HomeMy WebLinkAboutCT 14-10; POINSETTIA 61; POTABLE AND RECYCLED WATER STUDY; 2016-09-20DEXTER WILSON ENGINEERING, INC.
WATER • WASTEWATER • RECYCLED WATER
CONSUL TING ENGINEERS
POTABLE AND RECYCLED WATER STUDY
FOR THE POINSETTIA PROJECT
IN THE CITY OF CARLSBAD
EIR 15-03
September 20, 2016
REr~~'\'I~D
OCT O 5 l.017
LAND CE'JLL \lr•\F_r\JT
ENGINt:.t:-.Kl;· .. V
2234 FARADAY AVENUE • CARLSBAD. CA • (760) 438-4422
POTABLE AND RECYCLED WATER STUDY
FOR THE POINSETTIA PROJECT
IN THE CITY OF CARLSBAD
EIR 16-03
September 20, 2016
Prepared by:
Dexter Wilson Engineering, Inc.
2234 Faraday Avenue
Carlsbad, CA 92008
760-438-4422
Job No. 663-067
DEXTER WILSON ENGINEERING, INC.
September 20, 2016
Lennar Homes
25 Enterprise, Suite 300
Aliso Viejo, CA 92656
Attention: Andrew Han, Project Manager
DEXTER$. WILSON, P.E.
ANDREW M. OVEN, P.E.
STEPHEN M. NIELSEN. P.E.
NATALIE J. FRASCHETTI, P.E.
ALEXANDERS. DUCHON, P.E.
663-057
Subject: Potable and Recycled Water Study for the Poinsettia Project in the City of
Carlsbad, EIR 15-03
Introduction
The Poinsettia project is located in the City of Carlsbad west of El Camino Real, south of
Cassia Road, east of Ambrosia Lane, and north of Aviara Parkway. The project is situated
between the western and eastern termini of Poinsettia Lane. The property consists of 50.80
gross acres of land. Exhibit B at the back of this report provides a vicinity map for the
Poinsettia project.
Project Description
The proposed project includes mass grading of the portions of the project site planned for
development and the construction of 123 single family units on approximately 20 acres at the
northern end of the project site. The balance of the property is proposed to remain
undeveloped.
2234 FARADAY AVENUE • CARLSBAD, CA 92008 • (760) 438-4422 • FAX (760) 438-0173
Andrew Han
September 20, 2016
As part of the proposed project, approximately 1,600 linear feet of Poinsettia Lane will be
constructed within the project site to its full width. In addition, the project will construct an
offsite portion of Poinsettia Lane, approximately 325 linear feet, with full grading and partial
improvements. This will result in Poinsettia Lane providing a continuous link from Melrose
Drive to Interstate 5. Poinsettia Lane improvements will include a two-span bridge over the
canyon in the eastern portion of the site.
Finish grade for building pads within the project range in elevation from a low of 241.0 feet to
the highest building pad which is 253.fi feet in elevation.
Purpose of Study
The purpose of this study is to provide a water system analysis based upon the Jot layout and
street layout of the proposed project. This report provides a recommended public water
distribution system to serve the proposed residential development. Proposed improvements to
make recycled water available for landscape irrigation will be addressed within this report as
well.
Water System Design Criteria
The design criteria used in sizing the water distribution system piping for the Poinsettia
project are consistent with the City of Carlsbad Engineering Standards, Volume 2, Potable and
Recycled Water Standards, 2002 Edition. These criteria include a minimum desirable static
pressure of 60 psi and a maximum desirable static pressure of 125 psi.
Under Peak Hour Demand conditions, minimum residual pressure at any location must not be
less than 40 psi. Under a Maximum Day Demand with Fire Flow, a minimum residual
pressure of 20 psi must be maintained in the water system.
Peaking factors used in analyzing various demand scenarios were 1.65 for average day to
maximum day demands, and 2.9 for average day to peak hour demands.
DEXTER WILSON ENGINEERING. INC. PAGE 3
Andrew Han
September 20, 2016
Projected Water Deman.<:!
The expected water demand for the Poinsettia project was estimated using water demand
criteria from the latest. adopted design standards of the City of Carlsbad" These criteria speci(y
an average demand of 550 gallons per day per dwelling uniL Table 1 below presents the
projected onsite water demand for the project.
TABLE l
THE POINSETTIA PROJECT WATER DEMAND
Land Use Dwelling Demand Average Demand Units Factor
Single-Family Residential 123 550 gpdlunit 67,650 gpd = 47.0 gpm
Maximum day demand for the Poinsettia project is 111,623 gpd or 77.5 gpm. The peak hour
demand is 196,185 gpd or 136 gpm.
Fire Flow Requirements
The fire f1ow requirement for the Poinsettia project is based on the expected hydrant flow
requirement for single-family residential development. This requirement has been 1,500 gpm
in the City of Carlsbad. The fire hydrant flow requirement is analyzed under a Maximum Day
Demand scenario. Residual pressures in the water system under a fire flow scenario must be
20 psi or greater.
DEXT£R WILSON ENGINEERING, INC. PAGE 4
Andrew Han
September 20, 2016
Existing Potable Water System
The Poinsettia project is located in an area of the City of Carlsbad which is served by two
potable water pressure zones, the /;50 Pressure Zone and the 375 Pressure Zone. Figure 1
presents the existing water facilities in the vicinity of the Poinsettia project.
The existing 550 Pressure Zone system includes two pipelines in El Camino Real, and a 30"
pipeline in Cassia Road and Poinsettia Lane west of El Camino Real to the D-3 Reservoirs.
The 550 Pressure Zone water system closest to the Poinsettia project is at the intersection of
Poinsettia Lane and Cassia Road northwest of the project boundary.
The 375 Pressure Zone is served primarily from the D-3 Reservoirs which are located near the
intersection of Poinsettia Lane and Black Rail Road. A secondary source for the 37 5 Pressure
Zone is located at the intersection of Poinsettia Lane and El Fuerte Street which is east of El
Camino Real. At this location there is a 700 Zone/375 Zone Pressure Reducing Station which
feeds a 16" transmission main in Poinsettia Lane that extends west to El Camino Real.
Ambrosia Lane on the west side of the Poinsettia project includes a 12" 375 Pressure Zone
pipeline extending south from Poinsettia Lane. Exhibit B located at the back of this report
provides an overall schematic of the 375 Pressure Zone water system in the vicinity of the
Poinsettia project.
Building pad elevations within the Poinsettia project range between 241.0 and 253.5 feet. With
service from the 375 Pressure Zone, available (static) pressure at the building pads within the
development project would range between 53 psi and 58 psi. This available pressure does not
meet the City of Carlsbad minimum pressure standards. Therefore, the Poinsettia project will
be designed to obtain water service from the 550 Pressure Zone. With service from the 550
Pressure Zone, available static pressure at the building pads will range between 128 psi and
134 psi. While these pressures exceed the City's design standards by 3 to 9 psi, it is preferable
to exceed the maximum criteria rather than to fall below the minimum pressure criteria.
DEXTER WILSON ENGINEERING, INC. PAGE 5
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- - - -PROJECT BOUNDARY
- - - - - - - -375 ZONE POTABLE WATER
- - - - - - - -550 ZONE POTABLE WATER
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Andrew Han
September 20, 2016
Proposed Potable Water Systen1
The Poinsettia project is proposing tu obtain potable water service from the 550 Pressure Zone
system. This will be accomplished by extending a new 12" 550 Pressure Zone pipeline in
Poinsettia Lane from the existing 30" 550 Pressure Zone pipeline at the intersection of
Poinsettia Lane and Cassia Road into the project. The 550 Pressure Zone piping will loop
within the northern area of the site. In addition, a new 12" 550 Zone pipeline will he
constructed in Poinsettia Lane across the bridge to the eastern boundary of the Poinsettia
project. At the end of this pipeline there will be a new 550 Zone/375 Zone Pressure
Reducing/Pressure Sustaining Station constructed with the low pressure side of this station
connected to the existing 8" 375 Zone piping in Poinsettia Lane at Skimmer Court.
Redundancy for the 550 Pressure Zone service system is proposed to be provided by the
existing 8" 375 Pressure Zone pipeline in Poinsettia Lane at Skimmer Court and in Ambrosia
Lane. There is no proximate 550 Pressure Zone piping which can be used to complete a 550
Pressure Zone loop connection. The secondary connections to the 375 Pressure Zone system
will be accomplished as part of the new 550 Zone/375 Zone Pressure Reducing/Pressure
Sustaining Station in Poinsettia Lane at Skimmer Court. This facility will be discussed later
in this report.
For the development area at the north end of the property, the onsite water distribution system
will consist of 8" piping looped back to Poinsettia Lane. The hydraulic computer modeling
analyses discussed in the next section of this report verify the adequacy of the proposed 8"
onsite distribution piping system.
Figure 2 presents the layout of the proposed 550 Pressure Zone piping serving the Poinsettia
project; this figure shows the extension of 12" 550 Zone piping south and east in Poinsettia
Lane to the eastern subdivision boundary.
DEXTER WILSON ENGINEERING, INC. PAGE 7
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REDUCING/PRESSURE SUSTAINING
STATION PER CMWO GUIDELINES
SKIMMER COURT
/,,-EX. 8" POT. 375 ZONE ---,
I -l_ EX. 8" 384 RW ZONE r / _____ --:J
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LEGEND
PROPOSED POTABLE WATER
EXISTING 375 ZONE POTABLE WATER
EXISTING RECYCLED WATER
PROJECT BOUNDARY
FIGURE 2
DEXTER WILSON ENGINEERING. INC.
