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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

MS0380005 , City of Meridian

29 of the 59 analytes this system has been tested for have been detected at least once, across 469 samples on record.

The other 30 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 469 samples on record, detections range from August 6, 2002 to June 17, 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 City of Meridian, 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 217 of 236 results Jun 15, 2004 Sep 27, 2023
Lead 1030 Inorganic Chemical 79 of 236 results Jun 15, 2004 Sep 26, 2023
TTHM 2950 Organic Chemical 51 of 56 results Apr 15, 2004 Jun 17, 2026
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 37 of 56 results Sep 8, 2005 Apr 22, 2025
Chloroform 2941 Organic Chemical 34 of 36 results Aug 3, 2006 Jun 17, 2026
Bromodichloromethane 2943 Organic Chemical 29 of 36 results Aug 3, 2006 Jun 17, 2026
Dibromochloromethane 2944 Organic Chemical 22 of 36 results Aug 3, 2006 Jun 17, 2026
Dichloroacetic Acid 2451 Organic Chemical 19 of 34 results Jul 1, 2008 Jun 25, 2020
Barium 1010 Inorganic Chemical 18 of 18 results Aug 6, 2002 Feb 26, 2025
Fluoride 1025 Inorganic Chemical 18 of 18 results Aug 6, 2002 Feb 26, 2025
Monochloroacetic Acid 2450 Organic Chemical 10 of 34 results Jul 1, 2008 Jun 13, 2018
Nickel 1036 Inorganic Chemical 7 of 18 results Aug 6, 2002 Feb 26, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 7 of 7 results Mar 8, 2012 May 22, 2019
Bromoform 2942 Organic Chemical 6 of 36 results Aug 18, 2010 Jun 17, 2026
Sodium 1052 Inorganic Chemical 6 of 6 results Sep 25, 2019 Feb 10, 2025
Chromium 1020 Inorganic Chemical 6 of 18 results Aug 6, 2002 Apr 15, 2015
Sulfate 1055 Inorganic Chemical 4 of 4 results Aug 6, 2002 Mar 1, 2004
Monobromoacetic Acid 2453 Organic Chemical 3 of 34 results Jun 6, 2012 Sep 10, 2020
Combined Radium (-226 & -228) 4010 Radionuclide 3 of 14 results Jun 24, 2009 May 22, 2019
Gross Alpha, Excl. Radon & U 4000 Radionuclide 3 of 6 results Dec 23, 2008 Oct 29, 2009
Gross Alpha Particle Activity 4109 Radionuclide 3 of 6 results Dec 23, 2008 Oct 29, 2009
Dibromoacetic Acid 2454 Organic Chemical 2 of 34 results Nov 20, 2013 Aug 13, 2019
Radium-226 4020 Radionuclide 2 of 13 results Jun 24, 2009 May 22, 2019
Radium-228 4030 Radionuclide 2 of 13 results Jun 24, 2009 May 22, 2019
Gross Beta Particle Activity 4100 Radionuclide 2 of 2 results Jun 24, 2009 Oct 29, 2009
Dichloromethane 2964 Organic Chemical 2 of 14 results Aug 12, 2004 Aug 12, 2004
Arsenic 1005 Inorganic Chemical 1 of 18 results Mar 1, 2004 Mar 1, 2004
Selenium 1045 Inorganic Chemical 1 of 18 results Mar 1, 2004 Mar 1, 2004
Mercury 1035 Inorganic Chemical 1 of 18 results Aug 6, 2002 Aug 6, 2002

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 51–60 of 469 samples, newest first — collected June 21, 2022 to June 6, 2023. The summary above covers all 469.

