SW7080110_HISTORICAL FILE_20210720

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO. I SW
DOC TYPE ❑ CURRENT PERMIT
❑ APPROVED PLANS
HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE 02OL le7K
YYYYMMDD

W4 K6
ROY COOPER
Governor
ELIZABETH S. BISER
Secredary
BRIAN WRENN
Director
Atul Parmar
3455 Matin Luther King, Jr., Blvd.
New Bern, NC 28562
NORTH CAROLINA
Environmental Quality
July 20, 2021
Subject: Stormwater Permit Renewal
Stormwater Management Permit SW7080110
Candlewood Suites
Craven County
Dear Atul Parmar:
A Division of Energy, Mineral, and Land Resources file review has determined that
Stormwater Permit SV 7080110 for a stormwater treatment system consisting of a five
bioretention basins and a wet detention pond serving Candlewood Suites located at
3465 Martin Luther King, Jr., Blvd, New Bern, NC expires on December 30, 2021. This
is a reminder that permit renewal applications are due 180 days prior to expiration. We
do not have a record of receiving a renewal application.
Please submit a completed permit renewal application along with a $505.00 fee for
permit renewal. Permit application forms for renewal can be found on our website at:
https://deq. nc.gov/about/divisions/energy-mineral-and-land-
resources/stormwater,istormwater-prograrn/post-construction-2. North Carolina General
Statutes and the Coastal Stormwater rules require that this property be covered under a
astormwater permit.
If you have questions, please feel free to contact me at [phone]. 1 will be glad to
discuss this by phone or meet with you. If you would like, I can e-mail you a copy of the
application forms. You can request a copy by e-mailing me at
roger.thorpe aancdenr.gov.
Sincerely,
Roger K. Thorpe
Environmental Engineer
�j+ North Carolina Department of Environmental Quality Division of Energy. Mineral and Land Resources
Washington Regional Office 1 943 Washington Square Mail f Wwhington. North Carolina 27869
.x.., � if gym.^,M+�^� / 252.446.6431

o46 � f s1/0768olo .E.0.
FINANCIAL RESPONSIBILITY/OWNERSHIP FORM COWED
ED
SEDIMENTATION POLLUTION CONTROL ACT
FE9 2 2 2006
No person may initiate any land -disturbing activity on one or more acres as covered by the Act before this
form and an acceptable erosion and sedimentation control plan have been complete�diand approved(,by the
Land Quality Section, N.C. Department of Environment and Natural Resources. 1(,P.lease,°type or=pnntiand, if
the question is not applicable or the e-mail and/or fax information unavailable, place N/A in the blank.)
Part A.
1. Project Name_Candlewood Suites
2. Location of land -disturbing activity. Ccunty Craven City or Township New Bern_
Highway/Street_3465 MILK Boulevard Latitude_35d 05' 53" N_ Longitude_77d 05' 55"w_
3. Approximate date land -disturbing activity will commence:01/30/08
4. Purpose of development (re3iden6s!, commercial, industrie!, institutie.n.a-!,-etc.):_Hotel_
5. Total acreage disturbed or uncovered (including off -site borrow and waste areas):_2.9 acres
6. Amount of fee enclosed $ 150 . The application fee of $50.00 per acre (rounded
up to the next acre) is assessed without a ceiling amount (Example: a 9-acre application fee is $450).
7. Has an erosion and sediment control plan been filed? Yes No Enclosed X
8. Person to contact should erosion and sediment control issues arise during land -disturbing activity:
Name_AtulParmar E-mail AddressPArHAKAt(/L (cj VAlloo Co
Telephone_252-259-1575 Cell # L5 L- 7-5 `9 I S 7 )r- Fax # Z5Z 63820 3 8
9. Landowner(s) of Record (attach accompanied page to list additional owners):
_AtulParmar _252-259-1575 L5Z-638 L039
Name Telephone Fax Number
_3455 MILK Boulevard 5 <1ME
Current Mailing Address Current Street Address
New Bern NC 28562 _
Ciy Statc Zip C.State Zip
10 Deed Book No 9G G
J Page No. I l Provide a copy of the most current deed.
PartB. 4 223-4 P'l(> 51
1. Person(s) or firm(s) who are financially responsible for the land -disturbing activity (Provide a
comprehensive list of all responsible parties on an attached sheet).
_Atul Farmer PA2MA� A To( 0� VpNoo CoM
Name E-mail Address
_3455 MILK Boulevard SAMC _
Current Mailing Address Current Street Address
_New Bern NC 28562_
City State Zip City State Zip
Telephone_252-259-1575 Fax Number

