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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

MS0540067 , Concord-Macedonia W/A

26 of the 57 analytes this system has been tested for have been detected at least once, across 207 samples on record.

The other 31 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 207 samples on record, detections range from October 13, 2003 to March 18, 2025. 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 Concord-Macedonia 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 52 of 52 results Jul 9, 2007 Sep 19, 2023
Lead 1030 Inorganic Chemical 38 of 52 results Jul 9, 2007 Sep 19, 2023
Barium 1010 Inorganic Chemical 20 of 20 results Oct 13, 2003 Mar 18, 2025
Fluoride 1025 Inorganic Chemical 20 of 20 results Oct 13, 2003 Mar 18, 2025
Chromium 1020 Inorganic Chemical 12 of 20 results Oct 13, 2003 Mar 9, 2016
TTHM 2950 Organic Chemical 10 of 12 results Jul 26, 2004 Dec 13, 2022
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 9 of 12 results Jul 26, 2004 Dec 13, 2022
Arsenic 1005 Inorganic Chemical 8 of 20 results Oct 13, 2003 Oct 11, 2022
Selenium 1045 Inorganic Chemical 8 of 20 results Oct 13, 2003 Mar 22, 2006
Chloroform 2941 Organic Chemical 5 of 6 results Jun 13, 2007 Aug 22, 2017
Dibromochloromethane 2944 Organic Chemical 5 of 6 results Jun 13, 2007 Aug 22, 2017
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 10 results Dec 15, 2011 Jul 17, 2012
Dichloroacetic Acid 2451 Organic Chemical 4 of 5 results Jul 1, 2008 Aug 22, 2017
Bromodichloromethane 2943 Organic Chemical 4 of 6 results Jun 13, 2007 Aug 22, 2017
Nitrate-Nitrite 1038 Inorganic Chemical 3 of 45 results Dec 4, 2019 Mar 9, 2022
Nitrate 1040 Inorganic Chemical 3 of 45 results Dec 4, 2019 Mar 9, 2022
Nickel 1036 Inorganic Chemical 3 of 20 results Mar 22, 2006 Apr 29, 2013
Xylenes, Total 2955 Organic Chemical 3 of 26 results May 24, 2004 Jul 30, 2009
Sodium 1052 Inorganic Chemical 2 of 2 results Sep 19, 2019 Sep 19, 2019
Dibromoacetic Acid 2454 Organic Chemical 2 of 5 results Jul 1, 2008 Aug 22, 2017
Bromoform 2942 Organic Chemical 2 of 6 results Jun 13, 2007 Aug 22, 2017
Cadmium 1015 Inorganic Chemical 2 of 20 results Apr 11, 2005 Apr 11, 2005
Dichloromethane 2964 Organic Chemical 2 of 26 results Aug 25, 2004 Aug 25, 2004
Trichloroacetic Acid 2452 Organic Chemical 1 of 5 results Aug 22, 2017 Aug 22, 2017
Toluene 2991 Organic Chemical 1 of 26 results Sep 12, 2007 Sep 12, 2007
Ethylbenzene 2992 Organic Chemical 1 of 26 results Sep 12, 2007 Sep 12, 2007

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 71–80 of 207 samples, newest first — collected June 4, 2013 to August 14, 2014. The summary above covers all 207.

28 results from the 10 samples listed here: 15 detected, 13 not detected. Across the whole record it is 225 of 1,154. 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 Concord-Macedonia W/A, every result from 71 to 80 of 207 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 14, 2014 06:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
140815-056PB
Laboratory
MSDH Lab
0.0073 mg/l , sample collected Aug 14, 2014 06:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
0.0011 mg/l , sample collected Aug 14, 2014 06:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
Aug 14, 2014 10:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
140815-055PB
Laboratory
MSDH Lab
0.0021 mg/l , sample collected Aug 14, 2014 10:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
0.0008 mg/l , sample collected Aug 14, 2014 10:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
Aug 14, 2014 07:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
140815-053PB
Laboratory
MSDH Lab
0.0815 mg/l , sample collected Aug 14, 2014 07:00, 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 14, 2014 07:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
Aug 14, 2014 07:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
140815-045PB
Laboratory
MSDH Lab
0.0019 mg/l , sample collected Aug 14, 2014 07:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
0.0008 mg/l , sample collected Aug 14, 2014 07:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
Aug 13, 2014 02:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
140815-054PB
Laboratory
MSDH Lab
0.0079 mg/l , sample collected Aug 13, 2014 02:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
0.0025 mg/l , sample collected Aug 13, 2014 02:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
Jul 21, 2014 16:07
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
140722-006TH
Laboratory
MSDH Lab
3.38 ug/l , sample collected Jul 21, 2014 16:07, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 16:07, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
2.11 ug/l , sample collected Jul 21, 2014 16:07, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
1.98 ug/l , sample collected Jul 21, 2014 16:07, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
7.47 ug/l , sample collected Jul 21, 2014 16:07, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2013 – Dec 31, 2015
Collected
Jul 21, 2014 16:09
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
140722-007HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Jul 21, 2014 16:09, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.002 mg/l , sample collected Jul 21, 2014 16:09, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 21, 2014 16:09, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 21, 2014 16:09, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 21, 2014 16:09, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.002 mg/l , sample collected Jul 21, 2014 16:09, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2013 – Dec 31, 2015
Collected
May 7, 2014 14:17
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
140508-051NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected May 7, 2014 14:17, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2014 – Dec 31, 2014
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected May 7, 2014 14:17, sampling point TF101 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 14:17, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2014 – Dec 31, 2014
Collected
May 7, 2014 14:35
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
140508-035NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected May 7, 2014 14:35, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2014 – Dec 31, 2014
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected May 7, 2014 14:35, 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 14:35, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2014 – Dec 31, 2014
Collected
Jun 4, 2013 02:40
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
130605-004CN
Laboratory
MSDH Lab
Not detected below 15 ug/l Minimum Reporting Level , sample collected Jun 4, 2013 02:40, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2011 – Dec 31, 2013

Routine (10).