HomeMy WebLinkAboutPARADISE VALLEY BLK 1 LT 7Pa adi
Vail
Y
Block
Lot 7
#020-424-27
On-Site Water & Wastewater System Permit
MUNICIPALITY OF ANCHORAGE
Development Services Department
On-Site Water & Wastewater Program
4700 Elmore Road, PO Box ~96650
Anchorage, AK 99519-6650
Telephone: (907) 343-7904
Permit Number: OSP141083
Tax Code Number: 02042427000
Work Type: WellSeptic Initial
Permit Effective Dates: May 01, 2014 to May 01,2015
Design Engineer: ANDERSON ENGINEERING
Subdivision: PARADISE VALLEY
Site LegalAddress: PARADISE VALLEY BLK I LT 7 G:3538
Owner/Address: HAIL PAUL F & LARISSA V
18921 ANDREANOF DR EAGLE RIVER AK 995778641
Site Mailing Address: 5910 Greece DR, Anchorage
This permit is for the construction of:
Y Disposal Field Y Septic Tank N Holding Tank
Lot Size in Sq Ft: 19474
Total Bedrooms: 5
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 ...........
~rovisions: '
1. 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.
2. Proposed system too deep for soils information submitted. The Engineer needs to do an
additional test hole prior to the construction of the septic field. Construction may proceed at your
own risk before the 7 day water monitoring is complete. 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 p_endin~ ~n:-~Si[e~rev~w an~ ~proval
MUNICIPALITY OF ANCHORAG. UBMITTA
APR,22014
Community Development Department Phone: 907-343-7904
Development Se~ices Division Fax: 907-343-7997
On-Site Water & Wastewater Program
ON-SITE SEWER/WELL PERMIT APPLICATION
Pamel I.D. 020-424-27
Property owner(s) Paul & Larissa Hale Day phone 339-7651
Mailing address 18921 Andreanof Drive Anchorage, AK 99577
Site address Greece Drive Anchorage, AK 99516
Legal description (Sub'd., Block & Lot) Paradise Valley, Block 1, Lot 7
Legal description (Township, Range & Section)
Lot Size 19,474 Sq. Ft. Number of Bedrooms Five (5)
APPLICATION IS FOR:
(1~ all that apply)
Absorption Field []
Septic Tank []
Holding Tank []
Privy []
Private Well []
Water Storage []
APPLICATION IS AN:
Initial []
Upgrade []
Renewal []
TYPE OF DWELLING:
Single Family (SF)
(wlwo ADU)
Duplex (D)
Multiple Dwellings
(SF and/or D
THIS APPLICATION INCLUDES A VARIANCE / WAIVER REQUEST FOR:
Dis tance:
I certify that the above information is correct. I further certify that this is in accordance with
applicable Municipal Codes.
(Signature of property owner or authorized agent)
PermitJRush Fees:
Date of Payment:
Receipt N umber:
Permit No.
Waiver Fees:
Date of Payment:
Receipt Number:
Waiver No.
Permit App_2* :- :g. Jc -,'
April 20, 2014
Municipality of Anchorage
Development Services Department
On-Site Water and Wastewater Program
4700 South Bragaw Street
Anchorage, AK 99519-6650
Su~e~:
Lot 7, Block 1, Paradise Valley Subdivision
Septic System Design and Permit Application
Impacts to Adjacent Properties
Dear Onsite Services Engineer:
The owner of Lot 7, Block 1, Paradise Valley Subdivision intends to construct a new
five-bedroom home on the lot. We are therefore requesting a permit be issued for the
construction of a new well and septic system to accommodate the home. The attached
Site Plan and backup documentation identify the location and configuration of the
proposed well and septic system along with the alternate site. Also identified on the
plans are the existing wells and septic systems on surrounding lots. No conflicts exist
between the proposed well and septic system and wells or septic systems on adjacent
lots. Drainage arrows are shown on the site plan showing the grade and direction of
flow on the lot. The drainage pattern will not be changed as a result of this project.
Two test holes were recently placed on the lot in the area of the absorption trench and
alternate site. The logs indicate the presence of gravel with some silt and sand (GM).
The percolation rate of the soil was determined to be between 6 and 15 minutes per
inch. No groundwater was found during the placement of the test holes and none was
noted during the monitoring period. An application rate of .8 gallons per day per square
foot was used in the design of the absorption system. We are proposing to place a new
1,500-gallon septic tank and a 60' 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 southwest
at a shallow grade. The new trench will be constructed parallel with the contours of the
slope as much as possible in conformance with Municipal requirements, The new
Lot 7, Block 1, Paradise Valley Subdivision
April 20, 2014
Page Two
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.
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
PARADISE
LOT
VALLEY SUBDIVISION
7, BLOCK 1
19,4-74- S.F.
Proposed ®
Well
AC
/
/
~ent System
with o 16' Long x 5' Wide
6' Effective Depth Absorption
Trench. ~ GPD/SF
dicoUon Rote.
1,5o0 Gallon
Tonk
1,500 Gallon Septic Tonk
a 60' Long x 3' Wide x
Effective Depth
Trench.
