jta enrich lives through e#fec~iv~ and caring ~ervi~e...a color-coded map showing the quick...

'JTa Enrich Lives Through E#fec~iv~ and Caring ~ervi~e"

G;~.IL FARBERy Dire~tt~r

~~pt~Crlbe~ 7, 2~ 1 ~

~3t)t~ SaUT~~ ~'REMQi~~` A~r~Nt~EAI.3~f1MHR,A, Cr~►L,tFC3RNIA 91~~t~3-i:i~l

T~teph~ne: (5?h) ~S~-~1C1()~3~~p:r'/t~ja~Jv.~aCnllflt~'.~~3V

,~UDRESS AI1I_ ~C:O~tRESPC~NI3EI~C'E Tt7:

ELI-~:~I'~BR~., CALIrORNi~►.91~(l~?-14F~f)

tN REPl~Y PLEASE

R~~ER Tt~ F1LE- ~ '1

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~~ten~ion Ms. Claudia ~aldana

Dear M~~ ~~its

~{~N~~L1~~►TEf~ S~~1f ER 1'IIIA~ NTENAN~E ~15TR~CT~t~~~~T`~~~ a~SE~~~IE[UT PROGRAM REpt~RT — ~1TY C~~ ~3RAD~BUR1~~~is later is t~ in#term ~r~u that tie ~aut~#y ~f ~.~~ ~~g~le~ De~~r~r~e~t ~f F'ubli~ t111~~rk~Gonsolidat~d ewer Mair~tenanc~ D~~tri~t ~~~ c~r~~ eted 2~ ~~~~r ~~n~i~i~nAs~essmen~ Pr~~r~m ~f the ~~ty ~fi 8ra~~~r~r's ~ev~~r syst~r~.The ~ncl~os~d Gonditian Assessment R~~or~ pravi~~s det~.i~~ r~~~~~in~ t~~ r~a~nterranceend stru~tur~.~ c~r~d~tio~ of your Cit~r's sev~e~ mainlines. ~'h~s information should beinclined ire your ag~r~cy's Sever ~y~ter~ I~ar~a~~mer~t ~[~.r~ as ~ r~~f~r~r~c~ in Cha~t~~ 8,~yst~rn Ev~lua~~~r~ ~.nd Cap►~.ci~~ As~ur~n~~ flan. T~~ s~gm~nt~ vvi~h c~~ti~a~r~aint~r~ar~ce issues h~rre been ~l~~ned arid, ~rhere ap~ropri~t~, ~r~corpora~~d into our~n~anced m~.int~nan~~ cl~~n~n~ sched~~e #ar contir~u~d mo~it~r~ng. In ~~di~i~n, the~egmer~t~ ~ri~~ severs structural defects h~.ve ~it~~r been r~~~i~~d or v~~l~ ~e s~hedu~~ec~f~~ r~~~.ir or r~~lacerr~~~t ~s park of our or~~t~ir~g Ac~umu~~tive capita! t~utlay I~r~ ec~.~ # you h~.v~ any qu~~tiar~~ reg~.rding this r~p~rt ~r the ~a~di~io~ As~essr~~r~~ ~ro~r~m,~i~ase ~~nt~~t M r. Robert Sv~rart~~ ~~~~r ~lair~t~nanc~ Div~~~~n, ~.t ~~~~} ~~~-~~7I1~~~n~~y fhrou~~ Fr~d~y} 8 a,m. to ~- p.m., or rsar~z dpv~r.la~~ur~ty.~~v.Very ~ru1y y~ur~,

