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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 471 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 471 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 69 results Apr 9, 2007 Jan 10, 2022
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 6 of 25 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 18 results Jul 9, 2019 Jul 9, 2019
Monobromoacetic Acid 2453 Organic Chemical 1 of 18 results Jul 12, 2011 Jul 12, 2011
TTHM 2950 Organic Chemical 1 of 22 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 451–460 of 471 samples, newest first — collected November 17, 1993 to May 31, 1994. The summary above covers all 471.

20 results from the 10 samples listed here: 10 detected, 10 not detected. Across the whole record it is 525 of 1,823. 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 451 to 460 of 471 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
May 31, 1994
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
940601-102L
Laboratory
MSDH Lab
Not detected below 0.02 mg/l Method Detection Limit , sample collected May 31, 1994, sampling point DS000 Copper, Free 1022 Not recorded
Not detected below 0.001 mg/l Method Detection Limit , sample collected May 31, 1994, sampling point DS000 Lead 1030 Not recorded
Collected
Nov 17, 1993
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
931118-118L
Laboratory
MSDH Lab
0.188 mg/l , sample collected Nov 17, 1993, sampling point DS000 Copper, Free 1022 Not recorded
Not detected below 0.001 mg/l Method Detection Limit , sample collected Nov 17, 1993, sampling point DS000 Lead 1030 Not recorded
Collected
Nov 17, 1993
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
931118-117L
Laboratory
MSDH Lab
Not detected below 0.02 mg/l Method Detection Limit , sample collected Nov 17, 1993, sampling point DS000 Copper, Free 1022 Not recorded
Not detected below 0.001 mg/l Method Detection Limit , sample collected Nov 17, 1993, sampling point DS000 Lead 1030 Not recorded
Collected
Nov 17, 1993
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
931118-116L
Laboratory
MSDH Lab
0.073 mg/l , sample collected Nov 17, 1993, sampling point DS000 Copper, Free 1022 Not recorded
Not detected below 0.001 mg/l Method Detection Limit , sample collected Nov 17, 1993, sampling point DS000 Lead 1030 Not recorded
Collected
Nov 17, 1993
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
931118-115L
Laboratory
MSDH Lab
Not detected below 0.02 mg/l Method Detection Limit , sample collected Nov 17, 1993, sampling point DS000 Copper, Free 1022 Not recorded
Not detected below 0.001 mg/l Method Detection Limit , sample collected Nov 17, 1993, sampling point DS000 Lead 1030 Not recorded
Collected
Nov 17, 1993
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
931118-114L
Laboratory
MSDH Lab
0.167 mg/l , sample collected Nov 17, 1993, sampling point DS000 Copper, Free 1022 Not recorded
0.003 mg/l , sample collected Nov 17, 1993, sampling point DS000 Lead 1030 Not recorded
Collected
Nov 17, 1993
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
931118-113L
Laboratory
MSDH Lab
Not detected below 0.02 mg/l Method Detection Limit , sample collected Nov 17, 1993, sampling point DS000 Copper, Free 1022 Not recorded
Not detected below 0.001 mg/l Method Detection Limit , sample collected Nov 17, 1993, sampling point DS000 Lead 1030 Not recorded
Collected
Nov 17, 1993
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
931118-112L
Laboratory
MSDH Lab
0.154 mg/l , sample collected Nov 17, 1993, sampling point DS000 Copper, Free 1022 Not recorded
0.002 mg/l , sample collected Nov 17, 1993, sampling point DS000 Lead 1030 Not recorded
Collected
Nov 17, 1993
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
931118-111L
Laboratory
MSDH Lab
0.237 mg/l , sample collected Nov 17, 1993, sampling point DS000 Copper, Free 1022 Not recorded
0.569 mg/l , sample collected Nov 17, 1993, sampling point DS000 Lead 1030 Not recorded
Collected
Nov 17, 1993
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
931118-110L
Laboratory
MSDH Lab
0.142 mg/l , sample collected Nov 17, 1993, sampling point DS000 Copper, Free 1022 Not recorded
0.002 mg/l , sample collected Nov 17, 1993, sampling point DS000 Lead 1030 Not recorded

Routine (10).