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  Experiences : Construction Supervision Service
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The Consultant's Project Experience in the Construction Supervision Service
No. Project Name Project Area Project Description Project Duration Client Project Cost (MB)
Wastewater Collection and Treatment Systems
1. Construction Supervision for Eastern Industrial Estate  (Map Ta Phut) Wastewater Collection and Treatment Systems Tambon Mab Ta Phut, Amphoe Muang, Rayong,
project area approx.1,500 rais (240 ha).
  • The construction supervision services provided include equipment approvals, shop drawing reviews, supervising, inspecting and measuring construction, inspecting materials and equipment delivered to the site, witnessing tests of materials and equipment, supervising plant commissioning, maintaining records of construction progress and of the inspections and tests. PTC also coordinated between the owner and contractors as well as making recommendations to the owner and contractors concerning the operation and maintenance training.
  • The details of facilities supervised are as follows :
  • Wastewater Collection System consists of 20 km of PVC wastewater collection pipes measuring up to 400 mm in diameter conveying wastewater generated from each plot to the central wastewater treatment plant.
Wastewater Treatment Plant, the plant is the activated sludge system with a capacity of 12,000 cu.m./day, comprising primary treatment system and secondary treatment system. 		Oct.1992 to        Dec.1994 Hemaraj Land and Development Public Co., Ltd. 191.6
2. Supervision and Project Management of The Contract    for Rattanakosin Wastewater Treatment Plant Rattanakosin Area, Bangkok, project area approx. 4.14 km2
  • The construction supervision services provided include reviewing shop drawings, materials and equipment approval, supervising, inspecting and measuring construction, inspecting materials and equipment delivered on site, witnessing tests of materials and equipment. The Construction of wastewater interceptors required special construction techniques due to their locations underneath the existing canals. PTC also coordinated all parties involved such as the BMA, main contractor, subcontractors and other governmental agencies such as Rattanakosin Island Cultural Committee. and supervising contractors concerning the operation and maintenance training.
  • The project comprises of the construction of wastewater collection system conveying wastewater generated in the Rattanakosin Area to the new central wastewater treatment plant at Ban Parn Thom. Rattanakosin area covers the area of approximately 4.14 sq.km in which many historical sites such as the Grand Palace are located.
  • The details of facilities supervised are as follows :
  • Wastewater Collection System ;
The system consists of combined sewer overflow structures (CSO) and interceptor pipelines. Wastewater from the existing sewers are collected to the inceptors via CSO’s and conveyed to the wastewater treatment plant. The interceptors are capable of conveying up to 5 times of average flow rate. The total interceptor length is approximately 14 km with pipe diameter measuring up to 1,500 mm.
  • Wastewater Treatment Plant ;
A central wastewater treatment is constructed on a plot of land of approximately 6,720 sq.m. Due to limited available space, PTC had recommended and designed a 4-storeyed treatment plant, using two-stage activated sludge system. The plant was designed for an average flow of 40,000 cu.m./d. It is capable of nitrogen and phosphorus removal and included a sludge disposal system. 		Sept.1993 to May 2000 Bangkok Metropolitan Administration 862.0
The Consultant's Project Experience in the Construction Supervision Service (Cont.)
No. Project Name Project Area Project Description Project Duration Client Project Cost (MB)
3. Consultancy services for Supervision and Project Management of The Contract for  Turnkey Construction
for Bangkok Wastewater
Project – Stage I 		Dusit, Phra Nakhon,                Pom Prap  Sattru Phai, Samphanthawong,                Phaya Thai, Pathumwan, Ratchathewi and Huai Khwang District, Bangkok, project area approx. 38 km2
  • As part of the association with Dorsch Consult Ingenieurgesellschaft mbH, Consulting Engineers Salzgitter GmbH, Tesco Co., Ltd. and Systems Engineering Co., Ltd., in the capacity of BMA’s construction supervisor, PTC was involved in reviewing the Project Contractor; NOSS Consortium’s design for interceptor pipelines and wastewater treatment plant, supervising the construction of interceptors and Treatment plant. Parts of the main interceptors were constructed underneath the canals, which required special construction techniques.
