Petitions for Modification of Application of Existing Mandatory Safety Standard, 23941-23943 [2018-11037]

Download as PDF Federal Register / Vol. 83, No. 100 / Wednesday, May 23, 2018 / Notices DEPARTMENT OF LABOR Mine Safety and Health Administration [OMB Control No. 1219–0004] Proposed Extension of Information Collection; Roof Control Plan for Underground Coal Mines Mine Safety and Health Administration, Labor. ACTION: Request for public comments. AGENCY: The Department of Labor, as part of its continuing effort to reduce paperwork and respondent burden, conducts a pre-clearance consultation program to provide the general public and Federal agencies with an opportunity to comment on proposed collections of information in accordance with the Paperwork Reduction Act of 1995. This program helps to ensure that requested data can be provided in the desired format, reporting burden (time and financial resources) is minimized, collection instruments are clearly understood, and the impact of collection requirements on respondents can be properly assessed. Currently, the Mine Safety and Health Administration (MSHA) is soliciting comments on the information collection for Roof Control Plan for Underground Coal Mines. DATES: All comments must be received on or before July 23, 2018. ADDRESSES: Comments concerning the information collection requirements of this notice may be sent by any of the methods listed below. • Federal E-Rulemaking Portal: http://www.regulations.gov. Follow the on-line instructions for submitting comments for docket number MSHA– 2018–0002. • Regular Mail: Send comments to USDOL–MSHA, Office of Standards, Regulations, and Variances, 201 12th Street South, Suite 4E401, Arlington, VA 22202–5452. • Hand Delivery: USDOL—Mine Safety and Health Administration, 201 12th Street South, Suite 4E401, Arlington, VA 22202–5452. Sign in at the receptionist’s desk on the 4th floor via the East elevator. FOR FURTHER INFORMATION CONTACT: Sheila McConnell, Director, Office of Standards, Regulations, and Variances, MSHA, at MSHA.information.collections@dol.gov (email); (202) 693–9440 (voice); or (202) 693–9441 (facsimile). SUPPLEMENTARY INFORMATION: daltland on DSKBBV9HB2PROD with NOTICES SUMMARY: I. Background Section 103(h) of the Federal Mine Safety and Health Act of 1977 (Mine VerDate Sep<11>2014 17:33 May 22, 2018 Jkt 244001 Act), 30 U.S.C. 813(h), authorizes MSHA to collect information necessary to carry out its duty in protecting the safety and health of miners. Further, section 101(a) of the Mine Act, 30 U.S.C. 811, authorizes the Secretary of Labor (Secretary) to develop, promulgate, and revise as may be appropriate, improved mandatory health or safety standards for the protection of life and prevention of injuries in coal or other mines. Section 302(a) of the Mine Act, requires that a roof control plan and revisions thereof suitable to the roof conditions and mining system of each coal mine be first approved by the Secretary before implementation by the operator. The plan must show the type of support and spacing approved by the Secretary, and the plan must be reviewed at least every six months by the Secretary. This information collection addresses the recordkeeping associated with: 75.220(a)(1)—Roof control plan 75.221(1)(2)—Roof control plan information 75.222(a)—Roof control plan-approval 75.223(a), (b), & (d)—Evaluation and revision of roof control plan. II. Desired Focus of Comments MSHA is soliciting comments concerning the proposed information collection related to Roof Control Plan for Underground Coal Mines. MSHA is particularly interested in comments that: • Evaluate whether the collection of information is necessary for the proper performance of the functions of the agency, including whether the information has practical utility; • Evaluate the accuracy of MSHA’s estimate of the burden of the collection of information, including the validity of the methodology and assumptions used; • Suggest methods to enhance the quality, utility, and clarity of the information to be collected; and • Minimize the burden of the collection of information on those who are to respond, including through the use of appropriate automated, electronic, mechanical, or other technological collection techniques or other forms of information technology, e.g., permitting electronic submission of responses. The information collection request will be available on http:// www.regulations.gov. MSHA cautions the commenter against providing any information in the submission that should not be publicly disclosed. Full comments, including personal information provided, will be made available on www.regulations.gov and www.reginfo.gov. PO 00000 Frm 00058 Fmt 4703 Sfmt 4703 23941 The public may also examine publicly available documents at USDOL—Mine Safety and Health Administration, 201 12th South, Suite 4E401, Arlington, VA 22202–5452. Sign in at the receptionist’s desk on the 4th floor via the East elevator. Questions about the information collection requirements may be directed to the person listed in the FOR FURTHER INFORMATION section of this notice. III. Current Actions This request for collection of information contains provisions for Roof Control Plan for Underground Coal Mines. MSHA has updated the data with