HomeMy WebLinkAboutAUTUMN RIDGE LT 9Autumn Ridge
Lot 9
#015-054-12
Municipality of Anchorage Page 1 of 3
Development Services Department
On -Site Water and Wastewater Program
4700 South Bragaw Street
P.O. Boz 196650 Anchorage, AK 99519-6650
www.d.anchorage.ak.us (907) 343-7904
ON-SITE WASTEWATER DISPOSAL SYSTEM AND/OR WELL INSPECTION REPORT
Permit Number. SWO50135 PID Number. 015-054-12
trema
Northwood Homes Inc.
Wastewater System: New
Addtefa,.
P.O. Box 92301 Anchors a AK 99509
ABSORPTION FIELD
Phone marberCot B.&Mna5'
694-5890 Five 5
Wide Trench
LEGAL DESCRIPTION
SW�a
T.W Data,"rn orynr tired.
1.2 GPDtF?
5 Ft.
111 k Lot BWOviMon.
9
DsPm bPW.mrnft. ryno grade
cus dspin"rwadtpys
Autumn Ride
1 Ft.
4 Ft
TO -WW Rana. Sactrorc
Fr sated "ww rgri grads
Crrwt L -F
2.4 Ft.
64 Ft.
Well: New
x. "w
141 W a tete
Dance ae..rt lvra
5 Ft.
1
FL
Dlwilreron (Pmals.A B. C)
7" D+pm: C,.sdb
otel."wrpum raa
p. W
Private
221 Ft. 221 Ft
640 Ft'
ASTM 3034 PVC
Dniew
Alpine
Data On1w str.a water Lw"
1119105 191 Ft
inale1w
Sanders & Sanders
s
612112005
Yr
10 CP
P"ro set«.
Ft.
C".V Aeore r vt.m
>2 Ft
TANK
SEPARATION DISTANCES
0 Septic ❑ Holding ❑ S.T.E.P. ❑ Other.
To
Septic
Absorption
LIR
Holding
udKlPrNete
From
Tank
Field
Station
Tank
sewerune
AnehorageTank
1,500
well
>100,
>100'
NIA
NIA
>25'
Steel
Two (2)
at,t.oaw.ter
>100'
>100'
WA
NIA
LIFT STATION — NONE ON LOT
w lune
>5'
4'
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NIA
00
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>10,
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euteat ot.rt
None
Noted
770V """`
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arwMa
BENCH MARK
See Lot Line Vniver.r
Lower Level Finished Floor
100.0 Ft
Engineer's Stamp
wSaatga14•
.••P�t �A��♦
Inspections performed by: AH Dates: 1" 6/21105
49th' �.
2nd 6121105
Department of Health and Human Services approval
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FROM : ALPINE DRILLING
FAX NO. : 907 345 0202 Jan. 06 2006 11:34AM P1
ALPINE
DRILLING
&
ENTERPRISES
Permit Number. #SWQQ41: 5 Date of Issue: 5-054-12 Parcel Identification Number. 015.054-12
Date Started: 1-7-05 Date Completed: 11-9-05 is well located at approved permit location? ® Yes Q No
I.e;ai Description: Auturlrn Ridoe Lot 9
Property Owner Name & Address: Northwood Homes, Inc.
PO Box 92301
Borehole Data:
Depth (ft)
Method of Drilling ® air rotary cable tool
Soil Type, TtSclmess & Wetsr Strata
From
To
Casing type: ALeje
stick-up
0
2
Wall Tlucimms:,W inches
gravelly silt
2
11
Diameter: ¢ inches . Depth: 221 feet
silly sandy gravel
11
33
Liner Type:
gravelly sandysAt
33
89
Diameter. inches Depth: feet
Casiag stickup above ground: 2 feet
slit
89
111
Static water level (from ground level): 1pj_fcet
gravelly silt
111
176
Pumping level:,ZLfeet after
silt
176
189
3 hours pumping jQ gpm
sandy gravelly 3111
189
203
Recovery Rate: jQ gpm
gravelly silt
203
215
Method of Testing: a r RR
water sand 6 gravel
215
221
Well Intake Opening Type:
® Open End ❑ Open Hole
❑ Screened Start feet Stopped feet
❑ Perforations Start feet Stoppod feet
Grout Type: bentonlre granules Volume: Lkg
Depth: Start 2 feet Stopped 2 feet
Pump: Intake Depth feet
Pump Size Brand Name
Well Disinfected Upon Completion? ® Yea ❑ No
Method of Disinfection: chlorine Tablets
Comments:
Well Driller. Alpine; Drilling & Enterprises
PO Box 110496
Anchorage AK 99511
Atteation: The well driller shall provide a well log to the property owner within 30 days of completion and the property
MUNICIPALITY OF ANCHORAGE
Development Services Department
Onsite 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: SWO50135
Legal Description: AUTUMN RIDGE SUBDIVISION LOT 9
Design Engineer: 0014 Anderson Engineering
Owner Name: NORTHWOOD HOMES, INC
Owner Address: 9457 NICKELL CIRCLE 44
ANCHORAGE. AK 99517 -
Date Issued: May 23, 2005
Expiration Date: May 23, 2006
Parcel ID: 015-054-12
Site Address: 9457 NICKELL CIRCLE 44
Lot Size: 41074 SQ. FT.
Total Bedrooms: 5 Permit Bedrooms: 5
This permit is for the construction of.
Q Disposal Field ❑✓ Septic Tank ❑ Holding Tank ❑ Privy ❑✓ 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.
Received By:
Issued By:
Date: 7Krllj__
Date: 2 .f
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
Parcel I.D. 015.054.12 Permit Number SW
Property owner(s) Northwood Homes, Inc. Day phone 694.5890
Mailing address (1) P.O. Box 92301 Anchorage, AK 99509
Mailing address (2) 9457 Nickell Circle 44 Zip Code
Legal description (Lot, Block & Sub'd.) Lot 9. Autumn Ridge Subdivision
Legal description (Section, Township & Range)
Lot Size 41,074 SF Acres/Sq.Ft. Number of Bedrooms Five (5)
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.
