SW8000631_COMPLIANCE_20040112

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO. SW kw&J?
_(
DOC TYPE ❑CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
COMPLIANCE EVALUATION INSPECTION
DOC DATE
YYWMMDD

�N Complete items 1, 2, and 3. Also complete
item 4 if Restricted Delivery is desired.
■ Print your name and address on the reverse
so that we can return the card to you.
■ Attach this card to the back of the mailpiece,
or on the front if space permits.
1. Article Addressed to:
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c315 S 7
A.
❑ Agent
x " '' ❑ Addressee
B. Received by (Printed Name) C. Date of Delivery
D. Isdelive t1 em t? ❑Yes
if YES, elivdre tit w: ❑ No
l7l1 + �y
3. Service Type .
Certified Mail ❑ Express Mail
❑ Registered ❑ Return Receipt for Merchandise
❑ Insured Mail ❑ C.O.D.
4. Restricted Delivery? (Extra Fee) ❑ Yes
2. Article Number
,^
(Transfer from si� ' `ti ', 1002 11000 0005.: ;2390 ' 8726i
PS Form 381 1, August 2001 Domestic Return Receipt 2ACPRI-03-P•4681

UNITED STATES POSTAL SERVIGE,.-� c
"A c
Postage & Fees Paid
LISPS ----*-
Permit No. G-10
• Sender: Please prirityot-r-name, address, and ZIP+4 in this.box, •
State of North Carolina
DENR
127 Cardinal Drive Ext.
Wilmington, NC 28405 (Attn: BEV
D606) t
Z 6 I[il l��iEl1�!!!II[!fl!{II!ltliitl�l lltl�f'!�!!!l�11!l Ftlliil

OF WATER Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
co Alan W. Klimek, P.E.,Director
p .� Division of Water Quality
Coleen H, Sullins, Deputy Director
Division of Water Quality
January 12, 2004
CERTIFIED MAIL #7002 1000 0005 2390 8726
RETURN RECEIPT REQUESTED
Mr. john Thomas, Owner
Thomas Management
PO Box 15127
Surfside Beach, SC 29587
NOTICE OF INSPECTION:
Kentucky Fried Chicken
Stormwater Project No. SW8 000631
New Hanover County
Dear Mr. Thomas:
Please find attached a copy of the completed form entitled "Stormwater Compliance
Inspection Report". The report summarizes the findings of a recent inspection of the
project's stormwater controls conducted on November 21, 2003 to determine
compliance with Stormwater Permit Number SW8 000631 issued on September 21,
2000. - ------
A summary of the findings and comments are noted under Section 4 of the report.
Please inform this Office in writing before February 12, 2004 of the specific actions that
will be undertaken and the time frame required to correct the deficiencies. Failure to
provide the requested information, when required, may initiate enforcement action. If
you have any questions please contact me at the Wilmington Regional Office, telephone
number [phone].- --
Sincerely,
/�, //. - 3- �, Z -
Gary H. Beecher
Environmental Technician
RSSlghb: S:1WQSISTORMWATIINSPECT1000631.Nov03
cc: consultant
Wilmington Regional Office
Gary H. Beecher
N. C. Division of Water Quality 127 Cardinal Drive Extension [phone]
Wilmington Regional Office Wilmington, NC 28405 [phone] Fax
Customer Service
1 800 523-7748
ai.ill�r�
NCUENR

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(Endorsement Required)
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Restricted Detivery Fee
(Endorsement Required)
Total Postage &Fees
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or PO Box No.
City, to, ZJP+4f

