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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 1,028 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 1,028 samples on record, detections range from November 3, 2003 to June 4, 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 32 of 32 results Nov 3, 2003 Apr 22, 2025
Fluoride 1025 Inorganic Chemical 19 of 36 results Nov 3, 2003 Apr 22, 2025
TTHM 2950 Organic Chemical 8 of 17 results Sep 17, 2007 Nov 18, 2024
Chromium 1020 Inorganic Chemical 7 of 32 results Nov 3, 2003 Apr 22, 2025
Sodium 1052 Inorganic Chemical 7 of 7 results Nov 6, 2009 Apr 3, 2023
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 40 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 38 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 151–160 of 1,028 samples, newest first — collected October 23, 2023 to January 30, 2024. The summary above covers all 1,028.

59 results from the 10 samples listed here: 3 detected, 56 not detected. Across the whole record it is 1,445 of 3,258. 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 151 to 160 of 1,028 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
Jan 30, 2024 12:05
Sampling point
TF106 Treatment Facility TF106
Sample type
Routine
Lab sample
VO-240131-005
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 30, 2024 12:05, sampling point TF106 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 30, 2024 12:05, sampling point TF106 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 30, 2024 12:05, sampling point TF106 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 30, 2024 12:05, sampling point TF106 Dichloromethane 2964 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 30, 2024 12:05, sampling point TF106 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 30, 2024 12:05, sampling point TF106 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 30, 2024 12:05, sampling point TF106 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 30, 2024 12:05, sampling point TF106 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 30, 2024 12:05, sampling point TF106 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 30, 2024 12:05, sampling point TF106 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 30, 2024 12:05, sampling point TF106 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 30, 2024 12:05, sampling point TF106 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 30, 2024 12:05, sampling point TF106 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 30, 2024 12:05, sampling point TF106 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 30, 2024 12:05, sampling point TF106 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 30, 2024 12:05, sampling point TF106 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 30, 2024 12:05, sampling point TF106 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 30, 2024 12:05, sampling point TF106 Benzene 2990 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 30, 2024 12:05, sampling point TF106 Toluene 2991 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 30, 2024 12:05, sampling point TF106 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 30, 2024 12:05, sampling point TF106 Styrene 2996 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Collected
Jan 30, 2024 12:10
Sampling point
TF105 Treatment Facility TF105
Sample type
Routine
Lab sample
VO-240131-004
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 30, 2024 12:10, sampling point TF105 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 30, 2024 12:10, sampling point TF105 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 30, 2024 12:10, sampling point TF105 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 30, 2024 12:10, sampling point TF105 Dichloromethane 2964 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 30, 2024 12:10, sampling point TF105 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 30, 2024 12:10, sampling point TF105 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 30, 2024 12:10, sampling point TF105 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 30, 2024 12:10, sampling point TF105 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 30, 2024 12:10, sampling point TF105 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 30, 2024 12:10, sampling point TF105 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 30, 2024 12:10, sampling point TF105 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 30, 2024 12:10, sampling point TF105 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 30, 2024 12:10, sampling point TF105 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 30, 2024 12:10, sampling point TF105 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 30, 2024 12:10, sampling point TF105 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 30, 2024 12:10, sampling point TF105 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 30, 2024 12:10, sampling point TF105 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 30, 2024 12:10, sampling point TF105 Benzene 2990 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 30, 2024 12:10, sampling point TF105 Toluene 2991 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 30, 2024 12:10, sampling point TF105 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 30, 2024 12:10, sampling point TF105 Styrene 2996 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Collected
Jan 8, 2024 11:55
Sampling point
TF106 Treatment Facility TF106
Sample type
Routine
Lab sample
NI-240109-033
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 8, 2024 11:55, sampling point TF106 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2024 – Mar 31, 2024
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 8, 2024 11:55, sampling point TF106 Nitrate 1040 EPA method QC10107041C Jan 1, 2024 – Mar 31, 2024
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 8, 2024 11:55, sampling point TF106 Nitrite 1041 EPA method QC10107041C Jan 1, 2024 – Mar 31, 2024
Collected
Jan 8, 2024 11:50
Sampling point
TF105 Treatment Facility TF105
Sample type
Routine
Lab sample
NI-240109-034
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 8, 2024 11:50, sampling point TF105 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2024 – Mar 31, 2024
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 8, 2024 11:50, sampling point TF105 Nitrate 1040 EPA method QC10107041C Jan 1, 2024 – Mar 31, 2024
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 8, 2024 11:50, sampling point TF105 Nitrite 1041 EPA method QC10107041C Jan 1, 2024 – Mar 31, 2024
Collected
Dec 18, 2023 12:15
Sampling point
TF106 Treatment Facility TF106
Sample type
Routine
Lab sample
PB-231219-003
Laboratory
MSDH Lab
0.0014 mg/l , sample collected Dec 18, 2023 12:15, sampling point TF106 Copper, Free 1022 EPA method 200.8 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2023 12:15, sampling point TF106 Lead 1030 EPA method 200.8 Not recorded
Collected
Dec 18, 2023 12:10
Sampling point
TF105 Treatment Facility TF105
Sample type
Routine
Lab sample
PB-231219-002
Laboratory
MSDH Lab
0.0022 mg/l , sample collected Dec 18, 2023 12:10, sampling point TF105 Copper, Free 1022 EPA method 200.8 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2023 12:10, sampling point TF105 Lead 1030 EPA method 200.8 Not recorded
Collected
Dec 18, 2023 12:05
Sampling point
TF104 Treatment Plant TF104
Sample type
Routine
Lab sample
PB-231219-001
Laboratory
MSDH Lab
0.0015 mg/l , sample collected Dec 18, 2023 12:05, sampling point TF104 Copper, Free 1022 EPA method 200.8 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2023 12:05, sampling point TF104 Lead 1030 EPA method 200.8 Not recorded
Collected
Oct 23, 2023 12:05
Sampling point
TF106 Treatment Facility TF106
Sample type
Routine
Lab sample
CN-231024-002
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Oct 23, 2023 12:05, sampling point TF106 Cyanide 1024 EPA method QC10204001X Oct 1, 2023 – Dec 31, 2023
Collected
Oct 23, 2023 12:05
Sampling point
TF105 Treatment Facility TF105
Sample type
Routine
Lab sample
CN-231024-001
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Oct 23, 2023 12:05, sampling point TF105 Cyanide 1024 EPA method QC10204001X Oct 1, 2023 – Dec 31, 2023
Collected
Oct 23, 2023 11:55
Sampling point
TF106 Treatment Facility TF106
Sample type
Routine
Lab sample
NI-231024-039
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Oct 23, 2023 11:55, sampling point TF106 Nitrate-Nitrite 1038 EPA method QC10107041C Oct 1, 2023 – Dec 31, 2023
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Oct 23, 2023 11:55, sampling point TF106 Nitrate 1040 EPA method QC10107041C Oct 1, 2023 – Dec 31, 2023
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Oct 23, 2023 11:55, sampling point TF106 Nitrite 1041 EPA method QC10107041C Oct 1, 2023 – Dec 31, 2023

Routine (10).