Patane v. County of Santa Clara CA6

CourtCalifornia Court of Appeal
DecidedJune 30, 2021
DocketH048133
StatusUnpublished

This text of Patane v. County of Santa Clara CA6 (Patane v. County of Santa Clara CA6) is published on Counsel Stack Legal Research, covering California Court of Appeal primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Patane v. County of Santa Clara CA6, (Cal. Ct. App. 2021).

Opinion

Filed 6/30/21 Patane v. County of Santa Clara CA6 NOT TO BE PUBLISHED IN OFFICIAL REPORTS California Rules of Court, rule 8.1115(a), prohibits courts and parties from citing or relying on opinions not certified for publication or ordered published, except as specified by rule 8.1115(b). This opinion has not been certified for publication or ordered published for purposes of rule 8.1115.

IN THE COURT OF APPEAL OF THE STATE OF CALIFORNIA

SIXTH APPELLATE DISTRICT

CARMEN PATANE, H048133 (Santa Clara County Plaintiff and Appellant, Super. Ct. No. 19-CV347111)

v.

COUNTY OF SANTA CLARA et al.,

Defendants and Respondents;

SHAMROCK SEEDS COMPANY,

Real Party in Interest and Respondent.

I. INTRODUCTION This CEQA1 action arises from the proposal of real party in interest Shamrock Seeds Company (Shamrock Seeds) to expand and modernize its agricultural research facility in unincorporated Santa Clara County (County) by, among other things, building new greenhouses. After preparing an environmental impact report (EIR) pursuant to CEQA concerning the proposed project and holding a hearing, the County’s Board of Supervisors approved the Shamrock Seeds project. Plaintiff Carmen Patane, a neighboring property owner, challenged the County’s approval of the Shamrock Seeds project by filing a petition for writ of mandate alleging

1 California Environmental Quality Act, Public Resources Code section 21000 et seq. violations of CEQA’s requirements for environmental review with respect to aesthetics and historical resources. The trial court denied the petition for writ of mandate and on May 4, 2020, judgment was entered in favor of respondents. On appeal, Patane contends that the trial court erred in denying the petition for writ of mandate because (1) the EIR’s conclusions regarding the aesthetic impact of light emitted from the proposed greenhouses during non-daylight hours, specifically sky glow on cloudy skies, are not supported by substantial evidence; (2) the EIR’s mitigation measures for greenhouse lighting are inadequate; and (3) the County’s response to comments by Patane’s lighting expert are inadequate. For reasons that we will explain, we find no merit in Patane’s contentions. We will therefore affirm the judgment. II. FACTUAL AND PROCEDURAL BACKGROUND A. The Proposed Project and Environmental Impact Report The proposed Shamrock Seeds project is located on Holsclaw Road in a rural area of unincorporated Santa Clara County where Shamrock Seeds has an existing agricultural research facility. The proposed project would expand and modernize the research facility by demolishing the existing greenhouses and constructing two new greenhouses, an agricultural research building, a parking lot, an electrical utility building, a water tank, and a stormwater detention pond. The new greenhouses would have internal illumination during a portion of non-daylight hours. The draft environmental impact report (DEIR) for the Shamrock Seeds project was released in October 2018. The many environmental impacts addressed in the DEIR include the project’s impacts on aesthetics and historical resources. The DEIR’s conclusions regarding the aesthetic impact of light and glare from the proposed new greenhouses were based on a lighting analysis conducted for the proposed project, as set forth in the June 2018 lighting technical memorandum prepared by Neil Hinckley of Michael Baker International and included with the DEIR as Appendix B.

2 As summarized in the DEIR, Hinckley’s lighting analysis began by taking baseline measurements of light levels from the existing greenhouses in order to compare existing conditions to the modeling of the light levels from the proposed greenhouses. Hinckley then analyzed the impact of horizontal illumination, vertical illumination, uplight and sky glow, and glare from the proposed greenhouses. Regarding horizontal illumination from the proposed new greenhouses, Hinckley determined that “the light emanating from the proposed greenhouses would result in a maximum horizontal illumination of 0.3 fc[2] at the nearest property line, which would fall to 0.1 fc at 10 feet beyond the northwest property line on the adjacent property at 6650 Holsclaw Road. Thus, horizontal illumination would not exceed the 0.1 fc threshold 10 feet beyond a property line and the impact would be less than significant.” Hinckley also determined that the impact of uplight and sky glow from the proposed greenhouses would be less than significant: “[T]he sky brightness due to the proposed greenhouses would be well below the 0.1x threshold (10 percent increase) both at the property edge (2.2 percent change) and at a distance of five kilometers from the property boundary (no change). This increase in sky brightness would not be noticeable as it typically takes an eight percent difference (increase or decrease) in brightness to be noticeable to humans. The sky glow of nearby cities is significantly brighter than the sky glow that would result from the new greenhouses.” Regarding the impact of sky glow from greenhouse lighting on cloudy skies, Hinckley stated that “[a]s part of the lighting analysis in Appendix B, a calculation grid was placed at cloud level (6,000 feet), facing down, and used to calculate what the

2 “Footcandles are the most common unit of measure used by lighting professionals to calculate light levels in businesses and outdoor spaces. A footcandle [fc] is defined as the illuminance on a one square foot surface from a uniform source of light.” ( [as of Jun. 29, 2021], archived at .)

