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Planning Commission Regular Meeting <br />Minute No. 95-22 <br />November 9, 1995 <br />Page 4 of 11 <br />Gary Osterhout, MacKay & Somps: The total volume of the two ponds is approximately 6 acre <br />feet, which is intended to treat low flows from the site that would occur during the low -intensity <br />storms that might occur during the winter months. The storm water quality pond is expected to <br />maintain a level of water of about two feet. <br />Dlugosh: Regarding standing water, will there be some kind of mosquito abatement? Concerned <br />that the two storm water ponds would present potential breeding grounds, which are directly <br />adjacent to residential areas. <br />John Hughes, Citation Homes: There is certain vegetation such as Bull Rushes and other <br />vegetation that has to be placed so that the pond is not too warm. The facility will be owned by <br />the Homeowners Association. The Homeowners Association has the option to contract with an <br />agency to control this issue. It is not dependant on Alameda County Flood Control to treat the <br />pond. <br />Gary Osterhout, MacKay & Somps: Mentioned a small fish that will be placed in the pond that <br />will aid in the abatement of the mosquitos. <br />Reed: Will there be provisions made to make sure that the ponds are not hazardous to small <br />children living in the project to avoid possible drowning? <br />John Hughes, Citation Homes: Yes. The area will be fenced discretely. The fence will be just <br />as high as what would be required by Flood Control. <br />Steve Foreman, Wildlife Biologist with Resource Management International: Discussed <br />mosquito abatement and how the permanent pond is to maintain a population of mosquito fish, <br />which eat the mosquito larvae. Explained that his role has been to address the wetland and <br />endangered species issues on the remaining Open Space areas. Mentioned installation of the <br />channel network that is being created to facilitate water movement into the marsh, installation. of <br />the water control structures --to control the levels of the marsh and finish the remainder of the <br />upland and buffer habitats through the grading. <br />Berger: Do you have diagrams and maps for us to see? Asked if certain areas had been tested. <br />How deep is the capped area? Is there no leakage? <br />Steve Foreman, Wildlife Biologist with Resource Management International: Showed <br />blueprint drawings and talked about water flow and the upland areas. He also showed where <br />unsuitable contaminated soils were moved from one place to another. <br />Ravenstad: How many areas are capped? <br />Terry McManus, HLA: In response to Commissioners Berger and Ravenstad: Phase 3 has had <br />extensive soil testing. The Bluebird area and the proposed recreation area are the only capped <br />areas. Originally, soils were placed about four to five feet high in the capped areas, then <br />eventually another two to four feet of soil was placed on top of that. There is no chance that <br />leakage will occur because of the capping and the contaminants are above the water level table. <br />