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; the list of samples further down is narrowed.

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

Showing samples collected between September 25, 2024 and September 25, 2026. That is this page’s default, not a limit on what the agency records.

Show every sample on record

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The most recent samples, result by result

The 7 samples collected between September 25, 2024 and September 25, 2026 are listed below, newest first.

49 results from the 7 samples listed here: 17 detected, 32 not detected. 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 2 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 Hays Creek W/A-Minerva #2, every result from the 7 samples on record, 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 Nov 19, 2025 13:30 Sampling point SM1 Location withheld Sample type Routine Lab sample 810-172731-1 Laboratory Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Nov 19, 2025 13:30, sampling point SM1	Monochloroacetic Acid 2450 EPA method 552.2	Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 19, 2025 13:30, sampling point SM1	Dichloroacetic Acid 2451 EPA method 552.2	Not recorded
1.9 ug/l , sample collected Nov 19, 2025 13:30, sampling point SM1	Trichloroacetic Acid 2452 EPA method 552.2	Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 19, 2025 13:30, sampling point SM1	Monobromoacetic Acid 2453 EPA method 552.2	Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 19, 2025 13:30, sampling point SM1	Dibromoacetic Acid 2454 EPA method 552.2	Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected Nov 19, 2025 13:30, sampling point SM1	Total Haloacetic Acids (Haa5) 2456 EPA method 552.2	Jan 1, 2025 – Dec 31, 2025
6.8 ug/l , sample collected Nov 19, 2025 13:30, sampling point SM1	Chloroform 2941 EPA method 524.2	Not recorded
5.7 ug/l , sample collected Nov 19, 2025 13:30, sampling point SM1	Bromoform 2942 EPA method 524.2	Not recorded
14 ug/l , sample collected Nov 19, 2025 13:30, sampling point SM1	Bromodichloromethane 2943 EPA method 524.2	Not recorded
20 ug/l , sample collected Nov 19, 2025 13:30, sampling point SM1	Dibromochloromethane 2944 EPA method 524.2	Not recorded
46.5 ug/l , sample collected Nov 19, 2025 13:30, sampling point SM1	TTHM 2950 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Collected Sep 15, 2025 10:20 Sampling point TF101 Treatment Plant T101 Sample type Routine Lab sample CN-250916-006 Laboratory MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Sep 15, 2025 10:20, sampling point TF101	Cyanide 1024 EPA method QC10204001X	Jan 1, 2023 – Dec 31, 2025
Collected Mar 24, 2025 11:30 Sampling point TF101 Treatment Plant T101 Sample type Routine Lab sample NI-250325-004 Laboratory MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 24, 2025 11:30, sampling point TF101	Nitrate-Nitrite 1038 EPA method QC10107041C	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 24, 2025 11:30, sampling point TF101	Nitrate 1040 EPA method QC10107041C	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 24, 2025 11:30, sampling point TF101	Nitrite 1041 EPA method QC10107041C	Jan 1, 2025 – Dec 31, 2025
Collected Mar 17, 2025 12:20 Sampling point TF101 Treatment Plant T101 Sample type Routine Lab sample IN-250318-017 Laboratory MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 17, 2025 12:20, sampling point TF101	Arsenic 1005 EPA method 200.8	Jan 1, 2023 – Dec 31, 2025
0.0177 mg/l , sample collected Mar 17, 2025 12:20, sampling point TF101	Barium 1010 EPA method 200.8	Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 17, 2025 12:20, sampling point TF101	Cadmium 1015 EPA method 200.8	Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 17, 2025 12:20, sampling point TF101	Chromium 1020 EPA method 200.8	Jan 1, 2023 – Dec 31, 2025
0.173 mg/l , sample collected Mar 17, 2025 12:20, sampling point TF101	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 Mar 17, 2025 12:20, sampling point TF101	Mercury 1035 EPA method 200.8	Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 17, 2025 12:20, sampling point TF101	Nickel 1036 EPA method 200.8	Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Mar 17, 2025 12:20, sampling point TF101	Selenium 1045 EPA method 200.8	Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 17, 2025 12:20, sampling point TF101	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 Mar 17, 2025 12:20, sampling point TF101	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 Mar 17, 2025 12:20, sampling point TF101	Thallium, Total 1085 EPA method 200.8	Jan 1, 2023 – Dec 31, 2025
Collected Feb 24, 2025 13:00 Sampling point TF101 Treatment Plant T101 Sample type Routine Lab sample NA-250225-003 Laboratory MSDH Lab
104 mg/l , sample collected Feb 24, 2025 13:00, sampling point TF101	Sodium 1052 EPA method 200.7	Jan 1, 2023 – Dec 31, 2025
Collected Nov 5, 2024 09:00 Sampling point SM2 Location withheld Sample type Routine Lab sample 810-127127-2 Laboratory Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Nov 5, 2024 09:00, sampling point SM2	Monochloroacetic Acid 2450 EPA method 552.2	Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 5, 2024 09:00, sampling point SM2	Dichloroacetic Acid 2451 EPA method 552.2	Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 5, 2024 09:00, sampling point SM2	Trichloroacetic Acid 2452 EPA method 552.2	Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 5, 2024 09:00, sampling point SM2	Monobromoacetic Acid 2453 EPA method 552.2	Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 5, 2024 09:00, sampling point SM2	Dibromoacetic Acid 2454 EPA method 552.2	Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected Nov 5, 2024 09:00, sampling point SM2	Total Haloacetic Acids (Haa5) 2456 EPA method 552.2	Oct 1, 2024 – Dec 31, 2024
1.5 ug/l , sample collected Nov 5, 2024 09:00, sampling point SM2	Chloroform 2941 EPA method 524.2	Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 5, 2024 09:00, sampling point SM2	Bromoform 2942 EPA method 524.2	Not recorded
0.82 ug/l , sample collected Nov 5, 2024 09:00, sampling point SM2	Bromodichloromethane 2943 EPA method 524.2	Not recorded
0.69 ug/l , sample collected Nov 5, 2024 09:00, sampling point SM2	Dibromochloromethane 2944 EPA method 524.2	Not recorded
3.01 ug/l , sample collected Nov 5, 2024 09:00, sampling point SM2	TTHM 2950 EPA method 524.2	Oct 1, 2024 – Dec 31, 2024
Collected Nov 5, 2024 08:45 Sampling point SM1 Location withheld Sample type Routine Lab sample 810-127127-1 Laboratory Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Nov 5, 2024 08:45, sampling point SM1	Monochloroacetic Acid 2450 EPA method 552.2	Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 5, 2024 08:45, sampling point SM1	Dichloroacetic Acid 2451 EPA method 552.2	Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 5, 2024 08:45, sampling point SM1	Trichloroacetic Acid 2452 EPA method 552.2	Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 5, 2024 08:45, sampling point SM1	Monobromoacetic Acid 2453 EPA method 552.2	Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 5, 2024 08:45, sampling point SM1	Dibromoacetic Acid 2454 EPA method 552.2	Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected Nov 5, 2024 08:45, sampling point SM1	Total Haloacetic Acids (Haa5) 2456 EPA method 552.2	Oct 1, 2024 – Dec 31, 2024
1.5 ug/l , sample collected Nov 5, 2024 08:45, sampling point SM1	Chloroform 2941 EPA method 524.2	Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 5, 2024 08:45, sampling point SM1	Bromoform 2942 EPA method 524.2	Not recorded
0.85 ug/l , sample collected Nov 5, 2024 08:45, sampling point SM1	Bromodichloromethane 2943 EPA method 524.2	Not recorded
0.74 ug/l , sample collected Nov 5, 2024 08:45, sampling point SM1	Dibromochloromethane 2944 EPA method 524.2	Not recorded
3.09 ug/l , sample collected Nov 5, 2024 08:45, sampling point SM1	TTHM 2950 EPA method 524.2	Oct 1, 2024 – Dec 31, 2024

