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While compost and mulch may seem interchangeable, they have distinctly different uses in your sustainable landscaping. Photo: Water Authority Compost vs. Mulch

Compost vs. Mulch: What’s the Difference?

Compost and mulch may seem like interchangeable terms for the same thing. But they are two different things with different uses in your landscaping. 

Compost is a soil amendment. It is made of organic matter such as food scraps, landscape debris, or livestock manure that have already been partially consumed and mostly decomposed by microorganism. You cannot tell the original source of compost. Good quality compost brings the helpful “OWL” formula of oxygen, water, and life together in one package. 

Mulch is a soil topping. Mulch can be either organic or inorganic material that covers soil. The original recycled debris source of mulch is often identifiable. Mulch can be made from organic sources (grass clippings, leaf and yard litter, shredded wood trimmings) or inorganic sources such as gravel or decomposed granite (sometimes called “DG” for short).  

The microbes in healthy, biologically diverse mulch will “knit” the organic material together, forming a thick blanket. This mulch cover protects the soil and plant roots from temperature swings, retains moisture by slowing down evaporation from the surface of the soil, and keeps weeds from sprouting by reducing sunlight penetration to the soil surface. 

How to Use Compost 

You can buy commercially produced compost, or you can make it at home. The compost-making process, or composting, involves creating the optimal conditions for the microbes to do their transformative work. 

When compost looks like soil, you can work it directly into the soil. When compost is more coarse or has visible bits of the original materials, the most likely it is used on top of the soil instead of as an incorporated soil amendment worked in. 

Compost works in several ways. The compost itself contains particles that improve soil structure. Next, as compost decomposes in soil, it encourages the formation of soil macroaggregates. These macroaggregates are composed of existing soil particles and decomposed organic matter, which combine to create a more stable and better-functioning soil structure. 

How to Use Mulch 

Mulch always stays on the surface of your soil. It is never worked in. Recycled organic material is the most effective type of mulch, because it builds soil structure over time and provides a durable, protective barrier. The smaller the debris pieces are and the more mixed the organic pieces are such as leaves with wood chips, the faster it decomposes. When building your soil, small mixed mulch is best. 

Composted materials, especially coarse composts such as decomposed granite, can also be used as mulch. Artificial and inorganic mulches (DG, gravel, rubber chips) are mainly decorative. They do not contribute to soil life or plant health. They are best used in limited applications, such as creating natural pathways.  

 

Maile Guerrero of La Mesa was honored for her photo of Sutherland Reservoir. Photo Contest

Regional Photo Contest Awards Top Prizes To Shots of Sunset Cliffs, Sutherland Reservoir

A beauty shot of an East County reservoir and a portrait of a young couple at Sunset Cliffs took the top prizes in the San Diego County Water Authority’s “Brought to You by Water” photo contest in honor of Water Awareness Month in May.

Dozens of photographers from across the San Diego region putting their focus on water as a subject put their skills to the test in the Water Authority’s annual photo competition, highlighting the importance of safe and reliable water supplies. The Water Authority received nearly 80 entries in the contest, which is part of the Water Authority’s new outreach and education program called Brought to You by Water. More than 2,700 votes in the form of follower ‘likes’ were cast on the Water Authority’s Instagram page @sdcwa

See the winning entries here.

  • First Place: "Sunset Cliffs" by Kris Dailey

  • Second Place: "Sutherland Reservoir" by Maile Guerrero

  • Third Place: Ed Henderson, Cedar Creek Falls

  • Fourth Place: David Norris, San Diego Zoo

  • Honorable Mention: Heidi Couture, South County Reservoir

Photos featured the best of San Diego County from ocean to desert, and a few places farther afield. Subjects included everything from flowers and waterfalls, to wildlife and children, as photographers used their images to describe ways in which water plays a vital role in their favorite activities and quality of life.

“This contest is a fun opportunity for our community to come together and reflect on the importance of this precious resource,” said Mark Muir, chair of the Water Authority’s Board of Directors. “It’s inspirational to see all the ways people interact with and value water.”

Kris Dailey of San Diego won the first grand prize, as selected by Instagram user likes. Her photo of a Sunset Cliffs sunset featured Kris with her husband in the contest’s most liked photo. Water plays a background role in Dailey’s image, accompanied by the caption: “Water is like my spouse, without it I can’t live.”

Maile Guerrero of La Mesa won second prize as selected by a panel of Water Authority judges based on its originality, composition and connection to the contest theme. Guerrero’s image of Sutherland Reservoir near Ramona was accompanied by the caption, “Fresh water reservoirs in the county are a vital resource for our drinking water infrastructure.”

