Rock River Lab

710 Commerce Dr.
P.O. Box 169
Watertown, WI 53094-0169
920-261-0446

SoilSoil

The soil laboratory takes great steps to assure the accuracy and timely analysis of your soil samples. We run our in-house check every 36th sample. We also calibrate our pH probes after every 12 samples, and our P/K analyzer every 180 samples. Besides these in-house checks, we participate in the North American Proficiency Testing Program. Here we are tested on 5 samples each quarter for pH, SMP pH, Bray P-1, Olsen-P, Bray-K, Ammonium Acetate-K, Organic Matter, Ca, Mg, B, Zn, Mn, S, Cu, and Fe. We are also certified by the WI-FSA. This certification requires us to submit monthly samples to the University of Wisconsin soil lab, and score a proficient number in their semi-annual check sample exchange. We can also boast of our combined 30 years of soil laboratory experience between our 5 laboratory technicians.

We work long, hard hours during the spring and fall season to ensure the accuracy and timeliness of your results. We would be delighted to discuss any questions or concerns that you may have about soil sampling. Please feel free to call Dustin at 920-261-0446 regarding soil sampling results and procedures. Jackie can be reached at the same number for issues regarding sample status or report format options. Randy Busch can be reached at 920-988-2270 for issues regarding custom soil sampling, GPS soil sampling, and large sample accounts.