New York City Department of Environmental Protection ... - NYC.gov

comments to the engineer on 3/24/11 regarding the concrete check dams. A progress meeting
was held with the project representatives on 3/29/11. DEP performed a site visit on 3/29/11;
there were no deficiencies, there was no discharge and the site was vacant. DEP performed a site
visit on 4/7/11; there were no deficiencies, there was no discharge, the site was occupied. DEP
received a sketch of where the walls will be installed from the engineer on 4/12/11. DEP
received a copy of the outfall pipe finished grade elevations from the engineer on 4/13/11. DEP
performed a site visit on 4/21/11; there were no deficiencies, there was no discharge, the site was
occupied. DEP received the April 2011 meeting minutes from the engineer on 5/6/11. DEP
performed a site visit on 5/10/11; there were deficiencies, there was no discharge, the site was
occupied. DEP sent and received e-mails to and from the engineer on 5/11/11 regarding the
erosion on the north side of Rt. 23. DEP received an e-mail from the engineer on 5/12/11 with a
photo that was sent from the contractor. DEP performed a site visit on 5/17/11; there were no
deficiencies, there was no discharge, the site was vacant. DEP sent an e-mail to the engineer on
5/31/11 with photos that were taken at the 5/19/11 site visit. A meeting was held with the project
engineer and contractor on 6/2/11. Structure elevation and spot elevations were taken. DEP
received an e-mail from the engineer on 6/2/11 regarding the adjustments in elevations of the
bio-retention basin. DEP called the project inspector on 6/14/11 regarding the bio-retention
basin drainage. Currently, the basis is supposed to drain out completely within 48 hours. It does
not appear to be functioning properly during the standard site visits. Special attention to the
weather forecasts and the basis's elevation needs to be considered. DEP received a call on
6/16/11 from the project inspector regarding the bio-retention. He's going to the site to pull soil
samples of the media and sending off to a lab to check if it meets the spec in the approved plans.
DEP called the project inspector on 6/21/11 regarding the bio-retention basin. The project
inspector stated that he was on site yesterday and did not observe any water coming from the
bio-retention basin's under drain. The engineer and the project inspector have looked into their
records whether the media used was tested and when it was installed. After calling the
contractor, the contractor stated that they used the topsoil on site; it supposedly passed their soil
testing near the high limit for testing. Later this week, the contractor is meeting the project
inspector and they will both will be taking soil samples and getting them tested. DEP sent an email
to the engineer on 6/27/11 requesting the testing results regarding the bio-retention basin.
DEP received the Certificate of Functional Completion from the engineer on 6/28/11. DEP sent
an internal e-mail on 6/28/11 stating that the bio-retention basin will not hold up the functional
completion for the WWTP. DEP received an e-mail from the engineer on 6/29/11 with the bioretention
flow splitter. DEP received an e-mail from the engineer on 8/17/11 informing DEP that
the soil tests passed the required specifications however the engineer requested the contractor to
dig soil test pits to check the media’s homogeneousness. The contractor will also adjust the one
concrete weir at that time. DEP performed a site visit on 10/3/11; there were deficiencies, there
was no discharge and the site was occupied. A meeting was held with the project inspector on
10/3/11. DEP performed a site visit on 10/11/11; there were deficiencies, there was no discharge
and the site was occupied. DEP received the meeting minutes for construction startup on laterals
and septic tank installation from the engineer on 10/14/11. DEP performed a site visit on
10/17/11; there were deficiencies, there was no discharge and the site was occupied. DEP
received an e-mail from the engineer on 10/18/11 with the WWTP flood damage repair update.
DEP issued a letter to the engineer on 10/19/11 regarding the 10/17/11 site visit and the bioretention
test holes. DEP received a call on 10/19/11 from the engineer regarding the
Bioretention test holes. DEP called the inspector on 10/26/11 regarding the bio-retention basin.
It appears that a portion of the Bio-retention basins under drain has been replaced. DEP called
the inspector to confirm that the under drain will be exposed for inspection prior to the media
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