Engineering Service
Water Quality Monitoring
Doc.No.: ESP03
Revision No.: 00
Effectivity Date: 16Jan2017
Page 1 of 3
Revision Status
This list identifies the revisions made in this section. The date refers to the date this section
was made effective and implemented and not to the date the document was signed or printed.
Rev.
No.
Pages
00
All
Details
First issuance / release of procedure
Date of
Issuance and
Effectivity
16Jan2017
Prepared by:
Reviewed by:
Approved by:
Irene Cuaro
Draftsman-B
Redemir Magnaye
Engineering Assistant-A
Benedicto Capule
EDM-B
Tanauan Water District Quality Management System
Engineering Service
Water Quality Monitoring
Doc.No.: ESP03
Revision No.: 00
Effectivity Date: 16Jan2017
Page 2 of 3
1) Purpose:
a) This procedure describes the sub-process of water quality monitoring which is necessary for
Tanauan Water District (TWD) to continue to provide potable water to its customers.
2) Scope
a) Covers bacteriological & physical chemical test, and residual related activities.
3) Responsibilities
a) Water Quality and Production Section – is the team, under Engineering Service division,
responsible for the monitoring of water quality, ensure compliance to applicable standard and
resolving issues related to water quality, if any.
4) Definitions
a) Chlorination – An assurance of protection of the microbiological quality and the process of
adding the element chlorine to water disinfection to make it fit for human consumption as
drinking water. (PNSDW 2007)
b) Residual Chlorine – An indication of sufficiency of treatment or chlorination. (PNSDW 2007)
c) Physical Chemical Test - a laboratory test conducted to determine the acceptability of the
physical (e.g. taste, odor, color, turbidity, hardness,pH) and chemical properties of water (e.g
aluminum, chloride,copper, hydrogen sulphide, iron, manganese , sodium, sulphate, total
dissolved solids, zinc).
d) Sampling point - refer to taps or faucets where water samples are taken on a regular or random
basis. (PNSDW 2007)
5) Guidelines
a) Bacteriological test shall be conducted at least once a month, not later than the 2nd week of
each month.
b) Acceptable limits for each physical and chemical property shall complied with the requirements
stipulated in Article V, item 1.4.5, table 1 of PNSDW 2007.
c) Tests shall be conducted by DOH accredited third party laboratory only.
Tanauan Water District Quality Management System
Doc.No.: ESP03
Revision No.: 00
Engineering Service
Effectivity Date: 16Jan2017
Water Quality Monitoring
Page 3 of 3
6) Procedures
Responsible
Activities
Water
Quality
Monitoring
Team
Water Sampling
Schedule
WQP
Section
Assistant
Check residual
chlorine
A
Prepare materials &
vehicles
Record results in the
Daily Water Sampling
Form
Obtain access &
permission
Inspect surrounding of
the sampling point
Disinfection of
sampling point
Record result and
findings
Obtain and store
water sample
Send water samples
to third party
laboratory
Prepare & submit
Microbiological Test
Results & Summary
Report
Test water samples,
prepare and submit
test results
Third Party
Laboratory
A
WQP
Supervisor
Engineering
Service
Division
Manager
Review and endorse
microbiological test
report
Submit Monthly report
of Microbiological
Test to LWUA
Report results to
General Manager
End
7) Related Forms
a) ESF03 Microbiological Test Result
8) Related Documents
a) Philippine National Standards for Drinking Water (PNSDW) of 2007 of the Department of Health
(DOH)
Tanauan Water District Quality Management System