Loading...
The URL can be used to link to this page
Your browser does not support the video tag.
Home
My WebLink
About
SP 23G; CARLSBAD CORPORATE PLAZA; STANDARD STORM WATER REQUIREMENTS; 2011-04-11
I I I I I I I I I I I I I I I I I I I Planning Engineering Surveying STANDARD STORM WATER REQUIREMENTS FOR CARLSBAD CORPORATE PLAZA 6183 & 6185 PASEO DEL NORTE CARLSBAD, CA Prepared For: CARLSBAD CORPORATE LLC C/O WK DEVELOPMENT 3456 CAMINO DEL RIO NORTH SUITE 202 SAN DEIGO, CA 92108 Prepared By: K&S Engineering, Inc. 7801 Mission Center Court, Suite 100 San Diego, CA 92108 4-JI -.201/ Date April 11, 2011 K&S Job No. 10-038 7801 Mission Center Court, Suite 100 ~ San Diego, CA 92108"' (619) 296-5565 @I Fax (619) 296-5564 I I I I I I I I I I I I I I I I I I I TABLE OF CONTENTS Section 1.0 INTRODUCTION 2.0 PROJECT DESCRIPTION Figure 1 -Location Map 3.0 Low IMPACT DEVELOPMENT (LID) SITE DESIGN BMPS 3.1 MAINTAIN PRE-DEVELOPMENT RAINFALL CHARACTERISTICS Figure -Site Plan 4.0 CONCLUSION ATTACHMENTS BMP INFORMATION CITY SUSMP FORMS E-34 Page 1 2 2 3 3 5 6 I I I I I I I I I I I I I I I I I I 1.0 INTRODUCTION The California State Water Quality Control Board approved Order Number 2007-01 (Order) on January 24; 2007.The Order outlines the stormwater discharge requirements for municipal stormwater sy1;tellls, whi~h drain "development" areas from watersheds within; 1.) The County of San Diego, 2.) Incorporated cities of San Diego County, and. 3.) San Diego Unified Port District. The City of Carlsbad is one of the municipal co-permittees identified in: the order and, therefore, subject to its requirements. According to City of Carlsbad Storm Water Standards Questionnaire E-34, (see attachment B), this project is only subject to the Standard Stormwater Requirements. I ·1 I I I I I I I I I I I I I I I I I 2.0 PROJECT DESCRIPTION The project is located on Assessors Parcel No 211-040-18-00, in the city of Carlsbad, County of San Diego Figure 1 indicates the Project location. The Project site has a total area of 4.58 acres. The existing ~ite consists of two buildings, parking lot, hardscape and landscape areas. The proposed improvements consist on the re-configuration of the parking fot that will create less than 5,000 square feet of impervious area and less then 15 parking spaces. In addition, the re-configuration of the parking lot will incorporate Low Impact Design (LID) by adding more then 5,000 square feet of landscape strips and areas on the parking, disconnecting the runoff generated on-site. In general, project complies with the Standard Stormw~ter Requirements. FIGUREl ·----------------, L---------~--------' 2 I I I I I I I I I I I I I I I I I. I I 3.0 Low IMPACT DEVELOPMENT (LID) SITE DESIGN BMPS Low Impact Development (LID) site desig11 denotes a stormwater management and land development strategy that emphasizes conservation and the use of on-site natural features integrated with engineered, sniall-'scale hydrologic controls that closely reflect pre-development hydrologic functions. Projects address SUSMP objectives through the creation of a hydrologically functional project design that attempts to mimic the natural hydrologic regi:qie. This Project pursues the mimicking of a site's natural hydrologic regime by: 3.1 Maintain Pre-development Rainfall Characteristics: o MINIMIZE IMPERVIOUS SURFACES. -Impervious areas are minimized through the consolidation of various uses within the building structure, providing the minimum number of vehicle parking spaces allowed, providing compact vehicle spaces, utilizing minimum driveway and aisle widths while maintaining sufficient. space for vehicle and pedestrian maneuvering safety. Decorative concrete usage in landscape design is replaced by the use of paver blocks or graveled surfaces wherever needed and possible. o DISCONNECT DISCHARGES. (DCIAs). -DCIAs minimization is accomplished by having the parking lots draining to landscape strip areas. Additionally, rooftop drainage discharges will also drain into landscape areas before collection by area drains. These measures disconnect the paved surfaces and roof areas from direct connection to the MS 4; o CONSERVE NATURAL AREAS. -The Project site is a parcel previously developed area thereby negating the presence of natural areas. The site contains no natural resources or areas for conserving. Additionally, earlier disturbance of the site altered natural drainage courses. o STENCILING INLETS & SIGNAGE. -Any existing public storm drain inlets affected by project drainage (if not already signed), as well as all on-site private inlets, will be posted with signage, stamped or stenciled (as appropriate to location) to provide notice against illegal dumping of pollutants with prohibitive language or graphics to the satisfaction of the City Engineer. These warnings shall be maintained for legibility throughout the development's existence. The owner will provjde information to increase the knowledge of tenants/employees/future owner(s) regarding impacts of pollutants and urban run-off on receiving waters and potential BMPs for the specific land use to affect the behavior of tenants/employees/future owner and thereby reduce pollutant releases to the environment. o LANDSCAPE DESIGN .. -Landscape irrigation systems shall be of an efficient design with respect to each landscaped area's plantings specific water requirements. Maintenance of system installations on a regular and timely basis prevents over-watering and the transport of silts, sediments, fertilizers and pesticides into the storm drain system. Rain shut-off devices or moisture sensors shall be integral to the operation of the irrigation system to avoid unnecessary irrigation during wet weather conditions. Installing flow reducers or shut-off valves control loss of water due to unexpected pressure drops or other type of system compromise. Pest resistant, drought tolerant or native plants (per landscape architect plans) are used throughout the Project. 