Showing posts with label sanitation and wastewater. Show all posts
Showing posts with label sanitation and wastewater. Show all posts

Saturday, December 16, 2017

Infrastructure News

ENERGY

Missouri DOT Explores Solar Roads

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INFRASTRUCTURE

Maps of U.S. Infrastructure

The Washington Post has an online article that includes six informative maps about U.S. infrastructure. We encourage readers to check it out.


Missouri Gets F for Road Safety

That National Safety Council gave Missouri an F for road safety in its recent State of Safety: A State-by-State Report. Missouri’s low score is a result of the lack of laws relating to child passenger protection, texting while driving, seat belts and other transportation safety issues.

The state received and overall grade of F and was ranked lowest in the country (ranked 51st out of all states and the District of Columbia and ranked 49th for road safety) . In addition to road safety, the report considers safety issues in workplaces, homes and communities. You can find the Missouri scorecard here, as well as NSC’s scoring methodology.

Missouri Still Contender for Hyperloop

We previously noted that a Kansas City to St. Louis route was entered into a competition for Hyperloop One as it considers routes for a high-speed, tube magnetic levitation system. Apparently the 240 mile route across Missouri to connect the two Midwestern metropolises is still in the running. You can find more here.

Here is a link to another articles on a potential hyperloop in Missouri:

Missouri Transportation Improvements Stalled

The Columbia Missourian recent published an evaluation of Missouri Governor Eric Greitens’ campaign promise to improve state transportation infrastructure. Though the governor recommended supplemental appropriations for the transportation agency in his fiscal year 2018 budget, he has not proposed new or increased funding sources and generally has opposed increased taxes. Recent bills in the state General Assembly that would increase fuel taxes have also failed to pass.

Here are some additional articles on Missouri’s transportation funding.

Texting Lanes Coming to Miami

Apparently it is hard for some people to put down their cellular phones and pay attention to something else. The Miami Dade Express Authority has decided it is easier to change the roads than change behavior. It is planning to install to install bumpers on one lane of a highway and designate it for texting use.

Infrastructure Watch usually passes on thing like this without comment, but this seems like a bad idea. It may keep texters from wandering into other lanes, but it seem like they can still get into a lot of other troubles. In addition, it does nothing to address texting while driving in other lanes or on other roads. IW believes there is a role for technology in addressing this issue and that we have to be realistic about human behavior, but on the whole this does not seem like a very expensive way to address just a small part of the problem.

For all of you texters who won’t be driving Florida’s bumpered, baby lanes: STOP IT!

At any rate, you can read more about this here.

Incidentally, Florida got a F for road safety in the NSC State of Safety report, where it ranked 44th. It’s overall grade was a D, with a rank of 40th. You can see the Florida scorecard here.


Philadelphia Unearths Wooden Water Pipe

Recently a construction crew digging in Philadelphia came across segments of wooden water pipe that were probably installed in 1812. Fortunately, Philadelphia is not still using these pipes. When they were installed, they would have carried water from the Schuylkill River that was pumped up by steam engine.  You can read more about it here.

The Poop Engineer: Wastewater Blog

IW welcomes another engineering and environment blog to the web, The Poop Engineer. IW is not associated with The Poop Engineer, though the author worked at the same company for a while. Good luck, Andy.

Water Weirdness

Apparently some UK utilities uses dowsing rods to find water pipes.  IW does not recommend this, but it’s interesting that people cling to it. Here are links to articles on the practice.


Monday, November 14, 2016

Infrastructure News (Mostly Missouri)


Safety Valves Required on Gas Connections

The U.S. Department of Transportation, which governs gas pipeline safety through its Pipeline and Hazardous Materials Safety Administration, issue rules that require safety valves to be installed on all new or replacement gas service lines for apartments and small businesses. Excess flow valves automatically shut off the flow of gas when a line is ruptured, limiting the amount of gas that can escape, which will prevent or reduce the severity of fires.

Such valves have been required for new and replacement connections for single-family residences since 2009. The rule does not require existing connections to be retrofitted with the valve.

Tennessee Valley Authority Puts Unfinished Nuclear Plant on the Market

The Tennessee Valley Authority (TVA) is offering for sale its Bellefonte Nuclear Plant. TVA began construction of the plant, located near the northeast Alabama town of Hollywood, in the 1970s, but never completed it because regional power demand did not grow as anticipated.