50 results from the 10 samples listed here: 11 detected, 39 not detected. Across the whole record it is 595 of 1,620. 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 1 sampling point 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 Meridian, every result from 51 to 60 of 469 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
Jun 6, 2023 11:36
Sampling point
SM3 Ind Park (Site 11)
Sample type
Routine
Lab sample
HA-230607-006
Laboratory
MSDH Lab
3.43 ug/l , sample collected Jun 6, 2023 11:36, sampling point SM3 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2023 – Dec 31, 2023
Collected
Jun 6, 2023 12:00
Sampling point
SM4 Location withheld
Sample type
Routine
Lab sample
TH-230607-007
Laboratory
MSDH Lab
4.01 ug/l , sample collected Jun 6, 2023 12:00, sampling point SM4 TTHM 2950 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Collected
Jun 6, 2023 11:38
Sampling point
SM3 Ind Park (Site 11)
Sample type
Routine
Lab sample
TH-230607-006
Laboratory
MSDH Lab
19.9 ug/l , sample collected Jun 6, 2023 11:38, sampling point SM3 TTHM 2950 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Collected
Dec 13, 2022 10:58
Sampling point
SM4 Location withheld
Sample type
Routine
Lab sample
HA-221214-036
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 13, 2022 10:58, sampling point SM4 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Not recorded
Collected
Dec 13, 2022 09:40
Sampling point
SM3 Ind Park (Site 11)
Sample type
Routine
Lab sample
HA-221214-035
Laboratory
MSDH Lab
2.13 ug/l , sample collected Dec 13, 2022 09:40, sampling point SM3 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Not recorded
Collected
Dec 13, 2022 10:56
Sampling point
SM4 Location withheld
Sample type
Routine
Lab sample
TH-221214-036
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 13, 2022 10:56, sampling point SM4 TTHM 2950 EPA method 524.2 Not recorded
Collected
Dec 13, 2022 09:38
Sampling point
SM3 Ind Park (Site 11)
Sample type
Routine
Lab sample
TH-221214-035
Laboratory
MSDH Lab
7.13 ug/l , sample collected Dec 13, 2022 09:38, sampling point SM3 TTHM 2950 EPA method 524.2 Not recorded
Collected
Aug 31, 2022 10:16
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
IN-220901-006
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 31, 2022 10:16, sampling point TF080 Arsenic 1005 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.0323 mg/l , sample collected Aug 31, 2022 10:16, sampling point TF080 Barium 1010 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 31, 2022 10:16, sampling point TF080 Cadmium 1015 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 31, 2022 10:16, sampling point TF080 Chromium 1020 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.63 mg/l , sample collected Aug 31, 2022 10:16, sampling point TF080 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 31, 2022 10:16, sampling point TF080 Mercury 1035 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.0007 mg/l , sample collected Aug 31, 2022 10:16, sampling point TF080 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Aug 31, 2022 10:16, sampling point TF080 Selenium 1045 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 31, 2022 10:16, sampling point TF080 Antimony, Total 1074 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 31, 2022 10:16, sampling point TF080 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 31, 2022 10:16, sampling point TF080 Thallium, Total 1085 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Collected
Aug 31, 2022 11:12
Sampling point
TF081 Treatment Plant T081
Sample type
Routine
Lab sample
IN-220901-005
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 31, 2022 11:12, sampling point TF081 Arsenic 1005 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.0306 mg/l , sample collected Aug 31, 2022 11:12, sampling point TF081 Barium 1010 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 31, 2022 11:12, sampling point TF081 Cadmium 1015 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 31, 2022 11:12, sampling point TF081 Chromium 1020 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.808 mg/l , sample collected Aug 31, 2022 11:12, sampling point TF081 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 31, 2022 11:12, sampling point TF081 Mercury 1035 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.0007 mg/l , sample collected Aug 31, 2022 11:12, sampling point TF081 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Aug 31, 2022 11:12, sampling point TF081 Selenium 1045 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 31, 2022 11:12, sampling point TF081 Antimony, Total 1074 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 31, 2022 11:12, sampling point TF081 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 31, 2022 11:12, sampling point TF081 Thallium, Total 1085 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Collected
Jun 21, 2022 13:37
Sampling point
TF081 Treatment Plant T081
Sample type
Routine
Lab sample
VO-220622-018
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 21, 2022 13:37, sampling point TF081 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 Jun 21, 2022 13:37, sampling point TF081 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 Jun 21, 2022 13:37, sampling point TF081 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 Jun 21, 2022 13:37, sampling point TF081 Dichloromethane 2964 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 21, 2022 13:37, sampling point TF081 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 Jun 21, 2022 13:37, sampling point TF081 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 Jun 21, 2022 13:37, sampling point TF081 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 Jun 21, 2022 13:37, sampling point TF081 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 Jun 21, 2022 13:37, sampling point TF081 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 Jun 21, 2022 13:37, sampling point TF081 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 Jun 21, 2022 13:37, sampling point TF081 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 Jun 21, 2022 13:37, sampling point TF081 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 Jun 21, 2022 13:37, sampling point TF081 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 Jun 21, 2022 13:37, sampling point TF081 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 21, 2022 13:37, sampling point TF081 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 Jun 21, 2022 13:37, sampling point TF081 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 21, 2022 13:37, sampling point TF081 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 21, 2022 13:37, sampling point TF081 Benzene 2990 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 21, 2022 13:37, sampling point TF081 Toluene 2991 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 21, 2022 13:37, sampling point TF081 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 21, 2022 13:37, sampling point TF081 Styrene 2996 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022

Routine (10).