HomeMy WebLinkAboutMT BALDY ESTATES PHASE 1 LT 2 Onsite File
Mt Baldy
Estates # 1
Lot 2
#050 - 762 - 14
Municipality of Anchorage
On-Site Water and Wastewater Program • (907) 343-7904 Page 1 of 3
ON-SITE WASTEWATER INSPECTION REPORT
Permit Number: OSP171063 PID Number: 050-762-14
Dwelling: ❑■ Single Family (SF) E Duplex(D) ❑ Multiple (SF and/or D) Project: g New ❑ Upgrade
Name:
Troy Davis Homes Inc. ABSORPTION FIELD
Address ❑ Deep Trench ❑■ Shallow Trench ❑ Bed ❑ Mound
1689 Knik Goose Bay Dr#400 Wasilla AK 99654 ❑ Other
Phone Number of Bedrooms Soil Rating Total depth from original grade
907-310-2501 4 0.8 GPD/SF 0 / 0 Ft.
LEGAL DESCRIPTION Depth to pipe invert from original grade Gravel depth beneath pipe
Subdivision Block Lot -0.5 / -0.5 Ft. 0.5 / 0.5 Ft.
Mt. Baldy Estates Phase 1 2 Fill added above original grade Gravel length
Township Range Section 6.0 / 8.3 Ft. 75 / 75 Ft.
Gravel width Beds:Number of Lines Distance between lines
SEPARATION DISTANCES 5 / 5" Ft. Ft.
TO Septic Absorption Lift Station Holding Sewer Total absorption area Number of trenches Dist.between trenches
From Tank Field Tank Line 750 Ft2 2 >10.0 Ft.
Well >100' >100' N/A N/A >25' TANK 12 Septic 0 S.T.E.P. 0 Holding 0 Other
Manufacturer Capacity
Surface Water >100' >100' N/A N/A Anchorage Tank 1250 Gal.
Material Number of compartments
Lot Line >5' >10' N/A N/A Steel 2
NA
Foundation >5' 9' N/A N/A LIFT STATION
Manufacturer Capacity
Curtain Drain None Noted Gal.
Remarks Pump on level at Pump off level at High water alarm at
in. in. in.
Pump make and model Electrical Inspections performed by
PIPE MATERIAL House to tank D3034 Tank to D3034
Installer drainfield
Northern Excavation Drainfield D3034 CO/MT D3034
Inspector Michael E Anderson BENCH MARK (Assumed elevation) 100 ft
Inspection 151 6/2/1! 2 6/6/1 Location and description
dates: "'
3'" 4th Garage Slab
COMMUNITY DEVELOPMENT DEPARTMENT APPROVAL
Engineer's Stamp
Conditional Approval: DateAn, . •
*: 49Th ilk ••* 4
rl
rd
01 Benj n Schiller :
�� ,•. CE 12592 %/
Approves _ '41_ . Date 1 18 4, ,,*o Alf`g•• *4 A.
• • PROF_ StC
Inspection Report_9-1-12.doc
MOUNT BALDY ESTATES PHASE 1 , LOT 2
S5 PERMIT # OSP171063 PID # 050-762-14
LOT 2 VACANT
LOT 3 7"- . 7'
/ \ 7
\ 7
\ /
\ /
\ / 7
/
. i WELL \
2x-75' LONG x 5 WIDE, 0.5'
EFFECTIVE DEPTH �j /
ABSORPTION TRENCHES 9.3 i Q`
MTITH2A
03 O DRM HOME /,`��' /
4 6 `C/
MT1C01..•• •./FCIO.. \ Q /
• j4i • '.----\
--r1ooC• o• 1! 2507GiNK
C04.MT4. . . EPTI'411
A B C
/ r / FCO 10.6 5.9 —
TH2B . / / SV1 23.8 22.0 —
MT2 SV2 31.6 29.8 ---
CO2 2C0 34.9 32.6 --
CO1 26.8 12.9 ---
MT1 26.7 12.5 ---
/ CO2 85.4 83.7 ---
_ MT2 85.2 83.0 ---
ALTERNATE SITE CO3 --- 33.5 11.7
/
MT3 --- 35.6 13.3
C04 --- 60.8 81.4
NOTE: / MT4 --- 60.0 81.0
��, �‘\\,l NO SLOPES>25%WITHIN 50'OR SURFACE WATER WITHIN 100'OF THE LEGEND
� 9r. gyp 11 PROPOSED SEPTIC SYSTEM CO-CLEANOUT
/I'lb.• .TM 37 1 2C0-DOUBLE CLEANOUT
', / ALL WELLS ON SURROUNDING LOTS WITH IMPACTS TO THIS
. ... .. / FCO-FOUNDATION CLEANOUT
4 ••..,� I / PROPERTY ARE SHOWN.NO CONFLICTS WITH WELLS OR SEPTIC
/ FS-FLOW SPLITTER VALVE
/ SYSTEMS.
