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
MS0630003 , Delta City Utility District
42 of the 72 analytes this system has been tested for have been detected at least once, across 469 samples on record.
The other 30 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 469 samples on record, detections range from November 17, 2003 to February 17, 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.
| Analyte | Kind | Detected in | First detected | Last detected |
|---|---|---|---|---|
| TTHM 2950 | Organic Chemical | 126 of 132 results | Aug 24, 2004 | Feb 17, 2026 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 125 of 131 results | Aug 24, 2004 | Feb 17, 2026 |
| Chloroform 2941 | Organic Chemical | 80 of 84 results | May 23, 2006 | Feb 17, 2026 |
| Bromodichloromethane 2943 | Organic Chemical | 79 of 85 results | May 23, 2006 | Feb 17, 2026 |
| Dibromochloromethane 2944 | Organic Chemical | 77 of 85 results | May 23, 2006 | Feb 17, 2026 |
| Dichloroacetic Acid 2451 | Organic Chemical | 75 of 79 results | Feb 27, 2008 | Feb 17, 2026 |
| Trichloroacetic Acid 2452 | Organic Chemical | 74 of 79 results | Feb 27, 2008 | Feb 17, 2026 |
| Bromoform 2942 | Organic Chemical | 73 of 85 results | May 23, 2006 | Feb 17, 2026 |
| Dibromoacetic Acid 2454 | Organic Chemical | 70 of 79 results | Feb 27, 2008 | Feb 17, 2026 |
| Copper, Free 1022 | Inorganic Chemical | 31 of 31 results | Jul 9, 2007 | Sep 15, 2023 |
| Lead 1030 | Inorganic Chemical | 21 of 31 results | Jul 9, 2007 | Sep 15, 2023 |
| Fluoride 1025 | Inorganic Chemical | 20 of 20 results | Nov 17, 2003 | Mar 31, 2025 |
| Barium 1010 | Inorganic Chemical | 18 of 18 results | Nov 17, 2003 | Mar 31, 2025 |
| Xylenes, Total 2955 | Organic Chemical | 16 of 76 results | Sep 9, 2004 | Aug 11, 2010 |
| Chromium 1020 | Inorganic Chemical | 15 of 18 results | Nov 17, 2003 | Mar 31, 2025 |
| Arsenic 1005 | Inorganic Chemical | 12 of 18 results | Mar 27, 2006 | Mar 31, 2025 |
| Monochloroacetic Acid 2450 | Organic Chemical | 12 of 79 results | Nov 18, 2009 | Aug 23, 2017 |
| Monobromoacetic Acid 2453 | Organic Chemical | 8 of 79 results | Aug 24, 2011 | Sep 8, 2020 |
| Selenium 1045 | Inorganic Chemical | 7 of 18 results | Mar 24, 2004 | May 7, 2019 |
| Sodium 1052 | Inorganic Chemical | 6 of 6 results | Mar 16, 2009 | Dec 12, 2023 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 6 of 7 results | Dec 6, 2011 | Dec 10, 2014 |
| Nickel 1036 | Inorganic Chemical | 4 of 18 results | May 12, 2010 | Mar 31, 2025 |
| Carbon Tetrachloride 2982 | Organic Chemical | 3 of 76 results | Aug 20, 2007 | Jun 16, 2008 |
| Nitrite 1041 | Inorganic Chemical | 2 of 39 results | May 21, 2014 | Apr 19, 2021 |
| Calcium 1016 | Inorganic Chemical | 2 of 2 results | Mar 16, 2009 | Mar 16, 2009 |
| Chloride 1017 | Inorganic Chemical | 2 of 2 results | Mar 16, 2009 | Mar 16, 2009 |
| Magnesium 1031 | Inorganic Chemical | 2 of 2 results | Mar 16, 2009 | Mar 16, 2009 |
| Manganese 1032 | Inorganic Chemical | 2 of 2 results | Mar 16, 2009 | Mar 16, 2009 |
| Potassium 1042 | Inorganic Chemical | 2 of 2 results | Mar 16, 2009 | Mar 16, 2009 |
| Residue, Total, Filterable 1057 | Water Quality | 2 of 2 results | Mar 16, 2009 | Mar 16, 2009 |
| Alkalinity, Caco3 Stability 1067 | Water Quality | 2 of 2 results | Mar 16, 2009 | Mar 16, 2009 |
| Carbon Dioxide 1901 | Water Quality | 2 of 2 results | Mar 16, 2009 | Mar 16, 2009 |
| Color 1905 | Water Quality | 2 of 2 results | Mar 16, 2009 | Mar 16, 2009 |
| Hardness, Total (As Caco3) 1915 | Water Quality | 2 of 2 results | Mar 16, 2009 | Mar 16, 2009 |
| Alkalinity, Total 1927 | Water Quality | 2 of 2 results | Mar 16, 2009 | Mar 16, 2009 |
| Calculated Sodium NACA | Water Quality | 2 of 2 results | Mar 16, 2009 | Mar 16, 2009 |
| PH, Field Result PHFD | Water Quality | 2 of 2 results | Mar 16, 2009 | Mar 16, 2009 |
| P-Dichlorobenzene 2969 | Organic Chemical | 2 of 76 results | Jun 16, 2005 | Jun 16, 2005 |
| Thallium, Total 1085 | Inorganic Chemical | 1 of 18 results | May 12, 2010 | May 12, 2010 |
| Iron 1028 | Inorganic Chemical | 1 of 2 results | Mar 16, 2009 | Mar 16, 2009 |
| Iron, Field Result FEFD | Inorganic Chemical | 1 of 2 results | Mar 16, 2009 | Mar 16, 2009 |
| Nitrate 1040 | Inorganic Chemical | 1 of 39 results | Aug 23, 2006 | Aug 23, 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 51–60 of 469 samples, newest first — collected April 17, 2023 to August 18, 2023. The summary above covers all 469.
