HomeMy WebLinkAbout02528 4
GARFIELD COUNTY BUILDING AND SANITATION DEPARTMENT mit 2528
109 8th Street Suite 303 Assessor's Parcel No.
Glenwood Springs, Colorado 81601
Phone (303) 945 -8212
This does not constitute
INDIVIDUAL SEWAGE DISPOSAL PERMIT a building or use permit.
PROPERTY
Owner's Name Puma Paw Ranch, Tnr. Present Address P.O. Box 10997, Aspen, CO phone 925 -3065
•
System Location 1793 County Road 219, Rifle, CO
Legal Description of Assessor's Parcel No.
SYSTEM DESIGN
2- / 6 O Septic Tank Capacity (gallon) Other
/ y 1) Percolation Rate (minutes/inch) Number of Bedrooms (or other) 7
Required Absorption Area - See Attached
Special Setback Requirements: ��DD II g }.-
Date //- A W' 9 9 c Inspector Zix� n7_!/ f EX .44,91 AMA.
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 S7z4 ttliCrf st.g.P'QL) LFrricvt 4O - 2 0 - C!
RETAIN WITH RECEIPT RECORDS AT CONSTRUCTION SITE
•CONDITIONS:
1. All installation must comply with 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 material
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
••
• INDIVIDUAL SEWAGE DISPOSAI. SYSTEM APPLICATION
Puma Paw Ranch Inc.
Barbara W. Sheffer - President
OWNER
ADDRESS P.O. Box 10997 Aspen Co 81612 PHONE (970) 925 -3065
CONTRACTOR Tumble M Cnnst.rurtinn
ADDRESS P.O. Box 636 Gypsum Co. 81637 PHONE (970) 524 -7429
PERMIT REQUEST FOR ( ) NEW INSTALLATION (X) ALTERATION ( ) REPAIR
Attach separate sheets or report showing entire area with respect to surrounding areas, topography of area,
habitable building, location of potable water wells, soil percolation test holes, soil profiles in test holes (See page 4).
LOCATION OF PROPOSED FACILITY: COUNTY Garfield
Near what City or Town Rifle Size of Lot
Legal Description or Address 1793 County Road 219 Rifle CO 81650 •
WASTES TYPE: (X) DWELLING ( ) TRANSIENT USE
( ) COMMERCIAL OR INDUSTRIAL ( ) NON - DOMESTIC WASTES
( ) OTHER - DESCRIBE
•
BUILDING OR SERVICE TYPE: Home
Number of Bedrooms Seven Number of Persons Fourteen
(x) Garbage Grinder ( X) Automatic Washer ( X) Dishwasher
SOURCE AND TYPE OF WATER SUPPLY: (x) WELL ( ) SPRING ( ) STREAM OR CREEK
Give depth of all wells within 180 feet of system: None
If supplied by Community Water, give name of supplier
GROUND CONDITIONS:
Depth to bedrock: Approximately 40 Pte.
Depth to first Ground Water Table Four Feet
Percent Ground Slope 3%
DISTANCE TO NEAREST COMMUNITY SEWER SYSTEM: Two Miles
Was an effort made to connect to comm system? ( ) YES x) NO
TYPE OF INDIVIDUAL SEWAGE DISPOSAL SYSTEM PROPOSED:
( X) SEPTIC TANK ( ) AERATION PLANT ( ) VAULT
( ) VAULT PRIVY ( ) COMPOSTING TOILET ( ) RECYCLING, POTABLE USE
( ) PIT PRIVY ( ) INCINERATION TOILET ( ) RECYCLING, OTHER USE
( ) CHEMICAL TOILET ( ) OTHER - DESCRIBE
FINAI. DISPOSAL BY:
( X) ABSORPTION TRENCH, BED OR NT ( ) EVAPOTRANSPIRATION
( ) UNDERGROUND DISPERSAL ( ) SAND FILTER
( ) ABOVE GROUND DISPERSAL ' ( ) WASTEWATER POND
( ) OTHER- DESCRIBE
WILL EFFLUENT BE DISCHARGED DIRECTLY INTO WATERS OF TFIE STATE? No
.2
. ° PERCOLATION TEST RESULTS: ("I'o be completed by Registered Professional Engineer)
. Minutes a a- per inch in bole No. I Minutes 2 per inch in hole No. 3
Minutes 7 c l per inch in hole No. 2 Minutes 19 per inch in hole No. 4
} or sic\r∎ poor poses we_ w■ \\ use '=i-o m irk per i nc \
Name, address and telephone of RPE who made soil absorption tests: Zancanella & Associates, Inc.
1005 Cooper Avenue Glenwood Springs, CO 81601
Name, address and telephone of RPE responsible for design of the system: Zancanella & Associates, Inc.
1005 Cooper Avenue, Glenwood Springs, CO 81601
Applicant acknowledges that the completeness of the application is conditional upon such further mandatory and
additional tests and reports as may be required by the local health department to be made and furnished by the
applicant or by the local health department for purposes of the evaluation of the application; and the issuance of the
permit is subject to such terms and conditions as deemed necessary to insure compliance with rules and regulations
adopted under Article 10, Title 25, C.R.S. 1973, as amended. The undersigned hereby certifies that all statements
made, information and reports submitted herewith and required to be submitted by the applicant are or will be
represented to be true and correct to the best of my knowledge and belief and are designed to be relied on by the
local department of health in evaluating the same for purposes of issuing the permit applied for herein. 1 further
understand that any falsification or misrepresentation may result in the denial of the application or revocation of any
permit granted based upon said application and in legal action for perjury as provided by law.
•
Signed___Mubwodb Qk Le leave". £ M a Date (l 1'Jt \ C AC
PLEASE DRAW AN ACCURATE MAP TO YOUR PROPERTY!!
3
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SEPTIC TANK LOCATION PUMA PAW
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CALCULATIONS FOR LEACH FIELD SIZE
Select Fill
Current Proposed Residence is 3 bedroom Victorian
Current Proposed Lodge is 4 bedrooms
Therefore:
7 bedrooms X 2 people /bedroom = 14 people
Peak Flow = 14 people x 75 gpd /person = 1050 gallons per day average
Maximum daily sewage flow = 150% of average
1.5 x 1050 gpd = 1575 gallons per day
The absorption area for a normal gravel type leach field is calculated using the following
formula ( the factor of 1.5 is used for a residence with a garbage disposal system and an
automatic clothes washer):
A= (1.5)x(Q)x(Sauare root of 0
5
Where Q is max daily flow rate = 1575 gallons per day
Using a material with a percolation rate of 40 minutes /inch
t = percolation rate = 40 minutes per inch
therefore:
A= (1.5)x(1575)x(Sauareroot of 401= 2988.4 square feet
5
According to the state department of health, when the infiltrator leaching chamber is
installed in a bed configuration, a reduction of 40% in the size of the absorption area is
allowed.
therefore:
0.60 x 2988.4 sq. ft. = 1793.0 square feet of infiltrators
The area of one infiltrator unit = 18.75 square feet
therefore:
the number of infiltrator units required = 1793 sq. ft./18.75 sq. ft. = 95.6 units
for uniformity of leach bed area , 96 units will be used. There are 44 existing
infiltrator units, we propose to add 52 additional units and a dosing chamber to
alternate between the infiltrator beds as shown on the site drawing.
