West Carroll Parish Police Jury — NPDES permit LA0075761: limits, due date and EPA's record

Sewage treatment plant, Oak Grove, Louisiana. NPDES permit LA0075761, in force until Sep 30, 2028. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Limits in force (54)

Parameter	Statistic	Limit	Months	Outfall
Turbidity	daily maximum	report only (NTU)	all year	001
pH	instantaneous minimum	≥ 6 SU	all year	001
pH	instantaneous maximum	≤ 9 SU	all year	001
Solids, total suspended	daily maximum	≤ 100 mg/L (alert, not enforceable)	all year	001
Oil & Grease	daily maximum	≤ 15 mg/L	all year	001
Carbon, tot organic [TOC]	daily maximum	≤ 50 mg/L	all year	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
Turbidity	daily maximum	report only (NTU)	all year	002
pH	instantaneous minimum	≥ 6 SU	all year	002
pH	instantaneous maximum	≤ 9 SU	all year	002
Solids, total suspended	daily maximum	≤ 100 mg/L (alert, not enforceable)	all year	002
Oil & Grease	daily maximum	≤ 15 mg/L	all year	002
Carbon, tot organic [TOC]	daily maximum	≤ 50 mg/L	all year	002
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year	002
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	002
Turbidity	daily maximum	report only (NTU)	all year	003
BOD, 5-day, 20 deg. C	daily maximum	report only (mg/L)	all year	003
pH	instantaneous minimum	≥ 6 SU	all year	003
pH	instantaneous maximum	≤ 9 SU	all year	003
Solids, total suspended	daily maximum	≤ 100 mg/L (alert, not enforceable)	all year	003
Oil & Grease	daily maximum	≤ 15 mg/L	all year	003
Nitrogen, ammonia total [as N]	daily maximum	report only (mg/L)	all year	003
Carbon, tot organic [TOC]	daily maximum	≤ 50 mg/L	all year	003
Zinc, total [as Zn]	daily maximum	report only (mg/L)	all year	003
Phenol	daily maximum	report only (mg/L)	all year	003
p-Cresol	daily maximum	report only (mg/L)	all year	003
Benzoic acids, total	daily maximum	report only (mg/L)	all year	003
.alpha.-Terpineol	daily maximum	report only (mg/L)	all year	003
BOD, 5-day, 20 deg. C	monthly average	≤ 30 mg/L	all year	101
BOD, 5-day, 20 deg. C	daily maximum	≤ 45 mg/L	all year	101
Solids, total suspended	monthly average	≤ 27 mg/L	all year	101
Solids, total suspended	daily maximum	≤ 88 mg/L	all year	101
Nitrogen, total [as N]	monthly average	report only (mg/L)	all year	101
Nitrogen, total [as N]	daily maximum	report only (mg/L)	all year	101
Nitrogen, ammonia total [as N]	monthly average	≤ 4.9 mg/L	all year	101
Nitrogen, ammonia total [as N]	daily maximum	≤ 10 mg/L	all year	101
Phosphorus, total [as P]	monthly average	report only (mg/L)	all year	101
Phosphorus, total [as P]	daily maximum	report only (mg/L)	all year	101
Zinc, total [as Zn]	monthly average	≤ .11 mg/L	all year	101
Zinc, total [as Zn]	daily maximum	≤ .2 mg/L	all year	101
Phenol	monthly average	≤ .015 mg/L	all year	101
Phenol	daily maximum	≤ .026 mg/L	all year	101
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year	101
Flow, in conduit or thru treatment plant	weekly average	report only (MGD)	all year	101
Priority pollutants scan [yes/no]	minimum	≥ 1 N=0;Y=1	all year	101
Coliform, fecal general	monthly geometric mean	≤ 200 #/100mL	all year	101
Coliform, fecal general	daily maximum	≤ 400 #/100mL	all year	101
p-Cresol	monthly average	≤ .014 mg/L	all year	101
p-Cresol	daily maximum	≤ .025 mg/L	all year	101
Benzoic acids, total	monthly average	≤ .071 mg/L	all year	101
Benzoic acids, total	daily maximum	≤ .12 mg/L	all year	101
.alpha.-Terpineol	monthly average	≤ .016 mg/L	all year	101
.alpha.-Terpineol	daily maximum	≤ .033 mg/L	all year	101

How strict are these limits?

Your permit document is the final word. As JSON: /api/v1/permits/LA0075761 · MCP: https://passage-data.com/mcp