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Posts Tagged ‘Potable water tank inspection’

CBS 11 i-Team watches as my company inspects and cleans a north Texas water tower.

November 20, 2014 Leave a comment

November 7th, 2014, Ginger Allen and the CBS 11 i-Team watches as my company inspects and cleans a north Texas water tower. The tower was cleaned as a normal maintenance procedure. A light- brown dusting of sediment was removed from the interior floor before it could get deep enough to support bacteria and become a problem.   OLYMPUS DIGITAL CAMERA The tower was cleaned by a Commercial Diver who was trained at OCEAN CORP, Houston, Texas. The Diver is sealed in his own environment, then washed down with a chlorine solution. Because we specialize in the inspection and cleaning of Potable Water Storage Facilities, all of our equipment is purchased for, and only used in, potable water. This utility is doing a great job of maintaining their system. However, utility managers across the country struggle to get the funds to properly maintain their systems. The EPA is currently considering a regulation that would require all water storage facilities to be inspected and cleaned at regular intervals. This new requirement could improve the water quality for millions of Americans.

Ron Perrin Speaks to News Crew

Ron Perrin Speaks to News Crew

The EPA is taking comments on this proposed regulation until the end of the year. We have the contact information posted on our blog, or you can just take our poll at: www.cleanwatertankproject.com. The poll results will be turned in to the EPA at the end of the year.

CBS 11 I-Team Looks At What’s In Your Water Tower

 

 

Chick here to see video Video

http://launch.newsinc.com/embed.html?type=VideoPlayer/Single&widgetId=1&trackingGroup=69016&siteSection=ndn&videoId=28175822

The Written article is here:

http://dfw.cbslocal.com/2014/11/19/watertowers/http://dfw.cbslocal.com/2014/11/19/water-towers/

—–Photos taken by RPWT Office Manager Debi Wheelan

Robert Perrin on com bot talking to the diver

Robert Perrin on com bot talking to the diver

Find us on FACEBOOK  or connect with Ron on Linked-In AND PLEASE SHARE THIS POST AND THE CBS NEWS STORY WITH YOUR FRIENDS EVERYONE DESERVES TO HAVE CLEAN SAFE TAP WATER, Take the Poll at www.cleanwatertankproject.com and we can make this happen!

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Now we can add a brain-eating amoeba to the list of contaminants that can be in tank sediment

August 27, 2014 Leave a comment

By Ron Perrin

Removing sediment from the floor of your water tanks and towers may also be removing the habitat that allows bacteria, protozoa and viruses from getting a foothold in your distribution system. Now we can add a brain-eating amoeba to the list of contaminants that the sediment on the floor of your water storage tank can support.

Sediment being Removed from water storage tank

Sediment being Removed from water storage tank

September 16, 2013, NBC News reported: “Deadly brain amoeba infects US tap water for the first time”. The death of a 4-year-old boy near Violet, LA., was linked to the Naegleria fowleri amoeba. The child had been playing on a backyard slip-n-slide that used water from the St. Bernard Parish water system, that was later found to be contaminated with the amoeba. “Tests show it’s present throughout the water supply system in St. Bernard Parish, directly southeast of New Orleans.”

According to the CDC: “Naegleria fowleri (commonly referred to as the “brain-eating amoeba” or “brain-eating ameba”), is a free-living microscopic ameba, (single-celled living organism). It can cause a rare and devastating infection of the brain called primary amebic meningoencephalitis (PAM). The ameba is commonly found in warm freshwater (e.g. lakes, rivers, and hot springs) and soil. Naegleria fowleri usually infects people when contaminated water enters the body through the nose. Once the ameba enters the nose, it travels to the brain where it causes PAM, which is usually fatal. Infection typically occurs when people go swimming or diving in warm freshwater places, like lakes and rivers. In very rare instances,Naegleria infections may also occur when contaminated water from other sources (such as inadequately chlorinated swimming pool water or heated and contaminated tap water) enters the nose. You cannot get infected from drinking water contaminated with Naegleria.”

