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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

MS0650008 , City of Raleigh

42 of the 73 analytes this system has been tested for have been detected at least once, across 346 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 346 samples on record, detections range from October 27, 2003 to July 23, 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 City of Raleigh, 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 14, 2007 Jul 24, 2023
Lead 1030 Inorganic Chemical 37 of 61 results Aug 14, 2007 Jul 24, 2023
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 32 of 32 results Sep 20, 2004 Aug 26, 2025
Fluoride 1025 Inorganic Chemical 32 of 33 results Oct 27, 2003 Mar 24, 2025
TTHM 2950 Organic Chemical 31 of 32 results Sep 20, 2004 Aug 26, 2025
Barium 1010 Inorganic Chemical 30 of 30 results Oct 27, 2003 Mar 24, 2025
Dichloroacetic Acid 2451 Organic Chemical 23 of 23 results Mar 16, 2009 Aug 26, 2025
Trichloroacetic Acid 2452 Organic Chemical 23 of 23 results Mar 16, 2009 Aug 26, 2025
Chloroform 2941 Organic Chemical 23 of 24 results Oct 5, 2006 Aug 26, 2025
Bromodichloromethane 2943 Organic Chemical 21 of 24 results Oct 5, 2006 Aug 26, 2025
Chromium 1020 Inorganic Chemical 15 of 30 results Oct 27, 2003 Mar 24, 2025
Sodium 1052 Inorganic Chemical 12 of 12 results Jun 4, 2009 Jul 23, 2026
Nickel 1036 Inorganic Chemical 11 of 30 results Oct 27, 2003 Mar 24, 2025
Monobromoacetic Acid 2453 Organic Chemical 11 of 23 results Mar 16, 2009 Dec 5, 2017
Nitrate-Nitrite 1038 Inorganic Chemical 9 of 66 results Mar 30, 2011 May 10, 2021
Nitrate 1040 Inorganic Chemical 9 of 66 results Mar 30, 2011 May 10, 2021
Sulfate 1055 Inorganic Chemical 9 of 9 results Oct 27, 2003 Jun 4, 2009
Xylenes, Total 2955 Organic Chemical 6 of 80 results Dec 7, 2004 Oct 17, 2022
Monochloroacetic Acid 2450 Organic Chemical 5 of 23 results Dec 14, 2009 Jul 11, 2018
Carbon Tetrachloride 2982 Organic Chemical 5 of 80 results Jun 10, 2004 Oct 3, 2012
Ethylbenzene 2992 Organic Chemical 3 of 80 results Dec 7, 2004 Oct 17, 2022
Calcium 1016 Inorganic Chemical 3 of 3 results Jun 4, 2009 Jun 4, 2009
Potassium 1042 Inorganic Chemical 3 of 3 results Jun 4, 2009 Jun 4, 2009
Residue, Total, Filterable 1057 Water Quality 3 of 3 results Jun 4, 2009 Jun 4, 2009
Alkalinity, Caco3 Stability 1067 Water Quality 3 of 3 results Jun 4, 2009 Jun 4, 2009
Carbon Dioxide 1901 Water Quality 3 of 3 results Jun 4, 2009 Jun 4, 2009
Color 1905 Water Quality 3 of 3 results Jun 4, 2009 Jun 4, 2009
Hardness, Total (As Caco3) 1915 Water Quality 3 of 3 results Jun 4, 2009 Jun 4, 2009
PH 1925 Water Quality 3 of 3 results Jun 4, 2009 Jun 4, 2009
Alkalinity, Total 1927 Water Quality 3 of 3 results Jun 4, 2009 Jun 4, 2009
Iron, Field Result FEFD Inorganic Chemical 3 of 3 results Jun 4, 2009 Jun 4, 2009
Calculated Sodium NACA Water Quality 3 of 3 results Jun 4, 2009 Jun 4, 2009
PH, Field Result PHFD Water Quality 3 of 3 results Jun 4, 2009 Jun 4, 2009
Dichloromethane 2964 Organic Chemical 3 of 80 results Aug 30, 2004 Aug 20, 2008
Dibromoacetic Acid 2454 Organic Chemical 2 of 23 results Sep 16, 2009 Jun 22, 2011
Nitrite 1041 Inorganic Chemical 2 of 66 results Aug 2, 2006 Aug 2, 2006
Combined Radium (-226 & -228) 4010 Radionuclide 1 of 1 result Oct 1, 2019 Oct 1, 2019
Radium-226 4020 Radionuclide 1 of 1 result Oct 1, 2019 Oct 1, 2019
Radium-228 4030 Radionuclide 1 of 1 result Oct 1, 2019 Oct 1, 2019
Tetrachloroethylene 2987 Organic Chemical 1 of 80 results Aug 20, 2008 Aug 20, 2008
Toluene 2991 Organic Chemical 1 of 80 results Aug 20, 2008 Aug 20, 2008
Cyanide 1024 Inorganic Chemical 1 of 30 results Apr 20, 2005 Apr 20, 2005

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 11–16 of 16 samples, newest first — collected November 14, 2024 to April 10, 2025. The summary above covers all 16.

