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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

MS0320010 , McNair-Stampley W/A #2

33 of the 71 analytes this system has been tested for have been detected at least once, across 171 samples on record.

The other 38 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 171 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 #2, 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 92 of 92 results Oct 20, 2008 Aug 31, 2023
Lead 1030 Inorganic Chemical 73 of 92 results Oct 20, 2008 Aug 31, 2023
Barium 1010 Inorganic Chemical 10 of 10 results Sep 24, 2003 Mar 5, 2025
Fluoride 1025 Inorganic Chemical 8 of 11 results Sep 24, 2003 Mar 5, 2025
TTHM 2950 Organic Chemical 7 of 14 results Oct 24, 2007 Jun 29, 2026
Chromium 1020 Inorganic Chemical 5 of 10 results Mar 23, 2005 Mar 25, 2019
Bromodichloromethane 2943 Organic Chemical 4 of 13 results Dec 31, 2025 Jun 29, 2026
Dibromochloromethane 2944 Organic Chemical 4 of 13 results Dec 31, 2025 Jun 29, 2026
Chloroform 2941 Organic Chemical 3 of 13 results Aug 26, 2012 Jun 29, 2026
Sodium 1052 Inorganic Chemical 3 of 3 results Apr 26, 2017 Feb 5, 2025
Sulfate 1055 Inorganic Chemical 3 of 3 results Sep 24, 2003 Apr 26, 2017
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 3 of 13 results Sep 4, 2007 Aug 26, 2012
Bromoform 2942 Organic Chemical 2 of 13 results Dec 31, 2025 Dec 31, 2025
Nitrite 1041 Inorganic Chemical 2 of 21 results Aug 10, 2005 Mar 26, 2024
Nickel 1036 Inorganic Chemical 2 of 10 results Sep 24, 2003 Jan 14, 2009
Calcium 1016 Inorganic Chemical 1 of 1 result Apr 26, 2017 Apr 26, 2017
Chloride 1017 Inorganic Chemical 1 of 1 result Apr 26, 2017 Apr 26, 2017
Iron 1028 Inorganic Chemical 1 of 1 result Apr 26, 2017 Apr 26, 2017
Magnesium 1031 Inorganic Chemical 1 of 1 result Apr 26, 2017 Apr 26, 2017
Manganese 1032 Inorganic Chemical 1 of 1 result Apr 26, 2017 Apr 26, 2017
Potassium 1042 Inorganic Chemical 1 of 1 result Apr 26, 2017 Apr 26, 2017
Residue, Total, Filterable 1057 Water Quality 1 of 1 result Apr 26, 2017 Apr 26, 2017
Alkalinity, Caco3 Stability 1067 Water Quality 1 of 1 result Apr 26, 2017 Apr 26, 2017
Color 1905 Water Quality 1 of 1 result Apr 26, 2017 Apr 26, 2017
Hardness, Total (As Caco3) 1915 Water Quality 1 of 1 result Apr 26, 2017 Apr 26, 2017
Alkalinity, Total 1927 Water Quality 1 of 1 result Apr 26, 2017 Apr 26, 2017
Iron, Field Result FEFD Inorganic Chemical 1 of 1 result Apr 26, 2017 Apr 26, 2017
Calculated Sodium NACA Water Quality 1 of 1 result Apr 26, 2017 Apr 26, 2017
PH, Field Result PHFD Water Quality 1 of 1 result Apr 26, 2017 Apr 26, 2017
Monochloroacetic Acid 2450 Organic Chemical 1 of 11 results Aug 26, 2012 Aug 26, 2012
Dichloroacetic Acid 2451 Organic Chemical 1 of 11 results Aug 26, 2012 Aug 26, 2012
Trichloroacetic Acid 2452 Organic Chemical 1 of 11 results Aug 26, 2012 Aug 26, 2012
Dibromoacetic Acid 2454 Organic Chemical 1 of 11 results Aug 26, 2012 Aug 26, 2012

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 151–160 of 171 samples, newest first — collected March 23, 2005 to May 21, 2008. The summary above covers all 171.

61 results from the 10 samples listed here: 7 detected, 54 not detected. Across the whole record it is 239 of 694. 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 #2, every result from 151 to 160 of 171 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
May 21, 2008
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
080522-009VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 21, 2008, sampling point TF101 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 21, 2008, sampling point TF101 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 21, 2008, sampling point TF101 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 21, 2008, sampling point TF101 Dichloromethane 2964 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 21, 2008, sampling point TF101 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 21, 2008, sampling point TF101 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 21, 2008, sampling point TF101 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 21, 2008, sampling point TF101 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 21, 2008, sampling point TF101 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 21, 2008, sampling point TF101 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 21, 2008, sampling point TF101 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 21, 2008, sampling point TF101 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 21, 2008, sampling point TF101 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 21, 2008, sampling point TF101 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 21, 2008, sampling point TF101 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 21, 2008, sampling point TF101 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 21, 2008, sampling point TF101 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 21, 2008, sampling point TF101 Benzene 2990 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 21, 2008, sampling point TF101 Toluene 2991 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 21, 2008, sampling point TF101 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 21, 2008, sampling point TF101 Styrene 2996 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Collected
Oct 24, 2007
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
071025-006TH
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 24, 2007, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 24, 2007, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 24, 2007, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 24, 2007, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
0 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. The agency recorded a value but no unit of measure for it. The unit is NOT inferable from the analyte: many analytes are reported in more than one unit — TTHM and HAA5 in both MG/L and UG/L — so there is no per-analyte default to fall back on. The number is published as it stands and must not be compared to a limit. The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Oct 24, 2007, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2005 – Dec 31, 2007
Collected
Sep 4, 2007
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
070905-005HA
Laboratory
MSDH Lab
0.0002 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Sep 4, 2007, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2005 – Dec 31, 2007
Collected
May 9, 2007
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
070510-036NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected May 9, 2007, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2007 – Dec 31, 2007
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected May 9, 2007, sampling point TF101 Nitrate 1040 EPA method 353.2 Jan 1, 2007 – Dec 31, 2007
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected May 9, 2007, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2007 – Dec 31, 2007
Collected
Jul 10, 2006
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
060711-121NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jul 10, 2006, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jul 10, 2006, sampling point TF101 Nitrate 1040 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jul 10, 2006, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Collected
Feb 27, 2006
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
060228-007CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Feb 27, 2006, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2005 – Dec 31, 2007
Collected
Feb 13, 2006
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
060214-141IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.012596 mg/l , sample collected Feb 13, 2006, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF101 Fluoride 1025 EPA method 380-75WE Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF101 Uranium-238 4009 Not recorded
Collected
Aug 10, 2005
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
050811-091NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Aug 10, 2005, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Aug 10, 2005, sampling point TF101 Nitrate 1040 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
0.02 mg/l , sample collected Aug 10, 2005, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Collected
Mar 23, 2005
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
050324-027CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Mar 23, 2005, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2005 – Dec 31, 2007
Collected
Mar 23, 2005
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
050324-043IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 23, 2005, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.012245 mg/l , sample collected Mar 23, 2005, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Mar 23, 2005, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.000853 mg/l , sample collected Mar 23, 2005, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.141036 mg/l , sample collected Mar 23, 2005, sampling point TF101 Fluoride 1025 EPA method 380-75WE Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected Mar 23, 2005, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 23, 2005, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 23, 2005, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 23, 2005, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Mar 23, 2005, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 23, 2005, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007

Routine (10).