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HomeMy WebLinkAbout1975-12-02; City Council; 3527; Green Valley Knolls subdivision mapV' CITY OF CARLSBAD AS END A BI;tL NQ. DATE: Initial: DEPARTMENT:PLANNING City Atty City Mgr. SUBJECT: Request for Tentative Subdivision Map (CT 75-7) and Specific Plan (SP-171) APPLICANT; Green Valley Knolls (La Costa Land Company) Statement of the Matter A Specific Plan and Tentative Map was originally approved on this property in October, 1973 (Spanish Village) for 1026 condominium units. The present request is a complete revision of the original request providing for 220 single family lots, 5 condominium lots and two Open Space lots. The Planning Commission at its regularly scheduled meeting of November 12, 1975 recommended approval with conditions. Inasmuch as Open Space maintenance is a substantial question, the Planning Commission is re- questing the City to form an Assessment District for the maintenance of Open Space, recreation and slope landscaping. The Planning Commission and the Applicant both feel that private maintenance programs within each individual development will not be effective in maintaining Open Space In a uniform manner throughout the La Costa development in the long term. EXHIBITS: Planning Commission Resolution 1203 Planning Commission Resolution 1204 Planning Department Staff Report dated Supplemental Draft - EIR Supplement to RECOMMENDATION; November EIR 167, 12, 1975 dated 9-4-75 If the City Council concurs with the findings and recommendation of the Planning Commission as outlined in Planning Commission Resolutions 1203 and 1204, it is recommended that the City Council instruct the City Attor- ney to prepare tfle necessary documents. Council action 12-2-75 Following the public hearing the City Attorney was instructed to prepare the necessary documents for approval of the specific plan and tentative map for C/T 75-7 subject to the conditions outlined in Planning Commission resolutions #1203 and #1204. 1 2 3 4 5 APPLICANT: LA COSTA LAND CO. 6" 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 PLANNING COMMISSION RESOLUTION NO. 1203 RESOLUTION OF THE PLANNING COMMISSION OF THE CITY OF CARLSBAD, CALIFORNIA, RECOMMENDING APPROVAL OF A SPECIFIC PLAN TO ALLOW A SUBDIVISION CONSISTING OF 220 SINGLE FAMILY LOTS, 5 CONDOMINIUM LOTS AND 2 OPEN SPACE LOTS EAST OF EL CAMINO REAL AND SOUTH OF LA COSTA AVENUE. CASE NO. SP-171 WHEREAS, a verified application for a certain property, to wit: Portion of Section 35 and 36, Township 12 South, Range 4 West, and Portion of Section 2, Township 13 South, Range 4 West, SMB, City of Carlsbad, County of San Diego, State of California has been filed with the City of Carlsbad and referred to the Planning Commission; and WHEREAS, said verified application constitutes a request as provided by Title 21 of the "Carlsbad Municipal Code"; and WHEREAS, the public hearing was held at the time and in the place specified in said notice on October 15, 1975 and subsequently continued to the November 12, 1975 Planning Commission meeting; and WHEREAS, the applicant has complied with the Public Facility Policy of the City of Carlsbad and has provided the necessary information which insures Public Facilities will be available concurrent with need; and WHEREAS, the subject application has complied with the requirements of the City of Carlsbad "Environmental Protection Ordinance of 1972" in that an Environmental Impact Report (EIR-167) for a prior project on the site was certified by City Council and a supplement covering the proposed project pre- pared. The adverse impacts identified in said Environmental Impact Report will be mitigated either by conditions of this approval, ongoing local, state and Federal programs, or have been found to be outweighed by the economic and social benefits of the project. WHEREAS, at said Public Hearing, upon hearing and considering the testimony and arguments, if any, of all persons who desired to be heard, said Commission considered all factors relating to the Specific Plan and found the following facts and reasons to exist: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 (1) The proposed Specific Plan is consistent with the General Plan because: a) The Land Use and density of the project (2.8 dwellings per acre overall) conform to General Plan designations (medium-high residential density, 10-20 dwellings per acre). b) Open Space, Parks, Circulation and Noise Attenuation are provided for in a manner consistent with applicable Elements of the General Plan. (2) The proposed Specific Plan conforms to applicable City policies and ordinances dealing with public facilities because: a) Provisions of Public Facilities has been assured, meeting minimum City standards, concurrent with need. NOW, THEREFORE, BE IT RESOLVED by the Planning Commission of the City of Carlsbad as follows: A) That the above recitations are true and correct. B) That a Specific Plan is approved to allow a subdivision consisting of 220 single family lots, 5 condominium lots and 2 open space lots east of El Camino Real and south of La Costa Avenue, and is subject j to the following conditions: (1) Specific Plan 119 adopted by City Council October 16, 1973, Resolution 3250 shall be rescinded. (2) The approval is granted for the land described in the application and any attachments thereto, and as shown on the Plot Plan submitted labeled Exhibit B, dated October 24, 1975. The location of all roadways, parking areas, landscaping, and other facilities or features shall be located substantially as shown on the plot plan Iabe1ed Exhibit B, except or unless indicated otherwise herein. (3) All development condiitons of the R-l Zone shall apply to lots 1-220 except as otherwise noted herein. (4) All development conditions of the RD-M Zone shall apply to lots 221-225 except as otherwise noted herein. (5) To allow for proper maintenance of slope areas, no fences shall be constructed across the slopes with toe-of-slopes adjacent to public streets as shown in Exhibit B, dated October 24, 1975. (6) Concurrent with final map recordation, an open space easement shall be granted to the City of Carlsbad over lot 226 and a por- tion of lots 223 and 227 as shown in Exhibit B, dated October 24, 1975. At the same time 20 foot open space easements over portions of lots 16, 34, 172 and 186 shall be granted to the City of Carlsbad as shown in said Exhibit, or shall be included in lots 226 and 227 if approved by the Planning Director. (7) A detailed landscape and automated irrigation plan shall be submitted to the Parks and Recreation Director for his approval prior to issuance of grading permits. Said plan shall include all slopes with toes-of-slope adjacent to public rights-of-2ay, and lots 226 and 227. -2- 1 (8) Prior to the acceptance of subdivision improvements by the City, all landscaping and irrigation facilities included in the land- 2 scape and irrigation facilities plan described in the above condition shall be installed. The applicant shall maintain 3 said landscaping until such time as permanent maintenance is established. 4 (9) Prior to any occupancy of any portion of the Specific Plan area 5 the applicant shall file with the Clerk of the City of Carlsbad a petition for the formation of an Open Space Maintenance Distric 6 as provided for in Section 50590 of the California State Government Code. The applicant shall maintain all landscaping installed in conformance with this plan until such time as an Open Space Maintenance District is established and accepts 8 maintenance responsibilities as prescribed in the Open Space Maintenance Act, or until maintenance responsibility is accepted 9 by another entity acceptable to the City. Should the City Council not approve such a Maintenance District, the applicant 10 shall form a Homeowner's Association. The CC&R's for the Associaiton shall contain provisions guaranteeing maintenance 11 of said landscaping and shall be reviewed by the Planning Directoi 12 (10) Adopted City policies and ordinances pertaining to the creation and improvement of panhandle lots shall be adhered to. 13 (11) Prior to the issuance of building permits on lots 223, 224, 225, a study of the noise levels on said lots shall be made by an acoustical engineer experienced in noise attenuation. Said study 15 shall determine if attenuation measures are necessary to bring noise levels with 65 dB(A) outdoors and 45 dB(A) indoors. Said study shall recommend such attenuation measures as deemed necessary and approved by the Planning Director. Said measures shall be incorporated in the site design and building plans for said lots.18 (12) Dwellings located on lots 5 through 26 and 42 through 81 of Exhibit B, dated October 24, 1975, shall be built with fire- retardant roofs approved by the fire marshall. (13) Lot 221 shall be reserved for potential use as a private park21 site. 22 PASSED, APPROVED AND ADOPTED t a reaular meeting of the City of Carlsbad 23 Planning Commission held on November 12, 1975, by the following vote, to wit: AYES: Commissioners Jose, L'Heureux, Larson, Packard 25 NOES: None 26 ABSENT: Commissions Watson, Dominquez, Fikes 27 28 E.H. Jose Jr., Chairman 29 ATTEST: 30 31 32 Donald A. AgatepVSecretaVy \~ -3- 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 PLANNING COMMISSION RESOLUTION NO. 1204 RESOLUTION OF THE PLANNING COMMISSION OF THE CITY OF CARLSBAD, CALIFORNIA, RECOMMENDING APPROVAL OF A TENTATIVE MAP REQUEST FOR A SUBDIVISION CONSISTING OF 220 SINGLE FAMILY LOTS, 