Annual Water Quality Report
A Water Quality Report presented to the citizens of Rockdale County by the May 2009
Department of Water Resources.
Este Informe contiene información muy importante – Favor de buscar ayuda de un amigo para que se lo interprete en Español.
Rockdale Continues to Earn State Approval on
Annual Report Contains
Important Information Relaxed Outdoor Watering Restrictions
Water Resources Newsletter The County successfully petitioned The water in Rockdale’s
contains valuable information about the Georgia Environmental reservoir comes from the
the water you consume, including Protection Division (EPD) in 2008 Middle Ocmulgee basin,
where it comes from, what water
quality tests indicate and what you
to allow for modified, less stringent which is not
should know about contaminants. water use restrictions. With a few experiencing the
We hope that you will take the time exceptions, all outdoor water uses same shortage as
to read this report. will continue to be allowed in the Middle
Rockdale on an odd/even basis, Chattahoochee basin that fills Lake
Rockdale Water Resources three days per week between Lanier. At full pool, the reservoir
operators at the County’s water
midnight and 10 a.m. Residents holds just under 5.1 billion gallons
treatment plant conduct more than
85,440 analysis per year to insure with odd numbered addresses may and is designed to have a safe yield
the quality of water delivered to the water on Tuesdays, Thursdays and 35 million gallons per day (mgd).
customers tap. Sundays, and those with even Actual usage last month averaged
numbered addresses may water on 284.1 million gallons.
Water Resources also maintains a Mondays, Wednesdays and
Drinking Water Contract with the Saturdays. Outdoor water use still prohibited
State of Georgia to monitor
compliance with the Environmental under Level IVc includes washing
Protection Agency Safe Drinking The EPD granted Rockdale hard surfaces, such as streets,
Water Regulations. The department approval of “Level IVc drought gutters, sidewalks and driveways
also is proud to announce that the response modification,” the least except when necessary for public
Georgia Environmental Protection stringent of the levels being allowed health and safety. Also, it is
Division considers our laboratory a in North Georgia. prohibited to use hydrants for any
“Laboratory of Excellence.”
purpose other than firefighting,
This Annual Report marks the tenth Prior to receiving the letter, flushing and for other public health
year that Rockdale Water Rockdale County was mandated by or safety reasons. More information
Resources has sent out a summary EPD to enforce Level IV drought on water use restrictions can be
of what is in the system’s drinking restrictions, the same level the found at www.gaepd.com.
water to all of our customers. If you state imposed on North Georgia
have questions regarding water
counties that rely on Lake Lanier to
quality that are not addressed in this
newsletter, please do not hesitate to meet their demands. Rockdale
contact the Rockdale Water County has its own water supply
Resources laboratory at 770-278- reservoir, Randy Poynter Lake on
7473. Big Haynes Creek, which is
currently at capacity.
How to Read This Report
PPM and PPM is parts per million and PPB is parts per billion. PPM corresponds to one penny in $10,000 or one minute in
two years. PPB corresponds to one penny in $10,000,000 or one minute in 2,000 years.
MCLG Maximum Contaminant Level Goal – The level of a known contaminant in drinking water below which there is no
known or expected risk to health. MCLGs allow for a margin of safety.
MCL Maximum Contaminant Level – The highest level of contaminant that is allowed in drinking water. MCLs are set as
close to the MCLGs as feasible using the best available treatment technology.
AL Action Level – The concentration of a contaminant, which, if exceeded, triggers a treatment or other requirement,
which a water system must follow.
NTU Nephelometric Turbidity Units – A measure of suspended material in water. Turbidity is measured by shining a
beam of light through water and measuring the angle at which the light is scattered by the suspended material. An
instrument called a Turbidimeter is used for this purpose.
TT Treatment Technique – A requirement process intended to reduce the level of a contaminant in drinking water.
Notes About Contaminants . . .
