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Chandler, AZ Water Quality Report

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Sources Of Drinking Water in Chandler, Arizona

Where does Scottsdale get its water from? As Chandler's population continues to grow, the demand for water also increases. Water is a finite resource and none of it should be wasted. All the fresh water that will ever be created is already on the earth's surface or stored underground in aquifers. Chandler's water basically comes from three sources.

  1. Surface Water
    This is water that comes from rain and snowmelt on the Salt River Project watershed and collects in lakes and reservoirs north of our valley. It makes its way to us via streams, rivers and canals. Some water comes from as far as 1,500 miles away in the Colorado River and CAP canal.
     
  2. Groundwater
    The most pure water is pumped from deep in the ground via underground wells. The geology of the ground allows water to collect in underground beds of saturated soil or rock that yield significant quantities of water called aquifers.
     
  3. Reclaimed Water
    Treated, recycled wastewater is used on golf courses, landscapes and in industry. Reclaimed water is a valuable water resource because it reduces demands on groundwater sources making it one of the most significant water conservation tools.

Is Chandler's water safe to drink?

Source: City of Chandler

Contaminants Found in Chandler's Water Supply

(Detected above health guidelines)

Arsenic

Arsenic is a potent carcinogen and common contaminant in drinking water. Arsenic causes thousands of cases of cancer each year in the U.S. Click here to read more about arsenic.

Chromium (hexavalent)

Chromium (hexavalent) is a carcinogen that commonly contaminates American drinking water. Chromium (hexavalent) in drinking water may be due to industrial pollution or natural occurrences in mineral deposits and groundwater. Read more about chromium (hexavalent).

Radiological contaminants

This utility detected Uranium. Radiological contaminants leach into water from certain minerals and from mining. Drinking water contamination with radioactive substances increases the risk of cancer and may harm fetal development.

Total trihalomethanes (TTHMs)

Trihalomethanes are cancer-causing contaminants that form during water treatment with chlorine and other disinfectants. The total trihalomethanes group includes four chemicals: chloroform, bromodichloromethane, dibromochloromethane and bromoform.  

Fluoride

Fluoride occurs naturally in surface and groundwater and is also added to drinking water by many water systems. The fluoride that is added to water is not the naturally occurring kind, the main chemicals used to fluoridate drinking water are known as “silicofluorides” (i.e., hydrofluorosilicic acid and sodium fluorosilicate). Silicofluorides are not pharmaceutical-grade fluoride products; they are unprocessed industrial by-products of the phosphate fertilizer industry (Gross!). Since these silicofluorides undergo no purification procedures, they can contain elevated levels of arsenic — more so than any other water treatment chemical. In addition, recent research suggests that the addition of silicofluorides to water is a risk factor for elevated lead exposure, particularly among residents who live in homes with old pipes.

Potential Health Effects of Consuming These Contaminants

Health risks of Arsenic in excess of the health guidelines

Cancer: The health guideline of 0.004 ppb for arsenic was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer. 

Health risks of Chromium (hexavalent) in excess of the health guidelines

Cancer: The health guideline of 0.02 ppb for chromium (hexavalent) was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.

Health risks of Radiological contaminants in excess of the health guidelines

Cancer: This utility detected Radium, combined (-226 & -228), Radium-226, Radium-228 & Uranium. Radiological contaminants leach into water from certain minerals and from mining. Drinking water contamination with radioactive substances increases the risk of cancer and may harm fetal development.

Health risks of Total trihalomethanes (TTHMs) in excess of the health guidelines 

Cancer: The health guideline of 0.8 ppb for trihalomethanes was defined by the California Office of Environmental Health Hazard Assessment as a draft public health goal, the level of drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.

Health risks of fluoride in excess of health guideline  

No standards exist for fluoride in water but fluoride is considered by many to be a neurotoxin.

Contaminant Levels Compared to Other Regions

Arsenic

 - Health Guideline: 0.004 ppb

 - National: 1.33 ppb

 - State: 5.02 ppb

 - Chandler, AZ: 5.02 ppb

Chromium (hexavalent)

 - Health Guideline: 0.02 ppb

 - National: 0.782 ppb

 - State: 4.69 ppb

 - Chandler, AZ: 5.21ppb

Radiological Contaminants

 - No standard exists for this contaminant which cannot be good.

Total Trihalomethanes (TTHMs)

 - Health Guideline: 0.8 ppb

 - State: 13.6 ppb

 - National: 23.4 ppb

 - Chandler, AZ: 52.1 ppb

Fluoride

- Legal Limit: 4 ppb

 - State: 0.776 ppb

 - National: 0.440 ppb

 - Chandler, AZ: 0.588 ppb

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April Jones

A hiker, blogger, and water quality expert...

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