The CDC also tested nearby DeSoto Parish Waterworks Dist. #1 because it was the near the site of an infection that happened in 2011 from non-potable water (lake or river, etc.). On October 8, 2013, The CDC confirmed the presence of the rare amoeba in five locations in DeSoto Parish Waterworks Dist. #1.

Heat is also a factor, an increase in only ten degrees can double the speed of bacteria growth. As record high temperatures become more common in summer months we see that keeping water distribution tanks free of sediment build up may be more important than ever before. Removing the sediment from your water tank may prevent a disaster before it can ever start.

The new Revised Total Coliform Rule (RTCR) will be fully implemented in 2016. It requires assessment and corrective action when there are indications of coliform contamination. The RTCR no longer includes a monthly maximum contaminant level violation for multiple total coliform detections. Instead, systems that have indicators of coliform contamination in the distribution system must assess the problem and take corrective action.  Well documented tank inspections should be part of assessing your problem.  If there is sediment build up in the tank, cleaning would be a logical corrective action to take.

The fact is, keeping your tanks clean may also prevent you from getting an RTCR violation in the first place. What we have found is this: Once the sediment is removed, our utility customers discover that chlorine costs are reduced because the chlorine is no longer losing the war with the microbes that were growing in the sediment.

However you choose to do it, just get it done. Do not let it go year after year, out of sight and out of mind.   Knowing what is in your facilities with a good inspection is your first line of defense.  If an accumulation of sediment is found, don’t think of it as “just a little dirt.” Know that it is a broken barrier that can allow contaminants to compromise the entire water supply and the health of the community

About the Author:
CSHO LOGORon Perrin is a Certified Safety and Health Official (CSHO), a member of the Texas Water Utilities Association, AWWA,

Ron Perrin Owner of Ron Perrin Water Technologies

Ron Perrin Owner of Ron Perrin Water Technologies

and the owner of Ron Perrin Water Technologies in Fort Worth, Texas. Since 1997 his company has inspected over seven thousand water storage tanks and towers in 14 states. Ron may be contacted through his web site at http://www.ronperrin.com.
Or contact RPWT Office Manager Debi Wheelan:
tankinspections@aol.com

Call: 817-377-4899

Fax 817-246-1740

The EPA is considering New Rules for tank Inspection & Cleaning

July 26, 2010 Leave a comment

On July 14th 2010 the The U.S. Environmental Protection Agency  Posted this notice under / Proposed Rules

2. Storage Tank Inspection and Cleaning

EPA requests comment on the value and cost of  periodic storage tank inspection and cleaning . There are instances of storage tanks being the source of waterborne disease outbreaks at PWSs. In December 1993, aSalmonella typhimurium outbreak in Gideon, Missouri resulted in over 600 people affected by diarrhea, 31 cases of laboratory-confirmed salmonellosis and seven deaths of nursing home residents who had exhibited diarrheal illness (four deaths were confirmed by culture). The larger of the two storage tanks had a breach in the roof hatch that allowed pigeon droppings to be carried into the tank and likely accumulated in the several inches of sediment. This contaminated sediment, more than likely, was pulled into the distribution system by a flushing program that  drained the tank (Clark et al. 1996). Salmonella typhimuriumwas isolated from the sediment of one of the towers, and tap water tested positive for fecal coliforms (CDC 1996). In March 2008, Alamosa, Colorado (with a population of about 9,000 people) experienced a waterborne disease outbreak associated withSalmonella. The report released by the Colorado Department of Public Health and Environment (Falco and Williams 2009) indicated that the outbreak resulted in 442 reported cases of illnesses, 122 of which were laboratory confirmed, and one fatality. The State epidemiologist estimated that a total of 1,300 people may have been ill. Two storage tanks in Alamosa had several inches of sediment and breaches; one tank had breaches large enough for birds and animals to enter. Some of the key factors that contributed to these two outbreaks include significant levels of sediment (several inches to feet) and the presence of breaches of the integrity of the storage tank. Sediment accumulation occurs within storage facilities due to quiescent conditions which promote particle setting. Over time sediment continues to accumulate in a tank, even if the finished water is consistently treated tobelow 0.1 nephelometric turbidity unit(NTU). For surface water systems, it isnot uncommon to have 1⁄4 to 1⁄2 inch or more of sediment accumulate after two to three years (Kirmeyer et al. 1999).

