Some records date the history of water overdraft to the 1940s, but the increase in planting row crops and berries has significantly increased water usage. In 1984, in order to help manage water resources, the Pajaro Valley Water Management Agency was formed because “Community leaders in the area recognized that local management of the basin was needed to halt seawater intrusion, which was impacting the groundwater supply for large areas of coastal farmland as well as domestic water supply wells.”
The agency commissioned the United Sates Geological Survey to study the recharge and seawater intrusion in the Valley. The USGS report identifies and describes such things as water levels, soil types, recharge areas, as well as the age, source, and movement of ground water in the region. The report noted that “Ground-water from deep monitoring wells have uncorrected ages from 1,000 to 24,900 years old and were recharged thousands of years ago and represent the nonrenewable resource in the coastal region.”
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