DR9604-CS010426 Elm F~ W~
~ ~d D~n
In ~Uon w~
T~ ~e of ~ f~ ~m Upper T~ ~er F~bi~ S~ P~J~ S~ Plan r~
~m~ex~ a~ d~ ~a~re of ~ ~ study ama. ~ ~d~ ~the Elm For~ a
~bu~ ~ ~e T~l~ River, is ~ w~tn a d~lng ~i~n ~ea. Urb~
~s ~ul~d in al~mti~ to ~e ~ml ~ ~ ~e ~aln. ~er ~e past ~u~e of
~, ~c ~s led ~ and ~1 jud~t~s ~ s~ ~ u~ of
~pl~n. Lends upst~m and adj~t to the Elm F~ ~ and ~ ~
~tinu~g to be ~velo~ by ~ i~ ~ h~s~g ~d ~mmercial develop~nt,
~e ~o~d ~m Fo~ a~dy ~ld be dl~ ~e~ ~e d~lop~nt of a ~
~na~ment maat~ plan and to ~ ~ of ~ fl~a~ u~s of fl~ water at.age,
gr~ ~a~, ~a~ pre~, ~ and ~da~ h~t, and u~an ~n ~a~ and
~a~. Pm~ stu~ ~ f~a on a~hg ~hed ~n~t, ~i~ental
~t~, fl~ d~age r~u~, wafted ~n and ~a~n and
r~tlo~l ~po~une~ ~d n~s. ~e E~m F~ ~ ~ ~ ~ sRuated In ~e Ci~es
~ Caren, ~l, F~s Bmn~, I~ e~ L~ile, wlth~ Da[l~ a~ Denton Coum~.
~e s~dy ~ lim~ ~ e~nd ~ an area ~ ~ of int~te ~, p~i~
~d ~ L~S~ ~ke and en~mp~aing ~e a~ ~ a~ w~ ~ S~ Ro~e 21,
in~ing ~nt~ C~k, Fumea~ Creek, ~e Cm~, ~ff~ C~, I~{an C~,
C~ and Gra~
In o~ ~ ~ ~ ~nditbns ~ ~e s~dy at~ as ~m~y as poulb~, ~e stu~ as de~lled
in a proje~ ma~g~ p~n ~11 be ~n~ ~ throe ~es. ~ ~as~ will ~1~
~gr~ mv~ at sign~nt ~in~ dudng t~ s~, The work ~ e~ of ~e pha~ ~1 be
~NId~ ~ ~e ~ng ames:
Phm I will co~sist of ~t~bliahing ~e hydrologic, eng~, a~ envk~n~l exi.tlng
~s ~ ~e s~dy ~a. Dudng ~ts ~, ~ ~s~ ~11 ~ made by t~m ~mbem to
develop ~e~ ~m~ ~ the stu~ area. ~ls[Ing ~ ~ot~ and d~
ma~lng ~ ~e ~p~ will ~ utB~ed ~ ~e e~en: ~t~. ~y ~pl~e h~ a~
hydmult~ m~s ~11 be buil~at~ and an e~ ~ ~ ~ pm~r~, A~l~t
toeing baleen ~e U.S. ~ ~s ~ ~gh~ (U~E), Pa~mh~ C~ (Ca~lt~,
~p~l, F~ Bmr, I~ing, and L~I~), D~I~ ~ ~ Co~, ~e No~h Cen~l
Te~ ~n~l ~ G~men~ (NCTC~) ~1 ~ ~ ~ discuss ~ msui~ of this ph~e and
ag~ ~ ~ ~ w~ be ~d into ~a~ 2. If n~, the ~
m~, b~ ~ ~e ~u~ ~ Phase 1 a~dt~, p~ ~ ~g ~ P~e 2.
Pha~ 2 w~l ~nsbt of inv~afi~ ali ~ma~e~ ~r ~1~1~ ~y ~ln~g the ~= and
~ne~ a~i~ ~ e~ ~a~e. ~ls ~ will ~ u~ to ~te~e t~e ~tional
E~ D~t (N~) pt~ ~d ~e L~ly Pm~ ~an (if d~rent). ~e NED plan
will ~ ~ to ~ure ~at ~e p~ ~at m~lm~ n~ b~ ~ ~ ~en~, Th~
~ (~ ~) ~ll ~ ~ ~to ~e 3 ~r ~al~tlon. A Joint m~ng ~ ~e Co~s.
Pa~nemh~ C~, DaRes and D~t~ Co~s, and NCTC~ ~]1 ~ h~ at the
~ase to agr~ ~ ~e L~lly Pmfe~ ~n.
