Environmental Safeguard Monitoring Report

Project No. 45148-005 Period Covering July – December 2017 April 2018

Sri Lanka: Greater Water and Wastewater Management Improvement Investment Program - Tranche 1 and Tranche 2

Prepared by the National Water Supply and Drainage Board for the Asian Development Bank. This environmental monitoring report is a document of the borrower. The views expressed herein do not necessarily represent those of ADB's Board of Directors, Management, or staff, and may be preliminary in nature. Your attention is directed to the “terms of use” section on ADB’s website. In preparing any country program or strategy, financing any project, or by making any designation of or reference to a particular territory or geographic area in this document, the Asian Development Bank does not intend to make any judgments as to the legal or other status of any territory or area Environmental Management & Monitoring Report

Bi - Annual Report (July – December) - Year 2017

ADB ASSISTED GREATER COLOMBO WATER AND WASTEWATER MANAGEMENT IMPROVEMENT INVESTMENT PROGRAM

Environmental Management and Monitoring Report Projects in Colombo city For the period from July to December 2017

Project Management Unit National Water Supply and Drainage Board Ministry of City Planning and Water Supply

Submitted to Resident Mission, Asian Development Bank, Colombo

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Item No Contents Page No

List of Figures iii List of Tables iii List of Abbreviations iv 1. Introduction of the Project 1 1.1 The indicative scope of physical works for the Project 1 & 2 1 2 Construction activities during the period 4 2.1 Key Activities of the project 4

2.2 Descriptive Details of Physical Progress – Package I 8 2.2.1 Problems encountered and solutions adapted 12 2.2.2 Permanent Reinstatements 13 2.3 Descriptive Details of Physical Progress – Package II 14 2.4 Construction of Ellie house Area Engineer’s office 15 2.5 Construction of booster pump stations in Colombo City (Eli house) 16 2.6 Construction of NRW Building 16 2.7 Descriptive Details of Physical Progress – Package III 17 2.8 Descriptive Details of Physical Progress – Package IV 17 2.9 Construction of proposed Training centre, Hostal Building & Canteen at Thelawala 18 2.10 Environmental and Social Safeguard activities 18 3. Environmental impacts, mitigation measures taken at site and monitoring 22 4 Environmental monitoring measures 42 4.1 System Rehabilitation for NRW Reduction in west part of the Colombo city(PIII) 42 4.2 Colombo East Area System Rehabilitation – Package II 44 5 Status of environmental licenses and permits for trial trench and pipe laying work 47 6 Public complaints 48 7 Conclusion and Recommendations 49

Annexes 1. Photographic Records 50 Annexes 2. Summary of the Public complain Register (P 2) 58

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Bi - Annual Report (July – December) - Year 2017 LIST OF FIGURES

Figure 1.1; Package 1 Area map

Figure 1.2; Package 2 Area map

Figure 1.3; Package 3 Area map

Figure 1.4; package 4 Area map.

Figure 2.1; PE pipes progress.

Figure 2.2; Transmission Main progress.

Figure 2.3; Feeder Main – South progress.

Figure 2.4; Feeder Main – North progress.

LIST OF TABLES

Table 1.1; Status of the loan Project Number: 45148

Table 2.1; Civil contracts in Project I & Project II

Table 2.2; Trial pits, Trial trenches - Trial Trench progress up to 31st December 2017.

Table 2.3; PE pipes progress.

Table 2.4; Transmission Main progress.

Table 2.5; Feeder Main – South progress

Table 2.6; Feeder Main – North progress

Table 2.7; Status of Trial Trench / Pit/ Pipe Laying.

Table 2.8; Progress of the NRW Building.

Table 2.9; Environmental and Social Safeguard activities. Table 3.1; Activities carried out in each subproject, their impacts to environment, mitigation measures, effectiveness and any further action needed

Table 4.1: Locations description of air quality measurements

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Table 4.2: Concentration of each parameter at the sampling location

Table 4.3: Description of Noise Monitoring Locations

Table 4.4: Noise Levels at each monitoring location on 17th October 2017

Table 4.5; Noise Monitoring Location Description– Package II

Table 4.6; Construction stage Survey – Noise Level Monitoring Results – Package II

Table 4.7; Construction stage Surveys – Ambient air quality sampling location description – Package

II

Table 4.8: Concentration of each parameter at each sampling location

LIST OF ABBREVIATIONS

ADB - Asian Development Bank AFD - Agence Francaise de Development NRW - Non-Revenue Water CMC - Colombo Municipal Council NWSDB - National Water Supply & Drainage DMA - District Meter Area Board EA - Environmental Assessment NGO - Non-Governmental Organization EIA - Environmental Impact Assessment O&M - Operation and Maintenance EMoP - Environmental Monitoring Plan PCP - Public Communications Policy EMP - Environmental Management Plan PIU - Project Implementation Unit EMS - Environmental Method Statement PMU - Project Management Unit EPL - Environmental Protection License PPE - Personal Protection Equipment ES - Environmental Specialist PPTA - Project Preparatory Technical GIS - Geographic Information System Assistance GOSL - Government of Sri Lanka RP - Resettlement Plan GRC - Grievance Redress Committee RSC - Regional Support Centre IEE - Initial Environmental Examination SPS - Safe Guard Policy Statement IEER - Initial Environmental Examination SLTB - Sri Lanka Transport Board Report DSDs - Divisional Secretariat Divisions

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Project Brief on ADB Assisted Greater Colombo Water and Wastewater Management Improvement Investment Program (GCWWMIIP) (Project 1&2)

1. Introduction of the Project The Government of Sri Lanka undertakes the Greater Colombo Water and Wastewater Management Improvement Investment Program (GCWWMIIP) with the recommendation of the National Water Supply and Drainage Board (NWSDB) and the financial assistance from the Asian Development Bank (ADB) and the Government of Sri Lanka (GOSL). The project comprises of, i. Establishing Greater Colombo NRW reduction mechanism; ii. Rehabilitating the water distribution network; iii. Strengthening institutional, operational and maintenance capacity of NWSDB; iv. Increasing public awareness on NRW The major objectives of the project are: i. Increase of water supply availability and efficiency in Colombo city; ii. Enhance the distribution system and reduce NRW from 49% to 18% by the year 2020; iii. Establish a long-term mechanism to reduce NRW; iv. Enhance the institutional, operational and project management capacity of NWSDB. Table 1.1; Status of the loan Project Number: 45148 Loan Number Project Name Status L2947 / 2948-SRI Project 1- Colombo Water Supply Loan signed on 28th June Service improvement Project (ADB) 2013. L 3029 / 3030 -SRI Project 2- Colombo Water Supply Loan signed on 03rd June Service Improvement Project (ADB)) 2014. L 3348 -SRI Project 3 - Colombo Water Supply Loan Signed on 11th August Service Improvement Project (ADB) 2016

1.1 The indicative scope of physical works for the Project 1 & 2 1. Replacement of System Input Volume (SIV) meters with electromagnetic meters for remote reading; 2. Rehabilitation of Colombo city water distribution network by replacing Cast Iron (CI) pipes with HDPE, PVC & DI pipes as per DMA concept and de-scaling & relining larger diameter pipes, introducing reinforcing pipes, establishment of DMA’s with electromagnetic meters for remote reading;

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Bi - Annual Report (July – December) - Year 2017 a. Area covered under the Project 01

Package 1 (No of DMAs-16) Covering Areas . Sammanthranapura . . . . Mahawatta . Aluthmawatha . Mahawatta . Lunupokuna . . -North . Bloumendhal . New Bazaar Figure 1.1; Package 1 Area map b. Area covered under the Project 01

Package 2 (No of DMAs – 20) Covering Areas . Grandpass- south . Maligawatte . . Maligakanda . Wanathamulla .

. Kuppiyawatta . Suduwella . . Nawam Mawatha . Suduwella .

Figure 1.2; Package 2 Area map . Gothamipura c. Area covered under the Project 02 Package 3(No of DMAs – 18)

Covering Areas . Jinthupitiya . Aluthkade . Kochchikada-North . Gunasinghepura . Pettah . Keselwatta . . Galle Face . . Wekanda . . Ibbanwala

Figure 1.3; Package 3 Area map

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Bi - Annual Report (July – December) - Year 2017 d. Area covered under the Project 02 Package 4 (No of DMAs-21)

Covering Areas . Thimbirigasyaya . . Milagiriya . . Kirulapone . .

Figure 1.4; package 4 Area map.

