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Review government records associated with Moraga, California.
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Preparing Moraga environmental records...
Check your water bill for your utility name and confirm the reporting year. See EPA’s guide to finding your annual water quality report.
Public water-system records for Moraga, CA from EPA SDWIS.
City of Martinez
Active monitoring or reporting issue detected in EPA SDWIS.
Reviewed: active/open records as of Q1 2026
Purchased or imported water record · Serves 30,997 people
East Bay Mud
PFAS detected below the official threshold used by this report.
Reviewed: active/open records as of Q1 2026
City-area ZIP code · Serves 1,442,800 people
Contra Costa Water District
No active drinking-water issues detected in EPA SDWIS.
Reviewed: active/open records as of Q1 2026
City-area ZIP code · Serves 198,000 people
Data from EPA SDWIS
PFAS screening separates EPA UCMR5 drinking-water monitoring from nearby DoD PFAS investigation-site records; EPA samples shown are from Aug 2023 to Oct 2023.
Drinking Water PFAS Monitoring
EPA UCMR5 samples public water systems. These results are separate from nearby PFAS cleanup or investigation-site records.
PFAS detections below EPA limits.
Nearby PFAS Investigation Sites
DoD records are nearby site investigations, not Moraga drinking-water detections. Record names come from the source database and can be broad.
No DoD PFAS investigation records shown for this report.
EPA ATTAINS records identify assessed water bodies that do not meet water-quality standards for designated uses.
San Leandro Creek
Reported: Nov 2026
Health-relevant causes: Mercury, Pesticides, Polychlorinated Biphenyls (pcbs)
Affected uses: Ecological, Fishconsumption, Other
Data from EPA ATTAINS
To investigate water contamination, check the sampling locations, dates and results below. For tap water records, see Drinking water quality above.
Reviewed: source records as of 2026
Review historical EPA air pollution records, including monitoring and facility emissions where available. For current conditions, check local air quality on AirNow.
Contra Costa County
Assessment year: 2020
According to EPA, a cancer risk of 30-in-1-million means that for every 1 million people continuously exposed to these air toxics over a 70-year lifetime, an estimated 30 may develop cancer from that exposure. This is in addition to cancer risk from all other causes.
Top modeled source groups
Data from EPA AirToxScreen
EPA designates an area as nonattainment when air quality does not meet federal health-based standards (NAAQS) for a specific pollutant.
San Francisco Bay Area: Ozone
NonattainmentMarginal8-Hour Ozone (2015 Standard)
Original designation: Aug 2018
Health effects (EPA): Respiratory inflammation, aggravation of asthma, reduced lung function (EPA)
San Francisco Bay Area: PM2.5
NonattainmentModeratePM-2.5 (2006 Standard)
Original designation: Dec 2009
Health effects (EPA): Cardiovascular disease, respiratory illness, premature death (EPA)
Maintenance areas
Previously nonattainment; currently meeting the standard and monitored under an EPA maintenance plan.
San Francisco-Oakland-San Jose Area
CO · Carbon Monoxide (1971 Standard)
Classification: Moderate <= 12.7ppm
Original designation: Nov 1990
Current design value: 4.9 ppm (2023-2025)
Data from EPA Green Book
Reviewed: source query run Nov 2026
Reviewed: source query run Nov 2026
State environmental agencies maintain cleanup site databases that include state Superfund, voluntary cleanup, and brownfield remediation programs. These programs track additional sites beyond those on the federal NPL.
1 site with active cleanup or investigation
1928 St. Mary's Road, MORAGA
0.8 miles away · CONTRA COSTA County
Reported: Nov 2026
Data from EPA ECHO
No release reports shown in this group.
Reviewed: active/open records as of 2018
Data from EPA UST Finder
No MSHA mine or extraction site records shown for this report.
Contra Costa County, CA
EPA Radon Zone Map (June 2024 release)
Contra Costa County is EPA Radon Zone 2 (moderate potential). EPA defines Zone 2 counties as having predicted average indoor screening levels between 2 pCi/L and 4 pCi/L.
Radon levels can vary from home to home, so EPA recommends testing the property to know its indoor level.
FEMA flood zones describe mapped flood hazards. Look up a specific address with FEMA.
Minimal flood hazard — outside the 1% and 0.2% annual chance floodplains.
Results use an earlier stored RMP inventory. Current EPA ECHO location coverage is unverified.
No EPA ECHO RMP facility records with a usable location matched this city report.
PHMSA tracks incidents involving natural gas and hazardous liquid pipelines. Incidents include leaks, ruptures, and explosions.
No records dated within the last 5 years surfaced for this city report.
Reviewed: last 5 years
Data from PHMSA
Health outcomes from County Health Rankings. Values shown alongside state and national averages.
Contra Costa County, CaliforniaPop. 1,156,966
County Health Rankings edition: 2024
Premature Death
Poor or Fair Health
Poor Physical Health Days
Poor Mental Health Days
Adult Smoking
Adult Obesity
Air Pollution - Particulate Matter
Drinking water violation indicator
Diabetes Prevalence
Life Expectancy
| Indicator | County | State | National |
|---|---|---|---|
| Premature Death | 5,388 | 6,373 | 7,972 |
| Poor or Fair Health | 13.5% | 15.8% | 14.2% |
| Poor Physical Health Days | 3.1 | 3.1 | 3.3 |
| Poor Mental Health Days | 4.6 | 4.7 | 4.8 |
| Adult Smoking | 9.6% | 8.8% | 15.0% |
| Adult Obesity | 24.3% | 27.8% | 34.0% |
| Air Pollution - Particulate Matter | 7.8 | 7.1 | 7.3 |
| Drinking water violation indicator | Yes | N/A | N/A |
| Diabetes Prevalence | 9.1% | 10.8% | 9.6% |
| Life Expectancy | 81.6 | 79.9 | 77.6 |
EPA testing found PFAS in water samples from East Bay MUD. Results dated Aug 16, 2023 to Oct 24, 2023 include PFBA at 0.0051 to 0.0052 micrograms per liter.
Check with the utility that serves your address for its testing results.
EPA drinking water records on this page list 1 violation for the City of Martinez.
The EPA drinking water records available here list no violations for East Bay MUD.
The EPA drinking water records available here list no violations for Contra Costa Water District.
Check your water bill to identify the utility serving your address. Ask that utility about current drinking water advisories.
We don't have air monitoring measurements for Moraga yet.
The radon data for Moraga covers Contra Costa County. EPA places this area in Zone 2, with a predicted average indoor radon screening level of 2 to 4 picocuries per liter.
No Superfund or brownfield sites were returned for this city report.
The county data for Moraga reports a life expectancy of 81.6 years in Contra Costa County, California.
The figure is from the 2024 edition of County Health Rankings, a University of Wisconsin program that publishes county health statistics.
The county data for Moraga reports 5,388 years of life lost to deaths before age 75 per 100,000 residents in Contra Costa County, California. This measure adds up the years lost to early deaths and adjusts for differences in population age.
The figure is from the 2024 edition of County Health Rankings, a University of Wisconsin program that publishes county health statistics.
The county data for Moraga lists fine-particle pollution (PM2.5) at 7.8 micrograms per cubic meter in Contra Costa County, California.
The figure is from the 2024 edition of County Health Rankings, a University of Wisconsin program that publishes county health statistics.
Federal pipeline records list an incident involving Pacific Gas & Electric Co near Moraga on Mar 13, 2016. The reported release was natural gas.