الفهرس 
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Abstract
Key words: Bacterial indicators, heavy metals, drinking water, bottled water,
swimming pools.
Sadat city is located in the northwest of Cairo city at 93 Km of the desert road
with an area of 500 km2.
The research aims are to assess the pollution load of bacterial water indicators,
and some heavy elements and its compatibility with the standards in Egypt. El-
Sadat City groundwater is the only source as drinking water, so it was collected
from the tap water, bottled water plants in the city and the swimming pools of
the city clubs. For identification of indicators of bacterial contamination of the
water distribution system in residential areas of the city, as well as various
industrial areas, bacterial contamination was detected through the studying
period from 10/2007 to 08/2008. Bacterial indicators that have been recorded
were total bacterial count, total coliform, fecal coliform and fecal streptocoliforms
in a manner that multiple tube methods with measuring free residual
chlorine. In the city’s bottled water plants, samples were examined from two
sources A & B in August of 2008 and the indicators that have been disclosed
are total bacterial count, total coliform and fecal coliform fecal streptocoliform
and Pseudomonas Aureginosa by multiple tube methods. In the same
way, the water samples collected from the city’s clubs (El-Nogoom and youth
center) through August 2008 were examined .
For the measurements of heavy metals, the water samples were collected from
the city and most of the water wells. The elements that measured were Lead -
Zinc - Cadmium - chromium - Copper by using the atomic absorption
spectrum, as well as the measurements of nitrite as indication of recent
pollution and measured the free residual chlorine in all bacteriological samples
that collected for examination in the period from 10/2006 to 11/2007.
The results of heavy metals in water samples were less than Egyptian standards
guidelines and therefore, water was safe for human uses. Also, the results of the
study showed that there were presence of pollution detected by the total
bacterial count, and total coliform in some residential areas. Also, in some
cases, facal coliform were detected in case of the absence of free residual
chlorine. In the case of free residual chlorine more or equal to 0.5 mg/l, there
were no signs of pollution. All water samples had no contamination with
Streptococcus facal bacteria. The bottled water was not contaminated with any
pollution indicators so, it complied with the Egyptian standards. The swimming
pools water samples were contaminated by all bacterial pollution indicators
such as total bacterial count, total coliform and fecal coliform fecal strepto
coliform and Pseudomonas Aureginosa in the absence of free residual chlorine
or low concentration( less than 0.5 ppm).