HomeMy WebLinkAboutKENO HILLS #5 BLK 6 LT 6Keno Hills #5
Block 6
Lot 6
#020-171-30
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i
Municipality of Anchorage
Development Services Department • A. � V
j �.4./a n.y.
Building Safety Divisionrogram, 4700 S. Bragaw SL
On -Site Water and Wastewater P '• '••
'
P.O. Box 196850 Anchorage. AK 99519-6650 Page 1 of 3
www.d,andtorage.ak.us (907) 341790!
ON-SITE WASTEWATER DISPOSAL SYSTEM AND/OR WELL INSPECTION REPORT
Permit Number. Seuay02Y9 PID Number. OZo-/7/-3
Hama: , O
Tor, { l.aa.el You Wastewater System: ®New ❑Upgrade
Aaaaaa:
Iv9oa Ath 14^c( 0#-.,AArA 94s -r ABSORPTION FIELD
`ify(,! - i'/ r/ 09 ■ Dwo h.wt O sro . T..wr o ea D Lana a otnr.
LEGAL DESCRIPTION Eat Rs"` Tar Daq lanaprt papa:
Let:
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saraae�•
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/•S Ft• S3 4.39 = 9 2
Well:
New
❑ Upgrade
C� � Haro.rairs
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ow>M.w.ns..„,.n.,:
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24'6 ft. 20 FL
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ovno Sr «
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TANK
SEPARATION DISTANCES
0 septic ❑ rioknng ®S.T.EP.
7o Septic
Absorption
Oft Molding Mats
0 Other
From Tank
FreId
Station Tank Sewerue
nCAOn de 'mink lSfi cr.
w« 113 t
136 a
113 F _ ' u F
wH« r: S f-tt /� a conoru�nu:
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LIFT STATION
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BENCH MARK
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Ins pectionsperformed by: _F(aff-A Teel+ S&'C Dates: 1" 7/l9/o�L
I
2na_T/28/0y
Development Services Department'Approval
a e'newec and aeproved by, \Iy„ Q +a \ `l p� Q A ate: Ul 5lzSXy`1
Engineees Stamp
1 0
07 49TH l
r. HEODORE F. iMOORE �•
CE -3589
PERMIT NO: SW040249
PID NO: 020-171-30
92 LINEAL FEET OF
SOIL ABS. TRENCH
w. 5.0' EFF. GRAVEL
T.H.
#2 0
1500 -GALLON
STEP TANK
SWING TIES
FROM:
TO:
S.T. C.O. "C"
L.S. M.H. "D"
TR. M.T. "E"
TR. M.T. "F"
TR. M.T. "G"
TR. M.T. "H"
"H•• PAGE 2 OF 3
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LOT 6, BLOCK 6
KENO HILLS #5
COR. "A" COR. "B"
58' 26'
59.5' 35'
46' 86.5'
84' 118'
43.5' 72'
94' 120'
1
i
WELL ;
OF A4 "lk,
•, s
Yr 49TH ray ••' r��
.........................
THEODORc F. MOORE Y
�1 • .•
C'.-3589 r: �sto
LOT 6, BLOCK 6, KENO HILLS S/D #2
SEPTIC SYSTEM INSTALLATION
AS -BUILT INSPECTION REPORT
FLATTOP TECIMICALSERVICES SCALE:1 =30'
14530 ECI IO STREET DRAWN BY TFM
ANCHORAGE, ALASKA 99516 j AUGUST, 2004
I
PERMIT NO: SW040249
PID NO: 020-171-30
2" INS.
PAGE 3OF3
N
92 LINEAL FEET OF
SOIL ABS. TRENCH
W. 5.0' EFF. GRAVEL
m - �
•P
............».»....
TMEODOI:E F. MOORE T
^;';�•. CE -3589 �;� 41.
;;�.,,,,.,�y G
2' SOIL COVER
1.25" DIA.