  • The project comprises of wastewater collection system, which consists of sewage overflow chambers and interceptor pipelines, and a central wastewater treatment plant, which is capable of treating wastewater at the average flowrate of 350,000 cu.m/day and a peak flowrate of 450,000 cu.m/day. The plant is located at the BMA compound in Din Daeng. The treatment system used is activated sludge with nutrient removal, constructed in multi-story style to maximize the limited available space.
 30 Sept.1993 to 1998 Bangkok Metropolitan Administration 6,382.8
4. Supervision of Turnkey Construction of Sewerage and                                    Wastewater Treatment Plant for Phuket Municipality Phuket Municipality, Phuket
project area approx. 12.0 km2
  • The construction supervision services provided include reviewing shop drawings, materials and equipment approval, supervising, inspecting and measuring construction, inspecting materials and equipment delivered on site, witnessing tests of materials and equipment, checking and certifying all payment claims, clarifying and interpreting the contract, monitoring construction schedule and progress, supervising plant commissioning, and operation and maintenance staff training. PTC undertake coordination among all parties involved such as the PWD, main contractor, subcontractors, Municipality and other governmental agencies.
  • The project components are the construction of 1.1 km of drainage pipes, 8.6 km of intercepting sewers and a wastewater treatment plant which is an oxidation ditch process with treatment capacity of 12,000 cu.m./day.
 10 Aug.1994 to 26 Mar.1997 Public Works Department 390.0
5. Construction Supervision for Songkhla Municipality
Drainage and Wastewater Treatment Systems Project		 Songkhla Municipality, Songkhla
project area approx. 6.7 km2 		The construction supervision services provided include reviewing shop drawings, materials and equipment approval, supervising, inspecting and measuring construction, inspecting materials and equipment delivered on site, witnessing tests of materials and equipment, checking and certifying all payment claims, supervising plant commissioning and turning-over of the systems to the Municipality. PTC also coordinated among all parties involved such as the PWD, main contractor, subcontractors, Municipality and other governmental agencies.
  • The project comprised the construction of drainage and intercepting sewers and a central wastewater treatment plant that used aerated lagoon process with the treatment capacity of 21,900 cu.m./day.
1 Nov.1995 to Aug.2001 Public Works Department 299.7
6. Construction Supervision of Pattanee Municipality
Drainage, Wastewater Collection and Treatment Systems Project		 Pattanee Municipality, Pattanee
project area approx. 4.8 km2 		The construction supervision services provided include reviewing shop drawings, materials and equipment approval, supervising, inspecting and measuring construction, inspecting materials and equipment delivered on site, witnessing tests of materials and equipment, checking and certifying all payment claims, supervising plant commissioning and turning-over of the systems to the Municipality. PTC also coordinated among all parties involved such as the PWD, main contractor, subcontractors, Municipality and other governmental agencies.
  • The project comprised the construction of drainage and intercepting sewers and a central wastewater treatment plant that used wastewater stabilization pond process with the treatment capacity of 27,000 cu.m./day.
 1 Nov.1995 to July.2001 Public Works Department 348.0
The Consultant's Project Experience in the Construction Supervision Service (Cont.)
No. Project Name Project Area Project Description Project Duration Client Project Cost (MB)
7. Construction Supervision for Chonburi Municipality Drainage and Wastewater Treatment Systems Project Chonburi Municipality, Bangsai Municipality Bansuan Municipality and Samet Subdistrict Administrative Organization, Chonburi,
project area approx. 14.5 km2 		The construction supervision services provide in this contract comprise reviewing shop drawings, materials and equipment approval, supervising, inspecting and measuring construction, inspecting materials and equipment delivered on site, witnessing tests of materials and equipment, checking and certifying all payment claims, clarifying and interpreting the contract, monitoring construction schedule and progress, supervising plant commissioning, and operation and maintenance staff training. PTC undertakes coordination among all parties involved such as the PWD, main contractor, subcontractors, Municipality and other governmental agencies.