3 ·I I 1· I I 1. I I I I I I I I I I .I I I o W AIBR EFFICIENT IRRIGATION. Applicants shall design new irrigation systems to reduce over-irrigation, e:rp.ploy rain shutoff devices preventing irrigation after rainfall events and minimize unnecessary runoff per chapter 18.50 of the Municipal Code and the City L.andscape Manual.. o PROTECT SLOPES AND CHANNELS. There are no natural drainage patterns to preserve. The existing, slopes will be protected with landscape and by not draining directly onto slopes. o TRASH STORAGE AREAS. -All trash storage areas shall have concrete enclosures of masonry screen walls with gated openings. The trash containers have integral, locking lids that remain dosed when not in use. The containers are stored on a concrete pad graded to preclude run-on of drainage flows from adjoining areas. In addition, all refuse and recycling storage areas are covered with a roof or awning. No trash or recycling materials are stored outside of the properly designated containers. Removal is on a regular basis or when dictated by containers reaching capacity. The runoff from the trash storage areas will drain directly towards a vegetated bio-swale. o OUTDOOR MATERIAL STORAGE. -Tb.ere is no planned outdoor storage of any types of materials. All material storage areas are ·located indoors. If temporary outdoor storage is necessary, the area will be in an appropriate enclosure with a roof or overhang that prevents contact with rain. Preclude runoff or spillage to the stormwater conveyance system with secondary containment structures such as berms, dikes or curbs. 4 I I I I I I I I I I I I I I I I I I I !PIJ'®n®©tt o[Ji)ff@IJ'[Ji])@tt~®!ID @~lt@ IMJ@W) !?~@(Y]IJ'@ ~ 5 I I I I I I I I I I I I I I I I I I I I CARLSBAD CO.RPORA TE PLAZA ; ,~ EXISffiG IUDIHG8 ~--,.,,... / 4¥12 Sf. • ~: ,/,_.,?' =="'=~~~~~,; I onm -; ,,<! r----___ ..rl _ _,., _.,,.....-;;-/ ,,,/I o D -~/ A ,,>-;;;/4 ,,,..,_ &1 /-:--/ 11 ·,. "rn -I />" . ,-"'' "'' ' ' .,/"' ,.t( oJ //p··..,_--~--"-"" ___ ..,,)\, I / .. ---:., ·. r/ f ·-,:::~ -·-,-,__..-; c)r:··. "tl',,.-' ;~i -/ ··~:> .. -- :,-,:,; ~-:;;1., '' y t/<'· : ,,;, ---.,,,~ . .., .... tt.,t.,,, ~"' '.d'--... ,:·1'~ ,,, ·-."1---~ •..__7 / _,....,.;.-J / ··--"'--..., ""'\,~ .. ·,., ............ ~. / . .' / ll'"'·"/,"77:'X· ·j \\~)¼;,-',,-,~: :1,.-:.://.-. ' - ' ~-- "·-'.;· ... 1-.;_8. "::. ... / . ~ ,,· ~<·:·-1 ~r> ~ -~-i/ "I!,-',.; ..... ,;._ · .... ......_ ... , ·,, ' ··~· ..... ·-.,_ ' '-----,.._ ...... ·-':$ .,,_,,. / ' / / '· ,/-. '\:t. J -0 0 l l \~ \ ' ~-- . ---. / / ____ , -'"..,,0--u / '\, _.) .,,.,,._._ ... .rl':-"'· y ' I f ,. ' ' ., l/ -..-:~ \ --~l~ .\ '-~ ' ' ' ·, '\'-~._, .~ ', ; / ' ', . ' _..- ·, / ?•' ,,..·-:'-··~ .· .; " ~ ~ / ·,· / , .. ,' . , . _.::-(()1/ ._,,, I . q ,· •• ,' ,' ;', • I <-' r• I ' .. :1/4/ /:,:0~/:. ·. -_// /_(/# ~ ;;·· . ,. ~-. ' -. -. : .' ,.,_, ,~ :r ., :.. .. ,<' ·/ , / . ..., ·'.-:,/ I I /, ,,-;,' / .:/: ,. ·, r }' f_j_· ,.-:· \' ,\ I ~ ' ~\ \ \ \I \ \ \ \ _/ . .,;:; ,•' ... ~ 't LEGEND ~ r-~ AREA OF EXISllNG PLANTER m BE REPLACED \\llH PAVEMENT t/,¾0-'J11 i 1 i AREA OF EXISTING PAVEMENT TO BE REPLACED \\l1H PLANlER t • · • · · .·.·.·>I ,, -=i 4i° sr SCALE: 1"=20' IF PLAN SIZE IS LESS THAN 24 "zSB", THIS IS A REDUOED COPY. SCALE PLAN ACCORDINGLY. ·1 < i ! ~ i :J I I ~ ! G l!J ~ ~ 1l 0 ·31 f ~11 CITY OF CARLSBAD IISHEETSI L_J__j EN611-EERI~ DEPARTMENT 1 CARLSBAD CORPORA TE PLAZA 6183 & 6185 PASEO DEL NOR1£ CARLSBAD, CA APPROVED: ~ -~E'IRES: OWNBY§· I CHKD BY: __ _ RVWD BY:-- r,~ .,.,n,.,.,.,c -.;;J PROJECT NO. IIDRAWl~G NO.I f'U\M1 -- . -----~~------______....-- CARLSBAD CORPORATE PLAZA UDINGI ~1ZSF. / > ,, ~~~ /,~,_,/' I •. r"' ·1//~7::/1/ : 'I . //,I / //4 __ _d .,,. .,,,,,. _,,,..,l D .,, . .-••¼/ C ~/1}' -· /.,>., //,,,?-' ,-,;t; . ,--:r/. ,,F/ '<:_:11 F !)})."· . ,/ ... ~0' I , ·->' '··<)) .,., 00011 6. (~ 6. r,:~1 6. r./1 6. ..... ~, iS,,J......,, .• .....__ ,,,.;._ __ '\• . ~-----... ...,,,.. '\ ;.,·1 . --~ '---~ .-. " ' ""·~ -.. ... ,,~ 0 ll-"::/ -~--IIIJIDING.A : l~:;;,,,-:~1/,,--:;-/ ~33,332 SF. I-~~::,:'.'//:_:> ,,,-,<7.?":; -y OfflCE UDING o ___ v .-:::::<.-:/'..!I -:: = ---'<'l 7-· .!r=Tr~·;l·:i~-(}· t.11 11-:V ~ / -74.o~......._ . . ~ . -' . / / .. -~ 7 l,. 0 --~~- "-., .,,....._ ' "· ........ . .,____ ___ ...... _ .... , "~ ·-.. ~~ ."'·-, /,t ...,_,, .· . f .,. ->-,, / / ~-......... ~. I ---"----""-.. ', ......... t,-. ..... •?, -'~ I / ~. '· ($ ;1 6 f"i r,; I' r . ,.. __ p) I 1 ;::: \ \ \~\ ,;, \ \ ~ . \ 'i ' \ \'. \ '. \ I / I i\',~\'-\\\ ''\ \ LANDSCAPE STRIP~,ef, l,,,,_,..,~"\ \~>\~-':,:\\~\'-\\ LOW IMPACT DEVELOPMENT\ -'.\,·/ \ \\ \ , \\ \\\ f "' '. . . \' ,, \ { >, ; ', \' I +> \ ' ' \ \'\• . \,'<;\ \ \, \ \ ,., i" , / _ __..,....,.,.,/,..--:."?' .,.-, /,,_!: ,,."""". : /---,r/ t --.. . ___ .... . / ··. , . ~-II // ~-~~.,, i.4' /'' / .tr ~.t / I_/ __ ,: I . , ,;. ' ,· ,.,./ ' f:. I /-'o ' ,!:* ./ .. f-~ ' {-I .;:JI. ,• .,:: ,~ .{!··..., I/ / /! J , , 1,), VT(•) l( I _& , , I l.l I ., !l •/, ' . . -~-. \. ·, \,: ' '\ ~.: \\\\ \ /' \ . \ \ .. \ . . ,~~---'\ •\ '\~\\ \ ·-:;\. I . . \"' i, ..,._ I '\' \'~t-----l. • .... ~,1 ~. . ;:;;! ~ '\ ' ~> 'f. \ fQ \ \' \ ·,, 1-\._.:\:. \\ \ . \ '{:, } . ·\ \ ~\·, l ' \ .... 'I\ ' / ', ,:;, ' \• ', ·-" \ . ·. ' . ''\\ \\ \ --./ \ \ '·, ~-\ \ ~,._.,v' •, \ \ \ \ _.«-I \ • . -~-j' I \ (\ i ' :, ! ' ' / "-' \ I ~, I' I ;, /2 ·' ~ \ i:l' \ -.. /4 _;'/ ., / ·' . ,.~:~ :·~/i" ?-'/ _,..._,j, ll ',,._.,. ,/, -~-:--;;·;;· ~ \ LEGEND LANDSCAPE SlRIPS [·.·.·.·.·.·.·! p -=:l 41° SCALE: 1"=20' IF PLAN SIZE IS LESS THAN 24·%36~ THIS IS A REDUCED COPY. SCALE PLAN ACCORDINGLY. 61° ~11 CITY OF CARLSBAD WHEETS I Ll_J ENe.lNEEF?INI; PEPAATMS>IT 1 CARLSBAD CORPORA TE PLAZA 6183 & 6185 PASEO DEi. NORlE CAR!BBAD, CA ~: ~---EXPIRES: -·-· ------·---DATE ~ DWNBV,-~-I CHKD BY:--RVWD _l'lY:-- PROJECT NO. rA~~G N0. 1 CMWD ~ l .. ~ .; ~ t! ,-~ f I I ~ I ;;, -~ i I I 3: I I I I I I I I I I I I I I I I I I I 4.0 CONCLUSION This letter has shown LID site design that should satisfy the requirements identified in the Order and City of Carisbad SUSMP Standards and all Ordin,ances related to Water quality. This report insures, to the maximum extent practicable, that the parking lot re-configuration does not increase pollutant loads from the site. Addit10nally reduces impervious ar¢as, allowing runoff infiltration. 6 I I I I ATTACHMENTS I I I I I I . I I I I I I I I I 8 I • ! • I . ., .. .. POOR· . ·QUALITY .. · 1-~-f. ~ . r, ; ! . . ' .· · O·RIGINAL S f • ~ ·,r I I I I I I I I I I I I I 1: I I I I I Description Design Objectives :we '9 :. Q,: rn:-ii"-$'=,):,..l'Yiim" cc:·==--~ @ Maximize Infiltration · @ Provide Retention @ Slow Runoff @ Minimize Impervious Land Coverage · Prohibit Dumping of Improper Materials Contain Pollutants Collect and Convey Each project site possesses unique topographic, hydrologic1 and vegetative features, some of wbich are more suitable for development than otl1ei-s. Integrating and iJ.icorporating approp1iate landscape planning methodologies into tl1e project design is the most effective action that can be done to minimize smface and groundwater contamination from stonm't"ater. Approach Laudsc.ape planning should coupl~ consideration of land suitability for urban uses with considerat;iou of cormnmritygoals aud projected grm\1:b. Project plan desigus should couserve 1iat1.