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Sample Spill Prevention Control and Countermeasure Plan

Sample

Spill Prevention Control and Countermeasure Plan for Neverspill Oil Corporation

Clean City Bulk Storage Terminal
2000 Prevention Street
Clean City, California 90000

Original Date of Plan: January 1, 1972

Date of Last Plan Amendment/P.E. Certification: June 30, 1993

Date of Last Plan Review: January 1, 1996

Designated person accountable for spill prevention:

Kelly Neverspill, Facility Manager

Certification

I hereby certify that I have examined the facility, and being familiar with the provisions of 40 CFR Part 112, attest that this SPCC Plan has been prepared in accordance with good engineering practices.

Engineer: Robert Cleanwater

Signature: Robert Cleanwater, R.P.E.

Registration Number: 88888

State: California

Date: 6/30/93

Spill Prevention Control and Countermeasure

Compliance Inspection Plan

Review Page
In accordance with 40 CFR §112.5(b), a review and evaluation of this SPCC Plan is conducted at least once every three years. As a result of this review and evaluation, Neverspill Oil Corporation will amend the SPCC Plan within six months of the review to include more effective prevention and control technology if: (1) such technology will significantly reduce the likelihood of a spill event from the facility, and (2) if such technology has been field-proven at the time of review. Any amendment to the SPCC Plan shall be certified by a Professional Engineer within six months after a change in the facility design, construction, operation, or maintenance occurs which materially affects the facility's potential for the discharge of oil into or upon the navigable waters of the United States or adjoining shorelines.

Review Dates                     Signature           

1. January 1, 1975                Kelly Neverspill        
2. January 1, 1978                Kelly Neverspill            
3. January 1, 1981                Kelly Neverspill
4. January 1, 1984                Kelly Neverspill
5. January 1, 1987                Kelly Neverspill                   
6. January 1, 1990                Kelly Neverspill
7. January 1, 1993*              Kelly Neverspill
8. January 1, 1996                Kelly Neverspill

* SPCC Plan amended and certified by a Registered Professional Engineer per 40 CFR 112.3(d).

Management Approval

Neverspill Oil Corporation is committed to the prevention of discharges of oil to navigable waters and the environment, and maintains the highest standards for spill prevention control and countermeasures through regular review, updating and implementation of this Spill Prevention Control and Countermeasure Plan for the Clean City Bulk Storage Terminal.

Authorized Facility Representative: Kelly Neverspill
Signature: Kelly Neverspill
Title: Facility Manager

Table of Contents

2. Facility Contact(s).........................................1 
3. Facility Description .......................................1
     A. Facility Operations ...................................1 
     B. Facility Storage ......................................3 
     C. Distance to Navigable Waters, Adjoining Shorelines & Flow Path...3
4. Spill History ..............................................3 
5. Potential Spill Predictions, Volumes, Rates, and Control ...4 
6. Prevention Measures Provided ...............................6 
     A. Drainage Control ......................................6 
     B. Bulk Storage Tanks/Secondary Containment ..............8 
     C. Facility Transfer Operations ..........................12 
     D. Facility Tank Car and Truck Loading/Unloading Operations ...13 
     E. Inspections/Record Keeping ............................14 
     F. Site Security .........................................15 
     G. Personnel Training and Spill Prevention Procedures ....16
     H. Spill Control Equipment ...............................16

     I. Emergency Contacts ....................................17 


Figures

Figure 1 Facility Layout and Surfacee Drainage Diagram  ............................................2 

 Appendices 

Appendix 1 Secondary Containment Calculations for Diked Storage Areas

Appendix 2 Drainage Discharge Report Form

Appendix 3 Fuel Tank Inspection Report

Appendix 4 Weekly Facility Inspection Report and Checklist 
       
Appendix 5 Certification of the Applicability of the Substanitial Harm Criteria Cheklist

Appendix 6 SPCC Plan Checklist for Bulk Oil Storage and Production, Drilling, and Workover Facilities

Appendix 7 Sample Containment Volume Calculations


1.  Facility Owner (Parent Corporation) and Operator:

    A.  Address and Telephone: 
            Neverspill Oil Corporation 
            3000 Hitech Avenue 
            Goodfaith, Arizona 91111 
            (555) 123-4567 

    B.  Facility Operator, Address and Telephone:
           Neverspill Oil Corporation 
           Clean City Bulk Storage Terminal 
           2000 Prevention Street 
           Clean City, California 90000 
           (555) 123-4567 

2.  Facility Contact(s): 

Name                     Title                       Telephone

Kelly Neverspill       Facility Manager     (555) 123-4567 
John Neverspill        Plant Operator       (555) 123-4567

3. Facility Description: 

Note: The background information in this section is not required by 40 CFR Part 112. However, it is recommended that facility 
          background information be provided. 

