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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

MS0570013 , Town of Summit

21 of the 57 analytes this system has been tested for have been detected at least once, across 212 samples on record.

The other 36 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 212 samples on record, detections range from October 15, 2003 to July 30, 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 Town of Summit, 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 61 of 61 results Aug 8, 2007 Sep 25, 2023
Lead 1030 Inorganic Chemical 49 of 61 results Aug 8, 2007 Sep 25, 2023
Arsenic 1005 Inorganic Chemical 20 of 20 results Oct 15, 2003 Apr 9, 2025
Barium 1010 Inorganic Chemical 20 of 20 results Oct 15, 2003 Apr 9, 2025
Fluoride 1025 Inorganic Chemical 15 of 20 results Oct 15, 2003 Apr 9, 2025
TTHM 2950 Organic Chemical 11 of 17 results Jul 28, 2004 Jul 30, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 10 of 10 results Dec 7, 2011 Jul 13, 2012
Chloroform 2941 Organic Chemical 9 of 12 results Oct 4, 2007 Jul 30, 2025
Bromodichloromethane 2943 Organic Chemical 9 of 12 results Oct 4, 2007 Jul 30, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 7 of 17 results Jul 1, 2010 Jul 31, 2024
Sodium 1052 Inorganic Chemical 6 of 6 results Oct 30, 2019 Apr 9, 2025
Dibromochloromethane 2944 Organic Chemical 5 of 12 results Mar 12, 2024 Sep 30, 2024
Nickel 1036 Inorganic Chemical 4 of 20 results Jun 3, 2013 Apr 9, 2025
Dichloroacetic Acid 2451 Organic Chemical 4 of 11 results Jul 1, 2010 Jul 10, 2024
Sulfate 1055 Inorganic Chemical 4 of 4 results Oct 15, 2003 Mar 15, 2004
Trichloroacetic Acid 2452 Organic Chemical 3 of 11 results Sep 9, 2013 Jul 10, 2024
Chromium 1020 Inorganic Chemical 2 of 20 results Apr 9, 2025 Apr 9, 2025
Dichloromethane 2964 Organic Chemical 2 of 14 results Aug 23, 2004 Aug 23, 2004
Xylenes, Total 2955 Organic Chemical 1 of 14 results Aug 10, 2022 Aug 10, 2022
Ethylbenzene 2992 Organic Chemical 1 of 14 results Aug 10, 2022 Aug 10, 2022
Selenium 1045 Inorganic Chemical 1 of 20 results Jan 25, 2010 Jan 25, 2010

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 table below lists 1–10 of 14 samples, newest first — collected April 9, 2025 to October 27, 2025. The summary above covers all 14.

