Course: BFM 203 Water Treatment and Control

Lecture

(5/7)

Taste and Odor Control

Taste and odor complaints, along with complaints about color in drinking water, are among the most common and difficult problems that water operators face. Perhaps the most damaging effect of taste and odor in drinking water is the loss of public confidence in the water utility's ability to provide safe, high-quality water. Taste and odor issues may stem from raw water sources, treatment plant issues, distribution system issues, or within the household. A number of manmade causes of taste and odor exists.

- Municipal wastewater
- Industrial wastes
- Chemical spills
- Urban runoff
- Agricultural wastes
- Treatment plant and distribution system maintenance
- Household plumbing

Note that while household plumbing issues may be out of operator control, identification and understanding of such problems help operators work with homeowners to resolve issues.

To determine the cause of taste and odor issues, we find its place of origin, determine the underlying cause, and then develop a plan to correct the situation. Good communication between operators and lab analysts at each stage of treatment is necessary when attempting to identify the cause of taste and odor issues.

Prevention is a critical aspect of any taste and odor control program. This includes appropriate raw water management, efficient plant maintenance, and effective distribution system maintenance. Customer interaction related to the causes of and solutions for taste and odors is also an important part of the prevention process.