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Home My WebLink AboutRCC AGENDA PK 2001/04/11 Mitigated Negative Declaration PROJECT NAME: VISTA DEL LORO SUBDIVISION PROJECT LOCATION: Terminus of El Loro Street, North of Quintard Street ASSESSOR'S PARCEL NO,: 619-290-16, IS, and 20 PROJECT APPLICANT: Dan Irwin aka Dbl D, Fish CASE NO,: IS-OI-OS DATE: April 11 ,2001 A, Project Setting The 2,03-acre project site is a rectangular shaped parcel located at the terminus of El Loro Street, north of Quintard Street, between 3cd and 4th Avenues (Exhibit A -Locator Map). The site is vacant and partially surrounded by chain link fencing. The site was previously filled and used to pasture horses and to raise hay, The surrounding area is fully developed with the following uses: North Single- family residential; East Single- family residential; West Single-family residential; and South Single-family residential. The site is gently sloping and contains non-native plant material. No listed plant or animal species is known to occupy the site or surrounding area, The site has been previously filled and no cultural or paleontological resources are known to be present. B, Project Description The proposed project is a 9-lot subdivision with a minimum lot size of 7,000 sq,ft, (Exhibit B - Tentative Map), The proposed lot sizes range ITom a minimum of 7,000 sq,ft, to a maximum of 10,969 sq,ft, The average lot size is 7,850 sq,ft, and the proposed density is 4.43 du/gross acre, The current configuration of the site was created through a previously approved Adjustment Plat (No. 00, I 0), Approval of the proposed subdivision would divide the three existing legal lots (APN 6 I 9-290- 16, IS, 20) into nine legal lots, Development of the site requires the importation I 5,SOO cu,yds, of fill material to create level building pads, Streets, sewer, storm drainage, water, and other public utilities would be provided to each lot. Dwelling units are proposed to be approximately 1,900 sq, [t, and 2S- feet in height. I 04/11101 C. Compliance with Zoning and Plans The proposed subdivision is consistent with the R-1-7 (Single-family Residential) zoning designation, which requires a minimum lot size of 7,000 sq,ft, The proposed project is also consistent with the LM (Low Medium Residential) General Plan designation (3-6 dulgross ac.), and the City's environmental plans and policies, The project is located in the Montgomery Specific Planning Area, which designates the site as Low-Medium Residential (3-6 dulac), Proposed dwelling units are in compliance with the Municipal Code and are subject to review and approval by the Design Review Committee 0, Public Comments On November 27, 2000 a Notice of Initial Study was circulated to property owners within 500-foot radius of the proposed project site, The public period ended December 7,2000, No written comments were received, E. Identification of Environmental Effects An Initial Study conducted by the City of Chula Vista (including an attached Environmental Checklist fonn) detennined that although the proposed project could have a significant environmental effect, there will not be a significant effect in this case because mitigation measures described in Section F below have been added to the project, The preparation of an Environmental Impact Report will not be required, This Mitigated Negative Declaration has been prepared in accordance with Section 15070 of the State CEQA Guidelines, 1. Air Quality Construction-Related Impacts The proposed project would generate sufficient emissions and dust during construction- related activities to result in a short-tenn significant, but mitigable, impact to air quality, During the construction phase of the project, short-tenn emissions of several types of air pollutants would occur. Dust would be generated and the combustion of fossil fuels by construction equipment would create emissions, Fugitive dust would also be created due to clearing, earth movement, and travel on unpaved surfaces. Although air quality impacts resulting from construction related emissions are potentially significant, they are considered short-tenn in duration since construction is a relatively short-tenn, one-time activity, Dust control during grading operations would be regulated in accordance with the rules and regulations of the San Diego Air Pollution Control District (APCD). During construction of the project, the project will be subject to mitigation measures outlined below in Section F, 2 04/I 1/01 2, Geophysical Construction-Related Impacts Short-tenn erosion of the cut and fill slopes could result in significant, but mitigable, downstream sedimentation impacts, Although erosIOn impacts resulting trom construction activity and grading are potentially significant, they are considered short- tenn in duration since construction is a relatively short-tenn, onetime activity, During construction of the project, the project will be subject to mitigation measures outlined below in Section F, 3, Paleontological Resources Construction-Related Impacts The proposed project could result in significant paleontological impacts because an eight- foot cut slope in the southwest comer of the site would be required to create level building pads along the southern property boundary (see Section III above), The site is underlain by fill soils and slopewash to a maximum depth of four feet over sandstone of the Bay Point fonnation and "uunamed marine sandstone (terraces),"), The Bay Point Fonnation and "unnamed marine terrace deposits" have been found to contain a diverse and well-preserved assemblage of marine invertebrate fossils and rare vertebrate fossils and are assigned a high resource sensitivity. During construction of the project, the project will be subject to mitigation measures outlined below in Section F, F, Mitigation Necessary to A void Significant Impacts Project-specific mitigation measures are required to reduce potential environmental impacts identified in the Initial Study to a less than significant level. The mitigation measures will be made a condition of approval, as well as requirements of the attached Mitigation Monitoring Program (Attachment "A"), AIR QUALITY Construction Related Impacts I. All unpaved construction areas shall be sprinkled with water or other acceptable dust control agents during dust-generating activities to reduce dust emissions, Additional watering or dust control agents shall be applied during dry weather or windy days until dust emissions are not visible, 2, Trucks hauling dirt and debris shall be properly covered to reduce windblown dust and spills, 3, A 20-mile-per-hour speed limit on unpaved surfaces in connection with the project shall be enforced, 3 04111101 4, On dry days, dirt and debris spilled onto paved surfaces shall be swept up immediately to reduce re-suspension of particulate matter caused by vehicle movement. Approach routes to construction sites shall be cleaned daily of construction-related dirt in dry weather. 