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5 - ResourcesNA TURAL RESOURCES ELEMENT The City of poway comprises an area and other waters harbors fisheries that has many natural resources such as wildlife minerals and other natural the creeks and channels canyons resources grassland areas and mountains These areas provide the City with rich aesthetic Section 65302 e of the Government visual resources that add to the City s Code which requires preparation of an rural character and support a significant open space element that addresses amount of native plant and animal life the use of land for preservation of The Natural Resources Element contains natural resources managed provisions to conserve and manage production of resources outdoor these resources Identified are those recreation and public health and areas of significant value to the safety community and its quality of life including Section 65303 of the Government Code permits a community to prepare Land Resource Conservation additional elements if they are Water Resource Conservation deemed to be important The City of Air Quality Poway recognizes the necessity to Biological Resource Conservation preserve its cultural and historical Open Space heritage from which the community identity has grown and through which The objectives and policies included it will help shape the City s future herein are directed at ensuring that the development of the City does not RELATED PLANS AND PROGRAMS interfere with the intrinsic value of these There are other existing plans and resources programs which are directly applicable to State law requires cities and counties to the aims and objectives of this element Most of these plans were enacted identify environmental resources and to through Federal and State legislation and prepare and implement policies relating are administered by Federal and State to the utilization and management of agencies or special districts that have these resources The specific sections been delegated with powers to enforce that are addressed by this element Federal and State laws One exception include is the Regional Growth Management Section 65302 d of the Government Strategy which is being prepared by SANDAG pursuant to an initiative which Code which requires the preparation was approved by the San Diego County of a conservation element to specify voters in November 1988 policies for the conservation development and utilization of natural California Environmental Quality Act resources including water and its Law and Guidelines CEQA The hydraulic force forests soils rivers California Environmental Quality Act was INCLUDES AMENDMENTS THROUGH GPA 9401 NATURAL RESOURCES 1 POWA Y COMPREHENSIVE PLAN GENERAL PLAN California Environmental Quality Act implementing plans and programs to Law and Guidelines CEQA The achieve Federal clean air standards California Environmental Quality Act was adopted by the State legislature in The San Diego County Air Pollution response to a public mandate that called District is preparing the Revised Regional for a thorough environmental analysis of Air Quality Strategy as required by the those projects that might adversely affect California Clean Air Act of 1988 This the environment The provisions of the plan will contain transportation control law review procedure and any measures which are being prepared for subsequent analysis are described in the the region by SANDAG CEQA Law and Guidelines as amended in 1986 CEQA will continue to be Other laws Other Federal laws that are instrumental in ensuring that the impacts concerned with the protection of of all potentially significant projects are significant cultural and natural resources assessed by City officials both appointed include the Endangered Species Act of and elected and the general public 1973 amended in 1978 the Antiquities Act and the National Historic In conjunction with the 1991 update of Preservation Act of 1966 the General Plan a Master Environmental Assessment MEA was prepared and added to the volumes comprising the Poway Comprehensive Plan This document contains baseline environmental information describing existing conditions for each environmental impact area contained in the City s Environmental Initial Study Checklist The MEA was prepared in accordance with the General Plan Guidelines November 1990 issued by the State Office of Planning and Research and in full compliance with the State CEQA Statutes and Guidelines June 1986 San Diego County Air Quality Plan poway is located within a non attainment area in that the Federal clean air standards prepared by the Environmental Protection Agency have not been achieved To comply with the provisions of the Clean Air Act the State of California established a number of special districts charged with NATURAL RESOURCES 2 INCLUDES AMENDMENTS THROUGH GPA 9401 J l r STARVATION MT J L I I J 44 L l I 0 I I r LEY C EEK liELJr1 l OODSON C o o SO 8 eo d V I J I TOOTHR r4 I I 1 1 iFT Es i AKfiC ttfpo j Lr IRON MT POW M CV r oi 0 I Cdy 01 Poway il 0 iI l 9 I l Ii 1 O 0 I V dP Ao B I ourll II 1 1 1 Jo I 0 SI o amoo Cm i Park RoumJary I 1 hoh eociQ lMI i I l J Z 2 f lC i c r 1 TI CD t I a c c r CD tJ J m o S o POWA Y COMPREHENSIVE PLAN GENERAL PLAN LAND RESOURCES behavior are not generally suitable for septic tanks do not capture and hold Land has historically been one of the run off well and are highly erosive most valuable resources The nature of Tables IV 3 IV 4 and IV 5 further land in regard to its location soil illustrate the relative problems associated composition topographic features with the soils found in the City vegetation and as watershed determines WATERSHED AREAS the value not only in monetary terms but also to the community as a whole The The mountains on Poway s eastern Land Resources chapter refers to the boundary are part of an extensive relative value of the soil composition and network of canyons and creeks forming a land form types that exist in the City major watershed area Most of this area is covered with coastal sage scru b SOIL COMPOSITION vegetation The City of poway considers The knowledge of the soils suitability or the maintenance of the watershed limitations in poway assist in the process capabilities of these areas as a very of determining proper land uses and important objective Significant changes conserving limited resources if to these eastern mountain areas that necessary It can also help in avoiding would reduce the watershed capability of the economic losses social costs and this land would severely impact the areas severe individual hardships that result of poway adjoining natural creeks and from structural damage to homes by the channels failure of private subsurface sewage MINERALSdisposalsystemsfromthepreemptionof suitable sources of construction material Poway s only known valuable mineral near developed areas and from brush resource as recognized by the California fires soil erosion and sedimentation In Department Conservation Division of the following pages the Land Resources Mines and Geology is construction chapter identifies and evaluates the quality sand and gravel which is located general soil composition in poway in in the South poway area of the City terms of the soil associations that exist Currently one sand and gravel extraction and some of the soil related problems operation is located in Beeler Canyon on that can occur without proper soil the southernmost portion of this area management The continuation and possible expansion of this operation is currently under study Table VI 1 illustrates the general soil associations that exist in Poway Figure VI 2 delineates their boundaries Table VI 2 illustrates that the soil associations located in poway do pose problems for development because most of the soils have high shrink swell INCLUDES AMENDMENTS THROUGH GPA 9401 NATURAL RESOURCES 4 POWA Y COMPREHENSIVE PLAN GENERAL PLAN TABLE VI 1 GENERAL SOIL ASSOCIATION OF POWAY 1 Ramona Placentia Association A well drained to moderately well drained sandy loam thatbasa subsoil of sandy clay over granitic alluvium generally occurs up to 15 percent slOPe has a moderate to high shrink swell behavior poses severe limitations to septic tank usage has a slow to very slow run off permeability and is highly erosive 2 Reddina Association A well drained cobbly loam and gravelly loam that has a gravelly clay subsoil over a hardpan generally occurs to 9 percent slope has a high shrink swell potential poses severe limitations to septic tank usage has a very slow run off permeability and is highly erosive 3 Reddina Olivehain Association A well drained gravelly loam and cobbly loam that has a SUbsoil of gravelly clay over a hardpan of cobbly alluvium generally occurs up to 50 percent slope has a moderate shrink swell behavior poses severe limitations to septic tank usage has very slow run off permeability and is highly erosive 4 Fallbrook Vista Association A well drained sandy loam and coarse sand loamy that has a subsoil of sandy clay loam and sandy loam over decomposed granidiorite generally occurs between 9 and 30 percent slope has a low to moderate shrink swell behavior poses severe limitations to septic tank usage has a slow run off permeability and is highly erosive 5 Cienaba Fallbrook Association An excessively drained to well drained coarse sandy loam and sandy loam that has a subsoil of sandy clay loam over decomposed granidiorite generally occurs between 9 percent and 75 percent slope has a low to moderate shrink swell behavior poses severe limitations to septic tank usage has a moderate to slow run off permeability and is highly erosive 6 Excheauer San Miauel Association A rocky well drained silt loam over metavolcanic rock generally occurs between 30 percent and 70 percent slope has a low to high shrink swell behavior poses severe limitations to septic tank usage has a very slow permeability and is highly erosive 7 Fraint Escondido Association A well drained sandy loam and very fine sandy loam over metasedimentary rock generally occurs between 30 percent and 70 percent slope has a low shrink swell behavior poses severe limitations to septic tank usage has a slow to very slow permeability and is highly erosive 8 Diablo Allamont Association A well drained clay generally occurs between 5 percent and 15 percent slope has a high shrink swell behavior poses severe limitations to septic tank usage has a very slow permeability and is slightly erosive NATURAL RESOURCES 5 INCLUDES AMENDMENTS THROUGH GPA 9401 o 23 21 1 26 J J J r r I I unrJiCurrentSphereBoundaryfj I I r l12t City 01 poway L 1111PoposedPlanningAreaBoundaryjJiJ Sycamore Canyon JIParkBOUndary1@IJ 1 hctl eooo Ci CD LEGENDCD T1 eg g 8 Ramona Placentia 23 Cineba Fallbrook 12 Redding Olivenhain 26 Friant EscondidoIenI enill0 21 Fallbrook Vista 27 Diablo Altamont3Q l 0 0 POWA Y COMPREHENSIVE PLAN GENERAL PLAN TABLE VI 2 SHRINK SWELL BEHAVIOR Low Moderate High Vista Ramona Placentia Cieneba Olivehain Redding Exchequer Fallbrook Redding Friant Escolldido Fallbrook San Miguel Diablo Altamont Factors Affecting Shrink swell Potential Shrink swell Potential Low Moderate High Amount of clay 0 18 clay 18 35 mixed 35 mixed or and predominant and any clay or montmorril montmorril clay mineral mineral or lonitic clays lonitic clays 0 35 Kaolinitic clay Source Soil Survey San Diego Area California by U S DA Soil Conservation and Forest Service December 1973 WA TER RESOURCES Water resources in the City should be managed through Natural water systems such as surface retention of the natural drainagewatersandgroundwaterareakey element in the environmental composition systems protection of limited groundwaterofthecommunitySurfacewaters provide open space and recreational resources opportunities create and sustain wildlife promotion of domestic water habitat and provide natural edges and xconservation measures greenways in the form of creeks and development of a reclaimed water channels Groundwater also sustains supply and distribution system and wildlife habitat and provides long term preservation of water quality at or water storage The City of poway above acceptable public health considers the natural waters a principal standards resource worthy of active conservation INCLUDES AMENDMENTS THROUGH GPA 9401 NATURAL RESOURCES 7 POWAY COMPREHENSIVE PLAN GENERAL PLAN TABLE VI 3 SEPTIC TANK EFFLUENT DISPOSAL Slight Moderate Severe Ramona Placentia Redding Redding Olivenhain F allbrook Vista Cieneba Fallbrook Exchequer San Miguel Friant Escondido Diablo Altamont Explanation Slight means that soil properties are generally favorable or in other words limitations are minor and easily overcome and the soil can support a filter field of appropriate size that is properly installed and maintained Moderate and Severe indicate progressively greater limitations and the need for compensating measures In some areas enlargement of the filter fields suffices but in others limitations may be severe enough to preclude the use of a standard septic tank filter field disposal system Source SoilSurvey of San Diego Area California SURFACE WATERS recreational and open space linkages to poway lies amidst a regional drainage connect neighborhoods within the system of westward tending streams community which convey surface water toward the Pacific Ocean Two major watersheds Major creeks in the northern portion of divide the City Surface water flows into the City include Thompson Creek the San Dieguito River and Lake Hodges Sycamore Creek Green Valley Truck from the northern portion of Poway while Trail Creek Green Valley Creek and water from the southern areas of the City Warren Canyon Creek which flows into flows into Los Penasquitos Creek Lake Poway In the southern area the These channels not only carry flood creeks include Penasquitos Creek waters but as continuous and city wide Beeler Creek poway Creek Rattlesnake natural features may be utilized as Creek and Pomerado Creek NATURAL RESOURCES 8 INCLUDES AMENDMENTS THROUGH GPA 9401 POWA Y COMPREHENSIVE PLAN GENERAL PLAN TABLE VI4 RUNOFF POTENTIAL OF SOILS A B C D Ramona Placentia Redding Redding Olivenhain Fallbrook Vista Cieneba Fallbrook Exchequer San Miguel Escondido Friant Diablo Altamont A Soils with high infiltration rate when thoroughly wetted chiefly deep well drained to excessively drained Rate of water transmission is high run off is low B Soils have moderate infiltration rate when thoroughly wetted soils are moderately deep moderately well drained coarse textured rate of water transmission is high C Soils have slow infiltration rate when thoroughly wetted soils that have a layer impeding downward movement of water or soils that are moderately fine to fine textured soils that have a slow infiltration rate Rate of water transmission is slow D Soils have very slow infiltration rate when thoroughly wetted chiefly clays that have a high shrink swell potential soils that have a high permanent water table soils that have a claypan or clay layer near the surface soils over nearly impervious material transmission is very slow INCLUDES AMENDMENTS THROUGH GPA 9401 NATURAL RESOURCES 9 T POWA Y COMPREHENSIVE PLAN GENERAL PLAN GROUNDWATER RESOURCES existed and grown on imported water In recent years it has been determined after the establishment of the poway that San Diego County s groundwater Municipal Water District resources are being depleted much faster than they are being recharged However some areas of the City are not This condition is called overdraft served by the community water system poway is no different than the rest of the The foothill and mountain areas of the County Geologic and soil conditions in eastern portion of the City must rely on Poway are not conducive to the groundwater pumped from wells to use replenishment of the limited groundwater for potable water and to irrigate supply that exists Therefore poway has agriculture primarily avocados TABLE VI 5 SOIL EROSION BY WATER SLIGHT MODERATE SEVERE Diablo Altamont 3 Ramona4 Placentia Redding 4 3 Redding3 0livenhain4 3 Fallbrook4 Vista1 San Miguel1 Exchequer1 Friant3 Escondid04 Slight rating indicates that water erosion is a minor problem and the soil is suitable for building sites or other intensive use if other factors are favorable Moderate ratings indicate that protective and corrective measures are needed before and during the time the soil is used Severe numbers indicate soil properties or qualities that affect erodibility 1 Slope 2 Surface layer texture 3 Depth to rock or hardpan or any layer that restricts permeability 4 Grade of structure within surface layer NATURAL RESOURCES 10 INCLUDES AMENDMENTS THROUGH GPA 9401 POWA Y COMPREHENSIVE PLAN GENERAL PLAN Due to the fact that Poway has limited providing water conservation offsets in means in which to recharge the existing development ground water that does exist the lack of community water service is considered a Finally the City has intensified its efforts deterrent to land development except for to gain the approvals necessary for very large lot residential uses as construction of its proposed water specified in the Land Use Element The reclamation facility see further City should continue to closely monitor discussion in the Public Facilities and regulate applications for land Element division development and construction in areas where wells will pump groundwater AIR QUALITYtoensurethatgroundwatersupply remains adequate poway is located in the San Diego Air WATER CONSERVATION Basin which has been designated as a non attainment area for a number of air The City of poway and all of San Diego pollutants including ozone carbon County relies heavily on imported water monoxide and suspended particulates supplies from the State Water Project The generation of air pollutants which and the Colorado River Our semi arid degrade the air quality and can pose a climate along with projected population significant health hazard are closely growth in the region necessitates that the linked to land use transportation and available water resources be used wisely energy use planning Daily vehicle trav and efficiently el from the suburbs to the employment centers of metropolitan San Diego is a The multi year drought which began in major contributor to air pollution in the 1986 has underscored the need for water region conservation and reclamation in order to ensure long term availability of adequate Ozone smog is the principal pollutant of water supplies poway has established concern in San Diego County because the Drought Assistance Response Team violations of carbon monoxide and DART to further the aims of nitrogen dioxide standards occur 0 conservation in the community The occasionally In 1990 San Diego County emphasis of this one year program is exceeded the federal ozone standard on community education and retro fit of 39 days and the state standard on 139 residential toilets showers and irrigation days This is a substantial