20090008 Ver 1_401 Application_20081208

CAROLINA
ECOSYSTEMS, INC.
8208 Brian Ct.; Garner, NC 27529
P:919-606-1065 - F:919-341-4474
December 30, 2008
Mr. James F. Shern
Raleigh Regulatory Field Office
U.S. Army Corps of Engineers
6508 Falls of the Neuse Road, Suite 120
Raleigh, North Carolina 27615

RE: Nationwide Permit 29 Pre-Construction Notification
Villages of Apex / Trackside South
Apex, North Carolina
Dear Mr. Shern;
VU
DFC., Ol/ ?
4ti 4N,-, NR. 2Q U
Osq08
Apex First Development, LLC is proposing to construct a mixed use development called
Villages of Apex (formerly Trackside North and South) in Apex, North Carolina. In support of
this activity, Carolina Ecosystems, Inc. and BBM Associates, Inc. have prepared this Nationwide
Permit 29 Pre-Construction Notification (PCN) for anticipated impacts associated with Trackside
South to wetlands and streams under the jurisdiction of the Section 404 and 401 of the Clean
Water Act. This notification also addresses impacts to the riparian buffers regulated under the
Neuse River Basin: Nutrient Sensitive Waters Management Strategy: Protection and
Maintenance of Existing Riparian Buffers Rule. Included in this submittal are the PCN form,
vicinity and site maps, engineering plans and details, site photographs, and an agent
authorization letter. Additional information supplementing the new PCN form is included in this
cover letter.
This PCN also addresses a NC DWQ Notice of Violation issued on September 15, 2008. This
NOV is for impacts associated with inadvertent clearing of wetlands and intermittent stream
channel initially reported by the Town of Apex. The attached restoration plan addresses these
impacts as discussed via phone with you, and on site with NCDWQ staff. Initial upland
development activities have occurred on the site, and due to a miscommunication regarding the
placement of orange tree-protection fencing the jurisdictional areas associated with Sites 1 and 4
were cleared. In addition, stormwater ponds at Sites 4, 6, and 7 were constructed in Zone 2 of
the riparian buffers (subject to NCDENR Neuse Buffer Rules). The areas required for the
construction of the project are presented in the attached PCN, while those beyond the proposed
impact areas will be restored to pre-development condition in accordance with the attached
restoration plan.
A previous submittal for Trackside North was approved via regulatory review expiration in 2008
and via NC Division of Water Quality Certification 07-1481 on March 28, 2008. While total
Mr. James Shern Page 2 of 2
December 30, 2008
impacts for both Trackside North and South are under the Nationwide Permit thresholds, they are
independent projects as documented in the attached PCN form. Therefore, no compensatory
mitigation is being proposed for Trackside South as it only entails 0.08 acres of permanent
wetland impacts and 28 linear feet of permanent intermittent stream impact.
Wetland and stream impacts associated with the offsite sewer line to the south of the project
(crossing US 64) are based on previous delineations for the Town of Apex in 2005. This
information was field verified by Carolina Ecosystems and the impacts are accurate. They
consist of an expansion of an existing sewer easement to allow for a parallel line to
accommodate the flow from Trackside South.
The impacts presented in the PCN form are labeled as required by the form (W 1, W2; Sl, S2;
B 1, 132 etc). The following table correlates those impact areas to the sites numbered in the
attached engineering plans.
Imnact Site Table

Site Impact
Site Wetland (acres)
Perm. Temp. Impact
Site Stream (feet)
Int. Per. Impact
Site Buffer (sq. ft.)
Zone 1 Zone 2
1 W1
W2 0.020
0.020 S1 23 131
B2 1313
1291 887
544
2 W3 0.063 S2 17 133 1049 738
3 134 46,
4 S3 3 B5 1004 5677
5 B6 1312
6 S4 11 B7 977 3278
7 B8 708 4830
8 S5 17 B9 930 435
Total 0.084 0.020 54 17 7272 17747
0.104 71 25019
The preceding information, along with the enclosed PCN form and associated materials, is
submitted for your review for this project. Five copies are also being sent to the NC DWQ
Wetlands/401 Unit for their review, along with the required $240.00 application fee. We
appreciate your time in reviewing the documentation of this project. Please contact me at your
earliest convenience if you have any questions or require any additional information.
Sincerely,
Carolina Eco stems, Inc.
Philip ay
Senior Environmental Scientist
Cc: Cyndi Karoly, NCDWQ 401 Unit (5 copies)
Mark Gramling, Apex First Development LLC
Alan Manness, P.E., BBM Associates, Inc.
Trackside South / Villages of Apex
Nationwide Permit 29 Pre-Construction Notification
ATTACHMENT LIST
Attachment
1 PCN Form & Agent Authorization
2 Figures
3 Site Photographs
4 Regulatory Correspondence
5 Exhibits (Engineering Plans)
6 Restoration Pan
7 Stormwater Management Plan
Figures
1 Vicinity Map
2 USGS Map
3 Soil Survey
4 Site Overview
Attachment 5 Engineering Plans
1 Pre & Post-Development (2 sheets)
2 Site 1 Overview
3 Site 1 Impacts
4 Sites 2 & 3 Overview
5 Site 2 Impacts
6 Site 3 Impacts
7 Site 4 Overview
8 Site 4 Impacts
9 Site 5 Overview
10 Site 5 Impacts
11 Site 6 Overview
12 Site 6 Impacts
13 Site 7 Overview
14 Site 7 Impacts
15 Site 8 Overview
16 Site 8 Impacts
Attachment 6 Restoration Plans
1 Pre-construction Overall Site Plan
2 Post-construction Overall Site Plan
3 Pre-impact Existing Conditions
4 Post-impact Existing Conditions
5 Proposed Permanent Conditions
6 Stream Restoration Plan
7 Restoration Profile
8 Riparian Buffer & Wetland Planting Plan
9 Implementation Schedule
ATTACHMENT 1
Pre-Construction Notification Form
05/3012007 12:27 19193627822 APEXELECTRIC PAGE 03/03
ANENT AUTIRORIUnON
May 24, 2007
To Whom It May Concern;
This letter authorizes Carolina Ecosystems, Inc. to act as authoriz td agent on the behalf
of Am First 1d2ownt.. LLC for the delineation of jurisdlc tional art at including
wetlands, streams, and riparian buffers, and Clean Water Act Sed on 404/401 permitting
of the project located on o h Samna Street and Lama )MUM gold,
so-Ma-gel-UN ¢4Ia Anea NC.
Partner J
Apex Fir Development, LLC
733 Center Street
Apex NC 27502
-0008 711A

