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HomeMy WebLinkAboutZA 00-012/DR 98-024 2 3 4 5 ZONING ADMINISTRATOR ACTION NO. 00-012 A RESOLUTION OF THE ZONING ADMINISTRATOR OF THE CITY OF TUSTIN, CALIFORNIA CERTIFYING THE FINAL MITIGATED NEGATIVE DECLARATION AS ADEQUATE FOR DESIGN REVIEW 98-024 AND ALL FEASIBLE MITIGATION MEASURES HAVE BEEN INCORPORATED AS REQUIRED BY THE CALIFORNIA ENVIRONMENTAL QUALITY ACT. 6 The Zoning Administrator of the City of Tustin does hereby resolve as follows: 7 8 I. 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 The Zoning Administrator finds and determines as follows: A. B. II. That Design Review 98-024 is considered a "project" pursuant to the terms of the Califomia Environmental Quality Act; and An Initial Study and Mitigated Negative Declaration have been prepared for this project and have been distributed for public review. C. The Zoning Administrator of the City of Tustin has considered evidence presented by the Community Development Department and other interested parties with respect to the subject Mitigated Negative Declaration. The Zoning Administrator has evaluated the Final Mitigated Negative Declaration and determined that with incorporation of the mitigation measures, the project would not have a significant effect on the environment. E. A Final Mitigated Negative Declaration, attached hereto as Exhibit A, has been completed in compliance with CEQA and State guidelines. The Zoning Administrator has received and considered the information contained in the Mitigated Negative Declaration prior to approval of the proposed project, and finds that it adequately discusses the environmental effects of the proposed project. On the basis of the Mitigated Negative Declaration and comments received during the public hearing process, the Zoning Administrator finds that although the proposed project could have impacts, there will not be significant effects because mitigation measures identified in the Final Negative Declaration will be incorporated into the project as conditions of approval in Exhibit A of Zoning Administrator Action 00- 013 and will mitigate any potential significant effects to a point where clearly no significant effect would occur. Zoning Administrator Action 00-012 August 7, 2000 4 In additicn, the Zoning Administrator finds that the project involves no potential for any adverse effect, either individually or cumulatively, on wildlife resources as defined in Section 711.2 of the Fish and Game Code. 2 3 5 6 PASSED AND ADOPTED at a regular meeting of the Zoning Administrator held on the 7th day of August, 2000. 7 13 ~d&:v ELOISE HARRIS Recording Secretary ~~i:--~L ELIZA E A. BIN ACK Zoning Administrator 8 9 10 11 12 14 16 STATE OF CALIFORNIA) COUNTY OF ORANGE ) CITY OF TUSTIN ) 15 17 22 I, Eloise Harris, the undersigned, hereby certify that I am the Recording Secretary of the Zoning Administrator of the City of Tustin, California; that Zoning Administrator Action No. 00-012 was duly passed and adopted at a regular meeting of the Tustin Zoning Administrator, held on the 7'h day of August, 2000. ~~ 18 19 20 21 23 Eloise Harris Recording Secretary 24 25 26 27 28 29 COMMUNITY DEVELOPMENT DEPARTMENT 300 Centennial Way, Tustin, CA 92780 (714) 573-3105 INITIAL STUDY A. BACKGROUND Project Title: Main Street Water Facilities Lead Agency: City of Tustin 300 Centennial Way Tustin, California 92670 Lead Agency Contact Person: Garv Veeh Phone: (714) 573-3030 Project Location: 235 East Main Street Project Sponsor's Name and Address: City of Tustin - Public Works Dept./Water Division 300 Centennial Wav Tustin. CA 92670 (7\4) 573-3030 General Plan Designation: Community Commercial and Public Institution Zoning Designation: Central Commercial and Commercial Project Description: Property acquisition. disinfection facilities. pumping station and new buried reinforced concrete reservoir. Surrounding Uses: North Central Commercial South Retail Commercial East Central Commercial West Retail Commercial Other public agencies whose approval is required: . Orange County Fire Authority o Orange County Health Care Agency . South Coast Air Quality Management District o Other o City ofIrvine o City of Santa Ana o Orange County EMA I EXHIBIT A B. 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" as indicated by the checklist in Section D below: o Land Use and Planning o Population and Housing o Geological Problems o Water o Air Quality o Transportation & Circulation o Biological Resources o Energy and Mineral Resources . Hazards . Noise . Public Services o Utilities and Service Systems o Aesthetics o Cultural Resources o Recreation o Mandatory Findings of Significance C. DETERMINATION: On the basis of this initial evaluation: o I find that the proposed project COULD NOT have a significant effect on the environment, 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 attached sheets have been added to the project. A NEGATIVE DECLARA TlON will be prepared. o I find that the proposed project MAY have a significant effect on the environment, and an ENVIRONMENTAL