HomeMy WebLinkAboutApplication- PermitQeplace
GARFIELD COUNTY BUILDING AND SANITATION DEPARTMENT
108 Eighth Street, Suite 401 4 5 0 2
Glenwood Springs, Colorado 81601 Permit
Phone (970) 945-8212 Assessor's Parcel No.
INDIVIDUAL SEWAGE DISPOSAL PERMIT
PROPERTY r'�12
Owner's Name r=1 -1c 1 V O a Present Address 1,9)1- lad. Phone (..O
System Location 24-L0Q 101 .! h r V LP -iro{ 1,e/r L�1
N-3 Legal Description of Assessor's Parcel No. 2 1 ' 5 , co ' N-3
This does not constitute
a building or use permit.
SYSTEM DESIGN
Septic Tank Capacity (gallon) Other
Percolation Rate (minutes/inch) Number of Bedrooms (or other)
Required Absorption Area - See Attached
Special Setback Requirements:
Date Inspector
FINAL SYSTEM INSPECTION AND APPROVAL (as installed)
Call for Inspection (24 hours notice) Before Covering Installation
System Installer 4i 55/17,CD 14/57;i- Z6- Rne E-476-
/V2 �dx 1' DR7-s7/77P
Septic Tank Capacity
Septic Tank Manufacturer or Trade Name
Septic Tank Access within 8" of surface
Absorption Area
Absorption Area Type and/or Manufacturer or Trade Name
Adequate compliance with County and State regulations/requirements
Other
Date Inspector
RETAIN WITH RECEIPT RECORDS AT CONSTRUCTION SITE
CONDITIONS:
1, 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. Connection 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 1, Petty Offense ($500.00 fine - 6 months in jail or both).
White - APPLICANT Yellow - DEPARTMENT
GARFIELD COUNTY SEPTIC PERMIT APPLICATION
108 8t' Street, Suite 401, Glenwood Springs, Co 81601
Phone: 970-945-82121 Fax: 970-384-34701 Inspection Line: 970-384-5003
wwv,garfield-countv.com
i
Fee:
Parcel No:'this iniormalion is available al the assessors office 91x915-9134)
1 X 33 blo0013
2
Septic Permit 4:
4502-
Job Address: fan address has not been assigned, pease provide Cr, Ffwy or Street Name & City) or and legal description
Li6i 4419 H611'i ( . u). S. --t—cRrLLg__.# t,
3
APPR 6 VAL DATE
Lot Size; ! c, = , �Lot No: Block No; Subdi Exemption:
K—
4
Owner: (property owner)
A0ta _S. -1 ut~rL1
Mailing Address
O 12{, 13 9 I' 4 .
Ph:
91/.5-- lOOK I
Alt Ph:
5
Contr cior: n 1u 6.4. CeEaHSI
DRm ttii� - EncAdpriary
Mailing Address
Oki< F1.30 5;<r1Ca Sii
Ph•
$`-iS' - 4122(,
Alt Ph:
6
Engineer. l.� C
PN..:- PAteiF Yep _ 01.AIS gNrc-
Mailing Address
-5DZ inn i0 Si A3 cAP47�ti0AL,:
Ph:
�`� �031f
Alt Ph:
7
PERMIT REQUESt FOR: i---). New Installation 6fe ll( ( ) Alteration ( ) Repair
C• l(
8
WASTE TYPE:
( )Other
Dwelling ( }Transient Use j'.ommercial or industrial ( )Non- Domestic wastes
- Describe
9
BUILDING OR SERVICE TYPE:
Tkff , K --
Number of bedrooms Garbage Grinder ( )Yes V4No
10
SOURCE & TYPE OF WATER SUPPLY: Vi..)WELL ( )SPRING ( )STREAM OR CREEK ( )CISTERN
If supplied by COMMUNITY WATER, give name of supplier:
11
DISTANCE TO NEAREST COMMUNITY SEWER SYSTEM:
Was an effort made to connect to the Community System?
