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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 241–250 of 270 samples, newest first — collected May 2, 2005 to April 17, 2006. The summary above covers all 270.

34 results from the 10 samples listed here: 8 detected, 26 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 241 to 250 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
Apr 17, 2006
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
060418-043CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Apr 17, 2006, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2005 – Dec 31, 2007
Collected
Apr 17, 2006
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
060418-123CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Apr 17, 2006, sampling point TF103 Cyanide 1024 EPA method QC10204001X Not recorded
Collected
Nov 30, 2005
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
051201-007HA
Laboratory
MSDH Lab
0.051 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Nov 30, 2005, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2005 – Dec 31, 2005
Collected
Nov 30, 2005
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
051201-008TH
Laboratory
MSDH Lab
63.5 ug/l , sample collected Nov 30, 2005, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2005 – Dec 31, 2005
Collected
Oct 3, 2005
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
051004-120NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Oct 3, 2005, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Oct 3, 2005, sampling point TF101 Nitrate 1040 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Oct 3, 2005, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Collected
Oct 3, 2005
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
051004-141NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Oct 3, 2005, sampling point TF103 Nitrate-Nitrite 1038 EPA method 353.2 Not recorded
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Oct 3, 2005, sampling point TF103 Nitrate 1040 EPA method 353.2 Not recorded
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Oct 3, 2005, sampling point TF103 Nitrite 1041 EPA method 353.2 Not recorded
Collected
May 2, 2005
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
050503-061CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected May 2, 2005, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2005 – Dec 31, 2007
Collected
May 2, 2005
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
050503-003CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected May 2, 2005, sampling point TF103 Cyanide 1024 EPA method QC10204001X Not recorded
Collected
May 2, 2005
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
050503-040IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 2, 2005, sampling point TF103 Arsenic 1005 EPA method 200.8 Not recorded
0.002514 mg/l , sample collected May 2, 2005, sampling point TF103 Barium 1010 EPA method 200.8 Not recorded
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected May 2, 2005, sampling point TF103 Cadmium 1015 EPA method 200.8 Not recorded
0.002231 mg/l , sample collected May 2, 2005, sampling point TF103 Chromium 1020 EPA method 200.8 Not recorded
0.199989 mg/l , sample collected May 2, 2005, sampling point TF103 Fluoride 1025 EPA method 380-75WE Not recorded
Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected May 2, 2005, sampling point TF103 Mercury 1035 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 2, 2005, sampling point TF103 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 2, 2005, sampling point TF103 Selenium 1045 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 2, 2005, sampling point TF103 Antimony, Total 1074 EPA method 200.8 Not recorded
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected May 2, 2005, sampling point TF103 Beryllium, Total 1075 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 2, 2005, sampling point TF103 Thallium, Total 1085 EPA method 200.8 Not recorded
Collected
May 2, 2005
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
050503-053IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 2, 2005, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.004772 mg/l , sample collected May 2, 2005, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected May 2, 2005, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.001044 mg/l , sample collected May 2, 2005, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.126076 mg/l , sample collected May 2, 2005, sampling point TF101 Fluoride 1025 EPA method 380-75WE Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected May 2, 2005, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 2, 2005, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 2, 2005, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 2, 2005, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected May 2, 2005, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 2, 2005, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007

Routine (10).