HomeMy WebLinkAboutSUB200500045 Review Comments WPO VSMP 2018-07-03COUNTY OF ALBEMARLE
Department of Community Development
401 McIntire Road, Room 227
Charlottesville, Virginia 22902-4596
Phone (434) 296-5832 Fax (434) 972-4126
VSMP Permit Plan Review
Project title: Birdwood Golf Course
Project file number: WP0201800016
Plan preparer: Timmons Group, John Wilson, P.E., John.Wilson@timmons.com
Owner or rep.: University of Virginia Foundation, Chris Schooley,
cschooley@uvafoundation.com
Plan received date: 05 March 2018
(Revision 1):
(Rev. 2)
Date of comments:
(Revision 1):
(Rev. 2)
Reviewer:
11 May 2018 —Digital
27 June 2018 —Digital
10 April 2018
13 June 2018
3 July 2018
WW Associates, Inc.
J. Anderson, Rev. 2
County Code section 17-410 and Virginia Code §62.1-44.15:34 requires the VSMP authority to act on
any VSMP permit by issuing a project approval or denial. This submission is incomplete and this
project is denied. The rationale is given in the comments below. The VSMP application content
requirements can be found in County Code section 17-401.
A. Stormwater Pollution Prevention Plan (SWPPP)
The SWPPP content requirements can be found in County Code section 17-405. A SWPPP must
contain (1) a PPP, (2) an ESOP, (3) a SWMP, and (4) any TMDL measures necessary.
The SWPPP was not found with this submittal. Design consultant is to provide a SWPPP using the
standard template from the County website.
Revision 1 Response: The SWPPP has been provided with this submission.
Revision 1 Comments:
1. Please add WPO 201800016 to the cover sheet of the SWPPP, plans and stormwater
management calculations. (Rev. 2) Applicant response: WP0201800016 has been added to the
cover sheet of the SWPPP, plans and stormwater management calculations.
2. SWPPP Section 1— Please provide a registration statement that is completed to include the
certification. Please delete instructions for completing the registration statement. (Rev. 2) Not
Addressed; Applicant response: We are awaiting the signed registration from the contractor.
3. SWPPP Section 2 — Please provide a copy of the DEQ coverage letter when obtained. (Rev. 2)
Not Addressed; Applicant response: DEQ coverage letter will be added to the SWPPP when it is
received.
4. SWPPP Section 4 — Please provide an 11"x17" copy of the latest E&SC Plans
5. SWPPP Section 5 — Please provide an 11"x17" copy of the latest SWM Plans.
6. SWPPP Section 7 — Impaired water status cannot be verified as registration statement has not
been completed. (Rev. 2) Not Addressed; Tele-con. 7/3/18: Timmons working to submit revs.
SWPPP as soon as possible.
7. SWPPP Section 8 — Please provide name of qualified person and requested information. (Rev. 2)
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Not Addressed; Applicant response: Awaiting to receive this information from the contractor.
8. SWPPP Section 9 — Please complete and sign the certification. (Rev. 2) Not Addressed; Applicant
response: Awaiting to receive this information from the contractor.
9. SWPPP Section 10 — Per 9VAC25-880-70 Part K, please provide the person with the authority to
sign inspection reports or to modify the stormwater pollution prevention plan. (Rev. 2) Not
Addressed; Applicant response: Awaiting to receive this information from the contractor.
10. Please note that additional comments may be generated based on responses to these comments.
(Rev. 2) Acknowledged.
B. Pollution Prevention Plan (PPP)
The PPP content requirements can be found in County Code section 17-404.
The PPP exhibit will need to be included in the SWPPP. Design consultant is to provide a PPP exhibit
using the standard template from the County website.
Revision 1 Response: The SWPPP has been provided with this submission.
Revision 1 Comments:
SWPPP Section 6 — Per Albemarle County Code 17-404, the location of the PPP
activity/protection is to be graphically/clearly marked on the PPP. (Rev. 2) Not Addressed.
Provide Exhibit showing locations of: solid non -hazardous waste dumpster, on -site fuel storage (if
any), portable sanitary (porta John), concrete washout, chemical /solvent storage that locates Sec. 6
pollution prevention measures.
C. Stormwater Management Plan (SWMP)
VSMP Regulation 9VAC25-870-108 requires the VSMP authority to approve or disapprove a SWMP.
This plan is disapproved, and reasons are provided in comments below. The stormwater management
plan content requirements can be found in County Code section 17-403.
