HomeMy WebLinkAboutTIMBER TRAIL S-115195-11519
Timber Trail
ENGINEERING, INC.
October 23, 2007
Municipality of Anchorage
On-site Water and Wastewater Services
4700 Bragaw Street
Anchorage, AK 99507
SUBJECT:
On-site Water and Sewer Suitability
Plat Case # S11519-1, Timber Trails Subdivision
EEI Project No. 06-4231
To Whom It May Concern:
Enterprise Engineering, Inc. (EEI) in conjunction with Sentec Engineering and Surveying have
conducted field tests, survey, and document searches to satisfy the platting comments generated
by the MOA On-Site Water and Wastewater Services (OSWWS). Attached to this letter are two
figures and two percolation test logs indicating that the two proposed lots can be developed and
meet applicable section of Anchorage Municipal Code (AMC) 15.55 and 15.65.
Water is available to the proposed tracts through the development of on-site wells. The
surrounding properties appear to have successfully drilled water wells. The well log for Tract B
of Kee-Too Subdivision has been attached with this letter as evidence of availability of water.
EEI monitored the perforated tubing installed during the soils investigation and percolation
testing and has not observed groundwater at any time. The latest date of monitoring was
conducted on October 18, 2007.
Sincerely,
ENTERPRISE ENGINEERING, 1NC.
~Jame fC Arm~.E.
Project Engineer
Freeport, ME 04032 · 5 Depot Street, Suite23 o 207.869.8006 · Fax 207.869.8015
Anchorage, AK 99503 o 2525 Gambell Street, Suite 200 · 907.563.3835 · Fax 907.563.38'17
SUBDIVISION PLAT
SCALE: 1' = 200'
PRO.JECT / TITL[ GRAPHIC SCALE
r PLAT OF TRACT 1
.......... TIMBER TRAILS SUBDIVISION
· ,_ ~o ,~-~.~ r~ ~ ~.~ SKETCH ~ lOO lOO ~ FT
oR, spu °"%cA °^%/23/07 s,~. o~ 3 ~~,~ ,'-,o'
..... ~.-~ ? .... ~ ....... '-w-- ~ ----~ ...... -~--- ? \
-,- ,- ,', ! I .... , \ ~ / \ ASSUMED / ; \
,.- r- ~ ~.~" ~ I 1. THIS FIGURE IS INTENDED TO SHOW THAT ON-SITE · ~ WELL LOCATION ~ '
'~.L'_L--- ' ~ ~ WATER AND SE~ER ~STEBS CAN BE D~LOPED ' ~
, ' ,. ~. ~- CL , ~ ON THIS TRACT AND MEg CURRENT SEPARATION ' ~
q ,,, ...... , I REQUIREMENt. ~
~ I ~ PERMIT THE ON-SITE WAST~A~R DISPO~L SYSTEM AND ~
~ ~ OBTAIN ANY AGREEMEN~ AND NECES~RY ~SEMENTS WITH x~
q I ~ THE OWNER OF ANY AFFECTED PROPE~IES.
X ~ ~ ~ ~ .~/ -,-,~ .... -. --~ ....
~ ~ ', ~ ~ ~ '~ ?/~ ', ::':~:n : X,'~,',L_
-,-~ .... -~.~ ~ ~ / L '.~ ~ N x~ .....
~ K,°, t. ', ~ ', '" -- ~ 'x .~ 'u ~.
, ~ '; ~ XRESE~ATION AR~ ~ 4 BEDROOM k
~ ~I ~ X ~ ~RESIDENTIAL , "1,
~ ~I I ~ k ~ ~ALTERNATE ~ ,
~ ~l J ~ N X SEPTIC FIELDS - I~1 ' J
~j ~J
J
J
I
..... .... :-: .... ......
~ / x/'x~( N 89'58'50"/~ ~ ~ ~ ~E 280.1T
SEaC S~E~ S~Z~
-~0 OA~/a~ ~, ~E~= ~00 -~ ..... ~-~- ~-~ - -~- % .....
APPLICATION ~TE= 0.8 GAL/DAY/~~ ~ / ~x~S// ~ ~ J
? ~,z~: ~.~.~. ' ' ~ ', ~ ~ ~ ~ LEAST 1 ~2nd AVENUE
,6 DEEP TRENCH) ~ __ ~_~ X N~ ~ ~ ~ ~ /
..... ~, ~-- ~ --~-~-~- '~ __ k-~--~__ ~, - .... / ......
x /~ ', , ~ / ~/ ~ I ( / ~ ......
~J ~ ~ J~ ~P~SSIBLE EXISTING ~ ~ .....................
~ '~ J ~ J ~ I~ WELL LOCA~ON ~ /' ....................
~ -,-~ .... _,_q ~] -- ~-- ~ ..uxu""' "'"'
PROJECT / ~ GRAPHIC SCALE
f ~ ~ lB, ~I~B~R ~ S~D~ISION
~ ~ PROd. NO, DRA~NG NO.: RE~V.
