Forensic evidence record · ev-ca1510032-f-california-city-lithium
Lithium
A single published measurement record with its qualifier, sampling context, source identifier, method note, and stated limitations kept together.
Published evidence record
49.7 µg/LReported measurementSource observations (12)
- lithium — Sample date: 2023-12-19
Detected above reporting limit. = 22.6 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample AGL2730-01 · Method EPA 200.7
- lithium — Sample date: 2024-03-21
Detected above reporting limit. = 18.9 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample AHC2798-01 · Method EPA 200.7
- lithium — Sample date: 2024-06-13
Detected above reporting limit. = 22.4 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample AHF1950-01 · Method EPA 200.7
- lithium — Sample date: 2024-09-10
Detected above reporting limit. = 20.5 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample AHI1423-01 · Method EPA 200.7
- lithium — Sample date: 2023-12-19
Detected above reporting limit. = 40.6 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample AGL2730-03 · Method EPA 200.7
- lithium — Sample date: 2024-06-13
Detected above reporting limit. = 33.3 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample AHF1947-01 · Method EPA 200.7
- lithium — Sample date: 2023-12-19
Detected above reporting limit. = 37.5 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample AGL2730-05 · Method EPA 200.7
- lithium — Sample date: 2024-06-13
Detected above reporting limit. = 30 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample AHF1947-03 · Method EPA 200.7
- lithium — Sample date: 2023-12-19
Detected above reporting limit. = 49.7 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample AGL2730-07 · Method EPA 200.7
- lithium — Sample date: 2024-06-13
Detected above reporting limit. = 39.7 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample AHF1947-05 · Method EPA 200.7
- lithium — Sample date: 2023-12-19
Detected above reporting limit. = 42.2 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample AGL2730-09 · Method EPA 200.7
- lithium — Sample date: 2024-06-13
Detected above reporting limit. = 32.5 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample AHF1947-07 · Method EPA 200.7
Measurement evidence
- Analyte
- Lithium
- Result qualifier
- =
- Reference basis
- 10.0 µg/L EPA health reference level (screening, not a legal limit)
- Sampling location
- Entry Point to Distribution
- Water system ID
- CA1510032
- Source ID
- src-ucmr5-2024
Laboratory context
No laboratory method note was published with this record.
Sampling context
This result represents a entry point to distribution sample. It does not establish the condition at every distribution point or household tap.
Record limitation
System-level entry-point monitoring; not a measurement of the water at an individual household tap.
Source provenance
UCMR5 Analytical Results
Fifth Unregulated Contaminant Monitoring Rule (UCMR5) — PFAS occurrence data
U.S. Environmental Protection Agency · Published 2024
Nationwide entry-point monitoring for 29 PFAS and lithium under the fifth UCMR cycle. Results are entry-point-to-distribution samples, not household-tap measurements.
How to interpret this record
This page preserves one measurement. Interpretation requires its qualifier, reporting limit, reference basis, date, sampling location, and limitations; the number alone is not a safety verdict.
Review finding states →