20100337 Ver 1_401 Application_20100510

20100337
WITHERS RAVENEL
ENGINEERS I PLANNERS I SURVEYORS
111 MacKenan Drive
CARY, NORTH CAROLINA, 27511
[phone]
FAX [phone]
To: Amy Chapman
NCDWQ Wetlands Branch
Crabtree Blvd
Ralei-zh, NC
WE ARE SENDING YOU
? Shop Drawings
? Copy of Letter
LETTER OF 7° ° NSMMAL
DATE 5-5-10 JOB No. 201000
AMN'nON Amy Chapman
PHONE# [phone]
RE: Finley YMCA Pond Maintenance

® Attached ? Under separate cover via
? Prints ? Plans ? Samples
? Change order ? Diskette ?
DENR - WATER UUALIlY
? Resubmit copies oAr aappovai
?Submit copies for distribution
? Return corrected prints
COPIES DATE NO. DESCRIPTION
1 5-5-10 1 Check for $240
5-5-10 2 Completed PCN Form
-5-10 Cover Letter
5-5-10 Plan Sheet

THESE ARE TRANSMITTED as checked below:
® For approval ? Approved as submitted
? For your use ? Approved as noted
? As requested ? Returned for corrections
? For review and comment ?
? FORBIDS DUE 20 ? PRINTS RETURNED AFTER LOAN TO US
REMARKS: Amy -here is the deisgn info forthe requested pond maintenance at the Finley YMCA.
We have limited the disturbance to zone 1 of the buffer and included a stream restoration
Structure to remediate the stream head cut that has formed.
If you have any questions or need additional information please do not hesitate to call
me at 919-535-51
Thanks
COPY TO: file
the following items:
? Specifications
SIGNED: Hiner C. Freeman, PE
If enclosures are not as noted, kindlynotify us at once.
WITHERSRAVEN EL
ENGINEERS I PLANNERS I SURVEYORS
MEMORANDUM
TO: Jamie Shern, USACE
Amy Chapman, NC DWQ Wetlands Branch
FROM: Hunter C. Freeman, PE
CC: file
DATE: May 5, 2010
SUBJECT: A.E. Finley YMCA Water Quality Impoundment Maintenance
In March 1996, the City of Raleigh granted approval for construction of a water quality
impoundment on the grounds of the A.E. Fnley YMCA facility, located on Baileywick
Drive, near the intersection with Six Forks Road. The impoundment was constructed on a
perennial stream, as shown on the USGS Quad Map. The site lies within the Falls Lake
watershed.
The existing impoundment has a normal pool area of approximately 15000 sf. There are
Neuse river Buffers and City of Raleigh Resource Conservation Buffers on either side of
the pond and upstream and downstream channels.
The existing pond has partially filled in with sediment from upstream areas. There is a
severe headcut working up the upstream channel which has also contributed to the
ill MacKenan Drive Cary, North Carolina 27511 tei:919.469.3340 fax:[phone]oo8 www.withersravenet.com
sediment deposition. The pond embankments are populated with small pine trees and
other small caliper ground cover. The downstream slope of the embankment is also
populated with small trees. There is an existing chain link fence around the
impoundment.
The work proposed in and around the impoundment includes removal of accumulated
sediment, vegetation maintenance, and stream stabilization. The intent of the work is to
restore the functionality of the impoundment to ensure long term protection of water
quality and stream habitat downstream.
Sediment will be removed from the pond using a small track mounted dozer (Cat D3K or
similar) which will push the accumulated sediment to one corner of the impoundment.
The sediment will be removed from the pond using a hydraulic excavator (Cat 225 or
similar). The removed sediment will be deposited onsite in upland areas, or trucked offsite
to a proper disposal area.
On the interior slopes of the pond, existing vegetation will be maintained as allowed by
exempt activities listed in the Neuse Buffer Rules. There will be no soil disturbance to
Zone 1 of the buffer other than what is shown on the attached plan. In Zone 2 of the
buffer, the soil may be slightly regraded to establish stable side slopes, and the area will
be reseeded with grass, which will be mowed to approximately 6" throughout the year.
Within the pond water area, the sediment will be removed and there will be minor
grading to restore the originally proposed volume and shape of the impoundment.
