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Rainwater: How to Catch It - What To Do With It - AquaSoleil

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Rainwater:HowtoCatchItНІ
WhatToDoWithIt
CodesAnd
Regulations
ARCSA–– TheAmericanRainwatercatchmentSystemsAssociation
ASPEНІ TheAmericanSocietyforPrecisionEngineering
E.W.BobBoulware,P.E.Chairman
RAINWATERCATCHMENTDESIGN
AND
INSTALLATIONSTANDARDS
REVISED2010
RainwaterCatchmentDesignAnd
InstallationStandards
• Definition–– FromRooftopOrAboveground
surface
• Appliesto
new,alterations,additions,maintenanceand
repairtoexisting
• Localplumbingregulationsonlocal
conditions,requirementsandrestrictionsНІ
first
PerformanceObjectives
y Providesafeguardsfromillness,asa
consequenceofpoordesign,installation,
maintenanceorillegalwork
y Safeguardthepublicfrominjuryorlossfroma
failureofthesupply,installation,maintenance,or
operationoftheRWSystem
y TheRWSystemwillservetomaintainor
enhancethequalityoftheenvironment,while
insuringcompliancewiththeintentof
regulations
TheStandardAppliesTo:
y NonНІPotable
y Potable
y FireProtection
y Agricultural
y Industrial
y RelatedStandards:
Еѓ NSFP151:HealtheffectsfromRWCatchmentsystem
components
Еѓ NSF/ANSI61:DrinkingWaterSystemhealth
PrimarilyCommercialwithResidentialimplications
Еѓ Effects
2.0AcceptableMaterialsand
Components:
y
y
y
y
y
y
y
y
y
y
y
AmericanNationalStandardsInstitute(ANSI)
ASTMInternational(ASTM)
AmericanWaterWorksAssociation(AWWA)
AmericanSocietyofMechanicalEngineers(ASME)
CopperDevelopmentAssociation(CDA)
CraneTechnicalpaperNo.410
InternationalOrganizationforStandardization(ISO)
NationalWeatherService
NOAATechnicalMemorandum
NSFInternational
AmericanPublicHealthAssociation
3.1CollectionParameters
– 1.1Allpipingandplumbingcomponentmaterials
approvedforthespecificuseby:
– localplumbingcodes
– BelistedbyanANSI/NSFaccreditedproduct
certificationprogram
– FromroofingͲcollectiontankapproved
– Allwashedbeforeputintoservice
– 360g.orbeloworminoroutdooruse–– no
treatmentrequired
CollectionParameters–– cont.
y Roofing,guttering,piping,fittings,valves,
screens,downspouts,leaders,flushingdevices,
tanksandliners,approvedforintendeduse.
y Tankinteriorsurfacesandequipmentwashed
cleanbeforebeingputinservice
y Forwaterstoragevolumeslessthan200gallons
orintendedforminorutilityirrigationand
gardenuse,notreatmentisrequired.
y Waterlevelcontroldevicesthatcontrolpumps,
makeupwatervalves,etc.incontactwithwater
supply–– mercuryfree
CollectionParameters–– cont.
y Overhangingvegetation,airbornepollutiontobe
avoided
y Standardsdonotapplytovehicularparkingorother
similarsurfaces
y 3.1.2ForNonНІPotableapplication
y Collectionsurface:aboveground,hard,impervious
y Treatedforintendeduse
y Notreatmentrequiredforsubsurface,ag orgarden
use
y ForabovesurfaceirrigationНІconsultlocalauthority
3.2ConveyanceSystem
• Allcomponentsapprovedforintendeduse
• Guttersanddownspoutsystemsleadingto
thecisternfittedwithdebrisextruderor
equivalentdevice
• Forpotableuse–– roofwasherorpreͲ
filtrationsystembeforecistern
– Amountadjustedtominimizecontamination
3.2Roofwasher–– cont.
