Lambton Public Health

Lambton Public Health is seeking information about the location of a dog and its owner following a dog bite incident that occurred around 8:15 p.m. on Monday, September 14, 2026, on 191 Indian Road South directly outside of Food Basics in Sarnia.

Lambton County Council has approved amendments to By-law No. 30 of 2010 through By-law No. 17 of 2026 to expand the public health inspection disclosure program beyond the DineSafe Lambton program. The expanded program, called Lambton Public Health Inspection Reports, will include food safety inspections and inspections of all other regulated, non-food premises. 

Lambton Public Health’s surveillance program has confirmed mosquitoes collected on Wednesday, Aug. 12, 2026, from a trap located in Petrolia, have tested positive for West Nile virus.

This is the first instance of mosquitoes testing positive for West Nile virus in Lambton County this year. No positive human cases of West Nile virus have been confirmed to date in the County.

Lambton Public Health is encouraging residents to take precautions following an ‘Orange Warning – Air Quality’ issued for Sarnia-Lambton by the Ministry of the Environment, Conservation and Parks and Environment and Climate Change Canada. This warning is issued when the Air Quality Health Index (AQHI) is forecast to reach, or has reached, the ‘very high-risk’ category (AQHI of 10 or higher) due to wildfire smoke.

Following Environment and Climate Change Canada’s issuance of a Heat Warning for Lambton County for July 13, 2026, that is expected to continue through Wednesday or Thursday evening, an Extended Heat Warning has been issued for Lambton County by the Medical Officer of Health, Dr. Karalyn Dueck.

Following Environment and Climate Change Canada’s issuance of a Heat Warning for Lambton County for June 29, 2026, that is expected to continue through Friday and possibly lasting into the weekend, an Extended Heat Warning has been issued for Lambton County by the Medical Officer of Health, Dr. Karalyn Dueck.

The temporary interruption to water fluoridation has ended and fluoride levels in the municipal water supply have returned to optimal levels at the Lambton Area Water Supply System (LAWSS) following completed maintenance on the fluoridation system. Drinking water remained safe throughout the maintenance period and continues to meet all regulatory standards.

Lambton Public Health is encouraging residents to take precautions following a ‘Yellow Warning – Air Quality’ issued for Sarnia-Lambton by the Ministry of the Environment, Conservation and Parks and Environment and Climate Change Canada. This warning is issued when the Air Quality Health Index (AQHI) is forecast to reach the ‘high-risk’ category (AQHI 7 to 10).

Lambton Public Health (LPH) is announcing that catch basin larviciding, designed to control mosquito larvae and reduce the incidence of West Nile virus (WNV) in Lambton County including Aamjiwnaang First Nation, is set to begin Monday, June 8.