HomeMy WebLinkAboutEKLUND #1 BLK 4 LT 3EKLUND #1
Block 4
Lot 3
050 - 531 - 19
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
hftp://www.muni.org/onsite
On -Site Water & Wastewater System Permit
Permit Number: OSP241297
Work Type: WellSeptic Initial
Tax Code Number: 05053119000
Site Legal Address: EKLUND #1 BLK 4 LT 3 G:0702
Site Mailing Address:
Owner: SCOTT ABIGAIL L
Design Engineer: AK BUILT CONSTRUCTION & DESIGN LLC^
This permit is for the construction of:
Q Disposal Field Q Septic Tank ❑ Holding Tank ❑ Privy
Effective Date:
Expiration Date:
IV1mrtrnent
9/26/2024
9/26/2025
Lot Size in Sq Ft: 37230
Total Bedrooms: ,,,-t--
Q Private 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. Provide notification by calling (907) 343-7904 (24/7).
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
c I- tlfr 0 r- -i c, jD
Received By: S S - 01 7— Date:
Issued By: Date: 2 20 2 '�
MUNICIPALITY 0-F
Development Services Department
On -Site Water & Wastewater Section '
ANCHORAGE
ON -SITE SEPTIC/WELL PERMIT APPLICATION
Phone: 907-343-7904
Fax: 907-343-7997
Parcel I. D. SC S Z 1 19 0%
Property owner(s) �A6.: a A Sc Day phone a, Q�lq _t�\O
Mailing address
Site address 14 2 2rr 1< fr. ru �ir n I o eAMA11-
Legal description (Sub'd., Block & Lot)
Legal description (Township, Range & Section)
Lot Size Sq. Ft. Number of Bedrooms _
APPLICATION IS FOR:
APPLICATION IS AN:
TYPE OF DWELLING:
(N all that apply)
Absorption Field
Initial Q5
Single Family (SF)
ADU)
Septic Tank
(�
Upgrade El(w/wo
Duplex (D)
❑
Holding Tank
❑
Renewal ❑
Multiple Dwellings
❑
Privy
(SF and/Or D)
Private Well
Water Storage
❑
THIS APPLICATION INCLUDES A WAIVER REQUEST FOR:
Distance:
certify that the above information is correct. I further certify that this is in accordance with
applicable Municipal Codes.
of property owner or authorized agent)
Permit/Rush Fees: � S w
Date of Payment:
Receipt Number: / 7. 3 ��
Permit No. -5)12 /2
Waiver Fees:
Date of Payment:
Receipt Number:
Waiver No.
GADevelopment Services\Building Safety\On Site Water and Wastewater\Forms\Client FormsTermit Application.doc
AK BUILT C❑NSTRUCTION & DESIGNS LLC
GENERAL CONTRACTING - ENGINEERING - PROJECT ADMINISTRATION
October 19, 2024 C to -
Municipality of Anchorage
Development Services Department
On -Site Water and Wastewater Section
PO Box 196650
Anchorage, AK 99519
RE: Eklund #1 Block 4 Lot 3 — Septic System & Well Permit Request
A permit is requested to install a septic system and well for the subject property. The designed system will
serve a proposed 2-bedroom, single-family home. The subject property is vacant with no existing
structure. An existing permit, OSP241297, has been previously issued but the homeowner has since
decided to include a second bedroom on the proposed home.
Wells
The subject property does not have an existing water well. Neighboring parcels are served by private
water wells. The homeowner intends to install a water well. There are no wells within 100' of the designed
septic system. A thorough inspection was made within 100' and the proposed septic field and no water
wells were found to be located within the 100' separation distance. An alternative well site is provided as
an option to the homeowner but will require the homeowner to utilize the alternative septic tank location
as identified in the plans.
Soils
AK Built Construction & Design, LLC (AK Built) performed test holes, a percolation test, and groundwater
monitoring on August 9th and September 6th, 2024. Groundwater was encountered in TH-01 at seven (7)
feet below ground surface (BGS). TH-02 did not encounter groundwater, but groundwater was observed
at least seven (7) days later at seven and a half (7.5) feet BGS. The percolation rate in TH-02 was two and
a quarter (2.25) minutes per inch. An application rate of 1.0 gallons/day/square feet shall be used for a
conventional wastewater system with filter sand. An additional test hole, TH-03, was excavated October
41h to determine the soil characteristics for a reserve field. TH-03 soil characteristics are similar to TH-02
soil characteristics.
Wastewater disposal systems
The designed wastewater disposal system is a wide trench system with 6" of sewer rock below the pipe
invert and a 24" sand filter. The designed system has the following characteristics.