5, On-site stockpiles of excavated material shall be covered or watered, 6, Disturbed areas shall be hydroseeded, landscaped, or developed as quickly as possible and as directed by the City to reduce dust generation, 7, Heavy-duty construction equipment with modified combustion/fuel injection systems for emissions control shall be utilized during grading and construction activities. Catalytic reduction for gasoline-powered equipment shall be used, Also, construction equipment shall be equipped with prechamber diesel engines (or equivalent) together with proper maintenance and operation to reduce emissions of nitrogen oxide, to the extent available and feasible. . GEOPHYSICAL Construction Related Impacts I. Temporary desilting and erosion control devices shall be installed as specified on the Tentative Map. These devices include desilting basins, benns, hay bales, silt fences, dikes, and shoring. Protective devices will be provided at every stonn drain inlet to prevent sediment from entering the stonn drain system, 2, Additional erosion control measures will be installed as required by the City Engineer due to uncompleted grading operations or unforeseen circumstances that may arise. PALEONTOLOGICAL RESOURCES Construction Related Impacts I. A qualified a paleontologist will be retained to implement a paleontological monitoring and recovery program as a condition of the project construction contract. A qualified paleontologist is defined as an individual with and MS or Ph,D, in paleontology or geology that is a recognized expert in the identification and recovery of fossil materials, 2, The qualified paleontologist will attend the project pre-construction meeting to discuss project-grading plans with the project contractor(s), If the qualified paleontologist detennines that proposed excavation/grading will likely cut into undisturbed portions of the Tertiary San Diego fonnation, then monitoring will be conducted as outlined below. 3, The project paleontologist or a paleontological monitor will be on-site during original cutting of the above noted geologic units. A paleontological monitor is defined as an individual who has experience in collection and salvage of fossil materials, and who is working under the direction of a qualified paleontologist. Monitoring of the noted geologic units will be at least half time at the beginning of excavation, and will be either increased or decreased depending on initial results (per direction by the project paleontologist). 4 04/11/01 4. In the event that well-preserved fossils are discovered, the project paleontologist will have the authority to temporarily halt or redirect construction activities in the discovery area to allow recovery in a timely manner (typically on the order of I hour to 2 days), All collected fossil remains will be cleaned, sorted and catalogued, and deposited in an appropriated scientific institution such as the San Diego Museum of Natural History, 5, A report (with a map showing fossil site locations) summarizing the result, analyses and conclusions of the above described monitoring/recovery program will be submitted to the City of Chula Vista Planning Department within three months of terminating monitoring activities, I agree to implement the mitigation measures required as stated in this Section (F) of this Mitigated Negative Declaration, O~ß4J~ p~ ê' 5 ÙdL U ¡-/ ft-f '-I_II-Or Name, Title Date 5 04/11101 G, Consultation 1. City ofChula Vista: Marilyn R,F, Ponseggi, Planning Division Edalia Olivo-Gomez, Planning Division Doug Perry, Fire Marshall Samir Nuhaily, Engineering Department Beverly Blessent, Planning Division Ralph Leyva, Engineering Department M,], Donnelly, Engineering Department Applicant's Agent: Dan Irwin 2, Documents Chula Vista General Plan (1989) and E1R (1989) Title 19, Chula Vista Municipal Code, September 1997 3, Initial Study This environmental determination is based on the attached Initial Study, any comments received on the Initial Study and any comments received during the public review period for this negative declaration, The report reflects the independent judgement of the City ofChula Vista, Further information regarding the environmental review of this project is available from the Chula Vista Planning Department, 276 Fourth Avenue, Chula Vista, CA 91910, ~t Date: '1/"/01 Environmental Review Coordinator 6 04/11/0 I SOUTH CHULA VISTA LIBRARY E8ffiHHE ~~ PROJECT DBL 0 FISH PROJECT DESCRIPTION: R APPLICANT: INITIAL STUDY PROJECT EI Lora Street Request: Proposed construction of (9) single family detached ADDRESS: homes on 2.03 acres (minimum 7,000 square foot lots). - FILE NUMBER: = LOCATOR 18-01-08 No Scale C:\myfiles\locators\180108,cdr 11/13/00 e.~n,b,+ Å. ~I """1 · '~G : . I ' ( I ~H . I' II ""-.v . a. . . ill; . . . '~i;\~:;f' ~ . I ! J ~ II" ~ ~ i ~ .11 ~.. ¡ I ~ 1'1 'is; ø" III I I i ',. h~II!\1 !I!! .Iji " I I . , · I "II Ii·· ' I Ii II!! .¡!!i: §~II :,~: Mli ~.¡¡ I!!I II ~i . i! I H L. ~ ! ~ ~ ~ ,. ~ t f ~ ~ n n ~ '1111 I ~ } I' I ~~ .. :".J'~, >:;]^-.' ~n!!!HH I . ""t¡ :J , II t t:;:. . g ISHuun 0 ' ~ "~I B ó Z I IIIi' ". .ic~, LillI! ~ § !i......... E-o . ' '"li;1 -------- u ~ & ~ -< i, ,cl '-'-' <£, ~ :J M If! 1IY9ll'1 'nI E-o ';;' ~ j'- - ]''- -<0 . I " E-o~ mo I -,..:¡ f :> I I jçj t--:i ~ ~ I..¡~-+\! '-, :I:: -< " '3 UE-o Î ~~ 1m, '%' 0..- I" ~> ~l I" ~"" .--'-', - - -- -- --'¡--'- ~ - I ~ _.~~;~~!-!;"-; , E-- I r , , ':. .; '-'., " -< .'; ~'" ...._0( :.. 1:, '- .~ -, .. ,. y. t ~ ~ Eo-< I Ú ~ ".' 1,1'.: j I I ~' I I ì , I' i,~;:;\t - ;.,;',- \ 'J / ,,,,,,"' J /':', , ~I-~··j( 17:( ~ c' "., ") I Case No.IS-Ol-08 ENVIRONMENTAL CHECKLIST FORM 1. Name of Proponent: Dan Irwin aka ObI 0 Fish 2, Lead Agency Name and Address: City of Chula Vista 276 Fourth A venue Chula Vista, CA 91910 3. Address and Phone Number of Proponent: 7449 Girard Ave, San Diego, CA 92037 (619) 840-7716 4. Name of Proposal: Vista De Loro Subdivision 5. Date of Checklist: April 11, 2001 Potentially Potentially Significant Less than Significant Unless Significant No Impact Mitigated Impact Impact I. LAND USE AND PLANNING. Would the proposal: a) Conflict with general plan designation or zoning? 