abc seven south bay reporter dustin dorsey explains how the community and environment may be impacted by this. >> a serious environmental and public health risk hidden below our county surface, contaminating drinking water wells in san jose, cupertino, sunnyvale, campbell and gilroy. ubiquitous forever chemicals known as pfas. this, according to a lawsuit filed by santa clara county that county counsel tony lopresti says intends to protect the south bay's fish, wildlife and community. >> we're certainly not trying to deliver the message that people should stop drinking water right now, but we do know that there there is uh- contamination. >> the lawsuit targets several companies, including three m and dupont, for their role in the contamination. csu east bay professor of public health michael schmeltz says exposure to harmful levels can lead to serious health risks. >> reproductive effects, uh- developmental effects and delays in children, increased risks of some cancers, and interference with the body's natural hormones. >> the chemicals are used to create products resistant to water

in santa clara county, dustin dorsey, abc seven news. >> a potentially deadly but completely preventableamong dogs in san francisco's tenderloin district, and animal welfare workers are trying to stop it. the san francisco spca and other organizations vaccinated about 100 dogs during a free parvovirus vaccine clinic today on golden gate avenue since november. san francisco animal care and control has reported nearly twice the amount of parvo cases reported in 2022. most of the cases are in the tenderloin and soma neighborhoods, where many unhoused residents live with their dogs. >> parvo is a virus that attacks the stomach and intestines of dogs, and it causes severe vomiting and diarrhea, bleeding, sometimes blood in there, leading to really bad dehydration. and like i said, it can be life threatening. but the really good news is, is that it's preventable with vaccinations, which is what we're doing here today. >> another canine clinic is scheduled for next month for dogs to get their follow up parvo booster. >> up next at six, another look at the forecast as we are tracking rain throug

in san jose, dustin dorsey, abc seven news. >> she is so inspiring. a huge congratulations to her. well, coming up next here oc seven news at six, a costco deal. and no, we're not talking about buying in bulk. with the way that pg&e handled the wildfires. yeah. yeah. i totally, totally understand. we're adding a ton of sensors. as soon as something comes in contact with the power line, it'll turn off so that there's not a risk that it's gonna fall to the ground and start a fire. okay. and i want you to be able to feel the improvements. we've been able to reduce wildfire risk from our equipment by over 90%. that's something i want to believe. [skateboard sounds] wall street is seeing red today across the board. here's a look at the numbers. the dow dropped more than 337 points. the nasdaq fell 54. the s&p 500 lost 30. 18,000 costco workers represented by the teamsters union are ready to strike if a new contract isn't reached by midnight. the union says the contract needs to reflect costco's record profits. last fiscal year, costco's net income was double what it was in 2019. costco

abc seven news south bay reporter dustin dorsey has the inspiring story of perseverance through this painful ordeal. >> fear is at an all time high for many immigrant families. fear of the unknown. fear of losing family. fear of deportation a feeling that hits home for san jose's hayley ayala mejia. >> i don't believe family should be separated, and as a mexican american, i feel strongly impacted because a lot of mexican immigrants sometimes don't have family in the united states. all they have is clothes and a dream. and my parents were those people. >> what started as a dream became a nightmare, starting when ayala mejia was just eight years old, her mother was deported to mexico, leaving her father as the lone parent to ayala mejia and her younger sister. >> this is my father. his name is miguel angel ayala mora. >> in 2022, when ayala mejia was just 16, he died from complications with the covid vaccine. how challenging has that been to lose both parents in that respect? >> hard. but i think i became harder. i knew that i was the one responsible for my future. i could not change m