improvement systems over the last decade when the federal standard was exceeded on 87 days in The City also plans to require all new 1980 and the state standard on 167 construction to minimize its demand for days Pollution transported from the Los water by including low flow fixtures Angeles basin is a major contributor to water conserving appliances and low these violations Two thirds of the volume irrigation systems and to work federal violations and about one half of towards no net increase in demand by the state violation are caused by pollution INCLUDES AMENDMENTS THROUGH GPA 9401 NATURALRESOURCES 11 POWAY COMPREHENSIVE PLAN GENERAL PLAN transport The California Clean Air Act atmosphere to form photochemical smog requires the South Coast Air Quality Reductions in NOx will also help the Management District to mitigate the region attain the state nitrogen dioxide impact of its emissions on violations in standard Carbon monoxide is primarily San Diego County emitted by motor vehicles Transportation Control Measures Air pollution is a regional problem and is developed pursuant to the Transportation primarily being addressed through the Control Measure Criteria will in state mandated Regional Air Quality coordination with California s new motor Strategy and through the Regional vehicle emissions standards help Growth Management Strategy Planning achieve the carbon monoxide standard that can reduce the overall vehicle miles as well as the smog and nitrogen dioxide traveled will also reduce the amount of standards generated air pollutants High demands for energy because of needless Most of the tactics evaluated require inefficiency also creates pollutants as a local implementation although some are by product of energy production While statewide measures adopted by the poway cannot solve the regional air California Air Resources Board to meet quality problem alone through California Clean Air Act mandates The appropriate land use transportation and scope is comprehensive ranging form energy use planning the City can large hilly boilers to household consumer contribute to the improvement of the products Tactics that can directly affect regional air quality the general community such as solar energy consumer products and backyard REGIONAL AIR QUALITY STRATEGY barbecues are included As required by RAQS the California Clean Air Act tactic In 1989 the Air Pollution Control Board evaluations include cost effectiveness established the Air Quality Strategy total emission reduction potential the Development Committee to provide rate of reduction implementation community input to the board and assist schedule technological feasibility the district in revising the regional air enforceability and public acceptability In quality strategy The committee has addition evaluations address impacts on reviewed 52 individual industrial and other resources and pollutants such a areawide control tactics Areawide natural gas electricity toxics and sources are small sources scattered substances that deplete the stratospheric across the county and their cumulative ozone layer impacts are significant Examples include space heating and air The baseline em SSlons of reactive conditioning household products and organic gases ROG from targeted charcoal lighter fluid The tactics focus industrial operations are 21 tons per day on reducing reactive organic gases Implementing tactics recommended in ROG and oxides of nitrogen NOx the the RAGS at maximum stringency would two pollutants that react in the reduce these emissions by ten tons per day or 48 percent NAruRAL RESOURCES 12 INCLUDES AMENDMENTS THROUGH GPA 9401 POWA Y COMPREHENSIVE PLAN GENERAL PLAN These industrial tactics will require service stations will further reduce paints adhesives and solvents with emissions associated with gasoline increasingly lower organic content storage and handling Reducing forcing manufacturers and users alike to emissions from stripping gasoline from work together to produce alternative contaminated soil and groundwater will formulations for all applications While help in the short term as older leaking significant reductions have been made in tanks are removed and replaced with coatings related emissions the tactics in more leak resistant tanks as part of the these areas will require further reductions statewide program to upgrade in some industries and affect some underground storage tanks specialty coatings Also higher efficiency application technologies will be Requirements for large petroleum based required reducing the coatings loss and solvent dry cleaning facilities would be excess emissions from overspray strengthened from the current 80 percent Cleanup operations will require the use control to 90 percent Also current of closed systems that maximize solvent requirements will be extended to smaller recovery and reuse thereby decreasing facilities The control of ethylene oxide solvent use and related emissions form sterilizer operations is being required as an air toxic control measure Manufacturing operations for fiberglass and will also reduce organic emissions will be affected as less polluting materials Controls on large commercial bakeries are required and transfer efficiency is will help reduce emissions associated increased Emissions form the with bread making operations which are manufacture of paint and ink can be currently uncontrolled reduced through improving manufacturing processes and control on filling The baseline emissions of reactive containers organic gases ROG from deodorants consumer products and small utility Alternative blowing agents or the addition engine controls which tactics are to be of control equipment such as carbon implemented by Air Resources Board absorbers or incinerators to limit and commercial charbroiling architectural emissions of volatile organic compounds coatings marine fueling operations and chlorofluorocarbons and methylene charcoal starter fluid are 38 tons per day chloride form the manufacture of Implementing all of these tactics would polystyrene polystyrene foam extrusion reduce these emissions by ten tons per polyurethane and other polymeric egg day or 27 percent These areawide cartons and packing material This tactic sources generally represent small widely will also reduce emissions of ozone dispersed activities Cumulatively the depleting chemicals large numbers of areawide sources contribute significantly to the region s air Controlling the decommissioning of both quality problem and controlling these large bulk gasoline storage tanks and sources must be considered particularly small underground storage tanks at in light of the Clean Air Act requirements for implementing all feasible measures INCLUDES AMENDMENTS THROUGH GPA 9401 NA7URALRESOURCES 13 POWAY COMPREHENSIVE PLAN GENERAL PLAN The Air Resources Board has already fuel docks are exempt from gasoline adopted statewide regulations providing vapor recovery equipment required for emission reductions from deodorants serve stations The tactic for marina consumer product and small utility refueling would extend the requirement engines Consumer product ranging for Phase II vapor recovery equipment to from air freshener to windshield washer these refueling operations fluid will be regulated to require alternative formulations The Air Strengthening architectural coatings Resources Board is continuing research requirements by using product on consumer products Emission reformulations similar to industrial tactics standards for categories not currently would provide further reductions from regulated will likely be considered by the painting homes and other structures Air Resources Board in the fall of 1991 The state program for small utility The baseline emissions of oxides of engines requires everything from chain nitrogen NOx from industrial operations saws and week whackers to ride along are 57 tones per day Implementing the mowers to reduce organic gas emissions tactics recommended in the RAGS would Some of the improvements will also reduce these emissions from 25 to 33 increase fuel economy tons per day or 44 percent to 57 percent The development of fuel cell technology Commercial charbroiling operations such would allow even further reduction to 61 as cooking operations at some fast food percent or 35 tons per day restaurants as well as other eateries are widespread Controls have been Oxides of nitrogen emissions are also installed on some restaurants in responsible for smog formation and the response to public complaints of smoke State Air Resources Board now requires and odor from charbroiling operations In reduction in these emissions contrary to addition these controls are also effective the past practice of focusing smog in reducing organic emissions occurring strategy solely on reactive organic gases when the fats draining form the meat are Stationary sources represent burned Extending these controls to approximately 15 percent of county wide charbroilers in general will provide emissions of this pollutant with most additional organic emission reductions coming from large electrical generating boilers and turbines In addition there In addition to emission reductions form are smaller scale boilers turbines and commercial charbroiling operations internal combustion engines that could emission reduction are possible from reduce emissions by means of advanced backyard barbecues By requiring less controls polluting charcoal starter and encouraging the use of alternatives the Several control measures including low contribution of starter fluid to the air excess air low NOx burners flue gas quality problem can be minimized recirculation urea injection selective atalytic reduction or selective non Current refueling operations at marina catalytic reduction have been evaluated NATURAL RESOURCES 14 INCLUDES AMENDMENTS THROUGH GPA 9401 POWAY COMPREHENSIVE PLAN GENERAL PLAN for large commercial and industrial tactics would reduce these emissions by boilers Combining some of these about three tons per day or 55 percent individual control technologies such as flue gas recirculation and 10w NOx Oxides of nitrogen emissions from burners will optimize emission reductions areawide sources can be reduced through improving products found in most Currently many small engines in the homes and small scale commercial County are exempt from permitting and buildings One tactic would require home control requirements Reducing the water heaters to be replaced with low exemption threshold to 50 horsepower NOx varieties already required and and requiring currently available controls marketed in the South Coast Air Basin will provide emission reductions Another would require these units be used in small scale commercial buildings Requiring the use of less polluting fuels using household type water heaters can also reduce oxides of nitrogen New homes would be constructed with emissions Allowing the use of only these units and units in existing homes natural gas or methanol would provide would be replaced with the less polluting emissions reductions Also requiring the models when existing units are no longer installation of fuel cells to replace aging serviceable electrical generating equipment is a long term technology forcing measure that The Air Resources Board requirements shows great promise for enormous for controls on small utility engines will reductions also reduce oxides of nitrogen emissions This will reduce the contribution of One tactic would limit emissions from all commercial as well as common new and existing stationary combustion household utility equipment to the equipment to no greater than emissions region s smog Interim standards are to from burning gaseous fuel such as be met 1994 and can be met with minor natural gas or liquefied petroleum gas changes to existing engines More This tactic would have the effect of stringent standards representing a 60 to banning liquid and solid fossil fuel 70 percent reduction from interim However if a source is adequately standards are set for 1999 controlled it could use any fuel Another tactic would require the exclusive use of The baseline emissions of oxides of methanol or substitution of methanol for nitrogen NOx from sources such as diesel fuel in stationary gas turbines and pool heaters water heaters and space utility electrical generation Using both heaters for homes are seven and three methanol and conventional fuels to co quarter tons per day Implementing fire large boilers is also feasible recommended tactics would reduce these emissions by about three tons per day The baseline emissions of oxides of or 30 percent nitrogen NOx form areawide sources such as water heaters are five and one Energy related control measures provide third tons per day Implementing these the added benefit of reducing energy use INCLUDES AMENDMENTS THROUGH GPA 9401 NATURALRESOURCES 15 POWA Y COMPREHENSIVE PLAN GENERAL PLAN TABLE VI6 VEGETATION HABITAT TYPES IN THE CITY OF POWAY of Type Acres Total Characteristics Coast Live Oak Woodland 285 1 Coast live oak with a poorly developed shrub layer of toyon currant laurel sumac and desert elderberry North facing slopes shaded ravines or intergrading with coastal sage scrub or mixed chaparral Southern Coast Live Oak 352 1 Coast live oak with an understory of toyon Riparian Forest California wild rose desert elderberry poison oak and mugwort Bottomlands and outer floodplains along streams Southern Cottonwood 2 1 Cottonwood and several species of willows with Willow Riparian Forest an understory of sandbar willow mulefat and mugwort Along perennially wet streams Southern Willow Scrub 60 1 Black willow arroyo willow large leaf willow lance leaf willow and sandbar willow with scattered cottonwoods and sycamores May represent a successional stage leading to riparian woodland or may be stable Loose sandy or fine gravelly alluvium deposited near stream channels Mulefat Scrub 52 1 Mulefat dominated scrub along intermittent streams with coarse substrate and deep water table May represent a successional stage or may be stable Freshwater Marsh 4 1 Bulrushes and cattails in permanently flooded wetlands Disturbed Floodplain 23 1 Open patchy stands of southern willow scrub and mulefat scrub along the western portion of Beeler Creek NATURAL RESOURCES 16 INCLUDES AMENDMENTS THROUGH GPA 9401 POWA Y COMPREHENSIVE PLAN GENERAL PLAN of Type Acres Total Characteristics Open Water 69 1 Lakes ponds reservoirs Coastal Sage Scrub 8 269 30 California sagebrush flaMop buckwheat laurel sumac and white sage Dry sites such as steep south facing slopes or clay rich soils About 1 m in height Chaparral 6 249 23 Chamise mission manzanita California lilac mountain mahogany toyon and scrub oak Dry slopes and ridges at low and medium elevations About 1 3 m in height Coastal Sage 95 1 Post fire successional community with equal Chaparral Scrub amounts of sage scrub and woody chaparral species Slopes bordering Poway Creek Stipa Grassland 2 1 Dense stands of purple needlegrass with brome grasses blue eyed grass mariposa lily and clarkia Fine textured clay soils Nonnative Grassland 662 2 Slender wild oat ripgutgrass red brome soft chess red stem filaree and talWeed Disturbed areas old fields and openings in native scrub habitats May have replaced native grassland or coastal sage scrub Eucalyptus Woodland 32 1 Dense stands of gum trees Along drainages and disturbed areas Disturbed Habitat 3 811 14 Russian thistle tumbleweed sweet fennel horseweed mustard lamb s quarters fountain grass and castor bean Altered areas vacant lots roadsides and abandoned fields Agricultural Areas 838 3 Actively cultivated lands fallow lands and nursery operations Developed Areas 6 360 23 No native vegetation man made structures and roads INCLUDES AMENDMENTS THROUGH GPA 9401 NA 1URALRESOURCES 17 POWA Y COMPREHENSIVE PLAN GENERAL PLAN through improvements in product Environmental and Energy Services Co efficiency thereby further reducing to prepare a detailed biological emissions and dependence on imported assessment containing current fuel Solar energy can provide all the quantitative information on biological energy needed for swimming pool resources within the City and its adopted heating and more than half the energy sphere of influence The objective of the needed for heating domestic hot water study was to coordinate long range hot tubs and spas One series of solar planning goals with the preservation of energy tactics would require all new biologically effective open space The homes swimming pools hot tubs and report and associated maps resulting spas be equipped with solar water from that study are the main source of heating systems New commercial information for the updated Plant and buildings would also be required to install Animal Resource Conservation element solar water heating systems The of the General Plan The complete second series of solar energy tactics detailed biological assessment is would require solar water heating contained in the Master Environmental systems be installed on current homes Assessment MEA volume of the poway pools hot tubs and spas when the Comprehensive Plan homes are sold The major vegetative community types Heat pumps can also help reduce include chemise chaparral grassland emissions and energy demand for space southern mixed chaparral agriculture and heating by pulling heat from outdoors oak woodland Coastal sage scrub and using it to heat indoors rather than comprises nearly 50 percent of the burning fuel to provide the heat One vegetation in Poway Table VI 6 tactic would require heat pumps be delineates the extent of the vegetative installed in new homes in lieu of natural communities in Poway In terms of gas fired central furnaces A companion relative value the creekside oak tactic would require heat pumps be woodland areas are particularly installed in existing homes when significant because even though they furnaces are replaced I comprise the least overall area they J sustain the greatest variety of plant and BIOLOGICAL animal life 1 RESOURCESrt V y L i 0 Other important aspects of plant life in o poway are trees particularly large stands The physiography and climate of Poway of trees Trees are very important to sustains a variety of plant and wildlife Poway s rural character the California resources These resources are an Live Oak is displayed on the City s seal important part of Poway s rural character Other significant trees in poway are the and should be preserved sycamores and eucalyptus Eucalyptus trees are introduced species many of As part of the 1990 91 General Plan which were planted years ago as update program the City retained ERC windbreaks Their preservation should NATURAL RESOURCES 18 INCLUDES AMENDMENTS THROUGH GPA 9401 Resolution No 95 096 Page 5 B 1 Goal IX Policy A City Water System Strateoy 6 shall be amended by theadditionofthefollowinolanouaoe The extension of the City water system into the rural