14 results from the 10 samples listed here: 7 detected, 7 not detected. Across the whole record it is 992 of 3,067. 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 6 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.
| Result | Analyte | Monitoring period |
|---|---|---|
|
||
| 0.0778 mg/l , sample collected Aug 18, 2023 07:35, sampling point LC0006 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2021 – Dec 31, 2023 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 18, 2023 07:35, sampling point LC0006 | Lead 1030 EPA method 200.8 | Jan 1, 2021 – Dec 31, 2023 |
|
||
| 0.0211 mg/l , sample collected Aug 17, 2023 09:00, sampling point LC0010 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2021 – Dec 31, 2023 |
| 3.62 ug/l , sample collected Aug 17, 2023 09:00, sampling point LC0010 | Lead 1030 EPA method 200.8 | Jan 1, 2021 – Dec 31, 2023 |
|
||
| 0.031 mg/l , sample collected Aug 17, 2023 06:00, sampling point LC0001 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2021 – Dec 31, 2023 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 17, 2023 06:00, sampling point LC0001 | Lead 1030 EPA method 200.8 | Jan 1, 2021 – Dec 31, 2023 |
|
||
| 0.0423 mg/l , sample collected Aug 17, 2023 06:20, sampling point LC0007 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2021 – Dec 31, 2023 |
| 0.8 ug/l , sample collected Aug 17, 2023 06:20, sampling point LC0007 | Lead 1030 EPA method 200.8 | Jan 1, 2021 – Dec 31, 2023 |
|
||
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 7, 2023 10:55, sampling point SM2 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jul 1, 2023 – Sep 30, 2023 |
|
||
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 7, 2023 11:25, sampling point SM1 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jul 1, 2023 – Sep 30, 2023 |
|
||
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 7, 2023 10:55, sampling point SM2 | TTHM 2950 EPA method 524.2 | Jul 1, 2023 – Sep 30, 2023 |
|
||
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 7, 2023 11:25, sampling point SM1 | TTHM 2950 EPA method 524.2 | Jul 1, 2023 – Sep 30, 2023 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 22, 2023 14:59, sampling point TF101 | Combined Uranium 4006 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2023 |
|
||
| 24.8 ug/l , sample collected Apr 17, 2023 15:18, sampling point SM2 | TTHM 2950 EPA method 524.2 | Apr 1, 2023 – Jun 30, 2023 |
-
- Collected
- Aug 18, 2023 07:35
- Sampling point
- LC0006 Location withheld
- Sample type
- Routine
- Lab sample
- PB-230822-001
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Dec 31, 2023
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0778 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Aug 17, 2023 09:00
- Sampling point
- LC0010 Location withheld
- Sample type
- Routine
- Lab sample
- PB-230824-015
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Dec 31, 2023
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0211 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 3.62 ug/l
-
- Collected
- Aug 17, 2023 06:00
- Sampling point
- LC0001 Location withheld
- Sample type
- Routine
- Lab sample
- PB-230822-003
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Dec 31, 2023
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.031 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Aug 17, 2023 06:20
- Sampling point
- LC0007 Location withheld
- Sample type
- Routine
- Lab sample
- PB-230822-002
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Dec 31, 2023
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0423 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.8 ug/l
-
- Collected
- Aug 7, 2023 10:55
- Sampling point
- SM2 Location withheld
- Sample type
- Routine
- Lab sample
- HA-230808-010
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2023 – Sep 30, 2023
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Aug 7, 2023 11:25
- Sampling point
- SM1 Location withheld
- Sample type
- Routine
- Lab sample
- HA-230808-009
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2023 – Sep 30, 2023
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Aug 7, 2023 10:55
- Sampling point
- SM2 Location withheld
- Sample type
- Routine
- Lab sample
- TH-230808-010
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2023 – Sep 30, 2023
-
TTHM 2950 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Aug 7, 2023 11:25
- Sampling point
- SM1 Location withheld
- Sample type
- Routine
- Lab sample
- TH-230808-009
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2023 – Sep 30, 2023
-
TTHM 2950 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- May 22, 2023 14:59
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- RU-230523-002
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2015 – Dec 31, 2023
-
Combined Uranium 4006 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Apr 17, 2023 15:18
- Sampling point
- SM2 Location withheld
- Sample type
- Routine
- Lab sample
- TH-230418-026
- Laboratory
- MSDH Lab
- Monitoring period
- Apr 1, 2023 – Jun 30, 2023
-
TTHM 2950 EPA method 524.2
- Result
- 24.8 ug/l
Routine (10).