Sizing a VFD: 2 PM CST August 2

Sizing a VFD: 2 PM CST August 2
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Variable Frequency Drives (VFDs) have been and continue to be used in many applications within our water and wastewater treatment plants. Applied correctly and the simple VFD will extend the life of your aging infrastructure and even reduce energy cost. Properly selecting a VFD may not be fully understood and this presentation will help demystify VFDs, providing a better understanding as to where and why you would use them. Attendees will cover:

•             The “Don’ts” such as don’t size the drive on Hp alone and Don’t forget the system voltage

•             The “Remember To things like” – location, altitude, enclosures

•             Uh – OH’s like long motor leads and non-invertor motors

•             Maybe a little single phase talking or off the power point topics like harmonics

•             And certainly, during the course we will cover some problem areas and even troubleshooting

 

About the Presenter

Larry Stanley was raised and educated in the coal fields of rural West Virginia, earning a BSEET degree from Bluefield State College in West Virginia. He has more than 30 years of experience working with all aspects of design, application, and installation of AC drives and soft-starts. Stanley developed and maintained the drive support group for a major manufacturer from 1985 to 1997. He moved into a Senior Field Engineer’s role in 1997, and since then, supports applications including commercial, municipal, hot ladle, distribution conveyance, food and beverage, and more.

Unfiltered Episode 3 – Circuit Rider Program

In this episode of Rural Water’s Unfiltered, host Michael Preston sits down with Missouri Circuit Rider, Joseph Anstine, and Oregon’s Program Manager and Circuit Rider, Heath Cokeley, to discuss the vital services, technical assistance and training provided to rural water and wastewater systems everyday through the well-established NRWA Circuit Rider program.

Illinois Rural Water Circuit Rider Locates Leak in Unmapped Water Main

TUSCOLA, Ill. – When a 120,000 gallon-per-day leak threatened to disrupt service in Tuscola, Illinois, the community turned to experts from the Illinois Rural Water Association to locate the leak.

“They couldn’t keep up with the demand and they were losing water from the tower,” said Chuck Woodworth, an IRWA Circuit Rider. “They would have run out of water in two days.”

A Rural Water Circuit Rider is a roving water expert that provides training and technical assistance to utilities. Woodworth has previously provided leak detection for Tuscola, city of 4,600.

“They were looking for heavy flows in the sewer main because they couldn’t find any water on the surface,” Woodworth said. Usually the pressure from such a large leak pushes water to the surface, unless it has another place to drain.

After searching the town, Woodworth and Dewayne VanCleave, the Tuscola Systems Operations Specialist, located a manhole with water flowing into it.

“There was water pouring in through the seams,” Woodworth said.

Woodworth used a computerized leak logger to pinpoint a possible location. They consulted the system’s pipe maps and tried to narrow down the leak’s location on the nearest water main. Except when the Circuit Rider tried to confirm the location with a ground mic, he couldn’t hear a leak. There was clearly a leak near the manhole, but there was no leak audible on the nearest mapped water main. The only option was to start searching for another source.

“I started using the ground mic to sweep the area,” Woodworth said. “I found and marked a leak sound.”

He and VanCleave consulted the system map, but there was no main listed at that location.

“I used a subsurface material locator to confirm there was a line in the area,” Woodworth said.

The material locator uses UHF radio waves to measure changes in material density.

With the ground mic and material locator indicating the presence of a leaking main, VanCleave decided to excavate the area.

“Within a couple of scoops from the backhoe, water started coming out of the ground,” Woodworth said. “Normally maps are close, but in this case, it was 20 feet off.”

Locating the leak in the unmapped main saved the community thousands of dollars and prevented the water pressure from dropping low enough to require a boil order.

Lead and Copper Rule 101 for Small and Medium Systems: 2 PM CST June 21

Lead and Copper Rule 101 for Small and Medium Systems: 2 PM CST June 21
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EPA will be conducting a webinar on the federal Lead and Copper Rule. The webinar will provide an overview of the requirements that apply to small and medium systems, including: monitoring and reporting, corrosion control, source water, public education and lead service line replacement.

About the Presenter
Edward Viveiros is an environmental engineer in EPA’s Office of Ground Water and Drinking Water. He supports the Drinking Water Protection Branch as an implementation lead on the Lead and Copper Rule and a supporting lead on the Radionuclides Rule. Prior to joining EPA, he was a consultant with Eastern Research Group, where he provided analytical support to the Agency in the areas of wastewater management and chemical policy. He holds Master’s and Bachelor’s degrees in chemical engineering from Northeastern University.