3. Replacement of identified large customer meters with electromagnetic meters for remote reading; 4. Replacement of defective water meters; 5. Calibration and updating of the GIS network; 6. Replacement of spaghetti pipes with larger diameter pipes; 7. Construction of a NRW building & Area Engineers offices. 8. Implementation of Active Leakage Control policies, speed and quality repairs; 9. Pressure management in District Meter Areas (DMA) and establish customer service Management on GIS based model; 10. Implementation of effective public awareness campaign with effective participation of women and NGOs. 11. Establishing GIS based asset registry for Regional Support Center for Western Central RSC – (WC): 12. Rehabilitation of plumbing system in government apartments.

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Bi - Annual Report (July – December) - Year 2017 2. Construction activities during the period

2.1 Key Activities of the project Table 2.1; Civil contracts in Project I & Project II

Project 1 Contracts Contract No. Current Status Civil Works 1. Colombo CWSSIP/ADB/CIVI Contract awarded to TODA-Sierra Joint venture on North Area L/ICB/01 30th October 2014 & commencement on 05 January System 2015. Rehabilitation – Pipe Laying 87km Package I Pressure testing 56km Flushing & Disinfection 28km Road Reinstatement 30km Transfer of service connections 5876Nos Planned Physical progress 74.00% Actual Physical progress 44.80% Planned Financial Progress 45.68% Actual Financial Progress 41.48% NRW Management in DMA 03 & 01- reduced to below 18%. in DMA 4A – NRW management work is in progress 2. Colombo CWSSIP/ADB/CIVI Contract was awarded to Kolon Global Corporation East Area L/ICB/02 on 12th March 2015 & commencement on 13th July System 2015. Rehabilitation - Pipe Laying 55 km Package II Pressure testing 23km Flushing & disinfection 6 km Road reinstatement 7 km Connections Transfer 1500 Nos Planned Physical Progress 65.00% Actual Physical Progress 26.50% Planned Financial Progress 38.37% Actual Financial Progress 31.50% NRW Management is progressing at DMA 27A, 30D & 30A.

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Buildings 3. Elie house GCWWMIIP/ADB/ Contract awarded to M/s Darinton Construction on Area Engineer’s BUILD/ELLI/NCB/ 11/06/2016 & commencement on 20th July 2016. Office 02/R Ground floor brick work 97% First floor brick work 97% Second floor brick work 95% Third floor brick work 60% Ground floor plastering 90% First floor plastering 95% Second floor plastering 90% 3rd floor plastering 10% Fire staircase from SF to TF 100% First floor wiring works 60% Second floor wiring works 10% Planned Physical Progress 90.00% Actual Physical Progress 70.00% Planned Financial Progress 65.40% Financial Progress 32.52% 4. NRW GCWWMIIP/ADB/ Contract was awarded to Link Engineering (Pvt) Ltd building at BUILD/ on 23rd March 2017. Maligakanda. NRW/NCB/03 Mobilization & temporary works 100% Setting out work for Raft Foundation 100% Shoring work for Raft Foundation 100% Excavation for Foundation 100% Screed concrete for Raft Foundation 100% Casting of Raft foundation 100% Concrete for Columns up to 1st floor level 90% Concrete for 1st floor slab and beams 90% Concrete for columns up to 2nd floor level 90% Concrete for 2nd floor Slab and Beams 90% Concrete for columns up to 3rd floor 90% Concrete for 3rd floor slab and beams 98% Concrete for 4th floor slab and beams 95% Formwork for columns up to 4th floor slab 50% R.R. Masonry for Foundation 10% Planned Physical progress 22% Actual Physical progress 22% Planned Financial Progress 20% Actual Financial Progress 19.18%

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9. SMEC GCWWMIIP/ADB/ Assist the PMU in successfully implementing and International NRWCSC/QCBS/10 achieving NRW reduction targets in Tranche 1 & 2. Pty Ltd Package 01: System Rehabilitation for NRW (SMEC), Reduction in North of Colombo City - TODA – Sierra Australia and Joint Venture SETEC Package 02: Kolon Global Corporation. System Engineering Rehabilitation for NRW Reduction in East of GmbH & Co Colombo City. KG (SETEC) of Construction of Area Engineers Office @ Ellie House Austria as JV Construction of NRW Office Building @ Partners in Maligakanda) association with Package 03: System Rehabilitation for NRW OCYANA Reduction in West of Colombo City. -China Harbour Consultants & China Geo Joint Venture (Pvt) Ltd Package 04: System Rehabilitation for NRW Reduction in South of Colombo City. -Sinohydro Corporation . Construction of Training Center, Hostal Building & Canteen at Thelawala Project 2 Contracts Contract No. Current Status Civil Works 5. Colombo CWSSIP/ADB/CIVI Contract was awarded to China Harbour Engineering West Area L/ICB/03 Company Limited and China Geo Engineering System Corporation Joint Venture, on 20th October 2016 & Rehabilitation. - commencement on 01st March 2017. Package III Completed 126 nos. of Trial Trenches covering of 8 DMAs and two Feeder Mains totally completed. Planned Physical Progress – 3.0% Actual Physical Progress – 2.5% Planned Financial Progress –20.00% Actual Financial Progress – 18.39% Topographic survey and LS Survey has already been started in several DMAs. Up to the end of November 121.8km has been surveyed and 16 DMAs survey result has been submitted. Twelve DMA survey results have been approved. House to house survey ongoing. Pipe laying started in DMAs 7B, 8B, 15Aand 21 .The total length of the laying is 3,585.42 m

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6. Colombo (CWSSIP/ADB/CIV Contract was awarded to Sinohydro Corporation Ltd South Area IL/ICB/04 on 10th January 2017 & commencement on 5th June system 2017. Rehabilitation - Planned Physical progress -1.50% Package IV Actual Physical progress -1.00% Planned Financial Progress – 16.00% Actual Financial Progress -10.55% LS survey of initially identified roads is in progress and 164.9km of LS survey was completed as of 31th December 2017 House to House Survey - No. of houses completed 15,894 out of total 35,000 houses. Buildings 7. Construction GCWWMIIP/ADB/ Contractor: Darinton Construction (Pvt) Ltd of Proposed PH/CIVIL/NCB/05 Date of Commencement: 01st December 2016 Pump House at Ellie House Planned Physical progress 75.00% Actual Physical progress 75.00% Planned Financial Progress 37.67% Actual Financial Progress 27.33% 8. Construction GCWWMIIP/ADB/ Contract was awarded to Sierra Construction Ltd. of Proposed BUILD/TRAINING/ Date of Award 05th December 2017 Training Centre, CENTER/NCB/08 Date of Commencement – 02nd January 2018 Hostel Building Date of Completion- 01st July 2019 & Canteen at Contract Period -18 months Thelawala

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2.2 Descriptive Details of Physical Progress – Package I Critical construction activities that were carried out in each project during the reporting period are listed below. (a) Civil work

Table 2.2; Trial pits, Trial trenches - Trial Trench progress up to 31st December 2017. DMA No Design stage (m) Construction Stage (m) Transmission Main 142.9 532.81 DMA 1 79.7 596.45 DMA 2 260.55 1105.86 DMA 3 48.55 398.66 DMA 4 175.4 322.1 DMA 5 272.35 433.37 DMA 6 269.85 334.5 DMA 9 305.85 588.64 DMA 10 180.53 217.43 DMA 11 139.94 609.67 DMA 26 58.5 238.8 Total 1933.31 5377.69

Trial trenches excavations required for verification of the model as well as for the 1200mm. transmission line have been completed for all DMAs. Altogether, 270 locations were excavated. Almost all such locations are permanently reinstated now.

However, it was observed that some of the lines, recently laid according to the model were not detected during excavation. There were 34 such locations and few locations were re-excavated while others are being verified with the assistance of the O&M Division of the NWSDB.

Subsequent to the joint inspection along the route for 1200mm. DI transmission line, decision was made to excavate few more trial trenches at identified locations on Madampitiya and Bluemendle Roads. These were now completed and after the final review it was decided to use the originally proposed route. A joint inspection was carried out at the Ellihouse premises and an entry point for the 1200MM. TR line was identified. After obtaining permission from the CMC few trial trenches

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Bi - Annual Report (July – December) - Year 2017 were excavated between Aluth Mawata and Ellihouse premises along the proposed path. It was noted that information obtained from initial trial trench investigations is inadequate for understanding and figuring out the existing network and this will complicate the matters when it comes to the stage of connecting new lines and disconnecting identified old lines. As such, it was agreed that in the new DMAs prior to pipe laying work, further trial trench excavations will be carried out in agreed locations. This will be an integral part of the implementation plan for those DMAs.

