HomeMy WebLinkAboutMOUNTAIN AIR ESTATES #2 Expired Plat S-5853
MUNICIPALITY OF ANCHORAGE
DEPARTMENT OF HEALTH & ENVIRONMENTAL PROTECTION
ENVIRONMENTAL HEALTH CASE REVIEW WORK SHEET
PLATTING BOARD [] PLANNING & ZONING
CASE NUMBER
S-5853
DATE RECEIVED
July 30, 1981
COMMENT TO PLANNING BY
August 17, 1981
NAME... _ .............
~"-Lots 1 - 5 Block 9, Tract
Air Estates
FOR MEETING OF CASE OF
[~"'~UBLIC WATER_NOT AVAILABLE TO PETITION AREA
~UBLIC SEWER~N_OT~AVAILABLE TO PETITION AREA
REVIEWER'S COMMENTS:
71-014 (Rev, 2/78)
J M LAMBE AND ASSOCIATES
SOIL AND MATERIALS
ENGINEERING
AND TESTING
John M. Lambo, P.E.
August 21, 1981
Log Specialties
SRA Box 4120
Anchorage, Alaska 99502
Attention: Jerry Green
4101 Arctic Boulevard · Suite 205 * Anchoralij~iaska 99503
m~L-fmALIT¥ OF ANCHORAGE
DEPT. OF HEALT!i &
ENVIRONMENTAL P~ C'FECTION
RECEIVED
907-276-4113
Subject: Soils Exploration, Tract C-1, Mountain Air Estates, Addition #2
Dear Mr. Green,
In response to your request, we have performed soils explorations on Tract
C-1, Mountain Air Estates, Addition #2. This report presents the results of
our soils investigations and our recommendations regarding development and
waste water disposal.
This work was performed in several phases. The first was drilling three
borings to preliminarily assess the quality of the site. Based on these three
borings, the eastern portion of the site was dismissed as probably unsuitable
for subdivision without substantial drainage. More detailed exploration was
performed to define the soil conditions on the western portion of the property.
One boring was placed on each of the proposed lots so that a site for a on-site
sewer system could be defined. The locations of the borings are presented on
Plate 1, attached. The borings were performed with our "Mobile B-47" drill rig
fitted with 6" solid flight continous auger. Samples were taken at various
intervals by removing the auger from the test hole and removing the sample from
th~} flights of the auger from near the bit. Mr. Roy McDonald, Mr. Mark Hall and
Mr. Peter Chalich of our staff were involved in the soils exploration. The logs
of the borings are presented on Plates 3 through 20, attached. All soils were
visually classified in the field according to the Unified Soils Classification
System presented on Plate 21 and the Textural Classification System presented
on Plate 22.
Adjacent to most of the borings, percolation testing was performed to assess
the suitability of the site for on-site sewer systems. The results of the per-
colation testing are presented on the bottom of the boring logs. For the purposes
Page 2
Log Specialties
Soil Exploration, Mountain Air Estates
of this exploration, the data is presented on the Municipality of Anchorage
Department of Health and Environmental Protection standard soils log/perco-
lation test forms.
We have discussed this project with Mr. Jerry Green and Mr. Fred Walatka.
Mr. Walatka and I have discussed the lot configuration and space requirements
and have evolved a lot configuration which allows room for on-site sewer systems
on each lot. This lot configuration is presented on the preliminary plat
attached as Plate 1.
The significant topographic features of the subdivision are a large marsh
on the eastern portion of the property and a small ridge on the western portion
of the property. In our opinion, the ridge will provide a suitable area for
building and on site sewer systems. From this reference, it is the writer's
opinion that wells should be placed on the eastern portion of the lots, 100
feet east of the east toe of the ridge. This configuration will maximize the
available useable areas for sewer development. However, this configuration will
require that the wells be placed in marshy areas with high surficial water. This
will complicate the drilling the well and make absolutely necessary a sanitary
seal between the surficial water and the aquifer. Mr. Les Buchholz of the Depart-
ment of Health and Environmental Protection has indicated that such a seal is
probable with wells 50 feet deep. Plate 2, attached, suggests areas for the
development of improvements in a manner which would maximize available area for
sewer systems. Plate 2 was prepared without the benefit of good topographic
data and should not be considered to expressly define the various areas. The
intent of Plate 2 is to reserve the high ground for on-site sewer systems. ~e
have walked the site with Mr. John Lynn of the Department of Health and Environ-
mental Protection and discussed the project at length with Mr. Les Buchholz.
It is our collective opinion that it is incumbent upon the developer and builder
to reserve useable area on the ridge for at least two systems, and preferably
three systems to allow replacement should the original systems clog and fail
within the design life of the structures.
Because ground water is a significant feature of the site development, we
have installed slotted PVC pipe in many of the test holes and monitored the
water levels in the pipe during this spring and summer. A summary of the water
levels are presented on Plate 23. The highest of all water levels observed are
presented on the Boring Logs and Plate 1.
We believe these analyses indicate that there is a reasonable possibility that
each site can be developed with on site sewer systems. The sewer systems will
Page 3
Log Specialties
Soils Exploration, Mountain Air Estate
have to be constructed with care and installed at a shallow depth. Rigorous
inspection is recommended so that any anomallies from the soils observed in
our exploration can be detected and designed for during the installation of
these systems. While significantly more coverage of this subdivision was per-
formed than for some others, it is still incumbent upon the developer and the
builder to ascertain that the actual conditions at the site of the proposed
sewer systems conform with the conditions observed in our exploration. If a
question arises, then it is very important that percolation testing and ob-
servation wells be established on the sites of the proposed systems to verify
suitability of the site. We recommend that this be done before construction
of the building.
