HomeMy WebLinkAboutCROSS VIEW ESTATES BLK 1 LT 9Cross View
Estates
Block 1
Lot 9
#015-301-57
On-Site Water & Wastewater 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: OSP121004
Tax Code Number: 01530157000
Work Type: WellSeptic Initial
Permit Effective Dates: January 20, 2012 to January 19, 2013
Design Engineer: ANDERSON ENGINEERING
Subdivision: CROSS ViEW ESTATES
Site LegalAddress: CROSS VIEW ESTATES BLK 1 LT 9 G:2737
Owner/Address: MCALLEN CHARLES & ANGELA
240 BOTANICAL CIRCLE ANCHORAGE AK 995150000
Site Mailing Address: 5201 HERITAGE HEIGHTS DR, Anchorage
Lot Size in Sq Ft: 46686
Total Bedrooms: 5
This permit is for the construction of:
Y Disposal Field Y 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 Ddnking Water Regulations (18AAC80).
3. The wastewater code requires inspections during the installation. The engineer must notify the Development Services
Department at least 2 hours pdor 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 0n the same day.
B. Covered, sealed, and heated to prevent freezing. '
~,, Special Provisions:
'~.. The Engineer needs to do an additional test hole prior to the construction of the septic field to
,~letermine the ground water level and if there is an impermiable layer. C~nstruction may;proceed .-
a[yo,,r own dsk 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 pending On-Site review and approval. ~ '
MUNICIPALITY OF ANCHORAGE
Community Development Department
Development Services Division
On-Site Water & Wastewater Program
Mayor Dan Sullivan
Phone:907-343-7904
Fax:907-343-7997
ON-SITE SEWERNVELL PERMIT APPLICATION
0 57 100ur FoR A SINGLE FAMILY DWELLING
Parcel I.D. 015-301-57
Property owner(s): Charles and Angela McAIlen
Mailing address: 240 Botanical Circle Anchorage, AK 99515
Site address: Heritage Heights Drive Anchorage, AK 995t 6
Legal description (Sub'd., Block & Lot): Cross View Estates, Block 1, Lot 9
Legal description (Township, Range & Section)
Lot Size: 46,686 Sq. Ft. Number of Bedrooms: Five (5)
Day phone:
THIS APPLICATION IS FOR:
([~ all that apply)
Absorption Field X
Septic Tank X
Holding Tank []
Privy []
Private Well X
Water Storage []
THIS APPLICATION IS AN:
Initial X
Upgrade []
Renewal []
THIS APPLICATION INCLUDES A VARIANCE I WAIVER REQUEST FOR:
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:
Date of Payment:
Receipt Number:
Permit No.
'72,0
Waiver Fees:
Date of Payment:
Receipt Number:
Waiver No.
C:\Users~And E ng\Desktop~Permit Application.docC:\Users~AndEng\Desktop~Permit Application.doc
I ANDERSON ENGINEERING
PiOi BOX 240773 I
ANCHO~GE, AK 99524 I
$22.7773 67~7766 :(F~) I
Janua~ 4,2012
Municipality of Anchorage
Development Services Department
On-Site Water and Wastewater Program
4700 South Bragaw Street
Anchorage, AK 99519-6650
Subject:
Lot 9, Block 1, Cross View Estates Subdivision
Septic System Design and Permit Application
Impacts to Adjacent Properties
Dear Onsite Services Engineer:
The owner of Lot 9, Block 1, Cross View Estates 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 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. 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.
The test hole placed on the lot in the area of the absorption trenches and alternate site
indicate silty sand with gravel (SM/ML). The percolation rate of the soil was determined
to be 8 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 .6
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 2-4-2~I~,~§ by 3' w;,J= by 7.5'
effective depth absorption trenches to treat and dispose of the effluent generated in the
house. The elevation of the distribution line in the absorption trench.. ............ v the
surface and the tot_~! ,2_~pth will b~ 11.5'. A flow splitter valve will be placed to insure
even flow to each trench. 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.
Only one test hole was placed on the lot during the subdivision process. The City
approved the subdivision based on the single hole to a depth of 16'. None of the test
~o~ t
Lot 9, Block 1, Cross Point Estates Subdivision
January 4, 2012
Page Two
holes in the subdivision indicate the presence of bedrock nor do any of the logs of water
wells placed to date..Both the primary absorption system and the alternate site fall
within the 30' radius of the single test hole.
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.
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
~..Y~~'""~ ...................... ....,....~
'~OFESS ~~
/ TALUS DRIVE
LOT 9
BLOCK 1
LILAC PARK
LOT B
VACAN%
LOT 6 /
VACA~
LOT 10
VACANT
NOTE:
No Areas of Excess'we Slope or
Surface Water are Within 100' of Any
Part of the New Septic System,
CROSS
PLAT NO. 2006-171
VIEW ESTATES SUBDIVISION
LOT 9, BLOCK ~
46,686 S.F.
Five Bedroom
Home
LEGEND '
~ - Monitor Tub.
