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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

MS0040029 , Conehoma Water Assn #2

21 of the 57 analytes this system has been tested for have been detected at least once, across 245 samples on record.

The other 36 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 245 samples on record, detections range from November 9, 1993 to December 2, 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 Conehoma Water Assn #2, 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 117 of 152 results Nov 9, 1993 Jun 4, 2025
Lead 1030 Inorganic Chemical 53 of 152 results Nov 9, 1993 Jun 4, 2025
TTHM 2950 Organic Chemical 18 of 19 results May 5, 2004 Dec 2, 2025
Dibromochloromethane 2944 Organic Chemical 13 of 15 results Jul 15, 2008 Dec 2, 2025
Chloroform 2941 Organic Chemical 12 of 15 results Jul 15, 2008 Dec 2, 2025
Bromodichloromethane 2943 Organic Chemical 12 of 15 results Jul 15, 2008 Dec 2, 2025
Barium 1010 Inorganic Chemical 11 of 11 results Jan 29, 2002 Jan 14, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 9 of 19 results Jun 27, 2007 Feb 26, 2024
Chromium 1020 Inorganic Chemical 6 of 11 results Jan 29, 2002 Jan 14, 2025
Dichloroacetic Acid 2451 Organic Chemical 6 of 14 results Jul 15, 2008 May 9, 2024
Nickel 1036 Inorganic Chemical 5 of 11 results Feb 14, 2005 Sep 19, 2018
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 5 results Dec 8, 2011 Jul 13, 2012
Fluoride 1025 Inorganic Chemical 4 of 11 results Feb 14, 2005 Jan 14, 2025
Sodium 1052 Inorganic Chemical 3 of 3 results Sep 17, 2019 Oct 15, 2024
Trichloroacetic Acid 2452 Organic Chemical 3 of 14 results Jul 15, 2008 Dec 7, 2023
Monochloroacetic Acid 2450 Organic Chemical 2 of 14 results Jul 15, 2008 Mar 19, 2019
Sulfate 1055 Inorganic Chemical 2 of 2 results Jan 29, 2002 Jan 14, 2004
Bromoform 2942 Organic Chemical 1 of 15 results Aug 6, 2024 Aug 6, 2024
Monobromoacetic Acid 2453 Organic Chemical 1 of 14 results Jul 15, 2008 Jul 15, 2008
Cadmium 1015 Inorganic Chemical 1 of 11 results Feb 14, 2005 Feb 14, 2005
Selenium 1045 Inorganic Chemical 1 of 11 results Feb 14, 2005 Feb 14, 2005

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 245 samples, newest first — collected July 6, 2011 to July 12, 2012. The summary above covers all 245.

