HomeMy WebLinkAbout20232321.tiffON -SITE WASTEWATER TREATMENT SYSTEM
RECOMMENDATIONS
FOR
25490 COUNTY ROAD 58,
(GREELEY),
WELD COUNTY, COLORADO
FOR
M & M EXCAVATION
CDS ENGINEERING CORPORATION
LOVELAND, COLORADO
PROJECT NUMBER
23-1867
MARCH 6, 2023
CDSEngineering Corporation
March 6, 2023
Project No. 23-1867
Terry
M&M EXCAVATION
25490 CR 58
Greeley, CO 80631
Dear Terry,
Enclosed is the report you requested of the on -site wastewater treatment system
recommendations for the existing building located at 25490 County Road 58, (Greeley), Weld
County, Colorado.
The design criteria and recommendations provided in this report are in compliance with Weld
County regulations for On -site Wastewater Treatment Systems. The system should function
adequately if installed, operated, and maintained in accordance with this criteria.
If you should have any questions concerning the information in the report, please feel free to
contact this office.
Reviewed by:
Respectfully,
FOR AND ON BEHALF OF
CDS ENGINEERING CORPORATION
se Eriz, > dgineering Technician
165 2nd Street S.W. • Loveland, CO 80537 • (970) 667-8010 • Fax (970) 667-8024 • www.cds-eng.net
TABLE OF CONTENTS
Page
Letter of Transmittal
Table of Contents
Site Location and Description
Subsoils and Groundwater Conditions
System Design
Materials
Backfilling and Site Grading
Conclusions
Site Drawing and Location of Test Pits
Septic System Design Details
Log of Test Pits
OWTS Details
Septic Tank and Pressure Details
General Notes
Soil Treatment Area Calculations
Sand Media Requirements
Additional Information: Pump Curves
ATTACHMENTS
ii
ii
1
2
2
4
4
4
Figure No. 1
Figure No. 2
Figure No. 3
Figure No. 4
Figure No. 5
Figure No. 6
Figure No. 7
Figure No. 8
Appendix I
1
SITE LOCATION AND DESCRIPTION
Site Location: Site is located north of Kersey, east of County Road 51 and on the south side of
County Road 58, Weld County, Colorado.
Description: The site consists of approximately 76 acres and is generally in a plains region with
paved roads and utilities.
Proposed Use: An existing commercial building. It is our understanding that a new warehouse
will be built in the area of the existing STA. Therefore, the new OWTS will be installed to
service the existing office. There are 10 existing full time and 30 transient employees.
However, this design will utilize 20 full time employees to accommodate for any future increase.
The wastewater strength is anticipated to be typical for that of domestic wastewater as defined
by the State OWTS Regulations.
Field Investigation: Performed on February 14, 2023, consisted of logging two (2) test pits to a
depth of eight (8) feet.
Setback: Other than the distances to setback objects indicated on the design documents, no other
objects requiring setbacks from the proposed on -site wastewater treatment system (OWTS), as
indicated in Tables 30-7-1 and 30-7-2 of the Weld County Regulations, have been located or
observed during our exploration.
Topography: The overall site and proposed STA area has an approximate 1% slope to the south.
Vegetation: Was largely nonexistent.
Natural and Cultural Features: A small portion of the property is being used as a construction
business with an existing building and gravel parking area. The remaining property appears to
be used for agricultural purposes.
Historical Use: This site appears to have been used for agriculture.
Water Supply: The site is serviced by a municipal water source.
Existing OWTS: An existing OWTS is located on the lot. The existing STA will be abandoned.
The existing septic and pump tank can be utilized if in good condition.
2
Easements: Easements are not noted on the property. Verify that the OWTS will not interfere
with any easements, prior to construction.
Floodplain: Based on County Property portal maps, this property is not located in a floodplain.
SUBSOILS AND GROUNDWATER CONDITIONS
Soils Description: Classification: gravelly sand, Soil Type R-0, LTAR 0.80.
Groundwater: Groundwater was not observed in the test pits.
Limiting/Restrictive Layer: Type "R" soils were noted at a depth of three and one-half (3'/2) feet.
