 reports late

Limits in force (34)

ParameterStatisticLimitMonthsOutfall
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantmonthly maximumreport only (MGD)all year001
Chlorine, total residualmonthly averagereport only (mg/L)all year001
Chlorine, total residualmonthly maximum≤ .5 mg/Lall year001
Chlorine, free availablemonthly averagereport only (mg/L)all year001
Chlorine, free availablemonthly maximum≤ .2 mg/Lall year001
Temp. diff. between intake and dischargemonthly averagereport only (deg F)all year001
Temp. diff. between intake and dischargemonthly maximumreport only (deg F)all year001
Chlorination durationdaily maximum≤ 120 minall year001
LC50 Static Renewal 48Hr Acute Ceriodaphnia dubiaminimum≥ 1 %all year001
pHminimum≥ 6 SUall year002
pHmaximum≤ 9 SUall year002
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantmonthly maximumreport only (MGD)all year002
Chlorine, total residualmonthly averagereport only (mg/L)all year002
Chlorine, total residualmonthly maximum≤ .5 mg/Lall year002
Chlorine, free availablemonthly averagereport only (mg/L)all year002
Chlorine, free availablemonthly maximum≤ .2 mg/Lall year002
Temp. diff. between intake and dischargemonthly averagereport only (deg F)all year002
Temp. diff. between intake and dischargemonthly maximumreport only (deg F)all year002
Chlorination durationdaily maximum≤ 120 minall year002
LC50 Static Renewal 48Hr Acute Ceriodaphnia dubiaminimum≥ 1 %all year002
pHminimum≥ 6 SUall year004
pHmaximum≤ 9 SUall year004
Solids, total suspendedmonthly average≤ 30 mg/Lall year004
Solids, total suspendedmonthly maximum≤ 100 mg/Lall year004
Oil & Greasemonthly average≤ 15 mg/Lall year004
Oil & Greasemonthly maximum≤ 20 mg/Lall year004
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year004
Flow, in conduit or thru treatment plantmonthly maximumreport only (MGD)all year004
pH range excursions, > 60 minutesmonthly total≤ 0 occur/moall year004
pH range excursions, monthly total accummonthly total≤ 446 minall year004

How strict are these limits?

Cited limits by parameter: Mississippi's rules and the federal ones.

Same industry: the 20 Electric Services 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/MS0000167 · MCP: https://passage-data.com/mcp