The Cedaredge public works department has reported to the board of trustees on the complaints about taste and odor of the town's drinking water. The report was made available at the trustees' Oct. 11 work session.
The cause of the taste and odor is "prolonged higher than normal temperatures this summer" which resulted in "several types of algae (having) the opportunity to grow exponentially" in the town's raw water supply reservoirs.
"There is no reason to be alarmed," the report states, adding "residents do not need to take extra precautions when drinking or using water."
Additional monitoring has been under way to check on the town's distribution system. "The results confirm that the source of the odor, which strongly affects taste, is the algae in the source water reservoirs prior to filtration and disinfection," says the report.
The report adds some suggestions and possible actions that the town can take for dealing with the problem:
• "Some people can sense the effects of the algae more distinctly. Any odor is less obvious when the water is cold, so refrigerating water to drink could help.
• "Fresh carbon filters are usually effective at removing certain odors from water, but we expect the raw water quality to improve in the next few weeks and there is nothing that needs to be done to improve the water safety."
• A proposed short-term solution; spend $5,000 to $10,000 on powered activated carbon and add it to treatment plant feedstocks.
• In the medium term; install a chemical feed system for adding potassium permanganate. The system would require extensive monitoring to prevent discoloration of water. This is called "a very viable option."
• A long-term option would be to dedicate more town resources to the ongoing program of maintaining, improving, and developing the fresh water springs on Grand Mesa.blog comments powered by Disqus