HomeMy WebLinkAboutFuel System Design and Wellhead Protection PlanCONCEPTUAL FUEL SYSTEM DESIGN AND WELLHEAD
PROTECTION PLAN
FOR
GetGo #3557 CARMEL‐146TH & GRAY
CITY OF CARMEL
HAMILTON COUNTY, INDIANA
GIANT EAGLE, INC.
101 KAPPA DRIVE
PITTSBURGH, PENNSYLVANIA 15238
(412) 963‐6200
Background & Executive Summary
The proposed development site is located within an approved five (5) year time of travel (TOT) wellhead
protection area (WHPA) belonging to the City of Carmel located over 8,000 feet from the nearest Carmel
municipal water supply system pumping well.
As the proposed use potentially could result in a release of petroleum products which would impact nearby
groundwater quality and potentially adversely impact the municipal water supply, Giant Eagle’s objective in
the design, specification, and construction of the fuel system is to incorporate appropriate safeguards to
minimize impacts and to protect The City of Carmel’s public water supplies. The following provides a
summary of the main aspects of the proposed product storage and distribution system together with site
storm water control and treatment.
Underground Storage Tank & Fuel System Design General Description
The proposed underground storage tank (UST) system will consist of one 30,000 gallon and two 6,000 gallon
double walled fiberglass tanks with a total proposed capacity of 42,000 gallons to be located north of the
proposed pump islands. The UST system design, construction, release detection, and operating requirements
will comply with all State and Federal requirements as contained in Indiana Administrative Code (IAC) 329 IAC
9, and the Code of Federal Regulations 40 CFR 280.
Although though the proposed site is not located within an approved one (1) year time of travel (TOT) to a
community public water supply system wellhead protection area, Giant Eagle’s fuel system will utilize
secondary containment in accordance with the more stringent UST system design requirements contained in
329 IAC 9‐2‐1.1 that are applicable to new UST systems placed within a 1‐year TOT area in order to reduce
likelihood of a product release impacting the public water supply.
This includes the use of double‐walled fiberglass tanks and piping systems with continuous interstitial space
monitoring and the utilization of OPW Loop system dispenser containment sumps.
Stormwater Control and Spill Containment
The proposed site design includes measures to manage and control stormwater in order to prevent infiltration
and impact to nearby groundwater. Site stormwater will be conveyed from the site via utilization of High Density
Polyethelene pipe (HDPE) water tight storm sewer piping and gaskets. Prior to discharge into the Carmel storm
drainage system and outfall, stormwater collected from the Site will be routed to an on‐site stormwater pre‐
treatment system consisting of primary and secondary filtering systems (an AquaShield AquaSwirl® or equivalent
stormwater hydrodynamic separator capturing up to 80% of Total Suspended Solids (TSS) from incoming
stormwater with an AquaFilter™ or equivalent stormwater filtration system for secondary filtration of finer
suspended solids and hydrocarbon products). The treated stormwater will then enter a lined detention pond with
controlled outlet prior to entering the Hamilton County regulated U.G. Mitchner Drain system. The lined
detention facility will serve as a catchment basin in the event of a large release. The petroleum catchment
volume of the pond will be large enough to containing the contents of an entire fuel tanker truck in the event of a
catastrophic worst‐case scenario instantaneous release. The detention pond outflow will incorporate a manually
actuated valve that can be used to hold a major petroleum spill until the released petroleum product can be
removed and disposed.
Station Operational Planning and Controls
The station will conduct product inventory control, monthly tank compliance testing and continuous interstitial tank
and line monitoring as part of its normal operations, including annual line, leak detector testing, and ATG
operational certification by a Third Party. On‐site staff will be certified to operate UST system monitoring
equipment and will receive specific spill prevention and release response training directed toward
wellhead protection. All suppliers of petroleum products will receive notification of the specific location of the
facility within a wellhead protection area and precautions to be exercised during product delivery. Signage
within the facility and at the dispenser islands will also be used to call attention to the need for extra care during
filling operations.
Summary
Although the proposed fuel station is planned to be constructed within the five year TOT, the location of the site is
more than 8,000 ft from the nearest Carmel supply well. This large separation distance provides a significant level of
protection as a result of the observed behavior of petroleum releases. Based on literature and historical
analysis of fuel petroleum releases over 95 percent of releases are contained within 1000 feet as such, Giant Eagle
believes the distance between the site and the Carmel wells, the system design and spill prevention counter
measures will provide significant protection to groundwater and to the Carmel water supply quality from potential
catastrophic releases of petroleum products from the proposed facility.
