HomeMy WebLinkAboutApplication - PermitI
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GARFIELD COUNTY SEPT! PERMIT APPUCATION
I 08 8th Street, Su ite 40 1, Glenwood Springs, Co 8160 1
Phone: 970-945-821 2/ Fax: 970-384-3470 /Inspection Line : 970-384-5003
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Parcel No: {lhis inlcrmalm ts avaiable at 111e assessas ollial 970-94~91 34's '2 II-0 "'7 2 17 :z 1.. t:. 110
Job Address : (If 111 address has 1101 been asslgned. please ptOYide Cr. 1-hwy or Sll88l NSM &/!l:t n legal~ ~ ' ~ oo&o C R:So"J. :O'a.. '-
Block No: Lots;. 'I Ac/Z Lot~: ~ Subd./ Exemption:
/o/()IVvA>ff,o/T .Z I !¥e.
CNmer: (propefty owner) Mailing Address 2 '816.Js-Ph : AHPh:
lJIZ ,~.V . /fZ.A.A/ I l./76.tyAJtl lw1~ rA!lACtiVT~ ("cJ 77o ~ 1'f 8 -6389
Contractor:
OwNFil.
Mailing Address Ph: A~Ph:
Engineer. Mailing Address ~· (:JISO ~ ~70 ,~'IS'-'fJ78 All Ph:
Grt=I71EOI. EN.C.It . f(]oB -Mtl' .... ~f"'k ~h'V vlv~
PERMIT REQUEST FOR : >::[ New Installation ( ) Alteration ( ) Repair
WASTE TYPE : ~!?Welling ( )Transient Use ( )Commercial or Industrial ( )Non-Domestic wastes
( )Other-Desaibe
BUILDING OR SERVICE TYPE: Hou~~
Ntmber ~bedrooms s GarbageGrinder)QYes ( )No
SOURCE & TYPE OF WATER SUPPLY: j>9WELL ( )SPRING ( )STREAM OR CREEK ( )CISTERN
If supplied by COMMUNITY WATER , give name of supplier.
DISTANCE TO NEAREST COMMUNITY SEWER SYSTEM: 2.~1·
Was an effort made to comect lo the Comm..Uly System? AcJr /N~/6/(7
YOUR INDIVIDUAL SEWAGE DISPOSAL SYSTEM PERMIT WILL NOT BE ISSUED WITH OUT A SITE PLAN
GROUND CONDmONS:
Depth to 1• Ground Water Table Pen:ent Ground Slo~
TYJ..E Of INDMOUAL SEWAGE DISPOSAL SYSTEM 0SDS) PROPOSED:
; ~ ·"· Tank ( )Aeration Plant ( )Vaun ( )Vault Privy ( )Composling Toilet
( )Recycling , Potable Use ( )Recycling , other use ( )Ptt Privy ( )lnciner800n Toilet ( }Chemical Toilet
. ( iOther· Oesaibe
~ISPOSAL BY:
rplion trench, Bed or Ptt ( )Underground Dispersal ( )Above Ground Dispersal ( )Evapotranspiration ( )Sand filter
( )Wastewater pond ( )Other· Describe
Wdl effluent be discharged directly into waters of the state? ( )YES J(tNO
PERCOLATION TEST RESULT: (ID be~edby Reglsaeled Prcfesslonal Engtnea-, llhe Engineer does lhel'ettdaliln Test)
Minutes /O per inch in hole No.1 Minutes £~ per inch in hole No.3
Minutes L1 per inch in hole No.2 Minutes per inch in hole No._
Name, address& telephoneofRPE v.ttomadesollabsorption test . ~C~b ~-"'"· ''"'AL EftA":.~vv.~-· .7
1 Name, address & telephone of RPE responsible for design orthe system: X..So/1 JAnCT: A v_e_ C.-~ •n 7_v#<"T.~. JA/
Applicant acknowledges lhatlhe completeness of lhe application is conditional upon such further mandalory and additional test and reports as may be required by
lhe local heaHh department to be made and furnished by lhe applicant or by lhe local health department for purposed of the evaluation of the application ; and the
Issuance of lhe pennit is subject to such terms end conditions as deemed necessal'f to insure compfiance with rules and regulations made, infonnation and
reports submitted herewith and required to be submitted by lhe applicant are or will be represented to be true end correct to the best of my knowledge and belief
