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<br />35206 Federal Register I Vol. 52. No, 180 I Thursday. Septembet'i7;:1987,I'J-RUle's"andIRegulatJ6iis1~~--'
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<br />Page~~'Y~I~eJ ~o;tu;ili:~~~;~Fpl~~lh~J~~Jj~~~~:~~
<br />used an these equations are COl1lam~-ln~;otm8:lntalne1iglbIUi9for USD,~~pm ,..;;
<br />'the SCS field office i~C8~ gurde"an'dqc:_',b~~,e~lS~,;.~~~~~~ <;
<br />the references which lire' 8 part of the 101Ol1c\,{c} cFseF?i'tf~tst:icts 8'p~ve or1:.:__, " .
<br />guide..st".>'!:,";1\"'c~lt"i'fJ~~:~ disaPPrOveconserviitiSiiplana C)r -'. .~~.~ ' .
<br />{bl A soil map unit subjecllo ~r~ conser-vati'o'1i !yste1ns"afted~CS 5~,,,",,
<br />si~cant erosion b~ either wat~r-or.by';, dete~~rll:~:t~.~t the' pl.8;ni;cii'-~y.~.,!m...!;'~'1t~_
<br />wmd shall be detennlned to be hIghly"""'}.' conform to iJie S~ field office leCbmcal
<br />erodible if either the RKLS/T or the ~IC':! guide:'H a.~C?fi~:e~a:t{on~d!~.t~~\~~~~'~'l1J,': -
<br />T "alue for the map unit equals or ~ ,.~.....!1 without due cause: to ayt.ona request. ,'>0 .
<br />exceeds 8, . - '.""'\~ V for conservation plan' or'com~et"'iation'ila~.
<br />lc) Whenever a soil map unit :.;vZ?l1f~ system a'pproval within'4S 'days7:6r Irno~i ,"
<br />description -contains a range' ofa slcipe:~' conservation district exists, SCS will.~t9~,
<br />length and steepness characteristics that.:' appro...e or dis'apptoi,te;a~- iipproprlate'.;~::'_:;-i::t
<br />produce a range Qf 1.5 values which.'~,.:".'~ the conservation plan or s)'stein'.iri'~:r-~,
<br />result in RKlS/T quotients both abo;,'e' , questiori:'~,!;~ Q.!liH.::i~~~~~'~lt~~,
<br />and below B,the' soil map unit will be p:~1 .' {d} A p:rsi)o i~ considered io be'f7 ~'tfir.r...-' '~...
<br />~ ente~.d. on ~~ list of.highly. erO~~bl~E.f- acti~ely_ ~riplring~a'con;ervi~~n~p~~~~
<br />map llnlts as potenl1ally hIghly ~. ~ t. for purposes.of 1 12.5(b) if the plan ls~-....
<br />erodible,"The final determination off!1fc" being applied according to 'thi schedule~,'
<br />erodibility ror an individual.ri~ld.~ ~~ specified in' .tlie 'plan 'B;'nd the"applied~r:
<br />containing these soil map uni~:.';:.~K practiCes 'are properly 'operated and'?:r._ .
<br />delineations ....ill be made b)' arlon'site~ maintained:1t is' the' responsibility ofthe~
<br />inwstigation. ,i.!l'. ~ ~ ,-' ~t'L_ person to: l}-~i~~;.';I.f~\f'~:....~lV~~)-:;;.(' ~
<br />112.22 HIghly rrodlble field determination_"!' (1) Annually certify that the-.;=:~~~ ~::;. .
<br />criteria, conservation plan is being activelY:t.: '_ or: .
<br />.pplied afler January 1. 1990. and _-',~~~'.. - _ -,
<br />(a) Highl)' erodible land shall be ".' -, .. -'''.
<br />considered to be predominanl on a field (2] Arrange fora revision ofthe~~~,:_-:., -
<br />if either. ' - , conservationplanwithSCS.ifchanges~~-.,_
<br />-' . (1}33.33 percent or more-ofthe'total are made)n land use.,U?P rota~?n.or';~'~~:-3
<br />~ 12.2t Identification of highly erodible - field acreage is identified as soil map, manage~~nl. consen. anon prac.tJc~~,,!r,..,,_'!. - .
<br />lands crtterlL --. . th I h d" r t. ._,,,, ~c
<br />, _._.' ~...' ..~. _: R ,_oj' ... units which are highly .erodible;or:;'~.Jl;, ~n e o~81n.~ ~c :.. ~:,o~~.r:E..',~~'~i~ .
<br />. fa) Soil map 'units and an erodibility. 12}5O or more acres In such field are'~) mstalla~oE'-',_, ,';~--.--:-;'J... T .'-t'_ q.l:J~ '.
