Skip to main content
Alpha

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

MS0300044 , Gulf Park

44 of the 74 analytes this system has been tested for have been detected at least once, across 791 samples on record.

The other 30 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 791 samples on record, detections range from August 12, 2002 to June 17, 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 Gulf Park, 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 142 of 142 results Aug 30, 2007 Oct 15, 2024
TTHM 2950 Organic Chemical 115 of 115 results Sep 8, 2004 Feb 24, 2026
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 110 of 111 results Oct 27, 2005 Jun 17, 2026
Chloroform 2941 Organic Chemical 80 of 80 results Sep 20, 2006 Feb 24, 2026
Dichloroacetic Acid 2451 Organic Chemical 76 of 76 results Jan 31, 2008 Jun 17, 2026
Trichloroacetic Acid 2452 Organic Chemical 73 of 76 results Jan 31, 2008 Jun 17, 2026
Fluoride 1025 Inorganic Chemical 73 of 73 results Sep 15, 2003 Apr 14, 2025
Lead 1030 Inorganic Chemical 73 of 142 results Aug 30, 2007 Oct 15, 2024
Bromodichloromethane 2943 Organic Chemical 71 of 80 results Sep 20, 2006 Feb 24, 2026
Barium 1010 Inorganic Chemical 68 of 68 results Sep 15, 2003 Apr 14, 2025
Chromium 1020 Inorganic Chemical 38 of 68 results Sep 15, 2003 Apr 14, 2025
Dibromochloromethane 2944 Organic Chemical 25 of 80 results Sep 20, 2006 Feb 24, 2026
Gross Alpha, Incl. Radon & U 4002 Radionuclide 17 of 17 results Dec 15, 2011 Mar 30, 2015
Sulfate 1055 Inorganic Chemical 17 of 19 results Sep 15, 2003 Dec 2, 2008
Dibromoacetic Acid 2454 Organic Chemical 14 of 76 results Jun 8, 2015 Jun 6, 2019
Sodium 1052 Inorganic Chemical 13 of 13 results Dec 2, 2008 Feb 20, 2024
Bromoform 2942 Organic Chemical 13 of 80 results Sep 20, 2006 Nov 29, 2016
Selenium 1045 Inorganic Chemical 13 of 68 results Feb 23, 2004 Feb 15, 2006
Monochloroacetic Acid 2450 Organic Chemical 10 of 76 results Jan 31, 2008 Dec 12, 2019
Arsenic 1005 Inorganic Chemical 5 of 68 results Mar 16, 2005 Feb 21, 2023
Calcium 1016 Inorganic Chemical 5 of 5 results Dec 2, 2008 Dec 2, 2008
Chloride 1017 Inorganic Chemical 5 of 5 results Dec 2, 2008 Dec 2, 2008
Manganese 1032 Inorganic Chemical 5 of 5 results Dec 2, 2008 Dec 2, 2008
Potassium 1042 Inorganic Chemical 5 of 5 results Dec 2, 2008 Dec 2, 2008
Residue, Total, Filterable 1057 Water Quality 5 of 5 results Dec 2, 2008 Dec 2, 2008
Alkalinity, Caco3 Stability 1067 Water Quality 5 of 5 results Dec 2, 2008 Dec 2, 2008
Carbon Dioxide 1901 Water Quality 5 of 5 results Dec 2, 2008 Dec 2, 2008
Color 1905 Water Quality 5 of 5 results Dec 2, 2008 Dec 2, 2008
Hardness, Total (As Caco3) 1915 Water Quality 5 of 5 results Dec 2, 2008 Dec 2, 2008
PH 1925 Water Quality 5 of 5 results Dec 2, 2008 Dec 2, 2008
Alkalinity, Total 1927 Water Quality 5 of 5 results Dec 2, 2008 Dec 2, 2008
Calculated Sodium NACA Water Quality 5 of 5 results Dec 2, 2008 Dec 2, 2008
PH, Field Result PHFD Water Quality 5 of 5 results Dec 2, 2008 Dec 2, 2008
Cadmium 1015 Inorganic Chemical 5 of 68 results Mar 16, 2005 Mar 16, 2005
Nickel 1036 Inorganic Chemical 4 of 68 results Jan 14, 2009 Apr 14, 2025
Temperature, Field Result TEMP Water Quality 4 of 4 results Dec 2, 2008 Dec 2, 2008
Cyanide 1024 Inorganic Chemical 3 of 71 results Sep 16, 2009 Aug 19, 2025
Xylenes, Total 2955 Organic Chemical 3 of 79 results Aug 12, 2002 Aug 18, 2003
Nitrate 1040 Inorganic Chemical 2 of 142 results May 17, 2004 Aug 10, 2005
Magnesium 1031 Inorganic Chemical 1 of 5 results Dec 2, 2008 Dec 2, 2008
Thallium, Total 1085 Inorganic Chemical 1 of 68 results Mar 16, 2005 Mar 16, 2005
Nitrate-Nitrite 1038 Inorganic Chemical 1 of 142 results May 17, 2004 May 17, 2004
Mercury 1035 Inorganic Chemical 1 of 68 results Feb 23, 2004 Feb 23, 2004
Ethylbenzene 2992 Organic Chemical 1 of 79 results Aug 12, 2002 Aug 12, 2002

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 51–60 of 791 samples, newest first — collected April 24, 2024 to July 23, 2024. The summary above covers all 791.

