December 10, 2019 § Leave a comment
Enjoy this new video from a couple of intrepid folks who recently attempted to kayak the L.A. River… and didn’t get very far… but nonetheless made a fun video showing their experience. They put in near Griffith Park’s Bette Davis Picnic Area – at the edge of the city of Glendale’s Glendale Narrows River Walk and only got to the adjacent Griffith Park Ferraro soccer fields.
There are plenty of places to put in and kayak the L.A. River safely and enjoyably – see my 2008 account of my first kayak trip there: day1, day2 and day3. The Burbank and Glendale stretches do involve plenty of portaging (walking.) There are also various organized kayaking tours these days. One warning: the L.A. River can get very dangerous very quickly during rainy weather, just watch No Way Out. The best time to kayak is when it’s not raining.
September 5, 2018 § 4 Comments
I can’t stop looking at these old maps of the Los Angeles basin, from the late 1880s. Cartographic representation of the way water flowed over, under, and into the landscape approaches the expressiveness of art.
These maps depict a spectrum of conditions between dry and wet that included marshes, seeps, streams, seasonal and perennial wetlands, freshwater sloughs, arroyos, wet meadows, alkali meadows, vernal pools… Each of these hydrological conditions would have supported plants and animals uniquely suited to the resulting ecosystem.
I think of how every place in the basin interacted with water in its own particular way.
And yet these maps are only a snapshot in time. The amount of surface water in the landscape might vary according to the season, and if it was a particularly dry or wet year. In a dry year, a seep might stop flowing. After a string of wet years, it might create a small pond. During a particularly large storm, a river might shift and find a new bed.
In our current urban fabric, much of the land’s hydrodiversity has been reduced to only three basic conditions: Dry (developed) land, lakes (reservoirs or recreational use), or stream beds (linear channels fixed in place).
What kind of hydrodiversity might urban river and stream restorations seek to create?
February 23, 2018 § Leave a comment
The Celebratory (also, yes, the Nerdy): Water LA 2018 Report
WaterLA , a project spearheaded by the River Project, champions making watershed management local. Hyper local. Your front yard local. The team there combines community outreach with effective, tested permaculture and landscape design techniques to harvest and retain water in yards and street planting strips. Rain gardens, rain barrels, grey water systems and permeable paving are among the solutions used at multiple sites across LA’s Valley. WaterLA organizers locate community members ready to pitch in and engage in work parties, so that everyone’s working together – building community while building resilience.
This year’s WaterLA Annual Report, then, is a celebration of the gains to individuals, families and our water supply delivered through participation in the project. You see, all those small projects add up to groundwater enhancement, and reductions in peak runoff when it rains – dampening the effect of most floods. The Annual Report quantifies water savings and relates project costs to other, more costly, regional approaches currently in use. Native plant and permaculture folks may be excited to see the conversions of lawns to habitat and foodscapes, community-minded folks may find some inspiration in its projects, and fiscally-minded folks may be encouraged to see creative, affordable solutions to expensive regional problems. A worthy project that would benefit all if it could be applied on a larger scale.
February 21, 2018 § 3 Comments
Part 2 of books practical, lyrical and celebratory. Today’s offering:
The Lyrical: Tree
Tree’s author, Melina Sempill Watts, dedicated years to enhancing the Malibu Creek and Santa Monica Mountains watersheds through her work as a watershed coordinator at the Resource Conservation District there. She worked with stakeholders to support projects, obtain funding, and educate the public about protecting the treasured mountain resources that so much public money has preserved.
