HomeMy WebLinkAboutWPO202100063 Review Comments WPO VSMP 2023-02-16John Anderson
To: Chris Mulligan
Cc: Charlie Armstrong; Jim Taggart, 'Elizabeth Wassman'; Keith Lancaster
Subject: RE: WP0202100034 - Tree -Removal Only, Dunlora Village
From: John Anderson
Sent: Thursday, February 16, 2023 11:33 AM
To: Chris Mulligan <CMulligan@roudabush.com>
Cc: Charlie Armstrong <CharlesA@southern-development.com>; Jim Taggart <1Taggart@roudabush.com>; 'Elizabeth
Wassman' <EWassman@roudabush.com>; Keith Lancaster <klancaster@southern-development.com>
Subject: RE: WP0202100034 - Tree -Removal Only, Dunlora Village
Also, not worried that 22.0 Ac. tree harvest area does not match VRRM.xls, but may want to double-check to ensure 22.0
Ac. meets tree -harvest needs. Amendment #1 LOD should match VRRM.xls submitted with Amendment #1 —thanks,
again.
I think that's it, best, J. Anderson
From: John Anderson
Sent: Thursday, February 16, 2023 11:29 AM
To: Chris Mulligan <CMulligan@roudabush.com>
Cc: Charlie Armstrong <CharlesA@southern-development.com>; Jim Taggart <JTasaart@roudabush.com>;'Elizabeth
Wassman' <EWassman@roudabush.com>; Keith Lancaster <klancaster@southern-development.com>
Subject: RE: WP0202100034 - Tree -Removal Only, Dunlora Village
Note: We need only this note as guidance for plan approval—2/8/23 email likely has( more) import, later. Thanks, best,
J. Anderson
From: John Anderson
Sent: Thursday, February 16, 2023 11:27 AM
To: Chris Mulligan <CMulligan@roudabush.com>
Cc: Charlie Armstrong <CharlesA@southern-development.com>; Jim Taggart <JTaggart@roudabush.com>;'Elizabeth
Wassman' <EWassman@roudabush.com>; Keith Lancaster <klancaster@southern-development.com>
Subject: WP0202100034 - Tree -Removal Only, Dunlora Village
Charlie, thanks for your call.
Chris,
Please accept these review comments on WPO plan received 2/10/23 in lieu of a formal review Memo. Also, please ref.
email sent February 8, 2023 6:27 PM as needed, since that email is valid in most respects (not all, but most).
SWPPP -Submit using county template for Dunlora Village VSMP Tree Removal ONLY plan.
1. Elements of SWPPP submitted with 5-sheet plan are helpful, but insufficient. Template essential.
a. For this plan /future Amendment (and all projects), please always use county template.
b. County template, this link.
c. Sec. 13 of template is furnished by Engineering, once the WPO plan is approved.
(Engineering appends the approved plan to the approved SWPPP via .PDF editing; digital SWPPP must
exist as print copy on -site (with Approved plan), marked approved.)
SWM Plan
2. Please revise plan title to this, exactly: Dunlora Village VSMP Tree Removal Only, WPO#202100063, Phase
1. This is important. Multiple documents will reference this plan by title, precisely.
This title allows reference in documents, and subsequent Amendment, for example: Dunlora Village Subdivision,
WPO#202100063, Phase 2 Improvements, Amendment 1.
Note: Please accept comment, provide SWPPP, and re -submit revised plan asap —if comments addressed with
care, if SWPPP submitted, Engineering can approve plan, 17-Feb.
Revision + SWPPP, per comments allows:
• Registration for state permit, VAR10
• SWM Maintenance Agreement (required for plan approval); Agreement required for FOS. Also, for
Phase 2 SWM.
SWM Maintenance Agreement requires plan title referenced above for forest -open space (see SWM
plan, below)
• County to record SWM Maintenance Agreement
• Signature information review by county attorney
• WPO plan bond to be posted; re. WPO plan bond:
o J. Anderson to revise RGA ESC plan bond estimate Amt., $157,250 submitted 2/10/23,
downward. Amt. will be somewhat less.
o ESC plan bond will include $50k lump sum (LS) for sediment traps or basins not yet designed or
shown on plan, but anticipated.
o This idea originates (bond future ST/SB) with county engineer.
