Two countries, one border and their shared pollution

Communities in South San Diego sue over sewage spills.

 

Volunteers cleaning up Tijuana’s garbage could be at risk of exposure to industrial waste pollutants.
Courtesy of Wildcoast

Last September, Paloma Aguirre spent the day collecting bits of trash and tires in the Tijuana River Valley, which straddles the U.S.-Mexico border south of San Diego. Wearing leather gloves and dust masks, Aguirre and a group of volunteers combed the dry waterways and pockets of dense willow bushes and tamarisk, searching for garbage from Tijuana that washed through the steel slats in the border wall. The border is a complicated and not always effective barrier: It makes it harder for people to move between Mexico and the U.S., but does very little to stop certain other things. For instance, air pollution from the maquiladoras, or factories, of Ciudad Juárez wafts across the border into El Paso, Texas, as it does between Nogales, Mexico, and Nogales, Arizona.

A day after the cleanup, Aguirre got sick. Her fever rose to 102 degrees, and her throat felt like it was on fire. Eventually, she checked herself into an urgent-care clinic, where doctors diagnosed her with viral pharyngitis, a throat infection sometimes caused by exposure to pollutants commonly found in industrial waste, including nitrogen oxides and boron oxide.

Paloma Aguirre at the Tijuana River Action Month cleanup. Wildcoast removed over 3,000 pounds of trash with over 150 volunteers. After the cleanup, Aguirre ended up in urgent care with symptoms of exposure to toxic industrial waste.
Courtesy of Paloma Aguirre
Aguirre, who is the director of coastal and marine initiatives for Wildcoast, an international marine and coastal conservation nonprofit, is not the only person to have gotten sick from the “undocumented” byproducts that routinely flow across the border. A few years ago, a Border Patrol agent training with the Navy SEALS contracted a flesh-eating bacteria and nearly lost his arm. Now the SEALS no longer train in the ocean south of Imperial Beach.

A few days after Aguirre fell sick, she learned that several others on the cleanup crew also came down with the same symptoms.

“Oh, this is not good,” she thought.

CROSS-BORDER WATER POLLUTION between Tijuana and South San Diego is not new, but in recent years, the problem has grown worse. The reasons are complicated: There is Tijuana’s topography, with its steep hillsides and canyons that drain towards the border; the factories that get away with illegal dumping; the city’s rapid population growth, aging wastewater infrastructure and inadequate garbage collection. In the U.S., funding cuts to the Environmental Protection Agency have prevented improvements to the Borderlands’ sewage system.

Drone footage from March 1, 2017 shows the sewage plume spreading across Imperial Beach.
Zach Wick/Youtube screen capture
Meanwhile, beaches near the border are routinely closed, surfers often get sick, and most of the garbage cleanup is done by volunteers instead of government agencies.

In February 2017, the situation took a sharp turn for the worse. A winter storm cracked sewer pipes and manhole covers in Tijuana, sending more than 200 million gallons of untreated sewage across the border, through the estuary and out to sea. The resulting toxic plume spread 16 miles north up the coast, all the way to Coronado.

Last March, Imperial Beach, Chula Vista and the Port of San Diego decided they’d had enough: They sued the federal government, arguing that its failure to do more to mitigate the cross-border sewage issues violated U.S. environmental laws. The San Diego chapter of the Surfrider Foundation, an environmental nonprofit, also sued — and this September, so did the state of California. These lawsuits target the U.S. section of the International Boundary and Water Commission, a bi-national agency established in 1944 and tasked with delineating the border, allocating water and resolving cross-border sanitation problems.

Over the years, both countries have signed numerous agreements to facilitate collaboration, but the solutions have been slow to materialize. “They’ve been incredibly negligent,” said Aguirre.