With the debut of her novel, Tree, Sempill Watts shows us just how deeply she treasures those resources as well. While a single California Live Oak tree is the story’s protagonist, the world of the watershed unfolds and adapts, it burns, floods, thrives, and reluctantly submits to asphalt and lawn. It is not only the history of our landscape – including our rivers and streams – but also of our interactions with it, and the hopes and heartbreaks that we imprint onto it. And as our shorter human lives intertwine with Tree’s arching narrative, our aspirations, our births and deaths fall into the rhythm of nature. The story of Tree is a story that includes us. « Read the rest of this entry »
February 19, 2018 § 9 Comments
Creekfreaks! If you, like me, have resolved to pull away a bit from the netflix-amazonprime-hulu bingefests that serve as a daily nonpharma escapist (are we really living these political times?) opiate, and if maybe you, like me, are rediscovering those magical things called books – then I have a few reads for you! They range from practical, to lyrical, to celebratory. Personally, I find them all inspirational. In today’s post, I give you –
The Practical: Restoring Neighborhood Streams; Planning, Design, and Construction
Restoring Neighborhood Streams; Planning, Design, and Construction (2016, Island Press), builds on author A.L. Riley’s decades of engagement and effort in the restoring and daylighting of streams in urban and suburban areas. This Creekfreak was especially influenced by Riley and her work. Her previous book, Restoring Streams in Cities, is well dog-eared in my library, and has been an important go-to reference for how to think about stream function and restoration design. This new book provides case studies that illuminate fundamental questions that should be the basis for planning and design of urban stream restoration:
- Is it physically feasible to restore?
- Is it financially feasible?
- Does the public support (I’d add: political will) exist to support land use changes to support a live river or stream?
June 30, 2017 § 1 Comment
February 2, 2017 § 4 Comments
In every bottle of water is a creek, and there is actually a good chance it may be a California creek, as the map in this link indicates: “Lots of your bottled water comes from drought zones.”
This is something I think about every day when I walk by the water dispenser at my office. I look at the snowy mountain top on the label, and mentally compare it to the actual Arrowhead landmark, in the foothills of the San Bernardino Mountains, which I drive by each week. This iconic landmark is made of coastal sage scrub plants: white sage, black sage, california buckwheat, and others (Meek, 2007). Ironically, what makes the arrow stand out from the surrounding chaparral is the grey foliage that advertises the ability of these plants to survive drought.
Our remaining native ecosystems hang on a very delicate balance, and surface water and groundwater play an important role in maintaining this balance. This is just one of the reasons I feel alarmed when I see the list of “mountain springs” listed on the side of Arrowhead bottles. Because I suspect the other places on this list do not look anything like the snow-covered mountain on that label!
Last Sunday, I went to a community hearing sponsored by The League of Women Voters and Save Our Forest Association to learn how Nestlé’s extraction of water from the San Bernardino National Forest impacts Strawberry Creek, its riparian ecosystems, and our local groundwater. Speakers addressed a packed house at the Senior Center in Twin Peaks.
Strawberry Creek is the creek associated with Arrowhead Springs, after which Arrowhead water is named. It is located in the foothills of the San Bernardino Mountains.
Over the last 68 years, Nestlé extracted an average of 62 million gallons per year from wells drilled into the upper watershed of Strawberry Creek. According to figures presented at the hearing, this is over 5% of the safe yield of the entire San Bernardino Basin, which supplies the cities of San Bernardino, Riverside, Redlands, and others. Even in the midst of a multi-year drought, in 2015, Nestlé extracted 36 million gallons.
Nestlé’s extraction of millions of gallons per year occurred even as residents and businesses were required to restrict their own water usage.
For this amount of water, the company paid only $524 each year. One speaker said this came out to $3.65 per acre-foot of water, which the company then sold for 100,000 times that amount.
36 million gallons extracted in 2015, in the midst of a multi-year drought, means that much water did not make it to the creek. This means all of the plants and animals that once lived in the creek are short that much water.
Loe made it clear that the “mountain springs” of Strawberry Creek are not artesian springs which leap out the ground. Rather, they are horizontal wells drilled over 500 feet deep, maximizing groundwater extraction in the creek’s upper watershed, before water even gets to the creek. The drill sites are so dry that no riparian vegetation appears in their vicinity.
Nestlé claims to only extract water that is in ‘excess’ of the Forest Service’s current and foreseeable needs.
