Understanding REC Types in Phase 1 ESAs
A Recognized Environmental Condition (REC) is a key finding in a Phase 1 ESA that indicates potential contamination. The ASTM E1527-21 standard defines four categories that help characterize the nature and status of environmental conditions.
The Four REC Categories
Understanding the differences between REC types is crucial for transaction decisions. Each type has different implications for liability, financing, and next steps.
REC
Recognized Environmental Condition
The presence or likely presence of hazardous substances or petroleum products due to a release, conditions indicative of a release, or conditions that pose a material threat of a future release.
Transaction Impact
- Typically requires Phase 2 investigation
- May delay or complicate financing
- Lenders often require resolution before closing
Common Examples
- Active underground storage tank (UST) with unknown condition
- Staining observed on soil surface
- Former dry cleaner on site without closure documentation
- Adjacent property contamination migrating to subject site
HREC
Historical Recognized Environmental Condition
A past release that has been addressed to the satisfaction of the applicable regulatory authority, or meets unrestricted use criteria without any controls or restrictions.
Transaction Impact
- Generally no further action required
- Should not affect financing
- Maintain documentation for future reference
Common Examples
- UST removed with clean closure letter from state
- Historical contamination fully remediated
- No Further Action (NFA) letter issued by regulator
- Spill cleaned up with regulatory confirmation
CREC
Controlled Recognized Environmental Condition
A REC where contamination has been addressed but controls are in place (such as engineering controls, institutional controls, or activity and use limitations). Residual contamination remains above unrestricted use levels.
Transaction Impact
- Ongoing obligations transfer to new owner
- May limit future property use
- Lenders may require additional review
- Title may show deed restrictions
Common Examples
- Contaminated soil capped with clean soil or pavement
- Vapor barrier installed for sub-slab contamination
- Deed restriction limiting groundwater use
- Property enrolled in state voluntary cleanup program with controls
De Minimis
De Minimis Condition
A condition that generally does not present a threat to human health or the environment and that generally would not be the subject of an enforcement action if brought to the attention of appropriate governmental agencies.
Transaction Impact
- No further action typically required
- Should not affect financing
- May be noted but not as a REC
Common Examples
- Small stain from typical automotive fluid drip
- Historical agricultural use (pesticides) at de minimis levels
- Incidental household quantities of hazardous products
- Minor releases already addressed
Business Environmental Risk (BER)
The ASTM standard also allows environmental professionals to identify conditions that don't meet the REC definition but may still be a business concern. These are called Business Environmental Risks.
Examples of Business Environmental Risk
- Asbestos-containing materials in buildings (regulated but not a REC)
- Lead-based paint (regulated but not a REC)
- Radon potential (not a hazardous substance under CERCLA)
- Mold issues
- Wetlands or protected habitats
- Building code violations
While these don't affect CERCLA liability protection, they may impact property value, use, or operations.
How REC Types Affect Transactions
| REC Type | Phase 2 Needed? | Financing Impact | Ongoing Obligations |
|---|---|---|---|
| REC | Usually yes | May delay or require conditions | Depends on Phase 2 results |
| HREC | No | None | None (keep documentation) |
| CREC | No | May require review | Yes - controls must be maintained |
| De Minimis | No | None | None |
What to Do When RECs Are Found
1. Don't Panic
RECs are common, especially on properties with industrial or commercial history. They don't automatically kill a deal.
2. Understand the Scope
Read the Phase 1 conclusions carefully. The environmental professional's opinion provides context on severity and next steps.
3. Discuss with Lender
Share findings early. Lenders deal with RECs regularly and may have standard paths forward.
4. Consider Phase 2
A Phase 2 ESA determines if actual contamination exists and its extent. This resolves uncertainty.
5. Evaluate Deal Terms
RECs may justify price negotiation, seller remediation requirements, or environmental insurance.
6. Maintain CERCLA Protection
Conducting proper due diligence (Phase 1 ESA) is what provides innocent landowner protection—even if RECs are found.
Frequently Asked Questions
What is the difference between REC and HREC?
A REC indicates a current or unresolved potential contamination issue that may require investigation. An HREC (Historical REC) is a past release that has been fully addressed and no longer requires action—it meets unrestricted use criteria without controls.
What is a CREC and what are my obligations?
A CREC (Controlled REC) means contamination exists but is being managed through engineering controls (like vapor barriers) or institutional controls (like deed restrictions). As a property owner, you must maintain these controls and comply with any ongoing regulatory requirements.
Does finding a REC always require Phase 2?
Not always, but typically. Lenders usually require Phase 2 investigation to quantify the risk. However, some RECs can be addressed through other means—like obtaining historical records, regulatory letters, or environmental insurance. Your environmental consultant can advise on the best path.
Can I still get financing with a REC?
Yes, in most cases. Lenders deal with RECs regularly. You may need to conduct Phase 2, obtain environmental insurance, negotiate seller remediation, or structure escrows. HRECs and de minimis conditions generally don't affect financing at all.
What is a de minimis condition?
A de minimis condition is something that doesn't present a threat to human health or the environment and wouldn't trigger enforcement action. Examples include small automotive fluid stains or minor historical uses at insignificant levels. These are noted in reports but don't constitute RECs.