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CVUHSD – LHS Additional Property Pipeline Safety Hazard Assessment

SCS Tracer Environmental Title Page

Revision 0: May 21, 2012

PIPELINE SAFETY HAZARD ASSESSMENT

OF THE

CENTINELA VALLEY UNION HIGH SCHOOL DISTRICT

LAWNDALE HIGH SCHOOL

NORTHEASTERN CAMPUS PEDESTRIAN &

TRAFFIC SAFETY PROJECT

Prepared By:

SCS TRACER ENVIRONMENTAL 970 Los Vallecitos Boulevard, Suite 100

San Marcos, California 92069

(760) 744-9611

www.scsengineers.com

Project No. 01211298.01

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SCS Tracer Environmental i Table of Contents

TABLE OF CONTENTS

SECTION PAGE

1.0 INTRODUCTION.......................................................................................................... 1-1

2.0 SITE DESCRIPTION .................................................................................................... 2-1

3.0 RISK ANALYSIS........................................................................................................... 3-1

3.1 REGULATORY REQUIREMENTS................................................................... 3-1

3.2 METHODOLOGY .............................................................................................. 3-1

3.2.1 High Pressure Hazardous Substance Pipelines ........................................ 3-1

3.2.2 High Volume Water Pipelines ................................................................. 3-2

3.3 PIPELINES WITHIN 1,500 FEET OF PROPOSED SITE ................................. 3-3

3.4 RISK ANALYSIS RESULTS ............................................................................. 3-4

3.4.1 High Pressure Hazardous Substance Pipelines ........................................ 3-4

3.4.2 High Volume Water Pipelines ................................................................. 3-4

4.0 MITIGATIONS.............................................................................................................. 4-1

4.1 HIGH PRESSURE HAZARDOUS SUBSTANCE PIPELINES ........................ 4-1

4.2 HIGH VOLUME WATER PIPELINES .............................................................. 4-1

5.0 CONCLUSIONS ............................................................................................................ 5-1

REFERENCES ...........................................................................................................................R-1

APPENDICES

A STANDARD REPORTING FORMS ................................................................. A-1

B RISK CALCULATIONS .....................................................................................B-1

C SITE MAPS .........................................................................................................C-1

D PIPELINE MAPS ............................................................................................... D-1

E WIND ROSE ....................................................................................................... E-1

F DATA COLLECTION ........................................................................................ F-1

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SCS Tracer Environmental ii List of Figures

LIST OF FIGURES

FIGURE PAGE

2-1 Region within 1,500 Feet of Site ..................................................................................... 2-2

2-2 Site Location .................................................................................................................... 2-3

C-1 Land Title Survey ............................................................................................................C-1

C-2 Existing Conditions ..........................................................................................................C-2

C-3 Conceptual Site Design without Additional Property ......................................................C-3

C-4 Existing Bike Enclosure Design ......................................................................................C-4

C-5 Conceptual Site Design with Additional Property ...........................................................C-5

D-1 Mapped Pipelines within 1,500 Feet (Excluding ExxonMobil) ..................................... D-1

D-2 ExxonMobil Mapped Pipelines....................................................................................... D-2

E-1 Lennox Wind Rose .......................................................................................................... E-1

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SCS Tracer Environmental iii List of Tables

LIST OF TABLES

TABLE PAGE

2-1 Site Information ............................................................................................................... 2-1

3-1 High Pressure Hazardous Substance Pipelines and High Volume Water Lines within

1,500 Feet of Proposed Site ............................................................................................. 3-3

3-2 High Pressure Hazardous Substance Pipeline Risks ........................................................ 3-4

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SCS Tracer Environmental 1-1 Introduction

1.0 INTRODUCTION

This Pipeline Safety Hazard Assessment (PSHA) has been prepared for the Centinela Valley

Union High School District (CVUHSD) Lawndale High School Northeastern Campus Pedestrian

& Traffic Safety Project. Lawndale High School is located at 14901 S. Inglewood Avenue in

Lawndale, California. The existing school is proposing to acquire the adjacent southern portion

of parcel APN 4149-001-145 (Additional Property) which is approximately 25 feet by 418 feet in

size.

The purpose of this PSHA is to estimate the safety risk from pipelines near the Additional

Property pursuant to California Code of Regulations, Title 5 Education, Division 1 California

Department of Education, Chapter 13 School Facilities and Equipment, Subchapter 1 School

Housing, Article 2 School Sites, Section 14010 Standards for School Site Selection, Subsection

(h):

5 CCR §14010(h): The site shall not be located near an above-ground water or fuel

storage tank or within 1500 feet of the easement of an above ground or underground

pipeline that can pose a safety hazard as determined by a risk analysis study, conducted

by a competent professional, which may include certification from a local public utility

commission.

This PSHA has been prepared using the California Department of Education (CDE) Guidance

Protocol for School Site Pipeline Risk Analysis [1]

. Section 2 describes the proposed site while

Section 3 describes the risk analysis conducted. Section 4 discusses any mitigation required to

meet the CDE’s safety risk approval criteria while Section 5 presents the conclusions. Finally,

the appendices provide the supporting documentation.

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SCS Tracer Environmental 2-1 Site Description

2.0 SITE DESCRIPTION

Table 2-1 provides a summary of the site which is adjacent to the existing Lawndale High

School. See Figures 2-1 and 2-2 for the site location and the region within 1,500 feet. See

Appendix C for additional site maps. Note, Table 2-1 also lists the various school operations that

are co-located/adjacent to Lawndale High School.

TABLE 2-1 Site Information

Item Comments

Local Educational Agency (LEA) Centinela Valley Union High School District (CVUHSD)

Name and Description of Site The Additional Property (~ 25 feet x 418 feet) is located at 14701 S. Inglewood

Avenue in Hawthorne, California. The site is a former railroad right of way

that is the southern portion of APN 4149-001-145. The surrounding area is

urban and relatively flat.

Adjacent School Operations Lawndale High School

14901 S. Inglewood Avenue

Lawndale, CA 90260

Centinela Valley Union High School District

14901 S. Inglewood Avenue

Lawndale, CA 90260

R.K. Lloyde Continuation High School

4951 Marine Avenue

Lawndale, CA 90260

Centinela Valley Independent Study School

4951 Marine Avenue

Lawndale, CA 90260

Centinela Valley Adult School

4953 Marine Avenue

Lawndale, CA 90260

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FIGURE 2-1 Region within 1,500 Feet of Site [2]

Scale (ft)

0 1,406

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FIGURE 2-2 Site Location [2]

Scale (ft)

0 360

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SCS Tracer Environmental 3-1 Risk Analysis

3.0 RISK ANALYSIS

3.1 REGULATORY REQUIREMENTS

The State of California requires that the proposed site meet the following criteria for approval:

Ed. Code §17213(a)(3). A site that contains one or more pipelines, situated underground

or aboveground, that carries hazardous substances, extremely hazardous substances, or

hazardous wastes, unless the pipeline is a natural gas line that is used only to supply

natural gas to that school or neighborhood.

5 CCR §14010(h). The site shall not be located near an above-ground water or fuel

storage tank or within 1500 feet of the easement of an above ground or underground

pipeline that can pose a safety hazard as determined by a risk analysis study, conducted

by a competent professional, which may include certification from a local public utility

commission.

The purpose of this PSHA is to address these regulations (except for any nearby above-ground

water or fuel storage tanks which have been addressed under separate cover).

3.2 METHODOLOGY [1]

This PSHA has been prepared using the California Department of Education (CDE) Guidance

Protocol for School Site Pipeline Risk Analysis [1]

. The CDE protocol is limited to:

high pressure hazardous substance pipelines operating at a pressure of at least 80 pounds

per square inch gage (psig) such as petroleum, petroleum product, natural gas lines; and

high volume water lines at least 12” in diameter (regardless of pressure).

3.2.1 High Pressure Hazardous Substance Pipelines [1]

The Individual Risk (IR) for a specified pipeline hazard is the probability of fatality for an

individual exposed to the physical impact of that hazard, for a specified location, within a

specified span of time. Individual exposure depends on the hazard impact distance and the

distance between the hazard source and the individual receptor location. For an individual at a

specified location subject to a hazard source, the IR is generally defined by the following

equation (CCPS 1989):

IR(i,X) = PC(i,X) x PF(i,X) (Eqn. 1)

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where:

IR(i,x) = the individual risk at a defined location, i, for a defined hazard, X

PC(i,X) = the probability for an individual’s exposure to hazard X’s impact at location, i

PF(i,X) = the probability of fatality, at location i, from the impact of hazard X

The CDE Protocol considers six distinct types of release hazards:

1. leak jet (or pool for liquids) fire (LJF)

2. rupture jet (or pool) fire (RJF)

3. leak flash fire (LFF)

4. rupture flash fire (RFF)

5. leak explosion (LEX)

6. rupture explosion (REX)

The IR for all hazards from a single pipeline is then calculated as follows:

IR = IR(LJF) + IR(RJF) + IR(LFF) + IR(RFF) + IR(LEX) + IR(REX) (Eqn. 2)

The total IR (TIR) was conservatively estimated to the sum of the risk from all pipelines within

1,500 feet. The TIR was then compared to the CDE’s Individual Risk Criterion (IRC) of one

chance in a million to determine if any mitigation measures were required to lower the potential

risk at the site.