Pha~ 3 will ~naist of paroling ~ fl~l work n~a~ to ~ a m~e ~ d~n of
the NED ~d LoWly P~ PI~ and to prepare ~e Fe~l~ ~ end ~te~
envlr~ d~. ~ ph~e ~1 I~lu~ ~1~ ere inv~l~ti~s, appraisal of
pro~ w~ln ~e ~ ~, dev~m~ of m~n r~ulramen~ (E n~saa~), ~ltural
resources f~:l ~r~ys, f~nalizat~on of r~n ~s, ~em~ of na~h~ ~nUnui~
~ ~, ~0 ~t ~s~ ~t ~t~, A ~ee mai ~e ap~ls~ w~l
p~. In ~d~, an ~a~ of ~ flnan~l ~[1[~ of ~ ~ ~ ~ share
~e ~ of ~ ~ ~ne~ ~ ~ ~- ~ ~l~i~ ~od ~l ba ~ and
pubil~ du~ ~b
~. ~th~ ~ne ~ ~ ~lna~on, ~ ~ ~ in ~ ~ ~ a plan
E~ ~t~d~
(NER), ~e N~ ~ NER p~ shes ~ ~da~ in ~e~ d f~r
~, ~e~, ~, end a~a~. ~e~n~ ~ ~ e~t ~ wh~ a
g~ a~e ~ ~ ~d ~Jn~ for ~1 ~ ~ ~ ~ ~s to
ensue ~e ~l~t~ ~ ~ten~ d~. ~ ~ ~ ~t ~ ~ ~ sit.afire p~n
~ ~ ~ ~e m~t ~at e~ means of
~tent to ~ an a~m~e plan ~ ap~ by
Di~l ~i. ~ ~i ~ ~d ~ ~ w9l ~ ~ ~ ~. Dats flies shad ~ in
M~ ~d ~ ~. ~1 ~ ~ all ~ ~n~ will uea M~ W~
~m ~ ~ M~ ~, ~t ~
The ~namh~ ~ wgl a~ ~e ~t
~e ~ ~1 I~ude Juet~ie ~ ~ m~ e~ ~ ~h and ~dl~e
~. It is a~pat~ fiat ~r~ ~ ~ur a~e ~ ~l ~ d~oP~ in pmllmina~
detail for ~ ~ a~, s~ ~t a ~l~d p~ (N~
~ r~ conducting a master plan and watershed study of
Work actMtlea v~l be generally targeted tows
the Elm Fork I:~Iver study area. Spe¢~Ic wo~ i:x'ogram actNffies will Include:
· Reaean:~lrig previously completed hydrologic and hyd~ulic sb~les and accessing the
various FEMA re~x3rt~ throug~o~ ~a basrn study area.
· Updating ti~e FEMA leO-year floodplak~ contours based on re-examination of
· Reviewing existing GlS database InformaltOn and ariel and t~pographlc mapping.
· Collecting Information on the ~arrent and future physical conditions of the basin study
ares includb'~ e~dallng land uae plans er~ regional land use outlooks.
Neede/oppo~'unit~ will be prioritized f(3r ecosystem restoration, localized flooding, water quality,
and recreation, An b3vantory of i:x~llnlblary natural re~ur~es and rect~ltf~'t faclllltas within the
study area wttl 0e conducted. ~udy effort~ will include general Inve~ttgatlorl~ of fx~tentlal
watershacl pclicle~ (similar to t~a Trinity RNer ~ Development Cert~icata. or CDC,
Process), including velocity contro~. ~etting base I1(x3d aleYaticns {BFE), and vail®y storage
consa'aint".
The study I:x'ogram will seek t~ invealJgat~ and define potet3tlal sctlor~s that cau~d ba mplamented
to:
· Provide policy direction tD local governments In the basin study ama to stabilize and reduce
future floodplain development tmoacta on the watershed area. This action ccmstltutas
dev®lc~rnent of a floodptain management plan.
· identify local f~odlng problem~ and a~er reoommer~daUon" for the imptementa~on of flo od
damage redu~ meaeu~ ~ mmy Include: bu~, ~p_*.~,re r~lstr~, ~nnel
modl~cation$, de~ntlcn bas,e, levees, f~xx;lwall~, drainage structures, anti pump stations
(bo~ Fede~all~ funded and locally funded).
· Identif~ ecosystem msto'at~an opportunities through ~e Implementation of w~and protacaon
and c~ea~n, em~icx-~sedYnentation control and land reclamatla~ projects.
· mevek;~ preliminary rec~atlon and open e~ plans k3r pmpa~ed proJe~ lands.
The pot~nl~l types of projects to be invesUgat~d will consist of:.
1. A rna$~r f~x~clpiain management plan
2. A no-action altema~ive
3. Selective buyout~ and raloc~Jofls
4. Flood-pmoflng/stru~ure talcings
5. Channel rnodi~3a~rls {is: dlvemions)
8. Detention ba~n~
7. Drainage itn. mtum~
8. Pump =talion~
9. Levees end floodwal~
t0. We~and ¢maUg~ and rearm'arian
1 ~. Land mclama~ion
12. Recn~aflon ~eab~m~ lid plan ~u,,ponen~
The following ta~ de~crlbe Ule services ~a! could be pe~3rmed by the Co~s o~ Engirmers
wo~lng in ~onJuncflon wibh the Pm'tnersh~ CII~e, D,a~,= end Denb3n Cour~dee ,*nd ~ North
Central Texas Coun¢~ o~' Governments, ~her entree, and ~elect~cl A/E firms tD complete ~he Earn
Fork Master Plan. The la~k', relate b3 canducting a Feeslb#~ Study for watershed management
including mult~ ecosystem restoration, flood damage reduction and r~creatfon.
