HomeMy WebLinkAboutpitkin.eh.264514410001 (1998)As 1/Pitkin Environmental Health Depart nt
Permit for an Individual Sewage Disposal System
130 S. Galena St. Aspen, Colorado 81611
Phone 970-920-5070 / FAX 970-920-5197
Permit # �, $ O / 3 Parcel ID # c;L (e Y 5 — / Ll Lj / U — o o /
Type of permit E U,. — "Cc,es-r i1DaLs eri A--r<)c t 1 cg re-e-t'Alt;�ek-
Name of Owner N" j E_4- -_� A, l A &I
Street Address O O '7 E-1 O P i's N 2I) .
Property legal description _0 -T /y Gt1 /.Lb
Size of lot Total square footage of the house A Y q74 g
Water source I"(? U,'tq1,,2 SjfS r f/'%
# of bedrooms in house 3_ # of offices, lofts & similar sized rooms in house
Caretaker unit / Total square footage of the caretaker unit
# of bedrooms in caretaker unit _� # of offices, lofts & similar sized rooms in caretaker unit
Designed for what # bedrooms
Permit information
Designed by t a pc
Mailing Address 9 25" A 5 T / 7z A Ve
Perc rate Profile hole depth Depth to groundwater or bedrock j-/0>
Septic tank capacity / 7 51D Absorption area / 9 'Ya
Comments
Permit approved by: .&�Date: L y
a';�C'<i
Plans and specifications of the proposed individual sewage disposal system have been reviewed and are considered
satisfactory. Permission is hereby granted to the owner or the agent to perform the work indicated in accordance with the Pitkin
County ISDS Regulation in effect at the time of issue. This permit becomes invalid 6 months from the date that the permit was
issued unless system construction has commenced or an extension has been approved in writing by the Department.
As -built drawings must be included with this permit before the final approval will be issued.
Installer:
Final inspection approval: Date: 3d �f j ✓ �
/t-le.�.-moo
JACK WILKIE BUILDER ID:970-927-4712 APR 27'98 12:
JR
aGPeWF;MN ENVIRONMENTAL ��sE
APPLJOA110N ROA INDIVIDUALwAGil�o��SYSTEM
130 S. Galena St., Aspen 0010'adO 61611
i'hone 1?70=020.007WFax 970-02d-6099
Norse of
owner's Mtiiing AdQrasti
sq,&mnx4 Phonft: ( 113) ctaie:A�l ( - Home phone"
Name
55 No.003 P.02
poralon (al{ oommurogett°n "rding this permit will go through this
Company: - - ..._..r...�._ ...._._
Contract Milling Address SV _.r.
66_x_ . 4%1 _ A=o Call Phone IZ7-
unreal 11) 0 (avillialais rrarn assessors o,.—
at 210.5130 of at wWw.abpen,GOW111eesaorf)
Street sddraq of pmpsrtY Co
LeQW Cee ��1� ,�,. •elOck �,,, Fllkhg ....r.
,$ubdlvWon Ki
sire of lot: 0:F'TYR Of proposed sC►uoivro; • altm of ado, envelops:
Tatat gqusl�C'91 a ouse
M o! onto * of bedmms in house
ss loots b airmllsr sized room n sutra � ) " t ri
Caroteker unit. Attached (,I 'Casal area(ea. fi) Of w►rdtaiwr unit
.,r. _.�I��a l..qn awes ei,nrllp li9Q� r60fl56 Of c'ilretaker_unit —0—
L=
Perm?. its far. New Hama A"Wr duo to failure ( ) RIMO&V on ( ) 6merg9nay use ( )
Vifuter. Private well Q ) Spring ( ) StMaM1 ( ) Cornrnunity1ftblia Water dyMam '
It aotrmun a oft+: Nam*of system 5 I,JM a W I
The fee for fa 18tJ6 oppiieatic►n ►� $930 for n psimitt{wt taken 6 hays orlsso for ft danmrtrnent to approve. If appravel falces
tosser thMn 4 hC1M.lse, a rats of 1 65 per hour will be chargvd, The mwdmum fee is $Iota. The basic fit of $580 is due at the sine
of plication, The reminder, if any, will be due rr "U G%9Q3 t ?K at the •dine of ieeua�ros of the 18Q5 permit; eaaond, b+dore
fins! Goroval of the ADS pemiit-
Appliaatlol fOr an individual tsewd dlmposal aYatem Is hereby submitted, t hereby certify that the above information is true Inst
eoourcle &1d that I have provided true and aaaurate infor "atlon on iooatIOMV of gil mdlsting and proposed W4116, contour
bvllding9, pt�oporty lines. dltchen, alopee, waterlinee, epringe, duction or irrgelon Imes, denWrig water 6 tams, dr6In
intorvals,
ides, IrripatEcsn r3ttttem. {oktle, ouster Gaura6e, ahoems, f100dp1eine, dry grJl6ttps, and exhattng eaptjo gystsms. rmit dcas not � hereby flo �Iyof
that any euah feattlrsa not ShOWn nit at%Chsd &Ire pl county coos& No conctructio may be u dertt ken unUthS p�
any other p/rmlt required for construction p °
• gpprowate, and psrmas haus been ebbWod.
