HomeMy WebLinkAboutpitkin.eh.264504301013 (2000)Ashen/Pitkin Environmental Health Department
Permit for an Individual Sewage Disposal System
130 S. Galena St. Aspen, Colorado 81611
Phone 970-920-5070 / FAX 970-920-5074
Permit # 00021 Parcel ID # 2645-043-01-013
Type of permit New( ) Repair( x ) Addition to House( x )
Name of Owner George and Jamie Mahaffey
Street Address 271 Little Elk Creek Ave
Property legal description Lot 10, Block 3, Filing 2, Little Elk Creek Subdivision
Size of lot 2.17 acres Total square footage of the house 2716
Water source Little Eik Creek Water system
# of bedrooms in house 3 # of offices, lofts & similar sized rooms in house 1
Caretaker unit No Total square footage of the caretaker unit
# of bedrooms in caretakE!r unit # of offices, lofts & similar sized rooms in caretaker unit
Designed for what # roorrs (list) 4
Permit information
Designed by McLaughlin Engineers, Dean Derosier
Mailing Address 111 P AABC, Aspen, CO 81611
Perc rate mound Profile hole depth n/a Depth to groundwater or bedrock 1 foot to groundwater
Septic tank capacity 1750 Absorption area 1200 square feet (24x50)
Comments
Septic permit approved per compliance with the engineer design and specifications dated August 10, 1999. Any
changes must be approved by this department and the design engineer prior to them being made.
Minimum horizontal distances between components of the system and physical features shall conform to the Pitkin
County ISDS regulations.
The system will consist of the existing 750 gallon tank with an additional 1000 gallon tank and a 750 gallon dosing
tank. Due to high ground water, the field will be a mound system with approx 2.75 ft of sand fill and 9 inches of
gravel to bring the system a minimum of 4 feet above groundwater. Sand and gravel must meet engineer's specs.
This department does not endorse any brand of products.
The engineer must do a final inspection of the installation and submit an as -built letter to this department. This
department must also be called for an inspection with a minimum of 48 hours advanced notice.
Permit approved by: ((�( iG�' (f-5 L nL: Date: '511E, -loo
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:
1-1C) o vvt,6ukr
4 ) -11 by �e,.% ►� ��
1. .
ASPEN/P"-,KIN ENVIRONMENTAL HEALTH DEPARTMENT
APPLICA110 FOR INDIVIDUAL SEWAGE DISP( \L SYSTEM
130 S. Galena St., Aspen Colorado 816 1
Phone 970-920-5070/Fax 970-920-5039
Primary Contact Person (all communication regarding this permit will go through this person)
Name
Company
Contact Mailing Address <� �N !+ S
Business Phone : -Gell Phone
'^ ^ � � Fax
Parcel ID # (available from assessor's office
at 920-5160 or at www.aspen.com/assessor/)
Street address of property o?7/
Legal Description: Lot 1 D Block
3 Filing Subdivision i -f-1 �� J L
Size of lot: c�• I -1 acres. Type of proposed structure:
Total square feet of house Q- # of bedrooms in house
# of offices, lofts & similar sized rooms in house
Size of bldg. envelope:
-77
Caretaker Unit: Attached ( ) Detached ( ) Total area(sq. ft.) of caretaker unit
+1 of harirnnms in (nrP..takP_r unit # of offices, lofts and similar size rooms of caretaker unit
Permit Is for: New Horne ( ) Repair due to failure (,}{) Remodel/Addition ( ) Emergency use ( )
Water: Private well ( ) Spring { ) Stream 0) Community/Public Water System;k)
If community system: Name of system,(,rW IC EiL Lne. c �/,Ad /rte 5/rrrr
The fee for a ISDS application is $330 for a permit that takes 6 hours or less for the department to approve. If approval takes
longer than 6 hours, a rate of $55 per hour will be charged. The maximum fee is $1000. The basic fee of $330 is due at the time
of application. The remainder, if any, will be due in two stages: first, at the time of issuance of the ISDS permit: second, before
final approval of the ISDS permit.
Application for an individual sewage disposal system is hereby submitted. I hereby certify that the above information is true and
accurate and that I have provided true and accurate information on locations of all existing and proposed wells, contour
intervals, buildings, property lines, ditches, slopes, waterlines, springs, suction or irrigation lines, drinking water cisterns, drain
tiles, irrigation ditches, lakes, water courses, streams, floodpiains, dry gulches, and existing septic systems. I hereby certify
that any such features not shown on attached site map are not present. Issuance of the permit does not imply the approval of
any other permit required for construction pursuant to Pitkin County codes. No construction may be undertaken until all
approvals and permits have been obtained.