I m . le
No
YOUR INDIVIDUAL SEWAGE DISPOSAL SYSTEM PERMIT WILL NOT BE ISSUED WITH OUT A SITE PLAN
12
GROUND CONDITIONS:
Depth to 1'Ground Water Table 10 Fr oR¶Rearee,PercentGround Slope Jes-' +JAN 8 ea
I
13
TYPE OF INDIVIDUAL SEWAGE DISPOSAL SYSTEM
ti -)Septic Tank ( )Aeration Plant
( )Recycling, Potable Use ( }Recycling, other
( )Other- Describe
FINAL DISPOSAL BY:
(y.)Absorption trench, Bed or Pit ( )Underground
( )Wastewater pond ( )other-
(ISDS) PROPOSED:
( )Vault ( )Vault Privy ( }Composting Toilet
use ( )Pit Privy ( }Incineration Toilet ( }Chemical Toilet
_
Dispersal ( )Ahove Ground Dispersal ( )Evapotranspiration ( }Sand filter
Describe
14
15
Will effluent be discharged directly Into waters of the state? ( )YES (y)NO
16
PERCOLATION TEST RESULT:
Name, address & telephone of
Name, address & telephone of
(lobe completed by Registered Professional Engineer, lithe Engineer does the Percolation Test)
Minutes `6. per inch in hole No.1 Minutes c7 per inch in hole
No.3
No.
Minutes ` f per inch in hole No Ivi,nutes per inch in hole
RPE who made soil
RPE responsible
absorption test: AUL. A Le
9 Seri r:s +l •
for design of the system: Au.- alk 1.-Q
37
Applicant acknowledges that
the local health department
issuance of the permit is subject
reports submit' d he with
and are design to a rel{
understand that (lig sif
and legal action r
the
to
and
d
at
as
completeness of the application is conditional upon such further ma atory and additional test and reports as may be required by
be made and furnished by the applicant or by the local health department for purposed of the evaluation of the application, and the
to such terms and conditions as deemed necessary to insure compliance with rules and regulations made, information and
equired to be submitted by the applicant are or will be represented to be true and correct to the best of my knowledge and belief
o y the local department of health in evaluating the same for purposes of issuing the permit applied for herein. I further
or misrepresentation may result in the denial of the application or revocation of any permit granted based upon said application
vided by law.
ctiZ2-f or
OWNERS SIGNA R
DATE
STAFF USE ONLY
Permit Fee:Perk
.151). cyp.
Fee:
Total fees: .._.
0_,
Building Permit 4:
Septic Permit 4:
4502-
Tsue Date:
q DI 08
Buildin l ng F ept
5-24 jU
APPR 6 VAL DATE
011-.1E5-1 (D3
50r—
Sep 29 2008 9:1319M SOPRIS ENGINEERING LLC
970 704 0313
p.1
FAX Transmittal
To:
eomaan :
Fax#
Bate:
Total Pees:
SE Proles' No.
MOSSaget
Julie Taylor
Garfield County Building Department
384 3470
9-29-08
3
23136.01
Paul Rutledge
Attached is the, 46419 Highway 6 & 24, OWS supplemental
information letter for the David Turtle property, submitted in
support of kis replacement OWS perrnit application. if you have
any questions please call me.