Some of the simplifying assumptions used in the CDE Protocol include:

All hazards originate at a point location along the pipeline segment of concern, within

their respective XSEGs (segment length for which a hazard X can impact a receptor);

The wind distribution is uniform;

A single wind speed and atmospheric stability class are used;

No mitigation factors are considered;

Ignition sources are uniformly distributed (the probability of ignition does not depend on

release directions); and

Consequence effects can be treated discretely. The impact level from a particular

increment is constant, and the effect in a defined impact zone is constant.

3.2.2 High Volume Water Pipelines [1]

The risk from water pipelines is associated with the potential for flooding and for subterranean

erosion leading to subsidence or a sinkhole. For water lines, an evaluation for potential physical

impacts was conducted as no probability analysis was required. The water impact was estimated

for two scenarios:

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1. a release on relatively flat terrain that forms a circular pool spreading from the release

point; and

2. a release illustrating the effect of drainage in a channel.

The water pipeline analysis assumed the following:

Average design velocity of 5 feet per second

Time to shut-off of five minutes

Drain down after shut off is negligible

Spill pool depth of 12 inches

3.3 PIPELINES WITHIN 1,500 FEET OF PROPOSED SITE

The site maps in Appendix C as well as the resources in Appendix F were used to identify the

high pressure hazardous substance pipelines and high volume water lines within 1,500 feet of the

proposed site. Table 3-1 summarizes the pipelines identified for analysis in this PSHA. See the

maps in Appendix D for the pipeline locations.

TABLE 3-1 High Pressure Hazardous Substance Pipelines and High Volume Water Lines

within 1,500 Feet of Proposed Site

Owner/Operator Pipeline Pipeline Length with

1,500 Feet of Site

(feet)

Minimum Distance from

Pipeline to Proposed Site

(feet)

Crimson Pipeline LP 12” crude oil 3,200 10

ExxonMobil 6” gas 3,200 600

ExxonMobil 4” crude oil 2,575 600

10” crude oil 1,450 1,075

Golden State Water Company 16” water 3,100 25

Note, Education Code §17213(a)(3) does not allow a site to contain one or more pipelines,

situated underground or aboveground, that carries hazardous substances, extremely hazardous

substances, or hazardous wastes, unless the pipeline is a natural gas line that is used only to

supply natural gas to that school or neighborhood. This PSHA did not identify any such pipelines

on the proposed site but did note the following easement which was recorded for the site:

Easement(s) for private roadway crossing, underground and/or utility line crossings and

underground pipe and sewer line crossings and rights incidental thereto as reserved in a

document recorded November 9, 1961 as Instrument No. 424, of official records. Among

other things, stated no more than four (4) easement to be granted.

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3.4 RISK ANALYSIS RESULTS

3.4.1 High Pressure Hazardous Substance Pipelines

Table 3-2 summarizes the estimated risks per year for the high pressure hazardous substance

pipelines within 1,500 feet of the proposed site. Based on the analysis, the proposed site has a

total Individual Risk from all pipelines below the CDE’s criterion of 1 chance in a million each

year. See Appendices A and B for details of the risk calculations.

TABLE 3-2 High Pressure Hazardous Substance Pipeline Risks

Pipeline IR(LJF) IR(RJF) IR(LFF) IR(RFF) IR(LEX) IR(REX) IR

Crimson 12” crude oil 1.3E-07 2.1E-08 0 1.1E-10 0 0 1.5E-07

ExxonMobil 6” gas 0 0 0 1.1E-09 0 0 1.1E-09

ExxonMobil 4” crude oil 0 0 0 0 0 0 0

ExxonMobil 10” crude oil 0 0 0 0 0 0 0

Total IR: 1.5E-07

CDE IRC: 1.0E-06

3.4.2 High Volume Water Pipelines

There is one 16” diameter underground water pipeline approximately 25 feet east of the site. The

pipeline runs north-south underneath Inglewood Avenue which is approximately 60 feet wide.

Releases are based on an assumed failure of the pipe with flow from the pipeline’s entire

diameter. Assuming an average design velocity of five feet per second, time to shut-off is five

minutes, drain down after shut off is assumed negligible, and a spill pool depth of 12 inches, the

impact distance was then calculated for two scenarios:

1. a release on relatively flat terrain that forms a circular pool west of the release point; and

2. a release illustrating the effect of drainage in a channel formed by the street curbs.

Scenario #1 – Circular Pool

The pool is assumed to form on the proposed site side of the water pipeline. The diameter of the

spill pool was used to estimate the impact distance as follows:

Nominal pipe area = (pr2) = (3.14.15 * 8

2) = 201.06 in

2 = 1.40 ft

2

Release rate = 1.40 ft2 * 5 ft/sec * 60 sec/min = 420 cfm = 3,142 gpm

Release volume = 420 cfm * 5 min = 2,100 ft3

Pool surface area (1 foot depth) = 2,100 ft3 / 1 ft = 2,100 ft

2

Impact distance for circular pool = (4 * 2,100 ft2 / p)

0.5 = 52 feet

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Scenario #2 - Channel

Inglewood Avenue is approximately 60 feet wide. The impact width for a rectangular channel 60

feet in length is estimated as follows:

Pool surface area (1 foot depth) = 2,100 ft3 / 1 ft = 2,100 ft

2

Channel length = 60 ft

Impact width along Inglewood Avenue = (2,100 ft2 / 60 ft) = 35 feet

Comments

The water pipeline runs underneath Inglewood Avenue which is adjacent to the existing

Lawndale High School as well as the proposed site. Although a spill from the water pipeline

could reach the proposed site, it is assumed that the existing street curbs and storm drains along

Inglewood Avenue will provide acceptable mitigation by redirecting the majority of the water

spill away from the proposed site.

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SCS Tracer Environmental 4-1 Mitigations

4.0 MITIGATIONS

4.1 HIGH PRESSURE HAZARDOUS SUBSTANCE PIPELINES

Since the total individual risk from all high pressure hazardous substance pipelines was

estimated to be less than the CDE’s Individual Risk Criterion (IRC) of one chance in a million

each year, this study does not recommend any mitigations to lower the potential risk.

4.2 HIGH VOLUME WATER PIPELINES

A 16” water pipeline runs underneath Inglewood Avenue which is adjacent to the existing

Lawndale High School as well as the proposed site. Although a spill from the water pipeline

could reach the proposed site, it is assumed that the existing street curbs and storm drains along

Inglewood Avenue will provide acceptable mitigation by redirecting the majority of the water

spill away from the proposed site.

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SCS Tracer Environmental 5-1 Conclusions

5.0 CONCLUSIONS

This PSHA analyzed the potential safety risks from high pressure hazardous substance pipelines

within 1,500 feet of the proposed site using the CDE’s Pipeline Risk Analysis Protocol. The

analysis found that the total estimated risk of 0.15 in million per year is below the CDE’s

individual risk criterion of 1.0 in a million per year. Since the proposed site is estimated to have

an insignificant safety risk from such pipelines, no mitigation measures are recommended.

In addition, the proposed site was not expected to be significantly impacted by the nearby 16”

high volume water pipeline since the street curbing and storm drains are assumed to redirect the

majority of any water spills away from the site.

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SCS Tracer Environmental R-1 References

REFERENCES

1. URS Corporation, “California Department of Education Guidance Protocol School Site

Pipeline Risk”, http://www.cde.ca.gov/ls/fa/sf/protocol07.asp, February 2007.

2. Google, “Google Earth Pro”, http://www.google.com/earth/index.html, May 2012.

http://www.cde.ca.gov/ls/fa/sf/protocol07.asp

http://www.google.com/earth/index.html

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SCS Tracer Environmental Standard Reporting Forms

APPENDIX A

STANDARD REPORTING FORMS

California Department of Education CCR, Title 5, Pipeline Risk Analysis Report

Form 1 – Administrative, Summary, and Signature Form

Local Educational Agency

Date 5/20/2012

Local Educational Agency Centinela Valley Union High School District

Contact

Telephone Number 310-263-3200

E-mail Address

Street Address 14901 S. Inglewood Avenue

Department or Mail Drop

City Lawndale

County Los Angeles

Zip Code 90260

Proposed School Campus Site

Name 14701 S. Inglewood Ave, Hawthorne, CA

Location Description The Additional Property (~ 25 feet x 418 feet) is

located at 14701 S. Inglewood Avenue in Hawthorne,

California. The site is a former railroad right of way

that is the southern portion of APN 4149-001-145. The

surrounding area is urban and relatively flat.

Pipeline of Interest

Operator / Owner Crimson (12” crude line), ExxonMobil (6” gas line),

ExxonMobil (4” crude line), ExxonMobil (10” crude

line), and Golden State Water Co. (16” water line).

Product Transported See above.

Pipeline Diameter (inches) See above.

Operating Pressure (psig) Crimson: Unknown (assumed 400 psig).

ExxonMobil: Lines currently idle (assumed 400 psig).

Golden State Water Company: (not applicable).

Closet Approach to Property Line

(or boundary between the usable

and unusable portion of the site if

the unusable portion faces the

pipeline.) (ft)

Crimson (12” crude line) = 10 ft

ExxonMobil (6” gas line) = 600 ft

ExxonMobil (4” crude line) = 600 ft

ExxonMobil (10” crude line) = 1,075 ft

Golden State Water Co. (16” water line) = 25 ft.

Individual Risk Estimate Result

Type of Analysis (Check One) Stage 1 Stage 2 X Stage 3

Individual Risk Estimate Value 1.5E-07

Individual Risk Criterion 1.0E-06 (0.000001)

IR Significance (check one) Significant

Insignificant X (Continued on next page)


Form 1 – Administrative, Summary, and Signature Form (Continued from previous page)

Population Risk Indicator Result

Protocol Average IR 3.8E-08

IR Indicator (Average IR / Property

Line IR Ratio) 0.25

Population Risk Indicator

Prevention and Mitigation Recommendations/Implementations (Add additional sheets with

more details as needed.)

