Millbrae Municipal Code Art. V Industrial Wastewater Pretreatment Requirements

The superintendent or agent of the superintendent shall determine a facility's need for pretreatment. In making such determinations, facilities will be evaluated on, but not limited to, such factors as kind of activities, discharge flow rates and strength of discharge.

(1976 Code § 8-4.501; Amended by Ord. 720 § 1; Ord. 637 § 2)

Users identified by the superintendent or agent of the superintendent must provide necessary wastewater treatment to comply with this chapter, and shall achieve compliance with all Federal Categorical Pretreatment standards, local limitations and the prohibitions set out in Article III of this chapter, Discharge Regulations, within the time limitations as specified by federal, state or local control authorities. Any facilities or equipment to achieve compliance shall be provided, operated and maintained at the user's expense. Detailed plans describing such facilities and operating procedures shall be submitted to the superintendent for approval before such facilities are constructed. The review of such plans and operating procedures shall in no way relieve the user from the responsibility of modifying such facilities as necessary to produce a discharge acceptable to the superintendent under the provisions of this chapter.

(1976 Code § 8-4.502; Amended by Ord. 720 § 1; Ord. 637 § 2)

A.

1. An industrial wastewater pretreatment system or device may be required by the city to treat industrial flows prior to discharge to the city's wastewater collection system when it is necessary to restrict or prevent the discharge 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 city. All pretreatment systems or devices shall be approved by the superintendent or pretreatment supervisor, but such approval shall not absolve the discharger of the responsibility of meeting any industrial-effluent limitation required by the city.

2. In special cases, the city may require construction of sanitary sewer pipelines by the discharger to convey certain industrial wastes to a specific city trunk in the sanitary sewer. All pretreatment systems judged by the superintendent to require engineering design shall have plans prepared and signed by an engineer of suitable discipline licensed in the state of California.

B. A gravity-separation interceptor, equalizing tank, neutralization chamber and control manhole is required 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 sanitary sewer, but shall first discharge to a gravity-separation interceptor. The type and size of these facilities will be determined by the pretreatment supervisor.

(1976 Code § 8-4.503; Amended by Ord. 720 § 1; Ord. 637 § 2)

A. No user shall discharge or cause to be discharged any industrial wastewaters directly or indirectly to the city's wastewater collection system without first obtaining a permit for industrial wastewater discharge from the pretreatment supervisor.

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 sanitary sewers, relocation of point of discharge, prohibition of certain wastewater components, restriction of discharge to certain hours of the day, payment of additional charges to defray increased cost to the city created by the wastewater discharge, and such other conditions as may be required to effectuate the purpose of these rules and regulations.

C. No user shall discharge industrial wastewaters in excess of the quantity or quality limitations set by their wastewater discharge permit. Any user desiring to discharge wastewaters or use facilities which are not in conformance with their wastewater discharge permit must notify the superintendent or pretreatment supervisor prior to discharging the wastewaters or using the facilities and obtain required approval.

D. State requirements and limitations on discharges shall apply in any case where they are more stringent than federal requirements and limitations or those in this chapter.

E. Upon the promulgation of any federal categorical pretreatment standards for a particular industrial subcategory, the federal standards for that particular industrial subcategory, if more stringent than limitations imposed under this chapter for sources in that subcategory, shall immediately supersede the limitations imposed under this chapter. The superintendent shall notify all persons affected by changes in federal standards and requirements as stated in 40 CFR Section 403.8.

F. Contractors operating in the city may be required to read and sign a contractor's operating agreement either at the time of business license application or building permit application. The contractor's operating agreement shall serve notice to contractors of their duty to comply with all Millbrae Municipal Code regulations, including those contained in the city sanitary sewer ordinance, and shall be deemed to be a binding document between the city and the contractor.

G. Any violation of the terms and conditions of an industrial wastewater discharge permit shall be deemed a violation of this chapter and subjects the industrial wastewater discharge permittee to the sanctions set out in Article VI of this chapter, Enforcement Remedies. Obtaining an industrial wastewater discharge permit does not relieve a permittee of its obligation to comply with all federal pretreatment standards or requirements or with any other requirements of federal, state and local law.

