HomeMy WebLinkAboutSP-24-08 - Supplemental - 0870 Williston Road (19)
MEMORANDUM
To: Derick Read, Krebs and Lansing
From: Marla Keene, Development Review Planner
Date: March 22, 2024 Design Team Responses 6/17/2024 P&Z Review 7/22/2024 Design Team Responses 8/16/2024
Re: SP-24-08 870 Williston Road – Doubletree Hotel Addition Review Comments
This memo can be used to provide back-and-forth as the project is reviewed. As of March 22, 2024,
this memo includes comments on the LDR except for the BES Table, 3.18 and 3.19 pertaining to
energy efficiency and solar readiness, and improvements within the Williston Road ROW. Also
forthcoming are comments of the Director of Public Works and City Stormwater Section.
Where information is needed to address multiple standards, it is only mentioned once.
Appendix E (Application Completeness)
The following was sent on 2/20/2024. Only partial responses have been received to date. All
required items must be submitted prior to being eligible to schedule the required neighborhood
meeting.
Application Requirement Project Specific Notes
Boundaries and area of existing subject
property(ies), proposed property lines,
continues properties, boundaries of all zoning
districts, transects, and overlay districts, and
all designations on the City's Official Map, and
lots within the proposed subdivision
numbered.
"Slope rights" callout is unclear. To what is it
pointing?
Applicant Response 6/17: This application
requirement has been addressed.
P&Z Follow-up 7/22: OK
Zoning district boundary not shown.
What is red line on OSP?
Applicant Response 6/17: This application
requirement has been addressed.
P&Z Follow-up 7/22: OK
Lot area in square feet and acres, and lot
coverage calculations including building,
overall, and front yard coverage and the
location and layout of any off-street parking or
Missing existing building area
Missing lot coverage (for stormwater reporting
purposes)
Applicant Response 6/17: The requested lot
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loading areas, traffic circulation areas,
pedestrian walkways, and fire lanes.
and building area calculations are provided on
plan CH101
P&Z Follow-up 7/22: OK
Point-by-point lighting plan and cut sheets for
all proposed outdoor lighting within the site
Omitted
Applicant Response 6/17: The light poles area
shown on the site and landscape plans and a
photometric lighting plan and cut sheets are
included with this submission.
P&Z Follow-up 7/22: See new comments on
13.07 below
The location of any outdoor storage for
equipment and materials if any, and the
location, type and design of all solid waste-
related facilities, including dumpsters and
recycling bins.
Existing or proposed dumpsters not shown
Applicant Response 6/17: The hotel addition
will rely on the existing hotel’s trash
compactor which is located near the northeast
corner of the building, hidden from public
view. The trash compactor is shown on CH100
and CH200.
P&Z Follow-up 7/22: OK
Existing water courses & buffers, wetlands &
buffers, base flood elevations if located in an
area of special flood hazard, wooded areas,
ledge outcrops, and other natural features.
River corridor not shown
Applicant Response 6/17: The River Corridor
has been added to the plan. The only impact is
related to the installation of the new storm
pipe which is located under the existing
pavement.
P&Z Follow-up 7/22: OK but it is not shown on
any but sheet CH100, though the callout is
shown on other sheets. Please add to at
minimum EPSC plans & stormwater plans.
Applicant Response 8/16: The missing River
Corridor line has been added to the
stormwater and EPSC plans.
The existing wet pond at the northeast corner
of the site is being converted to a Gravel
Wetland. The east edge of the pond is located
within the delineated Class II wetland buffer so
we met on site with Tina Heath on June 11th to
review the encroachment. Tina indicated that
the impacts are within the previous stormwater
pond footprint and because we are not
proposing to expand the wetland impacts
beyond the previous footprint, the disturbance
is not jurisdictional.
P&Z Follow-up 7/22: See follow up stormwater
comments under 13.06 below
Applicant Response 8/16: See attached
revisions to the narrative, modeling, plans, and
worksheet that we believe address the
stormwater comments
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Existing and proposed open space Please show specific boundaries and
computations demonstrating requirements are
met.
Applicant Response 6/17: Please see plan
sheet LH-004
P&Z Follow-up 7/22: See follow up comments
on 8.08 below.