Collected
Nov 19, 2025 13:30

Sampling point
SM1 Location withheld

Sample type
Routine

Lab sample
810-172731-1

Laboratory
Eurofins Eaton Analytical South Bend in
- Monochloroacetic Acid 2450 EPA method 552.2
  
  Result
  Not detected below 2 ug/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Dichloroacetic Acid 2451 EPA method 552.2
  
  Result
  Not detected below 1 ug/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Trichloroacetic Acid 2452 EPA method 552.2
  
  Result
  1.9 ug/l
  
  Monitoring period
  Not recorded
- Monobromoacetic Acid 2453 EPA method 552.2
  
  Result
  Not detected below 1 ug/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Dibromoacetic Acid 2454 EPA method 552.2
  
  Result
  Not detected below 1 ug/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
  
  Result
  Not detected below 2 ug/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2025 – Dec 31, 2025
- Chloroform 2941 EPA method 524.2
  
  Result
  6.8 ug/l
  
  Monitoring period
  Not recorded
- Bromoform 2942 EPA method 524.2
  
  Result
  5.7 ug/l
  
  Monitoring period
  Not recorded
- Bromodichloromethane 2943 EPA method 524.2
  
  Result
  14 ug/l
  
  Monitoring period
  Not recorded
- Dibromochloromethane 2944 EPA method 524.2
  
  Result
  20 ug/l
  
  Monitoring period
  Not recorded
- TTHM 2950 EPA method 524.2
  
  Result
  46.5 ug/l
  
  Monitoring period
  Jan 1, 2025 – Dec 31, 2025
Collected
Sep 15, 2025 10:20

Sampling point
TF101 Treatment Plant T101

Sample type
Routine

Lab sample
CN-250916-006

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2023 – Dec 31, 2025
- Cyanide 1024 EPA method QC10204001X
  
  Result
  Not detected below 0.015 mg/l Minimum Reporting Level
Collected
Mar 24, 2025 11:30

