HomeMy WebLinkAboutTUXEDNI PARK WEST BLK 1 LT 2Tuxedni* Park
West
Block 1
Lot 2
#041-022-40
Municipality of Anchorage `-^ ,
Development Services Department y;
Building Safety Division
On -Site Water and Wastewater Program, 4700 BragawSt.
P.O. Box 196650 Anchorage, AK 99519-6650 Page of
www.ci.anchorage.ak.us (907)343.7904
ON-SITE WASTEWATER DISPOSAL SYSTEM AND/OR WELL INSPECTION REPORT
Permit Number: SW050115 PID Number: 041.022.40
Nems'.
Lees Custom Design Wastewater System: ® New ❑ Upgrade
Avasu:
NHN Altelled)[iY9. Anchorage. AK 99507
ABSORPTION FIELD
Phar NMnw Graadm s
624-W5 4
0 Deep T(&Kh 0 Shs lP TWch 0 Old 0 Mane 0 ovw
LEGAL DESCRIPTION
SRI .V
T° D•Pmhurt ar ""iy O
BMXM' LPI'. $IOdw1aM:
1.2 GPDIFT
DWh b p" axwn tom apaw Pada.
4.0 FI.
Gravel degh wwah pqs.
2 TUXEDNI PARK WEST
2.35.2.47 Fl.
1.53.1.65
TPwrnhq Partite . Ssam'.
Fe added aoova "nett pads
FI
GravN Lrgln
varies 1.1.1.68
78
FI.
Fl.
Well: ® New ❑ Upgrade
DfvNYn°"`
Nwtwdrws UWanuwwaenrwF
CraMralan (Pmaa, A, a. c): TPW DWh. caged m:
PRIVATE
5 FI.
Tdal aEsaq,dn ar«
2 1 10 FI
Pa» MaerW.
1a1 FI. 181 Fl
500+ FI• I
D3034 & F810
to « Dale 0,.wd. $IaiP Wali Lava
SULLIVAN 6/2105 107
a Slw
TWEED
Dale aWrlad'
FL
619105
Ywa. Pump saa c..nvH..yvAnonGand
30 GFM unknown 2
yOS•D1t� TANK
FI. FL
SEPARATION DISTANCES
® Septic ❑ Holding ❑ S.T.E.P. ❑ Other.
To
Septic
Absorption
Lift
Holding
PubiiuPlive)
•tea
apaalY
From
Tank
Field
Station
Tank
Sewer Line
PREMIER PLASTICS
1300 Ga
100'+
1001+
NA
NA
25'+
HDPE
N, wa canpa«eras.
2
awaaW".
100'+
1004
NA
NA
LIFT STATION
La Lns
5'+
3'
NA
NA
Va�W"-
Gal
Fdu w
5'+
10'+
NA
NA
'P.P al tura
'Poop Pe'rvaa
Hon wa'w arrm".
N
M
N
c~Dran
NA
a50'+
NA
NA
Plane Maka&MPda
ErtlrKal vwpxy 'pedanla0 py
Ftwr s
Tank & Field insulated
BENCH MARK
"None known
Loci1ni 0 Deiap °"
Garage Slab
100 FL
Inspections performed by: KND Engineering Inc.ngineer's
nc• Dates: 1" & 2ne 6/9105
Stamp
3"' 5116106
OF 44 %%1
Development Services Department Approval
• �I
Conditional Approval Date:
„r, •; ,�9+I
so
Kennem M. o ,
Reviewed and approved by: c Date: 0 zv Or9F�••S•17
O a�����r
......
