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Lateral CreativityLateral Creativity
Patrick McNelly, Principal Staff AnalystOrange County Sanitation District (OCSD)Fountain Valley, CASCAP “Collection Systems in Motion” Workshop
Patrick McNelly, Principal Staff AnalystOrange County Sanitation District (OCSD)Fountain Valley, CASCAP “Collection Systems in Motion” Workshop
What arePrivate Sewer
Laterals?
What arePrivate Sewer
Laterals?
Different Definitions?Different Definitions?
uMain Sewer
uSide Sewer
uBuilding Sewer
u Lateral Sewer
uHouse Sewer
uMain Sewer
uSide Sewer
uBuilding Sewer
u Lateral Sewer
uHouse Sewer
What Do You Call it?What Do You Call it?
uUpper Lateralu Lower LateraluRight-of-way
LateraluEncroachment
Lateral
uUpper Lateralu Lower LateraluRight-of-way
LateraluEncroachment
Lateral
uEasementLateral
uShared Lateral
uSide Sewer
uBuilding Sewer
uEasementLateral
uShared Lateral
uSide Sewer
uBuilding Sewer
Sewer System OverviewSewer System Overview
RegionalTrunkline
Sewer
RegionalTrunkline
Sewer
Cleanout
CleanoutTrapGrease
Trap
Downspout
RESIDENCERESIDENCE
BUSINESSBUSINESS
Manhole
Manhole
Local MainSewer LineLocal MainSewer Line
PrivateServiceLaterals
PrivateServiceLaterals
WastewaterTreatment
Plant
WastewaterTreatment
Plant
Typical Private LateralTypical Private Lateral
HOUSE,APARTMENTOR COMMERCIALBUILDING
DRAIN FROM BATHTUB,SHOWER, SINK, ETC.(MAY BE SEVERAL EXISTINGUNDER BUILDING)
PRIVATE SIDE
BULDINGCLEANOUT
SIDEWALK
SANITARY SEWER LATERAL
CURB
STACK
SERVICE TEE-WYE
PROPERTYLINECLEANOUT
PRIVATE SANITARYSEWER LATERAL
MAINLINESANITARYSEWER
PROPERTYLINERIGHT OF WAY
OR EASEMENT(PUBLIC SIDE)
Sewer Lateral ProblemsSewer Lateral Problems
HOUSE,APARTMENTOR COMMERCIALBUILDING
DRAIN FROM BATHTUB,SHOWER, SINK, ETC.(MAY BE SEVERAL EXISTINGUNDER BUILDING)
PRIVATE SIDE
SIDEWALK
SANITARY SEWER LATERAL
CURB
STACK
SERVICE TEE-WYE
PROPERTYLINECLEANOUT
PRIVATE SANITARYSEWER LATERAL
MAINLINESANITARYSEWER
PROPERTYLINERIGHT OF WAY
OR EASEMENT(PUBLIC SIDE)
BUILDINGCLEANOUT
ROOF DRAINCONNECTION
MISSINGCLEANOUTCAP
ROOTPENETRATION
SEPARATEDJOINTS
BREAKS, CRACKS,HOLES
BROKEN OR DEFECTIVECLEANOUT
BREAKS, CRACKS,HOLES
Typical Lateral ConnectionTypical Lateral Connection
Typical Causes ofI/I Problems
Typical Causes ofI/I Problems
I/I IssuesI/I IssuesuHow do I
inspect?uQuantifying
problems?uHow to
communicate?uCapacity
issues?
uHow do Iinspect?
uQuantifyingproblems?
uHow tocommunicate?
uCapacityissues?
u Effect on peak flows
u Dirt pipes
u Fix the problem, notthe blame
u No programs
u No record keeping
u Effect on peak flows
u Dirt pipes
u Fix the problem, notthe blame
u No programs
u No record keeping
Maintenance IssuesMaintenance Issuesu No plumbing
access -Where’s mycleanout?
u Reactivemaintenance only
u Roots, Roots,Roots
u Broken joints
u No plumbingaccess -Where’s mycleanout?
