FIE FIL* C Y: Ddocuments.worldbank.org/curated/en/979291468758959036/pdf/multi0page.pdf · pursuant to P.D. 1586 is being secured for the project. I. BASELINE ENVIRONMENTAL CONDITIONS

Metropolitan Waterworks and Sewerage SystemManila Water Company, Inc.

E94Volume 15

Initial Environmental Examination

of the

Community Sanitation ProjectManila Second Sewerage Project

IBRD 4019

Project No. 13Philippine Army Housing (PA Housing)

Taguig, Metro Manila

Prepared by:

Manila Water Company, Inc.489 Katipunan Rd, Balara, Quezon City

December 2001

FIE Y: _ IFIL* _C__ _ D

Pub

lic D

iscl

osur

e A

utho

rized

Pub

lic D

iscl

osur

e A

utho

rized

Pub

lic D

iscl

osur

e A

utho

rized

Pub

lic D

iscl

osur

e A

utho

rized

Pub

lic D

iscl

osur

e A

utho

rized

Pub

lic D

iscl

osur

e A

utho

rized

Pub

lic D

iscl

osur

e A

utho

rized

Pub

lic D

iscl

osur

e A

utho

rized

TABLE OF CONTENTS

PAGE NO.

Executive Summary 7

1.01PROJECT DESCRIPTION

1.1 BASIC PROJECT INFORMATION 12

1.2 PROJECT LOCATION 12

1.3 PROJECT RATIONALE 14

1.4DESCRIPTION OF PROJECT PHASES

1 .4.1 Pre-Operational/Construction Phase

1.4.1.1 Construction Plan 15

1.4.1.2 Total Surface Development Block 15

1.4.1.3 Estimate Total Area to be opened for Civil Works 15

1.4.1.4 Major Openings and Construction Activities 15

1.4.1.5 Types of Equipment to be Used 19

1.4.1.6 Source of Construction Materials and Facilities 19

1.4.1.7 Support Services and Facilities Requirements and

Availability 20

1.4.1.8 Estimate of Total Cut Soil Volume 20

1.4.1.9 Total Manpower Requirement 20

1.4.2 Operational Phase

1.4.2.1 Project Operation Schedule and Duration 21

1.4.2.2 Process Technology and Activities 21

1.4.2.3 Waste Production Scheme 22

1.4.2.4 Manpower Requirement 24

1.4.3 Abandonment Phase 24

2.0 BASELINE ENVIRONMENTAL CONDITIONS

2.1 STUDY METHODOLOGY

2.2LAND

2.2.1 Land Resource Utilization 25

2

2.2.2 Physiography and Geology 25

2.2.3 Vegetation and Wildlife 25

2.2.4 Land Acquisition Assessment 27

2.3WATER

2.3.1 Inventory of Water Bodies 27

2.3.2 Water Quality (Surface/Ground) 27

2.4AIR 28

2.5 PEOPLE

2.5.1 Population/Beneficiary 28

2.5.2 Project Affected Persons 28

3.0 PROJECT ALTERNATIVES 28

4.0 IMPACT ASSESSMENT

4.1 IMPACT IDENTIFICATION

4.1.1 Impacts During Construction Phase 30

4.1.2 Impact During Operation Phase 31

4.2 IMPACT PREDICTION AND EVALUATION 33

4.3 UNAVOIDABLE AND RESIDUAL IMPACTS 34

5.0 ENVIRONMENTAL MANAGEMENT PLAN

5.1 IMPACTS MITIGATION / ENHANCEMENT PLAN 34

5.2ENVIRONMENTAL MONITORING ACTION PLAN 39

6.OCOMMUNITY CONSULTATION PROCESS . 40

3

LIST OF FIGURES

__-

1 Location Map of BLC 13

2 Proposed Implementation Schedule 17

3 Proposed STP Site Layout 18

4 General Treatment Process Scheme 23

5 Photograph of STP site 26

4

LIST OF TABLES

1 Typical Analysis of Septic Tank Effluent Quality 14

2 Estimates of Soil Excavation Volumes 20

3 Influent Flow Characteristics 21

4 DENR Effluent Parameters for Class C Waters 22

5 Sources and List of Potential Environmental 29Impacts

6 Typical Noise Emissions of Construction 31Equipment at Various Distances from Source indB(A)

7 Sludge Production of Various Wastewater 32Treatment Processes

8 Summary of Assessment of Environmental Issues 33/ Impacts

9 Environmental Management Plan 34

10 Environmental Monitoring Action Plan 39

1 1 Institutional Monitoring 40

LIST OF ANNEXES

1 Manila Water Company STARRT Card for Monitoring

Construction Works

2 Wastewater Quality Monitoring Schedule

3 Manila Water PCO Report Format

4 Sample Monitoring Sheet for Effluent Quality

5 Endorsement from the Barangay Captain

6 Draft Memorandum of Agreement (MOA) between Manila

Water Company and the Philippine Army

6

EXECUTIVE SUMMARY

The proposed project for Philippine Army Housing (PA Housing) is one of thetwenty-three (23) sub-projects of the Community Sanitation Project Phase 1,which is a component of the World Bank-assisted Manila Second SewerageProject (MSSP).

The project is intended to reduce the current wastewater pollution discharged tothe Laguna Lake by the three hundred and eighty four (384) residential units inPA Housing. The project involves the improvement and rehabilitation of thesewerage system in the compound. Specifically, the project includes theinstallation of sewer lines to intercept sewage flows from existing communalseptic tanks as well as raw wastewater flows from buildings without septic tanks.An underground centralized sewage treatment plant (STP) will be constructed totreat the wastewater flows.

A Memorandum of Agreement (MOA) between Manila Water Company and thePhilippine Army will be executed to allow project implementation.

In conformity with the requirements of the Department of Environment andNatural Resources (DENR), an Environmental Compliance Certificate (ECC)pursuant to P.D. 1586 is being secured for the project.

I. BASELINE ENVIRONMENTAL CONDITIONS

Philippine Army Housing (PA Housing), also known as Philippine Army OfficersVillage (PAOVILLE), was developed for the military personnel assigned in FortBonifacio. PA Housing occupies 4.6 hectares of the 100-hectare Philippine Armycompound in Fort Bonifacio. It lies on the southernmost part of the 100-hectarearmy compound. It is bounded by the Heritage Park in the south and BayaniRoad in the west.

PA Housing consists of twenty-eight (28) five-story buildings with a total of 384household units. It shelters a population of approximately 2,690. The 28buildings are designed as follows:

Model 120 20 buildings 320 unitsModel 180 8 buildings 64 units

Floral population within PA Housing constitutes ornamental plants and a fewtrees. Faunal population is limited to household pets and stray animals. Thearea is characterized by a relatively even distribution of precipitation during theyear. Like in most parts of Metro Manila, the community has two distinct seasons:the dry season during the months of November to May and the wet seasonduring the months of June to October.

7

Existinq Sewerage System

The sewerage system which serves the 2,690 population of PA Housing is madeup of sewer pipes with diameters ranging from 150-200 millimeters. The sewerlines collect wastewater from each of the 384 residential units to the 14 septictanks (one septic tank serves two buildings). From the septic tanks, settledwastewater flows to a chlorine contact chamber. However, the chlorinationsystem has not been operated since its completion. Settled wastewater from thechamber finds its way to the drainage system with a main outflow connected to acollection pond in the nearby Heritage Park. The Heritage Park uses thecollected water for irrigation of the trees and ornamental plants within thecemetery. Unused settled water is returned to the municipal drainage system.Combined wastewater and drainage flow into a tributary of the Taguig River andultimately discharge to the Laguna Lake. The current BOD5 of the Laguna Lakeranges from 2-5 mg/L which falls within the BOD5 for Class C waters. DENRAdministrative Order 34 (DAO 34) describes Class C water as that suitable forthe following:

1. Fishery Water for the propagation and growth of fish and other aquaticresources;

2. Recreational Water Class II (Boating, etc.);3. Industrial Water Supply Class I (For manufacturing processes after

treatment).

II. ENVIRONMENTAL IMPACTS AND MITIGATING MEASURES

PotentialEnvironmental Mitigating Measures

ImpactCONSTRUCTION PHASE

1. Poor quality of . Manila Water Company will monitor the supply and installationconstruction contract to assure quality of equipment and construction. Site

Managers and Engineers with experience in constructionmanagement shall approve all materials and equipment to beused and installed at the site.

. The contractor will be required to post a performance bond forthe Design and Construction Contract of the sewerage system.

2. Air pollution . Efficient construction planning and work scheduling(suspended particulates, . Formulation of appropriate work plans, work scheduling, workodor and fumes, vehicle specifications and work methodologiesemissions eg. C02, CO a Provision of properly maintained storage area for keepingNON) stocks of construction materials and equipment

. Prompt and fast removal of excavated materials or dredgesspoils from construction site

. Sprinkling of water on dust-generating mounds of resultingfrom earthmoving activities and civil works.

