HomeMy WebLinkAboutGREENLAND BLK 7 LT 1Greenland
Block 7
Lot 1
#015-171-12
3UBW
Municipality of Anchorage
Community Development Department Page 1 of 3
On -Site Water and Wastewater Program
4700 Elmore St. • P.O. Box 196650 Anchorage, AK 99519-6650 • http://www.muni.org/onsite • (907) 343-7904
ON-SITE WASTEWATER INSPECTION REPORT
Permit Number: SW100016 PID Number: 015-171-12 ❑ New ❑✓ Upgrade
Name:
William O. Holmes
ABSORPTION FIELD
❑ Deep Trench ❑✓ Shallow Trench ❑ Bed ❑ Mound
Address
4720 E. 112th Avenue Anchorage, AK 99516
❑ Other
Phone
Number of Bedrooms
Soil Rating
Total depth from original grade
4
.6GPD/SF
13 Ft.
LEGAL DESCRIPTION
Depth to pipe invert from original grade
5 Ft.
Gravel depth beneath pipe
8 Ft.
Subdivision Block Lot
Greenland 7 1
Fill added above original grade
1-2 Ft.
Gravel length
70 Ft.
Township Range Section
Gravel width
3Ft.
Beds: Number of Lines
Distance between lines
I Ft.
SEPARATION DISTANCES
To
Septic
I Absorption
Lift Station
Holding
Sewer
Total absorption area
Number of trenches
Dist. between trenches
From
Tank
Field
Tank
Line
1,1201
Ftp
Ft.
well
>100,
>100'
N/A
N/A
>25'
TANK ❑ Septic ❑ S.T.E.P. ❑ Holding ❑ Other
Manufacturer
Anchorage Tank
Capacity
1,250Gal.
Surface water
>100'
>100'
N/A
N/A
Material
Number of compartments
Lot Line
>5'
>10'
N/A
N/A
Steel
Two
NA
Foundation
>5'
>10'
N/A
N/A
LIFT STATION
Manufacturer
Capacity
Curtain Drain
None
Noted
Gal.
Remarks Existing Septic Tank Decommissioned in
Pump on level at
in.
Pum off level at
p
n.
High water alarm at
g
in.
Accordance with Municipal Code.
Pump make and model
Electrical Inspections performed by
Installer
PIPEMATERIAL Housetotank D3034 Tankto D3034
drainfield
PCN, Inc.
Drainfield F81 CO/MT D3034
Inspector A. Harala
BENCHMARK (Assumed elevation) 100.0ft
Inspection �_� 2/14!10
dates: 2 2/15/10
Location and description
B,d 4,n
Utility Room Window Sill.
COMMUNITY DEVELOPMENT DEPARTMENT APPROVALs•��QOF�q�III
...... C
Conditional Approval: Date
s `P�� 4 r0®
ow
AN
49TH v
�..... ........ .
O.................................
.MICHA€L E. ANDERSON
♦ .� CE -4381
L%
Approve _ Date fot owe 1
pROFESSMtN�'
�1 4"
'�
DEVEOPMENT SERVICES DEPARTMENT
4700 Bragaw Street Anchorage, AK. 99519-6655 - 343-7904
Permit No.: SW100016 On -Site Wastewater Disposal System or Well Inspection Report
LOT1, BLOCK 7, GREENLAND SUBDIVISION
45,865 S.F.
112th AVENUE
w
0
0
i7
0
0
Grinder Pump Lift Station
Located in Lower Level of z
House.
Drawing Not Completed from
Surveyor As Built. Locations
are not Exact.
LEGEND
CO — Cleanout
SV — Septic Vent
FCO — Foundation Cleanout
TH — Test Hole
MT — Monitor Tube
49th W
E. ANDERSON
Existing Absorption Area
Abandon in Place.
�J Rat inin�
Nwll .
TH2
TKt
Four Bedroom
Home
Driveway
® Existing Septic Tank
Existing Abandoned In Accordance
Well With Municipal Code.