SYSTEM DESIGN
Based on the conditions described above, a pressurized sand filter system should be suitable
for this site. The infiltrative surface shall be placed between one (1) to four (4) feet below
existing grades.
Due to the location and poor filtration qualities of the gravelly sands, we recommend that the
soils underlying the treatment area be over -excavated and replaced with approved sand media (See
Figure No. 8). The over -excavation shall be at least three (3) feet below the infiltrative surface. To
help reduce settlement of the chambers, it is our opinion that the sand media be compacted to 90% of
standard proctor density. The sand media can be water settled. The Contractor shall determine the
means and methods to achieve proper compaction. The open excavation should be inspected by a
representative of the County Health Department or CDS Engineering Corporation prior to
backfilling the excavation.
New fill around the treatment area perimeter should consist of native or imported clayey
soils. The perimeter fill shall be well compacted to provide lateral support for the bed and to help
retain the wastewater. The finished grade of the mound shall be no steeper than 3h:ly where
original slope conditions and final grading plans permit. Retaining structures may be needed where
original slopes exceed 25%.
The system shall be pressure dosed to help provide a more even distribution of effluent over
the treatment area.
3
Pump Select 2.0, a pump sizing program developed by Orenco Systems, Incorporated was
used to determine several of the design parameters including the design flow rate and total dynamic
head. See below for Pressure requirements.
Pipe: All pipe shall be a minimum of Schedule 40 or Class 200
Transport pipe size:
Manifold pipe size:
Lateral pipe size:
Orifice Size:
Orifice Spacing:
2 inch (nominal diameter)
1'/2 inch (nominal diameter)
1'/2 inch (nominal diameter)
1/8 inch diameter
4 feet
Minimum Pump Requirements: Design flow rate: 17.0 GPM
Total Dynamic Head: 11.2 feet
Recommended Pumps: Orenco PF50 High Head Effluent Pump
Control Panel: SJE Rhombus Colorado SX Panel
If different components are used, the engineer should be notified prior to installation.
Dose Volume: Minimum dose volume shall be 3 times the lateral volume plus the drainback volume.
The maximum dose shall be 25% of the daily design flow plus the drainback volume.
Total Lateral Volume (from Pump Select Program) = 17.9 gallons
Drainback Volume = 50.6 gallons
Min. Dose: 3 x V + drainback = 104 gallons
Max. Dose: 25% x GPD = 144 gallons
Freeze Prevention: We recommend all components of a pressurized system be buried a minimum of
thirty (30) inches to prevent freezing. If this is not an option, there are other precautions that can be
applied. The transport line could be sloped to drain back into the septic tank. We recommend a
minimum slope of 2%. Pipe laterals should have the first, center, and last orifice drilled at the six
o'clock (downward) position to help drain the laterals after each dose. Orifice shields shall be
placed over the downward facing orifices.
4
MATERIAL S
The materials used in construction of the on -site wastewater treatment system shall be new,
durable and not subject to corrosion, such as concrete, fiberglass or plastic. All materials shall be
installed per manufacturer specifications. All connections between components shall be water -tight
to prevent leaks and infiltration.
BACKFILLING AND SITE GRADING
All major grading shall be accomplished before construction of the sewage treatment system.
Backfilling around septic tanks shall be accomplished before the installation of the piping. Backfill
around the tank shall be in a manner to prevent settlement and avoid undue strain on the tank.
Positive drainage from, and around, the bed must be provided by sloping, mounding, ditching or
berming.
CONCLUSIONS
The system should be constructed by a licensed septic system installer, in accordance with
the County On -Site Wastewater Treatment Regulations. Minimum dimensions and setback
requirements specified by the state or county health department regulations shall be upheld. It is the
contractor's/owner's responsibility to inform the engineer or health department of anything not
mentioned in this report that may impact the performance of the septic system. This system is to
meet all rules and regulations set forth by the County Health Department. The system is to be
inspected by a representative of the County Health Department and/or Engineer, prior to backfilling.
If required by the County Health Department, the Engineer will inspect the system at an additional
cost.
All future owners are to be directed to information in the General Notes of this report. These
tests are only valid for the areas tested. Additional soil profile information will be required if the
septic system is to be constructed in a different location than covered by this exploration. The
findings and recommendations of this report have been obtained in accordance with accepted
engineering practices in the field of Geotechnical Engineering. There is no other warranty, either
expressed or implied. The county health department has final acceptance over these test results and
referenced system. All construction shall be in compliance with the septic system permit.
