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HomeMy WebLinkAbout2019-08-28 Supplementals - PC-HPC ETIWANDA HEIGHTS NEIGHBORHOOD & CONSERVATION PLAN Etiwanda Heights Neighborhood & Conservation Plan and Final EIR Planning Commission Hearing August 28, 2019 RANCHO cucuaoNcn 1 � 1 � • 1 , + 1 !/ 4 J l /�..� ------- !—r----r_Yw_w��r---��4� ��r �--__-----ism =as_ _ / j � � •" � `'�. ;�.5- � � f � .� - Co apt— Sur . }.. ► � Wilson Avenue �Wilorr Avenue ► Property PLV- ��.:,r i�~`� , !.�_�_ r ■� _� Q]. 1 -i� +an� tiT-' — y k£ `i �ry �c '. `• .. pn Ave "�i r '' zv :'. • ,� 17 ►` F - 1�1t � EL o �i.�i�►��.. 'i �.;• -�,.i wa � "'��.."� 1 y� ` rt'SYk -�T�-.' `}S" C\liJ�• i�""y��i.��L�t Y .7 • + f'-1 i .Y'�rFi•R- �{ l - lam" �iil 1w"�K -1 UL�r�Y�� 50 5 •'��--}y �� l .♦ i 1 Whyis the Cityconductin thisprocess? 9 The County sought to initiate development of this land in 2008 • County-owned land is no longer needed for flood control purposes • The County intends to liquidate this surplus land and has development rights Y • Land is in County and subject to County's zoning • County issued a Developer RFP in 2008 with the intention of changing the zoning to enable the proposed development We want to have a say in how the land is developed R We do not want to suffer the impacts of development - i without ability to mitigate : � � ;; __ -. • Want any development to meet the City's high standards RANCHO CUCAMO CA Etiwanda North Specific Plan ( 1992 #iRE HR RC A AF VLE�_ —�' L i VL L VL . x IL _ UC: Utility Corridor L:Low Res=2-4 DUA L OS:Open Space VL:Very Low Res.=<2 DUA FC: Flood Control VLE:Very Low Estate Res.=1 DUA f FZ: Fault zone HR: Hillside Res=<2 DU/bld. ac RC: Resource Conservation HRE: Hillside Estate Res=<1 DU/bld. ac r` i IN: Institutional NC: Neighborhood Commercial FRIM RANCHO CUCAMONGA Rancho Cucamonga General Plan What does it say about this area? •AN 04RNXRPIHD NAT%GMAL TjAftT ■ Land use designations include L ` r 5 conservation, open space, hillside �_ . may-il�Y � ,��;O residential, and flood control utilityrye, NA corridor ■ Includes several major view corridors ,{ .I'ry"'�^ a. ana 4 re•' _ • Primary vehicle and non--motorized connections from Wilson Ave., Banyan U.S AAII • �� . .F .4/M I i+144 Ave., Milliken Ave., and Day Creek Blvd. Id , 7 i ■ Entire area within Equestrian/Rural Area Overlay with regional and community trails •I,1» General Plan also gives direction on creating high quality neighborhoods and districts L. f = RANCHO How did we get here? • 2015 - 2017: North Eastern Sphere Annexation Proposal • Fall 2017: Four public workshops held on the draft land use concept; learned that community wanted to take a more active role in defining the planning concepts for the Area. • January - April 2018: Plan shelved; re-engagement through workshops, small group meetings, online surveys to better understand the community's vision. F IL.O /- I Etiwanda Heights Neighborhood and Conservation Plan R cucAmoNGA Fiscally Financially neutral (or feasible positive) Community- (And finish based Wilson Ave. New connection) Proposal Outcomes of Spring 201E CommunityInput The clearest outcomes of this process were: 1. The community favored taking local control of the Plan Area. 2. There was very little support for new taxes to pay for open space conservation. 3. Some neighborhood development in the lower Plan Area would be needed to gain focal control and would be an acceptable means. On May 16th , the City Council directed Stuff to continue working with the community on a plan for neighborhoods and conservation in the northeastern area of the City. RANCHO CUCAMDNGA r In the Summer of 2018, the City hosteda community-based planning process to learn more about priorities and how to best balance them . Pia • Pop-up outreach Small group meetings ��" '°' °`�"'�' ..rwn.