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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

MS0110004 , Pattison W/A-West

32 of the 64 analytes this system has been tested for have been detected at least once, across 277 samples on record.

The other 32 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 277 samples on record, detections range from November 23, 1993 to March 12, 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 Pattison W/A-West, 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 155 of 173 results Nov 23, 1993 Jul 12, 2023
Lead 1030 Inorganic Chemical 106 of 173 results Nov 23, 1993 Jul 12, 2023
Barium 1010 Inorganic Chemical 16 of 16 results Mar 26, 2002 Jan 29, 2025
Fluoride 1025 Inorganic Chemical 13 of 19 results Mar 26, 2002 Oct 11, 2021
Nickel 1036 Inorganic Chemical 12 of 16 results Mar 26, 2002 Jan 29, 2025
Chromium 1020 Inorganic Chemical 9 of 16 results Jan 28, 2004 Jan 29, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 8 of 9 results Jul 11, 2007 Mar 12, 2025
Sulfate 1055 Inorganic Chemical 7 of 7 results Mar 26, 2002 Oct 11, 2021
Gross Alpha, Incl. Radon & U 4002 Radionuclide 7 of 7 results Dec 5, 2011 Jul 12, 2012
Combined Radium (-226 & -228) 4010 Radionuclide 7 of 9 results Dec 5, 2011 Jul 12, 2012
Radium-228 4030 Radionuclide 7 of 9 results Dec 5, 2011 Jul 12, 2012
Sodium 1052 Inorganic Chemical 6 of 6 results Sep 18, 2019 Oct 28, 2024
TTHM 2950 Organic Chemical 6 of 9 results May 10, 2004 Jul 18, 2018
Chloroform 2941 Organic Chemical 5 of 5 results Jul 11, 2007 Jul 18, 2018
Bromodichloromethane 2943 Organic Chemical 5 of 5 results Jul 11, 2007 Jul 18, 2018
Dibromochloromethane 2944 Organic Chemical 5 of 5 results Jul 11, 2007 Jul 18, 2018
Selenium 1045 Inorganic Chemical 5 of 16 results Feb 14, 2005 May 7, 2008
Dichloroacetic Acid 2451 Organic Chemical 4 of 4 results Aug 13, 2008 Jul 18, 2018
Cadmium 1015 Inorganic Chemical 4 of 16 results Feb 14, 2005 Jan 23, 2006
Calcium 1016 Inorganic Chemical 3 of 3 results Oct 11, 2021 Oct 11, 2021
Chloride 1017 Inorganic Chemical 3 of 3 results Oct 11, 2021 Oct 11, 2021
Conductivity @ 25 C Umhos/CM 1064 Water Quality 3 of 3 results Oct 11, 2021 Oct 11, 2021
Alkalinity, Total 1927 Water Quality 3 of 3 results Oct 11, 2021 Oct 11, 2021
Color 1905 Water Quality 2 of 3 results Oct 11, 2021 Oct 11, 2021
Dibromoacetic Acid 2454 Organic Chemical 2 of 4 results Jul 11, 2012 Jul 18, 2018
Bromoform 2942 Organic Chemical 2 of 5 results Jul 11, 2007 Jul 18, 2018
Arsenic 1005 Inorganic Chemical 1 of 16 results Jan 29, 2025 Jan 29, 2025
Nitrate-Nitrite 1038 Inorganic Chemical 1 of 27 results Jan 22, 2018 Jan 22, 2018
Nitrate 1040 Inorganic Chemical 1 of 27 results Jan 22, 2018 Jan 22, 2018
Trichloroacetic Acid 2452 Organic Chemical 1 of 4 results Aug 18, 2014 Aug 18, 2014
Monochloroacetic Acid 2450 Organic Chemical 1 of 4 results Aug 13, 2008 Aug 13, 2008
Beryllium, Total 1075 Inorganic Chemical 1 of 16 results Feb 3, 2004 Feb 3, 2004

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 41–50 of 277 samples, newest first — collected January 22, 2018 to April 14, 2020. The summary above covers all 277.

