HomeMy WebLinkAboutKNIK HEIGHTS BLK K LT 12Knik H
ights
Block K
Lot 12
#018-252-11
PERMIT NUMBER:
SW020257
AS-BUILT DRAWING
LOT g. BLOCK G
KNIK HEIGHTS $/O
NE"W DRNN~ELD~
CO:
MT;
TEST pit D(CAVATED TO 6. A 4
HOUR PR~S~ W~ PERFORMED.
~D ~ SOI~ WERE FOUND TO
~ KNIK HE~
ALASKA WATER & V,[ASTEWATER
CONSULTANTS. INC.
PREPARED FOR: PHONF NUMBER:
SHERRY HOOVER (907) 545-8460
LEGAL DESCRIPTION:
KNIK HEIGHTS S/D; LOT 12, BLOCK K;
'P~PE OF WORK;
AS-BUILT DRAWING OF SEPTIC SYSTEM
PARCEL ID NUMBER:
018-252-11
Ld
DATE:
10/7/02
DRAWN 6Y:
B.S.G.
1" = 40'
PAGE NUIdB£R:
20r3
A B
FCO 36.79 19.18
ST1 24.15 49-5
ST2 25.86 58.00
~ DBL2 _27.85--
C01 62.43 8§.68
C02 78.65 98.22
C05 95.04 91.59
C04 72,21 75.11
PERM~ NUM*~., AS BUILT DlgAWING P~'CE~'0 NUMg~R:
SW020257 -- 018-2,:32-11
..'~' or eu.~ ^T ~.~ - 9~s SEPTIC TANK
· INVERT OF BUNG AT OU1~'T - 94.46
UPPER 7R[NCH LO~ER 7RENCH
~.. r~-~ ~..~...
,, ,~.;: .... ·
~,~,::~1~ OF PiPE" 91.29 ~: ~ ~1~ OF PiPE
¢',:1 ': ' 60.1
NO BEDROCK "
~ 78.8
OAT£:
10/7/02
DRAWN
B.S.G.
ALASKA ~WI'ER & '~%~,STEWATER
CONSULTANTS. INC. N.T.S.
PREPARED FOR: PHONE NUMBER: PAGE NUMBER:
SHERRY HOOVER (907) ,:345-8460 5 OF'
LEGAL O[$CRIPIION:
KNIK HEIGHTS S/D; LOT 12, BLOCK K ,
IYP£ OF WORK:
PROFILE DRAWING OF SEPTIC SYSTEM UPGRADE
MUNICIPALITY OF ANCHORAGE
Development Services Deparlment
On-Site Water & Wastewater Program
4700 South Bragaw Street
P.O. Box 196650, Anchorage, AK 90519-6650
(907) 343-7904
ON-SITE WASTEWATER DISPOSAL SYSTEM PERMIT
Upgrade
Date Issued: Jul 22, 2002
Expiration Date: Jul 22, 2003
Permit Number: SW020237
Legal Description: KNIK HEIGHTS BLK K LT 12
Design Engineer: 0041 AK Water & Wastewater Consultan'
Owner Name: Sherry Hoover
OwnerAddress: 13200 RIDGEWOOD CIRCLE
ANCHORAGE, AK 99516-2939
ParcellD: 018-232-11
Site Address: 013200 LEYDEN RD
Lot Size: 27454 SQ. FT.
Total Bedrooms: 3 Permit Bedrooms: 3
This permit is for the construction of:
[] Disposal Field [] Septic Tank [] Holding Tank [] Privy
[] Private Well [] Water Storage
All construction must be in accordance with:
1. The attached approved design.
2. Ail 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 inspect[on. Provide notification by calling
(907) 343-7904 ( 24 hours ). ( Not required for a Water Supply Permit only ).
4. From October 15 to April 15, a subsurface soil absorption system under construction during freezing weather
must be either: A. Open and closed on the same day,
B. Covered, sealed, and heated to prevent freezing.
Received By: ~
Municipality of Anchorage
Development Services Department
Building Safety Division
On-Site Water & Wastewater Program
4700 South Bragaw St.
P.O. Box 196650 Anchorage, AK 99519-6650
www.ci.anchorage.ak.us
(907) 343-7904
ON-SITE SEWER/WELL PERMIT APPLICATION
FOR A SINGLE FAMILY DWELLING
Parcel I.D. O18-232-11 Permit Number
Property owner(s) SHERRY HOOVER
Day phone
Mailing address(I) 13200 RIDGEWOOD CIRCLE * ANCHORAGE. AK 99516-2939
Mailing address (2)
Zip Code
Legal description (Lot, Block& Sub'd.) LOT 12. BLOCK K: KNIK HEIGHTS SUBDIVISION
Legal description (Section, Township & Range)
Lot Size O~ Acre ~-.'.'.~
THIS APPLICATION IS FOR:
Sewer Only ~r~
Sewer and Well
Sewer Upgrade ·
N,,/A
Number of Bedrooms
345-8460
THIS PROPERTY CONTAINS:
Hot Tub
Swimming Pool
Therapy Pool
Well Only
Water Storage
Jacuzzi
Water Softening Unit
I certify that the above information is correct. I further certify that this application is being made for a
Single Family Dwelling and is in accordance with applicable Municipal codes.
ALASKA WATER &: WASTE'WATER CONSULTANTS, INC.
