TapGraded
A

AURORA CITY OF

Aurora, CO · 533,407 served

AURORA CITY OF serves 533,407 people in Aurora, CO. It has 0 health-based violations in the last 5 years. TapGraded gives this system an A.

Score breakdown

Health-based violations (5y)

0

Monitoring violations (5y)

0

Currently unaddressed

0

Overall score

100/100

Violation history (last 5 years)

No violations on record.

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Lead (Lead and Copper Rule)

EPA's current lead action level is 15 ppb (dropping to 10 ppb in 2027 under the Lead and Copper Rule Improvements).

90th-percentile lead sample 2.5 ppb
0 ppb EPA action level: 15 ppb

PFAS (UCMR5 occurrence data)

HFPO-DA (not detected) 0 ppt
0 ppt EPA MCL: 10 ppt
PFOS (not detected) 0 ppt
0 ppt EPA MCL: 4 ppt
PFNA (not detected) 0 ppt
0 ppt EPA MCL: 10 ppt
PFHxS (not detected) 0 ppt
0 ppt EPA MCL: 10 ppt
PFOA (not detected) 0 ppt
0 ppt EPA MCL: 4 ppt

System details

System type
Community water system
Water source
Surface water
Ownership
Local government
Service connections
91,821

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Frequently asked questions

Is Aurora, CO tap water safe to drink?

AURORA CITY OF has 0 health-based violations in the last 5 years. TapGraded gives this system an A.

Does AURORA CITY OF have lead in its water?

The most recent 90th-percentile lead sample is 2.5 ppb, versus the EPA action level of 15 ppb.

Has PFAS been detected in AURORA CITY OF's water?

This system was tested under UCMR5 and no PFAS was detected above the reporting limit in the analytes we track.

Source: EPA SDWIS/ECHO · Data as of 2026Q2