. Control of motor vehicle emissions

. Dust accumulation will also be prevented through properwashing of the vehicles prior to its departure from the site

. Development and enforcement of strict health and safetypollution control regulations specific for the project site- Good housekeeping of workplace and construction

affected areas- Use of Protective Gear by all workers

3. Water pollution due to . Provide temporary drain systems and storage facilities forwastewater , oil excavation soils, fuel and oils needed for equipmentleakage/spills . Cautious and sensible planning for construction and post-

construction phases of the project. Provision of a routine chemical and oil spill clean-up plan. Formulation of a monitoring program

4. Noise pollution from . Establish temporary sound barriers around the work siteoperation of construction . Proper scheduling and phasing of high-noise activitiesequipment . Use of appropriate mufflers and sound proofing for

construction machinery, equipment and engines. Use of Personnel Protective Equipment by all workers

5. Temporary disruption of . Public information campaign posting schedule of constructiontraffic flow within the . Provision of a liaison officer from the residents of thecompound compound to assist the information dissemination regarding

inevitable changes in schedule of operations. Provision of temporary alternative routes, including visible

traffic warning signals* To the extent possible, sewer lines, manholes and lift station

will be constructed in common areas not used for pedestrianor vehicular traffic

* Scheduling of delivery materials and removal of excavatedmaterial during non-rush hour periods.

OPERATIONAL PHASE1'.Environmental hazards . Carefully designed post-construction maintenance,due to accidents, man- contingency and monitoring programsmade and natural disasters . Well designed plan for detection of accident or natural eventseg. accidental spills, fire, including precautionary and remedial measures to beseismic activity, observedearthquakes, heavy . Provision of preventive and remedial procedural manuals atrain/flooding and design workplacefailure . Adequate plans for environmental rehabilitation and

restoration of site and removal of temporary structures andfacilities installed during construction phase

9

2. Water Pollution (effluent . Wastewater discharged by the STP shall conform with thedischarge) Effluent Standards set forth in DENR Admirpistrative Order 34

and 35 for Class C waters. Regular monitoring of wastewater effluent by the Manila Water

Company Central Laboratory. Regular check on sewer lines to prevent discharge/seepage of

untreated wastewater to the environment* Quality of civil work on the STP facility shall be enforced

during construction to avoid seepage

3. Noise Pollution (STP . Use of appropriate mounting for machinery to minimizeequipment, lift station) vibration

* All mechanical/electrical equipment shall be installed insideenclosures

* If appropriate, motors shall be provided with soundproofingdevices

* Maintenance of greenbelt zones and vegetation withappropriate tree species

4. Solid Waste * Solid waste generated within the STP facility will be minimal(generated within the facility but provision will be made for garbage collectionand by the facility) . Disposal of sludge generated will be in accordance with

established procedures of relevant authorities (disposal ofsludge for use as soil conditioner)

5. Odors (organic and sulfur . Maintenance of greenbelt zones and vegetation withcompounds coming from appropriate tree speciesraw wastewater and during . Provision of landscape which will improve the aesthetic of thedesludging of septic tanks) area by planting green strips using appropriate plant or tree

species. Provision of odor control mechanisms

(deodorizer/adsorbent/masking agent) to prevent malodorousemissions)

6, Maintenance and . Regular asset condition monitoring by Manila Water CompanyOperation of the System personnel. Poor maintenance of * Regular maintenance works for STP equipment (pumps and

mechanical equipment motors), sewer network and septic tanks(pumps and motors) * Adequate training of STP operators

. Connections . A liaison officer from the Community will assist the STPoperator in assuring the facility's efficiency in operation

* Provision of adequate maintenance equipment and spares forthe sewerage system facility

10

Ill. ENVIRONMENTAL MONITORING PLAN

Environmental monitoring will be the responsibility of Manila Water Company._V3=mEmmm I

Construction Phase

Compliance with Manila * At STP site and its * On-the-spot dailyWater Company health and perimeter inspection andsafety policies (dust * Pipe laying area monitoring will beemissions, good * Equipment and implemented by thehousekeeping, noise, odors) materials storage area Health and Safety

Dept. of Manila WaterCompany using theSTARRT Card(Annex 1)

Traffic * Ingress and egress to * Dailythe construction site

Operational Phase

Effluent Water Quality * Influent * Annex 2 describes infor parameters like pH, 5-day * Samples from detail the schedule ofBOD, COD, Total coliform, Treatment stages wastewater qualitysuspended solids, and oil and * Effluent monitoring.grease.

* STP site and * DailyOdor perimeter

* At STP site * WeeklySludge * Sewer networkaccumulation/Clogging * Sewer networ

tanks

1.0 PROJECT DESCRIPTION

1.1 Basic Project Information

Name of Project PHILIPPINE ARMY HOUSINGCOMMUNITY SANITATION PROJECTMANILA SECOND SEWERAGE PROJECT

Address : PHILIPPINE ARMY HOUSING, BarangayWestern Bicutan, Taguig, Metro Manila

Contact Persons Leonor C. CleofasManager, Engineering and ProjectManagement OfficeMetropolitan Waterworks and SewerageSystemGround Floor, Engineering Building, MWSSComplex, Katipunan Road, Balara, QuezonCity 1105Tel No. (632) 920-5413; (632) 920-5521 to 40locals 3570/3569; Telefax: (632) 922-2568

Ma. Fiorella De Los Reyes-FabellaWastewater Project Development ManagerManila Water Company, Inc.489 Katipunan Road, 1105 Balara, QuezonCity, PhilippinesTel No. (632)981-8147; (632)926-7999 loc2032Fax (632) 981-8106

1.2 PROJECT LOCATION

The proposed project for PA Housing is a sub-project of the CommunitySanitation Project, which is a component of the World Bank-assisted MSSP.

The service area is the entire PA Housing compound. The project site isaccessible through Bayani Road and Lawton Avenue. Figure 1 presents thevicinity map of the project

12

Figure 1. Location Map0 0.1 O2

I Project Area Water Bodies

13

1.3 PROJECT RATIONALE

In Metro Manila, untreated/partially treated domestic wastewater is the majorsource of pollution of inland waters. Most residential houses in Metro Manilatreat their wastewater by means of septic tanks, which do not provide adequatetreatment to satisfy the DENR requirements for wastewater effluent standards.Moreover, majority of septic tanks in Metro Manila is not properly maintained.This situation has led to the deterioration of the Pasig River and other inlandwaters. The DENR has estimated that around 60% of the pollution load to PasigRiver, which empties to Manila Bay and Laguna Lake, come from domesticdischarges. In the case of Laguna Lake, 65% of the total pollution load isattributed to domestic waste.

There is therefore an urgent need to establish collection and treatment methodsthat will help reduce the pollution load to inland waters. The provision of anefficient and cost-effective sewage collection, treatment and disposal is theprimary objective of the Community Sanitation Project under the MSSP.

This project specifically aims to address the problems of inadequate wastewatertreatment and disposal in PA Housing. Inadequate treatment of wastewater inseptic tanks is indicated by the typical analysis of the effluent quality of septictanks in other project sites (see Table 1 below). The project will help reducepublic health risks and environmental pollution from untreated/partially treateddomestic wastewater by providing a sustainable sanitation and sewerage facility.It will also serve as a good illustration of proper sanitation especially to theneighboring communities near Laguna Lake.

Table 1Typical Analysis of Septic Tank Effluent Quality

Limit(s) Septic TankParameter DENR-EMB Effluent

PH 6.5-9 7.3fli27.90C

Suspended solids, mg/L 70 90-120

Dissolved Oxygen, mg/L 0.00

Biochemical Oxygen Demand 50 150-250(BOD 5), mg/L

Chemical Oxygen Demand, mg/L 100 200-300

Total Coliform Count, MPN/100 ml 10,000 1O6_107

Fecal Coliform Count, MPN/100 ml - 106_107

14

1.4 DESCRIPTION OF PROJECT PHASES

1.4.1 Pre-Operational / Construction Phases

1.4.1.1 Construction Plan

The project is scheduled for bidding in December 2001. Construction isexpected to commence in March 2002 and project completion is targeted inSeptember 2002 (210 calendar days).

Figure 2 shows the implementation schedule for the project. Manila WaterCompany will undertake the project implementation.

1.4.1.2 Total Surface Development Block

The service area is approximately 4.6 hectares and is estimated to have acurrent population of 2,690. The project will serve all the residential units in PAHousing. Any increase in population is not considered because there are nofurther planned development within the compound that would significantly affectthe quality and/or quantity of wastewater discharges.