Task I - Update the Oeographlc Information .~¥.tmm (~15)
The reek will serve to upc~ate a GIS database ~at will be u.~ed In sablequent tasks for analyzing
data collected In the attx:ly: The system will be cx~mlruc~ed to allow U~e ~tegration of diaperers
data sources from Ule PatlnemhJp Cltle~. Dallas and Dentor~ Counties, the North Central Texas
Counc, U of Government, prevlou~ ~ work, end that dev~opm:l in subemquen! task.% end
provide the capablity far analysis to asset wt~ plan forn'~lon, end the ability to generate
documentation and i~entation graphics. The following Items will be performed as a part of this
task.
· Imagery of the study ama wtU be gathemcl Eom ~$ North Central Texa~ Council of
Governments in the form of Aerlai Pho~-~.phy CIR DOQQ~, and LandSat Satellite
scenes. Alt data generated ~' obtained will be delivered to the Corp~ of Engineers and
cople~ pn:wided to t~e I=ar~mlhlp Ciflel. Additional data sources may be utilized as
required, and provided to Ute Corp~, to gene,'ate the data layem.
· Updated Texa~ Deparb'nent of Tranaportation (TXDOT) County vector ~e.s shall be
obtained for Dallas end De. on Counties t~ the extent they are available, and ~e
common themes will be me~ged into ~epm'.ate coverages. ~ TXDOT ales contain
fl'tomes such aa roadways, waten~aya, polltlc~ boundarlem, end o~rters:
Detailed hydrology da~a, l~a beat aveltab~, fram the Partnersttip Cities, the NCTCOG,
the ,State, EPA or US(3S shatl be resean=hed and Included. Two (2) [o~3t contoum shell
be obtained wtthth the Begirt and p~ovlded by qued as line.'ams. County level digital
soils mepe (SSUROO) ~aa be ol~alned ~r tho~ counties In which ~t Is ava#able. Easily
avalable and input climate data ~hall be re.earthed end hcluded, it is expected that data
from the NCTCO(3 LIDAR surveys wffi be aval~13~e k~' this ~a. Jdy.
A GIS-43ased mag shall be ground verlf'md through field etavaU~ spot ~.
da~ ~11 ~dude, ~ n~ ~ li~ ~, v~ h~t ~d ~d use
~ w~l ~ ~n~ ~ ~ o~ d~ a~e, The ~v~ ~ll be g~e~
~ de~ ~h~ l~dy a~. ~e GIS s~m ~111~lu~ ~ ~ ~ ~nt
~ ~8f ~aphy, satiate Im~, ~ ~. ~ ~o, ~e
~1~ ~ ~e da~ ~e ~. GIS~ lnf~t~n ~m e~at~g or
~ pm~ ~ o~ en~ ~1 ~ ~ a~ u~ ~ ~e e~t ~e.
This task Inc~ude~ support for anvl~mmental and economics work effo~.
The Corps, the P~'tnlr~hlp Cities, DeJla~ and Denton Counties, and the North Central Texas
Council of Governments would utilize this (3IS for the duration of this project to provide analysis of
watemh®d tmpact~ of changing land use and vegetation. The Corl~ and the Partnemhip Cities
shall be queried as to currant data availability in house before ~ly data I~ purchased. The Corps
shall review and authorize, with County act/Ice, ali data wendom and acale~ utilized before any
purct~ase" ars Inlt~tad in ~ GI~ development.
Deliverable: (315 database containing digital Imagery, ts~c~taph~ spot elevations,
de~ved ~emg~, F~eml, 8~ta, and Coun~ ~, ~d idd~l ~ a~ Cl~
p~vlded da~ ~y~. P~vld~ Info.atari on la~ u~, ~nlng, ~gh~oodl and
dtat~.
Taak 2 - Idan~tion of Permitted Dtacharga Sourc~a
The purpose of this task will be to locate end Identify the permitted dL~..harge sources within the
watershed. The task will also serve to develop Ol~ data layem that will be used In subsequent
tasks for analyzing data collected in the study. 'The following items will be performed as a part of
this task.
The stuo~J ta~m wll fie'form s regulatory ~,~x~l:la search end literature review of ~ed
di~s within ~ wat~sh~. R~u~g da~ from ~ s~, ~uding ~fl~. shall
~ de~v~ ~ a ~at t~t ~n bo inp~ eas~ ~ ~e GIS.
A records search of permitted dlechergem wi~in the watershed, and their location
Information, will be developed fi3r Inclusion in the SIS ¢latebese. Ma~or pollutant release
incidents In the watamhed within the last 5 yearn wll atao be Identified es part of this teal<
and added to ~le clatabase. TNRCC. EPA, and Pa~tne~p CIt.J clare shall be included.
Results shall document data source.
The Infonmatic~ develo~oed in thi~ task will be used in conjunction with plan formulation e~orts to
proved® a k3catlo~ for potential structural project~ Ihet could be used to adequately manage
watershed resources.