5 CONDOMINIUM LOTS AND 2 OPEN SPACE LOTS EAST OF EL CAMINO REAL AND SOUTH OF LA COSTA AVENUE. CASE NO. CT-75-7 APPLICANT: LA COSTA LAND CO. WHEREAS, a verified application for a certain property, to wit: Portion of Section 35 and 36, Township 12 South, Range 4 West and Portion of Section 2, Township 13 South, Range 4 West, SMB, City of Carlsbad, County of San Diego, State of California has been filed with the City of Carlsbad and Referred to the Planning Commission; and WHEREAS, the Public Hearing was held at the time and in the place specified in said notice on October 14, 1975 and subsequently continued to the November 12, 1975 Planning Commission meeting; and WHEREAS, said verified application constitutes a request as provided by the "Carlsbad Municipal Code" ;or/;the Subdivision Map Act; and WHEREAS, the applicant has complied with the Public Facility Policy of the City of Carlsbad and has provided the necessary information which insures Public Facilities will be available concurrent with need; and WHEREAS, the subject application has complied with the requirements of the City of Carlsbad "Environmental Protection Ordinance of 1972" in that an Environmental Impact eport (EIR-167) for a prior project on the site was certified by City Council and a supplement covering the proposed project pre- pared. The adverse impacts identified in said Environmental Impact Report will be mitigated either by conditions of this approval, ongoing local, state and Federal programs, or have bgen found to be outweighed by the economic and social benefits of the project. WHEREAS, at said hearing a staff report was presented and all persons desiring to speak on the subject request were heard. At the conclusion of said hearing, after considering all the evidence presented, the Planning Commission made certain findings and reached a decision on the request as herein- after set forth. W NOW, THEREFORE, BE IT RESOLVED by the Planning Commission of the City of Carlsbad as follows: 3 A) That the above recitations are true and correct. 4 B) That the Planning Commission makes the following findings of fact: 5 1) The proposed map, its design and improvements, is consistent with the General Plan because: 6 a) The land use and density of the project (2.8 dwelling per 7 acre overall) conform to General Plan designations (medium- high residential density, 10-20 dwellings per acre); 8 b) Open Space, Parks, Circulation and Noise Attenuation are 9 provided for in a manner consistent with applicable Elements of the General Plan. 10 2) The proposed subdivision map, its design and improvements, is 11 ; consistent with the applicable Specific Plan because: 12 >a) The lots so created are consistent with the residential uses designated by the Specific Plan.13 C) The in view of the findings heretofore made and considering the applicable law, the decision of the Planning Commission is to approve CT 75-7, subject to the following conditions:15 1) CT 73-20, adopted by City Council on October 16, 1973, Resolution 16 I 3251, shall be rescinded. 17 2) The final map shall be submitted for approval within 18 months from the final action by the City Council on the Tentative 18 Subdivision Map. The Final Map shall be in substantial confor- mance with the tentative subdivision map known as Exhibit B, 19 dated October 24, 1975. 20 3) The development of the property described herein shall be subject to the restrictions and limitations set forth herein which are in addition to all the requirements, limitations, and restrictions of all municipal ordinances and State and Federal statutes now in force for the purpose of preserving the residential character- istics of adjacent properties.23 4) In order to provide for reasonable fire protection during the 24 construction period, the subdivider shall maintain passable vehicular access to all buildings and adequate fire hydrants 25 with required fire flows shall be installed as recommended by the Fire Department. 26 | 5) Ornamental street lighting shall be provided for as required by 27 Municipal Ordinance. The developer shall deposit cash in the amount necessary to energize said street lights for an eighteen28 | month period after construction to permit the incorporation of the subdivision into a maintenance district.29 ( 6) All land and/or easements required shall be granted to the City of30 Carlsbad withoug cost to the City, and free of all liens and encumbrances. No easements shall be recorded prior to recordation of the final map unless approved by the City Engineer. 32 -2- /•>,w 1 2 3 4 5., Safety Element of the General Plan. 6 8) The cross gutter at the intersection of "A" Street and Levante 7 8 9,, collector street. 10 10) Dedication of streets shall include a waiver of direct access 11 12,, not required. 13 11) Improvement of the intersection of Levante Street and Anillo 14 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 movements from Levante Street to Anillo Way. 15 12) Park-in-lieu fees shall be paid to the City prior to City Council 7) The improvement and grading plans shall include a report of a geological investigation and a complete grading plan of the entire site, when required by the City Engineer. The report and plan shall be prepared by Civil Engineers licensed by the State of California, and experienced in erosion control, who shall be acceptable to the City Engineer. They shall certify that they have investigated the site and prepared data with full con- sideration of the consequences to the included and neighboring properties and in conformance with the Geologic and Seismic Street is not approved as shown but shall be redesigned and approved by the City Engineer at such time as improvement plans are presented for review and approval. 9) "A" Street shall be dedicated and improved as a residential rights from El Camino Real, Levante Street and Anillo Way shown on the final map as abutting thereon, except that a waiver of access rights to Levante Street from lots 82-88 is Way shall include a raised island to channelize right turn approval of the final map. 13) Concurrent with final map recordation an open space easement shall be granted to the City of Carlsbad over lots 226 and a portion of lots 223 and 227 as shown in Exhibit B, dated October 24, 1975. At the same time 20 foot open space easements over portions of lots 16, 34, 172 and 186 shall be granted to the City of Carlsbad as shown in said Exhibit, or shall be included in lots 226 and 227 if approved by the Planning Director 14) A detailed landscape and automated irrigation plan shall be submitted to the Parks and Recreation Director for his approval prior to issuance of grading permits. Said plan shall include all slopes with toes-of-slope adjacent to public rights-of-way and lots 226 and 227. 15) Prior to the acceptance of subdivision improvements by the City, all landscaping and irrigation facilities included in the land- scape and irrigation plan described in the above condition shall be installed. The applicant shall maintain said landscaping until such time as permanent maintenance is established. 16) Prior to any occupancy of any portion of the Specific Plan area the applicant shall file with the Clerk of the City of Carlsbad a petition for thr formation of an Open Space Maintenance District as provided for in Section 50590 of the California State Government Code. The applicant shall maintain all landscaping installed in conformance with this plan until such time as an j Open Space Maintenance District is established and accepts maintenance responsibilities as prescribed in the Open Space Maintenance Act, or until maintenance responsibility is accepted by another entity acceptable to the City. Should the City Council not approve such a Maintenance District, the applicant shall form ' .. -3- , . . . . 7 1 a Homeowner's Associaiton, The CC&R-s for the Association shall contain provisions guaranteeing maintenance of said landscaping 2 and shall be reviewed by the Planning Director. 3 17) Prior to the issuance of building permits on lots 223, 224, 225, a study of the noise levels of said lots shall be made by an 4 acoustical engineer experienced in noise attenuation. Said study shall determine if attenuation measures are necessary 5 to bring noise levels within 65 dB(A) outdoors and 45 dB(A) indoors. Said study shall recommend such attenuation measures 6 as deemed necessary and approved by the Planning Director. Said measures shall be incorporated in the site design and building 7 plans for said lots. 8 18) The water main serving "J" Street, as shown on Exhibit A, dated September 5, 1975, shall be looped unless rejected by 9 Olivenhain Municipal Water District. 10 19) The public water system shall meet all of the current requirements of the Olivenhain Municipal Water District and the 11 developer shall be responsib le for the preparation of all necess ary engineering construction plans and will enter into the formal 12 agreements, including financial guarantee for construction of the pub! ic water system. 13 20) Construciton of sewer facilities, easements, and sewer access 14 easements shall conform to the standards of the Leucadia County Water District. 15 21) The location of fire .hydrants and fire flows shall be approved 16 by the Fire Chief prior to final map approval. 