Utah Admin. Code R317-8-8 - Pretreatment

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8.1 APPLICABILITY

(1) This section applies to the following:

(a) Pollutants from non-domestic sources covered by Pretreatment Standards which are indirectly discharged, transported by truck or rail, or otherwise introduced into POTWs;

(b) POTWs which receive wastewater from sources subject to National Pretreatment Standards; and

(2) National Pretreatment Standards do not apply to sources which discharge to a sewer which is not connected to a POTW.

8.2 DEFINITIONS. The following definitions pertain to indirect dischargers and POTWs subject to pretreatment standards and the UPDES program.

(1) "Approval Authority" means the Director.

(2) "Approved POTW pretreatment program or Program or POTW Pretreatment Program" means a program administered by a POTW that meets the criteria established in R317-8-8.8 and 8.9 and which has been approved by the Director in accordance with R317-8-8.10.

(3) "Best Management Practices or BMPs" means schedules of activities, prohibitions of practices, maintenance procedures and other management practices to implement the prohibitions listed in R317-8-8.5(1) and (3). BMPs also include treatment requirements, operating procedures and practices to control plant site runoff, spillage or leaks, sludge or waste disposal or drainage from raw materials storage.

(4) "Control Authority" means the POTW if the POTW's submission for its pretreatment program has been approved by the Director in accordance with the requirements in R317-8-8.10 or the Director if the submission has not been approved.

(5) "Indirect discharge" or "discharge" means the introduction of pollutants into a POTW from any non-domestic source regulated by the UPDES program.

(6) "Industrial User" or "User" means a source of indirect discharge.

(7) "Interference" means a discharge which, alone or in conjunction with a discharge or discharges from other sources both:

(a) Inhibits or disrupts the POTW, its treatment processes or operations, or its sludge processes, use or disposal; and

(b) Therefore is a cause of a violation of any requirement of the POTW's UPDES permit (including an increase in the magnitude or duration of a violation) or of the prevention of sewage sludge use or disposal in compliance with the following statutory provisions and regulations or permits issued thereunder.

(8) "National Pretreatment Standard, Pretreatment Standard or Standard" means any regulation containing pollutant discharge limits promulgated by EPA in accordance with section 307 (b) and (c) of the CWA, which applies to Industrial Users. This includes prohibitive discharge limits established pursuant to R317-8-8.5.

(9) "New Source" means any building, structure, facility, or installation from which there is or may be a discharge of pollutants, the construction of which commenced after publication of proposed Pretreatment Standards under section 307(c) of the (CWA) which will be applicable to such source, if such standards are thereafter promulgated in accordance with that section. See R317-8-8.3 for provisions applicable to this definition.

(10) "Pass through" means a discharge which exits the POTW into waters of the State in quantities or concentrations which, alone or in conjunction with a discharge or discharges from other sources, is a cause of violation of any requirement of the POTW's UPDES permit (including an increase in the magnitude or duration of violation).

(11) "POTW treatment plant" means that portion of the POTW which is designed to provide treatment, including recycling and reclamation of municipal sewage and industrial waste.

(12) "Pretreatment" means the reduction of the amount of pollutants, the elimination of pollutants or the alteration of the nature of pollutant properties in wastewater prior to or in lieu of discharging or otherwise introducing such pollutants into a POTW. The reduction or alteration may be obtained by physical, chemical or biological processes, process changes or by other means, except as prohibited by 40 CFR 403.6(d). Appropriate pretreatment technology includes control equipment, such as equalization tanks or facilities, for protection against surges or slug loading that might interfere with or otherwise be incompatible with the POTW. However, where wastewater from a regulated process is mixed in an equalization facility with unregulated wastewater or with wastewater from another regulated process, the effluent from the equalization facility must meet an adjusted pretreatment limit calculated in accordance with 40 CFR 403.6(e).

(13) "Pretreatment requirements" means any substantive or procedural requirements related to pretreatment, other than a National Pretreatment Standard, imposed on an Industrial User.

(14) The term "Publicly Owned Treatment Works" or "POTW" means a treatment works which is owned by State or municipality within the State. This definition includes any devices and systems used in the storage, treatment, recycling and reclamation of municipal sewage or industrial wastes of a liquid nature. It also includes sewers, pipes and other conveyances only if they convey wastewater to a POTW Treatment Plant. The term also means the municipality which has jurisdiction over the Indirect Discharges to and the discharges from such a treatment works.

(15) "Significant Industrial User"

(a) Except as provided in R317-8-8.2(16)(b) and (c), the term Significant Industrial User means:

1. All Industrial Users subject to Categorical Pretreatment Standards under 40 CFR 403.6 and 40 CFR Parts 405 through 471; and

2. Any other Industrial User that discharges an average of 25,000 gallons per day or more of process wastewater to the POTW (excluding sanitary, noncontact cooling and boiler blowdown wastewater); contributes a process wastestream which makes up 5 percent or more of the average dry weather hydraulic or organic capacity of the POTW treatment plant; or designated as such by the Control Authority on the basis that the Industrial User has a reasonable potential for adversely affecting the POTW's operation or for violating any Pretreatment Standard or requirement.

(b) The Control Authority may determine that an Industrial User subject to Categorical Pretreatment Standards under 40 CFR 403.6 and 40 CFR chapter I, subchapter N is a Non-Significant Categorical Industrial User rather than a Significant Industrial User on a finding that the Industrial User never discharges more than 100 gallons per day (gpd) of total categorical wastewater (excluding sanitary, non-contact cooling and boiler blowdown wastewater, unless specifically included in the Pretreatment Standard) and the following conditions are met:

1. The Industrial User, prior to the Control Authority's finding, has consistently complied with all applicable Categorical Pretreatment Standards and Requirements;

2. The Industrial User annually submits the certification statement required in R317-8-8.11(14) together with any additional information necessary to support the certification statement; and

3. The Industrial User never discharges any untreated concentrated wastewater.

(c) Upon a finding that an Industrial User meeting the criteria in R317-8-8.2(15)(a) 2. of this section has no reasonable potential for adversely affecting the POTW's operation or for violating any Pretreatment Standards or requirement, the Control Authority may at any time, on its own initiative or in response to a petition received from an Industrial User or POTW, and in accordance with R317-8-8.8(6)(b) 12. , determine that such Industrial User is not a Significant Industrial User.

(16) "Submission" means

(a) a request by a POTW for approval of a pretreatment program to the Director or

(b) a request by a POTW for authority to revise the discharge limits in Categorical Pretreatment Standards to reflect POTW pollutant removals.

8.3 PROVISIONS APPLICABLE TO DEFINITIONS. The following provisions are applicable to the definition of "New Source" provided that:

(1) The building, structure, facility or installation is constructed at a site at which no other source is located, or

(2) The building, structure, facility or installation totally replaces the process or production equipment that causes the discharge of pollutants at an existing source, or

(3) The production or wastewater generating process of the building, structure, facility or installation are substantially independent of an existing source at the same site. In determining whether these are substantially independent, factors such as the extent to which the new facility is integrated with the existing plant, and the extent to which the new facility is engaged in the same general type of activity as the existing source should be considered.

(4) Construction on a site at which an existing source is located results in a modification rather than a new source if the construction does not create a new building, structure, facility or installation meeting the criteria of R317-8-8.3(2) or (3) but otherwise alters, replaces, or adds to existing process or production equipment.

(5) construction of a new source as defined has commenced if the owner or operator has:

(a) Begun, or caused to begin as part of a continuous on-site construction program:

1. Any placement, assembly, or installation of facilities or equipment: or

2. Significant site preparation work including clearing, excavation, or removal of existing buildings, structures, or facilities which is necessary for the placement, assembly or installation of new source facilities or equipment: or

3. Entered into a binding contractual obligation for the purchase of facilities or equipment which are intended to be used in its operation within a reasonable time. Options to purchase or contracts which can be terminated or modified without substantial loss, and contracts for feasibility, engineering, and design studies do not constitute a contractual obligation.

8.4 LOCAL LAW. Nothing in this rule is intended to affect any pretreatment requirements, including any standards or prohibitions established by local law as long as the local requirements are not less stringent than any set forth in national pretreatment standards, or any other requirements or prohibitions established by the Director.

8.5 NATIONAL PRETREATMENT STANDARDS: Prohibited Discharges

(1) General Prohibitions. Pollutants introduced into POTWs by a non-domestic source shall not pass through the POTW or interfere with the operation or performance of the works. These general prohibitions and the specific prohibitions in R317-8-8.5(3) apply to all non-domestic sources introducing pollutants into a POTW whether or not the source is subject to other National Pretreatment Standards or any national, State or local pretreatment requirements.

(2) Affirmative Defenses. A User shall have an affirmative defense in any action brought against it alleging a violation of the general prohibitions established in R317-8-8.5(1) and the specific prohibitions in R317-8-8.5(3)(c),(d),(e), and (g) where the User can demonstrate that:

(a) It did not know or have reason to know that its discharge, alone or in conjunction with a discharge or discharges from other sources, would cause pass through or interference; and

(b)

1. A local limit designed to prevent pass through and/or interference, as the case may be, was developed in accordance with R317-8-8.5(4) for each pollutant in the User's discharge that caused pass through or interference, and the User was in compliance with each such local limit directly prior to and during the pass through or interference; or

2. If a local limit designed to prevent pass through and/or interference, as the case may be, has not been developed in accordance with R317-8-8.5(4) for the pollutant(s) that caused the pass through or interference, the User's discharge directly prior to and during the pass through or interference did not change substantially in nature or constituents from the User's prior discharge activity when the POTW was regularly in compliance with the POTW's UPDES permit requirements and, in the case of interference, applicable requirements for sewage sludge use or disposal.

