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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

MS0300044 , Gulf Park

46 of the 74 analytes this system has been tested for have been detected at least once, across 794 samples on record.

The other 28 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 794 samples on record, detections range from August 12, 2002 to August 12, 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 19 of 20 results Dec 15, 2011 Aug 12, 2026
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
Combined Radium (-226 & -228) 4010 Radionuclide 2 of 20 results Aug 12, 2026 Aug 12, 2026
Radium-226 4020 Radionuclide 2 of 20 results Aug 12, 2026 Aug 12, 2026
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 701–710 of 794 samples, newest first — collected March 16, 2005 to October 27, 2005. The summary above covers all 794.

24 results from the 10 samples listed here: 2 detected, 22 not detected. Across the whole record it is 1,143 of 4,353. 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 Gulf Park, every result from 701 to 710 of 794 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
Oct 27, 2005
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
051028-015TH
Laboratory
MSDH Lab
131 ug/l , sample collected Oct 27, 2005, sampling point MRT000 TTHM 2950 EPA method 524.2 Oct 1, 2005 – Dec 31, 2005
Collected
Aug 10, 2005
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
050811-116NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Aug 10, 2005, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
0.09 mg/l , sample collected Aug 10, 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 10, 2005, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Collected
Aug 10, 2005
Sampling point
TF108 Treatment Plant T108
Sample type
Routine
Lab sample
050811-151NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Aug 10, 2005, sampling point TF108 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 10, 2005, sampling point TF108 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 10, 2005, sampling point TF108 Nitrite 1041 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Collected
Aug 10, 2005
Sampling point
TF107 Treatment Plant T107
Sample type
Routine
Lab sample
050811-117NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Aug 10, 2005, sampling point TF107 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 10, 2005, sampling point TF107 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 10, 2005, sampling point TF107 Nitrite 1041 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Collected
Aug 10, 2005
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
050811-108NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Aug 10, 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 10, 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 10, 2005, sampling point TF102 Nitrite 1041 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Collected
Aug 10, 2005
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
050811-133NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Aug 10, 2005, sampling point TF103 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 10, 2005, sampling point TF103 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 10, 2005, sampling point TF103 Nitrite 1041 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Collected
Aug 10, 2005
Sampling point
TF106 Treatment Plant T106
Sample type
Routine
Lab sample
050811-119NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Aug 10, 2005, sampling point TF106 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 10, 2005, sampling point TF106 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 10, 2005, sampling point TF106 Nitrite 1041 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Collected
Aug 8, 2005
Sampling point
TF109 Treatment Plant T109
Sample type
Routine
Lab sample
050809-143NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Aug 8, 2005, sampling point TF109 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 8, 2005, sampling point TF109 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 8, 2005, sampling point TF109 Nitrite 1041 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Collected
Mar 16, 2005
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
050317-037CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Mar 16, 2005, sampling point TF103 Cyanide 1024 EPA method QC10204001X Jan 1, 2005 – Dec 31, 2007
Collected
Mar 16, 2005
Sampling point
TF107 Treatment Plant T107
Sample type
Routine
Lab sample
050317-001CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Mar 16, 2005, sampling point TF107 Cyanide 1024 EPA method QC10204001X Jan 1, 2005 – Dec 31, 2007

Routine (10).