Environmental Risk Report for Los Alamos County, New Mexico
Comprehensive environmental hazard assessment
Coordinates: 35.8693°N, 106.3065°W • FIPS: 35028
Risk Assessment for Los Alamos County, New Mexico
About Los Alamos County, New Mexico
Los Alamos County is a county in NM known for its semi-arid to arid climate with extreme summer heat. The mountainous terrain offers stunning landscapes but introduces challenges including wildfire risk, landslides, and extreme winter weather.
Our risk scores for Los Alamos County are calculated using data from the Federal Emergency Management Agency (FEMA) National Risk Index, the U.S. Geological Survey (USGS) earthquake databases, the Environmental Protection Agency (EPA) AirNow program, and the National Weather Service (NWS) alert system. These federal datasets provide comprehensive coverage of natural and technological hazard exposure.
Notable historical events affecting this area include the 2000 Cerro Grande Fire (47,650 acres, destroyed 235 structures in Los Alamos); the 2022 Hermits Peak–Calf Canyon Fire (341,735 acres, largest wildfire in NM history). These events underscore the importance of environmental risk awareness and preparedness for residents and property owners.
Notable Historical Events in New Mexico
Understanding Risk Factors for Los Alamos County
🌊 Flood Risk
Flood risk in Los Alamos County is assessed using FEMA flood zone data, historical flood events, and proximity to water bodies. Areas near rivers, coastlines, and low-lying regions typically face elevated flood potential. Local topography and drainage infrastructure play a significant role in determining neighborhood-level risk.
🔥 Wildfire Risk
Los Alamos County is situated in a region with high wildfire potential due to seasonal dry conditions, abundant vegetation, and terrain that can accelerate fire spread. Recent fire seasons have grown longer and more intense due to drought conditions and rising temperatures. Local fire departments and CalFire (or equivalent) maintain constant vigilance during peak fire season.
💨 Air Quality
Air quality monitoring in Los Alamos County draws from EPA AirNow sensors measuring particulate matter (PM2.5), ozone levels, and other pollutants that affect respiratory health. Seasonal variations and agricultural or industrial activity can influence local air quality.
🌡️ Extreme Heat
Los Alamos County experiences extreme heat events with heat indices regularly exceeding 110°F during summer months. Urban heat island effects can make city centers significantly hotter than surrounding areas. Heat-related illness is a serious public health concern, particularly for vulnerable populations.
🏜️ Drought Risk
Los Alamos County faces recurring drought conditions that strain water supplies, increase wildfire risk, and affect agriculture. Multi-year droughts have become more frequent, with reservoir levels reaching historic lows. Water conservation measures are a permanent part of life in this arid region.
⛰️ Landslide Risk
Los Alamos County's mountainous terrain creates landslide and debris flow risk, especially during heavy rain events or rapid snowmelt. Steep slopes, unstable soils, and areas burned by wildfire are particularly susceptible to landslides.
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