We may not think about it every day, but we all live in a watershed. A watershed is the area of land that catches all the rain and snow, which collects into a marsh, stream, river, lake or groundwater. What we do on the land affects the quality of water for all communities living downstream. So what does this mean? It means our rivers and streams are the report card for a watershed’s health.
San Diego Coastkeeper has been monitoring local waterways since 2000. We assess watershed health on a monthly basis by measuring nutrients, bacteria, and basic water chemistry (temperature, pH, dissolved oxygen, etc). We monitor fixed sites in nine of San Diego County’s eleven coastal draining watersheds and use our data to assign water quality scores to each of our sites and annual watershed health reports. Most importantly (perhaps) is that we share these scores with the public by updating water quality information monthly on our website.
San Diego Coastkeeper is the only countywide, routine water quality monitoring program in San Diego, and we’re the largest volunteer-led effort of its kind in the state. We train over 100 volunteers each year to collect water quality data, and by analyzing the data that volunteers collect, we identify polluted waters and reduce sources of pollution.
We’ve learned a thing or two after 16 years of monitoring San Diego County’s water quality. These are our top five lessons learned.
- Urbanization is linked to poor water quality.
Want an example? See how fertilizers alone hurt our water.
- Nitrates are especially high in Escondido Creek.
At high levels, nitrates can be toxic to animals and humans. The best way you can prevent nitrate pollution in our waters is to limit the use of chemical fertilizers in your yard, or better yet rip up your grass and plant native plants that don’t need fertilizers.
- Bacteria levels are really high after a rain event.
Here are ten tactics to keep bacteria out of our waters by preventing polluted runoff.
- Drought affects water quality, not just quality.
Ambient measurements help us determine when poor water quality is harming the flora and fauna of our waters.
- We could not do this without our extraordinary volunteers.
Each month, 40 – 45 San Diego residents volunteer their Saturday to collect field samples and process them in the lab. During 2014 alone, 194 volunteers gave a total of 1,888 hours.
Susan Cobb, one of San Diego Coastkeeper’s most dedicated Water Quality Monitors, spends her weekends collecting water samples from across San Diego for scientific analysis. Passionate volunteers like Susan are the reason we can catch sewage spills early and find and fix the sources of pollution making San Diego less fishable and swimmable. We sat down with Susan to find out why she loves water and what drives her to protect it.
Why do you volunteer as a Coastkeeper Water Quality Monitor?
I began volunteering when I was a teenager. My mom recycled everything (newspapers, cans, glass) and I spent a few hours every weekend at the local recycling center. When I moved to San Diego County many years later, I started volunteering everywhere I could. Finally, after helping with a few beach cleanups in North County I heard about San Diego Coastkeeper. When I read about their Water Quality Monitoring program and commitment to the waterways in San Diego, I knew I wanted to be involved. That was May of 2015 and I’ve been hooked ever since.
Besides the obvious fact that our environment is worth saving, when I joined San Diego Coastkeeper I met a room full of people that felt the same as I did. My first day as a Water Quality Monitor, I was paired up with Adrian and Steve Kwik. As we drove up the coast to the Los Penasquitos sites, I knew that I wanted to make a commitment to the Water Quality Monitoring program. Those two had been doing it for 8-9 years and I was so impressed with their attitude and longevity.
I love the outdoors. My family and I hike and camp as often as possible. We enjoy the beach and my husband’s hobby is ocean fishing. So, I consider this a perfect fit. I can spend about 5 hours once a month and know that I’m having a positive impact on this big beautiful rock we live on.
Why is it important to return every month?
I see quite a few others that make this a regular part of their schedules each month so I know that I’m not alone. For me, it’s important to come every month because I can. I put it on my calendar, and when other things come up, I work around the water quality monitoring schedule. I am proud to say that I’ve only missed a few since starting in May of 2015.
One thing I love about coming every month is the friendships I’m forming. All of the volunteers care about the environment, but also many are in education (teachers and students) or their jobs are directly related to the environment. Also, it’s not surprising that since I am here on a regular basis, I feel confident in my knowledge of the proper procedures; which I know is important. It’s important for team members to participate each month so we can help train those who are either new or only help occasionally. A strong base of volunteers is essential to the success of the water quality monitoring process to ensure consistency in the data collection itself; whether it be location or the procedure of collecting the data.