�N.g,cer.eea,e Cerr.av V • Online survey • Promoted by email, Instagram, Twitter, Facebook, and Nextdoor. • Website with videos and information to � . . � explain the planning process. RANCHO CUCAMONGA Online survey results ` • # I Priority: Plgoo Animal Habitat • • #2 Priority: Minimize Wildfire Risk #3 Priority: Range of Housing #4 Priority: Semi-Rural Character #5 Priority: Minimize Traffic Impacts #6 Priority: Pathways for walking/biking/horses #7 Priority: Gathering Spaces and Parks #8 Priority: Beautiful, well maintainII ed neighborhoods Etiwanda Heights Neighborhood h RANCHO The online survey also helped to answer a key question : What types of uses belong in the annexation area to : 1 . achieve local control, RANCHO 2 . avoid increasing our tax burden, and 3 . balance our eight priorities? Open House f � y On September 21, 2018, the City hosted an open house to share concepts and gather input on - L. the new initial concept. r k • 200 attended people f • Five stations with subject matter experts Etiwanda Heights Neighborhood and Conservation Plan IN CUCAMONGA RANCHO Resulted In : Public Review Draft Specific Plan and Draft Environmental Impact Report (EIR) • Winter 2018 — Spring 2019: Draft Plan and EIR Prepared • April 2019 — Draft Plan and DER available for public comment • April and May 2019 — Initial Planning Commission review of Draft Plan and EIR • Summer 2019 — Revisions to Public Review Draft Specific Plan and Responses to DER Comments Prepared E=tiwanda Heights Neighborhood and Conservation Plan RANCHO ACMC► Substantive Changes to the Public Review Draft Plan Changes were made to the Public Review Draft Specific Plan in response to input from: • Comments received from agencies, environmental organizations, and the general public during Draft EIR public review period • Planning Commission • Trails Advisory Committee These changes resulted in a new and better Plan, with no new environmental impacts. Etiwanda Heights Neighborhood and Conservation Plan RANCHO ONGA Reduction of Neighborhood Area Footprint 828 acres to 790 acres Biological resource benefits: Increase in size of Etiwanda Heights Preserve by 38 acres; 1 �{ decrease in impacts to vegetation ' and habitat. �WN"M k" �. . Improved viewshed benefits: 41 Widened Deer Creek Greenway � along the west edge by to provide an additional buffer. Equestrian benefits: „{ r Addition of equestrian standards -- ��• al �I,IRTF 1/T+ and amenities to support the Equestrian Overlay Etmanda Heights Neighborhood and Conservation Plan W. CCUC MONGA other Substantive Changes • Expanded and Refined Trail Network, including Equestrian Park • Expanded Rural Development Standards • Expanded and Clarified Transfer of Development Rights (TDR) Program • Addition of the Healthy Development Checklist • Broadened Use List in Shops & Restaurants Zone These changes have been reviewed from a CEQA perspective, and do not result in any changes in the conclusions reached in the Draft EIR, although certain impacts are reduced as a result of the changes. Etiwanda Heights Neighborhood and Conservation Plan *RANCHOCAMONGACU Overview of the Etiwanda Heights Neighborhood & Conservation Plan i.._.! ! j ! Rwal/Conservadon Area Vision: large quantities of conserved rural and natural open space in the northern i portion of the Plan Area, underwritten by and in balance with high quality Neighborhood Area ,� � i -� neighborhood development in the r! ; southerly areas already surround by ` ' existing neighborhoods. / Frdkl-rll I! cZr � � t'f it 1 L. Etiwanda Heights Neighborhood and Conservation Plan RANCHO Guiding Principles -�, 4 Local Control Open Space Conservation ,� IC,C„"1 2 C"n Space tansamatlan Active Healthy Living A �-4� Fiscal Responsibility .. :-: Public Safety ACUVe Healthy Hscal Unique Sense of Place 3 uvinz 4 Rm"nsibillty r } 5 Public Safety Unique Sense of Place Etiwanda Heights Neighborhood and Conservation Plan RAM A Plan For Conservation and Neighborhoods 1 1 )txth wwanda Fre`se�re -F Lj h r t y I �' ��ulyr �1� .nlp�Rw Y;6YA.c x .S_e.. #own dh Ebiwanda Heights Neighborhood and Conservation Plan RANCHO CUCAMONGA Conservation Strategy ■ Conserve and restore habitat and ecosystem functions ■ Mitigation : Provide developer incentives to underwrite conservation as mitigation for the neighborhood TDR: Provide incentives for property owners in the Rural/Conservation Area to transfer development rights to the neighborhood, expanding open space New rural development standards to build