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Screen Point 16 Groundwater Sampler

The Screen Point 15 groundwater sampling system was the most widely used direct push water sampling equipment for environmental groundwater investigations for several years. Since then, Geoprobe Systems® has retired the Screen Point 15 system and introduced the Screen Point 16 (SP16) system (1.6 in. OD screen sheath) which is designed for use under the more powerful GH60 hammer with the heavier 1.5 in. probe rods. These protected screen samplers have only five parts, including the grout plug, plus a few O-rings. Using either of these tools with O-rings on the rod fittings enables you to collect representative groundwater samples from a discrete interval using a bailer, bladder pump, or other device. The length of the screen exposed to the formation can be set from just a few inches to as much as 41-inches to let you select the sampling zone. Additionally, the same screens (Stainless Steel or PVC) can be used in both samplers. The grout plug at the base of the screen makes it possible to conduct bottom-up grouting with bentonite slurries or neat cement using any of the Geoprobe® GS Series grout machines. A PDF standard operating procedure (SOP) for the SP16 samplers is available for free to download.

SP16: Screen Point 16 Water Sampling Equipment

The SP16 Groundwater Samplers are used to collect groundwater samples from unconsolidated materials at depths ranging from near ground surface to over 100 feet below grade. The depth that can be reached with SP16 water sampling equipment is a function of the equipment and methods being used to advance the sampler (manual, static vehicle weight, or percussion probing), the formation being penetrated, and operator experience.

SP16 Advantages:

  • Completely sealed during driving
  • Stainless steel or PVC screen
  • Actual interface samples
  • 41-in. exposed screen length
  • Fast recharge from formation
  • Samples recovered using Tubing Check Valve, Mini-bailer or 0.5 in. Bladder Pump
  • Durable Drive Head and Corrosion Resistant Sampler Sheath
  • Sample both dissolved compounds and NAPLs
  • Built to withstand percussive probing
  • Screen sheath forms mechanical annular seal above the screen while sampling

How It Works

1. Driving
The assembled Screen Point 16 Groundwater Sampler is driven to the desired sampling depth using standard Geoprobe® rods.

2. Deployment
Extension rods are used to hold the screen in position while the rods and sheath are retracted. The screen sheath forms a mechanical annular seal above the screen interval.

3. Sampling
The tubing check valve can be used to sample and measure NAPLs within the screen interval as well as sample groundwater. A small bladder pump may be used to collect high-integrity VOC samples.

4. Grouting
Abandonment grouting can be conducted to meet ASTM guidelines. A high-pressure grout pump is used to pump grout into the probe hole as the screen and rods are extracted using the rod grip pull assembly.

SP16 Sampling


Latching SP16


The latching sampler allows the user to connect a pump, or other sample line, directly to the top of the downhole SP sampler. This isolates the SP sampler from water in the rod string above the sampler, thereby assuring sample integrity.

Tooling Links


We could go through 100 feet of water with confidence of the discrete nature of the sample, important because the detectable carcinogenic rate of PFAS is so low you have to be certain there's no cross contamination.


Mark Zork, President, Technical Drilling Services

Tool String Diagram

SP16 tool string diagram

To use the latching sampler with the SP16 Groundwater Sampler, be sure to select the SP16 Latching Drive Head (MN 238405) when you purchase this system. When operating the mechanical syringe or bladder pump within this sampler, Geoprobe® recommends using the mechanical actuator (MN 214106) for sample collection. Latching groundwater sampling system patent pending.

Parts

To order parts or to get a quote, click the "+ Part" button. Once you are ready to submit your quote or order, go to your cart.
You will have the option to order immediately (pending payment) or get a quote.

SP Drive Head

1.25 Pin, 1.63 in. OD

MN: 211776

SP16 Drive Head

1.5 Pin, .625 in. Bore

MN: 202633

SP16 Drive Head

1.5 Pin, .5 in. Bore

MN: 203262

SP16 Drive Head

1.75 Pin, .5 in. Bore

MN: 223178

SP16 Screen

Stainless Steel

MN: 214027

SP16 Screen

PVC, Recoverable

MN: 214028

SP16 Screen

0.65 in. ID, 0.010 Slot, PVC, Disposable

MN: 202821

SP16 Grout Plug

Quantity: 25

MN: 601033

SP16/SP22 Expendable Point Steel

1.625 in. OD, Quantity: 25

MN: 214036

SP16/SP22 Expendable Point Steel

1.75 in. OD, Quantity: 25

MN: 213617

O-Ring (1.25 in. Probe Rod)

Quantity: 25

MN: 213771

O-Ring (1.5 in. Probe Rod)

Quantity: 25

MN: 202695

O-Ring (1.75 in. Probe Rod)

Quantity: 25

MN: 220387

Nylon Grout Tubing

3/8 in. OD x 1/4 in. ID x 100 ft.

MN: 600144

PE Tubing

3/8 in. OD x 1/4 in. ID x 500 ft.

MN: 601063

Tubing Check Valve

3/8 in. OD Tubing

MN: 214061

Mini Bailer

0.4" OD X 20"

MN: 214056

O-Ring (SP Latch Body)

Quantity: 10

MN: 239184

SP Latch

Quantity: 10

MN: 240695

Shear Pin Latching SP MSP/MBP

Quantity: 10

MN: 239716

SP16 Latching Drive Head

1.5 Pin

MN: 238405

MBP/MSP Check Ball Stainless Steel

Quantity: 10

MN: 103212

SP Drive Head

1.25 Pin, 1.63 in. OD

MN: 211776

SP16 Drive Head

1.5 Pin, .625 in. Bore

MN: 202633

SP16 Drive Head

1.5 Pin, .5 in. Bore

MN: 203262

SP16 Drive Head

1.75 Pin, .5 in. Bore

MN: 223178

SP16 Screen

Stainless Steel

MN: 214027

SP16 Screen

PVC, Recoverable

MN: 214028

SP16 Screen

0.65 in. ID, 0.010 Slot, PVC, Disposable

MN: 202821

SP16 Grout Plug

Quantity: 25

MN: 601033

SP16/SP22 Expendable Point Steel

1.625 in. OD, Quantity: 25

MN: 214036

SP16/SP22 Expendable Point Steel

1.75 in. OD, Quantity: 25

MN: 213617

O-Ring (1.25 in. Probe Rod)

Quantity: 25

MN: 213771

O-Ring (1.5 in. Probe Rod)

Quantity: 25

MN: 202695

O-Ring (1.75 in. Probe Rod)

Quantity: 25

MN: 220387

Nylon Grout Tubing

3/8 in. OD x 1/4 in. ID x 100 ft.

MN: 600144

PE Tubing

3/8 in. OD x 1/4 in. ID x 500 ft.

MN: 601063

Tubing Check Valve

3/8 in. OD Tubing

MN: 214061

Mini Bailer

0.4" OD X 20"

MN: 214056

O-Ring (SP Latch Body)

Quantity: 10

MN: 239184

SP Latch

Quantity: 10

MN: 240695

Shear Pin Latching SP MSP/MBP

Quantity: 10

MN: 239716

SP16 Latching Drive Head

1.5 Pin

MN: 238405

MBP/MSP Check Ball Stainless Steel

Quantity: 10

MN: 103212