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Environment Report: San Diego Can’t Spend the $300 Million It Won to Fight Tijuana Sewage Border Spills

/in , , /by /Voice of San Diegoby MacKenzie Elmer

Even though the federal government gave San Diego $300 million to alleviate the decades-long problem of Tijuana sewage spilling over the U.S.-Mexico border, and even though everyone seems to generally agree it should be spent on a bigger border wastewater treatment plant, and even though all the necessary parties seem to be working harmoniously on the plan, the money can’t be spent.

That’s due to some sticky bureaucratic red tape: Congress needs to pass, and the president needs to sign legislation allowing the U.S. Environmental Protection Agency to give that $300 million check (secured under the U.S.-Mexico-Canada agreement) to the U.S. International Boundary and Water Commission.

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Research Seeks Resilience for Aquifers

/in , , /by /AgAlertby Bob Johnson

One day in early October, a group of University of California, Merced, students went to the campus Smart Farm, augurs in hand, to explore the soil for the best spots to locate moisture sensors. They were not looking in the root zone to monitor how much water is available but instead for areas lower in the soil to study how irrigation and stormwater can travel far enough beneath the plants to recharge the groundwater below.

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Ever Wonder Where Your Drinking Water Comes From? A Reader Asked and We Answer

/in , , /by /Los Angeles Timesby Rachel Schnalzer

Until the first half of the 20th century, some areas in Los Angeles County had very high groundwater and springs that residents could use as a water source, said Madelyn Glickfeld, co-director of the UCLA Water Resources Group.

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Poway Prepares to Overhaul Water System in Wake of 2019 Contamination Crisis

/in , , /by /10 News San Diegoby Jeff Lasky Mentioned: San Diego County Water Authority

Poway is getting close to beginning the long-anticipated overhaul of its water system, following a 2019 crisis when the city’s water supply was contaminated by stormwater.

“It’s the largest capital improvement program the City of Poway has ever undertaken,” Shadi Sami, a city engineer helping oversee the project, told ABC 10News.

Currently, Poway gets its water from one source. Untreated water comes in from the San Diego County Water Authority, gets stored in Lake Poway, then goes to Poway’s water treatment plant and is stored in a clear well, before being distributed to residents and businesses. Following a storm in 2019, a valve that should not have been open allowed contaminated water into that clear well. With no other source of water, residents were under a boil water order for several days.

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Stormwater Could Be a Large Source of Microplastics and Rubber Fragments to Waterways

/in , /by /PHYS.ORG

In cities, heavy rains wash away the gunk collecting on sidewalks and roads, picking up all kinds of debris. However, the amount of microplastic pollution swept away by this runoff is currently unknown. Now, researchers in ACS ES&T Water report that stormwater can be a large source of microplastics and rubber fragments to water bodies and, with a proof-of-concept experiment, show that a rain garden could keep these microscopic pieces out of a storm drain.

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Surfrider’s Annual Clean Water Report Highlights Infrastructure Needs and Toxin-Removing Landscapes

/in , , /by /The Beach Reporter by Laylan Connelly

Too often, ocean water is laced with sewage and pollutants, affecting how safe beaches are for swimming and surfing –  that’s the message of this year’s Clean Water Report released Tuesday, May 25, by the Surfrider Foundation.

“We believe the water should be clean, always. We should be able to do that in all but the most unusual circumstances,” San Clemente-based Surfrider Foundation CEO Chad Nelsen said. But instead, the report highlights inefficiencies in sewer infrastructure and a need to stop urban runoff before it reaches the coast, both main contributors to dirty water that plagues the country’s coastlines.

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Watershed areas such as the land around the El Capitan Reservoir was assessed in the 2020 Watershed Survey by the City of San Diego. Photo: City of San Diego

Watershed Survey Helps Maintain San Diego Regional Water Quality

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The City of San Diego Public Utilities Department conducts regular surveys of its watersheds to monitor and maintain high water quality within those watersheds.

The City recently released its 2020 Watershed Sanitary Survey. Conducted and issued every five years since 1996 as required by California law, the report identifies actual or potential causes of local source water contamination that might adversely affect the quality and treatability of City of San Diego water.

The updated information is used as a basis for future watershed management and planning efforts. City of San Diego tap water meets all state and federal drinking water health standards, the primary standards for treating and monitoring water.

