Featured Video: Flow Meters for Water and Wastewater Applications

With the wide variety of flow meters available these days, problems with flow measurement can sometimes be traced back to having the wrong technology for the job. It is important, then, for those who have their feet on the ground at the plant to know the options available.

You’ll need to consider: is closed pipe or open channel the right solution? What is the right technology to use once I have decided on open or closed pipe? What are the total maintenance costs involved with each of the decisions? This 43-minute video presents typical water and wastewater applications and flow meter solutions. It reviews theory of operations and application details to help you select the correct flow meter technology. Because, as they say, in order to manage it, you have to measure it!

Featured Videos: Invisible Heroes, Minnesota's Drinking Water Providers

This week's featured videos are part of a new series produced by the Minnesota Department of Health showcasing the "invisible heroes" of Minnesota's drinking water supply. In these 3-minute videos, small town water system heroes face and overcome a variety of challenges including contamination, source water shortages and aging infrastructure in order to provide safe, reliable water for their communities. Three of the videos feature small or very small water systems and the innovative strategies and partnerships they have developed to overcome their challenges. 

The first video looks at how the tiny community of St. Martin (pop. 350) has become the first town in the state with a biologically active treatment plant in order to effectively respond to high levels of iron and ammonia in their water. 

The next video explains the unique wellhead protection program developed by the City of Worthington, MN (pop. 13,000). In order to protect the City's drinking water wells from contamination, the city, along with partner Pheasants Forever, created the Worthington Wells Wildlife Management Area. 

And finally, here is a video about how the small city of Fairmont, MN (pop. 10,000) sprang into action when faced with increasing nitrate levels. 

Free Test Prep Training Resources for Operators

Are you looking for FREE resources to help you study for upcoming certification/recertification or certification upgrade exams? Are you looking for ways to gain or deepen your knowledge about O&M issues, new treatment technologies or distribution strategies? Look no further! WaterOperator.org has a whole collection of up-to-date, helpful small system manuals and training materials to help you, whatever the reason. Check out these recent finds:

• Basics for Small Water Systems in Oregon Manual - This 155-page manual from the Oregon Health Authority provides a series of fact-sheets of essential information and considerations for small system operators in Oregon. Fact-sheet topics include: Basic Responsibilities of Water Suppliers, Drinking Water Source Protection, Identifying and Correcting Significant Deficiencies, Identifying and Resolving Cross-Connections, Sampling & Reporting, Sampling and Reporting Requirements for Small Groundwater Systems, Public Notice Requirements, Consumer Confidence Reports, Overview of Disinfection and Other Water Treatment Methods, Shock Chlorination, Leak Prevention & Repair, Facility O & M, Storage Tanks and more.

• Surface Water Treatment Operator Certification Manual - This 321-page certification manual from the Kentucky Department of Environmental Protection provides operators with the basic knowledge required to manage surface water drinking water systems. This manual provides 15 chapters of the surface water treatment operator certification course.

• Wastewater Treatment Plant Operator Certification Manual - This 261-page certification manual from Kentucky Department of Environmental Protection provides operators with the basic knowledge required to manage drinking water systems. The manual is comprised of 10 chapters concerning wastewater treatment plant operation and maintenance. Topic include: the Certified Plant Operator, KPDES Permitting Program, Biology, Preliminary Treatment, Physical & Biological Treatment Processes, Digesters, Disinfection, Flow Measurement, Pumps and Motors, Hazards and Regulations.

• Introduction to Small Water Systems: A Course for Level I Operators, Chapter 1. - You can find all 13 chapters of this course on the Alaska Department of Environmental Conservation website. Chapter topics include Introduction to Distribution Systems, Basic Electricity and Motor Controls, Regulations and Monitoring, and Waterworks Math. 

• Introduction to Water & Wastewater Treatment Technology - This course from Mountain Empire Community College includes 19 lessons tracing the flow of water from the source through treatment, storage, distribution, use, waste collection, treatment and discharge back into the environment.

• The WaterSifu website - This website's moto is "turning ordinary water workers into water black belts" and includes 28 free podcasts, a companion guide, YouTube videos, and more. Created by a water operator, this is a fun go-to resource for studying to pass your water treatment or distribution exam. One helpful video points out the six most common mistakes people make that stop them from passing their state water treatment/distribution exam.

• New Mexico Water Systems Operator Certification Study Manual - This manual from the New Mexico Environment Department Utility Operator Certification Program provides study materials up to the Class 4 level of Water Certification. Chapters include Fluoridation, Distribution, Disinfection, Safety, Mathematics, Water Storage and more. 

• New Mexico Wastewater Systems Operator Certification Study Manual - This manual was created as a tool to assist wastewater systems operators in New Mexico in preparation for taking the New Mexico Collection Systems Operator, Small Wastewater Systems Operator, and Wastewater Systems Operator certification exams.

• Class A Training Manual for the Ohio Wastewater Treatment Certification Exam - This 182-page training manual from the Ohio EPA can assist you in becoming proficient in the operation and maintenance of a small wastewater treatment system. Specifically, this training material will focus on the effective operations and maintenance of the extended aeration activated sludge treatment system commonly referred to as a “Package Plant”. The concepts and information presented in this training material have been identified by other successful certified operators of package treatment systems as critical in producing clean water acceptable for discharge into your local waterways; your environment.

• Five Common Questions on Water Treatment Operator Exams - Questions on drinking water regulations, pumps, chlorination, and lab procedures almost always appear on the test. This video covers these questions to better prepare you for the exam. The video is for operators in the earlier stages of their career, such as the first two certification levels. If you’re at a more advanced level, then this video might simply be a review for you. Other test prep videos from this website include: Water Distribution Operator Certification Exam: 4 Practice Problems and Wastewater Treatment Operator Certification Exam: 4 Practice Problems.

