Annual Finished Water Quality Report 2016

Tests of Finished Water From the EM Johnson Water Treatment Facility 2016 Annual Finished Water Quality Report

The City of Raleigh consistently provides a reliable supply of high quality drinking water that surpasses all State and Federal drinking water quality requirements. The following tables represents levels of regulated and unregulated water quality parameters sampled in 2016. The water quality test results indicate that your drinking water complies with all of the EPA's drinking water standards in 2016. If you have any questions regarding this report, please

contact the City of Raleigh Drinking Water Laboratory at (919)996-2870.

Microbiologicals Contaminant

MCL

Your water

Sources of Contaminant

Cryptosporidium, Oocysts/L ( 12/19/16)

Human and animal fecal waste

0

NA

Giardia, cyst/L ( 12/19/16)

Human and animal fecal waste

0

NA

HPC measures a range of baceria that are naturally present in the environment

Heterotrophic Plate Count, MPN/ml , (AVG) Distribution

32

NA

0.83% were positive

Total Coliform (240 samples per month), Distribution

Coliforms are naturally present in the environment

NA

(Note: If either an original routine sample and/or its repeat samples are E coli positive, a Tier 1 violation exists

Human and animal fecal waste

E Coli (240 samples per month), Distribution

0% were positive

Human and animal fecal waste

Viruses* (12/28/16)

Negative

NA

*Viruses include Adenovirus, Astrovirus, Rotavirus and Panternterovirus

Disinfectants and Disinfection Byproducts Contaminant Your water

MCL

Sources of Contaminant

Byproduct of drinking water disinfection

Bromate, mg/l

<0.005

0.01

Byproduct of drinking water disinfection

Haloacetic Acids (HAA5), ppb

21.5

60

Byproduct of drinking water disinfection

Total Trihalomethanes (TTHMs), ppb

22.9

80

Naturally present in the environment

Total Organic Carbon, ppm

2.26

na

Water additive used to control microbes

Chloramines, ppm

2.70

MRDL = 4

Lead and Copper: Sample Date 2016 Contaminant

MCL

Your water

Sources of Contaminant

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

Copper (ppm) (90th percentile) Lead (ppb) (90th percentile) Asbestos Contaminant

0.04

AL = 1.3

<3

AL = 15

MCL

Your water

Sources of Contaminant

Decay of asbestos cement water mains; erosion of natural deposits

Total Asbestos (MF/L)

<0.2

7

EMJWTP 2016 Annual Finished Water Quality Report

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