HomeMy WebLinkAbout407 Brooks Ln - 210905200001Environmental Health
Department
P.O. Box 179
500 Broadway
Eagle, CO 81631-0179
Phone: (970)328-8755
Fax: (970)328-8788
EAGLE COUNTY
Pro'ect Address Parcel No.
000407 Brooks LN Eagle, CO 81631- 210905200001
Owner Information Address
JOHN HARDESTY 33710 PO BOX Phone: (480)488-1372
LAUGHLIN NV 89028- Cell:
Engineer(s) Phone
LKP Engineering, Inc (970)926-9088
I BEAUMONT EXCAVATING 10-09 Yes I
Inspections:
For Inspections call: (970) 328-8755
Inspection 1 IVR
OWTS Partial Inspection 093
OWTS Final Inspection 095
Permitted Construction / Details:
This system is designed for a 4 bedroom residence.
Recommendations for this system are as follows: 1500 gallon, 2 compartment, mono pour concrete
septic tank, and an evaportranspi ration bed with the dimensions being 65.5 feet by 102 feet
Install the system per the design submitted by LKP Engineering, project number 09008, signed, stamped,
and dated 5/29109.
Call LKP for inspection before covering any portion of the system.
CONDITIONS: Office Copy
1. THIS PERMIT EXPIRES BY TIME LIMITATION AND BECOMES NULL AND VOID IF THE WORK AUTHORIZED BY THE PERMIT IS NOT
COMMENCED WITHIN 120 DAYS OF ISSUANCE, OR BEFORE THE EXPIRATION OF AN ASSOCIATED BUILDING PERMIT
2. ALL INSTALLATIONS MUST COMPLY WITH ALL REQUIREMENTS OF THE EAGLE COUNTY INDIVIDUAL SEWAGE DISPOSAL SYSTEM
REGULATIONS ADOPTED PURSUANT TO AUTHORITY GRANTED IN C.R.S. 25-10-101, et seq., AS AMENDED
3. THIS PERMIT IS VALID ONLY FOR CONNECTION TO STRUCTURES WHICH HAVE FULLY COMPLIED WITH COUNTY ZONING AND
BUILDING REQUIREMENTS. CONNECTION TO, OR USE WITH ANY DWELLING OR STRUCTURE NOT APPROVED BY THE ZONING AND
BUILDING DEPARTMENTS SHALL AUTOMATICALLY BE A VIOLATION OF A REQUIREMENT OF THE PERMIT, AND WILL RESULT IN
BOTH LEGAL ACTION AND REVOCATION OF THE PERMIT
4. CHAPTER IV, SECTION 4.03.29 REQUIRES ANY PERSON WHO CONSTRUCTS, ALTERS OR INSTALLS AN INDIVIDUAL SEWAGE DISPOSAL
SYSTEM TO BE LICENSED
Terri Vroman June 04, 2009
Issued by: Environmental Health Department, Eagle County, CO Date
Department of
Environmental health
Eagle (970) 328-8755
Fax: (970) 328-8788
El ]ebel (970) 704-2700
TOLL FREE: 800-225-6136
./-i- L'C_5 rSjk-A01-L ��e4-cr,`, Cov,--
P.O. Box 179
500 Broadway
Eagle, CO 81631
www.eaglecounty.us
APPLICATION FOR INDIVIDUAL SEWAGE DISPOSAL SYSTEM PERMIT
ISDS Permit # ®uyT5-5- 7- - 3/103 Building Permit #
INCOMPLETE APPLICATIONS WILL NOT BE ACCEPTED (SITE PLAN MUST BE INCLUDED)
FEE SCHEDULE
APPLICATION FEE $373.00
This fee includes the ISDS Permit, Site Evaluation (Percolation Test, or Soil Profile Observation) and
Final Inspection. Additional fees may be charged if a re -inspection is necessary, or a pre -construction
site visit or consultation is needed. The re -inspection fee is $55.00.
Make all remittance payable to: Eagle County Treasurer.
