Earth Day & Arbor Day Celebration

Saturday, April 22 • 9 a.m. - 2 p.m. • AQMD Parking Lot, 21865 Copley Drive


earth day

Held every April, this event features several family-friendly activities, displays and demonstrations aimed at raising environmental awareness and promoting sustainable living.


  • Free document/paper shredding
  • electronic waste and textile drop-off
  • self-service mulch piles (bring your shovel, gloves and containers)


  • alternative fuel vehicles
  • drought-tolerant plants
  • aquaponics fish tank system

Information and Giveaway Booths

  • City of Diamond Bar - Environmental Services
  • Walnut Valley Water District
  • AQMD

Poster Contest
Fifth graders are invited to celebrate Arbor Day 2017 by participating in a poster contest. Three winners will be selected:

  • first-place ($50 Target gift card)
  • second-place ($25 gift card)
  • third-place ($15 gift card) winner

Entries must be received by City Hall no later than Friday, April 14. Download contest rules and entry form.

Smart Gardening Workshop - Topics covered include backyard and worm composting, water-wise gardening and grasscycling. Compost bins available for purchase - cash or check only. Reserve your seat.

Event Information:



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