If you live in the older areas of Frederick, Firestone, or Dacono, your sewer service line probably looks like the pictures shown below. This is especially true in sewer lines constructed with clay tile pipe. The sewer line from the house to the main line is the responsibility of the property owner. Over time, roots will plug the line and if left untreated it may cause the line to break. If you have ever had this problem or think you might, St. Vrain Sanitation District recommends a product called RootX. This product is designed to remove the roots from your sewer service line for up to 12 months without harming the trees or shrubs. It won’t fix your service line but may prolong its life and prevent costly line backups and line cleaning bills. 
St. Vrain Sanitation District sells RootX at a reduced rate of $10.00 per application. If you are interested in this program or have questions about how it works, please contact Dave Cross at (303) 682-4692 or stop by the office at 11307 Business Park Circle in Firestone to purchase the product.

This is what your sewer service line should look like

Here are examples of sewer service lines that should use RootX