Cc: David Turtle 945 7408
0 Original not to follow
0 Original to follow by mail
4 Original to be delivered by messenger
4 Original to be picked up
:RECEIVED
SEP 2 9 2008
itLD COUNTY
BUILDING & PLANNING
502 main street • suite A3 • carbandale, CO 01623 • (970) 704-0311 • fax (970) 704-0313
S0PH1S EHCINEERINC • LLC
civil consultants
Sep 29 2008 9:13RM S0PR1S ENGINEERING LLC 970 704 0313 p.2
September 29, 2008
David Turtle
726 County Road 137
Glenwood Springs, CO 81601
RE: Turtle Property — Proposed Replacement OWS, 46419 Highway 6,
Garfield County, CO
SE Job No. 23136.01
Dear David:
Pursuant to your request, attached herewith is a letter/report presenting our findings in regard to the
feasibility and design for an Onsite Wastewater System (OWS) to serve the easternmost residence on the
site. This design is based on our evaluation of the site conditions for use in supporting your application to
Garfield County. Our recommendations are in accordance with Garfield County and the State of Colorado
1SDS Regulations. We have reviewed the previous as -built site information, conducted a site visit,
formulated an OWS design and created a site plan with construction details as part of our scope of work.
Conclusions
Based on our findings we believe that the design and installation of an approved OWS system is feasible in
accordance with the Regulations of Garfield County and the State of Colorado. It is our understanding
that the system will serve the current needs of the existing small residential housing unit on the eastern
most portion of the site. This unit was not included in the previous OWS replacement for the other units
on site. The existing ISDS system will be abandoned in place. We recommend that a new 1000 -gallon
septic tank be installed that will discharge effluent to a 260 square foot enhanced treatment/infiltration bed
system utilizing Elgen 1n Drains over 24 inches of select filter sand. The treatment/infiltration system can
be installed in natural soils with a 24 -inch course of concrete sand and will be located down gradient of the
existing residential unit, as delineated on the attached plan. The system will meet all required setbacks and
be installed within the general boundaries indicated on the plan. Our design is outlined on the previous
submitted plan.
Existing Site Conditl�ns,
The site has a gentle slope (5%-12%) toward the south toward the Colorado River. The site is covered
with grasses, with shrubs and some orchard trees. Domestie water is supplied by an onsite well. There are
no wells within 15C' of the general vicinity of the proposed treatment/infiltration field.
Subsurface Conditions
A subsurface investigation and percolation test was conducted on September 14, 2008 by Sopris
Engineering, LLC (SE). The results are attached to this letter. The subsoil encountered at the site consists
of 1 to % foot of topsoil overlying slightly silty sand with gravels. Based on previous observed
excavations on site groundwater is not expected to exist within 10 feet of the surface at any time of year.
I 502 Main Street ■ Suite A3 • Carbondale, CO 81623 • (970) 704-0311' Fax (970 704.0313
SOPRISENOINEERING•LLC
Civil consultants
Sep 29 20011 9:1319M SOPRIS ENGINEERING LLC
970 704 0313 p.3
David Turtle
SE Job No. 23136.01
September 29, 2008
Page 2
Percolation testing utilized three test holes yielded similar absorption rates. The fastest measured rate was
5 minutes per inch and the slowest measured rate was 10 minutes per inch. The average percolation rate is
7 minutes per inch and is suitable for a conventional absorption system. A rate of 10.minutes per inch is
used for the system design. See attached test results.
Construction and Inspections
Prior to construction of the permitted system the engineer should be contacted well in advance to provide
adequate time to discuss the system components with the contractor, answer questions, resolve any conflict
issues and schedule inspection site visits based on construction progress. We highly recommend that the
contractor/installer contact the engineer to discuss the OWS system, conduct a pre construction meeting,
and discuss a construction schedule prior to construction. County Regulations require that the Design
Engineers of record perform site inspections of the permitted system during construction and provide "As -
Built" documentation of the installed system to the County after construction is complete.
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 OWS. 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
Paul E. Rutledge
Design Engineer
Sep PS P009 9:13AM SOPRIS ENGINEERING LLE
970 70.4 0313 p . 4
SOPRIS ENGINEERING, LLC.
SOIL PERCOLATION TEST RESULTS
JOB NAME: David Turtle Property, Eastern Residence
JOB NUMBER: 23136.01
DATE OF TEST: 4 -Sep -08
HOLE NO.
