2015 Water Quality Report

About JEA's Water Services

From JEA Managing Director and CEO, Paul McElroy

Paul McElroy We are proud to bring you the 2015 Annual JEA Water Quality Report.

The data in this report shows that the Floridan aquifer, our pristine groundwater source, continues to provide JEA customers with high-quality drinking water. This document provides a comprehensive summary of JEA's drinking water quality results from the most recent sampling period. It also represents an average of 45,000 tests performed every year by our team of laboratory scientists and technicians who, along with water operations, work hard every day to assure the safety of our drinking water for our customers.

We are proud to serve more than 329,000 water customers in a four county service area–a number that’s growing quickly. To serve that growth, we’re building a new water treatment plant in Northwest Jacksonville, expanding or replacing plants in Nassau and St. Johns Counties, and updating or rehabilitating older plants and wells throughout our service territory.

At JEA, we know the water we deliver to your home or business is a major driver of the health and economic development of our region. That’s why we work hard to manage and maintain Northeast Florida’s water resources for you and for generations to come.

Sincerely,   
Paul McElroy
JEA Managing Director & CEO

2015 Water Quality Monitoring Results

To find out which grid services your home, please see our Drinking Water Service Areas map

Major Grid

Microbiological Contaminants

Total Coliform Bacteria (positive samples)


Naturally present in the environment
Sample Date: 1/15-12/15 Level Detected: 1.59% Range of Results: N/A
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 1

E. coli in the distribution system (positive samples)


Human or animal fecal waste
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 0

Radioactive Contaminants

Alpha emitters (pCi/L)


Erosion of natural deposits
Sample Date: ND Level Detected: ND3 Range of Results: ND
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 15

Radium 226+228 or combined radium (pCi/L)


Erosion of natural deposits
Sample Date: ND Level Detected: ND3 Range of Results: ND
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 5

Inorganic Contaminants

Antimony (ppb)


Discharge from petroleum refineries; fire retardants; ceramics; electronics; solder
Sample Date: 2/14-7/14 Level Detected: 2.33 Range of Results: ND-2.33
Violation: N MCLG or MRDLG: 6 MCL or MRDL: 6

Arsenic (ppb)


Erosion of natural desposits; runoff from orchards; runoff from glass and electronics production wastes
Sample Date: 2/14-7/14 Level Detected: 2.75 Range of Results: ND-2.75
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 10

Barium (ppm)


Discharge of drilling wastes; discharge from metal refineries; erosion of natural deposits
Sample Date: 2/14-7/14 Level Detected: 0.0329 Range of Results: 0.0115-0.0329
Violation: N MCLG or MRDLG: 2 MCL or MRDL: 2

Cadmium (ppb)


Corrosion of galvanized pipes; erosion of natural deposits; discharge from metal refineries; runoff from waste batteries and paints
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 5 MCL or MRDL: 5

Fluoride (ppm)


Erosion of natural desposits; discharge from fertilizer. Water additive which promotes strong teeth when at the optimum level of 0.7 ppm
Sample Date: 2/14-7/14 Level Detected: 0.82 Range of Results: 0.27-0.82
Violation: N MCLG or MRDLG: 4 MCL or MRDL: 4.0

Lead (point of entry) (ppb)


Residue from man-made pollution such as auto emissions and paint; lead pipe, casing, and solder
Sample Date: 2/14-7/14 Level Detected: 2.26 Range of Results: ND-2.26
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 15

Mercury (ppb)


Erosion of natural deposits; discharge from refineries and factories; runoff from landfills; runoff from cropland
Sample Date: 2/14-7/14 Level Detected: 0.0082 Range of Results: ND-0.0082
Violation: N MCLG or MRDLG: 2 MCL or MRDL: 2

Nickel (ppb)


Pollution from mining and refining operations. Natural occurrence in soil
Sample Date: 7/14 Level Detected: 0.438 Range of Results: ND-0.438
Violation: N MCLG or MRDLG: N/A MCL or MRDL: 100

Nitrate (as Nitrogen) (ppm)


Runoff from fertilizer use; leaching from septic tanks, sewage; erosion of natural deposits
Sample Date: 2/15-3/15 Level Detected: 0.22 Range of Results: ND-0.222
Violation: N MCLG or MRDLG: 10 MCL or MRDL: 10

Nitrite (as Nitrogen) (ppm)


Runoff from fertilizer use; leaching from septic tanks, sewage; erosion of natural deposits
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 1 MCL or MRDL: 1

Selenium (ppb)


Discharge from petroleum and metal refineries; erosion of natural deposits; discharge from mines
Sample Date: 2/14-7/14 Level Detected: 2.78 Range of Results: ND-2.78
Violation: N MCLG or MRDLG: 50 MCL or MRDL: 50

Sodium (ppm)


Salt water intrusion, leaching from soil
Sample Date: 2/14-7/14 Level Detected: 49.63 Range of Results: 7.56-49.63
Violation: N MCLG or MRDLG: N/A MCL or MRDL: 160

Thallium (ppb)


Leaching from ore-processing sites; discharge from electronics, glass and drug factories
Sample Date: 2/14-7/14 Level Detected: 2.29 Range of Results: ND-2.29
Violation: N MCLG or MRDLG: 0.5 MCL or MRDL: 2

Synthetic Organic Contaminants

Di(2-ethylhexyl)phthalate (ppb)


Discharge from rubber and chemical factories
Sample Date: 2/15-10/15 Level Detected: 13.72 Range of Results: ND-13.7
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 6

Stage 1 Disinfectants And Disinfection Byproducts4

Bromate (ppb)


By-product of drinking water disinfection
Sample Date: 1/15-12/15 Level Detected: 2.24 Range of Results: ND-6.17
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 10.0