We have discussed the site with Mr. Les Buchholz and Mr. John Lynn. The
scope of our investigation was intended to satisfy the requirements that they
established during our discussions. Data has been previously transmitted to
the Department of Health and Environmental Protection as it became available.
This report supercedes all previous transmittals and is intended to be com-
prehensive, however, it may not be exhaustive of the possibilities. Therefore,
if questions arise or if we can be of any further service, please feel free to
call.
Very Truly Yours,
~ O°~'i'Lambe, P.E.
Civil Engineer 4254-E
PERFORMED FOR:
LEGAL DESCRIPTION:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
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18
19
2O
COMMENTS
SOILS LOG
MUNICIPALITY OF ANCHORAGE
DEPARTMENT OF HEALTH AND ENVIRONMENTAL PROTECTION
825 L. Street, Anchorage, Alaska 99501 264-4720
SOILS LOG - PERCOLATION TEST
PERCOLATION
TEST
BORING #1
5~.0Wt, I qlLTY 5AND'Y d~.;~A'VFJ--
CO56L~5 ~ .s
~7,0WN 3IL'pt ...,qAND"t'
SLOPE SITE PLAN
WAS GROUND WATER
ENCOUNTERED?
IF YES, AT WHAT
DEPTH?
Gross Net Depth to Net
Reading Date Time Time Water Drop
~- I~-~ I ;00 ,~P~ v,,~.TF.~ ~?L",...
~- ~ -,5~ I: a~ A~p w4~.~, 45Yz~ - -
PERCOLATION RATE -T (minutes/inch)
TEST RUN BETWEEN ~--- FT AND ~' ~
-- FT
PERFORMED BY:
IMI
,~ .'l .-AMBE AN'D A$SOCiA/ES
CERTIFIED B~OHN M. LAMBE, P.E, DATE:
4.101 ARCTIC BLVD., SUITE gO~
~NCHORAGE, A~ 99503
72-008 (6/79)
PERFORMED FOR:
LEGAL DESCRIPTION:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
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18
19
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COMMENTS
SOILS LOG
MUNICIPALITY OF ANCHORAGE
DEPARTMENT OF HEALTH AND ENVIRONMENTAL PROTECTION
825 L, Street, Anchorage, Alaska 99501 264-4720
SOILS LOG - PERCOLATION TEST
DATE PERFORMED:
PERCOLATION
TEST
BORING #2
SLOPE
SILTY £A, ID"( (~P. AVLL
TOTAL ~E.TT',,-t. '~5%'
SITE PLAN
WAS GROUND WATER S
ENCOUNTERED? '~F-<~ ~
P
E
IF YES, AT WHAT o ~
DEPTH7 ~-'~
Gross Net Depth to Net
Reading Date Time Time Water Drop
PERCOLATION RATE ~0 (minutes/inch)
TEST RUN BETWEEN ~ ~ i
-- FT AND ~f ~- ' FT
PERFORMED BY:
IMI
CERTIFIED BY: lOfIN IV[. [.AMBle, P.g. DATE:
4101 ARCTIC BLVD., SUITE 205
3aNCHORAGE, AK 99503
SOILS LOG
MUNICIPALITY OF ANCHORAGE
'® DEPARTMENT OF HEALTH AND ENVIRONMENTAL PROTECTION [] PERCOLATION
TEST
!: 825 L. Street, Anchorage, Alaska 99501 264-4720
.... SOILS LOG - PERCOLATION TEST
PERFORMED FOR:
DATE PERFORMED:
BORING #3
{/I
SLOPE SITE PLAN
1
2
3
4
5
6
~E ,T
=EEl
7
8
9
10
11
12
13
14
15
16
17
18
19
20
SANPY ~ ~.AV FJ_L_ '¢ ~lUa'
COMMENTS
PERFORMED BY:
WAS GROUND WATER S
ENCOUNTERED? Y,~__S L
O
P
E
IF YES, AT WHAT
DEPTH?
Gross Net Depth to Net
Reading Date Time Time Water Drop
PERCOLATION RATE
(minutes/inch)
TEST RUN BETWEEN FT AND -- FT
JOHN M LAMBE, P,E.
CERTIFIED 8~'4 ........ ' .......... ~[~1' E:
ANCHOIIACE, ~ 99503
[907) ~76-4113
PERFORMED FOR:
LEGAL DESCRIPTION:
MUNICIPALITY OF ANCHORAGE
DEPARTMENT OF HEALTH AND ENVIRONMENTAL PROTECTION
825 L. Street, Anchorage, Alaska 99501 264-4720
SOILS LOG - PERCOLATION TEST
JERRY GREEN
DATE PERFORMED:
TRACT C-1, MOUNTAIN AIR ESTATES, ADDITION #2
· SOILS LOG
· PERCOLATION
TEST
BORING #4
6/11/81
1
2
3
4
§
6
7
8
9
10
Brown SANDY GRAVELLY SILT, ML
wet
Brown SILTY SANDY GRAVEL, GM
moist
Frequent Cobbles
Boulder @ 4.0'
Grey SILTY SANDY GRAVEL, GP-GM
moist
Random Cobbles
SLOPE
SITE PLAN
SEE Ai'TA( HE[ I',t p
11
12
13
WAS GROUND WATER YES ~
ENCOUNTERED?
