WQ0004240_More Information Received_20190319

INITIAL REVIEW
Reviewer
Project Number*
Thornburg, Nathaniel
WQ0004240
SUBMITTAL DATED: 3/11/2019
Project Contact Information
Rease provide inforrration on the person to be contacted by NDB Staff regarding electronic subnittal, confirmation of receipt, and other issues.
......................................................................................................................................................................................................................................................................................................................................................................................................
Name * Timothy Lawrence
Email Address*
[e-mail]
Project Information
Application Type* r
New
r
Renewal
r
Annual Report
Permit Type * r
Wastewater Irrigation
r
Other Wastewater
r
Closed -Loop Recycle
r
Single -Family Residence
Wastewater Irrigation
Is a paper copy of the application being submitted?*
r Yes r Nor N/A
Permit Number* WQ0004240
Permittee * USMC MCAS Cherry Point
Facility Name * MCALF Bogue WWTF
Phone Number*
252-808-7488
r Modification (Major or Minor)
r Additional Information
r Other
r High -Rate Infiltration
r Reclaimed Water
r Residuals
r Other
Please provide comments/notes on your current submittal below.
The attached files are provided to cover the process and staging on the liner replacement project for noted permitted
facility. This is not an application but additional requested information per phone conversation with Tessa Monday.
Please attach all information required or requested for this submittal to be review here.
Application Form Engineering Rans, Specifications, Calculations, Hc.)
Bogue Liner Replacement Package 3-11-19.pdf 6.06MB
Upload only 1 RDF document. IVUltiple documents nust be corrbined into one RDF file.

For nein and modif cation permit applications, the paper copy is required to be submitted to the
Di, risiom Be advised, applications will not be considered complete until both the paper and electronic
applications. have been received_ The paper copy shall include the follm ging:
• Application Farm
• All relevant attachments (talcs, soils report, specs, etc_)
• 1 full-size engineering plan set
• 2 11-17" engineering plan sets
• 1 extras set of specifications (in addition to the set of specifications Provided in the
attachments)
• Fee (if required)
This shall be mailed to the following address:
By US_ Postal Service-
Di,vision of Water Resources- Non -Discharge Branch
1617 Mail Service Center Raleigh NC 27699-1617
By Courier, -Special Delivery:
Division of Water Resources- Non -Discharge Branch
Nathaniel Thornburg- 9th Floor, Office #942M
512 N_ Salisbury St_ Raleigh, NC 27644
For questions or problems contact Tessa Monday at 919.7073660 or Tessa_X%nday(dncdem_gov or
Sonia Graves at 919.707.3657 or Sonia Graves(dpcdenr.gov.
*140 By checking this box I am acknowledging that I have read the above statement and agree
to send these documents as required to one of the address given above.
Signature
Submission Date 3/11/2019

Dewberr
:"' ;;
February 14, 2019
Ms. Tessa Monday
NC DEQ
Division of Water Resources — Non -Discharge Branch
1617 Mail Service Center
Raleigh, NC 27699-1617
Dewberry Engineers Inc. 434.797.4497
551 Piney Forest Road 434.797.4341 fax
Danville, VA 24540 www.dewberry.com
RE: Repair and Improve Bogue Field Wastewater Treatment System, MCASCP
Dear Ms. Monday,
The Marine Corp Air Station has chosen to design and construct, improvements to the Bogue Wastewater
System. Please review the attached design plans and specifications and let us know of any comments you
may have. The system to be repaired comprises of an approximately 1,000,00o gallon facultative lagoon
and a 450,000 gallon polishing pond followed by chlorine addition and spray land application of treated
effluent.
As a part of this project, the synthetic liners in both the facultative lagoon and polishing pond will be
replaced. In addition, a new spray application field that was previously permitted in 2014 will be
constructed.
As mentioned in previous conversations with NC DEQ, Division of Water Resources Non -Discharge
Branch, the Government plans to keep the treatment system in service during construction. As described
in the Sequence of Construction on Sheet CU9o1 of the contract drawings, the construction will be phased
so that one of basins will be in service while the other basin is being renovated.
During 2017, the average daily influent flow was 11,432 gpd. During the first phase of construction, the
lagoon will be taken out of service and the influent forcemain temporarily rerouted to the polishing pond.
Considering the 2017 daily influent flow average, this will provide a treatment detention time of 39 days.
During the second phase of work during which flow will be redirected back into the relined facultative
basin, the treatment detention time will be 87 days. Based on review of design criteria for facultative
treatment systems, we expect this temporary mode of operation will produce effluent that will achieve
compliance with permit limits. However, in the event that effluent quality is not being maintained, the
construction contract will include a unit price for the contractor to pump and haul wastewater to the
Cherry Point MCAS wastewater treatment plant.
While the lagoon system is in construction, the government will continue to monitor and report all
conditions set forth in permit WQ0004240.
Sincerely,
R. Scott Ehrhardt, PE
Senior Associate I Project Manager
Page 1 of 1

Table of Contents
1 OVERVIEW........................................................................................................................................... 2
2 ASSUMPTIONS AND DESIGN CRITERIA..........................................................................................2
2.1 Bogue Lagoon Treatment Facility................................................................................................... 2
3 EXISTING SITE CONDITIONS.............................................................................................................2
4 FACULTATIVE LAGOONS..................................................................................................................3
4.1 Demolition........................................................................................................................................ 3
4.2 New Work........................................................................................................................................ 3
5 IRRIGATION SPRAY FIELD................................................................................................................5
5.1 Demolition........................................................................................................................................ 5
5.2 New Work........................................................................................................................................ 6
6 PERMITTING........................................................................................................................................6
6.1 Sedimentation and Erosion Control................................................................................................ 6
6.2 Additional Permits............................................................................................................................ 6
Dewberry- WO# REPAIR AND IMPROVE BOGUE FIELD WASTEWATER TREATMENT SYSTEM, MCASCP
Y (CP19Eo1M&R) j
Prefinal (go%) Submittal — Basis of Design] March ii, 2oig 1 1

OVERVIEW
The Bogue Wastewater Lagoon and Spray field system provides wastewater treatment to the Marine
Corps training facility. During peak times of the year the average influent flow to the lagoon is
roughly 15,000 gpd. In 2017, from May -December, average influent flow to the lagoon was
approximately 11,000 gpd.
The lagoon liner will be replaced in both the lagoon and polishing pond. This will require each pond
to be taken out of service for approximately 6o days during construction. Also, the lagoon spray field
will be expanded to nearly twice its current size. In its most recent permit renewal, the effluent flow
limit was changed from a maximum daily limit of 18,000 gpd to an annual limit of 6,570,000 gallons
per year. This limit allows Bogue to spray apply in excess of 18,000 gpd when necessary since most
days the influent flow is much less than 18,000 gpd. By installing a second field, this will allow the
facility to drawdown the level in the lagoons when necessary in advance of higher flow periods
and/or onset of inclement weather which will limit application. During the last permit renewal, the
operation of a new 3.5 acre spray field was authorized, however, the annual application limit of
6,570,000 remains unchanged.
2 ASSUMPTIONS AND DESIGN CRITERIA
2.1 Bogue Lagoon Treatment Facility
• Current Permitted Discharge Flow = 6,570,000 gallons/year (average equivalence=18,000 gpd)
• Current average daily flow = 11,000 gpd
• Nominal volume of Lagoon (normal water)=1,000,000 gallons
• Nominal volume of Polishing Pond (normal water)= 350,000 gallons
• Disinfection; Design flow rate = 200 gpm, tablet chlorination
• Spray field pump station; Design flow = 200 gpm
• Current Spray Field Size = 4 acres, to total sprinkler heads
• New Proposed Spray Field addition = 3.5 acres, 9 total sprinkler heads
3 EXISTING SITE CONDITIONS
The existing site is located at MCALF Bogue, adjacent to the airfield. The wastewater treatment
system treats influent from the various buildings located at the landing field. Wastewater is pumped
from a nearby lift station through a 4" force main to the rawsewage lagoon.
The existing lagoon site is enclosed by chain link fence and is approximately 3.8o acres in area. The
majority of the site is grassed, with the exception of the raw sewage lagoon, polishing pond,
chlorinator building, and lift station. The site slopes gently away from the top banks of the lagoon
and pond (between 6:1 and 12:1 slopes) to each of the corners of the site.
The treated wastewater from the lagoons is pumped via force main to an adjacent 4 acre spray field.
The spray field is grassed and consists of ten, approximately 70 foot radius, spray areas with
sprinklers. An additional 3.5 acre wooded area to the north and west of the existing spray field is
proposed for spray field expansion. The spray field areas slope gently to the south west towards
Hunting Island Creek.
Dewberry- WO# REPAIR AND IMPROVE BOGUE FIELD WASTEWATER TREATMENT SYSTEM, MCASCP
Y (CP19Eo1M&R) J
Prefinal (go%) Submittal — Basis of Design) March ii, 2oig 12

4 FACULTATIVE LAGOONS
!kmsi'iT•71[ne i1
The existing pond liner in both the lagoon and polishing ponds will be demolished as a part of this project.
Influent piping in the lagoon located on top of liner will be demolished along with pipe support pedestals.
4.2 New Work
Pond Liners and Sequence of Construction
Both lagoon liners will be replaced as a part of this project. A gravel underdrain system will be constructed
in the bottom of the lagoon and polishing pond for purpose of dewatering soils to provide for proper
installation of the liner system. A grid style geo-composite vent layer will be installed for gas venting to
prevent floatation of the geomembrane. Finally, the geomembrane liner will be installed.
During the construction process, one of the two ponds will remain in service at all times to perform
wastewater treatment and storage while work is being performed on the other pond. A modification
permit through NC DEQ will be obtained to allow for this temporary mode of operation. Based on
facultative lagoon criteria from Metcalf and Eddy, 6o days detention time is preferred for facultative
lagoon wastewater treatment. Assuming an average daily flow of 11,000 gpd, a detention time of 40 days
will be met by the polishing pond; however, with the addition of a new effluent valve on the discharge line
additional freeboard in the polishing pond will be used as needed to increase effective detention time to
approximately 55 days and provide for additional storage during inclement weather. At least 18 inches of
freeboard will be maintained at all times during this temporary mode of operation. Additionally, a
temporary internal baffle curtain will be installed to create a separate polishing zone in the effluent end of
the polishing pond.
The detention time in the lagoon alone will be nearly 8o days which exceeds the detention time design
criteria. If effluent quality in either the polishing pond or the lagoon begins to deteriorate, the reduction of
organic loading will be possible through the use of porta johns at strategic locations within the base.
Additionally, in the event low dissolved oxygen levels are detected, feed of hydrogen peroxide, calcium
nitrate or sodium nitrate will be implemented to increase available oxygen for organic assimilation. If
these measures do not prove completely effective, and the effluent quality is not able to meet permit
conditions, the contractor will initiate pump and haul of raw wastewater to the WAS WWTP.
The lagoon will be taken out of service first and the polishing pond will be used for treatment and storage.
The process of drawing the water level down in the lagoon will need to begin go days prior to planned
demolition of the lagoon. By discharging 1o,000 gpd more than the average influent flow (total discharge
Of 21,000 gpd), it will take roughly 7o days of spray application to draw the water surface level down to
within one foot of the bottom of the lagoon. Decant in this lagoon should continue as far as possible
without dramatically impacting quality of the discharge to the polishing pond. The Government may want
to consider the use of porta johns in strategic areas of high occupancy and other conservation measures
that will aid in reducing flows and organic loading to the WWTP during this period and throughout
construction. These measures will help reduce the likelihood and cost associated with implementation of
pump and haul.
Immediately upon mobilization of the contractor to begin work, bypass pumping will be installed to pump
influent flow from the existing raw wastewater forcemain to the polishing pond. Any remaining decant
will be removed and transferred to the polishing pond to the extent possible without impacting effluent
quality in the polishing pond. Any remaining decant will then be hauled to WAS WWTP for disposal.
Sludge deposits in the lagoon will then be removed, lime stabilized and land applied to permitted land
being used for disposal of sludge from the WAS WWTP. Installation of the underdrain system,
Dewberry- WO# REPAIR AND IMPROVE BOGUE FIELD WASTEWATER TREATMENT SYSTEM, MCASCP
Y (CP19Eo1M&R) J
Prefinal (go%) Submittal — Basis of Design) March ii, 2oig 13

geocomposite venting grid, and membrane as noted above will be performed. Upon completion of the
renovation to the lagoon, raw wastewater will be diverted back to the lagoon and work will be performed
in a similar manner on the polishing pond. The sequence of construction as included in the construction
documents for this work is as follows:
Sequence of Construction and Scope of Work Clarifications
Sequence of construction and scope of work clarifications
1. General; the sequence of work described in this section is provided to define general construction
sequencing that is intended to minimize the final project cost to the contracting officer while fairly
compensating the contractor for actual quantities related to the following activities;
• Pumping, transport and disposal of decant from the Bogue WWTP to MCASCP WWTP.
• Lime stabilize, haul and land apply liquid sludge onto permitted land application sites.
• Address unsuitable soil through insitu lime stabilization or remove/replace.
2. Contractor notification and work responsibilities; contractor shall notify the contracting officer at least
(2) weeks before work is to commence within the lagoon. If at this time the contractor officer determines
that additional time is needed for the contracting officer to complete the removal of decant from the
lagoon to the polishing pond, the contracting officer reserves the right to delay the start of work at the
lagoon for up to (6o) days beyond the date of issuance of the notice to proceed. In the event authorization
to proceed is delayed beyond this (6o) day period, the contractor shall be allowed one extra day of
contract completion time for every day the notice to commence occurs beyond this (6o) day period. For
the basis of bid, under no circumstances will work in the lagoon be delayed by the contracting officer more
than (9o) days beyond the issuance of the notice to proceed.
3. Start of work; upon receipt of notice to commence work within the lagoon, the contractor shall fully
mobilize and begin work in a sequence consistent with following notes/paragraphs.
4. Bypass line installation and decanting of lagoon (Begin Phase I); seven (7) days in advance to installing
the bypass line to the polishing pond, the contractor shall install the stilling curtain in the polishing pond
and coordinate with the contracting officer for a suitable time that the influent pump station can be
temporarily stopped so that the temporary 4" bypass line can be connected to the existing raw wastewater
forcemain. Once this is installed, the contracting officer shall be allowed two weeks to divert remaining
lagoon decant over to the polishing pond via the lagoon effluent box. Diversion of lagoon decant shall be
stopped if polishing pond effluent quality begins to deteriorate and permitted effluent standards cannot
be met. once removal of decant by the contracting officer is complete to the extent possible, the contractor
shall install plugs in the lagoon effluent box to insure complete isolation of the lagoon, and then pump
and haul any remaining decant to MCASCP for disposal into a designated manhole upstream of pump
station B4259. The contractor shall pump out sufficient decant such that the remaining deposited sludge
is concentrated to a total solids concentration of at least 3%.
5. Removal of liquid sludge from lagoon (Phase I); the contractor shall remove, lime stabilize, transport
and land apply deposited sludge in the lagoon onto permitted site(s) being utilized by the cherry point
MCASCP WWTP. Compensation for sludge disposal shall be based on a sludge with a minimum 3% total
solids prior to lime addition for stabilization. The contractor shall utilize the services of craven agriculture
in performing this work to insure all work is performed in conformance with the current land application
permit governing the application of sludge being produced at the MCASCP WWTP.
6. Treatment of unsuitable soils and final grading (Phase I); once the existing liner is removed and
disposed, the contractor shall install underdrains and pump out any recoverable water and transfer to the
polishing pond. Once the soils in the lagoon is allowed at least two weeks to gravity dewater, the soils in
the lagoon shall be tested via rubber tire roll testing. Soils that are found to be pumping shall be lime
stabilized by applying lime and incorporating by disking followed by recompaction. Alternatively, if more
Dewberry- WO# REPAIR AND IMPROVE BOGUE FIELD WASTEWATER TREATMENT SYSTEM, MCASCP
Y (CP19Eo1M&R) J
Prefinal (go%) Submittal — Basis of Design) March ii, 2oig 14

cost effective, contractor shall remove unsuitable soil, transport to designated locations at MCALF Bogue,
spread, seed and then provide suitable soil from offsite, place and compact in place. Unit price to include
both removal and place back of unsuitable material and shall be measured based on compacted in-place
material. The contractor shall employ the services of a licensed geotech to observe and approve lime
stabilization of unsuitable soils or the placement and compaction of offsite soils. Upon the geotech's
approval the contractor shall also obtain the services of a qualified representative of the geotechnical
membrane manufacture to confirm and approve in writing suitable conditions for proper membrane
installation.
