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Home My WebLink AboutAugust 12, 1999 St. Lucie County Local Planning Agency Special Meeting Roger Poitras Administration Annex Building- Room 101 August 12, 1999 7:00 P.M. AGENDA C. ALi.,_TO ORDER1 -A. Pledge of Allegiance B. Roll Call C. Announcements D. Disclosures ~ ITEM !l Consider Potable Water Sub-Element of the St. Lucie County Comprehensive Plan. Staff comments by Cyndi Shay. Action Recommended: Forward Recommendation to County Commission Exhibit #1. Staff Report AGENDA ITEM 2~ -' '- ' - '" :-- -- ---- : '~-'-'-- - : HENSIVE PicAdor Consider the Sanitary Sewer Sub-Element of the St. Lucie County Comprehensive Plan. Staff comments by Cyndi Shay. Action Recommended: Forward Recommendation to County Commission Exhibit #2: Staff Report OTHERJ~USINESS~ A. ADJOURN Other business at Commission Members' discretion. Next regular Planning and Zoning Commission/Local Planning Agency meeting will be held on August 19, 1999, in Room 101 of the St. Lucie County Administration Building. NOTICE: All proceedings before the Local Planning Agency of.St. Lucie County, Florida, are electronically recorded. If a persOn decides to appeal any decision made by the'Local Planning Agency with respect to any matter considered at such meeting or hearing, he will need a record of the proceedings, and that, for such purposes, he may need to insure that a verbatim record of the proceedings is made, which record includes the testimony and evidence upon which the appeal is based. Upon the request of any party to the proceedings, individuals testifying during a hearing will be sworn in. Any party to the proceeding will be granted an opportunity to cross examine any individual testifying during a heating upon request. 561/462-1586.Any questions about this agenda may be referred to the St. Lucie County Planning Division at COLOR CODE PLANNING & ZONING PACKrET CONTENTS CONDITIONAL USES- BLUE REZONiNGS - PINK PLAN AMENDMENTS . GREEN MOBILE HOMES - YELLOW ORDINANCE . WHITE . Master Agenda (Get order of Agenda from Planner) Copy of Previous MOnth,s Minutes staff Comments Memorandum (per petition) A) Copy of Transparency (location map first- per petition) B) Dotailod Agenda (per petition) C) List of Adjacent Property Owners (per petition) D) Legal Ad Affidavit EACH OF THE FOLLOWING RECEIVE A PACKET: EACH of the nine P & Z Members Planners (Hank and Cyndi) Linda Pendarvis Planning Manager (David Kelly) Board of County COmmissioners (5) Community Development Director (Julia Shewchuk) Assistant Community Development Director (Dennis Murphy) Assistant County Attorney (Jim Lancaster) County Administrator (Mr. Anderson) & Phil Freeland Conner Consultants (fax Agenda to Karen @ 465-9904) Property Acquisition Manager (Don Cole) Don CoOper, City Manager (City of Port St. Lucie) MaZella Smith (City of Fort Pierce) Press/Public Box Southern ,Real Estate Group Inc. (344-0166) (fax Agenda to Amanda @ 337-9774) Secretary Copy and mail staff comments to the Petitioner TOTAL OF 32 FULL PACKETS Mail agenda only'to: Terry Hess Treasure Coast Regional Planning Council 301 E. Ocean Boulevard, Suite 300 Stuart, FL 34994 Charlie Scholnover SUNTRUST BANK/TREASURE COAST 111 Orange Avenue Fort Pierce, Florida 34950 Dave Melnick 120 Estia Lane Port St. Lucie, FL 34983 Wynne Building Corporation Rev. 6/99 - h:\wp\wp\p&z\pz-docs\packet, pz HP Office Jet Personal Printer/Fax/CopieffScanner Last,Fa~ ..... ' ' Aug 11 8:42am Sero Result: OK - black' and white fax OK color- color fax Fax History Report for St. Lucie Couniy Florida 4621581 Aug 11 1999 8:42am . Iden,tificatio~ Dumtio~n 94659904 0:40 OK HP Office Jet Personal Printer/Fax/Copier/Scanner Last Fa~ Fax History Report for St. Lucie County Florida 4621581 Aug 11 1:999 8:43am Time Aug 11 8:43am Result: OK - black and white fax OK color - color fax T. T3~ ~enfificati, on Durafio~ P_ag~ ~ Sent 93379774 0:33 I OK ST. LUCIE COUNTY COMPREHENSIVE PLAN UPDATE POTABLE WATER SUB-ELEMENT Prepared by: St. Lucie County Board of County Commissioners St. Lucie County Department of Community Development POTABLE WATER SUB-ELEMENT TABLE OF'CONTENTS INTRODUCTION .............................................. ................ BACKGROUND ............................................................. Terms and Concepts ......................................................... Regulato~ Framework ........ ............................................... EXISTI,NG CONDITIONS ..... .......... . ......................................... ExiSting Planning Documents .......... ...................................... Regional Facilities ...................................... ..................... Package Treatment Plants ................................................... Water' Supply Wells ......................................................... Water Quality ................ ~. · · ............ ' .............................. NEEDS ASSESSMENT .......................... ............................. Areas Not in the Scope of This Plan ................................ ........... Unincorporated Cou:nty Areas not in Water Sew:ice Areas ................. , .......... Capacity Assessment ...................................................... Savannas Area Needs ..................................................... Sout Hutchinson island Needs · · · · ............................... Central County Area Needs .................................................. " General Performance of Existing Facilities ....................................... Potable Water .Plan for the Unincorporated .County .. ......................... · ·. · · Potable Water FaCility· ~ ReplaCement, Expansion and-New Facility Siting ..... GOALS, OBJECTIVES, AND ,POLICIES ............... ' .......................... BIBLIOGRAPHY LIST OF FIGURES 6- D - 1 Regional Service Areas ................................................ 6- D - 2 Water Treatment Pi:ant .Locations ......................................... LIST OF TABLES Table 6-D-1 Water Treatment Plants, Including Package Plants, and Their CapaCities 6 - D - 2 Potable Water Demand in St. Lucie County, 1985 ........................... August 6, 1999 Potable Water POTABLE WATER SUB-ELEMENT DATA & ANALYSIS INTRODUCTION The. POtable Water Sub-~Ele~me:nt provides ~a summary of existing potable' water ~supplies and treatment facilities in St. LUcie CoUnty, -The~ facilities include municipal regi°nal in addition individual residences. 'Th, speCii those needs. with goals, Objectives, and 'policies focusing .. on BACKGROUND TermS and concepts A potable water, supply system.~normally consists of a water supply soume, a treatment plant, and a distribution ~and storage network. Either surface water, stored in natural lakes or man-made reservoirs, groundwater, .or som'e combination of the two usually constitute the.supply soume. for a system. The selection of .a soume fOr any system .must consider the type and quality of soumes available and the :cost of developing the soume for use. Before.being .usedfor publicconsumption, all-water must be treated.. Tr reatment removes impurities from'the raw .water in order to improve .its quality for either public health or aesthetic masons, or both. The treatment process adds to the cost of supplying water, but it also eXpands the range of raw water .sources that can be utilized. After treatment, users in a .community by way of ~a network of lines, ca!led distribution mains, carry water to network rOf smaller lines which eventually supply individual.ostablishmonts. Both 'the distribution mains and distribution 'network should bo intemonnected 'reform floW loops to allow water to cimulate from various portions of the system to water 'is back into tanksam~ I systems al .. Water is delivered under 'pressure within the distribution, system in order to ensure adequate flow to meet demands. Demand 'fluctuates during each day, usually exhibiting peaks during'the morning and evening, corresponding tO periods of highest residential use. Localized demand peaks also. oCcur when the system.'is utilized for fire fighting purposes. In order to provide adequate quantities.and, r ' ~p ess m flow demands, storage tanks are linked with the at stmte ,.ns. During Iow demand-periods theSe tanks are~ filled as During the peak demand periOds, water fiews from the.tanks Ground level and elevated storage used. Elevated'tanks (water towem) are the mOst econOmicalI Many auxilia~..pumps Which operate only during peak demand periodS. August 6, 1999 6-D-1 Potable Water RegUlatory Framework The federal government has :establirsh ~use, inCluding operating standards and am provided 'in the Safe Ddnking ardS for the ~Law r :fo.r ~pUblic in this 17,550, Water Act are mandatory i.n Florida. South. Floqda Water'.Management District (SFWMD)riS responsible for to meet existing and future demands. Regulation of consumptive EXISTING CONDITIONS Existing Planning .Documents The two major urban areas ofthe County, Ft, Pieme and-Pe~ St. The Ci~ of Ft. Pierce completed a ~master Plan-for water and In ha consumers. ties. operates a water tmatment~faCility Fig now found on page 6,D-4, n. the Coun :y. With.the exCeption of municipally ~ Water ~and facilitie devel~ paCkag rea. of ~these~ It. Ft. Pierce Utilities Authority: The Ft. Pieme Utilities Authority (million gallon per day) potable water troatment plant. Raw water municipal wellfields .and-is processed for potable use at the Henry A. Gahn on 25th Street in Ft. Pieme. The water distribution system August 6, 1999 6-D-2 the, a 20 MGD from· several nt Plant located miles of Potable Water Fi gional FaCilities August 6, 1999 6-D-3 Potable Water The curm.nt method of disinfection with chlommmoniation req softening 'units to,achieve the 20 MGD design flow. down ~time, an effective maximum flow of 13~ MGD-is pmbabiy currently available raw ~water supply. north, west, and :south of the City limits.. Although the line on the South north of the ~Martin County line, all of the tap ' _ The Water sewice bounda~ is 'approximately south (and, on Jenkins Roads east. This is .an area system. lOcated .adj supplies Hutchinson :Island by ~the Martin County line); Boulevard to the noRh; andby ~the seWice rCO.Uld be' .provided 'g entire area, line with the orated and to ~amas one mile the and the water General Development Utilities.:: August 6, 1999 6-D-4 Potable Water St' ! Comprehensive 'Plan. St. the con N, and. will therefore not be addressed in this water from the shallow .aquifer, after being treating by membrane g with pla:ns 'to increase .capacity to match The. St. LUcie west plant discharges its ~mveme osmosis plant. io Reserve k d with MG the Ft, Pieme Utilities Authority and resells the water.to HUtchinson Island, Afew priYate package plants also, operate in :the ~ama. rabon. ThiS utility is intended to serve the area just west of Port St.: Lucie Reserve is a planned residential, commemial, and industrial 240 acres of. industrial and 55 acres of commemial, a permitted capacity of .2 y two-thirds of the August 6, 19,99 6-D-5 Potable Water Package Treatment Plants .. P County, current nu,mber~ of Island, CitY the August 6, 1999 6-D-6 Figure 6-D-2,~Package.Treatment Plants located within St. Lucie County August '6, 1999 6-D-7 Potable Water Water Supply'Wells,'~ ..