MARTIN ASPHALT SOUTH HOUSTON PLANT
NPDES ID: TX0005479
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: 1 effluent violation.
Violations
May 31, 2026
Solids, total suspended
14% over limit
Discharged 10.62359991 kg/d against a permitted limit of 9.35239992 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
February 28, 2026
Copper, total [as Cu]
44% over limit
Discharged 0.023 mg/L against a permitted limit of 0.016 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
January 31, 2026
Copper, total [as Cu]
31% over limit
Discharged 0.021 mg/L against a permitted limit of 0.016 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
December 31, 2025
Copper, total [as Cu]
19% over limit
Discharged 0.019 mg/L against a permitted limit of 0.016 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
October 31, 2025
Copper, total [as Cu]
25% over limit
Discharged 0.02 mg/L against a permitted limit of 0.016 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
December 31, 2024
Copper, total [as Cu]
6% over limit
Discharged 0.017 mg/L against a permitted limit of 0.016 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)