PROPOSED POTABLE
WATER SYSTEM LAYOUT
CONSULTING ENGIN[ERS POINSETllA l7C5,0) 4 38 '422
Andrew Han
September 20, 2016
Water System Computer Model
The University of Kentucky KYPIPE program was used to create a computer model of the
proposed water system for the Poinsettia project. This computer program utilizes the Hazen-
Williams equation for determining head-loss in pipes; the Hazen-Williams "C" value used for
all pipes is 120.
The input hydraulic grade line for the computer model is 540 feet for the 550 Pressure Zone
and 375 feet for the 375 Pressure Zone. The available hydraulic grade for the 375 Pressure
Zone is set at 375 feet because this is the bottom of tank elevation for the reservoirs in this
service zone.
Two separate hydraulic computer models were created in order to analyze the 550 Pressure
Zone service condition under normal operating conditions, and the 375 Pressure Zone service
condition as a redundant operating condition. Exhibit A at the back of this report presents the
Node and Pipe Diagram for the 550 Pressure Zone analysis showing the source node (the zero
node) to be located at the intersection of Cassia Road and Poinsettia Lane.
For the 375 Pressure Zone redundant service analysis, a larger area in the vicinity of the
Poinsettia project was included in the computer model to better simulate the operation of the
375 Pressure Zone as shown in Exhibit Band Exhibit B. l at the back of this report. This was
necessary particularly because the 375 Pressure Zone water system is widespread, and the
sources of supply are somewhat removed from the Poinsettia project location. It was also done
to verify that the existing 375 Pressure Zone water system is able to deliver the fire flow
requirement for single-family residential development for the Poinsettia project under a
redundant service scenario (when the 550 Zone is not in service to the Poinsettia project).
Water SystetnAnalysis and Results
The computer analyses performed for the Poinsettia project are presented in the appendices of
this report. Appendix A presents the results of the 550 Pressure Zone service analysis and
Appendix B presents the results of the 37 5 Pressure Zone redundant service analysis.
DEXTER WILSON ENGINEERING, INC. PAGE g
Andrew Han
September 20, 2016
550 Pressure ZOQe Analysis. Appendix A and Exhibit A present the results of the hydraulic
computer analysis for service to the Poinsettia project from the 550 Pressure Zone. As is
expected, working pressures within the Poinsettia project will exceed the City's desirable
maximum of 125 psi. Under maximum day demands plus 1,500 gpm fire flow, the minimum
residual pressure calculated is 115 psi within the site. With an 8" loop within the northern
portion of the site, pipeline velocities are below 10 feet per second during a maximum day
demand plus fire flow.
375 Pressure Zone Analysis. Appendix Band Exhibits B and B.l present the hydraulic
computer modeling analysis results for the redundant water service condition for the Poinsettia
project. Under the scenario that the 550 Pressure Zone connection in Poinsettia Lane
northwest of the Poinsettia project boundary is out of service, the Poinsettia project will obtain
water service from the 375 Pressure Zone by means of the proposed connection to the existing
375 Zone system in Poinsettia Lane at Skimmer Court.
The hydraulic computer modeling analyses show that maximum day demands plus fire flow
can be delivered to the Poinsettia project from the 375 Pressure Zone redundant connections in
Poinsettia Lane at Skimmer Court. Residual pressure within the Poinsettia project is a
minimum of 30 psi under maximum day demands plus 1,500 gpm fire flow. Under average day
demands, working pressures within the Poinsettia site will range between 51 psi and 57 psi.
Under peak hour demands, residual pressure ranges between 51 psi and 57 psi.
It must be recognized that the purpose of the redundant connections is to provide backup
service to the project for an interim time period until the 550 Pressure Zone service can be
reinstated. With this understanding, the 375 Pressure Zone redundant connections fulfill the
requirements.
Existing 10" Pipe in Easement Along Western Boundary. There is an existing 10"
ACP Class 150 pipe presently in service in the 20-foot easement along the western boundary of
the Poinsettia project which connects to the existing 12" 375 Zone water main in Ambrosia
Lane. The approximate extent of this pipeline is as shown in Figure 1. This existing water line
is expected to abandoned in place as there will be no development of the property in the vicinity
of this existing pipeline.
DEXTER WILSON ENGINEERING. INC. PAGE 10
Andrew Han
September 20, 2016
New PR/PS Station at Poinsettia Lane and Skimmer Court. The new 550
Zone/375 Zone Pressure Reducing/Pressure Sustaining Station shown at the location of
Poinsettia Lane and Skimmer Court has been requested by the City of Carlsbad Utilities
Department. It is of interest to the Utilities Department to be able to move 550 Zone water to
the east to supply the existing 375 Zone system east of the Poinsettia project. Because of this,
the City of Carlsbad has agreed to fund the cost of the new 550 Zone/375 Zone Pressure
Reducing/Pressure Sustaining Station. This acknowledgement offunding the cost is indicated
in an email correspondence from the Utilities Department dated March 20, 2015. A copy of this
email correspondence is provided in Appendix C of this report for reference.
The design of the new 550 Zone/375 Zone Pressure Reducing/Pressure Sustaining Station will
conform to the standards and guidelines of the Carlsbad Municipal Water District for such
facilities. For the pressure reducing/pressure sustaining function, an 8" Cla-Val will provide
adequate flow capacity. The minimum requirement for the redundant service to the 550 Zone
from the 370 Zone is to include an 8" check valve that will allow flow to go from the 375
Pressure Zone to the Poinsettia project. This valve can be an 8" Cla-Val with a check valve
feature, or it can be a separate 8" diameter bypass check valve.
The number and type of valves for this station are intended to be addressed during the design
development review with the City of Carlsbad Utilities Department. Features that are
expected to be included in the final design are:
1. A below grade vault to house the piping and valve(s) similar in size to the typical City of
Carlsbad pressure reducing station vaults.
2. A pressure relief valve to protect the 375 Pressure Zone from back-pressure from the
550 Pressure Zone.
3. A smaller bypass pressure reducing valve to maintain water quality in the redundant
connection piping.
4. Electrical power for lights and ventilation in the vault.
DEXTER WILSON ENGINEERING, INC. PAGE I I
Andrew Han
September 20, 2016
5 Instrumentation to monitor position of the control valves and relief valve as well as
vault intrusion.
6. Other requirements appropriate to the function of this pressure reducing/pressure
sustaining station.
Recycled Water System
The City of Carlsbad operates an extensive distribution system for recycled water. In the
vicinity of the Poinsettia project, there arc existing recycled water lines connected to two
different pressure zones. Figure 3 shows the existing recycled water lines in the Poinsettia
area of the City.
In Poinsettia Lane there is a 12" 550 Zone recycled water main extending to the north property
boundary of the Poinsettia project. This main is recommended to be extended into the
Poinsettia project in Poinsettia Lane as an 8" recycled water main to provide recycled water
service for irrigation.
On the east side of the project where existing Poinsettia Lane terminates at the east boundary
of the Poinsettia property, there is an existing 8" 384 Zone recycled water pipeline stubbed to
the Poinsettia subdivision boundary. This existing recycled water main is recommended to be
utilized for recycled water service along the new segment of Poinsettia Lane south and east of
the Poinsettia Lane bridge.
Available Recycled Water Pressure
By extending the existing 550 Zone recycled water line from Poinsettia Lane west of the
project, the Poinsettia project can make use of recycled water with sufficient pressure to
accommodate the irrigation needs of the project. Based on finish grade elevations on the
Poinsettia project ranging from 241 feet to 253.5 feet, the available static pressure at the points
of connection to the recycled water system within the project will be around 130 psi.
DEXTER WILSON ENGINEERING, INC. PAGE 12
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EXISTING 384 ZONE RECYCLED WATER
EXISTING 550 ZONE RECYCLED WATER
PROPOSED 550 ZONE RECYCLED WATER
DEXTER WILSON ENGINEERING, INC.
CONSULTING ENGINEERS
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EXISTING AND PROPOSED
RECYCLED WATER
FACILITIES
POINSETTIA
Andrew Han
September 20, 2016
Recycled Water Use .'\!-ca~
Exhibit C at the back of this report presents a plan of the Poinsetti,i project highlighting the
proposed areas within the site that are planned to be irrigated with recycled water. The main
areas to be irrigated with recycled water are the peripheral slopes around the site and the
several water quality basins on the site.
Two areas are not heing proposed for recycled water use: 1) front yard landscaping; and 2)
parkway landscaping. The reasons for not proposing to irrigate front yards and the streetscape
are several. First, it would burden the City's cross connection control program as the cross
connection testing would entail shutting down water service to several homeowners at a time.
Second, the narrow private streets being proposed do not have sufficient space in many places
to add a recycled water pipeline and provide the proper clearance to other utilities. Third, the
front yards and parkway landscaping does not constitute a large irrigated area. The City of
Carlsbad Utilities Department has indicated that no recycled water is to be used in front yard
and parkway landscaping in their February 27, 2015 email which is included in Appendix D for
reference.
Recommended Recycled Water System
The recommended recycled water system for the Poinsettia project includes extending an 8"
recycled water main in Poinsettia Lane from the north project boundary southeast in
Poinsettia Lane up to the southeast edge of development of the northern part of the project.
