Dignitaries dedicate North Windham Wastewater Treatment Plant

By Ed Pierce

It’s been said that success in life is about project management in determining deliverables, making milestones, and always pursuing the critical path. For years, the Town of Windham has sought to find a solution to effective wastewater treatment and on Oct. 8, all those efforts were achieved with the dedication of the new North Windham Wastewater Treatment Plant.

Dignitaries watch as U.S. Senator Susan Collins of Maine
cuts the ribbon to open the new Windham Wastewater
Treatment Plant on the grounds of Manchester School in
Windham on Oct. 8. From left are Scott Firmin and Bill Lunt
of the Portland Water District, Senator Collins, Windham Town 
Council Chair Mark Morrison, RSU 14 Superintendent of
Schools Christopher Howell, and Windham Town
Manager Robert Burns. PHOTO BY ED PIERCE   

With U.S. Senator Susan Collins of Maine on hand to cut the ribbon marking the new facility becoming fully operational on the grounds of Manchester School, Windham Town Council members and representatives of the Portland Water District and RSU 14 spoke about the collaboration it took to bring the $48 million project to fruition at no expense to taxpayers.

After decades of proposals, studies, and rejections from voters at the ballot box, Windham residents resoundingly approved sewer and wastewater treatment project for North Windham in a special referendum in June 2022. Partnering with the Portland Water District and RSU 14 to create the massive infrastructure project, the Windham Town Council covered the remaining costs for the initiative through a combination of grant funding, a $38.9 million award by the Maine Department of Environmental Protection, and North Windham TIF funding supported by North Windham businesses.

Now completed, the new wastewater treatment facility will address environmental issues in North Windham by removing 25,000 pounds of nitrogen and phosphorus pollutants each year being dumped by septic systems into the aquifer and watershed. The installation of sewers is expected to stimulate significant economic growth in Windham and lead to development in the area by industries and businesses not willing to locate here because of associated septic system issues and costs.

Through an agreement between RSU 14 and the Town of Windham, in exchange for locating the new wastewater treatment site at Manchester school, the town built four new playing fields for youth sports at the school.

The new Windham Wastewater Treatment facility uses Membrane Bio-Reactor technology with innovative drip dispersal and will be the first system to use drip dispersal of this scale in Maine. This technology is designed to improve the quality of local groundwater and local waterways, and was selected for its reliability, flexibility, and cost effectiveness.

Portland Water District officials say that the facility will clean and filter community wastewater that is currently being discharged untreated into septic systems. The cleaned, high-quality water, which is extremely low in nitrogen and phosphorus, will be released into an advanced drip dispersal system that will be 2 feet underneath the new athletic fields at Manchester School. They say the sandy soils native to the area are ideal for this system.

Because of the lack of an effective sewer system in North Windham, over the years contaminants have continued to pollute the aquifer, threatening surrounding ponds and lakes, and stifling economic growth. For the past two decades increasing nitrate levels have been observed in the underlying aquifer that threatened local water resources including Sebago Lake. Current levels of nitrates in the ground water have exceeded drinking water standards and septic system pollution entering the aquifer directly impacts surrounding valuable water resources. This new wastewater treatment plant addresses the issue before the problem escalated and became irreversible.

Speakers at the dedication included Senator Collins; Windham Town Council Chair Mark Morrison; RSU 14 Schools Superintendent Christopher Howell; Windham Town Manager Robert Burns; Maine DEP Water Quality Division Director Gregg Wood; Bill Lunt of the Portland Water District Board of Trustees; and Portland Water District General Manager Scott Firmin.

Collins said she was surprised to learn that Windham did not have an existing sewer system but praised everyone who worked diligently to make this project a reality.

“I was shocked that an area this populated did not have a wastewater treatment facility,” she said. “It was essential that we help.”

Collins was able to obtain $2 million from Congress to contribute toward the project.

“It has the smallest carbon footprint, and this innovative technology will serve as a model for other communities in Maine,” she said. 

The project fits with an upcoming MaineDOT project for Route 302 redevelopment in Windham, the senator said.

“The two projects complement each other,” Collins said. “The vision of community leaders and citizens is truly impressive.”

Funding to support the Windham Wastewater Project included a $38.9 million Clean Water State Revolving Loan Fund Award; a $3.25 million SRF Debt Forgiveness Grant, $1.7 million in American Rescue Plan Funds allocated to the town, $2 million in Congressional Direct Spending sponsored by Senators Collins and King, and $1.5 million from Cumberland County Government. <

North Windham Wastewater Treatment Plant launches operations

By Ed Pierce

It’s been four years since Windham voters first approved creating the North Windham Wastewater Treatment project to the new plant becoming fully operational, but late last month that milestone event took place.