~ The majority of the.water supply wells, in St. aquifer referred to as the surficial .aqUifer. inch, for the demand regional :.systems. AlSo Floridan aquifer. in this aqui Wells by any regional water or'wastewater facility.. Many of'these wells exist. ~on generally also have an on-sito septic tank and The larger wells ~normailY.:are used to supply water to package regional' faciliti, es are: as previoUsly described. The eastern portion of the. County with the high concentration areas .being barrier island, The Floridan aquifer'wells;am. Island, :.B~n .Mawr us:es a Floridan well and on Island, well. Currently, FPUA is looking:-into .blending water:from the Floridan aquifer surficial aquifer. Water Quality As previously, mentioned, most .of the water .s.upp!y systems in St. Lucie water'from shallow supPly-wells ~Which,extend into the ~sudicial aquifer. A few systems obtain raw water from deep .wells which extend into the F ~r size from 1 the. larger the ~erved The e the raw August 6, 1999 6-D-8 Potable Water Figure :D-1 - -Regional Services =Areas August 6, 1999 6-D-9 POtable Water The q bacterial Fe The 'total milligrams in irri recharge areas. aq portion of chlOri¢ osmosis NEEDS ASSESSMENT The County medium sized util of 1 and whiCh have b problems. ~d-to be Areas Notin the Scope~ of This Plan Ft. Pierce Ft. Pieme S Easy Street, west ~lorth King encor.mpasses a Port St. LuCier: Pierce Utilities county just east within aboUt°ne during the · Savannas Area: the northern bo northern an imaginary sewe and several ,cai :at Gatlin ~ation by August 6, 1999 6-D-16 Potable Water Unincorporated countY.Areas not in Water ~Sewice Arreas: The future land ~use plan for St, Lu reSidential and commercial areas. Of the land uses dense enough to require some form of regional or am~medium and high density ~residential, commemial, .induStrial, .and mixed use. ama north'of the St, se~ed ~by ~~ja~!~~p~t~!ij~i.~{North H Ft. ~Pieme Utilities, Port St..Lucre ~!~~( -exceptions of ~South Hutchinson Island, the savannas ama,.and that County International Airpo~ (Indrio Road). The westem ama~of unty is planned as agricultural, leaving the central north-south strip to be. considered, residential, ~which is intended to have a ~minimal ~vimnment, ~and 'would .be uneconomical to serve with a public water system.. Water sewice ~to that area is expected to be .provided by individual wells. capacity Assessment This assessment identifies facility'requimments.in the study areas by estimating .demand, assigning demand to the existing '(if .any) facilities, and quantifying facility deficiencies. Demand was estimated land' pop the St. hi of la level of service standard for each facility to the projected~ population and ama, in order.to, esti for the planning.period. Resident :ions were based on the Area Zone (TAZ) data provided by These TAZ data Were based upon the ic and Business Reseamh (BEBR) at the Univemity A range ~of per capita ~co the SFWMD and this is presented in Table 6-D-2 The land uses for r,_,,,,,,,o~ n,,,,,,.,,.,~,,,,,~ ,..;,;~;..o ~,,,, ~ ~~ia'~;i~~t.!ii~.~lAS and the.small utilities mflect"the proposed uses in the study areas and a LOS of 120 gallons:per capita per day (gpcd) or 120% of sewage flow is used heroin as a planning guide of sewice standard for those oPerated by R,'Pie.me Util gallons per of the Potable Water Master Plan any necessary chang ~1 of-se~ice Standard will be made th:rough a Comprehensive.Plan Amendment. The:level of: Utilit the County mai water than areas :of the unincorporated County :served by Ftl Pieme This. fi~ comes from the 4988 While lure is extremely high, it must be recogn PUA customers sewiCe standard. Since commemial customers use a great deal more the 4-7-0 ~: ga ons per capita per day is necessary. Water treatment facilities am designed based on the maximum daily flow expected, which is generally about 1.5 times the average daily flow. Storage, distribution and pumping capacity is based on the maximum hourly flow (generally 1.5 times the maximum daily flow)or maximum daily flow plus a fire .flow, whichever isr greater. August 6, 1999 6-D-17 Potable'Water ~' *' ~ , TABLE 6':D'2~ Potable water ~ Demand in St ,LUciecOun~t ii~l ! ~ suppiySOurce, -,, ~ · , ,(~:~ ~ulation ~'.i~ ::~_~~!~, ~ ' : ~ i AnnU~I~ I -~~)~i*i~!i~!ii P'er~~ita B~n Maw~.... ~ ' r [ ' ~ ]918 · '~ 37;2 ' 070~~' ' 111 Spanish LakesC,C. ~.~ = . . 1,7!0~ '. ~ ;54¢8;; ~0~1~ ~ :88 GeneraiDev.~util'." ...... . . ~: .::.:.... 26;096.~ 840}.4 -: .... ~~3.~,~ ~, ...~:.~.~88 R.: Pieme U'A, ' . ~ 42;600 ~ 2~'907;~7' ~"~7;9~:' ~ : ~ !92 . SUBTOTAL . 