The Water Authority also recognized Ed Henderson of San Diego as the third-place winner for a photo of Cedar Creek Falls, a popular backcountry hiking destination. Fourth place went to David Norris of San Diego for an underwater scene shot at the San Diego Zoo. Honorable mention went to Heidi Couture of Santee for an image of a rainbow over a South County reservoir.

Winners received prizes generously donated by SeaWorld San Diego, San Diego Zoo Global, Balboa Park Cultural Partnership, the USS Midway Museum and Water Authority Director Lois Fong-Sakai. In addition, eligible contestants received tickets to the San Diego County Fair or the Fleet Science Center in Balboa Park.

For more information on the Water Authority’s Brought to You by Water outreach and education program, go to B2UbyH2O.org. All contest entries can still be viewed and enjoyed at https://www.instagram.com/sdcwa/

 

Early outreach project at the Del Mar Fair in summer 1965, promoting 'pure Northern California water.'

1965: Outreach Efforts at the Del Mar Fair

In the summer of 1965, the San Diego County Water Authority held one of its first outreach events at the Del Mar Fair – long before it was called the San Diego County Fair and before the Water Authority had a formal public relations department. For the Fair’s summer run, a 2,500-gallon stainless steel tank trunk was hired to deliver ‘pure Northern California water’ to 30,000 fairgoers from June 25 to July 5, 1965. The event was designed to showcase State Water Project supplies which would eventually be delivered through the California Aqueduct. A new brochure was also developed and distributed to 7,000 people.

Use a soil probe to test how well irrigation dispenses into your landscape. Photo: Courtesy University of Florida/Creative Commons use soil probe

Take the Test: Use a Soil Probe

If you want to create a healthy, thriving landscape full of beautiful plants, you need to know how to use an important soil management tool: a soil probe. 

Irrigation is essential to keep your landscaping green and growing. But to do so, you need to know as much as possible about your soils. One way is to use the Jar Test.

You should also use a soil probe. A soil probe lets you determine a lot more information about the soils in your landscaping. It helps you learn whether your irrigation water is successfully reaching the roots of your plants, or even if it soaks in too deep past the reach of plant roots.  

Without a good picture of your soil profile, you can’t answer questions about effective irrigation. Variability across your landscape could result in different types of soils in different areas, or in soil layers extending different depths.  

A good soil probe will help you figure out when irrigation water has reached the right depth for landscaping plants. It is a simple process with the right tools. 

When your soil is moist, a soil probe should go into the ground easily. Your soil probe will stop when it hits hard, dry dirt and won’t go further.  

How Low Should Your Irrigation Go?  

If your probe stops, it could be hitting a rock, so you may want to reposition it a few inches away and try again. If you are confident you’ve just hit dry soil, put your fingers around the probe at the soil surface, and pull it out. Measure the depth in inches to learn how deep your irrigation penetrates the soil. 

To properly irrigate your plants, understand the depth of their roots. Trees send their roots much deeper into the soil than shrubs, and shrubs have deeper roots than bedding plants like annual and perennial flowers or vegetables.  

Most plants will do fine as long as the top foot of soil is filled with water when you irrigate. Shrubs should be irrigated to a depth of two feet, and trees irrigated to a depth of three feet.  

You can purchase a soil probe at any general hardware story or gardening center. A basic soil probe costs between $30 and $80, but there are high-tech probes costing up to $300.  

This article was inspired by the 71-page Sustainable Landscapes Program guidebook available at SustainableLandscapesSD.org. Hardcopies are available free of charge at the Water Authority’s headquarters, 4677 Overland Ave., Kearny Mesa. The Water Authority and its partners also offer other great resources for landscaping upgrades, including free WaterSmart classes at WaterSmartSD.org.   

 

 

  

Helix Water District Names Winner of 2018 WaterSmart Landscape Contest

Helix Water District has named Carey Hultgren and Paul Geldbach of La Mesa as the winner of its 2018 WaterSmart Landscape Contest, an annual competition that recognizes outstanding water-wise residential landscapes based on design and overall attractiveness, appropriate plant selection and maintenance, and irrigation methods.

This 1930s Spanish-style home on Dutton Lane sits on a 0.67-acre lot and now uses 40 percent less water than it consumed a few short years ago. Over the two-month billing period ending this April, this home used just 14 units of water. One unit is 748 gallons.

Hultgren and Geldbach purchased the property in 2012 and, at the time, the only landscaping was dead sod, dying trees and a swimming pool. Rather than trying to rehabilitate the thirsty lawn, Hultgren and Geldbach slowly transitioned their property into a colorful, complimentary, and climate-appropriate landscape.

