Exhibit_A-4_-_Health_and_Safety_Plan.pdf

HEALTH AND SAFETY PLAN

E S

Richard J. Donovan Correctional Facility Otay Mesa, California

APN 646-040-20

December 5, 2024

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California Department of Corrections and Rehabilitation (CDCR) Health and Safety Plan

Bid Number C5613351-D Exhibit A-4

PREPARED FOR

California Department of Corrections and Rehabilitation 9838 Old Placerville Road, Suite B Sacramento, California 95827

PREPARED BY

Weaver Consultants Group of California, LLC 1 Technology Drive, Suite C515 Irvine, California 92618-5302

Project No. 5989-300-02-06

HEALTH AND SAFETY PLAN

ENVIRONMENTAL SERVICES

Richard J. Donovan Correctional Facility Otay Mesa, California

APN 646-040-20

December 5, 2024

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California Department of Corrections and Rehabilitation (CDCR) Health and Safety Plan

Bid Number C5613351-D

HASP AUTHORIZATION

The undersigned have reviewed this Health and Safety Plan (HASP) and recognize that when this form is completed, the attached HASP is approved for field activities at the above-referenced site. Changes to the HASP shall be documented in writing and approved by the Health and Safety Director.

PLAN PREPARED BY:

12/05/2024 Colton Scott Senior Staff Geologist

Date

PLAN APPROVED BY:

12/05/2024 Michael Rendina Health & Safety Director

Date

12/05/2024 Deke Siren Project Manager

Date

PLAN REVISED BY:

Name Date

REVISION APPROVED BY:

Health & Safety Director Date

Project Manager Date

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California Department of Corrections and Rehabilitation (CDCR) Health and Safety Plan

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TABLE OF CONTENTS

Page

HASP AUTHORIZATION ........................................................................................................... i LIST OF TABLES ........................................................................................................................ v

LIST OF FIGURES ...................................................................................................................... v

LIST OF ABBREVIATIONS AND ACRONYMS ................................................................... vi

1.0 SITE-SPECIFIC HASP SUMMARY

1.1 SITE DESCRIPTION

1.2 ANTICIPATED HAZARDOUS SUBSTANCES

1.3 MINIMUM PERSONAL PROTECTIVE EQUIPMENT (PPE)

1.4 AIR MONITORING AND RESPIRATORY PROTECTION

1.5 EMERGENCY CONTACTS

1.6 NEAREST HOSPITAL

1.7 TAILGATE MEETINGS

2.0 PURPOSE AND SAFETY ORGANIZATION

2.1 HEALTH AND SAFETY DIRECTOR

2.2 PROJECT MANAGER

2.3 SITE SAFETY OFFICER

2.4 WORK PARTY

2.5 CONTRACTORS

3.0 CODE OF SAFE WORK PRACTICES

4.0 TASK HAZARDS AND REQUIRED CONTROL MEASURES

4.1 ACOUSTIC HAZARDS

4.2 BIOLOGICAL HAZARDS

4.3 CONFINED SPACE/OXYGEN DEFICIENCY HAZARDS

4.4 ELECTRICAL HAZARDS

4.5 MECHANICAL HAZARDS

4.6 MEDICAL HAZARDS

4.6.1 Chemical Exposures

4.6.2 Temperature Hazards

4.6.2.1 Heat Stress

4.6.2.2 Cold Stress

4.7 PHYSICAL HAZARDS

4.8 EXPLOSIVE HAZARDS

4.9 OTHER HAZARDS

5.0 AIR QUALITY MONITORING

5.1 PERSONAL AIR QUALITY MONITORING

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California Department of Corrections and Rehabilitation (CDCR) Health and Safety Plan

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5.2 COMBUSTIBLE GASES AND EXPLOSIVE AND OXYGEN DEFICIENT/ENRICHED

ATMOSPHERES

6.0 PERSONAL PROTECTIVE EQUIPMENT

6.1 RESPIRATORY PROTECTION UPGRADE GUIDELINES

6.1.1 Respirator and Cartridges

6.2 LEVEL D PPE

6.3 LEVEL C PPE

6.4 LEVEL B PPE

6.5 LEVEL A PPE

6.6 ADDITIONAL SAFETY EQUIPMENT

7.0 DESIGNATED WORK AREAS

7.1 SUPPORT ZONE

7.2 CONTAMINATION REDUCTION ZONE

7.3 EXCLUSION ZONE

8.0 DECONTAMINATION PROCEDURES

8.1 PERSONNEL

8.2 EQUIPMENT

9.0 WASTE MANAGEMENT

10.0 SANITATION FACILITIES

11.0 SITE SECURITY AND CONTROL

11.1 SITE SECURITY

11.2 WORK HOURS

11.3 AFTER HOURS/WEEKEND OPERATIONS

12.0 TRAINING AND MEDICAL SURVEILLANCE REQUIREMENTS

12.1 HAZARDOUS WASTE OPERATIONS TRAINING

12.2 HAZARD COMMUNICATION PROGRAM

12.3 SITE-SPECIFIC PRE-JOB TRAINING

12.4 DAILY SITE SAFETY TRAINING

12.5 MEDICAL SURVEILLANCE

13.0 EMERGENCY RESPONSE PLAN

13.1 PRE-EMERGENCY PLANNING

13.2 PERSONNEL ROLES, LINES OF AUTHORITY, AND COMMUNICATION

13.3 EMERGENCY RECOGNITION AND PREVENTION

13.4 SITE RESOURCES/EMERGENCY EQUIPMENT

13.5 EMERGENCY SIGNALS

13.6 SAFE DISTANCES AND PLACES OF REFUGE

13.7 EMERGENCY SITE SECURITY AND CONTROL

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California Department of Corrections and Rehabilitation (CDCR) Health and Safety Plan