respect to the number of respondents, responses, burden hours, and burden costs supporting this information collection request. Type of Review: Extension, without change, of a currently approved collection. Agency: Mine Safety and Health Administration. OMB Number: 1219–0004. Affected Public: Business or other forprofit. Number of Respondents: 211. Frequency: On occasion. Number of Responses: 1,450. Annual Burden Hours: 4,513 hours. Annual Respondent or Recordkeeper Cost: $5,025. Comments submitted in response to this notice will be summarized and included in the request for Office of Management and Budget approval of the information collection request; they will also become a matter of public record. Sheila McConnell, Certifying Officer. [FR Doc. 2018–11040 Filed 5–22–18; 8:45 am] BILLING CODE 4510–43–P DEPARTMENT OF LABOR Mine Safety and Health Administration Petitions for Modification of Application of Existing Mandatory Safety Standard Mine Safety and Health Administration, Labor. ACTION: Notice. AGENCY: This notice is a summary of petitions for modification submitted to the Mine Safety and Health Administration (MSHA) by the parties listed below. DATES: All comments on the petitions must be received by MSHA’s Office of Standards, Regulations, and Variances on or before June 22, 2018. ADDRESSES: You may submit your comments, identified by ‘‘docket SUMMARY: E:\FR\FM\23MYN1.SGM 23MYN1 23942 Federal Register / Vol. 83, No. 100 / Wednesday, May 23, 2018 / Notices number’’ on the subject line, by any of the following methods: 1. Email: zzMSHA-comments@ dol.gov. Include the docket number of the petition in the subject line of the message. 2. Facsimile: 202–693–9441. 3. Regular Mail or Hand Delivery: MSHA, Office of Standards, Regulations, and Variances, 201 12th Street South, Suite 4E401, Arlington, Virginia 22202–5452, Attention: Sheila McConnell, Director, Office of Standards, Regulations, and Variances. Persons delivering documents are required to check in at the receptionist’s desk in Suite 4E401. Individuals may inspect copies of the petitions and comments during normal business hours at the address listed above. MSHA will consider only comments postmarked by the U.S. Postal Service or proof of delivery from another delivery service such as UPS or Federal Express on or before the deadline for comments. FOR FURTHER INFORMATION CONTACT: Barbara Barron, Office of Standards, Regulations, and Variances at 202–693– 9447 (Voice), barron.barbara@dol.gov (email), or 202–693–9441 (Facsimile). [These are not toll-free numbers.] SUPPLEMENTARY INFORMATION: Section 101(c) of the Federal Mine Safety and Health Act of 1977 and Title 30 of the Code of Federal Regulations Part 44 govern the application, processing, and disposition of petitions for modification. daltland on DSKBBV9HB2PROD with NOTICES I. Background Section 101(c) of the Federal Mine Safety and Health Act of 1977 (Mine Act) allows the mine operator or representative of miners to file a petition to modify the application of any mandatory safety standard to a coal or other mine if the Secretary of Labor (Secretary) determines that: 1. An alternative method of achieving the result of such standard exists which will at all times guarantee no less than the same measure of protection afforded the miners of such mine by such standard; or 2. That the application of such standard to such mine will result in a diminution of safety to the miners in such mine. In addition, the regulations at 30 CFR 44.10 and 44.11 establish the requirements and procedures for filing petitions for modification. II. Petitions for Modification Docket Number: M–2018–014–C. Petitioner: Greenbrier Minerals, LLC, P.O. Box 446, Man, West Virginia 25635. VerDate Sep<11>2014 17:33 May 22, 2018 Jkt 244001 Mine: Powellton No. 1 Mine, MSHA I.D. No. 46–09217, located in Logan County, West Virginia. Regulation Affected: 30 CFR 75.310(b)(1) (Installation of main mine fans). Modification Request: The petitioner requests a modification of the existing standard to allow the Powellton No. 1 Mine to feed power from a new, isolated surface substation via borehole feed to replenish power for future mine advancement and to provide power for the No. 3 Coal Branch fan installation. The petitioner states that: (1) Feeding of power will be from an isolated surface substation dedicated only to the borehole feed. This feed circuit will be a three-phase, 12.47 KV High-Voltage Circuit that is run on open wire and poles with neutral and pilot, with the pilot wire mounted on separate insulators the entire length. The system circuit breaker will be controlled by an SEL–501–2 Digital Fault Relay, and wire and cable grounds will be monitored by an MCI 22701 impedance monitor. (2) A surface Gang Operated Air Break (GOAB) switch is located at the top of the borehole with Lightning Arrestors on each phase. The Lightning Arrestors will be grounded by attaching a 15 KV rated cable that will be placed at a minimum of 25 feet away from the borehole structure or station ground field. (3) The borehole cable will be a Mine Power Feeder (MPF) constructed cable, 15 KV, 4/0–3 Conductor SHD (Shield) GGC. The cable will be hung by wire messenger and supported at the top rim and every subsequent 100 feet span. All