(3) Specific Prohibitions. In addition, the following pollutants shall not be introduced into a POTW:

(a) Pollutants which create a fire or explosion hazard in the POTW, including, but not limited to, wastestreams with a closed cup flashpoint of less than 140 degrees Fahrenheit or 60 degrees Centigrade using the test methods specified in R315-2-1.

(b) Pollutants which will cause corrosive structural damage to the POTW, but in no case discharges with pH lower than 5.0, unless the works is specifically designed to accommodate such discharges;

(c) Solid or viscous pollutants in amounts which will cause obstruction to the flow in the POTW resulting in interference;

(d) Any pollutant, including oxygen demanding pollutants (BOD, etc.) released in a discharge at a flow rate and/or pollutant concentration which will cause interference with the POTW:

(e) Heat in amounts which will inhibit biological activity in the POTW resulting in interference, but in no case heat in such quantities that the temperature at the POTW treatment plant exceeds 40 degrees C (104 degrees F) unless the Director, upon request of the POTW, approves alternate temperature limits.

(f) Petroleum oil, nonbiodegradable cutting oil, or products of mineral oil origin in amounts that will cause interference or pass through;

(g) Pollutants which result in the presence of toxic gases, vapors, or fumes within the POTW in a quantity that may cause acute worker health and safety problems; and

(h) Any trucked or hauled pollutants, except at discharge points designated by the POTW.

(4) When specific limits must be developed by POTW.

(a) POTWs developing POTW pretreatment programs shall develop and enforce specific limits to implement the prohibitions listed in R317-8-8.5(1) and R317-8-8.5(3). Each POTW with an approved pretreatment program shall continue to develop these limits as necessary and effectively enforce such limits;

(b) All other POTWs shall, in cases where pollutants contributed by User(s) result in interference or pass-through, and such violation is likely to recur, develop and enforce specific effluent limits for Industrial User(s), and all other users, as appropriate, which, together with appropriate changes in the POTW treatment plant's facilities or operation, are necessary to ensure renewed and continued compliance with the POTW's UPDES permit or sludge use or disposal practices;

(c) Specific effluent limits shall not be developed and enforced without individual notice to persons or groups who have requested such notice and an opportunity to respond.

(5) Local Limits. Where specific prohibitions or limits on pollutants or pollutant parameters are developed by a POTW in accordance with R317-8-8.5(4), such limits shall be deemed pretreatment standards for purposes of 19-5-108 of the Utah Water Quality Act.

(6) State enforcement actions. If, within 30 days after notice of an interference or pass through violation has been sent by the Director to the POTW, and to persons or groups who have requested such notice, the POTW fails to commence appropriate enforcement action to correct the violation, the Director may take appropriate enforcement action.

(7) POTWs may develop Best Management Practices (BMPs) to implement R317-8-8.5(4)(a) and (b). Such BMPs shall be considered local limits and Pretreatment Standards for the purposes of this part and section 307(d) of the CWA

8.6 NATIONAL PRETREATMENT STANDARDS: Categorical Standards

40 CFR 403.6 is incorporated by reference as indicated in R317-8-1.10(4)

(1) In addition to the general prohibitions in R317-8-8.5(1), all indirect dischargers shall comply with national pretreatment standards in 40 CFR Chapter I, Subchapter N. Compliance shall be required within the time specified in the appropriate subpart of Subchapter N.

(2) Industrial Users may request the Director to provide written certification on whether an Industrial User falls within a particular subcategory. The Director will act upon that request in accordance with the procedures in 40 CFR 403.6.

(3) Limitations for Industrial Users will be imposed in accordance with 40 CFR 403.6(c) - (e).

8.7 REMOVAL CREDITS. POTWs may revise pollutant discharge limits specified in Categorical Pretreatment Standards to reflect removal of pollutants by the POTW. Revisions must be made in accordance with the provisions of 40 CFR 403.7.

8.8 POTW PRETREATMENT PROGRAMS: Development by POTW

(1) POTW required to develop a pretreatment program. Any POTW, or combination of POTWs operated by the same authority, with a total design flow greater than 5 million gallons per day (mgd) and receiving from Industrial Users pollutants which pass through or interfere with the operation of the POTW or are otherwise subject to pretreatment standards shall be required to establish a POTW pretreatment program unless the Director exercises the option to assume local responsibility as provided for in R317-8-8.8(6)(b) 13. The Director may require that a POTW with a design flow of 5 mgd or less develop a POTW pretreatment program if it is found that the nature or volume of the industrial influent, treatment process upsets, violations of POTW effluent limitations, contamination of municipal sludge, or other circumstances so warrant in order to prevent interference or pass through.

(2) Deadline for Program Approval. POTWs identified as being required to develop a POTW pretreatment program under R317-8-8.8(1) shall develop and submit such a program for approval as soon as possible, but in no case later than one year after written notification from the Director of such identification. The POTW pretreatment program shall meet the criteria set forth in R317-8-8.8(6) and shall be administered by the POTW to ensure compliance by Industrial Users with applicable pretreatment standards and requirements.

(3) Incorporation of Approved Programs in Permits. A POTW may develop an approvable POTW pretreatment program any time before the time limit set forth in R317-8-8.8(2). The POTW's UPDES permit will be modified under R317-8-5.6(3)(g) to incorporate the approved program conditions as enforceable conditions of the permit.

(4) Incorporation of Compliance Schedules in Permits. If the POTW does not have an approved pretreatment program at the time the POTWs existing permit is reissued or modified, the reissued or modified permit will contain the shortest reasonable compliance schedule, not to exceed three years, for the approval of the legal authority, procedures and funding required by paragraph (6) of this subsection.

(5) Cause for Reissuance or Modification of Permits. The Director may modify or revoke and reissue a POTW's permit in order to:

(a) Put the POTW on a compliance schedule for the development of a POTW pretreatment program where the addition of pollutants into a POTW by an Industrial User or combination of Industrial Users presents a substantial hazard to the functioning of the treatment works, quality of the receiving waters, human health, or the environment;

(b) Coordinate the issuance of a CWA Section 201 construction grant with the incorporation into a permit of a compliance schedule for POTW pretreatment program;

(d) Incorporate a compliance schedule for the development of a POTW pretreatment program in the POTW permit.

(e) Incorporate a modification of the permit approved under R317-8-5.6; or

(f) Incorporate the removal credits established under R317-8-8.7.

(6) Pretreatment Program Requirements: Development and Implementation by POTW. A POTW pretreatment program must be based on the following legal authority and include the following procedures. These authorities and procedures shall at all times be fully and effectively exercised and implemented.

(a) Legal authority. The POTW shall operate pursuant to legal authority enforceable in Federal, State or local courts which authorizes or enables the POTW to apply and to enforce the requirements of this section. The authority may be contained in a statute, ordinance, or series of contracts or joint powers agreements which the POTW is authorized to enact, enter into or implement, and which are authorized by State law. At a minimum, this legal authority shall enable the POTW to:

1. Deny or condition new or increased contributions of pollutants, or changes in the nature of pollutants, to the POTW by Industrial Users where such contributions do not meet applicable pretreatment standards and requirements or where such contributions would cause the POTW to violate its UPDES permit;

2. Require compliance with applicable pretreatment standards and requirements by Industrial Users;

3. Control, through permit, order or similar means, the contribution to the POTW by each Industrial User to ensure compliance with applicable pretreatment standards and requirements. In the case of Industrial Users identified as significant under R317-8-8.2(15), this control shall be achieved through permits or equivalent individual control mechanisms issued to each such User. Such control mechanisms must be enforceable and contain, at a minimum, the following conditions:

a. At the discretion of the POTW:

i. This control may include use of general control mechanisms if the following conditions are met. All of the facilities to be covered must:

A. Involve the same or substantially similar types of operations;

B. Discharge the same types of wastes;

C. Require the same effluent limitations;

D. Require the same or similar monitoring; and

E. In the opinion of the POTW, are more appropriately controlled under a general control mechanism than under individual control mechanisms.

ii. To be covered by the general control mechanism, the Significant Industrial User must file a written request for coverage that identifies its contact information, production processes, the types of wastes generated, the location for monitoring all wastes covered by the general control mechanism, any requests in accordance with R317-8-8.11(4)(b) for a monitoring waiver for a pollutant neither present nor expected to be present in the discharge, and any other information the POTW deems appropriate. A monitoring waiver for a pollutant neither present nor expected to be present in the discharge is not effective in the general control mechanism until after the POTW has provided written notice to the Significant Industrial User that such a waiver request has been granted in accordance with R317-8-8.11(4)(b). The POTW must retain a copy of the general control mechanism, documentation to support the POTW's determination that a specific Significant Industrial User meets the criteria in R317-8-8.8(6)(a) 3.a.i.A. through E., and a copy of the User's written request for coverage for 3 years after the expiration of the general control mechanism. A POTW may not control a Significant Industrial User through a general control mechanism where the facility is subject to production-based Categorical Pretreatment Standards or Categorical Pretreatment Standards expressed as mass of pollutant discharged per day or for Industrial Users whose limits are based on the combined wastestream formula or Net/Gross calculations ( 40 CFR 403.6(e) and 40 CFR 403.15 ).

b. Both individual and general control mechanisms must be enforceable and contain, at a minimum, the following conditions:

i. Statement of duration (in no case more than five years);

ii. Statement of non-transferability without, at a minimum, prior notification to the POTW and provision of a copy of the existing control mechanism to the new owner or operator;

iii. Effluent limits, including Best Management Practices, based on applicable general pretreatment standards, Categorical Pretreatment Standards, local limits and State and local law;

iv. Self-monitoring, sampling, reporting, notification and record keeping requirements, including identification of the pollutants to be monitored (including the process for seeking a waiver for a pollutant neither present nor expected to be present in the discharge in accordance with R317-8-8.11(4)(b), or a specific waived pollutant in the case of an individual control mechanism), sampling location, sampling frequency, and sample type, based on the applicable general pretreatment standards, Categorical Pretreatment Standards, local limits, and State and local law;

v. Statement of applicable civil and criminal penalties for violation of pretreatment standards and requirements, and any applicable compliance schedule. Such schedules may not extend the compliance date beyond applicable federal deadlines; and

vi. Requirements to control Slug Discharges, if determined by the POTW to be necessary.

