Racetrack Engineered Resurfacing Initial Study/MND & CDP


Prepared an Initial Study/Mitigated Negative Declaration (MND) and Coastal Development Permit (CDP) for the Del Mar Racetrack re-surfacing project. The project was legally mandated to by constructed in 2007 by the California State Horse Racing Board.

The purpose of the project was threefold: safety of the horses and equestrians; reduced maintenance and operational water needs by approximately 90 percent; and reduced operational dust generation. The project replaced the top seven inches of the existing dirt racetrack surface with a new engineered surface material consisting of 80 to 90 percent silica sand, recycled carpet fiber, and a recycled rubber product, all coated with micro-crystalline wax.

The project also included a new piping and drainage system below the track surface with dual functions. The first function of the new drainage system is to collect and store stormwater and maintenance water so as not to allow pollutant runoff into the San Dieguito River or Pacific Ocean. The second function of the new drainage system is to avoid overflow of the City of Del Mar’s sewer system.

The project required multiple engineering redesigns and an extended public review period in order to adequately avoid, minimize, and address all public concerns.