Chlorine (ppm)


Water additive used to control microbes
Sample Date: 1/15-12/15 Level Detected: 1.21 Range of Results: 0.2-2.6
Violation: N MCLG or MRDLG: 4 MCL or MRDL: 4.0

Stage 2 Disinfectants And Disinfection Byproducts4

Haloacetic Acids (five) (HAA5) (ppb)


By-product of drinking water disinfection
Sample Date: 1/15-12/15 Level Detected: 35.88 Range of Results: 10.22-48.30
Violation: N MCLG or MRDLG: N/A MCL or MRDL: 60

TTHM [Total Trihalomethanes] (ppb)


By-product of drinking water disinfection
Sample Date: 1/15-12/15 Level Detected: 79.34 Range of Results: 26.83-103.77
Violation: N MCLG or MRDLG: N/A MCL or MRDL: 80
  1. For systems taking more than 40 samples/month: >5% of monthly samples positive. For systems taking less than 40 samples/month: >1 monthly positive sample.
  2. Although MCL values were exceeded, follow up sampling did not result in violations
  3. Results are from Greenland WTP only.
  4. Level Detected for Disinfectants and Disinfection Byproducts is the highest locational running annual average of monthly/quaterly averages if sampled monthly/quarterly, or the highest result if sampled annually. N/A indicates 4 quarters of samples have not yet been taken, so the Level Detection cannot be calculated.

Lead And Copper (Tap Water)

Copper (ppm)


Corrosion of household plumbing systems; erosion of natural deposits; leaching from wood preservatives
Sample Date: 3/14-4/14 90th Percentile: 0.114 # Exceeding AL: 0 of 103
Violation: N MCLG or MRDLG: 1.3 MCL or MRDL: 1.3

Lead (ppb)


Corrosion of household plumbing sytems; erosion of natural deposits
Sample Date: 3/14-4/14 90th Percentile: 1.370 # Exceeding AL: 0 of 103
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 15

Secondary Contaminants

Iron (ppm)


Natural occurrence from soil leaching
Sample Date: 2/14-3/14 Level Detected: 1.86 Range of Results: ND–1.86
Violation: Y+ MCLG or MRDLG: N/A MCL or MRDL: 0.3

Odor (threshold odor number)


Naturally occurring organics
Sample Date: NR Level Detected: NR Range of Results: NR
Violation: No MCLG or MRDLG: N/A MCL or MRDL: 3

Sulfate (ppm)


Natural occurrence from soil leaching
Sample Date: 2/14-3/14 Level Detected: 331 Range of Results: ND–331
Violation: Y+ MCLG or MRDLG: N/A MCL or MRDL: 250

Total Dissolved Solids (ppm)


Natural occurrence from soil leaching
Sample Date: 2/14-3/14 Level Detected: 673 Range of Results: 17-673
Violation: Y+ MCLG or MRDLG: N/A MCL or MRDL: 500
  • + High levels of these contaminants do not show adverse health effects. Note: St. Johns Forest WTP (Major Grid) has a FDEP waiver for Sulfate levels not to exceed 500 mg/L.

Mayport

Microbiological Contaminants

Total Coliform Bacteria (positive samples)


Naturally present in the environment
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 1

E. coli in the distribution system (positive samples)


Human or animal fecal waste
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 0

Radioactive Contaminants

Alpha emitters (pCi/L)


Erosion of natural deposits
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 15

Radium 226+228 or combined radium (pCi/L)


Erosion of natural deposits
Sample Date: 3/09 Level Detected: 1.329 Range of Results: N/A
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 5

Inorganic Contaminants

Antimony (ppb)


Discharge from petroleum refineries; fire retardants; ceramics; electronics; solder
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 6 MCL or MRDL: 6

Arsenic (ppb)


Erosion of natural desposits; runoff from orchards; runoff from glass and electronics production wastes
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 10

Barium (ppm)


Discharge of drilling wastes; discharge from metal refineries; erosion of natural deposits
Sample Date: 2/15 Level Detected: 0.025 Range of Results: N/A
Violation: N MCLG or MRDLG: 2 MCL or MRDL: 2

Cadmium (ppb)


Corrosion of galvanized pipes; erosion of natural deposits; discharge from metal refineries; runoff from waste batteries and paints
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 5 MCL or MRDL: 5

Fluoride (ppm)


Erosion of natural desposits; discharge from fertilizer. Water additive which promotes strong teeth when at the optimum level of 0.7 ppm
Sample Date: 2/15 Level Detected: 0.679 Range of Results: N/A
Violation: N MCLG or MRDLG: 4 MCL or MRDL: 4.0

Lead (point of entry) (ppb)


Residue from man-made pollution such as auto emissions and paint; lead pipe, casing, and solder
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 15

Mercury (ppb)


Erosion of natural deposits; discharge from refineries and factories; runoff from landfills; runoff from cropland
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 2 MCL or MRDL: 2

Nickel (ppb)


Pollution from mining and refining operations. Natural occurrence in soil
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: N/A MCL or MRDL: 100

Nitrate (as Nitrogen) (ppm)


Runoff from fertilizer use; leaching from septic tanks, sewage; erosion of natural deposits
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 10 MCL or MRDL: 10

Nitrite (as Nitrogen) (ppm)


Runoff from fertilizer use; leaching from septic tanks, sewage; erosion of natural deposits
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 1 MCL or MRDL: 1

Selenium (ppb)


Discharge from petroleum and metal refineries; erosion of natural deposits; discharge from mines
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 50 MCL or MRDL: 50

Sodium (ppm)


Salt water intrusion, leaching from soil
Sample Date: 2/15 Level Detected: 14.869 Range of Results: N/A
Violation: N MCLG or MRDLG: N/A MCL or MRDL: 160

