Showing posts with label Alameda dredging. Show all posts
Showing posts with label Alameda dredging. Show all posts

Sunday, May 17, 2015

Get Involved or Get Ready for Empty Skies




"More of us must become educated to the threat to wildlife imposed by ecological ignorance and indifference and poorly designed development and get actively involved--or..."



AT LEFT is a common tern looking for a meal in San Leandro Bay, where the marine ecosystem has entered a new era of catastrophic ecological threat due to global warming and other human activity.

Sediment buildup from Alameda's lagoons and dredging of the Oakland-Alameda Estuary have recently combined to shift tidal currents, drawing toxins from street run-off and lagoon chemicals into the feeding grounds of these magnificent aerial acrobats.

The human threat to marine wildlife here took a dramatic turn once before in the early 1900s, when dredging of a marsh turned the Alameda Penninsula into an island. The ecosystem had to adjust to the flooding and scavenging effect of powerful new tidal flows.

Further dredging of the newly-created Oakland-Alaemda Estuary made possible the Port of Oakland, a thriving seaport with hundreds of jobs, but a side-effect was a curse for the marine ecosystem of San Leandro Bay. New ship channel depths allowed larger ships to enter the Port but also increased the strength of tidal currents, drawing toxins from Alameda's lagoon effluent around the eastern tip of Alameda Island through the habitat of thousands of seabirds in San Leandro Bay.

Alameda's Tidal Curse is documented here on my blog: Alameda's Tidal Curse . The Curse is that whatever is carried down the Estuary from San Leandro Bay will be returned there and gets recycled repeatedly, day after day. The Tidal Curse is a prime suspect in the Seabird Massacre of 2015, where three hundred beautiful seabirds died and hundreds more were treated and released. The birds were caked in an oily goo that causes hypothermia a hideous death after hours of shivering from the cold.

The Massacre is still under investigation, but we don't have to wait. Action is already underway by the Regional Water Quality Control Board, who recently issued a new tentative ruling effectively declaring Zero Tolerance for anything but storm water to be released into storm sewers: Regional Water Quality Control Board Action .

This new ruling needs to be extended to include lagoons and all inland waterways feeding the San Francisco Bay. Call or write the Board with your comments. If you can--show up on June 12.

What will we learn from the 2015 Seabird Massacre? Will Alameda wake up? Will the City continue to use chemicals to control algae in their ancient finger lagoons? Will first responders become more responsive? Will the police show more interest in environmental cases? Will people use their cell phone cameras to record and report environmental threats? Will schools expand their ecological awareness curriculum?

Everyone enjoys seeing herons, terns, grebes, ducks, pelicans and egrets in our skies and waters. We share their living quarters. Urban development doesn't have to destroy wildlife. More of us must become educated to the threat to wildlife imposed by ecological ignorance and indifference and poorly designed development and get actively involved--or...

...one day the skies will be empty.

Get involved.

Here's a list of politicians, agencies and organizations you can contact: Who to Contact

Saturday, April 18, 2015

The Mystery Bird Goo Matches Drilling Mud

"Compare the grey on the duck's chest with the color of the drilling fluid..."



Strong indications have surfaced that a type of drilling mud is a likely source of the "Mystery Goo" that killed and injured hundreds of Bay Area seabirds this winter. All five of the goo's chemical components are present in the type of drilling mud described in detail in this patent application.*

Drilling fluid, or "mud," is a concoction of liquids and other materials used in drilling boreholes into the earth. The main function of the viscous liquid is to provide back pressure to prevent other fluids from coming up, to bring cuttings to the surface, and to lubricate, cool and clean the drill bit. Well-drilling involves drilling mud and waste mud must be disposed of. Here's a video illustrating how drilling mud works: Click here for Youtube clip on drilling mud.

Laboratory analysis of the Mystery Goo was reported by California Fish and Wildlife's Janna Rinderneck to contain five types of material: "silicone fluids, tung oils, resins or rosin oils, animal fats, and edible or inedible seed oils from plants." All five of these categories are present in the type of drilling compound described in detail in the above patent application.

One-hundred percent is a pretty strong indication that some form of drilling mud is repsonsible for the Goo.


How did drilling mud get into the waters that surround Alameda where the bird massacre occcured?

