HomeMy WebLinkAboutT15N R1W SEC 18 LT 198B0C
Municipality of Anchorage Page 1 of 3
Development Services Department
On -Site Water & Wastewater Program
4700 South Bragaw Street
P.O. Box 196650 Anchorage, AK 99519-6650
www.ci.anchorage.ak.us (907) 343-7904
ON -SITE WASTEWATER DISPOSAL SYSTEM AND/OR WELL INSPECTION REPORT
Permit Number: SWO10165
PID Number: 051-232-32
Name:
Eric and Patty Thomson
Wastewater System: New
Address:
P.O. Box 874 Eagle River AK 99577
ABSORPTION FIELD
Phone:
223-7948
Number of Bedrooms:
Three 3
5' Wide Trench
LEGAL DESCRIPTION
Soil Rating:
1.2
Total Depth from original grade:
9
GPD/FP
Ft.
Block: Lot: Subdivision:
Depth to pipe bottom from original grade:
Gravel depth beneath pipe:
BLM Lot 198B
5 Ft.
4 Ft.
Township: Range:
Section:
Fill added above original grade:
Gravel Length:
T15N 1W
18
1 Ft.
39 Ft.
Well: New
Gravel width:
Number of lines:
Distance between lines:
5 Ft.
1
- Ft.
Classification (Private, A, B, C):
Total Depth:
Cased to:
Total absorption area:
Pipe Material:
Private
99
Ft.
99 Ft.
390 W
IASTM D3034, HDPE
Driller:
Date Drilled:
Static Water Level:
Installer:
Dale Installed:
Sullivan
8/22/2001
52 Ft.
Guaranteed Services
1 3/13/02
Yield:
Pump Set at:
Casing eight Above Ground:
TANK
G GPM
Ft.
>2 Ft.
SEPARATION DISTANCES
® Septic ❑ Holding ❑ S.T.E.P. ❑ Other:
To
Septic
Absorption
Lift
Holding
ublic/Private
Manufacturer:
apace y in aIons:
From
Tank
Field
Station
Tank
Sewer Line
Anchorage Tank
1,000
Well
>100'
>100'
N/A
N/A
>25'
Material:
Steel
Number of Compartments:
Two (2)
Surface Water
>100'
>100'
N/A
N/A
LIFT STATION — NONE ON LOT
Lot Line
>5'
>10'
N/A
N/A
ze:
Gal.
anu ac urer:
>5'
>10'
N/A
N/A
"Pump on" level at:
"Pump off" level at:
High water alarm at:
Foundation
in.
in.
in.
None
Noted
Pump Make & Model
Electrical Inspections performed by:
Curtain Drain
Remarks:
BENCH MARK
Location and U—es cripuon:
Garage Floor.
Assumed Elevation:
100.0 Ft.
Engineer's Stamp
�10
. ............... ��
M
Inspections performed by: TLK
Dates: 1St 3/13/02
' . ... ..
��`p 9t
nd 3/13/02
%`�ICHA< ................
° vE< t1D'R,ONr;
Department of ealth
and Human Services approval
°°o s °.. ===_` `F' .,
Reviewed and approved by: (
Date: /2 Uz--
•:
��a,����o���.•'`
(Rev. 10/99)
Municipality of Anchorage Page 2 of 3
DEVELOPMENT SERVICES DEPARTMENT
4700 South Bragaw Street Anchorage, AK 99519-6650 - 343-7904
On -Site Wastewater Disposal System or Well Inspection Report
Permit Number SWO10165 PID No. 051-232-32
A
B
C
S1
27.1
20.9
S2
30.7
26.6
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44.3
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68.3
51.0
M1
44.8
43-5
M2
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2
Alterna` M2
Site
N 00009'04"W 61.67'
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N 00°03'19"W 226.60'
PLAN" _ 1 L T
SCALE 1" = 40'
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MICHAEL. E. ANDERSON
cE-4381
®®`® 0®®1'OEESS\(3\ ®"
•
raUIUL
Municipality of Anchorage
DEVEOPMENT SERVICES DEPARTMENT
4700 South Bragaw Street Anchorage, AK. 99519-6655 - 343-7904
On -Site Wastewater Disposal System or Well Inspection Report
Permit Number: SW010165
100.00 FF
93.01
' = cU Ln
U f F- F U
PROFILE
R•
Scale: 1" = 10'
Page 3 of 3
PID No. 051-232-32
93
o`,�®OIL
®®mat' ®®•
JW
•�: �1
AV 49ih '~
r WCHAEI E. ANDERSON
NO.