45 results from the 10 samples listed here: 17 detected, 28 not detected. Across the whole record it is 411 of 982. 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 Pattison W/A-West, every result from 41 to 50 of 277 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
Apr 14, 2020 15:25
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
200416-001IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 14, 2020 15:25, sampling point TF080 Arsenic 1005 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.1602 mg/l , sample collected Apr 14, 2020 15:25, sampling point TF080 Barium 1010 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 14, 2020 15:25, sampling point TF080 Cadmium 1015 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 14, 2020 15:25, sampling point TF080 Chromium 1020 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.127 mg/l , sample collected Apr 14, 2020 15:25, sampling point TF080 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 14, 2020 15:25, sampling point TF080 Mercury 1035 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.0008 mg/l , sample collected Apr 14, 2020 15:25, sampling point TF080 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 14, 2020 15:25, sampling point TF080 Selenium 1045 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 14, 2020 15:25, sampling point TF080 Antimony, Total 1074 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 14, 2020 15:25, sampling point TF080 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 14, 2020 15:25, sampling point TF080 Thallium, Total 1085 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Collected
Jan 22, 2020 14:05
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
200123-057NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 22, 2020 14:05, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 22, 2020 14:05, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 22, 2020 14:05, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Collected
Sep 18, 2019 08:25
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
680-174320-67
Laboratory
Test America-Savannah
12000 ug/l , sample collected Sep 18, 2019 08:25, sampling point TF080 Sodium 1052 EPA method 200.7 Not recorded
Collected
Jan 28, 2019 15:05
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
190129-037NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 28, 2019 15:05, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2019 – Dec 31, 2019
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 28, 2019 15:05, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2019 – Dec 31, 2019
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 28, 2019 15:05, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2019 – Dec 31, 2019
Collected
Sep 24, 2018 01:44
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
180925-018IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 24, 2018 01:44, sampling point TF080 Arsenic 1005 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
0.1541 mg/l , sample collected Sep 24, 2018 01:44, sampling point TF080 Barium 1010 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 24, 2018 01:44, sampling point TF080 Cadmium 1015 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 24, 2018 01:44, sampling point TF080 Chromium 1020 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
0.1 mg/l , sample collected Sep 24, 2018 01:44, sampling point TF080 Fluoride 1025 EPA method 300.0 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 24, 2018 01:44, sampling point TF080 Mercury 1035 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
0.0008 mg/l , sample collected Sep 24, 2018 01:44, sampling point TF080 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 24, 2018 01:44, sampling point TF080 Selenium 1045 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 24, 2018 01:44, sampling point TF080 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 Sep 24, 2018 01:44, sampling point TF080 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 Sep 24, 2018 01:44, sampling point TF080 Thallium, Total 1085 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Collected
Jul 18, 2018 03:05
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
180719-003TH
Laboratory
MSDH Lab
6.55 ug/l , sample collected Jul 18, 2018 03:05, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
1.12 ug/l , sample collected Jul 18, 2018 03:05, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
7.23 ug/l , sample collected Jul 18, 2018 03:05, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
5.26 ug/l , sample collected Jul 18, 2018 03:05, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
20.16 ug/l , sample collected Jul 18, 2018 03:05, sampling point MRT000 TTHM 2950 Jan 1, 2017 – Dec 31, 2019
Collected
Jul 18, 2018 03:00
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
180719-003HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Jul 18, 2018 03:00, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.002 mg/l , sample collected Jul 18, 2018 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 18, 2018 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 18, 2018 03:00, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
0.001 mg/l , sample collected Jul 18, 2018 03:00, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.003 mg/l , sample collected Jul 18, 2018 03:00, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2017 – Dec 31, 2019
Collected
Jul 16, 2018 15:30
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
180717-005RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 16, 2018 15:30, sampling point TF080 Combined Uranium 4006 EPA method 200.8 Jan 1, 2013 – Dec 31, 2021
Collected
May 2, 2018 02:30
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
180503-019CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected May 2, 2018 02:30, sampling point TF080 Cyanide 1024 EPA method QC10204001X Jan 1, 2017 – Dec 31, 2019
Collected
Jan 22, 2018 15:00
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
180123-015NI
Laboratory
MSDH Lab
0.23 mg/l , sample collected Jan 22, 2018 15:00, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2018 – Dec 31, 2018
0.22 mg/l , sample collected Jan 22, 2018 15:00, 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 22, 2018 15:00, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2018 – Dec 31, 2018

Routine (10).