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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

MS0480013 , Wren W/A

22 of the 56 analytes this system has been tested for have been detected at least once, across 459 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 459 samples on record, detections range from October 8, 2003 to March 10, 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 Wren W/A, 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 100 of 100 results Jul 31, 2007 Sep 19, 2023
Lead 1030 Inorganic Chemical 49 of 100 results Jul 31, 2007 Sep 19, 2023
Barium 1010 Inorganic Chemical 44 of 44 results Oct 8, 2003 Mar 10, 2025
Fluoride 1025 Inorganic Chemical 38 of 44 results Oct 8, 2003 Mar 10, 2025
Nickel 1036 Inorganic Chemical 26 of 44 results Mar 8, 2004 Mar 10, 2025
Chromium 1020 Inorganic Chemical 26 of 44 results Oct 8, 2003 Mar 8, 2016
Arsenic 1005 Inorganic Chemical 14 of 44 results Mar 8, 2004 Mar 10, 2025
Sodium 1052 Inorganic Chemical 14 of 14 results Sep 17, 2019 Feb 25, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 12 of 27 results Mar 14, 2012 Sep 17, 2019
Selenium 1045 Inorganic Chemical 9 of 44 results Oct 8, 2003 Jan 13, 2010
Sulfate 1055 Inorganic Chemical 8 of 8 results Oct 8, 2003 Mar 8, 2004
Nitrate 1040 Inorganic Chemical 7 of 112 results Jul 17, 2006 Nov 19, 2014
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 6 of 22 results Jun 15, 2010 Feb 26, 2025
Nitrate-Nitrite 1038 Inorganic Chemical 6 of 112 results Jul 17, 2006 Nov 19, 2014
Nitrite 1041 Inorganic Chemical 5 of 112 results Jul 17, 2006 Nov 19, 2014
Monochloroacetic Acid 2450 Organic Chemical 4 of 17 results Jul 7, 2016 Feb 26, 2025
TTHM 2950 Organic Chemical 4 of 23 results Sep 24, 2007 Dec 4, 2024
Bromoform 2942 Organic Chemical 2 of 18 results Sep 30, 2024 Dec 4, 2024
Cadmium 1015 Inorganic Chemical 2 of 44 results Apr 4, 2005 Apr 4, 2005
Monobromoacetic Acid 2453 Organic Chemical 1 of 17 results Sep 30, 2020 Sep 30, 2020
Dichloroacetic Acid 2451 Organic Chemical 1 of 17 results Aug 22, 2019 Aug 22, 2019
Xylenes, Total 2955 Organic Chemical 1 of 57 results Sep 14, 2011 Sep 14, 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 191–200 of 459 samples, newest first — collected April 27, 2016 to March 6, 2017. The summary above covers all 459.

51 results from the 10 samples listed here: 2 detected, 49 not detected. Across the whole record it is 379 of 2,618. 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 Wren W/A, every result from 191 to 200 of 459 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
Mar 6, 2017 14:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
170307-004NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 6, 2017 14:30, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 6, 2017 14:30, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 6, 2017 14:30, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Collected
Mar 6, 2017 15:45
Sampling point
TF106
Sample type
Routine
Lab sample
170307-003NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 6, 2017 15:45, sampling point TF106 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 6, 2017 15:45, sampling point TF106 Nitrate 1040 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 6, 2017 15:45, sampling point TF106 Nitrite 1041 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Collected
Mar 6, 2017 15:25
Sampling point
TF105 Treatment Plant T105
Sample type
Routine
Lab sample
170307-002NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 6, 2017 15:25, sampling point TF105 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 6, 2017 15:25, sampling point TF105 Nitrate 1040 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 6, 2017 15:25, sampling point TF105 Nitrite 1041 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Collected
Mar 6, 2017 15:05
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
170307-001NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 6, 2017 15:05, sampling point TF104 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 6, 2017 15:05, sampling point TF104 Nitrate 1040 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 6, 2017 15:05, sampling point TF104 Nitrite 1041 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Collected
Sep 28, 2016 03:00
Sampling point
TF106
Sample type
Routine
Lab sample
160929-005VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 28, 2016 03:00, sampling point TF106 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2016 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 28, 2016 03:00, sampling point TF106 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2016 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 28, 2016 03:00, sampling point TF106 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2016 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 28, 2016 03:00, sampling point TF106 Dichloromethane 2964 EPA method 524.2 Jan 1, 2016 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 28, 2016 03:00, sampling point TF106 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2016 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 28, 2016 03:00, sampling point TF106 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2016 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 28, 2016 03:00, sampling point TF106 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2016 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 28, 2016 03:00, sampling point TF106 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2016 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 28, 2016 03:00, sampling point TF106 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2016 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 28, 2016 03:00, sampling point TF106 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2016 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 28, 2016 03:00, sampling point TF106 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2016 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 28, 2016 03:00, sampling point TF106 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2016 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 28, 2016 03:00, sampling point TF106 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2016 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 28, 2016 03:00, sampling point TF106 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2016 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 28, 2016 03:00, sampling point TF106 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2016 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 28, 2016 03:00, sampling point TF106 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2016 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 28, 2016 03:00, sampling point TF106 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2016 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 28, 2016 03:00, sampling point TF106 Benzene 2990 EPA method 524.2 Jan 1, 2016 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 28, 2016 03:00, sampling point TF106 Toluene 2991 EPA method 524.2 Jan 1, 2016 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 28, 2016 03:00, sampling point TF106 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2016 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 28, 2016 03:00, sampling point TF106 Styrene 2996 EPA method 524.2 Jan 1, 2016 – Dec 31, 2016
Collected
Jul 7, 2016 03:30
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
160708-008TH
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 7, 2016 03:30, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 7, 2016 03:30, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 7, 2016 03:30, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 7, 2016 03:30, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
Not detected below 4 ug/l Minimum Reporting Level , sample collected Jul 7, 2016 03:30, sampling point MRT000 TTHM 2950 Jan 1, 2014 – Dec 31, 2016
Collected
Jul 7, 2016 03:00
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
160708-008HA
Laboratory
MSDH Lab
0.012 mg/l , sample collected Jul 7, 2016 03:00, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 7, 2016 03:00, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 7, 2016 03:00, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 7, 2016 03:00, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 7, 2016 03:00, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.012 mg/l , sample collected Jul 7, 2016 03:00, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2014 – Dec 31, 2016
Collected
Jun 15, 2016 02:30
Sampling point
TF105 Treatment Plant T105
Sample type
Routine
Lab sample
160616-009CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Jun 15, 2016 02:30, sampling point TF105 Cyanide 1024 EPA method QC10204001X Jan 1, 2014 – Dec 31, 2016
Collected
Apr 27, 2016 14:55
Sampling point
TF106
Sample type
Routine
Lab sample
160428-040NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 27, 2016 14:55, sampling point TF106 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2016 – Dec 31, 2016
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Apr 27, 2016 14:55, sampling point TF106 Nitrate 1040 EPA method QC10107041C Jan 1, 2016 – Dec 31, 2016
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 27, 2016 14:55, sampling point TF106 Nitrite 1041 EPA method QC10107041C Jan 1, 2016 – Dec 31, 2016
Collected
Apr 27, 2016 13:00
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
160428-030NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 27, 2016 13:00, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2016 – Dec 31, 2016
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Apr 27, 2016 13:00, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2016 – Dec 31, 2016
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 27, 2016 13:00, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2016 – Dec 31, 2016

Routine (10).