BELMOND CITY OF STP
NPDES ID: IA0041777
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: 15 effluent violations.
Violations
June 30, 2026
Copper, total [as Cu]
87% over limit
Discharged 0.15776591 kg/d against a permitted limit of 0.084444 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
303% over limit
Discharged 0.129 mg/L against a permitted limit of 0.032 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
125% over limit
Discharged 67.6 mg/L against a permitted limit of 30 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
24% over limit
Discharged 0.1044545 kg/d against a permitted limit of 0.084444 kg/d (30DA AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
22% over limit
Discharged 55 mg/L against a permitted limit of 45 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
164% over limit
Discharged 0.0846 mg/L against a permitted limit of 0.032 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
May 31, 2026
Copper, total [as Cu]
250% over limit
Discharged 0.29522212 kg/d against a permitted limit of 0.084444 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
216% over limit
Discharged 142 mg/L against a permitted limit of 45 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
10% over limit
Discharged 96.75965719 kg/d against a permitted limit of 87.62199926 kg/d (30DA AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
115% over limit
Discharged 0.18160635 kg/d against a permitted limit of 0.084444 kg/d (30DA AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
144% over limit
Discharged 73.3 mg/L against a permitted limit of 30 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
43% over limit
Discharged 187.10674603 kg/d against a permitted limit of 131.2059989 kg/d (7 DA AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
606% over limit
Discharged 0.226 mg/L against a permitted limit of 0.032 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
335% over limit
Discharged 0.1391 mg/L against a permitted limit of 0.032 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
April 30, 2026
Solids, total suspended
16% over limit
Discharged 52 mg/L against a permitted limit of 45 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
March 31, 2026
Solids, total suspended
93% over limit
Discharged 87 mg/L against a permitted limit of 45 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
January 31, 2026
Solids, total suspended
32% over limit
Discharged 39.5 mg/L against a permitted limit of 30 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
47% over limit
Discharged 66 mg/L against a permitted limit of 45 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
December 31, 2025
Solids, total suspended
20% over limit
Discharged 54 mg/L against a permitted limit of 45 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
31% over limit
Discharged 39.28 mg/L against a permitted limit of 30 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
October 31, 2025
Solids, total suspended
48% over limit
Discharged 66.5 mg/L against a permitted limit of 45 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
3% over limit
Discharged 30.95 mg/L against a permitted limit of 30 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
August 31, 2025
Copper, total [as Cu]
322% over limit
Discharged 0.135 mg/L against a permitted limit of 0.032 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
744% over limit
Discharged 0.27 mg/L against a permitted limit of 0.032 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
565% over limit
Discharged 0.56125205 kg/d against a permitted limit of 0.084444 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
232% over limit
Discharged 0.28062602 kg/d against a permitted limit of 0.084444 kg/d (30DA AVG)
DMR, Limited - Numeric Violation
July 31, 2025
Solids, total suspended
51% over limit
Discharged 68 mg/L against a permitted limit of 45 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
June 30, 2025
Solids, total suspended
211% over limit
Discharged 140 mg/L against a permitted limit of 45 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
116% over limit
Discharged 64.86 mg/L against a permitted limit of 30 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
4% over limit
Discharged 91.10281723 kg/d against a permitted limit of 87.62199926 kg/d (30DA AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
47% over limit
Discharged 193.48299437 kg/d against a permitted limit of 131.2059989 kg/d (7 DA AVG)
DMR, Limited - Numeric Violation
May 31, 2025
Copper, total [as Cu]
78% over limit
Discharged 0.15064401 kg/d against a permitted limit of 0.084444 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
78% over limit
Discharged 0.057 mg/L against a permitted limit of 0.032 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
256% over limit
Discharged 0.114 mg/L against a permitted limit of 0.032 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 16, 2026 (13 minutes ago)