Centre Square Water System
Queen Lane Water Works (1894)
Roxborough Works (1869)
Germantown Works (1851) and Mt. Airy Works (1882)
Spring Garden Northern Liberties, or Schuylkill Works (1844)
Fairmount Water Powered Works Expansion (1859 to 1861)
Fairmount Water Turbine Wheels (1851)
Fairmount Water Powered Water Works (1822)
Twenty-fourth Ward (or West Philadelphia) Works, 1855
The Centre Square Works, 1801