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Wastewater Systems Effluent Regulations: registry of temporary and transitional authorizations

Introduction

The Wastewater Systems Effluent Regulations set national minimum effluent quality standards. These standards can be met through secondary-level wastewater treatment.

There are three types of regulatory authorizations. These authorizations allow the wastewater treatment systems to release wastewater that does not meet the effluent quality standards of the Regulations. Each authorization is granted for a specific purpose and for a limited duration.

The three types of authorizations are:

Registry of transitional authorizations

A transitional authorization is for communities with wastewater systems not designed to meet the regulatory standards. It allows an extension to upgrade a wastewater system by the end of 2020, 2030 or 2040. The extension deadline is based on environmental risk. It also sets site specific effluent standards and monitoring and reporting requirements.

The list of transitional authorizations issued under the Regulations is available in Power BI and in the table below. To access the Power BI, please go to Registry of transitional authorizations in Power BI. Copies of the authorizations are also available upon request to eu-ww@ec.gc.ca. 

Transitional authorization status:

Completed - means that a wastewater system has been upgraded to meet the Wastewater Systems Effluent Regulations (WSER) effluent quality standards or has been decommissioned

Expired - means extension deadline has passed and the transitional authorization is no longer valid

In progress - means that the wastewater system still has an active transitional authorization in place

