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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

MS0150003 , Crystal Springs Water Service

31 of the 110 analytes this system has been tested for have been detected at least once, across 472 samples on record.

The other 79 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 472 samples on record, detections range from July 14, 1992 to February 17, 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 Crystal Springs Water Service, 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 181 of 320 results Jan 13, 1993 Aug 8, 2024
Lead 1030 Inorganic Chemical 93 of 320 results Jul 14, 1992 Aug 8, 2024
Nitrate-Nitrite 1038 Inorganic Chemical 24 of 24 results May 3, 2004 Feb 17, 2026
Nitrate 1040 Inorganic Chemical 24 of 24 results May 3, 2004 Feb 17, 2026
Barium 1010 Inorganic Chemical 12 of 12 results Apr 9, 2002 Feb 5, 2025
Nickel 1036 Inorganic Chemical 12 of 12 results Apr 9, 2002 Feb 5, 2025
TTHM 2950 Organic Chemical 11 of 17 results May 17, 2004 Oct 13, 2025
Fluoride 1025 Inorganic Chemical 11 of 14 results Sep 8, 2003 Jan 27, 2022
Bromoform 2942 Organic Chemical 6 of 10 results Sep 11, 2006 Oct 13, 2025
Dibromochloromethane 2944 Organic Chemical 6 of 10 results Sep 11, 2006 Oct 13, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 6 of 14 results Oct 25, 2005 Mar 13, 2025
Sodium 1052 Inorganic Chemical 4 of 4 results Sep 23, 2019 Jan 27, 2022
Sulfate 1055 Inorganic Chemical 4 of 5 results Apr 9, 2002 Jan 27, 2022
Gross Alpha Particle Activity 4109 Radionuclide 4 of 6 results Sep 21, 2009 Jul 11, 2012
Chromium 1020 Inorganic Chemical 3 of 12 results Jan 26, 2004 Apr 14, 2014
Combined Radium (-226 & -228) 4010 Radionuclide 3 of 4 results Sep 21, 2009 Sep 29, 2011
Radium-228 4030 Radionuclide 3 of 4 results Sep 21, 2009 Sep 29, 2011
Selenium 1045 Inorganic Chemical 3 of 12 results Jan 26, 2004 Mar 24, 2008
Mercury 1035 Inorganic Chemical 2 of 12 results Mar 24, 2008 May 10, 2022
Calcium 1016 Inorganic Chemical 2 of 2 results Jan 27, 2022 Jan 27, 2022
Chloride 1017 Inorganic Chemical 2 of 2 results Jan 27, 2022 Jan 27, 2022
Conductivity @ 25 C Umhos/CM 1064 Water Quality 2 of 2 results Jan 27, 2022 Jan 27, 2022
Alkalinity, Total 1927 Water Quality 2 of 2 results Jan 27, 2022 Jan 27, 2022
Gross Alpha, Excl. Radon & U 4000 Radionuclide 2 of 4 results Sep 21, 2009 Mar 9, 2010
Radium-226 4020 Radionuclide 2 of 4 results Sep 21, 2009 Mar 9, 2010
Gross Beta Particle Activity 4100 Radionuclide 2 of 2 results Sep 21, 2009 Mar 9, 2010
Monochloroacetic Acid 2450 Organic Chemical 1 of 8 results Jul 18, 2018 Jul 18, 2018
Bromodichloromethane 2943 Organic Chemical 1 of 10 results Aug 18, 2014 Aug 18, 2014
Dibromoacetic Acid 2454 Organic Chemical 1 of 8 results Aug 12, 2008 Aug 12, 2008
Arsenic 1005 Inorganic Chemical 1 of 12 results Jan 23, 2006 Jan 23, 2006
Cadmium 1015 Inorganic Chemical 1 of 12 results Jan 23, 2006 Jan 23, 2006

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 101–110 of 472 samples, newest first — collected September 27, 2016 to July 16, 2018. The summary above covers all 472.

