CERCLA (Comprehensive Environmental Response, Compensation, and Liability Act) is a federal law that applies in all states, including California. CERCLA—commonly referred to as the Superfund law—is one of the primary federal laws governing liability for the investigation and cleanup of releases of hazardous substances.
CERCLA operates alongside, and often overlaps with, California’s own hazardous waste and water quality laws which can impose more stringent investigation, cleanup and reporting requirements than federal law alone. As a result, CERCLA liability in California may involve both federal and state regulatory agencies, including the U.S. Environmental Protection Agency (EPA), the California Department of Toxic Substances Control (DTSC), and the Regional Water Quality Control Boards.
Due care and regulatory compliance are essential in real estate transactions, business operations, and property management where there is a reasonable possibility that a site has been used for commercial or industrial purposes and may be contaminated. Failure to conduct proper environmental due diligence or to manage known contamination appropriately can result in significant and unexpected CERCLA liability, including responsibility for investigation and cleanup costs.
Business owners, real estate developers, manufacturers, and waste generators and transporters frequently face substantial Superfund compliance and enforcement risks under CERCLA. They should receive environmental and legal advice to respond to enforcement actions but also to manage and allocate risk before government action occurs. This article examines CERCLA liability in California, when legal counsel is most critical, and how experienced environmental attorneys assist clients through all phases of the Superfund process.
Understanding CERCLA Liability Basics
CERCLA authorizes the federal government to respond to releases or threatened releases of hazardous substances and to recover response costs from designated Potentially Responsible Parties (PRPs). A party may be identified as a PRP even if it did not cause the original contamination and even if the contamination occurred decades earlier.
CERCLA liability is strict (no proof of negligence required), joint and several (any one PRP may be held liable for the entire cleanup cost), and retroactive. As a result, a single party may be held responsible for 100% of response costs even where multiple parties contributed to contamination.
Key CERCLA liability triggers include:
- A release or threatened release of a hazardous substance into the environment
- Current or former ownership or operation of a facility from which a release has occurred
- Arranging for the disposal or treatment of hazardous substances
- Transporting hazardous substances to a site selected for disposal or treatment
CERCLA and California Enforcement Authority
In California, site investigation and cleanup are frequently overseen by state agencies acting under state law authority, including DTSC and the Regional Water Quality Control Boards. These agencies do not “act in place of” EPA under CERCLA, but may oversee cleanups under California statutes such as the Hazardous Substance Account Act (HSAA) and the Porter-Cologne Water Quality Control Act. However, with these state-led actions, EPA may still retain its lead authority, coordinate with state agencies, or defer to them.
Of note, state-directed cleanups may still give rise to CERCLA liability and cost recovery exposure. In many cases, California cleanup standards and reporting thresholds are more stringent than federal baselines, increasing compliance obligations for regulated parties.
And then there are the Certified Unified Program Agencies (CUPAs). These are local agencies, like fire departments and health departments that hold authority under California law to regulate hazardous materials management and reporting. They do not enforce CERCLA. But their role is still critical in identifying conditions that may trigger state or federal cleanup obligations.
Unforeseen Superfund Liability from Site Contamination
Public and private entities buy and sell real estate regularly, often without full knowledge of historical contamination. In many cases, the original discharger has long since ceased operations or no longer exists. When contamination is discovered, current owners, prior owners, and other PRPs may face liability under CERCLA and California law.
This risk applies to: property purchases and sales; corporate mergers and asset purchases, and long-operated facilities later found to have contamination. For that reason, every real estate or corporate transaction involving industrial or commercial property should be evaluated for possible environmental liability.
When Do You Need a CERCLA Attorney?
CERCLA issues can arise at the most inopportune times, including during property transactions, regulatory audits, after a death, or years after historic contamination occurred. It’s essential to recognize risk triggers early and respond to government notices or private demands quickly.
