A soil sample was taken from a proposed cut area in a highway construction project and sent to a soils laboratory for a compaction test, using the Standard Proctor compaction procedure. Results of the test are as follows:
Maximum dry unit weight = 112.6 lb/ft^3
Optimum moisture content = 15.5%
The contractor, during construction of the soil embankment, achieved the following:
Dry unit weight reached by field compaction = 107.1 lb/ft^3
Actual water content = 16.0%
Determine the percent compaction achieved by the contractor.