[Federal Register Volume 65, Number 128 (Monday, July 3, 2000)]
[Proposed Rules]
[Pages 41216-41263]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 00-15914]



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Part III





Environmental Protection Agency





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40 CFR Part 131



Water Quality Standards for Kansas; Proposed Rule

Federal Register / Vol. 65, No. 128 / Monday, July 3, 2000 / Proposed 
Rules

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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 131

[FRL-OW-6721-3]
RIN 2040-ZA00


Water Quality Standards for Kansas

AGENCY: Environmental Protection Agency.

ACTION: Proposed rule.

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SUMMARY: EPA is proposing water quality standards for the State of 
Kansas. If promulgated as final standards, they would supersede aspects 
of Kansas's water quality standards that EPA disapproved in 1998. In 
furtherance of EPA's 1998 disapproval action, EPA is proposing: that 
all discharges to stream segments for which continuous flow is 
sustained primarily through the discharge of treated effluent shall 
protect the States' designated uses; 7Q10, 4B3, or other scientifically 
defensible design flows approved by EPA shall be used to implement the 
State's chronic aquatic life criteria; 1Q10, 1B3, or other 
scientifically defensible design flows approved by EPA shall be used to 
implement the State's acute aquatic life criteria; implementation 
procedures for use when applying the States' antidegradation policy to 
determine whether to allow a lowering of surface water quality by point 
sources of pollution where nonpoint sources also contribute the 
pollutant of concern to that body of water; an aquatic life use for one 
stream segment and a primary contact recreation use for 1,292 stream 
segments and 164 lakes.
    In addition, under its discretionary authority to address State 
standards that the Administrator determines are inconsistent with the 
Clean Water Act, EPA is proposing: that water quality standards in 
Kansas apply to all privately owned surface waters in Kansas that are 
waters of the U.S.; and numeric human health criteria for alpha- and 
beta-endosulfan.

DATES: EPA will accept public comments on this proposed rule until 
September 1, 2000. Comments postmarked after this date may not be 
considered. On July 27, 2000, EPA is holding two public hearings on 
today's proposed water quality standards for Kansas.

ADDRESSES: An original plus 2 copies, and if possible an electronic 
version of comments either in WordPerfect or ASCII format, should be 
addressed to Ann Jacobs at <a href="/cdn-cgi/l/email-protection#442e25272b26376a252a2a042134256a232b32"><span class="__cf_email__" data-cfemail="fe949f9d919c8dd09f9090be9b8e9fd0999188">[email protected]</span></a> or at U.S. EPA Region 
VII, Water Resources Protection Branch, 901 North 5th Street, Kansas 
City, Kansas 66101.
    The public hearings will be held in the Ballroom of the Days Inn at 
914 S.E. Madison in Topeka, Kansas. The first is scheduled for 2:30-
5:30 p.m. (CDT), and the second for 7-9 p.m. (CDT).
    The administrative record for today's proposed rule is available 
for public inspection at EPA Region VII, Regional Records Center, 901 
North 5th Street, Kansas City, Kansas 66101, between 8 a.m. and 4:30 
p.m.

FOR FURTHER INFORMATION CONTACT: Ann Jacobs at <a href="/cdn-cgi/l/email-protection#1973787a767b6a37787777597c6978377e766f"><span class="__cf_email__" data-cfemail="e78d8684888594c9868989a7829786c9808891">[email protected]</span></a> or at 
U.S. EPA Region VII, Water Resources Protection Branch, 901 North 5th 
Street, Kansas City, Kansas 66101 (Telephone: 913-551-7930).

SUPPLEMENTARY INFORMATION:
     

Preamble Outline

I. Potentially Affected Entities
II. Background
    A. What Are the Statutory and Regulatory Requirements that are 
Relevant to this Action?
    B. What Actions Have Kansas and EPA Taken Leading to Today's 
Action?
III. What Disapproved Provisions have been Addressed?
    A. Antidegradation Policy to Protect Outstanding Natural 
Resource Waters
    B. Waste Stabilization Ponds
    C. Disinfection Requirements
    D. Domestic Water Supply Criteria
    E. EPA Review of Kansas' 1994 and 1999 Water Quality Criteria 
for Toxic Pollutants
    F. Antidegradation and Water Quality Standards Implementation 
Procedures
IV. What Federal Water Quality Standards is EPA Proposing in 
Response to Its 1998 Disapproval?
    A. Designated Uses
    1. Background
    2. EPA Review of Kansas' Use Designations
    3. EPA Proposal to Promulgate Federal Designated Uses for 
Specific Stream Segments and Lakes
    a. Expected Aquatic Life
    b. Primary Contact Recreation
    4. Request for Comment and Data
    B. Stream Design Flow
    1. Background
    2. EPA Review of Kansas' Assumed Flow Provision
    3. EPA Proposal to Promulgate Stream Design Flows
    4. Request for Comment and Data
    C. Effluent-Created Habitat
    1. Background
    2. EPA Review of Kansas' Effluent-Created Habitat Provision
    3. Ensuring Discharges to Effluent-Created Habitat Waters 
Protect the Designated Use
    4. Request for Comment and Data
    D. Procedures for Implementing the State's Antidegradation 
Policy
    1. Background
    2. EPA's Review of Kansas' Antidegradation Implementation 
Procedures
    3. EPA Proposal to Promulgate Antidegradation Implementation 
Provisions for Kansas
    4. Request for Comment and Data
V. What Federal Water Quality Standards is EPA Proposing under 
Section 303(c)(4)(B)?
    A. Legal Basis
    B. Water Quality Criteria for Alpha-Endosulfan and Beta-
Endosulfan
    1. Background
    2. Administrator's Findings Regarding Alpha-Endosulfan and Beta-
Endosulfan
    3. Request for Comment and Data
    C. Administrator's Finding Regarding Privately Owned Surface 
Waters
    1. Background
    2. Request for Comment and Data
VI. Economic Analysis
    A. Identifying Affected Facilities
    B. Selecting a Sample
    C. Methodology for Estimating Potential Compliance Costs
    1. Proposed Designated Uses
    2. Proposal Regarding Assumed Flow
    D. Results
    1. Proposed Designated Uses
    2. Proposal Regarding Assumed Flow
    3. Total Statewide Costs
VII. Alternative Regulatory Approaches and Implementation Mechanisms
    A. Designating Uses
    B. Site-Specific Criteria
    C. Variances
    D. Total Maximum Daily Loads (TMDLs)
VIII. Administrative Requirements and Related Government Acts
    A. Executive Order 12866: Regulatory Planning and Review
    B. The Regulatory Flexibility Act (RFA), as amended by the Small 
Business Regulatory Enforcement Fairness Act of 1996 (SBREFA), 5 
U.S.C. 601 et. seq.
    C. The Paperwork Reduction Act
    D. The Unfunded Mandates Reform Act of 1995
    E. Executive Order 13132: Federalism
    F. Executive Order 13084: Consultation and Coordination with 
Indian Tribal Governments
    G. The Endangered Species Act
    H. The National Technology Transfer and Advancement Act
    I. Executive Order 13045: Protection of Children from 
Environmental Health Risks and Safety Risks
    J. Executive Order 12886: Plain Language

I. Potentially Affected Entities

    Citizens concerned with water quality in Kansas may be interested 
in this proposed rulemaking. Entities discharging pollutants to waters 
of the United States in Kansas could be indirectly affected by this 
proposed rulemaking since water quality standards are used in 
determining water quality-based National Pollutant Discharge 
Elimination System (NPDES) permit limits. Categories and entities that 
may indirectly be affected include:

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                                        Examples of potentially affected
               Category                             entities
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Industry..............................  Industries discharging
                                         pollutants to surface waters in
                                         Kansas.
Municipalities........................  Publicly-owned treatment works
                                         discharging pollutants to
                                         surface waters in Kansas.
------------------------------------------------------------------------

This table is not intended to be exhaustive, but rather provides a 
guide for readers regarding NPDES entities likely to be affected by 
this action. This table lists the types of entities that EPA is now 
aware could potentially be affected by this action. Other types of 
entities not listed in this table could also be affected. To determine 
whether your facility may be affected by this action, you should 
carefully examine today's proposed rule. If you have questions 
regarding the applicability of this action to a particular entity, 
consult the person listed in the preceding FOR FURTHER INFORMATION 
CONTACT section.

II. Background

A. What Are the Statutory and Regulatory Requirements That Are Relevant 
to This Action?

    Under section 303(c) of the Clean Water Act (CWA), 33 U.S.C. 
1313(c), States and Tribes are required to develop water quality 
standards for waters of the United States within their jurisdiction. 
Section 303(c) and EPA's implementing regulations at 40 CFR part 131 
require State water quality standards to include the designated use or 
uses to be made of the water, the criteria necessary to protect those 
uses, and an antidegradation policy. States are required to review 
their water quality standards at least once every three years and, if 
appropriate, revise or adopt new standards. 33 U.S.C. 1313(c). States 
are required to submit the results of these triennial reviews to EPA. 
EPA is to approve or disapprove any new or revised standards. States 
may include in their standards policies generally affecting the 
standards' application and implementation. See 40 CFR 131.13. These 
policies are subject to EPA review and approval. See 40 CFR 131.6(f), 
40 CFR 131.13. Section 303(c)(4) of the CWA authorizes EPA to 
promulgate water quality standards when necessary to supersede 
disapproved State water quality standards, or in any case where the 
Administrator determines that new or revised standards are necessary to 
meet the requirements of the CWA.

B. What Actions Have Kansas and EPA Taken Leading to Today's Action?

    On October 31, 1994, Kansas submitted a complete set of water 
quality standards to EPA for review and approval. In a February 19, 
1998, letter from U. Gale Hutton, Region VII Director of the Water, 
Wetlands and Pesticides Division, to Gary R. Mitchell, Secretary of the 
Kansas Department of Health and Environment (KDHE), EPA reviewed and 
approved in part and disapproved in part all of the State's new or 
revised standards. Specifically, EPA's letter of February 19, 1998, 
(hereafter EPA's 1998 disapproval letter or EPA's 1998 action) 
disapproved the following provisions of Kansas' 1994 water quality 
standards:
    <bullet> The State's antidegradation policy to the extent that it 
applied to protections for so-called Tier 3 waters;
    <bullet> Provisions governing discharges from waste stabilization 
ponds;
    <bullet> Disinfection requirements;
    <bullet> Provisions addressing the adoption of water quality 
criteria for the protection of the State's domestic water supply use;
    <bullet> A number of water quality criteria;
    <bullet> The State's water quality standards implementation 
procedures;
    <bullet> The State's antidegradation implementation procedures;
    <bullet> Use designations for 1,485 waters with classified uses;
    <bullet> The State's water quality standards provisions for assumed 
stream design flows in applying water quality criteria; and,
    <bullet> Provisions relating to waters with effluent-created 
habitat.
    In the letter disapproving these provisions, Region VII also stated 
that it was requesting the EPA Administrator to make a determination 
under CWA section 303(c)(4)(B) that an existing provision in the 
State's water quality standards that exempted certain privately owned 
surface waters from the State's water quality standards is inconsistent 
with the CWA to the extent it exempts privately owned surface waters 
that are waters of the United States.
    In June 1999, Kansas completed a triennial review of its water 
quality standards. As part of that review, Kansas adopted revisions to 
the Kansas Administrative Regulations (K.A.R.), Title 28, Article 16, 
on June 29, 1999, including the adoption of new or revised water 
quality standards. These new or revised water quality standards became 
effective under State law on June 30, 1999. (These revisions are 
hereafter referred to as the 1999 revisions to the Kansas water quality 
standards.) Kansas submitted these standards for EPA review and 
approval on August 10, 1999, as required under Federal regulations at 
40 CFR 131.5. In its submission, KDHE corrected several provisions 
disapproved by EPA in its February 1998 disapproval letter to make them 
consistent with the CWA. By letter dated January 19, 2000, EPA Region 
VII approved many of these new or revised portions of the States' water 
quality standards. EPA's approval of these new or revised standards 
eliminated the need for a Federal promulgation to correct many of the 
previously disapproved provisions. These provisions are discussed in 
section III.
    Today's proposal addresses the remaining standards disapproved by 
EPA in its 1998 action by proposing replacement water quality standards 
for the State of Kansas. The proposed regulations are discussed in 
section IV.

