Friday, October 15, 2010

Bangor Students Spray Paint for Healthy Lawn Care

Bangor, ME—The Penobscot County Soil and Water Conservation District in conjunction with the Bangor Area Storm Water Group (BASWG) and the City of Bangor will be spray painting a new message on the streets of Bangor.

Students from Bangor High School will be visiting the Randolph Street neighborhood in Bangor on October 23re to stencil, REDUCE YOUR USE OF LAWN CHEMICALS, DRAINS TO STREAM on pavement near storm drains to remind residents that stormwater flows unfiltered to Birch Stream.  The stencil also depicts a Rubber Ducky, which has become the symbol of stormwater pollution since the “Ducky Ad” aired on television in 2005. In addition to stenciling messages next to the storm drains, the students will be leaving door hangers at area houses to educate residents abut the project and stormwater pollution in general.

Stormwater is rain that does not soak into the ground, but rather flows over the surface of the ground into the nearest body of water. As the water travels, it collects pollution such as pesticides, fertilizers, yard clippings, pet waste, loose soil, gasoline and oil. Storm drains act like funnels, transporting the stormwater from our streets and driveways directly into local waterways.

Chris Brewer of the Penobscot County Soil & Water Conservation District explains that there are many things we can all do to reduce stormwater pollution: “We are encouraging home owners to reduce or eliminate the use of lawn pesticides and fertilizers, pick up their pet’s waste, keep their vehicles well-tuned, and plant vegetation over bare ground and around bodies of water. All of these things dramatically reduce the amount of pollution entering our waterways, and improve water quality.”

The BASWG is a comprised of seven municipalities and other entities, working together to meet permit requirements to make the Bangor Area a better place to live and work. For more information on BASWG and many stormwater friendly homeowner tips visit our website at

Wednesday, August 25, 2010

Soil Erosion Training

Presented by DEP's Nonpoint Source Training Center
Hosted by the Bangor Area Storm Water Group

Date: Thursday, October 21, 2010
Time: 8:00 am - 4:00 pm
Location: Rangely Hall, Eastern Maine Community College, Bangor, Maine

Who should attend? This session has been designed for MS4 Stormwater coordinators, public works employees and private contractors.

Purpose: The primary purpose of this training is to prevent nonpoint source pollution from construction activity by creating an incentive for Maine contractors to become educated on best management practices for erosion and sedimentation control. It’s secondary goal is to recognize contractors who make an effort to educate themselves on erosion control practices and to provide an incentive for contractors to continue education efforts on erosion control practices.

Registration: Please see registration materials and directions in the attached event brochure. Early bird registration fee: $50 if regsistration is received on or before September 21st. The fee is $60 for all registrations received after Sept. 21st.

For more information about registration, please contact Brenda Zollitsch, Facilitator of the Bangor Area Storm Water Group, at or (207) 772-4729. For more ifnormation about the program content and certifcation process, contact Bill LaFlamme at (207) 287-7726.

We hope to see you there!

Wednesday, August 18, 2010

Salt Management in Impaired Streams Roundtable

Wednesday, September 8, 2010
9:00 am - 3:30 pm
Maple Hill Farm Inn and Conference Center
Hallowell, Maine

Roundtable Purpose:
  • Bring participants up to speed on the most recent findings about salt management and impacts in the State of Maine
  • Learn about current methods and deicing alternatives*, including some cost-benefit information
  • Work as a group to identify a list of barriers to and opportunities for addressing the salt issue in impaired stream areas
  • Compile a list of reserch and information gathering questions to guide future grant writing and exploratory efforts in Maine

 * Please note that it is NOT the purpose of this roundtable to advocate for any specific salt alternative or even salt alternatives categorically. This event is designed to provide information and gather ideas, concerns and questions that need to be answered in order to begin to address the impact of salt on Maine's impaired streams.

Roundtable Agenda at a Glance:
  1. Research findings from recent study of salt management in Maine
  2. Research findings on salt in Maine's impaired waters
  3. Maine DOT's approach to snow and ice management
  4. Facilitated discussions:
    • Identifying local issues and barriers to reducing impacts (How real is the problem? What are the real issues?)
    • Compiling group questions (what don't we know that we need/want to know?)