Deliverables: (318 ready data fay~m of pan. it dlaoharga ~ouroee records ~ear~h results,
permltle~ dtaGhargem, and p~lluflon retaaaa Incldenta, with metadata detailing data
4
Ta~k 3 - Identification of Other Pollution ~umee
Using available resources such as Texas DOQQ aerial photo~lrephy, public domain aerial
pi3otogmphy, and a windshield .,umm¥ of the w~arahed, the study team w~JI identify other
pollutlo~ source', w~"~in ~ wet~ed. This ~eamh will attan'Ot to Identify a broad range ef
sources. The impact of agricultural and mining mtatad ~=lNrtie~ w~il lik~ be Investigated.
These ofh~' 1~ ~ources will be added t~ the GI$ database. Data fields for ~ database
will be llrn~ed to readily identifiable Infortnation such as type of activity, address and latitude
longitude, approxl~rmta I[ze of activity, apparent nature of pollutsnt~, and contact Information if
Ide~tlflabte from business signs, real estate iigns, etc. No field interviews, title or proper~ record
sea,-ches will be conducted as p4~t of this task, Photos will be taken of identified sources and
locations identified. The info.nation developed in this task will be used In conjunction with plan
formulation to provide a ~catlon for potential struc~ projects lhat could be u~ed to manage the
watershed.
L,ltarsturl self, eh - Hlzardoul~ Taxlc and Eadlelo~lcll Waste (H'rRw)
The study ~ will be invast~atad for detarminlng the ~ of Hazardous, Toxic and
Rediologlcal Walte (HTRY~ materials. Al approp~a~e, ms Investigations, armies and
documentation will generally be conducted as follows (No detailed analysis for t~ ent~
watershed is currently i:Hannad, but the record data search will cover the entire, broad watershed:
1. Site reconnal~nce - The study area and general vicinity will be investigated for ~e presence
or suspected ~ of HT~ matarlals. The Investigation will be limited to sun<ace
reconnaissance (Ia: drilling wilt not be required). The site reconnaissance will be documented with
ap~ropriata maps, photogradhe and text,
2. Municipal _r,_,y: ~/;,'ds review - Revfew of infon'~on and records. Th,, purpose of this review is to
determine if violation of municipsl Codes has occun'ed of~ site.
3, State records review - Revlew Texas Natural Resource Conservation Commisslorl datal~asas
for under.round storage tank facilitY, leaking unde~round storage tacllitias and landfill closures,
which may be present within one-half mile of the site.
4. Federal records review - A review of the Environmental Protection Agency, Compcehansive
Environmental Response Compensation and Liabltlty Informat~ System, Resource
Consen~atlon and Recovo~ Act and Emergency NotJflcet~ Systanl liltings. The purpose of this
review will be to I~entJfy the praser~t LISa of H'I'~W mata~ele being stored, generated, or
transported in the area, or any Slate liens related to violations of the above acts.
All t'~dlng$ w#l be detailed in a formal report including recornrnendatlon~ for further action If
required. Lists of ~ourc~ materials and copiel of releven~ reports, which heys been reviewed, will
be attached.
Uplands recor~ searches may reveal t~e nee~ ~or a~dltlortal test)rig In ~ese areas, which Is not -
includ~ in this s. co~a of work.
Detlvarable~: Field Inv~tlgetlen re~ult~ re~t with GI$ re-dy layem of altae ,,nd photos
as data
Teak 4 - klenflf~tien of Addltlorml Regulatory ContrMI Available Through New
1'o comple~ thil tick, the sL<ly telm will perform I review of ~ raleam~ or developing
regulations b'-at may be available to ski In water,had management. The roltow~g Items wfl~ be
comp~Med .~ a p~t of ~i= ta.k.
· The ~tuOy tsam will inve~lg~ 1~ lu(3~ aa EPA/TNRCC's Phasa 2 storm water
program', the C,<xp~ of En~inee~ 8ec~on 404 permit I~=gram, TNF~¢'s Sec~on 26.177
Wat~ Pollution Control end A~abement and TMDL ixogram. The purp<~e of rn~ review
i~ to I~ent~/o~her regulatory veiq~es, which may be used to probec~ the receiving waters
The Study team wtl atto Identify ~ rev~w re~onM munh;ipal storm w~ter ix~liclea,
oec~nan~ and sourca~, which wan'ant NPDES Phase II de~ignM~n by EP.aJTNRCC.
· Throe meednl~ will be condu~_c~e~__ on a maximum of two consecative days ss par( of this
task, one each wl~ the TNRGC sa~rn water section, one ~ the TNRCC ~3~ca water
pro~ev-'~on sectton, and eel with the TNRCG TMDL __.~,e~o~.
· Fr~'n the Closed Landrlls survey I:h'ojlct, NCTCOG w~ll provide Informatioa, inducf~ng
015 data. a~oclated w~ oloae<l la~ In the sludy area,
in areas v/~em municipal reguleton/controls cannoL ~wa no{, be enacted, stnJctural con~'ols
may be necessary to act~ieva · water quality benet~, Ident~/Ing and locating these potential
structural proj__,~._ w~l be accomplished in ~ubsaquar~ ta~k=.