and are designed to be relied on by lhe local department of health in evaluating the same for purposes of issuing lhe penni! applied for herein. I further
understand lhal any falsification or misrepres~~n may result in lhe denial of lhe application or revocation of any permit granted based upon said application
' and legal action for petjury as provid~ • ~ 6 /1:<' 6 A'fl
OWNERS SIGNATURE DAU' /
STAFF USE ONLY
Pennit Fee: 00 Perk Fee: Total fee!: Brra~CD N: /3. -'7 3. C)D
Septic Permit#: 4 4 7 5 Issue D7 } 2 1 J Cf)
Building & Planning Dept: ' ,
APPROVAL DATE
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:Jl/3 i nR.QI"' ..e.4 s~RFIELD COUNTY BUILDING AND SANITATION DEPARTMENT
108 Eighth Street, Suite 201
Glenwood Springs, Coloradof 81601
INDIVIDUAL SEWAGE DISPOSAL PERMIT
PROPERTY
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Phone {970) 945-8212
Owoe•'• No: I r".;¥~i ;t) r-i2fl p,.,.,, Add'"" q:.rf)~ ~
System Location ()Dig{) ('!_f2_ '5o 3 -Eb ra u_fe,
Legal Description of Assessor's Parcel No. M.mu.Uiefl!: /2./d.tf3 : {'bt 5
SYSTEM DESIGN
-----Septic Tank Capacity (gallon) ________ Other
-----Percolation Rate (minutes/inch) Number of Bedrooms (or other)-----
Required Absorption Area· See Attached
Special Setback Requirements:
Permit 4475
!4D11DziN~
This does not constitute
a building or use permit.
Phone OJL/ K' -(@(!
Date _____________ Inspector ---------------------------
FINAL SYSTEM INSPECTION AND APPROVAL (as installed)
Call for Inspection (24 hours notice) Before Covering Installation
System Installer _______________________________________ _
Septic Tank Capacity _____________________________________ _
Septic Tank Manufacturer or Trade Name -------------------------------
Septic Tank Access within 8 " of surface -------------------------------
Absorption Area---------------------------------------
Absorption Area Type and/or Manufacturer or Trade Name-------------------------
Adequate compliance with County and State regulations/requirements ____________________ _
Other __________________________________________ _
Date _____________ Inspector---------------------------
RETAIN WITH RECEIPT RECORDS AT CONSTRUCTION SITE
•CONDITIONS:
1. Aillnstailation must comply ~ith all requirements of the Colorado State Board of Health Individual Sewage Disposal Systems Chapter
25, Article 10 C.R.S. 1973, Revised 1984.
2. This permit Is valid only for connection to structures which have fully complied with County zoning and building requirements. Con·
nection to or use with any dwelling or structures not approved by the Building and Zoning office shall automatically be a violation or a
requirement of the permit and cause for both legal action and revocation of the permit.
3 . Any person who constructs, alters, or installs an Individual sewage disposal system In a manner which Involves a knowing and malarial
variation from the terms or specifications contained In the application of permit commits a Class I, Petty Offense ($500.00 fine-6
months in jail or both).
White· APPLICANT Yellow· DEPARTMENT
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Geotechnical ~-·Engineering
Group, Inc.