0
P
E
IF YES, AT WHAT
DEPTH? 15.75 '
14
15
16-
17
18
19-
20-
COMMENTS
Cobbles @ 15.0'
Boulder @ 15.0'
Grey SILTY SANDY
GRAVEL, GM
saturated
Boulder @ 17.5'
Total Depth of
Boring - 17.5'
Gross Net Depth to Net
Reading Date Time Time Water Drop
21-1/4" 6/11/81 10:27 15-1/4" -44-1/2"*
62.0" 6/11/81 10:57 30 min. 56.0" 40-3/4"
12-1/2" 6/11/81 10:58 1 min, 6-1/2" -50-1/2"
53.0" 6/11/81 11:27 29 min. 47.0" 40-1/2"
62-1/2" 6/11/81 11:57 30 min. 56-1/2" 10-1/2"
23-3/4" 6/11/81 11:59 2 min. 17-3/4" -38-3/4"*
57-1/2" 6/11/81 12:27 28 min. 51-1/2" 33-3/4"
27-1/2" 6/11/81 12:28 i min. 21-1/2" -30.0"*
52-1/2" 6/11/81 12:57 29 min. 46-1/2" 25.0"
65-3/4" 6/11/81 1:25 28 min. 59-3/4" l~-l/4"
PERCOLATION RATE ~ (minutes/inch)
TEST RUN BETWEEN 4.0 FT AND 5'0 FT
PERCOLATION HOLE WAS DRY TO 59-3/4" BELOW GROUND. *ADDFD WATFR - TOTAl
WATER ADDED, 163-3/4". TOTAL DROP IN 3 HOURS - 163-3/4" OF WATER.
PERFORMED BY:
Mark Hall
CERTI FI E [ ~ ~j, ,~_.___.~ DATE:
Ji'l
AND ASSOCIATES
JOHN M. LAMBE, P.E.
PERFORMED FOR:
LEGAL DESCRIPTION:
MUNICIPALITY OF ANCHORAGE
DEPARTMENT OF HEALTH AND ENVIRONMENTAL PROTECTION
825 L. Street, Anchorage, Alaska 99501 264-4720
SOILS LOG - PERCOLATION TEST
JERRY GREEN
DATE PERFORMED:
TRACT C-1, MOUNTAIN AIR ESTATES, ADDITION #2
SOILS LOG
· PERCOLATION
TEST
BORING #5
6/11/81
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
2O
Brown SILTY SANDY GRAVEL, GM
moist
Frequent Cobbles
Brown SILTY SANDY GRAVEL, GP-GM
moist
SLOPE
Frequent Cobbles
Cobbles @ 11.0~
SITE PLAN
SE~ A' TA(:HEI M~,P
Brown SILTY SANDY
GRAVEL, GM
wet-saturated
Brown SILTY SANDY
GRAVEL, GP-GM
wet
TOTAL DEPTH OF
BORING - 20.0'
WAS GROUND WATER S
ENCOUNTERED? YES ~
P
E
IF YES. AT WHAT 16,5 '
DEPTH?
Gross Net Depth to Net
Reading Date Time Time Water Drop
12.0" 6/11/81 10:22 12.0" -40.0"*
43.0" 6/11/81 10:52 30 min. 43.0" 31.0"
8.0" 6/11/81 10:53 I min. 8.0" -35.0"*
42.0" 6/11/81 11:22 29 min. 42.0" 34.0"
17-3/4" 6/11/81 11:24 2 min. 17-3/4" -24-1/4"*
43-1/2" 6/11/81 11:52 28 min. 43-1/2" 25-3/4"
10-3/4" 6/11/81 11:53 I min. 10-3/4" -32-3/4"*
42-1/2" 6/11/81 12:22 29 min. 42-1/2" 31-3/4"
49-1/2" 6/11/81 12:52~ 30 min. 49-1/2" 7.0"
52'!Drv 6/11/81 1:20 28 min. 52" Drv 2-1/2"D~
COMMENTS PERCOLATION HOLE WAS DRY TO 52" BELOW GROUND.
ADDED - 132". TOTAL DROP IN 3 HOURS - 50" OF WATER
PERFORMED BY: Mark Hall
Y
PERCOLATION RATE 5 (minutes/inch)
TEST RUN BE]~NEEN 4,0 FT AND 4,5 FT
*ADDED WATER. TOTAL WATER
CERTIFIII~i ............ ~E:
JOHN M. LAMBI~, p.F:..
,ilO1 ARC~FIC BLVD.. SUtT~ ~
PERFORMED FOR:
LEGAL DESCRIPTION:
MUNICIPALITY OF ANCHORAGE
DEPARTMENT OF HEALTH AND ENVIRONMENTAL PROTECTION
825 L. Street, Anchorage, Alaska 99501 264~4720
SOILS LOG - PERCOLATION TEST
JERRY GREEN DATEPERFORMED:
TRACT C-1, MOUNTAIN AIR ESTATES, ADDITION #2
· SOILS LOG
· PERCOLATION
TEST
BORING #6
6/11/81
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
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COMMENTS
PERFORMED BY:
Brown SILTY SANDY GRAVEL, GM
moist
Boulder @ 5.0'
Boulder @ 10.5
Boulder @ 11.0
Boulder @ 12.0
Boulder @ 14.0
TOTAL DEPTH OF
BORING - 14.0'
SLOPE SITE PLAN
S~E STTJ~CHED [AP
WAS GROUND WATER
ENCOUNTERED? N0
IF YES, AT WHAT
DEPTH?