messenger and apparatus at the borehole location will be grounded to the station ground field in accordance with current MSHA, West Virginia Office of Miners HS&T, and applicable NEC Code regulations. (4) At the exit of the bottom of the borehole, the cable will enter a Mining Controls, Dual Vacuum Breaker Switch House (A). The switch house features AEEI A8200, diode terminated, ground monitors and SEL–751A Digital Fault Relays. It will also feature three phase Tavrida Electric Vacuum Breakers rated 800A, 15KV, 20kAIC. (5) One circuit from the Dual Vacuum Switch House (A) will be dedicated to feed into a second Dual Vacuum Switch House (B) which will send refreshed power to petitioner’s Section 2 and Section 3 Continuous Miner Sections. This switch house features AEEI A8200, diode terminated, ground monitors and SEL–501–2 Digital Fault Relays. It will also feature three phase MCI Electric Vacuum Breakers rated 600A, 15KV, 20kAIC. PO 00000 Frm 00059 Fmt 4703 Sfmt 4703 (6) The other circuit from the Dual Vacuum Switch House (A) will be dedicated to feed only the fan circuit which is approximately 12,000 feet to the portal. The supplying cable will be a Mine Power Feeder (MPF) constructed cable, 15 KV, 4/0–3 Conductor SHD (Shield) GGC. The cable will be terminated at a Pole Mounted, GOAB Switch with Lightning Arrestors. The lightning arrestors will be grounded by attaching a 15 KV rated cable that will be placed at a minimum of 25 feet away from all station grounds. The pilot and ground will be terminated in an enclosure with an ‘‘Emergency Stop’’ switch located near the fan controls. (7) Power will enter on the primary side of a set of three 167KVA (12.4KV– Delta X 480V–WYE) pole mounted transformer cans. These cans are fuse protected and have lightning arrestors for each phase. These lightning arrestors will be grounded by attaching a 15 KV rated cable that will be placed at a minimum of 25 feet away from station grounds. The secondary side of the transformers (480V AC) will feed into a (Fully Automated Transfer Switch) and then to the Fan VFD Motor Starter, that will power the 250 horsepower fan motor. (8) The alternate power source is a Caterpillar Generator XQ300–C9 (300 KW) feeding the fully automatic transfer switch 480V AC power anytime there is a power interruption. The generator will start, the transfer switch will switch to generator supplied power, and the whole process takes approximately 39 seconds for the fan to be running at the set capacity. The generator has a fuel tank capacity of 430 gallons and the fan has a fuel consumption rate of 18.6 gallons per hour. Therefore, the fan can run from the generator for approximately 23 hours from the onboard tank. There is also an additional supply tank to fill the generator tank that holds 1,000 gallons of fuel, providing an additional run time of 53 hours plus. This will allow time to troubleshoot, repair, test, and reenergize the High-Voltage Feeder Circuit or have additional fuel delivered to the site. (9) All normal backup notification systems will be installed including radio remote warning signals that the fan is not running, fiber-optic communication, and security cameras monitoring the site. (10) The petitioner operates the affected underground coal mine which additional power feeds are required to replenish power to two working sections and supply power to the #3 Coal Branch Fan Installation. E:\FR\FM\23MYN1.SGM 23MYN1 daltland on DSKBBV9HB2PROD with NOTICES Federal Register / Vol. 83, No. 100 / Wednesday, May 23, 2018 / Notices (11) The #3 Coal Branch Fan will be installed to meet Ventilation Plan requirements as set forth in petitioner’s Ventilation Plan. (12) There is no Three-Phase Utility Power of any voltage available within 9.5 miles. (13) The borehole location is very remote, approximately 2.2 miles from the substation location, thus would be considered a security risk for damage should the substation be placed there. Mine personnel can be at the borehole location in approximately 45 minutes vs. 5 minutes travel to the current location that is located behind the Preparation Plant of the Main Substation. (14) Mining is being conducted by another mining company which intersects with Greenbrier Minerals property line. Petitioner states that it could get right of way to build across the other company property line but in subsequent years would have to move two sections of power line, and our substation would be in a blasting area that could lead to damage from flying debris, air-shock, and ground vibrations. (15) The petitioner requests that the Powellton #1 Mine be allowed to feed both mine power systems and petitioner’s #3 Coal Branch Fan Installation on one system where such occurrences of a fault trip on the main feed would be kept to a minimum by utilizing the dual series vacuum breaker configuration. In those rare instances where the dual vacuum breaker configuration should fail, petitioner has included a fully automatic system with a transfer switch and generator that will restore power to the #3 Coal Branch Fan in less than one minute. (16) The proposed modification would not only ensure operable ventilation, it would also ensure through weekly functional testing that the alternate power supply would function as intended