The AspenfFltkin Envfronrnpthtal Health DePaRmertte Palin County rand unhpl nM to Co of these ssuedSpmolon ee rif rT hold hsrtnles6
should the Ir4vlidbtsl sewage lisp ted efell
aOrmal eet� full T +wit ty In ears of +allmot is {ura he ls�ptamdun aUbrnittad by
the appilcant or hlalher represflnta ivs
�--tla�nt _�.._....� Dints
Signature of app j2� 98
t
Aattsipt S a DelaRe"Ivad by
�/ Z
EOC
E.O. CHURCH, INC.
ENGINEERS & GEOLOGISTS
August 14, 1998
Joe Coffey
P.O. Box 6486
Snowmass Village, Colorado 81615
Subject: OWS Installation Observation
Lot 11, Block 7, Filing 1, Brush Creek Village
2543 Juniper Hill Drive
Pitkin County, Colorado
Job No. 8682
Dear Mr. Coffey,
As requested, we performed two installation observations on the onsite
wastewater system (OWS) for subject site on July 8, 1998 and August 5,
1998. The OWS design is presented in a design dated July 5, 1997 and
revised November 25, 1997, May 26, 1998, and March 17, 1998.
The OWS was installed for a four bedroom residence of 2000 to 6000
square feet (SF). The installed OWS consist of a 1500 gallon single
compartment precast concrete septic tank, a 1250 gallon two compart-
ment precast concrete septic tank with a pump in a biotube vault, and
9600 SF of drip irrigation field. The 1500 gallon tank has an approx-
imate 1.5 feet by 2 feet hole in the baffle. We believe with this
hole the septic tank will act as a single compartment septic tank.
The pump was installed, but electricity was not installed at the time
of our observation. The OWS is in general conformance with our plans
and specifications. We understand the installer, Condon Construction,
will submit as-builts.
If there are any questions, please call.
E. O. CHURCH, INC,
..�ri C) I- c,C�
..3
Edward O. Church, P.E.
2 copies sent `.NAI'
cc: Aspen/Pitkin County Environmental Health Department
ATTN: Nancy MacKenzie
cc: NEWS, Ltd.
cc: Condon Construction
925 East 17th Avenue • Denver, Colorado 80218-1407 P.O. Box 2869 • Evergreen, Colorado 80437-2869
(303) 832-9692 FAX (303) 832-3517 (303) 674-0660 FAX (303) 674-0813
1
0jV
, .
Subject: OWS Installation Observation
Lot 11, Block 7, Filing 1, Brush Creek Village
2543 Juniper Hill Drive
Pitkin County, Colorado
Job No. 8682
Dear Mr. Coffey,
As requested, we performed two installation observations on the onsite
wastewater system (OWS) for subject site on July 8, 1998 and August 5,
1998. The OWS design is presented in a design dated July 5, 1997 and
revised November 25, 1997, May 26, 1998, and March 17, 1998.
The OWS was installed for a four bedroom residence of 2000 to 6000
square feet (SF). The installed OWS consist of a 1500 gallon single
compartment precast concrete septic tank, a 1250 gallon two compart-
ment precast concrete septic tank with a pump in a biotube vault, and
9600 SF of drip irrigation field. The 1500 gallon tank has an approx-
imate 1.5 feet by 2 feet hole in the baffle. We believe with this
hole the septic tank will act as a single compartment septic tank.
The pump was installed, but electricity was not installed at the time
of our observation. The OWS is in general conformance with our plans
and specifications. We understand the installer, Condon Construction,
will submit as-builts.
If there are any questions, please call.
E. O. CHURCH, INC,
..�ri C) I- c,C�
..3
Edward O. Church, P.E.
2 copies sent `.NAI'
cc: Aspen/Pitkin County Environmental Health Department
ATTN: Nancy MacKenzie
cc: NEWS, Ltd.
cc: Condon Construction
925 East 17th Avenue • Denver, Colorado 80218-1407 P.O. Box 2869 • Evergreen, Colorado 80437-2869
(303) 832-9692 FAX (303) 832-3517 (303) 674-0660 FAX (303) 674-0813
` - '
4
A
Em
NJ
OE M
I
lim"I 80011 5811801
1661 Z 4SWIMIS
'o Ims III)i
L661'i ONV
%
IN 401
166 'LZ 3Nnr
q
CIE
----------------------------------------------------
--- -----------
Igh
bill
-
I
lim"I 80011 5811801
1661 Z 4SWIMIS
'o Ims III)i
L661'i ONV
%
IN 401
166 'LZ 3Nnr
q
t=
Q
E2
{
--
EOC
t-- ID�r
E.O. CHURCH, INC.
ENGINEERS & GEOLOGISTS
April 24, 1998
Neil Morgan
c/o Jack Wilkie Builders, ATTN: Mark Elice
0020 Sunset Drive, Suite 3
Basalt, CO 81621
Subject: OWS Design Revision
Homestead Tract 14, Wildcat Ranch
0074 Popish Road
Pitkin County, Colorado
Job No. 8683
Dear Mr. Morgan,
As requested by Pitkin County Health Department, we have revised and
clarified our Onsite Wastewater System (OWS) design dated April 10,
1998 under our Job No. 8683.
1. On page 2 of the report the second sentence states the OWS
was designed on 12 minutes per inch (MPI). This is a typing
error. The OWS is designed on 48 MPI.
2. Fig. 2 indicates a'50% field reduction for the use of
chambers. A 30% reduction for the use of chambers is allowed in
Pitkin County. The difference between a 50% and a 30% reduction
will require the installation 1395 square feet of chamber
trenches utilizing a 30% field size reduction. The field should
be constructed similar to Revised Figs. 1 and 2 with a total of
90 chambers in six trenches. All other recommendations in our
April 10, 1998 should be followed.
