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
MS0810010 , Tri-Lakes Water Assn-East
20 of the 57 analytes this system has been tested for have been detected at least once, across 135 samples on record.
The other 37 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 135 samples on record, detections range from November 5, 2003 to September 2, 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 | 60 of 60 results | Jul 12, 2007 | Sep 2, 2025 |
| Lead 1030 | Inorganic Chemical | 10 of 60 results | Jul 12, 2007 | Sep 2, 2025 |
| Barium 1010 | Inorganic Chemical | 10 of 10 results | Nov 5, 2003 | Apr 8, 2025 |
| TTHM 2950 | Organic Chemical | 8 of 8 results | Sep 13, 2004 | Mar 4, 2025 |
| Chromium 1020 | Inorganic Chemical | 7 of 10 results | Apr 5, 2004 | Apr 8, 2025 |
| Fluoride 1025 | Inorganic Chemical | 5 of 10 results | May 2, 2005 | Apr 8, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 5 of 7 results | Aug 3, 2010 | Mar 4, 2025 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 5 of 5 results | Dec 12, 2011 | Jul 19, 2012 |
| Combined Radium (-226 & -228) 4010 | Radionuclide | 5 of 5 results | Dec 12, 2011 | Jul 19, 2012 |
| Radium-226 4020 | Radionuclide | 5 of 5 results | Dec 12, 2011 | Jul 19, 2012 |
| Chloroform 2941 | Organic Chemical | 4 of 4 results | Sep 18, 2007 | Sep 13, 2016 |
| Bromodichloromethane 2943 | Organic Chemical | 4 of 4 results | Sep 18, 2007 | Sep 13, 2016 |
| Nickel 1036 | Inorganic Chemical | 3 of 10 results | May 2, 2005 | Apr 8, 2025 |
| Dichloroacetic Acid 2451 | Organic Chemical | 3 of 3 results | Aug 3, 2010 | Sep 13, 2016 |
| Trichloroacetic Acid 2452 | Organic Chemical | 3 of 3 results | Aug 3, 2010 | Sep 13, 2016 |
| Dibromochloromethane 2944 | Organic Chemical | 3 of 4 results | Aug 3, 2010 | Sep 13, 2016 |
| Sodium 1052 | Inorganic Chemical | 2 of 2 results | Sep 23, 2019 | Mar 21, 2023 |
| Sulfate 1055 | Inorganic Chemical | 2 of 2 results | Nov 5, 2003 | Apr 5, 2004 |
| Dibromoacetic Acid 2454 | Organic Chemical | 1 of 3 results | Sep 23, 2013 | Sep 23, 2013 |
| Arsenic 1005 | Inorganic Chemical | 1 of 10 results | May 10, 2010 | May 10, 2010 |
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 71–80 of 135 samples, newest first — collected September 16, 2014 to July 18, 2016. The summary above covers all 135.
22 results from the 10 samples listed here: 8 detected, 14 not detected. Across the whole record it is 146 of 525. 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 0.015 mg/l Minimum Reporting Level , sample collected Jul 18, 2016 04:00, sampling point TF101 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2014 – Dec 31, 2016 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jun 8, 2016 13:00, sampling point TF101 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2016 – Dec 31, 2016 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jun 8, 2016 13:00, sampling point TF101 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2016 – Dec 31, 2016 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jun 8, 2016 13:00, sampling point TF101 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2016 – Dec 31, 2016 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jun 1, 2015 13:50, sampling point TF101 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2015 – Dec 31, 2015 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jun 1, 2015 13:50, sampling point TF101 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2015 – Dec 31, 2015 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jun 1, 2015 13:50, sampling point TF101 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2015 – Dec 31, 2015 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Nov 3, 2014 15:46, sampling point TF101 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2014 – Dec 31, 2014 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Nov 3, 2014 15:46, sampling point TF101 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2014 – Dec 31, 2014 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Nov 3, 2014 15:46, sampling point TF101 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2014 – Dec 31, 2014 |
|
||
| 0.1308 mg/l , sample collected Sep 16, 2014 06:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 16, 2014 06:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
|
||
| 0.3202 mg/l , sample collected Sep 16, 2014 06:45, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 16, 2014 06:45, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
|
||
| 0.351 mg/l , sample collected Sep 16, 2014 05:45, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 16, 2014 05:45, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
|
||
| 0.2525 mg/l , sample collected Sep 16, 2014 06:15, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
| 0.0007 mg/l , sample collected Sep 16, 2014 06:15, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
|
||
| 0.317 mg/l , sample collected Sep 16, 2014 05:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 16, 2014 05:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
|
||
| 0.2663 mg/l , sample collected Sep 16, 2014 07:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
| 0.0005 mg/l , sample collected Sep 16, 2014 07:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
-
- Collected
- Jul 18, 2016 04:00
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 160719-012CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2014 – Dec 31, 2016
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- Jun 8, 2016 13:00
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 160609-010NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2016 – Dec 31, 2016
-
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
- Jun 1, 2015 13:50
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 150602-016NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2015 – Dec 31, 2015
-
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
- Nov 3, 2014 15:46
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 141104-121NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2014 – Dec 31, 2014
-
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
- Sep 16, 2014 06:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140917-032PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1308 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Sep 16, 2014 06:45
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140917-031PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.3202 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Sep 16, 2014 05:45
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140917-030PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.351 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Sep 16, 2014 06:15
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140917-029PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.2525 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0007 mg/l
-
- Collected
- Sep 16, 2014 05:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140917-028PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.317 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Sep 16, 2014 07:30
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140917-027PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.2663 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0005 mg/l
Routine (10).