SITE PLAN
SCALE 1" = 30'
PID No. 015-171-12
A B
St
27.8'
35.6'
S2
31.6'
43.6'
C4
73.5'
74.0'
CS
24.8'
60.2'
M1 1 68.8' 71.6'
Municipality of Anchorage Page 3 of 3
DEVEOPMENT SERVICES DEPARTMENT
4700 Elmore Road Anchorage, AK. 99519-6655 - 343-7904
On -Site Wastewater Disposal System or Well Inspection Report
Permit Number: SW100016
Existing II / FinishW
I GmntlkGroundU5.14.9
PID No. 015-171-12
a ;n 102.4
PROFILE AS -BUILT
No Scale
MUNICIPALITY OF ANCHORAGE
Development Services Department
On -Site Water & Wastewater Program
4700 South Bragaw Street
P.O. Box 196650, Anchorage, AK 99519-6650
(907) 343-7904
ON-SITE WASTEWATER DISPOSAL SYSTEM PERMIT
Upgrade
3-2L-/-1ve-/.
Date Issued: Mar 11, 2010
Expiration Date: Mar 11, 2011
Permit Number: SW100016 Parcel ID: 015-171-12
Legal Description: GREENLAND BLK 7 LT 1
Design Engineer: 0014 ANDERSON ENGINEERING Site Address: 004740 112TH AVE E
Owner Name: WILLIAM O. HOLMES Lot Size: 18105 SQ. FT.
Owner Address: 4720 E 112TH AVENUE Total Bedrooms: 4 Permit Bedrooms: 4
ANCHORAGE, AK 99516-1610
This permit is for the construction of:
❑✓ Disposal Field ❑✓ Septic Tank ❑ Holding Tank ❑ Privy ❑ Private Well ❑ 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.
Received E
Issued E
Cod r)uk Ayloo .* Id.
Date:
Date: [ Ild
Municipality of Anchorage
• --1 Development Services Department
Building Safety Division
On -Site Water and Wastewater Program
4700 Bragaw Street
P.O. Box 196650
Anchorage, Alaska 99519-6650
www.muni.org/onsite
(907) 343-7904
ON-SITE SEWER/WELL PERMIT APPLICATION
FOR A SINGLE FAMILY DWELLING
Parcell.D. 015.171-12
Property owner(s) William O. Holmes Day phone 696-3803
Mailing address 4720 E. 112th Avenue Anchorage, AK Zip Code 99516
Site address 4720 E. 112th Avenue Anchorage, AK Zip Code 99516
Legal description (Sub'd., Block & Lot) Lot 1, Block 7, Greenland Subdivision
Legal description (Township, Range & Section)
Lot Size 18.105 Sq. Ft.
THIS APPLICATION IS FOR (® all that apply):
Absorption Field
Q
Septic Tank
Q
Holding Tank
❑
Privy
❑
Private Well
❑
Water Storage
■1
Number of Bedrooms Four (4)
THIS APPLICATION IS AN:
Initial
❑
Upgrade
El
Renewal
❑
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/Rush Fees: _�73(l
Date of Payment: Z
Receipt Number. [)59 59
(Rev. 11/05)
Waiver Fees:
Date of Payment:
Receipt Number.
ANDERSON ENGINEERING
P.O. BOX 240773
ANCHORAGE, AK 99524
522-7773 677-7766 FAX
March 5, 2010
Municipality of Anchorage
Development Services Department
On -Site Water and Wastewater Program
4700 Elmore Road
Anchorage, AK 99519-6650
Subject: Lot 1, Block 7, Greenland Subdivision
Septic System Design and Permit Application
Impacts to Adjacent Properties
Dear Onsite Services Engineer:
The existing absorption system on the subject lot has failed and must be upgraded.
We are therefore requesting a permit be issued for the upgrade of the septic system to
accommodate the three-bedroom home on the lot. The attached Site Plan and backup
documentation identify the location and configuration of the existing and proposed
septic system. The existing septic tank will be pumped, crushed, backfilled and
abandoned on site. The existing absorption system will also be abandoned in place.
