HomeMy WebLinkAboutWTR2700422(6) W-422 S RINGBROOK SPRINGS UPGRADING PROJECT WTR-9 1
#6B Maps & Design Notes
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•NARRATi47: STATfNf:h'f
tiLrl n;;i,rook 5 rtn s These springs, located four miles south of th, t it,
,:o-c nv, have cen used continuously since 1909 to supply water to the
I :t; ill Renton. The water is cold, clear, and of Rood quality, the flow
from natural springs in coarse gravel strata is collected in an infiltrtt ,:a•.
.t,- of perforated concrete pipe laid in artificially placed gravel. t
.,, nl:i, trinsatssfon pipeline, inlet Elevation 206 USCS datum, take. till,
.,%, : '•y ;,rivlty to Talhul 4escrvoirs. the supply is metered at a dllor-
intt,,r huuce which has a Wallace and Tiernan gas chlorinator.
1 ul_j I. I 1 ,pl,'.,a lm-Acly2 million gallons par day fmgdf is obtained
e,•.,n. till, source', but falls to 1,75 or 1.50 mild in late August and Septtmhrr.
1 q Ih. 1A Ill ,. ,ablr of supplying more water as will be discussed Liter.
tin I .t, pro;•utiv h.t. ;1 water right at Springbrook of Z.3 cvbi, feet per
�r+ eel 1, 1'+1 ••,nlra lcnf to only 1.49 mgd-
+i t!,. •, ..,nrvc, natural springs flow out of a coarse graccl
-1AII oink of a deep ravine over a distancu of elrtlut tub
r:s are diverted into in artificially placed gr:rv'vl bed .
,n r> in I depth of about 2 feu• an infiltration srstce, of
A it pipeti Laid behind a cewicrc,c w:,ll with sheltie foutuf;,
to a cun+rete vault in flit gouvi•l from which a gnrlty
u,..�., I ,t.I <.I .vw, line real., to nalbot Reservoirs. 1 .mall dam ha
ern tease ru.t,el art a si f Rhf lc lower elevotion from which an abovvground
conmwts to the 20 Inch transmi.snaun line at an elevation
wb,rh p, I,•rf w o cr to flow b. gravity to Talbot Reservoirs.
1 tame r I,ia at lower beet impounds additional waive which is prewently
n,.t ❑,0•,1 Inr ,ul',ply. it env r„ v a pump lifted w.n,'r into the pipeline
slow 1„try till millet spring, was lr+s thin ,he J,mand, fhts pup
br• „ ... i. .•.,ri nt the concrete pump house remains.
I'„ , law Irom +pr:ngbrook Itas a seasenaI varier ion which indicates that +r
derived from nuw melting oil file wc3trra slopes of tht
I'•,� Is contlrmcd M' it, low temperature of 4S degrees tnhrridu'it again-t rn,
u ,;n•,'h to 56 degrees fahrenhc•it temperatures of the Cedar River wet, ,,
rn „ill,rvrt soiree of the t.iberty hark wel is.
I ,a cal and horiruntal vxtunt of the .oarsa' gr:vet stratum which
,,, , the ipringhrook water is unknown. fhc general appearance of tlt
-d -.Trott,, ,lid ulbcr sUlf+cc sign` tdi,ate that the individual ,i l,a, .1
t ,:Awl aad gr.,tel h vv been con., :rably disturbed and fine be
-�1 Macro•.. field rtNcstigatimt indicates that them may be a 1'ros,,r,
„ ...I wh,,!k ran b, dovt•luped to good use by vertical drilling to
r.:d•Ir•. , on eff,,:tl an ert,,ian well, the yield from which would flow t„
, . t
- ��,',• :,�, ,Lai,�t5 of the gentull it:l lty ,
.L -,.,r, f.r,1. 1 :•:t' ,.I Ito:rCaSrd amount of wat(T :1161•.!•. Ic '•q'
. Iuu. Iran ,.curium a ails ll ens, the lowest caet .out,, v
-i•, ' bilk) ...,ter ul till -Irl,t is _untinucd dcvvlopment of the Spnngb:O,,
S,.,,r, .
111 rr,i,, ol,p,rt ,n 1lu,x by CHZ.4-Ibil has omtlu,ed a program of
q Arz.nt •,i the ;j,r.ngI,rumk Springs Source. ❑ori:ontal borings wen �^
1•,e8 fnllawrag the' recommendations of Clll_4-1fill.
vtf - ittWd,'i ,n chi, first stage request now pending will I.,,
I, It hull, eel llluu=c, pumps and appurtenances, enlarged and tmpiw•.J
:•r, l�raf rim 9.11 lerit., clean-up and pollution control in water shed
•a,: It.,p„ imp n>v r..ents are >chedulyd in 1919 - 19s0 and include a
" a.11. st.ntd 1, 1,,- .told additional site at7uisitiun,
•rGmt 1,ortlon till, project well br control of steno w.rtcrs. r.
A,,n u1 lO' a '.h.,;ar w.,ah-nut of the springbrouk SI',rings water o1sri-
1':.. ,nil It rat;owl gal leers, washing mud and debris into the
„L
.rI 2k t ,.•r, tro'.tnd the Iamcdiate arc., of the spritigs iz
Ir. t - nui,l future disasters, and will n'oid pollution from up
-to-fie: dive loin•its
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