Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 2 - DISCHARGES, PERMIT REGS › Appendix E - Additional Requirements Applicable to New and Existing Publicly owned Treatment Works (POTWs)

Current through July 13, 2024
(a) Application requirements for new and existing POTWs.
				  POTWs shall provide the following information, in addition to that described in
				  Section
				  5(a)
				  (v), to the administrator, using the
				  application form provided by the administrator.
(i) Name of State Management/River Basin and 12 digit
				  hydrologic cataloging unit code.
(ii) Critical flow of the receiving surface waters of the
				  state and total hardness of the receiving surface waters of the state at
				  critical low flow.
(iii) The following POTWs shall provide to the administrator
				  the results of whole effluent toxicity testing conducted in accordance with EPA
				  approved methods:
(A) All POTWs with design influent flows equal to or greater
				  than one million gallons per day; and
(B) All POTWs with approved pretreatment programs or POTWs
				  required to develop a pretreatment program.
(iv) Effluent monitoring for specific parameters.
(A) All applicants must submit to the administrator effluent
				  monitoring information for samples taken from each outfall through which
				  effluent is discharged to surface waters of the state, except for CSOs. The
				  administrator may allow applicants to submit sampling data for only one (1)
				  outfall on a case-by-case basis, where the applicant has two (2) or more
				  outfalls with substantially identical effluent. The administrator may also
				  allow applicants to composite samples from one or more outfalls that discharge
				  into the same mixing zone.
(B) Unless otherwise indicated, all applicants must sample
				  and analyze for the pollutants listed in Table E1 of this Appendix.
(C) Unless otherwise indicated, all applicants with a design
				  flow greater than or equal to 0.1 mgd must sample and analyze for the
				  pollutants listed in Table E2 of this Appendix. Facilities are not required to
				  sample and analyze for chlorine if they do not use chlorine for disinfection,
				  do not use chlorine elsewhere in the treatment process, and have no reasonable
				  potential to discharge chlorine in their effluent.
(D) The following applicants must sample and analyze for the
				  pollutants listed in 40 CFR
				  122 Appendix J Table 2 and for any other
				  pollutants for which state surface water quality standards have been
				  established for the receiving waters:
(I) All POTWs with a design flow rate equal to or greater
				  than one million gallons per day.
(II) All POTWs with approved pretreatment programs or POTWs
				  required to develop a pretreatment program.
(III) Any other POTW as required by the administrator.
(E) Unless otherwise indicated, all applicants must provide
				  data from a minimum of three (3) samples taken within four and one-half (4.5)
				  year prior to the date of the permit application. Samples must be
				  representative of seasonal variation in the discharge from each outfall.
				  Existing data may be used, if available, in lieu of sampling done solely for
				  the purpose of this application.
(F) All existing data for pollutants specified in this
				  Appendix that is collected within four and one-half (4.5) years of the
				  application must be included in the pollutant data summary submitted by the
				  applicant. If, however, the applicant samples for a specific pollutant on a
				  monthly or more frequent basis, it is only necessary, for such pollutant, to
				  summarize all data collected within one (1) year of the application.
(G) Unless otherwise indicated, all applicants must collect
				  samples of effluent and analyze such samples for pollutants in accordance with
				  analytical methods approved and 40 CFR Part 136 unless an alternative is
				  specified in the existing WYPDES permit. Grab samples must be used for pH,
				  temperature, cyanide, total phenols, residual chlorine, oil and grease, and
				  fecal coliform. For all other pollutants, 24-hour composite samples must be
				  used. For a composite sample, only one analysis of the composite of aliquots is
				  required.
(H) The effluent monitoring data provided must include at
				  least the following information for each parameter.
(I) daily maximum discharge, expressed as concentration or
				  mass, based upon actual sample values;
(II) daily average discharge for all samples, expressed as
				  concentration or mass, and the number of samples used to obtain this
				  value;
(III) The analytical method used; and
(IV) The practical quantitation limit for the analytical
				  method used.