(Signature of property owner or authorized agent)
Permit Fees: P r I ZO -
Date of Payment: 6"1-0-'r Date of Payment:
Receipt Number:- t qc /H Receipt Number:
(Rev. 12/00)
ANDERSON ENGINEERING
P.O. BOX 240773
ANCHORAGE, AK 99524
522-7773 522-6779 FAX
May 4, 2005
Municipality of Anchorage
Development Services Department
On -Site Water and Wastewater Program
4700 South Bragaw Street
Anchorage, AK 99519-6650
Subject: Lot 9, Autumn Ridge Subdivision
Septic System Design and Permit Application
Impacts to Adjacent Properties
Dear Onsite Services Engineer:
The owner of Lot 9, Autumn Ridge Subdivision intends to construct a new five -bedroom
home on the lot. We are therefore requesting a permit be issued for the construction of
a new well and septic system to serve the new home. No conflicts exist with adjacent
septic systems or wells and the proposed septic system and well on this lot. The
attached Site Plan and backup documentation identify the location and configuration of
the proposed well, septic system and alternate site. The current drainage pattern is
identified on the Site Plan. The drainage pattern will be maintained after development
of this lot is complete.
Test holes recently placed on the lot indicated silty gravel with minor amounts of sand in
the area of the absorption trench and alternate site. The accepting soils were tested
and found to have a percolation rate of between 1 and 3 minutes per inch The system
is designed with an application rate of 1.2 GPD/SF. Groundwater was found in the test
holes during placement at 10' below the surface and was monitored during the ensuing
period at 10'. Our design includes the placement of a new 1,500 -gallon septic tank
along with a 63' long and by 5' wide x 4' effective depth absorption trench to collect and
treat the sewage generated in the house. The bottom of the trench will be 5' below the
surface. The distribution pipe will be 1' below the surface. A minimum of 3' of cover will
be placed atop the trench and a minimum of 4' of cover will be placed atop the new
septic tank.
The ground surface on the lot slopes at varying grades from north to south as shown on
the Site Plan with steeper slopes near the south end of the lot. The absorption trench
will be constructed parallel with the slope of the ground surface as much as possible in
Lot 9, Autumn Ridge Subdivision
May 4, 2005
Page Two
conformance with Municipal requirements. The new septic system will be constructed a
minimum of 100' from the well proposed for the lot and on adjacent lots. It will also be
constructed a minimum of 100' from any surface water in the area.
If the system is constructed in accordance with our design the following statements
apply:
The system, if constructed as designed, will have no adverse impact on the wells
in the area or those to be constructed in the future.
2. The system, if constructed as designed, will have no adverse impact on existing
septic systems in the area or those to be constructed in the future.
3. The system, if constructed as designed, will have no adverse impact on reserve
space, either surface or subsurface, on any lots located in the area.
4. The system, if constructed as designed, will have no adverse impact on drainage
patterns in the area. The current drainage pattern will be maintained.
Sincerely,
„ n
Michael E. Anderson, P.E.
Attachments
�
�*
1 49th W
MICHAEL E. ANDERSON
i No. CE-43Si .
AUTUMN RIDGE SUBDIVISION
LOT 9
41,074 Bq. 1L
(7 Z_
:U C7
C-)
rrrI
M N 89'56'04' E .7
r
10'x20' T&E
p EASEMENT
5' SNOW STORAGE EASEMENT
®'4'.
Pro sed
Oil
.•M •Baboon
. Maur
® VI
Existing fi.-377.c' O
Well p
0'
Ol
p
lopy C
IQm
CiF
1,500 Iron
b y )6. ptic ank LOT 10
LOT 8 �r
� A
50' n • S' Wd TN 60 0
x 4' f?. Depth 56 ® ?
N ACs tion Tronch
A
SAe
V
CLASS 8
WETLANDS
® S 89'53'31' W 151.52'�♦♦♦♦1
�P.....................
TRACT A i1. 4♦♦
OPEN SPACE �..... .. th ..
SITE PLAN sMICFUEL E ANDERSON: Lf t,
♦� j No, tt-uet i is
SCALE 1' = 50'
LOT 9
AUTUMN RIDGE SUBDIVISION
DESIGN FACTORS: SYSTEM REQUIREMENTS:
Five Bedroom House 5' Wide Trench System
Perc. Rate: 1.3 Min./Inch 1,500 Gallon Septic Tank
Application Rate: 1.2 GPD/SF 4' Drainfield Rock
5 Bedrooms X 150 GPD/1.2 GPD/SF(lication Rate) = 625 SF Absorption Area
625 SF15 LF (Width)• .5(Red. Factor) =-Z.5 LF Trench Length
THEREFORE: Construct a 63' Long x 5' Wide x 4' Effective Depth Absorption Trench.
Flow Line Elevation in Trench to be V Below Original Ground Surface. Total Depth to be
5' Below Existing Ground. Provide 4' Cover Over Septic Tank and 3' Cover Over
Absorption Trench.
NOTE:
6"
6"
4'0"
Natural
Backfill
5'
F—t
3' Cover or 2" Insulation
and 2' Cover
Geotextile
4" Perforated
PVC (Holes Down)
Drainfield Rock
CAL 5r WIDE TRENCH SECTIO"'
Grade Area Over Trench to Drain Away.
Minimum 6' Separation From Bedrock.
Minimum 4' Separation From Groundwater.
Minimum 100' Separation From Wells in the Area.
Minimum 100' Separation From Surface Water or Streams.
