WATER QUALITY RPT 2006

We're pleased10 J)fE!soot lo you ttus yea(s -	Oualily Waler Report. This report is designed lo inform you aboullhe  qualily waler  and services we deliver lo you everyday. Our constant goal is lo provideyou willl a safe and de!)endable soJlllly ol drinking waler. We wanl you lo undersland lhe efl<>rts we make lo contn.taly improve the water treatment process andprotect our water resources. We arc committed to ensuring the quafity of your water.Os water source is three wells that draw water from the Floridan aquifer.   The water is then treated by reverse osmosis, chlorinated for disinef ction,  fluoride is added to help prevent tooth decay, and phosphate inhibitorIs addedfor co,rosion control.

Florida's Department of Environmental Protection is in the process of conducting Source Water Assessment (SWA) for all public water systems throughout  Florida . These assessments willidentify and assess any potential sourcesof contamination in the vicinityof your water supply.   A SWAwas oonducted for this system in 2004. It found that sotne of our system' s wells are at low risk for contamination from one domestic wastewater source and moderate risk from twopetroleum storage tanks. A SWA report for this system is available at the OEP SWAPP web site:

This OrinkingWaet r Quality Report shows our water quality results and whatthey mean.
tr you  have any  questions about this report. concerns  about your watef utility,or  want to obtain  a  copyof  this report,  please contact  Mr.  William Hayden al (772) 340-0220 ex Mr. Charles Sweal ol  (407) 629-6900.  You may pickup  a  copy of  lhis  report  al  450  SW  Ulilily  Drive, Port  St  Lucie,  Florida  34986. This feportwill be mailed to our customers. We want our valued  customers  to  be  Informed  about  took watef  utility.  tf you  wa.nt  to  learn more,  please attend any of our regular1y sc h edu led Boar d m ee tings. T h ey a re he ld on the firs t an d th ird Tuesday o f the mo n th a t 9 :0 0 am at the Sun lig h t Co m mun ity
Chu fctl a t 4 77 S .W. Cas h me r e B ou lev a rd, P ort S t L uci e, F lorida 34986.

St. Lucie West Services District routinely monitors for contaminants in your drinking water according to Federal and State laws, rules and regulations. Except where indicated otherwis,e  this report Is based on the results of ouf mooitoting for the pefiod of Januaty 1   to December 31st2006. Also included are test results in earlier years for contamil'l8ntssampfed less often than annually. For contaminants not required to be tested for in 2006, test resutts are fof the most recent testing done in accordance with regulations authorized by the state and approved by the United States Environmental Protection Agency (EPA).

As  water  travels over  the  land  or  undergroond it can  pick  up  substances  or  contaminants  such  as  micfoOOS, i norganic   and    orga n ic   chemica    ls,  and ra dioactiv e su b s·tan ces.	All d rinki n g w ater, i nclu d ing b ottfed d rinki ng w ater . ma y be re a sona bl y e xpe c te d to conta i n a t feas t s ma ll am ounts o f some contaminants. It's important  to  remember  that  the  presence  of  these  contaminants  does  not  necessarily  pose  a  health  risk.  More  lnfonnatlon  about contaminants  and  potential  health  effects  can  be  obtained   by  calling  Uie  Environmental  Protection   Agency's  Safe  Drinking  Water   Hotline   at  1-S00-426- 4791.

The soorces of drinking water (both tap water and bottled water) include rivers. lakes. stream, s  ponds, reservoi,rs  springs, and wells.  As water travels over the surfa ce of the land or through the ground, it dissolves naturally-occurring minerals and, in some cases, radioactive material, and can pkk up substanc:es resulting from the presence of animals or fromhumanactivity.

Contaminantsthat maybe present in source water include:

Microbial contaminants, such as viruses and bacteria, which may oome from sewage Ueatment plants, septic systems, agricultural livestock operations, and wildlife.

Inor ganic contam inants. such as satts aod melats. which can be naturalty-ocwrringor res.ult from urban storm water runoff. industrial or domestic wastewater discharges, oil and gas production, mining, or farming.