(I) Unless otherwise required by the administrator, metals
				  must be reported as dissolved or total recoverable as applicable in accordance
				  with Wyoming Water Quality Rules and Regulations Chapter 1.
(v) In addition to the POTWs listed in paragraph (a) (i) of
				  this appendix, the division may require other POTWs to submit the results of
				  toxicity tests with their permit applications, based on consideration of the
				  following factors:
(A) The variability of the pollutants or pollutant parameters
				  in the POTW effluent (based on chemical-specific information, the type of
				  treatment facility, and types of industrial contributors);
(B) The dilution of the effluent in the receiving water
				  (ratio of effluent flow to receiving surface waters of the state flow);
(C) Existing controls on point or nonpoint sources, including
				  TMDL calculations for the waterbody segment and the relative contribution of
				  the POTW;
(D) Receiving water characteristics, including possible or
				  known water quality impairment, and whether the POTW discharges to waters
				  designated as Class 1 in accordance with Wyoming Water Quality Rules and
				  Regulations Chapter 1; or
(E) Other considerations (including but not limited to the
				  history of toxic impact and compliance problems at the POTW), which the
				  administrator determines could cause or contribute to adverse water quality
				  impacts.
(vi) For POTWs required under paragraph (a) (i) or (a) (ii)
				  of this appendix to conduct toxicity testing, POTWs shall use methods approved
				  by the administrator.
(vii) Effluent monitoring for whole effluent toxicity.
(A) All applicants must provide an identification of any
				  whole effluent toxicity tests conducted during the four and one half (4.5)
				  years prior to the date of the application on any of the applicant's discharges
				  or on any receiving water near the discharge.
(B) Where the POTW has two or more outfalls with
				  substantially identical effluent discharging to the same receiving water
				  segment, the administrator may allow applicants to submit whole effluent
				  toxicity data for only one (1) outfall on a case-by-case basis. The
				  administrator may also allow applicants to composite samples from one (1) or
				  more outfalls that discharge into the same mixing zone.
(C) Each applicant required to perform whole effluent
				  toxicity testing pursuant to paragraph (a) (i) of this Appendix must
				  provide:
(I) Results of a minimum of four (4) quarterly tests for a
				  year, from the year preceding the permit application; or
(II) Results from four tests performed at least annually in
				  the four and one half (4.5) year period prior to the application, provided the
				  results show no appreciable toxicity using a safety factor determined by the
				  permitting authority.
(D) Applicants must conduct tests with multiple species (no
				  less than two (2) species; e.g., fish invertebrate, plant) and test for acute
				  or chronic toxicity, depending on the range of receiving water dilution. It is
				  recommended that applicants conduct acute or chronic testing based on the
				  following dilutions.
(I) Acute toxicity testing if the dilution of the effluent is
				  greater than 1,000:1 at the edge of the mixing zone.
(II) Acute or chronic toxicity testing if the dilution of the
				  effluent is between 100:1 and 1000:1 at the edge of the mixing zone. Acute
				  testing may be more appropriate at the higher end and chronic testing may be
				  more appropriate towards the lower end.
(III) Chronic testing if the dilution of the effluent is less
				  than 100:1 at the edge of the mixing zone.
(E) Unless otherwise directed by the administrator, each
				  applicant required to perform whole effluent toxicity testing pursuant to
				  paragraph (a) (i) of this appendix must provide the number of chronic or acute
				  whole effluent toxicity tests that have been conducted since the last permit
				  reissuance.
(F) Applicants must provide the results using a form provided
				  by the administrator, or test summaries if available and comprehensive, for
				  each whole effluent toxicity test conducted pursuant to this appendix for which
				  such information has not been reported previously to the administrator.
(G) For the purposes of these regulations whole effluent
				  toxicity testing for must be conducted using methods approved under 40 CFR Part
				  136.
(H) For whole effluent toxicity data submitted to the
				  administrator within four and one half (4.5) years prior to the date of the
				  application applicants must provide the dates on which the data were submitted
				  and a summary of the results, unless otherwise directed by the
				  administrator.