Deliverable: Executive summary and report detoillng Intervlew~ end pregram·, analy=l· ef
reeulto wll~ i)rsaentittone to the Corps Ir)d the ParmMlhlp CEils (if requested).
Te~k 5 - Devakapment of a Framework for Implementation of AddEIonel Regulatory
Controls
The goal of this ta~k will be to develop I framework for the purl:x3ae of determining how to
implement add~onal regulalory c~ontrols ~o control pollution and development patterns. The
followkqg items wlU be completed es · part of this task.
· The study team will w<3rx ~tt~ the Pe~lneflhip ~ to Identify changes k3 the ex~stlng
proration ordlnancsa nece'.~m'7 to address drab'rage and poilutant sources Identified in
previous ~asks and to dlvatcq3 · ~ m .ew~'k for u·e of o~er regulatory rnee. sursa for
watershed management.
· The study team will a~e~ existlng storm water management guidance met·rials
devaloped by other local and regicaal prograrr~ to determk'~ o~3~icns for applying those
· The abov~ asse~sn~ent wll be be·ed on the ·x~tlr~ NCTCOG manual and w,I
i~corpor~e BMP menus now being developed by EPNTNRCC es part o~ the Phaee [I
progr·m. Elements of the Trinity Conffi0~ DevMopment ~ Process c~JId be
Incoq:x:~lted to ·ddt·sa flooding related ie~uM. To the extent possible, ~av~ous work
efforts will be ut~lz~d In ~ls tsak and emphasis ~ be on selection of BMP's aOl3ro~'late
for the watershed rather then develop~qt of new B.MP's. The NCTCOG BMP manual
devMopmenl w~l be c~osaly coordinated with NPDES Phase I and Phase II entities within
· e watemhed, ~uc~ ~ TxDOT.
· The study team will develop, or~ a conceptual basis, a n3cclet ordinance framework for
use by Phase II citie~ withi~ the wet~,~¢i a~ bhey develop their Phs~ II s;u,n water
progran~. The model on:llnam3e will ~3eclt'lcally address i~ue~ important to the
protection of ~ Elm Fo~ wat~r~hed. Prevlo~ ~ on~lnen''~ dev~oped by
NCTCOG and now In u~e by metroplex Phase I clbea will be u~d aa the basis fof this
ordinance. The actual chenge~ will be made out, ldo the framework of this study and after
the regulatory contn~l have been Iden~.
DMIverablea: Meeting m&nulte~ reEardlng ordinance frame~ork~ BMP rnant~l/lystenl and
¢oflc~ptual model ordinance fmrnework.
Teak G · IdentlflciUofl of lake Operation I~ue~ and Potential Operltlemd Modlflcsflone or
Nofl-&tTt~'tuml Cefltrell at Grapevine Lake and Lew~vflle Lake
Tnl~ ta~k wtil Include an Identlflcetlon and review of lake operational practices that could improve
water quality in the iaku and trlbuterle~ and pos~i~oly addrea~ floodplain management leaue~
through a systems ai~. The following ~ wa be completed as a part of this task.
· The study team will review lake ~rational practJc~. The m~ults will be Incorporated
into the report t~ ensure that optimization of the operational procedures h~ been
accomplished.
Deliverable: Report summarizing tJkl el~lrltlena prlctlols.
Task T -Plan Formulation
The purp<x~e of I~i~ teak will be to establish an overall f~amework for identi~nl; problems, needs
and opportunities for screening, formulating and evaluating improver~nt altemaUves for the
watershed.
The formulation process will f~low a phased approach. Dultng Phase 1, the study team and
Spor,a~r, along wr~ the Partnemhlp Clbe~, will Inl~ial~ identify baseline exi$~ng conditions for the
study area, Subsequenlly, problems, needs, and opportuntllea will be defined. F'lennlng
obJecflvu and conatratnt~ for the multiple purpose study will ~e~ve to establish a framework for
development of final alternafive~. Futur~ projections [or each identified problem. In the absence of
any Impn:wements, shall constitute the end of Ph~e I form~etion.
Phase 2 formulation will build up~3n Phase I results by K~'eanlng ~ c~3mpsring different ~s of
~p~ual Impro~menl atem~ f~ ~ ~ p~. ~ ~1 Sp~ ~ be
~p~blb~ f~ ~ gu~e~ ~ ~ ~bill~ ~ p~n ~s. Based on
en~men~l, ~l~om~ and m~l ~t~ns and prel]mina~ ~st ~p~ons,
~t~ 8h~l ~ r~ ~ p~. ~ N~ a~maUve will be ~. a~
dl~t. ~1 ~so ~ Id~d ~ de~fl~ d~ign.
Phase 3 wilt entail an optimization M the ~c~d improvement Mtornatlve. A de~E~
~padson of ~ ~d ~ ~ all ~1 ~ ~,~ ~a ~ ~ to ~1~ a plan for
~ problem. F~ ~y=~ ~ ~n~, en ~-~1 ~t an~ysis ~11 be u~ed
In ~j~on ~ a H~t E~lua~ ~um (HEP) ~ ~
R~t~ Ran ~). U~E gu~ln~ m~m ~ plan fo~la~n inclu~
mMsume ~ ~11 ~ a '~-act~' p~n for e~ I~t~ ~Uem.
