THE HIGHLANDS WWTF
NPDES ID: MO0039012
E — SNC: Effluent violation (monthly average limit)
The facility discharged more of a pollutant than its permit allows, based on a monthly average.
Violations
March 31, 2026
Nitrogen, ammonia total [as N]
621% over limit
Discharged 20.9 mg/L against a permitted limit of 2.9 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
186% over limit
Discharged 20.9 mg/L against a permitted limit of 7.3 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
December 31, 2025
E. coli
135% over limit
Discharged 2419.6 MPN/100mL against a permitted limit of 1030 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
757% over limit
Discharged 18.85 mg/L against a permitted limit of 2.2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli
1075% over limit
Discharged 2419.6 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
158% over limit
Discharged 18.85 mg/L against a permitted limit of 7.3 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
September 30, 2025
Nitrogen, ammonia total [as N]
88% over limit
Discharged 7.51 mg/L against a permitted limit of 4 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
651% over limit
Discharged 7.51 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2025
Nitrogen, ammonia total [as N]
256% over limit
Discharged 26 mg/L against a permitted limit of 7.3 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
552% over limit
Discharged 18.9 mg/L against a permitted limit of 2.9 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2024
Nitrogen, ammonia total [as N]
564% over limit
Discharged 19.25 mg/L against a permitted limit of 2.9 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
174% over limit
Discharged 20 mg/L against a permitted limit of 7.3 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
September 30, 2024
Nitrogen, ammonia total [as N]
807% over limit
Discharged 12.7 mg/L against a permitted limit of 1.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
218% over limit
Discharged 12.7 mg/L against a permitted limit of 4 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)