SPECIAL PUBLICATION NO. 57


 f. Differences in floor coverings should be accounted for.

 i. Paired measurement points located at floor-covering transitions.

 ii. Field notes should indicate the nature and thickness of floor
 coverings.

 g. Results reported through properly contoured map with accurate scale and
 elevation representations. The base location and transitions in constructed
 floor elevations (sunken rooms, elevated rooms, etc.) should be indicated.

 h. The results of the contour map should be compared to tolerances in floor
 elevation allowed by the building code prevalent at the time of
 construction of the structure.

7. Subsurface Geotechnical Testing & Geological Interpretations

 a. Locations of all boreholes, soundings, and other testing activities to be
 reported.

 i. A control site or tie-back hole should be established for
 comparisons of anomalous results. In densely populated urban
 settings this may be difficult to access or not feasible due to
 overall scale of the feature vs. lot size.

 ii. Discuss why each testing site or line was selected.

 iii. Hole locations should be carefully located and measurements
 necessary to allow for relocation of the test holes should be
 indicated in the report.

 b. All soil testing procedures should follow ASTM methods or other
 published procedures. Again professional judgment prevails and should be
 explained.

 c. If there is more than one foot of relief on the site, a leveling device should
 be used to determine the relative elevations of each test hole. The
 benchmark used for these levels should be a permanent feature on the lot
 that can be easily located for future investigation.

 d. Dynamic penetration tests, such as; the Standard Penetration Testing
 (SPT), Baecher penetration test (BPT), and dynamic cone penetration test
 (DCPT).

 i. SPT location criteria.

 1. Locations identified by the geophysical investigation as
 anomalous features.