HomeMy WebLinkAboutFROSTAD LT 31411bSotQxS
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MUNICIPALITY OF ANCHORAGE
On -Site Water & Wastewater Program
PO Box 196650 4700 Elmore Road
Anchorage, Alaska 99519-6650 Phone: (907) 343-7904 Fax: (907) 343-7997
http://www.muni,org/onsite
On -Site Wastewater Disposal System Permit
Permit Number: OSP251373
Work Type: Septic Upgrade
Tax Code Number: 01742129000
Site Legal Address: FROSTAD LT 3 G:2840
Site Mailing Address: 12630 RYA ST, Anchorage
Owner: MILLAR RICHARD A & DIANE L
Design Engineer: HUBER ENTERPRISE
This permit is for the construction of:
Effective Date
Expiration Date:
Lot Size in Sq Ft:
Total Bedrooms:
f
1.?cparftnrnt
11/3/2025
11/3/2026
73290
Non -Public
Q Disposal Field Q Septic Tank ❑ Holding Tank ❑ Privy ❑ Water Well ❑ Water Storage
All construction shall 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 wastewater code requires inspections during the installation. The engineer shall notify the Development
Services Department per AMC 15.65. Coodinate with On -Site staff regarding preferred method.
4. From October 15 to April 15, a subsurface soil absorption system under construction during freezing weather
shall be either:
a. Opened and Closed on the same day, or
b. Covered, sealed, and heated to prevent freezing
4
Special Provisions: A test hole is required prior to construction of the absorption field, in the location shown on
the site plan, to confirm minimum separation to impermeable soil. If results require a design change, construction
shall stop pending approval of a change order. Please submit results with the inspection report (or change order,
if required).
iC l v' , T l r 0 %Li -I) i =-S/ i,,,V
Issued To: HUBER ENTERPRISE Date: 11/3/2025
Issued By: Curtis Townsend Date: 11/3/2025
MUNICIPALITY
Development Services Department ..,, Phone: 907-343-7904
On -Site Water & Wastewater Section
ON -SITE SEPTIC/WELL PERMIT APPLICATION
Parcel LD. 01742129000
Property owner(s) Millar, Richard and Diane Day phone
Failing address 12630 Rya Road, Anchorage AK, 99516
Site address 12630 Rya Road, Anchorage AK, 99516
Legal description Frostad Lot 3
Number of Bedrooms
Engineering Firm Huber Enterprise AK
Building Permit Number Not Applicable Fk
APPLICATION IS FOR: APPLICATION IS AN:
(M all that apply)
Disposal Field Initial
Septic Tank Upgrade 0
Holding Tank ❑ Renewal
Privy
Well
Water Storage
THIS APPLICATION INCLUDES A WAIVER REQUEST FOR:
No Waivers Requested Distance:
Permit/Rush Fees:Waiver Fees:
Date of Payment: ('ell(Clxt Date of Payment:
Permit No. OP 2Sl373 Waiver No.
May 2025
mpg=
Septic Design Change Order
OSP251373
Owner Information: Millar, Richard A & Diane L
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Submittal Date:
12630 Rya Road
Anchorage, AK 99516
Logan M. Huber P.E.
Huber Enterprise Alaska
PO Box 1299
Willow AK, 99688
(772) 528-6287
L U, 11 � c" 0 ITI
11/10/2025
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Frostad Lot 3
OSP251373
Septic Tank and Drainfield Design Change Order
Project Narrative/Description:
Frostad Lot 3, better known as 12630 Rya Road, is an existing 4-bedroom residential property.
Based on available as -built information, the residence has an existing septic system that consists of a
single 1250 gallon septic tank connected to a mound type absorption bed. The existing system was
installed in 1992 and is failing due to age. A system upgrade was design and permitted under
OSP251373.
Soil investigations were conducted as part of the initial 1992 septic installation. The results of the
historical test holes were relied upon for the design and permitting of the system upgrade. As part of the
approval of OSP251373, additional confirmation test holes were necessary to confirm the existence and
depth of the ML confining layer that was noted in the 1992 soil reports. These new confirmation test
holes revealed much more favorable soil conditions than what were noted in the historical reports.
New Test Holes, TH#1 and TH#2 were both advanced to a depth of 14 feet. They indicated
approximately 1 foot of organic material at the ground surface, followed by GM soils to a depth of 14
feet — the bottom of the test hole. Percolation testing was performed at TH#2 and a percolation rate of
12 minutes/inch was measured. See included soil test reports.
A Change Order is now being requested to switch from two (2) wide trench absorption fields to a
single deep trench field. Also, due to the location of the proposed drainfield and the minimal cover over
the existing septic tank, it is requested to switch to a STEP Tank.
Design Calculations
Flow Rate: 4 Bedroom Main Residence at 150GPD/Bedroom
- Design Flow = 4 bedroom X 150 GPD/bedroom = 600 GPD
Septic Tank Size: Minimum Tank Size shall be 1000 gallons plus 250 gallons for each bedroom over 3 per
AMC 15.65.205. AMC 15.65.220 requires STEP Tanks to have an additional 250 Gallons in capacity
- 1000 + (250 +250) = 1500 gallons
The proposed STEP tank would be a package type system sourced from Anchorage Tank,
Greer, or an approved equal, and shall comply with Municipality of Anchorage Standard
Specifications for Components and Materials.
