HomeMy WebLinkAboutEKLUTNA WEST Water System Information
November 27 ].972
Greater tnchora?;e \rea Borou~;h
Dept. of Environmental tIealth
JZoO Tudor Road, Pouch 6-650
Anchora2;e, Alaska 99502
Attn: Roll Strickland
Assistant Director
Subject: D::a;-n, Eklutna Hei~7hts,
Eklutnn East & ~k..utm
':?est Water System
;)oat- lb.'. Strick! '.n,!:
Znc]os'.,d ple~::'e f;~:2 the ":ks Built" plan ,und yrofile drawings for the
water system :~ervin; the above mentioned suf:,iivisicns.
Sincerely
I~UI,I,B"22G & ..~oOCI .... ~,'~
$~m~r 14, 1'J7~
4176 ~la~es Roa~i
A~chorage, Alas[a 99504
Su~ec[: ~Ler 1t~e extension to serve Eklu~na ~e[t Subdivision
ruviuv~, we ~i~d that t~use plan~ m~et ~tth all conditions ~tth
w~ich this Dep~rtme~t ts conc~ed~ providing the following
1. ~e ~us'L be provtdud tnformattm~ showing that the
~ell i~) Dauri Subdivision has sufficient volume
s~ora~c' cap~city to allow for this extension. We have h~ve
rece~Lly ~co~c: co~)cer~ed that the ~ell Iqay not
~i~e capoci'~Y to serve ~his ~)ew section and that the
servic~ to t,esu lo:s s,ould ~.~it until th~ second well..
as ~ropusc~. has bc.~., co~i}lc~ted a~d tied i~to th~ system
We ~ill ~'~o~ ~.jiL,~uld a)~proval Lo cm)struct this seg~rtt of ti~e
w~Cer sysLei~), but will ~xl}ect to receive the t~)formation listed
~bovc ~ a ~:lme w,en the as-built engineering plans are submitted.
W~ ~ould also ~dvise that this department will not approve h~me
cons':ructton or utilization of this water syste:~ until the above
t~for)~iatton nas b~en supplied ai'~d is s))o~ln to be satisfactory.
Should you h~ve any questio~)~ regardt~mg our review of thes(> plans.
please co, tact ti'~e undersigned.
Si~.curely.
Roll Strtcklan~
Chief Sant ~art,n
cc: Kyle J. Cherry
Alaska State Dept. of ;_Jtvironi)~e)ltal Con6ervatton
WATE~ SYSTE/~I
~or
EIfLUTNA HEIGHTS ~UBDIVI$ION
Kullberg ~ Associates
Anchorage, Alaska
August 1971
IrULLB~::[;q e: ,'!SSOCIATES
4176 James Rd
Anehor'n.o:e,
Ph 333-5913 or 277-3876
ENGINEERING REPORT
Water System for:
DAWN SUBDIViSiON Lots - 101 thru 112
E~fI.UTXA IIEIGHTS 3UEDIVISION
Blk 3 Lots 1 thru'15
Elk 4 " 1 " 9
Blk 5 " 1 " 8
GENER2L
As indicated on the design drawings, the proposed system will serve,
or potentially serve, 12 lots in the Dawn Subdivision and 32 lots in
the ~[lutna Heights Subdivision° Estimated ultimate capacity assumes
lots 1 thru 8, blk ~, ~[lutna Heights Subdivision expanded into 24
additionml residential units. Total residential units to be served
would %hn total OS. No industrial activity is anticipated in the
~rea.
Capacity of the system is based on the following Criteria:
Maximum number of lots served .................... 68
Consumption:
Assume 4 persons/family/lot
Further, assume 100 gal/person/family/day
4 x 100 x ~8 ............................ 27,200 gpd
or 20 gpm
Peak requirement is factor of 2.5 or 50 gpm
~ATER SOURCE
The terrain is characterized by short rolling hills covered by a
dense stand of birch. Overburden measures 6" to ].2" deep and is
underlain by a glacier till of an unknown depth. There are no
permafrost conditions within the pro3ect area.
The source of development is a proposed 8" cased well (located as
shown on the plans) enclosed in a composite block-frame building.,
The well casing will extend above the finished floor to preclude
contamination from surface sources.
Residences adjacent to the project area rely on wells for their
domestic water supply. The acquifers within this area have proven
adequate in producing water suitable for domestic utilization.
The nearest existing source of possible contamination lies approx-
imately 900' directly west of the proposed well location. No
- 1 -
other public waler ~vste:'~ exi:~t.s 5n the )~..,.ediate area (there 5s a
public fountain at Mirror l;d{e camp,~;round approximately one-half
mile to the north.
Purification measures are not anticipated; hey:ever, they can be
readily incorpo~'ated should quality tests so warrant.
The distribution lines (approx 3400 lin ft) will consist of Class
150, 6" ca.~t iron pipe. Valves, tees, a~d other appurtenances
will comply with City of Anchorare, STAND:\RD CCNSTRUCTION SPECI-
FICATIONS-FC.".'. ~.¥ATMR SYSTEb~S, fo~- material quality control. A
minimum of 10' nf cover will be required over all distribution
lines to safeguard the ~,ystem from freezing. Storage will consist
of a 2000 gal pressure tank with operating pressure ranges from
35-60 psi. The f, ar~k will be complemented with a submersible pump
rated at 50 gpm, minimum, with a discharp;e pressure capability of
at least 60 psi. Service connections will consist of corporation
stops at the main, curb stops with boxes at the property lines,
and $/4" type K copper connections between stops.
