The purpose of this chapter is to:
A. 
Establish uniform requirements for nondomestic discharges into the wastewater interceptor, treatment and disposal system used and owned jointly with other public entities as parties to the certain joint exercise of powers agreement entitled "An Agreement Creating the Sewer Authority Mid-Coastside," dated February 3, 1976, as amended, whereby there was established the Sewer Authority MidCoastside (herein, Authority), by and between the Montara Sanitary District, Granada Sanitary District and the city of Half Moon Bay;
B. 
Provide for and regulate the disposal of nondomestic wastewater into the sanitary sewer system of the agency in such a manner and to such extent as may be reasonably necessary to maintain and to increase the ability of such system to handle and dispose of nondomestic wastewater without decreasing the ability of such system to handle and dispose of all sanitary sewage;
C. 
Improve opportunities to recycle and reclaim treated effluent and wastewater sludge;
D. 
Protect the physical structures of said sanitary sewer system and the efficient functioning of its component parts;
E. 
Protect the agency and Authority, and their personnel, and preserve and protect the health, safety and comfort of the public;
F. 
Comply with all applicable laws, rules, regulations and orders of the state of California and of the United States, including but not limited to, 40 CFR 403;
G. 
Provide for the assessment and collection of various fees and other charges reasonably necessary for the implementation, administration and enforcement of the nondomestic wastewater source control program;
H. 
Delegate to Authority certain duties and responsibilities as set forth in this chapter.
(Ord. 9-94 § 2(part), 1994)
A. 
General.
1. 
Words, phrases or terms not specifically defined in this section, and having a technical or specialized meaning shall be defined as set forth in the latest edition of "Standard Methods for the Examination of Water and Wastewater," published by the American Public Health Association, the American Water Works Association and the Water Pollution Control Federation.
2. 
References to waste constituents and characteristics shall have the meanings ascribed thereto in the aforesaid "Standard Methods for the Examination of Water and Wastewater," and measurements thereof shall be as set forth in such publication, or as established by federal or state regulatory agencies.
B. 
Specific definitions. The following words or phrases wherever used in this chapter shall have the following meanings unless the context otherwise requires:
"Ammonia"
means that form of nitrogen in the tri-negative oxidation state which is chemically definable as a compound.
"Biochemical oxygen demand"
means the quantity of oxygen expressed in parts per million by weight, utilized in the biochemical oxidation of organic matter under standard laboratory conditions for five consecutive days at a temperature of 20.0×C.
"Building sewer"
means a sewer conveying wastewater from the premises of a discharger to the sanitary sewer system.
"Categorical standards"
means national pretreatment standards specifying quantities or concentrations of pollutants or pollutant properties which may be discharged to a publicly owned treatment works by existing or new industrial dischargers in specific industrial subcategories established as separate regulations under the appropriate sub-part of 40 Code of Federal Regulations, Chapter I, Subchapter N. These standards, unless specifically noted otherwise, shall be in addition to the general prohibitions established in Article II of this chapter.
"Commercial discharger"
means any discharger who is neither a residential discharger nor an industrial discharger.
"Compatible pollutant"
means biochemical oxygen demand, suspended.solids, pH and fecal coliform bacteria, additional pollutants identified in Authority's National Pollutant Discharge Elimination System (NPDES) permit, or of any amendments thereto, and such other pollutants as may be designated by Authority upon a finding by the manager that such pollutants are substantially treated and removed by the sanitary sewer system.
"Contamination"
means an impairment of the quality of the waters of the agency or state by waste to a degree which creates a hazard to the public health. Contamination shall include any equivalent effect resulting from the disposal of wastewater whether or not waters of the agency or state are affected thereby.
"Discharger"
means any person who discharges, causes or permits the discharge of wastewater into the sanitary sewer system.
"Domestic source"
means any residential or commercial discharger which only discharges domestic wastewater.
"Domestic wastewater"
means wastewater from a residential or commercial discharger which does not exceed the domestic wastewater maximum allowable concentration limits and does not contain prohibited wastewater as defined in Article II of this chapter.
Domestic Wastewater–Maximum Allowable Concentration Limits: All values except settleable solids and pH are expressed in mg/L(*).
Constituent
Concentration
Solids, total
1200
Dissolved, total
850
Fixed
525
Volatile
325
Suspended, total
350
Fixed
75
Volatile
275
Settleable solids, mL/L-hr
20
Biochemical oxygen demand, 5-day, 20ºC
400
Total Organic Carbon (TOC)
290
Chemical Oxygen Demand (COD)
1000
Nitrogen (total as N)
85
Organic
35
Free Ammonia
50
Nitrites
0
Nitrates
0
Phosphorus (total as P)
15
Organic
5
Inorganic
10
Chlorides
350
pH
6 to 9
Oil and grease (animal or vegetable origin)
200
Oil and grease (mineral or petroleum origin)
100
Notes:
(*)
mg/L = g/m3
1.8 x (°C) + 32 = °F.