(sea owa)
:, PROFESSION`'
AS -BUILT SYSTEM DETAILS/SITE PLAN
TUXEDNI PARK WEST SUBDIVISION, BLOCK 1, LOT 2
SPLITTER
CO 1300 GAL. HDPE
.419 SEPTIC TANK
RESERVE
(2) 35'x;
A—C=21.5'
B—C=64'
A—D=25'
B—D=63'
A—E=36'
B—E=58'
A—F=54'
B—F=26.5'
A—G=66'
B—G=45'
A—H=51'
B—H=66'
oor
doe' MT,
j100, THA -3
ifLLV
TRENCHES
501
!r
.0
TO
DRAINnELD
TO SPLITTER
OF AZ4
%T�A X91
: 9� *�l
L
EIIt11:1'li 7 /
I,CE 7116
" ' oll
0,
\lE991
9
8600.c; •
\THOS -1
FINAL GRADE
SEWER ROCK
TRENCH 1
w—
FINAL GRADE
w;rrs�
SEWER ROCK
TRENCH 2
3e' —
PREPARED FOR:
LEE'S CUSTOM DESIGN
NHN ATEILER DRIVE
ANCHORAGE, AK 99507
907-694-8565
FIELD BOOKS COMPUTED,
BOMNomr.— DRA' kind
STMING CLd ED, KMD
AST` SEWARD DATE 2/25/0
Dw . n1E_ tie¢ 2042
nQ FILE. 05012 AS8.d.g 'TDB No.: 05-012
Permit SW050115
PID#041-022-40
�i
T D.5'
1.53'
1
97.3
6.0 Nw
T0.5'
1.65'
92.0
1
NTS
ABBREVIATIONS
BOH - BOTTOM OF TESTHOLE
CO — CLEANOUT
MT - MONITORING TUBE
NTS - NOT TO SCALE
Z LLlJ ENGINEERING, INC.
20441 PTARMIGAN BLVD.
EAGLE RIVER AK 99577-8736
(907)696-6111/FAX (907)698-8111
www.HNDEn'Ineerin`.com/knden`®Bk.net
Certitieb 33ril(ing log
by
t)0000.dbo
SULLIVAN WATER WELLS
PA. BOX 670274. Cftl1GIAK, ALASKA OMU • .
OWNE R OF LMiD • C r t� ..i JL rf i l
LEGAL
DAM-
P6EMTNULIBER 0 SO /l5 Daleoflm-ft
TAXfDENitMMMHUMMt 1241 �0--
IS well baled at apoKwW Qe I b adore ' 6.0ti's :J No
Maimd of Drl klW H fr%Atay Li cable loot
Depth of wr& /( f
CaskVTYM176at- V"nidorass ro�`�
taaoreta G " irrhes•deplh /Jr-, teat
U}nerType_-
suckw nbwe Grouxlt � feet
Stec Water Levret /0-4
feel
PecowtaLmm--R—C� Wn
Melina of TesbW /4 r� /
Wd ixntoe *V 0
OperTypm 1pen aid D open hob
:tscreO+et. start feet Sipped feet
U PerbrAcm Stat fee! Stopped et
fe
-a .l,r,�_ C g1bl a o x$ p
t�
�F TAIM A/06
Depttz iom %eL too 02 0 feet
Wei DWm*cled Upon Co mpledcn? Mrs D No
Me6ndofUmkdectiori GKan•t..Jr -l�O"'
oJs•cc3fRorJ
.r.ci-e 6R4,+E�L. .
cyt 7:16H7 S it T; 61<4,/rl-
ctar 6�.4�s�.
eu
r • :•: �: •< • • • 7—.=• • • • i. S•
ASBUILT
I HEREBY CERTIFY THAT I HAVE SURVEYED THE
FOLLOWING DESCRIBED PROPERTY-
T�/�',e�i/'
AND THAT NO ENCROACHMENTS EXISGO
T EXC!`PT AS
INDICATED, IT IS THE RESPONSt31LITY OF THE
OWNER TO DETERMINE THE EXISTENCE OF ANY
EASEMENTSOR
WHICH DO NOTAVENANTSAPPEAR ON,
THE RECORDEDIONS SUBDI-
VISION PLAT. UNDER NO CIRCUMSTANCES SHOULD
EON BE USED FOR CONSTRUCTION
OF ENCE LDATA INES, OR FOR ESTA13LISH NG BOUND-
ARY LINES.
SCALE] ,
OF A(� �,
DATE
�o/s�tr
i'��
P �`r',4's
�'
GRID
zoyz
0040 ........
' �
FB:
,/' '.Due's Mark S.w
/O� yelB
� ..'• LS, 6918 ..
