Download our ELAP Certification:
ELAP Certificate with FOT 2021-2023
Chain of Custody
Toxicity Testing Sample Handling Guidelines
| Test Results Turn Around Times (TATs) | ||
| Acute tests = 10 working days | ||
| Chronic tests = 14 working days | ||
| All samples must be held at 4° C in the dark | ||
| Sample Holding Times | ||
| Water = 36 hours | ||
| Stormwater = up to 72 hrs if allowed by the permitting agency | ||
| Sediment = 14 days |