Below is a list of documents from other groups and municipalities who have voiced concern over the South County Connector
- City of Maplewood Resolution
- Letter from the Mayor of Maplewood to St. Louis County, May 30, 2013
- Letter from Alderman Scott Ogilvie to St. Louis County (24th Ward), June 9, 2013
- River Des Peres Watershed Coalition letter of concern, June 9, 2013
- City of St. Louis resolution in opposition, July 12, 2013
- Citizens for Modern Transit Opposition Letter, July 12, 2013
- Letter from Great Rivers Greenway, June 14, 2013
- City of St. Louis Alderwoman Donna Baringer final DEIS comments in opposition, July 15, 2013
- City of Shrewsbury final DEIS comments in opposition, July 17, 2013
- Affton Community Involvment Association opposition letter, July 18, 2013
- AIA St. Louis letter of concern, July 18, 2013
- Missouri Sierra Club final DEIS comments in opposition, July 19, 2013
- Missouri Coalition for the Environment letter of concern, July 19, 2013
- Washington University in St. Louis School of Law, Interdisciplinary Environmental Clinic, opposition comments on behalf of Trailnet, July 19, 2013
- City of Maplewood final DEIS comments in opposition, July 19, 2013