Napa City Update: December

Napa City Update: December

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City Clerk announces Commission opening

Want to make a difference in your community? Do you have expertise you could share? The City Clerk is accepting applications from Napa residents to fill one vacancy to serve on the Civil Service Commission. Deadline for submission of applications is 5 p.m. Friday, Dec. 30.

The Civil Service Commission acts in an administrative capacity for the City Council on issues concerning personnel administration, classified service regulations, appeals by persons in the classified service regarding employment status or condition of employment, and provides recommendations to the City Council on salaries and new classifications in the classified service.

The Civil Service Commission meets on the third Monday of each month. Meetings begin at 5:15 p.m. in the Council Chambers at City Hall, 955 School St., Napa. The members of the Civil Service Commission must be residents of the City of Napa for a continuous period of at least one year immediately preceding appointment of the Commission and must be registered voters.

The City of Napa recruits throughout the year for interested residents to serve on a variety of boards and commissions that examine issues of community concern. Volunteers appointed to serve on a board or commission help City Council and city departments examine issues and, in turn, shape the future of Napa. Board and commission members are appointed by the City Council and terms vary but are typically either two or three years. Most board members must be city residents and registered voters.

To find out more about the different commissions, committees and boards and to apply online, please visit and choose Boards Commissions & Committees from the Quick Links bar. For more information contact Dorothy Roberts, City Clerk, at 707-257-9503.

Unidirectional Hydrant Flushing Program

On Thursday, Dec. 8, the City of Napa Water Division will start implementing our annual Unidirectional Hydrant Flushing Program. This year’s program is expected to continue through March and will include hydrants located within regions of central Napa—from the Marina south of Imola Drive up to Sierra Ave, north of Trancas Street, and will include Downtown. This year’s program will not include the hillside areas, concentrating on the central area roughly bounded by Linda Vista Ave and Laurel St on the west and by Silverado Trail and the Napa River on the east.

If we do not routinely flush our city water mains, water quality will degrade. Even during a drought, hydrant flushing is essential maintenance activity to clean and flush the mains. Chlorine is an important disinfectant that ensures your drinking water remains clean, safe, and free of disease-causing bacteria and viruses. When pipes are not flushed, sediment can build up, react with chlorine and increase the potential formation of disinfection byproducts as well as require us to increase the amount of chlorine to ensure your water remains potable.

To perform unidirectional flushing, fire hydrants are opened to move a large volume of water at a higher than normal velocity through the mains. This procedure mobilizes particles and minerals that have settled over time and flushes them out of the system. This activity assists the City in maintaining the highest quality of water in the public water system. The total volume of water used in flushing the Water System this year is estimated to be one tenth of one percent of the amount of water we consume in a year.

The flushing program may cause periods of discolored water and reduced water pressure in localized areas where flushing is being conducted. The discoloration of water is due to mobilization of particles and minerals that have settled in the water main by the high velocity water before being discharged through the fire hydrants. The water will remain safe to use and generally clears within a few hours after flushing has been completed. Residents should monitor their water prior to starting laundry, especially when washing white clothes.

Commercial customers, especially businesses that serve the public, should be aware of the water quality while flushing is taking place in their area.

As part of the Unidirectional Hydrant Flushing Program, City staff will isolate the flushing areas by closing pre-selected system valves. This state-of-the-art program will direct the water to flow in one direction (“unidirectional”) and increase the velocity of the water in the pipes, thus effectively removing particles and minerals from the pipes. Although customers will continue to have water service during this program, flushing operations may activate low-pressure alarms on automatic fire sprinkler systems due to temporary reductions in water pressure in the vicinity of flushing operations.

The hydrant flushing staff will be using dechlorination tablets to remove chlorine in the water before the water goes into the storm drain system and eventually into the Napa River. Due to the high volume of water flowing from the hydrants, the dechlorination tablets may cause some bubbling of the water, giving it a soapy appearance. The tablets are environmentally safe and are being used to protect the river.

Due to the nature of the flushing program, it is difficult to determine the exact day we will flush in a given area. For that reason, the Water Division will update the City’s website daily to provide a map of the region being flushed each day and a map of the region that will be flushed next, to help keep the public up to date on our progress. The flushing program maps and updates can be found at:

The City thanks Napa residents and businesses for their patience and apologizes for any inconvenience our program may cause. Please contact the City of Napa Water Division at 707-257- 9521 with any questions or concerns.

Napa City Update is provided as public service by the City of Napa.


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