Gross Net Depth to Net
Reading Date Time Time Water Drop
15-1/4" 6/11/81 10:17 - 9-3/4" -32-3/4"*
29-1/2" 6/11/81 10:47 30 min. 23-1/2" 14-1/4"
34.0" 6/11/81 11:17 30 min. 28.0" 4-1/2"
37.0" 6/11/81 11:47 30 min. 31.0" 3.0"
39.0" 6/11/81 12:17 30 min. 33.0u 2.0"
40.0" 6/11/81 12:47 30 min. 34.0" 1.0"
41-3/4" 6/11/81 1:17 30 min. 35-3/4" 1-3/4"
42-1/2"'6/11/81 1:47 30 min. 36-1/2" 3/4"
43-1/2" 6/11/81 2:17 30 min. 37-1/2" 1.0"
PERCOLATION RATE 30 (minutes/inch)
TEST RUN BETWEEN 3.0 FT AND . 3.5 FT
PERCOLATION HOLE WAS DRY TO 42.0" BELOW GROUND, *ADDED 32-3/4" OF WATER,
Mark Hall
CERTIFIED BY: ]f)l~Nl M. LAMBE, P.E. DATE:
4.101 ARCTIC BLVD., SUIT~ ~
AN'CHOP, AGE, AK 99503 '
· SOILS LOG
MUNICIPALITY OF ANCHORAGE
DEPARTMENT OF HEALTH AND ENVIRONMENTAL PROTECTION
825 L. Street, Anchorage, Alaska 99501 264-4720
SOILS LOG - PERCOLATION TEST
· PERCOLATION
TEST
BORING #7
PERFORMED FOR:
LEGAL DESCRIPTION:
JERRY GREEN DATE PERFORMED:
TRACT C-1, MOUNTAIN AIR ESTATES, ADDITION #2
7/9/81
1
2
3
4
5
6
7
8
9
lO
11
12
13
14
15
16
17
18
19
2o
COMMENTS
Brown SILTY SANDY GRAVEL, GP-GM
moist
Random Cobbles
Brown SILTY SANDY GRAVEL, GM
saturated
Frequent Cobbles
SLOPE SITE PLAN
SEE AlTA[HE[ M~P
Cobbles @ 12.0'
WAS GROUND WATER S
ENCOUNTERED? YES
L
O
P
E
IF YES, AT WHAT 9 · 75 i
DEPTH?
--TOTAL DEPTH OF
BORING - 17.5'
Gross Net Depth to Net
Reading Date Time Time Water Drop
29-5/8" 7/9/81 8:37 - -9-7/8"*
37-1/4" 7/9/81 9:07 30 min. 7-5/8"
37-1/4" 7/9/81 9:37 30 min. 18-3/4"*
39.0', 7/9/81 10:07 30 min. 1-3/4"
37-1/4" 7/9/81 10:37 30 min. 8-1/4"*
37-3/8" 7/9/81 11:07 30 min. 1/8"
37-1/4" 7/9/81 11:37 30 min. 7-1/2"*
37-1/4'! 7/9/81 12:07 30 min. 0.0"*
37-1/4" 7/9/81 12:37 30 min. 6.0"
PERCOLATION RATE
TEST RUN BETWEEN 2.25
PERCOLATION HOLE WAS DRY TO 36" BELOW GROUND.
5 (minutes/inch)
FT AND 3.0 FT
WADDED WATER.
TOTAL WATER
PERFORMED BY:
ADDED - 52-1/4"
Mark Hall
TOTAL DROP OF WATER - 50"
CERTIFIED BY:
I
~. AMB~ AND ASSOCIATES
am'l
JO~N u
,~l. O1 AR~IC BL~., SU~ ~'
~CHO~CE, ~ ~
PERFORMED FOR:
LEGAL DESCRIPTION:
MUNICIPALITY OF ANCHORAGE
DEPARTMENT OF HEALTH AND ENVIRONMENTAL PROTECTION
825 L. Street, Anchorage, Alaska 99501 264-4720
SOILS LOG - PERCOLATION TEST
JERRY GREEN
· SOILS LOG
[] PERCOLATION
TEST
BORING #8
DATEPERFORMED: 6/8/81
TRACT C-1, MOUNTAIN AIR ESTATES, ADDITION #2
5
6
7
8
9
10
11
12
13
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15
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17
18
19
2O
jLq~_
!!
!
..
':i~.:.::
,:,ii
','.'Si:
.':.'.'t-':'.
~,.7.~:'.
Reddish Brown SILTY SANDY GRAVEL
moist
Random Cobbles
Brown SILTY SANDY GRAVEL, GM
moist
Boulder @ 2.0'
Boulder @ 3.0'
Brown SILTY SANDY GRAVEL, GP-GM
moist
Boulder @ 5.5'
Random Cobbles
Total Depth of
Boring - 17.5'
COMMENTS
PERFORMED BY:
72-ooa f6/79)
SLOPE SITE PLAN
SEE .TT2CHED IAP
WAS GROUND WATER S
ENCOUNTERED? NO L
O
P
E
IF YES, AT WHAT
DEPTH?
Gross Net Depth to Net
Reading Date Time Time Water Drop
PERCOLATION RATE
TEST RUN BETWEEN
(minutes/inch)
FT AND __ FT
Iq L AMBE AND ASSOCIA'rES
ju~m ~,t. LAM/IE, P.E.