4' SOIL
SCHED 40
INV.
COVER
PVC
5'
5.
4 -ID -30
2" INS.
INV.
96.4'
INV.
15001,ALLON y
ELEV.
95.0'
STEP TANK
94.8'
BOT. T.H. #3
ELEV. 88.3'
M.T. DRY
3/4/04
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m - �
•P
............».»....
TMEODOI:E F. MOORE T
^;';�•. CE -3589 �;� 41.
;;�.,,,,.,�y G
TOKLFlT ELECTRIC 5G1 0030 P.1
INSPECTION REPORT
MUNICIPALITY OF ANCHORAGE, BUILDING SAFETY DIVISION
5500 EAST TUDOR ROAD
VOICE 563.3164 INSPFC710m FAX (967)3{S•623S lms:n
NA/ tE TOKLAT ELECTRIr` Inlr
ADDRESS PERMIT •
/��jj ����«v.�l PHONES 61
LOT _ 5-848'
�OLOCK �SUDDIVISION17e--V O /// DATE
COMMENTS or DIRECTIONS:
TYPE OF INSPECTION: ELECTRIC/
NO NONCOMPLIANCE OBSERVED
NEX
COMMENTS.
��yf REINSPECTION: YES,
BELOW
I DO NOT CONCEAL UNTIL-REINSPECTEE
INSPECTOR
I
NO
l
1 • ,-'//1_ Q DATE:
W1iEN CORRECTIOI"RE MADE PLEASE CALL FOR REINSPECTION
DO NOT REMOVE THIS NOTICE
70T" F.OI
Municipality of Anchorage
Department of Health and Human Services
B25 "L' Street
P.O. Box 196650 Anchorage, Alaska 99519$650
Pock �� http:/Avww.d.anchorage.ak.us
Mayor
Permit Number. #SW 040249 Date of Issue; 74-04 Parcel Identification Number: 020-171-30
Date Started: 7-22-04 Date Completed: -7-22-04 Is well located at approved permit location? ® Yes ❑ No
Legal Description: Keno Hills # 5 Block 6 Lot 6
Property Owner Name & Address: Thomas A. Young
3600 Akula Dr.
Anchorage, Alaska 99516
Borehole Data:
Soil Type. Thickness & Water Strata
Stick up
organics &.0t
Bedrock
RECEIVED
AUG 0 a 2004,
Depth (ft)
From To
0 2
2 7--
7 246
A.;,-HORAGE
✓;W4 iri-NTALSERVICES DIVISION
Attention: The well driller shall provide a well log to the property owner within 30 days of completion and the property
. �.�..
. -.1.. .... A-!". - .1.1. -....!J. . -... .4. n_.• .".....1 O tt.. .. _.. f..
od of Drilling ® air rotary ❑ cable tool
ng type: steel
Thickness: .250 inches
eter. ¢ inches Depth: 20 feet
r Type:
eter: inches Depth: feet
g stickup above ground: 2 feet
[Recovery
c water level (from ground level): 21 feet
ing level -_L46 feet after
rs pumping L gpm
very Rate: L gpm
od of Testing; it IiR
Intake Opening Type:
en End ® Open Hole
reened Start feet Stopped feet
❑ Perforations Start feet Stopped feet
Grout Type: bentonite # 8 Volume: 1
Depth: Start 0 feet Stopped,? feet
Pump: Intake Depth feet
Pum size hp Brand Name
Well Disinfected Upon Completion? ® yes ❑ No
Method of Disinfection: chlorine tablets
Comments:
Well Driller. Alpine Drilling & Enterprises
PO Box 110496
Anchorage Alaska 99511
Attention: The well driller shall provide a well log to the property owner within 30 days of completion and the property
. �.�..
. -.1.. .... A-!". - .1.1. -....!J. . -... .4. n_.• .".....1 O tt.. .. _.. f..