1.4.1.3 Estimate of Total Land Area to be Opened for Civil Works

Civil Works will include installation of sewer pipe to collect the flow from thechlorine contact chamber to the STP, construction of the STP, and the laying ofSTP discharge pipe. The STP may be located underground in a 200 square-meter lot. Sewer lines totaling 20 meters will be opened for civil works. Figure 3shows the STP site layout for the project.

1.4.1.4 Major Openings and Construction Activities

The complete sewerage system will include the following components:

* Sewer lines (diameter=200 mm) with a total estimated length of 15 metersto connect the chlorine contact chamber to the STP

* STP with a design capacity of 430 m 3/day and land requirement of 200 m2

* STP discharge pipe (diameter=200 mm) with a total estimated length of 5meters to existing storm drainage

15

Figure 3Proposed Implementation Schedule

for the ARMY HOUSING Community Sanitation ProjectWeek No. 1 2 3 4 5 6 7 j 9 j 1 1 12 13 14 15 16 17 18 ig 20 212 3 24 25 26 27 28

1-1AY A:3 - -

' la - r .. l A

| t.r -r -, - - - - - -; -XX t

.E-.rj;aebr E.Q.,rr.Mi g w ro

4-1~ ~ 1

iE~iI Ca L""E -, _

Te.FIjnn o ee1 Le _

BackfiIr.g

and Peie~OaiC.r. - -4

Trpatrn~~~~~~~~~~~~~~~~~~r.v~~~~~ ~ i-.

Install Treatment -

Equipment

Install Electilcal

and Plumbing__

Testing.

Acceptance &

TurnoverI

1 6

Figure 3

Proposed STP Site Layout forPhilippine Army Housing Community Sanitation Project

Manila Water

\M X TO OFF SITE DRAINAGE

EL. 19.90

EL. 17.79

MHL.19.90

EXISTING CHLORINECONTACT CHAMBERTO BE UTILIZED

SJB CO \X0>

EL.18.59 D HnmMIHlo 25°1t \ \\

MH E .18.46EL.IB.41 SJB

STP EFFLUENT LINE

E s EL 1 9.9EEE

In) 0

(N ~ ~ A

EXISTING NIPA HUTTO BE REMOVED

[HTIW PROPO E STP MH 0'r

EL.I8.94 CE*

E

oE N s _ * ~ _ O

0

EL 1,MH 50,> ELI93

MH < .19.48 MEL19.61 1948

17

Civil works to be implemented are as follows:

For STP - electrical installation* Site clearing * Site restoration* Earthworks Clearing/ miscellaneous activities

- excavation and handling- dewatering For Pipelayingi- backfill and compaction * Pavement cutting- lean concrete/ gravel bedding * Shoring and removal

* Concrete Works * Excavation and handling- shoring and soil protection * Dewatering- formworks * Pipelaying- concreting * Backfill and compaction

* Electro-mechanical * Testing pavement restoration- internal and external pipeworks * Clearing / miscellaneous activities

* mechanical installation

1.4.1.5 Types of Equipment to be Used

The civil works contractor will provide equipment which include, but is not limitedto, the following:

* backhoe/loader* dewatering equipment* concrete mixer/concrete pump* welding machine* compactor* jackhammer and air compressor* generator* dump trucks

1.4.1.6 Source of Construction Materials and Facilities

The following alternative type of pipe materials will be permitted for sewer mains:

* UPVC Pipe* Polyethylene* Fiberglass Pipe* Ductile Iron Pipe* Cast Iron Soil Pipe

The contractor can choose from the above pipe materials.

18

1.4.1.7 Support Services and Facilities Requirements and Availability

Support services and facilities will be tapped from the available utilities on site.Arrangements with locators in PA Housing and/or any other party will be made bythe contractor.

1.4.1.8 Estimate Total Cut Soil Volume(for pipelaying)

Table 2 presents the total system length, average excavation depth of the sewerpipes and area of the project.

Table 2Estimates of Soil Excavation Volumes

Estimated Average Excavation AverageDimensions Depth (m) Excavation.

(sq.m) Volume(cu. m.)

STP site 200.00 6.0 1,200.00

Sewer line 200 10.00 1.5 15.00mm0

TOTAL 1,215.00*Estimated dimension of pipe (sq.m.)= [(pipe diameter +0.3) x total length of pipe required]

1.4.1.9 Total Manpower Requirement

The project will be bid out based on World Bank procedures. The winning bidderwill provide contractual work for a period of around 210 calendar days. Thecontractor will provide skilled and unskilled workers to carry out the scope ofworks as detailed in the bid documents. The scope of works includes:

* site clearing* installation works for the sewer network* detailed engineering design and construction/installation works for the STP

and its appurtenances* landscaping of the STP site and the vicinity* abandonment activities (road restoration, etc.)* STP start-up operations

19

1.4.2 Operational Phase

1.4.2.1 Project Operation Schedule and Duration

Completion of construction is expected by September 2002. Start-up operationswill begin immediately after project completion.

1.4.2.2 Process Technology and Activities

The project will be bid on the basis of performance specifications for the STPTreatment Process:

* Wastewater flows were computed on the basis of a per capita water demandof 200 liters per day and a 70% wastewater discharge. Storm infiltration wasestimated at 10% of the total flows. A peak factor of 1.5 was added in thecomputation of design flows to determine pipes sizes and capacity of STP.

* The influent flow characteristics were based on random laboratory analysesof septic tank effluent in representative sites. The influent qualityassumptions are shown in Table 3 below:

Table 3Influent Flow Characteristics

TSS BOD5 COD Oil and pH(mg/l) (mg/l) (mg/l) Grease (mg/1)

100 200 350 50 6-9TSS = Total Suspended SolidsBOD5 = 5-day biochemical oxygen demand at 200CCOD = chemical oxygen demand

* Wastewater discharged by the STP shall conform with the Effluent Standardsset forth in DENR Administrative Order 34 and 35 for Class C waters asshown in Table 4 below:

* Wastewater treatment will reduce the BOD5 from 200 mg/L to 50 mg/L, at theminimum. This illustrates an STP treatment efficiency of at least 75%.

20

Table 4DENR Effluent Parameters for Class C Waters

7 Color PCU 150pH 6-9COD mg/L 100Settleable solids mg/L 0.55-day 20°C BOD mg/L 50Total Suspended Solids mg/L 70Total Dissolved Solids mg/L 7Oil and Grease mg/L 5Phenolic Substances mg/L 0.10Total Coliforms MPN/100 ml 10,000

Process Scheme of STP

The STP to be constructed in PA Housing may be below ground. If contractaward goes to an underground STP proposal, the only aboveground structureswill be the control room/panel.

The STP treatment process will provide secondary treatment to septic tankeffluent. It is expected that bidders will propose different process technologiesbased on the performance specifications in the bid documents. Some factorswhich will be considered in selecting the STP treatment process are:

* Suitability in project site* Performance/Treatment efficiency* Capital and Replacement costs* Operations and Maintenance Costs* Complexity of operations* Flexibility of treatment process

A general scheme for the treatment process is illustrated in Figure 4.

1.4.2.3 Waste Production Scheme

Up to 2005, sludge produced in the treatment process will be transported to acentralized Septage Sea Disposal Station located in J.P. Rizal St' Brgy. WestRembo, Makati City. Mobile vacuum tankers will collect the sludge produced inthe STP.

21

Figure 4

General Treatment Process Scheme

\ Clarifier Clarified

Raw ~~~~~~~~) / >; K > f ~~~~~~~~~~~~~~~EffluentRawSewage <\

Lift Surge 2° Treatment DisinfectionPump Tank System (Chlorination)

Biological(SBRIIDEAActivatedSludge)

Waste Sludge

SludgeDigestion

Re-use sludge assoil conditioner

22

A long-term disposal scheme for biosolids from the STP will be as soilconditioner for sugarcane and corn in Pampanga. Experiments done incoordination with the Sugar Regulatory Administration on the use of sludge inenhancing the soil quality of lahar-covered areas and the growth of crops such assugarcane, corn and bittergourd resulted in the issuance of a temporary licenseissued by the Fertilizer and Pesticide Authority. The license allows the use ofsludge in growing similar crops.

Sludge generated from the STP can also be treated in the 600 cum/day septagetreatment facility which is expected to be operational by 2004. This facility is partof the Sanitation Component of the Pasig River Rehabilitation Project. Thefacility will be operated by Manila Water Company.

1.4.2.4 Manpower Requirement

Manila Water Company will assign an LLDA and DENR-accredited PollutionControl Officer (PCO) who will be responsible for the compliance of the STP withgovernment regulations. The PCO will have trained operators/crews who willmonitor and manage the operation of the sewer network.

Since the STP operations will be operated largely by automation, regularmaintenance works will include declogging of sewer lines and removal of sludgefrom the STP site and the communal septic tanks. The STP operator will visit theproject site daily. Monitoring of the effluent quality will be the joint responsibilityof the PCO and the Central Laboratory of Manila Water Company.

