California has thousands of abandoned oil wells, and roughly 25 idle wells sit within a half mile of schools, care facilities, and residential areas across the state. San Diego County is not immune. If you own property in El Cajon, Lemon Grove, Santee, or unincorporated areas, or if you're a contractor hired for demolition or foundation work, you need to ask: What was here before?
Contaminated sites don't announce themselves. They hide underground—in soil, in groundwater, in the sediment of old industrial areas. When you excavate without a Phase I environmental assessment, you risk mobilizing hazardous material. Worse, you may spread it further. The cost of proper testing upfront is a fraction of the cost of remediation after the fact, or worse, after someone gets sick.
Homeowners often assume their local inspector or title company will flag problems. They don't always. Contractors who want the job done fast may not ask hard questions. That's when proper disposal becomes a crisis instead of a plan. San Diego's canyons and storm drains have already absorbed decades of careless dumping. New sites should not repeat that pattern.
If you're planning a remodel, addition, or demolition, start with a Phase I environmental site assessment. It costs a few hundred dollars and can save you thousands. If contamination is found, work with a licensed environmental consultant and a certified disposal facility. Keep receipts. Know where your waste goes. That's not just law—it's the standard that keeps our neighborhoods safe.
What to do with your next load
- Before excavation or demolition, hire a Phase I ESA to identify buried hazards on your property—especially in East County and older neighborhoods.
- Ask your contractor directly: 'Have you done an environmental assessment? Do you have a disposal plan for any contaminated soil?' Get answers in writing.
- If contaminated soil or groundwater is found, use only licensed environmental contractors and certified disposal facilities; never haul it yourself or to an unlicensed site.
- Keep all Phase I reports, disposal manifests, and receipts for at least 7 years in case of future liability questions.
- If you suspect a property has industrial history (old gas station, auto shop, factory), disclose it to your environmental consultant before work begins.