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
MS0810033 , Tri-Lakes Water Assn-East
18 of the 57 analytes this system has been tested for have been detected at least once, across 130 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 130 samples on record, detections range from November 5, 2003 to April 8, 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 | 55 of 55 results | Jul 12, 2007 | Aug 15, 2023 |
| Lead 1030 | Inorganic Chemical | 29 of 55 results | Jul 12, 2007 | Aug 15, 2023 |
| Barium 1010 | Inorganic Chemical | 10 of 10 results | Nov 5, 2003 | Apr 8, 2025 |
| TTHM 2950 | Organic Chemical | 7 of 7 results | Sep 13, 2004 | Mar 29, 2023 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 6 of 7 results | Nov 28, 2005 | Mar 29, 2023 |
| Nickel 1036 | Inorganic Chemical | 5 of 10 results | Apr 5, 2004 | Apr 8, 2025 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 5 of 5 results | Dec 12, 2011 | Jul 19, 2012 |
| Chromium 1020 | Inorganic Chemical | 4 of 10 results | May 2, 2005 | Apr 8, 2025 |
| Fluoride 1025 | Inorganic Chemical | 4 of 10 results | May 2, 2005 | Apr 8, 2025 |
| Chloroform 2941 | Organic Chemical | 4 of 4 results | Oct 17, 2006 | Aug 14, 2017 |
| Bromodichloromethane 2943 | Organic Chemical | 4 of 4 results | Oct 17, 2006 | Aug 14, 2017 |
| Dibromochloromethane 2944 | Organic Chemical | 4 of 4 results | Oct 17, 2006 | Aug 14, 2017 |
| Dichloroacetic Acid 2451 | Organic Chemical | 3 of 3 results | Jun 21, 2011 | Aug 14, 2017 |
| Trichloroacetic Acid 2452 | Organic Chemical | 3 of 3 results | Jun 21, 2011 | Aug 14, 2017 |
| Sodium 1052 | Inorganic Chemical | 2 of 2 results | Sep 23, 2019 | Mar 21, 2023 |
| Monochloroacetic Acid 2450 | Organic Chemical | 2 of 3 results | Jul 14, 2014 | Aug 14, 2017 |
| Sulfate 1055 | Inorganic Chemical | 2 of 2 results | Nov 5, 2003 | Apr 5, 2004 |
| 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 130 samples, newest first — collected July 18, 2012 to September 17, 2014. The summary above covers all 130.
40 results from the 10 samples listed here: 18 detected, 22 not detected. Across the whole record it is 150 of 515. 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 1 sampling point 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 |
|---|---|---|
|
||
| 0.2387 mg/l , sample collected Sep 17, 2014 05:30, sampling point LC003 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
| 0.0005 mg/l , sample collected Sep 17, 2014 05:30, sampling point LC003 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
|
||
| 0.2082 mg/l , sample collected Sep 16, 2014 07:30, sampling point LC003 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
| 0.0058 mg/l , sample collected Sep 16, 2014 07:30, sampling point LC003 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
|
||
| 0.248 mg/l , sample collected Sep 16, 2014 14:00, sampling point LC003 | 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 14:00, sampling point LC003 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
|
||
| 0.003 mg/l , sample collected Jul 14, 2014 04:15, sampling point MRT000 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| 0.003 mg/l , sample collected Jul 14, 2014 04:15, sampling point MRT000 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| 0.001 mg/l , sample collected Jul 14, 2014 04:15, sampling point MRT000 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 14, 2014 04:15, sampling point MRT000 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 14, 2014 04:15, sampling point MRT000 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 0.007 mg/l , sample collected Jul 14, 2014 04:15, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 | Jan 1, 2012 – Dec 31, 2014 |
|
||
| 5.76 ug/l , sample collected Jul 14, 2014 04:19, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 14, 2014 04:19, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 2.9 ug/l , sample collected Jul 14, 2014 04:19, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| 2.06 ug/l , sample collected Jul 14, 2014 04:19, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 10.7 ug/l , sample collected Jul 14, 2014 04:19, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2012 – Dec 31, 2014 |
|
||
| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Oct 21, 2013 03:51, sampling point TF101 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2011 – Dec 31, 2013 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 28, 2013 02:41, sampling point TF101 | Arsenic 1005 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
| 0.03 mg/l , sample collected May 28, 2013 02:41, sampling point TF101 | Barium 1010 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 28, 2013 02:41, sampling point TF101 | Cadmium 1015 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
| 0.0014 mg/l , sample collected May 28, 2013 02:41, sampling point TF101 | Chromium 1020 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected May 28, 2013 02:41, sampling point TF101 | Fluoride 1025 EPA method 300.0 | Jan 1, 2011 – Dec 31, 2013 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 28, 2013 02:41, sampling point TF101 | Mercury 1035 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
| 0.0044 mg/l , sample collected May 28, 2013 02:41, sampling point TF101 | Nickel 1036 EPA method 200.8 | Not recorded |
| Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected May 28, 2013 02:41, sampling point TF101 | Selenium 1045 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 28, 2013 02:41, sampling point TF101 | Antimony, Total 1074 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 28, 2013 02:41, sampling point TF101 | Beryllium, Total 1075 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 28, 2013 02:41, sampling point TF101 | Thallium, Total 1085 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected May 20, 2013 04:14, sampling point TF101 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2013 – Dec 31, 2013 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected May 20, 2013 04:14, sampling point TF101 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2013 – Dec 31, 2013 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected May 20, 2013 04:14, sampling point TF101 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2013 – Dec 31, 2013 |
|
||
| 0.6 pci/l , sample collected Jul 19, 2012 14:15, sampling point TF101 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.49 pci/l Minimum Reporting Level , sample collected Jul 19, 2012 14:15, sampling point TF101 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.382 pci/l Minimum Reporting Level , sample collected Jul 19, 2012 14:15, sampling point TF101 | Radium-226 4020 EPA method 903.1 | Jul 1, 2012 – Sep 30, 2012 |
| Not detected below 0.49 pci/l Minimum Reporting Level , sample collected Jul 19, 2012 14:15, sampling point TF101 | Radium-228 4030 EPA method 904.0 | Jul 1, 2012 – Sep 30, 2012 |
|
||
| 0.6 pci/l , sample collected Jul 18, 2012 16:10, sampling point TF101 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.49 pci/l Minimum Reporting Level , sample collected Jul 18, 2012 16:10, sampling point TF101 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.382 pci/l Minimum Reporting Level , sample collected Jul 18, 2012 16:10, sampling point TF101 | Radium-226 4020 EPA method 903.1 | Jul 1, 2012 – Sep 30, 2012 |
| Not detected below 0.49 pci/l Minimum Reporting Level , sample collected Jul 18, 2012 16:10, sampling point TF101 | Radium-228 4030 EPA method 904.0 | Jul 1, 2012 – Sep 30, 2012 |
-
- Collected
- Sep 17, 2014 05:30
- Sampling point
- LC003 Location withheld
- Sample type
- Routine
- Lab sample
- 140918-132PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.2387 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0005 mg/l
-
- Collected
- Sep 16, 2014 07:30
- Sampling point
- LC003 Location withheld
- Sample type
- Routine
- Lab sample
- 140918-143PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.2082 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0058 mg/l
-
- Collected
- Sep 16, 2014 14:00
- Sampling point
- LC003 Location withheld
- Sample type
- Routine
- Lab sample
- 140918-142PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.248 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jul 14, 2014 04:15
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 140715-019HA
- Laboratory
- MSDH Lab
-
Monochloroacetic Acid 2450 EPA method 552.2
- Result
- 0.003 mg/l
- Monitoring period
- Not recorded
-
Dichloroacetic Acid 2451 EPA method 552.2
- Result
- 0.003 mg/l
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- 0.001 mg/l
- Monitoring period
- Not recorded
-
Monobromoacetic Acid 2453 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- 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
- 0.007 mg/l
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
- Collected
- Jul 14, 2014 04:19
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 140715-019TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- 5.76 ug/l
- 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
- 2.9 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- 2.06 ug/l
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 10.7 ug/l
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
- Collected
- Oct 21, 2013 03:51
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 131022-012CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- May 28, 2013 02:41
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 130529-055IN
- Laboratory
- MSDH Lab
-
Arsenic 1005 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Barium 1010 EPA method 200.8
- Result
- 0.03 mg/l
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Cadmium 1015 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Chromium 1020 EPA method 200.8
- Result
- 0.0014 mg/l
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Fluoride 1025 EPA method 300.0
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Mercury 1035 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Nickel 1036 EPA method 200.8
- Result
- 0.0044 mg/l
- Monitoring period
- Not recorded
-
Selenium 1045 EPA method 200.8
- Result
- Not detected below 0.0025 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Antimony, Total 1074 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Beryllium, Total 1075 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Thallium, Total 1085 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
- Collected
- May 20, 2013 04:14
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 130521-048NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2013 – Dec 31, 2013
-
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
- Jul 19, 2012 14:15
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 201212110062
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- 0.6 pci/l
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.49 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.382 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.49 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
- Collected
- Jul 18, 2012 16:10
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 120719-020
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- 0.6 pci/l
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.49 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.382 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.49 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
Routine (10).