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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 231–240 of 467 samples, newest first — collected October 19, 2010 to October 19, 2010. The summary above covers all 467.

20 results from the 10 samples listed here: 17 detected, 3 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 231 to 240 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
Oct 19, 2010
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
101020-047PB
Laboratory
MSDH Lab
0.0468 mg/l , sample collected Oct 19, 2010, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
0.0019 mg/l , sample collected Oct 19, 2010, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Collected
Oct 19, 2010
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
101020-046PB
Laboratory
MSDH Lab
0.0497 mg/l , sample collected Oct 19, 2010, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
0.0021 mg/l , sample collected Oct 19, 2010, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Collected
Oct 19, 2010
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
101020-045PB
Laboratory
MSDH Lab
0.0437 mg/l , sample collected Oct 19, 2010, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
0.0021 mg/l , sample collected Oct 19, 2010, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Collected
Oct 19, 2010
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
101020-044PB
Laboratory
MSDH Lab
0.0442 mg/l , sample collected Oct 19, 2010, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
0.002 mg/l , sample collected Oct 19, 2010, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Collected
Oct 19, 2010
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
101020-060PB
Laboratory
MSDH Lab
0.0024 mg/l , sample collected Oct 19, 2010, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
0.0007 mg/l , sample collected Oct 19, 2010, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Collected
Oct 19, 2010
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
101020-059PB
Laboratory
MSDH Lab
0.0028 mg/l , sample collected Oct 19, 2010, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 19, 2010, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Collected
Oct 19, 2010
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
101020-057PB
Laboratory
MSDH Lab
0.0028 mg/l , sample collected Oct 19, 2010, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
0.0008 mg/l , sample collected Oct 19, 2010, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Collected
Oct 19, 2010
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
101020-054PB
Laboratory
MSDH Lab
0.0061 mg/l , sample collected Oct 19, 2010, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 19, 2010, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Collected
Oct 19, 2010
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
101020-052PB
Laboratory
MSDH Lab
0.0086 mg/l , sample collected Oct 19, 2010, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 19, 2010, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Collected
Oct 19, 2010
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
101020-048PB
Laboratory
MSDH Lab
0.055 mg/l , sample collected Oct 19, 2010, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
0.0026 mg/l , sample collected Oct 19, 2010, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010

Routine (10).