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 1,031 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 1,031 samples on record, detections range from November 3, 2003 to August 6, 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 | 35 of 35 results | Nov 3, 2003 | Aug 6, 2026 |
| Fluoride 1025 | Inorganic Chemical | 22 of 39 results | Nov 3, 2003 | Aug 6, 2026 |
| Sodium 1052 | Inorganic Chemical | 10 of 10 results | Nov 6, 2009 | Aug 6, 2026 |
| TTHM 2950 | Organic Chemical | 8 of 17 results | Sep 17, 2007 | Nov 18, 2024 |
| Chromium 1020 | Inorganic Chemical | 7 of 35 results | Nov 3, 2003 | Apr 22, 2025 |
| 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 42 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 40 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 791–800 of 1,031 samples, newest first — collected October 25, 2011 to February 6, 2012. The summary above covers all 1,031.
22 results from the 10 samples listed here: 11 detected, 11 not detected. Across the whole record it is 1,454 of 3,338. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.
| Result | Analyte | Monitoring period |
|---|---|---|
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 6, 2012 12:45, sampling point TF104 | Combined Uranium 4006 EPA method 200.8 | Jan 1, 2012 – Mar 31, 2012 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 6, 2012 12:55, sampling point TF103 | Combined Uranium 4006 EPA method 200.8 | Jan 1, 2012 – Mar 31, 2012 |
|
||
| Not detected below 0.32 pci/l Minimum Reporting Level , sample collected Dec 7, 2011 01:20, sampling point TF103 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.64 pci/l Minimum Reporting Level , sample collected Dec 7, 2011 01:20, sampling point TF103 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.555 pci/l Minimum Reporting Level , sample collected Dec 7, 2011 01:20, sampling point TF103 | Radium-226 4020 EPA method 903.1 | Oct 1, 2011 – Dec 31, 2011 |
| Not detected below 0.64 pci/l Minimum Reporting Level , sample collected Dec 7, 2011 01:20, sampling point TF103 | Radium-228 4030 EPA method 904.0 | Oct 1, 2011 – Dec 31, 2011 |
|
||
| 0.4 pci/l , sample collected Dec 6, 2011 12:55, sampling point TF104 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.66 pci/l Minimum Reporting Level , sample collected Dec 6, 2011 12:55, sampling point TF104 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.571 pci/l Minimum Reporting Level , sample collected Dec 6, 2011 12:55, sampling point TF104 | Radium-226 4020 EPA method 903.1 | Oct 1, 2011 – Dec 31, 2011 |
| Not detected below 0.66 pci/l Minimum Reporting Level , sample collected Dec 6, 2011 12:55, sampling point TF104 | Radium-228 4030 EPA method 904.0 | Oct 1, 2011 – Dec 31, 2011 |
|
||
| 1.4494 mg/l , sample collected Oct 25, 2011, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jul 1, 2011 – Dec 31, 2011 |
| 0.0038 mg/l , sample collected Oct 25, 2011, sampling point DS000 | Lead 1030 EPA method 200.8 | Jul 1, 2011 – Dec 31, 2011 |
|
||
| 1.5285 mg/l , sample collected Oct 25, 2011, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jul 1, 2011 – Dec 31, 2011 |
| 0.0019 mg/l , sample collected Oct 25, 2011, sampling point DS000 | Lead 1030 EPA method 200.8 | Jul 1, 2011 – Dec 31, 2011 |
|
||
| 0.1632 mg/l , sample collected Oct 25, 2011, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jul 1, 2011 – Dec 31, 2011 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 25, 2011, sampling point DS000 | Lead 1030 EPA method 200.8 | Jul 1, 2011 – Dec 31, 2011 |
|
||
| 1.2651 mg/l , sample collected Oct 25, 2011, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jul 1, 2011 – Dec 31, 2011 |
| 0.0015 mg/l , sample collected Oct 25, 2011, sampling point DS000 | Lead 1030 EPA method 200.8 | Jul 1, 2011 – Dec 31, 2011 |
|
||
| 0.1704 mg/l , sample collected Oct 25, 2011, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jul 1, 2011 – Dec 31, 2011 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 25, 2011, sampling point DS000 | Lead 1030 EPA method 200.8 | Jul 1, 2011 – Dec 31, 2011 |
|
||
| 0.3824 mg/l , sample collected Oct 25, 2011, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jul 1, 2011 – Dec 31, 2011 |
| 0.0009 mg/l , sample collected Oct 25, 2011, sampling point DS000 | Lead 1030 EPA method 200.8 | Jul 1, 2011 – Dec 31, 2011 |
-
- Collected
- Feb 6, 2012 12:45
- Sampling point
- TF104 Treatment Plant TF104
- Sample type
- Routine
- Lab sample
- 120207-063RU
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Mar 31, 2012
-
Combined Uranium 4006 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Feb 6, 2012 12:55
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- 120207-062RU
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Mar 31, 2012
-
Combined Uranium 4006 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Dec 7, 2011 01:20
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- 111207-071
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- Not detected below 0.32 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.64 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.555 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2011 – Dec 31, 2011
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.64 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2011 – Dec 31, 2011
-
- Collected
- Dec 6, 2011 12:55
- Sampling point
- TF104 Treatment Plant TF104
- Sample type
- Routine
- Lab sample
- 111207-072
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- 0.4 pci/l
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.66 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.571 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2011 – Dec 31, 2011
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.66 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2011 – Dec 31, 2011
-
- Collected
- Oct 25, 2011
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 111027-035PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2011 – Dec 31, 2011
-
Copper, Free 1022 EPA method 200.8
- Result
- 1.4494 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0038 mg/l
-
- Collected
- Oct 25, 2011
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 111027-034PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2011 – Dec 31, 2011
-
Copper, Free 1022 EPA method 200.8
- Result
- 1.5285 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0019 mg/l
-
- Collected
- Oct 25, 2011
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 111027-033PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2011 – Dec 31, 2011
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1632 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Oct 25, 2011
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 111027-032PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2011 – Dec 31, 2011
-
Copper, Free 1022 EPA method 200.8
- Result
- 1.2651 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0015 mg/l
-
- Collected
- Oct 25, 2011
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 111027-031PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2011 – Dec 31, 2011
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1704 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Oct 25, 2011
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 111027-030PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2011 – Dec 31, 2011
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.3824 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0009 mg/l
Routine (10).