Mount Shasta Municipal Code Part IV Industrial Wastewaters

(A) No person shall discharge or cause to be discharged any industrial wastewaters directly or indirectly to sewerage facilities owned by the City without first obtaining a City permit for industrial wastewater discharge.

(B) The permit for industrial wastewater discharge may require pretreatment of industrial wastewaters before discharge, restriction of peak flow discharges, discharge of certain wastewaters only to specified sewers of the City, relocation of point of discharge, prohibition of discharge of certain wastewater components, restriction of discharge to certain hours of the day, payment of additional charges to defray increased costs of the City created by the wastewater discharge and such other conditions as may be required to effectuate the purpose of this chapter.

(C) No City permit for industrial wastewater discharge is transferable without the prior written consent of the Director of Public Works.

(D) No person shall discharge industrial wastewaters in excess of the quantity or quality limitations set by the permit for industrial wastewater discharge. Any person desiring to discharge wastewaters or use facilities which are not in conformance with the industrial wastewater permit should apply to the City for an amended permit. (Ord. CCO-99-05, 1999; Ord. 331 § 401, 1975)

(A) Applicants for a permit for industrial wastewater discharge shall complete a City application form. The City may require additional information on the characteristics of the wastewater discharge beyond that required on the application form.

(B) Upon receipt of all required information, the application shall be processed and, upon approval, be signed by a representative of the City and one copy returned to the applicant. When properly signed, the application form shall constitute a valid permit for industrial wastewater discharge.

(C) The application shall be approved if the applicant has complied with all applicable requirements of this chapter and furnished to the City all requested information and if the Director of Public Works determines that there is adequate capacity in the City’s facilities to convey, treat and dispose of the wastewaters. (Ord. CCO-99-05, 1999; Ord. 331 § 402, 1975)

The City may change the restrictions or conditions of a permit for industrial wastewater discharge from time to time as circumstances may require. The City shall allow an industrial discharger a reasonable period of time to comply with any changes in the industrial wastewater permit required by the City. (Ord. CCO-99-05, 1999; Ord. 331 § 403, 1975)

(A) The Director of Public Works may suspend a permit for industrial wastewater discharge for a period of not to exceed 45 days when such suspension is necessary in order to stop a discharge which presents an imminent hazard to the public health, safety or welfare, to the local environment or to the City’s sewerage system.

(B) Any discharger notified of a suspension of his industrial wastewater permit shall immediately cease and desist the discharge of all industrial wastewater to the sewerage system. In the event of a failure of the discharger to comply voluntarily with the suspension order, the Director of Public Works shall take such steps as are reasonably necessary to ensure compliance.

(C) Any suspended discharger may file with the Director of Public Works a request for hearing in which event the City Council shall meet within 14 days of the receipt by the Director of Public Works of such request. The Council shall hold a hearing on the suspension and shall either confirm or revoke the action of the Director of Public Works. Reasonable notice of the hearing shall be given to the suspended discharger in the manner provided for in MSMC 13.56.080. At this hearing the suspended discharger may appear personally or through counsel, cross-examine witnesses, and present evidence in his/her own behalf.

(D) In the event that the Council fails to meet within the time set forth in subsection (C) of this section or fails to make a determination within a reasonable time after the close of the hearing, the order of suspension shall be stayed until a determination is made either confirming or revoking the action of the Director of Public Works.

(E) The Director of Public Works shall reinstate the industrial wastewater permit upon proof of satisfactory compliance with all discharge requirements of the City. (Ord. CCO-99-05, 1999; Ord. 331 § 404, 1975)

(A) The City Council may revoke a permit for industrial wastewater discharge upon a finding that the discharger has violated any provision of this chapter. No revocation shall be ordered until a hearing on the question has been held by the City Council. At this hearing, the discharger may appear personally or through counsel, cross-examine witnesses and present evidence in his own behalf. Notice of the hearing shall be given to the discharger in accordance with MSMC 13.56.080 at least 15 days prior to the date of hearing.

(B) Any discharger whose industrial wastewater permit has been revoked shall immediately stop all discharge of any liquid carried wastes covered by the permit to any public sewer that is tributary to a sewer or sewerage system of the City. The Director of Public Works may disconnect or permanently block from such public sewer the industrial connection sewer of any discharger whose permit has been revoked if such action is necessary to ensure compliance with the order of revocation.

