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HomeMy WebLinkAbout1.0 BOCC Staff Report 05.04.1999Pu\c Cxj Contains Supplements to Report BCC 5/4/99 PROJECT INFORMATION AND STAFF COMMENTS REQUEST: Preliminary Plan and Amendment to the Planned Unit Development review for the Rose Ranch application APPLICANT: Roaring Fork Investments, L. L. C. PLANNERS: Norris Dullea Company ENGINEERS: High Country Engineering, Inc. - civil and traffic EVO Consulting Services - civil Zancanella and Associates, Inc. - water GEOLOGIST: MTI GEO Hepworth-Pawlak Geotechnical, Inc. BIOLOGIST: Kirk H. Beattie ENVIRONMENTAL Environmental and Turf Services, Inc. SERVICES: CULTURAL Merill Ann Wilson RESOURCES: ATTORNEY: Delaney & Balcomb, P.C. LOCATION: A ranch located west of the Roaring Fork River, along the east and west side of County Road 109, approximately 2.5 miles south of the City of Glenwood Springs, and directly south of the West Bank subdivision. SITE DATA: WATER: Section 1 and 12, Township 7S, Range 89W. A 440 acre tract to be combined with the West Bank subdivision golf facilities for a total of 533.5 acres. To develop a 322 lot residential subdivision and an associated golf facility, with additional recreational and open space amenities. Historic consumptive use credits, surface diversions from the Roaring Fork River, junior rights for on-site ponds and surface diversions, senior irrigation rights with the Glenwood Ditch, senior irrigations rights in the Robertson Ditch, and West Divide Water Conservancy District Page 1 of 20 14, SEWER: Roaring Fork Water and Sanitation District ACCESS: County Road (CR) 109, to State Route (SR) 154, to State Highway (SH) 82 EXISTING ZONING: PUD (Planned Unit Development) prior Agricultural/Residential/Rural Density ADJACENT ZONING: PUD subdivision to the north A/R/RD and Open space to the south A/R/RD to the west A/R/RD and Commercial to the east I. RELATIONSHIP TO THE COMPREHENSIVE PLAN The Proposed Land Use Districts map for Study Area 1 shows the subject site as within both a High Density Residential (two or fewer acres per dwelling unit) district and Low Density (more than 10 aces per dwelling unit) district. The designation of high density is based upon the availability of central water and central sewer service to the subject site. The low density designations are located along the river corridor and west of County Road 109 and are based primarily upon wildlife and physicaUenvironmental constraints. II. PROJECT INFORMATION A. Site Description: The subject site contained an active ranch to the east of County Road 109 which is being phased out of active production, and steeply sloped and undeveloped terrain to the west of County Road 109 which is considered range land and wildlife forage area. The land along the Roaring Fork Valley to the east is gently sloping and contains both flood plains and wetland along the river corridor, while the land west of County Road 109 is steeply sloping above sixty (60%) percent. Vegetation on the site consists predominantly of sage with juniper trees. Four (4) habitat types are present on the subject property and include riparian transition, irrigated pastures, sagebrush -rabbit brush, and pinyon juniper. The site contains various buildings associated with the household and the ranching operations including three (3) historically significant structures which comprise a potato storage cellar and a relocated rail structure. An abandoned railroad grade traverses the property to the east. An historic irrigation ditch traverses the property in a north -south direction (see Figure 1). Page 2 of 20 B. Ad. acent Land Uses: West Bank Planned Unit Development and golf course is located to the north of the property and is connected to the subject site through a thirty (30') foot easement. Teller Springs Subdivision is located to the south. The Roaring Fork River forms the eastern boundary of the site, and the western boundary of the site is bordered by land zoned agricultural. C. Development Proposal: The applicant is proposing to amend a Planned Unit Development which will consist of lex units, 47 club homes, ten (10) 322 units, including 171 single family dwellings, 74 duplex rent restricted apartment, and twenty (20) price restricted lots on a 440 acre tract. The site will also contain a golf course which will link with the West Bank golf facilities to create an eighteen (18) hole golf course with associated facilities including a restaurant, a day care center, and a maintenance building. Additional recreational amenities are proposed including a fishing park, overlooks, trails, greenhouse, and garden plots.a Recreational facilities are proposed such as a swimming pool, tennis courts, playground, and picnic area (see Figure 2). III REVIEW AGENCY AND OTHER COMMENTS A. Review Agency Comments: 1. Colorado Geological Survey: the State of Colorado Geological Survey reports in a letter dated 4 December 1998 that the design changes conducted in conformance with the conditions of PUD approval, as well as the updated engineering and geotechnical reports, have resulted in an improved preliminary plan. The State Geologist notes that the risks of soil