Wastewater Treatment

WWTP header

The Town of Lunenburg’s Public Works Department is committed to effectively treating storm and sanitary wastewater.

Infographic: pdf Timeline of Wastewater Treatment in the Town of Lunenburg (1.06 MB)

Brochure: pdf Lunenburg Wastewater Treatment Plant Brochure (499 KB)

Lunenburg Harbour Water Quality

Lunenburg Harbour is a working harbour and does not have any designated recreational swimming areas. 

The Wastewater Treatment Plant's federal and provincial operating licenses require an extensive range of testing for treated wastewater before it is released to the harbour.

Please enjoy recreational boating in our harbour - be safe and have fun!

Public Notices

Wastewater Treatment Plant Upgrades

Important upgrades to the Lunenburg Wastewater Treatment Plant will be taking place beginning June 8, 2020 and continuing until July 17, 2020.   

This will require temporarily bypassing some of the treatment processes in the plant to give access to the equipment being replaced. All effluent will be directed to the normal outfall under the Inshore Fisherman’s Wharf during the construction work. These process bypasses will be as short as possible to minimize the impact on people using the Wharf and the inner Front Harbour. The fishers have been notified via the Lunenburg Harbour Authority. 

The first bypass is planned to begin on Monday, June 8, and all treatment processes are scheduled to be brought back online by the end of the day on Friday, June 12. Occasional bypasses during high flows (generally caused by rain) may occur until Friday, July 17. During this time, one of two biological treatment tanks will be operating while the other will be shut down for construction. Therefore, please be aware that while most of the time in this period the wastewater will be treated as usual, when a bypass is required the wastewater will not be fully treated. 

We encourage those working at the Wharf and in the inner Front Harbour to take precautions to avoid unnecessary contact with the water, and to wash your hands frequently. The public is advised to avoid recreational contact with water in the inner Front Harbour, e.g., swimming, fishing and boating/kayaking.  

The Town very much welcomes this upcoming work as part of our efforts to improve our wastewater treatment system. Thank you for your patience. 

If you would like more information on this work, please contact: Sarah Ensslin, P. Eng., Process Engineer, CBCL Ltd. at This email address is being protected from spambots. You need JavaScript enabled to view it. or 902-492-7979 x2238.

Property Flooding/Soil Erosion

pdf FREE Home Assessment Program (4.50 MB) from Coastal Action

NOT Wanted in our Wastewater System

Toilet sink storm drain header

What you flush, pour down the sink/drain, or dump into a storm sewer doesn’t just disappear. It goes into our wastewater system and into the ocean. 

A wastewater system is designed to treat human waste and grey water only. Problem material in the wastewater system can cause “fatbergs” and clogs, damage household pipes, damage public sewer pipes and equipment, harm marine life and even public health.  

The wastewater system is owned by the residents of Lunenburg. The cost to repair damage from inappropriate material comes back to you, the taxpayer.

For businesses: 

See the Town of Lunenburg’s pdf Bylaw #34 Sewer Discharge (160 KB) for what businesses operating in the Town can and can’t dispose of in the wastewater system.  

For residents and visitors:

pdf Poster set (2.43 MB)

Fats, Oil, Grease

NOT 1 grease

Cooking oils • meat fats • dairy products • sauces & dressings • butter & lard

When warm fats are poured down your sink they cool, harden, and can stick to the inside of your sewer pipe. Over time, this buildup causes “fatbergs” that block sewers and catch basins – and costs your tax dollars to repair. You can help!

Never pour grease down the drain. Scrape dishes and cookware - dispose of in your green bin/compostainer.

VIDEO: Halifax Water “How to Bacon Responsibly"

"Flushable" Wipes

NOT 2 wipes

Personal wipes • baby wipes • cosmetic wipes • cleaning wipes …and even paper towel or luxury tissue!

They may GO down your toilet, but they don’t BREAK down in the sewer. Damage and clogs will result in costly repairs. You can help!

Dispose of wipes in solid waste, or consider not purchasing.

VIDEO: Halifax Water “Toilet Paper - The One & Only Flushable Wipe”

Human & Animal Hair

NOT 3 hair

Long hair •  short hair • pet hair/fur or feathers

Hair sticks to oily materials in drains, and then becomes hydro-dynamic so that water doesn’t flush it away. Hair shedding significantly contributes to costly clogged drains and pipes, as well as getting tangled in machinery. You can help! 

Use a hair trap or strainer to catch hair before it goes down your pipes. Human and pet hair can go in the green bin.

Food Scraps

NOT 4 food

Coffee grounds • eggshells • bones • fruit pits & seeds • vegetable peels • pasta & rice

Hard food scraps can cause expensive damage to pipes, blades, and equipment. Soft scraps swell in water to cause clogs. You can help!

Never dump food down the drain – garborators are not a solution. Dispose of food prep scraps and leftovers in your green bin/compostainer.

Hazardous Chemicals

NOT 5 paint

Paint & varnish • fuel/oil • solvents • adhesives • pesticides/herbicides • bleach & cleaners

A household drain can seem like a convenient place to get rid of waste, but these kinds of chemicals can cause costly damage to equipment and prove a danger to public health and marine life. You can help!

Never pour household hazardous waste down the drain. Town residents can bring many of these products to the residential Household Hazardous Waste site at Kaizer Meadow Landfill & Environmental Management Centre – please CALL FIRST (902-275-2330) to check what they can/cannot accept or email This email address is being protected from spambots. You need JavaScript enabled to view it. – you can also download the "R6RECYCLES" app to search by item. Consider switching to eco-friendly cleaning and personal care products.

Discarded Medication

NOT 6 meds

Prescription drugs • over-the-counter drugs • sharps/needles

The toilet (or garbage) can seem like a convenient place to get rid of waste, but some can be a danger to public health and marine life. You can help!

Never flush or throw out medication. Return “dead drugs” to your local pharmacy. Nova Scotia has a province-wide program for the disposal of household pharmaceutical waste.

Toilet ≠ Trashcan

NOT 7 garbage

Dental floss • cigarette butts • cotton swabs/balls • diapers • feminine hygiene products • condoms • bandaids • clothing • plastic/paper wrappers & stickers

It’s a toilet – or a storm drain – NOT a trashcan. Garbage dumped down the toilet or sink can cause costly backups and get tangled in machinery. Garbage dumped in a storm sewer can go straight into the ocean. You can help!

Never dispose of garbage down the toilet or a storm drain. Put garbage where it belongs – in your solid waste collection. Thank you. 

REWARDS: Fewer repairs = Cost savings; Cleaner wastewater system = Cleaner ocean