(1976 Code § 8-4.504; Amended by Ord. 720 § 1; Ord. 637 § 2)

A. Users seeking an industrial wastewater discharge permit shall complete and file with the superintendent or pretreatment supervisor an application in the form prescribed by the city and accompanied by the applicable fees as established in Article VII of this chapter, Fees and Charges. The applicant may be required to minimally submit, in units and terms appropriate for evaluation, the following information:

1. Name and address of applicant and facility;

2. Volume of wastewater to be discharged;

3. Wastewater constituents and characteristics, including but not limited to those mentioned in Article III of this chapter, Discharge Regulations, as determined by a laboratory approved by the city;

4. Time and duration of discharge;

5. Average and thirty-minute peak wastewater flow rates, including daily, monthly and seasonable variations, if any;

6. Site plans, floor plans, mechanical and plumbing plans and details to show all sanitary sewers, floor drains, storm drains and appurtenances by size, location and elevation, and all points of discharge;

7. Description of all activities, facilities and plant processes on the premises, including a list of all raw materials and chemicals which are or could be accidentally or intentionally discharged to the city's wastewater collection system;

8. Accidental spill/slug discharge plan;

9. Chemical or solvent management plans;

10. Waste minimization plan;

11. Each product produced by kind, amount and rate of production;

12. Type and amount of raw materials processed (average and maximum per day);

13. Number and type of employees and proposed or actual hours of operation;

14. Any other information as may be deemed necessary by the superintendent or pretreatment supervisor to evaluate the permit application.

B. Incomplete or inaccurate applications will not be processed and will be returned to the user for revision.

(1976 Code § 8-4.505; Ord. 740 § 5; Amended by Ord. 720 § 1; Ord. 637 § 2)

A. All wastewater discharge permit applications and/or reports submitted to the city must be signed by an authorized representative in accordance with signatory requirements as set forth in 40 CFR 403.12(1) and contain the following certification statement or one comparable:

B. For a corporation, the authorized representative must be a responsible corporate officer, president, secretary, treasurer, vice-president in charge of principal business function or manager of manufacturing, production, or operation for facilities employing more than two hundred fifty or having gross annual sales exceeding twenty-five million dollars if authority to sign has been delegated. For a partnership or sole proprietorship, the authorized representative is the general partner or sole proprietor, respectively.

(1976 Code § 8-4.506; Amended by Ord. 720 § 1; Ord. 637 § 2)

Wastewater discharge permits, issued by the superintendent, shall include such conditions as are deemed reasonably necessary by the superintendent or pretreatment supervisor to prevent pass-through or interference of the POTW, protect the quality of the water body receiving the POTW's plant effluent, protect worker health and safety, facilitate sludge management and disposal, protect against damage to the POTW and are expressly subject to all provisions of this chapter and all other applicable regulations, user charges and fees as established in Article VII of this chapter, Fees and Charges. Permits may contain the following:

A. A statement that indicates wastewater discharge permit duration, which in no event shall exceed five years;

B. A statement that the wastewater discharge permit is nontransferable;

C. Specifications for monitoring programs which may include self-monitoring, sampling, reporting, notification and record-keeping requirements. These requirements shall include an identification of pollutants to be monitored, sampling location, sampling frequency and sample type based on federal, state and local law;

D. The unit charge or schedule of user charges and fees for the wastewater to be discharged to the city's wastewater collection system;

E. Limits on the average and maximum wastewater constituents and characteristics;

F. Limits on average and maximum rate and time of discharge or requirements for flow regulations and equalization;

G. Requirements for installation and maintenance of inspection and sampling facilities;

H. Requirements for the installation of pretreatment technology, pollution control, or construction, at owner's expense, of appropriate containment devices, designed to reduce, eliminate or prevent the introduction of pollutants into the POTW;

I. Requirements for the development, implementation, and submittal of an accidental spill-control/slug discharge plan and other special conditions, as circumstances require, including best management practices necessary to adequately prevent accidental, unanticipated or nonroutine discharges;

J. Development and implementation of pollution prevention plans to reduce the amount of pollutants discharged to the POTW;

K. Compliance schedules;

L. Requirements for submission of various compliance reports;

M. Requirements for maintaining and retaining plant records relating to wastewater discharge as specified by the city, and affording city access thereto;

N. Requirements for notifying the city prior to introducing any new wastewater constituents, or changes in the volume or character of the wastewater, or changes in the wastewater treatment system;

O. Requirements for notification of accidental spills, slug discharges and bypasses;

P. Requirements for preparation and routine review of solvent management plans as circumstances require;

Q. Statement of applicable civil and criminal penalties for violation of pretreatment standards and requirements; and

R. Other conditions as deemed appropriate by the superintendent to ensure compliance with this chapter, and state and federal laws, rules and regulations.