Applicant Response 8/16: See response below
Detailed specifications and locations of
planting, landscaping, screening, and/or
buffering materials.
Partial. Narrative indicates more forthcoming
Applicant Response 6/17: Please see the
Landscape Plan, sheet LH-001
P&Z Follow-up 7/22: See follow up comments
under 13.04 below
Applicant Response 8/16: Additional
information provided and described below.
A list of existing vegetation, with the location,
type, and size of existing trees of six inches or
greater in caliper.
Omitted
Applicant Response 6/17: Please see the
Existing Tree Plan, Sheet LH-003
P&Z Follow-up 7/22: See follow up comments
under 13.04I below.
Applicant Response 8/16: Additional
information provided and described below.
Detailed landscaping plan, specification of
materials, costs, and phasing plan, including
vegetation to remain, types of new plant
materials, identified by common name and
botanical name, sizes of all new plant
materials by height and/or diameter at time of
planting and at maturity, quantities of each of
the planting materials, and treatment of the
ground surface (paving, seeding, or
groundcover) for all plantings, screening,
buffering, and stormwater infiltration.
Costs omitted
Applicant Response 6/17: Please see the
attached Landscape Plan, sheet LH-001and
accompanying Landscape Budget document.
P&Z Follow-up 7/22: See comments pertaining
to landscaping budget computations below.
Applicant Response 8/16: The Building Only
project costs are estimated to be $14,896,545
Solar ready roof analysis report Omitted
Applicant Response 6/17: Solar panels are
proposed on the roof of the hotel addition.
P&Z Follow-up 7/22: OK
Plans showing the location, size and invert
elevations of existing and planned sanitary
sewers, storm water drains, and fire hydrants
and location and size of water, gas, electricity
and any other utilities or structures.
It is unclear what the proposed remediation is
for underground utilities that will be disrupted
by proposed project.
Applicant Response 6/17: An existing electrical
transformer located northwest of the proposed
addition will be replaced with a new
transformer. The new transformer will be
placed on the east side of the new addition so
it is more hidden from the public view. There
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is an electrical conduit for site lighting that
passes through the new building footprint. It
will be re-routed and re-fed during
construction. The existing waterline that feeds
the hotel will remain active but a new service
for domestic water and fire protection will be
extended to the hotel addition. A portion of
the existing natural gas service that feeds the
existing hotel will need to be re-routed and
reconnected to allow for the construction of
Gravel Wetland #2.
P&Z Follow-up 7/22: OK
Existing and proposed water and wastewater
usage
Omitted
Applicant Response 6/17: The calculations for
the existing and proposed water and
wastewater usage is included in the attached
Preliminary allocations from the Department of
Public Works and South Burlington Water
Department.
P&Z Follow-up 7/22: OK
Location and design of all utility distribution
facilities
This includes telecommunication cabinets,
additional of which may be needed depending
on rerouting of aforementioned underground
power
Applicant Response 6/17: A new transformer
and a pad for air heat pumps and condensers
will be sited on the east side of the new
addition. The area will be screened with a
metal barrier screen wall as shown on the site
plans and detailed on the landscape details.
P&Z Follow-up 7/22: OK
Article 8: Form Based Code
8.04B(2) Public Facilities on the Official Map: Please provide a draft irrevocable offer for the
planned public street.
Applicant Response 6/17: The driveway is no longer proposed to be a public street.
P&Z Follow-up 7/22: OK
8.04F Alleys: Should there be a raised crosswalk at the west crosswalk?
Applicant Response 6/17: The grading design needs this crosswalk to be flush. We have designed
the crosswalks to be constructed of pavers or concrete so the material change clearly delineates
the crosswalk.
P&Z Follow-up 7/22: OK
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8.05B(3) Parking: While you may keep existing parking, you may not propose new parking within
140-ft of Williston Road or the planned public street. There does not appear to be an exception for
ADA parking in this section.
Applicant Response 6/17: It is our understanding that staff agrees that the parking is considered
existing as long as we are not increasing pavement or number of spaces. The lot will largely be
improved to increase landscaping within and around it. The existing spaces closest to Williston
Road will be removed and replaced with landscaping. The existing 37 spaces will be reduced to 30
and over 1,900 s.f. of impervious will be converted to vegetation.