DRAWN��
11415 sTAwc We obn Par m
C:66T 04 &ViM AID- t4tar
I
BE Ad jM14)R-. lit'
AS-gultr sv9VeyjpaAFr1A/plf
I
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ti
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h
a
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w
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"
i
tiic
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ASBUILT
SEWARD &ASSOCIATES LAND SURVEYING 69
I HEREBY CERTIFY -THAT I HAVE SURVEYED THE SCALE: ,
FOLLOWING DESCRIBED PROPERTY
TiiYEO.Y/.oy�C�6i/�TT/Uly' GolZ�'F:/ DATE= r P�� OF At�s,`
AND THAT NO ENCROACHMENTS EkIST EXCf`PT AS •, ,� +
INDICATED. IT IS THE RESPONSIBILITY OF THE /o/zs�� �� • • '�
OWNER TO DETERMINE THE EXISTENCE OF ANY GRID ••rH
EASEMENTS, COVENANTS, OR RESTRICTIONS zoyr '� •..
WHICH DO NOT APPEAR ON THE RECORDED SUBDI- I'
VISION PLAT. UNDER NO CIRCUMSTANCES SHOULD FB: / %Doone M•rk S•wud : k j
ANY DATA HEREON BE USED FOR CONSTRUCTION io6 y6B US 76918 `
OF FENCE LINES, OR FOR ESTABLISHING BOUND-
ARY LINES. DRAW
Municipality of Anchorage
Development Services Department
Building Safety Division
On -Site Water and Wastewater Program
4700 Bragaw Street
P.O. Box 196650 Anchorage, AK 99519-6650
www.ci.anchoragc.ak.us
(907)343-7904
Waiver Review Worksheet
WR#:060022 PID#:041-022-40 HA/Permit# SW050115
Date Received: May 24, 2006
Legal Description: Tuxedni Park West, Block 1 Lot 2
Engineer.
Kenneth M. Duffus, P.E.
KND Engineering, Inc
20441 Ptarmigan Blvd.
Eagle River, AK 99577
Applicant: Lee's Custom Design
Waiver Requested: Lot Line Waiver
Criteria: Geology Points:
A. Water Table
B. Soil Sorption
C. Permeability
D. Water Table Gradient
E. Horizontal Separation
Total:
Waiver is Granted: X Waiver is not Granted.
List Conditions or Reasons for above:
Dale: 05/24/06 By:DebDeb Wockenfuss
Name of Reviewer
.........................................................................
Rec#: 080411 Amount: $J75 Date Paid: 5/24/2006
Municipality Of .Anchorage
1:0. Ik.x 1!N;f.S(1 • Mchomgc, Alaska J!ki19 r�(.i0 • Tchphnnc (007) 3%:l fC1111 •Paz ('.N17) 3i.4t{_'IN) -i �4
/ 47a) Bmgaw S(mc( • .lnchomge, MwAa M-507 s
aIMmuni.org
Mayor Mark i3rgich Building Safct), Mision
May 24, 2006
Kenneth M. Duffus, P.E.
"D Engineering, Inc
20441 Ptarmigan Blvd.
Eagle River, AK 99577
Subject: Waiver Request for Tuxedni Park Nest, Block 1 Lot 2
Waiver Request WRM 060022
Parcel ID # 041-02240
SW050115
Dear Kenneth AT. Duffus, P.E.:
Your request for a waiver of the required 10 feet horizontal separation from the
absorption field to the property line has been approved. The approved separation
distance is 3.0 feet.
This waiver approval applies to the existing absorption field to property line separation
only. Any future upgrade to the on-site wastewater disposal system will require all
separation distances be met or another approval from this department.
If there are any further concerns or questions regarding this waiver, please call our office
at 343-7904.
Sincerely,
9 �
Deb Wockenfuws
Civil Engineer
On -Site Water & Wastewater Program
Community, Security, Prosperity
MUNICIPALITY OF ANCHORAGE 1�p
Development Services Department ���
On -Site Water d Wastewater Program
4700 South Bragaw Street
P.O. Box 196650, Anchorage, AK 99519-6650
(907) 343-7904
ON-SITE WASTEWATER DISPOSAL SYSTEM I WATER SUPPLY PERMIT
Initial
Date Issued: May 10, 2005
Expiration Date: May 10, 2006
Permit Number: SW050115 Parcel ID: 041-022-40
Legal Description: TUXEDNI PARK WEST SUBDIVISION BLOCK 1 LOT 2
Design Engineer: 0070 KND Engineering Site Address: NHN ATEILIER DRIVE
Owner Name: LEE'S CUSTOM DESIGN Lot Size: 97992 SO. FT.
