HomeMy WebLinkAboutHORIZON ESTATES LT 8Horizon
Estates
Lot 8
#051-324-28
On-Site Wastewater Disposal System Permit
OSP141404
05132428000
Septic
MUNICIPALITY OF ANCHORAGE
Development Services Department
On-Site Water & Wastewater Program
4700 Elmore Road, PO Box 196650
Anchorage, AK 99519-6650
Telephone: (907) 343-7904
Permit Number:
Tax Code Number:
Work Type:
Permit Effective Dates: October 01, 2014 to
Design Engineer: ANDERSON ENGINEERING
Subdivision: HORIZON ESTATES
Initial
October 01,2015
site Legal Address: HORIZON ESTATES LT 8 G:0553
Owner/Address: TROY DAVIS HOMES lNG
165 E PARKS HIGHWAY STE 200 WASILLA AK 996540000
Department
Site Mailing Address: 18349 MULDROW ST, Eagle River
Lot Size in Sq Ft: 40150
Total Bedrooms: 4
This permit is for the construction of:
Y Disposal Field Y Septic Tank N Holding Tank N Privy N Private Well N 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 wastewater code requires inspections during the installation. The engineer must notify the Development Services
Department at least 2 hours prior to each inspection. Provide notification by calling (907) 343-7904 (24 hours).
4. From October 15 to April 15, a subsurface soil absorption system under construction during freezing weather must either:
A. Open and Close on the same day.
B. Covered,__ .sealed'- _ and~ ..he,ated to prevent_, freezing.
-~pecial ProvisiOns:
The entire subsurface disposal field and/or alternate is not within a 30 foot radius of a percolation
test. The Engineer needs to do an additional percolation test prior to the construction of the septic
field. Please submit stamped and signed results with the As-built Inspection Report. If the results
require a design change, construction of the system will stop pending On-Site review and
approval. AMC 15.65.060.B.3
Received By:
Issued By:
MUNICIPALITY OF ANCHORAGE
Community Development Department
Development Services Division
On-Site Water & Wastewater Program
Phone: 907-343-7904
Fax: 907-343-7997
ON-SITE SEWER/VVELL PERMIT APPLICATION
Parcel I.D. 051-324-28
Property owner(s) Troy Davis Homes Day phone 310-2501
Mailing address 165 E. Parks Highway #200 Wasilla, AK 99654
Site address 18349 Muldrow Street Eagle River, AK 99577
Legal description (Sub'd., Block & Lot) Horizon Estates, Lot 8
Legal description (Township, Range & Section)
Lot Size 40,150 .Sq. Ft. Number of Bedrooms Four
APPLICATION IS FOR:
([~ all that apply)
Absorption Field []
Septic Tank []
Holding Tank []
Privy []
Private Well []
Water Storage []
APPLICATION IS AN:
TYPE OF DWELLING:
Initial [] Single Family (SF)
(w/wo ADU)
Upgrade []
Duplex (D)
Renewal []
Multiple Dwellings
THIS APPLICATION INCLUDES A VARIANCE / WAIVER REQUEST FOR:
I certify that the above information is correct. I fudher certify that this is in accordance with
applicable Municipal Codes.
(Signature of property owner or authorized agent)
Permit/Rush Fees:
Date of Payment:
Receipt Number:
Permit No. ~ el~
Waiver Fees:
Date of Payment:
Receipt Number:
Waiver No.
September 19, 2014
Municipality of Anchorage
Development Services Department
On-Site Water and Wastewater Program
4700 South Bragaw Street
Anchorage, AK 99519-6650
Subject:
Lot 8, Horizon Estates Subdivision
Septic System Design and Permit Application
Impacts to Adjacent Properties
Dear Onsite Services Engineer:
The owner of Horizon Estates, Lot 8 intends to construct a new four-bedroom home on
the lot. We are requesting a permit be issued for the construction of a new septic
system to accommodate the home. A well was placed on the lot during the subdivision
phase of the project. The attached Site Plan and backup documentation identify the
location and configuration of the proposed septic system and existing well along with
the alternate site. Also identified on the plans are the existing wells in the area and
septic systems on surrounding lots. No conflicts exist between the proposed septic
system and well or septic systems and wells on adjacent lots. Topographical contours
are are shown on the site plan indicating the grade and direction of flow on the lot. The
drainage pattern will not be changed as a result of this project.
