Skip to main content
Alpha

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

MS0640022 , Okatoma Water Association #2

39 of the 72 analytes this system has been tested for have been detected at least once, across 643 samples on record.

The other 33 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 643 samples on record, detections range from April 16, 2002 to July 22, 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 Okatoma Water Association #2, 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 164 of 166 results Jun 10, 2004 Aug 20, 2025
Barium 1010 Inorganic Chemical 69 of 69 results Apr 16, 2002 Jun 25, 2026
Xylenes, Total 2955 Organic Chemical 49 of 143 results Sep 15, 2010 Jul 19, 2021
Fluoride 1025 Inorganic Chemical 47 of 70 results Apr 16, 2002 Apr 7, 2025
Nitrate-Nitrite 1038 Inorganic Chemical 44 of 108 results Jun 14, 2004 Jul 22, 2026
Nitrate 1040 Inorganic Chemical 44 of 108 results Jun 14, 2004 Jul 22, 2026
Lead 1030 Inorganic Chemical 30 of 166 results Jun 10, 2004 Aug 20, 2025
Nickel 1036 Inorganic Chemical 21 of 68 results Nov 24, 2003 Apr 7, 2025
Chromium 1020 Inorganic Chemical 19 of 69 results Apr 16, 2002 Apr 7, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 16 of 17 results Dec 14, 2011 Jan 16, 2018
Ethylbenzene 2992 Organic Chemical 12 of 143 results Aug 29, 2011 Feb 23, 2016
Sodium 1052 Inorganic Chemical 11 of 11 results Apr 27, 2010 Jul 22, 2026
TTHM 2950 Organic Chemical 7 of 17 results Oct 1, 2007 Sep 16, 2025
Selenium 1045 Inorganic Chemical 7 of 69 results Mar 2, 2005 Feb 8, 2010
Bromodichloromethane 2943 Organic Chemical 6 of 13 results Oct 1, 2007 Sep 16, 2025
Dibromochloromethane 2944 Organic Chemical 6 of 13 results Oct 1, 2007 Nov 18, 2024
Cadmium 1015 Inorganic Chemical 5 of 69 results Mar 31, 2004 Jan 23, 2006
Chloroform 2941 Organic Chemical 4 of 13 results Oct 1, 2007 Sep 16, 2025
Sulfate 1055 Inorganic Chemical 4 of 10 results Apr 16, 2002 Apr 27, 2010
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 3 of 17 results Jul 6, 2010 Jul 8, 2024
Carbon Tetrachloride 2982 Organic Chemical 2 of 143 results Aug 26, 2020 Aug 26, 2020
Radium-226 4020 Radionuclide 2 of 23 results Dec 12, 2012 Jan 16, 2018
Gross Alpha Particle Activity 4109 Radionuclide 2 of 6 results Sep 26, 2012 Dec 12, 2012
Nitrite 1041 Inorganic Chemical 1 of 108 results Apr 19, 2021 Apr 19, 2021
Combined Radium (-226 & -228) 4010 Radionuclide 1 of 23 results Dec 12, 2012 Dec 12, 2012
Toluene 2991 Organic Chemical 1 of 143 results Jan 18, 2012 Jan 18, 2012
Calcium 1016 Inorganic Chemical 1 of 1 result Apr 27, 2010 Apr 27, 2010
Chloride 1017 Inorganic Chemical 1 of 1 result Apr 27, 2010 Apr 27, 2010
Magnesium 1031 Inorganic Chemical 1 of 1 result Apr 27, 2010 Apr 27, 2010
Manganese 1032 Inorganic Chemical 1 of 1 result Apr 27, 2010 Apr 27, 2010
Potassium 1042 Inorganic Chemical 1 of 1 result Apr 27, 2010 Apr 27, 2010
Residue, Total, Filterable 1057 Water Quality 1 of 1 result Apr 27, 2010 Apr 27, 2010
Alkalinity, Caco3 Stability 1067 Water Quality 1 of 1 result Apr 27, 2010 Apr 27, 2010
Carbon Dioxide 1901 Water Quality 1 of 1 result Apr 27, 2010 Apr 27, 2010
Hardness, Total (As Caco3) 1915 Water Quality 1 of 1 result Apr 27, 2010 Apr 27, 2010
Alkalinity, Total 1927 Water Quality 1 of 1 result Apr 27, 2010 Apr 27, 2010
Iron, Field Result FEFD Inorganic Chemical 1 of 1 result Apr 27, 2010 Apr 27, 2010
Calculated Sodium NACA Water Quality 1 of 1 result Apr 27, 2010 Apr 27, 2010
PH, Field Result PHFD Water Quality 1 of 1 result Apr 27, 2010 Apr 27, 2010

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 71–80 of 643 samples, newest first — collected March 13, 2023 to October 23, 2023. The summary above covers all 643.

