Somach Simmons and Dunn, Attorneys at Law Somach Simmons & Dunn | Attorneys at Law



  • DePaul University College of Law (J.D., 2020)
  • University of California, Davis (B.S., Environmental Toxicology, 2016)


  • California

Krisha Yadav-Ranjan
LinkedIn Bio

Krisha Yadav-Ranjan draws upon her experience in civil and environmental litigation and background in toxicology to support client cases where a scientific perspective is an important complement to the practice of law.

Prior to joining Somach Simmons & Dunn, Krisha handled litigation cases at two southern California law firms, worked with the in-house counsel team of a biotechnology company, and drafted patent applications for inventions developed by medical professionals. She also worked as a research scientist at the Office of Environmental Health and Hazard Assessment in California’s Environmental Protection Agency in Sacramento. There she prepared research and monitoring programs to address ambient airborne pesticide pollution afflicting rural environmental justice communities.

While attending DePaul University College of Law, Krisha was selected as lead article editor of the Journal of Health Care Law and represented her school at the Giles Sutherland Rich moot court competition. During her undergraduate studies in Environmental Toxicology at the University of California, Davis, Krisha served as president of MEDLIFE at UC Davis, and founder of the student organization, Womxn in STEM, a group dedicated to supporting gender-diversity within the STEM fields.

Outside of work, Krisha enjoys tending to her garden, playing tennis with friends, exploring local thrift or vintage stores, and practicing yoga.

Representative Matters

Supported representation of Klamath water users in federal district court lawsuits challenging the Section 7 consultations on Klamath Project operations.

Represented the City of Yuba City, Solano County Water Agency, and Napa County Flood Control and Water Conservation District in their state court action against the California Department of Water Resources alleging a breach of their State Water Project contracts’ Table A Allocation and carryover storage provisions.

Provide ongoing regulatory and legal advice to publicly-owned treatment works, including evaluating, negotiating, and obtaining National Pollutant Discharge Elimination System permits issued by regional water quality control boards.

Assist with representing clients’ interests in responding to California Department of Water Resources’ Environmental Impact Report for the Delta Conveyance Project.

Represent public and private clients in environmental litigation under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), the Rural County Representatives of California (RCRA), the Porter-Cologne Water Quality Control Act, and the Hazardous Substances Account Act.

Counsel clients regarding the application of and potential liability under CERCLA, Hazardous Substances Account Act, and RCRA.

Recent Articles

Biden Administration’s Final Endangered Species Act Regulations Set to Take Effect on May 6

On March 28, 2024, the U.S. Fish and Wildlife Service (FWS) and the National Marine Fisheries Service (NMFS) (collectively, the “Services”) finalized revisions to regulations that implement Section 4 and ... Read More

California Appellate Court Determines That the “Pay First” Rule Applies to SGMA Fee Lawsuits

The Fourth District Court of Appeal has ruled in Mojave Pistachio, LLC et al. v. Superior Court of Orange County, Indian Wells Valley Groundwater Authority (Case No. G062327, opinion published ... Read More

State Water Resources Control Board Adopts Revisions to its Water Quality Enforcement Policy

On December 5, 2023, the State Water Resources Control Board (State Board) held a public hearing on the proposed amendments to its Water Quality Enforcement Policy (“Enforcement Policy” or “Policy”). ... Read More

End of 2023 Legislative Session Highlights

The 2023 California legislative session concluded on September 14, 2023. This article highlights new bills pertaining to water rights, the California Environmental Quality Act (CEQA), and emissions on the consumer ... Read More

Ninth Circuit Revives Clean Water Act Rule from the Trump Administration Era

On February 21, 2023, the United States Court of Appeals for the Ninth Circuit (Ninth Circuit) issued its decision in American Rivers v. American Petroleum Institute, Case No. 21-16958, reversing ... Read More


  • DePaul University College of Law (J.D., 2020)
  • University of California, Davis (B.S., Environmental Toxicology, 2016)


  • California