on the City`s hillside regulations and limit the footprint of new development Active management to ensure permanent, adequately funded management of conservation lands Managed recreation and education access to the Rural/Conservation Area Etiwanda Heights Neighborhood and Conservation Plan LW RANCHO cucAmowA Rural/Conservation Area Ownership Pattern _ t LL I i I� Conserved and Managed / r` —"-x Conserved not Managed Public Land ji i � i Public Land/Likely Conservation f Private Land/Undeveloped Private Land/Developed Neighborhood Area RANCHO CUCAMONGA Rural/Conservation Area : Recommended Preserves co 13 �I 10 . RuraUConservation Area(RCA) F Neighborhood Area (NA) - Conserved and Managed I Conserved not Managed X Recornmended Preserves A i=ciwanda Heights Preserve B Deer Canyon Preserve i_j C Clark Preserve Etiwanda Heights Neighborhood and Conservation Plan RA"oN O RegulatingPlan Rural/Conservation Area ` I Hillside (R-H) f �„ r3 C� Open Space (R-OS) � ® Conservation (R-C) ® Open Space/Proposed Preserve (R-OS) Flood ControllUtility Corridor (R-FCIUC) L— -� — -- - Neighborhood Area 3 9 � Neighborhood Estates sNE) 0 Neighborhood General t 1NG-'1 %l 7 it 6 I, g .f l� 0 Neighborhood General 2 (NG-2k 0 Shops&Restaurants ,SR; r I I i Ca mino Overlay IC-O) 4 8 a Shopfront Required I ' School SiteRANCH I.-- Etiwanda Heights Neighborhood and Conservation Man CUCAMCR44GA Transfer of Development Rights Rural/Conservation Area 1 Hillside (R-Hl + f Open Space IR-OS) Conservation (R-C) ® Open Space/Proposed Preserve (R-OS) Flood Control/Utility Corridor (R-FCIUC) i Neighborhood Area 9 --4. r Neighborhood Estates INE) 0 Neighborhood General 1 (NG-1 i fi 1�,7i Neighborhood General 2 (NG-2) Q Shops&Restaurants (SRI �' 2 �� 'A 0 Camino Overlay{C-O} i © Shopfront Required School Site RANCHO CUCAMONGA Rural/Conservation Area : 5.9.2 Rural/Conservation Area Building Standards Development StandardsT For minimizing impacts in the Rural/Conservation Area OF 40 _- ,_„ � �orrrlao«. { ♦ � -- - Iwo, w wry,.;4.,'ve'.11r �y a\/• .� �1., ��� � . _ �rr�+a per � ■ w w.�f yr.r.wwrt.a! .vA 'S W—L,7 tl 1>wr is ry —_ per .■ ` Q -,+wt +r- I =.rtOu7tlti a0r�c•wotrrv'aa:l OFT---- � +7r;rs..rexr�•n z1 I u..l.:.....ly-- ---I- N -� ...ram • .uq�u� :i tr.rRy K*&WSL_ ,•r,6.L i���• r ## 104.15 19 ETIWANQA HEIGHTS NEIGHBORHOOD;CONSERVATION PLAN Neighborhood Strategy • Create an expansive open space network to provide access to and views of the conserved foothill open spaces as well as formal parks and trails • Healthy, active living through walkable neighborhoods, trails, and streets • Extensive roadway network to reduce bottlenecks and traffic and provide great public safety access • A range of housing types from large equestrian estates to smaller starter homes • Strong design standards and guidance, including minimizing mass grading to deliver on desires for "tree-lined streets" and `semi-rural character;' anc� to maximize stormwater retention • Small scale neighborhood serving commercial to expand neighborhood services and amenities RANCHO cucruoNw Neighborhood Area .--- -- ----- w Haven — --- Concept View \j Estates OMilliken Heights Neighborhoods:Very large homes on large semi-rural lots with expansive views of the I mountains and valleys and easy access to the City's Deer * extensive trail network and equestrian park. Creek ( I + I I © Central Neighborhoods:Large,medium and smaller © ! homes within a 5-minute walk of the Camino de los Alturas parks and trails and a 5-minute walk of the � town square. © North Neighborhood:Large,medium and smaller Town Square homes within a 5-10 minute walk of the town square I _ / { and the Camino de las Alturas I ,t f -— • — — f (2-acre park) QSouth Neighborhoods:Large,medium and smaller homes within a 3-minute walk of the Camino de las Alturas parks and trails,and a short walk or bike i3 z Camino de las from the town square. Alturas © along the west edge of Edwando Heights,connected j { L West Neighborhoods:Large and medium homes by a linear park. ? 