IMPACT REPORT is required. o I find that the proposed project MA Y have a significant effect(s) on the environment, but at 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 Impact" or "Potentially Significant Unless Mitigated." An ENVIRONMENTAL IMPACT REPORT is required, but it must analyze only the effects that remain to be addressed. o [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 1) have been analyzed adequately in an earlier EIR pursuant to applicable standards, and 2) have been voided or mitigated pursuant to that earlier EIR, including revisions or mitigation measures that are imposed upon the proposed project. o [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 I) have been analyzed adequately in an earlier NEGA TlVE DECLARATION pursuant to applicable standards, and 2) have been avoided ar mitigated pursuant ta that earlier NEGA TlVE DECLARATION, including revisions or mitigation measures that are imposed upon the proposed proj~ //z0a Signature date I Christine A. Shingleton Assistant City Manager Printed Name Title 2 D. ENVIRONMENTAL IMPACTS Potentially 0 Earlier analyses used: Significant Potentially Unless Less than Availablefor review at: City of Tustin Significant Mitigation Significant Impact Incorporated Impact No Impact Community Development Department 1. LAND USE & PLANNING - Would the proposol: 0 0 0 . a) Conflict with general plan designation or zoning? b) Conflict with applicable environmental plans or policies 0 0 0 . adopted by agencies with jurisdiction over the project? 0 0 0 . c) Be incompatible with existing land uses in the vicinity? 0 0 0 . d) Affect agricultural resources or operations? e) Disrupt or divide the physical arrangement of an established community (including a low-income or minority 0 0 0 . community)? 2. PO PULA nON & HOUSING - Would the proposal: a) Cumulatively exceed official regional or local population 0 0 0 . projections? b) Induce substantial growth in an area either directly or indirectly (e.g., through projects in an underdeveloped area 0 0 0 . or extension of major infrastructure)? 0 0 0 . c) Displace existing housing, especially affordable housing? 3. GEOLOGIC PROBLEMS - Would the proposal result in or expose people to potential impacts involving: 0 0 0 . a) Fault rupture? 0 0 . 0 b) Seismic ground shaking? 0 0 . 0 c) Seismic ground failure, including liquefaction? 0 0 0 . d) Seiche, tsunami, or volcanic hazard? 0 0 0 . e) Landslides or mudflows? f) Erosion, changes in topography or unstable soil conditions 0 0 . 0 from excavation, grading, or fill? 0 0 . 0 g) Subsidence of land? 0 0 . 0 h) Expansive soils? 0 0 0 . i) Unique geologic or physical features? 4. WATER - Would the proposal result in: a) Changes in absorption rates, drainage patterns, or the rate 0 0 . 0 and amount of surface runoff? b) Exposure of people or property to water related hazards 0 0 . 0 such as flooding? c) Discharge into surface waters or other alternation of surface water quality (e.g., temperature, dissolved oxygen or 0 0 . 0 turbidity)? d) Changes in the amount of surface water in any water body? 0 0 . 0 e) Changes in currents, or the course or direction of water movements? 0 0 . 0 3 Potentially Significant Potentially Unless Less than Significant Mitigotion Significant Impact Incorporated Impact No Impact t) Change in the quantity of ground waters, either through direct additions or withdrawals, or through interception of an aquifer by cuts or excavations or through substantial loss of groundwater recharge capability? 0 0 . 0 g) Altered direction or rate of flow of groundwater? 0 0 . 0 h) Impacts to groundwater quality? 0 0 . 0 i) Substantial reduction in the amount of groundwater otherwise available for public water supplies? 0 0 . 0 5. AIR QUALITY - Would the proposal: a) Violate any air quality standard or contribute to an existing or projected air quality violation? 0 0 0 . b) Expose sensitive receptors to pollutants? 0 0 0 . c) Alter air movement, moisture, or temperature, or cause any change in climate? 0 0 0 . d) Create objectionable odors? 0 0 0 . 6. TRANSPORTATION & CIRCULATION - Would the proposal result in: aJ Increased vehicle trips or traffic congestion? 0 0 0 . b) Hazards to safety from design features (e.g., sharp curves or dangerous intersections) or incompatible uses (e.g., farm equipment)? 0 0 0 . c) Inadequate emergency access or access to nearby uses? 0 0 0 . d) Insufficient parking capacity onsite or offsite? 0 0 . 0 e) Hazards or barriers for pedestrians or bicyclists? t) Conflicts with adopted policies supporting alternative 0 0 0 . transportation (e.g. bus turnouts, bicycle racks)? g) Rail, waterborne or air traffic impacts? 0 0 0 . 0 0 0 . 7. BIOLOGICAL RESOURCES - Would the proposol result in impacts to: a) Endangered, threatened or rare species or their habitats (including but not limited to plants, fish, insects, animals, and birds)? b) Locally designated species (e.g., heritage trees)? 0 0 0 . c) Locally designated natural communities (e.g., oak forest, 0 0 0 . coastal habitat, etc.)? d) Wetland habitat (e.g., marsh, riparian, and vernal pool)? 