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.
| 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 521–530 of 750 samples, newest first — collected August 9, 2010 to August 31, 2010. The summary above covers all 750.
29 results from the 10 samples listed here: 9 detected, 20 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.
| Result | Analyte | Monitoring period |
|---|---|---|
|
||
| 0.0253 mg/l , sample collected Aug 31, 2010, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
| 0.0012 mg/l , sample collected Aug 31, 2010, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
|
||
| 0.0047 mg/l , sample collected Aug 30, 2010, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 30, 2010, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
|
||
| 0.0049 mg/l , sample collected Aug 30, 2010, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 30, 2010, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
|
||
| 0.0078 mg/l , sample collected Aug 30, 2010, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 30, 2010, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
|
||
| 0.004 mg/l , sample collected Aug 30, 2010, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 30, 2010, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
|
||
| 0.0052 mg/l , sample collected Aug 30, 2010, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 30, 2010, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
|
||
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 16, 2010, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 16, 2010, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 16, 2010, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 16, 2010, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 0 This result is recorded as a detection, and the figure the agency wrote — "0.00" — is zero to the precision it was written to. Read the zero as "smaller than the written figure resolves", not as "none present". SDWIS holds a separate numeric concentration that Drinking Water Watch does not publish, so this endpoint does not carry it either; no more precise magnitude is available here. The agency recorded a value but no unit of measure for it. The unit is NOT inferable from the analyte: many analytes are reported in more than one unit — TTHM and HAA5 in both MG/L and UG/L — so there is no per-analyte default to fall back on. The number is published as it stands and must not be compared to a limit. The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Aug 16, 2010, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2010 – Dec 31, 2010 |
|
||
| Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Aug 16, 2010, sampling point MRT000 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 16, 2010, sampling point MRT000 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 16, 2010, sampling point MRT000 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 16, 2010, 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 16, 2010, sampling point MRT000 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 0 This result is recorded as a detection, and the figure the agency wrote — "0.00" — is zero to the precision it was written to. Read the zero as "smaller than the written figure resolves", not as "none present". SDWIS holds a separate numeric concentration that Drinking Water Watch does not publish, so this endpoint does not carry it either; no more precise magnitude is available here. The agency recorded a value but no unit of measure for it. The unit is NOT inferable from the analyte: many analytes are reported in more than one unit — TTHM and HAA5 in both MG/L and UG/L — so there is no per-analyte default to fall back on. The number is published as it stands and must not be compared to a limit. The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Aug 16, 2010, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 | Jan 1, 2010 – Dec 31, 2010 |
|
||
| Not detected below 0.25 mg/l Minimum Reporting Level , sample collected Aug 9, 2010, sampling point TF104 | Nitrate-Nitrite 1038 EPA method 353.2 | Jan 1, 2010 – Dec 31, 2010 |
| Not detected below 0.2 mg/l Minimum Reporting Level , sample collected Aug 9, 2010, sampling point TF104 | Nitrate 1040 EPA method 353.2 | Jan 1, 2010 – Dec 31, 2010 |
| Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Aug 9, 2010, sampling point TF104 | Nitrite 1041 EPA method 353.2 | Jan 1, 2010 – Dec 31, 2010 |
|
||
| Not detected below 0.25 mg/l Minimum Reporting Level , sample collected Aug 9, 2010, sampling point TF105 | Nitrate-Nitrite 1038 EPA method 353.2 | Jan 1, 2010 – Dec 31, 2010 |
| Not detected below 0.2 mg/l Minimum Reporting Level , sample collected Aug 9, 2010, sampling point TF105 | Nitrate 1040 EPA method 353.2 | Jan 1, 2010 – Dec 31, 2010 |
| Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Aug 9, 2010, sampling point TF105 | Nitrite 1041 EPA method 353.2 | Jan 1, 2010 – Dec 31, 2010 |
-
- Collected
- Aug 31, 2010
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 100901-060PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2008 – Dec 31, 2010
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0253 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0012 mg/l
-
- Collected
- Aug 30, 2010
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 100901-088PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2008 – Dec 31, 2010
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0047 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Aug 30, 2010
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 100901-086PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2008 – Dec 31, 2010
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0049 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Aug 30, 2010
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 100901-084PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2008 – Dec 31, 2010
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0078 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Aug 30, 2010
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 100901-082PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2008 – Dec 31, 2010
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.004 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Aug 30, 2010
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 100901-078PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2008 – Dec 31, 2010
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0052 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Aug 16, 2010
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 100817-006TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- 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
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 0 This result is recorded as a detection, and the figure the agency wrote — "0.00" — is zero to the precision it was written to. Read the zero as "smaller than the written figure resolves", not as "none present". SDWIS holds a separate numeric concentration that Drinking Water Watch does not publish, so this endpoint does not carry it either; no more precise magnitude is available here. The agency recorded a value but no unit of measure for it. The unit is NOT inferable from the analyte: many analytes are reported in more than one unit — TTHM and HAA5 in both MG/L and UG/L — so there is no per-analyte default to fall back on. The number is published as it stands and must not be compared to a limit. The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType.
- Monitoring period
- Jan 1, 2010 – Dec 31, 2010
-
- Collected
- Aug 16, 2010
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 100817-006HA
- Laboratory
- MSDH Lab
-
Monochloroacetic Acid 2450 EPA method 552.2
- Result
- Not detected below 0.002 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dichloroacetic Acid 2451 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- 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 This result is recorded as a detection, and the figure the agency wrote — "0.00" — is zero to the precision it was written to. Read the zero as "smaller than the written figure resolves", not as "none present". SDWIS holds a separate numeric concentration that Drinking Water Watch does not publish, so this endpoint does not carry it either; no more precise magnitude is available here. The agency recorded a value but no unit of measure for it. The unit is NOT inferable from the analyte: many analytes are reported in more than one unit — TTHM and HAA5 in both MG/L and UG/L — so there is no per-analyte default to fall back on. The number is published as it stands and must not be compared to a limit. The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType.
- Monitoring period
- Jan 1, 2010 – Dec 31, 2010
-
- Collected
- Aug 9, 2010
- Sampling point
- TF104 Treatment Plant T104
- Sample type
- Routine
- Lab sample
- 100810-047NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2010 – Dec 31, 2010
-
Nitrate-Nitrite 1038 EPA method 353.2
- Result
- Not detected below 0.25 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method 353.2
- Result
- Not detected below 0.2 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method 353.2
- Result
- Not detected below 0.05 mg/l Minimum Reporting Level
-
- Collected
- Aug 9, 2010
- Sampling point
- TF105 Treatment Plant T105
- Sample type
- Routine
- Lab sample
- 100810-037NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2010 – Dec 31, 2010
-
Nitrate-Nitrite 1038 EPA method 353.2
- Result
- Not detected below 0.25 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method 353.2
- Result
- Not detected below 0.2 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method 353.2
- Result
- Not detected below 0.05 mg/l Minimum Reporting Level
Routine (10).