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HomeMy WebLinkAboutResolution 310-1984 ~ RE$~ClltI~N N~. 310_1984 mHEREA$, the B~ARD ~F t~llNtg t~rnmI$$I~NER$ ~F m~NR~E t~llNtg, FC~RIDA, has receiveo an application from R~BERt t. KRIEtER IDHEREA$, in compliance with $tate $tatute, it is necessary as part of the permitting proceDure to reaD the following Biological Assessment into the RecorD as follows: The applicant would like to provide improved boat mooring facilities for a planned multi-family residential development. The goal will be accomplished by building a boat basin along the side of an existing primarily residential canal. The proposed basin witl measure 170 ft. long pa3allel to the canal and 50 ft. wide (8500 ft). Approximately 2700 yd will be excavated in constructing the proposed project. It is estimated that 90 percent of the material will be removed from areas land- ward of mean high water (MHW). Two of the sides of the boat basin will border the land and two sides will border canals. The landward sides of the boat basin will be box cut into bedrock. A five foot wide concrete cap will be built on the shoreline of the long axis of the boat basin. The short axis of the basin will be riprapped. A system of finger piers, including one forty-five foot by three foot, and five twenty foot by three foot piers along with twenty mooring piles, will divide up the basin area into ten boat slips. The slips will measure seventeen by fifty feet. Turbidity curtains will be utilized to help maintain water quality while the project is under construction. The excavation work will be accomplished using draglines and backhoes. The spoil will be spread with a bulldozer on uplands immediately adjacent to the proposed basin. Reinforced concrete will be employed for building the docks. A barge-mounted augar will be used for placing the dock and mooring piles. There are numerous contradictioffiwithin the description and plans supplied by the applicant for this project. As a result, the above description of the project represents a best guess as to what is actually being proposed. The project site is located in the Rock Harbor area of Key Largo in the Key Largo Ocean Shores subdivision. The subdivision is located on a small peninsula, which projects off the eastern side of Key Largo, known as Point Charles. Rock Harbor, which is a shallow tidal lagoon, is formed by Point Charles. Key Largo Ocean Shores subdivision is located near the base (north end) of the Point Charles peninsula. A network composed of three pairs of parallel canals provide waterfront access to a majority of the lots within Key Largo Ocean Shores subdivision. The canals cut completely across the Point Charles peninsula, such that their western ends connect to Rock Harbor and their eastern ends connect to the Atlantic Ocean. The natural waterbodies at both ends of the canal system, are within the John Pennekamp Coral Reef State Park and designated as Class III, Outstanding Florida Waters (Chapter 17-3.041, 17-3.081 and 17-3.161, Florida Administrative Code) Development within the subdivision consists of a mixture of commercial, single family residential and multi-family residential. Of these, single family residential is by far the dominant. Within the last year, significant changes have been wrought in the Key Largo Ocean Shores subdivision. Specifically, the southernmost of the three pairs of canals within the subdivision has been excavated and the land adjacent to it filled with the spoil. The canal dredging has been conducted pursuant to permit number 44-34296 issued on April 23, 1982, to Mr. Robert Krieter (copy attached). At the time of the inspection that was made for the current application, the canal has been completely excavated Resolution Robert C. Krieter Page Two and all the lands surrounding it had been filled. The culvert, which the permit required be installed in the northermost pair of canals, was still under construction, a small part of an area which the permit required, be scraped down to a wetland elevation, required further excavation and the status of the riprap treatment along the toe of slope of the canal sides, was unclear. The applicant indicated plans to complete the required work in the near future and the project is generally considered to be proceeding satisfactorily by this inspector. The proposed boat basin will be located near the eastern end of the central