Owner Address: NHN ATEILIER DRIVE Total Bedrooms: 4 Permit Bedrooms: 4
ANCHORAGE. AK 99507 -
This permit Is for the construction of:
Q Disposal Field ❑✓ Septic Tank ❑ Holding Tank ❑ Privy Q Private Well ❑ 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 engineer must notify DSD at least 2 hours prior to each inspection. Provide notification by calling
(907) 343-7904 ( 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.
4/1 Joy _ 16Rt^4 tDefe'2^ 1vzo ryJ: ivsi91/Ari0W or- 7)4r .JEcc Lura -/cc c% -m! 40
7-tIE p-opesE.D L-ocAr,&v o/` 5'LP71c ryyrr^. 77./E s IrS7,r - 063ifnr U74LL
13E "A3Ji►IJf J FV/3rHiq 71trtrH oN rN[ ',or. NEN TES TWO"$ 9+461-.fE
Received By.
Issued
baJF OWD 6'70,wpw47rrt ~Q;login'- /}dakfI044L- rELTNo/fg w;t- 6f
S✓8m;r7[D Wirth As-&IiLr /alTCc7NJ Rf000fa7.
Date: SX/O °J`
Date: o
Municipality of Anchorage
Development Services Department
Building Safety Division
On -Site Water and Wastewater Program K
4700 South Bragaw St. `+
P.O. Box 196650 Anchorage, AK 99519-6650
www.ci.anchorage.ak.us
(907) 343-7904
ON-SITE SEWERIWELL PERMIT APPLICATION
FOR A SINGLE FAMILY DWELLING
Parcel LD 041-022-40 Permit Number SW
Property owner(s) Lee's Custom Design
Dayphone
694-6364
Mailing address (1) 11517 Old Glenn HM_
Mailing address (2) /U�1✓ i 1-G!L I t?z
l vF Zip Code
2602 -
92602 -
Legal description (Lot, Block & Sub'da Tuxedni
Legal
Park West 131, L2
Legal description (Section, Township & Range)
Lot Size 97,992 Acre E.:F .
Number of Bedrooms _4
THIS APPLICATION IS FOR:
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.
of property owner or authorized agent)
Permit Fees:
J
Date of Payment:
Receipt Number:
(Rev. 12/00) Uji
Waiver Fees:
Date of Payment:
Receipt Number:
KND ENGINEERING, INC.
20441 PTARMIGAN BLVD.
EAGLE RIVER, AK 99577-8736
696-6111/FAX (907) 696-8111
May 17, 2006
Municipality of Anchorage
Development Services Department
On -Site Water & Wastewater Program
P.O. Box 196650
Anchorage, AK 99519-6650
RE: TUXEDNI PARK WEST, BLOCK 1, LOT 2 — LOT LINE WAIVER
Gentlemen,
On May 10, 2005, a permit was issued for a new well and septic on the referenced
property. Subsequently the owner drilled the well within 100' of the proposed
wastewater system. We contacted your department and received authorization to
perform an additional testhole and proceed with the installation. With the exception of
a gravity -fed absorption field and increasing the absorption field length with 1.5' of
effective sewer rock depth —the system was installed per the permitted design.
We have just received the well log and as -built survey from the owner. The as -built
survey shows that the system was constructed within 10 feet of the property line. The
system is still located within the testhole radius and we do not expect there to be any
adverse effect on adjacent lots by the location of this system. We are therefore
requesting a waiver to 3.0 feet to lot line at this time.
If you have any questions, please contact me at 696-6111 /FAX 696-8111.
Respectfully submitted,
KND Engineering, Inc.
Kenneth f
Attachments: Inspection Report & Well/Septic As -Built
Soils Log
As -Built Survey
Well Log
P47 -c: .5'119/0(
Fir• : / 7S
REcAr: 1 08o4i/
L.0T LIA�r 1~n Fre
KdV D ENGINEERING, INC.
