Stoney Point (Township of Tilbury North) Water Treatment Plant

188 Pages·1991·4.8 MB·English

by  Madill, D. S

Water Plant Optimization Study
STONEY POINT
'(TOWNSHIP OF TILBURY NORTH)
WATER TREATMENT
PLANT
June 1991
Environment
Environnement
Orrtano

ISBN 0-7729-3315-4
WATER PLANT OPTTMIZATTON STUDY
Stoney Point
(Township of Tilbury North)
Water Treatment Plant
Project No. 7-2028
June 1991
«ECfCLABU
Cette publication technique
n'est disponible qu'en anglais.
Copynght: Queen's Printer tor Ontano. 1991
This publication may be reproduced for non-commercial purposes
with appropriate attribution
PIBS 1562
log 89-2302-156

Study conducted by:
D. S. Madill
of
LA FONTAINE, COWIE, BURATTO & ASSOCIATES LIMITED
Under the direction of the
Stoney Point Project Committee
:
MOE
Gary Martin - Water Resources Branch
Rosaire Rivait - Township of Tilbury North
Paul Courey - Township of Tilbury North
Dan Perdu - Township of Tilbury North
Garth Scoggins - Township of Tilbury North
Jim Drummond - MOE Windsor Distnct Office
Al Stephens - MOE Windsor Distnct Office
Bill Gregson - MOE Project Engineering Branch
Janusz Budziakowski - MOE Environmental Approvals Branch
Gerry Sigal - R. V. Anderson Associates Limited
Address all correspondence to:
Ministry of the Environment
Water Resources Branch
W
1 St. Clair Ave. . 4th Floor
Toronto. Ontario
M4V 1K6
Please note that some of the recommendations contained in this report may have already been
completed at time of publicauon. For more information, please contact the local municipality,
or the Water Resources Branch of the Ministry of the Environment.

SUMMARY OF FINDINGS AND RECOMMENDATIONS
The purpose of the Water Plant Optimization Study is to prepare a document that
describes the present condition of a water plant with respect to equipment and operation
as well as information regarding the quantity and quality of raw and finished water. The
report attempts to make recommendations that will allow the plant to operate in an
optimum condition so that the best possible finished water quality achieved with
is
emphasis on particulate removal and disinfection. The approach to optimize the existing
is
facilities and mal<e recommendations for short term and long term improvements. It is
anticipated that the optimization study documents will be updated annually.
The Township of Tilbury North will be undertaking a project to modify and expand the
Stoney Point Water Treatment Plant. The work will include:
Flow measuring systems.
Coagulant and coagulant aid storage and feed systems.
Gravity filters complete with filter feed pumps and backwash water pumps.
Treated water storage and high pumps.
lift
Diesel engine generator.
Fluoride storage and feed system.
Renovations to existing building to provide a new chlorine room, office, lunchroom
and washroom.
Replacement of obsolete and/or inadequate equipment.
In an effort to optimize particulate removal and disinfection at the Stoney Point Plant until
the plant expansion project is completed, the following are suggested:
Physical Improvements
Make any necessary repairs and modifications on the clarifier sludge blow down
system to allow sludge to be removed more frequently qnd for shorter inten/ols qnd
therefore improve clqrifier efficiency.
Modify the alum feed system to allow alum solution to be continuously fed into the
clarifier inlet pipe.
Install a continuous flow-through turbidimeter (with recorders and alarms) to monitor
raw water, clarifier effluent and filter effluents.
Install a chlorine residual analyzer to monitor plant effluent chlorine residual.
Install an extensive alarm system for high clarifier effluent turbidity, high filter effluent
turbidity, low chlorine residual, low plant discharge pressure, and intrusion.
Install perimeter fencing in order to improve plant security.
Studies
Conduct a study to determine the time that fiitering-to-waste following a filter
baci<wash should last to ensure all the backwash water has been displaced before
putting the filter in operation.
Investigate the phenomenon of entrained air occasionally causing the water to
appear milky.
Other Recommendations
Produce an operating manual for the plant.
Reinstate the clarifier sludge sampling system and institute a comprehensive sludge
sampling program.
Investigate the feasibility of reinstating the original low lift pump control system if it
can be done without costly equipment replacement.
Consider increasing plant staff to ensure the continuous supply of acceptable water
quality.