2008 Water Quality for Claremont Tap or Fountain Water Samples

8/14/2019 2008 Water Quality for Claremont Tap or Fountain Water Samples

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2008

Claremont Water System

Water Quality Report

For You,

Only Our Best Will Do!

An Ongoing Commitment

to the Communities

We Serve.


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Water Quality, Customer Service and Healthy Communities

As your water service provider, Golden State Water Company (GSWC) takes itsresponsibility very seriously. Our 550 highly trained and dedicated employeeswork hard every day to deliver the highest quality water possible, as well as bestin class customer service. Water availability and conservation are important.Keeping customers inormed is, too. That is why we are pleased to presentGSWCs 2008 Water Quality Report.

GSWC maintains strict adherence to established drinking water standards. Thequality o your water routinely meets, or is better than, the standards required bythe U.S. Environmental Protection Agency, the Caliornia Department o PublicHealth and the Caliornia Public Utilities Commission. It is this commitmentto water quality and customer service that enables GSWC to deliver billions ogallons o clean, sae drinking water annually.

Similarly, to ensure water is delivered efciently, we are constantly improvingthe water production and delivery system, installing and maintaining wells,

pumps and pipelines. Our philosophy is to invest in ongoing and preventivemaintenance so that water inrastructure is kept in the best possible condition.Over the long term, this helps ensure operational costs are minimized andservice is consistent.

Ultimately, we know that water rates aect our hard-working customers. Thatis why we do everything possible to maintain air and competitive rates. GSWCis held to the highest accountability standards by the Caliornia Public UtilitiesCommission. Consumer advocates review our operations and investments to

ensure rates are commensurate with water service.

On behal o the men and women o GSWC, thank you or the opportunityto be your water provider. We will continue to work hard or you, striving orexcellence in all that we do. Please do not hesitate to contact us i you have anyquestions or eedback. Customer Service Representatives are available all day,every day, 365 days a year at (800) 999-4033 or via email [email protected].

Sincerely,

Floyd E. Wicks Alice Shiozawa

Chie Executive Ofcer Foothill District Manager

Claremont Water SyStem


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800-999-4033

About the CompanyAmerican States Water Company is an investor-owned utilitypublicly traded on the New York Stock Exchange under thetrading symbol AWR.

Through its subsidiary companies -Golden State WaterCompany and Chaparral City Water Company- AmericanStates Water Company provides water service to 1 out of 30

Californians located within 75 communities throughout10 counties in Northern, Coastal and Southern California(approximately 252,300 customers) and approximately 12,800customers in the city of Fountain Hills, Arizona and a smallportion of Scottsdale, Arizona. The Company also distributeselectricity to approximately 22,800 customers in the Big Bearrecreational area of California. Golden State Water Companyis an active contributor to the American Water WorksResearch Foundation.


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1 ProtectGolden State Water Company (GSWC)understands that protecting your watersupply is o the utmost importance.The source o your water supply ismonitored on a schedule approved bythe Caliornia Department o PublicHealth (CDPH), and any activitywhich may aect this supply is closelyanalyzed. Should action becomenecessary, GSWC will use the bestavailable technology to protect yourwater supply. GSWC welcomes andencourages consumers to share in ourvigilance. I you observe any activitiesthat could possibly endanger the watersupply, contact us immediately by

calling our 24-hour customer servicecenter at (800) 999-4033.

2 MonitorTo maintain the saety and integrity oyour water supply, GSWC constantlymonitors its water sources, treatmentprocesses and distribution systemor all constituents mandated by

the United States EnvironmentalProtection Agency (USEPA) and theCDPH. In 2007, GSWCs independentlaboratories conducted approximately90,000 analyses on over 21,000samples company-wide to provide thehighest quality o water delivered toyour tap.

3 Invest

GSWCs state certifed watertreatment and distribution operatorswork diligently to ensure watertreatment processes are maintainedto the highest standards. Whenevernecessary, new technologies are

adopted to beneft our customers.Water is delivered via a complexdistribution system made up omultiple sources o supply, storageacilities, pumps, pipes, valves, meters,and countless other components toprovide sae water to your tap. GSWCcareully monitors the system andinvests annually to ensure it is kept

in top condition, minimizing the risko major problems which are costly torepair.

