HomeMy WebLinkAboutMCMAHON BLK 1 LT 17McMahon
Block :1.
Lot
#017-041-35
Municipality of Anchorage
Development Services Department
Building Safety Division
On-Site Water and Wastewater Program, 4700 S. Bragaw St.
P.O. Box 196650 Anchorage, AK 99519-6650
www.ci.anchorage.ak.us (907) 3,43-7904
Page I of }
ON-SITE WASTEWATER DISPOSAL SYSTEM AND/OR WELL INSPECTION REPORT
Permit Number: S~)J (~'~-~ PIDNumber: ¢~"~-
Name: C;~ ~**~ Wa,tewat~r Sy,t~: ~New ~ Upgrade
~ .....%~ ~ t ~ ~ ~om ~, ABSORPTION FIELD
Phone: ~ __ ~ ~ ~ ~ ~ Num~rofBedro .... ~eepTren~Shal,ewTmnch~Bed ~M~nd ~Other:
Soil Ra~g: Total Dep~ from original grade:
LEGAL DESCRIPTION O~ ~ ~,~ ~ ( / ~.
Bl~k: Lot: Su~iv[sion: Depth to pipe ~om from odginal grade: Gravel depth beneath pipe:
Gravel Length:
Township: ~tH Range: ~ S.ti*: ¢8 Fill added ab°ye °figina[ gmde:o,5 Ft. SZ. r Ft.
U Number of lines: Distan~ ~t~en lines:
Well: ew ~ Upgrade Gravel width: ~ Ft. I ~A Ft.
Classi~tion (Pdva~e, A, B, C): Total Depth: Cased to: Total absorption area: Pi~ Matedak
Date Ddlled: S~tic Water Level: Installer:
Yield: GPM Pump Set at: Casing Height ~ove Ground:
o~o~ ,,. ~ ,,. TANK
SEPA~TION DISTANCES ~Septic ~ Holding ~ S.T.E,P. ~ Other:
Septic Abso~tion Lift Holding Oublic/Pdvate Manufacturer: ~ Capaci~:
Tank Field Station Tank Sewer Line ~ ~ Gal,
~ -- -- ..... ~ ~ LIFT STATION
, ~ ~ ~ Gal.
Pump Make & Model Electri~l Inspections petered by:
~~mq ~~ ~ BENCHMARK
Lo~tion and Description:
Engin:((~am )
Inspections pefiormed by: ~v;~ ~l~m~ ~Dates: 1st >~O~ ~ ~ a~~
Developmem Se~ices Depa~ment Approval * ~ ,o~
Reviewed and approved by: ~ Date: /~//~/¢~ '~ ~, :%
Well
Surface Water
Lot Line
Foundation
Curtain Drain
Remarks:
Municipality of Anchorage
Development Services Department
Building Safe~ Division
On-Site Water and Wa~ewater Program
so t,
(907) 343-7904
.
Soils Log Percolation Test
Peffo~ed For F~ t ~ Date
LegaIDesc,ptio.: L,o F ~, ~ O~ t
Depth
(Feet)
2-
3- ~'
11_ ~--
12-, .-.
13-
15- ~-
16- -
18-
19-
20-
COMMENTS
Slope
Township, Range, Section: T'- ~ ~/~
Site Plan
WAS GROUND WATER
ENCOUNTERED?
$
IF YES, AT WHAT DEPTH? ~ L
O
Depth to Water After p
Monitoring? / E
Date:
Reading Date Gross Time Net Time Depth to Water Net Drop
PERCOLATION RATE '~ (~ (minutes/inch) PERC HOLE DIAMETER
TEST RUN BETWEEN ) ~ FT AND j"~ FT
PERFORMED BY: ~.O~f, F--i t.,, ~/~ ~ 43 CERTIFY THAT THIS TEST WAS
PERFORMED IN ACCORDANCE WITH ALL STA~.~E AND MUNICIPAL GUIDELINES IN EFFEC'qr ON THIS DATE. DATE: ~ ¢ ~ ¢ ~-
Z.; f ~,: oo f~ 0
/'
CONSULTING ENGINEERS
hq
.....................
