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
MS0140011 , Rena Lara Water Association
26 of the 57 analytes this system has been tested for have been detected at least once, across 247 samples on record.
The other 31 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 247 samples on record, detections range from November 4, 1993 to September 17, 2025. 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 | 89 of 95 results | Nov 4, 1993 | Sep 17, 2025 |
| Lead 1030 | Inorganic Chemical | 80 of 95 results | Nov 4, 1993 | Sep 17, 2025 |
| Barium 1010 | Inorganic Chemical | 24 of 24 results | May 14, 2002 | Feb 3, 2025 |
| Fluoride 1025 | Inorganic Chemical | 22 of 22 results | May 14, 2002 | Feb 3, 2025 |
| Chromium 1020 | Inorganic Chemical | 21 of 24 results | May 14, 2002 | Feb 3, 2025 |
| Arsenic 1005 | Inorganic Chemical | 19 of 24 results | Mar 24, 2004 | Feb 3, 2025 |
| Selenium 1045 | Inorganic Chemical | 18 of 24 results | May 14, 2002 | Feb 3, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 16 of 17 results | Jul 23, 2007 | Mar 18, 2025 |
| TTHM 2950 | Organic Chemical | 16 of 16 results | May 17, 2004 | Mar 18, 2025 |
| Dibromoacetic Acid 2454 | Organic Chemical | 8 of 8 results | Aug 18, 2008 | Aug 3, 2020 |
| Chloroform 2941 | Organic Chemical | 8 of 8 results | Jul 23, 2007 | Jun 26, 2018 |
| Bromodichloromethane 2943 | Organic Chemical | 8 of 8 results | Jul 23, 2007 | Jun 26, 2018 |
| Dichloroacetic Acid 2451 | Organic Chemical | 7 of 8 results | Aug 18, 2008 | Aug 3, 2020 |
| Trichloroacetic Acid 2452 | Organic Chemical | 7 of 8 results | Aug 18, 2008 | Aug 3, 2020 |
| Bromoform 2942 | Organic Chemical | 7 of 8 results | Jul 23, 2007 | Jun 26, 2018 |
| Dibromochloromethane 2944 | Organic Chemical | 7 of 8 results | Jul 23, 2007 | Jun 26, 2018 |
| Nickel 1036 | Inorganic Chemical | 7 of 24 results | Mar 21, 2005 | Apr 21, 2014 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 5 of 10 results | Dec 7, 2011 | Jul 11, 2012 |
| Combined Radium (-226 & -228) 4010 | Radionuclide | 5 of 10 results | Dec 7, 2011 | Jul 11, 2012 |
| Radium-226 4020 | Radionuclide | 5 of 10 results | Dec 7, 2011 | Jul 11, 2012 |
| Thallium, Total 1085 | Inorganic Chemical | 3 of 24 results | May 14, 2002 | Apr 22, 2020 |
| Monobromoacetic Acid 2453 | Organic Chemical | 2 of 8 results | Aug 20, 2014 | Aug 3, 2020 |
| Sodium 1052 | Inorganic Chemical | 2 of 2 results | Oct 28, 2019 | Oct 28, 2019 |
| Monochloroacetic Acid 2450 | Organic Chemical | 2 of 8 results | Aug 20, 2014 | Nov 8, 2017 |
| Cyanide 1024 | Inorganic Chemical | 1 of 20 results | Aug 8, 2011 | Aug 8, 2011 |
| Mercury 1035 | Inorganic Chemical | 1 of 24 results | Sep 3, 2003 | Sep 3, 2003 |
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 221–230 of 247 samples, newest first — collected May 17, 1994 to June 20, 1996. The summary above covers all 247.
20 results from the 10 samples listed here: 18 detected, 2 not detected. Across the whole record it is 390 of 1,042. 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 0.02 mg/l Method Detection Limit , sample collected Jun 20, 1996, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.002 mg/l , sample collected Jun 20, 1996, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.061 mg/l , sample collected Jun 20, 1996, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.002 mg/l , sample collected Jun 20, 1996, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| Not detected below 0.02 mg/l Method Detection Limit , sample collected Jun 20, 1996, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.003 mg/l , sample collected Jun 20, 1996, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.598 mg/l , sample collected Jun 13, 1995, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.002 mg/l , sample collected Jun 13, 1995, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.388 mg/l , sample collected Jun 13, 1995, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.002 mg/l , sample collected Jun 13, 1995, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.904 mg/l , sample collected Jun 13, 1995, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.001 mg/l , sample collected Jun 13, 1995, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.705 mg/l , sample collected Jun 13, 1995, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.001 mg/l , sample collected Jun 13, 1995, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.176 mg/l , sample collected Jun 13, 1995, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.002 mg/l , sample collected Jun 13, 1995, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.074 mg/l , sample collected May 17, 1994, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.002 mg/l , sample collected May 17, 1994, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 1.191 mg/l , sample collected May 17, 1994, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.01 mg/l , sample collected May 17, 1994, sampling point DS000 | Lead 1030 | Not recorded |
-
- Collected
- Jun 20, 1996
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 960621-070L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- Not detected below 0.02 mg/l Method Detection Limit
-
Lead 1030
- Result
- 0.002 mg/l
-
- Collected
- Jun 20, 1996
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 960621-069L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.061 mg/l
-
Lead 1030
- Result
- 0.002 mg/l
-
- Collected
- Jun 20, 1996
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 960621-068L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- Not detected below 0.02 mg/l Method Detection Limit
-
Lead 1030
- Result
- 0.003 mg/l
-
- Collected
- Jun 13, 1995
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 950614-266L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.598 mg/l
-
Lead 1030
- Result
- 0.002 mg/l
-
- Collected
- Jun 13, 1995
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 950614-265L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.388 mg/l
-
Lead 1030
- Result
- 0.002 mg/l
-
- Collected
- Jun 13, 1995
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 950614-264L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.904 mg/l
-
Lead 1030
- Result
- 0.001 mg/l
-
- Collected
- Jun 13, 1995
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 950614-263L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.705 mg/l
-
Lead 1030
- Result
- 0.001 mg/l
-
- Collected
- Jun 13, 1995
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 950614-262L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.176 mg/l
-
Lead 1030
- Result
- 0.002 mg/l
-
- Collected
- May 17, 1994
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 940518-224L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.074 mg/l
-
Lead 1030
- Result
- 0.002 mg/l
-
- Collected
- May 17, 1994
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 940518-223L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 1.191 mg/l
-
Lead 1030
- Result
- 0.01 mg/l
Routine (10).