70 results from the 10 samples listed here: 6 detected, 64 not detected. Across the whole record it is 431 of 1,515. 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 Crystal Springs Water Service, every result from 101 to 110 of 472 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 16, 2018 10:59
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
180717-016RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 16, 2018 10:59, sampling point TF080 Combined Uranium 4006 EPA method 200.8 Jan 1, 2012 – Dec 31, 2020
Collected
May 22, 2018 11:08
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
180523-001VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 22, 2018 11:08, sampling point TF080 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 22, 2018 11:08, sampling point TF080 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 22, 2018 11:08, sampling point TF080 Xylenes, Total 2955 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 22, 2018 11:08, sampling point TF080 Dichloromethane 2964 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 22, 2018 11:08, sampling point TF080 O-Dichlorobenzene 2968 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 22, 2018 11:08, sampling point TF080 P-Dichlorobenzene 2969 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 22, 2018 11:08, sampling point TF080 Vinyl Chloride 2976 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 22, 2018 11:08, sampling point TF080 1,1-Dichloroethylene 2977 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 22, 2018 11:08, sampling point TF080 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 22, 2018 11:08, sampling point TF080 1,2-Dichloroethane 2980 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 22, 2018 11:08, sampling point TF080 1,1,1-Trichloroethane 2981 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 22, 2018 11:08, sampling point TF080 Carbon Tetrachloride 2982 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 22, 2018 11:08, sampling point TF080 1,2-Dichloropropane 2983 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 22, 2018 11:08, sampling point TF080 Trichloroethylene 2984 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 22, 2018 11:08, sampling point TF080 1,1,2-Trichloroethane 2985 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 22, 2018 11:08, sampling point TF080 Tetrachloroethylene 2987 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 22, 2018 11:08, sampling point TF080 Chlorobenzene 2989 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 22, 2018 11:08, sampling point TF080 Benzene 2990 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 22, 2018 11:08, sampling point TF080 Toluene 2991 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 22, 2018 11:08, sampling point TF080 Ethylbenzene 2992 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 22, 2018 11:08, sampling point TF080 Styrene 2996 EPA method 524.2 Not recorded
Collected
May 2, 2018 11:07
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
180503-020CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected May 2, 2018 11:07, sampling point TF080 Cyanide 1024 EPA method QC10204001X Jan 1, 2017 – Dec 31, 2019
Collected
Jan 29, 2018 12:41
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
180130-002NI
Laboratory
MSDH Lab
1.89 mg/l , sample collected Jan 29, 2018 12:41, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2018 – Dec 31, 2018
1.89 mg/l , sample collected Jan 29, 2018 12:41, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2018 – Dec 31, 2018
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 29, 2018 12:41, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2018 – Dec 31, 2018
Collected
Jun 28, 2017 17:32
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
170629-014VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 28, 2017 17:32, sampling point TF080 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2017 – Dec 31, 2017
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 28, 2017 17:32, sampling point TF080 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2017 – Dec 31, 2017
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 28, 2017 17:32, sampling point TF080 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2017 – Dec 31, 2017
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 28, 2017 17:32, sampling point TF080 Dichloromethane 2964 EPA method 524.2 Jan 1, 2017 – Dec 31, 2017
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 28, 2017 17:32, sampling point TF080 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2017 – Dec 31, 2017
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 28, 2017 17:32, sampling point TF080 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2017 – Dec 31, 2017
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 28, 2017 17:32, sampling point TF080 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2017 – Dec 31, 2017
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 28, 2017 17:32, sampling point TF080 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2017 – Dec 31, 2017
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 28, 2017 17:32, sampling point TF080 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2017 – Dec 31, 2017
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 28, 2017 17:32, sampling point TF080 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2017 – Dec 31, 2017
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 28, 2017 17:32, sampling point TF080 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2017 – Dec 31, 2017