The test holes placed on the lot indicated silty gravel with sand (GM). The percolation
rate of the soil was determined to be 17 to 20 minutes per inch. No groundwater was
found during the placement of the test holes and none was noted during the monitoring
pedod. An application rate of .6 gallons per day per square foot was used in the design
of the absorption system. We are proposing to place a new 1,250-gallon septic tank
and a 63' long by 3' wide by 8' effective depth absorption trench to treat and dispose of
the effluent generated in the house. The elevation of the distribution line in the
absorption trench will be 3' below the surface and the total depth will be 11'. A
minimum of 3' of fill or 2" of insulation and 2' of fill will be placed over the absorption
trench and 4' over the septic tank.
The ground surface on the lot in the area of the septic system slopes to the northwest
at a shallow grade with some cross sloping from the east. The new trenches will be
constructed parallel with the contours of the slope as much as possible in conformance
with Municipal requirements. The new septic system will be constructed a minimum of
100' from all wells and any surface water and 10' the proposed and existing water
services in the area.
Lot 8, Horizon Estates
September 19, 2014
Page Two
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.
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.
Sincerely,
Michael E. Anderson, P.E.
Attachments
G0¥ERNI~IENT LOT 6, ~11AC~S ~' B, AND C
NO CONFLICTS
400
eT"19 10
410
40,070 sq.ft
14,000 Square Fee~
® TH20
Septic Reserve Amc3
16,000 Square Feet
Septic Reserve Area
~: MICHAEL E ANDmSK1N
~**' ~/~ *,o NO. CE-4381 .-* %~ ~I~
TRACT B
LEGEND
Well
LOT 8
450
M',LT, LD,ROW STREET ,'
LOT 8, HORIZON ESTATES
SUBDIVISION
AREA HAP
SCALE 1" = i00'
Test F
Well L
Conto~
~le Designation and Location
:arian with 100' Protective
Interval - 2'
NO CONFLICTS
LOT 8,
HORIZON ESTATES
SUBDIVISION
= 4~50 SF
NOTE:
No Areas of Excessive Slope or
Surface Water ore Within 100' of Any
Part of the New Septic System.
LEGEND
MT - Monitor Tube
FCO - Foundetlon Cleon Out
TH - Test Hole
CO - Cleon Out
FSV-
Four
15' T & E
2C0
49th
MICHAEL E. ANDERSON
NO. CE-438t
MULDROW STREET
SlTF PLAN
SCALE 1n = 40'
HORIZON ESTATES SUBDIVISION
LOT 8
DESIGN FACTORS: SYSTEM REQUIREMENTS:
Four Bedroom Home Deep Trench System
Perc. Rate: 17-20 Min./Inch 1,250 Gallon Septic Tank
Application Rate: .6 GPD/SF 8' Drainfield Rock
4 Bedrooms X 150 GPDI.6GPDISF (Application Rate) = 1,000 SF Absorption Area
1,000 SF/16 SF/LF = 62.5 LF Trench Length
THEREFORE: Construct a 63' Long x 3' Wide x 8' Effective Depth Absorption Trench at the
Location Shown. Flow Line Elevation in the Trenches to be 3' Below Original Ground. Total Depth
to Be 11' Below Existing Ground. Provide 4' of Cover Qver Septic Tank and a Minimum of 3'
Cover Over Absorpiton Trenches. Maintain 100' Separation from Wells in the Area.
Natural
Backfill
Geotextile
6" C 4" Perforated
PVC (Holes Down)
Rock
TYPICAL DEEP TRENCH SECTION
-- -- ----'7~s~ ..-"~..'~' ..'~"%~ .........~;
NOTE: Grade Area Over Trench to Drain Away. ~?'