17 22) All drainage easements shall be improved by a culvert or drain- age channel of adequate size, whichever is required by the San 18 Diego County Department of Sanitation and Flood Control. Where a drainage channel is required, such channel shall be lined 19 with a suitable material as specified by the County Department of Sanitation and Flood Control. An access easement shall be 20 provided to each drainage system maintenance access point as required by the San Diego County Department of Sanitation and 21 Flood Control. 22 23) Additional drainage easements and drainage structures be pro- vided or installed as may be required by the County Department 23 of Santiation and Flood Control. 24 24) All surface waters originating within the subdivision and all surface waters that may flow onto the subdivision from adjacent 25 lands shall be disposed of by a drainage system satisfactory to the County Department of Sanitation and Flood Control. 26 25) Prior to the issuance of grading permits the developer shall cause 27 a recognized archeological organization to submit a report to the Planning Commission for its approval, setting forth a program 28 for preserving the archeological resources of the site. The Planning Commission may consider recommending the imposition of 29 additional conditions deemed necessary in view of the archeologic- al report. Upon receipt of such recommendations, the City Council 30 may impose any additional conditions in that regard which shall be satisfied prior to approval of the final map. O J- -4- 26) Street names shall be approved by the Planning Director prior to approval of the Final Map. Said street names shall be designated in accordance with the standards and policies adopted by the Planning Commission on file with the Planning Department. 311 27) A bond shall be posted for a signal light at El Camino Real and Levante prior to final tract map approval. PASSED, APPROVED AND ADOPTED at a regular meeting of the City of Carlsbad Planning Commission held on November 12, 1975, by the following vote, to wit: AYES: Commissioners Jose, L'Heureux, Larson, Packard 4 5 6 7 8 9 10 11 12 „ E.H. Jose Jr., Chairman13 r 14 15 16 17 NOES: None ABSENT: Commissioners Watson, Dominquez, Fikes ATTEST: \J A Donald A. Agatep, Secretary V18 19 20 21 22 23 24 25 i 26 27 28| 29 30 31 32 -5- CITY OF CARLSBAD PLANNING DEPARTMENT STAFF REPORT November-12, 1975 TO: PLANNING COMMISSION FROM: PLANNING DEPARTMENT ' CASE NO: CT 75-7, SP-171 (GREEN VALLEY KNOLLS) APPLICANT: LA COSTA LAND CO. REQUEST: Approval of tentative map and specific plan on 106 acres consisting of 220 single family lots, 5 condominium lots and 2 open space lots east of El Camino Real and south of La Costa Avenue. SECTION 1: STAFF RECOMMENDATION Specific Plan: Staff recommends that SP-171 be APPROVED because of the following findings and subject to the following conditions: FINDINGS (1) The proposed Specific Plan is consistent with the General Plan because: a) The Land Use and density of the project (2.3 dwellings per acre overall) conform to General Plan designations (medium-high residential density, 10-20 dwellings per acre). b) Open Space, Parks, Circulation and Noise Attenuation are provided for in a manner consistent with applicable Elements of the General P.Ian. (2) The proposed Specific Plan is consistent with the City of Carlsbad Environmental Protection Ordinance of 1972 because: a) An Environmental Impact Report (EIR-167) for a prior project on the site was certified by City Council and a supplement covering the proposed project prepared; b) The adverse impacts identified in said Environmental Impact Reoort will be mitiaated either by conditions of this approval, ongoing local, state and federal programs, or have been found to be out- weighed by the economic and social benefits of the project. (3) The proposed Specific Plan conforms to applicable City policies and ordinances dealing with public facilities because: a) Provisions of Public Facilities has been assured, meeting minimum City standards, concurrent with need. CONDITIONS (SP-171) (1) SP-119 adopted by City Council October 16, 1973, Resolution 3250, shall be rescinded. (2) The approval is granted for the land described in the application and any attachments thereto, and as shown on the Plot Plan submitted labeled Exhibit B, dated October 24, 1975. The location of all roadways, parking areas, landscaping, and other facilities or features shall be located substantially as shown on the plot plan labeled Exhibit B, except or unless indicated otherwise herein. (3) All development conditions of the R-l zone shall apply to lots 1-220 except as otherwise noted herein. (4) All development conditions of the RD-M Zone shall apply to lots 221-225 except as otherwise noted herein. (5) To allow for proper maintenance of slope areas, no fences shall be con- structed across the slopes with toe-of-slopes adjacent to public streets as shown in Exhibit B, dated October 24, 1975. (6) Concurrent with final map recordation, an ooen space easement shall be granted to the City of Carlsbad over lot 226 and a portion of lot 227 as shown in Exhibit B, dated October 24, 1975. At the same time 20 foot open space easements over portions of lots 16, 34, 172 and 186 shall be granted to the City of Carlsbad as shown in said Exhibit, or shall be included in lots 226 and 227 if approved by the Planning Director. (7) A detailed landscape and automated irrigation plan shall be submitted to the Parks and Recreation Director for his approval prior to issuance to grading permits. Said plan shall include all slopes with toes-of-slope adjacent to public rights-of-way, and lots 34, 171, 172, 185, 186, 226 and 227. (8) Prior to the acceptance of subdivision improvements by the City, all landscaping and irrigation facilities included in the landscape and irri- gation facilities included in the landscape and irrigation plan described in the above Condition shall be installed. The applicant shall maintain said landscaping until such time as permanent maintenance is established. (9) Prior to any occupancy of any portion of the Specific Plan area the applicant shall file with the Clerk of the City of Carlsbad a petition for the formation of an Open Space Maintenance District as provided for in Section 50590 of the California State Government Code. The applicant shall maintain all landscaping installed in conformance with this plan until such time as an Open Space Maintenance District is established and accepts maintenance responsibilities as prescribed in the Open Space Maintenance Act, or until maintenance responsibility is accepted by another entity acceptable to the City. Should the City Council not approve such a Maintenance District, the applicant shall form a Homeowner's Association. The CC&R's for the Association shall contain provisions guaranteeing maintenance of said landscaping and shall be reviewed by the Planning Director. (10) Adopted City policies and ordinances pertaining to the creation and improve- ment of panhandle lots shall be adhered to. -2- " ,,,*„ (11) Prior to the issuance of building permits on Tots 223, 224, 225, a study of the noise levels on said lots shall be made by an acoustical engineer experienced in noise attenuation. Said study shall determine if attenuation measures are necessary to bring noise levels within 65 dB(A) outdoors and 45 dB(A) indoors. Said study shall recommend such attenuation measures as deemed necessary. Said measures shall be incorporated in the site design and building plans for said lots. (12) Dwellings located on lots 5 through 26 and 42 through 81 of Exhibit B dated October 24, 1975, shall be built with fire-retardant roofs approved by the fire marshal 1. Tentative Tract Map: Staff recommends that CT 75-7 be APPROVED because of the following findings and subject to the following conditions. FINDINGS (1) The proposed project has complied with the requirements of the City of Carlsbad Environmental Protection Ordinance of 1972 because: • (a) An Environmental Impact Report (EIR-167) for a prior project on the site was certified by City Council, and a supplement covering the proposed project prepared. (b) The adverse impacts identified in said Environmental Impact Report will either be mitigated by conditions of this approval, by on- going local, state and federal programs, or have been found to be outweighed by the economic and social benefits of the project. (2) The proposed map, its design and improvements, is consistent with the General Plan because: (a) The land use and density of the project (2.8 dwellings per acre overall) conform to General Plan designations (medium-high residential density, 10-20 dwellings per acre); (b) Open Space, Parks, Circulation and Noise Attenuation are provided for in a manner consistent with applicable Elements of the General Plan. (3) The proposed subdivision map, its design and improvements, is consistent with the applicable Specific Plan because: (a) The lots so created are consistent with the residential uses designated by the Specific Plan. CONDITIONS (CT 75-7) (1) CT 73-20, adopted by City Council on October 16, 1973, Resolution 3251 shall be rescinded. (2) The final map shall be submitted for approval within 18 months from the final action by the City Council on the Tentative Subdivision Map. The Final Map shall be in substantial conformance with the tentative sub- division map known as Exhibit B, dated October 24, 1975. -3- (3) The development of the property described herein shall be subject to the restrictions and limitations set forth herein which are in addition to all the requirements, limitiations, and restrictions of all municipal ordinances and State and Federal statutes now in