While there are no turbidity regulations for ground water systems (except for ground water under the direct influence of surface water (GWUDI)), the levels of turbidity can be significant in the water pumped from an aquifer. Sand particles, if allowed to accumulate, provide pore spaces that house diverse populations ofbiota (which may include pathogenic microorganisms) (Kirmeyer et al. 1999; van der Kooij 2003). Periodic high flows in the storage tank may scour, stir up, and suspend the sediment (along with entrapped bacteria and pathogens) and carry it into the distribution system, with greater accumulation of sediment being a more significant concern. Other water quality problems associated with sediment accumulation include increased disinfectant demand and disinfection byproduct formation. The storage tank’s vulnerability to contamination increases when breaches of the storage tank allow insects, animals, and birds and their associated diseases to enter. Contamination from bird and other animal excrement can potentially transmit disease-causing organisms to the finished water.  Waterfowl, for example, are known carriers of many different waterborne pathogens including Vibrio cholerae(Ogg et al. 1989). Based on the potential public health implications associated with poorly maintained storage tanks (e.g., as indicated by significant sediment accumulation and breaches), EPA is interested in receiving comments and supporting information regarding the state and condition of tanks that have been cleaned and inspected, costs of storage tank inspection and cleaning, and how public health can be better protected. EPA requests information on whether there are States that recommend or require periodic inspection and cleaning of storage tanks. If so, what are the requirements, the frequency of inspection and cleaning, and how successful are they? Are inspections and cleaning done by individual PWSs or by contractors?

DATES: Comments must be received onor before September 13, 2010.

ADDRESSES: Submit your comments, identified by Docket ID No. EPA–HQ–OW–2008–0878, by one of the following methods:

• Federal eRulemaking Portal: http://www.regulations.govFollow the on-line instructions for submitting comments.

• Mail:

Water Docket, Environmental Protection Agency, Mailcode: 4101T, 1200 Pennsylvania Ave., NW., Washington, DC 20460, Attention

Docket ID No. EPA–HQ–OW–2008–0878. In addition, please mail a copy of your comments on the information collection provisions to the Office of Information and Regulatory Affairs, Office of Management and Budget (OMB), Attn: Desk Officer for EPA, 725 17th St., NW., Washington, DC 20503.

Responsible for a water system in Florida?

In Florida vent screens and hatches are required to be inspected once a year but the FLorida DEP requires that a licensed engineer inspect each Florida water storage facility at least once every five years.

Ron Perrin Water Technologies offers stat of the art underwater inspections that allow you to keep your system in service during the inspection.  This saves you time water and money.  Our dive team can also clean your water tanks with minimal water los and little if any disruption.

Visit our web site for more information at: www.ronperrin.com

The Rule:

62-555.350 Operation and Maintenance of Public Water Systems.

(1) Suppliers of water shall operate and maintain their public water systems so as to comply with applicable standards in Chapter 62-550, F.A.C., and requirements in this chapter.

(2) Suppliers of water shall keep all necessary public water system components in operation and shall maintain such components in good operating condition so the components function as intended. Preventive maintenance on electrical or mechanical equipment – including exercising of auxiliary power sources, checking the calibration of finished-drinking-water meters at treatment plants, testing of air or pressure relief valves for hydropneumatic tanks, and exercising of isolation valves – shall be performed in accordance with the equipment manufacturer’s recommendations or in accordance with a written preventive maintenance program established by the supplier of water; however, in no case shall auxiliary power sources be run under load less frequently than monthly. Accumulated sludge and biogrowths shall be cleaned routinely (i.e., at least annually) from all treatment facilities that are in contact with raw, partially treated, or finished drinking water and that are not specifically designed to collect sludge or support a biogrowth; and blistering, chipped, or cracked coatings and linings on treatment or storage facilities in contact with raw, partially treated, or finished drinking water shall be rehabilitated or repaired. Finished-drinking-water storage tanks, including conventional hydropneumatic tanks with an access manhole but excluding bladder- or diaphragm-type hydropneumatic tanks without an access manhole, shall be checked at least annually to ensure that hatches are closed and screens are in place; shall be cleaned at least once every five years to remove biogrowths, calcium or iron/manganese deposits, and sludge from inside the tanks; and shall be inspected for structural and coating integrity at least once every five years by personnel under the responsible charge of a professional engineer licensed in Florida.

