# Contamination on the site

**URL:** <https://community.blackspectacles.com/t/contamination-on-the-site/2859>\
**Category:** Programming & Analysis\
**Tags:** help\
**Created:** [April 5, 2021, 2:58am UTC](https://community.blackspectacles.com/t/contamination-on-the-site/2859 "2021-04-05T02:58:31Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![whuang](https://blackspectacles.com/uploads/images/3.png) [@whuang](https://community.blackspectacles.com/u/whuang)\
**Post date:** [April 7, 2021, 8:25pm UTC](https://community.blackspectacles.com/t/contamination-on-the-site/2859/3 "2021-04-07T20:25:44Z")

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Hi Darion,

Thanks for such detailed reply! It’s really helpful.

The book gives the context that contractor uncovered contamination(ex: lead, asbestos) during construction, so I would assume ESA haven’t find anything hazard during Phase 1 but actually there is? Would that be possible that ESA miss this?

Also is there any scenario ESA will skip Phase 1 and directly start with Phase 2? For example there is contamination history in site?

Thanks!

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