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HomeMy WebLinkAboutWPO201400087 Correspondence 2014-09-30 , S Nitro,' e n,4 ENGINEERS ......,, SURVEYORS PLANNERS ASSOCIATES September 30,2014 Christopher P. Perez Senior Planner County of Albemarle Department of Community Development 401 McIntire Road,North Wing Charlottesville, Virginia 22902 Re: The Lofts at Meadowcreek—Final Site Development Plan WWA Project No. 213001.05 Dear Mr. Perez: This letter is to document and respond to the initial site plan review comments as issued by County Agencies. Our Responses are as follows: Planning—Christopher Perez August 6,2014 Initial Site Plan 1. Comment: [COD Section I, 8.5.5.3] Street landscaping. VDOT comment#4 dated 8-5-14 requires the street tree landscaping along Rio Road to be relocated out of the landscaping strip in the right-of-way due to Clear Zone requirements. The street tree landscaping is depicted in the application plan for ZMA2013-00001 and is required; however, the required plantings can be relocated outside of the landscape strip to where VDOT requires it. In order to facilitate the relocation of the street tree landscaping a Variation request will need to be requested and processed to modify the typical street design requirement and the application plan from the rezoning. This item can be handled at the final site plan stage. The Variation will be reviewed through the special exception process, if staff is recommending approval of the variation it will to the BOS on consent agenda. If staff is recommending denial it will be required to go the PC first and then the BOS. Response: The street trees are being required to be located outside of the clear zone by VDOT. This results in the trees being located approximately 12.5 feet to the west of that shown on the ZMA Application Plan. It should be noted that VDOT reviewed the approved Application Plan during the ZMA process. It is understood that VDOT has reconsidered the street tree location since that time. A variation is not required or warranted as street trees along Rio Road are being provided in accord with the approved Application Plan and Code of Development. Only the location has been modified to accommodate VDOT. 3040 Avemore Square Place •Charlottesville,VA 22911 Telephone(434)984-2700 •Fax(434) 978-1444 Charlottesville •Lynchburg 2. Comment: [COD Section I, 8.5.5.3] Landscaping strip.VDOT comment#5 dated 8-5-14 requires the landscaping strip along Rio Road to be six (6) foot wide, rather than the five (5) foot wide as provided. The landscaping strip is depicted in the application plan for ZMA2013-00001 as five (5) foot wide and is required; however, it can be modified to meet VDOT requirements if needed. In order to facilitate the relocation of the street tree landscaping a Variation request will need to be requested and processed to modify the typical street design requirement and the application plan from the rezoning. This item can be handled at the final site plan stage. The Variation will be reviewed through the special exception process; if staff is recommending approval of the variation it will go the BOS on consent agenda. If staff is recommending denial it will be required to go to the PC first and then the BOS. Response: The street trees are outside of the VDOT R-O-W(see response to previous Comment 1 and VDOT Comments 4 and 5). The width of the landscape strip is acceptable to VDOT as there will be no plantings. 3. Comment: [COD Section I, 8.5.5.3,32.5.2(n), 4.12.16(c)(3)]Angled Parking Spaces. VDOT comment#9 dated 8/5/14 requires the two (2)parking spaces along the entrance from Rio Road to be relocated to meet minimum throat length IF the two parking spaces Are to be relocated from what is depicted on the application plan from the rezoning then a Variance shall take place. IF the two spaces can be pushed back slightly to meet the throat length but are in the same general location and design, a Variation will not be needed. Response: These parking spaces have been revised to perpendicular type, have been annotated with appropriate dimensions and have been shifted approximately 5 feet to meet the VDOT throat length requirement(35' from the adjacent Rio Road travel lane). 4. Comment: [32.5.2(n) 4.12.16(c)(3)] Angled Parking Spaces. Also, for the two spaces mentioned above provide the angle of these spaces so staff can verify they meet the required dimensions per section. 4.12.16 (c)3. Response: These parking spaces have been revised to perpendicular type and have been annotated with appropriate dimensions. 5. Comment: [32.5.2(n) 4.12.16(c)(4)] Curvilinear Parking Spaces. For the first curvilinear space after you enter the site provide a one-hundred (100) foot sight distance line on the plan. Response: The requested sight distance has been added to Drawing C-6. 6. Comment: [COD Section I, 8.5.5.3] Pedestrian Path. The pedestrian path is depicted on the application plan for ZMA2013-00001 as going around the rear of the 3040 Avemore Square Place •Charlottesville,VA 22911 Telephone(434) 984-2700 • Fax(434) 978-1444 Charlottesville •Lynchburg Page 2 of 18 Nape ..✓ building and meeting up in the general of the dumpster pad at the front of the building. The original path design provided access to the open space on the southwestern portion of the property. Instead, on the site plan the path has been modified to double back and lead to the passive recreation area near the pond and rear of the building. Staff suggests the original design/layout of the path also be incorporated into the site plan, in addition to what is depicted on the site plan. Regardless of the design in order to facilitate a change from the application plan/rezoning a Variation request will need to be requested and processed to modify the path location. This item can be handled at the final site plan stage. The Variation will be reviewed through the special exception process, if staff is recommending approval of the variation it will go to the BOS on consent agenda. If staff is recommending denial, it will be required to go to the PC first, then the BOS. Response: The pedestrian path has been reconfigured to be in compliance with that shown on the approved ZMA 2013-00001 Application Plan; thus, a variation is no longer warranted. 7. Comment: [ZMA2013-1,Proffer#2] Transit Reservation Area. On the site plan, label and depict the small transit shelter associated with the bus stop. Response: The transit shelter has been added to the plan and labeled as such(see Drawing C-6 and detail on Drawing C-10). 8. Comment: [32.5.2(a) & (o) & Proffer#1] —Rio Road Improvements. On the plan clearly delineate with shading any area proposed to be dedicated for the improvements to Rio Road. Also,provide a note stating that the land is to be dedicated for public use. Response: The requested shading and note has been added to Drawing C-6. 9. Comment: [ZMA2013-1,Proffer#1] Rio Road Improvements. Prior to final site plan approval the Rio Road widening/dedication to public use will need to take place on a subdivision plat to be reviewed by the County, approved, and then recorded in the Clerk's Office prior to final site plan approval. The DB page information of this action shall be provided on the final site plan. Response: The requested plat will be submitted under separate cover. 10. Comment: [ZMA2013-1, Proffer#3] Affordable Housing. "Each site plan for land within the property shall note the aggregate number of units designated for Affordable Units"Provide the affordable unit information on the site plan for staff to verify the requirement is met. Response: Affordable housing has been addressed in the tabulation on Drawing C-2. 3040 Avemore Square Place • Charlottesville,VA 22911 Telephone(434) 984-2700 • Fax(434)978-1444 Charlottesville •Lynchburg Page 3 of 18 11. Comment: [32.5.2(n),4.12.16(c)(1)] Perpendicular Parking Size. Throughout the plan label the aisle widths, including in the parking areas. Spaces along a 24'aisle shall be 9'wide by 18'long. Response: The parking spaces have been dimensioned as necessary (see Drawing C-6). 12. Comment: The design of the parking garage does not provide a vehicle turnaround location to be used when all the spaces are full. Rather vehicles will be prompted to reverse out of the site if the lot is full. For safety reasons it is suggested that two spaces at the northern end of the unit are stripped for no parking to facilitate vehicle turn around, such as would be for a hammer head turn around. Response: A turnaround at the north side of the garage has been provided. A turnaround at the south side of the garage is not warranted due to length of travel. 13. Comment: [4.12.6] Parking. On the plan depict the required parking spaces based on the use, show the calculations. Continue to depict the spaces provided. Staff understands a parking waiver was processed at the rezoning stage; however,the overall mix of unit types has changed since the rezoning. Previously it was 40-single bedroom units, now it is 35-single bedroom units. Previously it was 25—two bedroom units, now it is 29—two bedroom units and 2-three bedroom units. Provide the revised information so that Zoning can determine if the parking provided is still adequate. Response: A parking tabulation has been added to Drawing C-2. The bedroom count has been revised. 14. Comment: [32.5.2(a),32.7.3(a),32.5.6.i,32.7.2.3(a)(c)] Sidewalks. The sidewalks fronting the property shall be built to the side property lines. Currently each sidewalk stops 10 feet short of the property line. Revise. Response: The sidewalk has been extended to the property on the north and south side. 15. Comment: [32.5.2(n),32.7.2.3(a), 14-422] Sidewalks and landscaping strips. On the plan please dimension and label all proposed sidewalks and planting strips. Response: The plan has been dimensioned accordingly(see Drawing C-6 and road cross section details on Drawing C-10). 16. Comment: [32.5.2(a) & (n)] General Information. The zoning of the property is correctly labeled as NMD. Also, under the zoning of the property provide a note that proffers are associated with ZMA2013-1. Staff understands that page two lists the proffers, but sheet 1 under zoning should also state that proffers apply per the rezoning ZSMA2013-1. 3040 Avemore Square Place • Charlottesville,VA 22911 Telephone(434) 984-2700 •Fax(434) 978-1444 Charlottesville ■Lynchburg Page 4 of 18 Niue Response: The title at the top of Drawing C-1 denotes proffers as well as the zoning under Site Data. 17. Comment: [32.5.2(d),30.7.5] Managed and Preserved Slopes. This parcel no longer contains "critical slopes"; it has a combination of both"managed slopes"and "preserved slopes"based on the approved overlay map. Show both the managed and preserved slopes as represented on the approved map and label them accordingly. These slopes should be shown on the site plan as well as the existing conditions sheet to give a better understanding of the impacts on each type of slope. The proposed disturbance of the preserved slopes is allowed based on the exhibit and special exceptions approved with ZMA201300001 which requires construction in the area. Additionally, disturbance of managed slopes is now permitted without a waiver as long as certain performance standards are met. Coordinate with engineering to make sure the construction proposed on the managed slopes meet these requirements. Response: The critical slopes have been annotated as preserved and managed on Drawing C-5 and are based on field survey to establish slopes 25% and greater. 18. Comment: [32.5.2(a)] Setbacks. On Sheet 1 of the site plan assure that the 10'setbacks are noted. Response: The setbacks have been added under Site Data on Drawing C-1. 19. Comment: Throughout the plan provide directional arrows for the drive aisles. Response: Directional arrows have been added to the drive aisle to denote circulation. 20. Comment: [32.5.2(b)] On Sheet 1, revise site data information to break down how 70,696SF of Open Space is being provided onsite. Notably, sheet 10 does not depict enough open to have 70,696SF of Open Space. Please address this. Revise. Response: The open space has been corrected. 21. Comment: It appears as though only one (1) dumpster is being provided onsite. Being there are to be 65 units in the multifamily development, it seems appropriate more dumpsters will be required to handle all the waste product. Assure the amount of dumpsters is provided which will adequately service the development. Response: A single dumpster is sufficient for 65 multi-family dwelling units as based on the owner's/developer's/applicant's knowledge obtained from owning and operating multi-family rental apartment buildings of similar size. 3040 Avemore Square Place • Charlottesville,VA 22911 Telephone(434) 984-2700 •Fax(434) 978-1444 Charlottesville •Lynchburg Page 5 of 18 22. Comment: [4.17] Lighting. On sheet 1, under Notes,the lighting note shall be revised, as lighting shall not exceed one half(0.5) foot candle. Revise to provide the following standard lighting note on the lighting plan: Each outdoor luminaire equipped with a lamp that emits 3,000 or more initial lumens shall be a full cutoff luminaire and shall be arranged or shielded to reflect light away from adjoining residential districts and away from adjacent roads. The spillover of lighting from luminaires onto public roads and property in residential or rural areas zoning districts shall not exceed one— half foot candle. Response: This note has been deleted from the cover sheet. Drawing C-26 has been added to the plan to address the exterior lighting. 