Groundwater Monitoring Wells
Advantages
of Direct Push Monitoring Wells...
Conventional
Method: Stripping the cuttings from the auger and removing cuttings
to a waste container. Multiple barrels may be filled with cuttings by
this method.
Geoprobe®
Method: No cuttings generated; no disposal costs incurred. 2.25 in.
(57 mm) OD probe rods are used to set the prepacked screen monitoring
wells which have a 1.4 in. OD. Saves time and labor costs.
- Produce
no drill cuttings
- Use
bottom-up grouting
- Have
small well diameters
- Cause
less disturbance to the natural formation
Why
rely on Geoprobe® brand Prepacks?
Geoprobe® Prepacked Screen Monitoring Wells are the most cost-effective
method for installing permanent monitoring wells. Why?
- Used
for permanent groundwater monitoring sites across the country. Geoprobe®
prepacks have been approved by many state regulators and federal agencies.
- Conform
to the requirements of ASTM D6725-01 Standard
Practice for Direct Push Installation of Prepacked Screen Monitoring
Wells in Unconsolidated Aquifers.
- Geoprobe®
Prepacks are ideal tools for low-flow sampling (minimal drawdown) procedures.
Use with Geoprobe®
bladder pumps for collection of high-integrity water quality samples.
- Available
in a variety of lengths and diameters to suit your application.
- Manufactured
using PVC and high-quality stainless steel to assure high-integrity
samples. Vibro-filled sand pack is uniform in permeabilityfrom top to
bottom. Touch it, push it, press it and see... Geoprobe® prepacks
are dense and hard, packed into place.
Saves
time and labor costs... filter pack is factory installed. Uniformly
densified sand pack will not settle during shipment. No more dropping
sand through an auger. It's all here... all in one uniform package!
- Installation
through cased probe hole provides high-integrity well construction and
sample quality.
- Fully
groutable design
protects the environment.
- Minimal
clearance between prepacked screen outside diameter and the installation
rod inside diameter keeps the well screen and riser pipe centered in
the well.