Municipality of Anchorage
Department of Health & Human Services
825 L Street, Anchorage,'AK 99502-0650
SOILS LOG - PERCOLATION TEST
Performed For. Bob Klein Date Performed:
Legal Description: Lot 9 Autumn Ridge Subdivision
1219199 '
Reading
Date. - Gross
Time
Was Groundwater
13
9
Bottom of
Encountered?'
Yes
14
If Yet, What Depth?
'. 10'
1d
\• • ••• • V•
A c1.7..--1*
-I
Ground Depth to Water
t �.
16.
r...49th... i....,.f
4
'Water After Monitoring
.10'
11
♦� :MICFwEL
Date: • '' ' .
4/22100
Reading
Date. - Gross
Time
. Net
Time
13
Net
Drop
Bottom of
10 -Dec , 2:30
Hole
14
.
.
.'..paaaa�q,
OF ��
' 5..... 4e4
15
\• • ••• • V•
A c1.7..--1*
-I
:.
t �.
16.
r...49th... i....,.f
4
2.63*,
�..... ..
�. ....................5:4r' .
. 17
♦� :MICFwEL
18
•�1 �Ybf•:•'i
6.25"..'
5
Reading
Date. - Gross
Time
. Net
Time
Depth To
Water
Net
Drop
1
10 -Dec , 2:30
2.75"
2
2:44
14
8.88"
6.13-
3
2:45
2.63*,
4
.3:00
15
8.88"
6.25"..'
5
3:01...
2.75"
6 . - .
3:16
-15
8.94"
6.19"
19
Perc..Rate: 3 MinAnch ' Perc. Hole Diameter. 6".
Test Run Between 4.5 FL and 5.5 Ft.
Comments: Percolation Cavity Presoaked Prior to Testing.
Performed By: A. Hnrals I, Mi .ha 1 E. Anderson' Certify That This Test Was Performed
In Accordance With All State and Municipal Guidelines In Effect On This Date: 1120100
Municipality of Anchorage
Department of Health & Human Services
825 L Street, Anchorage, AK 99502-0650
SOILS LOG = PERCOLATION TEST. -
Performed For:.Bob Klein r Date Performed: 1219/99
Legal Description: Lot 9. AutumngP Subdivision'
SLOPE . SITE PLAN
a to
Light Brown Was Groundwater
9 Encountered?' No
If Yes, What Depth?.
10 Depth to Water
After Monitoring None
11 Date: 1Y22/00
1.2
Reading
13
Net
Time
Trace
Net
Drop
14
10 -Dec .1:25
Cobbles �..•��•►►►4
CF •
•♦
2.5"
..
,
•••p . .............15
30
6.13"..
'
.3
1:56
2.5"
r
49th to.
4
226
'
'.
3.13"
16
'
' .'
..... ..._... N�
V0..NICNAEL L ANDERSON ]
2.25"
17
6 ' '
�•;, 'p%, No. CE -43M
• 30
5.31"
3.06".
18
Bottom of
Reading
Date Gross
Time
Net
Time
IDepthTo
lWater .' '
Net
Drop
1
10 -Dec .1:25
2.5"
2
1:55
30
6.13"..
3.63"—
.63"'3
.3
1:56
2.5"
4
226
30
5.63" .
3.13"
5
2:27
2.25"
6 ' '
2:57-1.
• 30
5.31"
3.06".
Hole '
19 Perc. Rate 10 MinJlnch Perc. Hole Diameter: 6"
Test Run Between . 4.5 Ft. and 5.5 Ft. .
Comments: Percolation Cavity Presoaked Prior to Testing.
Performed By: AA Harala I, Micha I . And rson Certify That This Test Was Performed
In Accordance With All State and Municipal Guidelines In Effect On This Date: 1/20100
Municipality of Anchorage
Department of Health & Human Services
825 L Street, Anchorage, AK 99502-0650
SOILS LOG - PERCOLATION TEST
Performed For: Bob Klein , Date Performed: 12/10/99
Legal Description: Lot 9. Autumn Ridge Subdivision
SLOPE nSITE PLAN
1 PT/OL
2
11
4
I 6
7
8
10
11
TESTHOLE
NO. 60
,
Depth To
Water -
GP
1 10 -Dec
11:08
Golden
2'
11:10
to
7"
4.5" .
3
Light Tan
2.5"
Cobbles
11:13
2 .
to 5"
Was Groundwater
5
11:14'
Encountered?
Yes .
Ground
If Yes, What Depth?
•10'
Water
Depth to Water',
4.5". '
After Monitoring
10'
Date:
1/22/00
131 Bottom of
Hole
•• 1a �.
.'����� ata'
a�
.15
.. .mac').• `•. ♦ •
16_49th
s�...�r. i..«.
17'
18 ♦♦.moi.
Reading' Date
Gross
Time
Net
Time
Depth To
Water -
Net
Drop
1 10 -Dec
11:08
: Y-5--
2'
11:10
2..
7"
4.5" .
3
11:11
2.5"
'4
11:13
2 .
7",
4.5" '
5
11:14'
•
2.25"
6
11:16
2
7":
4.5". '
19 Perc. Rate: LT 1.MinArich Perc. Hole Diameter: 6"
Test Run Between 6 Ft. and 7. Ft.
Comments: Percolation Cavity Presoaked Prior to Testing.
Performed By: A. Hara1a. I, Michael E Anderson Certify That This Test Was Performed
In Accordance With All State and Municipal Guidelines In Effect On This Date: 1/20%00
ON-SITE WASTEWATER DISPOSAL SYSTEM
CONSTRUCTION AND MATERIAL SPECIFICATIONS
SUBJECT: LOT 9, AUTUMN RIDGE SUBDIVISION
GENERAL:
The scope of this project includes the procurement and placement of a new
1,500 -gallon septic tank at the location shown on the Site Plan. Work also
includes the construction of a new 50' long X 5' wide X 4' effective depth
absorption trench at the location also shown on the Site Plan. The
distribution line in the trench will be placed at 1' below the existing ground
surface. Total depth of the trench will be 5' below the existing ground
surface. A separation distance of 100' from any well and 100' between the
septic tank and absorption trench and any surface water must also be
maintained. A minimum of 3' of fill is required over the absorption trenches
and 4' over the septic tank. In lieu of the required fill 2" of insulation and 2' of
fill may be placed.