Revised Total Coliform Rule Webinar: 2 pm CST Jun 28

Revised Total Coliform Rule Webinar: 2 pm CST Jun 28
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This webinar will cover the aspects of the Revised Total Coliform Rule (RTCR) and navigate through changes from the original Total Coliform Rule.

One of the focuses of the RTCR is to find and fix possible contamination issues rather than having an MCL violation for total coliform positive samples.  In place of the MCL violation a Level 1 or Level 2 assessment is done on the system to determine what caused the positive total coliform sample.   MCL Violations, however, can still occur due to positive E. Coli samples, failure to conduct required assessments or failure to fix issues found in the assessments.  The webinar will go through the scenarios of an assessment and/or MCL violation to clear up any confusion with the new rule including the public notification requirements.

Another focus of the RTCR is to limit the number of contaminations that could occur at seasonal systems.  This is accomplished by having the systems conduct state approved start-up procedures that include disinfection, flushing, sampling and fixing any sanitary defects.  It also changed the monitoring frequency for most systems to be at least monthly.  The webinar will go into more detail on these requirements for seasonal systems.

The RTCR also required updates to the sample site plans for water systems.  This included ensuring the routine sample sites were representative of quality throughout the system as well as defining the repeat sample site locations in the event of a positive routine sample.  The updates to the sample site plan for most systems should have been done already but the webinar will go through them as well other sampling requirements.

The webinar will conclude with some common issues that have been found since the implementation of the RTCR.

About the Presenter

Steve Attema graduated from South Dakota State University with a Bachelor of Science Degree in Civil and Environmental Engineering.  After earning his degree, Steve worked at Bolton & Menk, a consulting engineering firm in Mankato, MN where he was involved design and inspection of water and wastewater systems.  Steve then transitioned to operations where he managed an Industrial Wastewater Treatment Facility near Sioux Falls, SD.  Steve currently is a training specialist at South Dakota Rural Water where he conducts safety and water system training as well providing technical assistance to many water systems.  Steve has given many presentations regarding the Revised Total Coliform Rule and worked with the state primacy agency in helping systems comply with the rule.  He has also consulted with several water systems including updating sample site plans, proper sampling techniques, chlorine residual testing, public notification and more.

NRWA Grateful for Congressional Appropriations Providing Robust Funding to Support Rural Water Infrastructure

The National Rural Water Association (NRWA) is grateful for the beneficial support of Congress with its recent approval of robust funding levels targeted to rural America. These appropriations will provide much needed assistance to rural water infrastructure through the U.S. Department of Agriculture’s (USDA) rural water and economic development initiatives.

“Rural and small-town USA are very grateful to Congress in recognizing the unique success of this initiative. Over the last 70 years, through the funding provided by Congress, USDA’s rural water initiatives have made great advancements in the standard of living in Rural America,” NRWA CEO Sam Wade said. “These rural water infrastructure initiatives have been the engine of economic development and agricultural-related advances in rural communities, and they have provided for dramatic improvements to the environment and public health.”

In March 2018, Congress provided the largest annual appropriation in history to the USDA rural drinking water and sewer infrastructure programs of $1,060,000,000. This level is almost double the total amount provided in the previous year. The Appropriations Committee also provided Rural Development the maximum flexibility to use the $1.060 billion to support billions of dollars in direct loans and over $950 million for grants targeted to eligible rural utilities. The current backlog for the USDA Water and Sewer Loan and Grant program is approximately $3 billion in applications. This funding and flexibility provided is more than adequate to address the entire current backlog.

Congress has just begun the fiscal year 2019 appropriation process and the initial efforts by both the House and Senate provide continued support to address rural community’s water and waste water needs as follows:

  • On May 16, 2018, the House of Representatives Appropriations Committee approved the USDA fiscal year 2019 budget bill including $637,690,000 for USDA rural water infrastructure.

  • On May 24, 2018, the Senate Appropriations Committee approved their version of the USDA budget bill including $958,183,000 for USDA rural water infrastructure.

“We worked hard to craft a strong agriculture funding bill that provides our small rural communities, farmers and ranchers with the resources they need to overcome the challenges they face in farm country,” said North Dakota Senator John Hoeven, Chairman of the Agriculture Appropriations Subcommittee. “This bill makes responsible investments in critical farm service programs, agricultural research and rural development programs to reaffirm our commitment to growing rural America.”