residential areas of the Resource Conservation Area as defined in the adopted Poway Subarea Habitat Conservation Plan and companion Implementing AgreementdocumentsshallbecooperativelyplannedamongtheCityUSFishand Wildlife Service California Department of Fish and Game and involved residents and property owners to achieve the conservation objectives and requirements of the subject Plan and companion Agreement C Transportation Element 1 Goal XII Policy A Planning Strateoy 9 shall be added to read as follows 9 The development of public streets public and I3ri ato rcsidcAlial reads and OaElOfficnts scenic roadways trails and pedestrian routes shall comply with the adopted Poway Subarea Habitat Conservation Plan and companionImplementingAgreementandtherequirementsthereofincludingtheLand Use and Management Compensation Mitigation Strategy Mitigation Ratios and Special Development Requirements Compliance shall also be required for regional transportation improvements and other land use development undertaken by other public agencies and surrounding jurisdictions D Natural Resources Element 1 The Biological Resources section of the Natural Resources Element current pages 16 through 25 up to OPEN SPACE and pages 5355 including text tables Policy C and strategies shall be rcplaecd egQme with the adopted PowaySubareaHabitatConservationPlanandcompanionImplementingAgreement documents These documents shall be fully incorporated by reference as a separately bound appendix including the Final Joint NEPAlCEQA document Ihe followina brief introduction shall be included after the existina ina of Biolooical Resources On August 15 1995 the City of PowaylPoway Redevelopment Agency CityadoptedthePf1N8YSubareaHabitatConservationPlanlNaturelCommunityConservationPlanPowaySubareaHCPandthecompanionImplementingAgreementIAdocumentsThesubjectdocumentswereadoptedtocomply Resolution No 95 096 Page 6 with the requirements of the State of California Natural CommunityConservationPlanningNCCPActof1991theNCCPProcessand Conservation Guidelines NCCP Guidelines as adopted in November 1993 by the California Department of Fish and Game CDFG in collaboration with the U S Fish and Wildlife Service USFWS and the USFWS Federal Endangered Species Act Section 4 d Special Rule for the threatened California gnatcatcher which is incorporated into the NCCP Guidelines The City has received long term permits from USFWS and CDFG which allow for the incidental take of Federal and State listed plant species wildlife species and their habitats Such long term permits will apply to @JJ public I 1I and t9 private development projects ere1pvaArCfrTvWJw M rftEffJ4IG2tltll0tirftiiYiJlit9oweuareaAancampanaaJmec t rparocfrf 1y f5 yi o df r 13 1f ag i 1icra cf pm fftpl6 J mere SIch projects GOFllply with the requircmcnts of tho subject GOGIoJFlIents including the Compensation Mitigation Strategy Mitigation Ratios and Special Development Requirements includingThesedocuments the approved environmental review NEPAlCEQA documents are separately bound as an appendix to the Natural Resources Element 2 Goal XII Policy A Planning Strateov 4 shall be amended by the addition of the followino lanouaoe The City shall encourage the neighboring County of San Diego and City of San Diego jurisdictions to cooperatively develop and adopt s bregional and subarea habitat conservation plans which are consistent with and foster the implementation of the adopted City of Poway Subarea Habitat Conservation Plan and companion Implementing Agreement documents All necessary clerical changes shall be made to the general plan to make its text consistent with the terms of this resolution APPROVED and ADOPTED by the City Council of the City of Poway State of California this 15th day of August 1995 0L J dL r Susan Callery Deputy MayOr ATTEST haL i I I t Ma orie K Wahlsten City Clerk POWAY COMPREHENSIVE PLAN GENERAL PLAN be encouraged where appropriate to Diegan coastal sage scrub chaparral a maintain and enhance Poway s rural coastal sage scrub chaparral mix and character Stipa grassland All of these native communities are considered sensitive poway also provides the habitat for an except chaparral which is considered increasing number of rare or endangered sensitive when it supports sensitive plant species These plants were species provides significant wildlife abundant in past years however their habitat value or serves as a wildlife numbers have greatly diminished as a movement corridor Native vegetation result of changes to and deletion of their communities including large tree stands habitat To preserve these species the are very important to Poway s rural City should protect the threatened character as reflected on the City s seal sensitive rare or endangered plants in Poway against unnecessary poway also provides habitat for 33 encroachment sensitive threatened and endangered plant species as identified in the MEA It is not uncommon in Poway to see These plants were abundant in past wildlife roaming the City Poway s rural years however their numbers have been character and large areas of untouched greatly diminished as a result of changes open space have retained a variety of to and loss of their habitat Plant species wildlife within the City limits This are designated as sensitive because of experience exists in few cities today their overall rarity endangerment unique Poway s wildlife are considered an habitat requirements and or restricted important part of the City in the Country distribution In general it is a atmosphere combination of these factors that leads to a sensitivity designation Sensitive plant PLANTS AND VEGETATION species include those listed by the U S Thirteen native vegetation communities Fish and Wildlife Service California were mapped within the study area Department of Fish and Game and Table VI 6 In addition introduced or California Native Plant Society The nonnative communities such as CNPS listing is sanctioned by the CDFG nonnative grassland and eucalyptus and serves as its list of candidate woodland were also delineated as were species A table of potentially occurring disturbed habitat agricultural areas sensitive plant species in the poway area developed areas and larger bodies of is included in the MEA open water Native vegetation communities include coast live oak Biological Resources Overlay maps woodland southern coast live oak scale 1 200 are on file in the Planning riparian forest southern cottonwood Services Department and should be used willow riparian forest southern willow as a guide in the City s initial scrub mulefat scrub freshwater marsh environmental review process However alkali marsh disturbed floodplain San these maps are not a substitute for Diego mesa hardpan vernal pools site specific project review by a qualified biologist Detailed biological surveys INCLUDES AMENDMENTS THROUGH GPA 9401 NATURALRESOURCES 19 T POWA Y COMPREHENSIVE PLAN GENERAL PLAN should be conducted for all proposed value of these areas has already been projects including associated identified and they have already been infrastructure that occur within the protected to some extent they logically sensitive areas delineated on the serve as the foundation for a City wide overlays or within areas that have the system of reserves and wildlife corridors potential to support sensitive resources Surveys and associated reports should In keeping with Poway s rural character be consistent with the County of San and as a buffer from encroaching Diego Guidelines for Biological Surveys development from the surrounding and should be conducted at the communities of San Diego Santee appropriate time of year for detecting Ramona Lakeside and other population sensitive plant species and breeding growth and expansion in the County it birds and should assess biological would be desirable for the City of poway resources with respect to regional wildlife to acquire designate and maintain corridors Surveys should also include connected large areas of undisturbed areas immediately adjacent to the natural communities as an open space proposed development site to consider green belt around the City and to serve offsite direct and indirect impacts of the as preserves for plant and wildlife project conservation These areas would also serve to allow movement of wildlife Important Biological Resource Areas populations both within the City and to areas outside the City thereby Biologically important resource areas are maintaining biological diversity and those areas that have been identified as protecting self sustaining populations of supporting or potentially supporting sensitive species sensitive biological resources i e habitats plants or animals and or that The City should also seek to control are large enough in area to support development design in the significant wildlife populations The environmentally sensitive coastal sage biological value of these areas is often scru b habitat areas and in large increased and or enhanced by proximity expanses of chaparral The following to protected open space areas Some of guidelines should be used to evaluate these areas in poway have some degree projects in these areas for approval of legal protection from development or other adverse activities Conserve as much existing contiguous area of native Important biological resource areas are communities as feasible while identified in the MEA and include protecting the remaining areas from Resource Conservation Areas RCAs highly impactive uses parks wilderness areas ecological reserves designated open space areas Minimize fragmentation or separation the San Dieguito River Valley Regional of existing contiguous natural areas Open Space Park and lands linking these important areas Because the biological NATURAL RESOURCES 20 INCLUDES AMENDMENTS THROUGH GPA 9401 POWAY COMPREHENSIVE PLAN GENERAL PLAN Maintain connection of existing Regional Open Space Joint Powers natural areas with each other or open Authority space areas to maintain local and regional wildlife movement corridors Priority areas for future acquisition and or as identified in the Detailed Biological protection include but are not limited to Assessment areas within the boundaries of the Maintain the broadest possible San Dieguito River Valley Regional configuration of natural habitat area to Open Space Park aid dispersal of organisms within the habitat unprotected lands within and between designated Resource Conservation Where appropriate based on Areas as identified in the MEA community character and design cluster residential or other uses near riparian habitat and large coastal the edges of the natural areas rather sage scrub buffers along Green than dispersing such uses within the Valley Thompson and Sycamore natural areas creeks Where significant yet isolated habitat lands linking the former BLM open areas exist design development to space parcels on the City s eastern preserve and protect them boundary with each other and with the wilderness area around Lake Conserve the widest variety of poway vegetation and physical conditions onsite to maintain the highest level of lands serving as wildlife corridors habitat diversity and through Rattlesnake Canyon Warren Canyon Beeler Canyon the eastern Consider adjacent uses and location end of poway Creek and the northern in project design to maximize tributary of poway Creek conformance to these guidelines coastal sage scrub habitat around The City acquired large areas of land and between Twin Peaks and Van along its eastern border from the Bureau Dam Peak north of Beeler Creek of Land Management BLM in 1986 north of Lake poway and Espola which are intended both as resource Road south of Highland Valley Road conservation areas and as buffers from and along the northern end of development in adjacent communities It Pomerado Road these areas support has since participated in the acquisition important populations oflhe California and preservation of the Blue Sky Ranch gnatcatcher and the joint acquisition of the Goodan Ranch with the City of Santee and lands linking open space areas within County of San Diego The City is also a Poway to open space areas in the member of the San Dieguito Valley region such as the Sycamore Canyon County Park INCLUDES AMENDMENTS THROUGH GPA 9401 NATURALRESOURCES 21 POWA Y COMPREHENSIVE PLAN GENERAL PLAN WILDLIFE zones are more species rich than Poway s rural character and large areas chamise chaparral and support more of undisturbed open space have retained wildlifebut that does not necessarily a variety of wildlife within the City This infer that the removal of chamise experience exists in few cities today chaparral would not be detrimental to the Poway s wildlife is considered an continued support and existence of important part of the City in the Country wildlife on a regional level This atmosphere discussion implicitly refers to habitat connectivity which is of the utmost In general the regions of highest wildlife importance in the maintenance of viable value are present in the southern wildlife populations eastern and northern sections of the City The western portion of the study areaanditsadoptedsphereofinfluence These sections possess a diversity of has the lowest relative wildlife value in habitats including Oiegan coastal sage the study area indicating the extreme scru b southern mixed chaparral patchiness and disturbance of habitat chamise chaparral riparian woodland The southern portion of the study area is and scrub oak woodland and exfoliating rapidly being degraded but is an granito diorite boulder fields important area that should be preserved in order to maintain a connection to Los In terms of species richness each of Periasquitos Canyon and the coast these habitats has species that are either Within this area Beeler Creek should be specialists in a specific habitat e g the focal point in any effort to maintain California gnatcatchers in certain phases such a connection The northern and of Oiegan coastal sage scrub or prefer eastern portions of the study area have one habitat type over another even the highest wildlife values reflecting the though they are not restricted to any presence of extensive tracts of particular habitat e g orange throated high quality open space encompassing whiptail which prefers open Diegan several sensitive habitat types and the coastal sage scrub but is not restricted to connection of these habitats with it In addition there are wildlife species continuous open space habitat outside such as mountain lion bobcat and mule the study area Representative key deer that utilize all the habitat types in areas include but are not limited to their normal activities i e foraging and Green Valley Sycamore and Thompson patrolling territories creeks including large tracts of adjacent coastal sage scrub habitat the entire Because of this variety in wildlife habitat north south mountain range along the specialization and because habitats eastern boundary of the study area intergrade throughout the Poway area Rattlesnake Canyon Warren Canyon wildlife habitat value cannot be assessed the eastern end of poway Creek and solely on a habitat by habitat basis The Lake poway and its adjacent upland habitats present in poway can be ranked habitat by overall species diversity e g riparian NA TURAL RESOURCES 22 INCLUDES AMENDMENTS THROUGH GPA 9401 POWA Y COMPREHENSIVE PLAN GENERAL PLAN The study area is rich in valuable wildlife sphere of influence provide a critical link habitat Development in the south and between wildlife populations on its north are reducing this value albeit only urbanized western boundary with minimally at the current time However populations and habitats on the relatively continued development will decrease the undeveloped eastern boundary wildlife habitat value perhaps to a Similarly City lands link the San Dieguito significant level Reduction in habitat River Valley on the northern border of value can be kept to a minimum if the poway with large open space areas on key wildlife areas are maintained intact the south and connected to each other as well as to open space habitat outside of Poway The MEA identifies a system of regional through a system of corridors wildlife corridors within the Poway area that 1 connect areas of open space The City of Poway supports 53 species within the City thereby maximizing the of sensitive wildlife species including 3 wildlife habitat value of these areas and invertebrates 1 amphibian 8 reptiles 35 2 provide essential links in a region wide birds and 6 mammals These are system of wildlife corridors Such a species listed by the U S Fish and wildlife corridor system can be Wildlife Service California Department of maintained by protecting lands along a Fish and Game and Audubon Society north south and an east west corridor The USFWS and CDFG officially list through the area The north south sensitive species as either threatened or corridor is designated below as the San endangered and unofficially recognizes Dieguito River Sycamore Canyon many other species as candidates for corridor while the east west corridor is listing referred to as the I r 0 n Mountain Peiiasquitos Corridor The USFWS is currently evaluating a formal proposal for the listing of the San Dieguito River Sycamore Canyon California gnatcatcher as an endangered Corridor This corridor links the open species poway supports a large space areas that form the eastern regional population center of California boundary of the study area from the gnatcatchers with major subpopulations southern slopes of the San Dieguito occurring in coastal sage scrub habitat River Valley to the County parks and north of Lake poway and Espola Road Navy lands south of Poway Much of along the northern end of Pomerado this corridor is already in public Road between and around Twin Peaks ownership including the former BLM and Van Dam Peak and north of Beeler lands and the Blue Sky Ecological Canyon A list of other potentially Reserve Substantial portions of the occurring sensitive animal species in the privately owned lands along this corridor project area is included in the Detailed are constrained by slopes of greater than Biological Assessment 25 percent Land acquisitions are recommended to bridge gaps in this Wildlife Corridor System corridor Lands within the City of poway and its INCLUDES AMENDMENTS THROUGH GPA 9401 NA7URALRESOURCES 23 POWAY COMPREHENSIVE PLAN GENERAL PLAN A critical function of this corridor is to chains of mountains that run north and provide a link in the regional California south of the Santa Maria Valley gnatcatcher population Significant Ramona These connections are populations of gnatcatchers exist to the outside of the poway sphere of influence northwest in Camp Pendleton and however a poway corridor system plays Carlsbad La Costa The poway area an important role in conducting wildlife links these northern populations to through the Poway area to points west populations