4. Require the development of a compliance schedule by each Industrial User for the installation of technology required to meet applicable pretreatment standards and requirements; including but not limited to the reports required in R317-8-8.11 of this section;

5. Require the submission of all notices and self-monitoring reports from Industrial Users as are necessary to assess and assure compliance by Industrial Users with pretreatment standards and requirements;

6. Carry out all inspection, surveillance and monitoring procedures necessary to determine, independent of information supplied by Industrial Users, compliance or noncompliance with applicable pretreatment standards and requirements by Industrial Users. Representatives of the POTW shall be authorized to enter any premises of any Industrial User in which a discharge source or treatment system is located or in which records are required to be kept under R317-8-8.11 of this section to assure compliance with pretreatment standards. Such authority shall be at least as extensive as the authority provided under Section 19-5-106(4) of the Utah Water Quality Act.

7. Obtain remedies for noncompliance by any Industrial User with any pretreatment standard and requirement. A POTW shall be able to seek injunctive relief for noncompliance and shall have authority to seek or assess civil or criminal penalties in at least the amount of $1,000 a day for each violation of pretreatment standards and requirements by Industrial Users. POTWs whose approved pretreatment programs require modification to conform to the requirements of this paragraph shall submit a request for approval of a program modification in accordance with Section R317-8-8.16 by November 16, 1989.

8. Pretreatment requirements enforced through the remedies set forth in R317-8-8.8(6)(a) 7. shall include, but not be limited to, the duty to allow or carry out inspection entry or monitoring activities; any rules, regulations or orders issued by the POTW; any requirements set forth in individual control mechanisms issued by the POTW; or any reporting requirements imposed by the POTW or R317-8-8. The POTW shall have authority and procedures (after informal notice to the discharger) immediately and effectively to halt or prevent any discharge of pollutants to the POTW which reasonably appears to present an imminent danger to the health or welfare of persons. The POTW shall also have authority and procedures (which shall include notice to the affected Industrial User and opportunity to respond) to halt or prevent any discharge to the POTW which presents or may present a danger to the environment or which threatens to interfere with the operation of the POTW. The Director shall have authority to seek judicial relief for noncompliance by Industrial Users when the POTW has acted to seek such relief but has sought a penalty which the Director finds to be insufficient. The procedures for notice to dischargers where the POTW is seeking ex parte temporary judicial injunctive relief will be governed by applicable State or Federal law and not by this provision, and will comply with the confidentiality requirements set forth in R317-8-3.3.

(b) Procedures. The POTW shall develop and implement procedures to ensure compliance with the requirements of a pretreatment program. At a minimum, these procedures shall enable the POTW to:

1. Identify and locate all possible Industrial Users which might be subject to the POTW pretreatment program. Any compilation, index or inventory of Industrial Users made under this paragraph shall be made available to the Director upon request;

2. Identify the character and volume of pollutants contributed to the POTW by the Industrial User identified under R317-8-8.8(6)(b) 1. This information shall be made available to the Director upon request;

3. Notify Industrial Users identified under R317-8-8.8(6)(b) 1. of applicable pretreatment standards and any other applicable requirements. Within 30 days of approval of a list of significant industrial users, notify each Significant Industrial User of its status as such and of all requirements applicable to it as a result of such status.

4. Receive and analyze self-monitoring reports and other notices submitted by Industrial Users in accordance with the requirements of R317-8-8.11.

5. Randomly sample and analyze the effluent from Industrial Users and conduct surveillance and inspection activities in order to identify, independent of information supplied by Industrial Users, occasional and continuing noncompliance with pretreatment standards. Inspect and sample the effluent from each Significant Industrial User at least once a year except as otherwise specified below:

a. Where the POTW has authorized the Industrial User subject to a Categorical Pretreatment Standard to forego sampling of a pollutant regulated by a Categorical Pretreatment Standard in accordance with R317-8-8.11(4)(c), the POTW must sample for the waived pollutant(s) at least once during the term of the Categorical Industrial User's control mechanism. In the event that the POTW subsequently determines that a waived pollutant is present or is expected to be present in the Industrial User's wastewater based on changes that occur in the User's operations, the POTW must immediately begin at least annual effluent monitoring of the User's Discharge and inspection.

b. Where the POTW has determined that an Industrial User meets the criteria for classification as a Non-Significant Categorical Industrial User, the POTW must evaluate, at least once per year, whether an Industrial User continues to meet the criteria in R317-8-8.2(15)(b),

c. In the case of Industrial Users subject to reduced reporting requirements under R317-8-8.11(4)(c), the POTW must randomly sample and analyze the effluent from Industrial Users and conduct inspections at least once every two years. If the Industrial User no longer meets the conditions for reduced reporting in R317-8-8.11(4)(c), the POTW must immediately begin sampling and inspecting the Industrial User at least once a year.

6. Evaluate, at least once every two years, whether each such Significant Industrial User needs a plan to control slug discharges. For purposes of this subsection, a slug discharge is any discharge of a non-routine, episodic nature, including but not limited to an accidental spill or a non-customary batch discharge, which has a reasonable potential to cause interference or pass through, or in any other way violate the POTW's regulations, local limits or Permit conditions. The results of such activities shall be available to the Director upon request. Significant Industrial Users are required to notify the POTW immediately of any changes at its facility affecting potential for a slug discharge. Significant Industrial Users must be evaluated within one year of being designated a Significant Industrial User. If the POTW decides that a slug control plan is needed, the plan shall contain, at a minimum, the following elements:

a. Description of discharge practices, including non-routine batch discharges;

b. Description of stored chemicals;

c. Procedures for immediately notifying the POTW of slug discharges, including any discharge that would violate a prohibition under R317-8-8.5 with procedures for follow-up written notification within five days;

d. If necessary, procedures to prevent adverse impact from accidental spills, including inspection and maintenance of storage areas, handling and transfer of materials, loading and unloading operations, control of plant site run-off, worker training, building of containment structures or equipment, measures for containing toxic organic pollutants (including solvents), and/or measures and equipment for emergency response. The results of these activities shall be made available to the Director upon request;

7. Investigate instances of noncompliance with pretreatment standards and requirements, as indicated in the reports and notices required by R317-8-8.11, or indicated by analysis, inspection, and surveillance activities. Sample taking and analysis and the collection of other information shall be performed with sufficient care to produce evidence admissible in enforcement proceedings or in judicial actions;

8. Comply with all applicable public participation requirements of State law and rules. These procedures shall include provision for at least annually providing public notification, in the largest daily newspaper published in the municipality in which the POTW is located, of Industrial Users which, at anytime during the previous 12 months, were in significant noncompliance with applicable pretreatment requirements. For the purposes of this provision, an Industrial User is in significant noncompliance if its violation meets one or more of the following criteria:

a. Chronic violations of wastewater discharge limits, defined here as those in which sixty-six percent or more of all of the measurements taken during a six month period exceed (by any magnitude) a numeric Pretreatment Standard or Requirement including instantaneous limits, for the same pollutant parameter;

b. Technical Review Criteria (TRC) violations, defined here as those in which thirty-three percent or more of all of the measurements for each pollutant parameter taken during a six-month period equal or exceed the product of the numeric Pretreatment Standard or Requirement including instantaneous limit multiplied by the applicable TRC. TRC = 1.4 for BOD, TSS, fats, oil and grease, and 1.2 for all other pollutants except pH;

c. Any other violation of a pretreatment effluent limit (daily maximum or longer-term average) that the Control Authority determines has caused, alone or in combination with other discharges, interference or pass through (including endangering the health of POTW personnel or the general public);

d. Any discharge of a pollutant that has caused imminent endangerment to human health, welfare or to the environment or has resulted in the POTW's exercise of its emergency authority under R317-8-8.8(6)(a) 8. to halt or prevent such a discharge:

e. Failure to meet, within 90 days after the schedule date, a compliance schedule milestone contained in a local control mechanism or enforcement order for starting construction, completing construction, or attaining final compliance:

f. Failure to provide within 45 days after the due date, required reports such as baseline monitoring reports, 90-day compliance reports, periodic self-monitoring reports, and reports on compliance with compliance schedules;

g. Failure to accurately report noncompliance; and

h. Any other violation or group of violations, which may include a violation of Best Management Practices, which the Control Authority determines will adversely affect the operation or implementation of the local pretreatment program.

9. Funding. The POTW shall have sufficient resources and qualified personnel to carry out all required authorities and procedures. In some limited circumstances, funding and personnel may be delayed by the Director when the POTW has adequate legal authority and procedures to carry out the pretreatment program requirements and a limited aspect of the program does not need to be implemented immediately.

10. Local Limits. The POTW shall develop local limits as required in section R317-8-8.5(4)(a) or demonstrate that they are not necessary.