collapse, sink hole subsidence, and debris flow still remain, but should be lessened provided the mitigation measures are followed. The Survey recommends the following three (3) conditions: • recommendations of the geotechnical consultant must be complied with; • designs shown on the PUD construction documents must be followed; and site specific foundation investigations and drainage recommendations must be required (see Figure 3a). The most recent letter from the State Geologist dated 22 February 1999 in reference to the golf course cart path notes that the intermittent stream, which the ows boardwalk cart path will straddle,dist indicates that the proposed debriflflow and flash flooding. The State Geologist g mitigation designs and the electronic warning system as proposed, as well as the submitted geotechnical design for the boardwalk foundations, scour, and cut slope grades should be sufficient to manage the geomorphological concerns noted (see Page 3 of 20 Figure 3b). Division of Wildlife: the State of Colorado, Department of Natural Resources, Division of Wildlife (DOW) met with the applicant in the field to review mitigation measures imposed with the Board of County Commissioners' PUD conditional approval (see Figure 4). 3. Division of Water Resources: the State of Colorado Office of the State Engineer Division of Water Resources letter of 4 February 1999 states "The proposed water supply will cause material injury to decreed water rights and is inadequate." However, the applicant has obtained the required Amended Findings of Fact, Ruling of Referee, and Decree of Court from the District Court, Water Division No. 5, Colorado (see Figures 5a and 5b). 4. Mount Sopris Soil Conservation District: the Mount Sopris Soil Conservation District has not responded to this application. 5. Bureau of Land Management: the United States Department of the Interior Bureau of Land Management reports no concerns with this application. 6. Carbondale & Rural Fire Protection District: the Carbondale & Rural Fire Protection District has notified the County that they will be meeting with the Roaring Fork Water and Sanitation District to discuss future extensions of the water system to the existing developed areas along County Road 154 (see Figure 6). Roaring Fork School District RE -1: the Roaring Fork School District RE -1 is requesting cash in -lieu of land dedication based upon the current District Resolution (see Figure 7). 8. Roaring Fork Transit Agency: the Roaring Fork Transit Agencies (RFTA) reports that the proposed increase in density will result in a percent change of 10.3 which have been applied to the mitigation of transit impacts previously assessed for the sketch plan. The report recommends the following four (4) requirements: • provide for rolling stock capacity equivalent to $184,201 of a transit bus and a life span of twelve (12) years; • commit to an operating subsidy of$18,300; • finance a Park and Ride facility adjacent to SH 82 with an estimated cost of $222,254; and • support parking lot maintenance and snow removal at a cost of $10,478 per year (see Figure 8). Page 4 of 20 9. Roaring Fork Railroad Holding Authority: the Roaring Fork Railroad Holding Authority (RFRHA) has stated the following two (2) requirements: • the applicant must not encroach upon the railroad right-of-way with the proposed road improvements; and • the applicant shall conduct a survey of the right-of-way and place physical barriers along the property line which would serve to forbid any improvements from impacting the railroad property (see Figure 9). 10. Eagle County: Eagle County has not commented on this application (Figure 10 pending). 11. Pitkin County: Pitkin County notes that the PUD condition of approval which stipulated the provision of affordable housing units on-site must be adhered to. Pitkin County also supports the requirement of the applicant to pay its proportional share of operational, maintenance, rolling stock, and park and ride facility costs for public transit (see Figure 11). 12. Garfield County Road and Bridge: the Garfield County Road and Bridge Department has listed six (6) major deficiencies in the application as follows: • The site plans fail to show the existing culverts under County Road 109. The number of existing culverts is currently deficient resulting in the present settling problems with CR 109. Additional piping under CR 109 will be necessitated. • No details have been provided of the three (3) proposed cart underpasses. Guide rails have not been designed for the roadways above the underpasses. These proposed underpasses will function as drainage culverts within the County's maintained right-of-way. An agreement must be drafted to transferred maintenance responsibility to the subdivision/golf course. • The twelve (12") inch water main proposed to be placed within the right-of-way of CR 109 must be relocated further on-site to avoid additional settlement of the roadway. • Turn lanes must be provided on CR 109 for vehicles entering the Rose Ranch development due to the quantity of traffic projected to be generated by the subdivision and golf facilities. The proposed improvement to CR 109 near River Ranch Drive must be constructed to the same standards as the existing roadway with a minimum of four (4") inches of asphalt. A two-way stop must be designed for the junction of CR 109 with CR 154 (see Figure 12). Page 5 of 20 13. Garfield County Health and Human Services: Garfield County Health and Human Services recommends that home-based child care be a permitted use within higher density zone districts. 