Thallium (ppb)


Leaching from ore-processing sites; discharge from electronics, glass and drug factories
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 0.5 MCL or MRDL: 2

Synthetic Organic Contaminants

Di(2-ethylhexyl)phthalate (ppb)


Discharge from rubber and chemical factories
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 6

Stage 1 Disinfectants And Disinfection Byproducts2

Bromate (ppb)


By-product of drinking water disinfection
Sample Date: N/A Level Detected: N/A Range of Results: N/A
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 10.0

Chlorine (ppm)


Water additive used to control microbes
Sample Date: 1/15-12/15 Level Detected: 1.03 Range of Results: 0.2-2.2
Violation: N MCLG or MRDLG: 4 MCL or MRDL: 4.0

Stage 2 Disinfectants And Disinfection Byproducts2

Haloacetic Acids (five) (HAA5) (ppb)


By-product of drinking water disinfection
Sample Date: 7/15 Level Detected: 25.66 Range of Results: 12.05-25.66
Violation: N MCLG or MRDLG: N/A MCL or MRDL: 60

TTHM [Total Trihalomethanes] (ppb)


By-product of drinking water disinfection
Sample Date: 7/15 Level Detected: 62.68 Range of Results: 34.15-62.68
Violation: N MCLG or MRDLG: N/A MCL or MRDL: 80
  1. For systems taking more than 40 samples/month: >5% of monthly samples positive. For systems taking less than 40 samples/month: >1 monthly positive sample.
  2. Level Detected for Disinfectants and Disinfection Byproducts is the highest locational running annual average of monthly/quaterly averages if sampled monthly/quarterly, or the highest result if sampled annually. N/A indicates 4 quarters of samples have not yet been taken, so the Level Detection cannot be calculated. – N/A indicates 4 quarters of samples have not yet been taken, so the Level Detection cannot be calculated.

Lead And Copper (Tap Water)

Copper (ppm)


Corrosion of household plumbing systems; erosion of natural deposits; leaching from wood preservatives
Sample Date: 7/14 90th Percentile: 0.053 # Exceeding AL: 0 of 9
Violation: N MCLG or MRDLG: 1.3 MCL or MRDL: 1.3

Lead (ppb)


Corrosion of household plumbing sytems; erosion of natural deposits
Sample Date: 7/14 90th Percentile: 0.594 # Exceeding AL: 0 of 9
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 15

Secondary Contaminants

Iron (ppm)


Natural occurrence from soil leaching
Sample Date: NR Level Detected: NR Range of Results: NR
Violation: No MCLG or MRDLG: N/A MCL or MRDL: 0.3

Odor (threshold odor number)


Naturally occurring organics
Sample Date: NR Level Detected: NR Range of Results: NR
Violation: No MCLG or MRDLG: N/A MCL or MRDL: 3

Sulfate (ppm)


Natural occurrence from soil leaching
Sample Date: NR Level Detected: NR Range of Results: NR
Violation: No MCLG or MRDLG: N/A MCL or MRDL: 250

Total Dissolved Solids (ppm)


Natural occurrence from soil leaching
Sample Date: NR Level Detected: NR Range of Results: NR
Violation: No MCLG or MRDLG: N/A MCL or MRDL: 500

Lofton Oaks Grid

Microbiological Contaminants

Total Coliform Bacteria (positive samples)


Naturally present in the environment
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 1

E. coli in the distribution system (positive samples)


Human or animal fecal waste
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 0

Radioactive Contaminants

Alpha emitters (pCi/L)


Erosion of natural deposits
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 15

Radium 226+228 or combined radium (pCi/L)


Erosion of natural deposits
Sample Date: 3/11 Level Detected: 1.69 Range of Results: ND-1.69
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 5

Inorganic Contaminants

Antimony (ppb)


Discharge from petroleum refineries; fire retardants; ceramics; electronics; solder
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 6 MCL or MRDL: 6

Arsenic (ppb)


Erosion of natural desposits; runoff from orchards; runoff from glass and electronics production wastes
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 10

Barium (ppm)


Discharge of drilling wastes; discharge from metal refineries; erosion of natural deposits
Sample Date: 2/14 Level Detected: 0.0348 Range of Results: 0.0286-0.0348
Violation: N MCLG or MRDLG: 2 MCL or MRDL: 2

Cadmium (ppb)


Corrosion of galvanized pipes; erosion of natural deposits; discharge from metal refineries; runoff from waste batteries and paints
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 5 MCL or MRDL: 5

Fluoride (ppm)


Erosion of natural desposits; discharge from fertilizer. Water additive which promotes strong teeth when at the optimum level of 0.7 ppm
Sample Date: 2/14 Level Detected: 0.763 Range of Results: 0.687-0.763
Violation: N MCLG or MRDLG: 4 MCL or MRDL: 4.0

Lead (point of entry) (ppb)


Residue from man-made pollution such as auto emissions and paint; lead pipe, casing, and solder
Sample Date: 2/14 Level Detected: 2.52 Range of Results: ND-2.52
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 15

Mercury (ppb)


Erosion of natural deposits; discharge from refineries and factories; runoff from landfills; runoff from cropland
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 2 MCL or MRDL: 2

Nickel (ppb)


Pollution from mining and refining operations. Natural occurrence in soil
Sample Date: 2/14 Level Detected: 0.44 Range of Results: ND-0.44
Violation: N MCLG or MRDLG: N/A MCL or MRDL: 100

Nitrate (as Nitrogen) (ppm)


Runoff from fertilizer use; leaching from septic tanks, sewage; erosion of natural deposits
Sample Date: 2/15 Level Detected: 0.171 Range of Results: ND-0.171
Violation: N MCLG or MRDLG: 10 MCL or MRDL: 10

