zentraler speicherkanal

20181112: Desk | Kitchen

I resumed my work for OSF today and Murphy's law ruled the morning. All of the most recent Premiere and After Effects files were not uploaded to the cloud, nor copied to my hard drive. To recreate all of the work necessary to be in a position to complete what I was intended to finish this week, would itself require a week of work. I searched everywhere three times before contacting my supervisor and inquiring about the possibility of him logging into my laptop and copying all the .aep and .pproj to box. Afterward, I changed my Okta password.

The time difference meant that the morning was spent researching exactly what was left outstanding and the evening, after I had received the files, were conforming the tasks to the current files. I worked 16 hours Monday.

Later in the evening Dr. Steven Weiss, a marine biologist from Uni Graz, met me at Preisterseminar to talk about the Murkraftwerk and the Zentraler Speicherkanal. Since my project was an extension of the Illinois River Project, I started by asking him about carp. Native to Central Europe, carp were part of the local sport fishing as well as holiday carp recipes. Weiss didn't have a recipe that he personally enjoyed; the recipes he did enjoy consisted of heavily disguising the flavor of the fish with something else. As bottom feeders that can thrive in toxic waters, the carp topic framed the following question about the condition of the Mur.

Historically river had been very polluted, even to the point that some people avoided it, or warned others to stay away from it. But an aggressive clean up had started in the 1980s, in part by ecological movements that have gotten hold after the postwar period when food, subsistence and class were at the forefront of sociopolitics in Austria. But the river was still heavily polluted, although huge improvements had been made.

There was already a chain of hydropower plants on the Mur, so the ecology had already been greatly altered. But the little life that persisted was going to be squeezed out. Each accumulation of life that formed behind the dam would be washed away each time the locks were opened. Steve’s concern was for life, biodiversity and he was open about his indifference to wastewater entering the river through overflowing sewer pipes; that was where the biggest fish were. When a river is polluted, it can be cleaned up and life will return, if the headwaters are still functional. But once a river is dammed, its amputated until that structure is removed.

In the minds of most Austrians hydropower was considered a clean, renewable energy. Although late getting out the door, when the information about the Murkraftwerk was publicized it was sold as cleaning up the river. Weiss saw this as a deliberate misrepresentation, contesting that the amount of organic matter that would diverted from the Mur was less than 2% of what was already in the river when the waters were in Graz.

The term “water rich” doesn’t just describe having water as a natural resource. If that were the case, every coastal city would be water rich. When Austria is referred to as ‘water rich’ it more accurately describes the value that pure water has to the people but also the wealth that has been extracted from water ways, such as through hydropower. Weiss stated that hydropower has a long history in Austria: since the beginning of the 20th century, not a single year has passed without the construction of a hydropower plant. At one point most of the electrical power used in Austria came from hydropower. In 2018, it produced about 60% of the electricity consumed. And, as wealth grows in Austria, consumption is expected to grow.

In Steve’s opinion the biggest environmental problem in Graz was not the management of the Mur river, but he air quality. The fine particulate matter in the air collected in the city center with wind stagnating due to the surround hills. And as the city population grew due to Austria urbanization and immigration initiatives, traffic would increase and the condition would become worse. The fact that the Murkraftwerk felled thousands of trees pinpointed his opposition to the project.

The representation that Austria is green is, by Weiss’ metrics dishonest or at least misleading. The image was really about being tidy or clean, but not environmental. He noted a number of regressive practices that included very poor encouragement for organic farming from the central government, and outdated management techniques of fisheries and wildlife, and a general disregard for biodiversity. Local protections were flawed and companies held considerable influence over their regulations that should have governed them. The Murkraftwerk summarized these poorly order priorities.

Steve joined the protest by accident and was reticent to get involved in a small country in which everyone knew everyone. But he became one of the faces of the protest, due to his scientific background as a marine biologist. But when the trees were finally downed, and the Speicherkanal and hydropower plant moved forward, he was devastated. The city had been ripped apart, governmental coalitions broke up, people’s lives were smothered. He had to come to terms with the mantra of never giving up while being prepared to lose.

