Waterproofing Barrier System Definition A waterproofing barrier system guarantees full protection to walls, foundations, and methane mitigation systems that are below grade and are susceptible to moisture penetration. Typically, the best way to protect a retaining wall against moisture is the application of a waterproofing barrier on the backside of it, after pouring concrete, but…
Torrance, CA Quadrangle 2018 USGS 7.5 Minute Topo Map To download the Torrance, CA Quadrangle 2018 USGS 7.5 Minute Topo Map, please use the link below. PDF Download – Torrance, CA Quadrangle 2018 USGS 7.5 Minute Topo Map
USGS 7.5 Minute Long Beach, CA Quadrangle 2018 Topo Map To download the 2018 United States Geological Survey USGS 7.5 Minute Long Beach, CA Quadrangle Topo Map, please use the link below. PDF Download – USGS 7.5 Minute Long Beach, CA Quadrangle 2018 Topo Map
ASTM E1527-21 Standard Phase 1 Environmental Site Assessment Quarter four of the year 2021 entails an update to the ASTM Standard for Phase 1 Environmental Site Assessment reports. The current ASTM standard for a Phase 1 ESA is “E1527-13.” Per a mandatory revision cycle, version E1527-21 proposes modern strategies to assess new and existing human…
Geology of the Chinatown Area in Los Angeles, California & Hydrogeology This post summarizes the geology of the Chinatown region, of Downtown Los Angeles California. Some geological and hydrogeological data may be incomplete or pending review. Nonetheless, students, geologists, and earth scientists are welcome to openly use, critique, and contribute information. To do so, please…
