[Code of Federal Regulations]
[Title 18, Volume 1]
[Revised as of April 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 18CFR157.214]

[Page 537-538]
 
           TITLE 18--CONSERVATION OF POWER AND WATER RESOURCES
 
  CHAPTER I--FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY
 
 PART 157_APPLICATIONS FOR CERTIFICATES OF PUBLIC CONVENIENCE AND NECESSITY 
 
  Subpart F_Interstate Pipeline Blanket Certificates and Authorization 
  Under Section 7 of the Natural Gas Act for Certain Transactions and 
                               Abandonment
 
Sec. 157.214  Increase in storage capacity.

    (a) Prior notice. Subject to the notice requirements of Sec. 
157.205, the certificate holder is authorized to increase the maximum 
volume of natural gas authorized to be stored in a storage field to the 
extent that geological data and operating experience have demonstrated 
that a volume of natural gas greater than that currently certificated 
may be safely stored without the construction of additional facilities.
    (b) Contents of request. In addition to the requirements of Sec. 
157.205(b), requests filed for activities described in paragraph (a) 
shall contain:
    (1) Current and requested maximum storage capacity;
    (2) Current and requested maximum storage pressure;
    (3) Average depth of the storage formation;
    (4) Copies of any geological or engineering studies that demonstrate 
the feasibility of the increase in storage volume; and
    (5) A statement setting forth the purpose of the proposed increased 
capacity.
    (c) Reporting requirements. For any storage facility whose capacity 
is increased pursuant to this section, the certificate holder shall 
submit, in the manner prescribed in Sec. 385.2011 of this chapter, 
semi-annual reports (to coincide with the termination of the injection 
and withdrawal cycles) containing the information listed in subdivisions 
(1) through (8) of this paragraph. The certificate holder shall continue 
to file semi-annual reports until the storage inventory volume has 
reached, or closely approximates, the maximum specified in the request. 
Thereafter, the reports shall continue on a semi-annual basis for a 
period of one year. The filing of reports shall be discontinued 
thereafter unless otherwise ordered by the Commission. (Volumes shall be 
stated at 14.73 psia and 60[deg] F, and pressures shall be stated in 
psia.)
    (1) The daily volume of natural gas injected into and withdrawn from 
the storage reservoir.
    (2) The volume of natural gas in the reservoir at the end of the 
reporting period.

[[Page 538]]

    (3) The maximum daily injection or withdrawal rate experienced 
during the reporting period and the average working pressure on such 
maximum days taken at a central measuring point where the total volume 
injected or withdrawn is measured.
    (4) Results of any tracer program by which the leakage of injected 
gas may be determined. If the leakage of gas exists, the report should 
show the estimated total volume of gas leakage, the volume of recycled 
gas and the remaining inventory of gas in the reservoir at the end of 
the reporting period.
    (5) Any surveys of pressures in gas wells, water levels in 
observation wells, pump test results for the aquifer-type reservoirs, 
and the results of back-pressure tests conducted during the reporting 
period.
    (6) The latest revised structure and isopachous contour maps showing 
the location of the wells, the location and extent of the gas bubble in 
the storage reservoir for aquifer-type reservoirs and in any other 
reservoirs of the project in which gas bubbles are known to exist. This 
map need not be filed if there is no material change from the map 
previously filed.
    (7) Discussion of current operating problems and conclusions.
    (8) Such other data or reports which may aid the Commission in the 
evaluation of the storage project.

[Order 234, 47 FR 24266, June 4, 1982, as amended by Order 493, 53 FR 
15030, Apr. 27, 1988]