WEST BATON ROUGE PARISH - WESTPORT WWTF
NPDES ID: LA0068501
E — SNC: Effluent violation (monthly average limit)
The facility discharged more of a pollutant than its permit allows, based on a monthly average.
This quarter: 4 effluent violations.
Violations
May 31, 2026
BOD, 5-day, 20 deg. C
87% over limit
Discharged 28 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
100% over limit
Discharged 400 MPN/100mL against a permitted limit of 200 MPN/100mL (MOAV GEO)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
70% over limit
Discharged 17 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2026
Coliform, fecal general
100% over limit
Discharged 400 MPN/100mL against a permitted limit of 200 MPN/100mL (MOAV GEO)
DMR, Limited - Numeric Violation
March 31, 2026
BOD, 5-day, 20 deg. C
80% over limit
Discharged 27 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
100% over limit
Discharged 400 MPN/100mL against a permitted limit of 200 MPN/100mL (MOAV GEO)
DMR, Limited - Numeric Violation
Solids, total suspended
56% over limit
Discharged 23.4 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
100% over limit
Discharged 20 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
35% over limit
Discharged 31 mg/L against a permitted limit of 23 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
November 30, 2025
Coliform, fecal general
Limit violation
Discharged 2410 MPN/100mL against a permitted limit of 200 MPN/100mL (MOAV GEO)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 2410 MPN/100mL against a permitted limit of 400 MPN/100mL (WKAV GEO)
DMR, Limited - Numeric Violation
October 31, 2025
Solids, total suspended
5% over limit
Discharged 15.8 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2025
Coliform, fecal general
288% over limit
Discharged 1550 MPN/100mL against a permitted limit of 400 MPN/100mL (WKAV GEO)
DMR, Limited - Numeric Violation
September 30, 2024
Solids, total suspended
33% over limit
Discharged 20 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
52% over limit
Discharged 35 mg/L against a permitted limit of 23 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 2410 MPN/100mL against a permitted limit of 400 MPN/100mL (WKAV GEO)
DMR, Limited - Numeric Violation
August 31, 2024
Solids, total suspended
75% over limit
Discharged 26.2 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 24100 MPN/100mL against a permitted limit of 400 MPN/100mL (WKAV GEO)
DMR, Limited - Numeric Violation
Coliform, fecal general
325% over limit
Discharged 850 MPN/100mL against a permitted limit of 200 MPN/100mL (MOAV GEO)
DMR, Limited - Numeric Violation
Solids, total suspended
79% over limit
Discharged 41.2 mg/L against a permitted limit of 23 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 15, 2026 (11 hours ago)