58 results from the 6 samples listed here: 23 detected, 35 not detected. 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 City of Raleigh, every result from 11 to 16 of 16 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
Apr 10, 2025 08:05
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
NI-250410-043
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 10, 2025 08:05, 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 10, 2025 08:05, 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 10, 2025 08:05, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Collected
Mar 24, 2025 12:32
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
IN-250325-010
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 24, 2025 12:32, sampling point TF103 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0009 mg/l , sample collected Mar 24, 2025 12:32, sampling point TF103 Barium 1010 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 24, 2025 12:32, sampling point TF103 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0008 mg/l , sample collected Mar 24, 2025 12:32, sampling point TF103 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.168 mg/l , sample collected Mar 24, 2025 12:32, sampling point TF103 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 24, 2025 12:32, sampling point TF103 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0005 mg/l , sample collected Mar 24, 2025 12:32, sampling point TF103 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Mar 24, 2025 12:32, sampling point TF103 Selenium 1045 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 24, 2025 12:32, sampling point TF103 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 Mar 24, 2025 12:32, sampling point TF103 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 Mar 24, 2025 12:32, sampling point TF103 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Mar 24, 2025 12:25
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
IN-250325-011
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 24, 2025 12:25, sampling point TF102 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0009 mg/l , sample collected Mar 24, 2025 12:25, sampling point TF102 Barium 1010 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 24, 2025 12:25, sampling point TF102 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0007 mg/l , sample collected Mar 24, 2025 12:25, sampling point TF102 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.172 mg/l , sample collected Mar 24, 2025 12:25, sampling point TF102 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 24, 2025 12:25, sampling point TF102 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 24, 2025 12:25, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Mar 24, 2025 12:25, sampling point TF102 Selenium 1045 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 24, 2025 12:25, sampling point TF102 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 Mar 24, 2025 12:25, sampling point TF102 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 Mar 24, 2025 12:25, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Mar 24, 2025 12:39
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
IN-250325-009
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 24, 2025 12:39, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0009 mg/l , sample collected Mar 24, 2025 12:39, 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 Mar 24, 2025 12:39, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0011 mg/l , sample collected Mar 24, 2025 12:39, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.168 mg/l , sample collected Mar 24, 2025 12:39, sampling point TF101 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 24, 2025 12:39, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0008 mg/l , sample collected Mar 24, 2025 12:39, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Mar 24, 2025 12:39, 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 Mar 24, 2025 12:39, 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 Mar 24, 2025 12:39, 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 Mar 24, 2025 12:39, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Nov 14, 2024 13:20
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
810-128381-2
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Nov 14, 2024 13:20, sampling point SM2 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
6.1 ug/l , sample collected Nov 14, 2024 13:20, sampling point SM2 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
10 ug/l , sample collected Nov 14, 2024 13:20, sampling point SM2 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 14, 2024 13:20, sampling point SM2 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 14, 2024 13:20, sampling point SM2 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
16.1 ug/l , sample collected Nov 14, 2024 13:20, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Oct 1, 2024 – Dec 31, 2024
17 ug/l , sample collected Nov 14, 2024 13:20, sampling point SM2 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 14, 2024 13:20, sampling point SM2 Bromoform 2942 EPA method 524.2 Not recorded
3 ug/l , sample collected Nov 14, 2024 13:20, sampling point SM2 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 14, 2024 13:20, sampling point SM2 Dibromochloromethane 2944 EPA method 524.2 Not recorded
20 ug/l , sample collected Nov 14, 2024 13:20, sampling point SM2 TTHM 2950 EPA method 524.2 Oct 1, 2024 – Dec 31, 2024
Collected
Nov 14, 2024 13:30
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
810-128381-1
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Nov 14, 2024 13:30, sampling point SM1 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
6.2 ug/l , sample collected Nov 14, 2024 13:30, sampling point SM1 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
10 ug/l , sample collected Nov 14, 2024 13:30, sampling point SM1 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 14, 2024 13:30, sampling point SM1 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 14, 2024 13:30, sampling point SM1 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
16.2 ug/l , sample collected Nov 14, 2024 13:30, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Oct 1, 2024 – Dec 31, 2024
20 ug/l , sample collected Nov 14, 2024 13:30, sampling point SM1 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 14, 2024 13:30, sampling point SM1 Bromoform 2942 EPA method 524.2 Not recorded
3.3 ug/l , sample collected Nov 14, 2024 13:30, sampling point SM1 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 14, 2024 13:30, sampling point SM1 Dibromochloromethane 2944 EPA method 524.2 Not recorded
23.3 ug/l , sample collected Nov 14, 2024 13:30, sampling point SM1 TTHM 2950 EPA method 524.2 Oct 1, 2024 – Dec 31, 2024

Routine (6).