and adequately maintain mine ventilation. The petitioner asserts that the proposed alternative method will achieve the purpose of the existing standard and will always guarantee no less than the same measure of protection afforded by the standard. Docket Number: M–2018–005–M. Petitioner: Solvay Chemicals, Inc., P.O. Box 1167, 400 County Road 85, Green River, Wyoming 82935. Mine: Solvay Chemicals, Inc. Mine, MSHA I.D. No. 48–01295, located in Sweetwater County, Wyoming. Regulation Affected: 30 CFR 57.4760(a) (Shaft mines). Modification Request: The petitioner states that the fire control doors located near the #3 shaft in this Class III Gassy VerDate Sep<11>2014 17:33 May 22, 2018 Jkt 244001 Mine presents a diminution of safety to the miners because the installation of control doors or the reversal of mechanical ventilation would affect the main air currents and splits, thus adversely impacting the ventilation system’s ability to render and dilute concentrations of toxic gases or methane gas. Additionally, the installation of control doors or the reversal of mechanical ventilation can only be achieved by shutting down the mine’s main exhaust fans. Due to the expanse of the mine, evacuation of all personnel underground to the surface in ten minutes or less is not an alternative means of compliance with the standard. The petitioner seeks to remove the fire control doors and requests a modification of the existing standard to permit the use of alternative controls in lieu of the installation of control doors. The petitioner states that: (1) It requests a modification of 30 CFR 57.4760(a), that authorizes the petitioner to establish an alternative method in lieu of the mandatory safety standard. The petitioner considers the following alternatives to the installation of control doors as acceptable means to control the spread of fire, smoke, and toxic gases underground in the event of a fire specific to the petitioner’s mine: (a) The petitioner currently has four shafts constructed of non-combustible materials. All four existing shafts will be provided with a means of hoisting mine personnel. At all times, two properly maintained escapeways to the surface from the lowest levels will be maintained. (b) Conveyor belting used underground will be 2G compliant or meet the equivalent flame spread rating. The petitioner asserts that application of the existing standard will result in a diminution of safety to the miners and that the proposed alternative method will provide the same measure of protection afforded by the standard. Sheila McConnell, Director, Office of Standards, Regulations, and Variances. [FR Doc. 2018–11037 Filed 5–22–18; 8:45 am] BILLING CODE 4520–43–P ACTION: 23943 Request for public comments. The Department of Labor, as part of its continuing effort to reduce paperwork and respondent burden, conducts a pre-clearance consultation program to provide the general public and Federal agencies with an opportunity to comment on proposed collections of information in accordance with the Paperwork Reduction Act of 1995. This program helps to ensure that requested data can be provided in the desired format, reporting burden (time and financial resources) is minimized, collection instruments are clearly understood, and the impact of collection requirements on respondents can be properly assessed. Currently, the Mine Safety and Health Administration (MSHA) is soliciting comments on the information collection for Notification of Methane Detected in Underground Metal and Nonmetal Mine Atmospheres. DATES: All comments must be received on or before July 23, 2018. ADDRESSES: Comments concerning the information collection requirements of this notice may be sent by any of the methods listed below. • Federal E-Rulemaking Portal: http://www.regulations.gov. Follow the on-line instructions for submitting comments for docket number MSHA– 2018–0005. • Regular Mail: Send comments to USDOL–MSHA, Office of Standards, Regulations, and Variances, 201 12th Street South, Suite 4E401, Arlington, VA 22202–5452. • Hand Delivery: USDOL-Mine Safety and Health Administration, 201 12th Street South, Suite 4E401, Arlington, VA 22202–5452. Sign in at the receptionist’s desk on the 4th floor via the East elevator. FOR FURTHER INFORMATION CONTACT: Sheila McConnell, Director, Office of Standards, Regulations, and Variances, MSHA, at MSHA.information. collections@dol.gov (email); (202) 693– 9440 (voice); or (202) 693–9441 (facsimile). SUMMARY: SUPPLEMENTARY INFORMATION: I. Background DEPARTMENT OF LABOR Mine Safety and Health Administration [OMB Control No. 1219–0103] Proposed Extension of Information Collection; Notification of Methane Detected in Underground Metal and Nonmetal Mine Atmospheres Mine Safety and Health Administration, Labor. AGENCY: PO 00000 Frm 00060 Fmt 4703 Sfmt 4703 Section 103(h) of the Federal Mine Safety and Health Act of 1977 (Mine Act), 30 U.S.C. 813(h), authorizes MSHA to collect information necessary to carry out its duty in protecting the safety and health of miners. Further, section 101(a) of the Mine Act, 30 U.S.C. 811, authorizes the Secretary of Labor (Secretary) to develop, promulgate, and revise as may be appropriate, improved mandatory health or safety standards for E:\FR\FM\23MYN1.SGM 23MYN1

