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
MS0350001 , Town of Dekalb
26 of the 62 analytes this system has been tested for have been detected at least once, across 166 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 166 samples on record, detections range from September 24, 2003 to July 27, 2026. These figures cover the whole record; the list of samples further down is narrowed.
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 | 60 of 60 results | Jul 31, 2007 | Jul 27, 2026 |
| Barium 1010 | Inorganic Chemical | 15 of 15 results | Sep 24, 2003 | Jun 15, 2026 |
| Nickel 1036 | Inorganic Chemical | 13 of 14 results | Feb 23, 2004 | Oct 8, 2025 |
| Fluoride 1025 | Inorganic Chemical | 12 of 17 results | Sep 24, 2003 | Jul 15, 2026 |
| Lead 1030 | Inorganic Chemical | 11 of 60 results | Jul 31, 2007 | Jul 27, 2026 |
| TTHM 2950 | Organic Chemical | 9 of 16 results | Jun 21, 2004 | May 18, 2026 |
| Dibromochloromethane 2944 | Organic Chemical | 7 of 12 results | Aug 13, 2007 | May 18, 2026 |
| Sodium 1052 | Inorganic Chemical | 6 of 6 results | Sep 23, 2019 | Jun 15, 2026 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 6 of 18 results | Sep 22, 2009 | Jun 15, 2021 |
| Bromodichloromethane 2943 | Organic Chemical | 6 of 12 results | Aug 13, 2007 | Jun 15, 2020 |
| Chloroform 2941 | Organic Chemical | 5 of 12 results | Aug 13, 2007 | Apr 22, 2019 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 5 of 5 results | Dec 14, 2011 | Jul 17, 2012 |
| Sulfate 1055 | Inorganic Chemical | 4 of 4 results | Sep 24, 2003 | May 12, 2021 |
| Bromoform 2942 | Organic Chemical | 4 of 12 results | Aug 13, 2007 | Aug 22, 2018 |
| Chromium 1020 | Inorganic Chemical | 3 of 15 results | Feb 26, 2025 | Jul 23, 2025 |
| Dichloroacetic Acid 2451 | Organic Chemical | 3 of 13 results | Jun 29, 2015 | Apr 22, 2019 |
| Calcium 1016 | Inorganic Chemical | 2 of 2 results | May 12, 2021 | May 12, 2021 |
| Chloride 1017 | Inorganic Chemical | 2 of 2 results | May 12, 2021 | May 12, 2021 |
| Conductivity @ 25 C Umhos/CM 1064 | Water Quality | 2 of 2 results | May 12, 2021 | May 12, 2021 |
| Alkalinity, Total 1927 | Water Quality | 2 of 2 results | May 12, 2021 | May 12, 2021 |
| Monobromoacetic Acid 2453 | Organic Chemical | 2 of 13 results | Jun 29, 2015 | Jun 15, 2020 |
| Xylenes, Total 2955 | Organic Chemical | 1 of 8 results | Oct 8, 2025 | Oct 8, 2025 |
| Arsenic 1005 | Inorganic Chemical | 1 of 15 results | Jul 23, 2025 | Jul 23, 2025 |
| Selenium 1045 | Inorganic Chemical | 1 of 15 results | Jul 23, 2025 | Jul 23, 2025 |
| Monochloroacetic Acid 2450 | Organic Chemical | 1 of 13 results | Jun 29, 2015 | Jun 29, 2015 |
| Dibromoacetic Acid 2454 | Organic Chemical | 1 of 13 results | Jun 29, 2015 | Jun 29, 2015 |
Showing samples collected between September 25, 2024 and September 25, 2026. That is this page’s default, not a limit on what the agency records.
Choose a date range
The most recent samples, result by result
The table below lists 1–10 of 37 samples, newest first — collected July 27, 2026 to July 27, 2026. The summary above covers all 37.
20 results from the 10 samples listed here: 11 detected, 9 not detected. Across the whole record it is 184 of 731. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.