Incredibly, the two completed the design, installation and maintenance of their Spanish oasis on their own. “Yes, it has taken us a long time! But I believe the extra time spent has been worth the money we’ve saved and the pride of ownership we gained in the process.

Free WaterSmart Landscape Makeover Program Jump Starts Winning Project

The new award-winning front yard landscaping. Photo: Courtesy Helix Water District

Hultgren attended the San Diego County Water Authority’s free WaterSmart Landscape Makeover Program in 2015 and within a few months they were ready to break ground. Since then, this do-it-yourself duo has completed a great amount of work.

“We’ve installed 26 water-wise trees and countless drought tolerant plants. We continue to refine and add to the landscape every spare moment we have,” said Hultgren.

The work first involved clearing the land with multiple truckloads of dead plant material and then rebuilding the sun-scorched soil. They hauled in over 40 yards of compost and mulch to provide the new plants with nutrients and help the soil retain moisture.

Next on the list was irrigation for the new plants. Fortunately, the old lawn had an irrigation system. The couple retrofitted the system with efficient rotating nozzles and avoided the expense and labor of installing a completely new system.

Lastly, the couple carefully selected, arranged and installed the colorful, low-water-use plants. Now that the plants are established, Hultgren and Geldbach can turn the irrigation system off from late fall to spring with nothing but the occasional hand-watering in between.

“In fact, we deeply watered the Palo Verdes along the driveway the first year to get their root systems established and we haven’t watered them or the 20 octopus agaves…for about one and a half years! This spring, the trees have thanked us with a spectacular flower show.”

Efforts Pay Off  With Lowered Water Bill, More Colorful Landscape

The pool deck after the renovation.

Hultgren and Geldbach wrote in their contest application that, “It’s gratifying to see that our efforts to conserve water with careful plant selections, irrigation retrofitting and mulch maintenance has been paying off with a lower water bill than some of our neighbors, plus a more colorful landscape.”

As this year’s winners, Hultgren and Geldbach will receive the following prizes – a $250 gift card, a certificate, as well as a WaterSmart Landscape Contest winner’s sign to display in their yard.

Photos of Hultgren’s and Geldbach’s yard will appear in the winners section at landscapecontest.com, along with Helix Water District’s past winners and the winners from other local water agencies. Helix will also feature the couple and their landscape at hwd.com, the district’s own website.

2019 WaterSmart Landscape Contest Submission Information Now Available Online

The 2019 WaterSmart Landscape Contest will begin around January next year and the deadline for submissions will be in late April. Look for information about the 2019 contest at hwd.com, Facebook.com/HelixWater and Twitter at @HelixWater.

Helix Water District is responsible for providing a safe and reliable water supply for more than 275,000 people living in La Mesa, El Cajon, Lemon Grove and parts of Spring Valley, Lakeside and unincorporated San Diego County.

San Diego County Water Authority Board Chairman Mark Muir. Photo: Water Authority Historic water deal

Everything in San Diego County is Brought to You by Water

We’ve got a great thing going here in San Diego County, from the mountains to the coast and from the far northern reaches of our region to the international border.

Our economy is strong – one of the largest in the nation – with everything from global giants to startups trying to make a splash. We’ve got the most small farms of any county in the country and innovative industries that put us on the map.

And our quality of life is second to none. People come from all over the world to play here and stay here. They come for our attractions, our beer, our climate and everything else this great region offers.

That makes me proud to call this place home. And it reminds me that none of this would be possible without one key ingredient: a safe and reliable water supply.

Sufficient water supplies required for San Diego’s advanced economy

Think about it: We get just 10 inches of rain a year at Lindbergh Field. That’s not enough to sustain even a small fraction of what we do here day in and day out. In fact, the last time our natural water resources were sufficient for San Diego County was 1946.

At the time, San Diego was just at the start of its renaissance, first as a center of military operations, and later as one of the largest, most vibrant metropolitan areas in the nation.

Today, we boast an advanced economy that’s still a key military hub, and also a center of manufacturing, brewing, tourism, agriculture and so much else.

There are lots of reasons for our collective success, but none more foundational than steady and sufficient water supplies. Water is critical for developing new smart phone technology, next-generation medicines, high-tech military ships and world-class guitars and banjos. And the list goes on.

That’s where the San Diego County Water Authority and its 24 member agencies come in. Together, we secure, treat and deliver this vital resource 24/7/365.

We do it in pioneering and innovative ways, like new and enlarged reservoirs and the nation’s largest seawater desalination plant. We also work the front lines of water-use efficiency with rebates and resources to stretch every drop, because we appreciate the value of the region’s investments in safe and reliable water supplies.