72,985 ~ 3,95! ,9~ ~ b~827 148 NoN_ PUBLIC SUPPLY '. -...--~ 43~625..~ ... 2,336~0-;~ ~,;.~.6~4e;.., .~!;48. TOTAL 116,610 6,287,9. i7,227~- 148 1AnnuaI and 'daily water uSe is in.mi!lion-gallons; per caPita USe is in gallOnS per per~h;~0~¥ daY. 2The FI0ridan sYstem is~used to meet this use. ~ ~ SOurce:. SoUth.-FlOrida WaterManagement.District, 1~985data. ntained Treatment faCilities should',be in the planning Phase for expansion, when flOWS ireach 80% of capacity, and under construction at90% of capacity. A-goOd master pian~ for system development is ,essential, as is the commit.ment:~i~!lOW the plan, ? Savannas Area Needs .. ~ This iai exPeCted to dev plants reach their useful life'and more tre~ effluent ~discharge to .the groundwate syst will .be~ increased, iai I,/VU;t~/IktI,IItIIVU lVl lk411~llll, d~ lk4,VlkIIiIIUlI~IVI lt,,/ II.I I,.'lllkl 1,4l South HutChi~nson:lsland Needs South Hutchinson, Island is currentl~ St. LuCie/Martin County line. A 12-inch water main end runs adjacent to a 12-inch line co:ming from Martin 'County. interconnected. to the not August-6,~.1999 6-D-18 Potable Water The min ace on grow only slightly, if at all, due to: environmental gpd. ThiS ama' has It assUmed that no additiOnal is portion of the island. South I-lutchinson Island do;es not have..a drinking water capacity problem, .since apparent deficiencies amain reality served by FPUA. The facilities with .on-site reveme-osmosis (R-O) systems, ho r,. are presently limited in their expansion capabilities by the new FDER policy of requiring an. industrial Waste (IW) operating permit 'for' the R-O ;brine concentrate :from ~new or service is a single line only, the service is at risk~fmm:iine Central County ~Area rNeeds The central COunty ama is generally identified as being all of the area north of IndriO Road between the' Indian .River and Interstate 95 and then the growth a ea west of North K~ngs H~ghway and Interstate 95 all the Way south t° the 'County line. This long strip is expected to deVel°p as reSidential ~mediUm density, and commemial in the eastern portion and residential suburban The 'only water treatment plants of appreciable size are at the Reserve and~ Lakes Country Club Village and Spanish Lakes Fairways. The County at present-does not have a water supply plan, which is a pressing need and necessary planning toot, for this-ama' MOst of the growth from the east to 1-95 has been served by the existing municipal or private service areas. It is anticipated .that :by ~ ~'. ~i~?, population density, commercial uses, and other high .potable water demand uses will become apparent and require regional and subregional systems whether provided-by large .developers, private utilities, or by the County. General Performance of Existing Facilities As can be seen in the I data, with the exception of Fort Pieme Utilities and Genera! ...... ~.,, ........ . ....... -all other treatment faCilities in the County are project specific, information was not readily available in which to analyze the general performance of these.facilities Which :serve the unincorporated County, evaluating the adequacy of the current level of service provided by the facilities, the general condition and expected life of the facilities, and the impact of the facilities upon adjacent natural resoumes. Because, in part, of the lack of information ~for these facilities, the County has committed to prepare a Potable Water Master Plan for the Unincorporated County. As this information becomes available as a result of the master planning effort,-it will be-incorporated into this sub-element through the plan amendment process.. Potable Water Master Plan for,the Unincorporated County 11111 J,,u,~rl~dl, Jr III ~,llV qkJlJ"tk~lW'~drl'~mll'J,q~ll'llk~lll. V il VV Iii ''ldl. I I'I,.~ IIk~i',kJ.aV ~JdPI'~I ItliV'qrk.dl.I II.'J.~lV'Wl~'q,.~'lkdllV~,.,a I I Wi.I qNIr Iql Ikdflklff I V I1klP'l I' · ql.lJ'V V I [iV I I I'~,,idl ~ · l! i[.v ,.! iv · J~! Iq.a ! vi ~.,,~.dv. ! v~d~Vl ,1~ mvv..,aI' '~,,Ja~.n. vVg*V'q,d~a,.~v ! [.,.d,~.a vi i I~k.,~'~,d~l Iql. I i M x^/o+,,.'~A~o+,-,,.m[~,~,-,r· +~,,-,..,,~,~,,.,,-,.,~,-,~+.-,,~ r',,~,,,~+,,.,r~,,o' 'o+, ,,4,,.,,,,[[' anal ~'~*~ ' ~ ' 'ua systems · ............ ,. .... ....... ,... ........ ~, ............~ ..........,r. ..... yze~~ ex[st[n , identifyl~ overall needs and lay out a program for the orderly provision of this service. Upon completion of this master plan, pertinent information will be incorporated into this sub-element through the plan amendment process. August 6, 1999 6-D-19 Potable Water Not for specific' ~them 'is~not a areas of the County. Therefore, there is ~not.a set rePl n or siting ~of new'facilities. It is intended that ad the 'Potable 'Water MaSter' Plan. Upon Potables, Water August 6,, 1999 6-D-20 GOAL.6D.I: Objective6:D-l.l: GOALS, OBJECTIVES, AND POLICIES PRO:VIDE .NEEDED PUBLIC UTILITIES IN A MANNER WHICH RESULTS-IN ~THE .MOST EFFECTIVE, ECONOMIC POTABLrE WITH PRESENT DEMAND AND EQUlREMENTS AND PROMOTES ORDERLY, COMPACT URBAN GROWTH. The Countysha!l Provide .potable Water~ facilities se that they do .not Policy_6D, 1.1.1- Policy 6D,1.1.2: Objectiver,6D.1.2: Policy '6D. 1.2.1' Policy 6D.1.2.3: Policy 6D.1.2.4: Policy .6D. 1.2.5: The-utility to be determined in the Potable Water MaSter Plan, will on ~the basis