HomeMy WebLinkAboutC STREET INDUSTRIAL Block 1 Lot 4
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HEALTH AND i:N"; , ',It r'2;,',,L i'¢:ROi-E( : ;:;
<Permit #: 820012
.January 31, 1983
TO: Permit Applicant
Subject: Lot 4 Block 1 C Street Industrial Park Subdivision
A permit issued by this department for an individual well
and/or on-site sewer system has expired as of December 31,
1982.
Permits are issued on a calendar year basis, as stated on
the permit, by authority of Municipal Ordinance.
If you have drilled the well, a well log needs to be sent
to this department for documentation of the installation
date and to close the permit.
If a private engineer inspected the installation of the
on-site sewer system, please have them send us the as-builts
for our files and documentation.
If there are any further questions, please call this office
at 264-4720.
Sincerel,~~_~ ~
Robert C. Pratt, R.S.
Acting Program Manager
Sewer and Water Program
RCP/ljw
enc: Copy of Permit
SWP/057
F'ERP! )..' T NO.
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,:; :::: 2,6'I (:I:.'L 2
LE~C:F!TZ(}N LOT 4 E,'LK 1 F: ST !.NDUSTRIFIL PFIRK
L_E ]~R_ '5RME R':E; HE, . v
2 7"7- E Ol 4
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F!',,,'Ft Z L.F!E;LE 'FO ! NSUF:.E F'F¢.C PER I NS;"FRLLF*t"i" I ON.
i' C ER T i F:"r' THf:IT
i: I F!H F'FIM!LiRF.: HITH THE F:E(;iUtREMENTS FOR ON-SiTE SEHERS'; RN[:' HELLS ~S SET
F"OF;:TH E:¥ THE NUNTE:IPF!LZT'¢ OF RNE:HORF!GE.
2: T. i.,.!ZLL Z.NS"f'RLL THE :S'*r':E;TEM !N RC:CORDFtNCE HZ'TH 'THE CODES:.
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H~LTH 2-:- E~%,' I ~.-m"-m~£qE~TflL F'~:mSITEC:T I m_--m~
[:,ATE I::OI"IF'LATNT OPENED'
[:,RTE COMPLAINT CLO-,E[.,'
COI"tF'LAIN]- CODE ' 04
AREA CODE'
NATURE' SEWAGE
F:LIRRENT [. I---,FU_.ITION F'END
CASE OFFICER' KENNE[>
REF' #1'
Li.'-iTC; 2A, 28., 2C "l~:"
L[:,AS THAT MR MIKE
REF #2'
ST INDUSTRIFIL _-~,UBD HAS ONE HOLDING TFINK (2000 GRL> SER',.,'INI-~ 3: B
GEORGE FILLOi.,IS TO C,',/ERFLOP.I RATHER THAN P,JMP
-1
0 x. ....
S3178
X
SEP £0 1973,
.AUG
INTRODUCTION
Our preliminary geologic and soils investigation ~vas c~nducted on the
Pohling property February 17th and 18th. The subject property consisting of approx-
· imately 40 acres, is located along the east side of G Street between 64th Street and
Dowling Road extension. Purpose of the investigation was to determine the extent ....
and depth of organics and general characteristics of underlyil~~ soild preparatory
sale or construction planning.
· FIELD INVESTIGATION ..
Surflcial geologic and soils conditions were exarnihed utilizing a
truck-mounted B-61 Mobil Drill outfitted with 6 inch hollow flight auger. A tOtal
of ten borings were completed on the tract with.spacing designed for Overall
coverage; Boring depths ranged from 10 to 15 feet sufficient to penetrate the
organic horizon and .sample underlying materials. Representat?o samples were
taken of underlying soils on each boring as indicated by Figu=es 2 and 3. Two
Standard Penetration tests were also taken to give an indt,~att,,n of soils bear',rog
capacity.
SITE CONDITIONS
VEGETATION DRAINAGE TOPOGRAPHY
Vegetation within the low lying Westerly portion of the tract consists
primarily of '~ae typical spaghum moss formed tn'a swampy nq. uskeg environment.
Stunted black spruce, characteristic of poor drainage, fringes the swamp area
abutting' the small ridge to the east. The ridge or topographic high trending
southeasterly through the property is heavily overgrown with larger. White spruce
and'random birch. Aider forms a thick new growth along the.man-made drainage
di~cli ami wcstc~'ly slope at Campbell Creek.
Drainage of the swamp has been Somewhat enhance(~ by the afore-
me~tioned man-made ditch. ' This transects the small ridge thus directing runoff
toward,Campbell Creek rather than being entrapped in the depression surrounding
Tine Lake. Nevertheless, drainage in the swamp area is pqor (vith standing water
observed at some 3 1/2 feet in hole BH-3 and a high moisture content evidenced
in the other swamp borings. Conversely, drainage on the ~m'a!l ridge and
westerly slope toWard Campbell Creek is good to fair. .
GENERAL GEOLOGY
Geologic formations in this area are linked to s0me~.hat'complex
P~e-Wisconsin ground morainal, glaciofluvial and glaciolac'u'strine deposition.
The western portion of the front is masked by recent swamp deposits x:esulting
from gradual organic filling of the Tine Lake depression."
