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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

MS0130018 , Golden Triangle Water Assn #1

39 of the 71 analytes this system has been tested for have been detected at least once, across 367 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 367 samples on record, detections range from August 9, 1993 to August 19, 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 Golden Triangle Water Assn #1, 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 128 of 149 results Aug 9, 1993 Aug 19, 2025
Lead 1030 Inorganic Chemical 103 of 150 results Aug 9, 1993 Aug 19, 2025
Barium 1010 Inorganic Chemical 32 of 32 results Sep 8, 2003 Feb 5, 2025
Fluoride 1025 Inorganic Chemical 32 of 33 results Sep 8, 2003 Feb 5, 2025
Chromium 1020 Inorganic Chemical 20 of 32 results Jan 26, 2004 Feb 5, 2025
Arsenic 1005 Inorganic Chemical 17 of 32 results Jan 26, 2004 Feb 5, 2025
Selenium 1045 Inorganic Chemical 16 of 32 results Sep 8, 2003 Feb 5, 2025
Nickel 1036 Inorganic Chemical 13 of 32 results Jan 26, 2004 May 20, 2019
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 12 of 17 results Jul 9, 2007 Mar 6, 2025
Sodium 1052 Inorganic Chemical 10 of 10 results Jan 17, 2014 Oct 30, 2024
Gross Alpha, Incl. Radon & U 4002 Radionuclide 10 of 12 results Mar 7, 2012 Oct 4, 2012
Dichloroacetic Acid 2451 Organic Chemical 9 of 14 results Dec 17, 2019 Mar 6, 2025
TTHM 2950 Organic Chemical 9 of 16 results May 10, 2004 Mar 6, 2025
Trichloroacetic Acid 2452 Organic Chemical 6 of 14 results Aug 21, 2024 Mar 6, 2025
Chloroform 2941 Organic Chemical 6 of 14 results May 20, 2024 Mar 6, 2025
Nitrate-Nitrite 1038 Inorganic Chemical 4 of 65 results Feb 13, 2024 Feb 12, 2025
Dibromoacetic Acid 2454 Organic Chemical 4 of 14 results Aug 13, 2008 May 20, 2024
Nitrite 1041 Inorganic Chemical 3 of 65 results Feb 12, 2025 Feb 12, 2025
Monochloroacetic Acid 2450 Organic Chemical 3 of 14 results Dec 17, 2019 May 20, 2024
Bromoform 2942 Organic Chemical 3 of 14 results Aug 13, 2008 May 20, 2024
Cadmium 1015 Inorganic Chemical 3 of 32 results Feb 14, 2005 Jan 23, 2006
Xylenes, Total 2955 Organic Chemical 2 of 28 results Apr 14, 2020 Feb 28, 2024
Toluene 2991 Organic Chemical 2 of 28 results Apr 14, 2020 Feb 28, 2024
Nitrate 1040 Inorganic Chemical 2 of 65 results May 3, 2004 Feb 13, 2024
Monobromoacetic Acid 2453 Organic Chemical 1 of 14 results Dec 17, 2019 Dec 17, 2019
Calcium 1016 Inorganic Chemical 1 of 1 result Jan 17, 2014 Jan 17, 2014
Chloride 1017 Inorganic Chemical 1 of 1 result Jan 17, 2014 Jan 17, 2014
Magnesium 1031 Inorganic Chemical 1 of 1 result Jan 17, 2014 Jan 17, 2014
Manganese 1032 Inorganic Chemical 1 of 1 result Jan 17, 2014 Jan 17, 2014
Potassium 1042 Inorganic Chemical 1 of 1 result Jan 17, 2014 Jan 17, 2014
Residue, Total, Filterable 1057 Water Quality 1 of 1 result Jan 17, 2014 Jan 17, 2014
Alkalinity, Caco3 Stability 1067 Water Quality 1 of 1 result Jan 17, 2014 Jan 17, 2014
Color 1905 Water Quality 1 of 1 result Jan 17, 2014 Jan 17, 2014
Hardness, Total (As Caco3) 1915 Water Quality 1 of 1 result Jan 17, 2014 Jan 17, 2014
PH 1925 Water Quality 1 of 1 result Jan 17, 2014 Jan 17, 2014
Alkalinity, Total 1927 Water Quality 1 of 1 result Jan 17, 2014 Jan 17, 2014
Iron, Field Result FEFD Inorganic Chemical 1 of 1 result Jan 17, 2014 Jan 17, 2014
Calculated Sodium NACA Water Quality 1 of 1 result Jan 17, 2014 Jan 17, 2014
Dibromochloromethane 2944 Organic Chemical 1 of 14 results Aug 13, 2008 Aug 13, 2008

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 367 samples, newest first — collected July 19, 2022 to February 13, 2024. The summary above covers all 367.

