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
MS0240060 , Naval Construction Battal CTR
41 of the 73 analytes this system has been tested for have been detected at least once, across 505 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 505 samples on record, detections range from August 30, 1993 to July 30, 2026. 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 | 227 of 249 results | Aug 30, 1993 | Jul 30, 2026 |
| Lead 1030 | Inorganic Chemical | 194 of 249 results | Aug 30, 1993 | Jul 29, 2026 |
| Fluoride 1025 | Inorganic Chemical | 36 of 37 results | Sep 15, 2003 | Jul 1, 2026 |
| Barium 1010 | Inorganic Chemical | 34 of 34 results | Sep 15, 2003 | Jul 1, 2026 |
| TTHM 2950 | Organic Chemical | 20 of 20 results | May 24, 2004 | Aug 11, 2025 |
| Chloroform 2941 | Organic Chemical | 15 of 15 results | Aug 2, 2007 | Aug 11, 2025 |
| Bromodichloromethane 2943 | Organic Chemical | 15 of 15 results | Aug 2, 2007 | Aug 11, 2025 |
| Dibromochloromethane 2944 | Organic Chemical | 15 of 15 results | Aug 2, 2007 | Aug 11, 2025 |
| Chromium 1020 | Inorganic Chemical | 15 of 34 results | Sep 15, 2003 | Nov 27, 2023 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 15 of 15 results | Mar 5, 2012 | Oct 3, 2012 |
| Sodium 1052 | Inorganic Chemical | 12 of 12 results | Aug 10, 2017 | Feb 5, 2024 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 10 of 22 results | Aug 2, 2007 | Mar 25, 2024 |
| Sulfate 1055 | Inorganic Chemical | 9 of 9 results | Sep 15, 2003 | Aug 10, 2017 |
| Bromoform 2942 | Organic Chemical | 7 of 15 results | Sep 10, 2008 | Aug 6, 2024 |
| Nickel 1036 | Inorganic Chemical | 7 of 31 results | Jan 30, 2006 | Apr 16, 2014 |
| Arsenic 1005 | Inorganic Chemical | 5 of 34 results | Apr 7, 2008 | Jan 8, 2024 |
| Dichloroacetic Acid 2451 | Organic Chemical | 4 of 16 results | Jul 19, 2012 | Jul 23, 2019 |
| Selenium 1045 | Inorganic Chemical | 4 of 34 results | Mar 9, 2005 | Jan 30, 2006 |
| Cadmium 1015 | Inorganic Chemical | 4 of 34 results | Sep 15, 2003 | Mar 9, 2005 |
| Combined Radium (-226 & -228) 4010 | Radionuclide | 3 of 18 results | Dec 15, 2025 | Dec 15, 2025 |
| Radium-226 4020 | Radionuclide | 3 of 18 results | Dec 15, 2025 | Dec 15, 2025 |
| Radium-228 4030 | Radionuclide | 3 of 18 results | Dec 15, 2025 | Dec 15, 2025 |
| Dibromoacetic Acid 2454 | Organic Chemical | 3 of 16 results | Jul 19, 2012 | Aug 6, 2024 |
| Trichloroacetic Acid 2452 | Organic Chemical | 3 of 16 results | Jul 19, 2012 | Jul 23, 2019 |
| Calcium 1016 | Inorganic Chemical | 3 of 3 results | Aug 10, 2017 | Aug 10, 2017 |
| Chloride 1017 | Inorganic Chemical | 3 of 3 results | Aug 10, 2017 | Aug 10, 2017 |
| Iron 1028 | Inorganic Chemical | 3 of 3 results | Aug 10, 2017 | Aug 10, 2017 |
| Magnesium 1031 | Inorganic Chemical | 3 of 3 results | Aug 10, 2017 | Aug 10, 2017 |
| Manganese 1032 | Inorganic Chemical | 3 of 3 results | Aug 10, 2017 | Aug 10, 2017 |
| Potassium 1042 | Inorganic Chemical | 3 of 3 results | Aug 10, 2017 | Aug 10, 2017 |
| Residue, Total, Filterable 1057 | Water Quality | 3 of 3 results | Aug 10, 2017 | Aug 10, 2017 |
| Color 1905 | Water Quality | 3 of 3 results | Aug 10, 2017 | Aug 10, 2017 |
| Hardness, Total (As Caco3) 1915 | Water Quality | 3 of 3 results | Aug 10, 2017 | Aug 10, 2017 |
| Alkalinity, Total 1927 | Water Quality | 3 of 3 results | Aug 10, 2017 | Aug 10, 2017 |
| Calculated Sodium NACA | Water Quality | 3 of 3 results | Aug 10, 2017 | Aug 10, 2017 |
| PH, Field Result PHFD | Water Quality | 3 of 3 results | Aug 10, 2017 | Aug 10, 2017 |
| Alkalinity, Caco3 Stability 1067 | Water Quality | 2 of 2 results | Aug 10, 2017 | Aug 10, 2017 |
| Xylenes, Total 2955 | Organic Chemical | 2 of 44 results | Sep 20, 2011 | Aug 20, 2012 |
| Asbestos 1094 | Inorganic Chemical | 1 of 2 results | Apr 9, 2024 | Apr 9, 2024 |
| Monochloroacetic Acid 2450 | Organic Chemical | 1 of 16 results | Jul 30, 2018 | Jul 30, 2018 |
| Carbon Dioxide 1901 | Water Quality | 1 of 1 result | Aug 10, 2017 | Aug 10, 2017 |
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 1–10 of 505 samples, newest first — collected July 28, 2026 to July 30, 2026. The summary above covers all 505.
