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Water and Wastewater Plant Directory
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Mars Hill, Maine, USA
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Mars Hill Utility District
P.O Box 342
Mars Hill, Maine, 04048
USA
Contact Information:
Contact: Darren Goulet
Email:
Telephone: (207) 425-2620
Fax: (207) 425-2304
Plant Operation: Municipal
Processing: Wastewater
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Web site:
http://www.lagoonsonline.com/marshill.htm
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Plant/Process Description:
Background
Water quality studies by the Department of
Environmental Protection indicated that it was
necessary to limit the organic waste matter from
the treatment plant effluent to the Prestile
Stream during low stream flows periods in the
summer in order to maintain required dissolved
oxygen levels in the Prestile. An aerated lagoon
treatment system with seasonal effluent storage
was evaluated and identified as the most cost
effective alternative for providing secondary
treatment while also addressing present and
future water quality requirements in the region.
The wastewater treated in the aerated lagoons is
stored in a storage lagoon in the summer to
eliminate the potential of any adverse impact on
the Prestile and discharged in the winter when
the stream is capable of handling the treatment
plant effluent.
Description of Facilities
The design of the facility was completed in
October of 1991. After regulatory and funding
agency approval and securing permits, the project
was bid in January 1992. H.E. Sargent of
Stillwater, Maine began construction in May 1992,
and initial facility startup began in November
1993. Maine began construction in May 1992, and
initial facility startup began in November 1993.
All wastewater collected in the District's
system in Mars Hill and Blaine pumped to the
treatment facility from the Mill Street Pump
Station, located at the site of the old primary
treatment plant. The station has two 50 HP 8-inch
horizontal self priming centrifugal pumps, each
with a pumping capacity of 1,050 gallons per
minute. An emergency diesel fueled, stand by
engine allows continued operation during power
outages. wastewater is pumped to the treatment
system via a 10 inch diameter, 2,400 foot long
force main. As part of this project, a new pump
station was also provided at Silver Street.
The treatment system consists of a headworks
facility for screenings and grit removal; a three
cell aerated facultative lagoon; a 32 million
gallon effluent storage lagoon; and a
disinfection facility utilizing sodium
hypochlorite and sodium bisulfite for
chlorination and dechlorination. The aeration
system for the aerated lagoons and storage
lagoons consists of blowers and fine bubble
polyethylene plate diffusers. The aerated lagoons
and storage lagoon are provided with high density
polyethylene synthetic liners.
The operations building includes a control
room for monitoring the treatment process and the
pump stations, a laboratory, a blower room, a
garage and offices for district personnel. The
facility is designed to treat an average annual
daily flow of 270,000 gallons and up to 1.6
million gallons per day to accommodate peak flows.
The Mars Hill Utility District provides
water and wastewater services for
Mars Hill and Blaine.
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Owner:
Web site:
http://
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Operating Company:
Web site:
http://
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Directions:
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