Razor clam diggers looking forward to a dig beginning Friday will have to wait for results from another round of marine toxin testing.
Testing indicates toxin levels at Twin Harbors currently meet state health standards.
However, the Washington Department of Health has asked for an additional test closer to the opening to be sure clams at Twin Harbors are safe to eat after a recent spike in toxin levels.
WDFW will announce the results of the testing on Tuesday.
Long Beach will remain closed to clam digging.
Test results there show domoic acid levels still exceed the amount deemed safe under state public health standards.
Domoic acid, a natural toxin produced by certain types of marine algae, can be harmful or even fatal if consumed in sufficient quantities.