What should everyone in San Diego know about this program?
People in San Diego should know that local and state agencies don’t have the funding and/or man-power to monitor our water ways as they should. The data we collect and analyze is used to keep our local industries in check. Since we collect in compliance with scientific procedures (clean gloves, dirty gloves, double bagging, keeping samples on ice, etc) and the lab follows set procedures to ensure accuracy, the data can then be used to support environmental laws if and when the need arises.
Our waterways are the foundation of our life in Southern California. The diversity of our plants and animals cannot survive without a healthy foundation and they deserve protection. Human activity in the outdoors must also be protected. We all should have fishable, swimmable, and drinkable waters. We should be able to enjoy seeing clean water and the wildlife it supports. Our environment is worth saving for ourselves and for our future.
How do you feel about the health of San Diego’s inland waters?
The health of San Diego’s inland waters fluctuates based on numerous factors. Water quality is not solely based on how industries treat our water, it also depends on how the general public, regular people like us, act in our daily life. Runoff from homes and roads, lawn fertilizers, oil from driveways, miscellaneous trash, and more can all have a negative impact on our watersheds. We all can make a difference. What we do matters when it comes to the health of our precious watersheds.
What do you do outside of Coastkeeper?
I’m a middle school science teacher. I encourage my students to participate in beach clean ups and any other causes they find worthy. I volunteer with Coastkeeper because I want them to know the importance of our waterways, and the environment in general. Leading by example is important.
What we all do can, and does, make a difference to others. We impact the world around us whether we realize it or not. I’ve shared with them some of the news that I learn from reading San Diego Coastkeeper’s newsletter. When the new law regarding microbeads passed, we did a mini-unit on plastics and their negative impact on the environment. One of the students this year mentioned how she thought that microbeads were part of the problem and that they should not be allowed. I let her know that the law had been passed and they were being phased out; which made her happy to say the least.
Outside of work, I love to be outdoors. My husband, daughter and I take a yearly camping trip, most often to Sequoia National Park. We have also been to Zion, Bryce Canyon, Arches, Canyonlands, Mesa Verde, Grand Canyon, Yosemite, and others. Locally, we enjoy our local coastline, Anza Borrego and Palomar Mountain. I’ve also done summer traveling with some work friends to Yellowstone and Glacier National Park.
And perhaps — your favorite San Diego beer and why?
My favorite beer is called Headbasher IPA. It’s made by a Carlsbad Brewery by the name of Arcana. We belong to Arcana’s ‘Mug-Club’ and I can’t say enough positive things about it. The owner and staff are amazing people and the two dart boards, along with the variety of food trucks, just can’t be beat. They have a nice selection of brews and I guarantee you won’t be disappointed. If you’re in North County and are thirsty for a great brew, stop into Arcana and tell them I sent you.
What is polluted runoff?
Pollutants like oil, grease, pesticides and litter build up on our streets and sidewalks each day. When it rains, and when sprinklers spill onto the sidewalk, water carries all of these pollutants through our storm drains directly into our rivers, bays and beaches without any treatment. Another large and related, and somewhat unquantifiable, problem is called industrial stormwater pollution. While this pollution reaches our waters in much the same way as everyday runoff, this type of pollution originates at the many industrial business sites across the county.
Why is polluted runoff the largest threat to our fishable, swimmable water?
Polluted runoff is the reason we can’t swim in the ocean for 72 hours after it rains, and it causes chemical build up in the fish we eat. But fighting polluted runoff isn’t as simple as stopping a single source of pollution. It’s a death by a thousand cuts, originating everywhere from car washes and sprinklers to streets, construction and industrial sites and farms. Imagine stopping the rain from pouring from the sky and running down the streets!
Dive into our polluted runoff series to explore the cutting edge of our work defending San Diego County’s water from urban and industrial runoff and learn how to make a difference yourself.
