Stormwater Pollution Prevention Events
NOVEMBER 2025
We all play a part in preventing stormwater pollution. Here are some ways to get involved in November and help protect our local waterways! All events are free unless otherwise indicated.
Ongoing beach and community cleanups help protect the County’s waterways from stormwater pollution and can help preserve water quality for years to come. The County thanks the following beach and community cleanup event partners for their ongoing support in preventing stormwater pollution: I Love A Clean San Diego (ILACSD), Surfrider Foundation San Diego, San Diego Coastkeeper, The San Diego River Park Foundation, Tijuana River National Estuarine Research Reserve (TRNERR), San Diego Canyonlands, San Dieguito River Park, San Dieguito River Valley Conservancy, Friends of Ruffin Canyon, Friends of Rose Creek, Friends of Famosa Slough, Agua Hedionda Lagoon Foundation, California State Parks Foundation, ASCENDtials, San Diego Bird Alliance, Preserve Calavera, Escondido Creek Conservancy, Nature Collective, Friends of Sunset Cliffs, Spring Valley Community Alliance, and Keep America Beautiful.
Now through July 4, 2026 – Keep America Beautiful Great American Cleanup – Learn more or pledge.
November 1
November 2
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10:15am to 11:30am – ASCENDtials Climate Cares Black’s Beach Cleanup Event. Learn more here. To register, click on the ‘check availability’ button and select the 11/2 date.
November 4
November 6
November 7
November 8
November 9
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10:15am to 11:30am – ASCENDtials Climate Cares Silver Strand Beach Cleanup Event. Learn more here. To register, click on the ‘check availability’ button and select the 11/9 date.
November 11
November 13
November 14
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9am to 11am – San Diego Canyonlands Sips & Sagebrush at Mission Hills Canyon. Learn more or sign up.
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9am to 11am – Agua Hedionda Lagoon Foundation Trail Cleanup Event – Garfield Street Trailhead/Hubbs Trail. Learn more or sign up.
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9am to 12pm – TRNERR Friday Stewardship Session for Long-term Volunteers. Learn more or sign up.
November 15
November 16
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12:15pm to 1:30pm – ASCENDtials Climate Cares Highway Cleanup at 5/Mission Bay Beach Club. Learn more here. To register, click on the ‘check availability’ button and select the 11/16 date.
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12:15pm to 2pm – ASCENDtials Climate Cares Highway Cleanup Event – Coronado Route 75. Learn more here. To register, click on the ‘check availability’ button and select the 11/16 date.
November 18
November 19
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8am to 12pm – The San Diego River Park Foundation Preserve Stewards at Eagle Peak Ranch Habitat Restoration. Learn more or sign up.
November 20
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8am to 10am – The San Diego River Park Foundation Grant Park Community Stewards. Learn more or sign up.
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8:30am to 12:30pm – San Diego River Park Foundation Water Quality Monitoring: West County. Learn more or sign up.
November 21
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8:30am to 12:30pm – San Diego River Park Foundation Water Quality Monitoring: East County. Learn more or sign up.
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9am to 12pm – TRNERR Friday Stewardship Session for Long-term Volunteers. Learn more or sign up.
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9am to 12pm – San Diego Bird Alliance and Friends of Rose Creek – Rose Creek Habitat Restoration. Learn more or RSVP.
November 22
November 23
November 25
November 27
November 28
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County of San Diego Parks and Recreation – Green Friday Weekend Environmental Stewardship and Outdoor Fitness Events. Several parks and preserves will be offering activities throughout the day. $5 park day-use fee waived on Friday November 28th. Learn more.
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9am to 12pm – TRNERR Friday Stewardship Session for Long-term Volunteers. Learn more or sign up.
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9am to 12pm – San Diego Bird Alliance and Friends of Famosa Slough Habitat Restoration and Maintenance. Learn more or register.
November 29
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County of San Diego Parks and Recreation – Green Friday Weekend Environmental Stewardship and Outdoor Fitness Events. Several parks and preserves will be offering activities throughout the day. Learn more.
November 30
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County of San Diego Parks and Recreation – Green Friday Weekend Environmental Stewardship and Outdoor Fitness Events. Several parks and preserves will be offering activities throughout the day. Learn more.
