Consumer Confidence Report Water Quality Report-2017-ENG - Page 2

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Substance
Units
Avg .
Min .
Max .
MCL
MCLG
Possible Source
Atrazine
ppb
0.16
0.10
0.23
3
3
Runoff from herbicide used on row crops
Barium ppm 0.052 0.047 0.057 2 2 Naturally present Arsenic ppb 1.0 ND 1.0 10 10 Naturally present & runoff from herbicides Chromium ppb 1.1 ND 1.1 100 100 Naturally present & industrial sources Cyanide ppb 106 ND 106 200 200 Discharge from metal / plastic / fertilizer factories Bromate 3 ppb < 5 < 5 < 5 10 10 Byproduct of drinking water disinfection Chloramines 2 ppm 3.5 3.3 3.6 MRDL = 4 MRDLG = 4 Water additive used to control microbes Fluoride ppm 0.65 0.45 0.83 4 4 Water additive promoting strong teeth Nitrate as Nitrogen ppm 0.447 0.151 0.829 10 10 Runoff from fertilizers Nitrite as Nitrogen ppm 0.089 ND 0.499 1 1 Runoff from fertilizers Total Coliform 4 , 7 % ND 2.02 % 5 % NA Naturally present in the environment Total Organic Carbon ( TOC )
Naturally present in the environment PB Plant ( raw ) ppm 4.9 3.9 6.5 ( PB = Pierce-Burch Plant ) PB Plant ( drinking ) ppm 2.6 2.4 3.1 PB Removal ratio 5 % 1.4 % 1.3 % 1.5 % JK Plant ( raw ) ppm 4.7 4.2 5.3 ( JK = John F . Kubala Plant ) JK Plant ( drinking ) ppm 2.4 2.0 2.9 JK Removal ratio 5 % 1.3 % 1.2 % 1.4 % Total Trihalomethanes 2 ppb 10.2 8.6 11.8 80 NA By-product of drinking water chlorination Haloacetic Acids ( HAA5 ) 2 ppb 11.9 9.1 13.1 60 NA By-product of drinking water chlorination
Turbidity 6
Highest single measurement % of samples < 0.3 NTU
Table A . Regulated Substances . These substances are regulated or are required to be monitored and were detected in Arlington tap water in 2017 . Arlington had no violations of state or federal guidelines in 2017
NTU %
0.07 99.9 %
Action Level
0 99.9 %
0.34 100 %
TT = 1.0 TT = 95 %
0 NA
Soil runoff
No . Sites >
90 th
Substance
Units
Action Level
% -tile
Range
Possible Source
Lead ( 2015 ) 1
ppb
AL = 15
1
1.44
ND-46.8
Corrosion of household plumbing systems
Copper ( 2015 ) 1 ppm AL = 1.3 0 0.166 ND-0.49 Corrosion of household plumbing systems
Substance
PB Plant
2017
JK Plant
2015
Possible Source
Radium 228
pCi / L
1.43
< 1.0
5
NA
Decay of natural and man-made deposits
Beta / Photon Emitters
pCi / L
4.8
< 4.0
50
NA
Gross Alpha Particle Activity pCi / L < 2.0 < 2.0 15 NA
1
Instead of MCLs for lead and copper , EPA requires that 90 percent of water samples obtained from customers ’ taps contain less than the Action Level for each metal . Sampling is required every 3 years .
2
Compliance is based on a calculated annual average of all samples at routine sites .
3
Compliance is based on a calculated running annual average of the quarterly averages .
4
Coliform bacteria are used as indicators of microbial contamination of drinking water because they are easily detected and found in the digestive tract of warm blooded animals . While not themselves disease producers , they are often found in association with other microbes that
are capable of causing disease . Coliform bacteria are more hardy than many disease-causing organisms . Therefore their absence from water is a good indication that the water is bacteriologically safe for human consumption . The percentages shown represent the presence in samples in one month .
