SHAH ALAM, Aug 21 — Water from 27 pipelines at Selangor’s 34 water treatment plants (WTPs) have met potability standards, said state executive councillor for agriculture and infrastructure Dato’ Izham Hashim.
He said two pipelines met the benchmark this year and four more will be added to the roster between 2026 and 2028, so water from all pipelines can be drunk safely within three years.
“In terms of drinking water quality standards, Selangor has performed well every year, with a 99.94 per cent score in May,” he told Media Selangor recently.
He said the 34 plants have their own pipe networks, except for two that share the same network, with every network feeding into balancing pools that channel water to consumers.
Izham added that two monitoring methods are used to ensure water quality, which are measured by pH level (acidity or alkalinity), turbidity, colour, and chlorine residuals. These methods are:
Periodic analyses of 1,500 water samples by a lab
Hybrid distribution water quality real-time analyser (Hydra), online quality monitoring stations, anomaly detection alarms
He also said 190 Hydra stations in the state log readings every 15 minutes, with data updated daily, to ensure water quality.
He added that Hydra stations are not just installed at WTPs, but also anywhere that needs monitoring and an alert system for anomalous water quality readings.
“We don’t want (a situation) where water is fine at the plants but its quality drops when it enters pipes,” Izham said.