The Study will Ident~, ;~t~t~ k)c~ons for w~ quell~j ~ pm~ w~ln ~e Elm Fo~
wate~hed. L~ti~s will be c~nt w~ ~ I~ ~ ~ ~n~ ~ur~ lden~flon
tas~ es w~l as r~at~ s~dl~ ~ ~ ~ Trin~ ~ ~i~ .~ ~ by ~ U,S. ~y
C~s of En~eem. ~e ~ ~ ~ to be ~d In ~ ~ ~uld ~ pHmariN
st~J~,,~ ~ ~m ~ wouM ~e ~e ~1 to In~ e~tem re.oration a~
7
rec~eetio~ feat~n~ es well. The bjpos of structural pr~ ~t ~uld ~ ~red
S~a~ s~ ~ pmt~
~ ~ r~
T~ ~t ~
W~a~ ~t ~
F~t fl~ ~sins ~ong h~, indus~ai a~ ~ d~seN d~d ames
~opment ~m. ~ ~ ~ns. a~ r~ ~ s~ st~. ~e 8~ns~ she,
Input for ~m ~ p~. ~m ~. gu~ ~ mcrm~ion
sp~tf~ ~ I~, ~m ~ f~rm ~mic ~ment ~ans.
~llv~le: In~m ~um~ m~ de~llng ~an f~u~tlen ~te~a and
Talk 8 - Public Meeting-
The pu~ of this ta~k will be to c~rduct s public Invo~vemm'tt program for the Elm Fork
Feasibility Study. A maximum of four public ~coping meeUngs and a max~num of four
Environmental impact Stat~t review meetings will be conducted. The Items Included in
conducting · public inv~vement program for the pro,act ara listed below:
· wo~ with tt~e local sponsor, Par'b~erahip Cities and Counties to develop a target group
for b~e pubttc meetings.
· Work with the Counties, Per~erahlp C~Ue~ and other enfifle~ to determine meeting
locations, required attendees, and meeang fen'eeL
Prebem ~ electro~ic meeting pre~e~tetio~ and electronic and conventional visual aids
for the mee~w.
· Prepare Interim r. ewslettm'-, on a semi-annual basis.
· C~nduct the public meet;rigs (ecopk',g and ELS).
Oeliv~'a~l~: NewMetter~, vim.lei aMI, pre~antatlone and reports ~n reault~ of meetlnge,
leeuee ral=4~l and re~poneee with Input from C4~rpa,
Teak $ - Teem
The study team will meet regularly during ~e coume of ~ bevelogmerff of the draft Feasibilhy
report. The study team is dart, ed as k~uding appmi:)riate members of the Corps of En~neers,
the Per'~emhip C,~, Deaas and Denton C~untte~, the North CenlTel Taxa~ Council of
Governments (NCTCOG), selected ,ME I~'*ma and other ~titiee Wet may need to get ievolvoci.
For the pu~ of this task, team membem from the CeE. the Partnership Cities. Del~s and
Denton Counties and NCTCOG will meet up to a maximum of 36 times dur~tg the course of the
draft st~Jdy. Other meetings are not · pert of this ecg)pa of wo~ a~d wtll be added under ·
separate scope of service.
Dellvm'ablm,: Mlnt~.e~ of meetings arKI summary of reeulte end declelone.
Talk t0 - Overnight Committee Meetings
A~ oversight c~mmi~a will elsa be established for the project The oversight committee wffi be
comprised of appropriat~ members of the COE, Dallas and De~t~ Counties, the Pednershtp
Cltias and the Nor~ Central Texas Count1 of Oovernrr~, The committee will meet quarterly
for up to twelve t~mas :o oversee a~d revtew the progress of me study.
Detlveniblell: Minutes of m~Jnge and aUmJTtm7 of re~uP, J ind degis~ona.
T~mk 11 - Hydrlulic~ end Hydrology
The existing Upper Tdn~ ~yomlngic analysis of existing COnditions she# be utlllz~ to
~e. F~ hyd~ and h~ atud~, a ~ ~ an~ ~m~ ~11 ~ d~elop~
intense, ~nM ~ roughS, a~ ~ ~ ~. A r~ let Of fl~plain
A hydro~ inveetlgaflo~ will be conductec~, which InckKles colncide~o alnslyNs, rainfall
analys~, p~li~ln&,'y sub-bask~ delineatk~s, Interior ~ub-be~n unltgra~h~, $CS c~rve number
d,,,terminatJons, channel r~JtJng parameters, diversion parameters, and inflow ny~rographs.
An Interior dralnag® analysts will be per~rrnecl to determine U~e kntenor flood stages resulting
from interior runoff under existing conditions and under ~rn~roved oondtfions with · potential
project in place. Va~ous interior Crainage Improvement alternatives will be evaluated and the
re~ommendecl plan of Imp~wernent w111 be designed In detail. Flowage easement areas will be
identified for all altemaINes. The hydrologic effort includes a correlation analysis to determine
exterk~ stages coinckle~t with various interior rainfall events end s rainfall runoff analyses to
develop interior i~flow hydrogrsphs for both historical ~ hypothetical events.