The plan notes that this project constitutes redevelopment (development on prior developed land) of
the 276.8-acre disturbed area, and thus the total phosphorous load is to be reduced to below the pre -
development total phosphorous load by 20%. The plan proposes to utilize Virginia DEQ Stormwater
Design Specification No. 6 Rainwater Harvesting as the means to reduce the total phosphorous load as
required. The plan proposes to use the existing pond #3 as the "storage tank/cistern," approximately
96 acres of golf course -managed turf as the "roof top," and irrigation of approximately 60 acres of golf
course -managed turf over an 8-9 month period (seasonal outdoor use) as the "non -potable water use."
The DEQ specifies use of rooftop runoff, closed tank storage, and where outdoor use is seasonal a
secondary runoff reduction drawdown practice. The intended means and methods do not meet the
DEQ rainwater harvesting system specifications because a golf course is not a "roof top" as intended
by the regulations. Please provide a DEQ-approved methodology to attain the required total
phosphorous reduction.
Revision 1 Response: As discussed after the plan review, the methodology for adhering to
quality requirements has bene revised — rainwater harvesting is no longer proposed (based on
DEQ/County discussions that it would require extensive time, research, and design efforts to
verify compliance).
Quality control is achieved through conservation area (in easements), drainage through the
conservation areas, and purchasing of nutrient credits. The limits of now include proposed areas
of development (approximately 205 acres) — the larger area of 270 acres has previously included
golf course area that will be converted to brush (native grasses, not regularly mowed). Those
areas have been removed from current analysis. (Rev. 2) Addressed. As discussed in meetings,
all areas disturbed are included in the plan, and Site Land Cover Summary table (VRRM.xls v. 3.0).
Revision 1 Comments: We acknowledge that the quality control strategy has changed. See new
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Page 3 of 13
comments at the end of this section.
Please note that "brush" is not an identified land cover per the Virginia Runoff Reduction Method
(VRRM). Please revise the pre- and post -developed SWM drainage area map to reflect "brush" areas
as "forested/open space" and on VRRM spreadsheets.
Revision 1 Response: The information shown on this sheet (C403) is provided for channel and
flood protection computations and is not provided for VRRM calculations. Brush is a land cover
condition associated with NRCS methodology — and is identified in the plan set, reference areas
of native grasses and other vegetated with minimal maintenance (clearing and mowing).
Revision 1 Comments: Comment addressed.
With respect to the pre- and post -developed drainage area map and the land cover summary table on
Sheet No. C403, please revise as follows:
a. Please verify that the impervious surface reported in sub -areas 2D and 2F reflect the surface
of the existing pond located in each sub -area.
b. The existing parking lot area in sub -area 3B scales out at approximately 2 acres. Please adjust
drawings to reflect correct impervious area in this sub -area and adjust VRRM calculations
accordingly.
Revision 1 Response: This information has been revised to only describe areas with modified
land cover conditions within the limits of disturbance. The information submitted previously
was provided to analyze flood and channel protection, which is no longer applicable (refer to
Comment #5).
Revision 1 Comments: Flood and channel protection analyses are still required. See comment 5
below. (Rev. 1) Addressed. 9VAC25-870-66.B.3 and C.1./2. Apply and are addressed via Energy
balance equation (channel protection), and Q2/Qlo analysis (flood protection).
Please provide a calculation indicating the total surface area of existing impervious cart paths, existing
impervious cart paths to be demolished, and new impervious cart paths to be constructed with this
plan.
Revision 1 Response: New or demolished cart path areas have been quantified, as identified on a
new sheet C402. Existing cart paths (or other impervious surfaces) outside the limits of work
are not impacted with the proposed development and not quantified.
Revision 1 Comments: Comment partially addressed. It appears that additional impervious
areas are now identified and shown on the plan, including bathroom buildings and maintenance
building additions. Please identify within each of the 8 drainage areas the new impervious areas,
existing impervious areas and existing impervious to be demolished. These can be added
adjacent to the land summary tables on Sheet No. C404. (Rev. 2) Comment withdrawn.
Outfalls #1, #2, #3, #4, and #5 are concentrated (channel flow) and thus each outfall individually
where it crosses the property is to be analyzed. Please provide complete hydrology and hydraulic
study establishing the pre- and post -developed with onsite and offsite runoff volume/flow to each of
these outfall points to include routing of existing pond. Stage storage calculations of existing ponds
are to be provided as well.
