HomeMy WebLinkAboutLENNIE HEIGHTS LT 4
GREA,ER ANCHORAGE AREA BOR,.JGH
Department of Environmental Quality
3330 C Street
Anchorage, Alaska 99503
INSPECTION REPORT ON-SITE SEWAGE DISPOSAL SYSTEM
SEPTIC TANK:
DISTANCE ~1~~
FROM WELL
INSIDE LENGTH
MANUFACTURE q3~-~
INSIDE WIDTH
MATERIAL
LIQUID DEPTH
NUMBER OF
COMPARTMENTS
LIQUID CAPACITY___
GALLONS.
TILE DRAIN FIELD:
DISTANCE FROM WELL
NUMBER OF LINES
ABSORPTION AREA
FOUNDATION
DISTANCE BETWEEN LINES
SQ. FT. LENGTH OF EACH LINE
I}EPTH OF FILTER
DEPTH: TOP OF TILE TO FINISH GRADE
NEAREST LOT LINE
TOTAL LENGTH
OF LINES
TRENCH WID'FHI'/~:' IN. TOTAL EFFECTIVE
MATERIAL BENEATH TILE (I~ IN. ABOVE TILE ~/" IN.
WELL:
BUILDING
FOUNDATION__
CESSPOOL
APPROVED
_CONSTRUCTION
NEAREST
LOT LINE
OTHER SOURCES
DISAPPROVED __
NEAREST
SEWER LINE __
DEPTH
SEPTIC SEEPAGE
, TANK SYSTEM ....
REMARKS
DISTANCE FROM:
DISTANCES:
INSTALLED BY: '~.[. L.-'¢.-~0
SEWER LINE DEPTH:
PIPE MATERIAL'
LOT SLOPE:
REMARKS:
DIAGRAM OF SYSTEM
G.A.A.B.
Form LQ-032
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July 12, 1977
R&M NO. 751182
Lennie Construction, Inc.
SRA Box 902
Anchorage, Alaska 99502
Attention: Leonard Hogue
Subject: Soil Investigation for Sanitary Sewer System, Lot 4, Lennie
Heights Subdivision, Peter's Creek, Alaska
Dear ~. Hogue:
At your request of June 28, 1977, we conducted a subsurface soils
investigation at the proposed location of the sanitary sewer system on
the subject lot. The investigation complied with those procedures
required by the Municipality of Anchorage, Department of Health and
Environmental Protection.
This investigation which was accomplished on July 11, 1977, was conducted
within a backhoe trench which had previously been excavated to a depth
of 16.5 feet below the existing ground surface. The test location is
shown in attached Drawing A-01. All material exposed in the trench was
monitored by an experienced engineering geologist.
The soils encountered in the excavation are shown in the test hole log
in Drawing A-01. The symbols used in Drawing A-01 are explained in
Drawings B-01, & B-02. This log displays specific conditions encountered
at the test location. However, subsurface conditions may vary in other
parts of the lot without any apparent surficial evidence of the change.
Groundwater was not encountered. Bedrock was not encountered. At the
time the hole was excavated seasonal frost was not present, and permafrost
was not encountered.
A test hole was excavated to a depth of 1' within the trench. The top
of the test hole was approximately 5' below the original ground surface.
A percolation test was performed within the test hole at the depth shown
in the attached Table 1. All depths were measured from the top of the
hole. The data in Table 1 show average infiltration from the depths
indicated to the bottom of the hole. The measured percolation rate was
25 minutes per inch.
July 12, 1977
Mr. Leonard Hogue:
Page -2-
We appreciate this opportunity to be of service to you. Please contact
us if you have any questions concerning this letter or if we can be of
additional service.
Very truly yours,
R & M CONSULTANTS, INC.
Stephanie Hoag
Staff Geologist
SH/JMB/gld
Attachments:
Head, Earth Science Dept
Drawings A-01, B-01, B-02, Table 1
Lot 4, Lennie Heights Subdivision
Backhoe /
Trench
Not to Scale
All distances are approximate
and have not been measured
by survey methods.
SILTY GRAVELLY SAND w/
MA/qY COBBLES
Brown, Slightly Moist
0I
(sM)
SILTY GRAV]ELIjY SAND w/
M~Y COBBLES, TRACE CLAY
(SM)
Brown, Moist
9I
16.5'T.D.
Thi~ log represents subsurface soil
conditions within the backhoe trench
at the location shown.
See Drawings B-01 and B-02 for
explanation of symbols.
TRENCH LOG AND LOCATION
DIAGRAM
LENNIE CONSTRUCTION, INC.
IIF'B'
GRID:
PROd. NO 751182
OWG. NO. A-01
TIME
4:07
4:08
4:09
4:10
4:11
4:12
4:13
4:14
4:15
4:16
4:17
4:22
4:27
4:32
4:37
4:47
4:57
5:07
TABLE 1
PERCOLATION TEST
LENNIE CONSTRUCTION, INC.
R & M NO. 751182
ELAPSED
TIME
0
1
2
3
4
5
6
7
8
9
10
15
20
25
30
4O
50
60
FEET
.175
.2
.2
.2
225
225
225
225
225
25
25
25
275
3
3
325
35
375
FEET
0
.025
0
0
.025
0
0
0
0
.025
0
0
.025
.025
0
.025
.025
.025
TOTAL DROP 0.2 FEET OR
2.4 INCHES
25 MINUTES/INCH