Drought or flood?  Can both be true at the same time?  Yes, and here’s what you need to know with Heal the Bay CEO Tracy Quinn in Part 2 of our 3-part series, Commit to Conservation.

RECENT DRAMATIC STORMS, known as atmospheric rivers, have caused major damage including flooding, mudslides, and sinkholes.  Up in the mountains, the California snowpack is 208% of average for this date and Mammoth Mountain is having its second snowiest January on record.  We are receiving record precipitation this year which can be good for our water supply but the drought is not over.  We know it is confusing, but it doesn’t have to be. Here are 3 things you need to know about water supply in CA.

Drought & Water Supply Recovery – 3 Limiting Factors

First, we started this year with a huge water deficit. About 40% of California’s water supply comes from groundwater and we have been over pumping our groundwater supplies for decades. When we don’t get enough surface water (i.e., rain and snowmelt that flows to our streams, rivers, and lakes), water users – mostly agriculture – use even more groundwater.  And because 19 of the 20 hottest years on record have occurred since 2001, and groundwater has been largely unregulated in California, our groundwater supplies have significantly declined. In fact, in the last 100 years, California drained enough fresh water to provide every person on Earth with a 30-year supply of drinking water. According to the USGS, it would take about 50 years to naturally recharge our groundwater supplies.

As Charming Evelyn, Sierra Club Water Chair, explains above, we’ve pumped so much groundwater that the land has sunk – in some places over 28 feet. It’s a phenomenon called “subsidence.”

Second, we can’t be certain that our immense snowpack will translate to full reservoirs that will carry us through the summer and fall when we need it most. California gets about 30% of our water from the snowpack in the Sierra Nevada mountains and our water system relies on the snow melting slowly over the spring and summer, filling reservoirs as water is discharged to meet the needs of our homes, businesses, and farms and leaving enough to get us through the fall until it rains and snows again. Unfortunately, climate change models have predicted, that we will now see early snowfall followed by unusually warm springs – in fact, this is what we saw last year. Between sublimation (snow evaporating off the mountain), overgrown forests with thirsty trees, and exceptionally dry soils, only a small fraction of our frozen reservoir (i.e., the snowpack in the Sierra Nevada and Colorado Rocky Mountains) even reached the lakes and reservoirs that supply our statewide water system. The same may happen this year.

While we watch California reservoirs rebound after 2 decades of drought, Lake Mead on the Colorado River, where SoCal gets about 30% of its water, remains critically low.  According to Brad Udall, a water and climate researcher at Colorado State University, we would need five or six years of 150% snowpack to refill Lake Mead and Lake Powell, the major reservoirs along the Colorado River.  Brad says we have to continue to plan for the worst year, and we agree! 

Third, we’re not capturing all this rain.  In the first three weeks of 2023, Los Angeles received over 8 inches of rain, which translates to about 568 billion gallons of water. Much of this water falls on impervious surfaces like roofs and streets, picks up pollutants from cars, pet waste, and trash and flows briskly to the nearest stormdrain and eventually out to the ocean. Recent investments helped us capture 33 billion gallons of this winter’s rainfall in Los Angeles County, but the majority of this precipitation is still flushing out to the ocean through stormdrains and rivers. Heal the Bay has been at the forefront, working to make sure we pursue new capture projects that offer multiple benefits through LA County’s Safe, Clean Water Program. 

👉 Get involved: Learn more about the stormwater projects featured in this post.

Managing Water Supply and Usage

Now is not the time to take our foot off the accelerator when it comes to saving water. Every drop of water we save now is a drop that will be available to us for essential uses during the dry times ahead. And remember, saving water saves energy – especially if you are reducing your use of hot water. So using less water helps save money on your utility bills and helps fight climate change!  Here are our top water saving tips you can do to create climate resilient communities. 

Source: EPA.gov

1. Install a FLUME device. Flume is a product that you can easily install on your water meter that sends water use data straight to your phone and can even alert you to a leak. According to the EPA, Americans lose 1 TRILLION gallons of water through household leaks each year. Right now, LADWP customers can get a FLUME device for just $24 (plus tax). Get personalized information on how you can save water right from an app on your phone! 

2. Transform your thirsty turf landscape into a beautiful native garden. Did you know that the number one irrigated crop in America is turf grass?  In Los Angeles, 50% to 70% of our drinking water (most of which we transport from hundreds of miles away) is used to irrigate landscapes, mostly grass that isn’t suitable for our climate. Right now LADWP customers can get up to $25,000 to remove the turf grass around their home. What can you do? Sign up for the rebate, remove your “non-functional turf” and replace it with a landscape that captures stormwater, maintains healthy soils, and is full of native plants to reduce your home’s irrigation demands:

A bioswale can capture water for home landscaping. Photo by Tracy Quinn/Heal the Bay

• • Connect your roof gutters to a rain barrel or bioswale and grade your landscape to capture the rain that falls on your property instead of letting it run into the street. This also prevents pollution like dirt and oils from cars and pet waste from reaching our rivers and beaches.
  • Maintain healthy soils because they retain more water. Healthy soils also capture and store carbon helping to mitigate the impacts of climate change.
  • Plant native plants, which, in addition to benefiting your water supply, can help maintain SoCal’s incredible biodiversity by providing food and shelter for birds, bees, and butterflies. This is especially important as our planet is currently facing a mass extinction event because human activity has reduced natural habitats. Find locally appropriate native plants here in Los Angeles at Theodore Payne Nursery.

