40.230.080 Industrial Districts (ML, MH)

A.    Purpose.

    The light industrial (ML) and heavy industrial (MH) districts provide for a wide range of industrial and manufacturing uses including manufacturing, assembly, fabrication, processing, and related research and development; mineral and resource extraction and processing; bulk handling and storage (warehousing); and truck, marine, and rail distribution. The regulations in this section are intended to establish appropriate development and performance standards for industrial activities with the greatest potential for adverse impacts to minimize the presence of nuisance factors and hazards. The regulations in this section are intended to protect the industrial land base for industrial economic development and employment opportunities by limiting residential, institutional, commercial, office and other non-industrial uses to those necessary for the convenience/support of industrial activities. The regulations in this section also apply to industrial lands outside the urban growth areas.

1.    Light Industrial District (ML). The light industrial district is intended to provide for those less-intensive industrial uses which produce little noise, odor and pollution. It also provides for resource-based uses and service uses that are deemed compatible with light industrial uses.

2.    Heavy Industrial District (MH). The heavy industrial district is intended to preserve, enhance and create areas containing industrial and manufacturing activities which are potentially incompatible with most other uses, and is appropriate for areas which have extensive rail or shipping facilities.

B.    Uses.

    The uses set out in Table 40.230.080-1 are examples of uses allowable in the industrial zone districts. The appropriate review authority is mandatory.

    “P” – Uses allowed subject to approval of applicable permits.

    “C” – Conditional uses which may be permitted, subject to the approval of a conditional use permit as set forth in Section 40.520.030.

    “X” – Uses specifically prohibited.

The following list of permitted uses is based on the North American Industrial Classification System (NAICS). NAICS is organized in a hierarchical structure much like the existing SIC (Standard Industrial Classification). NAICS industries are identified by a 6-digit code, in contrast to the 4-digit SIC code. The longer code accommodates the larger number of sectors and allows more flexibility in designating subsectors. The use of NAICS codes for permitted uses refers only to the use of a particular site, rather than the type of industry involved. For example, office uses for manufacturing firms are treated as offices and are not permitted in the industrial zones.

    The first two (2) digits designate a major economic sector (formerly division) such as agriculture or manufacturing.

    The third digit designates an economic subsector (formerly major group) such as crop production or apparel manufacturing.

    The fourth digit designates an industry group, such as grain and oil seed farming or fiber, yarn and thread mills.

    The fifth digit designates the NAICS industry such as wheat farming or broadwoven fabric mills.

    Retail uses are marked with a “1” in Table 40.230.080-1 below. See the footnotes at the end of the table for an explanation of permitted development.