INDIVIDUAL SEWAGE DISPOSAL SYSTEM DESIGN
Proposed Single Family Residence
60 Gardner Lane
Battlement Mesa, Garfield County, Colorado
Prepared For:
Mr. Brian Trani
47 Bryan Loop
Parachute, CO 81635
Job No. 2,951
May 15,2008
Geotechnical, Environmental and Materials Testing Consultants
Grand Junction -Montrose -Moab-Crested Butte
(970) 245-4078 • fax (970) 245-7115 • geotechnicalgroup.com
2308 Interstate Avenue, Grand Junction, Colorado 81505
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TABLE OF CONTENTS
SCOPE ..................................................................................................................... 1
SUMMARY OF CONCLUSIONS ............................................................................. 1
SITE CONDITIONS .................................................................................................. 2
PROPOSED CONSTRUCTION ............................................................................... 3
INDIVIDUAL SEWAGE DISPOSAL SYSTEM DESIGN ......................................... 3
SUBSURFACE CONDITIONS ..........................................................•............................ 3
DESIGN CONSIDERATIONS ................................................................................... 4
DESIGN CALCULATIONS .•..••................................................•••...•.••••••••••...•..••.••••• 4
PROPOSED RESIDENCE ........................................................................................... 4
l DESIGN REQUIREMENTS ..................................................................................... 5
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SYSTEM INSTALLATION ....................................................................................... 7
OPERATION AND MAINTENANCE ..................................•.•••••....••••••••••••......•••••••• 9
LIMITATIONS ......................................................................................................... 10
FIG. 1 -VICINITY MAP
FIG. 2-LOCATION OF ABSORPTION FIELD
FIG. 3-ABSORPTION FIELD PLAN VIEW
FIG. 4-ABSORPTION FIELD CROSS SECTION
APPENDIX A -LOCATION OF EXPLORATORY TEST PITS
...J LOGS OF EXPLORATORY BORINGS
SOIL PERCOLATION TEST DATA
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SCOPE
This report presents the results of an Individual Sewage Disposal System Design
for the proposed residence to be located at 60 Gardner Lane, Battlement Mesa, Garfield
County, Colorado. Our services were conducted to provide design criteria for the
proposed sewage disposal system. The report includes descriptions of subsoil and
groundwater conditions found in three exploratory test borings, percolation testing results
and design and construction criteria for the proposed individual sewage disposal system
(ISDS). Our services do not include design of a basement lift station. The report was
prepared from data collected from percolation testing and developed during engineering
analysis and experience with similar conditions. This investigation was performed in
general conformance with our Proposal No. 08-032 dated March 17, 2008.
SUMMARY OF CONCLUSIONS
1.
2.
Subsoils found in the three exploratory test pits consisted of gravelly, sandy
silty clay with cobbles to the maximum depths explored of 7 feet below
ground surface. Virtual drill rig refusal was encountered at about 7 feet on
all exploratory test borings. Groundwater was not encountered in the
borings at the time of this study.
The proposed individual sewage disposal system for this site is a bed type
absorption field. We recommend a field of 30 feet by 51 feet dimension
encompassing an area of 1,530 square feet. Detailed design, installation,
and operations and maintenance recommendations are included in the text
of this report.
Individual Sewage Disposal System Design
60 Gardner Lane
1
Battlement Mesa, Garfield County, Colorado
GEG Job No. 2,951
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3.
4.
Geotechnical Engineering Group, Inc. (GEG) should be called to observe
and document system installation, prior to backfill.
An area located north of the proposed system is designated the "future
repair area". This area should be set aside for potential septic system
remediation. In no case should the proposed system area or future repair
area be constructed with a structure or pavement.
0 SITE CONDITIONS
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The subject site was located at 60 Gardner Lane in Battlement Mesa, Colorado. A
v icinity map showing the site location is included as Fig . 1. The nearest water source was
identified about 75 feet south of the proposed system at the time of our site visit. The
proposed absorption field area was 3 to 5 feet lower in elevation than the proposed
building pad. The subject site was located within the Monument Ridge Subdivision.
Scattered rocks and grasses covered the site. An existing excavation for the proposed
residence was excavated about two to three feet into the ground at the time of our
investigation. A drainage channel was noted bordering the south portion of the lot. The
drainage channel was about 10 to 15 feet deep, about 30 to 40 feet wide at the crest and
had a channel slope inclination of about 2 horizontal to 1 vertical or steeper down from the
site. Gardner lane was north of the site. Vacant land was east, west and south of the
site. The subject site sloped to the west -southwest at an inclination of approximately 5 to
10 percent. The vicinity sloped down toward the northwest at an inclination of
approximately 10 to 15 percent (USGS, Parachute, Colorado topographic quadrangle
dated 1962 revised 1973).
Individual Sewage Disposal System Design
60 Gardner Lane
Battlement Mesa, Garfield County, Colorado
GEG Job No. 2,951
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PROPOSED CONSTRUCTION
We understand the proposed construction will consist of a single-story 5 bedroom
single family residence and detached garage/shop. The garage/shop will not be
connected to the proposed sewage disposal system. The residence will be approximately
2,000 square feet in plan area and have a basement. A lift station will be installed inside
the basement to convey waste from that level. There will be one washer and one garbage
disposal. If proposed construction is different than what is described above, we should
be notified so that we can re-evaluate the design and recommendations given.
