Hazardous Materials Business Emergency Plan (HMBEP) All Certified Unified Program Agencies (CUPAs), Participating Agencies (PAs), and regulated businesses in the state of California must submit…

PRE-REGISTRATION is REQUIRED for this event.  All participants are required to have the confirmation email either on their phone or have a printed copy to show through the window of…

The Environmental Health Division implements the Hazardous Waste Inspection Program throughout Orange County. The purpose of this program is to ensure that all hazardous wastes generated by…

Document Submittal Facility Compliance Inspections Violations Testing Designated Operator (DO) Plan Check & Repairs Permit to Operate New Owners Agency Information

Looking for a way to give back to Nature this Winter? Come help us behind the scenes at the Irvine Ranch Conservancy’s one-of-a-kind Native Seed Farm in Irvine! Every day at the farm is…

Enjoy the relaxation of riding in the wilderness on empty trails. Join us on this docent-led mountain bike ride through Limestone Canyon, part of OC Parks’ Irvine Ranch Open Space. We will visit…

There are critters in your backyard: big ones, little ones, furry ones, ones with feathers, and ones with scales. They go about their business and pay little attention to you. In fact, they would…

Enjoy miles of lush oak studded canyons, fascinating rock formations and sweeping views from the Overlook Trail in the tranquility of the Weir Canyon back country, part of OC Parks’ Irvine Ranch Open…

Enjoy a 3+ mile hike and gentle yoga practice in nature. The hike through Baker Canyon, part of OC Parks’ Irvine Ranch Open Space, includes an elevation gain of approximately 500 feet and will be a…

Come out and enjoy this family-fun activity on the Mesa. We will start with an activity to make your own fossil, then we will take a 2–3-mile hike looking for fossils deposited here in Orange County…