pair of canals where the newly excavated canal joins it. Specifically, the basin will be located on the southeastern corner of the canal inter- section. The proposed basin area is bordered to the north by the old central canal, to the west by the leg of the newly excavated southern canal which ties into the central canal, to the east by a thin strip of littoral zone wetlands which form the Atlantic Ocean shoreline of the project area and to the south by uplands. Access to the site by land is across the uplands to the south and by boat is through the central canal and associated access channel to the north. As part of the recent canal creation project, the area of the proposed boat basin along with the lands to the south, were filled within the last year. The fill material is crushed Key Largo Limestone. Prior to being filled, much of this area had been emergent (mangrove) and transition zone wetlands. At present, as a result of the filling, the area is upland in character and virtually devoid of any significant vegetation. As mentioned earlier, a thin strip of emergent wetlands, typified by the presence of red mangrove (Rhizophora mangle), white mangrove (Laguncularia racemosa) and black mangrove (Avicennia germinans) trees to moderate size lines the Atlantic shoreline. The mangrove trees are growing out of an old line of riprap which was apparently placed in the area over twenty years ago. This strip of wetlands represents the remaining section of the formerly more extensive shoreline wetlands. The eastern end of the proposed boat basin will come up to, but not into, the strip of shoreline mangroves. The two-ended flow-through design of the canal system at the project site takes advantage of a significant tidal head difference between the Atlantic Ocean end and the Rock Harbor end of the canal. This head difference generates relatively strong currents within the canals, particularly the central canal. Water quality data, which was obtained for the canal system prior to the southernmost canal being excavated, indicates that the strong flushing currents do benefit the canal system, however, there were numerous incidents of the canals not meeting Class III water quality standards. (See the water quality studies prepared by Post, Buckley, Schuh and Jernigan, Inc., dated May 1981, and by Rio Palinque Research Corp., received October 1980 in file number 44-34296). Unfortunately, water quality data on the canal system since the new canal was excavated, is not available to this inspector. It is noteworthy that the available data indicates a general tendency for the canals to display better water quality toward their eastern (Atlantic Ocean) ends. A station which was located immediately adjacent to the proposed basin, displayed water quality consistently with- in the requirements of Class III standards. Temporary construction related activities are likely to result in elevated levels of dissolved organic compounds, particulate organic compounds and turbidity. Conventional turbidity control techniques (i.e. silt screens) often do not work well in applications with current velocities as high as those found within the canal. In order to be effective, particularly heavy duty turbidity curtains will have to be employed. As a result of the present condition of the proposed boat basin area, there will be very little damage done to wetland biota by excavating it. The remaining fringe of mangrove wetlands along the Atlantic shoreline of the site adjacent to the eastern end of the proposed boat basin are, however, likely to be heavily impacted by the proposed work. Resolution Robert C. Krieter Page Three Use of the proposed marina will result in increased discharges of hydro- carbons, toxic metals, detergents, organic debris and miscellaneous debris into the waters at the project site. The magnitude of these discharges is not expected to be large enough to cause a water quality problem at the site, particularly in light of the strong flushing currents found there. BE It RE$~C~ED BY tHE B~ARD ~F t~UNtY t~mmI$$I~NER$ ~F m~NR~E t~UNtY, FC~RIDA, that the ahove Biological Assessment has heen reaD into the recorD anD Du1M consiDereD pursuant to FloriDa $tatute 253.124 hM the BoarD of tountM tommissioners of mnnroe tountM, FloriDa, this I qfh DaM of Qc-6o be.. ,19 9:J/ at a regu1ar1M scheDuleD meeting. ~ B~ARD ~. F t~UNt Y t~mmI$$I~NER$ ~F m~N,R~E ~UNtY~FC~RI_ ~ ':, . ------ -<? ,.