(~;ignaturc of propcrt¥ ownor or outhorizcd agent)
Permit Fees:
Date of Payment:
Receipt Number:.
Waiver Fees:
Date of Payment:
Receipt Number:.
15'0
ALASIG WATER & WASTEWATER
CONSULTANTS, INC.
July 3, 2002
Municipality of Anchorage
Development Service Department
Building Safety Division
On-Site Water & Wastewater Program
P.O. Box 196650
Anchorage, Alaska 99519-6650
Reft Septic System Upgrade for Lot 12, Block K; Knik Heights Subdivision
To whom it may concern:
The existing 3 bedroom house is served by a private well and septic system. The existing septic
system consists of a 1000 gallon septic tank and a deep trench type drainfield. The drainfield will
not pass an adequacy test and must be upgraded. A test hole was excavated west of the existing
septic system. The new septic system will be designed around the 30 foot radius ofthis test hole.
We are proposing that a new 1000 gallon septic tank and a trench type drainfield be installed
outside the 100 foot well radius. Comments regarding the design are summarized as follows:
I. SOILS: See the attached log which shows the soil classifications, groundwater monitoring,
and the percolation test results. It is our opinion that due to the overall appearance of the soils, an
application rate of 0.6 gallons/day/ft2 should be used.
2. TRENCIt DESIGN:
a. Percolation Rate: 24 minutes/inch
b. Allowable Application Rate: 0.6 gallons/day/fi2
c. Number of Bedrooms: 3
d. Design Flow: 450 gallons per day
· 2
e. Minimum Absorption Area: 750 ft
f. Total Depth: 9 feet (max.)
g. Effective Depth: 6.5 feet
h. Width: 2.5 feet
i. Reduction Factor: N/A
j. Minimum Length: 58 feet total length (2 ~ 29 feet long each)
k. Effective absorption area -- 754 ft2
3. SURFACE WATERS: There are no surface waters within 100 feet of the proposed
upgrade.
6901 Debarr Road, Suite 2B * Anchorage, AK 99504
Ph: (907) 337-6179 * Fax: (907) 338-3246 * Website: akwwc.com
4. TOPOGRAPHY: There are no slope concems. The trenches are to be installed parallel to
slope contours.
I am 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., ~
Jeff~y~ .~G: n~, P.E., M.S.
NOTE: Attached is a site plan drawing, a design drawing, a topography site plan, a soils log,
and a 7 page construction specification letter which are all part of the design package for this
septic system.
6901 Debarr Road, Suite 2B * Anchorage, AK 99504
Ph: (907) 337-6179 * Fax: (907) 338-3246 * Website: akwwc.com
i
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LOT gA, BLOCK I,
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KNIK HF1GI-II~
LOT 10. B~LOCK I.
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AI"ASI{A WATER & WAsTEW~TER'
......... CONSULTANTS. INC.
PREPAR~.D FOR PHONE NUMBER:
SHERRY HOOVER 545-8460
KNIK HEIGHTS SUBDIVISION; LOT 12, BLOCK K,
PROPOSED NEW SEPTIC SYSTEM
[::
KNIK HE;CHIS S/D;
LOT 11, BLOCK H.
KNIK H~HTS $/0;
LOT 10, BLOCK H,
%
KNtK HDGHTS
LOT 4. BLOCK J.
LOT 9, BLOC~( G
* DO NOT USE FOR LAYOUT OF'
~"~. FOR ~ PURPOSE~ ONLY.
SEPTIC
COUF'LER.Y N~ANDONED
LOT 11, B~CK K
KNIK H~GHTS
PROPOSED 1000
.5C0~C TANK
\
PRO~ D~NR~. ~VA~
~uuu ~ 2.5' ~o[ ~ ~'
LONG ~ (2 ~ 29'}. ~D ~.5'
OF C~. ~H~ S~
P~NR~. IN~
P~L TO
AI~SICA WATER & WASTEWATER
CONSULTANTS. INC.
PREPARED FOR: PHONE NUMBER:
SHERRY HOOVER ,..x45-8460
L.[C, AL DESCRIF~ON:
KNIK HEIGHTS SUBDIVISION; LOT 12, BLOCK K
PROPOSED NEW SEPTIC SYSTEM
ABA,N~ON F'ID.D
tN PL~ ~
?/3/2002
Z.T,G.
1" = 40'
20F3
KN}K
KNIK
H ')US£l
KNIK HDGHTS
LOT 4.
KNI~
LOT
HrtGHTS S/D;
BLOCK
~EPARED
",,, ~HERRY ~ [60
'.-X ~.I.K \H EIGHTS 2,
. ~'~'P~o~'O~'E-O..NEW ¢ SYSTE~
aLASIr~ax WATER & WASTEWATER ff~..'..'~J~.3""...~O~.
