Wiarton Water Treatment Plant Annual Report 2005

Drinking-Water Systems Regulation O. Reg. 170/03

Part III Form 2
Section 11. ANNUAL REPORT.

Drinking-Water System Number: 220002681
Wiarton Water Treatment Plant
Drinking-Water System Name:
Town of South Bruce Peninsula
Drinking-Water System Owner:
Large Municipal Residential
Drinking-Water System Category:
Jan 1/05 to Dec 31/05
Period being reported:

Complete if your Category is Large Municipal Complete for all other Categories.
Residential or Small Municipal Residential

Does your Drinking-Water System serve Number of Designated Facilities served:
more than 10,000 people? Yes [ ] No [ X ]

Is your annual report available to the public Did you provide a copy of your annual
at no charge on a web site on the Internet? report to all Designated Facilities you
Yes [ X ] No [ ] serve?
Yes [ ] No [ ]
Location where Summary Report required
under O. Reg. 170/03 Schedule 22 will be Number of Interested Authorities you
available for inspection. report to:
Town of South Bruce Peninsula
Did you provide a copy of your annual
315 George Street
report to all Interested Authorities you
Wiarton, Ontario
report to for each Designated Facility?
N0H 2T0
Yes [ ] No [ ]
519 534 1400

Note: For the following tables below, additional rows or columns may be added or an
appendix may be attached to the report

List all Drinking-Water Systems (if any), which receive all of their drinking water from
your system:
Drinking Water System Name Drinking Water System Number
Oxidant Water 260004215

Did you provide a copy of your annual report to all Drinking-Water System owners
that are connected to you and to whom you provide all of its drinking water?
Yes [ ] No [ ]

Drinking-Water Systems Regulations Page 1 of 7
Part III ­ Form 2 (PIBS 4435E Version January 2005)
Drinking-Water Systems Regulation O. Reg. 170/03

Indicate how you notified system users that your annual report is available, and is free
of charge.
[ X ] Public access/notice via the web
[ X ] Public access/notice via Government Office
[ ] Public access/notice via a newspaper
[ ] Public access/notice via Public Request
[ ] Public access/notice via a Public Library
[ ] Public access/notice via other method

Describe your Drinking-Water System
Class 2 Distribution, Class 3 Treatment

There are two raw water intakes, a main intake, and back-up intake. The main raw water
polyethylene intake pipe, 450 mm in diameter, is approximately 180 m long, east of water
treatment plant. It is located in Colpoy's Bay (Georgian Bay) with an intake structure composed
of cement jute bags and steel gabions. The backup raw water 450 mm diameter polyethylene
intake pipe, approximately 45 m long, east of water treatment plant, is also located in Colpoy's
Bay (Georgian Bay), with an intake structure composed of cement jute bags and steel gabions.
Both intakes are an approximate depth of 8 meters.

Two polyethylene lines, each 3/4 ­inch diameter, are used to supply sodium hypochlorite to the
intake diffuser for zebra mussel control. These lines are located within the intake pipes extending
from the water treatment plant to the intake structures, one line fore each intake.

A polyethylene line, also located within each of the intake pipes, is used to supply a raw water
sample (prior to chlorination for zebra mussel control) to the laboratory for testing purposes.

A raw water pumping station equipped with four 31.3 L/s pumps at 9.8 m total dynamic head
(TDH) are used to draw water from a two-cell raw water well. Three pumps usually run at any
given time. Within the raw water well, a traveling screen is installed rated at a capacity of 9.391
m3/d and one bar screen (used as a standby).

Two high lift pumps each rated at 59.5 L/s at 77.7 TDH (one duty, one standby), are used to
provide water to the distribution system and standpipe. Each pump is connected to a common
header with one flow meter.

The water treatment plant building is approximately 26.7 m by 18.2 m and contains the low lift
and high lift pumping stations, flocculation tanks, filters, chemical storage and pumping devices,
standby diesel generator, office, laboratory, control and instrumentation equipment, washroom
and utility rooms. The CofA specifies a rated treatment capacity not to exceed 62.3 L/s (allows
for the production of 5,400 cubic meters per day if running continuously).

