Forensic evidence record · ev-pa7280043-f-bear-valley-joint-lithium
Lithium
A single published measurement record with its qualifier, sampling context, source identifier, method note, and stated limitations kept together.
Published evidence record
19 µg/LReported measurementSource observations (8)
- lithium — Sample date: 2024-06-18
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 35886849001SE1 · Method EPA 200.7
- lithium — Sample date: 2024-09-17
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 35906632001SE2 · Method EPA 200.7
- lithium — Sample date: 2024-12-17
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 35925799001SE3 · Method EPA 200.7
- lithium — Sample date: 2025-03-10
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 35942112001SE4 · Method EPA 200.7
- lithium — Sample date: 2024-06-18
Detected above reporting limit. = 14.6 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample 35886849003SE1 · Method EPA 200.7
- lithium — Sample date: 2024-09-17
Detected above reporting limit. = 19 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample 35906632003SE2 · Method EPA 200.7
- lithium — Sample date: 2024-12-17
Detected above reporting limit. = 18.4 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample 35925799003SE3 · Method EPA 200.7
- lithium — Sample date: 2025-03-10
Detected above reporting limit. = 14.9 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample 35942112003SE4 · 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
- PA7280043
- 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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