®A®imam®®®
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eb �Drttttng IL
by
DOC CO. dba
SULLIVAN WATER WELLS
P.O. BOX 670272, CHUGIAK, ALASKA 99567 • TELEPHONE 688-2750
OWNER OF LAND: Fibs-
ADDRESS:
BORE HOLE DATA
DEPTH
From To
LEGAL DESCRIPTION:
DATE:
.PERMIT NUM_BERiJ1 6 Date of Issue
r.
TAX IDENTIFICATION NUMBER. t% - .3,A -
Is wetl located'al approved permit location? s ;j No
Nfeliod of Drillg: 'r rotary a cable tool
. �. } '
Depth of well: -->.?
Casing Type = Wall Thickness 1 —inches
' Diameter f inches, depth!'' 1 r feet
r Type - ��
>zasing Stickup Above Ground' � ' feet
Static Water Level: feet
Recover Rate: k�> gpm
Method of Testing: i zg-
Well Intake Opening Type: lr'Spen end O open hole
.. y
4Z C r<.4JEF L
r4 .j to
5 4 1-- 4�
4 a
C] -j
Screened-, Start feet Stopped feet
T -Perforations 'Star=feet Stop d -feet --
Grout Type: f C :.;z�=.JaT i= olme�?�»13
Depth: from feet, to feet
Well Disinfected Upon Completion? s L-1 No
Method of Disinfection: 11<1�
ATTENTION: It is the responsibility of the property owner to submit a copy of the well log to the proper authority. Municipality
of Anchorage: Department of Health &Human Services and/or, Department of Environmental Conservation. MatSu Borough:
Department of Environmental Conservation.
3' BLM RESERVATION
2001-107
BLM LOT 1988
LOCATED WITHIN THE SW 1/4, SECTION 18, T15N, R1W, S.M., ALASKA
43,575 S.F.
S 780
422 26_1 �
BUILDING DETAIL
SCALE: 1 "=20'
MINK CREEK DRIVE
0
M
N 89057' 19"E 308.46'
*00k N it it
OF
r .. .o.• ........... ..p
Jeffery l
i
�o %. LS-6091 to `JQ'
0
co
N
N
1 40'
FINAL STRUCTURE AS —BUILT
HZ�- U V
I L
I
I HEREBY CERTIFY THAT I HAVE SURVEYED THE
PROPERTY DEPICTED ABOVE AND THAT NO
GASTALDI LAND SURVEYING
ENCROACHMENTS EXIST EXCEPT AS INDICATED.
JEFF A. GASTALDI, R.L.S.
IT IS THE RESPONSIBILITY OF THE OWNER TO
4726 WEST 88TH AVENUE
DETERMINE THE EXISTENCE OF ANY EASEMENTS,
ANCHORAGE, ALASKA 99502
COVENANTS OR RESTRICTIONS WHICH DO NOT
PHONE 248-5454
APPEAR ON THE RECORDED SUBDIVISION PLAT.
UNDER NO CIRCUMSTANCES SHOULD ANY DATA
GRID
DATE
HEREON BE USED FOR CONSTRUCTION OR FOR
NW1054
6/17/2002
ESTABLISHING BOUNDARY OR FENCE LINES.
ANCHORAGE RECORDING DISTRICT, ALASKA
F.B.
JOB N0.
02-07
198B
NOTE: NO CORNERS SET THIS DATE.
Municipality of Anchorage
George P. Wuerch, Mayor
Building Safety Division
P.O. Box 196650 · 4700 S. Bragaw Street
Anchorage, Alaska 99519-6650 · (907) 343-8301
http://wxx~v.ci.anchorage,ak.us
May 21, 2002
Harry & Simone Thomson
PO Box 874
Eagle River AK 99577
Subject:
On-Site Water and/or Wastewater Permit.
Permit Number: SW010165
:Ei~gaiD~SCfiPtion: T15N R1W Section 18 Lot 198
Dear Harry & Simone Thomson:
An On-Site Water/Wastewater Permit, number SW010165, issued by this office for a single-family
system, will expire on June 6, 2002. This permit was valid for 365 calendar days.
If this was a well permit and the well has been drilled, a well log must be sent to this office for
documentation of the installation and to close the permit.
If this permit was for a wastewater disposal system, an original as-built inspection report must be sent to
this office for review, approval and documentation. This as-built inspection report must be signed by
the licensed Professional Engineer who inspected the installation of the system. As-built inspection
reports are required to be submitted within 30 days of the completion of the system.