~ 1 tnaMor - ($EAC) Attest: DANNY L. KOLHAGE, Clerk /7 / /li 01:: /7 & // "--~...// ..... /',' ~ ~IOC<- . '." , t1erk of t. cuit tourt '1Ji~\~cl~~, d, 'r\ ~W\c... H ~oc)~ I~Cuclen t. Pro M '?' tountM AttorneM OK~Y~~; ~R~~'~04~E (305) 294-4641 BOARD OF COUNTY COMMISSIONERS Wilhelmina Harvey, District 1 Ed Swift, District 2 MA YOR Jerry Hernandez, District 3 Alison Fahrer, District 4 Mayor Pro tem Ken Sorensen, District 5 Lucien C. Proby, County Attorney 310 Fleming Street Key West, Florida 33040 I, the undersigned, do hereby attest that all data and information is complete in the package of the applicant as follows: 1. County Biologist Report ~ 2. Resolution (ROBERT C. KRIETER) ~ 3. Permit / 4. Application for Permit (Boat Basin) ~ 5. Site Plan V 6. Location Map ~ ~ BY~. Ooa: 7. DER Asses~ment Date 9-/;;2-6r Tfi)~~~~~!~]' t', I f:( ':' \~) , L ~ . SEP 17 198[1 COUNTY ATTY. M E M 0 RAN DUM DATE: September 10, 1984 FROM: Jeffrey Doyle, Ph.D., Director Robert Smith, Biologist (""h TO: SUBJECT: Krieter, Boat Basin Legal: Lots 24 and 25, Block 13, Key Largo Ocean Shores Subdivision, Key Largo Zoning: RU-3 I. INTRODUCTION: This application to excavate a boat basin, which involves excavating greater than 100 cubic yards within a body of water, should be reviewed by the Board of County Commissioners pursuant to Section 19-111 (b) (4) of the Monroe CountY__G9_c;le_. II. SITE AND PROJECT DESCRIPTION: The applicant proposes to construct a boat basin for community usage. This project will involve the excavation of 3,537 cubic yards of material of which 3,300 cubic yards will be landward of the Mean High Waterline (M.H.W.L.) and 237 cubic yards will be waterward of the M.H.W.L. Projects involving excavations for the creation of marinas, boat mooring facilities, and boat basins which involve greater than 100 cubic yards of material are considered as an extension of navigable waters and as such, pursuant to Section 19-111(b) (4) of the Monroe County Code, should be reviewed by the Board of County Commissioners. The project will involve the construction of 170 linear feet of sea.wall (vertical concrete revetment) and 50 feet of rip rap sea wall. In addition to this, a 5 foot wide concrete cap will be placed along the basin perimeter. Boat mooring will be accomplished by the placement of 4 - 20 foot long by 3 foot wide piers in addition to 1 - 45 foot long by 3 foot wide pier. Additionally 14 mooring pilings will be placed within the basin. Effectively this will create 10 boat slips. (See enclosed plans.) The stated purpose of this project is to provide docking facilities for a proposed multifamily residential development. -1- A site visit was performed by Annette Nielsen, former County Biologist, on July 6, 1983, and by myself on September 7, 1984, and resulted in the following: The area in question is bordered on the south by the Atlantic Ocean, on the north and east by subdivisional canals, and on the west by a newly scarified subdivision. The lots do not fall within the Shore Line Protection Zone (SPZ) as defined by Section 4-18 of the Monroe County Code. The area bordering the Atlantic Ocean is in an altered state in such that a previously placed rip rap boulder revetment had been erected at some time in the past. A survey of vegetation present on site showed depauperate con- ditions with the only plants being sea purslane (Sesuvium sp.) and red mangrove (Rhizophora mangle) of a less than 2 foot condition. The overwhelming majority of the two lots have no vegetation present. The border of the property does exhibit some fringing mangroves, red and white (Rhizophora mangle and Laguncularia racemosa, respectively). The bordering canals exhibit a very great tidal flux. This canal system has a flushing current unparalleled in the Keys. No fueling facilities or live-aboards will be allowed in the marina. Sewage relief will be provided by a sanitary pumpout station. This will basically be a residential facility,not a commercial facility. III. EVALUATION: The project as proposed follows the guidelines for marina con- struction as outlined in the Monroe County Coastal Zone Protection and Conservation element as delineated on pages 38 and 39. In particular this location does maintain the maximum physical existent advantages with: no destruction of submerged grasses and no channel dredging necessary, flushing adequate, no live-aboards, and an adequate spoil area. The