NPDES ID: SDP000137
S — SNC: Compliance schedule violation
The facility missed a deadline in its compliance schedule by more than 90 days.
This quarter: 1 effluent violation, 1 reporting violation.
Violations
April 30, 2026
pH
0% over limit
Discharged 12.9 SU against a permitted limit of 9 SU (DAILY MX)
DMR, Limited - Numeric Violation
Flow rate
0% over limit
Discharged 0 MGD against a permitted limit of 0.047 MGD (DAILY MX)
DMR, Limited - Overdue
March 31, 2026
pH
0% over limit
Discharged 11.4 SU against a permitted limit of 9 SU (DAILY MX)
DMR, Limited - Numeric Violation
February 28, 2026
pH
0% over limit
Discharged 12.9 SU against a permitted limit of 9 SU (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
72% over limit
Discharged 429 mg/L against a permitted limit of 250 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
January 31, 2026
Oil and grease, hexane extr method
75% over limit
Discharged 175 mg/L against a permitted limit of 100 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
152% over limit
Discharged 630 mg/L against a permitted limit of 250 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 11.4 SU against a permitted limit of 9 SU (DAILY MX)
DMR, Limited - Numeric Violation
December 31, 2025
BOD, 5-day, 20 deg. C
152% over limit
Discharged 630 mg/L against a permitted limit of 250 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 11.3 SU against a permitted limit of 9 SU (DAILY MX)
DMR, Limited - Numeric Violation
November 30, 2025
Phosphorus, total [as P]
0% over limit
Discharged 3.21 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 12.37 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 263 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Temperature, water deg. fahrenheit
0% over limit
Discharged 123.7 deg F against a permitted limit of 0 deg F (DAILY MX)
DMR, Monitor Only - Overdue
Nitrogen, Kjeldahl, total [as N]
0% over limit
Discharged 50.42 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 139.11 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Flow, total
0% over limit
Discharged 333148 gal against a permitted limit of 0 gal (MO TOTAL)
DMR, Monitor Only - Overdue
Flow rate
0% over limit
Discharged 0.016657 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
Oil and grease, hexane extr method
0% over limit
Discharged 8.11 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 7.7 SU against a permitted limit of 0 SU (DAILY MN)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 11.5 SU against a permitted limit of 0 SU (DAILY MX)
DMR, Monitor Only - Overdue
Nitrogen, total [as N]
0% over limit
Discharged 50.44 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
October 31, 2025
Nitrogen, Kjeldahl, total [as N]
0% over limit
Discharged 35.1 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Phosphorus, total [as P]
0% over limit
Discharged 14.5 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 97 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Oil and grease, hexane extr method
0% over limit
Discharged 35.1 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 24.5 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Temperature, water deg. fahrenheit
0% over limit
Discharged 123.4 deg F against a permitted limit of 0 deg F (DAILY MX)
DMR, Monitor Only - Overdue
Nitrogen, total [as N]
0% over limit
Discharged 191 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Flow, total
0% over limit
Discharged 272552 gal against a permitted limit of 0 gal (MO TOTAL)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 11.5 SU against a permitted limit of 0 SU (DAILY MX)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 7.7 SU against a permitted limit of 0 SU (DAILY MN)
DMR, Monitor Only - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 770 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Flow rate
0% over limit
Discharged 0.022713 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
March 31, 2025
Nitrogen, ammonia total [as N]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
February 28, 2025
Nitrogen, ammonia total [as N]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
January 31, 2025
pH
0% over limit
Discharged 0 SU against a permitted limit of 0 SU (DAILY MX)
DMR, Monitor Only - Overdue
Flow, total
0% over limit
Discharged 0 gal against a permitted limit of 0 gal (MO TOTAL)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 0 SU (DAILY MN)
DMR, Monitor Only - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Flow rate
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
December 31, 2024
Flow rate
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 0 SU (DAILY MN)
DMR, Monitor Only - Overdue
Flow, total
0% over limit
Discharged 0 gal against a permitted limit of 0 gal (MO TOTAL)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 0 SU (DAILY MX)
DMR, Monitor Only - Overdue
October 31, 2024
Nitrogen, ammonia total [as N]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Nitrogen, Kjeldahl, total [as N]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Temperature, water deg. fahrenheit
0% over limit
Discharged 0 deg F against a permitted limit of 0 deg F (DAILY MX)
DMR, Monitor Only - Overdue
Phosphorus, total [as P]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Oil and grease, hexane extr method
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Nitrogen, total [as N]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)