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[[pp. 17221-17225]] National Pollutant Discharge Elimination System--Proposed Regulations to Establish Requirements for Cooling Water Intake Structures at Phase II Existing Facilities

Note: EPA no longer updates this information, but it may be useful as a reference or resource.


  
[Federal Register: April 9, 2002 (Volume 67, Number 68)]
[Proposed Rules]
[Page 17221-17225]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr09ap02-30]
 
[[pp. 17221-17225]]
National Pollutant Discharge Elimination System--Proposed 
Regulations to Establish Requirements for Cooling Water Intake 
Structures at Phase II Existing Facilities

[[Continued from page 17220]]

[[Page 17221]]

institutional, heating, and/or cooling purposes at one or more host 
facilities.
    Cooling water means water used for contact or noncontact cooling, 
including water used for equipment cooling, evaporative cooling tower 
makeup, and dilution of effluent heat content. The intended use of the 
cooling water is to absorb waste heat rejected from the process or 
processes used, or from auxiliary operations on the facility's 
premises. Cooling water that is used in a manufacturing process either 
before or after it is used for cooling is considered process water for 
the purposes of calculating the percentage of a facility's intake flow 
that is used for cooling purposes in Sec. 125.91(c).
    Diel means sample variation in organismal abundance and density 
over a 24-hour period due to the influence of water movement and 
changes in light intensity.
    Director means the same as defined in 40 CFR 122.2.
    Existing facility means any facility that commenced construction 
before January 17, 2002; and
    (1) Any modification of such a facility;
    (2) Any addition of a unit at such a facility for purposes of the 
same industrial operation;
    (3) Any addition of a unit at such a facility for purposes of a 
different industrial operation, if the additional unit uses an existing 
cooling water intake structure and the design capacity of the intake 
structure is not increased; or
    (4) Any facility constructed in place of such a facility, if the 
newly constructed facility uses an existing cooling water intake 
structure whose design intake flow is not increased to accommodate the 
intake of additional cooling water.
    Once-through cooling water system means a system designed to 
withdraw water from a natural or other water source, use it at the 
facility to support contact and/or noncontact cooling uses, and then 
discharge it to a water body without recirculation. Once-through 
cooling systems sometimes employ canals/channels, ponds, or non-
recirculating cooling towers to dissipate waste heat from the water 
before it is discharged.
    Phase II existing facility means any existing facility that meets 
the criteria specified in Sec. 125.91.


Sec. 125.94  How will requirements reflecting best technology available 
for minimizing adverse environmental impact be established for my Phase 
II existing facility?

    (a) You may choose one of the following three alternatives for 
establishing best technology available for minimizing adverse 
environmental impact at your site:
    (1) You may demonstrate to the Director that your existing design 
and construction technologies, operational measures, and/or restoration 
measures meet the performance standards specified in paragraph (b) of 
this section;
    (2) You may demonstrate to the Director that you have selected 
design and construction technologies, operational measures, and/or 
restoration measures that will, in combination with any existing design 
and construction technologies, operational measures, and/or restoration 
measures, meet the performance standards specified in paragraph (b) of 
this section; or
    (3) You may demonstrate to the Director that a site-specific 
determination of best technology available for minimizing adverse 
environmental impact is appropriate for your site in accordance with 
paragraph (c) of this section.
    (b) Performance Standards. If you choose the alternative in 
paragraphs (a)(1) or (a)(2) of this section, you must meet the 
following performance standards:
    (1) You must reduce your intake capacity to a level commensurate 
with the use of a closed-cycle, recirculating cooling system; or
    (2) You must reduce impingement mortality of all life stages of 
fish and shellfish by

80 to 95 percent from the calculation baseline if your facility has a 
capacity utilization rate less than 15 percent, or your facility's 
design intake flow is 5 percent or less of the mean annual flow from a 
freshwater river or stream; or
    (3) You must reduce impingement mortality of all life stages of 
fish and shellfish by

