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EF/ ICR Logo Levels of Treated Water Haloacetic Acids 5 for WASHINGTON
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.

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 VANCOUVER

Water Type - GROUND WATER
(Treated Water)

Plant Name Plant ID Water Type Quarter Haloacetic Acids 5 Concentration (ppb)
LOWER ORCHARDS AQUIFER 692 Ground Water JUL 1997 - SEP 1997 0
UPPER ORCHARDS AQUIFER 693 Ground Water JUL 1997 - SEP 1997 0



City of Everett, Public Works Dept.

Water Type - SURFACE WATER
(Treated Water)

Plant Name Plant ID Water Type Quarter Haloacetic Acids 5 Concentration (ppb)
City of Everett Water Treatment Plant 686 Surface Water JUL 1997 - SEP 1997 39.7



City of Spokane

Water Type - GROUND WATER
(Treated Water)

Plant Name Plant ID Water Type Quarter Haloacetic Acids 5 Concentration (ppb)
Groundwater Treatment 690 Ground Water JUL 1997 - SEP 1997 0



Seattle Public Utilities

Water Type - SURFACE WATER
(Treated Water)

Plant Name Plant ID Water Type Quarter Haloacetic Acids 5 Concentration (ppb)
Landsburg Treatment Plant 688 Surface Water JUL 1997 - SEP 1997 21.6
Tolt Treatment Plant 689 Surface Water JUL 1997 - SEP 1997 73.6



Tacoma Public Utilities

Water Type - SURFACE WATER
(Treated Water)

Plant Name Plant ID Water Type Quarter Haloacetic Acids 5 Concentration (ppb)
Green River Headworks Purification Plant 691 Surface Water JUL 1997 - SEP 1997 24.7



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 haloacetic acids 5?
View national data for the same month.


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