A84/100
Dacono Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 6,900 residents · Colorado
What's In Dacono's Tap Water?
31
Contaminants Tested
0
Exceed EPA Limits
1
Above EPA Goals
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.003 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
2
Violations (last 5yr)
0
Unresolved
1
Health-Related
TIER 3Resolved
Disinfection byproduct treatment technique failure
When: February 6, 2022 – March 8, 2022Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved
Violation related to Nitrite
When: January 1, 2022 – January 13, 2022Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Water Utility Details
DACONO CITY OF
Population Served
6,900
Water Source
Purchased Surface Water
System ID
CO0162200
Frequently Asked Questions About Dacono Water
Is Dacono tap water safe to drink?
Dacono, Colorado tap water receives a grade of A (84/100), which is considered excellent. Out of 31 contaminants tested, none exceed EPA maximum contaminant levels (MCLs) and 1 exceed health guidelines (MCLGs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.
What contaminants are in Dacono's water?
Of the 31 contaminants tested in Dacono's water supply, the most notable include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Dacono have any water quality violations?
Yes, Dacono has 5 EPA violation(s) on record, with the most recent in 2022. Violation types include Other, TT, MR. 2 of these are health-based violations, which are the most serious category.
Do I need a water filter in Dacono?
Dacono water meets EPA standards, so a filter is not strictly necessary. However, some residents prefer the added security of a water filter. EPA health goals (MCLGs) are stricter than legal limits and are set at levels with zero expected health risk. 1 contaminant(s) exceed these stricter goals.
Where does Dacono's tap water come from?
Dacono's drinking water is sourced from purchased surface water and supplied by DACONO CITY OF. The system serves approximately 6,900 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Dacono's water tested?
Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. Dacono's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.
How does Dacono's water compare to other cities in Colorado?
Dacono's water quality score of 84/100 earns a grade of A, which is considered excellent. This places Dacono among the better-performing water systems in Colorado. Visit our Colorado state page to see how all cities in the state compare.
What should I do if I'm concerned about Dacono's water quality?
If you have concerns about Dacono's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (DACONO CITY OF) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.