The infiltrator unit will be covered by a minimum of 24" of cover over the entire bed.
minimum septic tank for a residence this size as required by the state of Colorado in
Garfield county is 2000 gallons
Minimum horizontal distances between septic system components:
absorption bed to any ditch or water course : 50 ft
absorption bed to any potable water supply or supply line: 25 ft
absorption bed to any property lines: 10 ft
absorption bed to any septic tank: 6 ft
absorption bed to any residence: 20 ft
absorption bed to any spring or well: 100 ft
P.(Q Box 1908 / /^`\ (970) 945 -5700
Cooper Ave. (970) 945 -1253 Fax
Glenwood Springs,
CO 81602 ZANCANELLA ANn /ASSOCIATES
ENGINEERING CONSULTANTS
November 28, 1995
Don Owen
Garfield County
Building and Sanitation Department
109 8th Street Suite 303
Glenwood Springs, CO 81601
Dear Don:
At the request of the owners, Zancanella and Associates, Inc has completed the
application for an individual sewage disposal system and has preformed the required
percolation test. The perk test was completed on November 15, 1995, the perk rates
ranged from 19 to 28 minutes per inch. For design purposes we used 40 minutes per inch
for this system. The existing waster water system consists of 44 infiltrators. We propose
to add an additional 52 units in the spring of 1996. While the lodge and hose includes 7
bedrooms, the anticipated loading of the lodge for this winter is minimal. Therefore we
propose to preform the construction phase of this system when frozen ground conditions
are not a problem.
If you have any questions please call our office at (970) 945 -5700
Very truly yours,
Zancanella and Associates, Inc
J
Terri L. Lance
Geologist
cc: Barbara Sheffer
Gary Beach
TLL \95225
INDIVIDUAL SEWAGE DISPOSAL SYSTEM APPLICATION
NER Puw,,y ?A w LLL
DRESS Ill E. t4AYuE s. , wyp� Iou U4r , 111 We . PHONE (z 19) 42S- 47o4-
NTRACTOR i3cH co,a- nta ,:.5 •
DRESS 174- Fz -ri,x Ss„ Rv GA so&>dLE_ co abz3 PHONE (no) 963 -&,3»9
RMIT REQUEST FOR Qptl NEW INSTALLATION ( ) ALTERATION ( ) REPAIR
ach separate sheets or report showing entire area with respect to surrounding areas, topography of area, habitable
(ding, location of potable water wells, soil percolation test holes, soil profiles in test holes (See page 4).
CATION OF PROPOSED FACILITY:
ar what City of Town RIFLE Co SSIbso Size of Lot 35
;al Description or Address 1793 to - 1 Kr 219 , co s16so
\STES TYPE: (k) DWELLING ( ) TRANSIENT USE
( ) COMMERCIAL OR INDUSTRIAL ( ) NON - DOMESTIC WASTES
( ) OTHER - DESCRIBE
JILDING OR SERVICE TYPE: .01 f -1ogse 7,.,41 Re a
,mber of Bedrooms 1 (m tn. Z) Number of Persons 4-
?Q Garbage Grinder ( ) Automatic Washer ( ) Dishwasher
1URCE AND TYPE OF WATER SUPPLY: pQ WELL ( ) SPRING ( ) STREAM OR CREEI
supplied by Community Water, give name of supplier:
STANCE TO NEAREST COMMUNITY SEWER SYSTEM:
as an effort made to connect to the Community System?
site plan is required to be submitted that indicates the following MINIMUM distances:
:ach Field to Well: 100 feet
:ptic Tank to Well: 50 feet
!ach Field to Irrigation Ditches, Stream or Water Course: 50 feet
:ptic System to Property Lines: 10 feet
OUR INDIVIDUAL SEWAGE DISPOSAL SYSTEM PERMIT WILL NOT BE ISSUED WITHOU
SITE PLAN.
ROUND CONDITIONS:
epth to first Ground Water Table
:rcent Ground Slope
2
• PE OF INDIVIDUAL SEWAGE DISPOSAL SYSTEM PROPOSED:
SEPTIC TANK ( ) AERATION PLANT ( ) VAULT
VAULT PRIVY ( ) COMPOSTING TOILET ( ) RECYCLING, POTABLE USE
) PIT PRIVY ( ) INCINERATION TOILET ( ) RECYCLING, OTHER USE
CHEMICAL TOILET ( ) OTHER - DESCRIBE
TAL DISPOSAL BY:
ABSORPTION TRENCH, BED OR PIT ( ) EVAPOTRANSPIRATION
UNDERGROUND DISPERSAL ( ) SAND FILTER
ABOVE GROUND DISPERSAL ( ) WASTEWATER POND
OTHER - DESCRIBE
LL EFFLUENT BE DISCHARGED DIRECTLY INTO WATERS OF THE STATE?
RCOLATION TEST RESULTS: (To be completed by Registered Professional Engineer, if the Engineer does th'
tolation Test)
Minutes per inch in hole No. 1 Minutes per inch in hole NO. 3
Minutes per inch in hole No. 2 Minutes per inch in hole NO.
me, address and telephone of RPE who made soil absorption tests: 944s -z8aoi
TNorNPSot-) INC- 7y C1 NT6¢. ■RANJc C CO 8ibol
me, address and telephone of RPE responsible for design of the system: 704 -
o ?(z.% , , . - _ - Su 2- MAI ST year tl A CA ro r,lvz - S
)plicant acknowledges that the completeness of the application is conditional upon such further mandatory an
Jitional tests and reports as may be required by the local health department to be made and furnished by the applicar
by the local health department for purposed of the evaluation of the application; and the issuance of the permit i
bject to such terms and conditions as deemed necessary to insure compliance with rules and regulations mad(
brmation and reports submitted herewith and required to be submitted by the applicant are or will be represented t
true and correct to the best of my knowledge and belief and are designed to be relied on by the local department (
alth in evaluating the same for purposes of issuing the permit applied for herein. I further understand that ar
sification or misrepresentation may result in the denial of the application or revocation of any permit granted base
)on said application and in legal action for perjury as provided by law.
gned 1,t Date //Z9/o/
L1 iA„n �x HcK1o. -]
EASE DRAW AN ACCURATE MAP TO YOUR PROPERTY!!
