Town of Cary

Cary/Apex Water Treatment Facility

2004 Finished Water Quality Report

VOLATILE ORGANIC COMPOUNDS, mg/L

PARAMETER

RESULT

MCL

PARAMETER

RESULT

MCL

p-Isopropyltoluene

<0.0005

Xylenes (total)

<0.0005

10.00

Chloromethane

<0.0005

Dichloromethane

<0.0005

0.005

Dichlorodifluoromethane

<0.0005

o-Chlorotoluene

<0.0005

Bromomethane

<0.0005

p-Chlorotoluene

<0.0005

Chloroethane

<0.0005

m-Dichlorobenzene

<0.0005

Fluorotrichloromethane

<0.0005

p-Dichlorobenzene

<0.0005

0.075

Naphthalene

<0.0005

Vinyl Chloride

<0.0005

0.002

1,2,4-Trichlorobenzene

<0.0005

0.07

1,1-Dichloroethylene

<0.0005

0.007

Cis-1,2-Dichloroethylene

<0.0005

0.07

1,1-Dichloroethane

<0.0005

Dibromomethane

<0.0005

o-Dichlorobenzene

<0.0005

0.60

Hexachlorobutadiene

<0.0005

Trans-1,2-Dichloroethylene

<0.0005

0.10

1,1-Dichloropropene

<0.0005

1,1,1-Trichloroethane

<0.0005

0.20

1,3-Dichloropropane

<0.0005

Carbon Tetrachloride

<0.0005

0.005

1,3-Dichloropropene

<0.0005

1,2-Dichloropropane

<0.0005

0.005

1,2,3-Trichloropropane

<0.0005

Trichloroethylene

<0.0005

0.005

1,2,4-Trimethylbenzene

<0.0005

1,1,1,2-Tetrachloroethane

<0.0005

1,2,3-Trichlorobenzene

<0.0005

Tetrachloroethylene

<0.0005

0.005

2,2-Dichloropropane

<0.0005

1,1,2-Trichloroethane

<0.0005

0.005

n-Butylbenzene

<0.0005

1,1,2,2-Tetrachloroethane

<0.0005

1,3,5-Trimethylbenzene

<0.0005

Chlorobenzene

<0.0005

0.10

Tert-Butylbenzene

<0.0005

Benzene

<0.0005

0.005

Sec-Butylbenzene

<0.0005

Toluene

<0.0005

1.00

Bromochloromethane

<0.0005

Ethylbenzene

<0.0005

0.70

Total Trihalomethanes

0.0643

0.080

Bromobenzene

<0.0005

Chloroform

0.0243

Isopropylbenzene

<0.0005

Bromoform

0.0020

Styrene

<0.0005

0.10

Bromodichloromethane

0.0222

n-Propylbenzene

<0.0005

Chlorodibromomethane

0.0158

1,2-Dichlorethane

<0.0005

0.005

continued next column...

TREATMENT PROCESS INFORMATION

RADIOLOGICAL (pCi/liter)

CHEMICAL

TYPICAL DOSAGE

Gross Alpha

Potassium Permanganate (Seasonal Oxidant)

0.0-0.2 mg/L

Gross Beta

Uranium

5.5

20.1

Ozone (Oxidant)

0.0-6.5 mg/L

Radium 226

Aluminum Sulfate (coagulant)

35-50 mg/L

Radium 228

Polymer (coagulant aid)

0.20-0.30 mg/L

Caustic (pH control)

3.0-11.0 mg/L

HALOACETIC ACIDS, mg/L

Carbon (odor control)

5.0-20.0 mg/L

PARAMETER

RESULT

MCL

Polymer (filter aid)

0.05-0.15 mg/L

Trichloroacetic Acid

0.0085

N/A

Corrosion Inhibitor

1.00-2.60 mg/L

Dichloroacetic Acid

0.0169

N/A

Hydrofluorosilicic Acid (fluoride)

0.81-0.96 mg/L

Monochloroacetic Acid

0.0023

N/A

Chlorine (disinfectant)

5.0-12.0 mg/L

Monobromoacetic Acid

0.0017

N/A

Ammonia (disinfectant)

0.0-1.60 mg/L

Dibromoacetic Acid

0.0032

N/A

*No ammonia is fed during March of each year.

