Are California's Utilities Their Own Worst Drought Enemies?

From www.wateronline.com

By Peter Chawaga, Associate Editor, Water Online

In California, life for water and wastewater utilities isn’t easy. They are asked to find solutions for increasingly desperate drought conditions and to do so in ways that won’t make things worse. A new effort to keep them from contributing to climate change might not make things any easier for now, but it could make for a brighter future.

In late August, a bill sponsored by the Union of Concerned Scientists (UCS) and introduced by Senator Fran Pavley passed California State Legislature. Enrolled and presented to Governor Brown in early September, the bill “SB-1425 Water-Energy Nexus Registry,” would require the California Environmental Protection Agency to develop a registry for greenhouse gas emissions produced by water suppliers and water and wastewater treatment plants.

“According to Senator Pavley, this bill was inspired by our report ‘Clean Energy Opportunities in California’s Water Sector,’ which concluded that better data are needed to understand where opportunities lie for the water sector to contribute to California’s climate goals,” said Dr. Juliet Christian-Smith, a UCS climate scientist.

To illustrate the pollution that inspired the bill, Christian-Smith cited California Energy Commission findings that the water sector uses about 20 percent of California’s electricity and 30 percent of its natural gas to pump, treat, transport, deliver, and heat water.

In California as elsewhere, water and wastewater utilities either purchase electricity from a public enterprise or the wholesale market — in which case they have little say over how the energy is produced — or they buy it from independent providers or generate it themselves, which does allow them to choose where that power comes from.

To read more, click here.

Waterless Urinals Save More than Water

Priced any urinals lately? Water using urinals can cost $200 up to as much as $1,200. And the urinal flush valve - usually sold separately - adds another $100 to $500 to the price tag.

In comparison, waterless urinals made by Waterless Co. start at $248...

To read more, click here.

How a Water Audit Pays Off

Is there a water audit in your future?

Managers of industrial facilities want to conserve water and find ways to use it more efficiently if for no other reason than it is the right thing to do, right? Well, yes, it is the right thing to do, but there is another reason managers of industrial locations should consider ways to reduce water consumption, and that is to save money.

This article is being written in Chicago where water and sewer rates have essentially doubled since 2007 and have yet to plateau. One report indicates they will go up another 14 percent by 2019. So if the average water bill for a homeowner in Chicago (apartments and single-family homes) was about $35 monthly in 2007, they are now looking at $70 per month, which will likely be getting closer to $100 per month fairly soon.

By comparison, for an industrial location using thousands of gallons of water each month, we’re talking about rate increases that could total several thousand more dollars per year. Managers of industrial locations do not have to be victims of these increases, however. They can take action now to help minimize them and possibly even reduce water and sewer costs. It all starts by conducting a water audit.

Water Efficiency or Water Conservation

Before discussing water audits, we need to clarify a few points. First, although the terms are often used interchangeably, “water conservation” and “water efficiency” are not the same. Possibly this will explain the difference:

If your facility was told to cut back water consumption by 25 percent for 12 months due to a drought, that would be water conservation. You are reducing water consumption to address a current water shortage.

If your business was notified to reduce water consumption by 25 percent on a permanent basis, you would need to find ways to use water more efficiently. Water efficiency is long-term conservation.

Another thing we should clarify regards saving money. There is a very close connection between water and energy. Most facilities use quite a bit of water for heating and cooling, both of which require fuel and energy. Reducing consumption here can help lower power bills as well as water and sewer bills.

Conducting a Water Audit

A water audit is designed to identify where water is being used in a facility, where it may be wasted, and where the amount of water used can be reduced.  If this is the first time you have conducted a water audit or created a water audit checklist, the task can be made a lot easier if we focus on certain areas of the facility. According to the South Florida Water Management District (SFWMD), in a commercial/industrial facility most of the water consumed is in these four areas: *

·         Kitchens and restrooms, 41 percent

·         Cooling/heating, 28 percent

·         Landscaping, 22 percent

·         “Other,” 9 percent (Note: “other” was not defined)

It is typically best to have audits of cooling and heating systems conducted by an expert in that area. They can generate what is called a "water use efficiency report." Landscaping may also require someone specializing in irrigation. Often all that is needed is the installation of water efficient sprinkler heads.

However, conducting a water audit of kitchens and restrooms is something most facilities can easily do in-house, using water audit forms or water audit templates that can be found online,  and as we see, it is where the largest amount of water is typically used.**

Our next step in the water audit is to establish a benchmark. We need to know exactly how much water is being used in the building so we can see if our efforts are proving successful. Even though our focus now is just restrooms and kitchens, our efforts in reducing consumption here will be reflected in future water consumption and water bills.

To establish a benchmark, gather 12 months or more of water utility bills. Our concern now is not costs but the amount of water consumed. Total and then average these amounts to find your monthly usage.**

Next,  the water audit includes taking the following steps:

·         Pay vigorous attention to leaks. According to SFWMD, “leak detection exercises can save a facility tens to hundreds of thousands of gallons of water per year.”

·         Total all toilets in the building and list how much water each is designed to use per flush. Newer toilets are required to use no more than 1.6 gallons of water per flush (GPF). Be aware that as toilets age, they may use more than the amount specified. Kits are available to help reduce the amount of water used by toilets or replace toilets so that they use about 1.25 GPF, a reduction of about 20 to 65 percent in water consumption depending on the toilet.

·         Now collect similar data regarding urinals. Newer urinals are designed to use 1 GPF; however, just like toilets, as the flush handles age, they may use more. Kits to reduce water use in urinals may not be dependable. While some urinals are available that use .5 GPF, due to installation costs, many facilities choose to install waterless urinals. Water consumption is eliminated entirely and waterless urinals tend to be relatively inexpensive to purchase and install compared to a water-using urinal.

·         If your facility has shower areas, make sure inexpensive aerators have been installed in all shower heads.

·         Check that aerators have also been installed in all faucets. A faucet can use more than 2 gallons of water per minute; aerators installed in faucets can reduce this to 0.5 gallons per minute.

·         Retrofitting a commercial kitchen with a new dishwasher can reduce water consumption by as much as 50 percent, depending on the age of the dishwasher. Similarly, and often overlooked, ice makers that are air-cooled use considerably less water than a water-cooled system.

According to SFWMD, by taking these and similar steps, commercial and industrial facilities can significantly improve water efficiency. In fact, they indicate studies have found that water savings can range “from 15 to 50 percent, with 15 to 35 percent being the most typical savings.”

Of course, the actual savings can depend on many variables, such as when the building was constructed and whether water efficiency efforts were designed into the building when constructed. In either case, a water audit should be re-conducted every couple of years to make sure the facility is using water efficiently and if taking steps such as installing waterless urinals are needed..

A frequent speaker and author on water conservation issues, Klaus Reichardt is founder and CEO of Waterless Co. Inc, Vista, CA, makers of waterless urinals and other restroom products. He founded the company in 1991 with the goal to establish a new market segment in the plumbing fixture industry with water conservation in mind. He may be reached at Klaus@waterless.com

* Based on water consumption around the United States, not just Florida. Percentages can vary in an industrial location depending on how water is used.

** Some facilities have “sub-meters” that indicate how much water is used in different areas of the building. If so, isolate just those amounts used in kitchens and restrooms, then total and average the amounts when conducting a water audit.