  • The construction consists of the following components :
  • Drainage system : 3 km of drainage pipes with diameter measuring up to 1,200 mm and 1.2 km of box culverts ranging up to 2,000 x 2,000 mm size.
  • Wastewater collection system : 5 km of intercepting pipes measuring up to 1,750 mm, sewage lifting stations and combined sewage overflow structures.
  • Wastewater treatment plant: : a two stage activated sludge wastewater treatment plant with a capacity of 22,000 cu.m./day
2 Mar.1998 to 15 June 2001 Public Works Department 565.0
8. Construction Supervision of Nakhon Ratchasima Municipality Drainage, Wastewater Collection and Treatment Systems Improvement Project Nakhon Ratchasima Municipality,                      Nakhon Ratchasima
project area approx. 37.5 km2
  • The construction supervision services provided include reviewing shop drawings, materials and equipment approval, supervising, inspecting and measuring construction, inspecting materials and equipment delivered on site, witnessing tests of materials and equipment, checking and certifying all payment claims, clarifying and interpreting the contract, monitoring construction schedule and progress, supervising plant commissioning, and operation and maintenance staff training. PTC undertakes coordination among all parties involved such as the Municipality, main contractor, subcontractors and other governmental agencies. PTC also carries out the wastewater tariff study and setting up of tariff structure as well as organization study.
  • The construction consists of the following components :
Drainage and wastewater collection systems : drainage and wastewater collection sewers comprising 29 km of reinforced concrete pipes and box culverts ranging from pipe diameter 1,000 mm up to 2,500 x 2,500 mm box culvert, 3 overflow connection and sewage lift stations
  • Wastewater treatment plant: :  wastewater stabilization pond, capacity of 45,000 cu.m./day.
 15 Jan.1998 to 18 Mar.2002 Nakhon Ratchasima Municipality 580.0
9. Construction Management and Construction Supervision of the Turnkey Construction of Bangkok Wastewater Project Stage 1 (Remaining Works Part 4) Dusit, Phra Nakhon, Pom Prap  Sattru Phai, Samphanthawong, Phaya Thai, Pathumwan, Ratchathewi and Huai Khwang District, Bangkok, project area approx. 38 km2 Supervision and project management of the contract for construction of remaining incomplete works and supervision the Contractor’s 1st  year of Operation and Maintenance of Bangkok Wastewater Project- stage-1.The Services shall comprise the supervision and project management of the Project and are described in more detail below :
  • Approval of Alternative Designs (if any)  Program of Work
  • The Consultant shall examine all drawings, reports and proposals submitted by the contractor.
  • The Consultant shall report to the Client their findings in respect of all Alternative Designs before communication approval or disapproval to the Contractor.
  • The Consultants shall examine and approve the Contractor’s program of work as submitted by the Contractor from time to time.
  • Supervising Construction
The Consultant shall be responsible for the administration and supervision of the Project during the construction and maintenance period and shall in this connection undertake the following duties :
  • lssue to the Contractor such orders and instructions,  and give such professional opinions as are necessary for the execution of the Project in accordance with the Construction Contract.
 1 Sept.2003 to 30 Sept.2005 Bangkok Metropolitan Administration 419.9
The Consultant's Project Experience in the Construction Supervision Service (Cont.)
No. Project Name Project Area Project Description Project Duration Client Project Cost (MB)
     
  • Measure the progress of the execution of the Project and prepare and issue interim and final certificates of payment, such certificates to be in a form approved by the Client.
  • Submit to the Client weekly and monthly reports on the progress of the Project.
