FLORIDA DEPARTMENT OF ENVIRONMENTAL PROTECTION

FLORIDA DEPARTMENT OF ENVIRONMENTAL PROTECTION RICK SCOTT GOVERNOR CARLOS LOPEZ-CANTERA LT. GOVERNOR NORTHEAST DISTRICT 8800 BAYMEADOWS WAY WEST, SUITE 100 HERSCHEL T. VINYARD JR. JACKSONVILLE, FLORIDA 32256 SECRETARY April 18, 2014 U.S. Army Corps of Engineers Attn: Eric Summa, Chief Environmental Branch Jacksonville District P.O. Box 4970 Jacksonville, FL 32232 Re: File No. 16-183955-008-EE US Marine Corps Support Facility Blount Island Slipway Dear Mr. Summa: We are in receipt of your notice of April 17, 2014, to use the Port Maintenance Dredging Exemption in Section 403.813(3), Florida Statutes. The Department acknowledges your intention to use the exemption and your certification that you meet the requirements of the statute (see attached copy). The scope of work entails dredging approximately 90,000 yd^3 of non-beach quality material with disposal of the material at the upland Dredged Material Management Area (DMMA) Dayson Island. This activity was previously verified as exempt under DEP File No. 16-183955- 007-EE, and most recently maintained in summer of 2013. This letter does not relieve you from the responsibility of obtaining other permits (Federal, State, or local) that may be required for the project. Sincerely, Matthew Kershner Environmental Manager Submerged Lands Environmental Resource Permitting Enclosure: 403.813(1)(f) Project Drawings www.dep.state.fl.us

403.813 Permits issued at district centers; exceptions. (3) A permit is not required under this chapter, chapter 373, chapter 61-691, Laws of Florida, or chapter 25214 or chapter 25270, 1949, Laws of Florida, for maintenance dredging conducted under this section by the seaports of Jacksonville, Port Canaveral, Fort Pierce, Palm Beach, Port Everglades, Miami, Port Manatee, St. Petersburg, Tampa, Port St. Joe, Panama City, Pensacola, Key West, and Fernandina or by inland navigation districts if the dredging to be performed is no more than is necessary to restore previously dredged areas to original design specifications or configurations, previously undisturbed natural areas are not significantly impacted, and the work conducted does not violate the protections for manatees under s. 379.2431(2)(d). In addition: (a) A mixing zone for turbidity is granted within a 150-meter radius from the point of dredging while dredging is ongoing, except that the mixing zone may not extend into areas supporting wetland communities, submerged aquatic vegetation, or hardbottom communities. (b) The discharge of the return water from the site used for the disposal of dredged material shall be allowed only if such discharge does not result in a violation of water quality standards in the receiving waters. The return-water discharge into receiving waters shall be granted a mixing zone for turbidity within a 150-meter radius from the point of discharge into the receiving waters during and immediately after the dredging, except that the mixing zone may not extend into areas supporting wetland communities, submerged aquatic vegetation, or hardbottom communities. Ditches, pipes, and similar types of linear conveyances may not be considered receiving waters for the purposes of this paragraph. (c) The state may not exact a charge for material that this subsection allows a public port or an inland navigation district to remove. In addition, consent to use any sovereignty submerged lands pursuant to this section is hereby granted. (d) The use of flocculants at the site used for disposal of the dredged material is allowed if the use, including supporting documentation, is coordinated in advance with the department and the department has determined that the use is not harmful to water resources. (e) The spoil material from maintenance dredging may be deposited in a self-contained, upland disposal site. The site is not required to be permitted if: 1. The site exists as of January 1, 2011; 2. A professional engineer certifies that the site has been designed in accordance with generally accepted engineering standards for such disposal sites; 3. The site has adequate capacity to receive and retain the dredged material; and 4. The site has operating and maintenance procedures established that allow for discharge of return flow of water and to prevent the escape of the spoil material into the waters of the state. (f) The department must be notified at least 30 days before the commencement of maintenance dredging. The notice shall include, if applicable, the professional engineer certification required by paragraph (e). (g) This subsection does not prohibit maintenance dredging of areas where the loss of original design function and constructed configuration has been caused by a storm event, provided that the dredging is performed as soon as practical after the storm event. Maintenance dredging that commences within 3 years after the storm event shall be presumed to satisfy this provision. If more than 3 years are needed to commence the maintenance dredging after the storm event, a request for a specific time extension to perform the maintenance dredging shall be submitted to www.dep.state.fl.us

the department, prior to the end of the 3-year period, accompanied by a statement, including supporting documentation, demonstrating that contractors are not available or that additional time is needed to obtain authorization for the maintenance dredging from the United States Army Corps of Engineers. www.dep.state.fl.us

