Shellfish harvesting along the eastern and northern shorelines of Bainbridge Island has been closed due to potential pollution from a July 19 sewage overflow at the West Point Treatment Plant in Seattle, health officials announced Thursday.

The harvesting closure also extends to Port Madison/Indianola.

The ban will remain in place until Aug. 9, said officials with the Kitsap Public Health District.

The closure area includes the eastern and northern shorelines of Bainbridge Island, north of Eagle Harbor; and the Port Madison/Indianola area from the Agate Pass Bridge to Point Jefferson.

All recreational shellfish harvesting for all species of clams, oysters, and mussels are included in the harvesting ban.

Shrimp and crab are not included, officials said, but crabs should be cleaned prior to cooking, and the “crab butter” should be discarded. Shellfish harvested commercially that are available in stores and restaurants are tested for toxins prior to distribution, and are safe to eat.

Residents can check the safety status of shellfish harvesting by visiting an online map at https://fortress.wa.gov/doh/biotoxin/biotoxin.html.