💬 ASK THE EXPERTS: Should I replace my grass with artificial turf? Short answer – No!  Artificial turf is usually made from plastic, prevents insects from digging and aerating soils, pollutes the soils underneath it and the water that runs over it, and can contribute to extreme heat issues. For even more reasons to avoid it, check out this article. 

The Westwood Neighborhood Greenway is maintained by volunteers who restore native plant species near the Westwood/Rancho Park E Line station in support of local biodiversity. Photo by Bria Royal/Heal the Bay

3. Start a water-wise lifestyle trend in shared living spaces. Not a homeowner? Not a problem! Whether you’re renting an apartment or living in a student dorm, there are still plenty of daily actions we can all take to use less water. Check out more water savings tips for shared living spaces. And never underestimate the power of collective action. You can talk to your neighbors about the benefits of native landscaping, and collectively approach your landlord to request that they replace the turf in your complex. Suggestions from several tenants along with enticing rebates could sway your landlord and land you with some beautiful new outdoor vistas. 

💥#Commit2ConserveChallenge: Once you’re ready to take action, download the Dashboard.Earth app for step by step guides, links to rebated materials, and an easy-to-use checklist curated by Heal the Bay and Metropolitan Water District. With our ONE Water Pledge, you can begin tracking your progress in managing your home’s water supply and usage. Then, share your progress on social media to spread the word. 

ACTION LINK(S)

💥 GET THE APP – DASHBOARD.EARTH

HEAL THE BAY DROUGHT PORTAL

SUPPORT OUR WORK

Written by Tracy Quinn. Leading a dynamic team of scientists, policy experts, outreach specialists, educators, and advocates in pursuit of its clean water mission, Heal the Bay CEO Tracy Quinn is responsible for setting new science and policy goals, expanding Heal the Bay Aquarium as the premier marine science education destination in Southern California, and increasing community action throughout Greater LA. Tracy has dedicated her life to improving water quality in our rivers and ocean and ensuring safe, reliable, and affordable water for all Californians.

In Part 1 of our 3-part series, Commit to Conservation, Heal the Bay Water Quality Scientist Annelisa explains how smart water practices like recycling and conservation can help ensure the human right to water and the rights of nature, even as California becomes more arid.

MANY FOLKS LIVING IN CALIFORNIA are all too familiar with drought, because it seems like we are always in one. I was born and raised in California, so drought conditions have been a part of my life for as long as I can remember. I learned to turn off the faucet while I brushed my teeth, to limit my showers to 5 minutes or less, and to never let a drop of water go to waste. Many California residents have gotten really good at conserving water when drought is in the news, but we are not as familiar with the why behind it all, so those good water practices often fall away as soon as we get some rain. Unfortunately, one good rainstorm — or even a few — is not enough to end a drought, nor is it enough to prepare for the next one. Drought cycles have always occurred in California, and they continue to worsen as the climate crisis persists, due in part to a process called aridification that is making our dry years even drier. What we consider “normal” is constantly shifting, and then we still get periods of drought on top of that. In this blog, we will start to explore the why behind all of our conservation efforts, and what that means for Los Angeles’ water future.

A map of drought conditions in California, as of October 18, 2022. This map shows exceptional drought conditions (the highest level of drought severity) in the Central Valley. All of California is experiencing some level of drought conditions, and the majority of California is experiencing severe, extreme, or exceptional drought conditions. Source: U.S. Department of Agriculture

Water Management in Los Angeles

Where does LA Water come from? Source: Know the Flow / Heal the Bay

Roughly 80% of LA’s water is imported from hundreds of miles away in the Northern Sierra Nevada mountain range and San Francisco Bay Delta via the CA Aqueduct, the Eastern Sierra and Owens Valley via the LA Aqueduct, and the Rocky Mountains via the Colorado River Aqueduct. Most of this imported water starts as snowpack in the mountains. In fact, California’s water system was designed so that the snowpack would be our biggest reservoir, with the Sierra Nevada (which translates to snow-covered mountains in Spanish) alone holding 30% of California’s water. The snow would build up in the winter, and then slowly melt over the spring to fill reservoirs, recharge groundwater aquifers, and flow through our aqueducts so that we have water supply when we need it most in the summer and fall, at which time the cycle would start all over again.  

