HomeMy WebLinkAboutMIDWAY INDUSTRIAL PARK LT 8Onsite File
Midway
Industrial Park
Lot 8
#051-191-68
MOA site visit (3/4/22): No signs that
systems were installed under OSP161309.
Midway
Industrial
Lot 8
Park
#051-191-68
On -Site Water & Wastewater System Permit
C 1
MUNICIPALITY OF ANCHORAGE
Development Services Department n,
On -Site Water & Wastewater Program CAA
L
4700 Elmore Road, PO Box 196650 UcParnncnt
Anchorage, AK 99519-6650
Telephone: (907) 343-7904
Permit Number: OSP161309
Tax Code Number: 05119168000
Work Type: WellSeptic Initial
Permit Effective Dates: October 28, 2016 to October 28, 2017
Design Engineer: GARNESS ENGINEERING GROUP LTD
Subdivision: MIDWAY INDUSTRIAL PARK
Site Legal Address: MIDWAY INDUSTRIAL PARK LT 8 GA 159
Owner/Address: CIG LLC
3852 N CLARK WOLVERINE RD PALMER AK 996450000
Site Mailing Address: Lot Size in Sq Ft: 143774
Total Bedrooms: 3
This permit is for the construction of:
Y Disposal Field Y Septic Tank N Holding Tank N Privy Y Private Well N 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 wastewater code requires inspections during the installation. The engineer must notify the Development Services
Department at least 2 hours prior to each inspection. Provide notification by calling (907) 343-7904 (24 hours).
4. From October 15 to April 15, a subsurface soil absorption system under construction during freezing weather must either:
A. Open and Close on the same day.
B. Covered, sealed, and heated to prevent freezing.
Special Provisions: If changes made to the driveway location in order to meet MOA driveway
codes regarding slope affect the proposed septic system, a change order or waiver may be
needed.
Received E
Issued By:
l 0 1,& zat6
/O Z� 6
MunicipaRity of Anchorage A
ue 11 tt
Development Services Division
On -Site Water and Wastewater Program
* * * * VARIANCE/WAIVER REVIEW * * * *
Waiver#: OSV161127 COSA#
PID#:051-191-68
Legal Description: Midway Industrial Park L8
Engineer: Garness Engineering Group
Applicant: North Country Builders
Permit#: OSP161309
Your request for a waiver of the required 50 feet horizontal separation from the absorption field
to the excessive slope has been approved. The approved separation distance is 0.0 feet.
This waiver approval applies to the proposed 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.
❑ The affected adjacent property owner(s) have been given a 7 day notice regarding this
waiver.
❑ Notarized letter(s) of nonobjection have been received from the owner(s) of the affected
adjacent property.
® Adjacent properties are not affected by this waiver.
................................................•.............................1
Waiver is Granted: X Waiver is not Granted:
Date: lC �Ca Approved by:
Name of Reviewer
..................................................... .....:..................r
**** VARIANCE/WAIVER REVIEW ****
MUNICIPALITY OF ANCHORAGE
Community Development Department
Development Services
On -Site Water & Wastewater Program
Mayor Dan Sullivan
On -Site Sewer/Well Permit Application
For A Single Family Dwelling
Parcel 1. D. 051- tot l' dog
Property owner(s) NORTH COUNTRY BUILDERS
Mailing address 3435 N DAISY PETAL CIRCLE, WASILLA, AK 99654
Site address MT. ASH DRIVE, CHUGIAK, AK 99567
C
OCT 1 9 1fJ
t
Phone: 907-343-7904;/
Fax: 907- 343-7997
Day phone 232-3751
Legal description (Sub'd, Block & Lot) MIDWAY INDUSTRIAL PARK S/D; LOT 8
Legal description (Township, Section & Range)
Lot Size Sq.Ft.
APPLICATION IS FOR:
( ® all that apply)
Absorption Field
Septic Tank
Holding Tank
❑
Privy
❑
Private Well
Water Storage
❑
Number of Bedrooms 3
APPLICATION IS AN: TYPE OF DEWELLING:
Initial ® Single Family (SF)
Upgrade F-1(w/wo ADU)
Renewal
Duplex (D) ❑
F-1
Multiple Dwellings ❑
(SF and/or D)
THIS APPLICATION INCLUDES A VARIANCE/ WAIVER REQUEST FOR:
SLOPE WAIVER (SLOPES GREATER THAN 25%) Distance: 0 FEET
I certify that the above information is correct. I further certify that this is in accordance with
applicable Municipal codes.
GARNESS ENGINEERING GROUP, Ltd.