The coarse sandy gravel encountered in BH-3 at 'a depth .of 12 feet is
indicative of ground morainal deposition whit:, prObably £(~rm~ an underlym, g blanket
throughout the area. Overlying this is a cor,~ormable silt to ~layeY silt formed by ,
of silty sand to gravelly silty sanCk
SUBSURFACE CONDITIONS
Organic deposits along the property's ~es':e:-n m.arg{n range between
6 and 7 feet in depth. These are a product of decomposition of swamp or muskey
vegetation generally dark brown and fibrous in appearance and with a high water
content. The organic contact slopes gently upward to the e~st. In the wooded area
the organics form a covering of 2 feet or less, are gray to lighter brown in color
and have a siltsr admixture.
!
I-
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The lake deposited sills and clayey silts occur dire. ctly beneath the
swampy area. Boring No. 3 shows that in the northwest corner ti~ese have a
' vertical section of some 6 feet. Elsewhere the sequence whs not penetrat'ed..
However, it was encountered underlying the nose of the small ridge in the vicinity
of BH-8 and BH-10 at a depth of 6 1/2 feet. This same deposit was als. o found to
underlie a thin organic covering in the southeasterly corner.of the property. A
Standard Penetration test of the silts taken on BH-8 indicates a soft consistency,
or in other words, poor foundation conditions. The small (~blo'ng ridge consists
ahnoSt uniformly of a'fine silty sand. Occasionally some small gravels were
encountered as noted on the Log for BH-5. . " ' ·
Frost penetration at the time of our investigation was in the order of
1 1/2 to 1 3/4 feet. This ~hallow penetration is undoubtedly due to this years
deep snow cover as. the silts, and to a lesser extent, the Sil'.ty sands along the
ridge are frost-susceptible.
CONCLUSIONS ANrD RECOMMENDATIONS
On the basis of our investigation the "Pohling P~Zop~rty" is shown to
exhibit variable subsurface conditions.
Approximately 50 to 60 percent of the area consists.of swampy organic
deposits (Qs) overlying lacustrine silts and clayey silts. The remainder consists
-of the ridge crest silty sands (Qp) at least partially underlain b.y the lacustrine
silts and near surface clayey silts (Qgl) which occur along the southeast ~orner
of the property. The ground morainal sandy gravels found in'BH-3 prob~ly, exist
at depth thiough the property forming a base for the other deposits.
Based on a Standard Penetration test of the lower gro.und morainal
material, we conclude that the bearing capacity will be in the or. der of 4000 pounds
per square foot. However, the depth of this material may' make it impractical fox'
foundation use with the exception of larger high rise structi~rSs or pil..e foundations,
The silts and clayey silts are frost-susceptible and-otherwise unsuit-
.able for foundation purposes. Dependent upon the intended uso these would
require partial to complete removal with replacement of engineered fill.
Otherwise pile foundations penetrating to the underlying gr~ivdls would be requix'ed.
The silty sands along the ridge are adequate for spread footing
construction with an estimated bearing capacity in the range of 3000 pounds per
square foot. However, due to the silt content and general fros~ penetration in
the Anchorage area we would recommend a minimum footirig.depth of'4, 0 to 4, 5
feet. Caution should also be used to the southwest where the silty sand thins
out and is underlain by the lacustrine silts and clayey stirs.
We would also recommend that at such time. as construction plans are
formulated we be notified for assistance in foundation design location of structux.es
and cost analysis.
Februar~ Z~i, 1977
~le ~rre11, I~anager
Anchorage Sewer Ut111 ty
3000 Arcttc Boulevard
Anchorage, Alaska 99503
subject: "~.~ lndmt~i~ L.I.,~ 7S Sdudub A
~ar Dale:
Thts Department has rev~es~ed Subject as submitted and finds ~e are
concerned ~lth the 8 tn lateral on UA" Street that's tns~de the
radtus of what may be a send- or public ~ell. Thts condition also
ts proposed on Do~ltng Road,
Can you see any~my to ~ork thts unsuitable condition t~ meet wtth
Municipality standards?
Stnmrely,
John t/. ~nn
Envt romental Engineer1 ng
~L:lmp
cc: Roll Stetckland - OHEP
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LOT SIZE
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FORTFt E:.,. THE I',ILIN
:2: ]: PJiL..L tNSTRL. L THE '.:~/~
CUTLER
Engineers
Surveyors
October 24, 1974
DAlE L. CUTLer
ANCHORAGe, ALASKA
274-7711
New Address:
6361 Nielson Way
Greater Anchorage Area Borough
Department of Enviormental Qualty
3330 "C" Street
Anchorage, Alaska
George Construction
Box 6430
Anchorage, Alaska
Re: Soils and Drainage Lot 1-F Block 2, C Street Industrial Subdivision
George Construction
Attention: Mr. Ralph Strickland - Mr. Mike George
Dear Sirs:
I have inspected the ground and soils conditions at the above location and
have found the following general conditions to exist.
Depth - Compacted granular material (sand) 3 to 4 feet
Depth - Normal water table 4 to 5 feet
Depth - Blue clay-silty sand - below 4 feet (impervious to
surface drainage)
Re spectfully,
ENGINEERING SERVICES
Dale L. Cutler, P.E./L.S.
DLC:v