0 2100 LF silt fence bond line item will be revised to TP, at same unit price.
o TS will be revised to 10.0 Ac. since site land disturbance will be limited. Next bullet.
o LOD, 22 Ac., includes areas anticipated not to be impacted by tree -felling activity during Phase 1
development.
o Note: ESC plan bond will increase with Amendment /Phase 2. Also (Phase 2) Amendment #1 wil
require a SWM plan bond.
3. Calculations: In departure from email sent February 8, 2023 6:27 PM; calculations other than described in this
item 3. are not required for the Tree Removal ONLY plan.
• Albemarle requests RGA revise VRRM.xIs to inc. 0.5 Ac. impervious and 7.5 Ac. FOS (reducing
phosphorus reduction to -0.03 lb.). See image /Attached:
r 2012 BMP Standards and Spedikations 02013 Daft SM P Standards and Specifications
Prl Nam.: WP0202300063 - Dunlon Farm, Phase 1, Tree Removal onl
Dat•: 16-Feb 2023
BMP Design Specifiootfona Lirr: 2013 Draft Stds & Specs
Site Information
Post -Development Project (Treatment Volume and Loads)
Cover
ASdb I asoila I CShcs Dsuils Total,
Forest/open Spaae (aces) -- undisturbed,
preteded forest/open spareorreforestetl lantl 7.50 ].50
Managed Tud(was)-- dleurbed, graded for
yards or other turf to be mowetl/managetl 2.30 39.20 41.50
lmpervlous Cover(ames) „- 0.50
• soae:V0,o spare oreaa mu#bepWer edm oeoo.mnae with the vng(nm RunoryRmumon Memod
AnnU8I R818M11(IMTM)
43
Target Rainfall Event(Inches)
1.00
Total nlosphorus(TP) EMC(nsg/L)
0.26
Total Nitrogen(TN)EMC(mg/L)
1.86
Target TP Load (lb/ane/,r)
0.41
PI(umtlan aorremon factor)
0.90
Runoff CoefRdents Rv
A Soils
5Sells
Cselb
DWl$
Eonewopenspane
OA2
0.03
OA4
0.05
Managed Turf
1
0.15
1 0.20
1 0.22 1
0.25
Impeniousaover
1
0.95
1 0.95
1 0.95 1
0.95
Revise VRRM.xIs (0.5 Ac. impervious; 7.50 Ac. Forest/open, HSG B) to allow 12' w, 1,815 LF stone
construction road (impervious).
Alternatively, revise VRRM.xls to inc. 0.5 Ac. impervious construction road for tree felling, and provide
letter of 2.53 lb. nutrient credit availability from an eligible nutrient credit bank.
Post -Development Project (Treatment Volume and Loads)
Land Cover (acres)
A Soils
BSoils
CSoils
DSells
Totals
Forest/Open Space (aces) --undisturbed,
pmteded forest/open space or reforeirl land
0.00
000
Me rolled! Turf(aarer) -- disturbed, graded for
yams or other turf to be mowetl/managetl
2.30
39.20
41.50
lnn"Mlouscover(asres)
0.50
0.50
42.00
Constants
Annual Rainfall(Inttes)
43
Target Rainfall Event(lndles)
1.00
Twl Phosphorus(TP) EMC(mg/L)
0.26
Total Nitrogen nN) EW (nWM
1.96
Target TP Load(lb/./yr)
0.41
P)(unitlessoarrealonfaatar)
0.90
Runoff Coeffidents Rv
A Seib
6Sella
CSells
DSoils
Foren/open space
0.02
0.03
0.04
0.05
Managed Turf
0.15
0.20
0.22
0.25
Impervious C.ve,
0.95
0.95
0.95
0.95
• An eligible nutrient bank is a bank with sufficient credits to sell located in project HUC 02080204, or
adjacent HUC.
Engineering anticipates (prior submittal) approx. 18.5 Ac. FOS to meet state stormwater water quality
requirements, once plan is amended.
By revising VRRM.xIs (sheet 5) to show 7.50 Ac. FOS and 0.5 Ac. impervious post-dev tree removal land
cover, nutrient purchase requirement is reduced to a 0.03 lb. credit. No purchase is required, if 7.50 Ac.
FOS post-dev land cover.
• Note: If there is unmet tree removal phase nutrient purchase requirement (positive value /no credit),
then Applicant must complete purchase prior to receiving a Grading permit. A grading permit is
required to cut trees.