force for the purpose of preserving the residential characteristics of adjacent properties. (4) In order to provide for reasonable fire protection during the construction period, the subdivider shall maintain passable vehicular access to all buildings and adequate fire hydrants with required fire flows shall be installed as recommended by the Fire Department. (5) Ornamental street lighting shall be provided for as required by Municipal Ordinance. The developer shall deposit cash in the amount necessary to energize said street lights for an eighteen month period after construction to permit the incorporation of the subdivision into a maintenance district. (6) All land and/or easements required shall be granted to the City of Carlsbad without cost to the City, and free of all liens and encumbrances. No easements shall be recorded prior to recordation of the final map unless approved by the City Engineer. (7) The improvement and grading plans shall include a report of a geological investigation and a complete grading plan of the entire site, when required by the City Engineer. Th^report and plan shall be prepared by Civil Engineers licensed by the State of California, and experienced in erosion control, who shall be acceptable to the City Engineer. They shall certify that they have investigated the site and prepared data with full consideration of the consequences to the included and neighboring properties and in conformance with the Geologic and Seismic Safety Element of the General Plan. - . (8) The cross gutter at the intersection of "A" Street and Levante Street is not approved as shown but shall be redesigned and approved by the City Engineer at such time as improvement plans are presented for review and approval. • • v (9) "A" Street shall be dedicated and improved as a residential collector street. / (10) Dedication of streets shall include a waiver of direct access rights from El Camino Real, Levante Street and Anillo Way shown on the final map as abutting thereon, except that a waiver of access rights to Levante Street from lots 82-88 is not required. -4- 13 ' c . (11) Improvement of the intersection of Levante Street and Anillo Way shall include a raised island to channelize right turn movements from Levante Street to Anillo Way. • (12) Park-in-lieu fees shall be paid to the City prior to City Council approval of the final map. (13) Concurrent with final map recordatiori an open space easement shall be granted to the City of Carlsbad over lots 226 and 227 as shown in Exhibit B, dated October 24, 1975. At the same time a 20.foot open space easement over portions of lots 16, 34, 172 and 186 shall be granted to the City of Carlsbad as shown in said Exhibit. (14) A detailed landscape and automated irrigation plan shall be submitted to the Parks and Recreation Director for his approval prior to issuance of grading permits. Said plan shall include all slopes with toes-of-slope adjacent to public rights-of-way and lots 34, 171, 172; 185, 186, 226 and 227. (15) Prior to the acceptance of subdivision improvements by the City, all landscaping and irrigation facilities included in the landscape and irrigation plan described in the above condition shall be installed. The applicant shall maintain said landscaping until such time as permanent maintenance is established. '(16) Prior to any occupancy of any portion of the Specific Plan area the applicant shall file with the Clerk of the City of Carlsbad a petition for the formation of an Open Space Maintenance District as provided for in Section 50590 of the California State Government Code. The applicant shall'maintain all landscaping installed in conformance with this plan until such time as an Open Space Maintenance District is established and accepts maintenance responsibilities as prescribed in the Open Space Maintenance Act, or until maintenance responsibility is accepted by another entity acceptable to the City. Should the City Council not approve such a Maintenance District, the applicant shall form a Homeowner's Association. The CC&R's for the Association shall contain provisions guaranteeing maintenance of said landscaping and shall be reviewed by the Planning Director. (17) Prior 'to the issuance of building permits on lots 223, 224, 225, a study of the noise levels of said lots shall be made by an acoustical engineer experienced in noise attenuation. Said study shall determine if attenua- tion measures are necessary to bring noise levels within 65 dB(A) outdoors and 45 dB(A) indoors. Said study shall recommend such attenuation measures as deemed necessary. Said measures shall be incorporated in the site design and building plans for said lots. (18) The water main serving "J" Street, as shown on Exhibit A, dated September 5, 1975, shall be looped unless rejected by Olivenhai/i Municipal Water District. -5- " p (19) The public water system shall meet all of the current requirements of the Olivenhain Municipal Water District and the developer shall be responsible for the preparation of all necessary engineering construction plans and will enter into the formal agreements, including financial guarantee for construction of the public water system. (20) Construction of sewer facilities, easements, arid sewer access easements shall conform to the standards of the Leucadia County Water District. (21) The location of fire hydrants 'and fire flows shall be approved by the Fire Chief prior to final map approval. (22) All drainage easements shall be improved by a culvert or drainage channel of adequate size, whichever is required by the San Diego County Department of Sanitation and Flood Control. Where a drainage channel is required, such channel shall be lined with a suitable material as specified by the County .Department of Sanitation and Flood Control. An access easement shall be provided to each drainage system maintenance access point as required by the San Diego County Department of Sanitation and Flood Control. (23) Additional drainage easements and drainage structures be provided or in- stalled as may be required by the County Department of Sanitation and Flood Control. (24) All surface waters originating within the subdivision and all surface waters that may flow onto the subdivision from adjacent lands shall be disposed of by a drainage system satisfactory to the County Department of Sanitation and Flood Control. (25) Prior to the issuance of grading permits the developer shall cause a recognized archeological organization to submit a report to the Planning Commission for its approval, setting forth a program for preserving the archeological resources of the site. The Planning Commission may consider recommending the imposition of additional conditions deemed necessary in view of the archeological report. Upon receipt of such recommendations, the City Council may impose any additional conditions in tha't regard which shall be satisfied prior to approval of the final map. (26) Street names shall be approved by the Planning Director prior to approval of the F.inal Map. Said street names shall be designated in accordance with the standards and policies adopted by the Planning Commission on file with the Planning Department. SECTION II: STAFF BACKGROUND REPORT LOCATION AND DESCRIPTION OF PROPERTY: The east side of El Camino Real between Olivenhain and La Costa Avenue. The site has a rolling topography with stands of Eucalyptus trees on and around lots 183 and 39. EXISTING ZONING: Project Site: PC North: PC & RDM East: PC & R-2 South: PC West: C-2; C (County) EXISTING LAND USE: ' . Project Site: Vacant North: Commercial Development East: Vacant, with some single family residences South: Vacant West: Vacant PAST HISTORY AND RELATED CASES: The existing La Costa Master Plan was adopted September 5, 1972 (Ordinance 9322). The Plan designates the site for residential development at 11.19 dwellings -per gross acre in the single family section. The density of the proposed project is 2.4 dwellings per acre in this section. The condominium section is designated for residential develop- ment at 15 dwellings per acre. Under the RDM development standards proposed, the five condominium lots in the project would be developed at 10-20 dwellings per acre in conformance with the Land Use Element designation. i The adopted Master Plan shows a combined elementary school/park site in the middle of the proposed project site. This school/park site has been shifted one-half mile to the east in the proposed amended Master Plan in conformance with a tentative Parks Agreement being negotiated by staff and the applicant. ___ CT 73-20 and SP-119 (Spanish Village), approving a condominium project on the-site, were approved by City Council October 16, 1973.