Land preservation's positive impacts

Land Preservation and Water

Delaware's Dirty Water

It will take years and hundreds of millions of dollars to fix the damage already done.

Delaware's Dirty Water - movie from Delaware Online

Did you know that over 90% of Delaware’s waters are considered to be polluted? Over 50% of New Castle County residents get their water from surface water – rivers and stream and reservoirs, such as the Brandywine River and Christina River.

In addition to being beautiful, open space plays a crucial role in protecting our environment. When it comes to the water we use for drinking, swimming, and fishing, open space is important because it...


Preserving open space and natural areas allows rain water to replenish our rivers, lakes, streams, and groundwater. This protects our precious supply of drinking water, and helps to ensure that even in drier times there is plenty of water to go around.


Natural lands, like wetlands and wooded areas, act as a filter for our water. Pollution from fertilizers, cars, construction, and all sorts of human activities can be picked up by water as it moves over the surface in developed areas. In natural areas, these pollutants are filtered out by soil and vegetation, leaving our water supply clean and safe.


Natural areas and protected open space trap and absorb water during heavy rain storms, which can help mitigate or prevent flooding in populated areas. This reduction of flood waters (and runoff in general) not only protects our homes, it also reduces the strain on local sewer and stormwater infrastructure, which can save local tax dollars!

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Contact us about land conservation opportunities for your property

Derek Stoner, Family Program and Conservation Project Coordinator, Delaware Nature Society Ginger North
Associate Director for Conservation
302.239.2334 x 100
Email Ginger