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HomeMy WebLinkAbout220 Opal Avenue• CITY OF NEWPORT BEACH PUBLIC WORKS DEPARTMENT OPAL AVENUE AND AMETHYST AVENUE STORM DRAINS ENVIRONMENTAL REVIEW --NOTICE OF DETERMINATION A preliminary environmental review of the project for the Opal Avenue and Amethyst Avenue Storm Drains has been performed. The review was conducted in accordance with the requirements of the California Environmental Quality Act of 1970, the State "Guidelines for Implementation of the California Environmental Quality Act of 1970," and the City's "Policies and Procedures for Implementing the California Environmental Quality Act." The environmental statement has been reviewed and was approved by the-City's Environmental Affairs Committee. As a result of the preliminary review, it has been determined that: 1. The project is approved. 2. The project will not have a significant effect on the environment. 3. An environmental impact report has not been prepared. A Negative Declaration has been prepared and is attached hereto. Benjamin B. Nolan Public Works Director AIM:jb 3-19-87 • • OPAL AVENUE STORM DRAIN NEGATIVE DECLARATION BY CITY OF NEWPORT BEACH PUBLIC WORKS DEPARTMENT 1. PROJECT LOCATION: The storm drain construction is located in Opal and Collins Avenue between North Bay Front and 220 Opal Avenue, and along North Bay Front between Agate and Ruby Avenues, all on Balboa Island in the City of Newport Beach. 2. PROJECT DESCRIPTION: An 18-inch diameter storm drain will be installed -in Opal and Collins Avenues to convey storm water from 2 new catch basins to a slide gate structure at the northerly Collins Avenue street end. An 18-inch diameter storm drain pipe will be installed under North Bay Front to convey storm water from new catch basins located at the northerly Agate and Ruby Avenue street ends to the same slide gate structure. The 4-foot by 5-foot by 7-foot deep slide gate structure will be fitted with an electrically operated 24-inch slide gate, which will control the flow of the Island's storm water into Newport Bay and the flow of the high tide bay water into island streets. A 24-inch diameter storm drain pipe will extend approximately 40 feet from the slide gate structure into Newport Bay. The bayward 20 feet of pipe and the upper 2 feet of the slide gate structure will be visible above the public beach and the Collins Avenue Street end, respectively. All other physical features of the project will be subterranean. 3. PROJECT GOALS: The project will provide (1) relief from flooding and splashing of property and person along Opal Avenue, (2) adequate drainage capacity of replace inadequately -sized drains located at the northerly Agate, Ruby and Collins street ends, and 3) a single, electrically operated slide gate to replace 3 manually operated slide gates at the aforementioned street ends. 4. EFFECT ON THE ENVIRONMENT: There will be no significant long-term irreversible or irretrievable effects on the environment. There will be minimal, acceptable short-term disturbances of the environment due to construction activity. 5. BASIS FOR NEGATIVE DECLARATION: This project is consistent with the General Plan policies of the City of Newport Beach and could not have a significant effect on the environment. 6. INITIAL STUDY: The City Of Newport Beach Public Works Department has prepared this Negative Declaration and its Initial Study in accordance with Article 7, Chapter 3, Guidelines for Implementation of the California Environmental Quality Act of 1970. Copies of the Initial Study may be obtained fro rA,said j partment during normal business hours. Benjamin B. Nolan - Public Works Director LRD/bjm 4 OPAL AVENUE STORM DRAIN INITIAL STUDY BY CITY OF NEWPORT BEACH PUBLIC WORKS DEPARTMENT A. CONFORMANCE WITH THE GENERAL PLAN This project is consistent with the General Plan of the City of Newport Beach, in particular, the "Conservation of Natural Resources Element." B. ENVIRONMENTAL CHECKLIST FORM An Environmental Checklist Form (attached) has been completed as a portion of this study. The following statements, referenced to questions presented on the checklist, explain all "yes" and "maybe" answers: II.3.b Construction of catch basins and transmission pipe will increase the runoff rate and reduce the absorption rate correspondingly in the vicinity of the sump condition at mid 200 block of Opal Avenue; however, the increased runoff rate will preclude flooding of public and private property which has occurred heretofore during heavy rain storms. II.14.e Construction of storm drain improvements will result in the need for periodic cleaning of debris from inlet catch basins; however, a correspondingly lesser amount of debris will need to be cleaned from public and private property which flood during heavy rainstorms in absence of the improvements. II.18. Approximately 20 linear feet of the bayward end of the 24-inch-diameter storm drain pipe will be partially exposed along the North Bay Front. In addition, the tide gate struc- ture will project approximately 2 feet above the sidewalk ele- vation at the northerly Opal Avenue street end. Att. 10/12/86 "w' • ENVIRONMENTAL CHECKLIST FORM I. Background 1. Name of Proponent G7ty o/ Nea/ga2�% 2. Address and Phone Number of Proponent 3. Date of Checklist Submission OCleehe r e i gi1 4. !Agency Requiring Checklist Ciry cr/C /1/ D,CZA� 19gC4 5. Title of Project Opal ,1v6n0E 87'�/Orm Aral/7 II. Environmental Impacts 1 (Explanations of all "yes" and "maybe" answers are required on attached sheets.) 1. Earth. Will the proposal result in: la. Unstable earth conditions or in changes in geologic substructures? b. Disruptions, displacements, compaction or overcovering of the ACsoil? c. Change in topography or ground surface relief features? d. The destruction, covering or modification of any unique geologic or physical features? e. Any increase in wind or water erosion of soils, either on or off the site? fi f. Changes in deposition or erosion of beach sands, or changes in siltation, deposition or erosion which may modify the channel of a river or stream or the bed of the ocean or any bay, inlet or lake? . YES MAYBE NO N ,,. • YES MAYBE NO g• Exposure of people or property to geological hazards such as earth- quakes, landslides, mudslides, ground. failure, or similar hazards? 