Еѓ Amountadjustedtominimizecontamination
(Figure5.1)
x
x
x
x
x
x
x
x
x
.20””/1000sq’’–– high=124.6g.
.08–– medium=49.8g.
.02–– low=12.46g
Debrisscreen–– nonͲcorrosive,.25Ͳ.5””opening
Firstflushwaterpipedaway,noerosion
Firstflush/screenforeachcisternnotinseries
Roofwasher–– automatic/selfdraining
Accessibleforregularmaintenance
MaintainedaccordingtoMfg.specs.
3.3Cisterns/Storage
– Musthaveaccessforinspectionandcleaning
– Canbeaboveorbelowgrade
– Complywithlocalauthority
• Certifiedbymfg.forintendeduse
– Abovegradecisternprotectedfromdirect
sunlightandopaque,UVresistant
– Belowgrade–– manhole4””abovegradeandsoil
slopeaway
– Protectcisternandpipingfromfreezing
3.3Cisterns/Storage–– cont.
• InstalledaccordingtoMfgspecs
– BelowgradecisternscomplywithOSHAandcodesandregs.
relatedtoexcavationandbackfillsafety
В» Abovegradeinstalledonsturdy,levelbasesecuredwith
adequatedrainage
• Belowgradeinstalledwheresoilcanbecomesaturated
–– ballastedorsecured
• Cisternprovidedwithmeansofdrainageandcleaning
• Opensprotectedfromunintentionalentry
• Openinglargeenoughforentrymarked:““DANGER––
CONFINEDSPACE””
3.3.3Inlets,outlets,Openings
• Waterentertankwithminimalturbulence
• Overflowoutletscreenednogreaterthan
0.125””
• Overflowoutletsizedtogutterand
downspoutsizerequirements
• Overflowdischargedasstormwater
requirementsortoinfiltrate
3.4Pump
• Pumpandcomponentsapprovedforpotable
use
• Minimumof15psiatlastorhighestoutlet
• Maximumpressure80psi
• Ifpumpcanproducemorethan75psiadd
pressureНІreducingvalve
• 3.4Pumps
• RWusedfornonͲpotable/nonͲcriticaluse
–– nofinalstagefiltrationrequired
• RWnonͲpotableindoorͲ filteredas
safeguardtocolor,sedimentandproper
functionofvalves
• 3.6Piping
• SeparationofpotableandnonͲpotable
wateratalltimes
• Partslistedforpurposeintended
3.6PipingMaterials–– cont.
y WhennonНІpotableRWandpotablewaterin
sameditchseparatedminimumof12””and
potableontopandbelowfreezezone
y RWdistributionpipingsuitablefordomestic
waterapplication
y PlasticpipingprotectedfromUVbyfactoryor
paintedwithcompatiblelatexpaint
Labeling
• Ifappliedtoanybuilding,facilityor
residenceitshallbeasfollows:
– RWfixturesnonͲpotable
““NONͲPOTABLE–– DONOTDRINK””
– NonͲpotablepipingdesignatedbycolored
bandsandsolidcolorpipingasspecifiedby
authoritieshavingjurisdictionand
labeled:““NONͲPOTABLE––RAINWATER””
– Outletsandfixtureseasilyrecognizableby
colororsymbolfornonНІpotablewater
Inspections
• Inspectionofallelementsbeforetheyare
covered(roughНІininspection)
• Finalinspectionincludingtesting
• Testingaccordingtocodeandalso
