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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

MS0760044 , Delta Branch Experiment Sta

22 of the 53 analytes this system has been tested for have been detected at least once, across 176 samples on record.

The other 31 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 176 samples on record, detections range from November 3, 2003 to August 2, 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 Delta Branch Experiment Sta, 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 69 of 69 results Jul 12, 2007 Aug 12, 2025
Lead 1030 Inorganic Chemical 37 of 69 results Jul 12, 2007 Aug 12, 2025
TTHM 2950 Organic Chemical 27 of 27 results Sep 20, 2004 Mar 28, 2023
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 24 of 26 results Nov 17, 2004 Oct 3, 2022
Chloroform 2941 Organic Chemical 17 of 18 results May 22, 2006 Aug 16, 2017
Barium 1010 Inorganic Chemical 11 of 11 results Nov 3, 2003 Aug 2, 2026
Dichloroacetic Acid 2451 Organic Chemical 11 of 11 results Feb 26, 2008 Aug 16, 2017
Chromium 1020 Inorganic Chemical 9 of 11 results Nov 3, 2003 Aug 2, 2026
Fluoride 1025 Inorganic Chemical 9 of 11 results Nov 3, 2003 Aug 2, 2026
Bromodichloromethane 2943 Organic Chemical 9 of 18 results May 22, 2006 Aug 8, 2011
Dibromochloromethane 2944 Organic Chemical 8 of 18 results Aug 14, 2006 Aug 8, 2011
Nickel 1036 Inorganic Chemical 3 of 10 results Nov 3, 2003 May 29, 2013
Arsenic 1005 Inorganic Chemical 2 of 11 results Apr 12, 2004 Mar 31, 2025
Trichloroacetic Acid 2452 Organic Chemical 2 of 11 results Feb 26, 2008 Jun 3, 2008
Selenium 1045 Inorganic Chemical 2 of 11 results Apr 12, 2004 Apr 17, 2006
Sodium 1052 Inorganic Chemical 1 of 1 result Apr 3, 2023 Apr 3, 2023
Monochloroacetic Acid 2450 Organic Chemical 1 of 11 results Jul 21, 2014 Jul 21, 2014
Dibromoacetic Acid 2454 Organic Chemical 1 of 11 results Aug 8, 2011 Aug 8, 2011
Bromoform 2942 Organic Chemical 1 of 18 results Aug 8, 2011 Aug 8, 2011
Monobromoacetic Acid 2453 Organic Chemical 1 of 11 results Feb 5, 2009 Feb 5, 2009
Nitrite 1041 Inorganic Chemical 1 of 21 results Jul 28, 2008 Jul 28, 2008
Sulfate 1055 Inorganic Chemical 1 of 2 results Nov 3, 2003 Nov 3, 2003

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 176 samples, newest first — collected April 18, 2017 to November 28, 2017. The summary above covers all 176.

27 results from the 10 samples listed here: 14 detected, 13 not detected. Across the whole record it is 247 of 665. 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 Delta Branch Experiment Sta, every result from 71 to 80 of 176 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 28, 2017 16:35
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
171129-003PB
Laboratory
MSDH Lab
0.0246 mg/l , sample collected Nov 28, 2017 16:35, sampling point TF101 Copper, Free 1022 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 28, 2017 16:35, sampling point TF101 Lead 1030 EPA method 200.8 Not recorded
Collected
Aug 16, 2017 16:30
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
170817-007HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Aug 16, 2017 16:30, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.002 mg/l , sample collected Aug 16, 2017 16:30, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 16, 2017 16:30, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 16, 2017 16:30, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 16, 2017 16:30, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.002 mg/l , sample collected Aug 16, 2017 16:30, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2015 – Dec 31, 2017
Collected
Aug 16, 2017 16:25
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
170817-007TH
Laboratory
MSDH Lab
1.91 ug/l , sample collected Aug 16, 2017 16:25, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 16, 2017 16:25, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 16, 2017 16:25, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 16, 2017 16:25, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
1.91 ug/l , sample collected Aug 16, 2017 16:25, sampling point MRT000 TTHM 2950 Jan 1, 2015 – Dec 31, 2017
Collected
Aug 2, 2017 08:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
170803-110PB
Laboratory
MSDH Lab
0.028 mg/l , sample collected Aug 2, 2017 08:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
0.0097 mg/l , sample collected Aug 2, 2017 08:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Aug 2, 2017 06:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
170803-109PB
Laboratory
MSDH Lab
0.1686 mg/l , sample collected Aug 2, 2017 06:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
0.1022 mg/l , sample collected Aug 2, 2017 06:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Aug 2, 2017 07:15
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
170803-108PB
Laboratory
MSDH Lab
0.0191 mg/l , sample collected Aug 2, 2017 07:15, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
0.0005 mg/l , sample collected Aug 2, 2017 07:15, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Aug 2, 2017 07:10
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
170803-107PB
Laboratory
MSDH Lab
0.1106 mg/l , sample collected Aug 2, 2017 07:10, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
0.0145 mg/l , sample collected Aug 2, 2017 07:10, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Aug 2, 2017 07:10
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
170803-106PB
Laboratory
MSDH Lab
0.1127 mg/l , sample collected Aug 2, 2017 07:10, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 2, 2017 07:10, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Jun 13, 2017 16:40
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
170616-006RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 13, 2017 16:40, sampling point TF101 Combined Uranium 4006 EPA method 200.8 Not recorded
Collected
Apr 18, 2017 04:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
170419-001NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 18, 2017 04:30, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Apr 18, 2017 04:30, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 18, 2017 04:30, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017

Routine (10).