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Review government records associated with Greenfield, California.
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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 Greenfield, CA from EPA SDWIS.
Greenfield, City of
Active monitoring or reporting issue detected in EPA SDWIS.
Reviewed: active/open records as of Q1 2026
City listed in EPA records · Serves 18,967 people
Data from EPA SDWIS
Reviewed: source records as of Q1 2026
EPA UCMR5 — No PFAS detection records shown for these water systems
Open data source: EPA UCMR5DoD PFAS — No investigation records shown for this report
Open data source: DoD PFASNo health-relevant impairment records shown among the assessment records in this report.
Reviewed: source records as of 2026
Reviewed: source records as of Q4 2025
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.
Monterey County
Assessment year: 2020
According to EPA, a cancer risk of 40-in-1-million means that for every 1 million people continuously exposed to these air toxics over a 70-year lifetime, an estimated 40 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
No EPA nonattainment designation records shown for this report.
EPA annual monitor summaries describe past measurements. For current air quality, see AirNow.
King City 2
Annual mean: 0.035 Parts per million
Observation year: 2025
Annual mean: 23.1 Micrograms/cubic meter (25 C)
Observation year: 2025
Annual mean: 5.1 Micrograms/cubic meter (LC)
Observation year: 2025
Data from EPA AQS
Reviewed: source records as of Q4 2025
Reviewed: source query run Nov 2026
Brownfield sites are properties where redevelopment is complicated by the presence of hazardous substances.
Open data source: Search EPA ECHO1 site with active cleanup or investigation status
490 El Camino Real, Greenfield
Reported: Feb 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
490 El Camino Real, Greenfield
0.3 miles away · MONTEREY 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
Sites regulated by the Mine Safety and Health Administration, including mines, sand and gravel operations, and portable crushers. Status and type are from the MSHA Mine Data Retrieval System. Records with active/intermittent status dates older than 5 years are shown as older records rather than current active sites.
No records shown in this group.
Reviewed: status dates within last 5 years
Data from MSHA
Monterey County, CA
EPA Radon Zone Map (June 2024 release)
Monterey 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.
No FEMA flood-zone records shown for this report.
Results use an earlier stored RMP inventory. Current EPA ECHO location coverage is unverified.
EPA ECHO lists facilities linked to the Risk Management Program. Results include facilities with locations that can be matched. Records may be historical. Current operations, chemical inventories, and recent accident history are unverified.
Reviewed: 2000-present
Health outcomes from County Health Rankings. Values shown alongside state and national averages.
Monterey County, CaliforniaPop. 432,858
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 | 5,768 | 6,373 | 7,972 |
| Poor or Fair Health | 20.1% | 15.8% | 14.2% |
| Poor Physical Health Days | 3.8 | 3.1 | 3.3 |
| Poor Mental Health Days | 5.3 | 4.7 | 4.8 |
| Adult Smoking | 12.4% | 8.8% | 15.0% |
| Adult Obesity | 27.5% | 27.8% | 34.0% |
| Air Pollution - Particulate Matter | 5.5 | 7.1 | 7.3 |
| Drinking water violation indicator | Yes | N/A | N/A |
| Diabetes Prevalence | 11.3% | 10.8% | 9.6% |
| Life Expectancy | 81.3 | 79.9 | 77.6 |
This report does not have PFAS sample results for the candidate water systems in Greenfield.
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 Greenfield, including 1 marked active.
Check your water bill to identify the utility serving your address. Ask that utility about current drinking water advisories.
Nearby EPA monitoring stations provide annual air quality measurements for Greenfield.
The monitoring station at King City 2 recorded an annual average of 0.035 Parts per million for ozone in 2025.
The monitoring station at King City 2 recorded an annual average of 23.1 Micrograms/cubic meter (25 C) for particles (PM10) in 2025.
The monitoring station at King City 2 recorded an annual average of 5.1 Micrograms/cubic meter (LC) for fine particles (PM2.5) in 2025.
The radon data for Greenfield covers Monterey 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 sites were returned for this city report.
This city report shows 1 brownfield site: Reconstruction of Mary Chapa and El Camino Real Sc.
The county data for Greenfield reports a life expectancy of 81.3 years in Monterey 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 Greenfield reports 5,768 years of life lost to deaths before age 75 per 100,000 residents in Monterey 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 Greenfield lists fine-particle pollution (PM2.5) at 5.5 micrograms per cubic meter in Monterey County, California.
The figure is from the 2024 edition of County Health Rankings, a University of Wisconsin program that publishes county health statistics.