0 0 0 . e) Wildlife dispersal or migration corridors? 0 0 0 . 0 0 0 . 8. ENERGY & MINERAL RESOURCES - Would the proposal: a) Conflict with adopted energy conservation plans? 0 0 0 . b) Use nonrenewable resources in a wasteful and inefficient manner? 0 0 0 . c) Result in the loss of availability of a known mineral resource that would be of future value to the region? 0 0 0 . 4 ~otentially _ignificant Patentially Unless Less than Significant Mitigation Significant Impact Incorporated Impact No Impact 9. HAZARDS - Would the proposal involve: a) A risk of accidental explosion or release of hazardous substances (including, but not limited to, oil, pesticides, chemicals, or radiation)? 0 . 0 0 b) Possible interference with emergency response plan or emergency evacuation plan? 0 0 0 . c) The creation of any health hazard or potential health hazard? d) Exposure of people to existing sources of potential health 0 0 0 . hazards? e) Increased fIre hazard in areas with flammable brush, grass, 0 0 0 . or trees? 0 0 0 . 10. NOISE - Would the proposal result in: a) Increases in existing noise levels? b) Exposure of people to severe noise levels? 0 . 0 0 0 0 0 . 11. PUBLIC SERVICES - Would the proposal have an effect upon, or result in a need for neHJ or altered government services in any of the following areas: a) Fire protection? b) Police protection? 0 0 0 . c) Schools? 0 . 0 0 d) Maintenance of public facilities, including roads? 0 0 0 . e) Other government services? 0 0 0 . 0 0 0 . 12. UTILITIES & SERVICE SYSTEMS - Would the proposal result in a needfor new systems or supplies, or substantial alterations to the following utilities: a) Power or natural gas? b) Communications systems? 0 0 0 . c) Local or regional water treatment or distribution facilities? 0 0 0 . d) Sewer or septic tanks? 0 0 0 . e) Stonn water drainage? 0 0 0 . f) Solid waste disposal? 0 0 0 . g) Local or regional water supplies? 0 0 0 . 0 0 0 . 13. AESTHETICS - Would the proposal: a) Affect a scenic vista or scenic highway? 0 0 0 . b) Have a demonstrable negative aesthetic effect? 0 0 0 . c) Create light or glare? 0 0 0 . 5 'otentially uignificant Potentially Unless Less than Significant Mitigation Significant 14. CULTURAL RESOURCES - Would the proposal: Impact Incorporated Impact No Impact a) Disturb paleontological resources? b) Disturb archaeological resources? 0 0 0 . c) Have the potential to cause a physical change which would 0 0 0 . affect unique ethnic cultural values? d) Restrict existing religious or sacred uses within the potential 0 0 0 . impact area? 0 0 0 . 15. RECREA nON - Would the proposal: a) Increase the demand for neighborhood or regional parks or other recreational facilities? b) Affect existing recreational opportunities? 0 0 0 . 0 0 0 . 16. 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? 0 0 0 . b) Does the project have the potential to achieve short-term, to the disadvantage of long-term, environmental goals? 0 0 0 . c) Does the project have impacts that are 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, the effects of other current projects, and the effects of probable future projects). 0 0 0 . d) Does the project have environmental effects which will cause substantial adverse effects on human beings, either directly or indirectly? 0 0 0 . E. EV ALVA nON OF ENVIRONMENTAL IMP ACTS Please refer to Attachment A for an evaluation of the environmental impacts identified in Section D above. 6 ATTACHMENT A DISCUSSION OF ENVIRONMENTAL EVALUATION Main Street Reservoir Project Property Acquisition, Disinfection Facilities, Pumping Station, and New Buried Reinforced Concrete Reservoir (City Project No. 600108) PROJECT DESCRIPTION The proposed project, is generally located within the City of Tustin as shown in Figure I. The project includes property acquisition, demolition of existing structures, disinfection facilities, pumping station, engine generator, 4000 gallon diesel storage tank, chemical storage, operations storage and a new buried concrete reservoir and involves potential work on three (3) nearby sites in the City of Tustin as shown in Figure 2 and 3. The following project component descriptions are broken down by site number and discuss the work being done on each individual site. Site No. I Site No. I is located at the northeast corner of Prospect A venue and Main Street in the City of Tustin. The property is owned by the City of Tustin and is currently being used by the Water Services Division. Existingfacilities on the property include the following: Water Services Division administration building, 180,000 gallon concrete reservoir, underground site piping, wellhead facilities, residence, garage/workshop and a nitrate removal plant. A new 2,200,000 gallon buried reinforced concrete reservoir will be partially constructed on Site No. I (Approximately 2/3 of the reservoir will be in Site No. I and 1/3 of the reservoir will be in Site No.2). The reservoir is located adjacent to Prospect and Third Streets as shown on Figure 3. The reservoir is being constructed to provide additional