Ensuring the Safety of Drinking Water After a Wildfire
As wildfires continue to ravage Southern California, concerns about the safety of drinking water have become more prominent. The aftermath of a major fire can have serious implications on the quality of tap water, making it essential for residents to stay informed and take necessary precautions.
Wildfires, such as the Tubbs Fire in 2017 and the Camp Fire in Paradise, have been known to cause widespread drinking water contamination in affected areas. The leaching of toxic chemicals from burnt infrastructure, volatile organic compounds like benzene, heavy metals, and microbes can pose immediate and long-term health risks to residents.
It is important to be aware of the various ways water can be contaminated post-fire, including incineration of urban infrastructure, toxic runoff from firefighting efforts, and disruptions to the distribution network. The severity of contamination can vary, and it may take months for drinking water to be deemed safe again.
Steps to Take if You Live in a Fire-Impacted Community
If you reside in or near a fire-impacted community, it is crucial to identify your water provider and check for any advisories regarding the safety of tap water. Boiling, filtering, or adding disinfectants to the water may not be effective in making it safe for consumption, so it is best to follow the guidance provided by your water provider.
Large water providers like Pasadena Water and Power and LA Department of Water and Power are actively working to restore water quality to regulatory standards. However, smaller systems may face challenges in recovering from contamination.
It is important to note that on-site contamination from damaged infrastructure on private property is a separate concern that should be addressed accordingly. Always refer to official resources for the most up-to-date information on water safety in fire-impacted areas.
Considerations for Domestic Well Owners
For those with private domestic wells, the risk of groundwater contamination post-fire is a significant concern. Chlorine treatment or household filters may not be sufficient to remove pollutants from the water, especially in areas near wildfire sites.
Domestic well owners should:
- Assess their well using the CDC’s rapid assessment form
- Review the SWRCB’s Guide for Well Owners and Well Testing Program Directory
- Follow the CDC’s checklist for addressing issues related to power loss or pressure loss
- Inspect septic tanks for any damage that could impact water quality
It is important for domestic well owners to take proactive steps to ensure the safety of their drinking water, as state agencies do not regulate domestic well water quality to the same extent as public water systems.
Whether impacted by the fires or looking to support recovery efforts, staying informed and taking necessary precautions are key in safeguarding the health of residents in fire-impacted areas. Donations of critical supplies, such as bottled water, and support for mutual aid groups can make a meaningful difference in the ongoing recovery process.
