PRODUCT LINE LEAK DETECTION

Katie SeabornAMERICAN CONTAINMENT SERVICES,

INC.®

Annual GTEC Underground Storage Tank Management & Compliance

Seminar - 2014

Angle Check Valve

OR Foot Check Valve

SUCTION PUMP

Under Pump Check Valve

UST

1. Common Method

Product Pipe

2. Safe-Suction Method

Suction Systems

SUCTION SYSTEM Leak Detection Requirements:

For COMMON systems (one is required):

Product Pipe Tightness Test Every 3 Years Monthly Interstitial Monitoring Monthly Groundwater OR Vapor Monitoring Monthly Statistical Inventory Reconciliation

For SAFE-SUCTION systems (all are required):

Piping must slope back to the tank. Only one check valve, and it must be

installed as close as practical to the pump. The above must be verifiable.

Dispenser

Shear Valve

UST

Product Pipe

Submerged Turbine

Pump

Pump Motor

Pump Head

Pressurized Systems

Must be equipped with an automatic line leak detector which must be tested annually, AND use one of the following:

Annual Line Tightness Testing Monthly Vapor Monitoring Monthly Groundwater Monitoring Monthly Interstitial Monitoring Monthly SIR

PRESSURIZED SYSTEM Leak Detection Requirements:

Federal EPA Requirements for Automatic Line Leak Detectors (LLDs):

Can detect a 3-gallon per hour leak, at a line pressure of 10-psi, within 1 hour.

When a leak is detected, LLDs must shut off the product flow, restrict the product flow, or trigger an audible or visual alarm.

Must have a Third Party Certification.

More PRESSURIZED SYSTEM Leak Detection Requirements:

No leaks at the STP or leak detector

No reduced flow

No liquids in secondary containment

No alarms on electronic monitoring devices

Recommended PRESSURIZED SYSTEM Leak Detection

Checklists:

Monthly

Annually

Leak Detector Functionality Test

Product Line Tightness Testing

Visual Inspection of all accessible piping, fittings, and secondary

containment

ATG System Inspection and Functionality Test

(Electronic Sump Sensor)

FE Petro MLLD

Mechanical Pressurized Line Leak Detectors (MLLDs)

Red Jacket MLLD

Electronic Pressurized Line Leak Detectors (PLLDs)

Incon PLLD’s

V/R PLLD’s

Electronic Line Leak Test

Report

(Wireless PLLD)

POP QUIZ!What kind of system is it, and what is required?

Common Suction Method

Safe-Suction Method Pressurized

Line PTT Every 3-yrs, ORInterstitial Monitoring, OR

Stat. Inv. Reconciliation

No Leak Detection Required for the

Product Piping

PUMP

UST

PUMP

UST

PUMP

UST

Annual LD Test AND Annual Line PTT, OR

Interstice Monitoring, OR Stat. Inv. Reconciliation

POP QUIZ!... continued What kind of system is it, and what is required?

Annual Line PTT OR Stat. Inv. Reconciliation

AND Interstice Monitoring

(if piping is double wall)

UST

GRAVITY/SIPHON

SOLENOID VALVE

POP QUIZ!... (last question)

What kind of system is it, and what is required?

COMING SOON: Annual Line PTT OR

Stat. Inv. Reconciliation AND Interstice Monitoring

(if piping is double wall)

UST

PUMP

EMERGENCY POWER

GENERATOR

SOLENOID VALVES

CURRENTLY: No leak detection required. Emergency Power

Generator Systems are deferred from 40 CFR Part

280 Subpart D.

GRAVITY/SIPHON

Examples of what not to do…

… what is leak

detection really all about?

At the end of

the day….

Any questions?Photograph courtesy of albertshaler.buzznet.com

Photograph courtesy of Mike Moreland Photography