Revision 1 Response: As discussed after plan review, the hydrologic condition of the site is not
significantly modified with the proposed development. A new sheet, C402, has been provided to
depict where the land cover conditions have been modified. In general, the land cover conditions
vary from turf (CN=61) to forest (CN-55), and new brush/meadow areas (CN=48). Proposed
land cover conditions are intended to balance the hydrologic conditions of the site, such that
cleared forest is mitigated with additional brush areas to achieve a CN value for the drainage
Engineering Review Comments
Page 4 of 13
area that is equal to or less than the existing conditions. Refer to sheet C404 for calculations.
Revision 1 Comments: Comment not completely addressed. We generally agree with the concept
verbiage, however appropriate hydrologic/hydraulic calculations demonstrating compliance
with 9VAC 25-870-66 flood protection and channel protection are required. Please provide
energy balance calculations demonstrating channel protection and appropriate calculations
demonstrating flood protection. (Rev. 2) Addressed, see plan sheet C404, plus Timmons email
(7/2/2018 2:19 PM; 7/2/2018 4:34 PM): supportive Energy balance equation calculations for site
drainage areas. Calculations also in RMS documents.
Add disturbed area limits to the pre- and post- developed drainage area maps (Sheet Nos. C401 and
C402).
Revision 1 Response: The limits of work have been added to the requested sheets.
Revision 1 Comments: Please label the "limits of work" and add a symbol to the legend on Sheet
Nos. C401 and C402. (Rev. 2) Addressed.
7. Please provide complete VCD spreadsheet and VRRM spreadsheet. Only parts/portions of these
spreadsheets were provided.
Revision 1 Response: The VCD spreadsheet is no longer applicable, but additional information
on the VRRM spreadsheet has been provided on sheet C407.
Revision 1 Comments: The VCD spreadsheet is no longer applicable.
Please note that additional comments may be generated based on responses to these comments.
Revision 1 Response: Acknowledged
Revision 1 Comments: Additional comments follow.
9. In order for us to verify that there are no C soils within the land cover conversion/transition
please add the soils to Sheet No. C402. (Rev. 2) Addressed.
10. The acreages in the Land Summary Table for Drainage Area A (24.70 ac.) does not match the
BMP Selections Practice 9a and 9b combined acreage (27.42 ac.). Please reconcile on the various
VRRM worksheets. (Rev. 2) Addressed.
11. On Sheet No. C404 complete the Drainage Area 8 pre and post developed table inputs. (Rev. 2)
Addressed.
12. The BMP practice areas are shown on Sheet No. C405. Please indicate the drainage area to each
BMP practice area. Please indicate the area of each BMP practice area. We recommend that
each area/practice be identified with an alpha or numeric identifier. Please add soils mapping to
Sheet No. C405 to facilitate verification. (Rev. 2) Addressed.
13. Please verify the impervious Pre -Redevelopment and Post -Redevelopment Land Cover reported
in Site Summary on Sheet No. C407. The impervious surface is to be located within Drainage
Area A. (Rev. 2) Addressed.
14. In the previous submission the total disturbed acreage was reported as 276.80 acres, while the
total disturbed acreage reported in this submission has been reduced to 161.00 acre. Please
explain the disturbed area reduction of approximately 115.80 acres. Also, we note that the post -
redeveloped impervious area of 5.25 acres reported in the first submission has been reduced to
Engineering Review Comments
Page 5 of 13
3.20 acres in this submission. Please explain the reduction (i.e. what changed). (Rev. 2)
Addressed; Applicant response: The limits of disturbance were revised to eliminate all undisturbed
areas.
15. Please include Soil Compost Amendment (VA DEQ SWMP Design Spec No. 4) Sections 6, 8 and
9 in their entirety on the plan. (Rev. 2) Addressed. As follow-up, Albemarle confirmed with
Timmons via tel. call 7/3 that Timmons evaluation of site soil characteristics will not require soil
amendments in areas designated for conserved open space or vegetated filter strips.
16. Please add the following 2 notes to the Vegetated Filter Strips Notes.
7. Stormwater should not be diverted into filer strip until the turf cover is dense and
well established. (Rev. 2) Addressed. As follow-up, Albemarle discussed /requested that
Timmons show SAF as perimeter protection for conserved open space and vegetated filter
strips, and that silt fence or, preferably, a diversion dike, be shown on C405 to divert and
prevent runoff reaching vegetated filter strips until upslope areas are fully stabilized.
8. Before site work begins vegetated filter strip boundary should be clearly marked.
(Rev. 2) Addressed. As follow-up, SAF requested to be shown on C405 on 7/3/18.
17. Please provide an area calculation for the area disturbed in the existing buffer areas. (Rev. 2)
Addressed.
18. Please note that additional comments may be generated based on responses to these comments.
Revision 1 response: Acknowledged.