23. Comment: If any off-site easements are required they must be approved and recorded prior to Site Plan approval. Response: There are no off-site easements required for the development of this property. 24. Comment: This site plan cannot be approved until all reviewers complete their reviews; comments will be forwarded upon receipt. Response: Acknowledged. 25. Comment: [32.5.2(n) & (p)] The following will be required for final site plan approval: • Outdoor lighting information including a photometric plan and location, description and photograph or diagram of each of our outdoor luminaire [Sec. 32.7.8 & Sec. 4.17] • A landscape plan in accordance with [Sec. 32.7.9] and the Code of Development associated with the rezoning. Response: Albemarle County Code compliant landscaping and lighting has been provided (see Drawings C-6, C-7, C-22, C-23 and C-26). Landscaping and Lighting 1. Comment: [32.5.2(n)] Show proposed lighting locations on the layout, utility and landscape sheets to verify no conflicts exist. Response: Exterior lighting has been added to the requested sheets. 2. Comment: [4.17] On the light plan include cut sheets for proposed lights and provide legible photometric plan on final site plan. Response: The requested information has been added to Drawing C-26. 3040 Avemore Square Place • Charlottesville,VA 22911 Telephone(434) 984-2700 • Fax(434) 978-1444 Charlottesville■Lynchburg Page 6 of 18 3. Comment: [32.5.2(p) & 32.7.9.4(b)] Existing trees may be preserved in lieu of planting new plant materials in order to satisfy the landscaping and screening requirements of section 32.7.9, subject to the agent's approval. If you intend to use existing trees to satisfy any of the landscape plan requirements, please include the following: • Areas and other features shown on landscape plan. The landscape plan shall show the trees to be preserved,the limits of clearing, the location and type of protective fencing, grade changes requiring trees wells or walls, and trenching or tunneling proposed beyond the limits of clearing. • Conservation checklist. The applicant shall sign a conservation checklist approved by the agent to ensure that the specified trees will be protected during construction. Except as otherwise expressly approved by the agent in a particular case, the checklist shall conform to the specifications in the Virginia Erosion and Sediment Control Handbook,pages III-393 through III-413, and as hereafter amended. Response: Existing vegetation has not been utilized to satisfy these requirements except for screening along the western boundary. The checklist has been added to Drawing C-18. 4. Comment: [32.5.2(p),32.7.9.5] When a parking lot is located such that parked cars will be visible from a public street, low shrubs should be planted to minimize the view of the parked cars. The parking above ground parking will be visible from Rio Road; on the landscape plan provide shrubs to screen the parking area from Rio Rd. Response: The landscaping plan is in conformance with this requirement. 5. Comment: [32.7.9.6] Landscaping within a parking area. Parking lot landscaping shall apply to above ground parking. Response: The landscaping plan is in conformance with this requirement. 6. Comment: [32.7.9.8] Tree Canopy. On the plan provide the calculations for the tree canopy,to include required and provided. Response: Tree canopy calculation has been added to Drawing C-23. 7. Comment: [32.5.2(p) & 32.7.9.7] Proposed SWM Facility should be screened from the adjacent residential lots. Response: The landscaping plan is in conformance with this requirement. 3040 Avemore Square Place • Charlottesville,VA 22911 Telephone(434) 984-2700 • Fax(434) 978-1444 Charlottesville ■Lynchburg Page 7 of 18 8. Comment: [32.5.2(p) & COD Section X] On the landscape plan associated with the final site plan, provide a chart or other schedule demonstrating how the required Landscape Treatment requirements listed in Section X of the Code of Development are being satisfied. Response: The requested information has been added to Drawing C-23. RWSA—Victoria Fort August 6,2014 1. Comment: In addition to the comments provided by ACSA, RWSA requests that the applicant provide an estimate of future sewer flows from this development. If projected flows are in excess of 40,000 gallons per day, the project will require a flow capacity certification from RWSA prior to final site plan approval. Response: The requested information has been added to Drawing C-2. Flows are less than 40,000 gpd. ACSA—Alexander J. Morrison,E.I.T.July,23 2014 1. Comment: Relocate water connection so it is an extension of the existing watermain on TMP#61A-29. Response: An easement cannot be obtained from the adjacent property owner. We request that the connection be made to existing RWSA facilities as shown on the plan. 2. Comment: The proposed connection to the existing RWSA watermain in Rio road is not an approved connection. Response: See response to ACSA Comment 1. 3. Comment: Call out all fittings. Response: Fittings haven called out on the profiles. 4. Comment: Call out water meter"To be Sized by ACSA". Response: Requested information has been added to Drawing C-6. 5. Comment: Show gate valve on fire line (marks the end of ACSA ownership) Response: Requested information has been added to Drawing C-6. 3040 Avemore Square Place • Charlottesville,VA 22911 Telephone(434) 984-2700 •Fax(434) 978-1111 Charlottesville •Lynchburg Page 8 of 18 6. Comment: Call out backflow prevention. Response: Requested information has been added to Drawing C-6. 7. Comment: Call out sewer lateral invert in as well as the existing invert in, invert out, lid and depth for the manhole. Show ACSA details (found at www.servic eauthority.org). Response: Requested callouts have been added to Drawing C-6. Appropriate details have been added to Drawing C-25. 8. Comment: Include waterline profiles. Response: Profiles have been added to the plan(see Drawing C-25). VDOT—Troy Austin August 6,2014 1. Comment: It appears that the right of way should be adjusted at the entrance to The Lofts at Meadowcreek to accommodate the crosswalk across the entrance. Response: The right-of-way has been adjusted accordingly. 2. Comment: There are two utility poles shown in the bus stop area that will need to be relocated. Response: This is understood. Overhead utilizes are to be moved out of the clear zone (see General Demolition Note 12 on Drawing C-5). 3. Comment: Additional detail, including spot elevations, should be provided at the entrance to the storm water management facility to ensure positive drainage across the entrance and to clarify the transition from curb and gutter to shoulder/roadside ditch. Response: The cross sections on Drawing C-24 demonstrate positive drainage along Rio Road as well as the entrance in question. 4. Comment: The clear zone along Rio Road needs to be considered. It is likely that the street trees shown in the typical sections for Rio Road will not be allowed due to clear zone restrictions. Response: As based on Table 3-1 of the AASHTO 4th Edition 2011 Roadside Design Guide (page 3-3), it appears that a clear zone of 15 feet from the face of curb is appropriate (3.5 feet from right-of-way). Street trees are located 4 feet from the R-O-W. 5. Comment: The minimum width of a landscape strip between the back of curb and the sidewalk is 6' rather than the 5' shown. 3040 Avemore Square Place • Charlottesville,VA 22911 Telephone(434) 984-2700 • Fax(434) 978-1444 Charlottesville •Lynchburg Page 9 of 18 `fir rr' Response: A 5 foot tree lawn/landscape strip will remain as is. No street trees will be planted in this strip. See response to VDOT Comment 4 above. 6. Comment: The pavement design for the Rio Road improvement will need to match the existing pavement structure of Rio Road. Response: The Treasdale Project noted the following pavement structure for Rio Road: 1.5" SM-12.5A, 2" IM-19GA, 6" BM-25PA and 8" 21B. We propose this same section(see Drawing C-10). 7. Comment: Per the 2011 AASHTO Manual,the deceleration taper for the bus stop should be at a minimum a 5:1 ratio, or a minimum of 50' rather than the 30' shown. Please refer to pages 4-69 in the AASHTO Manual. Response: The decel taper has been revised (see Drawing C-6 and detail on Drawing C-10). 8. Comment: Rather than only showing the details from the Work Area Protection Manual, it would be helpful to also show the sign locations and channelizing in plan view, to scale for this project. Response: The Traffic Control Plan is a guideline. The final plan will be subject to the selected contractors means, methods and conditions of the Land Use Permit obtained from VDOT. 9. Comment: The parking spaces located closest to Rio Road do not appear to meet the minimum throat length as defined in Appendix F of the Road Design Manual. Response: The parking spaces have been shifted such that it is 35 feet from the edge of the closest Rio Road travel lane per Table 4-2, Appendix F, Road Design Manual (page F-108) with the Final Site Plan submission. Engineering—John Anderson August 6,2014 Initial Site Plan (Code Chapter 18 section 32) 1. Comment: Update Coordination Note 5, sheet 3 —VSMP Phase 1 Land Clearing General Permit is not an option. Response: The note has been revised to denote that a VSMP Phase 1 Land Clearing General Permit has been acquired by the Owner. 3040 Avemore Square Place • Charlottesville,VA 22911 Telephone(434) 984-2700 • Fax(434)978-1444 Charlottesville ■Lynchburg Page 10 of 18 Nfte 2. Comment: Update General Construction Notes for Streets, sheet 3-Note 1 is now two notes (1 and 2). Ref. ACDSM, p.21-22, [link/.pdf: http://vvww.albemarle.org.asp?dept-cdd&relpage=4447] Response: The notes have been corrected per the DSM. 3. Comment: Minor: Update General Notes for ESC Plans Note 17: "Straw mulch to be applied at 80 lbs/1000SF Response: The note has been revised accordingly. 4. Comment: List"D" in schedule of abbreviations, title page. 'D' appears inside manhole structure symbols, sheets C-6, C-7, and C-8. Response: The schedule of abbreviations on Drawing C-3 has been revised to include the "D". 5. Comment: Confirm design of semi-circular parking area at base of entrance drive ramp and position of dumpster pad allow waste management service vehicles sufficient space to reverse and exit. [AC Code 18-4.12.15.e.] Response: The subject parking area geometrics are sufficient to facilitate the ingress/egress movements of waste management vehicles. 6. Comment: Parking spaces to immediate right and left of parking garage entrance should be replaced with islands. Vehicles cannot use either space without reversing. These spaces impede sight distance for vehicles entering and exiting the parking garage. Eliminate these two spaces and replace with islands [AC Code 18-412.15.f.]. Radii on islands should be 3' minimum. Response: Raised islands have been added to provide separation/barrier between parking spaces and the travelway. 7. Comment: Curvilinear parking spaces (exterior to parking garage require bumper blocks or paint striping 94.12.16). Response: "Bumper blocks"or pavement markings are not warranted as sufficient vehicle overhang in the adjacent grass strip is provided. 8. Comment: Handicapped parking spaces should be located on the east side of the parking facility to eliminate the need to cross vehicle access isle. [AC Code 18-4.12.15.i.] Response: Marked crosswalks from the handicap spaces to the point of ingress have been provided. The handicap access path is ADA compliant. 3040 Avemore Square Place •Charlottesville,VA 22911 Telephone(434) 984-2700 •Fax(434) 978-1444 Charlottesville •Lynchburg Page 11 of 18 ,4410, Niue 9. Comment: Sidewalks—Maximum grade is 5%, revise sections that exceed 5% [VDOT Road Design Manual,Appendix A, p. A-121]. Furnish 1' wide (min.) flat(<2%) area at back of sidewalk leading to biofilter [VDOT Road Design Manual, Appendix A, Fig.,p. A-123]. Response: Pedestrian access has been provided in accord with the ADA requirements as pertinent with the conditions of this particular development. 10. Comment: Relocate/revise design of SWM biofilter. Floor of proposed basin is 20-ft from 21-ft high retaining wall. Final contours (east side of basin) disappear at retaining wall. Relocate biofilter away from retaining wall. Evaluate 100-yr storm water surface elevation relative to retaining wall; design must eliminate influence of subsurface saturation on retaining wall foundation. Provide a 10-ft W(min.) maintenance strip on the west side of biofilter, and revise biofilter side slopes to 3:1 or flatter to minimize risk to residents posed by 2:1 slopes. Show basin dimensions (L x W/floor of biofilter). Response: The retaining walls are being designed by Circeo Geotechnical Engineering, P.C. Mr. Circeo has indicated to me the retaining walls will be designed to accommodate the adjacent conditions. 11. Comment: Furnish SCALE, sheet C-7; correct SCALE, sheet C-8. Response: The scale has been corrected. 