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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 201–210 of 467 samples, newest first — collected June 1, 2011 to July 12, 2011. The summary above covers all 467.

24 results from the 10 samples listed here: 7 detected, 17 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 201 to 210 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
Jul 12, 2011 11:48
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
110713-009TH
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 12, 2011 11:48, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 12, 2011 11:48, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 12, 2011 11:48, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 12, 2011 11:48, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
Not detected below 4 ug/l Minimum Reporting Level , sample collected Jul 12, 2011 11:48, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2011 – Dec 31, 2013
Collected
Jul 12, 2011 01:15
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
110713-009HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Jul 12, 2011 01:15, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 12, 2011 01:15, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 12, 2011 01:15, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
0.005 mg/l , sample collected Jul 12, 2011 01:15, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 12, 2011 01:15, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.005 mg/l , sample collected Jul 12, 2011 01:15, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2011 – Dec 31, 2013
Collected
Jun 20, 2011
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
110621-005CN
Laboratory
MSDH Lab
Not detected below 15 ug/l Minimum Reporting Level , sample collected Jun 20, 2011, sampling point TF102 Cyanide 1024 EPA method QC10204001X Jan 1, 2011 – Dec 31, 2013
Collected
Jun 20, 2011
Sampling point
TF105 Treatment Plant T105
Sample type
Routine
Lab sample
110621-004CN
Laboratory
MSDH Lab
Not detected below 15 ug/l Minimum Reporting Level , sample collected Jun 20, 2011, sampling point TF105 Cyanide 1024 EPA method QC10204001X Jan 1, 2011 – Dec 31, 2013
Collected
Jun 20, 2011
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
110621-003CN
Laboratory
MSDH Lab
Not detected below 15 ug/l Minimum Reporting Level , sample collected Jun 20, 2011, sampling point TF104 Cyanide 1024 EPA method QC10204001X Jan 1, 2011 – Dec 31, 2013
Collected
Jun 1, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110603-102PB
Laboratory
MSDH Lab
0.0021 mg/l , sample collected Jun 1, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2011 – Dec 31, 2011
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 1, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2011 – Dec 31, 2011
Collected
Jun 1, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110603-101PB
Laboratory
MSDH Lab
0.0033 mg/l , sample collected Jun 1, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2011 – Dec 31, 2011
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 1, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2011 – Dec 31, 2011
Collected
Jun 1, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110603-100PB
Laboratory
MSDH Lab
0.0023 mg/l , sample collected Jun 1, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2011 – Dec 31, 2011
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 1, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2011 – Dec 31, 2011
Collected
Jun 1, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110603-099PB
Laboratory
MSDH Lab
0.0024 mg/l , sample collected Jun 1, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2011 – Dec 31, 2011
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 1, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2011 – Dec 31, 2011
Collected
Jun 1, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110603-098PB
Laboratory
MSDH Lab
0.0024 mg/l , sample collected Jun 1, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2011 – Dec 31, 2011
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 1, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2011 – Dec 31, 2011

Routine (10).