In 2001, a developer purchased a 4-dunam plot in the central region of Israel — priced below comparable plots in the area. The previous use: a fueling depot and vehicle maintenance operation. No environmental inquiry was conducted before contract signing. A year later, during preliminary excavation, soil sampling revealed significant petroleum hydrocarbon contamination extending to 8 meters depth and reaching the upper groundwater table. The Ministry of Environmental Protection required full remediation before any construction could commence. The remediation — soil excavation, treatment, groundwater pump-and-treat installation, and regulatory sign-off — took 18 months and cost approximately ₪4.5 million. The developer had purchased the plot for ₪3.2 million.
This is what the Histors system was designed to prevent — when it is used.
What the Histors System Is
Histors (היסטורים) is Israel's registry of historical land uses maintained by the Ministry of Environmental Protection. The system tracks known and suspected contaminated sites based on prior industrial, military, fuel-related, and hazardous materials activities.
A Histors query returns the documented land use history of a specific plot, including any Ministry records of prior industrial permits, fuel storage licenses, hazardous materials handling, or enforcement actions. However, the Histors registry does not capture all contaminated sites — it reflects documented records, not comprehensive surveying. A clean Histors result does not certify a clean site.
The Legal Obligation Before Construction
Phase 1 Environmental Site Assessment (ESA): A documentary review examining Histors records, aerial photograph archives, municipal records, and adjacent site uses. The Phase 1 establishes whether there is a "recognized environmental condition" (REC) — a credible basis for suspecting contamination.
Phase 2 ESA: If Phase 1 identifies a REC, Phase 2 involves physical investigation — soil borings, groundwater sampling, laboratory analysis, and mapping of any contamination plume.
Under Israeli civil law and the Tort Ordinance, a buyer who purchases a contaminated site and constructs on it without prior investigation may bear liability both for the contamination itself and for any harm caused to third parties. The cost of remediation does not disappear — it attaches to the site, and it attaches to whoever holds title.
Categories of Contamination
Petroleum hydrocarbons (BTEX, TPH): The most common contamination type in Israel, sourced from fuel stations, storage tanks, and vehicle depots. Contamination plumes can extend 50–200 meters from the source. Remediation cost range: ₪1,000,000–₪15,000,000 depending on depth and plume extent.
Chlorinated solvents: Found at dry cleaning facilities, electronics manufacturing, and military/defense industrial plants. Former Israel Military Industries (IMI) sites across central Israel — Ramat Hasharon, Herzliya, Rehovot — are among the most severe examples, with contamination plumes affecting the coastal aquifer.
Heavy metals (lead, chromium, cadmium, arsenic): Found at battery recycling facilities, metal plating operations, and paint manufacturing.
Asbestos: Building demolition debris containing asbestos requires licensed removal and disposal. Presence of ACM in fill soil can halt construction immediately pending Ministry review.
Construction Waste Regulations
The Construction and Demolition Waste Regulations (2005) and amendments require a waste management plan (תכנית לניהול פסולת) for projects above a defined scale threshold, designation of a licensed waste management contractor, and use of Ministry-licensed receiving sites for all disposal.
Illegal dumping carries fines of up to ₪226,000 per violation under the Planning and Building Law, in addition to potential criminal liability. A developer caught with an illegal dumping violation faces risk of permit suspension and scrutiny of future permit applications.
What Razore Engineering Examines in Due Diligence
Razore Engineering conducts environmental due diligence on every DDG project site as part of the concept-stage assessment, covering Histors query and interpretation, aerial photograph timeline analysis, adjacent site assessment within 200 meters, Phase 1 ESA scope recommendation, and waste management plan preparation.
The goal is simple: no environmental surprise should emerge after a developer has committed capital. The investigation belongs before the term sheet, not after the permit application.
Due Diligence Checklist: 5 Questions to Ask Before You Commit to a Site
- Has a Histors query been run on this specific plot — not just on the adjacent block?
- What was this land used for in the 1950s–1980s? Much of Israel's current residential development pressure falls on land formerly used by light industry and military infrastructure during those decades.
- Who bears contractual liability for contamination discovered post-purchase? Without a specific environmental indemnification clause, the buyer absorbs the liability by default.
- Has a Phase 1 ESA been completed, and by whom? A Phase 1 conducted by a consultant hired by the seller is not independent.
- Does the project require a waste management plan, and has a licensed receiving site been designated?
Questions about a specific project? Our team replies within 24 hours.
All data and figures in this article are for illustrative and educational purposes. Site-specific conditions vary. Consult a qualified licensed engineer for project-specific analysis. Engineering services by Razore Engineering & Consulting Ltd.