Pes ticides and herb icid es. which may comefrom a variety of sour08:S such as agriculture, urban storm water funoff, and residential uses.

Organic  c hemical  c ontaminants, incfuding  synthetic  and volatile  organic chemicals,  which  are  by-products of Industrial  processes and  petroleum production, and can. also. come from gas stations. urban storm water runoff,and septic systems.

Radi oactive con taminan ts, which can be naturally-0eeurrin9, or be the result of oil and gas prOducli on or mining activities.

In  order 10  ensure that tap water is safe to dfi.n.k, EP A prescribes regulations which limil  the amount of certain contaminants in water provided by public water systems. FDA regulations establish limits for contaminants in bottled water which must provide the same protection for public health.

In the anached data table yoo wiU find many terms you might not be familiar with. To help you better understand those tenns we've provided the following key to these terms· abbreviations and definitions.:

TERM ADDearino in TABLE	DEFINITION	
Act.onLevel	AL	Tho concen tration of a contaminant whk h, ifexceeded, triggefs treatment or otherreQuire rnen-ts wtiic h a wa ter s"V"i.Pl m  mu  st  foGow	
Not  A   .......u.  cabl e	NIA	Does not an n iv .	
NoU)etected
Parts r million	ND
,	Labof'arnrv a M j5 indicates that theconstituent was not Oresent
O,M	lit.erI   ITIC¥/I -    one	V Y	t of analvr to one mil ion n:1rts nv weiaht of the water <=mniA.	
Parts -r billion
P icocu ries na,rlfter Maximum Contaminant Level	,~ 1/L
MCL	0,	liter ,. ...,111 -one"""'"",...,.......,.ht of ana.._,.,.. to one bi llion .-.-. bv 1Nelaht o f the water samOle.
-	rlit81'Is a measure of the radioadlvltvIn water
The "Maximum AJIOwelr is the highestlevel ofa contaminant that is allowedin drinkingwater. MCLs are
set as closetothe MCLGs as feasibleusinn thebestavailable treatment technolnnv.	
Maximum Contaminant
Level Goal	MCLG	The·Goaris the level of a contaminant in drinking water below which th8feis no knownor expected risk to
heal1h. MC LGs al low to, a ma min ol safelv.	

Ma.ximum residual disinfectant level	MROL	The highest level of a disinfectant allowed in drinking water. Themls convincing evidence lhataddltlon of disinfectant ts necessarv for control of microbial contaminants.	
Maximum residual
disinfectant levelaoal	MROLG	The levelof a drinking water disinfectant below which there is no known or expected risk to hea lth,
MRDLGs do nol reffect the benefits of the use or disinfectants to control mictOblal contaminants.	

		.  .	.      •,•  •'.;• -     -  --      '#     -	
Contaminant
and
Unit of Measurement	MCL
Violation Yes/No	
Level
Detected	
Range	Monitoring
Period
MonthfYear	
Likely Source of Contamination	
			Results				
esults in theLevelDetected column for radiological contaminants, inorganic contaminants, synthetic organic contaminants including
pesticides and herbicides, and volatile organic contaminants are the highest average at any of the sampling points or the highest detected evelat any samptina point, dependinQ on the samplinq franuency.	
Radiological Contaminants	
Radium 226 (pCi/l)	NO	1.3	ND -1.3	0	5	1/06, 5/06 IY of natural and man-madedeposits
&12/06	
lnoroanic Contaminants	
Fluoride	(ppm)	No	0.93	0.54 • 0.93	4	4	1/06 lhrough
12/06	Erosion of natural deposits; water additive which
oromotes strona teeth.	
Chromium	(ppb)	No	1.9	N/A	10	10	10/06	Discharge rrom steel and pulp mills; eroSion of natural de.........,its	
Ni tr ate (ppm)	No	0.0047	ND-0.0047	10	10	1/06, 3/06 &
10/06	Runoff fromrertili%er use . leaching from septic
"anks. sewage; erosionof natural deposits	
Sodium	m=•	No	64.8	N/A	N/A	160	10/06	Satt water intrusion. leachiJlQ from soil	
IHMs andStage1 Disinfectant/Disin fectionB y-Product (0/DBPlContaminants	
•	Fortne following ontaminants monitored under Stage 1 0 /0BP rogulations, the level detected is the highest annuaJaverage of the quartetly averages: Bromate. Chloramines, Chlorine, Haloacetic Acids, and/ot TTHM(MCL 80 ppb}. Range of Results is the range of results (lowest to
hiahestl at the individual samolinn sites.	
Contaminant and Unit of Measurement	Oates of	MCL	Level Detected	Range of Results	MCLG or
MRDLG	MCLor
MROL	Likely Source of Contamination	
	sampling Violation
Imo."".l	YIN						
Chlorine (ppm)	1106·1<JVOI	N	1.4	1.1- 1.6	MROLG: 4	MROL:	4,0	Water additive used to control microbes	
Haloacetic acids (five) HAASS) (ppb)	1/06-
12/06
Quarterlv	N	9.2	0.35-7.7	NA	MCL• 60	By.product of drinking water disinfection	
TTHM (Total rihalomethane)s(ppb)	1/06 •
12/06
Quarterlv	N	28	5.6-23.5	NA	MCL:	80	By-product of drinking watot disinfection	
Leadand Conil'\Ar 1 1a.o Water)	
	
