MTOX Medtox Scientific, Inc. (MM)

CUSIP No. 584977201 13G

1. NAME OF REPORTING PERSON
 S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
 Riverbridge Partners LLC
 41-1930193
2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
 N/A (a)____
 (b)____
3. SEC USE ONLY

4. CITIZENSHIP OR PLACE OF ORGANIZATION
 Minneapolis, Minnesota
NUMBER OF 5. SOLE VOTING POWER
SHARES 380
BENEFICIALLY 6. SHARED VOTING POWER
OWNED BY N/A
EACH 7. SOLE DISPOSITIVE POWER
REPORTING 548
PERSON 8. SHARED DISPOSITIVE POWER
WITH N/A
9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
 548
10. CHECK BOX IF AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
 N/A
11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
 .01%
12. TYPE OF REPORTING PERSON
 IA


Item 1(a) Name of issuer:
 Medtox Scientific Inc.
Item 1(b) Address of issuer's principal executive offices:
 402 West County Road D, St. Paul, MN 55112
Item 2(a) Name of persons filing:
 Riverbridge Partners LLC
Item 2(b) Address or principal business office or, if none, residence:
 801 Nicollet Mall, Suite 600, Minneapolis, MN 55402
Item 2(c) Citizenship:
 Minnesota Corporation
Item 2(d) Title of class of securities:
 Common Stock
Item 2(e) CUSIP No.:
 584977201
Item 3 If this statement is filed pursuant to rules 13d-1(b), or 13d-
 2(b) or (c), check whether the person filing is an:
 Investment Adviser registered under Section 203 of the
 Investment Advisers Act of 1940.
Item 4 Ownership
 (a) Amount beneficially owned:
 548 shares of common stock
 (b) Percent of class:
 .01% of total shares of common stock outstanding
 (c) Number of shares as to which the person has:
 (i) Sole power to vote or to direct the vote
 380
 (ii) Shared power to vote or to direct the vote
 N/A
 (iii)Sole power to dispose or to direct the disposition
 548
 (iv) Shared power to dispose or to direct the disposition
 N/A

Item 5 Ownership of Five Percent or Less of a Class.
 X Ownership is five percent or less
Item 6 Ownership of More than Five Percent on Behalf of Another Person.
 N/A
Item 7 Identification and Classification of the Subsidiary Which Acquired
 the Security Being Reported on by the Parent Holding Company or
 Control Person.
 N/A
Item 8 Identification and Classification of Members of the Group.
 N/A
Item 9 Notice of Dissolution of Group.
 N/A
Item 10 Certification
By signing below I certify that, to the best of my knowledge and belief,
the securities referred to above were acquired and are held in the ordinary
course of business and were not acquired and are not held for the purpose of
or with the effect of changing or influencing the control of the issuer of
the securities and were not acquired and are not held in connection with
or as a participant in any transaction having that purpose or effect.
 Signature
After reasonable inquiry and to the best of my knowledge and belief,
I certify that the information set forth in this statement is true, complete
and correct.

Dated: July 6, 2012

Mark A. Thompson

Mark A. Thompson/Chief Investment Officer