CENTRAL CLEAR CREEK SD WWTF
NPDES ID: COG590055
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: 4 effluent violations.
Violations
June 30, 2026
Copper, potentially dissolved
42% over limit
Discharged 0.0111 mg/L against a permitted limit of 0.0078 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Copper, potentially dissolved
13% over limit
Discharged 0.0135 mg/L against a permitted limit of 0.012 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
May 31, 2026
Copper, potentially dissolved
7% over limit
Discharged 0.0128 mg/L against a permitted limit of 0.012 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
April 30, 2026
Copper, potentially dissolved
26% over limit
Discharged 0.0098 mg/L against a permitted limit of 0.0078 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
October 31, 2025
Copper, potentially dissolved
53% over limit
Discharged 0.0183 mg/L against a permitted limit of 0.012 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, potentially dissolved
135% over limit
Discharged 0.0183 mg/L against a permitted limit of 0.0078 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
September 30, 2025
Copper, potentially dissolved
96% over limit
Discharged 0.0153 mg/L against a permitted limit of 0.0078 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Copper, potentially dissolved
28% over limit
Discharged 0.0153 mg/L against a permitted limit of 0.012 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
August 31, 2025
Copper, potentially dissolved
55% over limit
Discharged 0.0121 mg/L against a permitted limit of 0.0078 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Copper, potentially dissolved
1% over limit
Discharged 0.0121 mg/L against a permitted limit of 0.012 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
July 31, 2025
Copper, potentially dissolved
53% over limit
Discharged 0.0183 mg/L against a permitted limit of 0.012 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, potentially dissolved
135% over limit
Discharged 0.0183 mg/L against a permitted limit of 0.0078 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
June 30, 2025
Copper, potentially dissolved
23% over limit
Discharged 0.0147 mg/L against a permitted limit of 0.012 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, potentially dissolved
88% over limit
Discharged 0.0147 mg/L against a permitted limit of 0.0078 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
May 31, 2025
Copper, potentially dissolved
12% over limit
Discharged 0.0087 mg/L against a permitted limit of 0.0078 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
April 30, 2025
Copper, potentially dissolved
140% over limit
Discharged 0.0187 mg/L against a permitted limit of 0.0078 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Copper, potentially dissolved
56% over limit
Discharged 0.0187 mg/L against a permitted limit of 0.012 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
March 31, 2025
Copper, potentially dissolved
61% over limit
Discharged 0.0193 mg/L against a permitted limit of 0.012 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, potentially dissolved
147% over limit
Discharged 0.0193 mg/L against a permitted limit of 0.0078 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
February 28, 2025
Copper, potentially dissolved
38% over limit
Discharged 0.0166 mg/L against a permitted limit of 0.012 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, potentially dissolved
113% over limit
Discharged 0.0166 mg/L against a permitted limit of 0.0078 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
January 31, 2025
Copper, potentially dissolved
66% over limit
Discharged 0.0199 mg/L against a permitted limit of 0.012 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, potentially dissolved
155% over limit
Discharged 0.0199 mg/L against a permitted limit of 0.0078 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
December 31, 2024
Copper, potentially dissolved
23% over limit
Discharged 0.0147 mg/L against a permitted limit of 0.012 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, potentially dissolved
88% over limit
Discharged 0.0147 mg/L against a permitted limit of 0.0078 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
November 30, 2024
Copper, potentially dissolved
71% over limit
Discharged 0.0205 mg/L against a permitted limit of 0.012 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, potentially dissolved
163% over limit
Discharged 0.0205 mg/L against a permitted limit of 0.0078 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 16, 2026 (3 hours ago)