�-.• :enja i� Schiller •��j 0 50 100 MH-MANHOLE
O �` .. CE 12592 • / MT-MONITORING TUBE
isle . Feb 23.2719 ..•� ,� IIIII I= = FEET
Ilk eF°PROFESSIO0.,\ ' SV-SEPTIC VENT
\���"��'- 1"=50' TH-TEST HOLE
MT BALDY ESTATES PHASE 1 LOT 2
PERMIT # OSP171063 PID # 050-762-14
0
O N 5 > N
- /-93.4 — — —
,[88.1
S
87.5 Yr
1250 GAL 87.3
SEPTIC TANK
J
� `—83.3
OH INSULATION 1—p
Um MU
,---91.5 FINISH GRADE - " 85.5 ORIGINAL GRADE
DRA#NFIELD ROCK
MOA APPROVED DRAINAGE SAND
86.0
86.0
85.5 85.5
75'
1.—
/78.01
80NO GROUNDWATER 3/29/05
73.8
Q
N
H O
INSULATION f—o
H
o— _. —90.6 FINISH GRADE -U 82.3 ORIGINAL GRADE
: ::
MOA APPROVED DRAINAGE SAND 82.3
75'
NO GROUNDWATER 3/29/05
774.3
73.8 �������A\�
03
cN
PROFILE AS-BUILT %*� '",;." •�� '�*�i
(NO SCALE) % ". ' "" .. 1
Benja ' chiller j
�#or •... Cmaap92,.�.V?rO
1FF1PROfESS.0.0\'�
Municipality of Anchorage ''�'; �,
P.O. Box 196650 • 4700 Elmore Road
Anchorage, Alaska 99519-6650 • (907) 343-7904 • Fax (907) 343-7997
http://www.muni.orq/Onsite
Development Services Department
On-Site Water and Wastewater Section
**** VARIANCE/WAIVER REVIEW ****
Waiver#: OSV181005 COSA#: OSC181056 Permit#:
PID#: 050-762-14
Legal Description: Mt Baldy Estates Phase 1 Lot 2
Engineer: Forge Engineering
Applicant: Troy Davis Homes
Your request for a waiver of the required 10 feet horizontal separation from the absorption field
to the foundation has been approved. The approved separation distance is 9.0 feet.
This waiver approval applies to the existing absorption field only. Any future upgrade to the on-
site wastewater disposal system will require all separation distances be met or another approval
from this department.
Waiver is Granted: X Waiver is not Granted:
Date: of 2/1k Approved by: '2e...Le-/C/C2g, C.CtiCra
Name of Reviewer
**** VARIANCE/WAIVER REVIEW ****
" GE
ENGINEERING
PO BOX 240773
ANCHORAGE,AK 99524
522-7773 677-7766(FAX)
February 20, 2018
Municipality of Anchorage
Development Services Dept- On-Site Water& Wastewater Program
4700 Elmore Rd
Anchorage, AK 99507
Subject: Mt Baldy Estates Lot 2-12850 Golden Eagle Drive
Variance Request—Field to foundation
Dear On-Site Services Engineer:
During the construction of the septic fields for this property, the home was inadvertently built too
close to one of the septic fields. The topography of this lot is such that the locations of the home
and septic systems is very tight. The fields were placed as close as possible to the lot lines, but
when the final survey was done, the northern field is approximately 9.3' away from the building
foundation. In this case, the field is a raised bed with the sewer rock located at approximately the
existing grade. This shallow trench will not affect the foundation in any way.
We request a waiver for a 9' separation from the northern trench to the house foundation.
Sincerely,
Benjamin Schiller, PE
oF Aii
*: 49TM ••it 1,
�r :• Benjam Schiller
#�F�,,•• CE 12592 .**(%/`k\ FDPROFESS\c ..r
Wheaton Water Well, Inc.
1190 N. Wasilla-Fishhook Road
Wasilla, AK 99654
(907)376-2041
I
Name: Troy Davis Homes, Inc.
Address: 1689 Knik Goose Bay Road, Suite 400
City: Wasilla State: AK Zip Code: 99654
Well Site: Mt. Baldy Estates Ph. 1 Lot: 2 Block:
Additional: Permit #0SP171063
Well Depth: 205 ft. From: To: Formation:
Below Ground: 203 ft. 0 7 stickup, boulders, silt, gravel
Above Ground: 2 ft. 7 17 soft gray bedrock
17 76 hard gray rock
Gal/Min: 1 76 103 black shale
Static Level: 27 ft. 103 138 hard gray rock
asing:
43' of 6" ID Steel 138 205 very hard gray rock
finer Pipe: none
creened: noner
erforated: none 1r'Vf'' .;,--:L.!TY TESTING
CoUfo-: _ CoI/100mL
routed: Bentonite NitrF.den _. _„t_S 1 mg/L
Depth: 20' + Arr:unic. IV P ug/L
Develop. Method: Air
Use of Well: Residential Well hydrofracked on
Drilling Method: Rotary 6-28-2017. Well is now
Fluids Used: none producing 4.5 gpm.