Last year, two large drilling contracts were let in Alameda--one by the Department of Public Works for replacement of a sewer line in a lagoon seawall** and the other by Alameda Municipal Power for running conduit across the Oakland-Alameda Estuary to Coast Guard Island. The CGI project began and ended before the October 12 sludge spill.

The project schedule for lagoon seawall sewer line replacement calls for contract award Sept 2, in plenty of time for a hemorrhage of drilling fluid into the lagoons to occur before October 12.


Dredge in Alameda lagoon

Alameda Public Works also conducted major lagoon dredging in the months prior to and including the first two weeks of October, 2014.




Lagoon,showing white and grey foam
















The photo at right reveals the apparent use of a white foaming agent and/or a surfactant to clarify lagoon water after dredging.

A well-drilling surfactant matching 80% (4 out of 5) of the Goo's chemical components shows up in a 2007 patent application.***






Duck saturated with "Mystery Goo"

Around the same time the grey and white foam was photographed floating in the lagoons, a plume of foamy grey sludge was reported in San Leandro Bay. The lagoon foam, the San Leandro Bay sludge and the Bird Goo all are grey.

Compare the grey on the duck's chest with the color of the drilling fluid in the top photo.


On October 12, 2014, the plume of sludge was seen entering San Leandro Bay from the direction of a lagoon portal just west of the Otis Street/Bay Farm Bridge. The plume was observed moving from there into and down the Oakland-Alameda Estuary toward San Francisco Bay on the outgoing tide. (See below for a map depicting tidal currents around Alameda.****) By mid-January, 2015, hundreds of seabirds caked with a grey goo of unknown origin were found near Alameda.

Alameda Public Works was in charge of lagoon dredging and water clarity and also of the seawall sewer project that entailed the use of a drilling fluid, possibly the type described in the patent application mentioned in the first paragraph of this page. Did the seawall drilling project expel a ton of drilling mud into a lagoon? Was that covered up by lagoon dredging and then cleaned up with a foaming agent and a surfactant?

Eye-witness observations, visual characteristics, time frames and the lab analysis of the Bird Goo all support a connection between the Goo and Alameda's lagoons and drilling projects.

Public Works has some questions to answer.



*See patent application for drilling fluid containing all five of the Bird Goo's ingredients (silicone, tung oil, seed oil, resin and animal fats): Click here for patent application for drilling fluid

**See bidding notice for drilling contracts: Click here for bidding notice

***A 2007 patent application for a surfactant used in well drilling reveals a combination of materials that include polymeric fluids (e.g., silicone) tung oils, fish oils (animal fat) and various seed oils: Click here to examine patent application for well-drilling surfactant.

****Here is a map and discussion of Alameda's tidal currents: Click here for explanation of tidal movements







Thursday, April 16, 2015

Stagnant Lagoons Cause Problems

"... a mixture of non-petroleum-based fats or oils. Non-petroleum oils include synthetic oils, such as silicone fluids, tung oils, and wood-derivative oils such as resin/rosin, animal fats and vegetable oils."


(Below is my opinion piece from the April 9 issue of The Alameda Sun points an accusing finger at Alameda's finger lagoons as the cause of the Bay Area's Seabird Massacre of 2015.)

Built more than fifty years ago, Alameda's Finger Lagoons that stretch from Court Street to Westline Drive have evoked mystic phrases like, "Venice of California." They border some of Alameda's nicest homes. On Google Maps, they look like a thin blue cutworm crawling across the city's main island.

But beauty and cach'e come at a price. The lagoons can be an attractive nuisance. Recently a man was seen dumping a tub of soiled cat litter over the railing of his second floor balcony.

The Finger Lagoons have aesthetic appeal, but for some they have become an ecological nightmare. Global warming has turned stagnant bodies of water into algae farms. Algae love still water, heat and bright sunlight. Last year was the hottest on record in Northern California, with a record number of sunny days as well.

By contrast, the tree-shaded lagoons on Bay Farm Island were designed with 1970s  technology. No fingers impede flow. An aeration system keeps the water oxygenated. The aging lagoons on Alameda Island are not aerated and have little shade. With no aeration system, algae growth in these older lagoons must be controlled with chemicals. It's these chemicals I have a problem with.

Over the past ten years, signs have been posted at Alameda's beaches warning not to go into the water. Some unknown hazard makes peoples' legs sting. Could the mysterious source of that sting be chemicals released from the lagoons?