20 results from the 10 samples listed here: 13 detected, 7 not detected. Across the whole record it is 706 of 2,359. 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 |
|---|---|---|
|
||
| 89.3 ug/l , sample collected Jul 30, 2026, sampling point LC0023 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2028 |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 30, 2026, sampling point LC0023 | Lead 1030 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2028 |
|
||
| 185 ug/l , sample collected Jul 29, 2026, sampling point LC0012 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2028 |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 29, 2026, sampling point LC0012 | Lead 1030 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2028 |
|
||
| 318 ug/l , sample collected Jul 29, 2026, sampling point LC0008 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2028 |
| 1.7 ug/l , sample collected Jul 29, 2026, sampling point LC0008 | Lead 1030 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2028 |
|
||
| 106 ug/l , sample collected Jul 29, 2026, sampling point LC0009 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2028 |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 29, 2026, sampling point LC0009 | Lead 1030 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2028 |
|
||
| 206 ug/l , sample collected Jul 29, 2026, sampling point LC0010 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2028 |
| 1.1 ug/l , sample collected Jul 29, 2026, sampling point LC0010 | Lead 1030 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2028 |
|
||
| 101 ug/l , sample collected Jul 28, 2026, sampling point LC0013 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2028 |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 28, 2026, sampling point LC0013 | Lead 1030 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2028 |
|
||
| 165 ug/l , sample collected Jul 28, 2026, sampling point LC0030 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2028 |
| 5.2 ug/l , sample collected Jul 28, 2026, sampling point LC0030 | Lead 1030 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2028 |
|
||
| 126 ug/l , sample collected Jul 28, 2026, sampling point LC0045 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2028 |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 28, 2026, sampling point LC0045 | Lead 1030 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2028 |
|
||
| 134 ug/l , sample collected Jul 28, 2026, sampling point LC0002 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2028 |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 28, 2026, sampling point LC0002 | Lead 1030 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2028 |
|
||
| 181 ug/l , sample collected Jul 28, 2026, sampling point LC0044 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2028 |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 28, 2026, sampling point LC0044 | Lead 1030 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2028 |
-
- Collected
- Jul 30, 2026
- Sampling point
- LC0023 Location withheld
- Sample type
- Routine
- Lab sample
- 35054928020
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2026 – Dec 31, 2028
-
Copper, Free 1022 EPA method 200.8
- Result
- 89.3 ug/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Jul 29, 2026
- Sampling point
- LC0012 Location withheld
- Sample type
- Routine
- Lab sample
- 35054928018
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2026 – Dec 31, 2028
-
Copper, Free 1022 EPA method 200.8
- Result
- 185 ug/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Jul 29, 2026
- Sampling point
- LC0008 Location withheld
- Sample type
- Routine
- Lab sample
- 35054928013
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2026 – Dec 31, 2028
-
Copper, Free 1022 EPA method 200.8
- Result
- 318 ug/l
-
Lead 1030 EPA method 200.8
- Result
- 1.7 ug/l
-
- Collected
- Jul 29, 2026
- Sampling point
- LC0009 Location withheld
- Sample type
- Routine
- Lab sample
- 35054928002
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2026 – Dec 31, 2028
-
Copper, Free 1022 EPA method 200.8
- Result
- 106 ug/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Jul 29, 2026
- Sampling point
- LC0010 Location withheld
- Sample type
- Routine
- Lab sample
- 35054928001
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2026 – Dec 31, 2028
-
Copper, Free 1022 EPA method 200.8
- Result
- 206 ug/l
-
Lead 1030 EPA method 200.8
- Result
- 1.1 ug/l
-
- Collected
- Jul 28, 2026
- Sampling point
- LC0013 Location withheld
- Sample type
- Routine
- Lab sample
- 35054928019
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2026 – Dec 31, 2028
-
Copper, Free 1022 EPA method 200.8
- Result
- 101 ug/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Jul 28, 2026
- Sampling point
- LC0030 Location withheld
- Sample type
- Routine
- Lab sample
- 35054928017
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2026 – Dec 31, 2028
-
Copper, Free 1022 EPA method 200.8
- Result
- 165 ug/l
-
Lead 1030 EPA method 200.8
- Result
- 5.2 ug/l
-
- Collected
- Jul 28, 2026
- Sampling point
- LC0045 Location withheld
- Sample type
- Routine
- Lab sample
- 35054928016
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2026 – Dec 31, 2028
-
Copper, Free 1022 EPA method 200.8
- Result
- 126 ug/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Jul 28, 2026
- Sampling point
- LC0002 Location withheld
- Sample type
- Routine
- Lab sample
- 35054928015
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2026 – Dec 31, 2028
-
Copper, Free 1022 EPA method 200.8
- Result
- 134 ug/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Jul 28, 2026
- Sampling point
- LC0044 Location withheld
- Sample type
- Routine
- Lab sample
- 35054928014
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2026 – Dec 31, 2028
-
Copper, Free 1022 EPA method 200.8
- Result
- 181 ug/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 1 ug/l Minimum Reporting Level
Routine (10).