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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 31–40 of 187 samples, newest first — collected August 14, 2018 to June 8, 2021. The summary above covers all 187.

71 results from the 10 samples listed here: 12 detected, 59 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 31 to 40 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
Jun 8, 2021 16:00
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
CN-210609-019
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Jun 8, 2021 16:00, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2020 – Dec 31, 2022
Collected
Mar 10, 2021 12:10
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
NI-210311-015
Laboratory
MSDH Lab
0.474 mg/l , sample collected Mar 10, 2021 12:10, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
0.474 mg/l , sample collected Mar 10, 2021 12:10, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 10, 2021 12:10, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Collected
Apr 22, 2020 02:00
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
200423-018VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 22, 2020 02:00, sampling point TF101 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 22, 2020 02:00, sampling point TF101 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
3.013 ug/l , sample collected Apr 22, 2020 02:00, sampling point TF101 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 22, 2020 02:00, sampling point TF101 Dichloromethane 2964 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 22, 2020 02:00, sampling point TF101 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 22, 2020 02:00, sampling point TF101 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 22, 2020 02:00, sampling point TF101 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 22, 2020 02:00, sampling point TF101 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 22, 2020 02:00, sampling point TF101 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 22, 2020 02:00, sampling point TF101 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 22, 2020 02:00, sampling point TF101 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 22, 2020 02:00, sampling point TF101 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 22, 2020 02:00, sampling point TF101 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 22, 2020 02:00, sampling point TF101 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 22, 2020 02:00, sampling point TF101 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 22, 2020 02:00, sampling point TF101 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 22, 2020 02:00, sampling point TF101 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 22, 2020 02:00, sampling point TF101 Benzene 2990 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 22, 2020 02:00, sampling point TF101 Toluene 2991 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 22, 2020 02:00, sampling point TF101 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 22, 2020 02:00, sampling point TF101 Styrene 2996 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Collected
Feb 25, 2020 15:50
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
200226-006NI
Laboratory
MSDH Lab
0.5 mg/l , sample collected Feb 25, 2020 15:50, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
0.5 mg/l , sample collected Feb 25, 2020 15:50, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 25, 2020 15:50, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Collected
Nov 13, 2019 14:00
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
191114-014NI
Laboratory
MSDH Lab
0.51 mg/l , sample collected Nov 13, 2019 14:00, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2019 – Dec 31, 2019
0.51 mg/l , sample collected Nov 13, 2019 14:00, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2019 – Dec 31, 2019
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Nov 13, 2019 14:00, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2019 – Dec 31, 2019
Collected
Sep 17, 2019 11:00
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
680-174320-63
Laboratory
Test America-Savannah
26000 ug/l , sample collected Sep 17, 2019 11:00, sampling point TF101 Sodium 1052 EPA method 200.7 Not recorded
Collected
Jul 16, 2019 15:45
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
190717-016VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 16, 2019 15:45, sampling point TF101 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 16, 2019 15:45, sampling point TF101 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2019 – Dec 31, 2019
3.564 ug/l , sample collected Jul 16, 2019 15:45, sampling point TF101 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 16, 2019 15:45, sampling point TF101 Dichloromethane 2964 EPA method 524.2 Jan 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 16, 2019 15:45, sampling point TF101 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 16, 2019 15:45, sampling point TF101 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 16, 2019 15:45, sampling point TF101 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 16, 2019 15:45, sampling point TF101 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 16, 2019 15:45, sampling point TF101 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 16, 2019 15:45, sampling point TF101 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 16, 2019 15:45, sampling point TF101 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 16, 2019 15:45, sampling point TF101 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 16, 2019 15:45, sampling point TF101 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 16, 2019 15:45, sampling point TF101 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 16, 2019 15:45, sampling point TF101 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 16, 2019 15:45, sampling point TF101 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 16, 2019 15:45, sampling point TF101 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 16, 2019 15:45, sampling point TF101 Benzene 2990 EPA method 524.2 Jan 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 16, 2019 15:45, sampling point TF101 Toluene 2991 EPA method 524.2 Jan 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 16, 2019 15:45, sampling point TF101 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 16, 2019 15:45, sampling point TF101 Styrene 2996 EPA method 524.2 Jan 1, 2019 – Dec 31, 2019
Collected
Mar 26, 2019 14:15
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
190327-024IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 26, 2019 14:15, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
0.0152 mg/l , sample collected Mar 26, 2019 14:15, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 26, 2019 14:15, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 26, 2019 14:15, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 26, 2019 14:15, sampling point TF101 Fluoride 1025 EPA method 300.0 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 26, 2019 14:15, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 26, 2019 14:15, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 26, 2019 14:15, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 26, 2019 14:15, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 26, 2019 14:15, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 26, 2019 14:15, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Collected
Mar 5, 2019 14:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
190306-010CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Mar 5, 2019 14:30, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2017 – Dec 31, 2019
Collected
Aug 14, 2018 04:00
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
180815-002HA
Laboratory
MSDH Lab
0.002 mg/l , sample collected Aug 14, 2018 04:00, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 14, 2018 04:00, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 14, 2018 04:00, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 14, 2018 04:00, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 14, 2018 04:00, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.002 mg/l , sample collected Aug 14, 2018 04:00, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2017 – Dec 31, 2019

Routine (10).