80 to 95 percent from the calculation baseline, and you must reduce 
entrainment of all life stages of fish and shellfish by 60 to 90 
percent from the calculation baseline if your facility has a capacity 
utilization rate of 15 percent or greater and withdraws cooling water 
from a tidal river or estuary, from an ocean, from one of the Great 
Lakes, or your facility's design intake flow is greater than 5 percent 
of the mean annual flow of a freshwater river or stream; or
    (4) If your facility withdraws cooling water from a lake (other 
than one of the Great Lakes) or reservoir:
    (i) You must reduce impingement mortality of all life stages of 
fish and shellfish by

80 to 95 percent from the calculation baseline; and
    (ii) If you propose to increase your facility's design intake flow, 
your increased flow must not disrupt the natural thermal stratification 
or turnover pattern (where present) of the source water, except in 
cases where the disruption is determined by any Federal, State or 
Tribal fish or wildlife management agency(ies) to be beneficial to the 
management of fisheries.
    (c)(1) Site-Specific Determination of Best Technology Available. If 
you choose the alternative in paragraph (a)(3) of this section, you 
must demonstrate to the Director that your costs of compliance with the 
applicable performance standards in paragraph (b) of this section would 
be significantly greater than the costs considered by the Administrator 
when establishing such performance standards, or that your costs would 
be significantly greater than the benefits of complying with such 
performance standards at your site.
    (2) If data specific to your facility indicate that your costs 
would be significantly greater than those considered by the 
Administrator in establishing the applicable performance standards, the 
Director shall make a site-specific determination of best technology 
available for minimizing adverse environmental impact that is based on 
less costly design and construction technologies, operational measures, 
and/or restoration measures to the extent justified by the 
significantly greater cost. The Director's site-specific determination 
may conclude that design and construction technologies, operational 
measures, and/or restoration measures in addition to those already in 
place are not justified because of significantly greater costs.
    (3) If data specific to your facility indicate that your costs 
would be significantly greater than the benefits of complying with such 
performance standards at your facility, the Director shall make a site-
specific determination of best technology available for minimizing 
adverse environmental impact that is based on less costly design and 
construction technologies, operational measures, and/or restoration 
measures to the extent justified by the significantly greater costs. 
The Director's site-specific determination may conclude that design and 
construction technologies, operational measures, and/or restoration 
measures in addition to those already in place are not justified 
because the costs would be significantly greater than the benefits at 
your facility.
    (d) Restoration Measures. In lieu of, or in combination with, 
reducing impingement mortality and entrainment

[[Page 17222]]

by implementing design and construction technologies or operational 
measures to comply with the performance standards specified in 
paragraph (b) of this section or the Director's determination pursuant 
to paragraph (c) of this section, you may, with the Director's 
approval, employ restoration measures that will result in increases in 
fish and shellfish in the watershed. You must demonstrate to the 
Director that you are maintaining the fish and shellfish within the 
waterbody, including community structure and function, to a level 
comparable to those that would result if you were to employ design and 
construction technologies or operational measures to meet that portion 
of the requirements of paragraphs (b) or (c) of this section that you 
are meeting through restoration. Your demonstration must address 
species that the Director, in consultation with Federal, State, and 
Tribal fish and wildlife management agencies with responsibility for 
fisheries and wildlife potentially affected by your cooling water 
intake structure, identifies as species of concern.
    (e) More Stringent Standards. The Director may establish more 
stringent requirements as best technology available for minimizing 
adverse environmental impact if the Director determines that your 
compliance with the applicable requirements of paragraphs (b) and (c) 
of this section would not meet the requirements of other applicable 
Federal, State, or Tribal law.
    (f) If the Nuclear Regulatory Commission has determined that your 
compliance with this subpart would result in a conflict with a safety 
requirement established by the Commission, the Director shall make a 
site-specific determination of best technology available for minimizing 
adverse environmental impact that is less stringent than the 
requirements of this subpart to the extent necessary for you to comply 
with the Commission's safety requirement.
    (g) You must submit the application information required in 
Sec. 125.95, implement the monitoring requirements specified in 
Sec. 125.96, and implement the record-keeping requirements specified at 
Sec. 125.97.