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13.8 SITE EVACUATION ROUTE

13.9 CONTINGENCY PROCEDURES

13.9.1 Cave-In

13.9.2 High VOC Levels in Work Zone

13.9.3 High VOC Levels at Site Perimeter

13.9.4 Fire

13.9.5 Flash Flood

13.9.6 Material Spills

13.9.7 Earthquake

13.9.8 Severe Weather

13.9.9 Vehicle Accidents

13.9.10 Workplace Violence

13.9.11 Emergency Decontamination Procedures

13.10 EMERGENCY MEDICAL TREATMENT AND FIRST AID

13.11 EMERGENCY ALERTING AND NOTIFICATION PROCEDURES

TABLES

FIGURES

APPENDIX A: STANDARD FORMS

APPENDIX B: SDS CHEMICAL HAZARD SHEETS

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California Department of Corrections and Rehabilitation (CDCR) Health and Safety Plan

Bid Number C5613351-D

LIST OF TABLES

Table No. Title

1 Project Work Activities and Hazards Identification 2 Chemical Toxicity and Exposure Information

LIST OF FIGURES

Figure No. Title

1 Site Location Map 2 Site and Vicinity 3 Conceptual Fill Map 4 Profile A

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California Department of Corrections and Rehabilitation (CDCR) Health and Safety Plan

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LIST OF ABBREVIATIONS AND ACRONYMS

APN Assessor’s Parcel Number APR air-purifying respirator Cal/OSHA California Division of Occupational Safety and Health CDCR State of California Department of Corrections and Rehabilitation CPR cardiopulmonary resuscitation °F degree Fahrenheit HASP Health and Safety Plan HR heart rate HSD Health and Safety Director LEA San Diego County Department of Environmental Health, Solid Waste

Local Enforcement Agency LEL lower explosive limit MSHA Mine Safety and Health Administration NIOSH National Institute for Occupational Safety and Health OSHA U.S. Occupational Safety and Health Administration OVA organic vapor analyzer PF protection factor PID photoionization detector PM Project Manager PPE personal protective equipment ppmv part per million by volume SDS Safety Data Sheet SSO Site Safety Officer TLV threshold limit value UN United Nations VOC volatile organic compound WCG Weaver Consultants Group of California, LLC

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California Department of Corrections and Rehabilitation (CDCR) Health and Safety Plan

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1.0 SITE-SPECIFIC HASP SUMMARY

This Health and Safety Plan (HASP) has been prepared by Weaver Consultants Group of California, LLC (WCG), the successor in interest to Avocet Environmental, Inc.1, to cover environmental services related to the characterization and stabilization of illegal fill material imported onto part of Assessor’s Parcel Number (APN) 646-040-020 in Otay Mesa, California (the property). The property is owned by the State of California, Department of Corrections and Rehabilitation (CDCR) and is one of several parcels developed with the Richard J. Donovan Correctional Facility (RJ Donovan Facility). Planned and potential environmental services to be provided at the site are summarized in Table 1. The HASP describes chemical and physical hazards that may be encountered during site work and the “generic” hazards associated with working with and around heavy equipment, such as drill rigs and excavating equipment. The HASP specifies the procedures and measures to be followed to eliminate or minimize these hazards. WCG personnel involved in field work at the site are required to follow this HASP.

Subcontractors under WCG’s control are required to follow this HASP or health and safety procedures that are at least as stringent.

The remainder of this section is site-specific and is written in plain English, with minimal technical jargon, to make the information more accessible and understandable. The remainder of this HASP provides more detailed, generic technical information

1.1 SITE DESCRIPTION

For the purpose of this HASP, the main area of focus is where the illegal dumping appears to have occurred. This area, referred to as the dump site, is also referred to as the investigation area based on context. The property location and the approximate boundary of the illegal fill material are shown in Figure 1. A larger-scale plan of the illegal fill area and vicinity is presented in Figure 2.

The site is part of an approximately 406-acre property located approximately 0.3 mile northwest of the San Diego County juvenile detention facilities and 0.3 mile north of the RJ Donovan Facility. The site is on undeveloped land that serves as a “buffer” around the RJ Donovan Facility located south of the site. The site is accessed via a small service road off of Alta Road, with signage at the entryway identifying the site address as 405 Alta Road. The site is bordered by APN’s 646-040-07-00 and 646-040-08-00, known as the Ingalls properties, to the north; Otay Water District Pump Station 870 2 and Roll Reservoir, the San Diego Regional Firearms Training Center, several San Diego County juvenile detention facilities (including the Facility 8 Detention Facility, the George F. Bailey Detention Facility, and the East Mesa Juvenile Detention Facility), and Alta Road to the east; and the RJ Donovan Facility and undeveloped land to the south and west. The location of the site is shown in Figure 1 and a plan of the site is presented in Figure 2.

On December 31, 2015, the San Diego County Department of Environmental Health, Solid Waste Local Enforcement Agency (the LEA) received a complaint referral from the County of San Diego Watershed Protection Program that the Ingalls properties was operating an unauthorized mobile

1 On June 1, 2024, Avocet became part of Weaver Consultants Group, LLC (www.wcgrp.com) and is now Weaver Consultants Group of California, LLC.

