Water containing wastes – aka wastewater – from residential, commercial and industrial processes requires treatment to remove pollutants prior to discharge. After treatment, the water is suitable for nonconsumption (nonpotable) and even potable use.
In California, water recycling is a critical component of the state’s efforts to use water supplies more efficiently. The state presently recycling about 669,000 acre-feet of water per year and has the potential to reuse an additional two million acre-feet per year.
Non-potable uses include:
landscape and crop irrigation
stream and wetlands enhancement
industrial processes
recreational lakes, fountains and decorative ponds
toilet flushing and gray water applications
as a barrier to protect groundwater supplies from seawater intrusion
wetland habitat creation, restoration, and maintenance
California Atty. Gen. Xavier Becerra filed a lawsuit Tuesday night against the Trump administration, alleging that the federal government violated the Clean Water Act by allowing, in recent years, millions of gallons of raw sewage, heavy metals and other contamination to routinely spill from Tijuana into San Diego.
A lawsuit brought by South Bay cities alleging the federal government is not doing enough to prevent and treat the flow of Tijuana sewage into the U.S. can move forward, a San Diego federal judge ordered this week. The ruling, filed Wednesday, comes a day after U.S. District Judge Jeffrey Miller toured pumps and water-capture basins in the Tijuana River Valley to get a first-hand look at the issue.
Among the great variety of locations a couple might consider as their wedding venue, a sewage treatment plant probably would not rank highly. Yet weddings are happening at the Brightwater Treatment Plant near Maltby, Washington. To be precise, couples are booking the Brightwater Education and Community Center for their nuptials. Two dozen couples have tied the knot within the center’s striking contemporary architecture since 2014.
Horror tales from recent earthquakes overseas are moving people in Seattle, Portland and along the Pacific Northwest coast to give a crap about where to crap after a major earthquake. It’s not something we typically discuss in polite company, but disaster planners say that when water and sewage service fails, finding a place to poop is a big deal.
Federal court judge Jeffrey T. Miller toured the Tijuana River Valley for several hours on Tuesday to observe pumps and canyon collectors along the border intended to prevent sewage from spilling into San Diego. The unusual move comes as the result of a contentious legal battle in which Miller must decide whether the Trump administration is doing enough to stop sewage that routinely pours into the United States from Mexico.
It might seem harmless at first: a thread of dental floss tossed in the toilet, a contact lens swirling down the drain of the bathroom sink. But even the tiniest of items can contaminate waterways. … Pharmaceuticals, which are also frequently flushed down the drain, have been found in our drinking water, and the consequences are not fully known.
Bottled water giant Crystal Geyser has been charged by a grand jury with 16 counts of violating environmental and hazardous waste laws, after the jury viewed evidence that the company improperly disposed of toxic waste, a Department of Justice press release said.
Coronado’s mayor flew to Oklahoma this week to talk with the head of the Environmental Protection Agency about possible solutions to the recurring Tijuana sewage spills that sully the San Diego County coastline. Mayor Richard Bailey and Administrator Scott Pruitt spoke one-on-one for about 20 minutes Tuesday during an annual meeting between leading environmental experts and regulators from Mexico, the United States and Canada.
Wastewater recycling doesn’t have to be a fancy affair. Sometimes it can be as simple as building a pipeline. That is more or less the full description of the North Valley Regional Recycled Water Project. Only a year after starting construction, at a cost of around $90 million, the project is already delivering recycled urban wastewater to farms and wildlife refuges in California’s San Joaquin Valley, providing a reliable new water supply to a drought-plagued region.
The state Attorney General has joined San Diego’s regional water regulators in pressuring the White House to do more to address sewage from Tijuana that routinely spills over the border fouling beaches as far north as Coronado. The San Diego Regional Water Quality Control Board, with the backing of Attorney General Xavier Becerra’s office, on Monday filed a 60-day notice of intent to sue the federal government for violations of the Clean Water Act.
The top United States official at the international agency charged with overseeing efforts to stem ongoing water pollution in the Tijuana River Valley stepped down on Friday. The departure of Edward Drusina, former commissioner of the U.S. section of the International Boundary and Water Commission, or IBWC, comes as the agency continues to face legal attacks from South Bay cities that routinely shutter beaches due to pollution from south of the border.
The city of Oakland and East Bay Municipal Utility District must pay more than $360,000 for violating the Clean Water Act by allowing untreated sewage into the San Francisco Bay, officials said Tuesday. In 2014, EBMUD and seven East Bay communities it serves, including Oakland and Berkeley, paid $1.5 million in civil penalties for past sewage discharges.