2. Construction shall be in accordance with the approved site plan, design
drawings, Municipal Permit with any special provisions or conditions, and all
applicable State and Municipal Wastewater Disposal Regulations.
3. The Contractor shall be responsible for obtaining all underground utility
locates and for the layout of the septic system and verification of the location
of all lot lines. The Contractor must also verify the location of wells in the
area and assure that the separation distances are met.
4. Unless specifically agreed otherwise, the contractor shall be responsible for
final grading areas subsequently depressed from soil settling. Property
owner shall be responsible for revegetation of affected areas unless
specifically agreed otherwise.
5. Contractors installing wastewater disposal systems must be certified by the
Municipal Department of Health and Human Services for system installations.
Owners installing their own systems must receive prior approval from
D.H.H.S. before beginning system installation.
SEPTIC TANK INSTALLATION
A new 1,500 -gallon septic tank must be procured from an approved source
and installed at the location shown.
2. A septic tank is to be constructed by a certified septic tank manufacturer
Construction shall include two 4" cleanouts for pumping access.
Lot 9, Autumn Ridge
May 4, 2005
Page 2 of 3
3. The septic tank shall be sufficiently bedded to prevent settling or shifting of
the tank.
4. All standpipes on the septic tank shall extend a minimum of 12 inches above
final grade.
5. Tanks installed without 4' of cover shall have a minimum of 2" of direct burial
insulation.
6. A foundation cleanout shall be installed one to four feet from the building
foundation. Two cleanouts are required between the tank and the drainfield.
7. Final grading over the tank shall be such that a positive slope exists away
from the septic tank.
DRAINFIELD CONSTRUCTION:
1. The drainfield shall be constructed to the dimensions shown on the design.
The bottom of the trench shall be within 2" of level.
2. Distribution piping must be placed level with perforations down atop a level
bed of drainfield rock. Rock should then be placed over the pipe to provide a
minimum of 2" of cover.
3. A silt barrier or geotextile fabric must be placed between the drainfield rock
and the natural soil backfill.
4. Monitor tubes must be 4" in diameter and installed at the locations shown on
the design. The portion below ground must be perforated.
5. Contractor shall verify the septic tank and drainfield are a minimum 100' away
from any private water wells in the area, 150' from a Class "C" Well or 200'
from any community well.
6. Direct bury insulation must be placed over the distribution system if less than
3' of backfill depth is available. Finish grade over the trench must be
mounded to prevent settlement or depressions.
7. Grade area surrounding the absorption trench to drain away.
8. A minimum 2' of accepting soil is required below the drainfield rock for a 5'
wide trench. Contractor shall verify this condition prior to placement of the
rock. All pockets of unacceptable materials must be removed and replaced.
Lot 9, Autumn Ridge
May 4, 2005
Page 3 of 3
MATERIAL SPECIFICATIONS:
1. Septic tanks must be constructed by a Municipally approved septic tank
manufacturer.
2. The following pipe materials are approved for use in septic system
installations in the Municipality of Anchorage:
Cast Iron (perforated and solid), ASTM D3034 or P.V.C. (perforated and
solid), ASTM F810 or H.D.P.E. (perforated, but not solid) and ASTM D2662
or A.B.S. (perforated and solid).
3. Insulation shall be at least 2" thick extruded direct burial polystyrene (Dow
Chemical Co. Styrofoam HI or equal).
4. Septic tank inlets and outlets shall be fitted with watertight couplings
(Caulder, Femco, or equal).
5. A permeable geotextile fabric (Typar, Mirafi or equal) must be installed
between the final drain rock layer and the native soil layer.
6. All drain rock shall be .5" to 2.5" in diameter with less than 3% passing the
#200 sieve.
INSPECTIONS:
Municipal Ordinance requires a minimum of two inspections. These inspections
must be conducted under the supervision of a professional engineer registered
in the State of Alaska. The first inspection must be conducted after the
excavation of trenches, beds or pits and before the installation of any gravel. A
septic tank may be set in place, but may not be backfilled.
The second inspection must be conducted after the placement of the geotextile
fabric, gravel, distribution piping, standpipes, cleanouts and insulation. No
backfill should be in place at the time of inspection.
Contractor shall provide a copy of all field survey layout and construction notes
for use in preparing the certified as -built of the completed system.
ANDERSON ENGINEERING
P.O. BOX 240773
ANCHORAGE, AK 99524
522-7773 522-6779 (FAX)
MEMO
DATE: 5121/2005
TO: Joe Goodall
WITH: MoA/OnSite Water and Wastewater
FROM: Mike Anderson
SUBJECT: Lot 9, Autumn Ridge Subdivision
Septic System Construction Permit
We recently checked the monitor tube for Test Hole No.. 60 on Lot 9 and found what
appeared to be ice at the bottom to be frost. The tube has been filled with gravel and
silt to the level just below the frost level. No water was found below the ice/frost layer.
Historical data collected during the subdivision phase of the Autumn Ridge project
indicated the groundwater level was 9.5' below the surface on May 11, 2001. This
would have been the high water level of the year. We therefore believe the absorption
trench as currently designed will provide the required 4' separation from groundwater as
the total depth is 5'.
Test Hole No. 56, which is directly east of Test Hole No. 60 had groundwater at 12.1'
on May 11, 2001. Test Hole No. 57 remained dry year around. Attached is a letter to
Jim Cross, P.E. dated May 16, 2001, which confirms the groundwater level readings.
