City of Aurora☆

Its service area also reaches South Platte Cheesman to Denver Gage (19.0%), South Platte: Greeley to Balzac (0.0%).

Where the water comes from

These are EPA's facility records, not DWR structures. Which decreed rights sit behind an intake is the next phase; nothing here is inferred.

Wholesale connections

Buys water from DENVER WATER BOARD.

Sells water to 8 systems: HILLCREST VILLAGE MHP, FRIENDLY VILLAGE OF AURORA MHP, SUBURBAN ESTATES MHP, EAST CHERRY CREEK VALLEY WSD, CEDAR VILLAGE MHP, THE MEADOWS, SIERRA BONITA ESTATES, WISE PROJECT.

DWR structures that name this system

Source Probable join · fetched 2026-10-06 · matched on DWR's recorded contact or an EPA intake name; verify on the dossier

53 structures on DWR's record name this system as their contact (53). A match says who DWR lists, not who owns the water: a ditch company can own the headgate while the system owns shares, and a consultant can be the contact. The dossier holds the decree.

Compliance record

Source Register of another agency · fetched 2026-10-07 · verify at EPA ECHO ↗

EPA's own summary: violations in 0 of the last 12 quarters.

No health-based or open violation on the federal record for this system.

What the regulator did about it

4 enforcement actions on this system's federal record. In Colorado the state is the primacy agency, so most actions are the state's; EPA acts directly on tribal systems and when it steps in.

Lead and copper

The latest 90th-percentile lead result is 0.0047 mg/L (sampling period ending 2026-06-30) against an action level of 0.015 mg/L, below it. 8 results on file.

The action level is not a health limit: it is the level at which the rule requires a system to act (corrosion control, public education, and in some cases replacing lead service lines). Lead mostly enters water from household plumbing, so a system-wide percentile does not tell you what comes out of one tap.

Violation, enforcement and lead/copper records are EPA SDWIS federal reporting, fetched monthly; the summary is EPA ECHO. Code names come from EPA's own REF_CODE_VALUE table. SDWIS carries violations, not routine sample results — nitrate, disinfection by-product and PFAS values are not in it, and a clean record here means nothing was reported as a violation, not that nothing was ever detected. For what was measured, ask the system for its Consumer Confidence Report.

PFAS and lithium: EPA's UCMR 5 monitoring, 2023–2025

Source Register of another agency · fetched 2026-10-09 · verify at EPA UCMR occurrence data ↗

13 samples, 360 results, 2023-01-24 to 2024-08-05. 4 of the 29 PFAS were detected at least once; lithium was measured up to 21.4 µg/L (no federal limit).

Rows shown: every detected contaminant plus the regulated PFAS and lithium; the rest were below their reporting limits. These are UCMR monitoring samples, not compliance samples. EPA's April 2024 rule set 4.0 ng/L (0.004 µg/L) for PFOA and PFOS, the same as UCMR 5's reporting limit, so any detection of either is at or above it; the rule's compliance date and its other limits have been under revision since 2025 and are not applied here. State PFAS sampling is on CDPHE's pages ↗.

Common questions

Who provides drinking water in Aurora, Colorado?

The City of Aurora is the public water system serving 533,407 people in Arapahoe County, from surface water. Its EPA public water system id is CO0103005.

Where does the City of Aurora get its water?

The City of Aurora reports surface water as its primary source. EPA lists its source facilities as DA1 WELL, DA2 WELL, DA3 WELL, NC VW10A.

Does the City of Aurora have any drinking water violations?

EPA's compliance record shows no open health-based violations for the City of Aurora at the last monthly fetch. Older and non-health-based entries, if any, are listed on this page.