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.
Chemical and radiological sample results
MS0770002 , Clara Water Association
35 of the 74 analytes this system has been tested for have been detected at least once, across 1,028 samples on record.
The other 39 were tested for and never found. An analyte is counted here if any result on record measured it, so this covers the whole history and not the samples listed below.
Across all 1,028 samples on record, detections range from November 3, 2003 to June 4, 2026. These figures cover the whole record.
What counts as a non-detect is defined in the help: Less than Indicator. This system’s violations.
What has been detected, ever
Every analyte measured above its reporting level at any point in this system’s record, most often detected first. This is not limited to the samples listed below.
| Analyte | Kind | Detected in | First detected | Last detected |
|---|---|---|---|---|
| Copper, Free 1022 | Inorganic Chemical | 799 of 801 results | Jun 24, 2004 | Jun 4, 2026 |
| Lead 1030 | Inorganic Chemical | 507 of 801 results | Jun 24, 2004 | Jun 3, 2026 |
| Barium 1010 | Inorganic Chemical | 32 of 32 results | Nov 3, 2003 | Apr 22, 2025 |
| Fluoride 1025 | Inorganic Chemical | 19 of 36 results | Nov 3, 2003 | Apr 22, 2025 |
| TTHM 2950 | Organic Chemical | 8 of 17 results | Sep 17, 2007 | Nov 18, 2024 |
| Chromium 1020 | Inorganic Chemical | 7 of 32 results | Nov 3, 2003 | Apr 22, 2025 |
| Sodium 1052 | Inorganic Chemical | 7 of 7 results | Nov 6, 2009 | Apr 3, 2023 |
| Sulfate 1055 | Inorganic Chemical | 7 of 8 results | Nov 3, 2003 | Sep 1, 2021 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 6 of 16 results | Aug 3, 2010 | Nov 18, 2024 |
| Chloroform 2941 | Organic Chemical | 6 of 12 results | Sep 17, 2007 | Nov 18, 2024 |
| Nickel 1036 | Inorganic Chemical | 5 of 32 results | Nov 3, 2003 | Apr 22, 2025 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 5 of 10 results | Dec 6, 2011 | Jul 10, 2012 |
| Calcium 1016 | Inorganic Chemical | 4 of 4 results | Nov 6, 2009 | Sep 1, 2021 |
| Alkalinity, Total 1927 | Water Quality | 4 of 4 results | Nov 6, 2009 | Sep 1, 2021 |
| Chloride 1017 | Inorganic Chemical | 3 of 4 results | Sep 1, 2021 | Sep 1, 2021 |
| Conductivity @ 25 C Umhos/CM 1064 | Water Quality | 3 of 3 results | Sep 1, 2021 | Sep 1, 2021 |
| Color 1905 | Water Quality | 3 of 4 results | Nov 6, 2009 | Sep 1, 2021 |
| Dichloroacetic Acid 2451 | Organic Chemical | 2 of 11 results | Aug 29, 2016 | Nov 18, 2024 |
| Carbon Tetrachloride 2982 | Organic Chemical | 2 of 40 results | Oct 24, 2022 | Oct 24, 2022 |
| Trichloroacetic Acid 2452 | Organic Chemical | 1 of 11 results | Nov 18, 2024 | Nov 18, 2024 |
| Bromodichloromethane 2943 | Organic Chemical | 1 of 12 results | Nov 18, 2024 | Nov 18, 2024 |
| Dibromochloromethane 2944 | Organic Chemical | 1 of 12 results | Nov 18, 2024 | Nov 18, 2024 |
| Cyanide 1024 | Inorganic Chemical | 1 of 38 results | Aug 22, 2022 | Aug 22, 2022 |
| Monobromoacetic Acid 2453 | Organic Chemical | 1 of 11 results | Oct 26, 2020 | Oct 26, 2020 |
| Iron 1028 | Inorganic Chemical | 1 of 1 result | Nov 6, 2009 | Nov 6, 2009 |
| Magnesium 1031 | Inorganic Chemical | 1 of 1 result | Nov 6, 2009 | Nov 6, 2009 |
| Manganese 1032 | Inorganic Chemical | 1 of 1 result | Nov 6, 2009 | Nov 6, 2009 |
| Potassium 1042 | Inorganic Chemical | 1 of 1 result | Nov 6, 2009 | Nov 6, 2009 |
