Celanese Stormwater Inlet Mapping

Thompson & Litton (T&L) was retained by Celanese Acetate, LLC to provide professional surveying services to develop mapping of the Celanese Stormwater system.

T&L’s services included:

1. Aerial Mapping Scope of Work: T&L teamed with Quantum Spatial, Inc. to produce digital topographic aerial mapping of approximately 2800 acres.

2. Field Survey Scope of Work: T&L performed field location of approximately 250-300 stormwater inlets as well various dikes and berms including reconnaissance, individual structure sketches, and visible labeling of the structures for subsequent field location. Field location was provided by either conventional survey and/or GPS means of each structure. The location provided an X, Y, & Z value of each structure.

3. Final Mapping Compilation/Deliverables Scope of Work: T&L performed field annotation of the aerial mapping product, a separate QA/QC site walk through performed by a Licensed Virginia Land Surveyor, and a final office QA/QC prior to delivery to Celanese.

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