2. Air. Will the proposal result in: a. Substantial air emissions or deteribration of ambient air quality? nye b. The creation of objectionable odors? '< c. Alteration of air movement, moisture or temperature, or any change in climate, either locally or regionally? 3. Water. Will the proposal result in: a. Changes in currents, or the course or• direction of water movements, in either marine or fresh waters? b. Changes in absorption rates, drainage patterns, or the rate and amount of surface runoff? .X c. Alterations to the course of flow of flood waters? AC' d. Change in the amount of surface water in any water body? e. Discharge into surface waters or in any alteration of surface water quality, including but not limited to temperature, dissolved oxygen or turbidity? f. Alteration of the direction .or rate of flow of ground waters? g. Change in the quantity of ground waters, either through direct addi- tions or withdrawals, or through interception of an aquifer by cuts or excavations? h. Substantial reduction in the amount of water otherwise available for public 'water supplies? i. Exposure of people or property to water relatedkhazards_such as --- flooding or tidal waves? YES MAYBE NO ,f 4. Plant Life. Will the proposal result in: a. Change in the diversity of species, or number of any species of plants (including trees, shrubs, grass; crops, and aquatic plants)? b. Reduction of the numbers of any unique, rare or endangered species of plants? c. Introduction of new species of plants into an area, or in a barrier to the normal replenishment of existing species? d. Reduction in acreage of any agricultural crop? 5. Animal Life. Will the proposal result in: a. Change in the diversity of species, or numbers of any species of animals (birds, land animals including reptiles, fish and shellfish, benthic organisms, or insects)? b. Reduction of the numbers of any unique, rare or endangered species of animals? c. Introduction of new species of animals into an area, or result in a barrier to the migration or movement of animals? d. Deterioration to existing fish or wildlife habitat? 6. Noise. Will the proposal result in: a. Increases in existing noise levels? b. Exposure of people to severe noise levels? 7. Light and Glare. • Will the proposal.produce new light or glare? 8w Land Use. Will the proposal result in a substantial alteration of the present or. Planned land -use of`ah area? 1. 'V •• 9. Natural Resources. Will the proposal result in: a. Increase in the rate of use of any natural resources? b. Substantial depletion of any non- renewable natural resource? 10. Risk of Upset. Does the proposal involve a risk of an explosion or the release of hazardous substances (including, but not limited to, oil, pesticides, chemicals or radiation) in the event of an accident or upset conditions? 11. Population. Will the proposal alter the location, distribution, density, or growth rate of the human population of an area? 12. Housing. Will the proposal affect existing housing, or create a demand for additional housing? 13. Transportation/Circulation. Will the proposal result in: a. Generation of substantial additional vehicular movement? b. Effects on existing parking facilities, or demand for new parking? c. Substantial impact upon existing transportation systems? d. Alterations to present patterns, of circulation or movement of people and/or goods? e. . Alterations to waterborne, rail or air traffic? f. Increase in traffic hazardous to motor vehicles, bicyclists or pedestrians? 14. Public Service's. Will the proposal have an effect upon, or result in a need for new or al tered.governmental services in_any_of'the following areas; YES MAYBE NO X YES MAYBE NO a. Fire protection? Nr b. Police protection? k c. Schools? dC' d. Parks or'other recreational. facilities? X e. Maintenance of public facilities, including roads? -- f. Other governmental services? 15. Energy,. Will the proposal result in: a. Use of substantial amounts of fuel or energy? x b. Substantial increase in demand upon existing sources of energy, or require the development of new sources of energy? 16. Utilities. Will the proposal result in a need for new systems, or substantial alterations to the following utilities: a. Power or natural gas? b. Communications systems? c. Water? d. Sewer or septic tanks? e. Storm water drainage? f. Solid waste and disposal? 17. Human Health. Will the proposal result in: a. Creation of any health hazard or potential health hazard (excluding A(mental health)? b. Exposure of people to potential health hazards?. 18. Aesthetics. Will the proposal result in the obstruction of any scenic vista or view open to the public, or will the proposal result ' in the creation of anaesthetically offensive site open to public view? • • YES MAYBE N0 Ac K x 19. Recreation. Will the proposal result in an impact upon the quality or quantity of -existing recreational opportunities? 20. Archeological/Historical. Will the proposal result in an alteration of a significant,archeological or historical site, structure, object or building? 21. Mandatory Findings of Significance. a. Does the project have the potential to degrade the quality of the environment, substantially reduce the habitat of a fish or wildlife species, cause a fish or wildlife population to drop below self-sustaining levels, threaten to eliminate a plant or animal community, reduce the number or restrict the range of a rare or endangered plant or animal or eliminate important examples of the major periods of California history or prehistory? b. Does the project have the potential to achieve short-term, to the disadvantage of long-term, environmental goals? (A short-term impact on the environment is one which occurs in a relatively brief definitive period of time while long- term impacts will endure well into the future.) c. Does the project have impacts which are individually limited, but cumu- \, latively considerable? (A project may impact on two or more separate resources where the impact on each resource•is relatively small, but where the effect of the total of those impacts on the environment is significant.) d. Does the project have environmental effects which will cause substantial adverse effects on human beings, either directly or indirectly?