(I) Each POTW required to perform whole effluent toxicity
				  testing in accordance with these regulations must provide any information on
				  the cause of toxicity and written details of any toxicity reduction evaluation
				  conducted, if any whole effluent toxicity test conducted within the past four
				  and one-half years revealed toxicity.
(viii) POTWs receiving Resource Conservation and Recovery Act
				  (RCRA), Comprehensive Environmental Response, Compensation, and Liability Act
				  (CERCLA), or RCRA Corrective Action wastes or wastes generated at another type
				  of environmental cleanup or remediation site must provide the following
				  information.
(A) If the POTW receives, or has been notified that it will
				  receive, by truck, rail, or dedicated pipe any wastes that are regulated as
				  RCRA hazardous wastes pursuant to 40 CFR Part 261, the applicant must report
				  the following:
(I) The method by which the waste is received (i.e., whether
				  by truck, rail, or dedicated pipe); and
(II) The hazardous waste number amount received annually of
				  each hazardous waste.
(B) If the POTW receives, or has been notified that it will
				  receive wastewaters that originate from remedial activities, including those
				  undertaken pursuant to CERCLA and sections 3004(u) or 3008(h) of RCRA, the
				  applicant must report the following:
(I) The identity and description of the site(s) or
				  facility(ies) at which the wastewater originates.
(II) The identities of the wastewater's hazardous
				  constituents, as listed in Appendix VIII of 40 CFR Part 261, if known.
(III) The extent of treatment, if any, the wastewater
				  receives or will receive before entering the POTW.
(C) Applicants are exempt from the requirements of paragraph
				  (e)(ii) of this Appendix if they receive no more than fifteen kilograms per
				  month of hazardous wastes as specified in
				  40 CFR
				  261.30(d) and
				  261.33(e).
(ix) Each applicant with combined sewer systems must provide
				  the following information.
(A) Combined sewer system information:
(I) System map. A map indicating the location of the
				  following:
(1.) All combined sewer overflow (CSO) discharge
				  points.
(2.) Sensitive use areas potentially affected by CSOs.
(3.) Waters supporting threatened or endangered species
				  potentially affected by CSOs.
(II) System diagram. A diagram of the combined sewer
				  collection system that includes:
(1.) The location of major sewer trunk lines, both combined
				  and separate sanitary.
(2.) The locations of points where separate sanitary sewers
				  feed into the combined sewer system.
(3.) In-line and off-line storage structures.
(4.) The locations of flow regulating devices.
( 5.) The location of pump stations.
(B) Information on combined sewer outfalls:
(I) Description of the outfall, including:
(1.) Outfall number.
(2.) State, county, and city or town in which outfall is
				  located.
(3.) Latitude and longitude, to the nearest 15
				  seconds.
(4.) Distance from shore and depth below surface. (5.)
				  Whether the applicant monitored any of the following in the past year for the
				  CSO:
a. Rainfall.
b. CSO flow volume.
c. CSO pollutant concentrations.
d. Receiving water quality.
e. CSO frequency.
(6.) The number of storm events monitored in the last
				  year.
(II) CSO events. The following information about CSO
				  overflows from each outfall.
(1.) The number of events in the past year.
(2.) The average duration per event, if available.
(3.) The average volume per CSO event if available.
(4.) The minimum rainfall that caused a CSO event, if
				  available, in the last year.
(III) Description of receiving waters. The following
				  information about receiving water.
(1.) Name of the receiving water.
(2.) Name of watershed/stream system and the State watershed
				  (12-digit) code (if known).
(IV) CSO operations. A description of any known water quality
				  impacts on the receiving water caused by the CSO (e.g., permanent or
				  intermittent beach closings, permanent or intermittent fish kills, fish
				  advisories, other recreational loss, or exceedance of any applicable state
				  water quality standard.
(x) Contractors. All applicants must provide the name,
				  mailing address, telephone number, and responsibilities of all contractors
				  responsible for any operational or maintenance aspects of the facility.
