HomeMy WebLinkAboutROSEBUD HILLS BLK 1 LT 6
Municipality of Anchorage Page / of
DEPARTMENT OF HEALTH AND HUMAN SERVICES
ENVIRONMENTAL SERVICES DIVISION
P.O. Box 196650 · Anchorage, Alaska 99519-6650 · Telephone: 343-4744
On-Site Wastewater DiSposal System and/or Well Inspection Report
Permit Number: .~'Z~ O/ ¢~ PlDNumber: 01~*.~/- ~
Na~: ~ O~O~ Wastewater System: ~ New ~ Upgrade
Address: /~/o / ~-/~ s~ ABSORPTION FIELD
A~cdo~A~: A/d
Phone: ~ ? ~. ~ ? ~/ ~/ No. of Bedsores: ~ Deep Trench ~ Shallow Trench O Bed O Mound O Other
LEGAL DESCRIPTION soi~ Rating: Total Depth fro~rlginal grade:
Lot: ~ Blook: / ~°~cl~Subdiv~i°n: ~ ~ Deplh to pipe bo~o~,from odginal grade: Ft. Gravel depth ben~pipe Ft.
Township: Range: ~ Seotion: Fill added ~bov~ original grade: Growl I~gth:
WELL: D New D Upgrade Gravel width: ~ Ft. ~ /~ Ft.
Classification (Private, A,B,C): Total Depth: Cased To: Total absorption are~ Pipe material: /
Driller: - Date inst~lled: z
~ -- ~ ~1~[~ ~ Dat~ DriJled: StaticWaterLevel: installer:
Yield:i~ GPM Pu~p Set at: Ft. Casing Height~ Above Ground:Ft. TANK
SEPARATION DISTANCES ~ Septi~ ~ Ho~d~,~ ~ S.T.E.P.
To Septic Absorption Lift Holding Public/Private Manufacturer: Capacity in gallons:
/ Material: Number of Compadments:
Surface ~ / [ LIFT STATION
Lot /~ Size in gallons: Manufacturer:
Foundation ~ / yO / ~ "Pump on" leve~~: .... level at: High water alarm at:
CudainDrain /~/-/~- ~ ~ P~ode[ Electrical inspections pedormed by:
Remarks: BENCH MARK
Location and Description:
Inspections pedormed bY:s &, ,N~i~,,~;N, Dates: 1st ~/~/¢ Z
Oepartment of H~[Ith and Human Se~mes appruval
Reviewed and approved by: ~, ~ate: ~- / 7- e ~
72-013 (Rev, 9/91) MOA 25
PERMIT No. SW980146 PAG~. 2 OF 2
Municipg!,i ,¢y_o. F Anchor'o. oe
DEPARTMENT OF HbAL/H AND HUM"AN SERVICES
ENVIRONMENTAL SERVICES DIVISION
P.D. Box 196650 I Anchorage, ALaska 99519-6650·TeLephone: 343-4744
ON-SITE WASTEWATER DISPOSAL SYSTEM AND/OR WELL INSPECTION REPORT
LEGAL LOT 6, BLOCK 1, ROSEBUD HILLS S/D P.LD. NO. 017--381--55
FCO 8.5' 20.5'
ST1 25.0' 55.0' w EL
ST2 25.5' 41.0'
DBL1 27.0' 44.0' ~ ,
C01 26.5' .50.0'
MT1 59.5' 66.5'
C02 40.5' 51.0'
MT2 61.0' 74.5'
C05 81.0' 87.0'
C04 45.0' 60.0'
C05 83.0' 93.0'
: FS 40.0' 54.5'
ST1 ST2
/98'9' /FINAL GRADE C
9 . 1~50 GAL ~94 '
S.T. .
tJ L~
C05 C03
FINAL GRADE
C04 = 97.9' 98.4',
C05 = 97.8> ~02 =
03 = 98.3
MT2 T1 C03
~ ~ ~ ~CA~ ~" = ~o'
[I ~11
, .,~ co~ = 93.~:~ .
93.5 ~/ U U
~T1 = 88.6TM ....
WATER FOUND
A B
FCO 8.5' 20.5'
ST1 25.0' 55.0'
ST2 25.5' 41.0'
DBL1 27.0' 44.0'
DBL2 27.0' 44.5'
C01 26.5' .50.0'
MT1 59.5' 66.5'
C02 40.5' 51.0'
MT2 61.0' 74.5'
C05 81.0' 87.0'
C04 45.0' 60.0'
C05 83.0' 93.0'
FS 40.0' 54.5'
08/21/98 FRI 10:14 FAX 9073455549
OSBORNE
M-pW DRILLING, INC O BOX 110378
ANCHORAGE, AK 99511-0378
345-4000 FAX 345-3287
NORONGH SUEDMSION LOT BLOCK SECTION QTHS SECTION ?O~D.~ ......."