needed storage in the City's distribution system (the existing reservoir was built in 1925), to permit blending with treated water from the existing nitrate removal plant and to permit other existing reservoirs to be taken out of service for repairs and upgrade. The reservoir is proposed to be buried below ground. The reservoir will be constructed in the northern section of Site No. I as can be seen in Figure 3. It will border Prospect Avenue to the west and an existing convalescent home to the east. A new booster pump station is proposed to be constructed on top of the proposed concrete reservoir. The booster station is proposed for the northern portion of Site No. I. The booster station will be used to distribute the water from the reservoir into the City's water distribution system. A chlorine storage building will be constructed on site No. I as shown in Figure 3. The use of chlorine gas will provide disinfection at the wellhead facilities. Adjacent to the chlorine building, a future fluoride feed and ammonia feed building may be constructed. The architecture for this facility would match the proposed chlorine building. Since the existing buildings at the site will be demolished new facilities will be required to provide chemical storage, operational storage, wet laboratory facilities, tool storage, restrooms and a control room. These facilities will be incorporated into the proposed buildings on the site as shown in Figures 2 and 3. Additional on site facilities such as piping and valving will be constructed to transport the water between the reservoir and the pump station and to the City's existing distribution system. Two asphalt parking lots will also be constructed for use by employees, visitors and the public. Site No.2 Site No.2 is located at the southeast comer of Prospect Avenue and Third Street in the City of Tustin adjacent to Site No.1. The property is currently used as a parking lot for the convalescent home that isjust to the East of the property. If the project is approved, the City of Tustin plans to acquire this property and build the reservoir and then build a parking lot on top of the reservoir for general public parking with exclusive rights to a certain number of parking spaces being assigned to the convalescent home. As discussed in the Site No. I description above, a portion of the proposed 2,200,000 gallon buried reinforced concrete reservoir will be constructed on Site No.2. The northern and western edges of the reservoir will be constructed on the Third Street and Prospect A venue rights-of-way respectively. The western edge of the reservoir will be constructed adjacent to the existing convalescent home. Site No.3 Site No.3 is located just east of Site No. I and borders Main Street to the south. The City intends to acquire the site in conjunction with the project. A potential use for this property is to replace existing wellhead facilities that are currently located on Site No. I. In addition, an emergency generator could be added to the site. In conformance with the California Environmental Quality Act, the purpose of this study is to identify the significant environmental impacts of the project. Phasing At this time, it is anticipated that the work at the Main Street site will occur in multiple phases. The first phase will include the majority of the construction and will consist of the buried reservoir, the pump station, the wellhead facilities, and the parking lot on top of the reservoir, all of which are shown in Figure 4. During Phase II, the existing warehouse and administration buildings which are shown in Figure 4 will be removed, and the public parking lot will be constructed as shown in Figure 3. A final phase may include the construction of the fluoride/ammonia building if regulations are adopted which require their use. 1. LAND USE PLANNING (A-E) No Imoact The present zoning of Sites No. I and 2 is "C2-P (Central commercial)" and the present zoning of Site No.3 is "C I (commercial)". The current General Plan designation for Site No. I is "Public Institutional and the current General Plan designation for Sites No.2 and 3 is "Community Commercial". The present use of Site No. I is for the City's water administration, production, treatment, storage, pumping and other miscellaneous facilities. On Site No. I, the City is proposing to construct a buried concrete reservoir and a booster pumping station which are consistent with the facilities currently on the site. Site No.2 is currently used as a parking lot for the adjacent convalescence home. The City is proposing to construct a buried concrete reservoir on the Site and then construct a parking lot on top of the reservoir. An electrical contracting business is currently located on Site No.3. The City is proposing to construct wellhead facilities on Site No.3 which would be consistent with the adjacent proposed facilities on Sites No. I and 2. Buildings, walls and features on Sites No. I and 2 will be designed to enhance and compliment structures in the Cultural Resources District to the west. The completed site