The new North Windham Wastewater Treatment Plant is now
fully operational on the grounds of Manchester School in
Windham. It is designed to remove 25,000 pounds of
nitrogen and phosphorus pollutants each year being
dumped by septic systems into the aquifer and watershed.
COURTESY PHOTO  

Windham Town Engineer Mark Arienti has informed members of the Windham Town Council and the Windham Town Manager that the wastewater treatment facility, located on the Manchester School grounds, is now up and running.

Plans were approved by Windham voters in a special referendum in June 2022 that included construction of a public wastewater system, and it will result in the removal of about 100 septic systems that were discharging into the North Windham aquifer. Because of the lack of an effective sewer system in North Windham, over the years contaminants have continued to pollute the aquifer, threatening surrounding ponds and lakes, and stifling economic growth.

In addition, for the past two decades increasing nitrate levels have been observed in the underlying aquifer that threatened local water resources including Sebago Lake. Current levels of nitrates in the groundwater have exceeded drinking water standards. Septic system pollution entering the aquifer directly impacts surrounding valuable water resources, and this new wastewater treatment plant addresses the issue before the problem escalated and became irreversible.

The wastewater treatment plant is expected to remove 25,000 pounds of nitrogen and phosphorus pollutants each year being dumped by septic systems into the aquifer and watershed. The installation of sewers is expected to stimulate significant economic growth in Windham and lead to development in the area by industries and businesses not willing to locate here because of associated septic system issues and costs.

Through an agreement reached between RSU 14 and the Town of Windham, in exchange for locating the new wastewater treatment site at Manchester School, the town has created four new playing fields for youth sports at the school. RSU 14 will also be able to shift its wastewater treatment operations at Windham High School to the new facility.

The new plant uses Membrane Bio-Reactor technology with innovative drip dispersal and will be the first system to use drip dispersal of this scale in Maine. This technology is designed to improve the quality of local groundwater and local waterways, and was chosen for its reliability, flexibility, and overall cost effectiveness for operation.

The contractor building the plant installed influent screens and bubble diffuser equipment for the biological nutrient removal (BNR) and sludge tanks. MBR, BNR and sludge blowers were completed in December and the installation of the membranes that will be used to remove the suspended solids was completed in February. Construction crews also built a control shed for the Manchester Drive pump station with a wet well, valve vault and pumps all having been installed, as well as concrete pads for the shed.

Last December, the sewer rate for the new North Windham Sewer District was established by the Windham Town Council at $16 per 100 cubic feet.

Earlier this year, Windham Town Manager Robert Burns said that because the entire sewer system and wastewater treatment plant will operate at first far below capacity, Windham will use TIF funds to buy down the sewer rate, preventing early users, mostly businesses initially, from bearing the full operational cost. He said Windham expects to raise $1.3 million with a TIF subsidy during the first year of operation for the wastewater treatment plant and sewer system.

The cost of the project was $48 million for the new wastewater treatment plant, new sewer lines and connections to individual properties and businesses around Boody’s Corner as well as to some multi-family residential buildings and a few single-family homes in the area. The new Windham Raymond Middle School will connect to the treatment plant when the school opens.

A Clean Water State Revolving Fund subsidized loan, including $3.25 million in grant capacity will be used to pay for the project, according to Portland Water District Engineering & Asset Management Services. The project also received several million dollars in grants from Environmental Prevention Agency Congressional-directed spending, as well as from Cumberland County and town American Rescue Plan Act funding. 

According to Burns, residential property taxes will not be used to pay back the loan. Instead, he said, it will be paid back using Tax Increment Finance District funds.

Now that the wastewater plant is fully operational, the town has sent out information packages to businesses within the collection system corridor including sewer connection applications, access agreements to allow installation of piping and pumps on the properties, and guidance on what can and can’t be discharged to the sewer

Windham Economic Development Company Executive Director Tom Bartell said the new wastewater treatment plant in North Windham will benefit the town substantially.

“This investment is a foundational step in supporting increased residential and commercial density, improving environmental compliance, and enabling future development in the Route 302 corridor, which will strengthen the tax base and expand options for residents and businesses,” he said.

The plant began operations on Aug. 19.