Monthly/Ongoing or On Your Own Stormwater Pollution Prevention Events:
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Tuesdays and Fridays, 8am to 11am – The San Diego River Park Foundation River Assessment Field Teams (RAFT). Learn more or sign up.
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Tuesdays and Fridays, 9am to 12pm – San Dieguito River Park Dust Devils Habitat and Trail Restoration Events – Inland and Coastal Trails. Learn more.
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Wednesdays and Saturdays, 8am to 11am – The San Diego River Park Foundation River Rescue Cleanups. Learn more or sign up.
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San Diego Surfrider Foundation Ongoing Solo Cleanups. Learn more.
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Coastkeeper San Diego Six Cleanup Challenge, Flexible Dates/Times. Learn more and see the list of challenge sites.
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ILACSD Adopt-A-Beach/Adopt-A Canyon Program, Flexible Dates/Flexible Times – Adopt a beach or canyon and lead independent cleanups on your schedule. Learn more and adopt a location.
County of San Diego – Waterscape Rebate Program Rainwater Harvesting Workshop - Fallbrook – November 15, 10am
Join the County of San Diego’s Waterscape Rebate Program in Fallbrook on Saturday, November 15th at 10:00 AM for a Rainwater Harvesting Workshop. Learn how to install a rain barrel and collect rainwater for future use—a simple way to reduce pollution, save water, and support a healthy garden. Residents of unincorporated San Diego County qualify for a FREE rain barrel.
Fallbrook Land Conservancy – 1815 S. Stage Coach Ln, Fallbrook, CA 92028. Learn more or register.
University of California Cooperative Extension’s (UCCE) Integrated Pest Management (IPM) Program – The following events will be offered in November.
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November 1, 10am to 11:30am – Healthy Garden-Healthy Home Hybrid Community Workshop – Control Ants the Healthy Way: Controlling Ants in Your Home and Garden – Learn what to do when ants invade your plants and home, and how to make your environment less attractive to them. Topics also include how chemicals and bait control work. In-person workshop location: San Diego County Operations Center, Suite 201, 9335 Hazard Way. Zoom workshops are also available. Learn more or register.
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November 12, 9am to 12pm (SPANISH) and 1pm to 4pm (ENGLISH) – Pesticide Safety Zoom Workshop, Train-the-Trainer Refresher (fee $100) – This workshop provides a review of the required annual training topics for fieldworkers and handlers. Learn more or register.
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November 10 and 20, 9am to 4:30pm (ENGLISH); November 14 and 18, 9am to 4:30pm (SPANISH) – Pesticide Safety Zoom Workshop, Instructor Training (fee $300) – The Train the Trainer workshop will qualify participants to train fieldworkers and pesticide handlers under California pesticide regulations. Learn more or register.
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November 12, 3pm to 4pm – UC Ag Experts Talk Webinar Series – In-house Diagnostics for Disease Management: LAMP for Red Blotch Detection in Grapevines – Receive an introduction to grapevine red blotch virus (GRBV) including its ecology, physiological impacts, symptoms, and management. Learn about the use of loop-mediated isothermal amplification (LAMP) to detect the virus in grapevine petiole, cane and trunk tissue. Learn more or register.
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November 20, 12pm to 1pm – Urban & Community Webinar Series – Autumnal Antagonists: Pests During Fall in California – Learn about insects that overwinter inside structures, seasonal ant invasions, fall-swarming termites, lawn grubs, and more during this wide-ranging pest prevention and management discussion. Learn more or register.
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California Landscape Contractors Association – 2025 Convention: Sonoma County – November 5 through 8, daily schedule varies ($$ member and non-member fees vary) – Convention activities include membership meetings and welcome reception, presentations, tours and awards. Learn more or register.
Alta Vista Botanical Garden – Kids in the Garden Classes – November 8, 10am to 12pm ($5 fee, includes entry to the Garden) – Kids and their families are invited to attend Saturday classes featuring hands-on activities, conservation lessons, and tours of the gardens. Topics vary by month with November’s theme being Cooking and Nutrition. Learn more or pre-register with Farmer Jones at farmerjonesavbg@gmail.com.