The trees on the downstream slope of the dam will be cut approximately 6" above the
ground surface. To preserve the structural stability of the embankment, the stumps will
remain in place, no earthwork or grubbing is proposed.
There is a headcut moving up the channel from the upstream edge of the pond. The
headcut is approximately 10' deep and 20' wide at the edge of the impoundment. The
stream channel will be stabilized using stream restoration techniques, specifically a
constructed step-pool sequence. The step-pool sequence will utilize large boulders to
establish grade control within the channel. The stream bed will be regarded to tie into the
boulder structures. Limited riprap or gravel may be used to ensure that the structures are
properly sealed to prevent flow from undercutting the structures. All disturbed areas in
and around the channel will be stabilized by seeding and riparian buffer vegetation
(Chapter 15 of the BMP manual) within 15 days of construction.
All work is anticipated to be completed within 60 days of project approval.
Additional information is included on the attached schematic plan.
iii MacKenan Drive Cary, North Carolina 27511 tel:[phone] fax:[phone]oo8 www.withersravenel.com
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Office Use Only:
Corps action ID no.
DWQ project no.
Form Version 1.3 Dec 10 2008
Pre-Construction Notification PC Form
A. Applicant Information
1. Processing g4 P AL 11
1 a. Type(s) of approval sought from the
Corps:
®Section 404 Permit El Section 10 Permit
1b. Specify Nationwide Permit (NWP) number: NWP 3 or General Permit (GP) number:
1 c. Has the NWP or GP number been verified by the Corps? ? Yes ® No
1 d. Type(s) of approval sought from the DWQ (check all that apply):
? 401 Water Quality Certification - Regular ? Non-404 Jurisdictional General Permit
? 401 Water Quality Certification - Express ® Riparian Buffer Authorization
1 e. Is this notification solely for the record
because written approval is not required? For the record only for DWQ 401
Certification:
? Yes ® No For the record only for Corps Permit:

? Yes ® No
1f. Is payment into a mitigation bank or in-lieu fee program proposed for mitigation
of impacts? If so, attach the acceptance letter from mitigation bank or in-lieu
fee program. ? Yes ® No
1g. Is the project located in any of NC's twenty coastal counties. If yes, answer 1 h
below. ? Yes ® No
1h. Is the project located within a NC DCM Area of Environmental Concern (AEC)? ? Yes ® No
2. Project Information
2a. Name of project: A.E. Finley YMCA Pond Maintenance
2b. County: Wake
2c. Nearest municipality / town: Raleigh '
2d. Subdivision name: N/A IAAY 40 10
2e. NCDOT only, T.I.P. or state
project no:
N/A
-?,rcti i.Y
3. Owner Information y
3a. Name(s) on Recorded Deed: Yound Men's Christian Accosciation of Raleigh
3b. Deed Book and Page No. 03038, pg 0531
3c. Responsible Party (for LLC if
applicable):
3d. Street address: 9216 Baileywick Road
3e. City, state, zip: Raleigh, NC 27615
3f. Telephone no.: 919-848-9622
3g. Fax no.: 919-676-3373
3h. Email address:
Page I of 11
PCN Form - Version 1.3 December 10, 2008 Version
4. Applicant Information (if different from owner)
4a. Applicant is: ? Agent ® Other, specify: Primary Contact
4b. Name: Chris Hughs
4c. Business name
(if applicable): A.E. Finley YMCA
4d. Street address: 9216 Baileywick Road
4e. City, state, zip: Raleigh, NC 27615
4f. Telephone no.: 919-848-9622
4g. Fax no.: 919-676-3373
4h. Email address: [e-mail]
6. Agent/Consultant Information (if applicable)
5a. Name: Hunter Freeman
5b. Business name
(if applicable): Withers & Ravenel, Inc
5c. Street address: 111 macKenan Drive
5d. City, state, zip: Cary, NC 27511
5e. Telephone no.: 919-469-3340
5f. Fax no.: 919-467-6008
5g. Email address: [e-mail]
Page 2 of 11
PCN Form - Version 1.3 December 10, 2008 Version
B. Project Information and Prior Project History
1. Property Identification
1a. Property identification no. (tax PIN or parcel ID): PIN: 1708154718
1 b. Site coordinates (in decimal degrees): Latitude: 35.909211 Longitude: - 78.65630
(DD.DDDDDD) (-DD.DDDDDD)
1 c. Property size: 26.91 acres
2. Surface Waters
2a. Name of nearest body of water (stream, river, etc.) to Barton Creek
proposed project:
2b. Water Quality Classification of nearest receiving water: WS-IV, NSW, CA
2c. River basin: Neuse
3. Project Description
3a. Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of this
application:
The YMCA Campus consits of buildings, athletic field, and associated infrastructure. The work proposed is maintenance
to a water quality impoundment, which is wooded, with eroded areas.