Do your own Potable Water Tank inspection

March 21, 2010 1 comment

In Texas potable water tanks are required to be inspected inside and out each year.  Of course, that is our business and we  are sure we have the best inspection, offering the most information for the lowest cost.  But sometimes no matter how much we offer, or no matter how little we offer it for, the funds may not be available.

In that case follow these steps to safely inspect your own water storage tank to meet state standards.

Inspection Technician on tower

Check the vent screen as it is the most common problem we see day after day.  The chlorine & other treatment chemicals used in potable water are very hard on steel mesh screens, so do not use stainless steel – it may seem like an upgrade, but it won’t last any time at all.

Vent Structure

Next check the level of the sediment on the bottom of the tank floor.  If you don’t have an underwater camera handy, you should drain the tank at least down to the level you can see the sediment on the floor. Make a note of the sediment depth & what it looks like, and make sure there are no insects, birds or other contaminants in the tank.  DO NOT ENTER the tank!  If you need to make entry into the tank you should follow all Confined Space Entry protocols including having at least a three- man trained team.  This is really important!  Chlorine gas can form above the water line in potable water storage tanks that have been treated with chlorine. In addition to that, corrosion on the steel can deplete oxygen levels in the tank making a deadly combination.  Our crews go in on their own air to dive the facility or use a remote camera to make entry we NEVER ENTER THE TANK alone or unprotected.

If you choose to use an underwater camera to get a look inside, make sure it is purchased for, and only used in, potable water.  Cross contamination is a serious issue that you need to be aware of!  Visit our other blog at  www.ronperrin.us for more information on water storage tank contamination.

If you are inspecting a tank or tower with a ladder, be sure to have the fall protection equipment you need to get the job done safely.

View from the top of the ladder

Inspector on tower http://www.ronperrin.com

The proper safety equipment & training is the key to performing a water tower inspection safely.

Proper Safety Gear Must Be Worn

Get a copy of the Texas State Rules  for water tank inspection directly from the TCEQ here:

TCEQ 290.46 go to : Chapter 30,   TAC §290.46(m)(1)(A)

The State Form is also available HERE:

Texas Commission on Environmental Quality Tank Inspection Form

Some other states follow AWWA recommendations. Here are the main components that are required to be inspected annually in Texas, and  should be included in any potable water tank inspection.

Foundation: settling, cracks, deterioration

Condition of  Exterior Coating: rust, pitting, corrosion, leaks

Water Level Indicator: operable, cable access opening protected

Overflow Pipe: flap valve cover accessible, operable, sealed

Access Ladder: loose bolts or rungs

Roof: low spots for ponding water, holes along seams, rust

Air Vents: proper design, screened, sealed edges and seams

Cathodic Protection Anode Plates: secured and sealed

Roof Hatch: proper design, locked, hinge bolts secured, gasket

Interior inspections should include:

Condition of  Interior Coating : Check for rust, corrosion, blistering & scaling.

Water Quality Check for:

Insects in the tank both on the surface of the water and on the interior floor.

Floating debris

Sediment levels on the interior floor – (Sediment can be a habitat for bacteria & other contaminants).

Is your tank a HydroPressure Type Tank?

Pressure Type Tank

Check Operational Status: pressure release device, pressure gauge, air-water volume device

In Texas Pressure  Type Tanks that are large enough to have an inspection port are required to be inspected annually.

They are also required to be opened up and have the interiors inspected at least once every five years.

All inspection reports performed in Texas should be kept on file and available for TCEQ review for five years.

