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Under the provisions of SMARA, anyone wishing to perform surface mining operations (unless exempt under SMARA) is required to submit a permit application and a reclamation plan to the lead agency. In the case of the proposed Claude C. Wood project, the lead agency is San Joaquin County. Copies of all permit applications and approved reclamation plans must be sent to the California Division of Mines and Geology. San Joaquin County Aggregate Resources The Stockton-Lodi region is supplied by two production districts: the Tracy District, just south of the City of Tracy; and the Mokelumne River District, along the Mokelumne River. More than 80 percent of the aggregate consumed in the P-C region is supplied from the Tracy District, with the remaining demand supplied from the Mokelumne River District. About 90 percent of the aggregate from the Mokelumne River District and about 85 percent from the Tracy District is supplied to the Stockton- Lodi P-C region. The remaining production is consumed by neighboring counties (CDMG, 1988). An important market consideration for aggregate resource development is the resource's relatively low value compared to its high bulk weight. For this reason, transportation of aggregate over great distances is economically unattractive. Transportation cost is a major component of aggregate cost to the consumer (CDMG, 1988) and import of aggregate from outside a P-C region is expensive. CDMG (1988) has estimated that, at anticipated consumption rates, known high grade (Portland cement concrete grade) aggregate reserves in the Stockton-Lodi P-C region may be exhausted by about the year 2004. To extend the availability of reserves in the market area, it would be necessary to either define additional reserves or import aggregate from outside the area (i.e., other production areas), likely at much greater cost. San Joaquin County Objectives and Policies The San Joaquin County General Plan (Land Use/Circulation Element, 1976; as amended 1988) identifies the project area as being within a Natural Resource Area. The following Natural Resource objectives and principals pertaining to extractive resources are presented in the General Plan: 7