3b. List the total estimated acreage of all existing wetlands on the property:
0
3c. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property:
980 LF
3d. Explain the purpose of the proposed project:
Maintenance of existing water quality impoundment, originally constructed in 1996
3e. Describe the overall project in detail, including the type of equipment to be used:
The work proposed in and around the impoundment includes removal of accumulated sediment, vegetation maintenance,
and stream stabilization. The intent of the work is to restore the functionality of the impoundment to ensure long term
protection of water quality and stream habitat downstream.
Accumulated sediment will be removed from the within pond using a small track mounted dozen (Cat D3K or similar)
which will push the accumulated sediment to one corner of the impoundment. The sediment will be removed from the
pond using a hydraulic excavator (Cat 225 or similar). The removed sediment will be deposited onsite in upland areas, or
trucked offsite to a proper disposal area.
On the interior slopes of the pond, existing understory vegetation will be cleared as allowed by the Neuse buffer
Regulations. The soil in within the pond water zone will be regraded to restore the originally proposed volume and shape
of the impoundment. Zone 1 of the buffer will not be graded other than the access path shown on the plan. This area of
zone 1 will be replated with riparian vegetation. Zone 2 of the buffer will be cleared and may be slightly regraded and the
area will be reseeded with grass, which will be mowed to approximately 6" throughout the year.
The trees on the downstream slope of the dam will be cut approximately 6" above the ground surface. To preserve the
structural stability of the embankment, the stumps will remain in place, no earthwork or grubbing is proposed.
There is a headcut moving up the channel from the upstream edge of the pond. The headcut is approximately 10' deep
and 20' wide at the edge of the impoundment. The stream channel will be stabilized using stream restoration techniques,
specifically a constructed step-pool sequence. The step-pool sequence will utilize large boulders to establish grade
control within the channel. The stream bed will be regarded to tie into the boulder structures. Limited riprap or gravel may
be used to ensure that the structures are properly sealed to prevent flow from undercutting the structures. All disturbed
areas in and around the channel will be stabilized by seeding and riparian planting within 15 days of construction.
All work is anticipated to be completed within 60 days of project approval.
Page 3 of 11
PCN Form - Version 1.3 December 10, 2008 Version
4. Jurisdictional Determinations
4a. Have jurisdictional wetland or stream determinations by the
Corps or State been requested or obtained for this property /
? Yes ®No ? Unknown
project (including all prior phases) in the past?
Comments:
4b. If the Corps made the jurisdictional determination, what type
? Preliminary ? Final
of determination was made?
4c. If yes, who delineated the jurisdictional areas? Agency/Consultant Company: N/A
Name (if known): N/A Other: N/A
4d. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation.
N/A
5. Project History
5a. Have permits or certifications been requested or obtained for ® Yes ? No ? Unknown
this project (including all prior phases) in the past?
5b. If yes, explain in detail according to "help file" instructions.
City of Raleigh issued site plan approval and building permits for water quality pond in March 1996
6. Future Project Plans
6a. Is this a phased project? ? Yes ® No
6b. If yes, explain.
Page 4 of 11
PCN Form -Version 1.3 December 10, 2008 Version
C. Proposed Impacts Inventory
1. Impacts Summary
1a. Which sections were completed below for your project (check all that apply):
? Wetlands ® Streams - tributaries ® Buffers
® Open Waters ? Pond Construction
2. Wetland Impacts
If there are wetland impacts proposed on the site, then complete this question for each wetland area impacted.
2a. 2b. 2c. 2d. 2e. 2f.
