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HomeMy WebLinkAboutBALBOA COVESApril 1, 1975 TO: ENVIRONMENTAL AFFAIRS COMMITTEE FROM: Public Works Department SUBJECT: REPAIRS TO BALBOA COVES NOXIOUS ODOR REDUCTION SYSTEM Attached for the Committee's review and comment are drafts of the Notice of Determination, the E.I.R. Negative Declaration, and the Environmental Fact Sheet for the subject improvements. The Public Works Department will supply the committee with any additional information which may be required to make findings and recommendations in this matter. The tentative project schedule calls for construction to start in April 1975. oseph �ppevlin ublic Works Director AIM:hh Attachments • C. • I. Location of Project Balboa Coves is a -private community consisting 'of 75 lots located in the City of Newport Beach, on the south side of the Pacific Coast Highway and west of Newport' Boulevard. Entrance to Balboa Coves is by means of a single private street. The noxious odor reduction system that is to be repaired is located oo private property east. of the entrance street to the tract. Part of the system is two individual lots; the remainder is in private streets. The system surrounds a former gasoline service station that is presently used as an automobile repair shop. The existing noxious odor reduction system consists of an underground grid of perforated pipes which collect an unpleasant smelling mixture of methane and•, hydrogen sulfide gases as it seeps from the ground. The gas is then burned in two existing elevated burners at the site. Description of the Project', The proposed project consists of constructing additional collector pipes underneath the sidewalk and driveway approaches in front of the automobile repair shop. The purpose is to replace parts of the original collection system that has become damaged;_. and to collect an additional increment of the noxious gas that had not been collected by the existing system. The project itself consists of constructing approximately 575 linear feet•of 4" diameter perforated polyvinyl chloride pipe just beneath the sidewalk. The details are shown on City of Newport Beach Drawing M-5167-S. III. Purpose of the Project' The purpose of the project is to:. - A. Eliminate a fire hazard. B. Eliminate a possible hazard to health.' C. Eliminate a public nuisance. IV. Discussion of Environmental Impact A. Land Resources Facilities constructed by the project will be built underneath land already used for street and sidewalk purposes. No •addi- tional land will be.required. • CITY OF NEWPORT BEACH • PUBLIC WORKS DEPARTMENT ENVIRONMENTAL IMPACT STATEMENT NEGATIVE DECLARATION REPAIRS TO BALBOA COVES NOXIOUS ODOR REDUCTION SYSTEM - January 1975 C Environmental Impact•atement - Negative Declaration• Repairs to Balboa Coves Noxious Odor Reduction System Page 2. B. Human Resources There will be no effects on human resources caused by the project since the work is well within the street right-of-way, and no relocation of residences will be made. C. Air Resources 1. This project will not increase the total amount of chemicals reaching. the atmosphere. The untreated mixture of gases is mainly methane • and hydrogen sulfide. Burning the noxious gases in the presence of oxyged results in the gases being converted into sulfur dioxide, carbon monoxide, and water vapor which is discharged into the atmosphere where it is dissipated by the breeze. 2. This project will not increase or decrease the total volume of vehicle emissions in this air quality region. 3. Dust control procedures will be required during construction by the project specifications. D. Geologic Hazards There are no known• significant geologic hazards within the area en- compassed by the project. Extensive grading will not be required. E. Flooding, Erosion, and Siltation Project planning calls for construction of this project to occur during autumn, prior to the normal rainy season in this area. Con- struction at that time should preclude the possibility of flooding, erosion, and any subsequent siltation of Newport Bay. F. Groundwater There are no known aquifers in the area of the project. The nature of the construction is such that contamination or blockage of aquifers will not occur. G. Noise Level Construction of the project should not substantially alter the ambient noise levels for the surrounding area, since no new travel lane% will be added to the roadway. During construction, noise levels may rise due to operations which are necessary to construct the project; however these operations will be limited as to working hours to create the minimum of disturbance to neighboring residents, and the operations will cease upon completion of the project. `Environmental Impact Ttatement - Negative Declaratio • Repairs to Balboa Coves Noxious Odor Reduction System C Page 3. I I H. Vegetation and Animal Life There are no known rare or endangered species or habitats of such species of animal or plant life within or adjacent to the project area. I. Short Term Impacts The only short term impacts anticipated are those associated with any similar utility construction. They are such items as noise . and motorist inconvenience during construction These impacts are not considered to have -a significant effect on the environment. J. Summary The project does not appear to have a significant effect on the' environment. V. Basis for Negative Declaration The proposed project has been reviewed in conjunction with Sections 15081 and 15082 of Article 7, Chapter 3 (Guidelines for Implementation of the California Environmental Quality Act of 1970), Title 14, Division 6 of the California Administrative Code. Comparison with the criteria set forth in the above sections indicates that the proposed project will not have a significant environmental impact.' Prepared by: 2. oseph •.Devlin ublic Works Director ity of Neport Beach, California anuary 15, 1975 i 1 i 1 r- • CITY Y OF i\FILIPOR i BEAC' DRAWP r. DATE �-= �J-ra PUBLIC WORKS DEPARTMENT L . ! i?PRDVED Iva ST X/ I'v,,o0.2T' zL'.e'4 WOX/0Lr✓S Gas 9cc �4GE FGQ.2.= srzl C/C-1/OX./' d/JO O/ ,DE L OCl1l/OIL/ PUSLIC WORKS C:RECTOR RE NO DRAW:NG