farther south i e Fanita Ranch Miramar and Mission Trails Park Most significant in this regard is Los via the San Dieguito River Valley An Penasquitos Canyon Los Penasquitos important link to the San Dieguito Valley Canyon and the adjacent Del Mar Mesa occurs through the Green Valley Creek are the most significant areas of coastal riparian strip Green Valley Creek flows open space south of Camp Pendleton out of the Blue Sky Ecological Reserve These areas are surrounded on the north and courses northwestward to the San and south by dense urbanization North Dieguito Valley Riparian vegetation City West and Mira Mesa The only along these drainages is mostly intact connection of Los Penasquitos Creek to and bordered by Diegan coastal sage additional open space is to the east scrub along most of their lengths These through southern Poway The drainage creeks and adjacent uplands should be splits in poway into Poway Creek and preserved as part of the San Dieguito Beeler Canyon both of which originate in River Sycamore Canyon Corridor the rugged hills southwest of Iron Mountain Iron Mountain Penasquitos Corridor This corridor includes the slopes The poway Creek drainage is already southwest of Iron Mountain Beeler heavily urbanized and holds little Canyon and the fragments of open potential as a wildlife corridor space on the mesa between poway and Conversely Beeler Canyon is less Beeler creeks It provides east west developed and can still support wildlife linkage of the mountainous regions east movement Sections of Beeler Creek are of the study area and the coastal highly disturbed particularly the area just lowlands and river valleys to the west upstream of its junction with Poway This corridor also provides links to the Creek and in the vicinity of the CalMat patches of California gnatcatcher habitat quarry Additional upland buffer should in the western part of the City ie Twin be provided to facilitate animal Peaks and Van Dam Peak movement through these bottlenecks This corridor intersects with the San A connection to the mountains may be Dieguito River Sycamore Canyon important for many wildlife species Corridor in the southeast corner of the present in the lowlands Many species of City The mountainous areas that form moths butterflies and birds have the eastern boundary of the poway area populations in both areas Maintenance are adequately connected to the larger of east west corridors will facilitate mountain systems to the east via the NATURAL RESOURCES 24 INCLUDES AMENDMENTS THROUGH GPA 9401 POWAY COMPREHENSIVE PLAN GENERAL PLAN movement between populations and Dam Peak is approximately 1100 acres promote genetic exchange in size and supports roughly 15 20 pairs of California gnatcatchers Although Los Penasquitos Canyon and Del Mar Mesa presently support both A number of patches of privately owned mountain lions and mule deer these dedicated open space occur along the populations are not expected to persist north and south slopes of the mesa indefinitely given their present isolation between Beeler and poway creeks and proximity to urban areas However These patches are roughly 50 100 acres many other less sensitive mammal in size and adjacent patches are no more species including bobcat should persist than 1800 ft apart These patches can in this selling and a protected connection serve as stepping stones enabling to larger populations to the east is immigration between the gnatcatcher important population on Van Dam Peak and those in the expanse of Diegan coastal sage Movement of wildlife from Iron Mountain scrub to the east and areas to the east into the study area is inhibited by Highway 67 The only Another set of small patches of dedicated topographically defined corridor that open space between Van Dam and Twin crosses the highway is a riparian strip Peaks may serve as stepping stones bordering the northern tributary of Poway between those areas These patches Creek approximately 0 12 mile south of should be considered for acquisition as Iron Mountain Drive Unfortunately there part of the Iron Mountain Periasquitos is no bridge or underpass at this Corridor Although it is not yet known crossing so large mammals have to whether gnatcatchers will cross the traverse the four lane highway heavily urbanized areas between these Retrofitting this crossing with an patches the inclusion of these stepping underpass would greatly facilitate wildlife stones can only increase the likelihood movement of this type of movement Twin Peaks and Van Dam Peak are OPEN SPACE islands of steep Diegan coastal sage scrub habitat in the western portion of The vast amount of open space land intheCityBothpeaksareisolatedfromPowayrepresentsasignificantpartoftheotherhabitatbyurbanareasaridruralcharacteroftheCityThehighwaysThisisolationreducesormountainsthatsurroundtheCitytheeliminatestheirvalueashabitatforcreeksthatcrossthevalleyfloorandthesensitiveortargetmammalspeciesbutagriculturalareasremindusofPoways not for gnatcatchers Due to access beginnings each is an integral part of theconstraintsgnatcatchersurveyswerenotrurallifestyleconductedintheapproximately1300 acres of sage scrub habitat on Twin Peaks although small patches of scrub nearby do support gnatcatchers Van INCLUDES AMENDMENTS THROUGH GPA 9401 NATURALRESOURCES 25 POWA Y COMPREHENSIVE PLAN GENERAL PLAN There are five major areas of open space The creeks and channels that cross the within the City They are the valley floor should be preserved for undeveloped areas to the north east aesthetic biological and public safety and south the creek areas the reasons From the aesthetic standpoint agricultural areas the public and private the creeks and the vegetation that grows open space land such as parks and around them contribute significantly to wilderness areas and significant the rural character of the City To the archeological and historical sites biological communities the creeks and preserved from the past wetlands represent a significant riparian environment providing a source of food The undeveloped open space lands that water and shelter A variety of surround the poway Valley comprise indigenous rare endangered and approximately 50 percent of the total City diminishing plant and animal species land area Most of this area is in open thrive within these areas providing a non space because of its biological renewable resource that must be significance topography the lack of preserved adequate public services and the lack of adequate access These vacant lands In regard to the public safety value of the also harbor a significant quantity of the creeks and channels Poway s flood City s biological resources where plant control depends primarily on natural and animal species can remain virtually channels rather than improved concrete undisturbed The open space lands channels poway must keep the creeks represent an area of significant scenic and channels open and unencumbered value because of the numerous hills and to reduce the chance of loss to life and mountains such as Iron Mountain Mt property Woodson Goat Peak and several unnamed hills poway began as a farming community over 100 years ago and some of the An important component of the agricultural areas still remain Today Resources Element is the protection of avocado and citrus orchards are seen as the mountains and hillsides Their the remaining form of agriculture While preservation in large parcels greater than the City does not encourage the 20 or 40 acres will serve to 1 preserve expansion of agricultural uses across the the biologically significant habitat of mountainsides it recognizes the need to these areas 2 preserve the scenic value protect the current investments that and enhance the rural character of individuals have made and market Poway and 3 preserve the integrity of demand for the product Over time it is larger parcels thus avoiding a expected that some of the agricultural fragmented land use pattern which areas may be converted to very low places greater demands on public density rural residential The General services When not preserved through Plan however does encourage the open space the development of hillsides combination of agricultural and rural should be restricted to preserve the residential uses as is now developed in natural appearance of the landform High Valley and parts of Green Valley NATURAL RESOURCES 26 INCLUDES AMENDMENTS THROUGH GPA 9401 POWAY COMPREHENSIVE PLAN GENERAL PLAN Public and private recreation and Open Space The report is an element wilderness areas represent a majority of of the Regional Open Space Plan which the designated open space within the will be prepared in phases Subsequent City Through the years the City has phases will present 1 criteria for developed an extensive public park and evaluating preservation techniques 2 recreation system To meet the growing institutional arrangements for acquiring and varied needs of the community the and managing open space and 3 means City proposes to increase the number of of financing open space activities active and passive recreational areas within the various neighborhoods and The report describes four major progressively increase the wilderness components of the Regional Open Space area through the acquisition and Plan as follows dedication of biologically sensitive habitats hillsides and ridgelines located 1 Reqion Defininq Ooen Soace The throughout the City Previously the City major undeveloped areas along the acquired approximately 1 900 acres on border of San Diego County define the City s eastern perimeter from the and separate it from other regions Federal Bureau of Land Management The first impression upon entering These 1 900 acres in conjunction with the San Diego region should be the the Blue Sky Ranch and Lake poway feeling of openness and a break in and Rexrode Wilderness have created continuous urbanization an approximately 3 000 acre regional recreation wilderness area which contain 2 Natural Resource Areas Certain a variety of active and passive undeveloped areas should be recreational opportunities preserved in their natural state because of their environmental Although limited in number private quality or sensitivity and overall value recreation golf swim and tennis soccer to the region These areas include and equestrian clubs also provide steep slopes floodplains and significant open space areas within the wetlands Other resource categories community and their continued use is should be added when sufficient encouraged These private facilities and information is available to identify the City s developed park and recreation their locations and extent facilitiesare designated Open Space Recreation OS R in the Land Use All jurisdictions in the region should Element and are discussed in the Public have generally consistent policies for Facilities Master Element Amended per preserving these natural resources in GPA 93 01A a comprehensive and coordinated manner This action will assure that REGIONALLY SIGNIFICANT OPEN adequate quantities of diverse SPACE habitat types are maintained and that In February 1991 SANDAG issued a the plants and animals found in report defining Regionally Significant these habitats are less likely to become endangered INCLUDES AMENDMENTS THROUGH GPA 9401 NATURALRESOURCES 27 POWA Y COMPREHENSIVE PLAN GENERAL PLAN 3 Reaion Servina Open Space The SANDAG report concludes that a Numerous areas are lightly uniform ordinance is not required as long developed with activities or facilities as a more consistent approach to steep that serve the region as unique or slopes is followed It recommends that outstanding recreational safety or each agency include the following managed production agriculture element in ordinances which address mineral extraction areas These steep slopes areas should be retained as open space and in some cases increased 1 Intent Include a statement to serve the region s expanding indicating that steep slopes are needs considered sensitive lands and that the topography and native vegetation Additionally corridors of open space should be preserved within and between communities should be retained in order to 2 Definition of Steep Slopes Use a provide identity and a sense of definition indicating that steep slopes community and to link significant are those with 25 percent or more open space areas natural gradient The minimum height of slopes to be reviewed 4 Rural Lands Areas outside the should be 25 feet and the minimum identified urban area should be amount of excavation to be reviewed planned to remain in a low intensity should be 200 cubic yards these rural land use pattern These areas two are optional criteria to determine provide a contrast to complete the threshold for review urbanization and result in the visual appearance and feeling of more 3 Gradina Grubbina and Clearina All openness in the region grading grubbing removal of plants and their roots and clearing should Steep Slopes The Regionally be regulated and a permit included Significant Open Space Definition in the local Grading Ordinance describes steep slopes or hillsides as should be required whether or not those lands having a slope of 25 percent development is proposed to follow or more These areas are typically This provision should protect susceptible to erosion in the rainy season sensitive biological resources as well and to wildfire in the summer and fall In as avoid erosion addition steep slopes can have a very positive visual impact if they are left Clearing required by the appropriate undeveloped They tend to be more agency for public safety purposes prominent than an equal area of flat land should either be exempt or allowed and give a greater impression of to have an expedited permit without openness Major ridgelines that are a fee Such clearing should be visible from significant view corridors or limited according to specified vista points are of particular importance standards to avoid resource loss NAruRAL RESOURCES 28 INCLUDES AMENDMENTS THROUGH GPA 9401 POWAY COMPREHENSIVE PLAN GENERAL PLAN 4 Zonina Lower density zoning should area of the steeper slopes This be adopted to recognize steepness approach should reduce erosion of slopes and reduce environmental restore the appearance of the natural damage slope and conserve water 5 Hillside Review Hillside review D An open space easement low policies or guidelines should be density zoning or other restriction adopted with the specific should be applied to the remaining requirements to be determined by undeveloped area of steep slopes the local agency Review of cut and This requirement is necessary to fill slopes should recognize ensure that no further grading or protection of the visual aesthetic and construction will take place on the environmental value as well as steep slopes in the future engineering requirements A landscape ordinance or manual may E A penalty for grading clearing or be useful to explain more fully the other violation should include a planting and irrigation requirements significant fine and or grounds for on disturbed slopes denial of a discretionary permit for a specified time This penalty is The report further suggests that specific required to ensure that proponents of requirements which should be included in development will follow the the Hillside Review are appropriate process A Design Guidelines should be poway currently has policies and or prepared to show examples of ordinances in place which conform to appropriate development Undulating items 1 2 4 and 5 above An ordinance contour grading should be used to to regulate grubbing and clearing is eliminate the sharp edges and to currently being prepared restore the natural appearance of the manufactured slope Ridgelines and Floodplains During the 1960s a prominent viewsheds should be number of federal programs were protected by setbacks and other established to provide flood insurance design features and disaster assistance at the same time the natural and beneficial values of B Encroachment into the steep slopes floodplains and the wetlands that occur 25 should be limited to there were recognized All federal minimize disturbance of the natural agencies were directed to avoid to the area Exemptions should be allowed extent possible the long and short term for specific uses for example roads adverse impacts associated with the shown on the General or Community occupancy and modification of Plan floodplains and to avoid direct and indirect su p po rt of floodplain C Landscaping of the manufactured development wherever there is a slopes should blend into the natural practicable alternative INCLUDES AMENDMENTS THROUGH GPA 9401 NATURALRESOURCES 29 POWAY COMPREHENSIVE PLAN GENERAL PLAN The SANDAG report recommends that all least periodically the land of the region s agencies adopt supports predominantly ordinances similar to those in force in the hydrophytes 2 the substrate is County of San Diego City of San Diego predominantly undrained hydric or City of Encinitas Figure IV 3 shows soil and 3 the substrate is the various floodplain encroachment nonsoil and is saturated at some schematics followed by San Diego time during the growing season County The cities ordinances more of each year severely limit the development permitted in floodplains by disallowing filling except The report suggests that in order to for very few uses For examples in San provide increased protection for wetlands Diego filling is allowed only for roads the following should be regulated by the shown in an adopted community plan local jurisdictions brushing clearing and utilities low intensity recreation and sand grubbing agricultural use grazing and gravel extraction with a conditional discing draining ditching and herbicide use permit Channelization is permitted use In addition it recommends that an only for water supply projects public appropriate buffer be provided around safety and protection of existing remaining wetlands development or to protect fish and wildlife A buffer of 25 feet is required adjacent to any permitted flood channel Wetlands The report identifies several categories of priority wetlands including salt marshes freshwater marshes wetland flats riparian wetlands and vernal pools Of these poway has creeks which fall into the riparian wetland category and one site which has unprotected vernal pools of limited quality The report recommends the acceptance by the region of the U S Fish and Wildlife Service definition of wetlands Wetlands are lands transitional between terrestrial and aquatic systems where the water table is usually at or near the surface or the land is covered by shallow water For purposes of this classification wetlands must have one or more of the following three attributes 1 at NATURAL RESOURCES 30 INCLUDES AMENDMENTS THROUGH GPA 9401 Figure VI 3 SAN DIEGO COUNTVFLOODPLAIN MANAGEMENT Unincorporated Areas FLOODPLAIN ENCROACHMENT SCHEMATICS I FlOOOI LAIN IIUDYEMFLOOOPLAINLEVEL 10 YCA