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EF/ ICR Logo Levels of Treated Water Total Trihalomethanes for PENNSYLVANIA
JULY - SEPTEMBER 1997


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.




Chester Water Authority

Water Type - SURFACE WATER
( Treated Water)

Plant Name Plant ID Water Type Quarter Total Trihalomethanes Concentration (ppb)
Octoraro Treatment Plant 557 Surface Water JUL 1997 - SEP 1997 55.8



City of Allentown

Water Type - SURFACE WATER
(Treated Water)

Plant Name Plant ID Water Type Quarter Total Trihalomethanes Concentration (ppb)
City of Allentown Water Treatment Plant 561 Surface Water JUL 1997 - SEP 1997 17.6



City of Bethlehem DPW

Water Type - SURFACE WATER
(Treated Water)

Plant Name Plant ID Water Type Quarter Total Trihalomethanes Concentration (ppb)
Bethlehem Water Treatment Plant 563 Surface Water JUL 1997 - SEP 1997 20.9



Erie City Water Authority

Water Type - SURFACE WATER
(Treated Water)

Plant Name Plant ID Water Type Quarter Total Trihalomethanes Concentration (ppb)
West Treatmrnt Plant 572 Surface Water JUL 1997 - SEP 1997 14.8



MUNICIPAL AUTHORITY OF WESTMORELAND CO.

Water Type - SURFACE WATER
(Treated Water)

Plant Name Plant ID Water Type Quarter Total Trihalomethanes Concentration (ppb)
INDIAN CREEK WATER TREATMENT PLANT 569 Surface Water JUL 1997 - SEP 1997 36.3



Metropolitan Lancaster Authority

Water Type - SURFACE WATER
(Treated Water)

Plant Name Plant ID Water Type Quarter Total Trihalomethanes Concentration (ppb)
Conestoga Treatment Plant 575 Surface Water JUL 1997 - SEP 1997 71.7
Susquehanna Treatment Plant 574 Surface Water JUL 1997 - SEP 1997 102.7



PA-American Water Co-Pittsburgh Area

Water Type - SURFACE WATER
(Treated Water)

Plant Name Plant ID Water Type Quarter Total Trihalomethanes Concentration (ppb)
E. H. Aldrich Station 566 Surface Water JUL 1997 - SEP 1997 88.9
Hays Mine Station 565 Surface Water JUL 1997 - SEP 1997 96.1



PAWC - Lake Scranton

Water Type - SURFACE WATER
(Treated Water)

Plant Name Plant ID Water Type Quarter Total Trihalomethanes Concentration (ppb)
Lake Scranton 706 Surface Water JUL 1997 - SEP 1997 35.5



Philadelphia Suburban Water Company

NO DATA - Click here to find out why.



Philadelphia Water Department

Water Type - SURFACE WATER
(Treated Water)

Plant Name Plant ID Water Type Quarter Total Trihalomethanes Concentration (ppb)
Baxter Treatment Plant 558 Surface Water JUL 1997 - SEP 1997 84.7
Belmont Treatment Plant 560 Surface Water JUL 1997 - SEP 1997 87.2
Queen Lane Treatment Plant 559 Surface Water JUL 1997 - SEP 1997 71.5



Pittsburgh Water and Sewer Authority

Water Type - SURFACE WATER
(Treated Water)

Plant Name Plant ID Water Type Quarter Total Trihalomethanes Concentration (ppb)
Allegheny River Water Treatment Plant 564 Surface Water JUL 1997 - SEP 1997 62.7



THE YORK WATER COMPANY

NO DATA - Click here to find out why.



WEST VIEW MUNICIPAL WATER AUTHORITY

Water Type - SURFACE WATER
(Treated Water)

Plant Name Plant ID Water Type Quarter Total Trihalomethanes Concentration (ppb)
NEVILLE ISLAND TREATMENT PLANT 567 Surface Water JUL 1997 - SEP 1997 59.3



WILKINSBURG-PENN JOINT WATER AUTHORITY

Water Type - SURFACE WATER
(Treated Water)

Plant Name Plant ID Water Type Quarter Total Trihalomethanes Concentration (ppb)
WILKINSBURG-PENN JOINT WATER AUTHORITY 568 Surface Water JUL 1997 - SEP 1997 95.9



Results for mix ed 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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