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
MS0610023 , City of Richland
29 of the 61 analytes this system has been tested for have been detected at least once, across 630 samples on record.
The other 32 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 630 samples on record, detections range from October 20, 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.
| Analyte | Kind | Detected in | First detected | Last detected |
|---|---|---|---|---|
| Copper, Free 1022 | Inorganic Chemical | 161 of 161 results | Jun 8, 2004 | Jul 2, 2025 |
| Lead 1030 | Inorganic Chemical | 66 of 161 results | Jun 8, 2004 | Jul 2, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 60 of 60 results | Aug 9, 2004 | Jun 24, 2026 |
| TTHM 2950 | Organic Chemical | 58 of 59 results | Aug 9, 2004 | Mar 18, 2026 |
| Barium 1010 | Inorganic Chemical | 51 of 51 results | Oct 20, 2003 | Apr 8, 2025 |
| Fluoride 1025 | Inorganic Chemical | 51 of 51 results | Oct 20, 2003 | Apr 8, 2025 |
| Chromium 1020 | Inorganic Chemical | 35 of 51 results | Oct 20, 2003 | Apr 8, 2025 |
| Dichloroacetic Acid 2451 | Organic Chemical | 22 of 22 results | Jul 7, 2008 | Jun 24, 2026 |
| Trichloroacetic Acid 2452 | Organic Chemical | 22 of 22 results | Jul 7, 2008 | Jun 24, 2026 |
| Chloroform 2941 | Organic Chemical | 22 of 22 results | Jun 19, 2007 | Mar 18, 2026 |
| Bromodichloromethane 2943 | Organic Chemical | 22 of 22 results | Jun 19, 2007 | Mar 18, 2026 |
| Sodium 1052 | Inorganic Chemical | 18 of 18 results | Sep 24, 2019 | Jul 22, 2026 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 15 of 20 results | Mar 13, 2012 | Oct 10, 2012 |
| Nickel 1036 | Inorganic Chemical | 13 of 51 results | Mar 27, 2006 | Apr 8, 2025 |
| Gross Alpha, Excl. Radon & U 4000 | Radionuclide | 7 of 8 results | Sep 22, 2009 | Mar 15, 2010 |
| Combined Radium (-226 & -228) 4010 | Radionuclide | 7 of 28 results | Sep 22, 2009 | Mar 15, 2010 |
| Radium-226 4020 | Radionuclide | 7 of 28 results | Sep 22, 2009 | Mar 15, 2010 |
| Gross Beta Particle Activity 4100 | Radionuclide | 7 of 7 results | Sep 22, 2009 | Mar 15, 2010 |
| Gross Alpha Particle Activity 4109 | Radionuclide | 7 of 8 results | Sep 22, 2009 | Mar 15, 2010 |
| Radium-228 4030 | Radionuclide | 5 of 28 results | Sep 22, 2009 | Mar 15, 2010 |
| Monobromoacetic Acid 2453 | Organic Chemical | 5 of 22 results | Jun 15, 2009 | Dec 14, 2009 |
| Nitrite 1041 | Inorganic Chemical | 4 of 108 results | Jul 31, 2006 | Feb 25, 2021 |
| Monochloroacetic Acid 2450 | Organic Chemical | 4 of 22 results | Jul 7, 2008 | Jul 11, 2018 |
| Dichloromethane 2964 | Organic Chemical | 3 of 59 results | Aug 23, 2004 | Aug 23, 2004 |
| Sulfate 1055 | Inorganic Chemical | 3 of 3 results | Oct 20, 2003 | Oct 20, 2003 |
| Selenium 1045 | Inorganic Chemical | 2 of 51 results | Mar 22, 2004 | Mar 27, 2006 |
| Xylenes, Total 2955 | Organic Chemical | 1 of 59 results | Sep 7, 2019 | Sep 7, 2019 |
| Carbon Tetrachloride 2982 | Organic Chemical | 1 of 59 results | Mar 30, 2004 | Mar 30, 2004 |
| Mercury 1035 | Inorganic Chemical | 1 of 51 results | Mar 22, 2004 | Mar 22, 2004 |
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 91–100 of 630 samples, newest first — collected October 16, 2023 to January 10, 2024. The summary above covers all 630.