# Bedrooms: 2
Daily Design Flow: 300 gallons/day
Tank Size: 1,000 gallons
Percolation Rate: 2.25 minutes/inch
Soil Rating: 1.0 gallons/day/square feet
Field Area Required: 300 square feet
System Type: Wide Trench System
Width: 5 feet
Minimum Length: 60 feet
PO BOX 771 203, EAGLE RIVER, AK 99577 - PHONE: (907) B54-91 1 5 PAGE 1 OF 3
AK BUILT CONSTRUCTION DESIGN7 LLC
GENERAL CONTRACTING - ENGINEERING - PROJECT ADMINISTRATION
Designed Length: 60 feet
Designed Field Area: 300 square feet
Maximum Excavation Depth (from existing ground) Allowed: 2.4 feet
Replacement disposal site
The subject property has no previous on -site septic systems. A replacement site has been designed for
this property that meets the requirements and soils investigation at the time of this application. A reserve
field of equal capacity is shown in the plans. The replacement system is a wide trench system with sand
filter. Coordinate field design with any future developments not known at this time.
# Bedrooms: 2
Daily Design Flow: 300 gallons/day
Tank Size: 1,000 gallons
Percolation Rate: 2.25 minutes/inch*
Soil Rating: 1.0 gallons/day/square feet
Field Area Required: 300 square feet
System Type: Wide Trench System
Width: 5 feet
Minimum Length: 60 feet
Designed Length: 60 feet
Designed Field Area: 300 square feet
Maximum Excavation Depth (from existing ground) Allowed: 2 feet
*Percolation rate is from TH-02. The reserve field is located adjacent to TH-03. TH-03 soil profile and
characteristics mirror TH-02 soil profile and characteristics.
Existing disposal site
There is no existing disposal sites located on the subject parcel. Neighboring parcels with existing disposal
sites do not impact the subject parcel and the proposed system will not negatively impact neighboring
parcels.
Drainage
There is no surface water located within 100' of the designed system.
Topography
The designed system is in the east corner of the subject property. The surrounding property slopes from
northeast to southwest. Steep slopes exist in the vicinity of the designed system, as shown in the plans.
The proposed wide trench system is installed on a slope greater than twenty-five percent, but less than
forty-six percent. Vertical separation distances below the disposal field are measured from the bottom of
the sewer rock at the up -gradient side. The proposed wide trench does not exceed sixty inches in width.
Any disturbed vegetation within fifty feet down -gradient of the proposed system will require erosion
control vegetation or an approved equal. The proposed distribution pipe invert is less than thirty-six inches
below the top of the natural organic layer, as measured on the downhill side of the excavation so a MOA
filter sand layer is detailed in the plans that extends to at least thirty-six inches below the top of the native
PO Box 771 203, EAGLE RIVER, AK 99577 -PHONE: (907) B54-91 1 5 PAGE 2 OF 3
AK BUILT CONSTRUCTION & DESICN9 LLC
GENERAL CONTRACTING -ENGINEERING - PROJECT ADMINISTRATION
organic layer. The proposed wide trench system is a minimum of one -hundred feet up -gradient from any
slope exceeding forty-six percent.
The designed system does not have probable adverse impacts to adjacent properties.
If you have any questions, please contact me.
Sincerely,
Robert Colles, PE
AK Built Construction & Design, LLC
Project Manager/Managing Member
907-854-9115
rlcolies@akbuilt.net
M
TH
Robert Callas, PE
c > No. CE-163 r -9
PO BOX 771203, EAGLE RIVER, AK 99577 - PHONE: (907) B54-91 1 5 PAGE 3 OF 3
5' x 60' WIDE TRENCH WITH SAND FILTER,
RESERVE FIELD
ALTERNATIVE TANK LOCATION MUST BE USED
WITH ALTERNATIVE PROPOSED WELL SITE
�5' x 30' WIDE TRENCH WITH SAND FILTER
i
CLEAN OUT AT START AND END OF FIELD LINE
MONITOR TUBE AT FIELD JOINTS AND END
10,
\ FILL LIMITS, TOPSOIL AND SEED FINAL SITE GRADING
V x 30' WIDE TRENCH WITH SAND FILTER
/
i
i
DOWN GRADIENT FLOW PATH, 157' TO PROPERTY LINE
i
�- MAINTAIN NATURAL VEGETATION WITHIN 50' DOWN GRADIENT OF DISPOSAL FIELD.
STABILIZE DISTURBED SLOPES WITH VEGETATION OR EROSION CONTROL MEASURES.
i- STEEP SLOPES IN EXCESS OF 46%, TYP
NOTES: /
/ 1. THE EXISTING LOT IS VACANT. ONSITE COMPONENTS ARE DESIGNED
/ BASED UPON PROPERTY OWNER PROVIDED INFORMATION. SITE
/ GRADING IS SUBJECT TO CHANGE AND VILL REQUIRE NOTIFICATION
/ TO THE ENGINEER TO VERIFY SYSTEM LAYOUT PRIOR TO
CONSTRUCTION.
EKLUND #1 BLOCK 3 LOT3 IS VACANT. EKLUND #1 BLOCK 4 LOT 2, LOT
4, AND LOT 13 ARE VACANT.
EKLUND #1 BLOCK 4 LOT 11 PRIVATE WELL IS LOCATED TO THE
NORTHEAST.
