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Drinking Water

Discover how Norfolk County ensures safe and high-quality drinking water through advanced treatment processes and rigorous quality monitoring.


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Report a water quality issue

If you are concerned about water quality, call ServiceNorfolk at 519-426-5870 or 226-NORFOLK, extension 0, or 1-877-298-5888 outside regular business hours (Monday to Friday, 8:30 a.m. to 4:30 p.m.).

Water quality concerns

Water main repairs, construction and other maintenance work in an area can cause some rust and scale products, which normally adhere to the inside of the water main, to break away. Operating fire hydrants can also cause this. The discoloured water is safe to drink, but the water may appear dirty or may stain your laundry.

If your water is yellow or rusty coloured, run your cold water tap for 5-10 minutes, or until the water clears. If the water does not run clean, locate a tap before any internal treatment equipment such as water softeners or filters. Run the tap and see if there is coloured water present. If the water is clear before the internal treatment system, the issue is likely within the internal treatment system and will require the services of a licenced tradesperson.

If there is coloured water both before and after any internal treatment systems and it does not clear through flushing the lines, call ServiceNorfolk at 519-426-5870 or 226-NORFOLK.

Water naturally varies in taste and odour at different times of the year. It may smell or taste different, especially late in summer or early fall. This is usually the result of algae growth in the lake, partially caused by the change of the season. Different types of algae can cause water to taste and smell musty. Although the taste and odour can be unpleasant, it is not considered to be a public health problem.

Refrigerating the water helps eliminate the odour and adding lemon slices or utilizing a water pitcher filter may help remove any bad taste. Water may also taste stale if it has been sitting in the incoming pipes or internal plumbing for too long. Flushing out the pipes in your home by turning on all of your taps at the same time for a few minutes may get rid of the bad taste.

Sometimes when water comes from your tap, it may appear cloudy or milky but clears up within a few minutes.

If this is the case, take a clear glass and fill it with fresh tap water. If the water appears to clear in the bottom of the glass first, the cloudiness is due to air bubbles in the water. This is completely harmless.

A series of images of a glass of water showing the water clearing from milky white to clear from the bottom up.

If the water in the glass clears from the top down or does not clear up, contact ServiceNorfolk at 519-428-5870 to report a water quality concern.

Water hardness is calculated using the calcium and magnesium concentration in the water. It is expressed as mg/L as calcium carbonate or in Grains per gallon (imperial or US). One grain per imperial gallon equals 14.25 mg/L as calcium carbonate and one grain per US gallon equals 17.1 mg/L as calcium carbonate.

Below is a summary of the average hardness in each distribution system. There is variability within the distribution system, however, so be sure to test your water if you need an exact hardness value for your home.

Town Hardness (mg/L) Hardness (grains/US gallon)
Delhi and Courtland
231.9
13.56
Port Dover
134.3
7.86
Port Rowan
111.3
6.51
 Simcoe
294.0
17.19
Waterford
216.0
12.63

Source Water Protection

Onatrio's Clean Water Act protects water supplies from contamination by developing source protection plans that protect municipal wells and surface water intakes from specific activities that may threaten drinking water. Read more about Norfolk County's source water protection

Water treatment

Norfolk County owns and operates five separate water treatment systems.

The Delhi Drinking Water System provides drinking water to the communities of Delhi and Courtland.

Delhi's potable drinking water is sourced from groundwater. Four wells are located to the east of town on Windham West Quarter Line.

To ensure the water is safe for consumption, the treatment process requires the following process steps:

The pumped raw water is initially disinfected using ultraviolet light (UV). Fluoride (hydrofluosilicic acid) is then added. Following the fluoride addition, sodium silicate is added to prevent colour releases related to iron, a natural mineral often found in groundwater. The last step of the process is the addition of sodium hypochlorite. 

The water is then pumped to the distribution system, the standpipe located in Delhi and the Courtland reservoir.

The Port Dover Drinking Water System sources its water from Lake Erie. The water works facility is located at 603 Nelson St.

The Port Dover water treatment plant is currently under construction, and the following description reviews the treatment process once it is complete.

To ensure the water is safe for consumption, the treatment process requires the following process steps:

The low-lift building pumps raw water from Lake Erie. The pumped water is dosed with polyaluminum chloride to help bring the particles together. Seasonally, during warmer water temperatures, sodium hypochlorite is also added to support zebra/mussel control.

The flow then enters the Dissolved Air Flotation (DAF) trains, where saturated air is introduced to create microbubbles. The microbubbles attach to the suspended solids, floating them to the surface, where they can be skimmed off and sent to waste.

The remaining water then flows by gravity through media filters contained within the DAF units. These filters are designed to capture any remaining fine particles.

The filtered water will then flow through ultraviolet light (UV) for primary disinfection before entering the clearwell. Pumps administer sodium hypochlorite before water is pumped into the distribution system and to your home.

The water is then pumped to the distribution system and the water tower.

The Port Rowan Drinking Water System is a surface water supply that draws its water from Lake Erie. It provides drinking water to the communities of Port Rowan and St. Williams and one private drinking water system. The water treatment plant is located at 4 Archibald Drive, Port Rowan.

To ensure the water is safe for consumption, the treatment process requires the following process steps:

The raw water pumped from Lake Erie is injected with carbon dioxide, which lowers the pH to an optimal level for coagulation. After carbon dioxide is injected, polyaluminum chloride is added to bind particles together so they can settle.

The water is then filtered through sand and anthracite filters, which capture the settable particles within the filter media. The filtered water then travels through a secondary set of filters that contain granular activated carbon (GAC) to support the removal of any taste and odour properties.

Before distribution, the water from the clearwell is disinfected with ultraviolet (UV) light, and sodium hypochlorite is added.