7. Membrane installation (Phase I); contractor shall proceed with installation of the membrane liner
system in the lagoon.
8. Switchover (end Phase I ,start Phase II); once construction of the lagoon has been completed and
approved by the contracting officer, operation of the influent pump station shall be temporarily halted
and the forcemain re -connected to the lagoon influent line to restore flow to the lagoon. The temporary
forcemain shall be removed.
9. Clean out of polishing pond and liner disposal (Phase II); pump out any remaining contents of the
polishing pond (including any residual sludge) and transfer to the influent end of the lagoon. Remove and
dispose of the liner and all construction debris such as abandoned components of the bubbler system,
floats, cables, vent piping, anchors and any other items that will interfere with the installation of the new
liner system. Install 8" gate valve on polishing pond effluent line and install a temporary mechanical plug
in the drain line exiting the polishing pond effluent box.
io. Membrane installation (Phase II); once the polishing pond liner is removed and disposed, install
underdrains, drain soils, address unsuitable soils by lime stabilization or removal and replacement, test
roll soils, and proceed with installation of the liner system as noted above for the lagoon. If more than (45)
days is required from the time the raw flow is re -diverted to the lagoon until the polishing pond will be
ready to be placed back in service, the contractor shall provide portable pumping to transfer lagoon
effluent direct to the polishing pond effluent manhole for disinfection and spray application. This transfer
shall be coordinated with the contracting officer and flow regulated to maintain a constant transfer rate of
Up to 200 gpm. A typical total average daily transfer of 17,000 gpd is anticipated during this period.
ii. Place system back into operation (end Phase II); remove all temporary plugs, open 8" polishing pond
effluent valve and remove all temporary piping and equipment used for temporary pumping. Proceed
with final grading, seeding, site restoration etc, as indicated in the contract documents.
Miscellaneous
Water service will be provided to both the chlorination building and lift station building. An existing 2"
service line (per project "CP9826M REPAIR SEWAGE PONDS BOGUE FIELD" by URS Consultants,
dated 5/30/97) in the vicinity of the chlorination building will be tapped, and a 3/4" service will be run to
each building. A frostless hose bibb will be provided inside of eachbuilding.
5 IRRIGATION SPRAY FIELD
5.1 Demolition
The existing spray field header, isolation valve and buried throttling valves for each header will be
demolished as a part of this contract and replaced with a new header and valves.
A i5' wide area will be cleared and grubbed for the placement of irrigation lines to the new fields.
Additionally, all trees within the new irrigation area will be pruned ("limbed up") to a minimum height of
Dewberry- WO# REPAIR AND IMPROVE BOGUE FIELD WASTEWATER TREATMENT SYSTEM, MCASCP
Y (CP19Eo1M&R) J
Prefinal (go%) Submittal — Basis of Design) March ii, 2oig 15

1o' above the existing ground to allow the spray heads to properly distribute the wastewater being
sprayed.
5.2 New Work
As a part of this project, the irrigation spray field system will be expanded. Currently there are four acres
of irrigation spray field that are in service. The four acres consists of two, two acres spray fields. During
periods of inclement weather, the irrigation application rate is limited. The addition of another 3.5 acres
will allow for reduced surface application rates during these periods. The new spray field area will be
cleared and grubbed only along the route of proposed new piping and at each spray header. Low
projecting tree limbs within the area of spray influence will be trimmed to provide for more uniform
application of wastewater into forested areas.
Currently, there are two polishing pond effluent pumps that transfer flow to the irrigation fields for spray
application. These pumps are rated for 200 gpm. Currently, the two, two acre fields are operated as
independent zones each having 5 irrigation heads. The new 3.5 acre spray field will also be setup in two
zones, one with four and the other with five irrigation heads. This will closely resemble the current
sprayfield. A new distribution manifold with valves will be installed at the entrance of the existing
sprayfield. This manifold will be used to divert flow to any of the four final zones. Two new forcemains
will be installed to the new sprayfield for conveyance of wastewater from the new distribution manifold.
6 PERMITTING
6.1 Sedimentation and Erosion Control
The disturbed area for the project, including the lagoon lining work and clearing for the new spray
fields, will exceed 1 acre; therefore, a Sedimentation and Erosion Control Permit will be required.
The project will include the following measures for erosion and sediment control: temporary
construction entrance, temporary silt fence, seeding and mulching, and sod. All measures will be
designed per requirements set forth in the North Carolina Erosion and Sediment Control Planning
and Design Manual.
6.2 Additional Permits
A Coastal Area Management Agency (CAMA) Federal Consistency Determination is required.
A Stormwater Permit is required — project requires a Sedimentation and Erosion Control Permit
and is within one mile of a HQW water body. The built -upon area for the project will be within the
12% threshold for "Low Density" development.
A 401/404 Pre -Construction Notification is not required — no wetlands and/or jurisdictional water
bodies are being impacted.
Dewberry- WO# REPAIR AND IMPROVE BOGUE FIELD WASTEWATER TREATMENT SYSTEM, MCASCP
Y (CP19Eo1M&R) J
Prefinal (go%) Submittal — Basis of Design) March ii, 2oig 16

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ENGINEERING
Structural Consultants
748 Lard Dunmore Drive, Suite 101
Virginia Beach, VA23464
Phone [phone]
Fax [phone]
1.1 Dewberry'
Dewberry Engineers Inc.
2610 WYCLFF ROAD
SUITE 410
RALEIGH, NC 27607
PHONE'. 919.681.9939
FAX [phone] A E INFO
NCBELS #F-0929
APPROVED
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Dewberry'
Dewberry Engineers Inc.
BORING ID
WrV7f,f S@Wh w8diamsf3LrR ERratnn Cifr JacirsonMe
HAVE
5465 Gtaenwth Road 1592LE Ponn#raan Aioad 415-A Waslvm Blvd
2. THE CONTRACTOR IS RESPONSIBLE
VV0,jAa 9eeeh. VA 23642 NOwnsbwg, VA 23185 Efrrabeth C+Yy. 1JC 2T5�D9 JackscnvArs, NC 28546
BIS'"
757-578-7703 7ST•584G45� Z-33`19763 9f047$9gf5
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PROJECT NAME: Repair and Improve Bogue Field WM System PROJECT NUMBER: JX18-129
CLIENT: NRR "neering, P.C. SURFACE ELEVATION (MSL) (#t); 70.3
PROJECT LOCATION: MCA, Chary (zolr4 Bogue Pleld, NC LOGGED BY: dbh
BORING COORDINATES: EOT1 2590400.86 NC)RTH: 3h8183.6 DATE STARTED: 1011612018
DRILLING METHOD(S): Rotary wash 'mud" DATE COMPLETE❑: 1011612018
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PAGE 1OF1
IGET RECORD OF SUBSURFACE EXPLORATION
Dewberry'
Dewberry Engineers Inc.
BORING ID
Wrfto ecooI iVdJ,arr 6&" &LL1fw.fh a ry Jarssar W8
HAVE
5465 Greenwic- Road i592•E Piemvnun hbad 706 Caoa Trace Unit € 415-A Waslvm aw
2. THE CONTRACTOR IS RESPONSIBLE
Jachsv#10, NC 26546
H5 bath CRy. NC 27909 om
vVno seeck VA ?35x2 Wdi =shaug, YA 2�rEhz9
BR -2
757-57@-170 757-58d•A45P 25 335-9765 9fp•4T8-99f5
MAKE
EVERY EFFORT TO
SAVE PROPERTY IRONS, MONUMENTS, OTHER PERMANENT POINTS AND LINES OF REFERENCE AND CONSTRUCTION
PROJECT NAME= Repair and Improve Bogue Field WWW System PROJECT NUMBER: JX18-129
CLIENT: NRW Engineering, P.C. SURFACE ELEVATION (MSL) (ft): 10.98
PROJECT LOCATION: MCAS Cherry P& t Bogue Fleld, INC LOGGED BY: dbh
BORING COORDINATES: T: 2590861.05 NORTH: 348234 DATE STARTED: 1011612018
DRILLING METHOD(S): Rotary wash "mud" DATE COMPLETED: 10ilWaI8
GROUNDWATER': INITIAL (ft) -V: 8_5 AFTER _ HOURS (ft) _f: 7_5 CAVE-IN (ft) t': _ DRILLER: GET Solutions, Inc.
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PAGE 1 OF 1
Sample T s
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$S - $IAt $peon
PAGE 1 OF 1
GENERAL NOTES:
Dewberry'
Dewberry Engineers Inc.
BORING ID
1. CONTRACTOR SHALL
HAVE
A COMPLETE SET OF CONSTRUCTION DRAWINGS, SPECIFICATIONS, ADDENDA AND APPROVED PERMITS ON THE JOB SITE AT ALL TIMES.
2. THE CONTRACTOR IS RESPONSIBLE
FOR ALL
LAYOUT WORK REQUIRED TO PROPERLY CONSTRUCT THE WORK.
3. CONTRACTOR SHALL
MAKE
EVERY EFFORT TO
SAVE PROPERTY IRONS, MONUMENTS, OTHER PERMANENT POINTS AND LINES OF REFERENCE AND CONSTRUCTION
STAKES. PROPERTY
IRONS,
MONUMENTS, AND
OTHER PERMANENT POINTS OF REFERENCE DESTROYED BY THE CONTRACTOR SHALL BE REPLACED BY A NORTH
CAROLINA LICENSED
LAND
SURVEYOR AT THE
CONTRACTOR'S EXPENSE.
4. CONTRACTOR SHALL PROVIDE MEASURES AS NECESSARY DURING CONSTRUCTION FOR EROSION & SEDIMENTATION CONTROL, PER THE NCDEQ EROSION &
SEDIMENTATION CONTROL PLANNING AND DESIGN MANUAL.
5. CONTRACTOR SHALL PROTECT EXISTING CONCRETE STRUCTURES, UTILITIES AND ALL OTHER PROPERTY UNLESS THEY ARE TO BE DEMOLISHED. ANY PROPERTY
NOT AUTHORIZED FOR REMOVAL, BUT DAMAGED BY THE CONTRACTOR SHALL BE RESTORED OR REPLACED BY THE CONTRACTOR TO THE APPROVAL OF THE
CONTRACTING OFFICER AT NO ADDITIONAL COST TO THE GOVERNMENT.
6. UTILITY LOCATIONS:
THE UNDERGROUND UTILITIES SHOWN ARE BASED ON UTILITIES LOCATED FROM FIELD SURVEY INFORMATION AND FROM RECORD DRAWINGS PROVIDED BY THE
GOVERNMENT. RECORD DRAWINGS REFERENCED ARE FROM THE FOLLOWING PROJECT: 'PROJECT CP9826M REPAIR SEWAGE PONDS BOGUE FIELD' BY URS
CONSULTANTS, DATED 5/30/97.
ALL EXISTING UTILITIES MAY NOT BE SHOWN ON THE DRAWINGS AND LOCATION OF EX. UTILITIES (VERTICALLY AND HORIZONTALLY) ARE SHOWN IN APPROXIMATE
MANNER ONLY. THE CONTRACTOR SHALL BE RESPONSIBLE FOR LOCATING ALL EXISTING UNDERGROUND UTILITIES, PRIOR TO CONSTRUCTION. CONTRACTOR SHALL
CONTACT NC ONE CALL (811) PRIOR TO COMMENCEMENT OF CONSTRUCTION. LOCATION AND ELEVATION OF EXISTING UTILITIES ARE SHOWN IN APPROXIMATE
MANNER ONLY. VERIFY LOCATION AND ELEVATION OF EXISTING UTILITIES BEFORE CONSTRUCTION BEGINS AND COORDINATE CHANGES TO UTILITIES, IF NEEDED,
WITH THE CONTRACTING OFFICER.
7. CONTRACTOR SHALL BE RESPONSIBLE FOR RELOCATION OF EXISTING UTILITIES REQUIRED DURING INSTALLATION OF NEW WORK. NO ADDITIONAL PAYMENT WILL BE
MADE FOR THE RELOCATION OF EXISTING UTILITIES. CONTRACTOR SHALL BEAR ALL COST ASSOCIATED WITH UTILITY RELOCATION.
8. NOT ALL PIPE FITTINGS AND MISCELLANEOUS APPURTENANCES ARE SHOWN. CONTRACTOR SHALL PROVIDE ALL MISCELLANEOUS FITTINGS, TESTING EQUIPMENT AND
SUPPLIES NOT SPECIFICALLY SHOWN ON PLANS TO COMPLETE THE WORK.
RECORD OF SUBSURFACE EXPLORATION
Dewberry'
Dewberry Engineers Inc.
BORING ID
Vnwo aeadi PY Mmsbwo EL a� CVy JaexsmrVA8
FIRE PROTECTION
5465 Greenwich Road 7592-E Pemfiman Road 106 CAAW Tiacc Unit E 415-A West6m efvd
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Vugiraa eearh, VA 231342 M4 msbwg, VA 29165 Saabefh City, NC 27907 JacksmVXe. NC 26545
BR -3
757-518-17t13 7;7 -$SA -4452 252.335.97&3 9f0 -4T9^9915
PROJECT NAME: Repair and Improve Rogue Meld WVVT System PROJECT NUMBER: JX13-129
CLIENT: NRVLI Engineering, P.C- SURFACE ELEVATION (MSL) (ft):
PROJECT LOCATION: MCA$ Cherry Point Rogue Field, NC LOGGED BY: dbh
BORING COORDINATES: E+4ST: 2S9OW-69 NORTH: 315018-79 DATE STARTED: 11111612018
DRILLING METHOD(S): Notary wash "mud" DATE COMPLETED: 10116WIS
GROUNDWATER': INITIAL (ft) V: _L AFTER _ HOURS (ft) T:10.1 GAVE -IN (ft) Q: _ DRILLER: GET Solutions, Inc.
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EPROUECT NO.: -
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PAGE 1 OF 1
9. THE CONTRACTOR SHALL MAINTAIN SEPARATION BETWEEN SEWERS/WATER MAINS AS FOLLOWS:
HORIZONTAL AND VERTICAL SEPARATION
a. SEWERS SHALL BE LAID AT LEAST 10 FEET HORIZONTALLY FROM ANY EXISTING OR PROPOSED WATER MAIN. THE DISTANCE SHALL BE MEASURED EDGE
TO EDGE. IN CASES WHERE IT IS NOT PRACTICAL TO MAINTAIN A 10 FOOT SEPARATION, DWQ MAY ALLOW DEVIATION ON A CASE-BY-CASE BASIS, IF
SUPPORTED BY DATA FROM THE DESIGN ENGINEER. SUCH DEVIATION MAY ALLOW INSTALLATION OF THE SEWER CLOSER TO A WATER MAIN, PROVIDED
THAT THE WATER MAIN IS IN A SEPARATE TRENCH OR ON AN UNDISTURBED EARTH SHELF LOCATED ON ONE SIDE OF THE SEWER AND AT AN ELEVATION
SO THE BOTTOM OF THE WATER MAIN IS AT LEAST 18 INCHES ABOVE THE TOP OF THE SEWER.
b. IF IT IS IMPOSSIBLE TO OBTAIN PROPER HORIZONTAL AND VERTICAL SEPARATION AS DESCRIBED ABOVE OR ANYTIME THE SEWER IS OVER THE WATER
MAIN, BOTH THE WATER MAIN AND SEWER MUST BE CONSTRUCTED OF FERROUS PIPE COMPLYING WITH PUBLIC WATER SUPPLY DESIGN STANDARDS AND
BE PRESSURE TESTED TO 150 PSI TO ASSURE WATERTIGHTNESS BEFORE BACKFILLING.
c. A 24 INCH VERTICAL SEPARATION SHALL BE PROVIDED BETWEEN STORM SEWER AND SANITARY SEWER LINES OR FERROUS PIPE SPECIFIED.
