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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.

Total Haloacetic Acids (Haa5) results

MS0010007 , Oakland Water Works

22 samples have been analysed for Total Haloacetic Acids (Haa5) at Oakland Water Works.

This is one analyte out of the system’s whole record. For what has ever been detected here, and when, see all chemical and radiological results; for everything the system is tested for, see the analyte list.

What counts as a non-detect is defined in the help: Less than Indicator. This system’s violations.

No date range is applied: this list draws on every sample on record. Show the last two years only.

Every Total Haloacetic Acids (Haa5) result

The table below lists 1–10 of 22 samples, newest first — collected December 11, 2023 to July 27, 2026.

10 Total Haloacetic Acids (Haa5) results from the 10 samples listed here: 10 detected, 0 not detected. Those samples also carried 45 results for other analytes, which are on the full results page.

We withheld the location of 2 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 The location on record identifies a private home, and we do not publish those.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.

Total Haloacetic Acids (Haa5) results for Oakland Water Works, from 1 to 10 of 22 samples shown analysed for it, newest first. This view leaves out other analytes on the same samples. Not detected means the amount was below the level the laboratory can reliably report, which is given beside it.
Result Analyte Monitoring period
Collected
Jul 27, 2026 11:15
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
810-201658-1
Laboratory
Eurofins Eaton Analytical South Bend in
21 ug/l , sample collected Jul 27, 2026 11:15, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2026 – Dec 31, 2026
Collected
Jul 23, 2025 08:42
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
810-157126-2
Laboratory
Eurofins Eaton Analytical South Bend in
17.3 ug/l , sample collected Jul 23, 2025 08:42, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jul 1, 2025 – Sep 30, 2025
Collected
Jul 23, 2025 08:18
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
810-157126-1
Laboratory
Eurofins Eaton Analytical South Bend in
11 ug/l , sample collected Jul 23, 2025 08:18, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jul 1, 2025 – Sep 30, 2025
Collected
Apr 7, 2025 09:05
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
HA-250408-008
Laboratory
MSDH Lab
21.6 ug/l , sample collected Apr 7, 2025 09:05, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Apr 1, 2025 – Jun 30, 2025
Collected
Apr 7, 2025 09:22
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
HA-250408-007
Laboratory
MSDH Lab
26.8 ug/l , sample collected Apr 7, 2025 09:22, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Apr 1, 2025 – Jun 30, 2025
Collected
Mar 5, 2025 09:55
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
HA-250306-004
Laboratory
MSDH Lab
23.7 ug/l , sample collected Mar 5, 2025 09:55, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2025 – Dec 31, 2025
Collected
Mar 21, 2024 10:29
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
HA-240322-002
Laboratory
MSDH Lab
11.4 ug/l , sample collected Mar 21, 2024 10:29, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2024 – Dec 31, 2024
Collected
Mar 21, 2024 09:55
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
HA-240322-003
Laboratory
MSDH Lab
12.1 ug/l , sample collected Mar 21, 2024 09:55, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2024 – Dec 31, 2024
Collected
Dec 11, 2023 10:38
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
810-87875-2
Laboratory
Eurofins Eaton Analytical South Bend in
13.6 ug/l , sample collected Dec 11, 2023 10:38, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Oct 1, 2023 – Dec 31, 2023
Collected
Dec 11, 2023 09:46
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
810-87875-1
Laboratory
Eurofins Eaton Analytical South Bend in
17.2 ug/l , sample collected Dec 11, 2023 09:46, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Oct 1, 2023 – Dec 31, 2023

Routine (10).