HomeMy WebLinkAboutROLLING HILLS ESTATES Block D Lots 4, 5, 6, 7, 8, 15, 16, & 17 Soils Reports/o
4040 "B" STREET -~
(907) 27/~U~,,~FIALITY OF ANCHORAG'L~'-,~,;''~
July 5, 1978
W.O. #A18498
Mr. John Bagoy
c/o Karl Bachner
1135 W. 8th Avenue
Anchorage, AK 99501
Subject: Subsurface Investigation, Block D,
Rolling Hills Estates
DEPT, OF i T/\L];i &
EF'.VIRONk'~':NTAL i ;:, [ECTION
· APR 1 0
RECEIVED
Dear Mr. Bagoy:
At: the request of Mr. Karl Bachner, we have conducted the
subject exploration. The scope of the investigation includes
test holes and percolation tests on lots 4, 5, 6, 7~ 8 and
15, 16, 17, Block D, Rolling [{ills Estates· }nc. luae~ wi'bh
this transmittal are:
Vicinity Map Figure 1
T~sE Hole Luuation Sketch Pigure 2
Test Hole Logs Table A
Su~nary of Percolation Test
Results Table B
Standard Explanatory Information Sheets ~-3
Exploration was conducted on June 22, 1978. A No,well
mounted Mobi].e Drill B-50 rig was used. The drilling equip--
ment is owned and operated by Denati Driling~ Inc. Test
holes were located, in the fietd and logged by Mr. Joe Williams,
staff technician with Alaska Testlab.
As samples were recovered from the auger flights, they were
sealed in plastic bags for protection of the sample and
maintainance of the~ir natural moiture content. In the
laboratory, the samples were visually classified and the
mois~.ure content and dry strength of each sample was deter-
mined.
When drilling was completed, a 3/4" slotted PVC pipe was
inserted into each hole to aid in determining the free water
leve~o For the percolation test the hole was filled with
water and left overnight to saturate. On returning the'next
day, the hole was refilled with water and the drop in the
water level carefully monitored over the next 60 minutes or
longer if necessary in order for the rate to stabilize. We
understand this procedure is preferred bv the Municipality
of Anchorage, Department of Public llealt~ and Environmental
Protection to evaluate the site for proposed on--site sewage
Mr. John Bagoy
c/o Mr. Karl Bacln~er
July 5, 1978
Page 2
treatment systems. Table B is a summary of the results of
the above tests.
No free water was observed in any of the test holes. It
should be noted, however, that the. free water level may
fluctuate seasonally or with precipitation.
We trust the above meets your present needs. If you have
any questions or if we may be of further service, please do
not hesitate to contact us.
Very truly yours,
ALASKA TESTLAB
R. Mark Ha
RMH:rb
Enclosures
APPROVED,
Melvin R. Nichols, P.E.
Laboratory Manager
INTERNATIONAL
,/
Lr~ 0
Lot #4
Table A
WO #18498
Logged By: J. Williams
Date: 6-22-78
Depth in Feet
From To
0.0' 1.5'
1.5' 5.0'
5.0' 12.0'
12.0' - 16.0'
Soil Description
Brown'~eat (Pt).
F-4, brown Silt (ML) with trace gravel, NP
to P1-.
F-4, brown Silt (ML) with trace fine sand,
Pi+.
F-3 to F-4 brown Silty Sand/Sandy Silt, (SM),
NP, trace organics.
Bottom of Test Hole:
Frost Line:
Free Water Level:
16.0'
None Observed
None Observed
Sample Depth
5.0'
10.0'
15.0'
Type of Dry
M% Sample Strength Unified
23.3 G N ML
25.2 G M ML
16.7 G L-N SM
Remarks: 1.
3.
4.
5.
6.
Type of Sample, G=Grab, SP = Standard Penetration,
U = Undisturbed.
Dry Strength, N=None, L=Low, M=Medium, H=High.
Group refers to similar material, this study only.
General Information, see Sheet 1.
Frost and Textural Classification, see Sheet 2.
Unified Classification, see Sheet 3.
Lot %5
Table A
WO ~18498
Logged By: J. Williams
Date: 6-22-78
Depth in Feet
From To
0.0' - 2.0'
2.0' - 5.0'
5.0' - 16.0'
Soil Description
Brown Peat, (Pt).
F-2/F-3 Brown Silty Sand (SM) with trace
gravel.
F-2/F-3 Brown Silty Sand (SM).
Bottom of Test Hole:
Frost Line:
Free Water Level:
16.0'
None Observed
SamPle Depth
1 5.0'
2 10.0'
3 15.0'
Type of Dry
M % S ~ p 1 e ~ tr~ ~_g~ ~ ~.~.~ ~ ed
18.4 G M SM
18.2 G L-N SM
12.4 G N SM
Remarks: 1.
3.
4.
5.
6.
Type of Sample, G=Grab, SP = Standard Penetration,
U = Undisturbed.
Dry Strength, N=None, L=Low, M=Medium, H=High.
Group refers to similar material, this study only.
General Information, see Sheet I.
Frost and Textural Classification, see Sheet 2.
Unified Classification, see Sheet 3.
Lot #6
Table A
WO #18498
Logged By: J. Williams
Date: 6-22-78
Depth in Feet
From To
0.0' - 2.0'
2.0' 16.0'
Soil Description
Brown Peat (Pt).
F-4, brown Bandy Silt (ML), with trace
organics. Pi+ to P1-.
Bottom of Test Hole:
Frost Line:
Free Water Level:
16.0'
None Observed
None Observed
Sample Depth
2 10.0'
3 15.0'
Type of Dry
M% Sample Strength Unified
30.2 ~ L }iL
21.7 G L-N ML
26.5 G L-N ML
Remarks: 1.
o
3.