FLOODPLAIN LEVEL GROUND FLOODPLAIN NATURAL STATE 100 YEA FlOOlJPLAIN FRINGE I rLQODWAY I FR NGEII r 0 2 I FLOODWAY LEVEl c Q G 10 YEAR flOOD LEVEL FILL 100 YEAR GROUND FLOODPLAIN LEVEL FLOODPLAIN ENCROACHMENT MAXIMUM PERMITTED ON FIVE MAJOR RIVERS 100 YEA FLOODPLAIN FRINGE I FlOODVAV I FR NGE FlOOllWAY LEVEL 10 yEAR FLOOU LEVEL Fill GROUND 100 YEAR FLOODPLAIN LEVEL FLOODPLAIN ENCROACHMENT MAXIMUM PERMITTED ON OTHER STREAMS 1ua YEAR FLOODPLAIN FRINGE FlOOOWAY FRINGE FLOODWAY LEVEL g O 0 ellQt00fIJ 0 0 0 l o D GROUND 100 YEAR FLOOD LEVEL FLOODPLAIN ENCROACHMENT MAXIMUM PERMITTED BY FEDERAL EMERGENCY MANAGEMENT AGENCY NATURAL RESOURCES 31 POWAY COMPREHENSIVE PLAN GENERAL PLAN Various policies and strategies are determination of their location is related included in the General Plan to provide to the preservation of sensitive biological protection for riparian corridors outside of ecosystems described above the core area of the City where Information concerning these corridors significant lengths of the creeks have was provided by the studies done by already been altered These and the ERCE ordinance regulating clearing and grubbing which is being prepared are Region Serving Open Space designed to protect the wetlands to a level comparable to that described in the Region serving open space includes SANDAG report areas providing opportunities for outdoor recreation especially regional parks Sensitive Biological Ecosystems The which generally are publicly owned or at Regionally Significant Open Space least provide access to all of the public Definition report indicates that various In addition agricultural production lands sensitive ecosystems natural which should remain open due to public communities and their environments safety requirements such as airport clear should be preserved in major portions of zones and mineral production lands are the County in order to retain as much of included the region s biological diversity as possible It suggests however that The Lake Poway Rexrode Wilderness insufficient information is currently Blue Sky Ranch area is included on the available to identify the appropriate list of region serving open space Also areas As part of the 1991 included is the San Oieguito River Valley Comprehensive Plan update Poway had Regional Open Space Park which is a detailed biological assessment adjacent to Poway s northern border and prepared by ERC Environmental and includes a small section of the City Energy Services Co ERCE In addition ERCE prepared a Focused California ACTION PROGRAM Gnatcatcher Resource Study for the City as mitigation for the Old Coach Golf Implementation of the Resources Master Estates project With this data base Element calls for the use of various poway is prepared to make informed planning tools including regulatoryjudgmentsaboutthesensitivedevicesreviewproceduresland ecosystems in the City and to participate acquisition and education This section in regional environmental efforts as soon discusses the primary techniques that will as other studies are completed be used to ensure that Poway s natural Wildlife Corridors While the major resources are protected for the future open space areas provide life cycle Goals and policies related specifically to room for many wild animals in the region resource protection and preservation are open space corridors provide the lifelines listed at the end of this master element for the region s wildlife Preservation of however many additional goals and appropriate areas is important and the NATURAL RESOURCES 32 INCLUDES AMENDMENTS THROUGH GPA 9401 POWA Y COMPREHENSIVE PLAN GENERAL PLAN policies of this general plan relate people to increase densities in rural indirectly to resource preservation A residential areas complete listing of all goals and policies DEVELOPMENT REGULATIONiscontainedintheGoalsPoliciesand Strategies Section of the General Plan Various forms of regulation are available contain to protect resources Both General Plan Areas which are likely to Strategies and Land Use Ordinance sensitive biological prehistoric or historic provisions impose design limitations for resources are identified on maps buildings on steep slopes DevelopmentcontainedintheGeneralPlanandtheonprominentridgelinesisprohibited Master Environmental Assessment Grading and the amount of the site that can be developed are limited based on OPEN SPACE ZONING slope A new ordinance will require City The most direct way for the City to review before brushing can occur protect natural resources is to acquire Development is also prohibited in ownership of them Through purchase floodways and restricted in floodplains dedication required as part of the development process and transfer of title LOT AVERAGING from the Bureau of Land Management Lot averaging provisions encouragePowayhasgainedcontrolofhundredsofdevelopmenttobeclusteredinorderto acres of land which will be preserved in preserve open space and sensitive natural open space These lands are resources This is particularly important designated Open Space Resource in preserving large contiguous openManagementintheLandUseElementspaceareasandbiologicalcorridors and in the Zoning Ordinance The uses allowed in these areas will be limited ENVIRONMENTAL REVIEW mainly to hiking and horse riding along The California Environmental Quality ActimprovedtrailsCEQAwasenactedtoprotectthe In addition the City owns about 200 environment from adverse impacts of public and private projects It requiresacresofdevelopedparklandandthereis site specific assessment of potentialanadditional150acresofprivateimpactsfromproposeddevelopmentandrecreationalopenspaceTheseareas mitigation of impacts identified If thearedesignatedandzonedOpenSpaceproposedprojecthasthepotentialtoRecreation cause significant environmental impacts RURAL RESIDENTIAL ZONING an Environmental Impact Report EIR must be prepared The EIR must include Much of undeveloped poway is zoned for discussions to the extent they are large residential lots under the Rural relevant of the project s impacts on the Residential categories These densities area s natural resources including are protected through General Plan topography air and water quality provisions which were adopted by voter valuable natural habitats rare or initiative which require a vote of the endangered species cultural resources INCLUDES AMENDMENTS THROUGH GPA 9401 NA7URALRESOURCES 33 POWA Y COMPREHENSIVE PLAN GENERAL PLAN etc The EIR must also identify This group was created for the purpose mitigation measures to minimize the of creating an open space preserve in impacts of a project and alternatives to the San Dieguito River watershed area the proposed project that may be more extending from near Julian in the east to environmentally responsive the ocean on the west Mitigation may include the dedication of Finally all of the jurisdictions in the portions of the site as permanent open region have participated in a regional space In addition valuable resources open space committee which through may be preserved through acquisition by SANDAG has issued a report entitled developers in other jurisdictions as off Regional Significant Open Space site mitigation for the environmental Definition impacts of their projects FINANCING INTER GOVERNMENTAL The principal source of funding for open COORDINATION space acquisition will be developer fees In 1988 a 410 acre area known as the under the Quimby Act land acquired as Blue Sky Ranch was acquired by a off site mitigation for environmental combination of agencies including the impacts and dedication of land required City of Poway the California Department as a condition of subdivision map of Fish and Game the Nature approval Conservancy and a developer seeking off site mitigation This area is now operated by the Department of Fish and Game as a biological preserve The cities of poway and Santee are currently working with the County of San Diego to acquire a site the Goodan Ranch adjacent to the Sycamore Canyon Park This property will be added to the Sycamore Canyon Park The facility will include active uses such as a conference center riding facility and campground in the area that has been disturbed through the ranching activity with the remainder being kept in permanent open space to help form a buffer between the more developed areas in Santee and Poway poway is also part of the San Dieguito Regional Park Joint Powers Authority NAruRAL RESOURCES 34 INCLUDES AMENDMENTS THROUGH GPA 9401 PREHISTORIC AND HISTORIC RESOURCES ELEMENT INTRODUCTION Complex and the late prehistoric Luiseno and Kumeyaay Indians Whereas most cities in Southern California have chosen to exchange the San Dieguito Complex remnants of their rural or farming community beginnings for urban The term San Dieguito Complex is a development the City of poway has cultural distinction given to a group of chosen to retain its rural character and people who occupied sites in this region image Important to this decision is the between 10 000 and 8 000 years before desire to preserve the vestiges of the present B P The artifacts Poway s beginnings such as historic recovered from these sites duplicate a landmarks and prehistoric occupation typology which corresponds to that which sites The preservation of cultural has been attributed to the Western resources expands the community s view Pluvial Lakes Tradition Moratto 1984 of who they are where they have been Although sites associated with this and what they want to become The complex are few in number stratigraphic tangible presence of buildings and sites evidence at two sites has indicated that that speak of other people other cultures the San Dieguito may have been the first and other times is a form of history that culture to migrate into the coastal plain at enables the current residents of poway San Diego Warren 1966 Moriarty 1967 to trace some of the paths to the present The artifact typology of the San Dieguito and the future Without the many Complex includes bifacially flaked knives reminders of early Poway that still well made planes and scrapers remain the City s ability to define its crescentic stones and possibly milling rural character might not be possible tools An assessment of the prehistoric and The San Dieguito Complex is the least historic resources of the City was understood of the cultures that have completed in conjunction with the 1991 existed in San Diego County This is General Plan update and is included in due primarily to the fact that San the Master Environmental Assessment of Dieguito sites rarely contain stratigraphic the Poway Comprehensive Plan information or datable material Currently controversy exists among PREHISTORIC researchers which centers upon the occupation of the San Dieguito along the RESOURCES coast whether the San Dieguito Complex evolved quickly into the La Jolla The cultural chronology for the poway Complex or was assimilated into the La area includes the generally accepted Jolla Complex or eventually migrated cultural phasing within San Diego away from the coastal plain Within the County consisting of occupation by the Poway area very little evidence of the San Dieguito Complex the La Jolla San Dieguito Complex has been identified INCLUDES AMENDMENTS THROUGH GPA 9401 NATURALRESOURCES 35 POWAY COMPREHENSIVE PLAN GENERAL PLAN La Jolla Complex zone occurred approximately 1 500 years ago when Yuman and Shoshonean At approximately 9 000 to 8 500 years speaking peoples moved from the before the present a major new cultural Colorado River basin to the coast in tradition became established in the search of a more plentiful food supply county primarily along the coast This Moriarty 1969 Fortunately tradition has been called the La Jolla ethnographic information is available Complex and dates from sites attributed from the period of the earliest Spanish to the culture span a period of 6 000 to contact to the late 1800s which has 7 000 years between 8 500 and 2 000 recorded a great deal of the non material B P The La Jolla Complex is best aspects of these groups recognized for its pattern of shell middens and grinding tool closely Sites of the late prehistoric component affiliated with the marine resources of the are focused in the foothills and area and flexed burials Shumway mountains rather than along the coast Hubbs and Moriarty 1961 The subsistence pattern was based on the collecting of seeds especially The tool typology of the La Jolla acorns berries and bulbs and the Complex displays a wide range of hunting of small game Artifacts of the sophistication in the lithic manufacturing late prehistoric people include milling techniques used to create tools tools ceramics projectile points Scrapers the dominant flaked tool type scrapers planes beads shaft were created by either splitting cobbles straighteners and hammerstones or by finely flaking quarried material Ethnographic information denotes that Inland sites of the La Jolla or Pauma the culture of the Kumeyaay Indians Complex located away from the marine included a close clan system religious food resources generally lack shellfish beliefs and complex trade associations remains but retain most of the typical with relatives living in the Colorado River implements of this culture True 1958 basin Kroeber 1925 These inland sites likely represent manifestations of the seasonal ARCHAEOLOGICAL SITE PATTERNS movements which comprised the The dominant geographical elements in subsistence pattern of these people the area are poway Valley and the main Traces of the La Jolla Complex have drainages in the valley poway Creek been identified in the study area and Rattlesnake Creek Undoubtedly principally along Poway Creek and near these combined to present an Sycamore Creek north of Espola Road environment of consistent food and water The inland valleys such as Poway Valley resource potential As a consequence were the easternmost extension of the La most cultural resource sites are located Jolla Complex on terraces or elevations along the main waterways with the exception of Luiseno and Kumeyaay Indians resource specific sites such as quarries The last major migration into the coastal NATURAL RESOURCES 36 INCLUDES AMENDMENTS THROUGH GPA 9401 d M I I c I IIIIIII I I I III I IIII t IIII Ii 13S20FEBT8III I I f IIIIIIII I I I I IIrI 16 LEGENDIII IIJI III II 1 T CITY BOUNDARYI n n n SPHERE OF INFLUENCEII III f 21II I I III I I III I I III I I II I I I 1f II II I I I I I II rI II I I I I I I I T 13 S T 14 S 14 I I I22 22I f I I1I IT LI I I II I I I I I I I I I I r r I I IIII I IIII I I I I N I IIIII I rJ is PROJECTED ARCHAEOLOGICALL Y SENSITIVE AREAS BASED ON2trItTOPOGRAPHYANDONPREVIOUSARCHAEOLOGICALSTUDIESlZGRIDREPRESENTSTOWNSHIPSECTIONSIi TI OtrIj0 HIGH PROBABILITY THAT AN ARCHAEOLOGICAL SITE IS PRESENTeCDt ill trI g 8 MODERATE PROBABILITY THAT AN ARCHAEOLOGICAL SITE IS PRESENTCrotrI2QI1LOWPROBABILITYTHATANARCHAEOLOGICALSITEISPRESENTo2ttfjrJt1lfl 4 POWAY COMPREHENSIVE PLAN GENERAL PLAN The major sites in the valley setting are valley by La Jolla Complex was not as extensive as that by the Kumeyaay The 1 Site SDi 8245 a major late area was likely a stop in the subsistence prehistoric campsite located on a knoll pattern of the La Jolla Complex who overlooking the west end of Poway migrated seasonally from the coastal Valley and the confluence of Poway lagoon to the inland valleys From an and Rattlesnake Creeks The site archaeological perspective no definitive includes milling features rock art and evidence has been yet uncovered in the midden deposits county area to directly associate the La Jolla and Kumeyaay peoples The La 2 Site Sdi 4428 a large quarry location Jolla Complex faded from the area at where basalt materials were procured approximately 1 500 B P after being for artifact manufacture This site is established along the coastal area for considered to be a significant nearly 7 000 years The Kumeyaay prehistoric resource associated with Indians migrated to the coastal side of the late prehistoric occupation in the the Laguna Mountains at approximately poway area 700 A D For a span of nearly 1 000 years generations of Kumeyaay Indians 3 Site Sdi 10 154 probably the major lived peacefully in the poway area until prehistoric occupation location in the Hispanic Intrusion and the foundation poway Valley The site is situated of the Mission San Diego de Alcala in along poway Creek and has been 1769 extensively disturbed by development and relic hunting The cultural The archaeological record for the poway materials have been deposited by region documents the presence of Poway Creek through time to depths several different types of prehistoric sites as great as 20 feet Materials which The variety of sites reflect the pattern of have been recovered by relic hunters food collection areas living sites and include a large number of manos and resource exploitation locations which metates steatite pipes and bowls were needed by the prehistoric smoking pipes projectile points inhabitants to survive in the region The pottery burials flakes and cores and types of sites recorded in the poway lithic tools area include the following The data provided by the record Permanent villages and long term searches indicates that the dominant habitation sites For the La Jolla culture in the poway vicinity was that of Complex and the Kumeyaay Indians the Kumeyaay Indians who occupied the seasonal transhumance throughout valley for approximately the past 1 000 their range in search of food was years until the settlement of the area in usually focused around major village the 1800s Before the Kumeyaay locations Ethnographic evidence Indians the La Jolla Complex also suggests that most villages were not occupied the valley The use of the necessarily abandoned from one INCLUDES AMENDMENTS THROUGH GPA 9401 NATURALRESOURCES 38 POWAY COMPREHENSIVE PLAN GENERAL PLAN season to the next although most Milling stations Perhaps the most capable individuals followed the commonly recognized prehistoric sites maturation cycle of plants to assist the in San Diego County are milling tribe or family group in the collection stations which are comprised of a of food or tool making materials single bedrock outcrop or a group of necessary for survival Villages were outcrops of granite usually located the locations to which the foraging near streams or oak groves upon groups returned with stores of food for which the Kumeyaay and related consumption or preservation Villages groups processed seeds usually are usually located at or very near acorns for food The milling process permanent or semi permanent normally included the use of mortars sources of water and or acorns and in to break the shells of the acorns and relatively sheltered settings The slicks or oval basins to grind the variety of artifacts found at a village acorns into meal Milling stations site is usually very diverse because may be found either in isolation or in the entire range of activities