BURRILLVILLE WWTF
NPDES ID: RI0100455
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: 3 effluent violations.
Violations
June 30, 2026
Aluminum, total [as Al]
87% over limit
Discharged 0.26500001 mg/L against a permitted limit of 0.14150001 mg/L (MO AVG)
DMR, Limited - Numeric Violation
May 31, 2026
Aluminum, total [as Al]
50% over limit
Discharged 0.21230001 mg/L against a permitted limit of 0.14150001 mg/L (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2026
Aluminum, total [as Al]
28% over limit
Discharged 0.18060001 mg/L against a permitted limit of 0.14150001 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2026
Nitrogen, ammonia total [as N]
6% over limit
Discharged 21.1 mg/L against a permitted limit of 20 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2025
Copper, total [as Cu]
98% over limit
Discharged 0.021 mg/L against a permitted limit of 0.0106 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
November 30, 2025
Copper, total [as Cu]
23% over limit
Discharged 0.0098 mg/L against a permitted limit of 0.008 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
4% over limit
Discharged 0.011 mg/L against a permitted limit of 0.0106 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
October 31, 2025
Aluminum, total [as Al]
47% over limit
Discharged 0.20820001 mg/L against a permitted limit of 0.14150001 mg/L (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2025
Cyanide, free available
0% over limit
Discharged 0.01 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Cadmium, total [as Cd]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Cadmium, total [as Cd]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Cyanide, free available
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
June 30, 2025
Cadmium, total [as Cd]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Cadmium, total [as Cd]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Copper, total [as Cu]
4% over limit
Discharged 0.011 mg/L against a permitted limit of 0.0106 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Cyanide, free available
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Cyanide, free available
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
March 31, 2025
Cadmium, total [as Cd]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Cadmium, total [as Cd]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Cyanide, free available
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Cyanide, free available
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Copper, total [as Cu]
468% over limit
Discharged 0.0602 mg/L against a permitted limit of 0.0106 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
55% over limit
Discharged 0.0124 mg/L against a permitted limit of 0.008 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2025
Copper, total [as Cu]
1% over limit
Discharged 0.0081 mg/L against a permitted limit of 0.008 mg/L (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2025
Copper, total [as Cu]
45% over limit
Discharged 0.0154 mg/L against a permitted limit of 0.0106 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
December 31, 2024
Cadmium, total [as Cd]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Cadmium, total [as Cd]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
October 31, 2024
Nitrogen, total [as N]
0% over limit
Discharged 5.6 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
September 30, 2024
Cadmium, total [as Cd]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Cyanide, free available
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Cadmium, total [as Cd]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Cyanide, free available
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 (4 months ago)
Last confirmed
August 15, 2026 (4 hours ago)