The water is then pumped to the distribution system, the water tower and the town of St Williams.  A booster station in St. William’s is located to increase the pressure in the distribution system.

The Simcoe Drinking Water System has three main operational facilities that treat and supply drinking water to the town of Simcoe.

To ensure the water is safe for consumption, the treatment process requires the following process steps:

The Cedar Street System is located at 396 Cedar St. The raw water is pumped from four wells and an infiltration gallery. The groundwater enters the main treatment building, where primary disinfection occurs using ultraviolet light (UV). Sodium silicate is added to sequester iron, and hydrofluosilicic acid is added. Prior to entering the distribution system, sodium hypochlorite is added as a disinfectant.

The Booster Station pumps the treated water to the distribution system and the water tower.

The Chapel Street Well system is located at 260 Chapel St. The water is sourced from one groundwater well, where sodium hypochlorite and hydrofluosilicic acid are added for disinfection. The water then flows through the chlorine contact chamber and enters the distribution system.

The Northwest Filter Plant is located on the 14th Concession and is supplied by two groundwater wells. When the groundwater reaches the plant, sodium hypochlorite, polyaluminum chloride and sodium permanganate are added. Water enters a reaction tank to bring the iron and manganese out of solution. The water then flows to the ceramic media filters, where the particles are captured within the filter media.

Chemical additions post-filtration include hydrofluosilicic acid and sodium hypochlorite. The water then flows into the Northwest Reservoir, where sodium hypochlorite is added as it is pumped to the distribution system and the water tower.

The Waterford Drinking Water System at 373 Thompson Road is sourced from two groundwater wells.

To ensure the water is safe for consumption, the treatment process requires the following process steps:

Water is pumped from the two raw water wells into the water treatment plant, where sodium permanganate, sodium hypochlorite and polyaluminum chloride are added.  This water is then directed to a reaction chamber where iron and manganese are brought out of the solution. The water then flows to the ceramic media filters, where the particles are captured within the filter media. The filtered water enters a reservoir where sodium hypochlorite is added for disinfection.

The water is then pumped to the distribution system and the standpipe.

Water Distribution System

Treated water is pumped through the central water distribution system to residential homes and businesses in:

  • Simcoe
  • Delhi and Courtland
  • Port Dover
  • Port Rowan and St. Williams
  • Waterford

Norfolk's water distribution system includes approximately:

  • 303,912 metres of water mains
  • 1,460 fire hydrants
  • 2,974 water valves
  • 15,183 water meters

Learn more about how water is treated before entering the distribution system.

Water distribution system maintenance

Through preventative maintenance, Norfolk takes a proactive approach to maintaining our water distribution system to address issues before they cause a major problem or breakdown, which can result in significant cost savings.

Many preventative maintenance programs use GIS technology to track progress and report problems. Some of the key programs that distribution crews are involved with include:

  • Watermain flushing: Hydrants are flowed in a controlled manner and in one direction to help remove sediment that collects in the water mains.
  • Hydrant maintenance: Conducted year-round, including frost checks during the year's colder months.
  • Exercising valves: Valves installed all over the water distribution system are exercised to ensure functionality and identify deficiencies.

Drinking Water Quality Management

As required by the Drinking Water Quality Management System, Norfolk County Council and Mayor, as the designated owners, endorsed the Operational Plan and the Quality Management System Policy by signing the Commitment and Endorsement statement, which is one of the elements of the Operational Plan, on July 25, 2011.

As a result of the Walkerton Inquiry and the proclamation of section 33 of the Safe Drinking Water Act, the Ministry of the Environment requires that all municipal residential drinking water systems operating authorities be accredited through the new Municipal Drinking Water Licensing Program.  

The requirements for issuance of a license are:

  • A drinking water works permit (replacing a Certificate of Approval)
  • A permit to take water (currently in place)
  • An approved Operational plan
  • An accredited operating authority
  • An approved Financial plan (submitted 6 months after license is obtained)

To become an accredited Operator, Norfolk County’s Public Works and Environmental Services Department was required to submit applications for Drinking Water Works Permits, Licenses, and Operational Plans for each of the five municipal drinking water systems operated by the County by May 1, 2009.  

The Ministry of the Environment reviewed and accredited the operational plans by a third-party accreditation body, the Canadian General Standards Board. A Certificate of Accreditation was issued on February 17, 2010. 

The accreditation was based on the operating authority's quality management system, which meets the drinking water quality management standard requirements. The Operational Plans describe how the requirements of the Quality Management Standard are achieved.

The accreditation body reviewed the submitted operational plans and performed system audits. It will also perform on-site verification audits to verify conformance to the drinking water quality management system.

A Quality Management System can be defined as the policy and associated organizational structures, procedures, responsibilities and evaluation measures that ensure the capability of delivering a product to specific standards. Modern industry use of Quality Management Systems has steadily increased over the last 30 years since the development of the first ISO standard in 1986.

Whether implemented voluntarily or as a requirement of suppliers to large manufacturers, Quality Management Systems have repeatedly proven beneficial in terms of accountability, quality control, efficiency and productivity.

The purpose of the quality management approach in drinking water is to protect public health by achieving consistent good practices in the management and operation of a water system.

The Drinking Water Quality Management System approach emphasizes the importance of:

  • A proactive or preventative approach rather than reactive management strategies to identify and manage risks to public health
  • The establishment and documentation of management procedures
  • Conformance to these procedures
  • Continuous improvement of the quality management system

Private wells and cisterns

Many rural residents rely on private wells and cisterns for their drinking water. Learn more about water testing

Contact Us

ServiceNorfolk

50 Colborne Street South
Simcoe, Ontario
N3Y 4H3

Phone: 519-426-5870 or 226-NORFOLK, extension 0

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