MIL-HDBK-1022A
Page
MAJOR REHABILITATION
12.1
Introduction ............................
197
12.2
General Requirements ....................
197
12.3
Aboveground Fuel Storage Tank
Rehabilitation ..........................
197
12.3.1
Increase Manhole Sizes ..................
198
12.3.2
Replace Tank Floors .....................
198
12.3.2.1
Double Bottom With Washed Sand
Layer and Liner .........................
198
12.3.2.2
Double Bottom With Concrete
Layer and New Steel Bottom ..............
199
12.3.2.3
Double Steel Bottom .....................
199
12.3.2.4
Single Bottom With Liner ................
199
12.3.3
Aboveground Vertical Tank Inspections ...
200
12.3.4
Replace Floating Roof Tanks With Fixed
Roofs ...................................
200
12.3.5
Product Recovery Systems ................
200
12.3.6
Coatings ................................
201
12.3.7
Isolation Valves ........................
201
12.3.8
Alarms and High Level Shut-off Valves ...
201
12.4
Underground Operating Tanks .............
201
12.4.1
Manholes ................................
201
12.4.2
Interior Coatings .......................
202
12.5
Hydrant Systems .........................
202
12.5.1
Pumps ...................................
202
12.5.2
Filters/Separators ......................
202
12.5.3
Control Systems .........................
203
12.5.4
Electrical Systems ......................
203
12.5.5
Lateral Control Pits ....................
203
12.5.6
Distribution Piping .....................
204
12.5.7
Control Valves ..........................
204
12.5.8
Hydrant Outlets .........................
204
12.6
Dikes, Liners, and Basins ...............
204
12.7
Leak Detection ..........................
205
12.8
Cathodic Protection .....................
205
12.9
Isolation Valves ........................
205
12.10
Soil and Groundwater Remediation ........
205
12.11
Liquefied Petroleum Gas (LPG) Facilities
206
12.12
Pipeline Inspection .....................
206
12.12.1
Inspection ..............................
206
12.12.2
Smart Pigging ...........................
206
12.12.2.1
General .................................
206
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