14. Garfield County Sheriffs Department: The Garfield County Sheriffs Department reports no concerns with this proposed preliminary plan. 15. Colorado Department of Transportation: the Colorado Department of Transportation - pending (see Figure 13 pending). B. Comments from Organizations: 1. Roaring Crystal Alliance: the Roaring Crystal Alliance has not commented on this preliminary plan submission. 2. Glenwood Springs River Commission: the Glenwood Springs River Commission has not commented on this preliminary plan submission. 3. Roaring Fork Valley Biological Inventory: the Roaring Fork Valley Biological Inventory has not commented on this preliminary plan submission. 4. Carbondale Affordable Housing Corporation: the Carbondale Affordable Housing Corporation has not commented on this preliminary plan submission. 5. Glenwood Springs Board of Realtors. Inc.: the Glenwood Springs Board of Realtors has not commented on this preliminary plan submission.. C. Letters from Concerned Citizens: See Figures 14 - 23 IV. MAJOR ISSUES AND CONCERNS A. Zoning District Amendments: The previously approved PUD called for 292 residential units on 440 acres for an average density of 0.54 units per acre. The plan proposed single family units, duplexes, club houses, golf facilities (including a restaurant and day care center), recreational amenities (including a pool and tennis courts), and open space (including trails and overlooks). The proposed amended PUD calls for zone district and text amendments to allow for an increase in density of ten (10%) percent. This increase in density is requested to accommodate the condition of thirty (30) affordable housing units in -lieu of incorporating such units from within the originally approved density for this project. Page 6 of 20 The proposed amended PUD calls for 322 residential units on the 440 acre site for an average density of 0.60. Of the conditionally required 29.2 (30 rounded) affordable on- site units, the applicant proposes that ten (10) be configured as rent restricted rental units within the club home area. The remaining twenty (20) affordable on-site units are proposed to be amended as twenty (20) price restricted lots within a club home parcel expanded by two (2) acres to be designated as a separate parcel. These two (2) acres have been pulled from the original golf course and open space area. Aside from the removal of one overlook proposed to be located along the trail west of County Road 109, the proposed golf course facilities and recreational amenities shall remain as originally approved. B. Additional PUD Amendments Requested: The applicant is requesting an amendment to the Board of County Commissioners' resolution of conditional approval to allow grading in areas exceeding thirty (30%) percent slope. The Board stated in Resolution 98-80 that grading shall not be proposed or conducted on slopes greater than thirty (30%) percent. The applicant states that grading in areas greater than thirty (30%) percent slope are proposed to occur in the water tank site, water tank access road, golf cart path up the drainage gulch, golf cart underpasses below County Road 109, and some areas within the golf course. 2. The applicant is requesting an amendment to the Board of County Commissioners' resolution of conditional approval to allow buildings to be located less than one hundred (100) feet from the Roaring Fork River bank. The Board established in Resolution 98-80 a minimum setback for buildings lots at one hundred feet (100') from the river bank. The applicant is requesting an amendment to the Board of County Commissioners' resolution of conditional approval to allow non-native grasses for planting on fairways and lawns. The Board stated in Resolution 98-80 that the applicant will make use of native vegetation which requires less water consumption by requiring the planting of native grasses on all fairways and lawns on the site. C. Subdivision: The proposed PUD calls for 322 homes on lots ranging in size from over one (1) acre to 8,000 square feet. The club houses will have a density of six (6) units to the acre. The PUD calls for one new zone districts on the site, Golf II, for a range of districts as follows: ► River Residential 1 Zone District ► River Residential 2 Zone District ► 20,000 Square Foot Residential District ► 15,000 Square Foot Residential District Page 7 of 20 ► 9,000 Square Foot Residential District ► Duplex Residential Zone District ► Club Homes Residential Zone District ► Common Open Space Zone District including ► Community Park ► Golf Course ► Community Open space ► Golf II Clubhouse Apartment new district addition (see Figure 24). D. Comprehensive Plan Compliance: The Garfield County Comprehensive Plan of 1994 lists housing, transportation, traffic