ISOIL LOC; - PERCOLATION TESTI
lEGAL DESCRIPTION: KNIK HEIGHTS SUBDMSION; LOT 12, BLOCK K
(feet) __..~.~ ITESTHOLE #1I '"~
ORGAN,CS
GM/ML
10--
11--"
12-- "
14--
18 "
B.O.IL
SOIL CLASSIFICATIONS
~ GW ~ ORG
~ GP TrlTIT~ ~L
GM CL
GC OL
SW MH
~ SP CH
, ~ SM OH
SC
DEPTH TO DATE
GROUNDWATER
DRY 5/30/2002
DRY 6/4/2002
DRY 6/19/2002
SEE SITE PLAN
FOR TEST
LOCATION
DATE
6/4/2002
READING CLOCK NET TIME WATER LEVEL NET DROP
TIME (MINUTES) READING (INCHES)
1 12:48 -- 6' --
2 1:18 .30 4 1/2' I 1/2'
3 1:18 - 6' -
4 1:48 30 4 3/4' 1 1/4'
5 1:48 - 6' -
6 2:18 30 4 3/4' 1 1/4"
16--
17--
18--
1g--
20
SOILS LOGGED BY:
COMMENTS:
PERCOLATION RATE 24 (MIN./INCH) PERC. HOLE DIA. 6
TEST RUN BETWEEN 5.5 FT. AND 6.0 FT.
A FOUR HOURPRESOAKWAS PERFORMED: ~IYES F-JNO
JASON WOOD PERCOLATION TEST PERFORMED BY: ZACH CALL
(INCHES)
PERFORMED BY AKWWC. INC. I, JEFFREY A. GARNESS. CERTIFY THAT THIS W~SJPERFORMED IN ACCORDANCE
WITH ALL STATE AND MUNICIPAL GUIDEMNES IN EFI-£CT ON THIS DATE:
AKI~qVC, Inc., Year 2001
ALASKA WATER & WASTEWATER
CONSULTANT,S, INC.
Standard Construction Specifications for Single Family Wells &
Onslte Wastewater Disposal Systems
I. REFERENCE PROPERTY:
Lot 12, Block K, Knik Heights Subdivision. The design is for a ( 3 ) bedroom residence
II. DEFINITIONS:
1. Property owner or homeowner: The legal propen'y owner or his/her appointed representative
(not AKWWC, Inc.).
2. Engineer: Alaska Water & Wastewater Consultants, Inc. (AKWWC, Inc.)
8. Contractor: The company hired by the property owner to install the septic system. If the property
owner installs the system then he/she would also be the contractor for purposes of this installation.
4. Well Driller: The person or company hired by the property owner to drill the well.
$. DSD &/or MOA: Municipality of Anehorage, Development Services Department, On-Site Water
& Wastewater Program.
IlL RESPONSIBILITIES:
· Property Owner Responslbilities:
1. CONTRACTUAL RELATIONStlIP: The property owner shall contract with the contractor to
perform the work outlined in these specifications and plans, in accordance with the amched DSD permit.
There is no contxactual relationship between the conU'actor and the engineer. The engineer shall inspect
the work, as required by DSD, so as to document the installation. Final acceptance of the contxactor's work
rests with the owner and the DSD.
2. SINGLE FAMILY RESIDENCE ONLY: This well and/or septic system design is for a single
family residence only. The homeowner is respons~le for notifying the engineer if the residence is used as
a duplex, business, or multi-family dwelling. In such cases, the installation permit must be obtained from
the State of Alaska, Deparanent of Envirom~aental Conservation.
3. DISCLAIMER REGARDING AS-BUILT SURVEY: The validity of the design site plan is
limited by the accuracy of the as-built survey provided to the engineer by the property owner or his/her
representative. The property owner shall notify the engineer regarding any known inaccuracies associated
with the as-built survey. The engineer assumes no respons~ility for the accuracy of the survey.
4. UNPLATiI:D EASEMENTS: The property owner is responsible for notifying the engineer
and the conWactor of any unplaRed easements, not shown on the as-built survey, which the new well or
septic system may encroach into. Such easements are typically identified in the property title report.
5. DISCLOSURE OF SITE CONDITIONS: The properW owner shall notify the engineer and the
contractor of any seasonal groundwater or surface water runoff conditions known to him/her which could
potentially effect the operation of the septic system. The proposed septic system must be at least 100 feet
from any streams, ponds, creeks, swamps, bogs, or any other surface water as dcfmed by the DSD. This
disclosure is of particular significance when the site evaluation and design work is being done during the
winter months when surface waters are frozen and there is snow cover.
Page I of 7
AKIVWC, Inc., Year 2001
The property owner shall notify the engineer and the contractor of any known subsurface conditions that
would prohibit or restrict the installation of the septic system. Items of concern would include, but are nog
limited to buried piles of consU'uctinn debris, undocumented septic systems, areas which consist primarily
of fill (imported) soil, subsurface drainage systems, & abandoned wells.
6. DRINKING WATER WELLS: The property owner is responsible for notifying the engineer
if, to his/her knowledge, any of the adjacent properties are used as a duplex, business, or multifamily
dwelling. The new septic tank and leachfield must be at least 100 feet from any private well, 150 feet from
any class "C" well, and 200 feet from any class "A" or "B" well, unless appropriate waivers are obtained.
Furthermore, the proper~ owner shall notify the engineer of any undocumented or abandoned wells,
known to him or her, that are located on the subject or adjacent properties.
?. CURTAIN DRAINS: The new drainfield must be at least 20 feet down gradient and 50 feet
upgradient from any subsurface drains. This includes foundation drains. The property owner should notify
the engineer of any such drains that are not shown on the design drawings for this installation.
8. POST CONSTRUCTION SITE RESTORATION: Unless specifically agreed upon otherwise,
the property owner is responsible for final grading of the areas which settle after construction. Prior to
awarding the conWact, the homeowner should communicate to the contractor any expectations regarding,
but not limited to post consWuctinn site clean-up, re-landscaping, and restoration of any asphalt, fences,
trees, decks, ect. that are effected by the construction. All mound typo drainfields are required by the MOA
to be re-vegetated. The property owner is responsible for this work unless other arrangements are made
with the conWactor.
