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AGENCY TESTIMONY
Unified Stormwater Rule for new developments in New York City
0:19:57
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103 sec
Deputy Commissioner Licata explains the Unified Stormwater Rule, implemented in early 2022, as a powerful tool for on-site stormwater management in New York City. The rule requires sites disturbing 20,000 square feet or more of soil or adding 5,000 square feet or more of new impervious surfaces to manage a certain amount of stormwater on-site.
- Over 1,400 sites are meeting the new online stormwater management requirements.
- An additional 200 sites have constructed or will soon be constructing green infrastructure to further reduce stormwater runoff.
- A specific example is provided of a development at 585 Union Street in Gowanus, which includes a 6,000 square foot green roof and a robust detention system.
Angela Licata
0:19:57
The city alone cannot manage storm water because most property in the city is privately owned.
0:20:03
It's roughly about 50 to 60%.
0:20:08
That makes the unified stormwater rule one of our most powerful tools for on-site stormwater management.
0:20:15
Started in early twenty twenty two, it requires every site that disturbs 20,000 square feet or more of soil or adds 5,000 square feet or more of new impervious surfaces to manage a certain amount of stormwater on their site.
0:20:30
They must submit a stormwater pollution prevention plan, or a SWIP, which requires controls to be in place during construction to protect our sewers and water bodies from soil erosion.
0:20:44
As the sites redevelop, they are performing better during wet weather than they were before development.
0:20:51
Since this rule was implemented, over 1,400 sites are meeting the new online stormwater management requirements, and an additional 200 sites have constructed or will soon be constructing green infrastructure to further reduce their stormwater runoff.
0:21:08
Examples of these projects can be found all over the city.
0:21:11
One example includes 585 Union Street in Gowanus.
0:21:15
This nine story, 230,000 square foot building will occupy the entire lot.
0:21:21
Before the stormwater rule was in effect, a development like this likely would have just managed stormwater in an underground detention tank.
0:21:29
With our rule, they are building a 6,000 square foot green roof and a robust detention system.
0:21:36
We even noticed them touting their green roof under building amenities on their website.