HomeMy WebLinkAboutSW7960108_CURRENT PERMIT_20061017STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW
HOC TYPE
� CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
DOC DATE
YYYYMMDD
QF 1N p` rEi9 Michael F. Easley, Govemor A�O
Q� William G. Ross Jr., Secretary
r— North Carolina Department of Environment and Natural Resources
❑ Alan W. Klimek, P.E. Director
Division of Water Quality
DIVISION OF WATER QUALITY
October 17, 2006
Mr. Richard Y. Tharrington
First Investment Associates of Elizabeth City, LLC
P.O. Box 7246
Rocky Mount, NC 27804
Subject: Permit No. SW7960108 Renewal
Hampton Inn Elizabeth City
High Density Stormwater Project
Pasquotank County
Dear Mr. Tharrington:
The Washington Regional Office received a completed Stormwater Renewal Application for the subject
project on September 15, 2006. Staff review of the files and an on site inspection has determined that the project will
comply with the Stormwater Regulations set forth in Title 15A NCAC 2H.1000. We are forwarding Permit No.
SW7960108 dated October 17, 2006 to First Investment Associates of Elizabeth City, LLC for a wet detention pond to
serve the Hampton Inn located at 402 Halstead Blvd. in Elizabeth City, NC.
This permit shall be effective from the date of issuance until October 17, 2016 and shall be subject to the
conditions and limitations as specified therein. Please pay special attention to the Operation and Maintenance
requirements in this permit. Failure to establish an adequate system for operation and maintenance of the stormwater
management system will result in future compliance problems. The issuance of this permit does not resolve any
previous violations of the stormwater rules for construction without a permit.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to
request an adjudicatory hearing upon written request within thirty (30) days following receipt of this permit. This
request must be in the form of a written petition, conforming to Chapter 150E of the North Carolina General Statutes,
and filed with the Office of Administrative Hearings, 6714 Mail Service Center, Raleigh, NC 27699-6714. Unless such
demands are made this permit shall be final and binding.
If you have any questions, or need additional information concerning this matter, please contact Roger
Thorpe or me at (252) 946-6481,
1'c
e,ely,
AI Hodge, Regional Supervisor
Surface Water Protection Section
Washington Regional Office
cc: Hyman & Robey, PC
vvrvashington Regional Office
Central Files
North Carolina Division of Water Quality Internet: ww.newateinualit+ r, One
943 Washington Square Mall Phone (252) 946.6481 NorthCarolina
Washington NC 27989 Fa.v (2521 946-9215 ;Vaturallry
DIVISION OF WATER QUALITY
PROJECT DATA
Project Name:
Hampton Inn Elizabeth City
Permit Number:
SW7960108
Location:
Pasquotank County
Appiicant:
First Investment Associates of Elizabeth City, LLC
Mailing Address:
PO 7246
Rocky Mount, NC 27804
Application Date:
5/2/2006 (original)
Receiving Stream:
UT to Knobbs Creek
Classification of Water Body:
C
Total Site Area:
2.44 ac
Drainage area:
2.44 ac
Total impervious allowed:
1.58 ac
Wet Pond Depth:
6.0 ft
Required Storage Volume:
6,127 cf
Provided Storage Volume:
8,250 cf
Required Surface Area:
2,870 sf
Provided Surface Area:
2,892 sf
Controlling Orifice:
1.75 inch @ elevation 6.0 ft
State Stormwater Management Systems
Permit No. SW7960108
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
STATE STORMWATER MANAGEMENT PERMIT
HIGH DENSITY DEVELOPMENT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as amended, and
other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
First Investment Associates of Elizabeth City, LLC
Hampton Inn Elizabeth City
1. Pasquotank County
FOR THE
continued, operation and maintenance of stormwater management systems in compliance with the provisions of 15A
NCAC 2H.1000 (hereafter referred to as the "stormwater rules') and the approved stormwater management plans
and specifications and other supporting data as attached and on file with and approved by the Division of Water
Quality and considered a part of this permit for a wet detention pond to serve the Hampton Inn located at 402
Halstead Blvd. in Elizabeth City, NC.