(1976 Code § 8-4.507; Ord. 740 § 5; Amended by Ord. 720 § 1; Ord. 637 § 2)

A. Background. Industrial local pretreatment limits may be expressed through conditions in the user's permit as narrative statements (typically prohibitions) such as those set forth in MMC § 8.20.290, numerical values such as those listed in MMC § 8.20.310, or a combination of both expressed as best management practices (BMPs) (40 CFR 403.5(c)(4)). Historically, BMPs only applied to groups of low-flow discharges that had similar processes and discharged similar types of wastewater (e.g., photo processors and dentist offices). However, with the recent lowering of indirect discharge limitations and improved analytical methods, the city will begin using BMPs in cases where it is not practical or economically feasible for an industrial user to monitor for or attain specific numerical pretreatment limits. This section gives the city the ability to shift from numerical end-of-pipe chemical controls on an industrial user to BMPs and pollution prevention as an effective way for the city to achieve compliance with NPDES permit limits. BMPs are enforceable under 40 CFR 403.5(d).

B. BMP Use Examples.

1. There is insufficient flow from an industrial user or a category of industrial users to obtain a representative wastewater sample (e.g., dentist offices, photo processors).

2. The proposed local limit is less than the detection limit and/or quantification level (40 CFR Part 136) of the most stringent analytical procedure.

3. The BMP is clearly the most economically feasible method for regulating the pollutant of concern.

C. BMP Removal from Permit. The city may consider a request to remove the BMP requirement from the indirect discharge permit if the permittee can demonstrate that the discharge is reasonably expected to meet the numeric local limit. In cases where the numeric local limit is calculated to be negative and where the industry's effluent sampling results for pollutants with BMP requirements are below the quantification level, the city may also consider a permit modification request. Relaxation of the permit conditions does not allow the industry to return to its previous methods of operation.

D. Inspections, monitoring, and numeric effluent limits may still be required by the city to verify that the industry remains in compliance. At a minimum, a certification statement is required certifying that the industry is operating under its approved BMP and no changes have been implemented.

E. BMPs may be used in the discretion of the city where appropriate to meet such pretreatment standards in a practical and economic fashion.

F. Industrial users subject to BMPs as a means of complying with standards of this part shall maintain documentation to demonstrate compliance with all BMP standards for the term of the permit or five years, whichever is longer.

(Ord. 740 § 5)

A. A permittee may petition to appeal the terms of a permit to the director within thirty days of the issue date of the permit. The petition must be filed prior to initiating discharges to the city's wastewater collection system if discharges have been suspended or are dependent upon the issuance of the permit. The petition must be in writing. Failure to timely submit a petition for review shall be deemed to be a waiver of the appeal. In the petition, the permittee must indicate the permit provisions which are the subject of objections, the reasons for this objection, and the alternative condition sought to be placed in the permit.

B. The effectiveness of the permit shall not be stayed pending consideration of the appeal by the director. If, after considering the petition, the director determines that reconsideration is proper, the director shall remand the permit back to the superintendent for reissuance. Those permit provisions being revised by the superintendent shall be stayed pending reissuance. If the director determines that the permit terms are appropriate, the petition will be denied in writing.

(1976 Code § 8-4.508; Amended by Ord. 720 § 1; Ord. 637 § 2)

The terms and conditions of a permit may be subject to modification by the city during the term of the permit as a result of a change in the character or volume of the wastewater discharge, changes in business operations or practices, changes in state or federal limitations and requirements, violations of effluent limits, or factors which may affect the POTW's effluent or their ability to dispose of solid wastes.

