SECTION IV – FACILITY DESIGN (STORAGE) A. … storage devices at AES ... types of waste received, ... Section IV, Facility Design (Storage) December 29, 2006 “Third Version”

Asbury Environmental Services – Chico Standardized Permit Application – Section IV, Facility Design (Storage) December 29, 2006 “Third Version”

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SECTION IV – FACILITY DESIGN (STORAGE) A. STORAGE AREAS FOR DRUMS / CONTAINERS / TANKS / OTHER

DEVICES

1. The current Facility Design for the Asbury Environmental Services – Chico (AES – Chico) facility consists of one tank farm storage area, one drum storage area, and one truck loading and unloading area.

a) The tank farm storage area consists of:

• An area measured as 36’6” x 17’5 ½”. • One 10,000-gallon, steel, horizontal, above-ground tank,

which are 8 feet in diameter and 27 feet 4 inches long • One 1,000-gallon, steel, horizontal, above-ground tank,

which is 4 feet in diameter and 12 feet 3 inches long • One 500-gallon, steel, horizontal, above-ground tank which

is 4 feet in diameter and 6 feet long

The AES - Chico tanks are staged in a parallel setting. See Appendix IV-A, Figure IV-A-2 Transfer Area Site Plan for tank farm storage details.

b) The drum storage area consist of:

• An area measured as 7’6” x 10’ 5.5”. • Area which may contain up to 8 x 55 gallon drums or any

size drums not to exceed 440 gallon total capacity.

See Appendix IV-A, Figure IV-A-2 Transfer Area Site Plan for drum storage details. c) The current truck loading and unloading area consist of:

• An area measured as 15’4” x 38’4” • An area which may contain up to a single 6,500 gallon tank

truck used for unloading the tanks.

See Appendix IV-A, Figure IV-A-2 Transfer Area Site Plan for current loading and unloading area details. d) The future truck loading and unloading area consist of:

• An area measured as 15’4” x 78’4” • An area which may contain up to a single 6,500 gallon tank

truck used for unloading the tanks.


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See Appendix IV-A, Figure IV-A-2a Transfer Area Site Plan (Future Containment Slab Extension) for future loading and unloading area details.

2. The AES - Chico tank farm storage and transfer area total

dimensions are approximately 638.8 sq ft. The tank farm area measures 36’6” x 17’5 ½ ”, the drum storage area measures 7’6” x 11’10”, and the truck loading and unloading area measures 15’4” x 38’4”. The height of the tank farm containment wall is 40 inches around the perimeter, the drum storage area containment berm is a 6-inch curb that is 9 ½ inches high, and the truck Loading and Unloading area containment berm is a 6-inch curb that is 5 inches high.

3. AES - Chico tank farm storage area consist of two above ground

tanks and one Public Recycling Do-It-Yourself (DIY) above ground tank. The DIY tank may change service to a permitted waste antifreeze tank.

The drum storage area generally consists of 8 x 55-gallon DOT approved containers, but may contain any size drums not to exceed 440 gallon total capacity. See Appendix IV-A, Figure IV-A-2 for container storage detail.

4. AES - Chico storage devices are:

Tanks:

- 1 x 10,000 gallon steel, above ground, horizontal tank - 1 x 1,000 gallon steel, above ground, horizontal tank - 1 x 500 gallon steel, above ground, horizontal tank

Non-Bulk Containers:

- 85-gallon drum, metal or poly - 55-gallon drum, metal or poly - 30-gallon drum, metal or poly - 5-gallon pails, metal or poly

5. AES - Chico may occasionally stack empty non-bulk storage

containers within the drum storage area. When stacking the empty non-bulk storage containers, the empty containers will not be stacked more than two containers high. If containers are stacked two


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containers high all containers will be stacked so that the weight and placement of the top stacked containers do not compromise the stability or integrity of the bottom containers. Containers are not stacked on top of containers that do not have a flat or level surface, are unstable, or do not have the strength to withstand the weight of the top container. Within the drum storage area, a minimum amount of aisle space (30”) between rows of non-bulk containers is maintained at all times. See Appendix IV-A, Maps, Figure IV-A-2, Transfer Area Site Plan.

6. All wastes generated by AES - Chico and the wastes associated with types of waste received by AES - Chico are compatible with carbon steel and polyethylene which is the material of construction of the drums. Used Oil/waste oil, waste antifreeze (glycol), and oily water do not cause any negative reactions with carbon steel or polyethylene and serves to protect it from corrosion. The waste materials held in these containers are deemed compatible by the container manufacturers. All non-bulk containers containing regulated hazardous wastes at AES - Chico meet 49 CFR, Department of Transportation (DOT) requirements. Tanks are not required to comply with DOT requirements. All tanks are constructed of carbon steel, which is resistant to the types of wastes being stored (oil, antifreeze, and water) and are certified by an independent qualified, California registered engineer.

7. All storage devices at AES - Chico are kept outside. Non-Bulk containers are elevated using a drum pallet, which elevate the containers from the ground surface. All of the non-bulk metal containers are protected from the weather with paint and are inspected weekly for any signs of deterioration.

All tanks sit on tank saddles, which elevate the tanks from the ground surface. All of the metal tanks are protected from the weather with paint and are inspected daily for any signs of deterioration.

8. Liners are not used in any of the storage devices holding hazardous waste.


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9. Shipping and receiving logs are used to track the movements of AES

- Chico’s waste in and waste out activities. In addition, a daily tank inventory is performed each day when the facility is operated.

10. All wastes generated by AES - Chico and the wastes associated with types of waste received, transferred, and stored by AES - Chico are mutually compatible with one another. All containers are marked or labeled with the name of the waste that is being stored within that container so that only the same waste type is transferred and stored in that container.

11. All non-bulk containers are inspected on a weekly basis for signs of damage such as leaking containers or deterioration of containers and the containment system caused by corrosion, weather, or other factors. If a damaged container is discovered, it will promptly be pumped into an appropriate storage tank, transferred to a DOT approved container, or overpacked in conformance with 49 CFR 173.3. All containers are kept closed during storage except when waste is added or removed.

All hazardous waste tanks, their foundations, their seismic protection, and associated equipment are visually inspected daily, when the facility is operated, for signs of damage or leakage. This inspection also includes the pipes, pumps, and valves attached to the tanks. During this inspection, the secondary containment area is visually inspected for signs of deterioration, including concrete cracks and gaps. A copy of the AES - Chico inspection sheet is included in Section VII, Inspection Plan, Appendix VII-A.

Regular scheduled drivers assigned to the AES-Chico facility are responsible to perform the daily and weekly inspection. The AES-Chico Facility Manager, located at the Asbury Environmental Service - Dixon facility, is responsible to assure that the inspections are performed, complete, reviewed, and file appropriately.


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B. HAZARDOUS WASTES STORED

The table below provides the name and describes the physical properties of each hazardous waste that is or will be stored in each area. Tank Farm Storage and Drum Storage Area: Common waste / chemical name(s)

Waste Oil / Used Oil

Oily Water Spent Antifreeze

Oily Solids

Storage Location Tank Farm Tank Farm

Tank Farm Drum Storage Unit

EPA and/or California hazardous waste number(s)

221, 612 223 133,134, 135, 612

223, 352

Specific gravity

< 1 (0.84–0.96)

0.997 – 1.1

1.0 – 1.2 > 1.1

Vapor pressure, if applicable

<0.53 psi 0.9 psi 0.38 psi N/A

Organic Vapor pressure, if applicable

0.0008 psi or 0.0055 kPa

0.00003 psi

0.00001 psi N/A

500 ppm Volatile Organic (VO)Threshold

VO = 1,516 ppm

VO = 18 ppm

VO = 8 ppm

N/A

Flame point/auto-ignition temperature, if applicable

>140° F >200° F >200° F >200° F

pH > 2 - < 12.5 > 2 - < 12.5

> 2 - < 12.5 3 - 12

Color

Yellow/ Brown/ or Black

Grayish or brownish

Greenish Brownish / Black

C. STORAGE DEVICE / EQUIPMENT DESCRIPTION

List all devices/equipment to be used in each storage area, including containers, totes, bags, tanks, reactors, vats, etc. Tank 1 Tank 2 Tank 3 Drums Storage Location

Tank Farm

Tank Farm

Tank Farm

Drum Storage Area

External dimensions

8 Ft Diameter

4 Ft Diameter

4 Ft Diameter

Various Sizes depending on


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in feet and inches

27.4 ft long

12.3 ft long

6 ft long

the drum volume

Internal design capacity in gallons

10,800

1,000

500

Various Sizes 85 gallon, 55 gallon,

30 gallon, 5 gallon,

Maximum Operating capacity in gallons

10,000

1,000

500

Various Volume

depending on the drum size 5 gallons to 85 gallons

Age of each tank

Unknown, Existing Tank Est.24yrs.



N/A Per DOT

Spec.

Coated or lined

Not lined, Tank has exterior

paint coating


paint coating


paint coating

Not lined, Drums have exterior paint

coating

Minimum Allowable Thickness (inches)

0.216

0.100

0.055

N/A Per DOT

Spec.

Minimum Measured Thickness (inches)

0.220

0.125

0.070

N/A Per DOT

Spec.

D. SECONDARY CONTAINMENT SYSTEM FOR STORAGE AREAS

The certifications, by an independent professional engineer, for the secondary containment system where liquid wastes are stored are found in Appendix IV-B, Secondary Containment Certification. Subsection G.2 contains the details for the tank secondary containment system certification and Subsection G.3 contains the details for the Container secondary containment system certification.


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E. STORAGE OF IGNITABLE, CORROSIVE, OR REACTIVE HAZARDOUS

WASTE

1. The AES - Chico facility does not transfer or store ignitable, corrosive or reactive wastes.

2. All wastes generated by AES - Chico and the wastes associated with

types of waste received, transferred, and stored by AES - Chico are mutually compatible with one another. As an added precaution, AES - Chico requires all trucks to be grounded, using grounding cables, during loading and off-loading transfer operations.

