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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

MS0640009 , Okatoma Water Association #1

27 of the 98 analytes this system has been tested for have been detected at least once, across 439 samples on record.

The other 71 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 439 samples on record, detections range from October 22, 2003 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 #1, 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
Nitrate-Nitrite 1038 Inorganic Chemical 124 of 138 results Jun 14, 2004 Jul 22, 2026
Nitrate 1040 Inorganic Chemical 124 of 138 results Jun 14, 2004 Jul 22, 2026
Copper, Free 1022 Inorganic Chemical 107 of 107 results Sep 6, 2007 Jul 8, 2025
Lead 1030 Inorganic Chemical 40 of 107 results Sep 6, 2007 Jul 8, 2025
Barium 1010 Inorganic Chemical 25 of 25 results Oct 22, 2003 Apr 7, 2025
TTHM 2950 Organic Chemical 18 of 20 results Aug 16, 2004 Jun 4, 2025
Nickel 1036 Inorganic Chemical 17 of 25 results Mar 22, 2004 Apr 7, 2025
Combined Radium (-226 & -228) 4010 Radionuclide 14 of 14 results Mar 14, 2012 Oct 8, 2019
Radium-226 4020 Radionuclide 14 of 14 results Mar 14, 2012 Oct 8, 2019
Radium-228 4030 Radionuclide 14 of 14 results Mar 14, 2012 Oct 8, 2019
Bromodichloromethane 2943 Organic Chemical 13 of 14 results Sep 10, 2007 Jun 4, 2025
Dibromochloromethane 2944 Organic Chemical 12 of 14 results Sep 10, 2007 Jun 4, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 11 of 14 results Mar 14, 2012 Oct 15, 2018
Fluoride 1025 Inorganic Chemical 9 of 25 results Apr 10, 2006 Apr 7, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 8 of 20 results Jul 6, 2010 Apr 7, 2025
Chloroform 2941 Organic Chemical 7 of 14 results Sep 10, 2007 Jun 4, 2025
Bromoform 2942 Organic Chemical 6 of 14 results Jul 6, 2010 Jun 4, 2025
Sodium 1052 Inorganic Chemical 5 of 5 results Sep 17, 2019 Jul 22, 2026
Dibromoacetic Acid 2454 Organic Chemical 3 of 13 results Sep 4, 2013 Jun 4, 2025
Chromium 1020 Inorganic Chemical 3 of 25 results Oct 22, 2003 Apr 7, 2025
Arsenic 1005 Inorganic Chemical 2 of 25 results Feb 8, 2010 Feb 12, 2024
Xylenes, Total 2955 Organic Chemical 1 of 29 results Nov 29, 2022 Nov 29, 2022
Monobromoacetic Acid 2453 Organic Chemical 1 of 13 results Oct 12, 2020 Oct 12, 2020
Monochloroacetic Acid 2450 Organic Chemical 1 of 13 results Dec 6, 2016 Dec 6, 2016
Selenium 1045 Inorganic Chemical 1 of 25 results Feb 8, 2010 Feb 8, 2010
Cadmium 1015 Inorganic Chemical 1 of 25 results Nov 3, 2008 Nov 3, 2008
Cyanide 1024 Inorganic Chemical 1 of 27 results Apr 10, 2006 Apr 10, 2006

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 251–260 of 439 samples, newest first — collected October 7, 2013 to November 4, 2013. The summary above covers all 439.

