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Sediment Sump (As Appropriate)

Protective Cover With Locking Cap

6 in (152 mm) Clearance For Sampler

Slope Bentonite/Soil Mixture or 4 in (101 mm) Thick Concrete Pad Away From Casing

Slope Concrete Grout Away From Casing or Riser To Prevent Infiltration, But Do Not Create a Mushroom Which Will Be Subject To Frost Heave

Steel Casing Installed and Stabilized At a Minimum 2 ft (60 mm) Into Confining Layer

Dry Bentonite Pellets

Minimum 2 in (50 mm) ID Riser With Flush Threaded Connections Wrapped With Pipe Tape or With O-rings (varies With Riser Material)

Centralizers as Necessary

Well Identification Labeled Inside and Outside The Cap

6 in (152 mm) Clearance For Sampler

Slope Bentonite/Soil Mixture or 4 in (101 mm) Thick Concrete Pad Away From Casing

3 ft - 5ft (1.0 to 1.5 m) Extend Protective Casing Depth To Below Frost Line

Grout Length Varies

6 in - 1ft (152 to 304 mm) Final Secondary Filter Pack 3 ft - 5 ft (1.0 m to 1.5 m) Bentonite Seal

1 ft - 2 ft (303 mm to 608 mm) Secondary Filter Pack Where Conditons Warrant Extend Primary Filter Pack 20% of Screen Length or 2 ft (608 mm) Above Slotted Well Screen, Unless ConditionsWarrant Less

Centralizers as Necessary

Plug

Well Screen Length Varies

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