Water managers in the Tulare Lake, Tule and the Kaweah subbasins are discussing the possibility of creating a regional subsidence plan that would cover the three basins. Subsidence, or land sinking, has been a major problem for all three regions, causing a 33-mile long sag in the Friant-Kern Canal and repeatedly sinking the Corcoran levee. Excessive groundwater pumping has caused so much subsidence, it can be seen from space and was nicknamed the “Corcoran bowl.” … Mid-Kings River Groundwater Sustainability Agency’s Manager Chuck Kinney informed the GSA board during a March 11 meeting that he’s met with other water managers in the region to work on a joint subsidence monitoring and action plan.