The Aspen/Pitkin Environmental Health Department, Pitkin County and employees of these agencies will be held harmless
should the individual sewage disposal system fail or malfunction. The permit to construct is issued on information submitted by
the applicant or his/her representatives. The owner assumes full responsibility in case of failure of the system.
Signature of apl
Received by
Date
Date `� ��
C -pen / Pitkin Environmental Health Departo
Contact Log Sheet
�Address:
I
i
Comments• to be Taken
�.
MW
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Sent By: MCLAUGHLIN WATER ENGINEERS; 970 925 1974; Jan -15-01 11:03AM; Page 8/8
MNK1v1cLAUG11L1N WATER E;N'GFNTT:RS, ltd.
111 1' AA11C ASPEN, C 01,0RADu 81611
970-925-1920 970-925-1974 tax mweiupcnii[ rot nei
MEMORANDUM
Date. January 15, 2QQ1
To; Pitkin County Environmental Health,
From: Dean Derosier; McLaughlin Water Engineers, Ltd.
RR- Mahaffey Septic System Final • 99-419.01 - 271 Little Elk Creek Ave
The septic system for the Mahaffey Home at 271 Little Elk Creek Ave has been
installed by Dreager Excavation and placed into service. After Inspection of
the system by MWE, it was found to be installed according to MWE's design and
PCEH requirements. This letter is to serve as the acceptance letter for MWE
and recommendation to Pitkin County for final acceptance of the system.
The new system replaced the old ST Bed system that had failed. The system was
full of holes, ineffective, and mostly seeping into the ground. A majority of
the old sy®tam was removed as the new system was being installed. The new
mound system was installed above the old system and 4' above the high ground
water level.
Plea a cal is you have any questions.
G an sie
C!ici\tnl\` 9 Oly, U1/eepLic Crll.
Sent By: McLaughlin Water Engine-;, Ltd; 970 925 1974; Aug -2" 10 3:28PM; Page 2/2
AUG -21-00 MON 01:20 PM ASPEN/PITKIN ENV HEALTH PAX:970 920 5074 PACE 1
COMWX hnyiT0ntn2aW_HcaIth Deartmant 130 S. Galena Co
511,
FAX
TO:
Phone:
Fax Phone:
CC:
Dean
Data;
Number of Pages including cover sheet:
PROM-
Nancy MacKenzie
Phone:
970-920-5076
Fax Phone;
970-920-5074
E'mail:
nancym a ci.asAert.00.us
IREMARKS. ❑ Urgent ❑ Foryourrewew ❑ Reply ASAP ❑ please Comment
RE: George Mahaffey
271 Lithe Elk Ck Ave
Dean,
I am concemed that the Mahaffey mound was placed over the failed ET bed and the Et liner
was not removed.. It could be that the liner was full of holes and completely Ineffective,
however that is an unknown. Please be sure to state in your "as -built" letter again that this was
done and why it should be OK. Thanks.
gq
IC}s h� T
L
McLAUGHLIN WATER ENGINEERS, ltd.
111 P AABC ASPEN, COLORADO 81611
970-925-1920 970-925-1974 fax mweaspen(a rof.net
MEMORANDUM
Date: August 10, 1999
To: Pitkin County Environmental Health;
From: Dean Derosier; McLaughlin Water Engineers, Ltd.
RE: MAHAFFEY Residence - Septic System Design Notes - LITTLE ELK CREEK -
99-019.01
The following are my design notes for the new Mahaffey Residence Septic System
design. The site is a flat area next to the home at 271 Little Elk Creek.
This system is replacing the existing system that has failed. Existing system
is to remain in place, but abandoned.
- 4 - Bedrooms (3 main + 1 future)
- Approx. 3,000 Square Feet of living area
- 100 gallons per day per person
- A percolation test was not performed as ground water is 1' below existing
grade.
- Ground water 1'+\- feet from surface
Flow = Q = 4 bed rooms x 2 peo/br x 100 gal/day/per x 1.75 = 1,400 gallons
per day.
This requires the new system to be 132 -feet from the well.
Tank sizing - 4 - Bed Rooms requires 1,750 gallons of septic tanks; Q X 1.25
Reuse the existing 750 gallon tank and install one additional 1,000 gallon
tanks in series for total 1,750 gallons of septic tanks. The new system will
require a dosing tank to pump the effluent up to the proposed Mound system. An
additional 750 gallon pumping tank is required in series with the two septic
tanks.
