Altfillisch Construction

Hal Hays Construction, also known as HHCI, offers site preparation and demolition services. The company provides civil engineering construction solutions. It undertakes projects for hospitals and federal government and military agencies. Hal Hays Construction offers excavation, grading, and environmental remediation and restoration services. It also provides fire and campground rehabilitation solutions. The company offers obliteration and decommissioning services. Hal Hays Construction provides land clearing and flood and erosion control solutions. It additionally offers design and build services. The company has undertaken projects for the Department of Veteran Affairs, Department of Homeland Security, and California Department of Forestry and Fire Protection.

Pacific Advanced Civil Engineering, also known as PACE, is a water resource engineering firm. Its areas of technical expertise include stormwater management, recreational water features and environmental water. The firm s stormwater management division provides floodplain mapping, river engineering, stormwater quality control and assessment, sediment transport, stream mechanics, watershed hydrology analysis, fluvial geomorphology, and wetland creation and restoration services. PACE designs water features that include manmade lakes, community pool systems, and streams and waterfalls. The firm additionally designs water and wastewater treatment and sewer pumping facilities. It has partnerships with Pacific Aquascape and PERC. PACE maintains a location in Fountain Valley, Calif.