The mission of the Stormwater Management Program is to maintain and promote the quality of water and environmental resources for the citizens of Mission Viejo and to ensure compliance with water quality regulations.
The Stormwater Management section of the City of Mission Viejo Public Works Department is responsible for overall management of stormwater quality issues in the City of Mission Viejo. Through public education and outreach, the Stormwater Management section ensures that all residents, businesses, and municipal departments are familiar with federal, state and local laws and regulations pertaining to stormwater quality issues, and comply with those laws and regulations. If you have questions or concerns regarding stormwater issues, contact the Public Works Department at 949-470-3056 or firstname.lastname@example.org.
- Commercial and Industrial
- Development and Construction
- Mobile Businesses
- Our Watersheds
- Residents: What You Need to Know
- Regulatory Information and Reports
- Report Polluters
- Orange County's Stormwater Program
All commercial and industrial businesses operating within the City of Mission Viejo must implement pollution control measures. Every day, business operations have the ability to come in contact with stormwater, such as material handling and storage. It is the responsibility of the business owner and employees to ensure that their activities are not negatively impacting the environment.
The City of Mission Viejo inspects commercial and industrial facilities and provides stormwater best management practices (BMP) education and enforcement, if necessary. All businesses operating within the City of Mission Viejo must comply with Mission Viejo Municipal Code Section 6.65, Stormwater Management and Discharge Control.
- IC2—Animal Handling Areas
- IC3—Building Maintenance
- IC4—Carpet Cleaning
- IC5—Concrete and Asphalt Production
- IC6—Contaminated or Erodible Surface Areas
- IC7—Landscape Maintenance
- IC8—Nurseries and Greenhouses
- IC9—Outdoor Drainage from Indoor Areas
- IC10—Outdoor Loading and Unloading of Materials
- IC11—Outdoor Process Equipment Operations and Maintenance
- IC12—Outdoor Storage of Raw Materials
- IC13—Over Water Activities
- IC14—Painting, Finishing, and Coatings of Vehicles, Boats, Buildings and Equipment
- IC15—Parking and Storage Area Maintenance
- IC16—Pool and Fountain Cleaning
- IC17—Spill Prevention and Clean Up
- IC18—Vehicle and Equipment Fueling
- IC19—Vehicle and Equipment Maintenance and Repair
- IC20—Vehicle and Equipment Washing
- IC21—Waste Handling and Disposal
- IC22—Eating and Drinking Establishments
- IC23—Fire Sprinkler Testing/Maintenance
- IC24—Disposal of Wastewater Generated by Mobile Businesses & Outdoor Activities
- Automotive Industry
- Landscape and Gardening
- Pool Maintenance
- Using Concrete and Mortar
- Guide for Food Service Facilities
- Proper Maintenance Practices for Your Business
Facilities that are subject to the requirements of the State General Industrial Storm Water Permit must file either a Notice of Intent or must file a No Exposure Certification. For more information, please visit the California State Water Resources Control Board.
New development and construction projects are required to minimize impacts on receiving water quality by incorporating Best Management Practices (BMPs) specific to both the construction and post-construction phases of the project. New development and redevelopment projects are required to minimize the impacts on receiving water quality by incorporating pollution prevention measures in their project design. Projects proponents must implement Low Impact Development (LID), source control, and treatment control BMPs. The City of Mission Viejo Local Implementation includes guidance for these requirements. Construction projects of one acre or more are regulated under the State Construction Permit. Developers are required to submit a Notice of Intent and prepare a Storm Water Pollution Prevention Plan (SWPPP). Construction sites less than one acre are regulated by the construction component Municipal Stormwater Permit. The City’s Local Implementation Plan details requirements for each type of project. Mission Viejo City staff regularly inspect construction sites and provide stormwater BMP education and enforcement if necessary.
Development and Construction Documents
- Construction Runoff Guidance Manual
- WQMP Checklist
- Alternative Project-Specific Hydromod Analysis Methods
- Technical Guide for the Preparation of Water Quality Management Plans
- Educational WQMP Template
- Interim Hydromodification Sizing Tool Guidance
- Sizing Tool
- San Diego County Low-Impact Development Handbook (2007)
- Stormwater BMPs
- Additional Low-Impact Development Resources
The City requires all mobile businesses to implement best management practices (BMPs) in order to reduce the discharge of stormwater pollutants into storm drains. Categories listed below are considered mobile businesses.