D. Erosion and Sediment Control Plan (ESCP)
Virginia Code §62.1-44.15:55 requires the VESCP authority to approve or disapprove an ESCP. This
plan is disapproved; reasons are provided in comments below. The erosion control plan content
requirements can be found in County Code section 17-402.
Existing pre -development and post -development limits and clearing/grading are not graphically
depicted clearly on the drawings. Within the limits of disturbance, please identify graphically where
areas of existing trees are to be demolished and which existing trees are to remain and provide square
footage or acreage for each area.
Revision 1 Response: Refer to sheet C402 for areas where land cover conditions are modified
(cleared forest, conversion of turf to brush, new cart path, demolished cart path, and buffer
mitigation areas).
Revision 1 Comments:
Comment addressed except that symbol for proposed brush in the legend does not match that
shown on the plan. Provide correct legend symbol on the plan. (Rev. 2) Addressed.
2. Please add limits of existing golf course verses limits of new golf course area to the plan.
Revision 1 Response: The existing golf course, conversion areas, and new golf course are shown
through a series of sheets 401-403.
Revision 1 Comments: Comment addressed (See Part D, Item 1).
Some of the text is not legible due to scale. Please increase the font size, type, or scale of the drawing
so that all text and symbology are discernable.
Revision 1 Response: The relevant text has been modified to promote legibility.
Engineering Review Comments
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Revision 1 Comments: Comment addressed.
4. Please provide Albemarle County Engineering General Construction Notes for Erosion and Sediment
Control Plan Notes 1 through 22 on the plan.
Revision 1 Response: These notes have been added to the bottom right of Sheet C500.
Revision 1 Comments: Comment addressed.
5. Please provide wetland delineation mapping. Sheet No. CIO General Notes Note #7 states no known
wetlands or waters of the US exist within the site area while Critical Areas Note #5 states wetlands
onsite. Please reconcile with Note #7.
Revision 1 Response: Note #6 in general notes referenced the wetlands, this note has been
removed.
Revision 1 Comments: Comment not addressed. Sheet No. C101 General Note #6 references no
known wetlands or water of the U.S., while Critical Areas Note #5 states wetlands on site. Again,
please reconcile. (Rev. 2) Addressed. Asfollow-up include SPECIAL CONDITIONS from USACE
permit number NAO-2017-01789 on plans in prominent location, legibly and clearly. These Special
Conditions restrain construction, stipulate mitigation, and require long-term monitoring.
Text. below:
Special Conditions:
As mitigation for the proposed impacts the applicant will grade approximately
0.49 acre of upland adjacent to an emergent wetland found on Hole #16 and
approximately 0.26 acre of upland adjacent to an emergent wetland found on Hole
# 18 and plant both areas with herbaceous hydrophytes. Approximately 0.75 acre
will be planted. Monitoring reports must be submitted before September of each
monitoring year. The report will identify and document visual observation, the
presencelabsence of the dominance of vegetation having an indicator status of
Facultative or wetter vegetation within the planted areas. If a dominance of
Upland species or the presence of invasive species is observed, a corrective
action plan will be initiated. Both areas will be monitored for a maximum of 10
years. Monitoring will commence following construction in year 1 and in
years 2, 3, 5, 7, and 10.
[Source: Letter d. 4/26/18 from Vincent D. Pero, USACE, to Chris Schooley, UVA Foundation]
Further:
Albemarle recommends plans include 13-pg. Nationwide Permit 42 issued by the U.S. Army Corps of
Engineers (USACE) on a separate plan sheet (USACE NWP-42). We further note Planting Plans appear a
necessity (Ref. Special Conditions /Permit NAO-2017-01789). If planting and monitoring plans to meet
USACE requirements are undeveloped or unavailable, or if there are unmet pre -construction requirements
relating to the NWP-42, it appears imperative that Applicant /UVA Foundation avoid impacts to emergent
wetlands found on Hole #16 and emergent wetlands found on Hole #18. In this case, it would be prudent to
develop planting and monitoring plans referenced in USACE correspondence of 4/26/18, in addition to
showing Special Conditions and 13-pg. NWP-42 on the plans. Albemarle recommends prominent Plan
Note/s prohibiting land disturbance in jurisdictional areas shown on Maps attached to USACE Letter d.
12/21/17 from Vincent D. Pero to Chris Schooley, UVA Foundation, until and unless planting and
monitoring plans are reviewed and approved by USACE, but Albemarle is not an agent of USACE.
Nevertheless, we are aware of federal environmental requirements, and that they apply to this project.