F
SITE PLAN
SCALE 1' = 30'
CO - Cleanout
SV - Septic Vent
TH - Test Hole
~ MT - Monitor Tube
~FCO - Foundofion Cleon Out
- Test Hole S~S
ow Splitter Valve
LOT 7, BLOCK 1, PARADISE VALLEY SUBDIVISION
DESIGN FACTORS: SYSTEM REQUIREMENTS:
Five Bedroom Home Deep Trench System
Parc. Rate: 6-15 Min./Inch 1,500 Gallon Septic Tank
Application Rate: .8 GPDISF 8' Dreinfield Rock
5 Bedrooms X '150 GPD/.8 GPD/SF (Application Rate) = 937.5 SF Absorption Area
937.5 SF116 SF/LF = 58.6 LF Trench Length
THEREFORE: Construct a 60' Long x 3' Wide x 8' Effective Depth Absorption Trench at the
Location Shown. Flow Line Elevation in Trench to be 3' Below Original Ground Surface. Total Depth
to be 11' Below Existing Ground. Provide 4' Cover Over Septic Tank and 3' Cover Over Absorption
Trench. Maintain 100' Separation from Wells in the Area.
Natural
Backfill
Geotextile
-- Fabric
4" Perforated
PVC (Holes Down)
Drainfield Rock
TYPICAL DEEP TRENCH SECTION
NOTE: Grade Area Over Trench to Drain Away. ~."" .,a.L
Minimum 6 Separation From Bedrock. ,....~,~......,,.....,~ ........ ~.......~.....~
Minimum 4 Separabon From Groundwater. ~"AY~bcc~.~
Minimum 100' Separabon From Wells in the Area. ~.~. MICHAELE'AN[IERSON
Minimum 100' Separation From Surface Water or Streams. ~c~;~.o No. cE-~s~
-,,~.....~-,,.~..,-
4700
DEPTH
(feet)
1
2
3
4
$
6
7
8
9
11
I~IUNICIPALITY OF ANCHORAGE
DEVELOPMENT SERVICES DEPARTMENT
BRAGAW STREET ANCHORAGE, AK g0519-6650
SOILS LOG - PERCOLATION TEST
LEGAL DESCRIPTION:
PERFORMED FOR:
DATE: 4/18/1&
PARCEL ID~:
OB/OG
SILTY GRAVEL
WITH SAND
GH
BOH @ 15.5'
LOT 7, BLOCK I, PARADISE VALLEY SUBDIVISION
PAUL HAIL
PROJECT No.:
TECHNICIAN:
I TEST HOLE 1 I
W. ROBERTS
SLOPE
SITE PLAN
SEE SITE PLAN
WAS GROUND WATER ENCOUNTERED? NO
DEPTH OF WATER AFTER MONFFOKING: NONE 20/0
DEPTH TO
DATE READING GROSS TIME NET TINE WATER NET DROP
(MINUTES) (MINUTES) (INCHES) (INCHES)
TEST HOLE PRESOAKED PRIOR TO TESTING:
4/18 ] 11:00 4.00"
2 11:30 30 6.50" 2.50"
3 11:31 4.00"
4 12:01 30 6.50" 2.50"
5 12:02 4.00"
6 12:32 30 6.50" 2.50"
PERCOLATION PATE: 12 (MIN/INCH) PERC. HOLE DIA. 6" .(INCHES)
TESTRUNBETWEEN: 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 MUNIC!PLE GUIDELINES IN EFFECT ON THIS
DATE: 6/8/2010
4700
[v]UNICIPALITY OF ANCHORAGE
DEVELOPMENT SERVICES DEPARTMENT
BRAGAW STREET ANCHORAGE, AK 99519-6650
SOILS LOG - PERCOLATION TEST
LEGAL DESCRIPTION:
PERFORMED FOR:
DATE: 4/18/14
PARCEL ID#:
DEPTH
(feet)
0B/OG
1
2
3
4
5
6
?
SILTY GRAVEL
WITH SAND
BOH @ 15.5'
11
20,
LOT 7, BLOCK [, PARADISE VALLEY SUBDIVISION
PAUL HAIL
PROIECT No.:
TECHNICIAN: W. ROBERTS
I TEST.OLE2 I
SLOPE
WAS GROUND WATER ENCOUNTERED? NO
b
SITE PLAN
SEE SiTE PLAN
2%
DEPTH TO
DATE READING GROSS TIHE NET TIHE WATER NET DROP
(HINUTES) (MINUTES) (INCHES) (INCHES)
TEST HOLE PRESOAKED PRIOR TO TESTING:
4/18 I 11:22 2.75"
2 11:52 30 5.25" 2.50"
3 11:53 2.75"
4 12:23 30 5.25" 2.50"
5 12:24' 2.75"
6 12:54 30 5.25" 2.50"
PERCOLATION RATE: 12 .(MIN/INCH) PERC. HOLE DIA. 6" (INCHES)
TEST RUN BETWEEN: 4.0 FT. and 5.0 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:. 6/8/2010