Tips and Tricks

Simple by Design - Designing Your GWS Plan Made Simple

The HydraSleeve motto is “Simple by Design”. You will see it all over our packaging and in our literature.

The HydraSleeve was invented to make groundwater sampling a simple job.

The first step in the process of simplifying your groundwater sampling program is making sure you get the correct HydraSleeves and accessories for your job.

Each job or sampling location is different; each well within those locations can be different.

Reviewing the well specs and assigning HydraSleeves to those wells might seem like a daunting task to some. It might look impossible to others. For us, it’s simple. No one knows our products better.

Let us do the work for you….let us make it simple. There are several different ways we can do this for you.

  1. We always review incoming orders to make sure they make sense. If something doesn’t look like it will work together we always bring it to your attention. That being said; you know your wells best – if you think it will work after we have discussed the situation – we will ship what you order.
  2. You can submit smaller jobs and general well information using our well template form – click here. After review and discussion of your job we will offer a quote for the wells listed on the form. The form is limited to 10 wells. Please see suggestion #3 for larger sites.
  3. This email address is being protected from spambots. You need JavaScript enabled to view it.. We will add our suggestion and notes to your documentation. From this, we can work up a quote for any size groundwater sampling program – large or small.

Here’s an example of the information needed as seen in our well template form:

welltemplateinfo

 

We look forward to hearing from you. It’s our job to make your job…Simple, by Design!

Steamy New HydraSleeve Experiment

Have you ever wondered if HydraSleeves can be used in geothermal environments?  It's been asked of us numerous times; andheat pic vg yes, they have actually worked for some geothermal applications in South American of which we are aware.

We recently wanted to see exactly what the limitations are for HydraSleeves in heated environments.  We know the specifications for our proprietary virgin food/medical grade LDPE material are stated to have a high end temperature range of 90 degrees Celcius with a melting point of 150 degrees C.  This translates to 194 degrees Fahrenheit and melting at 302 degrees F.  Basically our experiments found this to be true when heated without pressure.  However, when dealing with extremely deep wells where heat can play a factor, there can also be a lot of pressure.  So, does pressure along with heat change the specs of HydraSleeve use? 

Let us see:

We tested samples of our material in boiling water and in a temperature controlled oven.  To add a pressure component we used an embossing dye squeezed between the jaws of vice grips.  According to the vice grips manufacturer they exert a pressure of 500-2,000 psi.  It's likely that our pressure was on the high end of the scale since it took both hands to close the jaws.  
 
Results:
  1. We boiled the sleeve in water for 10 minutes and immediately removed it and put in in the vice.  Although the embosser left its imprint (it does so at room temperature) there was no indication of the sleeve melting or becoming welded together.
  2. Next we heated the sleeve in a controlled temperature oven to ~230 degrees for 10 minutes and applied pressure.  We had the same results as step one.
  3. Then we heated the sleeve in the oven to 300 F for 10 minutes.  Here we experienced  much different results.  The LDPE began to curl and actually welded itself together without any outside pressure.  The embosser/vice grip sealed the two sides of the bag together.
  4. Finally we reduced the oven temperature to ~260 F and heated the LDPE material.  There was some bag deformation and welding but to a lesser degree than 300 F.  When pressed between the embossing plates the two sides of the sleeve solidly welded together at the pressure point.

Conclusion:

HydraSleeves can be used in geothermal applications not exceeding ~230 degrees Fahrenheit.  They should even withstand a good amount of external pressure even at this temperature.  If dissolved gasses (steam) are anticipated the sleeve needs to be vented at the top to allow the expanding gas to escape during recovery.

 heat pic results

 Please call 800-996-2225 or email This email address is being protected from spambots. You need JavaScript enabled to view it. if you have any questions.

 

UK HydraSleeve Distributor Demonstration for Oil & Gas Exploration

In-Situ UK HydraSleeve Sampling

 

Our distributor in the United Kingdom (In-Situ Europe) recently posted an article about their experience demonstrating HydraSleeves for their client.  The object of this demo was to determine the answer to these 3 questions:

       1. Could a single HydraSleeve sample provide a comparable dissolved methane concentration?

       2.  Could a single HydraSleeve sample provide sufficient volume of water for laboratory analytical purposes?

       3.  Would water quality concentrations be similar to the ranges established in previous sampling surveys (3 had been carried out to date)?

 

Here's a link to the article which explains the steps taken in addition to the answers to these questions.

They summed it up quite nicely:

      This was a fascinating practical problem which has simplified the sampling methodology for the client whilst maintaining approved protocols. And the results look good!

 

In-Situ Europe carries a good selection of HydraSleeves in stock for European HydraSleeve users. Contact by This email address is being protected from spambots. You need JavaScript enabled to view it. or phone: +44 (0)121 733 7743

PFAS Sampling with HydraSleeves

Early in 2016 we received several calls and emails on using HydraSleeves to sample PFA's (Perfluorinated Compounds).  We were provided with a list of items that are, and are not, acceptable for PFA sampling sites.  We were surprised to see LDPE (the original HydraSleeve material) was on the non-compliance side of the list. 

Polypropylene and HDPE are on the acceptable side; so we set out to make a version of our HydraSleeves from HDPE material.

The HDPE version of HydraSleeves available in 2 sizes; they are made for 2-inch wells; and they are in the Super/SkinnySleeve configuration.  

PFCHDSS-1L $21.00

PFCHDSS-2L $26.00

These same sleeves can be used for 4-inch wells and larger diameters by using the wide mouth adapters availabe in 4-2 inch reducer for 4-inch wells or the SWA adapter for surface water or 6-inch wells and larger.

Because of the SuperSleeve configuration, they will require a threaded PVC top collar (or a wide mouth adapter) or threaded top weight.  See links to the accessories on the product ordering page above.

 PFCHS 1L

Along with the sleeves, we also have to accommodate for new packaging and handling materials, as our current packaging is also made of LDPE.  The sleeves will be packaged in ultra-clear Polypropylene Ziploc bags with no writing on them.  Weights shipped with the orders will be sent in woven Polypropylene bags (similar to sand bags).  Our original dispensing straws are already Polypropylene, so they are acceptable as is.

Please This email address is being protected from spambots. You need JavaScript enabled to view it. or call 800-996-2225 if you have any questions.

The US Navy's Guide for Transitioning to Passive Sampling

At the following link you will find an interesting guideline published by the US Navy for transitioning from conventional to passive sampling for groundwater.

This short fact sheet gives you the details of designing a desktop reivew of the concept; establishing data quality objectives; designing and implementing a comparative study and the evaluation of methods and acceptance criteria.

Navy Guide for Transitioning from Conventional to Passive Groundwater Sampling