Very low
Hardly any trace of salt. Too fresh for most people.
Lynnhaven
Lynnhaven River, Virginia
Rappahannock River
Rappahannock River, Virginia
Chesapeake
Chesapeake Bay
Skagit Bay
Skagit Bay
Hollywood
Patuxent River, Maryland
James River
James River, Virginia
Kumamoto (low salinity)
Skagit Bay
New ratings