~A~L BARBERair~~tor t~fi F~u~l~ ~f~rks

WILLIAM J. ~1~~1TEF~Assi~~~nt D~~u#~ ~~re~t~r~~~~r Mair~ten~,nce Dir~i~ian

~l :IbH:iSMHC~ME~L.BC~BADCLLA~201£~L~-CT~R~ & MEMC}St~s3.DC~CX

~~1~.bc: F~ro~rarns Q~velopment {Y~ng}, RS, FILE ~Proiect Y~TV~11 ~ 28}, SPINDLE

CONDITION ASSESSMENT REPORTCOUNTY OF LOS ANGELES DEPARTMENT OF PUBLIC WORKS

CONSOLIDATED SEWER MAINTENANCE DISTRICT

PROJECT NAME: YOTV1112B PROJECT MGR: Hanna KebedePROJECT DATE: 10/03/13 CONTACT NO: (626} 300-4686SUP. DISTRICT(s}: 5 MAP PAGE(S): 2122, 2166Report By: Clement Khong Report Date: 08/29/16

INTRODUCTION

As part of the Sewer Condition Assessment Program, the County of Los AngelesDepa~trr~ent of Public Works Consolidated Sewer Maintenance District (District)has completed the condition assessment of 5,855 feet or 54.7 percent of theCity of Bradbury's (City) sewer system.

The enclosed Condition Assessment Report outlines the structural and maintenanceratings of your system based on the Pipeline Assessment and Certification Program's(PACP Version 6.0.1) rating methodology. Included in the report are the following:

• Project Overview Map (Enclosure 1}

• Quick Maintenance Rating Map, High Water Levels List and Map, andSample Lateral Notice Letter (Enclosure 2)

• Quick Structural Rating Report Priority List, Quick Structural Rating Map, andLining and Point Repair Projects Map (Enclosure 3)

The District previously transmitted a Condition Assessment Report of the balance ofyour City's sewer system on February 2, 2009. A copy of this report can also be foundon the District's website at http://dpw.lacounty.gov/smd/ccty/city/. The combination ofthe two reports provade a complete assessr~ent of the City's entire sewer system.

The Sewer Condition Assessment Program utilizes the PACP Quick Ratingmethodology to rank the structural and maintenance condition of your system based onindustry standards.

PROJECT AREA AND DESCRIPTION

Project No. YOTV11126 included sewer lines located in the unincorporated County ofLos Angeles and the Cities of Bradbury, Duarte, Industry, La Canada Flintridge,Temple City, and San Dimas. Enclosed for your reference is an overview map of theproject area within your City (Enclosure 1}.

Page 1 of 4

DEFECT GRADE DESCRIPTION

The Quick Rating indicates the number of occurrences for the highest severity grade foreach pipe segment for either maintenance or structural defects. A grade of 1 indicatesthat a pipe segment is in excellent condition with minor defects while a grade ofi5 indicates that a pipe segment may require immediate attention. A legend of the fivepossible defect grades is as follows:

Grade Defect Grade Description

1: MINOR

2: t1tIINOR TO N'~tjDERATE

~ ~

4; SICNIF~~A~1T

5: MOST SIGNIFICANT

MAINTENANCE REPORT

Our inspection revealed that approximately 56 percent of the system televised was freeof blockages or restrictions that would impede sewer flows. However, the remaining44 percent of the pipe segments within the City had a PACP maintenance grade of 3, 4,or 5 as indicated in the Quick Maintenance Rating Table shown below. Thesesegments have been incorporated into our enhanced cleaning schedule with correctiveaction taken.

A color-coded map showing the quick maintenance rating for each pipe segment isprovided in Enclosure 2.

QUICK MAINTENANCE RATING TABLE

DEFECT P~~E PERCENT OFLENGTH TOTAL INSPE ~O. OFGRADE CTED

FT PIPE LENGTH SEGMENTS}

1 ~ Mir~~r 3,045 52 132: Minor to Moderate 234 4 13; ~~~~~'~~ 937 16 44: ~igni~c~nt 1,405 24 65: /lost Si~~ific~nt 234 4 1