A liaison officer from the community will coordinate with Manila Water Companypersonnel on the proper operations of the STP and the sewer network. A 24-hourCustomer Service Hotline (1627) is available to accept complaints and otheremergency reports. Manila Water Company has sewer network repair crewswho work in regular round-the-clock 8-hour shifts and who are readily availablefor any emergency work.

1.4.3 Abandonment Phase

Upon completion of the project scope, the contractor will remove all temporarystructures and facilities installed during the construction phase. All pavementswill be restored. The cost of abandonment will be incorporated in the overall costof the project. Manila Water Company will issue a certificate of final acceptanceonly upon completion of all abandonment works by the contractor and uponturnover of the STP operations.

23

2.0 BASELINE ENVIRONMENTAL CONDITIONS

2.1 STUDY METHODOLOGY

This Initial Environmental Examination (IEE) was prepared in compliance with theWorld Bank's Operational Directive 4.01 on Environmental Assessment. An IEEwas previously carried out according to the DENR Administrative Order No. 96-37, for which an Environmental Compliance Certificate (ECC) is being processedby the DENR Regional Office.

2.2 LAND

2.2.1 Land Resource Utilization

PA Housing has an estimated land area of 4.6 hectares. Approximately 40% ofthe total area is devoted to residential use, while 60% accounts for parkingspaces, driveways, other common facilities and open spaces.

2.2.2 Physiography and Geology

PA Housing lies on a relatively flat plain sloping downward to the Heritage Parkin the south. Soil type in the area belongs to the GF-Guadalupe Formationclassification. The Guadalupe Formation is characterized by thin to mediumbedded, fine-grained vitric tuffs and welded volcanic breccias with subordinateamount of tuffaceous, fine to medium-grained sandstone.

2.2.3 Vegetation and Wildlife

The proposed site for the STP is in a vacant area at the back of building 10 andbeside building 20. Presently in the site is a park, an underground portion ofwhich is the chlorine contact chamber. Figure 5 shows photographs of theproposed site.

The vegetative cover of the site is predominantly wild grass interspersed with asmall number of wild, adolescent vegetation. The plant species that can befound in the site and which will be uprooted during construction are:

Acacia (Samanea saman) Banana (Sapientum spp)Cassava (Manihot esculenta) Common grass (Phraagmites spp.)Gabi (Colocasia esculenta) Narra (Pterocarpus indicus)Neem Tree (Azadirachta indica) Papaya (Carica papaya)Tuba-tuba (Jatropha curcas) Wild cassava (Ipomoea sp)

Faunal population is limited to household pets and stray animals.

24

Figure 5. Proposed STP Site

J_~~~~~~~~k, Diiigall between PA Housing and Heritage Park

nt are nea Bd. 10 _ .20_.

Vaataea near Bldg. 10 &,20 _

25

2.2.4 Land Acquisition Assessment

Manila Water will be allowed to use a parcel of land for the STP by way of a grantof perpetual easement from the owner/developer of the community, which in thisproject is the Philippine Army. The STP site is free from informal settlers.

2.3 WATER

2.3.1 Inventory of Water Bodies

Combined wastewater and drainage from PA Housing flow into a tributary of theTaguig River and ultimately discharge to the Laguna Lake. The current BOD 5 ofthe Laguna Lake is 2-5 mg/L which falls within the BOD5 for Class C waters.DENR Administrative Order 34 (DAO 34) describes Class C water as thatsuitable for the following:

1. Fishery Water for the propagation and growth of fish and other aquaticresources;

2. Recreational Water Class II (Boating, etc.); and3. Industrial Water Supply Class I (For manufacturing processes after

treatment)

2.3.2 Water Quality (Surface/Ground)

Surface Water Quality. Pollution loading to the Laguna Lake will be reducedsince septic tanks and raw wastewater from the project area will no longer bedischarged directly to the Lake. Effluent from the plant will comply with DENREffluent Quality standards sufficient for Class C waters.

At present, the Laguna Lake is used for the propagation and growth of fishes aswell as recreational and industrial uses. Sixty five percent (65%) of the pollutionloading to the Lake comes from domestic waste. Without any sewerage orsanitation interventions, the pollution load entering the Lake is expected toincrease dramatically unless necessary steps to reduce pollution loading formdomestic wastewater is taken.

Ground Water Quality. Since septic tank effluent will undergo further treatment inthe plant, the possibility of contaminating the aquifers due to leachate from septictank discharge or from raw wastewater will be eliminated. Seepage from plantoperations will be non-existent.

26

2.4 AIR

Taguig experiences only two types of weather conditions, rainy season and thedry season. Rainy season occurs between the months of July and October,while the dry season occurs between November and June. Mean annualtemperature is 27.40C and average annual humidity is 77% for Metro Manila.

Air quality within PA Housing is moderately unpolluted. However, outside thepremise is a national road where public and private vehicles exhaust vehiclefumes contributing to the air pollution in the vicinity.

2.5 PEOPLE

2.5.1 Population

All 384 units in PA Housing are currently occupied. Assuming 7 persons per unit,the projected population is 2,690. Social status of the families range from Class Bto Class D based on the classification of the National Statistics Office (NSO).

2.5.2 Project Affected Persons

During construction, the project will cause noise and traffic nuisance to the PAHousing community, its neighboring communities and pedestrians. Onceoperational, the project will directly affect the residents of the entire PA Housing.The sanitation of the community will be improved when the new sewer system isoperational.

Manila Water will assign skilled personnel to operate and maintain the system upto approved standards.

3.0 ALTERNATIVES

PA Housing is considered a priority area for the improvement of sanitationconditions based on the following factors:

* It has a relatively high population density.* The existing sanitation facilities are inadequate to comply with the DENR

effluent standards.* The communal sanitation and drainage systems in the compound are not

maintained.

The potential site identified for the STP is a vacant area at the back of building#10 and beside building #20. This area is the site of the underground chlorinecontact chamber. The aboveground is currently used as a park. The site will notrequire relocation of inhabitants during construction.

27

Table 6 shows the typical noise emissions of common construction equipmentused at various distances from source.

Table 6Typical Noise Emissions of Construction Equipment at Various Distances

from Source in dB(A)

R 0 I $II 5 W

Air Compressor 75-87 69-81 63-75Backhoe 71-92 65-87 59-81Compactor 72 66 60Concrete Mixer 75-88 69-82 63-76Pumps 70-90 64-84 56-78Tractors, 78-95 72-89 66-83BulldozersTrucks 83-93 77-87 71-81Jack Hammer 81-97 75-91 69-85

D. Ecological Effects

Since there are no rare, endemic species of flora and fauna in the project area,project implementation has minimal impact on the overall terrestrial ecology ofPA Housing. Some plants will be unavoidably cleared during civil works.

4.1.2 Impacts During Operation Phase

A. Air Quality

There will be minimal effect on the air quality during the operational phase of theSTP. Aside from the occasional odor nuisance, there will be no adverse effecton the air quality. The performance specifications for the STP treatment processspecifically state that the facility should have odor control mechanisms (eg.,deodorizer, masking agent, adsorbent, etc.). Manila Water Company will notaccept the turnover of the STP by the contractor if the facility emits unpleasantodors. Permanent solution(s) to address any odor nuisance will be theresponsibility of the contractor.

B. Water Quality

Without wastewater treatment, PA Housing accounts for an estimated 86 kgBOD5/day loading to the Laguna Lake. The implementation of the project willcontribute to the improvement of the quality of water in Laguna Lake by reducingdischarge of untreated/partially treated wastewater. From a pollution loading of86 kg BOD5Iday, loading will be reduced to 13-22 kg BOD 5/day, or a 75-85%BOD reduction, when the STP becomes operational.

30

C. Socio-Economic

A flat sewer charge equivalent to 50% of the water charge will be included in thewater bill once the STP is commissioned. This fee will help cover the costs of theoperations and maintenance of the STP and the sewer network. Thisarrangement was explained to the concerned officers of the Philippine Army andresidents of PA Housing. The consultation done with the community is explainedin Chapter 6.0.

The general sanitation conditions in the project area will significantly improve.The project will reduce, if not eliminate the threat of water borne diseases suchas diarrhea and typhoid, which are more costly to manage.

D. Sludge Disposal and Management

The existing septic tanks in the area produce an estimated 18 kg of sludge peryear. The table below illustrates the sludge production averages for variouswastewater treatment processes. Also indicated is the estimated sludgeproduction of the STP considering each type of treatment.

Table 7Sludge Production of Various Wastewater Treatment Processes

Treatment Process Typical Dry Solids Estimated STP SludgeProduction (kg/m3) Production (kg/day)

Activated sludge 85 36,550Trickling filtration 70 30,100Extended aeration 100* 43,000Aerated lagoon 100* 43,000*assumes no primary treatment

The bidders for the project may propose any of the above wastewater treatmentprocess or their modifications. Cost and operational efficiency are among theconsiderations for awarding the bid.