If the property is being sold, the property owner shall ensure that the aforementioned items are addressedI
with the buyer, and, if the work is to be completed after the sale of the property, that necessary funds areI
escrowed to fund the completion of the work.
9. PROPERTY OWNER INSTALLATION OF SEPTIC SYSTEM: If the property owner intends
to install the septic system be/sbe must first have obtained approval from the Municipality of Anchorage,
DSD (343-7904). Homeowner installations typically require more time for engineer inspections. The
homeowner should discuss the additional costs associated with such inspections with the engineer prior to
starting the project.
I0. ENGINEER CllARGES TO INSPECT TIlE INSTALLATION: The property owner is
responsible for payment of all the engineer inspection charges. These charges are in addition to the soils
testing and design work that was required to obtain the MOA sewer/well permit. The number of
inspections will vary depending on the actual field conditions encountered and the construction methods
used. If there are any questions by the property owner, or his/her representative, regarding charges for
installation inspections they should be discussed prior to beginning constmctinn. AKWWC, Inc. will
provide you with a written copy of the fee schedule.
11. CHANGES IN TIlE SCOPE OF WORK: See Section V, "Disclaimers" regarding design
changes. See "Contractor Responsibilities", paragraphs I, 2, & 13. In addition, see "Engineer
Responsibilities", paragraphs 2, 4, & 5.
· Contractor Responsibilities:
!. PRE-CONSTRUCTION LAYOUT: The cona'actor is responsible for locating all buried
utilities, easements, property lines, surface water setbacks, well radii, and water service lines which may be
encroached upon by the proposed septic system. The contractor shall ensure that all setbacks are flagged
by a registered land surveyor, or other appropriate means, prior to construction. AKWWC, Inc. field
engineers/inspectors will uot be responsible for establishing or confuming any of the aforementioned
setbacks.
The contractor should recognize that the location of all wells, surface waters, structures, and other items
shown on the design drawings are typically derived from as-built surveys, and municipal records. The as-
built surveys and municipal records (prepared by professional engineers & land surveyors) have been
assumed to be accurate for purposes of this design; however, the accuracy has 13~ necessarily been field
verified. Prior to beginning any conslructinn the contmctur shall field locate all items which have
protective setbacks and verify that there are no encroachment concerns. Any encroachments, for which
Page 2 of 7
AKI~YC, Inc., Year2001
waivers have not been granted, should immediately be brought to the attention of the property owner (orl
the r representat ye) and the engineer.
I
The test hole pipes shall ~ot be removed/abandoned until after the engineer has established their location
relative the new drainfield during the first inspection of the drainfield installation or during the pre-
construction layout. The new drainfield/s must be within a 30 foot radius of the test hole/s used for
establishing the design criteria.
The contractor should establish the elevation of all existing and proposed system components prior to
starting construction so as to insure that the necessary grades can be maintained. This is particularly
significant when the elevation of the existing system components is unknown because clean-outs are not
present, buried, or non-functional (can't measure down them because of obstructions). It is recognized that
conditions can be discovered that will materially change the design and the construction costs.
2. DISCREPANCIES BETWEEN DESIGN DRAWINGS AND SPECIFICATIONS:
Construction shall be in accordance with the approved site plan and design drawings, and any special
provisions noted on the municipal sewer permit. The contractor is responsible for notifying the engineer of
any diserepancles noted on the design plans or drawings, prior to starting work.
3, CHECK GROUNDWATER LEVELS IN TEST HOLE MONITORING TUBES: Prior to
beginning construetinn, the contractor shall check the liquid level in the test hole monitoring tubes to
ensure that there has been no change in the groundwater levels that would impact the proposed design,
Any rise in the liquid level should be brought to the attention of the engineer so that design changes can be
made if necessary.
4. MAXIMUM DEPTH OF DRAINFIELDS: The maximum depth of the drainfield is shown on
the design drawings or is noted in the narrative portion of the design package. The contractor shall notify
the engineer of any inconsistencies noted in the design package.
For purposes of this installation, the maximum depth of the drainfield will be based upon taking a
measurement at the deepest part of the excavation between the highest ground elevation encountered
(usually on the uphill side of the excavation) and the bottom of the lrench or bed excavation. The
contractor shall exercise caution not to remove evidence of the original grade prior to establishment of the
total system depth. In short, don't remove the organic layer until after the original grade elevations are
established by the inspecting engineer.
5. SUITABILITY OF MATERIALS USED FOR CONSTRUCiION. The contractor shall
ensure that ~ materials being used are in compliance with the most current guidelines established by the
Municipality of Anchorage. This includes, but ~ not limited to, the following:
a. Drainsock
b. Sand filter material for conventional beds, trenches, or mound systems.
c. Sand filter material and pea gravel for Intermittent Sand Filters (ISF).
d. Anchorage Sand and Grovel (AS&G) "block pea" material for Upflow Filters.
It is recommended that the contractor provide the engineer with current sieve analysis' from the sand/grovel
supplier to document the suitability of the material. The engineer assumes no responsibility for ensuring
that the materials delivered meet the MOA requirements.