Pump Installed: none
Other: none
Date Drilled: 6-8-2017 Driller: Ben Mattson
Development Services Department
•
Building Safety Division
PO B V'
On-Site Water & Wastewater Program
w Y' 4700 Elmore Road ,_
P.O. Box 196650 �.L1 I
Anchorage, s A E T Y
e, AK 99507
Mark Begich 9
Mayor www.muni.org/onsite
(907)343-7904
Pump Installation Log
Well Drilling Permit Number: SW OSP171063 Date of Issue: 4-26-2017
Parcel Identification Number:050-762-14-000
Legal Description Property Owner Name& Address:
Mt.Baldy Estates Ph. 1 Lot 2 Troy Davis Homes,Inc.
12850 Golden Eagle Drive 1689 Knik Goose Bay Rd#400
Eagle River,AK Wasilla,AK 99654
Pump Installation Date: 7-7-2017
Pump Intake Depth Below Top of Well Casing: 183 feet
Pump Manufacturer's Name: Goulds
Pump Model: 7HS05412CL
Pump Size 1/2 hp
Pitless Adapter Burial Depth: 9 feet
Pitless Adapter Manufacturer's Name: Harvard
Pitless Adapter Installer: Unknown
Well Disinfected Upon Completion? E Yes No
Method of Disinfection: Chlorine tablets
Comments:
Pump Installer Name: Wheaton Water Well,Inc.
1190 N.Wasilla-Fishhook Road '
Wasilla,AK 99654
Attention: The pump installer shall provide a pump installation log to the DSD within 30 days of pump installation.
MUNICIPALITY OF ANCHORAGE _����\\\‘\
DEVELOPMENT SERVICES DEPARTMENT ii�P 4;kk,
4700 BRAGAW STREET ANCHORAGE, AK 99519-6650 /*•• �� *QVi
SOILS LOG - PERCOLATION TEST 1011 —
% .,,�
n . :enj.Cin Schiller ' /
LEGAL DESCRIPTION: LOT 2, MOUNT BALDY ESTATES ��,�F1 4•; FeD2o 12592 .�V r.
��FqF�PRO FESSIONP�
PERFORMED FOR: TROY DAVIS HOMFS \�\.N. `4&--4'+
DATE: 5/11/17 PROJECT No.:
PARCEL ID#: TECHNICIAN: M. ANDERSON Professional Engineers Stamp:
DEPTH TEST HOLE 2A
(feet)
1 OB/OG SLOPE SITE PLAN
2 . a
3 • .4 '•z SILTY GRAVEL
• WITH SAND
4 . •A GM
5 • SEE SITE PLAN
. SILT/GRAY
6
7 • BOH @ 7.5'
8 I 1 J BEDROCK
9 : I1=
a' WAS GROUND WATER ENCOUNTERED? No
10 IF YES @ WHAT DEPTH', S
Ell I- DEPTH OF WATER AFTER MONITORING: L
1 I DATE OF MONITORING:
12 I III E
GROSS TIME NET TIME DEWATH ER
To NET DROP
13 DATE READING (MINUTES) (MINUTES) WATER (INCHES)
(INCHES)
14
15
16
17
18
19
20
PERCOLATION RATE: (MIN/INCH) PERC. HOLE DIA. (INCHES)
TEST RUN BETWEEN: FT. and FT.
COMMENTS: TEST HOLE TO VERIFY BEDROCK DEPTH.
MUNICIPALITY OF ANCHORAGE 4_bN‘NI\��\\���l
DEVELOPMENT SERVICES DEPARTMENT i:Q .Pt•• c4�1ii
•
4700 BRAGAW STREET ANCHORAGE, AK 99519-6650 *. 1\ *t V
SOILS LOG - PERCOLATION TEST %,•tom
OA . Be .min Schiller
�+�Fc•. CE 12592 ••��t%
LEGAL DESCRIPTION: LOT 2, MOUNT BALDY ESTATES tk1F9FOPRo ESSION••••
PERFORMED FOR: TROY DAVIS HOMES l>>A\"``'2
DATE: 5/11/17 PROJECT No.: Professional Engineers Stamp:
PARCEL IMP TECHNICIAN: M. ANDERSON
DEPTH TEST HOLE 2B
(feet)
1 OB/OG SLOPE SITE PLAN
2 . A
•
3 . ••.4 SILTY GRAVEL
' 'i
WITH SAND
4 GM
5
• SILT/GRAY SEE SITE PLAN
6
7 • BOH @ 8'
8 °
1=111 BEDROCK
"—I I. H"
1 O - WAS GROUND WATER ENCOUNTERED? No
IF YES @ WHAT DEPTH>
- DEPTH OF WATER AFTER MONITORING: L
11 -I I I— DATE OF MONITORING:
E
12 1=11 GROSS TIME NET TIME DEPTH TO NET DROP
13 DATE READING (MINUTES) (MINUTES) WATER (INCHES)
(INCHES)
14
15
16
17
18
19
20
PERCOLATION RATE: (MIN/INCH) PERC. HOLE DIA. (INCHES)
TEST RUN BETWEEN: FT. and FT.
COMMENTS: TEST HOLE TO VERIFY BEDROCK DEPTH.
�•J'' "'`CIR MUNICIPALITY OF ANCHORAGE
111cn
On-Site Water& Wastewater Program �0 S.
�
PO Box 196650 4700 Elmore Road ,.
