HomeMy WebLinkAboutCROSS VIEW ESTATES BLK 1 LT 7Cross View
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Lot 7
015-301
-55
Permit Number:
Tax Code Number:
Work Type:
On-Site Water & Wastewater System Permit
OSPl11328
01530155000
WellSeptic
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
Initial
Permit Effective Dates: December 02, 2011 to December 01, 2012
Design Engineer: ANDERSON ENGINEERING
Subdivision: CROSS VIEW ESTATES
Site LegalAddress: CROSSVIEW ESTATES BLK 1 LT 7 G:2737
Owner/Address: HARDING HOMES OF ALASKA INC
5771 HERITAGE HEIGHTS DRIVE ANCHORAGE AK 995162362
Site Mailing Address: 5179 HERITAGE HEIGHTS,DR, Anchorage
Lot Size in Sq Ft: 40209
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 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.
Special Provisions:
The Engineer needs to deepen the 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 pending On-Site review and approval.
Date:
MUNICIPALITY OF ANCHORAGE
Community Development Department
Development Services Division
On-Site Water & Wastewater Program
Phone: 907-343-7904
Fax: 907-343-7997
Mayor Dan Sullivan
ON-SITE SEWER/WELL PERMIT APPLICATION
FOR A SINGLE FAMILY DWELLING
Parcel I.D. 015-301-55
Property owner(s): Harding Homes of Alaska Day phone:
Mailing address: 5771 Heritage Heights Drive Anchorage, AK 99516
Site address: 5179 Heritage Heights Drive Anchorage, AK 99516
Legal description (Sub'd., Block & Lot): Cross View Estates, Block 1, Lot 7
Legal description (Township, Range & Section)
Lot Size: 40,209 Sq. Ft. Number of Bedrooms: Five (5)
350-1860
THIS APPLICATION IS FOR:
(~] all that apply)
Absorption Field X
Septic Tank X
Holding Tank []
Privy []
Private Well ~'
Water Storage []
THIS APPLICATION IS AN:
Initial X
Upgrade []
Renewal []
THIS APPLICATION INCLUDES A VARIANCE / 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. (~"~ ~
Waiver Fees:
Date of Payment:
Receipt Number:
Waiver No.
C:\Users~AndEng\Desktop\Permit Application.docC:\Users~AndEng\Desktop\Permit Application.doc
November 5, 2011
Municipality of Anchorage
Development. Services Department
On-Site Water and Wastewater Program
4700 South Bragaw Street
Anchorage, AK 99519-6650
Subject:
Lot 7, Block 1, Cross View Estates Subdivision
Septic System Design and Permit Application
Impacts to Adjacent Properties
Dear Onsite Services Engineer:
The owner of Lot 7, 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 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.
The test holes recently placed on the lot in the area of the absorption trenches and
alternate site indicate silty sand and gravel (GM/SM). The percolation rate of the soil
was determined to be between 30 and 60 minutes per inch. No groundwater was found
during the placement of the test hole and none was noted during the monitoring period.
An application rate of .45 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 two
56' long by 3' wide 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 will be 4' below the surface and the total depth will be 11.5'. 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. A flow splitter valve will be placed to insure even
flow to each trench.
Several test holes and wells have been placed in the Cross View Estates Subdivision.
None indicate the presence of bedrock at depths less than 50' below the surface. We
Lot 7, Block 1, Cross Point Estates Subdivision
November 5, 2011
Page Two
are confident no bedrock exists within 6' of the bottom of the proposed absorption
trenches.
