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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

MS0570005 , City of Magnolia

22 of the 58 analytes this system has been tested for have been detected at least once, across 313 samples on record.

The other 36 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 313 samples on record, detections range from October 15, 2003 to July 21, 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 Magnolia, 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 99 of 99 results Aug 8, 2007 Sep 27, 2023
Lead 1030 Inorganic Chemical 58 of 99 results Aug 8, 2007 Sep 27, 2023
Barium 1010 Inorganic Chemical 34 of 34 results Oct 15, 2003 Jul 21, 2026
Fluoride 1025 Inorganic Chemical 29 of 34 results Oct 15, 2003 Jul 21, 2026
Arsenic 1005 Inorganic Chemical 22 of 34 results Oct 22, 2003 Jul 21, 2026
Nickel 1036 Inorganic Chemical 14 of 31 results Mar 17, 2004 Mar 18, 2025
Nitrate 1040 Inorganic Chemical 10 of 66 results Jun 7, 2004 Jul 21, 2026
Chromium 1020 Inorganic Chemical 10 of 34 results Oct 15, 2003 May 8, 2017
Gross Alpha, Incl. Radon & U 4002 Radionuclide 10 of 10 results Mar 12, 2012 Oct 9, 2012
Nitrate-Nitrite 1038 Inorganic Chemical 7 of 66 results Jun 7, 2004 Jul 21, 2026
TTHM 2950 Organic Chemical 6 of 19 results Oct 22, 2007 Jun 15, 2026
Sodium 1052 Inorganic Chemical 6 of 6 results Mar 7, 2022 Mar 3, 2025
Selenium 1045 Inorganic Chemical 6 of 34 results Apr 11, 2005 Mar 22, 2006
Chloroform 2941 Organic Chemical 4 of 14 results Aug 26, 2013 Jun 15, 2026
Sulfate 1055 Inorganic Chemical 4 of 6 results Oct 15, 2003 Mar 17, 2004
Dichloroacetic Acid 2451 Organic Chemical 3 of 14 results Aug 26, 2013 Jun 15, 2026
Bromodichloromethane 2943 Organic Chemical 3 of 14 results Aug 26, 2013 Jun 15, 2026
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 3 of 19 results Jun 29, 2010 Aug 9, 2016
Dichloromethane 2964 Organic Chemical 3 of 33 results Aug 23, 2004 Aug 24, 2004
Dibromochloromethane 2944 Organic Chemical 2 of 14 results Aug 26, 2013 Jun 15, 2026
Gross Alpha Particle Activity 4109 Radionuclide 2 of 2 results Dec 18, 2012 Jan 29, 2013
Cadmium 1015 Inorganic Chemical 2 of 34 results Apr 11, 2005 Apr 11, 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 1–10 of 313 samples, newest first — collected March 31, 2025 to July 21, 2026. The summary above covers all 313.

