CALICHE WATER AND WASTEWATER TREATMENT PLANT
NPDES ID: CO0049042
E — SNC: Effluent violation (monthly average limit)
The facility discharged more of a pollutant than its permit allows, based on a monthly average.
Violations
March 31, 2026
BOD, 5-day, 20 deg. C
117% over limit
Discharged 65 mg/L against a permitted limit of 30 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 10.4 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
27% over limit
Discharged 81 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
638% over limit
Discharged 11.8 mg/L against a permitted limit of 1.6 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
44% over limit
Discharged 65 mg/L against a permitted limit of 45 mg/L (MX 7D AV)
DMR, Limited - Numeric Violation
Solids, total suspended
500% over limit
Discharged 180 mg/L against a permitted limit of 30 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
567% over limit
Discharged 0 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Solids, total suspended
300% over limit
Discharged 180 mg/L against a permitted limit of 45 mg/L (MX 7D AV)
DMR, Limited - Numeric Violation
February 28, 2026
pH
0% over limit
Discharged 10.4 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
215% over limit
Discharged 5.04 mg/L against a permitted limit of 1.6 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
January 31, 2026
pH
0% over limit
Discharged 10.5 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Numeric Violation
Solids, total suspended
44% over limit
Discharged 65 mg/L against a permitted limit of 45 mg/L (MX 7D AV)
DMR, Limited - Numeric Violation
Solids, total suspended
117% over limit
Discharged 65 mg/L against a permitted limit of 30 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
581% over limit
Discharged 10.9 mg/L against a permitted limit of 1.6 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
53% over limit
Discharged 77 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
December 31, 2025
Solids, suspended percent removal
233% over limit
Discharged 50 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
456% over limit
Discharged 8.9 mg/L against a permitted limit of 1.6 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
70% over limit
Discharged 51 mg/L against a permitted limit of 30 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
13% over limit
Discharged 51 mg/L against a permitted limit of 45 mg/L (MX 7D AV)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 10.4 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Numeric Violation
November 30, 2025
Solids, total suspended
17% over limit
Discharged 35 mg/L against a permitted limit of 30 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
489% over limit
Discharged 9.43 mg/L against a permitted limit of 1.6 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 10.3 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Numeric Violation
October 31, 2025
Solids, total suspended
207% over limit
Discharged 138 mg/L against a permitted limit of 45 mg/L (MX 7D AV)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
496% over limit
Discharged 9.53 mg/L against a permitted limit of 1.6 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
167% over limit
Discharged 60 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 10.2 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Numeric Violation
Solids, total suspended
360% over limit
Discharged 138 mg/L against a permitted limit of 30 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
September 30, 2025
Solids, total suspended
258% over limit
Discharged 161 mg/L against a permitted limit of 45 mg/L (MX 7D AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
13% over limit
Discharged 34 mg/L against a permitted limit of 30 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 10.2 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
289% over limit
Discharged 6.22 mg/L against a permitted limit of 1.6 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
567% over limit
Discharged 0 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
20% over limit
Discharged 82 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Solids, total suspended
437% over limit
Discharged 161 mg/L against a permitted limit of 30 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (24 days ago)