Due to the presence of many underground utilities and unpredictable change of their paths along the road, it was agreed that a large number of trial trenches will be required along Madampitiya Road for laying of 1200MM. TR line. Locations will be jointly identified and excavation will be carried out immediately preceding pipe laying work.

i. Pipe Laying progress. Table 2.3; PE pipes progress. Time period Planned Cumulative Actual July 2017 72,945 67,945 Aug. 2017 77,945 70,772 Sept. 2017 82,945 74,096 Oct. 2017 87,945 77,851 Nov. 2017 92,945 80,471 Dec. 2017 97,945 82,256 Figure 2.1; PE pipes progress.

Table 2.4; Transmission Main progress.

Time period Planned Cumulative Actual Cumulative July 2017 623 623 Aug. 2017 679 679 Sept. 2017 754 712 Oct. 2017 929 749 Nov. 2017 1,120 756.66 Dec. 2017 1,304 776.56 Figure 2.2; Transmission Main progress.

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Table 2.5; Feeder Main South progress Planned Cumulative Actual – July 2017 1310 1590

Aug. 2017 1590 1888

Sept. 2017 1888 2138

Oct. 2017 2112 1958

Nov. 2017 2432 2013.81

Dec. 2017 2882 2134.34

Figure 2.3; Feeder Main South progress.

– Table 2.6; Feeder Main North progress Planned Cumulative Actual – Feeder Main - North

1500 Aug. 2017 312 160 1000 Sept. 2017 512 200 500 0 Oct. 2017 712 300 Aug. Sept. Oct. Nov. Dec. Nov. 2017 912 306.2 2017 2017 2017 2017 2017 Dec. 2017 1112 306.2 Planned Cumulative Actual

Figure 2.4; Feeder Main – North progress.

Main pipe laying work in DMA 3, DMA 4A and DMA 1, with installation of step valves is completed. Lines on by roads are being investigated to determine the lines need to be replaced. All pipe laying work and connections transfer in in DMAs 1 and 3 are complete along with disconnecting the abandoned lines and NRW management work is in progress.

In both above DMAs, as well as in DMAs 2A,2B and 9B, a large quantity of existing PVC lines which were not bundle connections were replaced on PM(CN)’s instructions.

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It was decided to develop implementation plans for all DMAs to carry out pipe laying in an optimum sequence with due consideration for connecting new lines to the system and disconnecting some of the old lines.

Accordingly, detail implementation plans were developed for DMA 9B, ,11A,11B & 5A giving the sequence of operations, starting with the installation of temporary valves continuing with systematic connecting new lines and disconnecting identified old lines.

Many section valves are either cannot be operated or cannot be located due to subsequent road rehabilitation work and this presents a problem of having to interrupt the water service in a large area. In order to overcome this, the contractor proposed installation of decommissioning valves on temporary basis at mutually agreed locations and the proposal was approved. The first service interruption requested for installation of 2 nos. of such valves is awaited. However, the Engineer’s instructions were to carry out such installations, as much as possible, without service interruptions with the assistance of the O&M Division.

ii. Laying of 1200MM. Transmission Main The laying of Transmission Main commenced on 30th June 2016 in Madampitiya road.

Presently the work is in progress in Lueas Road, Ferguson section where intensive dewatering and driving of sheet piles are involved and in Aluth Mawatha section where rock blasting is involved as well as on Madampitiya Road. As at now, a total length of 776.56m of laying is completed and about 200m of it are restraint pipes.

In Madampitiya road a 300m long section was being prepared for pressure testing.

Pressure testing met with difficulties due to inadequacy of space to provide bases to resist the developing pressure at two ends during the testing. The alternative is to extend the pipe laying until both ends have adequate restrained length so that the force transferred to the end are manageably.

iii. Laying of Northern and Southern Feeder Mains Pipe laying in Northern Feeder main commenced on 4th October 2016. However, the laying of the Northern feeder main was stopped at 306.2m due to the continuous leaks experienced in the 400mm DI and 100/200 CI pipe lines

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Balance DI pipe laying for Northern feeder main to recommence after completion of the distribution main along the Modara Street and transferring of service connection followed by abandoning of the above corroded existing DI and CI pipe lines.

Pipe laying for Southern feeder main has been started by laying 1200mm Di pipe line along the Walls lane from the 15th December 2016. As at today 314m of pipe laying is completed on walls lane. On the Aluth Mawatha section of SFM, 518.47m of 1000mmdia DI pipes and 202m of 400mm DI pipes were laid. Also on Cyril C. Perera Mawatha 507.10 of 500mm DI pipes were laid.

The permission from the Sri Lanka Port Authority is not yet granted for the feeder main laying in their premises. As such an alternative route is being investigated.

The total length of pipe laying completed up to the end of the December 2017 is 85,474.38m while 56,156m on pressure tested.

2.2.1. Problems encountered and solutions adapted. i. Unforeseeable Obstruction Experienced During Northern Feeder Main (NFM) Construction at Modara Street Due to the leaks experienced from the deteriorated CI pipe line in Modera Street, the NFM laying was temporary stopped in this road. It has been decided to re-commence pipe laying in this road after completion of the distribution main along the Modera Street and transferring of service connection followed by abandoning of the above deteriorated existing pipe line. ii. Rock Excavation in Aluth Mawatha Road. The rock formation of this road is very close to the surface. As this area is a highly build up area and also a busy commercial area, conventional rock blasting using explosives cannot be adopted and blasting using chemicals was being carried out. The progress of the blasting using chemicals was not at the required level.

iii. Permission from SL Port Authority for the Work in Southern Feeder Main Line Due to the proposed via duct project of the RDA and SLPA, alternative routes are being investigate for Southern feeder main.

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Bi - Annual Report (July – December) - Year 2017 iv. Labour Shortage Due to non-availability of skilled and unskilled labours it is difficult to maintain the adequate labour strength in order to achieve the progress as planned by the contractor. In order to overcome labour shortage, labourers were brought from India and engaged on the work.

v. Re-done of temporary road reinstatement Due to the heavy rains experienced and the heavy traffic movements the temporary reinstatements carried out after pipe laying were heavily deteriorated and those areas were repeatedly reinstated several times. It was hampered the progress of pipe laying and other associated works.

In order to avoid this situation, permanent reinstatement was carried out soon after the pipe laying (before pressure testing and connection transferring). vi. Unforeseeable, Excessive Obstruction Encountered During pipe laying excessive number of unforeseen obstructions such as covered manholes and chambers, constructed by various utility agencies, drainage crossings dead and live power and telecom cabels, deteriorated sewerage crossing etc. were encountered and those were to be avoided. As such pipe routs were diverted and laying depth of new pipes was adjusted to suit the site conditions.

2.2.2. Permanent Reinstatements Permanent Reinstatements was carried out after completion of backfilling and compaction according to the specification. Scarified and trimmed the broken edges a base of ABC was laid and compacted by means of roller. Compacted ABC layer was 225 mm thickness of (to attain minimum 98% MDD as per specification). Applied a prime coat of emulsion bitumen (CSS 1) - at the rate of 0.5 litter per square meter. Overlaying of bituminous coat with the application of 50 mm thick asphalt concrete was done.

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2.3. Descriptive Details of Physical Progress – Package II a. Civil work

Table 2.7; Status of Trial Trench / Pit/ Pipe Laying.

Trial trench identification process for design purpose was completed for all DMAs except for unapproved locations from relevant authorities such as CMC, RDA, etc. Selected trial pit/trench locations were verified by carrying out detailed field inspections for commencing the trial pit excavation works.

Public awareness was done by contractor before commencing trial trench and pipe laying. Awareness notices were distributed to public to make them aware of the on-going project activities.

The Contractor coordinates with relevant authorities and other parties through the Employer and obtains permission for the excavation and pipe laying. SLTB and private bus companies were informed at least one week before, if any traffic re-routing happens due to the excavation and pipe

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Bi - Annual Report (July – December) - Year 2017 laying work. In such case, alternative routes were provided and at the both ends of the closed roads signs was be placed. During excavation, half of the road was closed to minimize the disturbance. Traffic control and the road safety program proposed during the day and night. Traffic controllers were provided with illumination (Duel Color) traffic controlling battens to manage the traffic. Further, hazard warning flash lights were installed to warn the motorists in night. Traffic signs and safety equipment’s (warning and safety sign boards, safety jackets, safety helmets, safety gloves, gum boots, barricade tapes, traffic cones & blinking lights were provided during excavation.

