College Settlement in Pennypack Watershed

This storm water control measure (SCM) is located at the headwaters of Pennypack Creek, at the College Settlement Camp Site in Horsham, PA. The SCM is comprised of two retention basins followed by a detention basin connected to an agri drain at the outflow. The overall system is designed to manage a 2 inch storm from a 55 acre catchment area. 

College Settlement
College Settlement

At the College Settlement site, our team is currently collecting weather, water quantity and water quality data. 

aerial view
College Settlement aerial view with monitoring equipment locations and sampling points


To accurately portray climate conditions in our models, in March 2016, our team has installed a weather station at College Settlement that monitors rainfall, temperature, solar radiation, wind speed, barometric pressure, and humidity. The installed sensors include a MetOne 360 precipitation gauge, a MetOne anemometer, and an Apogee pyranometer. All of the weather parameters are logged in 5 minute intervals and uploaded every 15 minutes to this website.

College Settlement Site
Sam Butwill and Sarah Rife at the College Settlement Site along with the dog Kiska

Water Quantity

The inflow to the SCM at College Settlement is complex, and there is no single point of entry. Therefore, the inflow will be modeled in the US Environmental Protection Agency’s (EPA) Storm Water Management Model (SWMM). Outflow from the system has a single point of release, through an AgriDrain. Flow through the AgriDrain is currently being measured with a Thel-mar weir connected to a bubbler. The measured outflow will be used to calibrate our SWMM model of the site. Additionally, one bubbler was installed at each one of the ponds to measure water level and infiltration. Data from the bubblers is logged every 5 minutes and reported every 15 minutes in this website.

Water Quality

During both storm events and baseflow conditions, water samples are collected from the site and analyzed for total suspended solids (TSS), total dissolved solids (TDS), nitrogen, and phosphorus. Grab samples are collected from each of the three features of the SCM, the AgriDrain, and a point downstream of the SCM. Water quality testing for the site began in June 2016.