5
Removal ratio is the percent of TOC removed by the treatment process divided by the percent of TOC required by TCEQ to be removed . Based on running annual average of ratios .
6
Turbidity has no health effects . However , turbidity can interfere with disinfection and provide a medium for microbial growth . Turbidity may indicate the presence of
Testing for radiological substances required every 3 years .
disease-causing organisms , including bacteria , viruses and parasites that can cause symptoms such as nausea , cramps , diarrhea and associated headaches .
7
In 2017 , Tarrant Regional Water District analyzed all raw water sources for cryptosporidium and giardia each month . One of the samples taken during 2017 contained 0.09 organisms per liter for giardia . No cryptosporidium was found . Cryptosporidium is a pathogen which may be found in water contaminated by feces . Although filtration removes cryptosporidium and giardia , it cannot guarantee 100 % removal .
The Environmental Protection Agency ( EPA ) Safe Drinking Water Hotline
Drinking water , including bottled water , may reasonably be expected to contain at least small amounts of some contaminants . The presence of these contaminants does not necessarily indicate that water poses a health risk . In order to ensure that tap water is safe to drink , the EPA prescribes regulations that limit the amount of certain substances in water provided by public water systems .
More information about contaminants and potential health effects can be obtained by calling the Environmental Protection Agency ’ s ( EPA ) Safe Drinking Water Hotline at 800-426- 4791 or visiting the website at www . epa . gov / safewater .

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Table A. Regulated Substances. These substances are regulated or are required to be monitored and were detected in Arlington tap water in 2017. Arlington had no violations of state or federal guidelines in 2017 Substance Units Avg. Min. Max. MCL Atrazine ppb 0.16 0.10 0.23 3 3 Runoff from herbicide used on row