Application Rate:
- New TH#2 indicates a percolation rate of 12 minutes/inch in the native GM soil layer.
- Per AMC 15.65.210 Table 2 for Conventional Subsurface Disposal Fields, The Application Rate
for deep trench type absorption systems shall be 0.8 gallons/day/square foot.
- Design Application Rate: 0.8 gallon/day/square foot
Drainfield Area:
- (600 gallons/day) / (0.8 gallon/day/square foot) = 750 Square Feet
Drainfield Design: Deep Trench
1. The Effective Absorption area of a deep trench is calculated as the area of the sidewalls below
the invert of the perforated distribution pipe.
2. An Effective Depth of 5 feet will be utilized for this Site.
a. With three (3) feet of proposed cover over the distribution pipe, five (5) feet of
effective depth will maintain six (6) feet of vertical separation from the bottom of the
test hole. This ensures proper separation from any potential confining layers.
3. Minimum Trench Length: L = 750/5/2 = 75 feet
Site Orientation:
- The topography of the property slopes from East to West at approximately 15% slope. AMC
15.65.210.13.3 allows Deep Trench type systems for sites with slopes up to 25%. The
Proposed Deep Trench drainfield shall be aligned parallel to the existing contours of the
ground.
I am unaware of any adverse impacts this installation would have on any wells or septic systems
constructed in the adjacent area. Should you have any questions or require any additional information,
please do not hesitate to contact me.
Sincerely,
Logan M. Huber P.E.
(772) 528-6287
Lhuber87@gmail.com
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DESIGN CRITERIA:
1. 4 BEDROOM RESIDENTIAL DWELLING
4 BED X 150 GPO/ROOM = 600 GPD
1.1. MIN SEPTIC TANK SIZE = 1250 GAL
S. TE.P. TANK PROVIDED = 1500 GAL
PERCOLATION RATE = 0.8 GPD/SF
2. REQUIRED ABSORPTION AREA =
600 GPD / 0.8 GPD/SF = 750 SF MIN
2.2 ABSORPTION AREA PROVIDED = 750 SF
2.1. DRAINFIELD TYPE = DEEP TRENCH
2.2. LENGTH = 75 FT
2.3. EFFEC TI VE DEPTH = 5 FT
2.4. NUMBER OF TRENCHES = 1
3. NO CONFINING LAYER ENCOUNTERED TO 14
FEET BGS
4. NO WATER TABLE ENCOUNTERED
4.1. TANK BUOYANCY BALLAST IF WATER
ENCOUNTERED = 2.70 C Y CONCRETE
5. PVC PIPE MATERIALS SHALL CONFORM TO
MUNICIPALITY OF ANCHORAGE STANDARDS AND
SPECIFICATIONS FOR COMPONENT PARTS AND
MA TERIAL S.
6. BOTTOM OF DEEP TRENCH TO BE LEVEL WITHIN
4" PRIOR TO PLACEMENT OF DRAINROCK.
7. DISPOSAL FIELD SHALL HAVE A MINIMUM OF 3
FEET OF COVER. IF LESS THAN 3 FEET, 2
INCHES OF RIGID ROAM BOARD INSULATION
SHALL BE USED. 1 FOOT MIN COVER OVER
INSUL A TION.
8. MAXIMUM EXCA VA TION DEPTH FOR
CONSTRUCTION SHOULD NOT EXCEED 8 FEET
B. G. S
CHANGE ORDER DESIGN
VEFRIFY THIS WAR HLI'HL5ENI5 IF BAR IS NOT ONE "ULL SIZE SCALE REUSE OF DOCUMENTS HUBER ENTERPRISE AK �. �••••�� OWNER:
ONE INCH ON ORIGINAL INCH, ADJUST DRAWING HOR2 SCALE: t"m 20' RECORD DRAWING Note: To be filled out on original drawings upon project completion, ••• FROSTAD
SCALE VERT SCALE: N/A 1. DATA PROVIDED BY: 3.Bosed on periodic field observations b the LOGAN M. HUBER, P.E. �(E • MILLAR, RICHARD &
DRAWING. SCALE ACCORDINGLY. P e r �Pr"""'•'"'•'^.., •• LOT 3
THIS DOCUMENT AND THE G� • DIANE
DATA "a" DATA REV DATE DESCRIPTION BY This will serve to certify that these Record Engineer (or on individual under his/her direct IDEAS INCORPORATED HEREIN, f''`' ••