Wetland impact Type of jurisdiction
number - Type of impact Type of wetland Forested (Corps - 404, 10 Area of impact
Permanent (P) or (if known) DWQ - non-404, other) (acres)
Temporary
W1 ? P ? T ? Yes ? Corps
? No ? DWQ
W2 ? P ? T ? Yes ? Corps
? No ? DWQ
W3 ? P ? T ? Yes ? Corps
? No ? DWQ
W4 ? P ? T ? Yes ? Corps
? No ? DWQ
W5 ? P ? T ? Yes ? Corps
? No ? DWQ
W6 ? P ? T ? Yes ? Corps
? No ? DWQ
2g. Total wetland impacts 0
2h. Comments:
3. Stream Impacts
If there are perennial or intermittent stream impacts (including temporary impacts) proposed on the site, then complete this
question for all stream sites impacted.
3a. 3b. 3c. 3d. 3e. 3f. 3g.
Stream impact Type of impact Stream name Perennial Type of jurisdiction Average Impact
number - or
(PER)
(Corps - 404, 10
stream
length
Permanent (P) or intermittent DWQ - non-404, width (linear
Temporary (T) (INT)? other) (feet) feet)
S1 ®P ? T Stram Stabilization Trib to Lower
Barton Creek ® PER
? INT ® Corps
? DWQ 3 120
S2 ? P ? T ? PER ? Corps
? INT ? DWQ
S3 ? P ? T ? PER ? Corps
? INT ? DWQ
S4 ? P ? T ? PER ? Corps
? INT ? DWQ
S5 ? P ? T ? PER ? Corps
? INT ? DWQ
S6 ? P ? T ? PER ? Corps
? INT ? DWQ
3h. Total stream and tributary impacts 120
3i. Comments: Stream restoration techniques used.
Page 5 of 11
PCN Form - Version 1.3 December 10, 2008 Version
4. Open Water Impacts
If there are proposed impacts to lakes, ponds, estuaries, tributaries, sounds, the Atlantic Ocean, or any other open water of
the U.S. then individually list all open water impacts below.
4a. 4b. 4c. 4d. 4e.
Open water Name of waterbody
impact number (if applicable) Type of impact Waterbody type Area of impact (acres)
- Permanent
(P) or
Temporary T
01 ? P ® T Water Quality Sediment removal Water Quality 0.35
Impoundment Pond
02 ?P?T
03 ?P?T
04 ?P?T
4f. Total open water impacts 0.35
4g. Comments:
5. Pond or Lake Construction
If and or lake construction proposed, then com lete the chart below.
5a. 5b. 5c. 5d. 5e.
Wetland Impacts (acres) Stream Impacts (feet) Upland
Pond ID Proposed use or purpose of (acres)
number pond
Flooded Filled Excavated Flooded Filled Excavated Flooded
P1
P2
R Total
5g. Comments:
5h. Is a dam high hazard permit required?
? Yes ? No If yes, permit ID no:
5i. Expected pond surface area (acres):
5j. Size of pond watershed (acres):
5k. Method of construction:
Page 6 of 11
PCN Form - Version 1.3 December 10, 2008 Version
S. Buffer Impacts (for DWQ)
If project will impact a protected riparian buffer, then complete the chart below. If yes, then individually list all buffer impacts
below. If an impacts require mitigation, then you MUST fill out Section D of this form.
6a.
® Neuse ?Tar-Pamlico ? Other:
Project is in which protected basin? ? Catawba ? Randleman
6b. 6c. 6d. 6e. 6f. 6g.
Buffer impact
number- Reason for Buffer Zone 1 impact Zone 2 impact
Permanent (P) impact Stream name mitigation (square feet) (square feet)
or Temporary required?
Vegetation ? Yes
B1 ®P ? T Management Trib to Lower Barton Creek ® No 750 7,721
& Regrading
B2 ® P ? T Vegetation
Management Trib to Lower Barton Creek ? Yes
® No 0 3,888
B3 ? P ®T
T
Stream
Stabilization
Trib to Lower Barton Creek
? Yes
® No
4,653
105
6h. Total buffer impacts 5,403 11,714
6i. Comments:
D. Impact Justification and Mitigation
1. Avoidance and Minimization
1a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project.
