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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

MS0370014 , R D Morrow Power Plant

23 of the 53 analytes this system has been tested for have been detected at least once, across 281 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 281 samples on record, detections range from October 6, 2003 to February 3, 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 R D Morrow Power Plant, 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 42 of 42 results Sep 21, 2004 Aug 12, 2024
Barium 1010 Inorganic Chemical 39 of 39 results Oct 6, 2003 Dec 22, 2025
Arsenic 1005 Inorganic Chemical 38 of 39 results Oct 6, 2003 Dec 22, 2025
Nickel 1036 Inorganic Chemical 27 of 39 results Oct 6, 2003 Dec 22, 2025
Lead 1030 Inorganic Chemical 24 of 42 results Sep 21, 2004 Aug 12, 2024
Fluoride 1025 Inorganic Chemical 20 of 39 results Oct 6, 2003 Dec 22, 2025
Nitrate-Nitrite 1038 Inorganic Chemical 19 of 88 results Nov 13, 2007 Feb 3, 2026
Nitrate 1040 Inorganic Chemical 19 of 88 results Nov 13, 2007 Feb 3, 2026
Chromium 1020 Inorganic Chemical 12 of 39 results Mar 3, 2004 Dec 22, 2025
Sulfate 1055 Inorganic Chemical 8 of 8 results Oct 6, 2003 Mar 3, 2004
Xylenes, Total 2955 Organic Chemical 7 of 43 results Sep 18, 2014 Sep 14, 2021
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 5 of 7 results Jun 8, 2010 Feb 10, 2025
TTHM 2950 Organic Chemical 4 of 7 results Aug 15, 2007 Feb 10, 2025
Sodium 1052 Inorganic Chemical 4 of 4 results Feb 14, 2022 Feb 14, 2022
Dichloroacetic Acid 2451 Organic Chemical 4 of 4 results Jun 8, 2010 Aug 27, 2018
Trichloroacetic Acid 2452 Organic Chemical 2 of 4 results Aug 1, 2013 Aug 27, 2018
Dibromoacetic Acid 2454 Organic Chemical 2 of 4 results Jun 8, 2010 Jul 6, 2015
Chloroform 2941 Organic Chemical 2 of 4 results Jun 8, 2010 Aug 1, 2013
Dibromochloromethane 2944 Organic Chemical 2 of 4 results Aug 15, 2007 Jun 8, 2010
Bromoform 2942 Organic Chemical 1 of 4 results Jun 8, 2010 Jun 8, 2010
Bromodichloromethane 2943 Organic Chemical 1 of 4 results Jun 8, 2010 Jun 8, 2010
Dichloromethane 2964 Organic Chemical 1 of 43 results Aug 12, 2004 Aug 12, 2004
Cyanide 1024 Inorganic Chemical 1 of 43 results Nov 24, 2003 Nov 24, 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 181–190 of 281 samples, newest first — collected November 9, 2009 to June 8, 2010. The summary above covers all 281.