- Why We Spend Our Saturdays Collecting Water Samples
- Water Quality: What’s Drought Got to Do With It?
Stay tuned for more stories coming soon.
We have laws in place to limit industrial pollution and ensure that our water can support all of its uses, from swimming and fishing to hosting endangered wildlife. But without enforcement, these regulations cannot keep our water healthy. That’s where San Diego Coastkeeper comes in.
Urban runoff is the single biggest threat to water quality in San Diego. During the dry season, pollutants build up on hard surfaces like roads and parking lots. When it rains, stormwater pushes the accumulated pollutants into our storm drains. In San Diego, like most of California, our storm drains generally do not connect to wastewater treatment plants, so everything flows untreated into our waters. Pollutants created by industries, like metals and oils, are especially serious because they can be toxic in very low concentrations.
The Clean Water Act is a federal law that lays out the legal requirement for protecting, maintaining and improving the health of our water bodies. It is our most powerful tool for making sure San Diego’s water is healthy because it mandates that all states identify creeks, rivers and shorelines that are severely impaired by pollution.
Unfortunately, state and local regulators often don’t review water quality reports or conduct monitoring to make sure that industries are meeting Clean Water Act standards. San Diego Coastkeeper steps up to make sure that industries are doing everything they can to reduce pollution to our rivers and beaches. We review water quality reports, but that’s only the first step.
San Diego’s local government agencies have limited resources and they monitor infrequently, providing only a snapshot of water quality. To solve this problem, San Diego Coastkeeper also conducts our own monitoring to ensure compliance of clean water rules. We collect and analyze water samples from nine out of 11 watersheds in San Diego County every month. To ensure that our data meets the highest quality standards possible, Coastkeeper follows a rigorous quality assurance and control plan and standard operating procedures that have been approved by our state regulatory agencies. Sounds like a big job, right? That’s why we train over 100 volunteers each year and rely on them to help.
When we find polluting facilities, we use the Clean Water Act to bring them into compliance through enforcement actions. Our goal is to force industry operators to install and use best management practices that will meaningfully reduce pollutants in our waterways.
Want to see what kind of report card your local watershed is getting? Click here to explore a map of the most recent data we have for locations from Otay to Carlsbad.
Every year, the first major rain after the dry summer season gives us an opportunity to see the complicated problem of urban runoff and its impacts to our water quality. Urban runoff is water that flows over thehard scape surfaces we fill our cities with and drains directly into our waters. Stormwater, irrigation, and other water carry pollutants such as trash, oil, grease, pesticides, metals, bacteria and viruses, and toxic chemicals.
And it washes into our rivers, bays, lakes and ocean – untreated.
To unwind this major water quality issue in San Diego would require turning back the clock to a time before we developed the county and rethinking how we paved, connected and changed the natural landscape. Still, today, we can do things to capture or slow down runoff before it hits our water or to prevent pollutants in the first place. In thinking about our upcoming stormy season, we tapped the brains of our water quality sampling volunteers, who collect water samples from nine of our eleven watersheds, to produce this list of the top ten places to watch urban runoff. In no scientific way, we ordered it from the most basic visual to the most compelling. We target different pollutants, diverse geographic locations, a varierty of infrastructure impacts and human health and use impacts.
Take a look. What do you see?
10. 2306 S Coast Highway: Open channel dumping onto the beach
This popular North County surf spot features an open channel carrying urban runoff from the adjacent parking lot and highway straight onto the beach. This location highlights how stormwater washes trash and dissolved pollutants from our developed places onto our beaches.
9. 300 Forward Street in La Jolla/Bird Rock: Drain at the street’s end
This is the most straightforward illustration of a storm drain labeled “drains to the ocean,” where you can see the drain, the end of the street and the polluted water and its entrance to the Pacific. It simply illustrates the complicated infrastructure our region built that assumed pushing all water into our bays and ocean was the smartest way to keep our homes and businesses dry.