The Water Conservation Garden – The following events will be offered in November. Offered in partnership with Otay and Helix Water Districts, Sweetwater Authority, and Grossmont-Cuyamaca Community College District.
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November 14, 9am to 4pm – Free-Day Fridays – Attendees will receive free admission on the second Friday of every month. Activities include mini-tours, arts & crafts, community partner booths, scavenger hunts and prizes, and more. Learn more.
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November 29, 9am to 4pm – Monthly Water District Wave-In Day – On the last Saturday of every month, free admission to the Garden is offered to customers of supporting water districts for a day of learning about sustainable living and water-wise gardening. Enjoy workshops, community partner booths, and water-wise exhibits that help you improve your individual impact on the planet. Learn more or register.
Landscape and Water-Savings Webinars – A series of landscape and water-savings webinars will be offered in November hosted by various regional water agencies. Dates and times vary. All events will be virtual and free unless otherwise noted.
The following topics will be hosted or co-hosted by Metropolitan Water District of Southern California. See calendar and learn more or register.
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Garden Design Workshop – Learn how to identify critical steps for successfully designing a watershed-wise landscape. Topics include creating a successful planting plan, developing a palette of climate-appropriate plants, and sizing the rainwater capture area. Offered in partnership with the City of Oceanside.
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California Friendly & Native Plant Landscape Training – Learn how to design a yard using the four principles of gorgeous and watershed-wise landscaping. Topics include building healthy soil, capturing rainwater, selecting climate-appropriate and native plants, and use of high-efficiency irrigation. Offered in partnership with the Vallecitos Water District and Vista Irrigation District.
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Transforming Lawns: A Sustainable Approach – Learn how to transform your yard into a beautiful, sustainable, and water-efficient landscape. Topics include selecting climate-appropriate plant palettes, planning a new landscape that thrives with less water, and exploring sustainable landscape techniques, functions, turf removal options and rebates. Offered in partnership with the Vallecitos Water District and Vista Irrigation District.
The following topics will be hosted by California American Water. See calendar and learn more or register.
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Break it Up! Permeable Everywhere – Learn how to create permeable hardscape options throughout the garden including walkable plants, pathways, and grading hardscape to capture rain. Topics also include how to cut existing concrete and permeable concrete's pros, cons, and maintenance.
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Landscape Myth Busters – Learn about common landscape misconceptions including what plants really need to thrive, how to save money and time working with natural systems, and differences in irrigation systems. Offered in partnership with the Monterey Peninsula Water Management District.
San Diego Botanic Garden Monthly SAPLinGS Sessions – Wednesdays, Thursdays, and Fridays in November, 10am to 12pm – Children are invited to join for Science, Art, and Play in Garden Spaces (SAPLinGS) activities. Topics vary by month and will focus on a different plant or nature-based theme. Science activities engage kids with cool hands-on learning that stimulates curiosity. Art activities focus on projects that spark the imagination. Learn more.
WaterSmart Residential Landscape and Irrigation Events – The San Diego County Water Authority’s WaterSmart Program is providing past recordings of 3-Hour Landscape Workshops. View past workshops.
City of Chula Vista Free Compost Event – November 8, 8am to 12pm – Attend this free compost pick-up event for residents of Chula Vista. Offered in partnership with Republic Services. Learn more.
I Love a Clean San Diego – The following events will be offered in November.
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November 15, 8am to 12pm – Compost Giveaway at Los Penasquitos Ranch House – Attend this free compost pick-up event for City of San Diego residents only. Sponsored by the City of San Diego Environmental Services Department. Site location: Los Penasquitos Ranch House. Learn more or register.
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November 16, 10:30am to 12pm – Eco-Glam Sustainable Fashion Workshop - EUSD Farm Lab –Learn how to create a conscious closet and reduce textile waste! This event features a panel Q&A with local experts in sustainable fashion and textile recycling. Topics include upcycling ideas, low waste laundry habits, secondhand shopping tips, and the environmental impacts of fast fashion. Following the panel, attendees can enjoy a clothing swap hosted by ILACSD, textile upcycling activities, and shopping from sustainable clothing and accessories vendors. Sponsored by the City of Encinitas. Site location: EUSD Farm Lab, Encinitas. Learn more or register.