6. Sheet No. C 101 Site Survey Information Note #3 references "Survey Limits" shown hereon were
surveyed by Kirk Hughes and Associates. Please add "Survey Limits" to the plan.
Revision 1 Response: Survey limits include the limits of information shown on the existing
Engineering Review Comments
Page 7of13
conditions C201. Note #2 has been added to this sheet to clarify that the limits of survey work
are defined by the survey information shown.
Revision 1 Comments: Comment not addressed. "Survey limits" not labeled or clarified, i.e.
what is shown on Sheet No. C201 is the "survey limits" and whatever is shown outside of this
area is GIS? Please verify. (Rev. 2) Addressed.
We note that existing ponds are to be used as sediment basins. Please provide the following:
a. Please provide a temporary sediment basin design data sheet for each existing pond facility
that is to be used as a temporary sediment basin.
Revision 1 Response: The existing ponds will no longer be used as sediment basins — a
series of turbidity curtains, sediment traps, silt fence, and other measures adjacent to
work areas have been proposed. The ponds are still planned for draining and dredging
(after upstream stabilization).
Revision 1 Comments: Comment no longer pertinent.
b. It is noted that existing ponds #2, #3, and #5 are to be drained and dredged via pumping into
the existing riser structure. The pumped material is to be dewatered prior to release/outfall
into the natural drainage way/receiving channel. Please indicate that a dewatering device is to
be provided to include sizing calculations.
Revision 1 Response: The water will be drainage and pumped, the dredged material will
be managed separately from the pumping operation.
Revision 1 Comments: Comment not addressed. Address comment. (Rev. 2) Not
addressed. Applicant response: "Per conversations with John Anderson the dredging shall be
permitted under a separate set of plans." Asfollow-up: provide details of conversation with
plan reviewer (notes, date -time, etc.) as recollections differ. This is a significant statement,
and contrasts with reviewer recollection that ponds will not be drained. Additional review
comments possible and plan approval delay is likely if ponds are to be drained and dredged.
Please explain the intent/need for "earth baffles" for ponds #2 and #3. Provide detail to
include intended water surface elevation(s).
Revision 1 Response: These have been removed.
Revision 1 Comments: Comment no longer pertinent.
d. Please provide on the plan the total drainage area that is directed to each of the existing ponds
proposed to be utilized as a temporary sediment basin (only the disturbed area to each facility
is identified).
Revision 1 Response: The ponds will no longer be used as temporary sediment basins.
Revision 1 Comments: Comment no longer pertinent.
The Special Use Permit (SUP) is not approved. We can review but not approve the ESCP until the
SUP is approved. Provide a sediment basin worksheet for the proposed sediment basin located in the
SUP area.
Revision 1 Response: Acknowledged — a note is included for the area that relies on the SUP, and
notes that no work can begin in that area until the SUP has been approved. The work in that
area influences the overall drainage conditions and quality analysis and is therefore considered
in plans and calculations.
Engineering Review Comments
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Revision 1 Comments: We could not find the note referenced in the response above. Please
indicate to us where the note is located, i.e. sheet no. (Rev. 2) Not addressed; please indicate
where the note is located, i.e. sheet no. (Rev. 2) Addressed pending plan revision —discussed with
John Wilson /Timmons, on 7/3/18. Notes will be revised to expressly prohibit land disturbance in
areas covered by special use permit, until SP approved. Engineering to review revised plans /.PDF.
Land disturbing activities are proposed in stream buffers and wetlands. An Army Corps of Engineers
permit to disturb wetlands must be obtained prior to erosion and sediment plan approval. Please
provide permit to disturb wetlands. Also, a mitigation plan for disturbing wetlands and stream buffers
must be submitted and approved by Albemarle County prior to erosion and sediment control plan
approval. Not all required buffers are shown. Buffers are required to be shown for existing ponds in
drainage areas 2D and 2F from their pond banks and their outfall streams that are within 100 feet of
the limits of disturbance. Also, existing ponds #2, #3, and #5 from their entire pond banks and their
outfall streams within 100 feet of the limits of disturbance are to be included as well.
Revision 1 Response: As discussed and agreed upon during prior conversations with the County,
the buffer limits have been established and are shown based on County requirements.
Revision 1 Comments: Acknowledged.
10. Provide either an alpha or numeric designation for each sediment trap to facilitate reference.
Revision 1 Response: The sediment traps have been labeled for reference.
Revision 1 Comments: Comment addressed.
11. The temporary sediment traps are shown in a schematic fashion. The traps are to be graded out on the
plan with sediment trap grades tied into adjacent grade.