What was amazing about talking with Steve was that his perspective was at once informed both from the very local, the very specific case study, but also by the larger cycle. He thoughts flowed fluidly between the technologies that were yet to be adapted and the very old. He used the notion of the swamp as the core of medieval fear to demonstrate how our perceptions of nature and cities have changed. He framed the pursuit of modernity in terms of how Mur had been straightened, motivated by normalization property lines, but the example gave a visual reference to how this pursuit had played out: When a river is channelized, the riverbed deepens because the currents move more quickly, the water digs at the earth. The water table sinks. Erosion at banks occurs, sometimes destabilizing bridges and roads. The Banks towered over the surface of the Mur by at least four meters. But his general point was why should the city be concerned about a small improvement in the water quality of a polluted river if the entire ecosystem in the water would be destroyed?

20181114: Innere Stadt | Puchstraße

Martin arrived punctually, wearing lederhosen, a black suede sports jacket, fashionable pointed-toed leather shoes, and long, thick socks. I didn’t notice the entire outfit until he was behind the lens; my attention was on his frizzled white beard; each hair seemed to be dislodged, present only by a range of knots that kept it from falling to the floor. His spirit was a brisk as a walk over the hills to a neighbors house for dinner. He exudes positivity; he glowed. Romana arrived shortly after; reserved and concise, she counter-balanced Martin perfectly. I had positioned a light fixture comprised of the letters "over" next to the futon on which they sat.

The Zentraler Speicherkanal (ZSK) along with the powerplant and other secondary constructions are collectively part of what’s referred to as the Murkraftwerk. My operating knowledge of the ZSK was primarily taken from my discussion with Steven Weiss. Martin and Romana were selected by Eva as representatives of the "activist" side of the ZSK story. Steven too had worked with them, and I was cognizant that the project so far was being propelled into a domain of political utility. Whom I was supplied as interlocutors would invariably bend the project into a realm of instrumentality from which I’m characteristically opposed.

The questions that I formulated in advanced were: When did their participation begin? What's the issue for Rettet die Mur? What's the goal of Rettet die Mur? Talk about tiny particulate matter. How did you feel when the hydropower plant was finally pushed through? What are the primary urban ecological issues facing Graz? Does sewage leaking into the Mur bother them? Is conservation or remediation occurring in Graz? What is the relation between industry and environmentalism in Graz? I was prepared but too ambitious.

With these question at hand I simply asked: What was Rettet die Mur trying to save? That is, what is the Mur to them? A river? Water? An ecosystem? A location? An entity frozen in time?

Romana recounted the deal protesters made with the hydropower plant. The power plant would replace 1.5 trees for each felled tree. But there was disagreement between the protesters and the power plant company as to what constituted a tree. The final decision was only trees larger than a certain diameter would be counted and replaced; understandably, the protesters felt cheated. 20,000 trees were cut, but only 6,000 old trees were counted.

The other problem was where the new trees would be planted. In order to filter air particulates and fulfill some of the function of the felled trees, the new trees must be near to where the pollution occurs, or where the polluted air is being inhaled by people. Since the Mur runs through the city, the area where the original trees were was ideal, for want of change: central, accessible and useful. It's expected that the new trees will be planted at the periphery of the city where they would be less instrumental for cleaning air.

The importance of "cleaner" water, i.e. less untreated sewer and storm water entering the Mur was unimportant to them in light of the trade offs. To them, the fact that the Mur had quite high organic matter in the water upstream of Graz didn’t rationalize a program for improving water quality. Paper mills, industry, and sedimentation from other dams meant that the untreated sewage water contributed only 2-3% of the organic load of the water. Nor were they convinced that the European Water Directive encouraged Graz to improve the Mur. On this point, I wondered again what it was that was trying to be saved.