[Rep. Susan] Davis, a San Diego Democrat on the House Armed Services Committee, has grown concerned about untreated sewage leaking from Tijuana’s aging and overworked wastewater collection and treatment system, a problem exacerbated by surges of fecal contamination when Mexican pipes break, pumps fail and rain falls.
Disposal of sewage is something most people would rather not think about, but that reluctance is costing Marin residents a pretty penny, according to a new Marin County Civil Grand Jury report. The report, released Friday, recommends immediate consolidation of three sanitary districts in central Marin — Sanitary District No. 1 (Ross Valley), Sanitary District No. 2 (Corte Madera) and the San Rafael Sanitary District.
A plan to pipe treated wastewater from Tijuana to the Guadalupe Valley is being championed by authorities who say the project not only would support the state’s wine-growing region, but also solve another problem: reducing the flow to the overburdened San Antonio de los Buenos coastal sewage treatment plant.
Members of the San Diego Regional Water Quality Control Board gathered in a closed session on Monday afternoon, debating whether to file a lawsuit against the federal government to stem the cross-border flow of sewage, sediment and other contaminants from Tijuana to San Diego.
South Bay elected officials said they are filing a lawsuit Friday in the most dramatic attempt in decades to force the federal government to plug up the millions of gallons of sewage and polluted water that routinely stream over the border from Tijuana into the San Diego region.
Becky Van and Kale Novalis knew exactly when and where they were going to tell each other, “I love you,” for the first time. … The couple had signed up for a Valentine’s Day tour of the Newtown Creek Wastewater Treatment Plant, the largest of 14 wastewater treatment facilities in New York City.
The pipes carrying away the effluvia of very sick people are bound to be nasty, dirty places. But just how unwholesome they are is made clear in a new report showing that the pipes beneath a hospital intensive care unit are a throbbing, seething hookup zone for antibiotic-resistant bacteria.
On Thursday, National Oceanic and Atmospheric Administration special agent Don Tanner confirmed the investigation will be conducted into the incident involving the spill of up to 4.9 million gallons of untreated wastewater into the bay from the Monterey One Water treatment plant.
An investigation will be conducted into the failure of a computer warning system at the Monterey One Water regional treatment plant which allowed millions of gallons of untreated sewage to flow into the Monterey Bay for more than eight hours late Friday night and early Saturday morning. According to Monterey One Water General Manager Paul Sciuto, the investigation began Monday morning and will be conducted by the consulting firm Pinnacle ART.
Precipitation carrying tainted water through the Tijuana River into the Pacific Ocean triggered beach closures Tuesday evening from the international border to Seacoast Drive in Imperial Beach. … The pollution from stormwater runoff adds to spills from aging pipes and potentially hazardous discharges from the deteriorating San Antonio de Los Buenos sewage treatment plant in Punta Bandera, located about six miles south of the border.
The U.S. Section of the International Boundary and Water Commission announced Thursday that it wants to hold a workshop with San Diego-area cities and agencies in hopes of staving off a lawsuit over the flow of sewage from Mexico.
Officials in Imperial Beach said Wednesday that sewage flowing up the coast from Tijuana fouled miles of shoreline over the weekend, severely sickening surfers and other beach goers. Mayor Serge Dedina, who also fell ill, said he received no advanced notice from officials in Mexico about the pollution.
At least one San Diego leader wants water researchers to start testing city waterways for hepatitis A. Councilman David Alvarez on Thursday penned a letter to the Southern California Coastal Water Research Project requesting that the environmental research group start testing as many as a half-dozen area waterways for the deadly liver infection.
Modesto has agreed to pay the state a $165,000 fine for releasing about 755 million gallons of partially treated waste water into the San Joaquin River in March in violation of its discharge permit.
The San Diego River saw a huge increase of pollution from human feces last winter, according to documents obtained from regional water quality regulators. The flood of human waste came as storms drenched the region, washing pollution from the urban environment into watersheds and potentially flushing sewage from leaky pipes through groundwater into rivers and creeks.
The San Diego County Board of Supervisors voted Tuesday to join the growing legal campaign to force the federal government to do more to stop sewage from spilling over the border from Tijuana that routinely fouls South Bay beaches. “Enough is enough,” Supervisor Greg Cox, whose district includes border region with Mexico, said in a statement.
Kern County has agreed to stop challenging the City of Los Angeles over its practice of dumping treated human waste on Kern County farmland, capping a bitter legal battle that has spanned more than a decade.