TOTAL 5,855 100 25

Page 2 of 4

Lateral Notices

Also included in the maintenance inspection reports are private lateral deficienciesdiscovered during the assessment of the mainline. The District does not maintainlateral lines. It is the responsibility of the property owner to maintain their respectivelateral lines to facilitate the flow of wastewater from their property to the mainline.Letters have been sent to property owners in your City notifying them of themaintenance issues detected in their laterals. A sample lateral notice letter is providedin Enclosure 2 for your reference.

high Water Levels

CJur inspection revealed that one segment exhibited visual signs associated with highwater levels due to a sag in the line. The capacity of the sewer pipe can be determinedby analyzing severe! PACP codes, including Water Level, Water Mark, andmiscellaneous remarks, which indicate the camera was underwater or there were sagsin the line. A sewer pipe is considered at capacity when 50 percent of the diameter ofthe sewer pipe is full of water. However, there are conditions in which the Water Levelor Water Mark reaches 50 percent or greater due to heavy flows in adjoining pipes, atemporary stoppage caused by debris in the sewer line, or a sag in the line.Therefore, additional review of this pipe segment was conducted to determine if anycapacity issues exist.

All sewer pipes where the Water Level, Water Mark, and miscellaneous remarks ofcamera underwater or sags in the line are at or above 50 percent capacity have beenlisted and analyzed on the High Water Level Table in Enc{osure 2. The nature of thesehigh water level conditions is also summarized on this table.

A map showing the sewer line with high water level is provided in Enclosure 2.

Infiltration

Our inspection revealed that infiltratian was not detected in any pipe segments in yourCity's system .

STRUCTURAL REPORT

Our inspection revealed that approximately 84 percent of the inspected pipe segmentswithin the City were free of severe structure{ defects. However, the remaining16 percent of the inspected pipe segments had a PACP structural grade of 4 and 5 asindicated in the Quick Structural Rating Table shown on page 4. These segments havebeen placed on a priority list based on the severity and need for action.For items 1 through 4 in the Quick Structural Rating Report Priority List (Enclosure 3),which require a corrective action, the proposed repair or replacement will be scheduledin the next 24 months as part of the ongoing Accumulative capital Outlay Project.

Page 3 of 4

A color-coded map showing the Quick Structural Rating for each pipe segment islocated in Enclosure 3. A map showing the sewer tines, which need lining and pointrepairs, is also provided in Enclosure 3.

QUICK STRUCTURAL RATING TABLE

PIPE PERCENT OFDEFECT NO. OFLENGTH TOTAL INSPECTEDGRADE SEGMENTS(FT) PIPE LENGTH1: Minor 3,981 68 172: Minor to Moderate 0 0 0

l~~~'~t 937 16 44: significant 234 4 15: Most Significant 703 12 3

TOTAL 5,855 100 ~~ 25

CONDITION ASSESSMENT PROJECTS

The Sewer Condition Assessment Program performed the condition assessment of thesewer lines within the City according to the following schedule:

FISCAL PROJECT LENGTH PERCENTAGES TAT U SYEAR NAM

E(FT) O F SYSTE M

2005-06 YOTV0506D 4,843 45.3 COMPLETED2011-12 YOTV1112B 5,855 54.7 COMPLETEDTOTAL 1 .': 100.0

Page 4 of 4

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CCTV PROJECT AREA

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This map is intended only for internal operations of the Los Angeles County Sewer Maintenance Districts. Los Angles County expressly disclaims any liabilityfor any inaccuracies which may be present in thismap. Data contained in this map is produced in whole or part from the Thomas Bros. Maps® digital database. This map is copyrighted, and reproducedwith permission granted, by Thomas Bros. Maps®.All rights reserved.