The ground surface on the lot in the area of the septic system slopes to the northwest
at a shallow grade. 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:
o
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
/ TALUS DRIVE
LOT 1x-,
BLOCK 1~,,
TALUS WEST",,
\, /1111 IIi
LOT 13 /
BLOCK 2 ///
TALUS WEST//
LOT 9
BLOCK 1
......... LILAC PARK
/
/
LOT 1 1 /
,, BLOCK 2 /
xx LILAC PARK
~.~:..~.;....;~ ................. ;,~.~ )
g
LOT 6 /
VACAN~
/
"~ ,c,,/ r'~ .... ',
LOT 5 "7 - - '-/¥TM
,, I/ _'_I_
" F --~ '
AREA
MAP
SCALE 1' = 100'
LOT 7, BLOCK 1, CROSS VIEW ESTATES SUBDIVISION
DESIGN FACTORS: SYSTEM REQUIREMENTS:
Five Bedroom Home Deep Trench System
Perc. Rate: 30-60 Min./Inch 1,500 Gallon Septic Tank
Application Rate: .45 GPD/SF 7.5' Drainfield Rock
5 Bedrooms X 150 GPD/.45 GPD/SF (Application Rate) -- 1,666.7 SF Absorption Area
1,666.7 SF/15 SF/LF = 111.1 LF Trench Length
THEREFORE: Construct 2 - 56' Long x 3' Wide x7.5' Effective Depth Absorption Trenches at the
Location Shown. Flow Line Elevation in Trench to be 4' Below Original Ground Surface. Total Depth
to be 11.5' 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.
'6"
11
Natural
Backfill
Geotextile
-- Fabric
4" Perforated
PVC (Holes Down)
Drainfield Rock
TYPICAL DEEP TRENCH SECTION
U
( O SCALE) _~ .'~ ........... /,~ ~,
............
NOTE: Grade Area Over Trench to Drain Away. , ~
Minimum 6' Separation From Bedrock. ~,,,,,~(.,,,,4,.9th
Minimum 4' Separation From Groundwater. ~ ~~
Minimum 100' Separation From Wells in the Area ~'~'~'"~'~,"~~'~ '
Minimum 100' Separation From Surface Water or Streams. ~:~'-.. No. '~"~ .'""~-?
'<~':..
Municipality of Anchorage
Development Services Department
Building Safety Division
On-Site Water and Wastewater Program
4700 Elmore Road
P.O. Box 196650 Anchorage, AK g9507
www. ci.anchoriac~9.ek.~s
(907) 343-7904
Soils Log - Percolation Test
Performed For. Harding Homes of Alaska
Legal Description: Cross View Estates, L7, B1
5-
6-
7-
8-
9-
10-
11-
12-
15-
Date Pedo~ed: November 1,2011
SIo
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Site Plan
WAS GROUNDWATER
ENCOUNTERED? No
s
IF YES, AT WHAT DEPTH? XXX L
Depth to Water After '~/~"~, op
Monitoring? E
Township, Range, Section:
Reading Date Gross Time 'Net Time Depth to Water Net Drop
19-
PERCO~ON ~ ~e~ (mi~n~) PERC HOLE D~ME~R
~ST RUN B~EN
COMMENTS Peru Cavi~ ~s pre-soaked pdor to t~ng-
TEST HOLE # 2
PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. DATE: I ~- IL- i t
Municipality of Anchorage I ~ ~,,~h~,~e,~.~ ~. I
Development Se~s Depa~meflt
47~ Elmom Road
P.O. Box~.d.an~omae.ak. usl~50 ~o=ge,
Soils Log - Percolation Test / '~.?~0.~*%~~ I
Pe~ Fo~ Ha~ing Homes of Alas~ Date Pedo~ed: November'S1
Legal Description: Cross View Estates, L7, B1
6-
7-
8-
9-
10-
Iil,
!i1
Ill
I11
WAS GROUND WATER
ENCOUNTERED? NO
IF YES, AT WHAT DEPTH? XXX
Depth to Water After
Township, Range, Section:
t
Reading Date Gross Time Net Time Depth to Water Net Drop
*I~;P,~ '~ ,~;,~. '7, W" ~..~."
/' /,,/,1,,
11-
12-
13-
14-
15-
16-
17-
18-
19-
PERCOLATION RATE 4 ~ PERC HOLE DIAMETER "7
TEST RUN B~EN .~'~ Fq' AND ~'F)/I~ FT
COMMENTS Peru Cavity was pre-soaked prior to testing-
TEST HOLE # 1
PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. DATE: