Our Wastewater Facility

Napanee Water Pollution Control Plant

The Napanee Water Pollution Control Plant (WPCP) is a conventional activated sludge process, with an average day design flow rate of 9087 m3 /d, and a peak flow rate of 21,370 m3 /d. All treated wastewater is disinfected and discharged to the Napanee River. Bacteriological testing is conducted each week to evaluate the effectiveness of the disinfection process. The WPCP must meet stringent effluent requirements set by the Ministry of Environment, Conservation and Parks as well as the Bay of Quinte Remedial Action Plan. To learn more about our processes, take a look at our Annual WPCP Report.

Napanee sewage treatment plant

Frequently Asked Questions

What should I do if my sewer backs up?

First, call a plumber. We suggest calling several different plumbers to provide you with quotes for their services and that you choose one with whom you feel comfortable. The plumber should be able to clear the sewer. Then, call the Town to schedule a camera inspection through Todd Harvey, Director of Utilities at 613-776-1138. With our camera equipment, we can determine what the problem is and where in the pipe it is located.

What causes sewer blockages?

One of the most frequent causes of sewer problems is tree roots. Sometimes materials that have been put down the drain cause the blockage. These materials include grease, inorganic products and cat litter.

Who is financially responsible for the sewer?

Our customers are financially responsible for the water and wastewater service pipes in the ground from the property line into the building. Repairs to this section of the pipe are the customer's responsibility. During the camera inspection, if we discover that the problem in the pipe is not on the customer's property, but rather on the Town of Greater Napanee property, the Town is responsible for the repair and will reimburse the cost of the plumber to the customer, as well as waive the camera inspection fee. If the blockage is on the Town of Greater Napanee property but discover that the cause originated from the home or business (eg. Flushing inappropriate materials), the cost of the repairs may still be charged to the customer. Take a look at this pipe ownership diagram to help you visualize. 

How can I help reduce inflow and infiltration?

You can help us reclaim lost wastewater treatment capacity by ensuring that sump pumps and roof leaders at your home or business are not discharging into the sanitary sewer.

If your home or business has a sump pump connected to the sanitary sewer, please contact Todd Harvey, Director of Utilities, at 613-776-1138 to discuss alternative options.

About the Town's collection systems 
The Town of Greater Napanee has separate storm water and wastewater (sanitary) collection systems. Storm water is generally surface water runoff resulting from heavy falls of rain or snow. Wastewater is spent or used water, usually with dissolved or suspended solids, discharged from homes, commercial establishments and/or industries. Unfortunately, improper connections, broken pipes, or faulty joints in the sanitary sewers can result in ground and storm water entering into the sanitary system. This misdirected flow, collectively referred to as inflow and infiltration, is problematic because it occupies treatment capacity at the Water Pollution Control Plant that could otherwise be used to treat sanitary wastewater
Roof leaders and downspouts 

Check out your roof leaders and downspouts. If they go below grade, it is possible that you are connected to the sanitary sewer. If so, you should take the necessary steps to disconnect it. Consider adding a rain barrel which will allow you to collect and store the water from your roof for your lawn and garden. Or, where feasible, add extensions to the downspout to discharge the water to a splash pad or grassy area where the water can infiltrate into the ground naturally. 

These reductions will protect homes and businesses from sanitary sewer backups, protect the environment from harmful sewer overflows and bypasses, and will save money. Thank you for your help in eliminating these unnecessary connections to our sanitary sewers.

Please view our sewer use by-law for more information.

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