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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 191–200 of 270 samples, newest first — collected March 15, 2010 to August 25, 2010. The summary above covers all 270.

57 results from the 10 samples listed here: 28 detected, 29 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.

We withheld the location of 2 sampling points below. The location on record identifies a private home, and we do not publish those. That is our decision, not the agency’s. The sampling point, its type and every result taken there are published unchanged.

Chemical and radiological sample results for Hilton Heights Water Assn #1, every result from 191 to 200 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
Aug 25, 2010
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
100826-007HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Aug 25, 2010, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.003 mg/l , sample collected Aug 25, 2010, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.002 mg/l , sample collected Aug 25, 2010, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 25, 2010, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 25, 2010, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0 mg/l This result is recorded as a detection, and the figure the agency wrote — "0.00" — is zero to the precision it was written to. Read the zero as "smaller than the written figure resolves", not as "none present". SDWIS holds a separate numeric concentration that Drinking Water Watch does not publish, so this endpoint does not carry it either; no more precise magnitude is available here. , sample collected Aug 25, 2010, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2010 – Dec 31, 2010
Collected
Aug 25, 2010
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
100826-007TH
Laboratory
MSDH Lab
6.69 ug/l , sample collected Aug 25, 2010, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 25, 2010, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
5.26 ug/l , sample collected Aug 25, 2010, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
3.68 ug/l , sample collected Aug 25, 2010, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
15.63 ug/l , sample collected Aug 25, 2010, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2010 – Dec 31, 2010
Collected
May 10, 2010
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
100511-069IN
Laboratory
MSDH Lab
0.001 mg/l , sample collected May 10, 2010, sampling point TF103 Arsenic 1005 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.0017 mg/l , sample collected May 10, 2010, sampling point TF103 Barium 1010 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 10, 2010, sampling point TF103 Cadmium 1015 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.0009 mg/l , sample collected May 10, 2010, sampling point TF103 Chromium 1020 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.946 mg/l , sample collected May 10, 2010, sampling point TF103 Fluoride 1025 EPA method 380-75WE Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 10, 2010, sampling point TF103 Mercury 1035 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.0011 mg/l , sample collected May 10, 2010, sampling point TF103 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected May 10, 2010, sampling point TF103 Selenium 1045 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 10, 2010, sampling point TF103 Antimony, Total 1074 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 10, 2010, sampling point TF103 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 10, 2010, sampling point TF103 Thallium, Total 1085 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Collected
May 10, 2010
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
100511-068IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 10, 2010, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.0076 mg/l , sample collected May 10, 2010, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 10, 2010, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.0007 mg/l , sample collected May 10, 2010, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.906 mg/l , sample collected May 10, 2010, sampling point TF101 Fluoride 1025 EPA method 380-75WE Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 10, 2010, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.001 mg/l , sample collected May 10, 2010, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected May 10, 2010, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 10, 2010, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 10, 2010, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 10, 2010, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Collected
May 3, 2010
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
100504-007CN
Laboratory
MSDH Lab
Not detected below 15 ug/l Minimum Reporting Level , sample collected May 3, 2010, sampling point TF103 Cyanide 1024 EPA method QC10204001X Jan 1, 2008 – Dec 31, 2010
Collected
May 3, 2010
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
100504-005CN
Laboratory
MSDH Lab
Not detected below 15 ug/l Minimum Reporting Level , sample collected May 3, 2010, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2008 – Dec 31, 2010
Collected
Mar 15, 2010
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
100316-012HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Mar 15, 2010, sampling point SM2 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Mar 15, 2010, sampling point SM2 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.001 mg/l , sample collected Mar 15, 2010, sampling point SM2 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Mar 15, 2010, sampling point SM2 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Mar 15, 2010, sampling point SM2 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0 mg/l This result is recorded as a detection, and the figure the agency wrote — "0.00" — is zero to the precision it was written to. Read the zero as "smaller than the written figure resolves", not as "none present". SDWIS holds a separate numeric concentration that Drinking Water Watch does not publish, so this endpoint does not carry it either; no more precise magnitude is available here. , sample collected Mar 15, 2010, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 Not recorded
Collected
Mar 15, 2010
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
100316-011HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Mar 15, 2010, sampling point SM1 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Mar 15, 2010, sampling point SM1 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.001 mg/l , sample collected Mar 15, 2010, sampling point SM1 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Mar 15, 2010, sampling point SM1 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Mar 15, 2010, sampling point SM1 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0 mg/l This result is recorded as a detection, and the figure the agency wrote — "0.00" — is zero to the precision it was written to. Read the zero as "smaller than the written figure resolves", not as "none present". SDWIS holds a separate numeric concentration that Drinking Water Watch does not publish, so this endpoint does not carry it either; no more precise magnitude is available here. , sample collected Mar 15, 2010, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 Not recorded
Collected
Mar 15, 2010
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
100316-032TH
Laboratory
MSDH Lab
2.18 ug/l , sample collected Mar 15, 2010, sampling point SM2 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Mar 15, 2010, sampling point SM2 Bromoform 2942 EPA method 524.2 Not recorded
1.88 ug/l , sample collected Mar 15, 2010, sampling point SM2 Bromodichloromethane 2943 EPA method 524.2 Not recorded
1.21 ug/l , sample collected Mar 15, 2010, sampling point SM2 Dibromochloromethane 2944 EPA method 524.2 Not recorded
5.27 ug/l , sample collected Mar 15, 2010, sampling point SM2 TTHM 2950 EPA method 524.2 Not recorded
Collected
Mar 15, 2010
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
100316-031TH
Laboratory
MSDH Lab
2.39 ug/l , sample collected Mar 15, 2010, sampling point SM1 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Mar 15, 2010, sampling point SM1 Bromoform 2942 EPA method 524.2 Not recorded
2.18 ug/l , sample collected Mar 15, 2010, sampling point SM1 Bromodichloromethane 2943 EPA method 524.2 Not recorded
1.5 ug/l , sample collected Mar 15, 2010, sampling point SM1 Dibromochloromethane 2944 EPA method 524.2 Not recorded
6.07 ug/l , sample collected Mar 15, 2010, sampling point SM1 TTHM 2950 EPA method 524.2 Not recorded

Routine (10).