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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

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.

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 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 131–135 of 135 samples, newest first — collected November 5, 2003 to April 5, 2004. The summary above covers all 135.

47 results from the 5 samples listed here: 5 detected, 42 not detected. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.

Chemical and radiological sample results for Tri-Lakes Water Assn-East, every result from 131 to 135 of 135 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
Apr 5, 2004
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
040406-067IN
Laboratory
MSDH Lab
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Apr 5, 2004, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
0.026 mg/l , sample collected Apr 5, 2004, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Apr 5, 2004, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
0.001 mg/l , sample collected Apr 5, 2004, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 5, 2004, sampling point TF101 Fluoride 1025 EPA method 300.0 Jan 1, 2002 – Dec 31, 2004
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 5, 2004, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Apr 5, 2004, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Apr 5, 2004, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
3.31 mg/l , sample collected Apr 5, 2004, sampling point TF101 Sulfate 1055 EPA method 300.0 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Apr 5, 2004, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
Not detected below 0.0003 mg/l Minimum Reporting Level , sample collected Apr 5, 2004, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 5, 2004, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
Collected
Apr 5, 2004
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
040406-046CN
Laboratory
MSDH Lab
Not detected below 0.01 mg/l Minimum Reporting Level , sample collected Apr 5, 2004, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2002 – Dec 31, 2004
Collected
Mar 16, 2004
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
040317-012VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 16, 2004, sampling point TF101 1,2,4-Trichlorobenzene 2378 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 16, 2004, sampling point TF101 Cis-1,2-Dichloroethylene 2380 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 16, 2004, sampling point TF101 Xylenes, Total 2955 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 16, 2004, sampling point TF101 Dichloromethane 2964 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 16, 2004, sampling point TF101 O-Dichlorobenzene 2968 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 16, 2004, sampling point TF101 P-Dichlorobenzene 2969 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 16, 2004, sampling point TF101 Vinyl Chloride 2976 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 16, 2004, sampling point TF101 1,1-Dichloroethylene 2977 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 16, 2004, sampling point TF101 Trans-1,2-Dichloroethylene 2979 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 16, 2004, sampling point TF101 1,2-Dichloroethane 2980 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 16, 2004, sampling point TF101 1,1,1-Trichloroethane 2981 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 16, 2004, sampling point TF101 Carbon Tetrachloride 2982 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 16, 2004, sampling point TF101 1,2-Dichloropropane 2983 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 16, 2004, sampling point TF101 Trichloroethylene 2984 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 16, 2004, sampling point TF101 1,1,2-Trichloroethane 2985 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 16, 2004, sampling point TF101 Tetrachloroethylene 2987 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 16, 2004, sampling point TF101 Chlorobenzene 2989 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 16, 2004, sampling point TF101 Benzene 2990 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 16, 2004, sampling point TF101 Toluene 2991 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 16, 2004, sampling point TF101 Ethylbenzene 2992 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 16, 2004, sampling point TF101 Styrene 2996 Jan 1, 2004 – Mar 31, 2004
Collected
Nov 5, 2003
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
031106-044CN
Laboratory
MSDH Lab
Not detected below 0.01 mg/l Minimum Reporting Level , sample collected Nov 5, 2003, sampling point TF101 Cyanide 1024 EPA method QC10204001X Not recorded
Collected
Nov 5, 2003
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
031106-032IN
Laboratory
MSDH Lab
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Nov 5, 2003, sampling point TF101 Arsenic 1005 EPA method 200.8 Not recorded
0.024 mg/l , sample collected Nov 5, 2003, sampling point TF101 Barium 1010 EPA method 200.8 Not recorded
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Nov 5, 2003, sampling point TF101 Cadmium 1015 EPA method 200.8 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Nov 5, 2003, sampling point TF101 Chromium 1020 EPA method 200.8 Not recorded
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Nov 5, 2003, sampling point TF101 Fluoride 1025 EPA method 300.0 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 5, 2003, sampling point TF101 Mercury 1035 EPA method 200.8 Not recorded
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Nov 5, 2003, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Nov 5, 2003, sampling point TF101 Selenium 1045 EPA method 200.8 Not recorded
3.71 mg/l , sample collected Nov 5, 2003, sampling point TF101 Sulfate 1055 EPA method 300.0 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Nov 5, 2003, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Not recorded
Not detected below 0.0003 mg/l Minimum Reporting Level , sample collected Nov 5, 2003, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 5, 2003, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Not recorded

Routine (5).