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California Department of Corrections and Rehabilitation (CDCR) Health and Safety Plan

Bid Number C5613351-D Exhibit A-4 http://www.wcgrp.com/ home park and that imported fill had been illegally dumped on the south-adjoining CDCR property. The LEA investigated the complaint on January 6 and 25, 2016 and, based on its findings, issued Notice and Order No. 2016-02 to CDCR for two violations, one for the disposal of solid waste without having a solid waste facility permit, and the second for operating a solid waste facility without a solid waste facility permit. Pursuant to these violations, Avocet Environmental Inc. (Avocet) assessed the inert fill site in accordance with a November 2016 work plan approved by the LEA. Avocet conducted the assessment in April 2017, which was documented in a report dated July 12, 2017. In brief, the assessment involved 33 trenches, most of which were excavated through the entire thickness of the inert fill until underlying, native soil was encountered. Avocet identified five different types of imported fill materials, fill types Af1 through Af5. The locations of the trenches and the limits of the different fill types are shown in Figure 3, and a cross section through the filled area is presented in Figure 4. Representative samples of the fill materials were analyzed for total petroleum hydrocarbons, volatile organic compounds (VOCs), semivolatile organic compounds, metals, polychlorinated biphenyls, asbestos, and pH; however, the reported concentrations, where detectable at all, were not of concern. Based on the assessment, Avocet estimated that the inert fill covers approximately

4.8 acres, with a volume of approximately 44,000 cubic yards.

1.2 ANTICIPATED HAZARDOUS SUBSTANCES

Based on the investigation of the subject site, common compounds of potential concern at the dump site include benzo(a)pyrene and silica dust. Selected health and safety information pertaining to these compounds are summarized in Table 2.

Health and safety information pertaining to other generic hazards, such as heat stroke, insect bites, and the like, is provided later in this HASP.

1.3 MINIMUM PERSONAL PROTECTIVE EQUIPMENT (PPE)

The minimum PPE required for workers engaged in environmental services at the site during which potential exposure to the hazardous substances listed above is modified Level D, as follows:

• hard hat

• safety glasses

• high visibility safety vest over at least a tee shirt

• long pants

• steel-toed shoes or boots

In addition, each worker must have hearing protection devices with them at all times while at the site for use as needed. Each worker must also have a half- or full-face air-purifying respirator (APR) available should ambient air quality monitoring indicate that such protection is required.

APRs provide no protection in an oxygen-deficient atmosphere

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Visitors to the site must wear hard hats and safety glasses and have hearing protection available for use as needed. Visitors are not required to have APRs available but will not be allowed into any work area in which ambient air quality monitoring dictates that workers must wear half- or full-face respirators.

1.4 AIR MONITORING AND RESPIRATORY PROTECTION

Air monitoring at the site will focus on dust generation while field procedures will focus on preventing the same. As the illegally dumped fill has been exposed to the elements for a significant amount of time, VOCs are considered unlikely to be present. However, potential VOCs are to be monitored with a photoionization detector (PID) or other organic vapor analyzer (OVA) during excavation and handling of disturbed material. If the PID or OVA detects VOCs, all work is to stop and the Project Manager (PM) is to be contacted. Work will only resume after approval from the PM and Health and Safety Director (HSD).

Preventative measures to be implemented during field activities will include wetting or misting exposed ”soil” surfaces as necessary with potable water prior to soil disturbance, wetting or misting disturbed soil as necessary during earth moving tasks, and handling disturbed soil in such a way as to minimize the potential generation of dust. For example, during the planned concrete debris removal and stabilization program, the backhoe operator will be instructed to minimize the potential for dust generation by carefully depositing spoil, as opposed to dropping it from several feet.

If visible dust is observed in the immediate work area, the soil disturbance activity will be halted until better or more frequent dust control measures can be implemented. If control measures appear inadequate, then work will stop and only resume with the approval of the PM and HSD.

As warranted, workers will be instructed to don APRs fitted with HEPA, P100 cartridges. If at any time visible dust is observed migrating toward the site perimeter, the soil disturbance activity will be halted until better or more frequent dust control measures can be implemented. During soil disturbing activities, air monitoring and respirator protection will be in accordance with the following:

Time or Action Level Action

Initial site arrival Visual survey

Earthwork in progress, no visible dust

Workers in Level D, use potable water to suppress dust as necessary in active earthmoving areas. Monitor exposed areas using a PID or OVA.

If PID readings indicate the presence of VOCs, contact the PM or HSD and don APRs as approved by the PM/HSD. If PID readings exceed 50 parts per million by volume (ppmv), stop work and contact the

PM/HSD.

Visible dust in worker breathing zone Implement additional or more frequent dust suppression measures.

Visible dust near site perimeter

Stop work until additional or more frequent dust suppression measures can be implemented

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California Department of Corrections and Rehabilitation (CDCR) Health and Safety Plan

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If OVA readings exceed 50 ppmv or conditions require PPE upgrades to Level B or above, the Health and Safety Director (HSD) must be notified and this HASP must be amended.

1.5 EMERGENCY CONTACTS

In a medical EMERGENCY, summon Emergency Services by dialing 911.

When calling for emergency assistance, provide the following information:

• Your name

• Your telephone number or a number at your location

• Nature of the emergency

• Names of exposed or injured persons

• Actions already taken

IMPORTANT: The recipient of the call should hang up first — not the caller.

