H.R.4531: To amend the Reclamation Wastewater and Groundwater Study and Facilities Act to authorize the Secretary of the Interior to particpate in the Inland Empire regional water recycling project, to authorize the Secretary to carry out a program to assist agencies in projects to construct regional brine lines in California, and to authorize the Secretary to participate in the Lower Chino Dairy Area desalination demonstration and reclamation project.