association with large or small associated with the culture of a group temporary camps or villages would eventually have occurred there As a result a village site usually lithic scatters lithic scatters are includes food preparation tools characterized by a surface dispersion cooking features hearths lithic of lithic production waste and tools manufacturing and maintenance tools These scatters represent locations hunting implements projectile points where lithic tools were prepared from milling tools basketry tools a core or where tools were sharpened cremations and religious articles to create a new working surface through flaking Within the poway Temporary camps When the seasonal area some of the recorded lithic movements of the prehistoric scatters are associated with lithic inhabitants of poway required the use quarries where naturally occurring of short term camps to serve as the materials were exploited for tool focal points for food collecting and manufacture hunting sites were chosen to which the gatherers would generally return Features Two primary types of rock year after year for hundreds of years features can be found in the poway Thus while each period of occupation area rock cairns and granary may not have been long repeated features Cairns are usually stacked annual use of the sites would result in piles of rocks which served as trail the development of a deep midden markers or boundary locations deposit of artifacts although these Granary features are circular stacks materials would not be as diverse as of rocks usually two or three tiers would be found at the village site high upon which baskets or basket because the range of activities would like containers were placed to serve have been limited to the collection of as acorn collection locations The necessary resource materials acorns would be left for a length of NATURAL RESOURCES 39 INCLUDES AMENDMENTS THROUGH GPA 9401 PCNVAY COMPREHENSIVE PLAN GENERAL PLAN time to dry in the granary prior to archaeological record is common to San being ground into meal Diego County Rock art Pictographs painting on PREHISTORIC SITE SENSITIVITY the surface of large rocks are the ISSUES most common form of rock art found The study area includes approximately in Southern California and in Poway 27 248 acres of which 10 784 acres have Pictographs recorded in the study been subjected to archaeological area include the Rancho Bernardo surveys resulting in the recordation of maze and other symbolic designs 167 prehistoric sites The site records Petroglyphs made by actually incising for the area indicate that the cultural a design into the surface of a rock resources represent a significant and rich comprise a less common form of rock record of the human occupation of the art in the area poway area over the past 4 000 to 6 000 years The pattern of recorded sites Isolates Throughout the poway indicates that nearly all areas of Poway region isolated artifacts may be found were utilized by prehistoric inhabitants to representing the discarding of or exploit the resources necessary for breakage of tools or pits during the survival and cultural fulfillment However process of collecting food or traveling the pattern of prehistoric use is not from one location to another uniform throughout the study area The recorded sites are clustered around Rock shelters Although neither areas with water and food resources natural nor enhanced rock shelters or Therefore while the entire area of poway enclosures are common features in may be considered potentially sensitive Southern California several have at some level the analysis of existing been recorded in the poway area A environmental conditions including rock shelter is generally any natural topography and biology and the formation of large rocks which affords documented pattern of prehistoric sites shelter for man or for storage In has been utilized to plot relative levels of addition shelters were sometimes archaeological sensitivity throughout the enhanced by stacking rocks or making City The hierarchy of sensitivity high other alterations to make them more moderate low is based upon the suitable following criteria in descending order of importance The dominant site types found in the poway area include bedrock milling sites 1 The recorded pattern of sites camp sites of temporary occupation and lithic scatters For the most part these 2 The relative number of village and sites reflect resource exploitation within major camps or clusters of sites in an the catchment area represented by area poway Valley and the related drainage systems The range of sites noted in the INCLUDES AMENDMENTS THROUGH GPA 9401 NATURALRESOURCES 40 I POWAY COMPREHENSIVE PLAN GENERAL PLAN 3 The proximity to water water even means which may not have impacted the more than food was a primary factor subsurface soil such as properties in prehistoric occupation and containing older homes on above ground subsistence patterns in the poway foundations or homes on very large and Area generally undisturbed lots areas of agricultural uses and areas of moderate 4 The proximity to food resources slopes and bedrock exposures especially riparian and oak woodland habitats High Sensitivity Areas which have not been disturbed are located near food and 5 The proximity to lithic resources for water resources which have not been tool manufacture previously surve yed which include bedrock outcrops or abundant vegetation 6 The proximity to routes of or which contain clusters of prehistoric ingress egress especially along sites poway and Rattlesnake Creeks Based upon the archaeological record 7 Topographic setting which included prehistoric site densities range from one relatively mild slopes and terraces to ten sites per 160 acre tract a quarter affording commanding views of the section in areas which were previously area and ease of access to food and surveyed Overall the poway area was water resources a major prehistoric occupation area within San Diego County especially for Utilizing these criteria Poway may be the late prehistoric Kumeyaay Indians viewed as consisting of areas of varying The review of previous studies in the sensitivity which are illustrated on the area revealed that neatly all of the Projected Archaeologically Sensitive archaeological survey programs Areas Map Despite previous conducted within the City and its sphere development many areas still retain high of influence but outside of areas or moderate potential for the presence of disturbed by development have resulted sensitive and potentially significant in the discovery of at least one archaeological resources The zones of historically prehistoric site This high moderate and low sensitivity are correlation is significant because it characterized as follows demonstrates that the potential for the discovery of archaeological sites is high Low Sensitivity Areas of low sensitivity throughout the area are those which have been previously surveyed without the discovery of any resources areas which have been extensively graded and areas which have been developed Moderate Sensitivity Areas which have been developed or altered but by NATURAL RESOURCES 41 INCLUDES AMENDMENTS THROUGH GPA 9401 LEGEND CITY BOUNDARY SPHERE OF INFLUENCE I tll PROJECTED HISTORICALLY SENSITIVE AREAS BASED ON RECORDEDiS rIJ HISTORIC SITES AND RESEARCH DATA tlrlZ tl HIGH PROBABILITY THAT HISTORIC SITES ARE PRESENT11rlJrIJOis3 lll 6 Otl m11 ilitf ilfwJj r1 tf ilic MODERATE PROBABILITY THAT HISTORIC SITES ARE PRESENTiIlilllD Z tl O I I0 LOW PROBABILITY THAT HISTORIC SITES ARE PRESENTtllT001iIlttl tlt0 0 03 PLOTTED HISTORIC SITES BASED ON TOWNSHIP PLATTS 1903rIJtl U S G S TOPOGRAPHIC MAPS AND V AN DAM S MAP OFtI ll HISTORIC SITES 1983 POWA Y COMPREHENSIVE PLAN GENERAL PLAN HISTORIC PERIOD requirement or chose to ignore the grant because he never completed the improvements Bancroft 1964 Aguilar The first recorded historic event in Poway retained his home in Old Town and Valley was the baptism of an Indian remained active there and while his heirs woman Cupemia at the Rancheria of claimed that he had conformed to the paguay baptism records Mission San requirements of the grant it is probable Diego de Alcala No 3162 undated in that he did not occupy or pursue the use 1804 Following that year most of the of the Rancho paguay Upon his death Indian baptisms and marriages took the rancho passed to Aguilar s heirs place at the mission indicating that the which appears to indicate that even if occupants of the Kumeyaay villages in Aguilar was ambivalent about the grant the poway area especially the he did assume that his ownership was Rancheria of paguay had been moved valid to the mission to join the assembled TheIndiangroupsthere owner of the Rancho de los Penasquitos Francisco Maria Alvarado After the Spanish lost control of tried to attach the Rancho paguay to hi California to Mexico in 1821 the area of rancho lands After Aguilar s death in Poway was probably still used by the 1846 despite the claims of Aguilar s Franciscan fathers to graze cattle After heirs Alvarado acquired the land the secularization of the missions in Hassan 1988 Alvarado was taxed on California in 1835 the most desirable the property in 1851 and in 1854 when lands in the region were taken from the Alvarado s possessions were sold at a church and made available to the sheriffs auction to fulfill a court Mexican citizens through land grants settlement the Rancho Paui paguay Public or government land was frequently was offered for sale although no offers used by various individuals to graze were made on the rancho San Diego cattle Hassan 1988 Herald September 9 1854 Alvarado eventually reacquired his rancho as a In the 1830s Corporal Rosario Aguilar of result of negotiations between Philip the Mexican Army a long time San Crosthwaite and Richard Kerren Diego resident applied for a land grant The claims of of the Rancho Paguay Although no both Alvarado and formal record has ever been located for Aguilar s heirs to the Rancho Paui were this application Hassan 1988 the grant eventually heard by the United States for the rancho which contained one Land Commission and by the 1870s square league approximately 4 428 neither had submitted sufficient proof of acres was approved by Governor Juan ownership to be granted a patent by the Bautista Alvarado in 1839 To secure government Philip Crosthwaite whose the grant Aguilar was required to wife Josefa was related to Mrs Alvarado construct a house and plant trees around formed an agreement in 1855 with it Aguilar either refused to honor this Francisco Alvarado to purchase half of Rancho paguay if a secured deed could INCLUDES AMENDMENTS THROUGH GPA 9401 NATURALRESOURCES 43 POWA Y COMPREHENSIVE PLAN GENERAL PLAN be obtained by Alvarado Prior to that named George D W Robinson owned time Crosthwaite lived near Old Town on several parcels in Poway He used a property he owned in Mission Valley group of squatters lent to him by Alvarado gave permission for William W Ormsby to occupy several Crosthwaite to plant a garden for their parcels under the Homestead Act joint use in the Poway Valley Later in Hassan 1988 Other settlers came to 1855 Crosthwaite filed a pre emption the valley at about the same time the claim homestead for 160 acres of the Charles Stone Family came from Texas Rancho paguay apparently believing with their 12 year old daughter Matilda that Alvarado s claim to the rancho would Frederick W Fisher Antoine Hector not materialize Hassan 1988 The and Alphonse LeClaire and John claim filed by Crosthwaite corresponds to McCann and William Reymaan The an area which appears to include the majority of these settlers were bachelors present Haley Trust property located Homesteads in the valley were by the south of poway Road and east of late 1860s often contiguous to each Community Road Part of the claim other By the 1870 census the includes the statement that a landmark in Costanos Paine or Payne family settled the 160 acre parcel was an old at Rock Spring Station and the Andrew abandoned adobe perhaps this is a Jackson Babb family settled in the valley reference to the structure which Aguilar The community of poway became firmly was required to build to satisfy the grant established for the Rancho paguay The economic base of the region was By 1856 Crosthwaite had built an adobe expanded from stock ranching to include house and moved his family to Poway grain farming with only moderate short Judge Benjamin Hayes spent the night lived friction between the two factions there and recorded the hospitality he The fields of the immigrant farmers were received from the Crosthwaites Smith often damaged by wandering livestock 1982 Crosthwaite raised livestock and The short term solution to the problem farmed on his poway land and was was for the farmers to shoot the assessed for improvements and livestock offending animals The No Fence Law in the years 1857 and 1861 In spite of of 1850 was implemented in the area of the success which Crosthwaite appeared poway by 1870 As a result the to achieve at Poway he inexplicably responsibility for damage to crops gave his 160 acre parcel to Mathilda caused by wandering stock was shifted Kerren Anderson Crosthwaite then from the farmer to the rancher moved his family to his large ranch in Baja Mexico the 45 000 acre Rancho Ranchers were forced to fence their San Miguel Tamplain 1975 lands The shift in responsibility allowed the community to diversify economically Settlement activity was minimal until after and grow socially the Civil War ended when settlers began to flow into the valley An absentee The year 1870 was a banner year in the landowner and short term resident history of Poway An old wagon road NATURAL RESOURCES 44 INCLUDES AMENDMENTS THROUGH GPA 9401 POWA Y COMPREHENSIVE PLAN GENERAL PLAN was transformed into a county road of Good Templars IOGT constructed a which passed through the valley and hall which served as a focal point for served the neighboring communities community functions A Grange and a This enhanced the ability of farmers to Literary Society were indications that the market their products outside the valley community had become refined as well In addition the name of the valley as diversified Landholdings were divided became firmly established that same and immigrants with marketable skills year The Indian name which had been other than farming settled in Poway By variously recorded as paguay the end of the decade telephone Paguai pawii paui Pauwai and communication and road expansion others became poway when the further modernized the valley Postmaster General established a postal station in the valley Although a The 1890s witnessed a brief decrease in schoolteacher was hired that year it was population and a disappointing attempt to not until the following year that a formal bring railroad service to the valley schoolhouse was planned The county However a daily stagecoach continued Republican convention was held in to serve the area until the automotive poway in 1871 That year a local age Despite the growth and success of resident was named the Poway delegate the farming community during the 1880s to the Democratic convention and the lack of a dependable water supply became superintendent of schools restricted continued expansion in the Hassan 1988 The decade closed with area This dependable water supply did a federal survey of area townships not become available until 1954 A drought during the last years of the By the turn of the century 800 people 1870s caused a reduction in the number resided in the community of poway of farmers in the valley but the boom of Howard 1988 The World Wars and the the 1880s reversed that trend The rains Great Depression affected the region no of 1880 ended the drought and the more or less than other rural exodus from the area Bees and citrus communities poway was a haven for broadened the agricultural spectrum urbanites who sought a rural way of life providing poway with greater economic near the urban center of San Diego By diversification Orchards were expanded 1970 the population of poway had and the valley became a fertile haven for grown to 14 000 residents As of April farmers during this period An informal 1990 the population of the incorporated campaign against natural predators in the city was over 43 516 citizens U S area such as mountain lions coyotes Census 1990 poway has shared the wildcats and bears decreased the losses experience of the rest of the Southwest of domestic fowl and livestock to other in receiving a major influx of people from animals By the end of the 1880s the all over the nation The character of the community boasted a satisfactory road area has changed dramatically since the system a school a cemetery a church ranching and farming era of the 19th mechanized farming and wire fencing century Hassan 1988 The International Order INCLUDES AMENDMENTS THROUGH GPA 9401 NATURALRESOURCES 45 POWA Y COMPREHENSIVE PLAN GENERAL PLAN In 1987 1988 the City of poway or last surviving example of its kind or conducted an informal architectural and historical survey for structures within its 4 Is at least 100 years old and corporate boundaries resulting in a possesses substantial stratigraphic preliminary list of 37 historical sites MC integrity or 1745 030 Since the valley was settled generally after 1850 and primarily after 5 Involves important research questions the Civil War the types of structures that historical research has shown which have been built vary in design can be answered only with producing diverse eclectic architectural archaeological methods styles The types of structures which have been recorded include Mexican and Thus structures features or buildings Spanish influenced adobe homes and are generally considered significant if barns prairie or pioneer style cottages they represent or depict a particular style craftsman style ranch houses and historic period movement or event or if bungalows stick Victorian houses and they illustrate the work of a famous or rock houses which have come to well recognized architect More represent a significant aspect of Poway s specifically historic and architectural historic element According to the City s sites provide direct visual and tactile links study at least 40 historical sites in with the historic past In Poway for Poway are more than 50 years old instance stone houses have come to However the recorded site information represent a distinct remnant of rural for the Poway area indicates that at least home sites especially in South Poway 30 more sites or approximately 70 sites are more than 50 years old Neighborhoods take their identity from the architectural styles of the homes they HISTORIC SITE SENSITIVITY ISSUES contain thus affording cultural Historic structures which are important significance to architecture Historic or archaeological resources as defined by architectural districts