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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

MS0800013 , Ellison Ridge Water Assn

16 of the 57 analytes this system has been tested for have been detected at least once, across 196 samples on record.

The other 41 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 196 samples on record, detections range from November 3, 2003 to April 23, 2025. 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 Ellison Ridge Water Assn, 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 110 of 110 results Jun 29, 2004 Sep 30, 2024
Lead 1030 Inorganic Chemical 28 of 110 results Jun 29, 2004 Aug 4, 2021
Nitrate-Nitrite 1038 Inorganic Chemical 20 of 20 results Jun 23, 2004 Apr 24, 2024
Nitrate 1040 Inorganic Chemical 20 of 20 results Jun 23, 2004 Apr 24, 2024
Barium 1010 Inorganic Chemical 10 of 10 results Nov 3, 2003 Apr 23, 2025
Nickel 1036 Inorganic Chemical 6 of 10 results Apr 5, 2004 Apr 23, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 5 of 18 results Aug 4, 2010 Jul 31, 2024
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 5 results Dec 15, 2011 Jul 17, 2012
TTHM 2950 Organic Chemical 4 of 17 results Sep 17, 2007 Oct 18, 2022
Chromium 1020 Inorganic Chemical 3 of 10 results Nov 3, 2003 Apr 23, 2025
Sodium 1052 Inorganic Chemical 2 of 2 results Sep 23, 2019 Mar 22, 2023
Monobromoacetic Acid 2453 Organic Chemical 1 of 13 results Nov 4, 2020 Nov 4, 2020
Trichloroacetic Acid 2452 Organic Chemical 1 of 13 results Sep 12, 2016 Sep 12, 2016
Dibromochloromethane 2944 Organic Chemical 1 of 12 results Sep 12, 2016 Sep 12, 2016
Cadmium 1015 Inorganic Chemical 1 of 10 results May 2, 2005 May 2, 2005
Selenium 1045 Inorganic Chemical 1 of 10 results May 2, 2005 May 2, 2005

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 31–40 of 196 samples, newest first — collected August 4, 2021 to October 18, 2022. The summary above covers all 196.

16 results from the 10 samples listed here: 9 detected, 7 not detected. Across the whole record it is 218 of 725. 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 4 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 Ellison Ridge Water Assn, every result from 31 to 40 of 196 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
Oct 18, 2022 14:10
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
HA-221019-009
Laboratory
MSDH Lab
2.48 ug/l , sample collected Oct 18, 2022 14:10, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Not recorded
Collected
Oct 18, 2022 14:00
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
TH-221019-009
Laboratory
MSDH Lab
3.78 ug/l , sample collected Oct 18, 2022 14:00, sampling point MRT000 TTHM 2950 EPA method 524.2 Not recorded
Collected
Apr 4, 2022 09:30
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
NI-220405-050
Laboratory
MSDH Lab
1.15 mg/l , sample collected Apr 4, 2022 09:30, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
1.15 mg/l , sample collected Apr 4, 2022 09:30, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 4, 2022 09:30, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Collected
Dec 7, 2021 10:10
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
HA-211208-026
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 7, 2021 10:10, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Not recorded
Collected
Dec 7, 2021 10:00
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
TH-211208-021
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 7, 2021 10:00, sampling point MRT000 TTHM 2950 EPA method 524.2 Not recorded
Collected
Sep 21, 2021 12:45
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
RU-210922-023
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 21, 2021 12:45, sampling point TF080 Combined Uranium 4006 EPA method 200.8 Jan 1, 2013 – Dec 31, 2021
Collected
Aug 4, 2021 04:45
Sampling point
LC0015 Location withheld
Sample type
Routine
Lab sample
PB-210805-090
Laboratory
MSDH Lab
0.0726 mg/l , sample collected Aug 4, 2021 04:45, sampling point LC0015 Copper, Free 1022 EPA method 200.8 Jan 1, 2019 – Dec 31, 2021
0.5 ug/l , sample collected Aug 4, 2021 04:45, sampling point LC0015 Lead 1030 EPA method 200.8 Jan 1, 2019 – Dec 31, 2021
Collected
Aug 4, 2021 07:00
Sampling point
LC0014 Location withheld
Sample type
Routine
Lab sample
PB-210805-089
Laboratory
MSDH Lab
0.0825 mg/l , sample collected Aug 4, 2021 07:00, sampling point LC0014 Copper, Free 1022 EPA method 200.8 Jan 1, 2019 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 4, 2021 07:00, sampling point LC0014 Lead 1030 EPA method 200.8 Jan 1, 2019 – Dec 31, 2021
Collected
Aug 4, 2021 06:45
Sampling point
LC0013 Location withheld
Sample type
Routine
Lab sample
PB-210805-088
Laboratory
MSDH Lab
0.0245 mg/l , sample collected Aug 4, 2021 06:45, sampling point LC0013 Copper, Free 1022 EPA method 200.8 Jan 1, 2019 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 4, 2021 06:45, sampling point LC0013 Lead 1030 EPA method 200.8 Jan 1, 2019 – Dec 31, 2021
Collected
Aug 4, 2021 04:00
Sampling point
LC0012 Location withheld
Sample type
Routine
Lab sample
PB-210805-087
Laboratory
MSDH Lab
0.0344 mg/l , sample collected Aug 4, 2021 04:00, sampling point LC0012 Copper, Free 1022 EPA method 200.8 Jan 1, 2019 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 4, 2021 04:00, sampling point LC0012 Lead 1030 EPA method 200.8 Jan 1, 2019 – Dec 31, 2021

Routine (10).