89 results from the 10 samples listed here: 19 detected, 70 not detected. Across the whole record it is 337 of 1,726. 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 Magnolia, every result from 1 to 10 of 313 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
Jul 21, 2026
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
35052623003
Laboratory
Pace Analytical Services, LLC
1.4 ug/l , sample collected Jul 21, 2026, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2026 – Dec 31, 2028
36.1 ug/l , sample collected Jul 21, 2026, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2026 – Dec 31, 2028
Not detected below 0.2 ug/l Minimum Reporting Level , sample collected Jul 21, 2026, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2026 – Dec 31, 2028
Not detected below 2 ug/l Minimum Reporting Level , sample collected Jul 21, 2026, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2026 – Dec 31, 2028
Not detected below 0.01 mg/l Minimum Reporting Level , sample collected Jul 21, 2026, sampling point TF101 Cyanide 1024 EPA method 335.4 Jan 1, 2024 – Dec 31, 2026
0.23 mg/l , sample collected Jul 21, 2026, sampling point TF101 Fluoride 1025 EPA method 300.0 Jan 1, 2026 – Dec 31, 2028
Not detected below 0.2 ug/l Minimum Reporting Level , sample collected Jul 21, 2026, sampling point TF101 Mercury 1035 EPA method 245.1 Jan 1, 2026 – Dec 31, 2028
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Jul 21, 2026, sampling point TF101 Nitrate-Nitrite 1038 Not recorded
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Jul 21, 2026, sampling point TF101 Nitrate 1040 EPA method 353.2 Not recorded
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Jul 21, 2026, sampling point TF101 Nitrite 1041 EPA method 353.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 21, 2026, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2026 – Dec 31, 2028
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 21, 2026, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2026 – Dec 31, 2028
Not detected below 0.1 ug/l Minimum Reporting Level , sample collected Jul 21, 2026, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2026 – Dec 31, 2028
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 21, 2026, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2026 – Dec 31, 2028
Collected
Jul 21, 2026
Sampling point
TF081 Treatment Plant T081
Sample type
Routine
Lab sample
35052623002
Laboratory
Pace Analytical Services, LLC
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 21, 2026, sampling point TF081 Arsenic 1005 EPA method 200.8 Jan 1, 2026 – Dec 31, 2028
39.6 ug/l , sample collected Jul 21, 2026, sampling point TF081 Barium 1010 EPA method 200.8 Jan 1, 2026 – Dec 31, 2028
Not detected below 0.2 ug/l Minimum Reporting Level , sample collected Jul 21, 2026, sampling point TF081 Cadmium 1015 EPA method 200.8 Jan 1, 2026 – Dec 31, 2028
Not detected below 2 ug/l Minimum Reporting Level , sample collected Jul 21, 2026, sampling point TF081 Chromium 1020 EPA method 200.8 Jan 1, 2026 – Dec 31, 2028
0.056 mg/l , sample collected Jul 21, 2026, sampling point TF081 Fluoride 1025 EPA method 300.0 Jan 1, 2026 – Dec 31, 2028
Not detected below 0.2 ug/l Minimum Reporting Level , sample collected Jul 21, 2026, sampling point TF081 Mercury 1035 EPA method 245.1 Jan 1, 2026 – Dec 31, 2028
0.057 mg/l , sample collected Jul 21, 2026, sampling point TF081 Nitrate-Nitrite 1038 Not recorded
0.057 mg/l , sample collected Jul 21, 2026, sampling point TF081 Nitrate 1040 EPA method 353.2 Not recorded
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Jul 21, 2026, sampling point TF081 Nitrite 1041 EPA method 353.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 21, 2026, sampling point TF081 Selenium 1045 EPA method 200.8 Jan 1, 2026 – Dec 31, 2028
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 21, 2026, sampling point TF081 Antimony, Total 1074 EPA method 200.8 Jan 1, 2026 – Dec 31, 2028
Not detected below 0.1 ug/l Minimum Reporting Level , sample collected Jul 21, 2026, sampling point TF081 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2026 – Dec 31, 2028
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 21, 2026, sampling point TF081 Thallium, Total 1085 EPA method 200.8 Jan 1, 2026 – Dec 31, 2028
Collected
Jul 21, 2026
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
35052623001
Laboratory
Pace Analytical Services, LLC
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 21, 2026, sampling point TF080 Arsenic 1005 EPA method 200.8 Jan 1, 2026 – Dec 31, 2028
37.3 ug/l , sample collected Jul 21, 2026, sampling point TF080 Barium 1010 EPA method 200.8 Jan 1, 2026 – Dec 31, 2028
Not detected below 0.2 ug/l Minimum Reporting Level , sample collected Jul 21, 2026, sampling point TF080 Cadmium 1015 EPA method 200.8 Jan 1, 2026 – Dec 31, 2028
Not detected below 2 ug/l Minimum Reporting Level , sample collected Jul 21, 2026, sampling point TF080 Chromium 1020 EPA method 200.8 Jan 1, 2026 – Dec 31, 2028
0.078 mg/l , sample collected Jul 21, 2026, sampling point TF080 Fluoride 1025 EPA method 300.0 Jan 1, 2026 – Dec 31, 2028
Not detected below 0.2 ug/l Minimum Reporting Level , sample collected Jul 21, 2026, sampling point TF080 Mercury 1035 EPA method 245.1 Jan 1, 2026 – Dec 31, 2028
0.06 mg/l , sample collected Jul 21, 2026, sampling point TF080 Nitrate-Nitrite 1038 Not recorded
0.06 mg/l , sample collected Jul 21, 2026, sampling point TF080 Nitrate 1040 EPA method 353.2 Not recorded
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Jul 21, 2026, sampling point TF080 Nitrite 1041 EPA method 353.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 21, 2026, sampling point TF080 Selenium 1045 EPA method 200.8 Jan 1, 2026 – Dec 31, 2028
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 21, 2026, sampling point TF080 Antimony, Total 1074 EPA method 200.8 Jan 1, 2026 – Dec 31, 2028
Not detected below 0.1 ug/l Minimum Reporting Level , sample collected Jul 21, 2026, sampling point TF080 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2026 – Dec 31, 2028