North Coast water regulators are taking another run at a comprehensive program to prevent bacterial contamination of the Russian River, one that includes provisions likely to have significant impacts for thousands of homeowners dependent on aging septic systems.
Federal water-quality officials on Thursday released a list of actions taken in recent years to stop wastewater from flowing from Mexico into the San Diego region, a little more than a week after the city of Imperial Beach threatened a lawsuit.
The National Park Service has plans to replace aging sewer and water lines in the Muir Woods National Monument that could cause “significant damage” to the environment if they rupture, including to Redwood Creek, home to delicate fish populations.
A state agency has issued a notice of violation to Modesto for discharging roughly 755 million gallons of partially treated waste water in to the San Joaquin River in March because the city’s sewer system had been overwhelmed by storms and rising river water.
A much-anticipated report on a sewage spill in Tijuana that has sparked tensions with San Diego County gave mixed findings Monday. … The investigation was launched by the International Boundary and Water Commission, which oversees water treaties between Mexico and the United States, among other things.
Baja California’s governor is preparing to declare a state of emergency in the coming days, hoping to draw financial aid for Tijuana’s strained and underfunded sewage system following a massive spill that sent millions of gallons of untreated wastewater from Tijuana across the border and into San Diego last month.
About 143 million gallons of sewage spilled into the Tijuana River during a period of more than two weeks, said a report released Friday. No other sewage spill in the greater San Diego-Tijuana region has approached this magnitude in years, according to the environmental group Wildcoast.
Modesto appears to have bought itself some time before it may have to release partially treated wastewater that poses a public health risk into the San Joaquin River. The city’s sewer system has been overwhelmed by the recent storms and rising river water, and it is reaching its capacity to store the wastewater.
For decades, California oil companies have disposed of wastewater by pumping it into aquifers that were supposed to be protected by federal law. California regulators mistakenly granted permits to do it, through a combination of poor record keeping, miscommunication and permitting errors.
Kern County has lost a key round in its decade-long battle with Southern California waste districts over the land application of treated human and industrial waste. Now the Board of Supervisors will have to decide whether to appeal the loss and continue the fight.
For more than 30 years, wastewater from oil and gas operations has been used to irrigate food crops in California. Regulators will re-examine the safety of that practice during a public hearing Friday.
A company that has trained dogs to recognize the smell of human fecal bacteria has been sniffing out sources of water pollution nationwide, discovering broken sewer pipes, leaking septic tanks and illegal sewage discharges, to the delight of environmental groups and government agencies.
Though he knows it makes no financial sense, Sam Lipson regularly drives to a local sewer plant to haul home free effluent to irrigate the trees in his yard.
Would you rather drink a cup of recycled wastewater or advanced purified water? Actually, that’s a trick question – both terms are often used to talk about the same thing.
The U.S. Environmental Protection Agency calls nutrient pollution the “single greatest challenge to our nation’s water quality.” Rising concentrations of nitrogen and phosphorus in waterways, the agency reports, are a significant threat to human health, ecosystems, and local economies.
It is now possible to imagine a future in which highly treated wastewater will be plumbed directly into California homes as a new drinking water supply. On September 8, the State Water Resources Control Board released a long-awaited report on the feasibility of so-called “direct potable reuse.”
I [John Holland] drove out past Merced last year to see a dairy farmer testing a new idea. He irrigated 40 acres of feed corn with drip lines, which are much more common in orchards and vineyards than annual crops.
In rural areas with widely dispersed houses, reliance upon a centralized sewer system is not practical compared to individual wastewater treatment methods. These on-site management facilities – or septic systems – are more commonplace given their simpler structure, efficiency and easy maintenance.
Directly detecting harmful pathogens in water can be expensive, unreliable and incredibly complicated. Fortunately, certain organisms are known to consistently coexist with these harmful microbes which are substantially easier to detect and culture: coliform bacteria. These generally non-toxic organisms are frequently used as “indicator species,” or organisms whose presence demonstrates a particular feature of its surrounding environment.
The biochemical oxygen demand (BOD) of water determines the impact of decaying matter on species in a specific ecosystem. Sampling for BOD tests how much oxygen is needed by bacteria to break down the organic matter.
The first test of ocean water following a massive California sewage spill came back clean Wednesday, suggesting stinky sludge that drained into the Los Angeles River didn’t flow 20 miles to the coast, officials said.
