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 21–30 of 185 samples, newest first — collected October 24, 2018 to August 4, 2021. The summary above covers all 185.
29 results from the 10 samples listed here: 9 detected, 20 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.
Units in this table
Sodium is recorded on this page in ug/l and mg/l. 1 mg/l = 1,000 ug/l.
We withheld the location of 3 sampling points below. The location on record identifies a private home, and we do not publish those. That is our decision, not the agency’s. The sampling point, its type and every result taken there are published unchanged.
| Result | Analyte | Monitoring period |
|---|---|---|
|
||
| 0.4 mg/l , sample collected Aug 4, 2021 08:29, sampling point LC0009 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2019 – Dec 31, 2021 |
| 0.8 ug/l , sample collected Aug 4, 2021 08:29, sampling point LC0009 | Lead 1030 EPA method 200.8 | Jan 1, 2019 – Dec 31, 2021 |
|
||
| 0.0081 mg/l , sample collected Aug 4, 2021 09:20, sampling point LC0003 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2019 – Dec 31, 2021 |
| 0.9 ug/l , sample collected Aug 4, 2021 09:20, sampling point LC0003 | Lead 1030 EPA method 200.8 | Jan 1, 2019 – Dec 31, 2021 |
|
||
| 0.118 mg/l , sample collected Aug 3, 2021 06:15, sampling point LC0007 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2019 – Dec 31, 2021 |
| 1.4 ug/l , sample collected Aug 3, 2021 06:15, sampling point LC0007 | Lead 1030 EPA method 200.8 | Jan 1, 2019 – Dec 31, 2021 |
|
||
| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Jun 7, 2021 09:50, sampling point TF101 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2020 – Dec 31, 2022 |
|
||
| 26.5 mg/l , sample collected Mar 8, 2021 14:20, sampling point TF101 | Sodium 1052 EPA method 200.7 | Not recorded |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 8, 2021 14:20, sampling point TF101 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2021 – Dec 31, 2021 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 8, 2021 14:20, sampling point TF101 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2021 – Dec 31, 2021 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 8, 2021 14:20, sampling point TF101 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2021 – Dec 31, 2021 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Dec 16, 2020 14:15, sampling point TF101 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2020 – Dec 31, 2020 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Dec 16, 2020 14:15, sampling point TF101 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2020 – Dec 31, 2020 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Dec 16, 2020 14:15, sampling point TF101 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2020 – Dec 31, 2020 |
|
||
| 67000 ug/l , sample collected Sep 23, 2019 13:20, sampling point TF101 | Sodium 1052 EPA method 200.7 | Not recorded |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 18, 2019 14:00, sampling point TF101 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2019 – Dec 31, 2019 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 18, 2019 14:00, sampling point TF101 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2019 – Dec 31, 2019 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 18, 2019 14:00, sampling point TF101 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2019 – Dec 31, 2019 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 01:00, sampling point TF101 | Arsenic 1005 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
| 0.0066 mg/l , sample collected Oct 24, 2018 01:00, sampling point TF101 | Barium 1010 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 01:00, sampling point TF101 | Cadmium 1015 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 01:00, sampling point TF101 | Chromium 1020 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 01:00, sampling point TF101 | Fluoride 1025 EPA method 300.0 | Jan 1, 2017 – Dec 31, 2019 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 01:00, sampling point TF101 | Mercury 1035 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 01:00, sampling point TF101 | Nickel 1036 EPA method 200.8 | Not recorded |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 01:00, sampling point TF101 | Selenium 1045 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 01:00, sampling point TF101 | Antimony, Total 1074 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 01:00, sampling point TF101 | Beryllium, Total 1075 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 01:00, sampling point TF101 | Thallium, Total 1085 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
-
- Collected
- Aug 4, 2021 08:29
- Sampling point
- LC0009 Location withheld
- Sample type
- Routine
- Lab sample
- PB-210805-073
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2019 – Dec 31, 2021
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.4 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.8 ug/l
-
- Collected
- Aug 4, 2021 09:20
- Sampling point
- LC0003 Location withheld
- Sample type
- Routine
- Lab sample
- PB-210805-071
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2019 – Dec 31, 2021
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0081 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.9 ug/l
-
- Collected
- Aug 3, 2021 06:15
- Sampling point
- LC0007 Location withheld
- Sample type
- Routine
- Lab sample
- PB-210805-075
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2019 – Dec 31, 2021
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.118 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 1.4 ug/l
-
- Collected
- Jun 7, 2021 09:50
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- CN-210608-014
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- Mar 8, 2021 14:20
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- NA-210309-017
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Sodium 1052 EPA method 200.7
- Result
- 26.5 mg/l
-
- Collected
- Mar 8, 2021 14:20
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- NI-210309-097
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Dec 31, 2021
-
Nitrate-Nitrite 1038 EPA method QC10107041C
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method QC10107041C
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method QC10107041C
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- Dec 16, 2020 14:15
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- NI-201217-001
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2020 – Dec 31, 2020
-
Nitrate-Nitrite 1038 EPA method QC10107041C
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method QC10107041C
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method QC10107041C
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- Sep 23, 2019 13:20
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 680-175397-29
- Laboratory
- Test America-Savannah
- Monitoring period
- Not recorded
-
Sodium 1052 EPA method 200.7
- Result
- 67000 ug/l
-
- Collected
- Mar 18, 2019 14:00
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 190319-056NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2019 – Dec 31, 2019
-
Nitrate-Nitrite 1038 EPA method QC10107041C
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method QC10107041C
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method QC10107041C
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- Oct 24, 2018 01:00
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 181025-029IN
- Laboratory
- MSDH Lab
-
Arsenic 1005 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Barium 1010 EPA method 200.8
- Result
- 0.0066 mg/l
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Cadmium 1015 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Chromium 1020 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Fluoride 1025 EPA method 300.0
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Mercury 1035 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Nickel 1036 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Selenium 1045 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Antimony, Total 1074 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Beryllium, Total 1075 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Thallium, Total 1085 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
Routine (10).