Nitrite (as Nitrogen) (ppm)


Runoff from fertilizer use; leaching from septic tanks, sewage; erosion of natural deposits
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 1 MCL or MRDL: 1

Selenium (ppb)


Discharge from petroleum and metal refineries; erosion of natural deposits; discharge from mines
Sample Date: 2/14 Level Detected: 0.815 Range of Results: ND-0.815
Violation: N MCLG or MRDLG: 50 MCL or MRDL: 50

Sodium (ppm)


Salt water intrusion, leaching from soil
Sample Date: 2/14 Level Detected: 28.083 Range of Results: 21.627-28.083
Violation: N MCLG or MRDLG: N/A MCL or MRDL: 160

Thallium (ppb)


Leaching from ore-processing sites; discharge from electronics, glass and drug factories
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 0.5 MCL or MRDL: 2

Synthetic Organic Contaminants

Di(2-ethylhexyl)phthalate (ppb)


Discharge from rubber and chemical factories
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 6

Stage 1 Disinfectants And Disinfection Byproducts2

Bromate (ppb)


By-product of drinking water disinfection
Sample Date: N/A Level Detected: N/A Range of Results: N/A
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 10.0

Chlorine (ppm)


Water additive used to control microbes
Sample Date: 1/15-12/15 Level Detected: 1.11 Range of Results: 0.2-2.2
Violation: N MCLG or MRDLG: 4 MCL or MRDL: 4.0

Stage 2 Disinfectants And Disinfection Byproducts2

Haloacetic Acids (five) (HAA5) (ppb)


By-product of drinking water disinfection
Sample Date: 1/15-12/15 Level Detected: 26.17 Range of Results: 15.12-33.60
Violation: N MCLG or MRDLG: N/A MCL or MRDL: 60

TTHM [Total Trihalomethanes] (ppb)


By-product of drinking water disinfection
Sample Date: 1/15-12/15 Level Detected: 60.55 Range of Results: 40.87-78.46
Violation: N MCLG or MRDLG: N/A MCL or MRDL: 80
  1. For systems taking more than 40 samples/month: >5% of monthly samples positive. For systems taking less than 40 samples/month: >1 monthly positive sample.
  2. Level Detected for Disinfectants and Disinfection Byproducts is the highest locational running annual average of monthly/quaterly averages if sampled monthly/quarterly, or the highest result if sampled annually. N/A indicates 4 quarters of samples have not yet been taken, so the Level Detection cannot be calculated. – N/A indicates 4 quarters of samples have not yet been taken, so the Level Detection cannot be calculated.

Lead And Copper (Tap Water)

Copper (ppm)


Corrosion of household plumbing systems; erosion of natural deposits; leaching from wood preservatives
Sample Date: 7/14-10/14 90th Percentile: 0.047 # Exceeding AL: 0 of 30
Violation: N MCLG or MRDLG: 1.3 MCL or MRDL: 1.3

Lead (ppb)


Corrosion of household plumbing sytems; erosion of natural deposits
Sample Date: 7/14-10/14 90th Percentile: 1.100 # Exceeding AL: 0 of 30
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 15

Secondary Contaminants

Iron (ppm)


Natural occurrence from soil leaching
Sample Date: NR Level Detected: NR Range of Results: NR
Violation: No MCLG or MRDLG: N/A MCL or MRDL: 0.3

Odor (threshold odor number)


Naturally occurring organics
Sample Date: NR Level Detected: NR Range of Results: NR
Violation: No MCLG or MRDLG: N/A MCL or MRDL: 3

Sulfate (ppm)


Natural occurrence from soil leaching
Sample Date: NR Level Detected: NR Range of Results: NR
Violation: No MCLG or MRDLG: N/A MCL or MRDL: 250

Total Dissolved Solids (ppm)


Natural occurrence from soil leaching
Sample Date: NR Level Detected: NR Range of Results: NR
Violation: No MCLG or MRDLG: N/A MCL or MRDL: 500

Ponce de Leon Grid

Microbiological Contaminants

Total Coliform Bacteria (positive samples)


Naturally present in the environment
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 1

E. coli in the distribution system (positive samples)2


Human or animal fecal waste
Sample Date: 1/15-12/15 Level Detected: 1 Range of Results: N/A
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 0

Radioactive Contaminants

Alpha emitters (pCi/L)


Erosion of natural deposits
Sample Date: 3/11 Level Detected: 2.53 Range of Results: ND-2.53
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 15

Radium 226+228 or combined radium (pCi/L)


Erosion of natural deposits
Sample Date: 3/11 Level Detected: 1.06 Range of Results: ND-1.06
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 5

Inorganic Contaminants

Antimony (ppb)


Discharge from petroleum refineries; fire retardants; ceramics; electronics; solder
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 6 MCL or MRDL: 6

Arsenic (ppb)


Erosion of natural desposits; runoff from orchards; runoff from glass and electronics production wastes
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 10

Barium (ppm)


Discharge of drilling wastes; discharge from metal refineries; erosion of natural deposits
Sample Date: 2/15 Level Detected: 0.0193 Range of Results: 0.0145-0.0193
Violation: N MCLG or MRDLG: 2 MCL or MRDL: 2

Cadmium (ppb)


Corrosion of galvanized pipes; erosion of natural deposits; discharge from metal refineries; runoff from waste batteries and paints
Sample Date: 2/15 Level Detected: 0.193 Range of Results: ND-0.193
Violation: N MCLG or MRDLG: 5 MCL or MRDL: 5

Fluoride (ppm)


Erosion of natural desposits; discharge from fertilizer. Water additive which promotes strong teeth when at the optimum level of 0.7 ppm
Sample Date: 2/15 Level Detected: 1.22 Range of Results: 0.96-1.22
Violation: N MCLG or MRDLG: 4 MCL or MRDL: 4.0

