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Earlier editions: 2026-09

Title 13 — UTILITY ENTERPRISES – WATER, WASTEWATER AND DRAINAGE›Chapter 13.56 — SEWER CONSTRUCTION AND USE – INDUSTRIAL WASTEWATER DISCHARGES

Mount Shasta Municipal Code Part V Definitions

Mount Shasta Municipal Code · 2026-10 edition · updated 2026-10-05 · Mount Shasta

Cite as: Mount Shasta Municipal Code Part V · Text as of 2026-10-05

13.56.420 Definitions generally.

The definitions given in this part shall be used in the interpretation of this chapter, the issuance of permits, the making of charges for service and all other operations of this chapter unless another meaning for the word is apparent from the context. (Ord. CCO-99-05, 1999; Ord. 331 Appx. A, 1975)

Exceptions & meaning →

13.56.430 Ad valorem tax.

“Ad valorem tax” means the tax levied for the benefit of an individual district on the assessed value of property within its boundaries. (Ord. CCO-99-05, 1999; Ord. 331 Appx. A § 1, 1975)

Exceptions & meaning →

13.56.440 Assessed value.

“Assessed value” means that portion of the total assessed value of the property upon which individual City taxes are levied. (Ord. CCO-99-05, 1999; Ord. 331 Appx. A § 2, 1975)

Exceptions & meaning →

13.56.450 BOD or biochemical oxygen demand.

“BOD” or “biochemical oxygen demand” means the measure of decomposable organic material in domestic or industrial wastewaters as represented by the oxygen utilized over a period of five days at 20 degrees centigrade and as determined by the appropriate procedure in “Standard Methods.” (Ord. CCO-99-05, 1999; Ord. 331 Appx. A § 3, 1975)

Exceptions & meaning →

13.56.460 Chlorine demand.

“Chlorine demand” means the difference between the amount of chlorine added to a wastewater sample and the amount remaining at the end of a 30-minute period as determined by the procedures given in “Standard Methods.” (Ord. CCO-99-05, 1999; Ord. 331 Appx. A § 4, 1975)

Exceptions & meaning →

13.56.470 COD or chemical oxygen demand.

“COD” or “chemical oxygen demand” means the measure of chemically decomposable material in domestic or industrial wastewater as represented by the oxygen utilized as determined by the appropriate procedure described in “Standard Methods.” (Ord. CCO-99-05, 1999; Ord. 331 Appx. A § 5, 1975)

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13.56.480 City.

“City” means the City of Mt. Shasta. (Ord. CCO-99-05, 1999; Ord. 331 Appx. A § 6, 1975)

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13.56.490 Director of Public Works.

“Director of Public Works” means the Director of Public Works of the City of Mt. Shasta. (Ord. CCO-99-05, 1999; Ord. 331 Appx. A § 7, 1975)

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13.56.500 Discharger.

“Discharger” means any person that discharges or causes a discharge to a public sewer. (Ord. CCO-99-05, 1999; Ord. 331 Appx. A § 8, 1975)

Exceptions & meaning →

13.56.510 Dissolved solids.

“Dissolved solids” or “dissolved matter” means the solid matter in solution in the wastewater and shall be obtained by evaporation of a sample from which all suspended matter has been removed by filtration as determined by the procedures in “Standard Methods.” (Ord. CCO-11-05 § 39, 2011; Ord. CCO-99-05, 1999; Ord. 331 Appx. A § 9, 1975)

Exceptions & meaning →

13.56.520 Domestic wastewater.

“Domestic wastewater” means the water-carried wastes produced from noncommercial or nonindustrial activities and which result from normal human living processes. (Ord. CCO-99-05, 1999; Ord. 331 Appx. A § 10, 1975)

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13.56.530 Effluent.

“Effluent” means the liquid outflow of any facility designed to treat, convey or retain wastewater. (Ord. CCO-99-05, 1999; Ord. 331 Appx. A § 11, 1975)

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13.56.540 Formula.

“Formula” means the industrial wastewater treatment surcharge formula as set forth in MSMC 13.56.350. (Ord. CCO-99-05, 1999; Ord. 331 Appx. A § 12, 1975)

Exceptions & meaning →

13.56.550 House connection.

“House connection” means the sewer connecting the building sewer or building waste drainage system to the public sewer for the purpose of conveying domestic wastewater. (Ord. CCO-99-05, 1999; Ord. 331 Appx. A § 13, 1975)

Exceptions & meaning →

13.56.560 Industrial connection sewer.

“Industrial connection sewer” means the sewer connecting the building sewer or building waste drainage system to the public sewer for the purpose of conveying industrial wastewater. (Ord. CCO-99-05, 1999; Ord. 331 Appx. A § 14, 1975)

Exceptions & meaning →

13.56.570 Industrial wastewater.

“Industrial wastewater” means all water-carried wastes and wastewater of the community, excluding domestic wastewater and uncontaminated water, and includes all wastewater from any producing, manufacturing, processing, institutional, commercial, agricultural, or other operation where the wastewater discharged includes significant quantities of wastes of nonhuman origin. (Ord. CCO-99-05, 1999; Ord. 331 Appx. A § 15, 1975)

Exceptions & meaning →

13.56.580 Inspector.

“Inspector” means a person authorized by the Director of Public Works to inspect wastewater generation, conveyance, processing and disposal facilities. (Ord. CCO-99-05, 1999; Ord. 331 Appx. A § 16, 1975)

Exceptions & meaning →

13.56.590 Gravity separation interceptor.

“Gravity separation interceptor” means any facility designed, constructed and operated for the purpose of removing and retaining dangerous, deleterious or prohibited constituents from wastewater by differential gravity separation before discharge to the public sewer. (Ord. CCO-99-05, 1999; Ord. 331 Appx. A § 17, 1975)

Exceptions & meaning →

13.56.600 Lateral sewer, collecting sewer or main line sewer.

“Lateral sewer,” “collecting sewer,” or “main line sewer” means the public sewer usually eight inches or larger in diameter and used to collect wastewater from house connection and industrial connection sewers and transport it to trunk sewers. Lateral, collecting or main line sewers are normally built and maintained by the City. (Ord. CCO-99-05, 1999; Ord. 331 Appx. A § 18, 1975)

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13.56.610 Ordinance.

