This dataset includes measurements of the partial pressure of carbon dioxide (pCO2), temperature, and salinity made on seawater drawn continuously from a 20-m intake at the Bamfield Marine Sciences Centre in Bamfield, BC, Canada. The collection of these data utilizes a Burke-o-Lator (BoL) pCO2/TCO2 analyzer and began August 30, 2023. The Burke-o-Lator (BoL) pCO2/TCO2 analyzer measures carbon dioxide partial pressure (pCO2) and total dissolved inorganic carbon (TCO2) from a flow-through seawater stream and from seawater collected in discrete samples. The BoL is paired with a SBE 45 Thermosalinograph to measure seawater temperature and salinity. These data provide valuable information on patterns in marine carbonate chemistry and ocean acidification within Barkley Sound waters being supplied to the Bamfield Marine Sciences Centre and the Nova Harvest Ltd. shellfish hatchery.