Santa Cruz County and the City of Capitola closed Capitola Beach on Tuesday, November 10, 2026, after the county’s Public Health Division was notified of nine E. coli O157 infections in children. Four of the children live in Santa Cruz County. Five live in other Bay Area counties. The county says all nine cases are linked, and that the exposures “likely occurred at Capitola Beach or in surrounding waterways,” according to the county’s press release.
The short version
- Nine children are ill with E. coli O157. All nine cases are linked.
- The source is unknown. Officials point to Capitola Beach or the waterways around it, which means Soquel Creek and its lagoon.
- Capitola Beach is closed until further notice on the recommendation of the Santa Cruz County Public Health Officer.
- Water has been sampled at four locations. No results have been released.
- The county has not said how many children were hospitalized or whether any developed hemolytic uremic syndrome (HUS).
What the county has said
The closure is described as a precaution while the investigation continues. Environmental samples were taken at four places in and around Soquel Creek and the beach: an upstream location near Nob Hill, the jetty, Soquel Creek Lagoon, and the flume where the creek’s water enters Monterey Bay. More E. coli testing is planned. The county and city say they are working with the California Department of Public Health and the Centers for Disease Control and Prevention (CDC).
People are being told to stay out of the water in the posted closure area, not to drink untreated water from creeks or lagoons, to shower after contact with natural waterways, and to keep pets out of the water.
What the county has not said
A nine-child E. coli O157 cluster is a serious event, and the release leaves out most of what parents need. These are the questions I would put to the county today:
- How many of the nine children were hospitalized, and how many have HUS?
- How old are they, and when did each child get sick?
- On what dates were they at the beach or in the creek? Families who were there the same days need to know.
- What links the cases? Is it whole genome sequencing, a shared event, or interviews alone?
- Were the four water samples tested for E. coli O157 itself, or only for the indicator bacteria used in routine beach monitoring? When will results be public?
- What is upstream? Sewer lines, septic systems, livestock, wildlife and birds are all on the list in an investigation like this one.
This water has a record
Bacteria problems at the mouth of Soquel Creek are not new. Santa Cruz County Environmental Health keeps a list of ten creeks and lagoons that are permanently posted because of impaired water quality, and the Soquel Creek mouth at Capitola Beach is on it. The same county page, updated November 10, shows advisories based on November 9 testing for Capitola Beach at Soquel Creek, Soquel Creek Lagoon, and Capitola Beach at the Jetty. In 2021, the nonprofit Heal the Bay gave Capitola Beach an F and ranked it the third most polluted beach in California; the city’s public works director at the time pointed to poor circulation and animal pollution in Soquel Creek.
A posted sign and a closed beach are different things. Routine beach monitoring counts indicator bacteria. It tells you that fecal contamination is present. It does not tell you whether E. coli O157 is in the water. CDC made the point thirty years ago, writing that standard fecal coliform tests are insensitive to low concentrations of pathogens and that the infectious dose of E. coli O157:H7 is low. A child does not have to swallow much.
We have seen this before
Sycamore Pool, Chico, California, 2025. Children were hospitalized with E. coli O157:H7 after swimming and wading at Sycamore Pool and the Five-Mile Recreation Area, both on Big Chico Creek in Bidwell Park. Butte County issued a no-swim advisory for the creek, and CDC testing confirmed E. coli O157 at multiple locations along it, in samples that matched the strain that sickened the children. CDC’s preliminary findings pointed to grazing animals or birds, not human waste. My firm represents four of those children, and their families are suing the City of Chico.
The lesson is the same. Recreational water outbreaks hit small children hardest, the environmental source is often never pinned down, and the water can stay unsafe long after the first illnesses are reported.
If your child was in the water at Capitola
- Symptoms of E. coli O157 infection usually begin three to four days after exposure but can take up to ten days. Watch for stomach cramps, diarrhea that is often bloody, and vomiting.
- Call your child’s doctor, say that your child was at Capitola Beach or in Soquel Creek, and ask for a stool test for Shiga toxin-producing E. coli.
- CDC advises against antibiotics and antidiarrheal medicines for these infections because they may raise the risk of HUS. Ask the doctor before giving either.
- HUS typically shows up around a week after the diarrhea starts, sometimes as the diarrhea is improving. Less urination, unusual tiredness and pale skin are warning signs. Go to an emergency room.
- Keep a sick child out of daycare, pools and shared baths. This infection spreads easily from one child to another.
What should happen next
I have spent more than thirty years representing children with HUS. Most were sickened by food. Water gets less attention, but the bacteria are the same and so is the damage to a child’s kidneys.
Closing the beach was the right call. The next right call is information. The county should publish the hospitalization and HUS counts, the range of exposure dates, and the results from all four sampling sites as soon as they are back, including whether the laboratory looked for E. coli O157 and not only indicator bacteria. Clinicians across the Bay Area should be told to ask about Capitola when a child comes in with bloody diarrhea. And before the beach reopens, the public deserves to know what was found upstream and what was done about it.
I will update this post as the county releases more.
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