HomeMy WebLinkAboutSP201500001 Review Comments Special Use Permit 2015-03-04Phone 434 - 296 -5832
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County of Albemarle
Department of Community Development
401 McIntire Road,
Charlottesville, VA, 22902
Memorandum
Fax 434 - 972 -4126
To:
Megan Yaniglos
From:
Michelle Roberge, Engineering Department
Division:
Engineering
Date:
March 4, 2015
Subject:
Roslyn Farm
I have reviewed the plan for the applications noted above and offer the following recommendations for the
applicant. The comments are those that have been identified at this time. Additional comments may be added
or eliminated based on further review.
SP201500001 Special Use Permit
1) It appears the existing driveway surface is asphalt. The proposed travelways appear to be a different
surface material. Please clarify if you intend to use a different material.
2) The applicant is proposing more than 4 parking spaces. Per section 4.12.15(a), paved surfaces are
required. A waiver can be submitted to the County Engineer for an alternative road surface.
3) Where is the drain field proposed? Please show outside the stream buffer area.
4) There are perpendicular parking spaces along the travelway. I do not recommend this along the existing
drive with 6% grade. All parking should be 5% in all direction. Please note a VSMP application will be
required at the site plan phase. When sheet flow is not possible, it may be easier to treat runoff if
parking is clustered within a lot.
5) Clarify the travelways and surface material for the horse drawn carriage. There are travelways that
extend to TMP61 -1 D. Is it intended for horses to use the adjacent property?
6) Please note all proposed travelway, including paths for horses, will be included in the limits of
disturbance. Erosion control and stormwater management should be addressed. This can be submitted
at the site plan phase.
7) It appears the rain harvesting system will not meet the quality requirement. Additional stormwater
management may be necessary on site. This can be verified at the site plan phase. Rainwater
harvesting must meet the following design criteria to apply as a valid BMP.
Annual runoff reduction volume credit is only awarded for dedicated year -round
drawdown /demand for the water. Seasonal practices (such as irrigation) may be incorporated
into the site design, but the cistern design must be supplemented by a secondary runoff
reduction drawdown practice with an equal or greater drawdown rate during the non - seasonal
months in order to be credited with an annual runoff reduction volume credit (for stormwater
purposes).
Therefore, the basic cistern design configurations include the following:
1. Year -round indoor use with seasonal indoor and /or outdoor uses;
2. Year -round indoor use with seasonal indoor and /or outdoor uses that are supplemented with
a secondary runoff reduction drawdown practice; and
3. Seasonal indoor and /or outdoor uses that are supplemented with a secondary runoff
reduction drawdown practice.
Also, it is not clear what the daily water demand is for the barn. Applicant noted rain harvesting
system will be used for a maximum of 250 guests, drinking water for an unknown number of horses
and livestock, unknown irrigation size, etc. Please clarify.
The Virginia Cistern Design spreadsheet is primarily intended to provide guidance in sizing cisterns
for purposes of achieving a runoff reduction volume credit for storms less than or equal to a depth of
1 -inch. This credit is then entered into the VRRM compliance spreadsheet for compliance with the
water quality requirements.
8) 1 recommend for the applicant to verify with the Health Dept that catered events above horse stables is
compliant with health codes.
9) There are critical slopes near the proposed main entrance. Please note a critical slopes waiver is
required. I recommend submitting the waiver at this time to verify that the main entrance is a suitable
location.
10) Please clarify the limits of the preservation area and cemetery. Also, provide more info on the
preservation area. Is this existing and platted? It is not clear if the proposed road and parking is within
the preservation area.
11) Please address noise impacts to adjacent properties. No assessments have been submitted.
Please contact Michelle Roberge in the Engineering Department at mroberge(cDalbemarle.org or 434 - 296 -5832
ext. 3458 for further information.