2. (a) If the Financially Responsible Party is not a resident of North Carolina, give name and street address
of the designated North Carolina Agent:
Name E-mail Address
Current Mailing Address Current Street Address
City State Zip City State Zip
Telephone Fax Number
(b) If the Financially Responsible Party is a Partnership or other person engaging in business under an
assumed name, attach a copy of the Certificate of Assumed Name. If the Financially Responsible
Party is a Corporation, give name and street address of the Registered Agent.
Name of Registered Agent E-mail Address
Current Mailing Address Current Street Address
City
State Zip
City
Fax
State Zip
The above information is true and correct to the best of my knowledge and belief and was provided
by me under oath (This form must be signed by the Financially Responsible Person if an individual
or his attorney -in -fact, or if not an individual, by an officer, director, partner, or registered agent with
the authority to execute instruments for the Financially Responsible Person). I agree to provide
corrected information should there by any change in the information provided herein.
_Atul Parmar
Type or print nay4
Signature- (y / r �e'�
_Owner
Title or Authority
Date
v � i
I, ZeNVA /L 214A ngN a Notary Public of the County of 2r6tv n/
State of North Carolina, hereby certify that 11fa —P,„„a appeared
personally before me this day and being duly sworn acknowledged that the above form was
executed by him.
Witness my hand and notarial seal, this _ day of � A} l 20_p

Soil Map —Craven County, North Carolina
r'
O �p
4x 8°'fJ
fJ 0 25 50 100 150 eters
A Feet
0 100 zoo 400 600
USDA Natural Resources Web Soil Survey 2.0 1/16/2008
40 Conservation Service National Cooperative Soil Survey Pagel of 3

Soil Map -Craven County, North Carolina
Map Unit Legend
Craven County, North Carolina (NC049)
Map Unit Symbol
Map Unit Name Acres in AOI Percent of AOI
I Au6
Autryville loamy sand, 0 to 6 1.0 8.0 % 1
percent slopes
GoA
—
Goldsboro loamy fine sand, 0 to i 4.6 1 36.5 % I
2 percent slopes
Ra Rains fine sandy loam 7.1 55.6%
Totals for Area of Interest (AOI)
12.7 100.0%
USDA Natural Resources Web Soil Survey 2.0 1/16/2008
i Conservation Service National Cooperative Soil Survey Page 3 of 3

Blackburn Consulting Engineering
305 East Main Street
Clayton. NC 27520
Phone: [phone] Fax: [phone]
Candlertiood Suites
Stormwater Management Narrative
Candlewood Suites site consists of 2.9183 acres at the corner of Martin Luther
King Jr. Blvd and Glenburnic Road. Currently there is an abandoned motel and
associated parking lots on the site. The site is currently 63.4% impervious due to
buildings and parking lots. The proposed plan is to demolish all existing impervious
surfaces and dispose of waste in appropriate permitted landfills. The proposed Phase One
construction is for a 11,664 square foot hotel with parking and sidewalks. Phase Two.
approximately 1.0 acre on the,north end of the property, is designed for future
construction of a 6,300 square foot restaurant and associated parking and sidewalks. The
total proposed imperviousness for both phases is 65.9%.
In order to meet Stormwater Management Permit requirements, all stormwater
runoff from imperviousness on the site will be captured and treated by stormwater BMPs.
These consist of five bioretention cells to serve all areas north of the hotel in Phase One
and all of Phase Two and a wet detention pond to serve the hotel building and all areas
south of the building. Bioretention cells have 35% nitrogen removal for 1.71 acres and
the wet detention pond has 25% nitrogen removal for 1.0 acres. This results in an overall
nitrogen reduction of 29.4% from existing conditions for the proposed construction with
BMPs. All runoff front the site following treatment by the BMPs is discharged to the
existing stormwater system in Glenburnic Road.
Phase Two is not being built at this time. Bioretention cell #7 is located within
the area of Phase Two. This bioretention cell serves areas within Phase One and Phase
Two as delineated on the drainage area map attached to the drainage calculations.
Bioretention cell 97 is to be built as part of Phase One in order to serve the Phase One
area within its service area. Stormwater management for the remainder of Phase Two
will consist of bioretention cell 48 located along the northern property line. This
bioretention cell will be constructed with the development of Phase Two.
CA
.. Y�1,\IIIIIRYhiI1jM
=pQoFP s 1pOj /?9
v:
SF AL r'
O- 9486 ? _
FNG I N:�
`�., .W , t �6��� •GAG
ul.
p 3 /b7 /D�

