BEAMAN CITY OF STP
NPDES ID: IA0058734
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: 5 effluent violations.
Violations
May 31, 2026
BOD, carbonaceous [5 day, 20 C]
64% over limit
Discharged 41 mg/L against a permitted limit of 25 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
49% over limit
Discharged 119 mg/L against a permitted limit of 80 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
3% over limit
Discharged 41 mg/L against a permitted limit of 40 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 10.2 SU against a permitted limit of 9 SU (DAILY MX)
DMR, Limited - Numeric Violation
April 30, 2026
BOD, carbonaceous [5 day, 20 C]
48% over limit
Discharged 37 mg/L against a permitted limit of 25 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
November 30, 2024
Solids, total suspended
18% over limit
Discharged 141 mg/L against a permitted limit of 120 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
76% over limit
Discharged 141 mg/L against a permitted limit of 80 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 17, 2026 (6 hours ago)