Tag Archives: CSOs

Senate CSO Hearing Coverage — Just the Facts, Please!

Note: The following was written by GMWEA executive director Daniel Hecht to respond to a segment aired by ABC-affiliate TV station Local22.

Dear Local 22 Newsteam:

Thank you for covering the Vermont Senate Committee on Natural Resources and Energy hearing on CSOs (combined sewage overflows), at Echo Center, Weds. Sept. 19.  We are glad that this important issue has come into focus for the legislature and the general public.

However, I suggest that Courtney Kramer’s segment over-emphasized certain facts and failed to provide other, more important, details.

I am executive director of Green Mountain Water Environment Association (GMWEA), a nonprofit organization with 500 members – primarily operators of drinking water and wastewater facilities, municipal department of public works staff, and water scientists and engineers – which serves to offer water quality technical education, provide advisory to policymakers, and inform the public about water quality issues.

We agree with Conservation Law Foundation staff attorney Elena Mihaly – prominently featured in the segment — that a sign announcing a beach closure due to e. coli contamination, related to CSO events, is not in accord with anyone’s desired vision of Vermont.

However, the segment devoted too much time to this image and to Ms. Mihaly’s opinions, and too little to the roomful of environmental experts who could have provided important information to your viewers if their comments had been given more time on air.  In short, the segment missed an opportunity to foster a better-informed, more engaged public.

CSOs result from a complex convergence of rainfall volume, rate, and duration, and the infrastructure that attempts to mitigate the harmful effects of human pollution on waterways. Each region faces unique stormwater management challenges, dependent on local geology, waterways, paved surfaces, built environments, and infrastructure legacy – the type, age, and condition of wastewater/stormwater pipes and storage capacity.  There exists no single solution applicable to every location; nor are all  Vermont towns equally able to pay for improvements.

The complete elimination of all combined systems is certainly not a solution.  It is neither economically feasible nor, necessarily, in the best interests of water quality.  Stormwater itself is dirty, carrying animal feces, trash, organic garbage, gasoline, oil, and other harmful ingredients.  Except for the occasional CSOs, combined systems treat this water year-round.  Rutland’s systems, for example, treat 643 million gallons of stormwater yearly – equivalent to the entire volume of Lake Elmore – releasing water that is actually cleaner than the receiving streams!  Even when CSOs occur, the plants are still treating the overwhelming majority of the water, and domestic wastewater  constitutes a very small percentage of the outflow volumes.

Finally, the state and its municipalities are in fact working hard to reduce the incidence and impact of CSOs.  New warning regulations assure public notification within one hour of an overflow, and full reporting within twelve hours, assuring transparency.  The Vermont DEC is requiring the 14 cities and towns with combined systems to create long-term plans.  Cities like Burlington are implementing a range of solutions, such as satellite treatment stations and “green infrastructure” filtration/absorption sites.  New computer monitoring and control technology is coming on line, allowing more agility and specificity in operators’ responses to heavy rains or outflows.

The public should know that the water quality professional community fully recognizes the importance of our natural waters to our way of life, public health, the tourism economy, and the vitality of the environment.  As Karen Horn, director of public policy and advocacy for the Vermont League of Cities and Towns, said at the end of the hearing, the best approach will be for the legislature to direct prioritization of CSO-related projects through an integrated, multi-sector, multi-agency effort that fully studies the issue and provides all the facts for public consideration.  We hope you will help us pursue that approach through your reporting.

If you would like more information, I invite you to access the collective expertise of GMWEA’s extensive membership; my contact information is below.

Sincerely,

Daniel Hecht

“Brave Little State” Explores CSOs

On May 5, Vermont Public Radio released a new podcast in its series “Brave Little State,” focusing on the challenges of combined sewer overflows (CSOs).  The feature stemmed from a question offered by Winooski resident Mike Brown, who asked “Why do we have pollution in Lake Champlain, and what can we do about it?”

His question triggered a month-long investigation by reporters Angela Evancie and Taylor Dobbs and resulted in a 28-minute program that describes CSOs – what they are, what causes them, and why they’re so hard to manage – and explores the problem of aging water/wastewater infrastructure.

Led by Jeff Wennberg, Commissioner of Public Works for Rutland City, the team visited one of Rutland’s four CSO outflow stations to learn more about the technologies and practices affecting combined stormwater/wastewater systems. The Rutland system was expanded to limit overflows to about two heavy precipitation events per year.  However, due to changing weather patterns and the growth of the region’s developed landscape, stormwater volume has increased dramatically.  The system now experiences 20 to 30 CSO events per year.

Wennberg, who would prefer to see no more than one every five years, emphasized that his department watches weather reports with extreme vigilance – and, often, extreme anxiety. Even so, he defended combined sewers as doing a superb job, saying that overflows constitute only a tiny proportion of the enormous amount of urban stormwater these systems treat.

Wennberg believes a three-pronged approach is needed to reduce CSOs: “green” infrastructure that encourages infiltration; “grey” infrastructure in the form of large, temporary holding tanks; and “data” infrastructure — technologies capable of rapidly-adaptive responses to unpredictable flow volumes.

As all operators know, it all comes down to “Who’s going to pay for it, and how soon?” Wennberg said.  That question brought the reporters to the Statehouse, where they interviewed Rep. David Deen, chair of the House Natural Resources, Fish and Wildlife Committee.  Deen explained that declining federal funding has limited the state’s ability to pay for water quality management improvements.

He also said that the state’s “best bang for the buck” would be investment in reducing runoff from agricultural lands and paved surfaces, which contribute the majority of phosphorous pollution.  Dobbs reiterated that CSOs from municipal systems contribute only 4% of Lake Champlain’s phosphorous load.

The feature aired several times during May, and you can hear it in its entirety, or read a transcript, at http://digital.vpr.net/post/what-can-be-done-about-vermonts-aging-sewer-systems#stream/6