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Colona Pit SWSP Page 10 of 13 <br /> September 10, 2025 <br /> approval. <br /> a. The historical consumptive use attributed to the changed surface water <br /> right(s) under this SWSP shall not include groundwater contributions. As a <br /> result, the historical consumptive use (HCU) credit calculated for the <br /> subject water right to be changed by this SWSP shall be reduced by any <br /> ongoing sub-irrigation from groundwater. In order to ensure the required <br /> dry-up conditions exist during the approval period of this SWSP, and to <br /> ensure no sub-irrigation from groundwater is occurring, the Applicant <br /> shall provide records of monthly monitoring of depth to groundwater for <br /> all land associated with the change of water right in this SWSP. <br /> Information regarding depth to groundwater may be provided using <br /> existing irrigation wells, existing or new monitoring wells, or piezometers <br /> located on the dried-up fields. The Applicant may utilize wells or <br /> piezometers located within '/ mile of each field provided that the <br /> Applicant can demonstrate the depth to groundwater information <br /> available off-site is representative of the depth to groundwater on the <br /> dried-up land. The Applicant shall modify its accounting to reduce the <br /> amount of the calculated HCU that may be claimed in this SWSP according <br /> to the table below. Measurements taken at the start of each month will <br /> determine the necessary reduction in credit to be applied during the <br /> following month. The Applicant may use another methodology upon <br /> review and prior approval by the State Engineer and Division Engineer. <br /> (Construction of monitoring holes/wells, or piezometers requires that <br /> permits or notices be obtained as described in Table 1 of the Water Well <br /> Construction Rules.) <br />