The Company devised a clear policy and structure for safety management that complies with the law, by incorporating the Occupational Health and Safety Assessment Series (OHSAS18001) as a basic guideline to improve safety standards in work operations for employees.
1. The Company aims to execute the quality, environmental, occupational health and safety policy, with an emphasis of encouraging participation from staff members for continuous improvement as follows:
  • Produce tap water with the level of quality that satisfies customers.
  • Create maximum satisfaction for direct and indirect customers.
  • Improve and develop knowledge, competency, skills and expertise for staff members on a continuous basis to foster an awareness on quality, environment, occupational health and safety.
  • Comply with the law and regulations related to environmental problems and work safety.
  • Prevent pollution caused by the Company’s or stakeholders’ activities that might impact the environment, as well as encourage effective use of energy and resources.
  • Prevent and reduce accidents, danger and illnesses for staff members and stakeholders caused by performing the work for the Company.
  • Be prepared for emergency incidents and ensure that those incidents will not impact the Company’s human resource and assets, both internally and externally.
2. Occupational Health and Safety Goal
  • To become an injury and illness free organization.
3. Occupational Health and Safety Strategy
  • Create standard on occupational health and safety for all levels of staff members, with the executives as the leaders of the initiative.
  • Uplift potential and awareness of work safety.
  • Engage participation of staff members and business partners to improve and solve issues related to safety.
The Company is aware of the values of natural resources and thus places emphasis on environmental impact caused by the Company’s business operations both directly and indirectly by incorporating the environmental management system ISO 14001 and environment-friendly production process ‘Zero Discharge’, using sludge derived from water production to extract water and remove the sludge residue. Water derived from sludge extraction will then be used in the production process once again, meaning that no water will be released back into the raw water source throughout the whole production process. Furthermore, the Company advocates the Kaizen activity in order to improve business processes that have impact on the environment, with clear identification of goals and KPIs, to minimize risks and impact on the environment and all groups of stakeholders.
Quantity of Water Utilized Categorized by Sources
The Company produces and distributes tap water for the Provincial Waterworks Authority in 3 provinces; Nakhonpathom , Samutsakorn and Pathumthani, with Banglen Water Plant, Nakhonpathom and Pathumthani Water Treatment Plant, Pathumthani as production plants that utilize nearby surface water sources as raw material for production, i.e. Tha Chin River and Chao Phraya River. The amount of water utilized from the aforementioned water sources is displayed in the table below.
Comparison of water utilization categorized by sources over the past 2 years
Source 2015 2016 2017
Tha Chin River 143,926,595 143,202,704 155,641,821
Chao Phraya River 136,580,544 141,611,638 147,966,769
Quantity of Reused Water
The Company designs the water production system that enables effective reuse of water, under the principle ‘Water Discharge Minimization’, which does not release extra water to waste, either the water extracted from sedimentation process or the water derived from the wash water tank. The system has been designed to collect sludge from production process to separate water from sludge to reuse again in the production process, with the following steps:
1. Sludge Balancing Tank receives sludge derived from the clarifier. Sludge in this tank will then be pumped to the sludge thickener tank.
2. Wash Water Tank receives water and sludge derived from the back wash of the clarifying system. From this, clear water will be separated from sludge and will be pumped back into the water production system to use again for maximum utilization, known as the ‘Recovery Water’. The thicker sludge will be pumped into the sludge thickener tank.
3. Sludge Dewatering is the last process in extracting water from the sludge in order to make it as dry as possible. It is also the process where the recovery water will be reused in the production process.
In 2017, the amount of water reused is shown in the table below.
Comparison of water utilization categorized by sources over the past 3 years
Source 2015 2016 2017
Banglen Water Treatment Plant 2,376,339 2,374,004 2,321,816
Pathumthani Water Treatment Plant 4,232,918 7,676,329 8,138,172
The key water production process the Company comprises of pumping raw water, adding chemical, sedimentation, filtration, sterilization and discharge.
With this, it can be seen that the waste borne from production is the sludge derived from the sedimentation and passing through the wash water tank. The Company ensures that waste monitoring and disposal is being executed on a systematic manner, as shown in the diagram below.