Table 40.230.080-1. Uses 1997 North American Industrial Classification System (NAICS)						ML	MH
A.    Resource Uses.
11 – Agriculture, Forestry, Fishing and Hunting
	111	Crop production				P	P
		1111	Oilseed and grain farming			P	P
			11111	Soybean farming		P	P
			11112	Oilseed (except soybean) farming		P	P
			11113	Dry pea and bean farming		P	P
			11114	Wheat farming		P	P
			11115	Corn farming		P	P
			11116	Rice farming		P	P
			11119	Other grain farming		P	P
				111191	Oilseed and grain combination farming	P	P
				111199	Other grain farming	P	P
		1112	Vegetable and melon farming			P	P
			11121	Vegetable and melon farming		P	P
				111211	Potato farming	P	P
				111219	Other vegetable (except potato) and melon farming	P	P
		1113	Fruit and tree nut farming			P	P
			11131	Orange groves		P	P
			11132	Citrus (except orange) groves		P	P
			11133	Noncitrus fruit and tree nut farming		P	P
				111331	Apple orchards	P	P
				111332	Grape vineyards	P	P
				111333	Strawberry farming	P	P
				111334	Berry (except strawberry) farming	P	P
				111335	Tree nut farming	P	P
				111336	Fruit and tree nut combination farming	P	P
				111339	Other noncitrus fruit farming	P	P
		1114	Greenhouse, nursery, and floriculture production			P	P
			11141	Food crops grown under cover		P	P
				111411	Mushroom production	P	P
				111419	Other food crops grown under cover	P	P
			11142	Nursery and floriculture production		P	P
				111421	Nursery and tree production	P	P
				111422	Floriculture production	P	P
		1119	Other crop farming			P	P
			11191	Tobacco farming		P	P
			11192	Cotton farming		P	P
			11193	Sugarcane farming		P	P
			11194	Hay farming		P	P
			11199	All other crop farming		P	P
				111991	Sugar beet farming	P	P
				111992	Peanut farming	P	P
				111998	All other miscellaneous crop farming	P	P
	112	Animal production				P	P
		1121	Cattle ranching and farming			P	P
			11211	Beef cattle ranching and farming, including feedlots		P	P
				112111	Beef cattle ranching and farming	P	P
				112112	Cattle feedlots	P	P
			11212	Dairy cattle and milk production		P	P
			11213	Dual purpose cattle ranching and farming		P	P
		1122	Hog and pig farming			P	P
			11221	Hog and pig farming		P	P
		1123	Poultry and egg production			P	P
			11231	Chicken egg production		P	P
			11232	Broilers and other meat type chicken production		P	P
			11233	Turkey production		P	P
			11234	Poultry hatcheries		P	P
			11239	Other poultry production		P	P
		1124	Sheep and goat farming			P	P
			11241	Sheep farming		P	P
			11242	Goat farming		P	P
		1125	Animal aquaculture			P	P
			11251	Animal aquaculture		P	P
				112511	Finfish farming and fish hatcheries	P	P
				112512	Shellfish farming	P	P
				112519	Other animal aquaculture	P	P
		1129	Other animal production			P	P
			11291	Apiculture		P	P
			11292	Horse and other equine production		P	P
			11293	Furbearing animal and rabbit production		P	P
			11299	All other animal production		P	P
	113	Forestry and logging				P	P
		1131	Timber tract operations			P	P
			11311	Timber tract operations		P	P
		1132	Forest nurseries and gathering of forest products			P	P
			11321	Forest nurseries and gathering of forest products		P	P
		1133	Logging			P	P
			11331	Logging		P	P
	114	Fishing, hunting and trapping				P	P
		1141	Fishing			P	P
			11411	Fishing		P	P
				114111	Finfish fishing	P	P
				114112	Shellfish fishing	P	P
				114119	Other marine fishing	P	P
		1142	Hunting and trapping			P	P
			11421	Hunting and trapping		P	P
	115	Support activities for agriculture and forestry				P	P
		1151	Support activities for crop production			P	P
			11511	Support activities for crop production		P	P
				115111	Cotton ginning	P	P
				115112	Soil preparation, planting, and cultivating	P	P
				115113	Crop harvesting, primarily by machine	P	P
				115114	Post-harvest crop activities (except cotton ginning)	P	P
				115115	Farm labor contractors and crew leaders	P	P
				115116	Farm management services	P	P
		1152	Support activities for animal production			P	P
			11521	Support activities for animal production		P	P
		1153	Support activities for forestry			P	P
			11531	Support activities for forestry		P	P
21 – Mining
	211	Oil and gas extraction				X	C6
		2111	Oil and gas extraction			X	C6
			21111	Oil and gas extraction		X	C6
				211111	Crude petroleum and natural gas extraction	X	C6
