Archive

Posts Tagged ‘Potable water tank inspection’

Do your own Potable Water Tank inspection, Potable Water Tower Inspection.

March 21, 2010 1 comment

GST – Ground Storage Tank Inspection

EST – Elevated Storage Tank Inspection

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.


Do you need a Texas Inspection form?  Click here:  TCEQ TANK INSPECTION FORM.


Do you know how to inspect a water tower and stay safe?  Click this link to find out!

This should help you gat started on your potable water tank inspections.

If you need an inspection contractor call 817-377-4899 or see: www.ronperrin.us

Since 1997 we have performed thousands of inspections for water utilities in 14 states.

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
 
 
Advertisements

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

 

Calcium carbonate build up that was removerd from a 20″ line.

October 28, 2008 Leave a comment
Project to remove calcium carbonate build up

Project to remove calcium carbonate build up

Calcium carbonate build up that was removerd from a 20" line

Calcium carbonate build up that was removerd from a 20

Calcium carbonate  removal from a 20″ water plant line.
We went into the line as far as we could reach but due to the fact that
it was only a 20″ line we could not get back far enough.  Still this was
good experience in calcium carbonate  removal.
This is a problem in many plants and can effect gated and valves.  When the pipe 30 to 36″
diver can  effectively free up butterfly valves or open clogged lines.