III. What Disapproved Provisions Have Been Addressed?

    As discussed in section II. B., Kansas completed its most recent 
triennial review in June 1999 and submitted the resulting new or 
revised water quality standards to EPA for review and approval on 
August 10, 1999. By letter dated January 19, 2000, EPA Region VII 
approved the submission in part and disapproved it in part. Among the 
provisions approved by EPA were new or revised water quality standards 
that addressed provisions previously disapproved by EPA in its 1998 
action. In the case of the standards changes discussed later in this 
section, EPA in its January 19, 2000, letter determined that Kansas 
adopted new or revised standards consistent with the CWA and EPA's 
implementing regulations. Under CWA section 303(c)(4), this action by 
Kansas eliminated the need for EPA to promulgate replacement water 
quality standards addressing these provisions. Therefore, EPA is not 
proposing water quality standards for the following provisions.

A. Antidegradation Policy To Protect Outstanding Natural Resource 
Waters

    The State of Kansas revised portions of its antidegradation 
provisions at K.A.R. 28-16-28c(a) as part of its triennial review in 
1994. In its 1998 action, EPA disapproved a portion of the State's 
antidegradation provisions because the provisions failed to include an 
appropriate level of protection for high quality waters constituting 
outstanding national resource waters (ONRWs) as required by 40 CFR 
131.12(a)(3). This level of protection is commonly referred to as 
``Tier 3.'' The

[[Page 41218]]

State's 1994 submittal included specific revisions to mixing zone 
provisions at K.A.R. 28-16-28c(b)(2)(C)(i) that provided for placement 
of mixing zones in what Kansas identified as its Outstanding Natural 
Resource Waters, allowing a permanent lowering of water quality in at 
least a portion of such waters. This modification to the State 
regulations reduced the level of protection that previously had been 
provided to the State's Outstanding Natural Resource Waters and was not 
consistent with Federal regulations requiring that the water quality of 
ONRWs be maintained and protected.
    EPA's interpretation of the Federal requirements for ONRWs 
emphasizes restriction of new or increased discharges to such waters. 
Although this interpretation of the regulation is not the only means of 
assuring that the water quality will be maintained and protected in 
ONRWs, the new or revised State water quality standards of 1994 
deviated significantly from this level of protection and provided no 
commensurate level of protection. Without providing a level of 
protection equivalent to that provided under 40 CFR 131.12(a)(3), the 
State antidegradation policy was not complete because it did not 
provide for a category of waters where new or increased discharges are 
prohibited. Regardless of whether there are current or future State 
waters designated as ONRWs, the State's water quality standards must 
provide the opportunity for such designation.
    As part of its 1999 revisions to the Kansas water quality 
standards, the State added a fourth level of protection under its 
antidegradation provisions. The States' standards now include a 
definition for outstanding national resource waters, which include 
surface waters or surface water segments of extraordinary recreational 
or ecological significance, and which are to be afforded the highest 
level of water quality protection under the antidegradation provisions. 
Kansas' new or revised water quality standards at K.A.R. 28-16-
28c(a)(3) require maintenance and protection of existing uses and 
existing water quality in these waters with a prohibition against new 
or expanded discharges. In its review of these new or revised 
provisions, EPA determined by letter dated January 19, 2000, that the 
State's 1999 revisions to the water quality standards provide 
protection to high quality waters constituting an outstanding national 
resource as required at 40 CFR 131.12(a)(3). EPA's approval of the 
State's revision eliminated the need for EPA to promulgate Federal 
replacement water quality standards for Tier 3 protection.

B. Waste Stabilization Ponds

    As part of the State's 1994 revision of its water quality 
standards, Kansas adopted a provision at K.A.R. 28-16-28c(d)(3) that 
waived NPDES permitting requirements for determining the reasonable 
potential of certain waste stabilization pond discharges to violate 
water quality standards for ammonia and fecal coliform bacteria. In its 
1998 disapproval letter, EPA stated that this provision circumvented 
the application of water quality standards and would not ensure that 
such discharges meet State water quality standards as required by 40 
CFR 122.44(d).
    In its 1999 revisions to its water quality standards, Kansas 
removed K.A.R. 28-16-28c(d)(3) from the State's water quality standards 
regulations. EPA approved this revision to the State's water quality 
standards on January 19, 2000, eliminating the need for promulgation of 
Federal standards.

C. Disinfection Requirements

    In its February 19, 1998, disapproval letter to KDHE, EPA also 
disapproved revised regulations at K.A.R. 28-16-28c(d)(4), which 
allowed dischargers to avoid disinfection requirements regardless of a 
water body's designation for primary contact recreation. The State's 
regulations at K.A.R. 28-16-28c(d)(4) required disinfection of 
wastewater only if the KDHE determined that such a discharge will 
result in a threat to public health. This provision relied on 
information indicating whether or not the water body is known or likely 
to be used for either primary or secondary recreation, or domestic 
water supply, rather than upon the waterbody's use designation 
specified in the State's water quality standards.
    In its 1998 disapproval of this provision, EPA stated that the need 
for disinfection of wastewater effluent must be a function of the need 
to protect designated uses based on a determination that the discharge 
has a reasonable potential to cause or contribute to an excursion of 
applicable water quality standards, regardless of any demonstration at 
the time of permit issuance regarding whether the public actually 
utilizes that water body for the use or uses designated in the States' 
standards. Because all waters of the State are designated for secondary 
contact recreation by default, implementation of this provision could 
potentially undermine the State's efforts to comply with Federal 
regulations at 40 CFR 122.44(d) in writing limitations for NPDES 
permits that derive from and comply with State water quality standards 
and, specifically, protect designated uses.
    As part of Kansas' 1999 revisions to its water quality standards, 
this provision was revised and moved to K.A.R. 28-16-28e(c)(7)(D). EPA 
approved this revision on January 19, 2000, because it now requires 
disinfection of wastewater where there is a reasonable potential for 
discharges to exceed the applicable criteria supporting the assigned 
recreational use designation. EPA's approval of the 1999 revision to 
the State's water quality standards regarding disinfection requirements 
eliminated the need for promulgation of Federal standards.

D. Domestic Water Supply Criteria

    In its 1998 disapproval, EPA disapproved K.A.R. 28-16-28e(c)(3)(C) 
because it appeared to limit State adoption of water quality criteria 
for the protection of domestic water supplies to levels equivalent to 
the Federally adopted maximum contaminant levels (MCLs) under section 
1412 of the Safe Drinking Water Act (SDWA), 42 U.S.C. 300g-1. EPA was 
concerned that this provision, in appearing to require the adoption of 
criteria equal to MCLs, restricted the State's authority to adopt 
criteria necessary to protect domestic water supplies for pollutants 
for which EPA has not published MCLs, even though EPA has published 
recommended water quality criteria under section 304(a) of the CWA for 
this purpose. A State regulation authorizing the State to adopt 
criteria only for pollutants for which EPA has promulgated MCLs is 
inconsistent with Federal regulations at 40 CFR 131.11(a), which 
requires that States adopt water quality criteria necessary to protect 
the designated uses. Such criteria ``must contain sufficient parameters 
or constituents to protect the designated use.'' K.A.R. 28-16-
28e(c)(3)(C) appeared to restrict the State from meeting this 
requirement, and for that reason EPA disapproved the provision in 1998.
    In response to EPA's 1998 action, KDHE clarified that this 
provision did not limit the State's authority to go beyond the MCLs 
when adopting water quality criteria for its domestic water supply. 
KDHE identified pollutants for which it had adopted numeric water 
quality criteria applicable to the domestic water supply use based on 
EPA's recommended section 304(a) criteria for those pollutants, even 
though EPA had not published MCLs for them under the SDWA. Although 
there continue to be gaps in domestic water

[[Page 41219]]

supply criteria for specific pollutants within the State's standards, 
EPA believes the State demonstrated that EPA's original interpretation 
of this provision was in error. As a result of the State's 
clarification that it has the authority to adopt water quality criteria 
applicable to its domestic water supply use under K.A.R. 28-16-
28e(c)(3)(C) based on EPA's published section 304(a) criteria, EPA 
determined that this provision of the State's water quality standards 
is consistent with the CWA and EPA's implementing regulations. 
Therefore, in its January 19, 2000, letter, EPA withdrew its 1998 
disapproval and approved the provision, thereby eliminating the need 
for a Federal promulgation.

