HomeMy WebLinkAboutTUXEDNI PARK WEST BLK 1 LT 11Tuxedni Perk
Block I
Lot 11
#041-022-49
Permit Number:
Tax Code Number:
Work Type:
On-Site water & Wastewater System Permit
OSP151317
04102249000
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: November 28, 2015 to November 27, 2016
Design Engineer: ANDERSON ENGINEERING
Subdivision: TUXEDNI PARK WEST
Site Legal Address: TU×EDNI PARK WEST BLK 1 LT 11 G:2042
Owner/Address: FITZGERALD CHARLES D &
ELIZABETH A 10961 KASKANAK DR EAGLE RIVER AK 995778310
epartment
Site Mailing Address: 9760 ATELIER DR, Anchorage
Lot Size in Sq Ft: 175255
Total Bedrooms: 4
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 15165 and the State of Alaska Wastewater
Disposal Regulations (18AAC72) and Drinking Water Regulations (18AAC80).
3. The wastewater code requires inspections during the installation. The engineermust 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:
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/WELL PERMIT APPLICATION
Parcel I.D. 041-022-49
Property owner(s) Charles & Elizabeth Fitzgerald Day phone
Mailing address 10961 Kaskanak Ddve Eagle River, AK 99577
Site address NHN Atelier Drive Anchorage, AK 99516
Legal description (Sub'd., Block & Lot) Tuxedni Park West, Block 1, Lot 11
Legal description (Township, Range & Section)
Lot Size 175,255 Sq. Ft. Number of Bedrooms Four (4)
APPLICATION IS FOR: APPLICATION IS AN: TYPE OF DWELLING:
([~ all that apply)
Absorption Field [] Initial [] Single Family (SF) []
(w/wo ADU)
Septic Tank [] Upgrade []
Duplex (D) []
Holding Tank [] Renewal []
Multiple Dwellings []
Privy [] (SF and/or D)
Private Well []
Water Storage []
THIS APPLICATION INCLUDES A VARIANCE / WAIVER REQUEST FOR:
Distance:
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)
Permit/Rush Fees: ~2¢/'/'~'/~''' ~-' 7~~¢'~ Waiver Fees:
Date of Payment: 4~ ~ I ~' ~/~' Date of Payment:
Receipt Number: (~'~ 2-.¢0 (~ Receipt Number:
Permit No. ~¢J~ J;~ JOC Waiver No.
Permit App_g-1-12.doc
January 26, 2016
Municipality of Anchorage
Development Services Department
On -Site Water and Wastewater Program
4700 South Bragaw Street
Anchorage, AK 99519-6650
Subject: Lot 11, Block 1, Tuxedni Park West Subdivision
Septic System Design and Permit Application
Impacts to Adjacent Properties
Dear Onsite Services Engineer:
The owner of Lot 11, Block 1, Tuxedni Park West Subdivision intends to
new four-bedroom home on the lot. We are therefore requesting a permit k
the construction of a new well and septic system to accommodate the
attached Site Plan and backup documentation identify the location and con
the proposed well and septic system along with the alternate site. Also ider
plans are the existing wells and septic systems on surrounding lots. The
north and west are vacant and no conflicts exist between the proposed we
system and wells or septic systems on adjacent lots. Drainage arrows are sl
site plan showing the grade and direction of flow on the lot. The drainage
not change as a result of this project.
The test holes placed on the lot in the area of the absorption trench and a
were not consistent with that placed during the subdivision phase. OU
indicated organic material to 1' underlain by 1.5' of poorly graded gravel
material was underlain by gravel and sand with silt (GW/GM/SM) becoming
depth. The percolation rate of the soil was determined to be 7-9 minut
Groundwater was found at 15' during the placement of the subdivision to
rose to 14.5' during the monitoring period. The percolation rate in the len;
2.5' is faster than 1 minute per inch. The underlying material however is i
and effluent which passes through the sidewall of the faster material will pas
least 12' of the slower percolating material before it reaches the groundwati
application rate of .8 gallons per day per square foot was used in the d
absorption system. We are proposing to place a new 1,500 -gallon STEP tai
long by 5' wide by 4' effective depth absorption trench to treat and dis
effluent generated in the house. The elevation of the distribution line in the
truct a
aed for
e. The
ition of
on the
to the
septic
on the
3m will
ate site
holes
This
er with
�r inch.
4e and
n 1' to
slower
iugh at
le. An
of the
Ja75'
of the
Lot 11, Block 1, Tuxedni Park West Subdivision
January 26, 2016 p ,�
Page Two
i
trench will be 1' below the surface and the total depth will be 5'. In HO of fill 2" of
insulation and 2' of fill will be placed over the absorption trench and 4' over thie septic
tank.
I j
The ground surface on the lot in the area of the septic system slopes to the northwest.
The new trench will be constructed parallel with the contours of the slope as much as
possible in conformance with Municipal requirements. The new septic sy tend will be
constructed a minimum of 100' from all wells and any surface water and 110' the
proposed and existing water services in the area. j
If the system is constructed in accordance with our design the
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
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
space, either surface or subsurface, on any lots located in the area. j
4. The system, if constructed as designed, will have no advi
pattems in the area. The current drainage pattern will be
Sinc�erely�,
Michael E. Anderson, P.E.