0 0 0 18 b) Conflict with applicable environmental plans or 0 0 0 18 policies adopted by agencies with jurisdiction over the project? c) Affect agricultural resources or operations (e,g" 0 0 0 18 impacts to soils or farmlands, or impacts from incompatible land uses)? d) Disrupt or divide the physical arrangement of an 0 0 0 18 established community (ineluding a low-income or minority community)? Comments: The proposed 9-lot subdivision is consistent with the R-l (Single-family Residential) zoning designation, LM (Low Medium Residential) General Plan designation, and the City's environmental plans and policies. The project is also consistent with the Montgomery Specific Plan, which designates the site as Low-Medium Residential (3-6 duJac), The site is a rectangular-shaped parcel encompassing 2,03 acres, The site is vacant and a portion of the site was previously used as a horse pasture and for growing hay; however, the site has not been used for commercial agriculture, The surrounding area is fully developed with residential uses, The proposed subdivision would not change the physical arrangement of the community, Mitigation: No mitigation is required, II. POPULATION AND HOUSING. Would the proposal: a) Cumulatively exceed official regional or local 0 0 0 18 population projections? b) Induce substantial growth in an area either 0 0 0 18 I 4/11/01 PotentiaUy Potentially Significant Less than Significant Unless Significant No Impact Mitigated Impact Impact directly or indirectly (e,g" through projects in an undeveloped area or extension of major infrastructure)? c) Displace existing housing, especially affordable 0 0 0 I;! housing? Comments: The project is an infill development surrounded by existing residential development and does not involve an extension of public facilities that would induce substantial growth, No existing housing units would be displaced, Development of9 single-family units is consistent with the General Plan and would not exceed the regional or local population projections, Mitigation: No mitigation is required III. GEOPHYSICAL. Would the proposal result in or expose people to potential impacts involving: a) Unstable earth conditions or changes in geologic 0 0 0 I;! substructures? b) Disruptions, displacements, compaction or 0 0 I;! 0 overcovering of the soil? c) Change in topography or ground surface relief 0 0 I;! 0 features? d) The destruction, covering or modification of any 0 0 0 I;! unique geologic or physical features? e) Any increase in wind or water erosion of soils, 0 I;! 0 0 either on or off the site? t) Changes in deposition or erosion of beach sands, 0 0 0 I;! 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? g) Exposure of people or property to geologic 0 0 0 I;! hazards such as earthquakes, landslides, mud slides, ground failure, or similar hazards? Comments: A "Soils Investigation" completed for the property reports that the site is underlain by fill soils and slopewash to a maximum depth of four feet over sandstone of the Bay Point fonnation and Unnamed Marine Sandstone, An expansion test of the soils indicates that the soils have a low potential for expansion, Groundwater is anticipated at a depth greater than 100 feet, and the site has a low potential for liquefaction, The Engineering Department, as a standard requirement of grading permit approval, requires that a geotechnical/soils study be prepared and that the report's recommendations be incorporated into the final grading plan, The site slopes downward from west to east; elevations on the site range from 110 feet above mean sea level (AMSL) at the western property boundary to 94 feet AMSL at the southeast comer ofthe property, To create level building pads along the southern property boundary requires an eight-foot cut slope in the southwest comer of the site and an II-foot fill slope in the southeast comer of the site, To create these building pads (Lots 4-9),15,800 cu,yds, offill material would be imported, 2 4/1 1/01 Potentially Potentially Significant Less than Significant Unless Significant No Impact Mitigated Impact Impact Best Management Practices (BMPs) are required to be implemented during and after construction to prevent erosion and sedimentation in the downstream storm drain system, All grading operations will be performed in compliance with the City ofChula Vista Grading Ordinance (Ordinance 1797, as amended), Short-term erosion of the cut and fill slopes could result in significant, but mitigable, downstream sedimentation impacts, Although erosion impacts resulting from construction activity and grading are potentially significant, they are considered short-term in duration since construction is a relatively short- term, onetime activity, During construction of the project, the project will be subject to mitigation measures outlined below in Section XIX, Potentiallong-tenn erosion impacts would be avoided than significant level through the planting and irrigation of slopes as required by the Chula Vista Landscape Manual and Grading Ordinance 1797, as amended by Ordinance 1877, Landscaping will be installed as shown on the Conceptual Landscape Plan as approved by the City Landscape Architect, Finish grading and planting will be accomplished prior to October I, or immediately upon completion of any slopes graded between October I and April I, The site is not within a mapped Earthquake Fault Zone; the Rose Canyon Fault Zone is approximately 21 miles to the north, and the La Nacion earthquake fault is approximately three miles to the east. Compliance with the Uniform Building Code requirements would avoid potentially significant geologic impacts, No significant geophysical effects would result from construction of the subdivision, Mitigation: Mitigation measures listed in Section XIX would reduce impacts to a less than significant level. IV. WATER. Would the proposal result in: a) Changes in absorption rates, drainage patterns, 0 0 ¡¡ 0 or the rate and amount of surface runoff? b) Exposure of people or property to water related 0 0 0 ¡¡ hazards such as flooding or tidal waves? c) Discharge into surface waters or other alteration 0 0 0 ¡¡ of surface water quality (e,g" temperature, dissolved oxygen or turbidity)? d) Changes in the amount of surface water in any 0 0 0 ¡¡ water body? e) Changes in currents, or the course of direction of 0 0 0 ¡¡ water movements, in either marine or fresh waters? f) Change in the quantity of ground waters, either 0 0 0 ¡¡ through direct additions or withdrawals, or through interception of an aquifer by cuts or excavations? g) Altered direction or rate of flow of groundwater? 0 0 0 ¡¡ h) Impacts to groundwater quality? 0 0 0 ¡¡ i) Alterations to the course or flow of flood waters? 0 0 0 ¡¡ j) Substantial reduction in the amount of water 0 0 0 ¡¡ 3 4/1 I/O I Potentially Potentially Significant Less than Significant Unless Significant No Impact Mitigated Impact Impact otherwise available for public water supplies? Comments: A "Preliminary Drainage Study" (DGB Survey & Mapping, 2/13/01) prepared for the proposed project reports that under existing conditions the runoff from the site during a 50-year storm is 11.7 cubic feet per second (cfs), Existing surface run-offrrom the site includes drainage from areas to north, west and east. The run-off is concentrated at the southeast corner of the site and drains to a 2 I-inch storm drain across lot 29 of Map No, 5542, and then discharges through a curb outlet into EI Lugar Street. The proposed development would increase the runoff from the site to 13.4-cfs (an increase of 1.7 cfs), Existing runoff from the north, east and west would be collected at a curb inlet at the end of Preston Place and a brow ditch that would connect to an IS-inch storm drain in EI Loro Street. On-site runoff would be collected in curb inlets connected to the EI Loro Street storm drain, Runoff