Comparison of the amount of sludge
Item 2015 2016 2017
Banglen Water Treatment Plant 19,750 11,040 7,627
Pathumthani Water Treatment Plant 33,300 23,492 22,552
The Company is aware of the potential impact the environment, with a consideration of greenhouse gas borne from tap water production process all the way to water distribution to consumers, inclusive of Banglen Water Treatment Plant, Nakhonpathom, and Pathumthani Water Production Plant, Pathumthani
The Company incorporated the electric power used in the production and distribution processes, as well as the number of water users in the area to determine the amount of greenhouse gas emitted into the atmosphere. The amount of energy utilized in the production process in 2016 for Banglen Water Production Plant is 116,607,766 kWh and that of Pathumthani Water Production Plant is 62,512,298 kWh. With this information, the projected amount of greenhouse gas emission from water production process is displayed in the table below.
Item Amount of Greenhouse Gas Emission (kg.Co2)
2015 2016 2017
Banglen Water Treatment Plant 68,081,943 73,083,056 61,836,873
Pathumthani Water Treatment Plant 38,860,296 39,723,274 42,112,546
The Company has executed greenhouse gas minimization campaign to help reduce the impact of greenhouse gas emission caused by the Company’s activities through “1 Million Seedlings for Upstream Reforestation” in collaboration with the Department of National Parks, Wildlife and Plant Conservation for a period of 5 years (2011-2015), with the objective of reviving deteriorated upstream forests in level 1 of Thong Pha Phum National Park, E-Tong Village, M.1, Pilok Sub-District, Thong Pha Phum District, Kanchanaburi, over the area of 5,000 rais, as this is the upstream forest where Mae Khlong River is originated from. Mae Khlong River is considered one of the rivers that meet with Tha Chin River from where raw water is used by the Company for water production. From the survey conducted in 2016, the survival rate of trees is 83% or approximately 830,000 trees. With this, it has been projected that the amount of greenhouse gas can be reduced by about 7,470,000 kg.Co2 per year (referenced by the Department of Public Works and Town & Country Planning, www.dpt.go.th).
Environmental Protection and Revival
The Company has continuously been well aware of attention and care needed for the environment, with an active role in managing and solving water problems that are getting more and more critical. It can be said that the Company is both the producer and consumer all at the same time, in alignment of the Company’s sustainable development strategy, with the goal to comprehensively manage water utilization; raw water management, tap water production and wastewater treatment. As the tap water producer, the Zero Discharge approach, which is environment-friendly, has been incorporated, and as a consumer, we have displayed an act of responsibility by executing the “1 Million Seedlings for Upstream Reforestation” campaign, to plant and revive upstream forests to increase the amount of ground water, and “Khlong Kru Water Quality Revival and Treatment” campaign, to encourage participation in solving the wastewater problem of the community. On these occasions, employees have shared their knowledge and competency as the water producer to educate and inspect the quality of water for the community, as well as designed different activities to encourage involvement and foster an awareness of water quality improvement, and water conservation in terms of quality and quantity.
Environmental Conservation “Upstream”
The “1 Million Seedlings for Upstream Reforestation” involves hiring local people to engage in a reforestation activity to restore deteriorated forests in Thong Pha Phum National Park area, Thong Pha Phum District, Kanchanaburi for 5,000 rais from 2011-2017. The project will span over a period of 5 years and we will be planting 1,000 rais per year; 200 trees per rai. The forest maintenance will continue for another 2 years before giving to the Department of National Parks, Wildlife and Plant Conservation to take care for another 7 years, with the Audit Committee for contractors, Inspection Committee and the Company’s volunteering employees participating in the activity by sharing knowledge and understanding, and holding activities to encourage participation of the community. In 2016, the forest maintenance activity was carried out to care for trees planted in 2014 and 2015 for 2,000 rais.
Environmental Conservation “Midstream”
The Company incorporated the environment-friendly production process ‘Zero Discharge’ system, whereby waste from tap water production; sludge that has been extracted in the sedimentation and filtration processes will be transferred to the sediment discharge process by extracting water and sludge residue out of the production process. Water extracted from sedimentation process will be reused in the production process, meaning that no extra amount of water is released into raw water sources throughout the entire production.
Environmental Conservation “Downstream”
The “Khlong Kru Water Quality Revival and Treatment” campaign is a collaboration among all groups of stakeholders in solving wastewater problem in Khlong Kru, Muang District, Samutsaskorn. The problem has been persistent for a long time and impacted the community members’ quality of lives. The Company will be sponsoring budgets, execution plan and collaborating with stakeholders. In 2016, the Company collected water sample in Khlong Kru and surveyed opinions of community members dwelling in the area in order to analyze the data obtained and identify the quality of water in Khlong Kru to be able to find solutions and develop the plan that is suitable for the expectation of the community.