| Residue, Total, Filterable 1057 | Water Quality | 1 of 1 result | Nov 6, 2009 | Nov 6, 2009 |
| Alkalinity, Caco3 Stability 1067 | Water Quality | 1 of 1 result | Nov 6, 2009 | Nov 6, 2009 |
| Carbon Dioxide 1901 | Water Quality | 1 of 1 result | Nov 6, 2009 | Nov 6, 2009 |
| Hardness, Total (As Caco3) 1915 | Water Quality | 1 of 1 result | Nov 6, 2009 | Nov 6, 2009 |
| Iron, Field Result FEFD | Inorganic Chemical | 1 of 1 result | Nov 6, 2009 | Nov 6, 2009 |
| Calculated Sodium NACA | Water Quality | 1 of 1 result | Nov 6, 2009 | Nov 6, 2009 |
| PH, Field Result PHFD | Water Quality | 1 of 1 result | Nov 6, 2009 | Nov 6, 2009 |
No date range is applied: this list draws on every sample on record. Show the last two years only.
The most recent samples, result by result
The table below lists 331–340 of 1,028 samples, newest first — collected May 19, 2021 to September 14, 2021. The summary above covers all 1,028.
38 results from the 10 samples listed here: 33 detected, 5 not detected. Across the whole record it is 1,445 of 3,258. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.
We withheld the location of 6 sampling points below. The location on record identifies a private home, and we do not publish those. That is our decision, not the agency’s. The sampling point, its type and every result taken there are published unchanged.
| Result | Analyte | Monitoring period |
|---|---|---|
|
||
| 0.0029 mg/l , sample collected Sep 14, 2021 08:30, sampling point WL004 | Copper, Free 1022 EPA method 200.8 | Not recorded |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2021 08:30, sampling point WL004 | Lead 1030 EPA method 200.8 | Not recorded |
|
||
| 5.7 mg/l , sample collected Sep 1, 2021 10:58, sampling point WL006 | Calcium 1016 EPA method 200.7 | Not recorded |
| 1.81 mg/l , sample collected Sep 1, 2021 10:58, sampling point WL006 | Chloride 1017 EPA method 300.0 | Not recorded |
| 0.0935 mg/l , sample collected Sep 1, 2021 10:58, sampling point WL006 | Fluoride 1025 EPA method 300.0 | Not recorded |
| 15.2 mg/l , sample collected Sep 1, 2021 10:58, sampling point WL006 | Sodium 1052 EPA method 200.7 | Not recorded |
| 9.8 mg/l , sample collected Sep 1, 2021 10:58, sampling point WL006 | Sulfate 1055 EPA method 300.0 | Not recorded |
| 122 umho/cm , sample collected Sep 1, 2021 10:58, sampling point WL006 | Conductivity @ 25 C Umhos/CM 1064 EPA method 2510B | Not recorded |
| 30 cu , sample collected Sep 1, 2021 10:58, sampling point WL006 | Color 1905 EPA method 2120B | Not recorded |
| 47 mg/l , sample collected Sep 1, 2021 10:58, sampling point WL006 | Alkalinity, Total 1927 EPA method 2320B | Not recorded |
|
||
| 6.38 mg/l , sample collected Sep 1, 2021 10:45, sampling point WL005 | Calcium 1016 EPA method 200.7 | Not recorded |
| 1.86 mg/l , sample collected Sep 1, 2021 10:45, sampling point WL005 | Chloride 1017 EPA method 300.0 | Not recorded |
| 0.107 mg/l , sample collected Sep 1, 2021 10:45, sampling point WL005 | Fluoride 1025 EPA method 300.0 | Not recorded |
| 17.7 mg/l , sample collected Sep 1, 2021 10:45, sampling point WL005 | Sodium 1052 EPA method 200.7 | Not recorded |
| 8.91 mg/l , sample collected Sep 1, 2021 10:45, sampling point WL005 | Sulfate 1055 EPA method 300.0 | Not recorded |
| 123 umho/cm , sample collected Sep 1, 2021 10:45, sampling point WL005 | Conductivity @ 25 C Umhos/CM 1064 EPA method 2510B | Not recorded |
| 20 cu , sample collected Sep 1, 2021 10:45, sampling point WL005 | Color 1905 EPA method 2120B | Not recorded |
