Earlham College
OP-23: Stormwater Management

The Earlham College follows the Storm Management Pollution Prevention Plan (SWPPP), which includes: I) determined Spill-Clean-Up Procedures: A)Stop the spill B)Instructions for the Containment and Clean-Up of the Spill and II) Best Management Practices (BMP's) to Reduce Storm Water Pollution: A) In Construction Sites, follow determined strategies of: Sediment and Erosion Control -Vegetation – permanent or temporary protection with plants and grasses -Mulching – straw or wood mulch, erosion control blankets - Silt Fence - Inlet Protection – filter fabric or stone berm - Check Dams – rock or straw bale - Construction entrances should be constructed and maintained Waste Management -Control trash and debris by using designated containers with lids and containment -Secure trash on trucks prior to transport using tarps or other approved methods -Keep trash and litter picked up before it leaves the site B) For Fleet Maintenance, follow determined strategies of: Fueling Leaks and Spills Cleaning and/or Washing Disposal C) Material Storage procedures Follow MSDS instructions Store in original or other clearly marked container Store in sealed containers indoors when possible or outside under roof when necessary use secondary containment Inspect containers on a regular basis Aggregate materials shall be stored in a manner to prevent migration of material off-site during rains and away from storm drains Salt shall be stored under roof and away from storm drains D) Determined procedures for Storm Water Conveyance System Maintenance E) Street Maintenance guidelines for: -Striping -Pavement Repair F) Grounds Maintenance guidelines

Behind one of our college houses, we have porous pavement for the parking lot size 20'x20' installed of Modular Concrete Turfstone Pavers.

Three out of the five ponds we have at the back-campus area work as retention ponds: Cope pond, Word pond and Markle pond. They were all made in 2007 and each has about 100 feet of diameter and 4 to 5 feet of depth. They stop the runoff from the playing fields and the horse barn from reaching the back-campus woods and affecting its soil. These ponds fill in Spring and dry up in the Summer, nourishing the local wildlife.

We follow a Stormwater Management plan that is standard for Richmond and the State of Indiana. The retention ponds were a project done mainly by the Biology department, specially John Iverson, aiming to support the local amphibians and reptiles, as well as reducing the impact of stormwater runoffs.