This permit shall be effective from the date of issuance until October 17, 2016 and shall be subject to the following
specified conditions and limitations:
DESIGN STANDARDS
1. This permit is effective only with respect to the nature and volume of stormwater described in the application
and other supporting data.
2. This stormwater system has been approved for the management of stormwater runoff as described on page
2 of this permit, the Project Data Sheet.
3. A maximum of 1.58 acres of built upon area is allowed.
4. All stormwater collection and treatment systems must be located in either dedicated common areas or
recorded easements. The final plats for the project will be recorded showing all such required easements, in
accordance with approved plans.
5. Approved plans and specifications for this project are incorporated by reference and are enforceable parts of
the permit.
6. No homeowner/lot owner/developer shall be allowed to fill in, alter, or pipe any vegetative practices (such as
swales) shown on the approved plans as part of the stormwater management system without submitting a
revision to the permit and receiving approval from the Division.
7. The following items will require a modification to the permit:
a. Any revision to the approved plans, regardless of size
b. Project name change
c. Transfer of ownership
d. Redesign or addition to the approved amount of built-upon.area
e. Further subdivision of the project area.
In addition, the Director may determine that other revisions to the project should require a modification to the
permit..
8. The Director may notify the permittee when the permitted site does not meet one or more of the minimum
requirements of the permit.' Within the time frame specified in the notice, the permittee shall submit a written
time schedule to the Director for modifying the site to meet minimum requirements. The permittee shall
provide copies of revised plans and certification in writing to the Director that the changes have been made.
II. SCHEDULE OF COMPLIANCE
The permittee will comply with the following schedule for construction and maintenance of the stormwater
management system.
a. The stormwater management system shall be constructed in its entirety, vegetated and operational
for its intended use prior to the construction of any built -upon surfaces except roads.
b. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be
repaired immediately.
The facilities must be properly maintained and operated at all times. The approved Operation and
Maintenance Plan must be followed in its entirety and maintenance must occur at the scheduled intervals.
The permittee shall at all times provide the operation and maintenance necessary to assure time permitted
stormwater system functions at optimum efficiency including, but not limited to:
a. Semiannual scheduled inspections (every 6 months)
b. Sediment removal
C. Mowing and revegetation of side slopes
d. Immediate repair of eroded areas
e. Maintenance of side slopes in accordance with approved plans and specifications
f. Debris removal and unclogging of outlet structure, orifice device and catch basins and piping.
4. Records of maintenance activities must be kept and made available upon request to authorized personnel of
DWQ. The records will indicate the date, activity, name of person performing the work and what actions were
taken.
5. This permit shall become voidable unless the facilities are constructed in accordance with the conditions of
this permit, the approved plans and specifications, and other supporting data.
6. Upon completion of construction and prior to operation of this ;permitted facility, a certification must be
received from an appropriate designer for the system installed certifying that the permitted facility has been
installed in accordance with this permit, the approved plans and specifications, and other supporting
documentation. Mail the Certification to the Washington Regional Office, 943 Washington Square Mall,
Washington, North Carolina, 27889, attention Division of Water Quality.
A copy of the approved plans and specifications shall be maintained on file by the Permittee for a minimum of
five years from the date of the completion of construction.
Ill. GENERAL CONDITIONS
This permit is not transferable. In the event there is a desire for the facilities to change ownership, or there is
a name change of the Permittee, a formal permit request must be submitted to the Division of Water Quality
accompanied by an application fee, documentation from the parties involved, and other supporting materials
as may be appropriate. The approval of this request will be considered on its merits and may or may not be
approved.
2. Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to
enforcement action by the Division of Water Quality, in accordance with North Carolina General Statute 143-
215.6(a) to 143-215.6(c).
3. The issuance of this permit does not preclude the Permittee from complying with any and all statutes, rules,
regulations, or ordinances which may be imposed by other government agencies (local, state, and federal)
which have jurisdiction.
4. In the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions, the
Permittee shall take immediate corrective action, including those as may be required by this Division, such as
the construction of additional or replacement stormwater management systems.