crops Barium ppm 0.052 0.047 0.057 2 2 Naturally present Arsenic ppb 1.0 ND 1.0 10 10 Naturally present & runoff from herbicides Chromium ppb 1.1 ND 1.1 100 100 Naturally present & industrial sources Cyanide ppb 106 ND 106 200 200 Discharge from metal/plastic/fertilizer factories Bromate 3 ppb <5 <5 <5 10 10 Chloramines 2 ppm 3.5 3.3 3.6 Fluoride ppm 0.65 0.45 0.83 4 4 Water additive promoting strong teeth Nitrate as Nitrogen ppm 0.447 0.151 0.829 10 10 Runoff from fertilizers Nitrite as Nitrogen ppm 0.089 ND 0.499 1 1 Runoff from fertilizers ND 2.02% 5% NA Total Coliform 4,7 % MCLG Possible Source Byproduct of drinking water disinfection MRDL=4 MRDLG=4 Water additive used to control microbes Naturally present in the environment Total Organic Carbon (TOC) Naturally present in the environment PB Plant (raw) ppm 4.9 3.9 6.5 PB Plant (drinking) ppm 2.6 2.4 3.1 PB Removal ratio 5 % 1.4% 1.3% 1.5% JK Plant (raw) ppm 4.7 4.2 5.3 JK Plant (drinking) ppm 2.4 2.0 2.9 JK Removal ratio 5 % 1.3% 1.2% 1.4% Total Trihalomethanes 2 ppb 10.2 8.6 11.8 80 NA By-product of drinking water chlorination Haloacetic Acids (HAA5) 2 ppb 11.9 9.1 13.1 60 NA By-product of drinking water chlorination NTU % 0.07 99.9% 0 99.9% 0.34 100% TT = 1.0 TT = 95% 0 NA Soil runoff Substance Units Action Level No. Sites > Action Level 90 th %-tile Lead (2015) 1 ppb AL = 15 1 1.44 ND-46.8 Corrosion of household plumbing systems Copper (2015) 1 ppm AL = 1.3 0 0.166 ND-0.49 Corrosion of household plumbing systems (PB = Pierce-Burch Plant) (JK = John F. Kubala Plant) Turbidity 6 Highest single measurement % of samples < 0.3 NTU PB Plant JK Plant Substance 2 Possible Source 2017 2015 Radium 228 pCi/L 1.43 <1.0 5 NA Decay of natural and man-made deposits Beta/Photon Emitters pCi/L 4.8 <4.0 50 NA Gross Alpha Particle Activity pCi/L <2.0 <2.0 15 NA Testing for radiological substances required every 3 years. Instead of MCLs for lead and copper, EPA requires that 90 percent of water samples obtained from customers’ taps contain less than the Action Level for each metal. Sampling is required every 3 years. 