Given the outsized importance of riparian habitats in contributing to local biodiversity and providing regional ecological connectivity, Loe asked, can one say there is excess water when a creek is close to its lowest flows on record? Species that depend on riparian habitat are at low population levels, and others historically associated with the San Bernardino Mountains, have disappeared. Loe believes Nestlé’s extraction of groundwater was a contributing factor in the disappearance of Santa Ana speckled dace, a native fish species, from the area after 2003.
In a statement by the Center for Biological Diversity, the Story of Stuff, and Courage Campaign Institute, Eddie Kurtz wrote, “The U.S. Forest Service has been enabling [Nestlé] to destroy delicate ecosystems in the San Bernardino National Forest for 27 years, and it has to stop. Our government won’t stand up to them, so we’re taking matters into our own hands.”
FOR MORE INFORMATION
The co-sponsors of Sunday’s hearing: League of Women Voters of the San Bernardino Area.
I always love the Desert Sun’s coverage of environmental issues: Bottling Water without Scrutiny.
Origin of the Arrowhead landmark near San Bernardino, California. California Geographical Society.
August 11, 2016 § Leave a comment
That L.A. River water isn’t pristine isn’t exactly news. But Heal the Bay’s report this week, with measurements from last summer showing high bacteria content in the river, caused a stir. So what’s going on? We’d like to provide another perspective to better complete the picture and focus the discussion.
With river-connected activities like kayaking, fishing, biking and horseback riding increasing since the EPA’s 2010 determination that the entire L.A. River is to be protected under the Clean Water Act, people have figuratively, and sometimes literally, jumped in. The State Water Resources Control Board and the City of Los Angeles have noted that the river’s water quality was acceptable for activities like kayaking but stopped shy of recommending activities like swimming.
Opening up public access didn’t immediately get us to the point that FoLAR’s Lewis MacAdams had hoped for as a milestone goal for the river: “…a swimmable river.” That’s OK. Since 2010, we’ve taken some large steps forward.
Since 2008 we estimate that we’ve put more than 5,000 Angelenos on the river in our kayaking programs, and there hasn’t been a single reported case that indicated the types of health risks mentioned in the report.
Heal the Bay has made it clear that they do not want to impede the river revitalization process. They emphasized that the report (available here) should not stop anyone from river recreation—only that people should have proper warnings and use common-sense safety procedures.
Unfortunately, following the report there was a great deal of misunderstanding in the general public. Angelenos are accustomed to swimming at Santa Monica Beach or Mother’s Beach in the marina, which regularly get very poor water quality ratings from Heal the Bay due to high bacteria content. The conditions are worse after rain because of urban runoff. We’re all somehow okay with that, as bathers or surfers may get an ear infection or some other ailment, but then surprised when those same problems show up in our hometown river.
We face a systemic water pollution problem in Los Angeles. « Read the rest of this entry »
July 27, 2016 § 5 Comments
In the very early days of agriculture in the Los Angeles basin, the seasonal flooding of the Los Angeles River was intimately connected with the possibility of agriculture. Farmers welcomed flood-deposited silt. It made stuff grow. The agriculture of then grew out of the river of then.
The agriculture of now also deserves to be discussed in the context of the LA River, though it may require some serious visionary thinking to draw out the possibilities of this connection. Some have suggested the idea of community gardens along the river. Maybe in the near future. But let’s not forget that in the river as it currently stands, there are already all sorts of useful or edible plants that grow profusely without labor, chemicals, or other inputs. What can we learn from those plants?
Last of all, how can we put together the past and present to envision ways in which sustainable local food production might intersect with the Los Angeles River of the future?
At L.A. River Expeditions‘ Sepulveda Basin tour this past Sunday, kayak guide Gary Golding talked about useful wild plants currently found along the LA river channel, such as cattails, castor bean, wild mustards… Some of these plants are exotics and some are natives. Some are edible, and others are used medicinally. But what they all have in common is that they grow profusely and unapologetically, without the help of chemicals, irrigation, or the human hand, in any place suitable to their needs. This includes right in the Los Angeles River channel, where they thrive beneath a lush canopy of native willows. So why not learn what they are and learn how to use them?