Anchorage,Alaska 99519-6650 Phone:(907)343-7904 Fax:(907)343-7997
http://www.muni.org/onsite i
11/(f7.1. 140111,
On-Site Water & Wastewater System Permit
Permit Number: OSP171063 Effective Date: 4/26/2017
Work Type: WellSeptic Initial Expiration Date: 4/26/2018
Tax Code Number: 05076214000
Site Legal Address: MT BALDY ESTATES PHASE 1 LT 2 G:0355
Site Mailing Address: 12850 GOLDEN EAGLE DR, Eagle River
Owner: TROY DAVIS HOMES INC Lot Size in Sq Ft: 326663
Design Engineer: ANDERSON ENGINEERING Total Bedrooms: 4
This permit is for the construction of:
RI Disposal Field El Septic Tank El Holding Tank ❑ Privy 0 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
Special Provisions: 1. Bedrock confirmation testholes are to be done prior to construction of the septic field
(see site plan for locations). If the results require a design change, construction of the system will stop pending
on-site review and approval. Please submit stamped and signed results with the inspection report/record
drawings.
...---?-s-k--._
Received By: bfr'--5--, . Date: u a7 I
Issued By: y `[ (tt6C� ctr( / Date: Aril
MUNICIPALITY OF ANCHORAGE
f'�•� X89 1077
Community Development Department �, �•.f : \one: 907-343-7904
Development Services Division '= X017cax: 907-343-7997
On-Site Water & Wastewater Program p,pR � 1
ON-SITE SEWER/WELL PER PPLICATI
OL 68 L
Parcel I.D. 050-762-14
Property owner(s) Troy Davis Homes, Inc. Day phone 310-2501
Mailing address 165 E. Parks Highway #200 Wasilla, AK 99654
Site address 12850 Golden Eagle Drive Eagle River, AK 99577
Legal description (Sub'd., Block & Lot) Mount Baldy Estates Phase 1, Lot 2
Legal description (Township, Range & Section)
Lot Size 326,663 Sq. Ft. Number of Bedrooms Four (4)
APPLICATION IS FOR: APPLICATION IS AN: TYPE OF DWELLING:
(®all that apply)
Absorption Field ❑X Initial ❑X Single Family (SF) ❑X
(w/wo ADU)
Septic Tank ❑X Upgrade ❑
Duplex (D) ❑
Holding Tank ❑ Renewal ❑
Multiple Dwellings ❑
Privy ❑ (SF and/or D)
Private Well EI
Water Storage ❑
THIS APPLICATION INCLUDES A VARIANCE / WAIVER REQUEST FOR:
Distance:
I certify that the above information is correct. I further certify that this is in accordance with
applicable Municipal Codes.
LJ-
(Signature of property owner or authorized agent)
Permit/Rush Fees: '7 I R Waiver Fees:
`
Date of Payment: 2PT Date of Payment:
Receipt Number: 0(.035-86 5-86 Receipt Number:
Permit No. OSP(7/063 Waiver No.
Permit App_ : ':..k
ANDERSON ENGINEERING
P.O. BOX 240773
ANCHORAGE, AK 99524
522-7773 677-7766 (FAX) ,
April 21, 2017
Municipality of Anchorage
Development Services Department
On-Site Water and Wastewater Program
4700 South Bragaw Street
Anchorage, AK 99519-6650
Subject: Lot 2, Mount Baldy Estates Phase 1 Subdivision
Septic System Design and Permit Application
Impacts to Adjacent Properties
Dear Onsite Services Engineer:
The owner of Lot 2, Mount Baldy Estates Phase 1 Subdivision intends to construct a
new four-bedroom home on the lot. We are therefore requesting a permit be issued for
the construction of a new well and septic system to accommodate the home. Lot 3 to
the west is currently developed but the well and septic system do not impact the
location of the well and septic system on this lot. The remainder of the subdivision is
currently undeveloped. The attached Site Plan and backup documentation identify the
location and configuration of the proposed well and septic system along with the
alternate site. No existing wells or septic systems are closer than 100' from the
proposed septic system. Drainage arrows are shown on the site plan showing the
grade and direction of flow on the lot. The drainage pattern will not be changed as a
result of this project.
The test hole placed on the lot in the area of the absorption trench and alternate site
indicated sand with silt and gravel (SP/SM). The percolation rate of the soil was
determined to be 10.2 minutes per inch. No groundwater was found during the
placement of the test holes and none was noted during the monitoring period. Bedrock
was found at 8.5' below the surface in the test hole with fractured bedrock encountered
at 6'. Prior to construction a test hole will be placed at the locations shown on the Site
Plan to verify the depth of bedrock in the absorption area. An application rate of .8
gallons per day per square foot was used in the design of the absorption system. We
are proposing to place a new 1,250-gallon Septic Tank and 2-75' long by 5' wide by .5'
effective depth absorption trenches to treat and dispose of the effluent generated in the
house. The elevation of the distribution line in the absorption trench will be .5' above
the surface to provide a minimum of 6' separation from fractured bedrock. A minimum
of 3' of fill or 2" of insulation and 2' of fill will be placed over the absorption trench and 4'
Lot 2, Mount Baldy Estates Phasel
April 21, 2017
Page Two
over the septic tank. A flow splitter valve must be placed to insure even flow to each
trench.