– Testingandcommissioning
– Piping–– aflowtestthroughsystemtopointof
distributionanddisposal
– A50Ͳpsihydrostatictestassubstitute
• Otherinspectionsasneeded
y Systemmaintenance–– propertyowners
responsibility
y RWSystemshallbemaintainedandin
functioningorder
Еѓ Filtrationanddisinfectionservicedaccording
toMfg.recommendations
Еѓ SystemAbandonment
x Removeordisableallconnectingpipingtoutility
providedwater
x ReplaceRWpipingwithapprovedpotablesupply
piping
x Securecisternfromaccidentalaccess
3.7PotableRainwaterApplications
Еѓ CollectionsurfacealsomadeofnonНІtoxic
material–– OK:
x Paintedsurface–– certifiedpaintfordrinkingwater
contact
x Enameledsteel
x Flatroofs–– coatingNSFProtocolP151
x Vehicularparkingsurfaceprohibited
Ń Notapproved–– wood/cedarshakes,copper
roofing,leadflashing
Ń Notrecommended–– Bitumen/composition
roofing,galvanized,zincНІcoatedmetal
• 3.7.2CisternInlets
– Waterenteringcisternmaintainquietflow
– Pipeenteringcisternshallterminateina
returnbendelbowpointedupward\or
equivalentcalmingdevice
• 3.7.3CisternOutlet–– providedwith
floatinginlettodrawwaterjustbelow
thesurface
– Alternative–– outletlocatedatleast4””
abovebottomofcistern
3.7.4PotableuseCistern
– CertifiedforpotablebyNSForequivalent
– Plastictanks–– virginplasticNSF/ANSI
Standard61approved
– Notdirectlyconnectedtopublic/community
watersystemwithoutapprovedbackНІflow
protection
• Eitherconnectedusingreversepressureprincipal
backflowdevice–– or––
• Airgapperlocalplumbingcodes
– Belowgradecisternsseparatedfromsanitary
wastepiping–– distanceaccordingto
jurisdiction
3.7.5Filtration
• Carbonfiltermayprovidereductionoftaste,
odor,organicchemicals
• Filtrationanddisinfectionafterstoragetank
• Particulatefiltration–– upstreamofdisinfection
• FiltersadequatesizeandNSF/ANSIStandard
53approved
3.7.6Disinfection
• Chlorineokwithautomaticdispenserand
contacttimeandresidualaccordingtolocal
healthauthority
• Ozone–– okifapprovedozonesystemensuring
adequatecontacttime
– ProvisionsmadetooffͲgasozonetosafe
environment
• UltraͲvioletdisinfectionokaftermaximumof
5micronfiltration
3.7.7OperationandMaintenance
• Takesampleafterseveralrainsandtestaccordingto
latestadditionofStandardMethodsforthe
ExaminationofWaterandWastewater(ALPHA)
• PrivateSystem–– priortoplacinginservice,testfor
minimumofE.coli,TotalColiformandheterotrophic
bacteria.Periodotictestingrecommended
• PublicSystem(25differentpersonsover60days)also
testforcryptosporidum;annualteststotalcoliform,E
Coli,Heterotrophicbacteriaandanychemicalof
concern.Keeprecords2years.
