ABOUT THE MASS OYSTER PROJECT FOR CLEAN WATER MOP is a 501c-3 non-profit dedicated to restoring water-cleansing oysters to Boston Harbor after their being absent for decades. Each oyster can filter 30 gallons of water per day. An oyster reef can shelter up to 100 other species so they dramatically add to biodiversity. Oysters also sequester nitrogen in wastewater and each person creates 12 pounds per year. Oyster shells contain calcium carbonate a known buffer that can help offset ocean acidification. MOP has shown that oysters can survive and grow in Boston Harbor. The group is now seeking to optimize placements to maximize survival and eventually show reproduction. Come join us in making your Harbor healthier!