Prevention Measures: No additional prevention measures recommended.

Mitigation Measures: No additional mitigation measures recommended.

Conclusions/Other Suggestions/Recommendations (Add more sheets, if needed.)

Insignificant safety risk based on the analysis.

Certification and Signatures of Risk Analyst(s)

This analysis was conducted according to the 2007 CDE Protocol except as noted. All

modifications within the Stage 2 framework, and Stage 3 analyses and exceptions to the data and

processes established in the 2007 CDE Protocol, if any, were based upon my professional opinion

and in a manner consistent with the standards of care and skill ordinarily exercised by

professionals working on similar projects.

I certify that the estimated risk levels were derived based upon the 2007 CDE Protocol, unless

otherwise noted, and that these levels demonstrate, within reasonable expectations of

uncertainties for such estimates, that the estimated Individual Risk for the school site, as the site

was planned at the time of this analysis, including mitigation measures, if any, meets the

Individual Risk Criterion stated in the 2007 CDE Protocol, based on the information provided to

me.

Printed Name Signature Position or Title

Greg Hauser Project Director

Notice: In the event that the Individual Risk Criterion could not be met, at the option of the

LEA, CDE will still accept a report for review and consultation with the LEA.

California Department of Education CCR, Title 5, Pipeline Risk Analysis Report Form 2 - Pipeline Risk Analysis Input Data

Date: 5/20/2012

Local Educational Agency: Centinela Valley Union High School District

Proposed School Site Name: Lawndale High School

Proposed School Estimated Population:

Product Designate by

an “X”

Natural gas (NG) X

Crude oil

Gasoline

Liquefied natural gas (LNG)

Liquefied petroleum gas (LPG)

Natural gas liquids (NGL)

Other refined product (specify)

Other substance (specify)

Pipeline Location Attributes Units Value

Segment length ft 3,200

Closest approach to property line ft 600

Closest approach to usable portion of the school site ft 600

Land use by class location (49 CFR Part 192) Class

Pipeline Attributes

Diameter inches 6

Maximum operating pressure psig 400 (assumed)

Average operating pressure psig 400 (assumed)

Depth of burial ft

Distance to nearest compressor (gas) or pump station (liquid) ft

Throughput

Liquid (enter value, meter, etc.) gpm

Nearest block valve locations, upstream and downstream of segment

of concern

Above ground components within 1500-ft zone

Number

Type

Pipeline location on terrain gradient relative to school

(Designate with an “X” by appropriate description)

Flat X

Up gradient

Down gradient

“Convoluted”


Date: 5/20/2012





an “X”

Natural gas (NG)

Crude oil X

Gasoline











Pipeline Attributes

Diameter inches 4



Depth of burial ft


Throughput



of concern


Number

Type



Flat X

Up gradient

Down gradient

“Convoluted”


Date: 5/20/2012





an “X”

Natural gas (NG)

Crude oil X

Gasoline








Closest approach to property line ft 1,075

Closest approach to usable portion of the school site ft 1,075


Pipeline Attributes

Diameter inches 10



Depth of burial ft


Throughput



of concern


Number

Type



Flat X

Up gradient

Down gradient

“Convoluted”


Date: 5/20/2012





an “X”

Natural gas (NG)

Crude oil X

Gasoline











Pipeline Attributes

Diameter inches 12



Depth of burial ft


Throughput



of concern


Number

Type



Flat X

Up gradient

Down gradient

“Convoluted”

California Department of Education

CCR, Title 5, Pipeline Risk Analysis Report Form 3 - Standard Protocol Calculation Summary

Release Probability Calculations Variable Value

Data Source if Different from

Protocol

Basic Data Input

Baseline frequency per pipeline mile F0,

releases/ mile-year

Default Historical or default release frequency

from Table 4-3 or Appendix B.

Segment length within 1500-ft buffer SEG, Miles Maps Determine from site maps, GIS, or

other sources

Nearest property line distance R0, ft Maps Determine from maps

Receptor location distance, if different

than nearest property line

R(i), ft Maps Determine from maps

Base release probability P0 Default t) F0(1P0

e

Probability adjustment factor PAF Default Default value selected by analyst

Adjusted base probability PA Default PA = P0 PAF

Special Seismic Considerations Please summarize and/or list below any adjustments made to the Protocol base risk analysis estimates and the

special seismic conditions and studies upon which these adjustments were based.

If adjustments were based upon special seismic conditions, the signature(s) and titles of those professionals

involved are required. Attach additional pages if needed. No adjustments made.

Signatures for Above, If Needed

Printed Name Signature Title Greg Hauser Project Director

Protocol Basis Scenario Probabilities XSEG length, leak, ft:

Leak jet or pool fire Calculated using CDE charts/template.

Leak flash fire Calculated using CDE charts/template.

Leak gas or vapor explosion Calculated using CDE charts/template.

Individual XSEG failure and release

probabilities, leak, PA(LX):

Calculated using CDE charts/template. (Continued on next page.)

Release Probability Calculations Variable Value


Protocol

Leak jet or pool fire Calculated using CDE charts/template.

Leak flash fire Calculated using CDE charts/template.

Leak gas or vapor explosion Calculated using CDE charts/template.

XSEG length, rupture, ft: Calculated using CDE charts/template.

Rupture jet or pool fire Calculated using CDE charts/template.

Rupture flash fire Calculated using CDE charts/template.

Rupture gas or vapor explosion Calculated using CDE charts/template.

Individual XSEG failure and release

probabilities, rupture, PA(RX):

Calculated using CDE charts/template.

Rupture jet or pool fire Calculated using CDE charts/template.

Rupture flash fire Calculated using CDE charts/template.

Rupture gas or vapor explosion Calculated using CDE charts/template.

Insert Protocol default values or exceptions to the Protocol default

values:

(If values other than Protocol default

values were used, indicate the value in the

appropriate cell and indicate the data

source.)

Probability of leak PC(L) Default Default: 0.8

Probability of rupture PC(R) Default Default: 0.2

Probability of leak ignition PC(LIG) Default Default: gas 0.3 (FEMA 1989);

gasoline, 0,09; liquids other than

gasoline (e.g., crude oil): 0.03

Probability of rupture ignition PC(RIG) Default Default: gas 0.45 (FEMA 1989);

gasoline: 0.09; liquids other than

gasoline (e.g., crude oil): 0.03

(Continued on next page)


Form 3 - Standard Protocol Calculation Summary (Continued from previous page)

Release Probability

Calculations Variable Value


Protocol

Insert Protocol default values or exceptions to the Protocol default

values:

(If value other than default used,

indicate value in appropriate column

and indicate data source.)

Probability of fire on ignition PC(FIG) Default Default: gas 0.99 (FEMA 1989); liquid

0.95

Probability of explosion on

ignition

PC(EIG)

Default Default: gas 0.01; liquid 0.05

Probability of flash fire PC(FF) Default Default: gas 0.01; liquid 0.05

Probability of jet fire (gas

pipelines) or pool fire (liquid

pipelines)

PC(JF) Default Default: gas = 0.98; liquid = 0.95

Probability of occupancy PC(OCC) Default Default: 180 days per year, 8 hrs per

day.

Probability of outdoor exposure

PC(OUT) Default Default: 2 hr outdoors during an 8-hour

day onsite.

Probability of leak jet/pool fire

impact

PCI(LJF) Calculated using CDE charts/template.

Probability of rupture jet/pool

fire impact

PCI(RJF) Calculated using CDE charts/template.

Probability of leak flash fire

impact

PCI(LFF) Calculated using CDE charts/template.

Probability of rupture flash fire

impact

PCI(RFF) Calculated using CDE charts/template.

Probability of leak explosion

impact

PCI(LEX) Calculated using CDE charts/template.

Probability of rupture explosion

impact

PCI(REX) Calculated using CDE charts/template.

Individual Risk Summary

Leak jet fire IR IR(LJF) Calculated using CDE charts/template.

Rupture jet fire IR IR(RJF) Calculated using CDE charts/template.

Leak flash fire IR IR(LFF) Calculated using CDE charts/template.

Rupture flash fire IR IR(RFF) Calculated using CDE charts/template.

Leak explosion IR IR(LEX) Calculated using CDE charts/template.

Rupture explosion IR IR(REX) Calculated using CDE charts/template.

Total IR and IRC Total Individual Risk 1.5E-07

CDE Individual Risk Criterion 1.0E-06

Check shaded boxes as follows:

If TIF / IRC > 1.0 “Significant”

If TIF / IRC < =1.0 X “Insignificant”

IR and Population Risk Indicators IR Indicator 0.25

Population Risk Indicator


CCR, Title 5, Pipeline Risk Analysis Report Form 4 - Alternative Calculations Summary

School Site: Lawndale High School

Listing of Attached Alternative Documentation: None.


CCR, Title 5, Pipeline Risk Analysis Report Form 5 - Supplementary Documentation

School Site: Lawndale High School

Listing of Attached Supplementary Documentation:

See CDE template calculations in Appendix B of the full Pipeline Safety Hazard Assessment (PSHA).

Assumed 400 psig pressure for the gas and crude oil lines.

Estimated the crude oil liquid pool diameters using similar parameters as for the high volume water line (e.g.

release velocity, time to shut-off, pool depth.

