REVERSE OSMOSIS WTP
NPDES ID: CO0046728
S — SNC: Compliance schedule violation
The facility missed a deadline in its compliance schedule by more than 90 days.
This quarter: 1 effluent violation.
Violations
June 30, 2026
LC50 Static Renewal 48Hr Acute Ceriodaphnia dubia
37% over limit
Discharged 62.61 % against a permitted limit of 100 % (MN VALUE)
DMR, Limited - Numeric Violation
March 31, 2026
LC50 Static Renewal 48Hr Acute Ceriodaphnia dubia
28% over limit
Discharged 71.7 % against a permitted limit of 100 % (MN VALUE)
DMR, Limited - Numeric Violation
December 31, 2025
LC50 Static Renewal 48Hr Acute Ceriodaphnia dubia
20% over limit
Discharged 79.68 % against a permitted limit of 100 % (MN VALUE)
DMR, Limited - Numeric Violation
June 30, 2025
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 45 mg/L (MX 7D AV)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 30 mg/L (30DA AVG)
DMR, Limited - Overdue
March 31, 2025
LC50 Static Renewal 48Hr Acute Ceriodaphnia dubia
43% over limit
Discharged 56.78 % against a permitted limit of 100 % (MN VALUE)
DMR, Limited - Numeric Violation
December 31, 2024
LC50 Static Renewal 48Hr Acute Ceriodaphnia dubia
37% over limit
Discharged 62.71 % against a permitted limit of 100 % (MN VALUE)
DMR, Limited - Numeric Violation
September 30, 2024
LC50 Static Renewal 48Hr Acute Ceriodaphnia dubia
38% over limit
Discharged 62.38 % against a permitted limit of 100 % (MN VALUE)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
August 1, 2026 (5 days ago)