SINTON MILL FACILITY
NPDES ID: TX0139629
X — SNC: Effluent violation (non-monthly average limit)
The facility discharged more of a pollutant than its permit allows, measured over a period other than a monthly average.
This quarter: 2 effluent violations.
Violations
April 30, 2026
Solids, total suspended
14% over limit
Discharged 9.07091992 kg/d against a permitted limit of 7.95407993 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
Solids, total suspended
75% over limit
Discharged 17.46991985 kg/d against a permitted limit of 9.97437992 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
December 31, 2025
Solids, total suspended
51% over limit
Discharged 15.06825987 kg/d against a permitted limit of 9.97437992 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
3% over limit
Discharged 3.1 mg/L against a permitted limit of 3 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
November 30, 2025
Solids, total suspended
108% over limit
Discharged 20.70239983 kg/d against a permitted limit of 9.97437992 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
21% over limit
Discharged 9.63841992 kg/d against a permitted limit of 7.95407993 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
October 31, 2025
Solids, total suspended
45% over limit
Discharged 14.43265988 kg/d against a permitted limit of 9.97437992 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
September 30, 2025
Solids, total suspended
48% over limit
Discharged 14.72775988 kg/d against a permitted limit of 9.97437992 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
30% over limit
Discharged 10.31941991 kg/d against a permitted limit of 7.95407993 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
3% over limit
Discharged 3.1 mg/L against a permitted limit of 3 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
August 31, 2025
Nitrogen, ammonia total [as N]
53% over limit
Discharged 4.6 mg/L against a permitted limit of 3 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
July 31, 2025
Solids, total suspended
62% over limit
Discharged 162 mg/L against a permitted limit of 100 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
May 31, 2025
Solids, total suspended
173% over limit
Discharged 21.71027982 kg/d against a permitted limit of 7.95407993 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
Solids, total suspended
298% over limit
Discharged 39.74769967 kg/d against a permitted limit of 9.97437992 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
April 30, 2025
Solids, total suspended
193% over limit
Discharged 29.21035975 kg/d against a permitted limit of 9.97437992 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
23% over limit
Discharged 9.78369992 kg/d against a permitted limit of 7.95407993 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
March 31, 2025
Solids, total suspended
193% over limit
Discharged 23.3310598 kg/d against a permitted limit of 7.95407993 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
Solids, total suspended
266% over limit
Discharged 36.47435969 kg/d against a permitted limit of 9.97437992 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
27% over limit
Discharged 2.2 mg/L against a permitted limit of 3 mg/L (MO MIN)
DMR, Limited - Numeric Violation
Iron, total [as Fe]
121% over limit
Discharged 0.93523999 kg/d against a permitted limit of 0.422674 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
Iron, total [as Fe]
197% over limit
Discharged 2.56509998 kg/d against a permitted limit of 0.86396199 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Oil & Grease
20% over limit
Discharged 7.99039993 kg/d against a permitted limit of 6.67833994 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
February 28, 2025
Solids, total suspended
208% over limit
Discharged 30.70855974 kg/d against a permitted limit of 9.97437992 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
86% over limit
Discharged 14.77315988 kg/d against a permitted limit of 7.95407993 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
January 31, 2025
pH
0% over limit
Discharged 9.1 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Numeric Violation
Solids, total suspended
50% over limit
Discharged 14.94113987 kg/d against a permitted limit of 9.97437992 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
11% over limit
Discharged 8.81667993 kg/d against a permitted limit of 7.95407993 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
December 31, 2024
pH
0% over limit
Discharged 9.4 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Numeric Violation
Iron, total [as Fe]
43% over limit
Discharged 1.23760399 kg/d against a permitted limit of 0.86396199 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Zinc, total [as Zn]
213% over limit
Discharged 2.25002398 kg/d against a permitted limit of 0.71868199 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
375% over limit
Discharged 37.77279968 kg/d against a permitted limit of 7.95407993 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
Solids, total suspended
564% over limit
Discharged 66.19773944 kg/d against a permitted limit of 9.97437992 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Oil & Grease
18% over limit
Discharged 7.87235993 kg/d against a permitted limit of 6.67833994 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Iron, total [as Fe]
84% over limit
Discharged 0.77679399 kg/d against a permitted limit of 0.422674 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
Zinc, total [as Zn]
171% over limit
Discharged 0.75908799 kg/d against a permitted limit of 0.280118 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
November 30, 2024
Solids, total suspended
180% over limit
Discharged 22.24599981 kg/d against a permitted limit of 7.95407993 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
Solids, total suspended
259% over limit
Discharged 35.8115197 kg/d against a permitted limit of 9.97437992 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Iron, total [as Fe]
126% over limit
Discharged 1.95129198 kg/d against a permitted limit of 0.86396199 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Iron, total [as Fe]
57% over limit
Discharged 0.66238599 kg/d against a permitted limit of 0.422674 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
October 31, 2024
Zinc, total [as Zn]
248% over limit
Discharged 2.49926998 kg/d against a permitted limit of 0.71868199 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
390% over limit
Discharged 48.91395959 kg/d against a permitted limit of 9.97437992 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Zinc, total [as Zn]
94% over limit
Discharged 0.54253 kg/d against a permitted limit of 0.280118 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
Solids, total suspended
182% over limit
Discharged 22.42759981 kg/d against a permitted limit of 7.95407993 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
September 30, 2024
Solids, total suspended
1676% over limit
Discharged 177.17803851 kg/d against a permitted limit of 9.97437992 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
523% over limit
Discharged 49.53139958 kg/d against a permitted limit of 7.95407993 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
Iron, total [as Fe]
267% over limit
Discharged 3.17300597 kg/d against a permitted limit of 0.86396199 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Iron, total [as Fe]
123% over limit
Discharged 0.94250399 kg/d against a permitted limit of 0.422674 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
August 31, 2024
Oil & Grease
21% over limit
Discharged 339.36953715 kg/d against a permitted limit of 280.11799765 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 4.4 SU against a permitted limit of 7.5 SU (MINIMUM)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 10.6 SU against a permitted limit of 10 SU (MAXIMUM)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 9.2 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Numeric Violation
Oil & Grease
88% over limit
Discharged 12.53947989 kg/d against a permitted limit of 6.67833994 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
pH range excursions, monthly total accum
77% over limit
Discharged 0.54687199 d against a permitted limit of 0.30952399 d (MO TOTAL)
DMR, Limited - Numeric Violation
Solids, total suspended
717% over limit
Discharged 81.52931931 kg/d against a permitted limit of 9.97437992 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
174% over limit
Discharged 21.81469982 kg/d against a permitted limit of 7.95407993 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
July 31, 2024
pH
0% over limit
Discharged 0 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Overdue
Solids, total suspended
32% over limit
Discharged 13.17961989 kg/d against a permitted limit of 9.97437992 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 4.6 SU against a permitted limit of 7.5 SU (MINIMUM)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 0 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Overdue
pH
0% over limit
Discharged 11.1 SU against a permitted limit of 10 SU (MAXIMUM)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 0 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Solids, total suspended
7% over limit
Discharged 8.53519993 kg/d against a permitted limit of 7.95407993 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
pH range excursions, monthly total accum
152% over limit
Discharged 0.78074999 d against a permitted limit of 0.30952399 d (MO TOTAL)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)