HomeMy WebLinkAboutCEARK Plat# 77-81 S-4155
CASE NUMBER
DEPARTMENT OF HEALTH AND ENVIRONMENTAL PROTECTION
PLATTING OR PLANNING AND ZONING CASE REVIEW
PETITION FOR
Date Received
Rezoning
· Special Exception
VACATION
RESUBDIVIS ION
Comment to Planning by
for meeting of
COMMENTS: ~ of Cases
ENVIRONMENTAL SANITATI UBLIC WATER NOT AVAILABLE --
___~ >UBLIC SEWER NOT AVAILABLE TO SERVICE
AREA
%
"ONE TEST |5 WORTH A THOUSANO OPINIONS"
2204 CLEVELAND AVENUE · ANCHORAGE~ A~ASKA 99503 · 277-O231
June 8, 1976
H. V. Lounsbury & Associates
723 West 6th Ave
Anchorage, Alaska 99501
Re:
Ceark Subdivision
Tracts F, E, C & D
Attention: Mr. Darl Kvasager
Dear Darl:
At your request, we have completed 4 test borings along with
the required percolation tests on the referenced prOject.
Site Description
The Project site is located in the West 1075 feet of the
North 1260 feet of the NWl/4 NWl/4., Section 6 TllN R2W
S.M. The terrain is moderately sloping with grades between
11 and 13 percent. At the time of our drilling in late May,
break-up was occuring in the high mountains and the surface
layers of soil in Tracts C, D & E were in a wet condition.
Subsurface Information
The depth of organic topsoil varies from 1 foot in Tract F
to 4 feet in the remainder of the tracts. Dry to moist
Silty Gravelly Sands occur at minus 2 feet in Tract F and
generally below minus 6 feet in Tract C, D & E. No bedrock
or subsurface ground water was encountered to the depths
investigated.
S 155 AUS
1976
H.V. Lounsbury & Associates
Ceark Subdivision
6/8/76
Page 2
Conclusions
The results of our percolation tests indicated that
at this site will require drainage areas of between
250 square feet per.bedroom. We strongly recommend
drainage fields be constructed. after spring break-up conditions
are completed and the surface soil layers are dryer.
If we can be of further assistance' with this Project or you
have any questions, please contact our office.
Very truly yours,
CONSTRUCTION TEST LAB
James D. Mack
Laboratory Manager
JDM/ss
enclosures- ..
2204 Cleveland Anchorage, Alaska 99503
Performed For H,V, Lounsbury & Assoc, Date Performed
te,al OescriDtion: Lot C Block Subdivision
This ~orm Re,orts Soils Loq
5/.26~76 .......
Ceark Subdivision.
Percolation Test_yes
~eoth
Feet Soil Characteristics
~-- Organic Topsoil, wet
(ML - PT)
Silt, wet (ML)
~ 6
16 ,
Silty Gravelly Sands,
moist
18
20
BOttom of Test Hole
Was Ground Water Encountered? No
I~ Yes. At what De,th?
Readinq Date Grnss Time Net Time Depth to H20 Net Dron
inches inches
6-1' " 0 60 0
i ''
I 6L2 24 hrs
6-2 0 60 " 0
6-2 t80 mzn 67-1/2
i ' 6-2 210 mln 68-1/2 1
} 6-2 240 min 69-~/2 ' 1'
Percolation Rate 1"/30 Hinute
Prnposed Installation: Seenaoe Pit Drain Field
Deoth of Inlet Denth To Bottom Of Pit Or Trench
CDU~ENTS: 250 square feet drainage area required per bedroom.
No ground Water or bedrock encountered.
Test Performed By //~ ~/'~, ~ J i'-m Mack
Data Certified B~:CONSTRUCTION.TE~B
Date: 6/7/76
2204 Cleveland Anchorage, Alaska 99503
Per¢ormed' For H.V. Lounsbur~ & Assoc. 0ate Performed 5/26/76
Leaal qescrintion: Lot D Block Subdivision Ceark Subdivision
This form Renorts Soils Lo. Percolation Test yes
nenth
Feet
Soil Characteristics
4--
6
8--
10
20--
Peat, wet
(PT - ML)
Sandy Gravelly Silt, wet
(ML)
Gravelly Silty Sand, moist
Bottom of Test Hole
Was Ground Water Encountered?