If no system was installed under this permit, and you are still planning to install a well or wastewater
disposal system, a new permit must be obtained from this office. A new permit for a second year may
be issued for a fee of $100.00 if the renewal application is received on or before the expiration date of
the original permit.
When applying for a new permit, the fees are: $400.00 for a wastewater permit and $150.00 for a well
permit.
If you have any questions, please call this office at 343-7904.
Sincerely,
Dan Roth, Civil Engineer II
Acting Manager
On-Site Water and Wastewater Program
Eno: Copy of permit
MUNICIPALITY OF ANCHORAGE
Development Services Department
On-Site Water & Wastewater Program
4700 Soufh Bragaw Street
P.O. Box 196650, Anchorage, AK 99519-6650
(907) 343~7904
ON-SITE WASTEWATER DISPOSAL SYSTEM / WATER SUPPLY PERMIT
Initial
Date Issued: Jun 06, 2001
Expiration Date: Jun 06, 2002
Permit Number: SW010165
Legal Description: T15N RIW SEC 18 LT 198
Design Engineer: 0014 Anderson Engineering
Owner Name: HARRY & SIMONE THOMSON
Owner Address: NHN MiNK CREEK DRIVE
EAGLE RIVER , AK 99577-
Parcel ID: 051-232-32
Site Address:
Lot Size: 108900 SQ. FT.
Total Bedrooms: 3 Permit Bedrooms: 3
This permit is for the construction of:
~ Disposal Field I~ SepticTank~_,,'-~ Holding Tank !-~ Privy
Private Well E~ Water Storage
All construction must be in accordance with:
1. The attached approved design.
2. All requirements specified in Anchorage Municipal Code Chapters 15.55 and 15.65 and the State of Alaska
Wastewater Disposal Regulations ( 18AAC72 ) and Drinking Water Regulations ( 18AAC80 ).
3. The engineer must notify DSD at least 2 hours prior to each inspection. Provide notification by calling
(907) 343-7904 ( 24 hours ). ( Not required for a Water Supply Permit only ).
4. From October 15 to April 15, a subsurface soil absorption system under construction during freezing weather
must be either: A. Open and closed on the same day.
B. Covered, sealed, and heated to prevent freezing.
26-01 Pl r -D
Received By:
Date:
Municipality of Anchorage
Development Services Department
Building Safety Division
On-Site Water and Wastewater Program
4700 South Bragaw St.
P.O. Box 196650 Anchorage, AK 99519-6650
www.ci.anchorage.ak.us
(907) 343-7904
ON-SITE SEWER/VVELL PERMIT APPLICATION
FOR A SINGLE FAMILY DWELLING
Parce, 05'/--2-32--32
Permit Number SW O I O~j~
Property owner(s) SimoneThomson
Mailing address (1) P.O. Box 874 Ea.qle River, AK 99577
~ address (2) ~///M
Legal description (Lot, Block & Sub'd.) BLM Lot 198, Section 18, T15N, RlW
Legal description (Section, Township & Range)
Lot Size/OS! 900 ^oresG
THIS APPLICATION IS FOR:
Sewer Only
Sewer and Well
Sewer Upgrade
THIS PROPERTY CONTAINS:
Hot Tub
Swimming Pool
Therapy Pool
Day phone 688-1225
Zip Code ~ 7 7
Number of Bedrooms Three (3)
[] Well Only []
[] Water Storage []
[] Jacuzzi []
[] Water Softening Unit []
I certify that the above information is correct. I further certify that this application is being made for a
Single Family Dwelling and is in accordance with applicable Municipal Codes.
(Signature of property owner or authorized agent)
Permit Fees:t~ J~O
Date of Payment:
Receipt Number:
(Rev. 12/00)
Waiver Fees:
Date of Payment:
Receipt Number:
ANDERSON 'ENGINEERING
P.O. BOX 240773
ANCHORAGE, AK 99524
522-7773 522-6779 (FAX)
May 26, 2001
Municipality of Anchorage
Development Services Department
On-Site Water and Wastewater Program
4700 South Bragaw Street
Anchorage, AK 99519-6650
Su~e~:
BLM Lot 198, Section 18, T15N, R1W
Septic System Design and Permit Application
Impacts to Adjacent Properties
Dear Onsite Services Engineer:
The owner of BLM Lot 198, Section 18, T15N, RIW intends to construct a new three-
bedroom home on the lot. The parcel is currently being subdivided into two lots as
shown on ~he attached drawing. We are therefore applying for a permit to construct a
new well and septic system on the lot to serve the proposed home. The attached Site
Plan and backup documentation identify the location and configuration of the new
septic system and the parameters used in the design. Also identified on the plans are
the location of the proposed well along with the test holes and the alternate site.