1 OBanyan Community Playflelds&Neighborhood: I I Communitypark,sports fields,and adjacent housingI I Caryn /f: fronting Rochester&Banyan Avenues. `i l J Foothill Freeway Qp RANCHO L CUCAMONGA Neighborhood Area : f� Regulating Zones k---Ab I V 0 Neighborhood Estates (NE) j Neighborhood General 1 (NG-1) � Neighborhood General 2 (NG-2) WSMA" AiW Shops& Restaurants (SR) 1 Camino Overlay(C-O) �g ] Shopfront Required 3 0 School Site s lrctle� ! Nx 1 Foothill Freeway RANCHO CUCAMONGA Neighborhood Area : Development & Design Standards • Block standards for the layout of new blocks and lots • Building standards for single-family building types and shops and restaurants • Private frontage standards to help define the character of each building, and collectively define the character of the neighborhood • Signage standards for signs on all private property, and for neighborhood gateway signs • Architectural and landscape guidelines that reflect the heritage and character of Etiwanda and Alta Loma }. .. fill MINX b-HZ R_-_3 0 Mil Mu �! ••ywy Mwi - - _ �oowoaa r�--- - -_.�_�_____-- _-___-- > 1 Open Space Framework - 1 1. Etiwa nda Heights Preserve 2. Trailheads !�- ---NJ 3. Camino de las Alturas GreenwayTF 4. Milliken Heights Greenwa I J 5. Milliken/Wilson Roundabout I,. W&MA � h 6. Neighborhood Parks and Greens I j i _- 7. Banyan Greenwa s 8. Banyan Community Playfields �- 9. Town Square �r 10. Equestrian Park 11. Paseos I iv I Master Plan of Trails 1 `tr�nrthEttwandaPres ie ` \� I 1 Wp(AN" 12 � f 11) a. 1 { 18 ell RANCHO CUCAMON , Range of Trail Types Rural/Conservation Area Trails } LZ -- RANCHO L, " 5 I 1� ry A Range of Trail Types Neighborhood Area Trails Q .40 Multipurpose Trail -- Landscape Buffer AdvPftVMaltAhkrff4A 0UM0rfrail%akwD"randAayCreek[hannrh nermak"rFmrhoillnfgrarrdhrmrheMFehwr+oadArrosrrrrrneMf* - Nature r ..... ... .. . ... ........__, , Q � r - RCA Protected Natures FencelBarrler $. # � Fru Other ' ..�..�� :...�..� ' Minimum required width New Mul(*Mase frail in the Cammd dr krt Murat Nrw Mulbpulpdu Trwl mlr8rnled into lhr tkaM rhWd Area slur!nefltnrk RANCHO CUCAMONGA Street NetworkMultimodal � � 1 • Driving Banyan Street Retrofit f ; Neighborhood Avenue 1 f • Walking Neighborhood Avenue 2 rrn� Entry Avenue • Hiking ..�R Milliken Avenue Wilson Main Street _ • Biking Neighborhood Street -" Neighborhood Street-Equestrian i - i • Horse-back Riding (SmDetaII5.7.I JF, ---- Rear Line """'` Edge Drive . .+. Paseo T I Edge Lane � I ~=1 FIG.5.',BA=(v;IGF30Rf1[7p0 C,',iE�J;l�1 Street Design i'IG,S,?-d�A'F�P_LIK=SJAL'f'aU53S]71Y �..� - I' e l,ra,its RANCHO CUCAMONGA �+v� t c'� c •.i�?•~x c ?'Cad. � c EjF�� ��, ...�. ,- `�;+ , ■ Environmental Review • Draft EIR 45-day public review period: April 29 June 14, 2019 • Notice of Completion (NOC) of the Draft EIR submitted to Governor's Office of Planning and Research State Clearinghouse for distribution to State agencies for review • Notice of Availability (NOA) of the Draft EIR for review mailed to others who requested this notice and filed with the San Bernardino County Clerk • Following completion of Draft EIR review period City prepared Final EIR as required by Section 15089 of the State CEQA Guidelines Etiwanda Heights Neighborhood and Conservation Plan RANCHO cUCAMONGA Environmental Review • Final EIR contents: ✓ Incorporates Draft EIR by reference ✓ Includes comments on Draft EIR, and responses to these comments: o b Comment Letters from public agencies o 4 Comment Letters from 3 other organizations o 24 Comment Letters from individual community members o Topical responses provided on Wildfire Hazard & Safety Planning, the Transfer of Development Rights Program, and Flood Conditions ✓ Corrections and Additions section containing revisions to Draft EIR o Minor revisions and updates to Draft EIR text o No changes in conclusions on significance of EHNCP impacts Etiwanda Heights Neighborhood and Conservation Plan RANCHO CUCAMONGA Environmental Review • Mitigation Monitoring and Reporting Program (MMRP) per Section 15097 of the CEQA Guidelines identifying City departments and other agencies responsible for monitoring implementation of mitigation measures, • Technical Appendices, including: Appendix A: Revised Cultural Resources Report - Updated based on Tribal consultation Appendix B: Approved Water Supply Assessment - Approved by CVWD Board Appendix F: Analysis of Revised Specific Plan - Revisions to Specific Plan reduce impacts Etiwanda heights Neighborhood and Conservation Plan RANcQHO Outcomes of this Specific Plan Extensive conservation of the front country ■ A new, unique, healthy, outdoor lifestyle available to Rancho residents ■ Every home within comfortable 5-minute walk of park and/or trail a Every sub-area has unique identity and mix of housing types o Significant percentage of car trips and discretionary spending captured �, y1_ i - a RANCHO CUCAMO CA Staff Recommendation • Planning Commission to consider the following resolutions with recommendations to the City Council to adopt: 1) Specific Plan with the associated recent changes, 2) Associated amendments to the General Plan, Development Code, Zoning Map, and ENSP, 3) FETR, including Appendix F which analyzes the latest project revisions, and 4) Resolution for annexation. Edwanda Heights Neighborhood and Conservation Plan RANCHO Questions and Discussion RANCFia LETTER OF TRANSMITTAL CUCAWNGA RATE: August 27,2019 TO: Distribution List—Etiwanda Heights Neighborhood and Conservation Plan Final EIR FROM: City of Rancho Cucamonga Planning Department 10500 Civic Center Drive Rancho Cucamonga,California 91730 VIA: Overnight delivery ❑ Maii ® Email ❑ Courier ❑ Fax ❑ Other FOR: ❑ Approval/Action ® Information ❑ Use as requested ❑ Comment ❑ Distribution ❑ Other COMMENTS: Please see the attached Topical 2, Transfer Development Rights Program, and Topical 3, Flood Conditions, which were intended to be included in Section 2.0, Response to Comments of the Final EIR.They were mistakenly omitted during the process of making a minor revision and converting to a PDF file. 2.0 Responses to Comments TOPICAL RESPONSE 2 Transfer Development Rights Program As proposed, the EHNCP would allow for a maximum of 3,000 single family residential dwellings. Up to 100 dwelling units would be allowed in the Rural Conservation Area (RCA) and 2,900 residential units would be allowed in the Neighborhood Area (NA). Taking into account existing conditions in the RCA and the City's existing Hillside Development Regulations and Development Code Standards, which would apply to the RCA after annexation, the development potential in the RCA is estimated to be approximately 100 dwelling units.The development feasibility of properties within the RCA is constrained by lack of legal access and infrastructure, site conditions, and development economics. Comments referring to the potential for the Project to result in the development of 3,500 to 4,000 dwelling units refer to the alternatives defined and evaluated in Section 5—Alternatives, in the Draft EIR. Alternative 1 is based on projections of the maximum amount of development allowed by current San Bernardino County General Plan designations (Alternative 1—No Project Alternative). Section 4.10 Land Use and Planning of the Draft EIR discusses the theoretical maximum density a maximum of 1,650 dwelling units that could be developed under direct application of the existing City General Plan Designations for the property in the City's Sphere of Influence. As presented in Section 7.4 of the proposed EHNCP,a Transfer of Development Rights Program would be established to provide an economic incentive for private land-owners in the RCA to voluntary participate in the transfer of their development rights to developers of projects in the NA instead of developing their RCA property through the City's development permit process in accordance with the development and other standards included in the EHNCP and the City's Hillside Development Regulations.The 100 dwelling units the EHNCP would allow in the RCA would be available for transfer into the NA pursuant to the voluntary TDR program.The value of the development rights for any property willing to participate in the TDR program would be determined based upon a fair market value appraisal process and any TDR would be between willing buyers and sellers. Developers of any phase in the NA will be required to show that they have met their habitat mitigation requirements