Agencies

[Federal Register Volume 83, Number 100 (Wednesday, May 23, 2018)]
[Notices]
[Pages 23941-23943]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2018-11037]


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

DEPARTMENT OF LABOR

Mine Safety and Health Administration


Petitions for Modification of Application of Existing Mandatory 
Safety Standard

AGENCY: Mine Safety and Health Administration, Labor.

ACTION: Notice.

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

SUMMARY: This notice is a summary of petitions for modification 
submitted to the Mine Safety and Health Administration (MSHA) by the 
parties listed below.

DATES: All comments on the petitions must be received by MSHA's Office 
of Standards, Regulations, and Variances on or before June 22, 2018.

ADDRESSES: You may submit your comments, identified by ``docket

[[Page 23942]]

number'' on the subject line, by any of the following methods:
    1. Email: [email protected]. Include the docket number of the 
petition in the subject line of the message.
    2. Facsimile: 202-693-9441.
    3. Regular Mail or Hand Delivery: MSHA, Office of Standards, 
Regulations, and Variances, 201 12th Street South, Suite 4E401, 
Arlington, Virginia 22202-5452, Attention: Sheila McConnell, Director, 
Office of Standards, Regulations, and Variances. Persons delivering 
documents are required to check in at the receptionist's desk in Suite 
4E401. Individuals may inspect copies of the petitions and comments 
during normal business hours at the address listed above.
    MSHA will consider only comments postmarked by the U.S. Postal 
Service or proof of delivery from another delivery service such as UPS 
or Federal Express on or before the deadline for comments.

FOR FURTHER INFORMATION CONTACT: Barbara Barron, Office of Standards, 
Regulations, and Variances at 202-693-9447 (Voice), 
[email protected] (email), or 202-693-9441 (Facsimile). [These are 
not toll-free numbers.]

SUPPLEMENTARY INFORMATION: Section 101(c) of the Federal Mine Safety 
and Health Act of 1977 and Title 30 of the Code of Federal Regulations 
Part 44 govern the application, processing, and disposition of 
petitions for modification.

I. Background

    Section 101(c) of the Federal Mine Safety and Health Act of 1977 
(Mine Act) allows the mine operator or representative of miners to file 
a petition to modify the application of any mandatory safety standard 
to a coal or other mine if the Secretary of Labor (Secretary) 
determines that:
    1. An alternative method of achieving the result of such standard 
exists which will at all times guarantee no less than the same measure 
of protection afforded the miners of such mine by such standard; or
    2. That the application of such standard to such mine will result 
in a diminution of safety to the miners in such mine.
    In addition, the regulations at 30 CFR 44.10 and 44.11 establish 
the requirements and procedures for filing petitions for modification.

