CONNstruction - Winter 2015 - (Page 18)
40-Year Old Treatment
Plant Gets Royal
By Gail Allyn Short
About a decade ago, leaders of the
Mattabassett District Water Pollution
Control Facility in Cromwell, Connecticut,
wanted to address major regional wastewater treatment issues. They needed to come
up with cost-effective ways to upgrade
and renovate the aging treatment plant,
achieve improved nutrient removal and
provide reserve capacity for their member
Mattabassett's wastewater treatment
facility was almost 40 years old. It had equipment and motors that had been in operation
continually, day and night, since its original
18 / connstruction / WINTER 2015
construction in 1968. Population studies
indicated that it lacked the capacity it would
need in the future to handle sewage from the
member communities. Moreover, it needed
to reduce nitrogen discharge levels into the
Connecticut River and Long Island Sound
to comply with state regulations.
Nitrogen can act as a fertilizer for algae.
Too much algae, however, can block sunlight from grasses and deplete waterways
of oxygen. That can negatively affect both
water quality and the marine environment.
So after reviewing several proposals, in
2007, the District hired Wright-Pierce, a New
England-based engineering firm, to design
plans for renovating and upgrading the
wastewater treatment facility and lowering
its nitrogen discharge.
"These treatment facilities have to be reliable and efficient," says John Braccio, P.E.,
president of Wright-Pierce, a Middletown,
Connecticut-based firm that specializes
in designing environmental solutions.
"Wastewater treatment facilities work round
the clock for decades and ultimately, they
have to have sufficient capacity to meet
the economic development goals of their
Table of Contents for the Digital Edition of CONNstruction - Winter 2015
The Big Dam Challenge
MDC’s Office of Diversity: Promoting
Call Before You Dig – System Enhancement!
Cleaning Water, Creating Jobs
Connecticut’s New Port Authority Key to Economic Growth
40-Year Old Treatment Plant Gets Royal Flush Upgrade
What You Need to Know About WOTUS
AGC of Connecticut Industry Recognition Awards
Connecticut Environmental & Utilities Contractors Association Annual Fall Meeting
Diggers Mixers Fixers – 2015 Golf Outing!
CCPC – 2015 Summer Outing!
2015 Young Contractors Forum bus trip to the new Yankee Stadium
2015 YCF Fall Membership Meeting
Index to Advertisers/Advertiser.com Published
CONNstruction - Winter 2015