"Fee"
means a rental or other fee established pursuant to this chapter for services and facilities furnished by or on behalf of the agency to any premises in order to carry out the terms of this chapter.
"Garbage"
means solid waste from the preparation, cooking and dispensing of foods, and from the handling, storage and sale of produce.
"Grease"
means grease, oil, fat or other ether soluble matter, and shall include each of the following two types:
1. 
Dispersed grease
, which means grease which is not floatable grease;
2. 
Floatable grease
, which means grease which floats on the surface of quiescent sewage water or other liquid or which floats upon dilution of the liquid with water.
"Holding tank waste"
means any waste from sewage or waste disposal holding tanks such as are associated with vessels, chemical toilets, campers, trailers, motor homes, septic tanks and vacuum pump tank trucks.
"Incompatible pollutant"
means any pollutant which is not a compatible pollutant.
"Industrial discharger"
means any discharger identified in the Standard Industrial Classification (SIC) Manual, prepared and published by the Executive Office of Management and Budget of the United States, classified within divisions A, B, D, E and I therein, the wastewater of which has any one or more of the following characteristics: (1) a flow of one thousand gallons or more per average work day; (2) a flow or pollutant loading greater than five percent of the design capacity of Authority's wastewater treatment plant; (3) contains toxic pollutants in amounts defined in standards issued pursuant to Section 307(a) of the Federal Water Pollution Control Act Amendments of 1972 (Public Law 92-500; 33 U.S.C. 1151, et seq.); (4) produces a significant impact (determined by the manager) either individually or in combination with other contributing industries, on the sanitary sewer system, or upon the quality of effluent from the sanitary sewer system; (5) adopted categorical standards; or (6) constitutes a nondomestic waste.
"Industrial discharger classification"
means classification of dischargers based upon classifications set forth in the Standard Industrial Classification (SIC) Manual, 1972 edition, prepared and published by the Executive Office of Management and Budget of the United States, as amended and supplemented, under the following divisions:
1. 
Division A -- Agricultural, forestry and fishing;
2. 
Division B -- Mining;
3. 
Division D -- Manufacturing;
4. 
Division E -- Transportation, communications, electric, gas and sanitary;
5. 
Division I -- Service.
"Industrial wastewater"
means the wastewater from the production, manufacturing or processing operations of any industrial discharger, where wastewater is used for the removal of wastes other than domestic waste from the premises.
"Interference"
means an inhibition or disruption of the sanitary sewer system, the wastewater treatment process or operation, or the sewage sludge removal or disposal process, which causes or significantly contributes either to a violation of Authority's NPDES permit or to the prevention of sewage sludge being disposed of by Authority in accordance with applicable state and federal statutory provisions and regulations or permits issued thereunder.
"Manager"
means the manager of Authority, or his/her designee, including, but not limited to, duly authorized personnel of the Authority.
"Mass emission rate"
means the weight of material discharged to the sanitary sewer system during a specified time interval. Unless otherwise specified, the mass emission rate shall mean pounds per day of a particular waste constituent or combination of constituents.
"Nondomestic source"
means any residential or commercial discharger which discharges or could potentially discharge nondomestic wastewater, and any industrial discharger.
"Nondomestic wastewater"
means wastewater from a residential or commercial discharger which exceeds domestic wastewater maximum allowable concentration limits as defined in this section, prohibited wastewater as defined by Article II of this chapter, or wastewater from an industrial discharger.
"Pass-through"
means the discharge of pollutants through the sanitary sewer system into navigable waters in quantities or concentrations which cause or significantly contribute to violation of Authority's NPDES permit.
"Permit (or nondomestic wastewater source control permit)"
means a permit issued hereunder in order to implement and enforce the nondomestic wastewater source control program herein established.
"Permitted discharge standards"
means standards established by the Authority specifying qualities or concentrations of pollutants or pollutant properties which may be discharged into the sanitary sewer system by a nondomestic source.
"Permittee"
means any discharger required to have a NDWSCP permit.
"Person"
means any individual, firm, company, partnership, association, private corporation, public corporation or governmental entity, authority or agency, and the officers, agents or employees of such organizations.
"pH"
means the logarithm of the reciprocal of the weight of hydrogen ions in grams per liter of solution.
"Pollutant"
means dredged spoil, solid waste, incinerator residue, sewage, garbage, sewage sludge, munitions, chemical wastes, biological materials, radioactive materials, heat, wrecked or discarded equipment, rock, sand, cellar dirt and industrial, municipal and agricultural waste discharged into water.