Sec. 125.95  As an owner or operator of a Phase II existing facility, 
what must I collect and submit when I apply for my reissued NPDES 
permit?

    (a) You must submit to the Director the application information 
required by 40 CFR 122.21(r)(2), (3) and (5) and the Comprehensive 
Demonstration required by paragraph (b) of this section at least 180 
days before your existing permit expires, in accordance with 
Sec. 122.21(d)(2).
    (b) Comprehensive Demonstration Study. All facilities except those 
deemed to have met the performance standards in accordance with 
Sec. 125.94(b)(1), must submit a Comprehensive Demonstration Study 
(Study). This information is required to characterize impingement 
mortality and entrainment, the operation of your cooling water intake 
structures, and to confirm that the technology(ies), operational 
measures, and/or restoration measures you have selected and/or 
implemented at your cooling water intake structure meet the applicable 
requirements of Sec. 125.94. The Comprehensive Demonstration Study must 
include:
    (1) Proposal For Information Collection. You must submit to the 
Director for review and approval a description of the information you 
will use to support your Study. The proposal must include:
    (i) A description of the proposed and/or implemented 
technology(ies), operational measures, and/or restoration measures to 
be evaluated in the Study;
    (ii) A list and description of any historical studies 
characterizing impingement and entrainment and/or the physical and 
biological conditions in the vicinity of the cooling water intake 
structures and their relevance to this proposed Study. If you propose 
to use existing data, you must demonstrate the extent to which the data 
are representative of current conditions and that the data were 
collected using appropriate quality assurance/quality control 
procedures;
    (iii) A summary of any past, ongoing, or voluntary consultation 
with appropriate Federal, State, and Tribal fish and wildlife agencies 
that is relevant to this Study and a copy of written comments received 
as a result of such consultation; and
    (iv) A sampling plan for any new field studies you propose to 
conduct in order to ensure that you have sufficient data to develop a 
scientifically valid estimate of impingement and entrainment at your 
site. The sampling plan must document all methods and quality 
assurance/quality control procedures for sampling and data analysis. 
The sampling and data analysis methods you propose must be appropriate 
for a quantitative survey and include consideration of the methods used 
in other studies performed in the source waterbody. The sampling plan 
must include a description of the study area (including the area of 
influence of the cooling water intake structure), and provide a 
taxonomic identification of the sampled or evaluated biological 
assemblages (including all life stages of fish and shellfish).
    (2) Source Waterbody Flow Information. You must submit to the 
Director the following source waterbody flow information:
    (i) If your cooling water intake structure is located in a 
freshwater river or stream, you must provide the annual mean flow of 
the waterbody and any supporting documentation and engineering 
calculations to support your analysis of which requirements specified 
in Sec. 125.94(b)(2) or (3) would apply to your facility based on its 
water intake flow in proportion to the mean annual flow of the river or 
steam; and
    (ii) If your cooling water intake structure is located in a lake 
(other than one of the Great Lakes) or reservoir and you propose to 
increase your facility's design intake flow, you must provide a 
narrative description of the thermal stratification in the water body, 
and any supporting documentation and engineering calculations to show 
that the natural thermal stratification and turnover pattern will not 
be disrupted by the increased flow in a way that adversely impacts 
water quality or fisheries.
    (3) Impingement Mortality and Entrainment Characterization Study. 
You must submit to the Director an Impingement Mortality and 
Entrainment Characterization Study whose purpose is to provide 
information to support the development of a calculation baseline for 
evaluating impingement mortality and entrainment and to characterize 
current impingement mortality and entrainment. The Impingement 
Mortality and Entrainment Characterization Study must include:
    (i) Taxonomic identifications of those species of fish and 
shellfish and their life stages that are in the vicinity of the cooling 
water intake structure and are most susceptible to impingement and 
entrainment;
    (ii) A characterization of those species of fish and shellfish and 
life stages pursuant to paragraph (b)(3)(i) of this section, including 
a description of the abundance and temporal/spatial characteristics in 
the vicinity of the cooling water intake structure, based on the 
collection of a sufficient number of years of data to characterize 
annual, seasonal, and diel variations in impingement mortality and 
entrainment (e.g., related to climate/weather differences, spawning, 
feeding and water column migration);
    (iii) Documentation of the current impingement mortality and 
entrainment of all life stages of fish and shellfish at