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November 19, 11am to 12pm – From “Ick” to Easy: Simple Steps for Food Scrap Recycling Webinar Learn the ins and outs of the County of San Diego’s curbside organic waste recycling program! Topics include the importance of diverting organic waste from our landfills and where processed organic waste goes after collection. You’ll also learn what can be disposed of in your green bin, and tips and tricks for keeping your green bin clean. Sponsored by the County of San Diego. Learn more or register.
Solana Center for Environmental Innovation Waste Reduction Events – The following events will be offered in November.
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November 1, 10am to 12pm – Backyard Composting and Bokashi Basics Workshop - San Diego – Learn the basics of traditional composting and get an introduction to bokashi, a fermentation method that preserves your food scraps until you’re ready to compost them. Funded by the County of San Diego. Site host: 4S Ranch Community Garden. Learn more or register.
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November 1, 12pm to 2pm – Natural Indigo Tie-Dye Workshop ($$ fees vary) – Get a hands-on introduction to natural dying and learn how to create one-of-a-kind upcycled garments, household goods, and accessories. Through a short presentation, participants will also learn about the impact of clothing and textile waste, and the urgent need to move towards more sustainable models in fashion. Learn more or register.
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November 5, 12 and 13 – Food Recovery Inspection Training – California SB 1383 Compliance ($900 fee; discount for CRRA and SWANA members) – In this 2-part webinar (over 3 days), experts will present deep insights into the Edible Food Recovery aspect of California’s Short-Lived Climate Pollutant Reduction Act SB 1383. This program allows food businesses to donate 100% of surplus edible food that would otherwise be disposed of. Day 1 introduces relevant aspects of the law and then focuses on edible food rescue requirements. Days 2 and 3 take place over two days and provide comprehensive training for conducting edible food recovery inspections in the commercial sector. Registrants who attend all 3 days of the training will receive a certificate of completion. Offered in partnership with California Resource Recovery Association (CRRA) and Solid Waste Association of North America (SWANA) Southern California Founding Chapter. Learn more or get tickets.
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November 5, 9am to 1pm – Part 1: Fundamentals of SB1383 Food Recovery - Compliance Overview. Learn about relevant aspects of the law and edible food rescue requirements. Topics include the impetus behind the law, overview of regulations, edible food recovery requirements, donation guidelines, liability, and tax benefits. This webinar addresses various perspectives including jurisdictions, food-generating businesses, food recovery organizations, haulers, and residents. Part 1 alone will not address training specific to inspections.
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November 12 and 13, 9am to 1pm – Part 2: Inspection Training for Food Recovery. Receive comprehensive training for conducting edible food recovery inspections in the commercial sector. Topics include guidance for conducting food recovery inspections at businesses and food recovery organizations, common stumbling blocks for each business sector, inspection demonstrations, and interactive exercises.
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November 8, 10am to 12pm – In-Ground Composting with Worms Workshop - Valley Center – Learn about the benefits of vermicomposting (composting with worms) and turning food waste into a natural fertilizer for your plants. Key topics include appropriate tools, materials and steps to start a vermicompost bin, how to feed your worms, and which foods are suitable. All pre-registered attendees who are residents of unincorporated San Diego County can receive a free kitchen scraps container. Funded by the County of San Diego. Site location and host: Bates Nut Farm. Learn more or register.
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November 15, 10am to 12pm – Backyard Composting Basics Workshop - Borrego Springs – Learn the basics of traditional backyard composting including the benefits of composting, bin options, and how to build a compost pile. Funded by the County of San Diego. Site location and host: Borrego Art Institute. Learn more or register.
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Household Hazardous Waste (HHW) Household Pickup Service ($10 fee for people under 65; free for people 65 and over) – A HHW pick-up service is being offered to residents in San Diego County. Accepted items include electronic waste, light bulbs and fluorescent tubes, batteries, fuel, smoke detectors, cleaning products, paint, and more. 125 pounds or 15 gallons (whichever one comes first) can be picked up at one time. Call CleanEarth at 800-714-1195 to schedule a pickup and confirm what items are accepted. Learn more.