   A. Facility Operations: 

Neverspill Oil Corporation, Clean City Bulk Storage Terminal, is a bulk storage terminal and cardlock facility for the distribution of oil, gasoline, and diesel to various commercial businesses. The facility receives products by common carrier via tanker truck. Products are stored in aboveground storage tanks (ASTs) and two double-walled underground storage tanks (USTs) and are delivered to customers by Neverspill Corporation trucks or by contractors. Hours of operation at the Clean City Bulk Storage Terminal are between 7 a.m. and 7 p.m., 6 days per week. Personnel at the Clean City Bulk Terminal include a facility manager, a plant operator, two bobtail truck drivers, a secretary/bookkeeper, and three operations and maintenance personnel.

Operations at this facility began in August 1952. At that time, operations consisted of the storage of motor oils in two aboveground tanks and drum storage. In 1960, operations expanded to include the storage of gasoline and diesel and the cardlock fuel island. In 1972, a slop tank and an oil/water separator were installed at the plant to collect and treat water collected in the gasoline and diesel storage tank area and catch basins. In 1993 a piping arrangement in storage tank Area A was modified and the USTs at the fuel island were removed and replaced with upgraded tanks. This SPCC Plan was amended within six months of the alterations and certified by a Registered Professional Engineer per 40 CFR 112.3(d).

Figure 1 Facility Layout and Surface Drainage Diagram

B. Facility Storage:

Aboveground Storage Tanks

Oil/Water Separator         3,000 gallons          Oil and Water

                                        (1,000-gal. compartments)

#1 Diesel                           20,000 gallons        Diesel

#2 No. 4 Fuel                     20,000 gallons         No. 4 Fuel

#3 Gasoline                        25,000 gallons         Unleaded Gasoline

#4 Gasoline                        25,000 gallons         Premium Gasoline

#5 Gasoline                        25,000 gallons         Unleaded Gasoline

#6 Motor Oil                      4,000 gallons             Motor Oil

#7 Motor Oil                      4,000 gallons             Motor Oil

#8 Slop Tank                      4,000 gallons             Oil and water

Underground Storage Tanks

Drums/Containers              Volume                      Contents

20 Drums                          55 gallons each          Brake Fluid

225 Drums                         55 gallons each         Motor Oil

Portable tank                     500 gallons                  Motor Oil

                                    Total: 140,975 gallons

C. Distance to Navigable Waters and Adjoining Shorelines and Flow Path:

The Neverspill Oil Corporation, Clean City Bulk Storage Terminal is located two miles southeast of Happy Creek. A storm drain, which empties to Happy Creek, is located on Prevention Street, 30 feet from the facility boundary.

4. Spill History [112.7(a)]:

5. Potential Spill Predictions, Volumes, Rates, and Control [112.7(b)]:

6. Prevention Measures Provided:

Drainage Control Diversionary Structures and Containment [112.7(c)]

A. Drainage Control [112.7(e)(1)(i-v)]:

(i) Drainage from diked storage areas:

At Neverspill Oil Corporation, all operating areas are predesigned with secondary containment structures.

Storage Area A, which includes Tank Nos. 1, 2, 3, 4, 5, 8 and the oil/water separator drains to a sump which is located inside of the containment area. The contents of the sump are inspected for product which would suggest an equipment leak and then manually pumped to the slop tank, Tank No. 8. The contents of Tank No. 8 are manually pumped to the oil/water separator. Water from the oil/water separator is discharged to the Clean City Sanitation District (CCSD) after it is inspected for oil contamination.

Rainwater which collects in Area B, which contains Tank Nos. 6 and 7, flows to a sump in the northwest corner of the containment area. Rainwater in Area B is drained through a manual gate valve after a careful examination for oil has been conducted and documented by the plant operator.

The fuel island is covered with a roof and is designed with a containment curb and two drains which lead to a catchment basin. This catchment basin is hard piped to the slop tank in Area A.

The tanker truck loading/unloading rack area is designed with curbing and a catchment basin for drainage and secondary containment. After a rainfall, the contents of the catchment basin are manually pumped to the slop tank.

The truck loading and unloading dock area at the warehouse is covered with a roof and is designed with a containment curb. If rainwater collects in this area, it will collect in the catchment basin at the base of the dock. If necessary, water can be removed by a portable pump and then transferred to the slop tank.

