Aurora's water safety record falls below average in CO - compliance violations span multiple service areas, and several systems have recorded exceedances that trigger federal notification requirements under the Safe Drinking Water Act.

Data: EPA SDWIS, FEMA NFIP, Census ACS Last verified: 2026-07-19

Water Quality in Aurora

We track water quality and home safety data for 17 ZIP codes in Aurora, Colorado (population ~463,814), covering 8 community water systems serving approximately 1,965,489 people region-wide.

17 of 17 ZIP codes (100%) have recorded EPA violations - 204 total, including no health-based violations.

Average Home Safety Score: D (52/100)

Water sources: Groundwater, Surface water.

Top Contaminants

Lead Risk

• Average lead level (90th percentile): 0.0025 mg/L
• 41% of housing built before 1986 (when lead solder was banned)
• 2% of housing built before 1950 (when lead pipes were standard)
• Median year built: 1988
• Most common estimated pipe material: Copper
• Lead exposure risk score: 35/100
• Estimated lead service line probability: 12%
• 4 ZIP codes classified as high or very high lead risk

With 41% of homes built before the 1986 lead solder ban, Aurora residents - especially those in older neighborhoods - should consider testing their tap water for lead. Homes built before 1950 are at the highest risk of having lead service lines.

Housing Age Distribution

171,561 total housing units across 17 ZIP codes:

Flood Risk

FEMA National Flood Insurance Program data for Aurora:

• 109 flood insurance claims on record
• $436,924 total paid out
• $4,008 average claim payout
• Dominant FEMA flood zone: X (Low risk)
• 1 of 17 ZIP codes in high-risk flood zones (A/V)

Radon Risk

Dominant EPA radon zone: Zone 1 (High Risk)

• Zone 1 (High): 17 ZIP codes
• Zone 2 (Moderate): 0 ZIP codes
• Zone 3 (Low): 0 ZIP codes

The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.

Neighborhoods by Safety Score

Safest Areas

Areas Needing Attention

What Aurora Residents Can Do

Test Your Water

• Order a certified lab test - home test kits cost $20–50 and cover lead, bacteria, and common contaminants
• Request your utility's CCR (Consumer Confidence Report) - your water provider must publish this annually
• Check your ZIP code - each area in Aurora has different water systems and risk levels

Filter Your Water

• NSF-certified pitcher filter removes chlorine taste and some contaminants ($20–40)
• NSF 53-certified filter for lead - recommended for homes built before 1986
• Reverse osmosis system removes 95%+ of contaminants including lead, PFAS, and nitrates ($150–400)

Test for Radon

• Aurora is in a high-risk radon area
• Short-term radon test kits cost $10–25
• If levels exceed 4 pCi/L, EPA recommends professional mitigation

Stay Informed

• Visit your ZIP code report for detailed, address-level data
• Sign up for EPA water quality alerts
• Review the annual water quality report from your local utility

All ZIP Codes in Aurora

• 80010 [D] - 12 violations
• 80011 [D] - 12 violations
• 80012 [D] - 12 violations
• 80013 [D] - 12 violations
• 80014 [C] - 12 violations
• 80015 [C] - 12 violations
• 80016 [D] - 12 violations
• 80017 [C] - 12 violations
• 80018 [C] - 12 violations
• 80019 [D] - 12 violations
• 80040 [D] - 12 violations
• 80041 [C] - 12 violations
• 80042 [D] - 12 violations
• 80044 [D] - 12 violations
• 80045 [D] - 12 violations
• 80046 [D] - 12 violations
• 80047 [D] - 12 violations

Frequently Asked Questions

Is the tap water safe to drink in Aurora, CO?

Aurora has an average Home Safety Score of 52/100 (grade D) across 17 ZIP codes. There are 204 recorded EPA violations, 0 of which are health-based. Safety varies by neighborhood - check your specific ZIP code report for details.

Does Aurora have lead in the water?

The average 90th-percentile lead level across Aurora is 0.0025 mg/L, below the EPA action level of 0.015 mg/L. No ZIP codes currently exceed the EPA lead action level. About 41% of housing was built before 1986, when lead solder was banned.

Is Aurora at risk for flooding?

FEMA data shows 109 flood insurance claims in Aurora ZIP codes, with an average payout of $4,008. 1 of 17 ZIP codes are in high-risk FEMA flood zones (A or V).

Are there lead pipes in Aurora homes?

41% of Aurora housing was built before 1986, when lead solder was common in plumbing. 2% was built before 1950, when lead pipes were standard. The most common estimated pipe material is Copper. The estimated probability of lead service lines is 12%. We recommend testing your water if your home was built before 1986.

What contaminants have been found in Aurora water?

The most common contaminants by violation count are Stage 1 DBP Rule, Consumer Confidence Report Rule, Contaminant 0600. Across 17 ZIP codes, 17 have recorded EPA violations. Check your ZIP code report for the specific contaminants in your area.

Data Sources

• Water quality: EPA Safe Drinking Water Information System (SDWIS)
• Lead/copper: EPA Lead and Copper Rule sampling data
• Housing age: U.S. Census Bureau American Community Survey
• Flood data: FEMA National Flood Insurance Program
• Lead exposure: Composite risk score based on housing age, water lead levels, and service line estimates
• Radon: EPA Map of Radon Zones

Updated daily.

Housing Age Profile

Aurora's housing stock skews relatively recent, with a median build year of 1988. Homes constructed after 1986 avoid the lead-soldered copper joints that were standard before the federal ban - reducing aggregate risk from plumbing as a contamination pathway.

1988

Median Year Built

0%

Pre-1986 (Lead Paint Risk)

0%

Pre-1970 (Lead Pipes Risk)

Most homes in Aurora were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.

Source: U.S. Census Bureau ACS B25034.

Protecting Children from Lead in Aurora

0.0025

mg/L Avg Lead (Limit: 0.015)

Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

Lead risk in Aurora appears low overall, but individual homes may differ. Testing is the only way to confirm your water's lead content.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Climate-Related Water Risk for Aurora

Flood activity in Aurora is neither negligible nor at the level of the highest-exposure areas in the NFIP dataset. The 109-claim record and 0% flood zone coverage suggest a community that has experienced recurrent events but has not faced the kind of sustained, severe exposure where water-supply contamination becomes a primary public health concern. It sits in a middle range where flood history merits inclusion in any complete local water quality picture.

109

Total FEMA Flood Claims

~5

Est. Claims/Year

Aurora has a moderate flood history with 109 FEMA claims. Flood events can contaminate drinking water and overwhelm treatment systems.

How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure.

Residents in flood-prone areas should consider flood insurance even outside FEMA zones - over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.

Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.