Town of Ridgeway

2006 Annual Drinking Water Quality Report

 

            We're pleased to present to you this year's Annual Quality Water Report. This report is designed to inform you about the quality water and services we deliver to you every day. Our constant goal is to provide you with a safe and dependable supply of drinking water. We want you to understand the efforts we make to continually improve the water treatment process and protect our water resources. We are committed to ensuring the quality of your water. Our water source is produced from town wells and purchased from the Town of Winnsboro. If you have any questions about this report or concerning your water utility, please contact the town office at 337-2213. We want our valued customers to be informed about their water utility. If you want to learn more, please attend any of our regularly scheduled meetings. They are held on the second Wednesday of each month at town office center. Our Source Water Assessment Plan is available for your review at www.scdhec.gov/water/html/srcewtr.html  If you do not have internet access, please contact the town office at 337-2213 to make arrangements to review this document. 

 

              The Town of Ridgeway routinely monitors for constituents in your drinking water according to Federal and State laws. This table shows the results of our monitoring for the period of January 1st to December 31st, 2006As water travels over the land or underground, it can pick up substances or contaminants such as microbes, inorganic and organic chemicals, and radioactive substances.  All drinking water, including bottled drinking water, may be reasonably expected to contain at least small amounts of some constituents.  It's important to remember that the presence of these constituents does not necessarily pose a health risk.

 

              In this table you will find many terms and abbreviations you might not be familiar with. To help you better understand these terms we've provided the following definitions:

Non-Detects (ND) - laboratory analysis indicates that the constituent is not present.

Parts per million (ppm) or Milligrams per liter (mg/l) - one part per million corresponds to one minute in two years or a single penny in $10,000.

Parts per billion (ppb) or Micrograms per liter - one part per billion corresponds to one minute in 2,000 years, or a single penny in $10,000,000.

Action Level - the concentration of a contaminant that, if exceeded, triggers treatment or other requirements that a water system must follow.

Maximum Contaminant Level (MCL) - The “Maximum Allowed” (MCL) is the highest level of a contaminant that is allowed in drinking water.  MCLs are set as close to the MCLGs as feasible using the best available treatment technology.

Maximum Contaminant Level Goal (MCLG) -The “Goal”(MCLG) is the level of a contaminant in drinking water below which there is no known or expected risk to health.  MCLGs allow for a margin of safety.

Picocuries per liter (pCi/L) - picocuries per liter is a measure of the radioactivity in water.

Maximum Residual Disinfectant Level (MRDL) –  The highest level of a disinfectant allowed in drinking water.  There is convincing evidence that addition of a disinfectant is necessary for control of microbial contaminants.

Maximum Residual Disinfectant Level Goal (MRDLG) – The level of a drinking water disinfectant below which there is no known or expected risk to health.  MRDLGs do not reflect the benefits of the use of disinfectants to control microbial contaminants.

 

 

TEST RESULTS

 

Contaminant

Violation

Y/N

Level

Detected

Unit

Measurement

MCLG

MCL

Likely Source of Contamination

 

Inorganic Contaminants-Town of Ridgeway

 

Fluoride

2005

No

0.14

ppm

4

4

Erosion of natural deposits; water additive which promotes strong teeth; discharge from fertilizer and aluminum factories

 

Nitrate (as Nitrogen)

2005

No

0.041

ppm

10

10

Runoff from fertilizer use; leaching from septic tanks, sewage; erosion of natural deposits

 

Lead and Copper – Town of Ridgeway

 

Contaminant

Violation

Y/N

90th percentile

Unit

Measurement

Action Level

Sites over action level

Likely Source of Contamination

 

Copper

2006

 

No

0.068

Ppm

1.3

0

Corrosion of household plumbing systems; erosion of natural deposits; leaching from wood preservatives

 

Lead

2006

No

0.008

Ppm

15

0

Corrosion of household plumbing systems, erosion of natural deposits

 

Disinfectants and DBPs-Town of Ridgeway

 

 Haloacetic acids (HAAs)

2006

No

RAA

29

Range

9-44

ppb

60

0

By-product of drinking water disinfectant

 

TTHM3                                       [Total trihalomethanes]

2006

No

RAA

79

Range

51-104

ppb

80

0

By-product of drinking water chlorination

Chlorine

2006

No

HQA

0.56 Range

0.08 – 0.86

ppm

MRDL=

4

MRDLG =

4

Water additive used to control microbes

 

 

Radioactive Contaminates-Town of Ridgeway

 

Alpha Emitters

2005, G320001

No

4.02

pCi/1

0

15

Erosion of natural deposits

 

Inorganic Contaminants-Town of Winnsboro

 

Fluoride

2006

No

0.63

ppm

4

2

Erosion of natural deposits; water additive which promotes strong teeth; discharge from fertilizer and aluminum factories

 

Nitrate (as Nitrogen)

2006

No

0.22

ppm

10

10

Runoff from fertilizer use; leaching from septic tanks, sewage; erosion of natural deposits

                 

              

 

All sources of drinking water are subject to potential contamination by substances that are naturally occurring or man made. These substances can be microbes, inorganic or organic chemicals and radioactive substances. All 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 the 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 at 1-800-426-4791.

               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 infection by cryptosporidium and other microbiological contaminants are available from the Safe Drinking Water Hotline (800-426-4791). 

 

 

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