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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 11–20 of 281 samples, newest first — collected August 12, 2024 to March 3, 2025. The summary above covers all 281.

38 results from the 10 samples listed here: 15 detected, 23 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.

We withheld the location of 4 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.

Chemical and radiological sample results for R D Morrow Power Plant, every result from 11 to 20 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
Mar 3, 2025 11:25
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
NI-250304-018
Laboratory
MSDH Lab
0.123 mg/l , sample collected Mar 3, 2025 11:25, sampling point TF104 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
0.123 mg/l , sample collected Mar 3, 2025 11:25, sampling point TF104 Nitrate 1040 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 3, 2025 11:25, sampling point TF104 Nitrite 1041 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Collected
Mar 3, 2025 11:15
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
NI-250304-017
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 3, 2025 11:15, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 3, 2025 11:15, sampling point TF102 Nitrate 1040 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 3, 2025 11:15, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Collected
Feb 25, 2025 13:05
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
IN-250226-027
Laboratory
MSDH Lab
0.0008 mg/l , sample collected Feb 25, 2025 13:05, sampling point TF104 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0055 mg/l , sample collected Feb 25, 2025 13:05, sampling point TF104 Barium 1010 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 25, 2025 13:05, sampling point TF104 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 25, 2025 13:05, sampling point TF104 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 25, 2025 13:05, sampling point TF104 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 25, 2025 13:05, sampling point TF104 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 25, 2025 13:05, sampling point TF104 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Feb 25, 2025 13:05, sampling point TF104 Selenium 1045 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 25, 2025 13:05, sampling point TF104 Antimony, Total 1074 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 25, 2025 13:05, sampling point TF104 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 25, 2025 13:05, sampling point TF104 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Feb 25, 2025 12:55
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
IN-250226-026
Laboratory
MSDH Lab
0.0008 mg/l , sample collected Feb 25, 2025 12:55, sampling point TF102 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0079 mg/l , sample collected Feb 25, 2025 12:55, sampling point TF102 Barium 1010 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 25, 2025 12:55, sampling point TF102 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 25, 2025 12:55, sampling point TF102 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 25, 2025 12:55, sampling point TF102 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 25, 2025 12:55, sampling point TF102 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 25, 2025 12:55, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Feb 25, 2025 12:55, sampling point TF102 Selenium 1045 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 25, 2025 12:55, sampling point TF102 Antimony, Total 1074 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 25, 2025 12:55, sampling point TF102 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 25, 2025 12:55, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Feb 10, 2025 11:00
Sampling point
SMD Site8 Warehouse-304 Old Okahola School R
Sample type
Routine
Lab sample
HA-250211-006
Laboratory
MSDH Lab
4.63 ug/l , sample collected Feb 10, 2025 11:00, sampling point SMD Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2023 – Dec 31, 2025
Collected
Feb 10, 2025 11:00
Sampling point
SMD Site8 Warehouse-304 Old Okahola School R
Sample type
Routine
Lab sample
TH-250211-006
Laboratory
MSDH Lab
2.15 ug/l , sample collected Feb 10, 2025 11:00, sampling point SMD TTHM 2950 EPA method 524.2 Jan 1, 2023 – Dec 31, 2025
Collected
Aug 12, 2024 07:00
Sampling point
LC0001 Location withheld
Sample type
Routine
Lab sample
PB-240813-031
Laboratory
MSDH Lab
0.28 mg/l , sample collected Aug 12, 2024 07:00, sampling point LC0001 Copper, Free 1022 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
0.6 ug/l , sample collected Aug 12, 2024 07:00, sampling point LC0001 Lead 1030 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Collected
Aug 12, 2024 07:20
Sampling point
LC0005 Location withheld
Sample type
Routine
Lab sample
PB-240813-035
Laboratory
MSDH Lab
0.0571 mg/l , sample collected Aug 12, 2024 07:20, sampling point LC0005 Copper, Free 1022 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
0.8 ug/l , sample collected Aug 12, 2024 07:20, sampling point LC0005 Lead 1030 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Collected
Aug 12, 2024 07:15
Sampling point
LC0004 Location withheld
Sample type
Routine
Lab sample
PB-240813-034
Laboratory
MSDH Lab
0.303 mg/l , sample collected Aug 12, 2024 07:15, sampling point LC0004 Copper, Free 1022 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
1.2 ug/l , sample collected Aug 12, 2024 07:15, sampling point LC0004 Lead 1030 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Collected
Aug 12, 2024 07:10
Sampling point
LC0003 Location withheld
Sample type
Routine
Lab sample
PB-240813-033
Laboratory
MSDH Lab
0.0172 mg/l , sample collected Aug 12, 2024 07:10, sampling point LC0003 Copper, Free 1022 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 12, 2024 07:10, sampling point LC0003 Lead 1030 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024

Routine (10).