Office Use Only:
Corps action ID no.
DWQ project no.
Form Version 1.3 Dec 10 2008
Pre-Construction Notification (PCN) Form
A. Applicant Information
1. Processing
1 a. Type(s) of approval sought from the
Corps:
®Section 404 Permit El Section 10 Permit
1 b. Specify Nationwide Permit (NWP) number: 29 or General Permit (GP) number:
1c. Has the NWP or GP number been verified by the Corps? ® Yes ? No
Id. 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
le. 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
If. 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
I g. Is the project located in any of NC's twenty coastal counties. If yes, answer 1 h
below. ? Yes ® No
1 h. Is the project located within a NC DCM Area of Environmental Concern (AEC)? ? Yes ® No
2. Project Information
2a. Name of project: Trackside South Villages of Apex)
2b. County: Wake
2c. Nearest municipality / town: Apex
2d. Subdivision name: Villages of Apex
2e. NCOOT only, T.I.P. or state
project no: n1a
3. Owner Information
3a. Name(s) on Recorded Deed: Apex First Development
3b. Deed Book and Page No. 0742 - 15
3c. Responsible Party (for LLC if
applicable): Mark Grambling
3d. Street address: P.O. Box 1197
3e. City, state, zip: Apex, NC 27502
3f. Telephone no.: [phone]
3g. Fax no.:
3h. Email address: markgafd(c7aoLcom
Page 1 of 12
PCN Form - Version 1.3 December 10, 2008 Version
4. Applicant Information (if different from owner)
4a. Applicant is: ? Agent ? Other, specify:
4b. Name:
4c. Business name
(if applicable):
4d. Street address:
4e. City, state, zip:
4f. Telephone no.:
4g. Fax no.:
4h. Email address:
5. AgentlConsultant Information (if applicable)
5a. Name: Phil May
5b. Business name
(if applicable): Carolina Ecosystems, Inc.
5c. Street address: 8208 Brian Court
5d. City, state, zip: Garner, NC 27529
5e. Telephone no.: [phone]
5f. Fax no.: [phone]
5g. Email address: phil.maV(Wcarolinaeco.com
Page 2 of 12
B. Project Information and Prior Project History
1. Property Identification
1 a. Property identification no. (tax PIN or parcel ID): 0742631492
1b. Site coordinates (in decimal degrees): Latitude: 35.736888 Longitude: - 78.845056
(DD.DDDDDD) (-DD.DDDDDD)
1c. Property size: 50.8 acres total (26.9 in Phase 1)
2. Surface Waters
2a. Name of nearest body of water (stream, river, etc.) to UT Williams Creek & UT Swift Creek
proposed project:
2b. Water Quality Classification of nearest receiving water: WSlll-NSW
2c. River basin: Neuse (HUC 03020201)
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:
Existing site is currently old farm fields and forest land. Some work on the upland portions of the project have
begun (see cover letter for details). The surrounding land use is a mix of residential, commercial, Industrial, and
institutional (Apex government buildings).
3b. List the total estimated acreage of all existing wetlands on the property:
2.28
3c. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property:
1398
3d. Explain the purpose of the proposed project:
The purpose of the proposed work is to widen two existing roadways (Hunter St and Laura Duncan Rd) to
provide additional traffic flow (turn lanes) and on-site parking (Hunter Street) adjacent to this high density
development The project will help to meet the high demand for residential and commercial space in and
around the town of Apex, while helping to limit to the suburban sprawl that is occurring in the
area. Additional minor impacts are related to two sewer line crossings that will service the project and re-
grading of outer edges of riparian buffers to allow for stormwater management
3e. Describe the overall project in detail, including the type of equipment to be used:
The Villages of Apex project is a multi-use infill development consisting of residential single and multi-
family homes, townhomes, commercial buildings, office buildings, as well as land donated for a park and a
private elementary school. The initial phase of the project in the north section (formerly Trackside North)
was permitted in 2008, and this project is the southern section of the residential and commercial
development. This project has independent utility from the north section. Trackside South was purchased
at a different time from the North (see DWQ buffer approvals), does not connect except through the
proposed Apex Peakway public thoroughfare, and has no utility interconnection. The development has
been combined with Trackside North into the Villages of Apex to provide a master planned approach to the
inflil development of downtown Apex.
The proposed impacts have been minimized to the greatest practical extent as described below. The site
contains two streams, headwaters of Swift Creek (southeast portion of the site near Hunter Street) and
Williams Creek (northern portion of the site and off-site sewer) The location of these two drainages (with
wetlands and intermittent streams) on site allowed the designers to avoid new road crossings, but these
drainage locations also required sewer crossing impacts to tie into the existing Town system. Upsizing of
the existing Town infrastructure to the north of the project requires a parallel line to be constructed from
the interconnection with Trackside North then crossing US 64 to de into the Town system. Construction
will be accomplished using typical equipment including excavators, backhoes, pans, and dumptrucks.
Additional equipment may be used as required.
Page 3 of 12
PCN Form - Version 1.3 December 10, 2008 Version
B. Project Information and Prior Project History
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: JD submitted in 2007 with Trackside North.
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: Carolina Ecosystems
Name (if known): Phil May Other:
4d. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation.
Corps determination expected with this application (field verged 07/24(2007); DWQ verifications (Trackside
North 3114(05 # NBRRO 05-064 b IPRRO 05.003; Trackside South 9/7/07 #EXP 07-1481)
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.
Trackside North 401 Certification and Buffer Authorization was issued on 5/28/08 (07-1481 Ver 3). USACE 404
authorization for Trackside North was granted via regulatory review expiration.
6. Future Project Plans
6a. Is this a phased project? ® Yes ? No
6b. If yes, explain.
Trackside North, the Town Park, and Thales Academy are all contained within the Villages of Apex along with
Trackside South. However, Trackside South is separated from these projects by an active railroad and the
proposed Apex Peakway. The property was purchased separately from Trackside North by and then became a
part of the overall Villages of Apex plan subsequently. The separate DWQ verification dates (2005 and 2007) are
evidence of this. In addition, the Trackside South project does not share utilities with the other projects and has
no direct connection except via the Apex Peakway, a proposed public thoroughfare.
Initial development will occur in Phase I and consist primarily of townhomes while later phases will include
potential commerciaUretail areas. These later phases have no proposed impacts and will be permitted
(including stormwater management approvals) through the Town of Apex.
Page 4 of 12
C. Proposed Impacts Inventory
1. Impacts Summary
1 a. 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 Sewer crossing Headwater ® Yes
? No ® Corps
? DWQ 0.02
W2 ? P ®T Sewer crossing Headwater ® Yes
? No ® Corps
? DWQ 0.02
W3 ®P ? T Sewer crossing Headwater ® Yes
? No ® Corps
? DWQ 0.06
W4 ? PEI T ? Yes
? No ? Corps
? DWQ
W5 ? P ? T ? Yes ? Corps
? No ? DWQ
W6 ? P ? T ? Yes ? Corps
? No ? DWQ
2g. Total wetland impacts 0.10
2h. Comments: Permanent impacts (0.08 ac) associated with the sewer crossings are those within the required
maintenance easement for the Town of Apex. Temporary construction access easement will be revegetated as
described in the attached restoration plan. See attached Impact table for correlation of impact sites to engineering
plan sites.
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 - (PER) or (Corps - 404, 10 stream length
Permanent (P) or intermittent DWQ - non-404, width (linear
Temporary (T) (INT)? other) (feet) feet)
S1 ? P ®T Sewer crossing UT1 Swift Cr. ? PER
® INT ® Corps
? DWQ 21 23'
S2 ? P ® T Sewer crossing UT1 Williams Cr. ® PER
? INT ® Corps
? DWQ 4' 17'
S3 ? P ®T Level spreader
high flow bypass UT1 Swift Cr. ? PER
® INT ® Corps
? DWQ 21 30
S4 ® P ? T Road widening UT1 Swift Cr. ? PER
® INT ® Corps
? DWQ 31 11'
S5 ®P ? T Road widening UT1 Swift Cr. ? PER
® INT ® Corps
? DWQ 21 17'
3h. Total stream and tributary impacts 71'
3i. Comments: Sewer crossing impacts will be temporary in nature and require bank stabilization for construction
access. Road widening Involves extension of existing culverts to provide turn lanes for the project and on-site
parking on Hunter Street. See attached impact table for correlation of impact sites to engineering plan sites.
Page 5 of 12
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 individual) list all open water impacts below.
4a.
Open water
impact number -
Permanent (P) or
Temporary T 4b.
Name of waterbody
(if applicable) 4c.

Type of impact 4d.

Waterbody type 4e.

Area of impact (acres)
01 ?P?T
02 ?P?T
03 ?P?T
04 ?P?T
0. Total open water impacts 0
4g. Comments:
5. Pond or Lake Construction
If pond or lake construction proposed, then complete the chart below.
5a.

Pond ID 5b.

Proposed use or purpose 5c.
Wetland Impacts (acres) 5d.
Stream Impacts (feet) 5e.
Upland
(acres)
number of pond
Flooded
Filled
Excavated
Flooded
Filled
Excavated
Flooded
P1
P2
5f. 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 12
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) or impact Stream name mitigation (square feet) (square feet)
Temporary required?
61 ®P ? T Non-electric
Utility UT1 Swift Cr. ? Yes
® No 1313 887

62 ? P ®T Non-electric
Utility
UT1 Swift Cr. ? Yes
® No
1291
544

63 ®P ? T Non-electric
Utility
UT1 Swift Cr. ? Yes
® No
1049
738

64 ®P ? T Non-electric UT1 Williams C r.
r. Yes
0
46
utility ® No
Grading
B5 ®P ? T (Zone 2) &
high flow UT1 Swift Cr. ? Yes
® No 1004 5677
bypass
B6 ® P ? T (ZGrading one 2) UT1 Swift Cr. El Ye
® Nos 0 1312
Grading
B7 ® P ? T (Zone 2) &
road UT1 Swift Cr. ? Yes
® No 977 3278
crossing
Grading
B8 ®P ? T (Z

one 2)
high flow

UT1 Williams Cr.

