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
MS0370004 , Lamar Park Water & Sewage Assn
30 of the 60 analytes this system has been tested for have been detected at least once, across 450 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 450 samples on record, detections range from September 29, 2003 to June 22, 2026. These figures cover the whole record; the list of samples further down is narrowed.
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 | 141 of 141 results | Aug 28, 2007 | Jul 17, 2024 |
| Lead 1030 | Inorganic Chemical | 71 of 141 results | Aug 28, 2007 | Jul 17, 2024 |
| Barium 1010 | Inorganic Chemical | 37 of 38 results | Sep 29, 2003 | Feb 25, 2025 |
| Fluoride 1025 | Inorganic Chemical | 23 of 38 results | Sep 29, 2003 | Jun 22, 2026 |
| Chromium 1020 | Inorganic Chemical | 21 of 38 results | Sep 29, 2003 | Apr 21, 2020 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 20 of 20 results | Mar 7, 2012 | Oct 5, 2012 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 16 of 19 results | Sep 21, 2009 | Nov 25, 2025 |
| TTHM 2950 | Organic Chemical | 15 of 20 results | Aug 13, 2007 | Sep 3, 2025 |
| Sodium 1052 | Inorganic Chemical | 13 of 13 results | Dec 17, 2019 | Jun 22, 2026 |
| Combined Radium (-226 & -228) 4010 | Radionuclide | 12 of 28 results | Sep 22, 2009 | Oct 5, 2012 |
| Radium-226 4020 | Radionuclide | 12 of 28 results | Sep 22, 2009 | Oct 5, 2012 |
| Chloroform 2941 | Organic Chemical | 11 of 15 results | Aug 13, 2007 | Sep 3, 2025 |
| Bromodichloromethane 2943 | Organic Chemical | 10 of 15 results | Oct 26, 2020 | Sep 3, 2025 |
| Dibromochloromethane 2944 | Organic Chemical | 10 of 15 results | Oct 26, 2020 | Sep 3, 2025 |
| Dichloroacetic Acid 2451 | Organic Chemical | 9 of 15 results | Jun 29, 2015 | Nov 25, 2025 |
| Trichloroacetic Acid 2452 | Organic Chemical | 9 of 15 results | Mar 4, 2024 | Nov 25, 2025 |
| Gross Alpha, Excl. Radon & U 4000 | Radionuclide | 8 of 8 results | Sep 22, 2009 | Mar 9, 2010 |
| Gross Alpha Particle Activity 4109 | Radionuclide | 8 of 8 results | Sep 22, 2009 | Mar 9, 2010 |
| Radium-228 4030 | Radionuclide | 7 of 28 results | Sep 22, 2009 | Mar 9, 2010 |
| Gross Beta Particle Activity 4100 | Radionuclide | 7 of 7 results | Sep 22, 2009 | Mar 9, 2010 |
| Sulfate 1055 | Inorganic Chemical | 6 of 6 results | Sep 29, 2003 | Mar 1, 2004 |
| Nickel 1036 | Inorganic Chemical | 5 of 37 results | Mar 21, 2005 | Apr 1, 2019 |
| Xylenes, Total 2955 | Organic Chemical | 3 of 57 results | Aug 3, 2004 | Oct 20, 2008 |
| Ethylbenzene 2992 | Organic Chemical | 3 of 57 results | Aug 3, 2004 | Oct 20, 2008 |
| Monobromoacetic Acid 2453 | Organic Chemical | 1 of 15 results | Oct 26, 2020 | Oct 26, 2020 |
| Monochloroacetic Acid 2450 | Organic Chemical | 1 of 15 results | Aug 27, 2018 | Aug 27, 2018 |
| Arsenic 1005 | Inorganic Chemical | 1 of 38 results | Mar 31, 2014 | Mar 31, 2014 |
| Cyanide 1024 | Inorganic Chemical | 1 of 37 results | Apr 25, 2011 | Apr 25, 2011 |
| Selenium 1045 | Inorganic Chemical | 1 of 38 results | Dec 5, 2006 | Dec 5, 2006 |
| Thallium, Total 1085 | Inorganic Chemical | 1 of 38 results | Dec 5, 2006 | Dec 5, 2006 |
Showing samples collected between September 25, 2024 and September 25, 2026. That is this page’s default, not a limit on what the agency records.
Choose a date range
The most recent samples, result by result
The table below lists 1–10 of 20 samples, newest first — collected March 5, 2025 to June 22, 2026. The summary above covers all 20.