After summoning emergency services or in a non-emergency situation, contact one or more of the following, as appropriate, based on the situation:

WCG Contacts

Deke Siren (WCG Project Manager) ........................................... Office (949) 296-0977 Ext. 113 ............................................................................................................. Cell Phone (714) 742-3355 Mike Rendina (WCG HSD) ......................................................... Office (949) 296-0977 Ext. 103 ............................................................................................................. Cell Phone (949) 933-6031 Colton Scott (Site Safety Officer) ................................................. Office (949) 296-0977 Ext. 137 ............................................................................................................. Cell Phone (979) 824-5156

California Department of Corrections and Rehabilitation

Mike Maeda (CDCR PM) .......................................................................... Office (279) 223-2759 ........................................................................................................................ Cell (909) 703-9912 Steven Stallings (Correctional Plan Manager) ............................................. Office (619) 661-7852

Other useful emergency contact numbers include:

San Diego Fire-Rescue Department .............................................................(619) 533-4300

San Diego Police Department .......................................................................(619) 424-0400

Poison Control Center (California) ......................................................................... (800) 764-7661

Chemical Transportation Emergency Center (CHEMTREC) (Emergency use only) ............................................................................................ (800) 424-9300 (Non-Emergency) .................................................................................................. (202) 887-1255

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California Department of Corrections and Rehabilitation (CDCR) Health and Safety Plan

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1.6 NEAREST HOSPITAL

In the event of a medical emergency, the nearest hospital equipped with an emergency room is:

Sharp Chula Vista Medical Center 751 Medical Center Court Chula Vista, California 91911 24-Hour Emergency Telephone (619) 502-5800

The hospital is located approximately 13.4 miles north west of the site. The driving time from the site is approximately 19 minutes. A map showing a route to the hospital is provided below

Driving Directions

Head east on Walnut Ave. 479 ft Turn left onto Western Ave. 0.1 mi Turn right onto Orangethorpe Ave. 0.2 mi Turn right onto Beach Blvd. 0.2 mi Merge onto CA-91 E/State Hwy 91 E 0.2 mi Merge onto CA-91E/State Hwy 91 E 3.0 mi Take exit 27 for Euclid St. 0.2 mi Turn right onto N Euclid St. 0.4 mi Turn left onto W La Palma Ave. 0.4 mi Turn left toward emergency room 144 ft

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California Department of Corrections and Rehabilitation (CDCR) Health and Safety Plan

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1.7 TAILGATE MEETINGS

Health and safety “tailgate” meetings will be held prior to starting work each day to discuss safety procedures, familiarize personnel with potential hazards, and answer any questions. The meeting will be conducted by WCG’s Site Safety Officer (SSO) and all site personnel involved with the project work activities will be required to attend. A daily sign-in sheet will be used to document attendance of this meeting. An example of a form for documenting attendance is included in Appendix A. All incidents, including any near misses, shall be reported to WCG’s HSD and PM.

Reporting forms are included in Appendix A.

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California Department of Corrections and Rehabilitation (CDCR) Health and Safety Plan

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2.0 PURPOSE AND SAFETY ORGANIZATION

WCG’s goal is to maintain a safe and healthy work environment during the performance of covered project activities at any site. The generic health and safety procedures outlined in the following sections have been developed to fulfill this goal and achieve the following objectives:

• Instruct WCG employees and contractors on procedures to minimize the potential for injury or exposure to hazardous conditions.

• Train WCG employees and contractors on the proper action to be taken if a hazardous condition cannot be avoided by engineering controls.

• Provide guidelines for emergency response for known hazards and hazardous situations.

• Specify actions required to comply with applicable U.S. Occupational Safety and Health Administration (OSHA), California Division of Occupational Safety and Health (Cal/OSHA), and state and local regulations or other requirements.

The procedures are intended to serve as guidelines that allow the onsite and management personnel to respond to changing conditions and make professional judgments regarding the interpretation of monitoring data and related control measures. Proposed changes to this HASP should be discussed with WCG’s HSD and Project Manager and approved by the HSD prior to implementation. Should site-specific conditions change significantly (e.g., additional chemicals are discovered) or additional work activities are required that are not covered in this HASP, it may be appropriate to prepare a HASP addendum for approval by the HSD. After HSD approval, no additional work activity will be performed until appropriately trained, qualified, and outfitted personnel are available. Site personnel will be informed of changes to the HASP at the daily tailgate meetings and will be required to sign the HASP addendum to indicate that they have read and understand it.

2.1 HEALTH AND SAFETY DIRECTOR

The HSD will review and approve this HASP and any amendments prior to their adoption. The HSD will assist with implementation of the HASP and provide project support on health and safety issues. The HSD will consult with the Project Manager if revision of this HASP is required. The HSD will verify field personnel training, medical surveillance, and respirator fit test requirements.

The HSD will advise the Project Manager regarding industrial hygiene concerns, interpretation and evaluation of analytical exposure data, and other safety related issues, as needed. Contractor health and safety plans will be reviewed by the HSD.

2.2 PROJECT MANAGER

The PM is responsible for ensuring that the HASP is prepared, reviewed, approved, and properly implemented. The PM will not initiate field activities until the HASP has been approved by the

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HSD and assigned personnel have received the required level of project-specific health and safety instruction. The PM will review and evaluate field and laboratory data as they become available during the course of the project and consult with the HSD and SSO if revisions to the HASP are required. The PM is responsible for the overall health and safety performance and compliance with applicable regulations and is the primary contact in the event of a site emergency. In addition, the PM will ensure that health and safety activities are conducted according to HASP requirements and according to other, relevant company policies and procedures. Onsite injuries, illnesses, and accidents will be reported to the client by the PM/HSD.

