Frio County Solar Project

Smart_Slider_image_sizer Frio County Solar Project for website
Smart_Slider_image_sizer Frio County Solar Project for website
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Project Overview

ESE conducted due diligence reviews and corrective actions services for a proposed large-scale solar installation in South Texas. The Phase I ESAs were conducted in accordance with ASTM E 1527-13 and ASTM E 1527-21 guidance to include site history and records reviews (aerial photographs, site maps or plans, and review of previous environmental reports), user and owner/occupant questionnaires, and review of regulatory database reports (including federal, state and local agencies), review of physical setting sources (flood plain maps, topographic maps, geologic maps, and oil and gas maps), and review of county appraisal district information, which identified a contaminated area surrounding a well-drilling company laydown yard. ESE conducted a Phase II ESA in accordance with ASTM E 1903-19 guidance, which confirmed the presence of total petroleum hydrocarbons (TPH) in soil. After subsequent remediation activities by the property owner’s lessee, ESE confirmed through post excavation sampling that all TPH levels were effectively and successfully removed from the property. ESE was asked to provide periodic updates to the Phase I ESA to provide current reports for the purposes of project financing.

Services Performed

  • Phase I ESAs
  • Phase II ESA
  • Post Excavation Sampling


  • 1,650 Acres