What happens if there is no analytical method with a low enough detection limit to tell if a sample meets a given standard?
If there is no analytical method with a low enough detection limit to determine if the sample meets a given standard or screening level, then DEQ/SRS generally requires that the sample be analyzed using the lowest available detection limit. For surface and ground water samples, the analytical method must achieve the required reporting limit included in the most current version of Circular DEQ-7. For soil, sediment, and air samples, the analytical method must achieve the lowest available reporting limits. If the reporting limit is higher than the soil screening level for leaching to groundwater, DEQ may require groundwater sampling or additional soil sampling or both to confirm that the compound is not leaching. For metals and dioxins/furans in water or soil and for some compounds in indoor or outdoor air, DEQ may recommend a comparison to background concentrations.
Related Questions
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- What if Ive used an analytical method that doesnt have a low enough detection limit, but there are other methods available that have lower detection limits?
- What happens if there is no analytical method with a low enough detection limit to tell if a sample meets a given standard?