5. The permit may be modified, revoked and reissued or terminated for cause. The filing of a request for a
permit modification, revocation and reissuance or termination does not stay any permit condition.
6. The Permittee, at least six (6) months prior to the expiration of this permit, shall submit in writing a request for
an extension along with appropriate application fee.
Permit issued this the 17 th day of October, 2006.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
r
far Alan W. Klimek, P.E. Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number SW7960108
Project Name; kAq- i'1W`17 n \-Ll-n-- IJMslff-A by t KCounty
Stormwater Permit No. SW7�b<� RUMMEL
MAR 2 4 2006
Designer's Certification
DWQ-WARO
[, <- , as a duly i� irl .�
Registered Professional Engineer in the State of North Carolina, having been authorized to observe
(periodical lylweeklylfuli time) y 1' �L ' —
the construction of the project, t VY) t � 1 SYY1
(Project)
far _ C Project Owner
i �S+ �►-}VeS'fimerrl- ,bC C1-�- � k-ca � (° d--."i , t._LL
hereby state that to the best of my abilities, due care and diligence was used in the b6servation of
the project construction such that the construction was observed to be built within substantial
compliance and intent of the approved plans and specifications.
Registration Number. /t�SSO
Date
CA1101����ii��%
♦ �,�FESSi .��
SEAL
Lasso f
C.
0.
Pat McCrory
Governor
NCDENR
North Carolina Department of Environment and Natural Resources
June 2, 2014
First Investment Associates of Elizabeth City, LLC
Mr. Richard Tharrington
PO Box 7246
Rocky Mount, NC 27804
Subject: NOTICE OF INSPECTION
Permit No. SW7960108
Hampton Inn Elizabeth City
Pasquotank County
Dear Mr. Tharrington:
John E. Skvarla, 111
Secretary
On May 29, 2014, 1 inspected the Hampton Inn development, located at 402 Halstead Boulevard in
Elizabeth City to determine compliance with Stormwater Management Permit Number SW7960108, which
was issued on October 17, 2006. The DWQ site inspection revealed that the project is in substantial
compliance with the approved permit (see note below). Please see attached Inspection report also.
• At this point the condition of the wet pond is satisfactory; however some preventive maintenance
(i.e, removal of trash, vegetation and sediment) will be needed in near future. Our suggestion
would be to undertake some corrective actions to avoid more costly maintenance in future.
Thank you for your attention to this matter.
Please be advised that you are required to comply with the terms, conditions and limitations of your
Stormwater Management Permit under Title 15A North Carolina Administrative Code 2H .1003 and North
Carolina General Statute 143-214.7, including operation and maintenance of your permitted stormwater
system.
Sincerely,
Samir Dumpor, P.E.
Environmental Engineer
cc: Steven Horvath, Public Utilities Engineer, City of Elizabeth City
V/WaRO Files
Division of Energy, Mineral, and Land Resources . Land Quality Section
Washington Regional Office
943 Washington Square Mall, Washington, North Carolina 27889 • Phone: 252-946-64811 FAX: 252-975-3716
Internet: httoJipodal,ncdenr.org/web/Iriland-quality
An Equal Opportunity l Affirmative Action Employer — 50% Recycled l 10% Post Consumer raper
Compliance Inspection Report
Permit: SW7960108 Effective: 10/17/06 Expiration: 10/17/20 Owner: LFirst LC Investment Associates Of Elizabeth City
Project: Hampton Inn - Halstead Blvd
County: Pasquotank
Region: Washington
Contact Person: Richard Tharrington Title:
Directions to Project:
Type of Project: State Stormwater - HD - Detention Pond
Drain Areas: 1 - (Knobbs Creek) (03-01-50) ( C;Sw)
On -Site Re prose ntative(s):
Related Permits:
Inspection Date: 05129/2014 Entry Time: 02:15 PM
Primary Inspector: Samir Dumpor
Secondary Inspector(s):
Reason for Inspection: Routine
Permit Inspection Type: State Stormwater
Facility Status: ■ Compliant fl Not Compliant
Question Areas:
0 State Stormwater
(See attachment summary)
Exit Time: 02:45 PM
Phone:
Phone: 252-948-3960
Inspection Type: Compliance Evaluation
Page: 1
Permit: SW796010B Owner - Project: First Investment Associates Of Elizabeth City LLC
Inspection pate: 05/29/2014 Inspection Type: Compliance Evaluation Reason for Visit: Routine
Inspection Summary:
Project in substantial compliance with the stormwater permit. Pond cleaning will be necessary in near future.