E. EPA Review of Kansas' 1994 and 1999 Water Quality Criteria for Toxic 
Pollutants

a. 1994 Revisions to Kansas Water Quality Standards
    In its 1994 revisions of its water quality standards, Kansas 
adopted numeric water quality criteria for many pollutants for which it 
previously had none. Kansas also revised existing single-value criteria 
to separately address both acute and chronic toxicity. In its 1998 
action, EPA approved 89 separate water quality criteria for toxics for 
the protection of aquatic life and human health adopted by the State as 
fully consistent with the requirements of the CWA and EPA's 
implementing regulations. All of the State-adopted water quality 
criteria approved by EPA in 1998 were equal to or more stringent than 
those Federal criteria previously promulgated by EPA for Kansas under 
the NTR in 1992. (See Enclosure B, Table B., February 19, 1998, letter 
from EPA to the Kansas Department of Health and Environment.) With that 
approval decision, the numeric water quality criteria that EPA had 
promulgated for Kansas for those pollutants as part of the NTR were no 
longer necessary. Therefore, EPA withdrew the Federal criteria (65 FR 
19659, April 12, 2000).
    EPA, in its 1998 action, also disapproved a number of water quality 
criteria for both aquatic life and human health protection that EPA 
determined did not protect the State's designated uses. Of the State-
adopted criteria disapproved by EPA, a large number of the pollutants 
were already addressed by Federally-promulgated criteria in the NTR. 
Because the NTR criteria for these pollutants continue to apply in 
Kansas, no further action by EPA is necessary at this time. In its 1998 
action, EPA also disapproved water quality criteria for pollutants that 
were not included in the 1992 NTR for Kansas. EPA identified these 
pollutants as candidates for future promulgation should the State fail 
to adopt water quality criteria which protect designated uses or to 
provide adequate scientific justification for not having them.
b. 1999 Revisions to the Kansas Water Quality Standards
    On June 29, 1999, the State of Kansas completed another set of 
revisions to its water quality standards regulations and submitted them 
for EPA's review and approval on August 10, 1999. In that action, 
Kansas revised a number of its water quality criteria for both aquatic 
life and human health protection to address criteria previously 
disapproved by EPA in 1998. Many of those revised criteria were 
approved by EPA on January 19, 2000. Where the State adopted water 
quality criteria that are equal to or more stringent than the 
applicable Federal criteria promulgated for Kansas under the NTR, EPA 
withdrew the Federal criteria (65 FR 19659, April 12, 2000). EPA also 
approved water quality criteria adopted by the State in 1999 that were 
less stringent than those Federal criteria promulgated for Kansas in 
the NTR but that were consistent with the Clean Water Act. In a 
separate, upcoming action, EPA will propose to withdraw Kansas from the 
NTR for those pollutants.
    In its 1999 revisions, Kansas also submitted water quality criteria 
for pollutants not included in the NTR for Kansas. Those revised 
criteria were intended to address criteria disapproved by EPA in its 
1998 action. EPA approved the 1999 water quality criteria where EPA 
determined that they were based on scientifically defensible methods 
and protected designated uses. In its January 19, 2000, approval of 
Kansas' 1999 submission of revised water quality standards, EPA 
approved acute and chronic aquatic life quality criteria for nickel and 
zinc; acute aquatic life criteria for silver; human health criteria 
(water and organism) for thallium; and human health criteria (organism 
only) for alpha-and beta-endosulfan. The new or revised water quality 
criteria adopted by Kansas on June 29, 1999, and approved by EPA on 
January 19, 2000, address EPA's disapproval in its 1998 action. 
Therefore, no further action by EPA is necessary for those pollutants.
    Several water quality criteria adopted by the State in 1994 and 
disapproved by EPA in 1998 were not corrected by the State in its 1999 
revisions to its water quality standards. For those pollutants that are 
already subject to Federally promulgated water quality criteria, no 
further EPA action is necessary in response to the 1998 disapproval 
action because Kansas remains in the NTR for those pollutants. In many 
instances, the State withdrew its EPA-disapproved water quality 
criteria as part of its 1999 revisions and replaced State criteria with 
a footnote acknowledging there are Federal criteria in place. Because 
an acknowledgment of existing Federal water quality standards within 
Kansas regulations does not constitute actual adoption of water quality 
criteria by the State, EPA is leaving the existing Federal water 
quality standards in place.
c. EPA Withdrawal of 1998 Disapproval
    In its 1998 review of the 1994 Kansas water quality standards 
revisions, EPA disapproved State water quality criteria for alpha-
endosulfan and beta-endosulfan for the State's Domestic Water Supply 
use as being inconsistent with the requirements of the CWA and EPA's 
implementing regulations. This disapproval was procedurally in error 
however, because the State had not adopted any new or revised criteria 
for the Domestic Water Supply use for those pollutants in 1994 that 
would have triggered EPA's approval or disapproval authority.
d. Water Quality Criteria for Endrin
    In 1994, the State adopted a new criterion for endrin for its 
Domestic Water Supply use, which EPA disapproved in its 1998 action 
under section 303(c)(3). In its 1999 revision, the State removed the 
numeric criterion for endrin altogether. EPA subsequently found that 
its 1998 disapproval of the numeric criterion for endrin had been in 
error. The State's 1994 criterion was consistent with the CWA and was 
based on the drinking water MCL for endrin (and no Kansas NTR value for 
endrin had been promulgated). Therefore, on January 19, 2000, EPA 
withdrew its 1998 disapproval of Kansas's 1994 endrin criterion and 
disapproved the State's 1999 deletion of the endrin criterion. EPA 
disapproved this deletion because it had the effect of leaving the 
State with no criterion for endrin in its Domestic Water Supply use. If 
the State fails to address this deficiency, EPA will propose water 
quality criteria for endrin, in a separate action, at the same time it 
addresses the other provisions EPA disapproved on January 19, 2000.

F. Antidegradation and Water Quality Standards Implementation 
Procedures

    As part of the Kansas' 1994 submission, KDHE submitted procedures 
for the implementation of its

[[Page 41220]]

standards through the development of NPDES permit limitations (Kansas 
Surface Water Quality Implementation Procedures; October, 18, 1994). 
These procedures contain two separate components: procedures for 
implementing the State's antidegradation policy at K.A.R. 28-16-28c(a), 
and procedures governing the implementation of water quality standards, 
e.g., through development of water quality-based effluent limitations 
for NPDES permits.
    In its 1998 action, EPA addressed components of these procedures 
separately based on their distinctly different treatment under Federal 
regulations. Federal regulations at 40 CFR 131.12(a) require that 
States identify methods for implementing the State's antidegradation 
policy. Development of these implementation procedures is not 
discretionary. Section 3 of the State's procedures addressed 
implementation of the State's antidegradation policy. In its 1998 
disapproval of Kansas' October 18, 1994, antidegradation implementation 
procedures, EPA identified three deficiencies with the procedures that 
would lead to the implementation of Kansas' antidegradation policy in a 
manner inconsistent with Federal regulations. These deficiencies were: 
(1) Failure to maintain existing water quality for Tier 3 waters; (2) 
Failure to maintain existing water quality for Tier 2 waters under the 
State's antidegradation provision; and (3) Failure to identify the 
means by which the State would implement its antidegradation policy in 
the context of determining whether to allow a lowering of surface water 
quality by point sources of pollution where nonpoint sources also 
contribute the pollutant of concern to that body of water. The State 
revised it's antidegradation procedures and submitted them to EPA for 
review in 1999. These revised procedures addressed the first two 
disapproved items regarding existing water quality in Tier 3 and Tier 2 
waters, but not the third disapproved item. This last item remains 
disapproved and is addressed in section IV.D.
    The 1994 antidegradation procedures required the protection of 
existing water quality within the State's Outstanding Natural Resource 
Waters, but did not describe the mechanisms or methods by which that 
level of protection was to be implemented. Specifically, the Procedures 
failed to identify how existing water quality in the State's 
Outstanding Natural Resource Waters would be maintained under the 
mixing zone provisions at K.A.R. 28-16-28c(b)(2). The use of mixing 
zones and zones of initial dilution in the State's Outstanding Natural 
Resource Waters allowed for the permanent lowering of existing water 
quality in portions of those waters.
    The State's 1994 Procedures also did not adequately protect high 
quality waters as required under Federal regulations at 40 CFR 
131.12(a)(2) (referred to as ``Tier 2'') and the State provision at 
K.A.R. 28-16-28c(a)(2). The Tier 2 level of protection under the 
Federal antidegradation regulations and the State antidegradation 
policy requires protection of existing water quality unless a lowering 
of water quality is necessary to accommodate important social or 
economic development in the area where the lowering of existing water 
quality occurs. However, the State procedure only addressed the 
protection of existing and designated uses in regulating point sources 
of pollution rather than existing water quality. This is contrary to 
the State provision at K.A.R. 28-16-28c(a)(2) and is also inconsistent 
with 40 CFR 131.12(a)(2).
    As part of its June 29, 1999, revisions to its water quality 
standards, the State revised its antidegradation implementation 
procedures in a manner consistent with revisions to the State's 
antidegradation policy (see section III.A.) to maintain existing water 
quality in Tier 3 waters. Kansas' 1999 revision of its antidegradation 
implementation procedures also adequately addressed the manner in which 
the maintenance of existing water quality is ensured for high quality 
waters (Tier 2). EPA approved these revisions in its January 19, 2000, 
letter. These corrections to the State's Procedures made further 
Federal action to address these two disapproved provisions unnecessary.
    The remaining provisions of the State's 1994 implementation 
procedures addressed implementation of water quality standards. Federal 
regulations at 40 CFR 131.13 address policies generally affecting the 
application and implementation of standards that States may adopt, at 
their discretion. If a State adopts such policies, the regulation 
provides that they are subject to EPA review and approval. In its 1998 
action, EPA disapproved the State's implementation procedures for NPDES 
permits because the procedures did not ensure that permits would derive 
from and comply with the State's water quality standards. Specifically, 
EPA identified the following deficiencies. First, the procedures failed 
to clearly identify how mixing zones were to be limited or sized. 
Second, the procedures addressing whole effluent toxicity (WET) testing 
allowed the use of less sensitive organisms than recommended in the 
testing methodology and did not identify any circumstances when WET 
limitations would be placed in NPDES permits when there was reasonable 
potential to violate the State's narrative water quality criteria. 
Third, the procedures specified a ``lesser level of evaluation'' for 
minor permits than is specified for major permits. Finally, the 
procedures did not include provisions addressing site-specific water 
quality criteria development, the issuance of variances or the manner 
by which the State would measure and evaluate socio-economic impacts.
    In its 1999 revisions to its water quality standards, Kansas 
significantly revised its implementation procedures (Kansas 
Implementation Procedures: Surface Water, June 1, 1999) and corrected 
the deficiencies identified in EPA's 1998 disapproval letter. 
Additionally, the State incorporated its implementation procedures into 
the State's water quality regulations at K.A.R. 28-16-28b(cc). These 
revised implementation procedures, to the extent they addressed water 
quality standards implementation, were reviewed by EPA and approved on 
January 19, 2000.

IV. What Federal Water Quality Standards Is EPA Proposing in 
Response to Its 1998 Disapproval?

A. Designated Uses

1. Background
    Section 101(a)(2) of the CWA establishes as a national goal ``water 
quality which provides for the protection and propagation of fish, 
shellfish, and wildlife and * * * recreation in and on the water,'' 
wherever attainable. This national goal is commonly referred to as the 
``fishable/swimmable'' goal of the CWA. (Hereafter, the fishable/
swimmable goals are referred to as CWA section 101(a) goal uses.) 
Section 303(c)(2)(A) requires State water quality standards to 
``protect the public health and welfare, enhance the quality of water, 
and serve the purposes of this Act.'' EPA's regulations at 40 CFR part 
131 interpret and implement these CWA provisions by requiring that 
water quality standards provide for CWA section 101(a) goal uses unless 
those uses have been shown to be unattainable, effectively creating a 
rebuttable presumption of attainability, i.e., a default designation of 
CWA section 101(a) goal uses should apply. The mechanism in EPA's 
regulations used to rebut this presumption is a use attainability 
analysis.