38 results from the 10 samples listed here: 9 detected, 29 not detected. Across the whole record it is 590 of 4,799. 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 Okatoma Water Association #2, every result from 71 to 80 of 643 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 23, 2023 12:18
Sampling point
TF107
Sample type
Routine
Lab sample
CN-231024-025
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Oct 23, 2023 12:18, sampling point TF107 Cyanide 1024 EPA method QC10204001X Jan 1, 2023 – Dec 31, 2023
Collected
Oct 23, 2023 12:15
Sampling point
TF108 Treatment Plant T108
Sample type
Routine
Lab sample
CN-231024-024
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Oct 23, 2023 12:15, sampling point TF108 Cyanide 1024 EPA method QC10204001X Jan 1, 2023 – Dec 31, 2023
Collected
Aug 22, 2023 13:05
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
HA-230823-004
Laboratory
MSDH Lab
1.21 ug/l , sample collected Aug 22, 2023 13:05, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2023 – Dec 31, 2023
Collected
Aug 22, 2023 13:00
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
TH-230823-004
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 22, 2023 13:00, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Collected
Jul 10, 2023 14:35
Sampling point
TF108 Treatment Plant T108
Sample type
Routine
Lab sample
IN-230711-008
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 10, 2023 14:35, sampling point TF108 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Dec 31, 2023
0.0141 mg/l , sample collected Jul 10, 2023 14:35, sampling point TF108 Barium 1010 EPA method 200.8 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 10, 2023 14:35, sampling point TF108 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Dec 31, 2023
0.0013 mg/l , sample collected Jul 10, 2023 14:35, sampling point TF108 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Dec 31, 2023
0.281 mg/l , sample collected Jul 10, 2023 14:35, sampling point TF108 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Dec 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 10, 2023 14:35, sampling point TF108 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 10, 2023 14:35, sampling point TF108 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Jul 10, 2023 14:35, sampling point TF108 Selenium 1045 EPA method 200.8 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 10, 2023 14:35, sampling point TF108 Antimony, Total 1074 EPA method 200.8 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 10, 2023 14:35, sampling point TF108 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 10, 2023 14:35, sampling point TF108 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Dec 31, 2023
Collected
Jul 10, 2023 14:30
Sampling point
TF107
Sample type
Routine
Lab sample
IN-230711-007
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 10, 2023 14:30, sampling point TF107 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Dec 31, 2023
0.0143 mg/l , sample collected Jul 10, 2023 14:30, sampling point TF107 Barium 1010 EPA method 200.8 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 10, 2023 14:30, sampling point TF107 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Dec 31, 2023
0.0008 mg/l , sample collected Jul 10, 2023 14:30, sampling point TF107 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Dec 31, 2023
0.291 mg/l , sample collected Jul 10, 2023 14:30, sampling point TF107 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Dec 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 10, 2023 14:30, sampling point TF107 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 10, 2023 14:30, sampling point TF107 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Jul 10, 2023 14:30, sampling point TF107 Selenium 1045 EPA method 200.8 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 10, 2023 14:30, sampling point TF107 Antimony, Total 1074 EPA method 200.8 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 10, 2023 14:30, sampling point TF107 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 10, 2023 14:30, sampling point TF107 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Dec 31, 2023
Collected
Mar 13, 2023 14:46
Sampling point
TF108 Treatment Plant T108
Sample type
Routine
Lab sample
NI-230314-009
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 13, 2023 14:46, sampling point TF108 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 13, 2023 14:46, sampling point TF108 Nitrate 1040 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 13, 2023 14:46, sampling point TF108 Nitrite 1041 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Collected
Mar 13, 2023 14:44
Sampling point
TF107
Sample type
Routine
Lab sample
NI-230314-008
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 13, 2023 14:44, sampling point TF107 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 13, 2023 14:44, sampling point TF107 Nitrate 1040 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 13, 2023 14:44, sampling point TF107 Nitrite 1041 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Collected
Mar 13, 2023 13:35
Sampling point
TF082 Treatment Plant T082
Sample type
Routine
Lab sample
NI-230314-007
Laboratory
MSDH Lab
0.675 mg/l , sample collected Mar 13, 2023 13:35, sampling point TF082 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
0.675 mg/l , sample collected Mar 13, 2023 13:35, sampling point TF082 Nitrate 1040 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 13, 2023 13:35, sampling point TF082 Nitrite 1041 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Collected
Mar 13, 2023 14:09
Sampling point
TF081 Treatment Plant T081
Sample type
Routine
Lab sample
NI-230314-006
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 13, 2023 14:09, sampling point TF081 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 13, 2023 14:09, sampling point TF081 Nitrate 1040 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 13, 2023 14:09, sampling point TF081 Nitrite 1041 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023

Routine (10).