Our beaches are covered with sand reclaimed from just offshore. Was that sand tested for toxins first? Are tiny children and  mothers safe in that sand?

Last October I observed someone in a Clean Lakes, Inc. truck taking a water sample from a lagoon. According to its web site, Clean Lakes is a global expert in "clarifying" inland waterways with toxic agricultural chemicals. A city engineer told me the company was essentially a lagoon janitorial service. Good thing I'm not that gullible.

The same engineer said the lagoon dredging solids were dumped "at Alameda Point on a toxic hot spot." Well, what about the liquids? You know the ones that went out that pipe into San Francisco Bay?

Last October I observed a plume of grey sludge and debris in San Leandro Bay that I suspect came from dredging the lagoons. This will be hard to prove, but Cal Fish and Wildlife said they would send someone out to take samples. I filed a complaint with the Regional Water Quality Control Board.

We will get to the bottom of this.

Maybe those 1950s-era lagoons should be filled in, made into a park.

#   #   #

Friday, April 10, 2015

How a Toxic Spill Can Be Invisible


Two different fire departments responded to my 911 call, and neither one saw anything requiring action. What was I to make of that? I thought I had done everything right in phoning 911, giving my cell number and hanging around a couple of blocks away. How could they not see what I had seen? I thought Alameda FD was a no-show, but learned later from the fire chief that wasn't the case. After dark, Oakland FD came, but all they had were flashlights. It would have taken a floodlight aimed down the estuary to make out what was left of the plume.

I owe an apology to Alameda's firefighters for doubting them. After meeting with Acting Chief Doug Long, I now have a clearer picture of the mechanics and limitations of their procedures and equipment.

Even under ideal conditions, there was almost a stealth nature to the material in the plume. The grey color of the material made it difficult to distinguish from the water.

Examine closely Image 1kc, at right, taken within Alameda's lagoon community sometime after the lagoons were dredged and before November 20, 2014, when the photo was posted on Facebook.

The white foam and adjacent grey floating material I believe to be the unknown surfactant mentioned above.

The grey areas dispersed among and bordering the white foam are what I believe was the plume I reported in my 911 calls.

Note how hard it is to make out the grey areas because they are so similar to the surrounding water. Note the low light and the textured nature of the water caused by wind or light rain. In such low/flat-light textured conditions the "grey goo" is almost indistinguishable from the water.

Why was I able to see the plume so clearly? Because the conditions at the time were ideal. It was bright and sunny and there was not even a breeze when I first noticed the plume of sludge. The water's surface was like a mirror except for the plume, which I only noticed because there was a texture to it and it was moving directly toward me at a snail's pace for over an hour before I got a good look at it. I had plenty of time to study it, to track it on foot and ponder the significance of what I was seeing. Even so, it was two months later before it sunk in that what I had seen was likely the toxic spill that killed three hundred seabirds.

The conditions for AFD were entirely different. During the two-and-a-half hours that passed since I first spotted the plume hundreds of yards away, the wind had come up, the tidal current had strengthened creating ripples, and the plume was in the shade that had crept out along the north shore of Alameda Island as the afternoon wore on.

Why didn't AFD call me? Because the driver didn't have my cell number. Either it wasn't passed to the driver or the truck wasn't equipped with a wireless monitor. For firefighters, time is critical. They rush to get out the door and on site as fast as possible. A piece of paper with a number on it doesn't always end up in the right hands. Arriving on site, the responders expected to "see something" that was almost impossible to see. And there was nobody around, or so they thought, to point anything out.

Meantime, another hour passed before Oakland FD was on site. By then the plume had broken up substantially and the conditions had worsened. The outgoing tide was ripping along, making the water choppy. They would had to have aimed a floodlight down the estuary to see what was left of plume, but by then the water was choppy. I was beginning to feel dumb for even calling them because there was so little evidence.

The next day I wanted to do something, but I was short of time. I had heard that the lagoons were being dredged, and it clicked in my head that the lagoon portal was just west of the Otis Street Bridge, where I'd first seen the plume. So I squandered what time I had on driving around looking for a dredging crew. One of the workers said the dredgings were carried away on a truck. Where, he didn't know.

So I dropped it. I figured the plume was from some other source, and what evidence there was was out floating in the Pacific Ocean by then. I wrote a rant on Facebook and dropped any notion of folowing up. I had plenty going on in my life to sweat over some junk that was out past the Golden Gate Bridge. Was I wrong!

