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
MS0240272 , HCUA-East
24 of the 55 analytes this system has been tested for have been detected at least once, across 320 samples on record.
The other 31 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 320 samples on record, detections range from March 9, 2015 to June 24, 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 |
|---|---|---|---|---|
| Xylenes, Total 2955 | Organic Chemical | 56 of 146 results | Mar 12, 2015 | Mar 6, 2024 |
| Barium 1010 | Inorganic Chemical | 21 of 21 results | Mar 9, 2015 | Feb 12, 2025 |
| Fluoride 1025 | Inorganic Chemical | 21 of 21 results | Mar 9, 2015 | Feb 12, 2025 |
| Sodium 1052 | Inorganic Chemical | 15 of 15 results | Sep 18, 2019 | Feb 6, 2024 |
| Ethylbenzene 2992 | Organic Chemical | 15 of 146 results | Mar 12, 2015 | Oct 29, 2019 |
| Copper, Free 1022 | Inorganic Chemical | 13 of 15 results | Mar 12, 2025 | Jun 24, 2026 |
| Chromium 1020 | Inorganic Chemical | 10 of 21 results | Mar 9, 2015 | Feb 12, 2025 |
| Carbon Tetrachloride 2982 | Organic Chemical | 9 of 146 results | Apr 21, 2015 | Oct 3, 2023 |
| TTHM 2950 | Organic Chemical | 8 of 8 results | Mar 27, 2024 | Jun 23, 2026 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 7 of 7 results | Mar 27, 2024 | Jun 23, 2026 |
| Chloroform 2941 | Organic Chemical | 5 of 5 results | Dec 16, 2025 | Jun 23, 2026 |
| Bromodichloromethane 2943 | Organic Chemical | 5 of 5 results | Dec 16, 2025 | Jun 23, 2026 |
| Dibromochloromethane 2944 | Organic Chemical | 5 of 5 results | Dec 16, 2025 | Jun 23, 2026 |
| Dichloroacetic Acid 2451 | Organic Chemical | 4 of 4 results | Feb 24, 2026 | Jun 23, 2026 |
| Trichloroacetic Acid 2452 | Organic Chemical | 4 of 4 results | Feb 24, 2026 | Jun 23, 2026 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 4 of 10 results | Sep 14, 2015 | Dec 15, 2015 |
| Combined Radium (-226 & -228) 4010 | Radionuclide | 3 of 10 results | Dec 15, 2015 | Dec 15, 2015 |
| Radium-226 4020 | Radionuclide | 3 of 10 results | Dec 15, 2015 | Dec 15, 2015 |
| Arsenic 1005 | Inorganic Chemical | 2 of 21 results | Oct 23, 2018 | Feb 12, 2025 |
| Nickel 1036 | Inorganic Chemical | 2 of 21 results | Oct 23, 2018 | Feb 12, 2025 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 2 of 57 results | Feb 6, 2024 | Feb 6, 2024 |
| Dichloromethane 2964 | Organic Chemical | 2 of 146 results | Aug 1, 2017 | Oct 21, 2020 |
| Nitrate 1040 | Inorganic Chemical | 1 of 57 results | Feb 6, 2024 | Feb 6, 2024 |
| Nitrite 1041 | Inorganic Chemical | 1 of 57 results | Feb 6, 2024 | Feb 6, 2024 |
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 271–280 of 320 samples, newest first — collected September 14, 2015 to September 14, 2015. The summary above covers all 320.
20 results from the 10 samples listed here: 2 detected, 18 not detected. Across the whole record it is 218 of 3,642. 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 |
|---|---|---|
|
||
| Not detected below 0.35 pci/l Minimum Reporting Level , sample collected Sep 14, 2015 09:49, sampling point TF105 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Jul 1, 2015 – Sep 30, 2015 |
|
||
| Not detected below 0.28 pci/l Minimum Reporting Level , sample collected Sep 14, 2015 09:49, sampling point TF105 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.256 pci/l Minimum Reporting Level , sample collected Sep 14, 2015 09:49, sampling point TF105 | Radium-226 4020 EPA method 903.1 | Jul 1, 2015 – Sep 30, 2015 |
| Not detected below 0.28 pci/l Minimum Reporting Level , sample collected Sep 14, 2015 09:49, sampling point TF105 | Radium-228 4030 EPA method 904 | Jul 1, 2015 – Sep 30, 2015 |
|
||
| Not detected below 0.348 pci/l Minimum Reporting Level , sample collected Sep 14, 2015 11:22, sampling point TF104 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Jul 1, 2015 – Sep 30, 2015 |
|
||
| Not detected below 0.33 pci/l Minimum Reporting Level , sample collected Sep 14, 2015 11:22, sampling point TF104 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.299 pci/l Minimum Reporting Level , sample collected Sep 14, 2015 11:22, sampling point TF104 | Radium-226 4020 EPA method 903.1 | Jul 1, 2015 – Sep 30, 2015 |
| Not detected below 0.33 pci/l Minimum Reporting Level , sample collected Sep 14, 2015 11:22, sampling point TF104 | Radium-228 4030 EPA method 904 | Jul 1, 2015 – Sep 30, 2015 |
|
||
| 0.5 pci/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Sep 14, 2015 10:46, sampling point TF103 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Jul 1, 2015 – Sep 30, 2015 |
|
||
| Not detected below 0.29 pci/l Minimum Reporting Level , sample collected Sep 14, 2015 10:46, sampling point TF103 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.259 pci/l Minimum Reporting Level , sample collected Sep 14, 2015 10:46, sampling point TF103 | Radium-226 4020 EPA method 903.1 | Jul 1, 2015 – Sep 30, 2015 |
| Not detected below 0.29 pci/l Minimum Reporting Level , sample collected Sep 14, 2015 10:46, sampling point TF103 | Radium-228 4030 EPA method 904 | Jul 1, 2015 – Sep 30, 2015 |
|
||
| 0.6 pci/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Sep 14, 2015 08:51, sampling point TF102 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Jul 1, 2015 – Sep 30, 2015 |
|
||
