septage management experience inseptage management experience in the east zone of metro manila...
TRANSCRIPT
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Septage Management Experience in The East Zone of Metro Manila
Securing the Future Today
Mark Tom MulingbayanManila Water Company
19 February 2013
Metropolitan Waterworks and Sewerage System (MWSS)
Privatization of water utility operations in Metro Manila
WEST ZONE EAST ZONE
CONCESSION AGREEMENT
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1997 to 2022, extended to 2037
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More than 80%More than 80% of Metro Manila uses septic tanks most of which are improperly designed andimproperly designed and
Sanitation Challenges
improperly designed and improperly designed and not wellnot well‐‐maintainedmaintained
~31% 31% of illnessesof illnesses monitored f 5 i d
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for a 5‐year period were caused by caused by
water water ‐‐ borne sourcesborne sources
Manila Water’s wastewater service expansion strategies
Septic Tank Desludging & Septage Treatment
Decentralized Separate Sewer
Systems
Combined Sewer-Drainage Systems
• septic tank desludging for customers every 5 years
• for areas with pre- existing separate sewer networks
• for areas served by individual septic tanks and with no
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customers every 5 years
• septic tank sludge is sent to septage treatment facilities
separate sewer networks septic tanks and with no existing sewer network
• intercept graywater from street canals for full treatment
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Conditions before Privatization
LEAKS
Water Supply Availability3.1M Customers
ILLEGAL CONNECTIONS
POORCUSTOMERSERVICE
26%26% LOW WATER PRESSURE/NO WATER
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Low Sewer Coverage,No Septage Management Service
Fast track Sewerage and Septage Management Plans
100%Marikina RiverCatchment
3% 16% 23%
Pasig River Catchment
San Juan RiverCatchment
Laguna Lake
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1997 2008 2010
aguna ake
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Accomplishments
• 78 Vacuum tankers
for desludging
• 2 Septage Treatment2 Septage Treatment
Plants (SpTP)
• Desludged more
than 70%households to
North SpTP586 m3/dayNorth SpTP586 m3/day
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households to date
Communities served
LEGENDLEGEND South SpTP814 m3/daySouth SpTP814 m3/day
Requirements
• Manila Water customerN
For domestic customers
Scheduled for non‐seweredcommunities every 5 years
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• No payment arrears• Accessible
communities every 5 years
Service does not include opening and sealing of septic tanks
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Septage Management System Overview
Desludging WorksDesludging Works
Wastewater Treatment
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Septage Treatmentand Dewatering
Biosolids Disposal
Larger capacity trucks ‐ for wide roads
Inaccessibility
Smaller capacity – for areas with difficult or narrow access
Vacuum Trucks Capacity:
• 10m3
• 5m3
10
5m
• 1.5m3
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Desludging ‘sweeps’ one barangay/village at a time
Inefficiencies
Planned collection routes, time of collection and customer coordination
Extra charges for households who request
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households who request for unscheduled desludging service
Dewatered septage(biosolids) are used as soil conditioner in
Biosolids Disposal
soil conditioner in agricultural fields in lahar‐devastated areas north of Metro Manila
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Integrated approach to Talent Management
Solutions to operational constraints
Talent Management
Innovative Engagement on th l b i t i k f
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the labor‐intensive work of collection and treatment operation
COMMUNITY EDUCATION: SHORT FILM
Educating and involving our customersPROACTIVE CUSTOMER
SERVICECONSULTATIONS /
DIALOGUES
COMMUNITY EDUCATION: WATER TRAIL TOUR
1414
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Cooperation with government agencies
Health and Environmental Management
Provision and enforcement offrameworks, policies and technical
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pstandards for collection, treatmentand disposal
Partnership with local gov’t & donor‐assisted projects
• Partnership with Marikina City in 2008.• City ordinance required mandatory septic tank desludging for all homes.
• USAID LINAW project involved in social marketing.
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• Barangays coordinated with residents on schedules.• Manila Water provided the desludging services.
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Monitoring and Evaluation
Service Levels
Operational Efficiency
Customer Service
• Coverage Area
• Population Served
• Households
• Unit Costs for Desludging, Hauling, Treatment & Disposal
• Response Time
• Public Assessment of Sanitation Services by MWSS & 3rd
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Households Desludged
MWSS & 3rd
party
Low Coverage
Operational
Constraints
Sanitation Challenges
g Constraints
Technical
C i
CustomerAcceptance
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Constraints Acceptance
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Fast Track Expansion Plans
Enhance Talent Development &
Innovative
Multi‐Pronged Approach
PlansEngagements
Provide Proactive Technical
Wastewater Advocacy & Relationship
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Technical Solutions
Relationship Management
Securing the Future Today