CROSSINGS
a. SEWERS CROSSING WATER MAINS SHALL BE LAID TO PROVIDE A MINIMUM VERTICAL DISTANCE OF 18 INCHES BETWEEN THE OUTSIDE OF THE WATER MAIN
AND THE OUTSIDE OF THE SEWER. THE CROSSING SHALL BE ARRANGED SO THAT THE SEWER JOINTS WILL BE EQUIDISTANT AND AS FAR AS POSSIBLE
FROM THE WATER MAIN JOINTS.
b. WHEN IT IS IMPOSSIBLE TO OBTAIN PROPER HORIZONTAL AND VERTICAL SEPARATION AS STIPULATED ABOVE, ONE OF THE FOLLOWING METHODS MUST BE
SPECIFIED:
L THE SEWER SHALL BE DESIGNED AND CONSTRUCTED OF FERROUS PIPE AND SHALL BE PRESSURE TESTED AT 150 PSI TO ASSURE WATER TIGHTNESS
PRIOR TO BACKFILLING, OR
H. EITHER THE WATER MAIN OR THE SEWER LINE MAY BE ENCASED IN A WATERTIGHT CARRIER PIPE WHICH EXTENDS 10 FEET ON BOTH SIDES OF THE
CROSSING, MEASURED PERPENDICULAR TO THE WATER MAIN. THE CARRIER PIPE SHALL BE OF MATERIALS APPROVED BY THE REGULATORY AGENCY FOR
USE IN WATER MAIN CONSTRUCTION.
12. CONTRACTOR SHALL REMOVE AND LEGALLY DISPOSE OF ALL CONSTRUCTION WASTE AND EXCESS SOILS OFF OF GOVERNMENT PROPERTY.
13. BURNING AT THE SITE IS NOT PERMITTED AT ANY TIME.
14. CONTRACTOR SHALL REPAIR ANY DAMAGE DONE TO EXISTING FACILITIES LOCATED OUTSIDE THE LIMITS OF WORK DUE TO CONSTRUCTION ACTIVITIES.
15. CONTRACTOR SHALL REPAIR ALL IMPROVEMENTS TO EXISTING OR BETTER CONDITIONS IF DISTURBED DURING CONSTRUCTION.
16. CONTRACTOR SHALL OBTAIN ALL REQUIRED PERMITS AND APPROVALS PRIOR TO BEGINNING CONSTRUCTION.
17. CONTRACTOR SHALL MINIMIZE DUST BY USE OF WET METHODS OR OTHER APPROVED METHOD.
18. ALL DEBRIS HAULING TRUCKS SHALL FULLY COVER LOADS WHEN HAULING MATERIALS FROM THE SITE.
19. CONTRACTOR SHALL ESTABLISH LAYDOWN AREA IN COORDINATION WITH CONTRACTING OFFICER.
20. EXCAVATION AND CONSTRUCTION SHALL PROCEED IN ACCORDANCE WITH LATEST OSHA REGULATIONS.
UNCLASSIFIED//FOR OFFICIAL USE ONLY
BORING LOG NOTES:
a
1. SOIL BORINGS WERE COMPLETED
BY GET SOLUTIONS, INC. ON
10/16/2018.Uj
0
2. SEE SPECIFICATION SECTION
01 80 00 'REPORTS' FOR
COMPLETE SUBSURFACE
INVESTIGATION REPORT.
PERMIT SET
DO NOT USE FOR CONSTRUCTION
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ENGINEERING
Structural Consultants
748 Lord Dunmore Drive, Suite 101
Virginia Beach, VA23464
Phone [phone]
Fax [phone]
APPROVED
' FOR COMMANDER NAVFAC '
ACTIVITY
SFACTORY TO DATE
Dewberry'
Dewberry Engineers Inc.
NCH MANAGER
2610 WYCLIFF ROAD
FIRE PROTECTION
SUITE 410
Q
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RALEIGH, NC 27607
25
PHONE'. 919.881 .9939
FAX [phone] A E INFO
NrRFI S aF-n9P9 /
APPROVED
' FOR COMMANDER NAVFAC '
ACTIVITY
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MAXIMO WORK ORDER NO.
6680410
NAVFAC DRAWING NO.
XXXXXXXX
SHEET 02 OF 17
G002
DRAWFORM REVISION: 10 MARCH 2009
UNCLASSIFIED//FOR OFFICIAL USE ONLY
FBI
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V I I I I I I I I I THIS SHEET. l i x I I I I I I I I I 1 1 I I 1 I I FLOAT / Q I I I I I
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METAL ICATV ALKI I I I I 1 I I I I I 1 I I I I II
I
14
C
0.5' WIDE CONC. BAFFLE TOP 90° BEND: 9.50 I I 1 11 1 1 I 11 I 1 11 I l r
1 1 I I 6.91 TOP SLUD ENV=6.60 I TOP = 10.66 INV: 8.37 1 1 I 14,0 BOT/TOM I 0,-) J I
I I I I I 1 I 1 1 6,62 BOTTOM I I 1 I 1 1 1 1 1 1 I / / 3.94 1B❑'TT M 1 � o
V I I I I 1 I I 1 1 6,53 OT SLUDGE TOP 90° BEND: 8.56 1 I 1 I I I 1 I 1 ' i X� 3,83 BOTTOM
1 4 I I 1
I l l i I 1 1 I 6,76 TOP SLUDGE 6,51 BOTTOM 6,72 TOP SLUDGE INV: 7.43 I 1 1 I I 1 1 I 1 IO 1 1 1 �' O 1 I I I I
p 6 C v 6.84 TOP SLUDGE 6,74 BOTTOM I 6,72 BOTTOM I I I I 1 1 I I I O FLOAT X I 1 1 I I 10
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I I I I I 1 I 6d TLP SLUDGE X 6,80 T❑P SLUDGE 6.59 B❑TT❑M I 6.57 RnTTk4L
oN o rn- c9 (oCO�l 0) Cp SEE NOTE 2 1 I
I I I I I ,621 BdTT❑M 6,74 TOP SLUD 6.78 BOTTOM J N `-`'�RASSI 1 1\ I \ ' I I 1 1 1 I I
6.78 T❑P SLUDGE 1 i I 1\\ THIS SHEET. 1TOP WATER: 6.43' I 11 I
6.74 BOTTOM 6,80 BOTTOM 1 I I 1 I I 1
� 1 1 i l 1 1 I I I I^ I 1\ \\\ 1 x I I 1 1 1 1 I
TOP OF CONIC.FOOTING 1 I I I I 1 II \\\ I I I I
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1 1 \\\ I 1 I I I I 1 I 1 I I I I 1 I I 1 I I \ X �- -ELOAT X FL ATI 1
, 1 If❑PIS 1UDGE 6.56 TOP SLUDGE 6.52 TOP SLUDGE 6,64 TOP SLUDGE i I 1 1 1 I 1 I I I I I I 1 1 1\ \ \ k.47 -BOTTOM -5 — — — — 3_87 BOTTOM -
6 � � 1
6. 9 IB❑TT❑4 6,52 BOTTOM 6,50 BOTTOM 6,64 BOTTOM
I 6 34 BOTTOM UDGE - _ X I / /I I I I \ \ \ _ _ _ _ _ _ _ - - - - - - - - - 3,81 B� ❑M
I 1 X j _ 5,14 101 S U)DEE I I I \ 1X -5,67-TBP-Sf{�06E------X----X----X----- - II_ X X 6.D3_KTT�M/ 1 1 1 I I 1 \ \�-- - - - - -- 7------ RISER-TOP--8.1�0
I \ ) \ \ ---X--6,bLTOP_ SLUDGE ------ - / / / / - ---
\ \ \ \ 6.65 BOTTOM_ _ 6.58 TOP SLUDGE_ _ 6,60 TOP_SLUDGE_ _ _ �� T❑P7�LU� _ _�56 B❑TT❑M - - - _ _ _ -' / I I I \ _ L - +NV-
-- - -- 6,59 BOTTOM -.8- \ ----- ----- __
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6,59 - ]M 1 ----------- �/ i / / / / \ \\ �� INV OUT: 6.45 '
------------------ -
-------------- / / /\ \ \------- BOTTOM: 3-94 \
-� —
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\\\\\----------------------------------- --- ----12--_, -----------
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- - -/ \--__----
-OT p WATER: 0.3 0:25AM 10/23/18)
— APPROX. ION OF CREEK TOP WATER: 0.22' (4:19PM 10/23/18
BOT CREEK: 0.15'
10723/18)
TOP WATER
TOP WATER: 0.00' (PM 10/23
BOT CREEK: -0.30'
NOTES:
1. SEE SHEET CO20 FOR LOCATION OF SURVEY CONTROL.
2. CONCRETE SUPPORTS SHOWN ARE BASED ON RECORD
DRAWINGS PROVIDED BY THE GOVERNMENT. RECORD
DRAWINGS REFERENCED ARE FROM THE FOLLOWING
PROJECT: 'PROJECT CP9826M REPAIR SEWAGE PONDS
BOGUE FIELD' BY URS CONSULTANTS, DATED 5/30/97.
SS
SD
UGE
UGW
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LEGEND
SV®
SURVEY CONTROL
GUY WIRE
POWER POLE
POST
POWER POLE
SPRAYER HEAD
8"' DIP �8 P
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UNCLASSIFIED//FOR OFFICIAL USE ONLY
TOP=8.70
ACTIVITY
INV
IN(W): 6.27
INV
IN(E): 6.24
INV
OUT(S): 6.17
CHLORINE
\ S / _ -rte I BLDG 8047
\ I I FF=8.46'
SV I I
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TOP WET WELL: 9.84
INV IN(E). 3 94
BOTTOM WE1, WELL: -2.27
PUMP STATION
BLDG 8081
FF=9.84
0' 15' 30' 60'
SCALE: 1" = 30'
TOPOGRAPHIC SURVEY NOTES:
1. THIS TOPOGRAPHIC SURVEY IS BASED ON A SURVEY
PERFORMED BY DEWBERRY ENGINEERS INC. ON OCTOBER
22-25, 2018 .
SANITARY SEWER MANHOLE 2•
SIGN
CLEANOUT
TEST HOLE
WATER VALVE
SEWER VALVE
CHAINLINK FENCE
FENCE
OVERHEAD ELECTRIC
STORM DRAIN
UNDERGROUND ELECTRIC
UNDERGROUND WATER
TREELINE
CREEK
SANITARY SEWER
SANITARY SEWER F❑RCEMAIN
HORIZONTAL CONTROL (NAD83/201 1) AND VERTICAL CONTROL
(NAVD88) ESTABLISHED BY GPS OBSERVATIONS AND
COMPUTED USING NORTH CAROLINA GEODETIC SOCIETY
VIRTUAL REFERENCE STATION SERVICE (VRS).
3. NORTH ARROW IS GRID NORTH AND ALL DISTANCES ARE
GROUND DISTANCES. PROJECT LOCALIZED ON POINT #1
COMBINED GRID FACTOR (GRID TO GROUND) EQUALS
1.0000805613.
4. LOCATIONS OF UTILITIES SHOWN ON THIS SURVEY WERE
DETERMINED BY OBSERVED EVIDENCE, LOCATION OF ABOVE
GROUND UTILITY APPURTENANCES, AND UTILITY MARKINGS
(PAINT, ETC.) PROVIDED BY SOUTHEASTERN LOCATING
SERVICES, LLC . THESE MARKINGS WERE OBSERVED DURING
THE COURSE OF THIS SURVEY, WERE FIELD LOCATED, ARE
SHOWN FOR INFORMATIONAL PURPOSES, AND SHOULD BE
FIELD VERIFIED IF CRITICAL. UNDERGROUND UTILITIES NOT
SHOWN, MAY EXIST. STORM SEWER AND SANITARY SEWER
DATA HAS BEEN COLLECTED FROM THE RIM OF THE MANHOLE
WITHOUT ENTERING THE STRUCTURE. PIPE SIZES AND TYPES
SHOULD BE CONSIDERED APPROXIMATE AND BE FIELD
VERIFIED IF CRITICAL.
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1 SEAL
7 Mm ENGINEERING
Structural Consultants
748 Lord Dunmore Drive, Suite 101
Virginia Beach, VA 23464
Phone [phone]
Fax [phone]
Dewberry`
Dewberry Engineers Inc.
2810 WYCUFF ROAD
SUITE 410
RALEIGH, NC 27807
PHONE: [phone]
FAX [phone]
q E INFO
NCBELS #F-0929
APPROVED
FOR COMMANDER NAVFAC
ACTIVITY
SATISFACTORY TO DATE
DES DRW CHK
PM/DM
BRANCH MANAGER
CHIEF ENG/ARCH
FIRE PROTECTION
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NAVFAC DRAWING NO.
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5 DRAWFORM REVISION: 10 MARCH 2009
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PROVIDE RESTRAINED 4"x6" INCREASER TO
CONNECT TO 6" HDPE DR -21 TEMPORARY PHASE I - WET AND DRY SLUDGE MATERIAL IS
BYPASS LINE TO POLISHING POND.
PROJECT LIMITS PRESENT THROUGHOUT THE ENTIRE SEWAGE LAGOON.
DEWATER AND DISPOSE OF THIS MATERIAL AS
PHASE I - DESCRIBED IN THE SPECIFICATIONS. ESTIMATED SLUDGE
DEMOLISH QUANTITIES ARE PROVIDED IN SPECIFICATION 00 22 13.
DEMOLISH EXPOSED 4" FORCE MAIN AND EXPOSED 4" 00 20. NOT ALL HATCHING SHOWN FOR CLARITY (REF.
(10) 18"x18"x8" CONCRETE PADS ON SEQUENCE OF CONSTRUCTION SHT. CU901)
TOP OF EXISTING LINER (NOT ALL PADS _ _ FORCEMAIN _ _ _ _
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ADDITIONAL INFORMATION AND DETAILS I\ \ _ — — --QJ±E FM _ \ I 0
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4 � 5
PROVIDE 6" TEMPORARY
BYPASS LINE AT GRADE
TURNDOWN ELBOW
INSTALL TEE HORIZ.
BELOW WATER SURFACE
PHASE II - WET AND DRY SLUDGE MATERIAL IS
PRESENT THROUGHOUT THE ENTIRE POLISHING BASIN.
DEWATER AND DISPOSE OF THIS MATERIAL AS
DESCRIBED IN THE SPECIFICATIONS. ESTIMATED SLUDGE
QUANTITIES ARE SHOWN IN SPECIFICATION 00 22 13.
00 20. NOT ALL HATCHING SHOWN FOR CLARITY.
(REF. SEQUENCE OF CONSTRUCTION SHT. CU901)
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OPERATIONAL LEVEL, AND FLOW
CONTROL TO CL2 CONTACT TANK
DURING CONSTRUCTION
TOP=8.70
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INV
IN(W): 6.27
INV
IN(E): 6.24
INV
OUT(S): 6.17
CHLORINE
INV OUT: 6.45\ BLDG 8047 --- —
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APPROX. 150'
r -/1r\ 11/1L IF ILLLv J/-\INU
BAGS (AS REQ'D)
1 POLYETHYLENE STILLING CURTAIN DETAIL
SCALE: NOT TO SCALE
D010ICD010/
;6" TIMBER
ORING POST
BEDDED 3 FEET
'P. OF 2)
AN = 10'f
LEGEND:
APPROXIMATE
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MANUFACTURER
-
REFERENCE
APPROX.
LIMITS OF EXIST. LINER
PHASE II
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APPROX. LIMITS OF EXIST. LINER-/
BALL VALVE
B.V.
PHASE II -
BYPASS PUMP DEMOLISH EXPOSED
PHASE I - MOORING ANCHOR TYP.J
O.C.
1
PHASE II
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CLARIFICATION NOTES.
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APPROX. 150'
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BAGS (AS REQ'D)
1 POLYETHYLENE STILLING CURTAIN DETAIL
SCALE: NOT TO SCALE
D010ICD010/
;6" TIMBER
ORING POST
BEDDED 3 FEET
'P. OF 2)
AN = 10'f
LEGEND:
APPROXIMATE
APPROX.
