TRES VALLES WEST WATER TREATMENT FACILITY
NPDES ID: COG641215
D — SNC: Discharge monitoring report not received
The facility didn't submit its required discharge monitoring report.
This quarter: 12 reporting violations.
Violations
March 31, 2026
pH
0% over limit
Discharged 0 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Aluminum, total recoverable
0% over limit
Discharged 0 mg/L against a permitted limit of 0.68500003 mg/L (30DA AVG)
DMR, Limited - Overdue
Chloride [as Cl]
0% over limit
Discharged 0 mg/L against a permitted limit of 250 mg/L (30DA AVG)
DMR, Limited - Overdue
Oil and grease
0% over limit
Discharged 0 mg/L against a permitted limit of 10 mg/L (INST MAX)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
Chlorine, total residual
0% over limit
Discharged 0 mg/L against a permitted limit of 0.011 mg/L (30DA AVG)
DMR, Limited - Overdue
Aluminum, total recoverable
0% over limit
Discharged 0 mg/L against a permitted limit of 4.79700023 mg/L (DAILY MX)
DMR, Limited - Overdue
Oil and grease visual
0% over limit
Discharged 0 pass=0;fail=1 against a permitted limit of 0 pass=0;fail=1 (INST MAX)
DMR, Monitor Only - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (30DA AVG)
DMR, Monitor Only - Overdue
Chlorine, total residual
0% over limit
Discharged 0 mg/L against a permitted limit of 0.019 mg/L (INST MAX)
DMR, Limited - Overdue
Sulfate
0% over limit
Discharged 0 mg/L against a permitted limit of 250 mg/L (30DA AVG)
DMR, Limited - Overdue
December 31, 2025
Chloride [as Cl]
0% over limit
Discharged 0 mg/L against a permitted limit of 250 mg/L (30DA AVG)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
Oil and grease visual
0% over limit
Discharged 0 pass=0;fail=1 against a permitted limit of 0 pass=0;fail=1 (INST MAX)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (30DA AVG)
DMR, Monitor Only - Overdue
Aluminum, total recoverable
0% over limit
Discharged 0 mg/L against a permitted limit of 0.68500003 mg/L (30DA AVG)
DMR, Limited - Overdue
Oil and grease
0% over limit
Discharged 0 mg/L against a permitted limit of 10 mg/L (INST MAX)
DMR, Limited - Overdue
Chlorine, total residual
0% over limit
Discharged 0 mg/L against a permitted limit of 0.019 mg/L (INST MAX)
DMR, Limited - Overdue
Aluminum, total recoverable
0% over limit
Discharged 0 mg/L against a permitted limit of 4.79700023 mg/L (DAILY MX)
DMR, Limited - Overdue
Chlorine, total residual
0% over limit
Discharged 0 mg/L against a permitted limit of 0.011 mg/L (30DA AVG)
DMR, Limited - Overdue
Sulfate
0% over limit
Discharged 0 mg/L against a permitted limit of 250 mg/L (30DA AVG)
DMR, Limited - Overdue
September 30, 2025
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (30DA AVG)
DMR, Monitor Only - Overdue
Sulfate
0% over limit
Discharged 0 mg/L against a permitted limit of 250 mg/L (30DA AVG)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
Oil and grease visual
0% over limit
Discharged 0 pass=0;fail=1 against a permitted limit of 0 pass=0;fail=1 (INST MAX)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Overdue
Aluminum, total recoverable
0% over limit
Discharged 0 mg/L against a permitted limit of 4.79700023 mg/L (DAILY MX)
DMR, Limited - Overdue
Oil and grease
0% over limit
Discharged 0 mg/L against a permitted limit of 10 mg/L (INST MAX)
DMR, Limited - Overdue
Chlorine, total residual
0% over limit
Discharged 0 mg/L against a permitted limit of 0.019 mg/L (INST MAX)
DMR, Limited - Overdue
Chlorine, total residual
0% over limit
Discharged 0 mg/L against a permitted limit of 0.011 mg/L (30DA AVG)
DMR, Limited - Overdue
Chloride [as Cl]
0% over limit
Discharged 0 mg/L against a permitted limit of 250 mg/L (30DA AVG)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Aluminum, total recoverable
0% over limit
Discharged 0 mg/L against a permitted limit of 0.68500003 mg/L (30DA AVG)
DMR, Limited - Overdue
June 30, 2025
Chlorine, total residual
0% over limit
Discharged 0 mg/L against a permitted limit of 0.019 mg/L (INST MAX)
DMR, Limited - Overdue
Sulfate
0% over limit
Discharged 0 mg/L against a permitted limit of 250 mg/L (30DA AVG)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Chloride [as Cl]
0% over limit
Discharged 0 mg/L against a permitted limit of 250 mg/L (30DA AVG)
DMR, Limited - Overdue
Oil and grease visual
0% over limit
Discharged 0 pass=0;fail=1 against a permitted limit of 0 pass=0;fail=1 (INST MAX)
DMR, Monitor Only - Overdue
Chlorine, total residual
0% over limit
Discharged 0 mg/L against a permitted limit of 0.011 mg/L (30DA AVG)
DMR, Limited - Overdue
Aluminum, total recoverable
0% over limit
Discharged 0 mg/L against a permitted limit of 0.68500003 mg/L (30DA AVG)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Overdue
Oil and grease
0% over limit
Discharged 0 mg/L against a permitted limit of 10 mg/L (INST MAX)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (30DA AVG)
DMR, Monitor Only - Overdue
Aluminum, total recoverable
0% over limit
Discharged 0 mg/L against a permitted limit of 4.79700023 mg/L (DAILY MX)
DMR, Limited - Overdue
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)