JL
100
SCALE 1"=100'
0
Highway 34 .y_,.....
100
Existing Effluent '
Line, Aprox.
II
Site Drawing and Location of Test Pits
Client: M & M Excavation
Project: 25490 County Road 58 (Greeley)
Weld County, Colorado
COUNTY ROAD 58
EXISTING
BUILDING
FF.= 4618.63
Existing STA
Engineering
Corporation
EXISTING BUILDING
Exiting Vault,
Floor Drain
Existing Septic Tank
ir, I
Date: 02/27/23
Project No. 23-1867
Drawn: JDE
165 2nd St. S.W.,
Loveland, Colorado 80537
Tele: (970) 667-8010
Figure: 1
40 0 40
SCALE 1"=40'
INSPECTION
PORT, TYP.
40'
10 UNITS
N
FLUSHING
VALVE, TYP.
2.' 0 TRANSPORT PIPE
CONNECT TO EXISTING
1.5" 0 MANIFOLD PIPE
1.5 0 Laterals tied to top of chambers per
mfr. specifications. Laterals shall have y"
orifices drilled at 4' intervals. The holes shall
be oriented facing up. Except the first, center
and last hole shall face down for drainage.
Install orifice shields on downward facing
orifices.
10' BLD. SETBACK. STA
Slope transport line to tank
or to field for frost protection.
EMPLOYEES: 15+30 GPD: 375 LTAR: 0.80 SOIL: R_0
ABSORPTION AREA: 480 sq. ft. CHAMBERS: 40
SEPTIC TANK: 1000 gal. PUMP TANK: 375
LIMITING LAYER: 3.5' STA DEPTH: 1=4'
COUNTY ROAD 58
Abandon Existing
STA
,EXISTING'
BUILDING .
EXISTING 2" 0
TRANSPORT PIPE
VERIFY LOCATION
EXISTING =375 GAL
PUMP TANK,
DOSE:104-144 GAL.
INSTALL NEW PUMP,
SEE REPORT
EXISTING
CLEANOUTS
EXISTING 1000 GAL ..
SEPTIC TANK
INSTALL FILTER
OWTS Design Details
Client: M & M Excavation
Project: 25490 County Road 58 (Greeley)
Weld County, Colorado
Engineering
Corporation
Date: 02/27/23
Project No. 23-1867
Drawn: JDE
165 2nd St. S.W.,
Loveland, Colorado 80537
Tele: (970) 667-8010
Figure: 2
TP-1
TP-2
i
Clay loam, dk. brown, firm, sl. moist (Fill)
i
Clay loam, dk. brown,
Shape: Massive Grade: Structurless
firm, sl. moist (Fill)
i
Soil Type: 3A
,'
Shape: Massive Grade: Structurless
/
/
Soil Type: 3A
•
Clay, tr. roots, dk. brown, sl. moist, firm
�
Clay, tr. roots, dk. brown, sl. moist, firm
Shape: Blocky Grade: Moderate
/
Shape: Blocky Grade: Moderate
Soil Type: 4
/
Soil Type: 4
/
2'
//
/
3'
-✓/.
//'/
/
3.5'
3.5'
�
Sand, gravelly, brown, loose, damp
:, :
Sand, gravelly, brown, loose, damp
4
.=
*
Shape: Singular Grade: Structurless
Shape: Singular Grade: Structurless
Soil Type: R -O
Type: R -O
•Soil
at,.
47.5% Rock
•
5'
'
':''
f.
:a•
.
6'
4
-
• .
