Pennsylvania Code › Title 34 - LABOR AND INDUSTRY › Part I - Department of Labor and Industry › Chapter 14a - STORAGE AND USE OF FLAMMABLE AND COMBUSTIBLE LIQUIDS › Subchapter A - GENERAL PROVISIONS › OUTSIDE AND ABOVEGROUND STORAGE › Section 14a.1 - Relative location to property

Current through Register Vol. 54, No. 28, July 13, 2024
(a)
Tables.
The following tables apply to relative location to
					 property lines, public ways and other property:
(1) Aboveground tanks for the storage of
					 flammable or combustible liquids, except those liquids with boilover
					 characteristics and unstable liquids, operating at pressures not in excess of
					 2-1/2 psig and equipped with emergency venting which do not permit pressures to
					 exceed 2 1/2 psig shall be located in accordance with the following table:
TABLE 1
Type of
								  Tank
Protection
Minimum
								  Distance in Feet From Property Line Which May be Built Upon, Including the
								  Opposite Side of a Public Way
Minimum Distance in Feet
								  From Nearest Side of Any Public Way or Nearest Building on Same Property (See
								  Note)
Floating roof
Protection for
								  exposures
1/2 times diameter of tank but need not exceed 90
								  feet
1/6 times diameter of tank but need not exceed 30 feet
None
Diameter of tank but need
								  not exceed 175 feet
1/6 times diameter of tank but need not exceed 30
								  feet
Vertical with weak roof to shell
								  seam
Approved foam or inerting system on the tank
1/2 times
								  diameter of tank but need not exceed 90 feet and shall not be less than 5
								  feet
1/6 times diameter of tank but need not exceed 30 feet and shall
								  not be less than 5 feet
Protection for
								  exposures
Diameter of tank but need not exceed 175 feet
1/3
								  times diameter of tank but need not exceed 60 feet
None
2 times diameter of tank
								  but need not exceed 350 feet
1/3 times diameter of tank but need not
								  exceed 60 feet
Horizontal and vertical with emergency relief
								  venting to limit pressures to 2½ psig
Approved inerting system
								  on the tank or approved foam system on vertical tanks
1/2 times Table 5
								  but shall not be less than 5 feet
1/2 times Table 5 but shall not be
								  less than 5 feet
Protection for exposures
Table
								  5
Table 5
None
2 times Table
								  5
Table 5
NOTE
-No pump or tank shall be placed
						within the legal right-of-way limits of any State highway or any highway under
						the jurisdiction of DOT.
(2)
					 Aboveground tanks for the storage of flammable or combustible liquids, except
					 those liquids with boilover characteristics and unstable liquids, operating at
					 pressures exceeding 2½ psig or equipped with emergency venting which
					 will permit pressures to exceed 2½ psig shall be located in accordance
					 with the following table:
TABLE 2
Type of
								  Tank
Protection
Minimum
								  Distance in Feet From Property Line Which May be Built Upon, Including the
								  Opposite Side of aPublic Way
Minimum Distance in Feet
								  From Nearest Side of Any Public Way or Nearest Building on Same Property (See
								  Note)
Any type
Protection for
								  exposures
1 1/2 times Table 5 but shall not be less than 25
								  feet
1 1/2 times Table 5 but shall not be less than 25 feet
None
3 times Table 5 but shall
								  not be less than 50 feet
1 1/2 times Table 5 but shall not be less than
								  25 feet
Note
-No pump or tank shall be placed
						within the legal right-of-way limits of any State highway or any highway under
						the jurisdiction of DOT.
(3)
					 Aboveground tanks for the storage of flammable or combustible liquids with
					 boilover characteristics shall be located in accordance with the following
					 table:
TABLE 3
Type of
								  Tank
Protection
Minimum
								  Distance in Feet From Property Line Which May be Built Upon, Including the
								  Opposite Side of a Public Way
Minimum Distance in Feet
								  From Nearest Side of Any Public Way or Nearest Building on Same Property (See
								  Note)
Floating roof
Protection for
								  exposures
Diameter of tank but need not exceed 175 feet
1/3
								  times diameter of tank but need not exceed 60 feet
None
2 times diameter of tank
								  but need not exceed 350 feet
1/3 times diameter of tank but need not
								  exceed 60 feet
Approved foam or inerting
								  system
Diameter of tank but need not exceed 175 feet
1/3 times
								  diameter of tank but need not exceed 60 feet
Fixed roof
Protection for
								  exposures
2 times diameter of tank but need not exceed 350
								  feet
2/3 times diameter of tank but need not exceed 120 feet
None
4 times diameter of tank
								  but need not exceed 350 feet
2/3 times diameter of tank but need not
								  exceed 120 feet
Note
-No pump or tank shall be placed
						within the legal right-of-way limits of any State highway or any highway under
						the jurisdiction of DOT.
(4)
					 Aboveground tanks for the storage of unstable liquids shall be located in
					 accordance with the following table:
TABLE 4
Type of
								  Tank
Protection
Minimum
								  Distance in Feet From Property Line Which May be Built Upon, Including the
								  Opposite Side of a Public Way
Minimum Distance in Feet
								  From Nearest Side of Any Public Way or Nearest Building on Same Property (See
								  Note)
Horizontal and vertical tanks with emergency
								  relief venting to permit pressure not in excess of 2½ psig
Tank
								  protected with any one of the following: approved water spray, approved
								  inerting, approved insulation and refrigeration, approved
								  barricade
Table 5 but not less than 25 feet
Not less than 25
								  feet
Protection for exposures
2 1/2
								  times Table 5 but not less than 50 feet
Not less than 50 feet
None
5 times Table 5 but not
								  less than 100 feet
Not less than 100 feet
Horizontal and vertical tanks with emergency
								  relief venting to permit pressure over 2½ psig
Tank protected
								  with any one of the following: approved water spray, approved inerting,
								  approved insulation and refrigeration, approved barricade
2 times Table
								  5 but not less than 50 feet
Not less than 50 feet
Protection for exposures
4 times
								  Table 5 but not less than 100 feet
Not less than 100 feet
None
8 times Table 5 but not
								  less than 150 feet
Not less than 150 feet
Note
-No pump or tank shall be placed
						within the legal right-of-way limits of any State highway or any highway under
						the jurisdiction of DOT.
(5)
					 The minimum distance used in Tables 1, 2, and 4 is set forth in the following
					 table:
TABLE 5
Capacity of Tank (in
								  gallons)
Minimum Distance in Feet From Property Line
								  Which May be Built Upon, Including the Opposite Side of a Public
								  Way
Minimum Distance in Feet From Nearest Side of Any
								  Public Way or Nearest Building on Same Property See Note)
275 or less
5
5
276 to 750
10
5
751 to 12,000
15
5
12,001 to 30,000
20
5
30,001 to 50,000
30
10
50,001 to 100,000
50
15
100,001 to 500,000
80
25
500,001 to 1,000,000
100
35
1,000,001 to
								  2,000,000
135
45
2,000,001 to 3,000,000
165
55
3,000,001 or more
175
60
NOTE
-No pump or tank shall be placed
						within the legal right-of-way limits of any State highway or any highway under
						the jurisdiction of DOT.