Investigate potential liabilities caused by past operations of closed hazardous waste disposal ponds on other waste disposal operations at the Ramat Chovav Hazardous Waste Disposal Facility in the Negev.

Energix Renewable Energies Ltd was obtaining international funding for a multi-national solar energy project to be built on land previously used for Hazardous Waste Disposal. ADAMA was engaged during the due diligence process to investigate potential liabilities associated with these past opertions.

ADAMA performed a Phase I Environmental Assessment (ESA) in March 2013 which identified areas of concern and the need for soil testing and analysis performed as part of the Phase II ESA. The Phase I and Phase II ESA were completed in a period of 1 month. The soil investigation findings identified only one small area of the site where wastes were disposed in the past from a veterinary medicine manufacturing. Based these findings, Energix was able to obtain funding for the project and remediation of the veterinary waste disposal area by the site owners.

ADAMA performed the Phase I and Phase II ESA in short period required to meet deadlines for obtaining international funding for the project. The ESA findings enabled Energix to avoid potential liabilities associated with waste disposal which was not documented by site managers.

A fuel station located in an urban, residential area of Tel Aviv discovered a tank leak in 2000, following failure of a tightness test. Following replacement of the tank, series of soil and groundwater investigations were performed and contamination (soil, groundwater and free product) were found covering an area of approximately 1 dunam (1/4 acre).  A free product thickness exceeding 1 meter was found over ½ of the site.
Geology and hydrogeology – the subsurface cross-section in the area of the gas station is comprised of sand and cemented sand (“kulkar” – eolanite) to a depth of 10 meters where the groundwater table is located.

A comprehensive in-situ remediation system (skimmer pumps, SVE with a Catalytic Oxidizer and Air Sparging) was designed and installed to remediate free product, soil and groundwater.  This system was the first installed in Israel and was approved by both the Ministry for the Protection of the Environment and the Israel Water Authority. ADAMA has operated and monitored the system since 2008 and the system has removed over 23,000 kg of hydrocarbons (approximately 28,000 liters of fuel).  The free product has been virtually eliminated from the site.

The in-situ treatment system was installed which prevented any disruption of the station during installation and operation.  The system requires minimal operation and maintenance and treats all types of contaminants include soil, free product and groundwater.

A battery manufacturing plant operated in the Haifa Bay area on  a 24 dunum (6 acre) site until the 1990’s.   Part of the manufacturing process included recycling old batteries which resulted in the site being contaminated by lead and other heavy metals.  In order to sell the property for commercial usage, a soil investigation followed by remediation was performed.

Geology and hydrogeology – the site is underlain by sandy soils to the groundwater table located at approximately 5 meters.

A soil investigation was performed by a previous consultant which showed significantly elevated concentrations of lead throughout the site to depth of 2 to 4 meters.  To evaluate the cost of soil disposal, a detailed additional investigation was performed and samples analyzed by water extraction throughout the site.  This investigation showed that over 95 percent of the soils could be disposed as non-hazardous waste.

ADAMA prepared tender detailed engineering plans and tender documents for the excavation of the contaminated soils and disposal as non-hazardous waste.  Excavation oversight was performed and samples analyzed in the field using at x-ray fluorescence (XRF) analyzer which allowed for immediate analysis of samples on-site.  The remediation was completed in approximately 1 month and a no-further-action letter was received from the Ministry for the Protection of the Environment.  A total of approximately 15,000 tons of soils were excavated and disposed as non-hazardous waste and 100 tons were disposed as hazardous waste.

ADAMA’s recommendations to reinvestigate the site and perform water extraction analysis for lead allowed our client to reduce the costs of disposal of lead contaminated soils.  By using the field analysis of soils by an XRF analyzer, the remediation was completed in a relatively short period of time.

These remedial actions allowed the client to change the land usage of the site from industrial use to commercial use and thus increase the value of the property, minimized treatment costs and ensured compliance with the requirements set by the ministry of environment.

An international company was interested in purchasing a large mining plant that in the past had been in the business of producing and processing of metals (copper).  The company requested that the current environmental liabilities at the site be assessed in order to evaluate the economic costs and potential and environmental liabilities of the site from past operations
A Phase I Environmental Site Assessments (ESA) was conducted according to ASTM 1527-00 standards which included, interviews with previous factory management and operating staff, evaluation of historical aerial photography and collection of data from relevant authorities as well as a detailed site reconnaissance.
Based on the findings of the historical survey, the potential liabilities at the site were estimated along with their associated costs.  The survey findings enabled the customer to make a better informed business decision.