In the interim (i.e. up to 2005), sludge produced in the treatment process andcollected from the communal septic tanks will be transported to a Septage SeaDisposal Station located in J.P. Rizal St., Brgy, West Rembo, Makati City.Vacuum tankers will collect the sludge produced in the STP and the septagefrom septic tanks.

A long-term alternative is the disposal of sludge and septage to the lahar areas inPampanga. The sludge can be used as soil conditioner for sugarcane and corn.Experiments done in coordination with the Sugar Regulatory Administration onthe use of sludge in enhancing the soil quality of lahar-covered areas and thegrowth of crops such as sugarcane, corn and bittergourd resulted in the issuance

31

of a temporary license issued by the Fertilizer and Pesticide Authority. Thelicense allows the Luse of sludge in growing similar crops.

Starting 2004, a septage treatment facility will also be available to treat sludgeand septage from the STP. Stabilized sludge may also be used as filling materialThis septage treatment facility is part of the Sanitation Component of the PasigRiver Rehabilitation Project. Manila Water Company will operate the septagetreatment facility.

4.2 IMPACT PREDICTION AND EVALUATION

Table 8 below presents a summary of the assessment of the impacts of theproject.

Table 8SUMMARY OF ASSESSMENT OF ENVIRONMENTAL ISSUES/IMPACTS

Environmental Impact AssessmentIssues/lmpacts Classification Probability Reversibility Time : ,Mq;

Scale1. Construction Phase

Air/Dust Pollution - 4 < +

Noise % < v

Traffic - 0 < 4.

Soil Erosion - 0 < 4

Water Pollution - U < +Increased + *Employment

2. Operational Phase

Water Pollution - > +Contamination ofdrinking - > 46water supply

Odor Pollution - < 0

Noise - < +

Accidents/hazards - 0 <4

Health benefits + 0 4 >4

Property Value andCommercial + 0 44 >4AttractivenessEnvironmentalsanitation + 0 44 >enhancement

+ Positive o Unlikely to occur 4% Reversible < Short term + Insignificant- 0 likely to occur 44 Irreversible > Long term T ModerateNegative

4. Severe

32

The implementation of the project is projected to produce minimal adverse effectenvironmental impacts. Moreover, the long-term benefits from the project such asimproved sanitation conditions within the compound, lesser risk of waterbornediseases, and reduction in pollution will more than compensate for the negativeeffects that this project will cause during construction and operation.

Mitigating measures will be implemented to minimize, if not eliminate anyadverse impact that the project may cause. Measures to enhance the existingenvironmental conditions in the project site shall be implemented, as needed.

4.3 UNAVOIDABLE AND RESIDUAL IMPACTS

Unavoidable and residual impacts are those which occur as a result of naturalcalamities such as floods caused by typhoons or heavy rains, earthquakes andthe like. Appropriate measures will be done to anticipate these impacts and toimplement contingency action plans.

5.0 ENVIRONMENTAL MANAGEMENT PLAN

5.1 IMPACTS MITIGATION / ENHANCEMENT PLAN

Table 9 below is a matrix on the environmental management plan of theproposed project.

Table 9ENVIRONMENTAL MANAGEMENT PLAN

CONSTRUCTION PHASEPotential Manner-of

Environmental Mitigating Measures Implementation ScheduleImpact

1. Poor quality of . Manila Water Company will To be included in the Dailyconstruction monitor the supply and contractor's scope of

installation contract to work, under theassure quality of equipment supervision of Manilaand construction. Site Water Company.*Managers and Engineerswith experience inconstruction managementshall approve all materialsand equipment to be usedand installed at the site.

. The contractor will berequired to post aperformance bond for theDesign and ConstructionContract of the seweragesystem.

33

2. Air pollution * Efficient construction To be included in the Start of(suspended planning and work contractor's scope of constructionparticulates, odor scheduling work, under the and dailyand fumes, vehicle * Formulation of appropriate supervision'of Manilaemissions eg. CO2, work plans, work scheduling, Water Company.*CO NO,) work specifications and work

methodologies* Provision of properly

maintained storage area forkeeping stocks ofconstruction materials andequipment

* Prompt and fast removal ofexcavated materials ordredges spoils fromconstruction site

* Sprinkling of water on dust-generating mounds ofresulting from earthmovingactivities and civil works.

* Control of motor vehicleemissions

* Dust accumulation will alsobe prevented through properwashing of the vehicles priorto its departure from the site

* Development andenforcement of strict healthand safety pollution controlregulations specific for theproject site- Good housekeeping of

workplace andconstruction affectedareas

- Use of Protective Gearby all workers

3. Water pollution * Provide temporary drain To be included in the Duringdue to wastewater, systems and storage contractor's scope of constructionoil leakage/spills, facilities for excavation soils, work, under thetoxic and hazardous fuel and oils needed for supervision of Manilasubstances equipment Water Company.*

* Cautious and sensibleplanning for construction andpost-construction phases ofthe project

* Provision of a routinechemical and oil spill clean-up plan

* Formulation of a monitoringprogram

4. Noise pollution * Establish temporary sound To be included in the Dailyfrom operation of barriers around the work site contractor's scope of

34

construction * Proper scheduling and work, under theequipment phasing of high-noise supervision of Manila

activities Water Company.** Use of appropriate mufflers

and sound proofing forconstruction machinery,equipment and engines

* Use of Personnel ProtectiveEquipment by all workers

5. Temporary * Public information campaign To be included in the Dailydisruption of traffic posting schedule of contractor's scope offlow within the construction work, under thecompound * Provision of a liaison officer supervision of Manila

from the residents of the Water Company.'compound to assist theinformation disserhinationregarding inevitable changesin schedule of operations

* Provision of temporaryalternative routes, includingvisible traffic warning signals

* To the extent possible,sewer lines, manholes andlift station will be constructedin common areas not usedfor pedestrian or vehiculartraffic

* Scheduling of deliverymaterials and removal ofexcavated material duringnon-rush hour periods.

6. Accumulation of * Hauling and proper disposal To be included in the Dailysolid waste in of waste construction contractor's scope ofconstruction site materials by contractor, work, under the

supervised by Manila Water supervision of ManilaCompany Water Company.*

* Provision of temporary toiletfacilities for workers

*Manila Water Company's contractor shall comply with all the conditionsstipulated in the scope of work. Any violation by the contractor will be penalizedby a performance security incorporated in the bid. The performance security willbe in the form of an unconditional bank guarantee in the amount of 10% of thecontract price.

35

OPERATIONAL PHASEPotential Manner of

Environmental Mitigating Measures Implementation ScheduleImpact

1.Environmental . Carefully designed post- Manila Water Observancehazards due to construction maintenance, Company of guidelinesaccidents, man- contingency and monitoring will be donemade natural programs daily.disasters eg. . Well designed plan forAccidental spills, detection of accident orfire, seismic natural events includingactivity, precautionary and remedialearthquakes, heavy measures to be observedrain/flooding and . Provision of preventive anddesign failure remedial procedural manuals

at workplace. Adequate plans for

environmental rehabilitationand restoration of site andremoval of temporarystructures and facilitiesinstalled during constructionphase

2. Water Pollution . Wastewater discharged by Manila Water Refer tothe STP shall conform with Company Annex 2the Effluent Standards setforth in DENR AdministrativeOrder 34 and 35 for Class Cwaters. Annex 2 describes indetail the schedule ofwastewater qualitymonitoring.

. Regular monitoring ofwastewater effluent by theManila Water CompanyCentral Laboratory

. Regular check on sewer linesto prevent discharge/seepageof untreated wastewater tothe environment

. Quality of civil work on theSTP facility shall be enforcedduring construction to avoidseepage

36

3. Noise Pollution . Use of appropriate mounting Manila Water Observancefor machinery to minimize Company shall be donevibration daily.

a All mechanical/electricalequipment shall be installedinside enclosures

. If appropriate, motors shall beprovided with soundproofingdevices

. Maintenance of greenbeltzones and vegetation withappropriate tree species

4. Solid Waste . Solid waste generated within Manila Water Weekly(generated within the STP facility will be Companythe facility and by minimal but provision will bethe facility) made for garbage collection

* Disposal of sludge generatedwill be in accordance withestablished procedures ofrelevant authorities (disposalof sludge for use as soilconditioner)

5. Odors (organic . Maintenance of greenbelt Manila Water This shall beand sulfur zones and vegetation with Company inspectedcompounds coming appropriate tree species daily.from raw . Provision of landscape whichwastewater and will improve the aesthetic ofduring desludging the area by planting greenof septage) strips using appropriate plant

or tree species. Provision of odor control

mechanisms(deodorizer/adsorbent/masking agent) to preventmalodorous emissions)

6, Maintenance and . Regular asset condition Manila Water This shall beOperation of the monitoring by Manila Water Company done daily.System Company personnel* Poor . Regular maintenance works

maintenance of for STP equipment (pumpsmechanical and motors), sewer networkequipment and septic tanks(pumps and . Adequate training of STPmotors) operators

. A liaison officer from theCommunity will assist theSTP operator in assuring thefacility's efficiency inoperation

* Provision of adequatemaintenance equipment andspares for the seweragesystem facility

37

5.2 ENVIRONMENTAL MONITORING ACTION PLAN

Tables 10 and 11 below present the action plan for environmental monitoring forthe proposed project. Manila Water Company will be responsible for themonitoring of the STP, the sewer network, and communal septic tanks.