(ii) Valves used on diked area storage:









Area A is not equipped with a valve for drainage. Area B is equipped with a normally closed and locked manual gate valve.

(iii) Plant drainage systems from undiked areas:











There are no undiked operating areas at Neverspill Oil Corporation. All operating areas are designed with localized secondary containment systems.

(iv) Final discharge of drainage:







This section is not applicable to this facility. All operating areas are engineered with localized secondary containment.

(v) Facility Drainage Systems and Equipment:
















Water in the slop tank is manually emptied to the oil/water separator. Water from the oil/water separator is pumped to the Clean County Sanitation District's (CCSD) sewer system and publicly owned treatment works (POTW) after a careful examination for contamination. Neverspill Oil Corporation maintains regular discharge reports with the CCSD. The oil in the oil/water separator is pumped out when necessary by a contractor. If the oil/water separator system were to malfunction, the system would be shut down and no discharges would be allowed. Facility personnel are instructed to transfer volumes of oil contaminated water from the slop tank which are less than the capacity of the main compartment of the oil/water separator (1,000 gallons).

B. Bulk Storage Tanks/Secondary Containment [112.7(e)(2)(i-xi)]:

(i) Tank compatibility with its contents:











The ASTs are constructed of welded steel in accordance with API Standards 620 and 651 and are compatible with the contents that they hold.

(ii) Diked area construction and containment volume for storage tanks:















The diked containment areas are surrounded by concrete filled, rebar steel reinforced, cement block walls which are 2.5 feet high. The dike wall is sufficiently impervious to contain spilled oil. Secondary containment for the diked areas is large enough to hold the entire contents of the tank plus sufficient freeboard to allow for precipitation. Appendix 1 provides secondary containment calculations for these areas.

(iii) Diked area, inspection and drainage of rainwater:


















Area A drainage does not flow into a storm drain or an effluent discharge system that empties into navigable waters. Rainwater which collects in Area B flows to a sump in the northwest corner of the containment area. Area B is drained through a manually opened gate valve after a careful examination for oil has been conducted and documented by the plant operator. The plant operator notes the appearance of the water and the time when the valve is opened; and after drainage of Area B is completed, the plant operator closes and locks the valve and notes the time of closure in the drainage discharge report. Appendix 2 includes a drainage discharge report form.

If an oil sheen is observed in Area B, then the contaminated water will be pumped to the slop tank in Area A and not discharged through the drainage valve.

(iv) Corrosion protection of buried metallic storage tanks:








The USTs at the Clean City Bulk Storage Terminal are a double-walled system consisting of an inner steel tank surrounded by a fiberglass outer tank and interstitial monitoring. In-tank probes maintain tank inventory and identify leaks.

(v) Corrosion protection of partially buried metallic tanks:








There are no partially buried tanks at Neverspill Oil Corporation.

(vi) Aboveground tank periodic integrity testing:















Every ten years, or more often when necessary based on visual inspection or monitoring results, the ASTs are drained, cleaned, inspected, and painted. Formal inspections are conducted weekly to examine the exterior of the tanks and the containment areas. These inspections are documented using the report form which can be found in Appendix 3.

(vii) Control of leakage through internal heating coils:













Tank #2 is equipped with internal heating coils. The pressure of the heating system is monitored and controlled. The exhaust lines from the heating coils do not discharge to an open water course. Any exhaust drains to and is contained within the diked area.

(viii) Tank installation fail-safe engineered:

All tanks at Neverspill Oil Corporation are equipped with visual gauges. Filling procedures call for tanks to be filled to a safe fill height which is designated to be 90% of the tank capacity. Each tank and the oil/water separator are equipped with high-level alarms. These alarms, which include high-level alarms at 92% and high-high level alarms at 95%, are inspected once every four weeks during the weekly facility inspection.

(ix) Observation of disposal facilities for effluent discharge:











Water in the oil/water separator is inspected prior to discharge to the sewer system. If the system malfunctions, then it will be shut down, and a contractor will be contacted to remove the contents of the slop tank as needed.

(x) Visible oil leak corrections from tank seams and gaskets:







Visible oil leaks are reported to the plant operator and fixed immediately. Any spilled oil is cleaned up immediately.

(xi) Appropriate position of mobile or portable oil storage tanks:









Portable tanks and drums are located inside of a covered warehouse. The east side and west side entrances to the warehouse are designed with grated trenches, which run the length of the entrances, to control spills from leaving the warehouse. This area is large enough to contain the contents of the largest container stored in the warehouse.