Who should attend?
Becuase there is limited space, registration for this event is open to all MS4 stormwater coordinators and a number of other invited guests. Invited guests will receive a personal invitation from a member of the planning committee. If you would like more information about attending or registration, please contact Brenda Zollitsch, BASWG Facilitator at or 207-772-4729.

Registration and Fee:

In order to cover costs for the event site, food and beverage, as well as registrations management, a small registration fee is being charged. Registrations received on or before August 31: $60.00; after August 31st $65.00. See attached brochure for registration form and payment options.

Special Thanks to the Roundtable Planning Group Members:

  • Zachary Henderson - Woodard and Curran
  • John Murphy - City of Bangor
  • Dave Owen - UMaine SSI Urban Stream Research Team
  • Jan Patterson - City of Lewiston
  • John Peckenham - UMaine Mitchell Center
  • Tamara Lee Pinard - ISWG Facilitator
  • Kristie Rabasca - Southern Maine Stormwater Cluster
  • Doug Roncarti - City of Portland
  • Amy Stratford - Southern Maine Stormwater Cluster
  • Wendy Warren - City of Bangor
  • Brenda Zolllitsch - BASWG Facilitator
For more information, please download the brochure or contact the coordinator for this event:
Brenda Zollitsch, BASWG Facilitator at (207) 772-4729 or

Friday, July 23, 2010


By Amanda Plourde Bangor International Airport Environmental Technician

In the spring of 2008, Bangor International Airport started conducting experiments with floating treatment wetlands also known as Biohavens® to help improve the quality of the water at the outfalls near the airport property. The islands were created by Floating Islands International and donated to the Airport by the inventor Bruce Kania. These islands “bio-mimic” floating wetlands that are found in nature (ex. Peat bogs),and are composed of fibers made from 100% recycled plastic, the layers of recycled plastic are then bonded with foam to provide buoyancy.

At the airport we are always looking for options that can enhance the quality of the storm water that flows off of the property. We began looking into the floating wetlands as an option to meet three treatment objectives.

The objectives were:
  1. Remove/reduce nutrient levels in the waterways
  2. Remove/Reduce trace amounts of glycol in waterways
  3. Reduce the temperature of the water
Based off of experiments conducted by others (ref: the floating islands would be able to meet/exceed objective 1. They also would provide shade to help reduce temperature in the waterways which meets objective 3. The only objective we were unsure about was the ability of the island to remove/reduce glycol and survive in a water/glycol environment.

After determining the objectives two islands were ordered. The first was a 64 sq. ft. island that would be launched in the waterway. The second island was 1 sq. ft. and would be used for laboratory testing.

The Big Island:

Once we received the big island a spot was chosen in the waterway to launch it. The island was planted with sod, and plants from the surrounding area. The goal for the first year was to observe the island and ensure good growth of the plants and grass and to see if it would survive through the winter.

I have provided photos of the island throughout the past three years.
June 17, 2008 a few days after the island was launched
May 15, 2009 the island appeared to survive the first winter. Although it appears that birds had consumed most of the vegetation as it began to grow in the early spring. Netting was placed overt the top of the island to deter animals in hopes the vegetation would grow back.
One month later the island has started to fill in nicely.
During fall of 2009 and spring of 2010 a construction project was completed on the waterways surrounding the airport. The island was nearly destroyed; it had been dragged down the waterway from its original spot and also brought up onto land by contractors attempting to move it out of their way. The main concern was that all of the biological life that had been growing within and under the island for the past 2 years would be killed off because it had been removed from the water. This next photo was taken in December of 2009, the island had now become home to a weasel, and it appeared that we would have to start the process all over again by planting new sod and plants.
In May of 2010 the island was placed back in the waterway. Within one month it had come back to life. The sticks and the netting were removed to reduce the weight of the island so that it would float properly. The plant life has come back and some grass has begun to grow. The island survived the construction.
Initial Laboratory Testing:

During the same time period that monitoring of the large island was taking place tests were being conducted in the laboratory.