So, every time you slice an avocado on your salad, use your smartphone for directions to the Gaslamp, watch your kid hit a home run on a Little League field, or stroll the tree-lined trails of Balboa Park, remember that this San Diego life is Brought to You by Water.

For more on the Water Authority’s Brought to You by Water program, go to https://b2ubyh2o.org/.

People walk along the top of the newly opened El Capitan Dam in 1935. Photo: San Diego County Historical Society

1935: El Capitan Dam Dedication

In its quest to supply water to its growing population, the City of San Diego claimed water rights to the San Diego River, and filed for a dam. A Mission Gorge site was first proposed on land owned by business leader Ed Fletcher. Another prominant business leader, John D. Spreckels lobbied for a dam farther north at El Capitan. After a lengthy civic debate, the city chose Spreckels’ project in 1924.

The tug of war over the project fueled a years-long political and legal battle over Native American pueblo rights to water, which affected the construction of the El Capitan Dam. The state Supreme Court eventually ruled in favor of the City of San diego in 1930, allowing dam construction to proceed. The dam opened to great fanfare and public walking tours in 1935.

Bobby Bonds Jr. on his great grandfather's tractor. Photo: Courtesy Bobby Bonds, Jr.

Backhoe the Perfect Ride for ‘Roadeo’ Champ

Bobby Bond Jr. was born to run a backhoe.

His father, Robert Sr., owns a backhoe dealership in Riverside County and put his son atop a backhoe as a toddler. At age 12, the younger Bond dug a septic tank and leach lines for a new home. He operated heavy equipment like a pro for years before getting his driver’s license.

“Don’t tell your mom,” laughs Bond Jr., recalling his dad’s advice.

With decades of experience – including the past five years at the San Diego County Water Authority – Bond Jr. took top honors in backhoe skills at the Maintenance Supervisors Association of San Diego Backhoe “Roadeo” Competition last summer. That earned him the right to represent San Diego County at the first American Public Works Association National Backhoe “Roadeo” in Orlando, Fla.

While Bond Jr. didn’t take home the gold at the national meet, he’s determined to return this summer.

Tuning Out Distractions Key To Winning Results

Held at the City of Carlsbad Maintenance Yard, the local equipment “Roadeo” event last summer involved a variety of unusual skill tests – wheelbarrow skills, sign assembly and backhoe operation.

Backhoe operators had to remove tennis balls from atop five safety cones in the backhoe swing area and place a pipe lift pin into holes on top of three safety cones. Bond Jr. won with a time of 2 minutes and 25 seconds.

“When I competed in the county competition, there were a few hundred people screaming at me, trying to distract me,” recalls Bond Jr. “I have four kids (ages 2, 4, 7, and 9), so I know how to tune out distractions.”

He said the ability to focus is key to good results – not only in competition but in his everyday role with the Water Authority overseeing crews who perform ongoing maintenance on roads and pipelines. It’s not fun and games when public safety is at stake.

“You must stay focused,” explained Bond Jr. “When you are running the backhoe, a lot of time you’re digging around live utilities … I’ve worked with some people who get frustrated easily, and it can cause you to pull a lever too fast.”

Running a Backhoe With Help From Nintendo

Modern backhoes use joystick controls instead of the foot controls common on older models for extending the backhoe’s boom in and out. While the modern backhoe is more precise, its controls are far more sensitive.

“You don’t feel the flow – the old ones would give you more pressure … You need to be smooth, you can’t be too fast or too jerky,” said Bond Jr.

In addition to decades of experience, Bond Jr. credits playing classic Nintendo video games with helping hone his hand-eye coordination.

While that experience didn’t add up to a win on the national level, Bond Jr. promises he’ll be back to defend his local title in May in hopes of earning another trip to the national competition in Kansas City, Mo., in late August.

 

MSA San Diego/APWA 2017 Equipment ‘Roadeo’ Full Results

Backhoe Competition

From left to right: APWA President Pedro Orso-Delgado, MSA President Rudy Cancio, Backhoe Champion Bobby Bond, MSA Vice President Tony Ulloa.

