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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

MS0400005 , Lena Water Association

33 of the 70 analytes this system has been tested for have been detected at least once, across 224 samples on record.

The other 37 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 224 samples on record, detections range from October 8, 2003 to March 10, 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 Lena Water Association, 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 32 of 32 results Aug 2, 2007 Aug 30, 2023
Lead 1030 Inorganic Chemical 29 of 32 results Aug 2, 2007 Aug 30, 2023
Barium 1010 Inorganic Chemical 19 of 19 results Oct 8, 2003 Mar 10, 2025
Nickel 1036 Inorganic Chemical 10 of 19 results Apr 6, 2005 Mar 10, 2025
Chromium 1020 Inorganic Chemical 10 of 19 results Nov 24, 2003 Apr 22, 2015
Gross Alpha, Incl. Radon & U 4002 Radionuclide 10 of 10 results Dec 13, 2011 Aug 6, 2012
Sodium 1052 Inorganic Chemical 6 of 6 results Jun 20, 2008 Feb 12, 2025
TTHM 2950 Organic Chemical 6 of 6 results Aug 2, 2007 Feb 29, 2024
Xylenes, Total 2955 Organic Chemical 6 of 65 results May 11, 2006 Mar 23, 2023
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 4 of 6 results Jun 21, 2007 Feb 29, 2024
Chloroform 2941 Organic Chemical 3 of 5 results Jul 17, 2013 Sep 19, 2018
Nitrate-Nitrite 1038 Inorganic Chemical 3 of 53 results Dec 1, 2011 Mar 6, 2013
Nitrite 1041 Inorganic Chemical 3 of 53 results Dec 1, 2011 Mar 6, 2013
Ethylbenzene 2992 Organic Chemical 2 of 65 results Feb 15, 2022 Feb 15, 2022
Sulfate 1055 Inorganic Chemical 2 of 3 results Oct 8, 2003 Nov 24, 2003
Fluoride 1025 Inorganic Chemical 1 of 20 results Apr 3, 2019 Apr 3, 2019
Dichloroacetic Acid 2451 Organic Chemical 1 of 4 results Aug 17, 2015 Aug 17, 2015
Cadmium 1015 Inorganic Chemical 1 of 19 results Apr 22, 2015 Apr 22, 2015
Monochloroacetic Acid 2450 Organic Chemical 1 of 4 results Jul 17, 2013 Jul 17, 2013
Monobromoacetic Acid 2453 Organic Chemical 1 of 4 results Jul 17, 2013 Jul 17, 2013
Calcium 1016 Inorganic Chemical 1 of 1 result Jun 20, 2008 Jun 20, 2008
Chloride 1017 Inorganic Chemical 1 of 1 result Jun 20, 2008 Jun 20, 2008
Iron 1028 Inorganic Chemical 1 of 1 result Jun 20, 2008 Jun 20, 2008
Magnesium 1031 Inorganic Chemical 1 of 1 result Jun 20, 2008 Jun 20, 2008
Manganese 1032 Inorganic Chemical 1 of 1 result Jun 20, 2008 Jun 20, 2008
Residue, Total, Filterable 1057 Water Quality 1 of 1 result Jun 20, 2008 Jun 20, 2008
Carbon Dioxide 1901 Water Quality 1 of 1 result Jun 20, 2008 Jun 20, 2008
Hardness, Total (As Caco3) 1915 Water Quality 1 of 1 result Jun 20, 2008 Jun 20, 2008
PH 1925 Water Quality 1 of 1 result Jun 20, 2008 Jun 20, 2008
Alkalinity, Total 1927 Water Quality 1 of 1 result Jun 20, 2008 Jun 20, 2008
Iron, Field Result FEFD Inorganic Chemical 1 of 1 result Jun 20, 2008 Jun 20, 2008
Calculated Sodium NACA Water Quality 1 of 1 result Jun 20, 2008 Jun 20, 2008
PH, Field Result PHFD Water Quality 1 of 1 result Jun 20, 2008 Jun 20, 2008

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 31–40 of 224 samples, newest first — collected September 14, 2021 to May 11, 2022. The summary above covers all 224.

