**Site:** Office of River Protection, Hanford

**Facility:** Tank Farms, 242-T Evaporator

**System:** Fire Protection System

**System Classification:** General Service System

**System Safety Function:** Provide Fire Detection Coverage for the
242-T Evaporator Facility

**[OBJECTIVE:]{.underline}**

**VSS-1** **This vital safety system is operational and personnel and
processes are in place that ensures its continued operational
readiness.**

**VSS-1.1** VSS safety functions are defined and understood by
responsible line managers, and supporting information/documentation is
available and adequate. System testing is adequate to ensure
operability. (Review Approach items 1, 2, 3 and 7)

> [Discussion of Results]{.underline} --
>
> The 242-T Evaporator Building has a fire detection system. The 242-T
> Evaporator Facility Shutdown/Standby to Condition V Safety Analysis
> Report (SD-HS-SAR-009, Rev. 0) identifies fire as a hazard (Table 9-1,
> 242-T Evaporator - Shutdown Condition Hazards). The postulated cause
> of the fire is from electrical problems, lightning or personnel
> actions. Mitigation of the fire hazard is identified as "low
> combustible loading" and "surveillance." In addition, the Tank Farm
> Final Safety Analysis Report (HNF-SD-WM-SAR-067, Rev. 2) does not
> identify any fire protection systems as Safety Class, Safety
> Significant, or Defense-in-Depth. Department of Energy (DOE) Order,
> DOE 5480.7A, \"Fire Protection\" establishes the requirements for
> contractor fire protection programs. Administrative procedure
> HNF-IP-0842, Volume IX, Section 5.1, "Fire Protection Program,"
> identifies the responsibilities for the fire protection program
> policy.
>
> As defined in Section 11.5.2 of the FSAR the fire protection program
> shall:

-   Minimize the potential for the occurrence of a fire or related
    perils by implementing industry standards and reduced-risk criteria
    on fire protection and prevention.

-   Ensure that fire does not cause an unacceptable onsite or offsite
    release of hazardous material that will threaten the public health
    and safety or the environment.

-   Ensure that process controls and safety systems are not damaged by
    fire or related perils.

-   Establish requirements consistent with NFPA 101-1994, *Life Safety
    Code*, to provide an acceptable degree of life safety to DOE and
    contractor personnel and to ensure that the public will not be
    exposed to undue hazards associated with fire and its effects in DOE
    facilities.

The current Fire Hazards Analysis (WHC-SD-WM-FHA-023, Rev. 0) identifies
that several potential fire scenarios were identified which could
potentially expose the evaporator equipment and/or site personnel to
flames, combustible products, toxic/corrosive materials, and a process
release (uncertainties due to hydrogen generation from the process
tanks).

Facilities with a fire loss replacement cost exceeding \$1M require
automatic fire suppression systems. The 242-T facility does not have a
fire suppression system installed in the building. When the facility was
constructed it was valued at less than \$1M and when shutdown in the
early 1980's the facility was planned to be decommissioned, hence no
fire suppression system has been installed in the structure. The
combustible loading within the facility has been minimized. A new Tank
Farm Contractor fire hazards analysis (FHA) has been initiated. The FHA
is scheduled for completion in FY 2001 and is funded. The process will
include a review of all facilities especially in regards to facilities
that are being decontaminated and decommissioned. The process includes
as a final step, issuing exemptions for those facilities that will not
meet code requirements as specified in the Standards/Requirements
Identification Document (HNF-SD-MP-SRID-001, Section 12.8).

All fire protection systems are inspected, tested, and maintained in
accordance with National Fire Protection Association (NFPA) Codes as
implemented through the Standards/Requirements Identification Document
(HNF-SD-MP-SRID-001, Section 12.8). The implementation of NFPA codes for
fire protection system testing, inspection and maintenance are detailed
in HNF-IP-0842, Volume IX, Section 5.6, "Fire Protection System Testing,
Inspection, and Maintenance." The Hanford Fire Department using their
procedures conducts testing on the fire protection system equipment;
however, HNF-IP-0842, Volume IX, Section 5.6 specifically states
"Although support in achieving the requirements of this section is
provided by the Hanford Fire Department, the final responsibility for
ensuring full compliance with this section shall belong to facility
management."