Gary talked a long time about cattails. Parts of the plant can be processed into flour. Other parts can be eaten like celery. The pollen can be used in several different ways, and is considered to have healthful properties. This is just a brief capsule of one of the many plants he talked about.
My own talk started with the agriculture of then. Believe it or not, in the early days of (European) settlement in the basin, the soil in many valley areas of Los Angeles used to retain enough moisture to allow for farming without irrigation— this is called dry farming. Ludwig Louis Salvator wrote in 1876 of the “tablelands” of Los Angeles, that properly prepared soil could produce “nine good annual harvests out of ten, without irrigation, of castor oil beans, Indian corn, barley, alfalfa, potatoes, and various kinds of vegetables.”
At that time, the LA Basin was only sparsely developed. In that big open basin, plant roots and plant litter facilitated the soaking of water into the ground. Imagine about 50% of all rainfall ending up stored in the ground (California Water & Land Use Partnership), moving slowly downward through soil with the help of gravity, where it eventually joins the water table. In those days, rain moving slowly underground would have eventually re-emerged into one of the many streams, marshes, ponds, or wetlands in the LA River basin.
Though flooding did occur during the rainy season, it was different from the sudden devastating flooding of the early-mid 1900s– the flood stories we often hear about tend to be mostly from this specific period in history. This pop mythology about the river focusses on the kind of flooding that worsened in severity after houses and roads had already replaced the vegetation that had helped the ground behave like a sponge; the kind of devastating flooding that eventually prompted the channelization of the river into a thick bed of concrete… That kind of destructive flooding was still unknown. In the earliest days, rather, flooding was to be respected, but it also included the happy possibility that the river would deposit rich silt over the land, sometimes in layers several feet deep. Farmers loved this silt. The oral histories collected by Reagan in 1914 include many in which farmers praise the flood-deposited silt.
It was not necessary to fertilize the land, as they are now doing. They raised 100 bushels of corn to the acre, but not now. In those days a crop of corn and California pumpkins were raised on the same land. Those pumpkins would grow so thick that it was difficult to walkaround and step between them, while it was an easy matter to go all over the place and never step on the ground, stepping on the pumpkins. The largest I ever saw weighed 214 pounds, and on our place we raised one that weighed 206 pounds. (Proctor, from Reagan)
These stories might sound fantastical, but in his book on the Los Angeles River, Blake Gumprecht credits river-deposited soils as the reason Los Angeles County was “the most productive agricultural county in the United States until the 1950s.”
Contrast that to our current situation (call it the well-drained city), where 61% of the non-mountainous portions of the city of Los Angeles is covered by impervious surfaces, the hard surfaces like paving and roofs that prevent water from soaking into the ground (McPherson et al, 2008). Water moves very quickly over those hard surfaces, and is funneled into an elaborate network of stormdrains that transports captured rainfall as efficiently as possible into the ocean, rather than allowing it to soak into the ground where it might be replenishing aquifers, streams, and rivers.
On undeveloped land (this depends on slope, soil, vegetation cover, and other factors), one might expect 10% of rainfall to become surface runoff. In urbanized areas, about 55% of rain falling on the ground can become runoff that ends up in storm drains (California Water & Land Use Partnership). It is ironic that the finely networked stormdrain system that culminates in the Los Angeles River flood control channel really functions to dispose of the water that otherwise would be creating our streams. (This is why any river restoration that focusses only on the main channel without touching the network of tributaries higher up in the watershed might look good, but is essentially an end-of-pipe solution– it will not have a large impact on the river’s hydrology– it will certainly not help the river capture more water.) With precipitation disposed of so efficiently, the landscape of the Los Angeles basin is now so well-drained that the idea of growing vegetable crops without artificial irrigation, even in the ‘table lands,’ might seem fantastical.
What about the agriculture of now? As I spoke, some kayakers pointed out a field of corn planted right in Sepulveda Basin, near our trip’s starting point.