				211112	Natural gas liquid extraction	X	C6
	212	Mining (except oil and gas)				X	C6
		2121	Coal mining			X	C6
			21211	Coal mining		X	C6
				212111	Bituminous coal and lignite surface mining	X	C6
				212112	Bituminous coal underground mining	X	C6
				212113	Anthracite mining	X	C6
		2122	Metal ore mining			X	C6
			21221	Iron ore mining		X	C6
			21222	Gold ore and silver ore mining		X	C6
				212221	Gold ore mining	X	C6
				212222	Silver ore mining	X	C6
			21223	Copper, nickel, lead, and zinc mining		X	C6
				212231	Lead ore and zinc ore mining	X	C6
				212234	Copper ore and nickel ore mining	X	C6
			21229	Other metal ore mining		X	C6
				212291	Uranium-radium-vanadium ore mining	X	C6
				212299	All other metal ore mining	X	C6
		2123	Nonmetallic mineral mining and quarrying			X	P6
			21231	Stone mining and quarrying		X	P6
				212311	Dimension stone mining and quarrying	X	P6
				212312	Crushed and broken limestone mining and quarrying	X	P6
				212313	Crushed and broken granite mining and quarrying	X	P6
				212319	Other crushed and broken stone mining and quarrying	X	P6
			21232	Sand, gravel, clay, and ceramic and refractory minerals mining and quarrying		X	P6
				212321	Construction sand and gravel mining	X	P6
				212322	Industrial sand mining	X	P6
				212324	Kaolin and ball clay mining	X	P6
				212325	Clay and ceramic and refractory minerals mining	X	P6
			21239	Other nonmetallic mineral mining and quarrying		X	P6
				212391	Potash, soda, and borate mineral mining	X	P6
				212392	Phosphate rock mining	X	P6
				212393	Other chemical and fertilizer mineral mining	X	P6
				212399	All other nonmetallic mineral mining	X	P6
	213	Support activities for mining				X	C6
		2131	Support activities for mining			X	C6
			21311	Support activities for mining		X	C6
				213111	Drilling oil and gas wells	X	C6
				213112	Support activities for oil and gas operations	X	C6
				213113	Support activities for coal mining	X	C6
				213114	Support activities for metal mining	X	C6
				213115	Support activities for nonmetallic minerals (except fuels)	X	C6
22 Utilities10
	221	Utilities				X	C
		2211	Electric Power Generation, Transmission and Distribution			X	C
			22111	Electric Power Generation		X	C
				221111	Hydroelectric Power Generation	X	C
				221112	Fossil Fuel Electric Power Generation	X	C
				221113	Nuclear Electric Power Generation	X	C
				221119	Other Electric Power Generation	X	C
			22112	Electric Power Transmission, Control, and Distribution		P	P
				221121	Electric Bulk Power Transmission and Control	P	P
				221122	Electric Power Distribution	P	P
		2212	Natural Gas Distribution			P	P
			22121	Natural Gas Distribution		P	P
				221210	Natural Gas Distribution	P	P
		2213	Water, Sewage and Other Systems			P	P
			22131	Water Supply and Irrigation Systems		P	P
				221310	Water Supply and Irrigation Systems	P	P
			22132	Sewage Treatment Facilities		C	P
				221320	Sewage Treatment Facilities	C	P
			22133	Steam and Air-Conditioning Supply		P	P
				221330	Steam and Air-Conditioning Supply	P	P
23 Construction10
	236	Construction of Buildings				P7	P7
		2361	Residential Building Construction			P7	P7
			23611	Residential Building Construction		P7	P7
				236115	New Single-Family Housing Construction (Except Operative Builders)	P7	P7
				236116	New Multifamily Housing Construction (Except Operative Builders)	P7	P7
				236117	New Housing Operative Builders	P7	P7
				236118	Residential Remodelers	P7	P7
		2362	Nonresidential Building Construction			P7	P7
			23621	Industrial Building Construction		P7	P7
				236210	Industrial Building Construction	P7	P7
			23622	Commercial and Institutional Building Construction		P7	P7
				236220	Commercial and Institutional Building Construction	P7	P7
	237	Heavy and Civil Engineering Construction				P7	P7
		2371	Utility System Construction			P7	P7
			23711	Water and Sewer Line and Related Structures Construction		P7	P7
				237110	Water and Sewer Line and Related Structures Construction	P7	P7
			23712	Oil and Gas Pipeline and Related Structures Construction		P7	P7
				237120	Oil and Gas Pipeline and Related Structures Construction	P7	P7
			23713	Power and Communication Line and Related Structures Construction		P7	P7
				237130	Power and Communication Line and Related Structures Construction	P7	P7