Table 10Environmental Monitoring Action Plan

Construction Phase

Compliance with Manila . At STP site and its * On-the-spot dailyWater Company health and perimeter inspection andsafety policies (dust . Pipe laying area monitoring will beemissions, good * Equipment and implemented by thehousekeeping, noise, odors) materials storage area Health and Safety

Dept. of Manila WaterCompany using theSTARRT Card(Annex 1)

Traffic . Ingress and egress to * Dailythe construction site

Operational Phase

Effluent Water Quality . Influent * Annex 2 describes infor parameters like pH, 5-day * Samples from detail the schedule ofBOD, COD, Total coliform, Treatment stages wastewater qualitysuspended solids, and oil and . Effluent monitoring.grease.

. Daily

Odor * STP site and . Weekly

perimeter

Sludge AtTPseaccumulation/Clogging . At STP site

. Sewer network

. Communal septictanks

38

Table 11Institutional Monitoring

Item Reporting SchemeReporter - - Recipient Frequency

Pre-Construction PhaseConfined Space Contractor Manila Water every entry into aPermit confined spaceWelding Contractor Manila Water onceAccreditation .Construction PhaseSTARRT Card Contractor Manila Water dailyProgress Report Manila Water MWSS quarterly

MWSS World BankOperation PhasePCO Report (See Manila Water DENR/LLDA quarterlyAnnex 3 for the PCO MWSSPCO ReportFormat)

The procedures to be used during the sampling and analysis will be based on thestandard methods prescribed in DENR Administrative Order No. 34 and 35.Annex 4 presents a sample monitoring sheet of effluent quality used by ManilaWater Company.

6.0 CONSULTATION PROCESS

The development of the project included consultations with barangay officials andarmy officers. Annex 5 presents the endorsement of the Barangay Captain of theproject. A Memorandum of Agreement (MOA) between Manila Water Companyand the Philippine Army is being processed. The MOA specifies theresponsibilities of the parties concerned in the project (see Annex 6).

39

ANNEXES

ANNEX 1

ANNEX 1. MANILA WATER COMPANY STARRT CARD FOR MONITORINGCONSTRUCTION WORKS

SAFETY TASK ANALYSIS RISK REDUCTION TALK (STARRT) CARD

NAME OF CONTRACTOR: DATE:SUPERVISOR/FOREMAN:

JOB DESCRIPTION: NIGHT O

LOCATION: DAY O

TODAY ACTIVITIES: __ _ __ _ _

PRIMARY HAZARDS INVOLVED:__ _

SAFETY PRECAUTIONS TAKEN:

PUBLIC SAFETY HAZARDS (ENVIRONMENTAL)BARRICADES N/A YES NO NOISE N/A YES NOTRENCH PLATE N/A YES NO HEAT STRESS N/A YES NOSIGNS N/A YES NO GROUND CONTAMINATION N/A YES NOBARRIERS N/A YES NO WORKING AT HEIGHTFLASHERS N/A YES NO FULL BODY HARNESS YES NOGUARDS N/A YES NO SHOCK ABSORBING LANYARD YES NONOTICES N/A YES NO ACCESS LADDERS YES NOOTHER N/A YES NO TIE OFF POINTS N/A YES NO

HAZARDS (BODY) HORIZONTAL SAFETY LINE N/A YES NOFALL POTENTIAL N/A YES NO ENERTIA REAL N/A YES NOPINCH POINTS N/A YES NO SLIP GRIPS N/A YES NOELECTRICAL SHOCK N/A YES NO SAFETY NETS N/A YES NOSLIP-TRIP N/A YES NO MAN BASKETS N/A YES NOFLYING PARTICLES N/A YES NO SUSPENDED PLATFORM N/A YES NOTHERMAL BURNS N/A YES NO DROP AREA PROTECTION N/A YES NOMANUAL LIFTING N/A YES NO BARRICADES N/A YES NOSHARP OBJECT N/A YES NO SCAFFOLD

HOUSEKEEPING GREEN TAG UP TO DATE N/A YES NOAREA TIDY YES NO HANDRAILS, LADDERS, BOARDS N/A YES NOFREE OF WASTE YES NO FULL WIDTH PLANKING N/A YES NO

PPE ALL PLANKS IN GOOD CONDITION N/A YES NOHARD HAT YES NO CONFINED SPACESAFETY GLASSES YES NO CONFINED SPACE PERMIT ISSUED YES NOWORK GLOVES YES NO CONFINED SPACE STANDBY PERSON YES NOSAFETY BOOTS YES NO ATMOSPHERE TESTED YES NOCHEMICAL GLOVES N/A YES NO WORKERS TOLD OF HAZARDS YES NORUBBER BOOTS N/A YES NO ENTRY PERMIT COMPLETED YES NOMONO GOGGLES N/A YES NO WELDINGFOOT GUARDS N/A YES NO HOT WORK PERMIT YES NO

EXCAVATION FIRE WATCH MAN YES NOEXCAVATION PERMIT YES NO FIRE EXTINGUISHERS YES NODAILY INSPECTION YES NO FIRE BLANKET YES NOBENCHED/SLOPED/STEPPED YES NO SHIELDS N/A YES NOLADDER PROVIDED YES NO CYLINDERS SECURED...SIGNS & BARRICADES IN PLACE YES NO ... & MOVED FROM SPARK AREA N/A YES NO

ELECTRICAL SPARKS CONTAINED N/A YES NOCORDS IN GOOD CONDITION N/A YES NO COMBUSTIBLES CLEARED N/A YES NOPLUGS & RECEPTORS NOT - FACE SHIELD N/A YES NO

BROKEN N/A YES NO BURNING GOGGLES N/A YES NOCORRECT VOLTAGE RATING N/A YES NO FRESH AIR N/A YES NOSTRUNG ABOVE GROUND N/A YES NO RESPIRATOR N/A YES NONOT THROUGH WATER N/A YES NO EAR PROTECTION N/A YES NO

SAFETY HARNESS N/A YES NOOTHERS: -------

LIFTING EMERGENCY EQUIPMENTRIGGING IN GOOD CONDITION YES NO FIRE EXTINGUISHER' N/A YES NOPROPER RIGGING YES NO SAFETY SHOWER N/A YES NOLIFTING ZONE BARRICADED YES NO EYEWASH N/A YES NOCURRENT INSPECTION ON CRANE YES NO REPAIR PROCESS EQUIPMENTOVERHEAD POWER YES NO VALVES LOCKED N/A YES NOLINES CLEARANCE (10'+) YES NO TAGS HUNG N/A. YES NO

OVERHEAD WORK OR FLOOR OPENING PROPER EQUIPMENTFIXED BARRICADES YES NO MANLIFT N/A YES NO(TAPE) DANGER N/A YES NO FORKLIFT N/A YES NO(TAPE) CAUTION N/A YES NO TRUCKS, TRACTOR ETC. N/A YES NOBARRIERS N/A YES NO HAND TOOLS N/A YES NOSIGNS N/A YES NO HAND POWER TOOLS N/A YES NOTRENCH & HOLE COVER IN GENERAL

PLACE N/A YES NO TRAFFIC WATCH N/A YES NOHANDRAILS/TOEBOARD N/A YES NO PERMIT & STARRT CARD N/A YES NO

DISPLAYEDREMARKS:

SUPERVISOR: SIGNATURE:_ _

FOREMAN: SIGNATURE:__

EMPLOYEE NAME: ID # EMPLOYEE SIGNATURE:

1 .__ ._ ...... ._____ ... ........__ _ . ..._ _ ..... _ _ ... .... ._ _ _ ._ ..._ _ _ ._ _ ., ,__ ,._ _ ._ _ _ ......................__ _ _ _2

45 _ _ _ = = == _ == __ __ .......... .......___

6 _. _ __ _ . ..... ........... - -

78 ---. .___________ ______ ________________..

1010 _._._ ....._._.__ _ ._______......._ __. ..... ._ _ . ._._ .__ .___ .... _.__-

11

121 2 ._. . ...... ____ -...... .---- __ _. __ ............................. ____,_ .

