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
MS0060011 , Lamont Water Corporation
17 of the 58 analytes this system has been tested for have been detected at least once, across 165 samples on record.
The other 41 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 165 samples on record, detections range from November 30, 1993 to June 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.
| Analyte | Kind | Detected in | First detected | Last detected |
|---|---|---|---|---|
| Copper, Free 1022 | Inorganic Chemical | 53 of 82 results | Nov 30, 1993 | Jun 2, 2025 |
| Lead 1030 | Inorganic Chemical | 40 of 82 results | Nov 30, 1993 | Jun 2, 2025 |
| Barium 1010 | Inorganic Chemical | 14 of 14 results | Jan 29, 2002 | Jan 13, 2025 |
| Fluoride 1025 | Inorganic Chemical | 14 of 14 results | Jan 29, 2002 | Jan 13, 2025 |
| Nitrite 1041 | Inorganic Chemical | 8 of 22 results | Jun 7, 2006 | Jan 13, 2025 |
| Chromium 1020 | Inorganic Chemical | 7 of 14 results | Jan 29, 2002 | Jan 13, 2025 |
| Selenium 1045 | Inorganic Chemical | 4 of 14 results | Jan 12, 2004 | Mar 12, 2008 |
| Sodium 1052 | Inorganic Chemical | 3 of 3 results | Sep 16, 2019 | Nov 4, 2024 |
| Nickel 1036 | Inorganic Chemical | 3 of 14 results | Mar 12, 2008 | May 2, 2022 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 3 of 8 results | Jun 27, 2007 | Aug 4, 2014 |
| Trichloroacetic Acid 2452 | Organic Chemical | 2 of 4 results | Jul 14, 2011 | Aug 4, 2014 |
| Gross Alpha Particle Activity 4109 | Radionuclide | 2 of 4 results | Jun 25, 2012 | Sep 19, 2012 |
| TTHM 2950 | Organic Chemical | 2 of 8 results | Jun 27, 2007 | Jul 15, 2008 |
| Arsenic 1005 | Inorganic Chemical | 1 of 14 results | Jan 13, 2025 | Jan 13, 2025 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 1 of 22 results | Jan 20, 2021 | Jan 20, 2021 |
| Dichloroacetic Acid 2451 | Organic Chemical | 1 of 4 results | Jul 14, 2011 | Jul 14, 2011 |
| Cadmium 1015 | Inorganic Chemical | 1 of 14 results | Feb 14, 2005 | Feb 14, 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 61–70 of 165 samples, newest first — collected September 28, 2011 to June 30, 2014. The summary above covers all 165.
37 results from the 10 samples listed here: 8 detected, 29 not detected. Across the whole record it is 159 of 721. 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 |
|---|---|---|
|
||
| 0.014 mg/l , sample collected Jun 30, 2014 07:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
| 0.0026 mg/l , sample collected Jun 30, 2014 07:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
|
||
| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Jun 25, 2014 12:25, sampling point TF101 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2014 – Dec 31, 2016 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 5, 2014 12:15, sampling point TF101 | Arsenic 1005 EPA method 200.8 | Jan 1, 2014 – Dec 31, 2016 |
| 0.0095 mg/l , sample collected May 5, 2014 12:15, sampling point TF101 | Barium 1010 EPA method 200.8 | Jan 1, 2014 – Dec 31, 2016 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 5, 2014 12:15, sampling point TF101 | Cadmium 1015 EPA method 200.8 | Jan 1, 2014 – Dec 31, 2016 |
| 0.0074 mg/l , sample collected May 5, 2014 12:15, sampling point TF101 | Chromium 1020 EPA method 200.8 | Jan 1, 2014 – Dec 31, 2016 |
| 0.358 mg/l , sample collected May 5, 2014 12:15, sampling point TF101 | Fluoride 1025 EPA method 300.0 | Jan 1, 2014 – Dec 31, 2016 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 5, 2014 12:15, sampling point TF101 | Mercury 1035 EPA method 200.8 | Jan 1, 2014 – Dec 31, 2016 |
| 0.0006 mg/l , sample collected May 5, 2014 12:15, sampling point TF101 | Nickel 1036 EPA method 200.8 | Not recorded |
| Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected May 5, 2014 12:15, sampling point TF101 | Selenium 1045 EPA method 200.8 | Jan 1, 2014 – Dec 31, 2016 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 5, 2014 12:15, sampling point TF101 | Antimony, Total 1074 EPA method 200.8 | Jan 1, 2014 – Dec 31, 2016 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 5, 2014 12:15, sampling point TF101 | Beryllium, Total 1075 EPA method 200.8 | Jan 1, 2014 – Dec 31, 2016 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 5, 2014 12:15, sampling point TF101 | Thallium, Total 1085 EPA method 200.8 | Jan 1, 2014 – Dec 31, 2016 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 21, 2014 12:10, 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 Jan 21, 2014 12:10, 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 Jan 21, 2014 12:10, sampling point TF101 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2014 – Dec 31, 2014 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 23, 2013 03:00, sampling point TF101 | Nitrate-Nitrite 1038 EPA method 353.2 | Jan 1, 2013 – Dec 31, 2013 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 23, 2013 03:00, sampling point TF101 | Nitrate 1040 EPA method 353.2 | Jan 1, 2013 – Dec 31, 2013 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 23, 2013 03:00, sampling point TF101 | Nitrite 1041 EPA method 353.2 | Jan 1, 2013 – Dec 31, 2013 |
|
||
| 0.6 pci/l , sample collected Sep 19, 2012 12:40, sampling point TF101 | Gross Alpha Particle Activity 4109 EPA method 00-02 | Not recorded |
|
||
| 0.6 pci/l 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 Jun 25, 2012 13:50, sampling point TF101 | Gross Alpha Particle Activity 4109 EPA method 00-02 | Not recorded |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 17, 2012 02:30, sampling point TF101 | Nitrate-Nitrite 1038 EPA method 353.2 | Jan 1, 2012 – Dec 31, 2012 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 17, 2012 02:30, sampling point TF101 | Nitrate 1040 EPA method 353.2 | Jan 1, 2012 – Dec 31, 2012 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 17, 2012 02:30, sampling point TF101 | Nitrite 1041 EPA method 353.2 | Jan 1, 2012 – Dec 31, 2012 |
|
||
| Not detected below 2.86 pci/l Minimum Reporting Level , sample collected Dec 5, 2011 13:27, sampling point TF101 | Gross Alpha, Excl. Radon & U 4000 | Oct 1, 2011 – Dec 31, 2011 |
| Not detected below 0.067 ug/l Minimum Reporting Level , sample collected Dec 5, 2011 13:27, sampling point TF101 | Combined Uranium 4006 EPA method 200.8 | Oct 1, 2011 – Dec 31, 2011 |
| Not detected below 0.658 pci/l Minimum Reporting Level , sample collected Dec 5, 2011 13:27, sampling point TF101 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.249 pci/l Minimum Reporting Level , sample collected Dec 5, 2011 13:27, sampling point TF101 | Radium-226 4020 EPA method 903.1 | Oct 1, 2011 – Dec 31, 2011 |
| Not detected below 0.658 pci/l Minimum Reporting Level , sample collected Dec 5, 2011 13:27, sampling point TF101 | Radium-228 4030 EPA method 904.0 | Oct 1, 2011 – Dec 31, 2011 |
| Not detected below 2.86 pci/l Minimum Reporting Level , sample collected Dec 5, 2011 13:27, sampling point TF101 | Gross Alpha Particle Activity 4109 EPA method 900.0 | Oct 1, 2011 – Dec 31, 2011 |
|
||
| Not detected below 2.85 pci/l Minimum Reporting Level , sample collected Sep 28, 2011 13:35, sampling point TF101 | Gross Alpha, Excl. Radon & U 4000 | Jul 1, 2011 – Sep 30, 2011 |
| Not detected below 0.067 ug/l Minimum Reporting Level , sample collected Sep 28, 2011 13:35, sampling point TF101 | Combined Uranium 4006 EPA method 200.8 | Jul 1, 2011 – Sep 30, 2011 |
| Not detected below 0.876 pci/l Minimum Reporting Level , sample collected Sep 28, 2011 13:35, sampling point TF101 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.876 pci/l Minimum Reporting Level , sample collected Sep 28, 2011 13:35, sampling point TF101 | Radium-226 4020 EPA method 903.1 | Jul 1, 2011 – Sep 30, 2011 |
| Not detected below 0.363 pci/l Minimum Reporting Level , sample collected Sep 28, 2011 13:35, sampling point TF101 | Radium-228 4030 EPA method 904.0 | Jul 1, 2011 – Sep 30, 2011 |
| Not detected below 2.85 pci/l Minimum Reporting Level , sample collected Sep 28, 2011 13:35, sampling point TF101 | Gross Alpha Particle Activity 4109 EPA method 900.0 | Jul 1, 2011 – Sep 30, 2011 |
-
- Collected
- Jun 30, 2014 07:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140701-026PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.014 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0026 mg/l
-
- Collected
- Jun 25, 2014 12:25
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 140626-010CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2014 – Dec 31, 2016
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- May 5, 2014 12:15
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 140506-064IN
- Laboratory
- MSDH Lab
-
Arsenic 1005 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2014 – Dec 31, 2016
