Forensic evidence record · ev-ca3010079-f-el-toro-district-lithium
Lithium
A single published measurement record with its qualifier, sampling context, source identifier, method note, and stated limitations kept together.
Published evidence record
45 µg/LReported measurementSource observations (16)
- lithium — Sample date: 2023-04-27
Below reporting limit. < Result value not available µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample C3D3614-01 · Method EPA 200.7
- lithium — Sample date: 2023-07-25
Detected above reporting limit. = 28 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample C3G3595-01 · Method EPA 200.7
- lithium — Sample date: 2023-10-26
Detected above reporting limit. = 32 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample C3J3924-01 · Method EPA 200.7
- lithium — Sample date: 2024-01-31
Detected above reporting limit. = 42 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample C4A4127-01 · Method EPA 200.7
- lithium — Sample date: 2023-04-27
Below reporting limit. < Result value not available µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample C3D3614-03 · Method EPA 200.7
- lithium — Sample date: 2023-07-25
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 C3G3595-03 · Method EPA 200.7
- lithium — Sample date: 2023-10-26
Detected above reporting limit. = 31 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample C3J3924-03 · Method EPA 200.7
- lithium — Sample date: 2024-01-31
Detected above reporting limit. = 45 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample C4A4127-03 · Method EPA 200.7
- lithium — Sample date: 2023-04-27
Below reporting limit. < Result value not available µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample C3D3614-05 · Method EPA 200.7
- lithium — Sample date: 2023-07-25
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 C3G3595-05 · Method EPA 200.7
- lithium — Sample date: 2023-10-26
Detected above reporting limit. = 31 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample C3J3924-05 · Method EPA 200.7
- lithium — Sample date: 2024-01-31
Detected above reporting limit. = 45 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample C4A4127-05 · Method EPA 200.7
- lithium — Sample date: 2023-04-27
Below reporting limit. < Result value not available µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample C3D3614-07 · Method EPA 200.7
- lithium — Sample date: 2023-07-25
Detected above reporting limit. = 12 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample C3G3595-07 · Method EPA 200.7
- lithium — Sample date: 2023-10-26
Detected above reporting limit. = 31 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample C3J3924-07 · Method EPA 200.7
- lithium — Sample date: 2024-01-31
Detected above reporting limit. = 44 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample C4A4127-07RE2 · 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
- CA3010079
- 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 →