Forensic evidence record · ev-ca4210007-f-montecito-dist-lithium
Lithium
A single published measurement record with its qualifier, sampling context, source identifier, method note, and stated limitations kept together.
Published evidence record
56 µg/LReported measurementSource observations (18)
- lithium — Sample date: 2024-02-07
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 C4B1353-01RE1 · Method EPA 200.7
- lithium — Sample date: 2024-05-08
Detected above reporting limit. = 37 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample C4E1479-01 · Method EPA 200.7
- lithium — Sample date: 2024-08-05
Detected above reporting limit. = 35 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample C4H0854-01 · Method EPA 200.7
- lithium — Sample date: 2024-11-06
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 C4K1057-01 · Method EPA 200.7
- lithium — Sample date: 2024-02-07
Detected above reporting limit. = 29 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample C4B1353-03RE1 · Method EPA 200.7
- lithium — Sample date: 2024-05-08
Detected above reporting limit. = 38 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample C4E1479-03 · Method EPA 200.7
- lithium — Sample date: 2024-08-05
Detected above reporting limit. = 33 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample C4H0854-03 · Method EPA 200.7
- lithium — Sample date: 2024-11-06
Detected above reporting limit. = 29 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample C4K1057-03 · Method EPA 200.7
- lithium — Sample date: 2024-02-07
Detected above reporting limit. = 20 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample C4B1353-05RE1 · Method EPA 200.7
- lithium — Sample date: 2024-08-05
Detected above reporting limit. = 29 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample C4H0854-05 · Method EPA 200.7
- lithium — Sample date: 2024-02-07
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 C4B1353-07RE1 · Method EPA 200.7
- lithium — Sample date: 2024-08-05
Detected above reporting limit. = 29 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample C4H0854-07 · Method EPA 200.7
- lithium — Sample date: 2024-02-07
Detected above reporting limit. = 29 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample C4B1353-09RE1 · Method EPA 200.7
- lithium — Sample date: 2024-08-05
Detected above reporting limit. = 27 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample C4H0854-09 · Method EPA 200.7
- lithium — Sample date: 2024-02-07
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 C4B1353-11RE1 · Method EPA 200.7
- lithium — Sample date: 2024-08-05
Detected above reporting limit. = 40 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample C4H0854-11 · Method EPA 200.7
- lithium — Sample date: 2024-11-06
Detected above reporting limit. = 54 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample C4K1060-01RE1 · Method EPA 200.7
- lithium — Sample date: 2025-03-04
Detected above reporting limit. = 56 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample C5C0892-01RE1 · 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
- CA4210007
- 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.
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