3 illuminance on the clouds would be. The maximum illuminance value at cloud level was approximately 0.03 fc.” Hinckley determined that that the impact of sky glow on cloudy skies would be less than the .10 fc threshold of significance. Regarding the impact of glare from the proposed greenhouses, Hinckley concluded that “glare from the proposed project would be unnoticeable on average to barely discernible in the worst case. As a result, glare from the project would not exceed the 20 GR threshold (‘barely noticeable’) and the impact would be less than significant.” However, Hinckley determined that the impact of vertical illumination from the proposed greenhouses would be significant, because “[v]ertical illumination from the proposed project greenhouses would exceed the 0.1 fc threshold by 79 times as measured 10 feet from the northwest property line on the adjacent property in the vertical plane.” Hinckley further determined that there were mitigation measures that would reduce the impact of vertical illumination to a less than significant level. The mitigation measures recommended by Hinckley, designated MM AES-1.1, were as follows: “One or more solid barriers shall be installed within four feet of each of the proposed lighted greenhouses along the northwest side to reduce the vertical illuminance at the northwest property line to levels below those specified in the 2011 Model Lighting Ordinance from the International Dark Sky Association/Illuminating Engineering Society (0.1 fc measured 10 feet from the property line on the adjacent property). Such barrier(s) shall have an aggregate opacity of at least 80 percent and be at least as tall as the sidewalls of the proposed lighted greenhouses along their northwest side.” Hinckley concluded that “[i]mplementation of MM AES-1.1 would reduce vertical illumination on the adjacent property at 6650 Holsclaw Road by approximately 80 percent (reducing it to below the 0.1 fc threshold) and the resulting lighting impact would be less than significant.” The DEIR also concluded that the Shamrock Seeds project would have a less than significant impact to historical resources, including the adjacent Edwin Willson Ranch.

4 B.

Free access — add to your briefcase to read the full text and ask questions with AI

Related

Taxpayers for Accountable School Bond Spending v. San Diego Unif. School Dist. CA4/1
215 Cal. App. 4th 1013 (California Court of Appeal, 2013)
Save Our Carmel River v. Monterey Peninsula Water Management District
46 Cal. Rptr. 3d 387 (California Court of Appeal, 2006)
ASS'N OF IRRITATED RESIDENTS v. County of Madera
133 Cal. Rptr. 2d 718 (California Court of Appeal, 2003)
California Native Plant Society v. City of Santa Cruz
177 Cal. App. 4th 957 (California Court of Appeal, 2009)
Ocean View Estates Homeowners Ass'n v. Montecito Water District
10 Cal. Rptr. 3d 451 (California Court of Appeal, 2004)
Gilroy Citizens for Responsible Planning v. City of Gilroy
45 Cal. Rptr. 3d 102 (California Court of Appeal, 2006)
Preserve Poway v. City of Poway
245 Cal. App. 4th 560 (California Court of Appeal, 2016)
Banning Ranch Conservancy v. City of Newport Beach
392 P.3d 455 (California Supreme Court, 2017)
Sierra Club v. County of Fresno
431 P.3d 1151 (California Supreme Court, 2018)
Clover Valley Foundation v. City of Rocklin
197 Cal. App. 4th 200 (California Court of Appeal, 2011)
Pfeiffer v. City of Sunnyvale City Council
200 Cal. App. 4th 1552 (California Court of Appeal, 2011)
Save Cuyama Valley v. County of Santa Barbara
213 Cal. App. 4th 1059 (California Court of Appeal, 2013)
Washoe Meadows Cmty. v. Dep't of Parks & Recreation
225 Cal. Rptr. 3d 238 (California Court of Appeals, 5th District, 2017)
Protect Niles v. City of Fremont
236 Cal. Rptr. 3d 513 (California Court of Appeals, 5th District, 2018)

Cite This Page — Counsel Stack

Bluebook (online)
Patane v. County of Santa Clara CA6, Counsel Stack Legal Research, https://law.counselstack.com/opinion/patane-v-county-of-santa-clara-ca6-calctapp-2021.