NORTH CAROLINA DEPARTMENT OF ENVIRONMENT & NATURAL RESOURCES
Division of Water Quality - Stormwater Permitting Unit
COASTAL STORMINATER APPLICATION CHECKLIST
The following items are considered when reviewing an application in accordance with T15A:02H.1000,
Stormwater management. This checklist is intended to (1) assist the reviewers in maintaining consistency
during the review process and (2) facilitate communication between the reviewer and applicant. It is not
intended to replace information (including other lists) which may be part of the application form,
supplements, BMP manual or the regulations. Nor is it intended to bypass best professional judgement with
respect to the sufficiency of the information submitted.
This double sided page lists those items impacting "Application Completeness". "Project Types and
Supplements" follows the checklist and provides an overview of low density, general, and high density
projects and the associated supplement forms. The latest versions of all referenced forms and documents
may be obtained on-line at http://h2o.enr.state,nc.us/su/Forms Documents htm.
APPLICATION COMPLETENESS
1) Stormwater Permit Application Form (SWU-101)
a. _/Original and one copy are provided. The copy will be returned to the applicant with the
permit.
b. _-/All items of the application are completed
C. -Named applicant is an owner or corporation
d. _✓For corporations, registration with the Secretary of State is verifiable on the online
database.
e. _✓Signing official is the owner, a corporate President or Vice President, or an LLC
member/manager. Documentation is required verifying LLC member status. If the permittee
wishes to delegate signature authority, a signed letter from the applicant must be provided
and it must include the name, title, mailing address and phone number of the authorized
ser
f. _77Receiving stream classification is correct.
g. /"Submittal requirements are initialed by hand.
h. ✓ Original signature is provided under applicant certification.
2) Plans
a. Two copies are provided. The copy will be returned to the applicant with the permit.
b. Plan is based on a topographical survey.
C. Development / project name is consistent with the application form.
d. 7 Engineer name, firm and seal are located on each page of the plans. For low density
_ ects not requiring engineered stormwater controls, the plans need not be sealed.
e. egend is provided including north arrow, scale, and plan details.
f. _ Location map is shown with named streets or NCSR numbers and distance to nearest
town or city.
g. _Date is listed.
h. / evision number & date are listed, if applicable.
i. Property and project boundaries are included.
j. Wetlands are delineated, or a note on the plans states that none exist. (L-1,
k. 7 Other geologic features are included rock outcrops, streams, lakes, ponds, etc.
I. Mean high water line is identified, if applicable.
M. Drainage areas are delineated, including all off -site contributions. (ArrALw69 To cAucacAT1oNS)
n. Existing contours, proposed contours, spot elevations, and finished floor elevations are
clearly shown.
o. uilt-upon areas. existing and planned and including buildings, roads, etc, are shown.
p. _ Lots and or building numbers are labeled.