The ground surface on the lot in the area of the absorption trenches slopes to the west
at approximately 10%. The new trenches will be constructed parallel with the contours
of the slope as much as possible in conformance with Municipal requirements. The
new septic system will be constructed a minimum of 100' from all wells and any surface
water and 10' from the proposed and existing water services in the area.
If the system is constructed in accordance with our design the following statements
apply:
1. 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,
7074jLetY,Michael E. Anderson, P.E.
Attachments
•
ts'
13I4I -
At__ E. ANDERS7 S 7
0�• 1'���1 No. CE-4381
��
', aSS�*446.
N 90'00'00"E 264.03' u)
0
cl
LOT 2, MOUNT BALDY ESTATES TRACT A
PHASE 1 6
7.50 ACRESr*i
VACANT
I\ \ .
N... I
Y
i
LOT 3co
No Conflicts with P
Well or Septic N
System on This Lot.
Z
oProposed
q
O well® !\
Ui FOUR
Li BEDROOM
(+e ./ HOME' `3D
p,
rco pe
1,250 Gallon eb CE
co Septic Tank 4f IS
— 2C0 43 N.
at
63
lox
2-75' Long x 5• Wide 10%
x .5' Effective Depth cc, „co +V`
Absorption Trenches lox/41.• A 441
` LEGEND
`oz MT - Monitor Tube
7- . O FCO - Foundation Clean Out
ALTERNATE SITE: _ TH - Test Hole
Advontex Treatment TH2 `� CO - Clean Out
System w/30' Long - O <O 2C0 - Double Clean Out
x .5 Effective Depth �,_0% 4`0• v
A - Bedrock Confirmation Test Hole
Absorption Trench. N 0 cA ♦�o►�O ill
Application Rate 4 ® N ^ V � CC QF...... .......
� 14.,
GPD/SF. A ox Q •�' P L "•••. ..
ar C9/
1 S 89'57'06"W 130.76' M v. 49th IN ', ��
1 c '-t-)
rn I-41
0 O MICHAEL E. ANDERSON ISIPRIVATE ACCESS q +c '• No• CE-4381 �'� :
..4i**••. 1-Z 6 1.10'... 1.
,'CI +is isw1\r4,4"
LOT 1A SITE PLAN
EAGLE'S NEST
SCALE 1" = 60'
LOT 2, MOUNT BALDY ESTATES
PHASE 1 SUBDIVISION
DESIGN FACTORS: SYSTEM REQUIREMENTS:
Four Bedroom Home 5'Wide Trench System
Perc. Rate: 10.2 Min./Inch 1,250 Gallon Septic Tank
Application Rate: .8 GPD/SF .5' Drainfield Rock
4 Bedrooms * 150 GPD/Bedroom = 600 GPD Total Flow
600 GPD/.8 GPD/SF/5 SF (Width) *1 (Red. Factor) = 150 LF Trench Length
THEREFORE: Construct 2-75' Long x 5'Wide x .5' Effective Depth Absorption Trenches at the Location
Shown on the Site PLan. Elevation in the Trench to be 2.0' Below Original Ground Surface, Remove
Organic Material and Replace With MOA Approved Sand as Required Under Trench. Provide 2"of
Insulation and 2' of Cover Over Trench and 4' of Cover Over Septic Tank. Place Flow Splitter to Insure
Even Flow to each Trench.
6"Topsoil and
Revegetate Fill Area
3 — Natural 3
1r- 1.0' Backfill 71
2" Insulation &
1.0' Geotextile Fabric
"//////1;r:////4
.5'
O _ 4" Perforated
OG .5' PVC (Holes Down) OG
Remove Organics
Drainfield Rock
2' Place MOA
Approved Sand
Underlying SP/SM
5'
TYPICAL 5' WIDE TRENCH SECTION
(NO SCALE)
rrrrraa��
NOTE: Grade Area Over Trench to Drain Away. •**-rE QF q,q��4���
Minimum 6' Separation From Bedrock. ••. P'.•.... ....."" `tg+�
Minimum 4' Separation From Groundwater. Arc-)‘...* �9 •
Minimum 100' Separation From Private Wells in the Area. : ' 49th f'V •: #`
Minimum 100' Separation From Surface Water or Streams. ter,,
1` MICHAEL E.ANDERSONDE -
:' 'C
`w - No. CE-4381 .
1..< 4L-
•a41 pROFESSW:40-•
�t+�aaaarr
•
Municipality of Anchorage A><KIENPJNW i<
Development Services Department s C'}��a ..)::.,..-1,
s:,.0 "a`-�y�7
• Suiiding Safety Division II yF e ,•,, - )_: 1, t
r On-Site Water and Wastewater Program �,r I "',...`,"' b-- 7 •v'i
4700 South Bragaw St. r, 7, J. /1-1 �Fl►� re
((:.!. ,.. P.O-Box 196850 Anchorage,AK 99519-6850 �' '� "'t,,.. . " - .'1: :9
vAvw.muni,oro/onsitg .. ;� ;,i!cry W !.,., it : 47;
(907)343.7904 C ^: t .7)4'i7: ,�
�a
Soils Log - Percolation Test ���- ''.,' �
Pertormed For: CMM General Contractors Date Performed:3/182005
Legal Description' , ivision of Lot 2 Township, Range,Section: NW 114 of NE 1/4,See.6,T14N,RI W.SM
Q..iot 2- Slope Site Plan
, (
Depth
(Feet)
,
yt'\/ r anic Silt(OL),root mat.,
A/brown,frozen to 0.5',moist.
rr , -. _ See Site Plan
2-
1.t x Sand with Silt,Gravel and
3-:1i1.rhi .