11. Enforcement Response Plan. The POTW shall develop and implement an enforcement response plan. This plan shall contain detailed procedures indicating how the POTW will investigate and respond to instances of industrial user noncompliance. The plan shall, at a minimum;

a. Describe how the POTW will investigate instances of noncompliance;

b. Describe the types of escalating enforcement responses the POTW will take in response to all anticipated types of industrial user violations and the time periods within which responses will take place;

c. Identify (by title) the official(s) responsible for each type of response;

d. Adequately reflect the POTW's primary responsibility to enforce all applicable pretreatment requirements and standards, as detailed in R317-8-8.8(6)(a) and (b).

12. List of Industrial Users. The POTW shall prepare a list of its Industrial Users meeting the criteria of R317-8-8.2(15)(a). The list shall identify the criteria in R317-8-8.2(15)(a) applicable to each Industrial User and, for Industrial Users meeting the criteria in R317-8-8.2(15)(a), shall also indicate whether the POTW has made a determination pursuant to R317-8-8.2(15)(b) that such Industrial User should not be considered a Significant Industrial User. This list and any subsequent modifications thereto, shall be submitted to the Director as a nonsubstantial program modification. Discretionary designations or de-designations by the Control Authority shall be deemed to be approved by the Director 90 days after submission of the list or modifications thereto, unless the Director determines that a modification is in fact a substantial modification.

13. State Program in Lieu of POTW Program. Notwithstanding the provision of R317-8-8.8(1), the State may assume responsibility for implementing the POTW pretreatment program requirements set forth in R317-8-8.8(6) in lieu of requiring the POTW to develop a pretreatment program. However, this does not preclude POTW's from independently developing pretreatment programs.

(7) A POTW that chooses to receive electronic documents must satisfy the requirements of 40 CFR Part 3 - (Electronic reporting).

8.9 POTW PRETREATMENT PROGRAMS AND/OR AUTHORIZATION TO REVISE PRETREATMENT STANDARDS: SUBMISSION FOR APPROVAL

(1) Who Approves the Program. A POTW requesting approval of a POTW pretreatment program shall develop a program description which includes the information set forth in R317-8-8.9(2)(a),(b),(c) and (d). This description shall be submitted to the Director, who will make a determination on the request for program approval in accordance with the procedure described in R317-8-8.10.

(2) Contents of POTW Program Submission.

(a) The program submission shall contain a statement from the city attorney or a city official acting in comparable capacity or the attorney for those POTWs which have independent legal counsel, that the POTW has authority adequate to carry out the programs described in R317-8-8.8. This statement shall:

1. Identify the provision of the legal authority under R317-8-8.8(6)(a) which provides the basis for each procedure under R317-8-8.8(6)(b);

2. Identify the manner in which the POTW will implement the program requirements set forth in R317-8-8.8 including the means by which pretreatment standards will be applied to individual Industrial Users (e.g., by order, permit, ordinance, etc.); and

3. Identify how the POTW intends to ensure compliance with pretreatment standards and requirements, and to enforce them in the event of noncompliance by Industrial Users.

(b) The program submission shall contain a copy of any statutes, ordinances, regulations, agreements, or other authorities relied upon by the POTW for its administration of the program. This submission shall include a statement reflecting the endorsement or approval of the local boards or bodies responsible for supervising and/or funding the POTW pretreatment program if approved.

(c) The program submission shall contain a brief description, including organization charts, of the POTW organization which will administer the pretreatment program. If more than one agency is responsible for administration of the program the responsible agencies should be identified, their respective responsibilities delineated and their procedures for coordination set forth.

(d) The program submission shall contain a description of the funding levels and full and part time manpower available to implement the program.

(3) Conditional POTW Program Approval. The POTW may request conditional approval of the pretreatment program pending the acquisition of funding and personnel for certain elements of the program. The request for conditional approval shall meet the requirements of R317-8-8.9(2) of this subsection except that the requirements of this section may be relaxed if the submission demonstrates that:

(a) A limited aspect of the program does not need to be implemented immediately;

(b) The POTW had adequate legal authority and procedures to carry out those aspects of the program which will not be implemented immediately; and

(c) Funding and personnel for the program aspects to be implemented at a later date will be available when needed. The POTW shall describe in the submission the mechanism by which this funding will be acquired. Upon receipt of a request for conditional approval, the Director will establish a fixed date for the acquisition of the needed funding and personnel. If funding is not acquired by this date the conditional approval of the POTW pretreatment program and any removal allowances granted to the POTW may be modified or withdrawn.

(4) Content of Removal Credit Submission. The request for authority to revise Categorical Pretreatment Standards shall contain the information required in 40 CFR 403.7(d).

(5) Approval Authority Action. A POTW requesting POTW pretreatment program approval shall submit to the Director three copies of the submission described in R317-8-8.9(2), and if appropriate R317-8-8.9(4). Within 60 days after receiving a submission, the Director shall make a preliminary determination of whether the submission meets the requirements of this section. Upon a preliminary determination that the submission meets the requirements of this section, the Director will:

(a) Notify the POTW that the submission has been received and is under review; and

(b) Commence the public notice and evaluation activities set forth in R317-8-8.10.

(6) Notification Where Submission is Defective. If, after review of the submission as provided for in paragraph (5) above, the Director determines that the submission does not comply with the requirements of R317-8-8.9(2), (3) and, if appropriate, (4), the Director will provide notice in writing to the applying POTW and each person who has requested individual notice. This notification will identify any defects in the submission and advise the POTW and each person who has requested individual notice of the means by which the POTW can comply with the applicable requirements of R317-8-8.9(2), (3) and, if appropriate, (4).

(7) Consistency With Water Quality Management Plans.

(a) In order to be approved, the POTW pretreatment program shall be consistent with any approved water quality management plan, when the plan includes management agency designations and addresses pretreatment in a manner consistent with R317-8-8. In order to assure such consistency, the Director will solicit the review and comment of the appropriate water quality planning agency during the public comment period provided for in R317-8-8.10(2)(a) 2. prior to approval or disapproval of the program.

(b) Where no plan has been approved or when a plan has been approved but lacks management agency designations and/or does not address pretreatment in a manner consistent with this section, the Director will solicit the review and comment of the appropriate 208 planning agency.

8.10 APPROVAL PROCEDURES FOR POTW PRETREATMENT PROGRAMS AND POTW GRANTING OF REMOVAL CREDITS. The following procedure will be adopted in approving or denying requests for approval of POTW pretreatment programs and applications for removal credit authorization.

(1) Deadline for Review of Submission. The Director will have 90 days from the date of public notice of a submission complying with the requirements of R317-8-8.9(2), and where removal credit authorization is sought with the requirements of 40 CFR 403.7(e) and R317-8-8.9(4) to review the submission. The Director shall review the submission to determine compliance with the requirements of R317-8-8.8(2) and (6), and where removal credit is sought, with R317-8-8.7. The Director may have up to an additional 90 days to complete the evaluation of the submission if the public comment period provided for in R317-8-8.10(2)(a) 2. is extended beyond thirty (30) days or if a public hearing is held as provided for in R317-8-8.10(2)(b). In no event, however, will the time for evaluation of the submission exceed a total of 180 days from the date of public notice of a submission meeting the requirements of R317-8-8.9(2) and, in the case of a removal credit application 403.7(e) and R317-8-8.9(2).

(2) Public Notice and Opportunity for Public Hearing. Upon receipt of a submission the Director will commence his review. Within 20 days after making a determination that a submission meets the requirements of R317-8-8.9(2), and when a removal credit authorization is sought under 40 CFR 403.7(d) and R317-8-8.7 the Director will:

(a) Issue a public notice of request for approval of the submission:

1. This public notice will be circulated in a manner designed to inform interested and potentially interested persons of the submission. Procedures for the circulation of public notice will include: mailing notices of the request for approval of the submission to designated CWA section 208 planning agencies, federal and state fish, shellfish, and wildlife resource agencies (unless such agencies have asked not to be sent the notices); and to any other person or group who has requested individual notice, including those on appropriate mailing lists; and publication of a notice of request for approval of the submission in the largest daily newspaper within the jurisdiction served by the POTW.

2. The public notice will provide a period of not less than 30 days following the date of the public notice during which time interested persons may submit their written views on the submission;

3. All written comments submitted during the 30-day comment period will be retained by the Director and considered in the decision on whether or not to approve the submission. The period for comment may be extended at the discretion of the Director.

(b) The Director will also provide an opportunity for the applicant, any affected State, any interested state or federal agency, person or group of persons to request a public hearing with respect to the submission.

1. This request for public hearing shall be filed within the thirty (30) day or extended comment period described in R317-8-8.10(2)(a) 2. of this subsection and will indicate the interest of the person filing such a request and the reasons why a hearing is warranted.

2. The Director will hold a public hearing if the POTW so requests. In addition, a hearing will be held if there is a significant public interest in issues relating to whether or not the submission should be approved. Instances of doubt will be resolved in favor of holding the hearing.

3. Public notice of a public hearing to consider a submission and sufficient to inform interested parties of the nature of the hearing and right to participate will be published in the same newspaper as the notice of the original request. In addition, notice of the hearing will be sent to those persons requesting individual notice.

(3) Director Decision. At the end of the thirty (30) day or extended comment period and within the ninety (90) day or extended period provided for in R317-8-8.10(1) of this section, the Director will approve or deny the submission based upon the evaluation in R317-8-8.10(1) and taking into consideration comments submitted during the comment period and the record of the public hearing, the Director will so notify the POTW and each person who has requested individual notice. If the Approval Authority makes a determination to deny the request, the Approval Authority shall so notify the POTW and each person who has requested individual notice. This notification will include suggested modification and the Director may allow the requestor additional time to bring the submission into compliance with applicable requirements.