O

BRADBURY

OVERVIEW MAP

CITY OF

CCTV PROJECT

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ENCLOSURE 1

SMD Sanitary SewersSMD Sanitary Sewers

ENCLOSURE 2

• Quick Maintenance Rating Map• High Water Levels List and Map• Sample Lateral Notice Letter

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CITY OFBRADBURY

ENCLOSURE 2 CCTV PROJECTY0TV1112B

QUICK MAINTENANCERATING(QMR)

ENCLOSURE2HIGH WATER LEVELS

CITY OF BRADBURY (YOTV1112B)

ITEM NO. QMR START MH END MH STREET OBSERVATION SAG (ft)

1 4200 2212-0528 2212-0529 MOUNT VIEW DR High water level (sag) 6

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*****

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DR

*****

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*****

*****

*****

*****

*****

*****

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OM LN

*****

*****

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BOUR

NE AV

GARDI ST

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O DR

*****

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*****

UP RR

FAIRLE

E AV

GARDI ST

MAYNARD DR

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*****

BUSINESS CENTER DR

MARKWOOD ST

E-2212 E-2255E-2166

E-2213

E-2211

E-2256E-2167

E-2254

LegendHIGH WATER LEVEL






September 2016

0 360 720 1,080 1,440Feet


CITY OFBRADBURY

O

CCTV PROJECTY0TV1112B

HIGH WATER LEVEL

ENCLOSURE 2

COUNTY OF LOS ANGELES

DEPARTMENT OF PUBLIC WORKS

“To Enrich Lives Through Effective and Caring Service”

900 SOUTH FREMONT AVENUE

ALHAMBRA, CALIFORNIA 91803-1331

Telephone: (626) 458-5100

http://dpw.lacounty.gov

(DATE)

GAIL FARBER, Director

ADDRESS ALL CORRESPONDENCE TO:

P.O. BOX 1460

ALHAMBRA, CALIFORNIA 91802-1460

IN REPLY PLEASE

REFER TO FILE: SM-1

Mr./Ms. (NAME) (ADDRESS) Dear Ms. (LAST NAME): SEWER LATERAL ROOT INTRUSION The County of Los Angeles Consolidated Sewer Maintenance District is responsible for the maintenance of the sanitary sewer system in your area. We recently televised the sewer mainline and discovered roots in your sewer lateral connection. The intrusion of the roots from your lateral may block the flow of sewage in the mainline sewer causing an overflow upstream of your property. You are hereby requested to perform maintenance on the private sewer lateral serving the property located at 4474 El Prieto Road, Altadena, California 91001. In accordance with County Code 20.24.080 Maintenance of Sewer Laterals. "All house laterals, industrial connection sewers, septic tank outlet connections to STEP system, and appurtenances thereto existing as of January 23, 1953, or thereafter constructed, shall be maintained by the owner of the property served in a safe and sanitary condition, and all devices or safeguards which are required by this Division 2 for the operation thereof shall be maintained in good working order." As the property owner, you are responsible for the entire length of the sewer lateral, which includes the portion that extends beyond the property line into the public right of way. We request that you contact a licensed plumber to service your sewer lateral within 90 days to remove roots and any other obstructions that may cause a sewage backup.

Your licensed plumber is required to protect the District's sewer mainlines from dislodged roots and other debris by utilizing catcher baskets at the manhole downstream from your lateral connection. Prior to your plumber cleaning your lateral, please notify the District's sewer maintenance yard in your area at (626) 446-5227 to arrange for authorization to access the downstream manhole. We have enclosed photos of your lateral connection showing the root blockage. In addition, we have included literature on ways to minimize sewer overflows and damage to your home. Please consider establishing a routine cleaning schedule for your sewer lateral to minimize potential plumbing problems caused by root intrusion that are likely to reoccur. If your sewer lateral has been cleaned after the date on the enclosed photos, no further action is necessary. After your lateral has been serviced, please notify Mr. Fernando Villaluna, Sewer Maintenance Division, at (626) 300-3380 or [email protected]. Thank you for helping keep the sewer lines clean and in good working order. Very truly yours, GAIL FARBER Director of Public Works WILLIAM J. WINTER Assistant Deputy Director Sewer Maintenance Division XXXXX

Enc. bc: RS, FV, File (Lateral Notice), SPINDLE

mailto:[email protected]

