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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

MS0320015 , McNair-Stampley W/A #3

26 of the 55 analytes this system has been tested for have been detected at least once, across 159 samples on record.

The other 29 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 159 samples on record, detections range from August 24, 2015 to June 29, 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 McNair-Stampley W/A #3, 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 65 of 65 results Oct 26, 2015 Sep 30, 2025
Lead 1030 Inorganic Chemical 35 of 65 results Oct 26, 2015 Sep 30, 2025
TTHM 2950 Organic Chemical 17 of 23 results Sep 9, 2015 Jun 29, 2026
Bromodichloromethane 2943 Organic Chemical 12 of 17 results Sep 9, 2015 Jun 29, 2026
Dibromochloromethane 2944 Organic Chemical 12 of 17 results Sep 9, 2015 Jun 29, 2026
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 11 of 23 results Sep 9, 2015 May 19, 2025
Chloroform 2941 Organic Chemical 10 of 17 results Sep 9, 2015 Jun 29, 2026
Dichloroacetic Acid 2451 Organic Chemical 7 of 17 results Sep 9, 2015 Nov 19, 2024
Xylenes, Total 2955 Organic Chemical 6 of 26 results Aug 24, 2015 Feb 25, 2020
Trichloroacetic Acid 2452 Organic Chemical 4 of 17 results Sep 9, 2015 Nov 19, 2024
Barium 1010 Inorganic Chemical 4 of 4 results May 8, 2017 Feb 26, 2024
Fluoride 1025 Inorganic Chemical 4 of 4 results May 8, 2017 Feb 26, 2024
Nickel 1036 Inorganic Chemical 4 of 4 results May 8, 2017 Feb 26, 2024
Bromoform 2942 Organic Chemical 3 of 17 results Nov 19, 2024 Dec 31, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 3 of 3 results Sep 25, 2015 Apr 18, 2016
Sodium 1052 Inorganic Chemical 2 of 2 results Feb 9, 2022 Feb 5, 2025
Nitrate-Nitrite 1038 Inorganic Chemical 2 of 11 results Feb 20, 2018 Feb 28, 2023
Nitrate 1040 Inorganic Chemical 2 of 11 results Feb 20, 2018 Feb 28, 2023
Chromium 1020 Inorganic Chemical 2 of 4 results May 8, 2017 Mar 25, 2020
Dibromoacetic Acid 2454 Organic Chemical 2 of 17 results Sep 9, 2015 Jun 25, 2018
Combined Radium (-226 & -228) 4010 Radionuclide 2 of 3 results Sep 25, 2015 Dec 30, 2015
Monochloroacetic Acid 2450 Organic Chemical 1 of 17 results Jun 25, 2018 Jun 25, 2018
Monobromoacetic Acid 2453 Organic Chemical 1 of 17 results Jun 25, 2018 Jun 25, 2018
Selenium 1045 Inorganic Chemical 1 of 4 results May 8, 2017 May 8, 2017
Radium-228 4030 Radionuclide 1 of 3 results Dec 30, 2015 Dec 30, 2015
Radium-226 4020 Radionuclide 1 of 3 results Sep 25, 2015 Sep 25, 2015

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 159 samples, newest first — collected February 5, 2018 to June 6, 2018. The summary above covers all 159.

