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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 171–180 of 219 samples, newest first — collected August 14, 2007 to July 30, 2008. The summary above covers all 219.

24 results from the 10 samples listed here: 10 detected, 14 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.

Chemical and radiological sample results for Wallerville Water Association, every result from 171 to 180 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
Jul 30, 2008
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
080731-029NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jul 30, 2008, sampling point TF102 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jul 30, 2008, sampling point TF102 Nitrate 1040 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jul 30, 2008, sampling point TF102 Nitrite 1041 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008
Collected
Jul 30, 2008
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
080731-026NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jul 30, 2008, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jul 30, 2008, sampling point TF101 Nitrate 1040 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jul 30, 2008, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008
Collected
Sep 17, 2007
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
070918-001HA
Laboratory
MSDH Lab
Not detected below 0.006 mg/l Minimum Reporting Level , sample collected Sep 17, 2007, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2005 – Dec 31, 2007
Collected
Sep 17, 2007
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
070918-028TH
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 17, 2007, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 17, 2007, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 17, 2007, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 17, 2007, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
0 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. The agency recorded a value but no unit of measure for it. The unit is NOT inferable from the analyte: many analytes are reported in more than one unit — TTHM and HAA5 in both MG/L and UG/L — so there is no per-analyte default to fall back on. The number is published as it stands and must not be compared to a limit. 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 Sep 17, 2007, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2005 – Dec 31, 2007
Collected
Aug 14, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070815-565PB
Laboratory
MSDH Lab
0.0039 mg/l , sample collected Aug 14, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 14, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Collected
Aug 14, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070815-564PB
Laboratory
MSDH Lab
0.0345 mg/l , sample collected Aug 14, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
0.0013 mg/l , sample collected Aug 14, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Collected
Aug 14, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070815-436PB
Laboratory
MSDH Lab
0.2371 mg/l , sample collected Aug 14, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
0.0012 mg/l , sample collected Aug 14, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Collected
Aug 14, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070815-293PB
Laboratory
MSDH Lab
0.0006 mg/l , sample collected Aug 14, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 14, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Collected
Aug 14, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070815-297PB
Laboratory
MSDH Lab
0.0321 mg/l , sample collected Aug 14, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
0.003 mg/l , sample collected Aug 14, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Collected
Aug 14, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070815-566PB
Laboratory
MSDH Lab
0.0952 mg/l , sample collected Aug 14, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 14, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008

Routine (10).