A damaged sewage line spilled a total of about 2.4 million gallons of untreated waste into the Los Angeles River and has forced the closure of all beaches in Long Beach and Seal Beach, officials said Tuesday.
Organizers of a petition drive to ban the practice of irrigating crops with recycled oil field wastewater will be pitching their cause on Saturday morning to customers at markets in nine cities across the state, including a Ralph’s in Los Angeles.
The U.S. Environmental Protection Agency has banned the disposal of hydraulic fracturing waste water at public sewage plants, formalizing a voluntary practice that removed most fracking waste from Pennsylvania plants starting in 2011. The EPA on Monday finalized a rule that prevents operators from disposing of waste from unconventional oil & gas operations at publicly owned treatment works [POTW's].
Settling a major lawsuit from environmentalists, San Jose city officials on Tuesday agreed to spend more than $100 million over the next decade and beyond to reduce tons of trash that flows into creeks and San Francisco Bay, repair miles of leaking underground sewage pipes and clean stormwater contaminated with harmful bacteria.
The Sacramento Regional County Sanitation District hired Dragados USA to build a biological nutrient removal station, part of a larger $1.5 billion to $2 billion effort to meet stricter state standards on wastewater pollutants discharged into the Sacramento-San Joaquin Delta.
The U.S. Environmental Protection Agency is failing in its mandate to protect underground drinking water reserves from oilfield contamination, according to a federal review singling out lax EPA oversight in California, where the state routinely allowed oil companies to dump wastewater into some drinking water aquifers.
Californians have lived with the risk of a damaging earthquake for centuries. Now Oklahomans, and some Kansans, face the same threat, federal seismologists said on Monday.
By a unanimous vote, the San Bernardino Valley Municipal Water District, a water wholesaler for about 353 square miles of San Bernardino County, certified the proposed Sterling Natural Resources Center project, which would capture and treat East Valley Water District’s wastewater and add the output to the Bunker Hill Groundwater Basin, which is at a historic low level.
A 2005 spate of quakes in California’s Central Valley almost certainly was triggered by oilfield injection underground, a study published Thursday said in the first such link in California between oil and gas operations and earthquakes.
In the wake of drought and environmental concerns, more water agencies in California and across the West are finding a new water source for human consumption in an unexpected place: the sewer.
U.S. Environmental Protection Agency officials were in Carlsbad on Wednesday to announce more than $182 million in federal funding that will be funneled to drinking water and wastewater infrastructure improvements throughout California.
Like all ski areas in the Tahoe-Truckee region, Soda Springs Mountain Resort’s efforts to stretch out its operations during California’s four-year drought has been an uphill climb.
A U.S. Interior Department investigation glossed over the federal government’s negligence in a massive toxic wastewater spill from an inactive gold mine that fouled rivers in three states, Republicans in Congress said as they pushed for a more detailed explanation of the accident.
In an attempt to prevent its oil industry from contaminating groundwater sources that could be used for drinking water, California regulators closed 33 wells last week that were injecting oilfield waste into protected aquifers.
An Associated Press analysis of data from leading oil- and gas-producing states found more than 180 million gallons of wastewater spilled from 2009 to 2014 in incidents involving ruptured pipes, overflowing storage tanks and even deliberate dumping.
The Central Valley Regional Water Quality Control Board ignored its own staff recommendation and voted to let Valley Water Management Co. continue disposing of excess wastewater by spraying it on hillsides for another 21/2 years.
Although treating wastewater generally ranks alongside police and fire safety, schools, and transit as the top priorities of any sensible city hall, new ideas about cleaning up sewage almost never attract headlines or TV airtime. … It has taken a four-year drought in California to change that.
Reclaimed water from California’s first sewer plant to give it away free has become so popular in the drought that operators are limiting who can use it.
The three-part series, “Acres & Avenues,” will feature three pairs of farmers and urban business people from around the nation who share ideas on sustainability, entrepreneurship and wellness.
In the fourth year of an unrelenting drought emergency, every use of water in California is being put under the microscope. Watering a lawn, filling a pool, washing a car, growing food — all are familiar practices now viewed with a more critical eye. The same is true of California’s oil industry, the nation’s third largest.
It’s a technology with the potential to ease California’s colossal thirst and insulate millions from the parched whims of Mother Nature, experts say. But there’s just one problem — the “yuck factor.”
Here in California’s thirsty farm belt, where pumpjacks nod amid neat rows of crops, it’s a proposition that seems to make sense: using treated oil field wastewater to irrigate crops.