F. SPECIFIED AIR EMISSIONS CONTROLS

Air emission standards for tanks and containers regulations do not apply at AES - Chico since AES - Chico does not treat, store or dispose of RCRA hazardous waste in tanks or containers and the types of hazardous waste stored at the facility have low vapor pressure.

G. ENGINEER’S CERTIFICATION

1. Engineering Certification of Tank Integrity

The engineering certification of Tank Integrity, located in Appendix IV-C, verify that the tanks used to store hazardous wastes at AES - Chico have been adequately designed for this service. Eichleay Engineers Inc. of California, an independent, qualified professional engineer registered in the State of California has prepared tank integrity certifications. The tank integrity certifications includes and addresses the following:

a. Tanks shall have sufficient shell strength to assure that they do

not collapse or rupture. This shall be verified by sonic testing to determine the actual shell thickness of each tank. Actual thicknesses shall be compared to the calculated minimum shell thickness based on operating temperature, pressure, and specific gravities of fluids stored:

The AES - Chico tanks have sufficient shell strength to assure that they do not collapse or rupture. The shell strength was


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verified by ultrasonic testing to determine the actual shell thickness of each tank. The actual thickness was compared to the calculated minimum shell thickness based on operating temperature, pressure, and specific gravities of fluids stored.

Tank 1 minimum shell thickness per Eichleay Engineering tank assessment summary is .220”. Tomac Ultrasonic (UT) findings indicate UT readings on the shell were .220” to .250” and the heads are from .230” to .250”. See Appendix IV-C, Tank Certification, Structural Calculations, Above Ground Tank Assessment, Tank Assessment Summary T-1 and Tomac Ultrasonic (UT)Technique Report Form A1-3.

Tank 2 minimum shell thickness per Eichleay Engineering tank assessment summary is .125”. Tomac Ultrasonic (UT) findings indicate UT readings on the shell were .125” to .130” and the heads are from .130” to .250”. See Appendix IV-C, Tank Certification, Structural Calculations, Above Ground Tank Assessment, Tank Assessment Summary T-2 and Tomac Ultrasonic (UT)Technique Report Form A1-7.

Tank 3 minimum shell thickness per Eichleay Engineering tank assessment summary is .070”. Tomac Ultrasonic (UT) findings indicate UT readings on the shell were .070” to .080” and the heads are from .070” to .080”. See Appendix IV-C,Tank Certification, Structural Calculations, Above Ground Tank Assessment, Tank Assessment Summary T-3 and Tomac Ultrasonic (UT)Technique Report Form A1-11.

b. A statement that the tank material of construction is compatible

with the hazardous waste contents:

Certification is provided by an independent, qualified professional engineer registered in the State of California indicating that the tank material of construction is compatible with the hazardous waste(s) to be transferred and stored. See Appendix IV-C, Tank Certification, Structural Calculations, Above Ground Tank Assessment, page 1, second paragraph.

c. Description of tank system piping (materials of construction,

pipe diameter):

The material of construction for the AES - Chico tank system piping is schedule 40 carbon steel 3" pipe for transferring waste


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from the tank, and schedule 40 carbon steel 2" pipe for transferring waste into the tank.

The length of schedule 40 carbon steel 3" pipe for transferring waste from tank 1 is 12’. The length of schedule 40 carbon steel 3" pipe for transferring waste from tank 2 is 3’. The length of schedule 40 carbon steel 3" pipe for transferring waste from tank 3 is 3’.

The length of schedule 40 carbon steel 2" pipe for transferring waste into tank 1 is 12’5”. The length of schedule 40 carbon steel 2" pipe for transferring waste into tank 2 is 3’. Tank 3 does not have any piping attached to the tank for transferring waste into tank 3. All waste is manually poured into an opening located on top of the tank.

Piping diagram is shown in Appendix IV-A, Maps, Figure IV-A-2, Transfer Area Site Plan.

d. Description of any internal or external pumps:

The AES - Chico tanks do not have internal pumps. AES used the pumps on the trucks to transfer wastes to and from tanks.

e. Description of design standard(s), if available, according to

which tank and ancillary equipment were constructed:

API 579 has been used for recent analysis of the tanks, since no information is available regarding the original design standards to which the tanks were constructed. Equipment design standards (i.e. gauges) are per manufacturing product specifications.

f. Description of any spill prevention or overfill equipment:

Spill prevention and overfill for Tanks 1 and 2 is manually verified by AES - Chico using a sight level gauge.

To prevent overfill, prior to transferring waste from the truck into the tank the Asbury Environmental Service driver/operator will check the shipping and receiving logs, tank logs and visually inspect and verify the tank volume by using a sight level gauge. If the tank has appropriate capacity to contain the volume within


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the truck the waste will be transferred, if the tank does not have the appropriate capacity available to contain the volume within the truck the waste is not transferred.

g. Description of any corrosion Protection Measures:

The external tank shells are painted. Paint is used as a corrosion protection measure for the tanks.

h. Description of any structural damage or inadequate construction such as cracks punctures or damaged fittings. All shall be documented in the assessment and remedied before the tank system is certified for use:

All descriptions (external and internal) of any structural damage or inadequate construction such as cracks punctures or damaged fittings have been documented in the assessment. Review of the Ultrasonic Testing revealed no significant corrosion. Results of internal inspection resulted in finding the tanks in good condition with no measurable corrosion or pitting. No remedial action is required. The AES - Chico tank system has been certified for use. See Appendix IV-C, Attachment 1, 653 Tank Inspection Reports by Tomac dated 1/19/03 for T-1, T-2, & T-3.

i. Description of any leak detection equipment:

Visual inspection is used to detect leak, since all tanks sit above-ground on tank saddles, all tanks are elevated above the foundation.

j. Information on the documented age of the tank system.

Estimated remaining service life based on findings:

The age of the tanks 1 and 2 is estimated to be 24 years. However, the corrosion rate will be used in consideration in the Fitness for Service determination. Tank shell thickness results using Ultrasonic testing will be used to determine the corrosion rate of the tank. Ultrasonic testing will be performed every 5 years until a corrosion rate has been determined. Results from each testing year will be compared to the previous year to determine the rate of corrosion.


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k. Leak test report that verifies current tank and attachments integrity:

Tank 1 and Tank 2 have been in constant service since 1991 and are inspected daily; there is no evidence of leakage on or around the tank or tank attachments. Tank shell thickness results using Ultrasonic testing will be used to determine the corrosion rate of the tanks. AES-Chico will schedule Ultrasonic testing to be performed every 5 years until a corrosion rate has been determined. Results from each testing year will be compared to the previous year to determine the rate of corrosion. AES-Chico performed Ultrasonic testing in 2003. Ultrasonic Testing results are located in Appendix IV-C, Tank Certification, Structural Calculations, Above Ground Tank Assessment.

l. The certification by the independent engineer shall be written in

accordance with the format specified in California Code of Regulations (CCR), title 22, section 66270.11(d):

The certifications for Tank Containment and Tank Integrity by Eichleay Engineers Inc. of California is written in accordance with the format specified in California Code of Regulations (CCR), title 22, section 66270.11(d) are included in Appendix IV-C, pages (i) and (ii).

2. Engineering Certification of Tank Secondary Containment

The purpose of the certification of the tanks secondary containment system located in Appendix IV-B is to confirm that there will not be any releases of hazardous waste contents to subsoil or surrounding areas in the event of a tank failure or spillage at AES - Chico.

The AES-Chico tank farm storage area consists of: • An area measured as 36’6” x 17’5 ½ ” • One 10,000-gallon, steel, horizontal, above-ground tank, which

are 8 feet in diameter and 27 feet 4 inches long • One 1,000-gallon, steel, horizontal, above-ground tank, which is

4 feet in diameter and 12 feet 3 inches long • One 500-gallon, steel, horizontal, above-ground tank which is 4

feet in diameter and 6 feet long

The secondary containment for the AES - Chico above-ground tank systems includes and addresses the following requirements:


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a. AES - Chico’s secondary containment volume (1,382.2 CuFt)

exceeds the require volume (1,208.4 CuFt) needed to contain 100% of the largest tank volume, plus the volume of rainfall from a 24-hour, 25-year rainstorm. See Appendix IV-B, Secondary Containment Certification, page 5 of 5 Containment Analysis for actual calculations.

b. The secondary containment pad and berms are coated with an

epoxy acrylic concrete coating, which makes an impervious barrier and prevent migration of spilled liquids.

c. The epoxy acrylic concrete coating material, used as the coating,

is compatible with and resistant to the wastes handled in the tank system.

d. The AES - Chico secondary containment has sufficient structural

strength and thickness to prevent failure due to pressure gradients, physical contact with the waste to which it is exposed, climatic conditions, and the stress of daily operation. The tank containment berm has been assessed to resist hydrostatic fluid pressure due to full height containment of water. The specific gravity of oil in the containment area is less than that of water. In addition, the full height of fluid pressure is greater than the required containment head. Calculations for design pressure gradients are located in Appendix IV-C, Tank Certification, Structural Calculations. Above Ground Tank Assessment Attachment No. 2, Structural Calculations – Foundation, Anchorage, and Structural Integrity Page A2-17 – A2-19.

e. The AES - Chico secondary containment foundation is capable of

providing support, resistance to pressure gradients above and below the system and capable of preventing failure due to settlement, compression or uplift. The base is free from cracks or gaps.

f. The AES - Chico secondary containment system is designed and

operated so that visual observation may be used to detect the failure of either the primary or secondary containment structure or the presence of any released of hazardous waste or accumulated liquid in the secondary containment system within 24 hours.

g. The AES - Chico secondary containment has a slope designed

which flows from the north to the south end of the containment


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area, and was designed to remove liquids resulting from leaks, spills or precipitation.

h. AES - Chico is designed and operated to prevent run-on and

infiltration of precipitation into the secondary containment system from other areas within the facility.

i. The certification for Tank Containment by Eichleay Engineers Inc.

of California is written in accordance with the format specified in California Code of Regulations (CCR), title 22, section 66270.11(d) are included in Appendix IV-C, page (i).