| 49.1 mg/l , sample collected Sep 1, 2021 10:45, sampling point WL005 | Alkalinity, Total 1927 EPA method 2320B | Not recorded |
|
||
| 4.38 mg/l , sample collected Sep 1, 2021 11:10, sampling point WL004 | Calcium 1016 EPA method 200.7 | Not recorded |
| 1.79 mg/l , sample collected Sep 1, 2021 11:10, sampling point WL004 | Chloride 1017 EPA method 300.0 | Not recorded |
| 0.0926 mg/l , sample collected Sep 1, 2021 11:10, sampling point WL004 | Fluoride 1025 EPA method 300.0 | Not recorded |
| 10.6 mg/l , sample collected Sep 1, 2021 11:10, sampling point WL004 | Sodium 1052 EPA method 200.7 | Not recorded |
| 9.76 mg/l , sample collected Sep 1, 2021 11:10, sampling point WL004 | Sulfate 1055 EPA method 300.0 | Not recorded |
| 98 umho/cm , sample collected Sep 1, 2021 11:10, sampling point WL004 | Conductivity @ 25 C Umhos/CM 1064 EPA method 2510B | Not recorded |
| Not detected below 10 cu Minimum Reporting Level , sample collected Sep 1, 2021 11:10, sampling point WL004 | Color 1905 EPA method 2120B | Not recorded |
| 34.6 mg/l , sample collected Sep 1, 2021 11:10, sampling point WL004 | Alkalinity, Total 1927 EPA method 2320B | Not recorded |
|
||
| 1.05 mg/l , sample collected May 20, 2021 06:00, sampling point LC0009 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2021 – Jun 30, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 20, 2021 06:00, sampling point LC0009 | Lead 1030 EPA method 200.8 | Jan 1, 2021 – Jun 30, 2021 |
|
||
| 1.21 mg/l , sample collected May 20, 2021 06:00, sampling point LC0056 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2021 – Jun 30, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 20, 2021 06:00, sampling point LC0056 | Lead 1030 EPA method 200.8 | Jan 1, 2021 – Jun 30, 2021 |
|
||
| 2.55 mg/l , sample collected May 19, 2021 04:00, sampling point LC0032 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2021 – Jun 30, 2021 |
| 2.9 ug/l , sample collected May 19, 2021 04:00, sampling point LC0032 | Lead 1030 EPA method 200.8 | Jan 1, 2021 – Jun 30, 2021 |
|
||
| 0.32 mg/l , sample collected May 19, 2021 05:45, sampling point LC0010 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2021 – Jun 30, 2021 |
| 2.7 ug/l , sample collected May 19, 2021 05:45, sampling point LC0010 | Lead 1030 EPA method 200.8 | Jan 1, 2021 – Jun 30, 2021 |
|
||
| 0.0228 mg/l , sample collected May 19, 2021 10:00, sampling point LC0029 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2021 – Jun 30, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 19, 2021 10:00, sampling point LC0029 | Lead 1030 EPA method 200.8 | Jan 1, 2021 – Jun 30, 2021 |
|
||
| 1.14 mg/l , sample collected May 19, 2021 06:00, sampling point LC0033 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2021 – Jun 30, 2021 |
| 0.5 ug/l , sample collected May 19, 2021 06:00, sampling point LC0033 | Lead 1030 EPA method 200.8 | Jan 1, 2021 – Jun 30, 2021 |
-
- Collected
- Sep 14, 2021 08:30
- Sampling point
- WL004 Well WL004
- Sample type
- Routine
- Lab sample
- PB-210915-012
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0029 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Sep 1, 2021 10:58
- Sampling point
- WL006 Well WL006
- Sample type
- Routine
- Lab sample
- 7PC-210902-003
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Calcium 1016 EPA method 200.7
- Result
- 5.7 mg/l
-
Chloride 1017 EPA method 300.0
- Result
- 1.81 mg/l
-