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This should help you gat started on your potable water tank inspections.  My 157 page book is another great resource – it includes tank inspection and cleaning methods as well as state rules and common contaminants that are found in our nations water system.  It is available HERE: “Inspecting & Cleaning Potable water storage”

We have the proper training, inspection and safety equipment to safely deliver you the most information for the least cost.

ROV

Video Ray ROV

ROV Controller & Video Recorder

My book is a great reference point for state rules and requirements.

The State of Florida is one of the only states, if not the only one, that requires a Florida

licensed engineer to inspect a water storage tank.  For service in Florida see: http://www.floridatankinspector.com  

—————-

For a price quote to inspect your water storage tank with our custom made remote water tank inspection camera and trained crew call toll free 1-888-481-1768 or use the form:

Visit my Web site at www.ronperrin.com or my other blog at www.ronperrin.us
(c) Ron Perrin 2014


Underwater Services for the water utility industry.

November 20, 2008 Leave a comment

Since 1997 Ron Perrin Water Technologies has offered underwater inspection and cleaning services to the water utility industry.  We have been a leader in potable water tank & tower inspection  We offer three different water tank & tower inspections. All these inspections provide digital photos of inspection points and problem areas along with an underwater DVD so you can see the interior roof and floor of your water storage tank. We take pride in offering you the most information for the least cost.  Our potable water dive team is available to clean sediment from the floor of your water storage tanks & other underwater services.  

Company Services:
Potable Water Tank Inspections available:
    Remotely operated underwater cameras
    Remotely controlled vehicle
    Potable Water Diver

Potable water dive Services
    Potable Water Tank Cleaning
    Set plugs for valve changes
    Clean underwater gates
See our web site at www.ronperrin.com
And visit our other wordpress blog at www.tankdiver.us

Potable Water Tank Inspections

November 17, 2008 1 comment

Since 1997 Ron Perrin Water Technologies has served the water utility industry providing state of the art inspections with remote underwater cameras.  Our inspection reports are the best in the industry covering all STATE REQUIREMENTS for water tank & tower inspection and meeting all AWWA guidelines. 

Click here for more information about Potable Water Tank Inspections

Our Web site about Potable Water Tank Inspections

or go to www.PotableWaterTankInspection.com 

 

We cover over 30 inspection points.  Our digital photography documents the condition of your tank, our narrated underwater video lets you see first hand what the inside roof walls and floor areas of the tank look like.

 

We offer the most choices for your inspection needs, 

 

* Diver inspection for the most detail

* ROV – Remotely controlled underwater vehicle

                  (specially designed for potable water use)

* Remote underwater video camera

                 (our most popular inspection, includes digital photos & narrated underwater DVD for the lowest cost).

* Basic inspection- no video no photos.  To meet state regulations for minimal cost.

 

 
 
 

 

Remotely controled vehicle

Remotely controled vehicle

 

 

If there is a deep sediment build up we offer a underwater cleaning service.  Using certified divers and special equipment we are able to remove the sediment in the floor of the tank with minimal water loss and no disruption in service. Unlike other diving companies who make their money offshore and work in the water utility industry part time, serving water utilities is 100% of our business!   

 

Our gear is purchase for and only used in potable water. 

 

Diving in potable water is an art.  Unlike offshore divers, potable water divers must be able to enter the water system without disrupting sediment on the floor of the tanks,   Our divers are sealed in a dry suit so no part of their body touches the water.  They are then washed down with a 200ppm chlorine solution to meet AWWA and state standards.  The diver is then free to go into the confined space inside the water storage tanks, underwater the diver can do a more detailed inspection or clean the loose sediment from the floor of the tank.  Visit  www.ronperrin.us to see video of divers inspecting & cleaning waterstorage tanks

 

We have serviced over 500 customers that include municipal governments, utility districts towns, communities, prisons, military bases and universities.  Our customers all have a few things in common they want the most information for the lowest cost with no disruption in there water system. 

 

Visit  www.ronperrin.com

 

Call toll free today for your no obligation proposal.  1-888-481-1768