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
MS0040006 , Town of McCool
25 of the 57 analytes this system has been tested for have been detected at least once, across 327 samples on record.
The other 32 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 327 samples on record, detections range from August 30, 1993 to September 25, 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 |
|---|---|---|---|---|
| Copper, Free 1022 | Inorganic Chemical | 155 of 164 results | Aug 30, 1993 | Sep 23, 2025 |
| Lead 1030 | Inorganic Chemical | 72 of 164 results | Aug 30, 1993 | Sep 23, 2025 |
| Barium 1010 | Inorganic Chemical | 24 of 24 results | Jan 29, 2002 | Sep 16, 2025 |
| TTHM 2950 | Organic Chemical | 13 of 22 results | May 3, 2004 | Sep 25, 2025 |
| Chromium 1020 | Inorganic Chemical | 10 of 24 results | Jan 29, 2002 | Nov 6, 2018 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 10 of 10 results | Dec 7, 2011 | Jul 10, 2012 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 9 of 23 results | Jun 28, 2007 | Sep 25, 2025 |
| Nickel 1036 | Inorganic Chemical | 8 of 24 results | Jan 12, 2004 | Sep 16, 2025 |
| Chloroform 2941 | Organic Chemical | 7 of 17 results | Jun 28, 2007 | Sep 25, 2025 |
| Fluoride 1025 | Inorganic Chemical | 7 of 24 results | Sep 8, 2003 | Oct 29, 2024 |
| Sodium 1052 | Inorganic Chemical | 6 of 6 results | Sep 23, 2019 | Oct 29, 2024 |
| Dichloroacetic Acid 2451 | Organic Chemical | 4 of 17 results | Sep 6, 2017 | Sep 25, 2025 |
| Bromodichloromethane 2943 | Organic Chemical | 4 of 17 results | Sep 6, 2017 | Sep 25, 2025 |
| Dibromochloromethane 2944 | Organic Chemical | 3 of 17 results | Mar 27, 2024 | Sep 25, 2025 |
| Dibromoacetic Acid 2454 | Organic Chemical | 2 of 17 results | Dec 18, 2024 | Sep 25, 2025 |
| Bromoform 2942 | Organic Chemical | 2 of 17 results | Dec 18, 2024 | Sep 25, 2025 |
| Trichloroacetic Acid 2452 | Organic Chemical | 2 of 17 results | Sep 6, 2017 | Dec 18, 2024 |
| Arsenic 1005 | Inorganic Chemical | 2 of 24 results | Sep 8, 2003 | Apr 1, 2020 |
| Monobromoacetic Acid 2453 | Organic Chemical | 2 of 17 results | Jul 15, 2008 | Apr 17, 2019 |
| Cyanide 1024 | Inorganic Chemical | 2 of 22 results | Jan 18, 2006 | Apr 18, 2011 |
| Selenium 1045 | Inorganic Chemical | 2 of 24 results | Sep 8, 2003 | Jan 10, 2005 |
| Sulfate 1055 | Inorganic Chemical | 2 of 4 results | Jan 12, 2004 | Jan 12, 2004 |
| Monochloroacetic Acid 2450 | Organic Chemical | 1 of 17 results | Apr 17, 2019 | Apr 17, 2019 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 1 of 43 results | May 5, 2004 | May 5, 2004 |
| Nitrate 1040 | Inorganic Chemical | 1 of 43 results | May 5, 2004 | May 5, 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 231–240 of 327 samples, newest first — collected September 18, 2000 to January 12, 2004. The summary above covers all 327.
