Jump to main content.

EF/ ICR Logo Levels of Treated Water Total Trihalomethanes for MICHIGAN
OCTOBER - DECEMBER 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.




Ann Arbor Water Treatment Plant

Water Type - SURFACE WATER
(Tr eated Water)

Plant Name Plant ID Water Type Quarter Total Trihalomethanes Concentration (ppb)
Ann Arbor Water Plant 411 Surface Water OCT 1997 - DEC 1997 1.5



City of Detroit Water and Sewerage Dept

Water Type - SURFACE WATER
(Treated Water)

Plant Name Plant ID Water Type Quarter Tot al Trihalomethanes Concentration (ppb)
Northeast WTP 415 Surface Water OCT 1997 - DEC 1997 17.8
Southwest WTP 416 Surface Water OCT 1997 - DEC 1997 10
Springwells WTP 413 Surface Water OCT 1997 - DEC 1997 14.8
Water Works Park WTP 414 Surface Water OCT 1997 - DEC 1997 16.5



City of Grand Rapids Water System

Water Type - SURFACE WATER
(Treated Water)

Plant Name Plant ID Water Type Quarter Total Trihalomethanes Concent ration (ppb)
Lake Michigan Filtration Plant 418 Surface Water OCT 1997 - DEC 1997 41.8



Kalamazoo Department of Public Services

Water Type - GROUND WATER
(Treated Water)

Plant Name Plant ID Water Type Quarter Total Trihalomethanes Concentration (ppb)
Groundwater Treatment 419 Ground Water OCT 1997 - DEC 1997 5.4
Station 1 VOC Removal, Iron Removal 420 Ground Water OCT 1997 - DEC 1997 8.7



Lansing Board of Water and Light

NO DATA - Click here to find out why.



SAGINAW WATER TREATME NT PLANT

Water Type - SURFACE WATER
(Treated Water)

Plant Name Plant ID Water Type Quarter Total Trihalomethanes Concentration (ppb)
Saginaw Water Treatment Plant 423 Surface Water OCT 1997 - DEC 1997 32.6



Wyoming Utilities Department

Water Type - SURFACE WATER
(Treated Water)

Plant Name Plant ID Water Type Quarter Total Trihalomethanes Concentration (ppb)
Donald K. Shine WTP 424 Surface Water OCT 1997 - DEC 1997 19.7



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 Total Trihalomethanes?
View national data for the same month.

ICR Overview
Envirofacts Home Page

Local Navigation

Jump to main content.