MANUFACTURER
MFR.
REFERENCE
REF.
WITH
W/
NORMALLY CLOSED
N.C.
BALL VALVE
B.V.
GATE VALVE
G.V.
ON CENTER
O.C.
STAINLESS STEEL S.S. / STN.
STL.
ELBOW/BEND
EXISTING
EXIST.
MINIMUM
THICKNESS/THICK
TYPICAL
CENTERLINE
HORSEPOWER
NOT IN CONTRACT
DEMOLITION LEGEND:
DEMOLISH
PROJECT LIMITS
GEOMEMBRANE LINER
STILLING CURTAIN
BYPASS FORCEMAIN
SLUICE
GATES
TOP WATER: 0.3 0:25AM 10/23/18)
TOP WATER: 0.22' (4:19PM 10/23/18)
BOT CREEK: 0.15'
PHASE 1 -150'
POLYETHYLENE STILLING
CURTAIN (10 MIL THK.)
EL
EX. /
TH K.
TYP.
H.P.
N.I.C.
FM —
INV IN(E): 319'4
BOTTOM WE WELL: -2.27
PUMP STATION
BLDG 8081
FF=9.84 I
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SEAL
MMI ENGINEERING
Structural Consultants
748 Lord Dunmore Drive, Suite 101
Virginia Beach, VA23464
Phone [phone]
Fax [phone]
Dewberry'
Dewberry Engineers Inc.
2610 WYCUFF ROAD
SUITE 410
RALEIGH, NC 27607
PHONE: [phone]
FAX [phone]
A E INFO
NCBELS #F-0929
APPROVED
' FOR COMMANDER NAVFAC '
ACTIVITY
NOTES:
SATISFACTORY TO DATE
�II
DES DRW CHK
PM/DM
BRANCH MANAGER
1. SEE SHEET C010 FOR TOPOGRAPHIC SURVEY NOTES AND LEGEND._
CHIEF ENG/ARCH
FIRE PROTECTION
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SCALE: AS NOTED
EPROJECT NO.: —
SCALE: 1" = 30'
MAXIMO WORK ORDER NO.
6680410
NAVFAC DRAWING NO.
PERMIT SET
XXXXXXXX
SHEET 6 OFF 17
DO NOT USE FOR CONSTRUCTION
C D O 1 O
5 DRAWFORM REVISION: 10 MARCH 2009
UNCLASSIFIED//FOR OFFICIAL USE ONLY
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DEMOLITION NOTES:
1. TREES AND VEGETATION TO BE LEFT STANDING SHALL BE PROTECTED FROM
DAMAGE INCIDENTAL TO REMOVAL AND TRIMMING, AND CONSTRUCTION
OPERATIONS BY THE ERECTION OF BARRIERS OR BY SUCH OTHER MEANS AS
THE CIRCUMSTANCES REQUIRE.
2. REMOVAL OF TREES AND VEGETATION SHALL BE BY MECHANICAL MEANS. NO
HERBICIDES OR CHEMICALS SHALL BE USED IN CLEARING OPERATIONS.
3. WITHIN THE LIMITS OF CLEARING AND GRUBBING, CONTRACTOR SHALL COMPLETE
THE FELLING, TRIMMING, AND CUTTING OF TREES INTO SECTIONS AND THE
SATISFACTORY DISPOSAL OF THE TREES AND OTHER VEGETATION DESIGNATED FOR
REMOVAL, INCLUDING DOWNED TIMBER, SNAGS, BRUSH, AND RUBBISH OCCURRING
WITHIN THE AREAS TO BE CLEARED. CONTRACTOR SHALL REMOVE AND DISPOSE
OF STUMPS AND ROOTS FROM THE DESIGNATED REMOVAL AREAS. FOR LARGE
STUMPS WITH DEEP ROOT MASS, TERMINATION OF ROOT REMOVAL SHALL END AT
3'-0" BELOW GRADE.
4. WITHIN THE LIMITS OF PRUNING, CONTRACTOR SHALL REMOVE LIMBS FROM
EXISTING TREES ("LIMBING UP") TO A MINIMUM HEIGHT OF 10' ABOVE THE
EXISTING GROUND ELEVATION AS WELL AS CUT AND REMOVE ALL BRUSH AND
SMALL TREES LESS THAN 2" IN DIAMETER.
5. IN AREAS WHERE CLEARING/GRUBBING AND PRUNING ARE SHOWN TO OVERLAP,
CONTRACTOR SHALL CLEAR AND GRUB.
6. LOGS, STUMPS, ROOTS, BRUSH, ROTTEN WOOD, AND OTHER REFUSE FROM THE
TRIMMING AND REMOVAL OPERATIONS SHALL BE DISPOSED OF OUTSIDE THE
LIMITS OF GOVERNMENT -CONTROLLED LAND AT AN APPROVED DISPOSAL
LOCATION. CONTRACTOR SHALL RETURN ELEVATION OF DISTURBED AREA TO THAT
OF THE EXISTING GROUND SURFACE. CONTRACTOR SHALL SOD PROVIDE
TEMPORARY AND PERMANENT GROUNDCOVER TO ALL GRUBBED AREAS IN
ACCORDANCE WITH SHEET CG900.
7. GOVERNMENT REPORTS ABANDONED BUILDING FOUNDATIONS WITHIN WOODED
AREA. ANY EXISTING FOUNDATIONS, IMPERVIOUS SURFACES OR CONSTRUCTION
DEBRIS DISCOVERED WITHIN EACH OF THE 70' SPRAY FIELD RADII IS NOT
PERMITTED AND SHALL BE DEMOLISHED AND DISPOSED OF OFF BASE.
PROVIDE ACCESS TO EACH SLAB WITHIN SPRAY FIELD DIAMETER, DEMOLISH,
REMOVE, DISPOSE, SOD DISTURBED AREA, AND DOCUMENT SLAB.
PROVIDE ACCESS TO EACH SLAB AS REQUIRED BY CLEAR AND GRUB OF 12
FOOT WIDE ACCESS PATH FOR DEMOLITION, REMOVAL AND DISPOSAL OFF BASE.
SOD DISTURBED GROUND. DOCUMENT EACH FOUNDATION REMOVED BY PROVIDING
PHOTOGRAPHS, CRITICAL DIMENSIONS, WEIGHT TICKETS, AND ON RECORD
DRAWINGS TO CONTRACTING OFFICER.
BASE BID AND PROVIDE UNIT PRICE ($/TON) FOR ACCESS/DEMOLITION/
REMOVAL/DISPOSAL/SOD/DOCUMENTATION FOR 9 FOUNDATIONS WITHIN SPRAY
FIELDS, EACH 6 -INCH THICK SLAB X 10 FEET LONG X 20 FEET WIDE.
Ile \`�L 1\ // AREA
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LIMITS OF TREE GRASS-/
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SH \ GPS#1 \
N: 348542.55\ \
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AND WOOD \ \
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FOR \ PROJECT \i /
/ REUSE.
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I \\ \ / ♦ ,— — — \ \\ TO LI M ITS
GPS#2
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\ / / /
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Structural Consultants
748 Lord Dunmore Drive, Suite 101
Virginia Beach, VA23464
Phone [phone]
Fax [phone]
11 Dewberry'
Dewberry Engineers Inc.
2610 WYCUFF ROAD
SUITE 410
RALEIGH, NC 27607
PHONE: [phone]
FAX [phone] q E INFO
NCBELS #F-0929
APPROVED
I FOR COMMANDER NAVFAC '
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UNCLASSIFIED//FOR OFFICIAL USE ONLY
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MAXIMO WORK ORDER NO.
SCALE: 1 " = 30'
6680410
NAVFAC DRAWING NO.
PERMIT SET
XXXXF
SHEET D7 OF 17
DO NOT USE FOR CONSTRUCTION
C D 02 0
5 DRAWFORM REVISION: 10 MARCH 2009
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CONTRACTOR DEWATERING PROJECT LIMITS CONTRACTOR DEWATERING
PUMP POINT OF CONNECTION JOHE
EOMEMBRANE LINER PUMP POINT OF CONNECTION GEOMEMBRANE LINER
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UNCLASSIFIED//FOR OFFICIAL USE ONLY
3/4" GATE VALVE AND BOX
TIE-IN TO EXISTING
WATERLINE W/ 3/4"
POLYETHYLENE WATERLINE
APPROX. LOCATION
3/4" GATE VALVE AND BOX
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--- - - - --------__ �.
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EXTERIOR COPPER PIPE WITH 2"
FOAMGLASS INSULATION AND
ALUMINUM JACKET.
_ TOP WATER: 0.3 0.25AM 10/23/18)
- APPROX. ION OF CREEK TOP WATER: 0.22' (4:19PM 10/23/18)
- BOT CREEK: 0.15'
TOP 0. .947
0' ( PMM 10723/1
10/2
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WATER SURFACE POLISHING
POND ELEV.=6.43'
POLISHING POND 30't POLISHING POND 35'f POLISHING POND 30'f
SEWAGE LAGOON 40'f SEWAGE LAGOON 40'f SEWAGE LAGOON 40'f
SPECIFICATION 33 47 13
51f 2' DIA. x 2' DEEP
POLISHING POND 10' METER BOX AND LID
SEWAGE LAGOON 12' TOP FLUSH W/ GRADE
--------- ` i i HAND TIGHTENED
---------- - 2" 45' EL W-04"
TOP OF FRENCH DRAIN 4" PERFORATED FRENCH DRAIN TO TIE-IN 8 OZ. NON -WOVEN GEOTEXTILEAROUND STONE (TYP.)
(MAINTAIN MIN. 0.5% TO 2" SCH 80 PVC OR
SLOPE TO 2" SUCTION DR 13.5 HDPE SUCTION LIFT PIPING TYP.) LIFT PIPING. CONNECT FRENCH DRAIN
DIRECT TO PERFORATED "PERFORATED" PIPE (TYP.)
DRAIN PIPE WITH FITTED
TEE AND REDUCER
1 TYP. FRENCH DRAIN DETAIL
CU010 CU010 SCALE: NOT TO SCALE
1 2 3
LEGEND:
MANUFACTURER MFR.
REFERENCE
REF.
WITH
W/
NORMALLY CLOSED
THREADED CAP
BALL VALVE
B.V.
GATE VALVE
G.V.
ON CENTER
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INSTALLATION OF SUITABLE MATERIAL - AS
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NO. 57 CLEAN STONE
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TOP OF FRENCH DRAIN 4" PERFORATED FRENCH DRAIN TO TIE-IN 8 OZ. NON -WOVEN GEOTEXTILEAROUND STONE (TYP.)
(MAINTAIN MIN. 0.5% TO 2" SCH 80 PVC OR
SLOPE TO 2" SUCTION DR 13.5 HDPE SUCTION LIFT PIPING TYP.) LIFT PIPING. CONNECT FRENCH DRAIN
DIRECT TO PERFORATED "PERFORATED" PIPE (TYP.)
DRAIN PIPE WITH FITTED
TEE AND REDUCER
1 TYP. FRENCH DRAIN DETAIL
CU010 CU010 SCALE: NOT TO SCALE
1 2 3
LEGEND:
MANUFACTURER MFR.
REFERENCE
REF.
WITH
W/
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N.C.
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B.V.
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G.V.
ON CENTER
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APPROXIMATE
NOT IN CONTRACT
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PROJECT LIMITS
GEOMEMBRANE
LI M ITS
FRENCH DRAIN
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TOP WET WELL: 9.84
- INV IN(E): 3 94
BOTTOM WEI WELL: -2.27
PUMP STATION
BLDG 8081
FF=9.84
i
LAYOUT NOTES:
1. SEE SHEET C010 FOR TOPOGRAPHIC SURVEY NOTES AND LEGEND.
2. SEE SHEET G002 FOR GENERAL NOTES.
3. SEE SHEET CGO10 FOR GRADING, EROSION & SEDIMENTATION CONTROL.
4. CONTRACTOR SHALL FIELD VERIFY VERTICAL AND HORIZONTAL LOCATION OF EXISTING
UTILITIES PRIOR TO INSTALLATION OF ANY UNDERGROUND STRUCTURES OR UTILITIES.
5. IN AREAS OF UNSUITABLE MATERIAL FOLLOWING INSTALLATION OF FRENCH DRAIN AND
FOLLOWING A (2) WEEK DRYING PERIOD, CONTRACTOR SHALL LIME STABILIZE OR
REMOVE 6" OF UNSUITABLE MATERIAL AND REPLACE WITH SUITABLE OFF-SITE
MATERIAL IN LOCATIONS WHERE SUITABLE SOILS ARE NOT PRESENT.
6. GEO-TECHNICAL SUBSURFACE BORING INDICATES WATER SURFACE - BR -1: 6.8',
BR -2: 7.5', AND BR -3: 10.1'.
7. CONTRACTOR SHALL PROVIDE PUMP -OUT OF FRENCH DRAIN SYSTEM WHILE
ESTABLISHING SUITABLE CONDITIONS, INSTALLATION OF LINER AND UNTIL THE BASINS
ARE REFILLED TO A MINIMUM AVERAGE DEPTH OF ONE (1) FOOT. FREQUENCY OF
PUMP OUT SHALL BE AS REQUIRED TO MAINTAIN WATER ENTERING THE FRENCH DRAIN
TO A LEVEL AT OR BELOW 6" INCHES OF THE TOP OF THE FRENCH DRAIN.
0' 15' 30' 60'
SCALE: 1 " = 30'
PERMIT SET
DO NOT USE FOR CONSTRUCTION
190
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748 Lord Dunmore Drive, Suite 101
Virginia Beach, VA23464
Phone [phone]
Fax [phone]
q1 Dewberry'
Dewberry Engineers Inc.
2610 WYCUFF ROAD
SUITE 410
RALEIGH, NC 27607
PHONE: [phone]
FAX [phone]
A E INFO
NCBELS #F-0929
APPROVED
' FOR COMMANDER NAVFAC '
ACTIVITY
SATISFACTORY TO
DATE
DES
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TOP OF BANK VARIES. CONTRACTOR SHALL EXTEND
GEOMEMBRANE LINER TO THE FULL ELEVATION OF
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ELEVATION OF THE TOP OF LINER AT 16.2 FEET
15' WIDE CONTINUOUS LENGTH STRIPS OF
GEOCOMPOSITE VENT LAYER ON 50'X33' CENTERS
INSTALLED BENEATH GEOMEMBRANE. THE
CONTINUOUS LENGTH STRIPS SHALL SPAN THE
ENTIRE WIDTH OF THE POLISHING POND.
TOP OF BANK VARIES. CONTRACTOR SHALL
REINSTALL SAFETY ROPE EXTEND GEOMEMBRANE LINER TO THE FULL
AFTER INSTALLATION OF GEOMEMBRANE LINER OVER ELEVATION OF THE EXISTING BANK AND
GEOMEMBRANE LINER TYP. CU011 CU900 CU011 CU900 TYP. PROJECT LIMITS MAINTAIN A MINIMUM ELEVATION OF THE TOP
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AFTER INSTALLATION OF
GEOMEMBRANE LINER TYP.
TOP=8.70
REF.
INV
IN(W): 6.27
INV
IN(E): 6.24
INV
OUT(S): 6.17
CHLORINE
BLDG 8047
I FF=8.46'
\ sv I
\ S t I
J
INSTALLED BENEATH GEOMEMBRANE. THE
CONTINUOUS LENGTH STRIPS SHALL SPAN THE CU011 CU900 CU011 CU900 CU011 CU900 _ — — TER: 0.37' 00:25AM 10/23/18)
ENTIRE WIDTH OF THE SEWAGE LAGOON. — APPROX. ION OF CREEK TOP WATER: 0.22' (4:19PM 10/23/18)
BOT CREEK: 0.15'
TOP :0.94' ( AM 10/23
TOP WATER: 0.00' (4:23PM 10/23/18)
BOT CREEK: —0.30'
LEGEND:
MANUFACTURER MFR.
REFERENCE
REF.
WITH
W/
NORMALLY CLOSED
N.C.
