Source Water (Untreated) Levels of Total Coliform for
San Francisco Water Department

Water System Total Coliform Report

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

Source Water (Untreated) Levels of Total Coliform for Blended Water from Two Water Treatment Plants

This water represents water from more than one treatment plant.

NO DATA - Click here to find out why.

Source Water (Untreated) Levels of Total Coliform for Hetch Hetchy Water Treatment Plant

Water Type	Month	Total Coliform Level (Total Coliforms/100mL)
Surface Water	JUL 1997	17
Surface Water	AUG 1997	8
Surfa ce Water	SEP 1997	4
Surface Water	OCT 1997	30
Surface Water	NOV 1997	23
Surface Water	DEC 1997	4
Surface Water	JAN 1998	17
Surface Water	FEB 1998	14
Surface Water	MAR 1998	4
Surface Water	APR 1998	2
Surface Water	MAY 1998	2
Surface Water	JUN 1998	4
Surface Water	JUL 1998	2
Surface Water	AUG 1998	17
Surface Water	SEP 1998	70
Surface Water	OCT 1998	21
Surface Water	NOV 1998	23
Surface Water	DEC 1998	13

Source Water (Untreated) Levels of Total Coliform for Harry Tracy Water Treatment Plant

Water Type	Month	Total Coliform Level (Total Coliforms/100mL)
Surface Water	JUL 1997	0
Surface Water	AUG 1997	0
Surface Water	SEP 1997	4
Surface Water	OCT 1997	23
Surface Water	NOV 1997	7
Surface Water	DEC 1997	4
Surface Water	JAN 1998	30
Surface Water	FEB 1998	30
Surface Water	MAR 1998	4
Surface Water	APR 1998	2
Not Reported	MAY 1998	NO DATA
Not Reported	JUN 1998	NO DATA
Not Reported	JUL 1998	NO DATA
Surface Water	AUG 1998	11
Not Reported	SEP 1998	0
Surface Water	OCT 1998	0
Surface Water	NOV 1998	0
Surface Water	DEC 1998	0

Source Water (Untreated) Levels of Total Coliform for Sunol Valley Water Treatment Plant

Water Type	Month	Total Coliform Level (Total Coliforms/100mL)
Not Reported	JUL 1997	NO DATA
Surface Water	AUG 1997	4
Surface Water	SEP 1997	2
Surface Water	OCT 1997	180
Surface Water	NOV 1997	9
Surface Water	DEC 1997	130
Surface Water	JAN 1998	2
Surface Water	FEB 1998	900
Surface Water	MAR 1998	50
Surface Water	APR 1998	22
Surface Water	MAY 1998	8
Surface Water	JUN 1998	0
Surface Water	JUL 1998	17
Surface Water	AUG 1998	0
Surface Water	SEP 1998	11
Surface Water	OCT 1998	4
Surface Water	NOV 1998	4
Surface Water	DEC 1998	4

How does this utility's source water compare to source waters nationally for coliform? Click on "view report" to see the state and national levels of total coliform.

Month	State Report	National Report
July 1997	view report	view report
Aug 1997	view report	view report
Sep 1997	v iew report	view report
Oct 1997	view report	view report
Nov 1997	view report	view report
Dec 1997	view report	view report
Jan 1998	view report	view report
Feb 1998	view report	view report
Mar 1998	view report	view report
Apr 1998	view report	view report
May 1998	view report	view report
Jun 1998	view re port	view report
Jul 1998	view report	view report
Aug 1998	view report	view report
Sep 1998	view report	view report
Oct 1998	view report	view report
Nov 1998	view report	view report
Dec 1998	view report	view report

ICR Overview

Envirofacts Home Page