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SCS Tracer Environmental Risk Calculations

APPENDIX B

RISK CALCULATIONS

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SCS Tracer Environmental B-1 Risk Calculations

EXXON MOBIL 6 INCH GAS PIPELINE

.

Workbook: TIR CALCS 3.07

Sheet: Title


PIPELINE RISK ANALYSIS PROTOCOL TOTAL INDIVIDUAL RISK (TIR) ESTIMATING AID

To be used in conjunction with the CDE Guidance Protocol for School


Site Pipeline Risk Analysis

March 2007

CDE provides this template for the convenience of Protocol users as a template. It is the responsibility of the user to ensure that calculations match and are appropriate for CDE provides this template for the convenience of Protocol users as a template. It is

the responsibility of the user to ensure that calculations match and are appropriate for the risk analysis being conducted for a particular case. While both CDE and its

contractor have sought to make this spreadsheet free of errors there is no expressed or implied warranty to that it is so.


Sheet: Title

General Instructions

1. This spreadsheet can be used in conjunction with the Protocol to estimate the individual risk. It is set up in simple form with direct data entry for a given case in designated cells. Other cells contain the calculations and default data that would only be changed if alternative sources of data eventually replace those used as the standard Protocol values.

2. The spreadsheet contains several individual worksheets in addition to these instructions:


Sheet: General Instructions

standard Protocol values.


3. Variable List identifies the names of the variables used. It matches the names used in the protocol document.

4. XSEG Calculations calculates the individual hazard segment lengths.

5. TIR1 calculates the IR for the closest of four locations along the centerline of the impacts from a release from the hazard source point on the pipeline. This is the location that corresponds to the property line location closest to the pipeline. It is the receptor location currently designated by CDE as the location for calculating the

5. TIR1 calculates the IR for the closest of four locations along the centerline of the impacts from a release from the hazard source point on the pipeline. This is the location that corresponds to the property line location closest to the pipeline. It is the receptor location currently designated by CDE as the location for calculating the IR value that is compared with the CDE IR Criterion.

6. TIR2, TIR3, TIR4, are for calculating alternative receptor locations used along with the TIR1 in the TIR Index and Population Indicator calculations described in Chapter 4 of the Protocol.

7. Instructions for each of the worksheets are provided in the worksheets.



Pipe

Size Press.

Hazard

X

RX

(1%) R0 XSEG

RX

(1%) R0 XSEG

RX

(1%) R0 XSEG

RX

(1%) R0 XSEG

(in) (psig) (ft) (ft) (ft) (ft) (ft) (ft) (ft) (ft) (ft) (ft) (ft) (ft)

End Zone 3 -Back

Property Line

XSEG CalculationsPipe Size,

Pressure, and

Hazard Type

Front Property

Line - Begin Zone

1

Begin Zone 2 Begin Zone 3


Sheet: XSEG Calculations

6 400 LJF 33 600 0 33 740 0 33 880 0 33 1020 0

6 400 RJF 90 600 0 90 740 0 90 880 0 90 1020 0

6 400 LFF 110 600 0 110 740 0 110 880 0 110 1020 0

6 400 RFF 900 600 1342 900 740 1024 900 880 377 900 1020 0

6 400 LEX 0 600 0 0 740 0 0 880 0 0 1020 0

6 400 REX 0 600 0 0 740 0 0 880 0 0 1020 0

Green cells indicate where input data are entered for the case being analyzed.

The numbers shown apply for a the specific example illustrated. Substitute the appropriate values for the actual number being analyzed.

The Pipe Size is the pipe diameter in inches. The Pressure is the operating pressure in punds per square inch gage (psig).

Hazard acronyms are defined in the Protocol.

square inch gage (psig).


The 1% mortality (0.01) probability impact distance RX for each hazard is obtained from the appropriate hazard figure in the Protocol, Chapter 4.

R0 is the receptor distance being analyzed and is explained in the Protocol, Chapter 4.

XSEG is as described in the Protocol, Chapter 4.

Zones 1, 2, and 3 are defined in the Protocol, Chapter 4 for use in the TIR calculations. If more than


Zones 1, 2, and 3 are defined in the Protocol, Chapter 4 for use in the TIR calculations. If more than three zones are used, as explained in the Protocol, Section 4, more worksheets of the same type as shown can be added.



VARIABLES LIST

Green cells indicate data entry cells. DATA SOURCE or DEFAULT VALUE

Product Phase I EA, etc.

Diameter Phase I EA, etc.

Pressure Phase I EA, etc.

R0 Site Map or Field Data

XSEG(LJF) Protocol Calculation

XSEG(RJF) Protocol Calculation

XSEG(LFF) Protocol Calculation

XSEG(RFF) Protocol Calculation

XSEG(LEX) Protocol Calculation

XSEG(REX) Protocol Calculation

F0 Protocol Table

P0 Protocol Table

PAF User data

PA Protocol Calculation

P(FF) Protocol Calculation

P(JF) Protocol Calculation

P(EX) Protocol Calculation

PC(L) 0.8

PC(LIG) 0.3

PC(FIG) 0.99

PC(JF) 0.98

PC(FF) 0.01

PC(EIG) 0.01

PC(R) 0.2

PC(RIG) 0.45

PC(FIG) 0.99

PC(JF) 0.98

PC(FF) 0.01

PC(EIG) 0.01

PCI(LJF) Protocol Calculation

PCI(RJF) Protocol Calculation

PCI(LFF) Protocol Calculation

PCI(RFF) Protocol Calculation

PCI(LEX) Protocol Calculation

PCI(REX) Protocol Calculation

PF(LJF) Protocol Calculation

PF(RJF) Protocol Calculation

PF(LFF) Protocol Calculation

PF(RFF) Protocol Calculation

PF(LEX) Protocol Calculation

PF(REX) Protocol Calculation

Base and Conditional Probability Calculations Data

Input Data

Maximum Fatality Probability for XSEG

Base Probabilities

Leak Conditional Probabilities

Rupture Conditional Probabilities

Conditional Probability of Impacts


Sheet: Variables List

TIR CALCULATIONS - BEGIN ZONE 1 - FRONT PROPERTY LINE

Green cells indicate data entry cells.

Product natural gas

Diameter 6 inches

Pressure 400 psig

R0 600 ft

XSEG RX(1%) Units

XSEG(LJF) 0 ft

XSEG(RJF) 0 ft

Input Data 1. These instruction boxes apply to Worksheets TIR1, 2, 3, and 4. 2. Enter the Input Data indicated for the case under analysis. 3. Enter the XSEG values from Worksheet "XSEG Calculations".4. In the table below enter the F0 data for the appropriate type pf pipeline from the failure frequency data in the Protocol, Chapter 4.

Workbook:TIR CALCS 3.07

Sheet: TIR1

XSEG(RJF) 0 ft

XSEG(LFF) 0 ft

XSEG(RFF) 1342 ft

XSEG(LEX) 0 ft

XSEG(REX) 0 ft

F0 1.2E-04 PC(L) 0.8 PC(R) 0.2 PC(OCC) 0.16

P0 1.2E-04 PC(LIG) 0.3 PC(RIG) 0.45 PC(OUT) 0.25

PAF 1.0 PC(FIG) 0.99 PC(FIG) 0.99

PA 1.2E-04 PC(JF) 0.98 PC(JF) 0.98

Leak Rupture Exposure

Base and Conditional Probability CalculationsBase

for the appropriate type pf pipeline from the failure frequency data in the Protocol, Chapter 4. 5.Enter a value for the other green cell variables as explained in Chapter 4.

PA 1.2E-04 PC(JF) 0.98 PC(JF) 0.98

PC(FF) 0.01 PC(FF) 0.01

PC(EIG) 0.01 PC(EIG) 0.01

Calculated Values:

PA(LJF) 0.0E+00 PCI(LJF) 0.233 PCI(RJF) 0.087

PA(RJF) 0.0E+00 PCI(LFF) 0.002 PCI(RFF) 0.001

PA(LFF) 0.0E+00 PCI(LEX) 0.002 PCI(REX) 0.001 PC(EXPO) 0.04

PA(RFF) 3.0E-05

PA(LEX) 0.0E+00

PA(REX) 0.0E+00

PC(LJF) = PA(LJF) x PCI(LJF) x PC(EXPO) = 0.0E+00 0.23 0.040 0.0E+00

PC(RJF) = PA(RJF) x PCI(RJF) x PC(EXPO) = 0.0E+00 0.09 0.040 0.0E+00

PC(LFF) = PA(LFF) x PCI(LFF) x PC(EXPO) = 0.0E+00 0.002 0.040 0.0E+00

PC(RFF) = PA(RFF) x PCI(RFF) x PC(EXPO) = 3.0E-05 0.001 0.040 1.1E-09

PC(LEX) = PA(LEX) x PCI(LEX) x PC(EXPO) = 0.0E+00 0.002 0.040 0.0E+00

PC(REX) = PA(REX) x PCI(REX) x PC(EXPO) = 0.0E+00 0.001 0.040 0.0E+00

Based on data from impact distance figures in Section 4.6 and mortality figures in Section 4.5, enter

Impact Probability Calculations

Probability Term Values


the maximum impact probability at receptor location for each hazard in MAX PF(X) column.

IR CalculationMAX PF(X) PC(X) IR(X)

IR(LJF) = 1.00 0.0E+00 0.0E+00

IR(RJF) = 1.00 0.0E+00 0.00E+00

IR(LFF) = 1.00 0.0E+00 0.00E+00

IR(RFF) = 1.00 1.1E-09 1.09E-09

IR(LEX) = 1.00 0.0E+00 0.00E+00

IR(REX) = 1.00 0.0E+00 0.00E+00

6. Enter the maximum fatality probability that corresponds to the maximum impact for each hazard type according to the Protocol, Chapter 4.