Drawings are a true and accurate supervision). the Contractor— provided data PO BOX 7299 i� tF • ADDRESS:
BASE --- --- TELEPHONE --- --- 9P AS AN INSTRUMENT OF M • 12630 RYA ROAD
representation of the project as constructed. appears to represent the project as constructed. WILLOW AK, 99688 �..../.... • 72630 RYA ROAD ANCHORAGE AK, 99516
TOPOGRAPHY --- --- ELECTRIC --- --- P P le PROFESSIONAL SERVICE, IS i
CONTRACTOR: THE PROPERTY OF HUBER • ,„ r ANCHORAGE AK, 99516
PROFILE --- --- CABLE iv --- --- DATA TRANSFER CHECKED BY: • r
BY: TITLE: ENT. AK AND IS NOT TO BE • OCAN M. HUBER r
SANITARY SEWER --- --- TRAFFIC SIGNAL --- --- COMPANY: •G' SEPTIC SYSTEM REPLACEMENT
STORM SEWER --- --- DESIGN --- --- DATE: USED, IN WHOLE OR IN PART, ♦� CE t79770
BY: TITLE: FOR ANY OTHER PROJECT ••• t/tn/20PLAN VIEW
WATER --- --- ouaNnrlEs --- --- Z. DATA TRANSFERRED BY. PATE; WITHOUT WRITTEN PHONE: (772)528-6287 • q+...�,„,„.—.`y : PHONE:
GAS --- --- 1KJ11 FINAL CHECK --- --- COMPANY: AUTHORIZATION OF HUBER ••••4 "";p�•' VER"ORY SCALE: N n O DATE; NOV 2025 GRID: SW2Ba0 /
PLAN CHECK REVISIONS DATE: ENT AK
CONSULTANT SEAL OWNER PROJ.ID.: PS%%XX% PLAN SET XX%%X SHEET of 2
INSTALL MONITORING TUBES
AT OPPOSITE ENDS
EXISTING GRADE +/-1076'
OF DEEP TRENCH
PL
PER G1S CONTOURS.
I
BURY NEW S.T.E.P. TANK
I
WITH MIN 4' COVER
1060
I
BACKFILL AS NECESSARY 24' PUMP ACCESS RISER.
TO MAINTAIN 3' MIN COVER INSULATED WITH 4' RIGID FOAM
2q• MANHOLE RISER.
EXTEND ABOVE FINISHED GRADE.
INSULATED WITH 4' RIGID FOAM
I
I
EXTEND ABOVE FINISHED GRADE
1075
1
DEFLECT EXISTING
4'
I
GEOTEXTiLE FILTER FABRIC
PVC TO MATCH
INCREASED CONSTRUCT DEEP TRENCH
I
TYPAR 3401 OR EQUIVALENT
SEPTIC COVER
ABSORPTION FIELD.
I
75 FEET LONG
I
INSTALL NEW 1.25'
1
5 FEET EFFECTIVE DEPTH
1070
I
5.0'
DISCHARGE TO DRAINFIELD
:REPLACEMENT
BELOW
I INSTALL 11.25' BEND
11500 GALLON TO MEET EXISTING SEWER
I
INVERT
I S.T.E.P. TANK
I
I PACKAGE TYPE S.T.E.P. TANK
I
SYATEM FROM ANCHORAGE TANK,
I
GREER, OR APPROVED EQUAL
1065
I
I
- �
MECHANICAL WATERTIGHT
COUPLINGS ON ALL CONNECTIONS
--'--
TO S.T.E.P. TANK. FERNCO OR
_
_ --"-
EQUAL
1.25' PERFORATED PVC
PRESSURIZED DRAINFIELD
DISTRIBUTION PIPE.
LIMITS OF SOIL TEST HOLES
LAID LEVEL
--___--- NEW SOIL
_-_---------
TEST TH#1
PROPOSED SEPTIC CROSS SECTION
INSTALL NEW 1M
75' LONG X 5' EFFECTIVE
750
DISCHARGE
FRD.T.E,P. TANK
S
INSTALL MONITORING TUBES
AT OPPOSITE ENDS
OF DEEP TRENCH.
PERFORATED PIPE WITHIN
DRAINROCK
INSTALL MONITORING TUBES
AT OPPOSITE ENDS
FINSISHED GRADE TO FOLLOW
OF DEEP TRENCH.
t075' CONTOUR GEOTEXTILE FILTER
FABRIC PERFORATED PIPE WITHIN
TYPAR 3401 OR EQUIVALENT DRAINROCK
1075
75-
PROPOSED SEPTIC
1070
DETAIL
DRAINROCK
1065
INSTALL NEW 1.25'
PERFORATED DISTRIBUTION
LATERAL
NEW SOIL
NEW SOIL
TEST THRI
TEST THN2
INSTALL MONITORING TUBES
AT OPPOSITE ENDS
OF DEEP TRENCH
CUT EXISTING 4'
INSTALL +/-96 LF PVC SEWER. DEFLECT AS
2.25' SOLID PVC NECESSARY TO MATCH
DEEPER S.T.E.P. TANK COVER
NO CLEANOUTS REQUIRED
O O
ON
PRESSURIZED PIPE
CHANGE ORDER DESIGN
VERIFY
THIS BAR REPRESENTS IF BAR IS NOT ONE
ONE INCH ON ORIGINAL INCH, ADJUST DRAWING
FULL SIZE SCALE
HORZ SCALE: NTS
RECORD DRAWING Note: To be filled out on original drawings upon project completion,
REUSE OF DOCUMENTS
HUGER ENTERPRISE AK
�.. "+���
��
- O �q
OWNER:
FROSTAD
SCALE
DRAWING.
