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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 11–20 of 224 samples, newest first — collected August 30, 2023 to February 12, 2025. The summary above covers all 224.

18 results from the 10 samples listed here: 12 detected, 6 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.

We withheld the location of 5 sampling points below. The location on record identifies a private home, and we do not publish those. That is our decision, not the agency’s. The sampling point, its type and every result taken there are published unchanged.

Chemical and radiological sample results for Lena Water Association, every result from 11 to 20 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
Feb 12, 2025 12:25
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
NA-250213-011
Laboratory
MSDH Lab
36 mg/l , sample collected Feb 12, 2025 12:25, sampling point TF104 Sodium 1052 EPA method 200.7 Jan 1, 2023 – Dec 31, 2025
Collected
Feb 12, 2025 12:20
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
NA-250213-010
Laboratory
MSDH Lab
36.1 mg/l , sample collected Feb 12, 2025 12:20, sampling point TF103 Sodium 1052 EPA method 200.7 Jan 1, 2023 – Dec 31, 2025
Collected
Mar 26, 2024 15:30
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
NI-240327-082
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 26, 2024 15:30, sampling point TF103 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 26, 2024 15:30, sampling point TF103 Nitrate 1040 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 26, 2024 15:30, sampling point TF103 Nitrite 1041 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Collected
Mar 26, 2024 15:35
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
NI-240327-081
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 26, 2024 15:35, sampling point TF104 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 26, 2024 15:35, sampling point TF104 Nitrate 1040 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 26, 2024 15:35, sampling point TF104 Nitrite 1041 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Collected
Feb 29, 2024 15:00
Sampling point
SMD Location withheld
Sample type
Routine
Lab sample
TH-240301-002
Laboratory
MSDH Lab
8.02 ug/l , sample collected Feb 29, 2024 15:00, sampling point SMD TTHM 2950 EPA method 524.2 Jan 1, 2023 – Dec 31, 2025
Collected
Feb 29, 2024 15:00
Sampling point
SMD Location withheld
Sample type
Routine
Lab sample
HA-240301-002
Laboratory
MSDH Lab
5.97 ug/l , sample collected Feb 29, 2024 15:00, sampling point SMD Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2023 – Dec 31, 2025
Collected
Aug 30, 2023 05:55
Sampling point
LC0005 Location withheld
Sample type
Routine
Lab sample
PB-230901-058
Laboratory
MSDH Lab
0.0493 mg/l , sample collected Aug 30, 2023 05:55, sampling point LC0005 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.8 ug/l , sample collected Aug 30, 2023 05:55, sampling point LC0005 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 30, 2023 05:00
Sampling point
LC0004 Location withheld
Sample type
Routine
Lab sample
PB-230901-057
Laboratory
MSDH Lab
0.0174 mg/l , sample collected Aug 30, 2023 05:00, sampling point LC0004 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.8 ug/l , sample collected Aug 30, 2023 05:00, sampling point LC0004 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 30, 2023 07:00
Sampling point
LC0003 Location withheld
Sample type
Routine
Lab sample
PB-230901-056
Laboratory
MSDH Lab
0.0913 mg/l , sample collected Aug 30, 2023 07:00, sampling point LC0003 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
1.4 ug/l , sample collected Aug 30, 2023 07:00, sampling point LC0003 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 30, 2023 07:30
Sampling point
LC0002 Location withheld
Sample type
Routine
Lab sample
PB-230901-055
Laboratory
MSDH Lab
0.0586 mg/l , sample collected Aug 30, 2023 07:30, sampling point LC0002 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
1.2 ug/l , sample collected Aug 30, 2023 07:30, sampling point LC0002 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023

Routine (10).