IR(REX) = 1.00 0.0E+00 0.00E+00

1.1E-09

1.0E-06

0.00

0.51PROTOCOL TIR INDICATOR RATIO

CDE INDIVIDUAL RISK CRITERION, IRC

TIR/IRC RATIO

TOTAL INDIVIDUAL RISK, TIR


Sheet: TIR1

TIR CALCULATIONS - END ZONE 1 - BEGIN ZONE 2


Input Data

Product natural gas

Diameter 6 inches

Pressure 400 psig

R0 740 ft

XSEG RX(1%) Units

XSEG(LJF) 0 ft

XSEG(RJF) 0 ft

XSEG(LFF) 0 ft

XSEG(RFF) 1024 ft

XSEG(LEX) 0 ft

XSEG(REX) 0 ft

F0 1.2E-04 PC(L) 0.8 PC(R) 0.2 PC(OCC) 0.16


PAF 1.0 PC(FIG) 0.99 PC(FIG) 0.99

PA 1.2E-04 PC(JF) 0.98 PC(JF) 0.98

PC(FF) 0.01 PC(FF) 0.01





PA(RFF) 2.3E-05

PA(LEX) 0.0E+00

PA(REX) 0.0E+00









IR Calculation

MAX PF(X) PC(X) IR(X)

IR(LJF) = 1.00 0.0E+00 0.0E+00

IR(RJF) = 1.00 0.0E+00 0.0E+00

IR(LFF) = 1.00 0.0E+00 0.0E+00

IR(RFF) = 1.00 8.3E-10 8.3E-10

IR(LEX) = 1.00 0.0E+00 0.0E+00

IR(REX) = 1.00 0.0E+00 0.0E+00

TIR2 = 8.3E-10

Base and Conditional Probability Calculations



Exposure Base Leak Rupture


Sheet: TIR2



Product natural gas

Diameter 6 inches

Pressure 400 psig

R0 880 ft

XSEG RX(1%) Units

XSEG(LJF) 0 ft

XSEG(RJF) 0 ft

XSEG(LFF) 0 ft

XSEG(RFF) 377 ft

XSEG(LEX) 0 ft

XSEG(REX) 0 ft

F0 1.2E-04 PC(L) 0.8 PC(R) 0.2 PC(OCC) 0.16


PAF 1.0 PC(FIG) 0.99 PC(FIG) 0.99

PA 1.2E-04 PC(JF) 0.98 PC(JF) 0.98

PC(FF) 0.01 PC(FF) 0.01





PA(RFF) 8.6E-06

PA(LEX) 0.0E+00

PA(REX) 0.0E+00









IR Calculation


IR(LJF) = 1.00 0.0E+00 0.0E+00

IR(RJF) = 1.00 0.0E+00 0.0E+00

IR(LFF) = 1.00 0.0E+00 0.0E+00

IR(RFF) = 1.00 3.1E-10 3.1E-10

IR(LEX) = 1.00 0.0E+00 0.0E+00

IR(REX) = 1.00 0.0E+00 0.0E+00

TIR3 = 3.1E-10

Rupture Exposure

Input Data




Base Leak


Sheet: TIR3

TIR CALCULATIONS - END ZONE 3 - BACK PROPERTY LINE


Product natural gas

Diameter 6 inches

Pressure 400 psig

R0 1020 ft

XSEG RX(1%) Units

XSEG(LJF) 0 ft

XSEG(RJF) 0 ft

XSEG(LFF) 0 ft

XSEG(RFF) 0 ft

XSEG(LEX) 0 ft

XSEG(REX) 0 ft

F0 1.2E-04 PC(L) 0.8 PC(R) 0.2 PC(OCC) 0.16


PAF 1.0 PC(FIG) 0.99 PC(FIG) 0.99

PA 1.2E-04 PC(JF) 0.98 PC(JF) 0.98

PC(FF) 0.01 PC(FF) 0.01





PA(RFF) 0.0E+00

PA(LEX) 0.0E+00

PA(REX) 0.0E+00




PC(RFF) = PA(RFF) x PCI(RFF) x PC(EXPO) = 0.0E+00 0.001 0.040 0.0E+00






IR(LJF) = 1.00 0.0E+00 0.0E+00

IR(RJF) = 1.00 0.0E+00 0.0E+00

IR(LFF) = 1.00 0.0E+00 0.0E+00

IR(RFF) = 1.00 0.0E+00 0.0E+00

IR(LEX) = 1.00 0.0E+00 0.0E+00

IR(REX) = 1.00 0.0E+00 0.0E+00

TIR4 = 0.0E+00

Rupture Exposure


Input Data



Base Leak


Sheet: TIR4

Rev. 0



EXXON MOBIL 4 INCH CRUDE OIL PIPELINE

.


Sheet: Title






March 2007





Sheet: Title

Pipe

Size Press.

Hazard

X

RX

(1%) R0 XSEG

RX

(1%) R0 XSEG

RX

(1%) R0 XSEG

RX

(1%) R0 XSEG


End Zone 3 -Back

Property Line


Pressure, and

Hazard Type

Front Property

Line - Begin Zone

1




4 400 LJF 60 600 0 60 740 0 60 880 0 60 1020 0

4 400 RJF 60 600 0 60 740 0 60 880 0 60 1020 0

4 400 LFF 5 600 0 5 740 0 5 880 0 5 1020 0

4 400 RFF 10 600 0 10 740 0 10 880 0 10 1020 0

4 400 LEX 0 600 0 0 740 0 0 880 0 0 1020 0

4 400 REX 0 600 0 0 740 0 0 880 0 0 1020 0















VARIABLES LIST












F0 Protocol Table

P0 Protocol Table

PAF User data





PC(L) 0.8

PC(LIG) 0.09

PC(FIG) 0.95

PC(JF) 0.95

PC(FF) 0.05

PC(EIG) 0.05

PC(R) 0.2

PC(RIG) 0.03

PC(FIG) 0.95

PC(JF) 0.95

PC(FF) 0.05

PC(EIG) 0.05














Input Data


Base Probabilities








Product crude oil

Diameter 4 inches

Pressure 400 psig

R0 600 ft

XSEG RX(1%) Units

XSEG(LJF) 0 ft

XSEG(RJF) 0 ft



Sheet: TIR1

XSEG(RJF) 0 ft

XSEG(LFF) 0 ft

XSEG(RFF) 0 ft

XSEG(LEX) 0 ft

XSEG(REX) 0 ft

F0 2.3E-03 PC(L) 0.8 PC(R) 0.2 PC(OCC) 0.16


PAF 1.0 PC(FIG) 0.95 PC(FIG) 0.95

PA 2.3E-03 PC(JF) 0.95 PC(JF) 0.95




PA 2.3E-03 PC(JF) 0.95 PC(JF) 0.95

PC(FF) 0.05 PC(FF) 0.05


Calculated Values:




PA(RFF) 0.0E+00

PA(LEX) 0.0E+00

PA(REX) 0.0E+00













IR(LJF) = 1.00 0.0E+00 0.0E+00

IR(RJF) = 1.00 0.0E+00 0.00E+00

IR(LFF) = 1.00 0.0E+00 0.00E+00

IR(RFF) = 1.00 0.0E+00 0.00E+00

IR(LEX) = 1.00 0.0E+00 0.00E+00

IR(REX) = 1.00 0.0E+00 0.00E+00


IR(REX) = 1.00 0.0E+00 0.00E+00

0.0E+00

1.0E-06

0.00

#DIV/0!PROTOCOL TIR INDICATOR RATIO


TIR/IRC RATIO



Sheet: TIR1



Input Data

Product crude oil

Diameter 4 inches

Pressure 400 psig

R0 740 ft

XSEG RX(1%) Units

XSEG(LJF) 0 ft

XSEG(RJF) 0 ft

XSEG(LFF) 0 ft

XSEG(RFF) 0 ft

XSEG(LEX) 0 ft

XSEG(REX) 0 ft

F0 2.3E-03 PC(L) 0.8 PC(R) 0.2 PC(OCC) 0.16


PAF 1.0 PC(FIG) 0.95 PC(FIG) 0.95

PA 2.3E-03 PC(JF) 0.95 PC(JF) 0.95

PC(FF) 0.05 PC(FF) 0.05





PA(RFF) 0.0E+00

PA(LEX) 0.0E+00

PA(REX) 0.0E+00









IR Calculation


IR(LJF) = 1.00 0.0E+00 0.0E+00

IR(RJF) = 1.00 0.0E+00 0.0E+00

IR(LFF) = 1.00 0.0E+00 0.0E+00

IR(RFF) = 1.00 0.0E+00 0.0E+00

IR(LEX) = 1.00 0.0E+00 0.0E+00

IR(REX) = 1.00 0.0E+00 0.0E+00

TIR2 = 0.0E+00






Sheet: TIR2



Product crude oil

Diameter 4 inches

Pressure 400 psig

R0 880 ft

XSEG RX(1%) Units

XSEG(LJF) 0 ft

XSEG(RJF) 0 ft

XSEG(LFF) 0 ft

XSEG(RFF) 0 ft

XSEG(LEX) 0 ft

XSEG(REX) 0 ft

F0 2.3E-03 PC(L) 0.8 PC(R) 0.2 PC(OCC) 0.16


PAF 1.0 PC(FIG) 0.95 PC(FIG) 0.95

PA 2.3E-03 PC(JF) 0.95 PC(JF) 0.95

PC(FF) 0.05 PC(FF) 0.05





PA(RFF) 0.0E+00

PA(LEX) 0.0E+00

PA(REX) 0.0E+00









IR Calculation


IR(LJF) = 1.00 0.0E+00 0.0E+00

IR(RJF) = 1.00 0.0E+00 0.0E+00

IR(LFF) = 1.00 0.0E+00 0.0E+00

IR(RFF) = 1.00 0.0E+00 0.0E+00

IR(LEX) = 1.00 0.0E+00 0.0E+00

IR(REX) = 1.00 0.0E+00 0.0E+00

TIR3 = 0.0E+00

Base Leak Rupture Exposure

Input Data





Sheet: TIR3



Product crude oil

Diameter 4 inches

Pressure 400 psig

R0 1020 ft

XSEG RX(1%) Units

XSEG(LJF) 0 ft

XSEG(RJF) 0 ft

XSEG(LFF) 0 ft

XSEG(RFF) 0 ft

XSEG(LEX) 0 ft

XSEG(REX) 0 ft

F0 2.3E-03 PC(L) 0.8 PC(R) 0.2 PC(OCC) 0.16


PAF 1.0 PC(FIG) 0.95 PC(FIG) 0.95

PA 2.3E-03 PC(JF) 0.95 PC(JF) 0.95

PC(FF) 0.05 PC(FF) 0.05





PA(RFF) 0.0E+00

PA(LEX) 0.0E+00

PA(REX) 0.0E+00










IR(LJF) = 1.00 0.0E+00 0.0E+00

IR(RJF) = 1.00 0.0E+00 0.0E+00

IR(LFF) = 1.00 0.0E+00 0.0E+00

IR(RFF) = 1.00 0.0E+00 0.0E+00

IR(LEX) = 1.00 0.0E+00 0.0E+00

IR(REX) = 1.00 0.0E+00 0.0E+00

TIR4 = 0.0E+00


Input Data





Sheet: TIR4

Rev. 0



EXXON MOBIL 10 INCH CRUDE OIL PIPELINE

.


Sheet: Title






March 2007





Sheet: Title

Pipe

Size Press.

Hazard

X

RX

(1%) R0 XSEG

RX

(1%) R0 XSEG

RX

(1%) R0 XSEG

RX

(1%) R0 XSEG


End Zone 3 -Back

Property Line


Pressure, and

Hazard Type

Front Property

Line - Begin Zone

1




10 400 LJF 60 1075 0 60 1215 0 60 1355 0 60 1495 0

10 400 RJF 80 1075 0 80 1215 0 80 1355 0 80 1495 0

10 400 LFF 5 1075 0 5 1215 0 5 1355 0 5 1495 0

10 400 RFF 10 1075 0 10 1215 0 10 1355 0 10 1495 0

10 400 LEX 0 1075 0 0 1215 0 0 1355 0 0 1495 0

10 400 REX 0 1075 0 0 1215 0 0 1355 0 0 1495 0















VARIABLES LIST












F0 Protocol Table

P0 Protocol Table

PAF User data





PC(L) 0.8

PC(LIG) 0.09

PC(FIG) 0.95

PC(JF) 0.95

PC(FF) 0.05

PC(EIG) 0.05

PC(R) 0.2

PC(RIG) 0.03

PC(FIG) 0.95

PC(JF) 0.95

PC(FF) 0.05

PC(EIG) 0.05














Input Data


Base Probabilities








Product crude oil

Diameter 10 inches

Pressure 400 psig

R0 1075 ft

XSEG RX(1%) Units

XSEG(LJF) 0 ft

XSEG(RJF) 0 ft



Sheet: TIR1

XSEG(RJF) 0 ft

XSEG(LFF) 0 ft

XSEG(RFF) 0 ft

XSEG(LEX) 0 ft

XSEG(REX) 0 ft

F0 2.3E-03 PC(L) 0.8 PC(R) 0.2 PC(OCC) 0.16


PAF 1.0 PC(FIG) 0.95 PC(FIG) 0.95

PA 2.3E-03 PC(JF) 0.95 PC(JF) 0.95




PA 2.3E-03 PC(JF) 0.95 PC(JF) 0.95

PC(FF) 0.05 PC(FF) 0.05


Calculated Values:




PA(RFF) 0.0E+00

PA(LEX) 0.0E+00

PA(REX) 0.0E+00













IR(LJF) = 1.00 0.0E+00 0.0E+00

IR(RJF) = 1.00 0.0E+00 0.00E+00

IR(LFF) = 1.00 0.0E+00 0.00E+00

IR(RFF) = 1.00 0.0E+00 0.00E+00

IR(LEX) = 1.00 0.0E+00 0.00E+00

IR(REX) = 1.00 0.0E+00 0.00E+00


IR(REX) = 1.00 0.0E+00 0.00E+00

0.0E+00

1.0E-06

0.00

#DIV/0!PROTOCOL TIR INDICATOR RATIO


TIR/IRC RATIO



Sheet: TIR1



Input Data

Product crude oil

Diameter 10 inches

Pressure 400 psig

R0 1215 ft

XSEG RX(1%) Units

XSEG(LJF) 0 ft

XSEG(RJF) 0 ft

XSEG(LFF) 0 ft

XSEG(RFF) 0 ft

XSEG(LEX) 0 ft

XSEG(REX) 0 ft

F0 2.3E-03 PC(L) 0.8 PC(R) 0.2 PC(OCC) 0.16


PAF 1.0 PC(FIG) 0.95 PC(FIG) 0.95

PA 2.3E-03 PC(JF) 0.95 PC(JF) 0.95

PC(FF) 0.05 PC(FF) 0.05





PA(RFF) 0.0E+00

PA(LEX) 0.0E+00

PA(REX) 0.0E+00









IR Calculation


IR(LJF) = 1.00 0.0E+00 0.0E+00

IR(RJF) = 1.00 0.0E+00 0.0E+00

IR(LFF) = 1.00 0.0E+00 0.0E+00

IR(RFF) = 1.00 0.0E+00 0.0E+00

IR(LEX) = 1.00 0.0E+00 0.0E+00

IR(REX) = 1.00 0.0E+00 0.0E+00

TIR2 = 0.0E+00






Sheet: TIR2



Product crude oil

Diameter 10 inches

Pressure 400 psig

R0 1355 ft

XSEG RX(1%) Units

XSEG(LJF) 0 ft

XSEG(RJF) 0 ft

XSEG(LFF) 0 ft

XSEG(RFF) 0 ft

XSEG(LEX) 0 ft

XSEG(REX) 0 ft

F0 2.3E-03 PC(L) 0.8 PC(R) 0.2 PC(OCC) 0.16


PAF 1.0 PC(FIG) 0.95 PC(FIG) 0.95

PA 2.3E-03 PC(JF) 0.95 PC(JF) 0.95

PC(FF) 0.05 PC(FF) 0.05





PA(RFF) 0.0E+00

PA(LEX) 0.0E+00

PA(REX) 0.0E+00









IR Calculation


IR(LJF) = 1.00 0.0E+00 0.0E+00

IR(RJF) = 1.00 0.0E+00 0.0E+00

IR(LFF) = 1.00 0.0E+00 0.0E+00

IR(RFF) = 1.00 0.0E+00 0.0E+00

IR(LEX) = 1.00 0.0E+00 0.0E+00

IR(REX) = 1.00 0.0E+00 0.0E+00

TIR3 = 0.0E+00

Input Data






Sheet: TIR3



Product crude oil

Diameter 10 inches

Pressure 400 psig

R0 1495 ft

XSEG RX(1%) Units

XSEG(LJF) 0 ft

XSEG(RJF) 0 ft

XSEG(LFF) 0 ft

XSEG(RFF) 0 ft

XSEG(LEX) 0 ft

XSEG(REX) 0 ft

F0 2.3E-03 PC(L) 0.8 PC(R) 0.2 PC(OCC) 0.16


PAF 1.0 PC(FIG) 0.95 PC(FIG) 0.95

PA 2.3E-03 PC(JF) 0.95 PC(JF) 0.95

PC(FF) 0.05 PC(FF) 0.05





PA(RFF) 0.0E+00

PA(LEX) 0.0E+00

PA(REX) 0.0E+00










IR(LJF) = 1.00 0.0E+00 0.0E+00

IR(RJF) = 1.00 0.0E+00 0.0E+00

IR(LFF) = 1.00 0.0E+00 0.0E+00

IR(RFF) = 1.00 0.0E+00 0.0E+00

IR(LEX) = 1.00 0.0E+00 0.0E+00

IR(REX) = 1.00 0.0E+00 0.0E+00

TIR4 = 0.0E+00

Exposure


Input Data



Base Leak Rupture


Sheet: TIR4

Rev. 0



CRIMSON 12 INCH CRUDE OIL PIPELINE

.


Sheet: Title






March 2007





Sheet: Title

Pipe

Size Press.