2.3 SITE SAFETY OFFICER

The SSO will implement this HASP in the field. The SSO’s authority and responsibilities include, but are not limited to, the following:

• Conduct the daily tailgate meeting with site personnel before work begins each day regarding the contents of the HASP and any approved HASP revisions, the potential hazards that may be encountered (with emphasis on those that may be encountered that particular day), safe work practices, required PPE, and emergency procedures.

• Maintain a copy of the HASP and any approved revisions at the site in an easily accessible area.

• Ensure that PPE required or potentially required by the HASP is available and, when appropriate, worn by personnel working at the site.

• Control access to the exclusion zone and/or work areas as defined.

• Establish emergency evacuation routes and designated meeting places in advance of each work activity and communicate this information during the daily tailgate meeting.

• Coordinate the response to emergencies at the site, direct evacuation, or summon emergency assistance, as necessary.

• Conduct site walk-through inspections on a regular basis.

• Maintain field documentation, including daily tailgate attendance sheets, visitor sign-in sheets, air monitoring data, and site walk-through inspection results.

• Notify the HSD and Project Manager immediately regarding all health and safety problems, emergencies, injuries, illnesses, near-misses, and accidents.

• Assign an alternate SSO if the designated SSO will be absent.

• Suspend work activities when unsafe conditions or work practices are observed at the site.

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California Department of Corrections and Rehabilitation (CDCR) Health and Safety Plan

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• Remove contractor personnel from the project if the contractor is operating in an unsafe manner.

• Notify the HSD and Project Manager of changes in site conditions or in the scope of field activities.

2.4 WORK PARTY

Members of the work party, defined as personnel and contractors working on the project that report to WCG, are required to comply with the health and safety requirements specified in this HASP and, if appropriate, in their corresponding company health and safety manuals. The responsibilities of the work party members include, but are not limited to, the following:

• Read this HASP and observe the Code of Safe Work Practices (Section 3.0).

• Participate in daily tailgate meetings and any project-specific training.

• Implement safe work practices and good personal hygiene for hazardous waste operations.

• When unsafe conditions or work practices are observed at the site, Stop what is being completed, Warn others nearby, Inform the SSO, and Manage the situation

(SWIM).

• Maintain PPE in good working condition.

• Respond to site emergencies, if necessary, and direct evacuation or summon emergency assistance.

2.5 CONTRACTORS

Most contractors have their own health and safety plans and/or company policies that are specific to their specialty services. Contractor management is responsible for making sure their employees follow their company-specific health and safety plans and/or company policies. Contractor management is also responsible for assigning specific tasks to their employees; ensuring that their employees are properly trained and are in compliance with applicable regulations; and allocating sufficient time, materials, and equipment to safely complete activities in accordance with this HASP and their individual health and safety plans.

While engaged in work activities under contract to WCG, contractors shall operate under their own health and safety plan, provided the health and safety requirements in any health and safety plan prepared by a contractor are as stringent as those contained in this HASP. Otherwise, WCG’s HASP will take precedence for those requirements. The HSD will ensure that the health and safety procedures of its contractors are at least as stringent as those presented in this HASP. In the event of a conflict between this HASP and the contractor’s health and safety plan, the HSD will be notified and required to resolve the differences.

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Hazards not listed in this HASP but known by the contractor, or known to be associated with a contractor’s specialty, must be identified by and addressed in the contractor’s health and safety plan and during the daily tailgate meeting prior to beginning work.

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3.0 CODE OF SAFE WORK PRACTICES

WCG personnel and contractors assigned to this project will comply with the following at all times:

• Each day prior to the performance of any field activity, the SSO will review this site-specific HASP with all involved personnel during the tailgate meeting. The meeting will focus on the specific task(s) to be performed, contaminants likely to be encountered, and the current physical condition of the site and work areas. The SSO will also answer questions raised by the attendees. Personnel will indicate an understanding of the HASP requirements and agree to accept and comply with the conditions contained herein by signing and dating the daily tailgate sign-in sheet.

• Workers who refuse to sign the HASP or attend a tailgate meeting will not be allowed to enter any work areas under WCG’s control.

• Visitors entering work areas under WCG’s control, but who will not be performing work, will be familiarized with this HASP and required to sign the visitor’s sign-in sheet. Visitors will typically be required to wear hard hats and safety glasses at all times while onsite.

• Unauthorized personnel will remain outside the exclusion and contamination reduction zones at all times.

• WCG-supervised personnel must be aware of project-related traffic. Additionally, project personnel will be advised that non-WCG-supervised personnel and traffic may be present on site. These individuals and associated traffic will be excluded from WCG-supervised work areas.

• All open holes, trenches, and obstacles will be properly marked, barricaded, covered, and lighted in accordance with applicable regulations.

• Aboveground structures and other obstacles may be present onsite. A complete daily review of such site conditions will be conducted prior to beginning any activity.

• To avoid vehicle collisions with aboveground structures, drivers must walk around their vehicles and observe the locations of all obstacles prior to moving any vehicle.

• The movement and use of vehicles and heavy equipment will be planned and performed with consideration for the location, height, and position of fixtures, structures, and natural features.