C. Facility Transfer Operations [112.7(e)(3)(i-v)]:

(i) Buried piping installation protection and examination:












All underground piping is wrapped and cathodically protected. Underground pipelines run between Area A and the fuel island.

(ii) Not-in-service and standby service terminal connections:







Terminal connections are blank flanged or capped when not in service.

(iii) Pipe supports design:







Pipe supports are constructed of steel and concrete and are designed to minimize abrasion and corrosion and allow for expansion and contraction.

(iv) Aboveground valve and pipeline examination:










With the exception of the buried piping described in section (i), all piping at Neverspill is aboveground. Aboveground pipelines and valves are examined during the weekly inspection. These inspections are documented (see Attachment 4). Valves and pipelines are also observed continuously by operations personnel.

(v) Aboveground piping protection from vehicular traffic:












Some aboveground piping is located within the secondary containment areas and is not at risk for impact from vehicular traffic. Other aboveground piping is protected by bumper poles.

D. Facility Tank Car and Truck Loading/Unloading Operations [112.7(e)(4)(i-iv)]:

(i) Loading/unloading procedures meet DOT regulations:










Neverspill Oil Corporation requires all drivers to comply with DOT regulations in 49 CFR Part 177 and facility standard operating procedures. All drivers must be authorized and certified by Neverspill Oil Corporation to load or unload product. Truck loading and unloading procedures are posted at the loading and unloading rack and dock area.

(ii) Secondary containment for vehicles adequate:











The tanker truck loading and unloading area is designed with curbing and a catchment basin. This system is large enough to hold the maximum capacity of any single compartment of a tanker truck loaded or unloaded at the plant (3,000 gallons).

The fuel island is designed with curbing and two drains which empty to a catchment basin. The secondary containment of this area is large enough to hold the maximum capacity of any single tank of any truck fueled at this island (3,000 gallons).

The truck loading and unloading dock area is designed with curbing and a catchment basin for secondary containment. In this area, 55-gallon drums are filled with product from bobtail trucks. The containment in this area is large enough to hold a single compartment (1,000 gallons) of a bobtail truck loaded or unloaded at the facility. Bobtails which are parked at the facility behind the warehouse never contain product.

(iii) Warning or barrier system for vehicles:











Warning signs are posted at the loading/unloading rack and dock and at the fuel island to prevent vehicular departure before complete disconnect of flexible or fixed transfer line. A trained Neverspill employee is present to observe each loading/unloading and fueling operation.

(iv) Vehicles examined for lowermost drainage outlets before leaving:







Warning signs are posted at the loading/unloading rack and dock and at the fuel island to remind drivers to examine drain outlets prior to departure. A trained Neverspill employee is present to observe each loading/unloading and fueling operation.

E. Inspections/Record Keeping [112.7(e)(8)]:

Facility inspection procedures: Formal facility inspections are conducted weekly and records of these inspections are documented and signed by the inspector or plant manager. During the weekly inspections, all tanks, containment structures, valves, pipelines, and other equipment are inspected. Every four weeks, high-level alarms and other spill-prevention devices are inspected during the weekly inspection. The checklist used for these inspections can be found in Appendix 4.

Length of time records kept:

Inspection, training, and tank integrity testing records are retained for three or more years.


F. Site Security [112.7(e)(9)(i-v)]:

(i) Fencing:







The entire facility is enclosed by razor wire fencing and secured gates.

(ii) Flow valves locked:








All tank and containment area valves are closed and locked at 7 p.m. every day.

(iii) Starter controls locked:







Starter controls are located within a secure area of the facility office with visual contact to loading areas.

(iv) Pipeline loading/unloading connections securely capped:








Pipeline connections are securely capped or blank-flanged when they are not in use.

(v) Lighting adequate to detect spills:










Lights illuminate the AST storage area, the fuel island, and the loading/unloading rack area. Lighting is adequate to detect spills during nighttime hours and prevent vandalism.

G. Personnel Training and Spill Prevention Procedures [112.7(e)(10)(i-iii)]:

(i) Personnel instructions:








All new hires are required to have an 8-hour spill prevention training which includes a complete review of Neverspill Oil Corporation's SPCC Plan. Employees are also instructed and tested on the job. Once a year, refresher training and deployment exercises for spill response are conducted.

(ii) Designated person accountable for spill prevention:







Ms. Kelly Neverspill is the designated person accountable for spill prevention at Neverspill Oil Corporation.

