SOUTHCROSS EMERGENCY NUMBER: 1-877-880-9022

PLEASE SHARE THIS INFORMATION WITH OTHERS

Important Safety Information Regarding

Pipelines in Your Community

southcrossenergy.com

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Dear Neighbor,Every day, a long and extensive network of buried and aboveground pipelines transport crude oil, natural gas, and other petroleum products from areas of production to consumers. The end result is all around us – pipelines deliver products that heat our homes, fuel cars, trucks, and planes, supply power generation facilities, and support manufacturing and production processes.According to the U.S. Department of Transportation, pipelines are the safest, most efficient, and economic method for this delivery. However, they still pose risks. Pipeline safety is a collective responsibility. You are receiving this brochure because you live or work within 660 feet of a pipeline. Our goal is to help you:

t Identify pipeline markers and facilities

t Prevent damage to pipelines

t Recognize signs of a pipeline leak

t Respond accordingly in the event of a pipeline-related emergency

After reading this brochure, if you have general questions or concerns, please contact Southcross Energy at 1-877-880-9022 or safety@southcrossenergy.com.

About Southcross EnergySouthcross Energy (Southcross) provides natural gas gathering, processing, treating, compression, and transportation services, and natural gas liquids (NGLs) fractionation and transportation services. It also sources, purchases, and sells natural gas and NGLs. Its assets are located in South Texas and include gas processing plants, fractionation plants, sour gas treating facilities and over 2,000 miles of pipeline.

Southcross is headquartered in Houston, Texas. Visit southcrossenergy.com for additional information.

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Southcross Energy Partners, LLC

2103 CityWest Blvd., Suite 900 Houston, Texas 77042 southcrossenergy.com

General Questions and Emergency Phone Number: 1-877-880-9022

eMail:safety@southcrossenergy.com

General Resources: safeexcavator.com phmsa.dot.gov pipeline101.com texas811.org

National Pipeline Mapping System:* npms.phmsa.dot.gov

*Only includes information on transmission pipelines

© Southcross Energy, LLC and Sander Resources, L.L.C. 2020

NATURALGAS PIPELINE

SOUTHCROSS ENERGY1-877-880-9022

BEFORE DIGGING CALL OR IN AN EMERGENCY CALL

How to Identify Where Pipelines are Located

POISON GAS

CALL BEFORE EXCAVATING OR IN AN EMERGENCY

Te x S t a r M i d s t r e a m1-877-880-9022

1-800-DIG-TESS

1-800-DIG-TESS

NATURALGAS PIPELINE

SOUTHCROSS ENERGY1-877-880-9022

BEFORE DIGGING CALL OR IN AN EMERGENCY CALL

“WARNING,” “DANGER,” OR “CAUTION”

THE EMERGENCY PHONE NUMBER TO REACH THE PIPELINE COMPANY

THE MATERIAL BEING TRANSPORTEDEthane Gas • Natural Gas Condensate • Poison Gas NGL • Propane • Isobutane Normal Butane • Gasoline

THE NAME OF THE PIPELINE COMPANYSouthcross EnergyTexStar Midstream

S O U T H C R O S S E N E R G Y. C O M 3

PIPELINE MARKERSPipeline markers are used to designate the general route of a pipeline. Markers are found where a pipeline crosses a street, railroad or waterway, as well as areas where a pipeline emerges from the ground.

BE AWARE... Pipeline markers do not identify the exact location, depth or number of pipelines in an area, nor do they represent a straight line between adjacent markers.

Pipeline Markers Come in Different Shapes and Sizes, But Will Always Indicate:

*One call centers are state organizations that coordinate 811 calls. Please be advised that one call requirements vary from state to state.

Visit safeexcavator.com for additional information. 5 Simple Steps for Safe Digging:

Southcross uses a variety of tools to ensure the integrity of our pipeline systems. These may include:

Pipeline Safety

1. Contact your state’s one call center* by calling 811 before you want to dig. This call and service are free and required by law.

2. Wait for underground facility owners (including pipeline companies) to mark the area using paint, flags, and/or stakes.

3. Confirm that all facilities have been marked. If you know or suspect that facilities have not been properly marked, you must make another 811 call before digging.

4. If you plan to dig on or within a Southcross right-of-way, you must call and request that a company representative be present prior to starting excavation. If digging within two feet of a pipeline, hand digging is required by Southcross.

5. Always use caution near underground facilities; obey safe digging practices and state law.

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Excavation (or digging) is the leading cause of damage to underground facilities, including pipelines. Before you dig, drill, blast, or move any ground near a pipeline, contact your local one call center by dialing 811 to help prevent this type of damage. This FREE service will notify operators of underground utilities who will mark their facilities. This is required by law, and can save your life.

Building structures around existing

pipelines should be carefully planned in order to minimize interference with

underground facilities.

Planning Examples of Excavation Include:

t Building, or adding to a homet Installing a barn, shed, deck,

fence, or mailbox t Pouring a drivewayt Landscaping – planting a tree

or garden, or removing tree roots

t Digging trenches or a wellt Laying foundation, or adding a

sprinkler system, or poolt Additional activities that

involve digging or moving dirt

Involve Southcross, as well as other underground facility operators, for early feedback regarding a potential project by contacting 811 as early as possible in the planning and development process.

t Designing and building the pipe to meet or exceed minimum standardst Monitoring the pressure and volume of the material transported within the pipeline

to detect leaks or other warning signs of abnormal operationst Cleaning the inside of the pipe to remove liquidst Using protective coatings, corrosion inhibitors, and cathodic protection (a low-

voltage electrical current running over the pipeline) to protect the steel from corrosion

t Conducting patrols of the right-of-way to look for encroachments (continuing trespass), obstruction, or signs of excavation activity

t Supporting ongoing training and qualification programs for employees who maintain the pipeline, as well as related facilities

Southcross uses a variety of tools to ensure the integrity of our pipeline systems. These may include:

S O U T H C R O S S E N E R G Y. C O M 5

Transmission pipeline operators are required to develop and maintain an Integrity Management Program (IMP) to help ensure the safety of the pipeline. Each IMP is unique to the operator and pipeline, and seeks to identify the potential risks posed to the pipeline in different operating conditions.

