Engineered Solutions of Georgia

Consulting Geotechnical Engineers

Environmental Science

Construction Management & Inspection

Construction Materials Testing

Hydrogeology/Groundwater Monitoring

Earth Instrumentation Services

CCG

5871 New Peachtree Road

Doraville, GA 30340-1084

Phone: 770/457-9776

Fax: 770/457-9964

Chattahoochee Consulting Group, Inc.

November 28, 2016

Project Number: 4754.002.16

Engineered Solutions of Georgia

2260 Northwest Parkway

Suite H

Marietta, GA 30067

Attention: Mr. Chuck Irby

RE: Report of Geotechnical Exploration

The Aberdeen on Paces Ferry

2700 Paces Ferry Road

Vinings, Georgia

Gentlemen:

Chattahoochee Consulting Group, Inc. (CCG) is pleased to present this proposal for geotechnical

engineering services.

PROJECT BACKGROUND

We understand that the high-rise condominium structure was completed in 2009 and is primarily

supported on pile foundations based on a review of the structural drawings for the building.

Based on our visual observations, apparent settlement is evident primarily along the front,

northeast portion of the building. Outward deflection of the free-standing retaining wall

structures within this area, as well as distress of the pavements between the loading dock and

lower parking garage was noted, including the areas around the two drop inlet structures.

Additionally, significant distress was noted at the entrance of the lower parking garage and the

adjacent electrical room enclosed by masonry walls. Our review of the architectural plans

prepared by Smallwood, Reynolds, Stewart, Stewart and Associates, Inc. and the structural plans

prepared by Stanley D. Lindsey, Ltd., indicate that the front (north) and the front portion of the

east side wall of the electrical room are supported by a foundation wall which is not pile

supported, (see Figure 3). Additionally, a below grade storm water detention vault, 16 feet deep,

is present below the parking deck near this area. It appears that the settlement observed is due to

consolidation of the backfill soils in this area. Review of the report from a ground penetrating

radar (GPR) investigation, performed by GPRS, Inc. dated May 7, 2016, reported several areas