INDIVIDUAL SEWAGE DISPOSAL SYSTEM DESIGN
Subsurface Conditions
Subsurface conditions at the site were investigated by observing and logging three
exploratory borings. Locations of exploratory borings are shown on Fig. A-1. Subsurface
conditions consisted of gravelly, sandy, silty clay with cobbles to the maximum depths
explored of 7 feet below ground surface. The gravelly, sandy, silty clay was slightly moist
to moist and brown to tan. Virtual drill rig refusal was encountered at about 7 feet in all
exploratory borings. Groundwater was not encountered in the borings at the time of this
Individual Sewage Disposal System Design
60 Gardner Lane
Battlement Mesa, Garfield County, Colorado
GEG Job No. 2,951
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study. We considered a high seasonal groundwater level of 15 feet depth for purposes of
this design.
We performed soil percolation testing at 6 locations around the three exploratory
borings. Percolation test rates varied from 4 to 40 minutes per inch. We used a design
soil percolation rate of 40 minutes per inch. Soil percolation results are presented on
Figs. A-6 through A-8.
DESIGN CONSIDERATIONS
Based on our site observations and percolation testing, we believe a field
absorption type system can perform satisfactorily for the proposed ISDS .
DESIGN CALCULATIONS
Calculations and design parameters used to size the absorption field follow:
Proposed Residence
Average flow for 5 bedrooms @ 100 gallons/bedroom per day
Individual Sewage Disposal System Design
60 Gardner Lane
Battlement Mesa, Garfield County, Colorado
GEG Job No. 2,951
5 X 1 00 = 500 gallons/day
(Proposed residence _::2,000 W)
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Peak flow = 150% of average = 750 gallons/day
Design percolation rate= 40 minutes/inch
A = Q r;: where
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t = Percolation rate (minutes/inch)
Q =Peak flow
A = Absorption field area
POO A= ---.J4Q = 940 square feet
5
Increase absorption area by 40% for each automatic washer and 20% for each disposal
Area = (0.2 + 0.4 + 1) X950 = 1 ,520 square feet
Design dimension= 30 x 51 feet= 1,530 square feet
DESIGN REQUIREMENTS
From design considerations, experience, and review of time of year profile the
exploratory borings were observed, we estimate a high seasonal groundwater 15 feet
below the ground surface. The gravel absorption bed system should provide at least 4
feet of usable infiltration soil between the bottom of the gravel seepage bed and the
estimated high seasonal water table.
1. A minimum size of 2,000 gallon septic tank is required for septic effluent
from the proposed residence. A removable, cleanable septic tank filter such
as an Orenco FTW-0444-36-A Bio Filter or better should be installed at the
Individual Sewage Disposal System Design
60 Gardner Lane
Battlement Mesa, Garfield County, Colorado
GEG Job No. 2,951
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2.
3.
outlet. As discussed above, a gravel absorption bed system is proposed to
discharge septic effluent to the underlying subsoils. The design absorption
field will be 30 feet by 51 feet in lateral dimension and encompass an
equivalent area of 1,530 square feet.
A 12" gravel seepage bed will be placed over the absorption area. The
gravel seepage bed shall consist of 1.0" -2.5" screened rock with
individual aggregate components of uniform size. Four inch perforated
effluent discharge lines will be embedded in the gravel seepage bed with a
minimum of 6" of gravel under, and 2" of gravel over each line.
The piping system should consist of 4 laterals of four inch perforated
effluent discharge lines, 48 feet in length. Details of the system are
included on Figs. 3 and 4, attached.
4. After the gravel seepage bed is installed, synthetic filter fabric (140-200
mesh), hay, or untreated building paper should be placed over the gravel
and the system covered with a soil cap. The soil cap should consist of 18-
inches to 24-inches of native soil mounded 5% to promote surface run off
away from the absorption area.
5 The area located north of the proposed absorption system is designated the
future repair area, see Fig. 2. The future repair area should be set aside for
potential septic system remediation. In no case should this area be
constructed with a structure. The same set back and grade requirements
apply to the future repair area as the absorption system area.
6. Eighteen inches to 24 inches of soil cover is recommended for aiiiSDS
elements (excepting maximum 8 inches soil cover over septic access ports)
to mitigate frost concerns.
The installer should confirm the feasibility of gravity discharge of sewage effluent
from the residence to the absorption field. If field measurements do not confirm the
design assumptions, gravity discharge of sewage effluent from the existing residence to
the absorption field can not be assured. Please contact the design engineer to address
any design modifications necessary for effective operation of the ISDS if the above design
assumptions are not upheld.