(Signature of property owner or authorized agent)
Permit/Rush Fees: 50 +215 = '734
Date of Payment: 10-11�1Q`
Receipt Number: OJBI$ G
Permit No. OSi?Ilo1"
Waiver Fees: X215
Date of Payment: /0 2 711K
Receipt Number:
Waiver No. 0.4161127
(Rev. 01/11)
s r
s1amfi�IC!�:::.
` kt
cae_mmwn.+W�.2!nlee�v::cv:wu:as`.viauit�,:e � raaxamvurtnr 'nxasmv awwxx.tin:w.wr.
zacv__cvwaa-. asuavuxcvx_
GARNESS ENGINEERING GROUP, Ltd"�""'�
�.� CIVIL&ENVIRONMENTAL ENGINEERS"=��=='"�*�*�__`_� '�
October 13, 2016
Municipality of Anchorage
Development Service Department
On -Site Water & Wastewater Program
4700 Elmore Road
Anchorage, AK 99507
Ref: Proposed Well and Septic System for Midway Industrial Park S/D; Lot 8
To whom it may concern:
The proposed 3 bedroom house is to be served by a private well and septic system. Two test
holes were excavated on the property. The primary drainfield and alternate site have been
designed around the 30 foot radius of the test hole #1 (see site plan). We are proposing that a
1000 gallon septic tank and a 5 -wide type drainfield be installed for this property. The proposed
well is to be drilled as shown on the attached site plan. Comments regarding the design are
summarized as follows:
1. SOILS: See the attached logs which shows the soil classifications, groundwater monitoring,
and the percolation test results. The percolation rate for TH#1 was 1.1 minutes/inch which would
require the use of a 1.2 gpd/sq.ft application rate.
2. DRAINFIELD DESIGN: See attached design drawing for drainfield specifications.
3. SURFACE WATERS: There are no surface water concerns.
4. TOPOGRAPHY AND SLOPE WAIVER: Based upon the topography information provided
by S4 Group, the topography in the area of the proposed drainfield averages 40% percent
running approximately Southeast to Northwest. We are proposing to use the Approved
Revisions to the wastewater code for this installation. We have attached a copy of the Steep
slope disposal fields section for you review (pages 29 & 30 of 62). Based upon this code, Deep
Trench and Wide Trench disposal field may be installed on slope greater than 25 percent, but
less than 46 percent. As can be seen on the profile drawing of page 3 of 3, our proposed design
is using a non -mounded Wide trench that is 12 feet deep on the up -gradient side of the disposal
field, with a effective depth of 4 feet, and a maximum trench width of 5 feet. This meets
requirement #1 and #2 of this section. There is natural vegetation 50 feet downgradient of the
proposed trench and it shall remain undisturbed. This meets requirement #3 of this section. The
distribution pipe invert will be greater than 36 inches below the top of the natural organic layer
measured on the downhill side. This meets requirement #4 of this section. Based upon these
justifications, it is our opinion that we have provided sufficient information to show that we have
meet the requirements of the revisions the wastewater code and we request this waiver be
granted.
3701 East Tudor Road, Suite 101 "Anchorage, Alaska 99507-1259
Phone: (907) 337-6179 * Fax: (907) 338-3246 * Website: www.garnessengineering.com
Page 2 of 2
We are unaware of any adverse impacts this installation would have on adjacent wells or septic
systems. If you have any questions, please contact us at 337-6179. Thank you for your
assistance. n
P.E., M.S.
3701 East Tudor Road, Suite 101 *Anchorage, Alaska 99507-1259
Phone: (907) 337-6179 * Fax: (907) 338-3246 * Website: www. garnessengineering.com
tRB Review
15 65 TRB Aoproved Revisions track chanoes accepted 062816_`.—„�-."mPrT,a2d
ehapipes
not be installed where the slope of the natural ground
surface is greater than 10 percent
C. Topographic depressions. A subsurface disposal
field shall not be constructed in a natural or man -made -
q depression where surface water can pond. - - - -- -
4. Steep slope disposal Fields. Except as modified by this sub-
__
section, steep slope disposal fields shall comply with the - -
chapter.
a. General. A Deep Trench or non -mounded Wide
Trench disposal field may be installed on a slope
greater than 25 percent, but less than 46 percent if it
complies with the following conditions: -
i. Vertical separation distances below the disposal
field shall be measured from the bottom of the
drainrock at the up -gradient side of the disposal - -
field,
ii. Trenches shall not exceed 60 inches in width -
iii Natural vegetation within 50 feet down -gradient
of the disposal field shall remain undisturbed or - -
the exposed slope shall be stabilized with -
erosion control vegetation or an approved equal - --
prior to final operational approval,
iv. The distribution pipe invert shall be a minimum - - -
.:� 36 mc`tesbelow s top of t^e natural orga,i..
