Community voices concerns over Shadow Mountain Drive bike park's environmental impact

The Water Symposium Part 2, held on May 31, 2024, in Jefferson County, Colorado, focused on the proposed development of a class 3 commercial bike park on Shadow Mountain Drive. The meeting highlighted significant concerns regarding the potential impact of this development on local water quality, particularly due to an expected influx of up to 1,200 visitors daily and the construction of a 300-space parking lot.

One of the primary issues raised was the necessity for a state-of-the-art wastewater treatment facility, which is required to meet Total Maximum Daily Load (TMDL) standards for phosphorus. The facility must handle a minimum of 2,000 gallons of wastewater per day, and the determination of whether the development will exceed this threshold is crucial. The management agency emphasized that they rely on the county to provide this critical information, as they do not have the authority to make such determinations independently.

The timeline for establishing a wastewater treatment facility within the watershed is approximately two and a half years, prompting discussions about alternative solutions to avoid permanent systems. The meeting underscored the importance of evaluating stormwater management, particularly concerning new impervious surfaces created by the development. Engineers will assess how much runoff will occur and determine the necessary stormwater detention measures to prevent immediate discharge into local streams. The goal is to detain runoff for at least 72 hours to allow sediment to settle before it is released.

Overall, the symposium addressed vital environmental considerations surrounding the proposed bike park, emphasizing the need for thorough assessments and compliance with state regulations to protect local water resources. Further discussions and evaluations will be necessary as the development process progresses.