Individual Sewage Disposal System Design
60 Gardner Lane
Battlement Mesa, Garfield County, Colorado
GEG Job No. 2,951
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4.
5.
SOURCE SEPTIC ABSORPTION BUILDING SEWER
TANK FIELD
water line 10 feet 25 feet 10 feet
dwelling 10 feet 20 feet -
I property lines 10 feet 10 feet 10 feet
subsoil drains 10 feet 25 feet 10 feet
open ditch 50 feet 50 feet 50 feet
lined/gated 25 feet 25 feet 25 feet
ditch
solid pipe 10 feet 10 feet 10 feet
ditch
dry gulch 10 feet 25 feet 10 feet
pond 50 feet 50 feet 50 feet
** Add 8 feet additional distance for each 100 gallons per day of design
flow over 1 ,000 gallons per day as specified in the table.
To help avoid surface flow infiltration and saturation of the new absorption
system, abandonment of flood irrigation within 50 feet of any ISDS element
is recommended.
All sewer lines and effluent distribution p1p1ng should be 4 inches in
diameter, have glued joints, and should looped at termination of discharge.
Septic tank lines should be placed level. All lines discharging sewage from
the residence to the septic tank shall maintain fall of between 1/8 inch and
% inch per foot and shall employ sweep 90's or 2-45's at all turns. Sewer
lines from the dwelling to the septic tank and at least 6 feet from the septic
tank outlet must meet minimum standard ASTM-3034. Sewer lines under
driveways shall always meet minimum Schedule 40 PVC standards and
should be encased with corrugated metal pipe when covered with less than
24 inches of soil.
6. Eighteen inches to 24 inches of soil cover should be maintained over all
ISDS components to mitigate freezing of septic effluent (excepting
maximum 8 inches cover over septic access ports).
7. The installer should not place fill in the open excavation until inspected and
approved by the design engineer. Additionally, the final cover should not be
placed on sewer lines, septic tank, or the absorption area until the system
has been inspected and approved by the design engineer.
Individual Sewage Disposal System Design
60 Gardner Lantt
Battlement Mesa, Garfield County, Colorado
GEG Job No. 2,951
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8.
9.
10.
The installer should provide 48 hour notice to the engineer for all required
inspections.
Four inch effluent distribution lines should be embedded in gravel with a
minimum of 6 inches of gravel under, and 2 inches of gravel over each line.
A layer of 1.0 to 2.5 inches screened rock with individual aggregate
components of uniform size should be used. A covering of untreated
building paper, hay, straw, or synthetic filter fabric should be placed on top
of the gravel before placing the surface cap.
The system contractor shall be aware of the potential for construction
activities to reduce soil permeability's at the site through compaction,
smearing, and shearing. The following precautions and construction
procedures should be employed during installation to mitigate disturbance to
native soils:
a. Excavation should proceed only when the moisture content of the soil
is below the plastic limit.
b. Excavation and backfill equipment should work from the surface
where at all practical to avoid compaction of the soils at depth.
c.
d.
The bottom and sidewalls of the excavation should be left with a
rough, open surface. The appearance should be that of broken or
ripped soil as opposed to a sheared, smeared, or troweled surface.
Any smoothed or smeared surfaces should be removed with a
toothed rake or shallow ripper taking care to remove loose residues
from the bottom of the excavation by hand if necessary.
Care should be taken in placing fill materials in the excavation to
avoid damaging the exposed soil surfaces.
OPERATION AND MAINTENANCE
Performance of the subject sewage disposal system will be dependent on suitable
operations and maintenance practices. The owner must understand and accept
responsibility for operations and maintenance of the system. Important factors include:
Individual Sewage Disposal System Design
60 Gardner Lane
Battlement Mesa, Garfield County, Colorado
GEG Job No. 2,951
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1.
2 .
3.
4.
5.
6.
The owner should install a structural barrier if necessary and take
precautions to prevent vehicular traffic, excessive surface watering,
accidental flooding, or other activities in the vicinity of the absorption field
which may compact, saturate, or otherwise alter the subsurface soil
parameters used in designing the septic system.
The owner should plant and maintain grass or other shallow rooted cover
crop to prevent erosion and promote evapotranspiration over the absorption
area.