The farm is taking part in a research project using worms to consume nitrogen in manure-tainted water that irrigates its feed crops. The goal, in part, is to reduce the risk of pollution. But the process also has a byproduct – an especially rich fertilizer that can be sold to home gardeners and other users.
Seeking to accelerate San Diego’s efforts toward greater water independence, Mayor Kevin Faulconer will lobby Gov. Jerry Brown today for financial and regulatory help with the city’s $3.5 billion plan to recycle sewage into drinking water.
San Jose Mayor Sam Liccardo, Santa Clara Mayor Jamie Matthews and other Silicon Valley leaders on Monday took big gulps of recycled water — filtered, cleaned and disinfected sewage — to show that it is safe and should be a growing part of Silicon Valley’s drinking water future.
The question of how the state’s petroleum companies should dispose of wastewater that comes from the ground mixed with newly pumped crude oil attracted a gathering of anti-fracking protesters in Long Beach on Tuesday.
In hearings at the Capitol last week, lawmakers excoriated Brown’s staff for letting oil drillers inject wastewater into wells in protected aquifers and for allowing a battery recycler in Southern California to operate under a temporary permit for decades while emitting hazardous waste.
The agencies charged with overseeing oil production and protecting California’s ever-dwindling water sources from the industry’s pollution all fell down on the job, one state official told a panel of peeved lawmakers Tuesday.
California officials, responding to concerns about groundwater contamination, are closing 12 wells in the Central Valley used to dispose of chemical-laden water from oil and gas production, regulators announced Tuesday.
Sonoma County’s new public electricity supplier is turning to the sun and water — the airspace over treated sewage ponds, specifically — to generate power for local homes and businesses.
Water officials in Kern County discovered that oil producers have been dumping chemical-laden wastewater into hundreds of unlined pits that are operating without proper permits. … The pits — long, shallow troughs gouged out of dirt — hold water that is produced from fracking and other oil drilling operations.
The city of Dixon is suing a taxpayers’ group, trying to block an electoral challenge to a sewage rate increase in a growing rift over how to pay for $23 million or more in state-mandated improvements to the town’s wastewater treatment plant.
Fresno is turning its sewer farm into a drought-buster. City Hall has started building the first phase of an advanced treatment plant that will deliver millions of gallons of water every day for non-drinking uses, such as irrigation of green space.
The recent revelation that oil companies were allowed to inject wastewater into federally protected aquifers has spurred alarm from the federal Environmental Protection Agency and put state regulators on the defensive.
The show floor at WWETT 2015 will be filled with the latest and greatest products the water and wastewater industry has to offer. But it’s also important to remember where the industry came from. A historical display, sponsored by NASSCO, and coming to the Water & Wastewater Equipment, Treatment and Transport (WWETT) Show in February, will do just that.
By next year work should be underway on National Park Service property at Stinson Beach to gird against rising seas that are predicted to swallow part of Marin’s coast sometime this century. The threat of sea-level rise is the primary reason why the park service is planning a $2.3 million revamp of a wastewater treatment system …
A project to build a system for conveying recycled wastewater from Modesto and Turlock to farmland in western Stanislaus County won’t have a significant impact on the environment, a study says.
A local demonstration project announced Tuesday would treat up to 136,500 gallons per day of oil field wastewater for reuse in agriculture and steam-based well stimulation.
Taking a long-anticipated step to reduce coastal pollution, the Malibu City Council has voted to approve construction of a wastewater treatment plant in the Civic Center area.
DC Water dedicated its second Tunnel Boring Machine (TBM) on December 12, 2014. It has been named “Nannie”, in honor of Nannie Helen Burroughs, a prominent 20th century African-American educator, civil rights activist, and Washington resident. This TBM will join another – called “Lady Bird” – as part of Washington’s strategy to reduce combined sewage overflows into the Anacostia and Potomac Rivers when it rains.
A broad coalition of 27 non-governmental organizations (NGOs) including The Sierra Club, The Nature Conservancy, and The Conservation Fund has pledged to support the Urban Waters Federal Partnership as it works to restore waterways and revitalize communities across the country. … Many urban waterways have been polluted for years by sewage, runoff from city streets, and contamination from abandoned industrial facilities.
A proposal to deliver wastewater from a Toro-area community services district to the regional treatment plant for recycling could be a key part of any Monterey County Board of Supervisors approval of the Ferrini Ranch development.
As climate change exacerbates the most severe weather and speeds sea-level rise, deficiencies in wastewater infrastructure will become harder to ignore—and increasingly costly to clean up after failures.
