 And this trails plan environmental assessment is an attempt to get in compliance with the CODO federal regulations. The proposed trail changes are also projected to cost around 20% less in annual maintenance and would help combat erosion and runoff issues that are negatively impacting trail surface and water quality. The National Park Service is soliciting public comment on the proposed plans between July 2nd and August 1st, and they will be holding three public input meetings. Sarah Petrowich, Delaware Public Media.