mitigation, street design, visual corridor, recreation, open space, fishing/rafting activities, rural landscape, trails, wildlife habitat, water and sewer systems, environmental constraints, natural drainages, wetland and riparian areas, soil constraints, ecological resources, and excessive cut and fill goals which apply to this proposal. E. Soils/Topography: The "Preliminary Geotechnical Study Rose Ranch Development County Road 109 Garfield County, Colorado" reports that alluvial fans form an alluvial apron along the base of the bluff in the eastern part of the project area. River alluvium is present along the river channel and five (5) terraces are adjacent to the channel. Sinkholes of twenty (20') feet to two -hundred (200') feet are present on the site and have a depth of between one (1') foot to twenty (20') feet. Additionally, smaller sinkholes are present on the property. These sinkholes result from the collapse of subsurface voids in the formation rock and in terrace deposits. The report states that the more severe constraints are associated with the alluvial fan flooding and the potential for sinkholes which may require some modification of the project design. The report also notes that the ephemeral channels and the alluvial fans are susceptible to debris floods and viscous debris flow landslides associated with intense rain and snow melt. Additionally, the entire fan surface is considered a potential flood area; therefore, channel and bank stability may be critical. The report recommends that no grading should be considered on slopes greater than thirty (30%) percent. F. Road/Access: Access to the site is from County Road 109 via County Road 154 and State Highway 82. The proposed PUD will utilize an easement though the West Bank subdivision for golf cart travel through a canyon to access the golf holes located atop the steeply sloping Page 8 of 20 terrain. Three (3) golf cart underpasses are proposed to be installed under CR 109 to cross this roadway. A permit. from the Army Corps is required, for any activity within this canyon drainage area. G. Fire Protection: The application will meet the minimum required water system flow rate of 1,500 gallons per minute. H. Water: The application has not included evidence of a water court approved augmentation plan. The applicant has proposed to utilize surface water diversions through the Robertson Ditch, the Glenwood Ditch, and from the Roaring Fork River. I. Wastewater: The applicant has secured adequate sewage treatment capacity from the Roaring Fork wastewater treatment plant for the project. J. Road Impacts: The applicant has provided staff with a Highway Access Permit. Access to the highway has been granted as evidenced by this permit. The applicant is proposing signalization of the intersection of County Road 154 with State Highway 82 at Phase I. The Traffic Study contained within the application notes that signalization of the intersection is recommended to improve an otherwise failing intersection whose condition will worsen with the proposed increase in development. The Colorado Department of Transportation may require a grade separated intersection. K. PUD Requirements: The proposed PUD amendment to allow for twenty (20) price restricted lots in -lieu of the construction of twenty (20) deed restricted units is not in compliance with the Board of County Commissioner's resolution of condition approval which states that the applicant "provide a preliminary plan for ten percent (10%) of the total housing units proposed as attainable housing units to he located on the project site." RECOMMENDED FINDINGS: Page 9 of 20 A. The Board of County Commissioners must be able to confirm the following facts before granting approval of the proposals: 1. That proper public notice was provided as required for the hearing before the Board of County Commissioners. 2. That the hearing before the Board of County Commissioners was extensive and complete, that all pertinent facts, matters and issues were submitted and that all interested parties were heard at that meeting. That the proposed PUD Amendment and the proposed Preliminary Plan is in the best interest of the health, safety, morals, convenience, order, prosperity and welfare of the citizens of Garfield County. 4. That the application is in conformance with the Garfield County Zoning Resolution of 1978, as amended, and the Garfield County Comprehensive Plan of 1994, as amended. VI. OUTSTANDING PLAN DEFICIENCIES The following deficiencies exist in the current preliminary plan application, which have still not been adequately addressed, and must be fully remedied. A. Information contained within the application including those listed below: 1. The applicant shall make three (3) locations on the north end of the West Bank Golf Course available for public access for fishing while working with the Division of Wildlife on siting these locations. The applicant shall propose the three (3) locations - pending review by DOW. 2. The permit applicant shall ensure the donation of the following public finances to the Roaring Fork Transit Agency at the time of building permit: a. provide for rolling stock