The Contractor was taken reasonable measures to control air pollution due to dust from their construction activities. Earth surface causing emission of dust was kept moist with water. Dusty material in transit was covered as practical as possible to prevent blowing in the wind. Sufficient number of water bowsers was used to above purpose. Machinery and equipment was operated under normal conditions to avoid noise. The Contractor was maintain the roads to be reinstated until they are permanently reinstated after completing pipe laying work including pressure testing of pipelines and testing of the backfill of the trenches.

i. Challenges faced by the Contractor during construction

a) Labour Shortage Due to non-availability of skilled and unskilled labour, it is difficult to maintain the required working crews as per the approved work programme. In order to avoid this issue permission was sought to bring the skilled and unskilled labour from India.

b) Unforeseen obstruction encountered Unforeseen obstruction such as manholes, telephone cables, drainage lines etc. encountered during laying of feeder mains and those are to be avoided. As such pipes routs are diverted and laying depth of new pipes are adjusted to suit the site conditions.

2.4. Construction of Ellie house Area Engineer’s office The building was designed as five story building and it is planned to construct first three stories under this contract. The work comprises of Construction of first three stories in the building with a total floor area of approximately 1,376.00 m2.

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2.5. Construction of booster pump stations in Colombo City (Eli house) The proposed pump station is having eleven pumps and total floor area is around 500 m2. Commencement date of contact is 1st of December 2016, construction is in progress. 2.6. Construction of NRW Building. The proposed building is designed as seven story building and it is planned to construct all stories under this contract. The work comprises of Construction in the building with a total floor area of approximately 2884.00 m2.

Table 2.8; Progress of the NRW Building. No Item As per the Program (%) Achieved Progress (%)

1 Mobilization & temporary works 100% 100%

2 Setting out work for Raft Foundation 100% 100%

3 Shoring work for Raft Foundation 100% 100%

4 Excavation for Foundation 100% 100%

5 Screed concrete for Raft Foundation 100% 100%

6 Casting of Raft foundation 100% 100%

7 Concrete for Columns up to 1st floor 100% 90% level

8 Concrete for 1st floor slab and beams 100% 90%

9 Concrete for columns up to 2nd floor 100% 90% level

10 Concrete for 2nd floor Slab and Beams 100% 90%

11 Concrete for columns up to 3rd floor 100% 90%

12 Concrete for 3rd floor slab and beams 100% 98%

13 Concrete for 4th floor slab and beams 100% 95%

14 Formwork for columns up to 4th floor 100% 50% slab

15 R.R. Masonry for Foundation 100% 10%

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2.7. Descriptive Details of Physical Progress – Package III. DMA 7B, 12A, 12C, and 7A final design approval Prepare and submit the detail design drawing of the DMA 7C and DMA 15A for engineer’s review and approval. Prepare submitted the proposed trial trench/ trial locations of the DMA 19A and supplementary trial trenches / pits foe DMA 12A and DAM 14 for the engineer’s review and necessary approval and permission from CMC.

Topographic survey and LS Survey has already been started in several DMAs. LS Survey is being carried out by three surveyors using total station method of all roads as instructed by NWSDB. Up to the end of November 121.8km has been surveyed and 16 DMAs survey result has been submitted. Twelve DMA survey results have been approved.

From trial pits/trenches parameters such as pipe diameter, pipe condition, pipe material, depth, soil condition and a proximate distance to other utilities shall be recorded.

Trial pits/Trial trenches will be also for the purpose of identifying the suitable trace for new lines. Trial pits/Trial trenches excavation commenced on first week of July.

Up to the end of December totally 126 trial trenches completed altogether covering of 8 DMAs and two Feeder Mains totally complied

Pipe laying started in DMAs 7B, 8B, 15Aand 21 .The total length of the laying is 3,585.42 m

2.8. Descriptive Details of Physical Progress – Package IV. Pre-construction LS survey of initially identified roads is in progress and 164.9km of LS survey was completed as of 31th December 2017 and draft key plan for 88.5km completed was submitted for client’s review on 26th September 2017.

A DMA implementation plan was prepared by the Contractor for DMA’s which can be rehabilitated independent of feeder main construction.

During this month the Contractor reviewed the DMA’s along Galle Road concerning possible interconnections to finally decide whether the boundary can be maintained in Galle road or has to be shifted eastwards. Pre-construction activity House to House Survey has started and has covered approx. 15% of service connections so far.

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2.9. Construction of Proposed Training Centre, Hostel Building & Canteen at Thelawala This proposed building is designed to construct as five stories under this contract. The work comprises of construction of all the stories in the building with total floor area of approximately 9,800m2, including the supply and installation of basic services and utilities such

• Air conditioning & mechanical ventilation system • Water supply &drainage system • Elevator Systems • Fire protection ‘ • Lightening protection system • CCTV/Security system • Telephone, local area network system & public addressing system Physical progress up to 31/12/2018

• Completion of site clearing, debris removing & removing of trees • Completion of Demolition of the Security hut • Construction of the contract’s office • Construction of the consultant’s office. • Completed of constructing the temporary security hut • Finalizing the piling sub-contractor and mobilizing the machinery and equipment

2.10. Environmental and Social Safeguard Activities. The Greater Colombo Water and Wastewater Management Improvement Investment Programme (Tranche 1 & Tranche 2) have been implemented environmental and social safeguards activities leading to completion of the project objectives. These activities in general have impacts on physical, ecological and social environments for which mitigation measures have been taken by the contractor under the supervision of PIU, PMU and NRWCSC. The effectiveness of mitigation measures has been monitored and recorded by the contractor and PMU and NRWCSC. Table below summarizes the progress of the activities carried out in each subproject (The data has been recorded since Oct. 2017).

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Table 2.9; Environmental and Social Safeguard activities.

Sl. Oct. Nov. Dec. Bi Annual Description Remarks No. 2017 2017 2017 Cumulative ENVIRONMENT Quantity of wastes are disposed at Permission 1 designated place as advised by 664 3,656 2,106 6,426 obtained from client/consultant (cubes). CMC/ CEA 2 Electrical energy consumed in units 22,462 27,798 26,184 76,444 3 Qty. of water consumed in units 2,209 2,695 3,377 8,281 4 Qty. of Diesel used in liters 31,744 52,085 53,463 13,7292 5 Diesel Generator Running in Hours 4,260 5,310 6,744 16,314 6 Quantity of Cement used in Bags 797 1,184 1,321 3,302 7 Cement Waste generated in Bags 6 16 14.5 36.5 8 Quantity of Steel used in Tons 31.95 5.34 37.22 74.5 Quantity of Steel Scrap generated in 9 0.04 0.074 0.009 0.123 Tons 10 Ambient Air Quality Monitoring 0 1 0 1 11 Water Quality Monitoring 1 1 0 2 12 Noise & Vibration level Monitoring 1 2 4 7 No. of mock drill conducted at site (eg. 13 fire, working at height, electrical and 0 0 0 0 confined space) HSE TRAINING –

No of HSE training program conducted. 36 85 75 196 14 No of employees participated. 441 1,842 1,621 3,904 Total No of training hours 33.8 40.5 39.85 114.15 No of Health related program conducted. 18 34 23 75 15 No of employees participated. 197 725 607 1,529 Total No of training hours 18.75 19.5 14 52.25 No of Safety related program conducted. 11 36 39 86 16 No of employees participated. 127 942 832 1,901 Total No of training hours 10.05 15 19.7 45.2 No of Environment related program 7 15 13 35 conducted. 17 No of employees participated. 117 175 182 474 Total No of training hours 5 6 6.15 17.15 No of Specific training program 0 7 0 7 conducted. 18 No of employees participated. 0 93 0 93 Total No of training hours 0 1.5 0 1.5 SAFETY 19 No of fatal incident 0 0 0 0 No of LTA (Lost Time Accident) 20 2 2 2 6 reported 21 No of Man Days lost 56 15 9 80

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Environmental Management & Monitoring Report