µ:al &reas to the a1:eut possible, maximize natural water storage aud infiltration · opportunities, and protect slopes aud cluuinels. Suitable Applications Appropriate applications iuclude residential, conunercia1 and industrial areas planned for development or rede,1elopment. Desioll Considerations Design requiremeuts fo1· site design and Iaudscapes plamring should conform to applicable staudards and specifications of agencies ·with jmisdictiou and be consistent with applicable Geueral Plan and Local Area Plm1 policies. January 2003 California Stormwater BMP Handbook New Development and Redevelopment www.cabmphandboor.s.com ~-- ASQ ;-'i! 'H'.'{.1~!\1 \ t:'f(lR,9~\to·"t l'fti lf ·- 1 of4 I I I I I I I I I I I I I I I I SD-10 Site Design & Landscape Planning Designing New Installations Begin tl1e development of a plan for the landscape unit with attention to the following general p1inciples: • Formulate the plan 011 the basis of clearly articulated community goals. Carefully identify conflicts and choices between retaining and protecting desired resources and community gro\\1:h. ii 11:ap and assess land suitability for urban uses. fuclude the followi11g landscape features in the assessment: wooded land, open unwooded land, steep slopes, erosion-prone soils, foui1datio11 suitability, soil suitability for waste disposal, aquifers, aquifer recharge areas, wetlands, floodplains, surface ·waters, agricultural lands, and ,18lious catego1ies of urban land use. When approp1iate, the assessment can hlgliligl1t outstanding local or regional resom·ces thatthe commmrity deternrines should be protected (e.g., a scenic area, recreational area, threatened species habitat, farmland, fish 1·m1). Mapping and assessment sl1ould recognize not 01ily these resources but also additional areas needed for tl1eir sustenance. . . Project plan designs should conserve natural areas to the e:,...1:ent possible, maximize natural water storage and infiltration opportunities, and protect slopes and cliannels. Consel'lJe Natural Areas during Landscape Planning If applicable, tl1e following items are required and m~ be implemented in the site layout during the subdivision design and approval process, consistent witl1 applicable Gene.ra1. Plan and Local Are~ Plan ·policies: • Cluster developmenton least-sensitive portions of a site while leaving the remaining Jand in a natural m1disturbed condition. • Limit cleating and grading of native vegetation at a. site to the minimum amount needed to build lots, allow access, and provide fire protection. • Maximize trees and other vegetation at each site by planting additional vegetation, clustering tree areas, and promoting the use of native and/or drought tolerant plants. • Promote natural vegetation by using parking lot islands and other landscaped are.as. • Preserve 1ipa1ian ateas and wetlands. Maximize Natural l1'ater Stomge and I1'1filt1·(1.tio1i Opportunities Witlzin tlle Landscape lTnit • Promote the conservation of forest cover. Building on land that is already deforested_affects basin hydrology to a lesser a1:ent than conveiting forested land. Loss of forest cover reduces interception storage, detention in the organic forest floor layer, and water losses by evapotranspiration, resulting in large peak rm1off increases mid either their negative effects or the ~~-pense of countering them with structural solutions. • Maintain natural storage reservoirs and drainage corridors, including depressions, areas of pem1eable soils, swales, and internrittent streams. Develop mid implement po1icies and 2 of 4 California &tormwater BMP Handbook New Development and Redevelopment www.cabmphandbooks.com January 2003 I I I I I I 1, I I 1· I I I I I I I I I Site D_esign & Landscape p·Ianning SD-10 regulations to discourage the clearfog, filling, and channelization of these features. Utilize them in drainage netw'Orks in preference to pipes, culverts, and engineered ditches. • Evaluating.infiltration opportunities by referring to the stormwater management mmmal for the jurisdiction and pay particular attention to the selection c1iteria for avoiding groundwater contamination, poor soils, lQJ.d hydrogeological conditions that cause these facilities to fail. If necessary, locate developments with large amounts of impervious smfaces or a potential to produce relatively contaminated runoff aw·ay f:re>m groundwater recharge areas. Pl'otecti.01z of Slopes and Channels dul'ing Landscape Design • Convey mnoffsafely from the tops of slopes. • Avoid disturbing steep or Unstable slopes. • Avoid distm·bing natural channels. • Stabilize disturbed slopes as qm.ckly as possible. • Vegetate slopes v~itl1 native or drought tolerant vegetation. ii Coutrol and treat flows in landscaping and/or other controls prior to reaching existing natural drainage systems. • Stabilize temporary and pem1anent channel crossings as quickly as possible, and enslll'e that increases in 1·m1-off velocity and frequency caused by tl1e pmject do not erode tlie cl1annel. • histall energy dissipaters, such as riprap, at the outlets of new stonn drains~ culverts, conduits, or channels tliat enter unlined channels in accordance with applicable specifications to minimize erosion. Energy dissipaters sl1all be installed in such a way as to minimize imp~cts to receiving waters. • Line on-site conveyance channels where appropriate, to recluce erosion caused by increased flow velocity due to incre~es in tributary impervious area. The first d1oice for linings should be grass or some other vegetative s1,11face, since tl1ese materials not only reduce 11llloff velocities, but also pl'Ovide Vvater quality benefits from filtration and infiltration. If velocities in the channel are high enough to erode grass or other vegetative linings, riprap, concrete, soil c.emeJ1t, or geo-grid stabilization are other alternatives. • Consider other design p1inciples that are comparable and equally effecti\•e. Redeveloping .