TACOMA ASPHALT PLANT
NPDES ID: WAG501504
D — SNC: Discharge monitoring report not received
The facility didn't submit its required discharge monitoring report.
Violations
March 31, 2026
Turbidity
0% over limit
Discharged 52.66 NTU against a permitted limit of 50 NTU (M1 Average)
DMR, Limited - Numeric Violation
Oil and grease visual
Limit violation
Discharged 1 pass=0;fail=1 against a permitted limit of 0 pass=0;fail=1 (DAILY MX)
DMR, Limited - Numeric Violation
December 31, 2025
pH
0% over limit
Discharged 0 SU against a permitted limit of 8.5 SU (DAILY MX)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 6.5 SU (DAILY MN)
DMR, Limited - Overdue
September 30, 2025
Oil and grease visual
0% over limit
Discharged 0 pass=0;fail=1 against a permitted limit of 0 pass=0;fail=1 (DAILY MX)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 8.5 SU (DAILY MX)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 8.5 SU (DAILY MX)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 6.5 SU (DAILY MN)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 6.5 SU (DAILY MN)
DMR, Limited - Overdue
June 30, 2025
pH
0% over limit
Discharged 0 SU against a permitted limit of 8.5 SU (DAILY MX)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 6.5 SU (DAILY MN)
DMR, Limited - Overdue
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)