4-:t it Cobbles(SP-SM),brown,
'41 j1.moist.
5--.41-0--14
B- ii:f Fractured Bedrock.
trt its
7- Cleft — - ` -
1, 'a Bedrock. -5 tis
a_ a • _ _ -11u
WAS GROUND WATER
9- ENCOUNTERED? No
o- Total Depth 8.5'. s
!F YES.AT WHAT DEPTH?
o . p
Komatsu PC 120 backhoe. Depth to water Ara. c
11- Monitoring? No Water e
12- Data 3129/05
--tV
13- _
14- Reading Date Gross Time Net Time Depth to Water Net Drop
15 6" 3/18/05 3:12 pm
16- 4-12116" 3:22 pm 10 min 1-4/16"
17- 2-14/16" II 3:42 pm 30 milt 3-2/16"
a
i8- 6" 3/18/05 3:44 pm
19- 3-2/16" if 4:14 pm j30 min 2-14/16"
20- 6-1/16" 3/18105 4:16 pm
3-2/16" 4:46 pm 30 mics 2-15/16"
PERCOLATION RATE 10.2 (minutes/inch) PERC HOLE DIAMETER 6"
TEST RUN BETWEEN 2 FT AND 2.5 FT
COMMENTS
PERFORMED BY: Russell Hepaer,E.I.T. I Allan W.Muffin CERTIFY THAT THIS TEST WAS
PERFORMED IN ACCORDANCE WITH ALLSTATE AND MUNICIPAL GUIDELINES 1N EFFECT ON THIS DATE. DATE: March IS,2005
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COSA Checklist.docx
COSA Checklist
Legal Description: MT BALDY ESTATES PHASE 1 LOT 2 Parcel ID: 050-762-14
If more than 1 well and/or septic system on lot, provide separate checklist. Structure served by this system ____
A. WELL DATA
Well log is filed with Onsite (or attached)
Date drilled 6/8/2017 Total depth 205 ft
Cased to 43 ft
Sanitary seal is functioning correctly
Wires are properly protected
Casing height (above ground) 24+ in.
Date of flow test for COSA 8/5/24
Static water level at beginning of test 24 ft.
Well production at time of test 2 gpm
Water storage tank volume 250 gallons
Well disinfected for coliform test? Yes No
Coliform bacteria is Negative
Nitrate 2.43 mg/L Nitrate less than MRL (ND)
Arsenic ug/L Arsenic less than MRL (ND)
Collected by Date 8/5/24
Comments Per previous COSA & current owner, the well was hydrofracked on 6/28/17.
B. TANK DATA
Measured operating fluid level in septic tank 48”
Date of pumping 8/5/24
Required maintenance completed, if AWWTS
Comments:
C. LIFT STATION
Required maintenance completed
Age of lift station years
Lift station material
Comments:
D. ABSORPTION FIELD DATA
Which system tested (date installed) 6/6/17
ALL standpipes present per record drawing
Total measured depth from existing grade 6.2 ft (max)
Measured depth to pipe invert from grade 2.6 ft (min)
N/A – pressurized field.
Per record drawings, field is insulated.
Monitor tubes (MT) go to bottom of effective. (ED)
If not, state depth into effective
Presoaked required if
(Required if house vacant or field not used for more
than 30 days prior to date of test)
Gallons introduced gallons date
Any rejuvenation treatment (past 12 months) N
If yes, enter date
Adequacy test date 8/5/24
Results Pass
Fluid depth prior to test 0 in
Water added 600 gal
New fluid depth 1 in
Elapsed time <10 min
Final fluid depth 0 in
Absorption rate 600 gpd
FIELD STATUS – POST RECOVERY
Effective depth (per record drawings) 6 in (MOA 0.5’ ED)
Effective depth used 0 in (Final Fluid Depth)
Effective depth (ED) remaining 6 in
Comments/Deficiencies: Approximate total measured depths from existing grade. ED per elevation measured shots &
appears approximate with 0.5’ ED.