SCALE ACCORDINGLY.
VERT SCALE: N/A
1. DATA PROVIDED BY: 3.Bosed on periodic field observations by the
This will serve to certify that these Record Engineer (or on individual under his/her direct
Drawings ore o true and accurate supervision), the Controctor- rovided data
9P
representation of the project as constructed. appears to represent the project as constructed.
P P 1e
CONTRACTOR:
DATA TRANSFER CHECKED BY:
BY: -TITLE:
COMPANY:
GATE:
BY: TITLE:
2. DATA TRANSFERRED BY: DATE:
COMPANY:
DATE:
LOGAN M. HUBER, P.E.
WI BOX 7299
WILLOW AK, 99688
PHONE: (772)528-6287
.�nP k �•i•
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• """'+' "�
• OWN M. BORER ?
•
•• 1 178710
• 1/10/2U :
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�hESSt.•�
RO*�„� `�
MILLAR, RICHARD &
DIANE
ADDRESS:
12630 RYA ROAD
ANCHORAGE AK, 99516
PHONE:
LOT 3
12630 RYA ROAD
ANCHORAGE AK, 99516
SEPTIC SYSTEM REPLACEMENT
PLAN VIEW
THIS DOCUMENT AND THE
IDEAS INCORPORATED HEREIN,
AS AN INSTRUMENT OF
PROFESSIONAL SERVICE, IS
THE PROPERTY OF HUGER
ENT. AK AND IS NOT TO BE
USED, IN WHOLE OR IN PART,
FOR ANY OTHER PROJECT
WITHOUT WRITTEN
AUTHORIZATION OF HUBER
ENT AK
DATA
DATA
REV
DATE
I DESCRIPTION
BY
BASE
---
---
TELEPHONE
---
---
TOPOGRAPHY
---
---
ELECTRIC
---
---
PROFILE
---
---
CABLE iv
---
---
SANITARY SEVER
---
---
TRAFFIC SIGNAL
---
---
STORM SEVER
---
---
DESIGN
---
---
WATER
---
---
OUANTITIES
---
-
HORZ SCALE: NTS
VERT SCALE: N A DATE: NOv 2025 GRID: Sw2840
SHEET 2 of 2
GAS
---
---
WN FINAL CHECK
---
---
PLAN CHECK
REVISIONS
CONSULTANT
SEAL
OWNER
PROJ. ID.: PSXXXXX PLAN SET XXXXX
C0-0j
Municipality of Anchorage ,� tr��ttR� ;tom
Development Services Department
On -Site Water and Wastewater Section a • ,►.� 4700 Elmore St. wo. f ....... ........... f l
P.O. Box 196650 Anchorage, AK 99519-6650
(907) 343-7904 jt MICHAEL N. ANDERSON
CE - 9469
Soils Log - Percolation Test
Performed For: ���, �.. fl/j,"� /" Date Performed:
Legal Description: q U., V �q� � t- -5 Township, Range, Section:
r_--rg ;,�t_ ( D_.
Depth
1=
2-
3-
4-
5-
6-
7-
10-
11-
12-
13-
14,
15-
16-,
17- 1
16-
19-
20.
9M
'tAIL
0-0 f/0 rn,
WAS GROUND WATER
ENCOUNTERED? (j
IF YES. AT WHAT DEPTH?
Depth to Water After
Monitoring? ail
Date: —I jb.jo1-Z
Reading
Date
Gross Time
Net Time
Depth to Water
Net Drop
e;p d t
C
!0
r GnV _.'Wil R/11 C (m +nines/imh) PEKG HOLE DIAMETER
TEST RUN BETWEEN FT AND FT
COMMENTS
PERFORMED BY: I CERTIFY THAT THIS TEST YVAS
PERFORMED IN ACCORDANCE WITH ALLSTATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. DATE: I j /jf
c.D a .1
Municipality of Anchorage
Development Services Department
On -Site Water and Wastewater Section
4700 Elmore St.
i P.O. Sox 196650 Anchorage, AK 99519-6650
(907)343-7904
• �S
d iy
491w '. .
e
II rn • MICHAEL N. A,,XKR5C N
tit• CE-9469
Soils Log - Percolation Test t;�Q ry •••• ;`�; ='
Performed For: Y"-1 �- �� 1 aryt Date Performed: !� �►�•
Legal Description: (^ y jV )t J-0 LU I- , Township, Range, Section:
r-- Slope Site Plan
(Feet)) 0 PCI
WAS GROUND WATER , / {�
9_ ENCOUNTERED? jV V
S
10_ IF YES, AT WHAT DEPTH? L
O
Depth to Water After
11 _ Monitoring? 4 E
12-1 Date: I% If� Z�
13-
141----4— ('4> 0 t'r o ve
COMMENTS
Reading
Date
Gross Time
Net Time
Depth to Water
Net Drop
2- , +f
40 t/
215-0
�t!
fiN
�jlt
ZrSlf
PERCOLATION RATE j 2+ (rrrinutes4nch) PERC HOLE DIAMETEK -�ag- r
TEST RUN BETWEEN _AFT AND %( ^FT
PERFORMED BY: M &� I CERTIFY THAT THIS TEST WAS
----------
PERFORMED IN ACCORDANCE WITH ALLSTATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. DATE: t [ Z
N89°52'05"W
210.00 10'T&EESMT
-----------------------------------------------------------L---- -L--
I
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1 31.0
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Pole Barn I
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EXISTING z
BUILDING
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LOT 3
73,290 S.F.
