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MEMO -TASK 91 <br />not used. Additional information is presented in SPDSS Memo 92 under Task 92-Review the Division 1 <br />Well Location Activities. Other well data were reviewed including GASP, Central Colorado Water <br />Conservancy District, ditch companies, and some selected augmentation plans. It was determined that <br />none of the data was complete, documented, or congruent with well decree data in HydroBase. <br />Consequently, none of the data was used in the SPDSS well-to-parcel matching. <br />2.3.2 Match Irrigation Wells to Parcels <br />The decreed wells were matched to irrigated parcels in non-designated basins and the Upper Crow Creek <br />designated basin. Permitted wells were matched to parcels in remaining designated basins. This was <br />done in stages. First, maps of wells and parcels were taken to meetings with water users to obtain <br />information on ground water use. Then the wells were matched to the parcels with multiple iterations of <br />the well-to-parcel matching routine in StateDGI. Figure 5 shows a flow chart of the well to parcel <br />matching process. A full description of the methods used for well-to-parcel matching is presented in <br />Appendix B. <br />Water User Meetings <br />Obtain information on ground water use <br />Attribute Irrigated Parcels <br />Attribute parcels with information <br />learned from water user meetings <br />StateDGI Well to Parcel Matching <br />Run multiple iterations of StateDGI to <br />match wells to parcels in stages <br />Edit `WeIlParcel' Table <br />Edit the well parcel match table with <br />information gained from water users. <br />Manually check the matches. <br />^ Irrigated Parcel <br />Maps <br />^ Irrigated Parcels <br />^ Irrigation Wells <br />StateDGI Iterations <br />1. Used all parcels and <br />decreed wells except those <br />identified as surface water <br />only or in a designated <br />ground water basin <br />2. Used only supplemental <br />well parcels that had not <br />already been matched to a <br />decreed well <br />3. Used all parcels in <br />designated ground water <br />basins and permitted wells <br />Figure 5. Well-to-Parcel Matching Process <br />Overall, 12,365 different matches were made. 10,961 matches with decreed wells greater than 50 GPM <br />and 1,404 matches with well permits in designated basins. Out of 6,643-decreed irrigation wells greater <br />than 50 GPM in Division 1, 5,424 were matched to irrigated parcels. Table 2 lists the number of matches <br />for each class. <br />Table 2. Number of Well Parcel Matches by Class <br />Class 1 2 4 5 7 8 9 <br />Count 1942 1549 704 926 2182 1034 4028 <br />Page 6 of 55 ~R~versfde FecAno[o`(!~Y fnc. <br />4'JaYer Resources Errgi~ecr:np an~i L~ar+suFlrnd <br />