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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 111–120 of 213 samples, newest first — collected April 29, 2013 to August 11, 2014. The summary above covers all 213.

45 results from the 10 samples listed here: 13 detected, 32 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 111 to 120 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
Aug 11, 2014 06:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
140813-002PB
Laboratory
MSDH Lab
0.0585 mg/l , sample collected Aug 11, 2014 06:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 11, 2014 06:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
Aug 11, 2014 10:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
140813-001PB
Laboratory
MSDH Lab
0.0229 mg/l , sample collected Aug 11, 2014 10:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 11, 2014 10:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
May 7, 2014 14:45
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
140508-014NI
Laboratory
MSDH Lab
0.21 mg/l , sample collected May 7, 2014 14:45, sampling point TF103 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2014 – Dec 31, 2014
0.21 mg/l , sample collected May 7, 2014 14:45, sampling point TF103 Nitrate 1040 EPA method QC10107041C Jan 1, 2014 – Dec 31, 2014
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected May 7, 2014 14:45, sampling point TF103 Nitrite 1041 EPA method QC10107041C Jan 1, 2014 – Dec 31, 2014
Collected
May 7, 2014 14:00
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
140508-013NI
Laboratory
MSDH Lab
0.2 mg/l , sample collected May 7, 2014 14:00, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2014 – Dec 31, 2014
0.2 mg/l , sample collected May 7, 2014 14:00, sampling point TF102 Nitrate 1040 EPA method QC10107041C Jan 1, 2014 – Dec 31, 2014
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected May 7, 2014 14:00, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2014 – Dec 31, 2014
Collected
Aug 19, 2013 12:35
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
130820-042CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Aug 19, 2013 12:35, sampling point TF102 Cyanide 1024 EPA method QC10204001X Jan 1, 2011 – Dec 31, 2013
Collected
Aug 19, 2013 12:05
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
130820-041CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Aug 19, 2013 12:05, sampling point TF103 Cyanide 1024 EPA method QC10204001X Jan 1, 2011 – Dec 31, 2013
Collected
Aug 19, 2013 12:45
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
130820-011TH
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 19, 2013 12:45, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 19, 2013 12:45, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 19, 2013 12:45, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 19, 2013 12:45, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
Not detected below 4 ug/l Minimum Reporting Level , sample collected Aug 19, 2013 12:45, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2011 – Dec 31, 2013
Collected
Aug 19, 2013 12:45
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
130820-011HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Aug 19, 2013 12:45, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 19, 2013 12:45, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 19, 2013 12:45, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 19, 2013 12:45, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 19, 2013 12:45, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 0.006 mg/l Minimum Reporting Level , sample collected Aug 19, 2013 12:45, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2011 – Dec 31, 2013
Collected
Apr 29, 2013 03:20
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
130430-020IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 29, 2013 03:20, sampling point TF103 Arsenic 1005 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.043 mg/l , sample collected Apr 29, 2013 03:20, sampling point TF103 Barium 1010 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 29, 2013 03:20, sampling point TF103 Cadmium 1015 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.0011 mg/l , sample collected Apr 29, 2013 03:20, sampling point TF103 Chromium 1020 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.114 mg/l , sample collected Apr 29, 2013 03:20, sampling point TF103 Fluoride 1025 EPA method 300.0 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 29, 2013 03:20, sampling point TF103 Mercury 1035 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.0049 mg/l , sample collected Apr 29, 2013 03:20, sampling point TF103 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Apr 29, 2013 03:20, sampling point TF103 Selenium 1045 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 29, 2013 03:20, sampling point TF103 Antimony, Total 1074 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 29, 2013 03:20, sampling point TF103 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 29, 2013 03:20, sampling point TF103 Thallium, Total 1085 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Collected
Apr 29, 2013 03:00
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
130430-019IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 29, 2013 03:00, sampling point TF102 Arsenic 1005 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.0419 mg/l , sample collected Apr 29, 2013 03:00, sampling point TF102 Barium 1010 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 29, 2013 03:00, sampling point TF102 Cadmium 1015 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 29, 2013 03:00, sampling point TF102 Chromium 1020 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.113 mg/l , sample collected Apr 29, 2013 03:00, sampling point TF102 Fluoride 1025 EPA method 300.0 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 29, 2013 03:00, sampling point TF102 Mercury 1035 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.0042 mg/l , sample collected Apr 29, 2013 03:00, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Apr 29, 2013 03:00, sampling point TF102 Selenium 1045 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 29, 2013 03:00, sampling point TF102 Antimony, Total 1074 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 29, 2013 03:00, sampling point TF102 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 29, 2013 03:00, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013

Routine (10).