Owner Name Wastewater System Name City Province Extension Deadline Status of Authorization
Ahousaht First Nation Ahousaht Pump Station Ahousaht British Columbia December 31, 2020 Completed
System decommissioned
New plant built in 2022 (Ahousaht Water Treatment Plant)
Canadian Nuclear Laboratories Chalk River Laboratories Chalk River Ontario December 31, 2040 Completed
System upgraded in 2019
Cape Breton Regional Battery Point Treatment Plant Sydney Nova Scotia December 31, 2040 In progress
Cape Breton Regional Donkin Sewer Shed - D1 Donkin Nova Scotia December 31, 2040 In progress
Cape Breton Regional Glacebay - GB1 Glacebay Nova Scotia December 31, 2040 In progress
Cape Breton Regional Glacebay - GB2 Glacebay Nova Scotia December 31, 2040 In progress
Cape Breton Regional Glacebay - GB4 Glacebay Nova Scotia December 31, 2020 Expired
Cape Breton Regional Glacebay - GB5 Glacebay Nova Scotia December 31, 2040 In progress
Cape Breton Regional Glacebay - GB6 Sydney Nova Scotia December 31, 2020 Expired
Cape Breton Regional Glacebay - GB7 Sydney Nova Scotia December 31, 2040 In progress
Cape Breton Regional Glacebay - GB8 Glacebay Nova Scotia December 31, 2020 Expired
Cape Breton Regional Louisbourg - L1 Louisbourg Nova Scotia December 31, 2040 In progress
Cape Breton Regional Louisbourg - L2 Louisbourg Nova Scotia December 31, 2040 In progress
Cape Breton Regional New Victoria Sewer Shed New Victoria Nova Scotia December 31, 2040 In progress
Cape Breton Regional New Waterford - NW1 New Waterford Nova Scotia December 31, 2040 In progress
Cape Breton Regional New Waterford - NW2 New Waterford Nova Scotia December 31, 2040 In progress
Cape Breton Regional North Sydney, Sydney Mines, Florence (North Division) - ND2 Sydney Mines Nova Scotia December 31, 2040 In progress
Cape Breton Regional Port Morien Sewer Shed Port Morien Nova Scotia December 31, 2020 Completed
System decommissioned
New plant built in 2024 (Port Morien WWTP)
Cape Breton Regional Westmount / Coxheath - C1 Edwardsville Nova Scotia December 31, 2030 Completed
System decommissioned
New plant built in 2024 (Sydney Harbour West)
Cape Breton Regional Westmount / Coxheath - C2 Edwardsville Nova Scotia December 31, 2040 Completed
System decommissioned
New plant built in 2024 (Sydney Harbour West)
Cape Breton Regional Westmount / Coxheath - C3 Edwardsville Nova Scotia December 31, 2030 Completed
System decommissioned
New plant built in 2024 (Sydney Harbour West)
Capital Regional District Clover Point Pump Station Victoria British Columbia December 31, 2020 Completed
System decommissioned
New plant built in 2020 (McLoughlin Point Wastewater Treatment Plant)
Capital Regional District Macaulay Point Pump Station Victoria British Columbia December 31, 2020 Completed
System decommissioned
New plant built in 2020 (McLoughlin Point Wastewater Treatment Plant)
City of Brooks City of Brooks Brooks Alberta December 31, 2040 In progress
City of Owen Sound Owen Sound WPCP Owen Sound Ontario December 31, 2020 Completed
System upgraded in 2017
City of St. John's Riverhead Wastewater Treatment Facility St. John's Newfoundland and Labrador December 31, 2020 Expired
City of Thompson Thompson Sewage Treatment Plant Thompson Manitoba December 31, 2020 Completed
System upgraded in 2020
City of Weyburn Weyburn Lagoon Weyburn Saskatchewan December 31, 2030 Completed
System upgraded in 2019
Corp. of the City of Timmins Mattagami Water Pollution Control Plan Timmins Ontario December 31, 2020 Completed
System upgraded in 2016
Correctional Service Canada ATL Region - Dorchester Institution Wastewater Treatment System Dorchester New Brunswick December 31, 2040 Completed
Upgraded in 2018
District of Tofino First Street Comminutor Tofino British Columbia December 31, 2020 Completed
System decommissioned
New plant built in 2024 (District of Tofino Wastewater Treatment Plant)
Gingolx Village Government Gingolx Waste Water Treatment Plant Gingolx British Columbia December 31, 2020 Completed
System upgraded in 2021
Greater Moncton Wastewater Commission GMWC Wastewater Treatment Facility Riverview New Brunswick December 31, 2020 Completed
System upgraded in 2020
Greater Vancouver Sewerage and Drainage District Iona Island Wastewater Treatment Plant Richmond British Columbia December 31, 2030 In progress
Greater Vancouver Sewerage and Drainage District Lions Gate Wastewater Treatment Plant West Vancouver British Columbia December 31, 2020 Expired
Halifax Regional Water Commission Dartmouth Wastewater Treatment Facility Dartmouth Nova Scotia December 31, 2040 In progress
Halifax Regional Water Commission Halifax Wastewater Treatment Facility Halifax Nova Scotia December 31, 2040 In progress
Kitasoo First Nation Kitasoo Septic Tank Klemtu British Columbia December 31, 2030 In progress
Municipality of the Town of Yarmouth Town of Yarmouth Wastewater Treatment Plant Yarmouth Nova Scotia December 31, 2040 In progress
Regional District of Kootenay Boundary CPCC Trail British Columbia December 31, 2040 In progress
Regional District of Nanaimo Greater Nanaimo Pollution Control Centre Nanaimo British Columbia December 31, 2030 Completed
System upgraded in 2021
Regional District of Nanaimo Nanoose Bay Pollution Control Centre Nanoose British Columbia December 31, 2040 In progress
Regional Municipality of Wood Buffalo Anzac Sewage Lagoon Anzac Alberta December 31, 2030 In progress
The Corporation of The Township of Red Rock Red Rock Wastewater Plant Red Rock Ontario December 31, 2030 Completed
System upgraded in 2021
The Town of Gananoque Gananoque Sewage Lagoons Leeds and Thousand Islands Ontario December 31, 2040 In progress
Town of Gander Beaverwood STP Gander Newfoundland and Labrador December 31, 2030 Completed
System decommissioned New plant built in 2020 (Gander Sewerage Treatment Plant)
Town of Gravelbourg Effluent Lagoon Gravelbourg Saskatchewan December 31, 2030 In progress
Town of Ladysmith Ladysmith Main Wastewater Treatment Plant Ladysmith British Columbia December 31, 2030 Completed
System upgraded in 2018
Town of Langham Town of Langham Langham Saskatchewan December 31, 2040 Completed
System decommissioned
New plant built in 2019 (New Lagoon 2019)
Town Of Mulgrave Main St Waste Treatment Mulgrave Nova Scotia December 31, 2040 In progress
Town of Onoway Onoway Wastewater Treatment System Onoway Alberta December 31, 2040 In progress
Town of Rothesay K-Park Lagoon Rothesay New Brunswick December 31, 2040 In progress
Town of Rouleau Rouleau Lagoon Rouleau Saskatchewan December 31, 2040 In progress
Tantramar Crescent Street WWTP Sackville New Brunswick December 31, 2040 In progress
Town of Springdale Hospital Outfall Springdale Newfoundland and Labrador December 31, 2030 In progress
Town of Springdale Island Rock Cove Outfall Springdale Newfoundland and Labrador December 31, 2030 In progress
Town of Springdale Town Center Outfall Springdale Newfoundland and Labrador December 31, 2040 In progress
Aquatera Utilities Inc. Wembley Lagoon Wembley Alberta December 31, 2040 In progress
Village of Edam Edam Lagoon Edam Saskatchewan December 31, 2040 In progress