q. V Stormwater conveyance and management systems are shown. These include level
spreaders, side swales, wet detention ponds, infiltration trenches and basins, etc.
r. ✓ For wet ponds, average depth is consistent with maximum depth.
S. ,For
wells or benchmarks are located. (L-Z
t. Drainage easements and pipe sizes are identified.
u. OA Vegetated buffers (where required) are labeled.
v. N.L Vegetated filters (where required) are identified.
w. NA Level spreaders (where required) are identified.
X. ✓ Dimensioned typical unit footprint for multi -unit developments are given.
y. 7Details of roads, parking, cul-de-sacs, sidewalks, and collection systems are shown.
z. 9etails of stormwater control measures are included.
aa_ Vegetative stabilization plan is included.
3) Supplement Form(s) - these are general supplement requirements; see the following page for
further information on specific project types.
a. One original and one copy are provided. The copy will be returned to the applicant with the
p5prnit.
b. ✓ Correct supplements are provided for each drainage area,
C. y.11 items on the supplement(s) are completed.
d. roject information is consistent with the application and plans.
e. _ Operation and Maintenance agreement for engineered stormwater systems including curb
utlet systems is signed and notarized.
� 5natir��
4) Fee - 14 made payable to NCDENR is-e closed. Q�_wt DUS, `( 9�t(301 1TtY'B
5) Narrative - the existing and proposed site characteristics, use, drainage, and stormwater
management plans are clearly described.
6 Calculations
a. _ Supporting calculations are provided for the numerical data submitted in the application
aryef supplements.
b. ✓_ For engineered stormwater controls, supporting calculations are signed and sealed.
7 Soils R ort — ez<-vtou.su-y s(4-6rt )T71L
a. For projects with engineered stormwater controls, a soils report is provided.
b. ✓�On-site soil borings at the location of the proposed treatment system are included.
C. 7 A soil profile and characteristics including the depth to the seasonal high water table
(SHWT) is given.
d. Findings are related to the NRCS County Soils map, an 8'/2 x 11 inch copy of the county
soils map with the project location shown is provided,
81 Ve etati n Plan
a. jfemporary and permanent grass seeding specifications are provided.
b. ,7 For projects with engineered stormwater controls, the plan includes additional species,
locations, spacing, soil preparation, fertilizer requirements, procedures and a schedule for
installation. The plan was prepared by a qualified individual.
9) Deed Restrictions - Deed restrictions are provided for subdivisions and projects with outparcels.
These are necessary to ensure ongoing compliance. Examples of appropriate forms for each type
of project are available upon request (reference document names and locations).
J:\WPDATA\WQS\State SW-TMA\SW Application Review Checklist revised (Updated 6/18/07)

PROJECT TYPES AND SUPPLEMENTS
A. Low Density: Supplement SWU-104 or SWU-105
Applicability:
Low density projects may not result in built -upon surfaces in excess of 25% or 30%, depending on
the classification of the receiving stream. For calculating density with wetlands, see guidance
memo (reference document and location).
• In low density projects, stormwater is conveyed primarily via sheet flow and swales with limited
piping for under road conveyance. Curb outlet systems may also be used in a low density project.
• No area of the project may be configured such that it constitutes a pocket of high density. In other
words, if development is concentrated such that the undeveloped land does not significantly impact
treatment of the stormwater runoff from the developed or impervious surfaces, the low density
option may not be applied to the overall project.
Low density projects must maintain a 30 foot wide vegetative buffer. That is, any impervious
surfaces must be at least 30 feet from surface waters, measured horizontally from the structure to
the mean high water line of the surface water.
• All swales and related vegetated slopes must be T1 (horizontal to vertical) or flatter.
Regulatory References: NCAC Title 15A, 02H.1005, 02H.1008(g).
SWU-104 is required for low density projects for which lot subdivision and selling is intended. All
sections of the supplement should be completed including the built -upon area per lot calculation.
Deed restrictions are required.
SWU-105 is required for low density projects in which curb and gutters are incorporated. All sections
should be completed including swale design, Table 1. Supporting calculations should also be
supplied. The maintenance agreement contained within the supplement must be signed and
notarized.
B. General Permit: SWG01 SWG02 SWG03 SWG04
Applicability:
General permits may be issued for certain groups of similar activities, including
(1) construction of single family residences (SWG01),
(2) bulkheads and boat ramps (SWG02),
(3) clearing and grading (SWG03), and
(4) linear utility projects (SWG04).
For these types of projects, a Notice of Intent should be submitted. Upon review and approval
Certificate of Coverage will be issued covering the applicant under a general permit.
Regulatory ReferenceNCAC Title 15A, 02H.1013.
C. High Density: SWU-102 SWU-103 SWU-106 SWU 107 SWU 108 SWU 109
General Considerations
All runoff from the built -upon area shall be collected by swales, piping, or other means and directed
to an engineered stormwater control device or system. Runoff shall also be collected from
contributing off -site areas.
Wet ponds and infiltration basins and trenches are commonly utilized engineered stormwater
control devices. Other options include bioretention areas, extended dry detention basins,
stormwater wetlands, off -site systems, and innovative and alternative systems.