of economy and efficient operation so that they do not promote linear'or leapfrog ~development. Provision water in the the urban .Element. package treatment plants) potable limited to the utility service areas to be determined Master Plan. The utility service areas will be within ce ama boundaries as dete:rmined in the Future Land Use y-.199~ ~!i, the County will: establish and. implement procedures to form util to ensure that when a development permit is i caPacity :is available or will be available to serve concurrent with the impacts, in order to meet the level of service standards. All development will be specifically conditioned on the availability of services necessa~ to maintain: level of service standards as adopted within this Comprehensive Plan. The level' 0f areas of the unincorporated County served by Pieme Utilities Authority shall be ~ ~ gallons per capita Author~t~1!99~-~ o~ ~^,~+~, ~,,~ .per day (Ft. Pieme Utilities ',,~,..,~.~'~:~ ........... ~. ......................... ~~5~ r. "~" ~ *~"~ ~ ' VV~/" ._ The level Of service standard for potable water systems other than those owned .and by. Ft, Pieme Utilities Authority shall be 88 gallons per pletion of the Potable Water Master Plan, any necessary le in'the level of service standard will be made through a Comprehensive Plan Amendment. Once facilities are ~established in the recognized utility service areas, require that all imProvements, expansions, or increases in the capacities of facilities, ~ompatible with the established level, of service standards .for the facil Prepare annual summaries of capacity and demand information for each facility and service area. August 6, 1999 6-D-21 Potable Water Policy 6D. 1.2.6: Policy 6D.'1r.2.7: . ~ r i ~ Plan such Objective ~6D.1.3: POliCy .6D.1.3.1' Policy 6D.1.3.2: The County'wili recog twenty, year fiVe ,e are' to be CoUnty Commissioners: A. out facilities,, including that ~rvice. B, in leve C, ,wi-ce for 'th~ D~ E, .significantly maintaining levels of service. new¸ that and/or service for 1) 2)¸ cai n criteria es. F. Facilities not d but which the that such obligation is evidenced by: a E, 'above, provided reement August 6, 1999 6-D-22 Potable Water Policy 6D.1.3.3: Objective 6D.1.4: Policy 6D.1.4.1' Policy 6D. 1.4.2: Objective ~6D'1.5: Policy 6D. 1.5.1' GOAL 6D.2: Objective 6D.'2.1: Policy 6D.2.1., 1: the County executed prior to July 31, 1990. All facilities scheduled for construction or improvement in accordance with this POlicy shall be evaluated to identify any .plans of State agencies or the South Florida Water Management District that affect, or will be affected by, the proposed capital improvement. Project evaluation may ~also involve additional criteria that are unique to, each type of public facility, as described in other .elements of this ComprehenSive Plan. in the event that'the planned Capacity of public ~facilities is insufficient~to serve all apPlicants for development orders, the Board of County Commissioners will schedule capital improvements to serve developments in the 'fOllowing order of prioritY: A. previously approved orders permitting new development, B. new orders permitting, redevelopment, and C. new orders permitting new development. The County shall take steps-to insure that entities 'in the unincorporated County-but within existing service areas are adequately served. Encourage interlocal agreement between FPUA and. Martin County for an emergency connection at the County line on Hutchinson Island. Areas of high septic tank concentration, especially the White City ama and south of the St. Lucie County Airport, will be evaluated for extension~ of water .service 'in the-Potable Water Master Plan. The. ~C. ou.nty shall coordinate the extension of, or increase in the capacity of, = facilities t~: meet future needs by completing .a Potable Water Master Plan ~,. ~ i20~!!i. ._ After August 1, 1-990, the County shall require that all building permit applicants prior to permit issuance must verify that. water .service can be provided in conformance with the policies in this plan and that adequate system capacity is available if a central system is to be utilized. AGGRESSIVELY -IDENTIFY, PROTECT, CONSERVE, AND BEST UTILIZE THE COUN'rY'S AVAILABLE WATER SUPPLY RESOURCES. ~,, ^,,,,,,o~ .~., oeo ~'~ County will a""'"'"""- '~ Pn,~~Bi~ wellfield protection plan for public potable water supply. In ~conju'nction with FDER ~'.~, SFWMD, County Environmental-Health U and existing Utility systems, determine the location of existing public supply wolls which am pOrmittod to withdraw 100,000 gpd August 6, 1999 6-D-23 Potable Water Policy~6D;2'l ..2: Policy 6D.2.1.3: Policy :6D;2,1..4: Policy 6D,2.1.5: or.greater. ,In conjunction with .SFWM.D, USGS, :wells. uence of to :the degradation of the compatibility of the propOsed of public the public Policy 6D.2.1.6: a fee sYstem. to Th:eCountY conservation .program incorrporating, policies t,,, ^,,,.,,,o, ,~ '~csaO for development and water ,following Policy 6D.2.2.1: Policy .6D.2.2,2: POliCy 6D.2,2,3: Policy 6D.2.2.4: .POlicy :6D.2,2.5: Policy ~6D.2.2.6: August 6, 1999 The County shall continue to require water construction, ~' adding technological, advanceS ~occur, new · code:' as .