1 Mrs%Ltb ovT �C�zjo�l
OF WArF9 SC(-*Vb 00-rl CIE Michael F. Easley, Governor
r� G% Uo AESPoMt Fr.r, !sT 906 William G. Ross Jr., Secretary
�O G North Carolina Department of Environment and Natural Resources
6
Alan W. Klimek, P.E.,Director
Division of Water Quality
Coleen H. Sullins, Deputy Director
Division of Water Quality
January 12, 2004
CERTIFIED MAIL #7002 1000 0005 2390 8726
RETURN RECEIPT REQUESTED
Mr. john Thomas, Owner
Thomas Management
PO Box 15127
Surfside Beach, SC 29587
NOTICE OF INSPECTION
Kentucky Fried Chicken
Stormwater Project No. SW8 000631
New Hanover County
Dear Mr. Thomas:
Please find attached a copy of the completed form entitled "Stormwater Compliance
Inspection Report". The report summarizes the findings of a recent inspection of the
project's stormwater controls conducted on November 21, 2003 to determine
compliance with Stormwater Permit Number SW8 000631 issued on September 21,
2000.
A summary of the findings and comments are noted under Section 4 of the report.
Please inform this Office in writing before February 12, 2004 of the specific actions that
will be undertaken and the time frame required to correct the deficiencies. Failure to
provide the requested information, when required, may initiate enforcement action. If
you have any questions please contact me at the Wilmington Regional Office, telephone
number [phone].
Sincerely,
1f9_? f/3,L
Gary H. Beecher
Environmental Technician
RSSlghb: S:IWQSISTORMWATIINSPECT1000631.Nov03
cc: consultant
Wilmington Regional Office
Gary H. Beecher
N. C. Division of Water Quality 127 Cardinal Drive Extension [phone] Customer Service
Wilmington Regional Office Wilmington, NC 28405 [phone] Fax [phone] NCDENR

STORMWATER COMPLIANCE INSPECTION REPORT
Project Name: Kentucky Fried Chicken
Project Number: 000631 Control Measure: Infiltration Basin
Water Body: Howe Creek Classification: "SA ORW"
Directions to site: 6826 Market Street, Wilmington
2. Inspection Date: November 21, 2003
Weather Conditions: dry and sunny
3. Compliance Issues:
Y N
❑ ❑ The drainage area (including offsite) and built -upon area to the permitted
system are per the approved plan. No unpermitted offsite drainage enters
the system.
❑ ❑ All the built -upon area associated with the project is graded such that the
runoff drains to the system.
❑ ❑ For pond slinfiltration, the outlet/bypass structure relative elevations are
per the approved plan. (Must be verified via as -built survey if in question),
❑ ❑ The inlets and outlet structure are located per the approved plans and do
not cause short-circuiting.
❑ ❑ A trash rack is provided over the outlet weir and orifice.
❑ X All slopes are grassed with permanent vegetation and are not eroding.
❑ ❑ Vegetated slopes are no steeper than 3:1.
❑ ❑ The approximate amount of permitted surface area has been provided.
(Must be verified via as -built survey or designer's certification.)
❑ ❑ Required drawdown devices are correctly sized per the approved plans.
All required design depths are provided.
❑ ❑ All required parts of the system are provided, such as a vegetated shelf,
and a forebay.
❑ �f The designer's certification has been submitted.
❑ ❑ The required deed restrictions are correctly recorded and submitted.
❑ ❑ The number of lots or outparcels is per the permitted amount.
❑ ❑ The built -upon area on the lots or outparcels does not appear to exceed
the maximum amount (must be verified via as -built survey if in question)
❑ ❑ Curb outlet swales are constructed, located properly, are 100' long and
have dense vegetated cover.
❑ ❑ The road, cul-de-sac, parking lot and sidewalk widths are per the
approved plan.
❑ X Required maintenance is being performed.
❑ ❑ Outparcels have their own offsite permit.
❑ ❑ For low density projects, roadside swales are 3:1, vegetated and stable.
❑ 0 For low density projects, there are no unpermitted pipes on the project.

J!
4. Required Actions: (Explain each deficiency and what needs to be done to bring
the system back into compliance)
(a) Slopes of the infiltration pond need to be grassed and stabilized to prevent
erosion.
(b) Trash has been accumulating inside the basin, this must be removed so the
Infiltration Pond can function as it was designed to do. The trash is also an eye
sore and hazard to persons in the area.
(c) Maintenance must be performed on a routine basis to the Infiltration Pond.
This is clearly stated in the Stormwater Permit that was issued to you on
September 21, 2000.
Inspector: Gary H. Beecher
Water Quality/Wilmington Regional Off ice/[phone] Ext. 222
RSS/ghb: S:1WQSISTORMWATIINSPECT1000631.Nov03