-
Barium 1010 EPA method 200.8
- Result
- 0.0095 mg/l
- Monitoring period
- Jan 1, 2014 – Dec 31, 2016
-
Cadmium 1015 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2014 – Dec 31, 2016
-
Chromium 1020 EPA method 200.8
- Result
- 0.0074 mg/l
- Monitoring period
- Jan 1, 2014 – Dec 31, 2016
-
Fluoride 1025 EPA method 300.0
- Result
- 0.358 mg/l
- Monitoring period
- Jan 1, 2014 – Dec 31, 2016
-
Mercury 1035 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2014 – Dec 31, 2016
-
Nickel 1036 EPA method 200.8
- Result
- 0.0006 mg/l
- Monitoring period
- Not recorded
-
Selenium 1045 EPA method 200.8
- Result
- Not detected below 0.0025 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2014 – Dec 31, 2016
-
Antimony, Total 1074 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2014 – Dec 31, 2016
-
Beryllium, Total 1075 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2014 – Dec 31, 2016
-
Thallium, Total 1085 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2014 – Dec 31, 2016
-
- Collected
- Jan 21, 2014 12:10
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 140122-004NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2014 – Dec 31, 2014
-
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
- Jan 23, 2013 03:00
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 130125-001NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2013 – Dec 31, 2013
-
Nitrate-Nitrite 1038 EPA method 353.2
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method 353.2
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method 353.2
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- Sep 19, 2012 12:40
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 201212140251
- Laboratory
- Radiation Safety Engineering
- Monitoring period
- Not recorded
-
Gross Alpha Particle Activity 4109 EPA method 00-02
- Result
- 0.6 pci/l
-
- Collected
- Jun 25, 2012 13:50
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 201208210309
- Laboratory
- Radiation Safety Engineering
- Monitoring period
- Not recorded
-
Gross Alpha Particle Activity 4109 EPA method 00-02
- Result
- 0.6 pci/l 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.
-
- Collected
- Jan 17, 2012 02:30
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 120118-098NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2012
-
Nitrate-Nitrite 1038 EPA method 353.2
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method 353.2
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method 353.2
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- Dec 5, 2011 13:27
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 291684001
- Laboratory
- Gel Laboratories
-
Gross Alpha, Excl. Radon & U 4000
- Result
- Not detected below 2.86 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2011 – Dec 31, 2011
-
Combined Uranium 4006 EPA method 200.8
- Result
- Not detected below 0.067 ug/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2011 – Dec 31, 2011
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.658 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.249 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2011 – Dec 31, 2011
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.658 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2011 – Dec 31, 2011
-
Gross Alpha Particle Activity 4109 EPA method 900.0
- Result
- Not detected below 2.86 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2011 – Dec 31, 2011
-
- Collected
- Sep 28, 2011 13:35
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 287362003
- Laboratory
- Gel Laboratories
-
Gross Alpha, Excl. Radon & U 4000
- Result
- Not detected below 2.85 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2011 – Sep 30, 2011
-
Combined Uranium 4006 EPA method 200.8
- Result
- Not detected below 0.067 ug/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2011 – Sep 30, 2011
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.876 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.876 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2011 – Sep 30, 2011
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.363 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2011 – Sep 30, 2011
-
Gross Alpha Particle Activity 4109 EPA method 900.0
- Result
- Not detected below 2.85 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2011 – Sep 30, 2011
Routine (10).