West Hants Regional Municipality Combined sewer raw discharge (Cunnable Creek) Windsor Nova Scotia December 31, 2030 Completed
System decommissioned
New plant built in 2016 (Windsor Wastewater Treatment Facility)
Town of Wabana Wabana Outfall Wabana Newfoundland and Labrador December 31, 2040 In progress
Town of Cox's Cove Main Street Outfall Cox's Cove Newfoundland and Labrador December 31, 2040 In progress
Town of Carbonear Pike's Lane Pumphouse Carbonear Newfoundland and Labrador December 31, 2040 In progress
Regional Municipality of Wood Buffalo Conklin Sewage Lagoon Conklin Alberta December 31, 2030 In progress
Town of Cupids Town of Cupids Cupids Newfoundland and Labrador December 31, 2040 In progress
Town of Clarke's Beach Clarke's Beach Outfall Clarke's Beach Newfoundland and Labrador December 31, 2040 In progress
Town of Petty Harbour/Maddox Cove Maddox Cove Outfall Petty Harbour Newfoundland and Labrador December 31, 2030 In progress
Town of Petty Harbour/Maddox Cove Petty Harbour Outfall Petty Harbour Newfoundland and Labrador December 31, 2040 In progress
Port au Choix Eastern Point Outfall Port au Choix Newfoundland and Labrador December 31, 2040 In progress
Town of Placentia St Edwards Outfall Placentia Newfoundland and Labrador December 31, 2040 In progress
Town of Placentia Woods Outfall Placentia Newfoundland and Labrador December 31, 2040 In progress
Town of Trinity Bay North Trinity Bay North Outfall Port Union Newfoundland and Labrador December 31, 2040 In progress
Comfort Cove-Newstead Comfort Cove Outfall Comfort Cove-Newstead Newfoundland and Labrador December 31, 2040 In progress
Town of Daniel's Harbour Wastewater Outfall Daniel's Harbour Newfoundland and Labrador December 31, 2040 In progress
St Anthony 6 Marine Drive St Anthony Newfoundland and Labrador December 31, 2040 In progress
Whitbourne Town Council Whitbourne Sewer Lagoon Whitbourne Newfoundland and Labrador December 31, 2040 In progress
Town of Upper Island Cove Outfall #1 Upper Island Cove Newfoundland and Labrador December 31, 2040 In progress
Town of Stephenville Crossing Stephenville Crossing Outfall Stephenville Crossing Newfoundland and Labrador December 31, 2040 In progress
Pouch Cove Town of Pouch Cove Outfall Pouch Cove Newfoundland and Labrador December 31, 2040 In progress
Town of Roberts Arm Roberts Arm Outfall Roberts Arm Newfoundland and Labrador December 31, 2040 In progress
Town of Spaniard's Bay SB Road Spaniards Bay Newfoundland and Labrador December 31, 2040 In progress
Town of Holyrood Healeys Outfall Holyrood Newfoundland and Labrador December 31, 2040 In progress
Town of Arnold's Cove Arnolds Cove Red Town of Arnolds Cove Newfoundland and Labrador December 31, 2040 In progress
Town of Arnold's Cove Arnolds Cove Wharf Town of Arnold's Cove Newfoundland and Labrador December 31, 2040 In progress
Town of Centreville-Wareham-Trinity Williams Lookout, WAREHAM Centreville Wareham Trinity Newfoundland and Labrador December 31, 2040 In progress
Town of Centreville-Wareham-Trinity Near STP, TRINITY Centreville Wareham Trinity Newfoundland and Labrador December 31, 2040 In progress
Town of St. Lawrence Notre Dame St. Lawrence Newfoundland and Labrador December 31, 2040 In progress
Hawkes Bay Hawkes Bay Outfall Hawkes Bay Newfoundland and Labrador December 31, 2040 In progress
TOWN OF OLD PERLICAN TOWN OF OLD PERLICAN Old Perlican Newfoundland and Labrador December 31, 2040 In progress
Town of Lawn Lawn Outfall Lawn Newfoundland and Labrador December 31, 2030 In progress
Town of Irishtown-Summerside Irishtown-Summerside Shed Irishtown-Summerside Newfoundland and Labrador December 31, 2040 In progress
Town of Hants Harbour Hants Harbour Outfall Hants Harbour Newfoundland and Labrador December 31, 2040 In progress
Town of Harbour Grace HG Outfall #4 Harbour Grace Newfoundland and Labrador December 31, 2040 In progress
Town of Harbour Breton Jon Green Outfall Harbour Breton Newfoundland and Labrador December 31, 2040 In progress
Town of Harbour Breton Mike Rgly Outfall Harbour Breton Newfoundland and Labrador December 31, 2040 In progress
Twillingate Upper Jenkins Road Twillingate Newfoundland and Labrador December 31, 2040 In progress
Town of Paradise St. Thomas Line WW Treatment Facility Paradise Newfoundland and Labrador December 31, 2040 In progress
Town of Fortune #2 - Snook's Road Fortune Newfoundland and Labrador December 31, 2040 In progress
Town of Grand Bank Outfall 1 Grand Bank Newfoundland and Labrador December 31, 2040 In progress
Town of St. Paul's St. Paul's Outfall St. Paul's Newfoundland and Labrador December 31, 2040 In progress
Town of Point Leamington point leamington wastewater Point Leamington Newfoundland and Labrador December 31, 2040 In progress
South River South River Outfall South River Newfoundland and Labrador December 31, 2040 In progress
Town of Meadows Marine Drive Outfall Meadows Newfoundland and Labrador December 31, 2040 In progress
Town of Triton Main Street Outfall Triton Newfoundland and Labrador December 31, 2040 In progress
Town of Dover Town of Dover Dover Newfoundland and Labrador December 31, 2030 In progress
Norris Point Norris Point Outfall Norris Point Newfoundland and Labrador December 31, 2040 In progress
Town of Elliston Elliston Cove Elliston Newfoundland and Labrador December 31, 2040 In progress
Trepassey Outfall Trepassey Outfall Trepassey Newfoundland and Labrador December 31, 2040 In progress
Town of Mings Bight Mings Outfall Ming's Bight Newfoundland and Labrador December 31, 2030 In progress
Town of Rocky Harbour Rocky Harbour Outfall Rocky Harbour Newfoundland and Labrador December 31, 2040 In progress
Town of St. George's Town of St. George's Outfalls St. George's Newfoundland and Labrador December 31, 2040 In progress
Town of Bonavista Main Lift Outfall Bonavista Newfoundland and Labrador December 31, 2040 In progress
Town of Cow Head Waste Water System Cow Head Newfoundland and Labrador December 31, 2040 In progress
Town of La Scie La Scie Outfall 3 (Critches Lane) La Scie Newfoundland and Labrador December 31, 2040 In progress
Town of Glovertown Randell's Ave Outfall Glovertown Newfoundland and Labrador December 31, 2040 In progress
Town of Come By Chance Town of Come By Chance Outfall Come By Chance Newfoundland and Labrador December 31, 2040 In progress
Town of Salmon Cove Salmon Cove Outfall Salmon Cove Newfoundland and Labrador December 31, 2040 In progress
Town of Burin Main Street Outfall Burin Newfoundland and Labrador December 31, 2040 In progress
Town of Forteau Forteau Outfall Forteau Newfoundland and Labrador December 31, 2040 In progress
Woody Point WP Blue Woody Point Newfoundland and Labrador December 31, 2040 In progress
Town of Baie Verte Baie Verte Riffs Baie Verte Newfoundland and Labrador December 31, 2030 In progress
Roddickton-Bide Arm Roddickton Outfall Roddickton-Bide Arm Newfoundland and Labrador December 31, 2040 In progress
Town of Musgrave Harbour Musgrave Harbour Outfall Musgrave Harbour Newfoundland and Labrador December 31, 2040 In progress