MUNICIPALITY OF ANCHORAGE
Development Services Department
On -Site Water 8 Wastewater Program
4700 South Bragaw Street
P.O. Box 196650, Anchorage, AK 99519-6650
(907) 343-7904
ON-SITE WASTEWATER DISPOSAL SYSTEM / WATER SUPPLY PERMIT
Initial
Permit Number: SW040249
Legal Description: ;KENO HILLS #5 BLOCK 6 LOT 6
Design Engineer: 0019 Flattop Technical Services
Owner Name: THOMAS A. YOUNG
Owner Address: 17900 ASHLAND DRIVE
ANCHORAGE. AK 99516 -
'n 19 la( I &ou
g19A04 fits
Date Issued: Jul 08, 2004
Expiration Date: Jul 08, 2005
Parcel ID: 020-171-30
Site Address: 17900 ASHLAND DRIVE
Lot Size: 116305 SO. FT.
Total Bedrooms: 3 Permit Bedrooms: 3
This permit is for the construction of.
❑✓ Disposal Field 0 Septic Tank Holding Tank E] Privy Private Well Water Storage
All construction must be in accordance with:
1. The attached approved design.
2. All requirements specked 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 engineer must notify DSD at least 2 hours prior to each Inspection. Provide notification by calling
(907)343-79G4 (24 hours). ( Not required for a Water Supply Permit only).
4. From October 15 to April 15, a subsurface soil absorption system under construction during freezing weather
must be either: A. Open and closed on the same day.
B. Covered, sealed, and heated to prevent freezing.
Received By.
Date: 7• / U
Issued By. [Nif ~ V Date: a o •
Municipality of Anchorage
Development Services Department
Building Safety Division
On -Site Water and Wastewater Program
4700 South Bragaw St.
P.O. Box 196650 Anchorage, AK 99519-6650
www.ci.anchorage.ak.us
(907)343-7904
ON-SITE SEWER/WELL PERMIT APPLICATION
FOR A SINGLE FAMILY DWELLING
Property owner(s) t kam CLS L4"W.0 yOUfl�j Day phone _ 3qS-3409%
Mailing address (1) 3CpDO
rwri I - , c195;�
-MSTng address (2) l�iL�a ��G�N��.n-.C- �i. Zip Code 11
Legal description (Lot, Block & Sub'd.) LO + /0 i l k �� w o o S 1S
Legal description (Section, Township & Range)
Lot Size lll� 3D5 iAc;,;, q.Ft.
THIS APPLICATION IS FOR:
Number of Bedrooms j
Sewer Only
❑
Well Only
❑
Sewer and Well
Water Storage
❑
Sewer Upgrade
❑
THIS PROPERTY CONTAINS:
Hot Tub
❑
Jacuzzi
❑
Swimming Pool
❑
Water Softening Unit
❑
Therapy Pool
❑
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 properly clwner or ab(horized agent)
Permit Fees: � 3Sv Waiver Fees:
Date of Payment: re 3 O —O
Receipt Number: .-4 61 0 7
(Rev. 12100)
Date of Payment:
Receipt Number:
FLAT�OP'TEG`Hl'IAL
C
"SERIES
Jwgr n .4•.Y+1 Y �'ti rC:IJ,ti,....rw..- �tiN ;moi.,-wi.�.11' r
CRTLQ ENVIRONMENTAL ENGLVEERM • ENERGY CONSERVATION 6 A.NALYS IS
THEODORE F. MOORE, P.E. 14530 ECHO ST.
PH: (907) 345.1355 ANCHORAGE, ALASKA 99516
March 12, 2004
M.O.A. DSD
P.O. Box 19-6650
Anchorage, AK 99519
Dear Sirs:
The purpose of this letter is to provide the required design narrative in support of our application for
a permit to construct wastewater disposal facilities on Lot 6, Block 6, Keno Hills S/D, located at 17900
Ashland Drive. Soils logs, perc test results, a site plan, design drawings and specifications are enclosed
for your review.