CERTIFIED BY:,~01 ARCTIC BLVD..
ANCHORAGE, AK 99503
(W'0
in
MUNICIPALITY OF ANCHORAGE
DEPARTMENT OF HEALTH AND ENVIRONMENTAL PROTECTION
825 L, Street, Anchorage, Alaska 99501 264-4720
SOILS LOG - PERCOLATION TEST
· SOILS LOG
[] PERCOLATION
TEST
BORING #9
PERFORMED FOR:
LEGAL DESCRIPTION:
JERRY GREEN DATE PERFORMED:
TRACT C-1, MOUNTAIN AIR ESTATES, ADDITION #2
6/8/81
,ir 4
1F-F
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
2O
COMMENTS
Brown QRGANIC SILT, OL
moist, wet
Brown GRAVELLY SILT, ML
moist
Gravelly @ 1.5'
Brown SILTY SANDY GRAVEL, GM
moist
Boulder @ 3.5'
Brown SILTY SANDY GRAVEL, GP-GM
to GM, moist
Brown SILTY SANDY GRAVEL, GM
moist
Boulder @ 10.5' WASGROUND WATER
ENCOUNTERED?
SLOPE SITE PLAN
YES s
L
S[]E fTTI,CH[D [AP
o
Random Cobbles ~F YES, ATWHAT E
DEPTH? 17.5'
Total Depth of
Boring - 17.5',
Gross Net Depth to Net
Reading Date Time Time Water Drop
PERCOLATION RATE
TEST RUN BETWEEN
FT AND
(minutes/inch)
-- FT
PERFORMED BY:
CERTIFIED By:JOHN M. LAMBE, P.E. DATE:
~01 ARCTIC BLVD., SOl~ ~
~CHO~GE, ~ ~
72-00S (6/79) ~"t
MUNICIPALITY OF ANCHORAGE
DEPARTMENT OF HEALTH AND ENVIRONMENTAL PROTECTION
825 L. Street, Anchorage, Alaska 99501 264-4720
SOILS LOG - PERCOLATION TEST
BI SOILS LOG
PERCOLATION
TEST
Boring #10
PERFORMED FOR:
JERRY GREEN
DATE PERFORMED: 6/8/81
LEGAL DESCRIPTION:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15-
16-
17-
18-
19
20
TRACT C-1, MOUNTAIN AIR ESTATES, ADDITION #2
SLOPE
PEAT, PT,
moist
Brown ORGANIC SILT, OL wet
B~own SILTY SAND, SM
saturated
Grey SILTY SAND, SM
Saturated
Brown ORGANIC SILT, OL
saturated
Brown PEAT, PT
wet
WAS GROUND WATER S
ENCOUNTERED? . YES °L
Brown Grey SILTY
SANDY GRAVEL, GM
saturated
Total Depth of
Boring - 20.0'
COMMENTS
PERFORMED BY:
SITE PLAN
IF YES, AT WHAT
DEPTH? 0.50I
Gross Net Depth to Net
Reading Date Time Time Water Drop
PERCOLATION RATE
(minutes/inch)
TEST RUN BETWEEN FT AND -- FT
IMI ..................
JOHN M. LAMBE. P.E.
4101 AltCTIG BLVD.~ SUITig
CERTIFIED BY: ~,~.~.~-,,~ ~- ~-~.~, DATE:
(907) g~6-4113
MUNICIPALITY OF ANCHORAGE
DEPARTMENT OF HEALTH AND ENVIRONMENTAL PROTECTION
825 L. Street, Anchorage, Alaska 99501 264-4720
SOILS LOG- PERCOLATION TEST
· SOILS LOG
· PERCOLATION
TEST
BORING #11
PERFORMED FOR:
OERRY GREEN
DATE PERFORMED: 6/11/81
LEGAL DESCRIPTION:
!
! !
1
1
2
3
4
5
6
7
8
9
lO
11
12
13
14
15
16
17
18
19
2O
COMMENTS
PERFORMED BY:
TRACT C-1~ MOUNTAIN AIR ESTATES, ADDITION #2
PEAT, PT
Cobbles @ 0.5~,
Brown SILTY SANDY GRAVEL, GM
moist
Frequent Cobbles
Boulder @ 3.5'
SLOPE
SITE PLAN
!EE AT1ACI ED MAI
WASGROUND WATER S
ENCOUNTERED? YES L
0
P
E
IF YES, AT WHAT
DEPTH? 8.0'
Gross Net Depth to Net
Reading Date Time Time Water Drop
10-1/2" 6/11/8] 10:10 10-1/2" -27-1/2"*
24.0" 6/11/8] 10:40 30 min. 24.0" 13-1/2"
30-1/4" 6/11/8] 11:10 30 min. 30-1/4" 6-1/4"
13-1/4" 6/11/8] 11:11 i min. 13-1/4" -17.0"**
23-3/4" 6/11/8] 11:40 29 min. 23-3/4" 10-1/2"
3D-3/4'~ 6/11/8] 12:10 30 min. 30-3/4" 7,0"
35-1/4'~ 6/11/8] 12:40 30 min. 35-1/4" 5.0"
14-3/4" 6/11/8] 12:41 1 min. 14-3/4" -2~-l/2,,*~
23.0'! 6/11/8] 1:10 29 min. 23.0" 8-1/4"
30-1.4 6/11/8] 1:40 30 min. 30-1/4" 7-1/4"
35-1/4"! §/11/8] 2:10 30 min. 35-1/4" 30.0"
Total Depth of
Boring - 15.5'
PERCOLATION RATE ~ (minutes/inch)
TEST RUN BETWEEN 2.5 FT AND 3.0 FT
PERCOLAT[0N HOLE WAS DRY TO 38" BELOW GROUND, *ADDED 27-1,2" OR WATER.