If there are any questions or if we can be of further service, please
call.
E. O. CHURCH, INC,
Edward O. Church,
EOC/cbs
3 copies sent
cc: Nelson Environmental and Wastewater Solutions., Ltd.
cc: Pitkin County Health Department
FAX, 1-970-920-5197
925 East 17th Avenue • Denver, Colorado 80218-1407 P.O. Box 2869 • Evergreen, Colorado 80437-2869
(303) 832-9692 SAX (303) 832-3517 (303) 674-0660 FAX (303) 674-0813
PITKIN COUNTY. COL
SCALE
1' =60'
L L
Y d
O�
DISTRIBUTION
BOX WITH F
EOUILIZERS 8140
a
Ln
Z a
Ln
PRO SE MINIMUM 1750
GALL N WO COMPARTMEN
PRECA T CONCRETE
SEPTICNK: RECOMMEND PROPO C ERT NC
THE INS LLATION OF A W 3' 75' B RS
STANDAR ZED SEPTIC W T 9 R
TANK SU HA 2000
GALLON EPTIC ANK
t a
RECOMME D THE — — –�
INSTALLATION OF N 'se
EFFLUEN FILTER N
OUTLET. F TANK
N
0
e," d
o CLEANOUT
e o
J (f
BUILDING
m A5m63 ENVELOPE
W
in NOTE' I. TOPOGRAPHIC MAP PROVIDED BY
m,��`� SOPRIS ENGINEERING
m 2. RESIDENCE SERVED BY
z PUBLIC WATER: WATER LINE MUST
-cm BE 10' FROM EFFLEUNT LINE AND
25' FROM LEACH FIELD
• p2 PROPOSED 2500 SF
5 4 BEDROOM RESIDENCE
fig•
u u
m LIEKTL
U �
W �
L LOCATION OF PROPOSED OWS
JOB NO. 8683 REVISED FIG. I
IPYYPICAL PLAN VIEW n -
3" OR 4" PVC
OBSERVATION/'
.- e I1r1 i rime' n" i n kenrnc' _
TYPICAL CROSS-SECTION
NATURAL
GRADE
3'
SPECIFICATIONS
EFFLUENT INLET
FROM DISTRIBUTION
BOX
3" OR 4" PVC
OBSERVATION/VENT
PIPE
SLOPE FOR
I I DRA NAGE �-
L /,- GRAVELESS CHAMBERS
!!!111111 111111111111 6' MIN.
DESIGN CRITERIA TRENCH SPECIFICATIONS
STRUCTURE - 4 BEDROOM RESIDENCE: 2500 SF LENGTH - 93.75 FT
TOTAL LOADING - 0 = 800 GPD WIDTH - 3 FT
PERCOLATION RATE - T - 48 MPI NUMBER OF TRENCHES - 6
AREA - f1.75 X 0 X AM/5 TOTAL PROPOSED AREA - 1395 SF
TOTAL AREA - 1940 SF NUMBER OF CHAMBERS PER TRENCH -
REDUCTION FOR CHAMBERS - 30% 15
TOTAL AREA - 1358 SF TOTAL NUMBER OF CHAMBERS - 90
TREAMENT UNIT SPECIFICATIONS
TOTAL CAPACITY - 1.75 X 0 X (30 HOURS/24 HOURS) =1750 GALLONS
RECOMMEDATION - 1750 GALLON TWO COMPARTMENT PRECAST CONCRETE SEPTIC TANK
WITH EFFLUENT FILTER ON THE OUTLET
TRENCH DETAILS
JOB NO. 8683 REVISED FIG. 2
EOC
MIE.O. CHURCH, INC.
,I ENGINEERS & GEOLOGISTS
April 10, 1998
Neil Morgan
c/o Jack Wilkie Builders, ATTN: Mark Elice
0020 Sunset Drive, Suite 3
Basalt, CO 81621
Subject: Onsite Wastewater_ System Design
Homestead Tract 14, Wildcat Ranch
0074 Popish Road
Pitkin County, Colorado
Job No. 8683
Dear Mr.. Morgan,
As requested, we prepared an Onsite Wastewater System (OWS) design for
the proposed residence. Subsurface conditions were investigated by
the GTL/Thompson, Inc. (CTL). The CTL report was prepared under Job
Nos. GS -2132 and GS -2154 dated March 27, 1997 and June 16, 1997.
Nelson Environmental & Wastewater Solutions, Ltd (NEWS) also investi-
gated subsurface conditions and performed percolation test. The
Nelson report describing his results is dated October 20, 1997.
SITE CONDITIONS - A three bedroom quest residence and a caretaker unit
is proposed. The residence is located in a rural mountain area of
Pitkin County, Colorado. Vegetation consists of oak brush, pinion
pine and grasses. The slope is loo to 15% to the northwest at the
proposed drain field area.
PROPOSED CONSTRUCTION - An approximate 2500 square feet (SF), two
story, four bedroom residence is proposed. The sewage load for a four
bedroom residence with greater than 2500 SF is 800 gallons per day
(GPD), 1400 GPD with a 1.75 peaking factor. This loading includes a
p'� garbage grinder, dish washer, and washing machine. The residence will
be served water by a public water supply.
