Hawaii Administrative Rules › Title 11 - DEPARTMENT OF HEALTH › Subtitle 1 - GENERAL DEPARTMENTAL PROVISIONS › Chapter 55 - WATER POLLUTION CONTROL › Appendix D - NPDES GENERAL PERMIT AUTHORIZING DISCHARGES OF TREATED EFFLUENT FROM LEAKING UNDERGROUND STORAGE TANK REMEDIAL ACTIVITIES

Current through June, 2024
1. Coverage under this General Permit
(a) This general permit covers only facilities where
				  petroleum hydrocarbons have been released from underground storage tanks and
				  the cleanup (or remedial action) involves a release or discharge of treated
				  ground water to state waters.
(b) This general permit covers all areas of the State except
				  for discharges into natural freshwater lakes, saline lakes, and anchialine
				  pools.
2. Limitations on Coverage under this General Permit
(a) This general permit does not cover the following:
(1) Discharges of treated ground water into a sanitary sewer
				  system; and
(2) Discharges of treated ground water which initially enter
				  separate storm water drainage systems, unless a permit, license, or equivalent
				  written approval is granted by the owner(s) of the drainage system(s) allowing
				  the subject discharge to enter their drainage system(s); except if the
				  permittee is the owner of the drainage system.
(b) The director may require any permittee authorized by this
				  general permit to apply for and obtain an individual permit, in accordance with
				  sections
				  11-55-34.05
				  and
				  11-55-34.10.
3. Term of General Permit
(a) This general permit becomes effective ten days after
				  filing with the office of the lieutenant governor.
(b) A notice of general permit coverage under this general
				  permit expires:
(1) Five years after the effective date of this general
				  permit;
(2) When the notice of general permit coverage specifies;
				  or
(3) When amendments to section
				  11-55-34.02(b)(3)
				  are adopted, whichever is earliest, unless the notice of general permit
				  coverage is administratively extended under section
				  11-55-34.09(d).
4. Notice of Intent Requirements
(a) The owner or its duly authorized representative shall
				  submit a complete notice of intent no later than thirty days before the
				  proposed starting date of the discharge or thirty days before the expiration
				  date of the applicable notice of general permit coverage.
(b) The owner or its duly authorized representative shall
				  include the following information in the notice of intent:
(1) Information required in section 34 of appendix A of
				  chapter 11-55;
(2) List of up to four Standard Industrial Classification
				  codes or North American Industrial Classification System codes that best
				  represent the products or activities of the facility;
(3) Quantitative data on pollutants that the owner or
				  operator of the facility knows or reasonably should know are or will be present
				  in the discharge and for which pollutants numerical criteria for the existing
				  or proposed receiving state waters are specified in section
				  11-54-4;
(4) Treatment system operations plan which specifies the
				  treatment system to be used and describes its operation in detail. If any
				  treatment technology is being considered other than the Granular-Activated
				  Carbon Process or the Air-Stripping Process, then additional technical
				  information on the technology which is consistent with this permit shall be
				  submitted to the director for review as soon as the decision for its use has
				  been made. The treatment system operations plan shall include a contingency
				  plan to be activated in the event of an emergency; provisions for system
				  shut-down and any other measures for the protection of health and safety of
				  employees and the public; a sampling plan; and a detailed schedule for sampling
				  and analysis of the treated groundwater. The treatment system operations plan
				  shall be modified as required by the director. The permittee shall retain the
				  plan, and all subsequent revisions, on-site or at a nearby office;
(5) Certification report certifying the adequacy of each
				  component of the proposed treatment facility along with the associated
				  treatment system operations plan. The certification report shall describe
				  accepted engineering practice of how the process and physical design of the
				  treatment facilities will ensure compliance with this general permit. The
				  signature and professional engineering license number of the design engineer
				  shall be placed on the report. Each report shall also certify that:
(A) All of the startup and operation instruction manuals for
				  the treatment facility are adequate and available to operating
				  personnel;
(B) All treatment facility maintenance and testing schedules
				  are included in the treatment facility treatment system operations plan;
				  and
(C) Effluent sampling locations and ports are located in
				  areas where samples representative of the waste stream to be monitored can be
				  obtained.