H
**ADDED 17" OF WATER. **WADDED 20-1/4" OF WATER J M AND ^SSOCiA S
JOHN ~M~...LAMBE, P.E.
Mark Hal l CERTIFIED BY: 4161 A~,C~--~)~rL~., 3Ui~ 205
ANCHOF~CF., ~ ~
~§~// '270.4113 ,4 m'~
MUNICIPALITY OF ANCHORAGE
DEPARTMENT OF HEALTH AND ENVIRONMENTAL PROTECTION
825 L Street, Anchorage, Alaska 99501 264-4720
SOILS LOG - PERCOLATION TEST
· SOILS LOG
[] PERCOLATION
TEST
BORING #12
PERFORMED FOR:
JERRY GREEN
DATE PERFORMED: 6/9/81
LEGAL DESCRIPTION:
1
2
3
4
5
6
7
8
9
TRACT C-1, MOUNTAIN AIR ESTATES, ADDITION #2
Brown SILTY SANDY GRAVEL, GM
Brown SILTY SANDY GRAVEL, GP
moist
Brown SILTY SANDY GRAVEL, GP~GM
moist
Random Cobbles
SLOPE SITE PLAN
Browo SILTY SANDY GRAVEL, GP
m01st
Random Cobbles
SI E I,TT~CH[:D tAP
10-
11
12
13
14
15
16
17
18
19
2O
COMMENTS
Brown SILTY SANDY
GRAVEL, GP-GM
moist
Total Depth of
Boring - 15.0
WAS GROUND WATER NO S
L
ENCOUNTERED?
O
P
E
IF YES, AT WHAT
DEPTH?
Gross Net Depth to Net
Reading Date
Time Time Water Drop
PERCOLATION RATE
TEST RUN BETWEEN
FT AND
(minutes/inch)
__ FT
PERFORMED BY:
CERTIFIED BY: JOHN ~. ~MB~, ~.~. DATE:
410l ABCT[C BLVD., S~ ~
ANCHO~GE, AK ~
MUNICIPALITY OF ANCHORAGE
DEPARTMENT OF HEALTH AND ENVIRONMENTAL PROTECTION
825 L. Street, Anchorage, Alaska 99501 264-4720
SOILS LOG - PERCOLATION TEST
· SOILS LOG
[] PERCOLATION
TEST
Boring #13
PERFORMED FOR:
LEGAL DESCRIPTION:
JERRY GREEN DATE PERFORMED:
TRACT C-1, MOUNTAIN AIR ESTATES~ ADDITION #2
6/9/81
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20.
COMMENTS
Gres SILT, ML
moist
Brown SILT, ML
moist
Brown SILTY CLAY, CL-ML
wet, plastic
Gravelly @ 5.0'
Brown SILTY SANDY GRAVEL, GM
moist
Random Cobbles
SLOPE SITE PLAN
EE AT'AC~ED MAI
WASGROUND WATER
ENCOUNTERED?
IF YES, AT WHAT
Brown GRAVELLY SILT,~TM
moist
Total Depth of
Boring 15.0'
S
YES L
0
P
E
12.75'
Gross Net Depth to Net
Reading Date Time Time Water Drop
PERCOLATION RATE
(minutes/inch)
TEST RUN BETWEEN FT AND __ FT
J~.AMBE AND ASSOCIATES
PERFORMED BY:
JOHN M. LAMBE,
CERTIFIED BY:4]O! ARI'TI'IC _~LVD.,
ANCHORAGE,
lfi
MUNICIPALITY OF ANCHORAGE
DEPARTMENT OF HEALTH AND ENVIRONMENTAL PROTECTION
825 L. Street. Anchorage, Alaska 99501 264-4720
SOILS LOG - PERCOLATION TEST
· SOILS LOG
[] PERCOLATION
TEST
Boring #14
PERFORMED FOR:
LEGAL DESCRIPTION:
JERRY GREEN DATEPERFORMED:
TRACT C-1, MOUNTAIN AIR ESTATES, ADDITION #2
6/25/81
1
2
3
4
5
6
7
8
9
10
11
12
13
14-
15-
16
17,
18-
19
2o
COMMENTS
PERFORMED BY:
-- Brown SILT, ML, wet
.Dark Brown ORGANIC SILTY PEAT,PT
wet
Brown ORGANIC SILT, OL
wet
Brown SANDY GRAVELLY SILT, ML
wet,
Total Depth of Boring - 5.0'
SLOPE SITE PLAN
.~EE AT1ACt[ED MAI
WAS GROUND WATER
ENCOUNTERED?
IF YES, AT WHAT
DEPTH?
1.75'
Reading Date Gross Net Depth to Net
Time Time Water Drop
PERCOLATION RATE
(minutes/inch)
TEST RUN BET1/VEEN FT AND FT
CERTIFIED B',~J'01 ARCTIC BLVD., S~ ~
.............. ~. DATE:
itl
MUNICIPALITY OF ANCHORAGE
DEPARTMENT OF HEALTH AND ENVIRONMENTAL PROTECTION
825 L. Street, Anchorage, Alaska 99501 264-4720
SOILS LOG- PERCOLATION TEST
· SOILS LOG
[] PERCOLATION
TEST
BORING #15
PERFORMED FOR:
LEGAL DESCRIPTION:
JERRY GREEN DATEPEREORMED:
TRACT C-1, MOUNTAIN AIR ESTATES, ADDITION #2
6/25/81
--Brown GRAVELLY SILT, ML
wet
PEAT, PT
wet
Grey ORGANIC SILT, OL
wet-saturated w/fiberous
organics.