Advise the Client on the necessity for the inspection and testing of materials and plant supplied for incorporation in the Project.
  • Supervise inspection and testing (including acceptance tests) during and after installation of all electrical and mechanical materials, machinery and plant supplied for incorporation in the Project.
  • Prepare and submit to the Client at quarterly intervals, or more frequently as required, a review of the estimated final cost of the Project.
  • Keep in Bangkok full and proper records of the progress of the Project and forward to the Client on the completion of the Project a maintenance manual prepared by the Contractor.
  • Assist in settling any disputed or differences which any arise between the Client and the Contractor.
  • Supervise the Contractor’s 1st  year of Operation and Maintenance
      
10. Construction Supervision of Wastewater Collection and Treatment Systems for Nakhon Ratchasima Municipality (Phase 2) Project Nakhon Ratchasima The services provided in this contract comprise:
  • Review of the detailed design for Phase 2 Works and undertake revisions where necessary to suit current conditions.
  • Undertake the construction supervision works which include reviewing shop drawings, issuing revisions where necessary, materials and equipment approval, supervising, inspecting and measuring construction, inspecting materials and equipment delivered on site, witnessing tests of materials and equipment, checking and certifying all payment claims, clarifying and interpreting the contract, monitoring construction schedule and progress, supervising plant commissioning, and operation and maintenance staff training. PTC undertook coordination among all parties involved such as the Municipality, main contractor, subcontractors and other governmental agencies.
  • Undertake the revision of the previous wastewater tariff study to reflect the actual operation and maintenance costs for the constructed Phase 1 of wastewater collection and wastewater treatment systems. As well as proposing an appropriate and public approved tariff collection system, and organization.
29 Nov.2005 to 9 Aug.  2008 Nakhon Ratchasima 738.66
Wastewater Treatment Systems
11. Construction Supervision of Wastewater Treatment Plant              for Chonburi Industrial Estate         (Bo Win) Tambon Bo Win,               Amphoe Sriracha, Chonburi The services provided include :
  • construction supervision and starting up of the wastewater treatment plant:;
Wastewater treatment plant is activated sludge system with a capacity of 8,400 cu.m./day. Primary treatment system consists of automatic screen, pumping station, grit chamber, equalization tank and neutralization tank. Secondary  treatment system consists of aeration tank, sedimentation tank and   chlorine contact tank. Sludge treatment system consists of sludge thickener and sludge dewatering system.		 Sept.1990 to May 1992 Hemaraj Land and Development Public Co., Ltd. 95.6
12. Construction  Supervision of  Wastewater Treatment Plant (2nd Phase) for Eastern Hammaraj Industrial Estate  (Map Ta Phut), Rayong. Eastern Hammaraj Industrial Estate  (Map Ta Phut), Rayong. Supervision, inspection and consulting for wastewater treatment plant with a capacity of 30,000  cu.m./day 15 Oct.2003 to 1 Nov.2005 Eastern Industrial Estate Co.,Ltd. 77.7
The Consultant's Project Experience in the Construction Supervision Service (Cont.)
No. Project Name Project Area Project Description Project Duration Client Project Cost (MB)
13. Construction Supervision Consultant Services for Main Transformer Station No. 2 and Wastewater Treatment Plant Second Stream for the Second Bangkok International Airport Project Suvarnabhumi Airport,   Sumut Prakan
  • WWTP Second Stream is designed to have the treatment capacity of 9,000 m3/day average dry weather flow (DWF), with a hydraulic capacity provided for up to 3 DWF. The combined capacity of WWTP First and Second Streams is 18,000 m3/day which is sufficient for serving the airport operation up to 60 MAP capacity. The estimated average daily wastewater flows for 45 MAP and 60 MAP are 12,066 m3/day and 16,180 m3/day, respectively.
  • The construction of WWTP Second Stream can be classified into two major works : the construction of WWTP Second Stream treatment processes and related facilities, and the modifications work for WWTP First Stream.
