2,4-D and Roundup are ranked as "Possible Human Carcinogens" by the World Health Organization, and are banned in many counties, municipalities, and entire countries.  Yet Colorado Springs applies them liberally to our parks where children play and where we walk our dogs.

https://www.nrdc.org/stories/24-d-most-dangerous-pesticide-youve-never-heard​

http://www.agentorangecanada.com/killme.php

Ask Colorado Springs to use non-toxic alternatives.  Demand proper forewarning and flagging.