SUBSURFACE CONDITIONS - Subsurface conditions were investigated by a
drilling 2 profile holes, 6 percolation holes; and excavating a pro-
file pit, and 4 percolation holes. Please refer to the CTL and NEWS
reports for details. Subsurface conditions from Profile 1, from the
CTL report, consisted of organic sandy clay to 1 foot, underlain by
sandy clay with occasional gravel to 7 feet, underlain by silty to
clayey gravel, with cobbles and boulders to the maximum depth explored
of 10 feet. Subsurface conditions from Profile 2, from the CTL report,
consisted of organic sandy clay to 2 feet underlain by silty to clayey
gravel, with cobbles and boulders to 5 feet, underlain by sandy clay
with occasional gravel to 10 feet the maximum depth explored. No free
water or bedrock was encountered. Percolation tests indicate percola-
tion rates ranging from 0.09 to 120 minutes per inch (MPI). Subsurface
conditions at the profile pit consisted of dark brown loam topsoil to
2 feet, underlain by dense reddish -brown sandy clay and gravel grading
to a stiff sandy clay to the depth of the excavation of 9 feet. No
bedrock or free water was encountered. Percolation test indicate perc
rates ranging from 11 to 13 MPI, with an average perc rate is 12 MPI.
925 East 17th Avenue • Denver, Colorado 80218-1407 P.O. Box 2869 • Evergreen, Colorado 80437-2869
(303) 832-9692 FAX (303) 832-3517 (303) 674-0660 FAX (303) 674-0813
2
RECOMMENDATIONS - We recommend a septic tank with chamber -trench OWS
be installed at the location presented on Fig. 1. The OWS design is
based on a sewage load of 1400 GPD and a percolation rate of 12 MPI.
_ We recommend the installation of a minimum 1750 gallon two compartment
precast concrete septic tank with an effluent filter on the outlet.
A distribution box with flow equalizers should be installed for equal
!' distribution between the trenches. We recommend the installation of
four 3 feet by 7.00 feet chamber -trenches be installed as indicated on
Fig. 1. The OWS should be constructed similar to the details presented
on Figs. 1 through 3.
The proposed OWS well serve a 2500 SF four bedroom home. If additional
bedrooms are anticipated, we recommend installation of a larger septic
system at the time of original construction. The septic tank would
have to be increased by 500 gallons of capacity for each additional
bedroom. Each additional bedroom will require 212 SF of trench.
OPERATION AND MAINTENANCE - The owner must realize an OWS is different
from public sewer service. The owner must be aware of and assume
responsibility for maintenance of the system. We recommend the septic
tank be pumped every two years. There are daily considerations such
as not putting plastic or other nonbiodegradable materials down the
septic system. Water use must be monitored so toilets are not allowed
to run when seals malfunction. To illustrate the point, it should be
noted a running toilet will consume in excess of 1000 GPD if allowed
to run. As the system is designed for 1400 GPD, an excess 1000 gallon
loading Will flood and irreparably harm the system.
I
LIMITATIONS - Our layout, design and recommendations are based on data
submitted. If subsurface conditions different from those described in
this report are encountered, we should be called to observe the sub-
surface conditions. If proposed construction is changed, we should be
notified to evaluate the effect of the changes on the proposed system.
All construction is to be in accordance with ISDS regulations. Pipe
type and size, burial requirements, septic tank construction, and
other specifications, which are not depicted in our report, are to
conform to the requirements of ISDS regulations. The installer of the
OWS is to be approved by the County Health Department, and is to have
demonstrated a knowledge of the ISDS regulations and requirements.
The OWS design includes one installation observation. Additional
observations are not included in the cost of this design. If there
are any questions or if
we ca�jrn•.be of further service, please call.
E. 0. CHURCH, INC, �0•@� 0' ,y(�•'-mac
G� 9•A
r H �•
ow 13172 S«cc
C
Edward 0. Church , P. L3 ••• ri /ca �',�,� w
N P+X, ��Ca
EOC/cbs
3 copies sent
cc: Nelson Environmental and Wastewater Solutions., Ltd.