[[Page 41221]]

    Under 40 CFR 131.10(j), States are required to conduct a use 
attainability analysis (UAA) whenever the State designates or has 
designated uses that do not include the CWA section 101(a) goal uses, 
or when the State wishes to remove CWA section 101(a) goal uses, or 
when it adopts subcategories of uses that require less stringent 
criteria. Uses are considered by EPA to be attainable, at a minimum, if 
the uses can be achieved (1) when effluent limitations under section 
301(b)(1)(A) and (B) and section 306 are imposed on point source 
dischargers, and (2) when cost effective and reasonable best management 
practices are imposed on nonpoint source dischargers. See 40 CFR 
131.10(d). EPA's regulations at 40 CFR 131.10 list grounds upon which 
to base a finding that attaining the designated use is not feasible, as 
long as the designated use is not an existing use. A UAA is defined in 
40 CFR 131.3(g) as a ``structured scientific assessment of the factors 
affecting the attainment of the use which may include physical, 
chemical, biological, and economic factors.'' In a UAA, the physical, 
chemical and biological factors affecting the attainment of a use are 
evaluated through a water body survey and assessment. Guidance on water 
body survey and assessment techniques is contained in the Technical 
Support Manual, Volumes I-III: Water Body Surveys and Assessments for 
Conducting Use Attainability Analyses. Volume I provides information on 
water bodies in general, Volume II contains information on estuarine 
systems and Volume III contains information on lake systems. (Volumes 
I-II, November 1983; Volume III, November 1984). Additional guidance is 
provided in the Water Quality Standards Handbook: Second Edition (EPA-
823-B-94-005, August 1994). Guidance on economic factors affecting the 
attainment of a use is contained in the Interim Economic Guidance for 
Water Quality Standards: Workbook (EPA-823-B-95-002, March 1995).
    As discussed earlier, EPA regulations effectively establish a 
``rebuttable presumption'' that CWA section 101(a) goal uses are 
attainable and therefore should apply to a water body unless it is 
affirmatively demonstrated that such uses are not attainable. EPA 
adopted this approach in order to help achieve the national goal 
articulated by Congress that, ``wherever attainable,'' water quality 
should provide for the ``protection and propagation of fish, shellfish 
and wildlife'' and for ``recreation in and on the water.'' CWA 101(a). 
While facilitating achievement of Congress' goals, the ``rebuttable 
presumption'' approach preserves States' paramount role in establishing 
water quality standards in weighing any available evidence regarding 
the attainable uses of a particular water body. The rebuttable 
presumption approach does not restrict the discretion that States have 
to determine that CWA section 101(a) goal uses are not, in fact, 
attainable in a particular case. Rather, if the water quality goals 
articulated by Congress are not to be met in a particular water body, 
the regulations simply require that such a determination be based upon 
a credible, ``structured scientific assessment'' of use attainability. 
See 40 CFR 131.3(g) (defining use attainability analysis).
    EPA believes that the rebuttable presumption policy reflected in 
these regulations is an essential foundation for effective 
implementation of the CWA as a whole. The ``use'' of a water body is 
the most fundamental articulation of its role in the aquatic and human 
environments, and all of the water quality protections established by 
the CWA follow from the water's designated use. If a use lower than a 
CWA section 101(a) goal use is designated based on inadequate 
information or superficial analysis, water quality-based protections 
that might have enabled the water to achieve the goals articulated by 
Congress in section 101(a) may not be put in place. As a result, the 
true potential of the water body may never be realized, and a resource 
highly valued by Congress and the public may be forever lost.
    EPA seeks, through its oversight under section 303(c) of the Act, 
to ensure that any State's decision to forgo protection of a water 
body's potential to support CWA section 101(a) goal uses results from 
an appropriately ``structured'' analysis of use attainment. Where EPA 
concludes that the State failed to adequately justify a use designation 
lower than a CWA section 101(a) goal use designation, EPA disapproves 
the use designation. In some cases, the State may decide to revise its 
use classifications to protect CWA section 101(a) goal uses. In other 
cases, the State may decide to conduct a more thorough analysis of use 
attainability sufficient to rebut the rebuttable presumption reflected 
in the regulations. Where, however, a State does neither, federally 
promulgated CWA section 101(a) goal uses will ensure the water quality 
goals of the Act are effectively implemented.
2. EPA Review of Kansas' Use Designations
    When Kansas submitted its revised standards to EPA on October 31, 
1994, it also submitted the Kansas Surface Water Register, which 
contains the listing of all streams, lakes and wetlands classified 
under the State's water quality standards, individual water body 
locational data and all designated uses for each stream segment, 
wetland and lake. The Register, adopted by reference at K.A.R. 28-16-
28d(c)(2), greatly expanded the number of streams previously designated 
under the 1985 Kansas standards, dividing each original stream segment 
into multiple parts, with independent designations for each newly 
identified segment. Given both the extensive restructuring of the 
citations for classified stream segments and the creation of the 
Register separate from the K.A.R., EPA treated all of the 1994 use 
designations as new or revised water quality standards subject to EPA 
approval under section 303(c)(3) of the CWA. In the 1994 revision to 
Kansas' water quality standards, the State listed a number of streams 
and lakes that it determined did not support a primary contact 
recreation use or aquatic life protection use, or that were simply 
undesignated because Kansas reported that it had limited or no field 
information to make a CWA section 101(a) goal use designation. In 1998, 
of these waters, EPA disapproved nine water body designations because 
it determined that the use attainability analyses submitted by Kansas 
were inadequate, and it disapproved one water body designation for 
which the State failed to submit a use attainability analysis to 
justify the omission of the CWA section 101(a) goal uses. EPA also 
disapproved Kansas' failure to designate any uses at all for another 
1,475 waters.
    Since the early 1980's, EPA has identified the State's lack of 
justification for waters not designated with section 101(a) goal uses, 
particularly primary contact recreation, as a significant issue that 
must be addressed. EPA approved the 1985 revisions to the Kansas water 
quality standards on June 19, 1986, based on ``completion of the 
statewide use attainability analyses in accordance with the KDHE 
schedule submitted to EPA, dated May 2, 1986.'' These analyses were to 
address all surface waters that the State did not designate for primary 
contact recreational use. The schedule of planned use attainability 
analyses submitted by KDHE and accepted by EPA provided for completion 
of this task by 1991. Kansas has performed a number of use 
attainability analyses since the adoption

[[Page 41222]]

of the 1994 Water Quality Standards. As part of its 1998 approval 
action, EPA approved over 300 revised use designations as a result of 
those use attainability analyses that were submitted. However, Kansas 
did not include supporting use attainability analyses for all the 
surface waters that the State did not designate for primary contact 
recreation. EPA therefore disapproved those use designations as being 
inconsistent with 40 CFR 131.10(g).
3. EPA Proposal To Promulgate Federal Designated Uses for Specific 
Stream Segments and Lakes
    Subsequently, in 1999, Kansas adopted, and submitted to EPA, use 
designations consistent with the CWA and EPA's implementing regulations 
for two streams and 14 lakes for which EPA had previously disapproved 
use designations. On January 19, 2000, EPA approved these revised use 
designations. Kansas also identified in its 1999 submittal, and EPA 
approved on January 19, 2000, the deletion of seven water bodies due to 
errors in their original identification. EPA also identified, in its 
January 2000 letter, one stream segment in Kansas that is located 
totally within Indian country, over which Kansas has not demonstrated 
jurisdiction for CWA purposes. In preparing today's proposed 
rulemaking, EPA also identified four waterbodies the Agency 
inadvertently counted twice in its 1998 disapproval action. 
Accordingly, in today's action, EPA is proposing to promulgate primary 
contact use designations for 1,456 stream segments and lakes and the 
State's expected aquatic life use designation for one stream segment.
    When proposing replacement Federal water quality standards, EPA 
must follow the same rebuttable presumption approach that applies under 
the regulation to State decision-making (40 CFR 131.22). EPA does not 
believe it would be appropriate to alter the current approach to 
establishing use designations under 40 CFR part 131 merely because the 
forum for decision-making has changed from the State to the Federal 
level. Attaining the goals articulated by Congress is no less important 
when EPA, as opposed to a State, is making use designation 
determinations. Moreover, EPA believes that failure to apply the 
rebuttable presumption in the Federal context could undermine how that 
presumption currently applies to State decision-making under the 
Federal regulations. If the presumption did not apply equally in the 
State and Federal decision-making process, a State could effectively 
shift the burden of demonstrating attainability simply by failing to 
adequately justify its use designation and thereby triggering a Federal 
rulemaking proceeding.
    EPA's approach in this proposed rulemaking does not undermine the 
State's primary role in designating uses for waters in Kansas. If, 
prior to EPA finalizing this rule, the State undertakes a sound 
analysis of use attainability for the waters subject to this proposal 
that takes into account appropriate biological, chemical and physical 
factors, and concludes that the CWA section 101(a) goal uses are not 
attainable for these waters, EPA would approve the State's action and 
would not promulgate CWA section 101(a) goal use designations for those 
waters. EPA is soliciting public comment and information on the 
attainability of the proposed Federal uses for the water bodies listed 
in proposed 40 CFR 131.34 (g) and (h). EPA also encourages the State to 
continue evaluating the appropriate use designations for these waters. 
The State of Kansas has performed a number of use attainability 
analyses (UAAs) since the adoption of the 1994 Water Quality Standards. 
As part of the 1998 approval action, EPA approved over 300 revised use 
designations as a result of those UAAs submitted to EPA. As part of the 
State's commitment to review uses, Kansas is updating and standardizing 
the protocols for performing UAAs through a public process. Four public 
forums were held by the State to present the revised UAA protocols to 
the public. Improvements to the State's methods of performing use 
attainability analyses also implements recommendations made by the 
Kansas Special Commission of Water Quality Standards. Kansas expects to 
complete this process in the Summer of 2000. EPA will review any future 
UAAs submitted by the State with the same level of rigor as it has 
reviewed previous UAAs submitted by the State. EPA's proposal of 
designated uses based on the rebuttable presumption does not affect the 
substance of EPA's review of State UAAs. If further data indicates that 
this presumption is not appropriate for particular water bodies, EPA's 
final rule will be revised accordingly. In particular, if EPA 
determines, based on the record, that any of Kansas' designations are 
justified, there will be no need for Federally promulgated use 
designations for those particular water bodies. EPA believes that this 
approach is reasonable because it is consistent with the goals in 
section 101(a)(2) of the CWA and the implementing regulations at 40 CFR 
part 131.
    Kansas' use classification system includes a variety of designated 
uses for its waters, including ``domestic water supply,'' 
``agricultural water supply,'' ``special aquatic life,'' ``expected 
aquatic life,'' ``restricted aquatic life,'' ``primary contact 
recreation,'' and ``food procurement.'' Kansas water quality standards 
identify three subcategories of aquatic life uses for Kansas' surface 
waters: Special aquatic life use waters, expected aquatic life use 
waters, and restricted aquatic life use waters. The Kansas water 
quality standards define ``expected aquatic life use waters'' as 
``surface waters containing habitat types and indigenous biota commonly 
found or expected in the State.'' Further, the Kansas Surface Water 
Register includes the expected aquatic life use designation for the 
majority of surface waters in the State. EPA's approach in proposing 
designated uses for 1,457 of the water bodies is to select uses from 
Kansas' system that correspond to CWA section 101(a) goal uses. This 
approach meets the requirements of the CWA while deferring to the 
State's approach for defining 101(a) goal uses.

a. Expected Aquatic Life

    EPA is proposing to promulgate an aquatic life use designation for 
one stream segment, Whiskey Creek, that the State designated for a 
restricted aquatic life use in 1994 without a supporting UAA. 
Subsequently, the State submitted a UAA documenting its designation 
decision for Whiskey Creek on December 23, 1997. The basis for this 
designation was the State's determination that poor water quality, 
associated with the discharge from a wastewater treatment facility, 
limited the attainment of an expected aquatic life use. The State's 
determination was not consistent with Federal regulations at 40 CFR 
131.10, which require that at least one of six reasons be met to 
justify uses less than CWA section 101(a) uses or downgrades in 
designated uses. The reason supplied by Kansas was not one of the six 
possible bases specified in the regulation. Therefore, EPA disapproved 
Kansas' use designation for Whiskey Creek in 1998.
    Because the State assigns the expected aquatic life use category to 
a majority of its surface waters, and there is no information to 
indicate that Whiskey Creek contains other than common habitat types 
and indigenous biota, EPA believes that an expected aquatic life use 
designation is appropriate for aquatic life in Whiskey Creek. 
Therefore, EPA proposes to designate Whiskey Creek for expected aquatic 
life.

