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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

MS0320003 , McNair-Stampley W/A #1

15 of the 57 analytes this system has been tested for have been detected at least once, across 143 samples on record.

The other 42 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 143 samples on record, detections range from September 24, 2003 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 #1, 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 53 of 53 results Aug 6, 2008 Aug 31, 2023
Lead 1030 Inorganic Chemical 48 of 53 results Aug 6, 2008 Aug 31, 2023
Barium 1010 Inorganic Chemical 10 of 10 results Sep 24, 2003 Mar 5, 2025
TTHM 2950 Organic Chemical 7 of 20 results Sep 4, 2007 Jun 29, 2026
Chromium 1020 Inorganic Chemical 5 of 10 results Sep 24, 2003 Apr 6, 2015
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 5 results Dec 13, 2011 Jul 20, 2012
Bromodichloromethane 2943 Organic Chemical 4 of 15 results Dec 31, 2025 Jun 29, 2026
Dibromochloromethane 2944 Organic Chemical 4 of 15 results Dec 31, 2025 Jun 29, 2026
Fluoride 1025 Inorganic Chemical 4 of 11 results Feb 25, 2004 Mar 5, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 4 of 19 results Sep 27, 2007 May 10, 2023
Nickel 1036 Inorganic Chemical 4 of 10 results Sep 24, 2003 May 18, 2022
Chloroform 2941 Organic Chemical 3 of 15 results Oct 8, 2008 Jun 29, 2026
Sodium 1052 Inorganic Chemical 2 of 2 results Feb 9, 2022 Feb 5, 2025
Sulfate 1055 Inorganic Chemical 2 of 2 results Sep 24, 2003 Feb 25, 2004
Bromoform 2942 Organic Chemical 1 of 15 results Dec 31, 2025 Dec 31, 2025

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 21–30 of 143 samples, newest first — collected May 10, 2023 to August 31, 2023. The summary above covers all 143.

18 results from the 10 samples listed here: 17 detected, 1 not detected. Across the whole record it is 156 of 631. 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 #1, every result from 21 to 30 of 143 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, 2023 07:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-230901-007
Laboratory
MSDH Lab
0.17 mg/l , sample collected Aug 31, 2023 07:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.8 ug/l , sample collected Aug 31, 2023 07:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 31, 2023 03:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-230901-004
Laboratory
MSDH Lab
0.338 mg/l , sample collected Aug 31, 2023 03:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
1.2 ug/l , sample collected Aug 31, 2023 03:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 31, 2023 06:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-230901-003
Laboratory
MSDH Lab
0.0156 mg/l , sample collected Aug 31, 2023 06:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 31, 2023 06:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 30, 2023 06:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-230901-011
Laboratory
MSDH Lab
0.0823 mg/l , sample collected Aug 30, 2023 06:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
3 ug/l , sample collected Aug 30, 2023 06:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 30, 2023 07:35
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-230901-008
Laboratory
MSDH Lab
0.0329 mg/l , sample collected Aug 30, 2023 07:35, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.6 ug/l , sample collected Aug 30, 2023 07:35, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 30, 2023 07:15
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-230901-006
Laboratory
MSDH Lab
0.52 mg/l , sample collected Aug 30, 2023 07:15, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.6 ug/l , sample collected Aug 30, 2023 07:15, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 30, 2023 04:45
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-230901-005
Laboratory
MSDH Lab
0.245 mg/l , sample collected Aug 30, 2023 04:45, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
1.9 ug/l , sample collected Aug 30, 2023 04:45, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 23, 2023 07:03
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-230829-001
Laboratory
MSDH Lab
0.024 mg/l , sample collected Aug 23, 2023 07:03, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.7 ug/l , sample collected Aug 23, 2023 07:03, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
May 10, 2023 12:45
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
HA-230511-012
Laboratory
MSDH Lab
2.5 ug/l , sample collected May 10, 2023 12:45, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Not recorded
Collected
May 10, 2023 12:40
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
TH-230511-012
Laboratory
MSDH Lab
2.53 ug/l , sample collected May 10, 2023 12:40, sampling point MRT000 TTHM 2950 EPA method 524.2 Not recorded

Routine (10).