12. Comment: Sheet C-10: Channel @Retaining Wall detail— see SCC calculations on Dwg. No. C-17 for channel lining material and Dwg. No. C-15 for channel location. Sheets C-17, C-15 not included. Show channel location. Response: This detail has been removed from the plans. All retaining walls are being designed by others. The plan has been annotated to denote such and that a separate building permit is required. The retaining wall designer will prepare the retaining wall plans to include guardrail. The retaining wall plans will be submitted to the County's Building Review Department for review and approval. Channel information may be found on the E&SC drawings. 13. Comment: Segmental Retaining Wall Notes (1./6.; sheet C-10) are inconsistent with review and approval process. Retaining wall design review and approval required prior to final site plan approval (see#2, below). Response: See Responses to Comments 10 and 12. The detail has been modified accordingly. 14. Comment: Reference to guardrail detail in SRW detail, sheet C-10, is confusing. Please clarify. 3040 Avemore Square Place • Charlottesville,VA 22911 Telephone(434) 984-2700 • Fax(434) 978-1444 Charlottesville •Lynchburg Page 12 of 18 Response: The detail on Drawing C-18 has been revised. 15. Comment: Sheet 15 of 16 Shows building and retaining walls, East Elevation, in profile view. Retaining wall sections appear discontinuous in profile, yet continuous in plan views. Please revise or clarify. Response: Retaining walls have now been coordinated with the building permit plan(see Drawing A2.01). Needed with Final Site Plan(Code Chapter 18 section 32.6.2) 1. Comment: Provide drainage easement from outfall of proposed biofilter to property line, sheet C-7. Response: The easement has been extended to the property line (see Drawing C- 6). 2. Comment: Furnish retaining wall design(checklist available); high walls adjacent or near buildings,parking, and public areas require detailed design and approval prior to final site plan approval. Show safety railing for retaining walls over 4' high. [ACDSM, 8.B.2a./c.; p. 14/15 (pdf): http://www.albemarle.org/department.asp?department=ccd&relpage=4447—checklist available]. With detailed design, furnish structural computations with original seal and signature (walls over 5' high). Include batter in plan views to represent true depth. Confirm adequate space exists between wall and building structure for geogrid, if geogrid used. Response: See responses to previous retaining wall comments. 3. Comment: Drain pipe/inlet information required (checklist available). Pipe slopes at 0.5%min. to 16%max. (per VDOT standards for anchors over 16%). Response: Appropriate utility profiles have been added to Drawing C-25. 4. Comment: Show profile for sanitary sewer clean-out,NE corner of site. Show sanitary line profile between building and existing sanitary sewer. Plans show retaining wall at least 17' high at this location. ["details for bridged utilities"—retaining wall plan checklist] Response: Information as required by ACSA Comment 7 has been added to plan. See previous responses to the retaining wall "design issues". 5. Comment: Confirm that New Entrance Road Pavement Section, sheet C-12, relates to garage entrance drive. Specify how far pavement detail extends toward underground parking garage. 3040 Avemore Square Place • Charlottesville,VA 22911 Telephone(434) 984-2700 • Fax(434) 978-1444 Charlottesville •Lynchburg Page 13 of 18 Now Response: The new entrance road pavement section extends to the trench drain at the garage entrance. The plan, Drawing C-6, has been annotated to indicate such. 6. Comment: Furnish sidewalk TYP detail; garage slab detail; SWM facility access drive detail. Response: The requested details have been added to the plan. The garage slab is an architectural detail per the architectural plans and as such is a part of the building permit process and not the site plan process. 7. Comment: Show 4' wide (min.) sidewalk at SWM access entrance, Int. Rio Rd (2' width shown; sheet C-6). Response: The graphics have been corrected for CG-9B entrance and 5 foot wide concrete sidewalk. 8. Comment: Final site plan approval requires VDOT approval. Response: This is understood. Needed with SWPPP and Pollution Prevention Plan 1. Comment: Please provide a VSMP application, a full copy of the SWPPP documents, and fees. Link to application: http://www.albemarle.org/upload/mages/forms_center/departments/Community Develop ment/forms/Engineering and WPO Forms/WPO VSMP Virginia Stormwater- Management Program Application.pdf Link to WPO (VSMP)Application process: http://www.albemarle.org/upload/mages/forms center/departments/Community_Develop ment/forms/Engineering and WPO Forms/WPO Application Process.pdf Response: A VSMP Phase 1 Ground Land disturbing permit for this project has been issued. The requested information is included with the WPO submission package. Needed with VSMP: SWPPP: Stormwater Management Plan 1. Comment: The plan must demonstrate compliance with quality requirements using the Runoff Reduction Method. Response: Project is grandfathered as VSMP from DEQ acquired prior to July 1, 2014; therefore, IIC technical requirements have been used. The permit package and SWPPP are included with the WPO application package. 3040 Avemore Square Place • Charlottesville,VA 22911 Telephone(434) 984-2700 •Fax(434) 978-1444 Charlottesville ■Lynchburg Page 14 of 18 2. Comment: All BMP's must meet state specifications. Term `biofilter' fits no clear category in DEQ runoff reduction spreadsheet (bioretention/infiltration). Explicit description and design required for proposed biofilter. Adopt runoff reduction BMP descriptions: bioretention#1/#2, infiltration#1/#2, etc. Link to BMP Clearinghouse: http://vwrrc.vt.edu/swc/ Link to post-construction non-proprietary technical specifications (Part IIB /Eff. 7/1/14): http://vwrrc.vt.edu/swc/NonProprietaryBMPs.html Link to post-construction non-proprietary technical specifications (Part IIC/VSWMH): http://www.deq.virginia.gov/Programs/Water/StormwaterMangement/Publications.aspx ; and http://lis.virginia.gov/cgi-bin/legp604.exe?000+reg+9VAC25-870-96 Link to VDEQ Proprietary/Manufactured BMPs: http://vwrrc.vt.edu/swc/ProprietaryBMPs.html Link to VDEQ New or Re-Development spreadsheets: http://www.deq.virginia.gov/Programs/Water/Laws,Regulations,Guidance,Guidance/Stor mwaterMangementGuidanc e.aspx Response: See response to Comment 1. 3. Comment: There is record of this project in VDEQ database: General VPDES permit registrations: VAR10E747-provide copy of General Permit registration and permit correspondence from VDEQ, for this project, ZMA approval, 12-11-13, does not qualify for grandfathering under Section 17-501.C.1. Part II B technical criteria appear to apply. Response: See response to comment 1. 4. Comment: Furnish drain inlet capacity-spread computations, furnish pipe schedule, HGL, velocity, capacity of proposed storm drain system. Response: Requested computations provided on the plans (see Drawing C-14 and Profiles Drawing C-25). Per VDOT criteria, HGL is not required as all storm drain pipe is less than 24-inch diameter, all slopes exceed minimum and all junction losses have been incorporated in the design. Thus, HGL is at or below the crown of the pipe and complies with VDOT criteria. 5. Comment: Furnish treatment and containment(quantity-quality)analysis for proposed SWM biofilter/Filterra units, using Part II-B criteria, or Part II-C criteria as appropriate. (General VPDES permit date of issuance may affect which technical criteria apply—AC Code Section 17—501) Response: Appropriate SWM narratives, notes, details and calculations have been added(see Drawings C-19, C-20 and C-21). 6. Comment: Furnish plan and profile for biofilter. Include floor dimensions (L X W), forebay/main basin. 3040 Avemore Square Place •Charlottesville,VA 22911 Telephone(434) 984-2700 •Fax(434) 978-1444 Charlottesville •Lynchburg Page 15 of 18 Response: Appropriate SWM narratives, notes, details and calculations have been added (see Drawings C-19, C-20 and C-21). 7. Comment: Furnish L-W-D details for riprap culvert outfall protection. Response: Appropriate information has been added to Drawings C-6 and C-17. 8. Comment: Provide SWM narrative and notes. Response: A SWM narrative, notes, calculations and details have been added to Drawings C-19, C-20 and C-21. 9. Comment: Show drainage divides. Response: Drainage divides have been added to Drawing C-13. 10. Comment: Proposed Filterra units must be sized to accept and treat pervious as well as impervious runoff. Filterra at base of parking garage drive, for example,receives runoff from grass slopes and paved areas. Response: The Filterra unit is not required. 11. Comment: Furnish 100% storm inlet capture at base of entrance drive to avoid flooding parking garage. Response: The trench drain at the garage entrance and storm drain structure 6 provide 100% capture. 12. Comment: Provide SCS 24-hr distribution routing circulations for SWM facilities. Response: The SWM Facility has been routed in accord with the IIC Technical requirements. 13. Comment: Label and dimension all drainage structures. Response: Drainage, structures have been appropriately labeled and dimensioned. 14. Comment: Provide end sections on pipe outfalls (ES-1). Response: Outfalls have been equipped with appropriate end treatments. 3040 Avemore Square Place • Charlottesville,VA 22911 Telephone(434) 984-2700 •Fax(434) 978-1444 Charlottesville •Lynchburg Page 16 of 18 r..r ti.rr, Needed with VSMP: SWPPP: Erosion and Sediment Control Plan 1. Comment: Perimeter sediment trapping measures and diversion dikes must be out of the work area, and in places where they can be installed before grading activities commence. Response: A code compliant E&SC plan has been included. 2. Comment: Provide MS-19 (VESCH, Ch. 5, Engineering Calculations; p. V-97+) downstream of proposed bio-filter, pursuant to 9VAC-25-840-40 [link: https://leg l.state.va.us/cgi-bin/legp504.exe?000+reg+9VAC25-840-40]. Response: MS-19 calculations have been added to the plan(see Drawing C-20). 3. Comment: Furnish ESC at locations as needed. Response: A code compliant E&SC plan has been included. 4. Comment: Show limits of disturbance. Response: The limits of disturbance/clearing and grading have been added to the E&SC plan. 5. Comment: Show drainage divides. Response: Drainage divides have been provided. Fire and Rescue—Robbie Gilmer August 7,2014 1. Comment: Fire flow test required before find approval. Response: Fire flow test data has been added to Drawing C-2. 2. Comment: Type of construction is needed before the fire flow requirements can be determined. Response: Type of construction information has been added to Drawing C-2. 3040 Avemore Square Place • Charlottesville,VA 22911 Telephone(434) 984-2700 • Fax(434)978-1444 Charlottesville ■Lynchburg Page 17 of 18 Nirr ••r3 I trust that the above responses and the final site plans properly address the outstanding issues. If there are any questions,please contact me. Sincerely, WW Associates, Inc. VaNtivi6a261 David M. Jensen, P.E. Vice President Manager, Charlottesville Operations cc: William N. Park, Bluestone Land, L.L.C. 3040 Avemore Square Place •Charlottesville,VA 22911 Telephone(434) 984-2700 •Fax(434) 978-1444 Charlottesville ■Lynchburg Page 18 of 18 Irkil ENGINEERS SURVEYORS PLANNERS ASSOCIATES February 27,2015 Christopher P. Perez Senior Planner County of Albemarle Department of Community Development 401 McIntire Road,North Wing Charlottesville, Virginia 22902 Re: The Lofts at Meadowcreek—Final Site Development Plan SDP-2014-67/WPO-2014-87 WWA Project No. 213001.05 Dear Mr. Perez: This letter is to document and respond to Agency review comments contained in your letter dated November 3, 2014 for the above-referenced project. Our responses to Agency comments are as follows: Conditions of Initial Plan Approval (from approval letter dated August 20,2014: 1. Comment: 132.61 A site plan meeting all the requirements of section 32.6 of Chapter 18 of the Code. Final: See Final Plan comments below. Comment still valid. Response: This item is understood. 2. Comment: 3040 Avemore Square Place • Charlottesville,VA 22911 Telephone(434) 984-2700 •Fax(434) 978-1444 Charlottesville ■Lynchburg sir sir, 3. Comment: 4. Comment: 5. Comment: 6. Comment: 7. Comment: 3040 Avemore Square Place • Charlottesville,VA 22911 Telephone (434) 984-2700 • Fax(434) 978-1444 Charlottesville ■Lynchburg Page 2 of 22 Now, — 8. Comment: [ZMA2013-1, Proffer#2] Transit Reservation Area. On the site plan label and depict the small transit shelter associated with the bus stop. Final: Per proffer#2 the design of the bus pull-off and shelter shall be reviewed and approved by Charlottesville Transit Authority (CAT),VDOT, and the Director of Planning. Currently CAT is the only reviewer left to review the design. Planning staff has sent the plans to CAT for review/approval. Pending comments. Response: Per your 11/19/14 electronic communication, you indicated that CAT approval had been issued and would be noted as such in"County View". 9. Comment: 10. Comment: 1ZMA2013-1,Proffer#1] Rio Road Improvements. Prior to final site plan approval the Rio Rd widening/dedication to public use will need to take place on a subdivision plat to be reviewed by the County, approved, and then recorded in the Clerk's Office prior to final site plan approval. The DB page information of this action shall be provided on the final site plan. Final: Comment still relevant. Pending submittal of plat under separate cover. Response: The plat will be submitted under separate cover. 