ST9302-CS 930608WATER SYSTEM ANALYSIS
LOGICAL PROGRESSION OF TASKS
NOTE: Rady and Associates will work closely with the city to ensure all requirements
are satisfied and client expectations are met in a timely fashion.
I'' 5)
,/6)
Data Collection: System
Identify location, type, age and size of existing piping network
Identify location, size, and overflow elevations of water towers
Identify location and size of ground storage tanks and pumps including
head discharge relationships and any instrumentation/operation
parameters
~/~) Identify locations and characteristics of pressure regulating valves and rate of flow
controllers
Identify pressure plane boundaries
Obtain topographic map of service area
Identify locations and capacity of water supply sources ie. wells, water treatment
plants, and outside purchases
,/8) Obtain population, number of co[mections, and land use (current and future
projections) for the city
~9) Identify water conservation measures
Data Collection: Water Demands
~) Locate historical water use and pumping records
,..~) Annual demands: average day, max. day, max. hour, and diurnal distribution
~o) Identify large volume users
~ci Obtain sampling of meter books to determine average water demand per type
of connection
· /d) Include any periods of water rationing or other unusual circumstances
A) Obtain land use map and meter book
C. Development and Calibrate K-PIPE model
.~) Work with fire/water department personnel on planning and performing flow tests
/ 2) Obtain status of every pump and elevated tank simultaneously with the checking of
residual pressure and flow at selected locations
K3) Obtain water demand for the days of flow testing
>(4) Prepare computer model for system
'~ 5) Calibrate computer model against flow test. results
/2)
~4)
D. System Analysis
1) Existing system evaluation
6o ,,.~-~./a) Evaluate supply sources and water system components ie. elevated tanks,
ground storage tanks, pumps, and transmission lines against Texas Water
Commission Rules and Regulations, insurance industry standards, and specific
system demands using present max. day demands and an extended period
simulation which includes max. hour and fire flows superimposed on max. day
and average hour demands
~ b) Determine system deficiencies and potential remedial solutions
Evaluate future conditions and system improvements needed to meet future system
requirements (see 6a.)
Incorporate future requirements into present system and develop a system
improvement plan that is compatible with future system requirements
Prepare a cost projection and capital improvement plan to implement the selected
course of action
E. Report
i) Prepare final report outlining the evaluation, recommendations, and selected plan
for final approval by the city. As stated above Rady and Associates will work
closely with the city and communicate on a regular basis the status of the analysis.