THREE RIVERS SWMA, THREE RIVERS REGIONAL LANDFILL
NPDES ID: MSP090943
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: 6 effluent violations.
Violations
April 30, 2026
Oil & Grease
72% over limit
Discharged 18.29619985 kg/d against a permitted limit of 10.62359991 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Oil & Grease
87% over limit
Discharged 14.89119987 kg/d against a permitted limit of 7.94499993 kg/d (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2026
Oil & Grease
260% over limit
Discharged 38.27219968 kg/d against a permitted limit of 10.62359991 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Oil & Grease
267% over limit
Discharged 29.19219975 kg/d against a permitted limit of 7.94499993 kg/d (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2025
Arsenic, total recoverable
0% over limit
Discharged 0.0923 mg/L against a permitted limit of 0.38 mg/L (DAILY MX)
DMR, Limited - Overdue
Arsenic, total recoverable
0% over limit
Discharged 0.0829 mg/L against a permitted limit of 0.15 mg/L (SEMI AVG)
DMR, Limited - Overdue
June 30, 2025
Arsenic, total recoverable
79% over limit
Discharged 0.26859 mg/L against a permitted limit of 0.15 mg/L (SEMI AVG)
DMR, Limited - Numeric Violation
Arsenic, total recoverable
166% over limit
Discharged 1.01 mg/L against a permitted limit of 0.38 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Oil & Grease
193% over limit
Discharged 31.14439974 kg/d against a permitted limit of 10.62359991 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Oil & Grease
120% over limit
Discharged 17.47899985 kg/d against a permitted limit of 7.94499993 kg/d (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2025
Oil & Grease
123% over limit
Discharged 23.6987998 kg/d against a permitted limit of 10.62359991 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Oil & Grease
70% over limit
Discharged 13.52919989 kg/d against a permitted limit of 7.94499993 kg/d (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2025
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.02806 MGD against a permitted limit of 0.028 MGD (DAILY MX)
DMR, Limited - Numeric Violation
February 28, 2025
Oil & Grease
31% over limit
Discharged 13.93779988 kg/d against a permitted limit of 10.62359991 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Oil & Grease
14% over limit
Discharged 9.07999992 kg/d against a permitted limit of 7.94499993 kg/d (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
August 1, 2026 (4 days ago)