Do you still need a reason to clean your water storage tanks

Sediment on the floor of your water storage tank is a Breach in your system. The more sediment you have in your water storage tanks the bigger your risk for having a water-related contaminant issue. Tank sediment builds up over time and can provide a wide range of contaminants including viruses a way to get a foothold in your water system. The tank sediment can provide a safe habitat allowing a small number of bacteria or viruses to quickly grow into the billions.

The Centers for Disease Control and Prevention recently released a guidance and fact sheet on transmission of the novel coronavirus in water.

THE GOOD: The agency stated: “Conventional water treatment methods that use filtration and disinfection, such as those in most municipal drinking water systems, should remove or inactivate the virus that causes COVID-19.”

THE BAD: The fact is other viruses are found in drinking water, in fact you will find them in the top ten contaminants. Including Hepatitis A, a vaccine-preventable, communicable disease of the liver caused by the hepatitis A virus (HAV), and Norovirus. A very contagious virus that causes vomiting and diarrhea. Conventional water treatment methods should also prevent these viruses from contaminating drinking water systems but they remain in the top ten of drinking water-related contaminants.

Here is the top ten list of Water-related Diseases and Contaminants the CDC found in in Public Water Systems.

The United States has one of the safest public drinking water supplies in the world. Over 286 million Americans get their tap water from a community water system (1). The US Environmental Protection Agency (EPA) regulates drinking water quality in public water systems and sets maximum concentration levels for water chemicals and pollutants.

Sources of drinking water are subject to contamination and require appropriate treatment to remove disease-causing contaminants. Contamination of drinking water supplies can occur in the source water as well as in the distribution system after water treatment has already occurred. There are many sources of water contamination, including naturally occurring chemicals and minerals (for example, arsenic, radon, uranium), local land use practices (fertilizers, pesticides, concentrated feeding operations), manufacturing processes, and sewer overflows or wastewater releases.

The presence of contaminants in water can lead to adverse health effects, including gastrointestinal illness, reproductive problems, and neurological disorders. Infants, young children, pregnant women, the elderly, and people whose immune systems are compromised because of AIDS, chemotherapy, or transplant medications, may be especially susceptible to illness from some contaminants.

Top 10 Causes – Outbreaks in Public Water Systems*
Giardia
Legionella
Norovirus
Shigella
Campylobacter
Copper
Salmonella
Hepatitis A
Cryptosporidium
E. coli, excess fluoride (tie)

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Source: CDC https://www.cdc.gov/healthywater/drinking/public/water_diseases.html

Why Isn’t ChlorineTreatment Enough?

I had some water utility workers ask me, “Why isn’t chlorine treatment of potable water enough to keep water safe? Why should we worry about cleaning tanks when we already use chlorine?”

Chlorine works great as long as there is not a breach in the tank. When there is a breach like a hole in the top that lets birds and insects inside the tank, the chlorine can not keep up. This is why annual tank inspections are so important. People have died from this scenario, see: “Salmonella Outbreak in Alamosa, Colorado“. According to USEPA officials a sediment build up on the interior floor of a water storage tank is another type of breach. Bacteria like Legionella, protozoa like Cryptosporidium, and a wide range of viruses including Norovirus can hide and GROW in the tank sediment.

Do you know what the #1 cause of municipal water contamination is? According to the CDC it is a microscopic parasite called Giardia. The sediment becomes a perfect habitat providing both shelter and food for Giardia and many other microorganisms to grow. In time, the contaminants can reach a point where they overwhelm chlorine or any other disinfectant you may be using. Keeping tanks clean keeps your drinking water safe.

Giardia- Photo CDC website

Giardia- Photo CDC website

Top 10 Causes – Outbreaks in Public Water Systems*

For a complete listing of water-related surveillance data, see CDC’s Surveillance Reports for Drinking Water-associated Disease & Outbreaks.

A professional potable water Dive Crew can remove tank sediment along with everything that is growing in it with minimal water loss.  The diver is sealed in a DRY suit so there is no human contact with the water supply.  He can then enter the tank and make quick work of removing tank sediment and any contaminant that may be hiding in it.  Give us a call toll free at 1-888-481-1768 for a free quote.

For more information on Municipal Water Tank Cleaning see: Ron Perrin Water Technologies web Site: www.rpwt.us.

Content source: Centers for Disease Control and PreventionNational Center for Emerging and Zoonotic Infectious Diseases

Water Tank Inspection – Shopping for a Potable Water Tank Inspector? Think about This-

Here are a few things to consider when shopping for a contractor to perform work in a potable water storage tank.

  1. Look for a specialist
  2. Check photos on their web site
  3. Check references
  4. Require an insurance certificate
  5. Proper training for employees performing work

Specialist: We live in an age of specialist.  As a rule Specialist know their topic inside and out.  When contracting a company to enter your potable water system it is better to deal with a contractor who is focused on entering potable water systems.  Companies who do nothing but service potable water systems are more likely to have equipment only used in potable water system.  Specialist in potable water work are also more likely to have disinfection procedures and a disinfection solution that meets AWWA standards.  When it is your business to do it you are just more likely to do it right.