8. Tourmaline Surf Park: Channelized stormwater outlet meets popular surf spot
This Pacific Beach surf spot is world-renowned for its waves, thankfully not for its urban runoff pollution. Risking intestional illnesses of all sorts, surfers get barreled here when its raining, unaware that a paved stormwater channel leads direct to sandy beach and into the water. Polluted runoff in this channel dumps directly in the surf zone.
7. Coast Boulevard Park: Cement pipe at ocean’s edge
The Waterkeeper movement started decades ago because fisherman saw large industrial sites using massive pipes to discard pollution directly into the Hudson River. This location symbolizes San Diego’s version of that as a cement pipe carries polluted water from the storm drain straight to the ocean. With the Hudson’s pollution, fishermen could pinpoint a specific corporation responsible for dumping pollution into the water. In San Diego, it’s impossible to target one contributor to this issue because every person adds to the problem as rain water runs over our homes, yards, driveways, workplaces and more, until it carries accumalted toxins to this singular end point. In this spot, a large algae plume from the excess nutrients (commonly caused by fertilizer) grows along the rocks at the end of the drain. You can even see the algae mat in this photo to the right.
6. Cottonwood creek at Moonlight State Beach:Storm Drain opening
We’re particularly aware of this polluted runoff example because Moonlight Beach is a favorite among locals, families and surfers. It’s one of those rare beaches where a community member organizes regular cleanups to keep it trash free. Surfers flock here. Families play here. But, it’s also a prime location to see an open channel storm drain flow right to the sandy beach.
5. San Dieguito River Park Stormwater Treatment lagoon: Treatment wetland in action
Is it too late to reverse the effects of polluted runoff? Absolutely not, especially when we get creative.
We chose this location because it showcases a stormwater pipe that drops large amounts of urban runoff from the nearby development. The folks at San Dieguito Lagoon built a treatment wetland to clean the water before it gets to the actual lagoon. Here, you’ll see the pipe dumping water into the first pond. This first pond always has stagnant algae pond water, even when it’s not raining. But, the good news in this solution-oriented example, is that you can see the treatment ponds prevent the gross water from reaching the lagoon.
This illustrates what many people refer to as stormwater capture, and it also depicts the role that nature plays in helping humans handle polluted runoff.
In their natural state, our inland creeks slow polluted water and force it through nature’s filter–offering a true eco-cleanse that can remove a lot of urban runoff pollution from water before it reaches the ocean. Sandly, by channelizing many of San Diego County’s creeks, we dehabilitated nature’s role by replacing vegetation with paved concrete to quickly move water away from our developed areas into our bays and ocean.
4. Tecolote Shores, Mission Beach: Creek emptying into man-made bay
Mission Bay is gross–in this part of the bay. Here Tecolote Creek drains into Mission Bay, a tourism hot spot that we engineered when we rerouted the mouth of the San Diego River. Due to the high bacteria counts in this creek, this section of Mission Bay is often closed for swimming, even when it’s not raining. It’s particularly polluted here year round because this far-back section of Mission Bay does not have much current to mix the polluted water into the open ocean.
3. Dog Beach, Ocean Beach: The mouth of our region’s largest river
The polluted runoff in this iconic location begins collecting bacteria and toxins from as far inland as Julian–the eastern edges of this watershed. The amount and the intensity of polluted runoff flowing through the mouth of this river demonstrate the gravity of our top water quality problem. Here, you’re also likely to see a secondary issue in urban runoff–marine debris.
2. 3001 Harbor Drive: Trash
This bridge overlooks the outlet for Chollas Creek, one of San Diego County’s most polluted creeks. Flowing through the most densely populated urban areas in the county, Chollas Creek is wrought with trash, oil, grease, pesticides, metals, bacteria and viruses and toxic chemicals. What makes this secure the #2 spot on our list of ten is that you can see a trash boom designed to capture trash flowing from upstream into the bay. Particularly with the popularity of photos on the Internet, many people have seen images from around the globe featuring humans in boats surrounded by massive amounts of trash in the water. It’s easy to dismiss that in San Diego because we do have strong trash and recycling systems in place. But, if you find yourself here at the end of Chollas Creek, you may see that marine debris issues are much closer to home than they appear.