• Unsafe conditions or safety concerns will be brought to the attention of the SSO.

If the unsafe condition involves personnel or contractors other than those under WCG’s control, the SSO will notify the HSD, who will contact the client, if needed.

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• At a minimum, Level D PPE is required when performing any field activities related to the project. Level D PPE includes a hard hat, safety glasses, long sleeve shirt, long pants, and steel-toes shoes or boots.

• Work that requires workers to be greater than 6 feet from the ground surface will require fall protection. The HSD will approve the fall protection devices on a case-by-case basis; however, WCG will not be responsible for providing fall protection for contractor activities.

• No WCG-supervised personnel will enter an un-shored excavation deeper than 4 feet below surrounding grade at any time unless a qualified person has determined that it is safe to do so and all applicable OSHA and Cal/OSHA requirements are met. In addition, the WCG Project Manager must specifically authorize entry into any excavation over 4 feet deep. Further, no WCG employee shall approach within 2 feet of the edge of any excavation greater than 4 feet in depth.

• No personnel may enter any confined space unless they are appropriately trained, the necessary safety precautions are taken, and they are specifically authorized to do so by the HSD.

• The SSO and workers will keep track of weather conditions and wind direction to the extent they could affect potential exposure. Work will normally be limited to daylight hours and benign weather conditions. Extremes in temperature and weather conditions may restrict working hours.

• Personnel will be alert to any abnormal behavior on the part of other co-workers that might indicate distress, disorientation, or other ill effects.

• Personnel should never ignore symptoms that could indicate potential exposure to chemical contaminants. Any symptoms or ill effects will be immediately reported to the SSO.

• Personnel with long hair will secure it in a safe manner.

• Loose-fitting clothing that could become entangled in power equipment will not be permitted in the work zones.

• Working while under the influence of intoxicants, narcotics, or controlled substances is prohibited. Persons visually deemed under the influence of alcohol or drugs will be escorted off site immediately and will be prohibited from ever working at the site again.

• All ancillary activities will be located upwind, as determined by a flag or other wind direction-indicating device mounted no less than 4 feet above the ground surface.

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• Workers must wash their hands and faces before leaving the work areas or site, before eating or drinking, and at the end of the workday.

• No smoking is allowed in designated work areas.

• No eating or drinking is allowed within designated exclusion zones.

• Horseplay is prohibited on the site.

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4.0 TASK HAZARDS AND REQUIRED CONTROL MEASURES

The following sections present control measures for typical hazards likely to be encountered during field work.

4.1 ACOUSTIC HAZARDS

The use of heavy equipment may generate noise at or above the Cal/OSHA (Title 8, Section 5095) time-weighted average (TWA) of 85 dBA (decibels, A-scale) within the worker’s hearing zone.

Hearing protection, such as earplugs or earmuffs, will always be available onsite for use by personnel at their discretion or on instruction from the SSO. Hearing protection will be used whenever noise levels interfere with conversation in a normal voice at a distance of 3 feet.

4.2 BIOLOGICAL HAZARDS

Potential biological hazards commonly encountered during site assessment and remediation activates include rodents, snakes, insects, and plants. To minimize these potential hazards, the SSO and workers will:

• Review the identification and habitat characteristics of rodents, snakes, spiders (black-widow and brown recluse), and bees/hornets to avoid bites or stings.

• Identify site personnel with a known reaction to any such bites and/or insect stings.

• Avoid nesting areas and habitats, when possible, and wear protective clothing, hardhat, and safety glasses. Always wear protective gloves when reaching into enclosed spaces, such as well boxes, where animals and/or insects are likely to hide.

• Keep all piping off the ground unless the ends are sealed against animals and insects.

• Review the identification characteristics of poison oak and poison ivy. Avoid contact with these plants and any unknown plants when possible. Wear protective clothing.

• Avoid animal and bird droppings. These often contain mold, fungus, or bacteria that can cause respiratory problems such as lung diseases and allergies. When entering nesting areas, wear protective clothing and use a dust mask or a respirator equipped with dust cartridges.

4.3 CONFINED SPACE/OXYGEN DEFICIENCY HAZARDS

As a general rule, WCG’s employees and contractors will avoid confined space entry and potentially oxygen deficient atmospheres unless the anticipated scope of work specifically includes such activities and the necessary precautionary measures have been taken. Precautionary measures include, but are not limited to, specialized training, the availability of confined space entry equipment and monitoring instruments, comprehensive lock-out procedures, an evaluation of

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Bid Number C5613351-D possible chemical hazards in the confined space, and permitting. HASPs for projects involving confined space entry will include a project-specific confined space entry program, which will consist of information on the confined space(s) and the required safety measures to be implemented. In general, however:

• Entry into confined spaces will be under WCG’s confined space entry program.

• All involved workers will review the confined space program prior to entry into a confined space.

• Prior to entry, workers shall monitor the air inside of the confined space for O2, lower explosive limit (LEL), and H2S.

• Entry into a confined space is prohibited if the oxygen content of the atmosphere is less than 19.5 percent.

4.4 ELECTRICAL HAZARDS

To minimize potential electrical hazards, workers are required to:

• Locate and mark buried electric lines before performing any subsurface work.

• Maintain at least a 10-foot clearance from overhead power lines. Contact utility company for minimum clearance requirement from high voltage power lines.

• If unavoidably close to buried or overhead power lines, have the power turned off with the circuit breaker locked and tagged.