4 ServeThe quality o GSWCs customerservice is just as important as thewater itsel. We pride ourselves onproviding best in class service and

personal assistance 24 hours a day,seven days a week, 365 days a year. Weare able to accomplish this by hiringthe best and brightest men and womenand by providing ongoing support andtraining to all employees. All GSWCemployees share a commitment toprovide the best possible service.

Delivering Excellence, One Drop at a TimeGSWCs Water Philosophy

Protect, Monitor, Invest, Serve

PROTECT

MONITO

R

INVEST

SERVE


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Where Does My WaterCome From?Water delivered to customers in theClaremont System is purchased waterrom the Three Valleys MunicipalWater District (TVMWD) andgroundwater pumped rom the Chino,Pomona, and Upper Claremont Heightsgroundwater basins. The Chino Basin issoutheast o the San Jose ault, south othe San Gabriel Mountains, and north

o the Santa Ana River. The Pomonabasin is northwest o the San Jose ault,east o the San Jose Hills and south oIndian Hill ault. The Upper ClaremontHeights Basin is north o FoothillBoulevard and east o Indian Hill Blvd.in northern Claremont.

For People with SensitiveImmune Systems . . .Cryptosporidium is a microbialpathogen ound in surace waterthroughout the U.S. When ingested,the organism may cause nausea,diarrhea, and other gastrointestinalsymptoms. The organism comes romanimal wastes and may be in suracewatersheds. Surace water is purchasedrom Metropolitan Water District o

Southern Caliornia (MWDSC), whichtested or cryptosporidium in 2007and did not detect it in the water. Idetected, cryptosporidium is eliminatedby an eective treatment combinationincluding sedimentation, fltration anddisinection.

CON

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T R A N S P I R A T I O N

E V A P O R A T I O N

G R O U N D W AT E R F L O W

5

800-999-4033


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Some people may be more vulnerableto contaminants in the water thanthe general population. Immuno-compromised persons, such as personswith cancer undergoing chemotherapy,

persons who have undergone organtransplants, people with HIV/AIDSor other immune system disorders,some elderly, and infants can beparticularly at risk of infections.These people should seek advice fromtheir healthcare providers about theirdrinking water.

The USEPA and the Centers forDisease Control (CDC) guidelineson appropriate means to lessen therisk of infection by Cryptosporidiumand other microbial contaminantsare available from the USEPAs SafeDrinking Water Hotline at(800) 426-4791.

Risk to Tap and BottledWaterDrinking water, including bottledwater, may reasonably be expectedto contain at least small amounts ofsome contaminants. The presence ofcontaminants does not necessarilyindicate that water poses a health risk.More information about contaminantsand potential health effects can beobtained by calling the USEPAsSafe Drinking Water Hotline at (800)426-4791.

The sources of drinking water(both tap water and bottled water)include rivers, lakes, streams, ponds,reservoirs, springs, and wells. As watertravels over the surface of the land orthrough the layers in the ground, itdissolves naturally occurring mineralsand, in some cases, radioactivematerial, and can pick up substancesresulting from the presence of animalor human activity.

In order to ensure that tap water issafe to drink, the USEPA and theCalifornia Department of PublicHealth (CDPH) prescribe regulationsthat limit the amount of certain

contaminants in water providedby public water systems. CDPHregulations also establish limits forcontaminants in bottled water thatmust provide the same protection forpublic health.

Contaminants inDrinking Water Sources

May Include:

Microbialcontaminants,suchasviruses and bacteria, which maycome from sewage treatmentplants, septic systems, agriculturallivestock operations, and wildlife.

Inorganiccontaminants,suchassalts and metals, which can benaturally-occurring or result fromurban storm water runoff, industrialor domestic wastewater discharges,oil and gas production, mining, orfarming.

Pesticidesandherbicides,thatmaycome from a variety of sources suchas agriculture, urban storm waterrunoff, and residential uses.

Organicchemicalcontaminants,including synthetic and volatileorganic chemicals, which areby-products of industrial processesand petroleum production, and canalso, come from gas stations, urbanstorm water runoff, agriculturalapplication, and septic systems.