Lead (point of entry) (ppb)


Residue from man-made pollution such as auto emissions and paint; lead pipe, casing, and solder
Sample Date: 2/15 Level Detected: 2.41 Range of Results: ND-2.41
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 15

Mercury (ppb)


Erosion of natural deposits; discharge from refineries and factories; runoff from landfills; runoff from cropland
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 2 MCL or MRDL: 2

Nickel (ppb)


Pollution from mining and refining operations. Natural occurrence in soil
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: N/A MCL or MRDL: 100

Nitrate (as Nitrogen) (ppm)


Runoff from fertilizer use; leaching from septic tanks, sewage; erosion of natural deposits
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 10 MCL or MRDL: 10

Nitrite (as Nitrogen) (ppm)


Runoff from fertilizer use; leaching from septic tanks, sewage; erosion of natural deposits
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 1 MCL or MRDL: 1

Selenium (ppb)


Discharge from petroleum and metal refineries; erosion of natural deposits; discharge from mines
Sample Date: 2/15 Level Detected: 1.52 Range of Results: ND-1.52
Violation: N MCLG or MRDLG: 50 MCL or MRDL: 50

Sodium (ppm)


Salt water intrusion, leaching from soil
Sample Date: 2/15 Level Detected: 64.189 Range of Results: 28.57-64.189
Violation: N MCLG or MRDLG: N/A MCL or MRDL: 160

Thallium (ppb)


Leaching from ore-processing sites; discharge from electronics, glass and drug factories
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 0.5 MCL or MRDL: 2

Synthetic Organic Contaminants

Di(2-ethylhexyl)phthalate (ppb)


Discharge from rubber and chemical factories
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 6

Stage 1 Disinfectants And Disinfection Byproducts4

Bromate (ppb)


By-product of drinking water disinfection
Sample Date: N/A Level Detected: N/A Range of Results: N/A
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 10.0

Chlorine (ppm)


Water additive used to control microbes
Sample Date: 1/15-12/15 Level Detected: 1.13 Range of Results: 0.2-2.2
Violation: N MCLG or MRDLG: 4 MCL or MRDL: 4.0

Stage 2 Disinfectants And Disinfection Byproducts4

Haloacetic Acids (five) (HAA5) (ppb)


By-product of drinking water disinfection
Sample Date: 7/15-12/15 Level Detected: N/A Range of Results: 14.64-20.11
Violation: N MCLG or MRDLG: N/A MCL or MRDL: 60

TTHM [Total Trihalomethanes] (ppb)


By-product of drinking water disinfection
Sample Date: 7/15-12/15 Level Detected: N/A Range of Results: 46.61-86.94
Violation: N MCLG or MRDLG: N/A MCL or MRDL: 80
  1. For systems taking more than 40 samples/month: >5% of monthly samples positive. For systems taking less than 40 samples/month: >1 monthly positive sample.
  2. Although MCL values were exceeded, follow up sampling did not result in violations
  3. Results are from Greenland WTP only.
  4. Level Detected for Disinfectants and Disinfection Byproducts is the highest locational running annual average of monthly/quaterly averages if sampled monthly/quarterly, or the highest result if sampled annually. N/A indicates 4 quarters of samples have not yet been taken, so the Level Detection cannot be calculated. – N/A indicates 4 quarters of samples have not yet been taken, so the Level Detection cannot be calculated.

Lead And Copper (Tap Water)

Copper (ppm)


Corrosion of household plumbing systems; erosion of natural deposits; leaching from wood preservatives
Sample Date: 6/14-7/14 90th Percentile: 0.173 # Exceeding AL: 0 of 14
Violation: N MCLG or MRDLG: 1.3 MCL or MRDL: 1.3

Lead (ppb)


Corrosion of household plumbing sytems; erosion of natural deposits
Sample Date: 6/14-7/14 90th Percentile: 2.060 # Exceeding AL: 0 of 14
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 15

Secondary Contaminants

Iron (ppm)


Natural occurrence from soil leaching
Sample Date: NR Level Detected: NR Range of Results: NR
Violation: No MCLG or MRDLG: N/A MCL or MRDL: 0.3

Odor (threshold odor number)


Naturally occurring organics
Sample Date: 2/15 Level Detected: 8 Range of Results: 1-8
Violation: Y+ MCLG or MRDLG: N/A MCL or MRDL: 3

Sulfate (ppm)


Natural occurrence from soil leaching
Sample Date: NR Level Detected: NR Range of Results: NR
Violation: No MCLG or MRDLG: N/A MCL or MRDL: 250

Total Dissolved Solids (ppm)


Natural occurrence from soil leaching
Sample Date: 2/15 Level Detected: 656 Range of Results: 537-656
Violation: Y+ MCLG or MRDLG: N/A MCL or MRDL: 500
  • + High levels of these contaminants do not show adverse health effects.

