ETHETE WATER TREATMENT PLANT
NPDES ID: WYDW0002I
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
April 30, 2026
Aluminum, total [as Al]
1377% over limit
Discharged 1.28500006 mg/L against a permitted limit of 0.087 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
280% over limit
Discharged 114 mg/L against a permitted limit of 30 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
878% over limit
Discharged 440 mg/L against a permitted limit of 45 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Aluminum, total [as Al]
87% over limit
Discharged 1.40000007 mg/L against a permitted limit of 0.75000004 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
March 31, 2026
pH
0% over limit
Discharged 6.05 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Numeric Violation
Aluminum, total [as Al]
544% over limit
Discharged 0.56000003 mg/L against a permitted limit of 0.087 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
February 28, 2026
Aluminum, total [as Al]
613% over limit
Discharged 0.62000003 mg/L against a permitted limit of 0.087 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
January 31, 2026
Aluminum, total [as Al]
60% over limit
Discharged 1.20000006 mg/L against a permitted limit of 0.75000004 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Aluminum, total [as Al]
779% over limit
Discharged 0.76500004 mg/L against a permitted limit of 0.087 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
December 31, 2025
Temperature, water deg. centigrade
0% over limit
Discharged 9.8 deg C against a permitted limit of 0 deg C (DAILY MX)
DMR, Monitor Only - Overdue
Flow, total
0% over limit
Discharged 0.0622335 gal against a permitted limit of 0 gal (MO TOTAL)
DMR, Monitor Only - Overdue
Flow, total
0% over limit
Discharged 0.0067682 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 7.55 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 6 mg/L against a permitted limit of 45 mg/L (DAILY MX)
DMR, Limited - Overdue
Aluminum, total [as Al]
128% over limit
Discharged 1.71000008 mg/L against a permitted limit of 0.75000004 mg/L (DAILY MX)
DMR, Limited - Overdue
Aluminum, total [as Al]
128% over limit
Discharged 1.71000008 mg/L against a permitted limit of 0.75000004 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Chlorine, total residual
0% over limit
Discharged 0.03 mg/L against a permitted limit of 0.05 mg/L (30DA AVG)
DMR, Limited - Overdue
pH
0% over limit
Discharged 6.87 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Overdue
Bromoform
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 4.8 mg/L against a permitted limit of 30 mg/L (30DA AVG)
DMR, Limited - Overdue
Aluminum, total [as Al]
1364% over limit
Discharged 1.27330006 mg/L against a permitted limit of 0.087 mg/L (30DA AVG)
DMR, Limited - Overdue
Aluminum, total [as Al]
1364% over limit
Discharged 1.27330006 mg/L against a permitted limit of 0.087 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Chlorine, total residual
0% over limit
Discharged 0.04 mg/L against a permitted limit of 0.05 mg/L (DAILY MX)
DMR, Limited - Overdue
November 30, 2025
Aluminum, total [as Al]
475% over limit
Discharged 0.50000002 mg/L against a permitted limit of 0.087 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
October 31, 2025
Aluminum, total [as Al]
567% over limit
Discharged 0.58000003 mg/L against a permitted limit of 0.087 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
September 30, 2025
pH
0% over limit
Discharged 7.81 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 8.75 mg/L against a permitted limit of 30 mg/L (30DA AVG)
DMR, Limited - Overdue
Chlorine, total residual
0% over limit
Discharged 0.04 mg/L against a permitted limit of 0.05 mg/L (DAILY MX)
DMR, Limited - Overdue
pH
0% over limit
Discharged 7.05 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 25 mg/L against a permitted limit of 45 mg/L (DAILY MX)
DMR, Limited - Overdue
Chlorine, total residual
0% over limit
Discharged 0.028 mg/L against a permitted limit of 0.05 mg/L (30DA AVG)
DMR, Limited - Overdue
Aluminum, total [as Al]
584% over limit
Discharged 0.59500003 mg/L against a permitted limit of 0.087 mg/L (30DA AVG)
DMR, Limited - Overdue
Aluminum, total [as Al]
584% over limit
Discharged 0.59500003 mg/L against a permitted limit of 0.087 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Aluminum, total [as Al]
15% over limit
Discharged 0.86000004 mg/L against a permitted limit of 0.75000004 mg/L (DAILY MX)
DMR, Limited - Overdue
Aluminum, total [as Al]
15% over limit
Discharged 0.86000004 mg/L against a permitted limit of 0.75000004 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Flow, total
0% over limit
Discharged 0.008971 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
Temperature, water deg. centigrade
0% over limit
Discharged 22.8 deg C against a permitted limit of 0 deg C (DAILY MX)
DMR, Monitor Only - Overdue
Flow, total
0% over limit
Discharged 9e-8 gal against a permitted limit of 0 gal (MO TOTAL)
DMR, Monitor Only - Overdue
August 31, 2025
Chlorine, total residual
2220% over limit
Discharged 1.16 mg/L against a permitted limit of 0.05 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Aluminum, total [as Al]
4182% over limit
Discharged 3.72500018 mg/L against a permitted limit of 0.087 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Chlorine, total residual
360% over limit
Discharged 0.23 mg/L against a permitted limit of 0.05 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Aluminum, total [as Al]
796% over limit