I
DEPTHS I{EASURED PRO}{: [ ~ CASI~ TOP [ ] GROU~ SDRFAOE
HA~ ~PE ~ CO,OR FROR TO
NELL AH-BUIlT: DATE OF COHPCETION:
DEPTH OF HOLE: ./d'd FEET
DEPTH OF CASIUS: 2o'~
TO STATIC WATER LEVEL:
DATE: Od/2d/~ .//2 Fl; BELOW{ [~ TOP OF CA~G [ ] GROUND SURFACE
~YPE: Sff~
LH{BR ~YPE: ~/~ D~R: ~. FROK ~JO
PERFO~TIOH$: TO
SCREEH TYPE:
$LOT/gESH SIZE: LEHG~It: fc
VOLURE USED:. DEPTH TO
DEPTH:ERON fct~
ROT~Y
SEP 5 1998
Municipaliiy ot Anchorage
USE OF NELL:
[]0TNER
PUIIP1HG LEVEL AllD
8: AFTER 1
UPON CORPLETIOI~
RERARKS:
HOUR PHRP~{G
YES []NO
EUPPLY
EISA Certified Contractor
DATE
~I~OBERT C. COWAN, RE.
ROBERTA. SHAFER, RE.
CIVIL ENGINEERS
HEALTH AUTHORITY
APPROVALS
SEWER & WATER
MAIN EXTENSIONS
S EWER & WATER
INSPECTION
ENGINEERING STUDIES
AND REPORTS
WELL INSPECTION
& FLOW TEST
SITE pLANS
ROAD DESIGN
SOILTEST
PERCOLATION
TEST
STRUCTURAL&
MECHANICAL
INSPECTIONS
ONSITE
WASTEWATER
DISPOSAL SYSTEM
DESIGN
(907) 694-2979
FAX (907) 694-1211
Municipality of Anchorage
DEPARTMENT OF HEALTH AND HUMAN SERVICES
825 L Street
P.O. Box 196650
Anchorage, Alaska 99519-6650
RECEIVED
JUL 7.3 1998
Municipality ut Anct3o age
Dept. Health & Human S;~Wces
The septic inppgctions for t~etreferenced property were
performed on~/q/9 ~ and ~ .[/~9~ · Prior to submitting
the On-site Wastewater Disposal System and~o~Well Inspection
Report we are waiting for the ~~~/~>~ £~v6~to be
completed.
If we may be of further service please contact us.
Sincerely,
Robert C. Cowan, P.E.
17034 NORTH EAGLE RIVER LOOP · SUITE 204 · EAGLE RIVER, ALASKA 99577
MUNICIPALITY OF ANCHORAGE
Department of Health and Human Services
On-Site Services Program
825 L Street, Room 502
P. 0. Box 196650, Anchorage, AK 99519-6650
(907) 343-4744
ON-SITE WASTEWATER DISPOSAL SYSTEM I WATER SUPPLY PERMIT
Initial
Date Issued: Jun 03, 1998
Expiration Date: Jun 03, 1999
Permit Number: SW980146
Design Engineer: 0019 Flattop Technical Services
Owner Name: Jeff Osborne
Owner Address: 12101 Jerome St.
Anchorage, AK 99516-
Parcel ID: 017-381-35
Legal Description: ROSEBUD HILLS BLK 1 LT 6
Site Address: 005635 RIDGEVIEW DR
Lot Size: 52500 SQ. FT.
Total Bedrooms: 4 Permit Bedrooms: 4
This permit is for the construction of:
[] Disposal Field [] SepticTank
[] Privy [] Private Well
[] Holding Tank
[] 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 DHHS at least 2 hours prior to each inspection. Provide notification by calling
(907) 343-4744 ( 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 ~rovisions.
Date:
Date:
CIVIL & ENVIRONMENTAL ENGINEERING * ENERGY CON: ERVATION & ANALYSIS
TttEODORE F. MOORE, P.E. 14530 ECHO ST.
PH: (907) 345-1355 ANCHORAGE, ALASKA 99516
May 28, 1998
M.O.A. DHHS
P.O. Box 19-6650
Anchorage, AK 99519
Dear Sirs:
The purpose of this letter is to provide the required design narrative in support of our application for
a permit to construct wastewater disposal facilities on Lot 6, Block 1, Rosebud Hills S/D, located at
5635 Ridgeview Drive. Soils logs, perc test results, a site plan, design drawings and specifications are
enclosed for your review. The initial construction will be temporary living quarters located in the
garage, with the main house to be constructed at a later date. Ultimately, the main house will have 4
bedrooms and there will not be any bedrooms remaining in the garage structure, however there will still
be a toilet in the garage.