Property Owner: joky\ 6 C.Iara Rafdet Phone: qyC) ly?a
Mailing Address: Ro. $p)( 33-1100 "Lks'►lin AJU M�)g
Applicant/Contact Person: tea Phone:
Licensed Systems Contractor: je_Ar R& nnnn �- License #
Company/DBA: 5equLmanf Phone: 3cj0 -939 3
Mailing Address: :P.O . 13ox o�0a+ 6:ypsum , Co 81637
Permit Application is for: New Installation L! Alteration C Repair
Location of Proposed Individual Sewage.5Dctonl3:st7mowr+ship yI R4Ar 8y� o-F-�h �thP,ul,
Legal Description: Trac.+ 46 D E S cdCon SZ Town5hip Z IZa>ng�-e V W o fir 6*h P. M+
Tax Parcel Number: DI aq - 05?,-00_ 001 Lot Size:
Assessor's Link: www.eaglecounty.us/patie/
Physical Address: L10-7 BrooL5 (-one. �a P
Building Type: j5( Residential/Single Family Number of Bedrooms:
Residential/Multi Family Number of Bedrooms:
F- Commercial/Industrial* Type of Use:
*These systems require design by a Registered Professional Engineer
Type of Water Supply: ate Well f Spring rface � Public
If Public Name of A-V
er Zfp(,,� ,
Applicant Signature
Office Use Only
Amount Paid: ?_7 C Receipt#: Check#: � Date: �� D
'Hardesty Residence Et -Bed Septic Permit Page 1 of 2
Ray Merry
From:
Ray Merry
Sent:
Tuesday, May 19, 2009 10:28 AM
To:
'Luiza Petrovska'
Cc:
#environment
Subject: RE: Hardesty Residence Et -Bed Septic Permit #OWTS 5-09-3163
Luiza,
This looks to be about the same as Kesler's so at least we've got historical information that their's is working —
thanks for calling them.
What do you think about incorporating inspection portals at strategic locations tied into the laterals? What I'm
thinking is that without BOD reduction, biomat builds up on the perforations and may cause clogging. The Keslers
would only notice that their drains may slow down over time or at a point, may cause backup into the house or on
the ground, depending on the water -tightness of the tank lids. It seems that if there were some sort of access to u�
the laterals, they may be able to be pressurized to blow out the buildup so long as the effluent line could be
blocked off when pressurizing the system. Maybe I'm over -thinking this too and, pressurizing_ might not be these r
best way to remove biomat from clogged perforations. It may help to have an effluen 7ter in the outlet tee also.
noticed the tank is specified for 1,500 gallons which is fine. Do 1,500 gallon tanks come in two pieces? I'm-('
wondering if we'd want to avoid a two-piece tank and maybe even consider a mono -pour due to the high 6'
groundwater conditions and the potential for leaking. A system across from the Kesler's (ironically enough) is a
mound that was receiving continuous doses of groundwater due to a leaky tank. Also do we need to specify
installation techniques that overcome potential buoyancy?
I checked the State Guidelines regarding ET beds and their calculations for area are about three times bigger. I
think we should stick with the local regulations since I'm not convinced the state guidelines are correct and since
the Kesler's system appears to be working fine. The section from the state says:
9- The follow-ing forniu a inay- be used as a guide for detenmung the
area necessary for total ev-apotra isl3iration of septic tank- eft`luent:
Area (in square feet) = Design Flow (in agallons gr dad,) x CO3
Lakze Ev-aporation Rate at the Site
(in inches per year)
Last but not least, would you please specify a seed mix for the final cover?
Thanks. If you want to call me I should be around today.
Raymond P. Merry, REHS, Director
Environmental Health Department
Eagle County Government
P.O. Box 179
Eagle, CO 81631
970-328-8757
fax 970-328-8788
ray. merry�a eaglecounty.us
From: Luiza Petrovska [mailto:luiza@lkpeng.com]
5/19/2009
Hardesty Residence Et -Bed Septic Permit
Page 2 of 2
Sent: Monday, May 11, 2009 3:14 PM
To: #environment
Subject: Hardesty Residence Et -Bed Septic Permit
<<09008SD-ET SD (1).pdf>>
Hi,
Attached is the revised Septic System Design for the Hardesty Residence. The first design was done for three
bedrooms, but they actually have four. Sorry for any inconvenience. Also, they don't have a well. They are already
serviced by a public water.
Sincerely,
Luiza Petrovska, PE
LKP Engineering, Inc.
275 Main Street, C-104
P.O. Box 2837
Edwards, CO 81632
Tel: 970-926-9088
Fax:970-926-9089
Cell: 970-390-0307
E-mail: lkpeng@centurytel.net
luiza@lkpeng.com
Privileged/Confidential Information may be contained in this message and any
related attachments. If you are not the addressee indicated in this message (or
responsible for delivery of the message to such person), you may not copy, review,
distribute or forward the contents of this message to anyone. In such case, you
should delete this message from your computer and kindly notify the sender by reply
email. Thank you.
5/19/2009
awnft
(;661tech
HEPWORTH - PAWLAK GEOTECHNICAL
November 6, 2008
Hepworth,11IM k Geotechnical, Inc.