HOLE DEPTH—
in
TIME
INTERVAL
min
WATER
INTERVAL
BEGIN
in
DEPTH
INTERVAL
END
in
WATER LEVEL
LEVEL
DROP
in
PERCOLATION
RATE
min/in
AVERAGE
PERCOLATON
RATE
min/in a
1
20
5
7112
11
3 8/16
1
5
11
13
__
2
3
10_
13
13 7/8
14/16
11
8
13 7/8
14 112
10118
13
9
water added
8
7 5/8
10
2 6/16
3
7
10
111/4
1 4/16
6
6
111/4
113/4
8116
12
5
11 3/4
12 1(4
_
8/16
10
--5
12 1/4
12 3/4
8/16
10
--
6
12314
13318
10/16
_
10
10
2
22
5
11
133/4
212/16
2
-
9
_
13 3/4
16
2 4/16
4
water added
�-�
-�
5
5
--- 11
11 314
11 3(4
131/8
__
__ 12/16
1 6/16
7 --
--
5
13 1/8
_
- 14 3/4
1 10116
4
3 --
5
14314
16
1 4/16
.- _
4
5
16
��_ 17 1(4
1 4/16
---•
4
4
water added
5
7
- 81/4
1 4/16
4 .
5
8 1/4
9 3/8__
1 2/16
_-_
4
5
9 3/8
10 1/4
14/16
6 --
5
10114
----- 11 1/8
14/16
---
6
5
3
326
23 118
28 3(4
5 10/16
1
......
5
28 3/4
_
30 3(4
_
2
3
water added
---
7
27 114
-_.---29 1/4
2
4
---
8
29 1/4
30 518
_
1 6/16
---'_
6
5
water added
6
27 1/8
28 114
_
1 2/16
5
_
'5
28 114
29
12116
7
---
-- ••
5
5
_ 29
29 3/4
_
•--- 29 3/4_ -----
.__-. 30 3/8 _-----
-- 12/16
10/1t3
__
_.-.._____--
_
7
8 ________
5
- 30 3(8
31
-- 10/18
- 8
8
Combined Average
7
Note: Percolation test holes were dug by client, inspected and pre soaked by Sopris Engineering 16 hours prior
to testing. Percolation test were conducted on September 4, 2007. The average pecolation rates in each hole
were based on the last three readings of each test. The average percolation rate for the field.
is based or the combined average of the average percolation rate of each hole.
EXISTING CABIN
EDROOM
CUPANTS
1
1
J
,I
ilulttplowitinge
1414
Ilam,
EXISTING ISDS COMPONENTS
DWELLING
MIN
116
MIN
24"
4"PERFORATED
PVC (TYP)
12" M
24".
IN
24" (TYPE A}
FILTER FABRIC (TYP)
DO NOT BLOCK
HOLES IN PIP
24"
6"
CLEAN BACKE LI
Kim am Ai
INSTALLER SHALL INSTALL A 24" LAYER OF WASHED
MEDIUM TO COURSE CONCRETE SAND OR EQUIV.
SEE ELJEN IN --DRAIN DESIGN AND INSTALLATION MANUAL FOR DETAILS
kb
TYPICAL CROSS SECTION
6' MIN.
•
SCHEDULE 40 PVC OR 4` SDR -35 PIPE
WITH TIGHT JOINTS 10' MIN
2' SLOPE, 1/4" PER FOOT
20' MIN.
NOT TO SCALE
A00£SS
ex�s�Nc
D/TC'H
FINISH GRADE
PROPOERTY UNE
TYPE A UNITS ARE 24"x48"X7'
_6" MIN.
SEE PLAN VIEW FOR NUMBER OF UNITS ter,
FINISH GRADE
4" PVC WITH TIGHT JUTS
1000 GAL
CONCRETE SEPTIC TANK
MAX. LIQUID DEPTH 5'-O"
•
'1=-1IIIII
19: SLOPE. 1/8" PER DOT
INV.
