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 351–360 of 1,028 samples, newest first — collected October 21, 2020 to May 18, 2021. The summary above covers all 1,028.
28 results from the 10 samples listed here: 13 detected, 15 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.
Units in this table
Lead is recorded on this page in ug/l and mg/l. 1 mg/l = 1,000 ug/l.
We withheld the location of 4 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 |
|---|---|---|
|
||
| 1.02 mg/l , sample collected May 18, 2021 05:15, sampling point LC0008 | 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 18, 2021 05:15, sampling point LC0008 | Lead 1030 EPA method 200.8 | Jan 1, 2021 – Jun 30, 2021 |
|
||
| 1.94 mg/l , sample collected May 18, 2021 05:54, sampling point LC0002 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2021 – Jun 30, 2021 |
| 1.3 ug/l , sample collected May 18, 2021 05:54, sampling point LC0002 | Lead 1030 EPA method 200.8 | Jan 1, 2021 – Jun 30, 2021 |
|
||
| 0.905 mg/l , sample collected May 18, 2021 07:15, sampling point LC0034 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2021 – Jun 30, 2021 |
| 1.1 ug/l , sample collected May 18, 2021 07:15, sampling point LC0034 | Lead 1030 EPA method 200.8 | Jan 1, 2021 – Jun 30, 2021 |
|
||
| 0.0936 mg/l , sample collected May 18, 2021 06:50, sampling point LC0057 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2021 – Jun 30, 2021 |
| 25.1 ug/l , sample collected May 18, 2021 06:50, sampling point LC0057 | Lead 1030 EPA method 200.8 | Jan 1, 2021 – Jun 30, 2021 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected May 3, 2021 12:50, sampling point TF104 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2021 – Dec 31, 2021 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected May 3, 2021 12:50, sampling point TF104 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2021 – Dec 31, 2021 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected May 3, 2021 12:50, sampling point TF104 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2021 – Dec 31, 2021 |
|
||
| 0.0035 mg/l , sample collected Mar 1, 2021 11:01, sampling point TF104 | Copper, Free 1022 EPA method 200.8 | Not recorded |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 1, 2021 11:01, sampling point TF104 | Lead 1030 EPA method 200.8 | Not recorded |
|
||
| Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Oct 26, 2020 12:15, sampling point MRT000 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Oct 26, 2020 12:15, sampling point MRT000 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Oct 26, 2020 12:15, sampling point MRT000 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| 0.008 mg/l , sample collected Oct 26, 2020 12:15, sampling point MRT000 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Oct 26, 2020 12:15, sampling point MRT000 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 0.008 mg/l , sample collected Oct 26, 2020 12:15, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 | Jan 1, 2020 – Dec 31, 2020 |
|
||
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 26, 2020 12:15, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 26, 2020 12:15, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 26, 2020 12:15, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 26, 2020 12:15, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| Not detected below 4 ug/l Minimum Reporting Level , sample collected Oct 26, 2020 12:15, sampling point MRT000 | TTHM 2950 | Jan 1, 2020 – Dec 31, 2020 |
|
||
| 1.0554 mg/l , sample collected Oct 21, 2020 06:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jul 1, 2020 – Dec 31, 2020 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 21, 2020 06:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jul 1, 2020 – Dec 31, 2020 |
|
||
| 0.8191 mg/l , sample collected Oct 21, 2020 05:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jul 1, 2020 – Dec 31, 2020 |
| 0.0006 mg/l , sample collected Oct 21, 2020 05:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jul 1, 2020 – Dec 31, 2020 |
-
- Collected
- May 18, 2021 05:15
- Sampling point
- LC0008 Location withheld
- Sample type
- Routine
- Lab sample
- PB-210525-034
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Jun 30, 2021
-
Copper, Free 1022 EPA method 200.8
- Result
- 1.02 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- May 18, 2021 05:54
- Sampling point
- LC0002 Location withheld
- Sample type
- Routine
- Lab sample
- PB-210525-036
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Jun 30, 2021
-
Copper, Free 1022 EPA method 200.8
- Result
- 1.94 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 1.3 ug/l
-
- Collected
- May 18, 2021 07:15
- Sampling point
- LC0034 Location withheld
- Sample type
- Routine
- Lab sample
- PB-210525-032
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Jun 30, 2021
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.905 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 1.1 ug/l
-
- Collected
- May 18, 2021 06:50
- Sampling point
- LC0057 Location withheld
- Sample type
- Routine
- Lab sample
- PB-210525-035
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Jun 30, 2021
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0936 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 25.1 ug/l
-
- Collected
- May 3, 2021 12:50
- Sampling point
- TF104 Treatment Plant TF104
- Sample type
- Routine
- Lab sample
- NI-210504-009
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Dec 31, 2021
-
Nitrate-Nitrite 1038 EPA method QC10107041C
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method QC10107041C
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method QC10107041C
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- Mar 1, 2021 11:01
- Sampling point
- TF104 Treatment Plant TF104
- Sample type
- Routine
- Lab sample
- PB-210302-001
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0035 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Oct 26, 2020 12:15
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 201027-008HA
- Laboratory
- MSDH Lab
-
Monochloroacetic Acid 2450 EPA method 552.2
- Result
- Not detected below 0.002 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dichloroacetic Acid 2451 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Monobromoacetic Acid 2453 EPA method 552.2
- Result
- 0.008 mg/l
- Monitoring period
- Not recorded
-
Dibromoacetic Acid 2454 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456
- Result
- 0.008 mg/l
- Monitoring period
- Jan 1, 2020 – Dec 31, 2020
-
- Collected
- Oct 26, 2020 12:15
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 201027-009TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
TTHM 2950
- Result
- Not detected below 4 ug/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2020 – Dec 31, 2020
-
- Collected
- Oct 21, 2020 06:30
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 201022-020PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2020 – Dec 31, 2020
-
Copper, Free 1022 EPA method 200.8
- Result
- 1.0554 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Oct 21, 2020 05:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 201022-018PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2020 – Dec 31, 2020
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.8191 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0006 mg/l
Routine (10).