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Sl. Oct. Nov. Dec. Bi Annual Description Remarks No. 2017 2017 2017 Cumulative 22 No of Near Miss accidents 4 1 2 7 23 Frequency Rate: (Number of lost time injury x 1000000) - 0.008% 0.008% - (Total Man hours worked) Severity Rate: (Man days lost due to LTA x 24 1000000) - 0.06% 0.04% - (Total Man hours worked) Trench collapse, 25 No of incident occurred - 39 42 81 Utility damages…etc. 26 Total No of Man days ( Package 1) 5800 5800 4800 16400 27 Total No of Man days ( Package 2) 9256 9786 9710 28752 Total No of Man days ( Ellie House Eng. 28 920 1272 1591 3783 Office & Pump house) 29 Total No of Man days ( NRW Building) 990 1150 1117 3257 30 Total No of Man days ( Package 3) 739 207 4656 5602 31 Total No of Man days ( Package 4) 951 180 278 1409 32 No of Internal Audit conducted. 2 6 3 11 33 No of HSE Committee meeting conducted 2 1 2 5 34 No of HSE join inspection conducted 0 3 2 5 No of HIRA document prepared for high 35 0 0 0 0 risk activities and reviewed. 36 No of PPE Inspection conducted 1 1 25 27 No of HSE inspection conducted for 37 1 1 1 3 storage of materials at store and site. PUBLIC COMPLAIN MONITORING. No. of complain Received 3 8 5 16 38 No. of complain Attend. 3 8 3 16 No. of complain Solve. 3 8 3 16 GRIEVANCE REDRESSES No. of grievances registered - 5 3 8 39 Disclosure of grievance - 5 3 8 PERMIT/APPROVALS OR LICENSE EPL/IEE 0 0 0 0 Local Authority/CMC 18 19 18 55 Police/Court 1 4 19 24 40 GSMB 0 0 0 0 SLRDC 0 2 0 2 CEB/LECO, SLT, RDA/PRDA 4 2 0 6 & Others. OCCUPATIONAL HEALTH No of workers examined for pre-medical 41 - - - - test for fitness certificate. Planed to conduct No of workers examined for breathing & programs in 2018. 42 BP test for high work and underground - - - - work. .

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Environmental Management & Monitoring Report

Bi - Annual Report (July – December) - Year 2017

No of operators, drivers, and riggers of 43 lifting devices &construction machinery - - - - examine for vision test. No of Medical Camps conducted at site for 44 - - - - workers once in 6 months. No of workers protected by a vaccination 45 - - - - due to communicable diseases.

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Environmental Management & Monitoring Report

Bi - Annual Report (July – December) - Year 2017

3 Environmental impacts, mitigation measures taken at site and monitoring Key activities discussed under section 2 have been carried out in each subproject during the reporting period. There are impacts on physical, ecological and social environments for which mitigation measures have been taken by the contractor under the supervision of PIU, PMU and NRWCSC. The effectiveness of mitigation measures has been monitored and recorded by the contractor and PMU and NRWCSC. In cases where further actions were needed, the PMU and NRWCSC have advised the contractor. Table 3.1 below summarizes the activities carried out in each subproject, their impacts to the environment, mitigation measures taken to avoid/ minimize the adverse impacts, effectiveness of the mitigation measure adopted and any further action needed.

Table 3.1; Activities carried out in each subproject, their impacts to environment, mitigation measures, effectiveness and any further action needed

No Activity Environment Mitigation Measures Monitoring Parameters Issue/s 1 Excavation of Trial Impact on Aligning barricades Barricades are aligning pits and trenches pedestrian from open trenches Displaying warning boards Warning boards are displaying carrying out awareness program Public awareness programs were carried out Excavation of Trial Materials Temporary stacking the excavated Temporary yard is selected pits and trenches stacking at the material at temporary yard edges of the excavations Excavated material is disposed at selected yard Haul away the excavated materials Disposal yards are selected from the excavation site and deposited in an approved area.

Excavated material is disposed at selected yard

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Environmental Management & Monitoring Report

Bi - Annual Report (July – December) - Year 2017

Maintenance the stockpile where can Stockpiles are maintained be brought back to the trenches as selected filling material

Excavated material is reuse for backfilling The excavated earth shall always be Trench protection measures are taken as per dumped on the side opposite the Engineer's recommendation carriageway to not to crate bottleneck on the roadway. Excavation of Trial Trench collapse Use non-explosive blasting chemicals Engineer approved control blasting guide line is pits and trenches for rock and concrete breaking. available

Engineer approved control blasting guide line is strictly followed Apply standards shoring methods. Trench protection measures are taken as per Engineer's recommendation Provide lights, high visibility warning Adequate safety measures on public safety are signs, and barricades, in the event that provided excavated trenches are to be kept open overnight. Minimize material stacking and vehicle Surface cracks or collapse signs are not appeared movement at the edges of the trench. Excavation of Trial Environmental Vehicles travelling to and from the Visible sign boards on speed limit are displayed at pits and trenches Pollution caused construction site adhere to speed limits the site by dust so to avoid producing excessive dust. generation

Access and other cleared surfaces, Adequate water bowsers are deployed including backfilled trenches, keep wet especially in dry and windy conditions to avoid excessive dust.

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Environmental Management & Monitoring Report

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Reinstate (temporary or permanently) Reinstement are done as per Engineer's/CMC the backfilled trenches. recommendation Excavation of Trial Environmental Vehicles and machinery are kept in Conditions of machinery, equipment, and oil pits and trenches Pollution caused good working order and to meet storage tanks for oil spilling are checked regularly by traffic manufacturer’s specifications. congestion Implement approved traffic Traffic control system is approved by the engineer management plan. Regular traffic control system is implemented Schedule trenching works during night Regulatory authority permission is obtained for time as much as possible. the night work

Consider low-traffic areas for daytime Regulatory authority permission is obtained for trenching works. the day work 2 Hauling of excavated Community/ The excavated materials shall be Trucks are fully covered while transporting dusty materials Occupational covered by tarpaulin covers, when material health transporting. endangered by dust generation Conduct awareness program to the Regular toolbox meetings and awareness program hauling vehicle drivers on speed limit. were carried out Hauling of excavated Public and Hauling vehicles always be present at Adequate hauling vehicles are provided. materials Occupational the excavation site to prevent safety overloading endangered by falling objectives. conduct awareness program to the Safety awareness programs were carried out for hauling vehicle drivers on public and nearby community and employees occupational safety. Hauling of excavated Environmental Deposit all excavated material, to the Approvals for the dumping yards were obtain materials pollution caused approved dumping yard only. by unsafe

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Environmental Management & Monitoring Report

Bi - Annual Report (July – December) - Year 2017

dumping of hauling material. Excavated material is disposed at selected yard Implement dumping yard and disposal Disposal yards are regularly reinstated yard rectification program. Hauling of excavated waterways Any chemicals or hazardous Water quality monitoring periodically materials pollution caused substances do not allow to by dumping of contaminated the soil or water on-site. hauling material. Runoff from vehicle washing does not Surrounding water bodies are appeared as free allow to enter water ways. from pollution by vehicle washing water Select disposal yards away from Regulatory authority permission is obtained for waterways the disposal yard/s Hauling of excavated Accident risk Implement approved traffic Traffic control system is approved by the engineer materials caused by poor management plan. traffic arrangement and careless vehicle driving. Conduct awareness program for Safety awareness programs were carried out for drivers. drivers Employ drivers with adequate Experienced and valid license holding drivers are experience. employed 3 Pipe-laying Occupational Apply standards shoring methods. Trench protection measures are taken as per safety Engineer's recommendation endangered by collapsing embankment of deep trenches. Minimize material stacking and vehicle Surface cracks or collapse signs are not appeared movement at the edges of the trench.

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Environmental Management & Monitoring Report

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Take immediate action when crack Rectification of crack propagation are taken place propagate on the trench Pipe-laying waterways Any chemicals or hazardous Surrounding environmental sensitive areas are not pollution caused substances do not allow to polluted as a result of discharging chemicals or by dewatering contaminated the soil or water on-site. hazardous substances during pipe laying Do not permitted to use waterways Surrounding water bodies are appeared as free adjacent to pipe laying site for the from pollution by construction waste construction related activities Do not allow to washing of equipment Surrounding water bodies are appeared as free or disposal of any type of waste, dust from pollution by equipment or any type of waste, suppression, concrete mixing, dust…etc. compacting etc. Pipe-laying Environmental Implementing approved solid waste Environmental Plan is approved by Engineer/ pollution caused management plan. Client by HDPE pipe trimming for pipe connection Conduct awareness program for pipe Safety awareness programs are carried out for pipe fitters and other workers. fitters and other workers

Littering on-site is forbidden and the Waste materials are not scattered on site premises site shall be cleared of litter at the end of each working day/night period. Pipe-laying Occupational Implementing approved Safety Safety Management Plan is approved by Engineer/ safety Management Plan Client endangered by attending work without wearing Personal Protective

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Environmental Management & Monitoring Report

Bi - Annual Report (July – December) - Year 2017

Equipment (PPE)

Conduct awareness program regularly Awareness programs are carried out for workers for the workers. Conduct promotional activities on Rewarding activities are carried out occupational safety and health. 4 Installation of service Public and Provide adequate barricades. Adequacy of existence of barricades connections occupational safety endangered by unsafe trench opening. Provide walkways and metal sheets Public complain on loss of access where required to maintain access for people and vehicles. Inform the neighbors in writing of Awareness programs are carried out for disruptive activities at least 24 hours neighboring houses beforehand.