Illlnl`I
VERTICAL VELOCITY TEE
TO DISTRIBUTION BOX
DISTRIBUTION BOX
24" FILTER SAND BELOW IN -DRAIN DINTS-/
TYPICAL SECTION OF PROPOSED ELJEN IN -GRAIN SYSTEM
eye
4 PERFORATED PVC
NATIVE SOIL
+ THE IN -DRAIN UNITS
SHALL BE INSTALLED
LEVEL END TO END
WITH THE PAINTED STRIP
FACING UP.
1_==-1 I
III -111 -
NOT TO SCALE
N.T.S.
c
NO -WA
MAHOUT
4' SEWAGE LI
FROM HOUSE
1 0 2% SLOPE (TVP.)
14' EFFLUENT UNE TO D -BOX
4 DISTR 11ON LINES
CALL BEFORE YOU DIG
zir
EXISTING HOUSE TRAILER
3 BEDROOM
5 OCCUPANTS
VEGATATION
TOPSOIL LAYER
MIN. 5"
AERATED SOIL ZONE
FILL LAYER OF
NATIVE SOIL
FILTER FABRIC
(see section detail)
PERFORATED PVC
DISTRIBUTION PIPE
IN -DRAIN UNIT
STRAPPING
CUSPATED PLASTIC CORE
NON -WOVEN FILTER FABRI
24" FILTER SAND
USE CLEAN CONCRETE
SAND
NATIVE SOIL
NSPECI1ON
PORT (TYP.)
IN- DRAIN SYSTEM
ROPERTY UNE
000 -GALLON DUAL COMPARTMENT
SEPTIC TANK W/ EFFLUENT FILTER.
INSTALL NINIUMUM 24" DIAMETER
RISERS OVER SEPTIC TANK ACCESS
OPENINGS FOR ACCESS TO TANK
CHAMBERS. ALL RISERS TO HAVE UDS
AT THE SURFACE TANK CONNECTIONS
AND RISER TO BE WATERTIGHT.
DISTRIBUTION BOX W/ BAFFLE AT THE
INLET. USE TUF-UTE OR ALTERNATE
TO BE APPROVED BY ENGINEER.
INSTALL OVER MIN. 8" AGGREGATE
BASE COURSE OVER 12' COMPACTED
SUBGRADE. UD AT SURFACE
USE 21 ELEN IN -DRAIN UNITS IN 3 ROWS OF 7.
LOCATION OF BED MAY BE ADJUSTED AS LONG AS A
TOTAL OF 260 SQ. FT. OF AREA IS PROVIDED.
LOCATION OF BED TO BE WITHIN THE GENERAL
LOCATION SHOWN AND MEET ALL REQUIRED SETBACK
I REQUIREMENTS. THE SYSTEM SHALL BE PLUMBED FOR
EQUAL DISTRIBUTION. THE IN -DRAIN UNITS SHALL BE
INSTALLED AT LEVEL GRADE OVER 24" OF SELECT
FILTER SAND.
4"DIA. PERFORATED DISTRIBUTION LATERAL
PIPE INSTALLED AT THE TOP CENTER OF THE
IN -DRAIN UNITS RUN THE FULL LENGTH OF
THE BED. ORIENT PERFORATIONS DOWNWARD
AT 5 AND 7 O'CLOCK. INSTALL INSPECTION
PORT RISERS WITH CAP AT THE SURFACE ON
ENDS OF EACH ROWS DISTRIBUT1ON PIPES.
LAYOUT OF BED AND SOIL
CONDITIONS TO BE APPROVED BY
THE ENGINEER PRIOR TO
INSTALLATION OF COMPONENTS,
DISPERSAL
■
VARIES
12" MIN.
