LEAVITT E. MAGRATH WASTEWATER TREATMENT PLAN
NPDES ID: NH0100625
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, 1 single-event violation.
Violations
June 30, 2026
Copper, total [as Cu]
36% over limit
Discharged 0.0079 mg/L against a permitted limit of 0.0058 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
86% over limit
Discharged 0.0069 mg/L against a permitted limit of 0.0037 mg/L (MO AVG)
DMR, Limited - Numeric Violation
May 31, 2026
Copper, total [as Cu]
46% over limit
Discharged 0.0054 mg/L against a permitted limit of 0.0037 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
3% over limit
Discharged 0.006 mg/L against a permitted limit of 0.0058 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
April 30, 2026
Copper, total [as Cu]
5% over limit
Discharged 0.0061 mg/L against a permitted limit of 0.0058 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
43% over limit
Discharged 0.0053 mg/L against a permitted limit of 0.0037 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2026
pH
0% over limit
Discharged 6.4 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Numeric Violation
October 31, 2025
Copper, total [as Cu]
21% over limit
Discharged 0.029 mg/L against a permitted limit of 0.024 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
August 31, 2024
Enterococci
30% over limit
Discharged 135.4 MPN/100mL against a permitted limit of 104 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 15, 2026 (12 hours ago)