Irrigation points of connection will be located along Poinsettia Lane and irrigation system
mainlines will extend into the project to provide service to all the recycled water use areas.
The proposed recycled water use areas are shown on Exhibit C; also shown is the extent of the
proposed recycled water piping.
The landscaped/disturbed areas along Poinsettia Lane on the east side of the Poinsettia Lane
bridge are proposed to be irrigated using the existing 384 Zone recycled water piping in
Poinsettia Lane at the eastern subdivision boundary. This is depicted in Exhibit C. If any
extension of the existing 384 Zone recycled water pipeline is needed to service this area, it will
be minimal.
DEXTER WILSON ENGINEERING, INC. PAGE 14
Andrew Han
September 20, 2016
Conclusions an~ecomm.end!!..ti.on.s
The following recommendations and conclusions are made based on an analysis of the potable
water system and recycled water system for the Poinsettia project.
1. The project will be served by the potable water 550 Pressure Zone system. Figure 2
presents the recommended onsite water system layout and required distribution pipe
sizes.
2. Maximum static pressures at pad elevations within the Poinsettia project will range
between 128 psi and 134 psi based on the maximum expected hydraulic grade line of
550 feet delivered from the potable water 550 Pressure Zone.
3. The project fire flow requirement of 1,500 gpm with 20 psi residual is achieved at all
locations within the proposed development area.
4. Potable water service in the 550 Pressure Zone will be extended from the intersection of
Cassia Road and Poinsettia Lane.
5. Since the 550 Pressure Zone piping cannot be looped, the redundant water service
connection for the project will be provided via a check valve intertie to the 375 Zone at
Poinsettia Lane at Skimmer Court.
6. Recycled water service will be provided by extending a new 8" 550 Zone recycled water
line at the north boundary of the project in Poinsettia Lane. Exhibit C presents the
proposed recycled water use areas for the project and provides a schematic
representation of the onsite recycled water piping system.
7. All new potable water and recycled water pipelines recommended for the Poinsettia
project are to be designed to meet AWWA C900 DR 18 Class 235 for PVC pipe. The
potable and recycled water system designs must conform to the requirements of the
City of Carlsbad.
DEXTER WILSON ENGINEERING, INC. PAGE 15
Andrew Han
September 20, 2016
8. Individual pressure regulators must be installed on each potable water service in order
to maintain building service pressures below 80 psi in accordance with the California
Plumbing Code.
Thank you for the opportunity to assist with the potable water and recycled water planning for
the Poinsettia project. If you have any questions about the enclosed information and
recommendations, please do not hesitate to call.
Dexter Wilson Engineering, Inc.
Andrew Oven
AO:ps
Attachments
DEXTER WILSON ENGINEERING, INC. PAGE 16
APPENDIX A
COMPUTER MODELING RESULTS
550 PRESSURE ZONE SYSTEM ANALYSIS -NORMAL OPERATION
NODE AND PIPE DIAGRAM REFERENCE:
Exhibit A at the back of the report.
CONDITIONS MODELED:
l. Average Day Demands.
2. Maximum Day Demands plus 1,500 gpm Fire Flow at Node 519.
3. Maximum Day Demands plus 1,500 gpm Fire Flow at Node 505.
4. Peak Hour Demands.
Poinsettia Project in the City of Carlsbad
Public Potable Water System Analysis
550 Pressure Zone -Normal Operating Service Analysis
February 2, 2016
File Name: 663057A6
Dexter Wilson Engr., Inc.
FLOWRATE IS EXPRESS~~ IN GPM AND PRESSURE IN PSIG
A SUMMAHY OF THE ORIGlNAL DATA fOLLOWS
I.' I PE NO. NO=i!:.: NOS. LENGTH DIP.METER ROUGHt,;ESS tv:INOR 10::,s K FIXED GRADf<.:
/FEET) ( lNCHl::'S)
102 0 533 625.0 1 2. 0 120.0 . 00 540.00
401 502 5 3 3 513.0 8.0 120.0 .00
4 04 539 502 12 5. 0 8.0 120.0 . 00
419 536 519 313. 0 8. 0 120.0 .00
422 533 511 600.0 8. ll 120.0 .00
425 508 536 320.0 8.0 120.0 .00
426 508 502 380.0 8.0 120.0 .00
428 5ll 519 350.0 8. 0 120.0 . 00
4 37 539 505 113. 0 8.0 120.0 .00
THE NUMBER OF JUNCTION NODES= 8 WHICH DOES NOT AGREE WITH INPUT DATA
,JUNCTION NUMBER DEMAND ELEVATION CONNECTING PIPES
502 11. 80 246.CO 401 404 42 6
505 11. 8 0 244.CO 437
508 .00 250.00 425 426
511 5.85 251.00 422 428
519 11. 7 0 253.00 419 428
533 .00 247.00 102 401 422
536 5.85 251.00 419 42 5
539 .00 243.00 404 4 3 ~I
OUTPUT SELECTION: ALL RESULTS ARE OUTPUT EACH PERIOD
4 VALUES ARE OUTPUT FOR MAXIMUM AND MINIMUM PRESSURES
THIS SYSTEM HAS 9 PIPES WITH 8 JUNCTIONS , l LOOPS AND l FGNS
THE RESULTS ARE OBTAINED AFTER 7 TRIALS WITH AN ACCURACY
Poinsettia Project in the City of Carlsbad
Service from the 550 Pressure Zone
Average Day Demands
.00002
663057A6
PIPE NO. NODE NOS. FLOWRATE HEAD LOSS PUMP HEAD MINOR LOSS VELOCITY HL/1000
102 0 533 47.00 .01 .00 .DO . 13 .01
401 502 533 -26.19 -.01 .00 .00 -.17 -.02
404 539 502 -11.80 .00 .00 .00 -.08 -.01
419 536 519 -3.26 .00 ,00 .00 -.02 .00
422 533 511 20.BJ .01 .00 . 00 .13 . 02
42 5 508 536 2.59 .00 .00 .DO . 02 . 00
426 508 502 -2.59 . 00 .00 .00 -.02 .DO
428 511 519 14. 96 .00 .00 .00 . 10 .01
437 539 505 11. 80 .00 .00 .00 . 08 . 01
Page I of 6
Poinsettia Project in the City of Carlsbad
Public Potable Water System Analysis
550 Pressure Zone -Nor1nal Operating Service Analysis
February 2, 2016
File Name: 663057A6
Dexter \\'ilso11 E11gr., Inc.
,JUNCTlON ~UME:3r;F JE:"1AND c;rZADE LINE ELI::VAT~GN PEE:SSURL
S02 ll . 8 0 539.38 2 4 iS. 00 127.39
sos 11 . 8 0 S 3 l). 9 8 244.00 128.26
508 • (Ji) 539.98 2 50. 00 12 5. ";(j
511 S. (3 5 S 39. 08 251. 00 125.23
51 9 11 . 7 0 519.98 253.00 124.36
533 .00 53g_g9 247.00 126.96
536 5. 8 5 5 39. 98 251.00 125.22
539 . 00 539.98 243.00 128.69
MAXIMUM PRESSURES
539 .00 539.98 243.00 128.69
505 11.80 539.98 244.00 128.26
502 11. 8 0 539.98 246.00 127.39
533 .00 539.99 247.00 126.96
1'·11NlMUM PRESSURES
519 1:.10 539.98 253.00 124.36
536 5.85 539.98 251.00 125.22
511 5.85 539.98 251.00 125.23
508 .00 539.98 250.00 125.66
THE NET SYSTEM DEMAND 47.00
SUMMARY Of INFLOWS(+) AND OUTFLOWS(-) FROM FIXED GRADE NODES
PIPE NUMBER
102
E'LOWRATE
47.00
THE NET FLOW INTO THE SYSTEM F'ROM FIXbD GRADE NODES""
THE NET FLOW OUT OF THE SYSTEM INTO FIXED GRADE NODES
47.00
.00
A SUMMARY OF CONDITIONS SPECIFIED FO~ THE NEXT SIMULATION FOLLOWS
THE DEMANDS ARE CHANGED FROM ORIGINAL VALUES BY A FACTOR 1.65
THE FOLLOWING SP~Cl~'IC OE~AND CHANGES ARE MADE :
JUNCTION NUMBER DEMAND
519 1520.00
THb RESULTS ARE OBTAINED AFTER 3 TRIALS WITH AN ACCURACY .00175
Page 2 of 6
Poinsettia Project in the City of Carlsbad
Public Potable Water System Analysis
550 Pressure Zo11e ~ Norina! Operating Service A11alysis
Poinsettia Project in the City of Carlsbad
February 2, 2016
File Name: 663057A6
Dexter Wilson Engr., Inc.