TVA has set a minimum bid of $36.4 million for the plant and 1,600 acres of land along the Tennessee River. This is fraction of the $5 billion the authority has spent on the project. In addition to the unfinished nuclear reactors, the property includes power transmission lines, roads, and several buildings.

TVA cites economic development as a reason for the sale. It hopes industry will be attracted to the developed site and provide employment in the region.

Wind Farm to Start Operation in Missouri

Next Era Energy Resources is anticipating completing construction of a wind farm in rural DeKalb County, MO, in November. The facility will have 97 turbines and be capable of generating 200 MW. Kansas City Power and Light will purchase the energy. Find out more in this article from the St. Joseph News-Press.

ENGINEERING

Engineering Educators Elect First Black Woman President

The American Society for Engineering Education elected Bevlee Watfort as its president. She is the first black woman to hold the office. Her term will begin in June 2017. Watford is Associate Dean of Academic Affairs at Virginia Tech’s College of Engineering.


Missouri Testing Solar Sidewalk at Rest Stop

The Missouri Department of Transportation (MoDOT) announced it will install sidewalk made of solar panels at its Route 66 Welcome Center. The sidewalk will cover a 12-foot by 20-foot area at the rest stop on Interstate 44 near Conway, MO.

The panels will be supplied by Solar Roadways of Sandpoint, ID. The solar panels and electronics are sandwiched between to ½-inch thick layers of tempered glass. MoDOT will test the materials for durability under various weather conditions. It will also test the suitability of the panel’s built-in LEDs as substitutes for road striping.

MoDOT does not expect to sell power from solar projects. It envisions that solar roadways may generate enough power to supply rest areas. The power generated by this project will be directed to the welcome center building.


Bill to Change Missouri Water Commission Overcomes Veto

The Missouri General Assembly overturned a veto by Governor Jay Nixon of a bill that could change the composition of the Missouri Clean Water Commission. The bill would change the composition of the commission, allowing agriculture and mining interests to have a larger representation. The commission has authority over rulemaking under the state clean water law. You can read more about this here.

Oklahoma Shuts Down Waste Wells in Light of Earthquake Threat

The September 3rd earthquake on a newly discovered fault near Pawnee, Oklahoma, has prompted state and federal officials to halt injection of oil and gas wastewater into 67 wells in the area. There is a growing scientific consensus that wastewater injection has contributed to recent earthquakes in the Oklahoma.

Wastewater produced from oil and gas extraction is disposed of by injecting it deep into the ground. Reducing the amount of wastewater that can be injects also reduces the amount of oil or gas that can be collected. The wastewater cannot readily be disposed of by other means.


The magnitude 5.8 quake was felt in neighboring states (Facebook friends of this contributor reported feeling it in St. Louis and the Missouri Bootheel). The U.S. Geologic Survey reports that it was felt as far away as Nevada and Florida.

Saturday, April 23, 2016

Energy & Water Roundup


Consumer Group Opposes Missouri Energy Rate Reform Bill

The Midwest Energy Consumer Group (MECG) has come out in opposition of HB2689 (and its parallel in the Missouri Senate, SB1028), which would make significant changes to the way electric rates are regulated in the Missouri. The group claims that the bill would remove the voice of customers from the electric rate setting process and pave the way for regular, uncontested rate increases. The Office of Public Counsel, which officially represents customers in Missouri utility rate cases, expressed concern that the bill might limit the ability of the agency, as well as the state’s Public Service Commission, to review rate increases.

Related Posts

Senate Passes Energy Bill

The U.S. Senate passed its first major energy bill in a decade. The bill emphasizes development of alternative energy, natural gas, and lesser used sources such as geothermal and hydropower. It also focuses on energy efficiency and safety. The bill will need to be reconciled with the energy bill passed in the House of Representatives, which differs significantly, particularly in its approach to fossil fuels (coal, oil and natural gas). Senate leaders are confident they can work out differences with the House and develop a compromise bill that can pass both chambers latter this year.

What Is a Microgrid?

I’m seeing a lot about microgrids in utility publications and on the Internet. I thought it might be worthwhile to write something that could serve as an introduction to the subject for those who are unfamiliar with it, as well as educate myself in the process. I intend this to be the first in a series of short posts on the subject.

Let’s start with the basics. What is a microgrid?

A microgrid is a local energy grid that can disconnect from the larger grid and operate independently. It connects to the main grid at a location where the voltage of the two systems can be maintained at the same level. A switching system can manually or automatically switch the connection on or off.

