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MEMO -TASK 91, APPENDIX 8 <br />Appendix B -Well to Parcel Matching Process <br />During the water user meetings parcels were identified as irrigated with `surface water only', `ground <br />water only', or `supplemental'. Water users also sometimes identified which well irrigated a parcel. This <br />information was used to refine the well-to-parcel matching. See Section 2.4 for further information on <br />the meetings with water users. <br />Following the water user meetings, the parcels marked as surface water only were removed from further <br />analysis so that no wells would be assigned to them. The next step assigned common IDs to whole center <br />pivot units. Each part of a center pivot was assigned the same ID number. By using this ID as the parcel <br />ID in StateDGI, each part of a center pivot parcel was assigned the same well. See Figure B. 1 for an <br />example of the center pivot unit IDs. <br />Multiple iterations of StateDGI were performed to obtain the final well-to-parcel matches. The Rio <br />Grande DSS Memo 3.1 -Data Centered Ground Water Model has a complete description of the StateDGI <br />well-to-parcel matching routine. StateDGI matches irrigation wells greater than 50 gpm based on a <br />closest parcel methodology. It also prioritizes the parcels so that parcels irrigated by sprinklers and <br />parcels irrigated only with ground water will be assigned wells before other irrigated parcels. Each match <br />is ranked as a Type 1, 2, 3, 4, 5, 7, 8, or 9 match. Figure B. 1 shows the types of matches that occurred <br />through StateDGI in the SPDSS. Table B. 1 lists the definitions of all the matches that are possible <br />through StateDGI. <br />w 1®0010115 <br />10oa1o114 looaaalla 1 =- <br />10aO1 <br />f Type 1 Match p Irrigation Wells <br />~ Type 2 Match 0 Ground Water only Parcels <br />- - Type 4 Match ®5urface Water i?nly Parcels <br />~- Type 7 Match ®5upplemental Water Parcels <br />Type 8 Match ~ User defined Supplemental Parcels <br />-6 Type 9 Match <br />Figure B. 1. Well to Parcel Matching Diagram <br />Page 19 of 55 ~Rlyerslde FecAno[o`(!~Y Inc. <br />4'JaYer Resourer..s Errgi~ecr:np an~i L'ansuFlrnd <br />