(Resolutions 3251 and 3250 respectively). The tract map was granted an extension by Council on January 7, 1975. ENVIRONMENTAL IMPACT INFORMATION: EIR #167 was prepared for CT 73-20 and SP-119 in 1973 and certified by Council. That EIR identified the following adverse impacts which cannot be avoided should the proposal be undertaken: (1) A decrease in the amount of undevelooed land in the City of Carlsbad by 106 acres. A portion of this land has previously been disturbed through its use as a refuse dump. (2) A minimal decrease in water quality associated with urban areas from hydrocarbons, fertilizers, chemicals, etc. This decrease is typical of runoff from all development and cannot be avoided; it can be mitigated by siltation basins constructed with a storn drain program. ' • ^*S ' r\ ^(3) An in^^ase in traffic on El Camino ^J and La Costa Avenue. The Circulation System of La Costa and surrounding areas has been designed to accomodate this anticipated traffic increase. (4) An increase in air and noise pollution associated with the increased traffic. (5) An increase in noise associated with construction on the site. This noise v/ill be of a temporary nature lasting only until construction of the project is completed. (6) A minimal increase in the demand for public utilities. (7) A decrease in the amount of wildlife habitat available and a displacement of wildlife from the graded poritons of the project site. Some wildlife has already been displaced from the portion of the site used for the dumping of refuse materials. These same impacts will occur in the proposed project. Where necessary they are discussed in detail in the supplemental EIR prepared for the proposed project (Exhibit C, attached). Of these impacts numbers 1., 2, 6 and 7 cannot be completely mitigated. Staff• recommends that the Commission find these four impacts outweighed by the economic and social benefits of the project. GENERAL PLAN INFORMATION: The Land Use Element designates the project site for RMH use (10-20 dwellings per acre). The density of the project in the single family portion is 2.4 dwellings per acre. Under the RDM development standards proposed, the condominium lots must be developed within the general plan density. The condominium lots along El Camino Real fall within the adopted noise contours of that highway. Noise mitigation measures should be required for these lots in conformance with action Program 2.3 of the Noise Element. PUBLIC FACILITIES: Water and sewer services will be provided to the development by the Olivenhain Municipal and Leucadia County Water Districts, respectively. Both agencies have approved the project and guaranteed the provision of services in letters to the City. School services will be provided by the Encinitas Elementary and San Dieguito Union High School Districts. . Both Districts have approved the project"and guaranteed services. MAJOR PLANNING CONSIDERATIONS: Is the project an acceptable alternative to the adopted Specific Plan/ Tract Map? Are the panhandle lots proposed acceptible? Is an open space maintenance district an acceptable alternative for open space maintenance? . ' INCIDENTAL INFORMATION: All affected departments and agencies have contributed input to and reviewed this report. - -8-n SECTION III: QsCUSSION GENERAL AND MASTER PLAN CONFORMITY: The density of the proposed project is considerably lower than that designated in the General Plan and the existing La Costa Master Plan. It has been the policy of the City to consider residential densities significantly lower than those designated in the Land Use Element as consistent with the General Plan. The Commission must decide whether the project now proposed is more desirable than the higher-density development originally contemplated in the Master Plan. pEVELOPMENT STANDARDS: The applicant is not proposing to construct dwellings himself; he plans to sell the lots individually for custom homer and/or in groups to builders. Consequently the exact location and design of the dwellings cannot be approved by the Commission at this time. Staff recommends that as an alternative the development standards (building height, yard setbacks, coverage, etc.) of the R-l and RD-M Zones be adopted to assure development compatible with City Standards. • r PANHANDLE LOTS: The Commission should note that lots 12, 68, 69, 115, 139, 157 185 and 212 are panhandle lots with substandard street frontage. Staff feels that these lots are acceptable in terms of the City panhandle lot policy because: i (1) They are utilized in situations where sufficient land exists for the lots, but where topography or street alignment precludes full street frontage; (2). None of the lots have lengthy "Handles", the .maximum length is 50 feet. SLOPES: Exhibit A shows several shaded slope areas. While these slopes are not particularly high, their proximity to streets and the nature of the soil pose a potential maintenance problem. The applicant has expressed interest in establishing an open space maintenance district for the project area as an alternative to maintenance by a Homeowner's Association. Open Space Maintenance Districts are one solution to the Open Space maintenance problem currently being studied by staff. Staff recommends that Condition #11 of the Specific Plan_ approval be adopted to ensure proper maintenance of both slope areas and private parks. PRIVATE PARKS: The applicant has expressed interest in providing private recreation amenities within the project and has indicated on the plan that 6 lots may be reserved for them. However, this statement is not binding on the applicant. Therefore if the Planning Commission believes that private park sites are a necessity a condition should be added to the Specific Plan that requires such private parks. In determining if private parks are necessary the Planning Commission should consider the following: * The project will house 800-1000 people when built out. -9- * The neargst par* proposed in the amended^la Cos Master Plan is over h.to the east. * The P-C Zone is designed to integrate recreation amenities with tha residential community. * In adopting the Parks and Recreation Element, the City Council adopted the facility standards of San Diego County. These standards (summarized in Table VI, page 40 of the Element) are as follows for mini-parks and ' " neighborhood parks: Mini-Parks Neighborhood Parks Acres per 1000 People Size Range 0-5 2500 sq. ft. to 5 acres. 1-10 Minimum: 5 acres optimum: Without School: 10-30 acres With School 5-25 acres No maximum size Population Service Served Radius 500-2500 Maximum 1/8 mile 2000-5000 Optimum: %-3/8 mile Maximum: % mile in Urban area; 1 mile in rural areas. If the Commission believes private parks are necessary the following condition to the Specific Plan should be added: (13) Lots 34, 171, 172, 185 and 186 shall be reserved as private park sites, as shown in Exhibit B, dated October 24, 1975, and shall be maintained in accordance with the conditions stated herein. Staff feels that these five lots are appropriate for use as mini-parks in the project. Under Section 20.44.080 of the subdivision ordinance the applicant may receive a 25% credit against park-in-lieu fees by providing these private parks. Since these parks will serve the surrounding neighborhood only, their maintenance should be assumed by residents of the area. Staff feels that an open space main- tenance district is the appropriate entity to perform this maintenance since those who benefit directly will be assessed and continuity of maintenance is assured. ARCHEOLOGICAL RESOURCES The applicants' environmental consultant has identified an archpological site within the project (letter attached), staff recommends that condition 25 of the tentative tract mao be adopted to ensure its protection. AM/vb 10-31-75 ATTACHMENTS: Location Map Exhibit B, Revised Plot Plan dated October 24, 1975. Exhibit C, Supplement to EIR 167 letter from RECON, dated October 8, 1975 N\\\ \ ^ --I-I-I- « . « La Costa Green Valley Kr0Hsj Pesthole Test" « SDM-W-106 yt O 0 Individual pestholes Areas with cultural material SCALE IOO ZOO FT O SO 4O M. my^m /UW^*::!V\v:-V ^S^?:pf^^ ^jMfcH^S^^f/^^ ff^^^^^pN^fe^^'rlL^ ^ K ,£X:AX-X Vv^NNTY's </J\'\-"> -'r. ''• ^••'X''V^VVNJ\\^- Gtv^ ^:' '• ^ '• v-^ * •-"~^r\^x-' \\\-;fy; /VAX // ^, l^^\\**-;T7j. <r-< -fil \ *\ ,» . - l. - . --^ \ A -COCATION MAB '..SCALE 1? 2000" l^ '.^-^AO.!-.\ ^v-V:. •- \-,v-.•\«v^ :A^^ «\ /•. ?A^>^ ^.Jll.^-li,™/JLlJ.': i^U:jJj j •>•'»- ''•• - • i I *^> \ !£•"*, *J&* , .•'.'ngr. or^Arch. -rief legal: cf Requast: _ ..^ff^.y& It,;. ' o fcrftttA«fc.]|»^'.i»a»*inm »• «HIIIM» i .k*,>. , J.L ^^n Bim. ..J-....— >~~..1>*.^ n» . aV-aJfcJnAJ^ Cr"^ Book: ____ p^v'5c 'eneral Plan LantT Use Descripticu: Zone: ,.._ Parcel :~ proposed Zone:_>t-j> . "of Lots : r c t ','itcr Sanitation [Jistrct: 4 nltriin Coast Plan Arca:_ !••I L RICK ENVIRONMENTAL CONSULTANTS 5B20 FRIARS ROAD • SAN DIEGO. CALIFORNIA 9211O • TELEPHONE g?^ / 239-3125 October 8, 1975 <o, £> V* i *O r \4* y ^' City of Carlsbad Planning Commission ^s^Qy ^>^ City of Carlsbad *%> ty 1200 Elm Avenue ^ *&> Carlsbad, CA 92008 % ""£) "3* Reference: Results of a Posthole Series at Green Valley Knolls Archaeological Site SDM-W-106 Dear Commission Members: At site SDM-W-106, surface artifactual material (e.g. shell, stone tools, Indian pottery and midden) was found to be scattered over an area of approximately 700,000 square feet (16 acres). In order to recommend actions which would mitigate any adverse impact to the aforementioned cultural resources, it was necessary to determine the subsurface area of the site. A systematic pesthole series was conducted at the aformentioned archaeological site on September 30, October 1, and October 2, 1975 by three archaeologists representing RECON. This technical step was used to determine the vertical and horizontal subsurface distribution of artifacts at the site. The results from the pesthole series (see attached map) indicate that the subsurface site averages 70 centimeters (2.5 feet) in depth and covers an area of approxi- mately 25,000 square feet (.5 acre). The discrepancy between the subsurface and surface site can be explained by recent and current activities which have and are occurring at the site. Borrowing activity has removed a large portion of the subsurface material and dispersed archaeological objects over a wide area. Agricultural activity on portions of the subject property have scattered shell, midden, and artifacts over a large area. This, in conjunction with gravitational slope activity and off-road vehicles, has further scattered the site. Basically, the undisturbed archaeological site lies in the north central portion of the subject property. It consists of numerous artifacts, shell, and undisturbed midden, implying an occupational date of 7,000 to 10,000 years ago. Several fragments of pottery indicate that the Kumeyaay or Luiseno Indians also utilized the site at some point in time after 1,100 A.D. Gity of Carlsbad Planning Commission -2- October 8, 1975 SDM-W-106 is an important archaeological resource because 1. it is at least a double component site (La Jolla and Kum- eyaay), 2. aboriginal sites in Southern California are a non-renewable resource, and 3. the site contains a large' undisturbed area with midden artifacts and shell. Additional mitigation actions are recommended prior to the issuance of a grading permit. These actions are as follows. 