The proposed system will be constructed in the vicinity of test hole #1. As can be seen from the soil
log, the native material between 2.5' and 12' below ground level is a silty sandy gravel with a measured
perc rate of 4 minutes per inch. Using a slightly conservative soil application rate of 0.8 gpd/sq. It, this
proposed 4 bedroom residence requires a total absorption area of(4 x 150)/0.8 = 750 square feet. The
proposed design consisting of 2 parallel 38-foot long trenches with 5 feet of sewer gravel below the
horizontal distribution pipe has a total absorption area of 760 square feet.
The topography of the lot in the area of the proposed construction slopes down towards the west at
approximately 2%.
The designated replacement soil absorption system is planned for the vicinity of test hole #2 where
the measured perc rate in the optimum receiving stratum is 19 minutes per inch. The design of this
system will differ from the original system in that the trenches will be sized on the basis of 0.6 gpd/sq.
ft. and the absorption stratum will be between 7 feet and 12 feet below ground level. The two 50'
trenches with 5 feet of sewer gravel will result in an effective absorption area of 1000 square feet.
The proposed project will have no significant impact on present or future water supply and
wastewater disposal systems serving adjacent properties, nor will it have any significant impact on
reserved space-surface and subsurface, or on drainage. Please give me a call at 345-1355 if you have
any questions on this submittal.
Sincerely,
Ted Moore, P.E.
SEPTIC SYSTEM o
SEPTIC SYSTEM
100'+ N OF PROP. LINE
.'''-- ---_.. o THIS AREA o
'' LOT 1, CONTOUR
LOT 2, CONTOUR ACRES'~2
.- ACRES #2
.............................................. }; ~'-2-- ............ ---'-'~ r./ -
LOT 6, BLOCK 1 PROPOSED~ ..'' ,
ROSEBUD HILLS WELLSlTE //....' ',,
; / ,' LOT 7, BLK 1
~ ~ ........... ~ ,' ROSEBUD HILLS
LOT 5, BLK, I ~
',
ROSEBUD HILLS , :DROP. ,~
(VACANT) ', I 3ARagE "~' ^ ,' ~J'
: ~,,. , , WELL
';TEMP. % /
r~ T.U. '. ....... .......... ~ ~:ii!~ii!~ '" ~ ~
· , :o,. ...... :!', '.~i USE
FLOW SPLITTER ~ z - u ~o / ~ ~
PROPOSED i', ~ PROPOSED i;(( 8;,; '. ~
~ ~--~' --- % 1250 GALLON !~''?'( ~'/'-
2x38'SOILABS. ~ , , oT.h' ,,~ / -...
TRENCHES WITH I ~, ¢ #1 SEPTIC TANK 4b '-- - -'
5.0' SEWER GVL. I ,
~ ~ '.; '.'. '; ~ ~XISTING
F, :: '~ i!;': ?'. :i: ~ SEPTIC
YSTEM
SITE FOr,~,,, ' i
REPLACEMENT--,, , ,O
2x50'SOILABS. < " ' .....
' r 11 T, :.~
O.6
GPD/SQ.
FT.)
,, ,, SEPTIC
,, ,, SYSTEM
~- ~-%.v........ ~. ~ RIDGEVIEW DRIVE
· --~ ~z~w.. ~ -..~,~ ~. _ ~_~ LOT 6, BLK. 1, ROSEBUD HILLS S/D
~' :~.* ~.~ %'IS ,A PROP. WELL AND SEPTIC SYSTEM
49TM SITE PLAN
-~, '~'[ ................ :*~.'~ FLATTOP TECHt~CAL SERVICES 1 INCH = 50 FEET
~' ·e THEODORE F. MOORE e· e
-~'e~. %e CE - 3589 ..e ;~ee~ 14530 ECHO STREET DRAWN BY TFM
~'e~ .. ..... o'/.~_'ar LOT4, BLOCK2 ANCHOAAGE, AgASi~99516 MAY, 1998
w~,yo' p,,.. ~o o~'..~,~ ROSEBUD HILLS
'~,.. ,0Tess ~..~' NOTE: THIS IS NOT A SURVEYED PLAT.
'~,~,~'~" (VACANT)
ALL LOCATIONS SHOWN ARE APPROXIMATE.
I ~ 1250 GALLON SEPTIC TANK
c.o.~l ~ /. U.T. ~
4"DIA :~ ~ s: _,~_~, ................................. ~
NON-PERF H / k ,, '
o.o.