3. Engineering Certification of Secondary Containment of Container

Storage Areas.

The AES-Chico drum storage area consist of:

• An area measured as 7’6” x 10’5.6” • Area which may contain up to 8 x 55 gallon drums or any

size drums not to exceed 440 gallon total capacity.

The secondary containment for the AES - Chico drum storage area includes and addresses the following requirements:

a. AES - Chico’s drum storage secondary containment volume was

based 20% of the aggregate volume of all containers or the volume of the largest container, whichever is greater, plus the volume of rainfall from a 24-hour, 25-year rainstorm.

b. The drum storage secondary containment pad and berms are

coated with an epoxy acrylic concrete coating, which makes an impervious barrier and prevent migration of spilled liquids.

c. The epoxy acrylic concrete coating material is compatible with

and resistant to the wastes handled in the drum storage area.

d. The AES - Chico drum storage secondary containment has sufficient structural strength and thickness to prevent failure due to pressure gradients, physical contact with the waste to which it is exposed, climatic conditions, and the stress of daily operation. The AES - Chico drum storage secondary containment berm has been assessed to resist hydrostatic fluid pressure due to full eight containment of water. The specific gravity of oil in the containment area is less that that of water. In addition, the full height of fluid


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pressure is greater than the required containment head. See Appendix IV-B, Secondary Containment Certification.

e. The AES - Chico drum storage secondary containment foundation

is capable of providing support, resistance to pressure gradients above and below the system and capable of preventing failure due to settlement, compression or uplift. The base is free from cracks or gaps.

f. The AES - Chico drum storage secondary containment system is

designed and operated so that visual observation may be used to detect the failure of either the primary or secondary containment structure or the presence of any released of hazardous waste or accumulated liquid in the secondary containment system within 24 hours.

g. The AES - Chico drum storage secondary containment has a

slope designed which flows from the north to the south end of the containment area, and was designed to remove liquids resulting from leaks, spills or precipitation.

h. AES - Chico drum storage is designed and operated to prevent

run-on and infiltration of precipitation into the secondary containment system from other areas within the facility. Run on is prevented by existing containment walls and berms.

i. The certification for Secondary Containment by Eichleay

Engineers Inc. of California is written in accordance with the format specified in California Code of Regulations (CCR), title 22, section 66270.11(d) are included in Appendix IV-B, Secondary Containment Certification, pages 2 through 5.

4. Engineering Certification of Compliance with Seismic Standards

The Structural Calculations, Above Ground Tank Assessment, includes calculations to show that supporting tank structures are of sufficient strength to withstand a seismic event is located in Appendix IV-C. The calculation includes a ground acceleration factor based on current earthquake fault data, the Alquist-Priolo Earthquake Fault Zones, in the vicinity of the facility.


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H. ENGINEER'S QUALIFICATION

Ron Wise, SE Eichleay Engineers Inc. of California

1390 Willow Pass Road, Suite 600 Concord, California 94520 Registration Number: S2401 Registration Expiration Date: 3.31.09


Appendix IV-A

Maps


Appendix IV-A, Maps Page 1 of 3

Figure IV-A-1

Facility Plot Plan/Legal Boundary Map



Figure IV-A-2 Transfer Area Site Plan



Figure IV-A-2a Transfer Area Site Plan (Future Containment Slab Extension)


Appendix IV-B

Secondary Containment Certification


Appendix IV-C

Tank Certification, Structural Calculations,

Above Ground Tank Assessment

[~JEichleayISO 9001

Asbury Environmental Services2549 Scott AvenueChico, CA 95928

Chico Transfer SiteContainment Certification

Table of Contents

Elchleay Engineers ~lC. 01 Cahfanla

Section

Containment Certification (Stamped)

Containment Evaluation

Design Certification

Containment Analysis

Appendix 1 - Facility Plot Plan

Appendix 2 - Site Plan

Page I of 5

Page

2

3

4

5

6

7

1390 Willow Pass Road, Suile 600 • Concord, California 94520 • Tel 925.689.7000 • Fax 925.689.7006 • I'Il'1w.eichleay.ccm

[~]EichleayISO 9001R'G''''R'"'O..... y

February 26, 2003


EPA ID Number CAL 000 627 644

Containment CertificationChico Transfer Site

Eichleay Engineers Inc. of California

I hereby certify that I have examined the facility and being familiar with the provisions of CCRTitle 22, Section 66264,193 attest that containment volumes for tank farm areas at AsburyEnvironmental's Chico Transfer Site are suitably designed and constructed to containmentvolume requirements of CCR Title 22, Section 66264,193,

I certify under penalty of law that this document and all attachments were prepared under mydirection or supervision in accordance with a system designed to assure that qualified personnelproperly gather and evaluate the information submitted, Based on my inquiry of the person orpersons who manage the system, or those persons directly responsible for gathering theinformation, the information submitted is, to the best of my knowledge and belief, true, accurate,and complete, I am aware that there are significant penalties for submitting false information,including possibility of fine and imprisonment for knowing violations,

Robert V, Andrew, PEMechanical No. 18524Expires 9/30/06

Page 2 of)

[~]EichleayAsbury Environmental

Chico Transfer Site

Containment Evaluation

Purpose of Evaluation

The following evaluation is provided to determine the containment areas at Asbury EnvironmentalChico Transfer Site meet the requirements of CCR Title 22, Section 66264.193.

Containment capacities are calculated for the following areas:

Tank Farm containing 1-10,000 Gal, 1-1,000 Gal, and 1-500 Gal tanks.

Drum Storage containing up to 9 55 Gal drums.

The basis by which these calculations were completed and a summary of calculations areincluded herein. Existing containment capacities are compared to requirements of CCR Title 22,Section 66264.193. Detailed calculations for each area are on file at Asbury Environmental.

Basis of Calculations

1. Tank farm containment must be provided to retain a volume equal to or greater than thesum of:a) 10% of the total volume of all tanks within the containment area, or 100% of the

largest tank - whichever is greater, plusb) rainfall accumulation within the perimeter of containment for a 25 year - 24 hour

storm. This equals 4.03" of rainfall based on the California Department of WaterResources Rainfall Depth-Duration-Frequency for Chico, and adopted by the Cityof Chico, California.

2. Containment calculations for each area is based on:a) minimum existing height of walls or curbsb) finish grade elevation within the containment areasc) total area enclosed by the containment walls or curbs.

3. Existing containment walls and curbs prevent storm water from migrating from the rest ofthe facility into tank farm containment areas.

Summary

Description Containment Containment Percent ContainmentRequired (Cu Ft) Available (Cu Ft)

Drum Storaqe 33.8 42.4 125Tank Farm 1208.4 1382.2 114

Conclusions

1. The available containment volumes have been calculated on the following pages. Theresults of these calculations are given above as a ratio of the available containmentvolume to the required containment volume.

Tank farm containment volumes meet the requirements of CCR Title 22, Section66264.193.

2. All run-on from accumulated precipitation outside containment areas, is prevented byexisting containment walls and curbs.

Page30f5


Chico Transfer Site

Design Certification

The design of the containment areas will be reviewed by a registered professional engineer forcompliance with CCR Title 22, Section 66264.193. The following items will be specificallyaddressed as part of the review.

Containment System

1. Tank farms used for the storage of hazardous wastes shall be provided with animpervious concrete base. The concrete base shall be designed such that it is free fromcracks and gaps, and shall be constructed on a compacted sub-base of sufficient densityto prevent settlement. Construction joints shall be sealed using embedded water stops,impervious caulking, or by other suitable means to prevent leaks from penetrating thebase.

2. The base shall be sloped to direct any accumulated liquids away from the tanks, or thetanks shall be elevated above the base using legs or skirts.

3. The containment volume shall be sized to contain 100 percent of the largest tank volume,or 10 percent of the aggregate volume of all tanks within the containment area, whicheveris greater. For locations exposed to precipitation, additional containment shall beprovided for the accumulation of rainfall from a 25-year, 24-hour storm.

4. Storm water shall be prevented from migrating into tank farms from outside thecontainment area by directing storm water away from these areas and by existingcontainment systems.

Engineering Review

1. Inspection of the tank farm containment area and drum storage area showed a concretebase of 10" with no settlement, cracking, or gaps. Containment walls of the tank farmhave been coated and sealed.

2. In the tank farm, all tanks were elevated on support saddles. The containment area has aslight slope to the floor slab.

3. Containment volumes have been evaluated as noted within this report and meet therequirements for tank/drum containment and rainfall.