OF WA7-6R Michael F. Easley, Governor
_ Q William G. Ross Jr., Secretary
�Q G North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E.,Director
Division of Water Quality
Coleen H. Sullins, Deputy Director
Division of Water Quality
November 25, 2003
Mr. john Thomas, Owner
Thomas Management
PO Box 15127
Surfside Beach, SC 29587
NOTICE OF INSPECTION AND NON-COMPLIANCE
Kentucky Fried Chicken
Stormwater Project No. SW8 000631
New Hanover County
Dear Mr. Thomas:
Please find attached a copy of the completed form entitled "Stormwater Compliance
Inspection Report". The report summarizes the findings of a recent inspection of the
project's stormwater controls conducted on November 21, 2003 to determine
compliance with Stormwater Permit Number SW8 000631 issued on September 21,
2000.
A summary of the findings and comments are noted under Section 4 of the report.
Please inform this Office in writing before December 21,.2003, of the specific actions
that will be undertaken and the time frame required to correct the deficiencies. Failure to
provide the requested information, when required, may initiate enforcement action. If
you have any questions please contact me at the Wilmington Regional Office, telephone
number [phone].
Sincerely,
Gary H. Beecher
Environmental Technician
RSS/ghb: S:IWQSISTORMWATIINSPECT1000631.Nov03
cc: consultant
Wilmington Regional Office
Gary H. Beecher
N. C. Division of Water Quality 127 Cardinal Drive Extension [phone] Customer Service_ _
Wilmington Regional Office Wilmington, NC 28405 [phone] Fax [phone] INCDEh'R

�'
.� �.y'� M � 4 � y` '. • 4

STORMWATER COMPLIANCE INSPECTION REPORT
Project Name
Kentucky Fried Chicken
Project Number: 000631 Control Measure: infiltration basin
Water Body: Howe Creek Classification:- "SA ORW"
Directions to site, address: 6826 Market Street, Wilmington
2. Inspection Date: November 21, 2003
Weather Conditions: dry and sunny
3. Compliance Issues:
Y N
❑ ❑ The drainage area (including offsite) and built -upon area to the permitted
system are per the approved plan. No unpermitted offsite drainage enters
the system.
❑ ❑ All the built -upon area associated with the project is graded such that the
runoff drains to the system.
❑ ❑ For ponds/infiltration, the outlet/bypass structure relative elevations are
per the approved plan. (Must be verified via as -built survey if in question).
❑ ❑ The inlets and outlet structure are located per the approved plans and do
not cause short-circuiting.
❑ ❑ A trash rack is provided over the outlet weir and orifice.
❑ X All slopes are grassed with permanent vegetation and are not eroding.
❑ ❑ Vegetated slopes are no steeper than 3:1,
❑ ❑ The approximate amount of permitted surface area has been provided.
(Must be verified via as -built survey or designer's certification.)
❑ ❑ Required drawdown devices are correctly sized per the approved plans.
All required design depths are provided.
❑ ❑ All required parts of the system are provided, such as a vegetated shelf,
and a forebay.
❑ ® The designer's certification has been submitted.
❑ ❑ The required deed restrictions are correctly recorded and submitted.
❑ ❑ The number of lots or outparcels is per the permitted amount.
❑ ❑ The built -upon area on the lots or outparcels does not appear to exceed
the maximum amount (must be verified via as -built survey if in question)
❑ ❑ Curb outlet swales are constructed, located properly, are 100' long and
have dense vegetated cover.
❑ ❑ The road, cul-de-sac, parking lot and sidewalk widths are per the
approved plan.
❑ ® Required maintenance is being performed.
❑ ❑ Outparcels have their own offsite permit.
❑ ❑ For low density projects, roadside swales are 3:1, vegetated and stable.
❑ ❑ For low density projects, there are no unpermitted pipes on the project.

6�
4. Required Actions: (Explain each deficiency and what needs to be done to bring
the system back into compliance)
(a) Slopes of the infiltration pond need to be grassed and stabilized to prevent
erosion.
(b) Trash has been accumulating inside the basin, this must be removed so the
Infiltration Pond can function as it was designed to do. The trash is also an eye
sore and hazard to persons in the area.
(c) Maintenance must be performed on a routine basis to the Infiltration Pond.
This is clearly stated in the Stormwater Permit that was issued to you on
September 21, 2000.
Inspector: Gary H. Beecher
Water Quality/Wilmington Regional Officel(910) 395-3900
RSSlghb: S:IWQSISTORMWATIINSPECT1000631.Nov03

