Combustible Storage at Pump Stations – The Forgotten Danger – Understanding Storage Tank Management Requirements for Remote Sites

Combustible Storage at Pump Stations – The Forgotten Danger – Understanding Storage Tank Management Requirements for Remote Sites

March 31, 2011

David P. Horowitz, P.E., [email protected]

NEWWA - 2011 Spring Joint Regional Conference & Exhibition

Energy Policy Act of 2005

■ Underground Storage Tank Compliance Act of 2005

■ Reduce releases to environment

■ Focus on preventing releases

■ Expanded Leaking Underground Storage Tank (LUST) Trust Fund

■ Inspections, operator training, delivery prohibition, secondary containment and financial responsibility

The Big Picture

■ 611,500 USTs

■ 223,000 sites

■ 2/3 of active USTs are compliant

■ UST releases declining

The Big Picture

Region 1 Picture

MADEP Registry

MADEP Registry

■ Database Query “Pump Station” yields 57 hits (3 pages)

■ Database Query “Treatment Plant” yields 15 hits (1 page)

■ Database Query “Water Treatment” yields 21 hits (2 pages)

■ Database Query “Water Pollution” yields 9 hits (1 page)

Massachusetts

■ Over 11,000 Active USTs in MA

■ 527 CMR 9.0■ MA DEP Regulations■ 3rd Party Inspections

– Required by August 2009– Every 3 Years– Operational paperwork– Physical system inspection

Massachusetts

■ Underground Storage Tanks

– All single wall steel tanks shall be removed by August 7, 2017

– This does not apply to solely consumptive use tanks and tanks that were relined prior to August 8, 2007

– Relining is now prohibited

– Delivery prohibition (“Red Tag”)

– Established 3rd Party Inspection program

» Does not apply to solely consumptive use tanks

» All tanks inspected by August 8, 2010

Massachusetts

■ Consumptive Use

– “Fuel oil used exclusively for area heating and/or the heating of domestic water on premises where stored.”

■ Non-Consumptive Use

– Fleet fueling

» Gasoline

» Diesel

– Emergency generators

Massachusetts

■ 3rd Party Inspection Program

– Private, state, municipal and federal facilities

– Inspected every 3 years (no later than August 2010)

– DEP on July 1, 2009

– FP289

– Provides 3rd Party Inspector Certifications

» Qualifications

» Training provided by DFS

» http://www.mass.gov/dep/toxics/ust/tpilist.pdf

» 185 “Eligible” Inspectors

Massachusetts

Connecticut

■ 3,000 sites with 12,000 USTs in CT

■ 22a-449(d)-1 & 22a-449(d) 101-113

■ DEP Inspections– Required by August 2009– Every 3 Years– Unannounced– Operational paperwork– Physical system inspection

Inspection Overview

■ Facility Records

■ Spill Protection

■ Overfill Prevention

■ Tank Leak Detection

■ Piping Leak Detection

■ Corrosion Protection

Typical Deficiencies – 150+ USTs Inspected (No Retail)

Deficiency % Identified

Maintenance 91%

Financial Assurance 84%

Sump Monitoring 66%

Registration 61%

Overfill Prevention 38%

Cathodic Protection 18%

Double Wall Piping Issues 12%

Shear Valve 11%

‘Extra’ Vents 6%

Records Review

■ Pre-Inspection– Federal

» Financial Assurance– State

» DEP RegistryLocal

» Fire Department Permits» Registration

– Facility» Inventory Monitoring» Release Prevention

■ Inspection– Verify record documents match system

Financial Assurance

■ Use state financial assurance funds

■ Obtain insurance coverage■ Obtain a guarantee■ Obtain a surety bond■ Obtain a letter of credit■ Pass a financial test■ Set up a trust fund

■ Local, State & Feds = OK!

Spill Protection

■ Spill Bucket– Return product to tank– 3 gallon capacity

Overfill Prevention

Automatic Shut Off

Ball Float Vent

High Level Alarm

Tank Leak Detection

■ Interstitial Monitoring

■ Automatic Tank Gauging– Continuous In-Tank Leak Detection System (CLSD)

■ Manual Tank Gauging– ≤2,000 gallons

■ Statistical Inventory Reconciliation (SIR)– Vendor or approved in-house data analysis – 2 year tightness testing interval

■ Soil Vapor Monitoring– Site assessment

■ Groundwater Monitoring– Site assessment

Piping Leak Detection

■ Interstitial Monitoring

■ Automatic Line Leak Detectors (ALLD)

■ European Suction– Check valve immediately

beneath pump/dispenser

■ American Suction– Check valve at UST

■ Tightness Testing– 3 year interval

Corrosion Protection

■ Galvanic Protection– STI-P3– 3 Year NACE Inspection

» -0.850 Volt, soil to tank potential

■ Impressed Current– 60 day Operator Inspection– Annual NACE Inspection

■ Non-Metal Construction– Clad Steel Tanks– FRP

Inspection Shortfalls

■ Shear Valves

■ Vapor Recovery

■ Regulatory Confusion

Water in the Sump?

Operator Training - FUTURE

■ Required by August 8, 2012– Three classes of operator

■ Owner/Operator Inspections– Monthly– Semi-annual– Annual

Operator Training - FUTURE

■ Class A– Familiar with applicable statutes &

regulations as the specifically apply– Pass and exam– 2 Year refresher training

■ Class B– Familiar with applicable statutes &

regulations– Pass and exam– 2 Year refresher training

■ Class C– Familiar with response requirements– Trained by Class A

Thank You!