Polyaluminum chloride is added and mixed in an in-line mechanical mixer on the raw water line.
It is rated at a capacity of 5,400 m3/d.

Drinking-Water Systems Regulations Page 2 of 7
Part III ­ Form 2 (PIBS 4435E Version January 2005)
Drinking-Water Systems Regulation O. Reg. 170/03

There are two flocculation tanks each with a total volume of approximately 104 m3, designed to
provide hydraulic mixing for flocculation. There are no clarifiers used in the treatment process.

Two direct filtration, dual-media, gravity filters each rated at 2,700 cubic meters per day (31.2
litres per second) and each having a total surface area of approximately 13.5 m2, are used to
filter the floc. Anthracite and sand are the media used. The rated capacity of the plant is based on
the design filtration rate of the filters (8.35 cubic meters of water per square meter of media per
hour).

Each filter is equipped with a 156 L/s filter backwash pump, an agitator and an underdrain
system. Each filtered water line has an online turbidimeter meter. The filtrate is chlorinated again
prior to the water entering the clearwell.

Filter-to-waste piping connects to the filter effluent piping of both filters and allows filtered
water back to discharge to the raw water well during filter ripening.

There is one un-baffled clearwell divided into two compartments (Cell No 1, 484 m3 and Cell
No 2, 267 m3) with a total useable water storage volume of approximately 751 m3.

A sodium hypochlorite disinfection system provided both primary and secondary disinfection. It
consists of four metering pumps each rated at 6 L/hr feed 12% sodium hypochlorite to four
injection points; 1) marine intake, crib for zebra mussel control (Pump NO 1), 2) low lift pump
well for prechlorination (Pump No 2), 3) filter effluent pipes for post chlorination (Pump No 3),
and 4) high lift pump header for chlorine residual control (Pump No 4). The sodium hypochlorite
storage tank has a capacity of 20,543 L, and normally filled to around 5,000 L at any given time.
The free chlorine residual in the treated water leaving the plant provided a method for secondary
disinfection.

An activated carbon feed system for taste and odour control is installed and consists of a
prefabricated package unit comprised of a feed hopper, bag loader, volumetric feeder, solution
tank and explosion proof control panel and instrumentation, two metering pumps (one duty, one
standby) and a chemical feed line to the in-line mixer. To date, the activated carbon system has
not been used.

A coagulant feed system for enhancing flocculation is installed and consists of a 11,360 L
capacity storage tank equipped with one metering pump, capable of pumping approximately 6
L/hr.

A sodium bisulphate feed system is installed and consists of a storage tank equipped with two
metering pumps rated at 14L/hr, one feeding to the in-line mixer ahead of the flocculation tanks
or to the raw water well either for de-chlorination or pH correction, the other one feeding to the
surge tank ahead of the wastewater sedimentation tank for de-chlorination.

Drinking-Water Systems Regulations Page 3 of 7
Part III ­ Form 2 (PIBS 4435E Version January 2005)
Drinking-Water Systems Regulation O. Reg. 170/03

A polymer feed system is installed for enhancing settling in the wastewater sedimentation tank
consisting of a storage tank equipped with one chemical metering pumps rated at 3.8 L/hr,
injected at the static mixer on transfer pump.

Tow backwash wastewater surge tanks are used to initially collect the suspend solids that
originated on the turbidity filters. Each tank has a total volume of approximately 256 m3 and
equipped with three submersible mixers and two transfer pumps that discharge to the in-line
blender ahead of the wastewater sedimentation tank. A filter backwash wastewater sedimentation
tank is also used and has a total volume of approximately 86 m3. Tow sludge withdrawal pumps
are used to discharge the sediment to the local sanitary sewer and a supernatant decant pipework
discharges to Colpoy's Bay after being dechlorinated in the sedimentation tank.

A 225 kW diesel generator set (Kohler Poser Systems Model 250ROZD91), in a separate room
of the water treatment plant building is used to provide emergency standby power to operate the
entire plant. It has two 1,110 L fuel tanks, each joined together through a common supply line
and capable of providing an estimated 26 hours of continuous operation (assuming a diesel
consumption rate of 85 L/hour at 100% output) if the tanks are full.