would be conveyed by the storm drain to a retention basin located in the southeast corner of the site, The retention basin will be formed between the existing slope of the lots at the end of Morehouse Place and the slope at the rear of the proposed building pads. An earthen dam with 2: I slopes is proposed to create the retention basin, The maximum height of the darn would be eight feet. The westerly face of the darn would be covered with rock slope protection, and the side slopes of the basin would be planted with an approved ground cover for erosion protection, The retention basin, with a capacity of9,700 cubic feet, would retain all runoff rrom the site, A six-inch pipe installed at the base of the proposed darn would drain the basin at the rate of 1.44 cfs. Drainage from the basin would be conveyed by the existing drainage channel to the 21-inch storm drain in EI Lugar Street. A Type "F" catch basin and IS-inch storm drain would be installed at the top of the darn to drain the basin, should it ever fill completely, The proposed storm drain system and retention basin plan has been preliminarily reviewed by the City Engineering Department and found to comply with City requirements, Conditions of approval will be provided by the Engineering Department to insure the final design and construction meet Engineering and Public W arks Operations requirements, The City's Operations crew will maintain the retention basin, An access road from EI Loro is included in the design ofthe subdivision, No impacts are anticipated to resu1t rrom the construction of the retention basin and storm drain system. Drainage from the site would not significantly impact surface water in water bodies in the area, The project site is not located within a mapped floodplain, and floodwater would not be altered by the proposed development. Future residents would not be exposed to flooding or tidal waves. Given the 100- foot depth to groundwater, groundwater quality would not be significantly impacted by the proposed development. The project would not substantially reduce the availability of public water supplies nor would the project utilize groundwater. No impacts are anticipated to result rrom development ofthe site, A National Pollutant Discharge Elimination System (NPDES) General Permit and a Storm Water Pollution Plan (SWPP) are not required by Chula Vista Municipal Code (Section 14,20) because the project will result in soils disturbance of less than five acres, However, the code requires the implementation of Best Management Practices to prevent pollution of storm drain facilities during and after construction, Development of the site with a 9-unit residential development would result in a negligible increase in surface water run-off, A standard Engineering Department condition of approval requires drainage improvements to be included on the first submittal of grading/improvement plans that identifies the method to be used to convey on-site surface water. Mitigation: No mitigation measures are required, V. AIR QUALITY. Would the proposal: a) Violate any air quality standard or contribute to 0 ti] 0 0 4 4/11/0 I Potentially Potentially Signifiçant Less than Significant Unless Significant No Impact Mitigated Impact Impact an existing or projected air quality violation? b) Expose sensitive receptors to pollutants? 0 0 0 I1J c) Alter air movement, moisture, or temperature, or 0 0 0 I1J cause any change in climate, either locally or regionally? d) Create objectionable odors? 0 0 0 I1J e) Create a substantial increase in stationary or non- 0 0 I1J 0 stationary sources of air emissions or the deterioration of ambient air quality? Comments: The proposed project would generate sufficient emissions and dust during construction- related activities to result in a short-tenn significant, but mitigable, impact to air quality, During construction, dust generated by grading and the combustion of fossil fuels by construction equipment would create emissions, Fugitive dust would also be created due to clearing, earth movement, and travel on unpaved surfaces. Although air quality impacts resulting from construction related emissions are potentially significant, they are considered short-tenn in duration since construction is a relatively short- tenn, onetime activity, Dust control during grading operations would be regulated in accordance with the rules and regulations of the San Diego Air Pollution Control District (APCD), During construction ofthe project, the project will be subject to mitigation measures outlined below in Section XIX, The proposed 9-unit subdivision is consistent with the City's General Plan and Regional Air Quality forecasts and would hot substantially affect regional air quality, The project would generate an additional 90 average daily trips, The project would not alter air movements, humidity, or climatic temperature, The use and occupancy of the site as single-family residential development would not create objectionable odors or expose sensitive receptors to pollutants. Mitigation: Mitigation measures listed in Section XIX would reduce impacts to a less than significant level. VI. TRANSPORTATION/CIRCULATION. Would rhe proposal result in: a) Increased vehicle trips or traffic congestion? 0 0 I1J 0 b) Hazards to safety from design features (e,g,. 0 0 0 I1J sharp curves or dangerous intersections) or incompatible uses (e,g" farm equipment)? c) Inadequate emergency access or access to nearby 0 0 0 I1J uses? d) Insufficient parking capacity on-site or off-site? 0 0 0 I1J e) Hazards or barriers for pedestrians or bicyclists? 0 0 0 I1J t) Conflicts with adopted policies supporting 0 0 0 I1J alternative transportation (e,g, bus turnouts, bicycle racks)? g) Rail, waterborne or air traffic impacts? 0 0 0 I1J h) A "large project" under the Congestion 0 0 0 I1J 5 4/11/01 Potentially Potentially Significant Less than Significant Unless SignifiCJ'lut No Impact Mitigated Impact Impact Management Program? (An equivalent of 2400 or more average daily vehicle trips or 200 or more peak-hour vehicle trips,) Comments: The importation of 15,800 cu,yds, of fill material will require approximately 1,250 truck trips assuming each truck carries 12 cu,yds, of material. Twenty-five truck trips per day for a 50-day work period is estimated to be required to complete the grading operation, The identified source of material is the Olympic Parkway construction project. City approved truck routes (Orange Ave" I-80S, Main St., and Fourth Ave,) would be used to haul the material to the site, From Fourth Avenue, the trucks would enter and exit the site by crossing an adjacent parcel ofland (APN 619-290-16). Trucks will be covered to prevent spillage and earth materials will be wetted to minimize dust during transport, No significant impacts would result from transporting fill material to the site, Traffic generated by the proposed 9-unit residential project would have a minimal effect on traffic pattems and volumes on the adjacent streets, The