HOGBACK PROPERTY
NPDES ID: COX046043
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: 2 effluent violations.
Violations
May 31, 2026
Sulfate, total [as SO4]
17% over limit
Discharged 292 mg/L against a permitted limit of 250 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
April 30, 2026
Sulfate, total [as SO4]
5% over limit
Discharged 262 mg/L against a permitted limit of 250 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
March 31, 2026
Sulfate, total [as SO4]
7% over limit
Discharged 268 mg/L against a permitted limit of 250 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
February 28, 2026
Sulfate, total [as SO4]
3% over limit
Discharged 257 mg/L against a permitted limit of 250 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
November 30, 2025
Sulfate, total [as SO4]
3% over limit
Discharged 258 mg/L against a permitted limit of 250 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
October 31, 2025
Sulfate, total [as SO4]
8% over limit
Discharged 269 mg/L against a permitted limit of 250 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
July 31, 2025
Sulfate, total [as SO4]
18% over limit
Discharged 295 mg/L against a permitted limit of 250 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
May 31, 2025
Sulfate, total [as SO4]
2% over limit
Discharged 254 mg/L against a permitted limit of 250 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
April 30, 2025
Sulfate, total [as SO4]
13% over limit
Discharged 283 mg/L against a permitted limit of 250 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
March 31, 2025
Sulfate, total [as SO4]
4% over limit
Discharged 260 mg/L against a permitted limit of 250 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
February 28, 2025
Sulfate, total [as SO4]
4% over limit
Discharged 259 mg/L against a permitted limit of 250 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
January 31, 2025
Sulfate, total [as SO4]
3% over limit
Discharged 258 mg/L against a permitted limit of 250 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
December 31, 2024
Sulfate, total [as SO4]
4% over limit
Discharged 260 mg/L against a permitted limit of 250 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
November 30, 2024
Sulfate, total [as SO4]
1% over limit
Discharged 252 mg/L against a permitted limit of 250 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)