FCO- Foundation Cl~n Out
~6 - c,... out
FSV - Flow 5pli~er Va~e
THG - Test Hole Gomess
SCAL£ 1' = 50'
LOT 9, BLOCK 1, CROSS VIEW ESTATES SUBDIVISION
DESIGN FACTORS: SYSTEM REQUIREMENTS:
Five Bedroom Home 5' Wide Trench System
Perc. Rate: 8 MinJInch 1,500 Gallon Septic Tank
Application Rate: .6 GPD/SF 4' Drainfield Rock
5 Bedrooms X 150 GPDI.6GPD/SF (Application Rate) = 1,250 SF Absorption Area
1,250 SF/5 SF/LF*.5 (Red. Factor) = 125 LF Trench Length
THEREFORE: Construct 2 - 63' Long x 5' Wide x 4' Effective Depth Absorption Trenches at the
Location Shown. Flow Line Elevation in Trench to be 2' Below Original Ground Surface. Total Depth
to be 6' Below Existing Ground. Provide 4' Cover Over Septic Tank and 3' Cover Over Absorption
Trench. Maintain 100' Separation from Wells in the Area. Place Splitter Valve to Insure Even
Flow to Each Trench.
Natural
Backfill
Geotextile
Fabric
4" Perforated
PVC (Holes Down)
~. OF A
Dra~nfield Rock ~ ~ · ,, ....
TYPICAL DEEP TRENCH SECTION
NOTE:
(NO SCALE)
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.
h700
[
MUNICIPALITY OF ANCHORAGE
DEVELOPMENT SERVICES DEPARTMENT
ELMORE ROAD ANCHORAGE, AK 99519-6650
DEPTH
(feet)
LEGAL DESCRIPTION:
PERFORMED FOR:
DATE:_
PARCEL ID#:
SOILS LOG - PERCOLATION TEST
LOT 9, BLOCK I, CROSS VIEW ESTATES SUB.
CHARLIE ['¢ICALLEN
2 /2
3
4
5
6 GH
7
8
9
13
14
16
17
18 B OH
19
2O
PROJECT No.:
TECHNICIAN:
SLOPE
B. SCHILLER
WAS GROUND WATER ENCOUNTERED? NO
,P.,'Es @ WHAT D¢'.~.__
DEPTH OF WATER AFTER MONITORING: NONE
DATE OF MONITOPdNG: 1/24/12
Professional Engineers Stamp:
SITE PLAN
SEE SiTE PLAN
DATE READING GROSS TIHE NET TIMEI %~HERT0INETpROP
I (~'NUTES) I(mNUTES) I ('NCHES) IONcHEs)
I TEST HO.E PRESO XED PR,OR T2, TESTING:
1/24 1 9:01/9:u 10 1.13/7.50" 6.37"
2 9:12/9:22 10 1.25"/7.50" 6.25"
3 9:23/9:33 r 10 1.25"/7.38" 6.13"
I 4 9'34/9'44 10 1.13"/7.25" 6.12"
5 9:45/9:55 10 1. IY'/7.25" 6.12"
6 9:56/10:06 10 1.13"/7.25" 6.12"
PERCOLATION RATE: 1.6 (MIN/INCH PERC. HOLE DIA. 6" aNChmS
TEST RUN BETWEEN: 3 FT. and 4 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:, 1/24/2012
ISOIL LOG - PERCOLATION T£STI
LEGAL DESCRIPTION' HERITAO£ HILLS SUBDIVISION ~1; TRACT C&D (PROPOSED LOT 9>
DEPTH ~
(feet> l~---:-,~i ORGANICS ITH#9/PTS#524 I
i LOAM SOiL CLASSIFICATIONS
~:-~.~,~ GW ~ OR6
GM CL
GC OL
i oSW MH
sc SITE PLAN
DEPTH TO
GROUNDWATER DATE
DRY 8/31/2005
SM/ML DRY 19/19/2005
I
lO I
11 DATE READING CLOCK NET TIME WATER LEVEL NET DROP
. TIME (MINUTES) READING (INCHES)
12 9/2/05 1 2:00 6" -
2 2:30 30 1" 5"
13 5 2:30 6" -
4 3:00 30 1" 5"
14 i 5 3:00 6" -
6 3:30 30 1" 5"
15
16-~.
18
PERCOLATION RATE *6 (MIN./INCH) PERC. HOLE DIA. 6 (INCHES)
19
TEST RUN BETWEEN 5 FT. AND 6 FT.
20 A FOUR HOUR PRESOAK WAS PERFORMED: [] YES [] NO
SOILS LOGGED BY: JODY MAUS PERCOLATION TEST PERFORMED BY: CALEB GALL
COMMENTS: *RECOMMEND USING A 0.6 APPLICATION RATE
PERFORMED BY GEG, Ltd. I. JEFFREY A. GARNESS. CERTIFY THAT THIS WAS PERFORMED IN ACCORDANCE
WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE: /'('~)J,~]
DEPTH TO
GROUNDWATER DATE
DRY 8/31/200~
DRY 9/19/2005