spoil is to be located to the west of the site in a previously scarified section of a new subdivision. The anticipated impacts will be an increase in turbidity during construction which can be rectified by the placement of high- velocity turbidity curtains. Some organic debris and petro- chemicals will be released over the long term into the ocean. It will be determined by the Florida Department of Environmental Regulation (F.D.E.R.) as to the acceptable level of chemicals to flux from the marine. IV. RECOMMENDATION: The biologist recommends approval for the project. -2- Conditions: (1) Employ high-velocity turbidity curtains during construction (2) No live-aboards to be allowed (3) A sewage pumpout station to be constructed (4) A berm or "lip" to be constructed around the basin to prevent runoff into the facility (5) Rip rap to be placed at the toe of the vertical concrete seawall. v. OTHER: The applicant has already secured permits from the Florida Department of Environmental Regulation (F.D.E.R.) and the u.s. Army Corps of Engineers (A.C.O.E.) (See enclosures.) Enclosures: (l) Plans (2) F.D.E.R. Bio Report (3) F.D.E.R. Permit (4) A.C.O.E. Permit _ -3- ~ PERMIT MONROE COUNTY ~ ,. PLANNING, BUILDING & ZONING DEPARTMENT PERMIT FOR EXCAVATION, THE DEPOSIT OF FILL, OR STRUCTURAL ACTIVITIES IN THE WATERS OR WETLANDS OF MONROE COUNTY PERMIT NO. 1) Property owners name & mailing address Robert C. Krieter Post Office Box 1886 Key Largo, Florida 33037 2) Date 6-9-83 3) Phone number FOR DEPARTMENT USE ONLY Resolution No. 451-3410 Date: 4) Contractor or agent's name, mailing address & phone number Robert, Eagan & Routa Law Firm .217 S. Adam Street Tallahassee, Florida 32301 5) Legal description of property: Section 32 & 33 Key Largo Subdivision Key Largo Ocean Shores Township 61S Lot 24 & 25 Block 13 Range 39E Street, road or mile marker S. Ocean Shore Drive Volume of material: dredged/excavated filled/deposited 237 c.y. waterward ofM.H.W. 3300 c.y. landward of M.H.W. o c.y. waterward of M.H.W. 3f137 c.y. landward ofM.H.W. ZONING: RU-3 PURPOSE: Cost of Permit Estimated cost of Construction Biologist Comments, Restrictions or Special Conditions if any: APPROV AL 1. Employ high-velocity turbidity curtains during construction 2. No live-aboards to be allowed 3. A sewage pumpout station to be constructed 4. A berm or "lip" to be constructed around the basin to prevent runoff into the facility 5. Riprap to be placed at the toe of the vertical concrete seawall. Permits from the D.E.R. and the A.C.O.E. have already been issued. Dr. Jeffrey M. Doyle, Director Planning & Zoning Department Robert C. Krieter P. O. Box 1886 Key Largo, Florida 33037 ...... .~- I ~, " . . , J~=:~83 \ .~ 305/451-3410 " ; ,;,-1 (Ir (lr ;l~~cnt' S n:U:1C, JIlall i :t::: ;jlldrl':O~', 1'11":,' Roberts, Eagan & Routa Law Firm 2 L7 S. Adam Street Tallahassee, Florida 32301 l-("~~! ~ ~ I ~;it 1 n;1 ~l1r;jhl':' e RECEIVED JUN 2 7 1983 '_'\';11 dec:crirtion of property: ~"ti()TI. 32 & 33 T'o-IS---- R3"9E--- KEY LARGO OCEAN SHORES, AMENDED & EXT. Fe:_, K L ~\Ihd j vi s ion, __~___ a.rgQ PLAT, PB 4- PG. \, '\.:n~t, I r' 1 [\ 1 , 24 & 25 1'] (){' 1 _.l3 ~- 1 . I~ ' ~ i ~ : 2" t ] ('(' t l'r);I' ( ; "I) I. . i: : "1. s., -D..cean......ShoL.p Or ive .__Bu--r'iLI '7, 0- - ~ -- ----- !'c"Cl )'. ~ 1.]:(. proposed activity, t (, h. (":(;1\':11 ed or c.i~cl,arged, methods of const1"llctiulJ i, :L'l(111111 (If JII,'Jt('rj;J] Descrihe Tmrpc5;c (, intcnr1{'rl use of proj cct. (in cuhic \":1)' SEE ATTACHED SHEET. drcc.~e~/exc~vated fj ~ J c(l/(ll']losj tc<1 (" f ~. ~ . t : . \" . 3537 c.\'. 1 :In(i~m::c1 ' 0-[ }~Y.1':. .~~:(' l'; 217 Co\" \,':11 Cl'\\';] n1 of q Y , ~', ---33..u.0- c . \. . J ~1ch'::lnl of :'. )1.',", -O-c,\'. \,':11 en::irJ : t l' J.; 1 \;!:qC'~ ~,~~(-lrf'~s f: :Jf cede of ~f;jC'i;1in.p 'j'lr(1~~,eyt:: C'\'.:ler~, \\+'(~~[' 111~C~l'1.1y ;If.fTC';i:'S \..;(1ter ,..r8'''. Applicant: Mr. Robert C. Krieter ] l' llehl'r permits issucd and/or ;ll'r1ic\i for. iJlcl\lClt, ;T':11i~:;m:'~ n:!fll', Fe'l tri~, site: DER & COE i: .1 1:' ,II \(>{, 1:::s h'en su1'TIlittC(1 for this pro_iect (or Of'e 5jmiJ:lr) in tl'c past, (,'.:']:,.:, n:;:50:1 for nCh' application 8J1cJ r,ive arplic:mt's name if djfferent frolll curren1 . ',r l" . .,.,... N/A . t,:cY"31 :mo State agenCJCS t)~at 11iJV[' reCC1\'C(: ;-:j!!,jlCal1CCS JUT lrl~ proJect. DER & COE 11;i5 completed applicCltir. fon:, hij] -i'(' ;lccex;lp;UlICr' t'\' t"c l'\.