2013‐02‐18

Septage Management Experience in
The East Zone of Metro Manila

Mark Tom Mulingbayan
Manila Water Company
19 February 2013

Securing the Future Today

Privatization of water utility operations in Metro Manila

Metropolitan Waterworks andSewerage System (MWSS)
CONCESSIONAGREEMENTWEST ZONE

EAST ZONE

1997 to 2022, extended to 2037

21

2013‐02‐18

Sanitation Challenges
More than 80% of Metro
Manila uses septic tanks
most of which are
improperly designed and
not well‐well‐maintained~31% of illnesses monitored
f a 5‐yearfor5
periodi d werecaused bywater ‐ borne sources

3Manila Water’s wastewater service expansion strategies

Septic Tank Desludging &Septage Treatment• septic tank desludging forcustomers every 5 years• septic tank sludge is sent to
septage treatment facilities

Decentralized
Separate SewerSystems• for areas with pre- existing
separate sewer networks

Combined SewerDrainage Systems• for areas served by individual
septic tanks and with noexisting sewer network• intercept graywater from street
canals for full treatment42

2013‐02‐18

Conditions before Privatization
Water Supply Availability
3.1M Customers

LEAKSILLEGALCONNECTIONS

26%

LOW WATERPRESSURE/NO WATERPOOR
CUSTOMERSERVICE

Low Sewer Coverage,
No Septage Management Service

55

Fast track Sewerage and Septage Management
Plans
100%

Marikina River
Catchment

San Juan River
Catchment

3%

16%

23%
Pasig River
Catchment
aguna Lakeake
Laguna

1997

2008

2010

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2013‐02‐18

Accomplishments• 78 Vacuum tankers
for desludging• 2 Septage Treatment
North SpTP
586 m3/day

Plants (SpTP)• Desludged morethan 70%
households todate
LEGEND
Communities served

South SpTP
814 m3/day

7

 For domestic customers
 Scheduled for non‐seweredcommunities every 5 years Service does not include opening
and sealing of septic tanks

Requirements• Manila Water customer
N payment arrears• No• Accessible84

2013‐02‐18

Septage Management System Overview

Desludging Works

Wastewater Treatment

Biosolids Disposal

Septage Treatment
and Dewatering
9Inaccessibility Larger capacity trucks ‐ forwide roads Smaller capacity – for areas
with difficult or narrow access Vacuum Trucks Capacity:• 10m3• 5m3
• 1.5m3

105

2013‐02‐18

Inefficiencies
 Desludging ‘sweeps’ onebarangay/village at a time Planned collection routes,
time of collection andcustomer coordination
 Extra charges forhouseholds who request
for unscheduled
desludging service

11

Biosolids Disposal Dewatered septage(biosolids) are used assoil conditioner inagricultural fields inlahar‐devastated areas
north of Metro Manila

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2013‐02‐18

Solutions to operational constraints
 Integrated approach toTalent Management

 Innovative Engagement on
th labor‐intensive
thel b i t i workk offcollection and treatment
operation

13

Educating and involving our customers
PROACTIVE CUSTOMERSERVICECOMMUNITY EDUCATION:SHORT FILM

CONSULTATIONS /DIALOGUESCOMMUNITY EDUCATION: WATER TRAIL TOUR14147

2013‐02‐18

Cooperation with government agencies

Health and Environmental
Management
 Provision and enforcement ofpolicies and technicalframeworks, pstandards for collection, treatment
and disposal

15Partnership with local gov’t & donor‐assisted projects• Partnership with Marikina City in 2008.
• City ordinance required mandatory septic tankdesludging for all homes.
• USAID LINAW project involved in social marketing.
• Barangays coordinated with residents on schedules.
• Manila Water provided the desludging services.

1682013‐02‐18

Monitoring and Evaluation
ServiceLevels

Operational
Efficiency• ResponseTime• Coverage Area
• Population
Served• Households
Desludged

Customer
Service• Unit Costs for
Desludging,
Hauling,
Treatment &Disposal• Public
Assessment of
Sanitation
Services by
MWSS & 3rd
party

17

Sanitation Challenges
Low
Coverageg

Operational

Technical

Customer
AcceptanceC
ConstraintsiConstraints

1892013‐02‐18

Multi‐Pronged Approach
Fast Track
Expansion
Plans

Enhance Talent
Development &Innovative
Engagements

ProvideProactive
TechnicalSolutions

Wastewater
Advocacy &RelationshipManagement

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Securing the Future Today

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