take any oven-flaw 1mm swaues and dams. and may be
tens or hundndi of rneues lung. Spmadzv hunks have
rne1awer sxde dead level. and eurrrpnered or even
mmered Wazer emels [mm a dim, swaxe, ur minm
srrerrn and leaves as a nun sneer flaw duwrrslupe Spml
Is prled nphvll, pulerably in mmmds, ur removed (0
allow dcwnlull sneer flow as emu me spreader due).
manure mm

For lmgilmn nus ol Harlands, rne bink rs given
prercea by a ser-es of deadrlnel plpe uullels, each
(searing an 5 Igallon bay (xlsefl planed "an, ru wmzh
water rs eunnned by Iuw srae walls15TEER|NG
BANKS) M are lower end 0) um bay, a nu.
Dump. surpxus waree drnrnqeads an excess Nam
mnshum orsemndary smnge dun. In suen eases, me
uphill ur prunury leeder drarn xs tilled rne HEAD
“ca and has crossesudes um um flaw; nus causes
are Izvelkd plpes (0 Hood mu imo rne bays Somellmes
m. pipes are mplxed mm neyex amt-rue nus and in
uld—esubhshed ipmlderr banks, are whole nl me :uwer
up rnay be eonerereu m gnre n permanern Ieue1 spxll

FIGURE 1.2:

swans)? BANK

Wain mmuw rs curvy snl-Id w ummn lzummu m- anwnmn
mm a nu

rrnrnune m breakagp by earue ur yeruelss

Spml hnes uphill {mm Spreader banks are hes. pried
or al Ieasr broken by nrequenr upenrngs |o Illuw
downhill nvefland flow xn enrer rne dnin wrenom
carrymg srn loads

In any landscupr, a snblle and welIApIannzd
rombmaunn u; dams, drams, spreader banks, iwnles,
and aypmpflak prpes,guue~va1ves,spiu gm, "ass, or
eulyeru wIII harvest, snare, and use surplus flood ur
uverland flow waaers. mese are used to um um 52“:
vrurn sons, sprend wuer evenly over my, pu| ou|
wrldnres, and modesny ' gane land n rs a maner ol
hrs| dzcldmg on, men surveying any or an rnese
sysrerrrs, and awe an uf (unsxdgnng me lung—Dem!
elleers on me .mrnedrare Imdscapeawd rne suns

All earrnworks (an be regarded as REHABILITIVE
nnu remedrax .1 Hrs, reuxaee saned and eroded lands

perennra1 bruwse or [0155 They earr be ssen as

Damcmc and expluunrrye u used m xrrigilt my.
ware-edemand my urkr luteme/alhlla) m drylands,
u: an of! flow m dry areas, or lo run wurer lur
unessunizl uses «0 large urban eenrres devoled m
lawns and car washes.

 

 

7.4

REDUCTION OF WATER USED IN
SEWAGE SYSTEMS

In canes, wnu is (him-(“Med and [ed baek mm me
sysrern. surnenmes mixed wnh seawarer 0r ‘lmled'
wasre warer Io gwe ir chat my rasre so Iypiral 04, eg
Las Palmas m m. Canary Islands Surplus wwagz,

 

FIE"!!! 1.2!

sanwmc 0f IRRIGAHUN ms

Lawn m manna rmmnn bay: smum um uueea mu In W m
mmn Mwlnwlwmmn Scum hour. van

 

 

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W rm pal

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mm as rem ms»
remre we 3;“
w (.e use“:

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To WAN M1! 0?? KW

mu ma: ‘4 PAD!)

 

 

170