® Nos

708

4830
bypass
B9 ®P ? T Road
i UT1 Swift Cr. ? Yes 930 435
cross
ng ® No
6h. Total buffer impacts 7272 17747
6i. Comments: The high flow bypass associated with each level spreader is not listed in the Neuse Rule table of
uses, but is considered exempt from mitigation requirements based on previous permit experience and
conversations with DWQ staff. See attached impact table for correlation of impact sites to engineering plan sites.
Page 7 of 12
D. Impact Justification and Mitigation
1. Avoidance and Minimization
1a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project.
Road widening has been designed with 2:1 side slopes and minimum width necessary for required turn lanes to
allow traffic flow and on-site parking (matching the existing on-site parking along Hunter Street). Due to the
existing locations of these roads, the same stream (UT1 to Swift Creek) must be impacted at the upstream and
downstream limits of the property to allow for turn lanes. Shifting the roads to the opposite sides would not
reduce impacts and is prevented by existing infrastructure (stormwater ponds for the Town of Apex and a
commercial area). Sewer crossings have been designed as perpendicular aerial crossings or will be returned to
grade. No new stream crossings are proposed for transportation reasons, and only two sewedutility crossings
for gravity flow connection to the existing Apex sewer system. The northern crossing is required to connect to
the sewer system adjacent to Laura Duncan Road. The southern (off site) crossing is a parallel line expanding
on an existing Town sewer easement through already disturbed jurisdictional areas, therefore greatly reducing
impacts. The regrading of Zone 2 buffers allows for larger stormwater ponds required due to the high density of
the development and the local zoning special conditions requiring 25-year stormwater control (versus standard
10-year requirements).
1b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques.
Construction will be performed according to all NWP conditions. Prior to the start of construction, a meeting
will be held outlining any areas not to be impacted. Tree fence will be installed prior to any additional clearing
activities and the site superintendent will monitor the protected areas so that protection fencing will remain in
working order and that no clearing activities will occur. Sediment and erosion control measures will be put in
place prior to construction activities. Site inspections by Town of Apex staff are performed to review sediment
and erosion control, protection fencing and other measures. Due to the proximity of the site to Town
government complex, these inspections are performed frequently.
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
El Payment to in-lieu fee program
project?
? Permittee Responsible Mitigation
3. Complete if Using a Mitigation Bank
3a. Name of Mitigation Bank:
3b. Credits Purchased (attach receipt and letter) Type _7 Quantity
Page 8 of 12
PCN Form - Version 1.3 December 10, 2008 Version
3c. Comments:
4. Complete if Making a Payment to In4leu 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.
No mitigation is required but a restoration plan has been provided for inadvertent impacts that have occurred
on the site. Please see cover letter for additional details.
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: Buffer restoration on the site is discussed in the attached cover letter for the areas of inadvertent
impact that occurred in August 2008. A full restoration plan for this work is provided in the attached plan
set
Page 9 of 12
E. Stormwater Management and Diffuse Flow Plan (required by DWQ)
1. Diffuse Flow Plan
1 a. Does the project include or is it adjacent to protected riparian buffers identified ® Yes ? No
within one of the NC Riparian Buffer Protection Rules?
1 b. If yes, then is a diffuse flow plan included? If no, explain why.
Comments: Diffuse flow plan is included along with Town of Apex ® Yes ? No
approvals.
2. Stonmwater Management Plan
2a. What is the overall percent imperviousness of this project? 45 % (Phase I)
2b. Does this project require a Stormwater Management Plan? ® Yes ? No
2c. If this project DOES NOT require a Stormwater Management Plan, explain why:
2d. If this project DOES require a Stormwater Management Plan, then provide a brief, narrative description of the plan:
Stor mwater management is provided via constructed wetlands and wet detention ponds In combination with
level spreaders. The plan has been submitted and approved by the Town of Apex under their delegated
authority.
® 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? Town of Apex
® 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

4a. Which of the following state-implemented stormwater management programs apply ? HQW
? 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 10 of 12
PCN Form - Version 1.3 December 10, 2008 Version
F. Supplementary Information
1. Environmental Documentation (DWQ Requirement)
la. 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
letter.) ? Yes ? No
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): In August 2007,
the Town of Apex documented wetland, stream, and buffer violations near Laura Duncan Road. In subsequent
investigation and on-site meetings with DWQ and the contractor, it was discovered that inadvertent clearing of a
sewer crossing (UT1 to Swift Creek) and an area below the crossing occurred due to a miscommunication regarding
protection fencing placement (a section of fencing was not installed). USACE and NCDWQ were notified of the
activity. A meeting on site was held with Lauren Witherspoon and Amy Chapman to review and discuss the impacts,
and an NOV was issued on 9115108 (NOV-2008-PC-0659). The attached restoration plan provides for the replacement
of the wetland, stream, and buffer impacts that are not within the proposed sewer crossing area presented In this
permit application.
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.
The project is designed to be an in-rill development with a goal of reducing development pressure in the outer
portions of the Apex jurisdiction. The surrounding area is already a highly developed mix of residential,
commercial, and Industrial buildings.
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.
Wastewater from this project will be transported via the proposed outfall lines to the Town of Apex wastewater
treatment plant: The Town has accepted the proposed outflow in its existing capacity
and the sewer capacity
,
fees have been paid which reserves this capacity for the project.
Page 11 of 12
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 ? Yes ® No
habitat?
5b. Have you checked with the USFWS concerning Endangered Species Act ? Yes No
impacts?
? Raleigh
5c. If yes, indicate the USFWS Feld Office you have contacted. ? Asheville
5d. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical
Habitat?
USFNS & NCNHP County species lists, NCNHP element occurrence database, NCNHP on-line mapping (for
more recent updates), followed by site review by qualified biologists (Carolina Ecosystems). No potential habitat
was found on site with the exception of Rhus michauxii along the disturbed forest edges.. A survey for this
species was performed in August 2007. No individuals were found. The site does not have streams of sufficient
size to support populations of aquatic species.
6. Essential Fish Habitat (Corps Requirement)
6a. Wit 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?
Interactive mapper cited in PCN help documentation.
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 ? Yes ® No
status (e.g., National Historic Trust designation or properties significant in
North Carolina history and archaeology)?
7b. What data sources did you use to determine whether your site would impact historic or archeological resources?
Lack of on-site structures and no listings in the National Register. No previous comments were received from
NC SHPO during permitting of the Trackside North project.
& 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? Wake County GIS floodplain mapping
?"Jc
'4
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I
"
X
- 'A lv --
X
Applicant/Agent's Printed Name ApplicantiAgenfs Signature Date
(Agents signature is valid only if an authorization le the applicant
is roviddd.
Page 12 of 12
ATTACHMENT 2
Figures

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APEX

4000
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I Figure 1: Vicinity Map
Villages of Apex/Trackside South
Apex, NC
OZ f4000 Feet
- 6208 Brian Court; Gamer, NC 27529
0: 919-606-1065; F: 919.341-4474
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Villages of Apex[Trackside South
Apex, NC
CAROLINA 8208 Brian Court; Gamer, NC 27529
ECOSYSTEMS, INC, 0:919-606-1065;F:919-341-4474

I
Neuse Buffers Stream - Intermittent = -_ - Stream - Perennial Wetland
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r� `' :. ,' e., 3r Trackside SouthNillages of Apex
t! ] Wake County, NC
a' CAROi_iNA 8208 Brian Court; Garner, NC 27529
iLL .� ECOSYSTEMS, INC. O: 919-606-1065; F: 919-341-4474

ATTACHMENT 3
Site Photographs
Trackside South PCN
Site Photographs

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Photo l: Looking upstream
Page 1
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`:
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UT 1 to Swift Creek and associated headwater wetland after recent heavy
rains.

74
Photo 2: UTl to Swift Creek wetland section without stream channel (no recent rain).
Trackside South PCN
Site Photographs

Page 2
"4'°e?; yR 1 m - `
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--?M
Photo 3: Impacted area looking northeast from Laura Duncan Road. Restoration plan addresses this area
along with Site 1 sewer crossing impacts.