When Paloma Aguirre learned she had been body-boarding in polluted water, she changed career paths to help protect the coastline.
Kevin Stuart

AGUIRRE MOVED TO IMPERIAL BEACH IN 2003, leaving from Mexico, where her parents were living, in 2003. She came for the waves. A body-boarder, Aguirre competed up and down the coast of California through the now-defunct United States Bodyboarding Association. One day, she was walking down the street and saw the executive director of Wildcoast, Serge Dedina, putting up signs that read “Clean Water Now.” “Don’t you know you’re surfing the most polluted beach in America?” Dedina said to her.

Aguirre was shocked: She had been surfing in polluted water for more than two years, without knowing it. The next day, she volunteered for Wildcoast and eventually switched career paths, from psychology to oceanography, hoping to help clean up the coastline she loved.

The cross-border sewage issue has long been a particularly vexing problem. Since 2008, Aguirre has pressed the International Boundary and Water Commission to do more, with little success. Her frustration is echoed by Christopher Harris, a recently retired Border Patrol agent with the San Diego Sector.

“We were always told to just suck it up,” he told me. A self-described “union guy,” Harris knew that when people start hearing about pollution from the Border Patrol, “you take it more seriously.”

Harris’ own breaking point came 10 years ago, when he arrested two men who were trying to sneak across the border in the Tijuana River Valley. The men were covered in oily purplish black mud, and when some of it got on Harris’ arms, it caused a strange rash.

“I got some of that Tijuana River muck on me,” Harris later told the doctor at the hospital. As soon as the doctor heard this, he pulled off his gloves, deposited them in a hazardous waste bin, and put on a more protective pair.

Tires and other bits of refuge travel across the U.S. border into the Tijuana River Valley.
Courtesy of Wildcoast

ON A HOT DAY IN EARLY OCTOBER, Aguirre pulled up to the Tijuana River’s now-dry riverbed on the U.S. side of the border, near the flood conveyance — the mile-long concrete channel built by the Boundary and Water Commission in 1978 that is the main target of the lawsuit. The commission designed it to funnel polluted floodwaters from Mexico into a capture zone so it could be treated before getting discharged off the South San Diego coastline. But the commission never built the additional water treatment infrastructure. Instead, the flood conveyance discharges the polluted water directly into the Tijuana River Estuary, violating the Clean Water Act.

“The U.S. has responsibility to actually capture and treat that water,” said Matt Edling, a lawyer for Imperial Beach, Chula Vista and the Port of San Diego in their lawsuit against the International Boundary and Water Commission.

A spokesperson with the U.S. section of the IBWC would not comment on the lawsuit, but noted in an email that the commission built and operates the International Wastewater Treatment Plant, which treats 25 million gallons of Mexican wastewater per day that would otherwise flow into the U.S.

BEFORE WE LEFT THE TIJUANA RIVER VALLEY, Aguirre pointed to a cluster of distant mobile trailers tucked up against the border: the contractors building new portions of President Donald Trump’s new border wall.

Behind her, the river channel disappeared into a riparian forest, where layers of trash are buried 10-feet-deep in the soil —mostly textiles and partly disintegrated plastic bags. Whatever doesn’t get trapped in the vegetation ends up in the Tijuana National Estuarine Reserve, a nursing habitat for leap sharks and a nesting ground for numerous bird species. This is the last coastal wetland in all of Southern California not bisected by a roadway and the only open land available for communities in South San Diego.

For Aguirre, the pollution issue is emblematic of something bigger: The two countries share a watershed, a coastline, and an entire ecosystem for migratory birds. “It’s funny,” Aguirre said. “Our economies are interdependent, our environment is interdependent and our public health is interdependent. We can’t avoid that, whether the (border) wall is 30 or 60 feet high.”

