These Standard Guidelines describe the steps necessary to plan, design, construct, maintain, operate, and close a project for artificial recharge of ground water. They also describe the economic, environmental, and legal considerations, including water rights, laws, and regulations, as well as field investigation and testing procedures that may apply to all the preceding steps. The recharge may be accomplished either by applying water to the ground surface for infiltration or by placing it directly into aquifers through wells. These guidelines cover situations that may occur in many different types of projects and can be applied to basic or small projects by selecting the portions of these guidelines that are appropriate to the proposed project.