Monitoring equipment (SCADA) includes on-line turbidity and chlorine analyzers, raw water
flow meter, two filter effluent flow meters, finished water flow meter, filter wash water flow
meter, and wash water turbidity analyzer.

Autodialer equipment is linked to alarm outputs from the monitoring of the clearwell high/low
level, flocculated water conduit, overflow, filter over flow, low filters, flocculation tanks
overflow, raw water high/low level chlorine residual, intrusion alarm, high building temperature,
smoke alarms, building flood, low diesel fuel tank level and diesel failure.

The booster station consists of one floor and encompasses all the works including a 7.5 hp duty
pump and tree 25 hp fire pumps. The booster station has a rated capacity of 2,724 L per minute.
A diesel generator is installed in the booster station facility. It has a power rating of 80 kW and is
capable of keeping the booster station operating during power outages.

The booster station services a pressure zone in the area of Gould St., Daniel St., and Jenny St.
Homes at an elevation higher than approximately 212 meters above sea level are served by the
booster station.

An elevated storage tank with a capacity of 2,895 m3 (637,000 Imperial Gallons) is located on
Gould Street adjacent to the booster station.

Two ultraviolet (UV) disinfection reactors (Trojan UV Swift) are also used to provide primary
disinfection at the plant. They are located on the high lift discharge header, each unit designed to
provide a minimum pass through UV dose of 40 mJ/cm2 at a minimum UV transmittance (UVT)
of 90% and at a maximum flow rate of 87.4 L/s. Reactors are manually switched between duty
and stand-by and only one unit operated at any given time.

Drinking-Water Systems Regulations Page 4 of 7
Part III ­ Form 2 (PIBS 4435E Version January 2005)
Drinking-Water Systems Regulation O. Reg. 170/03

The main plant programmable logic controller is electronically connected to each of the two UV
units for communication purposes. Under normal automatic operation, water is not pumped from
the plant unless the duty UV unit is on and operational (dose is greater than 40 mJ/cm2, UVT is
greater than or equal to 90%). During plant start-up, the programmable logic controller signals
the duty UV unit to warm up, and the warm up sequence takes about three minutes. Once the
warm up sewuence is complete, a high lift pump starts and water is pumped form the clear well
through the duty UV unit out to the distribution system. The duty UV light continues to operate
as long as the high lift pump is running.

During plant shudown, the programmable logic controller stops the high lift pump, and once it is
stopped, the duty UV unit is signaled to shut down. The UV shut down sequence involves
cooling of the UV lamps and takes about three minutes.

In situations where the duty UV unit fails during start-up, the high lift pump will not start. If the
duty UV unit fails during normal operations or shutdown, the programmable logic controller
signals the high lift pumps to stop and the UV unit cooling sequence is automatically initiated.
The valve isolating the distribution system closes after about 30 seconds, the time required for
the high lift pump to shut down. During this 30-second interval, the UV intensity and dosage
from the duty UV unit is still high enough for adequate disinfection.

The Wiarton distribution system has approximately 1062 service connections and serves an
estimated population of 2,300 residents. There are approximately 23.5 kilometers of water mains
and approximately 87 fire hydrants. The system currently comprises of approximately 54% PVC
piping and 46% cast iron and ductile iron (tougher than cast iron). Four thousand to 5,000 meters
of cast iron piping are reportedly still present.

The Wiarton Water Treatment Plant also serves the Oxenden Distribution System to the east of
the Town of Wiarton. This distribution system is owned by the Township of Georgian Bluffs. It
currently serves a residential area consisting of seasonal and permanent homes with 171 service
connections and 23 vacant lots with an estimated population of less than 500 consumers.