1.682 ACRES
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-------- ---------------------------------------------------------�--
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89°53'35"W
607.73
30'
30'
EXCLUSION NOTES: It is the owners' responsibility to determine
LEGEND: SET FND
ORDERED BY
the existence of any easements, covenants, or restrictions
5/8"RB W/CAP@) 5/8" RB 0
R C K M I L- L- A R
which do not appear on the recorded subdivision plat. NOTE: It
3.25" AL.MON. MONUMENT
is the contractor's responsibility to check top of foundation
HUB & TACK p
grade and building setbacks in relation to lotlines and esm'ts.
FENCE- x— x
SURVEY CERTIFICATION: SLANA has conducted a
OVERHANG -
physical survey of this property as shown on this
WOOD DECKS-
S LA NA SURVEYS
INC.
drawing and to the best of our knowledge and
abilities, all dimensions have been measured true
CONCRETE- 0
ASPHALT- 0
and Correct.
I SEPTIC STANDPIPES-
A S B U I L T S U R V L Y OF: LEGAL DESCRIPTION:
WATER WELL-
I ELEV.(NO DATUM)- 100.0
1 ANII Rr (1(1NCTRI I(`TI()N CI IR\/FV(1RC-PI
1200 E. 76TH Ave., Unit 1226
ANCHORAGE, ALASKA 99518
(907) 562-6103 1 LOT 3
03-SL-999A ° A
SCALE:
12, 2025 1"=40'
Y: CHECKED BY GRID NUMBER:
t. 2840
87-'°° FROSTAD SUBDIVISION
BC /PAGE:
03MISC
· . -. Municipality of Anchorage Page
'- DEPARTMENT OF HEALTH AND HUMAN SERVICES
, ENVIRONMENTAL SERVICES DIVISION
P.O. Box 196650 · Anchorage, Alaska 99519-6650 · Telephone: 343-4744
On-Site Wastewater Disposal System and/or Well Inspection Report
Permit Number: .~l/J~tlC~:~PID Number: ~ ~
Na.~e~ Wastewater System: ~ew D Upgrade
· ~l ~. ~~ ~ ~D ~~ ABSORPTION FIELD
=hone: IN°'°fBe?~ms: ~ Deep Trench ~ Shallow Trench ~Bed~ound ~Other
LEGAL DESCRIPTION ~ So..~n~: ~~~ ~tal Depth from original grade:
c~ Ft.
Lot: ~ Bio Subdivision: Depth to pipe bottom from original grade: Gravel depth beneath pipe
added above original grade:. Gravel length:
TownshiP: ~ Range: ~ Sect,on: Fill ~.~ Ft. ~ Ft.
WELL: D New D Upgrade Gravel~;pt~:~ · 1~~ Number of lines: IOistance~nlines:
Classification (Private, A,B,C): Total Depth: Cased To: Total absorption area: Pipe ~atertal:~[~
~. ~. ~so. ~,. ~
~riller: Date Drilled: Static Water Level: Ins~~~
Ft.
Yield: ~ Pump Set at: I ~sing Height Above Ground: TAN K
GPM Ft. ~ Ft.
'SEPARATION DISTANCES ~eptic ~ Holding ~ S,T.E,P.'
To Septic Abso~tion Lift Holding Publi~Private Manufacturer: Capacity In gallons:
:rom Tank Field Station ,.nk SewerLinee k~~¢ ~~
Number of Compadments:
Well ! ~ j I I ~ j ~ ~' ~ Material~ ~
Sudace ~ ~
water I~'~ I~ LIFT STATION
Lot IO ' ~ tO'~ ~ ~ s,~ ~. g~,,on.: ~ u~.ufac,~.~:
Line ~
Electrical Inspections pedormed by:
Cu~ain ~ .
.emar~: ~T,[~ ~P ~>~"~ SENCH aARK
,_ .__ _ 17034 E~le River L~p ~d. ~=,~ ~ .~ ~ .. ~ .
P = ' " 2nd~ ~% ~ER]~SHAFER
Department of Heal~.~n~ Human Se~ices approval ,,~x-..
Reviewea a.a ~pp~ovea ~y: ~ ~ Date: /- ~ - ~
72-013 (1191) MOA 25
Perr~it No. '~/,'~ ~ I ~.~Jo~r_ Page ~ of ~
' Municipality of Anchorage
DEPARTMENT OF HEALTH AND HUMAN SERVICES
ENVIRONMENTAL SERVICES DIVISION
P.O. Box 196650 · Anchorage, Alaska 99519-6650 · Telephone: 343-4744
On-Site Wastewater Disposal System and/or Well Inspection Report
Legal Description~~-~~ ~~.~ J.~4~r~ ~ .