&isting Installations Various jmisdictional stom1water management and mitigation plans (SUSMP, \\TQMP, etc.) define "redevelopment" in terms of amouuts of additional impervious area, increases in gross floor area aud/or exterior construction, and land disturbing activities \\.itl1 structural or impervious surfaces. The definition of" redevelopment" must be consulted to detemline whether or not the requirements for new development apply to areas intended for redevelopment. If tlie definition applies, the steps outlined under "designing ne\\T installations" above should be followed. January 200; California Stormwater BMP Handbook New Development and Redevelopment www.cabmphandbooks.com 3 of4 I I I I I I I I I I I I I I I I I I SD-10 Site Design & La·ndscape Planning Redevelopment may present significant opportw1ityto add features \\•l:ricl1 had not previously been implemented. Ex8Jl1ples include incorporation of depressions, areas of permeable soils, and swales in newly redeveloped m·eas. '\'\7llile some site constrain~ may exist due to the status of already existing infrastructure, oppoitunities should not be missed to ma.mnize infiltration, sfow rw1off, reduce impe1'\'ious areas, disconnect directly connected impervious areas. Olher Resources A Manual for the Standard Urban Stom1water Mitigation Plan (SUSMP), Los Angeles County Department of Public Wor~, May 2002. · Sto1111water Management Manual for Western Washington, Wasl1ington State Department of Ecology, August 2001. Model Standard Urban Storm Water Mitigation Plm1 (SUSMP) for San Diego County, Po1t of San Diego, and Cities in Sm1 Diego County, Februaiy-14, 2002. Model '\'\Tater Quality Mai1age1µent Plan (WQMP) for Comity of Orange, Orange County Flood Control District, and the IucorporatedCities 9f Ornnge Comity, Draft February 2003. Ventura Countywide Teellnical Guidal).ce Manual for Stormwater Quality Conb.-ol Measmes, July2002. 4of4 California Stormwater BMP Himdbook New .Development and Redevelopment www.cabmphandbooks.com January 2003 I I I I I I I I I I I I I I I I I I I Efficient Irrigation SD-12 Design Objectives 0 Maximize Infiltration 0 Provide Retention 0 Slow Runoff Minimize Impervious Land Coverage Prohibit Dumping of Improper Materials Contain Pollutants Collect and Convey Description ---""9 ' -·-·----·- Ir1igat10n water provided to landscaped areas may result in e.,rcess inigation ·water being conveyed into stonnwater drainage systems. Approach Project plan designs for developinent and redevelopment should include applie.ation methods of iriigation V{ater that minimize 11111off of excess irrigation Water into the stom1water conveyance systeni.' , · Suitable Applications Approp1iate applications tnclude residential, commercial and industrial areas planned for development or redevelopment. (Detached residential single-family homes are typically excluded from this requirement.) Design Considerations Designing New Installations TI1e follm\.ing methods to reduce excessive irrigation 111noff should he considered, and inco1'i,x>rated and implemented where detern1ined applicable and feasible by tl1e Permittee: • Employ rain-niggered shutoff devices to prevent inigation after precipitation. • Design irrigation systems to each landscape area's specific water requirements. • Indude design featuring flow reducers or shutoff valves triggered by a pressure drop to control water loss in the event of broken sprinkler heads or lines. • finplement landscape plans oousistent with Comity or.City water t'.onservation resolutions, which may :include provision of water sensors, p:,;ogranunable ir1igation times (for short cycles), etc. ' I M iKJ1s,1 \ <,(lll.'l,j\\ ,\ l!Jt January 2003 California Stormwater BMP Handbook New Development and Redevelopment www.cabmphandbooks.com ,. . 1 of2 I I I I I I I I I I .1 1. I I I I I I I SD-12 Effici.ent Irrigation • Design timing and application li1ethods of irrigation water to miuimize the ronoff of excess irrigation water into the sto1m water drainage systenL Iii Group plants ·with sbnilar water requirements in order to reduce excess irrigation runoff and promote smface filtration. Choose plants \\.ithlow ir1igatio11 requirements (for example, native or drought tolerant species). Consider design features such as: Using mulches (such as wood chips or bar) in planter areas without ground cover to minimize sediment in runoff Installing appropriate plant materials for the location, in accordance witl1 amount of sunlight and climate, and use 1~ative plant matedals ,,i-here possib]e and/or as recommended. bytl1e landscape architect Leaving a vegetative banier alongtl1e property boundary and interior watercourses, to act as a pollutant filter, where approp1iate and feasible Choosing plants that minimize or eliminate the use of fertilizer or pesticides to sustain growth • Employ otl1er comparable, equally effective metliods to reduce·irrigation ·water runoff. Redeveloping &isting Installations Various jmisdictional sto1mwateJ.· management and mitigation plans (SUSMP~ °\'VQMP, etc.) define· "redevelopmenr in tenus of amounts of additional i1npei"\ious area, increases in gross floor area a1J.d/or e.>..-te1ior constmction, and lai:id disturbing activities. with structural or impervious su1faces. TI1e definition of" redevelopment" must be consulted to determine whether or not the requirements for new devefopri1ent apply to areas intended for redeyelopment. If tl1e definition applies, the steps outlined wider .. designing new installations" above should be followed. Other Resources AM:anual for tl1e Standard trrban Stom1water Mitigatiou ,Plan (SUSMP), Los Angeles C-0u11ty Department of Public Works, May 2002. Model Standard Urban Storm Water Mitigation Plan (SUSMP) for San Diego Comity, Port of Sau Diego, and Cities in Sau Diego C.ounty, February 14, 2002. Model V\7ater Quality Management Plan (WQMP) for County of Ora11ge1 Orange County Flood Control District, and the Incorporated Cities of Orange Connty, Draft Februacy 2003. Ventura Couutywide Technical Guidance Manual for Sto1111water Quality Control Measures, July 2002. 2 of2 California .Stormwater BMP Handbook New Development and Redevelopment www.cabmphandbooks.com January 2003 I I I I I I I I I I .1 I 1. I I I' I I Storm Drain Signage De$cription SD-13 Design Objectives Maximize Infiltration Provide Retention Slow Runoff Minimize Impervious Land Coverage li:1 · Prohibit Dumping of Improper Materials Contain Pollutants Collect and Convey '\\1 aste materials dumped into storm drain inlets can have seve.re iinpacts on receiving and grQund waters. Posting notices regarding discl1arge prohibitions at stonn drain iulets cpn prevent waste dumping. Storm drain signs and stencils are highly·visible source controls that are typically placed directly adjacent to storm drain iiilets. Approach The stencil or affixed sigi1 contains a brief statement that prohibits dumping of improper materials into the urban nmoff conveyance system. Stortn drain messages have become a · popular method of ale1ting tl1e public about the effects of and the prohibitions against wa...