BALL VALVE
B.V.
GATE VALVE
G.V.
ON CENTER
O.C.
STAINLESS STEEL
ELBOW/BEND
TYPICAL
CENTERLINE
HORSEPOWER
APPROXIMATE
NOT IN CONTRACT
S.S. / STN. STL.
EL
TYP.
Ili-
H.P.
APPROX.
N.I.C.
SITE LAYOUT LEGEND:
PROJECT LIMITS
GEOMEMBRANE
LIMITS
GEOCOMPOSITE
DRAINAGE LAYERS
11
TOP WET WELL: 9.84
INV IN(E): 3 94
BOTTOM WEI WELL: —2.27
PUMP STATION
BLDG 8081
FF=9.84 I
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SEAL
= ENGINEERING
Structural Consultants
748 Lord Dunmore Drive, Suite 101
Virginia Beach, VA23464
Phone [phone]
Fax [phone]
Dewberry'
Dewberry Engineers Inc.
2610 WYCUFF ROAD
SUITE 410
RALEIGH, NC 27607
PHONE: [phone]
FAX [phone]
A E INFO
NCBELS #F-0929
APPROVED
' FOR COMMANDER NAVFAC '
ACTIVITY
UNCLASSIFIED//FOR OFFICIAL USE ONLY
701
C
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2
SATISFACTORY TO DATE
DES DRW CHK
PM/DM
BRANCH MANAGER
CHIEF ENG/ARCH
FIRE PROTECTION
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LAYOUT NOTES:
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1. SEE SHEET C010 FOR TOPOGRAPHIC SURVEY NOTES AND LEGEND.
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2. SEE SHEET G002 FOR GENERAL NOTES.
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3. SEE SHEET CGO10 FOR GRADING, EROSION & SEDIMENTATION CONTROL.
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4. A FLAP VENT SHALL BE INSTALLED PER DETAIL 4 ON SHEET CU900 ABOVE THE
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OF EACH STRIP OF GEOCOMPOSITE VENT LAYER, 6" DOWNSLOPE FROM
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5. A TOTAL OF 36 FLAP VENTS SHALL BE INSTALLED.
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6. GEOMEMBRANE LINER SHALL BE TERMINATED ONTO PIPING, STRUCTURES, PEDESTALS,
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AND KEYED INTO TRENCHES PER DETAILS REF. SHEETS CU900 AND CU901.
CD
7. AFTER GEOMEMBRANE LINERS HAVE BEEN INSTALLED AND APPROVED CONTRACTOR
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SHALL TURN ON INFLUENT PUMPS (REF. LOCATION MAP, SHEET G001 AND SEQUENCE
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OF CONSTRUCTION, SHEET CU901)
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8. FORCE MAIN SHOWN AS 4" FORCE MAIN ON AS BUILT DRAWINGS. CONTRACTOR SHALL
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FIELD VERIFY PRIOR TO ORDERING MATERIALS. FOR BIDDING PURPOSES, CONTRACTOR
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SHALL ASSUME 4" FORCE MAIN.
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0' 15' 30' 60'
SCALE: AS NOTED
EPROJECT NO.: —
SCALE: 1 " = 30'
MAXIMO WORK ORDER NO.
6680410
NAVFAC DRAWING NO.
PERMIT SET
XXXXF
SHEET 9 OF 17
DO NOT USE FOR CONSTRUCTION
C U 011
5 DRAWFORM REVISION: 10 MARCH 2009
UNCLASSIFIED//FOR OFFICIAL USE ONLY
701
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UNCLASSIFIED//FOR OFFICIAL USE ONLY

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EOMEMBRANE LINER SILICONE SEALANT
(AS COMPATABLE)
HOT AIR WELD STAINLESS STEEL CLAMP
(TYP. OF 2)
=II PREFORMED FLASHING REINFORCED
III—III
PIPE PREPARED SUBGRADE
4'x4'x6" CONCRETE COLLAR (SEE NOTES)
2
REF.
900 6900)
NOTES:
1. REMOVE EXISTING LINER AND EXCAVATE
AS NECESSARY FOR PLACEMENT OF
CONCRETE COLLAR.
2. INSTALL NEW LINER AND PIPE BOOT OVER
CONCRETE COLLAR AS SHOWN.
3. INSTALL GEOCOMPOSITE VENT OVER
COLLAR, IF APPLICABLE, PER
GEOCOMPOSITE VENT LAYER LAYOUT ON
SHEET C-04. GEOCOMPOSITE VENT LAYER
NOT SHOWN FOR CLARITY.
TYPICAL ELEVATION VIEW TYPICAL PIPE
PENETRATION SEAL DETAIL GEOMEMBRANE LINER
SCALE: N.T.S.
BACKFILL MATERIAL REFERENCE
SPECIFICATION 33 47 13
24'
LIMIT OF EXPOSED GEOMEMBRANE LINER
ANCHOR TRENCH
12" MIN.
4
4" DIA. HOLE FOR VENTREF.
FLAP VENT PANEL �cUqoo
CU900
GEOMEMBRANE LINER
GEOCOMPOSITE VENT LAYER
AREAS OF OVERLAPPING
GEOCOMPOSITE VENT LAYER SHALL
RECEIVE TIE—TAG FASTENERS PER
PREPARED SUBGRADE \/\ MANUFACTURER
TYPICAL ELEVATION VIEW TYPICAL
3 ANCHOR DETAILS GEOMEMBRANE LINER
U900 CU011 SCALE: N.T.S.
rn1r c rni
NEOPR
GEOMEMBRANE
SILICONE SE
SILICONE SEAL SHALL BE
PLACED BEHIND LINER
B AT BATTEN STRIP
CONCRETE OR OTHER ° Q
FIXED WALL ° ' '.a
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° e Q
°
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BATTEN STRIP — 3/8" X 2"
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_
1=1 —II—I I ° ° ° Q a
II I d
A1/2" BOLT AND SOCKET
111 a ° ON 1 '-0" CENTERS
4.
IIId d
/ Q.
NEOPRENE GASKET 4aQ
MATERIAL
..Q °°
d d
°
GEOMEMBRANE LINER
dna a** ° ° NOTES:
° ° 1. REMOVE EXISTING LINER AND FASTENERS FROM
=1 A. Q: a Qa EXISTING STRUCTURES.
MII Q
2. REPAIR DEFECTS IN EX. CONCRETE THAT WILL BE
COVERED BY BATTEN STRIPS AS NEEDED TO CREATE A
SMOOTH SURFACE FOR NEW GEOMEMBRANE LINER
SEAL AND AS DIRECTED BY THE CONTRACTING OFFICER.
TYPICAL ANCHORING DETAIL
5 GEOMEMBRANE LINER TO FIXED WALL
CU900 CU011 SCALE: N.T.S.
3/8" X 2"
S.S. BATTEN STRIP
1/2" BOLT AND SOCKET
ON 1'-0" CENTERS
�i
cTAINLESS STEEL
)ING
MBRANE
4" DIA. HOLE IN
GEOMEMBRANE LINER
UNDERNEATH FLAP VENT
SECTION A—A
4" DIA.
%REA INDICATES
WELD (3 SIDES)
TYPICAL PLAN VIEW FLAP VENT
4 DETAIL GEOMEMBRANE LINER
0 CU011 SCALE: N.T.S.
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to
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AMED
ET
3/4" STAINLESS
STEEL BANDING
EOMEMBRANE
NER
5 UNCLASSIFIED//FOR OFFICIAL USE ONLY
TYPICAL LINER PIPE PENETRATION SEAL TYPICAL DETAIL
SCALE: N.T.S.
WELD RUB SHEET TO LINER, ALL SIDES
TOP OF BERM
DOWN SIDE OF FLAP
OPEN TO HOLE
1 2
EX. POLISHING
BASIN INFLUEN
PIPE CONDITIO
EX. SEWAUL 1
LAGOON INFLUENT
PIPE CONDITIONS
REF.
SEWAGE LAGOON
REF. INFLUENT FORCE
MAIN ELEV. 9.4'
REPLACE EX. EFFLUENT
WITH NEW BOX TYP.
D WATER
SURFACE
9.56'
(50') 5
� REF.
gN.N.
PROVIDE MECHANICAL COUPLING AND
CONNECT NEW FORCE MAIN TO EX.
900CU900 FORCE MAIN
6
U900CU01
GEOMEMBRANE LINER PIECE TO
EXTEND 6" BEYOND EACH SIDE OF
CONCRETE PAD
GEOMEMBRANE LINER
PREPARED SUBGRADE
S.S. 3/8" ANGLE AND 3/8"
PLATE WELDED, ATTACHED TO
FLANGE W/ (4) 3/4" BOLTS
4" 90°
BASE
BEND
2" CLR Z� 1 2" CLR
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ENGINEERING
Structural Consultants
748Lord Dunmore Drive, Suite 101
Virginia Beach, VA23464
Phone [phone]
Fax [phone]
•
Dewberry'
Dewberry Engineers Inc.
2610 WYCLIFF ROAD
SUITE 410
RALEIGH, NC 27607
PHONE'. 919.881 .9939
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FAX 919 3 A
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ANCHOR "GRECS «F-°929 i
APPROVED
BOLTS EMBEDDED 4"
GEOMEMBRANE LINER
3'x3'x6" CONC. PAD AT PIECE TO EXTEND 6" FOR COMMANDER NAVFAC
EACH PIPE FLG. (TYP. OF BEYOND EACH SIDE ACTIVITY
3) — (6) #4 BARS AT OF CONCRETE PAD
8" O.C. EACH WAY 4'x4'x6" CONC. PAD AT 90°
BASE BEND — (6) #4 BARS SATISFACTORY TO DATE
DUCTILE—IRON PIPE AND FITTINGS AT 10"O.EACH WAY DES DRw CHK
A. FLANGED—JOINT, DUCTILE—IRON PIPE: AWWA C151, CLASS 52 WITH FLANGED—JOINT BELL AND PLAIN PM/DM
SPIGOT END UNLESS LINED FLANGED ENDS ARE INDICATED. PIPED SHALL BE CEMENT LINED. BRANCH MANAGER
1. FLANGED—JOINT, DUCTILE—IRON FITTINGS: AWWA C110, DUCTILE OR GRAY—IRON STANDARD CHIEF ENG/ARCH
PATTERN OR AWWA C153, DUCTILE—IRON COMPACT PATTERN. FIRE PROTECTION
2. GLANDS, GASKETS, AND BOLTS: AWWA C111, DUCTILE—OR GRAY—IRON GLANDS, RUBBER GASKETS, a
AND STEEL BOLTS. ' Z
TYPICAL CONCRETE PAD �� -�
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8 — PIPE SUPPORT DETAIL _
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SCALE: N.T.S. o ~ O
("l, 2 c�qooC�)oo Q z w
REF. z w
CU900 CU900 t o c~i3
3 � � ¢U
REF. � O
CU900 CU011 = w U
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w Q
' 20' SEWAGE LAGOON
14' POLISHING BASIN
EX. PIPE
SUPPORT PIER
�j
— NEW GEOMEMBRANE LINER
SEWAGE LAGOON
POLISHING BASIN
EFFLUENT BOX
NEW GEOCOMPOSITE VENT LAYER
zCn
TOP ELEVATION
11.89'
8.80'
BERM ELEVATION
12.20'
9' — 11'
DISTANCE
20.00'
20.00'
BETWEEN FACE
\/
LINER
OF EFFLUENT
BOX AND
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OUTSIDE OF
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ANCHOR TRENCH
LIME STABILIZED TYP.
SCALE: AS NOTED
— NEW GEOMEMBRANE LINER
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NEW GEOCOMPOSITE VENT LAYER
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SCALE: AS NOTED
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— NEW GEOMEMBRANE LINER
LAGOON
SECTION
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NEW GEOCOMPOSITE VENT LAYER
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— EX. 6" SOIL MATERIAL
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LINER
EX. SUBGRADE
LIME STABILIZED TYP.
SCALE: AS NOTED
EPROJECT NO.: —
TYPICAL SEWAGE
POLISHING BASIN
LAGOON
SECTION
AND AB 6 SUITABLE MATERIAL
ABOVE LINER TYP. (NOT
CONDITIONS LIME STABILIZED)
MAXIMO WORK ORDER NO.
6680410
NAV FAC DRAWING N0.
XXXXXXXX
SCALE: N.T.S.
E!
PERMIT SET SHEET „ OF 17
DO NOT USE FOR CONSTRUCTION C U 900
5 DR,4WFORM REVISION: 10 MARCH 2009
UNCLASSIFIED//FOR OFFICIAL USE ONLY
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NEW 6" FLANGED SLUICE
GATES, STEMS, AND
HANDWHEELS (TYP. OF 4).
EXISTING NOT SHOWN FOR
CLARITY.
0
1
CU901
INSTALL NEW
REF. DETAIL T
VERTICALLY A[
C GAUGE AND R
TO STRUCTURE W/ 3 1/4"
S.S. EXP. A.B.'s
..._.ALL MECHANICAL PLUG
DURING PHASE I WORK AFTER
COMPLETION OF DECANTING
OPERATIONS
RISING STEM W/ SIGHT
GLASS TUBE (TYP. OF
J ALL GATES)
U I
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II II
II II
II II
II II v
II II w
�I I II caa
I I
II II
II II a
II II �
II II
II I II �7_
Ij jl co
II II I
II II
II I II
II II
li it O.W. 11.89,
°
°
RISING STEM GUIDES
(TYP. OF ALL GATES)
REPAIR CONSTRUCTION JOINTS AND
COMPRESSION JOINTS TYP. BOTH
LAGOON AND POLISHING POND
EFFLUENT BOXES (REF. NOTE 1)
I ELASTOMERIC
r SEALANT. OVERLAP
PER MANUFACTURER
NORMAL WATER ° ° °°
°.. LEVEL 9.56'
n
TOP 9.5'
°
°1 a FIELD MEASURE ALL OPENINGS
° TOP 8.53 \ �� ° BEFORE FABRICATING SLUICE GATES.
INVERTS ARE SHOWN APPROX. ONLY.
a
° INV. 8.37' INSTALL MECHANICAL PLUG DURING
1 I a PHASE I WORK AFTER COMPLETION
\ ,/ INV. 7.43' a OF DECANTING OPERATIONS
I REINFORCED GEOMEMBRANE —
1 I ° LINER REF. DETS. SHT.
\ 1 CU900
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INV. 6.53' i I 'NV. 3.94'
a ° °. 41
° °
° d
A °
CONTRACTOR SHALL SECTION INSTALL BATTEN STRIPS CONTRACTOR SHALL
DEMOLISH, REMOVE, AND ANCHORING AROUND DEMOLISH, REMOVE,
AND DISPOSE OF ENTIRE STRUCTURE REF. AND DISPOSE OF
CONC. SLAB DETS. SHT. CU900 CONC. SLAB
EFFLUENT BOX DETAIL
1 SEWAGE LAGOON 2
�901
!!)01SCALE: 1" = 1'-0" CU901 Cl
1 2
�i
INSTALL NEW STAFF GAUGE REF.
DETAIL THIS SHEET VERTICALLY
ADJUST STAFF GAUGE AND
RE–ANCHOR TO STRUCTURE W/
3 1/4" S.S. EXP. A.B.'s
°
J
INSTALL MECHANIC
PLUG DURING PERI
WHEN LINER IS BEI
REPLACED IN T
POLISHING PO
LEGEND:
MANUFACTURER MFR.
REFERENCE
REF.
WITH
W/
NORMALLY CLOSED
N.C.
BALL VALVE
B.V.
GATE VALVE
G.V.
ON CENTER
O.C.
STAINLESS STEEL
S.S. / STN. STL.
ELBOW/BEND
EL
TYPICAL
TYP.
CENTERLINE
HORSEPOWER
H.P.
APPROXIMATE
APPROX.
NOT IN CONTRACT N.I.C.