The following figures are also available in Power BI format at the bottom of the page.

Figure 1. Number of wastewater systems by extension deadline and status of the transitional authorization

Number of Wastewater Systems by Expiry Date of the Transitional Authorization
Long description

This stacked histogram shows the number of transitional authorizations issued by their extension deadline. The sections in light blue represent completed transitional authorizations; the sections in navy blue represent transitional authorizations in progress; and the sections in dark pink represent expired transitional authorization.  

Number of Wastewater Systems Extention Deadline Status of Authorization
10 December 31, 2020 Completed
5 December 31, 2020 Expired
8 December 31, 2030 Completed
12 December 31, 2030 In progress
4 December 31, 2040 Completed
84 December 31, 2040 In progress

Figure 2. Number of wastewater systems by province and status of the transitional authorization

Number of Wastewater Systems with a Transitional Authorization by Province
Long description

This stacked histogram shows the number of wastewater systems with a transitional authorization per province. The sections in light blue correspond to completed transitional authorizations; the sections in navy blue represent transitional authorizations in progress; and the sections in dark pink represent expired transitional authorizations.

Province Number of Wastewater Systems Status of Authorization
Nova Scotia 5 Completed
Nova Scotia 3 Expired 
Nova Scotia 16 In progress
British Columbia 7 Completed
British Columbia 1 Expired 
British Columbia 4 In progress
Newfoundland and Labrador 1 Completed
Newfoundland and Labrador 1 Expired 
Newfoundland and Labrador 65 In progress
Ontario 4 Completed
Ontario 1 In progress
Saskatchewan 2 Completed
Saskatchewan 3 In progress
Alberta 5 In progress
New Brunswick 2 Completed
New Brunswick 2 In progress
Manitoba 1 Completed

Registry of temporary bypass authorizations

A temporary bypass authorization allows communities to release undertreated wastewater for planned maintenance and construction. Bypasses fall into a category depending on their risk to the receiving environment. Lower risk releases fall under a Category 1. Medium risk releases fall under a Category 2. Higher risk releases fall under a Category 3. Categories are based on volumes released, duration and effluent quality.

For more information, review the Temporary Bypass Authorization factsheet.

The list of temporary bypass authorizations issued under the Regulations is available in Power BI and in the table below. To access the Power BI, please go to Registry of temporary bypass authorizations in Power BI. Copies of the authorizations are also available upon request to eu-ww@ec.gc.ca.

Notes on the table and figures:

  • The table only includes authorizations issued from January 2022 to March 2026.
  • Data from Quebec is not included as there is an equivalency agreement that has been in effect since 2018. Under the agreement, municipal and provincial wastewater systems in the province of Quebec are no longer subject to the Regulations.
  • The category approach, based on level of risk, came into force on June 12, 2024. New fields are marked as N/A for authorizations issued prior to this date.
  • For authorization issued after June 12, 2024, the effluent quality of the planned release is classified under one of the following options:
    • physical or biological treatment: wastewater effluent undergoes treatment to remove suspended solids or organic matter before deposit
    • no treatment: wastewater effluent receives no treatment or only preliminary treatment before deposit
    • wastewater mixed with stormwater: construction or maintenance work temporarily reduces the treatment capacity of the system. As a result, untreated wastewater mixed with stormwater can overflow during rainfall events
  • Figures 4 and 5 present the total volume of effluent deposited under temporary bypass authorizations, broken down by province and by year. Actual measured volumes were used where available; otherwise, application estimates were applied. 
Owner Name Wastewater System Name City Province Start Date End Date Bypass Category Duration - Estimated (days) Duration - Actual (days) Volume - Estimated (m3) Volume - Actual (m3) Effluent Quality Location(s) of Deposit Status of Authorization
Town of Lunenburg Waste Water Treatment Plant Lunenburg Nova Scotia 2026-03-02 2026-05-15 1 2 N/A 6,800 N/A no treatment Combined Sewer Overflow Points Issued
Halifax Regional Water Commission Halifax Wastewater Treatment Facility Halifax Nova Scotia 2026-01-06 2026-01-23 1 4 3.21 90,000 10,000 wastewater mixed with stormwater Final Discharge Point Issued
Municipality of the District of East Hants Lantz (Regional) Wastewater Treatment Facility Lantz Nova Scotia 2026-01-05 2026-01-31 2 26 8.00 145,756 59,111 physical or biological treatment Final Discharge Point Issued
Town of Rothesay Fairvale Lagoon Rothesay New Brunswick 2025-12-16 2029-06-30 2 1337 N/A 9,359,000 N/A physical or biological treatment Final Discharge Point Issued
Town of St. Brieux Waste Water Lagoon 1 St. Brieux Saskatchewan 2025-11-25 2026-03-30 2 45 N/A 100,000 N/A physical or biological treatment Final Discharge Point Issued
DND/ MDN CFB/ BFC Borden Borden Ontario 2025-11-17 2025-11-21 1 4 3.13 20,000 19,658 physical or biological treatment Final Discharge Point Issued
City of Bathurst City of Bathurst Waste Water Treatment Plant Bathurst New Brunswick 2025-10-24 2025-12-12 2 30 N/A 50,000 N/A no treatment Final Discharge Point Issued
City of Winnipeg, Water & Waste Department North End Water Pollution Control Centre (NEWPCC) Winnipeg Manitoba 2025-10-01 2026-03-31 2 182 N/A 30,498,080 N/A physical or biological treatment Final Discharge Point Issued
Town of Portugal Cove - St. Philips Portugal Cove Wastewater Treatment Plant Portugal Cove - St. Philip's Newfoundland and Labrador 2025-09-15 2025-12-31 2 45 N/A 49,185 N/A physical or biological treatment Final Discharge Point Issued
Town of Labrador City Drake Labrador City Newfoundland and Labrador 2025-09-14 2025-09-15 1 0.50 0.33 2,200 1,466 no treatment Final Discharge Point Issued
Town of Labrador City Harrie Lake Labrador City Newfoundland and Labrador 2025-09-14 2025-09-15 1 0.50 0.33 600 400 no treatment Final Discharge Point Issued
Ville de Belle-Baie Lagune de Beresford Beresford New Brunswick 2025-08-18 2025-09-26 2 3.00 4.28 13,000 2,159 no treatment Sanitary Sewer Overflow Points Issued
Town of St Brieux Waste Water Lagoon 1 St. Brieux Saskatchewan 2025-07-30 2025-10-30 2 4.2 20 60,000 35,000 physical or biological treatment Final Discharge Point Revoked
City of Prince Albert JW Oliver Waste Water Plant Prince Albert Saskatchewan 2025-07-28 2025-08-18 1 0.13 0.29 3,000 14,110 wastewater mixed with stormwater Final Discharge Point & Sanitary Sewer Overflow Point Issued
Samson Cree Nation No. 137 Samson Wastewater Treatment Plant Maskwacis Alberta 2025-07-20 2025-10-30 2 103 65.00 61,800 16,136 physical or biological treatment Final Discharge Point Issued
Town of Port McNeill Port McNeill Waste Water Treatment Plant Port McNeill British Columbia 2025-07-14 2025-07-25 1 10 1.25 850 27 wastewater mixed with stormwater Final Discharge Point Issued
City of Bathurst City of Bathurst Waste Water Treatment Plant Bathurst New Brunswick 2025-07-03 2025-07-04 1 0.33 0.08 4,000 994 no treatment Final Discharge Point & Sanitary and combined Sewer Overflow Points Issued
City of Saint John Lancaster Lagoon WWTP Saint John New Brunswick 2025-06-20 2025-09-20 2 91 87.92 1,456,000 1,023,539 physical or biological treatment Final Discharge Point Issued