MARINE CORPS SUPPORT FACILITY BLOUNT ISLAND SLIPWAY CHANNEL BLOUNT ISLAND, DUVAL COUNTY, FL. 38-FOOT MAINTENANCE DREDGING PROJECT GI!!CRGIA f PROJECT LOCATION Mill. COl IIAIUNE co s SUPPIJIIT FACILIT'f IILOUIII'..,D FORT CAROU~ >./ ---- -..~t / I \,'f I ~ PROJEcT VICI ITY 01 02 03 04 05 06 07 08 INDEX TO DRAWINGS TITLE COVER SHEET SLIPWAY- PROJECT SITE SLIPWAY CHANNEL CONTROL DATA SLIPWAY DREDGING PLAN (STA. 0+00 TO STA.28+00) SLIPWAY DREDGING PLAN (STA. 28+00 TO STA. 56+09.1) TYPICAL CHANNEL CROSS-SECTION EXISTING DAYSON ISLAND DMMA TYPICAL DMMA CROSS SECTIONS ABBREVIATIONS: APPROX. = APPROXIMATE DIA = DISPOSAL AREA DWG. =DRAWING CONC. = CONCRETE E. =EAST ELEV. = ELEVATION FT. = FOOT/FEET HOPE. = HIGH DENSITY POLYETHYLENE MAX. = MAXIMUM MCS = MARINE CORPS SLIPWAY MIN. = MINIMUM M.H.W. =MEAN HIGH WATER M.L.W. = MEAN LOW WATER M.L.L.W. =MEAN LOWERLOWWATER N. =NORTH NO. =NUMBER NOS. = NUMBERS N.T.S. = NOT TO SCALE RGE. =RANGE S. =SOUTH STA. = STATIONING TYP. =TYPICAL USACE. = UNITED STATES ARMY CORPS OF ENGINEERS USCG. = UNITED STATES COAST GUARD W. =WEST WI =WITH LEGEND: - PROJECT CHANNEL ~ - AREA TO BE DREDGED E!'IEI - BOULDERSIRIPRAP ~ - DREDGED MATERIAL MANAGEMENT AREA (DMMA) ~ - DREDGE PIPELINE ROUTE ~ - VERTICAL CONTROL POINT a - HORIZONTAL CONTROL POINT P.! - AIDS TO NAVIGATION 24.5 - ELEVATION AND LOCATION Dlnll1: DATE PROVED REVISION own by: 4104114 JWL MARINE CORPS SUPPORT FACILITY BLOUNT ISLAND L.R.P. NOT FOR CONSTRUCTION DUVAL COUNTY, FLORIDA MAINTENANCE DREDGING PRD.IECT USAIII'I)'Corpe DEPARTMENT OF THE ARMY LRP 01 ofenglnhrs.iacuoiiyillii DI8TIII~, CO-OF iniiin- Datad: COVER SHEET..I&CiaGWILLE, FLO..DA APRIL2014 OF 8

\ \\ \\\ DREDGE PIPELINE LITTLE MARSH ISLAND \ v\jacksonville,~,.::~ ~../'; ' HARBOR CHANNEL 5 ~IY..,. / (T't'P.) EBB 0~~~~ _,/ / / - ~ s1'.j.--.- /.-../'./ -.. -::"r ~r - - - =----..:::::::. - -., / - / / / --!lift-~--------// --,._ - - - ---- - / - --- --;;:oo;;.- / / / -- ---- / ------------,/" MARINE CORPS SUPPORT PRo.IECT SITE 1500' I I GRAPHIC SCALE D II II I 1500' USAIII'I)'Corpe ofenglnhrs NOT FOR CONSTRUCTION DEPARTMENT OF THE ARMY.IACUOIIYILLii DI8TIII~, CO-OF iniiin..i&ciagwille, FLO..DA Dlnb1: JWL own by: LRP Datad: APRIL2014 DATE PROVED REVISION 4104114 L.R.P. MARINE CORPS SUPPORT FACILITY BLOUNT ISLAND DUVAL COUNTY, FLORIDA MAINTENANCE DREDGING PRo.IECT SLIPWAY PRO.JECT SITE 02 OF 8

