640-Acre Agricultural Property

Phase I & II ESA – 640-Acre Agricultural Property, Arroyo Grande, CA

Haro Environmental performed a Phase I ESA for a 640-acre agricultural property near Arroyo Grande, CA.  Historic farming operations at the site resulted in the identification of several recognized environmental conditions and areas of potential concern.  Based on the Phase I ESA findings, a two-tiered soil screening assessment was developed and implemented to address possible petroleum hydrocarbon and agricultural chemical contamination.  Tier 1 included an screening soils at the areas of potential concern for a variety of chemicals of potential concern.  Tier II sampling was based on the findings from Tier I and included lateral and vertical delineation of the chemicals of concern.

Former Manufacturing Facility

Groundwater Remediation – Former Manufacturing Facility, Santa Barbara, CA

Haro Environmental, Inc. is the lead consultant for the remediation of the chlorinated solvents TCE and PCE in groundwater at a former manufacturing facility in Santa Barbara, CA.  The site is located in a historic industrial area, which has recently been transformed into an urban wine trail area known as the “Funk Zone”.  Haro Environmental worked with the remediation contractor, Regenesis, to performed a soil assessment to gather detailed information regarding the lithology beneath the site, and to develop an appropriate injection program based on the findings.  For this site, a combined remedy was selected and included the injection of Plumestop, Hydrogen Release Compound, and BDI Plus.  After two months, wells within the treatment zone exhibited reductions of TCE and PCE to non-detectable concentrations. 

Sub-Surface Investigation

Soil, Soil Vapor, and Groundwater Investigation – Buckley Road Area TCE Investigation, San Luis Obispo, CA

A regional TCE plume located south of the San Luis Obispo County Regional Airport is being investigated to identify a possible source.  Haro Environmental, Inc. was contracted with one of the potentially responsible parties to investigate the property as a possible source of the TCE in groundwater.  A work plan was developed and approved by the lead regulatory agency, Central Coast Regional Water Quality Control Board, for the advancement of two soil borings and the collection and analysis of soil, soil vapor, and groundwater samples. 

Former Aircraft Manufacturing Facility

Phase I ESA & Remediation System Engineering Evaluation – Former Aircraft Manufacturing Facility, Los Angeles, CA

A Phase I ESA was performed for an approximately 38-acre site developed with 8 historic structures totaling approximately 550,000 square feet.  Historic aircraft manufacturing resulted in chlorinated VOCs and petroleum hydrocarbon impacts to soil and groundwater.  Identified recognized environmental conditions (RECs) at 11 source areas.  Consulted client on extent of environmental liabilities and potential environmental costs.  Evaluated the performance of the on-site dual-phase extraction system targeting identified source areas.  Developed potential life-cycle costs for the existing remediation system, and costs for remediation of metals contaminated soil.  Performed an indoor air survey to assess potential impacts from the historic aircraft manufacturing operations on indoor air quality.  Indoor air study results were compared to published regulatory thresholds and calculated site-specific health risks.

Aerospace Research and Design

Phase I ESA – Aerospace Research and Development Facility, Redondo Beach, CA

A modified Phase I ESA was performed for a client considering whether or not to purchase occupied buildings or terminate the lease and exit the buildings.  The objective of the assessment was to develop potential remediation costs based on the assessed environmental conditions of the property and on the status of soil and groundwater resources in the area.  Historic operations at the buildings included radar and satellite research and development.  Multiple existing chemical handling areas were assessed as well as historic operations. 

In-Situ Chemical Oxidation

Soil and Groundwater Remediation of Chlorinated Solvents using Chemical Oxidation – Former Aerospace Manufacturing Facility, Newbury Park, CA

In-situ chemical oxidation injections were performed for remediation of soil and groundwater impacted with the chlorinated solvents TCE and PCE.  Revised Waste Discharge Requirements (WDR) and amendments to the original work plan were negotiated with the lead agency (LARWQCB) .  Developed and implemented a site-specific health and safety plan to protect the health and safety of workers and the environment from accidental exposure to the chemical oxidant.  Oversaw the installation of 35 injection wells and 14 dual-nested monitoring wells, and the injection of approximately 12,000 pounds of potassium permanganate.  Conducted performance evaluation sampling per WDR requirements, and prepared and submitted quarterly WDR monitoring reports to the regulatory agency. 

Phase I & II ESA – Former Gasoline Service Station, Paso Robles, CA

Haro Environmental performed a Phase I ESA for a former gasoline service station in Paso Robles, CA.  The Phase I ESA identified the historic presence of underground storage tanks which had been removed under local agency oversight, however, assessment of the soil beneath the former dispensers and distribution pipping was identified as a data gap in the Phase I ESA.  Therefore, a soil sampling program was developed and implemented, and included the collection and analysis of soil samples for petroleum hydrocarbons and lead.

Hazardous Waste Initial Site Assessments – Multiple Locations, Fresno County, CA

Haro Environmental performed multiple Caltrans compliant Initial Site Assessments (ISAs) consistent with ASTM standard E1527-13 to meet the requirements of the Preliminary Environmental Study, as well as the requirements of an ISA as defined by Caltrans in Chapter 10 – Hazardous Materials, Hazardous Waste, and Contamination of the Environmental Handbook, Volume 1: Guidance for Compliance.  The ISAs were completed for multiple bridge projects located throughout rural Fresno County and also included assessment of the potential presence of asbestos and lead-based paint. 

Hazardous Waste Initial Site Assessment (ISA) and Preliminary Site Investigation – Westbound D Street to Northbound 9th Street Right Turn Lane Improvements Project, Modesto, CA

A Caltrans-compliant ISA was performed consistent with ASTM standard E1527-13 and Caltrans Chapter 10 – Hazardous Materials, Hazardous Waste, and Contamination of the Environmental Handbook, Volume 1: Guidance for Compliance.  The ISA was completed to satisfy a requirement by Caltrans and to identify hazardous materials potentially encountered during the project.  Based on the findings of the ISA, a Preliminary Site Investigation (PSI) was performed to address the historic use of the property for railroads. Soil samples were collected and analyzed for chlorinated herbicides, heavy metals and petroleum hydrocarbons. The results were tabulated and a report prepared presenting the analytical data and providing recommendations for soil management during the project. 

Phase I & II ESA – Commercial Building, San Luis Obispo, CA

A Phase I ESA was performed for a commercial building near downtown San Luis Obispo, CA.  During the Phase I, a former dry cleaners was identified adjacent to the site.  As well, the site had historically operated an underground storage tank.  A soil and soil vapor survey work plan was developed and implemented to assess the impacts to the site.  Chemical data and geologic conditions were evaluated and the results used to develop a site conceptual model.

Remediation System Decommissioning – Former Heating Oil Storage and Distribution, San Luis Obispo, CA

Decommissioning of soil and groundwater remediation equipment was performed in support of site closure by the Central Coast Regional Water Quality Control Board. 

Phase I & II ESA – Undeveloped Land, Arroyo Grande, CA

Performed Phase I and II ESA services for the City of Arroyo Grande.  The property under consideration for purchase by the City was undeveloped land.  Because the site was located adjacent to a former auto repair facility, soil samples were collected and evaluated against regulatory thresholds.