COSA Checklist.docx
E. SEPARATION DISTANCES
From Private Well on Lot to: (Please enter distances if less than required or if community well on lot)
Septic Tank/Lift Station on Lot > 100’
Yes if No ft
Neighboring Tank > 100’ Yes if No ft
Absorption Field on Lot > 100’ Yes if No ft
Neighboring Absorption Fields > 100’
Yes if No ft
Community Sewer Main > 75’ Yes if No ft
Community Sewer Manhole/Cleanout > 100’
Yes if No ft
Private Sewer/Septic Line > 25’ Yes if No ft
Holding Tank > 100’ Yes if No ft
Animal Containment > 50’ Yes if No ft
Manure/Animal Excreta Storage > 100’
Yes if No ft
N/A – Served by Community Well (not on lot) or Public Water
From Septic/Holding Tank and Absorption Field(s) on Lot to: (Please enter distances if less than required)
Building Foundations > 10’ Yes if No *9 ft
Tank to Property Line > 5’ Yes if No ft
Field to Property Line > 10’ Yes if No ft
Water Main > 10’ Yes if No ft
Water Service Line > 10’ Yes if No ft
Surface Water > 100’ Yes if No ft
Wells on Adjacent Lots:
Private Wells > 100’ Yes if No ft
Community Wells > 200’ Yes if No ft
If tank or field is under driveway comment below
F. ENGINEER’S COMMENTS
*PREVIOUS MOA WAIVER – OSV181005
G. CERTIFICATION & 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, indicates that the on-site water
supply and/or wastewater disposal system appears to comply with applicable Municipal and State codes,
ordinances, and regulations in effect at the time of installation, unless noted otherwise.
Name of Firm FIRST WATER CONSULTING Phone 907-350-9566
Engineer’s Printed Name CURTIS HUFFMAN, PE Date 8/14/2024
Comments: This investigation was completed in compliance with MOA guidelines, regulations,
and best industry practices / methods. The assessment of the condition of the well and septic
applies only to the conditions as of the day tested. The flow and absorption rates may change
due to subsurface conditions that may not be observed from the surface, changes in land use,
local soil characteristics, groundwater levels that may fluctuate during the year, quality of
construction (workmanship & materials), the water usage of the family being served by the
system and maintenance. The operational life of all well and septic systems are subject to
these various and dynamic characteristics and are outside the control of the evaluator of the
well and septic system. Therefore, any or NO estimate of how long a system will function satisfactory
for current or future occupants or guarantee that no unseen encroachments, deficiencies or
discrepancies exist can be given by First Water Consulting &
8/14/24
11{
IRIAN, '
✓1 ,:t 8O
•. 6.-,, Municipality of Anchors s u 6 ' 8 9 10 77 °
On-Site Water and Wastewater Progr- 'b iii,' ) ,o
w
(907) 343-7904 , `'� ti; 7 SAF ETY
FEB 2 1 2018 1-
Certificate
Certificate of On-Site Systems Ai oval ti
c Cu
Parcel I.D.
050-762-14 Expirationi5'•=te:8. L —q
—11
1. GENERAL INFORMATION
Complete legal description Mt. Baldy Estates Phase 1 Lot 2
Location (site address) 12850 Golden Eagle Dr
Current Property owner(s)
Troy Davis Homes Inc. Day phone 907-310-2501
Mailing address 1689 Knik Goose Bay Dr #400 Wasilla AK 99654
Real Estate Agent Day phone
2. TYPE OF DWELLING:
0 Single Family (w/wo ADU)
❑ Duplex
❑ Multiple Dwellings (Single Family and/or Duplex)
3. NUMBER OF BEDROOMS: 4
4. TYPE OF WATER SUPPLY: TYPE OF WASTEWATER DISPOSAL:
Individual Well 0 Individual 0
Individual Water Storage ❑ Holding Tank • ❑
Community Class Well ❑ Community ❑
Public Water System ❑ Public Sewer ❑
WaiverNariance request for: Septic field to foundation Distance:
Received by: U,tto6444.4tvAp c Date:
VALL___
COSA to be released to the engineer,unless otherwise requested by the engineer.
COSA Fee $ 0:30 1-qt. Waiver Fee $ 3e/t4 a)
Date of Payment .ataa-llo Date of Payment o2/ -lr4
Receipt Number U 044 3-1) Receipt Number a ti-UM
COSA# 65618105f° Waiver# 05U/V006-
44' 4) la, .
.11( '4. r .
5. STATEMENT OF it
GTIO
EER
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 Firm Forge Engineering 907-522-7773
PO Box 240773, Anchorage, AK 99524
Address
Phone
Engineer's Printed Name Benjamin Schiller, PE Date 2/20/18
....,4......44.4,;kk,
,meg.•
6. DSD SIGNATURE )'k' 49TH... *.voo
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ti
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/C System #1 Approved pproved for bedrooms O *"
r % Ben- in Schiller ' 1�
System #2 Approved for bedrooms CE 12592 .-z,...',.,,?-__;%—
f
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Disapproved f T4,4.'-5.Pe .0'.0
Conditional approval for bedrooms, with the following stipulations:
0
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* ON-SITE 7"
WATER AND
o WASTEWATER o
PROGRAM �� "
o�
By. . .--.1......__k Original Certificate Date: 2 " 9' -1 g
. i
The Municipality of Anchorage Development Services Division (DSD) issues Certificates of On-Site Systems Approval (COSA) based only
upon the representations given in paragraph 5 by an independent professional civil engineer registered in the State of Alaska. The Municipality
of Anchorage is not responsible for errors or omissions in the professional engineer's work.