1. Dairy Mart Road: Binational polluted runoff
During the winter, the Tijuana River overruns the South Bay International Wastewater Treatment Plant in San Ysidro, California. It then runs through the Tijuana River Estuary, one of the largest remaining Southern California coastal wetland habitats. This area is as important stopover on the Pacific Flyway bird migratory route. Unfortunately, the river carries large amounts of raw sewage as well as trash and sediment straight through the estuary and onto the beaches near Imperial Beach. During the winter, the river flows close nearby beaches. This one location perfectly illustrates that urban runoff is not “one person’s problem” or even “one country’s problem.” It highlights trash management issues as well as chemical water quality issues. This location slots into #1 because of the severity of the polluted runoff, the amount of the water flowing in this spot and the complicated matter of finding solutions to polluted runoff that starts in the U.S., flows through Mexico and completes it journey back in America.
Did we miss a location that you think should earn a spot on our top ten list of places to experience and learn about polluted runoff issues? Please, share with us your ideas in the comments below.
The following was written by Coastkeeper’s Jo Brooks and Everett Delano of our board of directors in response to a February 23 U-T San Diego editorial that criticized stormwater runoff requirements. This is the full text of their response, a partial response was published in the March 15, 2014 U-T.
A recent U-T San Diego editorial complained about the “ridiculousness” of stormwater runoff requirements adopted last May by the San Diego Regional Water Quality Control Board. Alleging the rules would cost the city $4 billion over the next 17 years and cause a 1,000 percent increase in the (miniscule) stormwater portion of water bills, the U-T San Diego Editorial Board urged that somebody “needs to stop the madness.” While the editorial was filled with hyperbole and sought to entertain, particularly the line about having to put diapers on waterfowl, the problem of water pollution is no laughing matter.
A Region in Trouble
Our region’s waters are in bad shape. In 2013 alone, San Diego County had over 3,000 beach closure days. More than 160 water bodies in the county are listed as polluted and not meeting federal water quality standards for, among other things, bacteria, lead, nickel, pesticides, thallium and trash. An urban runoff report on the biological integrity of San Diego’s streams in 2011-2012 listed only 3% as in “very good” condition while 79% were listed as “poor” or “very poor.” San Diego Coastkeeper’s own monitoring in 2013 revealed “marginal” water quality for the Carlsbad, Sweetwater, Pueblo, and Otay watersheds, and “poor” water quality for the Tijuana watershed. San Diego’s waters, inextricably linked to our own health and to the health of our economy, need our protection and our action.
The editorial’s complaint that the standards would require the city to “scrub its urban runoff” is simply wrong. Yes, even under prior permits, washing a car in a driveway and allowing dirty wash water to escape to the street or a storm drain system is “strongly discouraged.” So are a host of other bad practices that flush water with chemicals and pollutants into storm drains, where it collects with other pollutants that feed into San Diego’s streams, beaches, lagoons, bays, and eventually the ocean. While there are no permit requirements to “scrub runoff,” there are appropriate requirements to adopt “maximum extent practicable” levels of protection of San Diego’s precious water bodies.
Fishable, Swimmable & Drinkable
As members of San Diego Coastkeeper’s board of directors, we take seriously the federal Clean Water Act’s mandates of fishable, swimmable and drinkable waters. As San Diegans, we should all ask ourselves – what is it worth to be able to eat fish from our waters, recreate in our bays and ocean, and drink water without fear of illness? There can be little doubt but that clean water is important to all. A 2004 study conducted by the University of Southern California and UCLA estimates that for every dollar spent on compliance with stormwater requirements, two to three dollars in benefits will result, including benefits to tourism, property values, public health, and public recreation.
A Questionable Price Tag
In reality, the $4 billion 17-year price tag listed in the editorial is suspect – like many things, there are often less expensive ways to address the same objective. Certainly the permit contains no requirement to spend any particular amount of money. But some of the very things the editorial complains about, like improving our irrigation systems and capturing stormwater for reuse, have tremendous potential to save both money and water in the long run, particularly when we are faced with a drought and the inevitably increasing costs associated with a reliable water supply for a growing population. Coastkeeper participates in the permit’s stakeholder process and supports constructive approaches to meeting permit requirements at reasonable cost.