Configuration management of the system design media for fire protection
systems is maintained under the CH2M HILL Hanford Group, Inc. (CHG)
procedures. Drawings and other design media are available for the fire
detection and suppression systems installed in the 242-T facility.
Necessary and adequate procedures and policies are in place and have
been effectively implemented supporting the conclusion that management
understands their responsibilities.

**VSS-1.2** The backlog for surveillances, tests, inspections,
maintenance, repair, upgrades, or other work on the system is managed
and kept to an appropriate minimum. (Review Approach item 6)

> [Discussion of Results]{.underline} --
>
> Testing is accomplished at the frequencies established by the RPP fire
> protection maintenance program. The Hanford Fire Department conducts
> testing of the fire protection system components. Repairs are
> performed as components and/or systems fail. No backlog exists for
> this facility.
>
> No major upgrades are envisioned. However, a plan is being developed
> to replace the existing (obsolete) fire alarm panel in the future.
> Although the existing fire alarm panel is in good operational status,
> very few spare parts are available for maintaining the existing fire
> alarm panel. The fire alarm panel will be relocated into the 242-T
> structure or a better location. This shall be accomplished prior to
> transitioning the facility to the environmental restoration
> contractor.

**VSS-1.3** Configuration Management and Maintenance programs
effectively ensure operational availability of the system. (Review
Approach items 5, 8 and 9)

> [Discussion of Results]{.underline} --
>
> Procedure HNF-IP-0842, Volume IX, Section 5.4, \"Fire Hazards
> Analysis/Fire Protection Facility Assessment Requirements,\"
> establishes the criteria for conducting formal assessments of CHG
> facilities. All Tank Farm Fire Protection Facility Assessments are
> conducted at frequencies established in this procedure. The procedure
> is in accordance with DOE Order 5480.7A, "Fire Protection."
>
> A complete update/rewrite of the Tank Farm Fire Hazards Analysis has
> been funded and scheduled for completion during FY 2001.
>
> A fire protection assessment is performed every three years on the
> 242-T facility, under the direction of a qualified fire protection
> system expert (as specified in HNF-IP-0842, Volume IX, Section 5.4,
> \"Fire Hazards Analysis/Fire Protection Facility Assessment
> Requirements\"). A qualified fire protection engineer trends the fire
> protection systems availability. In addition, a qualified fire
> protection engineer performs trending of the equipment failures.
>
> Power operators perform scheduled tests on the emergency lights (for
> access and egress) in accordance with written procedures. The facility
> is an unmanned facility and operators visit the facility, daily.
>
> Procedure HNF-IP-0842, Volume IX, Section 5.1, "Fire Protection
> Program," assigns the overall lead for the River Protection Project
> (RPP) Fire Protection Program to the RPP Safety & Health organization.
>
> The RPP Safety and Health organization is responsible for ensuring
> "testing/inspection/preventive maintenance for fire protection systems
> are performed in accordance with HNF-IP-0842, Volume IX, Section 5.6,
> "Fire Protection System Testing, Inspection, and Maintenance".
>
> The Hanford Fire Department performs and documents the inspection,
> testing and maintenance of fire alarm and fire suppression systems,
> maintains all records of inspection/testing, and manages the fire
> system impairment tracking system (in accordance with HNF-PRO-372,
> "Hanford Fire Department"). RPP facility management is responsible for
> scheduling, authorizing and establishing appropriate facility
> conditions per HNF-PRO-372, Section 2.2, and HNF-IP-0842, Volume IX,
> Section 5.1, "Fire Protection Program."
>
> Drawings and other design media (e.g., supporting documents)
> supporting the 242-T fire protection system are maintained per the
> following list of established engineering procedures (not all
> inclusive).