(6) The average and maximum daily flow rates of effluent
				  discharge; and
(7) The best estimate of the date(s) on which the facility
				  will begin and terminate the discharge,
(c) The director may require additional information to be
				  submitted,
(d) The owner or its duly authorized representative shall
				  submit a complete notice of intent to the director at the following address or
				  as otherwise specified:
Director of Health
Clean Water Branch
Environmental Management Division
State Department of Health
P.O. Box 3378
Honolulu, Hawaii 96801-3378
5. Standard Conditions
The permittee shall comply with the standard conditions as
				  specified in appendix A of chapter 11-55. In case of conflict between the
				  conditions stated here and those specified in the standard general permit
				  conditions, the more stringent conditions shall apply.
6. Effluent Limitations and Monitoring Requirements
(a) The effluent shall be limited and monitored by the
				  permittee as specified in this section and in Table 34.2. (Daily maximum
				  effluent limitations for saline water apply only when discharges to saline
				  water occur and daily maximum effluent limitations for fresh water apply only
				  when discharges to fresh water occur.)
(1) Sampling Point
The permittee shall collect representative discharge samples
				  at the nearest accessible point after final treatment and prior to actual
				  discharge or mixing with the receiving state waters.
(2) Collection of Samples
The permittee shall take samples and measurements for the
				  purposes of monitoring which are representative of the volume and nature of the
				  total discharge.
(3) Types of Samples
(A) "Grab sample" means an individual sample collected within
				  the first fifteen minutes of a discharge.
(B) "Composite sample" means a combination of at least eight
				  sample aliquots, collected at periodic intervals during the operating hours of
				  the facility over a twenty-four-hour period. The composite shall be flow
				  proportional; either the time interval between each aliquot or the volume of
				  each aliquot shall be proportional to the total effluent flow since the
				  collection of the previous aliquot. The permittee may collect aliquots manually
				  or automatically unless otherwise stated.
(4) Test Procedures
(A) The permittee shall use test procedures for the analysis
				  of pollutants which conform with regulations published under Section 304 (h) of
				  the Act.
(B) Unless otherwise noted in this general permit, the
				  permittee shall measure all pollutant parameters in accordance with methods
				  prescribed in 40 CFR Part 136, promulgated under Section 304(h) of the Act. The
				  permittee may submit applications for the use of alternative test methods in
				  accordance with
				  40
				  CFR §
										136.4.
(C) The permittee shall use test methods with detection
				  limits that reflect the applicable numerical limitations as specified in
				  chapter 11-54 and must be sufficiently sensitive as defined at
				  40
				  CFR 122.21(e)(3) and
				  122.44(i)
				  (1) (iv). If the test result is not
				  detectable, indicate that the test result is "less than #," where the # is the
				  lowest detection limit of the test method used.
(5) Recording of Results
The permittee shall comply with section 14(c) of appendix A
				  of chapter 11-55 for each measurement or sample taken under the requirements of
				  this general permit.
(b) Basic Water Quality Criteria and Inspections
(1) The permittee shall not cause or contribute to a
				  violation of the basic water quality criteria as specified in section
				  11-54-4,
(2) The permittee shall inspect the receiving state waters,
				  effluent, and control measures and best management practices at least once per
				  discharge or once daily, if discharge is continuous and duration is longer than
				  one day, to detect violations of and conditions which may cause violations of
				  the basic water quality criteria as specified in section
				  11-54-4.
				  (e.g., the permittee shall look at effluent and receiving state waters for
				  turbidity, color, floating oil and grease, floating debris and scum, materials
				  that will settle, substances that will produce taste in the water or detectable
				  off-flavor in fish, and inspect for items that may be toxic or harmful to human
				  or other life.)
Note: When effluent commingles with offsite water or
				  pollutant sources prior to discharging to the receiving water, in lieu of
				  inspecting the receiving water, inspect the effluent after it exits the site
				  and prior to commingling.