. ,] ~ ~ OUTER LIMITS OF ~
~ ~ -TRENCH EXCAVATION
PLAN VIEW
SCALE: 1" = 10'
MONITOR "]
CLEANOUT
MOUND
BACKFILL 1.0'
10
GINAL GR
4" DIA, F-810
PERF. DIST. PIPE
1/2" - 2 lf2'
SEWER GVL.
-- BOTTOM OF EXC:
SECTION "A - A"
SCALE: 1" = 5' - 0"
LOT 6, BLOCK 1, ROSEBUD I-1TI.LS
PROPOSED SEPTIC SYSTEM
PLAN AND CROSS-SECTION
FLATTOP TECHNICAL SERVICES SCALE: AS SHOWN
14530 ECHO STREET DRAWN BY: TFM
ANCHORAGE, AK, 99516 MAY, 1998
Flattop Technical Services
14530 Echo Street, Anchorage, AK 99516
Phone (907) 345-1355
Lot 6, Block 1, Rosebud Hills
5635 Ridgeview Drive
Wastewater disposal system installation
Specifications
1.0 General:
1.1 The scope of the project consists of installation of a 1250 gallon septic tank followed by 2
parallel 38 foot long soil absorption trenches containing a total of 5.5 feet of sewer gravel.
1.2 Construction shall be as depicted on the approved site plan and design drawings. Minor
deviations from these drawings may be allowed or required by the engineer conducting the inspections.
All construction procedures and material specifications shall conform with Municipal and State
requirements. All separation distances shall be in conformance with Municipal requirements, unless
specifically waived.
1.3 The contractor shall be responsible to obtain any necessary utility locates, and to work around
any buried utilities.
1.4 The contractor shall provide adequate cover material and rough grading over all system
components to ensure that proper drainage is achieved after settlement and that there are no residual
depressions. Insofar as possible the contractor shall minimize .damage to trees and existing lawn areas.
1.5 Unless specifically agreed otherwise, the homeowner shall be responsible for finish grading
after the soil is compacted, as well as placement of topsoil and reseeding all areas disturbed by the
construction.
2.0 Septic Tank:
2.1 The new 1250 gallon, 2 compartment septic tank shall be Municipally approved and shall be set
level on undisturbed soil. Each compartment shall be equipped with a watertight manhole cover and a
4" cleanout. If the tank is buried less than 4 feet, it shall be insulated with 2 inches of approved burial
type, rigid insulation.
2.2
All pipe connections to the tank shall be equipped with waterproof mechanical couplings. The
waste line from the residence to the septic tank shall have a minimum slope of 1/4'" per foot,
and the waste line between the tank and the soil absorption system shall have a minimum slope
of 1/8" per foot. A cleanout shall be installed within 5 feet of the building foundation as well
immediately prior to the 900 bend preceding the septic tank. A double cleanout shall be installed
within 5 feet downstream of the septic tank.
2.3 A "Zabel" hydraulic flow splitter shall be installed downstream of the double cleanout to evenly
divide the Wastewater between the two soil absorption trenches.
3.0 Soil absorption system:
3.1 The soil absorption system shall be constructed by excavating two parallel trenches spaced 10
feet apart to a depth of 8 feet below ground level in the vicinity of test hole #1.
3.2 The bottom of the excavations shall be level and at the same elevation. Any compacted or
smeared surfaces shall be raked to allow proper infiltration. Sand for leveling or serving as filter
material shall comply with Municipal specifications.
3.3 A total of 5.5 feet of approved sewer gravel shall be placed in the bottom of the excavation with
the perforated distribution pipes laid level such that the pipe inverts are no less than 5.0 feet above the
bottom of the sewer gravel. Sewer gravel shall be 0.5" - 2.5" screened gravel, with less than 3% passing
the #200 sieve.
3.4 Monitor tubes and cleanout pipes shall be of 4" diameter and installed in the locations shown on
the design drawings. The portion of the monitor tube extending through the sewer gravel shall be
perforated.
3.5 Approved filter fabric shall be placed over the entire top surface of the sewer gravel. A
minimum of 2 feet of soil cover is to be placed ove~: the filter fabric. If the soil cover thickness is less
than 3 feet, two inches of rigid, burial type insulation is to be placed over the entire top surface of the
gravel, in addition to the filter fabric.
3.6 The top surface of the cover material shall be raised a minimum of 12 inches higher than the
surrounding terrain to allow for subsequent settlement, and shall be graded to smooth contours. Fill
slopes shall be no steeper than 3:1.
3.7 Unless specifically agreed otherwise the homeowner shall be responsible for arranging to have
the site finish graded after the backfill material has stabilized, and for placement of adequate topsoil and
seed to promote rapid revegetation of all areas disturbed by the construction.