The sources of drinking water (both tap Radioactive contaminants, which can health care providers. EPA/CDC
and bottled water) include rivers, lakes, be naturally occurring or be the result guidelines on appropriate means to
streams, ponds, reservoirs, springs, of oil and gas production and mining lessen the risk of infection by
and wells. As water travels over the activities. Cryptosporidium and other microbial
surface of the land or through the contaminants are available from the
ground, it dissolves naturally occurring In order to ensure that tap water is safe Safe Drinking Water Hotline.
minerals and, in some cases, to drink, EPA prescribes regulations
radioactive material, and can pick up which limit the amount of certain What is Cryptosporidium?
substances resulting from the presence contaminants in water provided by Cryptosporidium (Crypto) is a one-
of animals or from human activity. public water systems. Food and Drug celled parasitic protozoan, which is
Contaminants that may be present in Administration regulations establish often found in water sources that
source water include the following: limits for contaminants in bottled water, receive runoff from animal waste.
which must provide the same Crypto can infect humans and have
Microbial contaminants, such as protection for public health. severe impacts on certain people
viruses and bacteria, which may come including organ transplant recipients,
from sewage treatment plants, septic Contaminants and Health Risk . . . immunocompromised persons, young
systems, agricultural love stock Drinking Water, including bottled water, children and persons undergoing
operations, and wildlife. may contain at least small amounts of cancer treatment. Rockdale uses
some contaminants. The presence of “Ozone” to address this concern.
Inorganic contaminants, such as contaminants does not necessarily
salts and metals, which can be indicate that water poses a health risk. A Note About Lead . . .
naturally occurring or result from urban More information about contaminants Infants and young children are typically
storm runoff, industrial or domestic and potential health effects can be more vulnerable to lead in drinking
wastewater discharges, oil and gas obtained by calling the EPA’s Safe water than the general population. It is
production, mining, or farming. Drinking Water Hotline (1-800-426- possible that lead levels at your home
4791). may be higher than at other homes in
Pesticides and herbicides, which your community as a result of materials
may come from a variety of sources Important Health Information . . . used in your homes plumbing. If you
such as agriculture, urban stormwater Some people may be more vulnerable are concerned about elevated lead
runoff, and residential uses. to contaminants in drinking water than levels in your home’s water, you may
the general population. wish to have your water tested. You
Organic chemical contaminants, Immunocompromised persons such as may also flush your tap water for 30
including synthetic and volatile organic persons with cancer undergoing seconds to two minutes before using it.
chemicals, which are by-products of chemotherapy, persons who have Additional information is available from
industrial processes and petroleum undergone organ transplants, people the Safe Drinking Water Hotline. In
production, and can also, come from with HIV/AIDS or other immune system order to ensure that tap water is safe to
gas stations, urban stormwater runoff, disorders, some elderly, and infants drink, the EPA prescribes regulations
and septic systems. can be particularly at risk from which limit the amount of certain
infections. These people should seek contaminants in water provided by
advice about drinking water from their public water systems.
Rockdale Water Resources
Detected Contaminants Table for Year 2008
Water System ID# 2470000 – Surface Water Sources; Big Haynes Creek, Randy Poynter Lake, Little Haynes Creek
Detected Inorganic Contaminants
Parameter Units MCL MCLG Detected Range Violation Typical Source
Fluoride PPM 4.0 4.0 0.70 – 0.90 No
Nitrate/Nitrite PPM 10.0 0 0- 0.31 No Runoff from Fertilizer
Iron* PPM 0.30 0 0- 0.07 No Naturally Occurring
Manganese* PPM 0.05 0 0- 0.01 No Naturally Occurring
Corrosion of household
Lead PPB AL 15 0 0- 13 No
AL Corrosion of household
Copper PPB 0 0- 470 No
1300 plumbing systems
Highest % or Lowest % of samples
Parameter Units MCL MCLG Violation Language or Typical
exceeding limits meeting limits
Coliforms are bacteria
that are naturally
present in the
Total environment and are
P/A samples 0 0 100 No
Coliforms used as an indicator
that other; potentially-
harmful, bacteria may
Fecal Human and Animal
P/A 0 0 0 100 No
Turbidity NTU TT N/A Highest value 0.10 100 No Soil Runoff
“Turbidity is a good measurement of the cloudiness of water. We monitor turbidity because it is a
good indicator of the effectiveness of the filtration system.”