(c) There shall be no visible oil sheen in the
				  effluent.
(d) The permittee shall take all reasonable steps to minimize
				  or prevent any discharge, use, or disposal of sludge or sediments in violation
				  of this general permit or applicable law. Sludge, sediments, or any other
				  material generated by any treatment process must be disposed of in a manner
				  which prevents its entrance into or pollution of any state waters.
				  Additionally, the disposal of such sludge or other material shall be in
				  compliance with 40 CFR Parts 501 and 503.
7. Whole Effluent Toxicity Limitations And Monitoring
				  Requirements
(a) Monitoring Requirements
(1) The permittee shall conduct, or have a contract
				  laboratory conduct, monthly static or flow-through bioassays on composite
				  effluent samples in accordance with the methods described in "Short-term
				  Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters
				  to Freshwater Organisms" (EPA 821/R-02-013, October 2002), and "Short-term
				  Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters
				  to Marine and Estuarine Organisms" (EPA 821/R-02-014, October 2002).
(2) Tests shall be conducted in one hundred per cent effluent
				  for a period of ninety-six hours unless the methods specify a shorter period
				  for a definitive test for a particular species (e.g. forty-eight hours for
ceriodaphnia dubia).
(3) If the permittee uses static tests, the daily renewal
				  solutions shall be fresh twenty-four-hour composite samples. The permittee may
				  conduct tests using locally available species at ambient temperature.
(4) Test results for each species used shall be reported on
				  the permittee's monthly discharge monitoring report form. Results shall be
				  reported as pass or fail from a single-effluent concentration toxicity test at
				  the applicable instream waste concentration (IWC) using the Test of Significant
				  Toxicity (TST) approach.
(5) Effluent dilution water and control water shall be
				  receiving water or lab water, as described in the test methods manual
				  Short-term Methods for Estimating the Chronic Toxicity of Effluents and
				  Receiving Waters to West Coast Marine and Estuarine Organisms
				  (EPA/600/R-95/136, 1995). If the dilution water is different from test organism
				  culture water, then a second control using culture water shall also be
				  used.
(6) If either the reference toxicant or effluent toxicity
				  tests do not meet all test acceptability criteria in the test methods manual,
				  then the Permittee shall re-sample and re-test within 14 calendar days.
(b) Species Selection
(1) The permittee shall select three species for monitoring
				  from the EPA manual identified in section 7(a)(1). The Permittee may use
ceriodaphnia duhia
(life stage - twenty-four hours) in
				  freshwater only. The permittee shall submit the selection to the director for
				  approval within thirty days after receiving written approval from the director
				  to perform chronic toxicity tests.
(2) The permittee shall obtain written approval from the
				  director before changing any of the three selected species after the initial
				  notification.
(3) The permittee shall conduct monitoring, at a minimum, on
				  one of the three selected species each month. The permittee shall rotate the
				  three selected species on a monthly basis.
(c) Chronic WET Permit Limit
All State waters shall be free from chronic toxicity as
				  measured using the toxicity tests listed in HAR, Section
				  11-54-10,
				  or other methods specified by the Director. For this discharge, the
				  determination of "Pass" or "Fail" from a single-effluent concentration chronic
				  toxicity test at the applicable instreara waste concentration (IWC) using the
				  Test of Significant Toxicity (TST) approach described in National Pollutant
				  Discharge Elimination System Test of Significant Toxicity Implementation
				  Document (EPA 833-R-10-003, 2010). For any one chronic toxicity test, the
				  chronic WET permit limit that must be met is rejection of the null hypothesis
				  (Ho):
IWC (100 percent effluent) mean response [LESS THAN]= 0.75 x
				  Control mean response.
An IWC of 100% shall be used.