PI IN COUNTY. COLORADO SCALE
T 1 " 60
1 A
DISTRIBUTION
BOX WITH F
EQUALIZERS 6140 �--
*3
N
2
' r
PROI SE MINIMUM 1750 - (5 00
GALL N WO COMPARTMEN
PRECA T CONCRETE'
SEPTIC NK: RECOMMEND
THE INS LLATION OF Ad a'se PROPO C ERT NC
STANDARD ZED SEPTIC—� - x 100' B RS
TANK SU :H A 2000 '� S{�T � - O 11 R
GALLON SFPTIC TANK
RECOMME D THE
INSTALLA IN OF N 'se
EFFLUEN FILTER N
OUTLET. F TANK
m �
m
m \
e�w
0
o� CLEANOUT
<C
J g
O ~� i
5 BUILDING
CE - e3 ENVFLUPF
En
a� NOTE: I. TOPOGRAPHIC MAP PROVIDED BY
& 4W, SOPRIS ENGINEERING
m
2. RESIDENCE SERVED BY
z PUBLIC WATER: WATER LINE MUST
BE 10' FROM EFFLEUNT LINE AND
w 25' FROM LEACH FIELD
PROPOSED SF
56�A�' A2 4 BEDROOM ROESID NCE
U'� r
LOCATION OF PROPOSED OWS
JOB NO. 8683 FIG_
TYPICAL PI AN VFW
3' OR 4" PVC
OBSERVATION/
TYPICAL CROSS-SECTION
NATURAL
GRADE
EFFLUENT INLET
FROM DISTRIBUTION
BOX
3" OR 4` PVC
OBSERVATION/VENT
PIPE
II II SLOPE FOR
II II DRA1NA(;F <-
- 1-1. --GRAVELESS CHAMBERS
6' MIN.-
SPECIFICATIONS
DESIGN CRITERIA TRENCH SPECIFICATIONS
STRUCTURE - 4 BEDROOM RESIDENCE: 2500 SF LENGTH - 100 FT
TOTAL LOADING - O =T8 0r4,8
_ � WIDTH - 3 FT
PERCOLATION RATE - MPS NUMBER OF TRENCHES - 4
AREA - (1.75 X 0 X ,(Ti/5 TOTAL PROPOSED AREA - 992 SF
TOTAL' AREA -' 1940 SF /�� NUMBER OF CHAMBERS PER TRENCH
REDUCTION FOR CHAMBERS F 50%� 16
TOTAL AREA - 970 SF `- - TOTAL NUMBER OF CHAMBERS - 64
TREAMENT UNIT SPECIFICATIONS
TOTAL CAPACITY - 1.75 X 0 X (30 HOURS/24 HOURS) =1750 GALLONS
RECOMMEDATION - 1750 GALLON TWO COMPARTMENT PRECAST CONCRETE SEPTIC TANK
WITH EFFLUENT FILTER ON THE OUTLET
JOB NO. 8683
TRENCH DETAILS
FIG. 2
o
1750 GALLON TWO COMPARTMENT PRECAST CONCRETE SEPTIC TANK
ACCESS LID ACCESS LID
STANDARD TANK DETAIL
JOB NO. 8683
:TEND PVC
�NDLE
DRENCO
I' DIAMETER
IOTUBE FILTER
FIG. 3
L
Juno 16, 1997
Jack �Nllkie Builders
0020 'Sunset Drive, Suite 3
Basalt, CO 81621
Attention: Mr. Mark Elice
Subjact: Percolation Test Resufts
Morgan Residence
Homestead 14
Wildcat Ranch
Pitkin County, Colorado
Job No. GS -2132 and 05-2154
Gentleman,
As requested, we have performed percolation testing as part of our soils and
foundation Investigation CTL(Mompson, Inc. Job No. GS -2132, dated March 27,1997
and additional percolation testing, CTL1Thompson, Inc. Job No. GS -2154 as
requested by you.
Two areas of percolation borings P-1 through P-6 were prepared during our
soils and foundation investigation. Profile borings No.1 and No. 2 were drlllad to
a depth of approximately 10 foot. Locations of the profile borings and percolation
borings are shown on Figure 1. The soils encountered In the percolation and profile
boring* consisted of sandy clays and sandy gravels with cobble and boulder.
Percolation testing was performed on May 28,1997 and repeated on May 29,
1997. Test results from both days were simllar. Test results obtained on May 29,
1997 are presented on pigure 2. Percolation boring P-3 had been destroyed by the
excavating equipment and no results are available for this boring.
i
The percolation rate is generally faster than one minute per inch- We believe
that the gravel, cobble and boulders have created enough void space and that sand
layers are able to disperse the water quickly. A standard leach field is not
appropriate for this site.
Additional percolation testing was requested in test pits excavated by the
utility contractor. Locations of the test pits P-7 through P-9 are presented on Figura
1. The utility trench excavation in this area was observed by our laboratory/field
manager. The excavation penetrated 1 foot of organic, sandy clays underlain by
sandy clays with gravel and cobble. Interbedded sand layers and occasional
boulders were observed. No groundwater was observed at the time of our visit.
CTUTHOMPSON, INC.
CONSULTING ENGINEERS
234 CENTER DRIVE 6 GLENWOOD SPRINGS, COLORADO 151601 0 (970) 945-2809
. o the
II rmed in test its P-8
and P-9
duo t
q performed could not b P
,. Percolation tasting Pe
presence of water. We believe the water Is from spring run-off and has created a
parched groundwater table.
Percolatio ting was performed In test pit P-7 by hand excavating a B to
a inch diameter0n the bottom of the test pit. The test hole was saturated and
percolation testing performed the next day. Test results aro presented on Figure 2.
We recommend a design percolation rate of 240 minutes per inch. Due to the
wide range of percolation rates measured on this site we recommend performing
additional percolation testing In the actual area when the final location Is chosen.
We appreciate the opportunity to work with you on this project. If you have
questions, please Gall.
Very truly yours.
CTLIMOMPSON, INC.
Dan Downing
Laboratory/Field Manager
DD:JM:lp
(3 copies sent)
JACK WNUE WLDERS 3
Job NO. 08-IM32 AND US -2154
MORGAN RESIDENCL.