[[Page 17223]]

your facility and an estimate of impingement mortality and entrainment 
under the calculation baseline. The documentation may include 
historical data that are representative of the current operation of 
your facility and of biological conditions at the site. Impingement 
mortality and entrainment samples to support the calculations required 
in paragraph (b)(4)(iii) and (b)(5)(ii) of this section must be 
collected during periods of representative operational flows for the 
cooling water intake structure and the flows associated with the 
samples must be documented;
    (iv) An identification of species that are protected under Federal, 
State, or Tribal law (including threatened or endangered species) that 
might be susceptible to impingement and entrainment by the cooling 
water intake structure(s).
    (4) Design and Construction Technology Plan. If you choose to use 
design and construction technologies or operational measures in whole 
or in part to meet the requirements of Sec. 125.94, you must submit a 
Design and Construction Technology Plan to the Director for review and 
approval. In the plan you must provide the capacity utilization rate 
for your facility and provide supporting data ( including the average 
annual net generation of the facility (in Mwh) measured over a five 
year period (if available) of representative operating conditions and 
the total net capacity of the facility (in MW)) and calculations. The 
plan must explain the technologies and operational measures you have in 
place or have selected to meet the requirements in Sec. 125.94. 
(Examples of potentially appropriate technologies may include, but are 
not limited to, wedgewire screens, fine mesh screens, fish handling and 
return systems, barrier nets, aquatic filter barrier systems, and 
enlargement of the cooling water intake structure opening to reduce 
velocity. Examples of potentially appropriate operational measures may 
include, but are not limited to, seasonal shutdowns or reductions in 
flow, and continuous operations of screens.) The plan must contain the 
following information:
    (i) A narrative description of the design and operation of all 
design and construction technologies or operational measures (existing 
and proposed), including fish handling and return systems, that you 
have in place or will use to meet the requirements to reduce 
impingement mortality of those species expected to be most susceptible 
to impingement, and information that demonstrates the efficacy of the 
technology for those species;
    (ii) A narrative description of the design and operation of all 
design and construction technologies or operational measures (existing 
and proposed) that you have in place or will use to meet the 
requirements to reduce entrainment of those species expected to be the 
most susceptible to entrainment, if applicable, and information that 
demonstrates the efficacy of the technology for those species;
    (iii) Calculations of the reduction in impingement mortality and 
entrainment of all life stages of fish and shellfish that would be 
achieved by the technologies and operational measures you have selected 
based on the Impingement Mortality and Entrainment Characterization 
Study in paragraph (b)(3) of this section. In determining compliance 
with any requirements to reduce impingement mortality or entrainment, 
you must assess the total reduction in impingement mortality and 
entrainment against the calculations baseline determined in paragraph 
(b)(3) of this section. Reductions in impingement mortality and 
entrainment from this calculation baseline as a result of any design 
and construction technologies and operational measures already 
implemented at your facility should be added to the reductions expected 
to be achieved by any additional design and construction technologies 
and operational measures that will be implemented, and any increases in 
fish and shellfish within the waterbody attributable to your 
restoration measures. Facilities that recirculate a portion of their 
flow may take into account the reduction in impingement mortality and 
entrainment associated with the reduction in flow when determining the 
net reduction associated with existing technology and operational 
measures. This estimate must include a site-specific evaluation of the 
suitability of the technology(ies) based on the species that are found 
at the site, and/or operational measures and may be determined based on 
representative studies (i.e., studies that have been conducted at 
cooling water intake structures located in the same waterbody type with 
similar biological characteristics) and/or site-specific technology 
prototype studies;
    (iv) Documentation which demonstrates that the location, design, 
construction, and capacity of the cooling water intake structure 
technologies you have selected reflect best technology available for 
meeting the applicable requirements in Sec. 125.94;
    (v) Design calculations, drawings, and estimates to support the 
descriptions required by paragraphs (b)(4)(ii) and (iii) of this 
section.
    (5) Information to Support Proposed Restoration Measures. If you 
propose to use restoration measures to meet the performance standards 
in Sec. 125.94, you must submit the following information with your 
application for review and approval by the Director:
    (i) A list and narrative description of the restoration measures 
you have selected and propose to implement;
    (ii) A quantification of the combined benefits from implementing 
design and construction technologies, operational measures and/or 
restoration measures and the proportion of the benefits that can be 
attributed to each. This quantification must include: the percent 
reduction in impingement mortality and entrainment that would be 
achieved through the use of any design and construction technologies or 
operational measures that you have selected (i.e., the benefits you 
would achieve through impingement and entrainment reduction); a 
demonstration of the benefits that could be attributed to the 
restoration measures you have selected; and a demonstration that the 
combined benefits of the design and construction technology(ies), 
operational measures, and/or restoration measures will maintain fish 
and shellfish at a level comparable to that which would be achieved 
under Sec. 125.94. If it is not possible to demonstrate quantitatively 
that restoration measures such as creation of new habitats to serve as 
spawning or nursery areas or establishment of riparian buffers will 
achieve comparable performance, you may make a qualitative 
demonstration that such measures will maintain fish and shellfish in 
the waterbody at a level substantially similar to that which would be 
achieved under Sec. 125.94;
    (iii) A plan for implementing and maintaining the efficacy of the 
restoration measures you have selected and supporting documentation to 
show that the restoration measures, or the restoration measures in 
combination with design and construction technology(ies) and 
operational measures, will maintain the fish and shellfish in the 
waterbody, including the community structure and function, to a level 
comparable or substantially similar to that which would be achieved 
through Sec. 125.94(b) or (c);
    (iv) A summary of any past, ongoing, or voluntary consultation with 
appropriate Federal, State, and Tribal fish and wildlife agencies 
regarding the proposed restoration measures that is relevant to this 
Study and a copy of any written comments received as a result of such 
consultation; and