Though the name “microgrid” implies something small, size is not a defining point. Microgrids are defined by
-local control, and
-functioning both connected to and disconnected from the main grid.

If you’re interested in finding out more about microgrids, here are some resources to get you started.


A Little Sewer History

The Guardian posted an article on the Great Stink of 1858 and how it prompted officials in London to improve the city’s overwhelmed system of handling storm water and wastewater. The Thames of that time was a stinking mess of sewage and a hazard to health. The sewer system devised by Joseph Bazalgette was a marvel of the age (and much of it is still in use) that moved wastewater discharges away from the populated areas around London.


You can read this very good article here. If it whets your appetite to find out more about this project, you may also want to read Dreams of Iron and Steel by Debora Cadbury. The Great Stink by Clare Clark is a fictional thriller set during this time that partly takes place in the changing sewers of London.

Sunday, April 17, 2016

Energy, Transportation & Water News


Bill Would Change Electric Ratemaking in Missouri

State Rep. Rocky Miller, who represents parts of Camden and Miller Counties near Osage Beach, introduced the 21st Century Grid Modernization and Security Act (HB2816). The bill would substantially change the state’s method of regulating electric utility rates. The method is modeled on processes in Illinois and would allow annual adjustments to electric rates.

Another portion of the bill substantially changes provision related to special electric rates for aluminum smelters. This is largely driven by Noranda, which operates smelter in New Madrid. It seems unlikely that lower or more flexible electric rates will save the company from plummeting aluminum prices.

With the exception of Noranda, large electricity users in Missouri have generally come out against the proposal. Some companies that have expressed opposition to the bill are Purina, Bayer, Ford, General Motors and Procter & Gamble. You can read more about this topic here.

Poop to Power Project Coming to North Carolina

Duke Energy has contracted with Carbon Cycle Energy for the construction and operation of a facility to process animal waste to produce methane gas for fuel. Waste will come from area pig and chicken farms. The gas will be piped to Duke plants as fuel in electric power generation.

North Carolina is the second largest pork producing state in the U.S. Duke is a major electric power producer, particularly in the Carolinas. Carbon Cycle is based in Colorado.


Barrel Bob Found

Barrel Bob, a character that serves as spokesman for worksite safety for the Missouri Department of Transportation (MoDOT), was found in Columbia on April 1 (no fooling) after he was stolen from his roadside station at highway construction site in Jefferson City on March 19.   The statue, constructed from used orange and reflective white barrels and cones, was previously set on fire by vandals at this location.

This statue was one of seven Barrel Bobs. Each of MoDOT’s districts has one. Bob was scheduled to make appearances at events to promote highway worksite safety beginning April 11, so the agency had resorted to building a new statue before Bob was found. You can find out more here, here and here.

Missourians Could Vote on Fuel Tax Increase

A bill (SB623) is making its way through the Missouri Senate that could increase the state fuel tax from 17 cents per gallon to 22.9 cents per gallon. The tax, if implemented, is expected to bring in $240 million annually. The bill would place a referendum on the November ballot, meaning it would have to be approved directly by voters. Before getting that far, it must complete its path through the General Assembly. The Senate is expected to pass the bill in its final vote in the first full week of April. Afterward it will be considered by the state House of Representatives, where it is not expected to be warmly received. You can read more about this here, here and here.

Significant funding for Missouri roads comes from the federal government (which has its own funding issues). MoDOT is preparing to use cash reserves to match federal grants for transportation projects (more here).

Name a Missouri Highway

An alternative to increased fuel taxes could be the auctioning of naming rights for highways. There is no estimate of how much revenue it could raise, but I’ll go out on a limb to say not enough to persuade the General Assembly to this bill. You can read the bill here. I have the impression the St. Louis Post-Dispatch reporter who covered this story must have chuckled as he typed.


Antibiotic Resistance Found in Bacteria Downstream of Wastewater Discharge

Researchers studying the biofilm in a Spanish river found antibiotic resistance genes. These genes occurred as far as 1 km (0.6 mile) downstream from the of a wastewater treatment plant. The genes provide resistance to some antibiotics commonly used in hospitals. You can find more here. In response to the issue of pharmaceutical pollution, some chemists are considering biodegradable drugs.

Sunday, March 13, 2016

Infrastructure Roundup


Missouri Highway Commission Selects New Chair

Gregg Smith has been appointed chairman of the Missouri Highways and Transportation Commission. Smith, who owns an automobile dealership in Clinton, MO, will chair the commission that oversees the state Department of Transportation. You can find more here.