“USDA’s rural water loans and grants are essential to helping rural communities overcome the limited economies of scale and low median household incomes to provide safe and affordable drinking water and sanitation. The initiative funds construction and expansion of drinking water and wastewater infrastructure through grants and loans provided at reasonable rates and terms. Without this assistance, many communities would not have the means to construct new water systems, expand existing systems, or comply with federal mandates,” stated Steve Fletcher, NRWA President and Manager of the Washington County Rural Water Company in Nashville, Illinois.

Most U.S. water utilities are small. More than 91 percent of the country’s 50,259 drinking water systems serve communities with fewer than 10,000 people, and approximately 80 percent of the country’s more than 14,500 wastewater systems serve fewer than 10,000 people.

“We want to acknowledge both the House and Senate and especially the Appropriations Committee members for recognizing the need to increase in investments in Rural America to maintain and upgrade the Nation’s aging infrastructure,” Wade expressed, “Because of this continued support millions of rural Americans have access to affordable and safe public water that their parents did not have and thousands of rural communities have public sewer or wastewater systems that have allowed for elimination of millions of questionable septic tanks, cesspools, straight pipes, or worse. “

Assistant Administrator Helps Open 2018 NRWA In-Service

TULSA, Okla. – Over 400 Rural Water staff from across the U.S. gathered in Tulsa, Okla. as the National Rural Water Association opened their annual in-service training on June 5. This annual event provides the training and education necessary for Rural Water staff to remain the foremost experts in the water industry.

“This is one of my favorite meetings,” said NRWA CEO Sam Wade, “because this meeting is about improving ourselves.”

Edna Primrose, USDA Rural Utilities Service Assistant Administrator for the Water and Environmental Program spoke at the opening session.

Training covers all aspects of rural water, including association management, marketing, accounting and technical assistance. Technical training focuses on improving the assistance provided to utilities through the drinking water, wastewater and source water protection programs.

Rural Water Loan Helps Village Replace Meters, Eliminate 40% Water Loss

Rural Water Loan Fund

Want to learn more about the Rural Water Loan Fund? Read more in the upcoming August issue of Rural Water magazine or Click Here

BARODA, Mich. – The Village of Baroda was leaking cash – the utility was losing between 20 to 40 percent of their treated water and the cost was financially unsustainable. A low-interest loan from the National Rural Water Association’s Rural Water Loan Fund is helping replace the community’s aging water meters and bring their water loss under control.

“We decided we needed to do something,” said Baroda Clerk Tina Boehm. “We were losing too much water.”

Research identified the village’s aging water meters as the primary cause of the massive water loss.

“Most of the meters are over 25 years old and they are very inaccurate,” Boehm said.

Several of the meters were originally installed when the utility was constructed, over 30 years ago. Baroda saw an opportunity to replace their aging infrastructure and make necessary changes, like adjusting the water rates.

“We thought it made more sense to do it all at once instead of piecemeal,” Boehm said. “We also decided to restructure our rate system. There hadn’t been any changes for several years.”

Baroda first learned of the Rural Water Loan Fund from John Holland, a Circuit Rider with the Michigan Rural Water Association. The program’s low interest and lack of fees would make the meter replacement affordable to a utility that had been losing money due to water loss for years.

“The loan made this project affordable,” Boehm said.

Once the community started the loan process, they learned that it was a fast, easy way to meet their financial needs.

“It was a very simple process and it was very easy working with NRWA,” Boehm said. “They made the loan process very smooth and easy.”

Baroda has completed 85 percent of the meter replacement and it has reduced water loss down to 5 percent.

“It’s been incredible,” Boehm said. “Our water loss has improved dramatically. It’s helping us cover our operations and put some money back into the bank.”

Rural Water Rate Study Puts Town on Path of Stability

NORWOOD, N.C. – The Town of Norwood, N. C. was faced with the costs of servicing the new debts required to upgrade their water and wastewater system, but a rate study by the North Carolina Rural Water Association put the community on track to sustainability.

“The town had recently taken on additional debt because of some big projects,” explained NCRWA Management Circuit Rider Marty Wilson. “They didn’t have to reserves to pay for those projects, so they had to finance them with loans.”