Revision 1 Response: The sediment traps have been revised to tie to existing grades.
Revision 1 Comments: Comment addressed.
12. The following sediment traps do not provide 67 C.Y. wet storage and 67 C.Y. dry storage:
a. Sheet No. C502 — ST: 1.5 AC. at north-east corner of practice area
b. Sheet No. C502 — ST: 1.5 AC. at south-east side of hole #15 fairway
c. Sheet No. C504 — ST: 1.5 AC. at east side of hole #10 green
Revision 1 Response: The sediment trap sizes have been revised.
Revision 1 Comments: Comment addressed.
13. Please provide calculations to include drainage area, pipe diameter, and outlet protection apron
dimensions for the temporary slope drains (TSD) shown to serve hole #3 (Sheet No. C503), hole #16
(Sheet No. C501), and hole #5 (Sheet No. C504). Extend clean water diversion to the inlet of the
middle TSD serving hole #5.
Revision 1 Response: The slope drain calculations have bene provided on the E&S sheets, and
the clean water diversion has been extended.
Revision 1 Comments: Comment not completely addressed. Please provide pipe diameters and
outlet protection apron dimensions for each TSD. (Rev. 2) Addressed.
14. Please provide inlet protection on TSD adjacent to hole #16 as sediment laden runoff is directed to this
control measure.
Revision 1 Response: Inlet protection has been added to the TSD.
Engineering Review Comments
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Revision 1 Comments: Comment addressed.
15. Super silt fence on the west side of existing pond (#5) and to the east of hole # 17 is proposed to be
installed perpendicular to contour in several locations. Super silt fence is to be installed on contour
and not across contours. Place super silt fence on tangents parallel to contours.
Revision 1 Response: Silt fence has been modified as required.
Revision 1 Comments: Comment partially addressed. Super silt fence between pond (5) and the
green associated with hole #17 is still perpendicular to the contour. Please correct. (Rev. 2)
Addressed.
16. Other locations where silt fence or super silt fence is installed across contour and is to be corrected on
the plans:
a. Sheet No. C502 — west side of 3 tee boxes furthest from hole #9
b.
Sheet No. C502 —
east side of next to last tee box furthest from hole #15
c.
Sheet No. C503 —
south side of green hole #8
d.
Sheet No. C503 —
west side of the two tee boxes directly east of hole #7 green
e.
Sheet No. C503 —
all along south side of hole #7 green, fairway, and tee boxes
f.
Sheet No. C503 —
east side of closest tee box to hole #10
g.
Sheet No. C503 —
north side of next to last furthest tee box from hole # 14
h.
Sheet No. C503 —
east side of tee boxes to hole #4
i.
Sheet No. C504 —
east, south, and west sides of hole # 12 green
j.
Sheet No. C504 —
east side of hole #4 green
Revision 1 Response: Silt
fence has been adjusted as needed.
Revision 1 Comments: Adjust silt fence for locations below where it has not been done:
a.
Not done.
(Rev. 2) Addressed.
b.
Not done.
(Rev. 2) Addressed
c.
Not done.
(Rev. 2) Addressed
d.
Not done.
(Rev. 2) Addressed
e.
Not done.
(Rev. 2) Addressed
f.
Done.
g. Done.
h. Done.
i. Not done. (Rev. 2) Addressed.
j. Done.
17. Silt sock is not a Virginian Erosion and Sediment Control approved device. Please adjust the plan
accordingly to depict approved control measures.
Revision 1 Response: As discussed and agreed upon prior to plan submission, this system is
proposed in lieu of silt fence and to facilitate frequent grading adjustments within the work
areas. For reference, this system is acceptable by VDOT standards.
Revision 1 Comments: The Albemarle County Program Authority will allow the use of silt sock.
Silt sock is to be placed on contour. There are multiple locations where silt sock is placed
perpendicular to contour and is to be corrected.
a. Sheet No. C501 — Fairways holes #16 and #17 (Rev. 2) Addressed.
b. Sheet No. C501 — Short Game/Course practice area southernmost green (Rev. 2)
Addressed.
c. Sheet No. C502 — Silt sock called out but not graphically shown on south side of hole #15
fairway. Graphically show silt sock location on plan. (Rev. 2) Addressed /SS removed.
d. Sheet No. C502 — Short Game/Course practice area, two locations (Rev. 2) Addressed.
Engineering Review Comments
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e. Sheet No. C502/C503 — Between hole #2 green and hole #3 tee boxes (Rev. 2) Addressed.
f. Sheet No. C503 — At 3 locations directly west of hole #3 tee boxes (Rev. 2) Addressed /SS
removed.
