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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

MS0530005 , Center Grove W/A #1

15 of the 58 analytes this system has been tested for have been detected at least once, across 113 samples on record.

The other 43 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 113 samples on record, detections range from October 13, 2003 to July 13, 2026. 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 Center Grove W/A #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 31 of 31 results Jul 11, 2007 Sep 30, 2023
Arsenic 1005 Inorganic Chemical 11 of 11 results Oct 13, 2003 Jul 13, 2026
Barium 1010 Inorganic Chemical 11 of 11 results Oct 13, 2003 Jul 13, 2026
Fluoride 1025 Inorganic Chemical 11 of 11 results Oct 13, 2003 Jul 13, 2026
Selenium 1045 Inorganic Chemical 10 of 11 results Oct 13, 2003 Jul 13, 2026
Chromium 1020 Inorganic Chemical 8 of 11 results Oct 13, 2003 Apr 8, 2025
Lead 1030 Inorganic Chemical 8 of 31 results Jul 11, 2007 Sep 23, 2020
Nickel 1036 Inorganic Chemical 5 of 10 results Mar 15, 2004 Apr 8, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 4 of 7 results Aug 29, 2007 Mar 12, 2025
Nitrate-Nitrite 1038 Inorganic Chemical 4 of 33 results Jun 7, 2004 May 23, 2016
TTHM 2950 Organic Chemical 3 of 7 results Aug 29, 2007 Dec 14, 2022
Nitrite 1041 Inorganic Chemical 3 of 33 results Jun 7, 2004 May 23, 2016
Nitrate 1040 Inorganic Chemical 3 of 33 results Jul 24, 2006 Mar 26, 2012
Sodium 1052 Inorganic Chemical 2 of 2 results Oct 19, 2019 Jul 13, 2026
Gross Alpha Particle Activity 4109 Radionuclide 2 of 4 results Jun 26, 2012 Sep 24, 2012

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

31 results from the 8 samples listed here: 12 detected, 19 not detected. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.

Units in this table

Antimony, Total is recorded on this page in ug/l and mg/l. 1 mg/l = 1,000 ug/l.

Arsenic is recorded on this page in ug/l and mg/l. 1 mg/l = 1,000 ug/l.

Barium is recorded on this page in ug/l and mg/l. 1 mg/l = 1,000 ug/l.

Beryllium, Total is recorded on this page in ug/l and mg/l. 1 mg/l = 1,000 ug/l.

Cadmium is recorded on this page in ug/l and mg/l. 1 mg/l = 1,000 ug/l.

Chromium is recorded on this page in ug/l and mg/l. 1 mg/l = 1,000 ug/l.

Mercury is recorded on this page in ug/l and mg/l. 1 mg/l = 1,000 ug/l.

Selenium is recorded on this page in ug/l and mg/l. 1 mg/l = 1,000 ug/l.

Thallium, Total is recorded on this page in ug/l and mg/l. 1 mg/l = 1,000 ug/l.

We withheld the location of 1 sampling point 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 Center Grove W/A #1, every result from the 8 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
Jul 13, 2026
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
35052049001
Laboratory
Pace Analytical Services, LLC
1.7 ug/l , sample collected Jul 13, 2026, sampling point TF101 Arsenic 1005 EPA method 200.8 Not recorded
116 ug/l , sample collected Jul 13, 2026, sampling point TF101 Barium 1010 EPA method 200.8 Not recorded
Not detected below 0.2 ug/l Minimum Reporting Level , sample collected Jul 13, 2026, sampling point TF101 Cadmium 1015 EPA method 200.8 Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected Jul 13, 2026, sampling point TF101 Chromium 1020 EPA method 200.8 Not recorded
0.28 mg/l , sample collected Jul 13, 2026, sampling point TF101 Fluoride 1025 EPA method 300.0 Not recorded
Not detected below 0.2 ug/l Minimum Reporting Level , sample collected Jul 13, 2026, sampling point TF101 Mercury 1035 EPA method 245.1 Not recorded
3.2 ug/l , sample collected Jul 13, 2026, sampling point TF101 Selenium 1045 EPA method 200.8 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 13, 2026, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Not recorded
Not detected below 0.1 ug/l Minimum Reporting Level , sample collected Jul 13, 2026, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 13, 2026, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Not recorded
Collected
Jul 13, 2026
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
35050467001
Laboratory
Pace Analytical Services, LLC
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Jul 13, 2026, sampling point TF101 Nitrate-Nitrite 1038 Not recorded
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Jul 13, 2026, sampling point TF101 Nitrate 1040 EPA method 353.2 Not recorded
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Jul 13, 2026, sampling point TF101 Nitrite 1041 EPA method 353.2 Not recorded
198000 ug/l , sample collected Jul 13, 2026, sampling point TF101 Sodium 1052 EPA method 200.7 Jan 1, 2024 – Dec 31, 2026
Collected
Nov 17, 2025 13:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
CN-251118-006
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Nov 17, 2025 13:30, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2023 – Dec 31, 2025
Collected
Sep 15, 2025 13:45
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
IN-250916-037
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 15, 2025 13:45, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Apr 8, 2025 11:15
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
IN-250409-008
Laboratory
MSDH Lab
0.0078 mg/l , sample collected Apr 8, 2025 11:15, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0877 mg/l , sample collected Apr 8, 2025 11:15, 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 Apr 8, 2025 11:15, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0016 mg/l , sample collected Apr 8, 2025 11:15, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.263 mg/l , sample collected Apr 8, 2025 11:15, sampling point TF101 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Dec 31, 2025
0.001 mg/l , sample collected Apr 8, 2025 11:15, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
0.0029 mg/l , sample collected Apr 8, 2025 11:15, 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 Apr 8, 2025 11:15, 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 Apr 8, 2025 11:15, 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 Apr 8, 2025 11:15, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Apr 8, 2025 13:25
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
NI-250409-041
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 8, 2025 13:25, 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 Apr 8, 2025 13:25, 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 Apr 8, 2025 13:25, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Collected
Mar 12, 2025 10:30
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
HA-250313-008
Laboratory
MSDH Lab
8.36 ug/l , sample collected Mar 12, 2025 10:30, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2024 – Dec 31, 2026
Collected
Mar 12, 2025 10:00
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
TH-250313-008
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Mar 12, 2025 10:00, sampling point SM1 TTHM 2950 EPA method 524.2 Jan 1, 2024 – Dec 31, 2026

Routine (8).