capacity equivalent to $184,201of a transit bus and a life span of twelve (12) years; b. commit to an operating subsidy of $18,300; c. finance a Park and Ride facility adjacent to SH 82 with an estimated cost of $222,254; and d. support parking lot maintenance and snow removal at a cost of $10,478 per year. Page 10 of 20 3. The applicant shall provide the following information for review by the Road and Bridge Department of Garfield County: a. show the location of the existing culverts under County Road 109. Design for additional piping under CR 109 to avoid further settlement of the roadway; provide details of the three (3) proposed cart underpasses. Design Guide rails for the roadways above the underpasses. Draft an agreement to transfer maintenance responsibility of the golf cart underpasses to the subdivision/golf course. The applicant, or subsequent golf course owner, shall maintain and clean the concrete structures protecting the golf path with each debris flow event; c. relocate the twelve (12") inch water main, proposed to be placed within the right-of-way of CR 109, further on-site to avoid additional settlement of the roadway, provide turn lanes on CR 109 for vehicles entering the Rose Ranch development due to the quantity of traffic projected to be generated by the subdivision and golf facilities; e. construct the proposed improvement to CR 109 near River Ranch Drive to the same standards as the existing roadway with a minimum of four (4") inches of asphalt; and f. design a two-way stop for the junction of CR 109 with CR 154. The applicant shall ensure at the time of final plat security for tap fees or proof of payment for the tap fees for the entire project. B. All representations made by the Applicant in relationship to the wildlife plan including the following items listed below: The applicant shall create a mitigation plan which describes conformance with the Division of Wildlife's conditions, as part of the preliminary plan submittal, including the following: a. place educational signs at the primary overlook regarding golden eagle nesting, and undertake the closure of the ridge south of the eagle's nest from 15 March through 1 July with fines imposed on those found in violation, Page 11 of 20 b. place within the protective covenants the closure of the upper golf course and ridge to human activity, excluding maintenance, from 1 December through 31 March with a gate and a sign and fines imposed for any violation thereof; c. install habitat improvement measures on the upper bench west of CR 109, undertake the development of a site plan with the DOW, and provide for the maintenance and the protection from disturbance of the native vegetation outside of the golf course, change Article IV #12(d)(ii) page 16 in the covenants and remove any references to converting the native vegetation to grasses in the 110 foot buffer between Teller Springs and Rose Ranch; d. forbid the construction of the water tank and the line west of CR 109 from 15 March through 1 July due to golden eagle nesting activities; e. plant vegetation along the east boundary of proposed Lots 108 through 118, 70 through 80, and 76 through 77 in accordance with the vegetative screen plan approved by the DOW; f. in addition, modify the southernmost Roaring Fork River overlook and move the trail and overlook back to Lot 96, and fence and sign the area during the heron's critical nesting period; g. create an educational brochure for distribution to all homeowners on how to live with wildlife; h. ensure a 50 -foot setback from the wetlands to the home -site by setting flags in the field and provide language in the covenants to ensure this; i. maintain the 110 foot buffer between Rose Ranch and Teller Springs in native vegetation, ensure such vegetation retention in the covenants, and install vegetative screening along all of those lot boundaries; j. provide a public fishing easement along the West Bank property downstream from the bridge; k. include the language agreed to in the DOW letter of 5-4-98 on page 3 regarding the hazing of elk and deer from the golf course in the covenants; 1. include the language contained in Figure 4 page 3 (attached) in the covenants; Page 12 of 20 m. note that the Division of Wildlife is not liable for damage caused to landscaping, ornamental plants, or the golf course caused by deer and elk or other wildlife; n. note that homeowners and golf course personnel will be responsible for the proper disposal of carcass' struck by vehicles; o. install an artificial nesting platform on the east side of the river by the rookery to take place during the summer or early fall after the herons have abandoned the rookery for the year; and P. prohibit the construction of second story decks and/or balconies facing the rookery for proposed Lots 108 through 118 unless a screening plan subject to approval by the Division of Wildlife is submitted; C. All representations made by the Applicant concerning the Carbondale & Rural Fire Protection District including the following items listed below: 1. Information to be submitted with the preliminary plan including the following: a. ensure that water supplies from the Rose Ranch