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 121–130 of 165 samples, newest first — collected September 19, 2000 to May 5, 2004. The summary above covers all 165.
58 results from the 10 samples listed here: 13 detected, 45 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 |
|---|---|---|
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected May 5, 2004, sampling point TF101 | Nitrate-Nitrite 1038 EPA method 353.2 | Jan 1, 2004 – Dec 31, 2004 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected May 5, 2004, sampling point TF101 | Nitrate 1040 EPA method 353.2 | Jan 1, 2004 – Dec 31, 2004 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected May 5, 2004, sampling point TF101 | Nitrite 1041 EPA method 353.2 | Jan 1, 2004 – Dec 31, 2004 |
|
||
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jan 12, 2004, sampling point TF101 | Arsenic 1005 EPA method 200.8 | Jan 1, 2002 – Dec 31, 2004 |
| 0.004 mg/l , sample collected Jan 12, 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 Jan 12, 2004, sampling point TF101 | Cadmium 1015 EPA method 200.8 | Jan 1, 2002 – Dec 31, 2004 |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jan 12, 2004, sampling point TF101 | Chromium 1020 EPA method 200.8 | Jan 1, 2002 – Dec 31, 2004 |
| 0.416 mg/l , sample collected Jan 12, 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 Jan 12, 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 Jan 12, 2004, sampling point TF101 | Nickel 1036 EPA method 200.8 | Not recorded |
| 0.001 mg/l , sample collected Jan 12, 2004, sampling point TF101 | Selenium 1045 EPA method 200.8 | Jan 1, 2002 – Dec 31, 2004 |
| Not detected below 2.5 mg/l Minimum Reporting Level , sample collected Jan 12, 2004, sampling point TF101 | Sulfate 1055 EPA method 300.0 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jan 12, 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 Jan 12, 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 Jan 12, 2004, sampling point TF101 | Thallium, Total 1085 EPA method 200.8 | Jan 1, 2002 – Dec 31, 2004 |
|
||
| Not detected below 0.01 mg/l Minimum Reporting Level , sample collected Jan 12, 2004, sampling point TF101 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2002 – Dec 31, 2004 |
|
||
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 7, 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 Jan 7, 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 Jan 7, 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 Jan 7, 2004, sampling point TF101 | Dichloromethane 2964 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 7, 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 Jan 7, 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 Jan 7, 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 Jan 7, 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 Jan 7, 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 Jan 7, 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 Jan 7, 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 Jan 7, 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 Jan 7, 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 Jan 7, 2004, sampling point TF101 | Trichloroethylene 2984 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 7, 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 Jan 7, 2004, sampling point TF101 | Tetrachloroethylene 2987 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 7, 2004, sampling point TF101 | Chlorobenzene 2989 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 7, 2004, sampling point TF101 | Benzene 2990 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 7, 2004, sampling point TF101 | Toluene 2991 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 7, 2004, sampling point TF101 | Ethylbenzene 2992 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 7, 2004, sampling point TF101 | Styrene 2996 | Jan 1, 2004 – Mar 31, 2004 |
|
||
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jan 29, 2002, sampling point TF101 | Arsenic 1005 EPA method 200.8 | Not recorded |
| 0.005 mg/l , sample collected Jan 29, 2002, sampling point TF101 | Barium 1010 EPA method 200.8 | Not recorded |
| Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Jan 29, 2002, sampling point TF101 | Cadmium 1015 EPA method 200.8 | Not recorded |
| 0.003 mg/l , sample collected Jan 29, 2002, sampling point TF101 | Chromium 1020 EPA method 200.8 | Not recorded |
| 0.236 mg/l , sample collected Jan 29, 2002, sampling point TF101 | Fluoride 1025 EPA method 300.0 | Not recorded |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 29, 2002, sampling point TF101 | Mercury 1035 EPA method 200.8 | Not recorded |
| Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Jan 29, 2002, sampling point TF101 | Nickel 1036 EPA method 200.8 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jan 29, 2002, sampling point TF101 | Selenium 1045 EPA method 200.8 | Not recorded |
| Not detected below 2.5 mg/l Minimum Reporting Level , sample collected Jan 29, 2002, sampling point TF101 | Sulfate 1055 EPA method 300.0 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jan 29, 2002, sampling point TF101 | Antimony, Total 1074 EPA method 200.8 | Not recorded |
| Not detected below 0.0003 mg/l Minimum Reporting Level , sample collected Jan 29, 2002, sampling point TF101 | Beryllium, Total 1075 EPA method 200.8 | Not recorded |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 29, 2002, sampling point TF101 | Thallium, Total 1085 EPA method 200.8 | Not recorded |
|
||
| Not detected below 0.01 mg/l Minimum Reporting Level , sample collected Jan 22, 2002, sampling point TF101 | Cyanide 1024 EPA method 335.4 | Jan 1, 2002 – Dec 31, 2004 |
|
||
| 0.152 mg/l , sample collected Sep 19, 2000, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.001 mg/l , sample collected Sep 19, 2000, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.006 mg/l , sample collected Sep 19, 2000, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.001 mg/l , sample collected Sep 19, 2000, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.002 mg/l , sample collected Sep 19, 2000, sampling point DS000 | Copper, Free 1022 | Not recorded |
