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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

MS0530018 , Chapel Hill-Pleasant Grove W/A

18 of the 57 analytes this system has been tested for have been detected at least once, across 213 samples on record.

The other 39 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 213 samples on record, detections range from October 13, 2003 to July 30, 2026. 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 Chapel Hill-Pleasant Grove W/A, 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 63 of 63 results Aug 14, 2007 Sep 12, 2023
Barium 1010 Inorganic Chemical 22 of 22 results Oct 13, 2003 Jul 30, 2026
Fluoride 1025 Inorganic Chemical 20 of 22 results Oct 13, 2003 Jul 30, 2026
Lead 1030 Inorganic Chemical 15 of 63 results Aug 14, 2007 Jul 11, 2017
Gross Alpha, Incl. Radon & U 4002 Radionuclide 10 of 10 results Dec 7, 2011 Jul 10, 2012
Chromium 1020 Inorganic Chemical 7 of 22 results Oct 13, 2003 Mar 7, 2016
Nitrate-Nitrite 1038 Inorganic Chemical 6 of 43 results Aug 24, 2005 Mar 25, 2025
Nitrate 1040 Inorganic Chemical 6 of 43 results Aug 24, 2005 Mar 25, 2025
Nickel 1036 Inorganic Chemical 5 of 20 results Mar 15, 2004 Apr 29, 2013
Selenium 1045 Inorganic Chemical 5 of 22 results Mar 15, 2004 Mar 20, 2006
Sodium 1052 Inorganic Chemical 4 of 4 results Sep 26, 2019 Jul 30, 2026
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 3 of 21 results Aug 29, 2007 Sep 30, 2020
TTHM 2950 Organic Chemical 3 of 21 results Jul 19, 2004 Jun 14, 2010
Monobromoacetic Acid 2453 Organic Chemical 1 of 15 results Sep 30, 2020 Sep 30, 2020
Bromoform 2942 Organic Chemical 1 of 16 results Aug 29, 2007 Aug 29, 2007
Bromodichloromethane 2943 Organic Chemical 1 of 16 results Aug 29, 2007 Aug 29, 2007
Dibromochloromethane 2944 Organic Chemical 1 of 16 results Aug 29, 2007 Aug 29, 2007
Arsenic 1005 Inorganic Chemical 1 of 22 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 41–50 of 213 samples, newest first — collected September 27, 2021 to July 25, 2022. The summary above covers all 213.

34 results from the 10 samples listed here: 0 detected, 34 not detected. Across the whole record it is 174 of 1,048. 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 Chapel Hill-Pleasant Grove W/A, every result from 41 to 50 of 213 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
Jul 25, 2022 13:35
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
VO-220726-007
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2022 13:35, sampling point TF102 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2022 13:35, sampling point TF102 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2022 13:35, sampling point TF102 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2022 13:35, sampling point TF102 Dichloromethane 2964 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2022 13:35, sampling point TF102 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2022 13:35, sampling point TF102 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2022 13:35, sampling point TF102 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2022 13:35, sampling point TF102 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2022 13:35, sampling point TF102 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2022 13:35, sampling point TF102 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2022 13:35, sampling point TF102 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2022 13:35, sampling point TF102 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2022 13:35, sampling point TF102 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2022 13:35, sampling point TF102 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2022 13:35, sampling point TF102 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2022 13:35, sampling point TF102 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2022 13:35, sampling point TF102 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2022 13:35, sampling point TF102 Benzene 2990 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2022 13:35, sampling point TF102 Toluene 2991 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2022 13:35, sampling point TF102 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 25, 2022 13:35, sampling point TF102 Styrene 2996 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Collected
Jun 14, 2022 14:15
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
HA-220615-019
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 14, 2022 14:15, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Not recorded
Collected
Jun 14, 2022 14:00
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
TH-220615-019
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 14, 2022 14:00, sampling point MRT000 TTHM 2950 EPA method 524.2 Not recorded
Collected
May 17, 2022 14:20
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
CN-220518-035
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected May 17, 2022 14:20, sampling point TF103 Cyanide 1024 EPA method QC10204001X Jan 1, 2020 – Dec 31, 2022
Collected
May 17, 2022 14:04
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
CN-220518-034
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected May 17, 2022 14:04, sampling point TF102 Cyanide 1024 EPA method QC10204001X Jan 1, 2020 – Dec 31, 2022
Collected
Mar 9, 2022 16:25
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
NI-220310-013
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 9, 2022 16:25, 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 Mar 9, 2022 16:25, 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 Mar 9, 2022 16:25, sampling point TF103 Nitrite 1041 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Collected
Mar 9, 2022 16:00
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
NI-220310-014
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 9, 2022 16:00, 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 Mar 9, 2022 16:00, 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 Mar 9, 2022 16:00, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Collected
Oct 11, 2021 13:45
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
RU-211012-018
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 11, 2021 13:45, sampling point TF103 Combined Uranium 4006 EPA method 200.8 Jan 1, 2013 – Dec 31, 2021
Collected
Oct 11, 2021 13:00
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
RU-211012-017
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 11, 2021 13:00, sampling point TF102 Combined Uranium 4006 EPA method 200.8 Jan 1, 2013 – Dec 31, 2021
Collected
Sep 27, 2021 13:10
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
HA-210928-011
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 27, 2021 13:10, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2021 – Dec 31, 2021

Routine (10).