List all water treatment chemicals used over this reporting period
Sodium Hypochlorite 12%
Polyaluminum Chloride

Were any significant expenses incurred to?
[X] Install required equipment
[X] Repair required equipment
[X] Replace required equipment

Drinking-Water Systems Regulations Page 5 of 7
Part III ­ Form 2 (PIBS 4435E Version January 2005)
Drinking-Water Systems Regulation O. Reg. 170/03

Please provide a brief description and a breakdown of monetary expenses incurred
Item

Replace variable speed drive pump at Tower
Trojan UV Maintenance Package
Sodium Hypo day tank
Maintenance Package for Rotork Actuators
Diesel and fuel tank replacement

Provide details on the notices submitted in accordance with subsection 18(1) of the Safe
Drinking-Water Act or section 16-4 of Schedule 16 of O.Reg.170/03 and reported to
Spills Action Centre
No Notices
required to be
submitted in
2005

Microbiological testing done under the Schedule 10, 11 or 12 of Regulation 170/03,
during this reporting period.
Number Range of E.Coli Range of Total Number Range of
of Or Fecal Coliform of Background/HPC
Samples Results Results Background/ Results
(min #)-(max #) (min #)-(max #) HPC Samples (min #)-(max #)

50 0-11 0-48 3 0-0
Raw
57 0-0 0-0 51 0-3
Treated
151 0-0 0-0 108 0-3
Distribution

Operational testing done under Schedule 7, 8 or 9 of Regulation 170/03 during the
period covered by this Annual Report.
Number of Range of Results
NOTE: For continuous
Grab (min #)-(max #)
monitors use 8760 as the
Samples
number of samples.
Turbidity 8760 0.01 ­ 0.77
Chlorine 8760 0.27 ­ 1.57
Fluoride (If the
DWS provides
fluoridation)

NOTE: Record the unit of measure if it is not milligrams per litre.

Drinking-Water Systems Regulations Page 6 of 7
Part III ­ Form 2 (PIBS 4435E Version January 2005)
Drinking-Water Systems Regulation O. Reg. 170/03

Summary of additional testing and sampling carried out in accordance with the
requirement of an approval, order or other legal instrument.
Date of legal instrument Parameter Date Sampled Result Unit of Measure
issued
mg/L
C of A Suspended Quarterly Annual
5170-5YPP4N Solids Average
(composite) 4.0

Summary of Inorganic parameters tested during this reporting period or the most
recent sample results
Parameter Sample Date Result Value Unit of Measure Exceedance
Jan. 18/05 <0.6 ug/L No
Antimony
Jan. 18/05 <2 ug/L No
Arsenic
Jan. 18/05 13 ug/L No
Barium
Jan. 18/05 20 ug/L No
Boron
Jan. 18/05 <0.1 ug/L No
Cadmium
Jan. 18/05 <3 ug/L No
Chromium
Jan. 18/05 <0.1 ug/L No
Lead (DDW)
Jan. 18/05 <0.1 ug/L No
Mercury
Jan. 18/05 <3 ug/L No
Selenium
April 13/04 4.9 mg/L No
Sodium
Jan. 18/05 0.05 ug/L No
Uranium
Jan. 19/04 0.08 mg/L No
Fluoride
Jan. 18/05 <0.005 mg/L No
Nitrite
Jan. 18/05 0.355 mg/L No
Nitrate

Summary of Organic parameters sampled during this reporting period or the most
recent sample results
Parameter Sample Result Unit of Exceedance
Date Value Measure
Jan. 18/05 ug/L No
Alachlor <0.11
Jan. 18/05 ug/L No
Aldicarb <0.3
Jan. 18/05 ug/L No
Aldrin + Dieldrin <0.067
Jan. 18/05 ug/L No
Atrazine + N-dealkylated metobolites <0.12
Jan. 18/05 ug/L No
Azinphos-methyl <0.21
Jan. 18/05 ug/L No
Bendiocarb <0.13
Jan. 18/05 ug/L No
Benzene <0.36
Jan. 18/05 ug/L No
Benzo(a)pyrene <0.004
Jan. 18/05 ug/L No
Bromoxynil <0.094
Jan. 18/05 ug/L No
Carbaryl <0.16
Jan. 18/05 ug/L No
Carbofuran <0.37
Jan. 18/05 ug/L No
Carbon Tetrachloride <0.34
Jan. 18/05 ug/L No
Chlordane (Total) <0.11
Jan. 18/05 ug/L No
Chlorpyrifos <0.18