The owner should inspect and maintain the required drainage away from the
absorption area to prevent saturation from precipitation and surface flows.
The owner should inspect and prevent intrusion of burrowing animals and
deep rooted plants into the absorption area.
The owner should conduct periodic maintenance of the septic system by
removing accumulated sludge from the septic tank every 3 to 4 years to
prevent clogging of the absorption area. The septic tank filter should be
inspected on a yearly basis, minimum.
The owner should not allow disposal of harmful substances into the subject
sewage disposal system.
LIMITATIONS
Satisfactory performance of an individual site disposal system is dependent on
several factors including subsurface evaluation, design, installation, operation and
maintenance procedures. It is important to understand there is an element of risk inherent
with the performance of each individual site disposal system. The design engineer can
provide design measures and recommendations to help mitigate risk. A comprehensive
] review by the health department is recommended to help mitigate risk. The risks
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Individual Sewage Disposal System Design
60 Gardner Lane
Battlement Mesa, Garfield County, Colorado
GEG Job No. 2,951
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associated with overall system operation/performance must be understood and accepted
by the owner.
The scope of work performed is specific to the proposed construction and the client
identified by this report. Any other use of the data, recommendations and design
parameters (as applicable) provided within this report are not appropriate applications.
Other proposed construction and/or reliance by other clients will require project specific
review by this firm. Changes in site conditions can occur with time. Changes in standard
of practice also occur with time. This report should not be relied upon after a period of
three years from the date of this report and is subject to review by this firm in light of new
information which may periodically become known.
Design notes contained in this report are based on limited subsurface data.
Variations in subsurface conditions not indicated by the test borings are possible.
Subsurface conditions may also change with time. The installation contractor should
observe actual subsurface conditions exposed at the time of excavation. If differing
conditions are suspected, installation should cease immediately. Garfield County
Health Department at (970)-625-5200 and our office should be contacted to review
conditions and make necessary design changes at the time of installation. The
recommendations contained in the report are also based on information supplied to
GEG by the client. Geotechnical Engineering Group does not accept responsibility for
variation in the assumed design parameters.
Individual Sewage Disposal System Design
60 Gardner Lane
Battlement Mesa, Garfield County, Colorado
GEG Job No. 2,951
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associated with overall system operation/performance must be understood and accepted
by the owner.
The scope of work performed is specific to the proposed construction and the client
identified by this report. Any other use of the data, recommendations and design
parameters (as applicable) provided within this report are not appropriate applications.
Other proposed construction and/or reliance by other clients will require project specific
review by this firm. Changes in site conditions can occur with time. Changes in standard
of practice also occur with time. This report should not be relied upon after a period of
three years from the date of this report and is subject to review by this firm in light of new
information which may periodically become known.
Design notes contained in this report are based on limited subsurface data .
Variations in subsurface conditions not indicated by the test borings are possible.
J Subsurface conditions may also change with time. The installation contractor should
l observe actual subsurface conditions exposed at the time of excavation. If differing
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conditions are suspected, installation should cease immediately. Garfield County
Health Department at (970)-625-5200 and our office should be contacted to review
conditions and make necessary design changes at the time of installation. The
recommendations contained in the report are also based on information supplied to
GEG by the client. Geotechnical Engineering Group does not accept responsibility for
variation in the assumed design parameters.
Individual Sewage Disposal System Design
60 Gartlner Lane
Battlement Mesa, Garfield County, Colorado
GEG Job No. 2,951
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We believe this design was conducted in a manner consistent with that level of
care and skill ordinarily used by geotechnical engineers practicing in this area at this
time.
No other warranty, express or implied, is made. If we can be of further service in
discussing the contents of this report or the analysis of the influence of the subsurface
conditions on the design of the proposed construction, please call.
Sincerely,
GEOTECHNICAL ENGINEERING GROUP, INC.
Robert W. Anderson
Project Engineer
RWA:JPW:tl
(1 copy sent)
1 cc: Brian Trani [briantrani@yahoo.com}
Individual Sewage Disposal System Design
60 Gardner Lane
Battlement Mesa, Garfield County, Colorado
GEG Job No. 2,951
John P. Withers, P.E.
Principal Engineer
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Individual Sewage Disposal System
Monument Ridge Subdivision
60 Gardner Lane
Battlement Mesa, Colorado
Job No. 2,951 Vicinity Map Fig. 1
•
ote: This figure was prepared based
on a drawing provided by Brian Trani
nd on notes obtained during our field
tudy and is intended to show
approximate locations of proposed
repair area, and proposed leach field.