General Types of Businesses/SIC Codes
|Mobile automobile or other vehicle washing||Auto washing/detailing, boat washing
|Pest control services||7342|
|Mobile carpet, drape or furniture cleaning||7217|
|Construction||Cement mixing or cutting; masonry; painting and coating
General building contractors
Special trade contractors (plumbing, heating/AC, electrical, carpentry, roofing)
1500s, 1600s, 1700s
|Landscaping||Lawn and garden services, ornamental shrub and tree services
|Pool and fountain cleaning||7349|
|Portable sanitary services|
|Mobile pet services||750, 752|
|Surface cleaners||Power-sweeping services (driveways, parking lots)
Power-washing services (building exteriors)
Pressure-washing services (buildings, decks, fences)
Steam-cleaning services (building exteriors)
Washing services (driveways, parking lots)
- Compliance BMPs for Mobile Businesses
- Tips for Landscaping and Gardening
- Tips for Pool Maintenance
- Tips for Projects Using Paint
- Tips for Using Concrete and Mortar
- BMP Fact Sheets
Simply put, a watershed is an area of land that catches rain and snow and drains or seeps into a marsh, creek, river, lake or groundwater. Homes, farms, forests, small towns, and big cities can make up watersheds. Some watersheds cross county, state, and even international borders. Watersheds come in all shapes and sizes. Some are millions of square miles while others are just a few acres. Just as creeks drain into rivers, watersheds are nearly always part of a larger watershed. In Orange County there are 13 different watersheds that all eventually drain, through a network of rivers and creeks, to the Pacific Ocean. These creeks and rivers are also known as tributaries. Mission Viejo is a part of two watersheds—Aliso Creek Watershed and San Juan Creek Watershed.
Everyone lives in a watershed. What you and others do on the land impacts the quality and quantity of water and our other natural resources. Managing the water and other natural resources is an effective and efficient way to sustain the local economy and environmental health. Along with public education efforts, the City of Mission Viejo is working with the other cities that make up our watersheds to develop plans to better protect and manage our waterways. Please continue to do your part by following the tips for household, landscape, and auto maintenance that the City has provided in numerous publications.
Aliso Creek Watershed
The northern tip of the City is located in the Aliso Creek Watershed. The Aliso Creek Watershed covers 30.4 square miles and includes portions of the cities of Aliso Viejo, Dana Point, Laguna Niguel, Laguna Woods, Laguna Beach, Lake Forest, and Mission Viejo. Its main tributary, Aliso Creek, originates in the Santa Ana Mountains inside the boundaries of the Cleveland National Forest. Smaller tributaries include Wood Canyon, Sulphur Creek, the Aliso Hills Channel, and English Canyon Channel. English Canyon is the main route for water flowing through Mission Viejo.
Each of us can affect the quality of that water by our everyday habits. Find out what you can do to protect our waterways.
San Juan Creek Watershed
About 80% of the City is located in the San Juan Creek Watershed. The San Juan Creek Watershed covers 133.9 square miles and includes portions of the cities of Dana Point, Laguna Hills, Laguna Niguel, Mission Viejo, Rancho Santa Margarita, and San Juan Capistrano. Its main tributary, San Juan Creek, originates in the Santa Ana Mountains district of the Cleveland National Forest in the easternmost part of Orange County. The Arroyo Trabuco and Oso Creek are smaller tributaries. Oso Creek is the main route for water flowing through Mission Viejo.
Even if you live miles from the Pacific Ocean, the actions you take at home and at work can affect our waterways all the way from our creeks to the ocean. Most people believe that the largest source of water pollution comes from specific sources like factories, businesses, or sewage treatment plants. In fact, the largest source of water pollution comes from city streets, neighborhoods, construction sites and parking lots.
- Did you know that when fertilizer is washed into our storm drain system, it causes an overgrowth of plant life that could clog pipes, disrupt drainage, and kill aquatic life?
- Did you know that when you wash your car in the street or driveway, you’re sending detergents and other chemicals into the creek and on to the ocean?
Please take a moment to look over the following information. You will learn about better choices for activities that take place at your home every day.
Residential Best Management Practices
- Automobile Repair and Maintenance
- Automobile Washing
- Automobile Parking
- Disposal of Green Waste
- Disposal of Pet Waste
- Disposal of Trash/Waste
- Home and Garden Care
- Household Hazardous Waste
- Water Conservation
- Car Wash Fundraisers
- Home Improvement Projects
- Home Mechanic
- Homeowners Guide for Sustainable Water Use
- Household Hazardous Waste
- Household Tips
- Keeping Pest Control Products Out of Creeks, Rivers and the Ocean
- Landscape and Gardening
- Paint Projects
- Pet Care
- Pool Draining
- Pool Maintenance
- Protecting Watersheds
- Sewage Spill Reference Guide
- Using Concrete and Mortar
- Orange County Stormwater Program: Stormwater 101
- Stormwater Pollution Prevention Public Service Announcement
- The Ocean Begins at Your Front Door Public Service Announcement
- Wyland Public Service Announcement
- Mission Viejo Local Implementation Plan
- Mission Viejo Water Quality Ordinance 10-285
- Orange County Drainage Area Management Plan (DAMP)
California Regional Water Quality Control Board—San Diego Region