Join MMWD and Friends, meeting at Phoenix Lake dam. The gate at Natalie Coffin Greene Park will be open only from 8:45 to 9:00 to allow volunteers to drive up and park next to the dam. If questionable weather, call (415) 945-1128 after 8am on the morning of the event. Questions: Contact volunteerprogram@marinwater.org or (415) 945-1128.