35%.Rnck
•
7'
•
}
,y
6'•
•
8
8'
,
9'
Limiting layer: Yes Depth: 3.5' Groundwater _ NA
Limiting layer: Yes Depth: 3.5' Groundwater . - NA
Type: Gravel, R-0
Type: Gravel, R-0
Date of Excavation
10/17/19
Date of Investigation
10/17/19
Equipment
Backhoe
Technician
JDE
Soil Type (NRCS)
Altvan loam, 0 to 1 slopes
LOG OF TEST PITS
CDS
Date: 02/27/23
Client: M & M Excavation
Project: 25490 County Road 58 (Greeley)
Weld County, Colorado
Project No. 23-1867
Engineering
Corporation
165 2nd St. S.W.,
Loveland, Colorado 80537
Tele: (970) 667-8010
Drawn: JDE
Figure. 3
PRESSURE DOSED SAND FILTER
SLOPE SURFACE TO
PREVENT PONDING AND
PROMOTE RUNOFF.
ESTABLISH VEGETATIVE
COVER CORNER, NOTCH BOTTOM
CLEAN NATIVE
BACKFILL, 12" MIN.
SE -EE -PL -AN
OVER EXCAVATE AND
REPLACE WITH 3' MIN. OF
APPROVED SAND MEDIA
Infiltrators shown for schematic purposes.
Actual number of rows will depend on size
of the field.
12'
SCHEDULE 40 or CLASS 200
PVC PIPE LATERAL
SCHEDULE 40 OR
CLASS 200
DISCHARGE
PIPE FROM PUMP
INFILTRATIVE
SURFACE
LEI
MANIFOLD
Typical Cross Section
FINISH GRADE
�o +
SAND MEDIA
4" OBSERVATION PIPE IN EACH
7- EXISTING GRADE
DISTRIBUTION
PIPE, SEE PLAN
-11
4" OBSERVATION PIPE (4)
NOTCH BOTTOM
PIPE TO ENTER TOP
HOLE OF END CAP.
PVC CAP
HAND HOLD, VALVE
BOX, OR SIMILAR.
INSULATION MAY BE
REQ'D TO PREVENT
FREEZING.
PVC BALL VALVE
PVC SECTION
PVC LONG SWEEP
90° BEND
IN -SITU
MATERIAL
OWTS Details - Bed System
Client: M & M Excavation
Project: 25490 County Road 58 (Greeley)
Weld County, Colorado
Engineering
Corporation
Date: 02/27/23
Project No. 23-1867
Drawn: JDE
165 2nd St. S.W.,
Loveland, Colorado 80537
Tele: (970) 667-8010
Figure: 4
Inspection access
riser to grade,
with lid
Sealed water tight
to top of tank
Inlet pipe, 4" e
D-3034 or Sch 40.
min. A" per ft. with
no portion less
than y" per ft.
24" Min.
111111
-ICI=111-ICI-'
1-111_ lit
SEPTIC TANK
"-III��IIII�'
SEE PLAN
TANK SIZES
Lid at grade
Splice Box 24" Min.
Filter handle, place
within 1' of top
Effluent filter- Recommended
Required for pressure and
commercial systems.
FOR
Drawdown:
14" to 20"
per dose.
III
1=
III— II—III=�
Lli II "III -1'
Separate float
stem
PUMP TANK
Quick connect
union accessible
from the top.
I C 1 I I -"'-
Discharge pipe,
Sch 40 or Class 200.
See plan for size.
Weep hole
Effluent pump
per plan
SEPTIC TANK NOTES
• State and county approved precast concrete or plastic tank
required.
• Tank must be placed level.
• Tanks must be watertight.
• Must have two or more compartments or more than one tank
can be used in series. The first compartment of a
two -compartment tank or the the first tank in a series must
hold no less than one-half of the required effective volume.
• Inlet invert must be at least two inches higher than the outlet.
• Tanks shall be placed a minimum of 5' from a structure.
• An effluent filter for a residential gravity system is optional but
is recommended.
• At least one access opening no less than 24 inches across
must be provided in each compartment of the tank.
• Septic tanks must have watertight riser over each access
manhole and and all risers must extend to or above final
grade.
• Each riser lid must be watertight, brought to or above the
surface, and must have a secure closing mechanism.
• For new construction, the top of any septic tank, dosing tank or
vault must be no deeper than four feet below finished grade.
• See report and state or county regulations for additional
information.
PRESSURE DETAILS
1. Floats must be mounted on a stem separate from the pump discharge piping to allow for removal, adjustment, and replacement of the float
without removing the pump.