frequently become Appendix K of CEQA are those which focal points for restoration and urban renewal which in turn enhance 1 Are associated with an event or community awareness person of recognized significance in Other features of the development ofCaliforniaorAmericanhistoryor poway as an agricultural center and as a 2 Can provide information which is both community include tree groves windmills of demonstrable public interest and wells old roads and bridges Pomerado useful in addressing scientifically Road Espola Road Midland Road consequential and reasonable or Community Road and poway Road are archaeological research questions or all examples of trails and early roads which provide continuity between the 3 Has a special or particular quality past and the future development of the such as oldest best example largest community All of these elements of historical background should be NA TURAL RESOURCES 46 INCLUDES AMENDMENTS THROUGH GPA 9401 POWA Y COMPREHENSIVE PLAN GENERAL PLAN recognized in the historical site listing for other records as being associated with the City structures or other features of historical sensitivity The pattern of historic use is not uniform throughout the study area The recorded sites are clustered in the flat areas of the valleys where farming and ranching were possible Therefore analysis of existing environmental conditions including topography and the documented pattern of historic sites plotted on township plats and quadrangle maps may be utilized to illustrate the relative levels of historical sensitivity throughout the city The relative areas of historic sensitivity have been plotted on the Projected Historically Sensitive Areas Map Despite the level of development in Poway many areas still retain high or moderate potential for the presence of sensitive and potentially significant historical resources The division of the project area into zones of high moderate and low sensitivity was accomplished using the following criteria Low Sensitivity Areas which have been previously surveyed without the discovery of any resources areas which have been extensively graded and areas which have been developed Moderate Sensitivity Areas within the city which have been developed while leaving existing historically sensitive homes on existing lots undisturbed lots areas of agricultural uses areas of moderate slopes and along the historic road systems High Sensitivity Areas which have been listed as historical sites such as farms houses or public buildings or areas indicated on the township plats or INCLUDES AMENDMENTS THROUGH GPA 9401 NATURALRESOURCES 47 GOALS POLICIES AND STRATEGIES The goals policies and strategies shown below are those that relate directly to issues discussed in the Resources master element The various elements of the General Plan are intended to be consistent with each other and should be interpreted to be consistent goals and policies contained in other elements will also support those included here A complete listing of all goals policies and strategies is contained in Section II of this General Plan GOAL II IT IS THE GOAL OF THE CITY OF POWAY TO PROVIDE FOR AN ORDERLY BALANCE OF BOTH PUBLIC AND PRIVATE LAND USES IN CONVENIENT AND COMPATIBLE LOCATIONS THROUGHOUT THE CITYAND TO ENSURE THAT ALL SUCH USES SERVE TO PROTECT AND ENHANCE THE ENVIRONMENT CHARACTER AND IMAGE OF THE CITY Policv B Distribution of Land Uses Land uses should be distributed so as to encourage in fill development within the built up parts of the City protect the integrity of existing land uses and densities and preserve the open space and rural nature of Poway Strateoies 1 Encourage land uses and densities that are consistent with a rural lifestyle and image including preservation of open space and development of very low density residential land uses The density of land use shall remain primarily rural within the hillsides and remote regions of the City and suburban within the developed central community core 2 Large contiguous areas of open space shall be encouraged throughout the City and shall not be fenced or otherwise constricted 3 Watershed areas with slopes greater than 25 percent shall be retained in parcel sizes of 40 acres or more 4 The majority of residential construction in the City shall be in rural residential categories Rural residential areas shall be primarily devoted to large lot custom home construction although in some instances tract homes that simulate custom homes may be allowed 5 Various types of multiple family units are encouraged in order to provide greater variety in regard to design and lifestyle preference NATURAL RESOURCES 48 INCLUDES AMENDMENTS THROUGH GPA 9401 POWAY COMPREHENSIVE PLAN GENERAL PLAN 6 Multi family residential land uses shall be located in areas compatible with existing land uses and in proximity to major roads transit commercial areas and public services and facilities 7 Recreational uses e g resorts golf courses may be allowed in rural areas providing that provisions are made for the health safety and welfare of the users and surrounding residents and that the uses are consistent with the policies of the Land Use and Community Design Elements 8 In rural residential areas most uses other than agricultural and residential shall be limited to areas with natural slopes of 10 percent or less Other uses such as hiking and riding trails driving ranges golf courses and other recreational uses may be considered on steeper slopes providing that they do not significantly alter the landform Buildings and parking lots must adhere to slopes of less than 10 percent 9 The distribution of land uses should consider the health safety and welfare of the community in regard to natural hazards 10 Public or quasi public structures schools churches hospitals shall be located in low risk seismic or geologic hazard areas 11 Community commercial land uses that will serve the entire community or subregion in which Poway is located are encouraged along poway Road adjacent to existing uses of similar intensity 12 Limited neighborhood commercial activities may be located on the border of rural residential and urban land uses 13 Mobile home park land uses shall be located in areas compatible with existing land uses and in proximity to major roads transit commercial areas and public services and facilities 14 New urban development projects residential areas with greater than two dwelling units per acre du ac commercial and manufacturing shall be bounded on a minimum of two sides by existing urban land uses and existing public facilities 15 Where a commercial area abuts a residential area the following improvements shall be made to ensure compatibility Structures shall be adequately set back from the residential property line to avoid land use impacts An eight foot high solid masonry wall shall be constructed along the residential property line except where it is clearly demonstrated that a shorter wall will adequately protect the residential property INCLUDES AMENDMENTS THROUGH GPA 9401 NATURALRESOURCES 49 POWAY COMPREHENSIVE PLAN GENERAL PLAN Landscaping in the form of trees shrubs and ground covers shall be planted within an area at least five feet wide in addition to wall footings on the inside area of the wall 16 It is the specific intent of the City that commercial land uses on Pomerado Twin Peaks and Espola Roads not be substantially expanded beyond their present locations 17 Public and semi public uses should be located where the use is compatible with surrounding land uses development intensity topography and architectural style The following provisions shall guide the location of such uses Site should be located adjacent to a Transportation Element roadway Public utilities should be immediately available to the site Sites where the public semi public uses can serve as a buffer between residential and other potentially incompatible use are particularly appropriate 18 Manufacturing uses shall be located so as not to create adverse impacts on surrounding land uses and or the City transportation system 19 Commercial and manufacturing service land uses adjacent to residential land uses shall include a buffer zone or noise attenuation wall to reduce outside noise levels at the property line to 60 dBA 20 Incompatible land uses shall not be made contiguous without adequate buffering and or setbacks Special emphasis and techniques shall be used in buffering surrounding land uses from commercial uses In the event a question of compatibility exists between two uses or intensities the lower intensity use shall take precedence The City Council shall make the final determination in those areas of questionable land use compatibility 21 Provide information on all submitted development proposals that may affect student enrollment to the Poway Unified School District PUSD for review in light of their planning goals The City shall provide the PUSD with regular reports of building permit activity Floodplains and Floodways 22 Land within the 100 year floodplain should be designated for low density residential or open space uses NATURAL RESOURCES 50 INCLUDES AMENDMENTS THROUGH GPA 9401 POWA Y COMPREHENSIVE PLAN GENERAL PLAN 23 Structures which do not conform to Poway Flood Hazard Management standards must be brought into conformahce with these standards if reconstruction rebuilding or repairing made necessary by damage will exceed 50 percent of the reasonable replacement value of the structure prior to any damage 24 Critical emergency uses hospitals fire stations police stations public administration buildings and schools shall not be located in flood hazard areas 25 Development within the 100 year floodway is prohibited 26 Development in the 100 year floodplain may be approved if the following conditions are met All structures both permanent and temporary must be raised one foot above the 100 year flood level Information certifying the 100 year flood level must be submitted by a qualified civil or hydrological engineer All weather access must be provided to all developments for divisions of land residential units commercial buildings manufacturing buildings or public buildings Information certifying that no upstream or downstream changes to the 100 year floodplain will occur must be submitted by a qualified civil or hydrological engineer 27 For purposes of land division floodway areas shall not be included in the calculation of net area 28 To prevent increased flooding within Poway all new land divisions and commercial developments shall be reviewed to determine the feasibility of storm drainage detention Should the project increase the storm drainage runoff by ten percent or more the differential storm drainage runoff shall be detained to the satisfaction of the City Engineer This does not preclude the City from requiring storm drainage detention for projects which do not exceed a 10 percent differential increase in storm drainage 29 No development shall be approved that would inhibit prevent or preclude the location of proposed detention basins on Rattlesnake Creek and the north and south branches of poway Creek as outlined in the Floodwater Detention Basin Survey dated August 1981 Policv A Scenic Areas Scenic areas prominent vistas and open space areas that typify Poway s rural history and image should be preserved and protected through appropriate land use policies INCLUDES AMENDMENTS THROUGH GPA 9401 NATURALRESOURCES 51 POWAY COMPREHENSIVE PLAN GENERAL PLAN GOAL IV IT IS THE GOAL OF THE CITY OF POWAY TO PRESERVE ITS NATURAL SCENIC AND CULTURAL RESOURCES FOR THE FUTURE BENEFIT AND ENJOYMENT OF ITS RESIDENTS AND TO PROTECT BIOLOGICAL AND ECOLOGICAL DIVERSITY Strateoies 1 Significant open space areas and scenic vistas along local scenic roadways should be protected 2 The mountains hillsides and prominent ridgelines are a valuable natural resource and should be preserved through appropriate land use policies Policy B Waterways The natural character of creeks and channels should be maintained or restored to the greatest extent possible with consideration for maintaining adequate flood protection Strateoies 1 Development including roads should be set back from riparian corridors a minimum distance of 50 feet or a sufficient distance as determined by a qualified biologist to avoid any damage to these areas These riparian corridors and associated buffer areas should be designated as permanent natural open space easements and the buffer areas should be vegetated only with appropriate native species as determined by a qualified biologist or native plant horticulturist 2 No activity or development shall be permitted within the watershed or viewshed of Lake poway which would diminish water quality of the lake or its open space and recreational value 3 Natural locations and rates of discharge into creeks and channels should not be increased without sufficient mitigation to ensure that significant alteration of the natural system will not occur 4 The use of rip rap in stream channels shall be limited to the minimum area required to protect adjacent improvements and stream banks from excessive erosion 5 Public access to creeks via trails paths and greenways shall be encouraged to the extent possible without negatively impacting the riparian habitat value 6 Coordinate with other jurisdictions to monitor and maintain acceptable water quality standards in local streams NATURAL RESOURCES 52 INCLUDES AMENDMENTS THROUGH GPA 9401 RESOLUTION NO 02 120 A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF POWAY CALIFORNIA APPROVING GENERAL PLAN AMENDMENT GPA 0202 AMENDING THE NATURAL RESOURCES ELEMENT OF THE GENERAL PLAN WHEREAS the City Council of the City of Poway recognizes that the need may arise to amend the City s General Plan and WHEREAS Section 65350 et seq of the Califomia Government Code describes the procedures for amending General Plans and WHEREAS on February 2001 the San Diego Regional Water Quality Control Board SDRWQCB issued a revised National Pollutant Discharge Elimination System NPDES Permit to the County of San Diego the San Diego Unified Port District and the 18 incorporated cities within the County including the City of Poway Included in the Permit is the requirement that the City assess and update its General Plan in areas conceming water quality and WHEREAS on October 8 2002 the City Council initiated the GPA 0202 and WHEREAS the City Council finds that the proposed General Plan Amendment would assist in the maintenance and improvement ofwater quality in the City of poway and within San Diego County and WHEREAS on November 19 2002 the City of Poway held a properly noticed public hearing in accordance with the Califomia Government Code NOW THEREFORE the City Council does hereby resolve as follows Section 1 The proposed General Plan Amendment is not subject to the California Environmental Quality Act CEQA pursuant to Section 21080 15 of the CEQA Guidelines in that the adoption of updated General Plan policies and strategies concerning the improvement of water quality will have no environmental impacts and are being undertaken by the City of Poway to implement a rule or regulation imposed by a State agency board or commission Section 2 The City Council hereby approves General Plan Amendment 0202 amending the Natural Resources Element Goal IV Policy B of the City of Poway General Plan to read as follows Resolution No 02 120 Page 2 Policy B Waterways and Water Quality The natural character of creeks and channels should be maintained or restored to the greatest extent possible with consideration for maintaining adequate flood protection Development will comply with all State regulations relative to water quality protection to the maximum extent practicable Strategies 1 Development including roads should be set back from riparian corridors a minimum distance of 50 feet or a sufficient distance as determined by a qualified biologist to avoid damage to these areas These riparian corridors and associated buffer areas should be designated as permanent natural open space easements and the buffer areas should be vegetated only with appropriate native species as determined by a qualified biologist or native plant horticulturist 2 The preservation and where possible the creation or restoration of areas that provide important water quality benefits such as riparian corridors wetlands and buffer zones shall be encouraged 3 No activity or development shall be permitted within the watershed or viewshed of Lake Poway which would diminish water quality of the lake or its open space and recreational value 4 Disturbances of natural water bodies and natural drainage systems caused by development including roads highways and bridges shall be limited to the extent practicable 5 Natural locations and rates of discharge into creeks and channels should not be increased without sufficient mitigation to ensure that significant alteration of the natural system will not occur 6 Avoid to the maximum extent practicable development of areas that are particularly susceptible to erosion and sediment loss or establish development guidance that identifies these areas and protects them from erosion and sediment loss 7 The use of rip rap in stream channels shall be limited to the minimum area required to protect adjacent improvements and stream banks from excessive erosion 8 Public access to creeks via trails paths and greenways shall be encouraged to the extent possible without negatively impacting the riparian habitat value 9 Coordinate with other jurisdictions to monitor and maintain acceptable water quality standards in local streams Resolution No 02 120 Page 3 10 Activities within the City s natural drainage systems which would adversely affect water quality such as pesticide use construction of septic leach fields and underground storage of hazardous substances shall be strictly regulated to ensure water quality is not compromised 11 Substances such as hazardous wastes or untreated wastewater shall not be discharged into the City s natural water systems 12 Urban runoff from impermeable surfaces which may be contaminated with oil grease vehicle fuels or other toxic substances shall have such contaminants substantially removed before discharge into the City s natural drainage systems The City shall comply with the requirements of the National Pollution Discharge Elimination System NPDES permit 13 Minimize the amount of impervious surfaces in areas of new development and redevelopment and where feasible slow runoff and maximize on site infiltration of runoff 14 The implementation of pollution prevention methods supplemented by pollutant source controls and treatment shall be encouraged The use of small collection strategies located at or as close as possible to the source Le the point where water initially meets the ground to minimize the transport of urban runoff and pollutants offsite and into the storm drain system shall be encouraged 