11. Comment: [ZMA2013-1,Proffer#3]Affordable Housing. "Each site plan for land within the property shall note the aggregate number of units designated for Affordable Units" Provide the affordable unit information on the site plan for staff to verify the requirement is met. Final: Comment not adequately addressed. Sheet 2,Affordable Units, provides a note which states: "see proffer 3 above for required number of affordable units." however, proffer 3 states that "each site plan...shall note the aggregate number of units designated for Affordable Units." Thus on this site plan please provide the aggregate number of units designated as Affordable Units. Based on the proffer, the required amount of affordable housing for this use is twenty percent of 65 units,thus 13 affordable units shall be provided. Clearly label this on the plan. Response: The affordable units note on Drawing No. C-2 has been revised to denote 13 affordable units required and 13 affordable units provided. 3040 Avemore Square Place • Charlottesville,VA 22911 Telephone(434) 984-2700 •Fax(434) 978-1444 Charlottesville •Lynchburg Page 3 of 22 12. Comment: 132.5.2(n), 4.12.16(c)(1)] Perpendicular Parking Size. Throughout the plan label the aisle widths, including in the parking areas. Spaces along a 24'aisle shall be 9'wide by 18'long. Final: Comment still relevant. Only a single 24' width label was provided on the plan. Please add a measurement to the parking structure aisles and the parking structure entrance. This will aid the Zoning Inspectors in the field. Response: The garage travelway width and entrance width dimension have been added to Drawing No. C-6. 13. Comment: 14. Comment: 15. Comment: 16. Comment: 17. Comment: 18. Comment: 132.5.2(d),30.7.5] Managed and Preserved Slopes. This parcel no longer contains "critical slopes"; it has a combination of both"managed slopes" and "preserved slopes"based on the approved overlay map. Show both the managed and preserved slopes as represented on the approved map and label them accordingly. 3040 Avemore Square Place • Charlottesville,VA 22911 Telephone(434) 984-2700 • Fax(434)978-1444 Charlottesville ■Lynchburg Page 4 of 22 The proposed disturbance of the preserved slopes is allowed based on the exhibit and special exception approved with ZMA201300001 which requires construction in this area. Additionally, disturbance of managed slopes is now permitted without a waiver as long as certain performance standards are met. Coordinate with engineering to make sure the construction proposed on the managed slopes meets these requirements. Final: Comment still relevant,work with Engineering to remedy this. Response: Per your January 27, 2015 electronic communication, critical/steep slopes have been labeled as managed and preserved slopes. A note has been added to Drawing No. C-5 indicating that the "steep" slopes shown are based on a field run survey and thus supersede those shown on the "approved" County Map. The disturbance of the steep slopes as shown is permitted. Further, the retaining walls are not subject to the height restriction as they are incorporated into the design of the building. 19. Comment: 20. Comment: 21. Comment: 22. Comment: 23. Comment: 14.171 Lighting. Revise to provide the following standard lighting note on the lighting plan: Each outdoor luminaire equipped with a lamp that emits 3,000 or more initial lumens shall be a full cutoff luminaire and shall be arranged or shielded to reflect light away from adjoining residential districts and away from adjacent roads. The spillover of lighting from luminaires onto public roads and property in residential or rural areas zoning districts shall not exceed one-halffoot-candle. Final: Comment not adequately 3040 Avemore Square Place • Charlottesville,VA 22911 Telephone(434) 984-2700 • Fax(434) 978-1444 Charlottesville •Lynchburg Page 5 of 22 r..r addressed. The above required note shall be provided on all site plans that have lighting associated with them. Please include the above note on the site plan. Response: Per your January 27, 2015 electronic communication,the plan"content" has been modified to address the Code References contained in your electronic communication as well as the requested note (see Drawing No. LT-1). 24. Comment: If any off-site easements are required, they must be approved and recorded prior to Site Plan approval. Final: Comment appears to be relevant for water connections to the site. Response: There are no off-site easements required for this plan. 25. Comment: [32.5.2(n) & (p)] The following will be required for final site plan approval: Outdoor lighting information including a photometric plan and location, description, and photograph or diagram of each type of outdoor luminaire [Sec. 32.7.8 & Sec. 4.17] Final: Comment not adequately addressed. - Sheet C-26 provides the required lighting cutsheets for each light type; however, the cutsheets are not clearly labeled as to which fixture corresponds with the table: XA,XB,XC, and XW. - Sheet C-6 depicts the locations of the various types of lights (XA-XW); however sheet C-26 does not provide matching quantities of each light found on sheet C-6. -Also,the details of each light type provided in the cutsheet is not legible. -Also, the table does not provide labels for each column. -Also, clearly provide the lumen levels of each lamp within the table (if the light is over 3,000 lumens, it shall be a full cutoff fixture). -Within the table assure the tilt of the fixture is provided (full cutoff provides for zero tilt). -Also,the lighting plan shall include a photometric plan which measures the light spillover to the residential property lines and the public street (spillover shall not to be over 0.5 half foot candles). -All maintenance factors for the lights shall be 1.0 Response: The plan has been modified accordingly to address the above issues (see Drawing No. LT-1). 3040 Avemore Square Place • Charlottesville,VA 22911 Telephone(434) 984-2700 • Fax(434) 978-1444 Charlottesville ■Lynchburg Page 6 of 22 NEW COMMENTS 26. Comment: [4.12.6] Parking. On sheet C-2, under Parking Required, there appears to be a mathematical error in the amount of required parking spaces. As currently the plan lists 53 + 60 spaces as 93; however, I believe it should be 113. Revise if appropriate. Response: The amount of required parking spaces has been corrected to 113 on Drawing No. C-2. 27. Comment: [4.12.6] Parking. The Building Official has commented on the size of the handicapped barrier free parking space associated with the van-accessible. Currently the plan has a 5' width; I believe he's looking to have this expanded to 8' wide. Please work with him on this item. Response: The space in question has been revised to van accessible geometrics and has been labeled as such. 28. Comment: Prior to final site plan approval the vacation of the property line between TMP 61A-17 and TMP 61A-15 shall take place on a subdivision plat to be reviewed by the County, approved, and then recorded in the Clerk's Office prior to final site plan approval. The DB page information of this action shall be provided on the final site plan. It may be appropriate to combine all platting items on a single plat. Response: The plat will be submitted under separate cover. The plat denotes vacation of all interior lot lines. 29. Comment: [COD Section VIII] The two required benches are depicted in various locations throughout the plan(see sheet C-18 and sheet C-22). Assure that the plan is consistent on the location of the benches. Revise. Response: The plan depicts that the two required benches are to be located at the rear of the building between the retaining wall and building (see Drawing Nos. C-18 and C-22). This location is adjacent to a building entrance at the garage level. The building elevator is located adjacent to this entrance and provides service to the garage level. 30. Comment: [COD Section X,32.7.9.5(d)] The plan attempts to utilize Lagerstroemia Indica"Crape Myrtle"as street trees along Rio Road; however, this is not permitted as these trees are classified as small ornamental trees and do not qualify for use as public street trees, which shall be large deciduous trees (Section 32.7.9.5(d)). The applicant should revise the plan to provide some type of large deciduous tree in this area to act as street trees in order to meet the required street tree landscaping. The 3040 Avemore Square Place • Charlottesville,VA 22911 Telephone (434) 984-2700 • Fax(434) 978-1444 Charlottesville ■Lynchburg Page 7 of 22 Acer Rubrum "Flame Red Maple" is an appropriate tree, as such replace the five Crape Myrtles fronting Rio with an appropriate tree type. Please note, that the Code of Development provides guidelines for plantings on the entrance road, that requirement is met with this same mix; however,to meet the requirements for landscaping on the public street frontage please refer to the comment above. If you have questions please give me a call. Response: The planting plan on Drawing No. C-22 and the landscape schedule and tabulations on Drawing No. C-23, have been revised to reflect the use of"Flame Red Maple" in lieu of the "Crape Myrtle" for street trees along Rio Road. 31. Comment: The plan depicts an indention, which looks like parallel parking spaces adjacent to the two parking spaces at the entrance. Please clarify what this space is for through labels. If they are for parking spaces please provide measurements and labels. Etc Response: The area in question is a pullout to facilitate temporary parking and has been labeled as such and is fully dimensioned. (See Drawing No. C-6.) 32. Comment: To avoid confusion on sheet A2.01, please provide labels to each elevation view. For example it appears the West Elevation is the view from Rio Road. If so, please label it as such. Also, it appears the East Elevation is the rear of the building. If so, please label it as such. Response: The key plan at the lower right hand corner of Sheet A2.01 has been labeled to denote the elevation view as referenced to the plan view. 33. Comment: 14.12.61 Parking. At the rear of the building (East Elevation) is the base of the wall openings tall enough to block vehicle headlamps from shining through? If not, please modifying the openings to prevent headlamps from shining through onto residential lots. Response: This comment will be addressed directly by Owner/Architect. 34. Comment: To avoid confusion on the cover sheet please omit SDP201400048 from the title, and replace it with SDP201400067—Final Site Plan. Response: The identification number on the plan cover sheet has been revised as requested. 35. Comment: On sheet C-1, in the approvals box, please omit the Health Department and ARB signature lines, and please include "E911" signature line. Response: The requested change has been made. 3040 Avemore Square Place • Charlottesville,VA 22911 Telephone(434) 984-2700 • Fax(434) 978-1444 Charlottesville•Lynchburg Page 8 of 22 Engineering Comments—Justin Deel SDP 2014-00067 1. Comment: The VSMP/WPO application will need to be approved before recommending approval of the final site plan to Planning. Please separate the VSMP package (SWM, ESC, storm drainage) from the site plan. This should be a stand-alone submittal for the VSMP program. Response: The plan has been separated in the manner requested(separate site plan package and separate VSMP plan package). 2. Comment: Critical Slopes must be per Albemarle County Code (ACC) 18-30.7. Please make your drawings match the overlay district maps. The walls proposed to fill in the slopes that are marked as managed slopes must follow the design guidelines of ACC 30.7.5, with 6 foot wall maximum. Response: The source of topography is a field run survey listed under the Site Data on the cover sheet. The critical/steep slopes shown on the plan are those slopes 25% or greater as based on the field run survey. (See Note on Drawing C-5.) During our January 15, 2015 meeting, Mr. Max Greene indicated that this met the certification requirements for ACC Section 18-30.7.4.b.1.h. The walls are permitted as they are in compliance with ACC Section 18-30.7.5.a.3. 3. Comment: Slopes steeper than 3:1 must have a low maintenance ground cover (not grass). [ACC 18-30.7] Response: A low maintenance ground cover will be provided for those slopes steeper than 3:1. A note has been added to Drawing No. C-17 and to the Landscape Plan Drawing No. C-22. 4. Comment: Provide sealed retaining wall plans. Response: Sealed retaining wall plans prepared by Circeo Geotech are included. 5. Comment: VDOT approval will be required for improvements along Rio Road. Response: This is understood. 6. Comment: Ensure that bus stop lane is marked off so as to differentiate from the turn lane. Response: The bus stop lane has been marked off and in compliance with VDOT Shelley Plaster comment 18. 3040 Avemore Square Place • Charlottesville,VA 22911 Telephone(434) 984-2700 • Fax(434) 978-1444 Charlottesville ■Lynchburg Page 9 of 22 7. Comment: The travelway into the site does not meet the grade requirements for parking [ACC 18-4.12]. Response: Spot elevations have been added to Drawing No. C-7 and a centerline of travelway has been added to Drawing No. C-7 to demonstrate compliance with ACC 18-4.12.15.c along with a profile on Drawing No. C-8. 