surface, measured on the downhill side of the
trench,
-—Op with
For Wide T-ench dspos l fields
with a maximum effective depth of 6 inches, the
distribution pipe invert may be less than 36
inches below the top of the natural organic layer - -
measured on the downhill side of the '
excavation, if:
1. Filter sand is placed below the disposal field
to the deeper of: -
a. 36 inches below the top of the native
organic layer; or
b. To the too of the soil laver used for
absorption;
Page 29 of 62
15 65 TRB Aooroved Revisions track chances accepted 062816'' -.6S ° wcv
{2�visieeaa,thaRgeTo�a<?`�'--6.ds
or
2. An engineer's evaluation demonstrates, to the
satisfaction of the department, that the
proposed distribution pipe elevation would not
result in daylighting effluent down -gradient of
the disposal field. The report shall include all
pertinent geological, geotechnical, and
hydraulic information necessary to justify the
requested separation distance.
and
v
The disposal field shall be a minimum of 100
feet up -gradient from any slope exceeding 46
percent.
Exception: Less than 100 feet separation may
be allowed if an engineer's evaluation
demonstrates, to the satisfaction of the
department, that such an encroachment would
not result in daylighting effluent down -gradient
of the disposal field. The report shall include all - -
pertinent geological, geotechnical, and _
hydraulic information necessary to justify the - -
requested separation distance. -
b. 30 minute -pe: -inch (rnpi) to 60 rnpi soils: _
I. The hydraulic loading rate shall be no greater
than 50 percent of the required raze for disposal--- - --.- ' --
fields located on slopes less than 25 percent,
ii. Parallel disposal field's up -gradient or down-
grameni from each other that could be pu i Into
service or operation at the same time shall be
separated by at least 30 feet, -'
IN. The disposal field shall be time dosed and the -
flow shall be uniformly distributed over the
trench.
V. For gravity distribution, flow shall be equally _
distributed to trench segments not to exceed 20
feet in length.
60 rnpi to 120 mpi sells: -
Page 30 of 62 -
DESIGN CRITERIA:
NUMBER OF BEDROOMS: 3
GALLONS PER DAY (GPD)'. 450
PERCOLATION RATE/S: 1.1 MINUTES/INCH
PROPOSED APPLICATION RATE. 1.2 GPD/SO.FT.
MINIMUM DRAINFIELD SO.FT.: 375
DRAINFIELD DESIGN.
MAXIMUM DEPTH'. 12 FEET @ ANV POINT
WIDTH: 5 FEET
LENGTH: 40FEET
EFFECTIVE'. 4 FEET
REDUCTION FACTOR. 0.50
ACTUAL SD.FT.: 400
SEPTIC
DRAINFIELD /
SEE
GEG, Ltd. HAS A 8 PAGE SPECIFICATION
LETTER THAT PERTAINS TO THIS DESIGN. TO
OBTAIN A COPY OF THE LETTER CONTACT
GEG. BY PROCEEDING FORWARD WITH THIS
INSTALLATION, THE ENGINEER, WELL DRILLER,
CONTRACTOR AND PROPERTY OWNER AGREE
THAT THEY HAVE READ THESE
SPECIFICATIONS AND AGREE TO ACCEPT THE
TERMS AND CONDITIONS OUTLINED.
PROPOSED
88EDROOM
HOUSE
FOUNDATION
1 CLEANOUTS ko
"NOTE
\ IA
PROPOSED WELL 11
� A
N
ONTRACTOR SHALL HAVE THE
OT LINE AND THE 100 FOOT SCALEDIUS FLAGGED/STAKED BV ARED LAND SURVEYOR PRIOR 1' =40'
CONSTRUCTION.
GARNESS ENGINEERING GROUP, Ltd ;` 4q
.... •.
q
CIVIL & ENVIRONMENTAL ENGINEERS
3]01ETUDOR ROAD, SUITE 101'ANCHORAGE, AK 99507'PHONE (907)337-6179'FAX (907)330-3246'WEBBITE'. w.wegamessengineenngmm 1'Y• • .1 .
