Arapahoe County, CO · PWSID CO0103100
Willows WD lead service lines
No inventory counts on file
Willows WD serves about 19,000 people in Arapahoe County, CO, but EPA's EPA SDWIS service line inventory, 2026 Q3 data has no service line counts for it. That doesn't mean the system has no lead. Ask the utility for its inventory, or check your own pipe with the steps below.
The most recent lead sampling period in EPA data (starting 01-JAN-2002) did not exceed the 15 ppb action level. Results are a 90th percentile across sampled homes, so individual homes can still be higher.
Lead rule violations
EPA's data lists no Lead and Copper Rule violations for Willows WD since 2015. That covers testing, reporting, corrosion control and public notice requirements; it isn't a guarantee about any individual home.
Source: EPA SDWIS violation records for the Lead and Copper Rule.
Where the water comes from
Willows WD's main water source is purchased surface water. It buys treated water from Denver Water Board. The seller treats the water, including corrosion control that keeps lead from dissolving out of pipes, while Willows WD is responsible for its own service line inventory and replacement program.
Source: EPA SDWIS water system and facility records.
Check your own address
These counts cover the whole system. To see whether your line is lead, use the utility's address-level inventory. Utilities had to prepare one by October 16, 2024 and make it publicly accessible; systems serving more than 50,000 people must post it online.
No map yet? Do the 2-minute scratch and magnet test on the pipe where water enters your home.
Protect your drinking water now
If your line is lead, galvanized or unknown, filter water for drinking, cooking and baby formula. Use a filter certified to NSF/ANSI 53 for lead. Run cold water for a few minutes after it sits for hours, and never use hot tap water for cooking.
How to pick a lead-certified filter · How to test your water for lead
Getting the line replaced
EPA's Lead and Copper Rule Improvements require most systems to replace lead and galvanized-requiring-replacement lines by December 31, 2037. Ask Willows WD whether it replaces the private side for free or with a cost share before you hire anyone. If you want it done sooner, or your utility doesn't cover your side, a licensed plumber can quote it. What replacement costs.
County pages: Lead pipes in Arapahoe County
Other water systems nearby
| System | Lead + galv. | Unknown |
|---|---|---|
| City of Aurora | 476 | 9,286 |
| East Cherry Creek Valley WSD | 0 | 0 |
| City of Englewood | 2,433 | 682 |
| Southgate WSD | 0 | 0 |
| Southwest Metropolitan WSD | 0 | 0 |
| Arapahoe Cnty Wwwa | 0 | 0 |
| Platte Canyon WSD | 0 | 0 |
| Town of Deer Trail | 0 | 227 |
Check another water system
Questions
Does Willows WD have lead pipes?
Willows WD has not reported service line counts in EPA's data. Ask the utility for its lead service line inventory, which it was required to prepare by October 16, 2024.
How do I check if my home's service line is lead?
Look up your address on Willows WD's official service line inventory, which utilities must make publicly available. You can also scratch the pipe where it enters your home: lead is soft, dull gray, scratches to shiny silver and does not attract a magnet.
When will Willows WD replace lead service lines?
Under EPA's Lead and Copper Rule Improvements, most systems must replace lead and galvanized-requiring-replacement lines by December 31, 2037, starting from November 1, 2027. The rule is being challenged in court, so dates could change. Many utilities run free or cost-share programs now.
Has Willows WD had lead violations?
EPA's data shows no Lead and Copper Rule violations since 2015 for Willows WD.
Which water filters remove lead?
Use a filter certified to NSF/ANSI Standard 53 for lead reduction, or NSF/ANSI 58 for reverse osmosis. Check the certification on NSF's listings, not just the box.
Embed or cite this data
Local news sites, blogs and community groups can embed this card. It updates when EPA releases new data.
Citation: Lead Pipe Map, "Willows WD lead service lines," https://leadpipemap.com/co/willows-wd/. Source: EPA SDWIS service line inventory, 2026 Q3. Download the full dataset on the data page.