Methyl Tertiary-Butyl Ether (MTBE)

In the past, media reports have raised consumer concern about methyl tertiary-butyl ether (MTBE) leaking into some groundwater sources from underground gasoline storage tanks. MTBE is a gasoline additive that reduces air pollution but can be harmful if introduced to the water supply.

MTBE is not a threat to WaterOne customers. MTBE is most commonly found in states that have enacted stringent air quality laws in areas where air quality is compromised. MTBE is used in reformulated gasoline to increase its oxygen content so it burns more cleanly than conventional fossil fuels, reducing smog.

Although it is unlikely for MTBE to be found in this area, WaterOne has tested for MTBE to ensure its customers' safety. MTBE is not present in our water and is not a threat to our customers.

Public safety is our priority. If WaterOne detects this or any other harmful substance in the water supply, we are required by law to notify the public. To ensure we reach you with important information about water quality and your water service, sign-up for Notify JoCo.