<tte disposal. Suitable Applications Stencils aud signs alert the public to the destination of pollutants discharged to the storm drain. Signs are approptiate in residential, commercial, and indushial ai·eas, as well as any otl1er area where contributions or dumping to stonu drains is likely. Design Consider.ations Stonu drain message markers or placards are recommended at all stonn drain inlets Vtithiu the bom1daiy of a developmeut project. The marker should be placed in clear sight fadug tmvard ai1yone approaching tl1e inlet from either side. All storm drain inlet locations should be identified 011 the development site map. Designing New Installations TI1e following methods should be cousidert;d for inclusion in the pr~iect design and show on project plans: • Provide stenciling or labeling of all storm drain Wets and catch basins, constructed or modified, within the project area ,,itb prohibitive lai1guage. R1'amples include "'NO DUMPING January 2003 .California Stormwater BMP Handbook New Development and Redeveiopment www .cabmphandbooks.com -~~ ASQ t <\Jr-=l'•',i"',.!'\~'i.t}ri-1h \ff.if, I' l< 1 of 2 I I I I I I I I I I I I I 1· 1· I I I I Storm Drain Signage -DRAINS TO OCEAN" and/or other graplrical icons to discourage illegal dumping. • Post signs with prohibitive language and/or graphical icons, which prohibit illegal dmnping at public acce.ss points along channels &11d. creeks ,ritlrin the project area. Note -Some local agenci~s have approved specific signage and/or:storm dmin message plac.ards for use. Consult local agency stormwater staff to detennine specific requirements for placard t;ypes and methods of application. Redeveloping Eristing I1111tallations Various.jurisdictionalstonnwater management and nlitigation plans (SUSMP, ·wQMP, etc.) define "redevelopment" in tem1s of amounts-of additional impervious area, increases in gross floor area and/oi· exterior construction, and land disturbing activities ·with structural or impervious surfaces. If the project meets the definition of "redevelopment", then the requirements stated under" designing new installations" above should be iilcluded in all project design plans.· Additional Information Maintenance C,0nsideratio1111 • Legibility of markers and signs should be maintained. If required by the agency with jurisdiction over the project, the m\•ner/operator or homeown¢r's association should enter into a maintenance agreement ·with the agency or record a deed restli.ction upon the property title to maintain tl1e legibility of plac.ards or signs. Placement • Signage on top of curbs tends to weather and fade. • Signage on face ofcurbs tends to be worn by contact ,-.itli vellicle tires and sweeper brooms. Supplemental Information ~amples • Most MS4 programs have storm drnin signage programs~ Some :MS4 programs will provide stencils, or arrange for volunteers to stencil stonn drains as part of their outreacli program. Other Resources A Manual for the Standard Urban Stormwater Mitigation Plan (SUSMP), Los Angeles C.ounty Department of Public Works, May 200~. Model Standm-d Urban Storm Water Mitigation Plan.(SUS:MP) for Sm1 Diego County, Port of San Diego, mid Cities in Sm1 Diego County, Febnuny 14, 2002. Model Water Quality Management Plm1 (\VQMP) for Comity of 0l'ftnge, Orange County Flood C.ontrol Distlict, and tl1e Inco1porated Cities of Orange C.ounty, Dmft February 2003. Ventura ColUltywide Technical Guidm1~e Mmmal for Stonnwater Quality Control Measures1 July2002. 2of2 California Stormwater BMP Handbook New Development arid Redevelopment www.cabmphandbooks.com January 2003 I I I I I I I I I I I I I I I I I I Trash Storage Areas Description T1·ash storage areas are areas ,\i1ere a trash receptacle (s) are located for use as a.repositocy for solid wastes. Sto11nwater runoff from areas where trash is stored or disposed of can be polluted. In addition, loose trash and debris can be easily tl'~nsported by water or "'ind iuto nearby storm drain inlets, cl1annels, and/or creeks. ·waste handling operations that may be sources of stormwater pollution include dumpsters, litter control, and waste piles. . Apprqach This fact sheet contains details on the specific measures required to·prevent or reduce pollutants in stormwater runoff associated "'itl1 trash storage and hanclliug. Pre\rentative measures including enclosures, co1itaimue1it sh11ctures, and impenrious pavements to mitigate spills, should be used to reduce the likelihood of contamiuation. Suitable Applications SD-32 Design Objectives Maximize Infiltration Provide Retention Slow Runoff Minimize Impervious Land Coverage · Prohibit Dumping of Improper Materials 0 Contain Pollutants Collect and Convey Approp1iate applications iuclude residential, commercial and industrial areas planned for development or redevelopment. (Detached residential single-family homes are typically excluded from this requirement.) Design Considerations Design requil'emei1ts fo1· waste liandling areas are governed by Building and Fil'e Codes, and by current local agency ordinances and zoning re~rements. TI1e design c.rite1ia descnoed in tlris fact sheet are meanno enl1ance and be consistent with these code and ordinance requiren1ents. Hazardous waste should be handled in accor~1ce V\'ith legal requirements established in Title 22, California C.ode of Regulation. v\Tastes from commercial and iudustri~ site.s are typically hauled by either public or commercial carriers that may have design or access requirements forwaste storage areas. The design crite1ia in this fact sheet are recommendations and are not intended to be in conflict ·with requirements established by fue waste hauler. TI1e waste liauler should be e.ontacted prior to fue design of your site h"8Sl1 collection areas. (.onflicts or issues should be discussed ·witl1 the loe.al agency. Designing New Installations Trash storage areas should be designed to consider the follm\i:ing sh11ctural or h'eatment control BMPs: • Design trash container areas so that drainage from adjoining roofs and pavement is diverted around the area(s) to avoid run-on. Tbis might include be1m~g or grading the waste handling area to prevent run-on of stormwater. • Make sure h'8Sh container areas are screene<l or walled to prevent off-site transport of trash. January 2003 Californla Stormwater BMP H?indbook New Development and Redevelopment www .cabmphandbooks.com ~--- ASQ t·t;.1 U'{\.".t\.i-%'-i'R1R\-i\\'.