..... ~ ·
~ qo° oo' oo" F_
p.u9
~o/o~/~
L
'OV'lV ' t~ OI!LL qllA', e;n!!dtuoo (lj!nq-~)
(e)eJnionJlS aql jo uo!J~OOl oq/
00'0£
00'0£
03'L~' I. _3.00,00.06N
V~[L!V gO 'J,d'bs Og~'7, g SVIt LI
3.00.00.06N
Parcel Identification Number:
Is welt loealed at appiaaved {~rnu:
G~g
3~ McMahon A~
A~ho~e, AlasRe ~5~ ~
Depth {ft) 5teth~ of DHlling ~ air rk:ta~,
From
0 2 Wall Thickness: .2~ inches
2 ~ Diameter: ~ inches Depth:
4 ~5 Liner Ty~: ~
~5
Casing sfie~a~p a~ve ~nd: ~ ~e~
6~ 7:3 Static water l~et (i?om ~und
~ 13 115 ~ hours pumping ~ ~m
frs ~16 :R~ove~ ~t~
Meth~ of T~fing:
W~I :inl~ O~nmg
~: Opm End ~ ~m~ Hole
~ Pe~mtmns S~ feet St~
Gmat Ty~: ~entomte ~anu/ex V~u~:
D~th: $mnQf~
Pump: 'Intake Depth
Pump size hp Brand Name
%'alt D~inf~t~ Upon Com~tefion?
W~I Driller: Aloine Dntting
PO ~x ~
Anchorage Atas~a 995t
Attention: 'Dm ~vctl driller shall provide a well log to the property owner within SCi days o~:comp e:ion a~ld rt'~ 2ropecrv
November 7, 2002
Municipality of Anchorage
Building Safety Division
On-Site Water and Wastewater Program
4700 S. Bragaw Street
Anchorage, Alaska 99519-6650
Attention: Mr. Jim Cross
Manager
Subject:
Lot 17, Block 1, McMahon Subdivision
On-Site Water and/or Wastewater Permit
Permit No. SW010470
Dear Mr. Cross:
Please reference your letter dated October 7, 2002 regarding the subject permit. Attached
is the requested information to provided the necessary information and obtain final
approval for the on-site sewer system. Enclosed are the following documents for your
review and approval:
1. Inspection Report
2. Additional Percolation Test
3. Trench Length Adjustment Calculations
4. Asbuilt location plan
5. Asbuik Survey Plan
6. Well Log
The construction of the sewer system was inspected three separate times. The first
inspection was completed to confmn the receiving soils and perform an additional perc
test. The second inspection was for trench excavation, placement of sewer rock, pipe and
backfill of the absorption trench. A final inspection was completed for tank placement
and fill materials.
Thank you for your letter. Please call me at (907) 694-2332 if you have any questions.
Attachments
George P. Wuerch,
Mayor
October 7, 2002
Anchorage
Municipality of Anchorage
Ali.America City
2002
Rodney P. Kinney Jr.
10144 Lee St.
Eagle River AK 99577
S ubj e ct:
On-Site Water and/or Wastewater Permit.
Permit Number: SW010470
Legal DeScriPtion: McMahon Block 1 Lot 17
Dear Rodney P. Kinney Jr.:
An On-Site Water/Wastewater Permit, number SW010470, issued by this office for a single-family
system, will expire on November 16, 2002. This permit was valid for 365 calendar days.
If this was a well permit and the well has been ckilled, a well log must be sent to this office for
documentation of the installation and to close the permit.
If this permit was for a wastewater disposal system, an original as-built inspection report must be sent to
this office for review, approval and documentation. This as-built inspection report must be signed by
the licensed Professional Engineer who inspected the installation of the system. As-built inspection
reports are required to be submitted within 30 days of the completion of the system.
If no system was installed under this permit, and you are still planning to install a well or wastewater
disposal system, a new permit must be obtained from this office. A new permit for a second year may
be issued for a fee of $100.00 if the renewal application is received on or before the expiration date of
the original permit.
When applying for a new permit, the fees are: $400.00 for a wastewater permit and $150.00 for a well
permit,
If you have any questions, please call this office at 343-7904.
On-Site Water and Wastewater Program
Ene: Copy of permit
P.O. Box 196650 · g~nchorage, Alaslm 99519-6650 ° Telephone: (907) 343-8301 · Ftux: (907) 343-8200
4700 South Bragaw Street ° Anchorage, Alaska 99507
http://www.ci.tmchorage.ak.us
MUNICIPALITY OF ANCHORAGE
Development Sen/ices Department
On-Site Water & Wastewater Program
4700 South Bragaw Street
P.O. Box 196650, Anchorage, AK 995'1g-6650
(907) 343-7904
ON-SITE WASTEWATER DISPOSAL SYSTEM I WATER SUPPLY PERMIT
Initial
Date Issued: Nov 16, 2001
Expiration Date: Nov 16, 2002
Permit Number: SW0'10470
Legal Description: MCMAHON BLK 1 LT 17
Design Engineer: 0018 Rodney P. Kinney Associates
Owner Name: Rodney P. Kinney Jr.
