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
MS0300010 , Ingalls Shipbuilding
39 of the 68 analytes this system has been tested for have been detected at least once, across 785 samples on record.
The other 29 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 785 samples on record, detections range from February 5, 2002 to December 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 |
|---|---|---|---|---|
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 232 of 232 results | Mar 10, 2004 | Oct 29, 2025 |
| TTHM 2950 | Organic Chemical | 230 of 230 results | Mar 10, 2004 | Dec 10, 2025 |
| Copper, Free 1022 | Inorganic Chemical | 220 of 220 results | Jun 22, 2004 | Jul 28, 2024 |
| Chloroform 2941 | Organic Chemical | 165 of 165 results | Aug 17, 2006 | Dec 10, 2025 |
| Lead 1030 | Inorganic Chemical | 165 of 220 results | Jun 22, 2004 | Jul 28, 2024 |
| Bromodichloromethane 2943 | Organic Chemical | 164 of 165 results | Aug 17, 2006 | Dec 10, 2025 |
| Dibromochloromethane 2944 | Organic Chemical | 164 of 165 results | Aug 17, 2006 | Dec 10, 2025 |
| Bromoform 2942 | Organic Chemical | 163 of 165 results | Aug 17, 2006 | Dec 10, 2025 |
| Trichloroacetic Acid 2452 | Organic Chemical | 156 of 158 results | Jan 22, 2008 | Oct 29, 2025 |
| Dibromoacetic Acid 2454 | Organic Chemical | 156 of 158 results | Jan 22, 2008 | Oct 29, 2025 |
| Dichloroacetic Acid 2451 | Organic Chemical | 154 of 158 results | Jan 22, 2008 | Oct 29, 2025 |
| Monochloroacetic Acid 2450 | Organic Chemical | 39 of 158 results | Jan 22, 2008 | Nov 21, 2019 |
| Fluoride 1025 | Inorganic Chemical | 23 of 23 results | Feb 5, 2002 | Feb 11, 2025 |
| Barium 1010 | Inorganic Chemical | 20 of 20 results | Feb 5, 2002 | Feb 11, 2025 |
| Monobromoacetic Acid 2453 | Organic Chemical | 14 of 158 results | May 9, 2011 | Oct 21, 2020 |
| Chromium 1020 | Inorganic Chemical | 9 of 20 results | Feb 5, 2002 | May 17, 2022 |
| Arsenic 1005 | Inorganic Chemical | 8 of 20 results | Feb 8, 2006 | Feb 11, 2025 |
| Selenium 1045 | Inorganic Chemical | 8 of 20 results | Mar 14, 2005 | May 17, 2022 |
| Nickel 1036 | Inorganic Chemical | 4 of 20 results | Mar 14, 2005 | May 10, 2010 |
| Calcium 1016 | Inorganic Chemical | 3 of 3 results | Jun 2, 2017 | Jun 2, 2017 |
| Chloride 1017 | Inorganic Chemical | 3 of 3 results | Jun 2, 2017 | Jun 2, 2017 |
| Iron 1028 | Inorganic Chemical | 3 of 3 results | Jun 2, 2017 | Jun 2, 2017 |
| Magnesium 1031 | Inorganic Chemical | 3 of 3 results | Jun 2, 2017 | Jun 2, 2017 |
| Manganese 1032 | Inorganic Chemical | 3 of 3 results | Jun 2, 2017 | Jun 2, 2017 |
| Potassium 1042 | Inorganic Chemical | 3 of 3 results | Jun 2, 2017 | Jun 2, 2017 |
| Sodium 1052 | Inorganic Chemical | 3 of 3 results | Jun 2, 2017 | Jun 2, 2017 |
| Alkalinity, Caco3 Stability 1067 | Water Quality | 3 of 3 results | Jun 2, 2017 | Jun 2, 2017 |
| Carbon Dioxide 1901 | Water Quality | 3 of 3 results | Jun 2, 2017 | Jun 2, 2017 |
| Color 1905 | Water Quality | 3 of 3 results | Jun 2, 2017 | Jun 2, 2017 |
| Hardness, Total (As Caco3) 1915 | Water Quality | 3 of 3 results | Jun 2, 2017 | Jun 2, 2017 |
| Alkalinity, Total 1927 | Water Quality | 3 of 3 results | Jun 2, 2017 | Jun 2, 2017 |
| Calculated Sodium NACA | Water Quality | 3 of 3 results | Jun 2, 2017 | Jun 2, 2017 |
| PH, Field Result PHFD | Water Quality | 3 of 3 results | Jun 2, 2017 | Jun 2, 2017 |
| Sulfate 1055 | Inorganic Chemical | 3 of 10 results | Sep 22, 2003 | Sep 22, 2003 |
| Residue, Total, Filterable 1057 | Water Quality | 2 of 2 results | Jun 2, 2017 | Jun 2, 2017 |
| Carbon Tetrachloride 2982 | Organic Chemical | 2 of 27 results | Mar 1, 2007 | Mar 1, 2007 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 1 of 30 results | Aug 9, 2010 | Aug 9, 2010 |
| Nitrate 1040 | Inorganic Chemical | 1 of 30 results | Aug 9, 2010 | Aug 9, 2010 |
| Nitrite 1041 | Inorganic Chemical | 1 of 30 results | Apr 23, 2007 | Apr 23, 2007 |
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 61–70 of 785 samples, newest first — collected October 17, 2023 to January 31, 2024. The summary above covers all 785.