4. Existing containment systems prevent the migration of storm water into the tank farm anddrum storage areas.

Reference Drawings

Drawing Title

Facility Plot Pian

Site Plan

Page 4 015

Appendix

2


Chico Transfer Site

Containment Analysis

Tank and Containment DataTank Data

Area Diameter Len!lth/Hei!lht Volume ICu FtlTank Farm T-1 95.5" 27'-4" L 1359.5

T-2 47" 12'-3" L 147.6T-3 45.75" 6"-1" L 69.5

Drum Storaae 55 Gal Drum 24" 2'-4" H 7.35

Tank FarmTotal Volume of All Tanks 1576.6 Cu Ft10% of Total Volume of All Tanks 157.7 Cu FtVolume of Largest Tank 1359.5 Cu FtNet Volume of Largest Tank Above Containment Level

Governs for Containment Requirements993.8 Cu Ft

Drum StorageTotal Volume of 8 Drums10% oITotal Volume of All DrumsVolume of Largest Drum

58.8 Cu Ft5.88 Cu Ft7.35 Cu Ft Governs for Containment Requirements

Containment CalculationsTank Farm:Tank Farm Area =Containment Wall Height =Containment Volume =Less Volume of All Tanks and Saddles Within Containment Space =Net Containment Volume Available =25-Year, 24- Hour Rainfall =Volume of Rainfall Accumulation =

Summary of Tank Farm Containment Calculations:Required Tank Volume ContainmentRequired Rainfall Containment VolumeTotal Required Containment VolumeContainment Volume AvailablePercent Containment

Drum Storage:Drum Storage Area =Containment Curb Height =Containment Volume =Less Volume of All Drums, Ramp Within Containment Space =Net Containment Volume Available =25-Year, 24- Hour Rainfall =Volume of Rainfall Accumulation =

Summary of Drum Storage Containment Calculations:Required Drum Volume ContainmentRequired Rainfall Containment VolumeTotal Required Containment VolumeContainment Volume AvailablePercent Containment

Page 5 of 5

638.8 Sq Ft38"2022.9 Cu Ft(640.7) Cu Ft1382.2 Cu Ft4.03'214.6 Cu Ft

993.8 Cu Ft214.6 Cu Ft1208.4 Cu Ft1382.2 Cu Ft114%

78.8 Sq Ft9.5"62.3 Cu Ft(19.9) Cu Ft42.4 Cu Ft4.03"26.5 Cu Ft

7.35 Cu Ft26.5 Cu Ft33.8 Cu Ft42.4 Cu Ft125%

FACILITY PLOT PLAN


,---------------------- -------------------------------

•

.~

Chico Transfer Site

SCOlT AIlENUE

Asbury Environmental Services - ChicoStandardized Permit Application - Section IV, Facility Design (Storage)December 29, 2006


Figure IV-A-1Facility Plot Plan/LegalBoundary Map

....

....SCOTT A'IENUE

Appendix IV-A, MapsPage 1 of2

Asbury Environmental Services - ChicoStandardized Permit Application - Section IV, Facility Design (Storage)December 29, 2006

Figure IV-A-2Transfer Area SitePlan

3 -r

H:GHIlLOC~

WALl. WITH 36· H:GHCIWN LINK FENCE

•HGH MOO:WALL WITH 36" HiGHCi'WN liNK !'£NeE

r-------'121'-6"~-----__,

~ PLATFORM

0~

1I1[ I;

'-8'---------'------i-'l'"lO"~---.J

J,(J'HIGH 1ll0CKWNJ. WITH 36" H'GHCHAIN UNI': FENCE

""CURB5' HIGH

~N

6"CUIU>5" HIGH

7'HIGHCHAIN "UNKFENCE

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III

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TRANSFER AREA SITE PLAN

"'we3/7f}SJJ3

,2549SCorrAVE.

CHiCO, CAlifORNIA9m6

ov

AEI CHICO fACIlllY IlAAW,NG! DC 100TRANSFERAREASfJEPLA -

PAGE

m

REV DA'lE REVISiON HiSTORYlit ...-;tm IlIItm

Appendix IV-A, MapsPage 2 of2

38" HIGH BLOCKWALL WITH 36" HIGHCHAIN LINK cENCf.

-----------""':===:::;:=====;-I,- -------I/·.S~'·I------Is·..r'~-----, ,-

36 -0'

27 -4"

6" CUI~B'} I /2" HIGI~

PLOT PLAN7' HIGH CHAINLlI~K FEI>lCf.

3 SIDES

~I

6"CURfl5"HIGH

6" CURBS"HIGH

40-0"

fUTURE CONCRETEBERM (ROLL CURB)12" WIDE X 3" HIGH

/

'~ttI..;;J \-'DETAIL 8

"t.,I

REV DATE REVISION HI$IORY

1"/e '21liOll INITIAL RELEASE

i--J._+ -jllllE

ASWRY ENVIRONMENTAL SERVICES2549 scan AVE.

CHICO. CALIFORNIA 95928

AES CHICO fACllI!Y DRAWING' DC-lOGPLOT PLAN

.'CL 1~'fcHWA::CHC\\ lIi5lWAI'WG:i '? ~t

COM'CfHDA\ CO~fIOEN!I,\l MWPRIVIIWGfr) lI,fORMATIQ"

DRAWN BY: ov DATE3/7/2C03

PAGE ~tV. N/C

[~JEichleay

March 31, 2008

Asbury Environmental ServicesChico Transfer Site

2549 Scott Ave.Chico, CA 95928

EPA 10 Number CAL 000 827 844

Tank Containment Certification

Eichleay Engineers Inc. of California

In accordance with the requirements of CCR Title 22, Section 66264.193 -Containment andDetection of Reieases, a tank containment has been completed for the following:

• One 10,000-galion storage tanks referred to as T-1.• One 1,OOO-galion storage tank referred to as T-2.• One 500-gallon storage tank referred to as T-3.

It was noted in Figure IV-A-2, Transfer Area Site Plan, that the truck containment slab will beextended an additional 40 feet as part of a future project. It was also noted that the existing truckcontainment slab has some cracking which needs to be repaired.

Tank containment was certified as meeting the above referenced requirements in February 2003.I have reviewed those documents, inspected the containment at the site, and do not find anyconditions, except for those noted above, which in my jUdgment would alter the previousassessment. The 2003 containment certification and supporting documents can be found inAttachment 1 of this document, following this certification.

I certify under penalty of law that this document and all attachments were prepared under mydirection or supervision in accordance with a system designed to assure that qualified personnelproperly gather and evaluate the information submitted. Based on my inquiry of the person orpersons who manage the system, or those persons directly responsible for gathering theinformation, the information submitted is, to the best of my knowledge and belief, true, accurate,and complete. I am aware that there are significant penalties for SUbmitting false information,including possibility of fine and imprisonment for knowing violations.

Ron Wise, SEStructural License No. S2401Expires 3i31/09

1390 Willow Pass Road, Suile 600 • Concord, California 94520 • Tel 925.689.7000 • Fax 925.689.7006 • www.eichleay.com

(i)

[<i]Eichleay

March 31, 2008




Tank Integrity Certification

Elchleay Engineers Inc. of California

In accordance with the requirements of CCR Title 22, Section 66264.191 - Assessment ofExisting Tank System's Integrity, a tank assessment has been completed for the following:

• One 10,000 gallon storage tanks referred to as T-1.• One 1,000 gallon storage tank referred to as T-2.• One 500 gallon storage tank referred to as T-3.

Based on the "Cities and Counties Affected by Alquist-Priolo Earthquake Fault Zones as of May1, 1999, Chico, there are no active faults within 3,000 feet of this site.

All tanks were certified as fit for service in February 2003. I have reviewed those documents,inspected the tanks at the site, and do not find any conditions, which in my judgment would alterthe previous assessment. The 2003 tank certification and supporting documents can be found inAttachment 1 of this document, following this certification.

I certify under penalty of law that this document and all attachments were prepared under mydirection or supervision in accordance with a system designed to assure that qualified personnelproperly gather and evaluate the information submitted. Based on my inquiry of the person orpersons who manage the system, or those persons directly responsible for gathering theinformation, the information submitted is, to the best of my knowledge and belief, true, accurate,and complete. I am aware that there are significant penalties for submitting false information,including possibility of fine and imprisonment for knowing violations.

tktw~Ron Wise, SEStructural License No. S2401Expires 3/31/09

1390 Willow Pass Road, Suite 600 • Concord, California 94620 • Tel 925.689.7000 • Fax 925.689.7006 • www.eichleay.com

~JEichleayISO 0001R(<t$'If""OCo","'Y

February 28, 2003




Tank Assessment Part 'B' Certification

Bchleay Engineers Inc. of California

In accordance with the requirements of CCR Title 22, Section 66264.191 - Assessment ofExisting Tank System's Integrity, a tank assessment has been completed for the following:

• 10,000 gallon horizontal storage tank supported on two concrete saddles used forstorage of used oil. Tank is referred to as T-1 in Tomac's Inspection Report.

• 1,000 gallon horizontal storage tank supported on two concrete saddles used forstorage of waste antifreeze/waste glycol. Tank is referred to as T-2 in Tomac'sInspection Report.

• 500 gallon horizontal storage tank supported on one elongated concrete saddle usedfor storage of used oil. Tank is referred to as T-3 in Tomac's Inspection Report.

All tanks are housed within a single containment area. This tank containment system is thesubject of a separate assessment and certification. This assessment has shown that the tanksystem is adequately designed, and has sufficient structural strength and compatibility with thewaste(s) to be transferred, stored or treated to insure that the tanks will not collapse, rupture orfail. This inspection has included ullrasonic testing and an external visual inspection.

I certify under penalty of law that this document and all attachments were prepared under mydirection or supervision in accordance with a system designed to assure that qualified personnelproperly gather and evaluate the information submitted. Based on my inquiry of the person orpersons who manage the system, or those persons directly responsible for gathering theinformation, the information submitted is, to the best of my knOWledge and belief, true, accurate,and complete. I am aware that there are significant penallies for submitting false information,including possibility of fine and imprisonment for knowing violations.

Samar H. Adranly, S.E.Structural License No. S003647Expires 12/31/05

1390 I/v'iilow Pass Road, Suite 600 • Cmeard, California 94520 • Tei 9:25.SeS.70QO· Fax ~25.t~9.!C("f3 • www.eichieay.oom

i

II

I

[~JEichleayAsbury Environmental Services

Chico Transfer Site2549 Scott Ave.

Chico, CA 95928

Table of Contents

Item No. Description Page No.