Kentucky Fried Chicken
New Hanover County
Stormwater Project No. SW8 000631
Designer's Certification
I, , as a duly registered in
the State of North Carolina, having been authorized to observe (periodically 1 weekly 1
full time) the construction of the project,
(Project)
for (Project Owner) hereby state that, to the
best of my abilities, due care and diligence was used in the observation of the project
construction such that the construction was observed to be built within substantial
compliance and intent of the approved plans and specifications.
Required Items to be checked for this certification to be considered complete are on
page 2 of this form.
Noted deviations from approved plans and specifications:
SEA!_
Signature
Registration Number
Date
cc: NCDENR DWQ Regional Office

inspector, county County Building Inspector
Certification Requirements:
The drainage area to the system contains approximately the permitted
acreage.
2. The drainage area to the system contains no more than the permitted
amount of built -upon area.
3. All the built -upon area associated with the project is graded such that the
runoff drains to the system.
4. The outlet/bypass structure elevations are per the approved plan.
5. The outlet structure is located per the approved plans.
6. Trash rack is provided on the outlet/bypass structure.
7. All slopes are grassed with permanent vegetation.
8. Vegetated slopes are no steeper than 3:1.
9. The inlets are located per the approved plans and do not cause short-
circuiting of the system.
10. The permitted amounts of surface area and/or volume have been
provided.
11. Required drawdown devices are correctly sized per the approved plans.
12. All required design depths are provided.
13. All required parts of the system are provided, such as a vegetated shelf,
and a forebay.
14. The dimensions of the system, as shown on the approved plans, are
provided.
CC" NCDENR-DWQ
inspector, county County Building Inspector
5

Beth Easley Wetherill, CPESC
SW8000b3!
New Hanover County'
Engineering Department
230 Market Place Drive - Suite
Wilmington, North Carolina' 2
Rhone: [phone]/Fax: (91VJ-IJU-,,,,, _
Email: [e-mail] -
Soil Erosion Specialist
SEDIMENTATION INSPECTION REPORT
Project Grading Permit #: '? — a O
Project: % Project Location:
Person(s)Financia!ly Responsible c,. c ", T c.., e., f
Address: O o ?c . /_.S/ 2 7— - SurJf.:l c _ 6rvcI— ) S'G 7
1. Pictures: Yes � # Weather & Soil Conditions:��
2,..
.. is site currently under Notice of Violation: Yes (@
3. Is the site in compliance with NHC Soil Erosion & Sedimentation Control Ordinance? Yeso Circle violations below:
4. Violations: (Circle Ietter)
(A) No approved plan. (B) Failure to follow approved plan. (C) Failure to submit revised plan.
(D) Failure to provide adequate ground cover. (E) Insufficient measures to retain sediment on site,
(F) Failure to take all reasonable measures. (G) Inadequate buffer zone. (H) Graded slopes & fills too steep.
Unprotected exposed slopes. (7) Failure to maintain erosion control measures. (K) NPDES Problems
(L) Other (describe)
5. Has off -site sed€mentation occurred since last inspection? Yes o Degree: Slight Moderate Severe
6. Contact made with Title:
Inspection report give ent,CC YL S
7. Inspection Report sent to person(s) responsible:, ,Sa �., `�i�ab -1 Date seat 8' rZ u3
8, Corrective Acdo s Needed: r r
�� l 1 Z G �y �/S e I/ 1�►, e ti N t�' G 1 L F� Q n oC /M LC/�+ !.�/G. P 43 .I rC�/h 4
Report By: -,��svt-UJ_i�hl d-Ir - Date:' 8%% t13 _ Others present:
Time to Comply:

of w A r�R
`0
6-
co 7
D `C
Mr. John Thomas, Owner
Thomas Management
PO Box 15127
Surfside Beach, SC 29587
Michael F. Easley, Governor
William G. Ross, Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E., Director
Division of Water Quality
Wilmington Regional Office
November 21, 2002
Subject: COMPLIANCE INSPECTION
Kentucky Fried Chicken
_ 6826 Market Street
Stormwater Project No. SW8 000631
New Hanover County
Dear Mr. Thomas:
Please find attached a copy of the completed form entitled "Stormwater Compliance
Inspection Report". The report summarizes the findings of a recent inspection of the project's
stormwater controls conducted on November 18, 2002 to determine compliance with Stormwater
Permit Number SW8 000631 issued on September 21, 2000.
A summary of the findings and comments are noted under Section 4 of the report. Please
inform this Office in writing before December 21, 2002 of the specific actions that will be
undertaken and the time frame required to correct the deficiencies. Failure to provide the
requested information, when required, may initiate enforcement action. If you have any questions
please contact me at the Wilmington Regional Office, telephone number [phone].
Sincerely,
4'716&11
Linda Lewis
Environmental Engineer
RSS/:arl S:1WQSISTORMWAT\INSPECT1000631.NOV
cc: John Hazelton, P.E.
Wilmington Regional Office
Now
NCDENR
N.C. Division of Water Quality 127 Cardinal Drive Extension Wilmington, N.C. 28405 [phone] Fax [phone] Customer Service
800-623-7748

