Welcome to our Safe Drinking Water Report section. This report was prepared to meet the EPA's National Primary Drinking Water Regulation for Consumer Confidence Reports (CCR). A copy of this report is mailed to all City of Garland Utility Customers within their utility bills each year starting the first billing cycle in May. You can request additional copies or comment on this report by calling 972-205-3213.
Consumer Confidence Report (CCR), a report on water quality in Garland, Texas for 2007.
[This is a PDF file. In order to read it, you must have Adobe Reader installed on your computer, if not you can download the free version here. Adobe Reader]
For Drinking water quality analysis questions
call 972-205-3213.
Water Hardness: Info from Analysis Report
Hardness is caused by compounds of calcium and magnesium, and by a variety of other metals. General guidelines for classification of waters are as follows:
| Classification |
mg/L as CaCO3 |
grains/gal |
| Soft |
0 - 17 |
0 - 1 |
| Slightly Hard |
17 - 60 |
1 - 3.5 |
| Moderately Hard |
60 - 120 |
3.5 - 7.0 |
| Hard |
120 - 180 |
7.0 - 10.5 |
| Very Hard |
180 & Over |
10.5 & Over |
Garland's Hardness Average In 2005: 161 mg/L
Explanation of Hardness
Many industrial and domestic water users are concerned about the hardness of their water. Hard water requires more soap and synthetic detergents for home laundry and washing, and contributes to scaling in boilers and industrial equipment.
Patterns of hardness in the
United States are shown on the
map of accounting units at the bottom of the figure. Softest waters were in parts of the
New England, South Atlantic-Gulf,
Pacific Northwest, and
Hawaii regions. Moderately hard waters were common in many of the rivers of the
Tennessee,
Great Lakes,
Pacific Northwest, and
Alaska regions. Hard and very hard waters were found in some of the streams in most of the regions throughout the country. Hardest waters (greater than 1,000 mg/L) were measured in streams in
Texas,
New Mexico,
Kansas,
Arizona, and southern
California.
(From Briggs, J.C., and Ficke, J.F., 1977, Quality of Rivers of the United States, 1975 Water Year--Based on the National Stream Quality Accounting Network (NASQAN): U.S. Geological Survey Open-File Report 78-200, 436 p.)
Note to Readers
There are, however, several caveats about the nature, use, and interpretations of these data: (1) the data illustrated represent water hardness on a national and regional scale and must be so interpreted; (2) the 1975 data are not designed to be used to make local decisions or decisions on the scale of individual homeowner property; and (3) information that is directly relevant to water hardness and other chemical properties at a home or immediate locale should be provided by the local health agency, local water utility, or by the vendor of a local water-softening system.
Homeowners may refer to the following Web sites for additional information:
American Water Works AssociationEPA's "Local Drinking Water Information"EPA's "Surf Your Watershed"EPA's "Texas Drinking Water"