File Review Yes No NA NE
Is the permit active? ■ n n n
Signed copy of the Engineer's certification is in the file? ■ n n n
Signed copy of the Operation & Maintenance Agreement is in the file? ■ n n n
Copy of the recorded deed restrictions is in the file? ■ n n n
Comment:
Built Upon Area
Yes No
NA
NE
Is the site BUA constructed as per the permit and approval plans?
■ n
n
n
Is the drainage area as per the permit and approved plans?
■ n
n
n
Is the BUA (as permitted) graded such that the runoff drains to the system?
■ n
n
n
Comment:
cur
vex rd—
u„
uC
Are the SW measures constructed as per the approved plans?
■ n
n
n
Are the inlets located per the approved plans?
■ n
n
n
Are the outlet structures located per the approved plans?
■ n
n
n
Comment:
Operation and Maintenance Yes No NA NE
Are the SW measures being maintained and operated as per the permit requirements? ■ n n n
Are the SW BMP inspection and maintenance records complete and available for review or provided to DWQ ■ n n n
upon request?
Comment:
Page: 2
Hyman & Robey, PC
Consulting'Engineers and LaSurveyors (252) 335-1888 0
nd tee
(252) 338-2913 Office
(252)338-5552 Fax
August 30, 2006
Mr. Roger Thorpe
Division of Water Quality SEP 15 2006
Department of Environment and Natural Resources
Washington Regional Office gy�pp,� pp®
943 Washington Square Mall DWQ-��pp��tl�PRlRO
Washington, North Carolina 27889
Subject: SW7960108
Hampton Inn - Elizabeth City
Dear Roger,
Pursuant to your letter dated July 17, 2006 to Mr. Richard Tharrington concerning
the Stormwater Permit Renewal for Hampton Inn -- Elizabeth City, NC, we have been
retained to supervise the cleanout of the stormwater pond.
Enclosed please find pictures taken during the cleanout of the pond. The pictures
show the amount of sediment being removed to return the pond to the design depth.
Also included are pictures showing the draw down device and the hole associated
with the 1-3/4" draw down orifice.
As of this date, all work has been completed and the exposed sides of the pond have
been seeded and covered with jute mate.
The fountain has been removed from the pond as it is not of adequate size to allow
the installation of even a small fountain.
Enclosed please find a new wet basin supplement and new application form. Should
you have any questions, please do not hesitate to call.
RespectfuII HICAfto,/*
•ppres5iN.9
QQ
SEAL —
18550
n .Ro y,PE
A
Atta
A O. Box 339, Camden, NC 27921
Permit No.
(to be provided by DWQ)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form may be photocopied for use as an original
DWQ Stormwater Management Plan Review:
A complete stormwater management plan submittal includes an application form, a wet detention basin
supplement for each basin, design calculations, and plans and specifications showing all basin and outlet
structure details.
I. PROJECT INFORMATION
Project Name: _Hamnrnn Tnn
Contact Person: D i 1 1 y Du n n Phone Number: ( 2 q 2) g 7_ g 1 1 1
For projects with multiple basins, specify which basin this worksheet applies to:
elevations
Basin Bottom Elevation
Permanent Pool Elevation
Temporary Pool Elevation 8.13
ft.
areas
Permanent Pool Surface Area 2 8 9 2
sq. ft.
Drainage Area
Impervious Area
volumes
Permanent Pool Volume
Temporary Pool Volume
Forebay Volume.
Other parameters
SA/DA I
Diameter of Orifice
Design Rainfall
Design TSS Removal 2
aC.