AK BUILT
CONSTRUCTION
& DESIGN
AK BUILT
CONSTRUCTION & DESIGN, LLC
PO BOX 771203
EAGLE RIVER, AK 99577
(907)654-9115
CERTIFICATE OF AUTHORIZATION
#204451
c`1
♦—
0 >
� � o
O D o
U o
0 Y z
J
F-
c�
ED C) ° 0
<[ z s
J m
W
k
......... /
.ROBERT COLLES, PE:
N°. CE•163739 .•�,`�//
,'��F9F�PN0'FE5516NP-��"��
SHEET TITLE:
SITE PLAN
DATE:
10/1912024
1 of 3
SYSTEM DESIGN:
1. DESIGNED SYSTEM IS FOR EKLUND #1 BLOCK 4 LOT 3. MUNICIPALITY OF ANCHORAGE (MOA) PARCEL ID
5053119000.
2. DESIGNED SYSTEM WILL SERVE A PROPOSED 2-BEDROOM, SINGLE FAMILY HOME.
3. THREE TEST HOLES WERE EXCAVATED TO COLLECT SOIL, PERCOLATION, AND GROUND WATER DATA FOR
THE DESIGNED SYSTEM.
4. SEPTIC TANK CAPACITY IS A MINIMUM OF 1,000-GALLONS PLUS 250-GALLONS FOR EACH BEDROOM OVER
THREE.
4.1. SEPTIC TANK SHALL BE A 1,000-GALLON CAPACITY TANK. A STEP TANK SHALL HAVE AN ADDITIONAL
250-GALLON OF CAPACITY.
5. DISPOSAL FIELDS SHALL BE DESIGNED TO ACCEPT 150-GALLONS OF WASTEWATER PER BEDROOM PER
DAY.
5.1. DESIGN FLOW = 150 GPD/BDRM x 2 BDRM = 300 GPD.
6. THE MINIMUM EFFECTIVE ABSORPTION AREA OF A DISPOSAL FIELD SHALL BE CALCULATED USING THE
WASTEWATER APPLICATION RATE CORRESPONDING TO THE PERCOLATION RATE IN ANCHORAGE
MUNICIPAL CODE (AMC) 15.65 TABLE 2.
6.1. PERCOLATION RATE = 2.25 MIN/IN.
6.2. APPLICATION RATE = 1.0 GPD/SF (PER AMC 15.65 TABLE 2) FOR A WIDE TRENCH OVER FILTER SAND.
6.3. MINIMUM EFFECTIVE ABSORPTION AREA = 300 GPD / 1.0 GPD/SF = 300 SF
7. DISPOSAL FIELD SHALL BE A WIDE TRENCH.
7.1. TRENCH WIDTH (W) = 5 FT
7.2. EFFECTIVE DEPTH (D) = 0.5 FT
7.3. SIZING FACTOR = 1.0
7.4. MINIMUM FIELD LENGTH (L) = (IABSORPTION AREA / W) x SIZE FACTOR) = (I300 SF / 5 FT] x 1.0) = 60 FT
7.5. MINIMUM FIELD SIZE IS 5-FEET WIDE AND 60-FEET LONG. USE TWO 30-FOOT LONG TRENCHES.
7.6. MAXIMUM EXCAVATION DEPTH ALLOWED IS 2.4-FEET.
MATERIALS SPECIFICATIONS:
1. WASTEWATER DISPOSAL SYSTEM COMPONENTS AND MATERIALS SHALL BE APPROVED BY THE MOA IN
ACCORDANCE WITH THE CURRENT EDITION OF MOA'S PUBLICATION "STANDARDS AND SPECIFICATIONS
FOR COMPONENT PARTS AND MATERIALS USED IN CONSTRUCTION OF ON -SITE WASTEWATER DISPOSAL
SYSTEMS".
2. COMPONENTS INCIDENTAL TO THE SEPTIC SYSTEM INCLUDING BUT NOT LIMITED TO PIPING, FITTINGS,
PUMPS AND VALVES THAT ARE LISTED OR LABELED BY A MOA APPROVED ACCREDITED THIRD PARTY
LISTING AGENCY FOR THE INTENDED USE DO NOT REQUIRE THE MOA SUBMITTAUAPPROVAL PROCESS.
3. SEPTIC TANKS SHALL BE CONSTRUCTED FROM DURABLE, CORROSION -RESISTANT MATERIALS, INCLUDING
CONCRETE, FIBERGLASS, OR PLASTIC. SEPTIC TANKS CONSTRUCTED FROM STEEL SHALL BE COATED ON
BOTH THE INTERIOR AND EXTERIOR WITH AN APPROVED POLYURETHANE LINING OR SUPERIOR MATERIAL.
4. ALL SEPTIC TANKS SHALL BE FITTED WITH WATERTIGHT COUPLINGS, APPROVED BY MOA, AT THE
PUMP -OUT ATTACHMENTS AND ON THE INLET AND OUTLET OF THE TANK.