[[Page 17224]]

    (v) Design and engineering calculations, drawings, and maps 
documenting that your proposed restoration measures will meet the 
restoration performance standard at Sec. 125.94(d).
    (6) Information to Support Site-specific Determination of Best 
Technology Available for Minimizing Adverse Environmental Impact. If 
you have chosen to request a site-specific determination of best 
technology available for minimizing adverse environmental impact 
pursuant to Sec. 125.94(c) because of costs significantly greater than 
those EPA considered in establishing the requirements at issue, or 
because costs are significantly greater than the benefits of complying 
with the otherwise applicable requirements of Sec. 125.94(b) and (e) at 
your site, you must provide the following additional information with 
your application for review by the Director:
    (i) Comprehensive Cost Evaluation Study. You must perform and 
submit the results of a Comprehensive Cost Evaluation Study. This 
information is required to document the costs of implementing your 
Design and Construction Plan under Sec. 125.95(b)(4) above and the 
costs of the alternative technologies and operational measures you 
propose to implement at your site. You must submit detailed engineering 
cost estimates to document the costs of implementing the technologies 
or operational measures in your Design and Construction Plan.
    (ii) Valuation of the Monetized Benefits of Reducing Impingement 
and Entrainment. If you are seeking a site-specific determination of 
best technology available for minimizing adverse environmental impact 
because of costs significantly greater than the benefits of complying 
with the otherwise applicable requirements of Sec. 125.94(b) and (e) at 
your site, you must use a comprehensive methodology to fully value the 
impacts of impingement mortality and entrainment at your site and the 
benefits achievable by compliance with the applicable requirements of 
Sec. 125.94. The benefit study must include a description of the 
methodology used, the basis for any assumptions and quantitative 
estimates, and an analysis of the effects of significant sources of 
uncertainty on the results of the study.
    (iii) Site-Specific Technology Plan. Based on the results of the 
Comprehensive Cost Evaluation Study and the valuation of the monetized 
benefits of reducing impingement and entrainment required by paragraphs 
(b)(7))(i) and (ii) of this section, you must submit a Site-Specific 
Technology Plan to the Director for review and approval. The plan must 
contain the following information:
    (A) A narrative description of the design and operation of all 
design and construction technologies and operational measures, and 
restoration measures (existing and proposed) that you have selected in 
accordance with Sec. 125.94(d), and information that demonstrates the 
efficacy of the technology for those species;
    (B) An engineering estimate of the efficacy of the proposed and/or 
implemented technologies or operational measures for reducing 
impingement mortality and entrainment of all life stages of fish and 
shellfish. This estimate must include a site-specific evaluation of the 
suitability of the technologies or operational measures for reducing 
impingement mortality and entrainment based on representative studies 
(e.g., studies that have been conducted at cooling water intake 
structures located in the same waterbody type with similar biological 
characteristics) and/or site-specific technology prototype studies;
    (C) Documentation which demonstrates that the technologies, 
operational measures, or restoration measures selected would reduce 
