Town of Castle Rock
Drinking water quality, contact, and Consumer Confidence Report
Serving 1 city in CO · PWSID CO0118010
Town of Castle Rock serves 99,757 people. 5 contaminants currently exceed health-based guidelines — full breakdown below.
- People served
- 99,757
- Last EPA sample
- 2025-05-31
- PFAS
- Not detected above guidelines
- Active violations
- None
Data sources: EPA SDWIS, Town of Castle Rock's published Consumer Confidence Report, Colorado Department of Environmental Protection.
This page summarizes publicly available EPA and CCR records. For health decisions about your water, consult your utility or a licensed professional.
Official Town of Castle Rock Resources
Town of Castle Rock Service Area
Loading map...
This map shows the approximate service area for Town of Castle Rock. Actual coverage may vary. Contact the utility directly to confirm service availability at your address.
Town of Castle Rock Water Quality Grade
Significant water quality issues. Filter recommended.
Grade is calculated based on contaminants exceeding health guidelines (MCLG) and EPA Maximum Contaminant Level violations. A = Excellent (90-100), B = Good (80-89), C = Fair (70-79), D = Poor (60-69), F = Failing (<60).
Is Town of Castle Rock Water Safe to Drink?
Town of Castle Rock has reported 5 contaminants above EPA health-based guidelines (MCLGs) in at least one city served. We recommend reviewing individual city reports below for specific water quality details.
This utility serves 99,757 people across 1 city in CO. Water quality can vary by location within the service area. Check individual city pages below for detailed contaminant data specific to your area.
Get your water independently tested in Colorado →How does Colorado water quality rank nationally? →
Boil water advisories are issued by water systems and state agencies, and they change from day to day. Boil water advisories in Colorado
Learn more about the contaminants detected in Town of Castle Rock:
Town of Castle Rock Service Area
Get Town of Castle Rock Alerts
Water quality news, test results, and filter recommendations for your area.
Free forever. Unsubscribe anytime. We never share your email.
Town of Castle Rock Contact & Information
Phone
Mailing Address
B2B Contact Data
B2B Contact Data Available
Contacts for Town of Castle Rock
| Name | Title | Phone | |
|---|---|---|---|
| J████ S████ | Water Treatment Supervisor | (555) ███-████ | j████@city████.gov |
| M████ J██████ | Utility Director | (555) ███-████ | m████@water████.org |
Water Sources & Treatment
Water Sources
Treatment Methods
Disinfectant Used
chloramines, filtration, hypochlorite
Town of Castle Rock Consumer Confidence Report
A Consumer Confidence Report (CCR) is the EPA-mandated annual water-quality report every community water system must publish by July 1 each year (Safe Drinking Water Act §1414(c)(4)). It summarizes contaminants tested, MCL and MCLG comparisons, and any system violations from the prior calendar year.
A current CCR for Town of Castle Rock has not been published or validated on TapWaterData yet.
Residents: contact the utility directly using the phone number above, or check the EPA’s national CCR portal. Reports are typically distributed by mail or posted on the utility’s official website.
Town of Castle Rock Annual Water Quality Reports
Historical reports are being compiled. Check back soon for archived water quality data.
What is a CCR? The Consumer Confidence Report (CCR) is an annual water quality report that water utilities are required by the EPA to provide to customers. It contains information about your water source, detected contaminants, and compliance status.
Concerned about what's in your water?
You're viewing 5 contaminants above health-based guidelines here. Your own tap water can differ — upload your test (PDF or a photo) and we'll email a full plain-English reading of every number, free.
Your upload also helps us keep local water data accurate — we only ever share anonymized, area-level summaries.
Upload my testRecommended Water Filters for Town of Castle Rock
Based on water quality data from cities served by Town of Castle Rock, we recommend NSF-certified filters that can remove contaminants above health guidelines.
Frequently Asked Questions about Town of Castle Rock
Is Town of Castle Rock water safe to drink?
Does Town of Castle Rock have PFAS in its water?
How do I pay my Town of Castle Rock water bill?
How many people does Town of Castle Rock serve?
What cities does Town of Castle Rock serve?
Does Town of Castle Rock have any EPA violations?
What is Town of Castle Rock's phone number?
Where can I find Town of Castle Rock's Consumer Confidence Report?
Similar water utilities in Colorado
How we built this page
Water-quality and contact data on this page comes from public federal and state records. We update each utility's record whenever its underlying source publishes new data — typically within days of an EPA SDWIS refresh.
- Contaminants & violations: EPA Safe Drinking Water Information System (SDWIS) plus the Unregulated Contaminant Monitoring Rule (UCMR-5) for PFAS and emerging contaminants.
- Annual reports: Town of Castle Rock's most recent published Consumer Confidence Report (CCR), where available.
- Service area & contact: EPA SDWIS plus the Colorado Department of Environmental Protection / Drinking Water program.
Spotted a data issue? Use the Spotted something off? link at the bottom of the page — corrections feed back into the next data refresh. Learn more about TapWaterData.
Are you Town of Castle Rock? Publish your 2027 CCR
TapWaterData runs a free CCR publishing service for community water systems. Claim this listing to publish your Consumer Confidence Report here — it inherits this page's search authority and reaches every customer who Googles Town of Castle Rock.
- EPA-compliant distribution. Satisfies the 2027 Revised CCR Rule direct-URL requirement with an auditable archive.
- Publish once a year. Agent-assisted workflow; no login setup for small systems.
- Inherits this page's reach. Your published CCR appears directly on the page customers already find on Google.
Free for operators. No card required. Typical setup: 5 minutes.
Spotted something off on this page?
Residents keep our data honest.
Check another location
Stay Informed About Your Water Quality
Get EPA reports, filter recommendations, and safety alerts for your area.
Weekly water-quality guidance for your area. Unsubscribe anytime.