The proposed system will be constructed in the vicinity of test hole # 3. As can be seen from the soil
logs, shallow bedrock was encountered in test holes #1 and #2, whereas a silty gravel with a perc rate of
less than I minute per inch was found between 1 and 13 feet below ground level in test hole #3. Despite
the rapid measured perc rate, the significant silt fraction encountered in most of the GM material should
provide adequate filtration of wastewater before it reaches groundwater or bedrock. To allow for the
possibility that some of the trench sidewall may encounter siltier soils 1 have conservatively based the
design on 0.8 gpd/sq. ft. Thus the proposed 4 -bedroom residence requires a total absorption area of (4 x
150)/0.8 = 750 square feet. The proposed design consisting of 2 parallel 38 -foot long trenches with 5.0
feet of effective gravel has a total absorption area of 760 square feet.
The topography of the lot in the area of proposed construction slopes down towards the west at 10%
The proposed project will have no significant impact on present or future water supply and
wastewater disposal systems serving adjacent properties, nor will it have any significant impact on
reserved space -surface and subsurface, or on drainage.
Please give me a call at 345-1355 if you have any questions on this submittal.
Sincerely,
Ted Moore, P.E.
LOT 12 i
,
,
,
R 100'
FROM WELL
LOT 13 '
INSTALL
1500 -GALLON
........ STEP TANK
LOT 7
SEPTIC AREA
30 -FOOT LONG REPL. TRENCH SIZED
FOR ADV. TR. SYST. @ 2.0 GPD=.FT
f
WELL> 100'
CONSTRUCT TWO 38 -FOOT -LONG SOIL \
ABS. TRENCHES w. b.0' EFF. GRAVEL
M.T.
T.H. Cn'P)
#2
1.25" DIA. SCHED 40 PVC T.H.
OR HDPE rte• #3
FD
C.O..
T
T.H
#1
4" DIA _ J
D-3034
86'.5.......' ....
��
ruvvutr �
LOT 6, BLOCK 6
KENO HILLS #5
LOT 3, BLOCKo
6
�PARADISE VALLEY
�•• AIc
c:
J f•.:..��:°*f37
-, ttEO^C!E F..10ORE: A
CL
•`� t NORWAY
CIRCLE
LOT 4, BLOCK 6
PARADISE VALLEY
8
..............................
8 ,
PROPOSED
WELL SITE
LOT 5
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LOT 6, BLOCK 6, KENO HILLS #5
PROPOSED WELL AND SEPTIC SYSTEM
SITE PLAN
FLATTOP TECIINICALSERVICES I11NCH=60FEET
14530 ECHO STREETI DRAWN BY TFM
ANCI IORAGE, ALASKA 99516 MARCH, 2004
NOTE: THIS IS NOT A SURVEYED PLAT.
ALL LOCATIONS SHOWN ARE APPROXIMATE.
TWO PARALLEL 38 -FOOT LONG
SOIL ABS. TRENCHES W. 5.0' —
EFF. GVL. BELOW DIST. PIPES
•. TN2ODCRE F MOORE
• CL • 35d9 � •µf�. •�
yr
1.25" DIA SCHED 40 PVC OR HDPE—
U
4"DIA. D-3034
15004ALLON FROM HOUSE
STEP TANK
1
0
TUBE
15
PLAN VIEW
SCALE: 1" =10'
MONITOR
SOIL COVER
ORIGINAL GROUND
3 rf / —2" INSULATION
f FILTER FABRIC
u
;:;,; ` 1.25" DIA PVC OR HDPE
W. 3/16" HOLES @2'
r: i'
6 5.3 5 si` 15
-2 1/2" SEWER GVL.
OF EXCAVATION
CROSS-SECTION "A -A"
SCALE: 1" = 5'
10
'IA'.