City Engineering Division estimated that an additional 90 trips per day (ADT) would result /Tom the residential project (the trip generation rate per unit is 10 trips per day), The additional 90 ADT would not change the LOS on Quintard Street or Third Avenue, The existing and projected traffic volume on these streets would not exceed the City's Level of Service (LOS) design volume of LOS C. The Engineering Division has concluded that the project would provide satisfactory traffic service for future buildout General Plan conditions because Quintard Street and Third A venue would operate at LOS C or above, The City Engineering Department review of the site plan concluded that the proposed on-site circulation is adequate, The project would be required to install a curb, gutter and sidewalk along the extension ofEI Loro Street per City engineering standards, Eighteen on-site enclosed parking spaces (two per unit) are required, No hazards or barriers for pedestrians or bicyclists would be created by the proposed single- family project. No significant traffic related impacts would result. Mitigation: No mitigation measures are required, VII. BIOLOGICAL RESOURCES. Would the proposal result in impacts to: a) Endangered, sensitive species, species of concern 0 0 0 ¡;;¡ or species that are candidates for listing? b) Locally designated species (e,g" heritage trees)? 0 0 0 ¡;;¡ c) Locally designated natural communities (e,g., 0 0 0 181 oak forest, coastal habitat, etc,)? d) Wetland habitat (e.g" marsh, riparian and vernal 0 0 0 181 pool)? e) Wildlife dispersal or migration corridors? 0 0 0 ¡;;¡ f) Affect regional habitat preservation planning 0 0 0 181 efforts? Comments: The 2,03-acre site is located in an urbanized area and has been disturbed by previous equestrian activities, Non-native weedy plants are scattered across the site, No listed plant or animal species are present. No significant biological impacts would result. Mitigation: No mitigation measures are required, 6 4/11/01 Potentially Potentially Significant 1Æss than Significant Unless Significant No Impact Mitigated Impact Impact VIII. ENERGY AND MINERAL RESOURCES. Would the proposal: a) Conflict with adopted energy conservation plans? 0 0 0 [8 b) Use non-renewable resources in a wasteful and 0 0 0 [8 inefficient manner? c) If the site is designated for mineral resource 0 0 0 [8 protection, will this project impact this protection? Comments: The proposed project does not conflict with the recently adopted C02 Reduction Plan, The C02 Reduction Plan encourages infill housing, The infill project will provide nine housing opportunities for large families, The current use of the land only provides for a maximum of three housing opportunities, The project proponent will provide curb, gutter, and sidewalk along the EI Loro Street frontage that will aid pedestrian circulation in the project area, The project is also located near commercial uses on 3" A venue that could potentially result in less reliance on the automobile, The proposed project is subject to compliance with Energy Requirements of the Uniform Building Code and therefore, should not result in the use of non-renewable resources in a wasteful and inefficient manner, The project is not located in an area designated for mineral resource protection as defined in the City's General Plan, Mitigation: No mitigation measures are required, IX. HAZARDS. Would the proposal involve: a) A risk of accidental explosion or release of 0 0 0 [8 hazardous substances (including, but not limited to: petroleum products, pesticides. chemicals or radiation)? b) Possible interference with an emergency 0 0 0 [8 response plan or emergency evacuation plan? c) The creation of any health hazard or potential 0 0 0 [8 health hazard? d) Exposure of people to existing sources of 0 0 0 [8 potential health hazards? e) Increased fire hazard in areas with flammable 0 0 0 [8 brush, grass, or trees? Comments: The site was fonnerly used as a horse pasture and for raising hay and there are no known potential health hazards in the vicinity of the project site, Hazardous materials would not be used in the residential development and the project wou1d not interfere with emergency response p1ans, The General Plan Public Safety Element designates Orange A venue as an Evacuation Route, No significant hazard impacts would result from construction and occupancy of the residential project. Mitigation: No mitigation measures are required, 7 4/11/01 Potentially Potentially Significant Lesstban Significant Unless Significant No Impact Mitigated Impact Impact X. NOISE. Would the proposal result in: a) Increases in existing noise levels? 0 0 r8I 0 b) Exposure of people to severe noise levels? 0 0 r8I 0 Comments: Noise impacts would occur during the construction period; however, these noise are considered to be less than significant due to their short-tenn nature and the intennittent periods of noise generation, Grading operations would occur between 7:00 a,m, and 5:00 p,m, Monday through Friday, Construction noise is exempt from the provisions of the City noise ordinance (see Municipal Code section 19,68,060), Consequently, noise associated with the grading operation would be regulated by conditions included in the approved grading pennit. The 9-unit residential project and associated traffic would not result in a measurable increase in noise, There are no noise generators in the vicinity ofthe project. No significant long-tenn impacts would result from occupancy of the project. Mitigation: No mitigation measures are required, XI. PUBLIC SERVICES. Would the proposal have an effect upon, or result in a need for new or altered government services in any of the following areas: a) Fire protection? 0 0 0 r8I b) Police protection? 0 0 0 r8I c) Schools? 0 0 r8I 0 d) Maintenance of public facilities, including roads? 0 0 0 r8I e) Other governmental services? 0 0 0 r8I Comments: The City Fire Marsha]] reported that the project would not result in an impact to fire services, Police Department recommendations concerning "defensible space" design are required to be incorporated into the project design, School fees would be paid at the building pennit stage in accord with provisions of state law and school district ordinances, The Chula Vista Elementary School District recommends annexation of the project site to the District's Community Facilities District (CFD) No, 10 in lieu of school fees, The Sweetwater Union High School District also recommends annexation of the project site to the District's Community Facilities District, However, under State Law the payment of school fees reduces impacts to school facilities to a level below significance, No new or altered public facilities or other governmental services would be required for the project. Mitigation: No mitigation measures are required, XII. Thresholds. Will the proposal adversely impact the 0 0 0 r8I City's Threshold Standards? As described below, the proposed project does not significantly impact any