Photos: No matter what you see on advertisements, or told on the phone, a quick check of a companie’s web site can quickly show you what their focus is on.  Many diving contractors are simply focused on Diving.  Potable water diving may just be one of the things on their long list of things they do to make money diving.  If the photos on their web sight show diving in lakes, rivers, and streams you need to trust them to somehow clean their equipment enough to enter your water system.  Like they say, a photo is worth a million words. Some contractors say they have reserved equipment they only use in potable water.  However, the photos on their own web site may show they actually use the same gear to do all diving services.  If you can find a company that specializes in potable water diving, the photos on their web site should confirm that claim, not dispute it.

References:  If a company has been working for more than a week or two, they should have references.  Ask for a list of customers that you may be allowed to contact.  Another way to check references is by looking at their company Facebook page, or the owner’s linked-in page.

Insurance:  Ask for a certificate of insurance sent from the companies insurance agent. Do not accept a certificate sent directly from the contractor. It is just too easy to change dates or fabricate the certificate from scratch.  Make sure the contractor has Liability, workers comp and commercial auto.  While they are all important, the workers comp may be the most difficult and expensive for the contractor to acquire.  Climbing and diving into potable water storage tanks and towers is “high risk contracting” by any measure.  If an accident occurs, and the contractor is not covered by his own workers compensation insurance, the customer will be liable for the injured employee.

Training:  High risk contracting may only be done safely if the contractor has required before employment, or taken the time to send each and every employee on the job site proper training.  The majority, if not all diving contractors, require that divers have diving certifications before employment is offered.  Beyond dive training, employees should also have documentation showing they have had both Confined Space and Fall Protection training.

20180207_111442

Photo:  Len Pardee is the Lead Tank Inspector for Ron Perrin Water Technologies.  Len has a degree in Environmental Engineering from Syracuse University. He is retired from the USEPA where he served for 34 years.  Among other posts while at the USEPA, Len was the Chief of the Region 6 Water Division for several years.

At Ron Perrin Water Technologies we take time to make sure the inspectors we send out to perform inspections have the right gear, insurance coverage and training to safely do your inspection or cleaning both efficiently and safely.  By using a state-of-the-art  under- water video camera and lighting system, we are able to collect all the information we need to produce your inspection report  while the tank remains in-service. In addition to the underwater video, our reports also feature dozens of high quality digital photos covering all AWWA inspection points.  Our innovative inspection methods have been refined by Ron Perrin since 1997 and are featured in a class he instructs for the Environmental Training Institute at UT Arlington.  Information on the course may be found at the ETI Website See WTR308 Water Tank Inspection Techniques

For more information see www.rpwt.us. For a water tank inspection or cleaning quote call Debi at 817-377-4899 or e-mail tankinspections@aol.com.

 

Cleaning Water Storage is Important

This Is Why We Clean Tanks.

Top 10 Causes of Contamination Outbreaks in Public Water Systems according to the Center for Disease Control (CDC).

  • Giardia
  • Legionella
  • Norovirus
  • Shigella
  • Campylobacter
  • Copper
  • Salmonella
  • Hepatitis
  • Cryptosporidium
  • E. coli, excess fluoride (tie)

Bacteria, protozoa, invertebrates and viruses all love heat. The last few years we have continued to see record-breaking heat waves again and again. Keeping water distribution tanks clean should become more of a priority. Several of the top ten water system contaminants listed by the CDC can use the soft sediment that builds up on the floor of water storage tanks as a habitat to grow and become a public health problem. Removing sediment removes the habitat that contaminants can use for food and shelter allowing rapid growth. Keep your tanks clean with potable water diving services from Ron Perrin Water Technologies call 817-377-4899.

Out-of-sight and out-of-mind, sediment in a water storage tank can hide a wide range of contaminants. Keeping the tanks clean will help you maintain a safe water system and meet water quality standards.  Take a quick look at what we keep out of your water storage tank by removing accumulated sediment. All potable water storage tanks should be on a cleaning schedule, is yours?  You do not want to drink these guys! www.rpwt.us

giardia-bannerGiardia – Photo CDC Website

Cryptosporidium                                                                        Cryptosporidium

 

Legenella CDC-illustration.jpgLegionella – Illustration from CDC website.

Give us a call at 817-377-4899 for in-service water tank inspection or cleaning services.

Ron Perrin Water Technologies – see more at our web site: www.rpwt.us 

 

 

Diver Wanted

ESTABLISHED WATER TANK AND TOWER INSPECTION AND CLEANING COMPANY is seeking a commercial diver. CURRENT SCUBA certification and recent diving physical is required, preference given to ADC certified line air divers. We have a full time opening working out of our Main Office in Ft Worth, Tx. This position requires frequent out of town travel (2-5 days a week, often work on a 4 day work week with 3 days off). A valid Drivers license and good driving record is required. For additional information and application see: http://www.ronperrin.com/employment.htm. FOR INTERVIEW Call our Office Manager Debi at 817-377-4899.

Job Type: Full-time

Salary: $140.00 /day

Job Location:

  • Fort Worth, TX 76108

Out of Sight, Out of Mind: What’s in Your Water?

Out of Sight, Out of Mind: What’s in Your Water?  is a documentary where microbiologists and tank inspection professionals discuss the importance of having potable water storage tanks inspected and cleaned regularly. Currently the Environmental Protection Agency (EPA) has no regulations that require potable water storage tanks to be cleaned. We are hoping to raise awareness of this issue in order to change that.

We have been working on this project for over two years and it it time to raise some cash to finish it up.  I hope you will be a part of this, please click here and find out how you can help!  https://igg.me/at/whatsinyourwater/x/11623864