1. Water District 119 32730 NE Big Rock Rd, Duvall, WA 98019 Coordinate: 47.69518,-121.9008 Phone: (425) 788-2885
2. Lake Margaret Water System 19436 327th Ave NE, Duvall, WA 98019 Coordinate: 47.76543,-121.90003 Phone: (425) 844-2193