The Natural Resources Conservation Division was created in 2012 in the Department of Public Works as part of the County’s reorganization efforts. Our offices are located at 804 First Street in Napa along the Napa River/Oxbow Commons. For more information about Natural Resources Conservation programs and activities, visit our websites listed below. You may contact Jeff Sharp at 707-259-5936 for inquires regarding groundwater. For waste management matters, please contact Amanda Griffis at 707-259-8330 or David Briggs at 707-253-4094.