1'. 0. Drawer 1887
Silverthorne, Colorado 80498
Phone. 970-468.1989
Fax:970-468-5891
email• hpgeoV` 11pgeotech.com
Bronn Excavating
Attn: Dave Bronn
P.O. Box 4867
Eagle, Colorado 81631 Job No. 408 326A
Subject: Individual Sewage Disposal System Feasibility for Proposed Hardesty Residence,
407 Brooks Lane, Eagle, Colorado.
Dear Dave:
As requested, .Hepworth-Pawlak Geotechnical, Inc. has evaluated the feasibility for sewage
disposal at the subject property. Our observations and recommendations for sewage disposal are
presented in this report. We previously conducted percolation testing at the site and presented our
findings in a report dated October 10, 2008, Job No. 108 531A. This supplemental service was
performed in accordance with our agreement for engineering services to you dated September 15,
2008.
Site Conditions: The Hardesty property at 407 Brooks Lane is approximately 22 acres and
located within the Town of Eagle limits. The proposed residence will be located in the
southwestern corner of the property. A majority of the property contains a series of ponds, small
streams, irrigation lines and wetland vegetation. The Eagle River borders the property to the
west.
Feasibility: A profile pit was excavated and percolation testing performed at the subject property
on September 24, 2008 to evaluate the feasibility of an Individual Sewage Disposal System
(ISDS) adjacent to the proposed residence. A copy of the percolation report is provided as an
attachment. The profile pit revealed relatively shallow groundwater at approximately four feet
and will require a mounded ISDS. The location of the mounded absorption field is limited due to
the proximity of the Eagle River, the 100-year flood plain mark and adjacent water courses on the
property; however, there is adequate space for an ISDS on the property which meets the Eagle
County Land Use Regulations for Individual Sewage Disposal Systems.
Glenwood Springs 970-945-7988 * Parker 303-841-7119 0 Cotorado Springs 719-633-5562
Dave Bronn
November 6, 2008
Page 2
It is our opinion that a conforming ISDS in the near vicinity to the residence is the most practical
alternative for sewage disposal for the proposed residence; however, Town of Eagle code requires
that the residence be connected to the Town sanitary sewer system since the property is located
within the Town limits. Given the size of the property and proposed building site location,
connection to the sanitary sewer would be an enormous undertaking and is not practical. There
are several issues dealing with the feasibility of connecting to the sewer main line which is
discussed below:
• The distance between the proposed residence and sewer main tap -in area would be
approximately 1,300 feet or greater in length. This would require multiple lift stations,
sewage and effluent pumps, electrical power at each lift station, set of control panels for
each pump, and an alarm system for each pump to verify that they are operational.
• The effluent line would have to be a minimum of 40 inches in depth for frost protection.
This depth may need to be increased if the effluent line is located in the roadway as frost
depth may be deeper. The line would have to be properly bedded and sloped at 2%
minimum to drain between lift stations to prevent freezing. The groundwater table was
already identified at approximately 4 feet below ground surface in September and has
potential to be shallower during the high groundwater period.
• The excavation and dewatering issues involved with digging such a trench in shallow
groundwater conditions would be enormous. It will be difficult or impossible to achieve
proper compaction in the native soils in wet conditions and clean aggregate will likely
need to be imported for effluent line support. If proper compaction is not achieved,
settlement could occur and the effluent line could rupture leading to a release of untreated
effluent into the subsoils and groundwater.
This large excavation would not be good for the surrounding environment, especially the
Eagle River. A large amount of time and effort would need to be put forth during
placement of the sewer line to keep sediment -laden water and runoff from entering the
Eagle River and surrounding watershed.
In addition to the difficulties presented above, the cost of construction of the effluent
distribution system would be substantial and likely considerably more than construction
of a mounded septic system that meets the Eagle County Land Use Regulations for
Job No. 408 326A
Dave Bronn
November 6, 2008
Page 3
Individual Sewage Disposal Systems. This presents an undue hardship to the landowner.
The potential costs include but are not limited to: multiple tanks and lift stations, multiple
pumps, control panels and alarms, piping, electrical supply, approximately 1,300 linear
feet of excavation which will likely total over 320 cubic yards of soil excavation and
import of over 100 cubic yards of clean aggregate for piping support.
Recommendations: The proposed residence is suitable for a septic system which conforms to
the Eagle County Land Use Regulations for an ISDS and would have minimal impacts to the
surrounding environment. It is our opinion that connecting the proposed residential sewer line to
the sewer main has potential to be problematic and will present an undue burden to the
landowner. There is a significant increase in cost, time, imported materials, mechanical
components, dewatering issues and environmental impacts associated with connecting the
residential sewage to the sewer main.