Grey SAND seams @ 5.0~
SLOPE SITE PLAN
.~-'E qT1 1CFED MAI
10
11
12
13
14-
15-
16-
17
18
19-
2o-
COMMENTS
PERFORMED I~IY:
Grey SANDY GRAVELLY
SILT, ML
Cobbles @ 12.0'
Boulder @ 12.5'
--Total Depth of
Boring - 12.5'
WAS GROUND WATER YES ~
ENCOUNTERED?
O
P
E
IF YES, AT WHAT
DEPTH? 0.75 '
Reading Date Gross Net Depth to Net
Time Time Water Drop
PERCOLATION RATE
TEST RUN BETWEEN
FT AND
(minutes/inch)
__ FT
Am. ~iC BLVD., SUFi'E
ANCHORAGE, AK 99503
(oArg) '270.4113
MUNICIPALITY OF ANCHORAGE
DEPARTMENT OF HEALTH AND ENVIRONMENTAL PROTECTION
825 L. Street, Anchorage, Alaska 99501 264-4720
SOILS LOG - PERCOLATION TEST
· SOILS LOG
[] PERCOLATION
TEST
BORING #16
PERFORMED FOR:
JERRY GREEN
DATE PERFORMED: 6/25/81
LEGAL DESCRIPTION:
1
2
3
4
5
6
7
8
9
10
11
12
13
--Brown ORGANIC SILT~ OL
w/fiberous organics
TRACT C-1, MOUNTAIN AIR ESTATES, ADDITION #2
SLOPE
Black PEAT, PT
w/organic SILT, moist
Brown SANDY GRAVEL, GP-GM
-saturated
Brown SILTY SANDY PEAT, PT
moist to wet
Grey SILT, ML, wet
WAS GROUND WATER S
Grey SILTY SANDY GRA~J~U~T~RED? YES L
0
moist to wet P
E
IF YES, AT WHAT
DEPTH? 1,25'
14
15
16
17
18
19
20
COMMENTS
PERFORMED BY:
SITE PLAN
SEE !AT1AC~ED MAF
72-OO8 [6/79~
Reading Date Gross Net Depth to Net
Time Time Water Drop
PERCOLATION RATE
TEST RUN BETWEEN
Total Depth of
Boring - 15.0'
(minutes/inch)
FT AND -- FT
J-~AMBE AND ASSOCIATES
jOiiN M. LAMBE, ?.-'~-
CERTIFIED 5¥:4101 ABC'TIC BLVD.,
ANCIIOI1ACE, Ali. 99503
(9O?) ~0-41i3
MUNICIPALITY OF ANCHORAGE
DEPARTMENT OF HEALTH AND ENVIRONMENTAL PROTECTION
Pouch 6-650, Anchoreg~, Alaska 99502 276-222~f
SOILS LOG - PERCOLATION TEST
[] SOILS LOG
[] PERCOLATION
TEST
BORING #17
PERFORMED FOR:
JERRY GREEN
DATE PERFORMED: 6/25/81
LEGAL DESCRIPTION:
1
2
3
4
5
6
7
8
9-
10
11
12
13-
14-
15-
16-
17
18
19-
20-
COMMENTS
PERFORMED BY:
TRACT C-1, MOUNTAIN AIR ESTATES: ADDITION #2
Brown Fiberous SILT, OL
Brown' PEAT, PT
Brown ORGANIC SILT, OL
moist w/fiberous organics
Brown SILT, ML
dry to moist
Brown SAND layer, SPJSM @ 5.0'
Cobbles @ 6.0'
Grey-Brown SANDY SILT, ML
saturated
Grey SANDY GRAVELLY SILT, ML
wet to Grey CLAYEY GRAVELLY
SIlT, CL-ML, wet
Total Depth of Boring - 10.0'
WAS GROUND WATER
ENCOUNTERED?
SLOPE
SITE PLAN
SEE AITACHE[ F~P
IF YES, AT WHAT
DEPTH?
S
YES L
O
P
E
4.6'
Gross Net Depth to Net
Reading Date Time Time Water Drop
PERCOLATION RATE
(minutes/inch)
TEST RUN BET~NEEN FT AND .__ FT
~t, AMBE AND A~SOCIATES
JOHN M. LAMBE, P.E.
CERTIFIED aY4101 AR~C BLVD., SUI~:
ANCHO~GE, AK ~
· SOILS LOG
MUNICIPALITY OF ANCHORAGE
[] PERCOLATION
DEPARTMENT OF HEALTH AND ENVIRONMENTAL PROTECTION
TEST
825 L. Street, Anchorage, Alaska 99501 264-4720
SOILS LOG- PERCOLATION TEST BORING #[8
PERFORMED FOR:
JERRY GREEN DATE PERFORMED:
LEGAL DESCRIPTION:
1
2
3
4
5
6
7
8
9
lO
11
12
13
14
15
16
17
18
19
20
COMMENTS
PERFORMED BY:
TRACT C-l, MOUNTAIN AIR ESTATES, ADDITION #2
SLOPE SITE PLAN
Black ORGANIC PEATY SILT, OL
wet to saturated
water running into boring @ 1.5'
Brown SILT, ML
wet
Total Depth of Boring - 5.0'
S[E TT/CHIiD AP
WASGROUND WATER S
ENCOUNTERED? YES L
O
P
E
IF YES, AT WHAT 0.25'
DEPTH?