(1976 Code § 8-4.509; Amended by Ord. 720 § 1; Ord. 637 § 2)

Wastewater discharge permits shall be issued to a specific user for a specific operation. A wastewater discharge permit shall not be reassigned or transferred or sold to a new owner, new user, different premises or a new or changed operation. An application for a wastewater discharge permit must be submitted within thirty days of change of ownership to the pretreatment supervisor.

(1976 Code § 8-4.510; Amended by Ord. 720 § 1; Ord. 637 § 2)

A user with an expiring wastewater discharge permit shall apply for wastewater discharge permit reissuance by submitting a complete permit application, in accordance with MMC § 8.20.530, a minimum of sixty days prior to the expiration of the user's existing wastewater discharge permit.

(1976 Code § 8-4.511; Amended by Ord. 720 § 1; Ord. 637 § 2)

The superintendent may require those who are proposing to open a new business within the city to complete and submit the report listed in subsection A of this section, and require users who have a current wastewater discharge permit to complete and submit any and all reports such as:

A. Baseline Monitoring Reports (Categorical Users).

1. Existing categorical users currently discharging or scheduled to discharge to the POTW shall submit to the superintendent, within one hundred eighty days after the effective date of a categorical pretreatment standard or a final administrative decision on a category determination under 40 CFR 403.6(a)(4), whichever is later, the information listed in this subsection.

2. An industrial user that is subject to categorical pretreatment standards shall submit to the superintendent, at least one hundred twenty days prior to a proposed discharge from a new or existing industrial business, the method of pretreatment it intends to use to meet applicable categorical standards, an estimate of its anticipated flow and quantity of pollutants to be discharged and the information listed below:

a. Name and address of facility, including the name of the operator and owner;

b. A list of any environmental control permits related to the facility;

c. A brief description of the nature, average rate of production and SIC of the operation, and a schematic diagram indicating discharge points to the POTW from the regulated processes;

d. The average daily flow and maximum daily flow, in gpd, to the POTW from regulated process streams and other streams to allow use of the combined wastestream formula set out in 40 CFR 403.6(e);

e. Measurement of Pollutants. The results of sampling and analysis identifying the nature and concentration, and/or mass, of pollutants in the discharge from each regulated process. Instantaneous, daily maximum and long-term average concentrations, or mass, where required;

f. Certification Statement. A statement, reviewed by the user or authorized representative and certified by a qualified professional, indicating whether pretreatment standards are being met on a consistent basis, and, if not, whether additional operation and maintenance and/or additional pretreatment is required to meet the standards;

g. Compliance Schedule. If additional pretreatment and/or operation and maintenance will be required to meet the pretreatment standards, the shortest schedule by which the user will provide such additional pretreatment and/or operation and maintenance. A compliance schedule pursuant to this section must meet the requirements as set forth in 40 CFR 403.12(b), (c), (d), and (e);

h. All baseline monitoring reports must be signed and certified by the user or an authorized representative in accordance with MMC § 8.20.540.

B. Self-Monitoring Reports.

1. Industrial users shall submit self-monitoring reports as required by the superintendent. This includes, but is not limited to, standards set forth in 40 CFR 403.12, to assess and assure compliance with all provisions in the city sanitary sewer ordinance and national pretreatment categorical limits and standards set forth in 40 CFR, Subchapter N, Section 401 et seq.

2. If self-monitoring results indicate a violation of the user's discharge limits, the user shall report it to the superintendent within twenty-four hours of becoming aware of the violation. The superintendent may require the user to resample within thirty days after becoming aware of a violation in self-monitoring results.

3. All test procedures for sampling and analysis of wastewater for self-monitoring reports or any other purpose must follow the procedures set forth in 40 CFR Part 136 as may be amended and costs are the sole responsibility of the discharger.

C. Periodic Compliance Reports.

1. Except as indicated in subsections (C)(3) and (4) of this section, all industrial users shall, at a frequency determined by the superintendent, but in no case less than twice per year (in June and December), submit a report indicating the nature and concentration of pollutants in the discharge which are limited by pretreatment standards and the measured or estimated average and maximum daily flows for the reporting period.