20441 PTARMIGAN BLVD.
EAGLE RIVER, AK 99577-8736
(907)696-6111/FAX (907)696-8111
May 6, 2005
Municipality of Anchorage
Development Services Department
On -Site Water & Wastewater Program
P.O. Box 196650
Anchorage, AK 99519-6650
Subject: New sewer/well permit — Tuxedni Park West, Block 1, Lot 2
Gentlemen:
The owner has requested we proceed forward to obtain a septic & well permit on the
subject lot. On April 5, 2005 two testholes were performed for the proposed system.
The results of these tests are attached. The general slope of this lot is from east to west
at a grade of approximately 5-1070.
We have designed our system utilizing the existing testholes that were excavated for
the proposed 4 -bedroom house. The lot will be served by an individual well, located on
the central portion of the lot. We propose to install two 5' wide shallow trenches.
Water was encountered during the excavation at 10' in TH05-2, and during monitoring
at 8' (TH05-2) and 11' (TH05-1).
There are no public or private wells within 200' of our proposed system location except
as noted. There is no surface water within 100' of theproposed system and there are no
known curtain drains within 50'. We do not expect there to be any adverse effect on
adjacent lots by the development of this system.
If you have any questions, please contact me at 696-6111 /FAX 696-8111.
Respectfully submitted,
KH D Engineering, Inc.
Attachments: On -Site Well and Sewer Application
Wastewater Absorption System Details/Site Plan
Soils Logs/ Percolation Tests
Owner/Excavator Specs
MONITORING
TANK TO FIELD
JANIF• • • ' : • •%
HOLES
Lj •0 2.3' SPACING (TYP)
06 ... iiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
� •i
Tj
SOLID FROM HOUSE
`r i
7116
1 �4? " X
bEEsstO0o
PLAN VIEW
►RED FOR:
LEE'S CUSTOM DESIGNS
11517 Old Glenn Highway
Eagle River, AK 99577
Tel: (907) 694-8565
NG f.
0501ZDWC
1EM ENGINEERING, INC.
20441 PTARMIGAN BLVD.
EAGLE RIVER, AK 99577-8736
(907)868-3791/FAX (907)868-3793
WASTEWATER ABSORPTION SYSTEM
DETAILS
TUXEDNI PARK W., Block 1 Lot 2
m
m
uJ
O
p p_j O
=
>
o
v -j < FINISHED GRADE
INSULATION
o
FILTER FABRIC
Varies
L
in 2'
��^
1500 GAL
—_
0_5'
S.T.E.P.
MIN. SEWER ROCK
C14
v0
+j
Lift Station I (2) 35' TRENCHES
r
—
WATER
MONITORED
PRESSURIZED DISTRIBUTION SYSTEM HOLE SPACING
DESIGN
® 8' BELO
1. RESIDUAL HEAD - 5'
GRADE
2. HOLE SIZE - 3/16' - 1.00 GAL PER HOLE 0 30 PSI
3. 30 GALS (PUMP DELIVERY)/1.00 GALS./HOLE - 30 HOLES
4. 70 LF LATERAL/30 HOLES - 2.3' SPACING PER HOLE
BOH 12'
5. ALL HOLES SHALL HAVE CAPS INSTALLED PER MANUFACTURER'S SPEonCATION.
MONITORING
TANK TO FIELD
JANIF• • • ' : • •%
HOLES
Lj •0 2.3' SPACING (TYP)
06 ... iiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
� •i
Tj
SOLID FROM HOUSE
`r i
7116
1 �4? " X
bEEsstO0o
PLAN VIEW
►RED FOR:
LEE'S CUSTOM DESIGNS
11517 Old Glenn Highway
Eagle River, AK 99577
Tel: (907) 694-8565
NG f.
0501ZDWC
1EM ENGINEERING, INC.
20441 PTARMIGAN BLVD.
EAGLE RIVER, AK 99577-8736
(907)868-3791/FAX (907)868-3793
KINI D ENGINEERING, INC.
20441 PTARMIGAN BLVD.
EAGLE RIVER, AK 99577-8736
SOILS PERCOLATION TEST
Performed for: Lee's Custom Designs Date Performed: 06/06/05
Project: Tuxedni Park West, Block 1, Lot 2 TEST HOLE u 2005-03
Depth
11-
12-
13-
14-
15-
16-
ORG /OL SEE ATTACHED SITE PLAN
FOR HOLE LOCATION
SP
B.O.II.
