This is a rebuild of Drinking Water Watch and not yet the official record. Use the agency’s current Drinking Water Watch for anything you need to rely on.
MS0620010 , Sebastopol Water Association
Violations
1–30 of 518 validated violations, most recently determined first. 6 of the 30 listed on this page are recorded as part of 2 violation groups. Across the whole record the agency holds 128 groups, holding 468 violations.
Please note: some of these violations may have been resolved and/or returned to compliance.
Grouped and ungrouped violations are in one list; the group column says which is which.
| Fiscal year | Determined | Violation | Category | Analyte | Facility | Group |
|---|---|---|---|---|---|---|
| 2025 | Mar 19, 2025 | Monitoring, Routine (DBP), Major, 13940 | Monitoring | TTHM | Distribution DS000 | 2025-48301 TTHM/Haa5 |
| 2025 | Mar 19, 2025 | Monitoring, Routine (DBP), Major, 13941 | Monitoring | Total Haloacetic Acids (Haa5) | Distribution DS000 | 2025-48301 TTHM/Haa5 |
| 2013 | Jan 15, 2013 | Monitoring, Routine Major, 13873 | Monitoring | Combined Uranium | Treatment Facility TF101 | Not in a group |
| 2013 | Jan 15, 2013 | Monitoring, Routine Major, 13874 | Monitoring | Combined Uranium | Treatment Facility TF106 | Not in a group |
| 2013 | Jan 15, 2013 | Monitoring, Routine Major, 13875 | Monitoring | Combined Uranium | Treatment Facility TF103 | Not in a group |
| 2013 | Jan 15, 2013 | Monitoring, Routine Major, 13876 | Monitoring | Combined Uranium | Treatment Facility TF102 | Not in a group |
| 2013 | Jan 15, 2013 | Monitoring, Routine Major, 13877 | Monitoring | Combined Uranium | Treatment Facility TF107 | Not in a group |
| 2013 | Jan 15, 2013 | Monitoring, Routine Major, 13878 | Monitoring | Combined Uranium | Treatment Facility TF105 | Not in a group |
| 2013 | Jan 15, 2013 | Monitoring, Routine Major, 13879 | Monitoring | Radium-226 | Treatment Facility TF107 | Not in a group |
| 2013 | Jan 15, 2013 | Monitoring, Routine Major, 13880 | Monitoring | Radium-226 | Treatment Facility TF105 | Not in a group |
| 2013 | Jan 15, 2013 | Monitoring, Routine Major, 13881 | Monitoring | Radium-226 | Treatment Facility TF102 | Not in a group |
| 2013 | Jan 15, 2013 | Monitoring, Routine Major, 13882 | Monitoring | Radium-226 | Treatment Facility TF103 | Not in a group |
| 2013 | Jan 15, 2013 | Monitoring, Routine Major, 13883 | Monitoring | Radium-226 | Treatment Facility TF106 | Not in a group |
| 2013 | Jan 15, 2013 | Monitoring, Routine Major, 13884 | Monitoring | Radium-226 | Treatment Facility TF101 | Not in a group |
| 2013 | Jan 15, 2013 | Monitoring, Routine Major, 13885 | Monitoring | Radium-228 | Treatment Facility TF103 | Not in a group |
| 2013 | Jan 15, 2013 | Monitoring, Routine Major, 13886 | Monitoring | Radium-228 | Treatment Facility TF102 | Not in a group |
| 2013 | Jan 15, 2013 | Monitoring, Routine Major, 13887 | Monitoring | Radium-228 | Treatment Facility TF107 | Not in a group |
| 2013 | Jan 15, 2013 | Monitoring, Routine Major, 13888 | Monitoring | Radium-228 | Treatment Facility TF105 | Not in a group |
| 2013 | Jan 15, 2013 | Monitoring, Routine Major, 13889 | Monitoring | Radium-228 | Treatment Facility TF106 | Not in a group |
| 2013 | Jan 15, 2013 | Monitoring, Routine Major, 13890 | Monitoring | Radium-228 | Treatment Facility TF101 | Not in a group |
| 2013 | Jan 15, 2013 | Monitoring, Routine Major, 13891 | Monitoring | Gross Alpha Particle Activity | Treatment Facility TF103 | Not in a group |
| 2013 | Jan 15, 2013 | Monitoring, Routine Major, 13892 | Monitoring | Gross Alpha Particle Activity | Treatment Facility TF101 | Not in a group |