(iii) Spill prevention briefings:









During monthly safety briefings, spill prevention is discussed. Sign-in sheets, which include the topics of discussion at each meeting, are maintained for documentation.

H. Spill Control Equipment:

Spill control equipment on site includes absorbent pads and booms, granular absorbent, empty drums, brooms, and shovels. Spill equipment is stored inside a cabinet in the warehouse.

I. Emergency Contacts

National Response Center:
1-800-424-8802

Kelly Neverspill, Facility Manager
(555) 123-4567
Pager (555) 111-1111

John Neverspill, Plant Operator
(555) 123-4567
Pager (555) 222-2222

Joe Sopitup, Cleanup Contractor, Inc.
(555) 765-4321
Pager (555) 333-3333

Appendix 1

Secondary Containment Calculations for Diked Storage Areas

Containment Calculation Area A

1) Minimum containment volume = (volume of single largest tank + 10% to allow for precipitation) x 0.1337 cubic feet/gallon (25,000 gal + 10%) x 0.1337 cubic feet = 3,676.8 cubic feet.

2) Total Dike Area:

60 feet x 70 feet = 4,200 square feet

= 3.14 x (8² + 8² + 7² + 6² + 5²)

= 3.14 x 238 square feet

= 747.3 square feet

4) Available Dike Area = (Total Dike Area) - (Total Area of Tanks)

= 4,200 square feet - 747.3 square feet

= 3,452.7 square feet

5) Available Dike Volume

Height of Dike Wall = 1.07 feet

Dike Volume = Dike Area x Dike Height

Dike Volume = 3,452.7 square feet x 2 feet = 6,904.4 cubic feet

6) Dike Volume of 6,904.4 cubic feet (51,644.9 gallons) is greater than the minimum containment volume of 3,676.8 cubic feet (27,502.5 gallons).

Containment Calculation Area B

1) Minimum containment volume = (volume of single largest tank + 10% to allow for precipitation) x 0.1337 cubic feet/gallon (4,000 gal + 10%) x 0.1337 cubic feet = 588.3 cubic feet.

2) Total Dike Area:

12 feet x 42 feet = 504 square feet

3) Total Area of Tanks = 3.14 x (½ diameter of each tank)² (within containment with the exception of the single largest tank)

= 3.14 x (5)²

= 78.5 square feet

4) Available Dike Area = (Total Dike Area) - (Total Area of Tanks)

= 504 square feet - 78.5 square feet

= 425.5 square feet

5) Available Dike Volume

Height of Dike Wall = 1.4 feet

Dike Volume = Dike Area x Dike Height

Dike Volume = 425.5 square feet x 1.4 feet =595.7 cubic feet

6) Dike Volume of 595.7 cubic feet (4,455.8 gallons) is greater than the minimum containment volume of 588.3 cubic feet (4,400.5 gallons).

Appendix 2
Drainage Discharge Report Form Area B Containment and Oil/Water Separator System

Appendix 3

Fuel Tank Inspection Report

AST Inspection Report

Date

Location Liquid Level

Tank No. Temp.

Capacity Diameter Height

1. Weather Stripping or Flashing

a. Are all pieces tight against shell?

b. Are any pieces missing or (Photo No. ) require repairs?

How many?

2. Hoses & Piping

a. General appearance of hoses

b. Any leaks? If so, explain

c. Aboveground piping free of leaks?

3. Roof Ladder

a. Does ladder appear to roll easily or need repairs?

4. Contamination

a. Is roof free of oil and water? If not, indicate percent coverage of each liquid and depth at worst location on attached drawing.

5. Corrosion Control

a. Note general appearance of paint on shell, roof, ladder and structural members:

b. Is rusting or pitting occurring on any of the above?

If yes, explain where and if repairs are needed immediately. c. Are all insulating flange washers and sleeves in place?

If missing, cracked, or broken, explain where and repairs needed:

d. Are all ground and/or anode straps in place?

If missing or damaged, indicate location on drawing and explain repairs needed:

6. Are high-level alarms functioning properly? Tested to verify?

7. Other Observations

a. Note anything that might affect smooth movement of roof and any problem that would allow escape of vapors or air pollution:

8. Show any damaged areas or problem areas (on tanks with floating roof, show location and size of any gaps in seal) on attached drawing.

