Land treatment of municipal wastewater is a viable alternative to in-plant treatment and eliminates the environmental impact of direct discharge to surface waters. The design must be site specific to incorporate climatic, soil, geologic, hydrologic, and vegetation factors. The major processes in evaluating a land treatment site can be divided into two major phases: site evaluation and hydrologic budget evaluation. A site investigation is first completed to aid in the selection of a site and to assess its feasibility for land treatment. Seventeen site selection factors are identified and divided into two groups based on their impact to the site selection process. Once the general feasibility of the site has been determined, the hydrologic budget evaluation is used to estimate the wastewater hydraulic loading.

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