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
MS0820010 , Midway W/A #1
37 of the 72 analytes this system has been tested for have been detected at least once, across 313 samples on record.
The other 35 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 313 samples on record, detections range from May 20, 2004 to December 9, 2025. 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.
| Analyte | Kind | Detected in | First detected | Last detected |
|---|---|---|---|---|
| TTHM 2950 | Organic Chemical | 83 of 95 results | Sep 22, 2004 | May 9, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 81 of 90 results | Sep 22, 2004 | May 9, 2025 |
| Copper, Free 1022 | Inorganic Chemical | 60 of 60 results | Aug 21, 2007 | Sep 30, 2024 |
| Chloroform 2941 | Organic Chemical | 49 of 52 results | May 24, 2006 | Dec 15, 2020 |
| Lead 1030 | Inorganic Chemical | 47 of 60 results | Aug 21, 2007 | Sep 30, 2024 |
| Bromodichloromethane 2943 | Organic Chemical | 44 of 52 results | May 24, 2006 | Dec 15, 2020 |
| Dichloroacetic Acid 2451 | Organic Chemical | 43 of 46 results | Jul 10, 2008 | Dec 15, 2020 |
| Trichloroacetic Acid 2452 | Organic Chemical | 39 of 46 results | Jul 10, 2008 | Dec 15, 2020 |
| Fluoride 1025 | Inorganic Chemical | 11 of 11 results | Nov 15, 2004 | Dec 9, 2025 |
| Monochloroacetic Acid 2450 | Organic Chemical | 11 of 46 results | Dec 14, 2009 | Mar 22, 2020 |
| Barium 1010 | Inorganic Chemical | 10 of 10 results | Nov 15, 2004 | Dec 9, 2025 |
| Monobromoacetic Acid 2453 | Organic Chemical | 10 of 46 results | Jun 15, 2009 | Dec 15, 2020 |
| Chromium 1020 | Inorganic Chemical | 7 of 10 results | May 2, 2005 | Dec 9, 2025 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 5 of 5 results | Dec 12, 2011 | Jul 17, 2012 |
| Sodium 1052 | Inorganic Chemical | 4 of 4 results | Oct 13, 2009 | Mar 28, 2023 |
| Arsenic 1005 | Inorganic Chemical | 2 of 10 results | Dec 9, 2025 | Dec 9, 2025 |
| Calcium 1016 | Inorganic Chemical | 2 of 2 results | Oct 13, 2009 | Sep 27, 2017 |
| Chloride 1017 | Inorganic Chemical | 2 of 2 results | Oct 13, 2009 | Sep 27, 2017 |
| Magnesium 1031 | Inorganic Chemical | 2 of 2 results | Oct 13, 2009 | Sep 27, 2017 |
| Manganese 1032 | Inorganic Chemical | 2 of 2 results | Oct 13, 2009 | Sep 27, 2017 |
| Potassium 1042 | Inorganic Chemical | 2 of 2 results | Oct 13, 2009 | Sep 27, 2017 |
| Residue, Total, Filterable 1057 | Water Quality | 2 of 2 results | Oct 13, 2009 | Sep 27, 2017 |
| Alkalinity, Caco3 Stability 1067 | Water Quality | 2 of 2 results | Oct 13, 2009 | Sep 27, 2017 |
| Color 1905 | Water Quality | 2 of 2 results | Oct 13, 2009 | Sep 27, 2017 |
| Hardness, Total (As Caco3) 1915 | Water Quality | 2 of 2 results | Oct 13, 2009 | Sep 27, 2017 |
| Alkalinity, Total 1927 | Water Quality | 2 of 2 results | Oct 13, 2009 | Sep 27, 2017 |
| Calculated Sodium NACA | Water Quality | 2 of 2 results | Oct 13, 2009 | Sep 27, 2017 |
| PH, Field Result PHFD | Water Quality | 2 of 2 results | Oct 13, 2009 | Sep 27, 2017 |
| Dibromochloromethane 2944 | Organic Chemical | 2 of 52 results | Dec 9, 2015 | Dec 9, 2015 |
| Iron 1028 | Inorganic Chemical | 1 of 2 results | Sep 27, 2017 | Sep 27, 2017 |
| Nickel 1036 | Inorganic Chemical | 1 of 10 results | May 10, 2010 | May 10, 2010 |
| Carbon Dioxide 1901 | Water Quality | 1 of 1 result | Oct 13, 2009 | Oct 13, 2009 |
| Iron, Field Result FEFD | Inorganic Chemical | 1 of 1 result | Oct 13, 2009 | Oct 13, 2009 |
| Selenium 1045 | Inorganic Chemical | 1 of 10 results | May 2, 2005 | May 2, 2005 |
| Xylenes, Total 2955 | Organic Chemical | 1 of 12 results | May 20, 2004 | May 20, 2004 |
| Toluene 2991 | Organic Chemical | 1 of 12 results | May 20, 2004 | May 20, 2004 |
| Ethylbenzene 2992 | Organic Chemical | 1 of 12 results | May 20, 2004 | May 20, 2004 |
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 271–280 of 313 samples, newest first — collected December 4, 2006 to August 21, 2007. The summary above covers all 313.
