1 

### Kelly, Shaheerah

From: Dwight Mallory <Dmallory@resoluteenergy.com>

Sent: Tuesday, October 20, 2015 10:36 AM

To: Kelly, Shaheerah

Subject: RE: Question re MCU Li fecycle Maintenance Plan



### This information is descriptive only and is not necessary for operational purposes.

Sent via the Samsung GALAXY S®4, an AT&T 4G LTE smartphone



### -------- Original message -------- From: "Kelly, Shaheerah" <Kelly.Shaheerah@epa.gov>

Date: 10/20/2015 10:26 AM (GMT-07:00)

To: Dwight Mallory <Dmallory@resoluteenergy.com>

Subject: Question re MCU Lifecycle Maintenance Plan

Dwight,

The following information was contained in the Lifecycle Maintenance Plan (attachment #1 of Appendix A) for

compressors HOS

‐ 6, HOS

‐ 4, and Aerial C

‐ 5. However, it was removed from the most recent revised version you sent me.

Is this information needed from the proper operation of the compressors? Please verify whether or not it is still

applicable and needs to be in the Lifecycle Maintenance Plan. Thanks.



### LIFE CYCLE MAINTENANCE PLAN

The following pages describe the Level 1 tasks perf ormed by the plant oper ators during each shift.

Critical monitoring devices for pressure, temperature, level, and vibration are equipped with High and HighHigh alarms.

High alarms warn operators of a process malfunction allowing operators to tr oubleshoot the process for

operational or mechanical malfunctions. Operational pr oblems are corrected by an operator allowing equipment

to continue operating. Mechani cal problems that can be easily repaired by the operator are

repaired. Mechanical problems that cannot be repaired by the operator are communicated to the supervisor on

duty and a decision is made to either shut down that piece of equipment or to continue running, depending on

the criticality of the equi pment and/or the severity of the malfunc tion, until repairs can be made. Monitoring

frequency of the equipment will be increased, again depend ing on the criticality of the equipment or the severity

of the malfunction until repairs can be made.

High-High alarms will automatically shut down equipment ensuring the safety of personnel, preventing damage

to equipment, and minimizing impact on the environment. The supervisor on duty is notified of a shutdown and

a decision is made whether to repa ir immediately, depending on day (weeke nd, weekday), time of day (night

tour or day tour) availability of parts and personnel nece ssary to perform repairs, in order to minimize impact on

the environment.2 ************************************

Shaheerah Kelly

Permits Office, Air Division (AIR-3)

U.S. Environmental Protec tion Agency, Region 9

San Francisco, CA 94105

Phone: 415-947-4156

Fax: 415-947-3579

Email: kelly.shaheerah@epa.gov

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