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• PERCOLATION TESTS
' e successful operation of your septic system depends on the rate the soil in which your leach field will be installe
I accept water. THIS IS CRITICAL, The rate of absorption is called the percolation rate and it determines the siz
the leach field needed for a particular flow of sewage and in some cases even determines the feasibility of th
tallation of a septic tank and leach field system. In some cases, the profile hole may be waived but only by specifi
)roval of the Environmental Health Department. PERCOLATION TEST MUST BE DONE AT THE GROUND
WM WHERE ABSORPTION WILL TAKE PLACE. STANDARD SEEPAGE BEDS (LEACH FIELDS) AR
TALLED THREE FEET DEEP SO THE PERCOLATION HOLES ARE D G FOUR FEET DEEP AT LE •
FEET APART, IN A TRIANGLE SHAPE, THE PERCOLATION TEST IS DONE IN THE BOTTOM ONE (3
)OT OF THE HOLE:
LS1I1nLE
IIAca Wn_ T
T � I
I (
• 3'
1 - - - D - 8 „ -i.vi
U I — —
- � WA TER 2 ,
post hole digger, auger or back hoe can be used to dig the percolation test holes. If a back hoe is used, dig the bac
e hole three (3) feet deep, with a bite for steps, and put a test hole one (1) foot deep and 8 to 12 inches in diamet
the bottom. Installation of absorption areas (i.e. drywells) deeper than three (3) feet require the permission of t
wironmental Health Department.
duration with water will affect the percolation rate, and since the system will be expected to operate when the soil
turated with water, THE HOLES MUST BE FILLED WITH WATER AT LEAST EIGHT (8) HOURS BEFOF
HE TEST AND ALLOWED TO STAND. More water will be needed to perform the percolation test, so AT LEA:
NE (5) GALLONS OF WATER PER HOLE SHOULD BE ON HAND WHEN THE TEST IS PERFORMED.
N EIGHT (8) FOOT PROFILE HOLE IN THE LEACH FIELD AREA IS REQUIRED IN THE STATE (
OLORADO TO DETERMINE THE PROXIMITY OF GROUND WATER AND BEDROCK. (One soil profile he
tall be drilled or dug to provide observation of the soil profile of the area of the soil absorption system. The hole sh
prepared at least eight (8) feet deep. The hole may be terminated when groundwater or bedrock is encounter
he hole shall be prepared in such a way as to provide identification of the soil profile four (4) feet below the bott(
'the soil absorption system).
(FOR APPLICANT'S INFORMATION)
4
COLATION TESTS FOR DRY WELLS (SEEPACiF. PITS) ARE PERFORMED AT THE LEVET,
nip, BOTTOM OF THE PIT (TJSIJAT,i,Y 10 FEET)
CRO U,J L e vet_
/0 '
11i i Percolaf,oa /cs" for S4epnye�'I
U
'ou call for a percolation test or inspection and for some reason are not ready when the time comes,
ase call us before 5:00 p.m. at 945 -8212 or 625 -5571 to cancel the appointment.
ANK YOU FOR YOUR COOPERATION.
(FOR APPLICANT'S INFORMATION)
5
JNI)IVII)IJAI, SF,WAGF.DTSPOSAI, SYSTEMS
ire construction is started, the Inspector must be contacted for approval and detailed information concerning the
)osed disposal system. Higher standards than those which follow may b r auired in individual cases to assure
nment of the objective, Those objectives are to locate, construct and maintain individual sewage disposal
ems in such a manner that existing or contemplated water supplies will not become contaminated and so that
age will not overflow the ground surface and result in a nuisance or health hazard.
LIQUID CAPACITY OF TANK (GALLONS)
(Provides for use of garbage grinder, automatic clothes washers and other water using household
appliances).
Recommended Minimum
Number of Bedrooms Tank Capacity
2 or less 750 gallons
3 or less 1,000 gallons
4 1,250 gallons
For each additional bedroom, add 250 gallons
MINIMUM LEACHING AREA OF DISPOSAL FIELD ABSORPTION AREA REQUIREMENTS FOR
INDIVIDUAL RESIDENCES
colation Rate Required Absorption Percolation Rate Required Absorption
le required for Area, in sq. ft. (time required for Area, in sq. ft.
:er to fall one per bedroom water to fall one per bedroom
1, in minutes) (b) standard trench inch, in minutes) (b) standard trench
(c) seepage beds & (c) seepage beds &
(d) seepage pits (d) seepage pits
or less 10 228
15 279
30(e).. 395
45(e).. 483
60 (e), (f) 558
`(See Below)
ercolation rates taster than five (5) minutes per inch or slower than sixty (60) minutes per inch require
gineered system and/or Board of Health approval.
It is desirable to provide sufficient land area for entire new absorption system if needed in future.
In every case, sufficient land area should be provided for the number of bedrooms (minimum of 2) that can
reasonably be anticipated, including the unfinished space available for conversion as additional bedrooms.
6
sorption area is figured as trench - bottom area and includes a statistical allowance for vertical side wall area
Absorption area for seepage pits is figured as effective side wall area beneath the inlet.
Unsuitable for seepage pits if over thirty.
f) Unsuitable for absorption system if over sixty.
Felling on less than two acres, areas of high water tables, or areas with a percolation test rate faster than 1" in 5
Lutes must have alternative sewage facilities, i.e., central collection, holding tanks, individual treatment, etc.
:CEPTION: Absorption areas may be allowed with percolation rates faster than one (1) inch in five (5) minutes
wided the soil is a sandy texture and no water table problems are encountered.
Maximum length of drainage line: 100 linear feet
Minimum width of drainage trench: 18 inches
Minimum spacing between trenches or pipes: 6 feet
Maximum grade of drainage lines: As level as possible
Minimum depth rock under drain PVC: 6" under PVC, 2" over PVC
Minimum depth of cover over distribution lines: 12 inches
Maximum depth of cover over distribution lines: Variable
Minimum grade of house sewer: 1/8 to 1/4" per linear ft.
Minimum distance of sewage disposal system
from dwelling: 10 feet
. Minimum distance of septic tank from dwelling: 5 feet
. Minimum distance of leaching area to a well: 100 feet
. Minimum distance of septic tank to a well: 50 feet
Minimum distance of leaching area to a stream
or water course: 50 feet
. Minimum distance from septic tank and disposal
field to property lines: 10 feet for drywell
10 feet for leach field
. Minimum sewer pipe and distribution pipe: 4 inch diameter
:ptic construction should be of concrete, concrete block or of a material that will resist deterioration and which
n be made reasonable watertight.
:,ceptable drain field pipe materials include plastic, terra cotta or concrete. If the house sewerline is longer than 1
et between house and septic tank, a clean-out Y should be installed as near as practical to the house.
:ptic tanks should be inspected once a year and cleaned when necessary. Cleaning is recommended when space
:tween the scum accumulation and sludge residue on the tank bottom is less than eighteen (18) inches.
ie Department recommends pumping a septic tank once every four (4) years when a yearly inspection by the
vner is not practical.
7
•
TYPE OF SYSTEM TO BE CONSTRUCTED
•(1 1/2" 1021/2 ".Clean Gravel Required Unless Otherwise Approved)
mi' TOP
4" pr.Y fora Led n 0 0 a 10 oaa - o o ° o
0 o °— Gravel
icier_ 'pipe t ov „ veo 0 c s aD O _
'0111 1 n _ 1 0 p 0 C2 O A it o p p p o p p o 0 0 n :C 4" sal ill pipe oo °° D a °
from Lank op
0 . 00 q" solid pipe
e.