Dosing/pumping is to utilize a separate 750 gallon single chambered dosing
tank. Dosing volume - 300 gallons per dose 2-3 times per day.
Area of Septic field required = A
A = Q\ Loading Rate of the soils to be brought in as fill. The Loading Rate,
LR = 1.2 gallons pr Sq ft. per day.
A = Q/LR = 1,400/ 1.2 = 1,167 square feet
The mound system is shown on the attached drawing and discussed in further
detail on the attached memorandum. System total size is - 80' X 571, with a
disposal area 50' X 24' laid out to fit site conditions and meet all setbacks
as shown on the attached drawing. Approximately 2.75' of sand fill and 9" of
gravel will be required to be brought in to bring the system a minimum of 4'
above the ground water. Approximately 1.5' of fill will be placed on top of
the system.
Tanks will be installed in the general area below the home. Tees will be
installed on both the inffluent and effluent lines of the tank, set on the
inside of the tank. Set top of line from tee within 1" of the roof of the
tank and extend line downward 12" below center line of tee. Fill tank with
water prior to backfill to check for leaks and leave water in tank for placing
the system in service. Septic tanks will be a two -chambered tanks.
Piping from the home to the tanks will be 4" SDR 35 PVC laid at a minimum of
1%. Insulate lines with less than 5 -foot of cover or in uninsulated crawl
spaces.
Distribution will be through a 2-1/2" Sch 40 PVC from the tank to the
distribution manifold where 1" sch 40 perforated PVC will be run into each of
the 12 rows (22' long each, 6 on each side of the manifold) of the Mound
System. All piping to be bedded in a minimum of 2" under and 6" over of 3/4"
screened rock.
Adjustments to fit site contours and conditions may be made per approval of
the engineer. Elevations of the tank and trenches shall be finalized in the
field by the engineer. Installation and operation shall be approved by the
engineers prior to final acceptance. System must meet all PCEH and MWE
standards.
Dosing pu7p,H,dr.0matic Sk 75 unit,( 90gpm Q --23' head) .
G. lean Derosie
gdd\mahaffey\99-019.01
McLAUGHLIN WATER ENGINEERS, ltd.
111 P AABC ASPEN, COLORADO 81611
970-925-1920 970-925-1974 fax mweaspen@rofnet
MEMORANDUM
DATE: August 10, 1999
TO: Pitkin County and George and Jamie Mahaffey
FROM: McLaughlin Water Engineers, Ltd.; G. Dean Derosier,P.E.
RE: Mahafeey SEPTIC SYSTEM DESIGN - Replacement
This memorandum is written to give you additional details on the design, materials, and installation of a
replacement Septic System which was designed to serve the Mahaffey home at 271 Little Elk Creek in Old
Snowmass. The memorandum is separated into three sections; 1 - Septic tank and Mound System design, 2 -
Effluent tank design, 3 - Installation and Materials for the system. The design drawing is also attached for
additional reference.
1. Septic Tank and Mound System Design:
The location of the home and the site conditions determined the required type of system which was to be designed.
The site is located just above the water table in the Little Elk Creek Subdivision The difficulties encountered deal
with the 1lIOIIIlI am to work with and included the existing system already in place, existing trees, and high
ground water. These items lead to the design of a system which would use a standard septic tank and Mound
System, and will require a pump to lift the effluent up to a flat area next to the home site for disposal. Please see
my Memorandum dated August 10, 1999 for additional information on the new system and removal of the old
system
The system design was based on the ultimate construction of a 4 bedroom residence, which required at a minimum,
the installation of a 1,750 gallon septic tank for the separation of solids and a dosing tank. The existing 750 gallon
septic tank can be pumped and reused and add and additional 1,000 gallon tank as the main septic tanks (TOTAL
1,750 GALLONS), and a 750 gallon tank as the effluent pump/dosing tank. The main septic tanks are to be a
double chambered tanks and the effluent pumping/dosing tank is a single chambered unit. The three tanks are to
be installed in a series with the septic tanks first, followed by the effluent pump tank. The tank invert piping
elevations are to be as shown on the attached design drawing and field verified.
The water level, the dosing system, and the flow anticipated to utilized by the system determine the size of the
Mound System required. Using 1.2 gallons per square foot, a flow of 1,400 gallons per day requires 1,167 square
feet of septic disposal in the Mound System.