		2372	Land Subdivision			P7	P7
			23721	Land Subdivision		P7	P7
				237210	Land Subdivision	P7	P7
		2373	Highway, Street, and Bridge Construction			P7	P7
			23731	Highway, Street, and Bridge Construction		P7	P7
				237310	Highway, Street, and Bridge Construction	P7	P7
		2379	Other Heavy and Civil Engineering Construction			P7	P7
			23799	Other Heavy and Civil Engineering Construction		P7	P7
				237990	Other Heavy and Civil Engineering Construction	P7	P7
	238	Specialty Trade Contractors				P7	P7
		2381	Foundation, Structure, and Building Exterior Contractors			P7	P7
			23811	Poured Concrete Foundation and Structure Contractors		P7	P7
				238110	Poured Concrete Foundation and Structure Contractors	P7	P7
			23812	Structural Steel and Precast Concrete Contractors		P7	P7
				238120	Structural Steel and Precast Concrete Contractors	P7	P7
			23813	Framing Contractors		P7	P7
				238130	Framing Contractors	P7	P7
			23814	Masonry Contractors		P7	P7
				238140	Masonry Contractors	P7	P7
			23815	Glass and Glazing Contractors		P7	P7
				238150	Glass and Glazing Contractors	P7	P7
			23816	Roofing Contractors		P7	P7
				238160	Roofing Contractors	P7	P7
			23817	Siding Contractors		P7	P7
				238170	Siding Contractors	P7	P7
			23819	Other Foundation, Structure, and Building Exterior Contractors		P7	P7
				238190	Other Foundation, Structure, and Building Exterior Contractors	P7	P7
		2382	Building Equipment Contractors			P7	P7
			23821	Electrical Contractors		P7	P7
				238210	Electrical Contractors	P7	P7
			23822	Plumbing, Heating, and Air-Conditioning Contractors		P7	P7
				238220	Plumbing, Heating, and Air-Conditioning Contractors	P7	P7
			23829	Other Building Equipment Contractors		P7	P7
				238290	Other Building Equipment Contractors	P7	P7
		2383	Building Finishing Contractors			P7	P7
			23831	Drywall and Insulation Contractors		P7	P7
				238310	Drywall and Insulation Contractors	P7	P7
			23832	Painting and Wall Covering Contractors		P7	P7
				238320	Painting and Wall Covering Contractors	P7	P7
			23833	Flooring Contractors		P7	P7
				238330	Flooring Contractors	P7	P7
			23834	Tile and Terrazzo Contractors		P7	P7
				238340	Tile and Terrazzo Contractors	P7	P7
			23835	Finish Carpentry Contractors		P7	P7
				238350	Finish Carpentry Contractors	P7	P7
			23839	Other Building Finishing Contractors		P7	P7
				238390	Other Building Finishing Contractors	P7	P7
		2389	Other Specialty Trade Contractors			P7	P7
			23891	Site Preparation Contractors		P7	P7
				238910	Site Preparation Contractors	P7	P7
			23899	All Other Specialty Trade Contractors		P7	P7
				238990	All Other Specialty Trade Contractors	P7	P7
B.    Manufacturing Uses: See footnote 5.
31 – 33 Manufacturing
	311	Food manufacturing				P	P
		3111	Animal food manufacturing			P	P
			31111	Animal food manufacturing		P	P
				311111	Dog and cat food manufacturing	P	P
				311119	Other animal food manufacturing	P	P
		3112	Grain and oilseed milling			X	P
			31121	Flour milling and malt manufacturing		X	P
				311211	Flour milling	X	P
				311212	Rice milling	X	P
				311213	Malt manufacturing	X	P
			31122	Starch and vegetable fats and oils manufacturing		X	P
				311221	Wet corn milling	X	P
				311222	Soybean processing	X	P
				311223	Other oilseed processing	X	P
				311225	Fats and oils refining and blending	X	P
			31123	Breakfast cereal manufacturing		X	P
		3113	Sugar and confectionery product manufacturing			P	P
			31131	Sugar manufacturing		P	P
				311311	Sugarcane mills	P	P
				311312	Cane sugar refining	P	P
				311313	Beet sugar manufacturing	P	P
			31132	Chocolate and confectionery manufacturing from cacao beans		P	P
			31133	Confectionery manufacturing from purchased chocolate		P	P
			31134	Non-chocolate confectionery manufacturing		P	P
		3114	Fruit and vegetable preserving and specialty food manufacturing			P	P
			31141	Frozen food manufacturing		P	P
				311411	Frozen fruit, juice, and vegetable manufacturing	P	P
				311412	Frozen specialty food manufacturing	P	P
			31142	Fruit and vegetable canning, pickling, and drying		P	P
				311421	Fruit and vegetable canning	P	P
				311422	Specialty canning	P	P
				311423	Dried and dehydrated food manufacturing	P	P
		3115	Dairy product manufacturing			P	P
			31151	Dairy product (except frozen) manufacturing		P	P