••• b
PREPARED FOR'. PHONE NUMBER: PAGE NUMBER: (� ; ey A G rness••r•4
NORTH COUNTRY BUILDERS 232-3751 2 OF 3 J CE -795
PROJECT/LEGAL DESCRIPTION: DRAWN BY •� I V1IlJ•(✓�:0
MIDWAY INDUSTRIAL PARK S/D; LOT 8 J.L.M. �1� FQ P' •••3•• Jf♦P
TYPE OF WORK: DATE: LICE NS\\ill,
DESIGN OF PROPOSED WELL AND SEPTIC SYSTEM 10/13/2016 #AECC884
1 ■�
FEET
4' MONITORING TUBE
CLEANOUT
--------------------
�
I
I }
i' WI IDE
I
L__ ______
_
_______ __J
4" CLEANOUT
4" MONITORING TUBE
DESIGN CRITERIA:
NUMBER OF BEDROOMS:3
GALLONS PER DAY (GPD): 450
PERCOLATION RATE/S: 1.1 MINUTES/INCH
PROPOSED APPLICATION RATE: 1.2 GPD/SQ.FT.
MINIMUM DRAINFIELD SQ.FT.: 375
DRAINFIELD DESIGN
MAXIMUM DEPTH: 12 FEET @ ANY POINT
WIDTH: 5 FEET
LENGTH: 40 FEET
EFFECTIVE: 4 FEET
REDUCTION FACTOR: 0.50
ACTUAL SO FT: 400
RESERVE
`CONNECT INTO MIDPOINT OF TRENCH
ANY
4' OF
J T rGROUNDWATER
PRIMARY SITE 4l+ AT 16'-3" ON
_t 10/10/2016
SCALE
®
1"= 10'
GARNESS ENGINEERING GROUP Lt 49
-N
CIVIL & ENVIRONMENTAL ENGINEERS
............... • /)r
3701 E. TUDOR ROAD, SUITE 101 ANCHORAGE. AK 99507 -PHONE (907)337-6179- PAX (907)336-3246-WEBSII mw agamessengineenng mm 0••••n..... ••••••••••••••/.••••••••�...I
PREPARED FOR: PHONE NUMBER: PAGE NUMBER: '1':• effrA�Garness i W
NORTH COUNTRY BUILDERS 232-3751 3 OF 3 ����JJ '/CE -[19 5 : �
PROJECT/LEGAL DESCRIPTION: DRAWN BY'.
VICE y (b.• •���
MIDWAY INDUSTRIAL PARK S/D; LOT 8 J.L.M. X14 FQ p' ••••••• • P�
TYPE OF WORK: DATE'. #to ROFESS\
DETAIL/PROFILE OF PROPOSED DRAINFIELD 10/13/2016 #AEC 8sa
GARNESS ENGINEERING GROUP, Ltd
CIVIL & ENVIRONMENTAL ENGINEERS
3701E. TUOOR ROAD, SUITE 101 'ANCHORAGE AIR 99507'PHONE(90713374179' FA (907)338-3248'W 65ITE, w+nr.9amessen9ineennp com
SOIL LOG - PERCOLATION TEST
LEGAL DESCRIPTION: MIDWAY INDUSTRIAL PARK S/D: LOT8
PERFORMED FOR: NORTH COUNTRY BUILDERS DATE: 10/3/2016
DEPTH �
(feet) ORGANICS ITEST HOLE #1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
GP -GM
W/ OCCASIONAL
BOULDERS
08"-24" IN SIZE)
S
SOIL CLASSIFICATIONS
DEPTH TO
GROUNDWATER
DATE
..
�.
17'-2"
10/4/2016
INIIIIII
10/10/2016
2
1121191
0"
MONA
3
i%//.
4
6.5
�
6"
5
111111111
6"
�
^Qi[Y}`SZ1
6.5
WyMpA
6"
0111111
V",
aroma
6.5
0"
DEPTH TO
GROUNDWATER
DATE
DRY
10/3/2016
17'-2"
10/4/2016
16'-3"
10/10/2016
2
6.5
I�WAIk
DATE READING
CLOCK NET TIME
TIME (MINUTES)
WATER LEVEL
READING
NET DROP
(INCHES)
10/4/2016 1
6"
-
2
6.5
0"
6"
3
6"
4
6.5
0"
6"
5
6"
6
6.5
0"
6"
7
6"
8
6.5
0"
6"
9
6"
10
6.5
0"
6"
11
6"
12
- 6.5
0"
6"
19 :1 PERCOLATION RATE 1.1 (MIN./INCH) PERC. HOLE DIA. 6 (INCHES;
•" TEST RUN BETWEEN 7 FT. AND 8 FT.
20 • "•:
B.O.H. A FOUR HOUR PRESOAK WAS PERFORMED: ❑ YES E NO
SOILS LOGGED BY: JODYMAUS PERCOLATION TEST PERFORMED BY: JODYMAUS
COMMENTS: PERCOLATION READINGS ARE WITHIN 1/16 OF INCH.
PERFORMED BY GEG, Ltd. I, JEFFREY A. GARNESS, CERTIFY THAT THIS WAS PEMED IN ACCORDANCE
FO
WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE: / 0 6