Contractors have abandoned about 10 no parking signs and barricades on 20th street between San Pablo and Telegraph. The majority of them are located in front of 630 20th st/ Thomas L Berkley Way near the intersection of San Pablo. Some say PG&E on them Saroni drive from 7/25/16 to 7/25/16 which means they reused old signs. The last time this happened PG&E left them on the street for over two months. Some signs say OB1600903 info 925-674-6477. Please call whomever is responsible for this work and have them remove their signs. Also, there is a dumped trash can filled with debris in front of PG&E substation L next door to 630 Thomas L Berkley. On the backside of Substation L there is an abandoned mattress. Please call PG&E and have them remove these items. Any assistance you can provide would be appreciated.