Northside Pet Connection | Pet spay/neuter assistance for Tuolumne and Mariposa counties… Northside Pet Connection About Us Northside Pet Connection NPC is a 501c3 charitable organization whose purpose is to seek ways and provide means for low cost spay and neuter services for cats and dogs in the communities of Lake Don Pedro Coulterville Groveland Big Oak Flat and Greeley Hill. The main way we do this is through our spayneuter voucher program. Additionally we labor in the education of a public sentiment of humanity and gentleness toward domestic and other animals. Furthermore we aim to receive acquire hold own invest reinvest collect sell convey and use in the promotion and carrying out of any of its objectives in accordance with ourbylaws and the directions of grantors testators and benefactors all kinds of property real personal and mixed.