}}O\.:ing, or it \",ill ~:CT be rrocc:s~l'd. ';'.." (~, 5CtS of dra\\'ings, on 812 X II paper, s11Oh'ing JOClt1('!1, Tllot plan, to[' \'10\'; ;U1(1 l',':'~ sectim of propos:.!l, drawn to 5C8JC. ',,:,1 j,'::: inll )lr0.~l'55jnp fce ;15 follows: ";>'. ('" fer (;'rc;tge. fiJl, dccl;s IT any structures affr0l11in!; natural \,':.11er halics. -:: (I ~ (': \T:': ie!l <(,;l\.,';111~ or:m:m-m;](1c' l'()lie:, (If "':11('1'. ,- '\ '('I ;111'.' c("1:1\'jn:1110Tl of thc clhc"l\'c ~ct1\"i1ic~ neT "'-itC'. ~:c.~-r't-~\: ~:l~:C f~~ :~ T'C'~1"t :c ;1~l~}"GT~:C' t1:C' a~:~.....i~ j,:,:~ ~~C's~-J-il"Ctl 1 c-rC:Jn. ] ; :!;- :~:;~.i: :~!~ \\'.1:1- 11-.( il~:(11-';::! 1(IT: CU:--.~:.ij::c'-: i11 ..} i..- ;:, .'; 11..:11 ior., <:JIld to t11C t--{>~. " :L'i il;' ~\Ic], iJ:fc]l'1:11 ion i~~ 11"11(', (1,"")':(1 I :ICC;lj-;:i (. flIrt' ('I' : crt if'.' ,]- 'r':, ::.c ;iiJ11:O;'11>' ,(, lli1c:crt;!tc 11,(' pr(Jro:~C',} ;lr:i\'1:ic-. :^11 I]C1\'l: ]cn5- uf Ja\-:::. and .'(", :'n:i:1". tJ.;:, 1\']10 uf h'(lr], h'i 11 hL, l(1f1I,1i'", 1,:i11 .:'''Cl)'0r <;1 \'C: ii('~: l:crcin l'r n\':. . :::' (': ;, jl!'Jrit <1c'<." 11:': l'r('~;lvr\(' t(1 \',1\'(' :1lItl1(1nlY 1(, \"i(Il:!1C' (Il' l:l!\C-('l t1,(' rrm'1C,icl!1C: ( :':1'.::.', :"Li1c' or f(":1(';-:I; 1:1... n:~~lll:j,in:: con~'1rL:< lJon C'1' ItrfCllJ1':IT,/,t-l' ('~ c()n~,tn1Ct](1!l cf 11 j' (,~ f :iC i 1 i 1 :: . X - /~: /r"l ./<rt-- - {, __ z (.:. {..;- :; 7J ~ln:l~---:!""'l--4-t'Ctnt /;II.;('nt T':l t (" ~',.:::;-t:~~C'n, (ist' ('n1\' - --_._-----~ 11, I~ .3903 I --- , ------ ,.._------,~ ~tl(' ~. rC'LC'lr: r 7~-\-r~rn\" ('<1 lw .~:; c. ' t, I '11- ,-:.c n,_ :1:']",1 i(;1 t :' J .~. -~ 1-;~'-!-1 -(~~r .,:( :-~ \. '. ~. ~ECEIVEO JUN 2 7 1933 (f. - R r 09] (\ 0 I I ~1/ l> 1J I ~ rn I '0. r I G r .P- I ~ l- f (11 (f1 {II' '^ I O. r 0 (l . I t i tJ ~ I # I r I .f:::.k I 1 Of:) VI . ~~~ 0 I Ib~ ~ I 'V "t'r I I I ~( , I tho I ( I ~~ I I I I 1 I I J ( I I I I I I I I I I (/I - 1 I -1 I i i "'111 I ~ :~~ II I 0\1 r) o r m 11) {7 r. 0, 1m 1- l-t I - ' 8 ' -! I I ! t , '/ \II..... 0 I \' ~_Il.o-K~ . SKII-I04 Application: RObert_ K rie.terll Sheet 2 of 3 Date: 9/oJune 1983 .. .0 . .._....._._ __, ...-.....t._. "_--..._~..__. _ ~.- ;--.- I I. r. ! II ~t;L! . c;. "1\1.. K. (='. c, ~c.lI::. r \." i! : -::l . t 0 /'V~ RECEIVe:O JUN 2 7 1981 A1 fU~~I~ ! I ,,,' ..:UQ.o 1 ~\ ~'"''TT \ "2." 'T' r-' . C.C.A ~\L~ \ ,:>' -r .0 --:J I \011<.10" r.,:>. ~\LE" M~L 'rO.O MUW +\.'2' K L'IJ.::-r;- 0- - -~.6' a:x..\~ LIME~o<::..~ I , ~'E~ lD~TA \\...~ \'-\0' ~\ N G. E-R: ~ LOCA\\o~ 5C.6\....t:: -YA""'-'C>s. 1--1 , I ItlOO ~ i~ o ~ ~ i I I 13~ I Ft-r 1 . ~ i 'I \ F~ot-1 N.O. '0, <'~b.~\ \.\0. \\4Co,,? ,f- Q~' \4; r -'~_ ~-r--~' r \~'-J. \4 \0..' <:::: 4.... \..14. l . . .0 o . 2. .. . 0 . Co "" 00 ~ \ ....H:; ~\ l.a- -:,'1(, "Zo' f'IE~ ~... '"""'J ~jL. ~ o .. lAW _ ./ i .(), ~ I 11\ in' I - S<'~T, . ~/ ',~f~~-~ 't!:.\~ ~~~ I !~,~ ~Li Go..k GA, P t.. - ~ '- - ~4-<:\. i , 1 r, . e, Il ~ e . .~ -,""",,- .. .Q ~~I!!, I - l----t 40 '"0 ~-4. .. 4 't: I---t o I 'to t 80 ~ < \. eA ~, ~ ~ LA... \-.\ ,\\" 50' Purpose: To Provide OWners DATUM: MSL Adjacent:Property Owners: Hobert Krieter, Applicant p. O. Box 1886 ~ey Largo, Florida 33037 Boat Mooring Facility for On-Site Property In: Manmade Canal At: .Key Largo Ocean Shores County of Monroe, State Florid Application by: Robert Krleter Sheet.J.. of 3 Date: 9 June 1983 . / SKll-l04 I V Rt-:CEIVEO ~UN : 7 1983 SK 11-104 '" 'Y ~'. ."\) Co Application: Robert Krieter Sheet 3 of 3 Date: 9 June 1983 ,I c' STATE OF FLORIDA i ""-, DEPARTMENT OF ENVIRONMENTAL REGULATION TWIN TOWERS OFFICE BUILDING 2liOO tlLAIR STONE ROAD TALLAHASSEE, FLORIDA 32301'8241 BOB GRAHAM GOVERNOR VICTORIA J. TSCHINKEL SECRETARY PERMIT'fEE: Hobert Kr-ieter c/o Roberts, Egan and Routa, P.A. 217 South Adams Street Tallahassee, Florida 32301 Permit Number: 440715699 Date of Issue: 06/01/84 ~ ~~.: . ~~] 05/31/87 ?film!",- " " ~;~ ~ , d' ;"'':"" i ~ ,.. "Q~.",.. ..:..!","~!