Taking Undisturbed Soil Samples

1. Cut 2" PVC pipe into a section long enough to reach 6 inches into the green. The PVC pipe diameter must be 2" to fit our equipment.
2. Sharpen one end of the pipe to penetrate the green.
3. Drill 2 holes opposite each other near the tip of the opposite end of the pipe so that a metal rod can be inserted as a handle to remove the core.
4. Pound the PVC pipe into the green. If greens are old push-up greens, pound the pipe as far as it will go (6" minimum).
5. Remove the core, pack each end with paper, tape both ends with duct tape, and pack cores securely for shipping.
6. Send samples to:
   DAKOTA Analytical, Inc.
   833 Gateway Drive, NE
   East Grand Forks, MN 56721
   Phone: 701-746-4300
   Fax: 218-773-3151
7. A complete Rootzone Analysis will be performed on the top 3" core. This includes a physical analysis (ASTM F1815), complete particle size analysis (ASTM F1632), organic matter analysis minus the top 1/4" layer (ASTM F1647, method 2), pH and USGA™ recommendations for putting green rootzone mixture.