From introduction: The purpose of this report is (1) to describe the geology, hydrology, and quality of water of Manatee County and (2) to evaluate the availability of surface and ground water for development. The report provides Manatee County, the Southwest Florida Water Management District, and the Florida Department of Natural Resources with a data base and an evaluation of the water resources of the area so that water-quality and water-resource problems and water-management and regulatory needs can be adequately defined and documented.

From purpose and scope: This report describes the effect of land application of effluent from wastewater treatment plants on ground-water quality in the Livermore-Amador Valley. The report focuses on five wastewater application areas contiguous to or near following wastewater treatment plants: Livermore, Pleasanton, Dublin-San Ramon Services District (was Valley Community Services District), Castlewood Corporation, and Veterans Administration Hospital.

Abstract: The Pinellas County landfill site is on a flat, coastal area characterized by a nearsurface water table. Part of the site is subject to tidal flooding; altitudes within the study area range from 8 to 12 feet above sea level. Three geohydrologic units underlie the landfill site. In descending order, these are: a surficial aquifer about 19 feet thick composed of sand and shell, a confining bed about 35 feet thick composed of marl and clay, and the Floridan aquifer composed of limestone. Landfill operations have not altered surface-water quality. Although leachate movement downward into the Floridan _aquifer is not indicated, vertical movement through the confining bed is about 0.005 foot per year. The rate of lateral movement of ground-water away from the site is about 1.2 feet per year; . however, the rate of movement along the boundary from the oldest section of the landfill through the surficial aquifer is about 20 feet per year. Peaks in concentration of selected chemical parameters and flow-rate analysis of water from trenches indicate the possibility of intermittent release of leachate from the landfill.