2. Automatic liquid level controls must be provided to start and shut off pumps at frequency or level specified in the design
3. A quick disconnect union must be accessible from within the riser of the tank. This allows the pump to be removed without cutting the outlet
line or hanging down into the tank to make repairs.
4. All electrical connections and splices must be made outside of the tank and riser. Run electrical connections for the pump and floats outside
the riser to prevent corrosion. Leave enough extra wire to allow for removal of components.
5. The control panel must be mounted in a location where it is visible from the septic tank, and include an audible and visual alarm. Must
bear the seal of a Nationally Recognized Testing Laboratory.
6. Pump system shall be able to track pump runtime and number of cycles. Not required for a pump to gravity system.
7. The pump system shall have a switch so the pump can be manually operated.
8. The pump shall be connected to a control breaker separate from the high water alarm breaker and from any other control system circuits.
9. Pumps and float switches must be certified to the applicable UL or case electrical safety standard, bear the seal of approval of case, UI
or an equivalent testing program and be constructed of resistant materials.
10. The pump must be located in a screened vault, or an effluent screen provided in the chamber prior to the pump.
11. The effluent screen must be cleaned at manufacture recommended intervals, or more often is neccesary.
12. The pump tank, chamber or compartment must have a minimum 24 inch diameter access riser, made of corrosion resistant material,
extending to or above ground level.
13. The access riser must have a watertight connecton to the the pump chamber/compartment.
Septic Tank and Pressure Details
Client: M & M Excavation
Project: 25490 County Road 58 (Greeley)
Weld County, Colorado
Engineering
Corporation
Date: 02/27/23
Project No. 23-1867
Drawn: JDE
165 2nd St. S.W.,
Loveland, Colorado 80537
Tele: (970) 667-8010
Figure: 5
1. Topsoil should be saved for final cover.
2. SEPTIC TANK: 2 compartment tank. Locate a minimum of 5' from residence and/or distribution box. Manhole lids and risers shall
extend to the surface. Inlet tee must consist of a sweeping bend.
3. PUMPING: Septic tanks should be pumped as often as needed based on usage. Generally, when the scum layer plus the sludge
layer equals 25% of the liquid depth in the tanks.
4. ABSORPTION AREA: Shall not be excavated in a manner that will compact or smear the infiltrative surface, i.e. no wheel loads.
Infiltrative surface to be level. Bed area and dimensions are provided on this drawing. Schedule 40 pipe should be used if placed
under driveway.
5. SUPPLY LINE: Shall be solid ASTM D3034 (SDR 35) or Schedule 40 PVC laid with a minimum fall of 1/4" per foot (with no portion
less than 1/8" per foot). Pipe shall be a minimum of 4" in diameter. Pipes bends shall be limited to 45° or a sweeping 90°All pipes,
except distribution laterals, shall be bedded with select materials. See county regulations. Bedding and backfill material shall be
compacted to reduce settlement.
6. Sewer line between the building and the septic tank shall be a minimum of 22" deep or protected from freezing.
7. CLEANOUTS: Required between the building and the septic tank. Shall be installed within 5' of the building and at intervals not to
exceed 100'. Also any change in direction greater than 45 degrees. See county regulations for additional requirements.
8. DISTRIBUTION BOX: If used, shall be laid level for uniform distribution of effluent. Flow equalizers shall be installed. Install riser to
surface for access. Install a minimum of 5' from septic tank.
9. PRESSURE SYSTEM: Piping under pressure shall consist of Schedule 40 or Class 200.
10. CHAMBERS: Quick 4 Plus Chambers. Chamber information based on published material by Infiltrator Systems, Inc., and State
Regulation 43, Section 43.13 (e)(1)(d). If alternate chambers are to be used notify engineer prior to construction as bed
configuration may change.
11. GRAVEL BEDS: Pipe lain in beds or trenches shall be level and must be no less than 3" in diameter. For beds, the distance
between parallel gravity distribution laterals must not exceed 6' (center to center). A lateral must be located within 3' of each
sidewall and end wall. The pipes must be capped, or looped if in a bed. The perforated pipe must be surrounded by clean, graded
gravel or other approved material ranging in size from Y" to 2 Y". Gravel should have no more than 1% by weight passing a No.
