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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

MS0100004 , French Camp W/A #1

23 of the 57 analytes this system has been tested for have been detected at least once, across 291 samples on record.

The other 34 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 291 samples on record, detections range from September 27, 1993 to December 18, 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 French Camp W/A #1, 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 101 of 102 results Sep 27, 1993 Sep 23, 2025
Lead 1030 Inorganic Chemical 56 of 102 results Sep 27, 1993 Sep 23, 2025
Barium 1010 Inorganic Chemical 23 of 23 results May 14, 2002 Dec 9, 2025
TTHM 2950 Organic Chemical 20 of 22 results Jun 28, 2007 Dec 18, 2025
Fluoride 1025 Inorganic Chemical 17 of 23 results Oct 6, 2003 Dec 9, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 17 of 23 results Jun 28, 2007 Sep 25, 2025
Chloroform 2941 Organic Chemical 16 of 17 results Jun 28, 2007 Dec 18, 2025
Trichloroacetic Acid 2452 Organic Chemical 15 of 17 results Aug 11, 2008 Dec 18, 2025
Bromodichloromethane 2943 Organic Chemical 15 of 17 results Jun 28, 2007 Dec 18, 2025
Dibromochloromethane 2944 Organic Chemical 15 of 17 results Jun 28, 2007 Dec 18, 2025
Chromium 1020 Inorganic Chemical 15 of 23 results May 14, 2002 Dec 9, 2025
Dichloroacetic Acid 2451 Organic Chemical 13 of 17 results Aug 11, 2008 Sep 25, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 10 of 10 results Mar 6, 2012 Oct 3, 2012
Dibromoacetic Acid 2454 Organic Chemical 8 of 17 results Aug 11, 2008 Sep 25, 2025
Xylenes, Total 2955 Organic Chemical 7 of 42 results Jul 25, 2012 Oct 29, 2014
Bromoform 2942 Organic Chemical 6 of 17 results Jun 28, 2007 Sep 25, 2025
Sodium 1052 Inorganic Chemical 6 of 6 results Sep 23, 2019 Dec 3, 2024
Selenium 1045 Inorganic Chemical 5 of 23 results Feb 16, 2005 Mar 19, 2008
Cadmium 1015 Inorganic Chemical 4 of 23 results Feb 16, 2005 Jan 23, 2006
Nickel 1036 Inorganic Chemical 3 of 23 results Mar 19, 2008 Apr 23, 2014
Monobromoacetic Acid 2453 Organic Chemical 2 of 17 results Oct 15, 2019 Dec 18, 2024
Ethylbenzene 2992 Organic Chemical 2 of 42 results Jul 25, 2012 Jul 25, 2012
Cyanide 1024 Inorganic Chemical 1 of 20 results Apr 20, 2021 Apr 20, 2021

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 161–170 of 291 samples, newest first — collected May 14, 2012 to August 2, 2012. The summary above covers all 291.