Maximum Day Demand plus 1500 gpm Fire Flow at Node 519
F.i.PI:: NO. NODE NOS. E'LOWRA'l'I:.; HEAD LOSS PUMP HEAD MINOR LOSS VELOCITY
1G2 0 533 1578.24 4.28 .00 .00 4. 4 B
401 502 533 -702.69 -5. 65 . 00 .00 -4.48
404 539 502 -19.47 .OD .00 .OU -.12
419 .5 36 519 654.10 3.02 .00 . 00 4. 17
422 533 511 875.55 9.94 .00 .00 5.59
425 508 536 663.75 3.17 .00 .00 4. 2 4
426 508 502 -663.75 -3.77 . 00 .00 -4.24
428 511 519 865.90 5.68 .00 .00 5.53
4 3 7 539 505 19.47 .00 .00 .00 .12
JUNCTION NUMBER DEMAND GRADE LINE ELEVATION PRESSURE
502 19.47 530.07 246.00 123.10
505 19.47 530.06 244.00 123.96
508 .00 526.30 250.00 119.73
511 9.65 52 5. 7 8 251.00 119.07
519 1520.00 520.10 253.UO 115.74
533 . 00 535.72 247.00 125.11
536 9.65 523.12 251.00 11 7. 92
539 .00 530.06 243.00 124.39
MAXIMUM PRESSURES
533 . 00 535.72 24 7. OD 125.11
539 .00 530. 06 243.00 124.39
505 19.47 530.06 244.00 123.96
502 19.47 530.07 246.00 123.10
MINIMUM PRESSURES
519 1520.00 520.10 253.00 115.74
536 9.65 523.12 251.00 117. 92
511 9.65 525.78 251.00 119.07
508 .00 526.30 250.00 119. 73
THE NET SYSTEM DEMAND 1578.24
SUMMARY OF INFLOWS(+) AND OUTFLOWS(-) E'ROM ~'IXED GRADE NODES
PIPE NUMBER
102
FLOW RATE
1578.24
THE NET FLOW INTO THE SYSTEM FROM FIXED GRADE NODES=
THE NET FLOW OUT OF THE SYSTEM INTO FIXED GRADE NODES
1578.24
.00
A SUMMARY OF CONDITIONS SPECIFIED FOR THE NEXT SIMULATION FOLLOWS
HL/1000
6.S5
-: l. 02
-.01
9.65
16.56
9.92
-9. 92
l 6. 2 J
. 01
Page 3 of 6
Poinsettia Project in the City of Carlsbad
Public Potable Water System Analysis
550 Pressure Zone -Normal Operating Service Analysis
February 2, 2016
File Name: 663057A6
Dexter \\.Tilson Engr., I11c.
THE DE:MANDS ARE CHJ\):"GED FR0>1 OR.1.GIN.i;L VALUES BY A FACTOR = L. 65
THL FOLLO\oJING SPECIFIC OE~·lANU CHANGES ARE MADE :
JONCTJON NUMBER DEMAND
so~ ~s20.oo
THE RESULTS ARE OBTAINED AE"TER 4 TRIALS WITH AN ACCURACY .00017
Poinsettia Project in the City of Carlsbad
Maximum Day Demand plus 1500 gpm Fire Flow at Node 505
PIPE NO. NODE NOS. FLOW RATE HEAD LOSS PUMP HEAD MINOR LOSS VELOCITY HL/1000
102 0 533 1578.08 4.28 .00 .OD 4.48 6.85
401 502 533 -1049.64 -11.89 .00 .DO -6.70 -23.18
404 539 502 -1520.00 -5.75 .00 .00 -9.70 -46.01
419 536 519 -499.49 -1. 8 3 .00 .OD -3.19 -5. 8 6
422 533 511 528.44 3.90 . 00 .00 3.37 6.50
42 5 508 536 -489.83 -1.81 .00 .00 -3. 13 -5.65
42 6 508 502 489.83 2. 15 . 00 .00 3. 13 5.65
42 8 511 519 518.79 2.20 . 00 .00 3.31 6.28
437 539 505 1520.00 5.20 .00 .DO 9.70 46.01
JUNCTION NUMBER DEMAND GRADE LINE ELEVATION PRESSURE
502 19.47 5n. SJ 246.00 120.39
505 1520.00 512.88 244.00 116.52
508 .00 525.98 250.00 119.59
511 9.65 531.82 251.00 121.69
519 19.31 529.62 253.00 119.87
533 .00 535.72 247.00 125.11
536 9.65 527.79 251.00 119. 94
539 .OD 518.08 243.00 119.20
MAXIMUM PRSSSURES
533 .00 535. 72 247.00 12 5. 11
511 9.65 531.82 251.00 121.69
502 19.47 523.83 246.00 120.39
536 9.65 527.79 251.00 119.94
MINIMUM PRESSURES
505 1.520.00 512.88 244.00 116.52
539 . 00 518.08 243.00 119.20
508 .00 525.98 250.00 119.59
519 19.31 52 9. 62 253.00 119.87
THE NET SYSTEM DEMAND 1578.08
SUMMARY OF INFLOWS(+) AND OUTFLOWS(-) E'ROM FIXED GR.l'I.DE NODES
PIPE NUMBER FLOWRATE
Page 4 of 6
Poinsettia Project in the City of Carlsbad
Public Potable Water System Analysis
550 Pressure Zone -Normal Operating Service Analysis
102 1578.08
l'Hl NE1' FLOW INTO THE SYSTEM FROM E'IX~D G~AIJ~ NODES=
THE NET FLOW OUT OF THE SYSTEM INTO FIXED GRADE NODES
February 2, 2016
File Name: 663057A6
Dexter Wilso11 Engr., Inc.
1578.08
. ()0
A S\;MMAR'f DF CONDITlOt,.;S SPEClFlED FOR THI:: Nt:XT SIMULATION FOLLOWS
THE DEMANDS ARE CHAr,.;GED FROM ORIGINAL VALUES BY A FACTOR 2.90
THE RESUI,TS ARE OBTAINED AFTER 3 TRIALS WITH AN ACCURACY . 00117
Poinsettia Project in the City of Carlsbad
Peak Hour Demands
PIPE NO. NODE NOS. FLOWRATE HEAD LOSS PUMP HEAD MINOR LOSS VELOCITY HL/1000
102 0 533 136. 30 . 05 .00 .00 .39 .07
401 502 533 -75.95 -.09 .00 . 00 - . 4 8 -.18
404 539 502 -34.22 -.01 .00 . 00 -.22 -.04
419 536 519 -9. 4 6 .00 .00 .DO -.06 .00
422 533 511 60.35 .07 . 00 .00 . 3 9 . 12
42 5 508 536 7. 51 .00 . 00 .OD .05 .00
426 508 502 -7.51 .00 .00 .00 -.05 .00
428 511 519 43.39 .02 .DO .00 .28 .06
437 539 505 34.22 .00 .00 .00 .22 .04
JUNCTION NUMBER DEMAND GRADE LINE ELEVATION PRESSURE
502 34.22 539.86 246.00 127.34
505 34. 22 539.85 244.00 128.20
508 .OU 539.86 2 so. 00 125.61
511 16.97 539.88 251.00 125.18
519 33.93 539.86 253.00 124.31
533 .00 539.95 247.00 126.95
536 16.97 539.86 251.00 125.17
539 .00 539.86 243.00 128.64
MAXIMUM PRESSURES
539 .00 539.86 243.00 128.64
505 34. 22 539.85 244.00 128.20
502 34.22 539.86 246.00 127.34
533 .00 539.95 24 7. 00 126.95
MINIMUM PRESSURES
519 33.93 539.86 253.00 124.31
536 16.97 539.86 251.00 12 5. 1 7
511 16. 97 539.88 2 51. 00 125.18
508 .00 539.86 250.00 125.61
Page 5 of 6
Poinsettia Project in the City of Carlsbad
Public Potable Water System Analysis
.550 Pressure Zone -Normal Operating Service Analysis
fHE ~EI SYSTEM DEMAND 136.30
February 2, 2016
File Name: 663057A6
Dexter Wilson Engr,, Inc.
SUMMARY OF INFLOWS1+) ANG OUTFLOWS(-) ~'KOM ~'IXED GPADE ND8ES
FI PE.: NUMBE:i:?
102
FLOWRATE
l,~6. 30
THE NET FLOW INTO THE SYSTEM FROM FIXED GRADE NODES=
THE NET Fl.OW OUT OF THE SYSTEM INTO FIXED GRADE NODES
136.30
. 00
Page 6 of 6
APPENDIXB
COMPUTER MODELING RESULTS
375 PRESSURE ZONE SYSTEM ANALYSIS-REDUNDANT SYSTEM
NODE AND PIPE DIAGRAM REFERENCE:
Exhibit B and Exhibit B.1 at the back of the report.
CONDITIONS MODELED:
1. Average Day Demands.
2. Maximum Day Demands plus 1,500 gpm Fire Flow at Node 519.
3. Maximum Day Demands plus 1,500 gpm Fire Flow at Node 533.
4. Peak Hour Demands.
Poinsettia Project in the City of Carlsbad
Public Potable Water System Analysis
375 Pressure Zo11e -Redunda11t Service A11alysis
f'LO~RATE IS EXPRESSED IN GPM AN8 PRESSU~E lN PSIG
A SUMtv1ARY OF THE: ORIGINAL DATA t'-'.)LLOWS
February 2, 2016
File Name: 663057A8
Dexter \\'ilson Engr., l11c.