II. Petitions for Modification

    Docket Number: M-2018-014-C.
    Petitioner: Greenbrier Minerals, LLC, P.O. Box 446, Man, West 
Virginia 25635.
    Mine: Powellton No. 1 Mine, MSHA I.D. No. 46-09217, located in 
Logan County, West Virginia.
    Regulation Affected: 30 CFR 75.310(b)(1) (Installation of main mine 
fans).
    Modification Request: The petitioner requests a modification of the 
existing standard to allow the Powellton No. 1 Mine to feed power from 
a new, isolated surface substation via borehole feed to replenish power 
for future mine advancement and to provide power for the No. 3 Coal 
Branch fan installation.
    The petitioner states that:
    (1) Feeding of power will be from an isolated surface substation 
dedicated only to the borehole feed. This feed circuit will be a three-
phase, 12.47 KV High-Voltage Circuit that is run on open wire and poles 
with neutral and pilot, with the pilot wire mounted on separate 
insulators the entire length. The system circuit breaker will be 
controlled by an SEL-501-2 Digital Fault Relay, and wire and cable 
grounds will be monitored by an MCI 22701 impedance monitor.
    (2) A surface Gang Operated Air Break (GOAB) switch is located at 
the top of the borehole with Lightning Arrestors on each phase. The 
Lightning Arrestors will be grounded by attaching a 15 KV rated cable 
that will be placed at a minimum of 25 feet away from the borehole 
structure or station ground field.
    (3) The borehole cable will be a Mine Power Feeder (MPF) 
constructed cable, 15 KV, 4/0-3 Conductor SHD (Shield) GGC. The cable 
will be hung by wire messenger and supported at the top rim and every 
subsequent 100 feet span. All messenger and apparatus at the borehole 
location will be grounded to the station ground field in accordance 
with current MSHA, West Virginia Office of Miners HS&T, and applicable 
NEC Code regulations.
    (4) At the exit of the bottom of the borehole, the cable will enter 
a Mining Controls, Dual Vacuum Breaker Switch House (A). The switch 
house features AEEI A8200, diode terminated, ground monitors and SEL-
751A Digital Fault Relays. It will also feature three phase Tavrida 
Electric Vacuum Breakers rated 800A, 15KV, 20kAIC.
    (5) One circuit from the Dual Vacuum Switch House (A) will be 
dedicated to feed into a second Dual Vacuum Switch House (B) which will 
send refreshed power to petitioner's Section 2 and Section 3 Continuous 
Miner Sections. This switch house features AEEI A8200, diode 
terminated, ground monitors and SEL-501-2 Digital Fault Relays. It will 
also feature three phase MCI Electric Vacuum Breakers rated 600A, 15KV, 
20kAIC.
    (6) The other circuit from the Dual Vacuum Switch House (A) will be 
dedicated to feed only the fan circuit which is approximately 12,000 
feet to the portal. The supplying cable will be a Mine Power Feeder 
(MPF) constructed cable, 15 KV, 4/0-3 Conductor SHD (Shield) GGC. The 
cable will be terminated at a Pole Mounted, GOAB Switch with Lightning 
Arrestors. The lightning arrestors will be grounded by attaching a 15 
KV rated cable that will be placed at a minimum of 25 feet away from 
all station grounds. The pilot and ground will be terminated in an 
enclosure with an ``Emergency Stop'' switch located near the fan 
controls.
    (7) Power will enter on the primary side of a set of three 167KVA 
(12.4KV-Delta X 480V-WYE) pole mounted transformer cans. These cans are 
fuse protected and have lightning arrestors for each phase. These 
lightning arrestors will be grounded by attaching a 15 KV rated cable 
that will be placed at a minimum of 25 feet away from station grounds. 
The secondary side of the transformers (480V AC) will feed into a 
(Fully Automated Transfer Switch) and then to the Fan VFD Motor 
Starter, that will power the 250 horsepower fan motor.
    (8) The alternate power source is a Caterpillar Generator XQ300-C9 
(300 KW) feeding the fully automatic transfer switch 480V AC power 
anytime there is a power interruption. The generator will start, the 
transfer switch will switch to generator supplied power, and the whole 
process takes approximately 39 seconds for the fan to be running at the 
set capacity. The generator has a fuel tank capacity of 430 gallons and 
the fan has a fuel consumption rate of 18.6 gallons per hour. 
Therefore, the fan can run from the generator for approximately 23 
hours from the onboard tank. There is also an additional supply tank to 
fill the generator tank that holds 1,000 gallons of fuel, providing an 
additional run time of 53 hours plus. This will allow time to 
troubleshoot, repair, test, and reenergize the High-Voltage Feeder 
Circuit or have additional fuel delivered to the site.
    (9) All normal backup notification systems will be installed 
including radio remote warning signals that the fan is not running, 
fiber-optic communication, and security cameras monitoring the site.
    (10) The petitioner operates the affected underground coal mine 
which additional power feeds are required to replenish power to two 
working sections and supply power to the #3 Coal Branch Fan 
Installation.