68 results from the 10 samples listed here: 15 detected, 53 not detected. Across the whole record it is 377 of 1,752. 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 French Camp W/A #1, every result from 161 to 170 of 291 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
Aug 2, 2012 12:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120803-081
Laboratory
Radiation Safety Engineering
0.9 pci/l , sample collected Aug 2, 2012 12:30, sampling point TF101 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.517 pci/l Minimum Reporting Level , sample collected Aug 2, 2012 12:30, sampling point TF101 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.517 pci/l Minimum Reporting Level , sample collected Aug 2, 2012 12:30, sampling point TF101 Radium-226 4020 EPA method 903.1 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.46 pci/l Minimum Reporting Level , sample collected Aug 2, 2012 12:30, sampling point TF101 Radium-228 4030 EPA method 904.0 Jul 1, 2012 – Sep 30, 2012
Collected
Aug 2, 2012 12:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120803-081RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 2, 2012 12:30, sampling point TF101 Combined Uranium 4006 EPA method 200.8 Jul 1, 2012 – Sep 30, 2012
Collected
Aug 2, 2012 12:00
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
120803-044RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 2, 2012 12:00, sampling point TF102 Combined Uranium 4006 EPA method 200.8 Jul 1, 2012 – Sep 30, 2012
Collected
Jul 25, 2012 09:30
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
120726-009VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2012 09:30, sampling point TF102 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2012 09:30, sampling point TF102 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
9.9 ug/l , sample collected Jul 25, 2012 09:30, sampling point TF102 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2012 09:30, sampling point TF102 Dichloromethane 2964 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2012 09:30, sampling point TF102 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2012 09:30, sampling point TF102 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2012 09:30, sampling point TF102 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2012 09:30, sampling point TF102 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2012 09:30, sampling point TF102 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2012 09:30, sampling point TF102 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2012 09:30, sampling point TF102 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2012 09:30, sampling point TF102 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2012 09:30, sampling point TF102 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2012 09:30, sampling point TF102 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2012 09:30, sampling point TF102 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2012 09:30, sampling point TF102 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2012 09:30, sampling point TF102 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2012 09:30, sampling point TF102 Benzene 2990 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2012 09:30, sampling point TF102 Toluene 2991 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
1.58 ug/l , sample collected Jul 25, 2012 09:30, sampling point TF102 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2012 09:30, sampling point TF102 Styrene 2996 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Collected
Jul 25, 2012 09:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120726-008VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2012 09:30, sampling point TF101 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2012 09:30, sampling point TF101 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
9.97 ug/l , sample collected Jul 25, 2012 09:30, sampling point TF101 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2012 09:30, sampling point TF101 Dichloromethane 2964 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2012 09:30, sampling point TF101 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2012 09:30, sampling point TF101 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2012 09:30, sampling point TF101 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2012 09:30, sampling point TF101 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2012 09:30, sampling point TF101 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2012 09:30, sampling point TF101 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2012 09:30, sampling point TF101 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2012 09:30, sampling point TF101 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2012 09:30, sampling point TF101 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2012 09:30, sampling point TF101 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2012 09:30, sampling point TF101 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2012 09:30, sampling point TF101 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2012 09:30, sampling point TF101 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2012 09:30, sampling point TF101 Benzene 2990 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2012 09:30, sampling point TF101 Toluene 2991 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
1.53 ug/l , sample collected Jul 25, 2012 09:30, sampling point TF101 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2012 09:30, sampling point TF101 Styrene 2996 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Collected
Jul 9, 2012 01:30
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
120710-017TH
Laboratory
MSDH Lab
12.4 ug/l , sample collected Jul 9, 2012 01:30, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 9, 2012 01:30, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
8.97 ug/l , sample collected Jul 9, 2012 01:30, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
5.9 ug/l , sample collected Jul 9, 2012 01:30, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
27.3 ug/l , sample collected Jul 9, 2012 01:30, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2011 – Dec 31, 2013
Collected
Jul 9, 2012 01:30
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
120710-017HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Jul 9, 2012 01:30, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.008 mg/l , sample collected Jul 9, 2012 01:30, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.007 mg/l , sample collected Jul 9, 2012 01:30, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 9, 2012 01:30, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
0.003 mg/l , sample collected Jul 9, 2012 01:30, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.018 mg/l , sample collected Jul 9, 2012 01:30, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2011 – Dec 31, 2013
Collected
May 14, 2012 10:30
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
120515-010
Laboratory
Radiation Safety Engineering
0.4 pci/l , sample collected May 14, 2012 10:30, sampling point TF102 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.54 pci/l Minimum Reporting Level , sample collected May 14, 2012 10:30, sampling point TF102 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.409 pci/l Minimum Reporting Level , sample collected May 14, 2012 10:30, sampling point TF102 Radium-226 4020 EPA method 903.1 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.54 pci/l Minimum Reporting Level , sample collected May 14, 2012 10:30, sampling point TF102 Radium-228 4030 EPA method 904.0 Apr 1, 2012 – Jun 30, 2012
Collected
May 14, 2012 10:00
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120515-172
Laboratory
Radiation Safety Engineering
0.9 pci/l , sample collected May 14, 2012 10:00, sampling point TF101 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.517 pci/l Minimum Reporting Level , sample collected May 14, 2012 10:00, sampling point TF101 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.517 pci/l Minimum Reporting Level , sample collected May 14, 2012 10:00, sampling point TF101 Radium-226 4020 EPA method 903.1 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.46 pci/l Minimum Reporting Level , sample collected May 14, 2012 10:00, sampling point TF101 Radium-228 4030 EPA method 904.0 Apr 1, 2012 – Jun 30, 2012
Collected
May 14, 2012 10:00
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120515-172RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 14, 2012 10:00, sampling point TF101 Combined Uranium 4006 EPA method 200.8 Apr 1, 2012 – Jun 30, 2012

Routine (10).