Businesses that are discharging to the collection system right now include Shaws Plaza (Shaws, Staples, CVS, Town Fair Tire, and Pet Warehouse), Reny’s, Portland Pie, Hannaford, Windham Mall and Manchester School.

All of the businesses currently using the new system, except Manchester School, are discharging to the gravity collection lines that flow to the Portland Water District pumping station at corner of Manchester Drive and Route 35, which pumps it over to the treatment plant.

Manchester School discharges directly to the 15-inch sewer line that flows to the plant.

During the rest of this fall, the Town of Windham will be working to add more North Windham businesses to the sewer and wastewater treatment system. <

Windham Wastewater Treatment Plant construction nearing completion

By Ed Pierce

Work on the new North Windham Wastewater Treatment Plant continues and the facility remains on track to open by late April.

Once completed by late April, Windham's new Wastewater
Treatment Plant on the grounds of Manchester School is
expected to remove 25,000 pounds of pollutants being
dumped each year by septic systems into the aquifer and
watershed. Along with the installation of sewers, the 
project is expected to stimulate significant economic
growth in the town.  COURTESY PHOTO  
   

During a Windham Town Council meeting on Jan. 13, Windham Town manager Bob Burns told councilors that the exterior split face block siding installation has been completed and about two-thirds of the rubberized roof has been installed. The project’s concrete subcontractor is now building the foundation for an emergency generator pad and has finished work on the transformer pad along with the blower pads for the building.

“On the interior, subcontractors are applying block filler and painting the chemical, equipment, and Membrane Bio-Reactor rooms,” Burns said.

The new facility is being constructed on the grounds of Manchester School in North Windham. It was approved by voters in 2023 and is expected to remove 25,000 pounds of nitrogen and phosphorus pollutants each year being dumped by septic systems into the aquifer and watershed. The installation of sewers is expected to stimulate significant economic growth in Windham and lead to development in the area by industries and businesses not willing to locate here because of associated septic system issues and costs.

Through an agreement between RSU 14 and the Town of Windham, in exchange for locating the new wastewater treatment site at Manchester School, the town has created four new playing fields for youth sports at the school. RSU 14 will also be able to shift its wastewater treatment operations at Windham High School to the new facility.

The new North Windham Wastewater Treatment facility will use Membrane Bio-Reactor technology with innovative drip dispersal and will be the first system to use drip dispersal of this scale in Maine. This technology is designed to improve the quality of local groundwater and local waterways, and was chosen for its reliability, flexibility, and overall cost effectiveness for operation.

As construction proceeds on the wastewater treatment plant, the contractor has installed influent screens and bubble diffuser equipment for the biological nutrient removal (BNR) and sludge tanks. MBR, BNR and sludge blowers were completed in December and the installation of the membranes that will be used to remove the suspended solids is anticipated to occur sometime in February.

Construction crews are also building a control shed for the Manchester Drive pump station with a wet well, valve vault and pumps all having been installed, as well as concrete pads for the shed.

In December, the sewer rate for the new North Windham Sewer District was established by the Windham Town Council at $16 per 100 cubic feet.

Burns said that because the entire sewer system and wastewater treatment plant will operate at first far below capacity, Windham will use TIF funds to buy down the sewer rate, preventing early users, mostly businesses initially, from bearing the full operational cost.

Windham expects to raise $1.3 million with a TIF subsidy during the first year of operation for the wastewater treatment plant and sewer system.

The $48 million project includes a new wastewater treatment plant, new sewer lines and connections to individual properties and businesses around Boody’s Corner as well as to some multi-family residential buildings and a few single-family homes in the area. The new Windham Raymond Middle School will connect to the treatment plant when the school opens.

A Clean Water State Revolving Fund subsidized loan, including $3.25 million in grant capacity will be used to pay for the project, according to PWD Engineering & Asset Management Services Manager Greg Pellerin. He said the project also received several million dollars in grants from Environmental Prevention Agency Congressional directed spending, as well as Cumberland County and town American Rescue Plan Act funding.

According to Burns, residential property taxes will not be used to pay back the loan. Instead, he said, it will be paid back using Tax Increment Finance District funds.

As the project gets closer to becoming operational this spring, Burns says that the town will send out information packages to businesses within the collection system corridor including sewer connection applications, access agreements to allow installation of piping and pumps on the properties, and guidance on what can and can’t be discharged to the sewer.

The new sewer system is expected to launch in North Windham by May. <