~req xeriscaping . The .Land- rDeVelopment-Reg for new sewage treatment Any new .reuse Encourage reuse and .reclamation of water indust~ as an. alternative to .use.of prOvide 'for education of ~the publiC conservation. . . No~ c°nditional:Uses fOr sand areas information be plants and day. re, and need for water e the will 6-D,24 Potable Water areas. Objective 6D.2.3: Policy 6D,2.3.1: Policy 6D.2.3.2: Policy 6D.2.3.3: GOAL 6.D'3: Objective 6D-3.1: Policy 6D.3.1.1- IwMtvm MIMIIM~iili]~- 'MVv~~ MllVvMiavaa~' aM iaaMia~vmlevlll ~IMIi MI ' IilV :~amend the land development m~uiation~:to id~nti~ water a~ailabl~ and. allooation rat~ to pmt~ot natural ~t~m~ from oomp~tin~ wator u~o~. For normal., average rainfall yearn, water availability, use, allocation, and .management plans shall prevent the increasing water demands from · reducing the important ecological, recreational and navigational values provided by the natural systems. Water use, allocation, and management plans for emergency drought and flood ~situations shall avoid irreversible impacts on ecological systems and minimize long term. adveme impacts. The County shall not rely upon water supply soumes outside its jurisdictional boundaries to meet the water supply needs of new growth and development until water availability, use, allocation and management plans have been adopted for the proposed soume ama which specifically allocate water for such use. In no case should' water be transported across the South Florida Water Management District's boundaries. INSTITUTE A PROGRAM TO IDENTIFY, SECURE OWNERSHIP AND OPERATION OF, AND DETERMINE TREATMENT FOR THOSE WATER SUPPLIES 'REQUIRED TO PROVIDE FOR THE GROWTH NEEDS IN THE UNINCORPORATED COUNTY WHERE EXISTING 'SERVICE AREAS DO NOT EXIST. In cooperation with the SFWMD, the County shall, by .1-993 , complete a master plan which determines and quantifies groundwater resources available to growth areas in both the Surficial ~and Floridan aquifers, evaluates methods of treatment, considers environmental :impact, considers alternative financing options, and provides a schedule for County acquisition of water service. By ~ g~l~, dentlfy potential service areas for public water supplies through a Master Plan. The Master Plan-will include: 1 Identification of areas of high growth potential which are (or will be) isolated by existing servic~ areas, n~tuml geograPhic b6undades, political boundanes, Iow growth Potehtiai" areas, or other demarcations. 1 Projection of population growth in these areas. 3~ Inventory of existing water treatment plants within the area, their condition, and their ~potential for acquisition. August 6, 199'9 6-D-25 Potable Water , as the transport, if The stUdies will inClude: 1,. A of rneeds, 'based'On Projected Population and'level~'of . An invento~ of available' Water quantity and quality ~data, -soUrce ,, Recommended method of treatment. 5. n Of' .6. consi effects, waste disposal eliVer treated . Objective 6D.3.2:' ~' ' r r ~ BY~ ~, the county shall~ pr0videl , criteria-for the criteria for, Master "plan.~ Policy 6D'3.2.1: Authorize ,Service under Policy, 6D.3.1.1. A Sewice-Ama M . Review of area, needs and time frame for: develOpment. . Distribution system layout,:including hydraulic:network analysis. August 6, 1,999 6-D-26 Potable Water Policy 6D.3.2.2: t BUdget cost 'eStimates and a schedule of capital expenditure Projects financial considerations, including recommended method of funding, 'rate structure and revenue 'projections will be addresSedin a separate study or bond repOrt. The cost ~of all new: Potable water infrastructure and distribUtion systems shall be borne by those who direCtly benefit from the imprOVed~ facilities. August 6, 1999 6-D-27 Potable Water BIB H¥ 1, = 1 = Camp, Dresser, and McKee,~Ft. ~Pieme Utilities. . AuthoritY. . 1988 Water~and· ..... Wastewater Master Plan, 1988, City of .Ft, Pieme, ReSewe Area Study, 1987, Janua~, 1987. ,Florida Departmenl 1 e Sm Montgome~, James· .M., .ConSulting .Engineem, CiW of Po~ St. Lucie; er and .Sewer System Master Planning.and Evaluation, March', 1'987. SoUth Florida Water Management District, Non,Agricultural Water useia the Upper East . _~oast Planning.Area, Memorandum Report, Nov., 1979' United StatesGeologicaI-Survey and F and Shallow Sediments in St. Lucie County, FlOrida, Tallahassee, St. Lucie County Evaluation and Appraisal.~Report, 1996. November, 1996. August 6, 1999 6-D-28 ST. LUCIE COUNTY COMPREHENSIVE PLAN UPDATE 'SANITARY SEWER SUB-ELEMENT Prepared by: St. LuCie County Board of 'County Commissioners St. Lucie County Department of Community Develo-pment SANITARY SEWER ~SUB-ELEMENT TABLE OFCONTENTS INTRODUCTION ........................................................................ BACKGROUND ..................................................................... Terms and ConCepts .............................................................. Regulatory Framework ....... · ........................................................ EXISTING CO,NDITIONS ................................... , .............................. 'ExiSting Pianning Documents ............................. - ........................... Regional Facilities ................................ , ............... ;i i;; ............. paCkage Treatment Plants Septic Tanks ' NEEDS ASSESSMENT ................... - ............................................. CapaCity AssesSment ............................ . ................................ The Savannas ...................................................................... South HutChinson island .......................................................... General: Performance of :Existing Facilities ..... · ........................................ Sanita~ SewerMaster Plan for the Unincorporated County .... · sanita~ seWer Facility ~Replacement, EXpansion and~ New ~Facility ~;it~ng ...... GOALS,-OBJECTIVES, AND iPOLI.Ci'ES .................................................. BIBLIOGRAPHY ..................................................................... APPENDIX Cost Estimate of 'South 'Hutchinson Island LIST OF ~F!GURES Fiaure _ ,Page 6-A I Sewer-System Schematic ......................................... ' ............. 6-A-2 6-A-3 6 - A- 4 SePtic Tank Concentration Areas 6- A- 5 General Soil Types ..................................... ' .............. LIST OF TABLES Table Pa._(3e 6 - A- 1 Wastewater TLreatment Plants in St. Lucie County .................................. 6 - A 2 Projected Population~and Flows for the Savannas Area ................................ INTRODUCTION ST. LUCIE COUNTY SANITARY SEWER SUB-ELEMENT ~'~S-.r-_Os.alme_,.h-~o.;,, ,,o,-~,,..'e,.... ~: .,,,,~,,.r,,,,,,,,,, The importance of the municipal regional systems and on-site treatment .facilities is noted. BACKGROUND Terms and Concepts Wastewater treatment ~systems occur in many different types. They may range from indiVidual septic tanks ~and dminfieids to':large regional systems. which include gravity collection sewers, lift stations, regional treatment plants, and effluent disposal facilities. Regional Facilities: Regional facilities are large-scale sanitary sewage systems which generally provide 'service to densely populated .areas. These facilities are comprised of three components which perform the basicfunctio~ of collection, treatment, and disposal of domestic sewage. Some regional facilities may also treat industrial waste on which pm-treatment may have already been performed. The.cOllection system is composed of a .network of gravity sewer pipes which collect-sewage from individual sources .and convey it to a central location for treatment. Figure 6-A-1,~,, ........ 6--A-2~sChematically represents atypical system. _. A gravity system.is normally made up of a branching system of gently sloping pipes. Small pipes which come from an-individual soume am called services. Small pipes which combine several services are. called laterals, A larger pipe whiCh may combine several laterals is called a main. Several mains may be Combined to form a trunk main. katie diameter sewers which 'normally flow to treatment plants am called i.ntemePtors. in South Florida, gravity sewem would become very deep long before they reached regional treatment .plan.ts. Therefore, collection systems usually contain several lift stations within the system.. These_. ...... hff:.stations ,,~,.,,, .... . ..... _ u...-, .... ,,, .~. ...... u r clc','at=on ..... Thc,:~, d~scharge ~nto force- mains, wn~cn may m-turn d~scharge rote larger force mains, other lift stations, other gravity sewer systems, or into a treatment plant. Lift stations which receive flow from several ~sub-systems are often called master lift stations. Large force mains, which receive flow from several lift stations, are August 6, 1999 6 - A - 1 SANITARY SEWER called manifolds, August 6, 1999 6-A-2 SANITARY SEWER- August 6, 1999 6-A--3 SANITARY SEWER The treatment plant which depending on Primary Treatment: This refers to .a mmova! of betWeen materials and 'up ~to .50% of-the ~solids from the 'physical 'treatment, because screenS .and settling tanks are used to remove the solids. Secondary Treatment: Seconda~ treatment: total', organic material and suspended ,solids from. sewage. requires multiple~ steps i~nvolving for~ .removal of suspended solids. The effluent from a second chemicallY treated and filtered. This is sometimes referred to as treatment. Tertiary Treatment: Sewage ..may alSo .contain large-quantities compounds or inorganic chemicals: which may create · Te~iary or advanced treatment :provides processes to remove ~these common tediary processes ~remove compounds of which promote ~unwanted growth of biota in necessary for desirable environme~ntal conditions. The processes often approaches .potable water purity.' The treated water .produced by the waStewater'treatment system-is known disposal: alternatives in St. Lucie County include discharge to a percolation into the shallow groundwater, or injection into deep-aquifers. The solid by-pr~3dUct, or residual,-of 'the treatment · dispOsal, .sludge. is usually subjected stabilize, and/ordewater. These processes allow for-a and deposition, Common, disl asa ~soil conditioner for agricultural purposes, and incineration. Package Treatment Plants: .packag which have a collection network, treatment plant, and diSposal system. In St, small package plants are actUrally ve~' large :septic tanks with sand Package plants may be designed .to provide any level of treatment, but providing, at a minimum, seconda~ treatment are used. Package Plants of capacities up to one-million gallons per day. They are developments and am shipment to the