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Photo 4: Zone 2 grading area (Site 4) showing outlet where high flow bypass is to be installed.
ATTACHMENT 4
Regulatory Correspondence
r?10! ?Ar?nQ Michael F. Easley, Govemor
G. Ross Jr., secreta
North Carolina Department of Envlrottmilen and
Natural Resources
Colleen H. Sullins, Director
a Division of Water Quality
September 15, 2008
-CERTI>N D MAIL # 2006 2150 0000 3312 185
RETURN MCM REQUESTED
Apex First Development, LLC
Attn: Mark Gramling
P.O. Box 1197
Apex, NC 27502
Subject: NOTICE OF VIOLATION
NOTICE OF INTENT TO ENFORCE
NOV-2008-PC-0659
Trackslde South Phase 1
35.75043 N, -78.84132W
Removal of Best Use .
Riparian Buffer Violation
Wetland Standards Violation
Wake County
Dear Sir:
On 29 August 2008, Lauren Witherspoon from the Raleigh Regional Officc of the
Division of Water Quality (DWQ) and Amy Chapman of the Central Office of DWQ
conducted a site inspection for a tract of between Laura. Duncan Road and Salem Street
north of Hunter Street in Apex in Wake County, North Carolina. The stream on the site
is au unnamed tributary (UT) to Williams Creek, Class WS-111 NSW waters, in the Neuse
Rivl rBitsiti... ..
During the site inspection, the following observations were made:
• Grading within the UT to Williams Creek had impacted approximately 130 linear
feet of the stream channel.
• Removal of vegetation, placement of earthen fill, and grading had impacted
approximately 8,300 square feet of Zone I and Zone 2 of the Neuse Riparian
Buffer along tlae UT to Williams Creek. Diffuse flow was not maintained
throughout the buffer.
• Grading and grubbing had impacted approximately 600 square feet of wetland ??°? aro?na
area. ?t'a§aro y
North CsroNnn Division of Water Quality Raleigh Regipnni Officc Surthea Writer Protection Phano (919) 7914200 Customer Setvica
lntcrnet! h2o.enr.sfate.nc.u9 1628 Mail Swim Center Raleigh, NC 27699-1628 FAX (919) $71.471 R 1-877623-67411
An Equal Opportunfty/AffIrmallve Action Employer - 80% Re0y0ledl10% Post Consumer Paper
Page 2
Trackside South Phase I
Wake County
As a result of the site inspection, the following violations, detailed below, are noted:
(1) Removal of Best Use
(2) Neuse Riparian Buffer Violation
(3) Wetland Standards Violation
Item I. Removal of Best Use
The grading in the UT to Williams Creek represents a water quality standard violation
defined as removal of best usage.
Specifically.,15A, NCAC 213.0211 (2) requires that "The waters shall be suitable for
aquatic life propagation and maintenance of biological integrity, wildlife, secondary
recreation, and agriculture; sources of water pollution which preclude any of these uses
on either a short-term or long-term basis." Please see the Requested Response section for
details concerniatg how to achieve compliance at the site.
Item 11. Neuse Riparian Buffer Violation
The Neuse River Basin is subject to the riparian (streamside) buffer rules covered under
North Carolina Tide 15A NCAC 02B .0233. The purpose of these rules is to protect and
preserve riparian buffers in the Neuse River Basin that help protect surface water by
removing nutrients from overland flow. The North Carolina buffer rules apply to areas
immediately adjacent to surface waters which includes intermittent streams, pexennial
streams, lakes, ponds, and estuaries.
The protected riparian buffer has two zones: Zone 1 is measured ftm the stream bank
landward for 30 feet. lone 2 is measured an additional 20 feet landward from the outer
edge of zone 1. Both Zone 1 and Zone 2 consist of a stable vegetated area that is
undisturbed except for activities aid uses provided for in item (6) of 15.A. NCAC 213
.0233(4).
Neuse Buffer - Diff= Flow - 15A NCAC 02B .0233 (5) (a) & (b) requires that:
Diffuse flow of runoff shall be maintained in the riparian buffer by dispersing
concentrated flow and reestablishing vegetation.
(a) Concentrated runoff from new ditches or manmade conveyances shall be
converted to diffuse -flow before the runoff enters Zone 2 of the riparian buffer.
(b) Periodic corrective action to restore diffuse flow shall be taken if necessary to
impede the formation of erosion gullies.
Item In. Wetland Standards Violation
15A NCAC 02B.0231 (b)
(1) Liquids, fill or other solids or dissolved gases may not be present in amounts which
may cause adverse impacts on existing wetland uses;
Page 3
Trackside South Phase 1
Wake County
(S) Hydrological conditions necessary to support the biological and physical
characteristics naturally present in wetlands shall be protected to prevent adverse impacts
on:
(C) The chemical, nutrient and dissolved oxygen regime of the wetland;
(D) The moveruent of aquatic fauna;
(li) Water levels or elevations.
Required Response
You are directed to respond to this letter in waiting within 30 days of receipt. You are
also encouraged to secure a consultant who specializes in buffer, stream, and wetland
restoration to assist you with the development and submittal of the following:
1. Documentation depicting all jwisdictional features (e.g. streams, wetlands, and
buffets), A description and quantification of the impacts to those jurisdictional
features and your plans to avoid further riparian, wetland, and stream impacts on
the site.
2. A Riparian Buff
.at Restoration plan to this office for review and approval. Please
clearly indicate the site conditions as they currently exist and how you propose to
restore the riparian buffers.
a. Riparian Zone planting - please submit a Restoration Plan to this office
for review and approval. This plan must be developed to ensure that at
least two native tree species are planted at a density sufficient to provide
320 trees/acre at maturity. This density is usually achieved by planting
approximately 436 trees/acre on a 10 ft. x 10 ft. grid or 681 treestacre on
an. 8 ft. x 8 ft. grid. 1 ase a Guide ' y or RIffido
u ar
e at' (-October 92094-11or m. s- in d o f ur lan
Lavailable wAkweb a httn•//www neap n?et/news/reg r I; g?fPeyrs.p ,
Be sure to include the types of native woody vegetation selected,
methodology of planting, and a site map indicating the location of the
replanting efforts.
3. Streain Restoration flan - Please explain how you plan to restore the pattern,
profile and dimension of the impacted stream channel. The streambed must be
restored to the original profile and the stream banks must be stabilized.
4. Satisfactory wetland restoration requires the replanting of at least 2 native
hardwood wetland species and th.e maintenance of a stdm density/survivorship of
at least 320 trees per acre at the end of 3 years. Also, this plan will require an
herbaceous wetland seed mix for all wetlands that are disturbed.
5. Include a detailed implementation schedule with dates explaining when the
buffer, wetland, and stream restoration will be accomplished. This schedule
should include a thtee-year monitoring plan to ensure that the riparian buffer and
stream are .restored. It is important that you adhere to this new plan once
Page 4
Traelcside South Phase I
Wake County
stream are restored. It is important that you adhere to this new plan once
approved by DWQ and if you make any modifications to it, that DWQ approve
them.
6. It is required that you contact the United States Army Corps of Engineers (COE)
to detemnige if a 404 Permit is necessary.for these restoration activities.
7. Permit Application - if you wish to apply for approval for any impacts to remain
ill place, you must contact the COE for information ou the type(s) of permit
required. Depending on the type of permits COE requires, application for a 401
Water Quality Certification (WQC) to DWQ will also be required. When
applying for a 401 WQC, please include a restoration plan (if necessary) for
temporarily impacted jurisdictional areas.
Finally, please explain how you propose to prevent these probteaaas from reoccurring
on future projects. Sabm t alaugaw to p;

Lauren Witherspoon
DWQ Raleigh Regional Office
3800 Barrett Drive
Raleigh, NC 27609
Thank you for your attention to this matter. This office requires that the violations, as
detalled above, be abated immediately. These violations and any future violations
are subject to a civil penalty assessment of up to $25,000.00 per day for each
violation. Should you have any questions regarding these matters, please contact Lauren
Witherspoon at [phone].
Sin erely, r
R /t i? ? ,,?rr7 !
Dannyth
Regional Supervisor
Sul-face Water Protection Section
cc: NPs Assistance and Compliance Oversight Unit
DWQ Central Files
Cyndi Karoli - 401 Overaight and Express Permits Unit
Amy Chapman - 401 Oversight and Express Permits Unit
Jamie Shern - USAGE Raleigh Field Oft'ice
RRO - Water Quality Files
n r
J `iii? "r
Apex First Development, I.1-C
Vtn: Mr Mark Gramling
11.0. fox 1197
;Npcx, Nth 2's02
'1,,,tth t.'andma ;?.;:anmcii of !:nv ronn:cnt md NatuiAI Kcseia, cs
Septernbi:r 2007
rdren Ii '-Ihi,,, D,,o t.,r
I)wi-i.,nail .itrt C:i,.i*.
DWQ FXPN 07-1481
Wake County
Subject Property: Irackside [Village, of'Apex)
On-Site Determination for Applicability to the Neuse Riparian Area Protection Rules (ISA NCAC 28
.0233)-FXPRFSS REN'IEW PROC:RAM
On September 4, 2007, at the request of Mr. Phil %lay of Carolina Ecos)stenis, an on-site determination was
conducted to review two stream features located on the subject property fir applicability to the Neuse Buffer
Rules (15A NC AC 213.0233), fhe features arclahclc(las "A" and "B" on the attached map, initialed by I_ia
\11%.ott on September 7, 2007. 1 lie Division of Water Quality (DWO) has determined that the ti)llovving:
• f=eature "A " i5 Subject to the Neuse Buffer Rule at the flag labeled "A 1 •". Ilse feature [s an Intermittent
stream at that ligation.
• I•eature 'B " is vubjert to the A'euw Buffer Rule from the property boundary at I funict Street to the Ilag
labeled 111 determined to be an [solatcd intermittent stream). '1'}!e Mature hecorttes in i::tcrniittent
stream tgain at the flag lal-icled ..ti'"
Ud[tionally, Juno;; the site .[sit an isolated wetland tine .',as held verified hN Lia Myt)tt at the location ofticold
pond hcd that is depicted ;is the northeinmo,t pcntd on the proper[} in the A'Ae County Soil tiurvcy.
i his on-site determination shall expire live (i) years Irt,n( the :.late of this !;;tier. I.;uufuvvners or affected part[es
:hat Jispute it determination made by the DWI ) that a surface water exists and that it is tiuhjcct to the huffer rule
MAN rcyiicA I determination by the Director A requcit for a deternmw(ion by the Director :hall be Ieferrrd to the
D,rcc,Ior in corning cio (}ndi Karo!y, I)WO •101 c hers4,1, Fvpress Review Permitting !;nit. 2321 Crabtree lilvd.,
I2alcitth, NC 'f)IW-2",h0. You malt act ,v Ihin hU JaN's ol'the date that you receive this 1c,,[cr Applic rots are
hcre•hv notified that the 60 day t.itutorN appeal time does nr,t :tart mild the I:lwed party (including downstream
and uliac:cnt 1anduvvnc:rs1i is no(ilicd of this decision, Ihis ;ieic•rn:in,!ti-) is linal and 1,MdW,, unless }ou :A till, a
arrtI int; a ithIn h0 davs.
I his later t„t!c iti[dressrs the applicahihty to the hurler riles oCthc ;trcam tc;ttures lkiM abirve and goes not
IF, pt rlVC any act iv it} ,s[th In the buffers or address :'ranrtes (fiat were nc it A)ser% ed during, the ,itc \ is it. Nor JG,?s
..,s letter approve any activity v. ithin NVatcrs of the I:rtitc•d States or Neater, of the !talc. It ou [:ace any
k;iic Lions. please acirtact Litt MN tilt at 919 ?3 i.91O"
'N n,xrcly