7. ATTACHMENTS:
COSA Checklist X Nitrate Advisory
Septic System Advisory Arsenic Advisory
Well Flow Advisory Other
COSA blue sheet_f c
If more than 1 septic system is on the lot:
COSA Checklist# of
Structure served by this system
Certificate of On-Site Systems Approval Checklist
Legal Description: Mt. Baldy Estates Phase 1 Lot 2 Parcel ID: 050-762-14
A. WELL DATA
Well type Private If A, B, or C provide PWSID# Well Log (Y/N) Y
Date completed 6/08/17 Sanitary seal (Y/N) Y Wires properly protected (Y/N) Y
Total depth 205 ft. Cased to 43 ft. Casing height (above ground) 24 in.
FROM WELL LOG AT INSPECTION
Date of test 6/08/17 New
Static water level 27 ft. ft.
Well production g.p.m. g.p.m.
WATER SAMPLE RESULTS:
Coliform NEG colonies/100 mL Nitrate 0.597 mg/L
Arsenic ND ug/L Date of sample: 2/9/1 g Collected by: Forge Engineering
*Well was hydrofracked on 6/28/17 and new production was measured at 4.5 GPM.
B. SEPTIC/HOLDING TANK DATA
Tank Type/Material Septic/Steel Date installed 6/2/1 7
Tank size 1250 gal. Number of Compartments 2 Cleanouts (YIN) Y
Foundation cleanout (Y/N) Y Depression over tank(Y/N) N High water alarm (Y/N) N
Date of pumping New Collstr. Pumper
C. ABSORPTION FIELD DATA
Date installed 6/6/17 Soil rating (g.p.d./ft2 or ft2/bdrm) 0.8 System type 5 Wide
Length 150 ft Width 5'0 ft. Gravel below pipe 0.5 ft.
Total depth 6.0 8.3 ft. Eff. absorption area 750 ft2 Monitoring tube Y Depression over field N
Date of adequacy test New Constr. Results (Pass/Fail) For bedrooms
Fluid depth in absorption field before test in. Water added gal. New depth in.
Elapsed Time: min. Final fluid depth in. Absorption rate >= g.p.d.
Any rejuvenation treatment(past 12 mo.) (Y/N & type) If yes, give date
D. LIFT STATION
Date installed Size in gallons Manhole/Access (Y/N)
"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
WELL ON LOT TO:
Septic tank/lift station on lot On adjacent lots
100'
Absorption field on lot 1��� On adjacent lots 100'
Public sewer main X75' Public sewer manhole/cleanout >100'
Sewer/septic service line X25' Holding tank X75'
Animal containment areas X50' Manure/animal excrete storage areas 100
SEPTIC/HOLDING TANK ON LOT TO:
Building foundation >5' Property line >5' Absorption field >5'
Water main >10' Water service line 10' Surface water >100'
Wells on adjacent lots >100'
ABSORPTION FIELD ON LOT TO:
Property line >10' Building foundation 9' Water main >10'
Water Service line 1�' Surface water 100 Driveway, parking/vehicle storage >10'
Curtain drain None Noted Wells on adjacent lots >100'
F. COMMENTS
G. ENGINEER'S CERTIFICATION —,��. '`\\,
I certify that I have determined through field inspections and .�v � •• • C.-AA
'• �
review of Municipal records that the above systems are in *• • � *9,
conformance with MOA COSA guidelines in effect on this date.
IA
Engineer's Printed Name Benjamin Schiller, PE ••. `�► j0 . dr
2/20/18 j •• Benpa E Schiller /
'' CE 12592 • � /
Date �0i'F9;, 17O./J 8•,•..*J.,.(7;•:0
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PLOT PLAN AS BUILT _X SCALE 1" = 100' GRID NW 0355 Project No. 17-048/B6I I 0 /
5�� m D
11500 Daryl Avenue, Anchorage, Alaska 99515-3049 0.� �I�,, in
Lang & Associates n c . (907) 522-6476 Phone 400ppp� o `�' \11q
(907) 522-4625 Fax o F A ��Op� _x o 3' 6},
Professional Land Surveyors kenOlangsurvey.com `:.5c .. ... • ,9 p c^ r—
JonathanOlangsurvey.com • S
_.,0,_/C. .• `\ �00� 2.0' o
I hereby certify that I have surveyed the following described property: a * 49TH / O,, o
LOT 2, MT. BALDY ESTATES, PHASE 1 (PLAT 2006-48)
Anchorage Recording District, Alaska, and that the improvements situated thereon areat ( A ze•o.
within the property lines and do not encroach onto the property adjacent thereto, Q r. Q
no improvements on the property lying adjacent thereto encroach on the surveyed KENN G. •
premises and that there are no roadways, transmission lines or other visible �" • o
easements on sold property except as indicated hereon. Qa s 2V4511$ .•
�ll % '•.LS-5202.••• 5\)p"
Dated this the Day of ��f ,�,,,,�. 7-c ' at Anchorage, Alaska QO'OR0F-r- A\ �o�
It is the responsibility of the owner to determine the existence of any easements, �O`\Oppo�'"
covenants, or restrictions which do not appear on the recorded subdivision plat. AECC963
