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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

MS0460007 , Highway 98 East Water Assn.

25 of the 57 analytes this system has been tested for have been detected at least once, across 343 samples on record.

The other 32 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 343 samples on record, detections range from October 15, 2003 to June 2, 2026. 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 Highway 98 East Water Assn., 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 72 of 72 results Aug 17, 2004 Sep 12, 2023
Barium 1010 Inorganic Chemical 29 of 29 results Oct 15, 2003 Feb 14, 2024
Fluoride 1025 Inorganic Chemical 29 of 29 results Oct 15, 2003 Feb 14, 2024
TTHM 2950 Organic Chemical 20 of 20 results Aug 2, 2004 Feb 25, 2026
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 19 of 21 results Aug 20, 2007 Jun 2, 2026
Chromium 1020 Inorganic Chemical 19 of 29 results Oct 15, 2003 Apr 29, 2020
Lead 1030 Inorganic Chemical 17 of 72 results Aug 17, 2004 Sep 12, 2023
Gross Alpha, Incl. Radon & U 4002 Radionuclide 17 of 17 results Mar 13, 2012 Dec 2, 2015
Chloroform 2941 Organic Chemical 15 of 15 results Aug 20, 2007 Feb 25, 2026
Dichloroacetic Acid 2451 Organic Chemical 14 of 15 results Jun 7, 2010 Jun 2, 2026
Trichloroacetic Acid 2452 Organic Chemical 13 of 15 results Jun 7, 2010 Jun 2, 2026
Bromodichloromethane 2943 Organic Chemical 13 of 15 results Aug 20, 2007 Feb 25, 2026
Sodium 1052 Inorganic Chemical 12 of 12 results Sep 23, 2019 Mar 11, 2025
Dibromochloromethane 2944 Organic Chemical 7 of 15 results Mar 6, 2024 Feb 25, 2026
Nickel 1036 Inorganic Chemical 7 of 29 results Dec 12, 2005 May 9, 2017
Xylenes, Total 2955 Organic Chemical 6 of 53 results Nov 2, 2015 Sep 11, 2019
Combined Radium (-226 & -228) 4010 Radionuclide 5 of 17 results Mar 13, 2012 Oct 9, 2012
Radium-226 4020 Radionuclide 5 of 17 results Mar 13, 2012 Oct 9, 2012
Arsenic 1005 Inorganic Chemical 4 of 29 results Dec 12, 2005 Mar 31, 2014
Cadmium 1015 Inorganic Chemical 3 of 29 results Dec 12, 2005 Dec 12, 2005
Selenium 1045 Inorganic Chemical 3 of 29 results Dec 12, 2005 Dec 12, 2005
Sulfate 1055 Inorganic Chemical 3 of 3 results Oct 15, 2003 Oct 15, 2003
Cyanide 1024 Inorganic Chemical 2 of 29 results May 2, 2011 May 2, 2011
Carbon Tetrachloride 2982 Organic Chemical 2 of 53 results Sep 14, 2009 Sep 14, 2009
Monobromoacetic Acid 2453 Organic Chemical 1 of 15 results Sep 16, 2020 Sep 16, 2020

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 221–230 of 343 samples, newest first — collected May 21, 2012 to August 6, 2012. The summary above covers all 343.