It is also important to remember that visitors to San Diego spend nearly $8.4 billion annually, with an economic impact of over $18.7 billion generated for our regional economy. These visitors, just like residents and businesses, depend on healthy beaches and bays. Our healthy economy, like our public health, depends on healthy San Diego water bodies.
The U-T editorial correctly notes that our antiquated sewage-processing facility, the country’s last large municipal treatment plant not to meet basic secondary-treatment standards, requires significant upgrades. But we cannot afford to pollute our region’s water bodies either through inadequate sewage treatment or through polluted urban runoff.
The editorial derides the Regional Water Board’s permit as “environmental extremism.” In fact, it implements obligations set forth in the very mainstream 40-year-old federal Clean Water Act. We think of it more as an appropriate, measured step to address one of our region’s greatest assets. Our public health, our ecological health, and our financial well-being deserve nothing less.
Despite the stormy Friday morning weather, my water quality partner and I were excited to get to the bottom of a still unsolved mystery—the sources of urban runoff. Because rain is actually helpful in solving this mystery (due to the fact that you can often follow runoff back to the source), we welcomed the unusually intense weather.
When we arrived, the group divided the test area into mini-watersheds and we were assigned to collect water samples along the south bound of Chollas Creek. While the weather was helpful for data, it presented its own challenges. The collection efforts were marked by several strong gusts that pushed and pulled at me, at times nearly causing me to almost lose my balance. At another point I couldn’t see where I was going because my hair was flying in every direction, enveloping my entire face.
With dogged determination, we set out to get all the water samples we needed. Powering through the chaotic weather, climbing fences and walking through a windy swirl of muddy hills, steep pathways and graffiti-ed bridge underpasses, we were going to get this done!
Beside the waterway the evidence of some of the potential perpetrators of the pollution lay taunting us. Spray paint bottles were scattered lifelessly, as were many plastic cups and paper plates. What really captured my attention was a toilet seat cover lodged mid-creek. I still wonder how that ended up there—lots of explanations exist, but, in the end, there is no valid justification. It is amazing what discoveries can be found along the creek.
More challenges to our collection efforts continued to impact our efforts—it was very challenging to keep our paperwork dry! We had other difficulties when the readings on our instrument took longer than expected due to the many particles in the water. An eyeball analysis of the samples we collected made it clear that the water was a far cry from clean and crystal clear.
While the rain and everything its presence brought into Chollas Creek damped (pun intended) our efforts, this Southern Californian was happy to see at least a little of the much-needed rain we have craved for so long.
This whole experience was a wonderful adventure. Despite my thorough soaking and muddy boots, I felt accomplished. Accomplished enough to say that I will certainly do it again!
Are you interested in learning more about what happens to those samples and how they help us learn actionable information? Check out this blog post. Want to have your own happy adventure? Check out our volunteer opportunities.
While most of you were trying to stay dry and cozy during this past storm, several intrepid volunteers offered to brave the elements and help us figure out the source of urban runoff pollutants.
Urban runoff is the biggest threat to water quality in San Diego County, and we know that the problem gets worse when it rains. Rain washes pollutants from our urban environment and into our streams. What is unknown, however, is from where exactly these pollutants come. That sounds like a perfect job for San Diego Coastkeeper and its amazing volunteer base.
We divided up the Pueblo Watershed, the watershed for Chollas Creek, into sub-drainage basins. These are the colored areas displayed on the map. By analyzing the water coming out of these mini watersheds, we can hopefully determine the worst offenders for urban runoff. Once gathered, we will model this data to determine which of these basins has the highest pollutant concentrations, allowing us to better target our outreach and education efforts on the areas that disproportionately contribute to our urban runoff problem.
Sampling these areas was no small task, as we had to sample during the rain to catch the pollutants. We are deeply grateful to our amazing volunteers who ventured into the storm to conduct this sampling. They fought rain, wind, and traffic to help us collect this dataset. Hector Valtierra even sampled twice, spending seven soggy hours collecting data. Thank you, Hector!
