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N.D. Cal.Procedural orderFiled July 22, 2025

San Francisco Baykeeper v. Sunnyvale

Judge
Edward Davila
Docket
5:20-cv-00824
Court
U.S. District Court · Northern District of California
Pages
6

Counsel13 of record
PLAINTIFF
Erica A. Maharg Aqua Terra Aeris Law Group
Jason Robert Flanders Aqua Terra Aeris Law Group
Theresa Michelle Trillo Aqua Terra Aeris Law Group
Eric James Buescher San Francisco Baykeeper
Nicole Chiyeko Sasaki San Francisco Baykeeper
Daniel Cooper Lawyers for Clean Water
AMICUS
Bryant B. Cannon CA Department of Justice
DEFENDANT
Melissa Anne Thorme Stoel Rives LLP
Andrew Diaz Perez Stoel Rives LLP
Bao M. Vu Stoel Rives LLP
Edward Charles Duckers Stoel Rives LLP
John Clifton McCarron Downey Brand LLP
Rebecca L. Moon City of Sunnyvale

Counsel of record per CourtListener. Firm names are approximate.

Civil ProcedureEnvironmental
In one sentence

San Francisco Baykeeper v. Sunnyvale: Judge Davila denied the Cities’ motion to reconsider earlier Clean Water Act rulings because they showed no qualifying new evidence.

Who this affects

San Francisco Baykeeper and the Cities of Sunnyvale and Mountain View, whose reconsideration motion was denied while the Clean Water Act case remained pending for the court’s trial findings.

What happened

In San Francisco Baykeeper v. City of Sunnyvale, the court had previously ruled that Sunnyvale and Mountain View violated their water-quality permit on three days in 2019 and that Stevens Creek and Calabazas Creek were covered by the Clean Water Act.

After a bench trial but before the court issued its factual and legal findings, the Cities asked the court to reconsider those earlier rulings. They relied on changed water-quality standards, missing testing data, and flow and precipitation evidence. The court concluded that the standards argument rested on an incorrect effective date and that the other evidence could have been obtained earlier with reasonable diligence.

Judge Edward J. Davila denied the Cities’ motion for reconsideration. The court said testing reliability could still be considered when it later issues its trial findings, but that issue did not justify reconsideration at that time.

The detailed version

For law students, journalists, and other readers who want the full reasoning

Case
San Francisco Baykeeper v. Sunnyvale · No. 5:20-cv-00824
Judge
Edward Davila
Date
July 22, 2025

Background

San Francisco Baykeeper sued the Cities of Sunnyvale and Mountain View under the Clean Water Act. In an earlier summary-judgment order, the court held that Baykeeper had established violations of Limitation B.2 of the Cities’ National Pollutant Discharge Elimination System permit on January 17, February 4, and February 13, 2019. The court also held that Stevens Creek and Calabazas Creek were “waters of the United States,” meaning waters covered by the Clean Water Act.

The bench trial later concluded, but the court had not yet issued its findings of fact and conclusions of law. The Cities obtained permission to seek reconsideration of the earlier summary-judgment rulings.

Legal standard

The court explained that it may reconsider an earlier order before final judgment, but reconsideration is an extraordinary remedy. A party relying on newly discovered evidence must show that the evidence could not have been discovered and presented earlier through reasonable diligence.

The Cities’ arguments

The Cities presented three categories of evidence:

  1. Changed water-quality standards. The Cities argued that California’s new Bacteria Provisions became effective on February 4, 2019, during Baykeeper’s testing period. They contended that the testing was therefore insufficient to establish the permit violations.
  2. Testing reliability. The Cities argued that testimony about a laboratory’s lack of underlying raw data created factual disputes about the reliability of Baykeeper’s testing results.
  3. Waters covered by the Act. The Cities relied on flow and precipitation data for Stevens Creek and Calabazas Creek to challenge the court’s earlier determination that those creeks were covered by the Clean Water Act.

Court’s analysis

The court rejected the argument about the Bacteria Provisions because February 4, 2019, was the date of approval by California’s Office of Administrative Law, not the date the provisions became effective under the governing federal requirements. The provisions did not become effective until the Environmental Protection Agency approved them. The court therefore found that the Cities’ argument rested on a faulty premise.

The court held that the missing raw data was not newly discovered evidence for reconsideration purposes. Although the Cities did not obtain that information until trial, they had received the challenged testing results by the time Baykeeper moved for partial summary judgment in August 2021. The court found that the Cities could have requested the raw data then, when the laboratory’s five-year retention policy likely would have made it available.

The court noted that testing reliability remained a live trial issue. It had allowed the Cities to argue that the missing data undermined the reliability of Baykeeper’s tests. The court stated that it would assess the reliability and interpretation of the tests anew in its trial findings and that, if the trial decision conflicted with the summary-judgment ruling, the Cities could seek relief at that time. But the court held that the issue did not justify reconsideration then.

As to the creek evidence, the court considered the Cities’ request even though it had not originally understood its authorization to include reconsideration of the covered-waters issue. The court held that the Cities had not presented qualifying new evidence. The 2019 flow and precipitation data had been publicly available and could have been accessed at the summary-judgment stage. The later data from 2022 and 2023 did not, in the Cities’ explanation, show how it differed from the 2019 data.

The court also clarified that whether a waterway is covered by the Clean Water Act is better understood as an element of a Clean Water Act claim, not a requirement that gives the court subject-matter jurisdiction. The court therefore did not relax the new-evidence requirement for that issue.

Disposition

The court denied the Cities’ motion for reconsideration. The order did not issue the court’s final findings of fact and conclusions of law after trial.

The authoritative version

Read the full 6-page opinion on CourtListener, the free public archive maintained by the Free Law Project.

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