47 results from the 10 samples listed here: 18 detected, 29 not detected. Across the whole record it is 351 of 1,293. 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 |
|---|---|---|
|
||
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jan 12, 2004, sampling point TF103 | Arsenic 1005 EPA method 200.8 | Jan 1, 2002 – Dec 31, 2004 |
| 0.037 mg/l , sample collected Jan 12, 2004, sampling point TF103 | Barium 1010 EPA method 200.8 | Jan 1, 2002 – Dec 31, 2004 |
| Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Jan 12, 2004, sampling point TF103 | Cadmium 1015 EPA method 200.8 | Jan 1, 2002 – Dec 31, 2004 |
| 0.001 mg/l , sample collected Jan 12, 2004, sampling point TF103 | Chromium 1020 EPA method 200.8 | Jan 1, 2002 – Dec 31, 2004 |
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 12, 2004, sampling point TF103 | Fluoride 1025 EPA method 300.0 | Jan 1, 2002 – Dec 31, 2004 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 12, 2004, sampling point TF103 | Mercury 1035 EPA method 200.8 | Jan 1, 2002 – Dec 31, 2004 |
| 0.001 mg/l , sample collected Jan 12, 2004, sampling point TF103 | Nickel 1036 EPA method 200.8 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jan 12, 2004, sampling point TF103 | Selenium 1045 EPA method 200.8 | Jan 1, 2002 – Dec 31, 2004 |
| 2.53 mg/l , sample collected Jan 12, 2004, sampling point TF103 | Sulfate 1055 EPA method 300.0 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jan 12, 2004, sampling point TF103 | Antimony, Total 1074 EPA method 200.8 | Jan 1, 2002 – Dec 31, 2004 |
| Not detected below 0.0003 mg/l Minimum Reporting Level , sample collected Jan 12, 2004, sampling point TF103 | Beryllium, Total 1075 EPA method 200.8 | Jan 1, 2002 – Dec 31, 2004 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 12, 2004, sampling point TF103 | Thallium, Total 1085 EPA method 200.8 | Jan 1, 2002 – Dec 31, 2004 |
|
||
| 0.001 mg/l , sample collected Sep 8, 2003, sampling point TF103 | Arsenic 1005 EPA method 200.8 | Not recorded |
| 0.017 mg/l , sample collected Sep 8, 2003, sampling point TF103 | Barium 1010 EPA method 200.8 | Not recorded |
| Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Sep 8, 2003, sampling point TF103 | Cadmium 1015 EPA method 200.8 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 8, 2003, sampling point TF103 | Chromium 1020 EPA method 200.8 | Not recorded |
| 0.155 mg/l , sample collected Sep 8, 2003, sampling point TF103 | Fluoride 1025 EPA method 300.0 | Not recorded |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 8, 2003, sampling point TF103 | Mercury 1035 EPA method 200.8 | Not recorded |
| Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Sep 8, 2003, sampling point TF103 | Nickel 1036 EPA method 200.8 | Not recorded |
| 0.002 mg/l , sample collected Sep 8, 2003, sampling point TF103 | Selenium 1045 EPA method 200.8 | Not recorded |
| Not detected below 2.5 mg/l Minimum Reporting Level , sample collected Sep 8, 2003, sampling point TF103 | Sulfate 1055 EPA method 300.0 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 8, 2003, sampling point TF103 | Antimony, Total 1074 EPA method 200.8 | Not recorded |
| Not detected below 0.0003 mg/l Minimum Reporting Level , sample collected Sep 8, 2003, sampling point TF103 | Beryllium, Total 1075 EPA method 200.8 | Not recorded |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 8, 2003, sampling point TF103 | Thallium, Total 1085 EPA method 200.8 | Not recorded |
|
||
| Not detected below 0.01 mg/l Minimum Reporting Level , sample collected Sep 8, 2003, sampling point TF103 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2002 – Dec 31, 2004 |
|
||
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jan 29, 2002, sampling point TF102 | Arsenic 1005 EPA method 200.8 | Jan 1, 2002 – Dec 31, 2004 |
| 0.034 mg/l , sample collected Jan 29, 2002, sampling point TF102 | Barium 1010 EPA method 200.8 | Jan 1, 2002 – Dec 31, 2004 |
| Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Jan 29, 2002, sampling point TF102 | Cadmium 1015 EPA method 200.8 | Jan 1, 2002 – Dec 31, 2004 |
| 0.001 mg/l , sample collected Jan 29, 2002, sampling point TF102 | Chromium 1020 EPA method 200.8 | Jan 1, 2002 – Dec 31, 2004 |
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 29, 2002, sampling point TF102 | Fluoride 1025 EPA method 300.0 | Jan 1, 2002 – Dec 31, 2004 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 29, 2002, sampling point TF102 | Mercury 1035 EPA method 200.8 | Jan 1, 2002 – Dec 31, 2004 |
| Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Jan 29, 2002, sampling point TF102 | Nickel 1036 EPA method 200.8 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jan 29, 2002, sampling point TF102 | Selenium 1045 EPA method 200.8 | Jan 1, 2002 – Dec 31, 2004 |
| Not detected below 2.5 mg/l Minimum Reporting Level , sample collected Jan 29, 2002, sampling point TF102 | Sulfate 1055 EPA method 300.0 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jan 29, 2002, sampling point TF102 | Antimony, Total 1074 EPA method 200.8 | Jan 1, 2002 – Dec 31, 2004 |
| Not detected below 0.0003 mg/l Minimum Reporting Level , sample collected Jan 29, 2002, sampling point TF102 | Beryllium, Total 1075 EPA method 200.8 | Jan 1, 2002 – Dec 31, 2004 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 29, 2002, sampling point TF102 | Thallium, Total 1085 EPA method 200.8 | Jan 1, 2002 – Dec 31, 2004 |
|
||
| Not detected below 0.01 mg/l Minimum Reporting Level , sample collected Jan 15, 2002, sampling point TF102 | Cyanide 1024 EPA method 335.4 | Jan 1, 2002 – Dec 31, 2004 |
|
||
| Not detected below 0.01 mg/l Minimum Reporting Level , sample collected Jan 15, 2002, sampling point TF103 | Cyanide 1024 EPA method 335.4 | Jan 1, 2002 – Dec 31, 2004 |
|
||