development are made available for future extension to these areas for fire protection purposes. Stub and size the lines appropriately so that they are available for future tap -ins for fire flow, and b. provide impact fees adopted by the Carbondale & Rural Fire Protection District which are due prior to recording of a final plat; D. All items indicated in the resolution of conditional approval including the following items listed below: 1. Grading shall not be proposed or conducted on slopes greater than thirty (30%) percent. Rebuild the road or provide the finances to do such should irrigated golf course holes 11 and 12 immediately above County Road 109 result in a continuation of road damage. The preliminary plan shall provide the method by which the owners of the golf course will secure performance of this obligation. 3. At the time of preliminary plan submittal, the developer shall provide the method by which indemnification will be financially secured. Page 13 of 20 4. Make use of native vegetation which requires less water consumption by requiring the planting of native grasses on all fairways and lawns on the site. The plan shall also abide by the recommendations of the consultant's golf course management report at the time of preliminary plan submittal. 5. Provide cash in -lieu -of the calculated dedicated land, to be paid at the time of final plat approval, to compensate for the increase in school children generated from this proposed development. The cash amount shall be set at the time of final plat. 6. Establish a minimum setback for buildings lots at one hundred feet (100') from the river bank at the time of the preliminary plan submittal. 7 Provide a preliminary plan for ten percent (10%) of the total housing units proposed as attainable housing units to be located on the project site. The housing shall be created to accommodate individuals who earn within 80% of the median income in this valley with no more than 1/3 rd of their income spent on total housing costs. Price restricted lots do not conform with this condition of approval which clearly states "housing units" which are "to be located on the project site." Provide plans and a construction schedule at the time of preliminary plan submission regarding the following: a. construct a controlled intersection upon approval of the first final plat unless the Colorado Department of Transportation (CDOT) requires a grade separated intersection. In which case, the applicant shall contribute its fair share of the total cost to construct a grade separated access at the intersection of SR 82 with CR 154; and b. utilize the existing CMC turnoff intersection for left-hand turns to serve this project. Unless a signalized intersection is approved by CDOT at this location, left-hand turns shall be eliminated for safety reasons. 9. Provide payment of the applicable road impact fee at the time of final plat approval. 10. The applicant will be allowed to use a maximum building height of up to thirty-five (35') feet in all areas except PA 3, PA 8, and PA 9. 11. Require xeriscape landscaping measures for all proposed homes located on the unirrigated alluvial fan and collapsible soils within the development as part of the covenants at the time of preliminary plan submission. Page 14 of 20 All recommendations of conditions of compliance as contained within the letter from Wright Water Engineers dated28 April 1999 as itemized below: (see Figure 25). The Engineering review's primary concerns relate to wetlands 404 permitting and drainage along the golf cart path in the Northeast Dry Park Drainage [Sections 4.91.C, 4.80.D, 4.94 4.92.C, 9.51, and 9.41]. This report presents Wright Water Engineers' review of supplemental information submitted for the Rose Ranch Preliminary Plan. The supplemental information includes the following: • Letter from High Country Engineers (HCE) to Victoria Giannola dated April 7, 1999. • Revised drawings prepared by HCE dated March 24, 1999. • Letter from U.S. Army Corps of Engineers (USACE) to HCE dated April 5, 1999. • Revised drawings prepared by HCE dated April 20, 1999. • Scour calculations prepared by HCE dated April 20, 1999. • Final decree in Case No. 97CW236 dated March 22, 1999. • Westbank well location map prepared by HCE dated January 12, 1999. • In addition, Wright Water Engineers, Inc. (WWE) met with County staff and the applicant's consultants on April 8, 1999 to discuss the status of new submittals and reviews and the concerns with 404 permitting raised in the USACE's April 5, 1999 letter. CART PATH 1. Provide the final documentation on the Section 404 permitting as required by the United States Army Corps of Engineers (USACE). The revised cart path layout, grading, and drainage appear to address the concerns raised by Wright Water Engineers, Inc. (WWE). However, we have not seen any documentation on final resolution of Section 404 permitting issues with the USACE 2. The structural design of the wood boardwalk may require minor modifications for the cart path at approximately Stations 7+80 and 9+40. The size of piers would likely be increased if bedrock was not encountered within five feet of the ground