摘要:

Work smarter, not harder. We've all heard that's the way to get ahead, to earn more, to be successful. It's also the way for a water agency to improve its bottom line, as was noted by Southern California Edison (SCE) representatives who handed over more than $60,000 in incentives and rebates to Eastern Municipal Water District (EMWD) in December 1994 and February 1995.

ISSN:0149-8029    

DOI:10.1002/j.1551-8701.1996.tb00531.x

出版商:Wiley    

年代:1996

数据来源: WILEY

摘要:

Sometimes we think that safety just happens. Years may go by without a serious injury or accident; then a serious incident occurs. We wonder how an accident like this could happen and soon learn that our safety program lacks not only the solid structure of policies and procedures but also a sense of priority in our everyday duties. A well‐managed safety program–like most reliable workplace programs–is built on a foundation of policies, programs, and procedures. Good managers plan for safety, budget for safety, and hold themselves accountable for safety. Safety, as you can see, doesn't “just happen.” If you'd like to see how well you are walking the talk, take this quiz. See for yourself just how committed you really are to safety.

ISSN:0149-8029    

DOI:10.1002/j.1551-8701.1996.tb00532.x

出版商:Wiley    

年代:1996

数据来源: WILEY

摘要:

After responding to a waterborne outbreak of giardiasis in 1984 in McKeesport, Penn., the Allegheny County Health Department and Allegheny County Surface Water Treatment Plants learned a great deal about treatment optimization. They recognized that chemical treatment, rapid mixing, flocculation, sedimentation, filtration, and disinfection should all perform at peak efficiency at all times, as each of these processes represents a barrier to the passage of pathogenic organisms.

ISSN:0149-8029    

DOI:10.1002/j.1551-8701.1996.tb00533.x

出版商:Wiley    

年代:1996

数据来源: WILEY

摘要:

Coagulation, flocculation, and sedimentation are the first line of defense for plant optimization. At the heart of these processes is the coagulant. Selecting the correct type of coagulant for your treatment facility is vital. Selection can be accomplished through jar testing, although full‐scale evaluation is the best way to determine the most effective coagulant or combination of coagulants. Another consideration is the raw water changes that may occur with seasonal changes. Consider and evaluate the use of coagulant aids such as polymers. These chemicals may be beneficial in maximizing the effectiveness of the coagulant chosen. Many consultants will assist operators in jar testing coagulants and auxiliary chemicals. State and federal agencies may also be able to provide operators with data regarding coagulants and their use.

ISSN:0149-8029    

DOI:10.1002/j.1551-8701.1996.tb00534.x

出版商:Wiley    

年代:1996

数据来源: WILEY

摘要:

If you're searching for the best check valve to fit your needs, there are three factors to consider: non‐slamming characteristics, head loss characteristics, and cost when considering new valves for your application.

ISSN:0149-8029    

DOI:10.1002/j.1551-8701.1996.tb00535.x

出版商:Wiley    

年代:1996

数据来源: WILEY

摘要:

Data compiled in the summer of 1994 indicate that, like cross‐connections, elevated and ground storage tanks are a major source of drinking water contamination in the distribution system.

ISSN:0149-8029    

DOI:10.1002/j.1551-8701.1996.tb00536.x

出版商:Wiley    

年代:1996

数据来源: WILEY

摘要:

This month's question concerns grounding electrical lines to water pipes. The answer gives a brief history of AWWA's viewpoint on electrical grounding of water pipe, and provides a copy of the AWWA Statement of Policy on Grounding of Electric Circuits on Water Pipe as of January 22, 1995, and a copy of Fort Erie, Ontario, Canada's Operational Guidelines for Water Service Repair/Meter Installation or Renewal. The article calls attention to safety issues related to this practice.

ISSN:0149-8029    

DOI:10.1002/j.1551-8701.1996.tb00537.x

出版商:Wiley    

年代:1996

数据来源: WILEY

摘要:

Taste and odor problems can affect hot or cold water, but hot water problems usually bring complaints of smells like rotten eggs. The rotten egg odor is caused by hydrogen sulfide (H2S) gas. The odor is repulsive, but the gas is not usually harmful at the low concentrations that occur in a household water system.

ISSN:0149-8029    

DOI:10.1002/j.1551-8701.1996.tb00538.x

出版商:Wiley    

年代:1996

数据来源: WILEY

摘要:

Georgetown, Texas, a community of 20,000, straddles Interstate 35 about 30 miles north of Austin. A Texas Main Street Community, Georgetown has won praise for its Century Plan and restoration of its historic town square.

ISSN:0149-8029    

DOI:10.1002/j.1551-8701.1996.tb00539.x

出版商:Wiley    

年代:1996

数据来源: WILEY

摘要:

If personnel management problems and costs are getting you down, it's time to take a look at the alternative. This article shines a spotlight on the growing practice of using contractors. Topics covered include staying legal, how to write and evaluate an RFP (request for proposals), evaluating proposals, and measuring contractor performance.

ISSN:0149-8029    

DOI:10.1002/j.1551-8701.1996.tb00540.x

出版商:Wiley    

年代:1996

数据来源: WILEY