The community of Coppell is in a watershed, which is made up of the area around the homes, businesses, parks, and streets from which rainwater drains into the Elm Fork Branch of the Upper Trinity River. Individual actions can have an impact on the water quality in the watershed, therefore the City of Coppell ecoCoppell provides opportunities for citizens to be educated and involved in protecting the watershed. The City of Coppell's Storm Water Management Plan ensures the public is educated and involved in ways to stop water pollution.
To showcase landscape techniques that minimize pollution run-off and also conserve water, the Coppell Community Garden maintains demonstration gardens of drought tolerant landscape plants and the use of compost and mulch to avoid chemical use that could potentially run off with rain water.
Keep Coppell Beautiful encourages citizens and businesses to participate in the Adopt a Location litter prevention program and Clean Coppell, community wide litter clean-up held every spring.