Bangor Water District

Water System Data
Source of Supply     Johnston Pump Station    Ozone Treatment Facility   Ultra Violet Treatment Facility
Standpipes     SCADA     Transmission Lines     Distribution System     Services    

Did You Know That....

  • The District pumps and treats approximately 4,300,000 gallons of water each day.

  • The water is delivered through 200 miles of pipeline ranging in size from four to 30 inches in diameter.

  • The District supplies more than 55,000 people in the greater Bangor area.

  • The water comes from Floods Pond in Otis, and is piped under the Penobscot River to reach Bangor. The Penobscot River was abandoned as a water source almost 60 years ago.

  • The District is a municipal corporation, charted by the State of Maine, and is a separate entity from the City of Bangor. The formation of the District was approved by voters in 1957. The only source of revenue is money raised through water bills, public and private fire protection, and other utility services.

Source of Supply (Return to top of page)

Rocky Shores of Floods Pond
The source of supply for the Bangor Water District is Floods Pond in Otis. The pond lies 15 miles east of Bangor in a rocky, rugged area which was scoured by the retreating glaciers. The pond supplies an excellent source of water that is clear, soft and palatable year-round. The watershed is an area of about eight square miles. The estimated dependable yield of Floods Pond is about 8.2 million gallons per day. In order to protect the source of water, the District originally acquired a strip of land 200 feet wide around the periphery of Floods Pond and Burnt Pond, and in recent years has purchased several thousand additional acres of land in the watershed area to control activities which could impact water quality.

Johnston Pump Station (Return to top of page)

Johnston Pump Station
Johnston Pump Station, located on the shores of Floods Pond, is named after Donald Johnston, a former District superintendent. The station has two intake pipes which are 36 inches in diameter. One is in approximately 13.5 feet of water, and the second is in about 23.5 feet of water. Four vertical well-type electrically driven 150 hp pumps are on site, each capable of pumping five million gallons per day. From 1957 to 1995, raw water was treated at this pump station.

Butler Ozone Water Treatment Facility  (Return to top of page)

Butler Ozone Water Treatment FacilityBeginning in 1995, chemical dosing was moved to the Butler Ozone Treatment Facility located about a mile from the original station. The water is treated with ozone and chloramines for disinfection, soda ash for pH adjustment, and fluoride for dental health. The pond has a natural fluoride content of about 0.20 ppm.

The Butler facility was named for Paul G. Butler of Bangor, who worked a total of 33 years for the City Water Department which then became the Bangor Water District. In addition to serving as chemist and assistant superintendent, Butler was responsible for much of the testing that resulted in Floods Pond being chosen as the source of supply.

Both plants have auxiliary generators to ensure lights, heat and pumping facilities during a power failure. The ozone facility is manned by operators 24 hours a day, seven days a week who control water pumpage and treatment and monitor other District storage and pump facilities through a computer network.

Ultra Violet Treatment Facility  (Return to top of page)

            An ultra-violet (UV) treatment facility at Flood
s Pond in Otis was completed and put into service in 2013.  The additional UV disinfection process is required by federal regulations relating to Cryptosporidium and provides a multi-barrier of disinfection protection ensuring safe drinking water.

            All facilities have auxiliary generators to ensure lights, heat and pumping facilities during a power failure.  The ozone facility is manned by operators 24 hours a day, seven days a week who control water pumpage and treatment and monitor other District storage and pump facilities through a computer network.


Pump Stations and Standpipes  (Return to top of page)

Hermon StandpipeThree pump stations in Bangor are used to control water flow. These are: Griffin Road, built in 1987; Perry Road, built in 1988; and Bangor International Airport, built in 1943. The latter underwent extensive renovations in 1994, and was named in honor of Harold Crane of Bangor, a retired 43-year employee and former service truck supervisor.

Water for emergency purposes is stored in seven standpipes, totaling 13,250,000 gallons. These are:

Thomas Hill--which holds 1,750,000 gallons and is a riveted wrought iron tank with a wood jacket. It is located on Thomas Hill, rises 50 feet, and is 75 feet in diameter. The tank, built in 1897, is the District's oldest standpipe. It is a national historic landmark as designated by the Register of Historic Places and the Maine Historic Preservation Commission. It is also designated an American Water Landmark by the American Water Works Association, and a civil engineering State landmark by the American Society of Civil Engineers. The lights which illuminate the top at night resemble a queen's crown, in keeping with Bangor being known as the "Queen City."

Bomarc--a welded steel tank located at the former Bomarc base which holds 1,500,000 gallons. This is the District's newest standpipe, constructed in 1986.

Essex Street--a concrete tank, the newest standpipe built in 2010 holding 3,400,000 gallons. The new tank replaced a four-million-gallon steel tank constructed in 1958 as well as a two-million-gallon steel tank built in 1933, both of which were domolished.

Hammond Street--a steel welded tank holding 5,000,000 gallons. It stands 74 feet high and is 110 feet in diameter. It was built in 1963.

Bangor International Airport--a 1,000,000 gallon standpipe which stands 100 feet high. It was built in 1944, and is painted in an orange-and-white checkerboard fashion due to its proximity to runways.

Hermon --built in 1999.  Holding 600,000 gallons, the standpipe is located on the Coldbrook Road in Hermon and was constructed as part of the Hermon service area expansion.

SCADA System (Return to top of page)

Operation of pump stations and standpipes, chemical dosing, and monitoring equipment are supported by a System Control and Data Acquisition system (SCADA) computer.  A new SCADA system was installed in 2012, to replace the original 1988 model which was no longer supported.


The computer is monitored from the engineering department on State Street in Bangor and at the Butler ozone plant.  This SCADA system helps operate all BWD transmission and distribution facilities, and is designed to continue operating in case of power loss.  The SCADA system communicates with multiple remote sites which it monitors and operates on a continuous basis.  In the event that all communications are lost, there is a small computer at each pump station designed to allow continued operation.  Many other functions such as intrusion alarms, temperature control, etc. are monitored by the SCADA system. 
Transmission Lines (Return to top of page)

The transmission facilities include a 30-inch reinforced pre- stressed concrete pipeline from Floods Pond to the Penobscot River. The main is located along the northerly side of Burnt, Little Burnt, and Snowshoe ponds, and then runs westerly to East Eddington. A 5.5-mile road owned by the District runs over the transmission line to the intersection with Rt. 9, at which point the line then runs along the northern edge of Rt. 9. At the east bank of the Penobscot River at Eddington Bend, the transmission line splits into two 24-inch pre-stressed reinforced concrete mains which pass under the river.

On the west bank of the river in Veazie, the two lines rejoin and form a single 30-inch main which runs to a control valve facility near Bangor Hydro-Electric's Graham Station, and then out Mount Hope Avenue and into the City.

Distribution System  (Return to top of page)

The distribution system has cement-lined and cast iron mains, varying in size from four to 30-inch diameter, 849,578 feet in total length.

Services   (Return to top of page)

There are approximately 11,000 services (direct water connections) which provide service to approximately 10,500 domestic accounts and 500 fire protection services.  Domestic water customers are charged based on the amount of water use measured by a meter. Fire protection is provided through 1119 public hydrants and 220 private hydrants.

            The District also provides water directly to customers in sections of Clifton, Eddington, Hermon, Orrington, Hampden, and Veazie, as well as to the Hampden Water District.

            The water provided meets all of the maximum contaminant level requirements of the Safe Drinking Water Act.  The District monitors the water quality for bacteriological contamination each working day in its own certified laboratory to ensure it meets all regulations.

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Last modified: September 30, 2016