Action Level Violation
IYesfNo		Number of					
Contaminant
and
Unit of Measurement		90..
Percentile	Sampling
Sites Exceeding	
MCLG	
Action Level	M on itorin g Period Month/Year	
Likety Source of Contamination	
		Result	the Action					
			Level					
:opper (tap water) (pp,n)	No	0.07	0	1.3	Al: 1.3	9/06	:;.orros ion of househo l d plumb ing systems; erosion of natural deposits; leaching from wood
)reservatives	
_ead (tapwater)	(ppb)	No	1.4	0	0	AL:	15	9106	.....orrosion of household plumbing syste,ns,
;!f'OSion of natural de	its	

Infants and young children are typicalty more vulnerable to lead in drinking water than the general population. It ls possible that lead levels at your homo may bG higher than at other homes In the community as a result of materials used in your home's plumbing. If you are concerned about elevated lead levels in your home's water, you may wish to have your water tested and flush your tap 30 seconds to 2 minutes before using tapwater.  Additional information is available from the Safe Drinking Water Hotline (1-800-426-4791).
Based on the population served by the system, we are required to collect and submit twenty bacteriological samples from the water distribution system to the regulatory agency (Fla. O.E.P.) for each monthly compliance period. For the month of November 2006 we lnadvertenuy collected and submitted nineteen samples. We haverewrittenour bacteriologjcal sample collection protoeol to ensure this type of incident does not reoccur.
In April and September of 2006 we retested the homes within our water system. None of the samples collected exceeded the Lead ot Copper action level set by the U.S. Environmental Protection Agency. The water chemistry is in balance and is not corrosive to homeowner's internal plumbing. The Lead and Copper testing results provides our customers another assurance of the superior water quality supplied by the District to out customers. We' re ptoud that your drinking water meets ot exceedsall Federal and State requirements for Leadand Coppe.r
MCl s are set al very stringent levels. To understand the possible hea1h e ffects described !Of many regula ted consti tuen ts. a person would have 10 drin k 2 liters of water every day at the MCL level for a lifetime to have a one-in-a-mililon chanoe of having the described health effecl
Some people may be more vulnerable lo contaminants in drinking water than the general population. lmmuo ompromised persons such as persons with cancer undergoing chemotherap, y persons who have undergone organ transplants, people withHIV/AJOS or other immune system disorders. some elderly, and infants can be particularty at risk from infections.These people should seek advice about drinking water from thei r hea lth care providers. EPA/CDC guidelines on appropriate means to lessen the risk of infection by cryptosporidium and other miaobiologicalcontaminants are available frotn lhe Safe DrinkingWater Hotline (800-426-4791).
We at Sl Lucie Wost Services District would like fot you to understand the efforts we make to continualy improve the water treatment process and protect our water resources. We are committed to insuring the quality of your water. If you have any qoestions or conoems about the information provided, please feel ftee 10 call any of the numbers listed within this report.