1
4"
7"
24"
INSTALLATION NOTES
CALL (nun' NOTIFICATION
CENTER OF COLORADO
1-800--922-1987
IMO W. CCEMX ATE., 311E B-310
LAKEKOD. MOM* DO2i5
CALL 2-I1USESS RAYS M AWMtCE
WORE 'EpiGLADE, OR E%1[�IYNE
EOR 1HE MITI L iC OF i71OElUi IOLI D
hESSI R imams
1. THE BED SHALL BE EXCAVATED LEVEL.
INSTALL FILTER SAND AND HYDRO COMPACT
REPLACE ANY UNSUITABLE SOIL OR BOULDERS
SAND.
2. THE WIDTH OF THE EXCAVATION SHALL BE
LIMITED TO PLACE THE IN -DRAIN UNITS AND
SAND. MAINTAIN 12" OF SAND BETWEEN RONS
AND 6" AROUND PERIMETER OF IN -DRAIN WATS.
3. BOTTOM OF THE TRENCH SHALL BE FREE OF
ORGANIC MATERIAL AND ROCKS OVER 2.5 LACHES
IN DIAMETER. THE BOTTOM OF THE TRENCH
SHALL BE SCARIFIED OR RAKED, REPLACE SOIL OR
ROCKS AS NEEDED.
4. THE IN -DRAIN UNITS SHALL BE INSTALLED
LEVEL END TO END WITH THE PAINTED STFIP
FACING UP.
5. INSTALL PERFORATED PIPE OVER THE TOP DF
THE IN -DRAIN UNITS ON CENTER AND SECJRE
WITH ONE ELJEN CLAMP PER UNIT. ORIENT
PERFORATIONS DOWNWARD AT 5 & 7 O'CUCK.
6. INSTALL FILTER FABRIC OVER PIPE AND TO'
OF IN -DRAINS AND DRAPE DOWN THE SIDES
TO THE TOP OF THE SAND LAYER. SECUFE
FABRIC WITH CLEAN EXCAVATED FILL MATRIAL.
7. BACKFILL IN -DRAIN SYSTEM WITH SUITABLE
EXCAVATED FILL FREE OF ROCKS OVER 2.5
INCHES IN DIAMETER. AVOID EXCESSIVE
COMPACTION OF FILL AVOID COMPACTION
DAMAGE TO SYSTEM WITH EXCAVATION EQUIPMENT
8. FINISH GRADE TO PREVENT SURFACE
PONDING. REVEGATATE WITH APPROPRIATt
GROUND COVER AND PROTECT FROM EROSON.
r '
ABSORPTION/TREATMENT EED
OWS SYSTEM NOTES
1 ALL MATERIALS AND INSTALLATION SHALL CONFORM TO STATE AND
COUTNY INDIVIDUAL SEWAGE DISPOSAL SYSTEM (ISDS) REGULATIONS.
2. IT IS THE RESPONSIBILITY OF THE CONTRACTOR TO CONTACT ALL
UTILITY COMPANIES FOR FIELD LOCATIONS OF UTILITIES PRIOR TO
CONSTRUCTION AND EXCAVATION.
3. ALL SEWER LINES TO BE SDR -35 BEDDED IN CLASS 6. SDR -26 BEDDED IN
SCREENED NATIVE OR SCHEDULE 40 P.V.C. PIPE BEDDED IN SCREENED NATIVE
MATERIAL UNLESS NOTED OTHERWISE.
4. INSTALL A TWO-WAY CLEAN OUT ON THE SERVICE LINE FROM THE HOUSE.
5. THE CONTRACTOR SHALL ENSURE ALL SEWER LINES AND SEPTIC TANKS ARE
WATERTIGHT. ANY POTENTIAL PLUMBING LEAKS SHALL BE REPAIRED TO AVOID
EXCESSIVE WATER ENTERING THE SEPTIC SYSTEM.
6. THE SEPTIC TANK SHALL BE INSTALLED LEVEL ON COMPACTED EARTH. INSTALL
WATERTIGHT RISERS AS NECESSARY TO BRING ALL REQUIRED ACCESS
POINTS TO THE FINISHED SURFACE GRADE.