Radioactivecontaminants,thatcan

be naturally occurring or be theresult of oil and gas production andmining activities.


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800-999-4033

Claremont Water System - Source Water Quality

Primary Standards -Health Based (units)

PRIMARYMCL

PHG(MCLG)

Range oDetection

AverageLevel

MCLViolation?

Most RecentSampling

Date

Typical Source oConstituent

Turbidity

Highest singlemeasurement o theTreated Surace Water(NTU)

TT = 1.0 n/a n/a 0.08 No 2007 Soil runo

Lowest Percent o allMonthly Readings lessthan 0.3 NTU (%)

TT = 95 n/a n/a 100% No 2007 Soil runo

Inorganic Constituents

Arsenic (ug/L) 10 0.004 ND - 2.7 ND No 2007

Erosion o natural

deposits; runo romorchards, glass andelectronics production

wastes

Fluoride (mg/L) 2.0 1 ND - 0.87 0.18 No 2007

Erosion o naturaldeposits; water additive

that promotes strongteeth; discharge rom

ertilizer and aluminumactories

Nitrate [as NO3] (mg/L) 45 45 4.3 - 42 19 No 2007

Runo and leachingrom ertilizer use;

leaching rom septictanks and sewage;erosion o natural

deposits

Selenium (ug/L) 50 (50) ND - 8.7 ND No 2007

Discharge rompetroleum,

glass, and metalrefneries; erosiono natural deposits;

discharge rommines and chemical

manuacturers; runorom livestock lots (eed

additive)

Volatile Organic Constituents

1,1-Dichloroethylene(ug/L)

6 10 ND - 2.2 ND No 2007Discharge rom

industrial chemicalactories

Radioactive Constituents

Uranium (pCi/L) 20 0.43 1.7 - 3.6 2.6 No 2007Erosion o natural

deposits


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Claremont Water System - Source Water Quality

Secondary Standards -Aesthetic (units)

SECONDARYMCL

PHG(MCLG)

Range oDetection

AverageLevel

MCLViolation?

Most RecentSampling

Date

Typical Source oConstituent

Color (units) 15 n/a ND - 5 ND No 2007Naturally-occurringorganic materials

Chloride (mg/L) 500 n/a 3 - 81 48 No 2007Runo/leaching rom

natural deposits;seawater infuence

Copper (mg/L) 1 n/a ND - 0.08 ND No 2007

Internal corrosion ohousehold plumbing

systems; erosiono natural deposits;leaching rom wood

preservatives

Foaming Agents [MBAS](ug/L)

500 n/a ND - 120 ND No 2007Municipal and industrial

waste discharges

Specic Conductance(uS/cm) 1600 n/a 280 - 590 439 No 2007

Substances that orm

ions when in water;seawater infuence

Sulate (mg/L) 500 n/a 20 - 55 39 No 2007Runo/leaching rom

natural deposits;industrial wastes

Turbidity (units) 5 n/a ND - 0.4 0.1 No 2007 Soil runo

Total Dissolved Solids(mg/L)

1000 n/a 200 - 440 286 No 2007Runo/leaching rom

natural deposits

Zinc (mg/L) 5 n/a ND - 0.06 ND No 2007Runo/leaching rom

natural deposits;industrial wastes

Unregulated ConstituentsRequiring Monitoring(units)

NoticationLevel

PHG(MCLG)

Range oDetection

AverageLevel

MCLViolation?

Most RecentSampling

Date

Boron (ug/L) 1000 n/a ND -192 ND n/a 2007

Chromium, Hexavalent[CrVI] (ug/L)

n/a n/a ND - 9.8 6.7 n/a 2007

Vanadium (ug/L) 50 n/a ND - 9.9 1.9 n/a 2007

Other Parameters (units)Notication

LevelPHG

(MCLG)Range oDetection

AverageLevel

MCLViolation?

Most RecentSampling

Date

Alkalinity (mg/L) n/a n/a 60 - 210 121 n/a 2007

Calcium (mg/L) n/a n/a 23 - 78 42 n/a 2007

Hardness [as CaCO3](mg/L)

n/a n/a 45 - 270 147 n/a 2007

The sum of polyvalent

cations present in

the water, generally

magnesium and calcium.

