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Comments and Concerns <br />The time series information developed for the RGDSS historic consumptive use analysis <br />is considered appropriate to use for the RGDSS planning and administration efforts. <br />Areas of potential improvement include: <br />• Irrigated Acreage Time Series. The 1998 irrigated acreage, which serves as the basis <br />for estimating historic acreage, is considered very accurate. Acreage estimated based <br />on aerial photography or satellite imagery for years prior to 1998 could provide a <br />better estimate of historic acreage than the use of County Agricultural Statistics. <br />• Well Data. As noted in the memorandum Task 3.1 -Data Centered Ground Water <br />Model, the well to irrigated acreage association task highlighted missing information <br />in the State's well permit database. Updates or improvements made to the database <br />should be incorporated into future estimates of historic consumptive use. <br />C:\Projects\rgdss\finemos_2004\appendA_cropcu_6-2004.doc A-10 of A-10 June 2004 <br />