P&Z Follow-up 7/22: The ADA spaces may remain but the one new space that is not ADA that is to
the front of the proposed building must be removed.
Applicant Response 8/16: The additional, non ADA space, has been removed from the plans. The
updated plans reflect this change.
8.06G Rooftop Elements: How is the view of roof access shaft and mechanical shaft minimized?
Screening, sheathing in consistent architectural materials, other?
Applicant Response 6/17: The mechanical shafts, mechanical equipment, and the elevator overrun
will be clad in, or screened by, metal panels (solid or louvered as appropriate) – color to match the
facade.
The roof access is via exterior wall-mounted ladder from the lower roof. The lower roof is accessed
by a standard door.
P&Z Follow-up 7/22: Please clarify. No revised architectural plans showing this modification have
been provided. The ladder would need to be on a non-street façade (ie the north) and screened
from view of the street.
Applicant Response 8/16: Here is the roof access ladder location in the image below. It's on the
unregulated North façade and is not visible from the street.
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What is height & area of roof access hatch?
Applicant Response 6/17: There is no longer a hatch proposed
P&Z Follow-up 7/22: OK
What is height of elevator shaft?
Applicant Response 6/17: Elevator shaft height is 4 ft above the roof surface.
P&Z Follow-up 7/22: OK
8.06G(4) Utility Features: Electric service is located on interstate façade. Will there be a meter? On
which side is gas service?
Applicant Response 6/17: There will be an electric meter and refrigerant piping on the east side
(interstate façade) of the building. There will not be a gas service to the new building.
P&Z Follow-up 7/22: OK
8.07 Prohibited Materials: You have provided an exterior materials sheet but it does not appear to
address all of the provided materials,
Applicant Response 6/17: The exterior materials sheet is intended to show sample images of the major
facade materials. It is not intended to provide a sample image for every material. For example, a finish
identified on elevation sheet Z21, but not identified on the exterior materials sheet Z26 is the precast
sill, which will be a standard grey/buff precast sill.
P&Z Follow-up 7/22: OK
nor do the plans indicate which exterior materials will be provided where.
Applicant Response 6/17: The South Elevation sheet Z21 contains notes indicating the typical locations
of the materials. The material labels match the materials indicated on the exterior materials sheet Z26.
The other elevation sheets do not contain labels, but the color scheme indicates the corresponding
materials. We are happy to provide clarification if the labeling of the locations of materials is unclear.
P&Z Follow-up 7/22: OK
8.08 Open Space: When the area required for bicycle parking is removed, the parklet does not
meet the minimum area requirements. The pocket park does provide adequate area, however, it is
designed as more of a pocket plaza. Will you accept the revised designation?
Applicant Response 6/17: The Civic Space requirement for the hotel addition is met in the
proposed Pocket Park on the west side of the entrance drive so we removed the open space
designation from the area at the bicycle parking.
P&Z Follow-up 7/22: Please clarify what is meant by the double fence line to the west and the
notation “fence w/ pedestrian gap.”
Applicant Response 8/16: We are proposing the addition of a low but sturdy fence (see LH-002,
Detail #13) within the Doubletree parcel that will delineate the property line and prevent cars from
(inadvertently) driving into the Pocket Plaza from the adjacent property’s gravel parking lot, which
currently abuts the proposed stone dust seating area; however a pedestrian (4’) gap – no gate –
would allow the public to access the Plaza from that parking lot on foot.
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8.11F Open Space for Nonconforming buildings: Please review this section. You must provide a
total area of existing building, and designate the required qualifiable open space. Please also
provide imperviousness of qualifiable open space.
Applicant Response 6/17: The gross square footage of the existing building is 210,000 s.f. The
North Champlain Wing represents 28,230 s.f. of that total, which will reduce the existing building
gross square footage to 181,770 s.f. The gross square footage of the new addition is 47,012 s.f. for
a total of 228,782 s.f. after construction is complete. The 6% Open Space requirement of gross floor
area is calculated to be 13,727 s.f. This is provided in a 13,800 s.f. Pocket Park civic space/site
amenity on the west side of the entrance drive as shown on the Open Space Plan, sheet LH-004.
The impervious cover in the open space is 2,455 s.f. or approximately 18% coverage.