Wheel Barrow Course Skills Competition

1st Place: Ryan Kincade, Vallecitos Water District, 59 seconds
2nd Place: Russell Delmar, City of Carlsbad, 1 minute, 2 seconds
3rd Place: Margarito Corado Hidalgo, City of Chula Vista, 1 minute, 5 seconds

Sign Assembly Skills Competition

1st Place: (Tie) Michael Espudo, City of Carlsbad, and Alberto Gonzales, City of San Diego, 3 minutes, 9 seconds
2nd Place, Jerry Condron, City of Encinitas, 3 minutes, 21 seconds
3rd Place: Jesse Gonzales, City of Poway, 3 minutes, 23 seconds

Backhoe Pin Lift and Tennis Ball Skills Competition

1st Place: Bobby Bond Jr., San Diego County Water Authority, 2 minutes, 50 seconds
2nd Place: Matt Paxon, City of Encinitas, 3 minutes, 14 seconds
3rd Place: Matt Hollingsworth, City of Carlsbad, 3 minutes, 26 seconds

Overall “Roadeo” Competition Team Champions

1st Place: City of Carlsbad, 7 minutes 39 seconds
2nd Place: City of Encinitas, 7 minutes, 41 seconds
3rd Place: City of San Diego, 8 minutes, 3 seconds

Three things are required for optimal garden soil: OWL, or oxygen, water, and life. Photo: SDCWA

Gardening Like A Wise Old OWL

Your landscaping soil needs three things to feed the billions of microbes within it that can transform brick-hard, lifeless dirt into healthy, living soil: Oxygen, Water, and Life. Or in shorthand: OWL. 

Oxygen Lets Microbes Breathe Free 

Oxygen is needed by plant roots and soil organisms. Healthy soil has lots of tiny pockets of air. When soils are eroded, graded, or disturbed, their structure becomes compacted and hard. Compaction takes place when air and water bubbles are squeezed out of the soil. This kills the healthy microbes that replenish soil. Microbes can be killed by fertilizers, pesticides, or even heavy traffic from people or vehicles. 

Water For Your Microbes and Your Plants 

Microbes and plants need water to live. But too much water in your soil will displace oxygen by saturating the soil. This creates an anaerobic condition — and unhealthy microbes like bacteria, viruses, or parasites prefer anaerobic soil. If this condition persists, diseases may develop that endanger the health of your garden.   

Water is constantly moving through the soil. Water in the soil needs to be replenished as plants use it, as it evaporates from the soil surface, and as gravity pulls it down past the root zone of your plants. 

Bring Your Soil To Life  

Life in the soil includes all the bacteria, protozoa, nematodes, and fungi, the food they eat, the excretions they make, and the root systems they sustain. Living microbes are most quickly incorporated into your soil by adding high-quality compost.  

Plants attract microbes to their roots by feeding them carbon. Bacteria and fungi hold the soil together with microscopic glues and binders. The microbes consume organic matter, and then they are consumed by bigger creatures (worms, ants, slugs, centipedes, larvae, etc.), which are consumed in turn by creatures further up the food chain.  

Carbon and other nutrients cycle through these many life forms, creating healthy living soil, no matter what the soil type.  

Without these three elements, landscaping will not thrive. Organic matter, planning and some labor may be involved, but creating healthy soil using the OWL method will pay off in reduced maintenance, reduced inputs, reduced pollution on land and in our waterways, and the beauty of your thriving, healthy landscape.   

 Get Your Free Sustainable Lanscapes Program Guidebook

This article was inspired by the 71-page Sustainable Landscapes Program guidebook available at SustainableLandscapesSD.org. Hardcopies are available free of charge at the Water Authority’s headquarters, 4677 Overland Ave., Kearny Mesa. The Water Authority and its partners also offer other great resources for landscaping upgrades, including free WaterSmart classes at WaterSmartSD.org.   

 

 

  

Pipelines from Lake Hodges to the Olivenhain Reservoir helps generate electricity and gives the San Diego County Water Authority the ability to store 20,000 acre feet of emergency water supplies at Lake Hodges when the entire project is finished. Photo: SDCWA

2012: Lake Hodges Projects

While looking for ways to optimize the San Diego region’s water supply, San Diego County Water Authority engineers realized the potential to link the new Olivenhain Reservoir with the existing Lake Hodges just to its east. Not only would connecting the lakes by a pipeline facilitate movemnt of Lake Hodges’ water through the regional distribution system, but the Water Authority could capitalize on a rare opportunity to generate electricity.

The resulting pipeline rises 770 feet from Lake Hodges to the Olivenhain Reservoir. Moving water uphill requires two 28,000-horsepower pumps sitting 10 stories underground. When water flows downhill through the same pipeline, it generates up to 40 megawatts of electricity, enough for 28,000 homes. The Water Authority generates power during the day when energy prices are highest. It pumps water back uphill at night when energy costs are lower, creating revenue in the process.

Completed in 2012, the Lake Hodges Projects facilities allow water stored in lake Hodges to be delivered to the Twin Oaks Valley Water Treatment Plant prior to distribution to a majority of the county. This also gives the Water Authority the ability to store 20,000 acre-feet of emergency water at Lake Hodges when the entire Emergency Storage Project is finished.