8. Comment: Parallel parking needs to be striped. Response: The area in question is a pullout/over to facilitate temporary short term parking for delivery type vehicles. This was determined to be acceptable to Engineering staff during our 1/15/15 meeting. 9. Comment: Handicapped parking spaces in garage should be located on the east side of the parking facility to eliminate the need to cross vehicle access isle [ACC 18-4.12.15.i]. Response: The garage design due to column line spacing does not permit location of the garage handicap spaces as requested. The manner in which the garage handicap spaces have been laid out to include crosswalk is ADA compliant. 10. Comment: Restore east elevation profile view of retaining wall. Response: This comment was withdrawn by you during the 1/15/15 meeting with Engineering staff. 11. Comment: Inlet calculations do not appear to be correct. Please accurately reflect curbs and grades, and ensure 10 year storm gets to the SWM facilities. We can check details with VSMP plans. Response: The area adjacent to structure number 8 has been regraded such that it is in a sump condition. All inlet structures are in a sump condition as reflected in the inlet compuations. The following issues with biofilter design will affect the layout of the site plan: 1. Comment: You cannot have a sanitary sewer/manhole in the biofilter dam. Response: The facility has been relocated/regraded to eliminate this condition. 3040 Avemore Square Place • Charlottesville,VA 22911 Telephone(434) 984-2700 • Fax(434) 978-1444 Charlottesville ■Lynchburg Page 10 of 22 2. Comment: The biofilter does not appear to meet minimum setback for bioretention BMP [VA DEQ Stormwater Design Specification No. 9, Table 9.3]. Response: The biofilter is set no closer than 20 feet down slope of the building (see Volume 1,page 3.11-3.13 of the Virginia Stormwater Management Handbook 1st Edition, 1999). Please be reminded that the project is vested with the Part IIC criteria. 3. Comment: Provide a 4 to 6 foot maintenance access strip to west side of bioretention facility. Response: A maintenance strip has been added along the south side of the SWM facility to the retaining wall. This is as agreed upon with Glenn Brooks during our January 15, 2015 meeting. 4. Comment: The biofilter treatment cannot be part of the sediment forebay. Response: The facility has been modified to comply with this policy. VSMP Permit Plan Review A. SWPPP 1. Comment: Please use the standard template from the county website. Response: This is understood. The SWPPP will be provided under separate cover. 2. Comment: Provide SWPPP documents as a stand-alone package. Do not include them as part of the site plan package, as the zoning site plan approval will not be a valid VSMP approval. Response: The SWPPP documents will be submitted under separate cover. B. PPP 1. Comment: Not found. Response: The Pollution Prevention Plan will be included in the SWPPP documents to be submitted under separate cover. 3040 Avemore Square Place • Charlottesville,VA 22911 Telephone(434) 984-2700 • Fax(434) 978-1444 Charlottesville ■Lynchburg Page 11 of 22 `rr.� ti✓ C. SWMP 1. Comment: The dam cannot have a sanitary sewer line or manhole in it. Response: The facility has been relocated/regraded to eliminate this condition. 2. Comment: Any basin should have 3:1 slopes for maintenance and safety [VSMH Vol. 1, 3.01-13]. Response: The same paragraph referenced further states "if possible, with a maximum combined upstream and downstream slope of 5:1 (3:1 downstream face and 2:1 upstream face)." The grading plan is in compliance with VSMH criteria. 3. Comment: The County BMP spreadsheet is no longer acceptable. Please provide water quality calculations according to the State regulation 9VAC25-870-62 etc., for Part IIC criteria. Response: The BMP Performance Based Water Quality Calculations worksheet as contained in Volume 2, Appendix 5D has been utilized per our January 15, 2015 meeting (see Drawing No. C-20). The calculations have been revised to meet Part IIC criteria. 4. Comment: Provide a drainage area map for each area used in calculations. Response: The drainage area(see Drawing No. C-19)to be utilized for stormwater management pre- and post-development is to encompass the project area consisting of the land mass associated with TMP 61A-15 and 61A-17. This is as agreed upon during our January 22, 2015 meeting. Drainage areas to storm drain inlet type structures are shown on Drawing No. C-16. 5. Comment: Stormwater narrative references July 14, 2014, and should be July 1st Response: The reference has been corrected. 6. Comment: Stormwater narrative references "Level 1"biofilter, which implies Part IIB criteria. See comment 3. Response: The narrative has been revised to denote that the Water Quality facility is a Bioretention Filter designed in accord with Part IIC criteria as contained in Minimum Standards 3.11 and 3.11A as contained in Volume 1 of the Virginia Stormwater Management Handbook 1st Edition, 1999. 3040 Avemore Square Place • Charlottesville,VA 22911 Telephone(434) 984-2700 • Fax(434) 978-1444 Charlottesville •Lynchburg Page 12 of 22 The bioretention filter captures approximately 100% of the "Project Area" impervious surfaces and provides a treatment volume of 0.5 inches of runoff from the post-developed impervious area of 50,772 square feet with a ponded depth of 1 foot and an underdrain. 7. Comment: The area used in required biofilter surface area calculations (49,760 sf) is different than the given impervious area(45,073 sf). Additionally, the total impervious area used in County BMP spreadsheet is 47,650 sf. Response: The post-developed impervious area directed to the BMP facility is 50,772 square feet. The calculations and references in the plan have been revised accordingly to reflect this area. 8. Comment: Appears that more than a biofilter may be required. Response: The bioretention filter design provides the required removal per the Performance Based Water Quality Calculations worksheet. 9. Comment: Pollutant removal calculations reference "Level 1"biofilter. This is new(IIB) criteria language. Please revise computations to follow IIC criteria. Response: The reference to "Level 1"has been removed and the calculations are per the Part IIC criteria. 10. Comment: Bioretention details reference "Level 2" (new criteria language). Please provide Type IIC details. Use basin sizing methodology found in VSMH Vol. 1, 3.11-13. Response: Details provided are Part IIC details per Minimum Standard 3.11 and 3.11A and cross-reference Minimum Standards as contained in Volume 1 of the Virginia Stormwater Management Handbook 1St Edition, 1999. 11. Comment: Your bioretention facility detail calls for a 12-inch minimum ponding depth. The maximum ponding depth is 6 inches for a bioretention basin. (VSMH Vol. 1, 3:11-3) Response: The referenced standard states that when an underdrain system is used(Minimum Standard 3.11A), the overflow(ponded depth) can be as much as 1.0 feet above the mulch layer(see Page 3.11-14 of VSMH Volume 1, 3.11). The design is in compliance with this criteria. 3040 Avemore Square Place • Charlottesville,VA 22911 Telephone(434) 984-2700 • Fax(434) 978-1444 .................................. ............................................................................. ....... Charlottesville■Lynchburg Page 13 of 22 Nave' 12. Comment: Provide actual sections,to scale, for bioretention details, showing both existing and proposed grades. Response: The embankment profile on Drawing No. C-25 has been expanded to include the upstream embankment to the retaining wall. This was as agreed to during our January 22, 2015 meeting. 13. Comment: Predeveloped SWM drainage map extends off property. Pre- and post-developed drainage areas appear an invalid basis for compliance. There does not appear to be a reason for this, and it affects the computations (Tc, CN, etc.) significantly. Please use the point of discharge from the site, which will restrict the drainage areas to the site itself. Response: The drainage area map (Drawing No. C-19)has been revised to encompass the "Project Area" consisting of TMP 61A-15 and 61A-17. This is as agreed upon during our January 22, 2015 meeting. 14. Comment: DD at SW side of property appears to divert to neighboring property. Response: The DD at the SW side of the property has been extended to outfall into the sediment trap. Additional silt fence has been added northeast of the DD to capture disturbed area downstream of the DD (see Drawing No. C-16). This is as agreed upon during our January 22, 2015 meeting. 15. Comment: The hydrograph reports were not reviewed, as it is expected that changes to the slopes, access, retaining walls, and avoiding the sewer location will necessitate redesign. Response: Acknowledged. 16. Comment: Provide sheets which are titled and clearly provide a stormwater management plan. Only computations and maps were found. (These cannot be approved as part of a site plan.) Include soil types. Response: The plan has been separated into a separate site plan package and a separate VSMP plan package (SWM& ESC). Soil types have been added to the Phase I E&SC plan Drawing No. C-16A). 17. Comment: Label contours on drainage plan. Response: Contours have been indexed on Drawing No. C-13. 3040 Avemore Square Place • Charlottesville,VA 22911 Telephone(434) 984-2700 • Fax(434) 978-1444 Charlottesville•Lynchburg Page 14 of 22 Now, swie D. ESCP 1. Comment: Please do not show piping in the sediment trap, unless it is to be a sediment basin. If a stormwater basin is to be used, it should be designed as a sediment basin also, so that the piping in the dam is installed once for both the temporary and the permanent control. Response: The underdrain has been removed. The SWM facility outfall structure 10, 18" diameter HDPE outfall pipe and outfall structure 9 are to be built concurrently with the embankment associated with sediment trap 1. The openings in structure 9 will be blocked during use as a sediment trap; thus,there will be no disturbance of the embankment when converted to the permanent condition. This note has been added to Drawing No. C-16A as agreed upon during our January 22, 2015 meeting. 2. Comment: The first phase of the E&SC plan must not have site improvements which will not be there at start. Show all measures to be installed as a first step in any land disturbance. Response: The Phase I E&SC plan(Drawing No. C-16A) is in compliance with the requested requirements. 3. Comment: See site plan comments regarding critical slopes, walls, slopes, etc. A redesign may be required. Response: The critical/steep slopes shown to be disturbed with construction of the improvements to include retaining walls and retaining wall heights as shown on this plan are in conformance with the Steep Slopes Overlay District Ordinance and as vested with ZMA 2013-00001 (with Proffers). It is understood that Mr. Christopher Perez, Senior Planner, has discussed with you that the improvements as shown and as designed are permitted. 4. Comment: Provide silt fence around the site perimeter. Response: Silt fence has been placed in a manner to conform with the silt fence criteria contained in the Virginia Erosion Control Handbook(i.e., on contour). 5. Comment: The right-of-way diversion must drain to a sediment trapping measure. Response: The right-of-way diversion in front of the trench drain at the garage drain is not required and has been deleted. The trench drain is 3040 Avemore Square Place • Charlottesville,VA 22911 Telephone(434)984-2700 • Fax(434) 978-1444 Charlottesville ■Lynchburg Page 15 of 22 protected with inlet protection. This is as agreed upon during our January 22, 2015 meeting. 6. Comment: Show soil types on plan. Response: The soil types have been added to the E&SC Phase I plan. 7. Comment: Provide stock pile location and staging/parking area. Response: These areas have been added to the Phase I and Phase II E&SC plans. 8. Comment: On north side of site, silt fence should not be shown going downhill. Response: The silt fence at this location has been placed on contour. 9. Comment: Your adequate channel analysis doesn't look complete. Check channel calculations and CN values. Response: As based on our field review of the existing conditions of the natural drainageway, the channel is adequate and remains adequate. A composite factor"n" is not warranted as the drainageway side slopes are homogeneous. 10. Comment: Provide construction entrance detail. Response: The requested detail has been added to Drawing No. C-17. E. Process 1. Comment: Bonding Response: The bond estimate request letter will be submitted under separate cover. 2. Comment: SWM Facilities Maintenance Agreement Response: The executed agreement will be submitted under separate cover. 3. Comment: DEQ Application Fees Response: The DEQ fees have been paid. This project was vested prior to and after July 1, 2014. DEQ registration/coverage letters are attached. 3040 Avemore Square Place • Charlottesville,VA 22911 Telephone(434) 984-2700 ■ Fax(434) 978-1444 Charlottesville ■Lynchburg Page 16 of 22 4. Comment: DEQ Coverage Response: DEQ registration/coverage letters dated June 6, 2014 and September 5, 2014 are attached. Albemarle County Service Authority—Alex Morrison' 1. Comment: PE signature must be original on cover sheet. Response: A"wet seal" with signature and date has been applied to the cover sheet. 