“Development and other activities in our watersheds can have a profound influence on the quality of our water,” said Shauna Lorance, director of the City of San Diego Public Utilities Department. “The Watershed Sanitary Survey is important for identifying potential negative impacts and ways to better protect our watersheds.”

Watershed protection critical to safe, reliable water supply

Everything that is on the land, whether a natural feature or a human activity like grazing cattle at this area near the Sutherland Reservoir, is part of the watershed. Photo: City of San Diego

Everything that is on the land, whether a natural feature or a human activity like grazing cattle at this area near the Sutherland Reservoir, is part of the watershed. Photo: City of San Diego

A watershed is an area of land that drains water into a specific body of water. Everything that is on the land, whether a natural feature or a human activity, is part of the watershed. Many places San Diego County residents live, work, and play in are watershed areas.

There are 11 westward draining watersheds in San Diego County.  Six are within the City of San Diego: San Dieguito River, Los Peñasquitos, Mission Bay and La Jolla, San Diego Bay, San Diego River, and Tijuana River.

The City of San Diego’s nine water supply reservoirs have a combined capacity of over 550,000 acre-feet and more than 900 square miles of watershed lands tributary to these reservoirs. Local runoff from watersheds captured in City reservoirs accounted for about 11% of total drinking water production from 2015-2020.

Six of San Diego County's watershed regions lie within the City of San Diego boundaries. Map: City of San Diego

Six of San Diego County’s watershed regions lie within the City of San Diego boundaries. Map: City of San Diego

Reservoirs are critical components of the regional water supply system, as water is supplied to nearly two million people in the City of San Diego and neighboring communities. Protecting these water sources is vital to providing healthy and safe drinking water. The public can assist in preventing watershed damage through source reduction and preventing stormwater runoff.

The 2020 survey noted these changes since the 2015 Watershed Sanitary Survey:

  • Total area of residential and commercial development in the watersheds increased slightly by about 2%.
  • A total of 412 new construction permits were recorded for onsite wastewater treatment systems located within the watersheds.
  • The number of fires occurring in the watersheds increased by about 8%.
  • Leaking underground storage sites decreased by 53%.
  • Sanitary sewer overflows increased by 36%.

The survey offers recommendations including continuing and expanding public awareness programs to help protect watershed, and implementing projects and programs to improve land management and water quality of source waters. All recommendations will be used for future watershed management and planning efforts.

The full 2020 Watershed Sanitary Survey, as well as past surveys, is available on the City’s website.

Editors Note: The City of San Diego is one of the San Diego County Water Authority’s 24 member agencies working collaboratively with the Water Authority to increase the value, reliability, and safety of water for ratepayers in San Diego County.

San Diego’s Infrastructure Deficit Is Really a Stormwater Deficit

/in , , /by /Voice of San Diego by Andrew Keatts

The infrastructure deficit that has hung over San Diego politics for years without meaningful intervention is perhaps better understood as a stormwater deficit.

Eight years ago, Mayor Todd Gloria, then Council president, pledged to craft an infrastructure-focused ballot measure for the 2016 ballot, to address the city’s crumbling roads, sidewalks, pipes and drains. That never happened, and the problem has only gotten worse. But the city now appears to be serious about pursing a measure to fund a specific, and massive, piece of the city’s infrastructure failure: its stormwater system.

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First Rain of Season Unveils a New Pollution Problem: Masks and Gloves — Pandemic PPE

/in , , /by /San Francisco Chronicleby Kurtis Alexander

The Bay Area’s first rain of the season is washing away worries of wildfire and drought. But it’s also bringing a new concern: gobs of face masks flooding San Francisco Bay.

Early season storms typically sweep a slurry of debris from streets and sidewalks into rivers, creeks and bays. This year, the fall flush not only contains the usual gunk, waste experts say, but a whole lot of discarded PPE — or personal protective equipment, the detritus of the pandemic.

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State Shares Framework for New Surface Water Quality Protections

/in , , /by /Arizona Public Mediaby Ariana Brocious

The Arizona Department of Environmental Quality is beginning to draft a set of regulations to protect surface water following the Trump administration’s rollback of the Clean Water Act.

The changes that took effect in June significantly narrow the list of waters that receive federal protection from pollution and contaminants, known as “waters of the U.S.” or the acronym “WOTUS.” And that leaves a big regulatory gap in Arizona, which currently has no surface water protection program.

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