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Sustainability
and the
LEED™ Certification Process
Sustainable
design is based on an integrated approach for an entire
assignment. Leadership
in Energy and Environmental Design (LEED™) supports and enhances
this concept ...
Environmental
Management Systems and The Solid Waste Industry:
Part 2:
Regulatory Approach vs. ISO 14001
As previously reported, many solid waste organizations
have yet to adopt an ISO 14001 environmental management system (EMS)
...
Utility
Systems Management:
Two Pennsylvania Project
Profiles
As
municipalities grow, their public works departments face increasing
demands to manage enormous amount of utility systems
information, as well as to meet state and federal regulations. The
City of Lebanon Authority (CLA) and the Northampton Borough
Municipal Authority (NBMA) are no different ...
Bush
Selects USEPA Administrator
President
Bush has nominated Utah
Governor Mike Leavitt to fill the role of USEPA Administrator, a position
now occupied by Acting
Administrator Marianne Horinko.
Utah's
Governor for over 10 years, Leavitt is a moderate Republican who's been praised
for clean air initiatives and criticized for not better protecting his state's
wilderness. The Bush administration hopes Leavitt will appeal to
"green" voters come election time.
Arsenic
Removal:
Assisting Small Water Systems Through New Environmental Technologies
The
arsenic maximum contaminant level (MCL) of 10 micrograms per liter (which the
USEPA issued in 2001) requires many water systems with arsenic concentrations
below the previous MCL to implement treatment processes for arsenic removal.
Many smaller community systems, in particular, utilizing groundwater
supplies with such concentrations above the new MCL, are significantly impacted
by the need for new technologies.
Click
here to learn more about the latest Drinking Water Systems (DWS) Center/
Environmental Technology Verification (ETV) arsenic program initiatives.
An
ETV Program Spotlight
The
DWS is one of seven ETV centers dedicated to facilitating innovative or improved
environmental technologies by verifying performance and sharing information. . .
Water
System Security Grants
The
National Rural Water Association (NRWA), International City/County Management Association
(ICMA) and the Water Environment Federation (WEF) recently received
USEPA water security grants totaling nearly $4 million. The grants support
USEPA's ongoing efforts to assist water systems with vulnerability assessments
in light of upcoming compliance deadlines.
NRWA,
ICMA and WEF will use the funds to implement training, on-site assistance and
internet-based tools for related security preparedness and emergency response
planning. The efforts will target nearly 5,000 community water systems.
Medium
systems (50,000 to 100,000) are required to submit VAs to the USEPA on or before
12/31/03. Smaller systems (3,300 to 10,000) have until
6/30/04.
Pressure
Transient Strategies
| Did You Know? |
| Commonly
referred to as "surge" or "waterhammer," pressure
transients are caused by rapid flow rate changes.
Excessive
or low- pressure transients can cause system failure and increase system
contamination potential. |
Pressure
transients commonly occur in water pipeline systems and can sometimes cause
operational problems or system failure. In
their paper entitled "Pressure Transient Control Strategies for Water
Pipelines," Gannett Fleming Hydraulic Modeling Experts, Kevin
Laptos, PE; Mike Brown, PE; and Jamie
Shambaugh, EIT; illustrate the importance of conducting transient
analyses during system design.
The
paper, recently presented at an ASCE international pipeline conference, concludes
that the best pressure transient control strategy typically depends on specific system
characteristics and minimum and maximum pressure goals. Establishing
desired transient constraints at the beginning of
the analysis is an equally important factor.
Water/Wastewater
Wireless Technologies
A
paper discussing cellular SCADA as an alternative communication system will be
presented coast to coast over the next several weeks. Click
here for an abstract.
Upcoming
presentation venues include the American Public Works Association Congress and
Exposition in San Diego, CA; and the Chesapeake Section AWWA, Chesapeake
Section Water Environment Federation and Water and Wastewater Operators
Tri-Association Meeting in Ocean City, MD. Scan our "Events"
section to learn more.
»
ETV
Drinking Water Center (USEPA)
» LEED
(U.S. Green Building Council)
» NSF
International - Water
» PADEP
Water Management Division Maximum Contaminant Levels (.pdf)
» Vulnerability
Assessment Engine (National Rural Water Association)
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