Work confined to pond slopes and area of eroded channel, interior of pond protected by silt fence, downstream outlet
protected by gravel filter.
1b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques.
Small equipment will be used within the buffered area, with larger equipment, including all material storage and hauling,
located outside of the buffer. Silt fence and tree protection fencing used to control traffic and limits of disturbance.
2. Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State
2a. Does the project require Compensatory Mitigation for ? Yes ® No
impacts to Waters of the U.S. or Waters of the State?
2b. If yes, mitigation is required by (check all that apply): ? DWQ ? Corps
? Mitigation bank
2c. If yes, which mitigation option will be used for this project? ? Payment to in-lieu fee program
? Permittee Responsible Mitigation
3. Complete if Using a Mitigation Bank
3a. Name of Mitigation Bank:
3b. Credits Purchased (attach receipt and letter) TType Quantity
Page 7 of 11
PCN Form - Version 1.3 December 10, 2008 Version
3c. Comments:
4. Complete if Making a Payment to In-lieu Fee Program
4a. Approval letter from in-lieu fee program is attached. ? Yes
4b. Stream mitigation requested: linear feet
4c. If using stream mitigation, stream temperature: ? warm ? cool ?cold
4d. Buffer mitigation requested (DWQ only): square feet
4e. Riparian wetland mitigation requested: acres
4f. Non-riparian wetland mitigation requested: acres
4g. Coastal (tidal) wetland mitigation requested: acres
4h. Comments:
5. Complete if Using a Permittee Responsible Mitigation Plan
5a. If using a permittee responsible mitigation plan, provide a description of the proposed mitigation plan.
6. Buffer Mitigation (State Regulated Riparian Buffer Rules) -required by DWQ
6a. Will the project result in an impact within a protected riparian buffer that requires
buffer mitigation? ? Yes ® No
6b. If yes, then identify the square feet of impact to each zone of the riparian buffer that requires mitigation. Calculate the
amount of mitigation required.

Zone 6c.
Reason for impact 6d.
Total impact
(square feet)
Multiplier 6e.
Required mitigation
(square feet)
Zone 1 3 (2 for Catawba)
Zone 2 1.5
6f. Total buffer mitigation required:
6g. If buffer mitigation is required, discuss what type of mitigation is proposed (e.g., payment to private mitigation bank,
permittee responsible riparian buffer restoration, payment into an approved in-lieu fee fund).
6h. Comments:
Page 8 of 11
PCN Form - Version 1.3 December 10, 2008 Version
E. Stormwater Management and Diffuse Flow Plan (required by DWQ)
1. Diffuse Flow Plan
1a. Does the project include or is it adjacent to protected riparian buffers identified ® Yes ? No
within one of the NC Riparian Buffer Protection Rules?
1b. If yes, then is a diffuse flow plan included? If no, explain why.
Comments: Plan not associated with any new built upon area or development, ? Yes ® No
maintenance of existing structure only, existing flow paths will be maintained
2. Stormwater Management Plan
2a. What is the overall percent imperviousness of this project? 0%
2b. Does this project require a Stormwater Management Plan? ? Yes ® No
2c. If this project DOES NOT require a Stormwater Management Plan, explain why: No new impervious surface proposed,
existing stormwater plan in place
2d. If this project DOES require a Stormwater Management Plan, then provide a brief, narrative description of the plan:
? Certified Local Government
2e. Who will be responsible for the review of the Stormwater Management Plan? ? DWQ Stormwater Program
? DWQ 401 Unit
3. Certified Local Government Stormwater Review
3a. In which local government's jurisdiction is this project? Raleigh
? Phase II
3b. Which of the following locally-implemented stormwater management programs ® NSW
? USMP
apply (check all that apply): ® Water Supply Watershed
? Other:
3c. Has the approved Stormwater Management Plan with proof of approval been ? Yes ® No
attached?
