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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

MS0370011 , West Lamar Water Assn #1

30 of the 60 analytes this system has been tested for have been detected at least once, across 750 samples on record.

The other 30 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 750 samples on record, detections range from September 29, 2003 to July 6, 2026. 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 West Lamar Water Assn #1, 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 240 of 240 results Jun 24, 2004 Jun 25, 2024
Lead 1030 Inorganic Chemical 122 of 240 results Jun 24, 2004 Jun 25, 2024
Barium 1010 Inorganic Chemical 54 of 54 results Sep 29, 2003 Jul 6, 2026
Fluoride 1025 Inorganic Chemical 54 of 54 results Sep 29, 2003 Jul 6, 2026
TTHM 2950 Organic Chemical 48 of 55 results Mar 10, 2004 Jun 24, 2026
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 40 of 54 results Mar 21, 2006 Apr 22, 2025
Xylenes, Total 2955 Organic Chemical 36 of 135 results Oct 31, 2007 Jul 15, 2015
Chloroform 2941 Organic Chemical 34 of 35 results Aug 3, 2006 Jun 24, 2026
Chromium 1020 Inorganic Chemical 29 of 54 results Sep 29, 2003 Apr 20, 2020
Dichloroacetic Acid 2451 Organic Chemical 26 of 32 results Jul 21, 2008 Dec 14, 2020
Trichloroacetic Acid 2452 Organic Chemical 26 of 32 results Aug 26, 2009 Dec 14, 2020
Bromodichloromethane 2943 Organic Chemical 22 of 35 results Jul 21, 2008 Jun 24, 2026
Ethylbenzene 2992 Organic Chemical 14 of 135 results Mar 4, 2009 Apr 21, 2010
Sodium 1052 Inorganic Chemical 11 of 11 results Feb 16, 2022 Feb 18, 2025
Nickel 1036 Inorganic Chemical 7 of 49 results Mar 23, 2005 Mar 31, 2014
Combined Radium (-226 & -228) 4010 Radionuclide 6 of 27 results Feb 16, 2009 May 20, 2019
Monochloroacetic Acid 2450 Organic Chemical 6 of 32 results Jun 9, 2014 Jun 11, 2018
Sulfate 1055 Inorganic Chemical 6 of 6 results Sep 29, 2003 Mar 1, 2004
Monobromoacetic Acid 2453 Organic Chemical 5 of 32 results Jun 28, 2016 Dec 14, 2020
Radium-226 4020 Radionuclide 5 of 27 results Jun 23, 2009 May 20, 2019
Radium-228 4030 Radionuclide 5 of 27 results Feb 16, 2009 May 20, 2019
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 13 results Mar 5, 2012 Oct 4, 2012
Arsenic 1005 Inorganic Chemical 4 of 54 results Dec 12, 2005 Mar 31, 2014
Gross Alpha Particle Activity 4109 Radionuclide 3 of 16 results Nov 23, 2009 Sep 12, 2012
Gross Beta Particle Activity 4100 Radionuclide 3 of 3 results Sep 30, 2009 Mar 10, 2010
Gross Alpha, Excl. Radon & U 4000 Radionuclide 2 of 14 results Nov 23, 2009 Mar 10, 2010
Mercury 1035 Inorganic Chemical 2 of 54 results Mar 23, 2005 Mar 23, 2005
Dibromochloromethane 2944 Organic Chemical 1 of 35 results Aug 26, 2009 Aug 26, 2009
Cadmium 1015 Inorganic Chemical 1 of 54 results Dec 12, 2005 Dec 12, 2005
Selenium 1045 Inorganic Chemical 1 of 54 results Dec 12, 2005 Dec 12, 2005

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 161–170 of 750 samples, newest first — collected May 20, 2019 to March 17, 2020. The summary above covers all 750.