Existing drainage patterns are shown and will not be altered by the development of the
lot. We have surveyed the area and the new system will not conflict with other wells or
septic systems in the area.
Two test holes were recently placed on the lot to determine subsurface conditions.
Soils were found to be poorly graded sands and gravel with varying amounts of silt.
Percolation tests in the material indicated rates approximating 1 minute per inch in both
the sand and the gravel. No groundwater was found during the excavation and none
was found during the monitoring period. We are therefore proposing to place an
absorption trench 32' long by 3' wide with a 6' effective depth to treat the septic effluent.
The distribution pipe will be placed at 3' below the surface for a total depth of 9'.
The ground surface on the lot slopes as shown on the attached Site Plan with grades
from northwest to southeast and flatten in the area of the test holes. The new
absorption trench will be constructed parallel to the contours of the surface as much as
possible in conformance with Municipal requirements. Grading will be accomplished
to assure surface drainage is away from the new trench. The existing drainage pattern
on the lot will not be affected during development.
If the system is constructed in accordance with our design the following statements
apply:
The system, if constructed as designed, will have no adverse impact on the wells
in the area or those to be constructed in the future.
BLM Lot 198, Section 18, T15N, R1W
May 25, 2001
Page Two
The system, if constructed as designed, will have no adverse impact on existing
septic systems in the area or those to be constructed in the future.
The system, if constructed as designed, will have no adverse impact on reserve
space, either surface or subsurface, on any lots located in the area.
The system, if constructed as designed, will have no adverse impact on drainage
patterns in the area. The current drainage pattern will be maintained.
Michael E. Anderson, P.E.
Attachments
A.
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Stl S91
330 Pc)e R 0 w
Res err
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1 L913:D1 '.
32 "81
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Vp!Re
v WEST 328.88 76 270
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63.
THIS PROJECT
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176.85
'
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Bk 196 Pg tia
M Bk 270 Pa 3
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- BLM Patent .Resenrve
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273.24
/ 328.88 N8V59'00
w -, 328.81
S8945900'E 1098,24 BLM
AREA MAP
q,
SCALE 1" =100'
DATE: September 18, 2001
TO: Dan Roth
FROM: Mike Anderson, P.E.
SUBJECT: BLM Lot No. 198, Section 18, T15N, R1 W
Septic System Construction Permit No. SW010165
We have modified the design of the absorption trench for the subject lot to include a 5'
wide trench with 4' of drainfield rock. Soils on the lot are very clean and the trench
walls will not stand vertically during construction. The wider and shallower trench will
be much easier to construct and require less drainfield rock. Please modify the septic
system construction permit to allow the new configuration for the drainfield.
Please let me know if you have any questions or additional information is required.
N 89'56'54"E 328.46'
LOW CREEK DRIVE
-o
r� r�
CO Proposed
3 Well
o _
'0 38' Lon X 5' Wide
X d' Ep fective Rpth
Z Three Ab`sEor ion Tren
Bedroo ��`�;�
House
Q' , 004 TH4
M
Gallon -
TH1 Septic Tank
o a, AloA Alternate
")I!.- os Site
id o TH2 TH3
o N Septic Reserve Area Lod -
o Y10,000 SQuare Feet
Proposed
Well
N '55"E 327.96' t
lr `
SITE PLAN
SCALE 1" = 50' f�.r
BLM LOT 198, SECTION 18, T15N, R1 W
DESIGN FACTORS:
SYSTEM REQUIREMENTS:
Three Bedroom Home 5' Wide Trench System
Perc. Rate: 1 Min./inch 1,000 Gallon STEP Tank
Application Rate: 1.2 GPD/SF 4' Drainfield Rock
3 Bedrooms X 150 GPD 11.2 GPD/SF = 375 SF of Absorption Area
375 SF/5 LF (Width)*.5 (Red. Factor) = 37.5 LF Trench Length
Therefore: Construct a 38' Long X 5' . Wide X 4' Effective Depth Absorption Trench.
__-____-______Flovrl'iae_Elexation_in_T_re_nchTo_ktQ '_Below Original_ Ground Surface. Total Depth
Below Existing Ground. All Components of the Septic System to be Outside the 100'
Protective. Well Radius. Mound Over Trench as Necessary to Provide 3' of Cover.
