Underground Storage Tanks (UST) Compliance & Closure Services
Non-compliant USTs in California must be removed or permanently closed by December 31, 2025 under H&SC §25291(a)(1)-(6). A-Tech Consulting delivers turnkey permitting, safe removals, environmental monitoring, and final closure reporting, so you’re compliant, documented, and ready for certification.
Request a UST ConsultationCall 800-434-1025
What Are Underground Storage Tanks and Why Compliance Matters
Underground Storage Tanks (USTs) store fuels, oils, and other hazardous substances. Aging or undocumented tanks can leak, leading to soil and groundwater impacts, costly cleanup, and regulatory enforcement. Working with certified professionals ensures your closure meets requirements from CUPA, County Environmental Health, Regional Water Quality Control Boards (RWQCBs), and Air Quality Management Districts. California’s Health & Safety Code §25291(a)(1)-(6) requires non-compliant USTs to be removed or permanently closed by December 31, 2025. Starting early avoids permitting delays, contractor bottlenecks, and potential penalties.
Why UST Compliance Matters
Reduce Risk
Prevent soil/groundwater contamination and vapor intrusion.
Avoid Penalties
Minimize violations, shutdowns, and enforcement actions.
Protect Value
Support real estate transactions and redevelopment timelines.
Document Compliance
Achieve agency approvals and No-Further-Action (NFA) determinations.
Key regulators: CUPA, County Environmental Health, RWQCBs, AQMDs, local Fire Departments.
Our UST Services
Environmental & Air Monitoring
Real-time air monitoring and perimeter dust/vapor control to protect workers, the public, and adjacent properties.
Confirmation Sampling
Soil and trench sidewall sampling to confirm leakage status, delineate impacts, and guide RWQCB/CUPA closure decisions.
Final Reports & NFA Letters
Complete closure reports with excavation logs, manifests, lab data, figures, and agency-ready packages that support NFA outcomes.
CIH Oversight & Tank Destruction Certification
Certified Industrial Hygienist (CIH) oversight for safety compliance and documentation, including tank destruction certification.
Permitting & Regulatory Coordination
We prepare and submit notifications and permits, coordinate with CUPA, RWQCB, AQMD, and Fire Departments, and manage project documentation.
Our Expertise & Experience
A-Tech’s multidisciplinary team—Environmental Engineers, Certified Industrial Hygienists (CIHs), and Field Technicians—has delivered compliant UST closures and environmental assessments for public agencies, developers, and commercial sites across California and the PNW. We follow strict safety protocols, QA/QC, and regulator expectations from mobilization through final approval.

Key Deadlines & Regulations
Under California Health & Safety Code §25291(a)(1)-(6), USTs that lack required upgrades (e.g., secondary containment, approved monitoring) or are no longer in use must be closed or removed by December 31, 2025. Tanks that fail inspection or integrity testing also trigger closure requirements.
•What it means: If your tank is non-compliant or inactive, begin the closure process now to secure permits, schedule field activities, and complete regulatory review on time.
•Why now: As the deadline approaches, contractor and regulator availability will tighten, early action reduces risk and cost.
Why Choose A-Tech
• Local expertise: Deep experience with CUPA, RWQCB, AQMD, and county requirements across CA & PNW.
• Certified professionals: CIH, AHERA, and HAZWOPER-trained teams.
• Turnkey delivery: Permitting, removal, monitoring, confirmation sampling, and final reporting.
• Proven results: Successful closures for municipalities, developers, and industrial facilities.
• Safety first: Worker and community protection with real-time monitoring and robust documentation.
• Mission-driven: Creating a safer tomorrow, today.

Start Your UST Compliance Plan Today
Avoid deadline risk and expedite approvals. Contact A-Tech to schedule a UST consultation or site assessment.
Request a ConsultationCall 800-434-1025Serving California and the Pacific Northwest



