Tap water in the Los Angeles area could be unavailable for some time due to concerns about damage to infrastructure and chemicals from wildfires, experts say. At least two water authorities have issued warnings about possible contamination from ongoing fires. Experts are worried about the risks to human health from chemicals and pathogens entering the water system, but accurate assessment may take time.
Residents in Pacific Palisades and neighboring communities have been advised to use bottled water for cooking, drinking, and other purposes due to potential contaminants like benzene entering the water system. The Pasadena Department of Water and Power has also instructed residents to switch to bottled water until further notice following concerns about debris impacting the water quality.
Drinking water systems can become contaminated after wildfires, as seen in past incidents in urban areas. Loss of water pressure in the system can be a sign of contamination, triggering careful analysis of the water quality. Environmental engineers are conducting tests in key areas to determine when the water will be safe to drink again.
While there is concern about potential contamination from flame retardants and ash from burnt materials, experts are mainly focused on monitoring benzene and other harmful chemicals due to their carcinogenic properties. Boiling water does not eliminate these chemicals, so the authorities have rescinded the “boil water” advisory. The testing process for dangerous chemicals can take weeks or even months to complete.
In cases of low contamination levels, flushing water pipes may eliminate the hazard, but in severe cases, pipe replacements might be necessary. Contamination around destroyed buildings poses the highest risk in the water distribution system. It is crucial for authorities to thoroughly assess and address the contamination to ensure public safety.
Source: www.nbcnews.com