49 results from the 10 samples listed here: 4 detected, 45 not detected. Across the whole record it is 285 of 847. 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 Conehoma Water Assn #2, every result from 101 to 110 of 245 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 12, 2012 13:35
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120713-025
Laboratory
Radiation Safety Engineering
0.8 pci/l , sample collected Jul 12, 2012 13:35, sampling point TF101 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.36 pci/l Minimum Reporting Level , sample collected Jul 12, 2012 13:35, sampling point TF101 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.278 pci/l Minimum Reporting Level , sample collected Jul 12, 2012 13:35, sampling point TF101 Radium-226 4020 EPA method 903.1 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.36 pci/l Minimum Reporting Level , sample collected Jul 12, 2012 13:35, sampling point TF101 Radium-228 4030 EPA method 904.0 Jul 1, 2012 – Sep 30, 2012
Collected
Jul 12, 2012 13:35
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120713-025RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 12, 2012 13:35, sampling point TF101 Combined Uranium 4006 EPA method 200.8 Jul 1, 2012 – Sep 30, 2012
Collected
Apr 18, 2012 09:15
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120419-021
Laboratory
Radiation Safety Engineering
0.8 pci/l , sample collected Apr 18, 2012 09:15, sampling point TF101 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.36 pci/l Minimum Reporting Level , sample collected Apr 18, 2012 09:15, sampling point TF101 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.278 pci/l Minimum Reporting Level , sample collected Apr 18, 2012 09:15, sampling point TF101 Radium-226 4020 EPA method 903.1 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.36 pci/l Minimum Reporting Level , sample collected Apr 18, 2012 09:15, sampling point TF101 Radium-228 4030 EPA method 904.0 Apr 1, 2012 – Jun 30, 2012
Collected
Apr 18, 2012 09:15
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120419-021RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 18, 2012 09:15, sampling point TF101 Combined Uranium 4006 EPA method 200.8 Apr 1, 2012 – Jun 30, 2012
Collected
Feb 22, 2012 11:50
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120223-008
Laboratory
Radiation Safety Engineering
0.8 pci/l , sample collected Feb 22, 2012 11:50, sampling point TF101 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.36 pci/l Minimum Reporting Level , sample collected Feb 22, 2012 11:50, sampling point TF101 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.278 pci/l Minimum Reporting Level , sample collected Feb 22, 2012 11:50, sampling point TF101 Radium-226 4020 EPA method 903.1 Jan 1, 2012 – Mar 31, 2012
Not detected below 0.36 pci/l Minimum Reporting Level , sample collected Feb 22, 2012 11:50, sampling point TF101 Radium-228 4030 EPA method 904.0 Jan 1, 2012 – Mar 31, 2012
Collected
Feb 22, 2012 11:50
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120223-008RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 22, 2012 11:50, sampling point TF101 Combined Uranium 4006 EPA method 200.8 Jan 1, 2012 – Mar 31, 2012
Collected
Jan 18, 2012 11:20
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120119-022NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 18, 2012 11:20, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 18, 2012 11:20, 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 Jan 18, 2012 11:20, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2012 – Dec 31, 2012
Collected
Dec 8, 2011 11:10
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
111209-014
Laboratory
Radiation Safety Engineering
0.8 pci/l , sample collected Dec 8, 2011 11:10, sampling point TF101 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.36 pci/l Minimum Reporting Level , sample collected Dec 8, 2011 11:10, sampling point TF101 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.278 pci/l Minimum Reporting Level , sample collected Dec 8, 2011 11:10, sampling point TF101 Radium-226 4020 EPA method 903.1 Oct 1, 2011 – Dec 31, 2011
Not detected below 0.36 pci/l Minimum Reporting Level , sample collected Dec 8, 2011 11:10, sampling point TF101 Radium-228 4030 EPA method 904.0 Oct 1, 2011 – Dec 31, 2011
Collected
Sep 21, 2011 12:50
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
110922-001VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 21, 2011 12:50, 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 Sep 21, 2011 12:50, sampling point TF101 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 21, 2011 12:50, 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 Sep 21, 2011 12:50, 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 Sep 21, 2011 12:50, 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 Sep 21, 2011 12:50, 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 Sep 21, 2011 12:50, 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 Sep 21, 2011 12:50, 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 Sep 21, 2011 12:50, 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 Sep 21, 2011 12:50, 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 Sep 21, 2011 12:50, 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 Sep 21, 2011 12:50, 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 Sep 21, 2011 12:50, 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 Sep 21, 2011 12:50, 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 Sep 21, 2011 12:50, 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 Sep 21, 2011 12:50, 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 Sep 21, 2011 12:50, 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 Sep 21, 2011 12:50, 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 Sep 21, 2011 12:50, sampling point TF101 Toluene 2991 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 21, 2011 12:50, 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 Sep 21, 2011 12:50, sampling point TF101 Styrene 2996 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Collected
Jul 6, 2011 11:15
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
110707-015HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Jul 6, 2011 11:15, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 6, 2011 11:15, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 6, 2011 11:15, 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 6, 2011 11:15, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 6, 2011 11:15, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 0.006 mg/l Minimum Reporting Level , sample collected Jul 6, 2011 11:15, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2011 – Dec 31, 2013

Routine (10).