Yale Community Health Care Van & Syringe Services Program
For all past drug checking results, click "RESULTS" tab
Date: 09/20/2026
Location: New Haven
Submitted as: Crack
Fentanyl Test Strip: not tested
Xylazine Test Strip: not tested
Results: cocaine freebase (major)
Date: 09/14/2026
Location: New Haven, Fairhaven
Submitted as: Crack
Fentanyl Test Strip: Negative @ 5mL
Xylazine Test Strip: not tested
Results: cocaine freebase (major)
Date: 09/14/2026
Location: New Haven
Submitted as: Cocaine
Fentanyl Test Strip: Negative @ 5mL
Xylazine Test Strip: not tested
Results: cocaine hci (major)
Date: 09/14/2026
Location: New Haven
Submitted as: Crack
Fentanyl Test Strip: Negative @ 5mL
Xylazine Test Strip: not tested
Results: cocaine freebase (major
Date: 09/14/2026
Location: New Haven, The Hill
Submitted as: Heroin
Fentanyl Test Strip: Positive @5mL
Xylazine Test Strip: Negative @ 5mL
Results: mannitol (major), fentanyl (major)
Date: 09/11/2026
Location: New Haven
Submitted as: Unknown
Fentanyl Test Strip: Positive @5mL
Xylazine Test Strip: Negative @ 5mL
Results: mannitol (major), fentanyl (minor)
Date: 09/11/2026
Location: New Haven
Submitted as: Unknown
Fentanyl Test Strip: Positive @5mL
Xylazine Test Strip: Negative @ 5mL
Results: mannitol (major), caffeine (major), fentanyl (minor), heroin (minor)
Date: 09/09/2026
Location: Unknown
Submitted as: Crack/Cocaine
Fentanyl Test Strip: Negative @ 5mL
Xylazine Test Strip: Negative @ 5mL
Results: cocaine freebaase (major), phenacetin (major)
Date: 09/03/2026
Location: New Haven, The Hill
Submitted as: Fentanyl
Fentanyl Test Strip: Positive @5mL
Xylazine Test Strip: Negative @ 5mL
Results: creatine (major), mannitol (major), fentanyl (minor)
Date: 08/17/2026
Location: New Haven
Submitted as: Fentanyl
Fentanyl Test Strip: Positive @5mL
Xylazine Test Strip: Negative @ 5mL
Results: Mannitol (major), Fentanyl (major), Creatine (major), Caffeine (minor), heroin (trace/unknown)
Date: 08/06/2026
Location: New Haven, The Hill
Submitted as:
Fentanyl Test Strip: Negative @ 5mL
Xylazine Test Strip: Negative @ 5mL
Results: microcrystalline cellulose (major), lactose (major), hydromorphone (minor)
Date: 08/05/2026
Location: New Haven
Submitted as: Fentanyl
Fentanyl Test Strip: Positive @5mL
Xylazine Test Strip: Negative @ 5mL
Results: mannitol (major), fentanyl (minor)
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Yale Community Health Care Van & Syringe Services Program
STASH ID displays time sensitive updates on remnant drug samples that are voluntarily donated to the NHSSP for the purposes of harm reduction and community drug checking services. All samples donated to NHSSP remain confidential. Samples and aggregated data trends are reported with intent to provide available data on suspected adulterants to the illicit drug supply. All sample and data trends are reported at the city/town and state levels. No private information is displayed to protect confidentiality. *adapted from Massachusetts Drug Supply Data Stream (MADDS)