Sampling point
TF101 Treatment Plant T101

Sample type
Routine

Lab sample
NI-250325-004

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2025 – Dec 31, 2025
- Nitrate-Nitrite 1038 EPA method QC10107041C
  
  Result
  Not detected below 0.1 mg/l Minimum Reporting Level
- Nitrate 1040 EPA method QC10107041C
  
  Result
  Not detected below 0.08 mg/l Minimum Reporting Level
- Nitrite 1041 EPA method QC10107041C
  
  Result
  Not detected below 0.02 mg/l Minimum Reporting Level
Collected
Mar 17, 2025 12:20

Sampling point
TF101 Treatment Plant T101

Sample type
Routine

Lab sample
IN-250318-017

Laboratory
MSDH Lab
- Arsenic 1005 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2023 – Dec 31, 2025
- Barium 1010 EPA method 200.8
  
  Result
  0.0177 mg/l
  
  Monitoring period
  Jan 1, 2023 – Dec 31, 2025
- Cadmium 1015 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2023 – Dec 31, 2025
- Chromium 1020 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2023 – Dec 31, 2025
- Fluoride 1025 EPA method QC 10-109-12-2-A
  
  Result
  0.173 mg/l
  
  Monitoring period
  Jan 1, 2023 – Dec 31, 2025
- Mercury 1035 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2023 – Dec 31, 2025
- Nickel 1036 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Selenium 1045 EPA method 200.8
  
  Result
  Not detected below 0.0025 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2023 – Dec 31, 2025
- Antimony, Total 1074 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2023 – Dec 31, 2025
- Beryllium, Total 1075 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2023 – Dec 31, 2025
- Thallium, Total 1085 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2023 – Dec 31, 2025
Collected
Feb 24, 2025 13:00

Sampling point
TF101 Treatment Plant T101

Sample type
Routine

Lab sample
NA-250225-003

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2023 – Dec 31, 2025
- Sodium 1052 EPA method 200.7
  
  Result
  104 mg/l
Collected
Nov 5, 2024 09:00

Sampling point
SM2 Location withheld

Sample type
Routine

Lab sample
810-127127-2

Laboratory
Eurofins Eaton Analytical South Bend in
- Monochloroacetic Acid 2450 EPA method 552.2
  
  Result
  Not detected below 2 ug/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Dichloroacetic Acid 2451 EPA method 552.2
  
  Result
  Not detected below 1 ug/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Trichloroacetic Acid 2452 EPA method 552.2
  
  Result
  Not detected below 1 ug/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Monobromoacetic Acid 2453 EPA method 552.2
  
  Result
  Not detected below 1 ug/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Dibromoacetic Acid 2454 EPA method 552.2
  
  Result
  Not detected below 1 ug/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
  
  Result
  Not detected below 2 ug/l Minimum Reporting Level
  
  Monitoring period
  Oct 1, 2024 – Dec 31, 2024
- Chloroform 2941 EPA method 524.2
  
  Result
  1.5 ug/l
  
  Monitoring period
  Not recorded
- Bromoform 2942 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Bromodichloromethane 2943 EPA method 524.2
  
  Result
  0.82 ug/l
  
  Monitoring period
  Not recorded
- Dibromochloromethane 2944 EPA method 524.2
  
  Result
  0.69 ug/l
  
  Monitoring period
  Not recorded
- TTHM 2950 EPA method 524.2
  
  Result
  3.01 ug/l
  
  Monitoring period
  Oct 1, 2024 – Dec 31, 2024
Collected
Nov 5, 2024 08:45

Sampling point
SM1 Location withheld

Sample type
Routine

Lab sample
810-127127-1

Laboratory
Eurofins Eaton Analytical South Bend in
- Monochloroacetic Acid 2450 EPA method 552.2
  
  Result
  Not detected below 2 ug/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Dichloroacetic Acid 2451 EPA method 552.2
  
  Result
  Not detected below 1 ug/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Trichloroacetic Acid 2452 EPA method 552.2
  
  Result
  Not detected below 1 ug/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Monobromoacetic Acid 2453 EPA method 552.2
  
  Result
  Not detected below 1 ug/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Dibromoacetic Acid 2454 EPA method 552.2
  
  Result
  Not detected below 1 ug/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
  
  Result
  Not detected below 2 ug/l Minimum Reporting Level
  
  Monitoring period
  Oct 1, 2024 – Dec 31, 2024
- Chloroform 2941 EPA method 524.2
  
  Result
  1.5 ug/l
  
  Monitoring period
  Not recorded
- Bromoform 2942 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Bromodichloromethane 2943 EPA method 524.2
  
  Result
  0.85 ug/l
  
  Monitoring period
  Not recorded
- Dibromochloromethane 2944 EPA method 524.2
  
  Result
  0.74 ug/l
  
  Monitoring period
  Not recorded
- TTHM 2950 EPA method 524.2
  
  Result
  3.09 ug/l
  
  Monitoring period
  Oct 1, 2024 – Dec 31, 2024

Routine (7).