The first test that we completed was a control test to see how long it would take glycol to break down in water without any treatment. Two bins were set up with 10 gallons of water each. Circulation pumps were added to move the water between the two bins. Next 1000mL of glycol (a 50/50 mixture was made with 500mL Type I and 500mL Type IV) was added to the system. Originally we thought that the glycol would break down on its own as the water circulated between the two bins. The system was tested each day with a MISCO hand held refractometer, after 7 days of monitoring there was no change in the concentration of glycol within the bins. Next a bubbler was added to the system to see if aerating the water helped the glycol break down. Again after 7 days there was no change in glycol concentration.

Since no change in glycol content was found it was decided that a new test would be started. The whole system was torn down, cleaned, and put back together. The bins were filled with 20 gallons of clean water and 1000mL of type I glycol. The system was tested and an initial glycol reading of 1.0 was recorded. Once again after a period of 14 days there was no change in the glycol content within the system.

On the third attempt a light was installed above the system to see if this would cause a change in the glycol content. The experiment was completed again and no change was recorded after a 14 day period.

The Small Island:

The next test was to begin using the island to see if it would aid in breaking down glycol at different concentrations. The original system was torn down and cleaned and a new test was started.

The island was planted with Swiss Chard and allowed to grow over a period of time, algae also began to grow along the sides of the bin. Swiss Chard was chosen because it grows relatively quickly and has a generous root system. Shortly after preparing the island it was found to be very unstable due to its small size. The first time the island was “launched” in the bin it rolled over and all the soil and seeds were dumped into the water. A second attempt was tried at planting the island with soil and seeds and re-launching it in the bin, again it rolled over. This problem was resolved by placing the island off to one side of the bin and adding a partition to hold it in place (see photo below). In addition to the partition a glass jar was placed under the island to further stabilization. The light was put on a timer to mimic a natural light cycle. We kept the aerator from the previous tests to continue to provide air flow within the water column. The bin was then filled with approximately 15 gallons of water. In order to estimate a scale for real world application we determined that this island occupies about ½ of the surface area of our little pond.

The lab all set up
Another shot of the lab

The Test:

The goal was to see if the biological life growing within the island and the algae growing on the walls of the bin would be able to reduce/remove glycol from the water.

The experiment was started on March 3, 2010. 10 drops of type I glycol were added, with a dropper, to the system each day for (3) days. After the three day period the water was tested for glycol with a CHEMetrics Vacu-vial Glycol test kit, the result after the three day period was 4ppm.
On March 16, 2010 the test was repeated. The amount of glycol was increased to 10 drops of type I glycol each day for (10) days. The purpose of extending the number of days was to attempt to greatly increase the concentration of glycol within the system. After ten days the water was tested again and a result of 3ppm was recorded.
This test continued over a period of approximately one month by continually increasing the amount of glycol each week. Every five days the concentration of glycol in the water was tested. After 30 days the test results continued to be recorded at 3-4ppm of glycol within the system.

Since there was no real change in the concentration of glycol within the system after 30 days, it was decided that a much higher amount of glycol would need to be added in order to obtain a measurable increase.

On April 4th 2010, 2mL glycol was added to the system each day for five days, again a similar result of approximately 2ppm was found after testing.

Next 4mL glycol was added to the system for five days. At this time we also began monitoring Dissolved Oxygen (DO), and pH. After the five day period the results still produced a reasonable glycol content of approximately 21ppm. The DO after this period of time was 4.93mg/L and the pH 7.

The Turning Point

After the first two tests the concentrations did not appear to be reaching a level that would provide a good test of what the system might be capable of.

On April 9th 2010, 10mL of glycol was added to the system. Three days later (4/12/2010) the water was tested, the concentration of glycol was at 30ppm.
On 4/16/2010 the water was retested and the concentration had dropped to 1ppm, DO had risen to 8.33mg/L and pH remained at 7.

This is exactly what we had been looking for; the island system was consuming the glycol and essentially removing everything except the smallest amounts from the water.

