106 lines
3.1 KiB
Plaintext
106 lines
3.1 KiB
Plaintext
permds lur dnmeslre use or Urlganun TM laller
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slorages, lhnmmm, need le be earemlly deslgned wnln
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respecr In much lacuna ns wiely. wakr harvesting, lolal
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landseape layrnal, eullel syslems dvawqiuwn, and
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placemenl u‘lihve kl lne usage area (prelrmbly
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pmvldlng gravlly llanl
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A separale mkgnrv ol waler slenges, akm m fields
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[or cm}? or blvwse pmdnenan. are mow ponds or we!
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lerraees emaled speclllcally [Dr lmk'rrmp Lvegdahon or
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mud Polymlmml syslems nl aquatic ammal spesresl
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open—warer llree wa|rr snrlaee areal sloragzs are
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ml appmpnnle nr lnrnnd elnnnles, where llre pelennal
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lar eviporaliwn .s exceeded by average annual mmlall
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mere is a vnry real danger llrar sunllar slomges emaled
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.n and lo subhumid amas wrll llase adverse elfecls, as
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evapnralmn Irum epen waler slarages rnevnamy
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earneenlrales drsselved sans firstly, snel. Sally waler
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ean alleel ammal health. Seeenaly. lhe lncvnablc
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seepage 1mm earrl. dams (in and does ereale areas 0!
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salled or enllapsed sdrls downhlll lmm men slamges
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And in me ease 0! large barner dams, sa lime waler
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may be allowed ls. aypass rnem m flood llme lnar
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Igrkuhurll sods, pmdurllve lakes, and esnranes may
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lose mare produelwe capacfly by deprwalren a!
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flushrwakr and slll dapdsns man can he made up lal
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glut" msll by imgallon denved lmm suzh lakes
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Dryland smug: snalemes are drsenssed .n chapler
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11, mm l have |0 say MN Is span/really addressed la
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humldamxs and small dams unless olnerwrse noled
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Ban)! dams or wens whm Nulnlng vulls are a m
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no leell high er less, and whlch have a large or
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overeslzed alable splllway, are no lnreal |u llle er
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properw ll well—made They need nal drsplaee
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papnlalmns, “up lluw .n slrearns, ereare neam.
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problems, l.ll wilh sill, m bkxk llslr mlgmuons ln lasl,
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dam: or :Iolagu made :lnvwhuc ml as ban-lens an
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slmamsrlix‘ively add leslrearn flaw ln me long lerm
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|aw earner dams nl H m «w leell my. ean assnl
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slream exygenalmn, proud: permanenl pools, be
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ulepped' [0 allow ladders ar bypasses and also
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pmvlde \Mal sms ler modesl power genrmhnm walle
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almosl all madern assessmenls wuuld eondernn or ban
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largeseale dams land Iarglysnle power sellemesl on
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are mean: el pas: and «)nllnumg llasco), a saber
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assessmenl al small warer arorages shows muluplz
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beeems
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elven |he range or excellenl leals an small dams
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lanen availabk lnrrn leeal waler aullmnnes, and by
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mall order 1mm good lawksleresl, l have llaerelare
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avolded speellre and well—publisned ednslrueuon
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drunk, and have new elaborated more all me rypes,
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plaeemenl, links la and lmm, and luncnon of small
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dams in rlle lanal landseape. Yeomans «pus mm,
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ma) has slaled lhal h: bellzvei llral .l lmm “145% 0!
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a normal, lnnmd, lowland er loam I landseape were
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ruled wllh small elr|h slurages, floods and dmngrn or
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me lllrear eonld be allmmaaed
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Nal all landseapes ean cwst1lfenlvely slme uns
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5‘ nan,
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ample
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mama M;
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m {MIPWTr-N
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w a» yam-ma
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mummrugm
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Luau use Mms
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A B c rm was P
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‘Mws’ SW5)‘|‘ NW 1 I?" W lwmm’d M
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W W Ms re as W 1 “'5
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was was" .
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W limpuzmu
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0ng slaves «no: mr- mum was
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FIEHIE 7a! a“ MIT
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lluMln uunswz DAM MCEMENI 0M SLOPE
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Sawmill: dl mm Shaw: mm run-u lo slab! lauslsr and
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flmlllflfli
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157
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