Whodunit?

NST: Whodunit? Eleven days after thousands of homes in the Klang Valley received putrid piped water, the authorities are still uncertain of the source of the Sungai Selangor pollution.
The chief suspects remain the Bukit Tagar landfill and effluents from pig and cow farms flanking the waterway.
But one thing is certain: On Feb 25, the level of ammonia in the untreated water of the river was 9.2 mg/l, much higher than the 1.5mg/l for drinking water set by the Health Ministry.
That was the day foul-smelling and foul-tasting water gushed from taps in Kuala Lumpur, Gombak, Petaling Jaya, Klang, Shah Alam, Kuala Selangor and Kuala Langat.
The Department of Environment said the reaction from treating the high-ammonia raw water with chlorine had resulted in the foul smell.
It said that Syarikat Bekalan Air Selangor (Syabas) should have stopped drawing water from the river if the quality was not up to the required standards.
Meanwhile, Natural Resources and Environment Minister Datuk Seri Azmi Khalid visited the landfill today.
Speaking to reporters later, he said the cause of the contamination was still inconclusive.
This was a contrast to the statement he made yesterday, when he laid the blame for the pollution squarely on the landfill.
"The management informed me that it is unlikely that they are to blame for the contaminated tap water because the leakage took place after people complained of the foul-smelling water coming out of their taps.
"When I made the earlier statement, it was done before my visit to the landfill," he clarified.
Azmi said there was a breakdown of a valve in the landfill on Feb 26, two days after the furore.
The breakdown caused a 30-minute leakage, leading to 10 cubic metres of waste water flowing about 14km before it reached the river.
He spent several hours inspecting the landfill, which is operated by KUB Berjaya Enviro.