[[Page 41223]]

This water is identified in proposed 131.34 (g).

b. Primary Contact Recreation

    EPA is proposing to promulgate primary contact recreation use 
designations for 1,456 waters in Kansas. In its 1998 action, EPA 
disapproved the absence of a primary contact recreation use designation 
for 1,484 water bodies. Of these waters, EPA disapproved nine water 
bodies' use designations because of inadequate use attainability 
analyses. For the remainder, which under Kansas' water quality 
standards received default protection for secondary contact 
recreational use, see K.A.R. 28-16-28d(c)(1), the State provided no 
documentation regarding the absence of a primary contact recreation 
use. Therefore, EPA proposes to promulgate primary contact recreation 
use designations for 1,456 waters in Kansas. These waters are 
identified in proposed 40 CFR 131.34(h).
    The designation of primary contact recreation uses in this proposed 
rule is not intended to apply to waters within Indian country. The 1999 
Kansas Surface Water Register includes some stream segments that may be 
located wholly or partly in Indian country. EPA approval of designated 
uses for waters in Kansas has never been intended to apply to any 
waters located within Indian country because EPA has not analyzed or 
approved the State's authority to adopt water quality standards for 
waters in Indian country. In its January 19, 2000, letter, EPA 
recommended that the State clarify this matter by amending the Kansas 
Surface Water Register to specify that the State's water quality 
standards do not apply to any portions of waters located in Indian 
country. EPA is working with Tribes in Region VII to identify those 
Tribes that may consider seeking authorization to administer the water 
quality standards program under the CWA. That effort is part of a 
national effort to ensure there are water quality standards for Indian 
Country waters.
4. Request for Comment and Data
    EPA believes the proposed designated uses in today's rule are 
appropriate considering the requirements of the CWA and EPA's 
implementing regulations and the absence of data and information 
supporting the State's designation of less stringent uses. EPA solicits 
any additional data and information that may further support or refute 
the attainability of today's proposed designated uses. The Agency will 
evaluate any data and information submitted to EPA by the close of the 
public comment period with regard to designating uses for these 1,457 
stream segments and lakes. After full consideration of such 
information, EPA will make a final decision whether the designated uses 
in today's proposal are appropriate. To assist commenters, the 
following paragraphs provide guidance on the type of information EPA 
considers to be most important.
    EPA is seeking information that would assist in determining for 
each of the waters identified in proposed 40 CFR 131.34(g) and (h) 
whether the proposed designated uses are currently being attained or 
have been attained since November 28, 1975; whether natural conditions 
or features or human-caused conditions prevent the attainment of these 
uses and whether these conditions can or cannot be remedied or would 
cause more environmental damage to correct than to leave in place; and 
whether controls more stringent than those required by sections 301(b) 
and 306 of the CWA would be needed to attain the uses, and, if imposed, 
whether they would result in substantial and widespread social and 
economic impact to the community. A general discussion of the types of 
data/information requested by the Agency follows.
    Ambient Monitoring Information: (1) Any in-stream data for any of 
the stream segments listed in 40 CFR 131.34 (g) and (h) reflecting 
either natural conditions (e.g., in-stream flow data or other data 
relating to stream hydrology) or irretrievable human-caused conditions 
that cannot be remedied and that prevent the uses or water quality 
criteria from being attained; (2) any available in-stream biological 
data; (3) any chemical and biological monitoring data that verify 
improvements to water quality as a result of treatment plant/facility 
upgrades and/or expansions; and (4) any in-stream data reflecting 
nonpoint sources of pollution or best management practices that have 
been implemented for nonpoint source control.
    Current and Historical Effluent Data: (1) Any data and information 
relating to mass loadings from point source discharges of pollutants 
such as BOD, NH<INF>3</INF> -N, chlorine, metals (e.g., arsenic, 
cadmium, chromium, copper, lead, mercury, nickel, silver, zinc), other 
toxics (e.g., volatile organic chemicals such as benzene or toluene, 
acid extractables such as pentachlorophenol, base neutrals such as 
anthracene, fluorine or pyrene, and pesticides such as aldrin, lindane, 
DDT, dieldrin, endrin and toxaphene); (2) data and information related 
to facility or treatment plant effluent quality; and (3) any 
information related to releases of pollutants from other sources such 
as landfills, transportation facilities, construction sites, 
agriculture/silviculture, incinerators, and contaminated sediments.
    Water Quality Modeling Information: (1) Any data or information on 
analytical models that can be used to evaluate or predict stream 
quality, flow, morphology; (2) any physical, biological or chemical 
characteristics relating to designated uses; and (3) the results of any 
such models that can be used to evaluate the attainment of designated 
uses.
    Economic Data: any information relating to costs and benefits 
associated with or incurred as a result of facility or treatment plant 
expansions or upgrades. This information includes: (1) Qualitative 
descriptions or quantitative estimates of any costs and benefits 
associated with facility or treatment plant expansions or upgrades, or 
associated with facilities or treatment plants meeting limits; (2) any 
information on costs to households in the community with facility or 
treatment plant expansions or upgrades, whether through an increase in 
user fees, an increase in taxes, or a combination of both; (3) 
descriptions of the geographical area affected; (4) any changes in 
median household income, employment, and overall net debt as a percent 
of full market value of taxable property; and (5) any effects of 
changes in tax revenues if the private-sector entity were to go out of 
business, including changes in income to the community if workers lose 
their jobs, and effects on other businesses both directly and 
indirectly influenced by the continued operation of the private sector 
entity.

B. Stream Design Flow

1. Background
    The 1985 Kansas water quality standards at K.A.R. 28-16-28c(c)(1) 
specified conditions for the application of numeric water quality 
criteria to State waters, including stream flows below which numeric 
criteria did not apply (i.e., the 7Q10 or 1 cubic foot per second 
(cfs)). The 1985 provisions at K.A.R. 28-16-28c(b), describing the 
allocation of dilution for discharges to classified streams based on 
the use of mixing zones, did not specify a stream design flow. 
Revisions to the 1985 Kansas water quality standards at K.A.R. 28-16-
28c(c)(1) in 1994 introduced a stream design flow of an ``assumed 
7Q10'' in addition to a ``measured 7Q10,'' defining the stream flow 
below which numeric criteria do not apply. Under the 1994 revisions, an 
``assumed 7Q10'' of either 1 cfs or 0.1 cfs

[[Page 41224]]

(depending upon the particular aquatic life use designation of that 
stream segment) would serve as the low flow cut-off if the ``measured 
7Q10'' was below one of those values. Exceptional State waters and 
special aquatic life use waters are afforded 0.1 cfs for assumed 
dilution, whereas expected aquatic life use waters and restricted 
aquatic life use waters are afforded 1 cfs for assumed dilution. In its 
1994 revisions to the mixing zone provisions at K.A.R. 28-16-28c(b), 
the State also explicitly included the concept of either the ``measured 
7Q10'' or the ``assumed 7Q10'' flow in its calculation of the mixing 
zone cross-sectional area and, therefore, the dilution available to 
meet the applicable criteria. In disapproving these provisions in 1998, 
EPA pointed out that implementation of this provision could authorize 
water quality based effluent limits (WQBELs) that would cause 
exceedences of numeric water quality criteria beyond the mixing zone 
and would fail to protect the designated uses of the water body.
    For example, under K.A.R. 28-16-28e(c)(2)(F), the State applies its 
acute and chronic numeric water quality criteria for protecting aquatic 
life outside the zone of initial dilution and beyond the mixing zone, 
respectively. In this manner, toxicity within the waters of the State 
is prevented. Under other provisions at K.A.R. 28-16-28e(c)(4) and (7), 
State standards specify numeric criteria for protecting food 
procurement and recreational uses, respectively, beyond the mixing 
zone. K.A.R. 28-16-28c(b) specifies the dimension of the allowed mixing 
zone based on the designated use of the water body and the ratio of the 
receiving stream 7Q10 flow to the discharge design flow. In the 
calculation of the specific mixing zone cross-sectional area or 
volumetric flow, the State standards regulation provides for the use of 
either the 7Q10 flow or an assumed flow.
    Reliance on an ``assumed flow'' provides for dilution which does 
not exist and will result in the criteria being exceeded more often 
than once in three years as specified in the State's numeric criteria 
for chronic protection. The 1999 State standards at K.A.R. 28-16-
28b(lll) implement the acute aquatic life criteria by defining the size 
or volume of the allowed zone of initial dilution in terms of the 
allowed mixing zone (i.e., no more than 10% of the mixing zone). 
Calculating a mixing zone cross-sectional area that allows for an 
assumed flow is not scientifically defensible because it relies on flow 
that, at times, does not exist. EPA recommends a 1B3 or 1Q10 design 
flow for acute aquatic life protection, and harmonic mean flow for 
human health protection including recreational uses. EPA believes that 
the State's use of a 7Q10 design flow for implementation of human 
health is protective of the corresponding designated uses. Therefore, 
EPA is only proposing to promulgate design flows for the protection of 
acute and chronic aquatic life.
    In August 1999, KDHE submitted water quality standards revisions 
for EPA review and approval that included revisions to K.A.R. 28-16-
28c(b)(2)(D) and (c)(1). These new or revised provisions were relocated 
to K.A.R. 28-16-28c(b)(7) and (b)(8), subsection (A) through (D) 
without being substantially revised. The provisions disapproved by EPA 
in its 1998 action regarding assumed low flow remained. In EPA's 
January 19, 2000, approval/disapproval letter, EPA informed the State 
that the revised provisions at K.A.R. 28-16-28c(b)(7) and (b)(8) remain 
disapproved consistent with EPA's 1998 disapproval decision.
2. EPA Review of Kansas' Assumed Flow Provision
    Kansas' water quality criteria are derived from EPA's recommended 
304(a) water quality criteria which are designed around specific 
assumptions regarding magnitude of exposure, duration of exposure and 
the frequency these parameters may be exceeded and still protect the 
designated use. These parameters are based on the toxicological studies 
supporting the criteria. These toxicological assumptions are matched to 
biologically-based stream design flows to ensure that the probabilities 
of occurrence for both pollutant concentrations and stream flow are 
protective of aquatic life. Simply put, the water quality criteria 
relied upon to protect designated uses are inseparable from the stream 
design flow assumptions through which they are implemented. EPA 
guidance in the 1994 Water Quality Standards Handbook and the 1991 
Technical Support Document for Water Quality-based Toxics Control 
identify the stream flows that match the aquatic life criterion 
continuous concentration (CCC, or chronic criteria) and the criterion 
maximum concentration (CMC, or acute criteria) as the biologically-
based 4B3 and 1B3, respectively. These statistically derived flows 
match the averaging periods and recurrence frequency specified in the 
State's water quality criteria. Although EPA recommends the use of 
biologically-based flows in implementing water quality criteria, there 
are alternative approaches. Most States routinely rely on 
hydrologically-based flows derived using the Log Pearson 3 method 
generated by the U.S. Geological Survey, to implement water quality 
criteria. EPA guidance evaluated the compatibility of using ``extreme 
value statistic flows'' (e.g., 7Q10) for the implementation of water 
quality criteria for the protection of aquatic life (Technical Guidance 
Manual for Performing Waste Load Allocations, Book VI, Design 
Conditions: Chapter 1--Stream Design Flow for Steady-state Modeling. 
August 1986). EPA determined that, for most waters and in most 
instances, the use of 7Q10 and 1Q10 hydrologically-based stream design 
flows for the implementation of chronic and acute water quality 
criteria, respectively, provides a level of protection commensurate 
with EPA's recommended biologically-based flows. That is, 7Q10 equates 
to the 4B3 and 1Q10 equates to the 1B3. States may select other design 
flows based on a demonstration that such alternative flows are 
protective of the specified designated uses. Also, States are 
encouraged to use dynamic modeling as a scientifically defensible 
alternative to extreme flow statistics.
    Many Kansas streams possess 7Q10 flows of zero, particularly 
western streams that are already stressed by excessive surface and 
ground water withdrawals. Small, low flow headwater streams that serve 
as critical habitat for many threatened and endangered aquatic species 
may receive toxic loadings of pollutants as a result of the 
implementation of this provision because discharge limits would be 
based on flow that is not there. K.A.R. 28-16-28d(b)(1) applied water 
quality standards to those streams with mean summer base flows 
exceeding 0.1 cfs and those with less flow but with adequate pooling 
that serve as refuge for aquatic life during intermittent flow. Base 
flow is specifically defined in State standards to include sources of 
flow other than precipitation or ground water (e.g., effluent discharge 
and irrigation return flow). Many streams classified for designated 
uses under this provision (i.e., streams with mean summer base flows 
greater than 0.1 cfs) nevertheless have 7Q10 flows of less than 1 or 
0.1 cfs. In such instances, Kansas' standards allow a classified stream 
to receive discharges that rely on dilution to comply with State 
standards, even though the dilution does not exist. This will result in 
ambient pollutant concentration exceeding the criteria value more often 
than once every three years as specified in the State's numeric aquatic 
life criteria.