Limitations: The recommendations submitted in this report are based upon the data obtained
from our field observations, soil characteristics exposed in the profile pit and our experience in
the area. We make no warranty either express or implied. If you have any questions please feel
free to contact us.
Sincerely,
HFPWO T - PAWLAK GEOTECHNICAL, INC.
Specialist
Reviewed by:
JAD
Attachment: Percolation Test Report, October 10, 2008, Job No. 108 531A
Job No. 408 326A G99tech
APPROXIMATE SCALE
1" = 80"
a 4 40
654
or �•
6530 d IQ 10 If
I•
J
P Q`
6520
I
0
Q o
' EXISTING
POND
� v
o p�D�Q
QtF • e �
C?
a PR POSED
ILDING a
F OTPRIW o
• —08-08
F' i EXISTING
a o POND
167
16A ?'o �
EXISTING o
o a [io S
° P1
a a rA
Q. A
a a Q, ; P 2A NPROFlLE PIT
QB P 3 A
o,., � �C � 672.27
`jam% o S 86'37'00" W
Odn•
LEGEND:
PROFILE PIT
0 PERCOLATION TEST HOLE
H LOCATION OF EXPLORATORY PIT AND Figure 1
108 531 A C@ PERCOLATION TEST HOLES
"' [7 5
a
10
LEGEND:
PROFILE PIT
ELEV. = 6525'
WC=12.2
+4=1
-200=75
,
_
•q
�
5
u-
10
NTOPSOIL; organic silty sand, moist, grey -brown.
SILT (ML) clayey, sandy, medium stiff, moist, gray to brown with depth, includes some near surface very silty
sand. Volcanic Ash (SM).
11 GRAVEL (GM) with cobbles, sandy, silty, dense, very moist to wet with depth, brown, rocks are primarily
subrounded.
�1 2" Diameter hand driven liner sample.
Disturbed bulk sample.
_J
Free water level in pit at time of excavation.
NOTES:
1. The Profile Pit was excavated on September 24, 2008 with a Bobcat 435 2HS Mini backhoe.
2. The location of Profile Pit was measured by pacing from features shown on the site plan provided.
3. The Profile Pit elevation was obtained by interpolation between contours on the site plan and the pit log is drawn to
depth.
4. The Profile Pit location and elevation should be considered accurate only to the degree implied by the method used.
5. The lines between materials shown on the Profile Pit log represent the approximate boundaries between material
types and transitions may be gradual.
6. Water level readings shown on the log were made at the time and under the conditions indicated. Fluctuation in water
level may occur with time.
7. Laboratory Testing Results:
WC = Water Content (%)
+4 = Percent retained on the No. 4 sieve
-200 = Percent passing No. 200 sieve
108 531 A
LOG OF EXPLORATORY PIT I Figure 2
HEPWORTH-PAWLAK GEOTECHNICAL, INC.
TABLE 1
PERCOLATION TEST RESULTS
JOB NO. 108 531A
HOLE NO.
HOLE DEPTH
(INCHES)
LENGTH OF
INTERVAL
(MIN)
WATER
DEPTH AT
START OF
INTERVAL
INCHES)
WATER
DEPTH AT
END OF
INTERVAL
INCHES
DROP IN
WATER
LEVEL
(INCHES)
AVERAGE
PERCOLATION
RATE
(MINJINCH)
P-1
24
15
Refilled
10
6
4
15
6
4
2
111/4
8
31/4
8
5 3/4
2 1/4
5 3/4
4 1/2
1 1/4
41/2
31/4
11/4
31/4
2 1/4
1
2 1/4
1 1/4
1
P-2
25
15
Refilled
7 3/4
6
1 3/4
20
6
5
1
7 3/4
6 1/2
1 1/4
6 1/2
5 1/2
1
5 1/2
4 3/4
3/4
4 3/4
4
3/4
4
31/4
3/4
3/4
21/2
3/4
P-3
27
15
Refilled
10
5 3/4
41/4
15
5 3/4
3 1/2
2 1/4
11 1/4
8 3/4
2 1/2
8 3/4
7
1 3/4
7
5 3/4
1 1/4
5 3/4
4 1/2
1 1/4
4 1/2
3 1/2
1
3 1/2
2 1/2
1
Note: Percolation test holes were hand dug in the bottom of backhoe pits and soaked on
September 24, 2008. Percolation tests were conducted on September 25, 2008 in the
sandy silt soils. The average percolation rates were based on the_ last two readings of
each test.
o Elrn � -•
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yg� [ CM/GBOnCBNICAL SEPTIC SYSTEM DESIGN
407 BROOKS LANE
OF AGLE
Engineering Inc. EAGLE COUNTY•
f OCO RADO
.oc uwr nmc ELP.