18. The sub -area graphic on Sheet No. C505 does not delineate any sub -areas. Delineate desired sub-
areas on sub -area graphic.
Revision 1 Response: As defined in the narrative, the sub -areas will be determined at the time of
construction. The sub -area strategy is intended to allow for work within areas of the site prior to
installation of all E&S controls. Sub -areas are anticipated to be series of golf course holes.
Revision 1 Comments: Comment not addressed. As a minimum show intended phase/sub areas.
Revision 2 Response: Per conversations with John Anderson this sheet has been removed from the
plans. (Rev. 2) Addressed.
19. Please add retaining wall symbol to legend. Please add a note identifying that retaining walls three
feet in height and greater require a separate permit. Please label maximum height of each retaining
wall shown on Sheet Nos. C302, C303, C304, C307, C308, and C309. Retaining wall building
permits are to be obtained prior to approval of this plan. Please provide evidence of permit
acquisition.
Revision 1 Response: Retaining walls have been removed.
Revision 1 Comments: Comment no longer pertinent.
20. Due to plan scale cannot discern separation between the 1-foot contours. Therefore, label all slopes.
Please note that slopes may not exceed 2:1 and slopes greater than 2:1 are to have low maintenance
ground cover. These areas are to be delineated on the plan with some type of symbol and added to the
legend.
Revision 1 Response: As discussed prior to plan submission, the grading shown for the golf
course areas is provided to depict approximate limits of grading with schematic contours
intended for reference. These contours have been removed for clarity.
Revision 1 Comments: Comment not addressed. You were not asked to remove contours and we
understand that grading is schematic. Please address the comment. (Rev. 2) Addressed.
Contours have been added to the plans; ref. Site Layout sheets, C301-C309.
21. All existing and proposed storm sewers to include existing pond risers and outfall structures are to be
added to Sheet Nos. C501 through C504 to include sizes.
Revision 1 Response: There is no proposed modification to existing risers and outfall structures.
Revision 1 Comments: Comment not addressed. Please show existing storm drain/sewer pipes
with the limits of clearing and grading/disturbance/work, if any, as requested. (Rev. 2)
Addressed. Applicant response: None exist within the limits of work.
22. Please add all existing easements (access, drainage, sight, sanitary, etc.) with deed book references,
locations, and dimensions to the plans.
Revision 1 Response: Easements are shown on the plan sheets with DB/PG, as shown in the site
plan sheets C301-311.
Revision 1 Comments: It appears that the only easement within the "limits" is an RWSA
sanitary sewer easement along the east side of the golf course property. Please verify that this is
the only easement within the "limits". (Rev. 2) Addressed. Applicant response: RWSA is the only
Engineering Review Comments
Page 11 of 13
easement within the project limits. (Confirmed via tele-con, 7/3/18 —JA /JW, Timmons).
23. Please show contractor staging and parking areas on the plans.
Revision 1 Response: Contractor areas are proposed within existing parking/maintenance
locations, and have been noted on the plan sheets.
Revision 1 Comments: A single location for a staging, storage and stockpile area is shown on
Sheet No. C502. Your response alludes to multiple locations and plan sheets. Are there
additional areas? Please advise. (Rev. 2) Addressed. Applicant response: There is only one staging
and storage location noted on the plans.
24. Please add inlet protection, culvert inlet protection, and outlet protection to existing structures within
the limits of disturbance.
Revision 1 Response: Existing structures within the limits of disturbance are now shown with
appropriate measures.
Revision 1 Comments: The plan sheets have been reviewed and no existing storm drain
structures were observed within the limits of disturbance. Please instruct us as to the locations
where "shown". (Rev. 2) Addressed. Applicant response: No existing structures exist within the
disturbed area.
25. Site Plan Notes #4 and #5 on Sheet No. C301 identify improvements not shown on the WPO plan. The
location of these items are to be shown on the plan.
Revision 1 Response: These improvements have been added to the plan with notes.
Revision 1 Comments: The locations of the improvements alluded to in your response were not
observed on the 2"d submission documents. Please instruct us as to the locations where "added".
(Rev. 2) Addressed. Applicant response: This information is shown on Sheets C300-311 and C501-
0504.
26. Some of the text in the plan views on Sheet Nos. C301 through C311 is not legible. Please make text
legible.
Revision 1 Response: Text has been modified for legibility.
Revision 1 Comments: Comment addressed.
27. Please provide evidence of VDOT entrance permit for the existing maintenance access road to US
Route 250 where proposed construction entrance is located.
