September 8, 2021 Update
- Monitoring and reporting of HA-2 remedy effectiveness is ongoing. In accordance with the HA-2 Operations, Maintenance, and Monitoring Plan, monitoring and reporting of the remedy began in 2020 and is ongoing under oversight of the DTSC.
- Monitoring and maintenance of HA-2 habitat restoration is ongoing. As required by the HA-2 Mitigation and Monitoring Plan, maintenance (weed removal) and monitoring of habitat restoration is ongoing under oversight of the permitting agencies. Habitat restoration included planting of native species across HA-2 including willows, shrubs, and hydroseeding of grasses and wetland plants.
- An environmental covenant was recorded to protect HA-2. In July 2021, as required by the HA-2 project permits and HA-2 Mitigation and Monitoring Plan, an environmental covenant was recorded for the benefit of the Regional Water Quality Control Board which imposes property use restrictions to ensure that HA-2 will be retained in its natural, open-space condition and for the existing habitat resources to be maintained.
What is the HA-2 Project?
Remediation and restoration of two lagoons (former evaporation ponds) known as “Habitat Area 2” is an important step in cleanup of the former Zeneca property. The project was approved by DTSC in June 2017 after consultation with several federal, state, and local agencies, including:
- Bay Conservation and Development Commission
- East Bay Regional Park District
- Regional Water Quality Control Board
- California Department of Fish and Wildlife
- U.S. Fish and Wildlife Service
- U.S. Environmental Protection Agency
