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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.

Every analyte ever detected for Tri-Lakes Water Assn-East, with how many results found it and when it was first and last detected. Covers the whole record, not only 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 61–70 of 130 samples, newest first — collected September 17, 2014 to November 3, 2014. The summary above covers all 130.

21 results from the 10 samples listed here: 11 detected, 10 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.

Chemical and radiological sample results for Tri-Lakes Water Assn-East, every result from 61 to 70 of 130 samples shown, newest first. Not detected means the amount was below the level the laboratory can reliably report, which is given beside it.
Result Analyte Monitoring period
Collected
Nov 3, 2014 15:24
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
141104-056NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Nov 3, 2014 15:24, 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 15:24, 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 15:24, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2014 – Dec 31, 2014
Collected
Sep 17, 2014 06:30
Sampling point
LC003 Location withheld
Sample type
Routine
Lab sample
140918-141PB
Laboratory
MSDH Lab
0.2513 mg/l , sample collected Sep 17, 2014 06:30, 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 17, 2014 06:30, sampling point LC003 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
Sep 17, 2014 04:30
Sampling point
LC003 Location withheld
Sample type
Routine
Lab sample
140918-140PB
Laboratory
MSDH Lab
0.2684 mg/l , sample collected Sep 17, 2014 04:30, 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 17, 2014 04:30, sampling point LC003 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
Sep 17, 2014 06:47
Sampling point
LC003 Location withheld
Sample type
Routine
Lab sample
140918-139PB
Laboratory
MSDH Lab
0.2341 mg/l , sample collected Sep 17, 2014 06:47, 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 17, 2014 06:47, sampling point LC003 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
Sep 17, 2014 04:42
Sampling point
LC003 Location withheld
Sample type
Routine
Lab sample
140918-138PB
Laboratory
MSDH Lab
0.2754 mg/l , sample collected Sep 17, 2014 04:42, sampling point LC003 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
0.001 mg/l , sample collected Sep 17, 2014 04:42, sampling point LC003 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
Sep 17, 2014
Sampling point
LC003 Location withheld
Sample type
Routine
Lab sample
140918-137PB
Laboratory
MSDH Lab
0.0962 mg/l , sample collected Sep 17, 2014, 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 17, 2014, sampling point LC003 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
Sep 17, 2014
Sampling point
LC003 Location withheld
Sample type
Routine
Lab sample
140918-136PB
Laboratory
MSDH Lab
0.0623 mg/l , sample collected Sep 17, 2014, 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, sampling point LC003 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
Sep 17, 2014 03:40
Sampling point
LC003 Location withheld
Sample type
Routine
Lab sample
140918-135PB
Laboratory
MSDH Lab
0.095 mg/l , sample collected Sep 17, 2014 03:40, 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 17, 2014 03:40, sampling point LC003 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
Sep 17, 2014 08:33
Sampling point
LC003 Location withheld
Sample type
Routine
Lab sample
140918-134PB
Laboratory
MSDH Lab
0.2398 mg/l , sample collected Sep 17, 2014 08:33, 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 17, 2014 08:33, sampling point LC003 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
Sep 17, 2014 06:25
Sampling point
LC003 Location withheld
Sample type
Routine
Lab sample
140918-133PB
Laboratory
MSDH Lab
0.1287 mg/l , sample collected Sep 17, 2014 06:25, 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 17, 2014 06:25, sampling point LC003 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014

Routine (10).