[[Page 41225]]

    EPA expects that the scientific defensibility of alternate flows 
would be dependent upon pollutant-specific or site-specific 
circumstances such as watershed size and characteristic hydrography. 
EPA believes that Kansas' implementation of these assumed flows is not 
scientifically defensible or protective of the State's designated 
aquatic life use, as required by the Clean Water Act and EPA's 
implementing regulations.
    KDHE has not provided any scientific rationale for the use of 
assumed flows or provided any data suggesting that this provision will 
sufficiently protect the designated aquatic life uses. EPA's 
regulations at 40 CFR 131.21(a)(2) require that new or revised 
standards be accompanied by supporting analyses. KDHE noted in its 
``Response to Comments Concerning Proposed K.A.R.''s 28-16-28 b through 
f'' (June 23, 1994) that default low flows are employed in other 
States, that they are necessary because of the paucity of flow data in 
small watersheds, and that some form of this provision has been 
employed by Kansas for twenty years. Although these are valid points, 
they are not compelling reasons to approve State provisions that do not 
ensure the protection of the designated uses of Kansas' surface waters. 
As EPA's 1994 Water Quality Standards Handbook (EPA-823-B-94-005a) 
specifically states, ``[The fact that] many streams within a state have 
no flow at 7Q10 is not adequate justification for designating 
alternative flows.'' Because Kansas failed to adequately justify its 
alternative stream flow provisions, EPA, in its 1998 action, 
disapproved the standards provisions under K.A.R. 28-16-28c(b)(2)(D) 
and (c)(1) that reference assumed flows.
    The State, in a February 26, 1999, letter to EPA and in its draft 
1999 implementation procedures, noted that the primary purpose of the 
alternate flow approach is to provide economic relief for ``small 
communities [that] will face costly upgrades or construction of 
completely new treatment systems if permit limits are made more 
stringent.'' KDHE further stated in the letter to EPA that ``[T]he 
environmental benefit is small compared to the large and widespread 
costs associated with the removal of the minimum default flows.'' 
Although these potential impacts are of concern, the CWA and EPA's 
implementing regulations do not allow considerations of costs and 
benefits in establishing water quality criteria (design flows are a 
component of the criteria). Under Federal regulations, economic impacts 
associated with standards should be taken into account when assessing 
the attainability of designated uses and granting temporary variances 
to water quality standards. 40 CFR 131.10(g). It is permissible for the 
State to grant individual variances or to downgrade a designated use 
for a specific water body relying on economic data, but relying on 
dilution that is not available to violate the State's numeric criteria 
is not scientifically defensible. In section V, EPA discusses its 
analysis of the potential economic impacts associated with today's 
proposed standards.
3. EPA Proposal To Promulgate Stream Design Flows
    In today's action, EPA is proposing the 7Q10 or 4B3 stream design 
flows for the implementation of chronic aquatic life criteria in 
Kansas. Additionally, EPA is proposing the 1Q10 or 1B3 design flow for 
the implementation of acute aquatic life criteria in Kansas. Kansas may 
submit to EPA alternate low flows for implementing criteria. Such 
alternative flows must be scientifically defensible, protective of the 
designated use, and approved by EPA before they can be used by the 
State.
4. Request for Comment and Data
    EPA solicits any additional data and information that may further 
support or refute the attainability of the changes being proposed 
today. The Agency will evaluate any data and information submitted to 
EPA by the close of the public comment period. EPA will consider all 
available information and make a final decision on the appropriateness 
of today's proposed changes.

C. Effluent-Created Habitat

1. Background
    Another regulation submitted to EPA by Kansas in 1994, K.A.R. 28-
16-28c(c)(3), addressed those streams where designated uses are not 
attainable because of inadequate stream flow. Under the State's 
provision, if continuous flow in a stream is sustained primarily 
through the discharge of treated effluent, and all designated uses are 
otherwise unattainable due to low or nonexisting flow, then the 
discharger shall not be required to provide treatment beyond that 
required by technology-based effluent limitations imposed under Federal 
law. That exemption would not apply, however, if the resulting effluent 
would result in violations of the State's narrative water quality 
criteria or in an impairment of any of the existing or designated uses 
of a downstream classified surface water segment. In other words, this 
provision exempts dischargers from having to meet water quality-based 
effluent limitations derived from numeric water quality criteria 
adopted to protect the designated uses.
2. EPA Review of Kansas' Effluent-Created Habitat Provision
    Implementation of K.A.R. 28-16-28c(c)(3) would result in State 
NPDES permits that cause or contribute to excursions above State water 
quality standards (i.e., numeric criteria) prohibited by 40 CFR 
122.44(d). Further, this reduced level of protection achieved through 
the NPDES permit is in effect a lowering of the designated use based on 
the State's determination that stream flow was inadequate. Not only has 
the State failed to submit a UAA to justify the implicit use downgrade, 
but, if Kansas had done so, such an approach would clearly be 
inconsistent with 40 CFR 131.10(g)(2). EPA's regulation specifically 
prohibits the removal or down-grading of a designated use based on 
inadequate flow where ``* * * these conditions may be compensated for 
by the discharge of sufficient volume of effluent discharges * * *to 
enable uses to be met.'' 40 CFR 131.10(g)(2).
    EPA previously informed the State of the basis for its position in 
letters dated May 13, 1993, to Dr. Hammerschmidt, Deputy Director, 
Division of Environment, KDHE, and May 24, 1994, to Mark Bradbury, 
District Environmental Administrator, KDHE, which were entered into the 
record at the public hearings held by KDHE during its standards 
adoption. EPA disapproved this provision in its 1998 action. In its 
disapproval letter to the State, EPA stated that this deficiency could 
be remedied by deleting the provision or by revising K.A.R. 28-16-
28c(c)(3) to require that, prior to a removal of a designated use, a 
showing be made as to whether attaining the designated use is not 
feasible consistent with the provisions at 40 CFR 131.10(g).
    In 1999, the State of Kansas adopted subsequent revisions to its 
water quality standards, including revisions to K.A.R. 28-16-28c(c)(3). 
Those revisions recognize the need for the State to conduct a use 
attainability analysis to support any downgrade in use and acknowledge 
that any new or revised use would need to be adopted as part of the 
State's water quality standards.
    However, in oral communications with EPA staff, KDHE staff informed 
EPA that the 1999 revisions also authorize NPDES permit limitations to 
be based on the use attainability analysis even before the 
corresponding revised use designations are adopted by

[[Page 41226]]

the State into their water quality standards. That is inconsistent with 
the current EPA regulations. In effect, Kansas is removing a designated 
use upon completion of a UAA but prior to following the public process 
for water quality standards revisions. 40 CFR 131.20(b). Furthermore, 
under recently promulgated regulations at 65 FR 24641 (April 27, 2000), 
revisions to State water quality standards will not be effective for 
the purposes of the CWA until approved by EPA. Therefore, a use 
attainability analysis contemplated under the provisions of the 1999 
revisions cannot serve as a basis for NPDES permit limitations until 
the State adopts the corresponding use designation revision, submits it 
to EPA, and obtains EPA approval. K.A.R. 28-16-28c(c)(3), in effect, 
would allow permitting authorities to calculate limitations based on 
the results of a use attainability analysis irrespective of the 
outlined process. For that reason, the 1999 Kansas revisions are 
inconsistent with EPA's implementing regulations and do not address the 
deficiencies identified in EPAs 1998 disapproval letter with respect to 
the State's earlier version of that section. Therefore, the 1999 Kansas 
revisions to this provision do not eliminate the need for a Federal 
promulgation.
3. Ensuring Discharges to Effluent-Created Habitat Waters Protect the 
Designated Use
    EPA is proposing to promulgate a provision requiring that 
designated uses at K.A.R. 28-16-28d and K.A.R. 28-16-28e for stream 
segments for which continuous flow is sustained primarily through the 
discharge of treated effluent must be protected (irrespective of the 
development of a use attainability analysis that demonstrates that a 
different use may be appropriate) until EPA approves a revision to the 
applicable use designation.
4. Request for Comment and Data
    EPA solicits any additional data and information that may further 
support or refute the need for the changes being proposed today. The 
Agency will evaluate any data and information submitted to EPA by the 
close of the public comment period. After full consideration of such 
information, EPA will make a final decision on the appropriateness of 
the changes in today's proposal.

