Water audit: evaluation of water consumption in International House II (IH II) at Cavite State University Main Campus / by Harvey D. Mariga and Mike Ismael V. Matuto.

Design Project (Bachelor of Science in Civil Engineering) Cavite State University.

Includes bibliographical references.

College of Engineering and Information Technology (CEIT), Department of Civil Engineering

MARIGA, HARVEY D. and MATUTO, MIKE ISMAEL V. Water Audit: Evaluation of
Water Consumption in Selected Buildings at Cavite State University — Main Campus
(Cluster V). Bachelor of Science in Civil Engineering. Cavite State University, Indang,
Cavite. June 2019. Adviser: Engr. Larry E. Rocela
Water audit refers to a series of conducting periodic exercises to determine water
supplied into the distribution system as well as water loss and/or used within the distribution
system. The water audit was conducted at International House II (I1-1 II) at Cavite State
University — Main Campus The study was conducted from October 2018 to March 2019 at
Cavite State University. The study addressed the need of Cavite State University on installing
water meter and gate valve on each building as well as conserving ground water. This project
aimed calculate the approximate water consumption rate, water losses rate and percentage of
losses of the selected buildings.
The main objective of the study was to conduct water audit in selected buildings at Cavite State
University — Main Campus. Specifically, determine the rate of losses and consumption rates;
identify and measure the specific locations of water losses; determine the causes of these
losses; and develop the most effective and economical water plan to mitigate these losses. The
study provided tabulated water meter readings, computations of water losses and consumption
rates and their equivalent price in current water meter pricing in Indang, Cavite (See Appendix
1, Tables 1-5 for water meter readings. Appendix 1, Tables 6-10 for water consumption and
losses rates. Appendix 1, Table 12 for summary).
The study also provided floor plans, plumbing layout, and water losses marking for
identifying the exact location of losses per building (See Appendix 2, Figures 17-46). Finally, the
water losses and consumption graph, water evaluation form and efficiency plan, cost estimates
and documentation on installing water meter were also provided to be able to determine the
causes of the losses. (See Appendices 3, 5, 6, and 7 respectively) The water audit was
conducted as per the water audit methodology of the American Water Works Association
(AWWA). The total amount of the pipes, fittings and fixtures recommended for replacement
estimates is P 578,190.75 (See Appendix 6). After the analysis and computations, the building
was proven to have an average scenario of loss 9%.
The researchers recommended the general repairs on the International House II ( IFI II)
because of the faulty faucets and sinks. And researchers finally recommended the water audit
of remaining buildings of Cavite State University — Main Campus. The design project
conducted could be used by other researchers as reference of procedure to conduct water
audit. It is highly recommended that the suggested repairs and replacement of fixtures should
he done to minimize the expected water loss in the selected building. After the individual water
audit on each building has been established the authors highly recommend the to have a
centralized water audit in the whole University, with a more detailed analysis at most one-month
water meter reading and must be conducted once a year to achieve accuracy of the study.
The authors believe that if water audit was conducted all throughout the university, it will
help to save as much as 30 percent of the energy consumption since water supplied in the
buildings was pump generated.

Submitted to the University Library 08/14/2019 DP-714