5. A SEPTIC TANK SHALL HAVE A 20" MINIMUM DIAMETER MANWAY RISER SERVING THE FIRST
COMPARTMENT. THE RISER, INCLUDING THE COVER, SHALL BE INSULATED WITH 4" MINIMUM INSULATION
EXTENDING 48" BELOW GRADE OR TO THE TANK INSULATION. THE INSULATION SHALL BE OF AN APPROVED
TYPE SUITABLE FOR BELOW GRADE APPLICATIONS. EXPOSED INSULATION ABOVE GRADE SHALL BE
PROTECTED FROM UV DAMAGE. THE RISER LID SHALL BE SECURED TO PREVENT UNINTENDED ACCESS.
6. PIPE AND FITTINGS SHALL BE IN ACCORDANCE WITH NOTE 1 AND "PIPE AND FITTINGS MATERIAL" TABLE.
7. PIPES USED IN GRAVITY DISPOSAL SYSTEMS SHALL BE 4" IN DIAMETER.
8. CLEAN OUTS SHALL BE LONG SWEEP.
9. SEWER ROCK/DRAIN ROCK SHALL BE COARSE, WASHED AGGREGATED THAT MEASURES)/2" TO 2" IN
DIAMETER WITH NO MORE THAN 1 % PASSING THE No. 200 SIEVE.
10. BEDDING MATERIAL FOR SEPTIC TANKS SHALL BE PER MANUFACTURER'S REQUIREMENTS.
11. FILTER FABRIC USED AS A SILT BARRIER IN THE CONSTRUCTION OF ABSORPTION FIELDS SHALL BE A
PERMEABLE GEOTEXTILE APPROVED FOR THE APPLICATION.
12. INSULATION USED IN THE CONSTRUCTION OF SEPTIC SYSTEMS FOR THE PURPOSES OF FREEZE
PROTECTION OF DISPOSAL FIELDS AND SEPTIC SYSTEM COMPONENTS SHALL BE MINIMUM TYPE IV
EXTRUDED OR EXPANDED POLYSTYRENE, 25 PSI COMPRESSIVE STRENGTH.
CONSTRUCTION SPECIFICATIONS:
1. SEPARATION DISTANCES AS IDENTIFIED IN THE "SEPARATION DISTANCES" TABLE SHALL BE MAINTAINED.
NOTIFY THE ENGINEER OF DISCOVERIES MADE DURING CONSTRUCTION THAT IMPACT SEPARATION
DISTANCE REQUIREMENTS.
2. FLAG AND SURVEY ALL PROPERTY LINES, WELL RADII, AND EXISTING FIELD SEPARATIONS PRIOR TO START
OF CONSTRUCTION.
3. LAYOUT ALL FIELD COMPONENTS AND LOCATIONS PRIOR TO START OF CONSTRUCTION. NOTIFY THE
ENGINEER IF CONFLICTS EXIST.
4. GROUNDWATER MONITOR TUBES SHALL REMAIN IN PLACE UNTIL CONSTRUCTION BEGINS. ABANDON
GROUNDWATER MONITOR TUBES BY CUTTING ONE FOOT BELOW GRADE AND ABANDON IN PLACE. IF THE
GROUNDWATER MONITOR TUBE IS WITHIN FIVE FEET OF THE DISPOSAL FIELD, REMOVE THE
GROUNDWATER MONITOR TUBE IN ITS ENTIRETY.
5. TANKS WITH TWO TO FOUR FEET OF COVER SHALL BE INSULATED WITH A MINIMUM OF 2" OF APPROVED
INSULATION PLACED IMMEDIATELY ABOVE THE TOP OF THE TANK. TANKS SHALL NOT HAVE LESS THAN
TWO FEET OF COVER.
6. A SEPTIC TANK SUBJECT TO BUOYANCY FORCES SHALL BE ANCHORED OR BALLASTED AS REQUIRED TO
PREVENT FLOTATION REGARDLESS OF THE LIQUID LEVEL IN THE TANK.
7. A SEPTIC TANK SHALL HAVE A 4" MINIMUM STAND PIPE PROVIDING ACCESS TO OTHER COMPARTMENTS
NOT SERVED BY THE MANWAY RISER.
8. PROVIDE AIR TIGHT CAPS ON ALL CLEAN OUTS AND MONITORING TUBES.
9. PROVIDE A BUILDING CLEAN OUT INSTALLED ONE TO FOUR FEET FROM THE BUILDING FOUNDATION.
10. A DOUBLE CLEAN OUT SHALL BE PROVIDED WITHIN TEN FEET OF THE SEPTIC TANK OUTLET. THE
OPPOSING CLEAN OUTS SHALL BE ORIENTED SUCH THAT THE CLEAN OUT CLOSEST TO THE TANK SHALL
BE TO CLEAN THE LINE AWAY FROM THE SEPTIC TANK, AND THE CLEAN OUT FURTHEST FROM THE TANK
SHALL BE ORIENTED TO ALLOW CLEANING TOWARD THE SEPTIC TANK, THE CLEANOUTS SHALL BE
LOCATED ON UNDISTURBED SOIL. A PRESSURE SYSTEM DOES NOT REQUIRE A DOUBLE CLEAN OUT.