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('c,leen I1. Sullins. hitec i?r
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lttachments: MRCS Suit Survev Map. IJSGS Topo Qtsd Map
cc: DWQ Raleigh Regional Office
I- i le Copy
Central Files
Phil Mav, Carolina Ecosystems, Inc., 8208 Brian Court, Garner. 4C 27729
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ATTACHMENT 5
Exhibits (Engineering Plans)
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ATTACHMENT 6
Restoration Plan
Channel Report
Hydraflow Express Extension for AutoCAD® Civil 3D® 2009 by Autodesk, Inc. Tuesday, Dec 30 2008
Trackside South NOV Stream Restoration Section (1-YR STORM)
User-defined Highlighted
Invert Elev (ft) = 1.00 Depth (ft) = 1.16
Slope (%) = 0.98 Q (cfs) = 12.29
N-Value = 0.048 Area (sqft) = 9.84
Velocity (ft/s) = 1.25
Calculations Wetted Perim (ft) = 37.48
Compute by: Known Q Crit Depth, Yc (ft) = 0.81
Known Q (cfs) = 12.29 Top Width (ft) = 36.96
EGL (ft) = 1.18
(Sta, El, n)-(Sta, El, n)...
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-(54.00, 5.00, 0.050)
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Channel Report
Hydraflow Express Extension for AutoCAD® Civil 3D® 2009 by Autodesk, Inc. Tuesday, Dec 30 2008
Trackside South NOV Stream Restoration Section (2-YR STORM)
User-defined Highlighted
Invert Elev (ft) = 1.00 Depth (ft) = 1.19
Slope (%) = 0.98 Q (cfs) = 14.40
N-Value = 0.048 Area (sqft) = 10.95
Velocity (ft/s) = 1.32
Calculations Wetted Perim (ft) = 37.67
Compute by: Known Q Crit Depth, Yc (ft) = 0.88
Known Q (cfs) = 14.40 Top Width (ft) = 37.14
EGL (ft) = 1.22
(Sta, El, n)-(Sta, El, n)...
(0.00, 5.00)-(9.00, 2.00, 0.050)-(24.00, 2.00, 0.050)-(26.00, 1.00, 0.035)-(28.00, 1.00, 0.035)-(30.00, 2.00, 0.035)-(45.00, 2.00, 0.050)
-(54.00, 5.00, 0.050)
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Channel Report
Hydraflow Express Extension for AUtoCAD® Civil 3D® 2009 by Autodesk, Inc. Tuesday, Dec 30 2008
Trackside South NOV Stream Restoration Sec tion (10-YR STORM)
User-defined Highlighted
Invert Elev (ft) = 1.00 Depth (ft) = 1.24
Slope (%) = 0.98 Q (cfs) = 18.55
N-Value = 0.048 Area (sqft) = 12.81
Velocity (ft/s) = 1.45
Calculations Wetted Perim (ft) = 37.99
Compute by: Known Q Crit Depth, Yc (ft) = 1.10
Known Q (cfs) = 18.55 Top Width (ft) = 37.44
EGL (ft) = 1.27
(Sta, El, n)-(Sta, El, n)...
(0.00, 5.00)-(9.00, 2.00, 0.050)-(24.00, 2.00, 0.050)-(26.00, 1.00, 0.035)-(28.00, 1.00, 0.035)-(30.00, 2.00, 0.035)-(45.00, 2.0 0, 0.050)
-(54.00, 5.00, 0.050)
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ATTACHMENT 7
Stormwater Management Plan

III:REQUIREDITEMS'CHECKLIST
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to
indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a
requirement has not been met, attach justification.
Pagel Plan
Initials Sheet No.
JEA C3.1, C3.2 1. Plans (1" - 50' or larger) of the entire site showing:
Design at ultimate build-out,

? - Off-site drainage (if applicable),
- Delineated drainage basins (include Rational C coefficient per basin),
Forebay (if applicable),
High flow bypass system,
Maintenance access,
Proposed drainage easement and public right of way (ROW), and
Boundaries of drainage easement.
JEA C3.12,C3.16 2. Plan details (1" = 30' or larger) for the level spreader showing:
- Forebay (if applicable),
- High flow bypass system,
- One foot topo lines between the level lip and top of stream bank,
- Proposed drainage easement, and
- Design at ultimate build-out.
JEA C7.6 3. Section view of the level spreader (1" = 20' or larger) showing:
Underdrain system (if applicable),
Level lip,
Upslope channel, and
Downslope filter fabric.
JEA NA 4. A date-stamped photograph of the filter strip that clearly shows the type of vegetation that is present.
JEA C3.5-3.8 5. A construction sequence that shows how the level spreader will be protected from sediment until the entire
0-113. I l drainage area is stabilized.
JEA C7.6 6. The supporting calculations.
JEA k" 7. A copy of the signed and notarized operation and maintenance (0&M) agreement.
JEA NA 8. A copy of the deed restrictions (if required).
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5
Part III, page 1 of 1
O?0? W A TF9oG
J Y
NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
LEVEL SPREADER, FILTER STRIP AND RESTORED RIPARIAN BUFFER SUPPLEMENT
This form must be completely filled out, printed and submitted.
DO NOT FORGET TO ATTACH THE REQUIRED ITEMS CHECKLIST AND ALL REQUIRED ITEMS (NEXT WORKSHEET)!
L PROJECT. INFORMATION
Project name VILLAGES OF APEX- SOUTH VILLAGE
Contact name JAMES ALSBROOK
Phone number 919-833-7336
Date August 18, 2008
Drainage area number 1
111. DESIGN INFORMATION
For Level Spreaders Receiving Flow From a BMP
Type of BMP WET POND
Drawdown flow from the BMP 3.75 cfs
For Level Spreaders Receiving Flow from the Drainage Area Do not complete this section of the worksheet.
Drainage area ft2 Do not complete this section of the worksheet.
Impervious surface area ft2 Do not complete this section of the worksheet.
Percent Impervious % Do not complete this section of the worksheet.
Rational C coefficient Do not complete this section of the worksheet.
Peak flow from the 1 in/hr storm cfs Do not complete this section of the worksheet.
Time of concentration min
Rainfall intensity, 10-yr storm in/hr Do not complete this section of the worksheet.
Peak flow from the 10-yr storm cfs Do not complete this section of the worksheet.
Where Does the Level Spreader Discharge?
To a grassed bioretention cell? n (Y or N)
To a mulched bioretention cell? n (Y or N)
To a wetland? y (Y or N) Please complete filter strip characterization below.
To a filter strip or riparian buffer? y (Y or N) Please complete filter strip characterization below.
Other (specify)
Filter Strip or Riparian Buffer Characterization (if applicable)
Width of grass
Width of dense ground cover
Width of wooded vegetation
Total width
Elevation at downslope base of level lip
Elevation at top of bank of the receiving water
Slope (from level lip to to top of bank)
Are any draws present?
Level Spreader Design
Forebay surface area
Feet of level lip needed per cfs
Answer "Y" to one of the following:
Length based on the 1 in/hr storm?
Length based on the 10-yr storm?
Length based on the BMP discharge rate?
Design flow
Is a bypass device provided?
30.00 ft
33.70 ft
0.00 ft
63.70 ft
472.00 fmsl
471.00 fmsl
1.57 % OK
n (Y or N) OK
0.00 sq ft No forebay is needed.
13 ft/cfs
n (Y or N)
in (Y or N)
y (Y or N)
3.75 cfs
y (Y or N) OK
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Parts I. and II. Design Summary, page 1 of 2
Length of the level lip
Are level spreaders in series?
Bypass Channel Design (if applicable)
Does the bypass discharge through a wetland?
Does the channel enter the stream at an angle?
Dimensions of the channel (see diagram below):
M
B
W
y
Peak velocity in the channel during the 10-yr storm
Channel lining material
H
M
50.00 ft
n (Y or N)
#VALUE!
y (Y or N) Redesign channel to discharge to a dissipator pad adjacent to the wetland.
y (Y or N)
3.00 ft
4.00 ft
16.00 ft
2.00 ft
7.36 cfs
PSRM
L
Y
l B 1
M
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Parts I. and II. Design Summary, page 2 of 2
O?O? W ATFRQG
? r
NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
LEVEL SPREADER, FILTER STRIP AND RESTORED RIPARIAN BUFFER SUPPLEMENT
This form must be completely filled out, printed and submitted.
DO NOT FORGET TO ATTACH THE REQUIRED ITEMS CHECKLIST AND ALL REQUIRED ITEMS (NEXT WORKSHEET)!
L PROJECT INFORMATION
Project name VILLAGES OF APEX- SOUTH VILLAGE
Contact name JAMES ALSBROOK
Phone number 919-833-7336
Date August 18, 2008
Drainage area number 2
IL DESIGN INFORMATION
For Level Spreaders Receiving Flow From a BMP
Type of BMP WET POND
Drawdown flow from the BMP 0.75 cfs
For Level Spreaders Receiving Flow from the Drainage Area Do not complete this section of the worksheet.
Drainage area ft2 Do not complete this section of the worksheet.
Impervious surface area ft2 Do not complete this section of the worksheet.
Percent impervious % Do not complete this section of the worksheet.
Rational C coefficient Do not complete this section of the worksheet.
Peak flow from the 1 !n/hr storm cfs Do not complete this section of the worksheet.
Time of concentration min
Rainfall intensity, 10-yr storm in/hr Do not complete this section of the worksheet.
Peak flow from the 10-yr storm cfs Do not complete this section of the worksheet.
Where Does the Level Spreader Discharge ?
To a grassed bioretention cell? N (Y or N)
To a mulched bioretention cell? N (Y or N)
To a wetland? Y (Y or N) Please complete filter strip characterization below.
To a filter strip or riparian buffer? y (Y or N) Please complete filter strip characterization below.
Other (specify)
Filter Strip or Riparian Buffer Characterization (if applicable)
Width of grass 2.00 ft
Width of dense ground cover 28.00 ft
Width of wooded vegetation 0.00 ft
Total width 30.00 ft
Elevation at downslope base of level lip 479.00 fmsl
Elevation at top of bank of the receiving water 478.00 fmsl
Slope (from level lip to to top of bank) 3.33 % OK
Are any draws present? N (Y or N) OK
Level Spreader Design
Forebay surface area
Feet of level lip needed per cfs
Answer "Y" to one of the following:
Length based on the 1 in/hr storm?
Length based on the 10-yr storm?
Length based on the BMP discharge rate?
Design flow
Is a bypass device provided?
0.00 sq ft No forebay is needed.
13 ft/cfs
N (Y or N)
N (Y or N)
Y (Y or N)
0.75 cfs
Y (Y or N) OK
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Parts I. and II. Design Summary, page 1 of 2
Length of the level lip
Are level spreaders in series?
Bypass Channel Design (if applicable)
Does the bypass discharge through a wetland?
Does the channel enter the stream at an angle?
Dimensions of the channel (see diagram below):
M
B
W
y
Peak velocity in the channel during the 10-yr storm
Channel lining material
H
I