(b) A permit application shall not be considered complete if
				  the administrator has waived application requirements under this Appendix or
				  Section
				  5 of these regulations and the Regional
				  Administrator of the EPA has disapproved the waiver. If a waiver request has
				  been submitted to the Regional Administrator of the EPA more than 210 days
				  prior to permit expiration and the Regional Administrator has not disapproved
				  the waiver application 181 days prior to permit expiration, the permit
				  application lacking the information subject to the waiver request shall be
				  considered complete.
(c) Secondary treatment requirements. This part provides
				  information on the level of effluent quality that shall be obtained through the
				  application of secondary or equivalent treatment.
(i) Terms used in this appendix are defined as
				  follows:
(A) 7-day average. The arithmetic mean of pollutant parameter
				  values for samples collected in a period of seven (7) consecutive days.
(B) 30-day average. The arithmetic mean of pollutant
				  parameter values of samples collected in a period of 30 consecutive
				  days.
(C) BOD5. The five day measure of the
				  pollutant parameter biochemical oxygen demand
				  (BOD5).
(D) CBOD5. The five day measure of the
				  pollutant parameter carbonaceous biochemical oxygen demand
				  (CBOD5).
(E) Effluent concentrations consistently achievable through
				  proper operation and maintenance.
(I) For a given pollutant parameter, the
				  95th percentile value for the 30-day average
				  effluent quality achieved by a treatment works in a period of at least two
				  years, excluding values attributable to upsets, bypasses, operational errors,
				  or other unusual conditions; and,
(II) A 7-day average value equal to 1.5 times the value
				  derived under paragraph (c) (i) (E) (I) of this appendix.
(F) Facilities eligible for treatment equivalent to secondary
				  treatment. Treatment works shall be eligible for consideration for effluent
				  limitations described for treatment equivalent to secondary treatment (133.105)
				  if:
(I) The BOD5 and TSS effluent
				  concentrations consistently achievable through proper operation and maintenance
				  of the treatment works exceed the minimum level of effluent quality set forth
				  in 133.02(a) and (b).
(II) A trickling filter or waste stabilization pond is used
				  as the principal process; and,
(III) The treatment works provide significant biological
				  treatment of municipal wastewater.
(G) Percent removal. A percentage expression of the removal
				  efficiency across a treatment plan for a given pollutant parameter, as
				  determined from the 30-day average values of the raw wastewater influent
				  pollutant concentrations to the facility and the 30-day average values of the
				  raw wastewater influent pollutant concentrations to the facility and the 30-day
				  average values of the effluent pollutant concentrations for a given time
				  period.
(H) Significant biological treatment. The use of an aerobic
				  or anaerobic biological treatment process in a treatment works to consistently
				  achieve a 30-day average of at least 65 percent removal of
				  BOD5.
(I) TSS. The pollutant parameter total suspended
				  solids.
(J) Significantly more stringent limitation means
				  BOD5 and TSS limitations necessary to meet the percent
				  removal requirements of at least 5 mg/l more stringent than the otherwise
				  applicable concentration-based limitations (e.g., less than 25 mg/l in the case
				  of the secondary treatment limits for BOD5 and TSS), or
				  the percent removal limitations in paragraphs (c) (ii) and (c) (v) of this
				  appendix, if such limits would, by themselves, force significant construction
				  or other significant capital expenditure.
(ii) Secondary Treatment. The following paragraphs describe
				  the minimum level of effluent quality attainable by secondary treatment in
				  terms of the parameters BOD5, TSS, and pH. All
				  requirements for each parameter shall be achieved except as provided for in
				  paragraphs (c) (iii) and (c) (v) of this appendix.
(A) BOD5.
(I) The 30-day average shall not exceed 30 mg/l.
(II) The 7-day average shall not exceed 45 mg/l.
(III) The 30-day average percent removal shall not be less
				  than 85 percent.