A test result that rejects this null hypothesis is reported
				  as "Pass" on the DMR form. A test result that does not reject this null
				  hypothesis is reported as "Fail" on the DMR form. To calculate either "Pass" or
				  "Fail", the permittee shall follow the instructions in National Pollutant
				  Discharge Elimination System Test of Significant Toxicity Implementation
				  Document, Appendix A. If a test result is reported as "Fail", then the
				  permittee shall follow 7.(e) Additional Toxicity Testing, of this
				  permit.
(d) Preparation of Initial Investigation Toxicity Reduction
				  Evaluation Workplan
The Permittee shall submit to the director an initial
				  investigation toxicity reduction evaluation workplan (approximately one to two
				  pages) within one hundred twenty days after the issuance date of the notice of
				  general permit coverage, the date the permittee claimed automatic coverage as
				  specified in section
				  11-55-34.09(e)(2),
				  or the date the facility begins operations. This workplan shall describe steps
				  which the permittee intends to follow in the event that toxicity is detected,
				  and should include at a minimum the following information:
(1) Description of the investigation and evaluation
				  techniques that would be used to identify potential causes or sources or both
				  of toxicity, effluent variability, treatment system efficiency;
(2) Description of the facility's method of maximizing
				  in-house treatment efficiency, good housekeeping practices, and a list of all
				  chemicals used in operation of the facility; and
(3) If a toxicity identification evaluation is necessary, who
				  (e.g., contract laboratory, etc.) will conduct the toxicity identification
				  evaluation.
(e) Additional Toxicity Testing
(1) If toxicity is detected, then the permittee shall conduct
				  six additional weekly tests. Effluent sampling for the first test of the six
				  additional tests shall begin within approximately twenty-four hours of receipt
				  of the test results exceeding a toxicity discharge limitation;
(2) However, if implementation of the initial investigation
				  toxicity reduction evaluation workplan indicates the source of toxicity (e.g.,
				  a temporary plant upset, etc.), then the permittee shall conduct only the first
				  test of the six additional tests required above. If toxicity is not detected in
				  this first test, the permittee may return to the normal sampling frequency as
				  specified in Table 34.2. If toxicity is detected in this first test, then
				  section 7(f) of this general permit shall apply,
(3) If toxicity is not detected in any of the six additional
				  tests required above, then the permittee may return to the normal sampling
				  frequency as specified in Table 34.2.
(f) Toxicity Reduction Evaluation/Toxicity Identification
				  Evaluation
(1) If toxicity is detected in any of the six additional
				  tests, then, based on an evaluation of the test results and additional
				  available information, the director may determine that the permittee shall
				  initiate a toxicity reduction evaluation, in accordance with the permittee's
				  initial investigation toxicity reduction evaluation workplan and "Toxicity
				  Reduction Evaluation Guidance for Municipal Wastewater Treatment Plants" (EPA
				  833-B-99-002, 1999). Moreover, the permittee shall develop a detailed toxicity
				  reduction evaluation workplan which includes:
(A) Further actions to investigate and identify the cause(s)
				  of toxicity;
(B) Actions the permittee has taken or will take to mitigate
				  the impact of the discharge, to correct the noncompliance, and to prevent the
				  recurrence of toxicity;
(C) A schedule under which these actions will be implemented;
				  and shall submit this workplan to the director for approval.
(2) As part of this toxicity reduction evaluation process,
				  the permittee may initiate a toxicity identification evaluation using the test
				  methods manuals, EPA/600/6-91/005F (Phase I), EPA/600/R-92/080 (Phase II), and
				  EPA/600/R-92/081 (Phase III), to identify the cause(s) of toxicity.
(3) If a toxicity reduction evaluation/toxicity
				  identification evaluation is initiated prior to completion of the accelerated
				  testing schedule required by section 7(e) of this general permit, then the
				  accelerated testing schedule may be terminated, or used as necessary in
				  performing the toxicity reduction evaluation/toxicity identification
				  evaluation.
(g) Reporting
(1) The permittee shall submit a full report of toxicity test
				  results, including any toxicity testing required by sections 7(e) and 7(f) of
				  this general permit, with the discharge monitoring report for the month in
				  which the toxicity tests are conducted. A full report shall consist of:
				  toxicity test results; dates of sample collection and initiation of each
				  toxicity test; and toxicity discharge limitation. Toxicity test results shall
				  be reported according to the test methods manual chapter on report preparation.