4.0 Inspections:
4.1 A minimum of 4 engineering inspections will be required during the course of the project: (1)
initial stakeout with the contractor to establish the location of the system and to discuss the plans,
specifications and construction procedures, (2) after the native material has been excavated to expose the
infiltrative surface to ensure that it is level and at the right elevation, and conforms with the soil test
information, (3) after the sewer gravel is in place and the distribution pipes have been laid and connected
up to the septic tank, but prior to placement of insulation or filter fabric, and (4) after rough backfill and
grading is complete. The septic tank requires one inspection after it is set level and the piping
connected, but prior to backfill. This inspection may be incorporated with any of the above inspections.
4.2 The installer shall coordinate the timing of the inspections with the engineer sufficiently far in
advance to ensure the availability of the engineer.
JTEST HOLE
LEGAL DESCRIPTION:
DATE PERFORMED:
PERFORMED FOR:
DEPTH
(feet)
1
COMMENTS: _
FLATTOP TECHNICAL SERVICES
14530 ECHO ST.
ANCHORAGE, ALASKA 99516
SOILS LOG -- PERCOLATION TEST
Lot 6, Block 1, Rosebud Hills
May 11, 1998
Jeff Osborne
Pt.
SM Reddish sandy loam
SLOPE
GP/GM Silty sandy gravel
Dark gray, damp
Water seeps
Depth to Groundwater Date
~ ~ 12' B.G.L. 5/11/98
17'- 3" b'.G.L. 5/19/98
ML Gray silt
B.H.
LOT 6, BLOCK 1
ROSEBUD HILLS
T.H.#3
¢¢ T.H. #1
3?., T.H. #2
Clock Net Time Percometer Net Drop
Date Reading Time (minutes) Reading (inches)
5/11 12" Presoak 27 3/4
Add water & start 12:23:30 23 7/16
#1 12:28:30 5 21 3/4 1 11/16
add water 12:28:45 23 1/2
~r2 12:33:45 5 21 3/4 1 3/4
Add w~ter 12:34 23 5/8
#3 12:39:45 5:45 71 314 1 7/8
add water 12:40:30 23 7/16
#4 12:45;30 5 21 11/16 I 3/4
PERCOLATION RATE 4 (minutes/inch) PERC HOLE DIAMETER 7"
TEST RUN BETWEEN 5.5 _ FT AND_ 6 0 FT
Des ,qn soil absorp~inity of this test hole on basis of 0.8 ,clpd/sq. ff. us n,cl soils between 2.5' and 8' b.g.I.
PERFORMED BY F LA'I-['OP TECHNICAL SERVICES. I_ ~.~ ~¢~/~"~ CERTIFY THAT THIS TEST WAS PERFORMED IN
ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. DATE: ~¢""/~ ~ ~ ~
TEST HOLE # 2
LEGAL DESCRIPTION:
DATE PERFORMED: _
PERFORMED FOR: _
DEPTH --
(feet)
FLATTOP TECHNICAL SERVICES
14530 ECHO ST.
ANCHORAGE, ALASKA 99516
SOILS LOG -- PERCOLATION TEST
Lot 6, Block 1, Rosebud Hills
May 11, 1998
Jeff Osbcrne
Pt.
SM Reddish sandy loam
ML Gray sandy silt
GM/SM Gray sandy silty gravel
Siltier than T.H. #1
Top of stratum is shallower on East
SLOPE
side of test hole than on West
Depth to Groundwater Date
~at 18 feet 5/11/~
17~B.G.L 5/19/98
LOT 6, BLOCK 1
ROSEBUD HILLS
T.H. #3
Clock Net Time Percometer Net Drop
Date Reading Time (minutes) Reading (inches)
Start ~00:30 23 5/16
2:15:~00 15__ 22 7/1~ 7/8
~ 23 1/2
--~water__ 2:16 __ --
~ 2:31 15 -- ~6 13/16
~--~ ~- 23 1/2
#3 - 2:46:~15~ 15 22 11/1~6 13/16 __
PERCOLATION RATE 19 (minutes/inch) PERC HOLE DIAMETER _ 7"
TEST RUN BETWEEN 7.0 FTAND~5 FT
COMMENTS: Design soil absorption system on basis of 0.6 gpd/sq, ft. using soils between 7 and 12 feet b.g.I.
