1987-055 - Laserfiche WebLink

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' Authorization ' The Rockridge area sewer feasibility study and report has been authorized by Indian River County work authorization #3, dated February ' 12, 1986. ' General Information The Rockridge area of Indian River County is located east of 6th Avenue and south of 17th Street. A small portion of the project area lies north of 17th Street. The project area is within 2000 feet of '. the Indian River and in close proximity to the Vero Beach wastewater treatment plant. The Rockridge area is aptly named. A soil boring program, performed ' as part of this report, has verified that the entire project area is located over a layer of hard limestone containing fractures and solution ' holes. The entire soils report, performed by Empire Engineering & Testing, Inc. and dated March 24, 1986, is contained in the appendix ' of this study and report. The soils report shows that the hard limestone layer starts from 1 to 2 feet below the ground surface and is 1 to ' 2 feet thick in the portion of the project area south of 17th Street. Soil boring (B-6) was taken in the project area north of 17th Street and shows that the hard limestone starts at 4 feet below the ground surface and is approximately 11 feet thick. The soil borings also show that ground water is present at 3 to 4 feet below the ground surface ' throughout the project area. The presence of the hard limestone layer and the high ground water table are conditions which prohibit an easy ' and inexpensive method to treat and dispose of domestic wastewater from the homes in the Rockridge area. ' The Rockridge area of Indian River County is a single family lot subdivision generally consisting of single story, masonry dwelling units on building lots 57 feet wide by 97 feet deep. The project service ' area is shown on the various exhibits included in this report and contains approximately 375 dwelling units. Each of the 375 dwelling units is served by the Indian River County utility Department water supply system. The water lines are, generally, fairly small in diameter and are installed -1-