The cations are usually

naturally-occurring.

Hardness [as CaCO3](grains/gal)

n/a n/a 2.6 - 16.0 8.6 n/a 2007

Magnesium (mg/L) n/a n/a 3.9 - 18.0 12.4 n/a 2007

pH (pH units) n/a n/a 7.6 - 8.5 8.1 n/a 2007

Potassium (mg/L) n/a n/a 1.4 - 3.7 3 n/a 2007

Radon (pCi/L) n/a n/a ND - 668 205 n/a 2007

Sodium (mg/L) n/a n/a 7 - 43 30 n/a 2007

Reers to the saltpresent in the water and

is generally naturallyoccurring.


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Claremont System - Distribution Water Quality

MicrobiologicalConstituents(units)

PRIMARYMCL

PHG(MCLG)

ValueMCL

Violation?

Most RecentSampling

Date

Typical Source ofConstituent

Total Coliform Bacteria40 Samples/Month(Present / Absent)

No more than5% of monthlysamples are

positive

(0)Highest Percent of monthly

samples positive was1.5 %

No 2007Naturally present in the

environment

Disinfection Byproductsand DisinfectantResiduals (units)

PRIMARYMCL

(MRDL)

PHG(MRDLG)

Range ofDetection

Highest4-QuarterlyAverage

MCLViolation?

Most RecentSampling

Date


Chlorine [as Cl2] (mg/L) (4.0) (4) 0.06 - 3.3 1.9 No 2007Drinking water

disinfectant added fortreatment

HAA5 [Total of FiveHaloacetic Acids] (ug/L)

60 n/a ND - 27 13 No 2007Byproduct of drinking

water disinfection

TTHMs [Total of FourTrihalomethanes] (ug/L)

80 n/a ND - 60 39 No 2007Byproduct of drinking

water chlorination

Inorganic Constituents(units)

ACTIONLEVEL

PHG(MCLG)

SampleData

90th %Level

MCLViolation?

Most RecentSampling

Date


Copper (mg/L) 1.3 0.17

None of the31 samplescollectedexceededthe action

level.

0.27 No 2005

Internal corrosion ofhousehold plumbing

systems; erosionof natural deposits;leaching from wood

preservatives.

Lead (ug/L) 15 2

None of the31 samples

collectedexceededthe action

level.

4.7 No 2005

Internal corrosion ofhousehold plumbing

systems; dischargesfrom industrialmanufactures; erosion

of natural deposits.


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Laboratory AnalysesOver the years we have taken

thousands of water samples in orderto determine the presence of anyradioactive, biological, inorganic,volatile organic or synthetic organiccontaminants in your drinking water.The enclosed table shows only thosecontaminants that were detected inthe water.

Although all of the substanceslisted here are under the MaximumContaminant Level (MCL), we feel itis important that you know exactlywhat was detected and how much ofthese substances were present in thewater. Compliance (unless otherwisenoted) is based on the average level ofconcentration being below the MCL.The state allows us to monitor forsome contaminants less than once peryear because the concentrations do notchange frequently. Some of our data,though representative, is more than ayear old.

Unregulated contaminant monitoringhelps USEPA and the CaliforniaDepartment of Public Health to

determine where certain contaminantsoccur and whether the contaminantsneed to be regulated.

ChloraminationThe water imported from Three

Valleys Municipal Water District(TVMWD) contains chloramine.Chloramine is added to the waterfor public health protection.Chloraminated water is safe for peopleand animals to drink, and for all othergeneral uses.

Three special user groups including

kidney dialysis patients, aquariumowners, and businesses or industriesthat use water in their treatmentprocess must remove chloramine fromthe water prior to use.

Hospitals or dialysis centers shouldbe aware of chloramine in the waterand should install proper chloramine

removal equipment, such as dualcarbon adsorption units.

Aquarium owners can use readilyavailable products to remove orneutralize chloramine.