37 results from the 10 samples listed here: 9 detected, 28 not detected. Across the whole record it is 483 of 2,543. 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 2 sampling points 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 |
|---|---|---|
|
||
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 22, 2026, sampling point TF104 | Arsenic 1005 EPA method 200.8 | Not recorded |
| Not detected below 10 ug/l Minimum Reporting Level , sample collected Jun 22, 2026, sampling point TF104 | Barium 1010 EPA method 200.7 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 22, 2026, sampling point TF104 | Cadmium 1015 EPA method 200.7 | Not recorded |
| Not detected below 5 ug/l Minimum Reporting Level , sample collected Jun 22, 2026, sampling point TF104 | Chromium 1020 EPA method 200.7 | Not recorded |
| 0.24 mg/l , sample collected Jun 22, 2026, sampling point TF104 | Fluoride 1025 EPA method 300.0 | Not recorded |
| Not detected below 0.2 ug/l Minimum Reporting Level , sample collected Jun 22, 2026, sampling point TF104 | Mercury 1035 EPA method 245.1 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 22, 2026, sampling point TF104 | Selenium 1045 EPA method 200.8 | Not recorded |
| 67000 ug/l , sample collected Jun 22, 2026, sampling point TF104 | Sodium 1052 EPA method 200.7 | Jan 1, 2026 – Dec 31, 2028 |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 22, 2026, sampling point TF104 | Antimony, Total 1074 EPA method 200.8 | Not recorded |
| Not detected below 4 ug/l Minimum Reporting Level , sample collected Jun 22, 2026, sampling point TF104 | Beryllium, Total 1075 EPA method 200.7 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 22, 2026, sampling point TF104 | Thallium, Total 1085 EPA method 200.8 | Not recorded |
|
||
| Not detected below 2 ug/l Minimum Reporting Level , sample collected Nov 25, 2025 15:06, sampling point SM1 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| 1.9 ug/l , sample collected Nov 25, 2025 15:06, sampling point SM1 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| 2 ug/l , sample collected Nov 25, 2025 15:06, sampling point SM1 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 25, 2025 15:06, sampling point SM1 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 25, 2025 15:06, sampling point SM1 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 3.9 ug/l , sample collected Nov 25, 2025 15:06, sampling point SM1 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jan 1, 2025 – Dec 31, 2025 |
|
||
| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Sep 3, 2025 10:49, sampling point TF104 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2023 – Dec 31, 2025 |
|
||
| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Sep 3, 2025 11:13, sampling point TF103 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2023 – Dec 31, 2025 |
|
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| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Sep 3, 2025 10:35, sampling point TF102 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2023 – Dec 31, 2025 |
|
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| 5.9 ug/l , sample collected Sep 3, 2025 12:01, sampling point SM2 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 3, 2025 12:01, sampling point SM2 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 2.5 ug/l , sample collected Sep 3, 2025 12:01, sampling point SM2 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| 1.1 ug/l , sample collected Sep 3, 2025 12:01, sampling point SM2 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 9.5 ug/l , sample collected Sep 3, 2025 12:01, sampling point SM2 | TTHM 2950 EPA method 524.2 | Jan 1, 2025 – Dec 31, 2025 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 5, 2025 11:06, sampling point TF105 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 5, 2025 11:06, sampling point TF105 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 5, 2025 11:06, sampling point TF105 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 5, 2025 10:35, sampling point TF104 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 5, 2025 10:35, sampling point TF104 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 5, 2025 10:35, sampling point TF104 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 5, 2025 09:41, sampling point TF103 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 5, 2025 09:41, sampling point TF103 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 5, 2025 09:41, sampling point TF103 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 5, 2025 10:01, sampling point TF102 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 5, 2025 10:01, sampling point TF102 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 5, 2025 10:01, sampling point TF102 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
-
- Collected
- Jun 22, 2026
- Sampling point
- TF104 Treatment Plant T104
- Sample type
- Routine
- Lab sample
- 35045862001
- Laboratory
- Pace Analytical Services, LLC
-
Arsenic 1005 EPA method 200.8
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Barium 1010 EPA method 200.7
- Result
- Not detected below 10 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Cadmium 1015 EPA method 200.7
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Chromium 1020 EPA method 200.7
- Result
- Not detected below 5 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Fluoride 1025 EPA method 300.0
- Result
- 0.24 mg/l
- Monitoring period
- Not recorded
-
Mercury 1035 EPA method 245.1
- Result
- Not detected below 0.2 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Selenium 1045 EPA method 200.8
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Sodium 1052 EPA method 200.7
- Result
- 67000 ug/l
- Monitoring period
- Jan 1, 2026 – Dec 31, 2028
-
Antimony, Total 1074 EPA method 200.8
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Beryllium, Total 1075 EPA method 200.7
- Result
- Not detected below 4 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Thallium, Total 1085 EPA method 200.8
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
- Collected
- Nov 25, 2025 15:06
- Sampling point
- SM1 Location withheld
- Sample type
- Routine
- Lab sample
- 810-173361-1
- Laboratory
- Eurofins Eaton Analytical South Bend in
-
Monochloroacetic Acid 2450 EPA method 552.2
- Result
- Not detected below 2 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dichloroacetic Acid 2451 EPA method 552.2
- Result
- 1.9 ug/l
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- 2 ug/l
- Monitoring period
- Not recorded
-
Monobromoacetic Acid 2453 EPA method 552.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dibromoacetic Acid 2454 EPA method 552.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 3.9 ug/l
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
- Collected
- Sep 3, 2025 10:49
- Sampling point
- TF104 Treatment Plant T104
- Sample type
- Routine
- Lab sample
- CN-250904-026
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- Sep 3, 2025 11:13
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- CN-250904-025
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- Sep 3, 2025 10:35
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- CN-250904-024
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- Sep 3, 2025 12:01
- Sampling point
- SM2 Location withheld
- Sample type
- Routine
- Lab sample
- 810-162402-1
- Laboratory
- Eurofins Eaton Analytical South Bend in
-
Chloroform 2941 EPA method 524.2
- Result
- 5.9 ug/l
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- 2.5 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- 1.1 ug/l
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 9.5 ug/l
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
- Collected
- Mar 5, 2025 11:06
- Sampling point
- TF105
- Sample type
- Routine
- Lab sample
- NI-250306-028
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
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
- Mar 5, 2025 10:35
- Sampling point
- TF104 Treatment Plant T104
- Sample type
- Routine
- Lab sample
- NI-250306-027
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
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
- Mar 5, 2025 09:41
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- NI-250306-026
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
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
- Mar 5, 2025 10:01
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- NI-250306-025
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
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
Routine (10).