GeoCapitol is managing and providing materials testing and inspection services as-needed during the construction of improvements to the Blue Plains Water Treatment facility as part of their Biosolids Management Program. This program consists of construction of three separate, but related facilities to process biosolids more effectively and efficiently. The three facilities include the Main Processing Train, the Combined Heat and Power Facility, and the Final Dewatering Facility which are being constructed concurrently. As needed, GeoCapitol provides DCRA-Certified Third Party Inspectors to provide soil, concrete, and steel quality control testing services required to confirm the contractors are constructing the facilities in accordance with the approved plans and specifications.
The needs of each project vary significantly depending on the specific tasks that are being completed. Full-time services were required during the construction of the Combined Heat and Power Facility and part-time services were required for the Final Dewatering Facility and the Main Processing Train Facility. Additionally, due to an accelerated schedule, these inspections were frequently completed at night which saved additional costs for the client.
GeoCapitol provided geotechnical engineering services for Atlantic Gardens and Atlantic Terrace Apartments II. Proposed development included renovating three-story brick apartment buildings including a new community room, a BBQ area adjacent to the playground, high-quality landscaping, and complete interior unit rehabilitations including floor repair/replacement, new kitchens and bathrooms, and an elevator.
Subsurface conditions were investigated by drilling a total of 19 test borings, 19 auger probe offset infiltration holes, one hand auger and excavating two test pits. Recommendations were provided regarding foundations, lateral earth pressures, earthwork, and infiltration structures.
GeoCapitol provided environmental services during construction of the mixed-use development which will include a 271-unit residential project with approximately 9,000 SF of street-level retail, and below street-level structured parking. The mixed-use and amenity spaces will include a fitness center, community rooms, landscaped plazas, and a green roof and pool on top of the building.
GeoCapitol observed and monitored for petroleum and other contaminants during soil excavation. Soil was monitored with a photoionization detector (PID) to detect the presence of volatile organic compounds, as well as visual and olfactory screening to help aid in differentiating contaminated areas from non-contaminated areas. GeoCapitol’s staff worked promptly in meeting deadlines during construction of the targeted LEED certified building.
The National Association of Broadcasters (NAB) will construct its new headquarters building in the Capitol Riverfront neighborhood of Washington, DC. The project will include the 130,000 SF NAB building and an adjacent Metro structure. Construction of the 10-story building will feature a curved facade facing M Street, a conference center on the top two floors, a rooftop terrace and a 100 seat theater. The site will be a showcase venue for radio and television stations across America.
GeoCapitol provided geotechnical engineering design services which included a subsurface investigation with three soil test borings. Soil samples obtained from the test borings was screened with a Photoionization Detector (PID) to detect the presence of volatile organic compounds (VOCs). Additionally, GeoConcepts also conducted a Ground Penetrating Radar (GPR) survey on portions of the site to scan for underground storage tanks. Preliminary recommendations were provided regarding foundations, subdrainage, excavation support, earthwork, and the adjacent Metro structure.