Based on the proposed conceptual UST and associated fuel system design, the proposed stormwater
controls, the planned operational and management activities, and the more than 8,000‐ foot distance from the
existing Carmel supply wells, Giant Eagle believes the proposed site can be safely developed and operated so as
not to threaten the City of Carmel’s water supply.
1.0 PROPOSED UST SYSTEM DESIGN PERFORMANCE STANDARD
1.1 UST DESIGN
1. Giant Eagle standard design incorporates the use of double‐wall fiber reinforced plastic (FRP) underground
storage tanks with an interstitial space. (Sheet FG301)
2. Giant Eagle standard design for underground tank monitoring incorporates the use of Veeder‐Root TLS‐450
and interstitial sensors that monitors the interstitial space of the double‐wall FRP tank for any leaks. If the
interstitial sensor detects liquid, the sensor will trigger an alarm at the Veeder‐Root console which is
continuously monitored remotely. (Sheet FG301, FG 302, FE2 and FE3)
1.2 PIPING
1. Giant Eagle standard design for underground product piping uses OPW Flexworks double‐wall flexible piping
with a secondary 4” corrugated flexible access (chase) pipe. (Sheet FG300)
2. Giant Eagle standard design for sump wall entry boot has a testing port which allows the testing of the
interstitial space between the double‐wall flexible product piping and the secondary access (chase) piping for
leaks. (Detail FG24 and FG 25 on Sheet FG304)
3. Giant Eagle standard design for underground product design utilizes the flexibility of OPW Flexworks flexible
piping design so that fittings are not required between the STP Sumps and the Dispensers. (Sheet FG300 and
FG304)
1.3 SPILL AND OVERFILL PROTECTION
1. Giant Eagle standard design for spill buckets incorporates the use of the OPW 1‐2100‐DEVR single‐wall spill
bucket. (Detail FG11 on Sheet FG302)
2. Giant Eagle standard design for overfill protection incorporates the use of the OPW 71SO Overfill Prevention
Valve. The 71SO is a vapor‐tight two‐stage shut‐off valve. When the liquid level rises to approximately 95% of
the tank capacity, the valve mechanism is released, closing automatically with the flow. This reduces the flow
rate through a bypass valve. The operator may then stop the filling process and disconnect and drain the
delivery hose. As long as the liquid exceeds the 95% level, the valve will close automatically each time delivery
is attempted. If the delivery is not stopped and the liquid rises to about 98% of the tank capacity, the bypass
valve closes completely. No additional liquids can flow into the tank until the level drops below the reset
point. (Detail FG11 on Sheet FG302)
3. Giant Eagle standard design for dispenser sumps incorporates the use of the OPW Loop system single wall
dispenser sump which is factory assembled and tested and includes dual sided entry fittings and double wall
pipe couplings. Giant Eagle standard for monitoring leaks in the sumps is incorporating Veeder‐Root liquid
sump sensor. If the sensor detects any liquid in the sump it triggers an alarm at the Veeder‐Root console.
(Sheet FG304 and FE3)
4. Giant Eagle standard design for the Emergency shut off valve incorporates the use of the OPW 10 Series
Double‐Poppet Shear Valve. In the event of a dispenser being hit, the top of the valve breaks off at the
integral shear groove, activating poppets and shutting off the flow of fuel and prevents release of fuel from
the dispenser’s internal piping. (Detail FG21, FG24 and FG25 on Sheet FG304)
5. Giant Eagle standard design for dispenser hose breakaway incorporates the use of OPW 66REC Dry
Reconnectable Breakaway. The duel valves seat automatically, stopping flow of fuel and limiting any fuel
spillage, while protecting the dispensing equipment. (Detail FG33 on Sheet FG305)
6. Giant Eagle standard design for the Emergency Fuel shut‐off system incorporates the placement of one E‐Stop
switch at the Cashier’s counter and one or more E‐Stop switches that are placed on‐site in locations that are a
minimum distance of 20 feet and a maximum distance of 100 feet from every dispenser. In an event that
requires the immediate shut down of all fueling operations, pressing down on the emergency fuel shut off
switch will shut down all fueling operations. (Sheet T1 and FE1)
1.4 UNDER‐DISPENSER CONTAINMENT
1. Giant Eagle standard design for dispenser sumps incorporates the use of the OPW Loop system single wall
dispenser sump which is factory installed and tested with dual sided entry fittings and double walled pipe
couplings to eliminate field penetrations. Giant Eagle standard for monitoring leaks in the sumps is
incorporating Veeder‐Root liquid sump sensor. If the sensor detects any liquid in the sump it triggers an alarm
at the Veeder‐Root console. (Sheet FG304 and FE3)
2.0 PROPOSED UST SYSTEM INSTALLATION, TESTING & MONITORING
2.1 UST System Installation
1. Giant Eagle utilizes fuel system Contractor(s) with extensive experience in installing retail gasoline UST
systems with all requisite state and local certifications.