2. The superintendent shall require appropriate reporting from industrial users with discharges that are not subject to categorical pretreatment standards. These reports may require the user to provide the POTW with documentation, typically through bill of lading, regarding the ultimate disposal of any waste that is prohibited from being discharged to the city's wastewater collection system.

3. If the superintendent so chooses, the reporting requirements for non-significant categorical industrial users (NSCIU) may be reduced; provided, that:

a. Consistent Compliance with Pretreatment Standards. The user, prior to the control authority's findings, must have consistently complied with all applicable categorical pretreatment standards and requirements. See 40 CFR 403.3(v)(2)(i).

b. Documentation and Certification of Compliance. The NSCIU certifies that its discharge is in compliance with all applicable categorical pretreatment standards and requirements and annually submits the certification using the statement in 40 CFR 403.12(q). See 40 CFR 403.3(v)(2)(ii).

c. Signatory Requirements. The annual certification statement must be signed in accordance with requirements in 40 CFR 403.12(l). See 40 CFR 403.12(q).

4. If the superintendent so chooses, the reporting requirements for middle-tier categorical industrial users may be reduced to once per year; provided, that all requirements described in MMC § 8.20.030 continue to be met.

D. Compliance Schedule Progress Reports.

1. Industrial users in violation of their wastewater discharge permit, as required by the superintendent, shall submit compliance schedule progress reports. These reports shall contain progress increments in the form of dates for the commencement and completion of major events leading to the construction and operation of additional pretreatment required for the user who is not meeting applicable pretreatment standards. Such events include, but are not limited to, hiring an engineer, completing preliminary and final plans, executing contracts for major components, commencing and completing construction, and beginning and conducting routine operation.

2. The user shall submit monthly progress reports to the superintendent until all violations have been cleared. The report should contain, as a minimum, whether or not it complied with the increment of progress, the reason for any delay, and, if appropriate, the steps taken by the user to return to the established schedule.

E. Reports of Changed Conditions. Users must report to the superintendent any planned significant changes that will cause a twenty percent or greater increase in wastewater generation, discharge flow, or constituent concentrations or cause any changes in collection methods, treatment processes, discharge practices, including previously unreported pollutants or any other changes which may affect treated or untreated wastewater quality prior to initiating or continuing discharges to the city's wastewater collection system.

F. Reports of Potential Problems.

1. All users must report to the superintendent or the pretreatment supervisor immediately, by telephone, when any discharge, including, but not limited to, accidental, nonroutine, episodic nature, noncustomary batch, or slug load, poses a threat to human health or the environment, or may result in upset, pass-through, damage or interference of the POTW. Users must report to the superintendent or pretreatment supervisor all other accidental or slug discharges within twenty-four hours of the discharge occurring.

2. This report shall be followed, within ten days of the date of occurrence, by a detailed written report describing the causes of the accidental discharge and the measures being taken to prevent similar future occurrences. Such reporting shall not relieve the discharger of any expense, loss, damage, fines, or other liability which may be incurred as a result of damage to the POTW, natural resources, or any other damage to person or property; nor shall such notification relieve the discharger of any fines, penalties, or other liability imposed on the city on account thereof under Section 13350 of the California Water Code or for violations of Section 5650 of the California Fish and Game Code.

G. All written reports will be deemed to have been submitted on the date postmarked. For reports which are not mailed, postage prepaid, into a mail facility serviced by the U.S. Postal Service, the date of receipt of the report shall govern.

(1976 Code § 8-4.512; Ord. 740 § 5; Amended by Ord. 720 § 1; Ord. 637 § 2)

A. All sampling techniques for analyses to be submitted as part of a wastewater discharge permit application or report shall comply with 40 CFR 403.12. All pollutant analysis to be submitted as part of a wastewater discharge permit application or report shall be performed in accordance with the techniques prescribed in 40 CFR Part 136, unless otherwise specified in an applicable categorical pretreatment standard. If 40 CFR Part 136 does not contain sampling or analytical techniques for the pollutant in question, sampling and analysis must be performed in accordance with procedures approved by the EPA. All monitoring results shall be reported to the city in compliance with reporting requirements addressed herein.