The location of the new septic tank and absorption system along with the old tank and
absorption system are shown on the plans. Also identified on the plans are the
locations of the adjacent wells and septic systems. No conflicts exist between the
proposed septic system and the wells on this or adjacent lots. Drainage arrows are
shown indicating the current drainage patterns. The drainage patterns will be
maintained after construction.
The test holes placed on the lot indicated silty sand (SM) with some gravel. The
percolation rate was determined to be 29 minutes per inch in the area of the new
absorption system. No groundwater was found nor was any noted during the ensuing
monitoring period. We have designed the new trench with an application rate of .6
gallons per date per square foot. We are proposing to place 2-35' long trenches with a
8' effective depth. The total depth of the system will be 12.5'.
The ground surface on the lot slopes gently from the northeast to the southwest. A 3'
high retaining wall is located on the perimeter of the area for the new absorption
system. The wall contains landscaping between the wall and the fence surrounding the
property. The retaining wall will have no impact on the absorption system. The new
Lot 1, Block 7, Greenland
March 5, 2010
Page Two
absorption system will be constructed parallel with the contours of the ground surface.
A minimum of 100' will be maintained between all components of the septic system and
the proposed well and from any surface water in the area.
If the system is constructed in accordance with 'our design the following statements
apply:
1. 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.
2. 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.
3. 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.
4. The system, if constructed as designed, will have no adverse impact on drainage
patterns in the area. The current drainage pattern will be maintained.
Sincerely,
Michael E. Anderson, P.E.
Attachments
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N1/2,
N1/2, LOT\22,
S22,. T12N, R3V)'�
112th AVENUE
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Undeveloped
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\\ 6 5
\ EAST 113th AVENUE
1
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EAST 113th AVENUE 1\
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6 5
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• :• •
................ It...,0
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AREA
MAP
0? NICNAEL E ANDERSON /�
0,f'•.
SCALE 1'
= 100'
No. cE-4 1 {tii
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10
11
12
1
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10
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LOT1 , BLOCK 7, GREENLAND SUBDIVISION
45,865 S.F.
Exist. Septic Tank
Pump, Crush and
Backfill In Place.
W
a
O
O
M
0
b
0
11
LEGEND:
CO —
Cleanout
SV —
Septic Vent
FCO
— Foundation Cleanout
TH —
Test Hole
MT —
Monitor Tube
49thT
MICHAEL E. ANDERSON
!n t. No. CE -4381
112th AVENUE
Ex7;TH2
C 70' Long x 3' Wide
Abx 8' Effective Depth
Absorption Trench
MT
�✓
Co(2) w(�/
Sv `✓ L L-
1,250 Gallon \
Septic Tank
\Go
FCO+1i/ \ O
J
Three Bedroom ~
Home Q
I
Driveway I I
NOTE: Remove Retaining
wall as Remove
e R to Install
New Absorption Trench.
e
Existing
well
SITE PLAN
SCALE 1' = 30'
LOT 1, BLOCK 7, GREENLAND SUBDIVISION
DESIGN FACTORS: SYSTEM REQUIREMENTS:
Four Bedroom System Deep Trench System
Perc. Rate: 29 Min./Inch 1,250 Gallon Septic Tank
Application Rate: .6 GPD/SF 8' Drainfield Rock
4 Bedrooms X 150 GPD/.6 GPD/SF (Application Rate) = 1,000 SF Absorption Area
1,000 SF/16 SF/LF = 62.5 LF Trench Length
THEREFORE: Construct 2-35' Long x 3' Wide x 8' Effective Depth Absorption Trenches at the Location
Shown. Flow Line Elevation in Trenches to be 4.5' Below Original Ground Surface. Total Depth to be
12.5' Below Existing Ground. Provide 4' Cover Over Septic Tank and 3' Cover Over Absorption
Trenches. Maintain 100' Separation from Wells in the Area.
Natural
Backfill
4'0"
Geotextile
Fabric
6^ O 4" Perforated
PVC (Holes Down)
[] "0
3'
Drainfield Rock
TYPICAL DEEP TRENCH SECTIOt
(NO SCALE)
NOTE: Grade Area Over Trench to Drain Away.
Minimum 6' Separation From Bedrock.
Minimum 4' Separation From Groundwater.