Hazard

X

RX

(1%) R0 XSEG

RX

(1%) R0 XSEG

RX

(1%) R0 XSEG

RX

(1%) R0 XSEG


End Zone 3 -Back

Property Line


Pressure, and

Hazard Type

Front Property

Line - Begin Zone

1




12 400 LJF 60 10 118 60 150 0 60 290 0 60 430 0

12 400 RJF 110 10 219 110 150 0 110 290 0 110 430 0

12 400 LFF 10 10 0 10 150 0 10 290 0 10 430 0

12 400 RFF 15 10 22 15 150 0 15 290 0 15 430 0

12 400 LEX 0 10 0 0 150 0 0 290 0 0 430 0

12 400 REX 0 10 0 0 150 0 0 290 0 0 430 0















VARIABLES LIST












F0 Protocol Table

P0 Protocol Table

PAF User data





PC(L) 0.8

PC(LIG) 0.09

PC(FIG) 0.95

PC(JF) 0.95

PC(FF) 0.05

PC(EIG) 0.05

PC(R) 0.2

PC(RIG) 0.03

PC(FIG) 0.95

PC(JF) 0.95

PC(FF) 0.05

PC(EIG) 0.05














Input Data


Base Probabilities








Product crude oil

Diameter 12 inches

Pressure 400 psig

R0 10 ft

XSEG RX(1%) Units

XSEG(LJF) 118 ft

XSEG(RJF) 219 ft



Sheet: TIR1

XSEG(RJF) 219 ft

XSEG(LFF) 0 ft

XSEG(RFF) 22 ft

XSEG(LEX) 0 ft

XSEG(REX) 0 ft

F0 2.3E-03 PC(L) 0.8 PC(R) 0.2 PC(OCC) 0.16


PAF 1.0 PC(FIG) 0.95 PC(FIG) 0.95

PA 2.3E-03 PC(JF) 0.95 PC(JF) 0.95




PA 2.3E-03 PC(JF) 0.95 PC(JF) 0.95

PC(FF) 0.05 PC(FF) 0.05


Calculated Values:

PA(LJF) 5.2E-05 PCI(LJF) 0.065 PCI(RJF) 0.005

PA(RJF) 9.5E-05 PCI(LFF) 0.003 PCI(RFF) 0.000


PA(RFF) 9.7E-06

PA(LEX) 0.0E+00

PA(REX) 0.0E+00

PC(LJF) = PA(LJF) x PCI(LJF) x PC(EXPO) = 5.2E-05 0.06 0.040 1.3E-07

PC(RJF) = PA(RJF) x PCI(RJF) x PC(EXPO) = 9.5E-05 0.01 0.040 2.1E-08











IR(LJF) = 1.00 1.3E-07 1.3E-07

IR(RJF) = 1.00 2.1E-08 2.07E-08

IR(LFF) = 1.00 0.0E+00 0.00E+00

IR(RFF) = 1.00 1.1E-10 1.11E-10

IR(LEX) = 1.00 0.0E+00 0.00E+00

IR(REX) = 1.00 0.0E+00 0.00E+00


IR(REX) = 1.00 0.0E+00 0.00E+00

1.5E-07

1.0E-06

0.15

0.25PROTOCOL TIR INDICATOR RATIO


TIR/IRC RATIO



Sheet: TIR1



Input Data

Product crude oil

Diameter 12 inches

Pressure 400 psig

R0 150 ft

XSEG RX(1%) Units

XSEG(LJF) 0 ft

XSEG(RJF) 0 ft

XSEG(LFF) 0 ft

XSEG(RFF) 0 ft

XSEG(LEX) 0 ft

XSEG(REX) 0 ft

F0 2.3E-03 PC(L) 0.8 PC(R) 0.2 PC(OCC) 0.16


PAF 1.0 PC(FIG) 0.95 PC(FIG) 0.95

PA 2.3E-03 PC(JF) 0.95 PC(JF) 0.95

PC(FF) 0.05 PC(FF) 0.05





PA(RFF) 0.0E+00

PA(LEX) 0.0E+00

PA(REX) 0.0E+00









IR Calculation


IR(LJF) = 1.00 0.0E+00 0.0E+00

IR(RJF) = 1.00 0.0E+00 0.0E+00

IR(LFF) = 1.00 0.0E+00 0.0E+00

IR(RFF) = 1.00 0.0E+00 0.0E+00

IR(LEX) = 1.00 0.0E+00 0.0E+00

IR(REX) = 1.00 0.0E+00 0.0E+00

TIR2 = 0.0E+00






Sheet: TIR2



Product crude oil

Diameter 12 inches

Pressure 400 psig

R0 290 ft

XSEG RX(1%) Units

XSEG(LJF) 0 ft

XSEG(RJF) 0 ft

XSEG(LFF) 0 ft

XSEG(RFF) 0 ft

XSEG(LEX) 0 ft

XSEG(REX) 0 ft

F0 2.3E-03 PC(L) 0.8 PC(R) 0.2 PC(OCC) 0.16


PAF 1.0 PC(FIG) 0.95 PC(FIG) 0.95

PA 2.3E-03 PC(JF) 0.95 PC(JF) 0.95

PC(FF) 0.05 PC(FF) 0.05





PA(RFF) 0.0E+00

PA(LEX) 0.0E+00

PA(REX) 0.0E+00









IR Calculation


IR(LJF) = 1.00 0.0E+00 0.0E+00

IR(RJF) = 1.00 0.0E+00 0.0E+00

IR(LFF) = 1.00 0.0E+00 0.0E+00

IR(RFF) = 1.00 0.0E+00 0.0E+00

IR(LEX) = 1.00 0.0E+00 0.0E+00

IR(REX) = 1.00 0.0E+00 0.0E+00

TIR3 = 0.0E+00

Exposure

Input Data




Base Leak Rupture


Sheet: TIR3



Product crude oil

Diameter 12 inches

Pressure 400 psig

R0 430 ft

XSEG RX(1%) Units

XSEG(LJF) 0 ft

XSEG(RJF) 0 ft

XSEG(LFF) 0 ft

XSEG(RFF) 0 ft

XSEG(LEX) 0 ft

XSEG(REX) 0 ft

F0 2.3E-03 PC(L) 0.8 PC(R) 0.2 PC(OCC) 0.16


PAF 1.0 PC(FIG) 0.95 PC(FIG) 0.95

PA 2.3E-03 PC(JF) 0.95 PC(JF) 0.95

PC(FF) 0.05 PC(FF) 0.05





PA(RFF) 0.0E+00

PA(LEX) 0.0E+00

PA(REX) 0.0E+00










IR(LJF) = 1.00 0.0E+00 0.0E+00

IR(RJF) = 1.00 0.0E+00 0.0E+00

IR(LFF) = 1.00 0.0E+00 0.0E+00

IR(RFF) = 1.00 0.0E+00 0.0E+00

IR(LEX) = 1.00 0.0E+00 0.0E+00

IR(REX) = 1.00 0.0E+00 0.0E+00

TIR4 = 0.0E+00

Input Data






Sheet: TIR4

Rev. 0



CRUDE OIL POOL SIZE ESTIMATES

Estimated Crude Oil Pool Size

1. Leak Scenario

Nominal Time Pool Impact

Pipe Pipe to Pool Release Release Release Surface Distance

Diameter Area Velocity Shut-off Depth Rate Rate Volume Area for Pool

(in.) (ft2) (fps) (min) (ft) (gpm) (cfm) (ft3) (ft2) (ft)

4 0.09 1.00 5.00 1.00 39 5 26 26 6

10 0.55 1.00 5.00 1.00 245 33 164 164 14

12 0.79 1.00 5.00 1.00 352 47 236 236 17

2. Rupture Scenario

Nominal Time Pool Impact

Pipe Pipe to Pool Release Release Release Surface Distance

Diameter Area Velocity Shut-off Depth Rate Rate Volume Area for Pool

(in.) (ft2) (fps) (min) (ft) (gpm) (cfm) (ft3) (ft2) (ft)

4 0.09 5.00 5.00 1.00 196 26 131 131 13

10 0.55 5.00 5.00 1.00 1224 164 818 818 32

12 0.79 5.00 5.00 1.00 1762 236 1178 1178 39

Rev. 0


SCS Tracer Environmental Site Maps

APPENDIX C

SITE MAPS

Rev. 0


SCS Tracer Environmental Pipeline Maps

APPENDIX D

PIPELINE MAPS

PREPARED BY SCS TRACERMAY 2012GCS, NAD 83SOURCE: USGS, CASIL

MAPPED PIPELINED WITHIN 1,500 FT OF SITE (EXCLUDING EXXON-MOBIL LINES)

LAWNDALE, CA - PSHA±

0 1,750875Feet

LEGENDPROJECT SITE16IN. HIGH VOLUME WATER LINELACSD SEWER LINE12IN. CRIMSON CRUDE LINE1,500 FT. BUFFER

PREPARED BY SCS TRACERMAY 2012GCS, NAD 83SOURCE: USGS, CASIL

EXXON-MOBIL MAPPED PIPELINESLAWNDALE, CA - PSHA±

0 1,800900Feet

LEGENDPROJECT SITE6IN WET GAS LINEG-105: 4IN. CRUDE LINEG-105-1: 10IN. CRUDE LINEG-105-3: 4IN. CRUDE LINEMGL-4: 6IN. GAS LINE 1,500 FT. BUFFER

Rev. 0


SCS Tracer Environmental Wind Rose

APPENDIX E

WIND ROSE

WRPLOT View - Lakes Environmental Software

WIND ROSE PLOT:

Lennox Wind Rose (1981)

COMMENTS: COMPANY NAME:

MODELER:

DATE:

5/18/2012

PROJECT NO.:

NORTH

SOUTH

WEST EAST

7%

14%

21%

28%

35%

WIND SPEED

(m/s)

>= 5.0

4.0 - 5.0

3.0 - 4.0

2.0 - 3.0

1.0 - 2.0

0.0 - 1.0

Calms: 0.00%

TOTAL COUNT:

8760 hrs.