Fire protection has not been provided under the proposed system.
However, provision is made for future hydrant connections-if, and
when, the system is integrated into a area-wide service which can
meet fire flow demands.
COST ESTI3IATE
Construction costs for ali materials furnished and installed are
as fol.lo~s:
Well I~ouse 12 x 16 .................
Pressure Tank 2000 gal ..............
Pump ...................... ~ ..........
Well House Appurtenances .............
Electrical (includes heaters) .......
Well w/8" casing .....................
6" CIP S400 lin ft @ 7.50/ft
6" Valves & Boxes 9 @ 250
Service Connections 35 (approx) @ 210
6" Tees & Plugs ---~ .................
sub-total
Contingency 10~
2300
900
650
~oo
6{o
2400
2250
7350
4O0
42990
4300
Total Project Cost $ 47290
}faintenance and operating costs are estimated at $ 740 per year.
I{UIL,~tNG 8~ ,\SSOC.IATES
4176 Jam,.,s Nd
Anchoraffe, Alaska
Ph $35-59]5 or 277-~76
DAWN
WATER SYSTEM CONSTRUCTION
SPEC ] F I CAT IONS
for
& EKLUTNA HEIGHTS SUBDIVISIONS
All materials shall be of types shown on the plans or as contained
in these specifications. Ail workmanship shall be according to good
practices of each trade. Safety precautions shall be observed to
prevent hazards to property, life, materials and equipment. The
site shall be kept freeof accumulations of trash or debris from the
work. Upcn comp]e!inn of construction the site shall be left in
a neat and clean dondition, graded to drain to established channels°
II LOCATION AND SCOPE
All proposed work is within the Dawn and ~klutna Height~ Subdivisions
located in the S~{, Section 3, T15N, R1W, Seward Meridian, Alaska,
and is more particularly located in the design drawings. City of
Anchora~e detalia o? thruat b]ockn, valve~ ~nd boxes, bleeders, and
water s~rvice connections are attached to, and are a part of, these
specifications. The wo~{ covered by these specifications consists
of the installation of water mains, valves a~d boxes~ service con-
nections and all appurtenant items a~ shown on the design drawings
which are hereby made a part of these specifications.
III
WATER SYSTEM
The specifications for the water system to be constructed shal. 1 be
the CITY OF ANCHORAGE GENEP~%.L PROVISIONS, STANDARD CONSTRUCTION
.SPECI,~ICATION$, AND STANDARD DETAILS~ which are hereby made a part
of th~se documents.
:"_ :l/~" HOS;.-' CO,,#~ECr~ONS .-
I"- ~ I/a".?UMPER CQ//AfECTOt~ ~i~X"-~L
C.I. VALVE BOX · ,~
GROUT/D~ '
6'HYDRANT
COt~:NECTING
PIECE I$, .
MECH.
dOINTS
i 6"GATB --
STEEL TIE ROD. ONE ~DRAIN
HYDRANT IN,¢TALLATION NOTES
I. HYDRANT BARI~££ t,¢UST BE
~. HYDRANT, AUXILIARY GATE VA~VE~ AND VALVE BOX TO
BE BID AS UNIT IN PLACE. ~EAD FROM ~¢AIN TO HYD' '
RANT A~SO I5'G~U[)ED IH FIR~ IIYD~ANT
~. TIlE STANDARD HYDRANT HA8 A .10"
~. A~ HYDRANTS SHALL ~E ~U~ZER IMPI'~OVED
NO. A 2~015 AND PAINTED CATERPILLAR
,~TA~DARD OEI'~I~
L E VEL
HYDRANT ~TRANch--
HORIZONTAL PIPE PERFORATED
ON SURFACE FACING WATER
LINE WITH $/16 '~ HOLES ON
12' CENTERS~ INSTAL L ED 12"
ABOVE ~ 12" TO THE SIDE' OF
HYDRANT BRANCH. TO BE OF
GALVANIZED PIPE WITH
MALLEABLE FITTINGS.
STi~NDAt?D D~?AIL W-- I0
"L" BIJSE H YD.'
NOTES:
GUARD POSTS V/ILL ££ FURNISHED BY THE CITY ~ TH£Y
SHALL BE INSTALLED BY THE CONTRACTOR AS LOCATED ON.
POSTS SHALL £'C LOCATED TO /LLOW UKF,'ESTF¢ICT£D
ACCESS TO PUMP£R AND HOSE COHH£CI'ION$.
TREE T
CITY OF ANCHORA GE
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Dro;vn: PK
ST~KOARD
HYD~?~HT GU+~
POS TS
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C£t~TIFICAT£ OF OWIV~./~HIP 8 D£DIC,~T/OI.
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· 5/8" REBAR SET THIS SURVEY
;Pliot
CERTIFICATE OF OWNERSHIP & DEDICATION
NOTARY'S ACKNOWLEDGEMENT
NOTARY FOR AtASKA'
MY C()MMiSION EXPIRES
ENGINEER'S CERTIFICATE
PLAT APPROVAL
day
DTI000288
This plat contains 16.66 ocres.=~
EKLUTNA WEST SUBDIVISION
SECTION 3, T. 15N R. JW.
SEWARD MER DAN
ALASKA
DET'~/L 'C '
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L//,/E C)~A~T
CU~'VE £HA~T
DTI000287
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ACCEPTANCE OF DEDICATION
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