UndergroundExteriorCisternforPotableApplication
Potableand/orNonНІPotableWater
PotableandNonНІPotableWaterinteriororWeatherproofLocation
UndergroundExteriorCisternforPotableApplication
Section505
AlternativeWaterSourcesForNonНІPotableApplications
–– NonͲPotableRainwaterCatchmentSystems
2010
GREENPLUMBING&
MECHANICALCODE
SUPPLEMENT
IAPMO НІ THEINTERNATIONAL
ASSOCIATIONOFPLUMBINGAND
MECHANICALOFFICIALS
IAPMO
• GreenPlumbing&MechanicalCode
Supplement
– Forusewithallcodes
• AppliestoResidentialandCommercial
• Section505–– AlternativeWaterSourcesFor
NonНІPotableApplications
– ͲNonͲPotableRainwatercatchmentSystems
505.1AppliestoInstallation,
Construction,Alteration,Repair
• For:
– Waterclosets
– Urinals
– Trapprimersforfloordrains,floorsinks
– Irrigation
– Industrialprocesses
– Waterfeatures
– Coolingtowermakeup
– Otherapproveduses
505.2and3PermitsRequired
• PlumbingPlanSubmission
– CompletePlumbingPlans
– Withappropriatedata
• SystemChanges
– Permitsifrequired
505.4NoDirectConnections
• Nodirectconnectionsto:
– Potablewatersupply
– Alternativewatersource
• MakeupWater
– PotableorReclaimed(recycled)
– UseofAirgap
– Reduced––pressureprincipalbackflowpreventer
– Inaccordancewithplumbingcode
505.5InitialCrossНІConnectionTest
• IfRWinstalledwithinabuilding
– Beforebeingoccupied
– Oractivated
– Inaccordancewithauthorityhavingjurisdiction
505.6Sizing
• Indoorapplication
– Sizedthesameaspotablepiping
– Designedandsizedinaccordancewithplumbing
code:
•
•
•
•
Rainwaterdrains
Gutters
Conductors
leaders
505.7SystemMaterials
• .1.Supply&distributionmaterials:
– Complywithplumbingrequirementsof
potablewatersupplyunlessprovidedfor
• .2Drainagematerials
– Guttersetc.requirementsoftheplumbing
codeforstormdrainage
• .3Storagetanks–– complywith505.9.5.
• .4CollectionsurfaceͲ ofhard,
imperviousmaterial
505.8ColorandMarkingInfo.
• Backgroundandletteringinaccordancewith
plumbingcode
““CAUTION:NONͲPOTABLERAINWATERWATER.
DONOTDRINK””
505.9DesignandInstallation
• .1HoseBibbs–– Ok
– Marking:““CAUTION:NONͲPOTABLEWATER,DO
NOTDRINK””ANDSYMBOL:
– ͲͲͲ
505.9.2Deactivation&Drainagefor
CrossConnectionTest
• RWandpotablewithinabuilding
– Requiredappaturesfordeactivationordrainage
neededforcrossconnectiontesting
505.9.3CollectionSurfaces
• FromRoofsurfaces
• NotFrom:
– Vehicularparkingsurfaces
– Surfacewaterrunoff
– Bodiesofstandingwater
– OverflowsandBleedͲoffpipingfromroofͲ
mountedequipmentandappliances
• Notontoroofwhereraincollected
505.9.4MinimumWaterQuality
• RWmustmeetapplicablestandardssetby
publichealthauthorityhavingjurisdiction
• NotreatmentforsubͲsurfaceornonͲsprinkled
surfaceirrigationwheremaximumstorageis
lessthan360gallons
505.9.5RWStorageTanks
• .1Construction–– solid,durablematerial,
watertight
– Approvedbyauthorityhavingjurisdictionaslong
astheycomplywithapprovedapplicable
standards
• .2Permittedforaboveorbelowground
505.9.5.3AboveGradeTanks
• Opaque
• Approvedforabovegrounduseindirect
sunlightorshieldedfromsun
• Installedinanaccessiblelocation
– Forinspectionandcleaning
– Installedonfoundationorplatformconstructedto
accommodateallloads
• Ͳinaccordancewithbuildingcodes
505.9.5.4BelowGrade
• Structurallydesignedtowithstandearthor
otherloads
• Capableofsupportingearthloadofnotless
than300lbs./sq’’
• Manholes–– minimumof4””abovesurface
gradeandslopedaway
• Ballasted,anchored,securedtoprevent
floating–– meetorexceedbuoyancyforce
505.9.5.5DrainageandOverflow
y Tankmusthavewaytodrain
y Overflow
Еѓ Notequippedwithshutoffvalve
Еѓ Ifdrainingintostormdrainagesystem
x Equippedwithbackflowvalveorotherapproveddevice
y SizeofOverflowOutlet:
Еѓ NotlessthanaggregatecrossНІsectionalareaofall
inflowpipes
505.9.5.6OpeningandAccess
Protection
• .1AnimalandInsects:
– openingsprotectedfromentryof
insects,birds,rodentsintotank
• .2HumanAccess:
– openingsgreaterthan12””securedbylockable
deviceorapprovedmethod.