The hydropower plant would also change the run of the river, dam up the water 6 meters. The habitat of the huchen salmon would be impacted, or destroyed. A snake that is near extinction may be quelled. So while the profit of the energy would be private; the destruction would be collective. Because the introduction of a hydropower plant would make the current sewer overflows non-functional as they would be below the raised level of the water, a suspicion of dependency arose: was the hydropower solving a problem of the sewer by partially paying for the Speicherkanal, or was the Speicherkanal necessary to solve the problem caused by the hydropower plant? The total cost of the Speicherkanal was 160 million euro, half of which was paid by the hydropower plant and half was paid by tax dollars. So this logistical order of operations was congruent to the financial suspicion of dependency: were tax payers bailing out a corporation or was a corporation paying for civil infrastructure? 


Martin opposed “end of pipe” solutions for collecting and treating water and believed that the amount of water that was to be collected by the ZSK could be percolated around the city. Historically, this is true for much of the time, but centennial floods, including the 1860 flood that took lives and motivated the covering of the Graz rivers, contests his calculations. Essentially, Martin and Romana thought of rainwater as a resource, not a problem. And it’s hard to argue with his main critique of urban life: Cities operate on linear relations to energy, food, water, and people, taking it all in and spewing it out. In contrast to the cycles with which nature works, which are local, the city itself sounds like a bad citizen, a dated machine or an insatiable digestive tract. “The city is a parasite on the landscape,” Romana told us.

Collectively, the characteristic of the Murkraftwerk gave everyone something to which to be opposed; concomitantly the storage sewer became a target of the activists as well. In a divergent strategy of divide and conquer, the activists multiplied their opponents from one, the hydropower plant, to four: Holding Graz, which was the city-owned private company that manages waste and sewage, Technische Universität Graz, which designed the Speicherkanal, Verbund, the electrical company who will operate the hydropower plant, and the Mayor Siegfried Nagl, who supported the projects.

There were four big demonstration of the opposition to the power plant and the Speicherkanal, in which 2-4,000 people participated. A public surveyed was conducted and revealed that the majority of the signatories were not in favor of the power plant. People protested the tree cutting by climbing the trees, building tree houses and gathering support. The mental image of people in trees reminded me of 1980s protest in USA (was this when and where the expression 'tree hugger' was developed?). But the day after a special election in which the Green Party separated from the reigning party, the Social Democrats, and another party joined them, the trees were cut in a militant manner. The protests were over.

But there were severe legal hurdles that plagued both sides of the project. The water rights of the river exist in a problematic juridical gray zone, having been passed from days of monarchic oversight directly into private hands without a presumption of public good, public use, or public access. They are bought and sold by hydropower companies who can only compensate fishing clubs whose river will be forever changed. The fisherman have no legal standing. Another regulation requires that a hydropower plant make use of the entire breadth of the river, rather than just half of the river. The interface of what’s legal and what’s political meant that Rettet die Mur could not find a law office that would take their case in Graz, so the protesters went all the way to Vienna for legal aid. For the powerplant, the local laws being bent by the Mayor could be corrected by Austrian or EU regulators. The evacuation of the tree protesters was subsequently determined to have been illegal.

Amidst the ecological questions in which both Romana and Martin were experts, and under the banner against which they had fought the project, they returned again and again to the political element: suspected corruption and blatant undermining of democratic processes. Later I learned that Romana was in the midst of a legal battle that could have a toll on her personal finances.

The tree cutting made timber of the public trust. The city’s own future planning had not included a power plant and the plan had been believed by its citizens. The communication of the Murkraftwerk was tardy, and when information was finally released, it was perceived as propagandistic and one-sided. Indeed, even the exhibition and informational space in Holding Graz was opened to the public, my first observation was that there was no mention of anything detrimental to the environment, as if the entire project had existed without serious opposition. The news media – Kleine Zeitung – television and radio is suspected of being an extension of city hall, ruled by money and personal interests.

Although the hydropower plant is, as of 2019, almost finished and expected to open in the spring, and that the Speicherkanal is nearly completed, Romana and Martin do not believe the fight is over. They hope to win in court and force the hydropower plant to pay for the entire storage sewer, and/or get Mayor Nagel pushed out of office. Even such a partial victory would be a smoke signal against future endeavors and a pivot toward the green and blue future that Romana hope to see grow.


http://ec.europa.eu/environment/water/water-framework/index_en.html

Graz has the Stadtentwicklung-Konzept

https://www.graz.at/cms/ziel/7758015/DE

20181127: Technische Universitat | Zentraler Speicherkanal

Holding Graz and Technical University collaborate on developing technologies for urban management–functional systems of analysis, data and spending. The term that came up again and again when talking with experts from these institutions was "clean water.” What is “clean” exactly?

