Monitoring of shellfish safety is a critical function of the Office of Shellfish and Water Protection of the Washington State Department of Health (DOH). The shellfish toxicity surveillance program was initiated
and operating factors were given scores based on the following sections: storage-zone confinement, storage-zone transmissivity, storage zone gradient and direction, recharge water quality, native groundwater quality, overall physical, geochemical, and design interactions, and interfering uses and impacts....