D. Procedures for Implementing the State's Antidegradation Policy

1. Background
    In compliance with Federal regulations at 40 CFR 131.12(a), the 
State identified its methods for implementing the State's 
antidegradation policy and submitted these methods to EPA as part of 
the Kansas Surface Water Quality Implementation Procedures (October 18, 
1994) on October 31, 1994. The Kansas Surface Water Quality 
Implementation Procedures (the Procedures) contained procedures the 
State uses to implement its antidegradation policy and develop water 
quality-based effluent limitations and conditions for NPDES permits. 
The portion of the Procedures addressing implementation of the State's 
antidegradation policy only addressed point sources of pollution. The 
State's Procedures were silent on implementing the antidegradation 
requirements of K.A.R. 28-16-28c(a)(2), in the context of determining 
whether to allow a lowering of surface water quality by point sources 
of pollution where nonpoint sources also contribute the pollutant of 
concern to that body of water. On August 10, 1999, the State submitted 
revised Kansas Implementation Procedures: Surface Water (June 1, 1999) 
to EPA for review and approval. The citation for the State 
antidegradation regulation changed from K.A.R. 28-16-12c(a)(2) to 
K.A.R. 28-16-28c(a)(1)(B) in the 1999 revisions.
2. EPA's Review of Kansas' Antidegradation Implementation Procedures
    As part of its review of the 1994 submission of new or revised 
water quality standards from the State, EPA reviewed the portion of 
Kansas Surface Water Quality Implementation Procedures (October 18, 
1994) addressing antidegradation, section 3, and found that the 
procedures did not fully address implementation of Kansas' 
antidegradation policy consistent with Federal regulations at 40 CFR 
131.12(a). As discussed in section III. F., however, the State 
addressed all but one of the deficiencies in its 1999 submission, and 
EPA approved them in January 2000. Although revised in 1999, the 
State's antidegradation implementation procedures still did not 
identify how Kansas would implement the requirement in K.A.R. 28-16-
28c(a)(1)(B) that all cost-effective and reasonable best management 
practices for nonpoint sources of pollution shall be achieved in 
instances when the KDHE allows a lowering of water quality by point 
sources. Accordingly, EPA's February 1998 disapproval remains in 
effect.
3. EPA Proposal To Promulgate Antidegradation Implementation Provisions 
for Kansas
    Because of this continuing deficiency in Kansas' antidegradation 
implementation procedures, EPA is proposing to identify implementation 
procedures for use when applying K.A.R. 28-16-28c(a)(1)(B) to determine 
whether to allow a lowering of surface waters quality by point sources 
of pollution where nonpoint sources also contribute the pollutant of 
concern to that body of water. The proposed implementation procedures 
are described next.
    Consistent with Federal regulations, Kansas' antidegradation policy 
at K.A.R. 28-16-28c(a)(1)(B) requires that, before allowing degradation 
of water quality in high quality waters from a point source, the 
highest statutory and regulatory requirements for all point sources, 
and all cost effective and reasonable BMPs for controlling nonpoint 
sources, are achieved. This requirement ensures that, before additional 
increments of water quality are used by point sources, nonpoint sources 
currently introducing the same pollutants into the water body are 
taking all reasonable steps required by State law to minimize the 
introduction of those pollutants. The implementation procedures 
proposed today are intended to facilitate the application of this 
requirement in Kansas' antidegradation regulation. These proposed 
procedures are based on guidance issued by EPA in 1994 entitled 
Interpretation of Federal Antidegradation Regulatory Requirement, from 
Tudor T. Davies, dated February 22, 1994. They consist of three steps 
to be undertaken when applying K.A.R. 28-16-28c(a)(1)(B) to determine 
whether to allow a lowering of surface water quality by point sources 
of pollution where non-pont sources also contribute the pollutant of 
concern. First, Kansas would need to identify significant sources (or 
categories) of nonpoint pollution that may impact a high quality water 
body by releasing the pollutants of concern. Second, Kansas would need 
to identify reasonable and cost-effective BMPs for each of these 
significant nonpoint sources or source categories. Third, Kansas would 
need to determine that significant nonpoint sources in those nonpoint 
source categories will implement the appropriate BMPs. In addition, EPA 
recommends conducting these analyses prospectively, on a watershed 
basis, to

[[Page 41227]]

facilitate antidegradation reviews of individual activities.
    With respect to the first step, significant nonpoint source 
contributors can be identified through an analysis of all nonpoint 
source contributors in the area, or by an analysis of all nonpoint 
source contributors whose proximity to the water body, water body 
segment, or tributaries makes them ``significant'' in terms of 
potential water quality impact. Other factors such as the degree of 
uncertainty concerning cause-effect relationships can also be 
considered. Consistent with EPA's interpretation of its regulations, 
Kansas need only identify nonpoint source contributors for which the 
State has established requirements to implement control programs, but 
Kansas may also choose to identify other significant nonpoint source 
contributors that are not subject to such programs.
    With respect to the second step of this implementation procedure, 
Kansas need only identify those cost-effective and reasonable BMPs or 
other nonpoint source pollution reduction measures that are part of its 
nonpoint source programs, including any developed under section 319 of 
the CWA, and that are required to be implemented under State law. Of 
course, the State is also free to identify cost-effective and 
reasonable BMPs that are not required by State law.
    With respect to the third step, the State need only determine that 
the BMPs will be implemented. Such a determination can rely on Kansas 
regulations, local ordinances, performance bonds, contracts, cost share 
agreements and memorandums of understanding, as well as voluntary 
programs under certain circumstances, e.g., an active nonpoint source 
program covering a watershed or area of concern.
    Under this proposed regulation, the implementation procedures would 
apply to any determination under K.A.R. 28-16-28c(a)(1)(B) to allow a 
lowering of water quality from a point source where nonpoint sources 
are also contributing the pollutant of concern to the body of water. 
The State is also encouraged to apply or adapt the EPA's 1994 guidance 
to other activities that State law requires to comply with Tier 2 of 
the State's antidegradation requirements, including new or 
significantly expanded nonpoint sources.
    To comply with the requirements of today's proposal, EPA would 
expect that permit fact sheets or statements of basis for facilities 
permitted under the National Pollutant Discharge Elimination System 
(NPDES) program describe compliance with antidegradation requirements 
through the application of the proposed implementation procedures. EPA 
may object to any permit that does not meet the requirements of the 
Clean Water Act. Where there is no discussion of antidegradation in the 
NPDES permit fact sheet, EPA may be unable to determine that the permit 
conditions derive from and comply with the State standards and with the 
requirements of the CWA.
4. Request for Comment and Data
    EPA solicits comment on the antidegradation implementation 
procedures it is proposing. EPA also requests comments on any other 
procedures that could be used to implement the Kansas requirements at 
K.A.R. 28-16-28c(a)(1)(B). EPA also requests comment on whether it is 
necessary to promulgate a regulation in order to establish these 
implementation procedures for Kansas. The Agency will evaluate any 
comments, data and information submitted to EPA by the close of the 
public comment period. After full consideration of such comments, data, 
and information, EPA will make a final decision on the appropriateness 
of today's proposed changes and EPA's antidegradation implementation 
procedures with respect to the relationship between point and nonpoint 
sources.

V. What Federal Water Quality Standards Is EPA Proposing Under 
Section 303(c)(4)(B)?

A. Legal Basis

    CWA section 303(c) specifies that adoption of water quality 
standards is primarily the responsibility of the States. However, 
section 303(c) also describes a role for EPA overseeing State actions 
to ensure compliance with CWA requirements. If EPA's review of the 
State's standards finds flaws or omissions, then the CWA authorizes EPA 
to promulgate replacement Federal standards to correct the deficiencies 
if the State or authorized Tribes fail to do so. See section 303(c)(4).
    Section 303(c)(4) of the CWA provides two bases for promulgation of 
Federal water quality standards. The first basis, in 303(c)(4)(A), 
applies when a State submits new or revised standards that EPA 
determines are not consistent with the applicable requirements of the 
CWA and EPA's implementing regulations. If the State does not amend its 
rules within 90 days of EPA's disapproval to be consistent with the CWA 
and EPA's implementing regulations, EPA must promptly propose 
appropriate Federal water quality standards for that State. The second 
basis for EPA's action is 303(c)(4) (B), which provides that EPA shall 
promptly initiate promulgation ``* * * in any case where the 
Administrator determines that a new or revised standard is necessary to 
meet the requirements of this Act.'' The authority to make a finding 
under section 303(c)(4)(B) of the CWA and to propose and promulgate 
Federal regulations correcting such State water quality standards rests 
solely with the Administrator.

B. Water Quality Criteria for Alpha-Endosulfan and Beta-Endosulfan

1. Background
    Under section 303(c)(2)(B) of the CWA, States must adopt numeric 
water quality criteria for toxic pollutants listed under EPA section 
307(a)(1) for which EPA has published section 304(a) criteria, if the 
presence of the toxic pollutant in the State's waters is reasonably 
expected to interfere with the protection of the waters' designated 
uses. On December 22, 1992, EPA promulgated the National Toxics Rule 
(NTR), specifying the chemical-specific, numeric water quality criteria 
for priority toxic pollutants necessary to bring all States into 
compliance with the requirements of section 303(c)(2)(B) of the CWA. At 
that time, Kansas had failed to revise its water quality standards to 
meet the requirements of section 303(c)(2)(B) of the CWA. Therefore, in 
the NTR, EPA promulgated numeric water quality criteria for a number of 
toxic pollutants for the protection of aquatic life and human health in 
Kansas.
2. Administrator's Findings Regarding Alpha-Endosulfan and Beta-
Endosulfan
    The Administrator has determined that new or revised water quality 
standards for alpha- and beta-endosulfan are necessary to protect human 
health in Kansas. The Administrator bases this determination on the 
fact that the State has failed to adopt standards required by section 
303(c)(2)(B) despite information that alpha- and beta-endosulfan may 
reasonably be expected to interfere with drinking water designated 
uses. In enacting section 303(c)(2)(B), Congress indicated the need for 
prompt adoption and implementation of water quality standards for toxic 
pollutants if the presence of the toxic pollutants in the State's 
waters is reasonably expected to interfere with the protection of the 
waters' designated uses. Therefore, a State's failure to meet this 
fundamental section 303(c)(2)(B) requirement of adopting appropriate 
standards

[[Page 41228]]

constitutes a failure ``to meet the requirements of the Act.'' Under 
this proposed rulemaking, the State of Kansas retains the ability to 
adopt water quality criteria for these pollutants and correct this 
deficiency.
3. Request for Comment and Data
    EPA solicits any additional data and information that may further 
support or refute the need for numeric water quality criteria for 
alpha- and beta-endosulfan. The Agency will evaluate any data and 
information submitted to EPA by the close of the public comment period. 
After full consideration of such information, EPA will make a final 
decision whether the changes in today's proposal are appropriate.

C. Administrator's Finding Regarding Privately Owned Surface Waters

1. Background
    In its 1998 disapproval letter, EPA identified certain existing 
water quality standards within the K.A.R. relating to the application 
of water quality standards to privately owned surface waters that EPA 
had previously approved, but that appeared to be inconsistent with the 
CWA and EPA's implementing regulations. The Region therefore indicated 
that this issue would be forwarded to the Administrator for action 
consistent with her authority under CWA section 303(c)(4)(B).
    At issue is K.A.R. 28-16-28c(f), entitled Application of Standards 
to Privately-Owned Surface Waters, which states that the application of 
water quality standards to privately owned water bodies shall be 
subject to the provisions of K.S.A. 65-171d. The State law cited in the 
regulation provides in relevant part as follows: If a freshwater 
reservoir or farm pond is privately owned, and where complete ownership 
of land bordering the reservoir or pond is under common private 
ownership, such freshwater reservoir or farm pond shall be exempt from 
water quality standards in Kansas except as it relates to water 
discharges or seepage from the reservoir or pond to waters of the 
State, either surface water or ground water, or as it relates to the 
public health of persons using the reservoir or pond or waters 
therefrom. This is inconsistent with the CWA and EPA's implementing 
regulations to the extent that it would potentially exempt from water 
quality standards surface water--regardless of its ownership 
characteristics--that may be a water of the United States. Kansas' 
exclusion of private waters from protections under the CWA could also 
be a problem in the State's NPDES program. Kansas' failure to apply the 
State's water quality standards to all surface waters--including 
private waters--that are waters of the United States was specifically 
identified as a program deficiency by EPA in an October 1, 1990, letter 
from Martha Steincamp, EPA Regional Counsel, to David Traster, General 
Counsel for KDHE. As a result of discussions between EPA's Regional 
Office and KDHE, this statutory deficiency was to have been addressed 
by legislative action in the 1991 legislative session, but no such 
correction occurred.
    The CWA does not recognize distinctions in ownership in the 
application of water quality standards to waters of the United States. 
Rather, the CWA requires that water quality standards apply to all 
waters of the United States, making no distinction between publicly and 
privately owned waters. The Administrator therefore has determined 
under section 303(c)(4)(B) that the identified provisions are 
inconsistent with the CWA and EPA's implementing regulations. In 
today's Federal Register notice, EPA is proposing to narrow the 
exemption for privately owned surface waters (notably lakes and 
wetlands) so that the exemption would not apply to waters of the United 
States. Whether a particular water is a water of the United States is a 
water body-specific determination. EPA is not aware of any waters of 
the United States in Kansas that are currently exempted from State 
water quality standards because of to the State's provision; 
nonetheless, EPA believes the State's provision creates a potential 
loophole that may preclude the State from protecting a waterbody from 
degradation. Every privately owned waterbody that is a water of the 
United States is entitled to--and indeed requires--protection under the 
CWA. Should the need ever arise to apply water quality standards to any 
privately owned water that is a water of the United States, the State's 
standard for unclassified waters would apply.
2. Request for Comment and Data
    EPA solicits any additional data and information that may further 
support or refute the changes being proposed today. The Agency will 
evaluate any data and information submitted to EPA by the close of the 
public comment period. After full consideration of such information, 
EPA will make a final decision whether the changes in today's proposal 
are appropriate.