City of Prince Albert JW Oliver Waste Water Plant Prince Albert Saskatchewan 2025-05-09 2025-06-02 1 0.125 0 3000 0 wastewater mixed with stormwater Final Discharge Point & Sanitary Sewer Overflow Point Issued
Halifax Regional Water Commission Dartmouth Wastewater Treatment Facility Dartmouth Nova Scotia 2025-04-28 2025-06-02 3 28 26.21 4,000,000 1,310,629 no treatment Combined Sewer Overflow Points Issued
Halifax Regional Water Commission Halifax Wastewater Treatment Facility Halifax Nova Scotia 2025-04-07 2025-05-04 3 10 8.39 2,000,000 796,638 no treatment Final Discharge Point & Combined Sewer Overflow Points Issued
City of Bathurst City of Bathurst Waste Water Treatment Plant Bathurst New Brunswick 2025-03-27 2025-03-28 1 0.33 0.08 4,000 4 no treatment Final Discharge Point Issued
Capital Regional District McLoughlin Point Wastewater Treatment Plant Victoria British Columbia 2025-03-26 2025-04-15 3 21 20.00 2,761,500 2,136,861 physical or biological treatment Final Discharge Point Issued
City of Thunder Bay Water Pollution Control Plant Thunder Bay Ontario 2025-03-17 2025-04-11 2 26 22.00 1,429,980 1,224,000 physical or biological treatment Final Discharge Point Issued
Halifax Regional Water Commission Dartmouth Wastewater Treatment Facility Dartmouth Nova Scotia 2025-03-10 2025-03-31 1 0.42 0.22 46,000 17,013 no treatment Combined Sewer Overflow Points Issued
Regional Municipality of Niagara Niagara Falls Wastewater Treatment Plant Niagara Falls Ontario 2025-02-27 2025-03-27 1 0.75 0 17,200 0 wastewater mixed with storm water Final Discharge Point Issued
Town of Peace River Town of Peace River Wastewater Plant Peace River Alberta 2025-02-12 2025-10-09 2 240 239.00 888,000 896,340 physical or biological treatment Final Discharge Point Issued
Halifax Regional Water Commission Halifax Wastewater Treatment Facility Halifax Nova Scotia 2025-01-27 2025-02-17 1 1.17 0.42 48,000 14,167 no treatment Combined Sewer Overflow Points Issued
Regional Municipality of Peel G.E. Booth Water Resource Recovery Facility Mississauga Ontario 2024-11-11 2024-11-12 2 0.17 0.05 55,000 5,084 physical or biological treatment Final Discharge Point Issued
Halifax Regional Water Commission Dartmouth Wastewater Treatment Facility Dartmouth Nova Scotia 2024-10-28 2024-11-01 1 0.17 0.15 3,800 765 no treatment Combined Sewer Overflow Point Issued
Town of Labrador City Harrie Lake Labrador City Newfoundland and Labrador 2024-09-08 2024-09-09 1 0.50 0.04 594 50 no treatment Final Discharge Point Issued
Town of Labrador City Drake Labrador City Newfoundland and Labrador 2024-09-08 2024-09-09 1 0.50 0.04 2200 165 no treatment Final Discharge Point Issued
Moose Cree First Nation Moose Factory Lagoon Moose Factory Ontario 2024-07-01 2024-07-31 N/A 31 20.00 50,406 24,000 physical or biological treatment Final Discharge Point Issued
Municipalité Régionale de Tracadie Lagune - rue des Canards (Tracadie) Tracadie-Sheila New Brunswick 2024-05-20 2025-12-15 N/A 416.63 N/A 4,147,300 N/A N/A Final Discharge Point Issued
City of Wetaskiwin Peace Hills Utility Wetaskiwin Alberta 2024-04-01 2024-05-13 N/A 43 N/A 780,000 N/A N/A Final Discharge Point Issued
Town of Labrador City Drake Labrador City Newfoundland and Labrador 2024-03-25 2024-03-25 N/A 0.21 N/A 1000 N/A N/A Final Discharge Point Issued
Village of Lumby Village of Lumby Sewer Treatment Plant Lumby British Columbia 2024-03-07 2024-04-30 N/A 10 N/A 13,120 N/A N/A Final Discharge Point Issued
Town of Labrador City Harrie Lake Labrador City Newfoundland and Labrador 2024-03-04 2024-03-08 N/A 4.33 N/A 5,148 N/A N/A Final Discharge Point Issued
Municipality of the County of Colchester Central Colchester Wastewater Treatment Facility Truro Nova Scotia 2023-12-04 2023-12-15 N/A 11 N/A 285,236 N/A N/A Final Discharge Point Issued
DND/MDN 8 WG/ 8 Esc Trenton Astra Ontario 2023-10-23 2023-10-24 N/A 2 N/A 10,000 N/A N/A Final Discharge Point Issued
City of Thunder Bay Water Pollution Control Plant Thunder Bay Ontario 2023-10-16 2023-11-10 N/A 26 N/A 1,463,800 N/A N/A Final Discharge Point Issued
Moose Cree First Nation Moose Factory Lagoon Moose Factory Ontario 2023-10-04 2023-10-25 N/A 21 N/A 34,146 N/A N/A Final Discharge Point Issued
Town of Golden Golden STP Golden British Columbia 2023-10-01 2023-11-25 N/A 56 N/A 54,100 N/A N/A Final Discharge Point Issued
City of Bathurst City of Bathurst Waste Water Treatment Plant Bathurst New Brunswick 2023-09-04 2023-11-24 N/A 80.96 N/A 971,500 N/A N/A Final Discharge Point Issued
City of Toronto Ashbridges Bay Treatment Plant Toronto Ontario 2023-08-28 2023-09-29 N/A 0.25 N/A 50 N/A N/A Final Discharge Point Issued
Halifax Regional Water Commission Halifax Wastewater Treatment Facility Halifax Nova Scotia 2023-08-28 2023-11-13 N/A 77 N/A 682,000 N/A N/A Final Discharge Point Issued
DND/MDN 5 CDSB/ BS 5 DIV Gagetown Oromocto New Brunswick 2023-07-17 2023-09-01 N/A 47 N/A 78,000 N/A N/A Final Discharge Point Issued