Ponte Vedra Grid

Microbiological Contaminants

Total Coliform Bacteria (positive samples)


Naturally present in the environment
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 0 MCL or MRDL:1

E. coli in the distribution system (positive samples)


Human or animal fecal waste
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 0

Radioactive Contaminants

Alpha emitters (pCi/L)


Erosion of natural deposits
Sample Date: 3/11 Level Detected: 1.75 Range of Results: ND-1.75
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 15

Radium 226+228 or combined radium (pCi/L)


Erosion of natural deposits
Sample Date: 3/11 Level Detected: 1.5 Range of Results: ND-1.5
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 5

Inorganic Contaminants

Antimony (ppb)


Discharge from petroleum refineries; fire retardants; ceramics; electronics; solder
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 6 MCL or MRDL: 6

Arsenic (ppb)


Erosion of natural desposits; runoff from orchards; runoff from glass and electronics production wastes
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: ND MCLG or MRDLG: 0 MCL or MRDL: 10

Barium (ppm)


Discharge of drilling wastes; discharge from metal refineries; erosion of natural deposits
Sample Date: 2/14 Level Detected: 0.0352 Range of Results: 0.0257-0.0352
Violation: N MCLG or MRDLG: 2 MCL or MRDL: 2

Cadmium (ppb)


Corrosion of galvanized pipes; erosion of natural deposits; discharge from metal refineries; runoff from waste batteries and paints
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 5 MCL or MRDL: 5

Fluoride (ppm)


Erosion of natural desposits; discharge from fertilizer. Water additive which promotes strong teeth when at the optimum level of 0.7 ppm
Sample Date: 2/14 Level Detected: 1.10 Range of Results: 0.847-1.10
Violation: N MCLG or MRDLG: 4 MCL or MRDL: 4.0

Lead (point of entry) (ppb)


Residue from man-made pollution such as auto emissions and paint; lead pipe, casing, and solder
Sample Date: 2/14 Level Detected: 10.5 Range of Results: ND-10.5
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 15

Mercury (ppb)


Erosion of natural deposits; discharge from refineries and factories; runoff from landfills; runoff from cropland
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 2 MCL or MRDL: 2

Nickel (ppb)


Pollution from mining and refining operations. Natural occurrence in soil
Sample Date: 2/14 Level Detected: 2.3 Range of Results: ND-2.3
Violation: N MCLG or MRDLG: N/A MCL or MRDL: 100

Nitrate (as Nitrogen) (ppm)


Runoff from fertilizer use; leaching from septic tanks, sewage; erosion of natural deposits
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 10 MCL or MRDL: 10

Nitrite (as Nitrogen) (ppm)


Runoff from fertilizer use; leaching from septic tanks, sewage; erosion of natural deposits
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 1 MCL or MRDL: 1

Selenium (ppb)


Discharge from petroleum and metal refineries; erosion of natural deposits; discharge from mines
Sample Date: 2/14 Level Detected: 1.2 Range of Results: 1.1-1.2
Violation: N MCLG or MRDLG: 50 MCL or MRDL: 50

Sodium (ppm)


Salt water intrusion, leaching from soil
Sample Date: 2/14 Level Detected: 61.51 Range of Results: 22.766-61.51
Violation: N MCLG or MRDLG: N/A MCL or MRDL: 160

Thallium (ppb)


Leaching from ore-processing sites; discharge from electronics, glass and drug factories
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 0.5 MCL or MRDL: 2

Synthetic Organic Contaminants

Di(2-ethylhexyl)phthalate (ppb)


Discharge from rubber and chemical factories
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 6

Stage 1 Disinfectants And Disinfection Byproducts2

Bromate (ppb)


By-product of drinking water disinfection
Sample Date: N/A Level Detected: N/A Range of Results: N/A
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 10.0

Chlorine (ppm)


Water additive used to control microbes
Sample Date: 1/15-12/15 Level Detected: 1.16 Range of Results: 0.24-2.2
Violation: N MCLG or MRDLG: 4 MCL or MRDL: 4.0

Stage 2 Disinfectants And Disinfection Byproducts2

Haloacetic Acids (five) (HAA5) (ppb)


By-product of drinking water disinfection
Sample Date: 7/15-12/15 Level Detected: N/A Range of Results: 13.68-22.84
Violation: N MCLG or MRDLG: N/A MCL or MRDL: 60

TTHM [Total Trihalomethanes] (ppb)


By-product of drinking water disinfection
Sample Date: 7/15-12/15 Level Detected: N/A Range of Results: 34.75-86.89
Violation: N MCLG or MRDLG: N/A MCL or MRDL: 80
  1. For systems taking more than 40 samples/month: >5% of monthly samples positive. For systems taking less than 40 samples/month: >1 monthly positive sample.
  2. Level Detected for Disinfectants and Disinfection Byproducts is the highest locational running annual average of monthly/quaterly averages if sampled monthly/quarterly, or the highest result if sampled annually. N/A indicates 4 quarters of samples have not yet been taken, so the Level Detection cannot be calculated. – N/A indicates 4 quarters of samples have not yet been taken, so the Level Detection cannot be calculated.

Lead And Copper (Tap Water)

Copper (ppm)


Corrosion of household plumbing systems; erosion of natural deposits; leaching from wood preservatives
Sample Date: 7/14-8/14 90th Percentile: 0.259 # Exceeding AL: 0 of 44
Violation: N MCLG or MRDLG: 1.3 MCL or MRDL: 1.3

Lead (ppb)


Corrosion of household plumbing sytems; erosion of natural deposits
Sample Date: 7/14-8/14 90th Percentile: 1.400 # Exceeding AL: 0 of 44
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 15

Secondary Contaminants

Iron (ppm)


Natural occurrence from soil leaching
Sample Date: NR Level Detected: NR Range of Results: NR
Violation: No MCLG or MRDLG: N/A MCL or MRDL: 0.3

Odor (threshold odor number)


Naturally occurring organics
Sample Date: NR Level Detected: NR Range of Results: NR
Violation: No MCLG or MRDLG: N/A MCL or MRDL: 3

Sulfate (ppm)


Natural occurrence from soil leaching
Sample Date: NR Level Detected: NR Range of Results: NR
Violation: No MCLG or MRDLG: N/A MCL or MRDL: 250

Total Dissolved Solids (ppm)


Natural occurrence from soil leaching
Sample Date: 2/14-3/14 Level Detected: 625 Range of Results: 424-625
Violation: Y+ MCLG or MRDLG: N/A MCL or MRDL: 500
  • + High levels of these contaminants do not show adverse health effects.