I had to investigate. Rows of corn were planted neatly, but the stalks were wan and thin. The plants on the edge of the field were dried. Maybe irrigation had just recently ceased. I was surprised to see that the plant that gave the field a dark green color from a distance was actually a species that appeared to have volunteered. This plant, growing far more prolifically than the intended crop, appeared to be some sort of chenopod. « Read the rest of this entry »
Early Floods in Los Angeles: Interview 147, J. E. Proctor, Long Beach: It was not necessary to fertilize the land…
July 16, 2016 § 1 Comment
One of the best creek freak documents around is a series of interviews made by Los Angeles County Flood Control Engineer James Reagan, around 1914. The interviews give a vivid picture of the Los Angeles basin of more than 100 years ago. We will be posting other interviews from this document in the following months.
He has been in this section of the country for more than forty years, and has witnessed some big floods. They have never done the damage that the flood last winter did, for the reason that everything is different. In the early days, and up to within the last four years, the country was covered more or less with willows, brush fences, and in some places, lakes, marshes and other small growth. In those days the water would spread out all over the country, and the velocity was very much slower, it did no damage, and in many ways did good.
It was not necessary to fertilize the land, as they are now doing. They raised 100 bushels of corn to the acre, but not now. In those days a crop of corn and California pumpkins were raised on the same land. Those pumpkins would grow so thick that it was difficult to walkaround and step between them, while it was an easy matter to go all over the place and never step on the ground, stepping on the pumpkins. The largest I ever saw weighed 214 pounds, and on our place we raised one that weighed 206 pounds.
So in this way the floods did a great deal of good. Each flood left a deposit of silt on the land that made the rich yields of those days. I am afraid the people will miss those floods, although in the last flood the land was washed very badly. That washing comes from the land being cleared off and having a freer run than before. There were no railroad embankments in those days either to hold the water either, where it is now held up, and the volume contracted into a smaller space at the openings under the railroad. And too, a flood would break out and a strong current would cut across the country carrying things before it, and in the wake perhaps putting a channel that ruined the land. Therefore part of the flood carried the big amount of silt, but the deposits were left by the last part of the flood.
On our place we have no fear of the flood that first comes, that does no damage, but it is the tail end of the flood that causes the damage. A place is started below us, and should a flood come again as last winter it will probably cut back and ruin our place. As it is we could do nothing with it this year; we could not rent it for anything.
Many peculiar things were noted in the flood of last winter. We had a chicken yard about 50 feet square, made of woven wire chicken fencing. On the inside of this fence, when the flood had gone down we found a deposit of sand and silt inside the yard about three feet deep. And another at a lower corner of the fence, a single strange of barb wire about 100 feet long, got loose except at one end, where it was held. Along this single strand of barb wire as it lay down stream had gathered a sand bar just back of the wire, or just below it, about 18 inches high.
These two things show what small obstructions can do. It gives us an idea of how little it takes to gather the silt, to form an obstruction that will soon turn the stream in some other direction.
So for a protection to the land I believe that a mat of willow roots and boughs would be more effective than anything else outside of a solid concrete wall and flood conduit for the water to travel in.
A channel 500 or 600 feet wide would probably carry the flood of last winter, but some of the others I could not say. The only objection to a wide channel is that when the tail end of the flood is running off it is liable to start zigzagging across the channel and then it is liable to cut the embankment. As long as the channel is clear and straight and enough water to partially fill the channel, everything would go all right, but the small stream that will not fill the channel will do a great deal of damage.
It is easy to get the willows to grow, they will grow anyway. The best way is to get branches as long as possible, lay them with the buts upstream, and then partially cover the with sand. They should be placed at the bottom of the embankment in the river bed, and then they will get plenty of moisture.
Mere sand banks will not do. They will melt down like sugar. But something should be done, but not any great expensive works until they work out the most effective methods of handling the water. I have worked in water all my life, and have seen some funny capers by it….
The second half of the interview, perhaps to be transcribed at a later date, describes the different qualities of well water at different strata.