Some Corpus Christi residents may still notice an earthy or musty taste or smell in their tap water, but Corpus Christi Water says the issue is improving.

The utility says the change was caused by naturally occurring organic material that made its way into the city’s water supply from western reservoirs through the Nueces River.

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That material reached the O.N. Stevens Water Treatment Plant last week and caused the noticeable change in taste and odor.

Corpus Christi Water says those compounds are no longer being detected in the water coming into the treatment plant as of Thursday afternoon. However, water that already made its way into the city’s distribution system is still working through the pipes.

That means some residents could continue noticing the taste or smell for a little longer.

Most areas are expected to see improvement by early this week, although some neighborhoods could take longer depending on how quickly water moves through the system.

Normally, the city can flush its water lines to help clear the issue. However, Corpus Christi Water says it is not recommending that right now because crews are working on repairs to the Mary Rhodes Pipeline.

The city first alerted residents to the unusual taste and odor on September 16.

Corpus Christi Water says the water remains safe to use and continues to monitor water quality throughout the system.

Residents who have concerns about their water can call 3-1-1. After normal business hours, callers should follow the instructions provided in the automated message.