6. BURIAL RATING OF TANKS: The contractor shall ensure that the septic tank, lift station, or
holding tank purchased has a burial depth rating suitable for the actual installation.
7. SEPTIC TANK AND STEP TANK SIZES: Prior to purchasing a septic tank or lift station the
contractor shall verify that it is adequately sized for the number of bedrooms shown on the permit issued by
MOA. The minimum septic tank size is 1000 gallons and the minimum STEP tank size is 1250 gallons.
These size tanks will handle residences with up to 3 bedrooms. For each additional bedroom over three (3)
the septic tank or the STEP tank volume shall be increased by a minimum of 250 gallons. For example, a
four (4) bedroom residence must have a 1250 gallon septic tank or a 1500 gallon STEP tank.
8. INSPECTIONS - ENGINEER NOTIFICATION: The contractor shall notify the engineer at
least 24 hours prior to starting construction. If deemed necessary, a pre-construction site visit shall take
Page 3 of 7
AKIYWC, Inc., Year2001
place. The coo~xactor shall coordinate with the engineer any inspections which will be required during
weekends, holidays, or before/after normal working hours (8:00 am to 5:00 PM). The property owner may
incur additional charges for inspections which do not occur during normal business hours. It is the
contractor's responsibility to notify the engineer a least 2 hours prior to any inspection.
9. REGULATORY NON-COMPLIANCE. The contractor shall report to the engineer and the
property owner any observed condition which would put the septic system in violation of State or
Municipal regulations.
10. BACKFILL OLD TEST IlOLES: Any remaining test hole excavations shall be filled and
mounded as part of this project. Unless instructed otherwise by the engineer, the old test hole groundwater
monitoring pipes shall be removed.
11. FINAL GRADING FOR DRAINAGE: The coo~actor is responsible for final grading so as
to ensure that surface runoff does not adversely effect the septic system constructed, adjacent septic
systems, or adjacent structures.
12. SOIL COVER REQUIREMENTS: The contractor shall ensure that the final cover over the
tank and drainfield is either compacted adequately when backfilling, or mounded sufficiently to ensure that
there is adequate soil cover over the tank and drainfield after settlement occurs. If seasonal conditions
prevent this, the property owner (or his representative) shall be notified that additional fill may be required
after senlement occurs. This notification is of extra significance when the property is changing ownership.
13. CHANGES IN CONSTRUCTION COSTS: The contractor is responsible for obtaining
approval from the property owner for any additional construction costs associated with design
modifications or changing field conditions prior to doing the work.
14. WORKING IN RIGHT-OF-WAYS AND TRESPASSING PRIVATE PROPERTY: The
contractor is respons~le for coordinating (including payment of encroachment permit fees) all access
through public and private properties with the appropriate authorities and/or property owners. Furthermore,
the contractor shall inform all parties of any potential impacts to adjacent properties prior to beginning any
construction.
15. MAINTENANCE & OPERATIONS MANUALS: The contractor shall provide the
homeowner with the manufacturer's installation/maintenance manuals for all system components installed
under this contract. If not given directly to the property owner, the manuals should be enclosed in a
protective cover (plastic bag) and placed/secured in a prominent location so the property owner can fred it.
16. INNOVATIVE SEPTIC SYSTEMS. START-UP INSPECTIONS: The contractor shall
notify Anchorage Tank & Welding Company (272-3543) after the installation of an Intermittent Sand Filter
kit or Advantex system (supplied by Anchorage Tank) is installed so that the appropriate start-up inspection
can be scheduled. This notification also activates the quarterly maintenance schedule. Such notification is
usually not required for BioOdcle installations since "BioCycle of Alaska" is typically involved with the
installation. The contractor shall contact BioCycle of Alaska (283-9003) regarding any start-up notification
requirements.
· WelIDrlller Responsibilities:
1, The well driller shall ensure that he has a well permit in possession prior to drilling the well.
2. The well driller shall physically verify that thc there are no septic systems, or other potential
sources of contamination, within the protective radius of the proposed well prior to drilling it.
Engineer Responsibilities:
1. SYSTEM DOCUMENTATION: The engineer is responsible for inspecting the installation of
the septic system and preparing as-built documentation, to the satisfaction of the M.O.A.. Inspections are
performed as necessary to document the construction ofthe system to the satisfaction of the M.O.A. In all
cases, inspections shall be performed as necessary to establish the following:
The original grades at thc drainfield/s site
The bottom of all trenclffbed excavation
Top ofsand on all sand filters
Top ofdrainpipe
Septic tank, or lift station, or holding tank prior to backfill
Placement of filter fabric and insulation
Page 4 of 7
dKW}VC, Inc., Year 2001
* After t'mal grading is completed
2. LIMITED AUTItORITY: The inspecting engineer has no direct authority over the contractors
activities or constxuction/safety practices. Should the engineer identify conditions which dictate a design
change, he or she will recommend that work be stopped, and/or the design be modified. If design
modifications are necessary, the engineer shall notify the property owner or his/her representative. The
inspecting engineer does not have the authority to direct the con~xactor to modify the system design in such
a way that it would be in violation of State or MOA regulations.
3. SEPTIC TANK INTEGRITY: The engineer shall inspect the condition of the existing septic
tank and determining its suitability for re-use. If the engineer determines the septic tank to be st~'ucturally
unsound, it must be replaced.