site .of use- methods may also-be ~anic not removed. The-most nutrients oxygen Effluent reuse, final untY a few on, ts in ~a range isolated r prior to are drainfields, pemolation ,pondS, and sPray irrigation.: Except for all effluent from-package plants .must ~be chlorinated-for disinfection ~ ection, August 6, 1999 6-a .4 SANITARY SEWER S require full-time ~attendance by an:operator, and ~many~small the County are run .by operating se~ices. Some 'Small package plants only require an.operator for two o.r three non-consecutive~ visits per week,: totaling one to~one .and one-half hours .per-week. The'aYerage small package plant has an operator ;on-site for only one-half hour per day, ~five :days per Week. As a msult,.preventive maintenance ofthe plant and/or usual S and pemolate 'into usually used, to se~e single housing ~units, although The system consists of two comPonents, wastewater from .the home and provides a which.'time a ~signifiCant .portion of.the-suspended solids seE!e ~out, .The drainage, pipes into the drainfield ~micm-organisms and filtration processes purify the liquids' Septic years to remove'accumulated solids. These prior to dispOsal. Sepl poor ~nditions. These include high water table, . and miscellaneous effects from other conditions such as hydraulic machines. Regulatory Framework The Federal Water-Pollution COntrol Act (PL 92,500) is.the controlling national legislation relating to the provision =of sanitary sewer service. The goal of .this act is the mst0ration, and/or maintenance of rthe ~chemicai, Physical and biological integrity of the nation's watem. The act established the national policy of implementing ama-wide waste treatment and management programs' to ensure adequate control of coumes_ of ~pollutants. Under Section 201 of PI 92-500, grants are made available'to ~lOCal governments to construct facilities 'to treat "poi~tn ~soumes~ "of pollution,~ which~ include e-ffluentrfmm sewage treatment processes. The U,S. Environmental Protection Agency i.s~ mspo~nsible for implementing the act. has adopted rules for the 'regulation .of wastewater facilities in Chapterr 17-600, F.A.C. These ~rules apPly to faCilities .flows exceeding 5,000 gallons per day for domestic establishments, 3'000 food seWice establishments, and where the ~sewage contains indUrstriai, toxic o regulates ~septic tank and drainfield~installation within.the State. These requirements have been adopted ~bY rule ~in Chapter ~-OD,6~~,~~. ~' F,A.C. Individual septic tanks am County Health Department and regulated in accordance with F.A.C, When ~a privately or municipally owned Utility serves a community and charges on an indMrdual ~basis, :it ~is regulated byan overseeing Commission or Authority. Until recentlY, this body~was the ~PUblic Service Commission. Recently, the St. ~Lucie August 6, 1999 6 - A- 5 SANITARY SEWER areas~ EXISTING CONDITIONS Existing Planning'Doc~uments intended area of service for:the ~systems ,in aries of now Publ Ot d~ plants. Ft. which (PSC). small .area. ~These sub,reg The ~Ft. Pieme Indian ~Riverin Ft. Pierce. Currently, August :6, 1999 6~A-6 the SANITARY SEWER EDE~iwhich.rates the wastewater treatment plant at' a flow of 9,0 MGD (maximum'month) tO serve the City ~of Ft. Pieme through the~year 2000 with an estimated existing service'ama population of 40,867. /r-~,~,.., n...o~....~.,~ ~,.~-..,~ ...... '.,". ~'" ..... ',-',"' ...... ' ............. ,, .... .' .-.----~,'., ,..,,=o~, ,, .,,,o plant-has proximately 4 MGD of excess-caPacity with.the highest' maximum month average flow of ~..,,3 M~n ,~,+,-,-~,~,,4 from h;~nr!"-~[..,.,~+-.,.,~+-.,· ~[~,.,o ~,.,',,,, 4.o~ +,., 4 os~n I Il I SlUE, VI l~ff~_..~.l Vlff~.4u~!~fffwt.4~,df.i IlV~V~,ff SI'VI.Il IVVI~ I . ifil/ lllla~lPl, q,,~l · II. A11 'fyi ~ l'llllAl, ll,,,,~l :kAl, lli.~ ~I I l,,4'q,/&¥111al.¥l LI~iIII'[~I I¥1 VIII 'Id kl¥ IVY 1.4 IVU &l i ' "· ~4~1V&,4,Ul ~V~,4,t II~,,f]l &,.w'l I,~VVVI' ~4,1 At fh;e, .tlm,.,,. ~.!'~1 .I c, ,N r~ ~,,-, c, r~,~Hc, .nf ~;~,~r. Derb Q: ,hH;~lelnn ; .· =~ .' _ I · w IVi I I~ I IVI II I VI I VV Il I i la' ~lllg ,,, ........... :,, ~.,.,,,...~ ...... r., ............. ~ ..... h=n the? C,tv...-F p-~ S*, ' ,'~;" "'-,~" -~-,. ~ e ' li~ VI I VII i* bUVIV Ill IIVII lilly ~1 IVIli llVlll lUt~lV 'WI VIVV ~ ~l IV 'lV~lVl l~l V~kVlli~ August 6, 1999 6 - A - 7 SANITARY SEWER Figure 6-A-2 - Sanita~ Sewer ServiCe,Areas August 6, 199,9 6-A-8 SANITARY SEWER August 6, 1999 6-A-9 SANITARY SEWER August 6, 1999' 6,A-10 SANITARY SEWER Package Treatment Plants Package treatment plants make up a large portion of the wastewater treatment capacity~in the County. 'Figure 6-A-3, ~,-,,,,,,~ ,-,~, ,-,~,,~, ~.~_o oh,-,,~,o .... ..... r-'-'= .... -.,-~o ..... o wastewater treatment plants throughout the hCOUn~ntyinclU~in~ package treatment plants. Table 6-A-, ~,.-,,~,,,,,,,,, ,-,, ~,~,-,,-~-~_~n ,{~+o -, .-.-.~ ........ ~ .... ~.,..~ .... ...,~.,..,~ the plants - ... ~, -Y ' .g °ups these plants by land use. The table shows the location of the plants, the desi. 6-A-3 - PaCkage Treatment Plant Locations capacity, operating capacity, percentage August 6, 1999 6-A-11 SANITARY SEWER of Septic In Se ,a leased 2 se in the August 6, 1999 6-A-12 SANITARY SEWER Figure 6-A-3. Wastewater Treatment~ 'Plant. Locations August 6, 1999 6-A-13 SANITARY SEWER