Drinking-Water Systems Regulations Page 7 of 7
Part III ­ Form 2 (PIBS 4435E Version January 2005)
Drinking-Water Systems Regulation O. Reg. 170/03

Jan. 18/05 ug/L No
Cyanazine <0.18
Jan. 18/05 ug/L No
Diazinon <0.081
Jan. 18/05 ug/L No
Dicamba <0.17
Jan. 18/05 ug/L No
1,2-Dichlorobenzene <0.56
Jan. 18/05 ug/L No
1,4-Dichlorobenzene <0.25
Jan. 18/05 ug/L No
Dichlorodiphenyltrichloroethane (DDT) + <0.14
metabolites
Jan. 18/05 ug/L No
1,2-Dichloroethane <0.32
Jan. 18/05 ug/L No
1,1-Dichloroethylene <0.52
(vinylidene chloride)
Jan. 18/05 ug/L No
Dichloromethane <1.17
Jan. 18/05 ug/L No
2-4 Dichlorophenol <0.15
Jan. 18/05 ug/L No
2,4-Dichlorophenoxy acetic acid (2,4-D) <0.11
Jan. 18/05 ug/L No
Diclofop-methyl <0.13
Jan. 18/05 ug/L No
Dimethoate <0.12
Jan. 18/05 ug/L No
Dinoseb <0.084
Jan. 18/05 ug/L No
Diquat <1
Jan. 18/05 ug/L No
Diuron <0.087
Jan. 18/05 ug/L No
Glyphosate <6
Jan. 18/05 ug/L No
Heptachlor + Heptachlor Epoxide <0.11
Jan. 18/05 ug/L No
Lindane (Total) <0.056
Jan. 18/05 ug/L No
Malathion <0.091
Jan. 18/05 ug/L No
Methoxychlor <0.14
Jan. 18/05 ug/L No
Metolachlor <0.092
Jan. 18/05 ug/L No
Metribuzin <0.12
Jan. 18/05 ug/L No
Monochlorobenzene <0.46
Jan. 18/05 ug/L No
Paraquat <1
Jan. 18/05 ug/L No
Parathion <0.18
Jan. 18/05 ug/L No
Pentachlorophenol <0.15
Jan. 18/05 ug/L No
Phorate <0.11
Jan. 18/05 ug/L No
Picloram <0.20
Jan. 18/05 ug/L No
Polychlorinated Biphenyls(PCB) <0.04
Jan. 18/05 ug/L No
Prometryne <0.23
Jan. 18/05 ug/L No
Simazine <0.15
05 annual ug/L No
THM (DDW) 35.5
(NOTE: show latest annual average) average
Jan. 18/05 ug/L No
Temephos <0.31
Jan. 18/05 ug/L No
Terbufos <0.12
Jan. 18/05 ug/L No
Tetrachloroethylene <0.48
Jan. 18/05 ug/L No
2,3,4,6-Tetrachlorophenol <0.14
Jan. 18/05 ug/L No
Triallate <0.10
Jan. 18/05 ug/L No
Trichloroethylene <0.54
Jan. 18/05 ug/L No
2,4,6-Trichlorophenol <0.25
2,4,5-Trichlorophenoxy acetic acid (2,4,5-T) Jan. 18/05 ug/L No
<0.14

Drinking-Water Systems Regulations Page 8 of 7
Part III ­ Form 2 (PIBS 4435E Version January 2005)
Drinking-Water Systems Regulation O. Reg. 170/03

Jan. 18/05 ug/L No
Trifluralin <0.12
Jan. 18/05 ug/L No
Vinyl Chloride <0.08

List any Inorganic or Organic parameter(s) that exceeded half the standard prescribed in
Schedule 2 of Ontario Drinking Water Quality Standards.
Parameter Result Value Unit of Measure Date of Sample
N/a

(Only if DWS category is large municipal residential, small municipal residential, large
municipal non residential, non municipal year round residential, large non municipal non
residential)

Drinking-Water Systems Regulations Page 9 of 7
Part III ­ Form 2 (PIBS 4435E Version January 2005)