The details of the Mound System; installation, elevations, and location are shown on the attached design drawing
and sheets. The evanHfl system size will be 57 -feet X 80 -feet, the ISO field size is 244eet X 50 -feet. The
transmission piping and manifold are to be 2 -1/2 -inch and distribution laterals to be I -inch. both Sch 40, PVC
piping. The laterals are to be perforated piping, (1/4 -inch holes on 36 -inch centers), with`Nnches of gravel under
and 2 -inches of gravel over the pipe. The sand depth is — 2.75 feet and is to be a medium sized sand with the
following characteristics: 25%+ between 2.0 and 0.25mm; 30-35%- between 0.25 and 0.05mm; and 5-10%
between 0.05 and 0.002mm. This sand is similar to the masonry sand available at Roaring Fork Sand and Gravel.
Installation details and instructions are attached to this memorandum. Total height of the system is — 2.75' sand,
12" gravel, and 1.5' fill, for 5.25'.
Effluent Pumping Tank:
The effluent pumping tank is required to pump the effluent from the septic tank to the septic field in the terrace
above the home site. The tank capacity is approximately 750 gallons. The tank was sized in order to get the
required additional septic tank capacity and to cycle the pump operation of the system. The pumping system is
required to pump the effluent up approximately 8 -feet of elevation difference and 15 -feet of piping and head losses,
for a total of 23 -feet of head at 90 gpm. The pump we have chosen for the system is a submersible, by Hydromatic
Pump, Model number SK -75, a bronze pump system, with a piggyback float system. The pump is a.75 horse
power, single phase, 115Volt unit, with a 2 -inch discharge and a built in diaphragm level control system or
optional float system to regulate the operation of the pump based on water levels in the tank. The existing pumps
are not sized correctly to be allow them to be reused. The pump operation and installation is simple, as the water
level in the tank rises it switches on the pump, which operates until it reaches the bottom of the pump and shuts the
pump off. We recommend the operational float level system for the tank. A double float system will need to be
used, also by Hydromatic, Model 3900. The pump is to set on the floor of the tank approximately 6 -inch above the
floor. (Design details for operational water levels in the tank are to be field determined by the design engineer.
The type of pump control depends on the dimensions of the tank). Please check to see if the existing tanks controls
meet these recommendations, if they do, they can be reused with the new tanks, again check with the contractor
installing the system.
The pump operates at a approximately flow rate of 90 gallons per minute at the required 23 -feet head, and pumps
the effluent up to the manifold just prior to the distribution laterals. The manifold distributes the flow into the
laterals. The flow is evenly divided into the 6 lateral piping systems, with 1/4 -inch holes at 36 -inch centers.
Additional information on the selected pump is enclosed for your review and use.
At your option a second pump could be purchased as a backup or stand by pump. This would shorten the system
down time and inconveniences which will occur if the pump breaks down or has other problems. The cost of the
second pump is approximately $900.00. It is not required, but is recommended.
The effluent tank is also required by the County to be equipped with a high water level alarm system to alert you
when a pump has failed to operate or another problem has risen. The high water level alarm system is operated by
a float, mounted on the tank wall, which is activated when the water level rises to a chosen point above the normal
operating pump level. The float signals a red light and a buzzer, which should be located in your adjacent
mechanical room or garage. The buzzer can be turned off manually signaling acknowledgment of the problem, but
the red light stays on until after the water level drops back down. This is a required safety feature which assists the
owner in the satisfactory operation of system by letting you know you have a problem before it becomes an
emergency situation. The system we have chosen is a Tank Alert 1. by S.J. Electro. (See design drawing for
additional level control details. Please check to see if the existing alarm can be reused.
2 - 2 -inch PVC conduits are required to be run from the adjacent home to the new effluent pumping tank. One is
for power to the pump and the other one for the high water level control system. Please inform the electrical
designer of the home of these additions.
Installation and Materials:
The septic tanks can be obtained from Copeland concrete products in Rifle, or from the locally in Emma from
Dreager. The tanks should be located as shown on the drawings and installed level. The access ports are to be
sealed water tight and brought up to within 6 -inches of final grade. If in the event the tanks are too high, minor
landscaping may be required to bury them. The invert elevations for both tanks are critical to the operation of the
Pump and should be followed closely. The blockouts for the inlets and outlets are also required to sealed water
tight to prevent infiltration.