505.9.5.7markings
• Permanentlymarked:
– Capacity
– ““NONͲPOTABLERAINWATER””
• Atpersonentryopenings:
– ““DANGERͲCONFINEDSPACE’’
505.9.6Pumps
• Mustbelisted
• Deliveraminimumof15psitothe
highest,andmostremoteoutlet(indoor)
• Ifover80psimustbereducedto80psi
• Installedinaccordanceofplumbingcode
505.9.7RoofDrains
• DesignedandInstalledinaccordancewith
plumbingcodes:
– Allroofdrains(primaryandsecondary),
conductorsleaders,gutters,
505.9.8WaterQualityDevicesand
Equipment
505.9.9FreezeProtection
• Installedtomaintainminimalwater
quality
• Listedorlabeledandapprovedfor
intendeduse
• Tankandpipingprotectedadequately
fromfreezing
505.9.10DebrisRemoval
• Systemequippedwithdebrisextruder
• Orotherapprovedmeanstoprevent
accumulationof
– Leaves
– Needles
– Otherdebrisandsediment
• Sizedandinstalledaccordingtomfg.
instructions
• Accessible
505.9.11RequiredFilters
• Forwaterclosets,urinals,trapprimersand
dripirrigation
– 100micronminimum
–505.9.12Gutters
• Guttersmaintainaminimumslopeandsized
accordingtoplumbingcode
505.10Signs
• .1Commercial,Industrial,InstitutionalRestrooms––
visible½””letters:
– ““TOCONSERVEWATER,THEBUILDINGUSES
RAINWATERTOFLUSHTOILETSANDURINALS””
• .2EquipmentRoomscontainingnonͲpotableRW
equipmentlabel:
– ““CAUTIONNONͲPOTABLERAINWATER.DONOT
DRINK.DONOTCONNECTTODRINKINGWATER
SYSTEM.NOTICE:CONTACTBUILDING
MANAGEMENTBEFOREPERFORMINGANYWORK
ONTHISWATERSYSTEM””
505.11InspectionandTesting
• .1accordingtopotableandstormdrainageplumbing
codes
• .2Initialandannualcrossconnectioninspectionand
testingonpotableandRWsystem
– Proceduresoutlined
• .3DiscoveryofCrossͲConnection
• Alternativetestingrequirementsshallbepermitted
byauthorityhavingjurisdiction.
Section707
RainwaterCollectionAndDistributionSystems
2010
INTERNATIONALGREEN
CONSTRUCTIONCODE
THEINTERNATIONALCODECOUNCIL
INTERNATIONALGREENCONSTRUCTIONCODE
(IGCC)
FORCOMMERCIALONLY
707.1Scope
• Construction,installation,alterationsand
repairofRWCollectionandConveyance
systems.
707.2Permits
•
•
•
•
Constructiondocuments
Engineeringcalculations
Diagrams
Otherdatapertainingtothesystem
707.3НІ 6
• BackflowpreventionaccordingtoIPCto
protectpotablewater
• NonPotablewaterconnections–– when
differentsources–– usemoststringent
requirement
• Installation–– followIPC
• Applications–– followIPCandlocalcodes
• .7–– approvedandusedasintendedby
manufacturer
• .8–– vents,overflowandinletsscreened
to1/16””tokeepinsectsandverminout
• .9Ͳ Roofwasherordebrisextrudernot
divertedtosanitarysewerandnotcause
erosion.
• Automaticmeansofselfdraining
• .10–– keepstoragetankandrelated
pipingfromfreezing
• .11–– Trenchingforpiping5’’of
undisturbedearthawayfromsewer
• ServicepipingaccordingtoIPC
• Exceptions:
– iftooclose–– 12””above
– Canbeinsameditchofsewerifpipe
approvedbyIPC
– Sleeved5’’bothwaysatcrossing
– Irrigationpipingdownstreamofbackflow
preventerНІ exempt
707.12Conformtoaccepted
engineeringpractices
12.1abovegroundimperviousroofing
fromapprovedmaterial.