| 2013 | Jan 15, 2013 | Monitoring, Routine Major, 13893 | Monitoring | Gross Alpha Particle Activity | Treatment Facility TF102 | Not in a group |
| 2013 | Jan 15, 2013 | Monitoring, Routine Major, 13894 | Monitoring | Gross Alpha Particle Activity | Treatment Facility TF105 | Not in a group |
| 2013 | Jan 15, 2013 | Monitoring, Routine Major, 13895 | Monitoring | Gross Alpha Particle Activity | Treatment Facility TF106 | Not in a group |
| 2013 | Jan 15, 2013 | Monitoring, Routine Major, 13896 | Monitoring | Gross Alpha Particle Activity | Treatment Facility TF107 | Not in a group |
| 2013 | Oct 9, 2012 | Monitoring, Routine Major, 13849 | Monitoring | Combined Uranium | Treatment Facility TF106 | 2013-41277 Z Radiologicals |
| 2013 | Oct 9, 2012 | Monitoring, Routine Major, 13850 | Monitoring | Radium-226 | Treatment Facility TF106 | 2013-41277 Z Radiologicals |
| 2013 | Oct 9, 2012 | Monitoring, Routine Major, 13851 | Monitoring | Radium-228 | Treatment Facility TF106 | 2013-41277 Z Radiologicals |
| 2013 | Oct 9, 2012 | Monitoring, Routine Major, 13852 | Monitoring | Gross Alpha Particle Activity | Treatment Facility TF106 | 2013-41277 Z Radiologicals |
-
Monitoring, Routine (DBP), Major, 13940
- Determined
- Mar 19, 2025
- Category
- Monitoring
- Analyte
- TTHM
- Facility
- Distribution DS000
- Fiscal year
- 2025
- Group
- 2025-48301 TTHM/Haa5
-
Monitoring, Routine (DBP), Major, 13941
- Determined
- Mar 19, 2025
- Category
- Monitoring
- Analyte
- Total Haloacetic Acids (Haa5)
- Facility
- Distribution DS000
- Fiscal year
- 2025
- Group
- 2025-48301 TTHM/Haa5
-
Monitoring, Routine Major, 13873
- Determined
- Jan 15, 2013
- Category
- Monitoring
- Analyte
- Combined Uranium
- Facility
- Treatment Facility TF101
- Fiscal year
- 2013
- Group
- Not in a group
-
Monitoring, Routine Major, 13874
- Determined
- Jan 15, 2013
- Category
- Monitoring
- Analyte
- Combined Uranium
- Facility
- Treatment Facility TF106
- Fiscal year
- 2013
- Group
- Not in a group
-
Monitoring, Routine Major, 13875
- Determined
- Jan 15, 2013
- Category
- Monitoring
- Analyte
- Combined Uranium
- Facility
- Treatment Facility TF103
- Fiscal year
- 2013
- Group
- Not in a group
-
Monitoring, Routine Major, 13876
- Determined
- Jan 15, 2013
- Category
- Monitoring
- Analyte
- Combined Uranium
- Facility
- Treatment Facility TF102
- Fiscal year
- 2013
- Group
- Not in a group
-
Monitoring, Routine Major, 13877
- Determined
- Jan 15, 2013
- Category
- Monitoring
- Analyte
- Combined Uranium
- Facility
- Treatment Facility TF107
- Fiscal year
- 2013
- Group
- Not in a group
-
Monitoring, Routine Major, 13878
- Determined
- Jan 15, 2013
- Category
- Monitoring
- Analyte
- Combined Uranium
- Facility
- Treatment Facility TF105
- Fiscal year
- 2013
- Group
- Not in a group
-
Monitoring, Routine Major, 13879
- Determined
- Jan 15, 2013
- Category
- Monitoring
- Analyte
- Radium-226
- Facility
- Treatment Facility TF107
- Fiscal year
- 2013
- Group
- Not in a group
-
Monitoring, Routine Major, 13880
- Determined
- Jan 15, 2013
- Category
- Monitoring
- Analyte
- Radium-226
- Facility
- Treatment Facility TF105
- Fiscal year
- 2013
- Group
- Not in a group
-
Monitoring, Routine Major, 13881
- Determined
- Jan 15, 2013
- Category
- Monitoring
- Analyte
- Radium-226
- Facility
- Treatment Facility TF102
- Fiscal year
- 2013
- Group
- Not in a group
-
Monitoring, Routine Major, 13882
- Determined
- Jan 15, 2013
- Category
- Monitoring
- Analyte
- Radium-226
- Facility
- Treatment Facility TF103
- Fiscal year
- 2013
- Group
- Not in a group
-
Monitoring, Routine Major, 13883