(C) Before any further discharge of industrial wastewater may be made by the discharger, he must apply for a new City permit for industrial wastewater discharge and pay all charges that would be required upon initial application together with all delinquent fees, charges and penalties and such other sums as the discharger may owe to the City. Costs incurred by the City in revoking the permit and disconnecting the industrial connection sewer shall be paid for by the discharger before issuance of a new permit for industrial wastewater discharge. (Ord. CCO-99-05, 1999; Ord. 331 § 405, 1975)

(A) In most cases, the concentration or amount of any particular constituent which will be judged to be excessive or unreasonable cannot be foreseen but will depend on the results of technical determinations and the actions of regulatory agencies. The list of constituents which may be regulated provides specific limits only where they are now reasonably well established. The other constituents in the list are presented with the objective of enumerating the types of wastes which will be regulated from time to time.

(B) Except as provided in MSMC 13.56.330, no person shall discharge or cause to be discharged to a public sewer, which directly or indirectly connects to the City’s sewerage system, the following wastes:

(1) Any gasoline, benzene, naphtha, solvent, fuel oil or any liquid, solid or gas that would cause or tend to cause flammable or explosive conditions to result in the sewerage system;

(2) Any waste containing toxic or poisonous solids, liquids or gases in such quantities that, alone or in combination with other waste substances, may create a hazard for humans, animals or the local environment, interfere detrimentally with wastewater treatment processes, cause a public nuisance, or cause any hazardous condition to occur in the sewerage system;

(3) Any waste having a pH lower than 6.0 or having any corrosive or detrimental characteristic that may cause injury to wastewater treatment or maintenance personnel or may cause damage to structures, equipment or other physical facilities of the sewerage system;

(4) Any solids or viscous substances of such size or in such quantity that they may cause obstruction to flow in the sewer or be detrimental to proper wastewater treatment plant operations. These objectionable substances include, but are not limited to, asphalt, dead animals, offal, ashes, sand, mud, straw, industrial process shavings, metal, glass, rags, feathers, tar, plastics, wood, whole blood, paunch manure, bones, hair and fleshings, entrails, paper dishes, paper cups, milk containers, or other similar paper products, either whole or ground;

(5) Any rainwater, stormwater, groundwater, street drainage, subsurface drainage, roof drainage, yard drainage, water from yard fountains, ponds or lawn sprays or any other uncontaminated water;

(6) Any water added for the purpose of diluting wastes which would otherwise exceed applicable maximum concentration limitations;

(7) Any nonbiodegradable cutting oils, commonly called soluble oil, which form persistent water emulsions;

(8) Any excessive concentrations of nonbiodegradable oil, petroleum oil or refined petroleum products;

(9) Any dispersed biodegradable oils and fats, such as lard, tallow or vegetable oil, in excessive concentrations that would tend to cause adverse effects on the sewerage system;

(10) Any waste with an excessively high concentration of cyanide;

(11) Any unreasonably large amounts of undissolved or dissolved solids;

(12) Any waste with excessively high BOD, COD or decomposable organic content;

(13) Any strongly odorous waste or waste tending to create odors;

(14) Any wastes containing over 0.1 milligram/liter of dissolved sulfides;

(15) Any wastes with a pH high enough to cause alkaline incrustations on sewer walls;

(16) Any substance promoting or causing the promotion of toxic gases;

(17) Any waste having a temperature of 120 degrees Fahrenheit or higher;

(18) Any wastes requiring an excessive quantity of chlorine or other chemical compound used for disinfection purposes;

(19) Any excessive amounts of chlorinated hydrocarbon or organic phosphorus type compounds;

(20) Any excessive amounts of deionized water, steam condensate or distilled water;

(21) Any waste containing substances that may precipitate, solidify or become viscous at temperatures between 50 degrees Fahrenheit and 100 degrees Fahrenheit;

(22) Any waste producing excessive discoloration of wastewater or treatment plant effluent;

(23) Any garbage or waste that is not ground sufficiently to pass through a three-eighths-inch screen;

(24) Any wastes containing excessive quantities of iron, boron, chromium, phenols, plastic resins, copper, nickel, zinc, lead, mercury, cadmium, selenium, arsenic or any other objectionable materials toxic to humans, animals, the local environment or to biological or other wastewater treatment processes;

(25) Any blow-down or bleed water from cooling towers or other evaporative coolers exceeding one-third of the make-up water;

(26) Any single pass cooling water;

(27) Any quantity of radioactive material waste;

(28) Recognizable portions of the human anatomy.

(C) No person shall discharge or cause to be discharged to any public sewer which directly or indirectly connects to the City’s sewerage system any wastes, if in the opinion of the Director of Public Works such wastes may have an adverse or harmful effect on sewers, maintenance personnel, wastewater treatment plant personnel or equipment, treatment plant effluent quality, public or private property, or may otherwise endanger the public, the local environment or create a public nuisance. The Director of Public Works, in determining the acceptability of specific wastes, shall consider the nature of the waste and the adequacy and nature of the collection, treatment and disposal system available to accept the waste.