PIPE NO. NODE NOS. LENGTH DIAMETER kOUGHNESS MINOR LOSS K FlXED GRADE
(FEET) (.LNCH~S)
102 0 1 200.0 24.0 120.0 .00 375.00
105 1 4 2500.0 18.0 120.0 .OD
108 4 7 500.0 18.0 12C.0 .00
111 7 JO 950.0 l 4 . 0 120.0 .00
114 10 22 3800.0 12. 0 120.0 .00
117 13 43 1200.0 12.0 120.0 .00
12 6 22 l 3 2100.0 12.0 120.0 . 00
12 9 25 55 2600.0 12.0 120.0 .00
1 32 28 25 2100.0 12.0 120.0 .00
135 l 28 300.0 24.0 120.0 .00
138 31 16 1300.0 8.0 120.0 .00
141 34 40 500.0 12.0 120.0 .00
l44 37 34 7400.0 l 6. 0 120.0 .00
147 0 37 10.0 16.0 120.0 . 00 175.00
150 40 31 1100.0 8.0 120.0 . 00
153 43 16 800.0 8. 0 120.0 .00
156 40 46 650.0 8. 0 120.0 .00
159 16 46 500.0 8.0 120.0 . 00
168 55 58 250.0 12.0 120.0 . 00
171 58 22 2200.0 12.0 120.0 .00
401 502 533 513.0 8. 0 120.0 .00
404 539 502 125.0 B. 0 120.0 . 00
4 19 536 519 313.0 8. 0 120.0 .00
422 533 511 600.0 8.0 120.0 .00
425 508 536 320.0 8. 0 120. 0 . 00
42 6 508 502 380.0 8.0 120.0 .00
428 511 519 350.0 8.0 120.0 . 00
4 37 539 505 113. 0 8.0 120.0 .00
4 58 548 508 1000.0 12.0 120.0 .00
4 61 591 548 20.0 8.0 120.0 .00
THERE IS A CHECK VALVE IN LINS NUMBER461
4 64 31 591 130. 0 8.0 12 0. 0 .00
JUNCTION NUMBER DSMAND ELEVATION CONNECTING PIPES
l .00 370.00 102 105 135
4 .00 328.00 105 108
7 .00 303.00 108 111
10 .00 282.00 111 114
13 .00 190.00 11 7 12 6
16 .00 248.00 138 153 159
22 .00 136.00 114 12 6 l 71
25 .00 284.00 129 132
28 .00 354.00 132 135
31 .00 259.00 138 150 464
Prtge l of 10
Poinsettia Project in the City of Carlsbad
Puhlic Potable Water System Analysis
375 Pressure Zone -Redundant Service Analysis
34 . uo :! 8 5. 00 l 4 l
37 ,00 194.00 14 4
4 ,, u .00 266.00 141
0 .00 2 52-. 00 117
46 .00 228. 0() 1 :) C
55 • OC 249.00 129
58 .00 2 52. 0 0 168
502 11.80 2 4 6. U 0 401
505 li.80 244.00 4 37
50 8 .00 250.00 425
511 5.85 251.00 422
519 11.70 251.00 419
533 .00 247.00 401
53E '.). 8 S 2 51. 0 0 419
539 .00 243.00 404
548 .00 257.00 458
591 .00 257.00 461
144
147
150
153
159
168
l 7 l
404
42 6
428
428
422
425
4 3 7
461
4 64
156
42 6
458
February 2, 2016
File Name: 663057AS
Dexter \\7ilson Engr., Inc .
OUTPUT SELECTION: ALL RESULTS ARE OUTPUT EACH PERIOD
8 VALUES ARE OUTPUT FO~ MAXIMUM AND MINIMUM PRESSURES
THIS SYSTEM HAS 31 PIPES WITH 27 JUNCTIONS , 3 LOOPS AND 2 FGNS
THE RESULTS ARE OBTAINED AFTER 8 TRIALS WITH AN ACCURACY .00008
Poinsettia Project in the City of Carlsbad 663057AB
Service from the 375 Pressure Zone
Average Day Demands
PIPE NO. NODE. NOS. r'LOWRATE HEAD LOSS PUMP HBAD MINOR LOSS VELOCITY HL/1000
102 0 1 15.32 . 00 . uo .00 .01 . 00
10 5 1 4 8.54 .00 .00 .00 .01 .00
108 4 7 8.54 .00 . 00 .00 .01 .00
111 7 10 8.54 .00 .00 .00 . 02 .00
114 10 22 8.54 .OU .00 .oo .02 .00
117 13 43 15.32 . 00 . 00 .00 . 0 4 . 00
12 6 22 13 15.32 . 00 .00 .00 .04 .OD
129 25 55 6.78 .00 . 00 . 00 . 02 .00
132 28 25 6. 78 .00 .00 .00 . 02 .00
135 l 28 6.78 .00 .00 .00 .00 . 00
138 31 16 -21.87 -.02 .00 .OD -. 14 -.02
141 34 40 31.68 .00 .OD .DO .09 .00
144 37 J4 31.68 . 01 . 00 .00 .05 .00
147 0 37 31.68 .00 . 00 .00 .05 .00
1511 40 31 25.13 .03 .00 .00 . 16 .02
153 43 16 15.32 .OJ .00 .DO . 10 .01
156 40 46 6.55 .00 .OD .00 . 04 .00
Page 2 of 10
Poinsettia Project in the City of Carlsbad February 2, 2016
Public Potable Water System Analysis File Name: 663057A8
375 Pressure Zo11e -Redundant Service Anal:vsis Dexter \Vilson Engr., Inc.
159 16 46 -C.55 .00 . 00 . 00 - • C4 • Q(J
IE 8 55 58 6.78 .00 .00 .00 .02 .00
171 58 22 6.78 .00 .00 .00 .02 .00
401 502 533 l.G6 . 00 .00 .00 .01 ,00
404 539 5C2 -L.80 .00 . 00 .00 -.CB -.01
419 536 5 i_ 9 15.89 .00 . 00 .00 .10 .01
422 :) 3 3 s ~ l l.66 • OU . 00 .00 .01 .00
425 508 536 21.74 . 0 l .00 .00 . 14 .02
42 6 508 502 25.26 . 0 I . 00 .00 .16 . 02
428 511 519 -4.19 . 00 .00 .00 -.03 .00
4 37 539 505 ll. 80 . 00 .00 .00 .08 .OJ
458 548 508 47.00 . 0 l .00 .00 .13 .01
461 591 548 47.00 .00 .00 .00 . 30 .07
464 31 591 47.00 . 01 .00 .00 .30 .07
JUN CT IO:s.J NUMBER DEMAND GRADE LINE ELEVATION PRESSURE
1 . 00 375.00 370.00 2. 1 7
4 .00 375.00 328.00 20.37
7 . 00 375.00 303.00 31. 20
10 .DO 375.00 282.00 40.30
13 . 00 375.00 190.00 80.16
16 .DO 374.99 248.00 55.03
22 .00 375.00 136.00 103.57
25 .00 375.00 284.00 39.43
28 .00 375.00 354.00 9. 10
31 .00 374.96 259.00 50.25
34 .00 374.99 285.00 39.CO
37 .00 375.00 194.00 7 8. 4 J
40 .00 374.99 266.00 47.23
43 . 00 374.99 251.00 53.73
4E .00 374.99 228.00 63.69
55 .OD 375.00 249.00 54.60
58 .00 375.00 252.00 53.30
502 11 . 8 0 374.93 246.00 55.87
505 11.80 374.93 244.00 56.74
508 .00 374.94 250.00 54.14
511 5.85 374.93 251.00 53.70
519 11.70 374.93 253.00 52.84
533 . 00 374.93 247.00 55.44
536 5.85 374.94 251.00 53. 7 _;_
539 . 00 374.93 243.00 57.17
548 .DO 374.95 257.00 Sl.11
591 .00 374.95 257.00 51.11
MAXIMUM PRESSURES
22 .OD 375.00 136.00 103.57
13 .00 375.00 190.00 80.16
37 .00 375.00 194.00 78.43
46 .00 374.99 228.00 63.69
539 .00 374.93 243.00 57.17
505 11 . 8 0 374.93 244.00 56.74
502 11.80 374.93 246.00 55.87
533 .00 374.93 247.00 55.44
Page 3 of 10
Poinsettia Project in the City of Carlsbad
Public Potable Water System Analysis
375 Pressure Zone -Redundant Service Analysis
February 2, 2016
File Name: 663057A8
Dexter Wilson Engr., Inc.
l
28
4
7
34
25
l 0
40
THE NET SYSTEM DEMAND
MINIMUM
. 00
.00
. uo
.00
. 01)
. 00
.00
.00
PPESSUP.E:3
375.00
375.00
37 5, 00
]7 5. 00
374.99
"375.00
37:",.00
374.99
370.UO
3S4.00
328.00
3C3.00
285.0C
284.00
282.00
266.00
2. l 7
9. 10
20.37
31. 2 0
39.00
39. 4 3
40.30
4 7. 2 3
SUMMARY OF INFLOWS(+) AND OUTFLOWS(-;. FROM FIXED GRADE NODE.:S
PIPE NUMBER
102
147
FLOW RATE
15. 32
31.68
THE NEI' FLOW INTO THE SYSTEM FROM FIXED GRAUE NODES=
THE NET FLOW ou·r OF THE SYSTEM INTO FIXED GRADE NODES
47.00
.DO
A SUMMARY OF CONDITIONS SPECifIED FOR THE NEXT SIMULATION FOLLOWS
THE LJEMANDS ARE CHANGED FROM ORIGINAL VALUES BY A FACTOR 1.65
THE FOLLOWING SPECIFIC DEMAND CHANGES ARE MADE :