Insitu material suitable
as filter.
17- NOTE:
Pere Test: Water added several
18- times with rapid absorption—
same as other testholes
19-
700
{Vas Ground water encountered? YES What depth? 8.8'
Depth to water after monitoring? 8.5' Date? 06/13/05
Reading
Date
Gross
Time
Net
Time
Depth to
Water
Net
Drop
1
6/6/05
1:00
6-
-
2
1:02
2 min
dry
6-
3
1:03
6"
-
4
1:05
2 min
dry
6 -
5
SEE
NOTE
6
7
8
9
10
11
12
'
Water
Added
Percolation Rate <I(min/in) Perc Hole Diameter 6"
Test Run Between 4 feet and 5 feet
1, Kenneth hi. Duffus, certify that this test was performed in accordance with all State and Municipal guidelines in
effect on this date.
OF
RCd V �yaw
D ENGINEERING
20141 PTARMIGAN BLVD. '••
EAGLE RIVER, AK 99577-8736 ♦ ,:
CE
SOILS PERCOLATION TEST
Performed for: Lee's Custom Designs Date Performed: 04/05/05
Project: Tuxedni Park West, Block 1, Lot 2 TEST HOLE # 2005-01
1
1
Depth
13-
14-
15-
16-
17-
18-
19-
20-
ORG- red/brown overburden
W/ organics
SWAP - gray sand
moisture increasing w/ depth
B.O.H.
Insitu material suitable
as filter.
SEE ATTACHED SITE PLAN
FOR HOLE LOCATION
Was Groundwater encountered? NO Whatdepth? NA
Depth to water after monitoring? 11' Date? 05/05/05
Reading
Date
Gross
Time
Net
Time
Depth to
Water
Net
Drop
1
5/12/05
1:00
-
6"
-
2
1:02
2 min
dry
6"
3
1:03
6"
-
4
1:05
2 min
dry
6-
5
1:06
-
6"
-
6
1:08
2 min
dry
6"
7
1:09
6"
-
8
1:11
2 min
dry
6-
9
1:12
-
6"
-
10
1:14
2 min
dry
6"
11
1:15
6"
-
12
1:17
2 mind
6"
'
Water
Added
Percolation Rate < 1 (min/in) Perc Hole Diameter 6"
Test Run Between 4 feet and r feet
I, Kenneth M. Duffus, certify that this test was performed in accordance with all State and Municipal guidelines in
effect on this date.
K N D ENGINEERING
20441 PTARMIGAN BLVD.
EAGLE RIVER, AK 99577-8736
SOILS PERCOLATION TEST
Performed for: Lee's Custom Designs Date Performed: 04/05/05
Project: Tuxedni Park West, Block 1, Lot 2 TEST HOLE 9 2005-02
Depth
13-
14-
15-
16-
17-
18-
19-
20-
ORG- red/brown overburden
w/ organics
SW/sp- w/ 4" gp lense at 4'
gray sand
moisture increasing w/ depth
B.O.H.
Insitu material suitable
as filter.
SEE ATTACHED SITE PLAN:]
FOR HOLE LOCATION
Was Ground water encountered? YES What depth? 10'
Depth to water after monitoring? 8' Date? 05/05/05
Reading
Date
Gross
Time
Net
Time
Depth to
Water
Net
Drop
1
5/12/05
1:00
-
6"
2
1:02
2 min
dry
6"
3
1:03
6"
-
4
1:05
2 min
dry
6"
5
1:06
6"
-
6
1:08
2 min
dry
6-
7
1:09
-
6"
-
8
1:11
2 min
dry
6-
9
1:12
-
6"
-
10
1:14
2 min
d
6"
11
1:15
6"
-
12
1:17
2 min
dry
6"
'
Water
Added
Percolation Rate <1(min/in) Pere Hole Diameter
Test Run Between 4 feet and _ 5 feet
I, Kenneth M. Duffus, certify that this test was performed in accordance with all State and Municipal guidelines in
effect on this date.
