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Description: The Williamson Act, also known as the California Land Conservation Act of 1965, enables local governments to enter into contracts with private landowners for the purpose of restricting specific parcels of land to agricultural or related open space use. In return, landowners receive property tax assessments which are much lower than normal because they are based upon farming and open space uses as opposed to full market value. Designations:Prime Agricultural LandLand which is enrolled under California Land Conservation Act contract and meets any of the following criteria (as set forth under California Government Code Section 51201): Land which qualifies for rating as class I or class II in the Natural Resources Conservation Service land use capability classifications; Land which qualifies for rating 80 to 100 in the Storie Index Rating; Land which supports livestock used for the production of food and fiber and which has an annual carrying capacity equivalent to at least one animal unit per acre as defined by the United States Department of Agriculture; Land planted with fruit or nut-bearing trees, vines, bushes or crops which have a nonbearing period of less than five years and which will normally return during the commercial bearing period on an annual basis from the production of unprocessed agricultural plant production not less than two hundred dollars per acre; Land which has returned from the production of unprocessed agricultural plant production and has an annual gross value of not less than two hundred dollars per acre for three of the previous five years.Nonprime Agricultural LandLand which is enrolled under California Land Conservation Act contract and does not meet any of the criteria for classification as Prime Agricultural Land. Non-Prime Land is defined as Open Space Land of Statewide Significance under the California Open Space Subvention Act (see California Government Code Section 16143), and may be identified as such in other documents. Most Non-Prime Land is in agricultural uses such as grazing or non-irrigated crops. However, Non-Prime Land may also include other open space uses which are compatible with agriculture and consistent with local general plans.NonrenewalEnrolled lands for which non-renewal has been filed pursuant to Government Code Section 51245. Upon the filing of non-renewal, the existing contract remains in effect for the balance of the period remaining on the contract. During the non-renewal process, the annual tax assessment gradually increases. At the end of the 9 year non-renewal period, the contract expires and the land is no longer enforceably restricted.Farmland Security ZoneEnrolled parcels containing either Prime or Non-Prime agricultural land restricted by a 20 year contract pursuant to Government Code Section 51296.Mixed Enrollment Agriculture LandEnrolled lands containing a combination of Prime, Non-Prime, Open Space Easement, or other contracted or enrolled lands not yet delineated by the county.This data is updated annually each December.California Department of Conservation: https://maps.conservation.ca.gov/dlrp/WilliamsonAct/Data received 02/15/2024, Travis Kroger, Associate Planner, Planning Services Division, Department of Resource ManagementData Updated 04/30/2024, BConrad, GIS Analyst, Solano County Dept. of Information Technology.Uploaded to Solano County GIS Portal, DMachado 05/04/2024
Service Item Id: 44eeaa3c51234a64af0653039c5c2a25
Copyright Text: https://maps.conservation.ca.gov/dlrp/WilliamsonAct/
For more information please see https://www.conservation.ca.gov/dlrp/wa
Farl Grundy
Associate Environmental Planner
Division of Land Resource Protection
Williamson Act / CEQA
California Department of Conservation
715 P Street, MS 1904
Sacramento, CA, 95814
E: Farl.Grundy@conservation.ca.gov
C: (916) 617-0522
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