Please let me know if you have additional questions.
May 16, 2001
Municipality of Anchorage
Building Safety Division
On -Site Water and Wastewater Program
4700 S. Bragaw Street
Anchorage, AK 99507
Attention: Jim Cross, P.E.
Subject: Autumn Ridge Subdivision
S-10707
Dear Jim:
We recently completed the groundwater monitoring on the proposed Autumn Ridge
Subdivision. The monitoring was completed on May 11, which is normally the period
when groundwater is at or near its highest level. The majority of the test holes were dry
with only 16 out of 77 showing signs of water. The highest level was noted in Test Hole
No. 52 at 4.7' below the surface. This is also the most southernmost of the test holes
and the closest to the wetlands. Test Hole No. 54 had groundwater at 5.8' and Test
Hole No. 43 at 6.5'. The remainder of the test holes indicated water at depths greater
than 7.
The water levels encountered will not impact the fact that septic systems can be placed
on the lots. In areas around Test Hole Nos. 43, 52, and 54 bed systems or shallow 5'
wide trenches will probably be required. Topography on these lots is such that gravity
flow can be easily achieved. We are confident therefore that all of the lots in the
proposed subdivision will support a minimum of 1 primary and 2 alternate septic
systems and recommend that the lot configuration be approved.
Sincerely,
Michael E. Anderson, P.E.
Attachment
,Autumn Ridge Subdivision _
" SHEEtesthole depths / water level checks 5/11-12/01 _
` CALCULATED BY DATE
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May -23. 2005 6:210 9015226119
Municipality of Anchorage
Development Services Department
Building Safety Division
On -Site Water and Wastewater Program
4700 South Bragaw St.
P.O. Box 196550 Anchorage, AK 99519.6650
www.d.anchorage.ak.us
(907) 343-7904
No -0285 P. 2/4
ON-SITE SEWER/WELL SUBMITTAL COMMENT SHEET
To: ANpEgSON ENGINEERING
Legal description: AUTUMN RIDGE SID LOT 9
The attached paperwork has been reviewed and is being returned for the following reasons;
❑ Original signature or stamp missing on
❑ calculation error In design.
❑ Additional soils information needed.
❑ Water monitoring results Inadequate.
❑ Discrepancy in information submitted.
❑ Topographic Information missing or Inadequate.
❑ Incomplete; missing _.
❑ Incomplete; missing —.
❑ Additional adequacy test infornation needed.
❑ Water sample unacceptable. _
❑ Measured/proposed distancestdimensions missing.
❑ Locations of all soils, percolation and water monitoring tests not shown-,
❑ Proposed system too deep for soils information submitted.
❑ Well log required.
❑ Omission in narrative.
❑ Insufficient fill over tank or field.
® Other. NEED TO DO GROUNDWATER MONr roRiNG THROUGH MAY 15TH THE RESULTS OF GROUNDWATER
TESTINGMIJST BEAR ORIGINAL SIGNATURE AND STAMP OF ENGINEER,
Name of reviewer. IQE GOODALL
Date: 5/10/2005
Please supply the necessary information and re -submit your request.
LEAVE THIS FORM ATTACHED TO THE PAPERWORK
Municipality of Anchorage
Development Services Department
Building Safety Division
On -Site Water and Wastewater Program
4700 Elmore Road
P.O. Box 196650
Anchorage, AK 99507
www.muni.org/onsite
(907) 343-7904
CERTIFICATE OF ON-SITE SYSTEMS APPROVAL
FOR A SINGLE FAMILY DWELLING
Parcel I.D. 015-054-12
1. GENERAL INFORMATION
COSA #— H 4 ( qeAgq
Expiration Date: 6--- a _ -6- D 9
Complete legal description Lot 9, Autumn Fudge SubdMsion
Location (site address) 9457 Nickell Circle Anchorage, AK 99516
Current Property owner(s) Sheba Borer Day phone
Mailing address P.O. Box 241346 Anchorage, AK 99524
Lending agency Day phone
Mailing address
Real Estate Agent Day phone
Mailing Address
Unless otherwise requested, COSA will be held by DSD for pickup.
2. NUMBER OF BEDROOMS:
Five (5)
3. TYPE OF WATER SUPPLY:
TYPE OF WASTEWATER DISPOSAL:
Individual Well
Individual On-site
0
Individual Water Storage
❑
Individual Holding Tank
❑
Community Class Well
❑
Community On-site
❑
Public Water System
❑
Public Sewer
❑
The Municipality of Anchorage Development Services Department (DSD) issues Certificates of On -Site Systems
Approval (COSA) based only upon the representations given in paragraph 4 by an independent professional civil
engineer registered in the State of Alaska. Certificates of On -Site Systems Approval are required for the transfer of
title (except between spouses) for properties served by a single-family on-site wastewater disposal and/or water
supply system. DSD also issues COSAs upon request to homeowners. Certificates of On -Site Systems Approval
are valid for 90 days from the date of issue for properties served by a private or Class C well and may be reissued
with new water sample results. (Certificates may be reissued for a period of up to one year with valid water
samples.) Certificates are valid for one year for properties served by Class A or B wells or a public water system.
The Municipality of Anchorage is not responsible for errors or omissions in the professional engineer's work.
4. STATEMENT OF INSPECTION BY ENGINEER
As certified by my seal affixed hereto and as of the validation date shown below, 1 verify that my Investigation,
based on procedures outlined In the Certificate of Onsite Systems Approval Guidelines for this application,
shows that the on-site water supply and/or wastewater disposal system is (are) safe, functional and adequate
for the number of bedrooms and type of structure indicated herein. l further verify that Pased on the information
obtained fro OwlMLnicipality of Anchorage files and from my investigation and InspeLGon, the on-site water
spply $rr41� Wastewater disposal system Is(are) in compliance with all applicable Municipaland.State codes,
oand regulations in effect at the time of Installation.
