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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

MS0770002 , Clara Water Association

35 of the 74 analytes this system has been tested for have been detected at least once, across 1,031 samples on record.

The other 39 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 1,031 samples on record, detections range from November 3, 2003 to August 6, 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 Clara 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 799 of 801 results Jun 24, 2004 Jun 4, 2026
Lead 1030 Inorganic Chemical 507 of 801 results Jun 24, 2004 Jun 3, 2026
Barium 1010 Inorganic Chemical 35 of 35 results Nov 3, 2003 Aug 6, 2026
Fluoride 1025 Inorganic Chemical 22 of 39 results Nov 3, 2003 Aug 6, 2026
Sodium 1052 Inorganic Chemical 10 of 10 results Nov 6, 2009 Aug 6, 2026
TTHM 2950 Organic Chemical 8 of 17 results Sep 17, 2007 Nov 18, 2024
Chromium 1020 Inorganic Chemical 7 of 35 results Nov 3, 2003 Apr 22, 2025
Sulfate 1055 Inorganic Chemical 7 of 8 results Nov 3, 2003 Sep 1, 2021
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 6 of 16 results Aug 3, 2010 Nov 18, 2024
Chloroform 2941 Organic Chemical 6 of 12 results Sep 17, 2007 Nov 18, 2024
Nickel 1036 Inorganic Chemical 5 of 32 results Nov 3, 2003 Apr 22, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 10 results Dec 6, 2011 Jul 10, 2012
Calcium 1016 Inorganic Chemical 4 of 4 results Nov 6, 2009 Sep 1, 2021
Alkalinity, Total 1927 Water Quality 4 of 4 results Nov 6, 2009 Sep 1, 2021
Chloride 1017 Inorganic Chemical 3 of 4 results Sep 1, 2021 Sep 1, 2021
Conductivity @ 25 C Umhos/CM 1064 Water Quality 3 of 3 results Sep 1, 2021 Sep 1, 2021
Color 1905 Water Quality 3 of 4 results Nov 6, 2009 Sep 1, 2021
Dichloroacetic Acid 2451 Organic Chemical 2 of 11 results Aug 29, 2016 Nov 18, 2024
Carbon Tetrachloride 2982 Organic Chemical 2 of 42 results Oct 24, 2022 Oct 24, 2022
Trichloroacetic Acid 2452 Organic Chemical 1 of 11 results Nov 18, 2024 Nov 18, 2024
Bromodichloromethane 2943 Organic Chemical 1 of 12 results Nov 18, 2024 Nov 18, 2024
Dibromochloromethane 2944 Organic Chemical 1 of 12 results Nov 18, 2024 Nov 18, 2024
Cyanide 1024 Inorganic Chemical 1 of 40 results Aug 22, 2022 Aug 22, 2022
Monobromoacetic Acid 2453 Organic Chemical 1 of 11 results Oct 26, 2020 Oct 26, 2020
Iron 1028 Inorganic Chemical 1 of 1 result Nov 6, 2009 Nov 6, 2009
Magnesium 1031 Inorganic Chemical 1 of 1 result Nov 6, 2009 Nov 6, 2009
Manganese 1032 Inorganic Chemical 1 of 1 result Nov 6, 2009 Nov 6, 2009
Potassium 1042 Inorganic Chemical 1 of 1 result Nov 6, 2009 Nov 6, 2009
Residue, Total, Filterable 1057 Water Quality 1 of 1 result Nov 6, 2009 Nov 6, 2009
Alkalinity, Caco3 Stability 1067 Water Quality 1 of 1 result Nov 6, 2009 Nov 6, 2009
Carbon Dioxide 1901 Water Quality 1 of 1 result Nov 6, 2009 Nov 6, 2009
Hardness, Total (As Caco3) 1915 Water Quality 1 of 1 result Nov 6, 2009 Nov 6, 2009
Iron, Field Result FEFD Inorganic Chemical 1 of 1 result Nov 6, 2009 Nov 6, 2009
Calculated Sodium NACA Water Quality 1 of 1 result Nov 6, 2009 Nov 6, 2009
PH, Field Result PHFD Water Quality 1 of 1 result Nov 6, 2009 Nov 6, 2009

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 871–880 of 1,031 samples, newest first — collected October 27, 2009 to March 29, 2010. The summary above covers all 1,031.