~ ~ ~ ~-~ SKUCH 2 25
~ ~ ~-~'~ ~ ~]'~'~ 06-4231 1 I
DRN CHK: DA~ SH~
SPU JRCA 10/23/07 OF
Municipality of Anchorage
Development Services Department
Building Safety Division
On-Site Water and Wastewater Program
4700 South Bragaw St.
Performed For:
P,O. Box 196650 Anchorage, AK 99519-6650
www. ci.anchoraqe.ak l!~
{907) 343-79~4
Soils Log - Percolation Test
LegalDescripfion: 7y'~l~- /'~ 7~.~¢/.T~..~:j~ ~ Township, Range, Section: A,~¢~d.,.~t~j~.~C~/~.//~L
Site Plan
3-
5-
7-
=
14-
15-
16-
17,
18-
19-
COMMENTS
WAS GROUND WATER
E"COV~E.ED?
iF YES, AT WHAT DEPTH?
Depth te Water After
MonEoring?
Date:
Reading .Date Gross Time Net Time Depth to Water Net Drop
TESTRUNBETWEEN_, ~ FT AND ~ FT
PERFORMEDB¥: ~_~F~...-,,~.-,~e_:~:,~,~,~?~cI .~...,.,~ ~ .... ~_..~
. . ' ., ~:,' ............. _~',"1 ut:~II;-¥/HATTHSTESTWA8
PERFORMED IN AOCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. DATE:
, \1 x ~ ~ I~'I ~k ~ / "~xAPPROXlMATE ~ ~ ~iI ~ I
"1 ~ ~ X L J ~ / /WELL ~DIUS~
~ ~ X ~ X ~ ~ ~ ~o~u~ ~
~ J X ~ ~ __ ~ ~ S 8~59'~7" ~ ~00~7/ ~ ~ ~ 30.0("
X i ~ X - ~ ~ ~ STRUCTURE ,
. ASSUMED ~ .
~ I ~ WATER AND S~ER ~STEMS CAN BE D~ELOPED ~ ~/ 'ii X I
~ ON TH S T~CT AND ME~ CURRENT SEPARATION ~ ~.
I 2 AT THE TIME OF DEVELOPMENT, THE D~ELOPER SHALL [ ~%
' PERMIT THE ON-SITE WASTEWATER DISPOSAL SYSTEM AND ~
J OBTAIN ANY AGREEME~S AND NECES~RY ~SEMENTS WITH ~ ~ ~l I
~ THE OWNER OF ANY AFFECTED PROPERTIE~ ~ ~ Il I
~% i /// % 10 Ubhtv Easement
.... ~--~r=- .......... /~: .............................. ~- .... ~ ....... ~' '
........ ........
~ ~ ~~ EAST 142nd AVENUE',~ X L
~ ~ ~ ~POSSIBLE EXISTING ~ ~
._~ __~t ~_x-/- -- ~-~ / -- /-~ ....
SEPTIC S~EM SIZING k~ % , ,,-,. ,
150 GAL/BEDROOM x 4= 600 GAL/DAY ~ ~ ~ ......
APPU~TION RATE= 0~0 ~L/DAY/~ ~ / ~
PROJECT / ~E GRAPHIC SCALE
f ~ T~CT lC, TIMBER ~ S~DIVISION
PO~ WA~R & SEWER SYS~M
~ ~ ~ PRoo. No. DRA~NO N0.: REV'v.RE
~ o~ ~ ~ ~ SK~CH 3
~ r~g~,~,~ ~]~t~ ~ 06-4231 1 25
DRN CHK:dRCA DA~ $H~.
SPU 10/23/07 OF 3 S~:
11-
13-
14-
15-
16-
17-
16-
20-
Perfolmed For:
MUnicipality of Anchorage
Development Services Department
Building Safety Division
On-Site Water and Wastewater Program
4700 South Bragaw St
P.O. Box 196650 Anchorage. AK 99519-6550
_ .www. cLanchoraqe.ak.[m
(907) 343-?904
Soils Log - Percolation Test
WAS GROUND WATER
ENCOUNTERED? Jr0
s
IF YES AT WH~,T DEPi]-19 L
Depth to Water After O
Date:
· PERC HOLE DIAMETER
~$T RUN BETWEEN ~ FT AND ~ FT
COMME~S ' -,
Reading Date Gross'Time Net Time 'Depth to WaterNet Drop
~- gl/lo? /~ z~,~. ~'~ O.~/
PERFORMEDBY: .~'/-e..'~',.~e... I~,,~e'/~l~'.~--r~f ~,:...l ~'~t~,~.~.~, /'~,~'~/,'",'~CERTIFYTHAT .
PERFORMED IH ACCORDANCE WITH ALL ~TATE AN[~ MuNIcIPAl O.I IIn~ ~:e .., =~,-~-~.~--~.; ' THIS TEST WAS
....... ~-,,'~:~ ,r~ I:I';-I:~T ON '11'118 DAT~. DATE: ~'//l.~