JUNCTION NUMBER
519
DEMAND
1520.00
THE RESULTS ARE OBTAINED AF'fER 3 TRIALS WITH AN ACCURACY .00223
Poinsettia Project in the City of Carlsbad
Maximum Day Demand plus 1500 gpm Fire Flow at Node 519
PIPE NO. NODE NOS. FLOW RATE HEAD LOSS PUMP HE:AD MINOR LOSS VSLOCITY
102 0 1 514.37 . 01 .00 .00 . 3 6
105 1 4 286.80 . l 0 .00 .00 • 3 6
108 4 7 286.80 .02 ,00 .00 .36
111 7 10 286.80 . 13 .00 .00 .60
114 10 22 286.80 1.11 .00 .00 . 81
117 13 43 514.37 1. 03 . 00 .00 1. 4 6
126 22 13 514.37 1. 80 .00 .00 1. 4 6
12 9 25 55 227.57 . 4 9 .00 .00 .65
132 28 25 227.57 .40 .00 .00 . 65
135 1 28 227.57 .00 .00 .00 . 16
138 31 16 -734.31 -15.55 .00 . 0 0 -4.69
Page
HL/1000
. 0 3
. 04
.04
. 14
. 2 9
. 8 6
. 8 6
. 19
. 19
. 01
-11.96
4 of 10
Poinsettia Project in the City of Carlsbad February 2, 2016
Public Potable Water System Analysis File Name: 663057A8
375 Pressure Zone -Redundant Service Analysis Dexter Wilson Engr., l11c.
l 4 J 34 40 1063.87 : . 65 • ()0 . [)() 3.02 3. 30
144 37 34 1063.87 0.01 .00 .00 l.70 . 81
147 0 37 lOGJ.87 . 01 .00 .00 1.70 .81
1 5 Cl 40 31 843.93 17.02 .00 .00 5. 3 9 15.47
1 '.) 3 43 16 S 14. 37 4.95 .00 ,00 3.28 6. l 9
156 40 46 21 CJ. 94 . 8 3 .00 .DO 1. 4 0 l. 2 8
1S9 16 46 -219.94 -.G4 .00 .00 -1. 4 () -1. 2B
168 55 58 227.57 .05 .00 ,00 .65 . 19
171 58 22 227.57 . 42 .00 .DO .65 . 19
4 0 l 502 533 547.75 3.56 .00 . 00 3.50 6.95
404 539 502 -19. 4 'J .00 .00 . 00 -.12 -.01
419 536 519 981.91 6.41 .00 . 00 6.27 20.48
422 533 511 547.75 4.17 .00 . 00 3.50 6.95
425 508 536 991.56 6.67 .00 . 00 6.33 20.86
426 508 502 586.69 3.00 .00 .00 3.74 7.89
428 511 519 538.09 2. 35 .00 .00 3.43 6. 72
4 37 539 505 19.47 .00 .00 .00 . 12 . 01
458 548 508 1578.24 G.85 .00 .00 4.48 6,85
461 591 548 1578.24 .99 ,00 .00 10.07 49,33
4 64 31 591 1578.24 6.41 .00 .00 10. 07 49.33
JUNCTION NUMBE8 DSMAND GRADE LlNE ELEVATION PRESSURE
1 .00 374,99 370.00 2.16
4 ,00 '374,89 328.00 20.32
7 .00 374.87 303.00 31 . 14
10 ,00 374.74 282.00 40.19
13 .00 371.83 190.00 7 B. 7 9
16 .00 365.85 248.00 51.07
22 .00 373.64 136.00 102.98
25 .00 37 4. S':I 284.00 39.26
28 . 00 374.99 354.00 9.10
31 .00 350,31 259.00 39.57
34 .00 368.98 285.00 36.39
37 . 00 374.99 194.00 78.43
40 . 00 367. 33 266.00 43.91
43 . 00 370.80 251.00 51 . 91
46 . 00 366.50 228.00 60.01
55 .00 374.10 249.00 54.21
58 ,00 374.05 252.00 52.89
502 19.47 333.06 246.00 37. 7 3
505 19.47 333.06 244.00 38.59
508 .00 336.06 250.00 37. 2 9
511 9.65 325.33 251.00 32. 21
519 1520.00 322.98 253.00 30.32
533 .00 329.50 247.00 35.75
536 9.65 329.39 251.00 33.97
539 .00 333.06 243.00 39.03
548 .00 342.91 257.00 37.23
591 .00 343.90 257.00 37.65
MAXIMUM PRESSURES
22 .00 373.64 136.00 102.98
13 .00 371.83 190.00 78.79
37 .00 374.99 194.00 78.43
Page 5 of 10
Poinsettia Project in the City of Carlsbad
Public Potable Water System Analysis
375 Pressure Zone -Redundant Service Analysis
February 2, 2016
File Name: 663057AS
Dexter \\'ilson Engr., Inc.
46 . 00 366. so
55 .00 374.10
58 . 00 J74.05
4 3 . 00 370.80
1 6 .00 365.35
MIN-.:MUM PRtSSURES
1 .00 l74.99
28 .00 3·14. gg
4 .00 374.89
'il 9 1520.00 322.98
7 . 00 374.87
511 9.65 325.33
536 9.65 329.39
533 . 00 329.50
THE NET SYSTEM DEMAND 1578.24
22 8. 0(;
249.00
2 52. 00
2 '.:1 l. 00
248.00
370.00
354.00
328.00
253.00
303.00
251.00
251.00
247.00
60.0]
54.21
52.89
5 ~ . 91
51. 0 7
2.16
9.10
20.32
30.32
31. 14
32. 21
33.97
35.75
SUMMARY OF INFLOWS(+) AND OUTFLOWS(-) FROM !::'IXED GRADE NODES
PlPE NUMBER
102
147
FLOWRATE
514.37
l063.87
THE NET FLOW INTO THE SYSTEM FROM E'IXED GRADE NODES=
THE NET FLOW OUT OE' THE SYSTEM INTO FIXED GRADE NODES
1578.24
.00
A SUMMARY OF CONDITIONS SPECIFIED FOR THE NEXT SIMULATION FOLLOWS
THE DEMANDS ARE CHANGED FROM ORIGINAL VALUES BY A FACTOR 1.65
THE FOLLOWING SPECIFIC DEMAND CHANGES ARE MADE :
JUNCTION NUMBSR
533
DEMAND
1500.00
THE RESULTS ARE OBTAINED AFTER 3 TRIALS WITH AN ACCURACY .00183
Poinsettia Project in the City of Carlsbad
Maximum Day Demand plus 1500 gpm Fire Flow at Node 533
PIPE NO. NODE NOS. FLOW RATE HEAD LOSS PUMP HEAD MINOR LOSS VELOCITY
102 0 1 514.14 . 01 .00 . 00 . 36
105 I 4 286.68 . 10 .00 .00 .36
108 4 7 286.68 .02 .00 .00 .36
111 7 10 286.68 .13 . 00 .00 .60
114 10 22 286.68 1.11 .OD . 00 . 81
117 13 43 514.14 1.03 .00 .00 1. 4 6
Page
HL/1000
. 0 3
. 04
. 04
.14
. 2 9
. 8 6
6 of 10
Poinsettia Project in the City of Carlsbad February 2, 2016
Public Potable Water System Analysis File Name: 663057A8
375 Prcssttrc Zo11e -Redundant Service A11alysis Dexter \~Tilson E11gr., I11c.
12. 6 22 ; ., 51·1 . .14 l. BO .00 .00 1 . 4 6 . 8 6
129 ?5 S5 227.47 .49 .00 .00 .65 . :,_ 9
132 28 25 227.47 . 40 .00 . 0 0 .GS .19
135 1 28 227.47 .00 .00 . 00 ' . , iO . 01
138 31 16 -733.99 -15.53 • CJO . 00 -4.68 -11.95
14 1 34 40 1063.41 l. 65 • ()0 .00 3.02 3.30
144 37 34 1 0 f. 3. 4 l 6. CJ l . 00 . 0 0 1. 7 0 . B 1
lr} 7 0 37 1063.41 .01 .00 .00 1. 7 0 .81
150 40 31 843,56 17. 0 l . 00 .00 5.38 15. 4E
153 43 16 514.14 4.94 ,00 . 0 0 3.28 6. 18
156 40 46 219.85 .83 ,00 .00 l. 4 0 1. 2 8
159 16 46 -219.85 - . 64 .00 .00 -1.40 -1. 2 8
168 55 58 227.47 .05 .00 .00 .65 .19
171 58 22 227.47 .42 .00 .00 .65 . 19
401 502 533 867.03 8.35 .00 .00 5.53 lG. 27
404 539 502 -19.47 .00 .00 . 00 - . 12 -.01
41._ 9 536 519 661.92 3.09 . 00 .00 4. 22 9,87
422 533 511 -632.97 -5.45 .00 .00 -4.04 -9.08
425 508 5 36 671.58 3.24 .00 • DO 4.29 10.14
426 508 502 905.97 6. 71 .00 .OD 5.78 17. 65
428 511 519 -642.62 -3.27 .00 .00 -4.10 -9.34
437 539 505 19.47 .00 .00 .00 . 12 . 01
458 548 508 1577.55 6.84 .00 .00 4.47 6.84
461 591 548 1577,55 .99 .00 • DO 10.07 49. 2 9
4 64 31 591 1577,55 E. 41 . 00 .00 10.07 49.29
JUNCTION NUMBER DEMAND GRADE LINE ELEVATION PRESSURE
1 .00 374.99 370.00 2.16
4 .00 374.89 328.00 2 0. 32
7 . 00 374.87 303.00 31. 14
10 .00 374.74 282.00 40.19
13 .00 371.84 190.00 78.80
16 .00 365.86 248.00 51. 07
cc "" .00 373.64 136.00 102.98
25 .00 374.59 284.00 39. 2 6
28 .DO 374.99 354.00 9.10
31 .00 350.33 259.00 39.58
34 .00 368.98 285.00 36.39
37 . 00 374.99 194.00 78.43
40 .00 367.34 266.00 43.91
43 .00 370.81 251. 00 51.92
46 .00 366.50 228.00 60.02
55 .00 374.10 249.00 54. 21
58 .00 374.05 252.00 52.89
502 19.47 329.39 246.00 36.13
505 19.47 329.38 244.00 37.00
508 .00 336.09 250.00 37.31
511 9.65 326.49 251.00 32. 71
519 19.31 329.76 253.00 33.26
533 1500.00 321.04 247.00 32. 09
536 9.65 332.85 251.00 35.47
539 . 00 329.39 243.00 37.43
548 .00 342.94 257.00 37.24
591 .00 343.92 257.00 37.67
Page 7 of 10
Poinsettia Project in the City of Carlsbad
Public Potable Water System Analysis
375 Pressure Zone -Red1111dant Service Analysis
February 2, 2016
File Name: 663057AS
Dexter \'.Tilson Engr., l11c.