HAA5

0.0326

0.060

NOTE:

“<“ means “less than”

“>“ means “greater than”

“NA” means “Not Applicable”

“ND” means “None Detected”

“MCL” = “Maximum Contaminant Level” as established by EPA

“E-08” = 0.00000001

“E-09” = 0.000000001

LOD = Limit of Detection

“MFL > 10um” means millions of fibers per liter greater than 10 micrometers in length

If you have any questions regarding this report, please contact Kelvin Creech, Manager of the Cary/Apex Water Treatment Facility at (919) 362-5502

Town of Cary

Cary/Apex Water Treatment Plant

2004 Finished Water Quality Report

PHYSICAL & INORGANIC NON-METALS mg/L

PESTICIDES/SYNTHETIC ORGANIC CHEMICALS, mg/L

PARAMETER

RESULT

MCL

(Note: All results are below detection limit.)

pH , Units

8.07

<6.5,>8.5

PARAMETER

RESULT

MCL

TOC, Total Organic Carbon

3.30

Endrin

<0.00001

0.002

Turbidity, NTU’s (filtered)

0.07

0.3

Lindane

<0.00002

0.0002

Turbidity, NTU’s (finished)

0.07

0.3

Methoxychlor

<0.0001

0.04

Color, units

2.8

Toxaphene

<0.001

0.003

Odor, Threshold Odor Number

1.04

Carbaryl

<0.004

Specific Conductivity, uS/cm

236

Methomyl

<0.004

Total Dissolved Solids, mg/l

118

500

Dalapon

<0.001

0.2

Total Chlorine Residual, mg/l

2.0-4.5

Di(2-ethylhexyl)adipate

<0.0006

0.4

Carbon Dioxide, mg/l

1.69

Oxamyl (vydate)

<0.002

0.2

Alkalinity, mg/l as CaCO3

45.1

Simazine

<0.00007

0.004

Hardness, mg/l as CaCO3*

38.9

Picloram

<0.0001

0.5

Nitrate, mg/l

<1.00

10.00

Dinoseb

<0.0002

0.007

Nitrite, mg/l

<0.010

1.00

Hexachlorocyclopentadiene

<0.0001

0.05

Chloride, mg/l

22.7

250

Aldicarb Sulfoxide

<0.0005

Fluoride, mg/l

1.053

4.0

Aldicarb Sulfone

<0.0008

Total Phosphorus, mg/l

0.233

Metolachlor

<0.0008

Silica, mg/l

3.44

Carbofuran

<0.0009

0.04

Sulfate, mg/l

250

Aldicarb

<0.0005

Ortho-Phosphate

0.714

N/A

Atrazine

<0.0001

0.003

Total Asbestos: Count

Alachlor

<0.0002

0.002

Concentration (MFL)

<LOD

Heptachlor

<0.00004

0.0004

Bromate

<0.010

0.010

3-Hydroxycarbofuran

<0.004

Bromide

0.107

Heptachlor Epoxide

<0.00002

0.0002

*Note: Results are yearly averages.

Dieldrin

<0.0002

*Note: 30 mg/l hardness = 1.8 grains per gallon

Butachlor

<0.008

This is classified as “moderately soft”.

Propachlor

<0.006

TRACE METALS, mg/L

2,4-D

<0.0001

0.07

PARAMETER

RESULT

MCL

2,4,5-TP (Silvex)

<0.0002

0.05

Antimony

<0.003

0.006

Hexachlorobenzene

<0.0001

0.001

Arsenic

0.002

0.010

Di(2-ethylhexyl)phthalate

<0.00132

0.006

Barium

0.029

2.000

Benzo(a)pyrene

<0.00002

0.0002

Beryllium

<0.002

0.004

Pentachlorophenol

<0.00004

0.001

Cadmium

<0.001

0.005

Aldrin

<0.0002

Chromium

<0.020

0.100

PCB’s

<0.0001

0.0005

Copper

0.238

1.3

Dicamba

<0.001

Iron

0.059

0.300

Metribuzin

<0.0008

Lead

0.007

0.015

Chlordane

<0.0002

0.002

Manganese

0.013

0.050

DBCP

<0.00002

0.0002

Mercury

<0.0004

0.002

Ethylene Dibromide (EDB)

<0.00001

0.00005

Nickel

<0.100

Selenium

<0.010

0.050

Unregulated Contaminants for UCMR, mg/L

Silver

<0.005

0.10

PARAMETER

RESULT

MRL

Thallium

<0.001

0.002

Perchlorate

<0.004

0.004

Cyanide

<0.040

0.200

DCPA Acid Metabolites

<0.001

0.0010

Aluminum

0.047

0.20

MTBE

<0.005

0.005

MINERALS, mg/L

Nitrobenzene

<0.010

0.010

PARAMETER

RESULT

MCL

Acetochlor

<0.002

0.002

Calcium

10.82

2,4 - Dinitrotoluene

<0.002

0.002

Magnesium

2.84

2,6 - Dinitrotoluene

<0.002

0.002

Sodium

32.3

4,4 - DDE

<0.0008

0.0008

BACTERIOLOGICAL

EPTC

<0.001

0.001

PARAMETER

RESULT

MCL

Molinate

<0.0009

0.0009

Total Coliform (100/ml)

Absent

Absent*

Terbacil

<0.002

0.002

*in 95% of samples collected

Lab/WQ Rpt 2004.doc - Updated 5/05