M'i ' ' ~
In ~um 6 Separation From Bedrock ....... ,..,....,,.~..,.,¢,......~.,~....~
Minimum 4' Separation From Groundwater ~ ~* / ~ ~ ~ --
M~mmum 100 Separation From Wells ~n the Area. ~
Minimum 100' Separation From Sudace Water or Streams: ~,~<~, No
4700
DEPTH
(~et)
1
2
3
4
5
6
7
8
9
11
20-
MUNICIPALITY Of ANCHORAGE
DEVELOPMENT SERVICES DEPARTMENT
BRAGAW STREET ANCHORAGE, AK 99519-6650
TROY DAVIS HOMES
PROJECT No.:
TECHNICIAN:
TEST HOLE2 ]
SOILS LOG - PERCOLATION TEST
LEGAL DESCRIPTION: LOT 8, HORIZON SUBDIVISION
PERFORMED FOR:
DATE: 1019/I,5
PARCEL ID#:
OB/OG
SILTY GRAVEL
WITH SAND
GM
DENSE
BOH @ 19.5'
A. HARALA
SLOPE
SITE PLAN
SEE SITE PLAN
WAS GROUND WATER ENCOUNTERED? NO
IF YES @ WHAT DEPTH?. ~
DEPTH OF WATER AFTER MONITORING: NONE b 2°/° -- '-
DATE OF MONITORING: 10/16/L5 ~
DEPTH TO
DATE READiNGiGROSS TINE NET TINF WATER NET DROP
(MINUTES) (MINUTES) (INCHES) (INCHES)
TEST HOLE PRESOAKED PRIOR TO TESTING:
10/9 1 13:55 7.00"
2 14:25 30 9.31" 2.31"
3 14:26 7.12"
4 14:56 30 8.94" 1.82"
5 14:58 7.12"
6 15:28 30 8.88" 1.75"
PERCOLATION RATE:17 (MIN/INCH) PERC. HOLE DIA. 6" (INCHES)
TEST RUN BETWEEN: 4.5 FT. and 5.5 FT.
COMMENTS: TEST HOLE PRE S{~AKED PRIOR TO TEST.
TEST PERFORMED BY ANDERSON ENGINEERING. 1, MICHAEL E. ANDERSON CERTIFY THAT
THIS WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPLE GUIDELINES IN EFFECT ON THIS
DATE: 10/20/13
4700
MUNICIPALITY OF ANCHORAGE
DEVELOPMENT SERVICES DEPARTMENT
BRAGAW STREET ANCHORAGE, AK 99519-6650
LEGAL DESCRIPTION:
PERFORMED FOR:
DATE: 10/9/15
PARCEL ID#:
DEPTH
(feet)
OB/OS
1
3
4
5
6--
7--
8 SILTY GRAVEL
W~TH SAND
9 GH
SOILS LOG - PERCOLATION TEST
LOT 8, HORIZON SUBDIVISION
11
DENSE
BOH @ 19.5'
20
TROY DAVIS HOMES
PROJECT No.:
TECHNICIAN:
A. HARALA
SLOPE
SITE PLAN
SEE SITE PLAN
WAS GROUND WATER ENCOUNTERED? NO
DEPTH OF WATER AFTER MONITORING: NONE
DATE OF MONiTORiNG: 10/16/13
DEPTH TO
DATE READING GROSS TiNE NET TINE WATER NET DROP
(MINUTES) (MINUTES) (INCHES) (INCHES)
TEST HOLE PRESOAKED PRIOR TO TESTING:
10/9 1 13:51 5.75"
2 14:2l 30 7.38" 1.63"
3 14:22 5.58"
4 14:52 30 7.19" 1.56"
5 14:55 5.69"
6 15:25 30 7.19" 1.50"
PERCOLATION RATE:20 (MIN/INCH) PERC. HOLE DIA. 6" (INCHES)
TEST RUN BETWEEN: 4.5 FT. and 5.5 FT.