HOMESTEAD
PITKIN COUI
i; t {\f
11
1A��
BTox1ats
uildingnl
*\ Footprint
Scale 1,= 100'
LOCATIONS OF PERCOLATION BORINGS
Job No. OS -2132 and OS -2184
F*k
Fig. 1
s
V Vl ..'sl 1JJ( Vl.rl LJ{JL IILL Ill_5':Jy LILT
AML
SATURATION AND PREPARATION
DATE: 5/28197
TIME AT START OF SATURATION: 11:30am
PERCOLATION TEST
DATE: 6/29/97
WATER IN BORING AFTER 24 HOURS
_ YES X NO
PERCOLATION TEST RESULTS
HOLE
NUMBER
DEPTH
(INCHES)
TIME AT
START OF
INTERVAL
TIME
INTERVAL
(MINUTES)
DEPTH TO WATER
CHANGE
IN WATER
DEPTH
(INCHES)
9.0
10.75
11.5
PERCOLA-
TION RATE
(MINJINCH)
0.11
0.09
0.09
START OF
INTERVAL
(INCHES)
13.3
12.0
11.0
--^
END OF
INTERVAL
(INCHFS)
22.6
22.75
22.6
P-1
43.75
10:16
10:10
10:20
1
1
1
P,2
38.5
10:14
1 S
4.6
17.0
12.S
1.20
--
10:32
10
4.0
13.75
9.75
1.03
10:44
10
5.5
14.25
8.76
1.14
10:56
11
4.0
14.0
10.0
1.10
P-4
36.5
10:48
0.5
10.5
27.5
17.0
0.029
10:49
0.5
10.25
25.75
15.5
0.032
10:50
0.6
11.0
26.5
15.5
0.032
P-5
37.25
11:00
4.0
6.0
14.0
8.0
O.S
11:05
4.5
4.75
14.0
9.25
0.49
11:11
4.0
3.75
13.0
9.25
0.43
P-6
37.5
11:31
1
7.26
17.5
10.25
0.098
11:33
0.75
7.5
16.26
7.7S
0.097
11:34
1
6.5
16.5
10.0
0.1
P-7
15.76
10:11
30
5.0
5.25
0.25
120
JI;
10:41
30
5.25
5.25
0
n
11:11
30
5.2S
5.26
0
-
11:41
30
5.25
5.5
0.25
120
Job No. GS -2132 and GS -2154 Fig. 2
.Nelson Envirottmental & Wastewater ,Solutt ms, Ltd.
E
W October 20, 1997
S Mr. Neil Morgan
c/o Jack Wilkie Builders
0020 Sunset Drive - Suite #3
Basalt, CO 81621
Attention: Mr. Mark Elice
Subject: Soils Evaluation and Percolation. Test for Individual Sewage System Design for the
Morgan Residence, Homestead Track 14, Wildcat Ranch Subdivision, numbered as 0074 Popish
Road
Dear Mark,
As requested, Nelson Environmental and Wastewater Solutions, Ltd., performed a soils study and
percolations tests to design a septic system for the proposed residence. We conducted this study
according to Article 5 of the Pitkin County Individual Sewage Disposal Systems Regulation
on September 25, 1997. We have based our recommendations on the subsurface conditions
encountered during our visits to the property. Please furnish this letter and the forthcoming
engineering design to the Aspen/Pitkin Environmental Health .Department to obtain a permit to
construct, this individual sewage system.
Proposedd Constru ion:
The planned guest residence, now under construction on the property, is a two story house on a
full foundation with approximately 2500 square feet of living area. There is a total of three
bedrooms, three baths and one hal£ baht in the guest house. In addition, an attached caretaker
unit is planned, with one bedroom and a three-quarter bath. Therefore, a total of four bedrooms
should be used for the basis of onsite wastewater system design. Low water -use toilet fixtures are
to be provided in all bathrooms.
The property is served by the treated water supply furnished by the subdivision_
Site Conditions'
The site is in the Wildcat Ranch Subdivision on a large tract of land. Access to the site is from
Popish Road off Lake Wildcat Road. The main water supply line is across the access road from
the property and the water tap and shut-off are just east of the driveway. The water service line
has been dug to the building site through a draw on the property.
The ground surface which appears natural in the proposed area of the absorption field slopes to
the Northwest at grades of IW/o to 15%. The vegetation in the area of the residence is primarily
oak brush and a few pinion pines, with a large open meadow below the location of the building
P.O. Box 6961 Snowmass Village, CO 8167.5 Office (970) 923+3289 Home &Fax (970) 923.2766
J.VC J1? J.J_Jr Ullu 1"ILL-_
Morgan Residence
Homestead Tract 14, Wildcat Ranch Subdivision
10/20/97
Page 2
area. This meadow portion of the lot is covered with sagebrush, native grasses, weeds, and wild
flowers.
Subsurface Con-dilinns.
A soil profile hole, and two previous soil borings by CTL/Thompson, Inc., were done within 25
feet of the proposed absorption area. Each was excavated or bored to a depth of nine or ten feet.
No ground water was encountered in the profile excavations. The soil textures encountered were
a dark brown, loam topsoil to about twenty four inches of depth and then, below the topsoil, a
soil characterized as dense reddish brown stiff sandy clay and gravel, grading to a stiff sandy clay
to the depth of the profile borings and excavation.
Percolation Testing:
The subsurface soil conditions were evaluated with the standard percolation test procedures at the
approximate locations shown on Figure 1. Twelve inch diameter test holes were hand dug at the
location of the proposed absorption area., after finding the deeper holes in the bottom of the
backhoe pits to five feet filled with drainage water that remained for several days.
The percolation tests in the sandy clay topsoil to about 24 inches in depth, were performed to a
depth just above the reddish clays. Several inches of gravel were placed on the bottom of each of
the shallow percolation test holes before beginning the presoak. The percolation holes were pre-
soaked the morning of testing, eight hours before beginning the measurements. After the initial
fillings, water was added approximately every two hours. The test holes, located in the black
sandy clay topsoil, drained to within the bottom few inches of the hole after each presoak filling.
