SW8081025_Compliance Evaluation Inspection_20081002

DIVISION OF WATER QUALITY
INFILTRATION SYSTEM INVESTIGATION
Complete and email this form to Vincent.LewisLncmail net If there are more than 7 areas to be tested,
attach a second sheet /,�
Scheduled Site Visit Date: lb/.L/Q f Time: /f -'6d
Project Name: ►/ ave ,,c.teG'itri, Rd/CA County: e or
Street Address: A J Ze'I°td� Ri, ?WrT-
Directions from the nearest intersection of two major roads: N044 twee Gtta...
Take. a alclr , 5ercedia Fast 43 // Sr, r . 81.2e2--
S 4 to evt. tee (2 fie i cQ d/d Pig nnC
>1 acre being disturbed?,DYES ENO CAMA Major required? ES O
Consultant Name: , aviit7 /4vvLiS Phone: aga 6S3 't)O4$
Consultant Firm Name: "IOt4S r&wte rt,x, P.4".
iiexJ -A Akd
Bore Number 1 2 3 4 5 6 7
a) Existing Ground Elevation 13.75'
b)Proposed Bottom Elevation
c) Difference (a minus b)
d) Add 2 ft. (Min. Bore Depth) I .
e) Hardpan Depth?
f) Infiltration Rate OK?
g)Approx. Elev. Of SHWT , 1 $"
h) Max. lowest bottom elev.
Comments S bi-6 ttkd4 r( Seth,/
Re fired Attachments:
Legible vicinity map.
2,! Complete Soils Report.
�3 PDF formatted site plan with the boring locations to be tested. Site plans should
be emailed or hand-delivered only. Illegible faxed maps will not be accepted.
All proposed infiltration areas and existing, active utility lines located within the proposed
basin/trench must be marked and flagged. If these areas are not flagged, the Soils Scientist
reserves the right to decline to do the investigation. If the proposed infiltration system will be
located in an area of existing pavement and there is no open area nearby, equipment capable of
breaking through the impervious layer must be provided. The soils investigation does not take
the place of a soils report prepared by an appropriate professional. The Soils Scientist will only
verify the soil conditions that are reported in the Soils Report, and make a determination as to
the suitability of the site to meet the infiltration design requirements under NCAC 2H.1000, and
assumes no liability should the system fail.
S:1WQSISTORMWATER\FORMS\infiltration site visit.for Revised 8.07

- ECS CAROLINAS,LLP
imaseos.INA$ Geotechnical•Construction Materials•Environmental•Facilities
September 11,2008
Mr.Kevin Avolis,P.E.
Avolis lhnleo ,P.A.
P.O.Box 15564
New Bern,North Carolina 28403
Re: Infiltration Evaluation
Morehead City Police Department
Morehead City,Carlcral County,North Carolina
ECS Proj cot No.22.143 86C
Dear Mr.Avolis,
ECS Carolinas, LLP (ECS) recently conducted an infiltration evaluation for the proposed
infiltration area at the above referenced site located off of Tenth Street and Bridges Street in
Morehead City,Carteret County,North Carolina. This letter,with attachments, is the report of
our evaluation.
Field Testing
On September 9,2008 ECS met with Mr.Kevin Avolis with Avolis Engineering on site in order
to provide the requested test location. BCS then conducted an exploration of the subsurface soil
and groundwater conditions at one requested location shown on the attached Site Diagram. The
purpose of this exploration was to obtain subsurface information of the hi-place soils for the
proposed infiltration area. ECS explored the subsurface soil and groundwater conditions by
advancing one baud auger boring into the existing ground surface at the requested boring
location. ECS visually classified the subsurface soils and obtained representative samples of
each soil type encountered. ECS also recorded the groundwater and seasonal high water level
(SHWL) observed at the time of the hand auger baring. The attached Infiltration Evaluation
Form provides a summary of the subsurface conditions encountered at the hand auger boring
location.
The groundwater and SHWL were estimated at the boring location below the existing grade
elevation. Below is a summary of the boring location. The surface elevation was provided by
Avolis Engineering.
Location SHWL Surface Elevation ' Groundwater
1 48 inches , 13.75' 70 inches
ECS has conducted an infiltration test utilizing a compact constant head permeameter near the
hand auger boring to estimate the infiltration rate for the subsurface soils. Infiltration tests are
typically conducted at two feet above the SHWL.
7211 Ogden Business Part•Suite 2010 Wilmington,NC 28411.[phone]•Fax[phone]•www.ecdimited.com
Asheville,NC•Charlotte,NC•Greensboro,NC•Greenville,SC•Raleigh,NC•Swansboto.NC*•Wilmington.NC
*testing services only

CEO"
Infiltration Evaluation
Morehead City Police Department
Morehead City.Carteret Cowl '.North Carolina
ECSProject No.22.14386C
r.r Septernberll.2008
Field Test Results
Below is a summary of the infiltration test results:
Location Description T Depth _ Inches/hour
1 Brown fine 24 inches 9.4
SAND
Infiltration rates and SHWL may vary within the proposed site due to changes in elevation and
subsurface conditions.
If you have any questions regarding this report,please contact us at(910)686-9114.
Respectfully,
RCS CAROLINAS,LLP
)74 e/...4 144'
K Brooks Wall Walid M.Sobb,P.E.
Staff Geologist Principal Engineer
NC License No.22983
Attachments: Figure 1-Test Location Plan
Infiltration Evaluation
•