4. DWQ Stormwater Program Review
? Coastal counties
? HQW
4a. Which of the following state-implemented stormwater management programs apply ? ORW
(check all that apply):
? Session Law 2006-246
? Other:
4b. Has the approved Stormwater Management Plan with proof of approval been
attached? ? Yes ® No
5. DWQ 401 Unit Stormwater Review
5a. Does the Stormwater Management Plan meet the appropriate requirements? ® Yes ? No
5b. Have all of the 401 Unit submittal requirements been met? ® Yes ? No
Page 9 of 11
PCN Form - Version 1.3 December 10, 2008 Version
F. Supplementary Information
1. Environmental Documentation (DWQ Requirement)
1 a. Does the project involve an expenditure of public (federal/state/local) funds or the ? Yes ® No
use of public (federal/state) land?
1 b. If you answered "yes" to the above, does the project require preparation of an
environmental document pursuant to the requirements of the National or State ? Yes ? No
(North Carolina) Environmental Policy Act (NEPA/SEPA)?
1c. If you answered "yes" to the above, has the document review been finalized by the
State Clearing House? (If so, attach a copy of the NEPA or SEPA final approval
? Yes ? No
letter.)
Comments:
2. Violations (DWQ Requirement)
2a. Is the site in violation of DWQ Wetland Rules (15A NCAC 2H .0500), Isolated
Wetland Rules (15A NCAC 2H .1300), DWQ Surface Water or Wetland Standards, ? Yes ® No
or Riparian Buffer Rules (15A NCAC 2B .0200)?
2b. Is this an after-the-fact permit application? ? Yes ® No
2c. If you answered "yes" to one or both of the above questions, provide an explanation of the violation(s):
3. Cumulative Impacts (DWQ Requirement)
3a. Will this project (based on past and reasonably anticipated future impacts) result in ? Yes ® No
additional development, which could impact nearby downstream water quality?
3b. If you answered "yes" to the above, submit a qualitative or quantitative cumulative impact analysis in accordance with the
most recent DWQ policy. If you answered "no," provide a short narrative description.
4. Sewage Disposal (DWQ Requirement)
4a. Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of wastewater generated from
the proposed project, or available capacity of the subject facility.
Page 10 of 11
PCN Form - Version 1.3 December 10, 2008 Version
5. Endangered Species and Designated Critical Habitat (Corps Requirement)
5a. Will this project occur in or near an area with federally protected species or
habitat? ? Yes ® No
5b. Have you checked with the USFWS concerning Endangered Species Act
impacts? ? Yes ® No
5c. If yes, indicate the USFWS Field Office you have contacted. El Raleigh
? Asheville
5d. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical
Habitat?
6. Essential Fish Habitat (Corps Requirement)
6a. Will this project occur in or near an area designated as essential fish habitat? ? Yes ? No
6b. What data sources did you use to determine whether your site would impact Essential Fish Habitat?
7. Historic or Prehistoric Cultural Resources (Corps Requirement)
7a. Will this project occur in or near an area that the state, federal or tribal
governments have designated as having historic or cultural preservation
status (e.g., National Historic Trust designation or properties significant in
North Carolina history and archaeology)?
? Yes ? No
7b. What data sources did you use to determine whether your site would impact historic or archeological resources?
8. Flood Zone Designation (Corps Requirement)
8a. Will this project occur in a FEMA-designated 100-year floodplain? ? Yes ® No
8b. If yes, explain how project meets FEMA requirements:
8c. What source(s) did you use to make the floodplain determination??ncfloo/Qmaps.com
Hunter C. Freem an
i 05-05-2010
Applicant/Agent's Printed Name pplican Agent's Signature
(Agent's signature is valid only if an authorization letter from the applicant
is provided.) Date
Page 11 of 11
PCN Form - Version 1.3 December 10, 2008 Version
A I
1 - - - ,i
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~ I . " ~ IN ZONE 1. SEE NOTE ® I (
~ o ~
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BOULDER INVERT ELEV. ~
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i _ INVERT E EV. ~ ~ E~~
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~ ~ ~ ~ I i STORIvi¢'Vl~'"€R ` CLASS II RIP RAP ~?P RAP I ~ l~l~)°~'` I~~) ~ ;~~u~ , % SCOUR FLOW ---s
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i~ ' ~ ' ~ i I~ EIEVAT10N POINT
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i 1 ~ ~ ~'c:o;>s o ~ -MATTING ' !°`~c ~ ? TOE OF BANK ~t,~o~0~° v. ~
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( ~ ti T ~ ~ 2 ~w PLANTING STANDARDS A5 DESIGNA ED N
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' i ! 2 ~ ~ NCDENR BMP MANUAL 1 inch = 30 ft. 2 • ~ ~ v~ `I Z
NOTES: X
SITE PLAN W
1 "=30' 1. THE CONTRACTOR SHALL TAKE CARE TO MINIMIZE
A DISTURBANCE TO EXISTING VEGETATION DURING CONSTRUCTION.