13

14_____________________ _______ _____

1 45 _ _ -__ .__ __ _ _

ANNEX 2

ANNEX 2. WASTEWATER QUALITY MONITORING SCHEDULE

Parameters Sample Frequency Agency Total Costs forIdentity Manila Water

(PhP/month)TOT=46,961.00

pH Influent, quarterly DENR 14,696.00Suspended solids effluent monthly MWSSDissolved Oxygen RegulatoryBOD 5 OfficeCOD weekly Manila WaterOil & greaseResidual ChlorineTotal ColiformFecal Coliform30-Minute settling Sample daily Manila Water 25,080.00test from

Aerationtank

COD effluentResidual Chlorine effluent _

Dissolved oxygen Return weekly Manila Water 2,640.00Sludge Volume activatedIndex sludge,Settleable Matter MixedSuspended Solids liquorTotal Solids tankspH Raw monthly Manila Water 4,545.00Suspended solids sludge,Cyanide DigestedCadmium sludgeChromiumCopperIronManganeseLeadZinc

ANN-EX 3

ANNEX 3. MANILA WATER PCO REPORT FORMAT

Pollution Control Officer'sReport

Period Covered: Quarter of 200_

General Infonmation

Niame of Firm: MANILA WATER COMPANY

Plant Address:

Nature of Busiiness: Utility

Plant Category: 1. 0 Air Pollutive 2. 0 Water Pollutive 3. 0 Air& Water Pollutive

NOTE: Sections To Be Filled-up. For Categoryl, Sections A & C; For Category 2,Sections B & C

And For Category 3, Sections A, B & C.

A. Air Pollution Aspect

A.1. Process Equipment

_* 1 1 2 3 4 5 6 7 8Air Pollution Hrs. Air Pollution Hrs. Air Cont. of Disposal

Source per Material Control per Pollutants Air of CollectedIistallations Qtr. Processed Facilities Qtr. Monitored Cont. Solid Wastes

I - Nanc of Air Pollition InstallaItionis 2 - Numnber of fioulrs of OperatioII of tlie Inistallation)ls Duringthe Quarter

3 - Nan me orf Niater ials lProcessed bv t hc Sooi re lIustalIlationis 4 - Na nie of t he l'ol hitio(1i ( Cntrl ol I)evicc of tIle I isialltatiOiFs

5 - Numtitber of 11ouirs iof i)pera tiosi of the ) esices D)uJring thle 0Quarter 6 - Nanme of Air ( ontamoinanits Monittored

7 - Concilettration of Air C ontainlhiianits Einlitted hb thi Installations 8 - Nanmc tie ( ollected Solid Wastes anil MI\eans of Disposal

A.2. Fuel Burning

* 1 2 3 4 5 6 7 8Air Pollution Hrs. Air Pollutiotn Hrs. Air Cont. of Disposal

Source per MN,laterial Control per Pol lutanits Air of CollectedInstallations Qtr. Processed Facilities Qtr. Mloniitored Cont. Solid Wastes

I - N a mc of Ai r lolitn ion Installations 2 - Number of Iloulrs of Operationi of the Installation DILi ringthc QOuarter

3 - Name of Niaterials l'rocessed by the Source installations 4 - Name of the lPollitioni Control Device of the Installations

5 - Nuimbxher of Hours of Operation of the l)eviees Dluiing the Quiarter 6 - Name of Air Contaminants by the Installations

7 - Concentration of Air Contaminants EmittedI b! the Installations 8 - Name the Collecte(d Soli(d \Vastes and ,Nleans of Dislposal

B. 1. Sources of Wastewater

Sources Quantity

1. Dotnestic 1 19,820 nm3 / d

2. Process 200.0 m3 / d

3. Cooling | 3 Id

4. Waslhings: Equipment | 2.6 m3/d

Floor | 2.0 m3 / d

B.2. Wastewater Treatment Process

* Treatment Scheme

Indicate vastew'aterflow; diirectioIns aiid rates a(ld the different tin its inivolved in tite process.

WaS RAS

Slidge Cake 4-J DRM NG BED DIGESTER C 1Eflitent

* Design Capacity of the Wastewater Treatment Facilities __ m3 / day

* Oper-ation of the Treatment Facilities:

Average llours/Day 24

Number of Days Duritig tile Quar-ter- 92

Sludge Nlanagentent

Qtuantity Produce: III3 ! day

Method Used for Sludge Thlickenini___Method Used for Sludgc TreatimientMlethod Used for Sludge DisposalFrequency of Disposal

B.3. Wastewater Characteristics

Attach restilts o 'thc monthhv phYsical and chicniic/ila lbornatoi)' analsis on the IVTP effluent.

Physical & Chemical Analysis include the following:

Parameters Restilts

Color Color Un

Temperature

pH

Suspended Solids mg

BODs nmg

Oil/Grease mg

C. Maintenance & Repairs Works (Indicate am' v breakdown o, tile air & water pollution installationtsproblenms enicoutntered in the operation; repair- & maintenance wsorks und(ler-taken & improvements umiade on thecontrol devices.)

Submittecl by: Attested by:

ANTONINO T. AQUINOPollution Control Officer President

Quality and RegulationLaboratory ServicesAnalytical Services

RESULT OF ANALYSISAC-O1-03-012AT-01-03-013

Source of SampleSubmitted byCollected byDate/Time CollectedDate/ Time SubmittedAnalyzed by Analytical Seniices Personnel

PARAMETER(S) RESULT(S)LIMIT(S) INFLUENT EFFLUENT

Color TCU 150.00Turbidity NTU -

Settleable Matter mLUL 0.50Suspended Solids, 1030C mg/L 70.00Dissolved Solids, 180'C mg/L __

pH 6.50-9.00Dissolved Oxygen (DO) mg/L _ _

Biochemical Oxygen Demand (BOD)s mg/L 50.00Chemical Oxygen Demand mg/L 100.00Surfactants (MBAS) mg/L 5.00Oil and Grease mg/L 5.00Phenols mg/L 0.10Cadmium mg/L 0.05Chromium (Cr'0 ) mg/L 0.10Copper mg/L -

Cyanide* mg/L 0.20 __

Iron mg/L -

Lead mg/L 0.30Manganese mg/L -

Zinc mg/LResidual Chlorine mg/L -

BACTERIOLOGICAL EXAMINATIONTotal Coliform MPN/100 ml 10,000Fecal Coliform MPN/100 ml -

Sample analyzed as submitted eur-equipment under repair Analyzed qualitatively

Certified Correct: Orig. Sgd.ELIZABETH P. SEVILLENO

Sr. Quality & Regulation OfficerDate Test Report Issued:

This report may not be reproduced in full and may not be used for advertisement or litigation purposes without permisssion ofMWC.This report is certified to have passed the MWC Quality Control procedures for reporting of analysis results.

ANNEX 4.

ANNEX 4. SAMPLE MONITORING SHEET FOR EFFLUENT QUALITY

Quality and RegulationLaboratory ServicesAnalytical Services

Ctrl. #: LE-00-06-004

RESULT OF ANALYSIS

Source of SampleSubmitted byCollected byDate/Time CollectedDate/ Time SubmittedDate AnalyzedAnalyzed by : Analytical Services PersonnelAnalytical Methods Used 'Electrometric, 2Cobalt-Platinum Scale, 3Gravimetric, 4Azide Modification,

50pen Reflux Dichromate, 6Multiple Tube Fermentation Technique

PARAMETER(S) LIMIT(S) RESULT(S)

pH 1 Units 6.50-9.00

Color 2 TCU 150.00

Suspended Solids3 mg/L 70.00

Dissolved Oxygen4 mgIL -

Biochemical Oxygen Demand 4(BOD)5 mg/L 50.00

Chemical Oxygen Demands mg/L 100.00

BACTERIOLOGICAL EXAMINATION 6

Total Coliform MPN/100 mL 10,000

Fecal Coliform MPN/100mLREMARKS: Sample analyzed as submitted

Submitted by: Certified Correct:Original Signed Original Signed

MA VIRGINIA B. PINEDA ELIZABETH P. SEVILLENOSr. Analyst Unit Head, Analytical Services

Date Test Report Issued:

This report may not be reproduced in full and may not be used for advertisement or litigation purposes without permission ofMWC.This report is cerified to have passed the MWC Quality Control procedures for reporting of analysis results.

ANNEX -5

ANNEX 5. ENDORSEMENT FROM BARANGAY CAPTAIN

Republic of the PhilippinesP'ANIAHIAL,AANC IIAItAN GAY NC WESI11l1N IKICIJTAPAN

T agIigu ivletro hiniiln

01FFICI'O F THE11 PUNONG IARANGAV

3 April 2001

To whom1) it rnay concern:

With the privatization of MWSS, Manila Wator Company, Inc. (IMlWCI) wasgiven the riglit to exclusively provido water, and sowerago;serOvices to theEastern part ol Metro Manila. In line willi Its service obligations, tho MWCI h2selected to upgrade the sewerage system of Philippine Army lousing.