200 sieve. At least 6" of rock must be placed below the pipe and a minimum 2" above the pipe. The top of the gravel must be
covered with non -woven permeable geotextile with a min. thickness rating of 2.0-5.0 ounces per square yard or equivalent pervious
material.
12. STA: Width shall not exceed 12' and shall be no deeper than 4'. Minimum distance between beds is 6' sidewall to sidewall.
Minimum distances between trenches is 4', sidewall to sidewall. STA shall be placed a minimum of 20' from structures. This can
be reduced to 10' for structures with no basement, crawl space or footing drains.
13. INSPECTION PORTS: Shall be accessible from the surface. They must be installed at the terminal end of each line or chamber
row for a trench system; or at each corner of a bed system. They shall extend to the infiltrative surface. Ports shall be perforated or
saw cut on the bottom portion in contact with the media. May be installed directly into chamber per. mfr. specifications if the
infiltrative surface can be seen.
14. COVER: Cover material to consist of native soils capable of supporting vegetation. Vegetation should be a drought resistant grass
such as a tall fescue. Installer & owner shall coordinate on planting and maintaining seeds to germination. Tall grass shall be kept
short during the winter months
15. SITE DRAINAGE: drainage shall promote water runoff over the bed and prevent ponding within 10' of bed.
16. SITE USAGE: The soil treatment area should not be used for grazing, sports activities, traffic or other activity which may compact
the soils. Trees should not be planted within the root zone of the STA. If trees are planted they should be locates so that the STA is
not shaded.
17. Overuse of strong chemicals, which may kill the bacteria in the system and inhibit decomposition of the sewage, should be
avoided
18. REPLACEMENT SYSTEMS: Setbacks may be decreased at the discretion of the County Health Department.
19. CELLULAR CORE pipe shall not be used for either gravity or pressure systems.
20. See the Report and County or State Regulations for additional information.
OWTS General Notes
Client: M & M Excavation
Project: 25490 County Road 58 (Greeley)
Weld County, Colorado
Engineering
Corporation
Date: 02/27/23
Project No. 23-1867
Drawn: JDE
165 2nd St. S.W.,
Loveland, Colorado 80537
Tele: (970) 667-8010
Figure: 6
SOIL TREATMENT AREA CALCULATIONS
Number of Employees:
Minimum Septic Tank Size:
Design Flow
LTAR
15 Full + 30 Transient (20 x 15 gpd) + (30 x 5 gpd)
1000
375 (Tables 30-6-1 & 30-6-2, WCHD On -site Wastewater Regulations)
0.8 (Tables 30-10-1 & 30-10-1A, WCHD On -Site Wastewater Regulations)
Adjustment Factors: (Tables 30-10-2 & 30-10-3, WCHD On -site Wastewater Regulations)
Pressure 1.0
Soil Type: R-0 (Secondary)
Chambers 1.0 Treatment Level: 1
Type of Chamber used: Infiltrator Quick4 Plus/Standard (3'x4')
Effective Area of Chamber:
Minimum STA (sq. ft.):
12
469
Bed Configuration
Bed Number
Length (ft)
Width (ft)
Number of Rows
Chambers per
Row
Bed Size (ft2)
1
40
12
4
10
480
Total Inf. Area (ft 2) 480
Designed No. of Chambers:
40
Calculation Formulas
Minimum Absorption Field Size (ft 2)
Design Flow
LTAR
x
Adjustment
Factors
375
0.80
x 1.0 x 1.0 = 469
Minimum Number of Chambers
Bed Area
Effective Area
468.75
12
= 40 Units
CLIENT:
M & M Excavation
CDS
Engineering Corporation
PROJECT NO.
23-1867
DATE:
2/27/23
LOCATION:
25490 County Road 58, Weld County
165 2nd St SW • Loveland, CO • 80537 • 970-667-8010 • www.cds-eng.net
Fig. No.: 7
Z:\Structural-Geotech\Projects\M & M Excavation\25490 CR 58, (Greeley), Weld\23-1867 OWTS Calc.xlsx
Sand media used below the distribution system will typically be ASTM C-33 meeting the "preferred" or "secondary" requirements.