Superbug Found in Sewage


The U.S. Environmental Protection Agency (EPA) found carbapenem-resistant enterobacteriaceae (CRE) in the sewage at a wastewater treatment plant in Los Angeles, CA. CRE is a lethal bacteria that is resistant to most antibiotics. It was the cause of recent outbreaks in Los Angeles-area hospitals. EPA did not test the discharge from the plant for the presence of CRE, but researchers indicate that the bacteria is not destroyed or removed by typical treatment and disinfection. You can find more about this issue here.

Sunday, January 10, 2016

Infrastructure & Environment Review


Ameren Missouri Efficiency Program Ends

Unable to resolve differences with state regulators, Ameren Missouri has let its energy efficiency rebate program lapse. Staff of the Missouri Public Service Commission and the state’s Office of Public Counsel believed that Ameren customer overpaid the cost of the program, and opposed a three-year extension. A proposal from Kansas City Power & Light has been approved, and it might serve as a model for a compromise between the state and Ameren. You can read more about this issue here.


Bans on Texting While Driving Introduced in Missouri

Bills that would prohibit or greatly restrict texting while driving have been prefiled in the Missouri General Assembly session that started January 6: HB1542 and SB821. Currently, texting while driving is banned for drivers younger than 21 and for drivers of commercial vehicles. You can find more about these bills here.

Bill Would Add Missouri Highway Commissioners

HB1446 would increase the size of the Missouri Highways and Transportation Commission from six members to eight. Each of the seven Transportation Department districts would be represented by a commissioner, and an eighth commissioner would be appointed without regard to district residence.

Missouri Legislators Propose Fuel Tax Increase

Two proposals have been floated by Missouri state legislators. One would increase the tax on gasoline by 1.5 cents and diesel by 3.5 cents. Another would increase all fuel taxes by 2 cents. You can find more about these proposals here or here.

As an alternative to the fuel tax, SB645 would redirect 3 percent of automobile sales tax revenues from state general revenue to the road fund.


Flooded Wastewater Plants Release Sewage in St. Louis Area

Wastewater treatment plants operated by the Metropolitan Sewer District of St. Louis have released millions of gallons of sewage into rivers. The Grand Glaize and Fenton plants were inundated by the recent floods in Missouri. The two plants, which combined treat and average of 20 million gallons of wastewater per day, discharge into the Meramec River.

White House Announces Water Strategy


The White House announced a strategy to the sustainability of U.S. water supplies and systems. The cynic in me suspects that these strategies, programs, and actions were things that were mostly in the works anyway, but someone cobbled them together into a seemingly unified program (you can can get the details here). Even so, we need to take a serious look at our water resources, policies and practices. Good policy that addresses today’s water situation is needed, but sustainable water for our nation will come when we have a culture that values water for the many roles it plays in our environment, industry, health, recreation and almost every other aspect of human life.

Sunday, November 15, 2015

Energy & Water Update


Illinois Approves Power Line Rejected in Missouri

We previously posted that the Missouri Public Service Commission rejected a power line project called the Grain Belt Express, which would connect wind energy generation in Kansas to users in Indiana. The Illinois Commerce Commission has approved the project, making Missouri the only holdout.  Clean Line Energy, the company behind the project, plans to continue to seek approval either by reapplying to the state or seeking an overriding federal approval.

Texas Utility Offer Free Nighttime Electricity

TXU energy has offered customers free energy at night. This unusual offer is an attempt to shift use from daytime, when wholesale energy costs are high, to night, when prices drop.

Texas may be better able to adopt a program like this. It has more wind resources than other parts of the country, accounting for 10 percent of generation, and wind blows more at night. In addition, the Texas grid operates largely independently from the other grids in the country, so it cannot easily sell and deliver excess generation to the larger wholesale market.

You can find out more about this free electricity program here.


Cardboard Sewers Collapse in Canada

In the building boom after World War II, many Canadian sewer service lines were built of a tar-impregnated cardboard. These pipes have been failing with increasing frequency. Some Canadian cities are facing replacement costs of hundreds of millions of dollars.

It appears that these pipes stood up well until dishwasher became common and the hot water began to soften them. This is an interesting illustration of how we are putting new demands on our infrastructure that could hardly have been imagined decades ago when it was originally built.


You can read more about this issue here.