54 results from the 10 samples listed here: 28 detected, 26 not detected. Across the whole record it is 1,454 of 3,338. 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 Clara Water Association, every result from 871 to 880 of 1,031 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
Mar 29, 2010
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
100331-021PB
Laboratory
MSDH Lab
0.9942 mg/l , sample collected Mar 29, 2010, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2010 – Jun 30, 2010
0.001 mg/l , sample collected Mar 29, 2010, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2010 – Jun 30, 2010
Collected
Mar 29, 2010
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
100331-016PB
Laboratory
MSDH Lab
1.1954 mg/l , sample collected Mar 29, 2010, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2010 – Jun 30, 2010
0.0044 mg/l , sample collected Mar 29, 2010, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2010 – Jun 30, 2010
Collected
Mar 1, 2010
Sampling point
TF104 Treatment Plant TF104
Sample type
Routine
Lab sample
100302-013IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 1, 2010, sampling point TF104 Arsenic 1005 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.011457 mg/l , sample collected Mar 1, 2010, sampling point TF104 Barium 1010 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 1, 2010, sampling point TF104 Cadmium 1015 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 1, 2010, sampling point TF104 Chromium 1020 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 1, 2010, sampling point TF104 Fluoride 1025 EPA method 380-75WE Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 1, 2010, sampling point TF104 Mercury 1035 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 1, 2010, sampling point TF104 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Mar 1, 2010, sampling point TF104 Selenium 1045 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 1, 2010, sampling point TF104 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 Mar 1, 2010, sampling point TF104 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 Mar 1, 2010, sampling point TF104 Thallium, Total 1085 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Collected
Mar 1, 2010
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
100302-012IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 1, 2010, sampling point TF103 Arsenic 1005 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.011817 mg/l , sample collected Mar 1, 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 Mar 1, 2010, sampling point TF103 Cadmium 1015 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 1, 2010, sampling point TF103 Chromium 1020 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 1, 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 Mar 1, 2010, sampling point TF103 Mercury 1035 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 1, 2010, sampling point TF103 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Mar 1, 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 Mar 1, 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 Mar 1, 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 Mar 1, 2010, sampling point TF103 Thallium, Total 1085 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Collected
Nov 6, 2009
Sampling point
WL004 Well WL004
Sample type
Routine
Lab sample
091110-001PC
Laboratory
MSDH Lab
4.08 mg/l 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 Nov 6, 2009, sampling point WL004 Calcium 1016 EPA method 200.8 Not recorded
Not detected below 2.5 mg/l Minimum Reporting Level , sample collected Nov 6, 2009, sampling point WL004 Chloride 1017 EPA method 300.0 Not recorded
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Nov 6, 2009, sampling point WL004 Fluoride 1025 EPA method 380-75WE Not recorded
0.457 mg/l 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 Nov 6, 2009, sampling point WL004 Iron 1028 EPA method 200.8 Not recorded
0.457 mg/l 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 Nov 6, 2009, sampling point WL004 Magnesium 1031 EPA method 200.8 Not recorded
0.047 mg/l 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 Nov 6, 2009, sampling point WL004 Manganese 1032 EPA method 200.8 Not recorded
2.88 mg/l 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 Nov 6, 2009, sampling point WL004 Potassium 1042 EPA method 200.8 Not recorded
11.3 mg/l 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 Nov 6, 2009, sampling point WL004 Sodium 1052 EPA method 200.8 Not recorded
Not detected below 2.5 mg/l Minimum Reporting Level , sample collected Nov 6, 2009, sampling point WL004 Sulfate 1055 EPA method 300.0 Not recorded
60 mg/l 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 Nov 6, 2009, sampling point WL004 Residue, Total, Filterable 1057 EPA method CALCUL LAB Not recorded
0 mg/l This result is recorded as a detection, and the figure the agency wrote — "0" — 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 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 Nov 6, 2009, sampling point WL004 Alkalinity, Caco3 Stability 1067 EPA method 2320B Not recorded
19 mg/l 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 Nov 6, 2009, sampling point WL004 Carbon Dioxide 1901 EPA method CALCUL LAB Not recorded
20 units 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 Nov 6, 2009, sampling point WL004 Color 1905 EPA method 2120B Not recorded
18.9 mg/l 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 Nov 6, 2009, sampling point WL004 Hardness, Total (As Caco3) 1915 EPA method CALCUL LAB Not recorded
10.9 mg/l 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 Nov 6, 2009, sampling point WL004 Alkalinity, Total 1927 EPA method 2320B Not recorded
0.87 mg/l 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 Nov 6, 2009, sampling point WL004 Iron, Field Result FEFD EPA method 3500AL-D Not recorded
17.4 mg/l 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 Nov 6, 2009, sampling point WL004 Calculated Sodium NACA EPA method CALCUL LAB Not recorded
6.7 ph 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 Nov 6, 2009, sampling point WL004 PH, Field Result PHFD EPA method 3500AL-D Not recorded
Collected
Oct 27, 2009
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
091028-037PB
Laboratory
MSDH Lab
1.2363 mg/l , sample collected Oct 27, 2009, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 27, 2009, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2009 – Dec 31, 2009
Collected
Oct 27, 2009
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
091028-036PB
Laboratory
MSDH Lab
0.0482 mg/l , sample collected Oct 27, 2009, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2009 – Dec 31, 2009
0.0026 mg/l , sample collected Oct 27, 2009, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2009 – Dec 31, 2009
Collected
Oct 27, 2009
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
091028-027PB
Laboratory
MSDH Lab
0.1867 mg/l , sample collected Oct 27, 2009, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2009 – Dec 31, 2009
0.0007 mg/l , sample collected Oct 27, 2009, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2009 – Dec 31, 2009
Collected
Oct 27, 2009
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
091028-026PB
Laboratory
MSDH Lab
0.7079 mg/l , sample collected Oct 27, 2009, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 27, 2009, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2009 – Dec 31, 2009
Collected
Oct 27, 2009
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
091028-025PB
Laboratory
MSDH Lab
0.1563 mg/l , sample collected Oct 27, 2009, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 27, 2009, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2009 – Dec 31, 2009

Routine (10).