BERTH2 BER~1 ' BER~4 MCSCHANNEL r CENTERLINE -+---+----i--~-of--1--+---+---f--~-+----+--+---+-~--~-of--l--+-- BERTH3 0 0 + t::i RGE. 707.5 ~~ loiii Ill RGE. 500.0 Z111 :Jill z:!!. ~ RGE.~5 li APPROXIMATE SHORELINE E11B ~ FLOOD --f --1--f _ -~-~;~~~E~- -~-of----------f --1--f--1--+--- --+----i- -~-of-r CENTERLINE ~~~~---------------------7/--~RG.~5 ~""' A.~ C>S' ~/. " " > --- ;-- '... X=495,370.75~ Y..Z,203,119.85 /' JACKSONVIU.E HARBOR' ----------------------------- RGE.707.5 CHANNELLIMITLINE.> _ / X~95,258.335:/ --- Y=2,202,948.55 I _._ /..- --- /!i(j(j' ~ / ~, / x~.1.if.91 -~r:f / Y=2,~173.~&' / / / ~ / / / ~: / GRAPHIC SCALE /,.p~ L 400' 0 US""""Corpe ofenglnhrs JWL MARINE CORPS SUPPORT FACILITY BLOUNT ISLAND NOT FOR CONSTRUCTION Dwn by: DUVAL COUNTY, FLORIDA MAINTENANCE DREDGING PRD.IECT DEPARTMENT OF THE ARMY LRP 03 oiacuoiiyillii DI8TIII~, CO-OF iniiin- Datad: SLIPWAY CHANNEL CONTROL DATA..IACiaGWILLE, R.O..DA APRIL2014 OF 8

38-FOOT REQUIRED DEPTH PLUS 2 FOOT ALLOWABLE OVERDEPTH ~I ~ ~1 ~ ~1 ~ ~ ~ ~.................................................. "' "' -~ -~.. ""' ""' ""' """' ""' ""' ""' """' ""' ""' ""' ""' """' ""' ""' ""' """'.. Dinby: GRAPHIC SCALE 300' 300' I I JWL MARINE CORPS SUPPORT FACILITY BLOUNT ISLAND NOT FOR CONSTRUCTION Dwn by: DUVAL COUNTY, FLORIDA MAINTENANCE DREDGING PRG.IECT USAIII'I)'Corpe DEPARTMENT OF THE ARMY LRP 04 ofenglnhrs.iacuoiiyillii DI8TIII~, CO-OF iniiin Datad: SLIPWAY DREDGING PLAN (STA. 0+00 TO STA. 28+00)..IACiaGWILLE, R.O..DA APRIL2014 OF 8

-.cetw<bor~ / CHANNEL LIMITS / / "' "' "' "' "' "' "' / / "' "' "' "' "' "' "' "' "' "' "' "' "' "' "' "' "' "' "' "' "' "' "' GRAPHIC SCALE "' "' "' "' "' "' "' "' "' "' "' "' "' "' "' "' "' "' "' "' "' "' "' SCAJ.E: "A" ~ ~I~~~~~~~-L----------~ "' "' "' "' "' "' "' Dlnb1: DATE PROVED REVISION 4104114 400' 400' JWL MARINE CORPS SUPPORT FACILITY BLOUNT ISLAND L.R.P. NOT FOR CONSTRUCTION own..,, DUVAL COUNTY, FLORIDA MAINTENANCE DREDGING PRD.IECT USAIII'I)'Corpe DEPARTMENT OF THE ARMY LRP 05 ofenglnhrs.iacuoiiyillii DI8TIII~, CO-OF iniiin- Datad: SLIPWAY DREDGING PLAN (STA.28+00 TO STA.56+09.1)..I&CiaGWILLE, FLO..DA APRIL2014 OF 8 /

BERTHII2 PROJECT CHANNEL ~ SQUARE CONC.PLE [TYP.) 31H'OOT REQUIRED DEPTH 2~00T ALLOWABLE OVERDEPTH EXISTING BOTTOM TYPICAL G SECTION STA. 7+50 HORZ. SCALE 'B' VERT. SCALE "C" Iii w "- 3\!:; 20 PROJECT CHANNEL II..,.: li! ~ ~ Iii w "!: z ~~~ Q APPROX.!( ~~ EXISTING ili BOTTOM.. w ~ 2-FOOT ALLOWABLE OVEROEPTH TYPICAL@ SECTION STA. 42+00 GRAPHIC SCALE HORZ. SCALE 'B' 300' 0 300' VERT. SCALE "C" 'A' I I "B' 30' 0 30' I I Dlnb1: DATE PROVED REVISION JWL MARINE CORPS SUPPORT FACILITY BLOUNT ISLAND 4104114 L.R.P. NOT FOR CONSTRUCTION own by: DUVAL COUNTY, FLORIDA MAINTENANCE DREDGING PRG.IECT US""""Corpe DEPARTMENT OF THE ARMY LRP 06 ofenglnhrs.iacuoiiyillii DI8TIII~, CO-OF iniiin- Oatad: TYPICAL CHANNEL CROSS SECTIONS..I&CiaGWILLE, FLO..DA APRIL2014 OF 8

