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Settled solids consisting of clays and silts will periodically be removed from the settling ponds and stockpiled for eventual use in lining the final pit during the reclamation process . Water from the ponds will be recycled through the washing screen plant . Some materials are anticipated to consist of sand sufficiently clean as to be shipped directly from the site without any preprocessing. An alternative method of mining under investigation would utilize a floating suction dredge . Sand would be excavated beneath a water surface and conveyed by pumping directly to the washing screen plant . In addition to separating the clays and silts from the sand, the product will be dewatered . Screen underfloor will report to the settling ponds as described before, and the water recycled through the flooded mining pit . 4.4 Description of Facilities : No permanent facilities will be constructed for the quarrying operation . Structures will be limited to a temporary portable office and equipment maintenance shed . The office will be a commercially available trailer unit . The equipment maintenance shed will likely be a recycled shipping container . All sanitary sewage use will be in Self Contained Trailer Units, serviced by a Sanitary Contractor . Porta Pot units owned and serviced by a Sanitary Contractor will be strategically placed and serviced on a regular basis and affluent removed to legal areas by the Sanitary Contractor 4 . 4. 1 Plant - The washing plant is to be located southwest of the quarry near the stockpile locations . The plant will consist only of a receiving hopper , a screen feeding conveyor , an electrically powered wet vibrating screen , and a product stacking conveyor . The temporary buildings are a self-contained portable office, a maintenance container and a trailer storage, shower and bathrooms . (See Figure 4) Landmark Lathrop Group, LLC - 3 - February 3, 2000