25 results from the 10 samples listed here: 9 detected, 16 not detected. Across the whole record it is 337 of 2,113. 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 Highway 98 East Water Assn., every result from 221 to 230 of 343 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
Aug 6, 2012 12:50
Sampling point
TF102
Sample type
Routine
Lab sample
120807-057
Laboratory
Radiation Safety Engineering
0.7 pci/l , sample collected Aug 6, 2012 12:50, sampling point TF102 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
0.5 pci/l , sample collected Aug 6, 2012 12:50, sampling point TF102 Combined Radium (-226 & -228) 4010 Not recorded
0.5 pci/l , sample collected Aug 6, 2012 12:50, sampling point TF102 Radium-226 4020 EPA method 903.1 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.56 pci/l Minimum Reporting Level , sample collected Aug 6, 2012 12:50, sampling point TF102 Radium-228 4030 EPA method 904.0 Jul 1, 2012 – Sep 30, 2012
Collected
Aug 6, 2012 12:50
Sampling point
TF101
Sample type
Routine
Lab sample
120807-083
Laboratory
Radiation Safety Engineering
1 pci/l , sample collected Aug 6, 2012 12:50, sampling point TF101 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.637 pci/l Minimum Reporting Level , sample collected Aug 6, 2012 12:50, sampling point TF101 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.637 pci/l Minimum Reporting Level , sample collected Aug 6, 2012 12:50, sampling point TF101 Radium-226 4020 EPA method 903.1 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.57 pci/l Minimum Reporting Level , sample collected Aug 6, 2012 12:50, sampling point TF101 Radium-228 4030 EPA method 904.0 Jul 1, 2012 – Sep 30, 2012
Collected
Aug 6, 2012 12:50
Sampling point
TF101
Sample type
Routine
Lab sample
120807-083RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 6, 2012 12:50, sampling point TF101 Combined Uranium 4006 EPA method 200.8 Jul 1, 2012 – Sep 30, 2012
Collected
Aug 6, 2012 12:50
Sampling point
TF103
Sample type
Routine
Lab sample
120807-058RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 6, 2012 12:50, sampling point TF103 Combined Uranium 4006 EPA method 200.8 Jul 1, 2012 – Sep 30, 2012
Collected
Aug 6, 2012 12:50
Sampling point
TF102
Sample type
Routine
Lab sample
120807-057RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 6, 2012 12:50, sampling point TF102 Combined Uranium 4006 EPA method 200.8 Jul 1, 2012 – Sep 30, 2012
Collected
May 21, 2012 14:20
Sampling point
TF103
Sample type
Routine
Lab sample
120522-062
Laboratory
Radiation Safety Engineering
0.5 pci/l , sample collected May 21, 2012 14:20, sampling point TF103 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.53 pci/l Minimum Reporting Level , sample collected May 21, 2012 14:20, sampling point TF103 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.464 pci/l Minimum Reporting Level , sample collected May 21, 2012 14:20, sampling point TF103 Radium-226 4020 EPA method 903.1 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.53 pci/l Minimum Reporting Level , sample collected May 21, 2012 14:20, sampling point TF103 Radium-228 4030 EPA method 904.0 Apr 1, 2012 – Jun 30, 2012
Collected
May 21, 2012 14:20
Sampling point
TF102
Sample type
Routine
Lab sample
120522-061
Laboratory
Radiation Safety Engineering
0.7 pci/l , sample collected May 21, 2012 14:20, sampling point TF102 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
0.5 pci/l , sample collected May 21, 2012 14:20, sampling point TF102 Combined Radium (-226 & -228) 4010 Not recorded
0.5 pci/l , sample collected May 21, 2012 14:20, sampling point TF102 Radium-226 4020 EPA method 903.1 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.56 pci/l Minimum Reporting Level , sample collected May 21, 2012 14:20, sampling point TF102 Radium-228 4030 EPA method 904.0 Apr 1, 2012 – Jun 30, 2012
Collected
May 21, 2012 14:20
Sampling point
TF101
Sample type
Routine
Lab sample
120522-091
Laboratory
Radiation Safety Engineering
1 pci/l , sample collected May 21, 2012 14:20, sampling point TF101 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.637 pci/l Minimum Reporting Level , sample collected May 21, 2012 14:20, sampling point TF101 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.637 pci/l Minimum Reporting Level , sample collected May 21, 2012 14:20, sampling point TF101 Radium-226 4020 EPA method 903.1 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.57 pci/l Minimum Reporting Level , sample collected May 21, 2012 14:20, sampling point TF101 Radium-228 4030 EPA method 904.0 Apr 1, 2012 – Jun 30, 2012
Collected
May 21, 2012 14:20
Sampling point
TF101
Sample type
Routine
Lab sample
120522-091RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 21, 2012 14:20, sampling point TF101 Combined Uranium 4006 EPA method 200.8 Apr 1, 2012 – Jun 30, 2012
Collected
May 21, 2012 14:20
Sampling point
TF103
Sample type
Routine
Lab sample
120522-062RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 21, 2012 14:20, sampling point TF103 Combined Uranium 4006 EPA method 200.8 Apr 1, 2012 – Jun 30, 2012

Routine (10).