Sunday, November 8, 2015

Transportation & Water Update


New Transportation Director for Missouri

The Missouri Highway and Transportation Commission has selected Patrick McKenna to serve as director of the state Department of Transportation (MoDOT). Presently, McKenna is deputy commissioner of the New Hampshire DOT. He will start his new job on December 7.

He will start his new job at an agency facing many challenges, particularly low revenues.  MoDOT has not significant improvement or expansion projects slated for the next five years because of lack of funding. The agency anticipates it will not even have enough money to fully maintain roads and bridges in the state within a couple of years.

McKenna will be coming from a different environment. New Hampshire raised its fuel tax in 2014. It also has toll roads; Missouri has none, though McKenna has suggested it should be on the table as a way to pay for roads.

You can find out more about McKenna and his appointment in the Kansas City Star, Jefferson City News-Tribune, or St. Louis Post-Dispatch.


California Communities Consider Direct Potable Reuse


The drought in California has led to a discussion of direct potable reuse of wastewater. This “toilet-to-tap” practice involves sending treated wastewater directly to treatment for drinking water. Some Texas communities have already adopted this practice as a response to drought. You can find out more here.

Sunday, October 25, 2015

Infrastructure & Environment News




My lack of time to write for this blog has reduced me to a compiler of infrastructure news, though such compilation has always been part of Infrastructure Watch. You can links to several alternative energy articles here.

Google Pledges Investment in African Renewables Project

Google pledged to invest in the Lake Turkana Wind Power Project in Kenya. You can find more about this project here.

Low Gas Prices No Problem for Solar

Low gas prices didn’t last long around here (at least they didn’t stay less than $2 per gallon for long). Either way, Tony Randall discusses why low oil prices are not a problem for the continued growth of solar power in Bloomberg.

Renewables Generators Face Distribution Problems

As the U.S. develops renewable energy resources, it is facing a problem: the places where we most want to use the energy are some distance from the places where we are best able to generate it.  States in the middle of the country are becoming involved in conflicts between clean energy proponents and landowners, sometimes turning environmental and energy groups into uncomfortable allies.

Missouri is one state where the issue has come to head. Earlier this year, the Public Service Commission rejected a project that would carry energy from wind farms in Kansas to users in Indiana. The commission determined that the project was not needed, and many of the public comments received by the commission expressed opposition to the project. The company behind the proposal, Clean Line Energy Partners LLC of Texas, is also proposing a line to connect Oklahoma to Tennessee, which faces opposition in Arkansas.

Environmental groups have been supportive of the Missouri project. Missouri’s chapter of the Sierra Club has acknowledged that the Clean Line route avoids many environmentally sensitive areas, and expressed hope that it will help in the move away from coal. The Sierra Club also supported a Clean Line project in part of Arkansas where it was opposing an oil pipeline project.

Supreme Court Hears Demand Response Case

The Supreme Court has been hearing arguments in a case related to demand response. Demand response refers to methods large energy user adjust their use to reduced demand during normally high use times when energy is expensive. Demand response reduces peak demand, evens out energy use, and reduces cost of energy production.

Companies have created markets to trade these reductions in demand (sometimes called negawatts) as if they were power being supplied to the market. When major users reduce shift use or move use to off-peak times, they reduce the need to ramp up additional generating units, and save money for generators. The Federal Energy Regulatory Commission (FERC) has enshrined this in regulations that require energy wholesalers to pay for these commitments to reduce demand the same amount they pay for a commitment to generate electricity.

The crux of the argument before the court is the regulatory authority of FERC. FERC has authority related to wholesale energy markets, where commitments to generate might be traded (and FERC rules say a commitment to reduce demand should get an equal price). The utility customers who are making the commitments to reduce demand are buying energy in the retail market, which is regulated by states.  Opponents of the FERC rules say that it is getting into retail markets in which it has not authority. FERC argues that it is the only agency that can effective regulate this kind of trading, and that there is a public good in the demand reductions and efficiencies provided by demand response.

You can find more about this case here, along with a description of how it may become important to small retail electricity users (i.e. almost all of us).

Infrastructure

John Oliver Thinks Infrastructure Sexy

Comedian John Oliver featured America’s infrastructure in a segment on his show Last Week Tonight. Obviously, Oliver’s tone is humorous and mocking, but he presents a thoughtful essay on the issue. You can see it on YouTube.