55 results from the 10 samples listed here: 7 detected, 48 not detected. Across the whole record it is 464 of 1,720. 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 Golden Triangle Water Assn #1, every result from 41 to 50 of 367 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
Feb 13, 2024 13:00
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
NI-240214-039
Laboratory
MSDH Lab
0.123 mg/l , sample collected Feb 13, 2024 13:00, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
0.123 mg/l , sample collected Feb 13, 2024 13:00, sampling point TF102 Nitrate 1040 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 13, 2024 13:00, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Collected
Feb 7, 2024 13:15
Sampling point
TF104 Treatment Facility TF104
Sample type
Routine
Lab sample
IN-240208-011
Laboratory
MSDH Lab
0.0024 mg/l , sample collected Feb 7, 2024 13:15, sampling point TF104 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0267 mg/l , sample collected Feb 7, 2024 13:15, sampling point TF104 Barium 1010 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 7, 2024 13:15, sampling point TF104 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0008 mg/l , sample collected Feb 7, 2024 13:15, sampling point TF104 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
1.73 mg/l , sample collected Feb 7, 2024 13:15, sampling point TF104 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 7, 2024 13:15, sampling point TF104 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 7, 2024 13:15, sampling point TF104 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Feb 7, 2024 13:15, sampling point TF104 Selenium 1045 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 7, 2024 13:15, sampling point TF104 Antimony, Total 1074 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 7, 2024 13:15, sampling point TF104 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 7, 2024 13:15, sampling point TF104 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Dec 12, 2023 12:50
Sampling point
TF104 Treatment Facility TF104
Sample type
Routine
Lab sample
VO-231213-006
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 12, 2023 12:50, sampling point TF104 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 12, 2023 12:50, sampling point TF104 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 12, 2023 12:50, sampling point TF104 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 12, 2023 12:50, sampling point TF104 Dichloromethane 2964 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 12, 2023 12:50, sampling point TF104 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 12, 2023 12:50, sampling point TF104 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 12, 2023 12:50, sampling point TF104 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 12, 2023 12:50, sampling point TF104 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 12, 2023 12:50, sampling point TF104 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 12, 2023 12:50, sampling point TF104 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 12, 2023 12:50, sampling point TF104 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 12, 2023 12:50, sampling point TF104 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 12, 2023 12:50, sampling point TF104 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 12, 2023 12:50, sampling point TF104 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 12, 2023 12:50, sampling point TF104 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 12, 2023 12:50, sampling point TF104 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 12, 2023 12:50, sampling point TF104 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 12, 2023 12:50, sampling point TF104 Benzene 2990 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 12, 2023 12:50, sampling point TF104 Toluene 2991 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 12, 2023 12:50, sampling point TF104 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 12, 2023 12:50, sampling point TF104 Styrene 2996 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Collected
Jan 25, 2023 12:30
Sampling point
TF104 Treatment Facility TF104
Sample type
Routine
Lab sample
NI-230126-043
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 25, 2023 12:30, sampling point TF104 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 25, 2023 12:30, sampling point TF104 Nitrate 1040 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 25, 2023 12:30, sampling point TF104 Nitrite 1041 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Collected
Jan 25, 2023 11:00
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
NI-230126-042
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 25, 2023 11:00, sampling point TF103 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 25, 2023 11:00, sampling point TF103 Nitrate 1040 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 25, 2023 11:00, sampling point TF103 Nitrite 1041 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Collected
Jan 25, 2023 11:30
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
NI-230126-041
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 25, 2023 11:30, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 25, 2023 11:30, sampling point TF102 Nitrate 1040 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 25, 2023 11:30, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Collected
Sep 21, 2022 15:05
Sampling point
TF104 Treatment Facility TF104
Sample type
Routine
Lab sample
NI-220922-008
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Sep 21, 2022 15:05, sampling point TF104 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Sep 21, 2022 15:05, sampling point TF104 Nitrate 1040 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Sep 21, 2022 15:05, sampling point TF104 Nitrite 1041 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Collected
Sep 21, 2022 14:35
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
NI-220922-007
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Sep 21, 2022 14:35, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Sep 21, 2022 14:35, sampling point TF102 Nitrate 1040 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Sep 21, 2022 14:35, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Collected
Sep 21, 2022 14:15
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
NI-220922-006
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Sep 21, 2022 14:15, sampling point TF103 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Sep 21, 2022 14:15, sampling point TF103 Nitrate 1040 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Sep 21, 2022 14:15, sampling point TF103 Nitrite 1041 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Collected
Jul 19, 2022 05:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-220720-057
Laboratory
MSDH Lab
0.011 mg/l , sample collected Jul 19, 2022 05:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 19, 2022 05:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022

Routine (10).