• All systems shall be designed to meet minimum criteria, as listed in the regulations, the supplement
and in accordance with the current version of the Water Quality Section Stormwater Best
Management Practices (BMP). The current BMP manual may be viewed through a link at
http://h2o.enr.state.nc.us/su/Forms Documents Main htm
• All swales and related vegetated slopes shall be 3:1 (horizontal to vertical) or less steep.
• Operation and Maintenance plans are required for each engineered stormwater management
system. Plans are included in the respective supplements and they must be signed and notarized.
• For the purposes of operation and maintenance access, all stormwater management structures
shall be located within recorded drainage easements.
• Plans for engineered stormwater control systems shall be prepared and sealed by a professional
engineer.
Supporting calculations must also be signed, dated and sealed.
• One supplement shall be submitted for each drainage area
• Regulatory Reference: NCAC Title 15A, 02H.100&

BLACKBURN CONSULTING ENGINEERING
305 E. Main Street
Clayton. North Carolina 27520
Ph. [phone] I=ax [phone]
February 22, 2008
Stormwater Section
Attn: Ernest Odei-L,arbi
Washington Regional Office
943 Washington Square Mall �11����i �
Washington, NC 27889 �11 I VJ
Re: Candlewood Suites (Project 9 SW7080110) ��ijppF��EB LJ 2006
The following is submitted in response to your comments, dated February 1, 2008; VYAR0
conceming the referenced project.
Submitted for your review are the following items.
1) 3 sets of revised construction drawings.
2) Revised Stormwater Management Permit application (original and copy).
3) Coastal Stormwater Application Checklist (original and copy).
4) Bioretention Inspection and Maintenance Agreement.
5) Wet Detention Basin Inspection and Maintenance Agreement.
6) 3 copies of revised Stormwater Management Narrative.
7) 3 copies of the revised Drainage and Erosion Control calculations.
8) 3 copies of revised Bioretention Design Calculations and Supplements.
9) 3 copies of revised Wet Pond Design Calculations and Supplement.
Comment Responses:
1) Volume calculations for wet detention pond have been updated for the revised pond
design.
2) A pump is required to drain the wet detention pond for sediment removal and
maintenance. This note has been added to Sheet 7B.
3) The aquatic shelf around the wet detention pond has been specified as having 10'
width with 10:1 slope fi-om elevation 17.5 to elevation 18.5 which is 6" above and
below the permanent pool elevation. This is detailed on sheets 7A and 7B.
4) The permanent pool has been defined with metes and bounds on sheet 7A. Sheet 7A
provides an enlargement of the wet detention pond.
5) Specifications for planting around the wet detention pond are shown on sheet 7A.
6) The average permanent pool depth was calculated beginning at elevation 9 which is
the top of the sediment storage. This is reflected on the stage, area. and volume table
on sheet 7A.