30 results from the 10 samples listed here: 9 detected, 21 not detected. Across the whole record it is 2,146 of 3,312. 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 |
|---|---|---|
|
||
| 62.3 ug/l , sample collected Jan 31, 2024 12:09, sampling point SM6 | TTHM 2950 EPA method 524.2 | Jan 1, 2024 – Mar 31, 2024 |
|
||
| 65.2 ug/l , sample collected Jan 31, 2024 12:21, sampling point SM4 | TTHM 2950 EPA method 524.2 | Jan 1, 2024 – Mar 31, 2024 |
|
||
| 59.4 ug/l , sample collected Jan 31, 2024 11:58, sampling point SM2 | TTHM 2950 EPA method 524.2 | Jan 1, 2024 – Mar 31, 2024 |
|
||
| 62.7 ug/l , sample collected Jan 31, 2024 12:34, sampling point SM1 | TTHM 2950 EPA method 524.2 | Jan 1, 2024 – Mar 31, 2024 |
|
||
| 15.3 ug/l , sample collected Jan 31, 2024 12:09, sampling point SM6 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jan 1, 2024 – Mar 31, 2024 |
|
||
| 15.3 ug/l , sample collected Jan 31, 2024 12:21, sampling point SM4 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jan 1, 2024 – Mar 31, 2024 |
|
||
| 14.4 ug/l , sample collected Jan 31, 2024 11:58, sampling point SM2 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jan 1, 2024 – Mar 31, 2024 |
|
||
| 14.8 ug/l , sample collected Jan 31, 2024 12:34, sampling point SM1 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jan 1, 2024 – Mar 31, 2024 |
|
||
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 31, 2024 12:34, sampling point TF101 | 1,2,4-Trichlorobenzene 2378 EPA method 524.2 | Jan 1, 2019 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 31, 2024 12:34, sampling point TF101 | Cis-1,2-Dichloroethylene 2380 EPA method 524.2 | Jan 1, 2019 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 31, 2024 12:34, sampling point TF101 | Xylenes, Total 2955 EPA method 524.2 | Jan 1, 2019 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 31, 2024 12:34, sampling point TF101 | Dichloromethane 2964 EPA method 524.2 | Jan 1, 2019 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 31, 2024 12:34, sampling point TF101 | O-Dichlorobenzene 2968 EPA method 524.2 | Jan 1, 2019 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 31, 2024 12:34, sampling point TF101 | P-Dichlorobenzene 2969 EPA method 524.2 | Jan 1, 2019 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 31, 2024 12:34, sampling point TF101 | Vinyl Chloride 2976 EPA method 524.2 | Jan 1, 2019 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 31, 2024 12:34, sampling point TF101 | 1,1-Dichloroethylene 2977 EPA method 524.2 | Jan 1, 2019 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 31, 2024 12:34, sampling point TF101 | Trans-1,2-Dichloroethylene 2979 EPA method 524.2 | Jan 1, 2019 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 31, 2024 12:34, sampling point TF101 | 1,2-Dichloroethane 2980 EPA method 524.2 | Jan 1, 2019 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 31, 2024 12:34, sampling point TF101 | 1,1,1-Trichloroethane 2981 EPA method 524.2 | Jan 1, 2019 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 31, 2024 12:34, sampling point TF101 | Carbon Tetrachloride 2982 EPA method 524.2 | Jan 1, 2019 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 31, 2024 12:34, sampling point TF101 | 1,2-Dichloropropane 2983 EPA method 524.2 | Jan 1, 2019 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 31, 2024 12:34, sampling point TF101 | Trichloroethylene 2984 EPA method 524.2 | Jan 1, 2019 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 31, 2024 12:34, sampling point TF101 | 1,1,2-Trichloroethane 2985 EPA method 524.2 | Jan 1, 2019 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 31, 2024 12:34, sampling point TF101 | Tetrachloroethylene 2987 EPA method 524.2 | Jan 1, 2019 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 31, 2024 12:34, sampling point TF101 | Chlorobenzene 2989 EPA method 524.2 | Jan 1, 2019 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 31, 2024 12:34, sampling point TF101 | Benzene 2990 EPA method 524.2 | Jan 1, 2019 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 31, 2024 12:34, sampling point TF101 | Toluene 2991 EPA method 524.2 | Jan 1, 2019 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 31, 2024 12:34, sampling point TF101 | Ethylbenzene 2992 EPA method 524.2 | Jan 1, 2019 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 31, 2024 12:34, sampling point TF101 | Styrene 2996 EPA method 524.2 | Jan 1, 2019 – Dec 31, 2024 |