[[Page 23943]]

    (11) The #3 Coal Branch Fan will be installed to meet Ventilation 
Plan requirements as set forth in petitioner's Ventilation Plan.
    (12) There is no Three-Phase Utility Power of any voltage available 
within 9.5 miles.
    (13) The borehole location is very remote, approximately 2.2 miles 
from the substation location, thus would be considered a security risk 
for damage should the substation be placed there. Mine personnel can be 
at the borehole location in approximately 45 minutes vs. 5 minutes 
travel to the current location that is located behind the Preparation 
Plant of the Main Substation.
    (14) Mining is being conducted by another mining company which 
intersects with Greenbrier Minerals property line. Petitioner states 
that it could get right of way to build across the other company 
property line but in subsequent years would have to move two sections 
of power line, and our substation would be in a blasting area that 
could lead to damage from flying debris, air-shock, and ground 
vibrations.
    (15) The petitioner requests that the Powellton #1 Mine be allowed 
to feed both mine power systems and petitioner's #3 Coal Branch Fan 
Installation on one system where such occurrences of a fault trip on 
the main feed would be kept to a minimum by utilizing the dual series 
vacuum breaker configuration. In those rare instances where the dual 
vacuum breaker configuration should fail, petitioner has included a 
fully automatic system with a transfer switch and generator that will 
restore power to the #3 Coal Branch Fan in less than one minute.
    (16) The proposed modification would not only ensure operable 
ventilation, it would also ensure through weekly functional testing 
that the alternate power supply would function as intended and 
adequately maintain mine ventilation.
    The petitioner asserts that the proposed alternative method will 
achieve the purpose of the existing standard and will always guarantee 
no less than the same measure of protection afforded by the standard.
    Docket Number: M-2018-005-M.
    Petitioner: Solvay Chemicals, Inc., P.O. Box 1167, 400 County Road 
85, Green River, Wyoming 82935.
    Mine: Solvay Chemicals, Inc. Mine, MSHA I.D. No. 48-01295, located 
in Sweetwater County, Wyoming.
    Regulation Affected: 30 CFR 57.4760(a) (Shaft mines).
    Modification Request: The petitioner states that the fire control 
doors located near the #3 shaft in this Class III Gassy Mine presents a 
diminution of safety to the miners because the installation of control 
doors or the reversal of mechanical ventilation would affect the main 
air currents and splits, thus adversely impacting the ventilation 
system's ability to render and dilute concentrations of toxic gases or 
methane gas. Additionally, the installation of control doors or the 
reversal of mechanical ventilation can only be achieved by shutting 
down the mine's main exhaust fans. Due to the expanse of the mine, 
evacuation of all personnel underground to the surface in ten minutes 
or less is not an alternative means of compliance with the standard.
    The petitioner seeks to remove the fire control doors and requests 
a modification of the existing standard to permit the use of 
alternative controls in lieu of the installation of control doors.
    The petitioner states that:
    (1) It requests a modification of 30 CFR 57.4760(a), that 
authorizes the petitioner to establish an alternative method in lieu of 
the mandatory safety standard. The petitioner considers the following 
alternatives to the installation of control doors as acceptable means 
to control the spread of fire, smoke, and toxic gases underground in 
the event of a fire specific to the petitioner's mine:
    (a) The petitioner currently has four shafts constructed of non-
combustible materials. All four existing shafts will be provided with a 
means of hoisting mine personnel. At all times, two properly maintained 
escapeways to the surface from the lowest levels will be maintained.
    (b) Conveyor belting used underground will be 2G compliant or meet 
the equivalent flame spread rating.
    The petitioner asserts that application of the existing standard 
will result in a diminution of safety to the miners and that the 
proposed alternative method will provide the same measure of protection 
afforded by the standard.

Sheila McConnell,
Director, Office of Standards, Regulations, and Variances.
[FR Doc. 2018-11037 Filed 5-22-18; 8:45 am]
 BILLING CODE 4520-43-P