Fluoride 1025 EPA method 300.0
- Result
- 0.0935 mg/l
-
Sodium 1052 EPA method 200.7
- Result
- 15.2 mg/l
-
Sulfate 1055 EPA method 300.0
- Result
- 9.8 mg/l
-
Conductivity @ 25 C Umhos/CM 1064 EPA method 2510B
- Result
- 122 umho/cm
-
Color 1905 EPA method 2120B
- Result
- 30 cu
-
Alkalinity, Total 1927 EPA method 2320B
- Result
- 47 mg/l
-
- Collected
- Sep 1, 2021 10:45
- Sampling point
- WL005 Well WL005
- Sample type
- Routine
- Lab sample
- 7PC-210902-002
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Calcium 1016 EPA method 200.7
- Result
- 6.38 mg/l
-
Chloride 1017 EPA method 300.0
- Result
- 1.86 mg/l
-
Fluoride 1025 EPA method 300.0
- Result
- 0.107 mg/l
-
Sodium 1052 EPA method 200.7
- Result
- 17.7 mg/l
-
Sulfate 1055 EPA method 300.0
- Result
- 8.91 mg/l
-
Conductivity @ 25 C Umhos/CM 1064 EPA method 2510B
- Result
- 123 umho/cm
-
Color 1905 EPA method 2120B
- Result
- 20 cu
-
Alkalinity, Total 1927 EPA method 2320B
- Result
- 49.1 mg/l
-
- Collected
- Sep 1, 2021 11:10
- Sampling point
- WL004 Well WL004
- Sample type
- Routine
- Lab sample
- 7PC-210902-001
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Calcium 1016 EPA method 200.7
- Result
- 4.38 mg/l
-
Chloride 1017 EPA method 300.0
- Result
- 1.79 mg/l
-
Fluoride 1025 EPA method 300.0
- Result
- 0.0926 mg/l
-
Sodium 1052 EPA method 200.7
- Result
- 10.6 mg/l
-
Sulfate 1055 EPA method 300.0
- Result
- 9.76 mg/l
-
Conductivity @ 25 C Umhos/CM 1064 EPA method 2510B
- Result
- 98 umho/cm
-
Color 1905 EPA method 2120B
- Result
- Not detected below 10 cu Minimum Reporting Level
-
Alkalinity, Total 1927 EPA method 2320B
- Result
- 34.6 mg/l
-
- Collected
- May 20, 2021 06:00
- Sampling point
- LC0009 Location withheld
- Sample type
- Routine
- Lab sample
- PB-210525-021
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Jun 30, 2021
-
Copper, Free 1022 EPA method 200.8
- Result
- 1.05 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- May 20, 2021 06:00
- Sampling point
- LC0056 Location withheld
- Sample type
- Routine
- Lab sample
- PB-210525-028
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Jun 30, 2021
-
Copper, Free 1022 EPA method 200.8
- Result
- 1.21 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- May 19, 2021 04:00
- Sampling point
- LC0032 Location withheld
- Sample type
- Routine
- Lab sample
- PB-210525-029
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Jun 30, 2021
-
Copper, Free 1022 EPA method 200.8
- Result
- 2.55 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 2.9 ug/l
-
- Collected
- May 19, 2021 05:45
- Sampling point
- LC0010 Location withheld
- Sample type
- Routine
- Lab sample
- PB-210525-023
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Jun 30, 2021
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.32 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 2.7 ug/l
-
- Collected
- May 19, 2021 10:00
- Sampling point
- LC0029 Location withheld
- Sample type
- Routine
- Lab sample
- PB-210525-026
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Jun 30, 2021
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0228 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- May 19, 2021 06:00
- Sampling point
- LC0033 Location withheld
- Sample type
- Routine
- Lab sample
- PB-210525-027
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Jun 30, 2021
-
Copper, Free 1022 EPA method 200.8
- Result
- 1.14 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.5 ug/l
Routine (10).