,� — A o ° ° o J c- °o tending it
o % o °o drywell 1'
o � �O i .
rti .. � ^ ^ - ^, ^ — ^ ..\\ D p O O 0 0 • •
• : I�� � *vs., q " h ay o `
p 0 Qt,1QCJQ Q C>0 0[D c� p Q V U .! °O Q po°te' �.••••• • straYl over
C]P t7 O o
�Dc> G. o ao0 0o0L) o p 0 oo aL! ° u n_..o� ° O a ° o � �•• .• � %
p 0 U 0 O O tp 0 d.> ,a •, t
co O o Q to t� ..D 0 o o 0 O o o C. k
6' 1 3' 1 Size determined from perc test results
I kx\/ SIUF V / IL,H\( _Backfll
c_OCNS -C `AEC' Ag'M : -479
I3 4),-,--,.° � 4 � �� 4 TC Or straw 2;,CXr;L EXCAVATION ARCUNO STRUCTURE 0.17-1 :CMPA
!� t t:J -,.( %i ii—_._-_
,
t-3 00 Co CA O oh t 4 " r p __ l �) �._0 ,01_ — t_I/i C.iUMEC 'ONE. TO 'CC Of =E7F• ^RAE , _E _:I C.0 .
1, a ° o co Q ; � PRECAST CONCRETE E DRY W
9 co o ° d o 0 a c!J 6" Gravel a. r's.
0o Odo o co cac>c c _
d 0 G cm °13 C 0 � 0 ]) ['.8 o 1S I
°co a U ift ) C ° under pipe
GQ C� il'L] i t ` SLOPE ?AC(FIL; A1vA`!
°
1 Seepage Bed 1 1
d
CONE SEC710N OR I ^A- `
FLAT Si. +e iCP MM I \
\ ( \4 6 \v . s, S' MIN. 1 I i ;
STANDARD RISC � . I �
ScCCICN(_)
\ 1 L�
1
� `— • I �W Nit: i
FE.4FOAATcC RISER :, c�.9iE I 4 Clean
szcncN(s) (a•,,,, W ? j graded rc
S._' VIN. • J ,/
1 to 21 ir.
• •%'....1. � y •, •.... �
extend 12
I _ _ stank to at
-• c�' cam c 2 ' above it
' • 1 : pipe
i UM. C MIN. •
I _ VIN. I .I
8
GARFIELD COUNTY
BUILDING AND SANITATION DEPARTMENT
109 8th Street, Suite 303
Glenwood Springs, CO 81601
(970) 945- 8212/(970) 285 -7972
PROCEDURE REQUIRED FOR COMPLIANCE WITH THE GARFIELD COUNTY SEWAGE DISPOSAL
REGULATIONS.
Step I: Application
A. Obtain a standard "Individual Sewage Disposal System" application from the Building and Plannin!
Department, 109 8th Street, Suite 303, Glenwood Springs, Colorado 81601, 970 - 945 -8212 or 285
7972.
B. Return completed application, map to property, site plan and diagram of site to the Building an
Planning Department (Pages 2 and 3) and building plans. INDIVIDUAL SEWAGE DISPOSA]
SYSTEM PERMITS WILL NOT BE ISSUED WITHOUT AN APPROVED BUILDING PERMIT
C. Make check or money order payable to "Garfield County Treasurer" (The cost for the permit fee an
percolation test is $150.00 or if a Registered Professional Engineer does the percolation test, the co:
is $50.00 permit fee). FEES ARE NOT REFUNDABLE.
D. Your Individual Sewage Disposal Permit will be issued along with your building permit provided n
prohibitive problems are encountered.
Step II: Percolation Tests -SEE DETAILED INSTRUCTIONS ON PAGE 6
A Prepare three (3) percolation holes 4 feet deep, 8 to 12 inches in diameter, and 20 feet apart in the arc
of the proposed leach field area (Instructions for post hole or back hoe holes are on page 4).
B. Fill percolation holes with water once for the required eight (8) hour soaking period.
C. Request percolation test by Sanitarian. (To avoid construction delay, we suggest arrangements f<
percolation test be made at least 24 hours prior to the end of the soaking period). Please have at lea
five (5) gallons of water for each hole available at the site for the percolation test.
!!!!IMPORTANT!!!! Please be advised that if the Sanitarian's initial field visit to your property reveals any unusu
difficulties such as high water table, excessive percolation rates, bedrock, etc., the services of
Colorado Registered Professional Engineer and/or Board of Health approval will be require(
Step III: Final Inspection
A. When all components are in place, connected and ready to cover, request a final inspection by tl
Sanitarian.
B. DO NOT backdill any part of the system prior to the inspection.
C. The initial fee covers the percolation test and one inspection before cover up. Any additional percolatic
tests will be charged at $100.00 each and additional inspections will be charged at $42.00 each.
D. Upon final approval, carefully cover the entire system.
1
1 l
I Ike
December 4, 2000
B & H General Contractors
174 Flying Fish Road
Carbondale, CO 81623
Attention: Mr. Steve Eichhorst cltUtt V tV
Subject: Percolation Testing L V
Puma Paw Ranch DEC 7 2000
County Road 219 {�.�
Garfield County, Colorado B &
Job No. GS -3170
We performed a geotechnical investigation for the residence, bunkhouse and
barns at the site under our Job No. GS -3048 (report dated July 5, 2000). As
requested, we have performed percolation testing at the site. The approximate areas
of five proposed percolation fields are shown on Figure 1. Our investigation
included Areas 1 through 4. The location of Area 5 was not determined at the time
of our investigation and percolation testing was not performed.
Profile and percolation borings and pits were drilled and excavated by the
client at locations determined by the client. The approximate locations of the borings
and pits are shown on Figures 2 through 5. Graphic logs of the soils and bedrock
encountered in the borings and pits are shown on Figure 6. Sandstone bedrock was
encountered just below the ground surface in Profile 1 (Figure 2). We recommended
the Area 1 percolation field be moved away from the adjacent sandstone bedrock
outcrops. The client excavated pits at the alternate location northwest of Area 1.
We performed percolation testing in the borings and pits between November
6 and 16, 2000. Test results are presented on Figures 7 through 10. Our percolation
test results indicate the following design percolation rates are appropriate:
Area Design Percolation
Rate (min /inch)
1 <5
2 5to10
3 15to20
4 30 to 40
CTL;THOMPSON, INC.
CONSULTING ENGINEERS
_34 CENTER DRIVE ■ GLENWOOD SPRINGS, COLORADO 81601 ■ (9701 9452809
•
We recommend that the percolation fields be designed by an engineer
qualified in septic field design. We appreciate the opportunity to work with you on
this project. If you have questions, please call.
Very Truly Yours
CTL /THOMPSON, INC.
Gr.