While we continue to take water from critical ecosystems like the Bay Delta, Owens Valley, and Colorado River Delta, which also need that snowmelt, we flush away the water that is available to us locally. Even in dry weather, 10 million gallons of water flow through Los Angeles’ stormdrain system and out to the ocean every single day just from nuisance flow (e.g., broken sprinklers, washing cars, hosing down driveways). And then, when we do get rain, that flow number surges with stormwater runoff, averaging 100 billion gallons of water wasted each year, when it could instead be captured and put to beneficial use. In addition, hundreds of millions of gallons of treated water is discharged from our wastewater treatment plants each day. Some of this treated water flows to the ocean through rivers and streams, and at least some of this flow may be needed to provide critical habitat for ecosystem health. But the treated water that is discharged directly to the ocean provides no beneficial purpose.  

To learn more about the LA Aqueduct and its effects on local peoples and ecosystems, watch The Aqueduct Between Us, directed by AnMarie Mendoza from the Gabrieleno-Tongva Tribe.  

Water Resources in Los Angeles Change with the Climate 

Climate change is happening now. We are seeing and feeling the effects every day with relentless record-breaking heat waves, floods, fire seasons, and droughts. We already experience what is called weather whiplash: dramatic swings between extreme weather patterns. Climate change continues to intensify these swings, so our dry years are hotter and drier, and our wet years are even more intense. More frequent dry years and hotter temperatures drive demand for water up (it takes more water to irrigate crops and landscapes), depleting water supply. Evaporation also takes its toll by pulling water from reservoirs and even taking moisture up from the land, which weakens ecosystem health and actually makes it harder for the land to absorb water when it does rain. Add longer and more intense droughts into that mix, and it is clear that California is becoming more dry (or arid) over time. This process is called aridification, and the trend will only increase as human-accelerated climate change continues. 

Low flow in the Colorado River, Source: Vicki Devine / Center for Biological Diversity

Critically low snowpack in California. Source: Stephanie Elam / CNN

Despite this dire news, it does still rain in Los Angeles. Looking ahead, we actually expect to get the same volume of rain locally on average as we have in recent history, but it will fall less often through heavier downpours. In addition, our dwindling snowpack reservoirs are melting faster each year. We do not currently have the infrastructure in place to capture that higher level of runoff from intense storms and fast snowmelt. This all means that more water will flow back to the ocean rather than being stored as snowpack, or infiltrated into groundwater reservoirs. Some people have suggested that more surface reservoirs are the answer, but they are excessively expensive. Much of the stored water would be lost to evaporation, and quite frankly, we have already dammed most of the rivers in CA. So we must rethink how we manage water to make the most of the resources we do have left.  

Water Management in Los Angeles Must Change, Too 

While we will continue to experience aridification and weather whiplash, we can still adapt to this hotter, drier future. To do this, conservation cannot only happen in response to a drought designation, but it must be a way of life. The good news is that there are local and sustainable solutions that individuals can do at home (indoor and outdoor) and systemic changes that we can push for together to be water wise.  

We can source enough water locally to support our water needs and drastically reduce our reliance on imported water. This can be done through improving water conservation/efficiency both regionally and at home, groundwater cleanup, stormwater capture, and  wastewater purification, without turning to expensive, energy intensive, and environmentally harmful practices such as ocean water desalination. Additionally, there is an opportunity to use nature-based solutions that capture and infiltrate water naturally to support overall ecosystem health, which, in turn, can help to mitigate the impacts of the climate crisis, among myriad additional benefits. In this way we can ensure the human right to water so people can stay safe and healthy, and respect the rights of nature by keeping our ecosystems thriving. 

Nature-based solutions for stormwater capture. Source: Heal the Bay

Do What You Can When You Can – Stay Informed 

Issues of California’s dwindling water supply, increased demand, and uncertain reliability can feel overwhelming. But we are not powerless in this climate crisis. We can all take the Climate Challenge to do what we can when we can. Start today and focus on “what we learn” — or whatever resonates with you. You can stay informed. Heal the Bay can help.  

Over the next six months, Heal the Bay will be exploring what it means to live in an arid state, and what climate change, drought, and aridification mean for our water future. We will share solutions and opportunities for advancing water efficiency to become more water wise at home and as a community through collective and regional action. Stay tuned for more content! In the meantime…

💥ASK THE EXPERTS: What do you want to know? Ask our staff scientists any questions you have about aridification, drought, and water conservation. Your answer may be featured in an upcoming blog post or video from Heal the Bay.

ACTION LINK(S)

ATTEND BLUE TABLE TALK ON DROUGHT

HEAL THE BAY DROUGHT PORTAL

SUPPORT OUR WORK

Written by Annelisa Moe. As a Heal the Bay Water Quality Scientist, Annelisa helps to keep L.A. water clean and safe by advocating for comprehensive and science-based water quality regulation and enforcement. Before joining the team at Heal the Bay, she worked with the Regional Water Quality Control Board in both the underground storage tank program and the surface water ambient monitoring program.