DEMOLITION LEGEND:
DEMOLISH
3 1/2"
0 "0" AT TOP OF BERM
(MIN. BERM)
TENTH OF A FOOT
GRADUATED
1
NOTE: CONTRACTOR
SHALL INSTALL ON
EXISTING ANGLE BRACKET
W/ S.S. HARDWARE
2
BOTTOM OF BASIN
STAFF GAUGE DETAIL
SCALE: 1" = 1'-0"
°
°
°
HIGH OPERATING
WATER LEVEL 6.45' – –
NORMAL WATER °
LEVEL BASED ON
C12 TANK WEIR --
CHANNEL 6.16' 7
INV. 5.31'
I
PLUG DURING PERIOD
NSTALL MECHANICAL
WHEN LINER IS BEING
REPLACED IN THE
POLISHING POND
°
°
0
4..
0
SECTION
0
°
a
EFFLUENT BOX D
POLISHING POND
SCALE: 1" = 1'-0"
3
o�
8" EFFLUENT TO
CHLORINE BLDG.
8" DRAIN TO
° CHLORINE
CONTACT TANK
°
0 —
INSTALL BATTEN STRIPS
AND ANCHORING AROUND
ENTIRE STRUCTURE REF.
DETS. SHT. CU900
ETAIL
4 5 UNCLASSIFIED//FOR OFFICIAL USE ONLY
SEQUENCE OF CONSTRUCTION AND SCOPE OF WORK CLARIFICATIONS
1. GENERAL: THE SEQUENCE OF WORK DESCRIBED IN THIS SECTION IS PROVIDED TO DEFINE GENERAL
CONSTRUCTION SEQUENCING THAT IS INTENDED TO MINIMIZE THE FINAL PROJECT COST TO THE CONTRACTING
OFFICER WHILE FAIRLY COMPENSATING THE CONTRACTOR FOR ACTUAL QUANTITIES RELATED TO THE FOLLOWING
ACTIVITIES;
• PUMPING, TRANSPORT AND DISPOSAL OF DECANT FROM THE BOGUE WWTP TO MCAS WWTP.
• LIME STABILIZE, HAUL AND LAND APPLY LIQUID SLUDGE ONTO PERMITTED LAND APPLICATION SITES.
• ADDRESS UNSUITABLE SOIL THROUGH INSITU LIME STABILIZATION OR REMOVE/REPLACE.
2. CONTRACTOR NOTIFICATION AND WORK RESPONSIBILITIES: CONTRACTOR SHALL NOTIFY THE CONTRACTING
OFFICER AT LEAST (2) WEEKS BEFORE WORK IS TO COMMENCE WITHIN THE LAGOON. IF AT THIS TIME THE D
CONTRACTING OFFICER DETERMINES THAT ADDITIONAL TIME IS NEEDED FOR THE CONTRACTING OFFICER TO
COMPLETE THE REMOVAL OF DECANT FROM THE LAGOON TO THE POLISHING POND, THE CONTRACTING
OFFICER RESERVES THE RIGHT TO DELAY THE START OF WORK AT THE LAGOON FOR UP TO (60) DAYS
BEYOND THE DATE OF ISSUANCE OF THE NOTICE TO PROCEED. IN THE EVENT AUTHORIZATION TO PROCEED IS
DELAYED BEYOND THIS (60) DAY PERIOD, THE CONTRACTOR SHALL BE ALLOWED ONE EXTRA DAY OF
CONTRACT COMPLETION TIME FOR EVERY DAY THE NOTICE TO COMMENCE OCCURS BEYOND THIS (60) DAY
PERIOD. FOR THE BASIS OF BID, UNDER NO CIRCUMSTANCES WILL WORK IN THE LAGOON BE DELAYED BY o
THE CONTRACTING OFFICER MORE THAN (90) DAYS BEYOND THE ISSUANCE OF THE NOTICE TO PROCEED.
3. START OF WORK: UPON RECEIPT OF NOTICE TO COMMENCE WORK WITHIN THE LAGOON, THE CONTRACTOR
SHALL FULLY MOBILIZE AND BEGIN WORK IN A SEQUENCE CONSISTENT WITH FOLLOWING NOTES/PARAGRAPHS.
4. BYPASS LINE INSTALLATION AND DECANTING OF LAGOON (BEGIN PHASE I); SEVEN (7) DAYS IN ADVANCE TO
INSTALLING THE BYPASS LINE TO THE POLISHING POND, THE CONTRACTOR SHALL INSTALL THE STILLING
CURTAIN IN THE POLISHING POND AND COORDINATE WITH THE CONTRACTING OFFICER FOR A SUITABLE TIME
THAT THE INFLUENT PUMP STATION CAN BE TEMPORARILY STOPPED SO THAT THE TEMPORARY 4" BYPASS
LINE CAN BE CONNECTED TO THE EXISTING RAW WASTEWATER FORCEMAIN. CONTRACTING OFFICER MAY
REQUIRE THIS CONNECTION BE COMPLETED OUTSIDE NORMAL WORK HOURS. ONCE THIS IS INSTALLED, THE
CONTRACTING OFFICER SHALL BE ALLOWED TWO WEEKS TO DIVERT REMAINING LAGOON DECANT OVER TO THE
POLISHING POND VIA THE LAGOON EFFLUENT BOX. DIVERSION OF LAGOON DECANT SHALL BE STOPPED IF
POLISHING POND EFFLUENT QUALITY BEGINS TO DETERIORATE AND PERMITTED EFFLUENT STANDARDS CANNOT
BE MET. ONCE REMOVAL OF DECANT BY THE CONTRACTING OFFICER IS COMPLETE TO THE EXTENT POSSIBLE, •+�iE�s�'s�ifi
THE CONTRACTOR SHALL INSTALL PLUGS IN THE LAGOON EFFLUENT BOX TO INSURE COMPLETE ISOLATION OF,,1�1 CA',
THE LAGOON, AND THEN PUMP AND HAUL ANY REMAINING DECANT TO MCASCP FOR DISPOSAL INTO A`-.,ssi;-.
DESIGNATED MANHOLE UPSTREAM OF PUMP STATION 84259. THE CONTRACTOR SHALL PUMP OUT SUFFICIENT `40 •':-y
DECANT SUCH THAT THE REMAINING DEPOSITED SLUDGE IS CONCENTRATED TO A TOTAL SOLIDS S� t
CONCENTRATION OF AT LEAST 3%. 15(0
5. REMOVAL OF LIQUID SLUDGE FROM LAGOON AND LINER DISPOSAL (PHASE 1): THE CONTRACTOR SHALL+�ti'�,`-•.,.INV
.,. >*,
REMOVE, LIME STABILIZE, TRANSPORT AND LAND APPLY DEPOSITED SLUDGE IN THE LAGOON ONTO PERMITTED N 07T E}jQwI
SITE(S) BEING UTILIZED BY THE MCAS CHERRY POINT WWTP (SEE SHT. C030). COMPENSATION FOR SLUDGE SEAL
DISPOSAL SHALL BE BASED ON A SLUDGE WITH A MINIMUM 3% TOTAL SOLIDS PRIOR TO LIME ADDITION FOR
STABILIZATION. THE CONTRACTOR SHALL UTILIZE THE SERVICES OF CRAVEN AGRICULTURE IN PERFORMING THIS - ENGINEERING
WORK TO INSURE ALL WORK IS PERFORMED IN CONFORMANCE WITH THE CURRENT LAND APPLICATION PERMIT
GOVERNING THE APPLICATION OF SLUDGE BEING PRODUCED AT THE MCAS CHERRY POINT WASTEWATER Structural Consultants
TREATMENT PLANT. CONTRACTOR TO PERFORM DEMOLITION OF ALL ITEMS INDICATED AND DISPOSE OF LINER. 748 Lord Dunmore Drive, Suite 101
Virginia Beach, VA 23464
Phone [phone]
Fax [phone]
6. TREATMENT OF UNSUITABLE SOILS AND FINAL GRADING (PHASE 1) ONCE THE EXISTING LINER IS REMOVED
AND DISPOSED, THE CONTRACTOR SHALL INSTALL UNDERDRAINS AND PUMP OUT ANY RECOVERABLE WATER Dewberry
AND TRANSFER TO THE POLISHING POND. ONCE THE SOILS IN THE LAGOON ARE ALLOWED AT LEAST TWO Dewberry Engineers Inc.
WEEKS TO GRAVITY DEWATER, THE SOILS IN THE LAGOON SHALL BE TESTED VIA RUBBER TIRE ROLL TESTING. 261OWYCLIFFROAD
SUITE 410
SOILS THAT ARE FOUND TO BE PUMPING SHALL BE LIME STABILIZED BY APPLYING LIME AND INCORPORATING RALEIGH 1988197
PHONE'. 9NC 27 .9939
BY DISKING FOLLOWED BY RECOMPACTION. ALTERNATIVELY, IF MORE COST EFFECTIVE, CONTRACTOR SHALL FAX NCBELS 9,9.331.9#80992
983 A/E INFO
REMOVE UNSUITABLE SOIL, TRANSPORT TO DESIGNATED LOCATIONS AT MCALF BOGUE (SEE SHT. G001), APPROVED
SPREAD, SEED AND THEN PROVIDE SUITABLE SOIL FROM OFFSITE, PLACE AND COMPACT IN PLACE. UNIT
PRICE TO INCLUDE BOTH REMOVAL AND PLACE BACK OF UNSUITABLE MATERIAL AND SHALL BE MEASURED
BASED ON COMPACTED IN–PLACE MATERIAL. THE CONTRACTOR SHALL EMPLOY THE SERVICES OF A LICENSED FOR COMMANDER NAVFAC
GEOTECH TO OBSERVE AND APPROVE LIME STABILIZATION OF UNSUITABLE SOILS OR THE PLACEMENT AND ACTIVITY
COMPACTION OF OFFSITE SOILS. UPON THE GEOTECH'S APPROVAL THE CONTRACTOR SHALL ALSO OBTAIN THE
SERVICES OF A QUALIFIED REPRESENTATIVE OF THE GEOTECHNICAL MEMBRANE MANUFACTURER TO CONFIRM
AND APPROVE IN WRITING SUITABLE CONDITIONS FOR PROPER MEMBRANE INSTALLATION.
SATISFACTORY TO DATE
DES DRW CHK
7. MEMBRANE INSTALLATION (PHASE 1); CONTRACTOR SHALL PROCEED WITH INSTALLATION OF THE MEMBRANE PM/DM
LINER SYSTEM IN THE LAGOON. BRANCH MANAGER
CHIEF ENG/ARCH
8. SWITCHOVER (END PHASE I .START PHASE 11); ONCE CONSTRUCTION OF THE LAGOON HAS BEEN COMPLETED FIRE PROTECTION
AND APPROVED BY THE CONTRACTING OFFICER, OPERATION OF THE INFLUENT PUMP STATION SHALL BE > z
TEMPORARILY HALTED AND THE FORCEMAIN RE–CONNECTED TO THE LAGOON INFLUENT LINE TO RESTORE J
FLOW TO THE LAGOON. THE TEMPORARY FORCEMAIN SHALL BE REMOVED. o
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9. CLEAN OUT OF POLISHING POND AND LINER DISPOSAL (PHASE 11) PUMP OUT ANY REMAINING CONTENTS OF z Z = t , 06THE POLISHING POND (INCLUDING ANY RESIDUAL SLUDGE) AND TRANSFER TO THE INFLUENT END OF THE Q F � w �
LAGOON. REMOVE AND DISPOSE OF THE LINER AND ALL CONSTRUCTION DEBRIS SUCH AS ABANDONED Z QO
COMPONENTS OF THE BUBBLER SYSTEM, FLOATS, CABLES, VENT PIPING, ANCHORS AND ANY OTHER ITEMS o > W LU
THAT WILL INTERFERE WITH THE INSTALLATION OF THE NEW LINER SYSTEM. INSTALL 8" GATE VALVE ON 0 1 z w
POLISHING POND EFFLUENT LINE AND INSTALL A TEMPORARY MECHANICAL PLUG IN THE DRAIN LINE EXITING 1 o U j (�_
THE POLISHING POND EFFLUENT BOX.0-
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10. MEMBRANE INSTALLATION (PHASE II): ONCE THE POLISHING POND LINER IS REMOVED AND DISPOSED, INSTALL _ U
UNDERDRAINS, DRAIN SOILS, ADDRESS UNSUITABLE SOILS BY LIME STABILIZATION OR REMOVAL ANLU
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REPLACEMENT, TEST ROLL SOILS, AND PROCEED WITH INSTALLATION OF THE LINER SYSTEM AS NOTED ABOVE v U w Q
FOR THE LAGOON. IF MORE THAN (45) DAYS IS REQUIRED FROM THE TIME THE RAW FLOW IS RE–DIVERTED =5 U J
TO THE LAGOON UNTIL THE POLISHING POND WILL BE READY TO BE PLACED BACK IN SERVICE, THE C7 Q
CONTRACTOR SHALL PROVIDE PORTABLE PUMPING TO TRANSFER LAGOON EFFLUENT DIRECT TO THE POLISHING w m w
POND EFFLUENT MANHOLE FOR DISINFECTION AND SPRAY APPLICATION. THIS TRANSFER SHALL BE z w
COORDINATED WITH THE CONTRACTING OFFICER AND FLOW REGULATED TO MAINTAIN A CONSTANT TRANSFER LU
RATE OF UP TO 200 GPM. A TYPICAL TOTAL AVERAGE DAILY TRANSFER OF 17,000 GPD IS ANTICIPATED z zo O
DURING THIS PERIOD. w Of (/)
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11. PLACE SYSTEM BACK INTO OPERATION (END PHASE 11): REINSTALL SAFETY FENCES AROUND BOTH ~ cl:� M
BASINS. REMOVE ALL TEMPORARY PLUGS, OPEN 8" POLISHING POND EFFLUENT VALVE AND REMOVE ALL J a z
TEMPORARY PIPING AND EQUIPMENT USED FOR TEMPORARY PUMPING. PROCEED WITH FINAL GRADING, U z
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SEEDING, SITE RESTORATION ETC, AS INDICATED IN THE CONTRACT DOCUMENTS. LL_ W
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LAYOUT NOTES: z 02 z W
1. CLEAN AND APPLY PER MANUFACTURER AND TO ALL EXPOSED EXTERIOR CONSTRUCTION AND COMPRESSION " <
JOINTS TO PROVIDE A WATERTIGHT SEAL TO PREVENT LEAKAGE FROM BASINS INTO EACH EFFLUENT BOX. Z
SEALANT SHALL CONFORM TO ASTM C-920.
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0' 6' 1' 2' SCALE: AS NOTED
EPROJECT NO.: —
MAXIMO WORK ORDER NO.
SCALE 1" = 1' - 0" 6680410
NAVFAC DRAWING NO.
PERMIT SET XXXXF
SHEET 12 OF 17
DO NOT USE FOR CONSTRUCTION C U 901
4 5 DRAWFORM REVISION: 10 MARCH 2009
UNCLASSIFIED//FOR OFFICIAL USE ONLY
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GRADE
NDISTURBED SOIL
FINAL
BACKFILL
INITIAL
BACKFILL
SPRING LINE '
#67 STONE
8
HAUNCHING
• • PIPE GRADE
0
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4" BEDDING
TAMP WELL o o •
UNDER BOTTOM /MINIMUM SIDE
HALF OF PIPE 6' D. OF PIP 6' CLEARANCE
NOTES:
1. TRENCHES REQUIRING SHORING AND BRACING, DIMENSIONS SHALL BE TAKEN FROM THE
INSIDE FACE OF THE SHORING AND BRACING.