-   HNF-IP-0842, Volume IV, Section 3.5 -- Engineering Documents

-   HNF-IP-0842, Volume IV, Section 4.25 -- Equipment Temporary
    Modifications and Bypasses

-   HNF-IP-0842, Volume IV, Section 4.29 -- Engineering Document Change
    Control Requirements

-   HNF-IP-0842, Volume IV, Section 5.4 -- Unreviewed Safety Question
    Requirements

-   RPP-PRO-1819 -- Engineering Requirements

-   HNF-PRO-224 -- Document Control Program Standards

> Documentation to allow field work/modifications to be performed on the
> 242-T fire detection system is produced in accordance with the RPP
> work control process (HNF-IP-0842, Volume V, Section 7.1 -- Tank Farm
> Contractor Work Control) and the Hanford Fire Departments procedures.
>
> Maintenance, test, and operating procedures/roundsheets are generated
> and modified in accordance with the RPP procedure (HNF-IP-0842, Volume
> I, Section 2.11- Technical Procedure Control and Use). In addition,
> test procedures meet the requirements referenced within the RPP
> testing procedure (HNF-IP-0842, Volume IV, Section 4.28 -- Testing
> Practices Requirements).

**VSS-1.4** The system is operable and available to fulfill its safety
function when required. (Review Approach items 4 and 10)

> [Discussion of Results]{.underline} --
>
> The Hanford Fire Department conducts testing. System restrictions and
> impairments are tracked and formally reported monthly. Discrepancies
> are responded to in a timely fashion.
>
> The RPP fire protection engineers track system availability for
> impairments and system restrictions separately. The following
> availability information is based upon all facilities under the
> control of the Tank Farm Contractor.
>
> Over the past three years system availability due to impairments has
> averaged 99.84% (0.16% system downtime). During the last twelve months
> failures have occurred and the system availability due to impairments
> averaged 99.97% (0.03% system downtime). The exact numbers of
> failures, for each individual facility under the cognizance of the
> TFC, that have occurred during the past three years is unavailable.
>
> During the past three years, the system availability due to system
> restrictions has averaged 99.70%. During the last twelve months
> failures have occurred and the system availability due to system
> restrictions averaged 99.92% (0.08% system restricted). The exact
> numbers of failures, for each individual facility under the cognizance
> of the TFC, that have occurred during the past three years is
> unavailable. The Hanford Fire Department performs fire protection
> system testing, inspection, and maintenance in accordance with
> National Fire Protection Association (NFPA) Codes. If a system
> restriction occurs, planned fire watches are instituted.

All facilities are analyzed for compliance with NFPA 80A, \"Recommended
Practice for Protection of Buildings from Exterior Fire Exposures.\"
This analysis helps assure that fire from the outside of the building
will not affect the facility.

The gravel, concrete pads and pavement ground cover around the 242-T
building provide good fire breaks from potential range fires. Operations
personnel routinely clean up transient combustibles that may accumulate
near the structure.

Electricity is the only utility system required by the 242-T building's
fire protection (detection) system. In addition, the radio frequency
alarm system ties the 242-T fire alarm panel to the Hanford Fire
Department 600 Area Fire Station. The Hanford Fire Department performs
constant monitoring of the facility's fire alarm panel status.

**[CONCLUSIONS:]{.underline}**

The 242-T fire protection system (fire alarm panel) is operating as
designed. The 242-T fire detection system is operating reliably as it
performs its general service safety function. Normal maintenance
activities and response to system problems are performed well, which is
evidenced by the high availability of the system. Procedures, design
media and policies are in place to maintain configuration control of the
system. No outside source of fire could potentially harm the structure
or it's contents.

The fire alarm system is located in a structure (242-T-601) that is no
longer maintained and will soon be decommissioned. Plans are being
developed to replace and relocate the fire alarm panel into the 242-T
structure or a better location (ref. VSS-1.2).

An update to the Fire Hazards Analysis has been initiated to re-evaluate
the fire hazards and determine adequate required protection.

DOE employee who reviewed this assessment \_\_\_[DOE Review
Team]{.underline}\_\_\_\_\_ Date \_\_[2/28/01]{.underline}\_

(\*See below)

Hours required for completing the assessment.

DOE: [40]{.underline} Hrs.

Contractor: [104]{.underline} Hrs.

\*Harkins, BA

Harp, BJ

Harwood, RG

Noorani, YG

Sullivan, RS

Trenchard, GD

Wade, KG

Williamson, BI

Wright, TC