NEWPORT WASTEWATER TREATMENT FACILITY
NPDES ID: NH0100200
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, 2 single-event violations.
Violations
June 30, 2026
Copper, total recoverable
30% over limit
Discharged 0.0172 mg/L against a permitted limit of 0.0132 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total recoverable
179% over limit
Discharged 0.048 mg/L against a permitted limit of 0.0172 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
April 30, 2026
E. coli, thermotol, MF, MTEC
39% over limit
Discharged 563.5 MPN/100mL against a permitted limit of 406 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
March 31, 2026
Copper, total recoverable
40% over limit
Discharged 0.024 mg/L against a permitted limit of 0.0172 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
LC50 Static 48Hr Acute Pimephales promelas
27% over limit
Discharged 72.97 % against a permitted limit of 100 % (MO AV MN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
7% over limit
Discharged 28 mg/L against a permitted limit of 26.1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (5 months ago)
Last confirmed
September 15, 2026 (5 days ago)