P&Z Follow-up 7/22: OK
Article 14: Site Plan
14.06B Relationship of Proposed Structures to Site: Please provide a statement of how you believe
the proposed structure responds architecturally to the existing structure to which it is adjacent &
connected.
Applicant Response 6/17: The new structure responds to the existing structure in a few ways:
1. The new structure uses similar materials and colors
2. The new structure steps its height down adjacent to the existing building
3. While the new building must address the build-to zone at Williston Rd, it also consistently
extends the approximate building line of the West side of the main hotel building
P&Z Follow-up 7/22: OK
14.06H Utility Service: Comments of the South Burlington Water Department were provided on
February 23, 2024. Most of the comments are boilerplate. Plan specific comments are as follows.
Sheet CH401 Details.
All water related details must conform to the Champlain Water District Specifications and
Detail for the Installation of Water Lines and Appurtenances. This condition will be met and
is noted on the waterline detail sheets.
Sheet CH104- Site Utility Profiles, Water and Sewer.
1. There is an existing abandoned water main on the north side of Williston Road,
parallel with the edge of road, that may be uncapped. This information is provided
to inform the developer/engineer/contractor during any work planned along
Williston Road including where the new pavers are proposed. A note has been
added to plan sheet CH101 addressing this comment.
2. The proposed 10”x8” tapping sleeve shall comply with the CWD Specifications. This
condition will be met.
3. We suggest additional in-line valves be installed on the 10” existing water main to
be able to isolate it in the event of an emergency. The valves could be placed on the
west side at the proposed new tap location for the new addition, and the east side of
the 4” DI water line, thus enabling the isolation of that section of existing water
main between the proposed new building and existing building and still keep water
supply to each building. Three valves at each location are suggested. Please contact
the SBWD if you have any questions. This has been discussed with the South
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Burlington Water Department. A new water valve will be cut-in on the existing line
to allow for isolation of the existing waterline for repairs, while maintaining water to
the buildings. This valve is shown on CH102, east of the bridge connector, but may
be subject to field adjustments.
4. All the proposed work is being connected to existing, aged private water
infrastructure. Condition assessments of the infrastructure where it becomes
exposed should be performed to aid the engineer and owner in determining life
expectancy and conditions prior to project completion. The condition of the existing
waterline will be evaluated during construction.
P&Z Follow-up 7/22: As of today, I have not yet received updated comments from the SBWD. The
SBWD indicated on 7/23 they had no additional comments on the revised plans.
Article 3: General Provisions
3.19 On-Site Solar Photovoltaic Systems: Pursuant to 3.19(B)(4), please show the alternative
system and demonstrate it is adequate to meet the expected building usage.
Applicant Response 6/17: The hotel roof area is approximately 10,500 s.f. after subtracting the
exempt areas. 40% coverage of the roof area is 4,156 s.f. A Roof Solar Sketch is included that
shows the area needed to meet the 40% coverage requirement. Due to vents and mechanical
risers, the panels may have to shift a bit but there is sufficient room to meet this requirement.
P&Z Follow-up 7/22: OK
Article 13: Supplemental Regulations
13.02 Off Street Parking and Loading: The City Fire Marshall provided the following comments.
There is an inconsistency in the submittals regarding the skybridge. Elevations show the
connection at 3rd floor of the new bldg.. while floor plan layout indicates the connection at
the second level.
Please confirm and correct the plans.
Applicant Response 6/17: The drawings are correct: The floor level of the skybridge is at Level 2 of
the new building. The elevation drawings Z22, Z23, and Z24 all show the bridge at Level 2 of the
new building consistent with the floor plans.
Sheet Z110, Z112, and Z120 also depict the skybridge, And these drawings also show the floor
levels of the existing building. The skybridge connects to Level 3 of the existing building. Sheet
Z120 “Section at Skybridge” provides the clearest view of this relationship, including the absolute
elevations of the floor levels of the existing and new buildings. You can see that Level 2 of the
new building and Level 3 of the existing building are at the same absolute elevation of 354’-7
15/16”
P&Z Follow-up 7/22: OK
13.03 Bicycle Parking and Storage: Please provide the total area of existing building and
demonstrate the short term bicycle parking are met for the site as a whole and that the long term
bicycle parking requirements for the area of the addition.
