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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 331–340 of 469 samples, newest first — collected May 13, 2009 to August 18, 2010. The summary above covers all 469.

42 results from the 10 samples listed here: 17 detected, 25 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.

Units in this table

Gross Alpha Particle Activity is recorded on this page in ug/l and pci/l.

Radium-226 is recorded on this page in ug/l and pci/l.

Radium-228 is recorded on this page in ug/l and pci/l.

Chemical and radiological sample results for City of Meridian, every result from 331 to 340 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
Aug 18, 2010
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
100819-004HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Aug 18, 2010, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.002 mg/l , sample collected Aug 18, 2010, 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 18, 2010, 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 18, 2010, 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 18, 2010, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0 mg/l This result is recorded as a detection, and the figure the agency wrote — "0.00" — is zero to the precision it was written to. Read the zero as "smaller than the written figure resolves", not as "none present". SDWIS holds a separate numeric concentration that Drinking Water Watch does not publish, so this endpoint does not carry it either; no more precise magnitude is available here. , sample collected Aug 18, 2010, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2010 – Dec 31, 2010
Collected
Aug 9, 2010
Sampling point
TF081 Treatment Plant T081
Sample type
Routine
Lab sample
100810-108NI
Laboratory
MSDH Lab
Not detected below 0.25 mg/l Minimum Reporting Level , sample collected Aug 9, 2010, sampling point TF081 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2010 – Dec 31, 2010
Not detected below 0.2 mg/l Minimum Reporting Level , sample collected Aug 9, 2010, sampling point TF081 Nitrate 1040 EPA method 353.2 Jan 1, 2010 – Dec 31, 2010
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Aug 9, 2010, sampling point TF081 Nitrite 1041 EPA method 353.2 Jan 1, 2010 – Dec 31, 2010
Collected
Aug 9, 2010
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
100810-105NI
Laboratory
MSDH Lab
Not detected below 0.25 mg/l Minimum Reporting Level , sample collected Aug 9, 2010, sampling point TF080 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2010 – Dec 31, 2010
Not detected below 0.2 mg/l Minimum Reporting Level , sample collected Aug 9, 2010, sampling point TF080 Nitrate 1040 EPA method 353.2 Jan 1, 2010 – Dec 31, 2010
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Aug 9, 2010, sampling point TF080 Nitrite 1041 EPA method 353.2 Jan 1, 2010 – Dec 31, 2010
Collected
Oct 29, 2009
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
02703-001
Laboratory
Laboratory, Ars
0.598 pci/l The agency recorded which kind of limit this result was below, but stored nothing as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Oct 29, 2009, sampling point TF080 Gross Alpha, Excl. Radon & U 4000 Oct 1, 2009 – Dec 31, 2009
Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 29, 2009, sampling point TF080 Combined Uranium 4006 EPA method 200.8 Oct 1, 2009 – Dec 31, 2009
Not detected below 1 pci/l Minimum Reporting Level , sample collected Oct 29, 2009, sampling point TF080 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 1 pci/l Minimum Reporting Level , sample collected Oct 29, 2009, sampling point TF080 Radium-226 4020 EPA method 903 Oct 1, 2009 – Dec 31, 2009
Not detected below 1 pci/l Minimum Reporting Level , sample collected Oct 29, 2009, sampling point TF080 Radium-228 4030 EPA method 904 Oct 1, 2009 – Dec 31, 2009
3.496 pci/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Oct 29, 2009, sampling point TF080 Gross Beta Particle Activity 4100 EPA method 900 Not recorded
0.598 pci/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Oct 29, 2009, sampling point TF080 Gross Alpha Particle Activity 4109 EPA method 900 Oct 1, 2009 – Dec 31, 2009
Collected
Sep 28, 2009
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
090929-043CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Sep 28, 2009, sampling point TF080 Cyanide 1024 EPA method QC10204001X Jan 1, 2008 – Dec 31, 2010
Collected
Sep 28, 2009
Sampling point
TF081 Treatment Plant T081
Sample type
Routine
Lab sample
090929-042CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Sep 28, 2009, sampling point TF081 Cyanide 1024 EPA method QC10204001X Jan 1, 2008 – Dec 31, 2010
Collected
Aug 24, 2009
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
090825-003TH
Laboratory
MSDH Lab
9.91 ug/l , sample collected Aug 24, 2009, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 24, 2009, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
4.61 ug/l , sample collected Aug 24, 2009, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
3.02 ug/l , sample collected Aug 24, 2009, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
17.54 ug/l , sample collected Aug 24, 2009, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Collected
Aug 24, 2009
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
090825-003HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Aug 24, 2009, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.003 mg/l , sample collected Aug 24, 2009, 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 24, 2009, 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 24, 2009, 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 24, 2009, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0 mg/l This result is recorded as a detection, and the figure the agency wrote — "0.00" — is zero to the precision it was written to. Read the zero as "smaller than the written figure resolves", not as "none present". SDWIS holds a separate numeric concentration that Drinking Water Watch does not publish, so this endpoint does not carry it either; no more precise magnitude is available here. , sample collected Aug 24, 2009, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2009 – Dec 31, 2009
Collected
Jun 24, 2009
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
01687-001
Laboratory
Laboratory, Ars
0.049 pci/l The agency recorded which kind of limit this result was below, but stored nothing as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 24, 2009, sampling point TF080 Gross Alpha, Excl. Radon & U 4000 Apr 1, 2009 – Jun 30, 2009
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 24, 2009, sampling point TF080 Combined Uranium 4006 EPA method 200.8 Apr 1, 2009 – Jun 30, 2009
0.336 pci/l The agency recorded which kind of limit this result was below, but stored nothing as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 24, 2009, sampling point TF080 Combined Radium (-226 & -228) 4010 Not recorded
0.076 pci/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 24, 2009, sampling point TF080 Radium-226 4020 EPA method 903 Apr 1, 2009 – Jun 30, 2009
0.26 pci/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 24, 2009, sampling point TF080 Radium-228 4030 EPA method 904 Apr 1, 2009 – Jun 30, 2009
3.399 pci/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 24, 2009, sampling point TF080 Gross Beta Particle Activity 4100 EPA method 900 Not recorded
0.049 pci/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 24, 2009, sampling point TF080 Gross Alpha Particle Activity 4109 EPA method 900 Apr 1, 2009 – Jun 30, 2009
Collected
May 13, 2009
Sampling point
TF081 Treatment Plant T081
Sample type
Routine
Lab sample
090514-024NI
Laboratory
MSDH Lab
Not detected below 0.25 mg/l Minimum Reporting Level , sample collected May 13, 2009, sampling point TF081 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.2 mg/l Minimum Reporting Level , sample collected May 13, 2009, sampling point TF081 Nitrate 1040 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected May 13, 2009, sampling point TF081 Nitrite 1041 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009

Routine (10).