The hydraulic analysis will mute various Inflow hydrograph~ ti'trough minimum facilities as welt es
a range of piping, ponding, pumpk~g, diversion ct~annel er~ dete~tJ'on basin alternatives. Intedor
stage frequency dam will be develo~d for each sitsmetNs and submitted f~r economic
evaluation. Fea~lbillbj level designs will be beveloped for the ~le _te~___~:l plan including ouUel:, pond
and pump station details, layouts, pradiminsr'y designs of pumping etatkxls, and channel
modification dstai~, Final interior per~n~ance mutk~s will be made.
Task 12 - Development of · Rea; Estata Plan and Grou Appraisal
Reel estate studies and appraisals wifl be conducts~ by fha Fort Worl~ District. Forl Worth District
will secune Rlghts-of-Entzy ~or feasibility level s~r~eys ~ Invasligatior~. Real estate
requlroments will focus o~ issues of accel, sssements axl land acqutaifio~ as required by
proposed Improvement plans. Each selected plan (ecosystem restoration, flood contzol, etc.) will
have essocilt~l real ss~ats requirements. A gross appraisal wffi be performed to assess ve~ues
of lands, easements ~ rights-of-way far ecqulsltiO~ ~s. Acquisition maps will delineate
· e locations of req~Jired mai estate interests, ownershil~ and t~x map details. An assessment
relocations costs will be conducte~ In cc~uncfl(~ with any non-sb'UcaJra~ alternatives analysis. A
real estate plan will summarize coet~ for acquisition of requlre~ real est-ts interests for potential
pr~ect~.
Deliverables: Real sltate gross appralasl, Hght~-of,.enfl'y, ac~quleltlon maps, retocatlon
costs, and a real sltlta acqutsltlo, pMn.
9
Ta~k 13- Oe<~t~..hn~l InYesUg~onl
Ex~ting sit~ information will ~ utJl[ze~ to the e~t ~1~. O~n~ ~a~ Mil
~ ~ ~ ~et~ ~ ~in~ ~1, limpinG. ~, ~1 ~s~on and anat..
afla~s ~l ~ ~u~ ~ ~ ~ r~.
Deliverables: (3e~tiehnk:al lnve~tlgilonl rlgert ind mat~rk, I suitability de(emdnlflon.
Task 14 - Cultural
Tho wed( under thl~ task will Indude tub*teaks required for cempliance with Sectl~ 106 of the
National Historic Preservation Act of 1966. Work will Ideniffy potential sl~'t~flcant resources.
Fieklwork may consist of pedeetTlen surveys followed Dy lube testing in areas determined
to be sensitive. A geomoephologtcal evalua~on w~ be mede of mors~ and submerged areas to
determine if buried ~ horizons exit, Indk:etJog preee~ of arfl~cts. Archaeological studies will
determine eligibility of lites for bhe National Register of Hltkx~ca/Places. Recommendations will
be made to avoid ~gnlflcar~ sites, ~ mltlgetlo~ rnaem.~-as will be r ___m~Ynmanded if necessary.
Detlvarablea: Cul*~ra! re.our, es documentary research and aaese~mant~.
Task t 5 - EGoneml¢ Analyses
The basis for th-e-, analyses w~l be an economic ar~ I<x:lal ~etlne study conducted foe the
overall Elm Fork Waterthed study eras. This anmly~ts will include reviewing past studies,
con~uct~g detetled ab'ucture Invantodas and v~lua surveys, development of damage criteria, and
foeecaets ~ potantie/projects In ~ es compared to f~lcests wtthout any Improvements.
Benefit assessments will also be conducted with regard to avoided fie od insurance administrative
(FIA) costs, avoided emergency cast~, anti re~___~d malntet~nce costs, input will be provided to
develop opflrr~zetJon curves for various e~tometNas.
This task indude~ studies to ascertaIn ,~1i; benefits of prapoesd altem atlves for ecosystem
restoration and ~fl puq:mse~. For ecoey~mTt restoiiti~n, an Inor~mental coat analysis will
be conducted In conjunction with Habitat Evaluation Procedures (HEP) to opiAmlze outputs,
Detlvemble: ~)Gio-e~rmmle data
Task t S - En~lronmefltal Analyase
Environmental studies wJl Include environmental data cotlac~:m and overall evaluation aftra
anviror~mantal cttamct~ of tho study ar~a. along with _ _~.,~.__,mentation of av~dance and
minimization m'M developmanl of any mitigation and metoeat~arl reassures and all required
Nationet Enviro~mar~al Policy Act (NEPA) documentation.
Task~ Include: a literature search, r'e-a~essmant of basoilna conditions, ground trulhlng of
vegetattve cover mapping, coordha~len of regulatory I,,suas, Hablta~ Evaluation Procedures,
c, oordinat.iort with resource ager~cias and other interested parltes, dervelopmenl of restoration
alternatives, with recreeffon features and Impect~ easessmanls.