Gross Net Depth to Net
Reading Date Time Time Water Drop
PERCOLATION RATE
(minutes/inch)
TEST RUN BETWEEN FT AND __ FT
~tMBE AND ASSOCIATES
JOHN M. LAMBF-,, P.E.
CERTIFIED BY:410! A.n.C'?!C BT~VI~..qllI'T~,~
&NCHOtlACE, AI~ 09503
(oo~) ~7641t3
20
~ ~ GFIAVEL$ I NO FINIS
GP~'1~'~:1': POOILY O~ADED GRAVELS, OIAVEL -
IS ~OEI ~N ~VE~ W~
C~Y ~X~ES
~ ~ CLaN ~N~ SW · · WELL GRAND SAN~, G~VELLY
ts s~n ~N ~N~ w~m ~1,~ ~x~Es
! NO. 4 II~l IlZl ~!1 l~ FINES
~ L~O LI~T L~$ ~AN ~ ~ I I I I
~ ~ M. I llll'N~OANIC'IL~, ~oc.~
-" II I II ~ ~ ~ ,~L~,~, ~nc
~ILTS AND CLAY~
HIGHLY OHGANIC ~OIL~ PI ~P~TANDOm~IHIGHLY~NIC$~
UNIFIED ~OIL CLASSIFICATION ~Y~TEM
ComprelllOn
'Undl.turbed" Sample I LVS 700 Laboratory Vane Sheer
I
I
KEY TO TEST 0ATA
JOHN M LAMBE P.E OtL CLASSIFICATION CHA T PLATE
KEy TO TE~T DATA 21
~b No. Appr: Date
MA,X)R DMSiON$ J TYFqCAL NAMES
~ THAN HAL~ J ~JJlJJ~lSIt,,Y O~AVELS, PO<~LY
lAN DS NO FINES ~lp POORLY GRADED IANDJ, O~LAVELLY JAN(~
ts s~n ~N ~Nm w~m pj.~ ~x~Es
SC
C~Y S ~ WITH SUGHT
CLAY~
r//J L~N c~Ys
SILTS AND CLAY~
HIGHLY OROANIC SOILS PI ~P~TANDOmIIHIGHLY~NICI~
SOIL AND MATERIALS
ENGINEERING
AND TESTING
John M. Lambe, P.E.
4101 Arctic Boulevard · Suite 205 ° Anchorage, Alaska 99503
SOIL CLASSIFICATION CHART
907-276-4113
OR
SILT
\
OR\ CLAY
o/
0 I0
\
\ \
;~_AY E Y
\
OR
I I'TY
SAND
\
\
SILTY
\
\ \
SANDY \GRAVEL
\ \
GRAVELLY \SAND
20 30 40 50 60 70 80
GRAVEL (-1'~4SCREEN) % BY WEIGHT
CORPS OF ENGINEERS FROST-DESIGN SOIL CLASSIFICATION
AND USCS EQUIVALENT GROUPING' P[RCENTAG£
FINER. Ti{AN TYFIEAL SOIL TYPES
~OST 0.02 M ~.
GROUP SOIL TYPI[ mY WEIGHT
AVE I
UJNDER UNIFIED SOIL
CLA. SSI F ICATION SYS'~EM
9O
FI
F3
F4
Gravelly soils 3 to 10 GW, GP. GW-GM, GP-GM
(a) Gravelly soils !0 to 20 GM, GW-GM, GP-GM
(b) Sands 3 Io 15 SW. SP, SM, SW-SM, SP-SM
(a) Gravelly soils > 20 GM. GC
(b) Sands, except very fine > 15 SM, SC
silty sands
(c) Clays, PI ~' 12 -- CL CH
(a) A, II silts -- MI_, MH
(b) Very fine silty sands > 15 SM
(c) Clays, PI < 12 m CLCL-ML
(d) Varvcd clays and -- CL and ML;
other fine-grained, CL ML. and SM;
100
22
WATER LEVELS
BnR[NG
1
2
3
4
6
8
~O
13
15
17
6/10
11+
8+
3-
16
16
12+
9
10+
17.5
9"
8.5
14+
14.5+
6/11
10.5+
8+
3-
16
17
12+
9
10+
17.5
9"
8.5
13.75
14.5
6/17
10.5+
8+
17
18
10.5+
9.5
10
17.5
1.5
8.75
13.75
14.5
6/25
10.5+
7.75+
16.25
18
9.5+
11
10+
17.5
2
9
14
14
4
11
3.75
3
7/9
10.5+
7.75+
16.25
18.75
8.5+
14.5+
10+
18.5
3.25
10.25
14
14.25
4
7.5
4.25
1.75
7/21
10.~
7.75+
15.75
16
8+
2.5
17.5
1.25
8
14
12.75
2.5
1.25
2.75
0.25
7/27.
10.25+
7.25+
15.75
16.5
8.25+
9.75
9.75+
17.5
0.50
8.5
13.75+
14,0+
1.75
0.75
1.25
0.50
8/13
10.7((
7.3((
15.9
16.11
8.3(c
8.0
9.9(c
17.3
0.7
7.11
13.9(c
14.1(c
1.10
0.10
1.1
0.4
28