>n~Jf~t ".l' This permit is issued under the prOVISIons of Chapters 253 and 403, Florida Statutes, Public Law 92-500, and Florida Administrative Code Rules 17-3 and 17-4. The above named permittee is hereby authorized to perform the work or operate the facility shown on the application and approved drawing(s), plans, and other documents attached hereto or on file with the department and made a part hereof and specifically described as follows: PROJECT DESCRIPTION: To excavate a marina basin 170 ft. long by 50 ft. wide from an upland area along the south side of an existing canal system by removing 3,537 cu. yds. of material to an elevation of -6.0 ft. MSL; to construct 170 linear ft. of concrete vertical seawall with a 5 ft. wide concrete cap and 50 ft. of riprap seawall; to construct 4 piers 20 ft. long by 3 ft. wide and 1 pier 45 ft. long by 3 ft. wide and to place mooring pilings to provide 10 boat slips. LOCATION: Key Largo, Atlantic Ocean, Monroe County, Section 32 and 33, Township 61 South, Range 39 East, adjacent to John pennekamp Coral Reef State Park, not in an aquatic preserve, Class III waters. Page 1 of 8. Protecting Florida and Your Quality of Life Appllcatlon,N.o, 84C-2522 KRIETER, ROBERT C. . Name 0' AppllCllnt Effectl.e Dat. AUGllST 16. 1984 uplratlon Dat. (II ;,pplieab'-) AUGUST 16, 1989 DEPARTMENTOFTHEARMY PERMIT Referring to written request dated June 21, 1983 'or a permit to: I Xl Pnform work in or affecting navigable waters of the United States. upon the recommendation of the Chief of Engineers. purlluant to Section 10 of the Riven and Harbors Act of March 3. 1899 (33 U.S.C. 4(3); I Xl l>illcharge dredged or fill material into waters of the United States upon the issuance of a permit from the Secretary of the Army actinjt through the Chief of Engineers pursuant to Section 404 of the Clean Water Act (33 U.s.C. 1344); ( ) Transport dredged material for the purpo.e of dumping it Into ocean wlltera upon the iBluance of a permit from the S..cretary of the Army acting through the Chief of Engin..r. punuant to Section 103 of the Mllrine Protection, Re.earch and Sanctuariel Act of 1972 186Stot. J052; P.L. 92,632); Mr. Robert C. Krieter Post Office Box 1886 Key largo, Florida 33037 j" hl'r.by authorized by the Secretary of the Army: 1.0 construct a marina basin by excavation of 3,537 cubic yards of material; construction of a seawall; placement of riprap; construction of piers; and installation of mooring pilings In at a manmade canal with access to the Atlantic Ocean Sections 32 and 33, Township 61 South, Range 39 East, Key Largo, Monroe County. Fl or; da in accordance with the plan. and drawings attached hereto which are incorporated in and made a part of thi. permit (0" draw- inN.<. Nil'l' fi/.. n"nab~rorot^~rd~fi"ir~ id~ntifjcotion mor".) two sheets entitled "84C-2522" dated June 1, 1984 lIubject to the followin, conditioll.: I. General CondItIon.: a. That all activitl.a Identified and authorized herein .bell be con.iatent wIth the term. and conditlona of thl. permit; and that any activitiea Dot apeclflcally ideDtifled and authorized herein .han conatltute a vloletloD of the terms and condition. of thi" permit which ma, relult in the modification, auapen.lon or revocation of thi. permit. In whole or in part, aa .et forth more SP.l"ifiully in Goneral Condltiona; or II hereto, and In the In.tltutlon 01 auch Ilgal proceediD,a II the United Statee Govern- ment may consider appropriate, whether or not thl. permIt b.. been previoualy modified, eu.pended or revoked ID whole or in part. ENG FORM 1721, Sep 82 EDITION OF 1 JUL' 77 IS OBSOLETE '''" 11411. "IIOSI 1 1- .!, .- . · 'lC"'-O _ ...,..J _ ~_ .J ..., ':".i:~ .........l.dl:..... l' l.,...: ':"J.' V i ~.~uUNEN'I'AL REGULA T ION PEill1IT APPLICATION APPRAISAL , . LIS: -... .. . ;:" . U..:I"H Ofi.~:; 01 440715699 F 1. e No.: County: Monroe Date: 3-28-84 Applicant Name: Robert C. Krieter Address: PG Box 1886, Key Largo, FL 33037 Agent (if applicable): Address: Roberts, Egan & RoutaLaw Firm 217 S. Adam St., Tallahassee, FL 32301 Location of project: Section(s) 33 Township 61S Range 39E Section(s) Township Range Local Reference: Key Largo Water Body: Atlantic Ocean Water Classification of Project Area: III Adjacent Waters: III Aquatic Pre~erve:None Outstanding Florida Waters: John Pennekamp Coral Reef State Park On site inspection by: Date of Inspection: David Bishof 3-14-84 Original Application: Yes No X Revised Application: YesX No . Date: 2-16-84 Date of 2nd Insp. Biological and Water Quality Assessment A. Description of proposed project and construction techniques. Quantify area of project which extends into waters of the state (including the submerged lands of those waters and the transi- tional zone of the submerged land) as defined in Section 17-4.02 and Section 17-4.28, Florida Administrative Code. B. Biophysical features of general area. Include comments concerning extent of development of adjoining properties as well as relevant historical facts about the area. C. Biophysical features of specific project site and spoil site if applicable. Include identification of bottom types and any relevant historical facts about the area of the project. - D. Potential impact of project on biological resources and water quality. Address long-term impact as well as immediate impact for all aspects of the project. E. Suggestions, where appropriate, for modifications that may reduce or minimize the potential impact of project. p E Rf.l 16 -10 (Re v . 