11. SINGLE SEGMENTS OF SUBSURFACE DISPOSAL FIELDS SHALL NOT EXCEED 100 FEET IN LENGTH.
12. THE LONG AXIS OF A DISPOSAL FIELD SHALL FOLLOW THE CONTOURS OF THE ORIGINAL GROUND.
13. THE HORIZONTAL SEPARATION DISTANCE BETWEEN THE CLOSEST EDGES OF WORKING OR
DECOMMISSIONED SUBSURFACE DISPOSAL FIELDS, OR SEGMENTS OF SUBSURFACE DISPOSAL FIELDS,
SHALL BE AT LEAST TWICE THE DEPTH OF THE DRAIN ROCK BELOW THE LEVEL OF THE DRAINPIPE, BUT
NOT LESS THAN SIX FEET.
14. THE BOTTOM OF THE TRENCH SHALL BE LEVEL WITHIN 4". THE BOTTOM OF A VIDE TRENCH OR BED
DISPOSAL FIELD SHALL BE LEVEL WITHIN 2" BEFORE PLACEMENT OF DRAIN ROCK.
15. AFTER EXCAVATION HAS EXPOSED THE DESIGNATED INFILTRATIVE SURFACE, ANY NATIVE SOIL THAT IS
SMEARED SHALL BE SCARIFIED TO IMPROVE ITS POROSITY BEFORE PLACEMENT OF DRAIN ROCK.
16. PERFORATED DISTRIBUTION PIPE USED IN A SUBSURFACE DISPOSAL FIELD SHALL BE LAID LEVEL AND
BEDDED WITH DRAIN ROCK EXTENDING A MINIMUM OF 2" ABOVE THE TOP OF THE DISTRIBUTION PIPE, AND
LEVEL ACROSS THE ENTIRE WIDTH OF THE DRAIN FIELD.
17. NON -PRESSURIZED SUBSURFACE DISPOSAL FIELD PIPING SHALL HAVE A 4" DIAMETER CLEAN OUT
CONNECTED TO BOTH ENDS OF EACH PERFORATED SEGMENT. CLEANOUTS WITHIN 20 FEET AND IN LINE
WITH THE DOUBLE CLEAN OUT DOWNSTREAM OF THE SEPTIC TANK MAY BE OMITTED.
18. AT LEAST ONE 4" DIAMETER MONITORING TUBE SHALL BE INSTALLED IN EACH SEPARATE DISPOSAL FIELD
SEGMENT TO ALLOW MEASUREMENT OF THE FLUID LEVEL IN THE DISPOSAL FIELD. MONITOR TUBES SHALL
NOT BE CONNECTED TO THE DISTRIBUTION PIPE NETWORK. THE PORTION OF A MONITOR TUBE
EXTENDING DOWN FROM THE LEVEL OF THE HORIZONTAL DISTRIBUTION PIPES TO THE BOTTOM OF THE
DRAIN ROCK SHALL BE PERFORATED. THE PORTION OF THE MONITOR TUBE ABOVE THE HORIZONTAL
DISTRIBUTION PIPES SHALL BE NON -PERFORATED. MONITOR TUBES SHALL BE LOCATED AT ALL ANGLE
POINTS OF DISPOSAL FIELDS TO MARK THE LOCATION OF THE ABSORPTIONS SYSTEM. PRESSURIZED
TRENCH DISPOSAL FIELDS THAT DO NOT HAVE CLEAN OUT PIPES SHALL HAVE A MONITOR TUBE WITHIN
ONE FOOT OF EACH END OF INDIVIDUAL TRENCH SEGMENTS. PRESSURIZED BED DISPOSAL FIELDS THAT
DO NOT HAVE CLEAN OUT PIPES SHALL HAVE A MONITORING TUBE WITHIN ONE FOOT OF EACH CORNER
OF THE BED.
19. AN APPROVED PERMEABLE GEOTEXTILE SILT BARRIER SHALL BE INSTALLED COVERING THE ENTIRE TOP
SURFACE OF THE DRAIN ROCK PRIOR TO BACKFILL.
20. THE DISPOSAL FIELD COVER SHALL BE A MINIMUM OF TWO FEET DEEP, OVER THE TOP OF THE DRAIN
ROCK. IF THE DISPOSAL FIELD COVER IS LESS THAN THREE FEET, THE DISPOSAL FIELD SHALL BE
INSULATED WITH 2" OF APPROVED RIGID BOARD INSULATION. MINIMUM SOIL COVER OVER THE INSULATION
SHALL BE ONE FOOT.
21. THE FINISH GRADE OVER A SUBSURFACE DISPOSAL FIELD SHALL BE MOUNDED A MINIMUM OF 6" ABOVE
ADJACENT GROUND TO PREVENT THE FORMATION OF A DEPRESSION AFTER THE BACKFILL HAS SETTLED.