| Not detected below 0.51 pci/l Minimum Reporting Level , sample collected Sep 14, 2015 08:51, sampling point TF102 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.284 pci/l Minimum Reporting Level , sample collected Sep 14, 2015 08:51, sampling point TF102 | Radium-226 4020 EPA method 903.1 | Jul 1, 2015 – Sep 30, 2015 |
| Not detected below 0.51 pci/l Minimum Reporting Level , sample collected Sep 14, 2015 08:51, sampling point TF102 | Radium-228 4030 EPA method 904 | Jul 1, 2015 – Sep 30, 2015 |
|
||
| Not detected below 0.34 pci/l Minimum Reporting Level , sample collected Sep 14, 2015 12:28, sampling point TF101 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Jul 1, 2015 – Sep 30, 2015 |
|
||
| Not detected below 0.46 pci/l Minimum Reporting Level , sample collected Sep 14, 2015 12:28, sampling point TF101 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.268 pci/l Minimum Reporting Level , sample collected Sep 14, 2015 12:28, sampling point TF101 | Radium-226 4020 EPA method 903.1 | Jul 1, 2015 – Sep 30, 2015 |
| Not detected below 0.46 pci/l Minimum Reporting Level , sample collected Sep 14, 2015 12:28, sampling point TF101 | Radium-228 4030 EPA method 904 | Jul 1, 2015 – Sep 30, 2015 |
-
- Collected
- Sep 14, 2015 09:49
- Sampling point
- TF105 Treatment Facility TF105
- Sample type
- Routine
- Lab sample
- 201509180154GA
- Laboratory
- Radiation Safety Engineering
- Monitoring period
- Jul 1, 2015 – Sep 30, 2015
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- Not detected below 0.35 pci/l Minimum Reporting Level
-
- Collected
- Sep 14, 2015 09:49
- Sampling point
- TF105 Treatment Facility TF105
- Sample type
- Routine
- Lab sample
- 201509180154
- Laboratory
- Radiation Safety Engineering
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.28 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.256 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2015 – Sep 30, 2015
-
Radium-228 4030 EPA method 904
- Result
- Not detected below 0.28 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2015 – Sep 30, 2015
-
- Collected
- Sep 14, 2015 11:22
- Sampling point
- TF104 Treatment Facility TF104
- Sample type
- Routine
- Lab sample
- 201509180153GA
- Laboratory
- Radiation Safety Engineering
- Monitoring period
- Jul 1, 2015 – Sep 30, 2015
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- Not detected below 0.348 pci/l Minimum Reporting Level
-
- Collected
- Sep 14, 2015 11:22
- Sampling point
- TF104 Treatment Facility TF104
- Sample type
- Routine
- Lab sample
- 201509180153
- Laboratory
- Radiation Safety Engineering
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.33 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.299 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2015 – Sep 30, 2015
-
Radium-228 4030 EPA method 904
- Result
- Not detected below 0.33 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2015 – Sep 30, 2015
-
- Collected
- Sep 14, 2015 10:46
- Sampling point
- TF103 Treatment Facility TF103
- Sample type
- Routine
- Lab sample
- 201509180152GA
- Laboratory
- Radiation Safety Engineering
- Monitoring period
- Jul 1, 2015 – Sep 30, 2015
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- 0.5 pci/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType.
-
- Collected
- Sep 14, 2015 10:46
- Sampling point
- TF103 Treatment Facility TF103
- Sample type
- Routine
- Lab sample
- 201509180152
- Laboratory
- Radiation Safety Engineering
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.29 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.259 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2015 – Sep 30, 2015
-
Radium-228 4030 EPA method 904
- Result
- Not detected below 0.29 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2015 – Sep 30, 2015
-
- Collected
- Sep 14, 2015 08:51
- Sampling point
- TF102 Treatment Facility TF102
- Sample type
- Routine
- Lab sample
- 201509180151GA
- Laboratory
- Radiation Safety Engineering
- Monitoring period
- Jul 1, 2015 – Sep 30, 2015
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- 0.6 pci/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType.
-
- Collected
- Sep 14, 2015 08:51
- Sampling point
- TF102 Treatment Facility TF102
- Sample type
- Routine
- Lab sample
- 201509180151
- Laboratory
- Radiation Safety Engineering
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.51 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.284 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2015 – Sep 30, 2015
-
Radium-228 4030 EPA method 904
- Result
- Not detected below 0.51 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2015 – Sep 30, 2015
-
- Collected
- Sep 14, 2015 12:28
- Sampling point
- TF101 Treatment Facility TF101
- Sample type
- Routine
- Lab sample
- 201509180150GA
- Laboratory
- Radiation Safety Engineering
- Monitoring period
- Jul 1, 2015 – Sep 30, 2015
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- Not detected below 0.34 pci/l Minimum Reporting Level
-
- Collected
- Sep 14, 2015 12:28
- Sampling point
- TF101 Treatment Facility TF101
- Sample type
- Routine
- Lab sample
- 201509180150
- Laboratory
- Radiation Safety Engineering
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.46 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.268 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2015 – Sep 30, 2015
-
Radium-228 4030 EPA method 904
- Result
- Not detected below 0.46 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2015 – Sep 30, 2015
Routine (10).