HomeMy WebLinkAboutWPO201800044 Review Comments WPO VSMP 2018-07-19COUNTY 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:
Royal Fern
Project file number:
WP0201800044
Plan preparer:
Shimp Engineering [Justin@shimp-engineering.com]
Owner or rep.:
Gambit LLC & Snow Paws LLC et als
P.O. Box 6846, Charlottesville, VA 22906
Plan received date:
7 Jun 2018
Date of comments:
19 Jul 2018
Reviewers:
John Anderson
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 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 ESCP, (3) a SWMP, and (4) any TMDL measures necessary.
1. SWPPP anticipated with first revision submittal —K. Rucker email 7/18/2018 1:04 PM.
B. Pollution Prevention Plan (PPP)
The PPP content requirements can be found in County Code section 17-404.
1. Anticipate PPP (Sec. 6, County SWPPP template) and SWPPP Exhibit with first revision submittal.
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 the reasons are provided in the comments below. The stormwater
management plan content requirements can be found in County Code section 17-403.
Proposed design, VSMP and Road Plan, must be consistent with approved final site plan for Brookdale, a
development with shared property line immediately west, FSP approved 2/7/18 (SDP201700069).
Brookdale documents are available on County View. There are two primary issues: proposed release point
for (Royal Fern) proposed biofilter is inconsistent with now -approved Brookdale development, with both
approved grading and SWM design. Royal Fern discharge of post -development runoff to Brookdale parcel
must be shown to work with approved Brookdale VSMP (WP0201700081). Second, VDOT /Albemarle
note that the proposed entrance to Royal Fern on Mountainwood Road overlaps an approved entrance to
Brookdale. VDOT and county subdivision and private road standards would not permit this geometry.
Please consult with VDOT on possible approvable locations for subdivision entrance on Mountainwood
Road. With entrance relocation, site land cover values and BMP options (type, size, location) may change.
If revised VSMP design proposes Forest /Open Space Easement, and multiple areas combine to provide a
total post -development land cover forest /open space acreage, label each section of Forest /Open Space
Easement.
Engineering Review Comments
Page 2 of 4
Approved Brookdale FSP, 2/7/18, SDP201700069 —Entrance /Pond Locations (Image):
Royal Fern: Proposed Entrance /BMP Location, WPO201800044 (Excerpt, sheet C3)
I
3.
4.
5.
6.
7.
8.
Lots 8, 9, 10 appear to propose portions of building sites on critical slopes; ref. 18-4.2.1(a). Relocate
building sites off managed steep slopes, as underlying district includes critical slope restrictions.
C2, C4: Label steep slopes.
Provide VSWMH Appendix C (periodic) BMP facility inspection checklist/s on the plans. Engineering has
.PDF files of each Appendix C checklist, and will provide to Applicant on request.
Provide construction steps copied directly from VA Stomrwater Design Specifications, for each proposed
BMP facility.
C3: Title this sheet Site Layout.
C3, BMP outfall: Provide drainage easement that extends to a natural receiving channel. It is insufficient to
locate proposed outfall coincident with a property line without release to a natural or manmade channel.
(14-431.A.1.)
Engineering Review Comments
Page 3 of 4
9. C3: Extend SWM Access easement to a public right-of-way, over and across proposed private streets.
10. C3: Relocate BMP Access Easement so not coincident with ditch 9. BMP access must provide vehicular
access; ditch and access may not occupy the same corridor space. ACDSM, Sec. 5, p. 12:
Best Management Practices for Stormwater Management. All practices must have
adequate vehicle access; 10' width graded at less than 20%. Anything over 20% must be
surfaced with gravel or pavement. Access must be to all structures and forebay cleanout
areas. Easements must be provided over all access and facilities, to accompany deeds and
agreements as available on the county website;
htip://www.albemarle,orp-/deptfonns.asp?dMartment=%cdenMWo
11. Since property to the west has right to develop under FSP SDP201700069, recommend consider working
with adjacent property owner to route Royal Fern runoff to a proposed manmade drainage system; i.e., MH.
12. Design must meet VAC25-840-40.19.(a.-n.) (MS-19)
13. Any Forest/Open Space Easement relied upon for water quality compliance must be recorded with final
subdivision plat as condition of VSMP Approval.
14. C5, Stormwater Management Note 1. is, for the moment, inaccurate. Revise design. Also, item #1, above.
15. Compare C5, SWM Note. 4 (1.23 Ac.) with C3 proposed Forest /Open Space Easement Area (1.25 Ac.);
revise for consistency. This and many comments may be irrelevant with redesign.
16. Ensure BMP Notes with salient details (C5) appear as labels on BMP profile; 7" pond depth, for example.
17. C5 Biofilter Installation Notes: for any proposed BMP, copy installation /construction steps from the
appropriate VA Stormwater Design Specification. List specification installation steps on the plans.
18. Strongly recommend VSMP plan show future developed condition of adjacent TMP # 76-46C1, since this
development is approved (Brookdale).
19. C2, Provide TMPs for adjacent parcels.
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, and the reasons are provided in the comments below. The erosion control plan content
requirements can be found in County Code section 17-402.
These comments may be irrelevant /less relevant with revised design of proposed development access /travelway.
C6
1. Label CE as PCE -Revise Legend to include Paved Construction Entrance.
2. Label Country Green Road.
3. Show Ex. treeline.
4. Label LOD Area =4.30 Ac.
5. Provide additional contour labels.
6. Add SAF to legend (dash -square -dash).
7. Add TP to legend /show tree protection, as/where needed.
C7: (Less relevant, since design may /will change)
8. Provide floor dimensions, proposed biofilter.
9. Provide additional contour labels to aid review.
10. Lots 6, 7, 8, 10 require driveway entrance pipes.
11. Label ditches to receive EC-2 stabilization blanket. Provide ref. to C9 detail.
12. Provide label and dimensions for timber /gravel level spreaders. Provide typ. detail.
13. C8: Check sediment trap 2 table values: A, B, C, H values may require revision.
C9:
14. Dimension BMP outfall riprap (L X W X D).
15. Storm Sewer Profile B 1-B2: 6" roof drain in -show in plan view; or confirm shown on site plan.
16. Storm Sewer Profile C1-C2: Label pipe slope.
17. Storm Sewer Profile C1-C2: Revise rim elevation 48" conc. riser to 460'.
The VSMP permit application and all plans may be resubmitted for approval when all comments have been
Engineering Review Comments
Page 4 of 4
satisfactorily addressed. For re -submittals please provide 2 copies of the complete permit package with a completed
application form.
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 will need to be bonded. The bonding process is begun by submitting a bond estimate request
form and fee to the Department of Community Development. One of the plan reviewers 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 will 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
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.
Stormwater Management Facility, SWM Facility Access, Forest /Open -Space Easements must be recorded with the
final subdivision plat. Subdivision plat will not be approved unless it shows all easements required to approve the
VSMP. This means a Grading Permit may be issued prior to recordation of VSMP-related easements, with final plat.
After bonding and agreements are complete, county staff will need to 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;
http://www.albemarle.org/deptforms.asp?department--cdengmTo
File: WP0201800044 Royal Fern_071918.doc