72-013 A (Rev. 9/91) MOA 25 ,~
MUNICIPALITY OF ANCHORAGE
DEPARTMENT OF HEALTH AND HUMAN SERVICES
P.O. BOX 196650, 825 "L" STREET, ROOM 502
ANCHORAGE, ALASKA 99519-6650
ON-SITE WELL AND WASTEWATER DISPOSAL SYSTEM PERMIT
PAGE 1 OF 1
PERMIT NUMBER:SWg10287 DATE ISSUED: 9/12/91
DESIGN ENGINEER:FLATTOP TECHNICAL SERVICES EXPIRATION DATE: 9/12/92
OWNER NAME:FORREST KIMBALL /~.~7R~ 3~-~a"
OWNER ADDRESS:201 E. 56TH SUITE 350
ANCHORAGE, ALASKA 99518
PARCEL ID:01742129
LEGAL DESCRIPTION: FROSTAD LT 3
LOT SIZE: 73290 (SQ. FT.)
NUMBER OF BEDROOMS: ~'THIS PERMIT: / ~
THIS PERMIT IS FOR THE CONTRUCTION OF:
DISPOSAL FIELD / WELL SYSTEM
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 FOLLOWING SPECIAL PROVISIONS.
SPECIAL PROVISIONS
RECEIVED BY:
ISSUED BY:
CIYH. & ENVIRONMENTAL ENGINEERLNG ,* ENERGY CONSERVATION & ANALYSIS
THEODORE F. MOORE, P.E. 14530 ECHO ST.
PH: (907) 345-1355 September 10, 1991 ANCHORAGE, ALASKA 99516
M.O.A. DHHS
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 3 of Frostad S/D, located on Rya Road. Soils
logs, pert 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 # 1. As can be seen from the soil
log, the native material between 1.5' and 6' in depth is a slightly silty sand with a measured pert rate
varying from 1 to 2 minutes per inch. We have conservatively based the design on the soil application
rate specified for filter sand. Using the soil application rate of 0.7 gpd/sq, ft. specified in the wastewater
ordinance, this 3 bedroom residence will require a total absorption area of (3 x 150)/0.7 = 643 square
feet. The proposed 15' x 43' design has a total absorption area of 645 sq~u. are feet. An equal sized reserve
area is designated in the vicinity of test hole #2.
The topography of the lot slopes to the west at 15%.
The proposed project will have no impact on present or future water supply and wastewater disposal
systems serving adjacent properties, nor will it have any impact on reserved space/surface and subsurface,
or on drainage.
Please give me a call at 345-1355 if you have any qu, estions on this submittal.
Sincerely,
Ted Moore, P.E.
0
J
N
'~' 2.5'
O<--. t,4.T. ,S" ~" PERF
15'
¢. C,O. 5 ' MONTUBEtToR' .;....~O
I
PLAN VIEW
I'-- I0~
SEPTIC 'rANI<
~, Ho14 -PERF
~LOPE CovER
' ' Ex~VA~E Lo~ -- ' ~ SP/S~ ~olL J' DEEP
SECTIOH A - A
SCALE: 1"--,5"
_.Fl. attS'~ T~hi~ic~l S~ices
14530 Echo Street
Anchorage, Alaska 99516
LOT 3 1:'P-,OS'TAD
SOIL ABSORPTION
PLAN ANb CRoss SECT IoN
SCALI~ ' As
bATE:
Flattop Technical Services
14530 Echo Street, Anchorage, AK 99516
Phone (907) 345-1355
1.0 General:
Lot 3, Frostad S/D
Rya Road, Anchorage
Wastewater disposal system installation
Specifications
1.1 The scope of the project consists of the installation of a 1000 gallon septic tank followed by a 15'
wide by 43' long soil absorption bed.
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 with Municipal and State
requirements.
1.3 All separation ~stances shall be in conformance with Municipal requirements, unless specifically
waived.
1.4 The contractor shall be responsible to obtain any necessary utility locates, and to work around any
buffed utilities.
2.0 Septic Tank:
2.1 The 1000 gallon septic tank shall be Municipally approved with a minimum of two compartments,
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.
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, and the waste
line between the tank and the soil absorption system shall have a minimum slope of 1/8" per foot. A
cleanout shall be installed within 5 feet of the building foundation, and a double cleanout shall be installed
within 5 feet downstream of the septic tank.
3.0 Soil absorption system:
3.1 The soil absorption system shall be constructed by stripping off the surface peat and sandy loam
strata to expose the top of a slightly silty sand stratum at a depth of approximately 1.5 feet. A level bed
bottom shall be created in this material at a depth of 3.0 feet below the original ground level on the uphill
side of the soil absorption bed. The bottom surface on the downhill side of the bed may be built up as
-necessary with excess sand removed in creating other portions of the bed.
3.2 A total of 1.0 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 6 inches 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.
3.3 Monitor tubes an'd cleanout pipes 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.
3.4 Approved filter fabric shall be placed over the entire top surface of the sewer gravel. 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. A minimum of 2 feet of soil cover is to be placed over the insulation, with the top 4 inches
being topsoil.
