In the algal cultivation space, technologies are often compared based on their areal productivities. In this study, the characterized EcoRecover process was intentionally designed to be phosphorus-limited to meet stringent permit requirements. As a result, the system was not designed to maximize biomass productivity and instead prioritized reliable effluent quality (with biomass production and sale serving as a secondary benefit). Nonetheless, across the focus period (November 1, 2022 to February 14, 2023), the EcoRecover's areal productivity was 15 ± 4 g•m -2 •day -1 in winter months (external temperatures from -27 to 24 °C, daily average of -7 °C) at a high altitude (45° N). In other monitored periods subject to upstream upsets or other external pressures (e.g., chemical shortages), areal productivities on the order of 45 g•m -2 •d -1 (average