The temperature of Laurel Creek and Columbia Lake is very warm, especially in the summer months. Warm water, accompanied by high nutrient levels, encourages the growth of algae, causing problems of murkiness, aesthetics, and consumption of dissolved oxygen. Dissolved oxygen - Lack of oxygen in Laurel Creek and the campus reservoirs can be a serious problem in summer. Nutrients - Nutrients, especially nitrogen and phosphorus, are added to Laurel Creek on campus by animal feces, organic decay, and runoff. Fertilizers and other products added to recreational, agricultural, and homeowners' lands are a major source in campus waters.
Nutrients encourage the growth of algae, with accompanying problems as described above.
Heavy metals - Copper, zinc, lead, chromium, cadmium, and other toxic metals are added to Laurel Creek by the main stormwater input on campus. This outlet collects stormwater from most of South Campus, and many streets, businesses and industries around Phillip and Columbia Streets. Stakeholder Issues Aesthetics - Stakeholders felt strongly that any changes made to the Creek or reservoirs should maintain views and access to these bodies of water. The reservoirs in particular were believed to be attractions for alumni, potential students, and other visitors. Some stakeholders pointed out that sediment and algae in the Creek and reservoirs cause unpleasant views and odours from time to time.