9. Remote and side gauges working

Fuel Tank Inspection Report

Appendix 4

Weekly Facility Inspection Report and Checklist

Weekly Facility Inspection Checklist

Appendix 5
Certification of the Applicability of the Substantial Harm Criteria Checklist

Certification of the Applicability

of the Substantial Harm Criteria Checklist

Facility Name: Neverspill Oil Corporation, Clean City Bulk Storage Terminal

Facility Address: 2000 Prevention Street

Clean City, CA 90000

1. Does the facility transfer oil over water to or from vessels and does the facility have a total oil storage capacity greater than or equal to 42,000 gallons?

Yes No X

2. Does the facility have a total oil storage capacity greater than or equal to 1 million gallons and does the facility lack secondary containment that is sufficiently large to contain the capacity of the largest aboveground oil storage tank plus sufficient freeboard to allow for precipitation within any aboveground oil storage tank area?

Yes No X

3. Does the facility have a total oil storage capacity greater than or equal to 1 million gallons and is the facility located at a distance (as calculated using the formula in Attachment C-III, Appendix C, 40 CFR 112 or a comparable formula⁽¹⁾) such that a discharge from the facility could cause injury to fish and wildlife and sensitive environments? For further description of fish and wildlife and sensitive environments, see Appendices I, II, and III to DOC/NOAA's "Guidance for Facility and Vessel Response Environments" (Section 10, Appendix E, 40 CFR 112 for availability) and the applicable Area Contingency Plan.

Yes No X

4. Does the facility have a total oil storage capacity greater than or equal to 1 million gallons and is the facility located at a distance (as calculated using the appropriate formula (Attachment C-III, Appendix C, 40 CFR 112 or a comparable formula¹) such that a discharge from the facility would shut down a public drinking water intake⁽²⁾?

Yes No X

5. Does the facility have a total oil storage capacity greater than or equal to 1 million gallons and has the facility experienced a reportable oil spill in an amount greater than or equal to 10,000 gallons within the last 5 years?

Yes No X

Certification

I certify under penalty of law that I have personally examined and am familiar with the information submitted in this document, and that based on my inquiry of those individuals responsible for obtaining this information, I believe that the submitted information is true, accurate, and complete.

Kelly Neverspill Kelly Neverspill

Name (please type or print) Signature

Facility Manager 08/01/94

Title Date

from 40 CFR 112 Appendix C, Attachment C-II

Appendix 6

SPCC Plan Checklist for Bulk Oil Storage

and Production, Drilling, and Workover Facilities

SPCC Plan Checklist for Bulk Oil Storage Facilities

I. Operator and Owner Addresses and Phone Nos.

II. Day-to-day Operations and Facility Background

III. Receiving Water/Probable Flow Paths (e.g., facility storm drain, street storm drain, WWTP outfall,

overland to river or stream, flood control pond)

IV. Copy of SPCC Plan/Site Diagrams

__ Certification of engineer: 112.3 (d).

__ Reviewed within past three years: 112.5(b).

__ Full approval of appropriate level management: 112.7.

V. SPCC Measures

112.7(e)(1) Facility drainage:

____i) Dike drainage via valves or manually controlled pumps.

____ii) No flapper-type drain valves on diked areas. Dike drain valves manual control.

____iii) Undiked area drains to catch basin.

____iv) If no drain prep as above. Diversion system to return oil.

____v) If drainage water not moved by gravity flow, then redundant lift pump setup.

112.7(e)(2) Bulk storage tanks:

____i) Material and construction compatible with contents.

____ii) Secondary containment for largest tank + precipitation, and

____ dikes sufficiently impervious to spilled oil.

____ or trench enclosure draining to catch basin.

iii) Rainwater drainage (into a storm drain or water course) bypassing in plant treatment okay if:

____ bypass valve normally sealed closed, and

____ inspection and compliance with water quality standards, and

____ valve opened under responsible supervision, and

____ records kept of drainage events.

____iv) Buried tanks protected against corrosion/regular pressure testing.

____v) Partially buried tanks protected against corrosion.

____vi) Surface tanks integrity tested via hydrostatic, visual inspection, or nondestructive shell thickness methods.

Construction of tanks base adequate.