It will take us a few weeks to analyze the data, but it looks interesting so far. There was a ton of bacteria in the water and nutrient levels look super high also. Trash was everywhere. We even unfortunately found a floating chihuahua. We’ll keep you updated as we work the data..
We thank the County Board of Supervisors and Union Bank for funding to support this project. In addition our thanks to Supervisor Greg Cox’s office for its involvement in getting this project started.
Interested in a volunteer’s perspective? Check out what Lynna Moy has to say about the day.
When I look at this photo, I see a wave I would normally kill to ride- with the exception of the surrounding wall of trash. I instantly visualize an ocean littered with garbage, paddling through oil and debris during my sunset surf. The amazing feeling I normally get just wouldn’t be the same if I had to dodge water bottles and was paranoid about swallowing the contaminated water.
Trash surrounds us everywhere we go on land. Between all the street litter, garbage days, overflowing trash cans and street sweeping, isn’t the water the one place we can get away from it all?
It is, but at a cost. According to the L.A. Times, San Diego spends close to $14 million annually on coastal cleanup efforts. Can’t you think of about 14 million ways this money could be used better? Yes, I want my waters to be clean so I can swim, surf and snorkel, but why do we have to spend so much money cleaning them up when we can simply prevent the problem in the first place?
One of the biggest inhibitors to keeping our waters clean is urban runoff. This is the water that runs through populated, man-made areas and picks up oil, grease, pesticides, metals and other toxic chemicals as it trickles directly into our water bodies. This not only makes our waters gross, but also harms the marine wildlife.
To do its part in cleaning up the community, San Diego Coastkeeper and Surfrider Foundation San Diego Chapter get together and host regular beach cleanups throughout the county. In 2012, 4,308 volunteers removed almost 8,000 pounds of trash from San Diego beaches. And still residents pay for regular trash control from the city. Houston, we have a serious problem.
As a self-proclaimed water-lover (as I imagine most San Diegans are), I make a point to be aware of how my actions on land effect the waters I treasure and I think others should do the same. To do your part in keeping our ocean, bay and streams pollution-free, please check out some pollution prevention tips. We may live mostly on land, but we need the sea. I can’t imagine a life of polluted waters and trash littered barrels, and I will do whatever it takes to keep that photo from becoming a reality in San Diego.
The autosampler is slowly, but surely, progressing. After securing the necessary money, and finding and purchasing parts, I have taken the first few steps towards completing the autosampler. To remind everyone, this autosampler will allow us to use the autosampler to monitor urban runoff during rains, as it happens (without having our volunteers stand in the rain for hours).
Currently, I am working on refining my home-built peristaltic pump. Peristaltic pumps use compression to push water. Skateboard wheels will compress a plastic tube to push water from the creek and into the sample bottles.
The pump frame has been built, and the skateboard wheels have been installed. The wheels, along with some tubing, will be doing the heavy lifting of the water. Once the pump is finished, and pumping, the next step will be to set up the valve array, which will distribute the samples into their respective containers.
From here, I expect the pace to accelerate, as the pump will probably be the part that I need to fiddle with the most. After the valve array, the final step will involve powering and connecting all of the parts into a computer controlled system. I am planning on using two Arduino microprocessers working in conjunction as the brains of the system.
While working on the autosampler, I have learned a great deal about prototyping and design. In its current state, the autosampler is not much more than a prototype. I was surprised about all the fiddling and adjusting needs to happen in order to make this run perfectly. This project has been an enlightening experience: there are hundreds of things that will go wrong. But I will fix all of them.
Working on the autosampler in general, and the pump specifically, has given me the chance to explore new horizons. I have a project where I have creative freedom, will have an impact, and combines an appealing career path, robotics, and my work here at Coastkeeper. It’s a nice balance to my school work. I appreciate the hands on experience that I have gotten with engineering and design, something I probably would not have without Coastkeeper’s help.
The currently anticipated deployment date is in late August, early September. Ish. That said, when I was first talking about this project, I thought I could have it out by March. We’ll have to wait and see.