54 results from the 10 samples listed here: 4 detected, 50 not detected. Across the whole record it is 582 of 1,978. 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 #1, every result from 251 to 260 of 439 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
Nov 4, 2013 01:46
Sampling point
TF081 Treatment Plant 081
Sample type
Routine
Lab sample
131105-009S1
Laboratory
MSDH Lab
Not detected below 0.02 ug/l Minimum Reporting Level , sample collected Nov 4, 2013 01:46, sampling point TF081 1,2-Dibromo-3-Chloropropane 2931 EPA method 504.1 Not recorded
Not detected below 0.02 ug/l Minimum Reporting Level , sample collected Nov 4, 2013 01:46, sampling point TF081 Ethylene Dibromide 2946 EPA method 504.1 Not recorded
Collected
Nov 4, 2013 01:44
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
131105-008S1
Laboratory
MSDH Lab
Not detected below 0.02 ug/l Minimum Reporting Level , sample collected Nov 4, 2013 01:44, sampling point TF080 1,2-Dibromo-3-Chloropropane 2931 EPA method 504.1 Not recorded
Not detected below 0.02 ug/l Minimum Reporting Level , sample collected Nov 4, 2013 01:44, sampling point TF080 Ethylene Dibromide 2946 EPA method 504.1 Not recorded
Collected
Oct 28, 2013 02:57
Sampling point
TF081 Treatment Plant 081
Sample type
Routine
Lab sample
131029-011S7
Laboratory
MSDH Lab
Not detected below 0.25 ug/l Minimum Reporting Level , sample collected Oct 28, 2013 02:57, sampling point TF081 Oxamyl 2036 EPA method 531.1 Not recorded
Not detected below 0.25 ug/l Minimum Reporting Level , sample collected Oct 28, 2013 02:57, sampling point TF081 Aldicarb Sulfoxide 2043 EPA method 531.1 Not recorded
Not detected below 0.25 ug/l Minimum Reporting Level , sample collected Oct 28, 2013 02:57, sampling point TF081 Aldicarb Sulfone 2044 EPA method 531.1 Not recorded
Not detected below 0.25 ug/l Minimum Reporting Level , sample collected Oct 28, 2013 02:57, sampling point TF081 Carbofuran 2046 EPA method 531.1 Not recorded
Not detected below 0.25 ug/l Minimum Reporting Level , sample collected Oct 28, 2013 02:57, sampling point TF081 Aldicarb 2047 EPA method 531.1 Not recorded
Collected
Oct 28, 2013 02:55
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
131029-010S7
Laboratory
MSDH Lab
Not detected below 0.25 ug/l Minimum Reporting Level , sample collected Oct 28, 2013 02:55, sampling point TF080 Oxamyl 2036 EPA method 531.1 Not recorded
Not detected below 0.25 ug/l Minimum Reporting Level , sample collected Oct 28, 2013 02:55, sampling point TF080 Aldicarb Sulfoxide 2043 EPA method 531.1 Not recorded
Not detected below 0.25 ug/l Minimum Reporting Level , sample collected Oct 28, 2013 02:55, sampling point TF080 Aldicarb Sulfone 2044 EPA method 531.1 Not recorded
Not detected below 0.25 ug/l Minimum Reporting Level , sample collected Oct 28, 2013 02:55, sampling point TF080 Carbofuran 2046 EPA method 531.1 Not recorded
Not detected below 0.25 ug/l Minimum Reporting Level , sample collected Oct 28, 2013 02:55, sampling point TF080 Aldicarb 2047 EPA method 531.1 Not recorded
Collected
Oct 14, 2013 12:47
Sampling point
TF081 Treatment Plant 081
Sample type
Routine
Lab sample
131015-015SC
Laboratory
MSDH Lab
Not detected below 6 ug/l Minimum Reporting Level , sample collected Oct 14, 2013 12:47, sampling point TF081 Glyphosate 2034 EPA method 547 Not recorded
Collected
Oct 14, 2013 12:45
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
131015-014SC
Laboratory
MSDH Lab
Not detected below 6 ug/l Minimum Reporting Level , sample collected Oct 14, 2013 12:45, sampling point TF080 Glyphosate 2034 EPA method 547 Not recorded
Collected
Oct 14, 2013 12:35
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
131015-002NI
Laboratory
MSDH Lab
5.25 mg/l , sample collected Oct 14, 2013 12:35, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Oct 1, 2013 – Dec 31, 2013
5.25 mg/l , sample collected Oct 14, 2013 12:35, sampling point TF080 Nitrate 1040 EPA method QC10107041C Oct 1, 2013 – Dec 31, 2013
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Oct 14, 2013 12:35, sampling point TF080 Nitrite 1041 EPA method QC10107041C Oct 1, 2013 – Dec 31, 2013
Collected
Oct 14, 2013 12:27
Sampling point
TF081 Treatment Plant 081
Sample type
Routine
Lab sample
131015-001NI
Laboratory
MSDH Lab
2.06 mg/l , sample collected Oct 14, 2013 12:27, sampling point TF081 Nitrate-Nitrite 1038 EPA method QC10107041C Oct 1, 2013 – Dec 31, 2013
2.06 mg/l , sample collected Oct 14, 2013 12:27, sampling point TF081 Nitrate 1040 EPA method QC10107041C Oct 1, 2013 – Dec 31, 2013
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Oct 14, 2013 12:27, sampling point TF081 Nitrite 1041 EPA method QC10107041C Oct 1, 2013 – Dec 31, 2013
Collected
Oct 7, 2013 01:43
Sampling point
TF081 Treatment Plant 081
Sample type
Routine
Lab sample
131008-005S5
Laboratory
MSDH Lab
Not detected below 0.01 ug/l Minimum Reporting Level , sample collected Oct 7, 2013 01:43, sampling point TF081 Endrin 2005 EPA method 505 Not recorded