7) A revised stormwater management permit application has been submitted showing 6
drainage areas for the project. The revised application is for the total project area,
consisting of phase 1 and phase 2, even though phase 2 is not to be constructed at this
time.
8) A note requiring a certified soils report confinning the phosphorus index of the fill
material for the bioretention basins has been added to sheet 7B.
9) Runoff from the parking lot shall enter the bioretention basins by sheet flow from all
directions. There is no curb and gutter around the bioretention basins. The double
line shows the edge of pavement and the edge of basin as now note on sheet 6.
10) The drawdown calculation formula used is defined with the calculations for basin #4.
This formula, including the coefficient of 0.000023, was obtained at a Workshop on
Bioretention. A worksheet from the document published by NC Cooperative
Extension Service is attached to the calculations for bioretention basin 94. The
number 0.45 is the assumed porosity of the soil. This number was also obtained at
the referenced workshop. The same formula and porosity was used in all bioretention
calculations.
11)The drawdown calculations for the wet detention pond have been revised based on
one-third depth of the temporary pool.
12) The volume calculations for the wet pond are shown on sheets 7A. The step between
elevation 18 and elevation 18.5 is based on the sum of the areas in the forebay and the
main pool at elevation 18 and the area at elevation 18.5.
13) All numbers on sheet 2 (previously cover sheet) have been corrected.
14) The permit application has been revised to include the total project. Bioretention #8
is now part of the application. The drainage delineation map attached to the
calculations shows all drainage areas including basin #8.
15) As stated above, the permit is now based on the total 2.918 acres.
16) All numbers on sheet 2 (previously cover sheet) have been corrected.
17) No 30 foot vegetative filter is provided for the bioretention bypass. "there is no area
available for this. Per our phone conversation, Phase 2 was added to the permit as the
filter strip area is not available.
18) The rebar spacing for the trash rack for the wet detention pond has been changed to
4"oc.
19) Anti -floatation calculations have been provided for the riser structure in the wet
detention pond.
Sincerely.
..... Blackburn Consulting Engineering
i O • .J J'/ W
Daniel W. Blackburn, P.E.
r

CAROLINA ENGINEERS, PA
Geotechnical • Construction Materials • Forensic • Site Development • Surveying
January 8, 2008 MCOVEM
JAN 1 8 2008
Blackburn Consulting Engineering [)WQ.WAR®
305 East Main Street Vtl4C tlV
Clayton, NC 27520
Attention: Mr. Danny Blackburn, PE
Subject: Subsurface Soil Investigation for Proposed BMP Location
Candlewood Suites, Martin Luther King, Jr. Blvd.
New Bern, North Carolina
Dear Mr. Blackburn,
In accordance with your request, Carolina Engineers, P. A. has completed a subsurface
soil investigation and performed a geotechnical evaluation for the proposed Stormwater
Best Management Practices (BMP) locations at Candlewood Suites project located on
Martin Luther King, Jr. Blvd. in New Bern, North Carolina. The objective of our
investigation was to evaluate the in -situ soil conditions for preliminary selection of BMP
locations to be used in retention and treatment of stormwater runoff from the proposed
project site. This report contains visual soil classifications, water table depths and
approximate infiltration rates for in -situ soils found at the proposed BMP sites.
We appreciate the opportunity of assisting you on this project. I f we can answer any
questions or should you need additional assistance, please do not hesitate to contact us.
Sincerely,sr
CAROLINGINEERS,
v,P;31q„ r
C,4RLC.'nUDDLE
ARL C. HUDDLE, P.E.
Project Engineer
North Carolina Registration No. 20670
'<-,`�ti: r..`. • _
Enclosures: Narrative (1)
Hand Auger Boring Data
(2)
Boring Location Plan (1)
PO Box 1595, New Bern, NC 28563, Tele: [phone], Fax: [phone], www.carolinaengineers.com

