Methane Zone Map of Los Angeles
The Methane Zone Map of Los Angeles is a digital map for determining a site’s proximity to methane zones and methane buffer zones. Additionally, there are various LA City databases which document each zone location. In fact, the City of Los Angeles, Bureau of Engineering, Department of Building and Safety publishes Methane Zone information for all areas within the city limits.
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This map is bases the locations of methane zones and methane buffer zones, using the coordinates of oil and gas wells. Additionally, historical and current landfill areas are a basis for this map. For example, a property with an oil well onsite is likely a methane zone property. Whereas a property 500 feet away from an oil well is likely a methane buffer zone site.
Soil gas sampling intends to study subsurface vapor phase contamination. The goal is to identify any risk of explosive or hazardous chemical gas, which can migrate easily inside buildings. The fieldwork aspect of these test comprises of drilling at multiple locations and installing soil vapor implants at strategic intervals. Furthermore, soil gas probes undergo sample collection after a reasonable equalibriation time. And a final laboratory analysis aids the lead geologist in data collection for conclusions and recommendations.
What does this mean?
The areas in pink coloring are methane zones. Equally important, the areas in purple coloring are methane buffer zones. Moreover, the areas with yellow coloring are LA City properties which do not fall within methane zones or methane buffer zones.