1. Basis of Tank Assessment 1

2. Facility Plot Plan 2

3. As-Built Site Plan 3

4. Tank Assessment Summary T-1 4



Attachment NO.1 653 Tank Inspection Reports by Tomac dated A1-1 through A1-121/19/03

Attachment NO.2 Structural Calculations - Foundation, A2-0 through A2-19Anchorage, & Structural Integrity

Attachment NO.3 Excerpts from Chico General Plan - Flood & A3-1 & A3-2Seismicity

BOO Wiilaw Pass Road, Silir& &CO • COOCCfG. Califor:1f<i ~520 • Tel 925.689.7000 • Fax 925.689.7006 • 'I'r·*~w.ejch!e2Y·corr:

[4]EichleayAsbury Environmental Services


Chico, CA 95928

Basis of Tank Assessment

Basis of field inspection procedures and calculations contained in this Tank Assessment areoutlined below:

1. Tank Inspections have been performed based on requirements of API 653 - Tank Inspection,Alteration, Repair, and Reconstruction using modffied inspection procedures as outlined inAPI 653. An external visual inspection as well as ullrasonic thickness measurement for eachtank has been taken. Tank Inspection Reports are provided in Attachment No.1. Incomparing the thickness measurements with those previously taken in 1997 (CONAMInspection Report, July 1997), the 10,000 gallon (T-1) and 500 gallon (T-3) tanks show nocorrosion has taken place in the last 5 years. The 1,000 gallon tank (T-2) currently in placewas installed after the July 1997 Inspection. Refer to individual Tank Assessment Summarysheets.

2. The site was retrofitted in 1998 and included the follOWing improvements:• New 1,000 gallon tank (T-2) to replace existing tank.• New/retrofitted concrete saddles and anchor straps for both the 10,000

gallon and 1,000 gallon tanks.• Placement of Coating at saddles and containment walls.

3. Maximum stresses in the tanks have been calculated using actual dimensions and thicknessfrom UT. The Zick Analysis method for horizontal vessels supported on saddles was utilizedfor this calculation. Structurallntegrify Calculations are included in Attachment NO.2.

4. Foundation and anchorage calculations are provided for the 10,000 gallon tank (T-1).Calculations demonstrate the foundation and tank anchorage is adequate for support of the10,000 gallon tank (T-1). Foundations and anchorage for T-2 & T-3 are similar to T-1 and aredeemed adequate by inspection. Foundation and anchorage calculations are based on UBCcriteria in Seismic Zone 3. Calculations are included in Attachment NO.2

5. Based on information from the City of Chico General Plan (1994), the site is not locatedwithin a 100 year flood plan and there are no active faulls within 3,000 feet of the site. (Seeexcerpts provided in Attachment NO.3.

1390 Willow Pass Road, Suiie 600 • Coocord, California 94520 • TeI925.689.7000· Fax 925.689.7006 • www.eichleay.com

FACILITY PLOT PLAN


~-

"II' ...

---------------------

\\nlsrvt'41DCSD130558\9. 0 Photos & Graphks\FAC1UTY PLOT PL4.N.doc

) I!'--i!

rONCRETE 2ER\1~ '" H'Gw,iST Co ""

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5"CURBHiGH

GENERAL NOT£S

)

15'-6"

I

,

EaUIPME~T NUMBERS. ._

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SiTE PLAN

-D 'OD-_..... ';':~-;,.I 001

[~EichleayISO 9001"""""UOOM'M'

Eichleay Engineers Inc. ofCalifania

TANK ASSESSMENT SUMMARY

Used oiVoily water; Maximum Specific Gravity: 1.0

DATE OF ASSESSMENTTANKIDNO.

DIMENSIONS

TANK CONTENTS

DESIGN STANDARD

T-1

95.5" 0.0. / Length - 27' 4"

Unknown

CAPACITY

AGE OF TANK

10,000 gallon

Unknown

1/31/03

NAME PLATE DATA Unknown

MATERIAL OF CONSTRUCTION Carbon steel

FIELD INSPECTION DA TA:

DA TE OF INSPECTION

Tomac Inspection Report - Attachment No. 1

1/19/03

MINIMUM SHELL THICKNESS

CORROSION PROTECTION MEASURES

.220"

External Paint System

STRUCTURAL SUPPORTS, FOUNDATIONS, ANCHORAGE: Horizontal Tank Supported ontwo concrete saddles and mat foundation. Tank is anchored to foundation by flat plate straps andanchor bolts.

STRUCTURAL INTEGRITY OF TANK SHELL - Calculated per Zick Analysis (See Attachment No.2)Maximum Shell Stress is below allowable stress.

SEISMICIWIND LOADING CALCULATIONS - Foundation and anchorage calculations have beenperformed in accordimce with Uniform Building Code Requirements in Seismic Zone 3. (See AttachmentNo.2) Wind does not govern design.

Tank complies with these requirements.

1390 WJlIaw Pass Road, Suite 500· Concord, California 94520 .. TeI925.689.7000" Fax 925.689.7006 • WVvw.eichieay.com

4-

[~JEichleayISO 9001"''''''''Rf~CO_'

8chleay Engineers Inc. Of Califcmia


Waste AntifreezelWaste Glycol; Maximum Specific Gravity 1.3


DIMENSIONS

TANK CONTENTS

DESIGN STANDARD

T-2

47" 0.0. / Length: 12' -3"

Unknown

CAPACITY

AGE OF TANK

1,000 gallon

Unknown

1/31/03

NAME PLATE DATA Unknown


FIELD INSPECTION DATA:

DA TE OF INSPECTION

Tomac Inspection Report- See Attachment No.1

1/19/03



.125"

External Paint System

STRUCTURAL SUPPORTS, FOUNDA TlONS, ANCHORAGE: Horizontal Tank Supported ontwo concrete saddles and mat foundation. Tank is anchored to foundation by flat plate straps andanchor bolts.

STRUCTURAL INTEGRITY OF TANK SHELL - Calculated per lick Analysis (See Attachment No.2)Maximum Shell Stress is below allowable stress.

SEISMICIWIND LOADING CALCULATlONS - Foundation and anchorage is similar to T-1 and aredeemed adequate by inspection.


1390 itY'illow Pass Road, Suite 600 • Coo cord, Califcmia 94520 • Tei 925-689.7000· Fax 925.689.70Q6 • w·w"W_€ichleay.com

G'

[~JEichleayISO 9001"'GlSII..DC<>OoP"~

Eichleay Engineers Inc. of CalifOOJia



DIMENSIONS

T-3

453/4" 0.0.1 Length: 73" CAPACITY 500 gallon

1/31/03

TANK CONTENTS Used OiVOily Water; Maximum Specific Gravity 1.0

DESIGN STANDARD

NAME PLATE DATA

Unknown

Unknown

AGE OF TANK Unknown


FIELD INSPECTION DA TA:

DA TE OF INSPECTION

Tomac Inspection Report - See Attachment No.1

1/19/03



.070"

Ex1erior Paint System

STRUCTURAL SUPPORTS, FOUNDATIONS, ANCHORAGE: Horizontal Tank Supported on acontinuous saddle. Tank is anchored to foundation by embedded steel plates.

STRUCTURAL INTEGRITY OF TANK SHELL - Calculated per Roark Article 12.7 (See Attachment No.2)

Maximum Shell Stress is below allowable stress.

SEISMICIWIND LOADING CALCULATlONS - Foundation and anchorage is similar to T-1 and aredeemed adequate by inspection.


1390 Willow Pass Road, Suite 600 • Concord, California 94520 • Tel925589.7000· Fax 925.689.7006 • w'h"w.eichleay.c:om



Chico, CA 95928

Attachment No.1

653 Tank Inspection Reports by Tomac dated 1/19/03 for T-1, T-2, & T-3

139'0 'Mlo,y Pass Road, Suite 600 • Conccrd, Calik.r~ia &452G • :e! G25.oc.S.?00}· F2x 225.58&.?Q06 • lVw-w.e.ichleay.COfT:

TOMAC

653 TankInspection Report

T-l

Al- \

Type: Horizontal TankDiameter: 95.5" 0.0. Length: 27' 4"

Stock: Used Oil/Oily WaterYear Built: Unknown

Material: Carbon Steel (grade unknown)Cathodic Protected: No

Design Standard: UnknownCapacity: 10,000 Gal

EXTERNAL

Customer: Asbury Environmental Service

Location: 2549 Scott Av.Chico, Ca 95928

Date: 1/1912003

INTERNAL

ll. SHELL

A. Coating or Ins ationB. Weld SeamsfRi etsC. NozzlesIRe-pD. ManwaysIRe-p dsE.DaviF. Ground WireG. Anchor BoltsH. Name Plate.

2). FOUNDAnON

A. ConcreteIPadB. Bottom Extension (Chime)C. Drain OpeningD. SettlementE. Seconda Containment

3). APPURTENANCE

A. Auto GagewellB. ValvesC. MixersD. Other

4). STRUCTURE

A. StairwaylLaddersB. PlatformlHandrail

.oatmg or nsu al100B. Weld Seam/RivetsC. Sample Hatch & GuideD. Vacuum BreakersENozzlesF. ManwaysG. Breathers & VenlsH. Other

6). SHELL

A. WallsB. Roof (botlom side)C. Welds SeamsfRjvelsD. NozzlesiManwaysE. Gasket Surface

7. BOITOM

A. Floor/LiningB. Weld SeamsC. Ware PlatesD.Sump

8). APPURTENANCE

A. Piping ManifoldB. HeaterC. MixerD. GagewellE. Other

9). STRUCTURE

A. StructureB. RaftersC. GirdersD. Trusses

10). RECOMMENTJONS

BACKGROUNDThis report documents and provides an evaluation of the inspection results per the applicable criteria ofAPI-653 1995 with 1999addendum. 'There is no history ofprevious inspection, when the tank was built or what code it was built to.

