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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

MS0750005 , Hilldale Water District

43 of the 74 analytes this system has been tested for have been detected at least once, across 389 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 389 samples on record, detections range from October 29, 2003 to July 21, 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 Hilldale Water District, 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 162 of 162 results Jun 10, 2004 Aug 21, 2025
Lead 1030 Inorganic Chemical 105 of 162 results Jun 10, 2004 Aug 21, 2025
Fluoride 1025 Inorganic Chemical 32 of 32 results Oct 29, 2003 Apr 2, 2025
Xylenes, Total 2955 Organic Chemical 24 of 77 results Mar 8, 2004 Jul 30, 2018
TTHM 2950 Organic Chemical 20 of 20 results Aug 23, 2004 Jun 1, 2026
Sodium 1052 Inorganic Chemical 19 of 19 results Apr 6, 2009 Jul 21, 2026
Barium 1010 Inorganic Chemical 19 of 19 results Oct 29, 2003 Apr 2, 2025
Nitrate-Nitrite 1038 Inorganic Chemical 16 of 44 results Aug 9, 2006 Jul 21, 2026
Nitrate 1040 Inorganic Chemical 16 of 44 results Aug 9, 2006 Jul 21, 2026
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 16 of 20 results Jul 12, 2010 Jun 1, 2026
Sulfate 1055 Inorganic Chemical 15 of 15 results Oct 29, 2003 May 3, 2021
Chloroform 2941 Organic Chemical 14 of 14 results Sep 17, 2007 Jun 1, 2026
Bromodichloromethane 2943 Organic Chemical 14 of 14 results Sep 17, 2007 Jun 1, 2026
Dibromochloromethane 2944 Organic Chemical 14 of 14 results Sep 17, 2007 Jun 1, 2026
Chromium 1020 Inorganic Chemical 14 of 19 results Oct 29, 2003 May 21, 2019
Dichloroacetic Acid 2451 Organic Chemical 13 of 13 results Jul 12, 2010 Jun 1, 2026
Calcium 1016 Inorganic Chemical 13 of 13 results Apr 6, 2009 May 3, 2021
Chloride 1017 Inorganic Chemical 13 of 13 results Apr 6, 2009 May 3, 2021
Color 1905 Water Quality 13 of 13 results Apr 6, 2009 May 3, 2021
Alkalinity, Total 1927 Water Quality 13 of 13 results Apr 6, 2009 May 3, 2021
Gross Alpha, Incl. Radon & U 4002 Radionuclide 10 of 10 results Mar 12, 2012 Oct 10, 2012
Trichloroacetic Acid 2452 Organic Chemical 9 of 13 results Oct 27, 2020 Jun 1, 2026
Nickel 1036 Inorganic Chemical 9 of 19 results Apr 5, 2004 Apr 2, 2025
Conductivity @ 25 C Umhos/CM 1064 Water Quality 7 of 7 results May 3, 2021 May 3, 2021
Ethylbenzene 2992 Organic Chemical 7 of 78 results Mar 8, 2004 Aug 22, 2011
Magnesium 1031 Inorganic Chemical 6 of 6 results Apr 6, 2009 Apr 25, 2014
Manganese 1032 Inorganic Chemical 6 of 6 results Apr 6, 2009 Apr 25, 2014
Potassium 1042 Inorganic Chemical 6 of 6 results Apr 6, 2009 Apr 25, 2014
Residue, Total, Filterable 1057 Water Quality 6 of 6 results Apr 6, 2009 Apr 25, 2014
Carbon Dioxide 1901 Water Quality 6 of 6 results Apr 6, 2009 Apr 25, 2014
Hardness, Total (As Caco3) 1915 Water Quality 6 of 6 results Apr 6, 2009 Apr 25, 2014
Iron, Field Result FEFD Inorganic Chemical 6 of 6 results Apr 6, 2009 Apr 25, 2014
Calculated Sodium NACA Water Quality 6 of 6 results Apr 6, 2009 Apr 25, 2014
PH, Field Result PHFD Water Quality 6 of 6 results Apr 6, 2009 Apr 25, 2014
Bromoform 2942 Organic Chemical 5 of 14 results Sep 17, 2007 Nov 18, 2024
Iron 1028 Inorganic Chemical 5 of 6 results Apr 15, 2014 Apr 25, 2014
Selenium 1045 Inorganic Chemical 4 of 19 results May 2, 2005 Mar 3, 2010
Toluene 2991 Organic Chemical 2 of 78 results Mar 22, 2004 Jun 7, 2004
Monobromoacetic Acid 2453 Organic Chemical 1 of 13 results Oct 27, 2020 Oct 27, 2020
Dibromoacetic Acid 2454 Organic Chemical 1 of 13 results Oct 27, 2020 Oct 27, 2020
Alkalinity, Caco3 Stability 1067 Water Quality 1 of 1 result Apr 6, 2009 Apr 6, 2009
PH 1925 Water Quality 1 of 1 result Apr 6, 2009 Apr 6, 2009
Cadmium 1015 Inorganic Chemical 1 of 19 results May 2, 2005 May 2, 2005

Showing samples collected between September 25, 2024 and September 25, 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 11–20 of 37 samples, newest first — collected August 20, 2025 to August 20, 2025. The summary above covers all 37.

20 results from the 10 samples listed here: 16 detected, 4 not detected. Across the whole record it is 682 of 2,700. 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 Hilldale Water District, every result from 11 to 20 of 37 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 20, 2025 04:45
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-250825-004
Laboratory
MSDH Lab
0.101 mg/l , sample collected Aug 20, 2025 04:45, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.7 ug/l , sample collected Aug 20, 2025 04:45, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Aug 20, 2025 06:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-250825-009
Laboratory
MSDH Lab
0.143 mg/l , sample collected Aug 20, 2025 06:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
3.6 ug/l , sample collected Aug 20, 2025 06:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Aug 20, 2025 06:34
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-250825-003
Laboratory
MSDH Lab
0.0931 mg/l , sample collected Aug 20, 2025 06:34, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 20, 2025 06:34, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Aug 20, 2025 06:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-250825-008
Laboratory
MSDH Lab
0.0701 mg/l , sample collected Aug 20, 2025 06:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.8 ug/l , sample collected Aug 20, 2025 06:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Aug 20, 2025 05:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-250825-002
Laboratory
MSDH Lab
0.245 mg/l , sample collected Aug 20, 2025 05:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
2 ug/l , sample collected Aug 20, 2025 05:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Aug 20, 2025 07:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-250825-001
Laboratory
MSDH Lab
0.0694 mg/l , sample collected Aug 20, 2025 07:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 20, 2025 07:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Aug 20, 2025 06:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-250825-007
Laboratory
MSDH Lab
0.101 mg/l , sample collected Aug 20, 2025 06:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 20, 2025 06:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Aug 20, 2025 08:06
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-250825-006
Laboratory
MSDH Lab
0.59 mg/l , sample collected Aug 20, 2025 08:06, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
14.3 ug/l , sample collected Aug 20, 2025 08:06, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Aug 20, 2025 06:48
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-250825-016
Laboratory
MSDH Lab
0.0258 mg/l , sample collected Aug 20, 2025 06:48, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 20, 2025 06:48, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Aug 20, 2025 08:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-250825-011
Laboratory
MSDH Lab
0.133 mg/l , sample collected Aug 20, 2025 08:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
1 ug/l , sample collected Aug 20, 2025 08:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025

Routine (10).