4. COORDINATION OF DESIGN CtlANGES WiTII TIlE MOA: If design changes are
necessary, the engineer will coordinate the approval of the changes with the MOA. The contractor does not
have the authority to proceed with any design modifications until verbal or written approval is obtained
from the MOA.
5. COORDINATION OF WAIVERS: If, during const~'uctinn, it is determined that a waiver will
be required in order to install the system as designed, the engineer will apply for the necessary waiver/s to
the appropriate State or MOA regulatory bodies. The engineering services and State/MOA fees associated
with such waivers will be additional charges to the property owner, over and above the installation
inspection fees charged by AKWWC, Inc.
SECTIONIV. CONSTRUCTION GUIDELINES:
Construction shall be in accordance with the approved site plan and design drawings and any special
provisions noted on the municipal well and/or sewer permit. All materials, components, workmanship, and
constxuction practices shall comply with the Municipality of Anchorage's latest ordinances regarding wells
and septic systems, as well as DSD policies. The failure oftbe inspectin~ engineer to notice a material or
construction non-compliance does not relieve the contractor of his/her responsibility to correct such a
deficiency.
· Septic Tank, Holding Tank, or Lift Station Installation:
1. The burial rating of the tank shall be adequate for the actual burial depth encountered.
2. The tank shall be level and sufficiently bedded to prevent settling or shifting of the tank.
3. All standpipes on the tank shall extend a minimum of 12 inches above final grade.
4. Tanks installed with less than 4 feet of cover shall be insulated. See "Contractor Responsibilities",
paragraph 12 regarding final soil cover.
S. The sewer service line from the house to the tank shall be sloped a minimum of I/4"
per foot, unless prior approval is obtained from the engineer.
6. The inlet and outlet lines from the tank shall be bedded in drainrock or the soil shall be adequately
compacted to prevent future seRlement of the soil.
7. A foundation clean-out will be installed ( 1.-4 feet from the house) if one does not currentfy exist.
8. Post tank clean-outs shall be installed per MOA requirements. Does not apply to holding tanks or lift
stations with pressurized lines.
9. In high groundwater areas, all tanks shall be anchored to resist buoyancy forces when there is not
adequate soil cover to resist the uplift force. The engineer shall make this determination.
10. The final soil cover shall be graded so that there is positive drainage away from tank.
11. All holding tanks and lift stations shall have an audible and visible alarm inside the residence.
12. All lift stations shall be wired in compliance with all MOA guidelines and the Uniform Electxical
Code. A municipal electrical permit and inspections must be obtained in areas where required by
the Municipality of Anchorage.
13. The contractor shall remove the old tank, or abandon it in compliance with the Uniform Plumbing
Code (UPC). The contractor is solely responsible for the abandonment procedure.
14. ISF AND ADVANTEX INSTALLATIONS: The control panel for the Intermittent Sand Filter and
Advantex systems shall be located outside the residence, for easy access during inspections. A
Page 5 of 7
~KI~YC, Inc., Year 2001
remote alarm must be installed inside the residence as per DSD requirements. Mounting the
panel directly to an exterior wood wall should be avoided because the closing of the relays creates
a "clanking" noise that may be offensive to the properly owners.
15. ISF INSTALLATIONS: The air compressor shall be equipped with 0 to 10 psi gauge for the purpose
ofmonitufing air flow to the sand filter. The pressure gauge will be located so that it is easily
monitored by the property owner.
· Installation of Conventional Absorption Bed & Trenches:
!. Excavate the proposed bed/trench to the dimensions shown on the design. The bottom of ibc excavation
shall be within 2 inches of level (2 inch maximum variation between high and low spots), lftbe sidewalls
or bottom oftbe excavation become smeared, they must be raked or scarified before placement of the filter
sand or drainrock.
2. The trench or bed should be at least $ feet from the test hole excavation.
3. All soil testa and excavation depths are advisory to the design and are to be verified in the field by the
engineer. If design changes are necessary, and the changes effect the contractor charges to the property
owner, the contractor shall obtain approval from the property owner prior to proceeding with the work.
4. Once the drainrock is installed, the dis~bution pipe is to be placed level (0.02 feet difference between
high and Iow shots) with the perforations faced downward. Drainrock is then to be placed over the
dis~bution pipe, to provide a minimum of 2 inches of cover over the pipe. The drainsock shall not be
pyramided over the drainpipe but shall be the same elevation over the entire ~nch/bed width.
$. A silt ba~ier must be installed between the final dtainrock layer and the native soil backfill. The silt
barrier shall cover the entire drainrock surface.
6. Monitor tubes shall be installed at the locations shown on the design drawings, and extend a minimum
of 12 inches above final grade. The portion of the monitoring tube extending through the drainrock shall be
perforated from the bottom of the trench/bed to the invert of the distribution pipe.
?. Backfill over the final drainrock layer must not be less than 2 feet. Insulation must be installed when the
backfill depth is less than 3 feet. The insulation shall cover the entire width of the trench/bed, the
contractor shall "shoot" the final grades to ensure cover depth is adequate, prior to notifying the engineer
that the work is complete. The l'mal cover over the drainfield must graded so that there is no potential for
water to pond over the trench/drainfield. See "Contractor Responsibilities", paragraph 12 regarding final
soil cover.