Name of Firm Anderson Engineering
Address P.O. Box 240773 Anchorage, AK 99524
Engineer's Printed Name Michael E. Anderson, P.E.
Phone 522.7773
Date 212412009
OF A4
..
* 49101<-Y
9*dei
-/ "1 MKHML E ANDERSON
S. DSD SIGNATURE �0 CE -4381
_Approved for i bedrooms. �OIF� pRpFESSto�O� ��
Disapproved.
Conditional approval for bedrooms, with the following stipulations:
Attachments:
COSA Checklist X_
Septic System Advisory
Well Flow Advisory
Nitrate Advisory
Arsenic Advisory
Maintenance Agreements
Supplemental Engineer's Report
Other
By: G'v. Original Certificate Date:
(Rw 1105)
Municipality of Anchorage
• �' Development Services Department
Building Safety Division
On -Site Water S Wastewater Program
4700 Elmore Road
P.O. Box 196650
Anchorage, AK 99507
www.muni.org/onsfte
(907)343-7904
CERTIFICATE OF ON-SITE SYSTEMS APPROVAL CHECKLIST
Legal Description: Lot 9, Autumn Ridge Subdivision Parcel ID: 015-054.12
A. WELL DATA
Well type Private If A, B, or C provide PWSID # _ Well Log (Y/N) Y
Date completed 11/9/05 Sanitary seal (YM) Y Wires properly protected (YM) Y
Total depth 221 ft. Cased to 221 ft. Casing height (above ground) >18 In.
FROM WELL LOG AT INSPECTION
Date of test 11Aro5 2/22!09
Static water level 191 g, 184.5 ft
Well production 10 g.p.m. 3.3 g.p.m.
WATER SAMPLE RESULTS:
Coliform 0 colonies/100 mL Nitrate •736 mg/L Other bacteria 0 colonies/100 mL
Arsenic: NID ugll Date of sample: 2n1/09 Collected by: MEA
B. SEPTICIHOLDING TANK DATA
TankType/Material Saac/steel Date Installed 1NtV1004
Tank size 1.500 gal. Number of Compartments 2 Cleanouts (YIN) Y
Foundation cleanout (YM) Y Depression over tank (YIN) N High water alarm (Y/N) N
Date of pumping 6/15/09 Pumper A Pius Home Services
C. ABSORPTION FIELD DATA
Date installed 6M1105 Soil rating (g.p.d.lft2 orf?lbdrm) t.2 SFIBDRM System type 5•wideTrench
Length 64 ft. Width 5 ft. Gravel below pipe 4 ft.
Total depth 9 71 ft. Eff. absorption area 640 ftt Monitoring tube Y Depression over fell N
Date of adequacy test 2/22109 Results (Pass/Fail) Pass For 5 bedrooms
Fluid depth in absorption field before test 0 1 in. Water added 771 gal. New depth 0 in.
Elapsed Time: 0 min. Final fluid depth 0 in. Absorption rate >= 750 g.p.d.
Any rejuvenation treatment (past 12 mo.) (YIN 8 type) N If yes, give date
D. LIFT STATION
Date Installed Size In gallons
Manhole/Access (YIN)
'Pump on' level at _In. 'Pump off level at_
in. High water alarm level at in.
Datum Cycles tested
Meets alarm & circuit requirements?
E. SEPARATION DISTANCES
SEPARATION DISTANCES FROM WELL ON LOT TO:
Septic tank/lift station on lot >100'
On adjacent lots >100,
Absorption field on tot >700'
On adjacent lots a100,
Public sewer main WA
Public sewer manholelcleanout N/A
Sewer/septic service line >25'
Holding tank N/A
Animal containment areas None
Manure/animal excrete storage areas None
SEPARATION DISTANCES FROM SEPTICIHOLDING TANK ON LOT TO:
Building foundation >5' Property line >5'
Absorption field 2.5,
Water main N/A Water service fine
>10' Surface water >100•
Wells on adjacent lots >100•
SEPARATION DISTANCE FROM ABSORPTION FIELD
ON LOT TO:
Property line 4" Building foundation >10` Water main N/A
Water Service line >10' Surface water >100'
Driveway, parking/vehicle storage 15'
Curtain drain None Noted Wells on adjacent lots
>100'
F. COMMENTS: See Lot Une Waiver on File.
G. ENGINEER'S CERTIFICATION
I certify that / have determined through field inspections and
review of Municipal records that the above systems are in
conformance with MOA COSA guidelines In effect on this date.
Engineer's Printed Name Michael E. Anderson, P.E.
Date 212412009
COSA Fee $�7 yf
Date of Payment
Receipt Number 0 r7 30
(Rev. 11/05)
Waiver Fee $ _
Date of Payment
Receipt Number,
C1.
w Aft E-ANOEQSOU
x -4381
.�
Jain JacK�,,4
Municipality of Anchorage
Development Services Department
Building Safety Division
On -She Water and Wastewater Program '
4700 Bragaw Street
P.O. Box 196650
Anchorage, AK 995195650
www.muni.org/onsite
(907) 343-7904
CERTIFICATE OF ON-SITE SYSTEMS APPROVAL
FOR A SINGLE FAMILY DWELLING
Parcel I.D. 015054-12 COSA# �ilCr7i�h
1. GENERAL INFORMATION Expiration Date: - J/- — f 9 — Q 6
Complete legal description Lot 9, A" grin Ridge subdivision
Location (site address) 9457 Nidcetl Cirde
Current Property owner(S) Northwood Hanes. Inc.