“Ordinance” means, unless otherwise specified, the ordinance codified in this chapter. (Ord. CCO-99-05, 1999; Ord. 331 Appx. A § 19, 1975)

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13.56.620 Peak flow rate.

“Peak flow rate” means the average rate at which wastewater is discharged to a public sewer during the highest 30-minute flow period in the preceding 12 months. (Ord. CCO-99-05, 1999; Ord. 331 Appx. A § 20, 1975)

Exceptions & meaning →

13.56.630 Person.

“Person” means any individual, partnership, committee, association, corporation, public agency, and any other organization or group of persons, public or private. (Ord. CCO-99-05, 1999; Ord. 331 Appx. A § 21, 1975)

Exceptions & meaning →

13.56.640 Public corporation.

“Public corporation” means this State and any political subdivision thereof, any incorporated municipality therein, any public agency of the State or any political subdivision thereof, or any corporate municipal instrumentality of this State. (Ord. CCO-99-05, 1999; Ord. 331 Appx. A § 22, 1975)

Exceptions & meaning →

13.56.650 Public sewer.

“Public sewer” means any sewer dedicated to public use and whose use is controlled by a public corporation. (Ord. CCO-99-05, 1999; Ord. 331 Appx. A § 23, 1975)

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13.56.660 Radioactive material.

“Radioactive material” means material containing chemical elements that spontaneously change their atomic structure by emitting any particles, rays or energy forms. (Ord. CCO-99-05, 1999; Ord. 331 Appx. A § 24, 1975)

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13.56.670 Section.

“Section” means a section of this chapter. (Ord. CCO-99-05, 1999; Ord. 331 Appx. A § 25, 1975)

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13.56.680 Sewage.

“Sewage” means wastewater. (Ord. CCO-99-05, 1999; Ord. 331 Appx. A § 26, 1975)

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13.56.690 Sewage pumping plant.

“Sewage pumping plant” means any facility designed and constructed to raise wastewater in elevation or to overcome head losses due to pipeline friction. (Ord. CCO-99-05, 1999; Ord. 331 Appx. A § 27, 1975)

Exceptions & meaning →

13.56.700 Sewerage.

“Sewerage” means any and all facilities used for collecting, conveying, pumping, treating and disposing of wastewater. (Ord. CCO-99-05, 1999; Ord. 331 Appx. A § 28, 1975)

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13.56.710 Shall and may.

“Shall” is mandatory and “may” is permissive. (Ord. CCO-99-05, 1999; Ord. 331 Appx. A § 29, 1975)

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13.56.720 Solid wastes.

“Solid wastes” means the nonliquid carried wastes normally considered to be suitable for disposal with refuse at sanitary landfill refuse disposal sites. (Ord. CCO-99-05, 1999; Ord. 331 Appx. A § 30, 1975)

Exceptions & meaning →

13.56.730 Standard Methods.

“Standard Methods” means the current edition of “Standard Methods for the Examination of Water and Wastewater” as published by the American Public Health Association. (Ord. CCO-99-05, 1999; Ord. 331 Appx. A § 31, 1975)

Exceptions & meaning →

13.56.740 Suspended solids.

“Suspended solids” or “suspended matter” means the insoluble matter suspended in wastewater that is separable by laboratory filtration in accordance with the procedure described in “Standard Methods.” (Ord. CCO-99-05, 1999; Ord. 331 Appx. A § 32, 1975)

Exceptions & meaning →

13.56.750 Trade secrets.

“Trade secrets” shall include but is not limited to any formula, plan, pattern, process, tool, mechanism, compound, procedure, production data, or compilation of information which is not patented, which is known only to certain individuals within a commercial concern who are using it to fabricate, produce, or compound an article of trade or a service having commercial value, and which gives its user an opportunity to obtain a business advantage over competitors who do not know or use it. (Ord. CCO-99-05, 1999; Ord. 331 Appx. A § 33, 1975)

Exceptions & meaning →

13.56.760 Trunk sewer.

“Trunk sewer” means a sewer constructed, maintained and operated by the City that conveys wastewater to the City’s treatment facilities and into which lateral and collecting sewers discharge. (Ord. CCO-99-05, 1999; Ord. 331 Appx. A § 34, 1975)

Exceptions & meaning →

13.56.770 Uncontaminated water.

“Uncontaminated water” means any wasted water of the community not contaminated or polluted with wastewater and which is suitable or could readily be made suitable for discharge to the municipal stormwater drainage system. (Ord. CCO-99-05, 1999; Ord. 331 Appx. A § 35, 1975)

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13.56.780 User.

“User” means discharger. See MSMC 13.56.500. (Ord. CCO-99-05, 1999; Ord. 331 Appx. A § 36, 1975)

Exceptions & meaning →

13.56.790 Wastewater.

“Wastewater” means the water-carried wastes of the community derived from human or industrial sources including domestic wastewater and industrial wastewater. Rainwater, groundwater or drainage of uncontaminated water is not wastewater. (Ord. CCO-99-05, 1999; Ord. 331 Appx. A § 37, 1975)

Exceptions & meaning →

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