• Properly ground all electrical equipment and use Ground Fault Circuit Interrupters

(GFCI).

• If splicing wires to connect electrical equipment, use proper insulated connectors and wrap with electrical tape.

• If power has been turned off, someone will show the SSO where the power has been turned off so that the SSO can periodically verify that it has not been turned back on.

• Do not perform work on electrical hook-ups and/or equipment when they are located in standing water. When water is present, either drain/dry the area or move the equipment to a dry location.

When necessary, workers are required to use proper lockout and tag-out procedures during equipment maintenance. These procedures include:

• Notify all affected employees that a lockout is required and its purpose.

Confined space entry is not permitted under this HASP. A HASP amendment will be required for confined space work.

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• If the equipment is operating, shut it down in accordance with established procedures.

• Operate the switch, valve, or other isolating device so that the energy source(s), such as electrical, mechanical, hydraulic, and steam, is disconnected or isolated from the equipment. Stored energy, such as in capacitors, springs, elevated machine members, rotating flywheels, pressurized hydraulic systems, and other pressurized systems must be dissipated by methods such as grounding, repositioning, blocking, or bleeding as appropriate.

• Lock out energy isolating devices with an assigned individual lock.

• Make sure no personnel are exposed and then operate the equipment activation device to make sure the equipment will not operate. Return the activation device to the OFF or neutral position immediately after this test.

• Attach non-reusable “Accident Prevention” tags that are capable of resisting at least 50 pounds of pull. The tags must state the reason for the lockout, the name(s) of the employee(s) working on the equipment and how they may be reached, the date and time the tag was put in place.

4.5 MECHANICAL HAZARDS

To minimize potential mechanical hazards, the following requirements shall apply:

• Only qualified operators will be allowed to use mechanical equipment.

• Designate routes at the site for mobilization and use of heavy equipment and trucks.

• Do not stand near or out of sight of an operator using concrete-breaking, earthmoving, or other heavy equipment—keep at a safe distance.

• A spotter may be required to work with equipment operators and truck drivers during certain operations.

• If it becomes necessary to speak with an equipment operator, make eye contact with both the operator and the spotter then signal your intentions before approaching the equipment.

• Mechanical equipment must be inspected daily before operation to verify safe working order.

4.6 MEDICAL HAZARDS

Medical hazards may arise due to exposure to chemicals or due to ambient temperature conditions.

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4.6.1 Chemical Exposures

Chemical vapors may be irritating to the eyes, nose, and throat. If a person becomes dizzy, experiences eye irritation or nausea, the person must be removed from the area. To minimize the potential for chemical exposures, the following requirements shall apply:

• Review with all site personnel the information on the Safety Data Sheet (SDS) and/or the National Institute for Occupational Safety and Health (NIOSH) Guide to Chemical Hazards for the chemicals known or suspected to have been used onsite.

SDS information for compounds of potential concern is presented in Appendix B.

• All site workers will be advised of the symptoms of exposure to the chemicals at the site. Some of the most common symptoms to be aware of are:

• Dizziness • Eye irritation

• Nausea • Nose or throat irritation

• Headache • Chest pains and coughing

• Euphoria • Skin irritation, rashes, and burns

• Conduct direct-reading air monitoring to evaluate respiratory and explosion hazards and list instrument, action level, monitoring location, and action to be taken, in accordance with Section 1.4, if chemical exposure is possible.

• Consult the HSD for personal air monitoring requirements.

• Use appropriate PPE.

4.6.2 Temperature Hazards

The potential for heat- and cold-related temperature hazards is present at all sites.

4.6.2.1 Heat Stress

Heat stress is a significant potential hazard depending upon the work task performed and the type and degree of protective equipment used in hot weather. Local weather, strenuous work, and/or restrictive protective equipment may produce conditions which will require limited work schedules in order to protect employees. Monitoring for heat stress will follow one of two protocols depending on whether impermeable clothing (Tyvek®, Saranex™, rain gear, etc.) or permeable clothing (cotton overalls) is worn. This section will apply to both hazardous and non-hazardous waste workers at the site.

4.6.2.1.1 Workers Wearing Permeable Clothing

The American Conference of Governmental Industrial Hygienists (ACGIH) have set threshold limit value (TLVs) for workers exposed to heat stress in which it is presumed that nearly all workers may be repeatedly exposed without adverse health effects. The TLVs assume that workers are acclimatized, fully clothed in permeable clothing with adequate water and salt intake, and

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Bid Number C5613351-D capable of functioning effectively under the given working conditions without exceeding a deep body (core) temperature of 100.4 degrees Fahrenheit (ºF). The following table summarizes the work/rest regimen to be followed by all permeably clothed workers.

Permissible Heat Exposure TLVs Applicable to Workers Wearing Permeable Clothing

Work/Rest* Regimen Workload ºF

Light Moderate Heavy

Continuous work 86 (76) 80 (70) 77 (67)

75% work – 25% rest, each hour 87 (77) 82 (72) 78 (68)

50% work – 50% rest, each hour 89 (79) 85 (75) 82 (72)

25% work – 75% rest, each hour 90 (80) 88 (78) 86 (76)

* Rest means minimal physical activity. Rest should be accomplished in the shade. Any activity requiring only minimal activity can be performed during rest period.

( ) Parentheses indicate the 10-degree adjustment for working in impermeable protective clothing.

4.6.2.1.2 Workers Wearing Impermeable Clothing

Workers who must wear impermeable clothing are held at a higher risk of suffering heat stress.