prior to the issuance of any grading permit for their phase of the NA. Developers may choose to participate in the TDR program as a means to restrict development on particularly RCA property, or use other approaches to acquire or restrict properties for habitat conservation purposes in order to meet their habitat mitigation requirements. Meridian Consultants 2J}9 Edwando Heights Neoghborhood and Caaservarion Plan 072-004-18 August 2019 2.0 Responses to Comments TOPICAL RESPONSE 3 FLOOD CONDITIONS The EHNCP area includes 1,144 acres of vacant property owned by the San Bernardino County Flood Control District (SBCFCD) no longer needed to accommodate storm runoff from Day and Deer Creeks because flood protection projects constructed during the past four decades now divert flood waters away from this property. Excess water and debris flowing down the mountains into Deer Creek and Day Creek once flowed onto the vacant 1,144 acres. Those storm flows are now accommodated by the Deer Creek and Day Creek debris basins and the Day Creek Spreading Grounds. The Deer Creek and Day Creek debris dams are designed to catch boulders,tree limbs and other debris and keep them from flowing downstream during storms.The debris dam is designed to capture boulders as part of the debris flow.The debris dam design includes a debris pool that slows the flow to allow the debris to settle out and clear water to be released through the outlet structure or spillway.The dams also control the flow of storm water flowing into the downstream channels.These dams were designed and sized accordingly to capture the debris produced from a major storm event after a fire.The effectiveness of these dams was demonstrated in 2003 when they protected the community during the storms that followed the Grand Prix Fire. The Deer Creek Debris Dam was built in the 1980s by the USACCIE to handle a 100-year storm,defined for purposes of the design of this facility as major storm event after a wildfire expected to occur every 100 years.The design parameters used were based on historical rainfall data and the topography of the area and account for the most severe flood-producing storm anticipated.The 100-year storm is the SBCFCD's standard for projects constructed within its jurisdiction and is estimated in accordance with the San Bernardino County Hydrology Manual. Building flood control facilities for 100-year storm events is consistent with the standard practice of other flood control agencies within the United States and with the Federal Emergency Management Agency (FEMA) criteria. The SBCFCD uses a more conservative methodology for calculating storm flows than FEMA, which provides an additional level of safety for residents of San Bernardino County. Additionally, an interception levee with a series of inline basins (the Day Creek Spreading Grounds) was completed in 1990 downstream of the Day Creek Debris Dam. This levee diverts local surface flows not captured by the Day Creek and Deer Creek dams to the Day Creek Channel.The integrity of the levee was certified by FEMA on January 30, 2014.As a result of the construction of the Deer Creek and Day Creek systems noted above, the 1,144 acres of surplus property owned by the SBCFCD is no longer needed for flood control purposes. Meridian Consultants 2-D-10 Etiwanda Heoghrs Neighborhood and Conservation Plan 072.004-19 August 20I9 2.0 Responses to Comments Because this surplus land is located in Flood Control District Zone 1—which includes Rancho Cucamonga and other county communities roughly west of Sierra Avenue and south of the San Gabriel Mountains— the proceeds from the sale of the land would provide a significant amount of revenue for new flood control projects in the Rancho Cucamonga area in Flood Control District Zone 1.Projects identified in the SBCFCD's Ten-Year Plan that could benefit from those funds include the Hawker Crawford Channel and Etiwanda Channel Invert Repair projects, which are located within or adjacent to Rancho Cucamonga. These would improve the condition of the existing flood control channel, increasing flood protection in the area. Following the 2003 Grand Prix