All piping, pump, and alarm system materials can be obtained form Dodson Engineering products in Glenwood or
Grand Junction Pipe in Basalt. The 4 -inch piping from the house to the septic tank and to the pumping tank is
SDR 35. All manifold, distribution, and lateral piping is to be Schedule 40 PVC. All Piping should be installed at a
minimum depth of 3.5 -feet. The pumping line is to be laid with the shown slope to permit the line to drain back
into the tank after each pumping cycle to prevent freezing. The laterals are to be installed as shown on the
drawing and are need to be installed to within + or - .01 -feet. (See attached design drawing for bedding details and
additional installation notes.)
The septic system installation can be done by any excavation contractor who is familiar with this type of project. If
you have any questions on the design or other items, please feel free to call me at any time. See installation and
construction notes attached to this memorandum.
CC: CCA - MWE - Denver
PCEH - Nancy M.
Thanks, Dean Derosier !
24
10
TypicalApplication*
Sewo e, Dewatering
Capacities
to 150 GPM (9.5 Vs)
Heads
to 34 ft (10.4 m)
Electrical
20OV, le, 10.4F(A, 60Hz; 230V, le, 9.OFLA, 60Hz
20OV, 3a, 4.OFLA, 60 Hz, 230V, 3e, 3.5FLA, 60Hz;
460V, 3e,1.8FLA, 60Hz, 575V, 3e,1.44FIA, 60Hz
Motor
(single phase) - 3/4HP Capacitor start w/thermal overload
protection, 3450 RPM; (three phase) - 3/4HP polyphase,
Minimum Recommended
3450 RPM
Minimum Recommended
Simplex = 24" (609.6mm);
Sump Diameter
Duplex = 36" (914.4mm)
Operation
Manual standard; Optional - wide anile float switch
1 !
Materials of construction
(lass 30 cast iron
Impeller
(lass 30 cast iron two vane non -dog
Discharge Size
2" (50.8mm); 3" (76.2mm) optional
Solids handling
2" (50.8mm)
Power cord
1 e, 20', S(W-A; 3e - 20', SPH -A
Superior Features
• (arbon/Ceromic type 21 mechanical seal
• Oil filled motor w/automatic reset thermal overload for
maximum protection
• Upper and lower single row ball bearing construction
• Capacitor start motor for improved starting!r..tue and
pump performance
12 4
9 30
LwLw
6 20
a
0
3 ~10
0L 0L
Capacity -U.S. G.P.M.
Liters/Second 0
Typical Application*
11
Sewage, Dewaterin
(opacities
to 156 GPM (9.8 Vs)
Heads
to 38 ft (11.6 m)
Fledrical
20OV,lo, 11.5FIA, 60Hz; 230V, le, lO.OFLA, 60Hz
200V, 3e, 5.OFLA, 60 Hz; 230V, 3e, 4AFLA, 60Hz;
460V, 3e, 2.2F(A, 60Hz; 575V, 3e, 1.7FLA, 60Hz_
Motor
(single phase) -1 HP Capacitor start w/thermal overload protection,
3450 RPM; (three phase) -1HP polyphase, 3450 RPM
Minimum Recommended
Simplex = 24" (609.6mm);
Sump Diameter
Duplex = 36" (914.4mm)
Operation
Manual standard; Optional - wide angle float switch
Materials of construction
Class 30 cast iron
Impeller
Class 30 cast iron two vane non -dog
Disc are Size
2" (50.8mm); 3" (76.2mm) optional
Solids handling
2" (50.8mm)
Power cord
le, 20', S1W-A; 3e - 20', STW-A
Superior Features
• Carbon/Ceromic type 21 mechanical seal
• Oil filled motor w/automatic reset thermal overload for
maximum protection
• Upper and lower single row ball bearing construction
• Capacitor start motor for improved starting torque and
pump performance
SKI
20 40 60 80 100 120 140 160
4 +-
2 4 6 8 10
I i'-"
IV"
AREA :.CALCULATION S SUMMARY
LIVING
AREA
CALCULATIONS
A
Area.; ....' Name of Area Slze Totals
TABLE ADDENDUM
Breakdown
Y
SKETCH/AREA
He NO: 4229
Borrower/Client
Mahaf£'Geo1,cue
J. Arid ,7amta P.
u
VI Al Ylrnt. Vla r 2427.62 2427.62
8
Property Address
X
43.60
1495.48
271 Little
E 1.1, Creek ,?iVE'rme
j
City(`nunty
State 7Jp Code
G
Snowmass
Pi Lki._n
C.,o1c,7_adc� 81654
22.20
X
32.20
714.84
.f.