surface. Page 15 of 20 WETLANDS 404 AND PERMITTING 3. As mentioned above, we have not seen documentation on the final resolution of Section 404 permitting with the USACE. WWE spoke with David Steinmann of PWC and he indicated that the USACE would be providing a written response prior to the May 4, 1999 BOCC hearing. We also spoke with Sue Nall at the USACE and she indicated that the USACE is preparing a letter which will include the following: ► The raised boardwalk will not be regulated as fill discharged into waters of the U.S. assuming adequate water conveyance is provided. Water conveyance is the primary function of this drainage. ► A permit will be required for the debris flow structures, County Road 109 underpass, and road crossings of the drainage. It appears that these items could be permitted under a Nationwide 26 Permit. The USACE is asking the applicant to submit additional information in support of a Nationwide 26 Permit. The information will be forwarded to the Environmental Protection Agency, United States Fish and Wildlife Service, and Colorado Division of Wildlife for a pre -construction notification review process. After receiving comments, the USACE will make a determination regarding authorization of the project under a Nationwide 26 Permit. 4. The grading and drainage for the proposed golf hole No. 15 has been revised to address the USACE's concern with filling and culverting the existing drainage channel. The debris flow crib wall structures were modified to reflect the drainage changes. The proposed enlargement of the existing ponds on the Westbank golf course may require 404 permitting. There was no correspondence in the submittal regarding this issue. David Steinmann said he received a letter from the U.S. Army Corps of Engineers confirming that no permitting was required. WATER SUPPLY - Westbank Wells ► Three potential mitigation measures to protect the Westbank wells from golf course fertilizers and pesticides were discussed with the applicant in a teleconference with the County staff on April 8, 1999. We received follow up correspondence on this issue on 28 April 1999 (see Figure 26). 6. A minimum 100 -foot separation buffer shall be maintained between any new golf course area and the three existing Westbank wells. WWE believes that the other two mitigation measures (a non-fertilizer/non-pesticide use zone and the organic fertilizer/pesticide use only zone) would be difficult to implement from a practical operations and maintenance standpoint. Page 16 of 20 F. All items recommended by the Planning Commission and listed by the Board of County Commissioners at the public hearing as itemized below: 1. The developer shall compensate the County for retention of an independent geotechnical engineer to review and to monitor all of the mitigation measures that were proposed in the applicant's submission for both the preliminary plan and the final plat. G. All recommendations of conditions of compliance as contained within the letter from the Colorado State Geological Survey dated 4 December 1998 as itemized below: Recommendations of the geotechnical consultant must be complied with including the following: a. Follow the designs shown on the PUD construction documents; and b. Require site specific foundation investigations and drainage recommendations [Section 9.12]. He All recommendations of conditions of compliance of the Roaring Fork Railroad Holding Authority: 1. RFRHA has stated the following requirements: a. the applicant must not encroach upon the railroad right-of-way with the proposed road improvements; and b. the applicant shall conduct a survey of the right-of-way and place physical barriers along the property line which would serve to forbid any improvements from impacting the railroad property. I. PUD and Preliminary Plan Deficiencies: The PUD zone district text shall define "home offices" and shall include home-based child care as a permitted use within higher density zone districts. 2. The layout of the internal parking lot for the clubhouse and golf course should show the placement of stop signs at the internal intersections to ensure safe traffic flow within the parking area [Section 4.60.D]. Page 17 of 20 3 The recommendations for mitigation of settlement and distress to buildings, roadways, and utilities as contained within the Hepworth-Pawlak report of 10 September 1998 shall be adhered to during site construction [Sections 4.60.E and 4.70.A]. The provision that unused garden plot area could be landscaped shall be removed and instead language shall allow the placement of native lawn seed for these areas considered to be temporarily not in use. 5. A vicinity map from the U.S.G.S. quadrangle shall be included on the preliminary plan map which shows the entire area of the proposed subdivision [Section 4.50.E]. 6. The land use breakdown, including total area, number of lots, number of dwelling units, area of non-residential floor space, dwelling units, off-street parking, and density shall be transferred to the plan sheet [Section 4.50.J]. 7. An evaluation of potential radiation hazards shall be prepared for the subdivision [Section 4.60.F]. 