21611
4'
2" Insulation & 2' Coy
or
Geotektile Fabric & 3'
4" PVC ASTM D3034
Drainfield Rock
5'
TYPICAL WIDE TRENCH SECTION
(NO SCALE)
NOTE: Grade Area Over Trench to Drain Away.
Minimum 6' Separation From Bedrock.
Minimum 10' Separation From Lot Line. t ,
Minimum 4' Separation From Groundwater. f
Minimum 100' Separation From Wells in the Area.
r,—
d hFs i) . }C . C
/F JiTj f
le
ipth
SITE PLAN
SCALE 1" = 50'
BLM LOT 198, SECTION18, T15N, R1 W
DESIGN FACTORS:
SYSTEM REQUIREMENTS:
Three Bedroom Home Deep Trench System
Perc. Rate: 1 Min./Inch 1,000 Gallon Septic Tank
Application Rate: 1.2 GPD/SF 6' Drain Field Rock
3 Bedrooms X 150 GPD 11.2 GPDISF = 375 SF of Absorption Area
375 SF/12SF/LF = 31.25 LF Trench Length
Therefore: Construct an Absorption Trench 32' in Length by 3' Wide With 6' of Drainfield
Rock Beneath the Distribution Lateral. Distribution Lateral to Be Placed 3' Below Existing
Ground. Total Depth of Trench to Be 9' from Existing Surface. Mound Over Trench if
Necessary to Provide Minimum Cover of 3'.
6'
71-
- Natural
Backfill... :
Fabric
Perforated:.
PVc-(Slots-Down)
-.-,.,._Drainfield
Rock:
c:
t
TYPICAL DEEP TRENCH SECTION
(NO SCALE) , „
NOTE: Grade Area Over Trench to Drain Away.
Minimum 6' Separation From Bedrock.
Minimum 10' Separation From Lot Line.
Minimum 4' Separation From Groundwater.
Minimum 100' Separation From Wells in Area.
Maintain 50' Separation From Slope >25%.
r
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.1 Z1 r"
Municipality of Anchorage
Department of Health & Human Services
825 L Street, Anchorage, AK 99502-0650 J,;�� - 43S
SOILS LOG - PERCOLATION TEST
Performed For: Gastaldi Land Surveying Date Performed:
Legal Description: BLM Lot 198
SLOPE SITE PLAN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
OG/OL
GP/SP
Bottom of
Hole
Was Groundwater
Encountered?
If Yes, What Depth?
Depth to Water
After Monitoring
Date:
0
da
M
None
5/17/01
11
Mink Ave ue
145'
O
75'
LOT 198
2%
Perc. Rate: >1 Min./Inch Perc. Hole Diameter: 6"
Test Run Between 4 Ft. and 5 Ft.
Comments: Percolation Cavity Presoaked Prior to Testing.
Performed By: Alan Harala. I, Michael E. Anderson Certify That This Test Was Performed
In Accordance With All State and Municipal Guidelines In Effect On This Date: 5126/01
Municipality of Anchorage
Department of Health & Human Services
825 L Street, Anchorage, AK 99502-0650
SOILS LOG - PERCOLATION TEST
r.
Performed For: Gastaldi Land Surveying Date Performed. 51`1/D11"x
Legal Description: BLM Lot 1 98
SLOPE SITE PLAN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
OG/OL
GP/SP
Bottom of
Hole
Was Groundwater
Encountered?
If Yes, What Depth?
Depth to Water
After Monitoring
Date:
C
da
m
None
5/17/01
S
L
P
P
Mink Avenue
94'
O
45'
LOT 198
, 2 %
_2%
Perc. Rate: >1 Min./Inch Perc. Hole Diameter: 6"
Test Run Between 4 Ft. and 5 Ft.
Comments: Percolation Cavity Presoaked Prior to Testing.
Performed By: Alan Harala. I, Michael E. Anderson Certify That This Test Was Performed
In Accordance With All State and Municipal Guidelines In Effect On This Date: 5/26/01
ON-SITE WASTEWATER DISPOSAL SYSTEM
CONSTRUCTION AND MATERIAL SPECIFICATIONS
SUBJECT: BLM LOT 198, SECTION 18, T15N, RIW
GENERAL:
The scope of this project includes the procurement and placement of a
new 1,000 gallon septic tank at the location shown on the site plan.