J.LOd V D ENGINEERING, INC.
20441 PTARMIGAN BLVD.
EAGLE RIVER, AK 99577-8736
696-61111 FAX (907) 696-8111
ON-SITE WASTEWATER DISPOSAL SYSTEM
CONSTRUCTION PRACTICES AND MATERIAL SPECIFICATIONS
LEGAL DESCRIPTION: Tuxedni Park West, Bl, L2
GENERAL:
1. The scope of this project includes the installation of a septic tank and/or drainfield to serve a
single family residence on the referenced property as delineated on the attached Municipality of
Anchorage (MOA) permit and site plan.
2. Construction shall be in accordance with the approved site plan and design drawings, MOA
permit with any special provisions or conditions, and all applicable State and Municipal
Wastewater Disposal Regulations.
3. KND Engineering Inc (KND) assumes no responsibility of the accuraty of the as -built survey
provided by the owner or owner's representative.
4. The owner or contractor is responsible to notify the engineec of any discrepancies noted on the
design plans or drawingsprior to commencing work. These discrepancies could be, but not
limited to, possible encroachments, surface water, varying soils, unplatted easements, types or
use of dwellings on or adjacent to property, nearby public wells, etc.
5. The contractor shall be responsible for locating any necessary underground utilities, easements,
property lines and surface water. The owner and/or contractor shall ensure, if deemed
appropriate, that a registered land surveyor prior to construction flags all setbacks.
6. The contractor shall be responsible for verifying all pertinent separation distances and
component layout.
7. Unless specifically agreed otherwise, the property owner shall be responsible for final grading
areas subsequently depressed from soil settling. On all leachfield mound systems, the property
owner shall be responsible for ensuring a satisfactory vegetation growth over the mounded
area.
8. The MOA Development Services Department On -Site Water & Wastewater Program must
certify contractors installing wastewater disposal systems. Owners installing their own systems
must also receive prior approval from said MOA Department.
SEPTIC TANK / HOLDING TANK / LIFT STATION INSTALLATION:
1. A septic tank is to be constructed by a certified septic tank manufacturer. Construction shall
include two 4" cleanouts for pumping access.
2. The septic tank shall be sufficiently bedded with proper material and compacting to prevent
damaging, settling or shifting of the tank.
3. All standpipes on the septic tank shall extend a minimum of 12 inches above the final grade.
4. Septic tanks installed with less than 4 foot of cover shall be insulated. The contractor will
ensure that the fill over the tank does not exceed the burial depth rating.
5. A foundation cleanout shall be installed one to four feet from the building foundation. In the
line between the tank and the leachfield there shall be two adjacent cleanouts (unless an effluent
pumping system exists within the septic tank). These cleanouts shall be located on undisturbed
soil not more than 10 feet from the tank. The second cleanout, in line, shall be to clean toward
the septic tank.
6. Final grading over the septic tank shall be such that a positive slope exists away from the septic
tank.
n,..o i ,.F'A
Reference: Tuxedni Park West B1, L2
Date: 05/05/05
Page: 2 of 3
7. All H.D.P.E. tanks shall have a vertical length of 4 -inch perforated drainpipe besides the tank
extending to the bottom of the tank to above grade to monitor ground water.
8. All tanks shall be anchored when there is not enough adequate soil cover to resist buoyancy
forces in high -groundwater areas.
9. All holding tanks and lift stations shall have an audible and visual alarm inside the residence.
10. All lift stations shall be wired in compliance with the Uniform Electrical Code and all MOA
guidelines.
11. The contractor shall remove the old tank, or abandon it in compliance with the Uniform
Plumbing Code. The contractor is solely responsible for the abandonment procedure.
ABSORPTION TRENCH/DRAINFIELD INSTALLATION:
1. Excavate the proposed trench to the dimensions shown on the design. The bottom of the
excavation shall be within 2 inches of level. If the sidewalls of the excavaction become smeared,
they must be raked or scratched (roughed -up) before gravel (sewer rock) placement.
2. Once the sewer rock is installed, the distribution pipe is installed level with the perforations
facing downward. Gravel is then to be placed over the distribution pipe to provide a minimum
of 2 inches of cover over the pipe.