6/7 9 ) .. KRIETER, ROBERT C. #440715699 Monroe County - Key Largo Page Two A. The applicant would like to provide improved boat mooring f~cilities for a planned multi-family residential development. The goal will be accomplished by building a boat basin along the side of an existing primarily resi- dential canal. The proposed basin will measure 170 ft. long parallel to the canal and 50 ft. wide (8500 ft2). Approximately 2700 yd3 will be excavated in constructing the proposed project. It is estimated that 90 percent of the material will be removed from areas landward of mean high water (MHW). Two of the sides of the boat basin wil~ border the land and two sides will border canals. The landward sides of the boat basin will be box cut into bedrock. A five foot wide concrete cap will be built on the shoreline of the long axis of the boat basin. The short axis of the basin will be riprapped. A system of finger piers, including one forty-five foot by th~ee foot, and five twenty foot by three foot piers along w~th twenty mooring piles, will divide up the basin area into ten boat slips. The slips will measure seventeen by fifty feet. Turbidity curtains will be utilized to help maintain water quality while the project is under construction. The exca- vation work will be accomplished using draglines and backhoes. The spoil will be spread with a bulldozer on uplands immediately adjacent to the proposed basin. Reinforced co~crete will be employed for building the docks. A barge- mounted augar will be used for placing the dock and mooring piles. There are numerous contraditions within the description and plans supplied by the applicant for this project. As a result, the above description of the project represents a best guess as to what is actually being proposed. B. The project site is located. in the Rock Harbor area of Key Largo in the Key Largo Ocean Shores subdivision. The subdivision is located on a small peninsula, which projects off the eastern side of Key Largo, known as Point Charles. Rock Harbor, which is a shallow tidal lagoon, is formed by Point Charles. Key Largo Ocean Shores subdivision is located near the base (north end) of the Point Charles peninsula. A network composed of three pairs of parallel canals provide waterfront access to a majority of the lots within Key Largo Ocean Shores subdivision. The canals cut completely across KRIETER, ROBERT C. #440715699 Monroe County - Key Largo Page Three the Point Charles peninsula, such that their western ends connect to Rock Harbor and their eastern ends connect to the Atlantic Ocean. The natural waterbodies at both ends of the canal system, are within the .John Pennekamp Coral Reef State Park and designated as Class III, Outstanding Florida Waters (Chapters 17-3.041, 17-3.081 and 17-3.161, Florida Administrative Code) . Development within the subdivision consists of a mixture of commercial, single family residential and multi-family residential. Of these, single family residential is by far the dominant. Within the last year, significant changes have been wrought in the Key Largo Ocean Shores subdivision. Specifically, the southernmost of the three pairs of canals within the subdivision has been excavated and the land adjacent to it filled with the spoil. The canal dredging has been conduc- te~ pursuant to permit number 44-34296, issued on April 23, 1982, to Mr. Robert Krieter (copy attached). At the time of the inspection that was made for the current application, the. canal had been completely excavated and all the lands surrounding it had been filled. The culvert, which the permit required be installed in the northernmost pair of canals, was still under construction, a small part of an area which the permit required, be scraped down to a wetland e~evation, required further excavation and the status of the riprap treatment