(4) EPA Objection to Director's Decision. No POTW pretreatment program or authorization to grant removal allowances will be approved by the Director if following the thirty (30)-day or extended evaluation period provided for in R317-8-8.10(2)(a) 2. and any public hearing held pursuant to this section, the Regional Administrator sets forth in writing objections to the approval of such submission and the reasons for such objections. A copy of the Regional Administrator's objections will be provided to the applicant and to each person who has requested individual notice. The Regional Administrator shall provide an opportunity for written comments and many convene a public hearing on his or her objections. Unless retracted, the Regional Administrator's objections shall constitute a final ruling to deny approval of a POTW pretreatment program or authorization to grant removal allowances 90 days after the date the objections are issued.

(5) Notice of Decision. The Director will notify those persons who submitted comments and participated in the public hearing, if held, of the approval or disapproval of the submission. In addition, the Director will cause to be published a notice of approval or disapproval in the same newspapers as the original notice of request was published. The Director will identify any authorization to modify Categorical Pretreatment Standards which the POTW may make for removal of pollutants subject to the pretreatment standards.

(6) Public Access to Submission. The Director will ensure that the submission and any comments on the submission are available to the public for inspection and copying.

8.11 REPORTING REQUIREMENTS FOR POTWS AND INDUSTRIAL USERS

(1) Reporting Requirement for Industrial Users Upon Effective Date of Categorical Pretreatment Standards Baseline Report. Within 180 days after the effective date of a Categorical Pretreatment Standards or 180 days after the final administrative decision made upon a category determination submission under R317-8-8.6, whichever is later, existing Industrial Users subject to such Categorical Pretreatment Standards and currently discharging to or scheduled to discharge to a POTW shall be required to submit to the Control Authority a report which contains the information listed in paragraphs (a) through (g) of this Section. Where reports containing this information have already been submitted to the Director, the Industrial User will not be required to submit this information again. At least 90 days prior to commencement of discharge, new sources and sources that become Industrial Users subsequent to promulgation of an applicable Categorical Standards, shall be required to submit to the Control Authority a report which contains the information listed in R317-8-8.11(1)(a)through (e). New sources shall also be required to include in this report information on the method of pretreatment the source intends to use to meet applicable pretreatment standards. New Sources shall give estimates of the information requested in R317-8-8.11(1)(d) and (e).

(a) Identifying Information. The User shall submit the name and address of the facility, including the name of the operator and owners.

(b) Permits. The User shall submit a list of any environmental control permits held by or for the facility.

(c) Description of Operations. The User shall submit a brief description of the nature, average rate of production and Standard Industrial Classification of the operation carried out by the Industrial User. This description should include a schematic process diagram which indicates points of discharge to the POTW from the regulated process.

(d) Flow measurement. The User shall submit information showing the measured average daily and maximum daily flow, in gallons per day, to the POTW from each of the following: regulated process streams and other streams as necessary to allow use of the combined wastestream formula (see Section 40 CFR 403.6(e) ). The Control Authority may allow for verifiable estimates of these flows where justified by cost or feasibility considerations.

(e) Measurement of pollutants.

1. The User shall identify the pretreatment standards applicable to each regulated process.

2. The User shall submit the results of sampling and analysis identifying the nature and concentration, or mass, of regulated pollutants in the discharge from each regulated process when required by the standard or the Control Authority. Both daily maximum and average concentration or mass, where required shall be reported. The sample shall be representative of daily operations. In cases where the Standard requires compliance with a Best Management Practice or pollution prevention alternative, the User shall submit documentation as required by the Control Authority or the applicable standards to determine compliance with the Standard;

3. The User shall take a minimum of one representative sample to compile that data necessary to comply with the requirements of R317-8-8.11.

4. Samples shall be taken immediately downstream from pretreatment facilities if such exist or immediately downstream from the regulated process if no pretreatment exists. If other wastewaters are mixed with the regulated wastewater prior to pretreatment the User should measure the flows and concentrations necessary to allow use of the combined wastestream formula in order to evaluate compliance with the pretreatment standards. When an alternate concentration or mass limit has been calculated in accordance with the combined wastestream formula this adjusted limit along with supporting data shall be submitted to the Control Authority.

5. Sampling and analysis shall be performed in accordance with the techniques prescribed in 40 CFR 136 and amendments thereto. When 40 CFR 136 does not contain sampling or analytical techniques for the pollutant in question, or when the Administrator determines that the 40 CFR 136 sampling and analytical techniques are inappropriate for the pollutant in question, sampling and analysis shall be performed by using validated analytical methods or any other applicable sampling and analytical procedures, including procedures suggested by the POTW or other parties, approved by the Administrator.

6. The Control Authority may allow the submission of a baseline report which utilizes only historical data so long as the data provides information sufficient to determine the need for industrial pretreatment measures.

7. The baseline report shall indicate the time, date and place of sampling, and methods of analysis, and shall certify that such sampling and analysis is representative of normal work cycles and expected pollutant discharges to the POTW.

(f) Certification. The User shall submit a statement, reviewed by an authorized representative of the Industrial User 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 for the Industrial User to meet the pretreatment standards and requirements.

(g) Compliance Schedule. If additional pretreatment and/or operation and maintenance are required to meet the pretreatment standards, the Industrial User shall submit the shortest schedule by which the Industrial User will provide such additional pretreatment and/or operation and maintenance. The completion date in this schedule shall not be later than the compliance date established for the applicable pretreatment standard.

1. When the Industrial User's Categorical Pretreatment Standards has been modified by a removal allowance under R317-8-8.7, the combined wastestream formula under R317-8-8.6,or by a fundamentally different factors variance under R317-8-8.15 at the time the User submits the report required by R317-8-8.11(1), the information required by R317-8-8.11(1)(f) and (g) shall pertain to the modified limits.

2. If the Categorical Pretreatment Standards is modified by a removal allowance under R317-8-8.7, the combined wastestream formula under R317-8-8.6, or by a fundamentally different factors variance under 40 CFR 403.13 after the User submits the report required by R317-8-8.11(1), any necessary amendments to the information requested by R317-8-8.11(1)(f) and (g) shall be submitted by the User to the Control Authority within 60 days after the modified limit is approved.

(2) Compliance Schedule for Meeting Categorical Pretreatment Standards. The following conditions shall apply to the schedule required by R317-8-8.11(1)(g):

(a) The schedule shall contain increments of progress 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 Industrial User to meet the applicable Categorical Pretreatment Standards e.g., hiring an engineer, completing preliminary plans, completing final plans, executing contract for major components, commencing construction, completing construction, etc.);

(b) No increment referred to in paragraph (a) of above shall exceed 9 months;

(c) Not later than 14 days following each date in the schedule and the final date for compliance, the Industrial User shall submit a progress report to the Control Authority including, at a minimum, whether or not it complied with the increment of progress to be met on that date and, if not, the date on which it expects to comply with this increment of progress, the reason for delay, and the steps being taken by the Industrial User to return the construction to the schedule established. In no event shall more than 9 months elapse between such progress reports to the Control Authority;

(3) Report on Compliance with Categorical Pretreatment Standard Deadline. Within 90 days following the date for final compliance with applicable Categorical Pretreatment Standards or in the case of a new source following commencement of the introduction of wastewater into the POTW, any Industrial User subject to pretreatment standards and requirements shall submit to the Control Authority a report containing the information described in R317-8-8.11(1)(d), e), and (f). For Industrial Users subject to equivalent mass or concentration limits established by the Control Authority in accordance with the procedures in R317-8-8.6 this report shall contain a reasonable measure of the User's long term production rate. For all other Industrial Users subject to Categorical Pretreatment Standards expressed in terms of allowable pollutant discharge per unit of production (or other measure of operation), this report shall include the User's actual production during the appropriate sampling period.

(4) Periodic Reports on Continued Compliance.

(a) Any Industrial User subject to a Categorical Pretreatment Standards (except a Non-Significant Categorical User as defined in R317-8-8.2(15)(b) after the compliance date of such pretreatment standard or, in the case of a new source, after commencement of the discharge into the POTW, shall submit to the Control Authority during the months of June and December, unless required more frequently in the pretreatment standard or by the Director, a report indicating the nature and concentration of pollutants in the effluent which are limited by such Categorical Pretreatment Standards. In addition, this report shall include a record of measured or estimated average and maximum daily flows for the reporting period for the discharge reported in R317-8-8.11(1)(d) of this section except that the Control Authority may require more detailed reporting of flows. In cases where the Pretreatment Standard requires compliance with a Best Management Practice (or pollution prevention alternative), the User shall submit documentation required by the Control Authority or the Pretreatment Standard necessary to determine the compliance status of the User. At the discretion of the Control Authority and in consideration of such factors as local high or low flow rates, holidays, budget cycles, etc., the Control Authority may agree to alter the months during which the above reports are to be submitted.

(b) The Control Authority may authorize the Industrial User subject to a Categorical Pretreatment Standard to forego sampling of a pollutant regulated by a Categorical Pretreatment Standard if the Industrial User has demonstrated through sampling and other technical factors that the pollutant is neither present nor expected to be present in the Discharge, or is present only at background levels from intake water and without any increase in the pollutant due to activities of the Industrial User. This authorization is subject to the following conditions:

1. The Control Authority may authorize a waiver where a pollutant is determined to be present solely due to sanitary wastewater discharged from the facility provided that the sanitary wastewater is not regulated by an applicable Categorical Standard and other wise includes no process wastewater.