____vii) Internal heating coils are closed loop or treated and monitored.

____viii) Fail-safe engineering on all tanks, new and old, via high liquid level alarms or high liquid level pump cutoff

devices, or audible/code warning, and

____ regular testing of liquid level sensors.

____ix) Water discharge facilities inspected regularly (NPDES).

____x) Visible leaks on tanks and piping corrected (Protocol).

____xi) Secondary containment for largest portable storage tank.

____ Portable tank area free from periodic flooding or washout.

112.7(e)(3) Facility transfer operations:

____i) Buried piping protected against corrosion.

____ii) Out-of-service pipes capped with origin marked.

____iii) Pipe supports minimize abrasion, corrosion, sagging.

____iv) Regular inspection of surface pipe and valves.

____ Regular pressure testing for pipes with no secondary containment.

____v) Signs to warn vehicles about piping.

112.7(e)(4) Facility loading/unloading rack:

____i) Follow DOT procedures for loading/unloading tank cars and tank trucks.

____ii) Secondary containment for largest vehicle compartment (or quick drainage system).

____iii) Prevention of early vehicle departure via warning signs, physical barriers, or interlocked warning light.

____iv) Vehicles examined for leakage at all outlets prior to departure.

112.7(e)(5)(ii) Oil production facility (onshore) drainage:

____(A) Dike valves at tank batteries closed except during rainwater drainage. Drainage meets:

____ (e)(2)(iii)(B) inspection and compliance with water quality standards, and

____ (e)(2)(iii)(C) valve opened under responsible supervision, and

____ (e)(2)(iii)(D) records kept of drainage events.

____(B) Drainage ditches, oil traps, sumps, and skimmers checked regularly for oil, and oil removed.

112.7(e)(5)(iii) Oil production facility (onshore) bulk storage tanks:

____(A) Material and construction compatible with contents.

____(B) Secondary containment for largest tank if feasible, or alternate, such as in

____ (c)(1)dikes, curbing, culverting, gutters, weirs, booms, diversions or retention ponds, sorbent materials, and

____ Undiked area drains to catch basin.

____(C) Periodic scheduled visual examination of tanks, including aboveground foundation and supports.

____(D) Fail-safe engineering on all age tanks via adequate capacity, overflow equalizing lines, vacuum protection,

and/or high level alarms.

112.7(e)(5)(iv) Oil production facility (onshore) facility transfer operations:

____(A) Periodic scheduled visual examination of valves and pipelines.

____(B) Frequent examination of salt water disposal facilities.

____(C) Flowline maintenance to include periodic examinations, corrosion protection, and records.

112.7(e)(6) Oil drilling and workover facilities (onshore):

____(i) Location

____(ii) Diversion

____(iii) BOP

112.7(e)(8) Inspections and records:

____ Written procedures records kept for three years of inspections and,

____ Records (inspections, discharges, training, briefings) kept for three years.

112.7(e)(9) Security:

____(i) Fully fenced.

____ Gates locked when plant unattended.

____(ii) Master flow and drain valves of tanks locked closed.

____(iii) Starter control locked "off" or located where only the authorized have access.

____(iv) Out-of-service pipelines capped or blank-flanged.

____(v) Lighting adequate for night spill detection and deterring vandals.

112.7(e)(10) Personnel, training and spill prevention procedures:

____(i) Personnel instructed in equipment operation and oil regulations.

____(ii) One person accountable for spill prevention.

____(iii) Owner/operator schedules regular briefings.

____ 112.20(e) Applicability of Substantial Harm Criteria Checklist Completed.

Appendix 7

Sample Containment Volume Calculations

Sample Containment Volume Calculations

1. Example of Design: Vertical Tanks Only

Assumptions:

length = 50 ft.

width = 30 ft.

Required Containment Volume:

110% of single largest tank

8500 gallons x 1.1 = 9350 gallons

1. Minimum Containment Volume (cu. ft.)

= Required Containment Volume x 0.1337 cu. ft./gal. conversion factor

= 9350 gals. x 0.1337 cu. ft./gal. = 1250 cu. ft.

2. Total Diked Area = 30 ft. x 50 ft. = 1500 sq. ft.

3. Total Area of Vertical Tanks (within the containment)

= 3.14 x (½ diameter all but the largest tank)²

= 3.14 x [(½ x 6)² + (½ x 4)²]

= 3.14 x 13 sq. ft. = 40.82 sq. ft.

4. Available Diked Area = (Total Diked Area) - (Total Area of Tanks)

= (1500 sq. ft.) - (41 sq. ft.) = 1459 sq. ft.

Therefore:

Height of Dike Walls (h) = (Minimum Containment Volume) ÷ (Available Diked Area)

= (1250 cu. ft.) ÷ (1459 sq. ft.)

= .86 ft. or 10.3 inches

In this example, the containment wall must be at least 10.3 inches in height to provide the required containment capacity at this facility.

NOTE: In the following two examples, the assumption is made that the horizontally mounted tanks do not significantly impinge on available containment volume, typically because they are mounted on an elevated support. If the support system is fairly massive, the amount of volume it displaces should be taken into account.

