Common use of H-I Model Code Revisions Clause in Contracts

H-I Model Code Revisions. In order to reflect increased groundwater irrigation efficiencies, the input file UPDATE.DAT and H-I Model code were modified. These modifications were necessary because the H‐I Model incorporated in the Decree applied a single efficiency value (known as the “maximum farm efficiency” factor) to each canal service area (user) which was used in both the Historical and Compact runs. In the Historical run, the weighted efficiencies will be calculated and may vary for each calendar year (January-December) by user based on the types of irrigation system used. The weighted efficiencies and adjusted tailwater factors described in this Agreement will not be applied in the Compact run; the maximum farm efficiency factors listed in LAND.DAT will continue to be used. The H-I Model modifications are further described below.

H-I Model Code Revisions. In order to reflect increased groundwater irrigation efficiencies, the input file UPDATE.DAT and H-I Model code were modified. These modifications were necessary because the H‐I H I Model incorporated in the Decree applied a single efficiency value (known as the “maximum farm efficiency” factor) to each canal service area (user) which was used in both the Historical and Compact runs. In the Historical run, the weighted efficiencies will be calculated and may vary for each calendar year (January-December) by user based on the types of irrigation system used. The weighted efficiencies and adjusted tailwater factors described in this Agreement will not be applied in the Compact run; the maximum farm efficiency factors listed in LAND.DAT will continue to be used. The H-I Model modifications are further described below.