20220233 SSUUSTSTAAINAINABBILITILITY REY REPPORORTT One project’s commitment to environmental stewardship includes 30 sheep and a cemetery Message from Management TIC – The Industrial Company, a subsidiary of Kiewit 1. Overview Corporation, reached substantial completion of Dominion Energy’s Piney Creek solar project in Virginia on Aug. About Kiewit 15, 2023. From early permitting and site clearing, to final Sustainability at Kiewit stabilization, the project team had many environmental Our Projects priorities on the project. Pictured left: This was the only legible tombstone the team discovered at the gravesite. It Planning and early works belonged to a former pastor of a local church, which is still active today. The church has been 2. Governance notified of the discovery. The project site was previously a re-plantable timber farm Pictured above: When viewing the site from above, you can see where solar arrays were Corporate Governance where pine trees were grown and then harvested every repositioned – circled in black on the image – to avoid disturbing a cemetery that was Supply Chain 10 years. The team found an opportunity to go beyond discovered when work began. contractual requirements and clear the site in a more 3. Environmental environmentally friendly manner. All the pine trees were Environmental Stewardship harvested and sent to a mill to make plywood, lumber and impacted solar block was redesigned to ensure habitat for pollinators. After restabilization, the entire chips. Then all the remaining roots were cleared and sent the cemetery site remained accessible and undisturbed. footprint of the project is a mix of grass stabilization, Greenhouse Gases & to either a wood mill to make plywood or to a wood-fired Energy Consumption Welcome to the (solar) farm pollinator species and the exterior forest. power plant nearby. 4. Social As blocks of solar panels became mechanically complete, Where possible, natural vegetation was used as a bu昀昀er vegetation beneath them needed to be maintained. Health & Safety instead of a silt fence. Instead of fencing the entire site, the Dominion shared a best practice from its existing solar Diversity, Equity & Inclusion team only fenced around the arrays. The remaining areas facilities: have sheep graze the land instead of mowing it. were left natural and easier to navigate for native animals The project team worked with a local farmer to bring 30 Talent & Workforce like bears and deer. The team leaned on outside experts to Development sheep to the site. The farmer continued to provide care help with bird and bat surveys to ensure compliance with for the sheep. Community Engagement contractual and permitting requirements. Restabilization Appendix An unexpected find As the project reached its final stages, attention turned When work began, signs of a previously undisclosed to achieving 100% stabilization of the site. cemetery were found. The team worked with the client, Virginia Department of Historical Resources, and a local Referring to best practices to identify native plants and Sheep graze beneath operating solar panels at the Piney Creek archaeological expert to evaluate and secure the area. The pollinators in Virginia, the team established a beneficial project in Virginia. 3535