HomeMy WebLinkAboutWPO200700053 Review Comments WPO VSMP 2018-03-07COUNTY 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:
Ashcroft — Phase III
Project file number:
WP0201000056/WPO200700053 (Amendment)
Plan preparer:
Dominion Engineering [mmyers@dominioneng.com]
Owner or rep.:
Richard L. Beyer [rick@beyerhomes.com]
Plan received date:
Jan 30, 2018
Date of comments:
March 7, 2018
Reviewer:
David James (eat. 3273)
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 application may be resubmitted for approval if all of the items below are satisfactorily
addressed. The VSMP application content requirements can be found in County Code section 17-401.
Amendments (General):
1. The approved plans must be included in the plan set, with the specific areas of
amendment clearly outlined by bubbling or circling. The approved plans must not
otherwise be altered.
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. Registration Statement — Update the R.S. to include (1) a phone# & (7) County of
Albemarle as MS4 operator.
2. Provide an overall map `exhibit sheet' insert of the PPP showing the potential sources of
stormwater pollution generating activities (location & type).
3. Provide any additional locations on PPP & ESC plan for support activities (17-405A(5)a).
B. Pollution Prevention Plan (PPP)
The PPP content requirements can be found in County Code section 17-404.
1. Submit `exhibit sheet' for review.
C. Stormwater Management Plan (SWMP)
VSMP Regulation 9VAC25-870-108 requires the VSMP authority to approve or disapprove a
SWMP. This plan is not approved, and the reasons are provided in the comments below. The
stormwater management plan content requirements can be found in County Code section 17-403.
1. Provide any state permits authorizing disturbance of the streams and wetland areas. Letter
provided on Sheet E2 is a letter of determination, not a permit to impact wetlands or waters
of the State.
2. According to SWM narrative you plan to meet energy balance by using a biofilter, but the
amended plan proposes to remove all biofilters. Please clearify.
Engineering Review Comments
Page 2 of 4
3. It appears that the existing drainage area of 175 ac. to SWM-1 according to the plans is
smaller than what I assessed. Please confirm and correct the DA size accordingly.
4. Show how you determined the phosphorus removal rates (water quality under Part II Q.
5. Remove approval block from cover sheet.
6. Show direction of stormwater flow and approximate slopes after grading operations (17-
405A(5)a).
7. Show SWM Facility & access easement. Show drainage easements & widths.
8. Stormwater maintenance agreement & SWM bond required prior to issuing grading
permit.
9. Provide mitigation plan for WPO buffer disturbance.
10. SWM facility easement plat and deed must be submitted, reviewed, approved and recorded
prior to VSMP plan approval. If these were already recorded, please provide a copy of the
plat and deed.
D. Mitigation Plan (MP)
The mitigation plan requirements can be found in County Code Chapter 17-406.
1. Submit plan & fee for review (17-208).
E. 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 not approved, and the reasons are provided in the comments below. The erosion
control plan content requirements can be found in County Code section 17-402.
Engineering Review Comments
Page 3 of 4
1. Remove approval block from cover sheet.
2. Provide date & source of topographic information: All topography should be at least
visually field verified by the designer within the last year.
3. Show WPO buffer limits; 100' from stream or edge of wetland.
4. Show all steep slopes (typically shaded). Existing critical slopes are not to be disturbed,
unless a waiver or exemption has been granted for the disturbance (18-4.2, 14-304).
5. Show any existing easements with deed book references.
6. Show construction staging, parking area(s).
7. Adjust the LOD to encompass all disturbances, entrances (i.e. Lego Road intersecton - Sta.
10+00 to Sta. 15+00), areas where sediment laden runoff will cross, and any construction
related activities (e.g. Sheet E7 — grading shown outside LOD).
8. Indicate areas already disturbed with constructed fill depth or cut noted. The amended plan
shows that the grading for the road entranceway from intersection of Lego Road to Sta.
15+00 has been completed (paving operations remain).
9. Show CE draining to sediment trap (or ST device location).
10. Show low maintenance (not grass) ground cover area(s) for proposed slopes greater than
3:1. Low maintenance cover is required as a final stabilization measure.
11. Show OP symbol at all ends of pipe outfalls.
12. Please double check the sheet number references match the right sheet and make
corrections.
13. Sheet E4 — Extend OP to an adequate (MS-19)/natural channel (Energy Balance).
14. Sheet E4 — Provide a sediment trap (silt fence inadequate) at low point with diversions going
to it.
15. Sheet E5 — Show diversion (DD) along LOD perimeter near lots 25 and 26.
16. Sheet E7 — Show diversion (DD) along LOD perimeter beside Elmcroft Circle.
17. Add ST-12 (missing) design to table of detail.
18. Re -compute earthwork cut/fill volumes shown on sheet E12 to incorporate any changes to
grading (this will be a road plan comment also).
19. ESC bond required prior to issuing grading permit.
The VSMP permit application and all plans may be resubmitted for approval when all comments have
been 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
Engineering Review Comments
Page 4 of 4
signature information. The completed forms will need to be submitted along with court recording fees
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--cdengno
File: WPO201000056 (amendment) Ashcroft - Phase III - 3-2018 - Rev(1).docx