Granite Oaks Water Users Association
Annual Drinking Water Quality Report For 2009 - Issued June 2010
The Arizona Department of Environmental Quality requires that a report containing information on water quality test results from the previous calendar be sent to customers annually. This report is prepared in compliance with that regulation. According to ADEQ regulations, some required tests are performed more frequently than others. Sampling for some contaminants are performed no more frequently than every three years. Test data included in the report are from the most recent test(s) as of the end of 2009, and only for the parameters detected. None of the other 60+ parameters were detected.
GOWUA Water Sampling Schedule is as follows:
- Total Coliform is conducted monthly.
- Nitrate-Nitrite is conducted annually. Last test was conducted in 2009
- TTHM-HAA is conducted quarterly. Last test was conducted in 2009
- Lead/Copper is to be conducted every three years during the summer between the months of June and September. The last test was conducted in 2009; ten samples were pulled. The number of samples required is based upon the current population served, the samples required is 10 samples. Based upon the past sampling results there has never been a problem with the lead and copper analysis meeting the EPA standards. Lead has never been detected and as seen in the table below the copper level was also well below the maximum contaminate level. The next sampling period will be in 2011.
- Additional required sampling is provided by MAP (Monitoring Assistance Program of ADEQ) and sampled every 3 years. This last test was conducted in 2006.
Granite Oaks water is provided by three wells, which draw from the local aquifer of fractured volcanics. In 2009, the Granite Oaks Water Users Association did not exceed any of the federally mandated Maximum Contaminant Levels or Action levels.
Fann Environmental, LLC currently maintains the water system for the Granite Oaks Water Users Association. Please contact Jim Muylle at (928) 713-9397 if you have any questions concerning this report. Fann routinely monitors for constituents in your drinking water according to federal and state laws. As water travels over the land or underground, it can pick up substances or contaminants such as microbes, inorganic and organic chemicals, and radioactive substance. Drinking water, including bottled water, may reasonably be expected to contain at least small amounts of some contaminants. The presence of contaminants does not necessarily indicate that water poses a health risk. More information about contaminants and potential health effects can be obtained by calling the Environmental Protection Agency's Safe Drinking Water Hotline (800-426-4791).
Granite Oaks Water User Association-Board of Directors holds periodic meetings concerning the operation of the water company that could have an impact on water quality. Customers and Shareholders are welcome at these meetings. If you would like to attend, or would like more information, contact the Business Office at (928) 583-0655.
A draft Source Water Assessment Report for this system has been prepared by the Arizona Department of Environmental Quality. This report assesses the drinking water source(s) of Granite Oaks Water Users Association. Based on the information available on the hydrogeologic setting and the adjacent land uses that are in specified proximity of the drinking water source(s) of this public water system, the department has given a low risk designation for the degree to which this public water system drinking water source(s) are protected. For a complete copy of this report, contact the Business Office at (928) 583-0655.
The following information by EPA is required:
POTENTIAL CONTAMINANTS THAT MAY BE PRESENT IN SOURCE WATER INCLUDE
Microbial contaminants, such as viruses and bacteria, which may come from sewage treatment plants, septic systems, agricultural livestock operations, and wildlife.
Inorganic contaminants, such as salts and metals, which can be naturally occurring or result from urban storm runoff, industrial or domestic wastewater discharges, oil and gas productions, mining or farming.
Pesticides and herbicides, which may come from a variety of sources such as agriculture, urban stormwater runoff, and residential uses. Organic chemical contaminants, including synthetic and volatile organic chemicals, which are by products of industrial processes and petroleum productions, and can also come from gas stations, urban stormwater runoff, and septic systems.
Organic chemical contaminants, including synthetic and volatile organic chemicals, which are by-products or industrial processes and petroleum production, and can also come from gas stations, urban stormwater runoff, and septic systems.
Radioactive contaminants, which can be naturally occurring or be the result of oil and gas production and mining activities. .
In order to ensure that tap water is safe to drink, EPA prescribes regulations which limit the amount of certain contaminants in water provided by public water systems. Food and Drug Administrations (FDA) regulations establishlimits for contaminants in bottled water which must provide the same protection for public health.
Some people may be more vulnerable to contaminants in drinking water than the general population. Immuno-compromised persons such as persons with cancer undergoing chemotherapy, persons who have undergone organ transplants, people with HIV/AIDS or other immune system disorders, some elderly, and infants can be particularly at risk from infections. These people should seek advice about drinking water from their health care providers. EPA/CDC guidelines on appropriate means to lessen the risk of an infection by Cryptosporidium and other microbial contaminants are available from the Safe Drinking Water Hotline (800-426-4791).
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