29 results from the 10 samples listed here: 18 detected, 11 not detected. Across the whole record it is 540 of 1,242. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.
| Result | Analyte | Monitoring period |
|---|---|---|
|
||
| 0.0155 mg/l , sample collected Aug 21, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| 0.0008 mg/l , sample collected Aug 21, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| 0.0439 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 Jul 23, 2007, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jan 1, 2007 – Dec 31, 2007 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jul 23, 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 Jul 23, 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 Jul 23, 2007, sampling point TF101 | Nitrite 1041 EPA method 353.2 | Jan 1, 2007 – Dec 31, 2007 |
|
||
| 57.9 ug/l , sample collected Jul 23, 2007, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 23, 2007, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 6.72 ug/l , sample collected Jul 23, 2007, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 23, 2007, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 64.62 ug/l , sample collected Jul 23, 2007, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2007 – Dec 31, 2007 |
|
||
| 0.0388 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 May 14, 2007, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jan 1, 2007 – Dec 31, 2007 |
|
||
| 43.6 ug/l , sample collected May 14, 2007, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected May 14, 2007, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 5.48 ug/l , sample collected May 14, 2007, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected May 14, 2007, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 49.08 ug/l , sample collected May 14, 2007, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2007 – Dec 31, 2007 |
|
||
| 43.7 ug/l , sample collected Mar 12, 2007, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Mar 12, 2007, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 5.46 ug/l , sample collected Mar 12, 2007, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Mar 12, 2007, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 49.16 ug/l , sample collected Mar 12, 2007, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2007 – Dec 31, 2007 |
|
||
| 0.0344 mg/l , sample collected Mar 12, 2007, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jan 1, 2007 – Dec 31, 2007 |
|
||
| 0.0182 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 Dec 4, 2006, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Oct 1, 2006 – Dec 31, 2006 |
|
||
| 33.2 ug/l , sample collected Dec 4, 2006, sampling point MRT000 | Chloroform 2941 EPA method 551.1 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 4, 2006, sampling point MRT000 | Bromoform 2942 EPA method 551.1 | Not recorded |
| 4.45 ug/l , sample collected Dec 4, 2006, sampling point MRT000 | Bromodichloromethane 2943 EPA method 551.1 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 4, 2006, sampling point MRT000 | Dibromochloromethane 2944 EPA method 551.1 | Not recorded |
| 37.65 ug/l , sample collected Dec 4, 2006, sampling point MRT000 | TTHM 2950 EPA method 551.1 | Oct 1, 2006 – Dec 31, 2006 |
-
- Collected
- Aug 21, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070822-108PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0155 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0008 mg/l
-
- Collected
- Jul 23, 2007
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 070724-025HA
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2007 – Dec 31, 2007
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 0.0439 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.
-
- Collected
- Jul 23, 2007
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 070724-014NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2007 – Dec 31, 2007
-
Nitrate-Nitrite 1038 EPA method 353.2
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method 353.2
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method 353.2
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- Jul 23, 2007
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 070724-031TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- 57.9 ug/l
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- 6.72 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 64.62 ug/l
- Monitoring period
- Jan 1, 2007 – Dec 31, 2007
-
- Collected
- May 14, 2007
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 070515-008HA
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2007 – Dec 31, 2007
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 0.0388 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.
-
- Collected
- May 14, 2007
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 070515-008TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- 43.6 ug/l
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- 5.48 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 49.08 ug/l
- Monitoring period
- Jan 1, 2007 – Dec 31, 2007
-
- Collected
- Mar 12, 2007
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 070313-004TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- 43.7 ug/l
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- 5.46 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 49.16 ug/l
- Monitoring period
- Jan 1, 2007 – Dec 31, 2007
-
- Collected
- Mar 12, 2007
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 070313-005HA
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2007 – Dec 31, 2007
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 0.0344 mg/l
-
- Collected
- Dec 4, 2006
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 061205-007HA
- Laboratory
- MSDH Lab
- Monitoring period
- Oct 1, 2006 – Dec 31, 2006
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 0.0182 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.
-
- Collected
- Dec 4, 2006
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 061205-009TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 551.1
- Result
- 33.2 ug/l
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 551.1
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 551.1
- Result
- 4.45 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 551.1
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 551.1
- Result
- 37.65 ug/l
- Monitoring period
- Oct 1, 2006 – Dec 31, 2006
Routine (10).