:
s D. Kellogg I '
aff Geotechnical Engineer
Reviews y _
/
/Jo / > hng, P.E.
c • Manager
DK:JM:Cd 1 , /�'
5 copies sent .T...g-__..t. .. r .'
6 & H GENERAL CONTRACTORS
PUMA PAW RANCH 2
JOB NO. GS -3170
PUMA PAW RANCH
COUNTY ROAD 219
GARFIELD COUNTY, COLORADO
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Job No. GS -3170
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Fig. 1
•.PUMA PAW RANCH
COUNTY ROAD 219
GARFIELD COUNTY, COLORADO
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LEGEND:
P -1 Scale: 1"=40'
• Indicates location
of pit
1
i AREA 1 P rofile ,
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-41 ----1111.1fr---- ----- 4-z--11111111IIIIIIIIIIII
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Profile � • /
P -1 ■ rI
APPROXIMATE LOCATIONS OF PITS AND BORINGS
Job No. GS -3170 Flg. 2
.. PUMA PAW RANCH
COUNTY ROAD 219
GARFIELD COUNTY, COLORADO
LEGEND:
P -3
• Indicates location
of boring
Profile 2
• Indicates location --oh-... * G
of pit
AREA 2 Scale: 1"=40'
P -3 P -4
/ • . •P -5
Profile 2
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6 4 Wir
\ilit N
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APPROXIMATE LOCATIONS OF PITS AND BORINGS
Job No. GS -3170 Fig. 3
' PUMA PAW RANCH
COUNTY ROAD 219
GARFIELD COUNTY, COLORADO
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LEGEND: P -8
tr ial
P -6
• Indicates location —mot * G
of boring
Profile 3 Scale: 1"=40'
• Indicates location
of pit
APPROXIMATE LOCATIONS OF PITS AND BORINGS
Job No. GS -3170 Fig. 4
PUMA PAW RANCH
COUNTY ROAD 219
GARFIELD COUNTY, COLORADO
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Scale: 1"=40' \ AREA 4
a
kk. — — —
itte
P-11 • �P -10
LEGEND:
P -9
• Indicates location
of boring
Profile 4
Indicates location
of
of pit
APPROXIMATE LOCATIONS OF PITS AND BORINGS
Job No. GS -3170 Fig. 5
Profile 1 Profile 1A P -1 P -2
— 0 _ --,02 r
r 4 s
m / • o —
-10
Profile 3 P -6 P -7 P-8
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LEGEND:
® Grav -
Clayey sand "topsoil ", medium mole
dense, moist, brown. IZI
® Pea gravel ® Sand
hard
d Sand, silty to clayey, occasional
gravel, loose to dense, moist, rust,
brown. (SM, SC —SM)
SUM' 'Y LOG`
Job No. GS -3170
Profile 2 r —S i - -
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NOTES:
, silty, dense to very dense, 1. Profile and percolation borings and
rust, brown. (GM) pits were drilled and excavated by
the client.
tone bedrock, medium hard to
moist, rust.
2. Locations of exploratory borings and
pits are approximate.
OF EXPLORATORY BORINGS AND PITS
Fig. 6
SATURATION AND PREPARATION PERCOLATION TEST
DATE: 11/13/00 DATE: 11/15/00
TIME AT START OF SATURATION: 4:30 pm WATER IN BORING AFTER 24 HOURS
t _ YE X NO
PERCOLATION TEST RESULTS
DEPTH TO WATER
HOLE DEPTH TIME AT TIME CHANGE PERCOLA-
NUMBER (INCHES) START OF INTERVAL IN WATER TION RATE
INTERVAL (MINUTES) START OF END OF DEPTH (MIN /INCH)
INTERVAL INTERVAL (INCHES)
(INCHES) (INCHES)
P -1 96 10:00 30 12.0 20.0 8.0 4
10:30 30 11.0 20.0 9.0 a 3
11:00 30 12.0 19.5 7.5 4
11:30 30 13.25 24.0 10.75 3
12:00 30 11.25 19.25 8.0 4
12:30 30 12.0 20.0 8.0 4
1:00 30 12.0 19.5 7.5 4
1:30 30 12.0 20.0 8.0 4
P -2 92 10:00 30 10.25 18.25 8.0 4
10:30 30 9.5 16.0 6.5 5
11:00 30 10.25 15.25 5.0 6
11:30 30 9.0 15.0 6.0 5
12:00 30 8.75 13.75 5.0 6
12:30 30 9.5 15.5 6.0 5
i 1:00 30 9.75 15.75 6.0 5
1:30 30 10.25 15.25 5.0 6
Job No. GS -3170 Fig. 7
SATURATION AND PREPARATION PERCOLATION TEST
DATE: 11113/00 DATE: 11/16/00
TIME AT START OF SATURATION: 4:30 pm WATER IN BORING AFTER 24 HOURS
_ YE X NO
PERCOLATION TEST RESULTS
DEPTH TO WATER
HOLE DEPTH TIME AT TIME CHANGE PERCOLA-
NUMBER (INCHES) START OF INTERVAL IN WATER TION RATE
INTERVAL (MINUTES) START OF END OF DEPTH (MIN /INCH)
INTERVAL INTERVAL (INCHES)
(INCHES) (INCHES)
P3 39 10:30 30 21.0 26.25 5.25 6
11:00 30 20.5 25.0 4.5 7
11:30 30 19.75 24.25 4.5 7
12:00 30 20.0 24.5 4.5 7
12:30 30 19.5 23.25 3.75 8
1:00 30 18.0 22.75 4.75 6
P4 36 10:30 30 17.0 21.25 4.25 7
11:00 30 17.0 20.75 3.75 8
11:30 30 16.5 20.0 3.5 9
12:00 30 15.25 19.75 4.5 7
12:30 30 15.5 18.75 3.25 9
1:00 30 14.5 18.75 4.25 7
P -5 44 10:30 30 26.0 31.5 5.5 5
11:00 30 26.0 30.75 4.75 6
11:30 30 25.25 30.0 4.75 6
12:00 30 24.75 29.75 5.0 6
12:30 30 24.5 28.75 4.25 7
1:00 30 23.75 28.75 5.0 6
Job No. GS -3170 Fig. 8
SATURATION AND PREPARATION PERCOLATION TEST
DATE: 11/06/00 DATE: 11/07/00
TIME AT START OF SATURATION: 11:00 am WATER IN BORING AFTER 24 HOURS
X YES (P -2) X NO (P -1 and P -3)
PERCOLATION TEST RESULTS
DEPTH TO WATER
HOLE DEPTH TIME AT TIME CHANGE PERCOLA-
NUMBER (INCHES) START OF INTERVAL IN WATER TION RATE
INTERVAL (MINUTES) START OF END OF DEPTH (MIN /INCH)
INTERVAL INTERVAL (INCHES)
(INCHES) (INCHES)
P -6 35 8:15 60 20.25 26.75 6.5 9
9:15 60 26.75 30.0 3.25 18
10:30 60 *17.0 23.75 6.75 9
11:30 60 23.75 27.5 3.75 16
12:30 30 27.5 29.5 2.0 15
P -7 39 8:15 60 23.50 31.5 8.0 8
9:15 60 31.50 34.5 3.0 20
10:30 60 *22.25 29.5 7.25 8
11:30 60 29.5 32.75 3.25 18
12:30 30 32.75 34.25 1.5 20
P4 37 8:15 60 18.75 28.0 9.25 7
9:15 60 28.0 31.0 3.0 20
10:30 60 *18.75 25.75 7.0 9
11:30 60 25.75 29.5 3.75 16
12:30 30 29.5 31.5 2.0 15
I
1
* indicates water added to holes
Job No. GS -3170 Fig. 9
SATURATION AND PREPARATION PERCOLATION TEST
DATE: 11/06/00 DATE: 11/07/00
TIME AT START OF SATURATION: 11:00 am WATER IN BORING AFTER 24 HOURS
__ YES X NO
PERCOLATION TEST RESULTS
DEPTH TO WATER
HOLE DEPTH TIME AT TIME CHANGE PERCOLA-
NUMBER (INCHES) START OF INTERVAL IN WATER TION RATE
INTERVAL (MINUTES) START OF END OF DEPTH (MIN /INCH)
INTERVAL INTERVAL (INCHES)
(INCHES) (INCHES)
p -9 35.5 8:45 60 18.0 24.0 6.0 10
9:45 60 24.0 27.5 3.5 17
10:45 60 27.5 29.5 2.0 30
11:45 60 29.5 31.5 2.0 30
12:45 30 31.5 32.5 1.0 30
P -10 38 8:45 60 22.5 27.75 5.25 11
9:45 60 27.75 30.5 2.75 22
10:45 60 30.5 32.0 1.5 40 ..