Norwood’s past practice was to set rates to cover the basic operations and maintenance expenses but did not budget for the cost of depreciation. This can leave systems without reserve funds when it’s time to replace equipment or make system improvements. Wilson’s rate study found that Norwood generated $1.3 million in revenues annually through water and sewer bill payments, but that total expenditures for water and sewer total $2.1 million. As a result, the remaining $800,000 shortfall had to be covered from other areas of the town budget.

“Over a period of years, they hadn’t increased their rates,” Wilson said. “They were gradually getting further and further behind.”

It’s a common problem for water utilities, because of the costs of treating water and the political pressure of town councils to keep rates low.

“It’s the rule, not the exception,” Wilson said. “I’ve done hundreds of rates studies and the vast majority of towns I’ve studied are in the same situation. They have artificially low rates and have not funded the future capital projects necessary to maintain the system.”

Norwood’s Town Administrator John Mullis first learned of North Carolina Rural Water’s rate studies from Terry Greene, a NCRWA Circuit Rider that had been assisting them with water operations.  Wilson was conducting a rate study in Denton, N. C. and offered for Mullis to observe the process and attend a presentation to the Denton Town Council.

“After he came along and saw the process, he was very in tested in a rate study for Norwood,” Wilson said.

Wilson began reviewing Norwood’s financial and operational records.

“My goal is to simplify the process,” Wilson said. “Council members are not usually water professionals or accountants.”

Wilson begins by computing the cost of water service, operation and maintenance costs, debt service and capital costs.

“The service they are providing to their citizens has coast,” Wilson said. “So, have to find the true cost of that service. Then we can calculate the rates needed to provide that service.”

Wilson and Greene presented the results of the rate study to the Norwood town council. In his estimate, a 63 percent rate increase was needed to immediately to correct the shortfall. The town’s “declining block” rate structure was also cited as a reason several utilities grant applications the town has submitted have been rejected. Under the declining block structure, the per-unit price of water decreases as water consumption increases, and as such does not reward water conservation, a key component in scoring of such grants.

“How do most other towns and cities handle adjusting rates?” asked Commissioner Robbie Cohen.

“This can’t be done overnight,” Wilson said. “Every town is different, and there is no ‘one size fits all’ approach.”

After discussion, the town council voted to end the declining block rate structure, to make a 15 percent rate increase and to schedule yearly increase until the rates can meet Norwood’s financial needs.

“I was extremely impressed with the Norwood council,” Wilson said. “It was a shock – they realized they were behind, but they didn’t know how far. But they didn’t hesitate to address the problem. Once they had the information they needed, they were very proactive.”

Rural Water Sewer Cam Helps Locate Blockage

GRANVILLE, N. D. – When the Community of Granville couldn’t locate a sewer blockage that was causing sewage backups for residents, they contacted the North Dakota Rural Water Systems Association.

“We jetted the main, but the contractor hit a dead end and couldn’t go any further,” explained Granville System Operations Specialist Paul Rosencrans. “We requested Rural Water bring the sewer camera just to see what was going on.”

Sewer jetting uses high-pressure water sprayers to high-pressure water jets to clear obstructions in residential and commercial drain pipes as well as larger municipal sewer systems. The jetting removed some ice frozen in the sewer but didn’t solve the backup problems.

“The customer on the end of the line was still having sewer problems,” said Les Sigette, a NDRWSA Wastewater Technician. “I brought the association sewer camera to try to find the obstruction.”

The sewer camera uses cables and a rolling mount that moves through pipes, transmitting and recording video of any possible obstructions. He started moving the camera through the sewer main at the nearest manhole.

“About 10 feet down we found some misaligned tile,” Sigette said. “It wasn’t severe enough to cause the blockage, though.”

A few feet farther, Sigette found the dead-end obstruction that the sewer jetting could not remove.

“The residential sewer line was shoved in completely through the main to the other side,” he said. “I’ve seen pipes shift before, but I’ve never seen it go all the through the city sewer main.”

It’s uncertain what caused the pipe to shift, but Sigette suspects it moved when the ground thawed and shifted. The line will have to be dug up and reinstalled with a saddle to prevent separation. Sigette’s assistance helped the community quickly locate the source of the problem and begin working on solutions, something that would not have been possible without rural water assistance.

“His knowledge and his equipment were very helpful,” Rosencrans said of Sigette. “It’s great that Rural Water is there to help us.”