- Determined
- Jan 15, 2013
- Category
- Monitoring
- Analyte
- Radium-226
- Facility
- Treatment Facility TF106
- Fiscal year
- 2013
- Group
- Not in a group
-
Monitoring, Routine Major, 13884
- Determined
- Jan 15, 2013
- Category
- Monitoring
- Analyte
- Radium-226
- Facility
- Treatment Facility TF101
- Fiscal year
- 2013
- Group
- Not in a group
-
Monitoring, Routine Major, 13885
- Determined
- Jan 15, 2013
- Category
- Monitoring
- Analyte
- Radium-228
- Facility
- Treatment Facility TF103
- Fiscal year
- 2013
- Group
- Not in a group
-
Monitoring, Routine Major, 13886
- Determined
- Jan 15, 2013
- Category
- Monitoring
- Analyte
- Radium-228
- Facility
- Treatment Facility TF102
- Fiscal year
- 2013
- Group
- Not in a group
-
Monitoring, Routine Major, 13887
- Determined
- Jan 15, 2013
- Category
- Monitoring
- Analyte
- Radium-228
- Facility
- Treatment Facility TF107
- Fiscal year
- 2013
- Group
- Not in a group
-
Monitoring, Routine Major, 13888
- Determined
- Jan 15, 2013
- Category
- Monitoring
- Analyte
- Radium-228
- Facility
- Treatment Facility TF105
- Fiscal year
- 2013
- Group
- Not in a group
-
Monitoring, Routine Major, 13889
- Determined
- Jan 15, 2013
- Category
- Monitoring
- Analyte
- Radium-228
- Facility
- Treatment Facility TF106
- Fiscal year
- 2013
- Group
- Not in a group
-
Monitoring, Routine Major, 13890
- Determined
- Jan 15, 2013
- Category
- Monitoring
- Analyte
- Radium-228
- Facility
- Treatment Facility TF101
- Fiscal year
- 2013
- Group
- Not in a group
-
Monitoring, Routine Major, 13891
- Determined
- Jan 15, 2013
- Category
- Monitoring
- Analyte
- Gross Alpha Particle Activity
- Facility
- Treatment Facility TF103
- Fiscal year
- 2013
- Group
- Not in a group
-
Monitoring, Routine Major, 13892
- Determined
- Jan 15, 2013
- Category
- Monitoring
- Analyte
- Gross Alpha Particle Activity
- Facility
- Treatment Facility TF101
- Fiscal year
- 2013
- Group
- Not in a group
-
Monitoring, Routine Major, 13893
- Determined
- Jan 15, 2013
- Category
- Monitoring
- Analyte
- Gross Alpha Particle Activity
- Facility
- Treatment Facility TF102
- Fiscal year
- 2013
- Group
- Not in a group
-
Monitoring, Routine Major, 13894
- Determined
- Jan 15, 2013
- Category
- Monitoring
- Analyte
- Gross Alpha Particle Activity
- Facility
- Treatment Facility TF105
- Fiscal year
- 2013
- Group
- Not in a group
-
Monitoring, Routine Major, 13895
- Determined
- Jan 15, 2013
- Category
- Monitoring
- Analyte
- Gross Alpha Particle Activity
- Facility
- Treatment Facility TF106
- Fiscal year
- 2013
- Group
- Not in a group
-
Monitoring, Routine Major, 13896
- Determined
- Jan 15, 2013
- Category
- Monitoring
- Analyte
- Gross Alpha Particle Activity
- Facility
- Treatment Facility TF107
- Fiscal year
- 2013
- Group
- Not in a group
-
Monitoring, Routine Major, 13849
- Determined
- Oct 9, 2012
- Category
- Monitoring
- Analyte
- Combined Uranium
- Facility
- Treatment Facility TF106
- Fiscal year
- 2013
- Group
- 2013-41277 Z Radiologicals
-
Monitoring, Routine Major, 13850
- Determined
- Oct 9, 2012
- Category
- Monitoring
- Analyte
- Radium-226
- Facility
- Treatment Facility TF106
- Fiscal year
- 2013
- Group
- 2013-41277 Z Radiologicals
-
Monitoring, Routine Major, 13851
- Determined
- Oct 9, 2012
- Category
- Monitoring
- Analyte
- Radium-228
- Facility
- Treatment Facility TF106
- Fiscal year
- 2013
- Group
- 2013-41277 Z Radiologicals
-
Monitoring, Routine Major, 13852
- Determined
- Oct 9, 2012
- Category
- Monitoring
- Analyte
- Gross Alpha Particle Activity
- Facility
- Treatment Facility TF106
- Fiscal year
- 2013
- Group
- 2013-41277 Z Radiologicals