Minimum 100' Separation From Wells in the Area.
Minimum 100' Separation From Surface Water or Streams.
Performed For.
LegalDesartption:
01,
1 (1
(Feet)l' `'
1G-
11-
12-
13-
14- b
,5-
16-
17-
18-
1s- V
Municipality of Anchorage
Development Services Department
Buckling Safety Division
On -Ste Water and Wastewater Program
4700 Elmore Road
P.O. Box 1960.50 Anchorage, AK 99507
www. d. a n chore Oe. s k. u s
(907) 343-7904
Soils Log - Percolation Test
%4
V;.- —,.,.� ,.,9-`
*.
..1 Date Performed:
1 Township, Range. Section:
WAS GROUND WATER
Date
ENCOUNTERED?
5
IF YES, ATWHAT DEPTH?
I•
Depth to Water After0
�- P
Monitoring?
E
Dale:
1'A 10
v.MK2iAEL E MIDDRSON .� s
CE -4381 •:�a��
�Ppf�0. 10••�� r
,
p� 4
Reading
Date
Cross Time
Net Tim
Depth to Water
Net Drop
ti 3
I v
�' �
�
(o•lO� tl
�
.lrp r'
/
1?iMo
O w%
1•isvtt
IrlZt'
6-C it
rcnwuniwn rv.�e •VJ Imnup9MNI �a P.P.ERC HOLE DIAMETER _j ..
TEST NBETWEEN j'' FFTTAND �F/. 7 FT
Ae, �JOIrW�Ii
PERFORMED BY: ! 1 i 1 I CERTIFY THAT THIS TEST WAS
PERFORMED IN ACCORDANCE WITH ALLSTATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. LATE
e
Municipality of Anchorage y �Ften I EER--SEQI..,+f
Development Services Department •> G�: yh ' ;:'#
Bullaing Safety Division .�.; 49iy
C a.r 1
On -Site Water and Wastewater Program
4700 Elmore Road .�. .... .' r.t it
1
P.O. Box 190850 Anchorage, AK 99507 r """"' ' «+•
W+ xf anehoraae ak us c; llCHAPI. E ANDS -VQ
(907) 3417904 _4 �f , CE -4381
4�f���F•� •�....aaa ti , r
Soils Log - Percolation Test
Performed Far: M, Date Performed:
Legal Decd tion: [Zrl� l%-51,{l�b .-- — 1�—TamshIp. Range. Section:
Sope
rArL/ '�n11 __ I I 11 I I
1
-
-
21-
4
6-
17-
18-
19-
e2 H
1
e2H
WAS GROUND WATER
_
ENCOUNTERED?
}L•�L�
IF YES, AT WHAT DEPTH?
Net trop
Depth to Water Mw
't- 3 I I a
Monawrrg?
Date :Q �� 1
ofo I
Reading
Date
Cross Time
Net Time
Depth to Water
Net trop
't- 3 I I a
I3:14
o°
islii
30
.-ts
13'4
5.741 it
1015,
30 Mlw4
la, -7.5
lgIl-1
/
1441
30 H
L.SB
rc�nun RAli •aiv (M..1wn0) •I PERC HOLE DIAMETER _-7-
ST RUNBETWEEN .'I FT AND FT
�tt G�.oLaC1�s�
PERFORMED BY: `,�1 '¢,y— I CERTIFY THAT THIS TEST WAS
PERFORMEOIN AC�OOROANCE WITH ALLSTATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE DATE
l
ON-SITE WASTEWATER DISPOSAL SYSTEM
CONSTRUCTION AND MATERIAL SPECIFICATIONS
SUBJECT: LOT 1, BLOCK 7, GREENLAND SUBDIVISION
GENERAL:
The scope of this project includes the pumping, crushing and backfilling of
the existing 1,000 gallon septic tank currently on site. Work also includes the
procurement and placement of a new 1,250 gallon septic tank and
construction of 2 new 35' long X 3' wide X 8' effective depth absorption
trenches at the location also shown on the Site Plan. The distribution line in
the trench will be placed at 4.5' below the existing ground surface. Total
depth of the trench will be 12.5' below the existing ground surface. The new
absorption trenches must be placed a minimum of 100' from all private wells
and any surface water in the area and 10' from the water service line on the
lot. A minimum of 3' of cover is required over the absorption trench. A flow
splitter valve must be placed to insure equal distribution of effluent to each
trench.
