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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

MS0090007 , City of Okolona

17 of the 57 analytes this system has been tested for have been detected at least once, across 467 samples on record.

The other 40 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 467 samples on record, detections range from November 17, 1993 to September 10, 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 City of Okolona, 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 211 of 244 results Nov 17, 1993 Sep 10, 2025
Lead 1030 Inorganic Chemical 148 of 244 results Nov 17, 1993 May 30, 2022
Barium 1010 Inorganic Chemical 33 of 33 results Jul 15, 2002 Jan 15, 2025
Fluoride 1025 Inorganic Chemical 30 of 33 results Jan 12, 2004 Jan 15, 2025
Chromium 1020 Inorganic Chemical 18 of 33 results Jul 15, 2002 Jan 15, 2025
Nickel 1036 Inorganic Chemical 15 of 33 results Jan 12, 2004 Jan 15, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 15 of 15 results Mar 6, 2012 Oct 3, 2012
Arsenic 1005 Inorganic Chemical 12 of 33 results Sep 26, 2018 Jan 15, 2025
Selenium 1045 Inorganic Chemical 11 of 33 results Jan 12, 2004 Mar 24, 2008
Sodium 1052 Inorganic Chemical 9 of 9 results Sep 18, 2019 Oct 15, 2024
Nitrite 1041 Inorganic Chemical 8 of 66 results Apr 9, 2007 Jan 10, 2022
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 6 of 24 results Jul 9, 2007 Mar 20, 2023
Cyanide 1024 Inorganic Chemical 3 of 33 results Apr 24, 2018 Apr 13, 2021
Cadmium 1015 Inorganic Chemical 3 of 33 results Feb 14, 2005 Feb 14, 2005
Monochloroacetic Acid 2450 Organic Chemical 1 of 17 results Jul 9, 2019 Jul 9, 2019
Monobromoacetic Acid 2453 Organic Chemical 1 of 17 results Jul 12, 2011 Jul 12, 2011
TTHM 2950 Organic Chemical 1 of 21 results Jul 9, 2007 Jul 9, 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 321–330 of 467 samples, newest first — collected July 17, 2007 to March 24, 2008. The summary above covers all 467.

28 results from the 10 samples listed here: 19 detected, 9 not detected. Across the whole record it is 525 of 1,803. 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 City of Okolona, every result from 321 to 330 of 467 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
Mar 24, 2008
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
080325-069IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 24, 2008, sampling point TF104 Arsenic 1005 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.048291 mg/l , sample collected Mar 24, 2008, sampling point TF104 Barium 1010 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Mar 24, 2008, sampling point TF104 Cadmium 1015 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 24, 2008, sampling point TF104 Chromium 1020 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.161 mg/l , sample collected Mar 24, 2008, sampling point TF104 Fluoride 1025 EPA method 380-75WE Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected Mar 24, 2008, sampling point TF104 Mercury 1035 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.005391 mg/l , sample collected Mar 24, 2008, sampling point TF104 Nickel 1036 EPA method 200.8 Not recorded
0.000648 mg/l , sample collected Mar 24, 2008, sampling point TF104 Selenium 1045 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 24, 2008, sampling point TF104 Antimony, Total 1074 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Mar 24, 2008, sampling point TF104 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 24, 2008, sampling point TF104 Thallium, Total 1085 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Collected
Sep 24, 2007
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
070925-002HA
Laboratory
MSDH Lab
Not detected below 0.006 mg/l Minimum Reporting Level , sample collected Sep 24, 2007, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2005 – Dec 31, 2007
Collected
Jul 17, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070718-360PB
Laboratory
MSDH Lab
0.0252 mg/l , sample collected Jul 17, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
0.0005 mg/l , sample collected Jul 17, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Collected
Jul 17, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070718-361PB
Laboratory
MSDH Lab
0.1563 mg/l , sample collected Jul 17, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
0.0033 mg/l , sample collected Jul 17, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Collected
Jul 17, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070718-368PB
Laboratory
MSDH Lab
0.0422 mg/l , sample collected Jul 17, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
0.0008 mg/l , sample collected Jul 17, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Collected
Jul 17, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070718-366PB
Laboratory
MSDH Lab
0.08 mg/l , sample collected Jul 17, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
0.0012 mg/l , sample collected Jul 17, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Collected
Jul 17, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070718-363PB
Laboratory
MSDH Lab
0.0844 mg/l , sample collected Jul 17, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
0.0454 mg/l , sample collected Jul 17, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Collected
Jul 17, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070718-362PB
Laboratory
MSDH Lab
0.0231 mg/l , sample collected Jul 17, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
0.0152 mg/l , sample collected Jul 17, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Collected
Jul 17, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070718-367PB
Laboratory
MSDH Lab
0.0565 mg/l , sample collected Jul 17, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 17, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Collected
Jul 17, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070718-364PB
Laboratory
MSDH Lab
0.0702 mg/l , sample collected Jul 17, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
0.0017 mg/l , sample collected Jul 17, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008

Routine (10).