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Jacob Bauer, Martin and Wood <br />July 2, 2009 <br />Page 3 <br />3. The maximum amount of ground water exposed shall not exceed 9.76 acres, in <br />accordance with Permit No. 62251-F. Documentation of pond size may be required by <br />the Division Engineer in the form of an aerial photo evaluation or survey by a <br />Professional Land Surveyor during the plan year or years covered by subsequent <br />renewals of this plan. <br />4. The maximum annual evaporative loss associated with this mining operation shall not <br />exceed 25.23 acre-feet, as listed on the attached Table 1. <br />5. The maximum operational loss associated with this mining operation shall not exceed <br />1.30 acre-feet, as listed in on the attached Table 1. The total product mined at the St. <br />Barbara Sand and Gravel Mine shall not exceed 25,000 tons per year resulting in an <br />annual amount of 0.74 acre-feet of water lost in the mined aggregate. The annual <br />amount of water used for dust suppression shall not exceed 0.56 acre-feet. <br />6. Total consumption at the St. Barbara Sand and Gravel Mine shall not exceed the <br />aforementioned amounts, totaling 26.53 acre-feet per year, unless an amendment is <br />made to this plan. <br />7. Dewatering at this site will produce delayed depletions to the stream system. As long as <br />the pit is continuously dewatered, the water returned to the stream system should be <br />adequate to offset the depletions. However, once dewatering at the site ceases, the <br />delayed depletions must be addressed. At least three years prior to completion of <br />mining, a plan must be submitted that specifies how the post pumping dewatering <br />depletions (including refilling of the pit with ground water) will be replaced in time, place <br />and amount. The Applicant is hereby notified that if dewatering of the mined cell <br />occurs only during the summer months with the pit allowed to fill during the winter <br />months, then depletions to the stream as a result of refilling of the pit must be <br />addressed in any subsequent SWSP renewal for this pit. <br />8. Approval of this plan is for the purposes as stated herein. Any additional uses of this <br />water must first be approved by this office. Any future historic consumptive use credits <br />sought for this site (e.g., agricultural water transfer) must consider all previous credits <br />applied. <br />9. All pumping for dust suppression shall be measured in accordance with the Amended <br />Measurement Rules. A totalizing flow meter (TFM) or equivalent measuring device must <br />be installed and approved by the Division Engineer. <br />10. The replacement water that is the subject of this plan cannot be sold or leased to any <br />other entity. As a condition of subsequent renewals of this water supply plan, the <br />replacement water must be appurtenant to this site until a plan for augmentation is <br />obtained. A copy of this approval letter should be recorded with the County Clerk and <br />Recorder. All replacement water must be concurrent with depletions in quantity, timing, <br />and locations. <br />11. Accounting, of water in this plan, including pumping, stream depletions, and replacement