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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 501–510 of 632 samples, newest first — collected May 18, 2009 to August 31, 2009. The summary above covers all 632.

60 results from the 10 samples listed here: 16 detected, 44 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 501 to 510 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
Aug 31, 2009
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
090901-015TH
Laboratory
MSDH Lab
70.8 ug/l , sample collected Aug 31, 2009, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 31, 2009, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
6.05 ug/l , sample collected Aug 31, 2009, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 31, 2009, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
76.85 ug/l , sample collected Aug 31, 2009, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Collected
Aug 17, 2009
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
090818-025VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 17, 2009, sampling point TF101 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 17, 2009, sampling point TF101 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 17, 2009, sampling point TF101 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 17, 2009, sampling point TF101 Dichloromethane 2964 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 17, 2009, sampling point TF101 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 17, 2009, sampling point TF101 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 17, 2009, sampling point TF101 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 17, 2009, sampling point TF101 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 17, 2009, sampling point TF101 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 17, 2009, sampling point TF101 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 17, 2009, sampling point TF101 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 17, 2009, sampling point TF101 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 17, 2009, sampling point TF101 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 17, 2009, sampling point TF101 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 17, 2009, sampling point TF101 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 17, 2009, sampling point TF101 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 17, 2009, sampling point TF101 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 17, 2009, sampling point TF101 Benzene 2990 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 17, 2009, sampling point TF101 Toluene 2991 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 17, 2009, sampling point TF101 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 17, 2009, sampling point TF101 Styrene 2996 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Collected
Jun 15, 2009
Sampling point
SM2 SM2
Sample type
Routine
Lab sample
090616-048TH
Laboratory
MSDH Lab
50.5 ug/l , sample collected Jun 15, 2009, sampling point SM2 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 15, 2009, sampling point SM2 Bromoform 2942 EPA method 524.2 Not recorded
3.77 ug/l , sample collected Jun 15, 2009, sampling point SM2 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 15, 2009, sampling point SM2 Dibromochloromethane 2944 EPA method 524.2 Not recorded
54.27 ug/l , sample collected Jun 15, 2009, sampling point SM2 TTHM 2950 EPA method 524.2 Not recorded
Collected
Jun 15, 2009
Sampling point
SM1 SM1
Sample type
Routine
Lab sample
090616-047TH
Laboratory
MSDH Lab
65.6 ug/l , sample collected Jun 15, 2009, sampling point SM1 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 15, 2009, sampling point SM1 Bromoform 2942 EPA method 524.2 Not recorded
4.7 ug/l , sample collected Jun 15, 2009, sampling point SM1 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 15, 2009, sampling point SM1 Dibromochloromethane 2944 EPA method 524.2 Not recorded
70.3 ug/l , sample collected Jun 15, 2009, sampling point SM1 TTHM 2950 EPA method 524.2 Not recorded
Collected
Jun 15, 2009
Sampling point
SM2 SM2
Sample type
Routine
Lab sample
090616-050HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Jun 15, 2009, sampling point SM2 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.016 mg/l , sample collected Jun 15, 2009, sampling point SM2 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.018 mg/l , sample collected Jun 15, 2009, sampling point SM2 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
0.001 mg/l , sample collected Jun 15, 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 Jun 15, 2009, sampling point SM2 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.03 mg/l , sample collected Jun 15, 2009, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 Not recorded
Collected
Jun 15, 2009
Sampling point
SM1 SM1
Sample type
Routine
Lab sample
090616-049HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Jun 15, 2009, sampling point SM1 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.02 mg/l , sample collected Jun 15, 2009, sampling point SM1 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.021 mg/l , sample collected Jun 15, 2009, sampling point SM1 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jun 15, 2009, sampling point SM1 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jun 15, 2009, sampling point SM1 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.04 mg/l , sample collected Jun 15, 2009, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 Not recorded
Collected
May 18, 2009
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
090519-128NI
Laboratory
MSDH Lab
Not detected below 0.25 mg/l Minimum Reporting Level , sample collected May 18, 2009, sampling point TF103 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.2 mg/l Minimum Reporting Level , sample collected May 18, 2009, sampling point TF103 Nitrate 1040 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected May 18, 2009, sampling point TF103 Nitrite 1041 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Collected
May 18, 2009
Sampling point
TF105
Sample type
Routine
Lab sample
090519-127NI
Laboratory
MSDH Lab
Not detected below 0.25 mg/l Minimum Reporting Level , sample collected May 18, 2009, sampling point TF105 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.2 mg/l Minimum Reporting Level , sample collected May 18, 2009, sampling point TF105 Nitrate 1040 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected May 18, 2009, sampling point TF105 Nitrite 1041 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Collected
May 18, 2009
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
090519-126NI
Laboratory
MSDH Lab
Not detected below 0.25 mg/l Minimum Reporting Level , sample collected May 18, 2009, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.2 mg/l Minimum Reporting Level , sample collected May 18, 2009, sampling point TF101 Nitrate 1040 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected May 18, 2009, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Collected
May 18, 2009
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
090519-125NI
Laboratory
MSDH Lab
Not detected below 0.25 mg/l Minimum Reporting Level , sample collected May 18, 2009, sampling point TF102 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.2 mg/l Minimum Reporting Level , sample collected May 18, 2009, sampling point TF102 Nitrate 1040 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected May 18, 2009, sampling point TF102 Nitrite 1041 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009

Routine (10).