Once again the island was put to the test. This time 15mL glycol was added. A glycol test was completed within a few hours of adding the 15mL to see what the glycol concentration starting point was. The result was found to be greater than 65ppm which is the limit of the test kit without dilution. It was decided that it would take considerably longer for the system to consume the glycol at high concentration. After 10 days the concentration was tested and the result was 2ppm Glycol, DO=7.39mg/L, and 5.29pH.

The testing continued over another 30 day period. The amount of glycol added was increased by 5mg/L each week (15mL, 20mL, 25mL, and 30mL). Over this time the concentration was driven up to over 200ppm glycol. Each time the system would consume the glycol bringing it back to 0-1ppm within 7 days.

The final test was completed on June 1st 2010. 30mL of type I glycol was added to the system. The concentration of glycol increased to 500ppm with a DO level of 7.82mg/L and pH of 7.82. On 6/8/2010 the water was retested and the concentration had dropped to 25ppm (95% glycol removal in 7 days). The system was checked again on 6/15 and the concentration had dropped again to 1ppm. Also during this time a population of spring tails was observed on the water’s surface.

These results taken over the 3 month period proved to us that the island systems could effectively reduce glycol concentrations in water. We also believe that increased aeration may improve the islands performance and hope to do more experiments in the future to prove that theory.


I feel that these islands would be a great asset to any airport or other business that may have similar storm water objectives. These systems can improve water bodies by lowering nutrients, providing shade to reduce water temperature, and by reducing or eliminating glycol in the stormwater runoff with the addition of detention and aeration.

Friday, April 16, 2010

5th Annual Regional Street & Stream Cleanup

The Bangor Area Storm Water Group is soliciting help from community groups, businesses, families, and individuals in conducting our Fifth Annual Regional Street & Stream Cleanup. This event is taking place in several locations throughout the Bangor Urban Area. Volunteers will meet for a short safety discussion before heading out to the designated cleanup sites. All volunteers will be provided with free T-shirts as well as gloves and safety vests to wear during the event.  After cleanup activities, groups will reassemble for a free BBQ luncheon and celebration of our volunteers’ hard work.

This event is a coordinated regional effort to clean up our local waterways and protect water quality, as well as to build community awareness about storm water pollution. The Stream Cleanup promises to be a fun and socially rewarding event, each year focusing on different locations throughout the seven municipalities forming the Bangor Urban Area (Bangor, Brewer, Orono, Old Town, Veazie, Hampden, and Milford). Last year was our fourth annual regional cleanup, and it was a huge success with over 300 volunteers participating in the collection of trash along the Penobscot River and its tributaries throughout the region.

If you would like to volunteer for this year’s events please meet us at one of the following locations:

Hampden: May 1, 2010
9:00 am, meeting at Hampden Town Office
Contact: Bob Osborne, 862-6527,

Veazie: May 8, 2010
9:00 am, meeting at the Veazie Salmon Club
Contact: Allan Thomas, 947-2781,

Bangor: May 15, 2010
9:00 am, meeting behind the Airport Mall
Contact: Wendy Warren, 992-4255,

Brewer: May 15, 2010 (Rain Date May 22, 2010)
8:00 am, meeting at Brewer Auditorium
Contact: Ken Locke, 989-5417,

Orono: May 15, 2010
9:00 am, meeting at Orono Town Office
Contact: William Murphy, 866-5051,

Milford: May 15, 2010
9:00 am, meeting at the Milford Town Office
Contact: Barbara Cox, 827-2072,

University of Maine: April 28, 2010
Contact: Scott Wilkerson, 581-3049,

The Regional Stream Cleanup started in 2006 as a way to comply with the Public Education and Participation requirements of the Maine Department of Environmental Protection Storm Water Permit. This event is coordinated by members of the Bangor Area Storm Water Group, in conjunction with the University of Maine Cooperative Extension and the Penobscot County Soil & Water Conservation District. All of the funds necessary to perform the event are raised locally through donations. No taxpayer funds are used for this program.