Exception:Vehicleparking/pedestrian
surfacesokexclusivelyforlandscape
irrigation
Nodischargeofoverflow,condensate,
bleedНІoffpipes,appliancesontoroof
• 1.1Potablewaterapplication:
– Woodorcedarshakesprohibited
– Roofingtreatedwithbiocides
– Leadflashingprohibited
– Paintedsurfacesokwherepainthasbeen
certifiedasacceptablefordrinkingwater
contact.Lead,chromiumorzincbasedpaints
prohibited
– FlatroofingproductsmustbeNSFP151
certified
– Notfromvegetatedroofs
12.3DebrisExtruders
• Downspoutsandleadersshallbeconnected
toaroofwasher
• Shallbeequippedwithadebrisextruderor
equivalentdevice
– Removeleaves,sticks,pineneedles,andsimilar
material
– Shallbeselfcleaning
12.3RoofGuttersandDownspouts
• GutterscompatiblewithRWCollection
• Jointssealedagainstleakage
• Ifforpotableuse:
– Constructedofmaterialapprovedfordrinking
water
– Flashingandjoints–– nolead
• 12.3.1Slope–– roofgutters,leaders,
pipingshallslopecontinuouslytoward
collectioninlet
– Freeofleaks
– Gutters/downspoutsslopeofnotlessthan
1/8””/foot
– Shallnotallowpoolingofwateratanypoint
– Exception:Siphonicdrainagesystem
installedcorrectly–– nosloperequired
– 12.3.2GutteranddownspoutssizedbyIPC
andlocalrainfallrates
– 12.3.2Cleanoutsprovidedandalowaccess
toallfilters,flushes,pipesanddownspouts
12.4.1,2,3CollectionPipeMaterial
InsideaBuilding
•
•
•
•
•
Pipingapproved
Ventapproved
Drainstostormwaterapprovedwastepiping
JointsapprovedandsizedbyIPC
Labelingofpipingnotrequiredbeyondthat
requiredforsanitarydrainage,wasteand
ventpipingbyIPC
12.7.1Location
• Storagetanksokaboveorbelowgrade
• Abovegrademustbeprotectedfromdirect
sunlight
• 5footminimalhorizontaldistance––
• Tankapprovedforuse––(woodokwithliner)
12.7.3FoundationandSupport
•
•
•
•
Basecapableofholdingweightwhentankfull
InseismicareainstalledIPCcode
Ifsoilcanbecomesaturatedtankballasted
Belowgroundtanksdesignedtowithstand
earthandsurfaceloadfullorempty
12.7.4makeupWater
• Potableormunicipalappliedreclaimedor
recycledwaterok
• Protectedbyanairgapnotlessthan4””
abovebackflowdevice
• AfullͲopenvalvelocatedonmakeupsupply
line
• Controlledbyfillvalvesorotherautomatic
supplyvalve
12.7.5Overflow
• Overflowpipesameorlargerareaassumof
theareasofalltankinletpipes
• Dischargedasstormwater
• Noshutoffvalve
• Minimumofonecleanoutoneachoverflow
pipeНІ IPC
12.7.6Access
• Atleast1accessopeningwithapproved
lockingdeviceorprotectedfromunapproved
access
• Belowgradetanksmanhole24””minimum
• Manholeatleast4””abovegradeand
gasketedandboltedandlockingdevice
• Tankbelow800g.only8””opening
• 12.7.7Venting–– accordingtoIPC
• 12.7.8Inlets–– waterenterwithminimal
turbulencetoreduceagitatingcontents
• 12.7.9Outlets–– atleast4””abovebottom
andshallnotskimwaterfromsurface
• 12.7.10Drain–– locatedatlowestpointof
tank,watermanaged,1cleanout
• 12.7.11LabelingandSignage
• Eachtanklabeledwithcapacityand