B. Except as indicated in subsection C of this section, the user must collect wastewater samples using flow-proportional composite collection techniques. The superintendent must authorize the use of time-proportional sampling or grab samples where the user demonstrates that this will provide a representative sample of the effluent being discharged prior to the submittal of the samples. In addition, grab samples may be required to show compliance with maximum discharge limits.

C. Samples for oil and grease, temperature, pH, cyanide, phenols, sulfides and volatile organic compounds must be obtained using grab collection techniques.

D. When sampling performed by a user indicates a violation, the user must notify the superintendent or pretreatment supervisor within twenty-four hours of becoming aware of the violation. The user shall repeat the sampling and analysis and submit the results to the superintendent within thirty days after becoming aware of the violation. The user may not be required to resample if the industrial waste inspector monitors at the user's facility at least once a month, or if the industrial waste inspector samples between the user's initial sampling and when the user receives the results of the sampling.

E. The superintendent may waive sampling and analysis requirements for a categorical industrial user for a pollutant if the pollutant is not present in the wastestream discharged to the POTW in concentrations greater than background levels present in the industry's water supply; provided, that:

1. The industrial user must provide the results of one or more samples prior to treatment which are representative of all process wastewater.

2. In the event that a pollutant is subsequently found to be present or is expected to be present, the industrial user immediately resumes monitoring and notifies the superintendent.

3. The industrial user submits a certification statement as part of its annual monitoring reporting stating that there has been no increase in the pollutant in its wastewater due to its activities.

Any such waiver granted by the superintendent shall be valid only for the duration of the industrial user's permit. In order to continue the waiver for the period of the next permit, the industrial user must reapply for the waiver, including the submission of appropriate monitoring data.

(1976 Code § 8-4.513; Ord. 740 § 5; Amended by Ord. 720 § 1; Ord. 637 § 2)

All records, reports, monitoring data or documents which pertain to requirements set forth in permits, the city sanitary sewer ordinance, state or federal regulations, or enforcement actions taken by the city against the user shall be retained by the user at the business premises for a minimum of three years. Users shall make records available for inspection and copying by authorized city personnel, as well as representatives of the U.S. EPA.

(1976 Code § 8-4.514; Amended by Ord. 720 § 1; Ord. 637 § 2)

A. User information and data obtained from reports, questionnaires, permit applications, permits and monitoring programs and from inspections shall be available to the public or other governmental agency without restriction unless the user specifically requests and is able to demonstrate to the satisfaction of the superintendent or pretreatment supervisor that the release of such information would divulge information, processes or methods of production entitled to protection as trade secrets of the user. Any such claim of confidentiality must be asserted at the time of submission of confidential materials and in accordance with regulations contained in 40 CFR Part 2.

B. When requested by the person furnishing a report, the portions of a report which might disclose trade secrets or secret processes shall not be made available for inspection by the public but shall be made available to governmental agencies who will have, without any delays, immediate and unlimited access to all records for review of confidential material. Wastewater constituents and characteristics will not be recognized as confidential information.

C. The city's determination whether any information can be kept confidential will be governed by applicable federal and state laws and regulations.

D. Information accepted by the city as confidential shall be made available to the public only to the extent provided by the federal regulations contained in 40 CFR 2.302, Public Information, and applicable state laws and regulations.

(1976 Code § 8-4.515; Amended by Ord. 720 § 1; Ord. 637 § 2)

A. The superintendent shall require monitoring facilities to be provided and operated at the user's expense. Monitoring facilities shall allow for easy and ready access for inspection, sampling and flow measurement of the sanitary sewer lateral and/or internal drainage systems. The facility should normally be located on the user's premises, but the city may, when such a location would be impractical or cause undue hardship on the user, allow the monitoring facility to be constructed in the public street or sidewalk area and located, at the user's expense, so that it will not be obstructed by landscaping or parked vehicles.

B. There shall be ample room in or near such sampling facility to allow accurate sampling and preparation of samples for analysis. The facility, sampling and measuring equipment shall be maintained at all times in a safe and proper operating condition at the expense of the user.

C. Whether constructed on public or private property, the facility shall be in accordance with the city's requirements and all applicable local construction standards and specifications. Construction shall be completed within ninety days following written notification of approval of the facility by the superintendent or pretreatment supervisor.

