ASTM E1527-21 Standard for Phase 1 Environmental Site Assessment
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ASTM E1527-21 Standard for Phase 1 Environmental Site Assessment

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…

City of Los Angeles Methane Mitigation Standards
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City of Los Angeles Methane Mitigation Standards

City of Los Angeles Methane Mitigation Standards The City of Los Angeles Methane Mitigation Standards and Plans are a basic tool to help designers prepare a methane mitigation plan for small projects within Methane Zones. However, the standard plans alone aren’t enough to pass for a proper mitigation plan. For example, the standards lack material…