2. The monitoring waiver is valid only for the duration of the effective period of the Permit or other equivalent individual control mechanism, but in no case longer than 5 years. The User must submit a new request for the waiver before the waiver can be granted for each subsequent control mechanism.

3. In making a demonstration that a pollutant is not present, the Industrial User must provide data from at least one sampling of the facility's process wastewater prior to any treatment present at the facility that is representative of all wastewater from all processes.

The request for a monitoring waiver must be signed in accordance with paragraph (11) of this section and include the certification statement in 40 CFR 403.6(a)(2) ii. Non-detectable sample results may only be used as a demonstration that a pollutant is not present if the EPA approved method from 40 CFR part 136 with the lowest minimum detection level for that pollutant was used in the analysis.

4. Any grant of the monitoring waiver by the Control Authority must be included as a condition in the User's Control mechanism. The reasons supporting the waiver and any information submitted by the User in its request for the waiver must be maintained by the Control Authority for 3 years after expiration of the waiver.

5. Upon approval of the monitoring waiver and revision of the User's control mechanism by the Control Authority, the Industrial User must certify on each report with the statement below, that there has been no increase in the pollutant in its wastestream due to activities of the Industrial User:

"Based on my inquiry of the person or persons directly responsible for managing compliance with the Pretreatment Standard for 40 CFR ........ (specify applicable National Pretreatment Standard part(s)), I certify that, to the best of my knowledge and belief, there has been no increase in the level of .......(list pollutant(s)) in the wastewaters due to the activities at the facility since filing of the last periodic report under R317-8-8.11(4)(a)."

6. In the event that a waived pollutant is found to be present or is expected to be present based on changes that occur in the User's operations, the User must immediately: Comply with the monitoring requirements of paragraph (4)(a) of this section or other more frequent monitoring requirements imposed by the Control Authority; and notify the Control Authority.

7. This provision does not supersede certification processes and requirements established in Categorical Pretreatment Standards, except as otherwise specified in the Categorical Pretreatment Standard.

(c) The Control Authority may reduce the requirement in paragraph (4)(a) of this section to a requirement to report no less frequently than once a year, unless required more frequently in the Pretreatment Standard or by the Approval Authority, where the Industrial User meets all of the following conditions:

1. The Industrial User's total categorical wastewater flow does not exceed any of the following:

a. 0.01 percent of the design dry weather hydraulic capacity of the POTW, or 5,000 gallons per day, whichever is smaller, as measured by a continuous effluent flow monitoring device unless the Industrial User discharges in batches;

b. 0.01 percent of the design dry weather organic treatment capacity of the POTW; and

c. 0.01 percent of the maximum allowable headworks loading for any pollutant regulated by the applicable Categorical Pretreatment Standard for which approved local limits were developed by a POTW in accordance with R317-8-8.5(4) and paragraph (3) of this section;

2. The Industrial User has not been in significant noncompliance, as defined in R317-8-8.8(6)(b) 8. for any time in the past two years;

3. The Industrial User does not have daily flow rates, production levels, or pollutant levels that vary so significantly that decreasing the reporting requirement for this Industrial User would result in data that are not representative of conditions occurring during the reporting period pursuant to paragraph (6)(c) of this section;

4. The Industrial User must notify the Control Authority immediately of any changes at its facility causing it to no longer meet conditions of paragraph (4)(c)1. or 2. of this section. Upon notification, the Industrial User must immediately begin complying with the minimum reporting in paragraph (4)(a) of this section; and

5. The Control Authority must retain documentation to support the Control Authority's determination that a specific Industrial User qualifies for reduced reporting requirements under paragraph (4)(c) of this section for a period of 3 years after the expiration of the term of the control mechanism.

(d) For Industrial Users subject to equivalent mass or concentration limits established by the Control Authority in accordance with the procedures in R317-8-8.6 the report required by R317-8-8.11(4)(a) shall contain a reasonable measure of the User's long term production rate. For all other Industrial Users subject to Categorical Pretreatment Standards expressed only in terms of allowable pollutant discharge per unit of production (or other measure of operation), the report required by R317-8-11(4)(a) shall include the User's actual average production rate for the reporting period.

(5) Notice of Potential Problems Including Slug Loading. All categorical and non-categorical Industrial Users shall notify the POTW immediately of all discharges that could cause problems to the POTW, including any slug loadings, as defined in R317-8-8.5.

(6) Monitoring and Analysis to Demonstrate Continued Compliance.

(a) Except in the case of Non-Significant Categorical User, the reports required in R317-8-8.11(1), (3), (4) and (8) shall contain the results of sampling and analysis of the discharge, including the flow, the nature and concentration, or production and mass where requested by the Control Authority, of pollutants contained therein which are limited by the applicable pretreatment standards. This sampling and analysis may be performed by the Control Authority in lieu of the Industrial User. Where the POTW performs the required sampling and analysis in lieu of the Industrial User, the User will not be required to submit the compliance certification. In addition, where the POTW itself collects all the information required for the report, including flow data, the Industrial User will not be required to submit the report.

(b) If sampling performed by an Industrial User indicates a violation, the User shall notify the Control Authority within 24 hours of becoming aware of the violation. The User shall also repeat the sampling and analysis and submit the results of the repeat analysis to the Control Authority within 30 days after becoming aware of the violation. Where the Control Authority has performed the sampling and analysis in lieu of the Industrial User , the Control Authority must perform the repeat sampling and analysis unless it notifies the User of the violation and requires the User to perform the repeat analysis. Resampling is not required if;

1. The Control Authority performs sampling at the Industrial User at a frequency of at least once per month, or

2. The Control Authority performs sampling at the User between the time when the initial sampling was conducted and the time when the User or the Control Authority receives the results of this sampling.

(c) The reports required in this section shall be based upon data obtained through appropriate sampling and analysis performed during the period covered by the report, which data is representative of conditions occurring during the reporting period. The Control Authority shall require that frequency of monitoring necessary to assess and assure compliance by Industrial Users with applicable Pretreatment Standards and Requirements. Grab samples must be used for pH, cyanide, total phenols, oil and grease, sulfide, and volatile organic compounds. For all other pollutants, 24-hour composite samples must be obtained through flow-proportional composite sampling techniques, unless time proportional composite sampling or grab sampling is authorized by the Control Authority. Where time-proportional composite sampling or grab sampling is authorized by the Control Authority, the samples must be representative of the Discharge and the decision to allow the alternative sampling must be documented in the Industrial User file for that facility or facilities. Using protocols (including appropriate preservation) specified in 40 CFR part 136 and appropriate EPA guidance, multiple grab samples collected during a 24-hour period may be composited prior to the analysis as follows: For cyanide, total phenols, and sulfides the samples may be composited in the laboratory or in the field; for volatile organics and oil and grease the samples may be composited in the laboratory. Composite samples for other parameters unaffected by the compositing procedures as documented in approved EPA methodologies may be authorized by the Control Authority, as appropriate.

(d) For sampling required in support of baseline monitoring and 90-day compliance reports, a minimum of four grab samples must be used for pH, cyanide, total phenols, oil and grease, sulfide, and volatile organics compounds for facilities which historical sampling data do not exist; for facilities for which historical sampling data are available, the Control Authority may authorize a lower minimum. For the reports required by paragraphs (4) and (8) of this section, the Control Authority shall require the number of grab samples necessary to assess and assure compliance by Industrial Users with Applicable Pretreatment Standards and Requirements.

(e) All analyses shall be performed in accordance with procedures contained in 40 CFR 136 or with any other test procedures approved by the Administrator. Sampling shall be performed in accordance with the techniques approved by the Administrator. Where 40 CFR 136 does not include sampling or analytical techniques are inappropriate for the pollutant in question, sampling and analyses shall be performed using validated analytical methods or any other sampling and analytical procedures, including procedures suggested by the POTW or other parties and approved by the Administrator.

(f) If an Industrial User subject to the reporting requirement in R317-8-8.11(4) or (8) monitors any pollutant more frequently than required by the Control Authority, using the procedures prescribed in, R317-8-8.11(6)(e), the results of this monitoring shall be included in the report.

(7) Compliance Schedule for POTWs. The following conditions and reporting requirements shall apply to the compliance schedule for development of an approvable POTW pretreatment program.

(a) The schedule shall contain increments of progress in the form of dates for the commencement and completion of major events leading to the development and implementation of a POTW pretreatment program.

(b) No increment referred to in paragraph (a) above shall exceed nine months.

(c) Not later than 14 days following each date in the schedule and the final date for compliance, the POTW shall submit a progress report to the Director including, as a minimum, whether or not it complied with the increment of progress to be met on such date and, if not, the date on which it expects to comply with this increment of progress, the reason for delay, and the steps taken by the POTW to return to the schedule established. In no event shall more than nine months elapse between such progress reports to the Director.

(8) Reporting requirements for Industrial User not subject to Categorical Pretreatment Standards. The Control Authority shall require appropriate reporting from those Industrial Users with discharges that are not subject to Categorical Pretreatment Standards. Significant Noncategorical Industrial Users shall submit to the Control Authority at least once every six months (on dates specified by the Control Authority) a description of the nature, concentration, and flow of the pollutants required to be reported by the Control Authority. In cases where a local limit requires compliance with a Best Management Practice or pollution prevention alternative, the User must submit documentation required by the Control Authority to determine the compliance status of the User. These reports shall be based on sampling and analysis performed in the period covered by the report and performed in accordance with the techniques described in 40 CFR 136 and amendments thereto. Where 40 CFR 136 does not contain sampling or analytical techniques for the pollutant in question, or where the Director determines that the 40 CFR 136 sampling and analytical techniques are inappropriate for the pollutant in question, sampling and analysis shall be performed by using validated analytical methods or any other applicable sampling and analytical procedures, including procedures suggested by the POTW or other persons, approved by the Administrator. This sampling and analysis may be performed by the Control Authority in lieu of the significant noncategorical Industrial User. Where the POTW itself collects all the information required for the report, the noncategorical significant Industrial User will not be required to submit the report.