We withheld the location of 10 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 |
|---|---|---|
|
||
| 14.3 ug/l , sample collected Jul 27, 2026, sampling point LC0010 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2024 – Dec 31, 2026 |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 27, 2026, sampling point LC0010 | Lead 1030 EPA method 200.8 | Jan 1, 2024 – Dec 31, 2026 |
|
||
| 28 ug/l , sample collected Jul 27, 2026, sampling point LC0009 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2024 – Dec 31, 2026 |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 27, 2026, sampling point LC0009 | Lead 1030 EPA method 200.8 | Jan 1, 2024 – Dec 31, 2026 |
|
||
| 2.9 ug/l , sample collected Jul 27, 2026, sampling point LC0008 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2024 – Dec 31, 2026 |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 27, 2026, sampling point LC0008 | Lead 1030 EPA method 200.8 | Jan 1, 2024 – Dec 31, 2026 |
|
||
| 8.4 ug/l , sample collected Jul 27, 2026, sampling point LC0007 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2024 – Dec 31, 2026 |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 27, 2026, sampling point LC0007 | Lead 1030 EPA method 200.8 | Jan 1, 2024 – Dec 31, 2026 |
|
||
| 4.6 ug/l , sample collected Jul 27, 2026, sampling point LC0006 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2024 – Dec 31, 2026 |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 27, 2026, sampling point LC0006 | Lead 1030 EPA method 200.8 | Jan 1, 2024 – Dec 31, 2026 |
|
||
| 3.2 ug/l , sample collected Jul 27, 2026, sampling point LC0005 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2024 – Dec 31, 2026 |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 27, 2026, sampling point LC0005 | Lead 1030 EPA method 200.8 | Jan 1, 2024 – Dec 31, 2026 |
|
||
| 35.5 ug/l , sample collected Jul 27, 2026, sampling point LC0004 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2024 – Dec 31, 2026 |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 27, 2026, sampling point LC0004 | Lead 1030 EPA method 200.8 | Jan 1, 2024 – Dec 31, 2026 |
|
||
| 4 ug/l , sample collected Jul 27, 2026, sampling point LC0003 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2024 – Dec 31, 2026 |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 27, 2026, sampling point LC0003 | Lead 1030 EPA method 200.8 | Jan 1, 2024 – Dec 31, 2026 |
|
||
| 405 ug/l , sample collected Jul 27, 2026, sampling point LC0002 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2024 – Dec 31, 2026 |
| 19.4 ug/l , sample collected Jul 27, 2026, sampling point LC0002 | Lead 1030 EPA method 200.8 | Jan 1, 2024 – Dec 31, 2026 |
|
||
| 53.5 ug/l , sample collected Jul 27, 2026, sampling point LC0001 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2024 – Dec 31, 2026 |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 27, 2026, sampling point LC0001 | Lead 1030 EPA method 200.8 | Jan 1, 2024 – Dec 31, 2026 |
-
- Collected
- Jul 27, 2026
- Sampling point
- LC0010 Location withheld
- Sample type
- Routine
- Lab sample
- 35053999010
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2024 – Dec 31, 2026
-
Copper, Free 1022 EPA method 200.8
- Result
- 14.3 ug/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Jul 27, 2026
- Sampling point
- LC0009 Location withheld
- Sample type
- Routine
- Lab sample
- 35053999009
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2024 – Dec 31, 2026
-
Copper, Free 1022 EPA method 200.8
- Result
- 28 ug/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Jul 27, 2026
- Sampling point
- LC0008 Location withheld
- Sample type
- Routine
- Lab sample
- 35053999008
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2024 – Dec 31, 2026
-
Copper, Free 1022 EPA method 200.8
- Result
- 2.9 ug/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Jul 27, 2026
- Sampling point
- LC0007 Location withheld
- Sample type
- Routine
- Lab sample
- 35053999007
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2024 – Dec 31, 2026
-
Copper, Free 1022 EPA method 200.8
- Result
- 8.4 ug/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Jul 27, 2026
- Sampling point
- LC0006 Location withheld
- Sample type
- Routine
- Lab sample
- 35053999006
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2024 – Dec 31, 2026
-
Copper, Free 1022 EPA method 200.8
- Result
- 4.6 ug/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Jul 27, 2026
- Sampling point
- LC0005 Location withheld
- Sample type
- Routine
- Lab sample
- 35053999005
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2024 – Dec 31, 2026
-
Copper, Free 1022 EPA method 200.8
- Result
- 3.2 ug/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Jul 27, 2026
- Sampling point
- LC0004 Location withheld
- Sample type
- Routine
- Lab sample
- 35053999004
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2024 – Dec 31, 2026
-
Copper, Free 1022 EPA method 200.8
- Result
- 35.5 ug/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Jul 27, 2026
- Sampling point
- LC0003 Location withheld
- Sample type
- Routine
- Lab sample
- 35053999003
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2024 – Dec 31, 2026
-
Copper, Free 1022 EPA method 200.8
- Result
- 4 ug/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Jul 27, 2026
- Sampling point
- LC0002 Location withheld
- Sample type
- Routine
- Lab sample
- 35053999002
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2024 – Dec 31, 2026
-
Copper, Free 1022 EPA method 200.8
- Result
- 405 ug/l
-
Lead 1030 EPA method 200.8
- Result
- 19.4 ug/l
-
- Collected
- Jul 27, 2026
- Sampling point
- LC0001 Location withheld
- Sample type
- Routine
- Lab sample
- 35053999001
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2024 – Dec 31, 2026
-
Copper, Free 1022 EPA method 200.8
- Result
- 53.5 ug/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 1 ug/l Minimum Reporting Level
Routine (10).