59 results from the 10 samples listed here: 12 detected, 47 not detected. Across the whole record it is 214 of 978. 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 McNair-Stampley W/A #3, every result from 91 to 100 of 159 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 6, 2018
Sampling point
DS000 Generated by Batch
Sample type
Routine
Lab sample
180613-040PB
Laboratory
MSDH Lab
0.0098 mg/l , sample collected Jun 6, 2018, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2018
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 6, 2018, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2018
Collected
Jun 6, 2018 01:50
Sampling point
DS000 Generated by Batch
Sample type
Routine
Lab sample
180613-035PB
Laboratory
MSDH Lab
0.018 mg/l , sample collected Jun 6, 2018 01:50, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2018
0.0035 mg/l , sample collected Jun 6, 2018 01:50, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2018
Collected
Jun 5, 2018 10:20
Sampling point
DS000 Generated by Batch
Sample type
Routine
Lab sample
180613-047PB
Laboratory
MSDH Lab
0.0287 mg/l , sample collected Jun 5, 2018 10:20, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2018
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 5, 2018 10:20, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2018
Collected
Jun 5, 2018
Sampling point
DS000 Generated by Batch
Sample type
Routine
Lab sample
180613-046PB
Laboratory
MSDH Lab
0.108 mg/l , sample collected Jun 5, 2018, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2018
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 5, 2018, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2018
Collected
Jun 5, 2018 10:30
Sampling point
DS000 Generated by Batch
Sample type
Routine
Lab sample
180613-045PB
Laboratory
MSDH Lab
0.0072 mg/l , sample collected Jun 5, 2018 10:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2018
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 5, 2018 10:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2018
Collected
Jun 5, 2018 03:00
Sampling point
DS000 Generated by Batch
Sample type
Routine
Lab sample
180613-039PB
Laboratory
MSDH Lab
0.0229 mg/l , sample collected Jun 5, 2018 03:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2018
0.0018 mg/l , sample collected Jun 5, 2018 03:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2018
Collected
Jun 5, 2018 10:40
Sampling point
DS000 Generated by Batch
Sample type
Routine
Lab sample
180613-038PB
Laboratory
MSDH Lab
0.0284 mg/l , sample collected Jun 5, 2018 10:40, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2018
0.0011 mg/l , sample collected Jun 5, 2018 10:40, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2018
Collected
May 2, 2018 03:00
Sampling point
TF080 Sunnyside Rd Plant
Sample type
Routine
Lab sample
180503-019VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 2, 2018 03:00, sampling point TF080 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 2, 2018 03:00, sampling point TF080 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 2, 2018 03:00, sampling point TF080 Xylenes, Total 2955 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 2, 2018 03:00, sampling point TF080 Dichloromethane 2964 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 2, 2018 03:00, sampling point TF080 O-Dichlorobenzene 2968 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 2, 2018 03:00, sampling point TF080 P-Dichlorobenzene 2969 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 2, 2018 03:00, sampling point TF080 Vinyl Chloride 2976 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 2, 2018 03:00, sampling point TF080 1,1-Dichloroethylene 2977 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 2, 2018 03:00, sampling point TF080 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 2, 2018 03:00, sampling point TF080 1,2-Dichloroethane 2980 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 2, 2018 03:00, sampling point TF080 1,1,1-Trichloroethane 2981 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 2, 2018 03:00, sampling point TF080 Carbon Tetrachloride 2982 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 2, 2018 03:00, sampling point TF080 1,2-Dichloropropane 2983 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 2, 2018 03:00, sampling point TF080 Trichloroethylene 2984 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 2, 2018 03:00, sampling point TF080 1,1,2-Trichloroethane 2985 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 2, 2018 03:00, sampling point TF080 Tetrachloroethylene 2987 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 2, 2018 03:00, sampling point TF080 Chlorobenzene 2989 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 2, 2018 03:00, sampling point TF080 Benzene 2990 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 2, 2018 03:00, sampling point TF080 Toluene 2991 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 2, 2018 03:00, sampling point TF080 Ethylbenzene 2992 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 2, 2018 03:00, sampling point TF080 Styrene 2996 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Collected
Feb 20, 2018 14:20
Sampling point
TF080 Sunnyside Rd Plant
Sample type
Routine
Lab sample
180221-125NI
Laboratory
MSDH Lab
0.16 mg/l , sample collected Feb 20, 2018 14:20, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2018 – Dec 31, 2018
0.16 mg/l , sample collected Feb 20, 2018 14:20, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2018 – Dec 31, 2018
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 20, 2018 14:20, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2018 – Dec 31, 2018
Collected
Feb 5, 2018 02:30
Sampling point
TF080 Sunnyside Rd Plant
Sample type
Routine
Lab sample
180206-017VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 5, 2018 02:30, sampling point TF080 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2018 – Mar 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 5, 2018 02:30, sampling point TF080 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2018 – Mar 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 5, 2018 02:30, sampling point TF080 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2018 – Mar 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 5, 2018 02:30, sampling point TF080 Dichloromethane 2964 EPA method 524.2 Jan 1, 2018 – Mar 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 5, 2018 02:30, sampling point TF080 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2018 – Mar 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 5, 2018 02:30, sampling point TF080 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2018 – Mar 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 5, 2018 02:30, sampling point TF080 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2018 – Mar 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 5, 2018 02:30, sampling point TF080 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2018 – Mar 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 5, 2018 02:30, sampling point TF080 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2018 – Mar 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 5, 2018 02:30, sampling point TF080 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2018 – Mar 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 5, 2018 02:30, sampling point TF080 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2018 – Mar 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 5, 2018 02:30, sampling point TF080 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2018 – Mar 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 5, 2018 02:30, sampling point TF080 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2018 – Mar 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 5, 2018 02:30, sampling point TF080 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2018 – Mar 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 5, 2018 02:30, sampling point TF080 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2018 – Mar 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 5, 2018 02:30, sampling point TF080 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2018 – Mar 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 5, 2018 02:30, sampling point TF080 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2018 – Mar 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 5, 2018 02:30, sampling point TF080 Benzene 2990 EPA method 524.2 Jan 1, 2018 – Mar 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 5, 2018 02:30, sampling point TF080 Toluene 2991 EPA method 524.2 Jan 1, 2018 – Mar 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 5, 2018 02:30, sampling point TF080 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2018 – Mar 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 5, 2018 02:30, sampling point TF080 Styrene 2996 EPA method 524.2 Jan 1, 2018 – Mar 31, 2018

Routine (10).