impingement mortality and entrainment to the extent necessary to 
satisfy the requirements of Sec. 125.94; and
    (D) Design calculations, drawings, and estimates to support the 
descriptions required by paragraphs (b)(6)(iii)(A) and (B) of this 
section.
    (7) Verification Monitoring Plan. You must include in the Study a 
plan to conduct, at a minimum, two years of monitoring to verify the 
full-scale performance of the proposed or implemented technologies, 
operational measures, or restoration measures. The verification study 
must begin once the technologies, operational measures, and restoration 
measures are implemented and continue for a period of time that is 
sufficient to demonstrate that the facility is reducing the level of 
impingement and entrainment to the levels documented pursuant to 
paragraphs (b)(4)(iii), (b)(5)(ii), and/or (b)(6)(iii)(B) of this 
section. The plan must describe the frequency of monitoring and the 
parameters to be monitored and the basis for determining the parameters 
and the frequency and duration for monitoring. The plan must also 
describe the information to be included in a yearly status report to 
the Director. The Director will use the verification monitoring to 
confirm that you are meeting the applicable requirements of 
Sec. 125.94.

Sec. 125.96  As an owner or operator of a Phase II existing facility, 
what monitoring must I perform?

    As an owner or operator of a Phase II existing facility, you must 
perform monitoring as specified by the Director to demonstrate 
compliance with the applicable requirements of Sec. 125.94.

Sec. 125.97  As an owner or operator of a Phase II existing facility, 
what records must I keep and what information must I report?

    As an owner or operator of a Phase II existing facility you are 
required to keep records and report information and data to the 
Director as follows:
    (a) You must keep records of all the data used to complete the 
permit application and show compliance with the requirements of 
Sec. 125.94, any supplemental information developed under Sec. 125.95, 
and any compliance monitoring data conducted under Sec. 125.96, for a 
period of at least three (3) years. The Director may require that these 
records be kept for a longer period.
    (b) You must provide annually to the Director a status report that 
includes appropriate monitoring data as specified by the Director.

Sec. 125.98  As the Director, what must I do to comply with the 
requirements of this subpart?

    (a) Permit Application. As the Director, you must review materials 
submitted by the applicant under 40 CFR 122.21(r) and Sec. 125.95 
before each permit renewal or reissuance.
    (1) After receiving the permit application from the owner or 
operator of a Phase II existing facility, the Director must determine 
which of the standards specified in Sec. 125.94 to apply to the 
facility. In addition, the Director must review materials to determine 
compliance with the applicable standards.
    (2) At each permit renewal, the Director must review the 
application materials and monitoring data to determine whether 
requirements, or additional requirements, for design and construction 
technologies or operational measures should be included in the permit.
    (b) Permitting Requirements. Section 316(b) requirements are 
implemented for a facility through an NPDES permit. As the Director, 
you must consider the information submitted by the Phase II existing 
facility in its permit application, and determine the appropriate 
requirements and conditions to include in the permit based on the 
alternative for establishing best technology available chosen by the 
facility. The following requirements must be included in each permit:

