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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

MS0300011 , Chevron Usa

10 samples have been analysed for Total Haloacetic Acids (Haa5) at Chevron Usa.

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.

Showing samples collected between September 26, 2024 and September 26, 2026. That is this page’s default, not a limit on what the agency records.

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Every Total Haloacetic Acids (Haa5) result

The 10 samples analysed for this analyte collected between September 26, 2024 and September 26, 2026 are listed below, newest first.

10 Total Haloacetic Acids (Haa5) results from the 10 samples listed here: 10 detected, 0 not detected.

Total Haloacetic Acids (Haa5) results for Chevron Usa, from the 10 samples 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
Dec 9, 2025 13:00
Sampling point
SM2 Shipping Maintenance
Sample type
Routine
Lab sample
HA-251210-002
Laboratory
MSDH Lab
19.6 ug/l , sample collected Dec 9, 2025 13:00, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Not recorded
Collected
Dec 9, 2025 12:30
Sampling point
SM1 Utilities Control
Sample type
Routine
Lab sample
HA-251210-001
Laboratory
MSDH Lab
24.8 ug/l , sample collected Dec 9, 2025 12:30, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Not recorded
Collected
Sep 24, 2025 13:30
Sampling point
SM2 Shipping Maintenance
Sample type
Routine
Lab sample
HA-250925-006
Laboratory
MSDH Lab
23.4 ug/l , sample collected Sep 24, 2025 13:30, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jul 1, 2025 – Sep 30, 2025
Collected
Sep 24, 2025 13:00
Sampling point
SM1 Utilities Control
Sample type
Routine
Lab sample
HA-250925-005
Laboratory
MSDH Lab
21.2 ug/l , sample collected Sep 24, 2025 13:00, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jul 1, 2025 – Sep 30, 2025
Collected
Jun 25, 2025 14:00
Sampling point
SM2 Shipping Maintenance
Sample type
Routine
Lab sample
HA-250626-006
Laboratory
MSDH Lab
22.8 ug/l , sample collected Jun 25, 2025 14:00, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Apr 1, 2025 – Jun 30, 2025
Collected
Jun 25, 2025 13:30
Sampling point
SM1 Utilities Control
Sample type
Routine
Lab sample
HA-250626-005
Laboratory
MSDH Lab
23 ug/l , sample collected Jun 25, 2025 13:30, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Apr 1, 2025 – Jun 30, 2025
Collected
Mar 19, 2025 14:00
Sampling point
SM2 Shipping Maintenance
Sample type
Routine
Lab sample
HA-250320-103
Laboratory
MSDH Lab
21.7 ug/l , sample collected Mar 19, 2025 14:00, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2025 – Mar 31, 2025
Collected
Mar 19, 2025 13:30
Sampling point
SM1 Utilities Control
Sample type
Routine
Lab sample
HA-250320-102
Laboratory
MSDH Lab
24.6 ug/l , sample collected Mar 19, 2025 13:30, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2025 – Mar 31, 2025
Collected
Dec 10, 2024 13:30
Sampling point
SM2 Shipping Maintenance
Sample type
Routine
Lab sample
HA-241211-002
Laboratory
MSDH Lab
34.9 ug/l , sample collected Dec 10, 2024 13:30, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Oct 1, 2024 – Dec 31, 2024
Collected
Dec 10, 2024 13:00
Sampling point
SM1 Utilities Control
Sample type
Routine
Lab sample
HA-241211-001
Laboratory
MSDH Lab
34.4 ug/l , sample collected Dec 10, 2024 13:00, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Oct 1, 2024 – Dec 31, 2024

Routine (10).