PERFORMED BY FLA'I-I'OP TECHNICAL SERVICES. If,~'~ ~ CERTIFY THAT THIS TEST WAS PERFORMED IN
ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. DATE: _ ,~' '~,~ ~'~'
ITEST HOLE
LEGAL DESCRIPTION:
DATE PERFORMED:
PERFORMED FOR:
DEPTH
(feet)
1
2
FLATTOP TECHNICAL SERVICES
14530 ECHO ST.
ANCHORAGE, ALASKA 99516
SOILS LOG -- PERCOLATION TEST
Lot 6, Block 1, Rosebud Hills
May 11, 1998
Jeff Osborne
Pt.
SM reddish sandy loam
GP Clean sandy gravel
GP/GM Somewhat silty sandy gravel
Water flowing into T.H. @ 6' (North end)
ML Gray silt
SLOPE
SP/SM Silty sand
ML gray silt
B.H.
LOT 6, BLOCK 1
ROSEBUD HILLS
T.H.#3
~ T,H. #1
Depth to Groundwater Date
Water ~, 6' 5/11/98
Clock Net Time Percometer Net Drop
Date Reading Time (minutes) Reading (inches)
PERCOLATION RATE (minutes/inch) PERC HOLE DIAMETER
TEST RUN BETWEEN FT AND FT
COMMENTS: No monitor tube set because shallow groundwater precludes trench in this area.
PERFORMED BY FLA'I-rOPTECHNICALSERVICES. I ~_~ ~ CERTIFYTHATTHISTESTWAS PERFORMED IN
ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. DATE:
•
QP..
s„
•y Municipality of Anchorage
On-Site Water and Wastewater Program
(907) 343-7904 s a E*r
Certificate of On-Site Systems Approval
Parcel I.D. 017-381-35 Expiration Date: _ 1 L1 12
1. GENERAL INFORMATION:
Complete legal description ROSEBUD HILLS: BLOCK 1, LOT 6
Location (site address) 5635 Ridgeview Drive'Anchorage 99516
Current Property owner(s) Jeff Osborne Day phone 441-6600
Mailing address
Real Estate Agent _ Day phone
2. TYPE OF DWELLING:
® Single Family (w/wo ADU)
❑ Duplex
(7 Multiple Dwellings (Single Family and/or Duplex)
3. NUMBER OF BEDROOMS: 3
4. TYPE OF WATER SUPPLY: TYPE OF WASTEWATER DISPOSAL:
Individual Well ® Individual
Individual Water Storage ❑ Holding Tank LJ
Community Class _Well ❑ Community ❑
Public Water System ❑ Public Sewer
WaiverNariance request for: Distance:
Received by: (/) Date: //PLO-7
COSA to be released to the engineer, unless otherwise requested by the engineer.
COSA Fee $ 5-2C, Waiver Fee $
Date of Payment lIl3 Date of Payment
Receipt Number 6050/6 Receipt Number
COSA# ocf9-15-240 Waiver #
5. 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 Firm: Garness Engineering Group, Ltd (GEG) Phone: 907-337-6179
Address: 3701 East Tudor Road, Suite 101-Anchorage, Alaska 99507
Engineer's Printed Name: Jeffrey A. Garness Date: LI `3'7/7'
�00000 -v%,
In conducting this evaluation, GEG provided an engineering evaluation of the well and/or septic system o OF Q,
in accordance with the guidelines and regulations established by the Municipality of Anchorage and .��..• • ..�6. j
industry practices. The reported results describe the.condition of the system/s on the date/s of the Q Q '
evaluation. Separation distances were measured to readily identifiable features. Hidden defects or DQE , • T -)� '.."...._77°(),,
encroachments may exist that were not identified during the evaluation. The operational life of all wells * , ,7* V0�
and septic systems depend upon a variety of variables, including but not limited to, soil conditions,
groundwater levels (that may fluctuate during the year), quality of construction (materials and Q
workmanship), and the water usage of the family utilizing the system/s. These conditions can vary,and -..��.. ... Q
are outside the control of GEG. Satisfactory test results do not guarantee future performance of the O -f : A. ,•rn-ss,.. 0
system/s; therefore, GEG makes no warranty (express or implied) regarding the future performance of (/ % C 79 3 ' �Q�
the well or septic system. GEG makes no representation whether an alternative well or septic system 0 9 ��Q
can be installed on the property in the event either of the current systems fail to perform adequately in �Q e fit! /.�• °o
the future. The content of this report is for the sole benefit of the person/party that retained GEG to �DOq pro fess e�oo�
perform the evaluation. Reliance upon the information provided in this report by any other person or ��Opoo�c
party (including subsequent property purchasers) is not authorized, nor will it confer any legal right
whatsoever.
#AECC884
6. DSD SIGNATURE
System #1 Approved for 3 bedrooms
System #2 Approved for bedrooms ,_'-\\( OFt t�t
Disapproved �`V
`_ NTE �G)
Conditional approval for bedrooms, with the follows stip SAND '
7-3 C3 WASTEWATER o
' PROGRAM
,OA `G<G�O- ..