• 7.50 Ac. FOS land cover requires an easement, yet trees may be cut with an approved plan /WPO plan
bond /Grading Permit, since F05 easement may be shown on first final subdivision plat.
• Pls. delineate /show /label 7.50 Ac. FOS easement via linework, notes and labels, on sheet 3. Again, ii
nutrient purchase required (positive value /no credit), then purchase must be complete prior to
receiving a grading permit.
o Nutrient purchase requires:
• Letter of 2.53 lb. nutrient credit availability be shown on the plan, sheet 5.
• Purchase documents be reviewed by Ana Kilmer prior to executing bill of sale.
• Purchase must be complete, and Affidavit and bill of sale reviewed and approved.
Once items above complete, plan approved, bond posted, and VAR10 issued, Grading
permit may be issued.
4. Phase 2, Amendment #1 will present SWM design shown with prior plans. Please rely on discussion to -date
when revising calcs. or SWM plan.
ESC plan
5. Include VESCH details, plates Plate 3.13-2 (ST); 3.14-2 (SB).
a. Although neither trap nor basin detailed design is required at this time, it is important that these typ.
details appear on the plan.
6. Include prominent label centered on graphic image of areas to be cleared of trees, to read: 'Apply mulch, 50'
wide ground cover upslope of TP'
a. Locate label in center of site, for example, between contours 440' and 450', sheet 3, with multiple
leader lines to indicate where.
b. Provide additional existing contour labels, sheet 3.
c. Include Additional Notes, sheet 3 to read:
i. New Note 1: 'Trees > 3" DIA at breast height may not be cut, Apr-1 thru Nov-14, of any year
(TOYR), per ESA Section 7 species -specific protections for the Northern Long Eared Bat (NLEB),
pending further USFWS guidance.'
ii. 'Albemarle recommends mulch cover from chipping limbs on -site for any area logged, and
requires mulch ground cover for 50' (Min.) width upslope of any tree protection fencing, and
upslope of any limit of tree -clearing.'
iii. 'County ESC inspector may direct placement of additional ESC measures not shown if deemed
necessary to control or limit erosion and off -site sediment transport during or after tree -
clearing.'
iv. 'No cutting of trees is permissible within jurisdictional wetland areas without U.S. Army Corps of
Engineers (USACE) permit clearance. Jurisdictional wetland areas are identified, and labeled'
v. Tree protection measures are to be maintained throughout the course of the project and are to
be replaced if damaged'
d. Revise sheet 3 Notes, as follows:
i. Ex. Note 1: Add lead phrase: 'During NLEB TOYR, prior to...'
ii. Note 3: Delete reference to brush barriers.
iii. Note 4: Delete
iv. Note 6: Replace 'Proposed preliminary limits of disturbance is concurrent' with 'Proposed
preliminary limits of tree harvest area are concurrent...'.
v. Note 7: Delete first sentence, then revise remainder to: Tree protection shall be implemented
on uphill slopes where applicable or as directed to preserve stands of trees that shall remain'
vi. Note 8: Revise to state contractor (not county inspector) to mark preserved steep slopes.
vii. Note 10: Append this to end of note: '(is permissible) during tree removal Phase 1.'
viii. Note 11: Revise to read: 'Total tree harvest area = 22.0 Ac'
ix. Note 13: Append to Note: 'See also WPO202000034 Amendment #2, approved 1/10/23'
7. Mulch is not required if tree -cut area is downslope of limit of tree -clearing with runoff to interior of site, but
such areas are few, if any. In any case, mulch is recommended for exposed earth.
8. Mulch is not required for existing agricultural land, meadow, pasture, etc., unforested areas with no tree -
clearing. Objective is mulch to bare earth, and any tree cut area 50' upslope of limits of tree clearing.
9. Albemarle does not approve brush barriers.
10. Brush barriers are ineffective on sloped terrain or with clay soil. Brush barriers would also obstruct and impede
access for Phase 2 development.
11. Remove brush barrier (BB) symbol from legend, BB linework /labels from plan, and reference to brush barriers in
notes.
12. Remove super silt fence SSF linework /legend /label /notes from sheet 3 of plan, but retain detail on sheet 5, for
use if needed (similar to ST /SB plates).
13. Show WPO202000034 Amendment #2 2.80 Ac. LOD linework (off -site Belvedere V grading at end of Miranda
and Fowler, on Dunlora Farm parcel).