Sarah Tory is a correspondent for High Country News. She writes from Carbondale, Colorado. Email HCN at [email protected] or submit a letter to the editor

High Country News Classifieds
  • GUIDE TO WESTERN NATIONAL MONUMENTS
    NEW BOOK showcases 70 national monuments across the western United States. Use "Guide10" for 10% off at cmcpress.org
  • CARBON RANCH PLANNER
    The Quivira Coalition (www.quiviracoaltion.org) is a Santa Fe-based nonprofit that builds resilience on arid working lands. We foster ecological, economic, and social health through education,...
  • EDUCATION AND OUTREACH DIRECTOR
    Education and Outreach Program Director The Quivira Coalition (www.quiviracoaltion.org) is a Santa Fe-based nonprofit that builds resilience on arid working lands. We foster ecological, economic,...
  • WESTERN DIVISION DIRECTOR OF FIELD PROGRAMS
    DEADLINE TO APPLY: October 29, 2021 LOCATION FLEXIBLE (WESTERN HUB CITY PREFERRED) Overview The Land Trust Alliance is the voice of the land trust community....
  • COMMUNICATIONS AND OUTREACH ASSOCIATE
    Communications and Outreach Associate Position Opening: www.westernlaw.org/communications-outreach-associate ************************************************* Location: Western U.S., ideally in one of WELC's existing office locations (Santa Fe or Taos, NM, Helena,...
  • FREELANCE GRAPHIC DESIGNER & PROJECT COORDINATOR (REMOTE)
    High Country News (HCN) is seeking a contract Graphic Designer & Project Coordinator to design promotional, marketing and fund-raising assets and campaigns, and project-manage them...
  • FILM AND DIGITAL MEDIA: ASSISTANT PROFESSOR OF INDIGENOUS MEDIA, CULTURAL SOVEREIGNTY AND DECOLONIZATION (INITIAL REVIEW 12.1.21)
    Film and Digital Media: Assistant Professor of Indigenous Media, Cultural Sovereignty and Decolonization (Initial Review 12.1.21) Position overview Position title: Assistant Professor - tenure-track Salary...
  • REAL ESTATE SPECIALIST
    To learn more about this position and to apply please go to the following URL.
  • ENVIRONMENTAL GEOPHYSICS
    "More Data, Less Digging" Find groundwater and reduce excavation costs!
  • RARE CHIRICAHUA RIPARIAN LAND FOR SALE
    40 acres: 110 miles from Tucson: native trees, grasses: birder's heaven::dark sky/ borders state lease & National forest/5100 ft/13-16 per annum rain
  • CENTRAL PARK CULTURAL RESOURCE SPECIALIST
    Agency: Oregon Parks and Recreation Department Salary Range: $5,203 - $7,996 Position Title: Central Park Cultural Resource Specialist Do you have a background in Archaeology...
  • STAFF ATTORNEY
    Come live and work in one of the most beautiful places in the world! As our Staff Attorney you will play a key role in...
  • ARIZONA GRAZING CLEARINGHOUSE
    Dedicated to preventing the ecological degradation caused by livestock grazing on Arizona's public lands, and exposing the government subsidies that support it.
  • OPERATIONS MANAGER
    Position Summary: Friends of the Inyo (friendsoftheinyo.org) is seeking a new Operations Manager. The Operations Manager position is a full-time permanent position that reports directly...
  • WATER RIGHTS BUREAU CHIEF
    Water Rights Bureau Chief, State of Montana, DNRC, Water Resources Division, Helena, MT Working to support and implement the Department's mission to help ensure that...
  • EXECUTIVE DIRECTOR
    The Amargosa Conservancy (AC), a conservation nonprofit dedicated to standing up for water and biodiversity in the Death Valley region, seeks an executive director to...
  • DEVELOPMENT & OUTREACH ASSOCIATE
    Southeast Alaska Conservation Council is hiring! Who We Are: The Southeast Alaska Conservation Council (SEACC) is a small grassroots nonprofit based out of Juneau, Alaska,...
  • DESERT LANDS ORGANIZER
    Position Summary: Friends of the Inyo seeks a Desert Lands Organizer to assist with existing campaigns that will defend lands in the California desert, with...
  • IDAHO CONSERVATION LEAGUE
    Want to help preserve Idaho's land, water, and air for future generations? Idaho Conservation League currently has 3 open positions. We are looking for a...
  • LUNATEC ODOR-FREE DISHCLOTHS
    are a must try. They stay odor-free, dry fast, are durable and don't require machine washing. Try today.