u Reactivemaintenance only
u Roots, Roots,Roots
u Broken joints
u The drain is not adump
u Orangeburg pipe
u Broken connections
u No accountability
u No record keeping
u The drain is not adump
u Orangeburg pipe
u Broken connections
u No accountability
u No record keeping
Construction StandardsConstruction Standardsu Bedding – Failure at installation?
u Cleanouts?
u Acceptable pipe materials?
u Acceptable rehab methods?
u Sliplining not approved?
u Testing and inspection?
u New/Repairs/Rehabs/Replacement?
u Bedding – Failure at installation?
u Cleanouts?
u Acceptable pipe materials?
u Acceptable rehab methods?
u Sliplining not approved?
u Testing and inspection?
u New/Repairs/Rehabs/Replacement?
Ownership – Collection System?Ownership – Collection System?
uUpper/lower and connection to mainu Lower and connection to mainuConnection to main onlyuWe don’t own any part of the lateral
uUpper/lower and connection to mainu Lower and connection to mainuConnection to main onlyuWe don’t own any part of the lateral
Ownership – Property Owner?Ownership – Property Owner?
uUpper lateral onlyuUpper and lower lateral, and
connection to main
uUpper lateral onlyuUpper and lower lateral, and
connection to main
Ownership – Undetermined?Ownership – Undetermined?
u Laterals in right-of-way, easement, orencroachment (It’s not my lateral!)
uPrivately owned satellite systemsuMobile home parksuSenior citizen communitiesuOther
u Laterals in right-of-way, easement, orencroachment (It’s not my lateral!)
uPrivately owned satellite systemsuMobile home parksuSenior citizen communitiesuOther
Discussion TopicsDiscussion Topicsu Private ownership of laterals from the
building to the sewer main
u Residents unaware of policies or problems
u City record keeping is incomplete,unavailable (where’s my lateral)?
u Many laterals reaching end of design life
u Most sewer fees only cover local sewersystem O&M, not private lateral repairs
u Private ownership of laterals from thebuilding to the sewer main
u Residents unaware of policies or problems
u City record keeping is incomplete,unavailable (where’s my lateral)?
u Many laterals reaching end of design life
u Most sewer fees only cover local sewersystem O&M, not private lateral repairs
What’s Being Done?What’s Being Done?u Lateral insurance programs
u Sewer fees fund repairs
u City lateral maintenance programs toremove roots from city trees
u Mandatory replacement/rehab during majorremodeling
u Rethinking the issue of private vs. publicownership
u Lateral insurance programs
u Sewer fees fund repairs
u City lateral maintenance programs toremove roots from city trees
u Mandatory replacement/rehab during majorremodeling
u Rethinking the issue of private vs. publicownership
The “Rest of the Story”The “Rest of the Story”u Some Orangeburg pipe still in the ground
u Mortar joints failing in old VCP
u Lateral inspection not required at time of sale
u Status of I/I problem undocumented
u Incentives lacking for cities to assist residentsin lateral repair
u “Orphan child” of collection systems
u Some Orangeburg pipe still in the ground
u Mortar joints failing in old VCP
u Lateral inspection not required at time of sale
u Status of I/I problem undocumented
u Incentives lacking for cities to assist residentsin lateral repair
u “Orphan child” of collection systems
Some Final CommentsSome Final Commentsu Should regional agencies assist in private
lateral repair programs?u It’s not just an engineering problemu Will fixing the “lower lateral” fix the
I/I problem?u Residents ask, “Why should I have to
pay for a problem under the city street?”u Where’s my property line?
u Should regional agencies assist in privatelateral repair programs?
u It’s not just an engineering problemu Will fixing the “lower lateral” fix the
I/I problem?u Residents ask, “Why should I have to
pay for a problem under the city street?”u Where’s my property line?
A Sign of Our TimesA Sign of Our Times
The Final Solution?The Final Solution?
Questions?Questions?
Orange County Sanitation Districtwww.ocsd.comOrange County Sanitation DistrictOrange County Sanitation Districtwww.ocsd.comwww.ocsd.com
Patrick McNellyPrincipal Staff AnalystCollections Facilities O&M and Services(714) [email protected]
Patrick McNellyPrincipal Staff AnalystCollections Facilities O&M and Services(714) [email protected]