of the seven Threshold Standards, a) Fire/EMS 0 0 0 r8I The Threshold Standards requires that fire and medical units must be able to respond to calls within 7 minutes or less in 85 % of the cases and within 5 minutes or less in 75 % of the cases, The City of Chula Vista has indicated that this threshold standard will be met, since 8 4/11/0 I Potentially Potentially Significant Less than Significant Unless Significant No Impact Mitigated Impact Impact the nearest fire station is one-half mile away and would be associated with a two -minute response time, Comments: The firelEMS threshold would be met as reported by the Fire Department. Mitigation: No mitigation measures are required, b) Police 0 0 0 181 The Threshold Standards require that police units must respond to 84 % of Priority 1 calls within 7 minutes or less and maintain an average response time to all Priority 1 calls of 4,5 minutes or less, Police units must respond to 62,10% of Priority 2 calls within 7 minutes or less and maintain an average response time to all Priority 2 calls of 7 minutes or less, Comments: The police threshold would be met as reported by the Police Department. Mitigation: No mitigation measures are required, c) Traffic 0 0 0 181 1. City-wide: Maintain LOS "C" or better as measured by observed average travel speed on all signalized arterial segments except that during peak hours a LOS of "D" can occur for no more than any two hours of the day, 2, West of 1-805: Those signalized intersections which do not meet the standard above may continue to operate at their current 1991 LOS, but shall not worsen, Comments: The project would generate 90 average daily trips (ADT), The Engineering Division reports that the City LOS C standard would be met on Quintard Street and Third Avenue, Mitigation: No mitigation measures are required, d) Parks/Recreation 0 0 0 181 The Threshold Standard for Parks and Recreation is 3-acres/1 ,000 population east of 1-805, The proposed project would comply with this Threshold Standard, Comments: The proposed project is located west ofI-805, therefore, the Parks and Recreation Threshold Standard does not apply, Mitigation: No mitigation measures are required, e) Drainage 0 0 0 181 The Threshold Standards require that storm water flows and volumes not exceed City Engineering Standards, Individual projects will provide necessary improvements consistent with the Drainage Master Plan(s) and City Engineering Standards, Comments: The Engineering Division has reviewed the preliminary storm drain system and retention basin plan and found that it complies with city requirements, The Engineering Department will review final grading and improvement plans to insure that adequate drainage improvements are provided (see Section IV above), 9 4/11101 Potentially Potentially SignmC3nl Less tban Significant Unless Signmcant No Impact Mitigated Impact Impact Mitigation: No mitigation measures are required, f) Sewer 0 0 0 0 The Threshold Standards require that sewage flows and volumes not exceed City Engineering Standards, Individual projects will provide necessary improvements consistent with Sewer Master Plan(s) and City Engineering Standards, Comments: The City Engineering Division has detennined that sewer facilities are adequate to serve the proj ecl. Mitigation: No mitigation measures are required, g) Water 0 0 0 0 The Threshold Standards require that adequate storage, treatment, and transmission facilities are constructed concurrently with planned growth and those water quality standards are not jeopardized during growth and construction, Applicants may also be required to participate in whatever water conservation or fee off-set program the City of Chula Vista has in effect at the time of building permit issuance, Comments: The Sweetwater Authority has detennined that a water main will need to be extended to the site /Tom El Loro Street or Fourth Avenue, This off-site extension would be within an existing roadway and developed area and would not result in significant impacts, Mitigation: No mitigation measures are required, XIII. UTILITIES AND SERVICE SYSTEMS. Would the proposal result in a need for new systems, or substantial alterations to the following utilities: a) Power or natural gas? 0 0 0 0 b) Communications systems? 0 0 0 0 c) Local or regional water treatment or distribution 0 0 0 0 facilities? d) Sewer or septic tanks? 0 0 0 0 e) Storm water drainage? 0 0 0 0 f) Solid waste disposal? 0 0 0 0 Comments: The Sweetwater Authority (SW A) reports that water service is available to the site from a main located in EI Loro Street or Fourth A venue, Fire flow requirements have been detennined to be adequate by the Fire Department and SW A, The proposed residential project would not require the installation of new systems or cause alteration to existing facilities, As noted in Sections IV and XII above, stonn water and sewer facilities are adequate to serve the site, Underground electrical and telephone services would be extended to the site from the nearest available power supply, The extension of services would not require new systems to be installed, or alterations of existing utilities, Mitigation: No mitigation measures are required, 10 4/11/01 PotentiaUy Potentially Significant Lesstban Significant Unless Significant No Impact Mitigated Impact Impact XIV. AESTHETICS. Would the proposal: a) Obstruct any scenic vista or view open to the 0 0 0 1<1 public or will the proposal result in the creation of an aesthetically offensive site open to public view? b) Cause the destruction or modification of a scenic 0 0 0 1<1 route? c) Have a demonstrable negative aesthetic effect? 0 0 0 1<1 d) Create added light or glare sources that could 0 0 0 i! increase the level of sky glow in an area or cause this project to fail to comply with Section 19,66,100 of the Chula Vista Municipal Code, Title 19? e) Produce an additional amount of spill light? 0 0 0 1<1 Comments: No adverse aesthetics impacts are anticipated because the site would not obstruct a scenic vista or view and the project site does not front on a scenic route, Implementation of City Code standards would minimize light and glare produced by the design of the project. No adverse impacts have been identified, The project requires review and approval by the City's Design Review Committee, Mitigation: No mitigation measures are required, XV. CULTURAL RESOURCES. Would the proposal: a) Will the proposal result in the alteration of or the 0 0 0 i! destruction or a prehistoric or historic archaeological site? b) Will the proposal result in adverse physical or 0 0 0 1<1 aesthetic effects to a prehistoric or historic building, structure or object? c) Does the proposal have the potential to cause a 0 0 0 i! physical change that would affect unique ethnic cultural values? d) Will the proposal restrict existing religious or 0 0 0 1<1 sacred uses within the potential impact area? e) Is the area identified on the City's General Plan 0 0 0 " EIR as an area of high potential