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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

MS0730009 , Wallerville Water Association

19 of the 57 analytes this system has been tested for have been detected at least once, across 219 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 219 samples on record, detections range from October 29, 2003 to July 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 Wallerville Water Association, 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 61 of 61 results Aug 21, 2006 Aug 9, 2023
Barium 1010 Inorganic Chemical 19 of 19 results Oct 29, 2003 Apr 2, 2025
Fluoride 1025 Inorganic Chemical 18 of 19 results Oct 29, 2003 Apr 2, 2025
Lead 1030 Inorganic Chemical 16 of 61 results Aug 21, 2006 Aug 9, 2023
Nickel 1036 Inorganic Chemical 15 of 19 results Oct 29, 2003 Apr 2, 2025
Chromium 1020 Inorganic Chemical 13 of 19 results Oct 29, 2003 May 17, 2023
TTHM 2950 Organic Chemical 12 of 18 results Sep 17, 2007 Oct 29, 2024
Gross Alpha, Incl. Radon & U 4002 Radionuclide 10 of 10 results Mar 12, 2012 Oct 10, 2012
Bromoform 2942 Organic Chemical 9 of 13 results Jul 13, 2010 Oct 29, 2024
Arsenic 1005 Inorganic Chemical 7 of 19 results Apr 19, 2006 Apr 2, 2025
Dibromochloromethane 2944 Organic Chemical 7 of 13 results Oct 26, 2020 Oct 29, 2024
Selenium 1045 Inorganic Chemical 7 of 19 results Mar 29, 2004 May 10, 2017
Sodium 1052 Inorganic Chemical 6 of 6 results Oct 2, 2019 Jul 14, 2026
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 5 of 18 results Jul 13, 2010 Aug 30, 2023
Sulfate 1055 Inorganic Chemical 4 of 4 results Oct 29, 2003 Mar 29, 2004
Cadmium 1015 Inorganic Chemical 2 of 19 results Apr 26, 2005 Apr 26, 2005
Monobromoacetic Acid 2453 Organic Chemical 1 of 12 results Oct 26, 2020 Oct 26, 2020
Nitrate-Nitrite 1038 Inorganic Chemical 1 of 45 results Apr 4, 2011 Apr 4, 2011
Nitrate 1040 Inorganic Chemical 1 of 45 results Apr 4, 2011 Apr 4, 2011

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 21–30 of 219 samples, newest first — collected August 9, 2023 to August 30, 2023. The summary above covers all 219.

18 results from the 10 samples listed here: 11 detected, 7 not detected. Across the whole record it is 214 of 1,154. 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 8 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 Wallerville Water Association, every result from 21 to 30 of 219 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 30, 2023 15:30
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
TH-230831-012
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 30, 2023 15:30, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Collected
Aug 30, 2023 15:30
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
HA-230831-012
Laboratory
MSDH Lab
1.34 ug/l , sample collected Aug 30, 2023 15:30, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2023 – Dec 31, 2023
Collected
Aug 9, 2023 06:00
Sampling point
LC0016 Location withheld
Sample type
Routine
Lab sample
PB-230810-096
Laboratory
MSDH Lab
0.0293 mg/l , sample collected Aug 9, 2023 06:00, sampling point LC0016 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 9, 2023 06:00, sampling point LC0016 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 9, 2023 06:00
Sampling point
LC0003 Location withheld
Sample type
Routine
Lab sample
PB-230810-093
Laboratory
MSDH Lab
0.316 mg/l , sample collected Aug 9, 2023 06:00, sampling point LC0003 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 9, 2023 06:00, sampling point LC0003 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 9, 2023 07:00
Sampling point
LC0012 Location withheld
Sample type
Routine
Lab sample
PB-230810-094
Laboratory
MSDH Lab
0.313 mg/l , sample collected Aug 9, 2023 07:00, sampling point LC0012 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 9, 2023 07:00, sampling point LC0012 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 9, 2023 07:00
Sampling point
LC0013 Location withheld
Sample type
Routine
Lab sample
PB-230810-100
Laboratory
MSDH Lab
0.0252 mg/l , sample collected Aug 9, 2023 07:00, sampling point LC0013 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 9, 2023 07:00, sampling point LC0013 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 9, 2023 07:00
Sampling point
LC0014 Location withheld
Sample type
Routine
Lab sample
PB-230810-091
Laboratory
MSDH Lab
0.35 mg/l , sample collected Aug 9, 2023 07:00, sampling point LC0014 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.5 ug/l , sample collected Aug 9, 2023 07:00, sampling point LC0014 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 9, 2023 06:00
Sampling point
LC0027 Location withheld
Sample type
Routine
Lab sample
PB-230810-092
Laboratory
MSDH Lab
0.0519 mg/l , sample collected Aug 9, 2023 06:00, sampling point LC0027 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.7 ug/l , sample collected Aug 9, 2023 06:00, sampling point LC0027 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 9, 2023 06:00
Sampling point
LC0025 Location withheld
Sample type
Routine
Lab sample
PB-230810-099
Laboratory
MSDH Lab
0.0296 mg/l , sample collected Aug 9, 2023 06:00, sampling point LC0025 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 9, 2023 06:00, sampling point LC0025 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 9, 2023 07:00
Sampling point
LC0010 Location withheld
Sample type
Routine
Lab sample
PB-230810-098
Laboratory
MSDH Lab
0.404 mg/l , sample collected Aug 9, 2023 07:00, sampling point LC0010 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 9, 2023 07:00, sampling point LC0010 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023

Routine (10).