Living Coast Discovery Center – The following composting events will be offered in November.
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2 de noviembre, de 11:30am a 12:30pm – Taller de Compostaje Bilingüe / Bilingual Composting Workshop (Dual-language event in English and Spanish) – Aprenda los conceptos básicos sobre cómo comenzar su propia pila de compostaje y convertir los desechos de alimentos en tierra rica en nutrients. Asista a estos talleres in situ, gratis con la entrada. También se encuentran disponibles talleres de video pregrabados. Patrocinado por la Ciudad de Chula Vista. Obtenga más información o regístrese.
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November 9, 16 and 23, 11:30am to 12:30pm – Sunday Compost Workshops – Learn the basics on how to start your own compost pile by attending these on-site workshops. Pre-recorded Compost Workshop videos are also available. Sponsored by the City of Chula Vista. Learn more or sign up for the November 9th, 16th and 23rd
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November 30, 11:30am to 12:30pm – Vermicomposting Workshop – Learn how to build and care for your own worm bin. Learn more or register.
Unincorporated Residents of San Diego Cleanup and Waste Reduction Events – The following events will be offered in November by the County of San Diego.
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November 1, 9am to 2pm – Household Hazardous Waste and E-Waste Collection Event - Borrego Springs – Unincorporated residents are invited to properly dispose of household hazardous waste and electronic waste. Household hazardous waste includes, but is not limited to, batteries, cellphones, computers, printers, oils, paint, and more. No business waste, tires, medication, large appliances, and more allowed. Site location: Borrego Springs High School (2281 Diegueno Rd. Borrego Springs). Learn more.
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November 8, 8am to 12pm – Residential Waste Cleanup Event - Fallbrook – Unincorporated residents of Fallbrook can dispose of bulky items and recycle electronic waste, broken appliances, mattresses and box springs, and more. The event will also include free mulch for takeaway, paper shredding services, and will accept reusable items for donation. No household hazardous waste, tires, and construction materials allowed. Offered in partnership with the County of San Diego and EDCO. Site location: Fallbrook Union High School (2400 S Stage Coach Lane, Fallbrook). Learn more.
San Diego Fixit Clinics – Learn how to reduce waste by fixing things instead of throwing items away at the following Fix-It Clinics in November. Bring broken or non-working items for assessment, disassembly, and possible repair. Workspace, specialty tools, and guidance to help you take apart and troubleshoot your item will be provided. Clinics hosted by SD Fixit Clinic with the help of many other zero waste partners.
University of California Agriculture and Natural Resources – The following events will be offered in November.
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November 15, 8:30am to 12:30pm – Gifts from the Kitchen - San Diego County Master Food Preserver (MFP) Program (fee $40) – Celebrate the season of giving in this fun, hands-on class designed to teach you how to create delicious and beautifully packaged preserved food gifts perfect for the holidays. Learn about safe, research-based preservation techniques along with creative packaging ideas. You’ll also take home items and recipes to inspire your own gift-making at home. Learn more or register.
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November 16, 4pm to 5pm – Ask a UC Master Food Preserver Live Q&A Webinar – A panel of volunteers specializing in freezing, dehydrating, canning, and food safety will be available to answer your questions. They will also share their tips so you can safely and successfully preserve food at home. Learn more or register.
SD Environmental Services One-Day Collection Events – City of San Diego – The following household hazardous waste (HHW) collection events will be offered in November. Learn more.
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November 8, 9am to 1pm – Vista Del Mar Middle School, North Parking Lot (4885 Del Sol Blvd., San Diego).
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November 22, 9am to 1pm – Balboa Park, Inspirational Parking Lot (Corner of Park Blvd. & Presidents Way).
South Bay Sustainable Communities Network – Monthly Compost Pile Turnings – Various days, timeslots, and cities – Attend these monthly turnings of South Bay Sustainable Communities Network soil saver compost bins at select compost hub locations throughout South San Diego County. Compost hubs are also available to community members to drop off food scraps. Scroll to the bottom of home page to check calendar for hub locations and dates.
Nature Collective – San Elijo Lagoon Discovery Tour – November 1, 10am to 11:30am – Get a guided tour of the salt marsh, mudflats, and native plants of the San Elijo Lagoon. Learn more or reserve your spot.