7. A SANITARY BAFFLE TEE IS REQUIRED ON THE SEPTIC TANK INLET AND OUTLET.
INSTALL THE INLET AND OUTLET TEES PLUMB AND IN A POSITION TO ALLOW EASY
INSPECTION AND MAINTAINANCE OF TANK FROM THE TANK RISERS.
8. WE RECOMMEND THE INSTALLATION QF A 4" EFFLUENT FILTER CONTAINED IN THE
4" BAFFLE OUTLET TEE OF THE SEPTIC TANK. THE FILTER SHOULD BE INSPECTED
EVERY SIX MONTHS. D -{E EFFLUENT FILTER SHALL BE MAINTAINED AND CLEANED
WHEN THE TANK 15 PERIODICALLY PUMPED OR AS NECCESSARY. INSTALL A
SUITABLE EXTENSION ON THE FILTER WITH A HANDLE TO BE WITHIN 6" BELOW THE
ACCESS UD.
9.
THE TREATMENT BED MUST BE MARKED AND
FROM VEHICULAR AND LIVESTOCK TRAFFIC.
THE ENTIRE TREATMENT BED SURFACE MUST
GROUND COVER.
PROTECTED TO PREVENT DAMAGE
BE SODDED OR RE -VEGETATED WITH
THE TREATMENT BED SURFACE MUST BE CROWNED TO DIVERT SURFACE DRAINAGE
AWAY FROM THE BED.
THE DIMENSIONS SHOWN ON THE PLAN INDICATE MINIMUM AREA AND SEPARATION
DISTANCES FOR THE OWS COMPONENTS.
THE BED SHALL BE LEVEL WITH DISTRIBUTION PIPES INSTALLED FOR
EQUAL DISTRIBUTION.
THE BED SHALL BE OVER EXCAVATED TO ALLOW PLACEMENT OF A MINIMUM OF
THE SAND TREATMENT LAYER. THE BOTTOM SURFACE AND SIDEWALLS OF THE
TRENCH TO BE SCARIFIED AND RAKED AS NECCESSARY PRIOR TO PLACEMENT OF
THE SCREENED ROCK.
15. THE TREATMENT BED SHALL BE CONSTRUCTED WITH THE IN -DRAINS UNITS PLACED
WITH A MINIMUM OF 24" OF CONCRETE SAND BELOW AND ALONG THE SIDES OF
THE UNITS. THE IN -DRAINS, SAND AND DISTRIBUTION PIPES SHALL BE PLACED
IN A FILTER FABRIC ENVELOPE OVERLYING THE SCREENED ROCK LAYER.
16. THE MINIMUM COVER OVER THE TOP OF THE 1N -DRAIN UNITS SHALL BE 10 INCHES
NOT TO EXCEED 24". THE TRENCH BOTTOM SURFACE AND SIDEWALLS SHALL BE
SCARIFIED AND RACKED IF SMEARING OCCURS.
17. THE PERFORATED DISTRIBUTION PIPE, SAND AND THE IN -DRAIN UNITS SHALL BE
ENVELOPED WITH FILTER FABRIC. TO THE BOTTOM OF THE
BED. THE TRENCH IN -DRAIN UNITS WILL BE BACKFILLED TO THE SURFACE= WITH
EXCAVATED MATERIAL VOID OF ROCKS. THE BACKFILL MATERIAL SHALL NOT
EXCEED 3" DIAMETER. A MINIMUM 4" DEPTH OF TOPSOIL IS TO BE PLACED ABOVE
THE BACKFILL TO THE FINISH SURFACE GRADE.
18. VERTICAL INSPECTION PORTS SHALL BE INSTALLED ON THE PERFORATED
DISTRIBUTION PIPE AT THE TERMINAL ENDS OF EACH TRENCH.
19. ALL INSTALLATION OF IN -DRAIN UNITS SHALL BE IN CONFORMANCE 1MTH THE
MANUFACTURES INSTALLATION INSTRUCTIONS.
