HARBORTOWN TOWNHOMES STP
NPDES ID: AL0052281
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: 7 effluent violations.
Violations
June 30, 2026
Nitrogen, Kjeldahl, total [as N]
93% over limit
Discharged 37.6 mg/L against a permitted limit of 19.5 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
913% over limit
Discharged 30.4 mg/L against a permitted limit of 3 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
8% over limit
Discharged 16.2 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
691% over limit
Discharged 35.6 mg/L against a permitted limit of 4.5 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, Kjeldahl, total [as N]
150% over limit
Discharged 32.5 mg/L against a permitted limit of 13 mg/L (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2026
Nitrogen, ammonia total [as N]
96% over limit
Discharged 5.89 mg/L against a permitted limit of 3 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
156% over limit
Discharged 11.5 mg/L against a permitted limit of 4.5 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
March 31, 2026
BOD, carb-5 day, 20 deg C, percent removal
6% over limit
Discharged 84.1 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
67% over limit
Discharged 7.5 mg/L against a permitted limit of 4.5 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
January 31, 2026
BOD, carb-5 day, 20 deg C, percent removal
61% over limit
Discharged 75.8 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
June 30, 2025
Nitrogen, ammonia total [as N]
16% over limit
Discharged 5.23 mg/L against a permitted limit of 4.5 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 17, 2026 (8 hours ago)