WliEREAS, the present condition of sanitltlonrin Ihe area niay present hlzart)sto the heal.th of the residents of the coinmuzillty

WHEREAS, the exisling sewer treatment facility needs. to be upgrado6l so thatthe waslewater effluentt VAl meet enrironmental stanslards;

WHEREAS, the MWCI commits to upgrade the sewerage system PlilippineArmy I-lousing;

In recognition of the impact of thiis project in reducing the pollution load to theLaguna Lakeh, as well as the accompanying foeneflis to tlhe comrnmunily, I, tileundersigned, on behalf of the Barangay Council, .hereby give. my support andfavorable endorsement for the IMprovement of the sewerage system ofPhilippino Army Housing in Barangay Westem Bicutan, Taguig, Melro Manila.

Very truly yours,

RODOLFO M. GUIYABBarangay Chaimi

KGD:MARCE JR.61C 6F-a j ' ''E .

ANNEX 6

ANNEX 6. DRAFT MEMORANDUM OF AGREEMENT (MOA) BETWEEN MANILAWATER COMPANY AND THE PHILIPPINE ARMY

MEMORANDUM OF AGREEMENT

This Memorandum of Agreement made and executed on this _ day of 2001at Pasay City by and between:

MANILA WATER COMPANY, INC., hereinafter referred to as"MWCI", a corporation duly organized and existing under Philippine laws,acting as concessionaire/contractor/agent of the Metropolitan Waterworksand Sewerage System (the "MWSS"), with principal office at MWSSAdministration Building, 489 Katipunan Road, Balara, Quezon City,represented herein by its President, Antonino T. Aquino, thereunto dulyauthorized;

-and-

PHILIPPINE ARMY, hereinafter referred to as "PA", a branch ofthe Armed Forces of the Philippines organized and existing underPhilippine laws, with principal office at Fort Bonifacio, Taguig, MetroManila represented herein by its Commanding General, Jaime de losSantos, thereunto duly authorized;

WITNESSETH THAT:

WHEREAS, by virtue of and pursuant to a Concession Agreement datedFebruary 21, 1997 (the "Concession Agreement"), executed by and between theMetropolitan Waterworks and Sewerage System (the "MWSS") and MWCI, MWSSgranted to MWCI, as concessionaire/contractor/agent, the sole right to manage,operate, repair, decommission and refurbish all fixed and movable assets required toprovide water delivery and sewerage in Service Area East (the "Service Area") of thefranchise area of MWSS, which includes the Municipality of Taguig in Metro Manila;

WHEREAS, the PA is the owner and developer of the Philippine Army HousingProject (the "PA Housing"), consisting of 28 condominium buildings (with a total of384 units) constructed on parcels of land situated in Fort Bonifacio, Taguig, MetroManila, described in and covered by TCT Nos. of the Registry of Deedsof ;

WHEREAS, the Common Areas in the PA Housing include the sewer lines fromthe outlet of each building up to and including the septic vaults installed in PA Housingand sewer lines from the septic vaults up to and including the chlorine contact chamber,

(hereinafter collectively referred to as the "Sewerage System") ownership and title ofwhich Common Areas are presently in the name of the PA;

WHEREAS, in line with a program initiated by MWCI in pursuance of theConcession Agreement, MWCI has offered to operate and maintain the SewerageSystem, and the PA, as the present owner of said Common Areas has accepted saidoffer, upon and subject to the terms, conditions and stipulations hereinafter set forth;

NOW, THEREFORE, for and in consideration of the foregoing premisesand of the mutual covenants herein contained, the parties hereto have agreed, and dohereby agree, as follows:Article 1. RIGHTS AND RESPONSIBILITIES OF MWCI

1. Upon completion of the water service connection to the PA Housing'swater distribution system, MWCI shall extend technical assistance to thePA for the distribution of water to each cistern and overhead water tank.

2. Commencing from the date of signing of this Agreement, MWCI shall, atits expense, operate, manage, and maintain the existing SewerageSystem. MWCI shall submit a maintenance program and coordinatewith the PA prior to any repair/rehabilitation of the -existing SewerageSystem.

3. Subject to Item 1 of Article 2 hereof, MWCI shall, at its expense,construct a Sewage Treatment Plant (the "STP") to serve the PAHousing. Ownership of the STP shall be held by MWCI.

4. Prior to the construction of the STP, MWCI shall submit to the PA thedetails of the plans for the construction of the STP for the PA'sconcurrence, including the necessary permits to implement theconstruction. Upon completion of the STP, MWCI shall provide the PAwith copies of as-built drawings of the STP.

5. Commencing from the date of commissioning of the STP, MWCI shall beliable for any charges or fines that may be assessed for any violation ofthe national and local environmental laws and standards, provided thatthe said violations are not the result of or due to the acts, fault ornegligence of the PA and/or the residents of the PA Housing.

6. Commencing from the date of commissioning of the STP and after theavailability of surface water supply to the PA Housing, sewer chargesshall be incorporated in the MWCI water bill, which shall be paid by thePA based on the readings registered on the mother meter and deepwellmeters, and at rates in accordance with the Concession Agreement.

Article 2. RIGHTS AND RESPONSIBILITIES OF THE PA

1. The PA shall provide gratuitous easement on the lot on which MWCI shallinstall/construct the STP.

2. The PA shall ensure and guarantee to the authorizedpersonnel/representative(s) of MWCI, its contractors, successors, andassigns, free ingress to and egress from the Sewerage System for theexecution/performance of all works and activities in connection with theoperation, management and maintenance of Sewerage System.

3. In the event that the ownership of or title to any Common Areas andother areas on which gratuitous easements or rights of way areconstituted and/or intended to be constituted under this Agreement, istransferred or encumbered to another party, the PA shall see to it thatthe rights and obligations of the PA and MWCI under this Agreementand/or any amendment or extension thereof, shall be recognized,protected and respected by appropriate stipulation.

4. The PA shall execute a Contract for Water Service Connection with MWCIprior to installation of any water service connection. It is understood andagreed that the PA shall seek written consent from MWCI of its transferof rights and obligations under the said Contract to any duly registeredhomeowners association, or other legal aggrupation.

Article 3. EFFECTIVITY OF AGREEMENT

This Agreement, which shall take effect immediately upon its signing, shall beco-terminus with the Concession Agreement and be binding also to the successors,assigns and transferees of the parties.

IN WITNESS WHEREOF, the parties hereto have caused this Memorandum ofAgreement to be executed by their respective officers, thereunto duly authorized, onthe day and at the place hereinabove stated.

PHILIPPINE ARMY MANILA WATER COMPANY INC.

By: By:

JAIME DE LOS SANTOS ANTONINO T. AQUINOCommanding General President

SIGNED IN THE PRESENCE OF:

ACKNOWLEDGMENT

REPUBLIC OF THE PHILIPPINES)Quezon City ) S.S.

On this _ day of 2001, before me, a Notary Publicin and for , personally appeared thefollowing:

Name CTC No. Place of Issue Date of Issue

Jaime de los Santos*Antonino T. Aquino

both known to me and to me known to be the same persons who executed theforegoing Memorandum of Agreement, consisting of four (4) pages including this page,each of which has been signed by the parties executing the same and their two (2)witnesses, and they acknowledged to me that the same is their free and voluntary actand deed as well as the free and voluntary act and deed of their respective principals.

IN WITNESS WHEREOF I have hereunto set my hand and affixed my notarialseal on the date and at the place hereinabove stated.

Doc. No. ;Page No. ;Book No. ;Series of 2001

ACCOUNTABILITY STATEMENT OF THE PROJECT PROPONENT

This is to certify that all the information in the enclosed InitialEnvironmental Examination (IEE) are true, accurate, and complete. Should welearn of any information which would make the enclosed IEE inaccurate, we shallbring the said information to the attention of the Environmental ManagementBureau (EMB) of the appropriate DENR Regional Office and the EnvironmentalDepartment of World Bank.

We hereby bind ourselves jointly and in solidarity with the preparers forany penalties that may be imposed arising from any misinterpretations or failureto state material information in the enclosed IEE.

In witness whereof, we hereby set our hands this 21st day of December2001 at Quezon City.

Manila Water CompanyProject Proponent

by:

Antonino T noPresident

SUBSCRIBED AND SWORN to before me this 21St day of December2001, afflant exhibiting to me his Community Tax Certificate No. 05959688issued on January 12, 2001 at Quezon City.

Notary Public

Doc. No. C/o g /Page No. c ,, o a cBook No. 1•11Series of 2001 V P. -.5Yi,SX 2*a /

71 ai c ?c,