8. lfan alternator valve was installed with this design the con,actor shall provide a functional valve keytoI
the property, owner. I
~ECTION V: DISCIMIMER$
· UNFORESEEABLE SITE CONDITIONS: The design of this septic system, prepared by AKWWC,
Inc., was based upon a limited evaluation of the soil, groundwater, and site conditions. The extent of
the evaluation is consistent with standard engineering practice in the field. Furthermore, this design
was evaluated and approved by the engineers or technicians on staff at the Municipality of Anchorage,
DSD, based upon the information provided to them. Occasionally, during construction, unforeseeable
subsurface conditions (high groundwater, poor soils, buried debris,....) are encountered that make the
proposed installation not feasible. In such cases it is typically necessa~ to do more soils testing,
groundwater monitoring, and design work. These additional engineering services will be performed on
a fee basis at an hourly rate. AKWWC, Inc. will obtain verbal authorization from the property owner
(or his/her representative) prior to proceeding with the work, and will provide a written estimate if
requested. The property owner should discuss with the contractor any changes in the installation cost
associated with the design changes.
· IF TIlE PROPERTY BEING SOLD AND FUNDS ESCROWED FOR THE UPGRADE, it is
impomnt to bear in mind that the ability to upgrade the septic system on this property is not 100%
certain (for the reasons stated in the previous paragraph). There is always the possibility that
conditions could be encountered that would prevent the installation of anything other than a holding
tank. Although such a situation would be rare, it is important that all parties recognize that such a
Page 6 of 7
AKWW¢, Inc., Year 2001
scenario is possible.
SEPTIC SYSTEM PERFORMANCE: The design of this septic system is based upon limited soils
testing, groundwater monitoring, and a visual assessment. It is possible that the actual soil conditions
are less favorable then the testing data indicated and that adverse, unforeseeable, changes in the
surface/subsurface water conditions could impact the performance of the system. Numerous other
factors, out of the control AKWWC, Inc., may adversely effect the long term perfom'.ance of the
system. Such factors include, but are not limited to. excessive number of residents in the house,
plumbing leaks, the use of septic system additives, failure to pump septic tank regularly, failure to
ahemate drainfields (when this is an option), or/and excessive use of water. Given these variables, it is
not possible to warrantee the p~rformance of a septic system.
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 in them.
NOTE: Additional charges for inspections will apply.
A final invoice will be issued once all work is complete for
inspections and documentation as required by the M.O.A.
Please refer to the following estimated inspection costs:
I. Conventional septic system with a single trench/bed, no sand filter: $525.00
2. Conventional septic system with a single trenchPoed, sand filter: $650.00
3. Conventional septic system, dual trenches, no sand filter: $775.00
4. Conventional septic system, dual trenches, sand filters: $950.00
5. Alternative Technology septic systems: $1000.00
6. Lined Intermittent Sand Filter with secondary drainfield: $1500.00
Page 7 of 7
Municipality of Anchorage
Development Services Department
Building Safety Division
On-Site Water and Waslea, ater Program
4700 Bragaw Slrect
P.O. Box 196650 Anchorage. AK 99519-6650
www.ci.anchorage.ak.us
(907) 343-7904
Waiver Review Worksheet
WRY: WR020040 PID~: 018-232-11 HA~:
Data Received: 7/9/02
Legal Description: Knlk Helahts Block K Lot 12
Engineer:. Jeffrey A. Garnese. P,E.
~Alaeka Water & Wastewatsr Consultants. Inc.
Applicant: Sherw Hoover
waive R. .aated: f;,'o/./
Criteria: Geology
A. Water Table
B. Soil Sorption
C. Permeability
D. Water Table Gradient
E. Horizontal Separation
Permit#:
Points:
Total:
Waiver is Granted: /..,// Waiver is not Granted:
List Conditions or Reasons for above:
Rec~: 1~2;)7~ Amount: $160.00 Date Paid: 7/012002
~UNICIPALITY OF ANCHOP~%GE
tteal and Environmental Protec: n
Fourth Floor West
825 L Street
Anchorage, Alaska 99501
264-4720
INbi:SE L[?i(;lii _ INSIDrc ',',¢1[)11t ..... LIQ!!i[) ',3FPTH ...... IIQUID C/\PACI [¥
TILE [)RAIN FIEkD:
TOTAL LENGTH
r~)loT, I ~." ~ HO'.i \','~. LI'~/~)O_ FOL;; ~),~tl~'4 _ _,.;,'~/\ tt._,l-~ tGI LIHI! ..... OF LINE
· c~ ...... /~~ SQ. ' ' I ENG rH OF ~'r-t' L
f,~>: ..... O:; Ar~{,v-
SEEPAGE FI'F:
Log Crib Rings Crib Size: 131 \,. ~_l,.1 L, LP I{ DISIAHCE FROM: WELL
-IO'l~[. EFFECFtVE
I}UILDI!i'.i ?.,'.Ii,DA [ IQ"] _. , idgAREST I_OF L IqE __ . A?SOI~,i::,riON AP.[~I (W/:xLL ARE/&) ......... SQ. ['T.
We 11
Class: Depth:
Well Distance To: Lot Line
Bldg: Sewer Line.:
Pipe Materials:
{~ of Bedrooms:
Installer:
Remarks:
?'? 9'" ;i:!:!!5 :J :J.