R
;.4,•0":. ' ,may /3
i .• ,
.ii,, ,,- iiirrli,,..,_. Tercmintiimirati, , ,•'; _ • •:_1 -
lalakk,"11,1111111111111/111110111:1101111114
oia
fa k]94 i ' t F • -•-y,
Y r1 `' 5 + �* f " ��F4 �µ - 'ir , II� :
_
���4� ' - - --� t iSiTiI I1N I1fir I CI r �• 't _jI- .1''
y ' IT . T r
fir,'!„jr,, t -� e? i
y L = r
;II,_ : s• V I litl,i, , •,,, ......'"Elr... .. 2 ltilla Ell --- - - -- --1.1ftille. w 1 . 11 ''' 1
III t.. „ "�,+,r ~\1• i
I ; i t t {I�
1 . 1 - , r5,
am
7111
• {� .��' • . r I ! . j Ery r 1 ' till 1sr " I +I P i
1
r
�I',.
i ;411 1
1 - Z
61271) IN ,
r,a r r , i PGA31
yetP3) it
INN
-0efnaggEzen. ishieeeimeje II il ipleirisii
lug din
EP TEST LOCATION
A
Morehead City Police Department
Morehead City,NC
Figure 1-Test Lacadon Plan
RCS Project No.22-143116-C Provided by: Melts Engineering,
September 9,2008
Yi$W CliAllitC01.11NASII
J

•
fir
' ` Infiltration Evaluation
L
Morehead
:� CityPolice Department
' .:z<
Morehead City, Carteret County,North Carolina
ECS Project No. 22.14386C
September 9, 2008
ocatiAII Soil Description
1 0-24" Brown fine SAND w/little silt
6"-60" Brown fine to medium SAND
Seasonal High Water Table was estimated to be at 48 inches below the existing
grade elevation.
Infiltration Rate: 9.4 inches per hour elevation
Test was conducted at 24 inches below existing gradea elevation.
Ground water was encountered at 70 inches below the existing grad

FWATF
\O�O RpG Michael F.Easley,Governor
y William G.Ross Jr.,Secretary
North Carolina Department of Environment and Natural Resources
t7 y .1'�— Coleen H.Sullins Director
Division of Water Quality
September 30, 2008
R. Randy Martin, City Manager
Town of Morehead City
706 Arendell Street
Morehead City, NC 28557
Project Name: Moehead City Police Department
County: Carteret County
Dear Mr. Martin:
Your recent State Stormwater Management Application and check#12017 for the $505.00 application
fee are being returned because the application lacked the necessary basic elements to accept it for
review. The plans and any other documentation that were submitted have been discarded or recycled,
as appropriate. Please address the following noted deficiencies and provide the requested information:
® According to Kevin Avolis with Avolis Engineering, PA, Vincent Lewis, a soil scientist with
DENR, has not yet conducted an infiltration site visit, which is required for all infiltration projects
proposed in counties served by the Wilmington Regional Office. Please submit the Infiltration
System Investigation request form to Mr. Lewis in order to schedule a site visit.
® Please verify whether or not this site already has a permit. According to the narrative included
with the application package, this site had been previously develop and utilized as the
Morehead City Elementary School. According to the DWQ permit database, Morehead City
Elementary School has an active low-density stormwater permit, SW8 921104.
® Evaluate the need for additional inlets into the infiltration basin. Each inlet should handle a
maximum volume of 2 acre-inch.
® The wetlands note on plan sheet C1 indicates that no Section 404 wetlands are located within
the project limits. Are there non-Section 404 wetlands present? If so, please delineate.
Please resubmit the permit application package to the address below. Note that the 90-day statutory
permit review time begins upon receipt of a complete application. If you have any questions, please do
not hesitate to call me at [phone].
Sincerely,
CRelki\D f)(g--Q3kr--)
Christine Nelson
Environmental Engineer
cc: Kevin Avolis, Avolis Engineering, PA
Wilmington Regional Office
Christine Nelson
ENB/can: S:1WQSISTORMWATIRETURN\Morehead City Police Dept.sep08
N,�i!hhCaro a
dvatural�ly
North Carolina Division of Water Quality 127 Cardinal Drive Extension Wilmington,NC 28405 Phone[phone] Customer Service
Wilmington Regional Office Internet: www.ncwaterquality.org Fax [phone]
An Equal Opportunity/Affirmative Action Employer—50%Recycled/10%Post Consumer Paper

12017 1
AVOLIS ENGINEERING, P.A. 4 FIRST CITIZENS
PO BOX 5405 MORTON RD BANK
NEW BERN,NC 28561 66-30-531 9/22/2008
252-633-0068
5
'AY
R�ER of 1,1
NCDENR $ ""505.00
Five Hundred Five and 0 Oil
00""""""""""****"*****************"**""******"************************************************** DOLLARS
NCDENR N
8
)-2......_______ .
MEMO AUTHORIZED SIGNATURE
STORMWATER-MHC POLICE DEPT
ii'0L20L711' 1:0E31003001:00b1L243927911'