STOR INVATER COMPLIANCE INSPECTION REPORT
1. Project Name: Kentucky Fried Chicken - 6826 Market Street
Project Number: SW8 000631 Control Measure: an infiltration basin
Water Body: Howe Creek Classification: SA ORW
Directions to site, address: 6826 Market Street, Wilmington
2. Inspection Date: November 18, 2002
Weather Conditions: sunny & cool
3. Compliance Issues:
a. Sediment has accumulated in the spreader mechanism.
b. Trash is accumulating in the basin.
C. The slopes on the north side need to be stabilized and vegetated.
d. The City has asked you several times to fix the erosion and vegetate the basin,
beginning in September.
e. The required Designer's certification has not been submitted.
4. Required Actions:
a. Remove the sediment and trash, vegetate the bare slopes, and stabilize the basin,
as required by Section H, part 3 of your permit.
b. Submit the required Designer's Certification.
Inspector: Linda Lewis
Water Quality/Wilmington Regional Office
[phone]
RSS/:arl S:1WQSISTORMWATIINSPECT100063I.NOV

�1OVER coG
9j� .r�.� Q•0 f..�► f 11
��NORIN�P
New Hanover County
Engineering Department
414 Chestnut Street
Wilmington, North Carc
[phone]
Beth Easley Wetherill, CPESC -"'----
Soil Erosion Specialist SEDIMENTATION INSPECTION REPORT
Project Grading Permit #: 3-7 -
a
Project: k% e!, 1 4, C _Project Location: .,Al l•.
Person(s) Financially Responsible 6Ipmn _r 1 =r.1 IF c-1
Address: Ao' or.,-'e t-r-iz."7 7
l . Pictures: Yes 69 # Weather &Soil Conditions: G `f °
2. Is site currently under Notice of Violation: Yes ii
3, Is the site in compliance with NHC Soil Erosion S& Sedimentation Control Ordinance? Yes N— Circle violations bel
4. Violations: (Circle letter)
(A) No approved plan. (B) Failure to follow approved plan. (C) Failure to submit revised plan.
(D) Failure to provide adequate ground cover. (E) Insufficient measures to retain sediment on site.
(F) Failure to take all reasonable measures. (G) Inadequate buffer zone. (H) Graded slopes & fills too steep.
(1) Unprotected exposed slopes. (J) Failure to maintain erosion control measures. (K) NPDES Problems
(L) Other (describe)
5. Has off -site sedimentation occurred since last inspection? Yes No Degree: Slight Moderate Severe
b. Contact made with A Title:
Inspection report given! ent Lt aoLo�--
7. inspection Report sent to person(s) responsible: J a I^ A Date sent 1 o ? oZ
8. Corrective Actions JNeeded:
..r �j.:,i'!Uh ¢I� (T�L' IK�t�d�/4�/Vn. �rr_1'/.� �SL4�>�i. �1CY..�/_7�f1 (i�C'tE'f P•,�(iff//`��� ,,{
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-- _ 5� -y la, A V 'L_ 1P 4611 T .r �n `% ^ r „� � �, � �sy t/ _r f
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>' e_ of ! ✓ w ..S' �� �/L / l i V % C p... 17�'i�� i', �C..� $ .� f .�
Report By:.. %�� Y r f" 1 r� �. rDate: Others present:)
Time to Comply:

OYER COGy�t 1
New Hanover County
* * Engineering Department
Q
414 Chestnut Street
���NOA7H�Pf• Wilmington, North Carolina 2840I
[phone]
Beth Easley Wetherill, CPESC
Soil Erosion Specialist SEDIMENTATION INSPECTION REPORT
Project Grading Permit #: 37 - 6 0
Project: k en �u c•ic� ; e k � �.
_ Gln _t_�. _ Project Location: T,- 4 e f- S
Person(s) Financially Responsible -7—A -.n p s /` l5 ^ Q 7 a .r. e., -/" _
Address:_..Po. /SoX. IS1 Z") _- S��oCs%�L e - Qtc,ct.) .SC. 2`is3� _.
1. Pictures: Yes ®o # Weather &.Soil Conditions:_ C/4, .4 '7_ -7 c
2. is site currently under Notice of Violation: Yes ,lam
3. Is the site in compliance with NHC Soil Erosion & Sedimentation Control Ordinance? Yes Circle violations belo
4_ Violations: (Circle letter)
(A)No approved plan. (B) Failure to follow approved plan. (C) Failure to submit revised plan.
Failure to provide adequate ground cover. (E) insufficient measures to retain sediment on site.
Failure to take all reasonable measures. (G) Inadequate buffer zone. (H) Graded slopes & fills too steep.
(( Unprotected exposed slopes. (j) Failure to maintain erosion control measures. (K) NPDES Problems
(L) Other (describe)
5. Has off -site sedimentation occurred since last inspection? Yes ig Degree: Slight Moderate Severe
6. Contact made with _ Title:
Inspection report givsen
Li n-J-a- Le,-C� i.5 -
as -4, e,--
7. Inspection Reportsent to persons) responsible: Jd 11
r �, o �H � _
Date sent - `j �2 Z
8. Corrective Actions Needed:
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Report By: �Q v -C (3 e,r "- Date: `Y f 816 z Others present:
V,Q -k IA),! -)N er i N
Tire to Comply:

INFILTRATION BASIN ANALYSIS
DATE:
21 -Sep-2000
PROJECT NAME:
Kentucky Fried Chicken
DRAINAGE BASIN:
Cape Fear
RECEIVING STREAM:
Howe Creek
Index No.:
18-87-32
SITE AREA 1.012 acres
IMPERVIOUS AREA CALCULATION
BUILDINGS
PARKING/ASPHALT
CONCRETE
OTHER
% IMPERVIOUS, 1=
. 207/
ELEVATION OF SEASONAL HIGH WATER TABLE
REPORTED INFILTRATION RATE
SURFACE AREAS AND ELEVATIONS
FILENAME: S:\WQS\INBASIN\000631.WK1
PROJECT #- 000631
REVIEWER: SAV
CLASS: SA ORW
If ORW, is site within the 575'AEC? NO
DRAINAGE AREA: or
Elev. (ft) Area
BOTTOM 43 2757 SQUARE FEET
SQUARE FEET
SQUARE FEET
STORAGE 48 5824 SQUARE FEET
VOLUME / DEPTH / DRAWDOWN CALCULATION
DESIGN STORM, INCHES
DESIGN VOLUME
TOTAL VOLUME AVAILABLE
DEPTH OF RUNOFF
TIME TO DRAWDOWN
CUBIC FEET
21452.1:5:ICU BIC FEET
FEET
"O]DAYS MUST BE <5
COMMENTS
Volume and drawdown are (not) within Design Requirements.

INFILTRATION BASIN EXAMPLE
DRAINAGE AREA = 5 ACRES
IMPERVIOUS AREA = 3 ACRES
PERCENT IMPERVIOUS, I = 60%
SOILS REPORT (provide the following elements, at a minimum)
SOLL TYPE
INFILTRATION RATE (given in inches per hour or cubic feet per hour per sf)
SHWT ELEVATION
REQUIRED VOLUME: (Simple Method is preferred)
DESIGN STORM IS 1.5" (Project drains to SA waters)
DETERMINE Rv VALUE _ .05 + .009 (I) _ .05 + .009 (60) = .59
VOLUME REQUIRED = 1.5" X 1"112" X 5 ACRES X .59 X 43560=16,063 CF
VOLUME PROVIDED:
Choose a 3' storage depth
SURFACE AREA @BOTTOM = 60 X 90 = 5400 SQUARE FEET
SURFACE AREA @ STORAGE = 78 X 108 = 8424 SQUARE FEET
BOTTOM ELEVATION = 11 (AT LEAST T ABOVE SHWT)
STORAGE ELEVATION = 14
VOLUME PROVIDED ={ (5400 + 8424) / 2) x (14 - 11)
=20,736 CUBIC FEET (z 16,063) OK
DRAWDOWN TIME
TOTAL VOLUME - BOTTOM SURFACE AREA _ INFILTRATION RATE
CONVERT 10"/ HR TO .83 CUBIC FEETLHR/ FT OF SURFACE AREA
16,063 - 5400 - .83 = 3.6 HOURS (<_5 DAYS)
17