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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

MS0820008 , Hilton Heights Water Assn #1

24 of the 62 analytes this system has been tested for have been detected at least once, across 270 samples on record.

The other 38 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 270 samples on record, detections range from November 5, 2003 to May 14, 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 Hilton Heights Water Assn #1, 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 60 of 60 results Sep 17, 2008 Aug 16, 2023
Lead 1030 Inorganic Chemical 41 of 60 results Sep 17, 2008 Aug 16, 2023
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 31 of 31 results Sep 1, 2004 May 14, 2026
TTHM 2950 Organic Chemical 30 of 30 results Sep 1, 2004 Dec 10, 2024
Barium 1010 Inorganic Chemical 28 of 28 results Nov 5, 2003 Jul 12, 2023
Fluoride 1025 Inorganic Chemical 28 of 30 results Nov 5, 2003 Jul 12, 2023
Chloroform 2941 Organic Chemical 26 of 26 results Oct 18, 2006 Dec 10, 2024
Bromodichloromethane 2943 Organic Chemical 26 of 26 results Oct 18, 2006 Dec 10, 2024
Trichloroacetic Acid 2452 Organic Chemical 25 of 25 results Jul 9, 2008 May 14, 2026
Dichloroacetic Acid 2451 Organic Chemical 23 of 25 results Jul 9, 2008 May 14, 2026
Chromium 1020 Inorganic Chemical 20 of 28 results Apr 7, 2004 Jul 12, 2023
Gross Alpha, Incl. Radon & U 4002 Radionuclide 10 of 12 results Dec 6, 2011 Jul 31, 2012
Sodium 1052 Inorganic Chemical 6 of 6 results Sep 25, 2019 Mar 21, 2023
Sulfate 1055 Inorganic Chemical 6 of 6 results Nov 5, 2003 Oct 6, 2021
Nickel 1036 Inorganic Chemical 4 of 28 results May 10, 2010 Jun 3, 2013
Dibromochloromethane 2944 Organic Chemical 4 of 26 results Jun 15, 2009 Aug 25, 2010
Monochloroacetic Acid 2450 Organic Chemical 3 of 25 results Sep 14, 2009 Dec 14, 2009
Calcium 1016 Inorganic Chemical 2 of 2 results Oct 6, 2021 Oct 6, 2021
Chloride 1017 Inorganic Chemical 2 of 2 results Oct 6, 2021 Oct 6, 2021
Conductivity @ 25 C Umhos/CM 1064 Water Quality 2 of 2 results Oct 6, 2021 Oct 6, 2021
Color 1905 Water Quality 2 of 2 results Oct 6, 2021 Oct 6, 2021
Alkalinity, Total 1927 Water Quality 2 of 2 results Oct 6, 2021 Oct 6, 2021
Nitrite 1041 Inorganic Chemical 2 of 40 results Aug 14, 2006 Aug 14, 2006
Arsenic 1005 Inorganic Chemical 1 of 28 results May 10, 2010 May 10, 2010

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 101–110 of 270 samples, newest first — collected August 8, 2017 to January 30, 2018. The summary above covers all 270.

20 results from the 10 samples listed here: 4 detected, 16 not detected. Across the whole record it is 384 of 1,761. 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 Hilton Heights Water Assn #1, every result from 101 to 110 of 270 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
Jan 30, 2018 14:30
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
180202-028RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 30, 2018 14:30, sampling point TF103 Combined Uranium 4006 EPA method 200.8 Jan 1, 2018 – Mar 31, 2018
Collected
Jan 30, 2018 14:05
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
180202-027RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 30, 2018 14:05, sampling point TF101 Combined Uranium 4006 EPA method 200.8 Jan 1, 2018 – Mar 31, 2018
Collected
Jan 9, 2018 14:35
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
3883058
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 1.4 pci/l Minimum Reporting Level , sample collected Jan 9, 2018 14:35, sampling point TF103 Gross Alpha, Incl. Radon & U 4002 EPA method 7110B Jan 1, 2018 – Dec 31, 2026
Collected
Jan 9, 2018 14:35
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
3883057
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 0.5 pci/l Minimum Reporting Level , sample collected Jan 9, 2018 14:35, sampling point TF103 Combined Radium (-226 & -228) 4010 EPA method 7500-RA Not recorded
Not detected below 0.09 pci/l Minimum Reporting Level , sample collected Jan 9, 2018 14:35, sampling point TF103 Radium-226 4020 EPA method 7500-RAB Jan 1, 2018 – Dec 31, 2026
Not detected below 0.5 pci/l Minimum Reporting Level , sample collected Jan 9, 2018 14:35, sampling point TF103 Radium-228 4030 EPA method 7500-RAD Jan 1, 2018 – Dec 31, 2026
Collected
Jan 9, 2018 14:05
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
3883056
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 1.2 pci/l Minimum Reporting Level , sample collected Jan 9, 2018 14:05, sampling point TF101 Gross Alpha, Incl. Radon & U 4002 EPA method 7110B Jan 1, 2018 – Dec 31, 2026
Collected
Jan 9, 2018 14:05
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
3883055
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 0.49 pci/l Minimum Reporting Level , sample collected Jan 9, 2018 14:05, sampling point TF101 Combined Radium (-226 & -228) 4010 EPA method 7500-RA Not recorded
Not detected below 0.07 pci/l Minimum Reporting Level , sample collected Jan 9, 2018 14:05, sampling point TF101 Radium-226 4020 EPA method 7500-RAB Jan 1, 2018 – Dec 31, 2026
Not detected below 0.49 pci/l Minimum Reporting Level , sample collected Jan 9, 2018 14:05, sampling point TF101 Radium-228 4030 EPA method 7500-RAD Jan 1, 2018 – Dec 31, 2026
Collected
Nov 7, 2017 09:05
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
171108-005NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Nov 7, 2017 09:05, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Nov 7, 2017 09:05, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Nov 7, 2017 09:05, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Collected
Nov 7, 2017 09:30
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
171108-004NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Nov 7, 2017 09:30, sampling point TF103 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Nov 7, 2017 09:30, sampling point TF103 Nitrate 1040 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Nov 7, 2017 09:30, sampling point TF103 Nitrite 1041 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Collected
Aug 8, 2017 06:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
170809-167PB
Laboratory
MSDH Lab
0.0167 mg/l , sample collected Aug 8, 2017 06:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Not recorded
0.0036 mg/l , sample collected Aug 8, 2017 06:30, sampling point DS000 Lead 1030 EPA method 200.8 Not recorded
Collected
Aug 8, 2017 04:55
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
170809-166PB
Laboratory
MSDH Lab
0.1568 mg/l , sample collected Aug 8, 2017 04:55, sampling point DS000 Copper, Free 1022 EPA method 200.8 Not recorded
0.0008 mg/l , sample collected Aug 8, 2017 04:55, sampling point DS000 Lead 1030 EPA method 200.8 Not recorded

Routine (10).