Revision 1 Response: This entrance has been removed from the scope.
Revision 1 Comments: Comment addressed.
28. Please provide dust control symbol in legend and show locations on the E&SC plan sheets.
Revision 1 Response: Dust control measures are described in the E&S narrative.
Revision 1 Comments: Comment not addr ,sed. Please 1vide the requested information.
(Rev. 2) Addressed. Applicant response: DC has been called out on the plans C501-0504.
29. Show stockpile plan location(s) on the E&SC plan sheets.
Revision 1 Response: XX
Revision 1 Comments: XX is not a response. Comment addressed per item 23. (Rev. 2)
Engineering Review Comments
Page 12 of 13
Addressed. See ESC Plan item 23.
30. Please provide temporary seeding and permanent seeding symbol in legend and show locations on the
E&SC plan sheets.
Revision 1 Response: Temporary and permanent seeding is addressed in the E&S narrative.
Revision 1 Comments: Come cnt not addressed. Please provide the requested information.
(Rev. 2) Addressed. See Sheets C501-0504.
31. Indicate existing sidewalk to be demolished on Sheet Nos. C501 through C504.
Revision 1 Response: Sheet C402 shows areas of cart path that will remain, be demolished,
undergo maintenance, and new areas.
Revision 1 Comments: Sheet C402 is a V = 300' scale. Please show requested information on
Sheet Nos. C501 through C504 as requested. (Rev. 2) Addressed. See Sheets C501-0504.
32. Please provide a key map on each erosion and sediment control plan Sheet Nos. C501 through C504.
Revision 1 Response: Match lines are provided on the sheets.
Revision 1 Comments: The Program Authority rescinds the original comment.
33. The existing pond to the west of hole # 16 (see Sheet No. C501) and to the east of the short course area
(see Sheet No. C502) is labeled "Possible Dam Reconstruction and Repair. Clearing Required."
Either include appropriate erosion and sediment controls for the required reconstruction and repair
work or delete from plan.
Revision 1 Response: This note has been removed.
Revision 1 Comments: Comment addressed.
34. New Comment: Sheet C501 tie in sediment basin grades to adjacent grades. (Rev. 2) Addressed.
• Please respond to SWM comment 16; ESC comments 5, 7.b., and 8.
• SWPPP update required.
• Deed of Dedication of Stormwater BMP & Forest and Open Space Easements (SUB201800113, 17.31
Ac.) and SWM Facilities Maintenance Agreement must be recorded prior to VSMP Plan approval.
• PDF preview welcome prior to print submittal for stamped approval.
Engineering plan review staff are available from 2-4 PM on Thursdays, should you require a meeting to discuss
this review.
Process:
After approval, plans need to be bonded. Applicant has requested bond estimates, which are in process.
Timmons has furnished quantities to aid estimates. Albemarle sent Mitigation bond estimate to Timmons,
7/3/2018 11:13 AM. Plan reviewer will prepare estimates and check parcel and easement information based
on the approved plans. The County's Management Analyst will prepare bond agreement forms, which need to
be completed by the owner and submitted along with cash, certificates or sureties for the amounts specified.
The agreements will need to be approved and signed by the County Attorney and County Engineer. This may
take 2-4 weeks to obtain all the correct signatures and forms.
Stormwater Management Facilities Maintenance agreements will also need to be completed and recorded. The
Engineering Review Comments
Page 13 of 13
County's Management Analyst or other staff will prepare the forms and check for ownership and signature
information. The completed forms will need to be submitted along with court recording fees.
After bonding and agreements are complete, county staff will enter project information in a DEQ database for
state application processing. DEQ will review the application information based on local VSMP authority
approval. At this time, the DEQ portion of the application fees will need to be paid directly to the state. For
fastest processing, this is done electronically with the emails provided on the application. DEQ should notify
applicants with instructions on how to pay fees. When DEQ approves the application, they will issue a permit
coverage letter. This should be copied to the county.
After DEQ coverage is issued, via the coverage letter, the County can hold a pre -construction conference.
Applicants will need to complete the request for a pre -construction conference form, and pay the remainder of
the application fee. The form identifies the contractor and responsible land disturber, and the fee remaining to
be paid. This will be checked by county staff, and upon approval, a pre -construction conference will be
scheduled with the County inspector. At the pre -construction conference, should everything proceed
satisfactorily, a joint VSMP and grading permit will be issued by the County so that work may begin.
County forms can be found on the county website forms center under engineering;
hqp://www.albemarle.orWdeptforms.asp?department=cdenMUo
WPO201800016 Birdwood Golf Course 070318rev2.doc