EXTERNALShell:The tank paint was found in good condition with no peeling or damage. There was indication ofprevious generalcorrosion/pitting with an average of 10-20 mils and a high of80 mils. The area next to the 80 mil pit was UT'd at.240".Other than some areas with previous corrosion/pitting to 30 mils, the horizontal and circumferential welds seams were allfound in fair condition with no obvious defects or indications ofleakage. The coating on the east and west heads were also ingood condition. The east head had random areas ofprevious corrosion/pitting, with an average of 10-20 and a max of70mils. Tills head was UT'd at 24"-25". The west head had previous corrosion/pitting, with an average of 10-20 and a max of50 mils. This head was UT'd at 23"-24". No banding or peaking was found. No indication of out-of-round noted. Thenozzles and couplings appeared in good condition with the paint intact and no corrosion or pitting. The manway appeared ingood condition with no corrosion or pitting found and the paint was intact. There are no davits on the shell. There was noground wire found. The anchor bolts, which were embedded into the concrete pedestals, were all hammer tested and found tobe sound. The two hold down straps were found in secured with no corrosion or damage. The concrete pedestals were foundin good condition with no spalling or cracks. No nameplate was found. Review of the UT readings revealed no significantcorrosion.

Foundation:The concrete pad appeared in good condition with no relevant cracks or spalling. There was no vegetation problem found. Noindication of settlement could be visually noted. This inspector took no settlement measurements. No indication ofbottomleakage noted. The containment walls shared with two other tanks were found in fair condition with no spalling or cracks.

. /Z.?~Stgnature: 7"Inspector: John Montanez - API 653 # 1285 / CWI #8901070 j

11642 Knott Avenue. Garden Grove, CA 92841 • 800.273.6091 • 714.892.9981 • fax 714.898.6172

Page J of2

TOMAC


T-l

Type: Horizontal TankDiameter: 95.5" O.D. Length: 27' 4"



Design Standard: UnknownCapacity: 10,000 Gal

EXTERNAL CONT.



Date: 1119/2003

Appurtenance:The auto gauge showed 6" when it should have been 0". The 3" valve on the east side appeared in good condition with rioindication ofleakage.

Structure:The stairway, p'latforms and handrails associated with this tank were found in good condition with no corrosion or pitting.

INTERNALSHELL:The shell ill was found in good condition with no measurable corrosion or pitting. The east and west heads were in the samecondition as the shell, The horizontal connections were found with lap joints with no welds on the ill. The circumferentialjoints were butt welded, however they were not full pen welds but were stitch welded. The manway ill's and the cover !D'swere in good condition with no corrosion or pitting noted. The roanway gasket surface was found in good condition with nodings or nicks. The nozzle ill's were also found with no corrosion or pitting. The nozzles and rnanway were Dot full pen welds.

APPURTENANCE:The I y," internal piping was hannner tested and found to be in sound condition. The auto gauge float appeared in soundcondition with no noticeable leakage. The guide wires were in good condition with no twisting or fraying noted.

STRUCTUREThere were no rafters. girders, lateral bracing or center column associated with this tank.

Recommendations:1), Consider re-calibrating the auto gauge.2). Perfonn ultrasonic test and external visual inspection in five years.

. .a.?~Signature: .7Inspector: John Montanez - API 653 #1285 / CWI #8901070I

j ~6~2 Knott Avenue. Garden Grove.CA 92841 .800.273.6091.714.892.9981. fax 714.898.6172Page 2 of2

Ultrasonic Technique Report Form Al-~

Customer:Asbury Environmental Servj~__ _25!l2.Scolt Ay __. . ...._..__...Chico.C.a...25!l2.&.......- .__._ ..__. ._

General InformationPart Name:

UsedQiV.o..il)'.Wal.eL. ._ ......._. _. '.__ ._.....

Piece Number:r.,L .

Part Material:~ _

Procedure:IM".l1I=.L.. ~ ._ ..... ._

Codes: NIA..__.__. . . _. .__.... _

Test EquipmentInstrument Used: .ll S K 71DM&2. . ._ ..__n_.

Angle Used: Straight BeamlPitl;;!LCat<:lL ." _.... ._

Searcb Unit .5f)." llia.5MHz.I'nIseEcho.__._.._.. ._

Couplant: Jl1Ira..G.eL.. .._.. ._

Sketch:

Customer P.O.: .. _......._... .__ ...

Job Number: ._ .. _

TM Numher: O~,ooL...._ Date: l/J'l12llll1....__._.. _ .....__ .

Description OfCalibration:JJl':' JO~-lUld..5Jb:arb.nn.steel.step..blncl<using llineaL..._h3J:ks.on a.r=een....... ..._

-_.._.._-- -------.__.._----- "--------.-.__._.- ---

Configuration To Be Examined:YJ,ss~l. . . . . _

-' - .._-..._. --------

Scanning Technique:Spo.tCheclL. .__.._.

Surface Preparation: Norune'--__

Surfuce Condition: Good

Finding!:

The UT readings 01\ the ,hell were UOOi .220" to .250", theheads were ftom .230" to .250·, the 3· nozzle was .195· to.200· and the 2" nozzles was ftom .200" to .210·. No 1Dpitting was noled. See d1awing attached.

Technician: .klhn.MQntanez~. Level: -.1LCWI# 89010701 ';/'-'

11642 Knott Avenue. Gwlen Gro<c. CA 92841 • llOIJ.273.6091 • 714.892.998] • lID< 714.898.6172

lOf-~ fIO/tOO'd ll9-1 9t6l5f90lf NOOO~3~ ONN3n30-WDJ~ f,:ll fOOl-ll-qa~

USED OILTANK # T-1CARBON STEEL95'-5"0.0.27' 4" L

2"

1 ') I

3"

16) /

2

15

3

5

4

6 7 8 9 10) (11 12

I (14

t ASBURY \ I»ENVIRONMENTAL./nc.'!U.Q .~ClItt, CA 9"'028

1) T - .240" 2) T - .240" 3) T - .250" 4) T - .240" 5) T - .240" 6) T - .250" 7) T - .240" 8) T - .240" 9) T - .240"N ~ ,245" N - .245" N - .250" N - .245" N - .240" N ~ .245" N - .240" N - .235" N - .245"

B - .240" B - .240" B - .245" B - .240" B - .240 B - .240" B - .240" B • .240" 8 - .240"

S - .250" S - .245" S - .250" S - .250" S - .240" S - .245" S - .245" S - .235" S - .245"

C - .250"

10) T - .235" 11) T-.240" 12) T-.240" 13) T-.220" 14) T-.240" 15) N-.240" 16) T-.195" 17) T - .210"N - .235" N - .235" N - .240" N - .230" N - .240" E - N/A" N - .200" N - .210"B - .240" B - .240" B - .240" B - .230" B - .230" S - .240" B - .200" B - .200"S - .235" S - .235" S - .240" S - .235" S - .240" W - N/A" S - ,195" S - .210"

C - ,240" T -1INSPECTED eY:

J. MONTANEZ T,~m~Cfr~,2Iu~~')'Je:~a!nS591GAAD~GROYE.C"92Nl FAX: 714-h1Ml112

TOMAC


T-2

Al-S

Type: Horizontal TankDiameter: 47" O.D. Length: 12' 3"

Stock: AntifreezeIWaste CoolantYear Built: Unknown


Design Standard: UnknownCapacity: 1000 Gal

EXTERNAL



Date: 111912003

INTERNAL

J). SHELL

A. Coating or Ins atianB. Weld SeamsIRl etsC. NozzlesIReD. ManwaysJRe·p ds

. DavitsF. GTOund WireG. Anchor BoltsH. Name Plate.

2). FOUNDATION

A. ConcreteJPadB. Bottom Extension (Chime)C. Drdin OpeningD. SettlementE. Secondar Containment

3). APPURTENANCE

A. Auto GagewellB. ValvesC. MixersD. Other

4). STRUCIlJRE

A. StairwaylLaddersB. PlatforrnlHandrail

. oatmg or nsu allOnB. Weld SeamIRivetsC. Sample Hatch & GuideD. Vacuum BreakersE.NozzlesF. ManwaysG. Breathers & VentsH. Other

6). SHELL

A. WallsB. Roof(bottom side)C. Welds SeamsIRivetsD. NozzlesIManways

. Gasket Surface

7. BOTIOM

A. FloorfLiningB. Weld SeamsC. Ware PlatesD. Sump

8). APPURTENANCE

A. Piping ManifoldB. HeaterC. MixerD. GagewellE. Other

9). STRUCTURE


10). RECOMMENTIONS

BACKGROUNDThis report documents and provides an evaluation ofthe inspection results per the applicable criteria of API-653 1995 with 1999addendum. There is no history ofprevious inspection, when the tank was built or what code it was built to.

EXTERNALShell:The tank paint was found to be in good condition with no peeling or damage. The horizontal and circwnferential welds seamswere all found in good condition with no obvious defects or indications ofleakage. The coating on the east and west headswere found in the same condition as the shell. No banding or peaking was found. No indication ofout-of-round noted. Thenozzles and couplings appeared in good condition with the paint intact and no corrosion or pitting. The manway appeared ingood condition with no corrosion or pitting found and the paint was intact. There are no davits on the shell. There was noground wire found. The anchor bolts, which were embedded into the concrete pedestals, were all hammer tested and found tobe sound. The two hold down straps were found in secured with no corrosion or damage. The concrete pedestals were foundin good condition with no spalling or cracks. No nameplate was found. Review of the UT readings revealed no signifkantcorrosion.

·Fonndation:The concrete pad appeared in good condition with no relevant cracks or spalling. There was nO vegetation problem found. Noindication of settlement could be visually noted. This inspector took no settlement measurements. No indication of bottomleakage noted. The containment walls shared with two other tanks were found in fair condition with no spalling or cracks.

Appurtenance:The auto gauge showed 2" when it should have been 0". The 3" valve on the east side appeared in good condition with noindication of leakage.

Signature:~~lnspector: John Montanez - API 653 # 1285 ! C\VI #890 j 070 I

11642 Knott Avenue. Garden Grove, CA 92841 .800.273 609! • 7].t.8-92.9981 • fax 714.898.6P2

Page I of2

TOMAC


T-2

AI-(p

Type: Horizontal TankDiameter: 47" O.D. Length: 12' 3"

Stock: Antifreeze/Waste CoolantYear Built: Unknown



EXTERNAL CONT.