| Not detected below 0.001 mg/l Method Detection Limit , sample collected Sep 19, 2000, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.01 mg/l , sample collected Sep 19, 2000, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.002 mg/l , sample collected Sep 19, 2000, sampling point DS000 | Lead 1030 | Not recorded |
-
- Collected
- May 5, 2004
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 040506-042NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2004 – Dec 31, 2004
-
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
- Jan 12, 2004
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 040113-124IN
- Laboratory
- MSDH Lab
-
Arsenic 1005 EPA method 200.8
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Barium 1010 EPA method 200.8
- Result
- 0.004 mg/l
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Cadmium 1015 EPA method 200.8
- Result
- Not detected below 0.0001 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Chromium 1020 EPA method 200.8
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Fluoride 1025 EPA method 300.0
- Result
- 0.416 mg/l
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Mercury 1035 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Nickel 1036 EPA method 200.8
- Result
- Not detected below 0.005 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Selenium 1045 EPA method 200.8
- Result
- 0.001 mg/l
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Sulfate 1055 EPA method 300.0
- Result
- Not detected below 2.5 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Antimony, Total 1074 EPA method 200.8
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Beryllium, Total 1075 EPA method 200.8
- Result
- Not detected below 0.0003 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Thallium, Total 1085 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
- Collected
- Jan 12, 2004
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 040113-037CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.01 mg/l Minimum Reporting Level
-
- Collected
- Jan 7, 2004
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 040108-023VO
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2004 – Mar 31, 2004
-
1,2,4-Trichlorobenzene 2378
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
Cis-1,2-Dichloroethylene 2380
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
Xylenes, Total 2955
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
Dichloromethane 2964
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
O-Dichlorobenzene 2968
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
P-Dichlorobenzene 2969
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
Vinyl Chloride 2976
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
1,1-Dichloroethylene 2977
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
Trans-1,2-Dichloroethylene 2979
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
1,2-Dichloroethane 2980
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
1,1,1-Trichloroethane 2981
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
Carbon Tetrachloride 2982
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
1,2-Dichloropropane 2983
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
Trichloroethylene 2984
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
1,1,2-Trichloroethane 2985
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
Tetrachloroethylene 2987
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
Chlorobenzene 2989
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
Benzene 2990
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
Toluene 2991
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
Ethylbenzene 2992
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
Styrene 2996
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
- Collected
- Jan 29, 2002
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 020130-018IN
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Arsenic 1005 EPA method 200.8
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
-
Barium 1010 EPA method 200.8
- Result
- 0.005 mg/l
-
Cadmium 1015 EPA method 200.8
- Result
- Not detected below 0.0001 mg/l Minimum Reporting Level
-
Chromium 1020 EPA method 200.8
- Result
- 0.003 mg/l
-
Fluoride 1025 EPA method 300.0
- Result
- 0.236 mg/l
-
Mercury 1035 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
Nickel 1036 EPA method 200.8
- Result
- Not detected below 0.005 mg/l Minimum Reporting Level
-
Selenium 1045 EPA method 200.8
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
-
Sulfate 1055 EPA method 300.0
- Result
- Not detected below 2.5 mg/l Minimum Reporting Level
-
Antimony, Total 1074 EPA method 200.8
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
-
Beryllium, Total 1075 EPA method 200.8
- Result
- Not detected below 0.0003 mg/l Minimum Reporting Level
-
Thallium, Total 1085 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jan 22, 2002
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 020123-001CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Cyanide 1024 EPA method 335.4
- Result
- Not detected below 0.01 mg/l Minimum Reporting Level
-
- Collected
- Sep 19, 2000
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 000920-069L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.152 mg/l
-
Lead 1030
- Result
- 0.001 mg/l
-
- Collected
- Sep 19, 2000
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 000920-068L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.006 mg/l
-
Lead 1030
- Result
- 0.001 mg/l
-
- Collected
- Sep 19, 2000
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 000920-067L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.002 mg/l
-
Lead 1030
- Result
- Not detected below 0.001 mg/l Method Detection Limit
-
- Collected
- Sep 19, 2000
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 000920-066L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.01 mg/l
-
Lead 1030
- Result
- 0.002 mg/l
Routine (10).