NT SER\I
By: lit-....._ mss.' Original Certificate Date: 1 / / tf—/ 7
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 Nitrate Advisory
Septic System Advisory Arsenic Advisory
Well Flow Advisory Other
COSA blue sheet 10-10-12.doc
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: ROSEBUD HILLS; BLOCK 1, LOT 6 Parcel ID: 017-381-35
A. WELL DATA 160.2
Well type PRIVATE If A, B, or C provide PWSID# N/A Well Log (Y/N) YES
Date completed 6/15/98 Sanitary seal (Y/N) YES Wires properly protected (Y/N) YES
Total depth 160 ft. Cased to 160.2 ft. Casing height(above ground) 18+ in.
FROM WELL LOG AT INSPECTION
Date of test 6/15/98 10/19/17
Static water level 111 ft. 112.3 ft.
Well production 13 g.p.m. 6.7+ g.p.m.
WATER SAMPLE RESULTS:
Coliform s colonies/100 ml. Nitrate 1' 3 6mg./L. Collected by: GEG, Ltd.
Arsenic: <S•Oug./L. Date of sample: 10/19/17
B. SEPTIC/HOLDING TANK DATA
Tank Type/Material SEPTIC/STEEL Date installed 6/9-10/98
Tank size 1250 gal. Number of Compartments 2 Cleanouts (Y/N) YES
Foundation cleanout (Y/N) YES Depression over tank (Y/N) NO High water alarm (Y/N) N/A
Date of pumping 10/23/17 Pumper ISAAC'S PUMPING
C. ABSORPTION FIELD DATA BELOW EXISTING GRADE AT MTS WEST/EAST
Date installed 6/9-10/98 Soil rating •.p d./ 2or ft2/bdrm) 1.2 System type DUAL TRENCH
Length 40/40 ft. Width 3/3 ft. Gravel below pipe 5/5 ft.
Total depth •9.7+ ft. Eff. absorption area 800 ft2 Monitoring tube YES Depression over field NO
Date of adequacy test 10/19/17 Results (Pass/Fail) PASS For 3 bedrooms
313/306
Fluid depth in absorption field before test 20/0 in. Water added gal. New depth 22/2 in.
Elapsed Time:120/111min. Final fluid depth 20/0 in. Absorption rate >= 450+ g.p.d.
Any rejuvenation treatment(past 12 mo.) (Y/N &type) NONE KNOWN If yes, give date -
-1016 GALLON PRE-SOAK PERFORMED ON WEST TRENCH 10/18/17
-1008 GALLON PRE-SOAK PERFORMED ON EAST TRENCH 10/18/17
D. LIFT STATION
Date installed Size in gallons Manhole/Access (YIN)
"Pump on" level at in. "Pump off' level at '• wa er alarm level at in.
- _- 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 lot 100'+ On adjacent lots 100'+
Public sewer main 75'+ Public sewer manhole/cleanout 100'+
Sewer/septic service line 25'+ Holding tank 75'+
Animal containment areas 50'+ Manure/animal excrete storage areas 100'+
SEPARATION DISTANCES FROM 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'+
SEPARATION DISTANCE FROM ABSORPTION FIELD ON LOT TO:
Property line 10'+ Building foundation 10'+ Water main 10'+
Water service line 10'+ Surface water 100'+ Driveway, parking/vehicle storage 10'+
Curtain drain NONE KNOWN Wells on adjacent lots 100'+
F. COMMENTS
..*��%%a a, r
G. ENGINEER'S CERTIFICATION ••••< ....•""" .ipv-.-./... .,
I certify that 1 have determined through field inspections and - 49 ��
••
review of Municipal records that the above systems are in
conformance with MOA COSA guidelines in effect on this . • i
date. co,) J f 0 y •. Garn-ss!I
Engineer's Printed Name JEFFREY A. GARNESS �2, CE-79' .. '
Date LI ) (9' �4.•' ROFESSI�P••.
LICENSE ��%aaaa**��
#AECC884
(Rev.10/12/12)
FINAL STRUCTURE AS BUILT G 9138 G "Q+��
I, William D. Fleming, hereby certify that I have performed on 8221 DEL STREET "�i
* ANCHORAGE, ALASKA 99502
as built survey of the structure on this lot and that oll the Pi+or+E 243-4090
dimensions and information as shown hereon are true and that no
encroachments exist unless shown otherwise.