Town of Valleyview Town of Valleyview Wastewater Treatment Plant Valleyview Alberta 2023-07-01 2023-11-30 N/A 21 N/A 160,000 N/A N/A Final Discharge Point Issued
Ville de Belle-Baie Lagune de Pointe-Verte Pointe-Verte New Brunswick 2023-06-19 2023-07-03 N/A 2 N/A 17,000 N/A N/A Final Discharge Point Issued
Ville de Lamèque Lagune de Lamèque Lamèque New Brunswick 2023-06-19 2023-12-22 N/A 156 N/A 117,000 N/A N/A Final Discharge Point Issued
Caraquet Usine de traitement Ste-Anne Caraquet New Brunswick 2023-05-13 2023-10-31 N/A 172 N/A 137,700 N/A N/A Final Discharge Point Issued
Halifax Regional Water Commission Halifax Wastewater Treatment Facility Halifax Nova Scotia 2023-06-08 2023-08-07 N/A 60 N/A 538,000 N/A N/A Final Discharge Point Issued
City of Wetaskiwin Peace Hills Utility Wetaskiwin Alberta 2023-05-17 2023-06-30 N/A 45 N/A 1,280,000 N/A N/A Final Discharge Point Issued
City of Camrose City of Camrose Wastewater Treatment Plant Camrose Alberta 2023-05-01 2023-11-30 N/A 84 N/A 2,000,000 N/A N/A Final Discharge Point Issued
Halifax Regional Water Commission Herring Cove Wastewater Treatment Facility Herring Cove Nova Scotia 2023-04-27 2023-08-31 N/A 125 N/A 39,500 N/A N/A Final Discharge Point Issued
Correctional Service Canada ATL REGION - Springhill Institution Wastewater Treatment System Springhill Nova Scotia 2023-04-24 2023-12-31 N/A 250 N/A 42,000 N/A N/A Final Discharge Point Issued
Ville de Shippagan Lagune de Shippagan Shippagan New Brunswick 2023-04-17 2023-08-14 N/A 25 N/A 20,000 N/A N/A Final Discharge Point Issued
Town of Wabush Commercial Road - Wastewater System Wabush Newfoundland and Labrador 2023-03-27 2023-03-28 N/A 1.50 N/A 4,000 N/A N/A Final Discharge Point Issued
Ville de Lamèque Lagune de Lamèque Lamèque New Brunswick 2023-03-25 2023-05-31 N/A 45 N/A 33,000 N/A N/A Final Discharge Point Issued
Halifax Regional Water Commission Halifax Wastewater Treatment Facility Halifax Nova Scotia 2023-03-23 2023-06-16 N/A 84 N/A 1,220,000 N/A N/A Final Discharge Point Issued
Halifax Regional Water Commission Middle Musquodoboit Wastewater Treatment Facility Middle Musquodoboit Nova Scotia 2023-02-01 2023-04-05 N/A 63 N/A 9,704 N/A N/A Final Discharge Point Issued
Halifax Regional Water Commission Middle Musquodoboit Wastewater Treatment Facility Middle Musquodoboit Nova Scotia 2022-11-14 2022-12-26 N/A 42 N/A 6,470 N/A N/A Final Discharge Point Issued
City of Toronto Ashbridges Bay Treatment Plant Toronto Ontario 2022-11-07 2022-11-11 N/A 0.25 N/A 50 N/A N/A Final Discharge Point Issued
DND/MDN CFB/BFC Borden Borden Ontario 2022-10-31 2022-11-04 N/A 4 N/A 10,000 N/A N/A Final Discharge Point Issued
Town of Drayton Valley Drayton Valley Waste Water Treatment Facility Drayton Valley Alberta 2022-05-20 2022-11-30 N/A 191 N/A 668,500 N/A N/A Final Discharge Point Issued
Capital Regional District McLoughlin Point Wastewater Treatment Plant Esquimalt British Columbia 2022-10-11 2022-10-14 N/A 0.08 N/A 10,000 N/A N/A Final Discharge Point Issued
City of Camrose City of Camrose Wastewater Treatment Plant Camrose Alberta 2022-10-01 2022-11-30 N/A 42 N/A 800,000 N/A N/A Final Discharge Point Issued
Moose Cree First Nation Moose Factory Lagoon Moose Factory Ontario 2022-09-19 2022-09-30 N/A 13 N/A 19,512 N/A N/A Final Discharge Point Issued
City of Bathurst City of Bathurst Waste Water Treatment Plant Bathurst New Brunswick 2022-09-12 2022-09-23 N/A 12 N/A 120,000 N/A N/A Final Discharge Point Issued
City of Miramichi Newcastle Waste Water Treatment Lagoon Miramichi New Brunswick 2022-09-12 2022-09-23 N/A 12 N/A 75,600 N/A N/A Final Discharge Point Issued
Moose Cree First Nation Moose Factory Lagoon Moose Factory Ontario 2022-08-30 2022-09-06 N/A 8 N/A 13,008 N/A N/A Final Discharge Point Issued
Halifax Regional Water Commission Halifax Wastewater Treatment Facility Halifax Nova Scotia 2022-08-15 2022-08-16 N/A 0.50 N/A 45,000 N/A N/A Final Discharge Point Issued
Halifax Regional Water Commission Halifax Wastewater Treatment Facility Halifax Nova Scotia 2022-08-08 2022-08-09 N/A 0.50 N/A 45,000 N/A N/A Final Discharge Point Issued
City of Wetaskiwin Peace Hills Utility Wetaskiwin Alberta 2022-07-13 2022-08-31 N/A 42 N/A 492,954 N/A N/A Final Discharge Point Issued
City of Lloydminster Lloydminster Wastewater Treatment Plant Lloydminster Saskatchewan 2022-07-07 2022-09-03 N/A 59 N/A 736,658 N/A N/A Final Discharge Point Issued
Town of Labrador City Drake Labrador City Newfoundland and Labrador 2022-07-03 2022-10-08 N/A 98 N/A 788,900 N/A N/A Final Discharge Point Issued
Ville de Shippagan Lagune de Shippagan Shippagan New Brunswick 2022-05-16 2022-11-30 N/A 25 N/A 20,000 N/A N/A Final Discharge Point Issued
Municipality of Cumberland Springhill Wastewater Treatment Plant Springhill Nova Scotia 2022-04-14 2022-04-14 N/A 0.17 N/A 300 N/A N/A Final Discharge Point Issued
City of Saskatoon Wastewater Treatment Plant Saskatoon Saskatchewan 2022-04-01 2022-11-01 N/A 214 N/A 17,120,000 N/A N/A Final Discharge Point Issued