1 _ 31 ac.
(floor of the basin)
(elevation of the orifice)
(elevation of the discharge structure overflow)
(water surface area at the orifice elevation)
(on -site and off -site drainage to the basin)
(on -site and off -site drainage to the basin)
7224 cu. ft. (combined volume of main basin and forebay)
cu. ft. (volume detained above the permanent pool)
600 cu. ft. (approximately 20% of total volume)
2-7 (surface area to drainage area ratio from DWQ table)
_1 - 7 5 in. (2 to 5 day temporary pool draw -down required)
6.3 in. ( 10 yr )
_9n % (minimum 85% required)
Form SWU-102 Rev 3.99 Page i of 4
Footnotes:
When using the Division SAIDA tables, the correct SA/DA ratio for permanent pool sizing should be computed based upon the
actual impervious % and permanent pool depth. Linear interpolation should be employed to determine the correct value for non-
standard table entries.
2 In the 20 coastal counties, the requirement for a vegetative filter may be waived if the wet detention basin is designed to provide
901110 TSS removal. The NCDENR BMP manual provides design tables for both 8517o TSS removal and 90% TSS removal.
II. REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the Stormwater Best Management Practices Manual
(N.C. Department of Environment, Health and Natural Resources, February 1999) and Administrative Code
Section: 15 A NCAC 2H .1008,
Initial in the space provided to indicate the following design requirements have been met and supporting
documentation is attached. If the applicant has designated an agent in the Stormwater Management Permit
Application Form, the agent may initial below. If a requirement has not been met, attach justification.
Applicants Initials
a. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet),
__-__ b. The forebay volume is approximately equal to 20% of the basin volume.
c. The temporary pool controls runoff from the design storm event.
d. The temporary pool draws down in 2 to 5 days.
_____-_____ e. If required, a 30-foot vegetative filter is provided at the outlet (include non -erosive flow
calculations)
ahf. The basin length to width ratio is greater than 3:1.
PAh g. The basin side slopes above the permanent pool are no steeper than 3:1.
------------- h. A submerged and vegetated perimeter shelf with a slope of 6:1 or less (show detail).
i. Vegetative cover above the permanent pool elevation is specified.
W,b— j. A trash rack or similar device is provided for both the overflow and orifice.
— — — — — — — — — — — k. A recorded drainage easement is provided for each basin including access to nearest right-
of-way.
— — — — — — — — — — — 1. If the basin is used for sediment and erosion control during construction, clean out of the
r� basin is specified prior to use as a wet detention basin.
kc�1 m. A mechanism is specified which will drain the basin for maintenance or an emergency.
(pump)
III. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
The wet detention basin system is defined as the wet detention basin, pretreatment including forebays and the
vegetated filter if one is provided.
This system (check one) 0 does )Q does not incorporate a vegetated filter at the outlet.
This system (check one) 0 does )0 does not incorporate pretreatment other than a forebay.
Form SWU-102 Rev 3.99 Page 2 of 4
Attachment to WET DETENTION BASIN SUPPLEMENT
For Hampton Inn (Elizabeth City)
b. Project was designed in 1995 when the forebay was calculated at approximately
20% of the total surface area.
e. Pond has been designed for 90% TSS removal.
h. Perimeter shelf was not required at the time of permitting.
k. The pond is located entirely on the project property and discharges into the NC
Department of Transportation piped roadside drainage system. An encroachment
agreement was filed with the DOT.
Construction on this site was completed approximately nine years ago. The basin
was just restored to design depths as part of the permit renewal.
Maintenance activities shall be performed as follows:
After every significant runoff producing rainfall event and at least monthly:
a. Inspect the wet detention basin system for sediment accumulation, erosion, trash accumulation,
vegetated cover, and general condition.
b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs within
2 to 5 days as designed.
2. Repair eroded areas immediately, re -seed as necessary to maintain good vegetative cover, mow vegetative
cover to maintain a maximum height of six inches, and remove trash as needed.
