California Development Project Blocked by Federal Judge
A federal judge has halted a planned 314-acre mixed-use development in California. This decision came after environmental groups filed a lawsuit claiming the project would lead to significant losses in local wetlands and spring pool habitats, potentially endangering species that include rare and endangered flowers.
Judge Daniel Calabretta’s ruling regarding the proposed Stonegate development in Chico criticized the government’s 2020 approval process, describing it as “at least partially arbitrary and whimsical.” He indicated that work cannot proceed until a “legally appropriate biological opinion” is complete.
Calabretta emphasized that the locations outlined for the project host seasonal spring pools and wetlands. These areas are wet during the rainy season but dry out in summer and autumn. He noted that spring pools are vital for various wildlife and that the genetic diversity among species within a single spring pool is distinct from pools nearby, which highlights the importance of connectivity for genetic exchange.
Among the species mentioned is the Butte County meadowfoam, a plant only found in Vernellpur habitat in Butte County and listed as endangered since 1992 under the Endangered Species Act (ESA). The lawsuit also raised concerns regarding other threatened species like the Vernellpur fairy shrimp and giant garter snakes.
The Stonegate project aims to include 423 detached home lots, mixed-use properties for multifamily housing, commercial land use, and designated open spaces, among other features. However, the ruling pointed out that the project, if completed, would destroy more than 9 acres of wetlands, even though some mitigation efforts could establish new pasture habitats.
In his decision, Calabretta highlighted a biological opinion published by the US Fish and Wildlife Service in early 2020. He noted that while the opinion acknowledged some ESA-listed species might be in danger, it ruled that the project would not jeopardize the survival or recovery of listed species like fairy shrimp, tadpole shrimp, and meadowfoam. However, he pointed out that the potential effects on giant garter snakes were not properly analyzed.
The lawsuit was pursued by Aqualliance and the Biological Diversity Center, who argued that climate change impacts on species protected by the ESA weren’t adequately considered. Judge Calabretta affirmed this, citing that while biological opinions reference documents discussing climate change, they do not comprehensively dissect or incorporate these findings into their analyses.
Moreover, the court indicated that the assumption regarding the absence of giant garter snakes within a five-mile radius of the project site was fundamentally flawed. This oversight underscores the complexities inherent in such ecological assessments, raising further questions about the project’s potential consequences.