19 results from the 10 samples listed here: 11 detected, 8 not detected. Across the whole record it is 1,137 of 4,341. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.

We withheld the location of 9 sampling points below. The location on record identifies a private home, and we do not publish those. That is our decision, not the agency’s. The sampling point, its type and every result taken there are published unchanged.

Chemical and radiological sample results for Gulf Park, every result from 51 to 60 of 791 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 23, 2024 09:00
Sampling point
LC0004 Location withheld
Sample type
Routine
Lab sample
PB-240724-140
Laboratory
MSDH Lab
0.0513 mg/l , sample collected Jul 23, 2024 09:00, sampling point LC0004 Copper, Free 1022 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 23, 2024 09:00, sampling point LC0004 Lead 1030 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Collected
Jul 23, 2024 05:30
Sampling point
LC0025 Location withheld
Sample type
Routine
Lab sample
PB-240724-142
Laboratory
MSDH Lab
0.0102 mg/l , sample collected Jul 23, 2024 05:30, sampling point LC0025 Copper, Free 1022 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 23, 2024 05:30, sampling point LC0025 Lead 1030 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Collected
Jul 23, 2024 07:15
Sampling point
LC0022 Location withheld
Sample type
Routine
Lab sample
PB-240724-141
Laboratory
MSDH Lab
0.0119 mg/l , sample collected Jul 23, 2024 07:15, sampling point LC0022 Copper, Free 1022 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 23, 2024 07:15, sampling point LC0022 Lead 1030 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Collected
Jul 23, 2024 09:00
Sampling point
LC0009 Location withheld
Sample type
Routine
Lab sample
PB-240724-145
Laboratory
MSDH Lab
0.12 mg/l , sample collected Jul 23, 2024 09:00, sampling point LC0009 Copper, Free 1022 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 23, 2024 09:00, sampling point LC0009 Lead 1030 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Collected
Jul 23, 2024 09:30
Sampling point
LC0011 Location withheld
Sample type
Routine
Lab sample
PB-240724-146
Laboratory
MSDH Lab
0.0169 mg/l , sample collected Jul 23, 2024 09:30, sampling point LC0011 Copper, Free 1022 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 23, 2024 09:30, sampling point LC0011 Lead 1030 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Collected
Jul 23, 2024 05:00
Sampling point
LC0010 Location withheld
Sample type
Routine
Lab sample
PB-240724-143
Laboratory
MSDH Lab
0.0895 mg/l , sample collected Jul 23, 2024 05:00, sampling point LC0010 Copper, Free 1022 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 23, 2024 05:00, sampling point LC0010 Lead 1030 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Collected
Jul 23, 2024 04:00
Sampling point
LC0013 Location withheld
Sample type
Routine
Lab sample
PB-240725-060
Laboratory
MSDH Lab
0.0256 mg/l , sample collected Jul 23, 2024 04:00, sampling point LC0013 Copper, Free 1022 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 23, 2024 04:00, sampling point LC0013 Lead 1030 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Collected
Jul 23, 2024 11:00
Sampling point
LC0036 Location withheld
Sample type
Routine
Lab sample
PB-240725-052
Laboratory
MSDH Lab
0.0556 mg/l , sample collected Jul 23, 2024 11:00, sampling point LC0036 Copper, Free 1022 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
0.5 ug/l , sample collected Jul 23, 2024 11:00, sampling point LC0036 Lead 1030 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Collected
Jul 23, 2024 14:52
Sampling point
LC0034 Location withheld
Sample type
Routine
Lab sample
PB-240725-051
Laboratory
MSDH Lab
0.0695 mg/l , sample collected Jul 23, 2024 14:52, sampling point LC0034 Copper, Free 1022 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
1.3 ug/l , sample collected Jul 23, 2024 14:52, sampling point LC0034 Lead 1030 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Collected
Apr 24, 2024 12:48
Sampling point
TF110 Treatment Plant TF110
Sample type
Routine
Lab sample
CN-240425-003
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Apr 24, 2024 12:48, sampling point TF110 Cyanide 1024 EPA method QC10204001X Jan 1, 2024 – Dec 31, 2024

Routine (10).