The heavy industrial or MH district is intended to apply to areas devoted to normal operations of industries subject only to regulations as are needed to control congestion and protect surrounding areas.
(Ord. 632-91 § 19.01, 10-22-1991)
The following uses and structures are permitted in the MH district:
(1) 
Uses permitted in the ML district as defined in WMC § 18.70.020.
(2) 
Wholesale lumberyards, lumber mills, grain elevators and storage.
(3) 
Pottery kilns and ceramic works of heavy industrial types.
(4) 
Concrete batch plants.
(5) 
Blacksmith shops and casting foundries.
(6) 
The following when enclosed with a solid wall or fence not less than six feet in height and of a type approved by the planning commission: building material storage yard, contractors' storage yard, and junkyard and auto-wrecking yard.
(7) 
Fuel yards.
(Ord. 632-91 § 19.02, 10-22-1991; Ord. 664-00 § 19.02, 6-27-2000)
The following uses and structures may be permitted in the MH district only if a conditional use permit has first been secured:
Retail stores and businesses which, in the opinion of the planning commission, are similar to uses included in WMC § 18.60.030 (CG district).
(Ord. 632-91 § 19.03, 10-22-1991)
(1) 
Industrial Uses.
(a) 
Minimum lot area: 10,000 square feet.
(b) 
Minimum Yard Requirements.
(i) 
Front: none.
(ii) 
Side: none, except as required by building code or other regulations.
(iii) 
Rear: none.
(c) 
Required parking spaces: see WMC § 18.120.020.
(d) 
Loading Area. Private off-street space for the handling of all materials and equipment.
(e) 
Maximum building height limit: 50 feet.
(Ord. 632-91 § 19.04, 10-22-1991)