Businesses and industries that usewater in any manufacturing processor for food or beverage preparationneed to be aware of a change inwater disinfectant from chlorine tochloramine. Chloramination mayrequire companies to adjust or upgradetheir current treatment system.Businesses should contact their watertreatment equipment supplier todetermine if chloramine could impacttheir system.

Should you have any questions orconcerns regarding chloramine in yourwater, please contact TVMWD at(909) 621-5568.


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800-999-4033

NitrateNitrate in drinking water at levels

above 45 mg/L is a health risk orinants o less than six months oage. Such nitrate levels in drinkingwater can interere with the capacityo the inants blood to carry oxygen,resulting in a serious illness;symptoms include shortness o breathand blueness o skin. Nitrate levelsabove 45 mg/L may also aect the

ability o the blood to carry oxygen,in other individuals, such as pregnantwomen and those with certain specicenzyme deciencies. I you are caringor an inant, or you are pregnant, youshould ask advice rom your healthcare provider.

RadonRadon is a radioactive gas oundthroughout the United States thatcant be seen, tasted or smelled. It canmove up through the ground and intoa home through cracks and holes inthe oundation and can build up tohigh levels. Radon can get into indoorair when released rom tap water romshowering, washing dishes, and other

household activities. Radon enteringthe home through tap water will, inmost cases, be a small source in indoorair as compared to radon entering thehome through soil. Radon is a knownhuman carcinogen and breathing aircontaining radon can lead to lungcancer. Drinking water containingradon may cause increased risk o

stomach cancer. I you are concernedabout radon, testing the air in yourhome is inexpensive and easy. Forinormation call the USEPAs RadonHotline at (800) SOS-RADON.

TurbidityTurbidity is a measure o the

cloudiness o the water. It is monitoredbecause it is a good indicator othe eectiveness o surace waterltration.

FluoridationMWDSC, one o GSWCs sources owater supply began fuoridating water

late in 2007. Customers receivingwater rom MWDSC will see nodierence in the taste, color or odor otheir water as a result o fuoridation.Fluoridation will not change theway you normally use water orsh, pets, or cooking. Children whoreceive fuoride supplements shouldconsult their doctor or dentist. Forinormation regarding fuoridation oyour water, please contact MWDSC at(213) 217-6850, option 2.


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partspermillion(ppm)or milligrams per liter(mg/L)

partsperbillion(ppb)or micrograms per liter

(g/L)

partspertrillion(ppt)or nanograms per liter(ng/L)

Grainspergallon(grains/gal) Ameasurement o waterhardness oten used orsizing household water

soteners. One grainper gallon is equal to17.1 mg/L o hardness.

MicroSiemenspercentimeter (S/cm) A measurement o asolutions ability toconduct electricity.

NephelometricTurbidity Units (NTU) A measurement othe clarity o water.Turbidity in excess o

5 NTU is noticeable tothe average person.

PicoCuriesperliter (pCi/L) Ameasurement oradioactivity in water.

42 gallons(large bathtub)

14,000 gallons(average swimming

pool)

14,000,000 gallons(average lake)

Measurements

To ensure the best possible quality, water is sampled and tested

consistently throughout the year.

Contaminants are measured in:

Parts per million:

1 drop in 14 gallons

1 second in 12 days

1 inch in 16 miles

Parts per billion:

1 drop in 14,000 gallons

1 second in 32 years

1 inch in 16,000 miles

Parts per trillion:

1 second in 32,000years

1 inch in 16 millionmiles

10 drops in enoughwater to fll the RoseBowl

I this is difcult to imagine, think about these comparisons:


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800-999-4033

Glossary of Terms

Maximum Contaminant Level (MCL)The highest level of a contaminantthat is allowed in drinking water.Primary MCLs are set as close to thepublic health goals and maximumcontaminant level goals as iseconomically and technologicallyfeasible. Secondary MCLs are set toprotect the odor, taste and appearance

of drinking water.

Caliornia Notifcation Level (NL)Non-regulatory, health-based advisorylevels established by the CaliforniaDepartment of Public Health (CDPH)for contaminants in drinking waterfor which an MCL has not beenestablished.

Maximum Contaminant Level Goal(MCLG)The level of contaminant in drinkingwater below which there is no knownor expected risk to health. Maximumcontaminant level goals are set bythe U.S. Environmental ProtectionAgency (USEPA).