2. ALL DISTURBED AREAS SHALL BE SEEDED AND MULCHED,
ZONE 1 ZONE 2 USE BOTH TEMPORARY AND PERMANENT GRASS SEED.
E rt
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Y ARI A R I A TR 7 7 7 1
Q CLE NG ND G UBB NG, LL EES 50 2 a 4+
Z ~ SEDIMENT REMOVAL 15,024 o
W C®NSTUCTED STEP P®L DETAIL
W a o STREAM STABILIZATION 4,653 105
0 ` - a ~ ~ 15,774 SF 11,714 SF NTS
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~ C STR TION UEN E: V TATI N MA A M NT N T n ~o
~ iNE ROAD yj REMAIN UNDISTURBED EXCEPT AS NOTED BELOW:
IEpD M i, OBTAIN ALL NECESSARY PERMITS 1, ZONE 1 OF THE BUFFER SHALL REMAIN UNI N T~ o ~
o ~ ~ 2. INSTALL SILT FENCE AND TREE PROTECTION FENCING A. PRUNING FOREST VEGETATION PROVI TATION PROVIDED THE HEALTH OF .THE VEGETATION IS NOT
~ ~ ~ COMPROMISED. T v ~ 3. INSTALL GRAVEL FILTER AROUND POND OUTLET STRUCTURE o ~
9 Q o N
q 2 ~ 4. CONSTRUCT CONSTRUCTION ACCESS, REMOVE FENCE AS NECESSARY B. REMOVAL OF POISON IVY. o ~ !Y.
v ° 5. DRAIN POND AT RATE SUFFICIENT TO ENSURE NO EROSION DOWNSTREAM, ADD OUTLET
° C. REMOVAL OF UNDERSTORY NUISANCI Z m PROTECTION IF NECESSARY )RY NUISANCE VEGETATION AS DEFINED BY NCDENR. o ° AR
a J o sr~,cK~ 6. BEGIN CLEARING ON INTERIOR POND SLOPES, SEE NOTE 1 2. ZONE 2 OF THE BUFFER MAY BE GRADED f 0 BE GRADED PROVIDED THAT ALL OF THE FOLLOWING CONDITIONS Q°°°°~~~ F ssiQ ° otiy°°o
Z ANp R~q~j ° ° °
7. PUSH SEDIMENT TO ON ORNER OF POND USING SMALL DOZER CAT D3 OR SIMILAR ARE MET; o EC ~ ) sEaL a e
A. ALL DISTURBED AREAS ARE STABILIZ S. REMOVE SEDIMENT FROM POND USING EXCAVATOR (CAT 225 OR SIMILAR) ARE STABILIZED WITH NATURAL VEGETATION WITHIN 15 DAYS OF ~ e °
o LAND DISTURBING ACTIVITY. 0 'ITY, o a° 028942 o. o ti F ~ o
9. DISPOSE OF SEDIMENT IN APPROVED LOCATION E G NG I NEB P
B. DIFFUSE FLOW IS MAINTAINED IN ZC 10. CONSTRUCT STREAM STABILIZATION STRUCTURE TAINED IN ZONE 1 OF THE BUFFER. °°°°~oFR °°°°°°°°RE~~°°°
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N TS 12. REPAIR FENCE T
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o No. Revision Date B Designer Scale °o HCF 1" = 30' % IM f""' A Sheet No.
o Drawn By Date A.E. FINLE%Y'f CA
$ PAP 3-16-10 rK%,jrtjSED Pu"""NN rUNLJ MA INT E N AN C E P LAN ENGINEERS I PLANNERS I SURVEYORS 1
o Checked By Job No. 111 MacKenan Drive Cary, North Carolina 27511 tel: [phone] www.withersravenel.com License No. C-0832
Raleigh Wake Count North Carolina HCF 210005.00 i