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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

MS0240272 , HCUA-East

24 of the 55 analytes this system has been tested for have been detected at least once, across 320 samples on record.

The other 31 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 320 samples on record, detections range from March 9, 2015 to June 24, 2026. These figures cover the whole record; the list of samples further down is narrowed.

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 HCUA-East, 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
Xylenes, Total 2955 Organic Chemical 56 of 146 results Mar 12, 2015 Mar 6, 2024
Barium 1010 Inorganic Chemical 21 of 21 results Mar 9, 2015 Feb 12, 2025
Fluoride 1025 Inorganic Chemical 21 of 21 results Mar 9, 2015 Feb 12, 2025
Sodium 1052 Inorganic Chemical 15 of 15 results Sep 18, 2019 Feb 6, 2024
Ethylbenzene 2992 Organic Chemical 15 of 146 results Mar 12, 2015 Oct 29, 2019
Copper, Free 1022 Inorganic Chemical 13 of 15 results Mar 12, 2025 Jun 24, 2026
Chromium 1020 Inorganic Chemical 10 of 21 results Mar 9, 2015 Feb 12, 2025
Carbon Tetrachloride 2982 Organic Chemical 9 of 146 results Apr 21, 2015 Oct 3, 2023
TTHM 2950 Organic Chemical 8 of 8 results Mar 27, 2024 Jun 23, 2026
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 7 of 7 results Mar 27, 2024 Jun 23, 2026
Chloroform 2941 Organic Chemical 5 of 5 results Dec 16, 2025 Jun 23, 2026
Bromodichloromethane 2943 Organic Chemical 5 of 5 results Dec 16, 2025 Jun 23, 2026
Dibromochloromethane 2944 Organic Chemical 5 of 5 results Dec 16, 2025 Jun 23, 2026
Dichloroacetic Acid 2451 Organic Chemical 4 of 4 results Feb 24, 2026 Jun 23, 2026
Trichloroacetic Acid 2452 Organic Chemical 4 of 4 results Feb 24, 2026 Jun 23, 2026
Gross Alpha, Incl. Radon & U 4002 Radionuclide 4 of 10 results Sep 14, 2015 Dec 15, 2015
Combined Radium (-226 & -228) 4010 Radionuclide 3 of 10 results Dec 15, 2015 Dec 15, 2015
Radium-226 4020 Radionuclide 3 of 10 results Dec 15, 2015 Dec 15, 2015
Arsenic 1005 Inorganic Chemical 2 of 21 results Oct 23, 2018 Feb 12, 2025
Nickel 1036 Inorganic Chemical 2 of 21 results Oct 23, 2018 Feb 12, 2025
Nitrate-Nitrite 1038 Inorganic Chemical 2 of 57 results Feb 6, 2024 Feb 6, 2024
Dichloromethane 2964 Organic Chemical 2 of 146 results Aug 1, 2017 Oct 21, 2020
Nitrate 1040 Inorganic Chemical 1 of 57 results Feb 6, 2024 Feb 6, 2024
Nitrite 1041 Inorganic Chemical 1 of 57 results Feb 6, 2024 Feb 6, 2024

Showing samples collected between September 26, 2024 and September 26, 2026. That is this page’s default, not a limit on what the agency records.

Show every sample on record

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The most recent samples, result by result

The table below lists 31–40 of 48 samples, newest first — collected February 11, 2025 to March 13, 2025. The summary above covers all 48.

