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<br />5-1(,["15 U/AS II
<br />j?vMJa;5 jJ~j)/4Jfit1I'f
<br />.tl;.. .~ ,7' '1,)/,5 J(JIE
<br />Acres
<br />
<br />IV-13
<br />Watershe': t( T State
<br />
<br />. " {../.A/.II ~
<br />/:e5?ff - r4lo/' Condition
<br />
<br />I( (('Qd,.7/, 7(J
<br />d;trfM,oor.,{
<br />PSIAC - 1968
<br />
<br />SiJbwatersbed
<br />
<br />Name
<br />
<br />7PA;?1 -(M/I?
<br />b -;,I t -ytJ
<br />
<br />Date
<br />
<br />':'.5
<br />
<br />/).
<br />
<br /> , 111(1 " SEDIMENT YIELD FACTOR RATING
<br />SURF ACE GEOLOGY SOILS CLIMATE RUNOFF TOPOGRAPHY
<br /> (.) (b) (c) (d) (e)
<br /> (10) (10) (10) (10) (20)
<br />.. Marine shale. and,.. :9fine texturedj eaai-. .. Storm. of several a. Hl&:b p.ak nows per .. St.~ upland. slopes
<br /> tated mudatan" aDd 1, dispenaed; ,.u... day.' duration. with unit ... (in exeess of 30'!.)
<br /> sUt8tonel alka1lll.; b1eh .brink. abort period. of in. b. LlU'J;e volume of flow b. HiCh relief. UtUe 0'
<br /> 9 :1.e11 characteriltics tenae rainfall per WLit are. no floodplain devel.
<br /> b SJ.ncle &Ria sUts and. ~. Frequent intense con~ opment
<br /> fine Iud. vective storms
<br /> c. Freeze-thaw 00"'''
<br /> ....c.
<br /> (5) (5) (5) (5) (10)
<br />.. Rocks of medium. 10 Medium textured soil I. Storms of moderate o. Moderate peak flo... a. Moderate upland
<br /> hardne.. b. Occ..ioaal rbck frac- f9 :taUoll and intensity per u.nit are. slopes (less than 20":"0)
<br />b. Moderately weathered m.entl b Infrequent convective b. Moderate volume of b. Moderate ran or flood-
<br />c. Mod.utely fractured e. Caliche layera .tOftftrl~_ID " now per~ unit area plain development
<br /> (0) (0) (0) " (0) (0)
<br />.. Ma.sive, bard. forma- .. Hlab perceMace of .. Hwnid cUmate witb a. Low peak flows pe' a. Gentle upland slopes
<br /> Uoas rock (r8lMeatl ra.infaU of low inten... unit.rea (less than 5%)
<br /> b. Aggregated Clay. sity b. Low volume of runoff b. Extensive alluvial
<br /> c. Rich in orawc matter b. Precipitation in fonn pet' unit area plains
<br /> of snow c. Rare runoff events
<br /> c. Arid c:limate. low ia... - c:
<br /> tensity storms ,/:-:/(h-
<br /> tn'-+- d. Arid climate; ,are
<br /> c:onvective storms
<br />Factor I 0 'T s- ':1 A'
<br />value \. -.J
<br /> GROUND COVER LAND USE UPLAND EROSION CHANNEL EROSION AND
<br /> SEDIMENT TRANSPORT
<br /> <0 (c) (h) (i)
<br /> (10) (10) (25) (25)
<br />Ground cover does not oz. a. More than SO'J'o cultivated a. More tban SO'!. of th. a. Eroding bank. continua
<br />coed 20% b. Almost all of area iaten... area characterized by rill ously or at frequent in.
<br />a. Velet.tion sparae; Uttlo sively crazed abd ll"lly 0' landslide tervals with large depths
<br /> or no Utter c. All of ...a recently erosion and long flow duration
<br />b. No rock in .u.rf~e .0U burned b. Active headcuts and de...
<br /> f(J~ r/;{V graail1iOn 1ft tributary
<br /> c. r,(J 7, ^ channels -
<br /> /c /?:/o j~- " '1k-J <....-(',J
<br /> ,--,-".' . /k ,./1/1;-
<br /> (0) (0) (10) (10)
<br />Cover not exceedl.D& 40% o. Less than 2s-J'0 cultivated L About 2S~0 of th. .... a. Moderate flow depths,
<br />a. Noticeable Utter b. 50'1'. 0' leas recently characteriz:ed by rill and medium. now duration
<br />b. If trees p....llt UDd.r- logced Cully orland.lide erosion witb occasionally eroding
<br /> Itory not weU developed c. Less thaa SO'!. lJrtensive- b. Wind erosion with depo. banks or bed
<br />'.<(Pl I .5 ~ ly lIfNed sition in stream channels
<br /> " (. { do Ordinuy roMl and other J;,.6 ~ y; I 'k
<br /> ~..., c"'; fY"> ~
<br /> ';r R. <S> COMtrucUoa. (
<br />'''1','' 0 /. I cr <J
<br />v (-10) (-10) (0) / ";"(J' j" ''''~I''.~ ~~ (0)
<br />a. Area completely protect- o. No cultivatioa L No apparent .Iano of a. Wide shallow channels
<br /> .d by "eptaUon" ,gek b. No reeent 10ltinC erosion with flat gradients and
<br /> fracments, Utter c. LQw intensUy craziDC short flow duration
<br />b. Little opportlUllty fo, II.J Ir1 ;!'r(J /7 tJ.4- b. Channels in massive
<br /> r.Wall to reach efQclible 'A.!........- iJ1,1 rock, 1aree boulders, or
<br /> material , , well vegetated
<br /> c. -Artificially controlled
<br /> channels
<br />Factor I )C r 'J /
<br />value /1 , .-
<br /> I Subtotal (a) - (a) 3!J Subtotal (b) - (I) , r ! :~~~NLG F-F.. = .: f _ ac.ft.!... mi./y,.
<br /> ~,/ .;..J
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<br />(Instrouctions on rrllrrsr)
<br />;ii, Tr .. -J II Y tos~ c~~
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<br />r.,..//,:t -
<br />
<br />~ 17 T,'ff'
<br />);'1".
<br />
<br />,;;J -;4/ 'VI.S Yet,
<br />S~EET Jl OF 12-
<br />
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<br />A~ 6,,('1 C.
<br />
<br />2'57",
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