PREPARED FOR: 1. 5-11-09 RE DESIGN FOR 4 BELP.P.O. Bvz 2657 EEf- 9• CO 26-9lel (970) 926-9088 (aa (970) 926-9089 JOIIIV & CLARA EARDESTY No. DAM MSCRP—Br
The Town
ow of
EvcFle 2nd a Meetings:
11 2nd and 4th Tuesdays
Box 609 • Eagle, Colorado 81631
(970) 328-6354 • Fax 328-5203
November 19, 2008
To: Mayor and Trustees
Fr: William Powell
Re: Request of John and Clara Hardesty for permission to not connect to the Town's wastewater
collection system
John and Clara Hardesty own a 22.8 acre parcel within town limits where they plan to build a single
family home. In an unrelated matter the town recently purchased easements from the Hardesty's for
construction and placement of storm water facilities..
Two attachments help explain the request. First, section 12.36.020 of the Municipal Code requires all
residential and non-residential buildings to connect to the wastewater collection system when such
property_is within 400' of the collection system. In Hardesty's case, the 22 acre parcel is so large that
the collection system exists several places within 400' of the perimeter of the property. However, the
planned building site for their SF home is 1300 lineal feet from the most feasible connection location of
the main. Additionally, the building site is considerably lower that the WW main and multiple lift
stations would need to be installed.
Other attachments are the request from John Hardesty and a letter from Hepworth-Pawlak
Geotechnical, Inc. explaining in more detail the difficulties in connecting to the main.
Staff believes the request to not connect to the town's main is reasonable, considering the individual
circumstances.
Staff Recommendation:
The Town Board of Trustees approves the request of John and Clara Hardesty to not connect
to the town's wastewater collection system for one single family residence only (Building Permit #
3535), and subject to the approval of a private individual sanitary disposal system by the Eagle County
Department of Environmental Health.
Chapter 12.36
WASTEWATER COLLECTION SYSTEM! - REGULATIONS CONCERNING
CONNECTIONS. DISCHARGES ENFORCEMENT AND INSPECTIONS
Sections:
12.36.010
Privies and Septic Tanks Prohibited.
12.36.020
Connection to Collection System Required,
12.36.030
Plant Investment and Connection Fees Required.
12.36.040
Application for Connection to Wastewater Collection System.
12.36.050
Plant Investment and Connection Fee.
12.36,060
Wastewater Connections,
12.36.070
Conformance with Rules, Regulations and Specification Standards,
12.36.080
Discharge of Certain Materials,
12.36.090
Industrial Discharges - Permit Required.
12.36.100
Discharge Permit - Structures Required.
12.36.110
Discharge Permit - Conditions and Reports.
12.36.120
Inspection and Sampling.
12.36.130
Confidentiality of Information.
12.36.140
Enforcement - Dischargers.
12.36.150
.List of Enforcement Actions - Discharges.
12.36.160
Recovery of Costs.
12.36.170
Entry onto Private Property.
12.36.180
Abandonment of Wastewater Service Line,
12.36.190
Interference Prohibited.
12.36.200
Town Responsibility/Property Owner Responsibility.
12.36.210
Malicious or Negligent Damage.
12.36.220
Unpaid Sewer Charges - Lien - Collection.
12.36.010 Privies -and. Septic Tanks Prohibited, Except as otherwise expressly provided,
no person shall maintain, within the Town any privy, privy vault, septic .tank, cesspool or other
facility intended for use for the disposal of wastewater. (Ord. 18-1997 §4 (part), 1997).
12.36.020 Connectionto Collection System Required. A, The Town Board of Trustees
deems it necessary for the protection of the public health that the owners of all residential dwellings,
buildings, orproperties used for human occupancy, employment, recreation, nonresidential or other
purposes, situated within the Town, install at the owner's expense suitable toilet facilities therein,
and connect such facilities directly with the collection system in accordance with the provisions of
this Chapter; provided, that the collection system runs within four hundred feet (400) of the
boundary Eno of such property. Such connection with the collection system shall be. made prior to
12-63 (Eagle 4/01)
issuance of a temporary certificate of occupancy, certificate of occupancy, or within thirty (30) days
after date of written notice given by certified or registered mail to such owners notifying them to
connect their premises with the collection system.
