Transcript Borough of Zelienople Water Treatment

Zelienople Water Department
Sources and Treatment
Our Water Sources
Scholars Run
Water Sources
 Scholars
Run
The primary source of our drinking water.
This stream is fed by Perry Lake located
north on RT 19. Scholars Run has
drainage area of approximately seven
square miles. This source is capable of
supplying water throughout the year
providing no drought conditions occur.
 Marion
Township
Water is purchased from Marion Township
during periods of drought.
Zelienople Water Treatment
The Water Treatment Plant in Zelienople is a surface
water plant that utilizes conventional filtration to
produce its drinking water and supply water for fire
protection.
Prior to 1923 Zelienople’s water distribution system was
used strictly for fire protection. In 1923 the first
water treatment facility was built. The F.B. Leopold
Co. was contracted to build a water filtration plant
along the Connoquenessing Creek. Although modified
in the 1960’s and rebuilt several times the two
original filters are still being used today.
Borough of Zelienople
Water Treatment

Raw Water
The Water Treatment
Plant uses 715,000
gallons of raw,
untreated, water each
day of operation.
Each day the treatment
process recycles about
15 percent of this flow
back to its raw water
storage.
The Treatment Process
 Flocculation
Raw water is fed to a two- stage mixing
chamber were it is treated with a
coagulant, chlorine and an oxidizer to
form floc particles, control taste & odor
problems and begin disinfecting.
The Treatment Process

Sedimentation
After the flocculation step is complete, the
water enters the sedimentation basin were
the larger floc particles settle out this process
takes 2.5 hours.
The Treatment Process

Clarification
This process is a continuation of the settling
process where smaller particles settle. This
process takes an additional 2 hours to
complete.
The Treatment Process

Filtration
The final stage of the treatment of raw water.
After Clarification is complete the water then
passes through one of three filters at a rate
of 200 GPM/filter to remove the remaining
particles. The water leaving the filter is now
awaiting further disinfection.
The Treatment Process

Disinfecting
Prior to entering the distribution system the
water is disinfected with chlorine. This
process ensures that your drinking water is
free from all bacteria and virus. This process
takes several hours to complete.
The Treatment Process

Corrosion Control
Prior to entering the distribution system, the pH
of the water is adjusted to reduce corrosion
of certain household plumbing. The use of
lead soldier and leaded brass was common
before it was banned. Water samples are
taken from a cross-section of our community
and tested for lead and copper content.
Water Treatment
SCADA
Supervisory Control And Data Acquasition
Treatment parameters are entered in a
computer which monitors the treatment
process. Alarms notify operators if changes
are to be made.
Distribution System



The water distribution system consists of
109,500 feet or 20.7 miles of pipe, ranging in
size from 4” to 12”.
2.5 million gallons of potable water storage,
used for both water supply and fire
protection.
151 fire hydrants are used for fire protection
and flushing the distribution system.