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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

MS0820027 , Midway W/A #2

32 of the 70 analytes this system has been tested for have been detected at least once, across 277 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 277 samples on record, detections range from November 5, 2003 to April 22, 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 Midway 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
TTHM 2950 Organic Chemical 75 of 82 results Sep 22, 2004 Apr 22, 2026
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 74 of 81 results Sep 22, 2004 Apr 22, 2026
Copper, Free 1022 Inorganic Chemical 60 of 60 results Aug 23, 2007 Sep 30, 2024
Lead 1030 Inorganic Chemical 53 of 60 results Aug 23, 2007 Sep 30, 2024
Chloroform 2941 Organic Chemical 43 of 45 results Oct 4, 2006 Apr 22, 2026
Bromodichloromethane 2943 Organic Chemical 41 of 45 results Oct 4, 2006 Sep 25, 2024
Trichloroacetic Acid 2452 Organic Chemical 38 of 40 results Feb 25, 2008 Apr 22, 2026
Dichloroacetic Acid 2451 Organic Chemical 37 of 40 results Feb 25, 2008 Apr 22, 2026
Fluoride 1025 Inorganic Chemical 11 of 11 results Nov 5, 2003 May 9, 2025
Barium 1010 Inorganic Chemical 10 of 10 results Nov 5, 2003 May 9, 2025
Monochloroacetic Acid 2450 Organic Chemical 9 of 40 results Feb 3, 2009 Nov 2, 2016
Chromium 1020 Inorganic Chemical 8 of 10 results Apr 5, 2004 May 9, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 5 results Dec 12, 2011 Jul 17, 2012
Sodium 1052 Inorganic Chemical 3 of 3 results Sep 27, 2017 Mar 28, 2023
Dibromochloromethane 2944 Organic Chemical 2 of 45 results Jan 8, 2024 Jan 8, 2024
Monobromoacetic Acid 2453 Organic Chemical 2 of 40 results Nov 9, 2009 Dec 18, 2017
Calcium 1016 Inorganic Chemical 1 of 1 result Sep 27, 2017 Sep 27, 2017
Iron 1028 Inorganic Chemical 1 of 1 result Sep 27, 2017 Sep 27, 2017
Magnesium 1031 Inorganic Chemical 1 of 1 result Sep 27, 2017 Sep 27, 2017
Manganese 1032 Inorganic Chemical 1 of 1 result Sep 27, 2017 Sep 27, 2017
Potassium 1042 Inorganic Chemical 1 of 1 result Sep 27, 2017 Sep 27, 2017
Residue, Total, Filterable 1057 Water Quality 1 of 1 result Sep 27, 2017 Sep 27, 2017
Alkalinity, Caco3 Stability 1067 Water Quality 1 of 1 result Sep 27, 2017 Sep 27, 2017
Color 1905 Water Quality 1 of 1 result Sep 27, 2017 Sep 27, 2017
Hardness, Total (As Caco3) 1915 Water Quality 1 of 1 result Sep 27, 2017 Sep 27, 2017
Alkalinity, Total 1927 Water Quality 1 of 1 result Sep 27, 2017 Sep 27, 2017
Calculated Sodium NACA Water Quality 1 of 1 result Sep 27, 2017 Sep 27, 2017
PH, Field Result PHFD Water Quality 1 of 1 result Sep 27, 2017 Sep 27, 2017
Arsenic 1005 Inorganic Chemical 1 of 10 results May 10, 2010 May 10, 2010
Nickel 1036 Inorganic Chemical 1 of 10 results May 10, 2010 May 10, 2010
Dibromoacetic Acid 2454 Organic Chemical 1 of 40 results Nov 5, 2008 Nov 5, 2008
Sulfate 1055 Inorganic Chemical 1 of 3 results Nov 5, 2003 Nov 5, 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 261–270 of 277 samples, newest first — collected September 14, 2004 to April 17, 2006. The summary above covers all 277.