1. A test excavation of approximately 2.5 percent of the area demarked as "A" on the attached map should be con- ducted. At least one test unit should be placed in area "B" to verify the presence or absence of disturbed site material. a. The excavation should be a scientifically controlled, hand-excavated test conducted by a qualified archaeo- logist as recognized by the City of Carlsbad. I b. Samples of organic material should be taken for Ci4 dates. c. A stratigraphic profile trench should be dug to expose the relationship between the archaeological level and the subsoil. d. A report on the excavation, along with a scientific analysis of the site material and appropriate maps should be prepared for the public record. Based upon information gleaned from the test excavation, a final analysis of the scientific importance of the site and, if necessary, a recommendation for any further mitigation will be made. Sincerely, BAM:JT • Bernard A. Maniscalco Enclosures Principal Environmental Scientist cc: R. Ladwig, F. Morey I. Roston, City of Carlsbad Engineer . SUPPLEMENTAL DRAFT ENVIRONMENTAL IMPACT REPORT ' FOR LA COSTA ...... CARLSBAD TRACT NUMBER 75-', GREEN VALLEY KNOLLS Prepared for LA COSTA LAND COMPANY COSTA DEL MAR ROAD CARLSBAD, CALIFORNIA 92008 Prepared by • u RECON RICK ENVIRONMENTAL CONSULTANTS S6SO FRIARS ROAD • SAN DIEGO, CALIFORNIA B211O . TELEPHONE 714 i E39-8123 SEPTEMBER 4, 1975 JOB NO. J 3984 TABLE OF CONTENTS I. INTRODUCTION II. DESCRIPTION OF THE PROJECT A. Location B. The Project's Technical, Economic, and Environ- mental Characteristics III. ADDENDUM TO THE DESCRIPTION OF THE ENVIRONMENTAL SETTING A. Geology B. Archaeology IV. ADDENDUM TO THE ENVIRONMENTAL IMPACTS SECTION OF THE • DRAFT ENVIRONMENTAL IMPACT REPORT A. Impacts on Archaeological Resources B. Noise Impacts C. Impacts on Air Quality D. Impacts on Community Services and Utilities E. Economic Impacts •V. MITIGATION MEASURES LIST OF FIGURES Figures 1. Location Map 2. La Costa Tectonic Map 3. Highway Noise Analysis Worksheet 4. Land Use and Average Noise Level Compatibility 5. Air Quality 6. Statistical Comparison of Development Under the Previously Approved Plan and Development as Proposed Under the Current Submittal 7. Criteria for Statistical Projections 8. Criteria for Economic Projections 9. Estimated Annual Revenues 10. Estimated Annual Expenditures and Construction-Related Revenues 11. Estimation of School District Related Expenditures and Revenues 12. Comparative Per Dwelling Unit Costs for Single- and Double-Loaded Streets I. INTRODUCTION La Costa is a dynamic community with an on-going planning process which is constantly refining and improving the com- munity's design and goals. This submittal is an example of this on-going, dynamic process. When originally conceived in the fall of 1973 as Spanish Village Units 2 and 3, it was proposed that the subject property be developed as 1,026 condominium units. The current proposal, now referred to as Green Valley Knolls, envisions 221 single-family and 140 multi-family units on the same property. This report reflects these new plans and goals. This report is both an amendment to the original draft environmental impact report for the subject property and a specific supplement to the Draft En- vironmental Impact Report for the La Costa Master Development Plan (currently in press). The latter document treats the subject property as a part of the master planning area. As such it examines the potential impacts'of this project in the context of the development of the entire La Costa community, II. DESCRIPTION OF THE PROJECT A. LOCATION Green Valley Knolls is located in the northwestern section of La Costa Far South within Area One planning area. It is immediately south of La Costa Avenue, west of El Camino Real, and north of a line formed by Levante Street and Anillo Way. It comprises a total of 106 acres. More specifically, the subject property includes portions of Sections 35 and 36, Township 12 South, Range 4 West of Section 2, Township 13 South, Range 4 West, San Bern- ardino Meridian, City of Carlsbad, County of San Diego, State of California. B. THE PROJECT'S TECHNICAL, ECONOMIC, AND ENVIRONMENTAL CHARACTERISTICS Green Valley Knolls is a family-oriented community which, as proposed, would consist of 221 single-family and 140 multi-family units on 106 acres. The proposed density is 3.4 dwelling units per gross acre (du/ac) or, more spe- cifically, 10 du/ac in the multi-family section and 2.4 du/ac in the single-family section. The multi-family units will be located adjacent to and west of the San Diego Gas and Electric Company's easement in the southwestern corner of the property and in the northeastern axil of the intersection of El Camino Real and Levante Street. Existing and planned land uses to the north, east and west of the subject property all reflect compatible, resi- dential developments comparable to the construction proposed. Areas to the west of the subject property will be developed as travel service centers along El Camino Real or are within the floodplain of Encinitas Creek and will probably remain in agricultural use. Grading of the site will require earthwork amounting to 900,000 gross cubic yards. Approximately 20 acres of the site, to the north and northwest, will not be graded and will be dedicated as open space. Approximately 16,000 lineal feet of roadways will be built with primary access to the site being along Levante Street. This street originates in the southwestern corner of the project site at El Camino Real, proceeds diagonally across the property to the-northeast, and then proceeds easterly to connect with La Costa Avenue near the latter's junction with Rancho Santa Fe Road. It is anticipated that the residential construction will proceed through either a lot-sales program or a builder's program. These two programs will be balanced within market demands and the orderly provision of utilities and community services. It is the intent of La Costa, within the Far South area, to develop a plan concept for a new residential community aimed at attracting builders who would develop more conventional housing serving a heterogeneous population, largely family-oriented, but possibly including some second-home owners and the elderly retired. It is anticipated that this project will reflect the overall area concept. ±11. ADDENDUM TO THE DESCRIPTION OF THE ENVIRONMENTAL SETTING A. GEOLOGY According to the Seismic Safety Element of the San Diego County General Plan, a small fault is known to be located beneath the subject property. This fault has, however, been described by consulting geologists as inactive (RECON, 1975). A total of 29 landslides were located on the La Costa properties during a study conducted by Benton Engineering. Five of these slides are located on or immediately adjacent to the project site (refer to the attached La Costa Tectonic Map, Figure 2). B. ARCHAEOLOGY A preliminary archaeological'examination of the Green Valley Knolls project area will begin immediately. This survey will identify archaeological resources extant on the•property and recommend necessary measures to be taken to mitigate any potential impact the proposed project may have on them.. One site, W-106, has been recorded on the subject property. This site was mistakenly reported in the original draft environmental impact report as W-182. 