Trends Winter 2014 | Page 14

Ayres Associates recently completed work with the City of Palatka on wastewater treatment plant improvements for its reclaimed water tertiary treatment system, including its chlorine contact chamber, disc filters, and reclaimed water transfer pumps. One of the reasons for the success of the reclaimed water project was Ayres’ timeliness in providing the conceptual design and cost estimation. In addition, through value engineering of the different design components and detailed inspection oversight, Ayres was also able to react quickly to contractors’ questions and concerns and adjust the scope accordingly, Boynton said. “In the end, I think it was this open and honest communication and collaboration that Ayres developed with the City and individual contractors that made this project successful and the City’s goal of zero discharge realized,” he said. “Their ability to adapt to changing field conditions kept the project moving without delays. We would work cooperatively to ensure that permits 14│TRENDS were issued prior to and sometimes concurrent with the construction project commencing.” Staying ahead of the curve While reclaimed water systems are gaining popularity now, Palatka was an early leader when it instituted the practice in 2005 and then expanded it in 2007. “We like to stay ahead of the game,” McCann explained. “The City’s always tried to be proactive. We don’t like to sit around waiting for the world to fall apart and then try to fix that. We like to recognize problems in advance and see what we can do to offset those problems from occurring.” Daryl Myers, an environmental engineer at Ayres who’s played a key role in developing the reuse water system, isn’t aware of another community in the area implementing a reclaimed water use system like Palatka’s. “In a community of 10,000, I would be hard-pressed to think of another community in northeast Florida that has a reclaimed system of this magnitude,” Myers said. “It’s been a very positive thing, and they have a head start over a lot of other communities that would probably like to be doing this.” Myers, who served as the engineer of record on the reclaimed water system plant expansion, was responsible for designing a reclaimed water piping system, determining reclaimed water irrigation sites, and creating the route across the City to reach those sites. He designed a new reclaimed water pumping station and nearly 33,000 feet of pipe across the City to supply reclaimed water to several irrigation sites, which include the City cemeteries, Palatka High School, St. Johns River State College, Ravine Gardens State Park, and the St. Johns River Water Management District Headquarters Office. Myers also helped coordinate acceptance of the reclaimed water at several of these sites and designed improvements at the wastewater treatment plant to facilitate the treatment of effluent to reclaimed water standards. Truly creative problem solving Ayres, one of the City’s continuing services providers, has also been responsive to the special challenges or problems that have occasionally presented themselves, McCann added. The most recent issue involved a new chlorine contact chamber the City installed about two years ago. The outfall from the chamber, a critical component in properly disinfecting the wastewater and transferring reclaimed water to the golf course holding pond, was modified due to Above: The City of Palatka’s plant supplies reclaimed water to multiple venues, including the municipal golf course, airport, cemeteries, and ball fields. A holding pond is located at the City’s municipal golf course as a strategic location for distribution to area reclaimed water users. Reusing and Preserving According to the Florida Department of Environmental Protection, the state’s population has increased by more than 20 percent over the past 10 years, putting fresh water in higher demand and leaving the state vulnerable to water shortages. In response, Florida’s five water management districts have designated “water resource caution areas” and encourage the use of reclaimed water whenever possible. TRENDS │15