(9) Annual POTW reports. POTWs with approved pretreatment programs shall provide the Director with a report that briefly describes the POTW's program activities, including activities of all participating agencies, if more than one jurisdiction is involved in the local program. The report required by this section shall be submitted no later than one year after approval of the POTW's pretreatment program and at least annually thereafter, and shall include, at a minimum, the following:

(a) An updated list of the POTW's Industrial Users, including their names and addresses, or a list of deletions and additions keyed to a previously submitted list. The POTW shall provide a brief explanation of each deletion. This list shall identify which Industrial Users are subject to Categorical Pretreatment Standards and specify which standards are applicable to each Industrial User. The list shall indicate which Industrial Users are subject to local standards that are more stringent than the Categorical Pretreatment Standards. The POTW shall also list the Industrial Users that are subject only to local requirements. The list must also identify Industrial Users subject to Categorical Pretreatment Standards that are subject to reduced reporting requirements under paragraph (4)(c), and identify which Industrial Users are Non-Significant Categorical Industrial Users.

(b) A summary of the status of Industrial User compliance over the reporting period;

(c) A summary of compliance and enforcement activities (including inspections) conducted by the POTW during the reporting period;

(d) A summary of changes to the POTW's pretreatment program that have not been previously reported to the Approval Authority; and

(e) Any other relevant information requested by the Director.

(10) Notification of changed discharge. All Industrial Users shall promptly notify the POTW in advance of any substantial change in the volume or character of pollutants in their discharge including the listed or characteristic hazardous wastes for which the Industrial User has submitted initial notification under R317-8-8.11(14)(d).

(11) Signatory Requirements for Industrial User Reports. The reports required by R317-8-8.11(1), (3) and (4) shall include the certification statement as set forth in 40 CFR and 403.6(a)(2)(ii) and shall be signed as follows;

(a) By a responsible corporate officer if the Industrial User submitting the reports is a corporation. A responsible corporate officer means:

1. A president, secretary, treasurer, or vice-president of the corporation in charge of a principal business function, or any other person who performs similar policy or decision-making functions for the corporation, or

2. The manager of one or more manufacturing, production, or operation facilities provided, the manager is authorized to make management decisions which govern the operation of the regulated facility including having the explicit or implicit duty of making major capital investment recommendations, and initiate and direct other comprehensive measures to assure long-term environmental compliance with environmental laws and regulations; can ensure that the necessary systems are established or actions taken to gather complete and accurate information for control mechanism requirements; and where authority to sign documents has been assigned or delegated to the manager in accordance with corporate procedures.

(b) By a general partner or proprietor if the Industrial User submitting the reports is a partnership or sole proprietorship respectively.

1. The authorization is made in writing by the individual described in paragraph (a) or (b) above.

2. The authorization specifies either an individual or a position having responsibility for the overall operation of the facility from which the Industrial Discharge originates, such as the position of plant manager, operator of a well, or well field superintendent, or a position of equivalent responsibility, or having overall responsibility for environmental matters for the company; and

3. The written authorization is submitted to the Control Authority.

(d) If an authorization is no longer accurate because a different individual or position has responsibility for the overall operation of the facility, or overall responsibility for environmental matters for the company, a new authorization satisfying the requirements must be submitted to the Control Authority prior to or together with any reports to be signed by an authorized representative.

(12) Signatory Requirements for POTW Reports. Reports submitted to the Director by the POTW in accordance with R317-8-8.11(7) and (9) shall be signed by a principal executive officer, ranking elected official or other duly authorized employee. The duly authorized employee must be an individual or position having responsibility for the overall operation of the facility or the Pretreatment Program. This authorization must be made in writing by the principal executive officer or ranking elected official, and submitted to the Approval Authority prior to or together with the report being submitted.

(13) Provisions Governing Fraud and False Statements. The reports and other documents required to be submitted or maintained by R317-8-8.11(1), (3), (4), (7), (8), (11) and (12) shall be subject to the Utah Water Quality Act as amended and all other State and Federal laws pertaining to fraud and false statements.

(14) Record-Keeping Requirements.

(a) Any Industrial User and POTW subject to the reporting requirements established in this subsection shall maintain records of all information resulting from any monitoring activities required by this section, including documentation associated with Best Management Practices. Such records shall include for all samples:

1. The date, exact place, method, and time of sampling and the names of the person or persons taking the samples;

2. The dates and times analyses were performed;

3. Who performed the analyses;

4. The analytical techniques or methods used; and

5. The results of the analyses.

(b) Any Industrial User or POTW subject to these reporting requirements established in this section (including documentation associated with Best Management Practices shall be required to retain for a minimum of 3 years any records of monitoring activities and results, whether or not such monitoring activities are required by this section, and shall make such records available for inspection and copying by the Director, and by the POTW in the case of an Industrial User. This period of retention shall be extended during the course of any unresolved litigation regarding the Industrial User or POTW or when requested by the Director.

(c) A POTW to which reports are submitted by an Industrial User pursuant to R317-8-8.11 shall retain such reports for a minimum of 3 years and shall make such reports available for inspection and copying by the Director. This period of retention shall be extended during the course of any unresolved litigation regarding the discharge of pollutants by the Industrial User or the operation of the POTW pretreatment program or when requested by the Director.

(d) Notification to POTW by Industrial User.

1. The Industrial User shall notify the Director, the POTW, and State hazardous waste authorities in writing of any discharge into the POTW of a substance, which if otherwise disposed of, would be a hazardous waste under R315-2. Such notification must include the name of the hazardous waste as set forth in R315-2, the EPA hazardous waste number, and the type of discharge (continuous, batch, or other). If the Industrial User discharges more than 100 kilograms of such waste per calendar month to the POTW, the notification shall also contain the following information to the extent such information is known and readily available to the Industrial User: An identification of the hazardous constituents contained in the wastes, an estimation of the mass and concentration of such constituents in the wastestream discharged during that calendar month and an estimation of the mass of constituents in the wastestream expected to be discharged during the following twelve months. All notifications must take place within 180 days of the effective date of this rule. Industrial Users who commence discharging after the effective date of this rule shall provide the notification no later than 180 days after the discharge of the listed or characteristic hazardous waste. Any notification under this paragraph need be submitted only once for each hazardous waste discharged. However, notifications of changed discharges must be submitted under R317-8-8.11(10). The notification requirement in this section does not apply to pollutants already reported under the self-monitoring requirements of R317-8-8.11(1), (3), and (4).

2. Dischargers are exempt from the requirements of R317-8-8.11(14)(d) during a calendar month in which they discharge no more than fifteen kilograms of hazardous wastes, unless the wastes are acute hazardous wastes as specified in R315-2. Discharge of more than fifteen kilograms of non-acute hazardous wastes in a calendar month, or of any quantity of acute hazardous wastes as specified in 40 R315-2, requires a one-time notification. Subsequent months during which the Industrial User discharges more than such quantities of any hazardous waste do not require additional notification.

3. In the case of any new regulations adopted by EPA or the Utah Solid and Hazardous Waste Board identifying additional characteristics of hazardous waste or listing any additional substance as a hazardous waste, the Industrial User must notify the POTW, the EPA Regional Waste Management Division Director, and State hazardous waste authorities of the discharge of such substance within 90 days of the effective date of such regulations.

4. In the case of notification made under R317-8-8.11(14)(d), the Industrial User shall certify that it has a program in place to reduce the volume and toxicity of hazardous wastes generated to the degree it has determined to be economically practical.

(15) Annual certification by Non-Significant Categorical Industrial Users. A facility determined to be a Non-Significant Categorical Industrial User pursuant to R317-8-8.2(15)(b) must annually submit the following certification statement, signed in accordance with the signatory requirements in paragraph (11) of this section. This certification must accompany any alternative report required by the Control Authority:

"Based on my inquiry of the person or persons directly responsible for managing compliance with the Categorical Pretreatment Standards under 40 CFR (state section), I certify that, to the best of my knowledge and belief that during the period from (include start of reporting date) to (include end of reporting date):

The facility described as (include facility name) met the definition of a Non-Significant Categorical Industrial User as described in R317-8-8.2(15)(b), the facility complied with all applicable Pretreatment Standards and requirements during this reporting period; and the facility never discharged more than 100 gallons of total categorical wastewater on any given day during this reporting period." This compliance certification is based upon the following information: (include information required by the control mechanism)

(15) The Control Authority that chooses to receive electronic documents must satisfy the requirements of 40 CFR Part 3 - (Electronic reporting).

8.12 CONFIDENTIALITY OF INFORMATION. Any information submitted to the Director pursuant to these rules may be claimed as confidential by the person making the submission. Any such claim must be asserted at the time of submission in the manner prescribed on the application form or instructions, or, in the case of other submissions, by stamping the words "confidential business information" on each page containing such information. If no claim is made at the time of submission, the Director may make the information available to the public without further notice. If a claim is asserted, the information will be treated in accordance with the procedures in the 40 CFR Part 2. Information and data provided to the Director pursuant to this part which is effluent data shall be available to the public without restriction. All other information which is submitted to the State or POTW shall be available to the public at least to the standards of 40 CFR 2.302.

8.13 NET/GROSS CALCULATION. Categorical Pretreatment Standards may be adjusted to reflect the presence of pollutants in an Industrial User's intake water in accordance with this section.

