NORTH IDAHO CORRECTIONAL INSTITUTION - WWTP
NPDES ID: ID0025887
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: 5 effluent violations.
Violations
June 30, 2026
Nitrogen, ammonia total [as N]
234% over limit
Discharged 11.35 mg/L against a permitted limit of 3.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
181% over limit
Discharged 1.14861999 kg/d against a permitted limit of 0.4086 kg/d (MO AVG)
DMR, Limited - Numeric Violation
May 31, 2026
Nitrogen, ammonia total [as N]
48% over limit
Discharged 5.02 mg/L against a permitted limit of 3.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
43% over limit
Discharged 0.58566 kg/d against a permitted limit of 0.4086 kg/d (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2026
pH
0% over limit
Discharged 9.1 SU against a permitted limit of 9 SU (INST MAX)
DMR, Limited - Numeric Violation
October 31, 2025
Nitrogen, ammonia total [as N]
189% over limit
Discharged 1.18039999 kg/d against a permitted limit of 0.4086 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
53% over limit
Discharged 2.42435998 kg/d against a permitted limit of 1.58899999 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
215% over limit
Discharged 10.71 mg/L against a permitted limit of 3.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
44% over limit
Discharged 20.2 mg/L against a permitted limit of 14 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
September 30, 2025
Nitrogen, ammonia total [as N]
29% over limit
Discharged 4.39 mg/L against a permitted limit of 3.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
August 31, 2025
Nitrogen, ammonia total [as N]
10% over limit
Discharged 3.74 mg/L against a permitted limit of 3.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
July 31, 2025
Nitrogen, ammonia total [as N]
44% over limit
Discharged 4.88 mg/L against a permitted limit of 3.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
23% over limit
Discharged 0.50394 kg/d against a permitted limit of 0.4086 kg/d (MO AVG)
DMR, Limited - Numeric Violation
June 30, 2025
Nitrogen, ammonia total [as N]
52% over limit
Discharged 5.17 mg/L against a permitted limit of 3.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
34% over limit
Discharged 0.54934 kg/d against a permitted limit of 0.4086 kg/d (MO AVG)
DMR, Limited - Numeric Violation
May 31, 2025
Nitrogen, ammonia total [as N]
1% over limit
Discharged 3.42 mg/L against a permitted limit of 3.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2025
Solids, total suspended
65% over limit
Discharged 8.23555993 kg/d against a permitted limit of 4.99399996 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
12% over limit
Discharged 50.4 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
November 30, 2024
Nitrogen, ammonia total [as N]
99% over limit
Discharged 0.81265999 kg/d against a permitted limit of 0.4086 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
69% over limit
Discharged 5.73 mg/L against a permitted limit of 3.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
9% over limit
Discharged 1.73881999 kg/d against a permitted limit of 1.58899999 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
September 30, 2024
pH
0% over limit
Discharged 6.4 SU against a permitted limit of 6.5 SU (INST MIN)
DMR, Limited - Numeric Violation
August 31, 2024
pH
0% over limit
Discharged 5.9 SU against a permitted limit of 6.5 SU (INST MIN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
9% over limit
Discharged 3.69 mg/L against a permitted limit of 3.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 15, 2026 (7 hours ago)