CAPITAL CROSSINGS MHP WWTP
NPDES ID: MI0056553
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: 8 effluent violations.
Violations
June 30, 2026
Nitrogen, ammonia total [as N]
675% over limit
Discharged 31 mg/L against a permitted limit of 4 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
36% over limit
Discharged 1.54359999 kg/d against a permitted limit of 1.13499999 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
100% over limit
Discharged 30 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
719% over limit
Discharged 16.37 mg/L against a permitted limit of 2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
30% over limit
Discharged 3.00547997 kg/d against a permitted limit of 2.31539998 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
May 31, 2026
Nitrogen, ammonia total [as N]
137% over limit
Discharged 4.73 mg/L against a permitted limit of 2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
7% over limit
Discharged 16.1 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
360% over limit
Discharged 18.4 mg/L against a permitted limit of 4 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
March 31, 2025
BOD, carb-5 day, 20 deg C, percent removal
27% over limit
Discharged 81 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 15, 2026 (11 hours ago)