Major causes of nonsupport are fecal coliform, organic enrichment, sulfates, and chlorides. Impairment of streams is attributed to agriculture, natural sources, hydromodification, and ground water withdrawal. Agriculture and natural sources are the major sources of impairment for lakes.
Most wetlands are on private lands.
Agriculture, hydromodifications in watersheds, and natural processes are the sources of impairment. Ground Water Quality - Not reported in a quantifiable format or unknown. Ground Water Quality monitoring network is composed of 242 different types of wells and conducts the primary ambient ground water monitoring in the state. Nitrate contamination is a major concern. The major sources of these contaminants included active industrial facilities, spills, leaking storage tanks, mineral extraction, and agricultural activities.