Current through Register Vol. 48, No. 39, March 25, 2024
If a substance storage facility is required to obtain a
major facility permit under this chapter, the permittee shall retain the
following data on file at the facility for the retention times specified for
each of the following safeguards that are explicitly required by the terms and
conditions of the permit:
A. for each
field-erected tank:
(1) external inspection
results, for five years;
(2)
internal inspection final reports, for the life of the tank;
(3) specifications for the tank floor
coating, for the life of the coating;
(4) design specifications, including anode
and rectifier placement, for the cathodic protection system, for the life of
the system;
(5) record of results
of all bimonthly rectifier reading results and annual cathodic protection
surveys, for three years;
(6)
specifications for the tank gauging system, for the life of the
system;
(7) daily gauge readings,
for three years;
(8) specifications
for the overfill protection system, for the life of the system;
(9) record of results of annual testing or
calibration of the gauging and overfill protection systems, for one
year;
(10) records of leak testing,
including date, method, operator, and results, for three years; and
(11) records of any major tank modifications
or repairs, for the life of the tank;
B. for each underground substance
transmission line:
(1) information addressing
the line segment, including age, material, diameter, location shown on a scaled
map, type of service, pressure rating, and any special conditions of service,
for the life of the line;
(2)
specifications for any leak safeguards, such as pipe coating or wrapping,
cathodic protection, double walled, or leak detection system, for the life of
the safeguard; and
(3) record of
results of inspections and leak tests, including date, method, operator, and
results, for three years; and
C. for each secondary containment area:
records of visual inspections, for one year.
Unless otherwise addressed in the terms and conditions of
the permit, the major facility permittee shall retain all data specified in
this part. The permittee shall, upon agency request, make the data available to
the agency for viewing and copying.
Statutory Authority: MS s
115.03