7 IV. ADDENDUM TO THE ENVIRONMENTAL IMPACTS SECTION OF THE DRAFT ENVIRONMENTAL IMPACT REPORT A. IMPACTS ON ARCHAEOLOGICAL RESOURCES Construction activities frequently disrupt archaeo- logical resources. The results of the archaeological survey will have to be carefully evaluated with respect to the pro- posed development to adequately evaluate potential impacts. B. NOISE IMPACTS The only potentially significant noise sources (pre- sent or future) near the project site are El Camino Real, La Costa Avenue, and Levante Street. A noise analysis of these roadways was conducted using methods outlined in Swing (1973). These calculations are presented as Figure 3. In four of the six cases presented, the L^n at 50 feet is less than 60 dB, the maximum level considered clearly compatible with residential development (see Figure 4). Of the two cases that exceed this value, one, La Costa Avenue - 1990, is over .400 feet from the project's lots. This distance will attenuate the noise level experienced to less than 52 dB. The other, El Camino Real - 1990, is in proximity to the multi-family area of the proposed project and may require mitigation. C. IMPACTS ON AIR QUALITY Automobiles are the principal source of air pollu- tion in the vicinity of the project site. Implementation of the proposed development will ultimately result in an in- crease in vehicular activity resulting in a local decrease in air quality. Whether the extent and concentration of automobile generated pollutants will exceed federal and state standards will depend on a number of considerations; the regulation of emission control by mechanical devices, the degree to which the internal combustion engine may be replaced by other pro- pulsion systems in public and private vehicles, the implemen- tation of mass transit, and lowering or raising of federal and/or state standards. However, even if the air pollutants generated by increased vehicular activity are not, by them- selves, significant in relation to the total quantity of air pollutants within the San Diego Basin, the important consider- ation is that when added to other sources of air pollution in the area, these new pollutants could significantly impact air quality. This is especially true when the project area is subjected to a thermal inversion. The actual quantity of air pollutants that could be potentially generated by automobile traffic related to Green Valley Knolls was estimated. These figures are pre- sented in summary form below with detailed culculations being given as Figure 5. Summary of Vehicular Air Pollutants »> Carbon Oxides of Hydrocarbons Monoxide Nitrogen (tons/day) (tons/day) (tons/day) 1980 0.046 0.481 0.0531 1990 0.011 0.095 0.011 D. "IMPACTS ON COMMUNITY SERVICES AND UTILITIES The impact that development in the La Costa community will have on community services and utilities has been exten- sively outlined and examined in the Draft Environmental Impact Report for the La Costa Master Development Plan. The reader is referred to that document for a detailed discussion. The specific impact that this project will have has been summarized statistically, and compared with the impact the original pro- posal would have had, in Figure 6. As can be seen, the revised proposal will, in all categories, reduce the potential impacts to community services and utility services. E. ECONOMIC IMPACTS Implementation of the proposed development will in- crease property values within the boundaries of the project site. If the plan is implemented as proposed, the estimated market value of the completed development would be $25,270,000. This figure is based on a maximum of 361 residential units valued at an average of $70,000. If the project were assessed at 25 percent of market value with an average tax rate of 10.994 per $100 assessed valuation, the completed development would yield $694,545 in annual property tax revenues. An additional $56,611 in other annual revenues would also be generated by the project for an estimated annual, gross revenue of $751,156. In addition to these annual revenues, taxes and fees related to construction and new development would add approxi- mately $157,577 to revenues generated by the completed develop- ment. Although this amount will not be paid annually, it represents a substantial payment to taxing agencies. f '*** In general, the proposed project will have a positive economic impact. This assumption is based on the developer meeting the cost of local improvements and the completed project generating tax revenues in excess of expenditures required to maintain services provided by the City of Carlsbad and the County of San Diego. This conclusion is consistent with the Urban Land Institute study titled "A Comparative Analysis of Costs and Revenues for Publi'c Services," which indicates that medium- and upper-price new housing development generally contribute positive net incomes. The proposed project will generate gross annual revenues of $751,156 while requiring annual expenditures of $281,435. This represents a net income to taxing agencies of $469,721 annually. Detailed economic projections have been included as Figures 8 through 11. t An analysis was also made of the economic impact of single versus double-loaded streets on the cost of a single dwelling unit. Approximately 26 acres of the project is proposed for single-loaded streets. This area was analyzed in terms of the per unit cost of grading and road construction for the two street types. It was found that a savings of $5,150 per unit could be utilized by using the single-loaded mode. Detailed calculations are presented as Figure 12. to V. MITIGATION MEASURES No extensive discussion of mitigating measures recommended to minimize possible adverse environmental impacts of the proposed action will be included in this document. The reader is referred instead to the reports to which this submittal is an addendum. An extensive discussion of mitigation measures is to be found in the Draft 'Environmental Impact Report for the La Costa Master Development Plan. BIBLIOGRAPHY RECON, 1975, Draft Environmental Impact Report for the La Costa Master Development Plan, in press, San Diego, California. Rick Engineering Company, 1973. DraJLt Environmental Impact Report for Spanish Vill-age Units 2 and 3, San Diego, California. Swing, Jack W., 1973, Development of Ground Transportation Systems Noise Contours for the San Diego Region. Wyle Laboratories, San Diego, California. Westinghouse Learning Corporation, Davis MacConnel Ralston Division, 1973, Master Plan San Dieguito Area Schools, San Diego, California. ?/ -Ov\X-;//^-> I f—li~z^-~"*- ---SI-V- SysJ^^SIift: fSSli^iSi }\..'V\ GREEN VALLEY KNOLLS ;;| & LOCATION MAP . , i-vW^V: Figure 1 ^^.vr'-r'""^ ?! ^AT\d.1^v:^^%Wf7^5Sfefr»-*v^-"^Vrr-rr r^V, sH'r-ytJ I ^ P» ^' • > • i-Vr^-y—r-r\—J ^-\ /^^ - ~-^'' LA COSTA CARLSBAD, CALIFORNIA Qol Recent Alluvium Qt Pleistocene Terrace Deposits •': Tes Tertiary Sandstones Santiago PeakMetavolcanics m.y I: f ('.'.•• \-.- •v<7 <*vN-r: .'.•-->, ..• ,u. :„<o<,i.,7^,^;; C •• v ^^AM^>??^::CO > f'. ^:. '('•'ill o Figure 3 HIGHWAY NOISE ANALYSIS WORKSHEET Date 9/3/75 Page 1 of 2 Ref. 1 1 l' 1 Segment La Costa Avenue north of the subject property El Camino Real west of the subject property El Camino Real (1990 projec- tions) La Costa Avenue (1990 projec- tions) /"Median 6X// 4 >X ADTdo3) 1.4 4 31 33 Average Hourly Flow ' Day 93 232 1798 1914 Night 20 58 447 477 Trucks 0 2 *• 4 4 Leq' dB Day 53.5 59.5 77.5 66 Night 47 53 65.5 60 C .4 r-l -P •H -P 0•H inCH <SJ 52 58 76 64 Adjustmentfor Median0 0.1 0 0.2 Adjustmentfor Grade0 0 0 0 4J O -P C 52 58 76 64 ^Distance toLdn=65dB(feet)N/A N/A 340 N/A * Final L^n readings are adjusted to the nearest dB 1 Traffic flows (ADT) were obtained from the City of Carlsbad Traffic Engineer. HIGHWAY NOISE ANALYSIS WORKSHEET Date 9/3/75 Page 2 ' of 2 Ref . 2 2 Segment Levante Street (present Levante Street (1990 projec- tions) Lanes/'^ /^Median 2/ /° '/ 2/ /O / / ADT (103) 1,000 5,000 Average Hourly Flow' Day 58 290 Night 14 72 Trucks 0 0 Leq, dB Day 51.5 55 Night 45.5 49 ' CTJ rH .P dJ V-)•H •P O•H IT)cH.<2> 50 •54 -P Cfi «J 0) -H £s 'O 4J Q) W S •n !^4 T3 O 0 0 -p C Q)0) no £ fu •P S i W O •n J-i T3 O< 4-1 0 * Q -Pm 0in .p C * J 50 54 O4J 0) CQ ^"^ U'O tiC in y ft \0 W•w H iiwe"-' -H T3 N/'A N/A 2 Current ADT values are not available. Values used are maximum estinates. t c LAND USE Residential, Single Family, Duplex, Mobile Homes Resident Ial- Multiple Family Transient Lodging Schools, Libraries, Churches Hospitals, Nursing Homes Music Shells Auditoriums, Concert Halls Sports Arenas, Outdoor Spectator Sports Parks, Playgrounds •Natural Recreation Areas Golf Courses, Riding Stables, Water Recreation, Cemeteries Office Buildings, Personal, Business and Professional Commerical, Retail, Movie Theatres, Restaurants Commercial-Wholesale, Some Retail, Ind., Mfg. Livestock Farming, Animal Breeding Agriculture (Except Livestock), Mining AVERAGE NOISE LEVEL (CNEL OR Ldn IN DECIBELS) 55 ^O 65 70 75 80 'K&swX&C JYWW YVVYVYm^mr^fm ^v-Vw'/VViV..'\A/V INTERPRETATION CLEARLY COMPATIBLE The average noise level Is such that Indc t outdoor activities associated with the land use may be carried out with essentially no interference from noise. NORMALLY COMPATIBLE The average noise Nrvel Is great enough t be of some concern, but common building construction should makr the Indoor envlr onment compatible with the usual indoor activities, including sleeping. NORMALLY INCOMPATIBLE The average noise level is significantly more severe so that unusual and costly building construction may bo necessary to Insure an adequate environment for indoor activities. Barriers must be erected between the site and prominent noise sources to make the outdoor environment tolerable. mmm CLEARLY INCOMPATIBLE The average noise Icvol is so severe that construction costs tu make the indoor environment acceptable for performance of activities would probably be prohibitive. The outdoor environment would be intolerable for outdoor activities associated with the land use. SOURCE: Wilsey £ Ham and Bolt, Beranek and Newman, Aircraft Noise Impact Planning Guidelines for Local Agencies, U. S. Department of Housing and Urban Development Report TE/NA-^72, November 1972. Adapted with modifications from Figure 2-15. Figure 4 • . LAND USE AND AVERAGE NOISE LEVEL COMPATIBILITY /—* Figure 5 AIR QUALITY Automobile Emissions Daily vehicle trips generated from proposed project = 361 residences x 10 trips per residence per day Daily motor vehicle miles generated by projected project = 3,610 trips per day x 7 miles per trip* = 3,610 trips per day =25,270 miles per day *Average length of trip to and from residences within San*Diego Region. 