22. UPON COMPLETION OF CONSTRUCTION ALL CLEAN OUTS AND MONITOR TUBES SHALL BE ABOVE FINAL
GRADE A MINIMUM OF TWO FEET, A MAXIMUM OF 4 FEET, BE WATER TIGHT, AND LOCATED BY SWING -TIE
MEASUREMENTS TO ALLOW YEAR-ROUND LOCATION AND ACCESS.
PIPE AND FITTINGS MATERIAL
PIPE TYPE OR ASTM
DESIGNATION
APPROVED AS PERFORATED
DISPOSAL FIELD PIPE OR
SOLID COLLECTOR PIPE
APPROVED AS CLEAN
OUT OR STANDPIPE
CAST IRON "
YES
YES
ASTM D3034 (PVC)
YES
YES
ASTM F789 (PVC)
YES
YES
ASTM D1785(PVC)"
YES
YES
ASTM D2665 (PVC)'-
YES
YES
ASTM D2751 (ABS)
YES
NO`
ASTM D2661 (ABS)"
YES
YES
ASTM F628 (ABS)"
YES
YES
ASTM F810 (HOPE)
YES
NO
D2751 MAY BE APPROVED AS STANDPIPE MATERIAL IF THE MINIMUM WALL THICKNESS
IS 0.18", SDR 23.5.
UNDERGROUND DWV PIPE MATERIALS LISTED IN UPC TABLE 701.1 (2012).
SEPARATION DISTANCES
SOIL ABSORPTION
SEPTIC TANK
SYSTEM
PROPERTY LINE
5 FEET
10 FEET
WATER MAIN/WATER
10 FEET
10 FEET
SERVICE LINE
BUILDING FOUNDATION
10 FEET
10 FEET
DECKS/STAIRS >30" ABOVE
GRADE
5 FEET
10 FEET
SURFACE WATER
100 FEET
100 FEET
PRIVATE WELL
100 FEET
100 FEET
PUBLIC WATER SUPPLY
SEE 18 AAC 80
SEE 18 AAC 80
>25% SLOPE >19 TALL
50 FEET
>25 % SLOPE <10' TALL
25 FEET
GREATER OF 10 FEET OR
SUBSURFACE DRAIN
TWO TIMES GRAVEL DEPTH
GREATER OF 6 FEET OR TWO
SOIL ABSORPTION SYSTEM
TIMES GRAVEL DEPTH
WATER TABLE
4 FEET
IMPERMEABLE LAYER
6 FEET
1. AN ON -SITE WASTEWATER DISPOSAL SYSTEM SHALL NOT BE BACKFILLED,
COMPLETED, OR USED UNTIL THE ENGINEER HAS INSPECTED AND TAKES NO
EXCEPTION TO THE INSTALLATION.
2. NOTIFY THE ENGINEER 48 HOURS IN ADVANCE OF ANTICIPATED CONSTRUCTION.
3. THE ENGINEER WILL MEET WITH THE CONTRACTOR PRIOR TO CONSTRUCTION TO
DISCUSS THE FOLLOWING,
3.1. PRECONSTRUCTION MEETING TO DISCUSS CONSTRUCTION PROCEDURES AND
DESIGN REQUIREMENTS.
3.2. VERIFY SITE CONDITIONS CONFORM TO THE DESIGN PLANS AND PERMIT.
3.3. VERIFY THE PROJECT LAYOUT CONFORMS TO THE DESIGN PLANS AND PERMIT.
4. THE ENGINEER SHALL PERFORM A BOTTOM OF HOLES INSPECTION FOR THE SEPTIC
TANK AND DISPOSAL FIELD.
5. THE DISPOSAL FIELD REQUIRES THE FOLLOWING INSPECTIONS,
5.1. AFTER EXCAVATION OF ALL NATIVE MATERIAL HAS BEEN COMPLETED, BUT PRIOR
TO PLACEMENT OF FILTER SAND AND/OR DRAIN ROCK. THE PURPOSE OF THIS
INSPECTION IS TO ALLOW VERIFICATION THAT THE NATIVE MATERIAL CONFORMS
TO THE SOILS LOG AND THE EXCAVATION IS TO THE CORRECT DEPTH.
5.2. AFTER THE PLACEMENT OF FILTER SAND, IF UTILIZED.
5.3. AFTER THE PLACEMENT OF DRAIN ROCK, AND INSTALLATIONS OF DISTRIBUTION
LINES, CLEAN OUTS, AND MONITOR TUBES, BUT PRIOR TO PLACEMENT OF
INSULATION, SILT BARRIER, OR BACKFILL.
5.4. AFTER THE SYSTEM HAS BEEN BACKFILLED TO VERIFY FINAL GRADING AND THE
LOCATION OF ALL STAND PIPES.
6. THE SEPTIC TANK REQUIRES THE FOLLOWING INSPECTIONS,
6.1. AFTER THE TANK IS SET IN PLACE WITH DISTRIBUTION PIPES AND CLEAN OUTS
INSTALLED, BUT PRIOR TO BACKFILL.