will be screened on the north side along Third Street and on the west side along Prospect with a decorative masonry wall. The wall will be coated with a tan stucco and have a brown brick cap and brown pilasters. Low masonry walls (4') will be located around the public parking at the north west comer of the site. Higher masonry walls (8') will surround the Water Department facilities and will separate the public parking lot from these facilities. The site will be open along Main Street with a bermed planting area screening the parking lot from Main Street. Landscaping and trees will also be used to screen Water Department facilities. Existing street trees along Main Street will be saved along with two specimen trees on site. Around the perimeter of the site and between the public parking lot along Main Street and the Water facilities second story backdrop trees (Gold Medallion) will be used to screen. In addition, total edge screening trees (Italian Cypress) will be used around the existing treatment facilities. Low maintenance shrubs and ground cover will be installed in planting areas located between the sidewalk and the masonry walls along Third and Prospect. Raised planters will be installed to provide landscaping on the reservoir roof parking lot. sources: City of Tustin Public Works Department, Water Services Division City of Tustin Community Development Department City of Tustin General Plan Land Use Map Field Observations Mitigation Monitoring: None Required 2. POPULATION AND HOUSING (A-C) No Impact The proposed water facilities provide improvements in system reliability but do not provide a significant increase in capacity and will therefore not result in any noticeable direct or indirect increase in population or need for additional dwelling units or displace any existing housing. The nature of the facilities will not require any increase in City staff at the site. sources: City of Tustin Housing Element of the General Plan City of Tustin Community Development Department City of Tustin Public Works Department, Water Service Division Mitigation Monitoring: None Required 3. GEOLOGIC PROBLEMS (A.D.E.!) No Impact A review of the proposed project indicates that the facilities would not result in any geologic changes to the existing conditions. Soils reports and grading plans prepared as a part of the project design will address any onsite conditions encountered. According to the General Plan there are no Alquist-Priolo zones on or near the site. The Sites will not be impacted by any landslides, Seiche, Tsunami, volcanic action, erosion, or subsidence since none of these geologic features are present onsite or in the vicinity. (B-C. F-H) Less Than Significant Imoact The Sites are subject to seismic shaking as a result of their proximity to regional fault lines such as the Newport-Inglewood fault. The region is subject to expansive soils and liquefaction due to a high groundwater table in the area. However, common construction practices such as removal and recompaction of the site's soil and remedial grading will mitigate any potential impacts from any expansive soils encountered. The project will require excavations of over twenty feet in depth for the reservoir construction and this excavation will be in close proximity to the existing building on the east side of the site. These excavations will be adequately reinforced with engineered shoring during construction of the reservoir. sources: City of Tustin Public Works Department, Water Service Division City of Tustin Community Development Department Mitigation Monitoring: A detailed soils engineering report and grading plans will be prepared for the project. All excavation and grading activities will comply with all applicable City of Tustin Codes, the Uniform Building Code and the Standard Specifications for Public Works Construction. Pre-existing conditions at the convalescent home will be documented through photographs and video tapes by City staff to ensure that any damage caused by the construction is repaired to the pre-existing condition or better. This will be monitored by the Construction Manager. 4. WATER (A-I) Less Than Significant The proposed project will not result in any appreciable impacts to water movements, alterations to flow of flood waters, ground waters or exposure of people or property to water related hazards. The increase in impervious surface area will create a minor increase in runoff and reduced absorption. The equipping and operation of the new domestic water well is the replacement of an existing well at the Main Street site and results in no net change in groundwater impacts. sources: City of Tustin Public Works Department, Water Service Division Mitigation Monitoring: None Required 5. AIR QUALITY (A-D) No Impact The proposed project will not result in any permanent degradation of existing air quality based upon the South Coast Air Quality Management District guidelines for preparation of Environmental Impact Reports. A generator powered by diesel fuel will be a part of the project to provide standby power. The generator will only operate during emergency situations. Construction at the Sites however will temporarily generate natural particulate matter in the form of dust from grading operations and other activities. Construction activity dust generation shall be reduced through regular watering as required by the SCAQMD Rule 403. sources: SCAQMD Standards for preparing EIR documents. Mitigation Monitoring: The emergency generator shall meet all required SCAQMD requirements for standby power. The City shall incorporate regular watering as required by SCAQMD Rule 403 into construction requirements. 