WINTERGREEN MOUNTAIN WWTP
NPDES ID: VA0031011
S — SNC: Compliance schedule violation
The facility missed a deadline in its compliance schedule by more than 90 days.
This quarter: 1 effluent violation.
Violations
May 31, 2026
Nitrogen, ammonia total [as N]
4% over limit
Discharged 2.7 mg/L against a permitted limit of 2.6 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
March 31, 2026
Nitrogen, ammonia total [as N]
650% over limit
Discharged 19.5 mg/L against a permitted limit of 2.6 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
19% over limit
Discharged 2.27 mg/L against a permitted limit of 1.9 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2026
Hardness, total [as CaCO3]
31% over limit
Discharged 82.7 mg/L against a permitted limit of 120 mg/L (INST MIN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1447% over limit
Discharged 29.4 mg/L against a permitted limit of 1.9 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1350% over limit
Discharged 37.7 mg/L against a permitted limit of 2.6 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
January 31, 2026
Nitrogen, ammonia total [as N]
1405% over limit
Discharged 28.6 mg/L against a permitted limit of 1.9 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Hardness, total [as CaCO3]
7% over limit
Discharged 112 mg/L against a permitted limit of 120 mg/L (INST MIN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1381% over limit
Discharged 38.5 mg/L against a permitted limit of 2.6 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
December 31, 2025
Solids, total suspended
330% over limit
Discharged 43 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
65% over limit
Discharged 3.13 mg/L against a permitted limit of 1.9 mg/L (MO AVG)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 5.79 SU against a permitted limit of 6 SU (INST MIN)
DMR, Limited - Numeric Violation
Solids, total suspended
187% over limit
Discharged 43 mg/L against a permitted limit of 15 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Solids, total suspended
51% over limit
Discharged 16.6 kg/d against a permitted limit of 11 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Hardness, total [as CaCO3]
3% over limit
Discharged 116 mg/L against a permitted limit of 120 mg/L (INST MIN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
132% over limit
Discharged 6.04 mg/L against a permitted limit of 2.6 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
September 30, 2025
Nitrogen, ammonia total [as N]
113% over limit
Discharged 1.79 mg/L against a permitted limit of 0.84 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
493% over limit
Discharged 6.52 mg/L against a permitted limit of 1.1 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
July 31, 2025
Nitrogen, ammonia total [as N]
20% over limit
Discharged 1.01 mg/L against a permitted limit of 0.84 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
125% over limit
Discharged 2.47 mg/L against a permitted limit of 1.1 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
June 30, 2025
Nitrogen, ammonia total [as N]
156% over limit
Discharged 2.15 mg/L against a permitted limit of 0.84 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
736% over limit
Discharged 9.2 mg/L against a permitted limit of 1.1 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
May 31, 2025
Nitrogen, ammonia total [as N]
15% over limit
Discharged 3 mg/L against a permitted limit of 2.6 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Hardness, total [as CaCO3]
13% over limit
Discharged 104 mg/L against a permitted limit of 120 mg/L (INST MIN)
DMR, Limited - Numeric Violation
March 31, 2025
Nitrogen, ammonia total [as N]
15% over limit
Discharged 3 mg/L against a permitted limit of 2.6 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
February 28, 2025
Nitrogen, ammonia total [as N]
32% over limit
Discharged 2.51 mg/L against a permitted limit of 1.9 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
76% over limit
Discharged 4.58 mg/L against a permitted limit of 2.6 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
January 31, 2025
Nitrogen, ammonia total [as N]
10% over limit
Discharged 2.87 mg/L against a permitted limit of 2.6 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
54% over limit
Discharged 27.73 mg/L against a permitted limit of 18 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Hardness, total [as CaCO3]
1% over limit
Discharged 119 mg/L against a permitted limit of 120 mg/L (INST MIN)
DMR, Limited - Numeric Violation
December 31, 2024
Solids, suspended percent removal
80% over limit
Discharged 73 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
31% over limit
Discharged 3.4 mg/L against a permitted limit of 2.6 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Hardness, total [as CaCO3]
2% over limit
Discharged 118 mg/L against a permitted limit of 120 mg/L (INST MIN)
DMR, Limited - Numeric Violation
October 31, 2024
BOD, carbonaceous [5 day, 20 C]
26% over limit
Discharged 11.3 mg/L against a permitted limit of 9 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Hardness, total [as CaCO3]
43% over limit
Discharged 69 mg/L against a permitted limit of 120 mg/L (INST MIN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
43% over limit
Discharged 2.58 mg/L against a permitted limit of 1.8 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
136% over limit
Discharged 5.67 mg/L against a permitted limit of 2.4 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
E. coli
Limit violation
Discharged 778 MPN/100mL against a permitted limit of 126 MPN/100mL (GEO MEAN)
DMR, Limited - Numeric Violation
September 30, 2024
Nitrogen, ammonia total [as N]
71% over limit
Discharged 4.1 mg/L against a permitted limit of 2.4 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Solids, total suspended
8% over limit
Discharged 10.8 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Hardness, total [as CaCO3]
29% over limit
Discharged 85 mg/L against a permitted limit of 120 mg/L (INST MIN)
DMR, Limited - Numeric Violation
E. coli
Limit violation
Discharged 1137 MPN/100mL against a permitted limit of 126 MPN/100mL (GEO MEAN)
DMR, Limited - Numeric Violation
August 31, 2024
E. coli
Limit violation
Discharged 455 MPN/100mL against a permitted limit of 126 MPN/100mL (GEO MEAN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
78% over limit
Discharged 4.27 mg/L against a permitted limit of 2.4 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
16% over limit
Discharged 11.6 kg/d against a permitted limit of 10 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
July 31, 2024
Nitrogen, ammonia total [as N]
953% over limit
Discharged 25.27 mg/L against a permitted limit of 2.4 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Hardness, total [as CaCO3]
8% over limit
Discharged 110 mg/L against a permitted limit of 120 mg/L (INST MIN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
596% over limit
Discharged 12.53 mg/L against a permitted limit of 1.8 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
116% over limit
Discharged 19.43 mg/L against a permitted limit of 9 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
71% over limit
Discharged 10.24 mg/L against a permitted limit of 6 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli
Limit violation
Discharged 1318 MPN/100mL against a permitted limit of 126 MPN/100mL (GEO MEAN)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)