I I/5/98 FINAL AS BUILT 44-15
6/22/98 AS BUILT FOUNDATION 42-43
7 5/8/98 PLOT PLAN 42-09
30 I DATE +�lowaaMr,, f'LD. BK.
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a _----— f—� NOTES: Easements not appearing on record subdivision
Lu j ,- I N plat are not shown unless description of easement is
w a w 3 L_U z provided by client. It is the responsibility of the owner
2 g'a> 6 a in > U or builder, prior to construction, to verify proposed
in in m 65.8 - -- ' `-"'=t- • --- - t n❑ LU o building grc•ie relative to finish grade and utilities
. i r s Volir)in C' r connections, and to determine the existence of any
O I 66.6'
a> m 0_ easements, covenants, or restrictions which do not
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Z z ' ,,_1 W x 0 z fA d' appear on the recorded subdivision plat.
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66.6 �. _ o 0 0 o Elevatldns based on assumed datum unless otherwise
".�°tt " ltii. g 0 181.8 \ indicated, and bearings and distances are record data.
to m o e o
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CLIENT:
S 00°05'07'E 331.16' (M) JEFF OSBORNE
S 0(BASIS)•E 33;.24 (R)
\ •
LEGAL DESCRIPTION
N.
•
30 LOT 6, BLOCK I,
ROSEBUD HILLS SUBDIVISION
5
PLAT NO. SCALE GRID
74-187 �• 0 2837
•
;• Municipality of Anchorage
_, ,_ DC%clopment Services Department
Building Safety Division `A'E,e
On-Site Water and Wastewater Program
4700 Elmore Street
P.O. Box 196650 Anchorage, AK 99519-6650
www.muni.org/onsite
(907) 343-7904
Nitrate Advisory
Certificate of On-Site Systems Approval # OSC 171526
A Certificate of On-Site Systems Approval inspection and test of potable
water was recently conducted on the well water supply on Block 1, Lot 6 of
Rosebud Hills subdivision. This inspection revealed a nitrate concentration
of 7.38 milligrams per liter (mg/L) was reported for the property's well
water sample. The Environmental Protection Agency (EPA) has established
a maximum contaminant level (MCL) of 10.0 mg/L for public drinking
water systems. While private wells are not subject to this regulation, EPA
standards are based on existing health information and can therefore be used
to gauge the relative quality of water from private wells. Please see the
attached "Nitrate Fact Sheet" for important information regarding nitrate.
This advisory must be attached to all copies of the subject Certificate of On-
Site Systems Approval.
Nitrate Fact Sheet
From Northern Testing Laboratories, Inc.
Nitrate is a negatively charged compound of nitrogen and oxygen, which is very soluble
in water. Nitrate is not readily filtered or otherwise removed in the soil and can pass
rapidly into ground water wells.
SOURCE: Nitrate is a major component of fertilizer and wastewater. Often the nitrate is
in the form of ammonia or protein first, which through contact with oxygen and certain
bacteria, converts to the oxidized form known as nitrate. Sources of nitrate from
wastewater include urea, ammonia cleaners, food solids, and bacterial cells. It may also
result from the breakdown of organic matter buried in the soil.
TOXICITY: Nitrate is generally not toxic to adults or children over the age of two or
three years, but is associated with a potentially fatal infant disease called
methemoglobinemia. In the digestive system of young children, nitrate converts to
nitrite, which can pass through the intestinal wall into the blood stream. There it
combines with the hemoglobin and interferes with the ability of the blood to carry
oxygen. For this reason, methemoglobinemia is referred to as "blue baby" disease. The
EPA limits the concentration of nitrate in public drinking water supplies to 10 mg/L. The
standard has been lowered from a previous level of 45 mg/L set by the US Public Health
Service and the World Health Organization.
TREATMENT: due to its solubility in water and negative ionic charge, filtration and
other common home water treatment systems such as softening or iron filtration does not
readily remove nitrate. The best method for limiting nitrate in well water is source
control. This can include avoiding overdosing of fertilizer near the well and maintaining
good separation distances between septic tank leach fields and the well. A special anion
exchange filter that contains a media with a strong affinity for negatively charged ions in
water, or by a reverse osmosis treatment system or distillation can remove nitrate.
TESTING: Nitrate analysis is usually done by one of the several "wet chemical"
methods using a spectrophotometer to read the final color endpoint. Specific ion
electrodes also can be used to detect the activity of nitrate in water. This laboratory uses
several different wet chemical methods approved under the public water supply
laboratory certification program. They also have test kits available, which the laboratory
uses to perform an inexpensive "screening test", and with which the homeowner can
monitor the change in nitrate levels from their well. They recommend comparing the test
kit results against a certified analysis from the lab occasionally to verify the accuracy of
the kit. We recommend using a specially prepared bottle that has been rinsed in
hydrochloric acid for collecting samples.