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EF/ ICR Logo Levels of Treated Water Total Trihalomethanes for NEW YORK
OCTOBER - DECEMBER 1998


REMINDER: Data Purpose: The ICR data were collected as part of a national research project to support development of national drinking water standards. They should NOT be used to determine local water systems compliance with drinking water standards, nor should they be used to make personal judgements about individual health risks.

Units: Sample measurements are taken in micrograms per Liter (ug/L) and are regulated in milligrams per Liter (mg/L). A microgram per Liter is equivalent to one contaminant part per billion (ppb). A ppb can be thought of as one grain of salt in a swimming pool. Data for Total Trihalomethanes, haloacetic acids 5, and bromate are presented in ppb. 1 mg/L = 1000 ug/L, or 0.080 mg/L = 80 ug/L = 80 ppb, which happens to be the TTHM standard in the Stage 1 DBP Rule.

Calculation in Regulations is Different: Comparisons with compliance calculations based on the existing Total Trihalomethanes standard in CFR Part 141.30 may not be warranted since the standard i s based on an annual average of public water system quarterly averages and not on treatment plant results as shown here. Also the results here are based on different types of samples.

Results of Zero: A result of zero may indicate that a sample was analyzed, but that the result was less than the lowest value that the analytical method can reliably report.




CITY OF ALBANY N.Y. DEPT. OF WATER

Water Type - SURFACE WATER
(Tr eated Water)

Plant Name Plant ID Water Type Quarter Total Trihalomethanes Concentration (ppb)
FEURA BUSH FILTRATION PLANT 487 Surface Water OCT 1998 - DEC 1998 54.6



City of Buffalo NY Division of Water

Water Type - SURFACE WATER
(Treated Water)

Plant Name Plant ID Water Type Quarter To tal Trihalomethanes Concentration (ppb)
Buffalo Water Filtration Plant 488 Surface Water OCT 1998 - DEC 1998 31.1



City of New York DEP

Water Type - GROUND WATER
(Treated Water)

Plant Name Plant ID Water Type Quarter Total Trihalomethanes Concentration (ppb)
NYC Groundwater 519 Ground Water OCT 1998 - DEC 1998 6.3

Water Type - SURFACE WATER
(Treated Water)

Plant Name Plant ID Water Type Quarter Total Trihalomethanes Concentration (ppb)
Catskill System 506 Surface Water OCT 1998 - DEC 1998 28.3
Croton System 507 Surface Water OCT 1998 - DEC 1998 40.2
Delaware System 721 Surface Water OCT 1998 - DEC 1998 25.4



City of Rochester Water Bureau

Water Type - SURFACE WATER
(Treated Water)

Plant Name Plant ID Water Type Quarter Total Trihalomethanes Concentration (ppb)
Hemlock Water Filtration Plant 514 Surface Water OCT 1998 - DEC 1998 53.6



City of Syracuse Department of Water

Water Type - SURFACE WATER
(Treated Water)

Plant Name Plant ID Water Type Quarter Total Trihalomethanes Concentration (ppb)
City of Syracuse Water Treatment Plant 512 Surface Water OCT 1998 - DEC 1998 18



City of Yonkers Water Bureau

NO DATA - Click here to find out why.



Erie County Water Authority

Water Type - SURFACE WATER
(Treated Water)

Plant Name Plant ID Water Type Quarter Total Trihalomethanes Concentration (ppb)
Sturgeon Point 489 Surface Water OCT 1998 - DEC 1998 34.7
Van de Water 490 Surface Water OCT 1998 - DEC 1998 30.5



Long Island Water Corporation

Water Type - GROUND WATER
(Treated Water)

Plant Name Plant ID Water Type Quarter Total Trihalomethanes Concentration (ppb)
Groundwater Treatment 493 Ground Water OCT 1998 - DEC 1998 1.2
Mill Road Plant 5 494 Ground Water OCT 1998 - DEC 1998 4.4
Plant 7 West Valley Stream 496 Ground Water OCT 1998 - DEC 1998 5.7



METROPOLITAN WATER BOARD

NO DATA - Click here to find out why.



Monroe County Water Authority

Water Type - SURFACE WATER
(Treated Water)

Plant Name Plant ID Water Type Quarter Total Trihalomethanes Concentration (ppb)
Shoremont Water Treatment Plant 491 Surface Water OCT 1998 - DEC 1998 31.3



NEW YORK WATER SERVICE CORP.

NO DATA - Click here to find out why.



ONONDAGA COUNTY WATER AUTHORITY

Water Type - SURFACE WATER
(Treated Water)

Plant Name Plant ID Water Type Quarter Total Trihalomethanes Concentration (ppb)
OCWA TREATMENT PLANT 513 Surface Water OCT 1998 - DEC 1998 42.7



Suffolk County Water Authority

Water Type - GROUND WATER
(Treated Water)

Plant Name Plant ID Water Type Quarter Total Trihalomethanes Concentration (ppb)
Blue Spuce Lane 517 Ground Water OCT 1998 - DEC 1998 0
College Road 516 Ground Water OCT 1998 - DEC 1998 .3
Green Belt Parkway 515 Ground Water OCT 1998 - DEC 1998 1.8
Woodchuck Hollow 518 Ground Water OCT 1998 - DEC 1998 0



United Water New Rochelle

NO DATA - Click here to find out why.



United Water New York

Water Type - SURFACE WATER
(Treated Water)

Plant Name Plant ID Water Type Quarter Total Trihalomethanes Concentration (ppb)
Lake DeForest Water Treatment Plant 508 Surface Water OCT 1998 - DEC 1998 51.4



Upper Mohawk Valley Regional Water Board

Water Type - SURFACE WATER
(Treated Water)

Plant Name Plant ID Water Type Quarter Total Trihalomethanes Concentration (ppb)
Hinckley Reservoir Water Treatment Plant 492 Surface Water OCT 1998 - DEC 1998 74.9



Results for mixed water (ground water and surface water) and purchased water can be found under water system summary reports.


How does this state's treated water compare to treated waters nationally for Total Trihalomethanes?
View national data for the same month.


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