Parameter Units MCL MCLG Average Detected Violation Typical Source
By-Product of drinking
Trihalomethanes PPB 80 0 52.9 32.7 –73.2 No
Total Haloacetic By-Product of drinking
PPB 60 0 21.4 12.8 – 30.1 No
Acids (THAA) water chlorination
• Secondary Contaminant (Aesthetic Issue Only)
Important Information Regarding Drinking Water
period. This program requires precise coordination with the
Monitoring Requirements Not Met for Lead and Copper customers, the water department and the state lab. In 2009,
Rockdale Water Resources (RWR) water system violated a for the next round of sampling, RWR will start notifying
drinking water reporting standard for the monitoring of lead participants in the month of May, to assure that this
and copper over the past compliance period. The violation requirement for compliance is met for the sampling period.
was not associated with actual test results that indicated the
presence of harmful levels that could have resulted in health For more information, contact Mr. Lee Pope, Water Plant
emergencies. The follow is actions taken by RWR to correct Manager, at 770-278- 7473.
Please share this information with anyone who drinks this
RWR is required to monitor the drinking water for specific system’s water, especially those who may not have received
contaminants on a regular basis. Results of regular monitoring this notice directly (for example, people in apartments,
are an indicator of whether or not the drinking water meets nursing homes, schools, and businesses).
health standards. During the monitoring period June 1, 2006
to September 30, 2006, RWR did not monitor properly for lead State Water System ID#: GA2470000.
and copper, and cannot be sure of the quality of the drinking
water during that time. Although samples were taken during
the sampling period year, they were collected late during the Important Notice to Residents of
months of October and November 2006.
What Should Citizens Do? Located in southeast Rockdale County, the
There is no action residents need to take at this time. Thornwood subdivision is not connected to
Rockdale’s water system. Rockdale Water
The table below lists the contaminant(s) RWR did not properly Resources purchases water from Newton County
test for during the last year testing was required, how often through a master meter, and water is resold to the
samples for this contaminant should be taken, how many residents of Thornwood. The sources are Lake
samples are taken, how many samples were actually taken, Varner and the Alcovy River, which are both surface
when samples should have been taken, and the date on which supplies.
follow-up samples were (or will be) taken.
Contaminant Required Number When all When
Jack Turner Dam at Randy Poynter Lake
sampling of samples samples
frequency samples should were or will The Rockdale County reservoir was constructed as a
taken have been be taken water supply reservoir for the Conyers-Rockdale Big
Haynes Impoundment Authority. The Authority was
Lead / Copper Once 30 10/2006 & created in 1987 by the General Assembly of the
every 3 6/1/2006- 11/2006 State of Georgia for the purpose of constructing the
years (taken late) water supply reservoir for Rockdale County. The
U.S. Army Corps of Engineers issued a permit to
build the lake in 1992. The land was acquired and in
What Happened and What is Being Done? November 1994 and ground was broken for the
RWR is required to conduct the sampling of lead and copper project.
once every three years or triennial monitoring in the months of
either June, July, August and /or September of the specific In April of 1998, the lake and dam were dedicated in
year. In 2006, the last year the sampling was performed, RWR a ceremony. Two years later, in April of 2000, the
failed to comply with the monitoring requirement timeframe of lake was open to the public for recreational use. In
sampling during the summer months. Although the sampling 2002 the county began using the reservoir as its
was conducted during October and November with no results water supply.
exceeding the 90th percentile action level, the system was
charged with a Public Notice Citation for sampling outside the In May of 2003, the reservoir was officially renamed
prescribed timeframe. This sampling program was delayed after the late County Commission Chairman, Randy
due to the logistics of replacing sampling sites and program Poynter.
participants that were no longer available during the evaluation