- Y
---------
M
15.00 ft
N (Y or N)
#VALUE!
Y (Y or N) Redesign channel to discharge to a dissipater pad adjacent to the wetland.
Y (Y or N)
3.00 ft
2.00 ft
11.00 ft
1.50 ft
2.97 cfs
PSRM
I
1
M
I I
1 B 1
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Parts I. and II. Design Summary, page 2 of 2
At'lAl"
NCDENR
o??p W ATFRQG
r
o <
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
LEVEL SPREADER, FILTER STRIP AND RESTORED RIPARIAN BUFFER SUPPLEMENT
This form must be completely filled out, printed and submitted.
DO NOT FORGET TO ATTACH THE REQUIRED ITEMS CHECKLIST AND ALL REQUIRED ITEMS (NEXT WORKSHEET)!
L: PROJECT INFORMATION ,
Project name VILLAGES OF APEX- SOUTH VILLAGE
Contact name JAMES ALSBROOK
Phone number 919-833-7336
Date August 18, 2008
Drainage area number 3-BUILD OUT
II. DESIGN INFORMATION
For Level Spreaders Receiving Flow From a BMP
Type of BMP NA
Drawdown flow from the BMP cfs
For Level Spreaders Receiving Flow from the Drainage Area
Drainage area 44,410.00 f 2
Impervious surface area 38,943.00 f 2
Percent impervious 87.69 %
Rational C coefficient 0.88
Peak flow from the 1 in/hr storm 0.90 cfs
Time of concentration 5.00 min
Rainfall intensity, 10-yr storm 7.18 in/hr
Peak flow from the 10-yr storm 6.44 cfs
Where Does the Level Spreader Discharge ?
To a grassed bioretention cell? N (Y or N)
To a mulched bioretention cell? N (Y or N)
To a wetland? N (Y or N)
To a filter strip or riparian buffer? Y (Y or N) Please complete filter strip characterization below.
Other (specify)
Filter Strip or Riparian Buffer Characterization (if applicable)
Width of grass 20.00 ft
Width of dense ground cover 30.00 ft
Width of wooded vegetation 0.00 ft
Total width 50.00 ft
Elevation at downslope base of level lip 477.00 fmsl
Elevation at top of bank of the receiving water 474.00 fmsl
Slope (from level lip to to top of bank) 6.00 % OK
Are any draws present? N (Y or N) OK
Level Spreader Design
Forebay surface area 80.00 sq ft OK
Feet of level lip needed per cfs 13 ft/cfs
Answer "Y" to one of the following:
Length based on the 1 in/hr storm? N (Y or N)
Length based on the 10-yr storm? Y (Y or N)
Length based on the BMP discharge rate? N (Y or N)
Design flow 6.40 cfs
Is a bypass device provided? N (Y or N) A bypass device is not needed.
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Parts I. and Il. Design Summary, page 1 of 2
Length of the level lip
Are level spreaders in series?
Bypass Channel Design (if applicable)
Does the bypass discharge through a wetland?
Does the channel enter the stream at an angle?
Dimensions of the channel (see diagram below):
M
B
W
y
Peak velocity in the channel during the 10-yr storm
Channel lining material
85.00 ft Level spreader length OK.
N (Y or N)
(Y or N)
(Y or N)
ft
ft
ft
ft
cfs
Do not complete this section of the worksheet.
Do not complete this section of the worksheet,
Do not complete this section of the worksheet.
Do not complete this section of the worksheet.
Do not complete this section of the worksheet.
Do not complete this section of the worksheet.
Do not complete this section of the worksheet.
Do not complete this section of the worksheet.
Do not complete this section of the worksheet.
t -1

1 y ??
M M

1 B 1
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Parts I. and IL Design Summary, page 2 of 2
AP
C =
9r
?' C A
WET DETENTION BASIN OPERATION & MAINTENANCE
AGREEMENT
I will keep a maintenance record on this BMP. This maintenance record will be kept in a log in a
known, set location. Any deficient BMP elements noted in the inspection will be corrected,
repaired or replaced immediately. These deficiencies can affect the integrity of structures, safety
or the public, and the pollutant removal efficiency of the BMP.
PROJECT: Trackside South - Phase I
RESPONSIBLE PARTY: Apex First Development PHONE # [phone]
CONTACT: Mark Gramling
ADDRESS: P.O. BOX 1197
Apex, NC 27502
NUMBER OF WET DETENTION BASINS: POND 1
A wet detention basin is a stormwater management facility that includes a permanent pool of
water for removing pollutants and additional capacity above the permanent pool for detaining
stormwater runoff. The wet detention basin system is defined as the wet detention basin, outlet
structure, pretreatment including forebays, grassed swales, and the vegetated filter if one is
provided.
The system (check one):
( X )does ( )does not incorporate a vegetated filter at the outlet.
The system (check one):
( )does (X )does not incorporate a pretreatment other than a forebay.
Important inspection and maintenance procedures:
• Immediately after the wet detention basin is established, the plants on the
vegetated shelf and perimeter of the basin should be watered twice weekly if
needed, until the plants become established (commonly six weeks). The watering
should take place on designated days according to the odd/even watering schedule
cited in the Town of Apex Code of Ordinances.
• No portion of the wet detention basin should be fertilized after the first initial
fertilization that is required to establish the plants on the vegetated shelf.
• Stable ground cover should be maintained in the drainage area to reduce the
sediment load to the wet detention basin.
The flushing of the sediment through the emergency drain should be minimized to
the maximum extent practical.
After the wet detention basin is established, I will inspect it once a month and within 24 hours
after every storm event greater than 1.0 inches. Records of inspection and maintenance will be
kept in a known, set location and will be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall be
repaired immediately.
BMP Element Potential Problems Problem Remediation
The entire BMP Trash/debris is present. Remove the trash/debris.
Regrade the soil if necessary to
Areas of bare soil and/or remove the gully and plant a ground
The perimeter of the wet erosive gullies have formed. cover. Water until it is established,
detention basin provide lime and a one-time
fertilizer application.
Vegetation is too short or too Maintain vegetation at a height of
long. approximately six inches.

