HPG & Co Consulting Engineer

HPG & Co Consulting Engineer is an engineering consultant in Columbia, SC, providing specialized services in water resources, wastewater systems, storm water management, roadway design, streetscapes, site development, and related planning and administrative support. The firm serves municipalities, counties, public service districts, nonprofit water and sewer companies, and select private sector clients across SC. With over 60 years of combined experience among its principals, HPG & Co Consulting Engineer offers comprehensive engineering solutions, including hydraulic analysis, system planning, grant and loan administration, and utility rate studies. The company has been based in Columbia since its founding in January 1994, maintaining a central office at 1627 Richland Street.

The firm emphasizes creative problem-solving and personalized service, combining the expertise of larger engineering firms with the responsiveness of a smaller organization. It specializes in the engineering and management of water supply and distribution systems, wastewater collection and treatment, storm water systems, and infrastructure development. Services include system evaluations, hydraulic modeling, treatment facility design, pump station planning, and compliance support for environmental regulations such as NPDES permits. The company also supports clients in securing funding through grant and loan applications and in conducting utility rate studies.

The business is located on Richland Street in Columbia, SC, near several historic and civic landmarks. It sits within a short distance of the Seibels House, Seibels Garden, Seibels Carriage House, and An Enduring Landmark, all within a few hundred meters. A clinic, UCI Medical Affiliates, Inc., is located about 0.1 miles away. The office’s central location provides convenient access to state regulatory and funding agencies.

HPG & Co Consulting Engineer is known for its long-standing client relationships, with much of its work originating from repeat clients. The firm has built a reputation for delivering tailored engineering solutions across SC’s public and private sectors, combining technical expertise with dedicated client service. Its consistent focus on infrastructure needs in water, wastewater, and transportation reflects its deep integration into the region’s development landscape.