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u n i t e D S tat e S

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ACTIVE

LIMITS OF EXISTING OPERATIONS AREA

PROPOSED WASTE FOOTPRINT

RECENTLY PERMITTED LANDFILL

EXISTING WASTE FOOTPRINT

LIMITS OF DISTURBANCESURFACE IMPOUNDMENTP

SOIL STOCKPILE

AREA

B-18PROPOSEDCLASS I/II LANDFILL

EXPANSION

B-17 CLASS II/III LANDFILL

B-19CLASS II/III

AREA

B-19CLASS I/II

AREA

P-10

P-11

P-9

B-13

B-15 B-16

B-14

B-18 RETENTION BASIN (TO BEREALIGNED AS PART OF PROJECT)

PROPOSEDSTORMWATER RETENTION BASIN

EAST RETENTION BASIN

WEST RETENTION BASIN

DRUM STORAGE UNIT

PCB-FLUSHING STORAGE UNIT

NORTH RETENTION BASIN

P-16

P-15

P-14

MP-1

LIMITS OF EXISTING OPERATIONS AREA

LIMITS OF EXISTING OPERATIONS AREA

COMBINEDCLOSURE

AREA

Explanation

Air Monitoring Station

Detection monitoring well

Evaluation monitoring well

Corrective action well

Gradient well

Piezometer

Landfill gas monitoring well

Soil gas well

Soil moisture well

X 2800 FT 800 FT1100 FT

2000 FT

PROPOSEDEXPANSIONIN ORANGE

Air, Soil Vapor, Surface Water, and Groundwater MonitoringWaste ManageMent, Inc. • KettleMan HIlls FacIlIty

Monitoring Requirements:

Under the DTSC Hazardous Waste

Permit, Waste Management must

always monitor for chemical releases

to air, soil vapor, surface water, and

groundwater, at the Kettleman Hills

Facility. The Central Valley Regional

Water Quality Control Board and the

US Environmental Protection Agency

work with DTSC to administer these

monitoring programs.

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air Monitoring Three air monitoring stations collect air samples during a 24-hour period every 12 days. This monitoring system also includes a meteorological station. The monitoring stations are located to detect chemical concentrations coming from facility operations. Regulatory agencies have monitored facility air emissions at the site since 1986. DTSC has analyzed site airborne data fora more comprehensive list of chemicals since 2006. Predominant winds at the Kettleman Hills facility blow from northwest to southeast. Kettleman City is northeast of the facility.

soil Vapor Soil vapor is found in the air between soil particles below the surface of the ground. Soil vapor at the Kettleman Hills Facility is monitored and sampled for chemical contaminants from two former unlined ponds and for methane gas from landfill areas that contain municipal waste or trash. Regulating agencies review data from the 11 methane monitoring wells and the nine volatile organic compound monitoring wells.

surface WaterSurface water is water that flows or collects on the surface of the ground. No rainfall, stormwater or surface water that contacts hazardous waste is allowed to flow outside the facility’s boundaries. Runoff that contacts hazardous waste is contained and managed as hazardous waste. Other runoff is collected through ditches and culverts to lined retention basins designed to handle the maximum rainfall. Runoff in the basins is allowed to evaporate. Because the area has very low rainfall, surface water rarely collects at the site.

groundwater There are 48 monitoring wells at the Kettleman Hills Facility to detect and track any chemicals released into the groundwater. Samples have been collected from monitoring wells four times yearly for the past 25 years. DTSC and other agencies review the results to determine whether releases to groundwater have occurred. For the facility’s future, DTSC will continue to monitor groundwater at the site.

Air, Soil Vapor, Surface Water, and Groundwater MonitoringWaste ManageMent, Inc. • KettleMan HIlls FacIlIty

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Engineers - ScientistsBusiness Professionalswww.wenck.com

AdministrationBuilding

FinalStabilization

Unit

Bulk StorageUnit 1

Bulk StorageUnit 2

PCB Flushing Unit

Drum Storage Unit

P-14

P-16

P-9

B-19

B-18

B-17

1,300 0 1,300650Feet

Legend

B-17

B-18

B-19

Property Boundary

Hazardous Waste PermittingWaste ManageMent, Inc. • KettleMan HIlls FacIlIty

Facility Diagram

Avenal is 6.5 miles North-West from Waste Management.Kettleman City is 3.5 miles North-East from Waste Management.Hazardous wastes are transported to KHF by truck via I-5 to SR-41.

Project location

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CWMI Kettleman

Hills Facility

Kettleman City

TO SAN FRANCISCO

TO LOS ANGELES

Avenal

Skyl

ine

Blvd

Plymouth Ave

Quail Ave

Utica Ave

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Permitted activityWaste Management accepts almost all solid, semi-solid, and liquid hazardous wastes.