fire and subsequent December 25 storm, the SBCFCD and the USACOE carried out several maintenance and improvement projects to better protect Rancho Cucamonga: • In January 2004,the USACOE removed 98 acre-feet(157,100 cubic yards)of sediment and debris from the Deer Creek Debris Dam to restore the capacity of the basin to 172 acre-feet (an acre-foot is an amount that would cover an acre of land to a depth of one foot). • In the fall of 2004,the SBCFCD increased the capacity of the Deer Creek Debris Dam by an additional 23 acre-feet (37,500 cubic yards) and flattened the slope from 6% to 1% to slow the flow of flood water and debris. • In February 2005,the SBCFCD increased the capacity of the Deer Creek Debris Dam by an additional 150 acre-feet(241,901 cubic yards). • From February to March of 2005,the SBCFCD increased the capacity of the Day Creek Debris Dam by 289 acre-feet(466,859 cubic yards). • In the fall of 2007, the SBCFCD undertook the Deer Creek Dam Inflow Channel Improvement Project to evenly distribute debris flows into separate areas of the basin.With the completion of the project (constructing an armored earthen berm and grade control structure at the inlet channel), a portion of the debris flows now goes to the west side of the basin,thus maximizing the basin's storage capacity. The SBCFCD performs annual inspections and mapping of its first-line-of-defense basins to monitor the integrity and capacity of these facilities.In 2011,the Deer Creek and Day Creek debris dams were mapped and analyzed for their existing debris storage capacity.The net-available storage capacity was determined to be 322 acre-ft for Deer Creek and 465 acre-ft for Day Creek, which exceeds the design capacity for the basins. The San Bernardino County Department of Public Works(DPW)has developed a Storm Operations Manual addressing the surveillance,operation,and repair of DPW facilities(including flood control),storm patrol, data collection and data evaluation activities during the storm season. The SBCFCD prepares all basins, dams, levees, and channels for winter operations which includes the removal of sediment, trash, and Mendian Consultants 10-11 Etiwanda Heights Neighborhood and Conservation Plan 072•004.18 August 2019 2.0 Responses to Comments debris to ensure the proper function of the facilities. Other planning and operational activities occur to ensure the SBCFCD is ready to respond to a storm event. The dams were proven to be highly effective in 2003 when they protected the community during the storms that followed the Grand Prix Fire. The facilities have not been subjected to any major debris producing storms since that time and the watershed has had more than 14 years to recover from the 2003 Grand Prix fire. Fallowing the October 2003 wildfires and the subsequent flood activities,the Flood Area Safety Task Force (FAST) was formed, which included the development of Standard Operating Guidelines (SOG) to address potential issues associated with flood, mud, and debris flows. FAST is comprised of federal, State, local partners and non-profit agencies to provide for the protection to property owners, residents, and property subject to the risk of erosion, mudflows and flooding that could occur in the County. FAST-SOG provides the guidelines for staff to respond to potential emergency situations, due to the unstable condition of the burned areas. Additionally, DPW developed its own Concept of Operations (DPW- CONOPS) for storm event that monitor winter storms (October 15th through April 15th) and summer monsoonal storms(June 1st through September 30th). As discussed on page 4.9-20 in Section 4.9: Hydrology and Water Quality of the Draft EIR, no portions of the NA are within a 100-year floodplain and on-site drainage improvements within the NA would provide for adequate drainage of the proposed new neighborhoods.The Plan would not permit the development of homes within defined 100-year floodplain and flood hazard areas. For these reasons, potential flood hazard impacts would be less than significant. Meridian Consultants 2,0612 Edwando Heights Neighborhood and Conservation Plan 072-004 18 August 2019