2 Compliance is based on a calculated annual average of all samples at routine sites. 3 Compliance is based on a calculated running annual average of the quarterly averages. 4 Coliform bacteria are used as indicators of microbial contamination of drinking water because they are easily detected and found in the digestive tract of warm blooded animals. While not themselves disease producers, they are often found in association with other microbes that 1 Range Possible Source are capable of causing disease. Coliform bacteria are more hardy than many disease-causing organisms. Therefore their absence from water ₯́„½½₯Ή‘₯…Ρ₯½Έ)Ρ‘…Ёё”έ…ѕȁ₯́‰…Ρ•Ι₯½±½₯…±±δΝ…™”™½Θ)‘Υ΅…Έ½ΉΝΥ΅ΑΡ₯½ΈΈQ‘”Α•Ι•ΉΡ…•Μ)Ν‘½έΈΙ•ΑΙ•Ν•ΉΠΡ‘”ΑΙ•Ν•Ή”₯ΈΝ…΅Α±•Μ)₯Έ½Ή”΅½ΉΡ Έ(Τ)I•΅½Ω…°Ι…Ρ₯Ό₯́ё”Α•Ι•ΉΠ½˜Q= )Ι•΅½Ω•‰δΡ‘”ΡΙ•…Ρ΅•ΉΠΑΙ½•Ν́‘₯Ω₯‘•)‰δΡ‘”Α•Ι•ΉΠ½˜Q= Ι•ΕΥ₯Ι•‰δQ D)ΡΌ‰”Ι•΅½Ω•Έ …Ν•½ΈΙΥΉΉ₯Ήœ…ΉΉΥ…°)…Ω•Ι…”½˜Ι…Ρ₯½ΜΈ(Ψ)QΥΙ‰₯‘₯Ρ䁑…́ΉΌ‘•…±Ρ •™™•ΡΜΈ!½έ•Ω•Θ°)ΡΥΙ‰₯‘₯Ρ䁍…Έ₯ΉΡ•Ι™•Ι”έ₯Ρ ‘₯Ν₯Ή™•Ρ₯½Έ…Ή)ΑΙ½Ω₯‘”„΅•‘₯Υ΄™½Θ΅₯Ι½‰₯…°Ι½έΡ Έ)QΥΙ‰₯‘₯Ρ䁡…δ₯Ή‘₯…Ρ”Ρ‘”ΑΙ•Ν•Ή”½˜)‘₯Ν•…Ν”΅…ΥΝ₯Ήœ½Ι…Ή₯Ν΅Μ°₯Ή±Υ‘₯Ήœ)‰…Ρ•Ι₯„°Ω₯ΙΎ͕…ΉΑ…Ι…Ν₯ѕ́ё…Ё…Έ)…ΥΝ”Νε΅ΑΡ½΅ΜΝՍ …́Ή…ΥΝ•„°Ι…΅ΑΜ°)‘₯…ΙΙ‘•„…Ή…ΝΝ½₯…Ρ•‘•…‘…‘•ΜΈ(ά)%Έ€ΘΐΔά°Q…ΙΙ…ΉΠI•₯½Ή…°]…ѕȁ₯ΝΡΙ₯Π)…Ή…±ε镐…±°Ι…܁݅ѕȁͽΥɍ•Μ™½Θ)ΙεΑΡ½ΝΑ½Ι₯‘₯Υ΄…Ή₯…Ι‘₯„•… ΅½ΉΡ Έ)=Ή”½˜Ρ‘”Ν…΅Α±•ΜΡ…­•Έ‘ΥΙ₯Ήœ€ΘΐΔά)½ΉΡ…₯Ή•€ΐΈΐ䁽ɝ…Ή₯́͡Α•Θ±₯ѕȁ™½Θ)₯…Ι‘₯„Έ9ΌΙεΑΡ½ΝΑ½Ι₯‘₯Υ΄έ…́™½ΥΉΈ) ΙεΑΡ½ΝΑ½Ι₯‘₯Υ΄₯́„Α…Ρ‘½•Έέ‘₯ )΅…䁉”™½ΥΉ₯Έέ…ѕȁ½ΉΡ…΅₯Ή…Ρ•)‰δ™••ΜΈ±Ρ‘½Υ ™₯±ΡΙ…Ρ₯½ΈΙ•΅½Ω•Μ)ΙεΑΡ½ΝΑ½Ι₯‘₯Υ΄…Ή₯…Ι‘₯„°₯Ё…ΉΉ½Π)Υ…Ι…ΉΡ•”€Δΐΐ”Ι•΅½Ω…°Έ)Q‘”ΉΩ₯Ι½Ή΅•ΉΡ…°)AΙ½Ρ•Ρ₯½Έ•Ήδ(‘A€M…™”Ι₯Ή­₯Ήœ)]…ѕȁ!½Ρ±₯Ή”)Ι₯Ή­₯Ήœέ…Ρ•Θ°)₯Ή±Υ‘₯Ήœ‰½ΡΡ±•έ…Ρ•Θ°)΅…δΙ•…Ν½Ή…‰±δ‰”)•αΑ•Ρ•ΡΌ½ΉΡ…₯Έ…Ё±•…ΝΠ)Ν΅…±°…΅½ΥΉΡ́½˜Ν½΅”)½ΉΡ…΅₯Ή…ΉΡΜΈQ‘”ΑΙ•Ν•Ή”)½˜Ρ‘•Ν”½ΉΡ…΅₯Ή…ΉΡ́‘½•Μ)Ή½ΠΉ••ΝΝ…Ι₯±δ₯Ή‘₯…Ρ”Ρ‘…Π)݅ѕȁΑ½Ν•Μ„‘•…±Ρ Ι₯Ν¬Έ)%Έ½Ι‘•ΘΡΌ•ΉΝΥΙ”Ρ‘…Ёхΐ)݅ѕȁ₯́ͅ™”ΡΌ‘Ι₯Ή¬°Ρ‘”)AΑɕ͍Ι₯‰•ΜΙ•Υ±…Ρ₯½ΉΜ)Ρ‘…Ё±₯΅₯Ёё”…΅½ΥΉΠ½˜)•ΙΡ…₯ΈΝΥ‰ΝΡ…Ή•Μ₯Έέ…Ρ•Θ)ΑΙ½Ω₯‘•‰δΑΥ‰±₯Œ)݅ѕȁΝεΝΡ•΅ΜΈ)5½Ι”₯Ή™½Ι΅…Ρ₯½Έ)…‰½ΥЁ½ΉΡ…΅₯Ή…ΉΡ́…Ή)Α½Ρ•ΉΡ₯…°‘•…±Ρ •™™•Ρ́…Έ)‰”½‰Ρ…₯Ή•‰δ…±±₯ΉœΡ‘”)ΉΩ₯Ι½Ή΅•ΉΡ…°AΙ½Ρ•Ρ₯½Έ)•ΉηŠeΜ€‘A€M…™”Ι₯Ή­₯Ήœ)]…ѕȁ!½Ρ±₯Ή”…Π€ΰΐΐ΄ΠΘΨ΄(Πάδā½ΘΩ₯Ν₯Ρ₯ΉœΡ‘”έ•‰Ν₯Ρ”)…ЁέέάΉ•Α„Ή½Ψ½Ν…™•έ…Ρ•ΘΈ