LAUREL TRAVEL CENTER
NPDES ID: MT0031879
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
Nitrite + Nitrate total [as N]
61% over limit
Discharged 16.1 mg/L against a permitted limit of 10 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrite + Nitrate total [as N]
61% over limit
Discharged 16.1 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2026
Nitrite + Nitrate total [as N]
89% over limit
Discharged 18.9 mg/L against a permitted limit of 10 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrite + Nitrate total [as N]
89% over limit
Discharged 18.9 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
October 31, 2025
E. coli, MTEC-MF
8% over limit
Discharged 272 MPN/100mL against a permitted limit of 252 MPN/100mL (WKAV GEO)
DMR, Limited - Numeric Violation
E. coli, MTEC-MF
116% over limit
Discharged 272 MPN/100mL against a permitted limit of 126 MPN/100mL (MOAV GEO)
DMR, Limited - Numeric Violation
July 31, 2025
E. coli, MTEC-MF
0% over limit
Discharged 0 MPN/100mL against a permitted limit of 252 MPN/100mL (WKAV GEO)
DMR, Limited - Overdue
E. coli, MTEC-MF
0% over limit
Discharged 0 MPN/100mL against a permitted limit of 126 MPN/100mL (MOAV GEO)
DMR, Limited - Overdue
April 30, 2025
BOD, 5-day, 20 deg. C
0% over limit
Discharged 0.0184324 kg/d against a permitted limit of 2.04299998 kg/d (MO AVG)
DMR, Limited - Overdue
BOD, 5-day, percent removal
0% over limit
Discharged 99 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Overdue
pH
0% over limit
Discharged 7.27 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Overdue
pH
0% over limit
Discharged 7.69 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Flow rate
0% over limit
Discharged 0.0115 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
Flow rate
0% over limit
Discharged 0.0024 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
March 31, 2025
pH
0% over limit
Discharged 7.8 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Flow rate
0% over limit
Discharged 0.0024 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
Flow rate
0% over limit
Discharged 0.0092 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 7.6 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Overdue
February 28, 2025
BOD, 5-day, percent removal
0% over limit
Discharged 99.6 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Overdue
August 31, 2024
Nitrite + Nitrate total [as N]
40% over limit
Discharged 14 mg/L against a permitted limit of 10 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrite + Nitrate total [as N]
40% over limit
Discharged 14 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 15, 2026 (10 hours ago)