News

Contaminant and

Unit of Measurement

Dates of sampling

(mo/yr)

Violation YIN

Level

Detected

Range of Results

MCLG

MCL

Likely Source of Contamination

 

Barium (ppm)

05 / 2018

N

0.0152

N/A

2

2

Discharge of drilling wastes; discharge from metal refineries; erosion of natural deposits

 

Chromium (ppb)

05 / 2018

 

1.5

N/A

100

100

Discharge from steel and pulp mills; erosion of natural deposits

 

Fluoride (ppm)

05 / 2018

 

0.396

N/A

4

4.0

Erosion of natural deposits; discharge from fertilizer and aluminum factories. Water additive which promotes strong teeth when at the o timum level of 0.7 ppm

 

Sodium (ppm)

05 / 2018

 

11.1

N/A

N/A

160

Salt water intrusion, leaching from

 

Nickel (ppb)

05 / 2018

 

2.5

N/A

N/A

100

Pollution from mining and refining operations. Natural occurrence in soil

 

Nitrate (as Nitrogen) (ppm)

04 / 2020

N

0.3410

N/A

10

10

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

 
   

Disinfectant and

Unit of Measurement

Dates of sampling (mo./yr.)

MRDL Violation YIN

Level

Detected

Rangé of Results

MRDLG

MRDL

Likely Source of Contamination

 

Ch101ine (ppm)

Monthly 2020

 

2.74

2.07-2.95

4

4.0

Water additive used to control microbes

 

Stage 2 Disinfectants and Disinfection By-ProduĂ©ts                    

 

Contaminant and

Unit of Measurement

Dates of sampling (mo/yr)

MCL Violation (Y/N)

Detected

Range of Results

MCLG

MCL

Likely Source of

Contamination

 

Total Trihalomethanes

(TTHM) System (ppb)

Quarterly 2020

 

59.58

37.4 -58 9

 

80

By-product of drinking water disinfection

 

Haloacetic Acids (HAAS) (ppb)

Quarterly 2020

 

23.65

    10.4        0

N/A

60

By-product of drinking water disinfection

 

Lead and Co

   

Contaminant and

Unit of Measurement

Dates of sampling (mo./yr.)

AL Exceeded (YIN)

Percentile Result

No. of sampling sites exceeding the AL

MCLG

(Action

Level

Likely Source of

Contamination

Copper (tap water) (ppm)

07 / 2019

 

0.0579

0/20

1.3

1.3

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

                                                     
 
   

 

Ifpresent, elevated levels of lead can cause serious health problems, especially for pregnant women and young children. Lead in drinking water is primarily from materials and components associated with service lines and home plumbing. Big Bend Water Authority is responsible for providing high quality drinking water, but cannot control the variety of materials used in plumbing components. When your water has been sitting for several hours, you can minimize the potential for lead exposure by flushing your tap for 30 seconds to 2 minutes before using waterfor drinking or cooking. Ifyou are concerned about lead in your water, you may wish to have your water tested. Information on lead in drinking water, testing methods, and steps you can take to minimize exposure is availablefrom the Safe Drinking Water Hotline or at http://www.epa.gov/safewater/lead.