(1976 Code § 8-4.516; Ord. 740 § 5; Amended by Ord. 720 § 1; Ord. 637 § 2)

The city may, but is not obligated to, inspect the facilities of any user to ascertain whether the provisions of this chapter are being met and all requirements are being complied with. Users or occupants of premises where wastewater is created or discharged shall allow the city or its representative ready access at all times to all parts of the premises for the purposes of inspection, sampling, records examination and copying or the performance of any of their duties. The city, approval authority and the EPA shall have the right to set up on the user's property such devices as are necessary to conduct sampling, inspection, compliance monitoring and/or metering operations. Where a user has security measures in force which would require proper identification and clearance before entry into their premises, the user shall make necessary arrangements with their security guards so that upon presentation of suitable identification, personnel from the city, approval authority and EPA will be permitted to enter, without delay, for the purposes of performing their specific responsibilities.

(1976 Code § 8-4.517; Amended by Ord. 720 § 1; Ord. 637 § 2)

When required by the director, the owner of any property served by a sanitary sewer lateral carrying industrial wastes shall install a suitable control manhole in the sanitary sewer lateral to facilitate observation, sampling and measurement of wastes. Such manhole, when required, shall be located in a safe and accessible place, and shall be constructed in accordance with plans approved by the director. The manhole shall be installed by the owner at his/her expense, and shall be maintained by him/her so as to be safe and accessible at all times.

(1976 Code § 8-4.518; Amended by Ord. 720 § 1; Ord. 637 § 2)

Grease, oil and sand interceptors shall be provided when, in the opinion of the director or superintendent, they are necessary for the proper handling of liquid wastes containing grease or any flammable wastes, sand, or other harmful ingredients, except that such interceptors shall not be required for structures used for residential purposes. All interceptors shall be of a type and capacity approved by the superintendent, and shall be so located as to be readily and easily accessible for cleaning and inspection.

(1976 Code § 8-4.519; Amended by Ord. 720 § 1; Ord. 637 § 2)

All grease, oil and sand interceptors shall be maintained by the owner, at his/her expense, in continuous efficient and effective operation at all times.

(1976 Code § 8-4.520; Amended by Ord. 720 § 1; Ord. 637 § 2)

In order that employees of dischargers may be informed of city requirements, dischargers shall make available to their employees copies of this chapter, together with such other wastewater information and notices which may be furnished by the industrial waste inspector from time to time, directed toward more effective pollution prevention control. A notice shall be furnished by the industrial waste inspector and permanently posted on the discharger's bulletin board advising employees of who to call in case of an accidental discharge in violation of rules and regulations.

(1976 Code § 8-4.521; Amended by Ord. 720 § 1; Ord. 637 § 2)

Users regulated under the pretreatment program shall refer to Article III of this chapter, Discharge Regulations, for information on inappropriate discharges to the city's wastewater collection system.

(1976 Code § 8-4.522; Amended by Ord. 720 § 1; Ord. 637 § 2)

Where pretreatment facilities are required for any waters or wastes, they shall be maintained in satisfactory and effective operation by the owner at his/her expense.

(1976 Code § 8-4.523; Amended by Ord. 720 § 1; Ord. 637 § 2)

Any direct or indirect connection or entry point for wastes from the discharger's plumbing or drainage system that may cause or has the potential to cause POTW upset, pass-through or interference shall be eliminated. Where such action is impractical or unreasonable, as determined by the superintendent, the user shall establish procedures acceptable to the superintendent to prevent the discharge of such wastes in violation of this chapter.

(1976 Code § 8-4.524; Amended by Ord. 720 § 1; Ord. 637 § 2)

Users must comply with all city, state and federal pollution prevention program requirements. Dischargers may be required to develop and implement a pollution prevention program that includes but is not limited to:

A. A determination of which pollutants are currently a problem or may potentially be a problem in the future to the POTW or the environment as a whole;

B. Determining which pollutants of concern to focus on and how to effectively address their reduction through source reduction and recycling activities.

(1976 Code § 8-4.525; Amended by Ord. 720 § 1; Ord. 637 § 2)