Work also includes the construction of a new 32' long X 3' wide X 6'
effective depth absorption trench at the location shown. The
distribution line in the trench will be placed at 3' below the existing
ground surface. Total depth of the trench will be 9' below the existing
ground surface. A minimum of 3' of cover are required above the
absorption trench to protect against frost penetration. All components
of the septic system must be placed a minimum of 100' from all wells
in the area.
Construction shall be in accordance with the approved site plan,
design drawings, Municipal Permit with any special provisions or
conditions, and all applicable State and Municipal Wastewater
Disposal Regulations.
The Contractor shall be responsible for obtaining all underground utility
locates and for the layout of the septic system and verification of the
location of all lot lines.
Unless specifically agreed otherwise, the contractor shall be
responsible for final grading areas subsequently depressed from soil
settling. Property owner shall be responsible for revegetation of
affected areas unless specifically agreed otherwise.
Contractors installing wastewater disposal systems must be certified
by the Municipal Department of Health and Human Services for
system installations. Owners installing their own systems must receive
prior approval from D.H.H.S. before beginning system installation.
SEPTIC TANK INSTALLATION
1. A new 1,000 gallon septic tank must be be procured from an approved
source and installed at the location shown.
A septic tank is to be constructed by a certified septic tank
manufacturer. Construction shall include two 4" cleanouts for pumping
access.
3. The septic tank shall be sufficiently bedded to prevent settling or
shifting of the tank.
4. All standpipes on the septic tank shall extend a minimum of 12 inches
above final grade.
5. Tanks installed without 4' of cover shall have a minimum of 2" of direct
burial insulation.
,BLM Lot 198, Section 18
May 26, 2001
Page 2 of 3
6. A foundation cleanout shall be installed one to four feet from the
building foundation. Two cleanouts are required between the tank and
the drainfield.
7. Final grading over the tank shall be such that a positive slope exists
away from the septic tank.
DRAINFIELD CONSTRUCTION:
2~
The drainfield shall be constructed to the dimensions shown on the
design. The bottom of the trench shall be within 2" of level.
Distribution piping must be placed level with perforations down atop a
level bed of drainfield rock. Rock should then be placed over the pipe
to provide a minimum of 2" of cover.
A silt barrier or geotextile fabric must be placed between the drainfield
rock and the natural soil backfill.
4. Monitor tubes must be 4" in diameter and installed at the locations
shown on the design. The portion below ground must be perforated.
Contractor shall verify the septic tank and drainfield are a minimum
100' away from any private water wells in the area, 150' from a Class
"C" Well or 200' from any community well.
Direct bury insulation must be placed over the distribution system if
less than 3' of backfill depth is available. Finish grade over the trench
must be mounded to prevent settlement or depressions.
7. Grade area surrounding the absorption trenches to drain away.
o
A minimum 2' of accepting soil is required below the drainfield rock for
a 5' wide trench, Contractor shall verify this condition prior to
placement of the rock. All pockets of unacceptable materials must be
removed and replaced.
MATERIAL SPECIFICATIONS:
1. Septic tanks must be constructed by a municipally approved septic
tank manufacturer.
The following pipe materials are approved for use in septic system
installations in the Municipality of Anchorage:
Cast Iron (perforated and solid), ASTM D3034 or P.V.C. (perforated
and solid), ASTM F810 or H.D.P.E. (perforated, but not solid) and
ASTM D2662 or A.B.S. (perforated and solid).
Insulation shall be at least 2" thick extruded direct burial polystyrene
(Dow Chemical Co. Styrofoam HI or equal).
Septic tank inlets and outlets shall be fitted with watertight couplings
(Caulder, Fernco, or equal).
· .BLM Lot 198, Section 18
May 26, 2001
Page 3 of 3
5. A permeable geotextile fabric (Typar, Mirafi or equal) must be installed
between the final 'drain rock layer and the native soil layer.
6. All drain rock shall be .5" to 2.5" in diameter with less than 3% passing
the #200 sieve.
INSPECTIONS:
Municipal Ordinance requires a minimum of two inspections. These
inspections must be conducted under the supervision of a professional
engineer registered in the State of Alaska. The first inspection must be
conducted after the excavation of trenches, beds or pits and before the
installation of any gravel. A septic tank may be set in place, but may not
be backfilled.
The second inspection must be conducted after the placement of the
geotextile fabric, gravel, distribution piping, standpipes, cleanouts and
insulation. No backfill should be in place at the time of inspection.
Contractor shall provide a copy of all field survey layout and construction
notes for use in preparing the certified as-built of the completed system.