[[Page 17225]]

    (1) Cooling Water Intake Structure Requirements. The permit 
conditions must include the performance standards that implement the 
requirements of Sec. 125.94(b)(2), (3), and (4); Sec. 125.94(c)(1) and 
(2); Sec. 125.94(d); Sec. 125.94(e); and Sec. 125.94(f). In determining 
compliance with the flow requirement in Sec. 125.94(b)(4)(ii), the 
Director must consider anthropogenic factors (those not considered 
``natural'') unrelated to the Phase II existing facility's cooling 
water intake structure that can influence the occurrence and location 
of a thermocline. These include source water inflows, other water 
withdrawals, managed water uses, wastewater discharges, and flow/level 
management practices (e.g., some reservoirs release water from deeper 
bottom layers). The Director must coordinate with appropriate Federal, 
State, or Tribal fish or wildlife agencies to determine if any 
disruption is beneficial to the management of fisheries.
    (i) You must review the Design and Construction Technology Plan 
required in Sec. 125.96(b)(4) to evaluate the suitability and 
feasibility of the technology or operational measures proposed to meet 
the requirements of Sec. 125.94. In each reissued permit, you must 
include a condition requiring the facility to reduce impingement 
mortality and entrainment commensurate with the implementation of the 
technologies in the permit. In considering a permit application, the 
Director must review the performance of the technologies implemented 
and require additional or different design and construction 
technologies, if needed, to meet the impingement mortality and 
entrainment reduction requirements for all life stages of fish and 
shellfish. In addition, you may consider any chemical, water quality, 
and other anthropogenic stresses on the source waterbody in order to 
determine whether more stringent conditions are needed to comply with 
the requirements of other applicable Federal, State, or Tribal law in 
accordance with Sec. 125.94(e).
    (ii) If you determine that restoration measures are appropriate at 
the Phase II existing facility, you must review the Information to 
Support Proposed Restoration Measures required under Sec. 125.95(b)(5) 
and determine whether the proposed measures, alone or in combination 
with design and construction technologies and operational measures, 
will maintain the fish and shellfish in the waterbody at a comparable 
level to that which would be achieved under Sec. 125.94. If the 
application includes a qualitative demonstration for restoration 
measures that will result in increases in fish and shellfish that are 
difficult to quantify, you must determine whether the proposed measures 
will maintain fish and shellfish in the waterbody at a level 
substantially similar to that which would be achieved under 
Sec. 125.94. You must also review and approve the proposed Verification 
Monitoring Plan submitted under Sec. 125.95(b)(7) and require that the 
monitoring continue for a sufficient period of time to demonstrate that 
the restoration measures meet the requirements of Sec. 125.94(d).
    (iii) For a facility that requests requirements based on site-
specific best technology available for minimizing adverse environmental 
impact, you must review the application materials and any other 
information you may have that would be relevant to a determination of 
whether alternative requirements are appropriate for the facility. If 
you determine that alternative requirements are appropriate, you must 
make a site-specific determination of best technology available for 
minimizing adverse environmental impact in accordance with 
Sec. 125.95(c).
    (2) Monitoring Conditions. The permit must require the permittee to 
perform the monitoring required in Sec. 125.96. In determining 
applicable monitoring requirements, the Director must consider the 
facility's verification monitoring plan, as appropriate. You may modify 
the monitoring program when the permit is reissued and during the term 
of the permit based on changes in physical or biological conditions in 
the vicinity of the cooling water intake structure.
    (3) Record Keeping and Reporting. At a minimum, the permit must 
require the permittee to report and keep records as required by 
Sec. 125.97.

[FR Doc. 02-5597 Filed 4-8-02; 8:45 am]
BILLING CODE 6560-50-P 

 
 


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