Chain of custody record, Westchester County Lab, Nov 2001

NYC 9/11 Public Portal Document

NYC-DEP Bureau of Water Supply Weekly Chlorination and Fluoridation Report Kensico Laboratory, ELAP ID No. 10771 For Period 10/08 - 10/14/01

CHLORINATION FLUORIDATION

I I I CATSKILL 1 DELAWARE I CROTON CATSKILL I DELAWARE CROTON DISTRIBUTION I______ I I. at Eastview | at Shaft 19 | at CLGH | at Sh 9 at Eastview | at Shaft 19 BX32(CR0) eiDUNW BX3(CAT) BX58(DEL) ;============I = === = = = = = = ==== I =========== = = = I= = ======: :====!========= :== = = ========= ===== FCR I DOSE I FOR |DOSE1 FCR |DOSE| FCR Fluoride DOSE I Fluoride DOSE Fluoride DOSE Fluoride Fluoride I----I l-■-■l I----I .... I----I----- 1---- DATE ■g/L|»g/L|»g/L|»g/L|iiig/L|»g/L|«g/L|Bg/L|i«g/L|i«g/L|«g/L mg/L|mg/L|mg/L|mg/L|mg/L|mg/L ■g/L •g/L ■g/L ■g/L

AM I PM I I AM I PM 1 1 AM 1 PM I I AM I PM AM I PM I AM I PM AM ==== I I ==== I ==== I =„= I I ==== I ==== !====! ==== I ==== j ==== ====I====I==== I I I I I I I I I I I I 080CT01 1.3011.2811.9410.99 11.00|1.5611.4811.4912.2810.95|X 1.00|X 0.98|0.90|X 0.97 1 .09 X 1 .02 1.01 I__ I I__ I I__ I__ I__ 1 I__ __ I__ __ I__ I__ I I I I I I I I I I I I 090CT01 1 .32 11.3811.92 11.14|1.04|1.63|1.54|1.43|2.31|0.95|X 0.94|X 0.97|1.01|X 0.96 1 .07 X 1 .00 1 .00 I__ I I I, I__ I I__ I__ I__ __ I__ __ I I__ I I I , I I I I I I I I I 100CT01 1.50|1.48|1.95|1.09|0.92|1.62|1.45|1.51|2.26|0.96|X 1.14|X 0.9711.051X 0.97 1 .24 X 0.98 1.02 __ I 1__ I__ I I__ I I__ I I__ __ I__ I__ I__ I I I I I I I I I I I I 110CT01 1.38|1.4211.9811.0410.9611.5711.4511.44 12.2810.92|X 1.00|X 0.97|0.981X 0.97 1.24 X 1.00 0.99 __ I__ I I I I__ I__ I I__ I I__ __ I__ __ I__ I__ I I I I I I I I I I I I I 120CT01 1.40|1.44|2.02|1.00|0.94|1.61|1.40|1.41|2.25|0.90|X 0.98|X 0.9810.961X 0.93 1 .27 X 1 .09 1 .05 I, I__ I I__ I__ I I__ I__ I I __ I__ __ I I__ I I I I I I I I I I I I I 130CT01 1.4211.4412.0111.03|0.94|1.4911.40|1.4012.49|0.83|X 1.02|X 0.9711.00|X 0.97 1.18 X 1.01 0.81 __ I__ I I I I__ I__ I__ I I__ I __ I__ __ I__ I__ I I I I I I I I I I I I I 140CT01 1.4711.4011.6111.0410.9612.0311.3811.3B12.4510.801X 1.04|X 0.9711.10|X 0.97 1.19 X 1.03 0.99 I I I__ I__ I I I__ I__ I I__ __ I__ I I__ BX3, BX32, BX58 analyses done at Central Laboratory Inclusion of results does not explicitly imply certification for all analytes by NYS DOH ELAP.

OPERATION COMMENTS & SUMMARY ON DOWN TIME Reported By

Date System Treatment Process Time Down Reason Time On Total Time Down

f

NYC-WTC_000070919