2. Comment: Call out water meter as 1.5" (according to fixture counts provided). Response: The water meter has been called out as 1.5". (See Drawing No. C-6.) 3. Comment: Remove the 3"gate valve before the water meter vault and replace with a 6" gate valve before the 6"x 3"reducer. Response: The requested change has been made. (See Drawing No. C-6 for plan view and Drawing No. C-25 for profile view.) 4. Comment: Relocate the water main connection to TMP61A-29. You can also explore a connection to the 10" CI ACSA water main located in Pen Park Lane. A connection to the RWSA water main has been denied. Response: A connection to the RWSA water main is now being permitted(see your 12/9/14 electronic communication). The water line connection as currently shown is acceptable. 5. Comment: Include the following details: • TD-1 • TD-2 • TD-12 Response: The requested details have been added to new Drawing No. C-25A. 6. Comment: Update the water main profile based on the new connection location. Response: See response to item 4. 7. Comment: Be advised that plantings are proposed in the existing ACSA sanitary sewer easement on the NE corner of the property. The ACSA will allow the installation of this landscaping, as shown, with the understanding that the ACSA 3040 Avemore Square Place • Charlottesville,VA 22911 Telephone(434) 984-2700 • Fax(434) 978-1444 Charlottesville •Lynchburg Page 17 of 22 has no financial responsibility to replace the landscaping in the event that the sewer easement must be accessed by ACSA maintenance crews, per the existing deed of easement. No trees or obstructions will be allowed. Response: This is understood by the owner/developer/applicant. 8. Comment: Provide a profile view of the existing sanitary sewer main where grading, a walking path and a storm crossing is proposed. Be advised that any cover exceeding 15' will require complete replacement of the existing PVC sewer main with DIP. Response: The plan has been revised such that there is no grading over the existing sanitary sewer and the path and access road are no longer within the sanitary sewer easement. Electronic Communication dated November 14, 2014 1. Comment: Relocate the water main to TMP 61A-29. A connection to the RWSA water main has been denied. The existing 10" CI line (located in Pen Park Lane) was installed in 1963 and a tap will not be allowed. Response: This comment is no longer applicable. Electronic Communication dated November 14, 2014 1. Comment: RWSA has lifted the restriction for connecting to the existing RWSA water main in Rio Road. I hereby revise my comments to allow connection to the RWSA main. If you so choose to connect to the RWSA main,the ACSA will request an easement to the Catholic School property for a future loop and redundant water feed. Response: The waterline connection as currently shown is acceptable. Per our January 14, 2015 meeting and your subsequent electronic communication of the same date,the requested easement is no longer being required by the ACSA. Building Inspections—Jay Schlothauer 1. Comment: Rearrange the barrier-free parking space that is not within the garage, so that it is van-accessible. Response: The surface handicap parking space (exterior of the building)has been revised to a van accessible space per your request. (See Drawing Nos. C-6, C-7, C-9, C-11, C-13, C-16 and C-22). 3040 Avemore Square Place • Charlottesville,VA 22911 Telephone (434) 984-2700 • Fax(434) 978-1444 Charlottesville •Lynchburg Page 18 of 22 Fire and Rescue—Robert Gilmer 1. Comment: Fire flow test needs to be conducted on the RWSA 16-inch main on Rio Road, not the 12-inch ACSA line on Pen Park Road. Response: There is no hydrant connected to the RWSA 16-inch main in Rio Road within this project. The closet hydrant connected to the RWSA main and to the project site is at Towne Lane. Test data for this hydrant has been added to Drawing No. C-2 to replace the hydrant data that was obtained from the Catholic School. VDOT—Shelly Plaster 1. Comment: Please correct the curb and gutter label at STA 11+50 on Rio Road. Response: The curb and gutter reference has been corrected (see Drawing No. C-6). 2. Comment: The minimum entrance radius is 25', please see appendix F of the Road Design Manual. Response: The radius has been revised to 25 feet (see Drawing Nos. C-6, C-7, C-8A, C-9, C-11, C-13, C-16 and C-22). An exhibit with the entrance radius within VDOT R/W increased to 25' and the handicap ramps pushed up closer to Rio Road. This was as discussed in our meeting. Per your 1/29/15 electronic communication, you indicated to proceed as shown(on the Exhibit). 3. Comment: Please add a note to nose down the curb at STA 07+75 on Rio Road. Response: The CG-6 will transition from 6-inch height at station 7+69.02 to 0- inch height at station 7+63.87 (see Drawing No. C-8A). 4. Comment: Please add a note stating that the relocated utility poles shall be set outside of the clear-zone. Response: Note 12 on Drawing No. C-5 has been expanded to denote the requested requirements. The clear zone has been added to the Rio Road Frontage Improvements cross-sections on Drawing No. C-10. 5. Comment: As mentioned in the initial Site plan comments, additional detail, including spot elevations, need to be provided at the SWM facility entrance. Please clarify the transition from C&G to shoulder/roadside ditch. How will the additional runoff be controlled now that there is concentrated flow coming down the gutter-pan? 3040 Avemore Square Place • Charlottesville,VA 22911 Telephone(434) 984-2700 • Fax(434) 978-1444 Charlottesville ■Lynchburg Page 19 of 22 Response: Spot elevation shave been added to the entrance as requested(see Drawing No. C-7). Nose down transition of new CG-6 has been added (see Drawing No. C-8A). Please note that the drainage area outfalling at the terminous of the improvements adjacent to the westbound lane Rio Road has been significantly reduced as storm drain structure No. 8 intercepts surface runoff. The existing ditch section outfalled as a concentrated flow at the low point of Rio Road (approximately station 12+50). The existing drainage way has been added to Drawing No. C-7 along with a note to regrade within existing right-of-way to ensure positive drainage. 6. Comment: The cross-slope at the main entrance is approx.. 6.3%. This should be within a 2-3%range. Response: The entrance has been adjusted to maintain 2-3% cross slope within Rio Road (see Drawing No. C-7). 7. Comment: Please provide additional spot elevations, along the C&G at the main entrance, to ensure positive flow. Also, please consider a reversed curb on the south-side of the entrance. Response: Additional spot elevations have been added to Drawing No. C-7 to demonstrate drainage across the main entrance as well as along Rio Road frontage. 8. Comment: Why is STM STR#8 called out as a sump on the inlet computations? It does not appear to be a sump condition on the profile. Response: The grading has been revised such that the inlet in question is in a sump condition. 9. Comment: Please provide the Asphalt Pavement Widening detail, WP-2. Response: The requested detail along with Note 2 has been added to Drawing No. C-8A. 10. Comment: The crosswalk located within the ROW should be shifted closer to Rio Road. The stop bar should be a minimum of 4' behind the crosswalk. Response: The crosswalk location has been revised and stop bar relocated as requested(see Drawing Nos. C-6, C-7 and C-9). Per your 1/29/15 electronic communication, you indicated to proceed as shown(see response to comment 2). 3040 Avemore Square Place • Charlottesville,VA 22911 Telephone(434) 984-2700 •Fax(434) 978-1444 Charlottesville ■Lynchburg Page 20 of 22 r ar✓ ...we 11. Comment: The Crosswalk spacing between lines should be not less than 6 feet wide and the CG-12's should be located within the crosswalk markings. Response: Crosswalk spacing between lines has been revised and labeled to be 6 feet between lines and CG-12s with crosswalk markings (see Drawing Nos. C-6, C-7 and C-9). 12. Comment: Stop Bars and arrows should be Type, B Class 1 Thermoplastic. The remaining pavement markings should be Type A (Latex)paint. Response: Pavement marking note number 2 has been revised accordingly (see Drawing No. C-9). 13. Comment: Please remove the proposed stop bar located in the left turn lane on Rio Road, approx.. STA 10+50. Response: The requested stop bar has been removed(see Drawing Nos. C-6, C-7, C-9, C-11, C-13, C-16 and C-22). 14. Comment: Please extend the left turn lane striping, approx.. 10', to the entrance PC. However, ensure that the striping does not interfere with the left turn movements exiting the site. Response: The left turn lane has been extended to the PC of the proposed entrance into the site. The extended left turn marking does not impact/interfere with a WB-40 movement. (See Drawing Nos. C-6, C-7, C-9, C-11, C-13, C-16 and C-22). 15. Comment: The allowable lane closures along Rio Road are restricted to work hours from 8:00 pm thru 6:00 am. Response: Temporary traffic control General Notes number 5 has been revised accordingly(see Drawing No. C-11). 16. Comment: Thank you for providing the MOT Notes,Narrative and Communications Plan. We also request that you schematically show the placement of all traffic control devices rather than referencing a typical traffic control standard. Response: Drawing Nos. C-11A and C-11B have been added to include schematic layout of lane closure and shoulder with minor encroachment temporary traffic controls (TTC). The majority of work in VDOT right-of-way will utilize these TTC standards. 3040 Avemore Square Place • Charlottesville,VA 22911 Telephone(434) 984-2700 • Fax(434) 978-1444 Charlottesville ■Lynchburg Page 21 of 22 17. Comment: Further discussion is required for the ROW dedication to accommodate the bus stop. Response: It is understood from our November 10, 2014 meeting, that right-of- way 1 foot from the "bus stop" improvements as currently shown is acceptable. 18. Comment: The dashed lines in front of the bus stop should be solid rather than dashed. Hopefully this will help guide a driver away from entering the bus stop. Also in the bus lane please include the word marking BUS ONLY. Response: The requested change has been made (see Drawing Nos. C-6, C-7, C-9, C-11, C-13, C-16 and C-22). I trust that the above responses and plan changes properly address the outstanding issues. If there are any questions,please contact this office. Sincerely, WW Associates, Inc. David M. Jensen, P.E. Vice President Manager, Charlottesville Operations cc: William N. Park, Bluestone Land, L.L.C. 3040 Avemore Square Place • Charlottesville,VA 22911 Telephone(434) 984-2700 • Fax(434) 978-1444 Charlottesville •Lynchburg Page 22 of 22 (W A ENGINEERS SURVEYORS PLANNERS ASSOCIATES May 1,2015 Christopher P. Perez Senior Planner County of Albemarle Department of Community Development 401 McIntire Road,North Wing Charlottesville, Virginia 22902 Re: The Lofts at Meadowcreek Final Site Development Plan SDP-2014-67 and VSMP Plan WPO-2014-87 WWA Project No. 213001.05 Dear Mr. Perez: This letter is to document and respond to Agency review comments contained in your letter dated March 24, 2015 for the above-referenced project. The final site plan and comment response letter have been forwarded to ACSA, RWSA and VDOT under separate cover. Our responses to Agency comments are as follows: Conditions of Initial Plan Approval (from approval letter dated August 20,2014): 1. Comment: [32.6] A site plan meeting all the requirements of section 32.6 of Chapter 18 of the Code. Final: See Final Plan comments below. Comment still valid. Response: This is understood. 3040 Avemore Square Place •Charlottesville,VA 22911 Telephone(434) 984-2700 •Fax(434) 978-1444 Charlottesville ■Lynchburg ate/ 3040 Avemore Square Place •Charlottesville,VA 22911 Telephone(434) 984-2700 •Fax(434) 978-1444 Charlottesville ■Lynchburg Page 2 of 19 10. Comment: [ZMA2013-1,Proffer#1] Rio Road Improvements. Prior to final site plan approval the Rio Rd widening/dedication to public use will need to take place on a subdivision plat to be reviewed by the County, approved, and then recorded in the Clerk's Office prior to final site plan approval. The DB page information of this action shall be provided on the final site plan. Rev 2: Comment still relevant. Staff has received. Pending approval/ recordation of plat,the site plan shall be revised to provide the latest deed book and page reference information. Response: This is understood. The plat is being resubmitted concurrently with this plan. 3040 Avemore Square Place • Charlottesville,VA 22911 Telephone(434) 984-2700 •Fax(434) 978-1444 Charlottesville •Lynchburg Page 3 of 19 101101,1 • 18. Comment: [32.5.2(d),30.7.5] Managed and Preserved Slopes. 