2. NO ROCKS OR BOULDERS 4" OR LARGER TO BE USED IN INITIAL BACKFILL.
3. ALL BACKFILL MATERIAL SHALL BE SUITABLE NATIVE MATERIAL.
4. BACKFILL SHALL BE TAMPED IN 6" LIFTS IN TRAFFIC AREAS, 12" IN NON—TRAFFIC AREAS.
TYPICAL BEDDING FOR PLASTIC PIPE DETAIL
SCALE: NOT TO SCALE
3/4"0 x 14"
ANCHOR BOLTS -7
TAINLESS
TEEL
2 1/2"
KI
VERTICAL SUMMIT BENDS
\.A EXIST.GRADEEXIST. PIPE -
(TO REMAIN
IN SERVICE)
DETAIL SHOWING TEES
COMPACTED BACKFILL
COMPACTED BACKFILL OR
CONC. AT CONTRACTOR'S
OPTION
SOLID CAP—qqmmw �`—SOLID CAP
CONC. THRUST PORTION OF EXIST. AND REMOVE
HORIZONTAL & VERTICAL BENDS BLOCK SECTION PIPE
CONDITION WHERE EX. PIPE IS ABANDONED
PIPELINE THRUST BLOCK DATA
PIPE
SIZE
TEES AND
DEADENDS
90°
BEND
45°
BEND
22 1/2
BE D
11 EVD
BE D
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2"-3"
12"
8"
6"
12"
8"
6"
8"
8"
6"
8"
8"
6"
6"
6"
6-
4"-6*
2'-6"
V-8"
10"
2'-4"
V-4"
8"
V-8"
V-6"
8"
V-0"
V-2"
6"
1'-0"
1'-2"
6"
8"
3'-8"
2'-0"
V-3"
2'-6"
2'-0"
10"
2'-8"
V-6"
10"
V-8"
V-4"
8"
1'-0"
1'-4"
8"
10"
4'-0"
2'-0"
V-6"
3'-0"
2'-0"
10"
3'-0"
V-8"
1'-0"
2'-0"
V-6"
8"
V-3"
V-6"
8"
12"
7'-0"
5'-0"
3'-0"
7'-0"
5'-0"
3'-0"
6'-0"
3'-0"
2'-0"
6'-0"
2'-6"
2'-0"
4'-0"
2'-0"
1'-0"
1. PIPE LINES SHALL NOT BE PUT UNDER PRESSURE UNTIL 7
DAYS AFTER THE THRUST BLOCKS HAVE BEEN PLACED OR
UNTIL THE BLOCKS HAVE ATTAINED 3000 PSI STRENGTH.
2. THRUST BLOCKS AT REDUCING FITTING SHALL BE SAME
SIZE AS REQUIRED FOR A DEAD END THRUST BLOCK FOR
THE LARGER PIPE.
DESIGN DATA ALLOWABLE BEARING
VALUE: 2000 PSF
3. WHERE UNDERGROUND CONDITIONS ARE WET & UNSTABLE
TIE RODS SHALL BE ADDED AND/OR THE AMOUNT OF
CONCRETE IN THE THRUST BLOCKS SHALL BE INCREASED
AT THE DISCRETION OF THE CONTRACTING OFFICER.
4. ANY DEVIATION IN THE TYPE OR METHOD OF RESTRAINING
JOINTS AT THE CUTOVER POINTS MUST BE APPROVED BY
THE CONTRACTING OFFICER PRIOR TO PERFORMING WORK.
VALVE BOX COVER
7%" MIN.
FINISHED GRADE
IN UNPAVED AREA
- -- -_ -- --_ - CONCRETE
- - -- -- PROTECTOR
RING
TAMPED BACKFILL VALVE BOX
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TAMPED
BACKFILL o
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SECTION
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NOTES:
1. VALVE BOX SHALL NOT CONTACT WATER MAIN OR VALVE. PLAN
CONCRETE
2. CONCRETE PROTECTOR RING SHALL BE USED IN ALL ENCASEMENT
UNPAVED AREAS. AT 3,000 P.S.I.
TYPICAL VALVE AND VALVE BOX INSTALLATION DETAIL
SCALE: NOT TO SCALE
FIN. GRADE
EXTENSION STEM
BONNET -
PINNED CONNECTION
INSTALL LEVER OR GEAR
OPERATOR ON BONNET
3' f
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BY VALVE M FR.
TYPICAL VALVE W/ OPERATOR DETAIL
SCALE: NOT TO SCALE
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SCALE: NOT TO SCALE
1 2 3 4
FIELD 1 ELEV. 15.0' TYP.
FIELD 2 ELEV. 16.5' TYP.
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,,-12" SQ. CONCRETE ENCASEMENT (3/4"
CHAMFER ON ALL EXPOSED EDGES)
VALVE BOX FOR TEE
VARIES WRENCH ACTUATOR
3"x1 1/4" RED.
EL. (7 REQ'D)
4"X1 1/4" RED.
END SCH. 80 < EL. (2 REQ'D)
PVC START
GALV. STEEL
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4'-0"
TYPICAL SPRINKLER AND BASE DETAIL
SCALE: NOT TO SCALE
SPRINKLER CONTROL VALVE
3" PLUG VALVE (7 REQ'D)
4" PLUG VALVE (2 REQ'D)
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ENGINEERING
Structural Consultants
748 Lord Dunmore Drive, Sudte 101
Virginia Beach, VA23464
Phone [phone]
Fax [phone]
Dewberry'
Dewberry Engineers Inc.
2610 WYCLI FF ROAD
SUITE 410
RALEIGH, NC 27607
PHONE'. 919.881 .9939
FAX [phone] A/E INFO
NCBELS #F-0929
APPROVED
FOR COMMANDER NAVFAC
ACTIVITY
PERMIT SET XXXXF
SHEET 14 OF 17
DO NOT USE FOR CONSTRUCTION C U 903
5 DRAWFORM REVISION: 10 MARCH 2009
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TYP.
PROVIDE SILT-/ -
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- APPROX. LOCATION OF CREEK
2 ' 3
LEGEND:
PROJECT LIMITS
LIMITS OF LAND
DISTURBANCE
SILT FENCE
CONSTRUCTION
ENTRANCE
GRAVEL SILT
FENCE OUTLET
NOTES:
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1. SEE SHEET G002 FOR GENERAL NOTES.
2. SEE SHEET C010 FOR TOPOGRAPHIC SURVEY NOTES
AND LEGEND.
3. SEE SHEET CO20 FOR LOCATION OF SURVEY
CONTROL.
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INV IN(E). 3 94
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PUMP STATION
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748 Lord Dunmore Drive, Suite 101
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Phone [phone]
Fax [phone]
Dewberry`
Dewberry Engineers Inc.
2810 WYCUFF ROAD
SUITE 410
RALEIGH, NC 27807
PHONE: [phone]
FAX [phone]
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NCBELS #F-0929
APPROVED
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SEE SHEET CG900 FOR EROSION AND SEDIMENTATION
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THE BOTTOM OF THE LAGOON AND POLISHING POND SHALL
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NAVFAC DRAWING NO.
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SHEET 15
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DO NOT USE FOR CONSTRUCTION
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EROSION AND SEDIMENTATION CONTROL
CONSTRUCTION SEQUENCE NOTES
1. NO LAND DISTURBING ACTIVITIES SHALL TAKE PLACE OUTSIDE OF PROJECT LIMITS.
2. NO DEMOLITION, CONSTRUCTION, OR LAND DISTURBANCE ACTIVITIES SHALL BEGIN UNTIL ALL
APPLICABLE EROSION AND SEDIMENT CONTROL MEASURES HAVE BEEN INSTALLED IN
LOCATIONS AS SHOWN ON THE CONTRACT DRAWINGS. IF CLEARING IS REQUIRED FOR
INSTALLATION OF A GIVEN MEASURE, ALL OTHER MEASURES SHALL BE INSTALLED FIRST.
THE NECESSARY LAND DISTURBANCE ACTIVITIES REQUIRED FOR INSTALLATION OF THE GIVEN
MEASURE MAY THEN PROCEED.
3. UTILITIES SHOWN IN APPROXIMATE MANNER ONLY. CONTRACTOR SHALL VERIFY LOCATION
AND ELEVATION OF EXISTING UTILITIES PRIOR TO DEMOLITION, CONSTRUCTION OR LAND
DISTURBANCE ACTIVITIES BEGIN.
4. INSTALL CONSTRUCTION ENTRANCES, SILT FENCE, AND GRAVEL SILT FENCE OUTLETS IN
LOCATIONS SHOWN ON PLANS. CONTRACTOR SHALL COORDINATE LOCATION OF
CONSTRUCTION ENTRANCES WITH CONTRACTING OFFICER.
5. PROVIDE TEMPORARY SEEDING TO ALL DENUDED AREAS AFTER CLEARING OPERATIONS
WITHIN 7 CALENDAR DAYS. PROVIDE PERMANENT GROUNDCOVER WITHIN THE SHORTER OF
15 WORKING DAYS OR 60 CALENDAR DAYS OF ESTABLISHING FINAL GRADES.
6. PERMANENT EROSION CONTROL DEVICES SHALL BE INSTALLED WITH PERMANENT DRAINAGE
FEATURES.
7. TEMPORARY EROSION CONTROL MEASURES SHALL BE REMOVED ONCE CONSTRUCTION IS
COMPLETE AND THE SITE HAS BEEN STABILIZED.
8. THE NPDES CONSTRUCTION PERMIT REQUIRES EROSION CONTROL DEVICES AND STORM
WATER OUTFALLS BE INSPECTED WEEKLY (EVERY 7 CALENDAR DAYS) AND WITHIN 24 HRS
OF A .5 INCH RAIN EVENT. IT WILL BE THE RESPONSIBILITY OF THE CONTRACTOR TO
CONDUCT THESE INSPECTIONS AND MAINTAIN RECORDS UNTIL THE AREA HAS
STABILIZED, EVIDENT BY 95% VEGETATIVE GROWTH FOR AREAS PROVIDED SEEDING. TO
FACILITATE RAINFALL MONITORING A RAIN GAUGE IS REQUIRED TO BE ON
SITE. ADDITIONALLY THE CONTRACTOR IS RESPONSIBLE FOR CONDUCTING "SELF
INSPECTIONS" INDICATING THE DATE BMPS ARE INSTALLED AND STABILIZATION
MEASURES (SEEDING/MULCHING OR SOD) ARE INITIATED. THE "SELF INSPECTION" REPORTS
WILL BE MAINTAINED ALONG WITH THE "NPDES" INSPECTION REPORTS. ONCE STABILIZATION
HAS BEEN ACCOMPLISHED INSPECTION RECORDS ARE TO BE FORWARDED TO EAD AND ALL
TEMPORARY EROSION/SEDIMENTATION CONTROL DEVICES REMOVED. THE CONTRACTOR IS
RESPONSIBLE FOR MAINTAINING COMPLIANCE WITH ALL PERMITS AND PLANS, ANY CHANGES
WILL BE APPROVED BY THE STATE PRIOR TO EXECUTION. A COPY OF THE EROSION AND
SEDIMENTATION CONTROL PLAN, LETTER OF APPROVAL, AND NPDES CONSTRUCTION PERMIT
WILL BE MAINTAINED BY THE CONTRACTOR AT THE ONSITE OFFICE. IF SOIL IS REMOVED
FROM OR BROUGHT ONSITE, THE APPLICABLE SOLID WASTE MANAGEMENT PERMIT NUMBER,
EROSION SEDIMENTATION PERMIT NUMBER OR MINE PERMIT NUMBER WILL BE DISCLOSED.
9. THE CONTRACTOR SHALL BE RESPONSIBLE FOR THE CONTROL OF SEDIMENT ON-SITE. IF
THE APPROVED EROSION AND SEDIMENTATION CONTROL MEASURES PROVE INSUFFICIENT,
THE CONTRACTOR MUST TAKE THOSE ADDITIONAL STEPS NECESSARY TO STOP SEDIMENT
FROM LEAVING THE SITE.
10. ANY BORROW MATERIAL BROUGHT ONTO THIS SITE SHALL BE FROM A LEGALLY OPERATED
MINE OR OTHER APPROVED SOURCE. A SINGLE USE BORROW SITE OR AN AREA TO WASTE
MATERIAL IS ONLY PERMISSIBLE IF IT IS OPERATED UNDER THE TOTAL CONTROL OF THE
FINANCIALLY RESPONSIBLE PERSON OR FIRM WHO IS DEVELOPING THIS SITE AND HAS BEEN
SEPARATELY PERMITTED AND INCORPORATED AS PART OF THIS PLAN MEETING ALL THE
REQUIREMENTS OF NC GENERAL STATUTE 74-49(7)f.
11. THE CONTRACTOR SHALL COORDINATE LOCATION OF TEMPORARY STOCKPILE AREAS WITH
THE CONTRACTING OFFICER. IMPACT OF TEMPORARY STORAGE OF EXCAVATED SOILS SHALL
BE MINIMIZED. EXCAVATED SOILS SHALL NOT BE STORED WITHOUT PERMISSION OF THE
CONTRACTING OFFICER. STOCKPILE AREAS SHALL BE DELINEATED WITH SILT FENCE AND
PROVIDED TEMPORARY SEED.
12. PURSUANT TO NC GENERAL STATUTE 113A -54.1(e), THE CONTRACTOR SHALL CONDUCT
'SELF -INSPECTIONS' OF EROSION CONTROL DEVICES AT COMPLETION OF EACH
CONSTRUCTION PHASE AND DOCUMENT SUCH INSPECTIONS AS OUTLINED IN 5A NCAC 04B
.0131.
13. CONTRACTOR SHALL MAINTAIN COMPLIANCE WITH ALL PERMITS AND PLANS. ANY CHANGES
SHALL BE APPROVED BY THE STATE PRIOR TO EXECUTION. A COPY OF ALL PERMITS SHALL
BE MAINTAINED BY THE CONTRACTOR ON-SITE AT ALL TIMES.
14. CONTRACTOR RESPONSIBLE FOR REMOVAL OF TEMPORARY EROSION CONTROL DEVICES
ONCE PERMANENT GROUND COVER HAS BEEN ESTABLISHED AND APPROVED.
i
2-3" COARSE AGGREGATE
NOTE:
GRAVEL PAD IS REQUIRED TO PROVIDE BUFFER AREA WHERE VEHICLES CAN DROP THEIR
MUD AND SEDIMENT TO AVOID TRANSPORTING IT ONTO PAVED STREETS, TO CONTROL
EROSION FROM SURFACE RUNOFF, AND TO HELP CONTROL DUST.
MAINTENANCE:
1. INSPECT TEMPORARY ENTRANCE/EXIT PAD ONCE PER WEEK AND AFTER EVERY RAINFALL.
2. REPLACE GRAVEL PAD WHEN AGGREGATE IS CLOGGED WITH SEDIMENT AND/OR WHEN
SEDIMENT IS BEING TRACKED ON ROADWAY.
3. IMMEDIATELY REMOVE ALL OBJECTIONABLE MATERIALS SPILLED, WASHED, OR TRACKED
ONTO PUBLIC ROADWAYS.
TYPICAL CONSTRUCTION ENTRANCE
DETAIL (TEMPORARY)
NOT TO SCALE
2 3 �
TYPICAL SEEDING SCHEDULE IN COASTAL AREAS (TEMPORARY)
1. LIME, SEED AND FERTILIZER SHALL BE APPLIED
WITH NECESSARY EQUIPMENT TO
GIVE UNIFORM DISTRIBUTION OF
THESE MATERIALS. THE
KINDS OF MATERIALS TO BE APPLIED PER ACRE:
W
W W
W
W
FERTILIZER
N
W
DATE TYPE
PLANTING RATE 10-10-10 BLEND** LIMESTONE
STRAW MULCH
DEC. 1 -APR. 15 RYE (GRAIN)
120 LBS. CRE 750
LBS./ACRE 2000 LBS./ACRE
4000 LBS./ACRE
KOBE LESPEDEZA *
50 LBS. ACRE
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slopes greater
APR. 15 - AUG. 15 GERMAN MILLET
40 LBS./ACRE 750
LBS./ACRE 2000 LBS./ACRE
4000 LBS./ACRE
AUG. 15 - DEC. 30 RYE (GRAIN)
120 LBS./ACRE 1000
LBS./ACRE 2000 LBS./ACRE
4000 LBS./ACRE
* OMIT KOBE LESPEDEZA WHEN DURATION OF TEMPORARY COVER IS NOT TO
EXTEND BEYOND JUNE.
** QUANTITY OF FERTILIZER AND LIME SHALL
BE CONFIRMED BY SOILS TEST.
2. CHECK OUTLET FOR EROSION, PIPING, AND ROCK DISPLACEMENT WEEKLY AND AFTER
J
2. SEEDED AREA SHALL BE CULTIPACKED TO FIRM
SEEDBED AND COVER SEED.