<br />index will be used as the basis-for' ., ,.~. identified as soil ma;! units which are::-'o~: (e)Persons.who are.~dv!rs~ly.j ~.~. '.J
<br />identifying highly erodible land. The, ~ ;; highly erodible,' ':r,'T. ::;":;J,. ..:'. ~,): :'. t;.._~ affected by the detennlIlatlOns made. ;.~:i ".;oJ.-
<br />erodibility index for a soil is determined {b] A person mal' request the-" '-' f. unde.r this subpart.and believe that !~~::':t '
<br />by di\'iding the potentialaverClge annual modification of field boundaries for the- requIrements of thIS subpart were. t..:.... ":_'
<br />rate of erosion for each soil bl its purpose of excluding highl}' erodible improperly applied may appeal the':.....;:t.'.~ ,
<br />predetermined soil loss tolerance {T} land from a field. Such a request must ," decision to SCS under 112.12. '. .,J (:0.1'~'~-
<br />\'alue. The T value represents Ihe be submitted to. and is subject to the -~. . "j'_-1
<br />maximum annual ~te of soil :rosion !..: approval of. AScs." ,.. u<-,,'il.;!.'. . 'I-,l . Sub~art C-~etl.and ~ons::~aUon~f:-. j!.:
<br />that could occur Without causmg a ... (oj Small~areas of nonciopland'within'";! 11230 50S'.'... _'''''I~''' t..... .:::0 ~" l~iiN,-
<br />d I . I I d 0, 't -' - .,.. re!llpon.......' e. re-gar ng-'hrj,~'l
<br />ec me m 008. erm pro UC,,\'I y. or adjacent to the boundaries of existing. wetlands.' ',.i--.", r' '. ,;...
<br />11) The potential average annual rate ~ h ghl rod'b1 ' . fi ld . h' . 1<<0 iG ,''' :.. ',;00,,' .....1:1 ~1~..,.~1I.~'"
<br />r h d II ..' t' d b~' I )' e I e crop Ie s suc as..... " In carrying out the provisions of this'....
<br />o s eet ~n n eroSIOn IS es Imate Y.~:, abandoned fannsteads, areas aroundit;;l' part. SCS shall.: _...~" ~ .......0 ..:...~
<br />mulhp1ymg the followrng factors of the 110~ filled or Capped wens. rock piles trees'* .' ,I' .... ... ~f".-,.-=""';' :~i
<br />Universal Soil Loss Equation [USLEJ'; . - b h- h--'--' . - d ~....~'znn' (a) Make available 10 the pubhca'Jl1l'~
<br />.,- II .'d'- IT ~......_.:.JW8 or rus ..... IUl are converte to -.' -,- 'p - d tit orh dri il '.
<br />.~{')Rainfa an nmo {Rl-.:....;.'1..>_.~ ..il.'a...~........d..-d "7'''-''tli''r..{r1 p.......e cou!lY,ls y CIO map..~
<br />.. .-'J. . --,.. . ."I...............-...-.cropan areconSl ere to meet lea":'1,_, t ,--,-,--. b d' tli N " I
<br />"lib':;';;' {li]Tbed~etowhichthesail-_j~""F"'. -..--'- 'I-II -:( :-"Itli-n" ~'~.l1n!- S, W1llUllS ase upon e a.ona
<br />. - .'. __'. -;;;.;;;,;~,- --._~ag..,reqUU'f!menlO 1%..5;c, I O'a~_"M.. LisCofH dricSolls;:.:...-r.crT.=<;:".:tIli~~_:
<br />"''Y'''' !!;S~~ts W,~le!~!II~n fl<).~a~o1i!:;:''"-l~~r:includea iil'-aWapproved'cOn$etvalion~ y '. .. ';c. ...~_~-;::r;;a.
<br />~ ...~~ (lil) The function {LS). .....hlcn mchidesjJ"- 1'" f~' t11....-U li-ghl,'1 "rOd'bl .ofi ~d...!l't ~{b) Ma~nlalIl a list ofhydrophyhC.~'i~
<br />l;.~~> ~h'e.effects'of sloPilenglh-ILran~~~-4':-".l~'~~~~~'-~P!l~}~'a v~getation' den_ve~ frOm the ~8:ti?nal~r _
<br />~ :.1' .s(eepnessIS).~r:)QU~~.~t&rt f12-23.C~alionp~iIIld~, , ~I, Li~tofPlanISpeClesTh~t.Qccu:IOJ~L..~ ~
<br />~-:i:'..,';:""~(Z) The pol~ntial.average'afl!luid...~te.~'~on.~~.t~ ly~~~s.~~J!q,.t:_~-f~~ ':-}\et]ands;l~~~~f\~:
<br />~:d of wind erosion'is estimated byj.)$q~ . '.: (a) A Conservation plan or a~T:t..1S:t"1>"', (c) Consult WIth the Fish and \Vlldhfe~
<br />" "_i:...nlultiplying the fo!lowing factors 'of the:'9. conseryation- system'developf!.d' for the'~. Se:vice.?~ detennin8tionScifMt.'lt~,?-;~;~~
<br />" ,. Wind ErosionEquation,(WEQ): Climatic d purposes of' 12.5[b)will be based'uponr.1 elCemptJons made under' 12..5(d)(1) andta.
