RISCO MUNICIPAL WWTF
NPDES ID: MO0025852
D — SNC: Discharge monitoring report not received
The facility didn't submit its required discharge monitoring report.
This quarter: 1 effluent violation, 28 reporting violations.
Violations
May 31, 2026
Oil and grease [soxhlet extr.] tot.
0% over limit
Discharged 2 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Overdue
Oil and grease [soxhlet extr.] tot.
0% over limit
Discharged 2 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.009 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
E. coli
0% over limit
Discharged 1 MPN/100mL against a permitted limit of 1030 MPN/100mL (7 DA GEO)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 11.7 mg/L against a permitted limit of 65 mg/L (WKLY AVG)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 0.098 mg/L against a permitted limit of 3.6 mg/L (DAILY MX)
DMR, Limited - Overdue
First flagged
April 14, 2026 (5 months ago)
Last confirmed
September 15, 2026 (5 days ago)