Biosystems and Agricultural Engineering

Growing Oklahoma

Biosystems and Agricultural Engineering

Growing Oklahoma

senior design team sustainable parking lotoklahoma deq logo


Sustainable Parking Lot

Lucky Airehrour, Kylea Boyd, Kristi Harkrider, Landon Johnston



Urban Sustainability Solutions strives to provide environmentally compliant, low-impact development designs for a sustainable future. Our designs use innovative techniques that save money and resources. Urban Sustainability Solutions strives to retrofit existing sites, provide sustainable design and installation at undeveloped sites, and promote the growth of green technologies in the central United States.



Problem Statement

Urban Sustainability Solutions’ will implement low-impact development design techniques in order to retrofit an existing parking lot half-owned by the Oklahoma Department of Environmental Quality and OCU Law School. Our goal is to provide a cost-competitive, low-maintenance, and aesthetically pleasing design that returns the site’s hydrologic functionality to a near-predevelopment state.

Scope of Work

Traditional approaches to stormwater management are being replaced with an eco-friendly approach whose goal is to return hydrologic functionality of developed areas to pre-development states through the use of low-impact development techniques. EPA intends to propose a rule to strengthen the national stormwater program by June 10, 2013 and complete a final action by December 10, 2014. EPA has already announced that the national rulemaking is considering the following key rulemaking actions: • Develop performance standards from newly developed and redeveloped sites to better address stormwater management as projects are built; • Explore options for expanding the protections of the municipal separate sewer systems (MS4) program; • Evaluate options for establishing and implementing a municipal program to reduce discharges from existing development; • Evaluate establishing a single set of minimum measure requirements for regulated MS4s. However, industrial requirements may only apply to regulated MS4s serving populations of 100,000 or more; • Explore options for establishing specific requirements for transportation facilities; and • Evaluating additional provisions specific to the Chesapeake Bay watershed. One performance standard that currently exists in several states, and that is anticipated by ODEQ to be a requirement of the rule to be proposed by EPA, is to be able to process stormwater from a 95th percentile storm in order to maintain a predevelopment hydrologic regime at newly developed or redeveloped sites. The rule may also call for the use of numeric water quality effluent limits in some cases, or the use of surrogates for numeric water quality limits, such as flow rate and percent impervious cover for developed areas. The new rule will likely encourage the use of a combination of best management practices such as sustainability, green infrastructure, and low-impact development as the most acceptable method in order to meet the new performance standards and requirements. In anticipation of an intensive federal stormwater rule, ODEQ would like to redesign their headquarters building parking lot in order to promote new LID techniques and to become a role model in stormwater management for other agencies and companies.



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