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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 61–70 of 343 samples, newest first — collected September 21, 2021 to March 1, 2022. The summary above covers all 343.

58 results from the 10 samples listed here: 4 detected, 54 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 61 to 70 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
Mar 1, 2022 13:15
Sampling point
TF102
Sample type
Routine
Lab sample
NA-220302-011
Laboratory
MSDH Lab
53.2 mg/l , sample collected Mar 1, 2022 13:15, sampling point TF102 Sodium 1052 EPA method 200.7 Not recorded
Collected
Mar 1, 2022 13:05
Sampling point
TF101
Sample type
Routine
Lab sample
NA-220302-010
Laboratory
MSDH Lab
52.4 mg/l , sample collected Mar 1, 2022 13:05, sampling point TF101 Sodium 1052 EPA method 200.7 Not recorded
Collected
Mar 1, 2022 13:00
Sampling point
TF104 Treatment Facility TF104
Sample type
Routine
Lab sample
NI-220302-013
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 1, 2022 13:00, 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 Mar 1, 2022 13:00, 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 Mar 1, 2022 13:00, sampling point TF104 Nitrite 1041 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Collected
Mar 1, 2022 13:10
Sampling point
TF103
Sample type
Routine
Lab sample
NI-220302-012
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 1, 2022 13:10, 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 Mar 1, 2022 13:10, 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 Mar 1, 2022 13:10, sampling point TF103 Nitrite 1041 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Collected
Mar 1, 2022 13:15
Sampling point
TF102
Sample type
Routine
Lab sample
NI-220302-011
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 1, 2022 13:15, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 1, 2022 13:15, sampling point TF102 Nitrate 1040 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 1, 2022 13:15, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Collected
Mar 1, 2022 05:00
Sampling point
TF101
Sample type
Routine
Lab sample
NI-220302-010
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 1, 2022 05:00, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 1, 2022 05:00, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 1, 2022 05:00, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Collected
Jan 11, 2022 13:05
Sampling point
TF104 Treatment Facility TF104
Sample type
Routine
Lab sample
VO-220112-007
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 11, 2022 13:05, sampling point TF104 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2022 – Mar 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 11, 2022 13:05, sampling point TF104 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2022 – Mar 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 11, 2022 13:05, sampling point TF104 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2022 – Mar 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 11, 2022 13:05, sampling point TF104 Dichloromethane 2964 EPA method 524.2 Jan 1, 2022 – Mar 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 11, 2022 13:05, sampling point TF104 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2022 – Mar 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 11, 2022 13:05, sampling point TF104 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2022 – Mar 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 11, 2022 13:05, sampling point TF104 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2022 – Mar 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 11, 2022 13:05, sampling point TF104 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2022 – Mar 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 11, 2022 13:05, sampling point TF104 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2022 – Mar 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 11, 2022 13:05, sampling point TF104 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2022 – Mar 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 11, 2022 13:05, sampling point TF104 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2022 – Mar 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 11, 2022 13:05, sampling point TF104 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2022 – Mar 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 11, 2022 13:05, sampling point TF104 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2022 – Mar 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 11, 2022 13:05, sampling point TF104 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2022 – Mar 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 11, 2022 13:05, sampling point TF104 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2022 – Mar 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 11, 2022 13:05, sampling point TF104 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2022 – Mar 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 11, 2022 13:05, sampling point TF104 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2022 – Mar 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 11, 2022 13:05, sampling point TF104 Benzene 2990 EPA method 524.2 Jan 1, 2022 – Mar 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 11, 2022 13:05, sampling point TF104 Toluene 2991 EPA method 524.2 Jan 1, 2022 – Mar 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 11, 2022 13:05, sampling point TF104 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2022 – Mar 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 11, 2022 13:05, sampling point TF104 Styrene 2996 EPA method 524.2 Jan 1, 2022 – Mar 31, 2022
Collected
Oct 19, 2021 13:15
Sampling point
TF104 Treatment Facility TF104
Sample type
Routine
Lab sample
VO-211020-005
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 19, 2021 13:15, sampling point TF104 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 19, 2021 13:15, sampling point TF104 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 19, 2021 13:15, sampling point TF104 Xylenes, Total 2955 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 19, 2021 13:15, sampling point TF104 Dichloromethane 2964 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 19, 2021 13:15, sampling point TF104 O-Dichlorobenzene 2968 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 19, 2021 13:15, sampling point TF104 P-Dichlorobenzene 2969 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 19, 2021 13:15, sampling point TF104 Vinyl Chloride 2976 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 19, 2021 13:15, sampling point TF104 1,1-Dichloroethylene 2977 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 19, 2021 13:15, sampling point TF104 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 19, 2021 13:15, sampling point TF104 1,2-Dichloroethane 2980 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 19, 2021 13:15, sampling point TF104 1,1,1-Trichloroethane 2981 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 19, 2021 13:15, sampling point TF104 Carbon Tetrachloride 2982 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 19, 2021 13:15, sampling point TF104 1,2-Dichloropropane 2983 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 19, 2021 13:15, sampling point TF104 Trichloroethylene 2984 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 19, 2021 13:15, sampling point TF104 1,1,2-Trichloroethane 2985 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 19, 2021 13:15, sampling point TF104 Tetrachloroethylene 2987 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 19, 2021 13:15, sampling point TF104 Chlorobenzene 2989 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 19, 2021 13:15, sampling point TF104 Benzene 2990 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 19, 2021 13:15, sampling point TF104 Toluene 2991 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 19, 2021 13:15, sampling point TF104 Ethylbenzene 2992 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 19, 2021 13:15, sampling point TF104 Styrene 2996 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
Collected
Sep 21, 2021 13:10
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
HA-210922-013
Laboratory
MSDH Lab
4.61 ug/l , sample collected Sep 21, 2021 13:10, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2021 – Dec 31, 2021
Collected
Sep 21, 2021 13:00
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
TH-210922-013
Laboratory
MSDH Lab
3.13 ug/l , sample collected Sep 21, 2021 13:00, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021

Routine (10).