This report offers a thematic approach to the identification and evaluation of the major types of water conveyance systems found in California. In the past, canals were not always recognized as a type of cultural resource that might need study. Now there is increased awareness that canals and other water conveyance facilities can be historically significant. However, important water conveyance systems are frequently extensive and sometimes quite complex, while transportation project effects on them are typically limited to a small segment of the entire property. Under these circumstances, developing a basic historical context would allow researchers to work from a baseline of existing knowledge, thereby helping to achieve a suitable balance between the need for sufficient information and expenditure of a reasonable level of effort.
Because of California’s unique combination of natural resources, climate, topography, history, and development patterns, the state has an assortment of water conveyance systems unlike few if any other states. As a result, little guidance has been developed at a national or regional level, leaving California to develop its own statewide historic context and methodology. This research provides the historic context and survey methodology for the appropriate consideration of water conveyance systems, especially the frequently encountered canals and ditches, in order to take into account the effect of transportation projects on historic water conveyance facilities.
The Salinas River is listed by the Environmental Protection Agency (EPA) under the Clean Water Act’s ‘303d list’ as being impaired due to ‘sedimentation/siltation.' A plan for management of the total maximum daily load of sediment is thus mandated. This plan was to include an assessment of sediment sources in the Salinas Watershed. The study provided the technical basis for this source analysis, to be used by the Central Coast Regional Water Quality Control Board (CCRWQB) in the development of the Salinas Sediment TMDL.
In 2014, the California legislature for the first time took some steps to create a framework for regulating groundwater pumping in over-drafted basins by adopting the Sustainable Groundwater Management Act (SGMA), representing California's first statewide groundwater management planning program. SGMA called for local agencies to develop groundwater sustainability plans within the next five to seven years and then achieve sustainable levels of groundwater extraction by approximately 2040 to 2045. California's prior efforts to regulate groundwater extraction is discussed, as well as groundwater depletion.
1997, April 14 – Salinas Valley Water Coalition request to Monterey County Board of Supervisors to deny Tanimura & Antle’s claim for alternative relief filed on March 24, 1997.
1997 correspondence, claim for alternative relief and supporting declarations and documents, all relating to issues pertaining to the operation of the Nacimiento and San Antonio reservoirs, the conveyance system and the delivery of water to parcels located in the Salinas River Groundwater Basin at the north end of Monterey County, California
2014, February 26 – Proposal to Abolish or Limit Water Data Confidentiality to 1-5 Years: Improving Water Resource Management and Increasing Net Water Benefits in the State of California
A February 26, 2014, submission by Dr. Peter Reinelt to the California State Water Resources Control Board his Proposal to Abolish or Limit Water Data Confidentiality. This proposal provided a conceptual economic framework for a comprehensive review of the economics of water data confidentiality with the goal, in furtherance of both public and private interest, of improving water resource management and increasing net water benefits in the State of California.
2017, August - Hornbeck Project's Historical Documents Applied to 21st Century Water Law / Sustainable Water Management in the Salinas Valley [Draft]
The memorandum examines some of the documents and references found in the CSUMB "Hornbeck Collection" and discusses the significance of the information as it relates to the colonization lands of the Western Hemisphere by the Spanish and the English, and the impact of the different approaches to colonization on the development of California and the historic legal basis for land ownership and water entitlements in California. It suggests how the historic land use and water entitlements of the State can be harmonized with the requirements of the California Sustainable Groundwater Management Act.
2017, January - Sharing Groundwater - A Robust Framework and Implementation Roadmap for Sustainable Groundwater Management in California, Working Paper NI WP 17-02, Mike Young and Bryce McAteer
The working paper offers a framework and roadmap for development of a robust groundwater-sharing system consistent with California’s Sustainable Groundwater Management Act (SGMA). The proposed system would draw on global experience. Opportunities would be maximized by a suite of robust local governance, allocation, and administrative arrangements. The proposed system would incentivize innovation, stimulate investment, and facilitate low-cost adjustment to changes in groundwater demand.
2017 - Land Use Trends Salinas River Watershed and Groundwater Basin 1771-2015 [DRAFT] by Dr. Peter Reinelt
Data collated from multiple sources from 1771 through 2015 is used to estimate agricultural land use in the Salinas River Watershed and Groundwater Basin. Institutional responsibility for collecting and maintaining data changed with evolving sovereignty over the region and later with state and county organizational changes. As institutional focus evolved, the type and form of data collected also changed. Therefore, the compiled data often used different units of measurements and have various levels of completeness. Thus, procedures are developed here to collate the data into a consistent form by transforming all cropping data sets to a per acre basis and to resolve any conflicts between data sets overlapping in time.
2017 – The Development of the Land Tenure and Water Systems in California and Specifically in the Salinas Valley Groundwater Basin [Draft]
Beginning with the Aboriginal era through the Spanish, Mexican and United States eras, maps and governmental documents reflect the state of knowledge concerning California (and the Salinas Valley) along with the driving needs and policies that determined how water was used and managed. By examining the maps, it is possible to determine the state of knowledge in Europe (and later in the United States) as it related to the physical and geographical attributes of California prior to colonization and subsequently throughout the Spanish and Mexican periods. Governmental documents provide a window to how land was used and granted during the Spanish and Mexican eras and the patenting process during the United States period. Documents and land use data further reveal the increased use of land and ensuing development and use of water systems in the Salinas Valley Groundwater Basin.
Research in this section is relevant to and/or based upon the information found in the Hornbeck Collection. Anyone who would like to comment on the research or offer independent research may send an email to: firstname.lastname@example.org.
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