For more certification prep resources, visit our document database and search by the category Certification/Exam Prep. Try narrowing it by your state, or search by "distribution", "drinking water treatment", "wastewater", or "collection system" depending on the kind of exam you're preparing for. (Search without the quote marks though, because they confuse our database!).

Featured Videos: Onsite Wastewater Systems

According to the US Census Bureau, one in four homes in the U.S. is served by an onsite wastewater system. Our first featured video this week explores some of these onsite options and then explains in simple terms how each of these systems work in different soil conditions and what it takes to maintain them. In the end, the video shows how the cost-effectiveness of septic systems can often more than outweigh the cost of a centralized system for many smaller communities. 

Wondering how to find the funding to get these types of decentralized systems off the ground? Our second video this week explores how innovative partnerships and Clean Water State Revolving Funds can be used for exactly these kinds of projects.

WaterOperator.org Staff Interviews Illinois Small Systems

The Trouble With Salt

A recent U.S. Geological Survey report and a new university study both find that many U.S. waterways are becoming increasingly salty, contributing to corrosion in public water distribution systems in systems of all sizes across the country. Areas in the snowy northern U.S are particularly vulnerable because of road salt use, while in the Midwest, certain fertilizers with high potassium content play an additional role. If left untreated, salty water can accelerate corrosion of lead-containing pipes and joints, and can potentially release lead into drinking water.

So what is a small water system to do? Because water treatment options for salt are expensive and complicated, it makes sense to first coordinate with your public works staff to identify opportunities to reduce salt use using proven BMPs. This new web-based tool from Minnesota Pollution Control Agency can help winter maintenance organizations maintain performance while reducing salt use and saving money. This tool works for any location where road salt is used as a de-icer. In addition, this factsheet from New Hampshire's Department of Environmental Services includes a concise listing of recommendations to follow for application of road salt. And finally, this recent Washington Post article suggests applying brines and different salt compounds, along with upgrading salt-spreading equipment and developing better land-use strategies.

It also makes good sense to involve your customers, since 45-50 percent of road salt sources come from private roads and parking lots. Here is an example of a handy postcard that can be distributed in your community with simple rules for protecting clean water.

More than $36 billion is spent annually in the U.S. on corrosion control to reduce lead and copper in our tap water, according to the National Water Quality Monitoring Council. Reducing the detrimental affects of salt can only help mitigate this cost, while protecting public health and our valuable drinking water supplies.

Featured Video: What It Takes To Replace A Lead Service Line

Whether your utility is considering, or actually implementing, a lead service line replacement program, this 5-minute video can help you visualize the process involved. Join Water Distribution Supervisor Mark Schweiter, from the City of Galesburg, IL, in the trenches (literally!) to learn, step-by-step, what it takes to replace a lead service line.

This video can also be shared with homeowners, local officials, community groups and other stakeholders to achieve a common understanding of the equipment, personnel, labor and costs associated with replacing lead pipes. To find out more about the City of Galesburg's Lead Service Line Replacement program, including infographics, location maps and factsheets, click here.

The Problem With PFCs

There certainly has been lots of buzz over the scope and extent of perfluorinated chemical (PFCs) contamination of drinking water lately. A Bloomberg Environment analysis of EPA water contaminant data found 65 water utilities in 24 states and territories had at least one sample that came back above the threshold for these chemicals. Altogether, these utilities serve more than six million people. According to one Center for Disease Control official, the presence and concentrations of these chemicals is "one of the most seminal public health challenges for the next decades."

So what do we know about PFCs, then? PFCs are a family of synthetic chemicals used in a wide variety of products such as textiles, packaging, and cleaning products and are also additives in coating/plating processes. One of their most significant uses has been as a compound in firefighting foams used to put out jet fuel fires. In fact, most of the communities dealing with this contamination are ones that rely on groundwater and are located near military installations or airports.

Although scientists are still studying the link between PFCs and certain health issues, some research suggests that exposure to these chemical compounds can cause cancer, and/or liver, thyroid, pancreatic, kidney and fertility problems, among other things. Moreover, PFCs are stable in the environment and resist degradation, allowing them to seep out of underground storage tanks and build up in the bodies of animals and humans.

While the U.S. EPA has issued health advisories of 70 parts per trillion (ppt) for PFCs in drinking water, it is still evaluating health effects before taking any further action. These advisories are designed to provide drinking water system operators, and state, tribal and local officials who have the primary responsibility for overseeing water systems, with information on the health risks of these chemicals, so they can take the appropriate actions to protect people. But just exactly who will pay for these actions, or how the money will be located in the first place, is undetermined. The Seattle suburb of Issaquah, WA, for example, has already paid $1 million to install filters on its wells, and unless income can be generated from legal claims, this will certainly affect their customers' water bills.

Earlier this year, U.S. Senator Shaheen (D-NH) introduced the Safe Drinking Water Assistance Act, bipartisan legislation that will help expedite the analysis of PFCs, and provide resources to states dealing with the health challenges posed by these potentially harmful substances. And last week, the President signed H.R. 2810 which includes an amendment for a nationwide health study to be conducted by the CDC on the implications for PFCs in drinking water. In addition, some states, such as Michigan, are creating multi-agency response efforts to address this rapidly evolving public health issue.

If you need more information about PFCs, a good place to start is this EPA website or video. In addition, EPA has published a new fact sheet entitled “Protecting Public Health & Addressing PFAS Chemicals,” to provide basic information to the general public. And the AWWA has its own fact sheet on the prevalence and assessment of perfluorinated compounds in drinking water, as well as this listing of resources for identifying and managing PFCs.

Featured Video: Water Exam Success

Study Investigates Water Affordability