locationofupstreambypassvalve
• Storagetanksignage““CAUTION:NONͲ
POTABLEWATER–– DONOTDRINK””
• Opening–– ““DANGER–– CONFINEDSPACE””
• Wordingminimumof.5””highand
contrastingcolor
12.8Valves
• 8.1–– influencevalvesmustbeprovidedand
divertwaterintostormdrainagetoallow
maintenance
• 8.2Ͳ Backwatervalveshallbeinstalledon
eachoverflowandtankdrainpipe
12.9RoofWasher
• Amountfieldadjustedtodivertaccumulated
debrisfromcollectionsurface
• Notdependentonmanuallyoperatedvalves
• DivertedwaterasstormwatermanagedͲ local
jurisdiction
• Accessibleformaintenanceandservice
12.10VentPiping
• Sizedtoequalallinfluencepiping
• ProtectedfromcontaminantsbyaUͲbend
withopeningdirecteddownwardoran
approvedcap
• Atleast4””abovegrade
• Protectedsovermincannotenter–– not
greaterthan1/16””
12.11PumpingandControlSystem
•
•
•
•
Easilyaccessibleforrepair
Ifpotable–– listedforuse
Pressureappropriate
11.1–– standbypowerforessentialtreatment,
pumpingprovided
• 11.2–– makeͲupwatersystemfittedwith
warningmechanismthatalertsbeforebeing
discharged
• 11.3–– keeppressurebelow80psi
12.12Distributionpipe
– 12.1,2–– materialsandjoints–– conformwith
standards
– 12.3–– sizedaccordingtoIPC
– 12.4–– nonͲpotabledistributionpipecolorpurple
• embossed,ormarked““CAUTION:NONPOTABLEWATER
–– DONOTDRINK””
• OrusepurpleIDtapeorwrapontopandfastened
every10feet,3””wide
• Exception–– outdoorandbelowbackflow
707.13TestsandInspection
• 13.1Ͳ7
– Testdrainageandvents
– watersupply
– backflowprevention
– verminandinsectprotection
– Roofgutter–– 1gallonminimum,noneleft
standing
– roofwasher
13.8StorageTankTests
– Storagetankfilledtooverflowfor24hours
– After24hours–– supplementalwateraddedfor15
minutestoverifyproperdrainageofoverflow
system
– Drainto2””belowmakeupwatertrigger
– 13.9–– pressureatfutherestpointacceptable
– 13.10–– waterqualitytestedͲ verifiedatpointof
useНІaccordingtolocaljurisdiction
707.14OperationandMaintenance
ManualsInclude:
– 14.1operationandmaintenance–– hardcopy
– 14.2detailedschematics–– location,listof
components–– mfg&model#
– 14.3maintenancescheduleandprocedures
• Consumableparts–– notedalongwithpartnumbers
• 14.4systemstartupandshutdownproceduresand
operationprocedures
707.15SystemAbandonment
• 1.Allsystempipingconnectedtoremovedor
disabled
• 2.RWdistributionpipingsystemreplacedwith
approvedpotablepiping
• 3.Storagetanksecuredfromaccidentalaccess
orfilledwithsand
707.16PotableWaterApp.
– 16.1resultsafter2rainfallevents
– 1.1–– accordingtolatesteditionofStandard
MethodsoftheExaminationofWaterand
WastewaterpublishedbyAmericanPublic
HealthAssociation
– 1.1.1testedforE.coli,totalcoliform,
heterotrophicbacteriaandcryptosporidium
– 16.2testedbeforebeingconnectedtopotable
RWdistributionsystem
– Annuallythereafter.Testsretainedminimum
of2years
Cisterns
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