The contractor shall immediately take Action taken for public complain the necessary remedial action on any complaint of receipt.

Public health Provide sign boards for pedestrians to Visible sign boards on project detail are displayed endangered by inform them of nature and duration of at collect locations water stagnation construction works and contact of trench. numbers for concerns/complaints A complaints register shall maintain at Public complain are recorded regularly the site office The open trench and excavated pits Trench and excavated pits are regularly reinstated shall be backfilled or covered

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Environmental Management & Monitoring Report

Bi - Annual Report (July – December) - Year 2017

Community/ The construction site adhere to speed Visible sign boards on speed limit are displayed at Occupational limit the site health endangered by dust generation Backfilled trenches shall be reinstated Surrounding area is appeared as free from dust to avoid excessive dust deposits Deploy water bowsers to water spray Water spreading exercise is frequently carried out in dry and windy condition Occupational Provide appropriate PPE for All employees are fully equipped with PPEs health construction workers. endangered by poor wastewater and sewer management system, Conduct awareness program regularly Awareness programs are carried out for the for the employees employees Improve the investigation of sewer line Not reported the sewer line or wastewater system and wastewater drainage system damages Occupational Establish extensive coordination with Not reported the UG power cable damages Accident risk CEB caused by under- ground power cable damage Improve the power lines investigation Not reported the UG power cable damages & identification system

Conduct awareness program for the Awareness program are carried out for the construction group employees 5 Installation of valves Accident risk Provide adequate warning signal and Visible sign boards and barricades on safety are and hydrants caused by poor barricades. displayed at construction locations

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Environmental Management & Monitoring Report

Bi - Annual Report (July – December) - Year 2017

warning signal arrangement during night time Provide walkways and metal sheets Public complain on loss of access where required to maintain access for people and vehicles. Contractor’s activities and movement No accident reported due to lack of safety of people will be restricted to measures designated construction areas. Lighting on the construction site shall No accident reported deu to lighting arrangement be pointed downwards and away from oncoming traffic and nearby houses

Installation of valves Occupational Apply standards shoring methods. Trench protection measures are taken as per and hydrants safety Engineer's recommendation endangered by collapsing embankment of deep valve pits. Minimize material stacking and vehicle Surface cracks or collapse signs are not appeared movement at the edges of the trench. Take immediate action when crack Rectification of crack propagation are taken place propagate on the excavated area 6 Interconnection with Public and Provide adequate barricades. Adequacy of existence of barricades existing pipelines occupational safety endangered by unsafe trench opening. Provide walkways and metal sheets Public complain on loss of access where required to maintain access for people and vehicles.

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Environmental Management & Monitoring Report

Bi - Annual Report (July – December) - Year 2017

Inform the neighbors in writing of Awareness programs are carried out for disruptive activities at least 24 hours neighboring houses beforehand. The contractor shall immediately take Action taken for public complain the necessary remedial action on any complaint of receipt. Interconnection with Community/ The construction site adhere to speed Visible sign boards on speed limit are displayed at existing pipelines Occupational limit the site health endangered by dust generation Backfilled trenches shall be reinstate to Surrounding area is appeared as free from dust avoid excessive dust deposits Deploy water bowsers to water spray Water spreading exercise is frequently carried out in dry and windy condition Interconnection with Accident risk Implement approved traffic Traffic management plan is approved by the existing pipelines caused by poor management plan. engineer/ client traffic arrangement and careless vehicle driving. Conduct awareness program for Awareness programs are carried out for drivers drivers. Employ drivers with adequate Experienced and valid license holding drivers are experience. employed 7 Disinfection Waterways Dilute disinfected water up to the Surrounding environmental sensitive areas are not pollution caused standard level before discharge to polluted as a result of discharging dissipated water by discharge of inland water bodies. disinfected water. 8 Pavement restoration Public safety Provide adequate barricades. Adequacy of existence of barricades endangered

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Environmental Management & Monitoring Report

Bi - Annual Report (July – December) - Year 2017

caused by un- safe material stock Provide and maintain required access Public complain on loss of access for pedestrian. Minimize material stocking on the Pavement are free form the construction materials pavement. Pavement restoration Accident risk Provide adequate warning signal and Adequacy of existence of barricades and warning caused by poor barricades. signal warning signal arrangement during night time Provide and maintain walkways for Public complain on loss of access the pedestrian. Contractor’s activities and movement No accident reported due to lack of safety of people will be restricted to measures designated construction areas. Pavement restoration Community The materials shall be covered by Dusty stock piles are fully covered health tarpaulin covers. endangered by dust generation/ dumping and spreading of fine aggregates Minimize material stocking on the Pavement are free form the construction materials pavement. keep & maintain the construction site Construction sites are free from construction waste clean and tidy. 9 Maintenance of waste generation Make arrangement for waste disposing. Solid waste is not scattered in camp/office/site storage areas at storage area premises providing adequate space/ number of Adequate garbage bins are provided to collect garbage bins. camp/office waste

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Environmental Management & Monitoring Report

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Maintenance of Environmental provide effective waste disposal Surrounding environment is not polluted by storage areas pollution caused arrangement. disposing solid waste by unsafe dumping of waste Deposit all waste material, to the Regulatory authority permission is obtained for approved dumping yard only. the disposal yard/s Maintenance of Occupational Use Material Safety Data Sheet No accident reported on material handling storage areas safety and health (MSDS) on safe working procedures endangered by when handling hazardous materials. poor maintenance of hazardous materials. Maintenance of waterways Any oil or lubricant substances do not Surrounding environmental sensitive areas are not storage areas pollution by poor allow to contaminated the soil or water polluted by oil or lubricant storage of oil and on-site. lubricant Runoff from storage does not allow to The water ways are not polluted by runoff from enter water ways. storage 10 Rock Blasting Occupational risk Implementing the GSMB and CEA Engineer approved control blasting guide line is of handling standard on handling of blasting strictly followed blasting materials materials. without following standard practices Rock Blasting Community Perform control rock blasting methods. Engineer approved control blasting guide line is accident risk of available performing un- controlled blasting practices Public awareness using siren when Awareness programs are carried out for general perform rock blasting. public

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Environmental Management & Monitoring Report

Bi - Annual Report (July – December) - Year 2017

Cover the blasting location using No accident or complain reported due to rock appropriate covering materials. blasting Rock Blasting waterways Any chemicals or hazardous Surrounding water bodies are appeared as free pollution caused substances do not allow to from chemicals and hazardous materials by dewatering contaminated the soil or water on-site. the blasting pits Runoff from blasting locations do not Surrounding environmental sensitive areas are not allow to enter water ways. polluted by blasting materials 11 Maintenance of labour waste generation Providing adequate number of garbage Adequate garbage bins are provided to collect camps at labour camp bins camp waste Make arrangement for garbage Solid waste is not scattered in camp/office/site disposing. premises Maintenance of labour occupational Providing adequate sanitary facilities Adequate sanitary facilities are provided for camps health to the employees employees and regularly maintained endangered by lack of sanitary facilities Well Maintain the sanitary facilities. Adequate sanitary facilities are provided for employees and regularly maintained providing canteen and recreational Adequate canteen and recreational facilities are facilities to the employees. provided for employees providing safe drinking water to the Safe drinking water is provided for employees, employees. continuously Maintenance of labour Environmental segregate the camp waste. Adequate garbage bins are provided to segregate camps pollution caused camp waste by unsafe dumping of camp waste Providing separate bins for collect the Adequate garbage bins are provided to segregate camp waste. camp waste

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Environmental Management & Monitoring Report

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Make arrangement for waste disposing. Surrounding environment is not polluted by disposing waste 12 Reinstatement work Occupational Implementing approved Safety Safety Management Plan is approved by Engineer/ safety Management Plan Client endangered by attending work without PPEs Conduct awareness program regularly Awareness programs were carried out for the workers. Conduct promotional activities on Promotional programs were carried out occupational safety and health. Reinstatement work Waterways Any chemicals or hazardous Surrounding water bodies are appeared as free pollution by substances do not allow to from chemicals and hazardous materials wash-away of contaminated the soil or water on-site. reinstatement material Do not permitted to use waterways Surrounding water bodies are appeared as free adjacent to reinstatement site for the from pollution by reinstate waste construction related activities Do not allow to washing of equipment Surrounding water bodies are appeared as free or disposal of any type of reinstatement from pollution by reinstate waste material. Reinstatement work Environmental Periodically reinstate the waste Disposal yards are regularly reinstated pollution caused disposal yard. by poor reinstatement of construction waste disposal yards Do not permitted to dispose any Hazardous material disposal plan is approved by hazardous materials to the construction Engineer/ client. waste disposal yards.