What comes to mind when you think of purple? Likely you conjure images of grapes, flowers, or your favorite socks. How about a purple pipe? Most states require pipes to be colored purple if they carry reclaimed water. … Reclaimed, or recycled, water is highly treated wastewater that’s used again for a variety of purposes such as irrigation, industrial processes, and cooling towers.
In a new report, the Center for American Progress takes a look at the danger climate change poses to wastewater systems from stronger storms, higher seas, and heavier downpours and offers realistic and cost-effective recommendations to shore up this aging infrastructure before the next massive storm. Chief among those recommendations are that all new investments in wastewater infrastructure take into account the projected impacts of climate change and that affordable, green infrastructure solutions be considered.
Step by step, sewage flows through the city’s Donald C. Tillman Water Reclamation Plant in the San Fernando Valley. Ultimately, the cleaned effluent flows into lakes and rivers. … Mayor Eric Garcetti, who prefers the term “showers to flowers” instead of “toilet to tap,” also lobbied for groundwater cleanup funds.
Because of restrictions on burning, California hospital representatives say their only option appears to be trucking the waste over public highways and incinerating it in another state — a prospect that makes some environmental advocates uneasy. … Dr. David Perrott, chief medical officer for the California Hospital Assn., said there was also confusion about whether infected human waste could be flushed down the toilet.
The U.S. Environmental Protection Agency is providing $335,000 in technical assistance to five communities to help them develop components of integrated plans for wastewater and stormwater management.
This 30-minute documentary-style DVD on the history and current state of the San Joaquin River Restoration Program includes an overview of the geography and history of the river, historical and current water delivery and uses, the genesis and timeline of the 1988 lawsuit, how the settlement was reached and what was agreed to.
This 25-minute documentary-style DVD, developed in partnership with the California Department of Water Resources, provides an excellent overview of climate change and how it is already affecting California. The DVD also explains what scientists anticipate in the future related to sea level rise and precipitation/runoff changes and explores the efforts that are underway to plan and adapt to climate.
Many Californians don’t realize that when they turn on the faucet, the water that flows out could come from a source close to home or one hundreds of miles away. Most people take their water for granted; not thinking about the elaborate systems and testing that go into delivering clean, plentiful water to households throughout the state. Where drinking water comes from, how it’s treated, and what people can do to protect its quality are highlighted in this 2007 PBS documentary narrated by actress Wendie Malick.
A 30-minute version of the 2007 PBS documentary Drinking Water: Quenching the Public Thirst. This DVD is ideal for showing at community forums and speaking engagements to help the public understand the complex issues surrounding the elaborate systems and testing that go into delivering clean, plentiful water to households throughout the state.
In the West, it is not a matter of if a drought will occur, but when. In an effort to develop a drought-proof water supply, many communities are turning to water recycling. Water recycling is reusing treated wastewater for irrigating golf courses, other urban landscapes, some crops, wetlands enhancement, industrial processes and even groundwater recharge. But many people do not understand how water is treated, recycled and reused, causing some to oppose new projects.
This 15-minute video explains in an easy-to-understand manner the importance of groundwater, defines technical terms, describes sources of groundwater contamination and outlines steps communities can take to protect underground aquifers. Includes extensive computer graphics that illustrate these groundwater concepts. The short running times makes it ideal for presentations and community group meetings. Available on VHS and DVD.
This beautifully illustrated 24×36 inch poster, suitable for framing and display in any office or classroom, focuses on the theme of Delta sustainability.
The text, photos and graphics explain issues related to land subsidence, levees and flooding, urbanization and fish and wildlife protection. An inset map illustrates the tidal action that increases the salinity of the Delta’s waterways. Development of the map was funded by a grant from the California Bay-Delta Authority.
As the state’s population continues to grow and traditional water supplies grow tighter, there is increased interest in reusing treated wastewater for a variety of activities, including irrigation of crops, parks and golf courses, groundwater recharge and industrial uses.
The 28-page Layperson’s Guide to California Wastewater is an in-depth, easy-to-understand publication that provides background information on the history of wastewater treatment and how wastewater is collected, conveyed, treated and disposed of today. The guide also offers case studies of different treatment plants and their treatment processes.
The 24-page Layperson’s Guide to the Delta explores the competing uses and demands on California’s Sacramento-San Joaquin Delta. Included in the guide are sections on the history of the Delta, its role in the state’s water system, and its many complex and competing issues with sections on water quality, levees, salinity and agricultural drainage, and water distribution.