6.2. AFTER THE TANK HAS BEEN BACKFILLED TO VERIFY FINAL GRADING, ELECTRICAL
EQUIPMENT INSTALLATION, AND THE LOCATION OF ALL STAND PIPES.
IF -11
AK BUILT
CONSTRUCTION
& DESIGN
AK BUILT
CONSTRUCTION & DESIGN, LLC
PO BOX 771203
EAGLE RIVER, AK 99577
(907)854-9115
CERTIFICATE OF AUTHORIZATION
#204451
M
O > _
J O
O Y o
U � o
O Y z
J
co 0
CD
Q z OJ O
a
(o
J ro
Y v
W
C
as��l
1H
SHEET TITLE:
SPECIFICATIONS
DATE:
10119/2024
2 0F 3
605
20"0 MIN. INSULATED
FOUNDATION
RISER
CLEAN OUT
Wi-
600 - - - -
599
-
_---
598
597
` ---
--
595
- - -
i ------
i
PIPE TABLE
NAME
SIZE
LENGTH
SLOPE
INLET LOCATION
INLET ELEV
OUTLET LOCATION
OUTLET ELEV
S1
4"
14.00'
2.00%
N:2653165.5703
595.68
N:2653157.3192
595.40
E:1760044.1446
E1760055A547
N:2653153.7951
N:2653137.1919
S2
4"
28.17'
2.00 %
595.23
594.67
E:1760060.2852
E:1760083.0436
N:2653137.1919
N:2653141.0508
S3
4"
13.02'
2.00%
594.67
594.41
E:1760083.0436
E:1760095.4826
N:2653141.0508
N:2653142.3371
S4
4"
4.34'
2.00%
E:1760095.4826
594.41
E:1760099.6290
594.32
N:2653142.3371
N:2653145.7444
S5
4"
11.50,
0.00%
E:1760099.6290
594.32
E:1760110.6121
594.32
N:2653145.7444
N:2653139.6261
S6
4"
17.50'
0.00%
E:1760110.6121
594.32
E:1760127.0083
594.32
N:2653141.0508
N:2653130.5448
S7
4"
11.00,
31.66%
E:1760095.4826
594.41
E:1760098.7419
590.93
N:2653130.5448
N:2653128.5341
S8
4"
6.79'
0.00%
E:1760098.7419
590.93
E:1760092.2607
590.93
N:2653130.5448
N:2653134.1257
S9
4"
12.09'
0.00%
E:1760098.7419
590.93
E:1760110,2847
590.93
N:2653134.1257
N:2653130.9343
S10
4"
9.13'
0.00%
590.93
590.93
E:1760110.2847
E:1760118.8373
FYTi9[f7JA_',II
CLEAN OUT ri, I ! I ORIGINAL GROUND I 605
sa
DOUBLE CLEAN OUT I MONITOR TUBE sa3
FINISH GRADE 2" INSULATION BOARD CLEAN OUT
----�- I MONITOR TUBE
--- --- - -- --- --- ---- - - - CLEAN OUT --- --- - SEPARATION FABRIC --- --- euu
598
596
o S3:: L� S4 2.4n S5 �695
593
592
-- - i --- -- --- --- - GW W/ +1' ADJUSTMENT --Y----- --- -- 6" SEPTIC ROCK -
590
j 9 GW ON 916/24 24" MOA SAND FILTER 5"
1,000.GALLON POLY TANK s�
587
585
20 0+25 0+30 0+35 0+40 0+45 0+50 0+55 0+60 0+65 0+70 0+75 0+80 0+85 0+90 0+95 1+00 1#686.16
NOTES: SEPTIC PROFILE - NORTH TRENCH
1. PIPE LENGTHS ARE ESTIMATED AND PROVIDED FOR CONTRACTOR REFERENCE
600
ONLY. CONTRACTOR TO VERIFY MATERIAL QUANTITIES.
59'
598
2. UNIFORMLY GRADE SITE UPON COMPLETION OF SEPTIC SYSTEM
597
INSTALLATION. MOUND MATERIAL TO ALLOW FOR SETTLEMENT OF DISTURBED
sss
59
AREAS AND TO MEET MINIMUM SOIL COVER REQUIREMENTS. GRADE SLOPES
sw
AT 2H:1V. FINISH SLOPES ARE TO BE STABILIZED AGAINST EROSION BY
593
UTILIZATION OF EROSION CONTROL MATTING OR HYDROSEED INCORPORATING
592
A TACKIFIER.
591
590
3. TOPSOIL AND SEED DISTURBED AREAS WITH A SEED MIX APPROPRIATE FOR
589
THE SITE.
sae
587
4. COORDINATE HOUSE SITE GRADING WITH HOME CONSTRUCTION. ENSUsm
RE
585
MONITOR TUBE
CLEAN OUT
2" INSULATION BOARD
CLEAN OUT
MONITOR TUBE
FINISH GRADE
I SEPARATION FABRIC
__-__
_- --1 - ---- MONITOR TUBE -
SB
I ..- . S9
S10
SII'
�
GW W/+1' 6" SEPTIC ROCK
�
L ADJUSTMENT 24" MOA SAND FILTER
SUFFICIENT SOIL COVER OVER BUILDING SEWER. USE INSULATION WHERE 2+00
SOIL COVER IS LESS THAN 4-FEET. A MINIMUM OF 2-FEET OF SOIL COVER IS
REQUIRED.
