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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

MS0750011 , Yokena-Jeff Davis Water District Inc

13 of the 13 analytes this system has been tested for have been detected at least once, across 279 samples on record.

The other 0 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 279 samples on record, detections range from August 25, 2004 to June 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 Yokena-Jeff Davis Water District Inc, 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
TTHM 2950 Organic Chemical 115 of 115 results Aug 25, 2004 Mar 10, 2026
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 110 of 110 results Aug 25, 2004 Jun 22, 2026
Chloroform 2941 Organic Chemical 78 of 78 results Oct 23, 2006 Mar 10, 2026
Bromodichloromethane 2943 Organic Chemical 78 of 78 results Oct 23, 2006 Mar 10, 2026
Dibromochloromethane 2944 Organic Chemical 78 of 78 results Oct 23, 2006 Mar 10, 2026
Dichloroacetic Acid 2451 Organic Chemical 74 of 74 results Oct 22, 2007 Jun 22, 2026
Trichloroacetic Acid 2452 Organic Chemical 74 of 74 results Oct 22, 2007 Jun 22, 2026
Dibromoacetic Acid 2454 Organic Chemical 68 of 74 results Jan 22, 2008 Jun 22, 2026
Copper, Free 1022 Inorganic Chemical 52 of 52 results Aug 14, 2007 Aug 9, 2023
Bromoform 2942 Organic Chemical 34 of 78 results Oct 23, 2006 Mar 10, 2026
Monochloroacetic Acid 2450 Organic Chemical 32 of 74 results Apr 21, 2008 Oct 20, 2020
Lead 1030 Inorganic Chemical 12 of 52 results Aug 14, 2007 Aug 9, 2023
Monobromoacetic Acid 2453 Organic Chemical 8 of 74 results Nov 4, 2008 Oct 20, 2020

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 51–60 of 279 samples, newest first — collected January 19, 2022 to August 8, 2022. The summary above covers all 279.

10 results from the 10 samples listed here: 10 detected, 0 not detected. Across the whole record it is 813 of 1,011. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.

We withheld the location of 2 sampling points below. The location on record identifies a private home, and we do not publish those. That is our decision, not the agency’s. The sampling point, its type and every result taken there are published unchanged.

Chemical and radiological sample results for Yokena-Jeff Davis Water District Inc, every result from 51 to 60 of 279 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
Aug 8, 2022 13:46
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
TH-220809-002
Laboratory
MSDH Lab
75.7 ug/l , sample collected Aug 8, 2022 13:46, sampling point SM2 TTHM 2950 EPA method 524.2 Jul 1, 2022 – Sep 30, 2022
Collected
Aug 8, 2022 14:10
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
TH-220809-001
Laboratory
MSDH Lab
73.1 ug/l , sample collected Aug 8, 2022 14:10, sampling point SM1 TTHM 2950 EPA method 524.2 Jul 1, 2022 – Sep 30, 2022
Collected
Apr 22, 2022 14:00
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
HA-220423-002
Laboratory
MSDH Lab
13.3 ug/l , sample collected Apr 22, 2022 14:00, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Apr 1, 2022 – Jun 30, 2022
Collected
Apr 22, 2022 13:45
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
HA-220423-001
Laboratory
MSDH Lab
14.4 ug/l , sample collected Apr 22, 2022 13:45, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Apr 1, 2022 – Jun 30, 2022
Collected
Apr 22, 2022 14:00
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
TH-220423-002
Laboratory
MSDH Lab
50.5 ug/l , sample collected Apr 22, 2022 14:00, sampling point SM2 TTHM 2950 EPA method 524.2 Apr 1, 2022 – Jun 30, 2022
Collected
Apr 22, 2022 13:45
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
TH-220423-001
Laboratory
MSDH Lab
53.1 ug/l , sample collected Apr 22, 2022 13:45, sampling point SM1 TTHM 2950 EPA method 524.2 Apr 1, 2022 – Jun 30, 2022
Collected
Jan 19, 2022 14:50
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
HA-220120-002
Laboratory
MSDH Lab
9.92 ug/l , sample collected Jan 19, 2022 14:50, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2022 – Mar 31, 2022
Collected
Jan 19, 2022 14:14
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
HA-220120-001
Laboratory
MSDH Lab
12 ug/l , sample collected Jan 19, 2022 14:14, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2022 – Mar 31, 2022
Collected
Jan 19, 2022 14:50
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
TH-220120-002
Laboratory
MSDH Lab
27.9 ug/l , sample collected Jan 19, 2022 14:50, sampling point SM2 TTHM 2950 EPA method 524.2 Jan 1, 2022 – Mar 31, 2022
Collected
Jan 19, 2022 14:14
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
TH-220120-001
Laboratory
MSDH Lab
28.9 ug/l , sample collected Jan 19, 2022 14:14, sampling point SM1 TTHM 2950 EPA method 524.2 Jan 1, 2022 – Mar 31, 2022

Routine (10).