B. There a collection system main does not run within four hundred feet (400') of a
property boundary line within the Town or in any area under the jurisdiction of the Town, the
building drain on suehpropertymaybe connected to aprivate wastewater disposal system complying
with the provisions and recommendations of the Colorado Department of Health upon the
expressed approval of the Board of Trustees.
C. At such time as apublic wastewater collection main runs within four hundred feet
(400') of the property line of anyproperty servedby a private wastewater disposal system, a direct
connection shall be made to the collection system in accordance with the provisions of this Chapter,
and any septic tank, cesspool or similar wastewater disposal facilities shall be abandoned and filled
witlm suitable material, all at the owner's expense.
(Ord. 18-1997 §4 (part), 1997).
12.36.030 Plant Investment and Connection Fees Required. No service installation,
wastewater tap or other connection with the wastewater mains and lines of the Town of Eagle
wastewater collection system shall be made without approval of the superintendent and until all
applicable plant investment and connection fees have been paid and a permit has been issued. It is
unlawful for any person to make any connection to the wastewater collection system contrary to the
provisions of this Title or any other ordinance or regulation of the Town. (Ord. 18-1997 §4 (part),
1997).
12.36.040 Application for Connection to Wastewater Collection System. A. Application
for wastewater collection service shall be made in writing to the Town Cleric and to the
superintendent, on such forms as the Town Manager mayprescribe. Application must be made by
the owner of the property to be served or his duly authorized representative, designating the property,
stating the purpose for which the wastewater collection service may be required, and stating the
number of EQR Units associated with such purpose.
B. No wastewater collection system. connection permit shall be issued nor any
connection commitment approved, except as provided in this Chapter, unless the plant investment
and connection fee is paid, or the connection permit is issued and paid for pursuant to a phasing
agreement, or other agreement with the Town to the contrary.
C. At the time of application for any Town building permit, construction, or for any use
whichwill use the Town's wastewater collection system, tile. owner or authorized representative shall
make application for wastewater collection service. Plant investment and connection fees shall be
assessed at the rate applicable under this Chapter and shall be due and payable at the same time the
building permit is issued.
12-64 (Eagle 4/01)
Laughlin
2152 Camel Mesa Dr.
PO Box 33710
Laghlin, NV89028
Phone: 702-298.2386
'N
November 10, 2008
Board Of Trustees
City of Eagle, Colorado
Attention: Willie Powell
Request is hereby made for a variance from the city code requiring that l
connect to the city sewer system and approve a septic system for my modular
home that I am placing on my property at 407 Brooks Lane.
i am attaching reports from HP Geoteck indicating that the connection
would be both unfeasible from a technical point of view as well as cost
prohibitive.
We have been in touch with the Eagle County environmental department
which concurs and have approved the septic system solution.
Dave Bronn of Bronn Excavating is handling the excavation and sewer,
water, etc. for the project If you have any questions please contact Dave Brown
as he is authorized to handle technical matters for the project at 970 977-0261.
Sincerely,
John Hardesty
Carefree
7802 Primrose Path
PO Box 2422
Carefree, AZ.. 85377
Phone:480-488-1372
Fax: 480-595-0161
Cell: 602-432-2386
c;JH s�AOL.cocg
it<texfco
Villa Vista magica
K 118.9 Tepic - Pto Vailarta
San Francisco, Nayarit Mexico
Phone: 52-311-258-4061 or 62
Fax: 52-311-258-4530
Office: 52-311-258,4621
UINVVU.vILLAvis T ArrAcrcA.CQAA
November 6, 2008
Bronn Excavating
Attn: Dave Bronn
P.O. Box 4867
Eagle, Colorado 81631 lob No. 408 326A
Subject: Individual Sewage Disposal System Feasibility for Proposed Hardesty Residence,
407 Brooks Lane, Eagle, Colorado.
Dear Dave:
As requested, Hepworth-Pawlak Geotechnical, Inc_ has evaluated the feasibility for sewage
disposal at the subject property. Our observations and recommendations for sewage disposal are
presented in this report. We previously conducted percolation testing at the site and presented our
findings in a report dated October 10, 2008, lob No. 108 531A. This supplemental service was
performed in accordance with our agreement for engineering services to you dated September 15,
2008.
Site Conditions: The Hardesty property at 407 Brooks Lane is approximately 22 acres and
located within the Town of Eagle limits. The proposed residence will be located in the
southwestern corner of the property. A majority of the property contains a series of ponds, small
streams, irrigation lines and wetland vegetation. The Eagle River borders the property to the
west.