3040 Avemore Square Place •Charlottesville,VA 22911 Telephone(434)984-2700 •Fax(434)978-1444 Charlottesville •Lynchburg Page 4 of 19 Rev. 2: Comment addressed. Assure that the version of Sheet C-7 staff received via email dated March 4th is provided in the final version of the site plan for approval. Response: The correct version of Sheet C-7 is contained in this plan. 25. Comment: [32.5.2(n) & (p)] The following will be required for final site plan approval: Outdoor lighting information including a photometric plan and location, description, and photograph or diagram of each type of outdoor luminaire [Sec. 32.7.8 & Sec. 4.17] 3040 Avemore Square Place •Charlottesville,VA 22911 Telephone(434) 984-2700 •Fax(434) 978-1444 Charlottesville ■Lynchburg Page 5 of 19 - Sheet C-26 provides the required lighting cutsheets for each light type; however,the cutsheets are not clearly labeled as to which fixture corresponds with the table: XA,XB,XC, and XW. Rev 2: What happened to the 4 different types of lighting previously proposed on the plan, to include wallpacks, it appears they have been omitted. Please confirm that all site lighting is depicted on the lighting plan and photometric plan. All exterior lighting shall be shown and accounted for on the lighting plan and photometric plan. Response: Sheets LT-1 and LT-2 have been provided. The lighting fixtures and type A, XC and XW. The photometrics are provided on Sheet LT-1 along with a luminaire schedule and cutsheets of fixtures type A, XC and XW are on Sheet LT-2. The XA and XB fixtures are no longer being specified. - Sheet C-6 depicts the locations of the various types of lights (XA-XW); however sheet C-26 does not provide matching quantities of each light found on sheet C-6. Rev 2: What happened to the 4 different types of lighting previously proposed on the plan, to include wallpacks, it appears they have been omitted. Please confirm that all site lighting is depicted on the lighting plan and photometric plan. All exterior lighting shall be shown and accounted for on the lighting plan and photometric plan. Response: The luminaire schedule on Sheet LT-1 matches that shown on the photometric plan. The XC fixture is a recessed fixture at the front entrance location, the XW are wallpacks and the A fixture is along the travelway to the garage entrance. -Also, the lighting plan shall include a photometric plan which measures the light spillover to the residential property lines and the public street (spillover shall not to be over 0.5 half foot candles). Rev 2. The photometric plan provided is too small to read and the measurements at the property lines overlap on another causing another obstacle to legibility. Please revise sheet LT-1 so that the photometric plan is large enough to read. Staff suggests making the lighting plan two pages; sheet 1 for the photometric plan, and sheet 2 for the cutsheets and other lighting data. 3040 Avemore Square Place •Charlottesville,VA 22911 Telephone(434) 984-2700 •Fax(434) 978-1444 Charlottesville •Lynchburg Page 6 of 19 Response: The photometric plan Sheet LT-1 demonstrates compliance with spillover requirements. A color copy of Sheet LT-1 is attached and electronic file will be sent to you. 28. Comment: Prior to final site plan approval the vacation of the property line between TMP 61A-17 and TMP 61A-15 shall take place on a subdivision plat to be reviewed by the County, approved, and then recorded in the Clerk's Office prior to final site plan approval. The DB page information of this action shall be provided on the final site plan. It may be appropriate to combine all platting items on a single plat. Rev 2. A plat has been submitted and shall be reviewed/approved/and recorded prior to final site plan approval. Response: This is understood. The plat(SUB 2015-00039) has been resubmitted concurrently with this plan. 3040 Avemore Square Place •Charlottesville,VA 22911 Telephone(434) 984-2700 •Fax(434) 978-1444 Charlottesville •Lynchburg Page 7 of 19 31. Comment: The plan depicts an indention, which looks like parallel parking spaces adjacent to the two parking spaces at the entrance. Please clarify what this space is for through labels. If they are for parking spaces please provide measurements and labels. Etc Rev 2. Section 4.12.16(C)2 requires parallel parking spaces to be a minimum of 9' wide and 20' long. The spaces provided do not meet this requirement. Also the spaces shall be stripped. Revise appropriately. If these spaces are to be used as parking spaces the parking calculations on sheet 2 should be updated to reflect these spaces. Notably planning staff does not believe these spaces should remain as parking spaces as they are an impediment to the 100' sight distance line shown. Either revise to omit them or revise to meet code requirements. Response: Per your 4/14/15 electronic transmission, the "pavement widening area"/ indentation is acceptable to planning and engineering provided that the depth is increased to 7 feet, the area is equipped with a no parking sign with pavement markings, and the verbiage "pull out"removed. The indentation on Sheet 6 of 30 has been revised to reflect these requirements. 33. Comment: [4.12.6] Parking. At the rear of the building (East Elevation) is the base of the wall openings tall enough to block vehicle headlamps from shining through? If not, please modifying the openings to prevent headlamps from shining through onto residential lots. Rev 2: Comment not addressed. The owner has not commented on this aspect of the plan as discussed in the response letter. Response: A note has been added to Sheet 6 of 30 noting that wall/barrier for the last 9 garage parking spaces on the southeast corner of the building is to extend four(4) feet above the garage floor. This is as agreed upon during a phone conversation in mid-March 2015. • 3040 Avemore Square Place •Charlottesville,VA 22911 Telephone(434) 984-2700 •Fax(434) 978-1444 Charlottesville ■Lynchburg Page 8 of 19 36. Comment: [32.5.2(n)] Proposed improvement. On the site plan dimension the height the retaining wall to the far north associated with the sidewalk exiting the garage spaces. All other retaining walls have max heights provided on sheet C-7. Assure that it's provided for this retaining wall too. Response: The maximum height for the retaining wall in question has been added to Sheet C-7 as requested. 37. Comment: The revised site plan was not sent to RWSA for review based on previous correspondence not allowing a connection to RWSA lines. It appears that the applicant has worked out it's water connection issues with RWSA and they are allowing it. Prior to final site plan approval,provide something in writing (email is fine)that signifies RWSA has approved the site plan being reviewed or has no objections. Per a phone call with Victoria Fort I am forwarding them a copy of the plan today (3-24-15). Response: The RWSA comments are being addressed concurrently with this submission. Engineering Comments—Justin Deel(03/19/15) 3. Comment: Slopes steeper than 3:1 must have a low maintenance ground cover (not grass). [ACC 18-30.7] (Rev. 1) Comment partially addressed. This note was not found on your Landscape Plan,please provide. Response: The note to this effect has been transferred to Sheet 26 of 30 as agreed upon during our 4/9/15 meeting. 4. Comment: Provide sealed retaining wall plans. (Rev. 1) Comment partially addressed. Please include retaining wall plans with the SDP. Ensure that retaining wall plans show and reflect redesign of biofilter. Wall plans received with the VSMP show the old biofilter layout. Also, please show safety rails and/or fencing along retaining walls on plans, and provide a typical detail. 3040 Avemore Square Place •Charlottesville,VA 22911 Telephone(434) 984-2700 •Fax(434) 978-1444 Charlottesville ■Lynchburg Page 9 of 19 Response: The requested drawings will be submitted to you under separate cover. 7. Comment: The travelway into the site does not meet the grade requirements for parking [ACC 18-4.12]. (Rev. 1) Comment not addressed. Your profile is of the centerline, however, the grade on the right side goes from 5%to 9% almost immediately. We feel that this is impractical as it will likely not be constructed as planned. Response: The spot elevations along the right side of the travelway through the handicap parking space and access aisle are at a 2% slope. The parking space to the curb return(approximately 5 feet away) is at a 5% slope then down at 8%. These elevations were reviewed with you during our 4/9/15 meeting. The parking/travelway grading is buildable and in conformance with the referenced County Code for parking spaces and access aisles not adjacent to parking spaces. 8. Comment: Parallel parking needs to be striped. (Rev. 1) Comment partially addressed. Please provide no parking signs for this area. Response: The "pavement widening area"/indentation is acceptable to planning and engineering provided that the depth is increased to 7 feet. The area is equipped with a no parking sign with pavement markings and the verbiage "pull out"removed. The indentation area on Sheet 6 of 30 has been revised to reflect these requirements. 11. Comment: Inlet calculations do not appear to be correct. Please accurately reflect curbs and grades, and ensure 10 year storm gets to the SWM facilities. We can check details with VSMP plans. (Rev. 1) Comment partially addressed. Inlet calculations still do not appear to be correct. Please compare your spread results for both 2 and 10 year storms. We cannot see how 8 is in a sump conditions. It appear that the trench drain at the building entrance will collect much of the 3040 Avemore Square Place •Charlottesville,VA 22911 Telephone(434) 984-2700 •Fax(434)978-1444 Charlottesville •Lynchburg Page 10 of 19 drainage presumably intended for structure 6, which is fine,just please provide calculations. Response: The inlet spread computations on Sheet 17 of 30 has been corrected for the design storm and the check storm. Inlet structure 8 is at the low point of the curb line and thus in a sump condition. This was reviewed with you during our 4/9/15 meeting and found to be acceptable. The trench drain only collects wash down water from the garage. Structure 6 is below the elevation of the top of the trench drain, thus structure 6 collects the surface drainage shown on the storm drainage area map (Sheet 16 of 30), is at the low point and is in a sump condition. VSMP PERMIT PLAN REVIEW A. Stormwater Pollution Prevention Plan (SWPPP) 1. Comment: Please use the standard template from the county website. (Rev. 1) Comment not addressed. An updated SWPPP was not included with this resubmission. Response: The SWPPP is being submitted under separate cover. 3040 Avemore Square Place •Charlottesville,VA 22911 Telephone(434) 984-2700 •Fax(434) 978-1444 Charlottesville ■Lynchburg Page 11 of 19 `or' �..s B. Pollution Prevention Plan (PPP) 1. Comment: Not found. (Rev. 1) Comment not addressed. An updated SWPPP containing a PPP was not included with this resubmission. Response: The SWPPP is being submitted under separate cover. C. Stormwater Management Plan (SWMP) 5. Comment: Stormwater narrative references July 14, 2014, and should be July 1st. (Rev. 1) Comment not addressed. Response: The notation has been corrected. 3040 Avemore Square Place •Charlottesville,VA 22911 Telephone(434) 984-2700 •Fax(434) 978-1444 Charlottesville ■Lynchburg Page 12 of 19 11. Comment: Your bioretention facility detail calls for a 12-inch minimum ponding depth. The maximum ponding depth is 6 inches for a bioretention basin. (VSMH Vol. 1, 3:11-3) (Rev. 1) Comment partially addressed. Your response that 3.11A applies in this case is understood. However, your note on the detail still calls for a 12 inch minimum ponding depth. The maximum ponding depth should be 12 inches,per your response and VSMH 3.11-14. Please correct. Response: The notation has been corrected to reflect 12 inch maximum ponded depth. 14. Comment: DD at SW side of property appears to divert to neighboring property. (Rev. 1) Comment not addressed. The diversion dike in question(beginning near the stockpile area) appears unchanged and routes drainage from 61A-14 directly onto 61A-16. Please correct this. (Note: Comments should have appeared in E&SC comments) Response: This DD has been deleted as agreed upon during our 4/9/15 meeting. 16. Comment: Provide sheets which are titled and clearly provide a stormwater management plan. Only computations and maps were found. (These cannot be approved as part of a site plan.) Include soil types. (Rev. 1) Comment partially addressed. Please provide a"Stormwater Management Plan". 3040 Avemore Square Place • Charlottesville,VA 22911 Telephone(434) 984-2700 •Fax(434)978-1444 Charlottesville ■Lynchburg Page 13 of 19 Response: Drawing C-7 has been added to the VSMP plan which constitutes the"Stormwater Management Plan"as agreed upon during our 4/9/15 meeting. 18. Comment: Please see Comment 11 from the Revision 1 site plan review. The trench drain at the garage entrance is not shown on the Storm Drainage Area Map. Please clarify. Response: The trench drain has been added to the plan as requested. D. Erosion and Sediment Control Plan (ESCP) 1. Comment: Please do not show piping in the sediment trap, unless it is to be a sediment basin. If a stormwater basin is to be used, it should be designed as a sediment basin also, so that the piping in the dam is installed once for both the temporary and the permanent control. (Rev. 1) Comment not addressed. The sediment trap needs to be installed first, unless this is to be a sediment basin. Making this a sediment basin could potentially eliminate the need for the DD that diverts drainage onto the neighboring property(SWM Comment 14). If this is to be a sediment trap, please remove riser and pipe from the E&SC plans. Response: The riser and outfall pipe are to be constructed with the sediment trap embankment and will serve as the permanent embankment for the stormwater management facility. The riser orifices will be blocked watertight during use as a sediment trap and has been labeled as such on the Phase 1 and 2 E&SC plan. This is as agreed upon during the 4/9/15 meeting. 