WATER MONITORING RESULTS
Microbiological Contaminants

Contaminant

Violation

Y/N

Highest No. of dections

No. of months in violation

Unit

Measurement

MCL in CCR units

PHG

MCLG

Likely Source of Contamination

 

Total Coliform Bacteria

 

Y

 

2

 

1

 

0

 For systems that collect less than 40 samples per month, no more than 1 positive sample

 

0

 

0

 

Naturally present in the environment

Fecal coliform and E.coli

N

0

0

0

a routine sample and repeat sample are total coliform positive, and one is also fecal coliform or E. coli positive

0

0

Human and animal fecal waste

 Turbidity

N

0.2

0.1/0.4

TT

5

N/A

N/A

Soil runoff'

 

RADIOACTIVE CONTAMINANTS

Contaminant

Violation

Y/N

Level

Detected

Range

Unit

Measurement

MCL in CCR units

PHG

MCLG or MRDLG

Likely Source of Contamination

 

Gross Alpha

N

2.3

N/D/5.6

pCi/L

15

N/A

N/A

Erosion of natural deposits

Uranium

N

2.2

N/D/7.0

pCi/L

20

0.43

N/A

Erosion of natural deposits

Radon

N

269

251/578

pCi/L

N/A

N/A

0*

Naturally occurring in soil

INORGANIC CONTAMINANTS

Contaminant

Violation

Y/N

Level

Detected

Range

Unit

Measurement

MCL in CCR units

PHG

MCLG or MRDLG

Likely Source of Contamination

 

Arsenic

 

 

 

 

N

1.0

N/D/4.1

ppb

10

0.004

0.004

Erosion of natural deposits; runoff from orchards; glass and electronics production wastes

Fluoride

N

0.46

0.26/1.0

ppm

2.0

1

1

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

Nitrate (as No3)

N

11

9/23

ppm

45

45

45

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

Nitrate + Nitrite as Nitrogen

N

2686

1800/6800

ppm

10,000

10,000

10,000

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

DISTRIBUTION SYSTEM - DISINFECTION BYPRODUCTS, DISINFECTANT RESIDUALS

Contaminant

Violation

Y/N

Level

Detected

Range

Unit

Measurement

MCL in CCR units

PHG

MCLG

Likely Source of Contamination

 

TTHMs - Total Trihalomethanes

N

65

50.9/72.5

ppb

80

N/A

N/A

Byproduct of drinking water chlorination

Halocetic Acids

N

8.2

1.3/8.5

ppb

60

N/A

N/A

Byproduct of drinking water disinfection

Chlorine

N

0.41

0.36/0.47

ppm

4.0

4

4

Drinking water disinfection added for treatment

 

SECONDARY STANDARDS

Constituent

Violation

Y/N

Level

Detected

Range

Unit

Measurement

MCL in CCR units

PHG

MCLG or MLDRG

Likely Source of Contamination

Chloride

N

21

4.5/53

ppm

500

N/A

N/A

Runoff/leaching from natural deposits; seawater influence

Barium
N
0.4 ND/130 ppb 1000 N/A N/A Discharge of oil drilling wastes and from metal refineries, erosion of natural deposits

Iron

N

0.5

ND/160

ppb

300

N/A

N/A

Leaching from natural deposits, industrial wastes

Odor

N

1

1/1

TON

3

N/A

N/A

Naturally occurring organic materials

pH

N

7.0

6.9/7.7

STD unit

6.5/8.5

N/A

N/A

Comparison of “Alkalinity” & “Acidity” of water

Specific Conductance

N

482

320/2560

US

1600

N/A

N/A

Substances that form ions when in water; seawater influence

Sulfate

N

126

20/120

ppm

500

N/A

N/A

Runoff, leaching from natural deposits; industrial waste

Total Dissolved Solids (TDS)

N

307

210/610

ppm

1000

N/A

N/A

Runoff, leaching from natural deposits

Foaming Agents (MBAS)

N

0.3

N/D/0.020

ppb

500

N/A

N/A

Municipal and industrial waste discharges

 

ADDITIONAL CONSTITUENTS ANALYZED

Constituent

Violation

Y/N

Level

Detected

Range

Unit

Measurement

MCL in CCR units

PHG

MCLG or MRDLG

Likely Source of Contamination

Calcium

N

1