This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
SEWAGE TREATMENT PLANT AT SUNSET. TWO WORKERS STAND NEAR ROCK FILTER NARA .tif Scope and content General notes Local identifier DA Environmental Protection Agency NARAAuthor Sennett Tomas Photographer File SEWAGETREATMENTPLANTATSUNSET TWOWORKERSSTANDNEARROCKFILTERNARA tif tif File SEWAGETREATMENTPLANTATSUNSET TWOWORKERSSTANDNEARROCKFILTERNARA