We notel'that there was water standing in the other, deeper test holes into the stiff sandy clays for
several clays after each rainstorm. For this reason, it was not possible to use conventional
percolation test procedures to obtain a rate in any of the deeper percolation test hole locations
prepared for this evaluation.
The results of the percolation testing are presented in Table 1. These results indicate that the layer
of topsoil located on the site has an average percolation Rate of 12 minutes per inch. However,
the sandy clays encountered just below the holes would have had very slow measured percolation
rates, and for that reason, were not tested.
2
Morgan Residence
Homestead Tract 14, Wildcat Ranch Subdivision
10/20/97
Page 3
The topography and the limiting layer of stiff sandy clay and gravel encountered have led us to
recommend a onsite sewage system, using techniques other than those normally used for a
conventional infiltration system_
Given the soil conditions and possible drainage patterns off of the ridge, we recommend that this
sewage disposal system be designed by a registered professional engineer. As I mentioned in our
phone conversations, we have referred this project to E. 4. Church, Inc.
The usual minimum Pitici.a County requirements for this installation are based on an average daily
system flow of 800 gallons per day. This flow would require a septic tank volume of 2000
gallons_ A large mound, trench, or drip irrigation system, incorporated into the meadow or at the
base of the hillside below the house, could be used for discharge of the septic tank effluent. The
design options will be contained in the completed septic system design developed by the
consulting engineer_
Limitations: This report has been prepared according to generally accepted practices in this area
for use for sewage disposal design purposes. The conclusions and recommendations submitted in
this report are based upon data obtained from our site visits at the location indicated. There is
some possibility that the nature and extent of variations in the subsurface soils across the site may
not have been evident at the time of this investigation, and may need additional evaluation if
further excavation reveals conditions considerably different from those described. This office
should be advised of any unusual situations as soon as possible so we may reevaluate our
recommendations.
If you have questions or if we may be of further assistance, please call the office.
Sincerely, Reviewed 1Ty: •�
�j'� :TF
.�, yG� 90
_.
172 ;
Robert F. Nelson, R.ERS. Ed Church, P.E. I- (�j, �:k/President E. O. Church, Engineer and Contiv
cc.- Ed Church, E. G Church, Inc., Engineers and Geologists
I. -
v
ilr■Ir-
MORGAN RE51 DENCE,
HOMESTEAD 14, V'-'-DCAT RANCH
PITKIN COUNTY, COLORADO
i 4ip*
Profile
P►raflir
y 4,51
�DF7��1�CMfATJ+w�
LOCATIONS OF PERCOLATION HO►L'W
no. !
.p
F��sN
I tit
,to,
it
i + - Approximate
Souls loge 100'
LOCATIONS OF PERCOLATION HO►L'W
no. !
4 27
10
109/16
71/2
3 1/16
10
71/2
5 15/16
19/16
Nelson Envfron»terttuY & Wastewater S614#ians,
Ltd
43/4
E
10
4314
37/8
7/8
10
37/8
27/8
1
2 /8
2
TABLE I
W
S
PERCOLATION TEST RESULT
FORM
Hole
Length
Depth at',
Depth at
Drop in
Average
Hole
Depth
of Interval
Start of Interval
End of Interval Water Level
Percolation
No.
(in.)
(Minutes)
(Inches)
(Inches)
(Inches)
Rate(Min./Inch)
1
24
10
47/8
39/16
15/16
10
39/16
25/8
15/16
10
25/8
115/16
11/16
10
115/16
15/16
5/8
10
15/16
3/4
9/16
(refill)
10
41/8
31/4
7/8
11
2
25
10
47/8
3718
1
10
37/9
3 1/16
13/16
10
31/16
23/8
11/16
10
23/8
13/4
5/8
(refill)
10
45/8
33/4
7/8
10
33/4
3
3/4
13
3
25
10
3 1/2
15/16
23/16
10
15116
1/4
11/16
(refill)
to
5
4
1
10
4
31/8
7/8
10
3 1/8
21/4
7/8
10
21/4
1 1/2
3/4
13
4 27
10
109/16
71/2
3 1/16
10
71/2
5 15/16
19/16
10
5 15/16
43/4
1 1/I6
10
4314
37/8
7/8
10
37/8
27/8
1
2 /8
2
7/8
1
II
PO. !lox 6961 Snowmass Village, CO 81615 Office (970) 923.3289 Home & Fax (970) 923.2766
10
7
Morgan rroi�Y
Tract 14 Wildcat Ranch Subdivision
0074 Popish Road
Date of Percolation Test:
09/25/97
1
II
PO. !lox 6961 Snowmass Village, CO 81615 Office (970) 923.3289 Home & Fax (970) 923.2766
1
NeLwm B'nvlronmentW £ Wastewater
EProperty Addiew. 0740 Popisho
Ltd
19
W Legal Description: Homestead Tract 14, Wildcat Ranch Subdivision
Property Owner
Name: Neil C. Morgan
r,,,/ Moruatt and Come=
2000 W. Loop S. Suite 2020
Houston, TX 77027
Contractor: Excavating Contractor:
t hm vin
Name lack Wilkie Builders Name Aspen I✓art o g
Address 0020 Sunset. [fir. -Suite 43 Address387 l h
R_$set CO 81621 Carbondale_ CO 81623
Phone 9274226 Phone 963-0377
Saturation and Swilling;
o Smeared surfaces removed? X Yes
o Gravel Added? X Yes To a 3." Depth
o Date and Time presoak water added
09/25/97 @ 9:45 a.m.
o Amount of presoak water added
24 gallons per test hole
o Water remaining in holes after each presoak period?