DISTRIBUTION SYSTEM NOTES:
1. EFFLUENT FROM THE SEPTIC TANK WILL DISCHARGE TO A DISTRIBUTION BOX.
EFFLUENT WILL BE EQUALLY DISTRIBUTED TO THE TREATMENT BED VIA
INDIVIDUAL 4" DISTRIBUTION LINES.
2. WE RECOMMEND THE INSTALLATION OF AN ORENCO SYSTEMS 4" EFFLUENT
FILTER CONTAINED IN THE TANKS 4" OUTLET TEE. THE FILTER SHOULD BE
INSPECTED EVERY SIX MONTHS. MAINTENANCE SHALL INCLUDE CLEANING THE
FILTER EVERY SIX MONTHS MINIMUM AND AFTER PERIODIC PUMPING OF THE TANK.
THE DISTRIBUTION SYSTEM SHALL DISTRIBUTE FLOW EVENLY TO EACH 1N -DRAIN
3. ROW IN THE BED. THE MINIMUM SLOPE OF THE DISCHARGE LINE FROM THE TANK
TO THE DISTRIBUTION BOX SHALL SHALL BE INSTALLED AT A MINIMUM % SLOPE.
THE INDIVIDUAL DISTRIBUTION LINES SHALL BE INSTALLED AT A MINIMUM OF 2
SLOPE. ALL DISTRIBUTION PIPING. CONNECTIONS AND FITTINGS SHALL BE
WATERTIGHT AND INSTALLED TO INSURE EQUAL DISTRIBUIIONTHROUGH THE
SYSTEM.
Design Calculations
The design flow is calculated as follows:
Single family 3 -bedroom population 0 2 person/bedroom = 6 persons.
From the State 1. S. D. 5. Regulations:
Max. Design flow (Qd) = # of people x (avg_ flow) x 1.5 gal/person/day.
Gallons per day per person for the subject house = 75 gal/person/day
Design flow Qd = 675 gpd
Septic Tank Design
V = 675 gal/day * 1.25 days = 844 gallons.
Use al000 gollon, dual comportment septic tank.
Percolation testing was performed by Sopris Engineering in the location of the
proposed treatment absorption field. The average percolation rate from the testing of
3 holes was approximately 8 minutes per inch. A rate of 10 minutes per inch is used
for design.
Absorption/Infiltration Area Design
Average percolation rate of 1O minutes per inch.
Standard absorption area equation yields:
A (sf) = (Od ■(t) %: where A = Area;
5 t = time in minutes per inch=56mpi
Od = flow (gal/day) = 540 gpd
A = = 54Q •(10) Y = 427 so, ft
5
Elgen In-Drain/Sand fllterTreatment System Design
Apply sizing credit reduction of 5.4 SF equivalent absorption area per L.F.
A(credit reduction)= A / 5.4 = 427 / 5.4 = 79 L.F.
Initial surface area equal to 79 L.F. x 2 FT = 158 S.F. provided
Number of EI jen In -Drain units required equals 79 L.F. / 4 FT = 20 units.
Use 21 EI jen In -Drain units over approximately 260 S.F. of select sand 24" deep.
The total infiltrative surface area is 260 S.F. horizontal (area of 29' x 9' sand bed)
plus approximately 188 sidewall area (perimeter area of 24" deep sand layer)
NO.
DATE
REVISION
SoPR S ENGINEERING. LLC.
CIVIL CONSULTANTSI
502 MAIN STREET, SUITE A3
CARBONDALE. CO 81623
(970) 704-0311
46419 HIGHWAY 6 & 24
_BY
GARFIELD COUNTY, COLORADO
DAVID TURTLE PROPERTY
TURTLE OWS SYSTEM
SITE PLAN AND DETAILS
DES_ PER
CK YTN
FILE NO. SHEET 1
DR. PEI? DATE 9/17/05 23136.01 OF 1