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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

MS0490023 , Hays Creek W/A-Minerva #2

19 of the 56 analytes this system has been tested for have been detected at least once, across 215 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 215 samples on record, detections range from October 8, 2003 to November 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 Hays Creek W/A-Minerva #2, 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 120 of 120 results Sep 22, 2004 Aug 19, 2024
Lead 1030 Inorganic Chemical 54 of 120 results Sep 22, 2004 Aug 19, 2024
TTHM 2950 Organic Chemical 11 of 18 results Jul 19, 2004 Nov 19, 2025
Barium 1010 Inorganic Chemical 9 of 9 results Oct 8, 2003 Mar 17, 2025
Fluoride 1025 Inorganic Chemical 9 of 9 results Oct 8, 2003 Mar 17, 2025
Chloroform 2941 Organic Chemical 8 of 13 results Aug 19, 2019 Nov 19, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 5 results Dec 15, 2011 Jul 17, 2012
Bromodichloromethane 2943 Organic Chemical 4 of 13 results Aug 19, 2019 Nov 19, 2025
Dibromochloromethane 2944 Organic Chemical 4 of 13 results Aug 19, 2019 Nov 19, 2025
Chromium 1020 Inorganic Chemical 4 of 9 results Oct 8, 2003 Mar 8, 2016
Sodium 1052 Inorganic Chemical 3 of 3 results Sep 16, 2019 Feb 24, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 3 of 19 results Jun 16, 2010 Sep 29, 2021
Trichloroacetic Acid 2452 Organic Chemical 2 of 14 results Aug 14, 2019 Nov 19, 2025
Bromoform 2942 Organic Chemical 2 of 13 results Aug 19, 2019 Nov 19, 2025
Dichloroacetic Acid 2451 Organic Chemical 2 of 14 results Aug 27, 2007 Aug 14, 2019
Nickel 1036 Inorganic Chemical 2 of 9 results Apr 29, 2013 May 6, 2019
Monobromoacetic Acid 2453 Organic Chemical 1 of 14 results Aug 14, 2019 Aug 14, 2019
Dibromoacetic Acid 2454 Organic Chemical 1 of 14 results Aug 14, 2019 Aug 14, 2019
Selenium 1045 Inorganic Chemical 1 of 9 results Apr 4, 2005 Apr 4, 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 191–200 of 215 samples, newest first — collected August 16, 2004 to September 22, 2004. The summary above covers all 215.

39 results from the 10 samples listed here: 12 detected, 27 not detected. Across the whole record it is 245 of 836. 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 Hays Creek W/A-Minerva #2, every result from 191 to 200 of 215 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
Sep 22, 2004
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
040923-175PB
Laboratory
MSDH Lab
0.0261 mg/l , sample collected Sep 22, 2004, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2004 – Dec 31, 2004
0.0007 mg/l , sample collected Sep 22, 2004, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2004 – Dec 31, 2004
Collected
Sep 22, 2004
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
040923-174PB
Laboratory
MSDH Lab
0.0119 mg/l , sample collected Sep 22, 2004, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 22, 2004, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2004 – Dec 31, 2004
Collected
Sep 22, 2004
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
040923-163PB
Laboratory
MSDH Lab
0.4198 mg/l , sample collected Sep 22, 2004, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2004 – Dec 31, 2004
0.0006 mg/l , sample collected Sep 22, 2004, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2004 – Dec 31, 2004
Collected
Sep 22, 2004
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
040923-161PB
Laboratory
MSDH Lab
0.022 mg/l , sample collected Sep 22, 2004, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 22, 2004, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2004 – Dec 31, 2004
Collected
Sep 22, 2004
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
040923-164PB
Laboratory
MSDH Lab
0.5755 mg/l , sample collected Sep 22, 2004, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 22, 2004, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2004 – Dec 31, 2004
Collected
Sep 22, 2004
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
040923-162PB
Laboratory
MSDH Lab
0.0115 mg/l , sample collected Sep 22, 2004, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 22, 2004, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2004 – Dec 31, 2004
Collected
Sep 22, 2004
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
040923-167PB
Laboratory
MSDH Lab
0.1167 mg/l , sample collected Sep 22, 2004, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 22, 2004, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2004 – Dec 31, 2004
Collected
Sep 22, 2004
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
040923-180PB
Laboratory
MSDH Lab
0.0255 mg/l , sample collected Sep 22, 2004, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 22, 2004, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2004 – Dec 31, 2004
Collected
Sep 22, 2004
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
040923-169PB
Laboratory
MSDH Lab
0.2898 mg/l , sample collected Sep 22, 2004, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2004 – Dec 31, 2004
0.001 mg/l , sample collected Sep 22, 2004, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2004 – Dec 31, 2004
Collected
Aug 16, 2004
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
040817-083VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 16, 2004, sampling point TF101 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 16, 2004, sampling point TF101 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 16, 2004, sampling point TF101 Xylenes, Total 2955 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 16, 2004, sampling point TF101 Dichloromethane 2964 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 16, 2004, sampling point TF101 O-Dichlorobenzene 2968 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 16, 2004, sampling point TF101 P-Dichlorobenzene 2969 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 16, 2004, sampling point TF101 Vinyl Chloride 2976 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 16, 2004, sampling point TF101 1,1-Dichloroethylene 2977 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 16, 2004, sampling point TF101 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 16, 2004, sampling point TF101 1,2-Dichloroethane 2980 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 16, 2004, sampling point TF101 1,1,1-Trichloroethane 2981 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 16, 2004, sampling point TF101 Carbon Tetrachloride 2982 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 16, 2004, sampling point TF101 1,2-Dichloropropane 2983 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 16, 2004, sampling point TF101 Trichloroethylene 2984 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 16, 2004, sampling point TF101 1,1,2-Trichloroethane 2985 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 16, 2004, sampling point TF101 Tetrachloroethylene 2987 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 16, 2004, sampling point TF101 Chlorobenzene 2989 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 16, 2004, sampling point TF101 Benzene 2990 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 16, 2004, sampling point TF101 Toluene 2991 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 16, 2004, sampling point TF101 Ethylbenzene 2992 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 16, 2004, sampling point TF101 Styrene 2996 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004

Routine (10).