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Environmental Management & Monitoring Report

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13 Disposal Yard Waterways Implementing soil erosion control Surrounding water bodies are appeared as free maintenance pollution caused measures at the disposal yards. from pollution by disposal waste materials by soil erosion during dumping of construction waste Runoff from disposal yards do not Surrounding water bodies are appeared as free allow to enter water ways. from pollution by disposal waste materials Disposal Yard Ground water Implement leachate collection & maintenance table pollution treatment method. caused by contamination the leachate Disposal Yard public health The pits of the disposal yard shall be Weather the pits are available at disposal yard maintenance endangered by backfilled. water stagnation of disposal yard A complaints register shall maintain at Complain register was updated the site office and attend immediately in such a situation. Disposal Yard Environmental Periodically reinstate the waste Weather the disposal yard is reinstating regularly. maintenance pollution caused disposal yard. by poor reinstatement of construction waste disposal yards Do not permitted to dispose any Hazardous material disposal plan is approved by hazardous materials to the construction Engineer/ client. waste disposal yards. 14 Maintenance of Community/ The materials shall be covered by Weather the stocking material was covered by material stockpiles Occupational tarpaulin covers, when stocking. tarpaulin. health

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Environmental Management & Monitoring Report

Bi - Annual Report (July – December) - Year 2017

endangered by dust generation /spreading of fine aggregates Maintenance of waterways Select stock file locations away from Surrounding water bodies are appeared as free material stockpiles pollution caused waterways from pollution by waste materials by material wash away. Runoff from material stock do not Surrounding water bodies are appeared as free allow to enter water ways. from pollution by waste materials Maintenance of Occupational Implement approved traffic Traffic management plan is approved by the material stockpiles safety management plan. engineer/ client endangered by accident risk of machine and vehicle movement Conduct awareness program for drivers Awareness programs were carried out for drivers and employees. Employ drivers and machine operators Experienced and valid license holding drivers and with adequate experience. machine operators were employed 15 Civil construction Occupational Apply standards shoring methods. Embankment protection measures are approved work safety Engineer's recommendation endangered by collapsing embankment Minimize material stacking and vehicle Edges are free form the construction materials and movement at the edges. crack formation. Take immediate action when crack weather the action were taken propagate on the excavated area Civil construction Waterways Implementing soil erosion control Surrounding water bodies are appeared as free work pollution caused measures. from pollution by waste materials

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Environmental Management & Monitoring Report

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by soil erosion

Runoff do not allow to enter water Surrounding water bodies are appeared as free ways. from pollution by waste materials Civil construction Waterways Any chemicals or hazardous Periodically water quality parameter monitoring. work pollution caused substances do not allow to by dewatering contaminated the soil or water on-site. during construction Do not permitted to use waterways Surrounding water bodies are appeared as free adjacent to working location for the from pollution by waste materials construction related activities Do not allow to washing of equipment Surrounding water bodies are appeared as free or disposal of any type of waste, dust from pollution by waste materials suppression, concrete mixing, compacting etc.

Civil construction Accident risk Provide adequate warning signal and Adequate warning signal and barricades available. work caused by poor barricades. protection and poor warning signal arrangement Provide and maintain walkways for Public complain on loss of access the pedestrian. Contractor’s activities and movement No entry Sing boards are available of people will be restricted to designated construction areas. Civil construction Public health Provide sign boards for pedestrians to Sign boards are available. work endangered by inform them of nature and duration of water stagnation construction works and contact at construction numbers for concerns/complaints locations

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Environmental Management & Monitoring Report

Bi - Annual Report (July – December) - Year 2017

A complaints register shall maintain at Updated complain register is available at site the site office office The open/ excavated pits shall be Construction sites are free from open pits backfilled or covered 16 Precast yard Accident risk Only the specified load capacity shall Specific load capacities are display on the lifting maintenance caused by be loaded in the lifting gears and gears loading and accessories. unloading of precast item Never stay below the hanging load and Restriction zone sign boards are available. restrict access to unauthorized persons in the swing area Train and aware the workers to Awareness program were carried out. maintain correct posture when manual handling. vehicle shall be driven by authorized Valid license holding drivers were employed drivers who have valid license.

Precast yard waterways Any chemicals or hazardous Surrounding water bodies are appeared as free maintenance pollution caused substances do not allow to from pollution by waste materials by discharge of contaminated the soil or water on-site. wastewater Do not allow to discharge water Surrounding water bodies are appeared as free without treatment to the standard level. from pollution by waste materials Precast yard Environmental segregate the solid waste. Weather the waste were segregated maintenance pollution caused by unsafe dumping of solid waste. Providing separate bins for collect the Adequate bins are available solid waste.

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Environmental Management & Monitoring Report

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Make arrangement for waste disposing Waste disposal method is approved by the in a recommended manner consultant or client. 17 Site Office Waste generation Providing adequate number of garbage Adequacy of garbage bins. maintenance at office bins premises Make arrangement for garbage Waste management plan is approved by consultant disposing. or client. Site Office Public and segregate the solid waste. Weather the waste were segregated maintenance occupational health endangered by unsafe discharge of waste Providing separate bins for collect the Adequacy of garbage bins to collect the waste. solid waste. Make arrangement for waste disposing Waste management plan is approved by consultant in a recommended manner or client. Site Office Occupational conduct awareness program on office Awareness program were carried out. maintenance safety safety endangered by lack of office safety Do HIRA(Hazard Identification and weather the HIRA document is available Risk Assessment) Conduct mock drills. Mock drills are carried out. 18 DI Pipe repairing Occupational Implementing approved Safety Safety Management Plan is approved by Engineer/ work safety Management Plan Client endangered by attending work without wearing Personal Protective Equipment (PPE)

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Environmental Management & Monitoring Report

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Conduct awareness program regularly Awareness programs were carried out for workers for the workers. regularly. Conduct promotional activities on Promotional programs were carried out occupational safety and health.

DI Pipe repairing accident risk All workmen shall be provided with Comply with the regulation work caused by poor mandatory PPE, adequate ventilation & handling when illumination. repairing Only trained and experienced workmen Well experienced workers were employed shall be appointed.

Train and aware the workers to Training programs are carried out maintain correct posture when manual handling and repairing.

19 Use of Damages to Conduct HIRA Weather the HIRA document is available machinery/equipment public properties at construction work due to vibration causing health risk Machine shall be operating by well Experienced machine operators were employed experience operators. A complaints register shall maintain at Updated complain register is available at site the site office office Use of Noise causing Noisy activities restricted to the times Regular Noise level monitoring machinery/equipment public nuisance given in the project specification or at construction work general conditions of contract

Notice of particularly noisy activities Public awareness programs were carried out are given to residents/businesses adjacent to the construction site

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Machinery and vehicles are kept in Regular Machine and vehicle maintenance good working order for the duration of the project to minimize noise nuisance to neighbors

Use of Fuel/oil spills Check conditions of machinery, Regular Machine maintenance machinery/equipment causing equipment, and oil storage tanks for oil at construction work environmental spilling pollution Carry out repairs of machinery, Regular Machine maintenance equipment, and oil storage tanks to protect from oil spilling in regular intervals

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4. Environmental monitoring measures. An Environmental Survey helps to understand existing environmental conditions thus defining the focus of the environmental impact analysis and resources that need protection through appropriate and viable mitigation measures. Based on the approved EMPs, the Tranche I & II, contractors have to carry out the monitoring of selected environmental parameters such as ambient air quality, noise levels and the water quality periodically. The contractor should monitor the above parameters during the pre-construction and construction period of project.