XXXXX

Roots at Lateral Connection

Minimizing Sewer Overflows and Damage to Your Home The sewer system within the County of Los Angeles Consolidated Sewer Maintenance District (District) is comprised of a series of underground pipes. Many are publicly owned; however, the sewer laterals are entirely owned by the private property owner they serve. The laterals extend from the building to the mainline within the street (or within an easement at the rear of your home). The laterals are typically four inches in diameter while the District's mainline is typically at least eight inches in diameter. The private property owner is responsible for the entire length of the lateral, which includes the portion that may be located within the public right of way (under the asphalt and street landscaping).

Sewer backups can cause tremendous damage to the interior of a home. In order to minimize these, the District provides continual maintenance services for the public sewer mainlines. Unfortunately, sewer laterals are often not maintained by private property owners until a disaster strikes. "Out of sight, out of mind" is a typical approach to sewer lateral maintenance and operation by many. It is our hope that we can provide you various means of addressing these issues and thus, minimize your risk of an overflow entering your home. The three methods we suggest are:

1. Maintain your lateral through proper cleaning, repair, and replacement. 2. Do not place improper items into the sewer or make improper connections to the

sewer. a. Keep rainwater out of the sewer lines as it overwhelms the capacity of the

sewer lines and may cause sewer spills. b. Do not pour fats, oils, and grease in your drains as these products harden

and stick to the inside of the sewer pipes, which build up and may eventually cause a blockage in the sewer pipe.

3. Install a backflow preventer and cleanout in your sewer lateral.

SEWER LATERALS – AREAS OF RESPONSIBILITY

Homeowner is responsible for lateral maintenance up to the sewer

mainline.

OR

Sewer Easement

Property Boundary

Sewer Lateral Sewer Lateral Homeowner's Responsibility Homeowner's Responsibility

District's Responsibility District's Responsibility

Foot Path Foot Path Street

Sewer Mainline Sewer Mainline

ENCLOSURE 3

• Quick Structural Rating Report Priority List• Quick Structural Rating Map• Lining and Point Repair Projects Map

ENCLOSURE3

QUICK STRUCTURAL RATING REPORT PRIORITY LIST

CITY OF BRADBURY (YOTV1112B)

ITEM NO. QSR START MH END MH STREET OBSERVATION: LOCATION PROPOSED CORRECTIVE METHOD LENGTH OF REPAIR (FT)

1 5143 2212-0541 2212-0540 GARDI ST Fractures: 25'; 269', 333' Lining: MH to MH 340

2 5134 2212-0544 2212-0543 SPRINGPOINT DR Broken: 26' Structural integrity in tact. No action needed.

3 5132 2212-0230 2212-0231 EASEMENT Cracks: multiple locations Structural integrity in tact. No action needed.

4 4100 2212-0528 2212-0529 MOUNT VIEW DR Fractures: 35' Lining: MH to MH 253

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E-2255

E-2256

E-2254

LegendSMD Sanitary Sewers QSR

1: MINOR2: MINOR TO MODERATE3: MODERATE4: SIGNIFICANT5: MOST SIGNIFICANT






September 2016

0 350 700 1,050 1,400Feet


O

CITY OFBRADBURY

CCTV PROJECTY0TV1112BENCLOSURE 3

QUICK STRUCTURALRATING(QSR)

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E-2212

E-2213

E-2211

E-2255

E-2256E-2167

LegendLining MH to MH






September 2016

0 340 680 1,020 1,360Feet


CITY OFBRADBURY

O

CCTV PROJECTY0TV1112BENCLOSURE 3

LINING & POINT REPAIRPROJECTS

1112B bradbury docs1112B bradbury report maps1112B Bradbury1112B BRD Lining and Point Repair1112B BRD Overview Map1112B BRD QSR Map for Bradbury

jta enrich lives through e#fec~iv~ and caring ~ervi~e...a color-coded map showing the quick...

Documents