FLATTOP TECHNICAL SERVICES
14530 ECHO ST.
I-- ANCHORAGE, ALASKA 99516
TEST HOLE # 3 SOILS LOG - PERCOLATION TEST
LEGAL DESCRIPTION: _Lot 6, Block.6, Keno Hills S/D, Unit #5
DATE PERFORMED: __-,February5, 2004
PERFORMED FOR: _._ —Tom and Laurel Young
(feet)
1'
2-
3-
4-
5-
6 -
7-
8-
9
10-
11-
12 -"
U< _
14
I
15 -I
17
I
18
19 -I
20
PL
GM Silty Gravel
Many cobbles 8 boulders
Lenses of gray ML
SLOPE
Depth to Groundwater Date
No groundwater 2/52004
M�T_Dry=— 3/4/04_
CgTH
�.. . ...................0
r A
Tt¢ODORE F. MOORE
CE - 3589
`'i,-�",�....• ^,14..,0
SITE PLAN
C/ •
CENTER P7.
� q OF LOT
O
10%
PE
Date Reading CIO& Net Time Percometer i Net Drop
Tune (minutes) Reading (inches)
2/5 I_12" Pre-soak—
273F8
_ _
— - ,.2712--L----.
- -- -Add
water 8 start ! 12:30:10__
23 3/8
r—_
_ 12:35:10- _5_— 171/2(dry).__.57/8___
-f Add water 1 12:30:25 _-_ .— -233/8_-_
1
1712(dry):..-_57/8-_,
__#2.---12:35:25 ----5--
_;Addwater-_ 12:36 233/8
2:41_—_t_5-
4_
_1712 4-_5718
_
I
PERCOLATION RATE <1 (minutes/inch) PERC HOLE DIAMETER —6" --
TEST RUN BETWEEN 3.5 FT AND 4.0 FT
COMMENTS:_ Despite rapid measured pert rate, significant sift. fraction in_GM_should provide adequate filtration,_ Because perc test may___
_have encountered somewhat cleaner material than typical of stratum, recommend basing design, on perc rate of 6.15 minutes per-inch.—
PERFORMED BY FLATTOP TECHNICAL SERVICES. --')- CERTIFY THAT THIS TEST WAS PERFORMED IN
ACCORDANCE WITH ALLSTATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. DATE: 3 // Z /C"
Flattop 7echnicafSemices
14530 rEefw Street,.Anchorage, AX 99516
None (90) 345-1355
Lot 6, Block 6, Kcno Hills S/D #5
17900 Ashland Drive
Wastewater disposal system installation
Specifications
1.0 General:
1.1 The scope of the project consists of installing a 1500 -gallon STEP tank that pumps effluent into
two parallel 38 -foot long soil absorption trenches containing 5.0 feet of effective sewer gravel.
1.2 Construction shall be as depicted on the approved site plan and design drawings. Minor
deviations from these drawings may be allowed or required by the engineer conducting the inspections.
All construction procedures and material specifications shall conform to Municipal and State
requirements. All separation distances shall be in conformance with Municipal requirements, unless
specifically waived.
1.3 The contractor shall be responsible to obtain any necessary utility locates, and to work around
any buried utilities.
1.4 The contractor shall provide adequate cover material and rough grading over all system
components to ensure that proper drainage is achieved after settlement and that there are no residual
depressions. Insofar as possible the contractor shall minimize damage to trees and existing lawn areas.
1.5 Unless specifically agreed otherwise, the homeowner shall be responsible for finish grading
after the soil is compacted, as well as placement of topsoil and reseeding all areas disturbed by the
construction.
2.0 Septic Tank:
2.1 The new 1500 -gallon, 2 compartment STEP tank shall be Municipally approved and shall be set
level on undisturbed soil. Each compartment shall be equipped with a watertight manhole cover and a
4" cleanout. If the tank is buried less than 4 feet, it shall be insulated with 2 inches of approved burial
type, rigid insulation. The exact location of the STEP tank will have to be field -determined based on a
location where depth to bedrock allows excavation to a sufficient depth for gravity flow from the house
to the STEP tank.