Hole 1: _ Yes X_ No
Hole 2: _Yes X No
Hole 3: Yes X_ No
Hole 4: `Yes X No
Percolation Bate Mc_awrrement�
Hole 1: 11 mimrtes/inch
Hof 2: 13 mirmes/iwb
Hole 3: 13 mintaevinch
Hole 4: 11 minutestinch
AVERAGE 112 minutWinch in
Groundwater.
o Not Encountered to 9 ft. in pKoftle
o Estimated depth to high seasonal
water if not encountered- 40 feet
o Is area believed to be subject to
seasonal fluctuations which could
result in a seasonal water table?
_ Yes X No
Slope in absorption arra
15% to the NW
Sedrock
o Not Encountcrod at 9 ft.
o Estimated deptb if not encountered ->44l feet
o Type of bedrock:
Claystone
X Fractural _ Weathered
o Is bedrock believed to be perrtwAte?
Yes X No
I certify that the above information is correct and complete to the hest of my knowle* and that all
tests were perfb n M in accordance with the provisions of Piddn County Individual Sewagee
DWposal 39m Rwlatian. Article 5-1 through 5-8 and under the supervision of Resgistered
Professional Engineer.
Reviewed by: Q�P00 REO�S
�'`• � cyU�F�m
Rnbert F. Nelsen Pct Chumb, P.E.
President E. O. Church, Inc. Engineers dt Geologists
ZONAL E��\
F.O. Box 6962 Snowmass Village, CO 81615 Office (970) 923.3289 Home & Fax (970) 923.2766
I
ASPEN/PITKIN LNVIRONMENTAL HEALTH DEPARTME
ISDS DESIGN REQUIREMENTS
'r DEPARTMENT USE ONLY
Name Neil Morgan Parcel ID
House SIZE 2,497 (75 gpd, 100 gpd, or 130 gpd)
Number of Bedrooms, Lofts, Offices, Similar Rooms, Main House
Number of Bedrooms, Lofts, Offices, Similar Rooms, Caretaker unit
Average Daily Waste Flow 600 # bedrooms X 2 people/br X 75
State Review Required? no
Perc Rate 48 (T)
Design Flo w (Q) _ # bedrooms X 2 people/bedroom X gpd X 1.75
Q= 1400
Absorption Area (A= Q/5 X SQRT)
A = 1939.897 sq. ft. of absorption area required
125 infiltrator units without reduction
A maximum 30% reduction is allowed for use of deep gravel or gravelless chambered system.
1357.928 sq.ft. with reduction
88 infiltrator units with reduction
Type of system: []Absorption trenches []Absorption bed [] Gravelless chambers
[]Dry well []Seepage Pit []Pumping Chamber
Is an Engineer -Designed System required? no
yes reason:
Minimum tank capacity 1750 gallons
SETBACK FROM WELL
# of feet = 132
Remember: 8 feet of additional distance for each 100 gallons/day of design flow over 1,000 gallons/day
should be added unless an RPE can verify that it is not necessary to prevent contamination.
APPROVED FOR ISSUE BY:
SYSTEM INSTALLED BY:
DATE OF FINAL INSPECTION REQUEST:
FINAL INSPECTION BY:
Printed on Recycled Paper
DATE:
DATE:
FROM : Hegberg/Wildcat Land Co. PHONE NO. : 970 923 5338 Jun. 23 1997 08:28AM P1
W
W1 LDCAT RANCH
June 23, 1997
Mark Elise
Jack Wilkie Buildars
0020 Sunset Drive, Suite #3
Basalt, CO 81621
Dear Mark,
The Wildcat Ranch Association operates a domestic water system capable of
delivering 1,782,000 gailyr of treated water to Homestead 14. The system has
310,000 gal of storage and a treatment rate of 200 GPM. The home on 14 has
tapped the system, installed lines and hydrants at the house, and pressure tested
the system.
If you have any further questions, please call.
Sincerely
". & L
Bill Hegberg
President
Wildcat Ranch Association
WILDCAT D A N C N ASSOCIATION
9 9 7 5 WILD [ A 7 WAY • PC, BOX 2 7 4
S H O W M A S S, COLORADO 8 1 65 4
TEL 303.423 2841 FAX 303.923.4:51
r�
INCORPORATED
MEMORANDUM
TO: Nancy MacKenzie @ Pitkin Environmental Health Department
FROM: Mark: Elice
DATE: April 20, 1998
PROJECT: The Morgan Residence
Nancy MacKenzie,
This memorandum is accompanying an application for a septic system permit for Lot
14, Wildcat Ranch, Snowmass Colorado.
The application requires a ,copy of county approval'. The approva'sofor
al Wildcatre
P.U.D. and is a very lengthy document. The app
orded
as the Town of Snow94-08Ranch
is in the form of a owmass Ordinance, # 94 08, Second Amendment to P.U.D. Wildcat
Ranch, Book 40, page 33.
If this is not sufficient information, please contact me.
Very Sincerely yours,
Mark Elice
Project Manager
o..;IA-, inr nron Sunset Drive, #3 Basalt, Colorado 81621 970/927-4226 Fax: 970/927-4712