4.1. System Rehabilitation for NRW Reduction in west part of the Colombo city (P – III). Monitoring of ambient Air Quality and Noise had been monitored at the pre - construction stage by the contractor. The observer of the event of Air quality and Noise is National Building Research Organization (NBRO). The next observations should be done during construction stage. Baseline Survey – Ambient Air Quality Monitoring Results- Package III. Table 4.1: Locations description of air quality measurements

Location Description

L1 At the premises of No 53/3, Dharmapala Mawatha, Colombo 07, close to the main road L2 At the premises of No 275, Meeraniya Street, Colombo 10, close to the main road L3 At a location of in front of Fort railway station

Table 4.2: Concentration of each parameter at the sampling location

Parameter Date of Date of Time Concentration at each location (ug/m3) Sampling Analysis Average L1 L2 L3

S02 17/10/2017 17/10/2017 8 hrs 14 12 11 N02 17/10/2017 17/10/2017 Shrs 31 22 43 CO 17/10/2017 17/10/2017 8 hrs < 1000 < 1000 < 1000

PM10 16-17/10/2017 20/10/2017 24 hrs 17 22 45 PM2.5 16-17/10/2017 20/10/2017 24 hrs 9 12 25

Pb 16-17/10/2017 20/10/2017 24 hrs <1 <1 <1

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Pre-construction survey – Noise Level Monitoring Results- Package III

Table 4.3: Description of Noise Monitoring Locations

Location Location Description No. N1 At the premises of No 53/3, Dharmapala Mawatha, Colombo 07, close to the main road At the premises of No 275, Meeraniya Street, Colombo 10, close to the main N2 road N3 At a location of in front of Fort railway station

Table 4.4: Noise Levels at each monitoring location on 17th October 2017

Measured Residual Background Noise Location Time Run time Noise Level Leq (dB) level L90 dB(A)

Morning 1 hour 56 50 Afternoon 1 hour 54 47 N1 Evening 1 hour 53 44 Night 1 hour 52 52 Morning 1 hour 56 51 Afternoon I hour 65 54 N2 Evening 1 hour 58 47 Night 1 hour 51 51 Morning 1 hour 52 49 Afternoon 1 hour 60 54 N3 Evening 1 hour 69 55 Night I hour•.. 59 59 Where;  Measured Noise Level (Leq) :- The equivalent continuous baseline noise level over the measuring period.  Background Noise Level (Leq):- The equivalent continuous baseline noise level over the 90% of the measuring period.

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Maximum Permissible Noise Levels

The Greater Colombo water and waste-water improvement and investment project - system rehabilitation for NRW reduction in west part of Colombo located within the Colombo municipal council area. The maximum permissible noise levels at the boundary of the site stipulated under the Extraordinary Gazette No. 924/12- Thursday, May 23, 1996 by the Central Environmental Authority of Sri Lanka for thç construction activities are as follows

 75 dB(A) during the Day time.

50 dB(A) during Night time

4.2. Colombo East Area System Rehabilitation – Package II Monitoring of ambient Air quality and Noise had been monitored at the construction stage by the contractor. The observer of the event of Air quality and Noise is National Building Research Organization (NBRO). The final observations should be done during construction stage

The observed results are given in Tables Table 4.5; Noise Monitoring Location Description– Package II

Location Description Location No. GPS Coordinates

06 56.573' N At in front of the Laugfs filling centre — Bodiya 0 N1 079 52.701' E Mawatha

06 55.303' N At a place close to the car park, Deans Road, 0790 51.882' E Colombo N2 10

06 54.056' N At a place close to the children's park, in front of the 0790 52.718' E temple, Gajaba Road, Colombo 05 N3

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Table 4.6; Construction stage Survey – Noise Level Monitoring Results – Package II

Run time Measured Noise Residual noise Corrected Location Time (min) Level Leq (dB) level Leq dB(A) Noise Level

Day 15 78 76 * N1 Night 05 71 71 *

Day 15 74 70 72 N2 Night 05 62 61 *

Day 15 61 55 60 N3 Night 05 56 56 * Where; • Measured Noise Level (Leq):- The equivalent continuous noise level when the construction activities of the project are going overa the period of measurement. • Residual Noise Level (Leq):- The equivalent continuous noise levels measured during the baseline noise survey. • Corrected Noise Level: - The continuous noise level generated due to the construction activities of the project, calculated in accordance to BS: 4142; 1997. *Corrected noise levels cannot be estimated in atgordance to BS: 4142; 1997 since the measured noise levels and residual noise levels were very closed to each other.

Table 4.7; Construction stage Surveys – Ambient air quality sampling location description – Package II

Location No. GPS Coordinates Location Description

06 56.50. N At the premises ofKSP Electricals, No. 765/418c, AQI 0790 52.676' E Bodiraja Mawatha, Colombo 10 06 55.301' N AQ2 Af the car park of Booker Hall, Colombo 08 0790 5L,882' E 06 54.033' N At the residential house premises of No. 18, Gajaba AQ3 0790 52.719' E Road, Colombo 05

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Table 4.8: Concentration of each parameter at each sampling location

Concentration at each Location (pg/ m ) Date of Date of Time Location Sampling Analysis average SO2 PM2.5 N02 PM10 CO

15/11/2017 15/11/2017 8 hrs <1000 AQ1 14- 17/11/2017 24 hrs 15/11/2017 14 91 88 44 15/11/2017 15/11/2017 <1000 8 hrs AQ2 14- 17/11/2017 24 hrs 15/11/2017 24 55 46 25 15/11/2017 15/11/2017 8 hrs <1000 AQ3 14- 17/11/2017 24 hrs 15/11/2017 11 30 59 32

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Bi - Annual Report (July – December) - Year 2017 5. Status of environmental licenses and permits for trial trench and pipe laying work All contractors were instructed to obtain all necessary approvals and licenses such as Environmental Protection License (EPL). Permits were obtained from following organizations by all Packages for construction activities

 Geological Survey & Mines Bureau  Road Development Authority  Colombo Municipal Council  Sri Lanka Land Reclamation and Development Corporation(SLLRDC)  Sri Lanka Police  Sri Lanka Telecom  Ceylon Electricity Board Before starting the Excavation Work at a particular road it should get the approval from the CMC, for a Limited period of time.

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Environmental Management & Monitoring Report

Bi - Annual Report (July – December) - Year 2017 6. Public complaints Grievance Redress Mechanism (GRM) was established on 12th December 2017 for package 3 and 27th December 2017 for package 4 to receive evaluates and facilitate the resolution of AP’s concerns, complaints and grievances about the social and environmental performance at the level of the project.

The Grievance Redress Committee (GRC) will have the following as members: Divisional Secretary as Chairperson, GCWWMIIP Project Director, PMU Social Development/Safeguards Officer as the Convener, Project Public Relations Officer, Director of the project NGO, the Area Engineer, Maigawatta (NWSDB), representatives of APs, Community Based Organizations (CBOs), and eminent citizens.

Grievance redress/ suggestion forms, complaints / suggestion boxes and complain register was placed at following four locations.

1. Divisional Secretary Division (DSD)s –Colombo & Thimbirigasya

2. Project Management Unit -Wellawatta

3. NWSDB, Area Engineer’s Office

4. Contractor’s office

Contractor is maintaining a public complaint register. However, no written public complaint has been received during the reporting period although minor complains were received due to dust emissions, damages of road & fence and reinstatement of road, constructor was rectified such damages and control the duct emission (Annexes 2)

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Bi - Annual Report (July – December) - Year 2017 7. Conclusion and Recommendations. The project will benefit the general public by contributing to the long-term improvement of water supply system and community livability in Colombo. The potential adverse environmental impacts are mainly related to the construction period, which can be minimized by the adopting mitigating measures and environmentally friendly construction practices.

The ongoing works of sub projects did not make vital impacts to the surrounding environment. However, observations revealed that there were some impacts due to dust emission and delay of reinstatement activities. It was exposed that construction safety and the occupational safety activities which are poor in few locations of the program. The contractors of Package I & II should further improve their safety culture/occupational safety and construction safety.

The ongoing construction works may have caused traffic congestion due to high volume of traffic and narrow condition of existing roads, therefore a good traffic control plan must be implemented throughout the working period.

The project’s Grievance Redresses Mechanism was established. No significant issues were observed during the reporting period. The contractors should give attention to reduce public nuisances caused by the construction works, especially they involved for rectification activities on utilities, house damages and reinstatement activities too.

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Annexes 1.

Photographic records

Employee Training and Awareness Programs conducted for accident prevention and mitigate the environmental negative impact.

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Employee Training and Awareness Programs conducted for accident prevention and mitigate the environmental negative impact cont…

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Employee Training and Awareness Programs conducted for accident prevention and mitigate the environmental negative impact cont…

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Public Awareness Programs conducted by the project.

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Traffic Management Activities.

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Dust control measures and mosquito breading control measures.

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Monitoring the Environmental Safeguard measures.

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Public awareness programs.

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Annexes 2. - Summary of public complaint register (P 2)

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