Southcross has implemented an IMP to ensure compliance with regulations from the Pipeline and Hazardous Materials Safety Administration (PHMSA). It looks for areas that would be particularly sensitive to a pipeline release, and then assesses, validates and, if necessary, repairs those segments.

For more information please call 1-877-880-9022.

If You See Something... SAY

SOMETHING!

If you become aware of

any suspicious activity or behavior occurring along a pipeline right-of-

way, please contact

Southcross.

Pipeline Maintenance and Safety

PIPELINE

48 hours after notifying the one call center

(not including weekends or state or federal holidays)

Markings valid for 14 days as long as they are

clearly visible.

18” plus half the diameter of the pipeline from the outside edge

of the pipe.

Texas Railroad Commission

rrc.state.tx.us

Texas811texas811.org

STATE ONE CALL EXCAVATION TOLERANCE AGENCY SYSTEM MAY BEGIN ZONE

Please note that a call to 811 is also required before starting to hydrovac. Tolerance zone guidelines vary by state. Please be sure to verify the most current state-specific tolerance zone guidelines by contacting your state agency.

TexasONE CALL REQUIREMENTS NOTIFICATION

Report Any DamageIf you damage a pipeline in any way, you must stop digging and report it to the pipeline company immediately. The information must also be reported within two hours to the one call center. Any damage to a pipeline, even if it appears to be minor – including a gouge, scrape, or dent – could potentially harm the integrity of the pipeline and cause a future rupture or leak.If a pipeline is damaged during excavation activities, and materials are released, immediately call 911 from a safe location and provide all known details.

Right of Way

Pipelines are located in areas called a “Right of Way” or “easement.” The right to operate a pipeline is secured through an

“easement agreement” between the property owner and the pipeline operator.

Before starting any sort of home-improvement project that involves excavation,

or when you begin planning construction activity in areas located on or near a pipeline Right of Way, please contact Southcross to make sure the activity

does not place you or our pipeline at risk.

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Facility operators must be re-contacted (a second one call) and underground lines must be re-marked if:t Markings are unclear or get damaged during the excavationt An “all clear” or “no conflict” has not been given by the facility operatorst There is a conflict – for instance, a previously unmarked facility is located

despite an “all clear” message from operators t Excavation activity is not complete prior to the one call ticket expiration

– to prevent this, make another 811 call 48 hours prior to expiration of the first ticket

48” TOTAL

6” PIPELINE

SAMPLE OF TOLERANCE ZONE

IN TEXAS

ONE CALL REQUIREMENTS NOTIFICATION

Right of WaySecond One Call

S O U T H C R O S S E N E R G Y. C O M 7

Tolerance Zones in TexasThe immediate area surrounding a pipeline is known as the “tolerance zone.” The area provides for the width of an underground utility, such as a pipeline, plus an additional buffer on both sides when excavation activity occurs nearby.

FOR GENERAL QUESTIONS AND IN AN EMERGENCY: 1-877-880-9022

18” 18”3” 3”

As a result of measures taken by Southcross and other pipeline companies to prevent pipeline leaks, unplanned releases are rare. The consequences of a pipeline release will vary depending on the product being transported, the amount of product released, and the area where the incident occurs. Be aware that some pipelines transport products that may be harmful if inhaled, may cause eye and skin irritation or may result in difficulty breathing. You should be aware of health hazards and potentially flammable or explosive conditions or situations that may result in injury or loss of life.

About H2S or Poison GasNatural gas transported by Southcross can contain naturally occurring hydrogen sulfide (H2S). In these instances, it is referred to as “poison gas.” With an odor like rotten eggs or a lit match, H2S is a colorless, toxic and corrosive contaminant that poses an immediate danger and can be fatal even with low levels of exposure. Pipelines transporting material containing H2S will be designated with special markers that identify the presence of H2S.

If you suspect a release has occurred, use your senses:

• Persistent bubbling in standing water • Dead or discolored vegetation • A dense cloud or fog that looks like smoke • Slight mist of ice or unexplained frozen ground near

a pipeline during warmer weather • A petroleum sheen on the surface of standing

water • Fire or explosion

• An odor similar to rotten eggs*, gasoline, petrochemicals, petroleum liquids, or a recently lit match

• An unusual roaring, hissing, or gurgling sound • An explosion

*Note: Natural gas is naturally odorless. Only certain pipeline systems may be odorized.

• Abandon any equipment in its current state • Leave the area on foot immediately in an

upwind/crosswind direction • Warn others to stay away

• Use a cell phone or land-line phone • Start a car or drive into the leak while

leaving the area • Light a cigarette or create any sources of

ignition such as heat or a spark • Touch any escaping liquid or gas • Attempt to turn any pipeline valves • Trytoextinguishorcontrolafire

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When you reach a safe place, call 911 and then the Southcross Emergency Number: 1-877-880-9022

Do You See?

Do You Smell?

Do You Hear?

DO:

DONOT:

Pipeline Leak Recognition & Response

EMERGENCY CALL 877-880-9022

IT IS A VIOLATION OF LAW TO REMOVE THIS SIGN

BEFORE EXCAVATING OR IN AN