A: "Preferred" sand requirements:
1) Effective size: 0.25-0.60 mm
2) Uniformity coefficient: ≤ 4.0
3) Percent fines passing #200 sieve: ≤ 3.0
B: "Secondary" sand media requirements:
1) Effective size: 0.15-0.60 mm
2) Uniformity coefficient: ≤ 7.0
3) Percent fines passing #200 sieve: ≤ 3.0
A gradation of the sand media must be provided. The gradation must be dated no more than one month prior to the installation date.
However, a gradation of the actual material placed in the excavation is recommended.
Sand Media Requirements
Client: M & M Excavation
Project: 25490 County Road 58 (Greeley)
Weld County, Colorado
Engineering
Corporation
Date: 02/27/23
Project No. 23-1867
Drawn: JDE
165 2nd St. S.W.,
Loveland, Colorado 80537
Tele: (970) 667-8010
Figure: 8
APPENDIX I
ADDITIONAL INFORMATION FOR RECOMMENDED COMPONENTS
Pump Selection for a Pressurized System - Single Family Residence Project
M & M Excavation 23-1867 / 25490 County Road 58, Weld County
Parameters
Discharge Assembly Size 2.00 inches
Transport Length 290 feet
Transport Pipe Class 40
Transport Line Size 2.00 inches
Distributing Valve Model None
Max Elevation Lift 5 feet
Manifold Length 9 feet
Manifold Pipe Class 40
Manifold Pipe Size 1.50 inches
Number of Laterals per Cell 4
Lateral Length 40 feet
Lateral Pipe Class 40
Lateral Pipe Size 1.50 inches
Orifice Size 1/8 inches
Orifice Spacing 4 feet
Residual Head 4 feet
Flow Meter None inches
'Add-on' Friction Losses 0 feet
Calculations
Minimum Flow Rate per Orifice 0.39 gpm
Number of Orifices per Zone 44
Total Flow Rate per Zone 17.0 gpm
Number of Laterals per Zone 4
% Flow Differential 1st/Last Orifice 0.2 %
Transport Velocity 1.6 fps
Frictional Head Losses
Loss through Discharge
Loss in Transport
Loss through Valve
Loss in Manifold
Loss in Laterals
Loss through Flowmeter
'Add-on' Friction Losses
Pipe Volumes
0.6 feet
1.6 feet
0.0 feet
0.0 feet
0.0 feet
0.0 feet
0.0 feet
Vol of Transport Line
Vol of Manifold
Vol of Laterals per Zone
Total Volume
50.6 gals
0.9 gals
16.9 gals
68.4 gals
Minimum Pump Requirements
Design Flow Rate 17.0 gpm
Total Dynamic Head 11.2 feet
41.11N
(6.:d
lko
Orenco
r i` Al
Total Dynamic Head, TDH (Feet)
10 20 30 40 50 60 70 80
Net Discharge (gpm)
PumpData
PF5005 High Head Effluent Pump
50 GPM, 1/2HP
115/230V 10 60Hz, 200/230V 30 60Hz
Legend
System Curve:
Pump Curve:
Pump Optimal Range: —
Operating Point: 0
0
Design Point:
...�Cr rieadings Read Dates
plumber Description Previous Present Usage Read Code Previous Present
003062-01 1000 Gallons 2157 2213 56 Actual 07/22/2022 08/22/2022
Previous Balance
Payment — Check
Water Minimum Charge
Water Usage Charge
CBT Surcharge
$94.15
—$94.15
$19.27
$103.68
$0.00
Total Current Charges $122.95
Total Amount Due $122.95
Please write Account Number on all check payments. Auto Pay is
deducted the 15th of each month if setup at www.cwcwd.com. Water
Service Rates, Surcharges, and Tap Fees increasing Nov 1,2022.
Water
/8%
A2/
AS
14�
O N D J F M
AMJJ A
67
EBiII Bill ID 0432 00003601
Customer
M & M Excavation
Service Address
25490 County Rd 58
Billing Date
08/25/2022
Due Date
09/15/2022
Account Number
003062-01
Amount Due
$122.95
Annual Allocation
YTD Usage
**Surcharges apply if Allocation is exceeded**
300
190
Central Weld County Water District
2235 2nd Avenue
Greeley, CO 80631
970-352-1284
Hello