Lender
FirstWestern Lending of As en _
AREA :.CALCULATION S SUMMARY
LIVING
AREA
CALCULATIONS
A
Area.; ....' Name of Area Slze Totals
Breakdown
Subtotals
VI Al Ylrnt. Vla r 2427.62 2427.62
34.30
X
43.60
1495.48
GLA2 Loft 289.00 288.00
22.20
X
32.20
714.84
GAR Garage 457.20 491.20
4.00
X
32.20
128.80
c
12.30
X
5.00
61.50
AS.
0.30
- X
11.00.
.1 J
'.
1.90
x
3.00
5.70
C
6.00
X
3.00
18.00
u
6.00
X
16.00
96.00
6.OU
X
12.00
72.00
A '
10.00
X
12.00
120.00
T
I
O
N
S
TQTAL LIVABLE (rounded) 27'16
27`16
MO
EN REAL
ESTATE APPMSENS, LTD. APEX SOF WAAE, INC. 1 (512) 699 66813
Form nex2000
w
�n
ORIGINAL SURVEY
ALPINE &URvE` ,^-
F 0 BOX 1730
ASPEN CO, 81612
970-925-2688
DANIEL MCKENZ IE
6/3/88
T,4Ni<, f=Jt- f= 4ND REUSE
DISCONNECT OLD
5STE1„1 4ND RECONNECT
TO NEW L INE TO
NEW T,4Nf<
f
T,4N<, r-14TCI-1 IE OUTV�,T,4LL OF EX IST ING T,4Nf<
NEW 4'' SDR3 PVC FROr-1
EX IST INCA T,4 << TO NEW T,4N<
,4NIDF NEU 11,000 G,4L T.,4N<
TO
D S C� T4N<
20 0 20 40
inch = 20 feet
i"10UND S"'STEI-i
OYER,4LL DE1" TENS IONS 4RE 80' X 57'
6,4ND 5T'STEr'1 50' x 24', SEE DUJG
T�4 IS SHEET FOR DET,41LS OF i"IOUND S`►'STE�* 1
1" 1OUND 15'T'&TE1�1 15 12 1'' SCS .40 FVC, L,4TER4,LS
22' IN LENGTH, 3' 4P,4RT 4ND 4,5' FROI" 1
SIDES, 1/4" MOLES aro OO r4T SOTTO - 1
OF RIFE,
EXISTING SYSTEM TO REt' 1,41N
IN PL4CE, DISCONNECT LINES
FROl"l T4N<, LOC,4T ION IS UN<NOUJN
ALL 3'' 1"T,4N IFOLD ,4ND TR,4NS1„1 ISS 1ON
FRO -1 DOS INCA T,4Nf< TO FIELD ,4ND
4CN L,4TER,4L LINE IN 1" FOUND S''&TE1 l
:�E L INE TO DRA IN 5,4Cf< TO TANf<
�,5 FOOT COVER, T" G4N IFOLD IN CENTER OF T IOUND
. NEW 750 GAL DOS INCA
T,4Nf< SEE 4TT,4Cl4ED DLJG FOR DET,4ILS
IE TO 5E FIELD DETERI''T INED 5,4SED
ON EXISTING T,4Ni<,
D = 2.75' 6 ROWS EACH SIDE (22' LONG ) OF I" PERF PIPE
1/4" HOLE ® 60" OC, 3' APART
E = 2.75' PERFORATED PIPE
F = 0.75'
CLAY FILL OR
G = 1.0'-��-_I I !_� I OTHER FILL
H = 1.5'
SUBSOIL
--I0.5% SLOPE
A = 24'
B = 50'
W = 57'
L = 80'
1 = 19.5'
J = 13.5'
K = 15'
3/4" ROCK
ROCK
PLOWED SURFACE
MOUND DETAILS
CROSS SECTION — NTS
W
SOIL
2-1/2" MANIFOLD FROM TANK
3/4" SCREENED ROCK
MEDIUM SAND FILL
CLAY OR OTHER FILL
MOUND DETAILS
PLAN VIEW
DOSING TANK ING TANK LEVELS
0 SBE FIELD DETERMINED
NTS BY THE ENGINEER
K
t A
J
J
ETAN
DISTRIBUTION
LATERAL
BED
3/4"
SLOPE
i
-
m
OF
ROCK
SLOPE
MOUND DETAILS
PLAN VIEW
DOSING TANK ING TANK LEVELS
0 SBE FIELD DETERMINED
NTS BY THE ENGINEER