Impermeable clothing impedes sweat evaporation, one of the body’s major cooling mechanisms.

Physiological and environmental monitoring of personnel wearing impermeable protective equipment will commence when the ambient temperature rises above 70ºF. Environmental monitoring will be conducted continuously for as long as the ambient temperature stays above 70ºF, and physiological monitoring will be conducted immediately before and after each work period. Frequency of physiological monitoring will increase as the ambient temperature increases or if slow recovery rates are indicated. The break time must be sufficient to allow workers to recover from the effects of heat stress. This will be accomplished by measuring the recovery heart rate and oral temperature. The break time duration will be determined using the following methodology and criteria:

• Seat person being monitored

• Take oral temperature

• Measure pulse in following sequence:

- Pulse #1: 30 seconds to 1 minute after sitting

- Pulse #2: 2 1/2 to 3 minutes after sitting

An excessive heat stress condition exists when any of the following conditions exist:

• Oral or ear temperature exceeds 99.5ºF

• If Pulse #2 is greater than 90 beats/minute, and

• Pulse #1 is greater than 110 beats/minute.

Worker cannot return to work until:

• Oral or ear temperature is below 99.5ºF

• Pulse rate is below 90 beats/minute

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• Recovery rate for workers with heart rates over 90 beats per minute is less than 10 beats per minute less than the original heart rate.

Adhering to the guidelines for heat stress prevention and monitoring will greatly minimize the possibility of the occurrence of heat stress. Site personnel must also be aware of the symptoms of heat-related disorders and be prepared to administer the appropriate treatments.

4.6.2.1.3 Prevention

• Provide plenty of cool, fresh fluids. A 50 percent solution of fruit juice or similar solution in water, or plain water will be available. Water shall be provided in sufficient quantity at the beginning of the work shift to provide one quart per employee per hour for drinking for the entire shift. For workers performing inside an exclusion zone, fluid intake may occur in the contamination reduction zone.

Workers must first perform a partial decontamination process, which will include removal of gloves and washing of hands and face prior to consumption of fluids.

The SSO will monitor the partial decontamination and fluid consumption process to ensure that ingestion of site contaminants does not occur. The frequent drinking of water, as described in Section 4.6.2.1.6 (Heat Illness Prevention Training), shall be encouraged.

• Work in pairs. No activity where personnel are in Level C/B or confined space entry will be conducted alone.

• Provide cooling devices. Monitor workers for heat stress levels. If a worker becomes overheated, immediately spray cold water over the head of the worker and place him/her in front of a fan. This will cool the overheated body down. Ice vests or onsite showers can be provided to reduce body temperature and/or cool protective clothing. The amount and type of undergarments worn will be left to the preference of each individual unless prone to heat stress, especially heat rash. In this case, the worker can wear “long john” cotton type underwear to keep the skin away from contact with the chemical resistant clothing.

• Adjustment of work schedule. When practicable, the most labor-intensive tasks should be carried out during the coolest part of the day.

• Shaded or cooled rest areas. Shaded or cooled rest areas will be provided when site environment and/or workers physiological responses warrant. Employees suffering from heat illness or believing a preventative recovery period is needed shall be provided access to an area with shade that is either open to the air or provided with ventilation or cooling for a period of no less than five minutes. Such access to shade shall be permitted at all times.

4.6.2.1.4 Heat Stress Monitoring

The necessity for personal heat stress monitoring will be evaluated by the SSO based on the activity to be performed and existing weather and site conditions. The SSO will utilize employee observations and professional judgment to determine the need for such monitoring. If deemed necessary, physiological monitoring of personnel will be conducted at regular intervals at the

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Bid Number C5613351-D beginning and conclusion of the work period. Initial physiological monitoring will consist of periodic heart rate measurements. Additional physiological monitoring such as body temperature and body water loss monitoring can be measured for extreme temperatures and when impermeable clothing is worn. The frequency of physiological monitoring is presented in the following table.

Suggested Frequency of Physiological Monitoring for Fit and Acclimated Workers(1)

Adjusted Temperature(2) Normal Work Ensemble(3) Impermeable Ensemble(4)

90ºF (32.2ºC) or above After each 45 minutes of work After each 15 minutes of work

87.5º -90ºF (30.8º -32.2ºC) After each 60 minutes of work After each 30 minutes of work

82.5º -87.5ºF (28.1º -30.8ºC) After each 90 minutes of work After each 60 minutes of work

77.5º -82.5ºF (25.3º -28.1ºC) After each 120 minutes of work After each 90 minutes of work

72.5º -77.5ºF (22.5º -25.3ºC) After each 150 minutes of work After each 120 minutes of work

(1) For work levels of 250 kilocalories per hour.

(2) Calculate the adjusted air temperature (T adj.) using the following equation:

T adj. (ºF) = T adj. (ºF) + (13 x percent sunshine) Measure the air temperature (T adj) using a standard mercury-in-glass thermometer with the bulb shielded from radiant heat.

(3) A normal work ensemble consists of cotton overalls with long sleeves and pants.

(4) An impermeable work ensemble consists of impermeable overalls with long sleeves and pants.

• Heart rate (HR) must be measured by the radial pulse for 30 seconds as early as possible in the resting period and repeated approximately 3 minutes into rest period.

The HR at the beginning of the rest period should not exceed 110 beats per minute.

The HR should not exceed 90 beats per minute after approximately 3 minutes of rest.