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ROBERTS 2, TODD SF 415 541 0944 P,08 , 151 EFFECTS DETERMINED TO BE INSIGNIFICANT The City of ~uta Ann prepared aa Inilial Study to identify effects of the proposed project which are and are not potentially significant..~t the time' the initial study was prepared and circulated, it was anticipated that the project would have no impact on human health. However, during the publlo review period the city received e comment letter from the Orange County Vector Control District which indicated that a potential existed for rats and breeding mosquiloes to affect persons in the project area. This topic of environmental analysis (human health) has been removed from the no impact discussion. Those topics which were determined not to have significant effects or to have beneficial effects are stated below: The project will decrease the area covered by impervious surfaces, and thus decrease the rate and amount of runoff during storms by a small amount. No significant modifications to surface drainage patterns or ground water conditions will result from the project. The project is not anticipated to . substantially reduce the amount of water available in public water supplies.' The reduction in residential uses within the area and the resultant reduction in waler demand is expected to offset the water required for new landscaping. Planl Life No unique, rare or endangered species of plants are known tn occur in the planning area. The landscaping proposed by the project will substantially increase the amount and diversity of plant life in the project area, more than offsetting the loss or any existing vegetation as a result of the project, No unique, rare or endangered animal species are known to feed, nest, or mate in the project area. No reduction in the numbers or diversity of animal life are expected to result from implementation of the plan. The introduction of substantial amounts of new landscaping may have the beneficial effect of providing new habitat for small species of birds and animals that are adapled to urban areas. Natural Resources The consumption of resources associated with implementation of the plan would represent an insignificant proportion of the regional supply, and the energy and water needed to support the long-term maintenance of the project area would not substantially exceed current levels. Risk of Upset The comsat;iai, office and residential uses proposed by tile project do no, pose any unique or unusual hazards or risks related to explosion or the release of toxic malaria{s,