MAXlMUM PRESSURES
22 . 00 373.E4 136.00 102.98
l ::-. 00 371.84 190,QO 78.80
37 .00 374.99 194.00 78.43
46 . 00 166.SU 228.00 60.02
ss . 00 37 4. 10 249.00 ')4 . 2 l
58 .00 374.05 252.00 52.89
4 3 .00 370.81 251.00 51.92
16 . 00 365.86 248.00 51.07
MINIMUM PRESSURES
l .00 374.99 370.00 2. 16
28 .00 374.99 354.00 9. l. 0
4 .00 374.89 328.00 20.32
7 . 00 374.87 30 3. ()() 31.14
533 1500.00 321.04 247.00 32. 09
511 9.65 32 6. 4 9 2 5 J.. 00 3 2 . 7 l
519 19. 31 329.76 253.00 J 3. 2 6
536 9.65 332.85 251.00 35.47
THE NET SYSTEM DEMAND 1577.55
SUMMARY OF lNfLOWS(+) AND OUTFLOWS(-) FROM FIXED GRADE NODES
PIPE NUMBER
102
147
FLOW RATE
514.14
1063.41
THE NET FLOW INTO THE SYSTEM FROM FIXED GRADE NODES=
THE NET FLOW OUT OF THE SYSTEM lNTO FIXED GRADE NODES
1577.55
. 00
A SUMMARY OF CONDITIONS SPECIFIED FOR THE NEXT SIMULATION FOLLOWS
THE DEMANDS ARE CHANGED FROM ORIGINAL VALUES BY A FACTOR 2. 90
THE RESULTS ARE OBTAINED AFTER 2 TRIALS WITH AN ACCURACY .00493
Page 8 of J 0
Poinsettia Project in the City of Carlsbad
Public Potable Water System Analysis
375 Pressure Zone -Redunda11t Service A11alysis
Poinsettia Project in the City of Carlsbad
Peak Hour Demands
PIPE NO. NODE NOS. FLOWRATE HEAD LOSS FllMP
1C2 0 l 44.42 . 00
105 1 4 24. 77 .OU
108 4 7 24.77 .OD
111 7 10 24.77 .00
114 10 22 24.77 .01
11 7 13 43 44.42 .01
126 22 13 44.42 .02
129 25 55 19.65 .01
132 28 25 19.65 .00
135 1 28 19.65 .00
138 31 16 -63.42 - . I. 7
141 34 40 91. 8 B .02
144 37 34 91.88 .06
147 0 37 91.88 . 00
150 40 31 72.88 . 18
153 43 16 44.42 .OS
156 40 46 18.99 . 01
159 16 46 -18.99 -.01
168 55 58 19.65 . 00
171 58 22 19.65 .00
401 502 533 4. 84 .00
404 539 502 -34.22 -.01
419 536 519 46.06 .02
422 533 511 4 . 8 4 .00
425 508 536 63.02 . 04
42 6 508 502 73. 28 .06
428 511 519 -12.13 • 0 0
437 539 505 34.22 .00
458 548 508 136.30 .07
461 591 548 136.30 . 01
4 64 31 591 136.30 .07
HE'.AD
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
. 00
.00
.00
.00
.00
.00
.00
.00
.00
.00
February 2, 2016
File Name: 663057A8
Dexter \\Tilson Engr., l11c.
MINOR LOSS VELOClTY HL/1000
.00 . 0 3 ,00
. 00 . 0 3 .00
.00 . 0 3 .00
.00 .05 .00
.DO . 07 .00
.00 .13 . 01
.00 .13 . 01
.00 . 0 6 .00
.00 . 0 6 . 00
.00 . 01 .00
.00 - . 4 0 - . 13
.00 . 2 6 . 04
.00 . 15 . 0 l
.00 . 1 S . 01
.00 . 4 7 . 17
.00 . 2 8 .07
. 00 . l 2 .01
. 00 -.12 -.01
. 00 . 0 6 .00
.00 .06 .00
.00 .03 .00
.00 -.22 -.04
.00 . 2 9 . 07
.00 . 0 3 .00
.00 . 4 0 .13
.00 . 4 7 .1 7
.00 -.08 -.01
. 00 .22 . 04
.00 .39 .07
.00 . 8 7 .53
.00 .87 .53
JUNCTION NUMBER DEMAND GRADE LINE ELEVATION PRESSURE
1 .00 375.00 370.00 2 . l 7
4 .00 375.00 328.00 20.37
7 .00 375.00 303.00 31.20
10 .00 375.00 282.00 40.30
13 .00 374.97 190.00 80.15
16 .00 374.90 248.00 54.99
22 .00 374.99 136.00 103.56
25 .00 375.00 284.00 39.43
28 .00 375.00 354.00 9.10
31 . 00 374.74 259.00 50.15
34 . 00 374.94 285.00 38.97
37 .00 375.00 194.00 78.43
40 .00 374.92 266.00 47.20
43 .00 374. 96 251.00 53.71
46 .00 374.91 228.00 63.66
Page 9 of 10
Poinsettia Project in the City of Carlshad
Puhlic Potable Water System Analysis
375 Pressure Zone -Redundant Service Analysis
ss . 01) 374.99
58 .00 374,99
502 34.22 374.52
505 34. 22 374.51
508 .00 374.58
511 16.97 37 4. 52
Sl 9 33.93 37,;. 52
533 .00 374.52
536 16. 97 374.54
539 .00 374.51
S48 .00 374.66
591 .00 374.67
MAXIMUM PRESSURES
22 . 00 374.99
1 3 .00 374.97
37 .00 375.00
46 .00 374.91
539 .00 374.51
505 34. 22 374.51
502 34.22 374.52
533 .00 374.52
MINIMUM PRESSURE:S
l .00 375.00
28 .00 375.00
4 .00 375.00
7 .00 375.00
34 .00 374.94
25 .00 375.00
10 .00 375.00
40 .00 37 4. 92
THE NET SYSTEM DEMAND 13 6. JO
249.00
2'.)2.00
246.00
244.00
250.00
2 :Jl. 00
253.00
247.00
251.00
243.00
257.00
257.00
136.00
190. 00
194.00
228.00
243.00
244.00
246.00
247.00
370.00
354.00
328.00
303.00
285.00
284.00
282.00
266.00
February 2, 2016
File Name: 663057A8
Dexter \\rilson Engr., Inc.
54. GQ
5 3. 30
55.69
53.99
53.S2
52. 66
55. 2 6
53.53
56.99
50.98
50.99
103.56
80. 15
78.43
63.56
56.99
56.55
55.69
55. 2 6
2.17
9. 10
2 0. 37
31. 2 0
38.97
39.43
40.30
47.20
SUMMARY OF INFLOWS(+} AND OUTFLOWS(-) FROM FIXED GRADE NODES
PIPE NUMBER
102
147
FLOW RATE
44.42
91.88
THE NET FLOW INTO THE SYSTEM FROM FIXED GRADE NODES=
THE N8'f FLOW OUT OF THE SYSTEM INTO ~'IXED GRADE NODES
136.30
.00
Page 10 of 10
APPENDIXC
CORRESPONDENCE FROM THE CITY OF CARLSBAD
REGARDING THEIR COST PARTICIPATION IN THE
550 ZONE/375 ZONE
PRESSURE REDUCING/PRESSURE SUSTAINING STATION
From:
To:
Cc:
Subject:
Date:
Hi John,
Lili (J.C.QL; 1L.i.,.11LC1Jcts.:J!; .~;1,U.JJc,.<:.:J.::
FW: Poinsetlia 61 · Water Requirement!.
Monday, March 23, 2015 9:21:56 AM
CMWD determined that Poinsettia looping is needed independent of the Ambrosia Lane
connection. A new 8 inch water main will connect to an existing 375 pressure zone pipeline near
the intersection of Poinsettia Lane and Skimmer Court via a pressure sustaining/reducing facility.
CMWD will reimburse developer for design and construction of the pressure sustaining/reducing
facility, but not for the 8-inch pipeline within Poinsettia Lane.
Please see the e-mail below from David Ahles that surnmarizes CMWD water requirernents for
Poinsettia 61 Project.
Please let me know if you have any questions or want to discuss this further.
