| Watershed | Sampling Method | Sample Date | Collector(s) | Determiner |
|---|---|---|---|---|
| Jonathan Creek (Purchase area) | unspecified | 2002-06-08 | MGPogue | MEpstein |
| Uncertain | unspecified | 1962-07-02 | unknown | unknown/unspecified |
| Uncertain | unspecified | 1988-07-05 | KWatson | JDPaulsen |
| Uncertain | unspecified | 1989-07-03 | KRLangdon | KWatson |
| Uncertain | unspecified | 1998-06-14 | TLangdon | DDeFoe |
| Uncertain | unspecified | 2000-07-24 | MGPogue & MEpstein | MEpstein |
| Uncertain | unspecified | 2001-06-25 | DRDavis & MDavis | MEpstein |
| Uncertain | unspecified | 2001-07-15 | JWBrown | MEpstein |
| Uncertain | UV light | 2001-06-29 | BGScholtens | BGScholtens |
| Uncertain | UV light | 2002-06-09 | RLBrown & SLee | RLBrown |