Attachments
CCS(
LOT 11, BLOCK 1, TUXEDNI PARK WEST SU�RIVISION
DESIGN FACTORS: SYSTEM REQUIR
Four Bedroom Home 5' Wide Trench System
Perc. Rate: 7.5 Min.Anch 1,500 Gallon STEP Tank
Application Rate:.8 GPD/SF 4' Drainfield Rock
4 Bedrooms X 150 GPD/.8 GPD/SF (Application Rate) = 750 SF Absorption Area
750 SF/5 SF/LF = 75 LF Trench Length
THEREFORE: Construct 75' Long x 5' Wide x 4' Effective Depth Absorption Trenat toe Location
Shown. Flow Line Elevation in Trench to be 1' Below Original Ground Surface. Tonal Dgpth to be
5' Below Existing Ground. Maintain 100' Separation From Wells in the Area.
Revegetate Outer 6"
Mound w/Topsoil
1,6,E 3
�1
Natural
Backfill
6 2" Insulation &
Geotextile Fabric
6"
O 1"Perforated
PVC (Holes Down)
30-3/16' fd Hales
2.5' On Center
47 Drainfield Rock
TYPICAL 5WIDI
(NO SCALE)
CH SECTION
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 orStream !$-
No. oEAmi
MUNICIPALITY OF ANCHORAGE
DEVELOPMENT SERVICES DEPARTMENT
4700 BRAGAW STREET ANCHORAGE, AK 99519-6650
SOILS LOG - PERCOLATION TEST
Co wl
LEGAL DESCRIPTION: LOT 11, BLOCK I, TUXEDNI PARK WEST
PERFORMED FOR RDESIGN
DATE: 1/20/16 PROJECT No.:
PARCEL ID#: TECHNICIAN: A. HARALA
DEPTH TEST HOLE 1
(feet)
1
2
3
4
6
7
8
9
11
OB/OG
POORLY GRADED GRAVEL
GP
SILTY GRAVEL
WITH SAND
GW/GM/SM
BOH @ 14'
WAS GROUND WATER ENCOUNTERED? No
D YES F MONT DRING: ,S
DEPTH OF WATER AETERMOMTORWG. NonE IPEU=
DATE OF MOMI'ORWG:Z5��6
SITE PLAN
SEE S1TE PLAN
I
i
DATE
READING
GROSS TIME
(MINUTES)
NET TIME
(MINUTES)
DEPTH To
WATERCHES)
(IN
INET DROP
(INCHES)
TEST HOLE PRESOAKED PRIOR TO TESTING:
1/20
1
3:35
1.38"
2
4:05
30
4.88"
3.50"
3
4:06
1.50"
4
4736
30
5.00"
3.50"
5
4:37
1.25"
6
5:07
30
4.75"
3.50"
PERCOLATION RATE: 8.5 {NIIN/mM PERC. HOLE DIA.6If(INCHES)
TEST RUN BETWEEN: 4.0 FT. and 5.0 FT.
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: 1/26/16
MUNICIPALITY OF ANCHORAGE
DEVELOPMENT SERVICES DEPARTMENT
4700 BRAGAW STREET ANCHORAGE, AK 99519-6650
DEPTH
(feet)
1-
2
3-
4-
5-
6-
7-
8-
9-
11
1
1
I SOILS LOG - PERCOLATION TEST
LEGAL DESCRIPTION:
PERFORMED FOR:
DATE: 1
PARCEL ID#:
OB/OG
GP
w1 iv PROJECT No.:
TECHNICIAN: Mari Harala
TEST HOLE 2
GW/GM/SM
WELL GRADED GRAVEL
WITH SILT
COMMENTS: TEST HOLE PRE
SLOPE
WAS GROUND WATER ENCOUNTERED? Ivo
IF YES Q WHAT DEPTH7
DEPTH OF WATER AFTER MONPDDRING:. NONE
DATE OF MONITORING: I /22/16
DATE
READING
GROSS TIME
(MINUTES)
NET TIM
(MINUTES)
DEPTH To
WATER
(INCHES)
NET DROP
(INCHES)
TEST HOLE PRESOAKED PR� R TO TESTING:
1/20
1
2:24
1.75"
2
2:54
30
6.00"
4.25"
3
2:55
1.63"
4
3:25
30
5.88"
4.25"
5
3:26
1.50"
6
3:56
30
5.75"
4.25"
PERCOLATION RATE: 7 1 gvmuNCH) PERC. 40LE DIA._ 6 JINCHES)
TESTRUNBETWEEN: 3 FT. and 4 FT.
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: 1/22/16
g" FROZI:N ORGANIC MAT
R~OD~S~ eeov~ o.c,~c S~L~ SA~O
BROWN SANDY GRVEL
W/1RA~ OF ~aLT
GRAY FINE SAND W/TRAr~ ~LT
GRAY GRAVELLY SAND
IRAC~ or S~LT
ROC~ TO 3'
OCCASIONAL 80ULDER TO 12'
M~RE GRA¥~.LY Wil1'1 DEPTH
-- B.O.T.
WAS ~ROUND WATER S
E~COUNTEREO 1, ~s L
0
IF ~ AT ~AT 15' P
0~ ~ WA~
M i~ M~I~INO ? 14.5' DA~
RUN ~r 5.0 FT. AND 6.0 FT.
'11~$ $O~L LOG IS PROV1DE0 FOR TH';' SOLE PURPOSE O~ COMPLYING
AMC 15.65.180 & AMC 21.15.110. I~: ~ THIS INFORMA'I10N FOR ANY
OTHER PURPOSE: OTHER THAT OEITNNING SUBDIVISION APPROVAL I~ .~.
STRICTLY PROHIBITED. 04"A7 F~*~ .*?*~.~'e ~4'e:'xe"'r"'u -ye, ~..~..e. -/'~,.,,.-~
_, I
COMME2CTStSOIL$ PRESOAKED pRIOR TO STARTING ~ ,r~ o,~,,~ ~ f~tm~- ~1'~'~'' ·