Applicant Response 6/17: The gross square footage of the existing building is 210,000 s.f. The
North Champlain Wing represents 28,230 s.f. of that total, which will reduce the existing building
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gross square footage to 181,770 s.f. The gross square footage of the new addition is 47,012 s.f. for
a total of 228,782 s.f. after construction is complete. At 1 short term space per 5,000 gsf, 23 short
term bike racks for 46 bicycle parking spaces are required. Long-term bike parking is only required
for the 47,012 s.f. of the addition. At 50% of 1 long-term space per 5,000 gsf, 5 long term spaces
are required. These spaces will be provided in three dual bike lockers that are sited adjacent to the
parking lot that is proposed to replace the demolished North Champlain hotel wing.
P&Z Follow-up 7/22: OK. Please update other plans to reflect long-term bike parking as shown on
sheet CH-104. This may be addressed as a condition of approval if desired.
Applicant Response 8/16: The plan revisions for the long-term bike parking are included with this
submittal.
13.04 Landscaping: The City Arborist provided the following comment
Tree Protection measures should be specified and shown on the plans for existing trees
that are being retained. Also, it looks like they may be treating the Ash trees at the
entrance and around the parking lot for Emerald Ash Borer, and it will be necessary to
continue treatments for the life of the trees to provide adequate protection.
Please revise plans to include tree protection for City Arborist review.
Applicant Response 6/17: Please refer to the Existing Tree Plan, sheet LH-005
P&Z Follow-up 7/22: As of today, I have not yet received updated comments from the City arborist.
The City Arborist reviewed the revised plans on 7/23 and indicated there were no concerns.
13.04B(1) Parking Lot Perimeter Landscaping: There is no screening provided where parking abuts
the future public street. Though this parking aisle is not modified, the landscaping is. Can instead
the lilacs be pushed farther from the edge of curb and snow storage be located there?
Applicant Response 6/17: Shrubs have been added to completely screen the parking from both
Williston Road and the driveway.
P&Z Follow-up 7/22: With this application you are proposing to modify parking lot & stormwater
on adjoining site. Site plan application for adjoining site must be submitted.
Applicant Response 8/16: A Site Plan application for the portion of the project located on UVM
property was submitted on 8/8/2024. We are very hopeful that review and approval can be
approved independently of this Form Based Code project.
13.04B(2) Parking Lot Interior Landscaping: Compliance with this criterion will be reviewed when
non-complying parking spaces are removed.
Applicant Response 6/17: We meet the interior island landscape requirement of 10% for both the
reconfigured parking lot and the new parking lot in the footprint of the demolished hotel wing.
P&Z Follow-up 7/22: Please demonstrate compliance with a figure. The 10% must be met either for
the parking area as a whole or for the new area by itself. As an area by itself, the 10% is not
provided. See screen shot.
Applicant Response 8/16: Please see attached diagrams in the pdf exhibit “Parking_Islands
Study_08.15.24”
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13.04B(4)(c) Tree Caliper: “JVE” are proposed to be 6’ – 7’ caliper. Presumably this is an error,
otherwise I’m excited for these trees.
Applicant Response 6/17: This should read “height”
P&Z Follow-up 7/22: OK
13.04B(7) Snow Storage: An additional snow storage for the long east-west driveway should be
provided.
Applicant Response 6/17: An additional snow storage area at the east end of the driveway has
been provided. Refer to plan CH101.
P&Z Follow-up 7/22: OK
13.04D Front Yards of Non-Residential Uses: As in 13.04B(1) above, please provide plantings along
the planned public street in the parking area proposed to be modified.
Applicant Response 6/17: Please see plan sheet LH-001.
P&Z Follow-up 7/22: OK
13.04G(3) Landscaping Budget: There is a note in the application form that the building cost of
$15,000,000 includes site improvements. Please provide a building cost only for the purpose of
required minimum landscape budget calculation.
Applicant Response 6/17: The hard costs for the project, which include sitework, but not
landscaping, is $18,132,200. The landscaping budget requirement is therefore calculated to be
$188,822 based on 3% for the first $250,000, 2% for the second $250,000 and 1% based on the
remaining $17,632,200 of the construction costs. The attached estimated Landscape Budget shows
that the minimum requirement is exceeded ($217,720.00).
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P&Z Follow-up 7/22: Please provide a cost for the BUILDING ONLY, excluding site work. Please
also note that while you must provide a cost for landscaping within parking lots, the value of
required parking lot shade trees must be excluded from computation of the minimum landscaping
budget requirements
Applicant Response 8/16: Please see revised landscape cost estimate, which addresses both issues,
and please see comments below for 13.04.
13.04I Landscaping Maintenance: New Comment 7/22 Please describe how you are proposing to
address the trees that are proposed to be removed. I spoke with Jeff relatively extensively about
this & would like to know their proposal before reviewing in detail.
Applicant Response 8/16: No previously-permitted plant material will be removed as part of this
project in its current form. The only plant material that will be removed either pre-dated recorded
permits or was planted voluntarily by previous management companies in the course of normal
operations, not as part of permitted work.
We have accounted for all plant material that is missing from the original permitted plan (ca. 1989)
and all plant material that has been installed outside of permits that will be retained by this project
and can, we believe, be credited towards it in the diagrams included with this submission (PDFs
‘Previously_Permitted_Planting’ and ‘Additional_Planting_Credits’)
The project is proposing to add $273,709 in landscape value (including special paving and site
furnishings). $156,466 is required according to the City formula (based on building-only cost).
$130,176 would be required to replace all missing plant material shown in the 1989 permit site-
wide. (We do not have any way of knowing when and under what circumstances that planting was
altered, died, etc. – we just tallied up what remains and backed that quantity out of the total 1989
plant schedule value.) We also tallied up the plant material that has been added above and beyond
any permits over time, which we believe totals $26,100, so our total budget owed combining new
work and the replacement of old work would be $286,642, and we are providing $299,809 between
proposed site improvements and credits for additional planting that will remain.
13.05 Stormwater Management
New Comment 7/22: The City Stormwater Section provided updated comments on July 11, as
follows. Please address.
1. Please provide an updated stormwater narrative reflecting the changes made since the pre-
vious iteration of this design.
Applicant Response 8/16: An updated stormwater narrative and associated stormwater
plans are attached.
2. The drainage area plans provided still reflect the old design, which includes the infiltration
chambers for the rooftop runoff and the smaller footprint for gravel wetland 1. The Hydro-
CAD also includes the infiltration chambers for rooftop runoff, which I assume this area will
flow to gravel wetland 1 now that it will be parking and not rooftop.
Applicant Response 8/16: The stormwater plans and HydroCAD model have been updated
to remove the Catamount Woods and garage structure projects. The revised plans and
model are attached.
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3. The provided drainage areas indicate that the new sidewalk to the west of the site is pro-
posed to be captured and conveyed to gravel wetland #1, however, based on the grading
of the site, this impervious will flow toward the treatment practice near the UVM rugby
field. Please revise or provide information on the rugby field treatment practice if this is in-
tended to capture the new sidewalk.
Applicant Response 8/16: The new sidewalk along the west side of the driveway is no longer
included in the project. The updated stormwater plans and narrative clarify the project limits
and stormwater treatment.
4. Contractor should utilize straw wattles for erosion control as opposed to compost filter
socks to prevent leaching of phosphorus into site runoff.
Applicant Response 8/16: The reference to using SiltSoxx compost filled sediment filters
has been replaced with straw wattles. The revised EPSC plans are attached.
13.07 Exterior Lighting
New comment 7/22: The illumination levels from the parking lot fixture nearest the proposed
building to the west are higher than those resulting from adjacent identical fixtures. Please check
calculations. Furthermore, illumination levels must be reduced to 0.3 footcandles maximum at the
property line
Applicant Response 8/16: Photometric plan re-run by Apex Lighting and is correct – see revised
LH-003. Light levels exceed 0.3 footcandles in three locations along the Williston Road portion of
the property line only. The three locations consist of the intersection of the main drive and
Williston Rd., where it seems useful to us to ensure adequate light levels for pedestrians at the bus
stop and parklet; and in front of the two new doors on Williston Rd., to illuminate the new
connecting walkways, which we believe is necessary for street-facing entrances to the building.
Does the standard apply in the case of the streetscape property line as well? If we remove or
relocate the three fixtures in question, Is the public ROW currently lit well for increased pedestrian
activity?