Not detected below 0.01 ug/l Minimum Reporting Level , sample collected Oct 7, 2013 01:43, sampling point TF081 BHC-Gamma 2010 EPA method 505 Not recorded
Not detected below 0.01 ug/l Minimum Reporting Level , sample collected Oct 7, 2013 01:43, sampling point TF081 Methoxychlor 2015 EPA method 505 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 7, 2013 01:43, sampling point TF081 Toxaphene 2020 EPA method 505 Not recorded
Not detected below 0.02 ug/l Minimum Reporting Level , sample collected Oct 7, 2013 01:43, sampling point TF081 Hexachlorocyclopentadiene 2042 EPA method 505 Not recorded
Not detected below 0.01 ug/l Minimum Reporting Level , sample collected Oct 7, 2013 01:43, sampling point TF081 Heptachlor 2065 EPA method 505 Not recorded
Not detected below 0.01 ug/l Minimum Reporting Level , sample collected Oct 7, 2013 01:43, sampling point TF081 Heptachlor Epoxide 2067 EPA method 505 Not recorded
Not detected below 0.01 ug/l Minimum Reporting Level , sample collected Oct 7, 2013 01:43, sampling point TF081 Hexachlorobenzene 2274 EPA method 505 Not recorded
Not detected below 0.1 ug/l Minimum Reporting Level , sample collected Oct 7, 2013 01:43, sampling point TF081 Aroclor 1016 2388 EPA method 505 Not recorded
Not detected below 0.1 ug/l Minimum Reporting Level , sample collected Oct 7, 2013 01:43, sampling point TF081 Aroclor 1221 2390 EPA method 505 Not recorded
Not detected below 0.1 ug/l Minimum Reporting Level , sample collected Oct 7, 2013 01:43, sampling point TF081 Aroclor 1232 2392 EPA method 505 Not recorded
Not detected below 0.1 ug/l Minimum Reporting Level , sample collected Oct 7, 2013 01:43, sampling point TF081 Aroclor 1242 2394 EPA method 505 Not recorded
Not detected below 0.1 ug/l Minimum Reporting Level , sample collected Oct 7, 2013 01:43, sampling point TF081 Aroclor 1248 2396 EPA method 505 Not recorded
Not detected below 0.1 ug/l Minimum Reporting Level , sample collected Oct 7, 2013 01:43, sampling point TF081 Aroclor 1254 2398 EPA method 505 Not recorded
Not detected below 0.1 ug/l Minimum Reporting Level , sample collected Oct 7, 2013 01:43, sampling point TF081 Aroclor 1260 2400 EPA method 505 Not recorded
Not detected below 0.1 ug/l Minimum Reporting Level , sample collected Oct 7, 2013 01:43, sampling point TF081 Chlordane 2959 EPA method 505 Not recorded
Collected
Oct 7, 2013 01:41
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
131008-004S5
Laboratory
MSDH Lab
Not detected below 0.01 ug/l Minimum Reporting Level , sample collected Oct 7, 2013 01:41, sampling point TF080 Endrin 2005 EPA method 505 Not recorded
Not detected below 0.01 ug/l Minimum Reporting Level , sample collected Oct 7, 2013 01:41, sampling point TF080 BHC-Gamma 2010 EPA method 505 Not recorded
Not detected below 0.01 ug/l Minimum Reporting Level , sample collected Oct 7, 2013 01:41, sampling point TF080 Methoxychlor 2015 EPA method 505 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 7, 2013 01:41, sampling point TF080 Toxaphene 2020 EPA method 505 Not recorded
Not detected below 0.02 ug/l Minimum Reporting Level , sample collected Oct 7, 2013 01:41, sampling point TF080 Hexachlorocyclopentadiene 2042 EPA method 505 Not recorded
Not detected below 0.01 ug/l Minimum Reporting Level , sample collected Oct 7, 2013 01:41, sampling point TF080 Heptachlor 2065 EPA method 505 Not recorded
Not detected below 0.01 ug/l Minimum Reporting Level , sample collected Oct 7, 2013 01:41, sampling point TF080 Heptachlor Epoxide 2067 EPA method 505 Not recorded
Not detected below 0.01 ug/l Minimum Reporting Level , sample collected Oct 7, 2013 01:41, sampling point TF080 Hexachlorobenzene 2274 EPA method 505 Not recorded
Not detected below 0.1 ug/l Minimum Reporting Level , sample collected Oct 7, 2013 01:41, sampling point TF080 Aroclor 1016 2388 EPA method 505 Not recorded
Not detected below 0.1 ug/l Minimum Reporting Level , sample collected Oct 7, 2013 01:41, sampling point TF080 Aroclor 1221 2390 EPA method 505 Not recorded
Not detected below 0.1 ug/l Minimum Reporting Level , sample collected Oct 7, 2013 01:41, sampling point TF080 Aroclor 1232 2392 EPA method 505 Not recorded
Not detected below 0.1 ug/l Minimum Reporting Level , sample collected Oct 7, 2013 01:41, sampling point TF080 Aroclor 1242 2394 EPA method 505 Not recorded
Not detected below 0.1 ug/l Minimum Reporting Level , sample collected Oct 7, 2013 01:41, sampling point TF080 Aroclor 1248 2396 EPA method 505 Not recorded
Not detected below 0.1 ug/l Minimum Reporting Level , sample collected Oct 7, 2013 01:41, sampling point TF080 Aroclor 1254 2398 EPA method 505 Not recorded
Not detected below 0.1 ug/l Minimum Reporting Level , sample collected Oct 7, 2013 01:41, sampling point TF080 Aroclor 1260 2400 EPA method 505 Not recorded
Not detected below 0.1 ug/l Minimum Reporting Level , sample collected Oct 7, 2013 01:41, sampling point TF080 Chlordane 2959 EPA method 505 Not recorded

Routine (10).