HomeMy WebLinkAboutWPO202000026 Correspondence 2020-06-23W1 ROUDABUSH, GALE & ASSOCIATES, INC.,,
ENGINEERS, SURVEYORS AND LAND PLANNERS
Date: Thursday, June 18, 2020
To: John Anderson
From: Roudabush. Gale & Associates, Logan O'Day, EIT
RE: WPO-2020-00026—Yancey Farm Pad Rev. 2 Comment Response Letter
Dear Mr. Anderson,
We have received your comments dated 05/18/2020 and have provided the following responses.
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. Provide SWPPP, given potential for erosion. Use Albemarle county SWPPP template. Link:
http://www.albemarle.org/upload/images/forms center/departments/Community Development/forms/Engineer
ing and
WPO Forms/Stormwater Pollution Prevention Plan SWPPP template.pdf
2. (Rev. 1) As follow-up:
a. Revise title to include reference to WP0202000026.
Response: The SWPPP and PPP Titles have been updated to include WP0202000026 reference.
b. Complete VPDES CGP Registration Statement, link to form:
http://www.albemarle.org/upload/images/forms center/departments/Community Develop
ment/forms/Engine
ering and WPO Forms/CGP Registration Statement 2019 FINAL 201904.pdf
Response: CGP Registration form has been completed and included with this submission.
c. Registration Form: Indicate land disturbance has commenced, if it has. Item Section V.C.
Response: Section V.C. has been completed to show that land disturbance has commenced.
d. Sec. 3, SWPPP, Nature of Activity: Item 2.a. makes reference to 'active trenching
operations.' VESCP plan does not indicate trenching. Please revise SWPPP or plan for
consistency
Response: This note has been revised to state that silt fence must be installed downhill of all grading
operations.
e. Sec. 4, Erosion and Sediment Control Plan: Include revised VESCP plan, once
comments addressed.
914 Monticello Road, Charlottesville, VA 22902 172 South Pantops Drive, Charlottesville, VA 22901
Yancey Farm Pad 2 - VESCP Comment Response Letter Page 2 of 3
Response: The revised VESCP plan has been included as an 11x17 with this submission.
f. Sec. 6, Pollution Prevention Plan: Recommend provide 11" x 17" exhibit v. full-size PPP plan.
Response: The pollution prevention plan is included in this submission as an 11x17 with the SWPPP Plan instead of
a full-sized plan.
g. Sec. 7, Discharges to Impaired Waters: please complete. DEQ reference links:
Note: Dollins Creek is tributary to Stockton Creek, which needs a clean-up plan (p. 25 /DEQ
report)
i. Water quality assessment integrated report,
https://www.deg.virginia.gov/programs/Water/WaterQualitvinformationTMDLs/WaterQ
ualit yAssessments/2018305(b)303(d)lntegratedReport.aspx
ii. List of impaired waters needing clean-up plans (88 pg. report),
https://www.deq.virginia.gov/Portals/O/DEQ/Water/WaterQualityAssessments/Integrate
dRep ort/2018/ir18_Appendixla_Category5_List.pdf
iii. List of impaired waters not needing cleanup plans (112 pg. report)
https://www.deg.virginia.gov/Portals/O/DEQ/Water/WaterQualityAssessments/Integrat
edRep ort/2018/ir18 Appendixla Category5 List.pdf
h. Sec. 8: Qualified personnel: List a named individual qualified to perform SWPPP inspections.
i. Sec. 9, Signed Certification: sign certification.
B. Pollution Prevention Plan (PPP) — See above. (Rev. 1) Partially addressed. As follow-up: Revise per
ESC Plan review comments, and perfollow-up items (c.-f.), below.
The PPP content requirements can be found in County Code section 17-404.
Please ensure PPP Exhibit identifies:
a. Rain gauge. (Rev. 1) Addressed. (Rev. 1) Addressed.
b. Construction entrance that drains to a trapping measure. (Rev. 1) Addressed.
As follow-up:
c. If Ex. Path (existing path through field) is stone, no revision requested; if path is
soil/earth, provide stone construction entrance (CE) adjacent Dick Woods Road.
Response: The construction entrance is strategically placed within the site so that it drains to a trapping measure
without having to provide additional grading, diversion, etc. The location of the construction entrance also ensureS
minimal sediment is tracked onto Dick Woods Road. Construction Road Stabilization is proposed between the
construction entrance and dick woods road to minimize the potential for erosion and minimize sediment
accumulation after leaving the construction entrance.
d. Certification Statement, please Note: Redline Drawings are not Construction Record Drawings.
Response: This statement has been removed from the PPP plan as it is not applicable.
e. Add WPO202000026 to PPP title.
Response: Reference to WPO20200026 has been added to the PPP title.
f. Label Dick Woods Road.
Response: Dick Woods Road is now labeled on the PPP Plan.
C. Erosion and Sediment Control Plan (ESCP) — (Rev. 1) If text below is grayscale, comment is addressed.
Virtually all comments addressed. Please note request for revisions at items 20, 21, 22.
An ESC Plan bond is required. Please submit bond estimate request form at earliest convenience. (Rev. 1)
Persists. Applicant: 'An ESC Plan bond estimate request will be submitted upon tentative plan approval'
914 Monticello Road, Charlottesville, VA 22902 172 South Pantops Drive, Charlottesville, VA 22901
Yancey Farm Pad 2 - VESCP Comment Response Letter
Response: A bond estimate has been provided with this submittal.
3of3
14. Provide channel cross-section/s for permanent channels (north / south) created by proposed final
grade, sheet 4.
Response: Channel cross sections have been copied from sheet 5 to sheet 4.
New
20. Sheet 3: Although ST1 and ST2 Calculation tables list base dimensions, please label floor
dimensions in plan view to aid construction inspection.
Response: Floor dimensions for both sediment traps have been labeled in plan view.
21. Revise grades (sheet 3, 4, 5) to show a gradual transition to 3:1 slopes. Proposed transition is 12.5:1 to
3:1, abruptly. Include a gradual, curved transition to 3:1 to mimic natural land features. Engineering will
not approve flat -to -steep (12.5:1-to-3:1) sudden transition in rural areas. 3:1 slopes are permissible, but
revise to show smooth curved transition. We recommend plan notes capture design intent. Ref image,
below.
Response: Acknowledged. Slopes have been adjusted to gradually transition from the top of the fill area to a
4:1 slope at the steepest area of the grading.
22. Label Dick Woods Road.
Response: Dick Woods Road is labeled on this submission.
Please let us know if you have any questions. Thank you.
Respectfully,
Logan O'Day, EIT
Roudabush, Gale, and Associates
914 Monticello Road, Charlottesville, VA 22902 172 South Pantops Drive, Charlottesville, VA 22901