DeliYerable: EnYironmantal Appendix.
to
Tuk 17 - Preliminary Cta~gn, Q~ntlfl~ ~d Plan LJy~uta
Deolgn ~ conelat of coordlncting with Involved parties f~ ~ ~ ~d ~1~ ~
~ ~gh ~n ~. ~ ~en., ~at may I~u~ ~s~ml ~en~,
~1 ~ d~ ~ ~. ~u~ ~.t~ and ~pp~. M~a~ a~ ~ ~pams
~11 ~ ~d~. ~ ~o~ ~ at t'~' ~e, ~31 ~l~ ~an ~ ~d r~l
as~e mqu~.
Deliverable: De~lOn quantltle~ and co~ta and plan layout
Teak 18 - Fea~ibl]lt~ Rapert and I~tegretKI Environmental Impact Statement D~vol(H3ment
Thi~ task inolude~ writing, aesembling, edi~ng, typing, draffing, reviewing, reproducing and
dlstfli3ut~ng the draft and t~al feasibility rei3ofl=, Envrronmantal Impact statamant. Technical
appendices and cther related dcoumenta fo~ tranernittal to USACE higher authorities.
The feasibility rel3o~t '~11 contain '~e follo~ng
a. Main report summarizing findinga, conclusions and recommer~aflona
b. An Environmental Impact Sta~ment (ELS)
c. Technical Appen~icee (Engine~lng, Cultural Resource*,, Economics, Fon'nulatJon, Real
Estate, Colt)
d. Supporting d4x~menta indudir~ a prqect management plan
a. Reproduction Of feasibility ~
During Development of the inl~gretad ElS, the following sub-tasks are included:
a. Interim recmrt on existing environmental baseline conditions
I). Plab~a~ Evaluation ProclKlure report
c. A Fish end Wildlife Co<3~dinatJon Act Report (FWCAR)
d. Documentation Of restorafio~ plans
Preparation of scOping documents end public meetings Is covered under task 9.
It is assumed Nat 75 copies of the draft report would be initially prepared, with web-site
avallabilibj Of tl3e repotta. Approximately 100 co~le~ Of file final report would be prepared.
This task includes revision to the draft repot, El8 end tac~nlcel appendices based o~ put31ic
review commanta, Spor~o~ comments end Hea<~luarter~, USACE comments.
Dallverablea: Main feasibility report (draft and final), EI~, tachnlcel appandtoea, HEP
report, FWCAI~ re~toreflon plans.
Project Management - The Fo~t Worth District project manager, NCTCOG, Dallas and Denton
Counties, a~d t~ Partnership Cities will ahere In the responslblllt~ Of project management.
The project manager will asrve as the central pOint Of contact for this study with Headquarters,
USACE, the Sponsor, local partnem, stakeholde~ and ¢~er interested parties from the point of
initIMion of the sbJdy.
Overall management functions will Include updating the project management plan aa necessary.
In addition, the project manage' will monitor proJec~ ~c..~edules and finances, process schedule
l]
end co~t chin'S, review budget document·, and ~e ~
~ ~, O~ and ~t~ ~n~ ~ ~ P~
~u~ ~at ~1 ~ ~ P~O ~ ~ and ~
dl~. ~ m~t ~11 ~ ~u~ ~u~t ~ ~ ~1~1 ~u~,
~, ~. ~ ~ ~ ~ N ~t ~ t~n~l ~u~ ~ s~eys, ~ end
D~livmlble~: #anailement d,o~,mmnb
TlJk 20 - Ter..,hnlcal/~vlew
Technical Rev~ of varto~ antra'tn reports and eppendkT~t will be perfont~ os they are
developed. This will rr~ude wrtben doc~me~tat~q o~ comments, respo~s~ and the extem of
c~x~plianc~ with commen~s. Team member1 wfl review documents and Ind~Y~ent r~'~ew~re
will sis· review re. lit,/to ensure quality study producti.
OellvemMe: Technlr~l review d~:umenb and · ~u~l~ C~nt~l report.
T~k ~1 - Negetlatlo~ of a Draft Preoon~buctle~ Engineering and Deelgn Agreeme.t
Design A~r~nent~ with potential Spo~aor~ for completion of flnaJ design and pla~s and
speciflcatlor~. Included in this taak I· an ass®·smut of Jurlsdlcflor~ and fin·hOtel capab~ties of
potential Spormom wt~ln the E~m Fork war·rah·cl.
Deliverable: A ¢o~t ·harln~ agra·men[ for de~Ign end plan· and ap~lflc:atlon$ ,4ocumaflt~.
Task 22 - Update ~ the l~'~®~t m~magemen! pla~ far tho plan· end specifications phase
Based upcm the mmJ~ of the feasibility phase, the pr~ect management plan will be revised to
reflect constn.~tc~ c~ats baaed on sel~ed Irnpeoveme~ta,
Deliverable: A pmj~t re·ring·meat plan.
Talk 23 - W~hlegt~n Level Policy Review
This task oovere experts· for the Fort Worth District and the Sponsor for attending Technical
Review Conferences, end the revfew and processing of the draft and final feasibility req~rts to
Heackluartere, USACE.
Deliverable: Mee~l~l mlnu~$ for r~vtew confm~nce~, and miponie· to HQU~a, CE
12