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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

MS0240273 , HCUA-North

9 of the 42 analytes this system has been tested for have been detected at least once, across 63 samples on record.

The other 33 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 63 samples on record, detections range from December 9, 2014 to July 22, 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.

Every analyte ever detected for HCUA-North, with how many results found it and when it was first and last detected. Covers the whole record, not only the samples listed below.
Analyte Kind Detected in First detected Last detected
Xylenes, Total 2955 Organic Chemical 11 of 27 results Mar 23, 2015 Jul 8, 2026
Ethylbenzene 2992 Organic Chemical 8 of 27 results Mar 23, 2015 Oct 10, 2023
Fluoride 1025 Inorganic Chemical 4 of 4 results Mar 9, 2015 Jul 22, 2026
Barium 1010 Inorganic Chemical 4 of 4 results Mar 9, 2015 Jun 17, 2026
Sodium 1052 Inorganic Chemical 2 of 2 results Feb 4, 2025 Feb 4, 2025
Chromium 1020 Inorganic Chemical 2 of 4 results Mar 9, 2015 Mar 9, 2015
Gross Alpha, Incl. Radon & U 4002 Radionuclide 2 of 4 results Dec 9, 2014 Dec 9, 2014
Nitrate-Nitrite 1038 Inorganic Chemical 1 of 10 results Oct 25, 2022 Oct 25, 2022
Nitrate 1040 Inorganic Chemical 1 of 10 results Oct 25, 2022 Oct 25, 2022

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 61–63 of 63 samples, newest first — collected December 9, 2014 to December 9, 2014. The summary above covers all 63.

7 results from the 3 samples listed here: 1 detected, 6 not detected. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.

Chemical and radiological sample results for HCUA-North, every result from 61 to 63 of 63 samples shown, newest first. Not detected means the amount was below the level the laboratory can reliably report, which is given beside it.
Result Analyte Monitoring period
Collected
Dec 9, 2014 14:00
Sampling point
TF102 Treatment Facility TF102
Sample type
Routine
Lab sample
201412150012
Laboratory
Radiation Safety Engineering
Not detected below 0.32 pci/l Minimum Reporting Level , sample collected Dec 9, 2014 14:00, sampling point TF102 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.253 pci/l Minimum Reporting Level , sample collected Dec 9, 2014 14:00, sampling point TF102 Radium-226 4020 EPA method 903.1 Oct 1, 2014 – Dec 31, 2014
Not detected below 0.32 pci/l Minimum Reporting Level , sample collected Dec 9, 2014 14:00, sampling point TF102 Radium-228 4030 EPA method 904 Oct 1, 2014 – Dec 31, 2014
Collected
Dec 9, 2014 14:30
Sampling point
TF101 Treatment Facility TF101
Sample type
Routine
Lab sample
201412150011GA
Laboratory
Radiation Safety Engineering
0.4 pci/l , sample collected Dec 9, 2014 14:30, sampling point TF101 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Oct 1, 2014 – Dec 31, 2014
Collected
Dec 9, 2014 14:30
Sampling point
TF101 Treatment Facility TF101
Sample type
Routine
Lab sample
201412150011
Laboratory
Radiation Safety Engineering
Not detected below 0.33 pci/l Minimum Reporting Level , sample collected Dec 9, 2014 14:30, sampling point TF101 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.185 pci/l Minimum Reporting Level , sample collected Dec 9, 2014 14:30, sampling point TF101 Radium-226 4020 EPA method 903.1 Oct 1, 2014 – Dec 31, 2014
Not detected below 0.33 pci/l Minimum Reporting Level , sample collected Dec 9, 2014 14:30, sampling point TF101 Radium-228 4030 EPA method 904 Oct 1, 2014 – Dec 31, 2014

Routine (3).