along the toe of slope of the canal sides, was unclear. The applicant indicated plans to complete the required work in the near future and the project is generally considered to be proceeding satisfactorily by this inspector. C. The proposed boat basin will be located near the eastern end of the central pair of canals where the newly excavated canal joins it. Specifically, the basin will be located on the southeastern corner of the canal intersection. The proposed basin area is bordered to the north by the old central canal, to the west by the leg of the newly excavated southern canal which ties into the central canal, to the east by a thin strip of littoral zone wetlands which form the ^tlantic Ocean shore- line of the project area and to the south by uplands. Access to the site by land is across the uplands to the south and by boat is through the central canal and associated access channel to the north. ^s part of the recent canal creation project, the area of the proposed boat basin along with the lands to the south, were filled within the last year. The fill material is crushed ~ KRIETER, ROBERT C. #440715699 Monroe County - Key Largo Page Four Key Largo Limestone. Prior to being filled, much of this area had been emergent (mangrove) and transition zone wetlands. At present, as a result of the filling, the area is upland in character and virtually devoid of any signi- ficant vegetation. As mentioned earlier, a thin strip of emergent wetlands, typified by the presence of red mangrove (Rhizophora mangle) , white mangrove (Laguncularia racemosa) and black mangrove (Avicennia germinans) trees of moderate size lines the Atlantic shoreline. The mangrove trees are growing out of an old line of riprap which was apparently placed in the area over twenty years ago. This strip of wetlands repre- sents the remaining section of the formerly more extensive shoreline wetlands. The eastern end of the proposed boat basin will come up to, but not into, the strip of shoreline mangroves. The two-ended flow-through design of the canal system at the project site takes advantage of a significant tidal head difference between the Atlantic Ocean end and the Rock Harbor end of the canal. This head difference generates relatively strong currents within the canals, particularly the central canal. Water quality data, which was obtained for the canal system prior to the southernmost canal being excavated, indicates that the strong flushing currents do be~efit the canal system, however, there were numerous incidents of the canals not meeting Class III water quality standards. (See the water quality studies prepared by Post, Buckley, Schuh and Jernigan, Inc., dated May 1981, and by Rio palinque research Corp., received October 1980 in file number 44-34296). Unfortunately, water quality data on the canal system since the new canal was excavated, is not available to this inspector. It is noteworthy that the available data indicates a general tendency for the canals to display better water quality toward their eastern (Atlantic Ocean) ends. A station which was located immed- iately adjacent to the proposed basin, displayed water quality consistently within the requirements of Class III standards. D. Temporary construction related activities are likely to result in elevated levels of dissolved organic compounds, particulate organic compounds and turbidity. Conventional turbidity control techniques (i.e. silt screens) often do not work well in applications with current velocities as high as those found within the canal. In order to be effective, particularly heavy duty turbidity curtains will have to be employed. .. KRIETER, ROBERT C. #440715699 Monroe County - Key Largo Page Five As a result of the present condition of the proposed boat b~sin area, there will be very little damage done to wetland biota by excavating it. The remaining fringe of mangrove wetlands along the Atlantic shoreline of the site adjacent to the eastern end of the proposed boat basin are, however, likely to be heavily impacted by the proposed work. Use of the proposed marina will result in increased discharges of hydrocarbons, toxic metals, detergents, organic debris and miscellaneous debris- intO-the Waters at the project site. The maghitude o~ these-discharges is not expected to be large enough to cause a water quality problem at the site, particu- larly in the light of the strong flushing currents found there.