<br />.~.,~ S. characlerir.alion of windspeed andttn::m::i: the SCS field office' teChnIcal guide.~i.t};:-': (dJ{Z) and on mailers relating to the,?!%4'A
<br />\io-- ?,surface soilm,?islure (C) and' the degree~:-!lddris5in'g cOnsiderations.of economic~~ identificatio~ ofwe~~n'!-~~~.t;.}J
<br />~... $.Io'which soil tesnts wlnd'erosion (I)!.ij:ii!l and technical feasibility'and other~.,-__.;. (d) Oversee'9.1e4evelopmenfand~. ..
<br />-7.'3)_ ThiU~LE is ~xplained W~th~U.s. ~"',i_~elatl~d.racto~;~~ l\-1"~q:~1~ appli~tion of criteri!_to identlry.~y'drIc~'.
<br />.to- Department of AgnCulture HaniftiOO1c',~~ ~_ (b) persons .....ho require SCS ~U'~~7' . sods m consultation With'\}uiNationalRiq:
<br />":.~.~, 537,; ','fTedicting Rainfall F.rosiori~1~:-'k'- assi~tance f~r the deyelopmimt of.a~...~.j Tecbni,~al Comn:itt;~ Co,r Hy~c.Solls.~
<br />\ ~sses.;.:rheWE,Qisexpla.l;nedlnthe~.;.-conser:'f~ti~n:planor.~eln~ta.llat~o.nofa--O and -. ,~c "f': -', \.~~~,.,~~~
<br />:.. ~:paperby::Woodiurto N-?:and~F:H.t..,dJtjtJ~~~~.~rvaUo.:'_s}',5~ett\'8r.e.e~urag~d_!.?~' .- Ie}. Consult '^:'-~ 1}1,~ ~sh an~.yv~~iCe.:1
<br />;' .;-':;:ASiddaw8~1~:;A..\":lnd ~slbn~~. requ~st ~!s.as!lstaf!~ ~eU i!l_~dva~ce~ ~:.e. an~ o~el'5lp-de.v~~:1opmg llie~ .
<br />. ~ TEquation.....&lIl~eoce Scki~l)'bf~.-~lofdeadlme~d~l~i for.co1?'plIance:~ ~alional List ofP~a.n! ~~i~~..~~tg.~~
<br />"ll.:.l;:: America Proceeding!; Vol:'29', No"5~~:\f\'" otherWise-the peTSon may not be able 10.,1. m Wetlands and In providing guldance!f
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<br />., accordance with the administraUve 'lr.,.':' .:
<br />~;, .;;...-appeal procedures of Ihe agency which:-..:~
<br />rendered such delermination. A8ency~;~
<br />appeal procedures. are ~I?tained in the,t .
<br />Code of Federal Regulations a5 follows': '-
<br />ASCS, 7 erR Part 7M: SCS. 7 CFR ParI I
<br />614; FmHA, 7 CFR Part 1900. Subpart R-
<br />and FCIC, 7 CFR 400.90. ."-
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<br />Subpart B-Highly Erodible Land
<br />Conservation
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<br />~ 12.20 SCS responsibilities reg.ercMg
<br />highly erodible land. ,. '
<br />In implementing th~ provisions of Ihis
<br />part. SCS shalL 10 the extent
<br />practicable: ._ .
<br />(a) DeHilop'~nd roainla'in crlter'ia for
<br />identifll'inghighlY erodible landi;'
<br />lb) Prepare and make available.to the
<br />publidists of highly erO~~bhi.'!.C?i; map
<br />units;' ". ....' .u__
<br />tcl Make soil surveys for pUrPoses'or"
<br />identifying bighly erodible land; and
<br />(d] !W\'iue technical fluidance to
<br />conservation districts which appro\'e
<br />conservation plans and sll'stems, in
<br />consultation with local county ASC
<br />commillees and SCS. far the purposes of
<br />this pClrt
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