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EF/ ICR Logo Treated Water Levels of Haloacetic Acids 5 (HAA5) for
City of Aurora


Water System Haloacetic Acids 5 Report
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.


Treated Water Levels of HAA5 for City of Aurora

Water Type Quarter Avg(HAA5) Concentration (ppb) Min(HAA5) Concentration (ppb) Max(HAA5) Concentration (ppb)
Mixed JUL 1997 - SEP 1997 19.4 15.2 26.1
Mixed OCT 1997 - DEC 1997 12.5 12 13.5
Mixed JAN 1998 - MAR 1998 16 14.5 17.5
Mixed APR 1998 - JUN 1998 16.8 13 18.5
Mixed JUL 1998 - SEP 1998 17.2 14.9 19
Mixed OCT 1998 - DEC 1998 16.7 16.5 17


How does this utility's treated water compare to treated waters nationally for Haloacetic Acids 5? Click on "view report" to see the state and national levels of Haloacetic Acids 5.

Quarter State Report National Report
JUL - SEP 1997 view report view report
OCT - DEC 1997 view report view report
JAN - MAR 1998 view report view report
APR - JUN 1998 view report view report
JUL - SEP 1998 view report view report
OCT - DEC 1998 view report view report


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