COMMENTS: TEST HOLE PRE SOAKED PRIOR TO TEST,
TEST PERFORMED BY ANDERSON ENGINEERING. I, MICHAEL E. ANDERSON CERTIFY THAT
THIS WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPLE GUIDELINES IN EFFECT ON THIS
DATE:. 10/20/15
On -Site Water System Permit
MUNICIPALITY OF ANCHORAGE
Development Services Department
On -Site Water & Wastewater Program
4700 Elmore Road, PO Box 196650
Anchorage, AK 99519-6650
Telephone: (907) 343-7904
Permit Number: OSP141029
Tax Code Number: 05132418000
Work Type: Well Initial
Permit Effective Dates: March 04, 2014 to March 04, 2015
Design Engineer:
Subdivision: AK STATE LAND SURVEY 2006-3
Site Legal Address: AK STATE LAND SURVEY 2006-3 GOVERNMENT LT 6 TR C G:0553
Owner/Address: TROY DAVIS HOMES INC Propa_cea l= 4. Lc4g
165 E PARKS HWY STE 200 WASILLA AK 996547059
Site Mailing Address: 18311 MULDROW ST, Eagle River Lot Size in Sq Ft: 276600
Total Bedrooms: 4
This permit is for the construction of:
N Disposal Field N Septic Tank N Holding Tank N Privy Y Private Well N 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 wastewater code requires inspections during the installation. The engineer must notify the Development Services
Department at least 2 hours prior to each inspection. Provide notification by calling (907) 343-7904 (24 hours).
4. From October 15 to April 15, a subsurface soil absorption system under construction during freezing weather must either:
A. Open and Close on the same day.
B. Covered, sealed, and heated to prevent freezing.
Received By:
3 -.S-
MUNICIPALITY OF
Community Development Department
Development Services Division
On -Site Water & Wastewater Program
ANCHORAGE
Phone: 907-343-7904
Fax: 907-343-7997
' / ON-SITE SEWERM/ELL PERMIT APPLICATION
I H L
Parcel l.D. O5A—:Jatl—t d
Property owner(s)
Mailing address _
phone
e �
i
( $344.
Site address
Legal description (Sub'd., Block & Lot) „d �_{Q ="Ch e-' - G Ss 3
Legal description (Township, Range & Section)
Lot Size Sq. Ft. Number of Bedrooms 4
APPLICATION IS FOR:
APPLICATION IS AN: TYPE OF DWELLING:
(® all that apply)
Absorption Field ❑
Initial
Single Family (SF)
Septic Tank ElUpgrade
(w/wo ADU)
ElDuplex
Tank ❑
Renewal
ElDuplex(D) El
Dwellings ❑
Privy ❑
(SF and/or D)
Private Well X
Water Storage ❑e,\����
THIS APPLICATION INCLUDES
A VARIANCE / WAIVER REQUEST FOR:
z % 2i__
Distance:
I certify that the above information is correct. I further
certify that this is in accordance with
applicable Municipal Codes.
(Signature of pro ow eror authorized agent)
IJppA
Permit/Rush Fees: Kw �} aiver Fees: _
Date of Payment: 2 = 42 ZZ ate of Payment:
Receipt Number: Receipt Number:
Permit No. (98/0 tulU29 Waiver No.
Perm@App__ :.::..mac:
From: Jim Munter [mailto:jamunter@arctic.net]
Sent: Tuesday, March 04, 2014 9:47 AM
To: Mike Anderson
Cc: Wourosh Partow'
Subject: Re: Horizon Estates
Mike,
The locations shown on the attached map, with separation distances from the well on lot 7 of 50 ft and 250 ft are
good locations for the new wells for the aquifer testing program. I recommend proceeding with installation of the
wells at those locations. Hopefully this is sufficient for your needs at this time.
Jim Munter, Principal Hydrogeologist
J. A. Munter Consulting, Inc.
N
W TH21
/ TH22
%40,032
0
Fq
sq.ft.�'�v,
g _ \
409030/'S .ft.
15' T & E EASEME T / 5513
189.73
SCALE 1 " = 60'
1
TRACT B
/'-
St A, Lik"a SJrJ4�{
4 ,146 q.ft.
I(0
� PropeE�d L���
42.74 1 /
LTLDROW S/rfRXYT
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