(D) The Director of Public Works shall from time to time prepare a list of the maximum permissible quantities or concentrations of certain constituents in industrial wastewater flows and otherwise issue detailed directions for meeting the requirements of this section. (Ord. CCO-99-05, 1999; Ord. CCO-96-07 § 79, 1996; Ord. 331 § 406, 1975)

(A) Hospitals, clinics, offices of medical doctors, and convalescent homes:

(1) May discharge, through a City approved grinder installation with inlet size and design features suitable for its intended use and so constructed that all particles pass through a maximum three-eighths-inch opening, wastes of the following categories:

(a) Wet organic kitchen wastes from food preparation and disposal but excluding all paper and plastic items;

(b) Disposable hypodermic needles, syringes and associated articles following their use;

(c) Infectious wastes, defined as:

(i) Laboratory and surgical operating room wastes except as excluded in subsection (A)(2)(b) of this section,

(ii) Wastes from outpatient areas and emergency rooms similar to those included in subsection (A)(1)(c)(i) of this section,

(iii) Equipment, instruments, utensils and other materials of a disposable nature that may harbor or transmit pathogenic organisms and that are used in the rooms of patients having a suspected or diagnosed communicable disease which by the nature of the disease is required to be isolated by public health agencies.

(2) Shall not discharge to the sewer by any means:

(a) Solid wastes generated in the rooms of patients who are isolated because of a suspected or diagnosed communicable disease;

(b) Recognizable portions of the human anatomy;

(c) Wastes excluded by other provisions of this chapter except as specifically permitted in subsection (A)(1) of this section;

(d) All solid wastes not included in subsection (A)(1) of this section.

(B) Nothing in this section shall be construed to limit the authority of the Health Officer of Siskiyou County to define wastes as being infectious and, with the concurrence of the Director of Public Works of the City of Mt. Shasta, to require that they be discharged to the sewer. (Ord. CCO-99-05, 1999; Ord. 331 § 407, 1975)

If sewerage capacity is not available, the City may require the industrial wastewater discharger to restrict his discharge until sufficient capacity can be made available. The City may refuse service to persons locating facilities in areas where their proposed quantity or quality of industrial wastewater is unacceptable in the available treatment facility. (Ord. CCO-99-05, 1999; Ord. 331 § 408, 1975)

(A) An industrial wastewater pretreatment system or device may be required by the Director of Public Works to treat industrial flows prior to discharge to the sewer when it is necessary to restrict or prevent the discharge to the sewer of certain waste constituents, to distribute more equally over a longer time period any peak discharges of industrial wastewaters or to accomplish any pretreatment result required by the Director of Public Works. All pretreatment systems or devices shall be approved by the Director of Public Works but such approval shall not absolve the industrial discharger of the responsibility of meeting any industrial effluent limitation required by the City. In special cases, the Director of Public Works may require construction of sewer lines by the discharger to convey certain industrial wastes to a specific City trunk sewer. All pretreatment systems judged by the Director of Public Works to require engineering design shall have plans prepared and signed by an engineer of suitable discipline licensed by the State of California.

(B) Normally, a gravity separation interceptor, equalizing tank, neutralization chamber and control manhole will be required respectively to remove prohibited settleable and floatable solids, to equalize wastewater streams varying greatly in quantity and/or quality, to neutralize low or high pH flows and to facilitate inspection, flow measurement and sampling. Floor drains from commercial or manufacturing buildings, warehouses, or multi-use structures shall not discharge directly to the sewer, but shall first discharge to a gravity separation interceptor. (Ord. CCO-99-05, 1999; Ord. 331 § 409, 1975)

(A) All domestic or sanitary wastewaters from restrooms, showers, drinking fountains, etc., shall be kept separate from all industrial wastewaters until the industrial wastewaters have passed through any required pretreatment system or device.

(B) A control manhole of a design approved by the Director of Public Works shall be furnished and installed by certain designated industrial wastewater dischargers to facilitate inspection, sampling and flow measurements by personnel of the City. This control manhole shall be located off the industrial premises or, if within the plant fence, a special locked gate adjacent to the manhole and at a location approved by the City shall be provided, with keys to the gate lock given to the City. Unrestricted access to this control manhole shall be available to authorized personnel of the City at all times. The control manhole may be used as a junction manhole for domestic sewage and industrial wastes provided the junction occurs downstream of the sampling or flow measuring point. (Ord. CCO-99-05, 1999; Ord. 331 § 410, 1975)

(A) Periodic measurements of flow rates, flow volumes, COD and suspended solids for use in determining the annual industrial wastewater treatment surcharge and such measurements of other constituents believed necessary by the Director of Public Works shall be made by all industrial wastewater dischargers, unless specifically relieved of such obligation by the Director of Public Works. All sampling, analyses and flow measurements of industrial wastewaters shall be performed by a State-certified independent laboratory, by a laboratory of an industrial discharger approved by the Director of Public Works or by personnel of the City. If performed by City personnel, an appropriate charge shall be paid by the discharger requesting the tests. Prior to submittal to the City of data developed in the laboratory of an industrial discharger, the results shall be verified by a responsible administrative official of the industrial discharger under penalty of perjury.

