Documenting the underground: Philly's sewer historian Discuss Documenting the underground: Philly's sewer historian http://www.newsworks.org/index.php/health-science/item/46030-documenting-the-underground-phillys-sewer-historian- Tue, 18 Jun 2013 02:50:53 --400 JComments Adam Levine--very helpful http://www.newsworks.org/index.php/health-science/item/46030-documenting-the-underground-phillys-sewer-historian-#comment-49429 Harry Kyriakodis Thu, 29 Nov 2012 00:08:13 --400 http://www.newsworks.org/index.php/health-science/item/46030-documenting-the-underground-phillys-sewer-historian-#comment-49429 underground streams/water table http://www.newsworks.org/index.php/health-science/item/46030-documenting-the-underground-phillys-sewer-historian-#comment-49411 Patricia Lowe Wed, 28 Nov 2012 19:49:06 --400 http://www.newsworks.org/index.php/health-science/item/46030-documenting-the-underground-phillys-sewer-historian-#comment-49411 Adam Levine http://www.newsworks.org/index.php/health-science/item/46030-documenting-the-underground-phillys-sewer-historian-#comment-49385 Arthur Holst Wed, 28 Nov 2012 14:08:04 --400 http://www.newsworks.org/index.php/health-science/item/46030-documenting-the-underground-phillys-sewer-historian-#comment-49385 Jealous http://www.newsworks.org/index.php/health-science/item/46030-documenting-the-underground-phillys-sewer-historian-#comment-49366 Richard Wed, 28 Nov 2012 10:06:14 --400 http://www.newsworks.org/index.php/health-science/item/46030-documenting-the-underground-phillys-sewer-historian-#comment-49366