Owner Address: 10144 Lee St.
Eagle River, AK 99577-
This permit is for the construction of:
~ Disposal Field ~ Septic Tank
[] Holding Tank
Parcel ID: 017-041-35
Site Address: 003901 MCMAHON AVE
Lot Size: 32450 SQ. FT.
Total Bedrooms: 3 Permit Bedrooms: 3
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.
5. The following special provisions.
AT THE TIME OF CONSTRUCTION THE ENGINEER SHALL PERFORM ANOTHER PERCOLATION TEST IN THE
'GRAVEL & SAND WITH SILT' LAYER BETWEEN 10 AND 17 FEET PRIOR TO CONSTRUCTION OF THE
ABSORPTION TRENCH.
Received By:
Issued By:
Date: I J- / (~ -" O !
Date: //--/~/
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/"VVELL PERMIT APPLICATION
FOR A SINGLE FAMILY DWELLING
O
Parcel I.D.
Permit Number SW O/o~TE:~
Property owner(s) o - . ~ -
Mailing address (1) ('(~l~l~l (~¢ ST -
Mailing address (2)
Legal description (Lot, Block & Sub'd.)
Day phone
Legal description (Section, Township & Range)
Lot Size ~,'7~ 5- ,~.~ ~.~Acres~
THIS APPLICATION IS FOR:
Sewer Only []
Sewer and Well
Sewer Upgrade []
Zip Code
Number of Bedrooms
Well Only []
Water Storage []
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 Tn accordance with applicable Municipal Codes.
(SigCu4g~o~ property owner or authorized agent)
Permit Fees:
Date of Payment:
Receipt Number:
(Rev. 12100)
Waiver Fees:
Date of Payment:
Receipt Number:
November 9, 2001
Municipality of Anchorage
Department of Health and Human Services
4700 S. Bragaw Street
Anchorage, Alaska 99519-6650
Attention: Mr. Jim Cross
Subject:
Request for Review and Approval for
Onsite Water and Wastewater
Lot 17, Block 1, McMahon Subdivision
Dear Mr. Cross:
Please reference your On-site Sewer/Well Submittal Comment Sheet dated November 5,
2001. We have made the following revisions to the subject design:
1. The maximum depth of the trench is 11 feet.
2. The maximum depth of the tank is 4 feet.
3. The test hole radius of 30 feet is show on the site plan.
Both the well and the septic system is proposed (they have not been constructed).
We have attached all of the originally submitted documents in addition to the revised site
plan and detail sheet.
Please call me at 694-2332 if you have any questions or need additional information.
Si~frely,
R inney
October 30, 2001
Municipality of Anchorage
Department of Health and Human Services
4700 S. Bragaw Street
Anchorage, Alaska 99519-6650
Subject:
Request for Review and Approval for
Onsite Water and Wastewater
Lot 17, Block 1, McMahon Subdivision
To Whom It May Concern:
We respectfully request your review and approval to construct the subject well and septic
system. Attached are:
1. A site plan with stamp and original signature of engineer.
2. Design and calculations with stamp and original signature of engineer.
3. Results of soils, percolation and water table test with stamp and original signature
of engineer.
An onsite water and sewer system is proposed for a new 3-bedroom house. Onsite sewer
systems and water wells are located on adjacent lots to the north, west, and east and to the
south across McMahon Avenue, reference attached site plan.
The ground surface slopes across the lot from east to west, varying approximately to 5 to
10 percent. Onsite surface runoff is directed to the west. This drainage condition is to be
maintained after construction is completed. A significant amount of reserved space will
be provided on the northern side of the lot for replacement or modification of the disposal
field.
No groundwater or bedrock was detected at the time of excavation on September 30,
2001. Also, groundwater was not detected during our October 7, 2001 site visit. We do
not anticipate any impacts to adjacent properties.
Please call me at 694-2332 if you have any questions or need additional information.
Rodney P. Kkhney, ~r., P.E~.