'I~' I
J"il::l;:.::]71'"ll.ll'l iqi..it'liii:iiLFi: ElF: liidiii:[)FUZuZd'l;!; .....
i'! [ I",! ;~; !','II..IH tZ;:, ;i; :!!i;1 l'::ll'qE:li:il !3iCFl.,.tti!Liii!N I:::1 t,!l::;!..I.. F:II"!E:, t::!N"r' ON'"'J:!; i[ 1"t!i ::!i;E.l'.il:::lEi!!!; I::' ;i; f!:!;F':'O:!ii;F::!!.. '!!{; h" :! CI lii;l"i ;i; ;iii;
:i.I;i!tl]il i:::'lii:liii;'i' t:::OiR F! I:::'l;;:];'v'f::IT[iil t.,ll+;t.l.. OF;: ;;;::t;i!!I;il t:::'liii;!]il;'i I:::'l;;ll;;: I::1 i:::'!..t!ii',l...]]C l.'.ll!:;l..I.
:i:i;l:::'lii;(]: ii] I:::' ;l; C:I:::I"i ;! ON:ii; !':ii',lD E:EIl",l;i!i;"t t:;i:t.iE: t' ;[ El!",! i]:' :i I:l(iil:,i;l:::ll"l:!!; I:::l!:;i:li:[ f: ;l "," f::l ;!; I .l:::lli',l .i!!Z '10
[!: i",!:i!i;'! I:::I I.. I..!::;I J' ]i] I; )
SEWAGE
GREATER ANCHORAGE AREA BOROUGH
r)EPARTMENT OF ENVIRONMENTAL QUALITY
3330 "C" TEL. EPHONE g74-456, ~u~?~
STREET ANCHORAGE, ALASKA 99503 , ,.,,~/
DISPOSAL SYSTEM -- APPLICATION AND PERMIT
'EGA,-DESOR,PTION zo'r/,z- K
INSTALLATION OF: SEPTIC TANK /~¢~ SEEPAGE PIT ~-¢¢'-
TYPE AND SIZE OF FACILITY TO BE SERVED / O ~} ~
FINANCED THROUGH TO BE INSTALLED BY
PERMIT NO.. /
, DRAIN FIELD , OTHER
NOTE: THIS PERMIT IS NOT VALID WITHOUT BOIL ]'EST
COMPLETION DATE ANTICIPATED
FINAL iNSPECTION: 24 HOUR NOTICE REQUIRED. BACKFILLING OF ANY SYSTEM WITHOUT FINAL INSPECTION BY THE
DEPARTMENT OF ENVIRONMENTAL QUALITY AUTHORITY Will be SUBJECT TO PROSECUTION.
SEPTIC TANK BIze [0
TYPE __ SEEPAGE AREA SIZE TYPE
MINIMUM DISTANCES, REQUIREMENTS
FOUNDATION TO S~EPTIC T.%NK ~:~ (-
WELL TO SEPTIC TANK {O
WATER MAIN TO SEPT]C TANK
DRAIN FIELD
SEEPAGE PIT
SEPTIC TANK, . SEEPAGE PIT _
TO RIVER, LAKE, STREAM.
DRAIN FIELD
CAST IRON INTO AND OUT Of SEPTIC TANK AND INTO Crl~t CROSSING GAP Of
EXCAVATION S FEET INTO UNDISTURBED SOIL.
4 INCH DIAMETER CAST IRON SIPHON PIPES ON SEPTIC TANK AND SEEPAGE PIT
FITTED WITH AIRTIGHT REMOVABLE CAPS.
GRAVEI~ BACKFILL
CONFORM TO BOROUGH REGULATIONS REGARDING INST/~LLA)ION.
LICENSED DESIGNER
DIAGRAM OF ~YSTEM
I CERTIFY THAT I AM FAMILiar WITH THE REQUIREMENTS OF GREATER ANCHORAGE AREA BOROUGH~ ORDINANCE NO. 28-08 AND THAT THE ABOVE
DEPARTMI'iNT OF HEALTH AND ENVIRONMENTAJ, I~ROTI,:CTION
Poue ~-650, 99502,- - ':~518 E. Tudor
AnehmmKe, Alaska
F'erformed for,.,',:A.?/?:w/4 ::v://:'M:~ ~,::.:,:'(- ~,~:_~' ~:. Date pe~fo~,n_d' ' ,,, ~ ~',/17, ..
Legal Description:,, ~L:~...
'~'his fora reports: 'Soils log ~- Percolation test
De~th
Feet
2 - ................
4 .~,'/
12--
13-
Was ~round
If yes, at what depth?
Reading Date Gross Tin]e Net Time Depth to H20 Net Drop
Percolation
te
minute,
Proposed installation: Seepage Pit ' Orain Field
60~INENTS. ~ . - , -'-' - - ;.. '
Performed By: I ~-' z~ ~.er,t.ttf'~d By.,~ '/"~~, ' --~'- -' ~ D.a.ge.' ·
WATER W~LL LOG
FOSS DRILLING
1336 Ingra Street
Anchorage, A~aska 99501
~,~dtx~'-~,,~ilTy OF ANC~QE
~- / ~T. &
~'~" ~,/,L P~ Oi'~-CTION
0O, T - 4 ~77
SIZE 0~ CA~I~D"__.OE~ OF RO~~. CA~ TO___ /~ ~.
STATIC WATER L~EL /~/ ~. YZE~~GAL.PER.MIN. WITH~
FE]~ OF D~OWN.
.' ~V ~" ' ~'~ ' '' '
DATE COMPLET~_~/g/~ . ?U~ TO BE S~ AT~ V~ /;~ ,
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