Forensic evidence record · ev-la1019029-f-lake-charles-lithium
Lithium
A single published measurement record with its qualifier, sampling context, source identifier, method note, and stated limitations kept together.
Published evidence record
29.1 µg/LReported measurementSource observations (12)
- lithium — Sample date: 2024-10-03
Detected above reporting limit. = 18.6 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample 35910353001SE1 · Method EPA 200.7
- lithium — Sample date: 2025-04-03
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 35947083001SE2 · Method EPA 200.7
- lithium — Sample date: 2024-10-03
Detected above reporting limit. = 18.5 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample 35910353003SE1 · Method EPA 200.7
- lithium — Sample date: 2025-04-03
Detected above reporting limit. = 21.1 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample 35947083003SE2 · Method EPA 200.7
- lithium — Sample date: 2024-10-03
Detected above reporting limit. = 21.5 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample 35910353005SE1 · Method EPA 200.7
- lithium — Sample date: 2025-04-03
Detected above reporting limit. = 19.1 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample 35947083005SE2 · Method EPA 200.7
- lithium — Sample date: 2024-11-20
Detected above reporting limit. = 18.6 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample 35920578001SE1 · Method EPA 200.7
- lithium — Sample date: 2025-04-03
Detected above reporting limit. = 20.4 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample 35947083007SE2 · Method EPA 200.7
- lithium — Sample date: 2024-10-03
Detected above reporting limit. = 22.3 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample 35910353007SE1 · Method EPA 200.7
- lithium — Sample date: 2025-04-03
Detected above reporting limit. = 29.1 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample 35947083009SE2 · Method EPA 200.7
- lithium — Sample date: 2024-10-03
Detected above reporting limit. = 23.9 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample 35910353009SE1 · Method EPA 200.7
- lithium — Sample date: 2025-04-03
Detected above reporting limit. = 22.2 µg/L
Reporting limit: 9 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample 35947083011SE2 · 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
- LA1019029
- 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 →