· ~\r S89"54'56"W t46,92'
LOT ¢ 7
, ', / ,~ .... ,--~...,.,~ 5' \ ~ N
,..0~/ ~ =, 50.9 , I~ ~' L
~ .,' : , ~1 ~ ~ ~ [ ~R-"A~-
~ · ' ~ ~<.~ ~../O~ .... ~, u ~hx u=
_ _.'~ :: ~'~=;-- LtASIS OF BEARING~ /- ~ ~ F ~Y
.......... ~ :tF3~ ~,,, ,% % .....................~ST,,.1~7.79~ ..... ;'...,, ............ If'~. ,~. ~. ~ .........;-(~
~, ", , 1~7.50 REO~ PER MCMAH~ ~BD. pLAT ~ ~ ' ' :
.............. , ................ : ................. ........ :: ........ :.,: .... ,~._.~ ....... :......: ........ ,..J ............. : ........
Lot !7, Block 1
MCMAHON SUBDIVISION
Grid: 2835
%ca~e: 1"=50'
Date: ! 0-~29T 01
I/I i /71/////?/ /////!//~
?o u S~'
w ~¢", ' ' ,-'
DE?ART,MENT O" -,EALTH'& HUMAN SERVIC2 825 "L" Street. '.~u:hora§e, Alaska 99502-0650
SOILS LOG -.. PERCOLATION TEST
, ~;~ ' . ) ~
--- DATE PERFORMEDJ
Township. Range, S ~ction:
SLOPE SIT~ PLAN
TtST- ?
ENCOUNTERED?
I'----
~--
Net Oeplh to
Time Wa~er
Net
Job No.,
TYPICAL WIDE DRAINFIELD
INSTALLATION
(FIVEWIDE)
Cleanout 1' tO 4' o
perforated pipe laid level
{pads. down)
G~avel ~d '
1~ mtn.- 4r ma~ H
' throug~t gm~l ~e~lh
not ~nn~
d~dbuflon
beginning of
dtainlleld. Monitoring lube Insteliod to
bottom ol dratnlleld end
berlorated throughout gravel
depth, not connected to
' peflom~ed dhfflbutlon IIn~,.
Clea~t at end of
drai~Ibld.
GROUND
TYPICAL WIDE DRAINFIELD DESIGN
(FIVE WIDE)
lEND VIEW} Surlece mounded to i~um drainage
/ NAIVE SOIL BACKFILL / /
/ ~4" minimum- m~t ~ / /
P~e; IMa~mum 4r -
Must hive minimum Of tw~ (21 lust O! ~ ~
ar.r. aating ~t strata ~t~ 0mlnllMd [ E
~ Rock or DiOr amiable B~r v
SAMPLE WIDE DRAINFIELD CALCLq. ATIONS
150 Sa. Ft,/Bedroom x Number of Bedrooms
Aol31icatton Rate CGallonlDavlSu. Ft.) ' x Reduction Factor = Length , .
5' (Width) ~.: ·
NOTE: Reduction factor'shown on Page 20 of Septic Tank Manual and on reverse side of this page. ~__:.'
Example: 4 Bedrooms - Percolation Test Rate of 7 minutes/inch - soil strata from 4' to 9'.
Use 36 inches ** of sewer rock - R.F. = 0.Se (from table on reverse side of this page) ,~ .....
IS0 Sa. Ft./Bedroom x 4 Bedrooms ~.~ '~...:..,
Length = ,8 GPO/SD. Ft, (From table on reverse side of this DaDo) x .SB = 87 Feet
~' (Width)
Use two (2) dratnftelds, each 44 feet tong, 5 feet wide, 36 inches of sewer rock below perforated pipe.
The dralnflelds must be a minimum of 113' apart. (Maximum length of 100 feet)
· Use application rate shown on reverse side of thts paged
· * A grovel depth of 36 inches would place the bottom ot the absorption field at a total depth of 7 feet. This
total depth also satisfies requirement of a minimum of 2 fret of accepting soil below the absorption field bottom,
Municipality of Anchorage
DEPARTMENT OF HEALTH & HUMAN SERVICES
Environmental Services Division
825"L" Street, Room 502 · Anchorage, ALaska 9@501 · (907) 343-4744
TYPICAL WIDE,DRAINFIELD REQUIREMENTS AND SPECIFICATIONS
,.-AMC. 15.r35
PERMITTING
A permit must be obtained from the Municipality of'Anchorage, Department of Health and Human Services
to modify, upgrade or install an on-site wastewater disposal system.
TWO INSPECTIONS ARE REQUIRED BY A REGISTERED CIVIL ENGINEER
1. When all excavating is completed. '~
2. When the septic tank is installed and the system is ready to be backfilled.
SEPTIC TANK REQUIREMENTS
1. · Municipality of Anchorage approved, two compartments - installed level, with a minimum volume of
1000 gallons plus 250 gallons for each bedroom over 3.
