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Hours: Sun-Thurs 8am - 5pm

Fri 8am-3pm


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Awards & Social Media

Keystone is proud to announce the Laboratory has received TWO Emerald Test Badges for the Spring 2018 round of tests.  Potency - to demonstrate we accurate report results, and Heavy Metal - to demonstrate we care about accurately detecting contaminants for clients and patients.

Press Highlights

Keystone State Testing strives to be the gold standard in Marijuana testing by achieving the highest levels of accuracy and precision in analytical solutions while using the highest levels of integrity, rigor and scientific standards.

​Awarded WBE and WOSB

12 September 2019: Dr. Kelly Greenland and Russell Greenland are interviewed in MJ Biz on potential vaping dangers.

18 August 2019: Dr. Greenland joins Emerald Scientific Committee

20 June 2019: Pennsylvania DOH announces firs three Clinical Registrants.

16 April 2019: Cannabis Industry Journal writes article about Keystone State Testing DBA Dakota State Testing receiving accreditation.

11 April 2019: A2LA issues press lease acknowledging Keystone State Testing DBA Dakota State Testing is the first accredited Medical Marijuana Testing Laboratory in North Dakota.

3 April 2019: Keystone State Testing DBA Dakota State Testing receives official accreditation from A2LA for 11 methods within ISO 17025.

25 March 2019: Dr. Greenland is highlighted as being among the first Woman Owned Marijuana Testing Laboratory by Central PA Business Journal. 

22 March 2019: Dr. Greenland is quoted in GenomeWeb Article.

17 March 2019: Article featuring Hanging Gardens states Keystone State Testing will be their 3rd party testing facility.

13 March 2019: Dr. Greenland speaks on panel regarding QC and regulations for legal marijuana at CannaEast in NYC.

29 November 2018: Keystone State Testing and Dr. Kelly Greenland appear in Penn Live article regarding obtaining MMJ.

10 September 2018: Keystone State Testing appear in Grand Forks Herald article regarding new grower in North Dakota.

19 June 2018: Cannabis Law Posts Article that Keystone State Testing received TWO Emerald Badges for Spring 2018

18 June 2018: Keystone State Testing receives TWO Emerald Badges for Spring 2018, Potency & Heavy Metal

18 May, 2018: Keystone State Testing Receives Exclusive Testing Contract for the State of North Dakota

14 April 2018: Kelly Greenland, PhD to speak to Analytical Chemists of Pittsburgh and Spectroscopy Society of Pittsburgh

12 April 2018: Kelly Greenland, PhD to speak at World Medical Cannabis Conference

​28 March 2018: Cannabis Industry Journal posts A2LA Press Release featuring Keystone

27 March 2018: A2LA Accredits First Cannabis Testing Laboratory in Pennsylvania

27 March 2018: A2LA  Press Release announces Keystone as the first A2LA accredited laboratory in Pennsylvania

5 March 2018: Kelly Greenland, PhD to speak at Educational Scientific Cannabis & Networking Symposium for Laboratory Testing at the Medical Cannabis Educational Summit at HACC

14 February 2018: Keystone begins compliance testing

13 February 2018: Keystone receives ISO17025 accreditation by A2LA covering 16 scopes of analysis

12 February 2018: Senator Mike Folmer mentions visiting Keystone in his weekly memo

1 February 2018: See the Senator Mike Folmer Community Report Cable Show: Keystone State Testing show

26 January 2018: Penn Live references Keystone in their real-time news article on PA Medical Marijuana

18 January 2018: Kelly Greenland, PhD speaks with Dauphin County Bar Association

18 January 2018: Penn Live article about Keystone

17 January 2018: See our lab tour on Penn Live! 

13 December 2017: Biz Journal references Keystone as one of the approved testing laboratories in PA

2 November 2017: Kelly Greenland, PhD speaks in Women in STEM panel discussion at Lock Haven University of PA

1 October 2017: Keystone discussed in MJ Biz article

28 September 2017: Penn Live announces first two approved laboratories in PA

21 September 2017: Keystone awarded medical cannabis testing license in PA

12 September 2017: Keystone published in Cannabis Law PA Blog: Before the Big Drop