Palm Valley

Microbiological Contaminants

Total Coliform Bacteria (positive samples)


Naturally present in the environment
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 0 MCL or MRDL:1

E. coli in the distribution system (positive samples)


Human or animal fecal waste
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 0

Radioactive Contaminants

Alpha emitters (pCi/L)


Erosion of natural deposits
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 15

Radium 226+228 or combined radium (pCi/L)


Erosion of natural deposits
Sample Date: 9/08 Level Detected: 0.3 Range of Results: ND-0.3
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 5

Inorganic Contaminants

Antimony (ppb)


Discharge from petroleum refineries; fire retardants; ceramics; electronics; solder
Sample Date: 12/14 Level Detected: 0.26 Range of Results: ND-0.26
Violation: N MCLG or MRDLG: 6 MCL or MRDL: 6

Arsenic (ppb)


Erosion of natural desposits; runoff from orchards; runoff from glass and electronics production wastes
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 10

Barium (ppm)


Discharge of drilling wastes; discharge from metal refineries; erosion of natural deposits
Sample Date: 12/14 Level Detected: 0.023 Range of Results: 0.021-0.023
Violation: N MCLG or MRDLG: 2 MCL or MRDL: 2

Cadmium (ppb)


Corrosion of galvanized pipes; erosion of natural deposits; discharge from metal refineries; runoff from waste batteries and paints
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 5 MCL or MRDL: 5

Fluoride (ppm)


Erosion of natural desposits; discharge from fertilizer. Water additive which promotes strong teeth when at the optimum level of 0.7 ppm
Sample Date: 12/14 Level Detected: 0.70 Range of Results: 0.64-0.70
Violation: N MCLG or MRDLG: 4 MCL or MRDL: 4.0

Lead (point of entry) (ppb)


Residue from man-made pollution such as auto emissions and paint; lead pipe, casing, and solder
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 15

Mercury (ppb)


Erosion of natural deposits; discharge from refineries and factories; runoff from landfills; runoff from cropland
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 2 MCL or MRDL: 2

Nickel (ppb)


Pollution from mining and refining operations. Natural occurrence in soil
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: N/A MCL or MRDL: 100

Nitrate (as Nitrogen) (ppm)


Runoff from fertilizer use; leaching from septic tanks, sewage; erosion of natural deposits
Sample Date: 6/15 Level Detected: 0.0202 Range of Results: 0.0154-0.0202
Violation: N MCLG or MRDLG: 10 MCL or MRDL: 10

Nitrite (as Nitrogen) (ppm)


Runoff from fertilizer use; leaching from septic tanks, sewage; erosion of natural deposits
Sample Date: 6/15 Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 1 MCL or MRDL: 1

Selenium (ppb)


Discharge from petroleum and metal refineries; erosion of natural deposits; discharge from mines
Sample Date: 12/14 Level Detected: 25.0 Range of Results: 24.0-25.0
Violation: N MCLG or MRDLG: 50 MCL or MRDL: 50

Sodium (ppm)


Salt water intrusion, leaching from soil
Sample Date: 12/14 Level Detected: 28.0 Range of Results: 21.0-28.0
Violation: N MCLG or MRDLG: N/A MCL or MRDL: 160

Thallium (ppb)


Leaching from ore-processing sites; discharge from electronics, glass and drug factories
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 0.5 MCL or MRDL: 2

Synthetic Organic Contaminants

Di(2-ethylhexyl)phthalate (ppb)


Discharge from rubber and chemical factories
Sample Date: ND Level Detected: ND Range of Results: ND
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 6

Stage 1 Disinfectants And Disinfection Byproducts2

Bromate (ppb)


By-product of drinking water disinfection
Sample Date: N/A Level Detected: N/A Range of Results: N/A
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 10.0

Chlorine (ppm)


Water additive used to control microbes
Sample Date: 1/15-12/15 Level Detected: 1.51 Range of Results: 0.2-2.2
Violation: N MCLG or MRDLG: 4 MCL or MRDL: 4.0

Stage 2 Disinfectants And Disinfection Byproducts2

Haloacetic Acids (five) (HAA5) (ppb)


By-product of drinking water disinfection
Sample Date: 7/15-12/15 Level Detected: N/A Range of Results: 18.30-57.07
Violation: N MCLG or MRDLG: N/A MCL or MRDL: 60

TTHM [Total Trihalomethanes] (ppb)


By-product of drinking water disinfection
Sample Date: 7/15-12/15 Level Detected: N/A Range of Results: 38.50-144.48
Violation: N MCLG or MRDLG: N/A MCL or MRDL: 80
  1. For systems taking more than 40 samples/month: >5% of monthly samples positive. For systems taking less than 40 samples/month: >1 monthly positive sample.
  2. Level Detected for Disinfectants and Disinfection Byproducts is the highest locational running annual average of monthly/quaterly averages if sampled monthly/quarterly, or the highest result if sampled annually. N/A indicates 4 quarters of samples have not yet been taken, so the Level Detection cannot be calculated. – N/A indicates 4 quarters of samples have not yet been taken, so the Level Detection cannot be calculated.