"Pollution"
means an alteration of the quality of the waters of the agency or state by waste to a degree which unreasonably affects such waters. The term pollution may also include contamination.
"Premises"
means a parcel of land, or portion thereof, including any improvements thereon, which is directly or indirectly connected to the sanitary sewer system. Each dwelling unit of a duplex, apartment or any other multifamily residence shall be deemed a separate premises. Subject to the provisions of this paragraph, the agency shall determine what constitutes a premises.
"Priority pollutants"
means all pollutants as defined by the "General Pretreatment Regulations" of the Environmental Protection Agency, found at 40 CFR 401 and 403, as the same may be amended from time to time.
"Requirement of law" or "other requirements of law"
means any pertinent provision of the Federal Water Pollution Control Act as amended by the Federal Water Pollution Control Act Amendments of 1972 (Public Law 92-500, 33 U.S.C. 1151 et seq.), or of any statute, ordinance, rule, regulation, order, directive, or of Authority's National Pollutant Discharge Elimination System (NPDES) permit, or of any amendments thereto.
"Residential discharger"
means any discharger from a residential dwelling.
"SAM"
means the Sewer Authority Mid-Coastside, a public entity established by that certain agreement entitled "An Agreement Creating the Sewer Authority Mid-Coastside," dated February 3, 1976, and any successor entity thereof.
"Sanitary sewer system"
means all sewers, treatment plants and other facilities., including the agency's share of Authority's interceptor, treatment and disposal system, owned by the agency, or operated by the agency, or on its behalf by the Authority, for carrying, collecting, pumping, treating and disposing of sanitary sewage and industrial wastewater.
"Sewage treatment plant"
means the arrangement of devices and structures for treating sanitary sewage owned and operated by the Authority.
"Sewer"
means a pipe or conduit for carrying sewage.
"Standard methods"
means the examination and analytical procedures for industrial waste set forth in the most recent edition of "Standard Methods for the Examination of Water, Sewage, and Industrial Waste" published jointly by the American Public Health Association and the Water Pollution Control Federation. All analytical measurements shall be in conformity with such Standard Methods or Environmental Protection Agency recommended procedures, and shall be performed by a laboratory certified by the California Department of Health Services.
"Storm waters"
means the flow in sewers resulting from rainfall.
"Suspended solids"
means solids that either float on the surface of, or are in suspension in, water, sewage or liquids.
"Unpolluted water"
means water to which no constituent has been added, either intentionally or accidentally, which would render such water unacceptable to the agency or Authority for disposal to storm or natural drainages, or directly to surface waters.
"Waste"
means sewage and any and all waste substances, whether liquid, solid, gaseous or radioactive, associated with human habitation, or of human or animal origin, or from any producing, manufacturing or processing operation of whatever nature, including such waste placed within containers of whatever nature prior to, and for purposes of, disposal.
"Wastewater"
means waste and water, whether treated or untreated, discharged into, or permitted to enter into the sanitary sewer system.
"Wastewater constituents and characteristics"
means the individual chemical, physical, bacteriological and radiological parameters, including volume and flow rate, and such other parameters that serve to define, classify or measure the contents, quality, quantity or strength of wastewater.
"Waters of the agency or state"
means any water, whether surface, underground, and whether saline or nonsaline, within the boundaries of the agency, or within the boundaries of the agency and flowing into, touching or otherwise combined with waters outside the limits of the agency but within the boundaries of the state.
(Ord. 9-94 § 2(part), 1994)
The ordinance codified in this chapter and similar documents to be adopted by the Authority and the other public agency members thereof, establishes the nondomestic wastewater source control program (the "NDWSCP").
There are two categories of dischargers addressed in this chapter, to wit:
A. 
Domestic Source. If residential or commercial discharger does not exceed the domestic wastewater maximum allowable concentration limits and does not discharge a prohibited wastewater, then the discharger will be classified as a domestic source and a permit is not required pursuant to the provisions of this chapter.
B. 
Nondomestic Source.
1. 
If a residential or commercial discharger exceeds domestic wastewater maximum allowable concentration limits or discharges or could potentially discharge a prohibited wastewater, then the discharger will be classified as a nondomestic source, and a permit will be required pursuant to the provisions hereof.
2. 
Any industrial discharger is, by definition, a nondomestic source and is required to obtain a permit pursuant to the provisions hereof.
C. 
The chart below illustrates the relationship of domestic and nondomestic sources to residential, commercial and industrial dischargers.
Domestic Source
Nondomestic Source
Residential Discharger
X
X *
Commercial Discharger
X
X *
Industrial Discharger
X
Notes:
* Only if discharger exceeds or could potentially exceed domestic wastewater maximum allowable concentration limits, or discharges or could potentially discharge a prohibited waste.
(Ord. 9-94 § 2(part), 1994)