HomeMy WebLinkAboutWPO201000042 Review Comments Stormwater Management Plan 2010-08-19OF AL
O
,. vIRGI1`IZP
COUNTY OF ALBEMARLE
Department of Community Development
401 McIntire Road, Room 227
Charlottesville, Virginia 22902 -4596
Phone (434) 296 -5832 Fax (434) 972 -4126
Project: Pippin Hill Farm Vineyard - WPO [WP0201000042]
Plan preparer: Scott Collins
[scott @ collins- engineering.com]
Owner /Applicant: Edge Valley Preservation LLC c/o Mike Hahaj
Plan received date: 12 July 2010
Rev. 1: 17 August 2010
Date of comments: 4 August 2010
Rev. 1: 19 August 2010
Reviewer: John P. Diez — Engineering Technician
A. Stormwater Management Plan
1. Please provide a completed copy of the standard stormwater maintenance agreement and fee for
recordation for any stormwater management facilities.
(Rev. 1) Comment has been acknowledged.
2. It appears that runoff will escape via the ditch north of the proposed septic area. Engineering
recommends two options to help capture the runoff from the proposed parking area:
- Provide a ditch extending toward the north and above (or below) the protected tree to help
capture the proposed runoff from the proposed parking area.
(or)
Make the diversion dike west of the parking lot a permanent channel to help direct the
runoff to the biofilter.
(Rev. 1) Comment has been addressed.
3. Please provide a cross slope on the north side of the proposed travelway to assure that the runoff is
captured and directed to the proposed biofilter.
(Rev. 1) Comment has been addressed.
C. Erosion and Sediment Control Plan
4. Please extend diversion dikes east from the south side of the property.
(Rev. 1) Comment has been addressed.
5. Please show all stream buffers.
(Rev. 1) Comment has been addressed.
6. The diameter for the dewatering orifice appears to be too large. Our calculations show that a 6"
orifice is needed. Please provide calculations for the orifice for clarification.
(Rev. 1) Comment has been addressed.
Albemarle County Community Development
Engineering Review Comments
Page 2 of 2
7. There seems to be discrepancies between this plan and the approved E &S plans for the Bundoran
Farm road plans (WP0200600092). The discharge from the Sediment Basin for Pippin Farm does
not coincide with the proposed culvert next to the sediment trap for Country Fair Lane on the
Bundoran Farm plans. Engineering assume that the portion of Country Fair Lane (where the
proposed entrance to Pippin Farm will be) will be completed with the Country Fair Lane culvert in
place. Therefore, these plans should coincide with the Bundoran Farm road plans.
(Rev. 1) Comment has been addressed.
8. The elevations for ST #2 seem to be incorrect. Please revise.
(Rev. 1) Comment has been addressed.
9. The drainage area in the SB calculations do not match the E &S plans. Please revise. The Sediment
Basin, from the calculations, is sized for a 10.45 drainage. If the actual drainage area is 13.9,
please size the basin accordingly.
(Rev. 1) Comment has been addressed.
The Erosion & Sediment Control and Stormwater Management Plans (WP0201000042)
submitted 17 August 2010 have received Engineering Review and meet Albemarle County
minimum checklist items for approval. Please submit 4 paper copies of the Plan to Current
Development Engineering.
The E &SC bond amount is $119,400. The SWM bond amount is $40,700. The forms and
instructions to post the Water Protection Ordinance Bond can be found on the Community
Development Department Web site on www.albemarle.oig.
A completed copy of the Standard Stormwater Maintenance Agreement and fee for recordation for
the stormwater facilities is required prior to final approval. [17-304E] The forms and instructions
can be found on the Community Development Department Web site on www.albemarle.or ,-.
You may contact Ana Kilmer (Albemarle County Department of Community Development) at ext.
3246 forfurther information on bonding procedures and Maintenance Agreements.
Once the E &SC bond and the SWM bond have been posted, you may contact the Department of
Community Development to arrange a pre - construction meeting with a County Erosion &
Sediment Control Inspector. Should the County Inspector find the limits of disturbance increased
or the need for additional control measures required to protect the site, additional fees will be
required.
\\ Cob- dts01 \cityviewlnk\Docs \2010 \WPO \WPO2010000042 - Pippin Hill Farm Vineyard \CDE2_esc_swm_JPD_Pippin Hill
Farm Vineyard.doc