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.
Manhole cover for reclaimed water SFWD. en Manhole cover for reclaimed water SFWD San Francisco Water Department personal email Marianna Zavodovskaya cczero Uploaded with Manhole covers in California Reuleaux triangles
Page 2023 Free-images.com. All images are Public Domain