8. All utility and road maps shall be labeled "Not for Construction" [Section 4.93]. 9. Provide a Phasing Plan which shall ameliorate the impacts upon the housing needs generated by the project at the time that those impacts would arise [Section 4.50.B]. 10. The site plan shall show the location of the proposed (20) affordable housing units [Sections 4.50.G and 9.20]. 11. The site plan shall locate the proposed duplex structures on the plan sheet and the associated internal travel circulation pattern [Section 9.20]. VII. RECOMMENDATION OF STAFF A. Request for PUD Amendment: It is recommended that the Garfield County Board of Commissioners approve with conditions the application for the Rose Ranch Amended PUD (see Figure 27). The proposed increase in density to meet the requirements of affordable housing does not result in substantial change to the design of the subdivision nor does it result in adverse impacts upon the site. While the applicant's request to construct ten (10) rent restricted affordable rental units and design a new zone district labeled Golf II Clubhouse Apartments should be approved, the request to provide merely price restricted lots without actual units should be denied as it is in direct conflict with the recorded resolution's condition of approval to provide affordable housing units on-site. Page 18 of 20 However, the requested text amendments regarding setbacks from the river, non-native landscaping, and grading on steep slopes is in direct opposition to the resolution of conditional approval issued by the Board of County Commissioners. In particular, the request to conduct extensive grading on slopes above thirty (30%) percent is in direct conflict with the applicant's consulting geotechnical engineer's report which states that no grading should be considered on slopes greater than thirty (30%) percent. Therefore, staff recommendation is approval of the proposed density increase from 292 units to 322 units with the condition that the increase in thirty (30) units consist of ten (10) rent restricted rental units within the newly designated Golf II Clubhouse Apartment Zone District and twenty (20) deed restricted affordable housing units which are to be located on the project site. All other requests for PUD Amendments are to be prohibited. B. Request for Preliminary Plan Review: The staff concurs with the Garfield County Planning Commission's recommendation of conditional approval with the exception of item VIII.A.6. VIII. PLANNTNG COMMISSION RECOMMENDATION A. Request for Preliminary Plan Review: The Garfield County Planning Commission has put forth a recommendation of conditional approval of the Preliminary Plan application for Rose Ranch based upon the staff items listed above (which include V.A.1,3a-f, 4, 5; B.la-q; C.1a-b; D.2, 3, 5, 6, 8, 9a -b, 10, 12, 13, 14; E.1-12; F.1; G.1 a -b; H.la-b; and I.1-11) in addition to the following items: 1. Complete the cart path redesign in the drainage gulch before appearing before the Garfield County Board of Commissioners and at least two weeks prior to the scheduled hearing before the Board. 2. Obtain preapproval for the three golf cart underpasses and the road work on County Road 109. 3. Finalize copies of the indemnification agreement for securities for County Road 109 in the event of damage. 4. Complete all conditions outlined in the engineering review by Wright Water Engineers. Obtain an letter of material non -injury from he Division of Water Resources regarding water rights and usage. Page 19 of 20 6. Establish a structure for the collection of $750.00 per unit to be issued to the Roaring Fork Transit Authority for public transit facilities and services. B. Request for PUD Amendments: The Garfield County Planning Commission put forth a recommendation of approval of the application to allow grading on slopes above thirty (30%) percent in specified areas for the Rose Ranch Amended PUD to the Garfield County Board of Commissioners. The Garfield County Planning Commission put forth a recommendation of approval of the application to allow planting of non-native landscaping in accordance with the Golf Course Management Plan for the Rose Ranch Amended PUD to the Garfield County Board of Commissioners. 3. The Garfield County Planning Commission put forth a recommendation of approval of the application to allow setbacks on specific buildings lots of between 70 and 90 feet from the river bank for the Rose Ranch Amended PUD to the Garfield County Board of Commissioners. 4. The Garfield County Planning Commission put forth a recommendation of approval of the application to allow a maximum building height of up to thirty-five (35') feet in specified areas for the Rose Ranch Amended PUD to the Garfield County Board of Commissioners. The Garfield County Planning Commission put forth a recommendation of conditional approval of the proposed density increase from 292 units to 322 units with the condition that the increase in thirty (30) units consist of ten (10) rent restricted rental units within the newly designated Golf 11 Clubhouse Apartment Zone District and twenty (20) deed restricted affordable housing units which are to be located on the project site. Page 20 of 20