\H '! ' 1 of2 I I I I I I I I I I I I I I I I I I I SD-32 Trash Storage Areas • Use lined bins or dmnpsters to reduce leaking of liquid waste. • Provide roofs, awnings, or attached lids on all trash containers to minimize direct precipitation and prevent rainfall from entering containers. • Pave trash storage areas with an impervious surface to mitigate spills. l!I Do 11.ot locate storm drains. in :immediate vicinity of the trash.storage area. . • Post signs on all dumpsters informing users that hazardous mate1ials are not to be disposed of therein. Redeveloping &isting Installations Va1ious jurisdictional stonm,"3.ter management and mitigation plans (SUSMP, ·wQMP, etc.) define "redevelopment" iii temis of an1onnts of additional nupervious area, increases in gross floor area and/or exterior constructi.011, .and la1_1.d disturbing activities with structural or impervious surfaces. TI1e definition of" redevelopment" must be consulted to determine ,,,hether or not the requirements for new development apply to areas intended for redevelopnieut. If the definition applies, the steps-outlined under "designing new installations~' above should be followed. · Additional Information Maintenance C.,onsiderations The integtjty of structural elements that are subject to damage (i.e., ~~eens, covers, mid signs) must be maintained by tl1e owner/operator. Maili.tenance ~greements beuveen tlie Ioc.al agency and the owner/operator may be required. Sqme age1icie~ ,..,,ni require maintenance deed 1·estrictio11s to be recorded of tl1e propertytitle. Ifrequired by the local agency, maintenance agreements ot deed restlictious must be executed by the owneT/operator before improvement plans are approved. Other Resources A Manual for tlie Standard Urban Stormwater Mitigation Plan (SUSMP), Los Angeles Comity Department of Public Works, May 2002. Model Standard Urban Storm Water Mitigation Plan (SUSMP) for San Diego County, Port of San Diego, and Cities in San Diego County, February 14, 2002. Model ·watei· Quality MlP}agement Plan (WQMP) for County of Orange, Orange County Flood Contt-ol Dishict, and tlie Incorporated Cities of Orange Co1mt}; Draft Febmary 2003. Ventura Cmmtywide Teclmi~ Guidance Manual for Stormwater Quality Control Measures~ July2002. 2 of2 California Stormwater BMP Handbook New Development and Redevelopment www.cabmphandbooks.com ,,I January 2003 I I I I I I I I I I I I I I I I I Outdoor Material Storag_e Areas SD-34 Description Design Objectives Maximize Infiltration Provide Retention Slow Runoff Minimize Impervious Land Coverage • Prohibit Dumping of Improper Materials li'.J Contain Pollutant Collect and Convey Proper design of·otltdoor storage areas for materials reduces opportunity for toxic compotmds, oil and grease, heavy metals, nutrients, suspended solids, and other pollutants to enter the stormwater conveyance system. Mate1ialsmay be in the fonn of raw products, by~products, finished products, and waste products. 'I11e type of pollutants associated ·with the matelials ·will vacy depeudi1ig on the type of co1mnerci~ ~rindustrial acti\i.ty. ,Approach 'Outdoor storage areas require a drainage approach different from the typical infiltration/detention strategy. In outdoor storage areas, infiltration is discouraged. C-011tai11ment is encouraged.· Preventative measures include enclosures, secondary containment structures and impervious smfaces. $uitable Applications Appropriate applications include residential, commercial and industrial areas planned for development or redevelopment. Design Considerations Some materials are more of a co11cem than others. Toxic and hazardous mate1ials must be preveJ1ted from coming in contact with stormwater. Non-toxic or non-hazardous matelials do not have to be prevented from stonnwater contact. However, these matelials may have toxic effects on receivlllg waters if allowed to be discharged '\\>ith stotmwater in significant quantities. ACCUlllulated 111ate1ial on au impervious smface could result iu significant impact on the rivers or streams that receive the runoff. Material may be stored in a va1iety of ways, including bulk pilesf containers, shelving, stacking, and tanks. Stormwater contrunination may be prevented by elinrinating the possibility of stormwa.ter contact with the matelial storage areas either through diversion, cover, or tapture of the stormwater. Control measures may aJso include minimiziug the storage area. Design January 2003 California Stormwater BMP Handbook New Development and Redevelopment www.cabmph1:mdbooks.com ~.-- ASQ t"I\! fH);~~.:1-\~t1f1.\J\", i.fl-'~ ' "f, I 1 of 3 I I I I I I I I I I I I I I I I I SD-34 Outdoor Material Storage Areas requirements for material storage areas are govemed by Building and Fire Codes, and by current City or County ordinances and zoning requirements. Control measm·es are site specific, and must meet local agency requirements. Designing New Installations Where proposed project plans include outdoor areas for storage of matelials that may contribute pollutants to tl1e stormwater conveyance system, the following structural or treatment BMPS should be considered: • M:atei.ials with the potential to contaminate storm,\•ater should be: (1) placed in an enclosure such as, but ~ot limited to, a c.abinet, shed, or similar structure tliat prevents contact witl1 runoff or spillage to thestormwater conveyance system, or (2) protected by seconda1y contahm1ent structures sucl1 as berms, dikes, or curps. • The storage area should be paved and sufficiently impervious to contain leaks and spills. • The storage area should slope towards a dead-end sump to contain spills and direct rlllloff from downspouts/roofs should be directed.away from storage areas. • The storage area should bave a roof or aw;ning t11~t extends beyond the storage area to minimize collection of stormwatei.· ·within the secondru.y containment area. A manufactured storage shed may be used for sm,all containers. Note that tl1eloc.ation(s) of installati9ns of where tliese preventative :measures will be employed must be included on the map or plans ideiltifyiltg B:MPs. Redeveloping ,existing Installations Various jmisdictional stomnvater management aµd mitigation plans (SUSMP, WQMP, etc.) define "redevelopment" in terms of amom1ts of additional impervious area, increases in gross floor &rea and/or exte1ior construction, and land disturbing activities ·with structural or impervious surfaces. TI1e definition of" redevelopmellt" i11ust be consulted to determine wbetl1er or not tlie requirements for new development apply to areas intended for redevelopment. If the definition applies, the steps outlined m1der "'designiug new installations" above should be followed. Additional Information Stormwater and non-stonnwater will accumulate in containment areas and sumps with impervious surfaces. Contamh1ated Jt.Ccumulated water must be disposed of in accordance l\.itl1 applicable I.aws and cannot be discl1ar~ed directly to tlie storm drain or sanitary sewer system "\\itbout tlle appropriate permits. Other Resources A Manual fortl1e Standard l;Jrban Stom1water Mitigation Plan (SUSMP), Los Angeles County Department of Public Works, May 2002. Model Standard Urban Storm Water Mitigation Plan (SUSMP) for San Diego County, Po1t of San Diego, and Cities in Sau Diego County, February 14, 2002. 