15 Postdevelopment runoff from a site shall not contain pollutant loads which cause or contribute to receiving water quality objectives being exceeded or which have not been reduced as much as feasible 16 Grading should not increase the natural rate of erosion or cause siltation of stream channels 17 Through the development review process for projects identified as priority projects in the Citys Standard Urban Stormwater Mitigation Plan SUSMP methods available shall be utilized to estimate increases in pollutant loads and flows resulting from projected future development Structural and non structural Best Management Practices BMPs as required by the San Diego County Regional Water Control Board shall be required to mitigate the projected increases in pollutant loads and flows as much as is feasible Resolution No 02 120 Page 4 PASSED ADOPTED and APPROVED by the City Council of the City of Poway State of California this 19th day of November 2002 ATTEST u Sherrie D Worrell Deputy City Clerk STATE OF CALIFORNIA SS COUNTY OF SAN DIEGO I Sherrie D Worrell Deputy City Clerk of the City of Poway do hereby certify under the penalty of perjury that the foregoing Resolution No 02 120 was duly adopted by the City Council at a meeting of said City Council held on the 19th day of November 2002 and that it was so adopted by the following vote AYES EMERY GOLDBY HIGGINSON REXFORD CAFAGNA NOES NONE ABSTAIN NONE ABSENT NONE Sherrie D Worrell Deputy City Clerk City of Poway POWA Y COMPREHENSIVE PLAN GENERAL PLAN 7 Activities within the City s natural drainage systems which would adversely affect water quality such as pesticide use construction of septic leach fields and underground storage of hazardous substances shall be strictly regulated 8 Substances such as hazardous wastes or untreated wastewater shall not be discharged into the City s natural water systems 9 Urban runoff from impermeable surfaces which may be contaminated with oil grease vehicle fuels or other toxic substances shall have such contaminants substantially removed before discharge into the City s natural drainage systems The City shall comply with the requirements of the nonpoint source urban runoff wastewater discharge permit 10 Grading for development shall not increase the natural rate of erosion or cause siltation of stream channels Policv C Bioloaical Resources Wildlife and natural plants are a valuable natural resource and should be preserved and protected Strateaies 1 The acquisition and dedication of undeveloped land adjacent to and between existing dedicated open space areas is encouraged to promote large contiguous areas necessary for watershed habitat and viewshed protection If private development is required to purchase and dedicate land to mitigate environmental impacts the acquisition of areas adjacent to existing large permanent open space areas is preferred 2 Biological corridors shall be preserved in order to provide linkages for vegetative and wildlife communities between nonconnective open space areas Special effort shall be made to acquire and preserve the two major wildlife corridors identified in the Detailed Biological Assessment and lands linking open space areas in poway to open space areas in the region such as the Sycamore Canyon County Park and San Dieguito Regional Park 3 Development should not disrupt habitats considered to be sensitive or the habitat of sensitive declining threatened rare or endangered species An assessment performed by a qualified biologist shall be required in areas where the existence of a sensitive species is known or reasonably expected to be present 4 Off road vehicle use is prohibited INCLUDES AMENDMENTS THROUGH GPA 9401 NATURALRESOURCES 53 POWAY COMPREHENSIVE PLAN GENERAL PLAN 5 Access of humans and domestic animals to preserved biological habitats and sensitive biological areas shall be limited as deemed necessary to preserve the integrity of the areas 6 Confinement of horses cattle and other livestock shall not be permitted in natural open space areas or sensitive biological areas 7 Mitigation for significant impacts to biological resources in theform of preservation onsite and offsite or restoration shall be required All preservation and restoration areas shall be dedicated as permanent biological open space 8 The City and development community should use the important biological resource areas as identified in the Detailed Biological Assessment as the foundation for a City wide system of reserves and wildlife corridors Efforts should be made to acquire unprotected lands within and adjacent to these areas through mitigation banking programs or other land transfer and acquisition programs for the purposes of biological resource preservation and natural open space management 9 Require biological monitoring during construction where there is the potential to impact sensitive biological resources Construction monitoring shall be conducted by a qualified biologist and follow the guidelines outlines in the Detailed Biological Assessment to ensure that all construction practices consider the protection of sensitive biological resources both on and offsite 10 Long term biological management plans for open space areas within a proposed development should be developed by a qualified biologist and implemented by the developer 11 Habitat conservation plans should be developed for endangered resources Wildlife 12 The hunting of wildlife shall be prohibited in Poway 13 Development proposals shall consider areas determined to be particularly valuable to wildlife as identified for each quadrant of the City in the Detailed Biological Assessment Efforts shall be made to minimize encroachment into these areas Plants 14 Plant resources particularly large expanses of undisturbed natural areas oak woodlands riparian corridors significant tree stands and sensitive declining NATURAL RESOURCES 54 INCLUDES AMENDMENTS THROUGH GPA 9401 POWAY COMPREHENSIVE PLAN GENERAL PLAN threatened and endangered species should be preserved through appropriate means such as buffering and dedicated open space 15 Large tree stands comprised of oaks sycamores or eucalyptus should be retained and integrated into project designs The understory in these stands should also be retained or enhanced with native species as deemed appropriate by a qualified biologist or native plant horticulturist Areas preserved shall be designated as permanent natural open space 16 A permit is required prior to the removal of any coast live oak holly oak California Sycamore or any tree within the public right of way Policv 0 Archaeoloalcal Sites Archaeological resources are an important part of our heritage and should be preserved and protected StrateQies 1 Archaeological guidelines for the treatment of archaeological resources discovered during the environmental review process shall be implemented These guidelines are on file at the City of Poway 2 The City shall require that all artifacts recovered from sites within poway during environmental impact studies be presented to the City for permanent curation This is also recommended for the sphere of influence The City shall designate a repository Le a museum for the artifacts or direct that a suitable structure be built or converted within the city boundaries to house the collections The City shall ensure the proper treatment of the artifacts by selecting an archaeologist historian to define the necessary elements for curation of specimens as outlined by the National Park Service If the City cannot designate a facility to curate the artifacts then an agreement could be reached with the poway Historical Society or the San Diego Archaeological Society to temporarily curate the artifacts 3 Consider mitigation alternatives which include in kind measures that provide unusual or more beneficial results than the mitigation measures listed in the City archaeological historical guidelines 4 Maintain a listing of significant prehistoric sites and document the locations of all open space easements that include archaeological sites These easements have been granted to protect resources however without acknowledging the locations of such easements the success of the use of such easements for resource protection cannot be assured The City should conduct a research effort to determine where easements for archaeological sites are located especially those INCLUDES AMENDMENTS THROUGH GPA 9401 NATURALRESCXJRCES 55 POWAY COMPREHENSIVE PLAN GENERAL PLAN easements which were inherited from the County of San Diego when the city was incorporated Policy E Historical Sites The historical structures which remain in Poway contribute significantly to the rural small town character of the community and should be preserved StrateQies 1 Complete a comprehensive survey to identify and evaluate historic structures and sites in Poway 2 Maintain a Historic Sites List that will include a register of locations photographs and historically relevant information regarding each site structure or feature recognized as historically sensitive or significant to the city s heritage The Historic Sites List will include as its foundation the criteria for relative categories of significance included in the City s Ordinance 296 The method to be used for adding structures to the Historic Sites List is also provided in Ordinance 296 Prehistoric sites should not be included on this list as it will be available to the public and the locations of significant prehistoric sites should not be made publicly known 3 Support community efforts to register local prehistoric and historic features that fulfill state or federal requirements The basis for the registration of local sites of historic and prehistoric significance will be the Historic Sites List The City shall consider funding a periodic review of the Historic Sites List by a qualified historian for the purpose of completing nomination forms for the National Register and state landmarks list 4 Maintain appropriate legislation to apply alternative building code requirements as deemed necessary on an individual basis to preserve historic structures The City shall also maintain appropriate legislation prohibiting the demolition of an historic structure without an evaluation of the condition of the structure and the costs of rehabilitation 5 Study the feasibility of securing contracts with the owners of historic structures or places to restrict the use or alteration of the property or structures as defined in Government Code Section 50280 et seq for tax advantages in the form of an historic easement In the event that a contract or historic easement is executed the City shall inform the County Assessor of any agreement reached for the purpose of historic preservation and encourage the Assessor to re examine the assessment of the property based upon the agreement NATURAL RESOURCES 56 INCLUDES AMENDMENTS THROUGH GPA 9401 POWA Y COMPREHENSIVE PLAN GENERAL PLAN 6 Prior to the demolition of any historic structure for a definition of a historic structure see Ordinance 296 and the archaeological guidelines filed at the City of poway Planning Services Department that structure shall be fully documented with plans photographs and an archaeological architectural assessment In the event that demolition is permitted for any historic structure within Categories A B or C as described in Ordinance 296 mitigation may be accomplished through the payment of a fee which would be applied to the improvement of Old poway Park The City shall determine an equitable mitigation fee for the demolition of historic structures 7 Mitigation of impacts to significant or sensitive historic structures may be accomplished by moving the structure to a new location within the city This location should be similar in setting to the original site depending upon the uniqueness of the original site 8 Historic structures or places should not be designated for land uses that would lead to their demolition or to a depreciation in their value Adjacent land uses should not conflict with the preservation of an historic structure or place 9 Standards should be developed for community design adjacent to historic structures to preserve the integrity of the structure and its surrounds 10 New development and physical improvements proposed on the east and west sides of Midland Road between Hilleary Place and Twin Peaks Road shall be consistent with the adopted Old Poway Specific Plan GOAL VIII IT IS THE GOAL OF THE CITY OF POWA Y TO MINIMIZE INJURIES LOSS OF LIFE AND PROPERTY DAMAGE RESULTING FROM NATURAL AND MAN MADE HAZARDS Policv D Flood Hazards The public should be protected against potential loss of life and property through regular dam and creek maintenance proper flood hazard management policies and future capital improvements Strateaies Lake poway Dam 1 Lake poway Dam shall receive regular inspections of the embankment spillway and inleUoutlet facilities to ensure safe operation INCLUDES AMENDMENTS THROUGH GPA 9401 NATURALRESOURCES 51 POWAY COMPREHENSIVE PLAN GENERAL PLAN 2 Lake Poway shall be kept at or below the designed high water level to reduce the risk of spilling Natural Watercourses 3 Natural watercourses shall be maintained as the primary flood control channels Where feasible the natural creekside environment shall be preserved 4 Maintain a program to ensure that the floodways are kept free and clear at all times Costs associated with creek maintenance shall be borne by the property owner or the holder of open space easement rights 5 Upstream detention basins shall be constructed on Rattlesnake Creek and the north and south branches of Poway Creek as outlined in the Floodwater Detention Basin Survey published in August 1981 in order to mitigate flood hazards while retaining the natural character of the major creeks and channels Watershed Areas 6 Watershed areas in the eastern Poway mountains should be preserved to maintain the health safety and welfare of residents living adjacent to the City s major creeks in the Poway Valley Financing 7 The City shall explore and adopt appropriate legislation to finance the acquisition and construction of the detention basins including but not limited to developer financing bonds and assessment areas drawn upon drainage area boundaries 8 The cost of improvements to the City flood and drainage control system made necessary by new development shall be borne by the developeL GOAL IX IT IS THE GOAL OF THE CITY OF POWAY TO PROVIDE AN EFFICIENT AND ECONOMICAL PUBLIC WATER AND WASTEWATER TREATMENT SYSTEM TO SERVE THE CURRENT AND FUTURE RESIDENTS OF POWAY Policv B Groundwater Groundwater supplies should be protected and monitored to ensure that overdraft does not OCCUL NATURAL RESOURCES 58 INCLUDES AMENDMENTS THROUGH GPA 9401 t Resolution No 95 096 Page 6 with the requirements of the State of Califomia Natural Community Conservation Planning NCCP Act of 1991 the NCCP Process and Conservation Guidelines NCCP Guidelines as adopted in November 1993 by the California Department of Fish and Game CDFG in collaboration with the U S Fish and Wildlife Service USFWS and the USFWS Federal Endangered Species Act Section 4 d Special Rule for the threatened California gnatcatcher which is incorporated into the NCCP Guidelines The City has received long term permits from USFWS and CDFG which allow for the incidental take of Federal and State listed plant species wildlife species and their habitats Such long term permits will apply to ll public fjR5 m and a private development projectse ew a MtniiaestrftfFdlraoWlftelaanaJea00It ppwBr4 op w r t1 A7MV1 i w teowaytiSubareaJilCJbandtcomgantogjyreelWJAJIjMQH7fWhwAMxmrjMW7W@Vbw whoro cJch reject comply with tho rOCluiremcnt C tho wbjoot documont including the Compensation Mitigation Strategy Mitigation Ratios and Special Development Requirements These documents including the approved environmental review NEPiVCEQA documents are separately bound as an appendix to the Natural Resources Element 2 Goal XlL Pclicy A Planning Strateav 4 shall be amended bv the addition of the followina lanouaae The City shall encourage the neighboring County of San Diego and City of San Diego jurisdictions to cooperatively develop and adopt SL bregional and subarea habitat conservation plans which are consistent with and foster the implementation of the adopted City of Poway Subarea Habitat Conservation Plan and companion Implementing Agreement documents All necessary clerical changes shall be made to the general plan to make its text consistent with the terms of this resolution APPROVED and ADOPTED by the City Council of the City of Poway State of California this 15th day of August 1995 J OLu r liL r Susan Callery Deputy Mayor ATIEST I h Idtc Ma orle K Wahlsten City Clerk POWA Y COMPREHENSIVE PLAN GENERAL PLAN Strateoies 1 Rural land uses may use wells where it is not feasible to connect to the community water supply if it can be proven that an adequate supply of good quality groundwater is available If well water is to be the primary water source the provisions of the groundwater policy of the City shall be fulfilled 2 Agricultural uses are not encouraged on wells that could deplete the groundwater supply GOAL XII IT IS THE GOAL OF THE CITY OF POWAY TO ENCOURAGE REGIONAL COOPERATION AND COORDINATION Policy A Plannina Support the coordination of land use and public facility planning programs among local regional state federal jurisdictions and special districts Strateoies 1 Continue to refer applications for regionally significant development to affected jurisdictions according to the terms of the interjurisdictional memorandum of understanding 2 When considering major changes to its land use program the City will evaluate the impact of proposed changes on regional land use planning and the planning programs of neighboring jurisdictions 3 Continue to support and participate in the San Diego Association of Governments SANDAG regional land use planning programs as consistent with the poway General Plan goals and policies 4 rt Cooperate with regional measures to offset potential wildlife habitat loss or i increase existing habitat such as land banking or open space acquisition and c e 10 rfll preservation programs I I 5 Support regional transportation planning programs which minimize the disruption of externally generated traffic on Poway 6 Support efforts to develop a limited access roadway between 1 5 and 1 15 along the SR 56 corridor INCLUDES AMENDMENTS THROUGH GPA 9401 NA TURALRESOURCES 59 POWAY COMPREHENSIVE PLAN GENERAL PLAN 7 Support and encourage an amendment to the Regional Transportation Plan 1990 to designate South poway Expressway as an expressway to provide the major easUwest route through poway from 1 15 to SR 67 and explore a state route designation for the expressway 8 Facilitate the continued development of a regional trail system to serve equestrians pedestrians and bicyclists NA TURAL RESOURCES 60 INCLUDES AMENDMENTS THROUGH GPA 9401