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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

MS0050016 , Blackjack Development Assn

22 of the 57 analytes this system has been tested for have been detected at least once, across 252 samples on record.

The other 35 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 252 samples on record, detections range from May 26, 1994 to October 8, 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 Blackjack Development Assn, 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 78 of 107 results May 26, 1994 Jun 10, 2025
Lead 1030 Inorganic Chemical 33 of 107 results May 26, 1994 Jun 19, 2019
Barium 1010 Inorganic Chemical 19 of 19 results Jan 29, 2002 Jan 21, 2025
Fluoride 1025 Inorganic Chemical 18 of 19 results Jan 12, 2004 Jan 21, 2025
Nickel 1036 Inorganic Chemical 17 of 19 results Jan 29, 2002 Jan 21, 2025
Chromium 1020 Inorganic Chemical 11 of 19 results Jan 29, 2002 Mar 30, 2020
Gross Alpha, Incl. Radon & U 4002 Radionuclide 10 of 10 results Dec 5, 2011 Jul 10, 2012
TTHM 2950 Organic Chemical 9 of 20 results Jun 25, 2007 Oct 8, 2025
Arsenic 1005 Inorganic Chemical 9 of 19 results Mar 4, 2015 Jan 21, 2025
Chloroform 2941 Organic Chemical 7 of 16 results Aug 4, 2014 Oct 8, 2025
Sodium 1052 Inorganic Chemical 6 of 6 results Sep 17, 2019 Oct 14, 2024
Combined Radium (-226 & -228) 4010 Radionuclide 5 of 10 results Dec 5, 2011 Jul 10, 2012
Radium-226 4020 Radionuclide 5 of 10 results Dec 5, 2011 Jul 10, 2012
Bromodichloromethane 2943 Organic Chemical 3 of 16 results May 20, 2024 Aug 5, 2024
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 3 of 22 results Jun 25, 2007 Jan 31, 2022
Sulfate 1055 Inorganic Chemical 2 of 2 results Jan 29, 2002 Jan 12, 2004
Cyanide 1024 Inorganic Chemical 1 of 17 results Apr 13, 2021 Apr 13, 2021
Monochloroacetic Acid 2450 Organic Chemical 1 of 17 results Aug 29, 2017 Aug 29, 2017
Dichloroacetic Acid 2451 Organic Chemical 1 of 17 results Aug 29, 2017 Aug 29, 2017
Monobromoacetic Acid 2453 Organic Chemical 1 of 17 results Aug 29, 2017 Aug 29, 2017
Cadmium 1015 Inorganic Chemical 1 of 19 results Feb 14, 2005 Feb 14, 2005
Selenium 1045 Inorganic Chemical 1 of 19 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 111–120 of 252 samples, newest first — collected June 9, 2014 to January 20, 2015. The summary above covers all 252.

26 results from the 10 samples listed here: 12 detected, 14 not detected. Across the whole record it is 241 of 1,024. 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 Blackjack Development Assn, every result from 111 to 120 of 252 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
Jan 20, 2015 15:00
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
150121-094NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 20, 2015 15:00, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2015 – Dec 31, 2015
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 20, 2015 15:00, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2015 – Dec 31, 2015
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 20, 2015 15:00, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2015 – Dec 31, 2015
Collected
Aug 4, 2014 04:05
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
140805-025HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Aug 4, 2014 04:05, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 4, 2014 04:05, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 4, 2014 04:05, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 4, 2014 04:05, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 4, 2014 04:05, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 0.006 mg/l Minimum Reporting Level , sample collected Aug 4, 2014 04:05, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2014 – Dec 31, 2016
Collected
Aug 4, 2014 04:05
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
140805-024TH
Laboratory
MSDH Lab
1.28 ug/l , sample collected Aug 4, 2014 04:05, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 4, 2014 04:05, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 4, 2014 04:05, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 4, 2014 04:05, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
1.28 ug/l , sample collected Aug 4, 2014 04:05, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2014 – Dec 31, 2016
Collected
Jun 23, 2014 03:45
Sampling point
TF102
Sample type
Routine
Lab sample
140624-002CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Jun 23, 2014 03:45, sampling point TF102 Cyanide 1024 EPA method QC10204001X Jan 1, 2014 – Dec 31, 2016
Collected
Jun 23, 2014 03:20
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
140624-001CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Jun 23, 2014 03:20, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2014 – Dec 31, 2016
Collected
Jun 9, 2014 07:45
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
140611-015PB
Laboratory
MSDH Lab
0.0331 mg/l , sample collected Jun 9, 2014 07:45, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
0.0009 mg/l , sample collected Jun 9, 2014 07:45, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
Jun 9, 2014 07:50
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
140611-014PB
Laboratory
MSDH Lab
0.2303 mg/l , sample collected Jun 9, 2014 07:50, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
0.0028 mg/l , sample collected Jun 9, 2014 07:50, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
Jun 9, 2014 06:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
140611-013PB
Laboratory
MSDH Lab
0.1182 mg/l , sample collected Jun 9, 2014 06:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
0.0015 mg/l , sample collected Jun 9, 2014 06:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Collected
Jun 9, 2014 10:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
140611-011PB
Laboratory
MSDH Lab
0.043 mg/l , sample collected Jun 9, 2014 10:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
0.0012 mg/l , sample collected Jun 9, 2014 10:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
Jun 9, 2014 09:20
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
140611-010PB
Laboratory
MSDH Lab
0.0117 mg/l , sample collected Jun 9, 2014 09:20, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
0.0007 mg/l , sample collected Jun 9, 2014 09:20, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014

Routine (10).