Candlewood Suites
January 8, 2008
Page 2 of 3
1. INTRODUCTION
Carolina Engineers, P.A. was retained by Blackburn Consulting Engineering to
provide a subsurface soil investigation and provide geotechnical services for site
selection of the BMP locations for the proposed Candlewood Suites located in
New Bern, North Carolina. The proposed site is located on the corner of
Glenburnie Road and Martin Luther King, Jr. Boulevard and currently consists of
the foundations and parking lots for an old motel. The proposed BMPs will
consist of bioretention areas located at four inlet structures in the parking lot north
of the proposed Candlewood Suites building. A future bioretention area
approximately 275 feet in length and 12 feet wide is proposed along the north
boundary of the property.
2. FIELD EXPLORATION AND SUBSURFACE CONDITIONS
Field Exploration
The field exploration consisted of performing two hand augured borings to depths
of 6 feet and classifying the encountered soils in accordance with ASTM D-2488.
The results of the borings are provided as hand auger boring logs describing
subsurface soils at each boring site including soil classifications, stratification
lines and water table depths. The water table depths are the average daily
readings taken from piezometers during the week ending December 15, 2007.
Subsurface Conditions
Hand auger borings performed at locations B-1 and B-2 encountered
approximately 12 inches of brown poorly graded sand with traces of organics
(topsoil). Below the topsoil to a depth of 2.5 feet a light brown mottled orange
clayey fine sand was found. Below the clayey fine sand strata to the boring
termination depths of 6 feet a tan to light tan poorly graded sand was encountered.
No ground water was found in the Peizometers that indicates the water table to be
below 6 feet from existing surface elevations at both locations.
Visual soil classifications in accordance with the Unified Soil Classification
System (USCS) determined subsurface soils at the boring locations to be poorly
graded sands (SP) and clayey sands (SC).
PO Box 1595, New Bern, NC 28563, Tele: [phone], Fax: [phone], www.carolinaengineers.com

Candlewood Suites
January 8, 2008
Page 3 of
Infiltration Rates
The following infiltration rates are from published values of permeability for each
soil type:
USCS Soil Type Infiltration Rate
SP 4.2 inches/hour
SC 4.25x10' inches/hour
Summary
Based on the low Infiltration rates of the clayey sand layer, the construction of
BMPs at the proposed locations can be performed with modification to the site.
The modification will include but is not limited to the following:
...Removal of the_clay_ey_sand_soils_found to_the depth_of 2,5 feet.and backfill
with a clean permeable sand. The over excavation should be performed to
a depth of approximately 2_5 feet and back filling with a clean sand with a
fines content of no more than 10%. A geotechnical engineer or
representative should witness the over excavation and tests the back fill for
compliance.
Prior to final design and construction of the proposed stormwater BMP, a test
location should be constructed and an on -site infiltration tests performed to verify
infiltration rates.
This narrative represents our opinion based on the limited augured borings and
testing performed. Assumption has been made that the limited exploratory
borings are representative of conditions at the BMP site. If during construction,
conditions are encountered which differ significantly from those reported, we
should be notified so our analyses and recommendations can be reviewed and/or
revised as necessary.
PO Box 1595, New Bern, NC 28563, Tele: [phone], Fax: [phone], www.carolinaengineers.com

HAND AUGER BORING DATA
Client: Blackburn Consulting Engineering
Project: Candlewood Suites
Technicians: John Switzer
Auger Location: B-1, East End of Future Bioretention Area
Date:
12-7-07
Project No.:
ce.217-07
Boring No.:
B-1
Boring Method:
Hand Auger
Depth Lab _Data _ Soil Description and Remarks USCS Symbols Water
(H) PI (%) Table (ft)
- - - - Brown poorly graded sand with organics (topsoil) SP
1 foot
- - Light brown mottled orange clayey sand SC
2.5 feet, '
I
- - - - Tan to light tan poorly graded sand SP
i
6 feet
boring terminated at 6 feet Water table not recorded
Carolina Engineers, PA - P.O. Box 1595 - New Bern, NC 28563 - Phone [phone] - Fax [phone]

HAND AUGER BORING DATA
Client: Blackburn Consulting Engineering
Date:
12-7-07
Project: Candlewood Suites
Project No.:
ce.217-07
Technicians: John Switzer
Boring No.:
B-2
Auger Location: B-2. West End of Future Bioretention Area
Boring Method:
Hand Auger
Depth _Lab Data I Soil Description and Remarks USCS Symbols Water
(it) -no(%)ILL (%) � PI (%)
Table (ft)
I I
8 inches Brown poorly graded sand with organics (topsoil) SP i
- - - - Light brown mottled orange clayey sand SC
2 feet
i
I
- - - - Tan to light tan poorly graded sand SP
I
I
6 feet
boring terminated at 6 feet
Carolina Engineers, PA - P.O. Box 1595 - New Bern, NC 28563 - Phone [phone] - Fax [phone]