CALM WINDS:

0.00%

DATA PERIOD:

Start Date: 1/1/1981 - 00:00End Date: 12/31/1981 - 23:00

AVG. WIND SPEED:

1.82 m/s

DISPLAY:

Wind SpeedDirection (blowing from)

Station ID: 52118 Run ID:

Start Date: 1/1/1981 - 00:00

End Date: 12/31/1981 - 23:00

348.75-11.25

11.25-33.75

33.75-56.25

56.25-78.75

78.75-101.25

101.25-123.75

123.75-146.25

146.25-168.75

168.75-191.25

191.25-213.75

213.75-236.25

236.25-258.75

258.75-281.25

281.25-303.75

303.75-326.25

326.25-348.75

Frequency of Calm Winds: 0

Average Wind Speed: 1.82 m/s

Wind Direction (Blowing From) / Wind Speed (m/s)

Frequency Distribution

(Count)

0.0 - 1.0 1.0 - 2.0 2.0 - 3.0 3.0 - 4.0 4.0 - 5.0 >= 5.0 Total

Total

66 324

48 195

61 249

99 468

234 829

28 213

42 247

54 307

83 433

39 225

61 456

24 368

130 2599

47 938

73 688

31 221

1120

202 324

141 195

187 249

356 468

525 829

175 213

187 247

224 307

334 433

173 225

278 456

148 368

571 2599

283 938

401 688

163 221

4348

18 324

2 195

1 249

9 468

49 829

7 213

15 247

19 307

10 433

10 225

65 456

78 368

605 2599

270 938

133 688

9 221

1300

10 324

3 195

0 249

4 468

21 829

3 213

3 247

7 307

4 433

1 225

46 456

90 368

836 2599

217 938

59 688

6 221

1310

16 324

1 195

0 249

0 468

0 829

0 213

0 247

3 307

1 433

2 225

6 456

25 368

406 2599

89 938

20 688

8 221

577

12 324

0 195

0 249

0 468

0 829

0 213

0 247

0 307

1 433

0 225

0 456

3 368

51 2599

32 938

2 688

4 221

105 8760

WRPLOT View 7.4.0 - Lakes Environmental Software

Station ID: 52118 Run ID:

Start Date: 1/1/1981 - 00:00

End Date: 12/31/1981 - 23:00

348.75-11.25

11.25-33.75

33.75-56.25

56.25-78.75

78.75-101.25

101.25-123.75

123.75-146.25

146.25-168.75

168.75-191.25

191.25-213.75

213.75-236.25

236.25-258.75

258.75-281.25

281.25-303.75

303.75-326.25

326.25-348.75

Frequency of Calm Winds: 0.00%

Average Wind Speed: 1.82 m/s

Wind Direction (Blowing From) / Wind Speed (m/s)

Frequency Distribution

(Normalized)

0.0 - 1.0 1.0 - 2.0 2.0 - 3.0 3.0 - 4.0 4.0 - 5.0 >= 5.0 Total

Total

0.007534 0.036986

0.005479 0.022260

0.006963 0.028425

0.011301 0.053425

0.026712 0.094635

0.003196 0.024315

0.004795 0.028196

0.006164 0.035046

0.009475 0.049429

0.004452 0.025685

0.006963 0.052055

0.002740 0.042009

0.014840 0.296689

0.005365 0.107078

0.008333 0.078539

0.003539 0.025228

0.127854

0.023059 0.036986

0.016096 0.022260

0.021347 0.028425

0.040639 0.053425

0.059932 0.094635

0.019977 0.024315

0.021347 0.028196

0.025571 0.035046

0.038128 0.049429

0.019749 0.025685

0.031735 0.052055

0.016895 0.042009

0.065183 0.296689

0.032306 0.107078

0.045776 0.078539

0.018607 0.025228

0.496347

0.002055 0.036986

0.000228 0.022260

0.000114 0.028425

0.001027 0.053425

0.005594 0.094635

0.000799 0.024315

0.001712 0.028196

0.002169 0.035046

0.001142 0.049429

0.001142 0.025685

0.007420 0.052055

0.008904 0.042009

0.069064 0.296689

0.030822 0.107078

0.015183 0.078539

0.001027 0.025228

0.148402

0.001142 0.036986

0.000342 0.022260

0.000000 0.028425

0.000457 0.053425

0.002397 0.094635

0.000342 0.024315

0.000342 0.028196

0.000799 0.035046

0.000457 0.049429

0.000114 0.025685

0.005251 0.052055

0.010274 0.042009

0.095434 0.296689

0.024772 0.107078

0.006735 0.078539

0.000685 0.025228

0.149543

0.001826 0.036986

0.000114 0.022260

0.000000 0.028425

0.000000 0.053425

0.000000 0.094635

0.000000 0.024315

0.000000 0.028196

0.000342 0.035046

0.000114 0.049429

0.000228 0.025685

0.000685 0.052055

0.002854 0.042009

0.046347 0.296689

0.010160 0.107078

0.002283 0.078539

0.000913 0.025228

0.065868

0.001370 0.036986

0.000000 0.022260

0.000000 0.028425

0.000000 0.053425

0.000000 0.094635

0.000000 0.024315

0.000000 0.028196

0.000000 0.035046

0.000114 0.049429

0.000000 0.025685

0.000000 0.052055

0.000342 0.042009

0.005822 0.296689

0.003653 0.107078

0.000228 0.078539

0.000457 0.025228

0.011986 1.000000



0.0

12.8

49.6

14.8 15.0

6.6

1.20

5

10

15

20

25

30

35

40

45

50

55

60

%

Wind Class Frequency Distribution

Wind Class (m/s)Calms 0.0 - 1.0 1.0 - 2.0 2.0 - 3.0 3.0 - 4.0 4.0 - 5.0 >= 5.0

0.8

11.2

15.9

27.6

11.7

13.4

19.5

0

5

10

15

20

25

30

%

Stability Class Frequency Distribution

Stability ClassA B C D E F G

Rev. 0


SCS Tracer Environmental Data Collection

APPENDIX F

DATA COLLECTION

TABLE F-1 Pipeline Data Collection Summary

F-1

Agency /

Company

Contact Name Contact Phone Contact Email Communications Data Provided Data Not

Provided

So Cal Gas Co. (not applicable) (not applicable) (not applicable) 4/9/12: Accessed interactive map online Maps of pipelines

(transmission and

high pressure

distribution lines)

(not applicable)

National Pipeline

Mapping System

(not applicable) (not applicable) (not applicable) 4/10/12: Accessed interactive map online Operator contact

information

Locations of DOT-

regulated pipelines

Crimson Pipeline Alex Morales (562) 285-4102

AMorales@

crimsonpl.com 4/9/12: Voicemail inquiry regarding data

request

4/10/12: Email submittal of initial data

request

4/16/12: Follow-up email regarding data

request email

4/26/12: Follow-up voicemail

5/3/12: Email response from Crimson with

pipeline map attachments

5/10/12: Sent email requesting pipeline

operating pressures and ages

Maps of pipelines Operating

pressure

Pipeline age

ExxonMobil

Pipeline

David Kingston (310) 212-1768 david.j.kingston@e

xxonmobil.com 4/10/12: Voicemail inquiry regarding data

request

4/11/12: Email submittal of data request

4/12/12: Response email with instructions for

formal data request and mailed data request

5/4/12: Sent email to David regarding data

request update

5/4/12: Received response to data request

which included pipeline maps.

Maps and pipeline

statuses (idle)

(not applicable)

Golden State

Water Company

Michael S.

Thompson, P.E.

(810) 767-8200,

ext. 501

Michael.Thompson

@gswater.com 4/12/12: Requested data via telephone and

received pipeline maps via email.

4/25/12: Requested clarification on map

abbreviations for pipeline materials.

4/26/12: Received response to pipeline

Maps of pipelines

and operating

pressures

(not applicable)

mailto:[email protected]




TABLE F-1 Pipeline Data Collection Summary

F-2

Agency /

Company

Contact Name Contact Phone Contact Email Communications Data Provided Data Not

Provided

material request via email.

LA County

Sanitation

District

Jon Ganz (562) 699-5422 [email protected] 4/11/12: Accessed online pipeline map,

inquired about data request process via

telephone, and sent data request via fax.

4/20/12: Received hard copies in the mail

with pipeline locations

Maps of pipelines (not applicable)

California State

Fire Marshall

Lisa Dowdy (916) 445-8363

[email protected]

.gov 4/6/12: Submitted data request via fax

4/11/12: Received response via email that

included pipeline operator (Crimson) and size

of pipeline that exists within 1,500 feet of

project location.

Name of pipeline

operators within

1,500 feet of project

location

(not applicable)

Dept. of Oil, Gas

and Geothermal

Resources

(DOGGR)

Abdulraman

(AB)

Abdulmageed

(714) 816-7824

abdulmageed.abdul

raman@conservati

on.ca.gov

4/19/12: Requested locations of gathering

lines and other oilfield-related pipelines – was

instructed to access online database for well

statuses and to contact operators directly for

line locations.

List of wells (idle)

within the Lawndale

Oilfield

Location of wells

near the project site

(GIS data)

(not applicable)

Graner Oil

Company

Robert Graner (562) 424-0965 rob41@mindspring

.com 4/17/12: Requested gathering line locations

via telephone, submitted fax request and email

request.

4/18/12: Sent follow-up email regarding data

request.

Confirmed that there

are no active

gathering lines

operated by Graner.

Location of idle

lines.







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