EPA data as of Oct 2026 · page updated 2026-10-29

Home hazard report for 95741 — Rancho Cordova, CA

ZIP 95741 is served by Cal Am - Suburban Rosemont: no health-based violations since 2016, latest lead result 0 ppb, PFAS 13.4 ppt. Sacramento is in EPA radon zone 3.

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Where ZIP 95741 is

blue: utility service area · scroll or pinch to zoom
ZIP code areaZIP center Water utility service area PFOA/PFOS ≥ 4 ppt Lead > 15 ppb 5+ violations Superfund site (active) proposed cleaned up Circles: other water systems flagged nearby; size = people served. Tap any symbol for details.

Drinking water: Cal Am - Suburban Rosemont

EPA IDCA3410010
People served54,893
Sourcesurface water (rivers, lakes)
Connections16,634

Health-based violations

No health-based violations reported since 2016.

Full record for Cal Am - Suburban Rosemont →

Lead

Jan 20230 ppb
Jan 20202 ppb
Jan 20171 ppb
Jan 20141 ppb
Jan 20125.1 ppb
Jan 20114 ppb
Jan 20082 ppb
Jan 20054 ppb

90th-percentile lead per sampling round (90% of the homes sampled were at or below this level). Black line: EPA’s 15 ppb action level; under the Lead and Copper Rule Improvements the action level becomes 10 ppb from 2027.

PFAS (“forever chemicals”)

CompoundHighest resultSamples with detectionEPA limit
PFOS13.4 ppt3 of 424 ppt MCL
PFHxS10.9 ppt8 of 42—
PFBA9 ppt1 of 42—
PFOA8.2 ppt1 of 424 ppt MCL
PFPeA7.7 ppt3 of 42—
PFHxA5.4 ppt4 of 42—
PFHpA4.7 ppt2 of 42—
PFBSnot detected0 of 42—
HFPO-DA (GenX)not detected0 of 42—
PFNAnot detected0 of 42—
PFDAnot detected0 of 42—

EPA Fifth Unregulated Contaminant Monitoring Rule (UCMR 5), samples 2023–2025; ppt = parts per trillion (ng/L). The 4.0 ppt maximum contaminant levels for PFOA and PFOS were set by EPA in 2024; water systems have until the end of the decade to comply.

Radon in Sacramento

EPA radon zone 3 — low potential. Predicted average under 2 pCi/L — but any home can have high radon, so EPA still recommends a test.

Radon is a colorless, odorless radioactive gas from soil and rock, and the leading cause of lung cancer among non-smokers. EPA recommends fixing a home at 4 pCi/L or above and considering it from 2 pCi/L. A short-term test kit costs about $15–30. How radon zones work →

Superfund sites nearby

SiteStatusDistance
Mather Air Force Base
Sacramento, California · EPA ID CA8570024143
Active (final NPL)2.2 mi
Aerojet General Corp.
Rancho Cordova, California · EPA ID CAD980358832
Active (final NPL)5.6 mi
Sacramento Army Depot
Sacramento, California · EPA ID CA0210020780
Active (final NPL)7.0 mi
McClellan Air Force Base (Ground Water Contamination)
Sacramento, California · EPA ID CA4570024337
Active (final NPL)7.2 mi

EPA Superfund National Priorities List (NPL): the country’s most serious known hazardous-waste sites, each with an EPA cleanup record (linked). Distance is measured from the ZIP center to the site’s reference point; being near a site does not by itself mean exposure — EPA site pages describe what was found and how it is being cleaned up.

Buying a home in Rancho Cordova? See the 2026 conforming, FHA and jumbo loan limits for Sacramento →

What this is — and isn’t. These are records your water utility and state reported to the EPA, and the EPA’s radon map for your county. They describe the system and the area, not the water from your own tap or the air in your home. For that, read your utility’s annual Consumer Confidence Report and test: lead and radon tests are inexpensive.

Questions about 95741

Who supplies drinking water to ZIP 95741?

Cal Am - Suburban Rosemont (EPA ID CA3410010), a surface water (rivers, lakes) system serving about 54,893 people.

Is there lead in Rancho Cordova, CA tap water?

The utility’s latest 90th-percentile lead result (Jan 2023) was 0 ppb; EPA’s action level is 15 ppb, falling to 10 ppb from 2027. Lead mostly comes from service lines and home plumbing, so the only way to know your tap is to test it.

Does Rancho Cordova, CA water have PFAS?

Highest PFOA or PFOS result in EPA’s 2023–2025 testing was at or above 4.0 ppt, EPA’s 2024 maximum contaminant level for each. 7 PFAS compounds detected.

Has the water system in 95741 had violations?

No health-based violations reported since 2016.

Are there Superfund sites near 95741?

Active or proposed Superfund (National Priorities List) sites near the center of this ZIP code. Sites within 10 miles: Mather Air Force Base (2.2 mi, Active (final NPL)); Aerojet General Corp. (5.6 mi, Active (final NPL)); Sacramento Army Depot (7.0 mi, Active (final NPL)).

Is radon a problem in Sacramento?

Sacramento is in EPA radon zone 3 (low potential). Predicted average under 2 pCi/L — but any home can have high radon, so EPA still recommends a test.