■■■■■�■■■■■III■■!■RI MEMO
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3. GRAIN STRAW SHALL BE APPLIED OVER SEEDED
AREAS AS A MULCH WITHIN 24
HOURS OF THE INITIAL SEEDING
OPERATION. NO BARE
GROUND SHALL BE VISIBLE WHEN RIDING BY A
MULCHED AREA IF PROPER APPLICATION IS ACHIEVED. THICK CLUMPS OF STRAW ARE NOT
PERMISSIBLE AS A UNIFORM COVERAGE IS EXPECTED.
4. MULCHED AREA SHALL BE TACKED WITH LIQUID ASPHALT AT A RATE OF 0.10 GALLON PER SQUARE YARD (10 GAL/1000 SQ. FT.).
HYDRAULIC TACKING MATERIAL SHALL BE USED IN HIGH QUALITY WATER ZONES AND CRITICAL HABITAT AREAS.
5. DITCH TREATMENT SHALL BE USED IN AREAS WHERE STEEP GRADES COULD CAUSE DITCH EROSION. USE OF EXCELSIOR MATTING OR
FIBERGLASS/SYNTHETIC ROVING IS ACCEPTABLE. DITCH TREATMENT SHALL BE INSTALLED BEFORE MULCHING OPERATION.
TYPICAL SOD INSTALLATION DETAIL AND SCHEDULE (PERMANENT',
W W W W W W
W W W W W W
W
W
W
STABILIZATION
TIMEFRAME EXCEPTIONS
W
W W
W
W
W
N
W
W
W
W
W
W
W
W
W
W W W W W W
CORRECT IMMM 44M
INCORRECT
BUTTING -ANGLED
ENDS CAUSED BY
THE AUTOMATIC
SOD CUTTING
MUST BE
MATCHED
CORRECTLY.
LAY SOD IN A STAGGERED PATTERN WITH STRIPS BUTTED TIGHTLY
AGAINST EACH OTHER. A SHARPENED MASON'S TROWEL CAN BE
USED TO TUCK DOWN THE ENDS AND TRIM PIECES. FLOW
USE PEGS OR STAPLES TO
FASTEN SOD FIRMLY AT THE
ENDS OF STRIPS AND IN
THE CENTER, OR EVERY
3-4' IF THE STRIPS ARE
LONG. WHEN READY TO
MOW, DRIVE PEGS OR
STAPLES FLUSH WITH THE
GROUND.
LAY SOD ACROSS
THE DIRECTION
OF FLOW.
IN CRITICAL AREAS
(SLOPE GREATER
THAN 3:1), SECURE
SOD WITH NETTING
AND STAPLES.
VARIES (8' MAX.)
-STAY_ WIRES MIN.
4GAUGE -
FI F\/ATIr)M
5 UNCLASSIFIED//FOR OFFICIAL USE ONLY
I�, ANCHOR FILTER
`V FABRIC MIN. 8" DEEP
4" & 4" FORWARD ALONG
THE TRENCH
GENERAL NOTES: SECTION
1. SILT FENCE SHALL BE INSTALLED OUTSIDE TOE OF EARTHFILL EMBANKMENTS. MAY ALSO BE
INSTALLED AROUND ALL STORM DRAIN INLETS, & MANHOLES AS DIRECTED.
2. WIRE SHALL BE A MINIMUM OF 36" IN WIDTH AND SHALL HAVE A MAXIMUM MESH
SPACING OF 6".
3. FILTER FABRIC SHALL BE A MINIMUM OF 36" IN WIDTH AND SHALL BE FASTENED
SECURELY TO THE WIRE.
4. STEEL POSTS SHALL BE 5'-0" IN HEIGHT AND BE OF SELF -FASTENER ANGLE STEEL TYPE.
5. IF SUPPORT WIRE IS NOT UTILIZED, THE MAXIMUM SPACING BETWEEN STEEL POSTS
SHALL BE 6FT.
NOTE:
THE FILTER FABRIC SHALL MEET THE FOLLOWING REQUIREMENTS:
A) EOS IS NOT LARGER THAN U.S. STANDARD SIEVE NO.30
B) GRAB STRENGTH 90-120 LB
MAINTENANCE:
1. INSPECT SILT FENCE ONCE PER WEEK AND AFTER EVERY RAINFALL WITHIN 24 TO 48 HOURS.
2. PERIODICALLY REMOVE ACCUMULATED SEDIMENT AND REPAIR ANY DAMAGE TO FENCE.
TYPICAL SILT FENCE DETAIL
(TEMPORARY)
NOT TO SCALE
MAINTENANCE:
AFTER THE FIRST WEEK, WATER AS NECESSARY TO MAINTAIN ADEQUATE MOISTURE IN THE ROOT ZONE
AND PREVENT DORMANCY OF THE SOD. DO NOT REMOVE MORE THAN ONE-THIRD OF THE SHOOT IN ANY
MOWING. GRASS HEIGHT SHOULD BE MAINTAINED BETWEEN 2 AND 3 INCHES UNLESS OTHERWISE
SPECIFIED. AFTER THE FIRST GROWING SEASON, ESTABLISHED SOD REQUIRES FERTILIZATION, AND MAY
ALSO REQUIRE LIME. FOLLOW SOIL TEST RECOMMENDATIONS WHEN POSSIBLE.
FERTILIZER **
DATE TYPE PLANTING RATE 5-10-10 BLEND LIMESTONE
APR. 1 - JULY 31 BERMUDA GRASS SOLID SOD 270 LBS./ACRE 4000 LBS./ACRE
AUG. 1 - MARCH 31 CENTIPEDE GRASS SOLID SOD 1000 LBS./ACRE 4000 LBS./ACRE
1. CONTRACTOR SHALL INSTALL SOD AS PERMANENT VEGETATION IN ALL DISTURBED AREAS NOTED.
2. MOISTENING THE SOD AFTER IT IS UNROLLED HELPS MAINTAIN ITS VIABILITY. STORE IT IN THE SHADE DURING INSTALLATION.
2. RAKE THE SOIL SURFACE TO BREAK THE CRUST JUST BEFORE LAYING SOD. DURING THE SUMMER, LIGHTLY IRRIGATE THE SOIL, IMMEDIATELY BEFORE
LAYING THE SOD TO COOL THE SOIL AND REDUCE ROOT BURNING AND DIEBACK.
3. DO NOT SOD ON GRAVEL, FROZEN SOILS, OR SOILS THAT HAVE BEEN TREATED RECENTLY WITH STERILANTS OR HERBICIDES.
4. LAY THE FIRST ROW OF SOD IN A STRAIGHT LINE WITH SUBSEQUENT ROWS PLACED PARALLEL TO AND BUTTING TIGHTLY AGAINST EACH OTHER. STAGGER
STRIPS IN A BRICK -LIKE PATTERN. BE SURE THAT THE SOD IS NOT STRETCHED OR OVERLAPPED AND THAT ALL JOINTS ARE BUTTED TIGHTLY TO
PREVENT VOIDS. USE A KNIFE OR SHARP SPADE TO TRIM AND FIT
IRREGULARLY SHAPED AREAS.
5. INSTALL STRIPS OF SOD WITH THEIR LONGEST DIMENSION PERPENDICULAR TO THE SLOPE. ON SLOPES 3:1 OR GREATER, OR WHEREVER EROSION MAY
BE A PROBLEM, SECURE SOD WITH PEGS OR STAPLES.
6. AS SODDING OF CLEARLY DEFINED AREAS IS COMPLETED, ROLL SOD TO PROVIDE FIRM CONTACT BETWEEN ROOTS AND SOIL.
7. AFTER ROLLING, IRRIGATE UNTIL THE SOIL IS WET 4 INCHES BELOW THE SOD.
8. KEEP SODDED AREAS MOIST TO A DEPTH OF 4 INCHES UNTIL THE GRASS TAKES ROOT. THIS CAN BE DETERMINED BY GENTLY TUGGING ON THE
SOD -RESISTANCE INDICATES THAT ROOTING HAS OCCURRED.
9. CONTRACTOR SHALL PLAN ON WATERING 0.5 INCHES EVERY THREE DAYS WITH A MINIMUM OF 1.0 INCH PER WEEK FOR A DURATION OF MINIMUM TWO
WEEKS UNTIL THE GRASS ISS R BI I�rEDAND AND RSV THE CONTRACTING OFFIGER.
10. MOWING SHOULD NOT BE ATTEMPTED UNTIL THE SOD IS FIRMLY ROOTED, USUALLY 2-3 WEEKS.
NPDES Stormwater Discharge Permit for Construction Activities (NCG01) NCDENRfDivision of Water Cuality
2
NEW STABILIZATION TIMEFRAMES
(Effective Aug. 3, 2011)
STEEL POST
STABILIZATION
TIMEFRAME EXCEPTIONS
FILTER FABRIC
w
N
None
3'-0" MIN. WIDTH
7 days
N
FILTER FABRIC
wa
If slopes are 10' or less in length and are
not steeper than 2:1, 14 days are allowed.
FILL SLOPE
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7 days for than 50' in length.
N
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slopes greater
.�
I�, ANCHOR FILTER
`V FABRIC MIN. 8" DEEP
4" & 4" FORWARD ALONG
THE TRENCH
GENERAL NOTES: SECTION
1. SILT FENCE SHALL BE INSTALLED OUTSIDE TOE OF EARTHFILL EMBANKMENTS. MAY ALSO BE
INSTALLED AROUND ALL STORM DRAIN INLETS, & MANHOLES AS DIRECTED.
2. WIRE SHALL BE A MINIMUM OF 36" IN WIDTH AND SHALL HAVE A MAXIMUM MESH
SPACING OF 6".
3. FILTER FABRIC SHALL BE A MINIMUM OF 36" IN WIDTH AND SHALL BE FASTENED
SECURELY TO THE WIRE.
4. STEEL POSTS SHALL BE 5'-0" IN HEIGHT AND BE OF SELF -FASTENER ANGLE STEEL TYPE.
5. IF SUPPORT WIRE IS NOT UTILIZED, THE MAXIMUM SPACING BETWEEN STEEL POSTS
SHALL BE 6FT.
NOTE:
THE FILTER FABRIC SHALL MEET THE FOLLOWING REQUIREMENTS:
A) EOS IS NOT LARGER THAN U.S. STANDARD SIEVE NO.30
B) GRAB STRENGTH 90-120 LB
MAINTENANCE:
1. INSPECT SILT FENCE ONCE PER WEEK AND AFTER EVERY RAINFALL WITHIN 24 TO 48 HOURS.
2. PERIODICALLY REMOVE ACCUMULATED SEDIMENT AND REPAIR ANY DAMAGE TO FENCE.
TYPICAL SILT FENCE DETAIL
(TEMPORARY)
NOT TO SCALE
MAINTENANCE:
AFTER THE FIRST WEEK, WATER AS NECESSARY TO MAINTAIN ADEQUATE MOISTURE IN THE ROOT ZONE
AND PREVENT DORMANCY OF THE SOD. DO NOT REMOVE MORE THAN ONE-THIRD OF THE SHOOT IN ANY
MOWING. GRASS HEIGHT SHOULD BE MAINTAINED BETWEEN 2 AND 3 INCHES UNLESS OTHERWISE
SPECIFIED. AFTER THE FIRST GROWING SEASON, ESTABLISHED SOD REQUIRES FERTILIZATION, AND MAY
ALSO REQUIRE LIME. FOLLOW SOIL TEST RECOMMENDATIONS WHEN POSSIBLE.
FERTILIZER **
DATE TYPE PLANTING RATE 5-10-10 BLEND LIMESTONE
APR. 1 - JULY 31 BERMUDA GRASS SOLID SOD 270 LBS./ACRE 4000 LBS./ACRE
AUG. 1 - MARCH 31 CENTIPEDE GRASS SOLID SOD 1000 LBS./ACRE 4000 LBS./ACRE
1. CONTRACTOR SHALL INSTALL SOD AS PERMANENT VEGETATION IN ALL DISTURBED AREAS NOTED.
2. MOISTENING THE SOD AFTER IT IS UNROLLED HELPS MAINTAIN ITS VIABILITY. STORE IT IN THE SHADE DURING INSTALLATION.
2. RAKE THE SOIL SURFACE TO BREAK THE CRUST JUST BEFORE LAYING SOD. DURING THE SUMMER, LIGHTLY IRRIGATE THE SOIL, IMMEDIATELY BEFORE
LAYING THE SOD TO COOL THE SOIL AND REDUCE ROOT BURNING AND DIEBACK.
3. DO NOT SOD ON GRAVEL, FROZEN SOILS, OR SOILS THAT HAVE BEEN TREATED RECENTLY WITH STERILANTS OR HERBICIDES.
4. LAY THE FIRST ROW OF SOD IN A STRAIGHT LINE WITH SUBSEQUENT ROWS PLACED PARALLEL TO AND BUTTING TIGHTLY AGAINST EACH OTHER. STAGGER
STRIPS IN A BRICK -LIKE PATTERN. BE SURE THAT THE SOD IS NOT STRETCHED OR OVERLAPPED AND THAT ALL JOINTS ARE BUTTED TIGHTLY TO
PREVENT VOIDS. USE A KNIFE OR SHARP SPADE TO TRIM AND FIT
IRREGULARLY SHAPED AREAS.
5. INSTALL STRIPS OF SOD WITH THEIR LONGEST DIMENSION PERPENDICULAR TO THE SLOPE. ON SLOPES 3:1 OR GREATER, OR WHEREVER EROSION MAY
BE A PROBLEM, SECURE SOD WITH PEGS OR STAPLES.
6. AS SODDING OF CLEARLY DEFINED AREAS IS COMPLETED, ROLL SOD TO PROVIDE FIRM CONTACT BETWEEN ROOTS AND SOIL.
7. AFTER ROLLING, IRRIGATE UNTIL THE SOIL IS WET 4 INCHES BELOW THE SOD.
8. KEEP SODDED AREAS MOIST TO A DEPTH OF 4 INCHES UNTIL THE GRASS TAKES ROOT. THIS CAN BE DETERMINED BY GENTLY TUGGING ON THE
SOD -RESISTANCE INDICATES THAT ROOTING HAS OCCURRED.
9. CONTRACTOR SHALL PLAN ON WATERING 0.5 INCHES EVERY THREE DAYS WITH A MINIMUM OF 1.0 INCH PER WEEK FOR A DURATION OF MINIMUM TWO
WEEKS UNTIL THE GRASS ISS R BI I�rEDAND AND RSV THE CONTRACTING OFFIGER.
10. MOWING SHOULD NOT BE ATTEMPTED UNTIL THE SOD IS FIRMLY ROOTED, USUALLY 2-3 WEEKS.
NPDES Stormwater Discharge Permit for Construction Activities (NCG01) NCDENRfDivision of Water Cuality
2
NEW STABILIZATION TIMEFRAMES
(Effective Aug. 3, 2011)
SITE AREA DESCRIPTION
STABILIZATION
TIMEFRAME EXCEPTIONS
@)Perimeter dikes, swales, ditches, slopes
7 days
None
High Quality Water (HQW) Zones
7 days
None
Slopes steeper than 3:1
7 days
If slopes are 10' or less in length and are
not steeper than 2:1, 14 days are allowed.
m
Slopes 3:1 flatter
14 days
7 days for than 50' in length.
or
c�
slopes greater
All other areas with slopes flatter than 4:1
14 days
None, except for perimeters and HQW Zones.
TYPICAL STABILIZATION TIMEFRAMES
NOT TO SCALE
3
STEEL FENCE POST
WIRE FENCE
HARDWARE CLOTH
FILTER OF 1" DIA. WASHED STONE
FILTER OF 1 " DIA.
WASHED STONE
SECTION
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ENGINEERING
Structural Consultants
748 Lord Dunmore Drive. Suite 101
Virginia Beach, VA23464
Phone [phone]
Fax [phone]
ft Dewberry'
Dewberry Engineers Inc.
2610 WYCLIFF ROAD
SUITE 410
RALEIGH, NC 27607
PHONE'. 919.881 .9939
FAX [phone] A E INFO
NCBELS #F-0929
APPROVED
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ACTIVITY
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