Waste Management may nOt accept:• Class A explosives• Compressed gases• Radioactive materials• Biological agents• Infectious wastes

examples of active Operating Hazardous Waste Units

Hazardous Waste PermittingWaste ManageMent, Inc. • KettleMan HIlls FacIlIty

PCB Flushing Drum Storage

Landfill Unit B-18 Pond P-16

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Preparing for the Inspection

� Review US EPA and DTSC files on the facility

�Prepare a plan for carrying out the inspection safely

�Review all laws, regulations, and permits that apply to the facility

�Prepare all equipment and supplies needed for the inspection

�Invite the local regulator to participate in the inspection

contacting Dtsc’s enforcement Program:Sacramento Regional Office8810 Cal Center DrSacramento, CA 95826-3200

contacting Dtsc:Nathan Schumacher, Public Participation Specialist8800 Cal Center DriveSacramento, California 95826Email: NSchumac@dtsc.ca.govPhone: (866) 495-5651 Fax: (916) 255-3654

Inspecting the Facility� After arriving at the facility,

meet the operators and give them a list of documents that DTSC and US EPA will review

�Talk with the operators about the facility’s procedures

�Walk through the facility and write down all observations and identify potential violations

�Review the facility’s documents

�After the inspection, meet with the operators and provide them with a summary of any noted violations

completing the Report� Write the inspection report

that explains what was inspected and identifies any noted violations

�Send the inspection report to the facility

�Take appropriate enforce-ment action for any violations

contacting Us/ePa:Amy Miller, 75 Hawthorne Street, WST-3 San Francisco CA 94105Email: miller.amy@epa.gov Telephone: (415) 947-4198

Enforcement ProgramWaste ManageMent, Inc. • KettleMan HIlls FacIlIty

Clovis Regional Office1515 Tollhouse Road Clovis, CA 93611-0522Ignacio Dominguez, ClovisEmail: idomingu@dtsc.ca.govTelephone: (559) 297-3901

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Public comment Period:• Written Comments • Public Hearing• Community Workshops

Public comments Reviewed for consideration

Final Permit Decision & Response to Public comments

Public notice of Proposed Decision

Final Permit appeal Decision

Public Permit appeal Period for the Final Decision

Public comment Period (Dtsc):• Written Comments • Public Comments • Public Hearing/Community Workshop

Public comments Reviewed for consideration

Issued: Final Permit Decision and Final environmental analysis

Proposed Decision and Draft environmental Review analysis

Approve / Deny

Public notice of Proposed Decision

Kettleman Hills Facility Permitting ProcessWaste ManageMent, Inc. • KettleMan HIlls FacIlIty

application Reviewed:• Does application meet regulatory requirements?

evaluation for Protectiveness of Human Health & the environment • What are effects on Human Health?• What are effects on engangered species?• What are effects on cultural resources?

Proposed Decision to Issue or Deny the Permit

application Received for a Permit Renewal

Us ePa Permitting for tsca PcB Disposal/storage/transfer

Public comment Period on the Permit application (Facility)

application Received for a Permit Modification

Dtsc Permitting for Hazardous Waste Disposal

application Reviewed:• Does application meet regulatory requirements?

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30-Day appeal Period to state Water Resources control Board

Public Hearing to consider Permit by the Board

• Publication of agenda 10 days before hearing• Adopt/not adopt Waste Discharge

Requirements by the Board• Permit final if adopted

Respond to comments and Prepare Permit for Board consideration

Public notice of Proposed Decision

Public Review & comment Period:• 45 Days • Written Comments

Kettleman Hills Facility Permitting ProcessWaste ManageMent, Inc. • KettleMan HIlls FacIlIty

Permit application Found complete• Do the documents provide adequate information to

draft the permit?

comply with california environmental Quality act

• What are effects on water quality?• What mitigation measures are necessary to

protect water quality?

Draft Permit by staff(Waste Discharge Requirements)

Permit application (Report of Waste Discharge)

central Valley Regional Water Quality control Board

Permitting for Discharges of Waste to land

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Human Health Risk Assessment at K.H. FacilityWaste ManageMent, Inc. • KettleMan HIlls FacIlIty

How Dtsc Determines Risk from Kettleman Hills landfill air emissionsUnder oversight by DTSC a health risk assessment was conducted to determine the health risks from permitted KHF activities. The health risk assessment studies the effect of chemicals released to the air from the KHF Landfill and how they travel by wind and expose ranch workers and ranch residents near KHF and residents of Kettleman City and Kettleman Junction.

Health Risk assessmentThe health risks from exposure to air emissions from the KHF Landfill were calculated for different receptors using monitoring data that has been collected for the last 5 years. The health risk assessment demonstrated that there is no significant health risk for Kettleman

City Residents, Kettleman Junction Residents, Kettle-man City Area Ranch families or a Ranch Worker at Landfill Fenceline. DTSC continues to require air monitoring, quarterly air monitoring reports and an annual update of the Health Risk Assessment .

Benzene chromium Formaldehyde

air Dispersion of . . .

Health Risk: Red, orange, yellow. . . . Significant health risk to residents Green, blue, gray . . . . . . Not significant health risk to residents

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Kettleman City Resident

Kettleman Junction Resident

Hypothetical Resident Rancher

RanchFamily

3.5 M

ILES

KHF Boundary

Predominant W

ind Direction

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Critical Distances Affecting Human Health Risk Waste ManageMent, Inc. • KettleMan HIlls FacIlIty

Distance Between Maximum air Impactsat chemical Waste Management and Kettleman city

KHF Boundary

PCB Particle Phase

PCB Particle Bound Phase

PCB Vapor Phase41

Kettleman City

4 miles from maximum plume extent to Kettleman City

5