The following figures are also available in Power BI format at the bottom of the page.

Figure 3. Number of temporary bypass authorizations issued per year

Number of Temporary Bypass Authorizations Issued per Year
Long description

This histogram shows the number of temporary bypass authorizations issued per year, since 2022.

Number of temporary bypass authorizations issued Year
18 2022
23 2023
10 2024
25 2025
3 2026

Figure 4. Total volume of effluent deposited under temporary bypass authorizations since 2022, per province, in millions of cubic meters

Total volume of effluent deposited under temporary bypass authorizations per province in millions of cubic meters.
Long description

This histogram shows the total volume of effluent deposited under temporary bypass authorizations since 2022, in millions of cubic meters, for any province with data.

Province Total volume of effluent deposited (in millions of cubic meters) 
Manitoba 30.5
Saskatchewan 18.0
New Brunswick 16.2
Alberta 7.1
Nova Scotia 5.1
Ontario 2.8
British Columbia 2.2
Newfoundland and Labrador 0.9

Figure 5. Total volume of effluent deposited under temporary bypass authorizations per year, in millions of cubic meters, starting in 2022

Total volume of effluent deposited under temporary bypass authorizations per year (in millions of cubic meters).
Long description

This histogram shows the total volume of effluent deposited under temporary bypass authorizations per year, in millions of cubic meters, starting in 2022

Total volume of effluent deposited (in millions of cubic meters) Year
21.0 2022
9.2 2023
5.0 2024
47.6 2025
0.1 2026

Registry of temporary authorizations to deposit un-ionized ammonia

A temporary authorization to deposit un-ionized ammonia allows a wastewater system to release wastewater that is acutely lethal because of un-ionized ammonia. The environment where wastewater is released must however be able to absorb the un-ionized ammonia. The wastewater must also meet the other effluent limits of the Regulations. These authorizations are issued for three years and can be extended.

This is the list of temporary authorizations to deposit un-ionized ammonia issued under the Regulations. Copies are available upon request to eu-ww@ec.gc.ca.

Owner Name Wastewater System Name City Province Final Discharge Point Start Date End Date
City of Calgary Fish Creek Wastewater Treatment Plant Calgary Alberta 50.9114 N, 114.0091 W 2015-03-25 2018-03-25
Peace River Regional District Charlie Lake Sewage Lagoons Charlie Lake British Columbia 56.2518 N, 120.9562 W 2018-06-22 2027-06-22 (Extended two times)
City of Fort St. John North Lagoons Fort St. John British Columbia 56.2690 N, 120.7719 W 2015-07-07 2028-06-18 (Extended three times)
City of Fort St. John South Lagoons Fort St. John British Columbia 56.2133 N, 120.8263 W 2019-07-31 2028-07-31 (Extended two times)
Corporation of the Village of Fruitvale Fruitvale Sewer Treatment Plant Fruitvale British Columbia 49.1083 N, 117.5522 W 2022-11-16 2028-11-16 (Extended)
Fluor Canada Ltd LNG Canada Project Cedar Valley Lodge Wastewater Treatment Plant Kitimat British Columbia 53.9928 N, 128.6864 W 2023-12-08 2026-12-08
District of Hope Silverhope Pollution Control Center Hope British Columbia 49.3703 N, 121.4644 W 2024-10-01 2027-10-01

Registry of transitional authorizations in Power BI

 

Registry of temporary bypass authorizations in Power BI

Page details

2026-05-04