84 results from the 10 samples listed here: 17 detected, 67 not detected. Across the whole record it is 218 of 3,642. 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 HCUA-East, every result from 31 to 40 of 48 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 13, 2025 07:20
Sampling point
DS000 Distribution DS000
Sample type
Routine
Lab sample
PB-250320-001
Laboratory
MSDH Lab
0.00731 mg/l , sample collected Mar 13, 2025 07:20, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2025 – Jun 30, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 13, 2025 07:20, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2025 – Jun 30, 2025
Collected
Mar 12, 2025 19:55
Sampling point
DS000 Distribution DS000
Sample type
Routine
Lab sample
PB-250320-005
Laboratory
MSDH Lab
0.0737 mg/l , sample collected Mar 12, 2025 19:55, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2025 – Jun 30, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 12, 2025 19:55, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2025 – Jun 30, 2025
Collected
Mar 12, 2025 05:12
Sampling point
DS000 Distribution DS000
Sample type
Routine
Lab sample
PB-250320-004
Laboratory
MSDH Lab
0.119 mg/l , sample collected Mar 12, 2025 05:12, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2025 – Jun 30, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 12, 2025 05:12, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2025 – Jun 30, 2025
Collected
Mar 12, 2025 23:30
Sampling point
DS000 Distribution DS000
Sample type
Routine
Lab sample
PB-250320-002
Laboratory
MSDH Lab
0.028 mg/l , sample collected Mar 12, 2025 23:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2025 – Jun 30, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 12, 2025 23:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2025 – Jun 30, 2025
Collected
Feb 12, 2025 08:05
Sampling point
TF105 Treatment Facility TF105
Sample type
Routine
Lab sample
IN-250213-009
Laboratory
MSDH Lab
0.0008 mg/l , sample collected Feb 12, 2025 08:05, sampling point TF105 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0757 mg/l , sample collected Feb 12, 2025 08:05, sampling point TF105 Barium 1010 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 08:05, sampling point TF105 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0012 mg/l , sample collected Feb 12, 2025 08:05, sampling point TF105 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.297 mg/l , sample collected Feb 12, 2025 08:05, sampling point TF105 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 08:05, sampling point TF105 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0025 mg/l , sample collected Feb 12, 2025 08:05, sampling point TF105 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 08:05, sampling point TF105 Selenium 1045 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 08:05, sampling point TF105 Antimony, Total 1074 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 08:05, sampling point TF105 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 08:05, sampling point TF105 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Feb 12, 2025 07:45
Sampling point
TF104 Treatment Facility TF104
Sample type
Routine
Lab sample
IN-250213-008
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 07:45, sampling point TF104 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0033 mg/l , sample collected Feb 12, 2025 07:45, sampling point TF104 Barium 1010 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 07:45, sampling point TF104 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 07:45, sampling point TF104 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.308 mg/l , sample collected Feb 12, 2025 07:45, sampling point TF104 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 07:45, sampling point TF104 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 07:45, sampling point TF104 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 07:45, sampling point TF104 Selenium 1045 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 07:45, sampling point TF104 Antimony, Total 1074 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 07:45, sampling point TF104 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 07:45, sampling point TF104 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Feb 12, 2025 07:35
Sampling point
TF103 Treatment Facility TF103
Sample type
Routine
Lab sample
IN-250213-007
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 07:35, sampling point TF103 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0028 mg/l , sample collected Feb 12, 2025 07:35, sampling point TF103 Barium 1010 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 07:35, sampling point TF103 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 07:35, sampling point TF103 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.273 mg/l , sample collected Feb 12, 2025 07:35, sampling point TF103 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 07:35, sampling point TF103 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 07:35, sampling point TF103 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 07:35, sampling point TF103 Selenium 1045 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 07:35, sampling point TF103 Antimony, Total 1074 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 07:35, sampling point TF103 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 07:35, sampling point TF103 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Feb 12, 2025 08:25
Sampling point
TF102 Treatment Facility TF102
Sample type
Routine
Lab sample
IN-250213-006
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 08:25, sampling point TF102 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0055 mg/l , sample collected Feb 12, 2025 08:25, sampling point TF102 Barium 1010 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 08:25, sampling point TF102 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 08:25, sampling point TF102 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.514 mg/l , sample collected Feb 12, 2025 08:25, sampling point TF102 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 08:25, sampling point TF102 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 08:25, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 08:25, sampling point TF102 Selenium 1045 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 08:25, sampling point TF102 Antimony, Total 1074 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 08:25, sampling point TF102 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 08:25, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Feb 12, 2025 08:50
Sampling point
TF101 Treatment Facility TF101
Sample type
Routine
Lab sample
IN-250213-005
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 08:50, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0047 mg/l , sample collected Feb 12, 2025 08:50, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 08:50, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 08:50, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.195 mg/l , sample collected Feb 12, 2025 08:50, sampling point TF101 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 08:50, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 08:50, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 08:50, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 08:50, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 08:50, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 08:50, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Feb 11, 2025 12:05
Sampling point
TF104 Treatment Facility TF104
Sample type
Routine
Lab sample
VO-250212-008
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 11, 2025 12:05, sampling point TF104 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 11, 2025 12:05, sampling point TF104 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 11, 2025 12:05, sampling point TF104 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 11, 2025 12:05, sampling point TF104 Dichloromethane 2964 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 11, 2025 12:05, sampling point TF104 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 11, 2025 12:05, sampling point TF104 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 11, 2025 12:05, sampling point TF104 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 11, 2025 12:05, sampling point TF104 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 11, 2025 12:05, sampling point TF104 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 11, 2025 12:05, sampling point TF104 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 11, 2025 12:05, sampling point TF104 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 11, 2025 12:05, sampling point TF104 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 11, 2025 12:05, sampling point TF104 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 11, 2025 12:05, sampling point TF104 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 11, 2025 12:05, sampling point TF104 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 11, 2025 12:05, sampling point TF104 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 11, 2025 12:05, sampling point TF104 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 11, 2025 12:05, sampling point TF104 Benzene 2990 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 11, 2025 12:05, sampling point TF104 Toluene 2991 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 11, 2025 12:05, sampling point TF104 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 11, 2025 12:05, sampling point TF104 Styrene 2996 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025

Routine (10).