				  If the initial investigation toxicity reduction evaluation workplan is used to
				  determine that additional toxicity testing is unnecessary, these results shall
				  be submitted with the discharge monitoring report for the month in which
				  investigations conducted under the toxicity reduction evaluation workplan
				  occurred.
(2) Within fourteen days of receipt of test results exceeding
				  a toxicity discharge limitation, the permittee shall provide to the director
				  written notification of:
(1) Findings of the toxicity reduction evaluation or other
				  investigation to identify the cause(s) of toxicity;
(2) Actions the permittee has taken or will take, to mitigate
				  the impact of the discharge and to prevent the recurrence of toxicity;
(3) When corrective actions, including a toxicity reduction
				  evaluation, have not been completed, a schedule under which corrective actions
				  will be implemented; or
(4) The reason for not taking corrective action, if no action
				  has been taken.
8. Corrective Action
The permittee shall immediately stop, reduce, or modify the
				  discharge as needed to stop or prevent a violation of the basic water quality
				  criteria as specified in section
				  11-54-4.
9. Reporting Requirements
(a) Reporting of Monitoring Results
(1) The permittee shall report monitoring results on a
				  discharge monitoring report form (EPA No. 3320-1) or other form as specified by
				  the director. The permittee shall submit results of all monitoring required by
				  this general permit in a format that demonstrates compliance with the
				  limitations in Table 34.2 and other requirements of this general permit.
(2) The permittee shall submit monitoring results obtained
				  during the previous calendar month, postmarked or received by the department no
				  later than the twenty-eighth day of the month following the completed reporting
				  period.
(3) The permittee shall also submit the monitoring results
				  with laboratory reports, including quality assurance/quality control data;
				  effluent flow calculations; and any additional treatment strategies to be
				  implemented based on monitoring results,
(4) Should there be no discharges during the monitoring
				  period, the discharge monitoring report form shall so state.
(5) Discharge Monitoring Reports shall be submitted in
				  compliance with Federal eReporting Rule requirements. Permittees shall switch
				  from traditional paper Discharge Monitoring Reporting to electronic reporting
				  upon written notification by the director.
(b) Additional Monitoring by the Permittee
If the permittee monitors any pollutant at location(s)
				  designated herein more frequently than required by this general permit, using
				  approved analytical methods as specified in section 6(a)(4)(B) of this general
				  permit, the permittee shall include the results of this monitoring in the
				  calculation and reporting of the values required in the discharge monitoring
				  report form. The permittee shall also indicate the increased frequency.
(c) Reporting of Noncompliance, Unanticipated Bypass, or
				  Upset
(1) The permittee or its duly authorized representative shall
				  orally report any of the following when the permittee or its duly authorized
				  representative becomes aware of the circumstances:
(A) Violation of an effluent limitation specified in Table
				  34.2 or a basic water quality criteria specified in section 6(b) of this
				  general permit;
(B) Discharge or noncompliance with effluent limitations
				  which may endanger health or the environment; or
(C) Unanticipated bypass or upset.
(2) The permittee shall make oral reports by telephone to the
				  Clean Water Branch at (808) 586-4309 during regular office hours which are
				  Monday through Friday (excluding holidays) from 7:45 a.m. until 4:15 p.m. or
				  the Hawaii State Hospital Operator at (808) 247-2191 outside of regular office
				  hours.
(3) The permittee shall provide a written report within five
				  days of the time the permittee or its duly authorized representative becomes
				  aware of the circumstances. The written report shall include the
				  following:
(A) Description of the noncompliance, unanticipated bypass,
				  or upset and its cause;
(B) Period of noncompliance, unanticipated bypass, or upset
				  including exact dates and times;
(C) Estimated time the noncompliance, unanticipated bypass,
				  or upset is expected to continue if it has not been corrected; and
(D) Steps taken or plans to reduce, eliminate, and prevent
				  reoccurrence of the noncompliance, unanticipated bypass, or upset.