3.5 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. Final seeding shall be the responsibility of the homeowner.
4.0 Inspections:
4.1 A total of 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 fight 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 and filter fabric, and (4) after final backf'dl and grading is'
complete· The septic 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.
4.2 The installer shall coordinate the timing of the inspections with the engineer sufficiently far in
advance to ensure the availability of the engineer.
PERFORMED FOR:.
Techni~a! Se~:vices
, 14530 Echo Street
, :/~Chorage, .Alaska 99516
Municipality of Anchorage
DEPARTM'EN:I' OF HEALTH & HUMAN SERVICES
825 "L" Street, Anchorage, Alaska 99502-0650
SOILS LOG "-- PERCOLATION TEST
~t~8,~tLL F'oI~' R E ~'T'
DATE PERFORMED:
LEGAL DESCRIPTION: -/
PT
1 St~ REbb tSfi
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19~
Lo^lYf
5P/5~ SLiGH'[L'{ SILTY SA/Cb
(LENSES oF CLEANE~ (~P')
hi,lb SJ/.-TJEP-,. (..~L'~ HATEi~A L
SILTY
WAS GROUND WATER
ENCOUNTERED? _ N
IF YES, AT WHAT
DEPTH?
Township, Range, Section:
B.H:
SLOPE
Depth to Water After ~/' ~'
Monitoring? ~)RY Date: $L2.'7
Reading
PRESOMc
SITE I~LAN
SE[.."
$1T - .., .
PL, A 1J
Date
Gross
Time
~..31
Net
Time
e + H~.o ~': 5q: 30
5: ~7: $o 3
Depth to
Water
2~
22
t H~o 5:38 23
$:4!
$:q1:3o
3
PERCOLATION RATE , ~
TEST RUN BETWEEN .. !,..~' -- FT AND ..
COMMENTS_
PERFORMED BY: FLATTOP l'~'cg. ,SVC% t~.__~"/l.e-~,~c._,,_=
ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE.
72-008 (Rev. 4./85)
(m,nutes/inch) PERC HOLE DIAMETER
~- FT
Net
Drop
CERTIFY THAT THIS TEST WAS PERFORMED IN
DATE: ~ / ~fO /9/
PERFORMED FOR:,
~tb-15 Techni~a! Services
.. ~ · 14530 Echo Street
, 2[fi~horage, .Al.aska 99516
Municipality of Anchorage
DEPARTMENT OF HEALTH & HUMAN SERVICES
825 "L" Street, Anchorage, Alaska 99502-0650
SOILS LOG "~ PERCOLATION TEST
J~It~B~LL F'o i~' R EST'
DATE PERFORMED:
LEGAL DESCRIPTION: L 3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18.
2O
FRoS'TAD
5~ E'EbD~$~ 5AHD'.! Lo~P1
COMMENTS. THIS PER(; 'TEST
BECoPuN G I~E~$E~
WITH INCREAGI~/G
5~L'rY 5,~Nb
WAS GROUND WATER
ENCOUNTERED? N
SLOPE
Township, Range, Section: 5'£C. 2~' T 12
SITE r~LAN
IF YES, AT WHAT
DEPTH?
SE[..'
SITI-
PLA
Deplh Io Waler After j~/' T:
Monitoring? ~R~ Dale:.,
Reading Date Gross Net Depth to
Time Time Water
3:22 2v
~o
START
-I.
3:25:$o
~:2q;3o
~:3ur
21
2!
2
2 21 '/,~
' ! Net
Drop
PERCOLATION RATE
TEST RUN BETWEEN
'~oN E; NE;X'T T°
I
(m~nutes/inch) PERC HOLE DIAMETER
"~ FTAND 3.,.5" .ET
PERFORMED BY: FLATTOP 'rE'c/4, 5VC~ , ~?-..~ ~
ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFEC'I ON THIS DATE.
72-008 (Rev. 4/85}
CERTIFY THAT THIS TEST WAS PERFORMED IN
DATE: J/'10/~(
S~pt~mb~r 8, 1992
ROBERT SHAFER, P.E.
ROGER SHAFER, P.E.
CIVIL ENGINEERS
(907) 694-2979
FAX 694-1211
HEALTH AUTHORITY
APPROVALS
SEWER & WATER
MAIN EXTENSIONS
SEWER & WATER
INSPECTION
ENGINEERING STUDIES
AND REPORTS
WELL INSPECTION
& FLOW TEST
SITE PLANS
ROAD DESIGN
SOIL TEST
PERCOLATION
TEST
STRUCTURAL &
MECHANICAL
INSPECTIONS
ON SITE
WASTE WATER
DISPOSAL SYSTEM
DESIGN
SUSAN OSWALT
Mu,icipality of Anchorag~
DEPARTMENT OF HEALTH AND HU~N SERVICES
825 L Str~t
P.O. Box 196650
A~chorage., Alaska 99519-6650
REFERENCE: Lot 3; Fro6tad Subdivi6ion
Permit # SW910287
RECEIVED
SEP 8 1992
lv;u:~:c,pahZy ut Anc
Dept. Health & ~4.,.,.~_h..°rag. e
D~r Su6an,
P~r our l~tt~r dated July 28, 1992 w~ hav~ performed a p~rcola~on t~6t
on th~ ML so~ lay~ ~ 6 ft. d~p ~ d~pi~ on th~ 6o~ log6 bE
Fl~op T~ch~ S~vic~ ~d Aught 20, 1991. W~ hav~ found th~
perco~on rat~ of t~ ~o~ ~ b~ g~ t~n~i~ p~ ~.,
Th~for~, w~ ~v~ d~v~op~d a n~ plan and prof~} of th~ propo6~d
~p~c l~chfi~d for ~our r~vi~ a~ approve., ~J.~
At t~6 ~ I ~o w~h to lnfo~ Vou t~6 ls an own~ ln6~
H~ ~ on-6~ w~h ~q~pm~, th~for~, Vo~ ~xp~ r~vi~ a~
r~plv wo~d b~
Sincerely,
ROGER J.. SHAFER, P.~E.,
RJS/gm
17034 EAGLE RIVER LOOP, SUITE 204, EAGLE RIVER, ALASKA 99577
~INII'I D.F_..
