NYC 9/11 Public Portal Document
Department of
Environmental
Protection
59-17 Junction Boulevard
Corona, New York
11368-5107
To: Joseph J. Lhota
Joel A. Miele Sr., P.E.
Deputy Mayor
Commissioner
Tel(718)595-6565
Fax (718)595-3525 From: Joel A. Miele Sr
[email protected] Commissioner
Date: January 12, 2001
Re: Turbidity Rates and Chemical Additions to the Water
Supply
Due to heavy rains and attendant runoff in the watershed during
December 2000, water quality has shown an increase in turbidity levels.
To avoid violations of state codes and, more importantly, violations of the
filtration avoidance requirements, DEP has requested and received, from
both NYS Dept. Of Health and NYSDEC, permission to add alum into the
Catskill Water Supply. The addition of alum acts as a flocculent and
assists in the settling-out process. As of Wednesday, January 10th, the
turbidity levels have stabilized. We will continue adding alum until we're
convinced that the levels are trending down.
I have attached our letters of request and the the State's approval letters for
your information.
cc: Vincent A. LaPadula /
I:E 01k`
w. ct. nyc.ny. us / de
(718) DIP -HELP
NYC-WTC 000137772
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