1980 Automobile Age Distribution and Miles Driven (California Statis- tical Abstract, 1971, Table J-9): Year 1980 1979 1978 1977 1976 1975 1974 1973 or older Age Class 1 2 3 4 5 6 7 7+ J-9): Percent of Total Automobiles 8.09 10.06 9.79 8.47 8.84 9.22 8.53 37.00 Miles/Day By Class 2,044 2,542 2,474 2,140 2,234 2,330 2,156 9,350 Totals 100.00 25,270 c o The following are emissions in grams/mile based on "worst possible case" future state standards to 1977 and projected standards there- after (Federal Registers: Vol. 37, No. 221, November 15, 1972; Vol. 38, No. 124, June 28, 1973; Vol. 38, No. 151, August 7, 1973): Age Hydrocarbons (HC) Carbon Monoxide (CO) Oxides of Nitrogen (NOX) Class Grams/Mile Grams/Day Grams/Mile Grams/Day Grams/Mile Grams/Day 1 2 3 4 5 6 7 7+ Totals Total Tc 0.41 0.41 0.41 0.41 0.41 0.9 3.0 3.2 :>ns/Day 838 1,042 1,014 877 916 2,097 6,468 29,920 43,172 0.048 3.4 3.4 3.4 3.4 3.4 9.0 28.0 34.0 6,950 8,643 8,412 7,276 7,276 19,260 60,368 317,900 • 436,085 0.481 0.4 0.4 0.4 0.4 0.4 2.0 3.1 3.5 818 1,017 990 856 4,280 6,684 32,725 48,226 0.0531 (One gram 1.102 x 10"6 tons) 0.4 gram mile x 25,270 1.102 x 10 gram -6 T „ milesx —, xday = 0.011 T/Day Carbon Monoxide:3.4 grams milesmile - x 25,270* -- x 1.102 x 1Q-6 gram T 0.095 T/Day Oxides of Nitrogen:0.4 gram miles mile X 25'270 x ~ 1.102 x 10 gram "6 0.011 T/Day Figure 6 STATISTICAL COMPARISON OF DEVELOPMENT UNDER THE PREVIOUSLY APPROVED PLAN AND DEVELOPMENT AS PROPOSED UNDER THE CURRENT SUBMITTAL Previously Approved Current Proposal O Number of units Value Population Students: .Elementary Secondary Total Privately Owned Vehicles Gas Consumption (cubic feet/month) Electricity Consump- tion (cubic feet/ month) Water Demand (gallon/day) Sewage Generation (gallon/day) Solid Waste Gen- eration (cubic yards/day) Multi-Family 1,026 $71,820,000 2,257 41 62 103 1,744 4,658,040 593,028 338,550 191,845 12,752 12.1 Single-Family 221 $15,470,000 663 35 35 70 376 1,003,340 127,738 . 99,450 56,355 3,746 3.6 Multi-Family 140 $ 9,800,000 308 6 8 14' 238 1,638,940 80,920 46,200 26,180 1,740 1.7 Total 361 $25,270,000 971 41 43 84 614 2,642,280 208,658 145,650 82,535 5,486 5.3 Figure 7 CRITERIA FOR STATISTICAL PROJECTIONS 1. Residential a< Units. Housing unit quantities were projected by multiplying the gross acreage by the maximum density shown on the La Costa Master Development Plan. b. Population. This was based on 3.0 persons per single-family dwelling and 2.2 persons per multi-fairily unit. Figures derived from the December, 1973 Master Plan for San Dieguito Area School Districts were used. That master plan took into account many parameters of future population growth and student generation for the San Dieguito area; housing prices, location, number of bedrooms, and single- or multi-family type were all separate considerations of that study. Future popula- tion mix and yields for housing types were derived from a com- pilation of various data including census information on age groupings and persons per household of census tracts, county and city information, builder and developer estimates, public school records, and actual statistical sampling of recently occupied buildings. These factors were analyzed by. computer, and eight different dwelling types were designated for twenty subareas within the San Dieguito area. Within the La Costa subarea, four different housing types were represented; three single-family types, with people-per-household generation factors of 3.5, 3.0, and 2.5, and one multi-family type with a population generation factor of 2.2 people per household. For the purpose of this La Costa Master Development Plan, the average figure of 3.0 people per household was chosen to project population generation for single-family homes, and the 2.2 figure was used for multi-family units. Both population-gener- ation housing types have accompanying student-generation figures, which- are discussed below. c. Student Generation. This was based on the above mentioned master plan; factors were 0.16 kindergarten through sixth-grade students per single-family home, 0.04 kindergarten through sixth-grade students per multi-family dwelling; 0.08 seventh- through ninth-grade students per single-family homes, and 0.03 seventh- through ninth-grade students per multi-family home. High-school student generation was calculated using the same factors as for junior-high students. d. Number of Privately Owned Vehicles. A vehicle generation factor of 1.7 vehicles per residence was utilized. This factor is based on census tract data applicable to resi- dentes in the price range anticipated for La Costa. Figure 8 CRITERION FOR ECONOMIC PROJECTIONS Property Tax. Property tax rate was taken from the 1975 Secured Property Tax Bill for the property under consideration. Assessed value was estimated from similar developments at current prices. Property Tax rates for elementary and secondary schools are estimated with an average rate. This average is based on the rates of the five districts servicing La Costa (see following page). Tax rates related to bond indebtedness are not included in estimated revenues. Franchise Tax. Franchise tax is estimated at two percent of the annual gas and electric bill for each dwelling unit. Aver- age bills are $20 per month for five summer months and $40 per month for seven winter months. ' Sales Tax. According to federal statistics, twenty percent of an individual's gross annual income is used in taxable pur- poses. Of this amount, approximately 1.25 percent is secured as sales tax. An average gross income of .$39,525 per dwelling unit was adjusted from 1970 Census Tract Data. Business and License Fees. $452 per capita per year. Fines and Forfeitures. $2.88 per capita per year. Alcoholic Beverage Tax. $0.48 per capita per year. Cigarette Tax. $4.36 per capita per year. Vehicle License. $11.55 per vehicle per year. Gas Tax. $4.78 per vehicle per year. Use Tax. Approximately thirty.percent of the value (sales cost) of new construction is taxable materials. Of this amount, 1.25 percent comes back to the city as use tax. Property Transfer Tax. Applicable to new construction only, the Property Transfer Tax is estimated to be $.275 per $500. Building Permits. Residential building permits are estimated at $58.50 per dwelling unit and $4.40 per $1,000 market value. Figure 9 ESTIMATED ANNUAL REVENUES Property Tax Taxing Agency: County Carlsbad City Flood Control District Municipal Water District Metropolitan Water of Southern California County Water Authortty County Water District Subtotal: Elementary and High School Elementary School Areawide Tax Other Education Subtotal: Rate Per $100 Assessed 2.962 0.984 0.630 Revenues 1.691 1.840 0.107 0.911 0.150 ,0.110 0.609 $170,004 116,242 6,760 57,552 9,476 6,949 38,474 405,457 187,124 •62,164 39,800 289,088 Other Annual Revenues Business and License Fees Fines and Forfeitures Alcoholic Beverages Cigarette Tax Gas Tax Vehicle License Fees Miscellaneous Subtotal: Franchise Tax Sales Tax Subtotal: Per Capita 4.52 2.88 .48 4.36 4.78 11.55 .88 Per Dwelling Unit 7.60 70.00 4,389 2,796 466 4,236 4,641 11,215 854 28,597 2,744 25,270 28,014 Total estimated annual revenues from completed Green Valley Knolls Development: $751,156 **"*• Figure 10 ESTIMATED ANNUAL EXPENDITURES Per Capita Service Cost Expenditures ^—"•—• -- - - - * r ~~7 - u - •_ -i-_l^T--_.. General Govennment $30.03 $ 29,159 Public Safety 64.89 63,008 Engineering and Public Works 37.68 36,587 Sanitation 4.91 4,768 Libraries 13.32 12,934 Parks and Recreation 13.70 13,303 Planning ' 6.67 6,477 Contributions to other Governments 13,16 12,778 Schools * 93,760 Other 8.92 8,661 Total: $281,435 * Annual school-operating costs were obtained from the County Superintendent of Schools for the district. Expenditures were expressed in terms of costsper student per year. CONSTRUCTION-RELATED REVENUES** GENERATED BY COMPLETED GREEN VALLEY KNOLLS DEVELOPMENT Use Tax [30 percent of market value x 0.0125] $ 94,763 Property Transfer Tax [$.275 per $500 market value] 13,899 Building Permits [58.50 per d.u. + 4.40 per $1,000 assessed value] 48,915 Total: $157,577 ** Paid once only, not annually. Figure 11 ESTIMATION OF "SCHOOL DISTRICT RELATED EXPENDITURES AND REVENUES Encinitas Union School District San Dieguito Union High School District Revenues Tax rate Tax rate for bond indebtness Estimated assessed value of project Estimated tax revenue Estimated revenue for bond indebt- nexx Total estimated revenue 1.480 0.206 $93,499 $13,014 1.482 0.043 $ 6,317,500 $93,625 $ 2,717 $202,855 Expenditures Estimated student generation Expenditure per ADA Expenditure per district Total estimated expenditure 41 $ 893 $36,613 43 $ 1,329 $ 57,147 $ 93,760 c Figure 12 COMPARATIVE PER DWELLING UNIT COSTS FOR SINGLE- AND DOUBLE'-LOADED STREETS Single-Loading Double-Loading Acreage ' 26 26 Linear length of streets 4,800 2,400 Cost of linear feet of roadway $ 32.50 $ 37.50 Total cost of streets $'156,000 90,000 Grading necessary (gross cubic yards) 750,000 '1,250,000 Cost of grading per cubic yard $ 0.75 0.75 Total cost of grading $562,500 $ 937,500 Total cost of grading and road construction $718,500 $1,027,500 Number of dwelling units 60 60 Cost of grading and road construction per dwelling unit $ 11,975 $ 17,125