2.2 UST System Testing
1. Giant Eagle standard is to have the fuel system tested for integrity after installation to meet the requirements
of state and federal regulations for UST systems prior to being placed into service.
2.3 UST System Monitoring
1. Giant Eagle standard design is to install tank excavation observation/monitoring wells at the lowest depth of
tank pit excavation. These wells will be tested on a semi‐annual basis for the presence of petroleum products
3.0 STORM WATER TREATMENT & MANAGEMENT PLAN
3.1 Storm Water Quality Management
Site stormwater will be conveyed from the site via utilization of High Density Polyethelene pipe (HDPE) water tight
storm sewer piping and gaskets. Prior to discharge into the Carmel storm drainage system and outfall, stormwater
collected from the Site will be routed to an on‐site stormwater pre‐treatment system consisting of primary and
secondary filtering systems (an AquaShield AquaSwirl® or equivalent stormwater hydrodynamic separator
capturing up to 80% of Total Suspended Solids (TSS) from incoming stormwater with an AquaFilter™ or equivalent
stormwater filtration system for secondary filtration of finer suspended solids and hydrocarbon products).
The treated stormwater will then enter a minimum 6 inch thick clay layer lined detention pond that will confine
and contain any dissolved petroleum products from migrating into the groundwater and natural soils. The treated
stormwater from the detention pond will ultimately be discharged into the Hamilton County regulated U.G.
Mitchner Drain system via a outlet control structure with a control valve.
The lined detention facility will serve as a catchment basin in the event of a large release. The petroleum
catchment volume of the pond will be large enough to containing the contents of an entire fuel tanker truck in the
event of a catastrophic worst‐case scenario release of product. The detention pond outflow will incorporate a
manually actuated valve that can be closed during a leak or spill to hold a major petroleum spill until the released
petroleum product can be removed and disposed.
4.0 UST SYSTEM OPERATION, MONITORING & MAINTENANCE PLAN
4.1 UST Operation
1. Giant Eagle on‐site staff will be certified to operate UST system in accordance with IDEM requirements.
2. Giant Eagle will notify all Suppliers of petroleum products of the specific location that the facility is located
within a wellhead protection area and the need for additional precautions to be exercised during product
delivery.
4.2 UST System Monitoring
1. Giant Eagle will conduct product inventory control, monthly tank compliance testing and continuous interstitial
tank and line monitoring as part of its normal operations, including annual line, leak detector testing, and ATG
operational certification by a certified Third Party at the station.
2. Giant Eagle on‐site staff will be certified to operate UST system monitoring equipment and will receive
specific spill prevention and release response training directed toward wellhead protection. On‐site
personnel will monitor the product inventory daily and interstitial space of the double‐wall tanks with the use
of the Veeder‐Root TLS 450 Tank Monitoring System.
3. Giant Eagle will incorporate semiannual sampling and testing of groundwater from the observation/test
monitoring wells installed with the tank excavation
4.3 Maintenance
1. Giant Eagle store personnel will ensure that trash will be removed from the site every day, landscaping and
lawn will be maintained and adequate lighting will be provided.
2. Giant Eagle will install informational signage within the facility and at the dispenser islands that will be used to
call attention to the facility being located near a drinking water wellhead protection area and the need for
additional care during filling operations.
3. Giant Eagle will implement a routine pavement maintenance plan to inspect and seal joints in the concrete
pavement. Copies of the inspection maintenance report can be made available for inspection upon request.
5.0 RELEASE RESPONSE & CONTINGENCY PLAN
1. Giant Eagle will utilize state‐of‐the‐art safety and control measures meeting or exceeding the State of Indiana
and Federal regulations for USTs installed within a WHPA.
2. Giant Eagle shall utilize the detention pond to serve as an additional catchment basin in the event of a large
catastrophic surface release of petroleum product.
3. Giant Eagle standard design of the Emergency Fuel Shut‐Off Switch operations is in the case of an emergency,
facility employees push the E‐Stop switch located in the vicinity of the cashier’s desk. The E‐Stop switch shuts
off all electrical power to the pumps connected to the USTs. Giant Eagle can incorporate the practice that in
the event that the E‐Stop switch does not function, the main power disconnect switch inside the station
convenience store be switched off.