(1) Application. Any Industrial User wishing to obtain credit for intake pollutants must make application to the Control Authority. Upon request of the Industrial User, the applicable standard will be calculated on a "net" basis (i.e., adjusted to reflect credit for pollutants in the intake water) if the requirements of R317-8-8.13(2) are met.

(2) Criteria

(a) Either:

1. The applicable Categorical Pretreatment Standards contained in 40 CFR subchapter N specifically provide that they shall be applied on a net basis, or

2. The Industrial User must demonstrate that the control system it proposes or uses to meet applicable Categorical Pretreatment Standards would, if properly installed and operated, meet the standards in the absence of pollutants in the intake water.

(b) Credit for generic pollutants such as biochemical oxygen demand (BOD), total suspended solids (TSS) and oil and grease should not be granted unless the Industrial User demonstrates that the constituents of the generic measure in the User's effluent are substantially similar to the constituents of the generic measure in the intake water or unless appropriate additional limits are placed on process water pollutants either at the outfall or elsewhere.

(c) Credit shall be granted only to the extent necessary to meet the applicable Categorical Pretreatment Standard(s), up to a maximum value equal to the influent value. Additional monitoring may be necessary to determine eligibility for credits and compliance with standard(s) adjusted under this section.

(d) Credit shall be granted only if the User demonstrates that the intake water is drawn from the same body of water as that into which the POTW discharges. The Control Authority may waive this requirement if it finds that no environmental degradation will result.

8.14 UPSET PROVISION

(1) Definition. "Upset" as used in this subsection means an exceptional incident in which there is unintentional and temporary noncompliance with Categorical Pretreatment Standards because of factors beyond the reasonable control of the Industrial User. An upset does not include noncompliance to the extent caused by operational error, improperly designed treatment facilities, inadequate treatment facilities, lack of preventive maintenance, or careless or improper operation.

(2) Effect of an Upset. An upset constitutes an affirmative defense to an action brought for noncompliance with Categorical Pretreatment Standards if the requirements of R317-8-8.14(3) are met.

(3) Conditions Necessary for a Demonstration of Upset. An Industrial User who wishes to establish the affirmative defense of upset shall demonstrate, through properly signed, contemporaneous operating logs, or other relevant evidence that:

(a) An upset occurred and the Industrial User can identify the cause(s) of the upset;

(b) The facility was at the time being operated in a prudent and workmanlike manner and in compliance with applicable operation and maintenance procedures;

(c) The Industrial User has submitted the following information to the POTW and Control Authority within 24 hours of becoming aware of the upset or if this information is provided orally, a written submission within five days:

1. A description of the indirect discharge and cause of noncompliance;

2. The period of noncompliance, including exact dates and times or, if not corrected, the anticipated time the noncompliance is expected to continue;

3. Steps being taken and/or planned to reduce, eliminate and prevent recurrence of the noncompliance.

(4) Burden of Proof. In any enforcement proceeding the Industrial User seeking to establish the occurrence of an upset shall have the burden of proof.

(5) Reviewability of Agency Consideration of Claims of Upset. In the usual exercise of prosecutorial discretion, State enforcement personnel will review any claims that noncompliance was caused by an upset. No determinations made in the course of the review constitutes final agency action subject to judicial review. Industrial Users will have the opportunity for a judicial determination on any claim of upset only in an enforcement action brought for noncompliance with Categorical Pretreatment Standards.

(6) User responsibility in case of upset. The Industrial User shall control production or discharges to the extent necessary to maintain compliance with Categorical Pretreatment Standards upon reduction, loss or failure of its treatment facility until the facility is restored or an alternative method of treatment is provided. This requirement applies in the situation where, among other things, the primary source of power of the treatment facility is reduced, lost or fails.

8.15 BYPASS PROVISION

(1) Definitions.

(a) "Bypass" means the intentional diversion of wastestreams from any portion of an Industrial User's treatment facility.

(b) "Severe property damage" means substantial physical damage to property, damage to the treatment facilities which causes them to become inoperable, or substantial and permanent loss of natural resources which can reasonably be expected to occur in the absence of a bypass. Severe property damage does not mean economic loss caused by delays in production.

(2) Bypass not violating applicable pretreatment standards or requirements. An Industrial User may allow any bypass to occur which does not cause pretreatment standards or requirements to be violated, but only if it also is for essential maintenance to assure efficient operation. These bypasses are not subject to the provisions of R317-8-8.15(3) and (4).

(3) Notice.

(a) If an Industrial User knows in advance of the need for a bypass, it shall submit prior notice to the Control Authority, if possible at least ten days before the date of the bypass.

(b) An Industrial User shall submit oral notice of an unanticipated bypass that exceeds applicable pretreatment standards to the Control Authority within 24 hours from the time the Industrial User becomes aware of the bypass. A written submission shall also be provided within 5 days of the time the Industrial User becomes aware of the bypass. The written submission shall contain a description of the bypass and its cause; the duration of the bypass, including exact dates and times and if the bypass has not been corrected, the anticipated time it is expected to continue; and steps taken or planned to reduce, eliminate, and prevent reoccurrence of the bypass. The Control Authority may waive the written report on a case-by-case basis if the oral report has been received within 24 hours.

(4) Prohibition of bypass.

(a) Bypass is prohibited and the Control Authority may take enforcement action against an Industrial User for a bypass, unless:

1. Bypass was unavoidable to prevent loss of life, personal injury, or severe property damage;

2. There were no feasible alternatives to the bypass, such as the use of auxiliary treatment facilities, retention of untreated waters, or maintenance during normal periods of equipment downtime. This condition is not satisfied if adequate back-up equipment should have been installed in the exercise of reasonable engineering judgment to prevent a bypass which occurred during normal periods of equipment downtime or preventative maintenance; and

3. The Industrial User submitted notices as required under R317-8-8.15(3).

(b) The Control Authority may approve an anticipated bypass, after considering its adverse effects, if the Control Authority determines that it will meet the three conditions listed in R317-8-8.15(4)(a).

8.16 MODIFICATION OF POTW PRETREATMENT PROGRAMS

(1) General. Either the Director or a POTW with an approved POTW Pretreatment Program may initiate program modification at any time to reflect changing conditions at the POTW. Program modification is necessary whenever there is a significant change in the operation of a POTW pretreatment program that differs from the information in the POTW's submission, as approved under Section R317-8-8.10.

(2) Procedures. POTW pretreatment program modifications shall be accomplished as follows:

(a) For substantial modifications, as defined in R317-8-8.16(3):

1. The POTW shall submit to the Director a statement of the basis for the desired modification, a modified program description or such other documents the Director determines to be necessary under the circumstances.

2. The Director shall approve or disapprove the modification based on its regulatory requirements of R317-8-8.8(6) and using the procedures in R317-10(2) through (6), except as provided in paragraphs (2)4. of this section. The modification shall become effective upon approval by the Director.

3. The modification shall be incorporated into the POTW's UPDES permit after approval. The permit will be modified to incorporate the approved modification in accordance with R317-8-5.6(3)(g).

4. The Approval Authority need not publish a notice of decision provided: The notice of request for approval states that the request will be approved if no comments are received by a date specified in the notice; no substantive comments are received; and the request is approved without change.

(b) The POTW shall notify the Director of any other (i.e. non-substantial) modifications to its pretreatment program at least 45 days prior to when they are to be implemented by the POTW, in a statement similar to that provided for in R317-8-8.16(2)(a) 1. Such non-substantial program modifications shall be deemed to be approved by the Director, unless the Director determines that a modification submitted is in fact a substantial modification, 90 days after the submission of the POTW's statement. Following such "approval" by the Director such modifications shall be incorporated in the POTW's permit in accordance with R317-8-5.6(2)(g). If the Director determines that a modification reported by a POTW is in fact a substantial modification, the Director shall notify the POTW and initiate the procedures in R317-8-8.16(2)(a).

(3) Substantial modifications.

(a) The following are substantial modifications for purposes of this section:

1. Changes to the POTW's legal authorities;

2. Changes to local limits, which result in less stringent local limits;

3. Changes to the POTW's control mechanism;

4. Changes to the POTW's method for implementing Categorical Pretreatment Standards (e.g., incorporation by reference, separate promulgation, etc.):

5. A decrease in the frequency of self-monitoring or reporting required of Industrial Users;

6. A decrease in the frequency of Industrial User inspections or sampling by the POTW;

7. Changes to the POTW's confidentiality procedures;

8. Significant reductions in the POTW's Pretreatment Program resources (including personnel commitments, equipment, and funding levels); and

9. Changes in the POTW's sludge disposal and management practices.

(b) The Director may designate other specific modifications in addition, to those listed in R317-8-8.16(3)(a), as substantial modifications.

(c) A modification that is not included in R317-8-8.16(3)(a) is nonetheless a substantial modification for purposes of this section if the modification:

1. Would have a significant impact on the operation of the POTW's Pretreatment Program;

2. Would result in an increase in pollutant loadings at the POTW; or

3. Would result in less stringent requirements being imposed on Industrial Users of the POTW.

8.17 VARIANCES FROM CATEGORICAL PRETREATMENT STANDARDS FOR FUNDAMENTALLY DIFFERENT FACTORS (FDF). A variance may be granted, using the procedures of 40 CFR 403.13, to an Industrial User if data specific to the User indicates it presents factors fundamentally different from those considered by EPA in developing the limit at issue.

40 CFR 403.13 is incorporated into this rule by reference as indicated in R317-8-1.10(6)

Notes

Utah Admin. Code R317-8-8

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