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 28, 2017 17:32, sampling point TF080 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2017 – Dec 31, 2017
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 28, 2017 17:32, sampling point TF080 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2017 – Dec 31, 2017
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 28, 2017 17:32, sampling point TF080 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2017 – Dec 31, 2017
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 28, 2017 17:32, sampling point TF080 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2017 – Dec 31, 2017
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 28, 2017 17:32, sampling point TF080 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2017 – Dec 31, 2017
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 28, 2017 17:32, sampling point TF080 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2017 – Dec 31, 2017
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 28, 2017 17:32, sampling point TF080 Benzene 2990 EPA method 524.2 Jan 1, 2017 – Dec 31, 2017
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 28, 2017 17:32, sampling point TF080 Toluene 2991 EPA method 524.2 Jan 1, 2017 – Dec 31, 2017
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 28, 2017 17:32, sampling point TF080 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2017 – Dec 31, 2017
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 28, 2017 17:32, sampling point TF080 Styrene 2996 EPA method 524.2 Jan 1, 2017 – Dec 31, 2017
Collected
Jan 24, 2017 09:27
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
170125-015NI
Laboratory
MSDH Lab
2.4 mg/l , sample collected Jan 24, 2017 09:27, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
2.4 mg/l , sample collected Jan 24, 2017 09:27, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 24, 2017 09:27, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Collected
Dec 21, 2016 14:01
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
201612270387
Laboratory
Eea Laboratories
Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 21, 2016 14:01, sampling point TF080 Dalapon 2031 EPA method 515.4 Not recorded
Not detected below 5 ug/l Minimum Reporting Level , sample collected Dec 21, 2016 14:01, sampling point TF080 Endothall 2033 EPA method 548.1 Not recorded
Not detected below 0.1 ug/l Minimum Reporting Level , sample collected Dec 21, 2016 14:01, sampling point TF080 Picloram 2040 EPA method 515.4 Not recorded
Not detected below 0.2 ug/l Minimum Reporting Level , sample collected Dec 21, 2016 14:01, sampling point TF080 Dinoseb 2041 EPA method 515.4 Not recorded
Not detected below 0.005 ng/l Minimum Reporting Level , sample collected Dec 21, 2016 14:01, sampling point TF080 2,3,7,8-TCDD 2063 EPA method 1613B Not recorded
Not detected below 0.1 ug/l Minimum Reporting Level , sample collected Dec 21, 2016 14:01, sampling point TF080 2,4-D 2105 EPA method 515.4 Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected Dec 21, 2016 14:01, sampling point TF080 2,4-DB 2106 EPA method 515.4 Not recorded
Not detected below 0.2 ug/l Minimum Reporting Level , sample collected Dec 21, 2016 14:01, sampling point TF080 2,4,5-TP 2110 EPA method 515.4 Not recorded
Not detected below 0.2 ug/l Minimum Reporting Level , sample collected Dec 21, 2016 14:01, sampling point TF080 2,4,5-T 2111 EPA method 515.4 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 21, 2016 14:01, sampling point TF080 Dichlorprop 2206 EPA method 515.4 Not recorded
Not detected below 0.04 ug/l Minimum Reporting Level , sample collected Dec 21, 2016 14:01, sampling point TF080 Pentachlorophenol 2326 EPA method 515.4 Not recorded
Not detected below 0.1 ug/l Minimum Reporting Level , sample collected Dec 21, 2016 14:01, sampling point TF080 Dicamba 2440 EPA method 515.4 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 21, 2016 14:01, sampling point TF080 Bentazon 2625 EPA method 515.4 Not recorded
Collected
Nov 29, 2016 10:02
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
161129-059NI
Laboratory
MSDH Lab
1.6 mg/l , sample collected Nov 29, 2016 10:02, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2016 – Dec 31, 2016
1.6 mg/l , sample collected Nov 29, 2016 10:02, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2016 – Dec 31, 2016
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Nov 29, 2016 10:02, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2016 – Dec 31, 2016
Collected
Oct 18, 2016 13:27
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
161019-005S1
Laboratory
MSDH Lab
Not detected below 0.02 ug/l Minimum Reporting Level , sample collected Oct 18, 2016 13:27, sampling point TF080 1,2-Dibromo-3-Chloropropane 2931 EPA method 504.1 Not recorded
Not detected below 0.02 ug/l Minimum Reporting Level , sample collected Oct 18, 2016 13:27, sampling point TF080 Ethylene Dibromide 2946 EPA method 504.1 Not recorded
Collected
Sep 27, 2016 14:42
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
160928-001S1
Laboratory
MSDH Lab
Not detected below 0.02 ug/l Minimum Reporting Level , sample collected Sep 27, 2016 14:42, sampling point TF080 1,2-Dibromo-3-Chloropropane 2931 EPA method 504.1 Not recorded
Not detected below 0.02 ug/l Minimum Reporting Level , sample collected Sep 27, 2016 14:42, sampling point TF080 Ethylene Dibromide 2946 EPA method 504.1 Not recorded

Routine (10).