2. Watertight couplings on inlet and outlet.
3. Manholes must be equipped withwatertight gaskets.
4. Five (5) feet minimum.undisturbed soilbetween the tank and trench, and the tank and foundation.
5. Tank must be insulated if buried four (4) feet or less.
6. Tank and solid pipe must be set on well compacted, stable soil.
7. Four (4) inch diameter cleanouts with airtight caps are required:
a. one (1) to four (4) feet from foundation wall; and
b. prior to any pre-tank ninety degree bends in 4 inch line, and
c. in each tank compartment; and
d. two adjacent opposing cleanouts between the tank and the absorption field not more than 10 feet
from the tank po~ifionedt-opm~ide cleanout access towards the tank and towards the absorption
field.
8. All cleanouts must extend to at least ground level.
9. In solid pipe.mns,.AS'FMD,31~34 may be used in lieu of cast iron. .
10. Tank must be cleaned and pumped at least once every two (2)'years or'inspected to determine the
need for cleaning and pumping at least once each year.
11. Tank must be installed at a site accessible year-round to a pumping truck. The access site for the
pump truck must not be further than one-hundred (100) feet from the tank at an elevation not more
than eleven (11) feet higher than the bottom of the tank.
SUBSURFACE DISPOSAL FIELD
1. Wide drainfield must be'~installed parallel to the slope contour.
2. Wide drainfield not to be installed on a slope greater than twenty-five (25) percent.
3. Single drainfield length (including laterals and extensions) shall not exceed one hundred (100) feet.
4. Gravel depth below pipe must be no more thant forty-eight (48} inches.
3/~5
5. Gravel depth over perforated pipe must be two (2) inches minimum.
6. Gravel must be one-halt (1/2) inch to two and one-halt (2-1/2) inch screened.
7. Wide drainfield bottom must be level throughout entire length.
8. Gravel must be distributed uniformly ~thr. oughout.th..e..._v/jde drainfield.
10. Silt barrier material must be installed above the final gravel layer and below the native soil backfill.
Insulation material will serve as a silt barrier,
11. Smeared wide drainfield sidewalls and bottom must be raked or scarafied before gravel placement.
12. Insulation must be installed when backfill depth is less than thirty-six (36) inches.
13. Backfill over final gravel layer must not be 'less than twenty-four (24) inches.
14. The finish grade over an absorption field must be mounded to prevent the formation of a depression
after settling.
15. A wide drainfield may not be installed in soil having a percolation rate faster than one (1) minute pe~
inch without a sieve analysis showing fifty-one (51) percent or more passing a #4 sieve,
16, Insulation must be placed over any pipe installed under driveways or parking areas.
17. There must be a minimum of four (4) feet of vertical separation between the bottom of the wide
drainfield and the s~as0nally high. groundwater table.
18. There must be a minimum of six (6)feet of vertical separation between, the bottom of.
drainfield-andTeny-~perme~able~barrier such as bedrock, fractUred'or weathered bedrock
. material with a percolation rate greater than 120 minutes per inch.
SETBACK REQUIREMENTS
Septic tank to:
A. Property line or foundation = five (5) feet.
B. Water main or service line = ten (10) 'feet.
C; Any surface water, major drainage, or single family water supply well = one hundred (100) feet.
D. Class A or B water supply well = two hundred (200) feet,
E..-Class~C-watersupply-weil-=-onehundredand.fLfty (150) feet.
Su bsudace_dispos_al_f, ield to:
A. Septic tank = five (5) feet..
B. Property line = ten (10) feet.
C. Water main or service line = ten (10) feet.
D. Any building or structure foundation = ten (10) feet.
E. Uphill from any cut-bank or change in slope to twenty-five (25) percent or more = fifty (50) feet.
F. Uphill from a curtain drain = fifty (50) feet.
G. Downhill from a curtain drain = twenty (20) feet.
H. Twice the gravel depth below the perforated pipe or ten (1[}) feet, whichever is the greater, from any
existing or abandoned subsurface disposal field.
3195
OUII£I S~DE
INLET/OUTLET fJAFFL E C L EAf?ANCE DE MIL
\
END vIEW
MANHOI E COVER DETAIL
NT$
NOZZI E DETAIL
NO TE5
Job No.,
LOT ~ 7
(WEST 147.~0')
ALT,
Lot 17, BlOck 1
HCHAHON SUBDIVISION
Grid: 28.35 tScale: 1"=50' Date: 10-29-01