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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

MS0330002 , Carson Central Water Assn

17 of the 59 analytes this system has been tested for have been detected at least once, across 187 samples on record.

The other 42 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 187 samples on record, detections range from September 24, 2003 to February 24, 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 Carson Central 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 76 of 76 results Jun 24, 2004 Aug 13, 2024
Lead 1030 Inorganic Chemical 60 of 76 results Jun 24, 2004 Aug 13, 2024
Xylenes, Total 2955 Organic Chemical 23 of 44 results May 6, 2008 Feb 24, 2025
Nitrate-Nitrite 1038 Inorganic Chemical 22 of 22 results May 17, 2004 Feb 24, 2025
Nitrate 1040 Inorganic Chemical 22 of 22 results May 17, 2004 Feb 24, 2025
Barium 1010 Inorganic Chemical 10 of 10 results Sep 24, 2003 Feb 24, 2025
Ethylbenzene 2992 Organic Chemical 5 of 44 results May 6, 2008 Mar 11, 2024
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 3 of 8 results Sep 24, 2008 Feb 11, 2025
Sodium 1052 Inorganic Chemical 3 of 3 results Sep 17, 2019 Feb 3, 2025
Chromium 1020 Inorganic Chemical 3 of 10 results Feb 23, 2004 Apr 6, 2015
Nickel 1036 Inorganic Chemical 3 of 10 results Feb 23, 2004 Jan 12, 2009
Gross Alpha Particle Activity 4109 Radionuclide 2 of 4 results Jun 27, 2012 Sep 18, 2012
TTHM 2950 Organic Chemical 2 of 7 results Aug 9, 2007 Sep 24, 2008
Monochloroacetic Acid 2450 Organic Chemical 1 of 5 results Aug 14, 2018 Aug 14, 2018
Combined Radium (-226 & -228) 4010 Radionuclide 1 of 2 results Sep 29, 2011 Sep 29, 2011
Radium-226 4020 Radionuclide 1 of 2 results Sep 29, 2011 Sep 29, 2011
Radium-228 4030 Radionuclide 1 of 2 results Sep 29, 2011 Sep 29, 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 81–90 of 187 samples, newest first — collected February 15, 2012 to July 10, 2012. The summary above covers all 187.

47 results from the 10 samples listed here: 15 detected, 32 not detected. Across the whole record it is 238 of 1,341. 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 Carson Central Water Assn, every result from 81 to 90 of 187 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 10, 2012 05:10
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
120711-048PB
Laboratory
MSDH Lab
0.3528 mg/l , sample collected Jul 10, 2012 05:10, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2010 – Dec 31, 2012
0.002 mg/l , sample collected Jul 10, 2012 05:10, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2010 – Dec 31, 2012
Collected
Jul 10, 2012 05:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
120711-047PB
Laboratory
MSDH Lab
0.1559 mg/l , sample collected Jul 10, 2012 05:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2010 – Dec 31, 2012
0.001 mg/l , sample collected Jul 10, 2012 05:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2010 – Dec 31, 2012
Collected
Jul 10, 2012 05:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
120711-046PB
Laboratory
MSDH Lab
0.6594 mg/l , sample collected Jul 10, 2012 05:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2010 – Dec 31, 2012
0.0016 mg/l , sample collected Jul 10, 2012 05:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2010 – Dec 31, 2012
Collected
Jul 10, 2012 05:15
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
120711-045PB
Laboratory
MSDH Lab
0.785 mg/l , sample collected Jul 10, 2012 05:15, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2010 – Dec 31, 2012
0.0009 mg/l , sample collected Jul 10, 2012 05:15, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2010 – Dec 31, 2012
Collected
Jul 10, 2012 02:45
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
120711-044PB
Laboratory
MSDH Lab
0.3177 mg/l , sample collected Jul 10, 2012 02:45, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2010 – Dec 31, 2012
0.0033 mg/l , sample collected Jul 10, 2012 02:45, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2010 – Dec 31, 2012
Collected
Jun 27, 2012 15:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
201208130249
Laboratory
Radiation Safety Engineering
0.8 pci/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 Jun 27, 2012 15:30, sampling point TF101 Gross Alpha Particle Activity 4109 EPA method 00-02 Not recorded
Collected
May 7, 2012 03:00
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120508-026CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected May 7, 2012 03:00, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2011 – Dec 31, 2013
Collected
Apr 10, 2012 02:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120411-001VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 10, 2012 02:30, sampling point TF101 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 10, 2012 02:30, sampling point TF101 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 10, 2012 02:30, sampling point TF101 Xylenes, Total 2955 EPA method 524.2 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 10, 2012 02:30, sampling point TF101 Dichloromethane 2964 EPA method 524.2 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 10, 2012 02:30, sampling point TF101 O-Dichlorobenzene 2968 EPA method 524.2 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 10, 2012 02:30, sampling point TF101 P-Dichlorobenzene 2969 EPA method 524.2 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 10, 2012 02:30, sampling point TF101 Vinyl Chloride 2976 EPA method 524.2 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 10, 2012 02:30, sampling point TF101 1,1-Dichloroethylene 2977 EPA method 524.2 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 10, 2012 02:30, sampling point TF101 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 10, 2012 02:30, sampling point TF101 1,2-Dichloroethane 2980 EPA method 524.2 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 10, 2012 02:30, sampling point TF101 1,1,1-Trichloroethane 2981 EPA method 524.2 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 10, 2012 02:30, sampling point TF101 Carbon Tetrachloride 2982 EPA method 524.2 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 10, 2012 02:30, sampling point TF101 1,2-Dichloropropane 2983 EPA method 524.2 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 10, 2012 02:30, sampling point TF101 Trichloroethylene 2984 EPA method 524.2 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 10, 2012 02:30, sampling point TF101 1,1,2-Trichloroethane 2985 EPA method 524.2 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 10, 2012 02:30, sampling point TF101 Tetrachloroethylene 2987 EPA method 524.2 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 10, 2012 02:30, sampling point TF101 Chlorobenzene 2989 EPA method 524.2 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 10, 2012 02:30, sampling point TF101 Benzene 2990 EPA method 524.2 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 10, 2012 02:30, sampling point TF101 Toluene 2991 EPA method 524.2 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 10, 2012 02:30, sampling point TF101 Ethylbenzene 2992 EPA method 524.2 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 10, 2012 02:30, sampling point TF101 Styrene 2996 EPA method 524.2 Apr 1, 2012 – Jun 30, 2012
Collected
Apr 9, 2012 03:15
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120412-031IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 03:15, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.01784 mg/l , sample collected Apr 9, 2012 03:15, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 03:15, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.00099 mg/l , sample collected Apr 9, 2012 03:15, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 03:15, sampling point TF101 Fluoride 1025 EPA method 380-75WE Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 03:15, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 03:15, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 03:15, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 03:15, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 03:15, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 03:15, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Collected
Feb 15, 2012 02:00
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120216-045NI
Laboratory
MSDH Lab
0.42 mg/l , sample collected Feb 15, 2012 02:00, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2012 – Dec 31, 2012
0.42 mg/l , sample collected Feb 15, 2012 02:00, sampling point TF101 Nitrate 1040 EPA method 353.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 15, 2012 02:00, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2012 – Dec 31, 2012

Routine (10).