Maximum Residual DisinectantLevel (MRDL)The level of a disinfectant added forwater treatment that may not beexceeded at the consumers tap.

Maximum Residual DisinectantLevel Goal (MRDLG)The level of a disinfectant added forwater treatment below which thereis no known or expected health risk.MRDLGs are set by the USEPA.

Primary Drinking Water Standard(PDWS)

MCLs and MRDLs for contaminantsthat affect health along withtheir monitoring and reportingrequirements, and water treatmentrequirements.

Public Health Goal (PHG)The level of a contaminant indrinking water below which there is

no known or expected risk to health.Public health goals are set by theCalifornia Environmental ProtectionAgency (CalEPA).

Regulatory Action Level (AL)The concentration of a contaminantwhich, if exceeded, triggers treatmentor other requirements that a watersystem must follow.

Treatment Technique (TT)A required process intended toreduce the level of a contaminant indrinking water.


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Source Water Assessment

A source water assessment was conductedor each o the groundwater wells serving thecustomers o GSWC Claremont System inNovember 2001.

10 o the 20 (total groundwater wells) sources are

considered most vulnerable to one or more o theollowing activities, which have been associatedwith contaminants that have been detected inthe water supply:

Septicsystemshighdensity,chemical/petroleum processing/storage, photoprocessing/printing, hardware/lumber/partsstores

All o the 20 sources are also considered mostvulnerable to one or more o the ollowingpossible contaminating activities. Contaminantsassociated with these activities have not been detected in the water supply:

Abovegroundstorage,Housinghighdensity,Parkinglots/malls,Transportation corridors railroads, Transportation corridors reeways/statehighways, drinking water plants, wells water supply, dry cleaners, parks,home manuacturing, wastewater treatment plants, lumber processing andmanuacturing, mining sand/gravel, automobile gas stations

A copy o the assessment may be viewed at:CDPH Los Angeles District Ofce or GSWC Claremont System1440 W. Temple Street 401 S San Dimas Canyon RoadLos Angeles, CA 90026 San Dimas, CA 91773

You may request a summary o the assessment be sent to you by contacting:DPH Los Angeles District Ofce at (213) 580-5743

For more details or inormation contact:Stacey Roberts at (800) 999-4033


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800-999-4033

Cross ConnectionControl ProgramGSWCs Cross Connection ControlProgram provides a level o certaintythat the water in your distributionsystem is protected rom possiblebackfow o contamination sourcesrom within commercial and/orindustrial customers premises. Foranswers to commonly asked questionsand additional inormation please visitthe cross connection control website atwww.aswater.com/xconnect.

If You Have QuestionsContact UsFor inormation about your waterquality or to nd out about upcomingopportunities to participate in publicmeetings, please contact StaceyRoberts, Water Quality Engineer,at (800) 999-4033. Visit us online atwww.aswater.com or e-mail us [email protected].

Este inorme contiene inormacinmuy importante sobre su agua de beber.Tradzcalo o hable con alguien que loentienda bien.


16/16

PresortedStan

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U.S.

Postage

PAID

Pasa

dena,

CA

PermitNo.

1132

GoldenState

WaterCompany

401S.SanDimasCanyonRoad

SanDimas,C

A91773

WarmWeatherTips

Approximately50-70%o

f

ouseholdwaterisused

utdoorsforwateringlawns

ndgardens,somakethemo

st

fthewateryouuse.Never

waterduringthehottesttim

es

fthedayorwhenitswindy

.

Byplantinggrassesand

shrubsthatuselittlewater,

youcanreduceyourwatering

byupto50%.Logonto

www.b

ewaterwise.c

om

forali

st

ofwater-wiseplants.

Whenlandscaping,usepla

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candecoratecreativelywit

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interestingobjectsthatneed

nowateratall,suchasrocks,

bricks,benches,gravel,and

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Hosingdownyourdrivewa

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25gallonsofwater.Clean

itwithabroomorblower

instead.

Waterlawnsandgardenso

nce

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k,

includingrainfall.

Documents

2008 Water Quality for Claremont Tap or Fountain Water Samples