City · TRI 2024

Shoshone, California Pollution

0 TRI facilities inside the city limits and 1 public water system serving residents.

FIPS 0671680 · population 23 · Inyo County

Anomaly engine

Notable Signals

UNRESOLVED VIOLATION · SDWIS VIOLATION

Contaminant 5000

Unresolved Phase I/II/V Inorganic Chemical Rules violation cited in 2024 (contaminant 5000).

EPA SDWIS record

UNRESOLVED VIOLATION · SDWIS VIOLATION

Contaminant 5200

Unresolved Phase I/II/V Inorganic Chemical Rules violation cited in 2024 (contaminant 5200).

EPA SDWIS record

Pollutant pathways

Shoshone Pollutant Multi-Year Trends

CRITERIA AIRSINCE 2010

PM2.5 annual mean (NAAQS 9 µg/m³ (annual))Health riskFine inhalable particles 2.5 micrometers or smaller. They travel deep into the lungs and into the bloodstream — linked to asthma, heart disease, stroke, and premature death.

5.27 µg/m³ · +2% YoY · -39% since 2010

PM2.5 annual mean (NAAQS 9 µg/m³ (annual)) concentrations have fallen 39% since 2010.

CRITERIA AIRSINCE 2010

PM2.5 24-hour 98th percentile (NAAQS 35 µg/m³ (24-hour))Health riskFine inhalable particles 2.5 micrometers or smaller. They travel deep into the lungs and into the bloodstream — linked to asthma, heart disease, stroke, and premature death.

16.80 µg/m³ · +24% YoY · -74% since 2010

PM2.5 24-hour 98th percentile (NAAQS 35 µg/m³ (24-hour)) concentrations have more than halved since 2010.

CRITERIA AIRSINCE 2010

Ozone 8-hour 4th-highest daily max (NAAQS 0.070 ppm (8-hour))Health riskGround-level ozone (smog) forms when vehicle and industrial emissions react in sunlight. Inflames the airways, triggers asthma attacks, and worsens heart and lung disease.

0.059 ppm · -2% YoY · -25% since 2010

Ozone 8-hour 4th-highest daily max (NAAQS 0.070 ppm (8-hour)) concentrations have fallen 25% since 2010.

HAZARDOUS AIR2020 VINTAGE

Lifetime cancer risk all pollutants (100 in a million (EPA elevated threshold))Health riskEPA-modeled added cancer cases per million residents from a lifetime of breathing local air toxics. EPA flags 100-in-a-million as elevated.

16.7 per million · 2020 vintage

Single-vintage exposure modeling — EPA cadence is multi-year, so no trend line yet.

HAZARDOUS AIR2020 VINTAGE

Formaldehyde ambient mean (0.077 µg/m³ (1-in-a-million URE))Health riskAn air toxic emitted by refineries, wood products, and combustion. EPA classifies it as a known human carcinogen — long-term inhalation raises cancer risk.

0.78 µg/m³ · 2020 vintage

Single-vintage exposure modeling — EPA cadence is multi-year, so no trend line yet.

HAZARDOUS AIR2020 VINTAGE

Benzene ambient mean (0.13 µg/m³ (1-in-a-million URE))Health riskAn air toxic from gasoline, refineries, and tobacco smoke. A known human carcinogen — chronic exposure is linked to leukemia and other blood cancers.

0.06 µg/m³ · 2020 vintage

Single-vintage exposure modeling — EPA cadence is multi-year, so no trend line yet.

TRI AIR2024 VINTAGE

TRI air releases (5.1 fugitive + 5.2 stack)Health riskToxic chemicals reported by industrial facilities as released into the air — fugitive leaks plus smokestack emissions. Higher pounds means more inhaled exposure for nearby residents.

0 lb · 2024 vintage

Single-vintage exposure modeling — EPA cadence is multi-year, so no trend line yet.

TRI WATER2024 VINTAGE

TRI water releases (5.3)Health riskToxic chemicals reported by industrial facilities as discharged to surface waters (rivers, lakes, the ocean). Affects fishing, recreation, and downstream drinking-water intakes.

0 lb · 2024 vintage

Single-vintage exposure modeling — EPA cadence is multi-year, so no trend line yet.

TRI LAND2024 VINTAGE

TRI land + off-site releasesHealth riskToxic chemicals released to land on-site or transferred off-site for disposal — landfills, deep-well injection, and similar. Risks groundwater contamination over time.

0 lb · 2024 vintage

Single-vintage exposure modeling — EPA cadence is multi-year, so no trend line yet.

Drinking water · SDWIS

Water Systems Serving Shoshone

7 unresolved violations on the SDWIS record across utilities serving this city.

SDWIS · 5-YR WINDOW
1

Utilities serving

SDWIS · 5-YR WINDOW
242

Population served

SDWIS · 5-YR WINDOW
3

Health-based · 5yr

SDWIS · 5-YR WINDOW
7

Unresolved

Water systemPWSIDPopulation servedHealth-based · 5yrStatus
Charles Brown Water Company PrivateCA14000042423UNRESOLVED

A public water systemis the regulated entity, not the city. EPA's SDWIS definition covers anything serving 25+ people for 60+ days a year or with 15+ service connections — that includes municipal utilities (City of Stockton), water districts, mobile home parks operating their own wells, schools, and small private subdivisions. Each system is independently monitored. Some systems serve multiple cities; some cities are served by many systems.

Equity context · ACS 2018-2022 · USEPA-clone EJ disparity

Who Lives In Shoshone

Shoshone, California (Census place block groups): 23 residents. Why we surface this →

POPULATION SHARE
0.0%

Low-income

POPULATION SHARE
0.0%

People of color

POPULATION SHARE
0.0%

Under age 5

POPULATION SHARE
69.6%

Over age 64

Source: Census ACS 2018-2022 (5-year) + USEPA-clone EJ blockgroup stats (raw indicators + EJ disparity mirror).

Sources.