11:45 60 32.0 33.5 1.5 40
P -11 32 8:45 60 17.0 22.0 5.0 12
9:45 60 22.0 25.0 3.0 20
10:45 60 25.0 26.75 1.75 34
11:45 60 26.75 28.25 1.5 40
12:45 30 28.25 29.0 0.75 40
P -12 32 8:45 60 16.0 21.0 5.0 12
9:45 60 21.0 24.0 3.0 20
10:45 60 24.0 26.0 2.0 30
11:45 60 26.0 27.5 1.5 40
12:45 30 27.5 28.25 0.75 40
Job No. GS - 3170 Fig. 10
•
November 29, 2000
Steve Eichhorst
B & H Contractors, Inc.
Puma Paw Ranch
174 Flying Fish Road
Carbondale, CO 81623
RE: Puma Paw Ranch — Proposed ISDS Systems, West Rifle Creek, Garfield County, CO
SE Job No. 20110.01
Dear Steve:
Pursuant to your request, attached herewith is a letter /report presenting our findings in regard to the
feasibility and design for Individual Sewage Disposal Systems (ISDS) at the above referenced Site. This
design is based on our evaluation of the site conditions with information provided by others for use in
supporting your application to Garfield County. Our recommendations are in accordance with Garfield
County and the State of Colorado ISDS Regulations. We have reviewed the information forwarded to us,
conducted a site visit, formulated ISDS designs and created a site plan with construction details as part of
our scope of work. Supporting documentation including percolation test results and the geotechical report
are attached.
Conclusions:
The site contains 4 separate areas in which individual systems need to be installed to serve the needs of the
re- development on the ranch. Based on our findings we believe that the design and installation of
approved ISDS systems is feasible in accordance with the Regulations of Garfield County and the State of
Colorado. The following table summarizes the components of the four individual systems.
Area ISDS Locations Number Use tank Absorption
Bedrooms Volume Min. area
gal SF
1 BARN STUDIO 1 (min. 2) 1000 225
2 REMOTE COTTAGE 1 (min. 2) 1000 225
3 BUNK HOUSE 2 1000 300
4 MAIN BUILDING 5 1500 854
502 Main Street • Suite A3 • Carbondale, CO 81623 • (970) 704 -0311 • Fax
(970) 704-0313
SOPRS ENGINEERING • LLC civil consultants
Steve Eichhorst
SE Job No. 20110.01
November 29, 2000
Page 2
We recommend that new, dual compartment, concrete septic tanks be installed that will discharge effluent
to soil absorption trench systems. The soil absorption systems will consist of graveless absorption
chambers installed in 3' wide by 2' deep trenches. The effluent will discharge to absorption chambers
installed in natural soils. We have proposed the addition of an effluent filter in the secondary camber of
each septic tank. The filtered effluent will discharge to single trench systems or to flow splitter basins via a
4" PVC pipe installed with a minimum 2% slope. The effluent will be equally distributed to multiple
trench systems from flow splitter basins through individual discharge pipes to each trench in each system.
The individual systems will meet all required setbacks and will be installed within the general location
indicated on the plan. Our design calculations are outlined below and delineated on the attached plans and
details.
Site Location:
The subject site is located adjacent to Middle Rifle Creek approximately 1.5 miles North of County Road
245 at the confluence with West Rifle Creek in Garfield County, Colorado. The site is situated in Section
25, T 4 S, R 93 W of the 6` P.M. The Site comprises approximately 300+ acres on moderately sloped
ranchlands surrounded by mountainous areas with Pinyon, Juniper, sagebrush, and oakbrush landscape.
The main developed portion of the site (Ranch Compound) comprises approximately 20 acres, which
contains the redevelopment projects, existing ranch buildings, livestock facilities and other ranch
improvements. The site is a working ranch which agricultural fields, residential buildings,
utility /agricultural buildings and associated ranch type improvements.
Existing Site Conditions:
Approximately 80% of the 20 -acre ranch compound portion of the site is located on relatively flat to
moderately sloping agricultural lands along Middle Rifle Creek. The majority of the site slopes to the West
toward Middle Rifle Creek. The existing ground surfaces in the proposed re- development areas are on
relatively flat ground with approximate slopes between 2% and 10 %. The site is covered with lawns,
pasture grasses, sagebrush, Scrub Oak, Pinion trees and shrubs. Several driveways, water storage tank and
buried utility services have been installed on the site. Domestic water is supplied by existing wells, on the
property near the southeast boundary line. The well is located approximately 300 feet down gradient and
500 feet horizontally from the building site.
Proposed Site Conditions:
Several redevelopment projects are underway at the ranch including replacement of the bunkhouse,
relocation of an existing cabin and construction of a new main ranch house and new barn/studio. It is our
understanding that you intend to demolish two existing bunkhouses, vehicle barn, storage shed and pool
house. The proposed improvements will include new ISDS systems separated by adequate distances to
preclude any hydraulic influence between systems.
The proposed individual ISDS systems are separated in excess of a minimum 100 feet separation distance.