6. TRANSPORTATION & CIRCULATION (A-Ct (E-G) No Impact The project will not result in any impacts (except for the temporary loss of parking stalls) on vehicular movement, existing transportation systems, changes in waterborne rail or air traffic. (D) Less than Significant Impact During the 18 month construction term, there will be a temporary loss of 11 parking stalls at the convalescent home and there may be the temporary loss of parking on one block of Third Street should it be closed for construction activities. These temporary losses can be alleviated by the utilization of on-street parking. The City Traffic Engineer has concluded that ample parking is available on-street in the vicinity. The project involves the replacement of an existing parking lot on top of the new reservoir. Spaces in the new lot will be reserved for the convalescent home. In addition, this project will provide additional public parking for the Old Town Area at the comer of Prospect Avenue and Main Street. The proposed reservoir, pump station and associated facilities will not increase the demand for parking over that of the existing facilities. Parking for employees will be accommodated by on-site parking as generally shown in Figure 3 in Phase I and Figure 4 for Phase II. Access to the water facilities for both employees and deliveries will be via gated entrances on Main Street and Prospect Avenue. Construction of the reservoir may require the temporary closure of Third Street from Prospect to Preble. The traffic volumes on this street, as shown on recent traffic counts, indicate that this street has very low volumes of traffic. The vehicular traffic during the morning peak ranged from 19 to 22 vehicles an hour in each direction. Evening peak ranged from 26 to 33 vehicles per hour in each direction. ADTs ranged from 309 to 359 in each direction. In the event of a need for a temporary closure, traffic will be rerouted to streets in the vicinity with adequate capacity. This closure will cause a less than significant impact. sources: City of Tustin Circulation Element of the General Plan City of Tustin Public Works Department, Traffic Data Services, Traffic Counts, dated 8/5/97 through 8/9/97 City of Tustin, Traffic Engineer Mitigation Monitoring: During construction, the City shall provide on-street parking and shall provide adequate signing for any alternate routes during temporary road closures. 7. BIOLOGICAL RESOURCES (A-E) No Impact There will be no significant change in the diversity or number of species of any plants as the project will be designed for replacement of any plant life removed for construction purposes. The Sites are free from any significant population of animals, fish or other wildlife. No significant plant life will be affected. sources: City of Tustin Public Works Department, Water Service Division Field Observations Mitigation Monitoring: None Required 8. ENERGY & MINERAL RESOURCES (A-C) No Impact The proposed project will include installation of pumping equipment, electrical motors and other electrical equipment. This proposed equipment will use energy in the form of electricity. It will replace existing pumping equipment and provide some additional capacity during peak demand periods. Thereforesome additional energy will be used at the site. However, this project increases the amount of local groundwater the City will produce. The local groundwater replaces imported water purchased from Metropolitan Water District of Southern California (MWD). . Sources of supply for MWD water are located hundreds of miles away at either the Colorado River or Northern California. Therefore, since the energy used at this site replaces other energy uses the net effect is that the proposed project will not result in a significant increased usage of energy or natural resources. sources: City of Tustin Public Works Department, Water Service Division Mitigation Monitoring: Provide energy efficient equipment for the project and work with Southern California Edison to investigate energy saving opportunities in conjunction with design offacilities for the project. 