for archeological resources? Comments: The Conservation and Open Space Element ofthe General Plan does not identify the project site or surrounding vicinity as an area of potential cultural resources. There are no known cultural resources in the project area and no significant impacts would result. Mitigation: No mitigation measures are required, XVI. PALEONTOLOGICAL RESOURCES. Will the 0 0 0 1<1 11 4/11/0 I Potentially Potentially Significant Less thaD Significant Unless Signiftcant N. Impact Mitigated Impact Impact proposal result in the alteration of or the destruction of paleontological resources? Comments: The proposed project could result in significant paleontological impacts because an eight-foot cut slope in the southwest corner of the site would be required to create level building pads along the southern property boundary (see Section III above), The site is underlain by fill soils and slopewash to a maximum depth of four feet over sandstone of the Bay Point formation and "unnamed marine sandstone (terraces),"), The Bay Point Formation and "unnamed marine terrace deposits" have been found to contain a diverse and well-preserved assemblage of marine invertebrate fossils and rare vertebrate fossils and are assigned a high resource sensitivity ("Paleontological Resources, County of San Diego, (Deméré, Thomas A" and Walsh, Stephen L, Department of Paleontology, San Diego Natural History Museum, /993), During construction of the project, the project will be subject to mitigation measures outlined below in Section XIX, Mitigation: Mitigation measures listed in Section XIX would reduce impacts to a less than significant level. XVII. RECREATION. Would the proposal: a) Increase the demand for neighborhood or 0 0 0 ~ regional parks or other recreational facilities? b) Affect existing recreational opportunities? 0 0 0 ~ c) Interfere with recreation parks & recreation 0 0 0 ~ plans or programs? Comments: The 9-unit residential project is expected to have 27 residents. Park land requirements for this population would be Q,Q8-acre, Park fees would be paid as required by City Ordinance. The project is consistent with the City's General Plan Parks and Recreation Element. No significant recreational impacts would result rrom the project. Mitigation: No mitigation measures are required, XVIII. MANDA TORY FINDINGS OF SIGNIFICANCE: See Negative Declaration for mandatory findings of significance, If an EIR is needed, this section should be completed, a) Does the project have the potential to degrade 0 0 0 ~ 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 or California history or prehistory? Comments: The vacant site is located in an urbanized area and was previously used as a horse pasture and for hay raising, No sensitive plant or animal resources or historicallarchaeological resources are present. 12 4/11/0 I PotentlaUy PotentiaUy Significant Less than Signüacant Unless Significant No Impact Mitigated Impact Impact Mitigation: No mitigation measures are required, b) Does the project have the potential to achieve 0 0 0 r;¡ short-term, to the disadvantage of long-term, environmental goals? Comments: Constructing a single-family residential project on the site would not affect long-term environmental goals of the City ofChula Vista in that the project site is not identified for preservation in the City's recently adopted Draft Multiple Species Conservation Program Subarea Plan and the project is consistent with the City's General Plan, Mitigation: No mitigation measures are required, c) Does the project have impacts that are 0 0 0 r;¡ individually limited, but cumulatively considerable? ("Cumulatively considerable" means that the incremental effects of a project are considerable when viewed in connection with the effects of past projects, other current projects, and the effects of probable future projects,) Comments: The project site is in a fully developed urbanized area and development of the site would not result in cumulative environmental effects, Mitigation: No mitigation measures are required, d) Does the project have environmental effects that 0 0 0 r;¡ will cause substantial adverse effects on human beings, either directly or indirectly? Comments: No adverse effects on human beings are anticipated from developing the site as a residential project. Mitigation: No mitigation measures are required, XIX. PROJECT REVISIONS OR MITIGATION MEASURES: The following project revisions or mitigation measures have been incorporated into the project and will be implemented during the design, construction and operation of the project: AIR QUALITY Construction Related Impacts L All unpaved construction areas shall be sprinkled with water or other acceptable dust control agents during dust-generating activities to reduce dust emissions, Additional watering or dust control agents shall be applied during dry weather or windy days until dust emissions are not visible, 2, Trucks hauling dirt and debris shall be properly covered to reduce windblown dust and spills, 13 4111/0 I 3, A 20-mile-per-hour speed limit on unpaved surfaces in connection with the project shall be enforced, 4, On dry days, dirt and debris spilled onto paved surfaces shall be swept up immediately to reduce re- suspension of particulate matter caused by vehicle movement. Approach routes to construction sites shall be cleaned daily of construction-related dirt in dry weather. 5, On-site stockpiles of excavated material shall be covered or watered, 6, Disturbed areas shall be hydroseeded, landscaped, or developed as quickly as possible and as directed by the City to reduce dust generation, 7, Heavy-duty construction equipment with modified combustion/fuel injection systems for emissions control shall be utilized during grading and construction activities, Catalytic reduction for gasoline- powered equipment shall be used, Also, construction equipment shall be equipped with prechamber diesel engines (or equivalent) together with proper maintenance and operation to reduce emissions of nitrogen oxide, to the extent available and feasible, GEOPHYSICAL Construction Related Impacts 1. Temporary desilting and erosion control devices shall be installed as specified on the Tentative Map, These devices include desilting basins, berms, hay bales, silt fences, dikes, and shoring, Protective devices shall be provided at every storm drain inlet to prevent sediment from entering the storm drain system, 2, Additional erosion control measures will be installed as required by the City Engineer due to uncompleted grading operations or unforeseen circumstances that may arise. PALEONTOLOGICAL RESOURCES Construction Related Impacts 1. A qualified a paleontologist will be retained to implement a paleontological monitoring and recovery program as a condition of the project construction contract, A qualified paleontologist is defined as an individual with and MS or Ph,D, in paleontology or geology that is a recognized expert in the identification and recovery of fossil