Escondido Creek Conservancy Welcome to the Watershed Series! – November 1, 9am to 12pm – Enjoy nature and learn about the work the Conservancy is doing to protect special places throughout the Escondido Creek Watershed. This free monthly activity could include a gentle nature of flower walk, hiking, biking, or nature photography. Learn more or register through the ‘details’ tab.
Tijuana River National Estuarine Research Reserve/Reserva Nacional de Investigación de Estuario del Río Tijuana. The following events will be offered in November.
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5 de noviembre (horario por determiner) – Tijuana Río Conecta Taller de Educación Ambiental – Este taller de educación ambiental para el público en general contará con módulos informativos de diversas organizaciones de Tijuana que abordarán temas medioambientales. Más información.
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Saturdays 11am to 12pm – Junior Rangers Program – Ongoing Kids’ Educational Event – Kids ages 8 through 12 are invited to take part in discovering the rich heritage preserved in parks. They will participate in hands-on activities and can earn awards such as pins, certificates, and patches as they progress through the program! Learn more by clicking on the November 1st, 8th, 15th, 22nd, and 29th
Buena Vista Audubon – The following events will be offered in November:
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November 9, 11am to 12:30pm – Kids’ Nature Clubhouse and Trail Exploration – School-aged children and their families are invited to complete a nature-inspired craft and explore the lagoon trail with a different focus each month. The 1/2 hour trail adventure starts from the Nature Center at 11:00am. Learn more.
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November 24, 10am to 10:45am – Preschool Nature Storytime – Join the Nature Center for nature-themed stories for preschool children, aged 2 ½ to 5 years. There will be a story, songs, fun craft, and special theme each month. Learn more.
San Diego Coastkeeper - Watershed Watch, Mission Bay Water Quality Monitoring Program – Be part of a team of passionate individuals interested in protecting our waterways. Join San Diego Coastkeeper’s Mission Bay Water Quality Monitoring Program and participate in monthly field days to collect water samples at ten sites in Mission Bay. The following events will be offered in November.
Agua Hedionda Lagoon Foundation – The following events will be offered in November.
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November 24 through 26, 9am to 3pm – Discovery Fall Camp 2025 ($$ fees vary) – Science and nature Discovery Camps feature hands-on educational lessons around a central theme designated for that camp week. All camps take place outdoors in our Nature Nodes, and are filled with nature walks, animal interactions, and crafts. Camp groups are split by age ranges and capped at 12 campers per group with 1 teacher. This camp is for children in kindergarten through 5th grade. Learn more or register.
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Daily program Monday through Friday, 7:30am to 5:30pm – Preschool Playdates Outdoor Program ($$ fees vary) – All children ages 3 to 5 are invited to join the daily program for nature-themed lessons and activities. Each day will include environmental education and literacy, a craft made from recycled materials, outdoor play, and more. You can register for individual days or the entire week. Early release options are available at 1pm, 3pm, and 4pm. Topics vary by month with the November topic being Thankful for Fall. Learn more or register.
The Living Coast Discovery Center – Sweetwater Safari Hike Series – Saturdays, 11:30am to 12pm – Join the Center every Saturday to explore the Sweetwater Marsh Trail on the San Diego Bay National Wildlife Refuge. Here you will learn about the history of the Marsh, salt marsh ecosystem, plants, and wildlife thriving in this protected space. Learn more or sign up for the November 1st (bilingual), 8th, 15th, 22nd, and 29th hikes.
El Living Coast Discovery Center – Caminata Safari de Sweetwater Bilingüe – Los sábados de 11:30am a 12:30pm – ¡Acompáñenos todos los sábados a explorar el sendero de la marisma de Sweetwater en el refugio silvestre nacional de la bahía de San Diego! Aprenderemos sobre la historia de la marisma de Sweetwater, el ecosistema de la marisma salada, y las plantas y vida silvestre que prospera en este espacio protegido. Mochilas con actividades divertidas, incluyendo lupas y binoculares, serán disponibles para que las familias participantes lo usen mientras estén en la caminata. Obtenga más información o regístrese.
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