(4) The director may waive the written report on a
				  case-by-case basis if the oral report has been received within twenty-four
				  hours.
(d) Planned Changes
The permittee shall report any planned physical alterations
				  or additions to the permitted facility, not covered by
				  40
				  CFR §
										122.41(1)(1)(i), (ii), and
				  (iii) to the director on a quarterly
				  basis.
(e) Reporting of Chemical Uses
The permittee shall submit to the director by the
				  twenty-eighth of January of each year an annual summary of the quantities of
				  all chemicals (including the material safety data sheet), listed by both
				  chemical and trade names, which are used in ground water treatment and which
				  are discharged.
(f) Schedule of Maintenance
The permittee shall submit a schedule for approval by the
				  director at least fourteen days prior to any maintenance of facilities which
				  might result in exceedance of effluent limitations. The schedule shall include
				  a description of the maintenance and its reason; the period of maintenance,
				  including exact dates and times; and steps taken or planned to reduce,
				  eliminate, and prevent occurrence of noncompliance.
10. Submittal Requirements
(a) The owner or its duly authorized representative shall
				  submit signed copies of monitoring and all other reports required by this
				  general permit to the director at the following address or as otherwise
				  specified:
Director of Health
Clean Water Branch
Environmental Management Division
State Department of Health
P.O. Box 3378
Honolulu, HI 96801-3378
(b) The owner or its duly authorized representative shall
				  include the following certification statement and an original signature on each
				  submittal in accordance with section
				  11-55-34.08(e) or
				  (f):
"I certify under penalty of law that this document and all
				  attachments were prepared under my direction or supervision in accordance with
				  a system designed to assure that qualified personnel properly gather and
				  evaluate the information submitted. Based on my inquiry of the person or
				  persons who manage the system, or those persons directly responsible for
				  gathering the information, the information submitted is, to the best of my
				  knowledge and belief, true, accurate, and complete. I am aware that there are
				  significant penalties for submitting false information, including the
				  possibility of fine and imprisonment for knowing violations."
(c) The owner or its duly authorized representative shall
				  include the notice of general permit coverage file number on each submittal.
				  Failure to provide the assigned notice of general permit coverage file number
				  for this facility on future correspondence or submittals may be a basis for
				  delay of the processing of the document(s).
11. Additional Conditions
The director may impose additional conditions under section
				  11-55-34.09(b).
12. Record Retention
The permittee shall retain all records and information
				  resulting from the monitoring activities required by this general permit
				  including all records of analyses performed and calibration and maintenance of
				  instrumentation for a minimum of five years. This period of retention shall be
				  extended during the course of any unresolved litigation or administrative
				  enforcement action regarding the discharge of pollutants by the permittee or
				  when requested by the director or Regional Administrator.
13. Falsifying Report
Knowingly making any false statement on any report required
				  by this general permit may result in the imposition of criminal penalties as
				  provided for in Section 309 of the Act and in section
				  342D-35,
				  HRS.
14. Renewal
Requests for renewal of general permit coverage must be
				  received no later than 30 calendar days before the expiration of the general
				  permit coverage.