I~ Yes, At what Denth?
w
No
Readinq Date Grnss Time Net Time Denth to H20 Net Dron
inches inches
6-1 .... 0 8'4 0
6-2 24 hrs
~ 6-2 0 84
6-2 180 min 91-1/2 7-1/2
~ 6-2 210 min 92'-~/8 ,1-'~/8
I 6-2. '240 min 93-~8 1
, , -,,,,,
Percolati
Prn
De,
Cn.t~ENT
Rate ~'1m'730 Hinute
sed Inst~llllation: Seenaae Pit
o~ Inlet De
~250 ,s~uare ~eet dra±nage
No grounO water or bedrock
Drain Field
To Bottom Of Pit Or Trench
>er bedroom.
Test Perfor
J~
Mack
Data Certified BY: CONSTRUCTION TE~B
Date: 6/7/76
Performed For s & s EnKineerin~
Leaal qescrtntton: Lot i Block
Thts form Re.orts Sotls
2204 Cleveland Anchorage, Alaska 99503
Date Performed 3-1-78
Percolation Test Yes
~eDth
~eet Sotl Characteristics
2--' Peat
' 4--
16~-
I 18--
20--
Brown Silty Gravel
(GM)
Bottom of Test Hole
Was Groun4 Water Encountered? No
If Yes, At what De.nth?
Readtnq Date Gross Ttme Net Ttme De,nth to H20 Net Dron'
~ ~aturate Per ~od
; 3-2 3 Hrs,
' 3-2 3, 5 ~r~ ?g 5", 3/4"'
Per, attnn 3~e l"/
Prnrosed Inst on: Ptt Dratn Fteld
Deeth of Znlet Depth Yo Bot'~om Of,Ptt Or Trench
cn~PENTS: 275 S~. Ft. required edroom from minus 3' to 16' (We
st 'ongly recommend tha~ the drainag fields be constructed after spring
· ons are comp surface soil layers are dryer.
Tes ~rformed By Oata Certified B~:,cT~
Date: 3-3-78
Performed For
Leaal Qescrintion: Lot E Block
This Korm Renorts Soils Loa
"On~ ~ is w~h a ~h~sand opinions"
2204 Cleveland Anchorage, Alaska 99503 .
H.V. Lounsbury & Assoc. Date Performed 5j26/76
Subdi¥isi0n Ceark Subdivi~io~
Percolttion Test yes
.nenth
Feet Soil Characteristics
]2 -- Organic Topsoil, wet
(ML - PT)
4 - -
Silt, wet (ML)
16
Silty Gravelly Sand, moist
(SM)
18--
20 ..
Bottom of Test Hole
Was Ground Water Encountered? No
I~ Yes, At what Denth?
Readinq Date Gross Time Net Time Depth to H20 Net Dron
inches inches
6-1 0 72 0
I 6-2 " 24 hrs 132 60
I 0 72 0
6'2
6-2 180 min 79 7
i '6-2 210' min 80 1
J '6-2 240 min 81, !.
Percolation Rate 1 /30 Hinute'
Prnposed Instal ation: Seenaae Pit Drain Field
Deoth of Inlet Deoth To Bottom Of Pit Or Trench
C0U~'ENTS: 250 square feet drainaqe area required Der. b~drQo~.
No ground water or bedrock encountered.
Test Performed By_d/&m
Data Certified B~.CONSTRUCTION TEST
Date': 6/7/76
Performed For
teoal Qescrintion: Lot F
This Form Renorts Soils Loq
"O,m ~ fs zvor~h ~ ~o~a.d opinio,s"
2204 Cleveland. Anch. orage, Alaska 99503
H.V. Lounsbury & Assoc. Date Performed
Block
5/.2~6/76
Subdivision Ceark Subdivision
Percolation Test yes
.nepth
Feet
TODSOZ ~
2_
Soil Characteristics
Slightly Silty Gravelly Sands
(so - SM)
12'--
14--.
16J
18
20--
Bottom of Test Hole
Was Ground Water Encountered? No
IF Yes, At what Denth?
i , !-,
I I ,
.... ! I
i' l i ' ' 1~
IRea~in~ Date Grnss Time Net Time Denth to H20 Net Dron
inches inches
" 6-1 0 48 0
i 6_~ 24 hrs 120 72 _
[ 6-2 0 ..... 48 0
t i~0 min 54 6
6-2
6-2 210"min b5'1/2 1-1/2
i ...... 6-2 240'min 56-3/4 1-1/4
Percolation Rate 1"/25 Hinute
Prnposed Installation: Seenaoe Pit Drain Field
DeQth of Inlet Denth To Bottom Of Pit Or Trench
C~M~ENTS: 225 Square Feet Drainage Area Required .per Bedroom.
No ground water or bedrock encountered.
Test Performed By ~-' ~,'/'?,"-/-~,
jz~m' Mack' ' - '
Data Certified B~.CONSTRUCTION TEST L~
Date: 6/7/76
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