|
||
| 64.2 ug/l , sample collected Oct 17, 2023 13:00, sampling point SM6 | TTHM 2950 EPA method 524.2 | Oct 1, 2023 – Dec 31, 2023 |
-
- Collected
- Jan 31, 2024 12:09
- Sampling point
- SM6 At Fab Shop
- Sample type
- Routine
- Lab sample
- TH-240201-004
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2024 – Mar 31, 2024
-
TTHM 2950 EPA method 524.2
- Result
- 62.3 ug/l
-
- Collected
- Jan 31, 2024 12:21
- Sampling point
- SM4 Panel Shop
- Sample type
- Routine
- Lab sample
- TH-240201-003
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2024 – Mar 31, 2024
-
TTHM 2950 EPA method 524.2
- Result
- 65.2 ug/l
-
- Collected
- Jan 31, 2024 11:58
- Sampling point
- SM2 At Multi-Purpose Whse
- Sample type
- Routine
- Lab sample
- TH-240201-002
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2024 – Mar 31, 2024
-
TTHM 2950 EPA method 524.2
- Result
- 59.4 ug/l
-
- Collected
- Jan 31, 2024 12:34
- Sampling point
- SM1 Control Room Near Well 2
- Sample type
- Routine
- Lab sample
- TH-240201-001
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2024 – Mar 31, 2024
-
TTHM 2950 EPA method 524.2
- Result
- 62.7 ug/l
-
- Collected
- Jan 31, 2024 12:09
- Sampling point
- SM6 At Fab Shop
- Sample type
- Routine
- Lab sample
- HA-240201-004
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2024 – Mar 31, 2024
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 15.3 ug/l
-
- Collected
- Jan 31, 2024 12:21
- Sampling point
- SM4 Panel Shop
- Sample type
- Routine
- Lab sample
- HA-240201-003
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2024 – Mar 31, 2024
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 15.3 ug/l
-
- Collected
- Jan 31, 2024 11:58
- Sampling point
- SM2 At Multi-Purpose Whse
- Sample type
- Routine
- Lab sample
- HA-240201-002
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2024 – Mar 31, 2024
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 14.4 ug/l
-
- Collected
- Jan 31, 2024 12:34
- Sampling point
- SM1 Control Room Near Well 2
- Sample type
- Routine
- Lab sample
- HA-240201-001
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2024 – Mar 31, 2024
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 14.8 ug/l
-
- Collected
- Jan 31, 2024 12:34
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- VO-240201-002
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2019 – Dec 31, 2024
-
1,2,4-Trichlorobenzene 2378 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Cis-1,2-Dichloroethylene 2380 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Xylenes, Total 2955 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Dichloromethane 2964 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
O-Dichlorobenzene 2968 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
P-Dichlorobenzene 2969 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Vinyl Chloride 2976 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
1,1-Dichloroethylene 2977 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Trans-1,2-Dichloroethylene 2979 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
1,2-Dichloroethane 2980 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
1,1,1-Trichloroethane 2981 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Carbon Tetrachloride 2982 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
1,2-Dichloropropane 2983 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Trichloroethylene 2984 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
1,1,2-Trichloroethane 2985 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Tetrachloroethylene 2987 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Chlorobenzene 2989 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Benzene 2990 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Toluene 2991 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Ethylbenzene 2992 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Styrene 2996 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Oct 17, 2023 13:00
- Sampling point
- SM6 At Fab Shop
- Sample type
- Routine
- Lab sample
- TH-231018-021
- Laboratory
- MSDH Lab
- Monitoring period
- Oct 1, 2023 – Dec 31, 2023
-
TTHM 2950 EPA method 524.2
- Result
- 64.2 ug/l
Routine (10).