Structure:There was no stairway, platforms or handrails associated with this tank.

INTERNAL


Location: 2549 ScoltAv.Chico, Ca 95928

Date: 1119/2003

SHELL:The shell ill wa~ found to be in excellent condition with no corrosion or pitting. The east and west heads were in- the samecondition as the shell. The horizontal and circumferential connections were found with lap joints with no welds on the ID. Themanway ID's and the cover ill's were in good condition with no corrosion or pitting noted. The roanway gasket surface wasfound in good condition with no dings or nicks. The nozzle ID's were also found with no corrosion or pitting. The nozzles androanway were not full pen welds.

APPURTENANCE:The 1 ~.. internal piping was hammer tested and found to be in sound condition. The auto gauge float appeared in soundcondition with no noticeable leakage. The guide wires were in good condition with no twisting or fraying noted.

STRUCTUREThere were no rafters, girders, lateral bracing or center colwnn associated with this tank.

Recommendations:I). Consider re-calibrating the auto gauge.2). Perform ultrasonic test and external visual inspection in five years.

Signature: 7 ~InspectOT: John Montanez - API 653 #1285.1 C\VI #89010701

11642 Knott Avenue. Garden Grove. CA 92841 .800.273.6091 • 714 8CJ2()981 • fa"X 7]4.S98.6! T2Page 2 of2

:\.,~VIC4h. Ultrasonic Technique Report Form~ ''(>

Customer:ASbury.EnvironmentalSenice. _ -------_ .2i49..£oolltl..llA~y__. ._'. _._ _. ._ChicoSa...952'.lj281L.._


WQ.~k.Aotifreeze/Waste __"'\')~_._._.

Piece Number:"[·2_ ._. __. __.__._ .

Part Material: Carb.ll.n.Steel- . __ . _. _ '.m. ._

Procedure:TM-I/T-5

Codes: NJA_ ._._ _ .m. _ .

Test EquipmentInstrumenlUsed: U SK 7IDM&2 ..._"_"._m__ .• _._

AngleUsed: S~h.C.atelL...__ _._ .

Search Unit: .50"D.ia.5.MHz.Pulse.Es:ho.. _ _._ _...__..

Couplant: .ll.ltra..nUl:JelL....._

Sketch:

Customer P.O.: __. _. .... _. .....,_,. _

Job Number. .

TM Number: OHIll!!__. Date: 1l.l9l2003 ....

Description OfCalibration:

..10"•.3.ll".and 50" carbDn.steelsJ.ep..blocluising...lliDellL-.hacks.D.n~_scr.een.. .._. ._ ... _-_. _.._-- ---_.. _-_._-_ ..- ..-._----_. _.._---- --------_..._---_.

Configuration To Be Examined:yessel . . .__.__._.---_.._...•..__._--- '-' .__•....._-----_.•._--_ ....- -'---

Scanning Technique:SpDt.Check.....__.

Surface Preparation: Nnne.m . m__

Surface Condition: Oood ... ..

Finding,,:

The liT readin.. on tbe :;hen were from .125" to .130", theheads were also from 25" to ,130", the 3" nozzle was all200" and the 2" nozzles was from .140" to .150". Nopitlinl! was noted. See drawing attached,

Technician: JD.hnMontanez~/J.u:...=-~: Level: ...1LCWJ# 89010701 ..:Y'-:~.L-z:;r---

11642 Knoll Avenue. Gan.len Gruve. CA 92841 • 80').273.6091 • 714.892.9981 • lax 714.898.6172

10E-; EIO/SOO'd L19-1 9t616E90lE NOOO~3~ ONN3W30-WOJ ; ,,:11 EOOI-Lz-qa;

_•._._--•..-.-.-.._-------~------------_.

WASTE ANTIFREEZE I WASTE GlveOlTANK # T-2CARBON STEEL47"0.0.12'3"L

1

J"

10

~

9

I ( 8

11) /

2 3 4 5 6 7

1) T·.125"N· .125"B - .125"8· .125"C· .125"

101 N·.150"E·.150"8·.140"8· .140"

2) T· .130"N-.130"B - .125"8· .125"

3) T·.130"N·.130"B - ,125"8·.125"

4) T·.130"N-.130"8-.125"8-.125"

5) T· .125"N· .125"6-,125"8·.130"

6) T·.130"N·.130"B· .125"S· .130"

7) T· .130"N· .130"B· .125"8-.125"

8) T· .130"N· .130"B - .130"S - .130'(C - .130"

9) N· .240"E - .240"8· .240"W· .240"

ASBURYENVIRONMENTAL Inc.2549 Scott, CA 95928

TANK NO.

T·2INSPECTED BY:

J. MONTANEZ

Ultrasonic Thickness 1\Inspection (jI

0'1"1.19_2003 In:l'4-T2

T,~~Jo1-r~J?!I~~r¥jf:~Job.!P~lOAADENG~OV£.C'" 02Bf' ~A.l<, 11~'B9B"'"2

TOMAC


T-3

AI-9

Type: Horizontal Tank ,Diameter: 45 v," O.D. Length: 73"






Date: 1/1912003

n.SHELL

EXTERNAL

2). FOUNDATION 4). STRUCTURE 61. SHELL

INTERNAL

81. APPURTENANCE

A. Coating or Ins anonB. Weld Seams/Rj else. NozzlesIRe-pD. ManwaysIRe-p dsE. DavitsF. Ground WireG. Anchor BoltsH. Name Plate.

A ConcreleIPadB. Bottom Extension (Chime)C. Drain OpeningD. SettlementE. Second Contain ent

3). APPURTENANCE

A. Auto GagewelJB. ValvesC. MixersD. Other

A. StairwaylLaddersB. PlatformlHandrail

oatlng or nsu allonB. Weld SeamIRivetsC. Sample Hatch & GuideD. Vacuum BreakersE. NozzlesF. ManwaysG. Breathers & VentsH. Other

A. WallsB. Roof(bottom side)C. Welds SeamstRivetsD. Nozzles/ManwaysE. Gasket Surface

7. BOTTOM

A. Floor/LiningB. Weld SeamsC. Ware PlatesD. Sump

A. Piping ManifoldB. HeaterC. MixerD. GageweJlE. Other

9). STRUCTURE


J0). RECOMMENTIONS

BACKGROUNDThis report documents and provides an evaluation ofthe inspection results per the applicable criteria ofAPI-653 1995 with 1999addendum. There is no history ofprevious inspection, when the tank was built or what code it was builtto.

EXTERNAL an-service)Shell:The tank paint was found to have a few cracks and a few spots where it had chipped off. This inspector was infonned thatthese chipped areas would be repainted. The horizontal and circumferential weld seams were all found in good conditionwith no obvious defects or indications of leakage. The coating on the east and west heads were found in fair condition. Nobanding or peaking was found. No indication ofout-of-round noted. The nozzles and couplings appeared in good conditionwith the paint intact and no corrosion or pitting. There are no manways or davits on the shell. There was no ground wirefound. There were no anchor bolts. The concrete pedestal was found in good condition with no spalling or cracks. Nonameplate was found. Review of the UT readings revealed an average thickness oL070".

Fonndation:The concrete pad appeared in good condition with no relevant cracks or spaIling. There was no vegetation problem found. NoIndication of settlement could be visually noted. This inspector took no settlement measurements. No indication of bottomleakage noted. The containment walls shared with two other tanks were found in fair condition with no spalling or cracks.

Appurtenance:The hopper/funnel was intact with no damage noted. The air vent was found plugged and was removed, cleaned and reinstalled.

<::; .~~......gnature.Inspector: John Montanez - API 653 # I285 ! CWI #8901070 I

11642 Knon Avenue. Garden Grove, CA 92841 .800.273.6091.714.892.9981 • fax 714.898.6172Page 1 of2

TOMAC


T-3

AI-IO

Type: Horizontal TankDiameter: 45 y''' O.D. Length: 73"




EXTERNAL CONT.



Date: 1/]9/2003

Structure:The stairway, platforms and handrails associated with this tank were found in good condition with no corrosion or pitting.

INTERNAL

No internal inspection conducted:

Recommendations:I). Engineering should review the UT readings and deterroine the servjceability of the tank.2). Perform ultrasonic test and external visual inspection in five years.

Signature:~~Inspector: John Montanez - .~.P! 653 #~ 285:' C\VI #89010701

! 1642 Knott .<1.ve~x. G2rden Greve, CA Q2S..H .800.273 6!)Q! • 71~.892.9981 • fax 714.898.6172

Page 2 of2

~",..,\.\lVICE~~ Ultrasonic Technique Report Form('

A1-1\

Customer:AJ;bUf)'EnwonmentalSeDlic_c- _ _ _2542.Sco1tAY~ . __ChiCD Ca 95928


.u.sedOiILOil¥W.ater. . . .._. __ ._. .

Custom"r P.O.:

Job Number:

TM Number: O.1.,o~02,,--_ Date: lLI.2L200L __. .

Description OfCalibration:.JjJ:"_..1lr'_aDd 50' carhoILS1e.eLstejl.b1ock using 3 linear _hacks.on.a2"_screen ... _

PartMaterial:Carhon.Sje~ . _

Piece Number:B _ ----------------- - Configuration To Be Examined:

Yess'" __._.... .._ ... . . _. ._

--- ----_.----------- ----_. _.-

Scanning Tecbnique:SpDt ChecL . ..

Procedure:IM=\IT-5

Codes: ~IA.

Test EquipmentInstrument Used: 11 S K

---- ----_.__ ._------

7IDMS:2. . . Surfuce Preparation: ---- -._------.• -- _._----Angle Used: StmightBeamlPitch Catch . __ ... _

Search Unit: .5Q' D.ia..5 Mlli.Pulse.Echo

Couplanl: Ultra Gel

Sketch:

Surfuce Condition: Good . ..._. _

Finding;:

The lIT readings on the shell were from _070' to 080'. theheads were also from .070' to 080, the 3' nozzle was aU.060" and the 2' nozzles was from .140' to .160'. NoJlli!il!J' was noted. See wawing attached.

