Of the three sedimentation basins at La Mesa Treatment Plant that were affected by sludge accumulation due to the highly turbid raw water brought on by Typhoon Ulysses, one is already fully operational and one has already been cleared of sludge and is now being refilled.
However, the removal of sludge from the last affected basin is taking longer than expected. Per our latest estimate, it will take another five days to get the last basin working fully, ramp up production, refill all major reservoirs, and build up pressure in the pipelines.
We are therefore constrained to extend up to November 29, 2020 the rotational service interruptions that are currently in place, to ensure that all affected customers will still get water supply daily despite the reduced production of our treatment facilities.
Over the course of the next few days up to November 29, 2020, the actual service interruption schedules that our customers will experience will gradually shorten with the continued build-up of pressure in the pipelines. In most areas, water service will be fully restored prior to that date, leaving only the farthest and highest points of our concession area to experience the scheduled interruptions right up to November 29, 2020. Meantime, we are sustaining the deployment of mobile tankers to deliver potable water.
As in previous announcements, we advise customers to expect some discoloration in the water supply after the resumption of service. If this happens, water should be allowed to flow out from faucets briefly until it clears. They may also cover their faucet with a clean white cloth to serve as filter, making sure to regularly replace the cloth as needed. Water intended for drinking should be boiled first.
We apologize to our affected customers for the inconvenience that this situation has caused. We are working without let-up to facilitate our clearing operations and restore water service sooner rather than later.