Lead And Copper (Tap Water)

Copper (ppm)


Corrosion of household plumbing systems; erosion of natural deposits; leaching from wood preservatives
Sample Date: 6/14-7/14 90th Percentile: 0.152 # Exceeding AL: 0 of 10
Violation: N MCLG or MRDLG: 1.3 MCL or MRDL: 1.3

Lead (ppb)


Corrosion of household plumbing sytems; erosion of natural deposits
Sample Date: 6/14-7/14 90th Percentile: 1.27 # Exceeding AL: 0 of 10
Violation: N MCLG or MRDLG: 0 MCL or MRDL: 15

Secondary Contaminants

Iron (ppm)


Natural occurrence from soil leaching
Sample Date: NR Level Detected: NR Range of Results: NR
Violation: No MCLG or MRDLG: N/A MCL or MRDL: 0.3

Odor (threshold odor number)


Naturally occurring organics
Sample Date: NR Level Detected: NR Range of Results: NR
Violation: No MCLG or MRDLG: N/A MCL or MRDL: 3

Sulfate (ppm)


Natural occurrence from soil leaching
Sample Date: NR Level Detected: NR Range of Results: NR
Violation: No MCLG or MRDLG: N/A MCL or MRDL: 250

Total Dissolved Solids (ppm)


Natural occurrence from soil leaching
Sample Date: NR Level Detected: NR Range of Results: NR
Violation: No MCLG or MRDLG: N/A MCL or MRDL: 500

FDEP Source Water Assessment and Protection Program

In 2015 the Florida Department of Environmental Protection (FDEP) performed Source Water Assessments on our systems. These assessments were conducted to provide information about any potential sources of contamination in the vicinity of our wells. The number of potential sources and susceptibility level of contamination identified for all wells in our systems are shown in the table below. Potential sources of contamination could include landfills, above and underground fuel storage tanks, dry cleaning facilities, and wastewater disposal areas. The assessment results are available on the FDEP Source Water Assessment and Protection Program website.

System Number of Potential Sources Susceptibility Level
Major Grid 48 Low-Moderate
Mayport 0 N/A
Lofton Oaks Grid 0 N/A
Ponte Vedra Grid 0 N/A
Ponce de Leon Grid 3 Low-Moderate

Connect With Us

You can inquire about your water quality, report a water quality problem, or comment about this report using the following contact methods:

  • Call us at 904-665-6000
  • Email waterquality@jea.com
  • Write to us at JEA Water Quality, 1002 N. Main Street, Jacksonville, FL 32206, Attention: Water Quality Report
  • Speak with our market researchers or our drinking water pollsters who call throughout the year
  • Attend our  Public Board Meetings

Request a Printed Copy of the 2015 Water Quality Report

Terms and Abbreviations

To help you better understand terms included in the Water Quality Monitoring Results, we've provided the following definitions:

  • Action Level (AL): The concentration of a contaminant which, if exceeded, triggers treatment or other requirements that a water system must follow.
  • Maximum Contaminant Level (MCL): 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 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.
  • 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.
  • Non-Detect (ND): Not detected and indicates that the substance was not found by laboratory analysis.
  • Not Required (NR): Secondary Contaminants with sample results below the MCL are not required to be reported.
  • Parts per billion (ppb) or Micrograms per liter (μg/l): One part by weight of analyte to 1 billion parts by weight of the water sample.
  • Parts per million (ppm) or Milligrams per liter (mg/l): One part by weight of analyte to 1 million parts by weight of the water sample.
  • Picocurie per liter (pCi/L): Measure of the radioactivity in water.
  • Variances and Exemptions: State or EPA permission not to meet an MCL under certain conditions.

Note: MCLs are set at stringent levels. To understand the possible health effects described for many regulated consituents, a person would have to drink two liters of water every day at the MCL for a lifetime to have a one-in-a-million chance of having the described effect.

Additional Information

Lead: If present, 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. JEA 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 water for drinking or cooking. If you 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 available from the Safe Drinking Water Hotline or at epa.gov/safewater/lead.

Heath Effects: Fecal coliforms and E. coli are bacteria whose presence indicates that the water may be contaminated with human or animal wastes. Microbes in these wastes can cause short-term effects, such as diarrhea, cramps, nausea, headaches, or other symptoms. They may pose a special health risk for infants, young children, some elderly, and people with severely compromised immune systems.

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).

The Annual Water Quality Report is provided to all customers of community water systems on an annual basis as required by the Environmental Protection Agency (EPA) under the 1996 Safe Drinking Water Act Amendments.

JEA routinely monitors for contaminants in your drinking water according to federal and state laws, rules, and regulations. Except where indicated otherwise, this report is based on the results of our monitoring for the period of January 1 to December 31, 2015. Data obtained before January 1, 2015, and presented in this report are from the most recent testing done in accordance with the laws, rules, and regulations. Out of more than 100 contaminants for which JEA routinely tests, only those that have been detected appear in the tables.

The sources of drinking water (both tap water and bottled water) include rivers, lakes, streams, ponds, reservoirs, springs, and wells. As water travels over the surface of the land or through the ground, it dissolves naturally occurring minerals and, in some cases, radioactive material, and can pick up substances resulting from the presence of animals or from human activity.

Contaminants that may be present in source water include:

  1. Microbial contaminants, such as viruses and bacteria, which may come from sewage treatment plants, septic systems, agricultural livestock operations, and wildlife.
  2. Inorganic contaminants, such as salts and metals, which can be naturally-occurring or result from urban stormwater runoff, industrial or domestic wastewater discharges, oil and gas production, mining, or farming.
  3. Pesticides and herbicides, which may come from a variety of sources such as agriculture, urban stormwater runoff, and residential uses.
  4. Organic chemical contaminants, including synthetic and volatile organic chemicals, which are by-products of industrial processes and petroleum production, and can also come from gas stations, urban stormwater runoff, and septic systems.
  5. Radioactive contaminants, which can be naturally occurring or be the result of oil and gas production and mining activities.

In order to ensure that tap water is safe to drink, the EPA prescribes regulations, which limit the amount of certain contaminants in water provided by public water systems. The Food and Drug Administration (FDA) regulations establish limits for contaminants in bottled water, which must provide the same protection for public health.

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.

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