33 results from the 10 samples listed here: 11 detected, 22 not detected. Across the whole record it is 818 of 4,862. 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 West Lamar Water Assn #1, every result from 161 to 170 of 750 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
Mar 17, 2020 09:25
Sampling point
TF105 Treatment Plant T105
Sample type
Routine
Lab sample
200318-025NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 17, 2020 09:25, sampling point TF105 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 17, 2020 09:25, sampling point TF105 Nitrate 1040 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 17, 2020 09:25, sampling point TF105 Nitrite 1041 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Collected
Mar 17, 2020 10:05
Sampling point
TF107
Sample type
Routine
Lab sample
200318-024NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 17, 2020 10:05, sampling point TF107 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 17, 2020 10:05, sampling point TF107 Nitrate 1040 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 17, 2020 10:05, sampling point TF107 Nitrite 1041 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Collected
Mar 17, 2020 09:04
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
200318-023NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 17, 2020 09:04, sampling point TF104 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 17, 2020 09:04, sampling point TF104 Nitrate 1040 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 17, 2020 09:04, sampling point TF104 Nitrite 1041 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Collected
Mar 17, 2020 10:05
Sampling point
TF109
Sample type
Routine
Lab sample
200318-020NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 17, 2020 10:05, sampling point TF109 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 17, 2020 10:05, sampling point TF109 Nitrate 1040 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 17, 2020 10:05, sampling point TF109 Nitrite 1041 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Collected
Mar 17, 2020 09:50
Sampling point
TF106 Treatment Plant T106
Sample type
Routine
Lab sample
200318-010NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 17, 2020 09:50, sampling point TF106 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 17, 2020 09:50, sampling point TF106 Nitrate 1040 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 17, 2020 09:50, sampling point TF106 Nitrite 1041 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Collected
Aug 13, 2019 12:02
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
190814-008HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Aug 13, 2019 12:02, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.002 mg/l , sample collected Aug 13, 2019 12:02, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.001 mg/l , sample collected Aug 13, 2019 12:02, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
0.001 mg/l , sample collected Aug 13, 2019 12:02, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 13, 2019 12:02, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.004 mg/l , sample collected Aug 13, 2019 12:02, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2019 – Dec 31, 2019
Collected
Aug 13, 2019 12:04
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
190814-008TH
Laboratory
MSDH Lab
2.76 ug/l , sample collected Aug 13, 2019 12:04, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 13, 2019 12:04, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
1.62 ug/l , sample collected Aug 13, 2019 12:04, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 13, 2019 12:04, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
4.38 ug/l , sample collected Aug 13, 2019 12:04, sampling point MRT000 TTHM 2950 Jan 1, 2019 – Dec 31, 2019
Collected
May 20, 2019 10:00
Sampling point
TF108 TF108
Sample type
Routine
Lab sample
4305225
Laboratory
Eurofins Eaton Analytical South Bend in
1.34 pci/l , sample collected May 20, 2019 10:00, sampling point TF108 Combined Radium (-226 & -228) 4010 EPA method 7500-RA Not recorded
0.67 pci/l , sample collected May 20, 2019 10:00, sampling point TF108 Radium-226 4020 EPA method 7500-RAB Jan 1, 2019 – Dec 31, 2027
0.67 pci/l , sample collected May 20, 2019 10:00, sampling point TF108 Radium-228 4030 EPA method 7500-RAD Jan 1, 2019 – Dec 31, 2027
Collected
May 20, 2019 10:00
Sampling point
TF108 TF108
Sample type
Routine
Lab sample
4305224
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 1.46 pci/l Minimum Reporting Level , sample collected May 20, 2019 10:00, sampling point TF108 Gross Alpha, Incl. Radon & U 4002 EPA method 7110B Jan 1, 2019 – Dec 31, 2027
Collected
May 20, 2019 09:10
Sampling point
TF106 Treatment Plant T106
Sample type
Routine
Lab sample
4305221
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 0.6 pci/l Minimum Reporting Level , sample collected May 20, 2019 09:10, sampling point TF106 Combined Radium (-226 & -228) 4010 EPA method 7500-RA Not recorded
0.42 pci/l , sample collected May 20, 2019 09:10, sampling point TF106 Radium-226 4020 EPA method 7500-RAB Jan 1, 2019 – Dec 31, 2027
Not detected below 0.6 pci/l Minimum Reporting Level , sample collected May 20, 2019 09:10, sampling point TF106 Radium-228 4030 EPA method 7500-RAD Jan 1, 2019 – Dec 31, 2027

Routine (10).