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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

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.

Every analyte ever detected for Lamont Water Corporation, 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 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 111–120 of 165 samples, newest first — collected May 19, 2004 to October 5, 2004. The summary above covers all 165.

56 results from the 10 samples listed here: 6 detected, 50 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.

Chemical and radiological sample results for Lamont Water Corporation, every result from 111 to 120 of 165 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
Oct 5, 2004
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
041006-012VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Oct 5, 2004, sampling point TF101 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Oct 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Oct 5, 2004, sampling point TF101 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Oct 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Oct 5, 2004, sampling point TF101 Xylenes, Total 2955 EPA method 524.2 Oct 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Oct 5, 2004, sampling point TF101 Dichloromethane 2964 EPA method 524.2 Oct 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Oct 5, 2004, sampling point TF101 O-Dichlorobenzene 2968 EPA method 524.2 Oct 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Oct 5, 2004, sampling point TF101 P-Dichlorobenzene 2969 EPA method 524.2 Oct 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Oct 5, 2004, sampling point TF101 Vinyl Chloride 2976 EPA method 524.2 Oct 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Oct 5, 2004, sampling point TF101 1,1-Dichloroethylene 2977 EPA method 524.2 Oct 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Oct 5, 2004, sampling point TF101 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Oct 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Oct 5, 2004, sampling point TF101 1,2-Dichloroethane 2980 EPA method 524.2 Oct 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Oct 5, 2004, sampling point TF101 1,1,1-Trichloroethane 2981 EPA method 524.2 Oct 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Oct 5, 2004, sampling point TF101 Carbon Tetrachloride 2982 EPA method 524.2 Oct 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Oct 5, 2004, sampling point TF101 1,2-Dichloropropane 2983 EPA method 524.2 Oct 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Oct 5, 2004, sampling point TF101 Trichloroethylene 2984 EPA method 524.2 Oct 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Oct 5, 2004, sampling point TF101 1,1,2-Trichloroethane 2985 EPA method 524.2 Oct 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Oct 5, 2004, sampling point TF101 Tetrachloroethylene 2987 EPA method 524.2 Oct 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Oct 5, 2004, sampling point TF101 Chlorobenzene 2989 EPA method 524.2 Oct 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Oct 5, 2004, sampling point TF101 Benzene 2990 EPA method 524.2 Oct 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Oct 5, 2004, sampling point TF101 Toluene 2991 EPA method 524.2 Oct 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Oct 5, 2004, sampling point TF101 Ethylbenzene 2992 EPA method 524.2 Oct 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Oct 5, 2004, sampling point TF101 Styrene 2996 EPA method 524.2 Oct 1, 2004 – Dec 31, 2004
Collected
Sep 21, 2004
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
040922-169PB
Laboratory
MSDH Lab
0.0075 mg/l , sample collected Sep 21, 2004, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2003 – Dec 31, 2005
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 21, 2004, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2003 – Dec 31, 2005
Collected
Sep 21, 2004
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
040922-168PB
Laboratory
MSDH Lab
0.0016 mg/l , sample collected Sep 21, 2004, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2003 – Dec 31, 2005
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 21, 2004, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2003 – Dec 31, 2005
Collected
Sep 21, 2004
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
040922-170PB
Laboratory
MSDH Lab
0.0178 mg/l , sample collected Sep 21, 2004, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2003 – Dec 31, 2005
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 21, 2004, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2003 – Dec 31, 2005
Collected
Sep 21, 2004
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
040922-165PB
Laboratory
MSDH Lab
0.1893 mg/l , sample collected Sep 21, 2004, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2003 – Dec 31, 2005
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 21, 2004, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2003 – Dec 31, 2005
Collected
Sep 21, 2004
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
040922-167PB
Laboratory
MSDH Lab
0.0826 mg/l , sample collected Sep 21, 2004, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2003 – Dec 31, 2005
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 21, 2004, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2003 – Dec 31, 2005
Collected
Sep 21, 2004
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
040922-166PB
Laboratory
MSDH Lab
0.0106 mg/l , sample collected Sep 21, 2004, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2003 – Dec 31, 2005
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 21, 2004, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2003 – Dec 31, 2005
Collected
Jul 7, 2004
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
040708-004VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 7, 2004, sampling point TF101 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 7, 2004, sampling point TF101 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 7, 2004, sampling point TF101 Xylenes, Total 2955 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 7, 2004, sampling point TF101 Dichloromethane 2964 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 7, 2004, sampling point TF101 O-Dichlorobenzene 2968 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 7, 2004, sampling point TF101 P-Dichlorobenzene 2969 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 7, 2004, sampling point TF101 Vinyl Chloride 2976 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 7, 2004, sampling point TF101 1,1-Dichloroethylene 2977 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 7, 2004, sampling point TF101 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 7, 2004, sampling point TF101 1,2-Dichloroethane 2980 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 7, 2004, sampling point TF101 1,1,1-Trichloroethane 2981 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 7, 2004, sampling point TF101 Carbon Tetrachloride 2982 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 7, 2004, sampling point TF101 1,2-Dichloropropane 2983 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 7, 2004, sampling point TF101 Trichloroethylene 2984 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 7, 2004, sampling point TF101 1,1,2-Trichloroethane 2985 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 7, 2004, sampling point TF101 Tetrachloroethylene 2987 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 7, 2004, sampling point TF101 Chlorobenzene 2989 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 7, 2004, sampling point TF101 Benzene 2990 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 7, 2004, sampling point TF101 Toluene 2991 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 7, 2004, sampling point TF101 Ethylbenzene 2992 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 7, 2004, sampling point TF101 Styrene 2996 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Collected
May 19, 2004
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
040520-013TH
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 19, 2004, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2004 – Dec 31, 2004
Collected
May 19, 2004
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
040520-013HA
Laboratory
MSDH Lab
Not detected below 0.01 mg/l Minimum Reporting Level , sample collected May 19, 2004, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2004 – Dec 31, 2004

Routine (10).