With an extensive combined sewer system and more frequent heavy storm events, the City of Lancaster recognized that it needed to take a different, more contemporary approach with its stormwater; so, in 2011, the city adopted a 25-year Green Infrastructure Plan. This plan identified green infrastructure as stormwater management methods that:

• infiltrate (porous pavements, sidewalks, and gutters; linear infiltration systems)
• evaporate, transpire and reduce energy consumption (vegetated roofs, trees, planter boxes)
• infiltrate and transpire (rain gardens and bioretention)
• capture and reuse rainfall (rain barrels, cisterns, irrigation supply systems, and gray water systems)

The plan went on to note that green infrastructure has many benefits, including:

• Environmental – recharges ground water, provides natural storm water management, reduced energy usage, improved water quality.
• Social – beautifies and increases recreational opportunities, improves health through cleaner air and water, improves psychological well-being.
• Economic – reduces future costs of stormwater management and increases property values.

Since the plan was completed, the city has been implementing it consistently to beautify and improve the city. Planners can view these installations in person in Lancaster or can read the plan online.