(IV) At the option of the administrator, in lieu of the
				  parameter BOD5. and the levels of the effluent quality
				  specified in paragraphs (c) (ii) (A) (I) (II) and (III) , the parameter C
				  BOD5. may be substituted with the following levels of
				  the CBOD5 effluent quality provided:
(1.) The 30-day average shall not exceed 25 mg/l.
(2.) The 7-day average shall not exceed 40 mg/l.
(3.) The 30-day average percent removal shall not be less
				  than 85 percent.
(B) TSS.
(I) The 30-day average shall not exceed 30 mg/l.
(II) The 7-day average shall not exceed 45 mg/l
(III) The 30-day average percent removal shall not be less
				  than 85 percent.
(C) pH. The effluent values for pH shall be maintained within
				  the limits of 6.0 to 9.0 unless the publicly owned treatment works demonstrates
				  that: (1) Inorganic chemicals are not added to the waste stream as part of the
				  treatment process; and (2) contributions from industrial sources do not cause
				  the pH of the effluent to be less than 6.0 or greater than 9.0.
(iii) Special considerations.
(A) Combined sewers. Treatment works subject to this part may
				  not be capable of meeting the percentage removal requirements established under
				  102 (a) (3) and (b) (3) or 105 (a) (3) and (b) (3) during wet weather where the
				  treatment works receive flows from combined sewers (i.e., sewers which are
				  designed to transport both storm water and sanitary sewage). For such treatment
				  works, the decision must be made on a case-by-case basis as to whether any
				  attainable percentage removal level can be defined, and if so, what the level
				  should be.
(B) Industrial waste. For certain industrial categories, the
				  discharge to surface waters of the state of BOD5 and TSS
				  permitted under Sections 301(b) (1) (A) (i), (b) (2) (E) or 306 of the CWA may
				  be less stringent than the values given in paragraphs (c) (ii) (A) (I) and (IV)
				  (i), (c) (ii) (B) (I), (c) (v) (A) (I), (c) (v) (B) (I) and (c) (v) (E) (I) (i)
				  of this appendix. In cases when wastes would be introduced from such an
				  industrial category into a publicly owned treatment works, the values for
				  BOD5 and TSS in paragraphs (c) (ii) (A) (I) and (IV)
				  (i), (c) (ii) (B) (I), (c) (v) (A) (I), (c) (v) (B) (I) and (c) (v) (E) (I) (i)
				  of this appendix may be adjusted upwards provided that: (1) The permitted
				  discharge of such pollutants attributable to the industrial category, would not
				  be greater that which would be permitted under Sections 301(b) (1) (A) (i), (b)
				  (2) (E) or 306 of the CWA if such industrial category were to discharge
				  directly into the surface waters of the state, and (2) the flow or loading of
				  such pollutants introduced by the industrial category exceeds 10 percent of the
				  design flow or loading of the publicly owned treatment works. When such an
				  adjustment is made, the values for BOD5 or TSS in
				  paragraphs (c) (ii) (A) (II) and (IV) (ii), (c) (ii) (B) (II), (c) (v) (A)
				  (II), (c) (v) (B) (II) and (c) (v) (E) (I) (ii) of this appendix. should be
				  adjusted proportionately.
(C) Waste stabilization ponds. The administrator, may
				  authorize adjusting the minimum levels of effluent quality set forth in
				  paragraphs (c) (v) (B) (1), (2) and (3) of this appendix for treatment works
				  subject to this part, to conform to the TSS concentrations achievable with
				  waste stabilization ponds, provided that:
(I) Waste stabilization ponds are the principal process used
				  for secondary treatment; and
(II) Operation and maintenance data indicate that the TSS
				  values specified in paragraphs (c) (v) (B) (1), (2) and (3) of this appendix
				  cannot be achieved. The term "TSS concentrations achievable with waste
				  stabilization ponds" means a TSS value, determined by the administrator, which
				  is equal to the effluent concentration achieved 90 percent of the time within a
				  state or appropriate contiguous geographical area by waste stabilization ponds
				  that are achieving the levels of effluent quality for
				  BOD5 specified in paragraphs (c) (v) (A) (1) of this
				  appendix.