Feasibility; A profile pit was excavated and percolation testing performed at the subject property
on September 24, 2008 to evaluate the feasibility of an Individual Sewage Disposal System
(ISDS) adjacent to the proposed residence, A copy of the percolation report is provided as an
attachment. The profile pit revealed relatively shallow groundwater at approximately four feet
and will require a mounded ISDS. The location of the mounded absorption field is limited due to
the proximity of the Eagle River, the 100-year flood plain marls and adjacent seater courses on the
property; however, there is adequate space for an ISDS on the property which meets the Eagle
County Land Use Regulations for Individual Sewage Disposal Systems.
Dave Bronn
November 6, 2008
Page 2
It is our opinion that a conforming ISDS in the near vicinity to the residence is the most practical
alternative for selvage disposal for the proposed residence; however, Town of Eagle code requires
that the residence be connected to the Town sanitary sewer system since the property is located
within the Town limits. Given the size of the property and proposed building site location,
connection to the sanitary sewer would be an enormous undertaking and is not practical. There
are several issues dealing with the feasibility of connecting to the sewer main line which is
discussed below:
• The distance bettiveen the proposed residence and sewer main tap -in area would be
approximately 1,300 feet or greater in length. This would require multiple lift stations,
sewage and effluent pumps, electrical power at each lift station, set of control panels for
each pump, and an alarm system for each pump to verify that they are operational.
• The effluent line would have to be a minimum of 40 inches in depth for frost protection.
This depth may need to be increased if the effluent line is located in the roadway as frost
depth may be deeper, The line would have to be properly bedded and sloped at 2%
minimum to drain between liftstations to prevent freezing. The groundwater table was
already identified at approximately 4 feet below ground surface in September and has
potential to be shallower during the high groundwater period.
• The excavation and dewatering issues involved with digging such a trench in shallow
groundwater conditions would be enormous. It will be difficult or impossible to achieve
proper compaction in the native soils in wet conditions and clean aggregate will likely
need to be imported for effluent line support. If proper compaction is not achieved,
settlement could occur and the effluent line could rupture leading to a release of untreated
effluent into the subsoils and groundwater,
• This large excavation would not be good for the surrounding environment, especially the
Eagle River. A large amount of time and effort would need to be put forth during
placement of the sewer line to keep sediment -laden water and r€nloff from entering the
Eagle River and surrounding watershed.
• In addition to the difficulties presented above, the cost of construction of the effluent
distribution system would be substantial and likely considerably more than construction
of a mounded septic system that meets the Eagle County Land Use Regulations for
Job No. 408 326A
Dave Bronn
November 6, 2008
Page 3
Individual Sewage Disposal Systems. This presents an undue hardship to the landowner.
The potential costs include but are not limited to: multiple tanks and lift stations, multiple
pumps, control panels and alarins, piping, electrical supply, approximately 1,300 linear
feet of excavation which will likely total over 320 cubic yards of soil excavation and
import of over 100 cubic yards of clean aggregate for piping support.
Recommendations: The proposed residence is suitable for a septic system which conforms to
the Eagle County Land Use Regulations for an ISDS and would have minimal impacts to the
suiTounding environment. It is our opinion that connecting the proposed residential sewer line to
the sewer main has potential to be problematic and will present an undue burden to the
landowner. There is a significant increase in cost, time, imported materials, mechanical
components, dewatering issues and environmental impacts associated with connecting the
residential sewage to the sewer main.
Limitations: The recommendations submitted in this report are based upon the data obtained
from our field observations, soil characteristics exposed in the profile pit and our experience in
the area. We make no warranty either express or implied. If you have any questions please feel
free to contact us.
Sincerely,
HEPWORTH - PAWLAK GEOTECHNTICAL, INC.
Jason Pascoe
Environmental Specialist
Reviewed by:
JAD
Attachnnent; Percolation Test Report, October 10, 2008, Job No. 108 531A
No. 408 326A
�ILL�' jllS�� MA�IC�
November 10, 2008
Board Of Trustees
City of Eagle, Colorado
Attention: Willie Powell
Gov
QQ /Vt
Request is hereby made for a variance from the city code requiring that I
connect to the city sewer system and approve a septic system for my modular
home that 1 am placing on my property at 407 Brooks Lane.
I am attacking reports from HP Geoteck indicating that the connection
would be both unfeasible from a technical point of view as well as cost
prohibitive.
We have been in touch with the Eagle County environmental department
which concurs and have approved the septic system solution.
Dave Brown of Brown Excavating is handling the excavation and sewer,
water, eta. for the project if you have any questions please contact pave Brown
as he is authorized to handle technical matters for the project at 970 977-0261.