The pipe is clogged. Unclog the pipe. Dispose of the
sediment off-site.
The pipe is cracked or Replace the pipe.
The inlet device: pipe or otherwise damaged.

swale Regrade the swale if necessary to
Erosion is occurring in the smooth it over and provide erosion
swale. control devices such as reinforced
turf matting or riprap to avoid
future problems with erosion.
Search for the source of the
Sediment has accumulated to sediment and remedy the problem if
a depth greater than the possible. Remove the sediment and
original design depth for dispose of it in a location where it
sediment storage. will not cause impacts to streams or
the BMP.
The forebay Provide additional erosion
Erosion has occurred. protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
Remove the weeds, preferably by
Weeds are present. hand. If pesticide is used, wipe it
on the plants rather than spraying.

The vegetated shelf Best professional practices
show that pruning is needed Prune according to best

to maintain optimal plant professional practices.
2
BMP Element Potential Problems Problem Remediation
health.
Determine the source of the
problem: soils, hydrology, disease,
Plants are dead, diseased, or etc. Remedy the problem and
dying. replace plants. Provide a one-time
fertilizer application to establish
ground cover if a soil test indicates
it is necessary.
Remove the weeds, preferably by
Weeds are present. hand. If pesticide is used, wipe it
on the plants rather than spraying.
Search for the source of the
Sediment has accumulated to sediment and remedy the problem if
a depth greater than the possible. Remove the sediment and
original depth for sediment dispose of it in a location where it
storage. will not cause impacts to streams or
The main treatment area the BMP.
Algal growth covers over Consult a professional to remove
50% of the area. and control algal growth.
Cattails, phragmites or other Remove the plants by wiping them
invasive plants cover 50% of with pesticide (do not spray).
the basin surface.
Shrubs have started to grow Remove shrubs immediately.
on the embankment.
Evidence of muskrat or Use traps to remove muskrats and
beaver activity is present. consult a professional to remove
Th
b
k
t beavers.
e em
an
men A tree has started to grow on Consult a dam safety specialist to
the embankment. remove the tree.
An annual inspection shows Make all needed repairs. Consult a
that the embankment needs professional.
repair.
Clogging has occurred. Clean out the outlet device.
Dispose of the sediment off-site.

The outlet device The outlet device is
damaged. Repair or replace the outlet device.
Erosion or other signs of Contact the Town of Apex Public
damage have occurred in the Works & Utilities Department at
outlet. 249-3427.
The measuring device used to determine the sediment elevation shall be such that it will give an accurate
depth reading and not readily penetrate into accumulated sediments.
When the permanent pool depth reads 470.00' feet in the main pond, the sediment shall be removed to
original design specifications.
When the permanent pool depth reads 470.00' feet in the forebay, the sediment shall be removed to
original design specifications.
BASIN DIAGRAM
ill in the blanks)
Permanent Pool Elevation 472.00'
l 7e, anent ool Vol.
Sediment Removal E 470.00' Volume
- - - - - - - - - - Sediment Removal Elevation 470.00'
min------------ ------
Bottom El. 469.00' iment Stor e Bottom Elevation 469.00' 1-ft in. Sed. Storage
FOREBAY MAIN POND
I acknowledge and agree by my signature below that I am financially responsible for the
performance of the maintenance procedures listed above. I will perform the maintenance as
outlined, as part of the regulations set forth in Section 6.1.12 of the Town of Apex Unified
Development Ordinance.
I understand that this Agreement shall endure to the benefit of my successors in title,
whomsoever they may be in the future. I agree to notify the Town of Apex of any problems with
the BMP or prior to any changes to the BMP or responsible party.
Note: The legally responsible party should not be an HOA unless more than 50% of the lots have
been sold and a resident of the subdivision has been named the president.
Print name: Mark Gramling
Title: Project Manager
Address: P.O. Box 1197 Apex, NC 27502
Phone: [phone]
Signature:
Date: l- 10 G ;
I, _`--J n e7t*l° - 0,W n , a Notary Public for the State of N C, ,
County of do hereby certify that MarK G V"C,m LI nq personally
appeared before me this day of j)e CC'_trY'1 V) .i- , 20 COY and acknowledge the
F-
due execution of the foregoing wet detention basin maintenance requirements. Witness my hand
and official seal,.;
SEAL

My commission expires I D J I -',
6
?P X
z• •?
o ?
9?y CAp'?v
WET DETENTION BASIN OPERATION & MAINTENANCE
AGREEMENT
I will keep a maintenance record on this BMP. This maintenance record will be kept in a log in a
known, set location. Any deficient BMP elements noted in the inspection will be corrected,
repaired or replaced immediately. These deficiencies can affect the integrity of structures, safety
or the public, and the pollutant removal efficiency of the BMP.
PROJECT: Trackside South - Phase I
RESPONSIBLE PARTY: Apex First Development PHONE # [phone]
CONTACT: Mark Gramling
ADDRESS: P.O. BOX 1197
Anex. NC 27502
NUMBER OF WET DETENTION BASINS: POND 2
A wet detention basin is a stormwater management facility that includes a permanent pool of
water for removing pollutants and additional capacity above the permanent pool for detaining
stormwater runoff. The wet detention basin system is defined as the wet detention basin, outlet
structure, pretreatment including forebays, grassed swales, and the vegetated filter if one is
provided.
The system (check one):
( X )does ( )does not incorporate a vegetated filter at the outlet.
The system (check one):
( )does ( X )does not incorporate a pretreatment other than a forebay.
Important inspection and maintenance procedures:
• Immediately after the wet detention basin is established, the plants on the
vegetated shelf and perimeter of the basin should be watered twice weekly if
needed, until the plants become established (commonly six weeks). The watering
should take place on designated days according to the odd/even watering schedule
cited in the Town of Apex Code of Ordinances.
• No portion of the wet detention basin should be fertilized after the first initial
fertilization that is required to establish the plants on the vegetated shelf.
• Stable ground cover should be maintained in the drainage area to reduce the
sediment load to the wet detention basin.
The flushing of the sediment through the emergency drain should be minimized to
the maximum extent practical.
After the wet detention basin is established, I will inspect it once a month and within 24 hours
after every storm event greater than 1.0 inches. Records of inspection and maintenance will be
kept in a known, set location and will be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall be
repaired immediately.
BMP Element Potential Problems Problem Remediation
The entire BMP Trash/debris is present. Remove the trash/debris.
Regrade the soil if necessary to
Areas of bare soil and/or remove the gully and plant a ground
The perimeter of the wet erosive gullies have formed. cover. Water until it is established,
detention basin provide lime and a one-time
fertilizer application.
Vegetation is too short or too Maintain vegetation at a height of
long. approximately six inches.
The pipe is clogged. Unclog the pipe. Dispose of the
sediment off-site.
The pipe is cracked or Replace the pipe.
The inlet device: pipe or otherwise damaged.

swale Regrade the swale if necessary to
Erosion is occurring in the smooth it over and provide erosion
swale. control devices such as reinforced
turf matting or riprap to avoid
future problems with erosion.
Search for the source of the
Sediment has accumulated to sediment and remedy the problem if
a depth greater than the possible. Remove the sediment and
original design depth for dispose of it in a location where it
sediment storage. will not cause impacts to streams or
the BMP.
The forebay Provide additional erosion
Erosion has occurred. protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
Remove the weeds, preferably by
Weeds are present. hand. If pesticide is used, wipe it
on the plants rather than spraying.

The vegetated shelf Best professional practices
show that pruning is needed Prune according to best

to maintain optimal plant professional practices.
2
BMP Element Potential Problems Problem Remediation
health.
Determine the source of the
problem: soils, hydrology, disease,
Plants are dead, diseased, or etc. Remedy the problem and
dying. replace plants. Provide a one-time
fertilizer application to establish
ground cover if a soil test indicates
it is necessary.
Remove the weeds, preferably by
Weeds are present. hand. If pesticide is used, wipe it
on the plants rather than spraying.
Search for the source of the
Sediment has accumulated to sediment and remedy the problem if
a depth greater than the possible. Remove the sediment and
original depth for sediment dispose of it in a location where it
storage. will not cause impacts to streams or
The main treatment area the BMP.
Algal growth covers over Consult a professional to remove
50% of the area. and control algal growth.
Cattails, phragmites or other Remove the plants by wiping them
invasive plants cover 50% of with pesticide (do not spray).
the basin surface.
Shrubs have started to grow Remove shrubs immediately.
on the embankment.
Evidence of muskrat or Use traps to remove muskrats and
beaver activity is present. consult a professional to remove
Th
b
k
t beavers.
e em
an
men A tree has started to grow on Consult a dam safety specialist to
the embankment. remove the tree.
An annual inspection shows Make all needed repairs. Consult a
that the embankment needs
professional.
repair.
Clogging has occurred. Clean out the outlet device.
Dispose of the sediment off-site.