In contrast to the Dakota Access Pipeline, the Tar Sands, or even the EU's ITER energy project, Graz's contestation of the ZSK was uniquely Austrian. While North Americans militarize against protesters opposed to non-renewal, fossil fuel energy, or the French protest against nuclear energy, the ZSK is the center of three parties that all fight environmental improvement, although each party has a different notion of what that entails. The city, represented by Holding Graz, aims to reduce the untreated wastewater entering the Mur. Their position is water quality. The hydropower plant hopes to produce renewable energy for Graz. And the activists are concerned for the ecological well-being of the river, fish, snakes and the trees.

The perception of hydropower plant is duplicitous because many Grazers deduce their intentions as strictly monetary. The fact that the second largest political party in Graz has traditionally been the Communist party, exaggerates the opposition to financial interest over environmental and social benefit. Compounded with the political negation of surveys and grassroots activists who mobilized a referendum on the issue, the frustration of impunity adds insult to injury. But, as Steve Weiss stated, the general perception in Austria of hydropower is positive. Even on a global level, hydropower is considered renewable energy. At COP24, the EU lauded hydropower as a clean source of energy (the political point was that COP24 was in Poland where the right-wing government is supporting the use of coal).

Dr. Kainz, who was the department chair and now the rector of the Technische Universitat, was the Godfather of the ZSK, brokering the benefits between Verbund, which needed traction for their hydro power plant, and Holding Graz, which needed a sewer extension. Kainz had directed me to Gruber as a contact who would speak about the TU’s involvement and design of the ZSK project. Gruber's research began in 2002, when his team began studying the quantities of sewer overflow in the Graz catchment area. His research video has been used in educational settings for the last decades, and I recognized some of the footage from Werner Sprung's presentation.

It was 2pm and overcast; the late-November daylight was bluing. Günter took us to the ZSK construction site. I was hoping to enter the ZSK. We started on a bridge to nowhere, a blockaded extension that overhung the Mur by a few meters. In rainy times, rainwater enters the same drainage canals in the sewers as is used by wastewater from houses and buildings. Because the surface of the city is polluted with toxins, it’s necessary to treat it, especially after the first rain. But excesses of both greywater and rainwater spill out of the channels along the sewers and join the flow of the covered creeks and river, exiting to the Mur at an outpoint. The Zentraler Speicherkanal spans 3 kilometers and connects to exists sewer overflow points, effectively catching the wastewater before it enters the Mur and stores it in compartments that are separated by movable weirs. When the wastewater treatment plant is no longer at capacity, the weirs drop, causing a wave motion, which causes the wastewater to disturb the settled sediments on the floor of the storage canal and wash everything down to the treatment plant. Günter explained all of this from his perch on the bridge, which he explained was used for dumping snow into the Mur. From the bridge he pointed out R 05, the first wastewater outpoint that he studied back in 2002. (Why untreated snow was being dumped into the river, given the polluted surfaces from which it is plowed, while rainwater is diverted, mixed with stored and requiring more funding in the name of the ZSK was not specified.)

It's curious that all three groups of interviewees–the activists Regelsberg and Ulls, Sprung and Gruber–all foresaw and called for the integration of green and blue solutions, like roof gardens, bioswells, and tree planting. The difference was the scale of efficacy that each party claimed. The activists implied blue and green initiatives could have substituted the net effect of the ZSK. Sprung suggested it would be necessary in the future. Gruber stated that it depended on the profile of the city, but that pipes were almost always necessary to solve the problem of flooding and surface pollution run off.

We crossed the pedestrian bridge to see the movable weirs that were under construction. The hydropower plant would raise the height of the Mur by 6 meters at the dam. I asked how close to the underside of the bridge it would be, and guest a few meters; he confirmed my estimate, but I presumed it was a translation issue.