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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 211–220 of 270 samples, newest first — collected September 17, 2008 to June 15, 2009. The summary above covers all 270.

38 results from the 10 samples listed here: 17 detected, 21 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 211 to 220 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
Jun 15, 2009
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
090616-038TH
Laboratory
MSDH Lab
7.19 ug/l , sample collected Jun 15, 2009, sampling point SM2 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 15, 2009, sampling point SM2 Bromoform 2942 EPA method 524.2 Not recorded
2.49 ug/l , sample collected Jun 15, 2009, sampling point SM2 Bromodichloromethane 2943 EPA method 524.2 Not recorded
1.21 ug/l , sample collected Jun 15, 2009, sampling point SM2 Dibromochloromethane 2944 EPA method 524.2 Not recorded
10.89 ug/l , sample collected Jun 15, 2009, sampling point SM2 TTHM 2950 EPA method 524.2 Not recorded
Collected
Jun 15, 2009
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
090616-037TH
Laboratory
MSDH Lab
53.4 ug/l , sample collected Jun 15, 2009, sampling point SM1 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 15, 2009, sampling point SM1 Bromoform 2942 EPA method 524.2 Not recorded
3.54 ug/l , sample collected Jun 15, 2009, sampling point SM1 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 15, 2009, sampling point SM1 Dibromochloromethane 2944 EPA method 524.2 Not recorded
56.94 ug/l , sample collected Jun 15, 2009, sampling point SM1 TTHM 2950 EPA method 524.2 Not recorded
Collected
Jun 15, 2009
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
090616-036HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Jun 15, 2009, sampling point SM2 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.002 mg/l , sample collected Jun 15, 2009, sampling point SM2 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.002 mg/l , sample collected Jun 15, 2009, sampling point SM2 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jun 15, 2009, sampling point SM2 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jun 15, 2009, 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 Jun 15, 2009, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 Not recorded
Collected
Jun 15, 2009
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
090616-035HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Jun 15, 2009, sampling point SM1 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.016 mg/l , sample collected Jun 15, 2009, sampling point SM1 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.022 mg/l , sample collected Jun 15, 2009, sampling point SM1 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jun 15, 2009, sampling point SM1 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jun 15, 2009, sampling point SM1 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.03 mg/l , sample collected Jun 15, 2009, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 Not recorded
Collected
Jun 8, 2009
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
090609-026NI
Laboratory
MSDH Lab
Not detected below 0.25 mg/l Minimum Reporting Level , sample collected Jun 8, 2009, sampling point TF103 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.2 mg/l Minimum Reporting Level , sample collected Jun 8, 2009, sampling point TF103 Nitrate 1040 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Jun 8, 2009, sampling point TF103 Nitrite 1041 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Collected
Jun 8, 2009
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
090609-025NI
Laboratory
MSDH Lab
Not detected below 0.25 mg/l Minimum Reporting Level , sample collected Jun 8, 2009, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.2 mg/l Minimum Reporting Level , sample collected Jun 8, 2009, sampling point TF101 Nitrate 1040 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Jun 8, 2009, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Collected
Dec 8, 2008
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
081209-003NI
Laboratory
MSDH Lab
Not detected below 0.25 mg/l Minimum Reporting Level , sample collected Dec 8, 2008, sampling point TF103 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008
Not detected below 0.2 mg/l Minimum Reporting Level , sample collected Dec 8, 2008, sampling point TF103 Nitrate 1040 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Dec 8, 2008, sampling point TF103 Nitrite 1041 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008
Collected
Dec 1, 2008
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
081202-022NI
Laboratory
MSDH Lab
Not detected below 0.25 mg/l Minimum Reporting Level , sample collected Dec 1, 2008, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008
Not detected below 0.2 mg/l Minimum Reporting Level , sample collected Dec 1, 2008, sampling point TF101 Nitrate 1040 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Dec 1, 2008, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008
Collected
Sep 17, 2008
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
080918-065PB
Laboratory
MSDH Lab
0.0327 mg/l , sample collected Sep 17, 2008, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
0.0005 mg/l , sample collected Sep 17, 2008, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Collected
Sep 17, 2008
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
080918-064PB
Laboratory
MSDH Lab
0.1594 mg/l , sample collected Sep 17, 2008, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
0.01 mg/l , sample collected Sep 17, 2008, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008

Routine (10).