IIA \. lf.l 17.0.,.. -,14.1.,... n.z 17A tta -.s ) M.l. 1 r 1&1 tu,/ M.J' r'1u \ \.. IU1U ' II. 14.1 MJ tu 1U 1:1.1:' r 1u1u tu.,,.., 1,.., 1U' "''~ 1U lt.l!l"o. ~ IU JIU IU.,;" itr4~ t1.7 #' 14.7,,I tl.t 11.7,,.. IU '":/ItA '10.8 tr~ IU IU IU ~"'Lt 180 DAY80N ISLAND J) DREDoeD 1 MAT~MAHA&i!ENT~ 1, 1U tr.g 11 (DMIIA)IA 1a1 1U 1U IU IU IU 17.7 1J'.8 1&2.. tf.t IU, 166 " ' n IU 1U 11.0 tu tl.9 1U. 11.7 tu 17.t,.,.. N MARINE CORPS IUPPORT FACIUTY BLOUNT IILAND l'f.iiif.ft NOT FOR CONSTRUCTION DUVAL COUNTY, FLORIDA UiiliiiJ MAINTENANCE DREDGING PRG.IECT DEPAID'MENT OF THE ARMY MC-U.-CT,CII-Vf-.,..,, 07 I!XIB"'ING DAYSGN ISLAND DMMA MCMOIIVUI!, ~ APAIL2014 OF 8

TO~~:~~~~ -.. ; ;, ; ~-, ;, ; ;, ; ~- r ~~~~~~ ~ ~ ~ ~ 30 ::: A.~ ::: --~:.%~.~\ -.; :;..;:::.. ~-.:: ;., -~._30 ~ ~ 20 1'!....\(_.::: ~-. -~.; : ~..;::: ~..;.. ~J~---- ~ - - 20 ~ ~ 10.. :. ~. T.--~ -~ -~-~ -:~- ~ -7. -~ - T- - ~- 7 - ~ -~?.~. ~- ~ -T -~ -~ -~- ~:-~ -~ -~ -~- T. --- -: :.>.. 10 ~ ~ 0. ~ : : : ~.. : : :.. : : : : ~.. : ::. - 0 ~ (a;\_ TYPICAL DMIIIA IECTION THRU DIKE ~ r ~~~\ [ ~~~. ; : : r;~. :~ --L : :~l\_. :_.: _:_ :.c_.:j_;_j c_:_i_::)\ : ~1o r /4 : [ : -: j : [ : : [ : : [ \ ~ - "' 0 '- ' ' ' ' TYPICAL DMIIIA SECTION THRU DIKE NOTES: GRAPHIC SCALE 400' 0 400' 1. ElEVATIONS ARE IN FEET AND lepfthsand REFER TO THE NAVD88 DAl\JM "A" I I AND ARE ABOVE REFERENCE DATUM UNLESS PRECEDED BY A( } SIGN. THIS VERTICAL DATUM IS DIFFERENT TliAN THE CHANNEL HYDRO SURVEY. 40' 0 40' REFER TO SPECIFIC SURVEY NOlES FOR DAl\JM REFERENCES. "B" I I Dlnll1: DAlE APPROVED REVISION 4104114 Dwn by; JWL MARINE CORPS SUPPORT FACILITY BLOUNT ISLAND L.R.P. NOT FOR CONSTRUCTION DUVAL COUNTY, FLORIDA MAINTENANCE DREDGING PRD.IECT US""""Corpe DEPARTMENT OF THE ARMY LRP 08 ofenglnhrs.iacuoiiyillii DI8TIII~, CO-OF iniiin- Datad: TYPICAL DMMA CROSS SECTIONS..IACiaGWILLE, R.O..DA APRIL2014 OF 8

DES1Q1~LAUTHENTICATION PROJECT: US Marine Corps Support Facility- Biount Island Command {USMC~BI) Maitenance Dredging Project ATTACHED PLAN SHEETS: 8 Plates The attached plan was prepared by the Jacksonville District, U.S. Army Corps of Engineers (USACE). The initials or signatures and registrations designations ofthe signatory below or that appear on these project documents are within the scope of employment as required by USACE Engineering Regulation 1110-1-8152, PROFESSIONAL REGISTRATION, 8 Aug 1995, and are not made in the individual capacity ofthe signatories. US ACE employee signatures are provided in support of the "Interagency Coordination Agreement for Civil Works Projects", signed 28 Feb 2006 by the Florida Department of Environmental Protection, the USACE Jacksonville District, and USACE Mobile District. These plans are for permitting purposes only, and are not for construction. Dudley P;E. Chief, Design Branch (CHEN-D) Engineering Division 8 plates dated April 2014.