| 0.315 mg/l , sample collected Sep 18, 2000, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.003 mg/l , sample collected Sep 18, 2000, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.167 mg/l , sample collected Sep 18, 2000, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.001 mg/l , sample collected Sep 18, 2000, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.349 mg/l , sample collected Sep 18, 2000, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.007 mg/l , sample collected Sep 18, 2000, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.292 mg/l , sample collected Sep 18, 2000, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.002 mg/l , sample collected Sep 18, 2000, sampling point DS000 | Lead 1030 | Not recorded |
-
- Collected
- Jan 12, 2004
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- 040113-034IN
- Laboratory
- MSDH Lab
-
Arsenic 1005 EPA method 200.8
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Barium 1010 EPA method 200.8
- Result
- 0.037 mg/l
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Cadmium 1015 EPA method 200.8
- Result
- Not detected below 0.0001 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Chromium 1020 EPA method 200.8
- Result
- 0.001 mg/l
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Fluoride 1025 EPA method 300.0
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Mercury 1035 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Nickel 1036 EPA method 200.8
- Result
- 0.001 mg/l
- Monitoring period
- Not recorded
-
Selenium 1045 EPA method 200.8
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Sulfate 1055 EPA method 300.0
- Result
- 2.53 mg/l
- Monitoring period
- Not recorded
-
Antimony, Total 1074 EPA method 200.8
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Beryllium, Total 1075 EPA method 200.8
- Result
- Not detected below 0.0003 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Thallium, Total 1085 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
- Collected
- Sep 8, 2003
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- 030909-039IN
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Arsenic 1005 EPA method 200.8
- Result
- 0.001 mg/l
-
Barium 1010 EPA method 200.8
- Result
- 0.017 mg/l
-
Cadmium 1015 EPA method 200.8
- Result
- Not detected below 0.0001 mg/l Minimum Reporting Level
-
Chromium 1020 EPA method 200.8
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
-
Fluoride 1025 EPA method 300.0
- Result
- 0.155 mg/l
-
Mercury 1035 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
Nickel 1036 EPA method 200.8
- Result
- Not detected below 0.005 mg/l Minimum Reporting Level
-
Selenium 1045 EPA method 200.8
- Result
- 0.002 mg/l
-
Sulfate 1055 EPA method 300.0
- Result
- Not detected below 2.5 mg/l Minimum Reporting Level
-
Antimony, Total 1074 EPA method 200.8
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
-
Beryllium, Total 1075 EPA method 200.8
- Result
- Not detected below 0.0003 mg/l Minimum Reporting Level
-
Thallium, Total 1085 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Sep 8, 2003
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- 030909-025CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.01 mg/l Minimum Reporting Level
-
- Collected
- Jan 29, 2002
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 020130-020IN
- Laboratory
- MSDH Lab
-
Arsenic 1005 EPA method 200.8
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Barium 1010 EPA method 200.8
- Result
- 0.034 mg/l
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Cadmium 1015 EPA method 200.8
- Result
- Not detected below 0.0001 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Chromium 1020 EPA method 200.8
- Result
- 0.001 mg/l
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Fluoride 1025 EPA method 300.0
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Mercury 1035 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Nickel 1036 EPA method 200.8
- Result
- Not detected below 0.005 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Selenium 1045 EPA method 200.8
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Sulfate 1055 EPA method 300.0
- Result
- Not detected below 2.5 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Antimony, Total 1074 EPA method 200.8
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Beryllium, Total 1075 EPA method 200.8
- Result
- Not detected below 0.0003 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Thallium, Total 1085 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
- Collected
- Jan 15, 2002
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 020116-024CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Cyanide 1024 EPA method 335.4
- Result
- Not detected below 0.01 mg/l Minimum Reporting Level
-
- Collected
- Jan 15, 2002
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- 020116-018CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Cyanide 1024 EPA method 335.4
- Result
- Not detected below 0.01 mg/l Minimum Reporting Level
-
- Collected
- Sep 18, 2000
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 000920-133L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.315 mg/l
-
Lead 1030
- Result
- 0.003 mg/l
-
- Collected
- Sep 18, 2000
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 000920-132L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.167 mg/l
-
Lead 1030
- Result
- 0.001 mg/l
-
- Collected
- Sep 18, 2000
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 000920-131L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.349 mg/l
-
Lead 1030
- Result
- 0.007 mg/l
-
- Collected
- Sep 18, 2000
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 000920-130L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.292 mg/l
-
Lead 1030
- Result
- 0.002 mg/l
Routine (10).