15. Forms
Electronic notice of intent forms may be found at the
				  Department's e-Permitting portal. The e-Permitting portal may be accessed via
				  the Clean Water Branch's website at:
http://health.hawaii.gov/cwb/
TABLE 34.2
EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS FOR
				  DISCHARGE OF TREATED EFFLUENT FROM LEAKING UNDERGROUND STORAGE TANK REMEDIAL
				  ACTIVITIES
Effluent Parameter
Effluent Limitations (1)
Monitoring Requirements
For Saline Water
For Fresh Water
Minimum Frequency
Type of Sample
Flow (GPD)
(2)
(2)
Continuous
Calculated or Estimated
Total Petroleum Hydrocarbons as Gasoline (mg/l)
							 (3)
(2)
(2)
Weekly
Grab
Total Petroleum Hydrocarbons as Diesel (mg/l)
							 (3)
(2)
(2)
Weekly
Grab
Benzene (mg/l) (4)
1.7
1.8
Weekly
Grab
Toluene (mg/l) (4)
2.1
5.8
Weekly
Grab
Xylenes (mg/l) (4)
(2)
(2)
Weekly
Grab
Ethylbenzene (mg/l) (4)
0.14
11
Weekly
Grab
Lead (mg/l) (5)
0.14
0.029
Weekly
Grab
Organic Lead (mg/l) (6)
(2)
(2)
Weekly
Grab
pH (standard units)
(7)
Weekly
Grab (8)
Whole Effluent Toxicity
Pass (9)
Monthly
Composite
Toxic Pollutants mg/l (10)
(11)
Annually
(12)
GPD = gallons per day
mg/l = milligrams per liter
NOTES:
(1) Pollutant concentration levels shall not exceed the
				  effluent limits or be outside the ranges indicated in the table. Actual or
				  measured levels which exceed those effluent limits or are outside those ranges
				  shall be reported to the director as required in section 9(c) of this general
				  permit,
(2) The value shall not exceed the applicable limit as
				  specified in chapter 11-54 for the applicable classification of the receiving
				  state waters. If no limitation is specified in chapter 11-54, then the
				  permittee shall monitor and report the analytical result. The department may
				  include discharge limitations specified in section
				  11-55-19.
(3) The permittee shall use "Test Methods for Evaluating
				  Solid Wastes" (EPA-SW-846-03-03B, November 2004) method 5030/8015 for the
				  measurement of Total Petroleum Hydrocarbons as Gasoline and EPA method
				  3550/8015 shall be used for the measurement of Total Petroleum Hydrocarbons as
				  Diesel.
(4) The permittee shall use "Test Methods for Evaluating
				  Solid Wastes" (EPA-SW-846-03-03B, November 2004), or "Standard Methods for the
				  Examination of Water and Wastewater" (ISBN 0-87553-047-8, 2005;), or EPA
				  methods 5030/8015, or 5030/8021B, or 5030/8260B, or 602, or 624, for the
				  measurement of benzene, ethylbenzene, and toluene. EPA method 8260B, or an
				  equivalent method, shall be used for the measurement of xylenes.
(5) The permittee shall measure for the total recoverable
				  portion of all metals.
(6) The method for measuring for organic lead shall be the
				  one referenced in the State of Hawaii's Technical Guidance Manual for
				  Underground Storage Tank Closure and Release Response (March 2000).
(7) The pH value shall not be outside the range as specified
				  in chapter 11-54 for the applicable classification of the receiving state
				  waters.
(8) The pH shall be measured within fifteen minutes of
				  obtaining the grab sample.
(9) Whole Effluent Toxicity measuring shall be performed in
				  accordance with the provisions of section 7 of this general permit.
(10) The permittee shall measure for toxic pollutants, as
				  identified in Appendix D of 40 CFR Part 122 or in section
				  11-54-4,
				  only if they are identified as potential pollutants requiring monitoring in the
				  notice of intent or as identified by the director. If monitoring results
				  indicate that the discharge limitation was equaled or exceeded, the treatment
				  system operations plan shall be amended to include additional best management
				  practices targeted to reduce the parameter which was in excess of the discharge
				  limitation.
(11) Storm water discharge limitations are the chronic water
				  quality standards established in section
				  11-54-4,
				  for either fresh or saline waters. For pollutants which do not have established
				  chronic water quality standards, the permittee shall report any detected
				  concentration greater than 0.01 µg/l.
(12) The permittee shall measure for cyanide and the volatile
				  fraction of the toxic organic compounds using a grab sample. The permittee
				  shall measure for all other pollutants, as identified in Appendix D of 40 CFR
				  Part 122 or in section
				  11-54-4
				  using a composite sample.
The
				  amended version of this chapter by
				  Hawaii
				  Administrative Rules Listing of Filings, 2021-01, October, eff.
				  10/22/2021 is not
				  yet available.