3040 Avemore Square Place • Charlottesville,VA 22911 Telephone(434) 984-2700 •Fax(434)978-1444 Charlottesville ■Lynchburg Page 14 of 19 9. Comment: Your adequate channel analysis doesn't look complete. Check channel calculations and CN values. (Rev. 1) Comment not addressed. Our field review indicated a heavily eroded channel downstream of your outfall. Please indicate how you intend to address this issue. Response: The post developed 2 year and 10 year routed discharges are less than the pre-developed discharges; thus, MS-19 has been met as the project is grandfathered with the pre July 1, 2014 criteria. This is as agreed upon during our 4/9/15 meeting. Albemarle County Service Authority—Alex Morrison (03-31-15) C-6 1. Comment: Due to the height of the building a backflow device is required. Add a note beyond the proposed water meter calling out a backflow device. For more information on the required backflow device you can contact Tim Brown at 434- 977-4511 ext. 119. Response: The prescribed note has been added. 2. Comment: Reconfigure the fire hydrant, fire line and domestic service as shown in Exhibit A. Response: The plan and profile have been reconfigured to that shown on your Exhibit A. 3. Comment: Expand the easement on the southern side of the proposed fire hydrant assembly so it extends 10' off all sides of the fire hydrant. Response: The easement has been expanded to meet this criteria. 3040 Avemore Square Place •Charlottesville,VA 22911 Telephone(434) 984-2700 •Fax(434) 978-1444 Charlottesville •Lynchburg Page 15 of 19 4. Comment: THIS COMMENT IS FOR INFORMATIONAL PURPOSES ONLY AND IS NOT A REQUIREMENT BY THE ACSA: The ACSA recommends that you remove the 8"x 6"reducer that is shown on your sanitary sewer lateral and install 8"the entire length. The additional cost of material will be minimal but will reduce the likelihood of a clog and/or backup. Response: The sanitary sewer lateral has been revised to reflect your recommendation. C-25 1. Comment: Update the sewer crossing notes in Storm-1 profile so it requires a minimum of 12" of vertical separation. Response: The facility has been adjusted to provide 1 foot clearance. C-25A 1. Comment: Update the Water-1 profile so it addresses the following comments: • Call-out a 1.5"water meter vault. • Update the pipe sizes and notes based on the comments referencing Exhibit A. • The "existing grade"and "new grade" callouts are not clear. Update the callouts and maintain 3' of cover. Response: The meter size has been revised to 2-inch as the request to upsize the meter in order to eliminate the need for a pump inside the building has been granted by the ACSA. The profile has been revised per Exhibit "A" and the leaders for existing and proposed grade callouts have been revised to correctly denote each. A note has been added to Drawing No. C-6 regarding the upsizing of the meter as contained in your 4/15/15 electronic communication regarding ACSA authorization to upsize the meter. Rivanna Water and Sewer Authority— Victoria Fort[electronic communication dated 04-02-15] Sheet 6 of 16 (C-6): 1. Comment: Re-label the RWSA water main as "Existing RWSA 18" C.I. Water Main." Response: The verbiage has been revised as requested. 2. Comment: The 16"x 8"tapping sleeve and valve shown should be changed to an 18"x 8"tapping sleeve and valve. Include a reference to the water connection notes (see comment#4 below). 3040 Avemore Square Place • Charlottesville,VA 22911 Telephone(434) 984-2700 •Fax(434) 978-1444 Charlottesville ■Lynchburg Page 16 of 19 Response: The verbiage has been revised as requested. 3. Comment: Add the following RWSA General Water and Sewer Notes to the plans: a. RWSA Engineer(Victoria Fort at(434) 977-2970 ext. 205) shall be notified three business days prior to the start of any work affecting the RWSA 18" water main. b. All work is subject to inspection by RWSA staff. No tie-ins to the existing system shall be made without coordination with and the presence of RWSA staff. No work shall be conducted on RWSA facilities on weekends or holidays without special written permission from RWSA. c. No blasting shall be permitted within 100 feet of RWSA facilities without written permission and RWSA approval of the blasting plan. Ground monitoring during blasting and a pre-blast survey may be required. RWSA may also require certification from a licensed professional engineer stating that the proposed blasting will not damage any RWSA facilities. Damage to any utilities due to blasting shall be repaired by the Contractor to the original condition at no additional cost to the Owner. d. New water main installations shall be pressure tested, chlorinated, flushed and have water samples approved prior to making any permanent connection to the public water system. Approved methods of filling and flushing new water mains will be required to prevent any contamination of the public water system. Response: These notes are shown on Drawing C-3 under RWSA General Water and Sewer Notes (Notes 4, 5, 9 and 11). 4. Comment: Add the following RWSA Water Connection Notes to this sheet: Contractor shall coordinate with RWSA and ACSA during construction of the connection to the existing RWSA 18" waterline. Contractor shall use due diligence to protect the RWSA 18"waterline during construction and tapping. Contractor shall verify the horizontal and vertical location, the outside diameter and the pipe material of the 18" waterline prior to ordering the tapping sleeve. RWSA shall be contacted 3 business days in advance of the test pit and shall be present during the test pit. The tapping sleeve shall be approved by RWSA prior to being ordered. The tapping contractor shall be approved by RWSA prior to the tap. 3040 Avemore Square Place •Charlottesville,VA 22911 Telephone(434) 984-2700 •Fax(434) 978-1444 Charlottesville•Lynchburg Page 17 of 19 A minimum of 3 business days' notice shall be given prior to installation of the tapping sleeve. The 18"x 8"tapping sleeve and valve shall be installed plumb. Following the placement of the 18" x 8"tapping sleeve, a concrete pad and thrust block shall be placed under and behind the tapping sleeve. Response: These notes have been added to Drawing C-6. Sheet 30 of 30 (C-25A) 1. Comment: Revise water connection label on profile Water-1 to read"18" x 8" tapping sleeve and valve. Connect to existing RWSA 18"waterline. Contractor to field verify depth." Response: The verbiage has been revised as requested. 2. Comment: Include the following note: "see RWSA Water Connection Notes, sheet C-6". Response: This verbiage has been revised as requested. VDOT—Shelly Plaster(comments dated 3-24-15) 1. Comment: The second paragraph, under the Temporary Traffic Control/ Maintenance of Traffic Plan Narrative, should be corrected to include the restricted work hours for lane closures and the 6th sentence should be removed. Response: This note has been revised as requested. 2. Comment: The Flagger stations, on sheet 14, should be adjusted to the south side of Towne Lane and to the north side of Pen Park Lane. The corresponding controls/signage spacing should be adjusted to accommodate the shift. Response: The Flagger stations have been adjusted at both locations as requested. 3. Comment: Care should be taken when placing the Road Work Ahead signs, on the side streets, to ensure all vehicular traffic is aware of the work zone. Response: This is understood. 3040 Avemore Square Place •Charlottesville,VA 22911 Telephone(434) 984-2700 •Fax(434) 978-1444 Charlottesville ■Lynchburg Page 18 of 19 I trust that the above responses and plan changes properly address the outstanding issues. If there are any questions, please contact this office. Sincerely, WW Associates, Inc. lave/4.24sitiot David M. Jensen, P.E. Vice President Manager, Charlottesville Operations cc: William N. Park, Bluestone Land, L.L.C. 3040 Avemore Square Place •Charlottesville,VA 22911 Telephone(434) 984-2700 •Fax(434) 978-1444 Charlottesville ■Lynchburg Page 19 of 19 Justin Deel From: David Jensen [djensen©wwassociates.net] Sent: Monday, May 18, 2015 3:39 PM To: Justin Deel Subject: RE: Lofts at Meadowcreek Justin, I am staying the course with a trap as the area is still less than 3 acres. I found that you end up with too many holes in the riser for the biorention filter option under IIC criteria. However, since you can longer provide all of the quantity control volume(greater than 12-inches) under type IIB criteria I would probably have gone with a basin for this particular project if under IIB criteria. We are preparing the SWPPP document and anticpate submission by the end of this week.The developer has engaged Mr. Circeo to prepare the final retaining wall plans. David M.Jensen, PE Vice President ENGINHAts Si'MINORS. PLAN ASSOCIATES Direct:434.960.7549 Main:434.984.2700 Fax:434.978.1444 3040 Avemore Square Place Charlottesville,VA 22911 diensen@wwassociates.net www.wwassociates.net www.facebook.com/WWAssociatesInc From: Justin Deel [mailto:jdeel(aalbemarle.orq] Sent: Monday, May 18, 2015 3:19 PM To: djensen@wwassociates.net Subject: RE: Lofts at Meadowcreek David, We generally review the SWPPP/PPP/SWM/E&SC concurrently; realizing that any requested changes will ultimately have to be reflected in the SWPPP document. Ideally,this eliminates having to go back and forth concerning the SWPPP after the technical concerns have been addressed. I am still reviewing but it appears that my prior concerns have been addressed and I haven't immediately noticed any other concerns. I did think that you were leaning toward a sediment basin,as opposed to a sediment trap requiring the riser openings to be sealed.Why is this a better approach here, out of curiosity? Justin From: David Jensen [mailto:djensen(awwassociates.net] Sent: Monday, May 18, 2015 2:46 PM To: Justin Deel Subject: RE: Lofts at Meadowcreek Justin, 1 Ti'ie retaining wall plans are being revhuoid by the retaining wall engineer Mike Circe .ir have asked for these to be completed as soon as possible. As you are aware the SWPPP(which includes the PPP) is required to contain the approved VSMP plans (per the County's SWPPP template). Is the VSMP plan technically approvable? If so, I will proceed with the SWPPP preparation. Please advise. If there are any questions, please contact me. Thanks, David M.Jensen, PE Vice President ENC3INO::XS I'LANNa:Ks ASSOCIATES Direct:434.960.7549 Main:434.984.2700 Fax:434.978.1444 3040 Avemore Square Place Charlottesville,VA 22911 diensen@wwassociates.net www.wwassociates.net www.facebook.com/WWAssociateslnc From: Justin Deel [mailto:jdeelkaalbemarle.orq] Sent: Monday, May 18, 2015 2:18 PM To: djensenCawwassociates.net Subject: Lofts at Meadowcreek Good afternoon, David. I am reviewing your VSMP and Site Plan resubmissions and wanted to touch base with you concerning the SWPPP, PPP,and Retaining wall plans. Your response is that they are "being submitted under separate cover".You said the same concerning the SWPPP and PPP on the second submission. I'm not sure what you mean by under separate cover. I can't approve the VSMP until I've adequately reviewed the SWPPP and PPP,and cannot recommend site plan approval without the retaining wall plans. Thanks, Justin Justin Deel Department of Community Development County of Albemarle,Virginia 434.296.5832 ext. 3565 2 Jonney Otto From: Ben Rullman<brullman@pinnacleconstructionva.com> Sent: Monday, November 09, 2015 12:52 PM To: Jonney Otto Cc: PC- Lofts at Meadowcreek Subject: Soil drop site Jonney, per your request today the soil being excavated at the area of the he silt pond and sediment basin are being taken to Greenstone Material in Ruckersville. Unless the soils are determined to suitable then we would be creating a stockpile on site per the VSMP specs. Sent from my iPad 1 Jonney Otto From: Jonney Otto Sent: Thursday, October 08, 2015 3:38 PM To: 'wam@pinnacleconstructionva.com' Cc: Justin Deel Subject: Lofts at Meadowcreek Good afternoon Mr. McClellon, After meeting with Bobby Vess on site there were some concerns addressed with the installation of the cutoff trench under ST-1/Biofilter dam wall. Bobby mentioned that there will be a soil engineer on site to determine soil quality during placement of the outlet pipe and with the soil engineers approval the dam core will be placed either just under the outlet pipe or throughout the length of the dam wall. The question being whether or not the cutoff trench will follow the entirety of the dam wall. The County will expect the cutoff trench to follow the entire length of dam wall, not just installed under the installed outlet pipe. Any change to the plan will be required to be submitted to the County as a plan amendment and accompanied with a stamped, certified letter from the soil engineering firm performing the oversight for review. If you have any questions please feel free to contact me on my work cell# or you can contact Justin Deel, the reviewing engineer here in Community Development at ext - 3565. Thanks, Jonney Otto Jonney Otto Albemarle County Engineer Inspector II Cell 434.981.5154 1