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
MS0270024 , Humphreys Co-Tchula Lake #7
22 of the 58 analytes this system has been tested for have been detected at least once, across 185 samples on record.
The other 36 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 185 samples on record, detections range from July 28, 1993 to February 10, 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 | 92 of 112 results | Jul 28, 1993 | Aug 29, 2024 |
| Lead 1030 | Inorganic Chemical | 48 of 112 results | Jul 28, 1993 | Aug 29, 2024 |
| Barium 1010 | Inorganic Chemical | 10 of 10 results | Sep 17, 2003 | Feb 10, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 6 of 8 results | Aug 16, 2007 | Feb 10, 2025 |
| TTHM 2950 | Organic Chemical | 6 of 7 results | Aug 16, 2007 | Feb 10, 2025 |
| Fluoride 1025 | Inorganic Chemical | 6 of 10 results | Sep 17, 2003 | Mar 2, 2016 |
| Dichloroacetic Acid 2451 | Organic Chemical | 4 of 4 results | Sep 16, 2008 | Aug 6, 2018 |
| Trichloroacetic Acid 2452 | Organic Chemical | 4 of 4 results | Sep 16, 2008 | Aug 6, 2018 |
| Chloroform 2941 | Organic Chemical | 4 of 4 results | Aug 16, 2007 | Sep 24, 2014 |
| Bromodichloromethane 2943 | Organic Chemical | 4 of 4 results | Aug 16, 2007 | Sep 24, 2014 |
| Sodium 1052 | Inorganic Chemical | 3 of 3 results | Sep 23, 2019 | Feb 7, 2024 |
| Chromium 1020 | Inorganic Chemical | 3 of 10 results | Feb 9, 2004 | Mar 2, 2016 |
| Gross Alpha Particle Activity 4109 | Radionuclide | 2 of 4 results | Jun 28, 2012 | Sep 10, 2012 |
| Selenium 1045 | Inorganic Chemical | 2 of 10 results | Mar 16, 2005 | Feb 27, 2006 |
| Sulfate 1055 | Inorganic Chemical | 2 of 2 results | Sep 17, 2003 | Feb 9, 2004 |
| Monobromoacetic Acid 2453 | Organic Chemical | 1 of 4 results | Sep 24, 2014 | Sep 24, 2014 |
| Combined Radium (-226 & -228) 4010 | Radionuclide | 1 of 2 results | Dec 5, 2011 | Dec 5, 2011 |
| Radium-228 4030 | Radionuclide | 1 of 2 results | Dec 5, 2011 | Dec 5, 2011 |
| Nickel 1036 | Inorganic Chemical | 1 of 10 results | Apr 16, 2008 | Apr 16, 2008 |
| Nitrite 1041 | Inorganic Chemical | 1 of 22 results | Apr 23, 2007 | Apr 23, 2007 |
| Cadmium 1015 | Inorganic Chemical | 1 of 10 results | Mar 16, 2005 | Mar 16, 2005 |
| Cyanide 1024 | Inorganic Chemical | 1 of 10 results | Feb 9, 2004 | Feb 9, 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 161–170 of 185 samples, newest first — collected February 3, 1994 to July 6, 1995. The summary above covers all 185.
20 results from the 10 samples listed here: 11 detected, 9 not detected. Across the whole record it is 203 of 650. 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 0.02 mg/l Method Detection Limit , sample collected Jul 6, 1995, sampling point DS000 | Copper, Free 1022 | Not recorded |
| Not detected below 0.001 mg/l Method Detection Limit , sample collected Jul 6, 1995, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.08 mg/l , sample collected Jul 6, 1995, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.35 mg/l , sample collected Jul 6, 1995, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.27 mg/l , sample collected Jul 6, 1995, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.002 mg/l , sample collected Jul 6, 1995, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| Not detected below 0.02 mg/l Method Detection Limit , sample collected Jul 6, 1995, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.004 mg/l , sample collected Jul 6, 1995, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.165 mg/l , sample collected Jul 6, 1995, sampling point DS000 | Copper, Free 1022 | Not recorded |
| Not detected below 0.001 mg/l Method Detection Limit , sample collected Jul 6, 1995, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| Not detected below 0.02 mg/l Method Detection Limit , sample collected Feb 7, 1994, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.001 mg/l , sample collected Feb 7, 1994, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 1.583 mg/l , sample collected Feb 7, 1994, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.002 mg/l , sample collected Feb 7, 1994, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.261 mg/l , sample collected Feb 7, 1994, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.006 mg/l , sample collected Feb 7, 1994, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| Not detected below 0.02 mg/l Method Detection Limit , sample collected Feb 7, 1994, sampling point DS000 | Copper, Free 1022 | Not recorded |
| Not detected below 0.001 mg/l Method Detection Limit , sample collected Feb 7, 1994, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| Not detected below 0.02 mg/l Method Detection Limit , sample collected Feb 3, 1994, sampling point DS000 | Copper, Free 1022 | Not recorded |
| Not detected below 0.001 mg/l Method Detection Limit , sample collected Feb 3, 1994, sampling point DS000 | Lead 1030 | Not recorded |
-
- Collected
- Jul 6, 1995
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 950707-525L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- Not detected below 0.02 mg/l Method Detection Limit
-
Lead 1030
- Result
- Not detected below 0.001 mg/l Method Detection Limit
-
- Collected
- Jul 6, 1995
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 950707-524L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.08 mg/l
-
Lead 1030
- Result
- 0.35 mg/l
-
- Collected
- Jul 6, 1995
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 950707-523L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.27 mg/l
-
Lead 1030
- Result
- 0.002 mg/l
-
- Collected
- Jul 6, 1995
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 950707-522L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- Not detected below 0.02 mg/l Method Detection Limit
-
Lead 1030
- Result
- 0.004 mg/l
-
- Collected
- Jul 6, 1995
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 950707-521L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.165 mg/l
-
Lead 1030
- Result
- Not detected below 0.001 mg/l Method Detection Limit
-
- Collected
- Feb 7, 1994
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 940208-254L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- Not detected below 0.02 mg/l Method Detection Limit
-
Lead 1030
- Result
- 0.001 mg/l
-
- Collected
- Feb 7, 1994
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 940208-251L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 1.583 mg/l
-
Lead 1030
- Result
- 0.002 mg/l
-
- Collected
- Feb 7, 1994
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 940208-247L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.261 mg/l
-
Lead 1030
- Result
- 0.006 mg/l
-
- Collected
- Feb 7, 1994
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 940208-243L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- Not detected below 0.02 mg/l Method Detection Limit
-
Lead 1030
- Result
- Not detected below 0.001 mg/l Method Detection Limit
-
- Collected
- Feb 3, 1994
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 940204-029L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- Not detected below 0.02 mg/l Method Detection Limit
-
Lead 1030
- Result
- Not detected below 0.001 mg/l Method Detection Limit
Routine (10).