4.
5.
6.
Type of Sample, G=Grab, SP = Standard Penetration,
U = Undisturbed.
Dry Strength, N=None, L=Low, M=Medium, H=High.
Group refers to similar material, this study only.
General Information, see Sheet 1.
Frost and Textural Classification, see Sheet 2.
Unified Classification, see Sheet 3.
Lot #7
Table A
WO #18498
Logged By: J. Williams
Date: 6-22-78
Depth in Feet
From To
0.0' 1.5'
1.5' 10.0'
10.0' 16.0'
Soil Description
Brown ~eat (Pt).
F-4, brown Sandy Silt (ML). Trace organics at
5', P1- to Pi+.
F-4, brown Silt (ML) with trace Sand. P1-.
Bottom of Test Hole:
Frost Line:
Free Water Level:
16.0'
None Observed
None Observed
Sample Depth
1 5.0'
2 10.0'
· 3 15.0'
Type of Dry
M% Sample Strength Unified
28.9 G L-N ML
23.6 G L-N ML
23.1 G N
Remarks: 1.
3.
4.
5.
6.
Type of Sample, G=Grab, SP = Standard Penetration,
U = Undisturbed.
Dry Strength, N=None, L=Low, M=Medium, H=High.
Group refers to similar material, this study only.
General Information, see Sheet 1.
Frost and Textural Classification, see Sheet 2.
Unified Classification, see Sheet 3.
Lot #8
Table A
WO #18498
Logged. By: J. Williams
Date: 6-22-78
Depth in Feet
From To
0.0' - 10.0'
10.0' - 16.0'
Soil Description
F-4, b~own Sandy Silt (SM), NP.
F-4, brown to grey slightly Gravelly Sandy
Silt, (ML), NP.
Bottom of Test Hole:
Frost Line:
Free Water Level:
16.0'
None Observed
None Observed
Sample Depth
1 5.0'
2 I0.0'
3 15.0'
Type of Dry
M% Sample Strength Unified
16.9 G N SM
I I . ~" G N ~
13.6 G N ML
Remarks: 1.
3.
4.
5.
6.
Type of Sample, G=Grab, SP = Standard Penetration,
U = Undisturbed.
Dry Strength, N=None, L=Low, M=Medium, H=High.
Group refers to similar material, this study only.
General Information, see Sheet 1.
Frost and Textural Classification, see Sheet 2.
Unified Classification, see Sheet 3.
Lot #15
Table A
WO #18498
Logged By: J. Williams
Date: 6-22-78
D.epth in Feet
From To
0.0' - 3.0'
3.0' - 10.0'
10.0' - 16.0'
Soil Description
F-4, brown Sandy Silt (ML) trace organics NP
to P1-.
F-4, brown slightly Gravelly Sandy Silt (ML)
Pi+.
F-4, olive, to brown Gravelly ~andy Silt (ML)
Pi+.
Bottom of Test Hole:
Frost Line:
Free Wate'r Level:
16.0'
None Observed
None Observed
Sample pepth
1 5.0'
2 10.0'
3 15.0'
Type of Dry
M% Sample Strength Unified
19.6 G M ML
21.1 G M ML
14.8 G L-M ML
Remarks:
2.
3.
4.
5.
6.
Type of Sample, G=Grab, SP = Standard Penetration,
U = Undisturbed.
Dry Strength, N=None, L=Low, M=Medium, H=High.
Group refers to similar material, this study only.
General Information, see Sheet 1.
Frost and Textural Classification, see Sheet 2.
Unified Classification, see Sheet 3.
Lot #16
Table A
WO #18498
Logged By: J. Williams
Date: 6-22-78
Depth in Feet
From To
0.0' - 8.0'
8.0' - 16.0'
Soil Description
F-2 to'F-3, brown Silty Sand (SM) fine grained,
trace gravel below 4'.
F-4, brown Sandy Silt (ML), NP to P1-.
Bottom of Test Hole:
Frost Line:
Free Water Level:
16.0'
None Observed
None Observed
Sample Depth
1 5.0'
2 !0.0'
3 15.0'
Type of Dry
M% Sample Strength Unified
12.8 G N SM
2!.2 G M-H ~L
16.5 G N ML
Remarks: 1.
e
3.
4.
5.
6.
Type of Sample, G=Grab, SP = Standard Penetration,
U = Undisturbed.
Dry Strength, N=None, L=Low, M=Medium, H=High.
Group refers to similar material, this study only.
General Information, see Sheet 1.
Frost and Textural Classification, see Sheet 2.
Unified Classification, see Sheet 3.
Lot #17
Table A
WO #18498
Logged By: J. Willi~ns
Date: 6-22-78
Depth in Feet
From To
0.0' - 3.0'
3.0' - 10.0'
10.0' 16.0'
Soil Description
F-4, brown Sand~ Silt (SM), with trace
organics, NP to Pi-.
F-2 to F-3, brown very Silty Sand (SM).
F-4, brown Sandy Silt (ML), NP to Pt-.
Bottom of Test Hole:
Frost Line:
Free Water Level:
16.0'
None Observed
Depth
5.0'
10.0'
15.0'
Type of Dry
M% Sample Strenqth Unified
18.0 G L-M SM
14.2 G N SM
20.5 G L-N ML
Remarks: 1.
e
3.
4.
5.
6.
Type of Sample, G=Grab, SP = Standard Penetration,
U = Undisturbed.
Dry Strength, N=None, L=Low, M=Medium, H=High.
Group refers to similar material, this study only.
General Information, see Sheet 1.
Frost and Textural Classifica'tion, see Sheet 2.
Unified Classification, see Sheet 3.