MONTROSS WESTMORELAND WWTP
NPDES ID: VA0072729
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
Copper, total [as Cu]
7% over limit
Discharged 0.0046 mg/L against a permitted limit of 0.0043 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
7% over limit
Discharged 0.0046 mg/L against a permitted limit of 0.0043 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
March 31, 2026
Nitrogen, Kjeldahl, total [as N]
16% over limit
Discharged 5.2 mg/L against a permitted limit of 4.5 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
183% over limit
Discharged 42.5 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
18% over limit
Discharged 11.79 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
46% over limit
Discharged 10.80924051 kg/d against a permitted limit of 7.40000035 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
February 28, 2026
Nitrogen, Kjeldahl, total [as N]
39% over limit
Discharged 4.18 mg/L against a permitted limit of 3 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
78% over limit
Discharged 8.71800041 kg/d against a permitted limit of 4.90000023 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, Kjeldahl, total [as N]
22% over limit
Discharged 5.5 mg/L against a permitted limit of 4.5 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
224% over limit
Discharged 32.43 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
272% over limit
Discharged 55.73 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
90% over limit
Discharged 14.07529067 kg/d against a permitted limit of 7.40000035 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
January 31, 2026
Copper, total [as Cu]
93% over limit
Discharged 0.0083 mg/L against a permitted limit of 0.0043 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, Kjeldahl, total [as N]
20% over limit
Discharged 3.61 mg/L against a permitted limit of 3 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
10% over limit
Discharged 5.41296026 kg/d against a permitted limit of 4.90000023 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
10% over limit
Discharged 8.11431039 kg/d against a permitted limit of 7.40000035 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
144% over limit
Discharged 24.39 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
93% over limit
Discharged 0.0083 mg/L against a permitted limit of 0.0043 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Zinc, total [as Zn]
7% over limit
Discharged 0.045 mg/L against a permitted limit of 0.042 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Zinc, total [as Zn]
7% over limit
Discharged 0.045 mg/L against a permitted limit of 0.042 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
147% over limit
Discharged 37.07 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
December 31, 2025
Copper, total [as Cu]
12% over limit
Discharged 0.0048 mg/L against a permitted limit of 0.0043 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
12% over limit
Discharged 0.0048 mg/L against a permitted limit of 0.0043 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
21% over limit
Discharged 18.1 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
November 30, 2025
Solids, total suspended
2% over limit
Discharged 15.33 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
7% over limit
Discharged 0.0046 mg/L against a permitted limit of 0.0043 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
7% over limit
Discharged 0.0046 mg/L against a permitted limit of 0.0043 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
23% over limit
Discharged 12.26 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
October 31, 2025
Nitrogen, Kjeldahl, total [as N]
9% over limit
Discharged 3.28 mg/L against a permitted limit of 3 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
2% over limit
Discharged 15.23 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
18% over limit
Discharged 11.8 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, Kjeldahl, total [as N]
1% over limit
Discharged 4.53 mg/L against a permitted limit of 4.5 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
156% over limit
Discharged 0.011 mg/L against a permitted limit of 0.0043 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
110% over limit
Discharged 4.2 mg/L against a permitted limit of 2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
156% over limit
Discharged 0.011 mg/L against a permitted limit of 0.0043 mg/L (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2025
Nitrogen, Kjeldahl, total [as N]
180% over limit
Discharged 12.6 mg/L against a permitted limit of 4.5 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
88% over limit
Discharged 0.0081 mg/L against a permitted limit of 0.0043 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, Kjeldahl, total [as N]
61% over limit
Discharged 4.82 mg/L against a permitted limit of 3 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
463% over limit
Discharged 11.25 mg/L against a permitted limit of 2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
34% over limit
Discharged 13.35 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
34% over limit
Discharged 13.35 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
88% over limit
Discharged 0.0081 mg/L against a permitted limit of 0.0043 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
22% over limit
Discharged 18.3 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, Kjeldahl, total [as N]
61% over limit
Discharged 3.54315017 kg/d against a permitted limit of 2.2000001 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
22% over limit
Discharged 18.3 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
June 30, 2025
Solids, total suspended
11% over limit
Discharged 8.22672039 kg/d against a permitted limit of 7.40000035 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, Kjeldahl, total [as N]
31% over limit
Discharged 2.87565014 kg/d against a permitted limit of 2.2000001 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
April 30, 2025
Copper, total [as Cu]
474% over limit
Discharged 0.0247 mg/L against a permitted limit of 0.0043 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
106% over limit
Discharged 20.56 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Zinc, total [as Zn]
110% over limit
Discharged 0.088 mg/L against a permitted limit of 0.042 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
74% over limit
Discharged 26.13 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
474% over limit
Discharged 0.0247 mg/L against a permitted limit of 0.0043 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
15% over limit
Discharged 5.62900027 kg/d against a permitted limit of 4.90000023 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Zinc, total [as Zn]
110% over limit
Discharged 0.088 mg/L against a permitted limit of 0.042 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, Kjeldahl, total [as N]
8% over limit
Discharged 3.23 mg/L against a permitted limit of 3 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2025
Solids, total suspended
91% over limit
Discharged 19.13 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
183% over limit
Discharged 42.5 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, Kjeldahl, total [as N]
16% over limit
Discharged 5.2 mg/L against a permitted limit of 4.5 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
46% over limit
Discharged 10.80924051 kg/d against a permitted limit of 7.40000035 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
February 28, 2025
Copper, total [as Cu]
2% over limit
Discharged 0.0044 mg/L against a permitted limit of 0.0043 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
2% over limit
Discharged 0.0044 mg/L against a permitted limit of 0.0043 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
October 31, 2024
Copper, total [as Cu]
16% over limit
Discharged 0.005 mg/L against a permitted limit of 0.0043 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
16% over limit
Discharged 0.005 mg/L against a permitted limit of 0.0043 mg/L (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2024
Copper, total [as Cu]
12% over limit
Discharged 0.0048 mg/L against a permitted limit of 0.0043 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
12% over limit
Discharged 0.0048 mg/L against a permitted limit of 0.0043 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
August 31, 2024
Copper, total [as Cu]
70% over limit
Discharged 0.0073 mg/L against a permitted limit of 0.0043 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
70% over limit
Discharged 0.0073 mg/L against a permitted limit of 0.0043 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)