The minimum distance between absorption fields in Area 3 and Area 4 is 220 feet. The minimum distance
between absorption fields in Area 1 and Area 4 is 331 feet. The minimum distance between absorption
Steve Eichhorst
SE Job No. 20110.01
November 29. 2000
Page 3
fields in Area 2 and Area is 616 feet. The 4 proposed systems are hydrological separate and distributed
over a total area of 16 acres. No overlapping influence between systems is expected to occur throughout
the life of the systems. The site contains adequate area for replacement and/or upgraded systems in the far
future.
Subsurface Conditions:
Attached herewith are the results of the subsurface investigation and percolation tests conducted on
November 7,15 and 16 2000 by CTL Thompson, Inc. (CTL). The CTL report is dated December 4, 2000,
Job Number GS -3170. The subsoil encountered at the site consists of approximately 6 inches of clayey
sand topsoil overlying silty gravels in Area 1 and 2 and silty to clayey sand in areas 3 and 4. Groundwater
was not encountered to a depth of 10 feet in the test profile pits in each area.
Percolation testing, in the four individual preferred absorption areas, utilized four test holes yielded varying
absorption rates. The fastest measured rate was 5 minutes per inch and the slowest measured rate was 40
minutes per inch. The average test percolation rate at each area is used to design the individual absorption
areas.
Additional evaluation of on site soils will be performed in Area 1 and Area 2 at the time of construction to
determine the need for possible soil replacement in the final staked out location of the trenches. This is
necessary to insure that the effluent will be evenly distributed in the trenches and percolate into the suitable
filter media at an acceptable loading rate. We expect that percolation rates at 2 to 3 feet below the surface,
in these two areas, will be slower that the rates reported in percolation test holes 1 through 5.
Design Criteria:
Proposed residence is a 1- bedroom house. Garfield County regulations require a minimum design flow
based on 2 bedrooms. Therefore, we propose the minimum installation of a system based on two
bedrooms for area 1 and 2. This recommendation is practical with respect to future needs of the current
owners and the needs of potential new owners of the home site if the property is sold in the future. The
system for Area 3 (bunkhouse) is based on a design flow rate of 50 gpd for up to 8 persons housed in 2
bedrooms. The system for Area 4 (Main ranch house) is based on a design flow rate based on 5 bedrooms.
The design flows for Areas 1,2 and 4 are calculated as follows:
Residence unit - 2 bedrooms @ 2 person /bedroom = 4 person
From the Garfield County I. S. D. S. Regulation;
Max. Design flow (Qd) = # of people x 1.5(avg. flow) gal /person/day.
Gallons per day for Areas 1,2 and 4 = 75 gal /person/day
• Steve Eichhorst
SE Job No. 20110.01
November 29, 2000
Page 4
The design flows for Areas 3 are calculated as follows:
Residence unit - 2 bedrooms @ 4 person /bedroom = 8 person
From the Garfield County I. S. D. S. Regulation;
Max. Design flow (Qd) = # of people x 1.5(avg. flow) gal /person/day.
Gallons per day for Areas 3 = 50 gal /person/day
See the table below for calculated design flows for each ISDS system.
PUMA PAW RANCH
AREA ISDS QUANTITIES Number People/ /capita Avg. Rate Peaking Design
Bedrooms Bedroom Usage QA Factor QD
# gpd /cap gpd # gpd
1 BARN STUDIO 1 (min. 2) 4 75 300 1.5 450
2 REMOTE COTTAGE 1 (min. 2) 4 75 300 1.5 450
3 BUNK HOUSE 2 8 50 400 1.5 600
4 MAIN BUILDING 5 10 75 750 1.5 1125
Septic Tank Design:
Residence
V = Qd x Dt = gallons
Qd = Design flow (gal /day)
Volume (V) of tank (gallons)
Dt = (30 hour retention time) = 1.25 day
V = Qd * 1.25 = Tank volume
Use minimum 1000- gallon concrete septic tank
PUMA PAW RANCH Minimum Septic Tank Size
Area ISDS Locations Design min. Time min. Tank Use tank
QD Detention Volume Volume
gpd hr gal gal
1 BARN STUDIO 450 1.25 563 1000*
2 REMOTE COTTAGE 450 1.25 563 1000*
3 BUNK HOUSE 600 1.25 750 1000
4 MAIN BUILDING 1125 1.25 1406 1500
* A 750- gallon concrete septic tank is acceptable if available.
Steve Eichhorst
•
SE Job No. 201 10.01
November 29, 2000
Page 5
Percolation Test Design Criteria:
Attached with this report are the percolation test results from a series of test dated December 4, 2000. The
results of percolation testing in Areas 1 and 2 indicated the average percolation rate of 4.7 and 7 minutes
per inch respectively. These tests were performed at depths below the design depth at the bottom of the
trenches. We expect that percolation rates at 2 to 3 feet below the surface, in these two areas, will be
slower that the rates reported in percolation test holes 1 through 5. However it is noted that the actual size
of the trenches is determined by a minimum desired loading rate of 1.20 gal /SF /day. Additional evaluation
will be performed at these areas to determine if select filter media needs to be placed to insure that the
desired loading rate and adequate distribution is achieved. The engineer will make recommendations
regarding final design modifications based on additional field evaluations. The absorption trenches in all
the separate areas are sized by using the standard absorption area equation and a long -term acceptance rate,
whichever is greater. A soil absorption trench disposal system with gravity distribution and effluent filter
is recommended for each ISDS system on the site.
Absorption Field System Design:
The systems are designed to treat and dispose of effluent in the natural ground utilizing detention with
filtration and gravity distribution to absorption trenches. The proposed habitable living units will
incorporate all water saving fixtures to ensure the conservation of water resources from the well. The
finish floor elevation of the buildings will be set to accommodate gravity discharge of effluent from the
buildings through the tank to the absorption trenches. The systems that have multiple trenches will also
incorporate a flow distribution system that incorporates a flow splitter basin (distribution box) for equal
distribution of the effluent between the individual absorption trenches.
The design calls for absorption trench chambers to increase storage and absorption area thus allowing a
reduction in overall area of 40 %. Effluent filters shall be installed on the outlet in the secondary chamber
of each septic tank.
The average percolation rates in the proposed absorption areas are listed in the following table and reported
in minutes per inch.
Based upon the average percolation test rate, the standard absorption area equation yields:
A (SF) = (Q *(t) 1 ): where A = Area; Q = flow (gal /day)
5 t = time in minutes per inch
Utilizing gravelless absorption chambers the area is reduced by 40 %.
A(reduce) = A x 0.60 = design trench area in square feet.
Thus: A(reduce) (SF) = (Qd x (t) 1 ) x 0.60
5
This equation will give a recommended minimum absorption area:
See Table for calculated results in each area.
Steve Eichiiorst
• SE Job No. 20110.01
November 29, 2000
Page 6
However design is based on the standard absorption area equation or a long -term acceptance rate,
whichever is greater.
Therefore: Calculate Area utilizing the Long Term Acceptance Rate (LTAR) of 1.20 gallons per
square foot per day:
A = Qd / LTAR = Qd gal /day = See table
1.20 gal /SF /day
Apply gravelless Chamber reduction of 40 %.
A(reduce) = A x (0.60) = See table
Use 15.5 SF / chamber to determine number of chambers per absorption area.
Absorption Area Calculations Absorption Trench Layout
Area ISDS Locations Design Average Absorption Minimum Absorption Use 40% No. of No. of Chamber:
No. QD Percrate Field Area Load Rate Min. area Larger Area Reduction Chambers Trenches Trench
gpd minfinch sf gal /sf /day sf sf sf # # #
1 Studio 450 4.7 195 1.2 375 375 225 15 1 15
2 Cottage 450 7 238 1.2 375 375 225 15 1 15
3 Bunk House 600 14 449 1.2 500 500 300 19 2 10
4 Main House 1125 40 1423 1.2 938 1423 854 55 4 14
Use the above layouts or modify to ensure minimum trench areas with equal distribution.
The minimum excavation to accommodate the chambers would be a 3' wide by 2 -3' deep trench. An
individual chamber unit is approximately 6.25 feet long.
The engineer, prior to excavation shall approve final layout and design of the proposed absorption trenches.
This approval is necessary to insure that adequate slopes for gravity distribution are achieved and that soil
conditions are optimal for design loading rates and distribution.
Steve Eichhorst
SE .Job No. 20110.01
November 29, 2000
Page 7
Effluent Distribution System:
A gravity distribution system will be utilized to transport effluent from the septic tanks through the length
of the absorption chambers. An effluent filter will be installed in the secondary compartment of the septic
tanks to reduce the biological loading to the absorption trenches and extend the life of the treatment media
in the trenches. A 4" transport line will discharge effluent to the single trench or, in multiple trench
systems, to a flow splitter basin installed up- gradient and adjacent to the trenches. The 4" PVC transport
lines will be installed with a minimum 2% slope. In multiple trench systems, the effluent will be equally
distributed from the flow splitter basin through individual discharge pipes to each trench in the system.
The discharge pipes will incorporate perforated risers in the flow splitter basin to insure equal distribution
into each discharge pipe. The discharge pipes will connect to the head of each chamber row. A splash
plate shall be installed on the trench bottom below each trench inlet to prevent scouring. Due to the higher
design flow rate in area 4 (Main ranch house) the addition of distribution laterals is recommended. Each
row of chambers in area 4 will have a perforated distribution lateral that runs the entire length of the trench
and installed at the top of the chambers. The perforations in the pipe will be oriented to discharge the
effluent downward.
General Notes:
1) All materials and installation practices shall conform to the State of Colorado and Garfield County
Individual Sewage Disposal Regulations.
2) All sewer lines and distribution lines in the system shall be Schedule 40 or SDR -35 PVC unless
specified otherwise on the plans.
3) Add a two -way clean out on the service line from the proposed building to the septic tank in each
individual absorption system.
4) The system shall be plumbed to distribute effluent into the trenches with equal distribution.
5) The systems that have multiple trenches shall incorporate a flow distribution system that incorporates a
flow splitter basin (distribution box) for equal distribution of the effluent between the individual
absorption trenches.
6) The contractor shall ensure that the septic tank and sewer lines are watertight.
7) The absorption trench areas must be protected to prevent damage from vehicular or livestock traffic.
8) The chambers shall be installed level in each trench. Cobbles or rocks are to be removed from the
trench if encountered.
9) The chambers may be backfilled with native soil free of rocks.
10) A final cover of soil suitable for vegetation, a minimum 12" deep, shall be placed from the top of the
chambers to the finished surface grade.
11) The trench finished surfaces must be crowned to direct surface drainage away from the trench to
minimize surface infiltration.
12) The absorption trenches must be sodded or covered with vegetative ground cover.
13) A vertical 4" inspection port shall be installed in the pre- molded cut out on the mid -point of the
terminal end chamber of each trench.
14) Gravelless chambers shall be installed level according to the manufacturer recommendations.
Steve Eichhorst
SE Job No. 20110.01
November 29, 2000
Page 8
15) An approved effluent filter shall be installed on the outlet in the secondary chamber of each septic tank.
16) The effluent transport lines from the building to the tank and tank to the absorption trenches shall be
installed with a minimum 2% slope.
17) The engineer will determine recommendations regarding final design modifications based on additional
field evaluations.
Our design and recommendations are based upon data supplied to us by others. If subsurface or site
conditions are found to be different from those presented in this report, we should be notified to evaluate
the effect it may have on the proposed ISDS. If the County Environmental Health Department requests
changes or modifications to this design, we should be contacted to evaluate the effect on the ISDS.
If you have any question or need any additional information, please call.
Sincerely,
SOPRIS ENGINEERING, LLC
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Paul E. Rutledge
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June 20, 2001
Steve Eichhorst
B & H Contractors, Inc.
Puma Paw Ranch RECEIVED JUN 2 6 2001
174 Flying Fish Road
Carbondale, CO 81623
RE: ISDS As -Built Documentation for Puma Paw Ranch —ISDS Systems Area 1 & 5, West Rifle
Creek, Garfield County, CO
SE Job No. 20110.01
Dear Steve:
Pursuant to your request, this letter provides documentation that the new ISDS systems recently installed is in
general compliance with the permitted designs. Two of the five proposed systems are now complete. The Barn
Studio (Area 1) was completed last fall and the existing cottage (Area 5) was completed this spring. Both dwellings
include a single bedroom with an ISDS installed to serve the minimum 2- bedroom design requirement. Sopris
Engineering has performed visits to inspect and document the as built conditions of the constructed systems. We
have coordinated our efforts with the contractor that built the systems. The as built conditions and installation of the
new ISDS components is in compliance with the permitted design specifications for the two individual systems.
The Barn Studio (Area 1) was installed in accordance with Garfield County Regulations; the design presented in the
Sopris Engineering Report and the design drawings, dated November 29, 2000. A 1000 gallon dual compartment
septic tank was installed with 4" tee baffles and an effluent filter. The absorption field was modified by constructing
2 trenches from the single trench delineated on the site plan. An inspection port was installed on the end of the two
44 foot long trenches installed. The trenches were installed level utilizing specified materials installed according to
design. The minimum setback distances have been maintained.
The Existing Cottage (Area 5) was installed in accordance with Garfield County Regulations; the design presented
in the Sopris Engineering Report and the design drawings, dated March 20, 2001. A 1000 gallon dual compartment
septic tank was installed with 4" tee baffles and an effluent filter. The absorption constructed with 2 trenches as
delineated on the site plan. An inspection port was installed on the end of the two 44 foot long trenches installed.
The trenches were installed level utilizing specified materials installed according to design. The minimum setback
distances have been maintained.
If you have any questions or need additional information please give me a call.
Sincer Uuuuutgy
4.
LLC
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Cc: Garfield County Building Department
1 502 Main Street • Suite A3 • Carbondale, CO 81623 • (970) 704 -0311 • Fax (970) 704 -0313
SOPRIS ENGINEERING • LLC civil consultants