06

Sustainability Performance

ECONOMIC

SOCIAL

Employee Engagement Programs

We create a workplace that is fun, collaborative, and meaningful that will enhance organizational engagement.

ENVIRONMENTAL

WATER

It is essential to have sustainable water sources to meet the water requirements of our customers. We conduct surface and groundwater studies to determine the long-term viability of our water sources. We manage our water sources and watersheds to maintain and improve its quality and forest cover.

Eighty-seven percent of our raw water was sourced from surface water while the rest was abstracted from the aquifer. There was a four percent increase in raw water abstracted due to new water service coverage areas, increase in billed connections and billed volume.

MATERIALS

We implement innovation, continuous improvement, and resource efficiency initiatives to optimize the use of our raw materials. Initiatives such as automation, Just in Time, NRW reduction and optimization of processes contribute to the minimization of raw materials used and wastes produced.

Disclosure 301-1
Water Supply Chemical Consumption

Water treatment facilities across the Philippine operations used a total of 7,758 tons of non-renewable chemicals. There was a 10 percent increase due to the increase in water production and increase in the dosing of coagulants due to higher turbidity during typhoons and heavy rains. Optimization of chemical dosing was implemented in Estate Water facilities to improve chemical efficiency.

Used Water Chemical Consumption
Used water treatment operations consumed a total of 1,506 tons of non-renewable chemicals. Across the enterprise, there was 42 percent decrease in consumption due to improved quality of polymers in the Manila Concession, the shifting from chlorination to ultraviolet disinfection system in the Balabag STP in Boraca Water, and the optimization of chemical dosing and shift to granulated chlorine in Estate Water facilities.

ENERGY

Energy is one of our highest operating expenses since water and used water facilities are power intensive. Manila Concession facilities implement the Energy Management System with 10 of the largest-energy consuming facilities certified to ISO 50001. All companies have their respective energy efficiency and innovations programs such as network and pressure management, automation, VFD optimization, regular preventive maintenance, replacement of old equipment, refleeting, and shift to LED lights.

Energy consumed within the Company includes electricity and fuel consumption of vehicles, generator sets, and other equipment. There was an 11 percent increase in electricity consumption brought about by the expansion of service areas and increase in billed volume and used water treated. Fuel consumption was reduced due to installation of permanent power from the grid for the five new wells of Clark Water in 2017. The same wells were operating using generator sets from April 2016 to January 2017.

Disclosure 302-3

ENERGY

Continuous improvements are implemented across Manila Water operations to improve energy efficiency. In 2017, the company-wide water supply energy intensity regression was due to the provision of higher pressure in some areas of the Manila Concession, expansion of service coverage to more areas in Laguna Water and the requirement of longer treatment times for turbid raw water during heavy rains in Cebu and Boracay. The slight deterioration in used water energy intensity was due to the addition of used water treatment facilities that are not yet operating at full capacity.

EMISSIONS

Greenhouse gas (GHG) emissions result from the use of electricity and fuel in its operations. We voluntarily monitor GHG as a part of our Climate Change Policy to reduce its impact on the environment, and help in climate change mitigation. A significant fraction of carbon emissions was offset by the trees planted in Ipo and La Mesa Watersheds. A total of 57,249 tons of carbon dioxide was avoided by our used water treatment operations through the removal of organic pollution load from used water. This is 49 percent of the total greenhouse gas emissions attributed to Manila Water’s operations.

Manila Water will utilize renewable energy whenever feasible. We harnessed solar energy from a total of 195 kWp capacity solar panels in two used water facilities. Additional solar panels will be installed in other facilities. We also piloted a waste-toenergy plant with septage sludge as its feed at the FTI Septage Treatment Plant. Three full-scale waste-to-energy facilities will be constructed in three used water facilities in 2018 that will cover 85 percent to 100 percent of their electricity requirements. Manila Water is undertaking the detailed design of the 1.2 MW mini-hydro plant in Balara, Quezon City which will be constructed by 2019 and operational by 2021.

USED WATER

Disclosure 306-1
Water that has been used by customers was collected and fully treated in our used water treatment facilities to comply with effluent standards, protect public health, and restore water bodies. Manila Water treated a total of 56.42 million cubic meters of used water through activated sludge/aerobic treatment that diverted 9,087 tons of organic pollutants from waterways. There was a 10 percent increase in used water treated brought about by new sewer connections and additional sewage treatment facilities, which are the Manocmanoc STP of Boracay Water, and Marikina North STP and Taguig North STP of Manila Concession. The Laguna Technopark STP of Laguna Water had been upgraded to increase its capacity and improve its efficiency. Estate Water installed a new flow meter in Boni STP that resulted in a more accurate reading of incoming flow in 2017.

2017 Average Effluent Quality
Manila Water’s operations in the Philippines comply with the effluent limits prescribed in DENR Administrative Order 1990-35 while the environmental regulators DENR-Environmental Management Bureau and Laguna Lake Development Authority are in the process of evaluating the submitted Compliance Action Plans which proposes to upgrade used water facilities that conform with revised effluent limits set by DAO 2016-08, in accordance with the transitional provisions mentioned in the same administrative order.

NON-HAZARDOUS WASTES

Biosolids, grits, and screenings are by-products of used water operations. Biosolids from Metro Manila and Laguna Water used water facilities were composted and used as soil conditioner in sugarcane fields in Tarlac and Pampanga that were affected by volcanic ash (lahar). Biosolids from Boracay Water were hauled to Numancia, Kalibo and composted for use as soil conditioner at sugarcane plantations. Biosolids generated in Clark Water are composted and stored on-site. Grits and screenings were properly disposed in a sanitary landfill.

HAZARDOUS WASTES

Hazardous wastes generated from our operations are managed, hauled, treated and disposed properly. Some fluorescent lamps were replaced with LED lamps to reduce hazardous wastes generation. The used lead acid batteries and used oil of Manila Concession were donated to ABS-CBN Foundation’s Bantay Baterya program for treatment and recycling. Other hazardous wastes were transported, treated, and disposed locally through DENR-accredited service providers.