![](https://waterhistoryphl.org/wp-content/uploads/DU09_20050070041.jpg?w=300)
![](https://waterhistoryphl.org/wp-content/uploads/DU09_20050070041.jpg?w=300)
![](https://waterhistoryphl.org/wp-content/uploads/DU06_20050070028.jpg?w=300)
Norman Lofton inspects sewer at Ditman and Sheffield, 1987
![](https://waterhistoryphl.org/wp-content/uploads/DU04_20050070034.jpg?w=300)
Sewer crawler Tom Cross, heading down the manhole at 26th and Grays Ferry, 1982
![](https://waterhistoryphl.org/wp-content/uploads/DU03_20050070033.jpg?w=300)
Joe Cerrone, Inspector, Industrial Waste Unit, PWD, enters storm drain to search for source of oil spill, 1989
![](https://waterhistoryphl.org/wp-content/uploads/DU02_20050070039.jpg?w=300)
Norman Lofton enters manhole at Ditman and Sheffield, 1987
![Black and white photo of a worker with darker skin, wearing protective clothing, gloves, and a hard hat with the number 25 on the front, reaching up out of a sewer manhole, only head, shoulders, and left arm visible.](https://waterhistoryphl.org/wp-content/uploads/DU08_20050070031.jpg?w=300)