(D) Less concentrated influent wastewater for separate
				  sewers. The administrator may authorize substituting either a lower percent
				  removal requirement or a mass loading limit for the percent removal
				  requirements set forth in paragraphs (c) (ii) (A) (III) and (IV) (iii), (c)
				  (ii) (B) (III), (c) (v) (A) (III), (c) (v) (B) (III) and (c) (v) (E) (I) (iii)
				  of this appendix provided that the permittee satisfactorily demonstrates
				  that:
(I) The treatment works is consistently meeting, or will
				  consistently meet, its permit effluent concentration limits but its percent
				  removal requirements cannot be met due to less concentrated influent
				  wastewater;
(II) To meet the percent removal requirements, the treatment
				  works would have to achieve significantly more stringent limitations than would
				  otherwise be required by the concentration-based standards; and
(III) The less concentrated influent wastewater is not the
				  result of excessive I/I. The determination of whether the less concentrated I/I
				  will use the definition of excessive I/I in
				  40
				  CFR 35.2005(b) (16) plus the
				  additional criterion that inflow is non-excessive if the total flow to the POTW
				  (i.e., wastewater plus inflow plus infiltration) is less than 25 gallons per
				  capita per day.
(E) Less concentrated influent wastewater for combined sewers
				  during dry weather. The administrator may substitute either a lower percent
				  removal requirement or a mass loading limit for the percent removal
				  requirements set forth in paragraphs (c) (ii) (A) (III) and (IV) (iii), (c)
				  (ii) (B) (III), (c) (v) (A) (III), (c) (v) (B) (III) and (c) (v) (E) (I) (iii)
				  of this appendix provided that the permittee satisfactorily demonstrates
				  that:
(I) The treatment works is consistently meeting, or will
				  consistently meet, its permit effluent concentration limits, but the percent
				  removal requirements cannot be met due to less concentrated influent
				  wastewater;
(II) To meet the percent removal requirements, the treatment
				  works would have to achieve significantly more stringent effluent
				  concentrations than would otherwise be required by the concentration-based
				  standards; and
(III) The less concentrated influent wastewater does not
				  result from either excessive infiltrations or clear water industrial discharges
				  during dry weather periods. The determination of whether the less concentrated
				  wastewater results from excessive infiltration is discussed in
				  40 CFR
				  352005(b) (28), plus the
				  additional criterion that either 40 gallons per capita per day or 1500 gallons
				  per inch diameter per mile of sewer may be used as the threshold value for that
				  portion of the dry weather base flow attributed to infiltration. If the less
				  concentrated influent wastewater is the result of clear water industrial
				  discharges, then the treatment works must control such discharges pursuant to
				  40 CFR Part 403.
(iv) Sampling and test procedures.
(A) Sampling and test procedures for pollutants listed in
				  this part shall be in accordance with guidelines in 40 CFR Part 136.
(B) Chemical oxygen demand (COD) or total organic carbon
				  (TOC) may be substituted for BOD5 when a long-term
				  BOD5 , COD or BOD5 TOC
				  correlation has been demonstrated.
(v) Treatment equivalent to secondary treatment. This section
				  describes the minimum level of effluent quality attainable by facilities
				  eligible for treatment equivalent to secondary treatment under paragraph (c)
				  (i) (F) of this appendix in terms of the parameters BOD5
				  , TSS and pH. All requirements for the specified parameters in paragraphs (c)
				  (v) (A), (B) and (C) of this appendix shall be achieved except as provided for
				  in paragraph (c) (iii), or paragraphs (c) (v) (D), (E) or (F) of this
				  appendix.
(A) BOD5.
(I) The 30-day average shall not exceed 45 mg/l.
(II) The 7-day average shall not exceed 65 mg/l.
(III) The 30-day average percent removal shall not be less
				  than 65 percent.
(B) TSS. Except where TSS values have been adjusted in
				  accordance with paragraph (c) (iii) (C) of this appendix:
(I) The 30-day average shall not exceed 45 mg/l.
(II) The 7-day average shall not exceed 65 mg/l.
