Support Surveys for Wildwood Air Force Station Remediation Kenai, Alaska
We updated plan drawings through each phase of the project, up to and including the final as-built drawings.
A primary control network was established throughout the project area using a static Global Positioning System (GPS) solution and differential leveling methods. Site specific secondary control surveys were conducted with both Real Time Kinematic (RTK) GPS and conventional surveying methods.
Three survey sites contained petroleum-contaminated soils. Two of these sites were excavated and backfilled with clean soil. The third site required an air sparging/soil vapor extraction (AS/SVE) system. The installation of this system demanded considerable crew time. The layout and final as-built survey were performed almost exclusively with RTK GPS.
Two sites contained lead-contaminated soils and possible unexploded ordnance. Each survey required specific excavation criteria and handling. We carefully surveyed these sites using conventional and GPS methods.
The final two sites were open landfills requiring backfill materials, certain drainage criteria, and a final "clay cap." One of these sites covered approximately five acres and required several grade-staking efforts. Upon final grading, the second site consisted of a series of nine trenches requiring a U.S. Army Corps of Engineers "Type A - Deep Rod Monument" to be set at both ends of each trench for a total of 18 monuments. These sites were surveyed using RTK GPS.
Our surveyors were required to possess current Hazardous Waste Operations and Emergency Response (HAZWOPER) certification for this project.
- As-Built Surveys (Non-Residential)
- Control Surveys
- Locative Surveys
- Map and Plat Production
- Pre/Post Excavation Surveys
- Topographic Surveying and Mapping