The desanding function is part of a shellfish purification management plan put into effect in March 2012.
Local officials appear to be becoming more conscious of shellfish quality as well.
Newburyport Harbormaster Paul Hogg recently told members of the Harbor Commission that he is preparing to serve as shellfish constable of the area, as part of an effort to oversee activities in clam flats.
Several clam diggers contacted declined to comment on the health of the industry.
Diodati said, “The clam industry is healthy and there will be plenty for diners this summer.”