Mailing address
Lending agency
Mailing address
Real Estate Agent
P.O. Box 92901 Andiorege, AK 99509
Day phone 694-5890
Day phone
Day phone
Mailing Address
Unless otherwise requested, COSA will be held by DSD
for pickup.
2. NUMBER OF BEDROOMS:
Five (5)
3. TYPE OF WATER SUPPLY:
TYPE OF WASTEWATER DISPOSAL:
Individual Well
(]
Individual On-site
0
Individual Water Storage
❑
Individual Holding Tank
❑
Community Class Well
❑
Community On-site
❑
Public Water System
❑
Public Sewer
❑
The Municipality of Anchorage Development Services Department (DSD) issues Certificates of On -Site Systems
Approval (COSA) based only upon the representations given in paragraph 4 by an independent professional civil
engineer registered In the State of Alaska. Certificates of Onsite Systems Approval are required for the transfer of
title (except between spouses) for properties served by a single-family on -she wastewater disposal and/or water
supply system. DSD also Issues COSAs upon request to homeowners. Certificates of On -Site Systems Approval
are valid for 90 days from the date of issue for properties served by a private or Class C well and may be reissued
with new water sample results. (Certificates may be reissued for a period of up to one year with valid water
samples.) Certificates are valid for one year for properties served by Class A or B wells or a public water system.
The Municipality of Anchorage is not responsible for errors or omissions in the professional engineer's work.
4. STATEMENT OF INSPECTION BY ENGINEER
As certified by my seal affixed hereto and as of the validation date shown below, I verify that my investigation,
based on procedures outlined In the Certificate of On -Site Systems Approval Guidelines for this application,
shows that the on-site water supply and/or wastewater disposal system is (are) safe, functional and adequate
for the number of bedrooms and type of structure Indicated herein. I further verify that based on the information
obtained from the Municipality of Anchorage files and from my Investigation and inspection, the on-site water
supply and/or wastewater disposal system Is(are) in compliance with all applicable Municipal and State codes,
ordinances, and regulations in effect at the time of installation.
Name of Finn Anderson Engineering
Address P.O. Box 240773 Anchorage, AK 99524
Engineer's Printed Name Michael E. Anderson, P.E.
6. DSD SIGNATURE
V -"o Approved for bedrooms.
Disapproved.
Phone 522-7773
Date IM0°5
Conditional approval for bedrooms, with the following stipulations:
Attachments:
COSA Checklist
Septic System Advisory
Well Flow Advisory
Nitrate Advisory
Arsenic Advisory
Maintenance Agreements
Supplemental Engineer's Report
Other
By. ���V /� Original Certificate Date:
(Rm lift)
Municipality of Anchorage
Development Services Department
Building Sarely Division :• • `
On-site Water a Wastewater Program
4700 Brepw Street
P.O. Box IBM
Anchorage, AK 99519.5550
www.muN.orglormtie
(907) 943-7904
CERTIFICATE OF ON-SrrE SYSTEMS APPROVAL CHECKLIST
Legal Description: Lot 9. Autumn Rldee Subdivision
Parcel ID: 016-054.12
A. WELL DATA
Weil type Pdvats If A, B. or C provide PWSID # _ Wee Lop (YIN) Y
Date completed 11/9/05 Sanitary aeal (Y)N) Y Wires PWOrly protected (Y/N) Y
Total depth 221 fL Cased to 221 g, Cast height (above ground) 24 in.
FROM WELL LOG AT INSPECTION
Date of test 111905
Static water ieval 191 R,
Wali production 10 g.p.m.
WATER SAMPLE RESULTS:
Coliform O �
6ortba/100 ml.
AraeNa 5. tm Mon
B. SEP7ICIHOLDINO TANK DATA
Nitrate
Dated sample: 12 Jos
Tank Type) taateriial Se 01
Tank size o== gal. Number of Compartments 2
Foundation deanmA (Y/N) 2L Depression aver tank (YIN) N
Date of pumping New Construction pumper
C. ABSORPTION FIELD DATA
R.
9—
p.m-LA
Other bacteria U colonley100 mL
Collected by: L • t • �K
Date installed 11/11/2004 .
CleanaAa (YIN) Y
High water alarm (YM) N
Data krststied enym Sall rating (g.p.dW 0rIe/bdrm)1.2 GPDISF By tM hype s Wkla Trench
LwqM 84 fL Width 5 fL Gravel below pipe 4 R.
Total depth _ 9.11 tt ER. absorption area M2_je Monlioring tube t—pepression over Ilekl N
Date or adequacy teat Naw Const. Results (Paas/Fati) For _bedrooms
Fluid 40M in absorption field before teat h. Water added_, gal. New depth ts.
Elapsed Time: min. Final fluid depth in. Absorption rate >=
Any rejuvenation treatment (past 12 mo.) (YM a type) If Yee, give date
D. LIFT STATION
Data katailed Size In gallons Manhole/Access (YM)
'Pump on' level at _ in. 'Pump off level at _ in. High water alarm level at in.
Datum Cycles fasted
E. SEPARATION DISTANCES
SEPARATION DISTANCES FROM WELL ON LOT TO:
Septic tankAift station an lot >1W
Absorption field on lot >1W
Public sewer main WA
Sewer /septic service Una >2'
Animal containment areas WA
Meets elemi a drarit reto wsm 7
On adjacent kis >IW
On adjacent kis >IW
Public sewer manholelcleanout N/A
Holding tank N/A
Manurelanknal excrete storage areas WA
SEPARATION DISTANCES FROM SEPTICMOLOING TANK ON LOT TO:
Building foundation >V Property line >V Absorption field >B
Water main WA Water service Ane >IW Surface water >1W
Wags On adjacent kis >IW
SEPARATION DISTANCE FROM ABSORPTION FIELD ON LOT TO:
Properly Ane IV Building foundation >1 V Water main NIA
Water Service line >1W Surface water >1ar Driveway, patdnghWkiestorage >1W
Curtain drain None Noted Web on adjacent lots >IW
F. COMMENTS: See LOt Line Waiver for Absorption Trench.
G. ENGINEER'S CERTIFICATION
I cer* that 1 have determfied through field Inspections and
review of Mur*4W records that Me above systems are In
conformance with MOA COSH guldefines In effect an One date.