Discharged 6.72000032 mg/L against a permitted limit of 0.75000004 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
July 31, 2025
Chlorine, total residual
0% over limit
Discharged 0.05 mg/L against a permitted limit of 0.05 mg/L (DAILY MX)
DMR, Limited - Overdue
Temperature, water deg. centigrade
0% over limit
Discharged 23.6 deg C against a permitted limit of 0 deg C (DAILY MX)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 5.2 mg/L against a permitted limit of 30 mg/L (30DA AVG)
DMR, Limited - Overdue
Chlorine, total residual
0% over limit
Discharged 0.01 mg/L against a permitted limit of 0.05 mg/L (30DA AVG)
DMR, Limited - Overdue
Aluminum, total [as Al]
152% over limit
Discharged 1.89000009 mg/L against a permitted limit of 0.75000004 mg/L (DAILY MX)
DMR, Limited - Overdue
Aluminum, total [as Al]
152% over limit
Discharged 1.89000009 mg/L against a permitted limit of 0.75000004 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
0% over limit
Discharged 12 mg/L against a permitted limit of 45 mg/L (DAILY MX)
DMR, Limited - Overdue
Flow, total
0% over limit
Discharged 0.00748368 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 7.03 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Overdue
Aluminum, total [as Al]
1371% over limit
Discharged 1.28000006 mg/L against a permitted limit of 0.087 mg/L (30DA AVG)
DMR, Limited - Overdue
Aluminum, total [as Al]
1371% over limit
Discharged 1.28000006 mg/L against a permitted limit of 0.087 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 7.39 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Flow, total
0% over limit
Discharged 0.00000137 gal against a permitted limit of 0 gal (MO TOTAL)
DMR, Monitor Only - Overdue
June 30, 2025
Aluminum, total [as Al]
1733% over limit
Discharged 1.59500008 mg/L against a permitted limit of 0.087 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Aluminum, total [as Al]
199% over limit
Discharged 2.24000011 mg/L against a permitted limit of 0.75000004 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
May 31, 2025
Aluminum, total [as Al]
52% over limit
Discharged 1.14000005 mg/L against a permitted limit of 0.75000004 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Aluminum, total [as Al]
992% over limit
Discharged 0.95000005 mg/L against a permitted limit of 0.087 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
April 30, 2025
Aluminum, total [as Al]
40% over limit
Discharged 1.05000005 mg/L against a permitted limit of 0.75000004 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Aluminum, total [as Al]
1003% over limit
Discharged 0.96000005 mg/L against a permitted limit of 0.087 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
March 31, 2025
Aluminum, total [as Al]
1389% over limit
Discharged 1.29500006 mg/L against a permitted limit of 0.087 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Aluminum, total [as Al]
149% over limit
Discharged 1.87000009 mg/L against a permitted limit of 0.75000004 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
February 28, 2025
Chlorine, total residual
20% over limit
Discharged 0.06 mg/L against a permitted limit of 0.05 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Aluminum, total [as Al]
1251% over limit
Discharged 1.17500006 mg/L against a permitted limit of 0.087 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Aluminum, total [as Al]
79% over limit
Discharged 1.34000006 mg/L against a permitted limit of 0.75000004 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
January 31, 2025
Aluminum, total [as Al]
3% over limit
Discharged 0.77000004 mg/L against a permitted limit of 0.75000004 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Aluminum, total [as Al]
572% over limit
Discharged 0.58500003 mg/L against a permitted limit of 0.087 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
December 31, 2024
Aluminum, total [as Al]
120% over limit
Discharged 1.65000008 mg/L against a permitted limit of 0.75000004 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Aluminum, total [as Al]
1314% over limit
Discharged 1.23000006 mg/L against a permitted limit of 0.087 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
November 30, 2024
Aluminum, total [as Al]
676% over limit
Discharged 0.67500003 mg/L against a permitted limit of 0.087 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
October 31, 2024
Aluminum, total [as Al]
18952% over limit
Discharged 16.57500079 mg/L against a permitted limit of 0.087 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Aluminum, total [as Al]
4233% over limit
Discharged 32.50000154 mg/L against a permitted limit of 0.75000004 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
September 30, 2024
Aluminum, total [as Al]
17% over limit
Discharged 0.88000004 mg/L against a permitted limit of 0.75000004 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Aluminum, total [as Al]
883% over limit
Discharged 0.85500004 mg/L against a permitted limit of 0.087 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
August 31, 2024
Aluminum, total [as Al]
1038% over limit
Discharged 0.99000005 mg/L against a permitted limit of 0.087 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Aluminum, total [as Al]
53% over limit
Discharged 1.15000005 mg/L against a permitted limit of 0.75000004 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
July 31, 2024
Aluminum, total [as Al]
314% over limit
Discharged 0.36000002 mg/L against a permitted limit of 0.087 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)