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SESK: Stuff Everyone Should Know · sesk.info/fish-razor-clam-testing

Before a Washington razor clam beach opens, how many toxin test samples must pass?

Two, 7 to 10 days apart.

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  1. Two samples, seven to ten days apart ✔
  2. One sample on opening day
  3. Five samples in one hour

Why: The Department of Health requires two test samples 7 to 10 days apart with domoic acid below the guideline level. Digs can be postponed when toxin levels rise.

Huh, didn't know that: The 2020 to 2021 razor clam season closed early because of domoic acid.

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What did the mollusk do with the concert tickets he could not use? He scalloped them.
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References

Answer: Two samples, seven to ten days apart. The Department of Health requires two test samples 7 to 10 days apart with domoic acid below the guideline level. Digs can be postponed when toxin levels rise.

  1. WDFW Razor clam rules wdfw.wa.gov/fishing/shellfishing-regulations/razor-clams
    the DOH requires two test samples seven to 10 days apart and domoic acid levels under the guideline level.
    Checked 2026-10-10.
  2. Washington DOH Recreational Shellfish doh.wa.gov/community-and-environment/shellfish/recreational-shellfish
    Amnesic Shellfish Poisoning (ASP) from Domoic Acid
    Checked 2026-10-10.

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