74 results from the 10 samples listed here: 6 detected, 68 not detected. Across the whole record it is 163 of 1,939. 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 Lena Water Association, every result from 31 to 40 of 224 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
May 11, 2022 13:30
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
CN-220512-021
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected May 11, 2022 13:30, sampling point TF103 Cyanide 1024 EPA method QC10204001X Jan 1, 2020 – Dec 31, 2022
Collected
Feb 15, 2022 14:40
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
VO-220216-022
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2022 14:40, sampling point TF104 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2022 14:40, sampling point TF104 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
4.44 ug/l , sample collected Feb 15, 2022 14:40, sampling point TF104 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2022 14:40, sampling point TF104 Dichloromethane 2964 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2022 14:40, sampling point TF104 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2022 14:40, sampling point TF104 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2022 14:40, sampling point TF104 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2022 14:40, sampling point TF104 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2022 14:40, sampling point TF104 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2022 14:40, sampling point TF104 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2022 14:40, sampling point TF104 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2022 14:40, sampling point TF104 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2022 14:40, sampling point TF104 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2022 14:40, sampling point TF104 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2022 14:40, sampling point TF104 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2022 14:40, sampling point TF104 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2022 14:40, sampling point TF104 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2022 14:40, sampling point TF104 Benzene 2990 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2022 14:40, sampling point TF104 Toluene 2991 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
0.768 ug/l , sample collected Feb 15, 2022 14:40, sampling point TF104 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2022 14:40, sampling point TF104 Styrene 2996 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Collected
Feb 15, 2022 14:40
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
VO-220216-021
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2022 14:40, sampling point TF103 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2022 14:40, sampling point TF103 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
3.99 ug/l , sample collected Feb 15, 2022 14:40, sampling point TF103 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2022 14:40, sampling point TF103 Dichloromethane 2964 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2022 14:40, sampling point TF103 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2022 14:40, sampling point TF103 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2022 14:40, sampling point TF103 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2022 14:40, sampling point TF103 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2022 14:40, sampling point TF103 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2022 14:40, sampling point TF103 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2022 14:40, sampling point TF103 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2022 14:40, sampling point TF103 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2022 14:40, sampling point TF103 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2022 14:40, sampling point TF103 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2022 14:40, sampling point TF103 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2022 14:40, sampling point TF103 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2022 14:40, sampling point TF103 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2022 14:40, sampling point TF103 Benzene 2990 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2022 14:40, sampling point TF103 Toluene 2991 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
0.685 ug/l , sample collected Feb 15, 2022 14:40, sampling point TF103 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2022 14:40, sampling point TF103 Styrene 2996 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Collected
Feb 15, 2022 14:10
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
NA-220216-004
Laboratory
MSDH Lab
33.4 mg/l , sample collected Feb 15, 2022 14:10, sampling point TF104 Sodium 1052 EPA method 200.7 Not recorded
Collected
Feb 15, 2022 14:10
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
NA-220216-003
Laboratory
MSDH Lab
33.9 mg/l , sample collected Feb 15, 2022 14:10, sampling point TF103 Sodium 1052 EPA method 200.7 Not recorded
Collected
Feb 15, 2022 14:10
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
NI-220216-001
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 15, 2022 14:10, sampling point TF104 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 15, 2022 14:10, sampling point TF104 Nitrate 1040 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 15, 2022 14:10, sampling point TF104 Nitrite 1041 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Collected
Feb 15, 2022 14:10
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
NI-220216-002
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 15, 2022 14:10, sampling point TF103 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 15, 2022 14:10, sampling point TF103 Nitrate 1040 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 15, 2022 14:10, sampling point TF103 Nitrite 1041 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Collected
Oct 12, 2021 15:15
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
RU-211013-106
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 12, 2021 15:15, sampling point TF104 Combined Uranium 4006 EPA method 200.8 Jan 1, 2013 – Dec 31, 2021
Collected
Oct 12, 2021 15:00
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
RU-211013-105
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 12, 2021 15:00, sampling point TF103 Combined Uranium 4006 EPA method 200.8 Jan 1, 2013 – Dec 31, 2021
Collected
Sep 14, 2021 14:35
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
VO-210915-016
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2021 14:35, sampling point TF104 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2021 14:35, sampling point TF104 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2021 14:35, sampling point TF104 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2021 14:35, sampling point TF104 Dichloromethane 2964 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2021 14:35, sampling point TF104 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2021 14:35, sampling point TF104 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2021 14:35, sampling point TF104 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2021 14:35, sampling point TF104 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2021 14:35, sampling point TF104 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2021 14:35, sampling point TF104 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2021 14:35, sampling point TF104 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2021 14:35, sampling point TF104 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2021 14:35, sampling point TF104 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2021 14:35, sampling point TF104 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2021 14:35, sampling point TF104 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2021 14:35, sampling point TF104 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2021 14:35, sampling point TF104 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2021 14:35, sampling point TF104 Benzene 2990 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2021 14:35, sampling point TF104 Toluene 2991 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2021 14:35, sampling point TF104 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2021 14:35, sampling point TF104 Styrene 2996 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023

Routine (10).