Sincerely,
John Hardesty
Villa Vista Magica: Tel. 311 25 84062 Fax: 311 258 40 60
Carrt. Pto. Vallarta - Tepic Km. 118.9 San Francisco, Nayarit.
www.villavistamagica.com
Villa Vista Magica: Tel. 311 25 84062 Fax: 311 258 40 60
Carrt. Pto. Val lana - Tepic Km. 118.9 San Francisco, Nayarit.
www.villavistamagica.com
RAYMOND P. MERRY, REHS
Director
TO
wN �1�G
November 25, 2008
Mr. David Bronn
Bronn Excavating
P.O. Box 4867
Eagle, CO 81631
Dear Mr. Bronn,
This letter is being provided as per your request regarding whether an Individual Sewage
Disposal System (ISDS) permit from Eagle County could be obtained to allow
construction of a private wastewater system to serve a dwelling located within the Town
of Eagle, specifically 407 Brooks Lane, tax parcel number 21090520001. Eagle County
Assessor's records indicate this property is owned by the Eagle Valley Conservation
Trust in care of Mr. John Hardesty. As it is unusual for a bonafide conservation trust to
allow residential development on a protected parcel of land, I'm assuming that you've
checked to make sure no protective covenants or restrictions exist that would prevent you
from building upon this property.
Two relevant documents were provided to Eagle County Environmental Health by David
Bronn on November 21, 2008 that are germane to this matter. One document is a
November 6, 2008, geotechnical ISDS feasibility assessment from Hepworth-Pawlak
Geotechnical (HP Geotech) which includes a site plan, soil percolation and profile
information; and a November 10, 2008, letter from Mr. Hardesty addressed to the Eagle
Board of Trustees, City of Eagle, which requests variance to City code from having to
connect to the Town of Eagle sewer system. In the body of the letter, the third paragraph
states..."[w]e have been in touch with Eagle County environmental department which
concurs and have approved the septic system solution". This statement is not true, thus
prompting the need for this letter to clarify our position in writing.
Eagle County's regulations regarding ISDS appear in Chapter IV of the Eagle County
Land Use Regulations (ECLUR). Two regulatory criteria apply to your request to obtain
an ISDS permit within the municipality of Eagle. Section 4.01.04, ECLUR is the first
and states that it is the County's "general policy ... to require the use of public sewer
systems whenever feasible and to limit the installation of individual sewage disposal
systems only to areas that are not feasible for public sewers." The other important
regulatory criteria is found in Section 4.03.17, ECLUR stating:... "Permits to constrict,
OLD COURTHOUSE BUILDING, 551 Broadway, P.O. Box 179, Eagle, Colorado 81631-0179
November 25, 2008
David Bronn
Page 2
extend or replace an individual sewage disposal system shall be denied if municipal or
sanitation district sewers exist within 400 feet of the applicant's dwelling, place of
business or institution; AND if the municipality or district agrees to provide service."
(Emphasis added). The later statement makes it clear that it is entirely up to the Town of
Eagle to determine whether or not to "agree" to provide sewer service to the
aforementioned property.
Having reviewed the information provided in the HP Geotech feasibility report, I believe
that connecting the dwelling to the Town of Eagle's sanitary sewer system in the location
proposed on the site plan dated 9-08-08, and included as Figure 1 in the HP Geotech
report, would present an engineering challenge that could be avoided by allowing a
private wastewater system to serve the modular home. Based on the environmental
setting and geotechnical information included in the report, the owner must understand
the necessity of a private wastewater system designed by a Professional Engineer
licensed to practice in the State of Colorado. The engineer responsible must be
experienced in designing on -site wastewater treatment systems that accomplish a high
degree of nitrate nitrogen removal prior to discharge into the Eagle River Valley fill
alluvium from an elevated, pressure -dosed drainfield. The owner shall also enter into an
operational and maintenance contract with the vendor of the treatment technology or a
company authorized to provide this service to assure the system continues to be properly
maintained after construction. A copy of the maintenance agreement will be recorded
with the property deed.
Although there is no formal agreement between the Town of Eagle and Eagle County to
allow Eagle County Environmental Health the authority to issue ISDS permits within
town boundaries, should the Town of Eagle grant a variance as requested by Mr.
Hardesty, Eagle County will assume the Town of Eagle is also granting permission for
Eagle County Environmental Health to issue said ISDS permit.
Should you have any further questions regarding this letter, please contact me.
Sincerely,
P. Merry RES
Raymond y, __ _ __
Director
Cc: Willy Powell, Manager, Town of Eagle
John Hardesty, Villa Vista Magica
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