48 results from the 10 samples listed here: 15 detected, 33 not detected. Across the whole record it is 244 of 984. 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 Town of Summit, every result from 1 to 10 of 14 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, 2025 13:45
Sampling point
TF081 Treatment Plant T081
Sample type
Routine
Lab sample
CN-251028-161
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Oct 27, 2025 13:45, sampling point TF081 Cyanide 1024 EPA method QC10204001X Jan 1, 2023 – Dec 31, 2025
Collected
Oct 27, 2025 13:30
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
CN-251028-160
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Oct 27, 2025 13:30, sampling point TF080 Cyanide 1024 EPA method QC10204001X Jan 1, 2023 – Dec 31, 2025
Collected
Sep 29, 2025 10:01
Sampling point
TF081 Treatment Plant T081
Sample type
Routine
Lab sample
IN-251001-004
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 29, 2025 10:01, sampling point TF081 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Sep 29, 2025 15:45
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
IN-251001-003
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 29, 2025 15:45, sampling point TF080 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Jul 30, 2025 14:30
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
810-157860-2
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Jul 30, 2025 14:30, sampling point SM2 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 30, 2025 14:30, sampling point SM2 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 30, 2025 14:30, sampling point SM2 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 30, 2025 14:30, sampling point SM2 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 30, 2025 14:30, sampling point SM2 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected Jul 30, 2025 14:30, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jul 1, 2025 – Sep 30, 2025
1.2 ug/l , sample collected Jul 30, 2025 14:30, sampling point SM2 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 30, 2025 14:30, sampling point SM2 Bromoform 2942 EPA method 524.2 Not recorded
0.61 ug/l , sample collected Jul 30, 2025 14:30, sampling point SM2 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 30, 2025 14:30, sampling point SM2 Dibromochloromethane 2944 EPA method 524.2 Not recorded
1.81 ug/l , sample collected Jul 30, 2025 14:30, sampling point SM2 TTHM 2950 EPA method 524.2 Jul 1, 2025 – Sep 30, 2025
Collected
Jul 30, 2025 14:30
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
810-157860-1
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Jul 30, 2025 14:30, sampling point SM1 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 30, 2025 14:30, sampling point SM1 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 30, 2025 14:30, sampling point SM1 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 30, 2025 14:30, sampling point SM1 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 30, 2025 14:30, sampling point SM1 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected Jul 30, 2025 14:30, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jul 1, 2025 – Sep 30, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 30, 2025 14:30, sampling point SM1 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 30, 2025 14:30, sampling point SM1 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 30, 2025 14:30, sampling point SM1 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 30, 2025 14:30, sampling point SM1 Dibromochloromethane 2944 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 30, 2025 14:30, sampling point SM1 TTHM 2950 EPA method 524.2 Jul 1, 2025 – Sep 30, 2025
Collected
Apr 9, 2025 15:00
Sampling point
TF081 Treatment Plant T081
Sample type
Routine
Lab sample
IN-250410-016
Laboratory
MSDH Lab
0.0033 mg/l , sample collected Apr 9, 2025 15:00, sampling point TF081 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0196 mg/l , sample collected Apr 9, 2025 15:00, sampling point TF081 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 9, 2025 15:00, sampling point TF081 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0013 mg/l , sample collected Apr 9, 2025 15:00, sampling point TF081 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.127 mg/l , sample collected Apr 9, 2025 15:00, sampling point TF081 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Dec 31, 2025
0.0009 mg/l , sample collected Apr 9, 2025 15:00, sampling point TF081 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Apr 9, 2025 15:00, sampling point TF081 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 9, 2025 15:00, sampling point TF081 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 9, 2025 15:00, sampling point TF081 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 9, 2025 15:00, sampling point TF081 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Apr 9, 2025 14:30
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
IN-250410-015
Laboratory
MSDH Lab
0.0032 mg/l , sample collected Apr 9, 2025 14:30, sampling point TF080 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0225 mg/l , sample collected Apr 9, 2025 14:30, sampling point TF080 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 9, 2025 14:30, sampling point TF080 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0014 mg/l , sample collected Apr 9, 2025 14:30, sampling point TF080 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.12 mg/l , sample collected Apr 9, 2025 14:30, sampling point TF080 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Dec 31, 2025
0.001 mg/l , sample collected Apr 9, 2025 14:30, sampling point TF080 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Apr 9, 2025 14:30, sampling point TF080 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 9, 2025 14:30, sampling point TF080 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 9, 2025 14:30, sampling point TF080 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 9, 2025 14:30, sampling point TF080 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Apr 9, 2025 15:02
Sampling point
TF081 Treatment Plant T081
Sample type
Routine
Lab sample
NA-250410-002
Laboratory
MSDH Lab
18 mg/l , sample collected Apr 9, 2025 15:02, sampling point TF081 Sodium 1052 EPA method 200.7 Jan 1, 2023 – Dec 31, 2025
Collected
Apr 9, 2025 14:27
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
NA-250410-001
Laboratory
MSDH Lab
17.1 mg/l , sample collected Apr 9, 2025 14:27, sampling point TF080 Sodium 1052 EPA method 200.7 Jan 1, 2023 – Dec 31, 2025

Routine (10).