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2013 Certified Manure Testing Laboratories
    ROCK RIVER LABORATORY INC
    Effective Period: 01/01/2013 - 12/31/2013
    Contact: DUSTIN SAWYER ~ DUSTIN_SAWYER@ROCKRIVERLAB.COM
    710 COMMERCE DR, WATERTOWN, WI 53094
    Phone: (920) 261-0446 ~ Fax: (920) 261-1365
    Endorsements:
         CALCIUM
         COPPER
         MAGNESIUM
         NITROGEN BY COMBUSTION
         PHOSPHORUS
         POTASSIUM
         SODIUM
         SULFUR
         TOTAL SOLIDS
         ZINC

MDA Contact

Jerry Floren
jerry.floren@state.mn.us
651-201-6642 • Fax: 651-201-6112
Pesticide & Fertilizer Management Division