2.2 All pipe connections to the tank shall be equipped with waterproof mechanical couplings. The
waste line from the residence to the septic tank shall have a minimum slope of 1/4"' per foot. A
cleanout shall be installed 1 - 4 feet from the building foundation, with additional cleanouts every 75
feet if applicable.
3.0 Lift station:
3.1 The lift station shall be installed in the second compartment of the STEP tank. The lift station
package shall be an "Orenco" system as supplied by Anchorage Tank.
3.2 The contractor shall be responsible to obtain the necessary Municipal electric permit and
inspection, and shall provide a copy of the electrical inspector's report to the engineer overseeing the
construction of the wastewater disposal system.
3.3 The lift station shall be equipped with a watertight, insulated manhole riser and cover extending
a minimum of 6" above final grade with positive surface drainage away from the manhole. The
contractor shall be responsible for determining the necessary length of the manhole riser.
3.4 The on, off, and alarm floats shall be set at the elevations specified by the lift station supplier,
and their proper operations shall be verified by the contractor.
3.5 The discharge line from the lift station to the soil absorption system shall be 1.25" dia. Sched 40
PVC or HDPE.
4.0 Soil absorption system:
4.1 The soil absorption system shall be constructed by excavating two 38 -foot long trenches to a
depth of 6 feet below ground level. The long axis of the excavation shall parallel an existing contour.
4.2 The bottom of the excavations shall be level. Any compacted or smeared surfaces shall be raked
to allow proper infiltration.
4.3 A total of 5.3 feet of approved sewer gravel shall be placed in the bottom of the excavation with
the perforated distribution pipes laid level such that the pipe inverts are no less than 5.0 feet above the
bottom of the sewer gravel. Sewer gravel shall be 0.5" - 2.5" screened gravel, with less than 3% passing
the #200 sieve. The distribution pipes shall be 1.25" dia. Sched. 40 PVC or 1IDPE, with 3/16" holes
drilled in the bottoms at 2.0 feet on center. All pipe connections in the distribution system shall be
glued, and the ends of all pipes capped.
4.4 Monitor tubes shall be of 4" diameter and installed in the locations shown on the design
drawings. The portion of the monitor tube extending through the sewer gravel shall be perforated.
4.5 Approved filter fabric shall be placed over the entire top surface of the sewer gravel. A
minimum of 2 feet of soil cover is to be placed over the filter fabric. If the soil cover thickness is less
than 3 feet, two inches of rigid, burial type insulation is to be placed over the entire top surface of the
gravel, in addition to the filter fabric.
4.6 The top surface of the cover material shall be raised a minimum of 6 inches higher than the
surrounding terrain to allow for subsequent settlement, and shall be graded to smooth contours. Fill
slopes shall be no steeper than 3:1.
4.7 Unless specifically agreed otherwise the homeowner shall be responsible for arranging to have
the site finish graded after the backfill material has stabilized, and for placement of adequate topsoil and
seed to promote rapid revegetation of all areas disturbed by the construction.
5.0 Inspections:
5.1 A minimum or 4 engineering inspections will be required during the course of the project: (1)
initial stakeout with the contractor to establish the location of the system and to discuss the plans,
specifications and construction procedures, (2) after the native material has been excavated to expose the
infiltrative surface to ensure that it is level and at the right elevation, and conforms with the soil test
information, (3) after the sewer gravel is in place and the distribution pipes have been laid and connected
up to the septic tank, but prior to placement of insulation or filter fabric, and (4) after rough backfill and
grading is complete. The STEP tank requires one inspection after it is set level and the piping
connected, but prior to backfill. This inspection may be incorporated with any of the above inspections.
5.2 The installer shall coordinate the timing of the inspections with the engineer sufficiently far in
advance to ensure the availability of the engineer.