2 of3 California Stormwater BMP Handbook New Development and Redeve!oPment www.cabmphandbooks.com January 2003 I I I I· 1. I I I I I I I I I I I I I I Outdoor Material· Storage Areas SD-34 Model Water Quality Management Plan (WQ:MP) for County of Orange, Orange County Flood Control District, and the Incol'porated Cities of Orange·Couuty, Draft Febmary 2003. Ventura Com1tywide Technical Guidance Manual for Stormwater Quality Control Measures, July2002. Jan1,1ary 2003 California Stormwater BMP Handbook New Development and Redevelopment www_.cabmphandbooks.com 3 of 3 I I I I I I -1. I I I ·1 I I I I I ·1 I I CITY or CAR.l=SBAD INSTRUCTIONS: STORM WATER STANDARDS QUESTIONNAIRE E-34 !J.fill£Lcu~me·nt SJ;·r.vJ.£.e s Land Development Engineering 1635 Faraday Avenue 760-602-2750 www.carlsbadca.gov To address post-development pollutants that may be generated from development projects, the City requires that new development and significant redevelopment priority projects incorporate Permanent Storm Water Best Management Practices (BMP's) into the project design per the City's Standard Urban Stormwater Management Plan (SUSMP). Initially this questionnaire must be completed by the applicant in advance of submitting for a development application (subdivision, discretionary permits and/or construction permits). The results of the questionnaire determine the level of storm water standards that must be applied to a proposed development or redevelopment project. Depending on the outcome, your project will either be subject to 'Standard Stormwater Requirements' or be subject additional criteria called 'Priority Development Project Requirements'. Many aspects of project site design are dependent upon the storm water standards applied to a project. Applicant responses to the questionnaire represent an initial assessment of the proposed project conditions and impacts. City staff has responsibility for making the final assessment after submission of the development application. If staff determines that the questionnaire was incorrectly filled out and is subject to more stringent storm water standards than initially assessed by the ijpplica11t, this will result in the return of the development application as incomplete. In this case, please make the changes to the questionnaire and resubmit to the City. If applicants are unsure about the meaning of a question or need help in determining· how to respond to one or more of the questions, they are advised to seek as$istance from Land Development Engineering staff. A separate completed and signetj questionnaire must be submitted for each new development application submission. Only one completed and signed questionnaire is required when multiple development applications for the same project are submitted' concurrently. In ~ddition to this questionnaire,. applicants for construction permits must also complete, sign and submit a Project Threat Assessment Form to address construction aspects of the project. Please answer the questions below, follow the instructions and sign the form at the end. I 1. Is your project a significant redevelopment? DEFINITION: Significant redevelopment is defined as the creation, addition or replacement of at least 5,000 square feet of ' impe,:vious surface on an already existing developed site. · Significant redevelopment includes, but i~ not limited to: the expansion of a building footprint; addition to or replacement of a structure; structural development including an increase in gross floor area and/or exterior construction remodeling; replacement of an impervious surface that is not part of a routine maintenance activity; and land disturbing activitfes related with structural or impervious surface& Replacement of impervious surfaces includes any activity that is not part of a routine maintenance activity where impervious material(s) are removed, exposing underlying soil during construction. If your project IS considered sigrifflcant redevelopment, then piease skip Section 1 and proceed with Section 2. If your project JS NOT consipered signific~nt redevelopment, then plea~e proceed to Section 1. E-34 Page 1 of3 REV 4/30/10 I I I I I I I I I I I I I I I I I STORM ·WATER STANDARDS QUESTIO'NNAIRE E-34 t:l§_Jtglopment Service.!_ Land Development Engineering 1635 Faraday Avenue 760-602-2750 www.carlsbadca.gov !SECTION 1 NEW DEVELOPMENT PRIORl,:Y PROJECT TYPE ' Does you project meet one or mo.re of the following criteria: YES NO 1. Housina §.Ubdivlslons of 10 or more dwelling units. Examples: single family homes, multi-family homes, i/ condominium and aoartlnents 2. Commercial-greater than· 1-acre. Any development other than ·heavy industry· or residential. Examples: hospitals; laboratories·and other medical facilities; educational institutions; recreational facilities; ml!nicipal facilities; commercial / nurseries; multi0apartment buildings; car wash facilities; mini-malls and other business complexes; shopping malls; hotels; office-buildings; public warehouses; automotive dealerships; airfields; and other light industrial facilities. 3. Heavy Industrial I Industry-greater than 1 acre. Examples: manufacturing plants, f90(( processing plants, metal ,.,i'/ working facilities; printing plants, al'.id·fleet storage areas (bus, truck, etc.). 4. Automotive repair shop. A facility categorized in any one of Standard lridustrial Classification (SIC) codes 5013, ,/ 5014, 5541, 7532-7fi34, and 7536-7539 5. Restaurants. Any facliity that seils prepared foods and drinks for consumption, including stationary lunch counters and refreshment stands selling prepared foods and drinks for immediate consumption (SIC code 5812), where the ./' land area ·tor development is greater than 5,000 square feet. Restaurants where.land development is less than 5,000 square feet shall meet all 'SUSMP requirements except for structural treatment BMP and numeric sizing criteria ,. reauirements and hydromodification reauirements. 6. Hillside development. Any development that creates 5,000 square feet of impervious surface and is located in an area with kriown erosive soil conditions, where the development will grade on any natural slope that is twenty-five / ..., . . percent (25%} or greater. . . . 7. Environmentaily Sensitive Area (ESAJ 1• Alf development located within or directly adjacent2 to or discharging directly3 to an ESA (where discharges from the development or redeveldpment will enter receiving waters within the ., i,/ .