5. AS HOME SITE GRADING IS DEVELOPED, NOTIFY THE ENGINEER IF A SYSTEM
DESIGN MODIFICATION IS NECESSARY. THIS MAY INVOLVE THE INSTALL OF A
STEP TANK IN ORDER TO DELIVER EFFLUENT TO THE SOIL ABSORPTION FIELD.
600
599
598
597
596
595
S93
$92
591
590
ses
587
sm
585
2+05 2+10 2+15 2+20 2+25 2+30 2+35 2+40 2+45 2+48
SEPTIC PROFILE - SOUTH TRENCH
IF
AK Buis..■
CONSTRUCTION
& DESIGN
AK BUILT
CONSTRUCTION & DESIGN, LLC
PO BOX 771203
EAGLE RIVER, AK 99577
(907)854-9115
CERTIFICATE OF AUTHORIZATION
#204451
O >
I.-
J
O Y = Cl
U o
U) O OY 2
Lu
m a
m o ° 0
Q = a
J M
Y v
W
'tROFofR cc/ou.N���T�/
�� OfESS
SHEET TITLE:
SEPTIC SYSTEM
DATE:
10/19/2024
3 OF :3]
TH
TH
ABIGAIL SCOTT
EKLUND #1 BLK 1 LT 3
8/9/24
SEC. 32, T14N, R1E, SM
ROBERT COLLES, PE
8/9/24
TH-01
TH-02
TH-01 CHARACTERISTICS REPRESENTED THIS SHEET. PERCOLATION
X
X
7'
YES
AK BUILT
OL
GM
BOH
Robert Colles, PE
No. CE-163739REGI STEREDPROFES S I O N A L E N GINEER
9/9/2024
TEST NOT PERFORMED IN THIS HOLE. GROUND WATER MONITORED IN TH-02.
GP W/SAND
Municipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COMPLIANCE
OSP241297, Curtis Townsend, 09/26/24
TH
TH
ROBERT COLLES, PE
8/9/24
TH-02 CHARACTERISTICS REPRESENTED THIS SHEET.
X
X
N/A
NO
AK BUILT
OL
BOH
Robert Colles, PE
No. CE-163739REGI STEREDPROFES S I O N A L E N GINEER
9/9/2024
7.5'
9/6/24
GM
1
2
3
4
5
8/9/24
8/9/24
8/9/24
8/9/24
8/9/24
2.25 6"
2.5 3.5
12:22 PM <0:30 DRY -
12:33 PM 10:00 20 7 8" 5 1 8"
12:45 PM 10:00 20 3 4" 5"
12:57 PM 10:00 20 5 8" 4 7 8"
1:10 PM 10:00 20 3 8" 4 5 8"
1:21 PM 10:00 20 1 4" 4 1 2"6 8/9/24
1:36 PM 10:00 20 3 16" 4 7 16"7 8/9/24
TH-01
TH-02
ABIGAIL SCOTT
EKLUND #1 BLK 1 LT 3
8/9/24
SEC. 32, T14N, R1E, SM
Municipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COMPLIANCE
OSP241297, Curtis Townsend, 09/26/24
Municipality of Anchorage F�S SEA j
41 �_-
Development Services Department co - .
liol
'��R`S SEA
On -Site Water and Wastewater Section •49 TM
0 4700 Elmore St. —
P.O. Box 196650 Anchorage, AK 99519-6650
www.muni.org/onsite ...... ...... ....
(907) 343-7904 Robert Colles, PE
No, C -163739
• Soils Log - Percolation Test 'I "-&'Fo
Performed For: ABIGAIL SCOTT Date Performed:
Legal Description: EKLUND #1 BLK 1 LT 3 —Township, Range, Section: SEC. 32, T1 4N, R1 E, SM
Slope Site Plan
1 -
2-
3-
4-
5-
6-
7-
8-
9-
10-
11-
12-
13-
14-
15-
16-
17-
18-
19-
20-
COMMENTS
OL
GIVI
WAS GROUND WATER
ENCOUNTERED? N 0
s
IF YES, AT WHAT DEPTH? N/A L
Depth to Water After 0P
Monitoring? NONE E
Date10/11/24
Reading Date Gross Time Net Time Depth to Water Net Drop
PERCOLATION RATE (minutesAnch) PERC HOLE DIAMETER
TEST RUN BETWEEN FT AND FT
=_RISTICS REPRESENTED THIS SHEET. PERC
PERFORMED BY: AK BUILT i ROBERT COLLES, PECERTIFY THAT THIS TEST WAS
PERFORMED IN ACCORDANCE WITH ALLSTATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. DATE: 10/4/24
21
a