(III) The 30-day average percent removal shall not be less
				  than 65 percent.
(C) pH. The requirements of paragraph (c) (ii) (C) of this
				  appendix shall be met.
(D) Alternative requirements. Except as limited by paragraph
				  (c) (v) (F) of this appendix, and after public notice and opportunity for
				  public comment, the administrator may adjust the minimum levels of effluent
				  quality set forth in paragraphs (c) (v) (A) (I), (A) (II), (B) (I) and (B) (II)
				  of this appendix for trickling filter facilities and in paragraphs (c) (v) (A)
				  (I) and (A) (II) of this section for waste stabilization pond facilities, to
				  conform to the BOD5 and TSS effluent concentrations
				  consistently achievable through proper operation and maintenance by the median
				  (50th percentile) facility in a representative
				  sample of facilities within the state or an appropriate contiguous geographical
				  area that meet the definition of facilities eligible for treatment equivalent
				  to secondary treatment.
(E) CBOD5 limitations.
(I) Where data are available to establish
				  CBOD5 limitations for a treatment works subject to this
				  Section, the administrator may substitute the parameter
				  CBOD5 for the parameter BOD5. In
				  paragraph (c) (v) (A) (I) (II) (III) of this appendix, on a case-by-case basis
				  provided that the levels of CBOD5 effluent quality are
				  not less stringent than the following:
(1.) The 30-day average shall not exceed 40 mg/l.
(2.) The 7-day average shall not exceed 60 mg/l.
(3.) The 30-day average percent removal shall not be less
				  than 65 percent.
(II) Where data are available, the parameter
				  CBOD5 may be used for effluent quality limitations
				  established under paragraph (c) (v) (D) of this appendix. Where concurrent
				  BOD5 effluent data are available, they must be submitted
				  with the CBOD5 data as part of the approval process
				  outlined in paragraph (c) (v) (D) of this appendix.
(F) Permit adjustments. Any permit adjustment made pursuant
				  to this part may not be any less stringent than the limitations required
				  pursuant to paragraph (c) (v) (A) through (E) of this appendix. Furthermore,
				  more stringent limitations shall be required when adjusting permits if:
(I) For existing facilities, the administrator determines
				  that the 30-day average and 7-day average BOD5 and TSS
				  effluent values that could be achievable through proper operation and
				  maintenance of the treatment works, based on an analyses of the past
				  performance of the treatment works to achieve more stringent limitations, or
(II) For new facilities, the administrator determines that
				  the 30-day average and 7-day average BOD5 and TSS
				  effluent values that could be achievable through proper operation and
				  maintenance of the treatment works, considering the design capability of the
				  treatment process and geographical and climatic conditions, would enable the
				  treatment works to achieve more stringent limitations.
(d) Permits for publicly owned treatment works will require
				  that the permittee must provide adequate notification to the administrator of
				  the following:
(i) Any new introduction of pollutants into the publicly
				  owned treatment works from an indirect discharger which would be subject to
				  Sections 301 or 306 of the CWA if it were directly discharging those
				  pollutants, and
(li) Any substantial change in the volume or character of
				  pollutants being introduced into that publicly owned treatment works by a
				  source introducing pollutants into the publicly owned treatment works at the
				  time of issuance of the permit.
(lii) For the purposes of Appendix E (d) (i) and (ii),
				  adequate notification shall include information on the quality and quantity of
				  effluent introduced into the publicly owned treatment works; and any
				  anticipated impact of the change on the quantity or quality of effluent to be
				  discharged from the publicly owned treatment works.
Table E1
Effluent Parameters for All POTWs
Biological oxygen demand (BOD5
							 or CBOD5)
Fecal Coliform
pH
Temperature
Total Suspended Solids
Table E2
Effluent Parameters for Selected POTWS
Ammonia (as N)
Chlorine (total residual, TRC)
Dissolved oxygen
Nitrate/Nitrite
Kjeldahl nitrogen
Oil and grease
Phosphorus
Total dissolved solids