2. Example of Design: Horizontal Tanks Only

Assumptions:

length = 45 ft.

width = 30 ft.

Required Containment Volume:

110% of single largest tank

= 15,000 gallons x 1.1 = 16,500 gallons

1. Minimum Containment Volume (cu. ft.)

= Required Containment Volume x 0.1337 cu. ft./gal. conversion factor

= 16,500 gals. x 0.1337 cu. ft./gal. = 2206 cu. ft.

2. Available Diked Area = 30 ft. x 45 ft. = 1350 sq. ft.

Therefore:

Height of Dike Walls (h) = (Minimum Containment Volume) ÷ (Available Diked Area)

= 2206 cu. ft. ÷ 1350 sq. ft.

= 1.634 ft. or 19.6 inches

3. Example of Design: Horizontal and Vertical Tanks

Assumptions:

length = 75 ft.

width = 30 ft.

sufficient freeboard = 6 in.

Required Containment Volume:

Entire contents of largest tank plus sufficient freeboard allowance for precipitation.

1. Minimum Containment Volume (cu. ft.)

= Required Containment Volume x 0.1337 cu. ft./gal. conversion factor

= 20,000 gals. x 0.1337 cu. ft./gal. = 2674 cu. ft.

2. Total Diked Area = 30 ft. x 75 ft. = 2250 sq. ft.

Observe that the vertical tanks stand below the dike wall height.

This volume displaced by the second 20,000-gallon tank (and any additional verticals assumed not ruptured) must be considered.

3. Total Area of Vertical Tanks

(within the containment) = 3.14 x (½ diameter of all but the largest tank)²

= 3.14 x (½ x 10.5 ft.)²

= 86.5 sq. ft.

4. Available Diked Area = (Total Diked Area) - (Total Area of Tanks)

= (2250 sq. ft.) - (86.5 sq. ft.) = 2163.5 sq. ft.

Therefore:

Height of Dike Walls (h) = [(Minimum Containment Volume) ÷ (Available Diked Area)]

+ Sufficient Freeboard

= [(2674 sq. ft.) ÷ (2163.5 sq. ft.)] + 6 inches

= [1.24 ft. or 14.8 inches] + 6 inches = 20.8 inches

Height of Dike Walls = 21 inches, approximately.

4. Example of Design: Vertical Tanks - Irregular Containment

Assumptions:

Containment -

Length = 75 ft

Width = 30 ft

Height = 2.25 ft

Raised slab -

Length = 71 ft

Width = 26 ft

Height = 1 ft

Required Containment Volume:

Entire contents of largest tank plus 10% (to allow for sufficient freeboard for precipitation)

Available Containment:

(containment length x width x height) minus (raised slab length x width x height)

1. Minimum Containment Volume (cu. ft.)

= Required Containment Volume x 0.1337 cu. ft./gal. conversion factor

= 20,000 gals. x 0.1337 cu. ft./gal. = 2,674 cu. ft. + 10% = 2,941.4 cu. ft.

2. Total Volume of Diked Area = (30 ft. x 75 ft. x 2.25 ft.) - (26 ft. x 71 ft. x 1 ft) = 3,216.5 cu. ft.

4. Example of Design: Vertical Tanks - Irregular Containment (continued)

Observe that the vertical tanks stand below the dike wall height.

This volume displaced by the second 20,000-gallon tank (and any additional verticals assumed not ruptured) must be considered. In this case the raised 1 foot high slab also decreases the amount of total diked area significantly and should be considered.

3. Total Volume of Vertical Tanks

(within the containment) = 3.14 x (½ diameter of all but the largest tank)²

x height of tank within the containment

= 3.14 x (½ x 10.5 ft.)² x 1.25 ft.

= 108.18 cu. ft.

4. Available Volume of Diked Area

= (Total Volume of Diked Area) - (Total Volume of Tanks Within Containment)

= (3,216.5 cu. ft.) - (108.18 cu. ft.) = 3,108.32 cu. ft.

Therefore:

Available volume of the diked area is sufficient to contain the volume of the largest tank plus sufficient freeboard allowance (~10% of the largest tank volume)

Minimum Containment Volume = 2,941.4 cu. ft.

Available Volume of Diked Area = 3,108.32 cu. ft.

1. If a comparable formula is used, documentation of the reliability and analytical soundness of the comparable formula must be attached to this form.

2. For the purposes of 40 CFR Part 112, public drinking water intakes are analogous to public water systems as described at 40 CFR 143.2(c).

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