62 results from the 10 samples listed here: 7 detected, 55 not detected. Across the whole record it is 487 of 1,039. 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 Midway W/A #2, every result from 261 to 270 of 277 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
Apr 17, 2006
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
060418-017CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Apr 17, 2006, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2005 – Dec 31, 2007
Collected
Nov 30, 2005
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
051201-011HA
Laboratory
MSDH Lab
0.103 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 Nov 30, 2005, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Oct 1, 2005 – Dec 31, 2005
Collected
Nov 30, 2005
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
051201-012TH
Laboratory
MSDH Lab
64 ug/l , sample collected Nov 30, 2005, sampling point MRT000 TTHM 2950 EPA method 524.2 Oct 1, 2005 – Dec 31, 2005
Collected
Oct 5, 2005
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
051006-068NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Oct 5, 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 Oct 5, 2005, sampling point TF101 Nitrate 1040 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Oct 5, 2005, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Collected
May 2, 2005
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
050503-095CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected May 2, 2005, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2005 – Dec 31, 2007
Collected
May 2, 2005
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
050503-042IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 2, 2005, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.006888 mg/l , sample collected May 2, 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 May 2, 2005, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.002257 mg/l , sample collected May 2, 2005, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.430623 mg/l , sample collected May 2, 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 May 2, 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 May 2, 2005, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 2, 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 May 2, 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 May 2, 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 May 2, 2005, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Collected
Dec 13, 2004
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
041214-004VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Dec 13, 2004, sampling point TF101 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Oct 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Dec 13, 2004, sampling point TF101 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Oct 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Dec 13, 2004, sampling point TF101 Xylenes, Total 2955 EPA method 524.2 Oct 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Dec 13, 2004, sampling point TF101 Dichloromethane 2964 EPA method 524.2 Oct 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Dec 13, 2004, sampling point TF101 O-Dichlorobenzene 2968 EPA method 524.2 Oct 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Dec 13, 2004, sampling point TF101 P-Dichlorobenzene 2969 EPA method 524.2 Oct 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Dec 13, 2004, sampling point TF101 Vinyl Chloride 2976 EPA method 524.2 Oct 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Dec 13, 2004, sampling point TF101 1,1-Dichloroethylene 2977 EPA method 524.2 Oct 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Dec 13, 2004, sampling point TF101 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Oct 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Dec 13, 2004, sampling point TF101 1,2-Dichloroethane 2980 EPA method 524.2 Oct 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Dec 13, 2004, sampling point TF101 1,1,1-Trichloroethane 2981 EPA method 524.2 Oct 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Dec 13, 2004, sampling point TF101 Carbon Tetrachloride 2982 EPA method 524.2 Oct 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Dec 13, 2004, sampling point TF101 1,2-Dichloropropane 2983 EPA method 524.2 Oct 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Dec 13, 2004, sampling point TF101 Trichloroethylene 2984 EPA method 524.2 Oct 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Dec 13, 2004, sampling point TF101 1,1,2-Trichloroethane 2985 EPA method 524.2 Oct 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Dec 13, 2004, sampling point TF101 Tetrachloroethylene 2987 EPA method 524.2 Oct 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Dec 13, 2004, sampling point TF101 Chlorobenzene 2989 EPA method 524.2 Oct 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Dec 13, 2004, sampling point TF101 Benzene 2990 EPA method 524.2 Oct 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Dec 13, 2004, sampling point TF101 Toluene 2991 EPA method 524.2 Oct 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Dec 13, 2004, sampling point TF101 Ethylbenzene 2992 EPA method 524.2 Oct 1, 2004 – Dec 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Dec 13, 2004, sampling point TF101 Styrene 2996 EPA method 524.2 Oct 1, 2004 – Dec 31, 2004
Collected
Sep 22, 2004
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
040923-009HA
Laboratory
MSDH Lab
0.028 mg/l , sample collected Sep 22, 2004, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2004 – Dec 31, 2004
Collected
Sep 22, 2004
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
040923-010TH
Laboratory
MSDH Lab
38.8 ug/l , sample collected Sep 22, 2004, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2004 – Dec 31, 2004
Collected
Sep 14, 2004
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
040915-027VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Sep 14, 2004, sampling point TF101 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Sep 14, 2004, sampling point TF101 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Sep 14, 2004, sampling point TF101 Xylenes, Total 2955 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Sep 14, 2004, sampling point TF101 Dichloromethane 2964 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Sep 14, 2004, sampling point TF101 O-Dichlorobenzene 2968 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Sep 14, 2004, sampling point TF101 P-Dichlorobenzene 2969 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Sep 14, 2004, sampling point TF101 Vinyl Chloride 2976 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Sep 14, 2004, sampling point TF101 1,1-Dichloroethylene 2977 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Sep 14, 2004, sampling point TF101 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Sep 14, 2004, sampling point TF101 1,2-Dichloroethane 2980 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Sep 14, 2004, sampling point TF101 1,1,1-Trichloroethane 2981 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Sep 14, 2004, sampling point TF101 Carbon Tetrachloride 2982 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Sep 14, 2004, sampling point TF101 1,2-Dichloropropane 2983 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Sep 14, 2004, sampling point TF101 Trichloroethylene 2984 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Sep 14, 2004, sampling point TF101 1,1,2-Trichloroethane 2985 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Sep 14, 2004, sampling point TF101 Tetrachloroethylene 2987 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Sep 14, 2004, sampling point TF101 Chlorobenzene 2989 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Sep 14, 2004, sampling point TF101 Benzene 2990 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Sep 14, 2004, sampling point TF101 Toluene 2991 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Sep 14, 2004, sampling point TF101 Ethylbenzene 2992 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Sep 14, 2004, sampling point TF101 Styrene 2996 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004

Routine (10).