(B) All wastewater analyses shall be conducted in accordance with the appropriate procedure contained in “Standard Methods.” If no appropriate procedure is contained therein, the standard procedure of the industry or a procedure judged satisfactory by the Director of Public Works shall be used to measure wastewater constituents.

Any independent laboratory or discharger performing tests shall furnish any required test data or information on the test methods or equipment used, if requested to do so by the Director of Public Works.

(C) All dischargers making periodic measurements shall furnish and install at the control manhole or other appropriate location a calibrated flume, weir, flow meter or similar device approved by the Director of Public Works and suitable factors to determine peak and average flow rates for the specific industrial wastewater discharge.

(D) The sampling, analysis and flow measurement procedures, equipment and results shall be subject at any time to inspection by the City. Sampling and flow measurement facilities shall be such as to provide safe access to authorized personnel.

(E) Those industrial wastewater dischargers required by the Director of Public Works to make periodic measurements of industrial wastewater flows and constituents shall annually make the minimum number of such measurements required. The minimum requirement for such periodic measurements shall be at least one 24-hour measurement per year. Representative samples of the industrial wastewater shall be obtained at least once per hour over the 24-hour period, properly refrigerated, composited according to measured flow rates during the 24 hours and analyzed for the specified wastewater constituents. Dischargers required to sample on only a few days per year shall sample during the periods of highest wastewater flow and wastewater constituent discharges. Industrial plants with large fluctuations in quantity or quality of wastewater may be required to provide continuous sampling and analyses for every working day. When required by the Director of Public Works, dischargers shall install and maintain in proper order automatic flow-proportional sampling equipment and/or automatic analysis and recording equipment.

(F) Measurements to verify the quantities of waste flows and waste constituents reported by industrial dischargers will be conducted on a random basis by personnel of the City. (Ord. CCO-99-05, 1999; Ord. 331 § 411, 1975)

(A) Should measurements or other investigations reveal that the industrial discharger is discharging a flow rate, or a quantity of flow, chemical oxygen demand or suspended solids significantly in excess of that stated on the industrial wastewater permit or in excess of the quantities reported to the City by the discharger and upon which the industrial wastewater treatment surcharge is based, the discharger shall apply for an amended industrial wastewater permit and shall be assessed for all delinquent charges together with the penalty and interest provided for in MSMC 13.56.060. Before these charges shall be assessed at least two additional 24-hour samples and flow measurements shall be obtained by the City with all costs of sampling and analyses to be paid by the discharger.

(B) For the purpose of establishing the correct treatment surcharge, the data obtained in these samplings along with any other relevant information obtained by the City or presented by the discharger shall be used by the Director of Public Works in determining the quantity parameters for use in the surcharge formula. An industrial discharger found in violation shall, in the absence of other evidence, be presumed to have been discharging at the determined parameter values over the preceding three years or subsequent to the previous City verification of quantity parameters, whichever period is shorter. (Ord. CCO-11-05 § 38, 2011; Ord. CCO-99-05, 1999; Ord. 331 § 412, 1975)

The Director of Public Works may classify dischargers by industrial categories and establish an industrial wastewater treatment surcharge based upon average flow quality and flow quantity for the industrial category adjusted by some commonly recognized parameter selected by the Director of Public Works that establishes the relative size of the industrial discharger being charged. (Ord. CCO-99-05, 1999; Ord. 331 § 413, 1975)

Any industrial wastewater discharger who discharges or causes the discharge of prohibited wastewaters which cause damage to the City’s facilities, detrimental effects on treatment processes or any other damages resulting in costs to the City shall be liable to the City for all damages occasioned thereby. (Ord. CCO-99-05, 1999; Ord. 331 § 414, 1975)

In respect to trade secrets, it is determined that the public interest served by not making said records public clearly outweighs the public interest served by the disclosure of said records. Accordingly, any trade secrets acquired by the City in the course of implementation or enforcement of this chapter shall not be made public except to the extent necessary to enforce this chapter. (Ord. CCO-99-05, 1999; Ord. 331 § 415, 1975)