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 21, 2026, sampling point TF080 Thallium, Total 1085 EPA method 200.8 Jan 1, 2026 – Dec 31, 2028
Collected
Jun 15, 2026 11:07
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
810-196023-1
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Jun 15, 2026 11:07, sampling point SM1 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
1.2 ug/l , sample collected Jun 15, 2026 11:07, sampling point SM1 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 15, 2026 11:07, sampling point SM1 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 15, 2026 11:07, sampling point SM1 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 15, 2026 11:07, sampling point SM1 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected Jun 15, 2026 11:07, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2026 – Dec 31, 2026
3.3 ug/l , sample collected Jun 15, 2026 11:07, sampling point SM1 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 15, 2026 11:07, sampling point SM1 Bromoform 2942 EPA method 524.2 Not recorded
1.6 ug/l , sample collected Jun 15, 2026 11:07, sampling point SM1 Bromodichloromethane 2943 EPA method 524.2 Not recorded
1.2 ug/l , sample collected Jun 15, 2026 11:07, sampling point SM1 Dibromochloromethane 2944 EPA method 524.2 Not recorded
6.1 ug/l , sample collected Jun 15, 2026 11:07, sampling point SM1 TTHM 2950 EPA method 524.2 Jan 1, 2026 – Dec 31, 2026
Collected
Nov 4, 2025 09:25
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
810-170649-1
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Nov 4, 2025 09:25, sampling point SM1 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 4, 2025 09:25, sampling point SM1 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 4, 2025 09:25, sampling point SM1 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 4, 2025 09:25, sampling point SM1 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 4, 2025 09:25, sampling point SM1 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected Nov 4, 2025 09:25, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 4, 2025 09:25, sampling point SM1 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 4, 2025 09:25, sampling point SM1 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 4, 2025 09:25, sampling point SM1 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 4, 2025 09:25, sampling point SM1 Dibromochloromethane 2944 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 4, 2025 09:25, sampling point SM1 TTHM 2950 EPA method 524.2 Not recorded
Collected
Sep 30, 2025 12:08
Sampling point
TF081 Treatment Plant T081
Sample type
Routine
Lab sample
CN-251001-023
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Sep 30, 2025 12:08, sampling point TF081 Cyanide 1024 EPA method QC10204001X Jan 1, 2023 – Dec 31, 2025
Collected
Sep 30, 2025 12:35
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
CN-251001-022
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Sep 30, 2025 12:35, sampling point TF080 Cyanide 1024 EPA method QC10204001X Jan 1, 2023 – Dec 31, 2025
Collected
May 19, 2025 08:15
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
810-149277-2
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected May 19, 2025 08:15, sampling point SM2 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 19, 2025 08:15, sampling point SM2 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 19, 2025 08:15, sampling point SM2 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 19, 2025 08:15, sampling point SM2 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 19, 2025 08:15, sampling point SM2 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected May 19, 2025 08:15, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Apr 1, 2025 – Jun 30, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 19, 2025 08:15, sampling point SM2 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 19, 2025 08:15, sampling point SM2 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 19, 2025 08:15, sampling point SM2 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 19, 2025 08:15, sampling point SM2 Dibromochloromethane 2944 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 19, 2025 08:15, sampling point SM2 TTHM 2950 EPA method 524.2 Apr 1, 2025 – Jun 30, 2025
Collected
May 19, 2025 07:53
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
810-149277-1
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected May 19, 2025 07:53, sampling point SM1 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 19, 2025 07:53, sampling point SM1 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 19, 2025 07:53, sampling point SM1 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 19, 2025 07:53, sampling point SM1 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 19, 2025 07:53, sampling point SM1 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected May 19, 2025 07:53, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Apr 1, 2025 – Jun 30, 2025
0.62 ug/l , sample collected May 19, 2025 07:53, sampling point SM1 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 19, 2025 07:53, sampling point SM1 Bromoform 2942 EPA method 524.2 Not recorded
0.5 ug/l , sample collected May 19, 2025 07:53, sampling point SM1 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 19, 2025 07:53, sampling point SM1 Dibromochloromethane 2944 EPA method 524.2 Not recorded
1.12 ug/l , sample collected May 19, 2025 07:53, sampling point SM1 TTHM 2950 EPA method 524.2 Apr 1, 2025 – Jun 30, 2025
Collected
Mar 31, 2025 14:45
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
NI-250401-014
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 31, 2025 14:45, 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 Mar 31, 2025 14:45, 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 Mar 31, 2025 14:45, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025

Routine (10).