materials, 2, The qualified paleontologist will attend the project pre-construction meeting to discuss project-grading plans with the project contractor(s), If the qualified paleontologist determines that proposed excavation/grading will likely cut into undisturbed portions of the Bay Point formation, then monitoring will be conducted as outlined below, 3, The project paleontologist or a paleontological monitor will be on-site during original cutting of the above noted geologic units, A paleontological monitor is defined as an individual who has experience in collection and salvage of fossil materials, and who is working under the direction of a qualified paleontologist. Monitoring of the noted geologic units will be at least half time at the beginning of excavation, and will be either increased or decreased depending on initial results (per direction by the project paleontologist), 4, In the event that well-preserved fossils are discovered, the project paleontologist will have the authority 14 4/11/01 to temporarily halt or redirect construction activities in the discovery area to allow recovery in a timely manner (typically on the order of I hour to 2 days), All collected fossil remains will be cleaned, sorted and catalogued, and deposited in an appropriated scientific institution such as the San Diego Museum of Natural History, 5, A report (with a map showing fossil site locations) summarizing the result, analyses and conclusions of the above described monitoring/recovery program will be submitted to the City ofChula Vista Planning Department within three months of tenninating monitoring activities, 15 4/11/0 I XX. AGREEMENT TO IMPLEMENT MITIGATION MEASURES By signing the line(s) provided below, the Applicant(s) and/or Operator(s) stipulate that they have each read, understood and have their respective company's authority to and do agree to the mitigation measures contained herein, and will implement same to the satisfaction of the Environmental Review Coordinator. Failure to sign the line(s) provided below prior to posting of this [Mitigated] Negative Declaration with the County Clerk shall indicate the Applicants' and/or Operator's desire that the Project be held in abeyance without approval and that Applicant(s) and/or Operato,r(s) shall apply for an Environmental Impact Report, " ß~~ Printed Name and Title of Authorized Representative of [Property Owner's Name] .DB c. D ¡:::'/-"H /.:J/f-../ /' l"'" C <3 I r¿ <:-? /AJ r' /¿ E'S, Signature of Authorized Representative of Date "-I-/=~ =1 [Property Owner's Name] Printed Name and Title of [Operator if different from Property Owner] Signature of Authorized Representative of Date [Operator if different from Property Owner] XXI. ENVIRONMENTAL FACTORS POTENTIALLY AFFECTED: The environmental factors checked below would be potentially affected by this project, involving at least one impact that is a "Potentially Significant Impact" or "Potentially Significant Unless Mitigated," as indicated by the checklist on the following pages, o Land Use and Planning o Transportation/Circulation o Public Services o Population and Housing o Biological Resources o Utilities and Service Systems · Geophysical o Energy and Mineral Resources o Aesthetics o Water o Hazards o Cultural Resources · Air Quality o Noise o Recreation · Paleontology o Mandatory Findings of Significance 16 4/11/01 XXII. DETERMINATION: On the basis of this initial evaluation: I find that the proposed project COULD NOT have a significant effect on the environment, 0 and a NEGATIVE DECLARATION will be prepared, I find that although the proposed project could have a significant effect on the environment, . there will not be a significant effect in this case because the mitigation measures described on an attached sheet have been added to the project. A MITIGATED NEGATIVE DECLARATION will be prepared, I find that the proposed project MAY have a significant effect on the environment, and an 0 ENVIRONMENTAL IMPACT REPORT is required, I find that the proposed project MAY have a significant effect(s) on the environment, but at 0 least one effect: I) has been adequately analyzed in an earlier document pursuant to applicable legal standards, and 2) has been addressed by mitigation measures based on the earlier analysis as described on attached sheets, if the effect is a "potentially significant impacts" or "potentially significant unless mitigated," An ENVIRONMENTAL IMPACT REPORT is required, but it must analyze only the effects that remain to be addressed, I find that although the proposed project could have a significant effect on the environment. there WILL NOT be a significant effect in this case because all potentially significant effects 0 (a) have been analyzed adequately in an earlier EIR pursuant to applicable standards and (b) have been avoided or mitigated pursuant to that earlier EIR, including revisions or mitigation measures that are imposed upon the proposed project. An addendum has been prepared to provide a record of this determination, ~~ Date '-Ijl//ð/ Ignature Marilyn R. F, Ponseggi Environmental Review Coordinator City of Chula Vista 17 4/11/0 I ATTACHMENT "A" MITIGATION MONITORING REPORTING PROGRAM (MMRP) Vista Del Lara Subdivision, IS-0 1-08 This Mitigation Monitoring Program is prepared for the City of Chula Vista in conjunction with the proposed Vista Del Loro Subdivision project (IS~01-08). The proposed project has been evaluated in an Initial StudylMitigated Negative Declaration (IS/MND) prepared in accordance with the California Environmental Quality Act (CEQA) and City/State CEQA guidelines, The legislation requires public agencies to ensure that adequate mitigation measures are implemented and monitored on Mitigated Negative Declarations, such as IS-0I-08, AB 3180 requires monitoring of potentially significant and/or significant environmental impacts, The Mitigation Monitoring Program for this project ensures adequate implementation of mitigation for the following potential impacts(s): I. Air Quality, MONITORING PROGRAM Due to the nature of the environmental issues identified, the Mitigation Compliance Coordinator shall be the Environmental Review Coordinator for the City of Chula Vista. It shall be the responsibility of the applicant to ensure that the conditions of the Mitigation Monitoring Reporting Program are met to the satisfaction of the Environmental Review Coordinator. Evidence in written fonn confinning compliance with the mitigation measures specified in MND/IS-OI-08 shall be provided by the applicant to the Environmental Review Coordinator. The Environmental Review Coordinator will thus provide the ultimate verification that the mitigation measures have been accomplished, Table I, Mitigation Monitoring and Reporting Program, lists the mitigation measures listed in Section E, Mitigation Necessary to Avoid Significant Effects, of the Mitigated Negative Declaration, which will be implemented as part of the project. 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