Reso 1996-061 to 065 - Laserfiche WebLink

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d. DRAINAGE EFFECT: The existing sites include a combination of paved, partially paved and unpaved surfaces. The grading and paving of this area will slightly increase the amount of surface water runoff. FINDINGS: The site is fairly flat and the existing storm water drainage system on Marina Boulevard can accommodate this increase of water runoff due to construction and paving on the site. In addition, any conditions of approval for the sites would include the appropriate drainage design and mechanisms to connect with existing storm drainage infrastructure. The City will require a grading permit and inspections for the sites. Compliance with the approved drainage design, the City's oversight of the grading permit review, and inspections during grading of the sites will ensure that no drainage problem will ensue and any potential impact will be reduced to below a level of significance. STATEMENT OF FACTS: The proposed grading and paving for the sites requires a grading permit. Review and approval of the grading plan and inspections during the grading process will ensure that the required grading plan, which includes the appropriate drainage provisions, will be carried out so that site drainage will be accommodated within the existing storm water drainage system on Marina Boulevard. City review and inspection of the grading permits and grading process will ensure that there will be no significant effect on the environment related to the grading and construction process and the resulting increase of water runoff. e. NOISE EFFECT: The proposal could result in increases of existing noise levels. FINDINGS: An evaluation of the noise impacts was performed by Environmental Science Associates, Inc. (ESA), a Bay Area firm providing environmental consulting services. ESA performed multiple 24-hour noise measurements at the rear fenceline of the proposed used car lot between the two nearest residences. This evaluation, which is included as an attachment to the Mitigated Negative Declaration, concluded that the increase in ambient noise levels generated by the proposed new car showroom and used car lot would not be significant. The evaluation also found that the increased traffic noise generated by these two uses would not be significant. STATEMENT OF FACTS: The noise evaluation noted that, in determining significance criteria, an increase in the noise environment of five dBA or greater is considered to be the minimum required increase for a change in community reaction according to the U.S. Department of Transportation, 1990. This five dBA standard was used to evaluate increased noise from vehicle traffic. For evaluation of increased noise impacts from business operations (as opposed to vehicle traffic), an increase of three dBA or greater was used to determine a