3. A silt barrier must be installed between the final gravel layer and the native soil backfill. Ensure
the silt barrier covers the entire gravel surface before placing backfill.
4. Monitoring tubes shall be four- (4) inch diameter, installed approximately in the locations
shown on the design, and extend a minimum of 12 inches above final grade. The portion of the
monitoring tube extending through the gravel shall be perforated from the bottom of the trench
to the invert of the distribution pipe. This is equivalent to the effective depth of the gravel as
noted on the design.
S. Backfill over the final gravel layer must not be less than twenty-four inches. Insulation must be
installed when the backfill depth is less than thirty-six (36) inches. The finish grade over the
trench must be mounded to prevent the formation of a depression after settling.
6. All advanced technology waste water disposal systems (Advantex, Biocycle, Intermittent
Dosing Sand Filter, etc...) shall be constructed, installed, maintained and monitored per
manufacturer's specifications and MOA requirements.
MINIMUM MATERIAL SPECIFICATIONS:
1. A MOA approved septic tank manufacturer must construct any septic tank proposed for
installation.
2. The following pipe materials are MOA approved for use in septic system installations:
Type of Pipes Perforate EMU
Cast Iron Yes Yes
ASTM D3034 (PVC) Yes Yes
ASTM F810 (HDPE) Yes No
ASTM D2662 (ABS) Yes Yes
3. Insulation shall be at least 2" thick extruded direct burial polystyrene (Dow Chemical Company
Styrofoam HI or equal).
4. Septic tank inlets and outlets shall be fitted with watertight couplings (Caulder, Fernco, or
equal).
5. A permeable nontoxic silt barrier (Typar 3401, Mirafi 140N, or equal) must be installed between
the final leachfield gravel layer and the native soil backfill.
6. All leachfield gravel (sewer rock) shall be 0.5"-2.5" screened gravel with less than 3% passing
the #200 sieve. If deemed necessary, a sieve analysis should be performed.
7. When sand is being used as a filter material, its gradation specification must conform to current
MOA or DEC requirements.
Reference: Tuxedni Park West BI, t2
Date: 05/05/05
Page: 3 of 3
INSPECTIONS:
Typically there will be three (3) inspections required during the installation of the wastewater
disposal system. These inspections will occur as follows:
1. The first inspection must be conducted after the excavation of ditches, pits, trenches, or beds
and before the installation of any gravel. A septic tank may be set in place, but may not be
backfilled before this inspection.
2. The second inspection must be conducted after the placement of the sewer rock, distribution
lines, standpipes, and cleanouts, but before the placement of the silt barrier, insulation, or any
other backfill.
3. The final inspection is to occur upon final grading of the property.
Often there will be more than these 3 inspections required, especially with the installation of multiple
trenches, sand filters, pressurized distribution systems, etc. The inspecting engineer is to be contacted
at least 24 hours prior to the start of construction. If necessary, a pre -construction meeting will take
place on-site. The inspecting engineer will not coordinate, direct or control in any way the contractor's
activities.
The owner shall contract with the contractor to perform the work outlined in these specifications and
attached plans and in accordance with the attached MOA permit. All materials, components, and
construction practices shall comply with the MOA's and the State of Alaska's latest ordinances,
regulations, or policies regarding wells and septic systems. The failure of the inspecting engineer to
notice a material or construction non-compliance does not relieve the contractor of his/her
responsibility to correct such deficiency. There will be no contractual arrangement existing between
the contractor and KND Engineering Inc. KND shall be the owner's representative and will inspect the
work as stated above to document the contractor's activities. Final acceptance of the contractor's work
rests with the owner and the MOA.
KND shall have no liability to the owner or to others for acts or omissions of the contractor or any other
persons performing work on this project or the failure of the contractor to carry out the work in
accordance with these construction documents. KND's inspecting engineer will not be responsible for
the construction means, methods, and techniques, sequence, procedures or the safety precautions
incident to this project.
BY PROCEEDING FORWARD WITH THE INSTALLATION OF THE WATER AND/OR
WASTEWATER SYSTEM (S), THE PROPERTY OWNER, CONTRACTOR, AND WELL DRILLER
ACKNOWLEDGES HAVING READ AND ACCEPTED THESE SPECIFICATIONS.