New Environmental Director in Nebraska

Congratulations to Jim Macy, who was recently appointed by Gov. Pete Ricketts to serve as director of the Nebraska Department of Environmental Quality. Macy has worked in the area of environmental regulation and compliance for decades, including leadership roles at the Missouri Department of Natural Resources.


States Take Lead on Infrastructure Funding

Washington senate leaders have proposed to raise the state gas tax to 11.7 cents per gallon over the next three years. The proposal would also redirect a portion of the state’s sales tax to its transportation fund (more here).

Oregon will experiment with a program of fees based on miles driven rather than a gas tax beginning this summer (more here). Many think this is a more rational way to fund highways.

In my home state of the Missouri, the governor came just short of calling for a gas tax hike as part of the state of the state address. Tax Justice Blog has a nice summary of proposals in several other states.


Baltimore Sewers Featured on Radio

The radio program Marketplace featured the Baltimore, MD, sewer system and the issues associated with a large, aging infrastructure (listen to or read the story here). Baltimore is not unique; these problems are plaguing cities across the nation.

San Francisco Opens New Hetch Hetchy Tunnel

The San Francisco Public Utilities Commission opened the New Irvington Tunnel. The 3.5-mile, 9-ft diameter tunnel will carry 265 million gallons a day. It is part of the Hetch Hetchy system, which brings water from reservoirs as far away as Yosemite National Park, 167 miles. (Read more about the project at KQED.)

Real-Time Sensor for Bacteria in Water

A device has been developed in Denmark that can detect bacteria in water. Of course, not all bacteria is harmful, so it seems the usefulness of the tool may be limited to screening for now. However, it continuous, real-time monitoring could be a useful screen to determine when additional testing is should be performed or when a contamination event started. If commercial versions of the sensor are affordable, multiple sensors could be placed in a drinking water distribution system to continuously monitor water quality, disinfection effectiveness, and potential contamination.  You can find out more about the sensor here.

Water and Art


Adres Jacque will build a temporary structure that uses plants to purify water in the courtyard of MoMA PS1. Organisms in the structure will glow in the dark to provide light. See this Fast Company article for more information.

Tuesday, March 3, 2015

Infrastructure & Environment News



My lack of time to write for this blog has reduced me to a compiler of infrastructure news, though such compilation has always been part of Infrastructure Watch. You can links to several alternative energy articles here.

Low Gas Prices No Problem for Solar

Low gas prices didn’t last long around here (at least they didn’t stay less than $2 per gallon for long). Either way, Tony Randall discusses why low oil prices are not a problem for the continued growth of solar power in Bloomberg.

Infrastructure

John Oliver Thinks Infrastructure Sexy

Comedian John Oliver featured America’s infrastructure in a segment on his show Last Week Tonight. Obviously, Oliver’s tone is humorous and mocking, but he presents a thoughtful essay on the issue. You can see it on YouTube.


New Environmental Director in Nebraska

Congratulations to Jim Macy, who was recently appointed by Gov. Pete Ricketts to serve as director of the Nebraska Department of Environmental Quality. Macy has worked in the area of environmental regulation and compliance for decades, including leadership roles at the Missouri Department of Natural Resources.


States Take Lead on Infrastructure Funding

Washington senate leaders have proposed to raise the state gas tax to 11.7 cents per gallon over the next three years. The proposal would also redirect a portion of the state’s sales tax to its transportation fund (more here).

Oregon will experiment with a program of fees based on miles driven rather than a gas tax beginning this summer (more here). Many think this is a more rational way to fund highways.

In my home state of the Missouri, the governor came just short of calling for a gas tax hike as part of the state of the state address. Tax Justice Blog has a nice summary of proposals in several other states.


Baltimore Sewers Featured on Radio

The radio program Marketplace featured the Baltimore, MD, sewer system and the issues associated with a large, aging infrastructure (listen to or read the story here). Baltimore is not unique; these problems are plaguing cities across the nation.

San Francisco Opens New Hetch Hetchy Tunnel

The San Francisco Public Utilities Commission opened the New Irvington Tunnel. The 3.5-mile, 9-ft diameter tunnel will carry 265 million gallons a day. It is part of the Hetch Hetchy system, which brings water from reservoirs as far away as Yosemite National Park, 167 miles. (Read more about the project at KQED.)

Water and Art

Adres Jacque will build a temporary structure that uses plants to purify water in the courtyard of MoMA PS1. Organisms in the structure will glow in the dark to provide light. See this Fast Company article for more information.