2. 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.
3. 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. The Contractor must also verify the location of wells in the
area and assure that the separation distances are met.
4. 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.
5. Contractors installing wastewater disposal systems must be certified by the
Municipal Development Services Department Building Safety Division On Site
Water and Wastewater Program for system installations. Owners installing
their own systems must receive prior approval from the On Site Water and
Wastewater Program before beginning system installation.
SEPTIC TANK INSTALLATION
A new 1,250 -gallon septic tank must be procured from an approved source
and installed at the location shown.
Lot 1, Block 7, Greenland
March 5, 2010
Page 2 of 3
2. 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.
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:
1. The drainfield shall be constructed to the dimensions shown on the design.
The bottom of the trench shall be within 2" of level.
2. 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 the distribution line must be perforated.
5. Contractor shall verify the septic tank and drainfield are a minimum 1 00'away
from any private water wells in the area, 150' from a Class "C" Well or 200'
from any community well.
6. 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 trench to drain away.
8. 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.
Lot 1, Block 7, Greenland
March 5, 2010
Page 3 of 3
MATERIAL SPECIFICATIONS:
1. Septic tanks must be constructed by a municipally approved septic tank
manufacturer.
2. 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).
3. Insulation shall be at least 2" thick extruded direct burial polystyrene (Dow
Chemical Co. Styrofoam HI or equal).
4. Septic tank inlets and outlets shall be fitted with watertight couplings
(Caulder, Fernco, or equal).
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.
0
GREATER ANCHORAGE AREA BOROUGH
Department of Environmental Quality �.
9500 Tudor Road, Anchorage, Alaska 99507 279-8686
Date Received //J�-',f►''
Time of Inspection
Date of Tnspection /P�.:;�—/��/"Z_
REQUEST FOR APPROVAL OF
INDIVIDUAL SEWER & WATER FACILITIES
FOR
1. Approval Requested By: el7a/✓
Address; 3 0 P 641. Phone: �2
s, -Z 19, /�� / '7a �p'-.
2. Property Owner: Phone e
3. Legal Description:e ed,5�'-
4. Location:
5. Type of Facility to be Inspected:_�;5//t/�??/��''�_
Number of Bedrooms: -3
6,• Well Data:
A. Type.—,B.
C. Constructipn "ajar/�✓<- D.
��/IGr. i Bytom. �• 44pv4 L
7. Sewage Disposal System:
Depth 0,9
Bacterial Analysis
A. Installed % 1?.�y. B. installerCiwltly o%
C. Septic Tank: 1. Size ��2. Manufacturer _5�2�'Z
D, Seepage Pit: 1. Size 2, Material
E. Disposal Field: Total Length of Lines—Z7 4
8. Distances:
"{ pr
or
A. Well To: Septic Tank `' Absorption Area a Sewer Lines
Nearest Lot LineOther. Contaminations.
B. Foundation to Septic Tank � �j�.��, Absorption Area
C. Absorption Area to Nearest Lot Line ��
Request for Approval of individual ,Sewer & Water Faoilities
Page Two
9. Comments:
Aporoved_12EU eL� Disapproved
Date`/&,��1 7
Approval Valid for One Year From Date Signed
Greater Anchorage Area Borough, Department of Environmental Quality
DIAGRAM OF SYSTEM
d
�1 v�T4
1 certsry that the information contained in this request for approval to be a true
and accur,11:e renrosentation of the subiect sewer and water facilities located at:
-' !,!
Sign,eK u"- � _,Date �C� ���
'C/N rl
j�j �pvc�
rli/ Tung
d
�1 v�T4
1 certsry that the information contained in this request for approval to be a true
and accur,11:e renrosentation of the subiect sewer and water facilities located at:
-' !,!
Sign,eK u"- � _,Date �C� ���
