Mapping Dog Waste

Last month, we were involved in a project that mapped out water drains in urban areas to show how community participatory mapping can be used in preventing urban flood issues. The project which took place in Seoul, South Korea, was a part of UN-GGIM-AP ( We surveyed 164 water drains with volunteers, and found that only 20% of them were functional (25% were covered by something to avoid drainage smell, and 55% was filled or blocked by garbage).

Back in the States, an interesting IMRivers project has been ongoing with the Maryland DNR. Students have been working with Maryland Department of Natural Resources on Storm Drain Stenciling (

Storm drains were designed to be the fastest and most efficient way of getting rainwater off streets and parking lots. Unfortunately, water that flows into the storm drains carry trash and sediment from the street, fertilizers, toxins from pesticides, household cleaners, gasoline and motor oil. All of this rainwater in the storm drains then ends up in the local stream or river.

If you or your group want to make a similar map for your community, let us know! This can also be a great project for students to learn and get involved in urban water issues. IMRivers is a great tool to use for citizen science and civic engagement. Let us know if you would like to do any projects involving civic/citizen engagement using community participatory mapping like IMRivers. Also if you have any interesting mapping stories to share please let us know!