The outlet device The outlet device is
damaged. Repair or replace the outlet device.
Erosion or other signs of Contact the Town of Apex Public
damage have occurred in the Works & Utilities Department at
outlet. 249-3427.
The measuring device used to determine the sediment elevation shall be such that it will give an accurate
depth reading and not readily penetrate into accumulated sediments.
When the permanent pool depth reads 478.00' feet in the main pond, the sediment shall be removed to
original design specifications.
When the permanent pool depth reads _478.00' feet in the forebay, the sediment shall be removed to
original design specifications.
BASIN DIAGRAM
ill in the blanks)
0 Permanent Pool Elevation 480.00'
Pe anent ool Vol.
478.00' Volume
Sediment RemA7
----------------- Sediment Removal Elevation 478.00'
-ft min. -------------------------------------------- ------
Bottom El. 4.Sediment Stor e Bottom Elevation 477.00' 1-ft in. Sed. Storage
FOREBAY
MAIN POND
5
I acknowledge and agree by my signature below that I am financially responsible for the
performance of the maintenance procedures listed above. I will perform the maintenance as
outlined, as part of the regulations set forth in Section 6.1.12 of the Town of Apex Unified
Development Ordinance.
I understand that this Agreement shall endure to the benefit of my successors in title,
whomsoever they may be in the future. I agree to notify the Town of Apex of any problems with
the BMP or prior to any changes to the BMP or responsible party.
Note: The legally responsible party should not be an HOA unless more than 50% of the lots have
been sold and a resident of the subdivision has been named the president.
Print name: Mark Gramling
Title: Project Manager
Address: P.O. Box 1197 Apex, NC 27502
Phone: [phone].
Signature:
Date: o' -
(un , a Notary Public for the State of N?
County of do hereby certify that k Qr J( Gra M ? 'j 4?}q personally
appeared before me this ?30 day of -be a-'rn bk? , , 200 and acknowledge the
due execution of the foregoing wet detention basin maintenance requirements. Witness my hand
and official seal, twn-y ??"--
SEAL k
''?UBL?G ?' V•
couN_.
My commission expires ) D _H' i
6
a4 Ex
z s
o ?
9Th' CAQ'?y
FILTER STRIP, RESTORED RIPARIAN BUFFER, AND LEVEL
SPREADER OPERATION & MAINTENANCE AGREEMENT
I will keep a maintenance record on this BMP. This maintenance record will be kept in a log in a
known, set location. Any deficient BMP elements noted in the inspection will be corrected,
repaired or replaced immediately. These deficiencies can affect the integrity of structures, safety
or the public, and the pollutant removal efficiency of the BMP.
PROJECT: Trackside South - Phase I
RESPONSIBLE PARTY: _Apex First Development PHONE # [phone]_
CONTACT: Mark
ADDRESS: P.O. Box 1197 Apex, NC 27502
NUMBER OF FILTER STRIPS: 3
NUMBER OF RESTORED RIPARIAN BUFFERS: 1
NUMBER OF LEVEL SPREADERS: 3
A filter strip is a section of land capable of sustaining sheet flow and is either forested or
vegetated with turf grasses or other plants. Restored riparian buffers are natural or constructed
low-maintenance ecosystems adjacent to surface water bodies with trees, grasses, shrubs, and
herbaceous plants. Level spreaders do not remove pollutants by themselves, but they are crucial
in assuring the effectiveness of certain BMPs and in protecting the function of riparian buffers.
A level spreader consists of a concrete linear structure constructed at virtually zero percent
grade. One of the main purposes of a level spreader is to disperse concentrated stormwater flows
over a wide enough area to prevent erosion of the BMP or filter strip where it outlets.
Important inspection and maintenance procedures:
• Immediately after the filter strip is established, any newly planted vegetation will
be watered twice weekly if needed until the plants become established (commonly
six weeks). The watering should take place on designated days according to the
odd/even watering schedule cited in the Town of Apex Code of Ordinances.
• Once a year, the filter strip will be reseeded to maintain a dense growth of
vegetation.
• Stable groundcover will be maintained in the drainage area to reduce the sediment
load to the vegetation.
• Two to three times a year, grass filter strips will be mowed and the clippings
harvested to promote the growth of thick vegetation with optimum pollutant
removal efficiency. Turf grass should not be cut shorter than 3 to 5 inches and
may be allowed to grow as tall as 12 inches depending on aesthetic requirements.
• Once a year, the soil will be aerated and lime will be added if necessary.
• Remove any weeds or shrubs growing on level spreader or in swale.
• Inspect the level lip for settling, erosion, or concentrated flow.
After the filter strip is established, I will inspect it and the level spreader (if applicable) quarterly
and within 24 hours after every storm event greater than 1.0 inches. Records of inspection and
maintenance will be kept in a known, set location and will be available upon request.
2
Inspection activities shall be performed as follows. Any problems that are found shall be
repaired immediately.
BMP Element Potential Problems Problem Remediation
The entire filter strip Trash/debris is present. Remove the trash/debris.
system
The flow splitter device is Unclog the conveyance and dispose
Th
fl
litt
d
i
if clogged. of any sediment off-site.
e
ow sp
er
ev
ce (
applicable) The flow sputter device is Make any necessary repairs or

damaged. replace if damage is too large for
repair.

The swale is clogged with Remove the sediment and dispose
sediment. of it off-site.
The level lip is cracked,
settled, undercut, eroded or Repair or replace lip.
otherwise damaged.
Regrade the soil to create a berm
The swale and the level lip There is erosion around the that is higher than the level lip.
end of the level spreader that Plant a ground cover and water
shows stormwater has until it is established. Provide lime
bypassed it. and a one-time fertilizer
application.
Trees or shrubs have begun
to grow on the swale or just Remove them.
downslope of the level lip.
Areas of bare soil and/or Regrade the soil if necessary to
erosive gullies have formed. remove the gully, and then
reestablish proper erosion control.
The bypass channel
Turf reinforcement is Study the site to see if a larger
damaged or riprap is rolling bypass channel is needed (enlarge if
downhill. necessary). After this, reestablish
the erosion control material.
Grass is too short or too Maintain grass at a height of
long. approximately three to six inches.
Regrade the soil if necessary to
Areas of bare soil and/or remove the gully, and then plant a
erosive gullies have formed. ground cover and water until it is
established. Provide lime and a
The filter strip one-time fertilizer application.
Remove the sediment and
Sediment is building up on restabilize the soil with vegetation
the filter strip. if necessary. Provide lime and a
one-time fertilizer application.
Plants are desiccated. Provide additional irrigation and
fertilizer as needed.
BMP Element Potential Problems Problem Remediation
Determine the source of the
Plants are dead, diseased, or problem: soils, hydrology, disease,
dying. etc. Remedy the problem and
replace plants. Provide a one-time
fertilizer application.
Nuisance vegetation is Remove vegetation by hand if
choking out desirable possible. If pesticide is used, do not
allow it to get into the receiving
species.
water.
Erosion or other signs of Contact the Town of Apex Public
The outlet device damage have occurred in the Works & Utilities Department at
outlet. 249-3427.
I acknowledge and agree by my signature below that I am financially responsible for the
performance of the maintenance procedures listed above. I will perform the maintenance as
outlined, as part of the regulations set forth in Section 6.1.12 of the Town of Apex Unified
Development Ordinance.
I understand that this Agreement shall endure to the benefit of my successors in title,
whomsoever they may be in the future. I agree to notify the Town of Apex of any problems with
the BMP or prior to any changes to the BMP or responsible party.
Note: The legally responsible party should not be an HOA unless more than 50% of the lots have
been sold and a resident of the subdivision has been named the president.
Print name: Mark Gramling
Title: Project Manager
Address: P.O. Box 1197 Apex. NC 27502
Phone:
Signature:
Date: I? 3G
(W) n , a Notary Public for the State of
County of ?L? , do hereby certify that (?,?; `(, r(t ?? l []C4 personally
appeared before me this day of?Ice-Y1 200 and acknowledge the
due execution of the foregoing filter strip, restored riparian buffer (if applicable) and level
spreader (if a` ,C Sbl? r}fance requirements. Witness my hand and official seal, ?IvftC

SEAL `. sy?w'D1j81.?G V-
COUN???•j
My commission expires
5