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 11–20 of 505 samples, newest first — collected July 27, 2026 to July 28, 2026. The summary above covers all 505.
20 results from the 10 samples listed here: 14 detected, 6 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 |
|---|---|---|
|
||
| 189 ug/l , sample collected Jul 28, 2026, sampling point LC0011 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2028 |
| 2 ug/l , sample collected Jul 28, 2026, sampling point LC0011 | Lead 1030 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2028 |
|
||
| 141 ug/l , sample collected Jul 28, 2026, sampling point LC0001 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2028 |
| 1.5 ug/l , sample collected Jul 28, 2026, sampling point LC0001 | Lead 1030 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2028 |
|
||
| 221 ug/l , sample collected Jul 28, 2026, sampling point LC0016 | 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 LC0016 | Lead 1030 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2028 |
|
||
| 205 ug/l , sample collected Jul 28, 2026, sampling point LC0021 | 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 LC0021 | Lead 1030 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2028 |
|
||
| 156 ug/l , sample collected Jul 28, 2026, sampling point LC0032 | 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 LC0032 | Lead 1030 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2028 |
|
||
| 162 ug/l , sample collected Jul 28, 2026, sampling point LC0033 | 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 LC0033 | Lead 1030 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2028 |
|
||
| 178 ug/l , sample collected Jul 28, 2026, sampling point LC0027 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2028 |
| 5.3 ug/l , sample collected Jul 28, 2026, sampling point LC0027 | Lead 1030 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2028 |
|
||
| 152 ug/l , sample collected Jul 28, 2026, sampling point LC0022 | 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 LC0022 | Lead 1030 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2028 |
|
||
| 222 ug/l , sample collected Jul 27, 2026, sampling point LC0031 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2028 |
| 1.9 ug/l , sample collected Jul 27, 2026, sampling point LC0031 | Lead 1030 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2028 |
|
||
| 134 ug/l , sample collected Jul 27, 2026, sampling point LC0020 | 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 27, 2026, sampling point LC0020 | Lead 1030 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2028 |
-
- Collected
- Jul 28, 2026
- Sampling point
- LC0011 Location withheld
- Sample type
- Routine
- Lab sample
- 35054928012
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2026 – Dec 31, 2028
-
Copper, Free 1022 EPA method 200.8
- Result
- 189 ug/l
-
Lead 1030 EPA method 200.8
- Result
- 2 ug/l
-
- Collected
- Jul 28, 2026
- Sampling point
- LC0001 Location withheld
- Sample type
- Routine
- Lab sample
- 35054928011
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2026 – Dec 31, 2028
-
Copper, Free 1022 EPA method 200.8
- Result
- 141 ug/l
-
Lead 1030 EPA method 200.8
- Result
- 1.5 ug/l
-
- Collected
- Jul 28, 2026
- Sampling point
- LC0016 Location withheld
- Sample type
- Routine
- Lab sample
- 35054928010
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2026 – Dec 31, 2028
-
Copper, Free 1022 EPA method 200.8
- Result
- 221 ug/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Jul 28, 2026
- Sampling point
- LC0021 Location withheld
- Sample type
- Routine
- Lab sample
- 35054928009
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2026 – Dec 31, 2028
-
Copper, Free 1022 EPA method 200.8
- Result
- 205 ug/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Jul 28, 2026
- Sampling point
- LC0032 Location withheld
- Sample type
- Routine
- Lab sample
- 35054928007
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2026 – Dec 31, 2028
-
Copper, Free 1022 EPA method 200.8
- Result
- 156 ug/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Jul 28, 2026
- Sampling point
- LC0033 Location withheld
- Sample type
- Routine
- Lab sample
- 35054928006
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2026 – Dec 31, 2028
-
Copper, Free 1022 EPA method 200.8
- Result
- 162 ug/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Jul 28, 2026
- Sampling point
- LC0027 Location withheld
- Sample type
- Routine
- Lab sample
- 35054928005
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2026 – Dec 31, 2028
-
Copper, Free 1022 EPA method 200.8
- Result
- 178 ug/l
-
Lead 1030 EPA method 200.8
- Result
- 5.3 ug/l
-
- Collected
- Jul 28, 2026
- Sampling point
- LC0022 Location withheld
- Sample type
- Routine
- Lab sample
- 35054928004
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2026 – Dec 31, 2028
-
Copper, Free 1022 EPA method 200.8
- Result
- 152 ug/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Jul 27, 2026
- Sampling point
- LC0031 Location withheld
- Sample type
- Routine
- Lab sample
- 35054928008
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2026 – Dec 31, 2028
-
Copper, Free 1022 EPA method 200.8
- Result
- 222 ug/l
-
Lead 1030 EPA method 200.8
- Result
- 1.9 ug/l
-
- Collected
- Jul 27, 2026
- Sampling point
- LC0020 Location withheld
- Sample type
- Routine
- Lab sample
- 35054928003
- 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
Routine (10).