Over the past few months we have been working on developing a series of maps which illustrate Delawareans’ unique relationship to clean water and clean water infrastructure.
We created these maps in conjunction with Bright Fields Inc. as well as the University of Delaware’s Water Resource Center. The poverty concentrations are based on federal census data. Water and sewer data are from state and county databases. These maps are organized by legislative district, and tell a story about how areas served by sewers and public water systems intersect with poverty concentrations. These maps show that the lack of access to sewer and public water is often correlated to areas with high poverty concentrations in our state.
Descriptions and links to the maps are included below.
Delaware Legislative Districts Showing Public Sewer Service Areas and Poverty Rates
The black, forward-slashing on this map shows Sewer Service Areas. Residents of these areas are served by sewage treatment plants. Residents outside of these areas flush their wastes into septic tanks and drain fields that, in Delaware’s sandy soils, can be a major source of groundwater contamination.
Delaware Legislative Districts Showing Public Water Service Areas and Poverty Rates
The black, backslashing on this map shows the extent of Water Service Areas. Residents inside these areas receive their drinking water from regulated wells or surface water systems that are tested routinely and treated to remove EPA-regulated contaminants. Residents outside of these areas receive their drinking water from a single or community wells, many of which may or may not be tested or treated for contaminants.
Delaware Legislative Districts Showing Impaired Surface Waters and Poverty Rates
The red segments on this map show dreams that have poor water quality. Delaware’s list of impaired waters includes 377 bodies of water that suffer from excess nutrients, low-dissolved oxygen, toxins, and/or bacteria that negatively impact human and aquatic life. Approximately 90% of Delaware’s waterways are considered impaired. [It is important to note that many Delaware streams have not yet been tested.]
We are happy to answer questions and further discuss the thought process behind these visuals at any time at Emily.Knearl@DelNature.org.