Technician: i~HWmfo'fz~~:----- Level: _IL

11642 Knott Avenue. Ganlen Grove. CA 92841 • 800_273.6091 .714_892.9981 • rex 714_898_6172

-------..--~----___c_---~---lOH EIO/lIOd 119-1 9Y6l6E90lE NOOO~3~ ONNl'i30-WOJ J

TANK # T-3CARBON STEEL45'-3/4"0.0.73" L

12

USED OIL

5

11

1 J I

2"t,

2

3 4 6 7 8 9

---@

1) T-.240" 2) T - .240" 3) T - .250" 4) T - .240" 5) T - .240" 6) T - .250" 7) T - .240" 8) T - .240" 9) T - .240"N - .245" N - .245" N - .250" N M .245" N - .240" N - .245" N - .240" N - .235" N - .245"B - .240" B - .240" B - .245" B - .240" B - .240 B - .240" B· .240" B - .240" B - .240"S - .250" S - .245" S - .250" S - .250" S - .240" S - .245" S - .245" S - .235" S - .246"C - .250"

10) T - .235" 11) T-.240" 12) T-.240" 13) T - .220" 14) T-.240" 15) N-.240" 16) T-.195" 17) T-.210"N - .235" N - .235" N - .240" N· .230" N - .240" E - N/A" N - .200" N - .210"B - .240" B - .240" B - .240" 8 - .230" B - .230" 5 - .240" B - .200" B - .200"5 - .235" 5 - .235" 5 - .240" 5 - .235" 5-.240" w- N/A" 5-.195" 5 - .210"

C - ,240"

ASBURYENVIRONMENTAL Inc.2549 Scott, CA 95928

TANKNO

T-3INSPECTED BY:

J. MONTANEZ

Ultrasonic Thickness 1:1>Inspection

0"1_19_2003 I":1'4-T3 I t"1:~~~'h~J2Tur¥~ryJE:~a!n~,QARtlEi'l GROVE. CAonll., FAX: 7'••~Koe\n

[~]Eichleay



Attachment No.2

Structural CalculationsFoundation, Anchorage, &Structural Integrity

For T-1, T-2, T-3

n?D WiI~· Pa~ R33d, sjt~ seG • C:r:c.crd, Calikrnic 94528 • ~£:'~ £25.63S.7G({:· Fax 925.689.7006 • www.eichleay.rom

(~JEichleayCalculation Cover Sheet

Job No: 30558 IDiscipline: Structural I No. of Sheets: 19 .

TitleClient: Asbury Environmental Services Project Location: Chico Transfer Site

2549 Scott AvenueChico. CA 95928

SubjectAssess Structural Adequacy of Tanks, Tank Anchorage. andFoundation

VI'OFESSIO~

~~\'-H.Ao~q'tableofC.ontents ~0~ ~%

:ii.>" :C-.' - .': . 'C',', ,':: ",' :(.-,,' " -

CC~~~7 gJilSubject Page Nos.~ .E:!'1'~jl1. Anchorage & Foundation Check for 10,000 gallon 1-10\A. ~tank. T-1

'-?I OfU "2. Strap Design - 10.000 gallon tank. T-1 11-12 ~FCAL\fW3. Structural Integrity Tank Shell - 10,000 gallon, 13

T-1

4. Structural Integrity Tank Shell - 1,000 gallon. T-2 14

5. Structural Integrity Tank Shell - 500 gallon. T-3 15-16

6. Check of Containment Wall 17-19

Design CriteriaSeismic Load based on 1994 UBC. Seismic base shear is consistent with value obtained using formula within themost current code - 2001 California Building Code.

.~:~:trtG~~ofr(:)rmul:al?Referen(?~~.

Check of Tank Shell based on "Stresses in Large Horizontal Cylindrical Pressure Vessels on Two Saddle Supports' byL.P. Zick. otherwise known as Zick Analysis

PV Elite Analysis of 10,000 gallon vessel performed in 1998

Roark 5th Edition, Article 12.7

Preliminary Calculation 0 Final Calculation [gJ

0 1/30103 R. SitjarlS. Adranly S. Adranly 1/31103

Revision I Date I Calculation By Checked By Date Approved By Date, , ,

0:\3:::558\5.(: DeslQn DCoQ.!ments\Studles Reports·,.Tank CaiCt.'lation Cover Sheet.docRevision 3, 6/12100

~NOTU

~

~"P'-ll"lw,~14

~

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I~

A66lJ"" E,.... <I",,"'I1...CHICO TRANSFER ~)lTi

A~""e>\.}l\"""I' COl'-lPI"fIO~S

ft4t- flt.\..C' l'1ePo~oJ'lttl"'lE.""o(~

~ "?I1'1f.. ','1$!'1' ON Yt-1jO"!>$"1' 't.IC'.H·-e.IoY

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II

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SUMP(20">::20")

CAoflIJO...... ,J ~1'v,6.L.'Q~")

r V HIGH· BLOCK.. WAll wrrH 36"

~

10'

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. , (3) SlotS'

STAIRS ANDPLATFORMS

B'.o"QJ X '2.1-'.4" 0·2.E> i .... '!She-II

B'2..~o :. ql,i-OO 110"be.

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\ Of 00" ~o,.llON>

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CURS

lS'-6~

"ills" 1"~ I: ...5" QIA .\.5" O'.l<I~, 00 GA....LONGi.:s ~ ELF SERVE

I., I' 1u- 0 ;104 ~.. "I If UBUC TANKIi' ..,11 j,.... '.-,r;.o" ~ 1'61-\1"" .

ik9.~. 12'-q,--<" I" 5"'~h$i:'lo\t _ I 6'-0" ---\-r;l i '". ,WOUNOKElE' '" J6 (2) CONG.<",~ -., _~:./ "1" ,"'"

'ii' I SAOgL~.s•. , "'..L $AJDLES S~E _. L '-0": I i ~!, ,-:1" : '1':' CE:T,l.l'~S~-1 ~., ~:l:! ,.I

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MANWAY i't;;\"' it ~, Eo'; le!~ 'II i, ~ I',i 2~B 5.:' S"52ee04 !I I' L9 I!I ~-........(~~o~ DCo"1d.J : i: i~ nI :

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LINK FENCE ~Y'.8"HIGH , I ' 'I ' 'I'r ~ HI H BLOCK 'I '11(3) SIDES 7'-X~" , I \ ,!! I "~W.AU WITH 36" : I I;

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Chico, CA 95928

Attachment No.3

Excerpts from Chico General PlanFlood & Seismicity

1390 Wiilaw Pass Road, Suiie 600 • COlcord, California 94520 • Tei 925.689.7000· Fax 925.689.7006 • www.eichieay.com

___ Dam Inundation Areas

November 1994

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City of ChicoGENERAL PLAN

Flood and DamInundation Area

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SEISMIC RISK TO DEVELOPMENT

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8-7

Unreinforced Masonry Buildings (URMs). The state's comprehensive URM law,which mandates certain actions for cities, is applicable only to cities located in Seismic HazardZone 4 or higher; the Planning Area is in Seismic Zone 3.

Liquefaction. There is a high potential for liquefaction in the Planning Area along theSacramento River and a moderate potential for liquefaction in the area east from the SacramentoRiver to Highway 99. East of Highway 99, there is a generally low potential for liquefaction,except for areas along stream channels.

Ground Shaking. Earthquakes generated on the active Cleveland Hill, List ChanceHoney Lake, and Midland-Sweitzer faults could result in strong ground shaking within the City.

The potentially active Monocline Fault transverses the eastern portion of the PlanningArea from the northwest to the southeast. Potentially active faults are those that have moved inPleistocene time (11,000 - 1.8 million years) and the probability of a significant earthquakeoccurring is considered low. Additionally, the potentially active Foothills Shear Zone lies adjacentto the southeast corner of the Planning Area.

Fault Rupture. The state has not designated any Alquist-Priolo Special Studies Zoneswithin the Planning Area. nor are there any known or inferred active faults. Thus. the potentialfor ground rupture within Chico is considered very low. Known existing faults in the PlanningArea are mapped in Figure 8 of the MEA.

SEISMICIT~ 6f.t:. FL""'" ~ 't>M' \ """"''''/><'1 'ON ....«."-/>.~ote OlJ"fLltJE. ~ LOC"'-noN OF "'Tt!.AA'Sf£.1Z..SIft

The ~lanning Area is located in one of the least active seismic regions in California(Classified by the state as Seismic Hazard Zone 3). There are no active (those that have movedin Holocene time, I.e. last I I ,000 years) faults in the Planning Area. The Cleveland Hill Faultis the closest active fault to the Planning Area, approXimately 17 miles southeast.

The City requires a structural analysis for any proposed change in the type of occupancyof an unreinforced masonry building which results in an increased hazard to life and/or publicsafety. Under the authority of the Building Code, the City may require reinforcement of thebuilding as a condition of approving a certificate for the new occupancy. The objective of thispolicy is to ensure that there will be no increased risk to occupants of these buildings. However.

~)(c.f,t2-f'f foeoM el-tl(.() G,E-oJ~eAt.. 1"1.-"""'\(~E f' -rr1'L.E: 22., ';'f.e.:1 I ON (.<.'Z::J.O· 14· boll. Aj

8.2 SEISMIC AND GEOLOGIC HAZARDS~1-rE. t1E-f:1'5 ?~ISKlc. S1'I<"'l>I<lO't:>_ NO 1"/0.01.;1' uWI'Il-'>.l "3.000 Ii· OF F,IOL,-ry

Seismic and geologic hazards represent constraints on development that need to beconsidered in the General Plan to protect public health and safety. Section 10.5 of the MasterEnvironmental Assessment provides a detailed discussion of the seismic and geologic hazards inthe Planning Area. A summary follows.

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