CASTLE ROCK TOWN OF Water System Lead Service Lines
Castle Rock serves about 106,822 people in Colorado. Like water systems across the US, it may have lead service lines—the pipes that connect homes to the public water main. These lines were common in older neighborhoods and can leach lead into drinking water, especially in homes built before 1986.
What we know about Castle Rock's lead service lines
The town has not yet completed a full inventory of lead service lines in its system. This means the exact number of homes potentially affected is still unknown. Castle Rock draws its water from surface sources (lakes and rivers), which is typical for Colorado communities.
Without a finished inventory, the town cannot yet confirm how many lead service lines exist or prioritize replacement work. Federal law now requires all US water systems to complete these inventories and share them with customers by specific deadlines.
What this means for your home
If your home was built before the late 1980s, there's a possibility—but not a certainty—that your service line contains lead. Older homes in Castle Rock are at higher risk. The only way to know for sure is to have your line inspected or tested by a licensed plumber.
Lead in water is a legitimate health concern, especially for young children and pregnant people. Even low-level exposure can affect child development. If you're worried about your family's exposure, talk to your pediatrician or contact the Colorado Department of Public Health and Environment for guidance.
You can also have your tap water tested. Many labs offer affordable testing, or contact Castle Rock to ask about water quality testing resources.
Next steps for residents
- Contact Castle Rock Town of directly at their water utility office to ask about the status of their lead service line inventory and when it will be complete.
- Request a water test if your home was built before 1990, or ask the utility if they offer free or low-cost testing.
- Have a licensed plumber inspect your service line if you want to know whether it contains lead before the inventory is finished.
- Talk to your pediatrician if you have health concerns about lead exposure in your household.
Key figures
| Total inventoried lines | 0 |
|---|---|
| BIL/IIJA funding received | — |
| Replacement plan status | Not reported |
| Utility's LCRR inventory | Not provided |
Frequently asked
Does Castle Rock have lead in the water?
Castle Rock's water source is surface water, which typically contains less lead than groundwater. However, lead can enter water through aging service lines. The town has not yet completed a full inventory of lead service lines, so the extent of the problem is unknown.
How do I know if my house has a lead service line?
Homes built before the late 1980s are at higher risk. You can hire a licensed plumber to inspect your line, have your water tested, or contact Castle Rock for information about their lead inventory when it's available.
Is it safe to drink tap water in Castle Rock?
Castle Rock's tap water meets federal safety standards. However, if your home has a lead service line, boiling water does not remove lead. If you're concerned, request a water test or talk to your doctor, especially if you have young children.
What is Castle Rock doing about lead service lines?
Castle Rock is required by federal law to complete an inventory of all lead service lines. The town has not yet published a finished inventory or replacement plan. Contact them directly to ask about timelines.