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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 171–180 of 279 samples, newest first — collected July 27, 2015 to February 1, 2016. The summary above covers all 279.

56 results from the 10 samples listed here: 42 detected, 14 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 171 to 180 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
Feb 1, 2016 01:20
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
160202-001TH
Laboratory
MSDH Lab
29.5 ug/l , sample collected Feb 1, 2016 01:20, sampling point SM1 Chloroform 2941 EPA method 524.2 Not recorded
2.35 ug/l , sample collected Feb 1, 2016 01:20, sampling point SM1 Bromoform 2942 EPA method 524.2 Not recorded
21.7 ug/l , sample collected Feb 1, 2016 01:20, sampling point SM1 Bromodichloromethane 2943 EPA method 524.2 Not recorded
13.7 ug/l , sample collected Feb 1, 2016 01:20, sampling point SM1 Dibromochloromethane 2944 EPA method 524.2 Not recorded
67.3 ug/l , sample collected Feb 1, 2016 01:20, sampling point SM1 TTHM 2950 Jan 1, 2016 – Mar 31, 2016
Collected
Feb 1, 2016 01:45
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
160202-002HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Feb 1, 2016 01:45, sampling point SM2 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.014 mg/l , sample collected Feb 1, 2016 01:45, sampling point SM2 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.008 mg/l , sample collected Feb 1, 2016 01:45, sampling point SM2 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Feb 1, 2016 01:45, sampling point SM2 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
0.004 mg/l , sample collected Feb 1, 2016 01:45, sampling point SM2 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.026 mg/l , sample collected Feb 1, 2016 01:45, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2016 – Mar 31, 2016
Collected
Feb 1, 2016 01:20
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
160202-001HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Feb 1, 2016 01:20, sampling point SM1 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.014 mg/l , sample collected Feb 1, 2016 01:20, sampling point SM1 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.008 mg/l , sample collected Feb 1, 2016 01:20, sampling point SM1 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Feb 1, 2016 01:20, sampling point SM1 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
0.004 mg/l , sample collected Feb 1, 2016 01:20, sampling point SM1 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.026 mg/l , sample collected Feb 1, 2016 01:20, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2016 – Mar 31, 2016
Collected
Oct 28, 2015 03:15
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
151029-020TH
Laboratory
MSDH Lab
33.5 ug/l , sample collected Oct 28, 2015 03:15, sampling point SM2 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 28, 2015 03:15, sampling point SM2 Bromoform 2942 EPA method 524.2 Not recorded
18.4 ug/l , sample collected Oct 28, 2015 03:15, sampling point SM2 Bromodichloromethane 2943 EPA method 524.2 Not recorded
9.38 ug/l , sample collected Oct 28, 2015 03:15, sampling point SM2 Dibromochloromethane 2944 EPA method 524.2 Not recorded
61.3 ug/l , sample collected Oct 28, 2015 03:15, sampling point SM2 TTHM 2950 EPA method 524.2 Oct 1, 2015 – Dec 31, 2015
Collected
Oct 28, 2015 02:15
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
151029-019TH
Laboratory
MSDH Lab
32.9 ug/l , sample collected Oct 28, 2015 02:15, sampling point SM1 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 28, 2015 02:15, sampling point SM1 Bromoform 2942 EPA method 524.2 Not recorded
16.9 ug/l , sample collected Oct 28, 2015 02:15, sampling point SM1 Bromodichloromethane 2943 EPA method 524.2 Not recorded
8.72 ug/l , sample collected Oct 28, 2015 02:15, sampling point SM1 Dibromochloromethane 2944 EPA method 524.2 Not recorded
58.5 ug/l , sample collected Oct 28, 2015 02:15, sampling point SM1 TTHM 2950 EPA method 524.2 Oct 1, 2015 – Dec 31, 2015
Collected
Oct 28, 2015 03:15
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
151029-010HA
Laboratory
MSDH Lab
0.003 mg/l , sample collected Oct 28, 2015 03:15, sampling point SM2 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.011 mg/l , sample collected Oct 28, 2015 03:15, sampling point SM2 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.006 mg/l , sample collected Oct 28, 2015 03:15, sampling point SM2 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Oct 28, 2015 03:15, sampling point SM2 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
0.003 mg/l , sample collected Oct 28, 2015 03:15, sampling point SM2 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.023 mg/l , sample collected Oct 28, 2015 03:15, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 Oct 1, 2015 – Dec 31, 2015
Collected
Oct 28, 2015 02:15
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
151029-009HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Oct 28, 2015 02:15, sampling point SM1 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.01 mg/l , sample collected Oct 28, 2015 02:15, sampling point SM1 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.008 mg/l , sample collected Oct 28, 2015 02:15, sampling point SM1 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Oct 28, 2015 02:15, sampling point SM1 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
0.002 mg/l , sample collected Oct 28, 2015 02:15, sampling point SM1 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.02 mg/l , sample collected Oct 28, 2015 02:15, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 Oct 1, 2015 – Dec 31, 2015
Collected
Jul 27, 2015 01:40
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
150728-011HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Jul 27, 2015 01:40, sampling point SM2 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.007 mg/l , sample collected Jul 27, 2015 01:40, sampling point SM2 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.005 mg/l , sample collected Jul 27, 2015 01:40, sampling point SM2 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 27, 2015 01:40, sampling point SM2 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
0.002 mg/l , sample collected Jul 27, 2015 01:40, sampling point SM2 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.014 mg/l , sample collected Jul 27, 2015 01:40, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 Jul 1, 2015 – Sep 30, 2015
Collected
Jul 27, 2015 02:05
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
150728-010HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Jul 27, 2015 02:05, sampling point SM1 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.005 mg/l , sample collected Jul 27, 2015 02:05, sampling point SM1 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.007 mg/l , sample collected Jul 27, 2015 02:05, sampling point SM1 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 27, 2015 02:05, sampling point SM1 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
0.001 mg/l , sample collected Jul 27, 2015 02:05, sampling point SM1 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.013 mg/l , sample collected Jul 27, 2015 02:05, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 Jul 1, 2015 – Sep 30, 2015
Collected
Jul 27, 2015 01:40
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
150728-011TH
Laboratory
MSDH Lab
24.4 ug/l , sample collected Jul 27, 2015 01:40, sampling point SM2 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 27, 2015 01:40, sampling point SM2 Bromoform 2942 EPA method 524.2 Not recorded
13.2 ug/l , sample collected Jul 27, 2015 01:40, sampling point SM2 Bromodichloromethane 2943 EPA method 524.2 Not recorded
6.42 ug/l , sample collected Jul 27, 2015 01:40, sampling point SM2 Dibromochloromethane 2944 EPA method 524.2 Not recorded
44 ug/l , sample collected Jul 27, 2015 01:40, sampling point SM2 TTHM 2950 EPA method 524.2 Jul 1, 2015 – Sep 30, 2015

Routine (10).