  • The construction works to be undertaken under the WWTP Second Stream Construction Contract will consist of the following works:
  • Construction of WWTP Second Stream Facilities
  • Modifications of WWTP First Stream
Extension of site services, internal roads, and connection to existing roads and services within the plant, including the construction of a car park shelter.		 13 Jun.2005 to 12 Oct.2006 The Airports of Thailand Public Company Limited 205.14
14. Construction  Supervision of  Wastewater Treatment Plant (3nd Phase) for Eastern Hammaraj Industrial Estate  (Map Ta Phut), Rayong. Eastern Hammaraj Industrial Estate  (Map Ta Phut), Rayong. Supervision, inspection and consulting for wastewater treatment plant with a capacity of 60,000  cu.m./day 29 Nov.2010 to 8 Aug.2012 Eastern Industrial Estate Co.,Ltd. 128.0
Infrastructure System
15. Construction  Supervision of  Infrastructure System for Kabinburi Industrial Zone,  Prachin Buri. Kabinburi Industrial Zone, Amphoe Kabinburi, Prachinburi
project area approx. 2,400 rais. (380 ha).
  • The scope of construction supervision services included equipment approvals, shop drawing reviews, supervising, inspecting and measuring construction, inspecting materials and equipment delivered to the site, witnessing tests of materials and equipment, supervising plant commissioning, maintaining records of construction progress and of the inspections and tests. PTC also coordinated between the owner and contractors as well as making recommendations to the owner and contractors concerning the operation and maintenance training.
  • The details of facilities supervised are as follows:
  • Surface water treatment plant, with a capacity of 21,000 cu.m./day, consists of raw water pumping station, flocculation tank, sedimentation tank, sand filters, clear well and a pump station, and sludge lagoons.
  • Water distribution system, consists of an elevated tank and a distribution network with the total pipe length of 40 km.
  • Wastewater collection system, consists of GRP pipe, 43 km. long and 7 lift stations.
  • Drainage system consists of RC pipe, 20 km. long, and RC ditch, 26 km long.
  • An aerated lagoon wastewater treatment plant, with a capacity of 20,000 cu.m./day at  BOD concentration of 500 mg/l.
Flood protection system, consists of dike and drainage ditch connected to public canal. 		1 Mar.1991 to 30 Jan.1995 Kabinburi Industrial Zone Co., Ltd. 450.0
16. Construction  Supervision of Infrastructure System for Carlberg Brewery (Thailand) Co., Ltd. Amphoe Sena,                        Phra Nakhon Sri Ayuttaya Details of the construction supervision are as follows:
  • Water treatment system with a capacity of 100 and 400 cu.m./hr.
  • Flood protection system
  • Wastewater collection  system
  • Fire protection system
 Nov.1992 to Jan.1994 Carlberg Brewery (Thailand) Co., Ltd. 50.0
The Consultant's Project Experience in the Construction Supervision Service (Cont.)
No. Project Name Project Area Project Description Project Duration Client Project Cost (MB)
Water Treatment System
17. Detailed Design of Water Supply System for Thai Petrochemical Industry Public Co.,Ltd. Amphoe Muang, Rayong
  • Details of the construction supervision are as follows:
  • Raw water pumping system consists of a raw water pump station extracting raw water from Ban Khai River, and the transmission pipe
  • Water treatment plant with a capacity of 1,000 cu.m./day including a clearwell and a transmission pump station
  • Treated water transmission system consists of a treated water transmission pipe approximately 20 km long
  • Water distribution system
Factory fire fighting system 		Feb.1992 to Aug.1993 Thai Petrochemical Industry Public Co.,Ltd. 200.0
 
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a complete range of consulting services as summarized below

Reconnaissance Survey.
Field Investigations.
Study and Planning.
Engineering and Design.
Supervision, Engineering Advice and Construction Management.
Training and Guidance.
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