14. Sheet 3: Delete 'Limits of Clearing & Grubbing' Label. Grubbing is impermissible.
15. Tree protection (TP) linework /legend /labels /notes are fine —please do not revise, or remove.
16. Show (linework) 1,500-1,800 LF construction road, beginning at existing Dunlora Farm road.
General
17. There is urgency: Northern long-eared bat (NLEB) USFWS designation as a federally endangered species imposes
time of year restriction (TOYR) on tree cutting.
18. NLEB TOYR begins Apr-1, 2023. Endangered Species Act (ESA) Section 7.
19. After Mar-31, trees > 3" DIA (breast height) may not be felled until tree -cutting restriction ends November 14, of
any year.
20. Federally -endangered (FE) species protection for the NLEB is eff., Mar-31, 2023. See links, this email.
21. NLEB — USFWS Q&A sheet.
22. USFWS, background.
23. Virginia Ecological Services Field Office (on-line process). From USFWS website
a. Conduct tree removal activities outside of the NLEB pup season (June 1-July 31) and/or the active
season (April 1-November 14).
b. Avoid clearing suitable spring staging and fall swarming habitat within a5-mile radius of known or
assumed NLEB hibernacula during the spring staging and fall swarming season (April 1-May 14 and
August 16-November 15).
c. Manage forests to ensure a continual supply of snags and other suitable maternity roosts trees.
d. Conduct prescribed burns outside of the pup season (June 1-July 31) and/or the active season (Aprill-
November 14). Avoid high -intensity burns (causing tree scorch higher than NLEB roosting heights)
during the summer maternity season to minimize direct impacts to NLEB.
e. Perform bridge repair, retrofit, maintenance, and/or rehabilitation work outside of the NLEB active
season (April 1-November 14) in areas where NLEB are known to roost on bridges or where such use is
likely.
f. Do not use military smoke and obscurants within forested suitable NLEB habitat during the pup
season (June 1-July 31) and/or the active season (April 1-November 14).
24. No grading is permitted with proposed Tree -removal only plan except as needed to level for construction haul
road. RGA estimates 1500 LF construction road. Rev. VRRM.xls allows 1,815' x 12' w haul road.
25. Amendment #1 (future submittal)
a. We anticipate RGA will rely on email /comments /meeting guidance, and will submit an Amendment #1
(incl. SWM /Calcs.) in the near future.
b. Amendment #1 requires separate application fee, additional WPO plan bond amount, and SWM /public
drainage easements (may record with first subdivision plat).
c. Amendment #1 requires clear calculations, and compliance summaries.
26. Date /sign PE -seal, all sheets.
Thanks, everyone!
best, J. Anderson
John E. Anderson, PE I Civil Engineer 11
Department of Community Development I County of Albemarle, Virginia
401 McIntire Road I Charlottesville, VA 22902
434.296.5832 ext. 3069
From: Chris Mulligan <CMulliean@roudabush.com>
Sent: Tuesday, February 14, 2023 1:13 PM
To: John Anderson <0anderson2@albemarle.org>
Subject: RE: Dunlora
Hi John,
If you are referring to WPO prints then yes sir!
Prints were delivered.
Please understand that I am here to feed you John, so please reach -out and I will provide you whatever you may need.
Best,
Chris
From: John Anderson <janderson2@albemarle.orl=>
Sent: Tuesday, February 14, 2023 7:51 AM
To: Chris Mulligan <CMulligan@roudabush.com>
Subject: RE: Dunlora
Thanks, Chris, print plan, right?
From: Chris Mulligan <CMulligan@roudabush.com>
Sent: Monday, February 13, 2023 8:57 AM
To: John Anderson <0anderson2@albemarle.org>
Subject: Dunlora
John,
Hope you enjoyed the Superbowl!
Wanted to let you know that we dropped off the additional fee, the plan and bond estimate for Clearing Only Plan on
Friday.
I am updating the PPP plan to reflect the clearing exercise, and will update the SWPP doc as well to reflect.
Should you have any question or need any additional info, please let me know and I'll keep you fed.
Best,
Chris Mulligan, PE
Eoudabush, Gale & Assoc., Inc. I Engineering
Physical Address:
999 Second St. SE. Suite 2or
Charlottesville, VA 22902
Mailing Address:
435 Merchant Walk Sq., Suite 3oo-159
Charlottesville, VA 229o2
Phone: (434) 977-0205
unaw.roudabush.com