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J COUNTY ROAD 303
l Proposed Repair Area
30X51
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2, 000 Gallon Septic
Tank Wilh Filter
•
rRECEPTION NO. 35030;}
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] Job No. 2,951 Lot View Fig. 2
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4" Perforated Effluent
Distribution Pipe. No Slope.
4" Solid Pipe Looped
at Ends, With No Slope
Job No. 2,951
4" Solid Pipe Slope
i" Per Foot Max
From 2,000 Gallon Septic Tank
Slope < !" Per Foot.
Distribution Box
4" Solid Pipe Slope
l" Per Foot Max
51 I
~--------30''--------~
Scale: 1 "=1 0'
System Plan View Fig. 3
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12" Seepage Bed
1.0 -2.5 inch Washed rock
4-inch Perforated Distribution Lines, typical
(6" Gravel under, 2" Gravel over minimum)
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Synthetic Filter fabric,
hay or untreated building
paper over gravel
Soil Cap
(mound 5%)
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Job No. 2,951
Scale 1"=5'
Cross Section A-A
Absorption Field Cross Section Fig. 4
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APPENDIX A
LOCATION OF EXPLORATORY TEST BORINGS
LOGS OF EXPLORATORY TEST BORINGS
RESULTS OF PERCOLATION TESTING
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SATURATION AND PREPARATION
DATE: 4/11/08
TIME AT START OF SATURATION:
DEPTH TIME AT
HOLE (IN CHES) START OF
NUMBER (4" DIAMETER) INTERVAL
P-2 18" 8:04
18" 8:14
18" 8:24
18" 8:34
18" 8:44
18" 8:54
36" 8:06
36" 8:16
36" 8:26
36" 8:36
36" 8:46
36" 8:56
Job No. 2,951
PERCOLATION TEST
DATE : 4/12/08
WATER IN BORINGS AFTER SATURATION
DYES
PERCOLATION TEST RESULTS
DEPTH TO WATER
T IME
INTERVAL START OF END OF
(M INUTES) INTERVAL INTERVAL
(INCHES) (INCHES)
10 0 2% n
10 2Y:t II 3%"
10 3Y:t" 4%"
10 4%" 5 "
10 5 " 5%"
10 5%" 6%"
10 0" 2%"
10 2%" 3 "
10 3" 4 "
10 4" 4%"
10 4Yz" 5"
10 5" 5%"
Depth to Water
N/A
CHANGE PERCOLATION
IN WATER RATE
DEPTH (MIN/INCH)
(INCHES)
2% II 4
1 II 10
3/4" 13
3/4" 13
1/2" 20
3/4" 13
2% II 4
3/4" 13
1" 10
1/2" 20
1/2" 20
1/2" 20
Fig. A-7
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la..Group, Inc.
SATURATION AND PREPARATION
DATE: 4/11/08
TIME AT START OF SATURATION:
DEPTH TIME AT
HOLE (INCHES) START OF
NUMBER (4 ' DIAMETER) INTERVAL
P-3 18" 8:08
18" 8 :18
1811 8 :28
18" 8:38
1811 8 :48
1811 8:58
36" 8:10
36" 8:20
36" 8:30
36" 8:40
36" 8:50
36" 9:00
Job No. 2,951
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PERCOLATION TEST
DATE : 4/12/08
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WATER IN BORINGS AFTER SATURATION
D YES
PERGOLA TION TEST RESULTS
DEPTH TO WATER
T IME
INTERVAL START OF END OF
(M INUTES) INTERVAL INTERVAL
(INCHES) (I NCHES)
10 0 2Y2 It
10 2~" 3%"
10 3% n 4 11
10 4" 5 "
10 5 " 5Y2 II
10 5~11 6 "
10 0" 2 "
10 2 It 3% II
10 3%" 4 "
10 4 " 4% II
10 4% II 5"
10 5" 5%"
Depth to Water
N/A
CHANGE PERCOLATION
IN WATER RATE
DEPTH (MIN/INCH)
(INCHES)
2Y2 II 4
1%" 8
1/4" 40
111 10
1/2" 20
1/2" 20
2" 5
11/4" 8
314 11 13
1/4" 40
3/4" 13
3/4" 13
Fig. A-8
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