Common situations might be if:
- You receive an information request from EPA, DTSC, or a Water Board
- A Phase I or Phase II Environmental Assessment identifies recognized environmental conditions (RECs) or any potential for contamination at a property
- You are buying, selling, or refinancing potentially contaminated property
- You face cost recovery, contribution, or enforcement actions under federal or state law
- Your operations involve the generation, storage, treatment, transport, or disposal of hazardous waste
- Lenders or investors require risk analysis for California or brownfield properties
An environmental attorney can help assess any of these situations and advise on risks, potential costs, and appropriate options. Attorneys typically help coordinate with environmental consultants during Phase I and II investigations. They respond to EPA, DTSC, and Water Board requests, notices of violation, and orders. Attorneys can negotiate the scope, timing, and possible cost allocations for property investigation and remediation. They can help property owners and businesses before any government or private party enforcement by conducting audits and advising on compliance. If a property has already undergone a cleanup, attorneys can help obtain regulatory closure. They can assist with insurance recovery. And, of course, environmental attorneys both bring CERCLA cost recovery and contribution actions and defend those who are sued.
There is no one-size-fits-all solution for addressing contamination at a property. The most effective approach depends on the specific circumstances of the site and the transaction. Key considerations often include whether the property is being acquired or operated, whether the project involves a sale or redevelopment, and the extent of involvement by local, state, or federal environmental regulators.
With the right strategy, many contamination issues can be managed efficiently and in a way that supports the underlying business or development goals. If you are navigating contamination issues as part of a transaction or project, we are happy to help evaluate the options and identify practical paths forward.
FREQUENTLY ASKED QUESTIONS:
What does the Clean Water Act do in California?
The Clean Water Act sets national rules to protect rivers, lakes, and streams. In California, those rules are mostly enforced by state agencies, not the federal government. That often means stricter requirements and more oversight than in other states.
Who needs to worry about Clean Water Act compliance?
Not just factories or wastewater plants. In California, construction projects, industrial and commercial sites, redevelopment properties, public agencies, and even some property owners can have obligations—especially where stormwater runoff, groundwater, or past contamination is involved.
When should I talk to a lawyer about water or stormwater issues?
It’s usually helpful before a problem escalates. Common trigger points include project planning, inspections, permit applications, redevelopment, property transactions, or receiving a notice from a regulator or third party.
What does a Clean Water Act lawyer actually help with?
Most work involves explaining which permits apply, helping respond to agency inquiries or enforcement, supporting permit and certification applications, coordinating with environmental consultants, auditing compliance, and negotiating with environmental groups who may threaten citizen lawsuits. Lawyers also help manage water-related risks in real estate and business deals.
How are California’s water rules different from federal rules?
California can regulate more broadly than federal law allows. Activities that don’t require federal permits may still need approval from the State Water Resources Control Board or one of the Regional Water Quality Control Boards, especially for stormwater or groundwater impacts.
Can I have stormwater problems even if my site has been operating for years?
Yes. Permits change, enforcement priorities shift, site operations evolve, and trusted employees leave. Facilities that were once compliant can also face new expectations, particularly around monitoring, reporting, or emerging contaminants like PFAS.
How do water quality rules affect real estate deals or redevelopment?
Water issues often come up during due diligence. Existing permits, unmanaged stormwater, settlement terms, or old contamination can affect financing, project timing, and liability. Reviewing these issues early helps avoid surprises after closing.
What is a Clean Water Act citizen suit?
Citizen suits allow private parties to sue over alleged Clean Water Act violations after giving notice. These cases often focus on stormwater permit violations or reporting issues. Early legal review can help assess risk and response options. Waiting too long can subject a business to penalties and even the plaintiff’s attorney fees.
About Us
The Law Office of Jennifer F. Novak provides strategic environmental law representation for property owners and businesses. We specialize in environmental litigation and regulatory compliance, focusing on soil and groundwater remediation, Clean Water Act citizen suits, and Water Board orders (Sections 13304 & 13267). We protect your interests by navigating complex regulations and ensuring fair enforcement.