• ESA), which either creates 2,500 square feet of impervious surface.on a proposed project site or increases the area of imperviousness of a orooosed oroiect site to 10% or more of its naturally occurrino condition. 8. Parking lot. Area of 5;000 square feet or more, or with 15 or more parking spaces, and potentially exposed to urban ,.,..,.... r,unoff · · · · 9. Streets, ·roads, highways, and· freeways. Any paved surface that is 5,000 square feet or greater used for the v""' transportafion of autc;imobiles, trucks, motorcycles, and other vehicles .. 10. Retail Gasol~ne QuUets. Serving.more than 100 vehicles per day and greaterthan.5,000 square feet V""" 11. Coastal Development Zone. Any project located within 200 feet of the Pacific Ocean and (1) creates more than V 2500 square feet of impermeable surface or (2) increas~s impermeable surface on property by more than 10%. 1i: More· than 1-acre of disturbance. Project results in the disturbance of more than 1-acre or more of land and is .considered a-Pollutant-generating Development Project4• _ . -. . V 1 Environmentally SenslUve Areas Include but are not limited to all Clean Water Act Section 303(d) Impaired water bodies; areas designated as Areas of Special Biological Significance by the State Water Resources Centro! Board (Water Quality Control Plan for the San Diego Basin (1994) and amendments); water bodies designated with the RARE beneficial use by the State Water Resources Control Board (Water Quality Control Plan for the San Diego Basin (1994) and amendments); areas designated as preserves or their equivalent under the Mulll Spec)es Conservatio.n Program Y(lthln .the Cities and County of San Diego; and any other equivalent environmentally sensitive areas which have been Identified by the Copermlttees. 2 "Directly adjacent• means situated within 200 feet of the Environmentally Sensitive Area. 3 "Discharging directly to• means outflow from a drainage conveyance system that Is composed entirely of fiows from the subject development or redevelopment site, and not commingled with flow froni adjacent lands. 4 Pollutant-generating Development Projects are those projects that generate pollutants at levels· greater than background levels. In general, these Include all projects that.contribute to an eicceedance to an lmpaired·water·body or which create new Impervious surfa<;es greater than 5000 square 'feet and/or Introduce new landscaping areas that require routine use of.fertillzers and pesticides. In most cases linear pathway.projects that are for Infrequent vehlcle use, such as emergency or maintenance access, or for pedestrian or bicycle use, are not considered Pollutant-generating Development Projects If they are built with pervlous surfaces or If they sheet flow to surround! ervious surfaces, · Section 1 Results: .If you answered YES to ANY of the questions above your project is subject to Priority Development Project requirements. Please check the "meets PRIORITY DEVELOPMENT PROJECT requirements• box in Section 3. A Storm Water Management Plan, prepared in accordance with City Storm Water Standards, must be submitted at time of application. If you ,~nswered NO to ALL of the questions above, then your project is subject to Standard Stonnwater Requirements. Please check the "does not meet PDP requirements"·box in Section 3. · E-34 Page 2 of3 REV 4/30/10 I I· I ·I I I I I I I I I I I I I I I ( llY Of- l""""'A· 1~ I S"" BAD \_,_"··Rt .. ·:> ,· _, STORM WATER STANDARDS QUESTIONNAIRE E-34 Develooment Services Land Development Engineering 1635 Faraday Avenue 760-602-2750 www.carlsbadca.gov .. . SECTION2 SIGNIFICANT REDEVELOPMENT Complete the q·uestions below reaardlng your redevelopment protect: YES NO 1. Project results in the disturbance-of rriore than 1-acre or more of land and is considered a Pollutant-generating Development Project (see definition in Section 1). . If you answered NO, please proceed to question 2. . 'If you answered YES, then you ARE a significant redevelopment and you ARE subject to PRIORITY DEVELOPMENT PROJECT requirements. Please check the "meets PRIORITY DEVELOPMENT PROJECT requirements" box in Section 3 below. 2. Is }he project redeveloping an existing priority project type? (Priority projects are defined in Section 1) If you answered YES, please proceed to question 3. If you answered NO, then you ARE NOT a.significant redevelopment and your project is subject to STANDARD STORMWATER REQUIREMENTS. Please check the "does not meet PDP requirements" box in Section 3 below. 3. Is the project solely limited to just one of the following: a. Trenching and resurfacing associated with utility work? b. Resurfacing and-reconfiguring existing surface parking lots? c. New sidewalk construction, pedestrian ramps, or bike lane on public and/or private existing roads? d. Replacement of 1:1xisting damaged pavement? If you answered NO to ALL of the questions, then proceei:I to question·4. If you answered YES to ANY of the questions then you ARE NOT a significant redevelopment and your project is subject to Standard Stormwater Requirements. Please check the "does not meet PDP. requirements" box in Section 3 below. 4. Will your redevelopment project create, replace, or add at least 5,000 square feet of-impervious surfaces on an existing development or, be located within 200 feet of the P<!cific Ocean and (1 )create more than 2500 square feet of imoermeable surface or (2) increases impermeable surface on the-property:by more than 10%? If you answered YES, you ARE a significant redevelopment, and you ARE subject to PRIORITY DEVELOPMENT PROJECT requirements. Please check the "meets PRIORITY DEVELOPMENT PROJECT requirements" box in Section 3 below. If you answered NO, then you ARE NOT a significant redevelopment and your·project is subject to STANDARD STORMWATER REQUIREMENTS. Plea_se check the "does not meet PDP requirememts" box in Section 3 below. I SECTION.3 Questionnaire Results: My project meets PRIORITY DEVELOPMENT PROJECT (PDP) requirements and must comply with additional stormwater criteria per the SUSMP and must prepare a Storm Water Management Plan for submittal at time of application. My project does not meet PDP requirements and must only comply with STANDARD STORMWATER REQUIREMENTS per the SUSMP. Applicant Information and Signature Box This Box far CHy Use Only Address: Assessor's Parcel Number(s): City Concurrence: I YES I NO I I Applicant Name: · Applicant Title: By: Dale; Applicant Signature: Date: Project ID: E-34 Pag1:13 of 3 REV 4/30/10