9. HAZARDS ( A) Potentially Significant Unless Mitigation Incomorated The proposed project will include a buried storage tank for diesel fuel located adjacent to the well facility building. The maximum capacity of the storage tank will be 4,000 gallons. The design of the storage tank will conform to Articles 52 and 79 of the current Uniform Fire Code. In addition, the storage tank will be designed in accord with Title 23 (Division 3, Chapter 16) of the California Code of Regulations (CCR) which specifies a double contained tank and piping. The chlorination building is located as shown on Figures 3 and 4. The use of chlorine gas is proposed to provide disinfection at the wellhead facilities. This is consistent with the City's other well sites. If this site is selected as the central storage location, the chlorine gas (24- 150lb cylinders) will be stored within one room of the proposed chlorine building, see Figure 4. The room will be isolated (no open access, louvers, etc.) and will be designed to contain any leaks. A chlorine scrubber will be constructed adjacent to the storage room to neutralize and contain the chlorine gas in the unlikely event of a leak. The proposed chlorine facilities will not result in the creation of any health hazard or potential health hazard or expose people to any health hazard. Risk of hazard from a chlorine leak contained in an air tight building with a scrubber are very minor. The radius for such a leak would be contained within the confines of the project site. Layout of the Main Street facilities will include space for the potential future addition of a fluoride feed and ammonia feed facility. The facility would be located adjacent to the chlorine building as shown on Figure 4. If fluoride and ammonia facility is constructed, the volume of chemicals stored would be as follows: 550 gallons of25% concentrate Hydorflyuosilic Acid and 250 gallons of 30% Aqua Ammonia. In the areas where these aqueous (liquid) chemicals will be delivered, the site drainage will be constructed to contain any potential spills. This will be accomplished by installing isolation valves on the drain lines leaving that area. The water reservoir itself will be constructed so that it does not pose a hazard. The reservoir will be designed to withstand the maximum credible earthquake for the site. In addition, special safety, access, and security features will be designed into the project. (B-E) No Imoact The proposed project will not interfere with any emergency response or evacuation plans nor will it increase fire or public health hazards. sources: City of Tustin Public Works Department, Water Service Division Orange County Fire Authority County of Orange Environmental Health Division Mitigation Monitoring: Prior to installation of the below ground diesel tank, approval will be required from the County of Orange Environmental Health Division and the Orange County Fire Authority (OCF A). As part of the OCF A approval, a hazardous material and inventory disclosure form will be prepared which will include an emergency response/evacuation plan for the facility. Per Title 23 of the CCR, the below ground tank will have monitoring wells between the two walls to monitor any leakage. During design, containment facilities and a chlorine scrubbing unit will be incorporated into the facility design. The actual reservoir will be designed to meet the latest seismic and safety regulations. 10. NOISE ( A) Potentiallv Si~nificant Unless Mitigation Incoroorated The pumping facilities and engine generator proposed for the project, which may operate at any time during the day, tend to generate high frequency noise at levels up to 90 dB during operation. In order to mitigate this noise, the facilities will be housed in buildings which have been sited as far as possible away from the adjacent convalescent home. Insulation and other mitigation features will be included in the design of the buildings to ensure that any noise coming from the facility is less than 55 dB at the property line which meets the City noise ordinance. Deliveries to the site of equipment or chemicals will be scheduled during normal City working hours Monday through Friday and will not impose significant impacts to noise. (B) No Imoact Noise generated during the construction of this project is temporary and will occur during the proposed 18 month construction period. Operation of construction equipment will be limited to the routine work hours of7:00 a.m. to 6:00 p.m. Monday through Friday. Nighttime construction will not be permitted except in the case of an extreme emergency. The noise level of the construction equipment is anticipated to be in the range of 70 to 90 dB from 50 feet away depending on the type of equipment being used. Construction noise is exempt from City noise ordinance during working hours. sources: City of Tustin Public Works Department, Water Service Division City of Tustin Community Development Department, Planning Division City of Tustin General Plan Mitigation Monitoring: The Contractor will be required to meet all City Noise requirements during construction. The construction manager will ensure that the site complies with all noise-related requirements during construction. All buildings will be designed so that the noise emitted will meet all City Noise ordinances. Prior to final acceptance of any buildings or equipment, noise will be measured at the property lines to the northeast and east to insure compliance. The City's code enforcement officials will be responsible for monitoring compliance in response to complaints after completion of the project. 