4. Giant Eagle will utilize a protocol of store personnel and management to call spills to the attention of other
employees and obtain assistance in stopping and containing the spill using sorbents, booms, or other
material.
5. Giant Eagle will incorporate the practice of placing a “spill kit” on site to address minor leaks and spills. The kit
would include a 55‐gallon or larger drum, oil absorbent booms and pads, Oil‐Dri or other granular absorbent
material, and plastic sheeting. Station employees will be trained in the proper use of the “spill kit”. A minor
spill is defined as one that poses no significant harm or threat to human health and safety or the
environment. Response to leaks or spills over five gallons will be addressed by emergency response
contractor(s) and/or an environmental consultant certified by the Indiana Department of Environmental
Management to respond to major or catastrophic spills.
6. Giant Eagle will prepare a site specific emergency response plan with spill reporting procedures for this
location. The report will outline spill response and spill reporting procedures to be followed by station
employees in case of spill. Each employee should be made aware of the existence and location of the report
and its contents. New employees will receive orientation and instruction in spill response and reporting at the
time they begin work as well as annual employee review and instruction of the information contained in the
plan. Each employee, upon training and orientation of this plan, will sign and date the report review log
included as an attachment to the emergency prevention plan. A sample emergency response plan is attached
as an Appendix.
Appendix- A: GENERAL EMERGENCY SPILL RESPONSE PROCEDURE
For purposes of these procedures, a Spill is defined as a release of fuel involving 5 gallons or more of gasoline. All
Spills involving less than 5 gallons shall be cleaned up by the fuel attendant utilizing absorbent pads, oil dry, etc.
The saturated absorbent materials shall be stored in a fire-proof container and disposed of by a company authorized
to dispose of such substances.
WHEN A SPILL OCCURS, THE FIRST PRIORITY SHOULD BE TO SAFEGUARD LIFE AND
PROPERTY. AS QUICKLY AS POSSIBLE, THE EMPLOYEE SHOULD DETERMINE THE SOURCE
OF THE SPILL AND STOP THE FLOW OF FUEL.
In the event fuel is released in a Spill, the Fuel Station employee on duty shall begin immediate measures to contain
and clean up the Spill which include the following steps:
1. Shut off product supply immediately.
2. If there is no danger to personnel or customers, block the flow of the released product with oil dry,
booms, absorbent pads, etc., making every attempt to contain the fluid away from any storm sewer
or waterway.
3. Determine cause or source of release and the amount of product released.
4. If a spill has been determined to be greater than 5 gallons, or have entered a storm sewer, the local
Fire Department should be immediately called. Once on site, the fire department shall take control
of the site and supervise any emergency response actions that are required.
5. Keep the area clear of running engines and open flame.
6. Be ready with location of spill, telephone number where you can be reached, and details of the
spill.
7. Immediately call the Giant Eagle, Inc. Loss Prevention Department at (412) 963-2380. If a spill
occurs after 5pm, on a weekend or holiday, call the Loss Prevention Hotline at (412) 928-9555.
The Loss Prevention representative will make additional contacts as necessary to ensure any
Emergency Response Contractors, if needed, are notified. These contractors are indicated on the
Emergency Contacts/Notifications page of this plan.
Personnel at the corporate offices shall give required telephonic notice of the spill to the
appropriate governmental agencies in accordance with the attached regulations.
8. Giant Eagle, Inc. personnel will call an environmental consultant, as necessary, to evaluate and
perform clean up services. (List of environmental services contained in emergency contacts and
notification section.)
EMERGENCY CONTACTS AND NOTIFICATIONS
LOCAL ORGANIZATION
NAME
TELEPHONE
NUMBER
Police Carmel Police Department 911 or 317-571-2500
Fire Department Carmel Fire Department 911 or 317-571-2600
Medical Emergency Medical Service 911 or 317-571-2663
Hospital
LOCAL CHEMICAL RELEASE
AGENCIES
Emergency Response Team Hamilton County Emergency
Management
317- 770-3381
Emergency Response Team Carmel Hazardous Material
Operations
317-818-3400
Municipal Water & Sewer System City of Carmel Utilities 317-571-2442
STATE
Police Indiana State Police 800-582-8440
Emergency & Remedial Response IDHS-HAZMAT
800-669-7632
FEDERAL
U.S. Environmental Protection Agency Region 5 800-621-8431
EMERGENCY RESPONSE
CONTRACTOR
Environmental Contractor -TBD Office TBD
Environmental Contractor 24 hour-TBD 24 Contact TBD