30 results from the 10 samples listed here: 12 detected, 18 not detected. Across the whole record it is 680 of 3,007. 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 1 sampling point 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 |
|---|---|---|
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 10, 2024 07:50, sampling point TF106 | Arsenic 1005 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
| 0.0011 mg/l , sample collected Jan 10, 2024 07:50, sampling point TF106 | Barium 1010 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 10, 2024 07:50, sampling point TF106 | Cadmium 1015 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
| 0.0006 mg/l , sample collected Jan 10, 2024 07:50, sampling point TF106 | Chromium 1020 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
| 0.193 mg/l , sample collected Jan 10, 2024 07:50, sampling point TF106 | Fluoride 1025 EPA method QC 10-109-12-2-A | Jan 1, 2022 – Dec 31, 2024 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 10, 2024 07:50, sampling point TF106 | Mercury 1035 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 10, 2024 07:50, sampling point TF106 | Nickel 1036 EPA method 200.8 | Not recorded |
| Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Jan 10, 2024 07:50, sampling point TF106 | Selenium 1045 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 10, 2024 07:50, sampling point TF106 | Antimony, Total 1074 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 10, 2024 07:50, sampling point TF106 | Beryllium, Total 1075 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 10, 2024 07:50, sampling point TF106 | Thallium, Total 1085 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
|
||
| 93 mg/l , sample collected Nov 30, 2023 11:20, sampling point TF107 | Sodium 1052 EPA method 200.7 | Not recorded |
|
||
| 94.6 mg/l , sample collected Nov 30, 2023 11:40, sampling point TF106 | Sodium 1052 EPA method 200.7 | Not recorded |
|
||
| 107 mg/l , sample collected Nov 30, 2023 11:55, sampling point TF105 | Sodium 1052 EPA method 200.7 | Not recorded |
|
||
| 98.6 mg/l , sample collected Nov 30, 2023 11:00, sampling point TF103 | Sodium 1052 EPA method 200.7 | Not recorded |
|
||
| 96.1 mg/l , sample collected Nov 30, 2023 10:40, sampling point TF102 | Sodium 1052 EPA method 200.7 | Not recorded |
|
||
| 100 mg/l , sample collected Nov 30, 2023 10:25, sampling point TF101 | Sodium 1052 EPA method 200.7 | Not recorded |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 1, 2023 11:30, sampling point TF107 | Arsenic 1005 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2023 |
| 0.0033 mg/l , sample collected Nov 1, 2023 11:30, sampling point TF107 | Barium 1010 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2023 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 1, 2023 11:30, sampling point TF107 | Cadmium 1015 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2023 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 1, 2023 11:30, sampling point TF107 | Chromium 1020 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2023 |
| 0.273 mg/l , sample collected Nov 1, 2023 11:30, sampling point TF107 | Fluoride 1025 EPA method QC 10-109-12-2-A | Jan 1, 2023 – Dec 31, 2023 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 1, 2023 11:30, sampling point TF107 | Mercury 1035 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2023 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 1, 2023 11:30, sampling point TF107 | Nickel 1036 EPA method 200.8 | Not recorded |
| Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Nov 1, 2023 11:30, sampling point TF107 | Selenium 1045 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2023 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 1, 2023 11:30, sampling point TF107 | Antimony, Total 1074 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2023 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 1, 2023 11:30, sampling point TF107 | Beryllium, Total 1075 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2023 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 1, 2023 11:30, sampling point TF107 | Thallium, Total 1085 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2023 |
|
||
| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Oct 25, 2023 11:30, sampling point TF107 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2023 – Dec 31, 2023 |
|
||
| 78.7 ug/l , sample collected Oct 16, 2023 11:30, sampling point SMT | TTHM 2950 EPA method 524.2 | Oct 1, 2023 – Dec 31, 2023 |
-
- Collected
- Jan 10, 2024 07:50
- Sampling point
- TF106 Treatment Facility TF106
- Sample type
- Routine
- Lab sample
- IN-240111-006
- Laboratory
- MSDH Lab
-
Arsenic 1005 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Barium 1010 EPA method 200.8
- Result
- 0.0011 mg/l
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Cadmium 1015 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Chromium 1020 EPA method 200.8
- Result
- 0.0006 mg/l
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Fluoride 1025 EPA method QC 10-109-12-2-A
- Result
- 0.193 mg/l
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Mercury 1035 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Nickel 1036 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Selenium 1045 EPA method 200.8
- Result
- Not detected below 0.0025 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Antimony, Total 1074 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Beryllium, Total 1075 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Thallium, Total 1085 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
- Collected
- Nov 30, 2023 11:20
- Sampling point
- TF107 Treatment Facility TF107
- Sample type
- Routine
- Lab sample
- NA-231201-006
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Sodium 1052 EPA method 200.7
- Result
- 93 mg/l
-
- Collected
- Nov 30, 2023 11:40
- Sampling point
- TF106 Treatment Facility TF106
- Sample type
- Routine
- Lab sample
- NA-231201-005
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Sodium 1052 EPA method 200.7
- Result
- 94.6 mg/l
-
- Collected
- Nov 30, 2023 11:55
- Sampling point
- TF105
- Sample type
- Routine
- Lab sample
- NA-231201-004
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Sodium 1052 EPA method 200.7
- Result
- 107 mg/l
-
- Collected
- Nov 30, 2023 11:00
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- NA-231201-003
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Sodium 1052 EPA method 200.7
- Result
- 98.6 mg/l
-
- Collected
- Nov 30, 2023 10:40
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- NA-231201-002
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Sodium 1052 EPA method 200.7
- Result
- 96.1 mg/l
-
- Collected
- Nov 30, 2023 10:25
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- NA-231201-001
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Sodium 1052 EPA method 200.7
- Result
- 100 mg/l
-
- Collected
- Nov 1, 2023 11:30
- Sampling point
- TF107 Treatment Facility TF107
- Sample type
- Routine
- Lab sample
- IN-231102-004
- Laboratory
- MSDH Lab
-
Arsenic 1005 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2023
-
Barium 1010 EPA method 200.8
- Result
- 0.0033 mg/l
- Monitoring period
- Jan 1, 2023 – Dec 31, 2023
-
Cadmium 1015 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2023
-
Chromium 1020 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2023
-
Fluoride 1025 EPA method QC 10-109-12-2-A
- Result
- 0.273 mg/l
- Monitoring period
- Jan 1, 2023 – Dec 31, 2023
-
Mercury 1035 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2023
-
Nickel 1036 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Selenium 1045 EPA method 200.8
- Result
- Not detected below 0.0025 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2023
-
Antimony, Total 1074 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2023
-
Beryllium, Total 1075 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2023
-
Thallium, Total 1085 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2023
-
- Collected
- Oct 25, 2023 11:30
- Sampling point
- TF107 Treatment Facility TF107
- Sample type
- Routine
- Lab sample
- CN-231025-013
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2023
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- Oct 16, 2023 11:30
- Sampling point
- SMT Location withheld
- Sample type
- Routine
- Lab sample
- TH-231017-014
- Laboratory
- MSDH Lab
- Monitoring period
- Oct 1, 2023 – Dec 31, 2023
-
TTHM 2950 EPA method 524.2
- Result
- 78.7 ug/l
Routine (10).