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Sandy Springs, Roswell, Alpharetta, Milton, Johns Creek, North Fulton County Water Quality Report

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Sources Of Drinking Water in Roswell, Sandy Springs, Milton, Johns Creek, Alpharetta, North Fulton County, Georgia

The City of Roswell’s water comes from two sources. The primary source is the Roswell Water Treatment Plant in Roswell. Water for this facility is withdrawn from the Big Creek Watershed. Supplemental water is purchased by the City from the North Fulton/Atlanta Treatment Plant in Alpharetta. The source for this plant is the Chattahoochee River. Since the City has two sources, Roswell’s system is classified as a“blended water source.”

The residents of the City of Alpharetta, Milton, Mountain Park & Johns Creek receive their water supply from the Atlanta – Fulton County Water Treatment Plant (AFCWTP), which is located in the City of Johns Creek. Sandy Springs purchases its water from the City of Atlanta and receives some from Fulton County Water Treatment Plant.

Contaminants Found in North Fulton County's Water Supply

(Detected above health guidelines)

Bromodichloromethane

Bromodichloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromodichloromethane and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy.

Chloroform

Chloroform, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Chloroform and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy.

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.

Dibromochloromethane

Dibromochloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water.

Dichloroacetic acid

Dichloroacetic acid, one of the group of five haloacetic acids regulated by federal standards, is formed when chlorine or other disinfectants are used to treat drinking water. Haloacetic acids and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy.

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.

Trichloroacetic acid

Trichloroacetic acid, one of the group of five haloacetic acids regulated by federal standards, is formed when chlorine or other disinfectants are used to treat drinking water. Haloacetic acids and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. 

Potential Health Effects of Consuming These Contaminants

Health risks of bromodichloromethane in excess of health guideline

Cancer: The health guideline of 0.4 ppb for bromodichloromethane was defined by the California Office of Environmental Health Hazard Assessment as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

Health risks of chloroform in excess of health guideline

Cancer: The health guideline of 1 ppb for chloroform was defined by the California Office of Environmental Health Hazard Assessment as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

Health risks of chromium (hexavalent) in excess of health guideline

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 dichloroacetic acid in excess of health guideline

Cancer: The health guideline of 0.7 ppb for dichloroacetic acid was defined by the Environmental Protection Agency as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

Health risks of trihalomethanes in excess of health guideline

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 trichloroacetic acid in excess of health guideline

Cancer: The health guideline of 0.5 ppb for trichloroacetic acid was defined by the Environmental Protection Agency as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

Health risks of dibromochloromethane  in excess of health guidelines

Cancer & Birth Defects: Dibromochloromethane and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy.

Water Contaminant Levels in North Fulton County, Georgia Compared to Other Regions

Bromodichloromethane

 - Health Guideline: 0.4 ppb

 - State: 1.78 ppb

 - National: 4.37 ppb

- North Fulton County, GA: 6.67 ppb

Chloroform

 - Health Guideline: 1.0 ppb

 - State: 6.66 ppb

 - National: 11.4 ppb

 - North Fulton County, GA: 27.1 ppb

Chromium (hexavalent)

 - Health Guideline: 0.02 ppb

- State: 0.140 ppb

 - North Fulton County, GA: 0.146 ppb

 - National: 0.782 ppb

Dibromochloromethane 

 - Health Guideline: 0.7 ppb

 - State: 0.716 ppb

 - North Fulton County, GA: 0.875 ppb

 - National: 2.99 ppb

Dichloroacetic acid

 - Health Guideline: 0.7 ppb

 - State: 3.19 ppb

 - National: 6.00 ppb

 - Cobb County, GA: 11.6 ppb

Total trihalomethanes (TTHMs)

 - Health Guideline: 0.8 ppb

 - State: 11.8 ppb

 - National: 23.4 ppb

 - North Fulton County, GA: 34.6 ppb

Trichloroacetic acid

 - Health Guideline: 0.5 ppb

 - State: 3.65 ppb

 - National: 4.93 ppb

 - North Fulton County, GA: 11.6 ppb

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April Jones

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

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