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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

MS0450003 , Big Black Water Association

25 of the 62 analytes this system has been tested for have been detected at least once, across 470 samples on record.

The other 37 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 470 samples on record, detections range from October 6, 2003 to June 30, 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 Big Black Water Association, 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
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 141 of 141 results Sep 13, 2004 Jun 30, 2026
TTHM 2950 Organic Chemical 140 of 140 results Sep 13, 2004 Jun 30, 2026
Bromodichloromethane 2943 Organic Chemical 102 of 102 results May 25, 2006 Jun 30, 2026
Chloroform 2941 Organic Chemical 101 of 101 results May 25, 2006 Jun 30, 2026
Dichloroacetic Acid 2451 Organic Chemical 96 of 96 results Oct 11, 2007 Jun 30, 2026
Trichloroacetic Acid 2452 Organic Chemical 94 of 96 results Oct 11, 2007 Jun 30, 2026
Copper, Free 1022 Inorganic Chemical 65 of 65 results Aug 6, 2008 Sep 15, 2023
Lead 1030 Inorganic Chemical 51 of 65 results Aug 6, 2008 Sep 15, 2023
Fluoride 1025 Inorganic Chemical 22 of 22 results Oct 6, 2003 Mar 10, 2025
Barium 1010 Inorganic Chemical 20 of 20 results Oct 6, 2003 Mar 10, 2025
Monochloroacetic Acid 2450 Organic Chemical 20 of 96 results Oct 28, 2008 Dec 8, 2020
Chromium 1020 Inorganic Chemical 15 of 20 results Oct 6, 2003 Apr 8, 2019
Gross Alpha, Incl. Radon & U 4002 Radionuclide 10 of 10 results Dec 6, 2011 Jul 11, 2012
Sodium 1052 Inorganic Chemical 8 of 8 results Sep 18, 2019 Feb 25, 2025
Monobromoacetic Acid 2453 Organic Chemical 3 of 96 results Apr 18, 2012 Sep 1, 2020
Dibromochloromethane 2944 Organic Chemical 3 of 102 results Apr 29, 2008 Mar 15, 2010
Calcium 1016 Inorganic Chemical 2 of 2 results Apr 14, 2021 Apr 14, 2021
Chloride 1017 Inorganic Chemical 2 of 2 results Apr 14, 2021 Apr 14, 2021
Conductivity @ 25 C Umhos/CM 1064 Water Quality 2 of 2 results Apr 14, 2021 Apr 14, 2021
Color 1905 Water Quality 2 of 2 results Apr 14, 2021 Apr 14, 2021
Alkalinity, Total 1927 Water Quality 2 of 2 results Apr 14, 2021 Apr 14, 2021
Cadmium 1015 Inorganic Chemical 2 of 20 results Mar 28, 2005 Mar 28, 2005
Nickel 1036 Inorganic Chemical 2 of 20 results Mar 28, 2005 Mar 28, 2005
Bromoform 2942 Organic Chemical 1 of 102 results Apr 29, 2008 Apr 29, 2008
Dichloromethane 2964 Organic Chemical 1 of 16 results Aug 10, 2004 Aug 10, 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 431–440 of 470 samples, newest first — collected August 15, 2005 to March 20, 2006. The summary above covers all 470.

36 results from the 10 samples listed here: 10 detected, 26 not detected. Across the whole record it is 907 of 2,082. 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 Big Black Water Association, every result from 431 to 440 of 470 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 20, 2006
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
060321-006CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Mar 20, 2006, sampling point TF102 Cyanide 1024 EPA method QC10204001X Jan 1, 2005 – Dec 31, 2007
Collected
Mar 20, 2006
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
060321-007CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Mar 20, 2006, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2005 – Dec 31, 2007
Collected
Mar 20, 2006
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
060321-004IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 20, 2006, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.003947 mg/l , sample collected Mar 20, 2006, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Mar 20, 2006, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.002708 mg/l , sample collected Mar 20, 2006, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.363993 mg/l , sample collected Mar 20, 2006, sampling point TF101 Fluoride 1025 EPA method 380-75WE Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected Mar 20, 2006, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 20, 2006, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 20, 2006, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 20, 2006, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Mar 20, 2006, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 20, 2006, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 20, 2006, sampling point TF101 Uranium-238 4009 Not recorded
Collected
Mar 20, 2006
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
060321-003IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 20, 2006, sampling point TF102 Arsenic 1005 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.007656 mg/l , sample collected Mar 20, 2006, sampling point TF102 Barium 1010 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Mar 20, 2006, sampling point TF102 Cadmium 1015 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.007009 mg/l , sample collected Mar 20, 2006, sampling point TF102 Chromium 1020 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.39357 mg/l , sample collected Mar 20, 2006, sampling point TF102 Fluoride 1025 EPA method 380-75WE Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected Mar 20, 2006, sampling point TF102 Mercury 1035 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 20, 2006, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 20, 2006, sampling point TF102 Selenium 1045 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 20, 2006, sampling point TF102 Antimony, Total 1074 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Mar 20, 2006, sampling point TF102 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 20, 2006, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 20, 2006, sampling point TF102 Uranium-238 4009 Not recorded
Collected
Oct 12, 2005
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
051013-023HA
Laboratory
MSDH Lab
0.027 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Oct 12, 2005, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Oct 1, 2005 – Dec 31, 2005
Collected
Oct 12, 2005
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
051013-023TH
Laboratory
MSDH Lab
42.5 ug/l , sample collected Oct 12, 2005, sampling point MRT000 TTHM 2950 EPA method 524.2 Oct 1, 2005 – Dec 31, 2005
Collected
Sep 21, 2005
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
050922-004HA
Laboratory
MSDH Lab
0.027 mg/l , sample collected Sep 21, 2005, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jul 1, 2005 – Sep 30, 2005
Collected
Sep 21, 2005
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
050922-004TH
Laboratory
MSDH Lab
42.2 ug/l , sample collected Sep 21, 2005, sampling point MRT000 TTHM 2950 EPA method 524.2 Jul 1, 2005 – Sep 30, 2005
Collected
Aug 15, 2005
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
050816-134NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Aug 15, 2005, sampling point TF102 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Aug 15, 2005, sampling point TF102 Nitrate 1040 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Aug 15, 2005, sampling point TF102 Nitrite 1041 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Collected
Aug 15, 2005
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
050816-135NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Aug 15, 2005, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Aug 15, 2005, sampling point TF101 Nitrate 1040 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Aug 15, 2005, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005

Routine (10).