3. Inspect and repair the collection system (i.e. catch basins, piping, swales, riprap, etc.) quarterly to maintain
proper functioning.
4. Remove accumulated sediment from the wet detention basin system semi-annually or when depth is
reduced to 75% of the original design depth (see diagram below). Removed sediment shall be disposed of
in an appropriate manner and shall be handled in a manner that will not adversely impact water quality (i.e.
stockpiling near a wet detention basin or stream, etc.).
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 4 _ �; feet in the main pond, the sediment shall be removed.
When the permanent pool depth reads 1. 5 feet in the forebay, the sediment shall be removed.
BASIN DIAGRAM
ill in the blanks)
Permanent Pool Elevation 6
Sediment Re oval EL 4.5 75 0
_____ Sediment Removal Elevation 75%
Bottom Ele ation - %--------------------------------------
Bottom Elevation 0._...__, 25%
FOREBAY MAIN POND
5. Remove cattails and other indigenous wetland plants when they cover 50% of the basin surface. These
plants shall be encouraged to grow along the vegetated shelf and forebay berm.
6. If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment through
the emergency drain shall be minimized to the maximum extent practical.
Form SWU-102 Rev 3.99 Page 3 of 4
7. All components of the wet detention basin system shall be maintained in good working order.
I acknowledge and agree by my signature below that I am responsible for the performance of the seven
maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any
changes to the system or responsible party.
Print name: Richard Y. Tharr;nQtDD
Title: Man ager/Member.__First Investment AssociatQs of R1 ; 7-aheth --City, LLC
Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a
resident of the subdivision has been named the president.
I, W;rn� a Notary Public for the State of -t\n l`.
County of %-Ik do hereby certify that
personally appeared before me this '`-day of ao66 , and acknowledge the due
execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal,
GRLA L WWC* M
Moray Pudic
Malt County
$Kft of Nam camew
PAr C.amffdabn EOM Mar 18, 7
SEAL
My commission expires :1 - I?- A0 0 ri
Form SWU- 102 Rev 3.99 Page 4 of 4
tole ai mw ccknlpo
mw ccfw
cvtav r MOON%"
POND VOLUME CALCULATIONS
FOR
SJHyman & Robey '061060562 - Hampton lnnlexcelIPOND VOLUME -CALCULATIONS (1 POND).xls
POND CALCULATIONS
AREA F2
PERMANENT POOL SURFACE AREA 2,892.15
MAIN BASIN SURFACE AREA
FOREBAY SURFACE AREA
AREA AT EDGE OF MAIN BASIN SHELF
AREA OF MAIN BASIN BOTTOM
AREA AT EDGE OF FOREBAY SHELF
AREA OF FOREBAY BOTTOM
SURFACE AREA AT 1" STORAGE
PP ELEVATION
ELEVATION AT EDGE OF MAIN BASIN SHELF
ELEVATION OF MAIN BASIN BOTTOM
ELEVATION AT EDGE OF FOREBAY SHELF
ELEVATION OF FOREBAY BOTTOM
ELEVATION OF 1 " STORAGE
2,267.74
624.41
978.29
191.68
267.41
40.63
4,854.36
F
VOLUME CALCULATIONS F3
MAIN BASIN VOLUME 6,624.00
FOREBAY VOLUME 599.93
PERMANENT POOL VOLUME 7,223.93
FOREBAY PERCENTAGE OF TOTAL PERMANENT POOL VOLUME 8.30%
TEMP. STORAGE VOLUME (1" RUNOFF) 8,250.03
TEMPORARY STORAGE OFFSET
SLOPE (EX: IF 3:1 ENTER 3) 3.00
OFFSET FROM PP 6.39
BASIN DIAGRAM CALC
MAIN POND
SEDIMENT REMOVAL ELEVATION 1.50
PP DEPTH READS ... SEDMENT SHALL BE REMOVED 4.50
FOREBAY
SEDIMENT REMOVAL ELEVATION 4.50
PP DEPTH READS ... SEDMENT SMALL BE REMOVED 1.50
8/29/2006 9:23 AM PAGE 1 OF 1
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