Thanks,
l_ City of
c:arlsbad
Tecla Levy, PE
Associate Engineer
Engineering
City of Carlsbad
1635 Faraday Avenue
Carlsbad, CA 92008
www carlsbadca gov
P: 760-602-2733
F: 760-602-1052
tecla !evy@carlsbadca gov
Connect with 11.,
From: David Ahles
Sent: Friday, March 20, 2015 11:15 AM
To: Tecla Levy
Cc: Kirsten Plonka
Subject: RE: Poinsettia 61 -Water Requirements
The Utility Department, based on discussions 1ivith the Public \Vorks Di1·ector has made the
foi!ov,rir:g determination for Water and Recycled Water Requiren1cnts for the Poinsettia 61
Development.
Water:
1. The entire project including the propo:::.ed area located along Ambrosia Lane will need to
be supplied from the 550 Pressure Zone.
2. No private pumps or pressure boosters will be allowed. City Standard of 60 psi Minimum
required.
3. Poinsettia Lane looping is required. This will involve the construction of a new 8-inch PVC
water main along the entire new roadway independent of the Ambrosia Lane area. This
new water main will connect to the existing 550 pressure zone pipeline near the
intersection of Poinsettia Lane and Cassia Road at the northerly end. The new 8-inch water
main will connect to an existing 375 pressure zone pipeline near the intersection of
Poinsettia Lane and Skimmer Court via a pressure sustaining/reducing facility.
4. The new pressure sustaining/reducing facility shall be constructed to CMWD's Standards
and include electrical and SCADA.
5. CMWD to reimburse developer for design and construction of the pressure
sustaining/reducing facility, but not for the 8-inch pipeline within Poinsettia Lane. CMWD
will utilize an existing CIP Project which was originally to be used oversize the pipeline in
Poinsettia Lane through the development. This CIP Project was developed to provide water
supply to the 375 zone at the easterly boundary of the project. By constructing the
pressure sustaining/reducing facility, the District will be able to supply water to the 375
zone and eliminate the need for pipeline oversizing.
6. Ambrosia Lane area will require 550 zone service. This will require the construction of a
new pipeline constructed within Ambrosia Lane from Oocena Road or a new pipeline
extending along and existing CMWD waterline easement from the Poinsettia Development
Area.
7. Traditional looping will not be required for the Ambrosia area. A simple connection
consisting of a check valve installed in a vault to the existing 375 zone pipeline will be
sufficient.
Recycled Water:
1. The Poinsettia Development Area will require 550 zone Recycled Water north of the
proposed bridge by construction of a new 8-inch RW Main within Poinsettia Lane. The area
South/East of the proposed bridge will be served via the 384 zone by extend a 8-inch RW
Main from Skimmer Court. No looping is required.
2. Recycled Water is not required for the Ambrosia Lane Development Area.
Dove
David P. Ahles, P.l.
s:~:11:Jr F ngir:ct.';
S'J~)O El Carnino nea!
Cirlsl>,,d, et, 92008
Office: (760) 603· 7350
APPENDIXD
CORRESPONDENCE FROM THE CITY OF CARLSBAD
REGARDING NO RECYCLED WATER USE REQUIRED FOR
FRONT YARD LANDSCAPING
AND STREET PARKWAY LANDSCAPING
From:
To:
Subject,
Date:
David Atiles
!11.'!,,",'i (Jv;rJ
RE: Poinsettia 61 Mtg at 10 Today
Friday, February 27, 2015 9:58:40 AM
RW Water as shown on your map is all that is required. Front yards and street mow
strip will not be required to use RW due to cross connection testing concerns.
Dave
Sent from my T-Mobile 4G LTE Device
--------Original message --------
From: Andrew Oven <Andrew@dwilsoneng.com>
Date:02/27/2015 8:35 AM (GMT-08:00)
To: David Ahles <David.Ahles@carlsbadca.gov>
Cc:
Subject: Poinsettia 61 Mtg at 10 Today
David,
I have a 10 am n1eeting for the Poinsettia 61 project today. Will I hear back from you on the RW
issue before then'!
Andrc\v Oven, P.E,
Dexter Wilson Engineering. Inc.
2234 Faraday Avenue
Carlsbad, CA 92008
(760) 438-4422
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NO'TE: NODE (())AT INTERSECTION
OF CASSIA ROAD AND POINSETTIA
LANE NOT SHOWN ON EXHIBIT
'
SKIMMER COURT
(.--EX. 8" POT. 375 ZONE ---,
I
-J_ EX. 8" 384 RW ZONE r : _____ -?
---~---_!'_OI!fSETTIA LANF!_ ___ ..f
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LEGEND
PROPOSED 375 ZONE POTABLE WATER
EXISTING 375 ZONE POTABLE WATER
EXISTI NG RECYCLED WATER
PROJECT BOUNDARY
COMPUTER MODEL NODE NUMBER
COMPUTER MODEL PIPE NUMBER
EXHIBIT A
ONS11E NODE AND PIPE DIAGRAM
550 ZONE
DEXTER WILSON ENGINEERING, INC.
CONSUL nNG ENGINEERS POINSETTIA <7Gel 4 38 44ZZ
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--.~-<~,,\~ I
\ .... ,____ ~' _ ---=---,-.,._ ,, / EX. 8" 384 RW ZONE ~ -----1----f
' I ------".. ·-I ---~---_!_OINSETTIA LANE_ ___ -J
I -------------
1 1 / ; EX. 8" POT. 375 ZONE
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(, .... ORIOLE COURT -f
EX. 8" POT. 375 ZONE
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SCALE: 1 " = 250'
0 250
•
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LEGEND
PROPOSED 375 POTABLE ZONE WATER
EXISTING 375 POTABLE ZONE WATER
PROJECT BOUNDARY
NODE PRESSURE (LESS THAN 20 PSI)
NODE PRESSURE (20 -40 PSI)
NODE PRESSURE ( 40 -60 PSI)
NODE PRESSURE (60 -80 PSI)
NODE PRESSURE (80 -120 PSI)
NODE PRESSURE (GREATER THAN 120 PSI)
EXHIBIT A.1
AVERAGE DAY DEMAND
§-~FEET
DEXTER WILSON ENGINEERING, INC.
CONSULTING ENGINEERS POINSETTIA (760) 4'138-4422
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---~---_ _!'OINSETTIA LANE_ ___ -f
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1 J EX. 8'' POT. 375 ZONE
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EX. 8" POT. -:S-75 ZONE
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•
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LEGEND
PROPOSED 375 POTABLE ZONE WATER
EXISTING 375 POTABLE ZONE WATER
PROJECT BOUNDARY
NODE PRESSURE (LESS THAN 20 PSI)
NODE PRESSURE (20 -40 PSI)
NODE PRESSURE ( 40 -60 PSI)
NODE PRESSURE (60 -80 PSI)
NODE PRESSURE (80 -120 PSI)
NODE PRESSURE (GREATER THAN 120 PSI)
EXHIBIT A.2
~-~FEET DEXTER WILSON ENGINEERING. INC.
MAXIMUM DAY DEMAND
PLUS 1,500 GPM FlRE FLOW
AT NODE 519
CONSUL TING ENGINEERS
(760) 4 38 4422 POINSETTIA
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SCALE:
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DEXTER WILSON ENGINEERING, INC.
CONSUL TING ENGINEERS
(760) 4 38-4422
EXHIBIT A.:J
MAXIMUM DAY DEMAND
PLUS 1,500 GPM FIRE FLOW
AT NODE 505
POINSETTIA
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EX. 8" POT. 375 ZONE
~
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SCALE: 1" = 250'
0 250
LEGEND
PROPOSED 375 POTABLE ZONE WATER
- - - - -- --EXISTING 375 POTABLE ZONE WATER
PROJECT BOUNDARY
• NODE PRESSURE (LESS THAN 20 PSI)
0 NODE PRESSURE (20 -40 PSI)
0 NODE PRESSURE ( 40 -60 PSI)
• NODE PRESSURE (60 -80 PSI)
0 NODE PRESSURE (80 -120 PSI)
• NODE PRESSURE (GREATER THAN 120 PSI)
EXHIBIT A.4
s-~FEET
DEXTER WILSON ENGINEERING, INC.
MAXIMUM DAY DEMAND
PLUS 1,500 GPM FIRE FlOW
AT NODE 521
CONSULTING ENGINEERS
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LEGEND
--PROJECT BOUNDARY
- - - - - - - - -EXIS11NG 375 ZONE POTABLE WATER
-------PROPOSED 375 ZONE POTABLE WATER
®
DE XTER WILSON ENGINEERING, INC.
CONSULTING ENGINEERS
76CH 438-4422
COMPUTER MODEL NODE
COMPUTER MODEL PIPE
EXHIBIT B
NODE AND PIPE DIAGRAM
375 ZONE REDUNDANT SYSTEM
POINSETllA
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01 'Pt ~1)4-SYSTEM ANALYSIS
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SKIMMER COURT -----------------------EX. 8" POT. 375 ZONE
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LEGEND
PROPOSED 375 ZONE POTABLE WATER
---------------------EXISTING 375 ZONE POTABLE WATER
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DEXTER WILSON ENGINEERING, INC.
CONSULTING ENGl'IEERS
<760) 4 36 4422
EXISTING RECYCLED WATER
PROJECT BOUNDARY
COMPUTER MODEL NODE NUMBER
COMPUTER MODEL PIPE NUMBER
EXHIBIT B.1
ONSllE NODE AND PIPE DIAGRAM
375 ZONE REDUNDANT SYSlEM
POINSETTIA