11. PUBLIC SERVICES (m Potentiallv Si~nificant Unless Mitigation Incorporated There are no impacts on police protection since the project will incorporate security fences, gates and approved site lighting into its design. In addition, all buildings will be designed with intrusion alarms. (A.C-E) No Imoact The new reservoir, well and pumping facilities will have to be maintained to the same level as other City water facilities. The Public WorkslWater Service Division will be responsible for this maintenance. Typical annual maintained costs for this type offacility are 400 to 600 maintenance hours per year. The maintenance costs will be recovered from the City water rates and from the addition of newer and more efficient equipment. The maintenance of the new facilities will be performed by existing City staff and it is not anticipated that the City will need to hire new employees for the maintenance of this facility. sources: City of Tustin Public Works Department, Water Service Division Mitigation Monitoring: None Required 12. UTILITIES & SERVICE SYSTEMS (A-G) No Imoact The proposed project will not result in a need for new systems or substantial alterations to the following utilities; power, natural gas, communications, water, sewer, septic tanks, storm water drainage and solid waste disposal. The proposed project will create minor amounts of additional waste requiring disposal as a result of demolition of existing structures on the site. The Contractor will be required to coordinate the removal, from the site, of all structures, paving, foundations, vegetation and any associated debris from the site to a legal refuse disposal site. Those materials that can be salvaged may be retained or sold by the Contractor. All remaining materials for disposal must be taken to Sunset Material Recovery Facility at 16182 Construction Circle West, in Irvine for recycling and diversion of waste from a landfill. The Contractor will level the remaining earth following debris removal and provide for hand labor to remove remaining debris following leveling of the earth to the satisfaction of the Engineer. sources: City of Tustin Public Works Department, Water Service Division City of Tustin Source Reduction and Recycling Element Mitigation Monitoring: The Contractor will be required to submit a report to the Tustin Public Works Department detailing the type and volumes (in tons) of waste generated at the site, type and quantity salvaged by the Contractor, and quantity hauled to Sunset Material Recovery Facility. This report will be required prior to final payment for all work performed in accordance with the contract. 13. AESTHETICS (A-C) No Imoact The architectural concept for the proposed buildings will be treated to enhance compatibility with Cultural Resources District to the west. Figures 3 and 4 depict the architectural site plan, landscaping and screen walls. Within the parking lot on top of the reservoir, portable planters will be used to meet City landscape requirements. In addition, other portions of the site will be landscaped with shrubs, groundcover and trees to make the site aesthetically pleasing. Some of the existing trees on the site will remain to act as a noise buffer. The olive tree will be removed. Basic design treatments such as perimeter screening, landscaping, building design and lighting are shown in Figures 3 and 4. This project will not produce any new light or glare outside of the site. All lighting on the site will be designed to shine on the site only. In addition, the proposed project will not result in the obstruction of any scenic vista or view open to the public. Sources: City of Tustin Public Works Department, Water Services Division Mitigation Monitoring: None Required 14. CULTURAL RESOURCES (A-Oj No Imoact The proposed site is located within the original City limits (1927) but is outside of the Cultural Resources District. The Cultural Resources District begins immediately west of the site on the opposite side of Prospect Avenue. All improvements for this project however, will be designed to enhance and complement other cultural resources in the District. sources: City of Tustin Public Works Department, Water Service Division City of Tustin Community Development Department, Planning Division City of Tustin General Plan Mitigation Monitoring: None Required 15. RECREATION (A-B) No Impact The proposed project will not result in any impact upon the quality or quantity of existing recreational opportunities. sources: City of Tustin Public Works Department, Water Service Division Mitigation Monitoring: None Required 16. MANDATORY FINDINGS OF SIGNIFICANCE (A-D) No Impact The proposed project will not result in any significant adverse impacts on the environment. sources: The determination that this project will not result in any significant adverse impacts on the environment was based upon the findings described above in items 1 through 15.