As I said, only after I heard about the bird-killing grey good did I realize what an opportunity I had missed to prevent hundreds of beautiful seabirds from death and misery.

Again, my apologies to Alameda's firefighters. After I heard about the goo and that there was no record of my 911 calls, I assumed someone was covering up for someone at City Hall. I was angry about the birds. Angry that I might have been fooled. Angry that someone who didn't care about a few hundred birds was getting away with an environmental crime. Nobody thinks clearly when they're angry.

I'm sorry guys. It won't happen again.

There's still work to be done, though, to find out what happened and how to correct it. Maybe we can all learn from this. Next time, even if I have to run to my car and back for my phone and a coat. Even if I have to see a lady safely to her car and run back. I'm going to return to where I made the call so I can direct the responders right to the problem.

Thursday, April 9, 2015

From Dredging to Bird Goo: How Does It Happen?



I live on a seawater lagoon in Alameda and for some reason they are doing dredging this week all around the lagoon. Never seen boat traffic like this on the water here ever. Usually it is kayaks and paddle boats. So I shot this timelapse of the dredging. In case you have never seen it yourself. Choose to ignore if you want. I thought it was kinda cool. Posted to Facebook "Peeps" Group by Kevin Rockwell on Thursday, October 23, 2014


What could link the dredging of a lagoon to the San Francisco Bay Area's Mystery Bird Goo and Alameda's October 2014 Invisible Spill?

It is not the dredging itself but a side-effect--the post-dredging clarification of cloudy lagoon water with a foaming surfactant* which can create a plume of sludge that morphs over time from exposure to the sun and elements into bird-killing goo.

The mechanical disturbance of the lagoon floor necessitated by dredging clouds the water, referred to as turbidity.

Turbidity is unsightly and can be smelly, and it won't go away quickly. Not without help. The particles the turbid water contains can be toxic to marine life and damage habitat. Many municipal sewage plants routinely use surfactants for clarifying contaminated water, but their use is controversial and many surfactants are restricted throughout the world.

Evidence of the apparent use of a foaming surfactant appears in the photo at Image 1kc. The grey fringe around the white foam suggests a chemical reaction is occurring between the foam and the water's contaminants (undissolved and dissolved solids, in technical terms.) This photo was taken from within Alameda's finger lagoon community and posted on Facebook by Kevin Rockwell.

The photo shows many splotches of the same grey as the foam's fringe. It's the same color as the bird goo, and it floats like the bird goo. The reported chemical content of the goo ("silicone fluids, tung oils, resins or rosin oils, animal fats, and edible or inedible seed oils from plants") is not inconsistent with surfactant-laced post-dredging lagoon contaminants.**

Lagoon dredging stirs up decades-old deposits, throwing them into suspension. The surfactant "grabs" these particles, clarifying the water, but the residual composite "grey goo" must be accounted for.

I maintain that it is this mobile post-dredging composite of surfactant-contaminants that hitched a ride on the outgoing tide through the lagoon portal on October 12, 2014 and is the very material that I and my friend observed that afternoon.  I maintain that such a clarifying agent IS the source of the grey bird-killing goo.

SFGate.com reports that even California Department of Fish and Wildlife specialists aren't sure what, exactly, is in the "goo" that's harming the birds. International Bird Rescue describes the contaminant as a "viscous substance that destroys feather waterproofing, which can cause hypothermia and death;". This is precisely the effect a surfactant would have. (I have contacted International Bird Rescue about my surfactant theory.)



Look closely and note how hard the grey is to discern from surrounding water. This may be why neither the Alameda nor Oakland Fire Departments could act on my 911 calls. To the untrained eye, the goo can be practically invisible. 

The next step is proving it. This photo is the closest I have come to finding a "smoking gun" for the Mystery Goo and the October plume of sludge I reported.




*An acronyn for SURFace-ACTive AgeNT. See Wikipedia explanation of surfactants A surfactant can be lethal to marine flora and fauna, stripping away protective slime and body oils, exposing these plants and creatures to parasites, disease and noxious or poisonous elements such as herbicides, leading to an often hideous death.

**Reference SF Gate's article about Cal Fish & Wildlife's lab analysis of the goo: Scientists close in on IDing bird-killing mystery goo.