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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

MS0610023 , City of Richland

29 of the 61 analytes this system has been tested for have been detected at least once, across 632 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 632 samples on record, detections range from October 20, 2003 to August 13, 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 City of Richland, 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 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 16 of 22 results Mar 13, 2012 Aug 13, 2026
Nickel 1036 Inorganic Chemical 13 of 51 results Mar 27, 2006 Apr 8, 2025
Combined Radium (-226 & -228) 4010 Radionuclide 9 of 30 results Sep 22, 2009 Aug 13, 2026
Radium-226 4020 Radionuclide 8 of 30 results Sep 22, 2009 Aug 13, 2026
Gross Alpha, Excl. Radon & U 4000 Radionuclide 7 of 8 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 6 of 30 results Sep 22, 2009 Aug 13, 2026
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 481–490 of 632 samples, newest first — collected December 14, 2009 to March 15, 2010. The summary above covers all 632.

58 results from the 10 samples listed here: 26 detected, 32 not detected. Across the whole record it is 685 of 3,015. 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 City of Richland, every result from 481 to 490 of 632 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
Mar 15, 2010
Sampling point
SM1 SM1
Sample type
Routine
Lab sample
100316-043TH
Laboratory
MSDH Lab
56.5 ug/l , sample collected Mar 15, 2010, sampling point SM1 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Mar 15, 2010, sampling point SM1 Bromoform 2942 EPA method 524.2 Not recorded
3.76 ug/l , sample collected Mar 15, 2010, sampling point SM1 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Mar 15, 2010, sampling point SM1 Dibromochloromethane 2944 EPA method 524.2 Not recorded
60.26 ug/l , sample collected Mar 15, 2010, sampling point SM1 TTHM 2950 EPA method 524.2 Not recorded
Collected
Mar 8, 2010
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
100309-029CN
Laboratory
MSDH Lab
Not detected below 15 ug/l Minimum Reporting Level , sample collected Mar 8, 2010, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2008 – Dec 31, 2010
Collected
Mar 8, 2010
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
100309-028CN
Laboratory
MSDH Lab
Not detected below 15 ug/l Minimum Reporting Level , sample collected Mar 8, 2010, sampling point TF103 Cyanide 1024 EPA method QC10204001X Jan 1, 2008 – Dec 31, 2010
Collected
Mar 8, 2010
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
100309-011CN
Laboratory
MSDH Lab
Not detected below 15 ug/l Minimum Reporting Level , sample collected Mar 8, 2010, sampling point TF102 Cyanide 1024 EPA method QC10204001X Jan 1, 2008 – Dec 31, 2010
Collected
Feb 3, 2010
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
100204-020IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 3, 2010, sampling point TF103 Arsenic 1005 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.002912 mg/l , sample collected Feb 3, 2010, sampling point TF103 Barium 1010 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 3, 2010, sampling point TF103 Cadmium 1015 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.002514 mg/l , sample collected Feb 3, 2010, sampling point TF103 Chromium 1020 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.932 mg/l , sample collected Feb 3, 2010, sampling point TF103 Fluoride 1025 EPA method 380-75WE Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 3, 2010, sampling point TF103 Mercury 1035 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 3, 2010, sampling point TF103 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Feb 3, 2010, sampling point TF103 Selenium 1045 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 3, 2010, sampling point TF103 Antimony, Total 1074 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 3, 2010, sampling point TF103 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 3, 2010, sampling point TF103 Thallium, Total 1085 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Collected
Feb 3, 2010
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
100204-019IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 3, 2010, sampling point TF102 Arsenic 1005 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.000937 mg/l , sample collected Feb 3, 2010, sampling point TF102 Barium 1010 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 3, 2010, sampling point TF102 Cadmium 1015 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.003223 mg/l , sample collected Feb 3, 2010, sampling point TF102 Chromium 1020 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.749 mg/l , sample collected Feb 3, 2010, sampling point TF102 Fluoride 1025 EPA method 380-75WE Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 3, 2010, sampling point TF102 Mercury 1035 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 3, 2010, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Feb 3, 2010, sampling point TF102 Selenium 1045 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 3, 2010, sampling point TF102 Antimony, Total 1074 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 3, 2010, sampling point TF102 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 3, 2010, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Collected
Feb 3, 2010
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
100204-018IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 3, 2010, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.00085 mg/l , sample collected Feb 3, 2010, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 3, 2010, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.001875 mg/l , sample collected Feb 3, 2010, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.951 mg/l , sample collected Feb 3, 2010, sampling point TF101 Fluoride 1025 EPA method 380-75WE Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 3, 2010, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.001346 mg/l , sample collected Feb 3, 2010, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Feb 3, 2010, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 3, 2010, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 3, 2010, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 3, 2010, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Collected
Dec 14, 2009
Sampling point
SM2 SM2
Sample type
Routine
Lab sample
091215-046HA
Laboratory
MSDH Lab
0.006 mg/l , sample collected Dec 14, 2009, sampling point SM2 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.024 mg/l , sample collected Dec 14, 2009, sampling point SM2 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.027 mg/l , sample collected Dec 14, 2009, sampling point SM2 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
0.001 mg/l , sample collected Dec 14, 2009, sampling point SM2 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Dec 14, 2009, sampling point SM2 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.05 mg/l , sample collected Dec 14, 2009, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 Not recorded
Collected
Dec 14, 2009
Sampling point
SM2 SM2
Sample type
Routine
Lab sample
091215-045HA
Laboratory
MSDH Lab
0.006 mg/l , sample collected Dec 14, 2009, sampling point SM2 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.024 mg/l , sample collected Dec 14, 2009, sampling point SM2 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.027 mg/l , sample collected Dec 14, 2009, sampling point SM2 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
0.001 mg/l , sample collected Dec 14, 2009, sampling point SM2 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Dec 14, 2009, sampling point SM2 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.05 mg/l , sample collected Dec 14, 2009, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 Not recorded
Collected
Dec 14, 2009
Sampling point
SM2 SM2
Sample type
Routine
Lab sample
091215-046TH
Laboratory
MSDH Lab
35.1 ug/l , sample collected Dec 14, 2009, sampling point SM2 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 14, 2009, sampling point SM2 Bromoform 2942 EPA method 524.2 Not recorded
3.05 ug/l , sample collected Dec 14, 2009, sampling point SM2 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 14, 2009, sampling point SM2 Dibromochloromethane 2944 EPA method 524.2 Not recorded
38.15 ug/l , sample collected Dec 14, 2009, sampling point SM2 TTHM 2950 EPA method 524.2 Not recorded

Routine (10).