59 results from the 10 samples listed here: 24 detected, 35 not detected. Across the whole record it is 284 of 1,796. 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 R D Morrow Power Plant, every result from 181 to 190 of 281 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
Jun 8, 2010
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
100609-006HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Jun 8, 2010, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.002 mg/l , sample collected Jun 8, 2010, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jun 8, 2010, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jun 8, 2010, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
0.002 mg/l , sample collected Jun 8, 2010, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0 mg/l This result is recorded as a detection, and the figure the agency wrote — "0.00" — is zero to the precision it was written to. Read the zero as "smaller than the written figure resolves", not as "none present". SDWIS holds a separate numeric concentration that Drinking Water Watch does not publish, so this endpoint does not carry it either; no more precise magnitude is available here. , sample collected Jun 8, 2010, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2008 – Dec 31, 2010
Collected
Jun 8, 2010
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
100609-006TH
Laboratory
MSDH Lab
1.35 ug/l , sample collected Jun 8, 2010, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
1.59 ug/l , sample collected Jun 8, 2010, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
1.09 ug/l , sample collected Jun 8, 2010, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
1.93 ug/l , sample collected Jun 8, 2010, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
5.96 ug/l , sample collected Jun 8, 2010, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2008 – Dec 31, 2010
Collected
May 3, 2010
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
100504-019CN
Laboratory
MSDH Lab
Not detected below 15 ug/l Minimum Reporting Level , sample collected May 3, 2010, sampling point TF104 Cyanide 1024 EPA method QC10204001X Jan 1, 2008 – Dec 31, 2010
Collected
May 3, 2010
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
100504-018CN
Laboratory
MSDH Lab
Not detected below 15 ug/l Minimum Reporting Level , sample collected May 3, 2010, sampling point TF103 Cyanide 1024 EPA method QC10204001X Jan 1, 2008 – Dec 31, 2010
Collected
May 3, 2010
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
100504-017CN
Laboratory
MSDH Lab
Not detected below 15 ug/l Minimum Reporting Level , sample collected May 3, 2010, sampling point TF102 Cyanide 1024 EPA method QC10204001X Jan 1, 2008 – Dec 31, 2010
Collected
May 3, 2010
Sampling point
TF105 Treatment Plant T105
Sample type
Routine
Lab sample
100504-016CN
Laboratory
MSDH Lab
Not detected below 15 ug/l Minimum Reporting Level , sample collected May 3, 2010, sampling point TF105 Cyanide 1024 EPA method QC10204001X Jan 1, 2008 – Dec 31, 2010
Collected
Nov 9, 2009
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
091110-020IN
Laboratory
MSDH Lab
0.000794 mg/l , sample collected Nov 9, 2009, sampling point TF103 Arsenic 1005 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.000606 mg/l , sample collected Nov 9, 2009, 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 Nov 9, 2009, sampling point TF103 Cadmium 1015 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 9, 2009, sampling point TF103 Chromium 1020 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.117 mg/l , sample collected Nov 9, 2009, 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 Nov 9, 2009, sampling point TF103 Mercury 1035 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.002918 mg/l , sample collected Nov 9, 2009, sampling point TF103 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Nov 9, 2009, 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 Nov 9, 2009, 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 Nov 9, 2009, 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 Nov 9, 2009, sampling point TF103 Thallium, Total 1085 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Collected
Nov 9, 2009
Sampling point
TF105 Treatment Plant T105
Sample type
Routine
Lab sample
091110-019IN
Laboratory
MSDH Lab
0.000786 mg/l , sample collected Nov 9, 2009, sampling point TF105 Arsenic 1005 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.000745 mg/l , sample collected Nov 9, 2009, sampling point TF105 Barium 1010 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 9, 2009, sampling point TF105 Cadmium 1015 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 9, 2009, sampling point TF105 Chromium 1020 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.111 mg/l , sample collected Nov 9, 2009, sampling point TF105 Fluoride 1025 EPA method 380-75WE Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 9, 2009, sampling point TF105 Mercury 1035 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.001086 mg/l , sample collected Nov 9, 2009, sampling point TF105 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Nov 9, 2009, sampling point TF105 Selenium 1045 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 9, 2009, sampling point TF105 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 Nov 9, 2009, sampling point TF105 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 Nov 9, 2009, sampling point TF105 Thallium, Total 1085 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Collected
Nov 9, 2009
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
091110-018IN
Laboratory
MSDH Lab
0.000785 mg/l , sample collected Nov 9, 2009, sampling point TF102 Arsenic 1005 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.000732 mg/l , sample collected Nov 9, 2009, 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 Nov 9, 2009, sampling point TF102 Cadmium 1015 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 9, 2009, sampling point TF102 Chromium 1020 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.102 mg/l , sample collected Nov 9, 2009, 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 Nov 9, 2009, sampling point TF102 Mercury 1035 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.001288 mg/l , sample collected Nov 9, 2009, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Nov 9, 2009, 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 Nov 9, 2009, 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 Nov 9, 2009, 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 Nov 9, 2009, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Collected
Nov 9, 2009
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
091110-017IN
Laboratory
MSDH Lab
0.000828 mg/l , sample collected Nov 9, 2009, sampling point TF104 Arsenic 1005 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.001146 mg/l , sample collected Nov 9, 2009, sampling point TF104 Barium 1010 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 9, 2009, sampling point TF104 Cadmium 1015 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 9, 2009, sampling point TF104 Chromium 1020 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.109 mg/l , sample collected Nov 9, 2009, sampling point TF104 Fluoride 1025 EPA method 380-75WE Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 9, 2009, sampling point TF104 Mercury 1035 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.001369 mg/l , sample collected Nov 9, 2009, sampling point TF104 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Nov 9, 2009, sampling point TF104 Selenium 1045 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 9, 2009, sampling point TF104 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 Nov 9, 2009, sampling point TF104 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 Nov 9, 2009, sampling point TF104 Thallium, Total 1085 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010

Routine (10).