e.~A'I '._ .. UPNIU. ~:lbE.
f
RECEIVED
8EP 8 1992
:'4u ~.c.pal :¥ ul Ai,cr~orage
l).~pt. Health & Human Servic~
HEALTH AUTHORITY
APPROVALS
SEWER & WATER
MAIN EXTENSIONS
SEWER & WATER
INSPECTION
ENGINEERING STUDIES
AND REPORTS
WELL INSPECTION
& FLOW TEST
SITE PLANS
ROAD DESIGN
SOIL TEST
PERCOLATION
TEST
STRUCTURAL &
MECHANICAL
INSPECTIONS
ON SITE
WASTE WATER
OtSPOSAt. SYSTEM
DESIGN
ROBERT SHAFER, P.E.
ROGER SHAFER, P.E.
July 28, 1992
CIVIL ENGINEERS
(907) 694-2979
FAX 694-1211
Municipality of Anchorage
DEPARTMENT OF HEALTH AND HUMAN SERVICES
825 L Street
Anchorage, Alaska 99501
REFERENCE: Lot 3; Frostad Subdivision
Permit #SW910287
RECEIVED
JUL 2 8 1992
Municipality of Anchorage
Dept, Health & Human Services
Request you upgrade the referenced permit to a four bedroom capacity.
The proposed septic system was originally designed by Flattop Technical
Services. We feel the original design is suitable for a four bedroom
house. However, the dimensions are to be increased to 15' x 58', to
accomodate the increased estimated daily flow demand.
There is a poorer ML soil layer noted during the original soil testing.
The permeability of the layer is of concern. At this time we propose
the percolation of the soil to verify permeability. If the percolation
rate is greater than 60 minutes per inch, a sand filter is to be
installed in the bottom of the absorption bed to achieve a 6'
separation to an impermeable layer.
If you have any questions or require additional information for your
review, please contact us.
Sincerely,
ROGER J. SHAF~R, P.E.
RJS/tv
17034 EAGLE RIVER LOOP, SUITE 204, EAGLE RIVER, ALASKA 99577
MUNICIPAl ANCHORAGE-:;
AU'
~BEDRO
NOTIqE:;; : if . commun
~te'ADEC!
,WASTEWATER !OS
ommun
commun
q,',.! ~*atteStin
72-025 (Rev:1~91) Front MOA#21 ' -
Legal Description: /---'=:'~-
Municipality of Anchorage,
Department of Health and Human Services
HEALTH AUTHORITY ~APPROVAL CHECKLIST
..~ ~'/~=577'~ -'~=v/c'-~ Parcel I.D.
A. Well Data
Well type
Log preset)
Total depth
Sanitary sea~)~l)~'
If A, B, or C, attach ADEC letter. ADEC water system number
Date completed p//z.?//~? 2_...i Driller' .~'~,.-~ ,C,,,~I/..r_./,~G
Cased to /----~O" ~.. Casing height /
Wires properly protected~N)' WI
Date of test
static water level
Well tlow
Pump level1
FROM WELL LOG
SEPARATION DISTANCES FROM WELL TO:
Septi~ank on lot [ O//
Absorption field on lot / Z.O '
g.p.m.
; On adjacent lots
; On adjacent lots
AT INSPECTION
Public sewer main
sewer service line ~'~ /'/'- '
WATER SAMPLE RESULTS:
Coliform (~//00/,~.~...~ Nitrate
Date of sample: 0 _~/(_.) 2--/
SEPTI~TANK DATA
pUblic sewer manh01e/cleanout
Petroleum tank
Cleanouts ~_.J~) ~/~:~.~ Foundation cleanout~N)
High water alarm (Y~"~ ,,,L Jo Alarm tested (Y/N,) '
SEPARATION DISTANCES FROM sEpTIC/~ TANK TO:
Well(s)on lot / ~ / [ On adjacent lots / O~ [~
Compartments ~
Depression (Y~)
To property line /~_~ r./..._ Absorption field
Sudacewater/drainage /O(.~ ~ .
72-026 (3/93)* Fro~t
Water main/service line