HUDSON R-9 SCHOOL DISTRICT WWTP
NPDES ID: MO0107808
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
Solids, suspended percent removal
253% over limit
Discharged 47 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
E. coli
2249% over limit
Discharged 24196 MPN/100mL against a permitted limit of 1030 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
15% over limit
Discharged 34.6 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
411% over limit
Discharged 9.2 mg/L against a permitted limit of 1.8 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
11% over limit
Discharged 50 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
67% over limit
Discharged 50 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (5 months ago)
Last confirmed
September 15, 2026 (6 days ago)