Engineer's Printed Name Micheal E. Anderson, P.E.
Date 1AW2006
COSA Fee i 4 5-1.5o + fir) Waiver Fee t /K- as
Date of Payment 1-11-0(0 Date of Payment r- 11-O (o
Receipt Number 5 FYI Receipt Number
MW. l liOs)
ANDERSON ENGINEERING
P.O. BOX 240773
ANCHORAGE, AK 99524
522-7773 677-7766 (F
January 6, 2006
Municipality of Anchorage
Development Services Department
On -Site Water and Wastewater Program
P.O. Box 196650
Anchorage, AK 99519-6650
Subject: Lot 9, Autumn Ridge Subdivision
Separation Distance Waiver
Absorption Trench to Lot Line
Dear On Site Services Engineer:
The surface area available for a septic system on this lot combined with the house
location and the location of a drainage easement require that absorption trench and
alternate site be placed within 4' of the eastern property line. Placement of the
absorption trenches at these locations will have no adverse affect on septic systems or
wells in the area. We therefore request a waiver be issued allowing the trenches to be
4' from the eastern property line.
Sincerely,
v
Michael E. Anderson, P.E.
Municipality of Anchorage
I ` t'O. Dn 10MA50 • Anchorage, Alaska (W,19.66N) • Telephone (907) 33.3-KY)1 • rac ((W) 3r3.&.'.()() : `•�
47(() nragaw Stmet • Anchomgc, rVaslw 9!ki07
UvV.nnmi.org
Mayor Mark Begich
I3ui1di11g Safely Division
1/12/2006
Mike Anderson
Anderson Engineering P.O. Box 240773 Anchorage Ak. 99524
Subject: Waiver Request for Autumn Ridge Lot 9
Waiver Request #WR060002
Parcel ID #015-054-12
HAA#060010 Permit # 050135
Dear Engineer,
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 4.0 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,
Jeffrey W. Poet
Engineering Technician
On -Site Water & Wastewater Program
Comnzzinity, Security, Prosperity
LOT 8
;�:' 49?H Da y,
.............................
Mich el L. Jokel°
Oma LS -7839
n •' S°`oG
C)
17—
M
PAI
;,
M
r N 89'56'04"
I 10'X20' T&E
EASEMENT
5' SNOW STORAGE EASEMENT
ORDERED BY:
JIM JACKSON
with NORTHWOOD HOMES. INC.
440 WEST BENSON BLVD. # 200
ANCHORAGE. ALASKA 99503
NRB I MLJ I 2437
TRACT A
OPEN SPACE
T
0
0
0
rn
N
LD
m
LOT 10
NOTE: THIS DRAWING IS NOT TO BE MODIFIED FOR USE AS A PLOT PLAN.
EXCLUSION NOTES: It Is the ornery responsibility to determine
the existence of any sasemen ts, covenonts, or restrictions
which do not appear on the recorded subdivision plat. NOTE:
Under no circumstances should any data hereon be used for
construction or far establishing property lines.
bUKVLT ULKIIrNUIIURI LANILGH nos conOUCTBa o
physical survey of this property as shown on this
drawing and that the improvements situated there
on are within the property lines and no encroach-
ments exist other than noted.
A S— B U I L T 0 F: LEGAL DESCRIPTION
ix)561-66
7) 26
7) 562-5291
�% �}:i'•i:89r::•r..
f IeAr9El!
003
L=101
-w
Ref 051-78
_ I
_ — —
0
CONCRETE-
O
...GRAVEL'.....'..':.
tr n
'::: DRIVE 7: 47e. •:::.
Q _�•
I
I
I
SAD 37.9
0
\ 62.3
10
AD EXISTING 'a
Z
Q \
HWSE �p
00
C5
0)
\ F \
\ 4N \
la
\ \ F'fic`,1,
1
\�
1 LOT 9
N
I
N
I
I
zo
I
I
\
I
\
I
CLASS B
\
\
WETLANDS
\
S 89'53'31" W 151.52'
ORDERED BY:
JIM JACKSON
with NORTHWOOD HOMES. INC.
440 WEST BENSON BLVD. # 200
ANCHORAGE. ALASKA 99503
NRB I MLJ I 2437
TRACT A
OPEN SPACE
T
0
0
0
rn
N
LD
m
LOT 10
NOTE: THIS DRAWING IS NOT TO BE MODIFIED FOR USE AS A PLOT PLAN.
EXCLUSION NOTES: It Is the ornery responsibility to determine
the existence of any sasemen ts, covenonts, or restrictions
which do not appear on the recorded subdivision plat. NOTE:
Under no circumstances should any data hereon be used for
construction or far establishing property lines.
bUKVLT ULKIIrNUIIURI LANILGH nos conOUCTBa o
physical survey of this property as shown on this
drawing and that the improvements situated there
on are within the property lines and no encroach-
ments exist other than noted.
A S— B U I L T 0 F: LEGAL DESCRIPTION
ix)561-66
7) 26
7) 562-5291
LOT 9,
f IeAr9El!
003
AUTUMN
-w
Ref 051-78
WOOD DECKS-
5/8-RO W/CAPD 5/8- RB 0
3.25* ALMON. ®!MONUMENT 4
NUB & TACK E7
FENCE- —x—
x —
OVERHANG-
0
WOOD DECKS-
0
CONCRETE-
O
ASPHALT -
SEPTIC STANDPIPES -.5....
WATER WELL-
Q _�•
RIDGE SUBDIVISION