VI. Economic Analysis

    This proposed rule would have no direct impact on any entity 
because the proposed rule, once finalized, will simply establish water 
quality standards (e.g., ambient water quality criteria) which by 
themselves do not impose any costs. These standards, however, may serve 
as a basis for development of NPDES permit limits. In Kansas, the State 
is the NPDES permitting authority and retains considerable discretion 
in implementing standards. Thus, until the State implements these water 
quality standards, there will be no effect on any entity. Nonetheless, 
EPA prepared a preliminary analysis to evaluate potential costs to 
NPDES dischargers in Kansas associated with future State implementation 
of EPA's Federal standards.
    Any NPDES-permitted facility that discharges to water bodies 
affected by the proposed rule or that is subject to effluent limits for 
pollutants for which EPA is proposing to promulgate criteria could 
potentially incur costs to comply with the proposed rule's provisions. 
The types of affected facilities may include industrial facilities and 
publically owned treatment works (POTWs). EPA did not consider the 
potential costs for nonpoint sources, such as agricultural and 
forestry-related nonpoint sources, although EPA recognizes that 
controls on these sources may be necessary to achieve designated uses. 
Nonpoint source discharges are technically difficult to model and 
evaluate for costing purposes because they are intermittent, highly 
variable, and occur under different hydrologic or climatic conditions 
than continuous discharges from industrial and municipal facilities, 
which are evaluated under critical low flow or drought conditions. 
Thus, the evaluation of nonpoint sources and their effects on the 
environment is highly site specific and data sensitive. In addition, 
EPA did not address the potential monetary benefits of this proposed 
rule for Kansas.

A. Identifying Affected Facilities

    EPA used available data to identify the total number of facilities 
discharging to Kansas surface waters and the number that may be 
affected by the provisions of today's proposed rule. According to EPA's 
Permit Compliance System (PCS), there are 1,253 NPDES-permitted 
facilities in Kansas. Fifty-seven of the facilities are classified as 
major dischargers, and 1,196 are minor dischargers. The total includes 
320 nondischarging animal feedlots and 85 sand and gravel quarries, 
which are all classified as minor dischargers.
    In determining the number of facilities potentially affected by the 
proposed rule, EPA did not include non-discharging animal feedlots or 
sand and gravel quarries. Because CWA

[[Page 41229]]

section 301(a) prohibits point sources, including concentrated animal 
feeding operations (CAFOs), from discharging to surface waters without 
a permit, and because NPDES permits for CAFOs in turn prohibit 
discharges, EPA was not aware of any CAFO that would be impacted by 
EPA's proposal to upgrade the water use designation. (The only CAFOs 
that would be affected would be those discharging in violation of CWA 
section 301(a) or their permit, and EPA is not aware of such CAFOs in 
Kansas.) Nonetheless, EPA is aware that there may be facilities that 
presently are not subject to NPDES permitting requirements but that 
theoretically could be designated as CAFOs. EPA therefore requests 
information or data on any animal feeding facilities in Kansas that are 
discharging to waters for which EPA proposes to upgrade their 
designated uses and that therefore might be affected by this proposal.
    EPA did not consider sand and gravel quarries because they would 
not discharge pollutants of concern in EPA's proposed rule. Sand and 
gravel quarries likely have permit limits only for total suspended 
solids. In addition, some quarries may have no discharge.
    Therefore, the universe of dischargers that might be affected by 
EPA's proposed rule includes 848 permitted facilities (57 majors and 
791 minors).
    To identify facilities potentially affected by the proposed 
designated use change, EPA determined which of the 848 permitted 
facilities are located on water bodies with proposed changed use 
designations. EPA evaluated 1,485 stream segments and lakes for today's 
proposed rule. However, EPA could not discern the location of all 
facilities with respect to these segments. For water bodies where EPA 
today proposes to upgrade the designated use, EPA solicits any 
additional data and information (e.g., if there are discharges to such 
streams; how the discharges are permitted; concentrations of pollutants 
in such discharges, etc.) that may further support or refute the 
attainability of EPA's proposed changes.
    To identify facilities discharging to waters lacking primary 
contact recreation uses, EPA matched water body data to facility 
records in EPA's Permit Compliance System (PCS) and Industrial 
Facilities Database and a database provided by the State of Kansas. 
This effort identified 154 facilities (6 majors and 148 minors) that 
discharge to segments affected by the proposed rule. However, EPA could 
not discern the discharge location of over 300 facilities, so it is not 
known whether these facilities would be affected by the proposed rule 
or not. To estimate costs, EPA assumed these facilities to be located 
on affected water bodies in the same proportion as identified 
facilities.
    Of the 1,485 stream segments and lakes evaluated, one is also 
lacking an aquatic life support use (Whiskey Creek). Using the same 
procedures, EPA identified one facility that discharges to Whiskey 
Creek.
    To identify facilities discharging to waters affected by the 
proposed assumed flow changes, EPA linked PCS facility data and State-
provided facility data with stream segment information from EPA's 
National Computer Center Gauge File. EPA identified 116 facilities (3 
majors and 113 minors) on water bodies with 7Q10 flows less than 1 cfs. 
Of these 116 facilities, 69 facilities (2 majors and 67 minors) were 
located on streams with zero flow. Thus, EPA assumed that facilities 
evaluated for assumed flow changes would also account for those 
facilities impacted by the effluent created habitat provision of 
today's proposed rule. As such, EPA did not assess the costs for these 
two provisions separately. Note, however, that flow data were not 
available for over half of the facilities. To estimate costs, EPA 
assumed that the proportion of facilities on water bodies with flow 
data that had low flows less than 1 cfs would be the same as the 
proportion of facilities on water bodies without flow data with low 
flows less than 1 cfs. EPA requests comment on its assumption that the 
assumed flow analysis accounts for facilities affected by the effluent 
created habit provision of today's proposal. EPA solicits any 
additional data and information on facilities discharging to waters 
affected by the effluent created habitat provision that may further 
support or refute this approach.
    EPA found no facilities in PCS in Kansas with effluent limits for 
alpha-endosulfan or beta-endosulfan. Although this does not necessarily 
mean that there would be no impact from proposed water quality criteria 
for these pollutants (i.e., facilities may have these pollutants in 
their effluent and may be subject to effluent limits under the proposed 
criteria), EPA does not have data with which to evaluate effluent 
concentrations. EPA requests that persons with data or information on 
the discharge of alpha- or beta-endosulfan to surface waters in Kansas 
to provide it to the Agency for evaluation.
    With respect to EPA's proposal to apply the States' water quality 
standards to privately owned surface waters that are waters of the 
United States, EPA was unable to evaluate the economic impact of that 
proposal for several reasons. EPA was unable to determine whether any 
such waters received discharges that, as a consequence of the proposal, 
henceforth could be subject to the CWA's permitting requirements. 
Similarly, EPA did not evaluate potential costs associated with 
proposing to promulgate a regulation that would require Kansas to apply 
the implementation procedures in 40 CFR 131.34(f) when applying the 
States' antidegradation policy (at K.A.R. 28-16-28c(a)(1)(B)) to 
determine whether to allow a lowering of surface waters quality by 
point sources of pollution where nonpoint sources also contribute the 
pollutant of concern to that body of water. EPA solicits any additional 
data and information (e.g., where such waters are located, how 
discharges are permitted; concentrations of pollutants in such 
discharges, etc.) that may assist EPA in estimating potential indirect 
costs to point and nonpoint sources of pollution associated with this 
proposed provision.

B. Selecting a Sample

    Once EPA identified facilities potentially affected by the proposed 
rule, it selected a sample of facilities for evaluation of potential 
compliance costs. EPA stratified the potentially affected facilities by 
major and minor classification and included all major facilities in 
each sample. EPA then drew a random sample of potentially affected 
minor facilities for evaluation. In addition, EPA evaluated separately 
the one facility discharging to the water body lacking an aquatic life 
use. The number of facilities identified and the number of facilities 
used for cost estimation are presented in the following table.

[[Page 41230]]



                                  Number of Facilities Identified and Evaluated
----------------------------------------------------------------------------------------------------------------
                                          Identified facilities \1\                 Evaluated facilities
             Provision             -----------------------------------------------------------------------------
                                       Majors       Minors       Total        Majors       Minors       Total
----------------------------------------------------------------------------------------------------------------
Designated Uses:
    Primary Contact Recreation \2\            6          148          154            6            9           15
    --Aquatic Life \3\............            1            0            1            1            0            1
Assumed Flow \4\..................            3          113          116            3            7           10
Water Quality Criteria............            0            0            0            0            0           0
----------------------------------------------------------------------------------------------------------------
\1\ Additional facilities may be affected but could not be identified (i.e., the universe of potentially
  affected facilities may exceed the estimates shown).
\2\ Facilities discharging to water bodies lacking primary contact recreation use.
\3\ Facilities discharging to water bodies lacking aquatic life use.
\4\ Facilities discharging to streams with a 7Q10 flow of less than one.

C. Methodology for Estimating Potential Compliance Costs

1. Proposed Designated Uses
    EPA evaluated the separate samples of facilities for potential 
costs resulting from EPA's proposal to designate waters for primary 
contact recreation and aquatic life support. For primary contact 
recreation, EPA assumed that a sample facility would have a reasonable 
potential to exceed water quality criteria for fecal coliforms (and 
require a permit limit) if, for facilities with effluent data for fecal 
coliforms, the maximum effluent concentration exceeded the most 
stringent water quality criterion (the monthly average of 200 colonies 
per 100 ml). EPA also assumed a facility to have reasonable potential 
to exceed water quality criteria if a limit for fecal coliforms is 
included in its existing permit or if it discharges treated domestic 
sewage that has not been disinfected.
    EPA assumed that projected effluent limits would be the same as 
existing water quality criteria for fecal coliforms (a monthly 
geometric mean of 200 colonies per 100 ml and a weekly geometric mean 
of 400 colonies per 100 ml) because existing EPA guidance recommends 
this approach (U.S. EPA, 1977).
    EPA assumed that a sample facility would incur costs when its 
maximum effluent concentration (or existing permit limit, whichever is 
smaller) exceeded the most stringent water quality criterion for fecal 
coliforms. EPA also assumed that a facility would incur costs if it 
discharges domestic sewage without a disinfection system currently in 
place.
    For this analysis, EPA assumed that facilities with disinfection 
systems in place but whose effluents do not comply with projected 
effluent limits could be brought into compliance with treatment process 
optimization. EPA assumed that UV light disinfection would be installed 
at facilities with effluents containing domestic sewage that do not 
have a disinfection system in place.
    One facility discharges to a stream that is not designated as 
supporting aquatic life uses. However, because effluent data are not 
available for this facility, EPA estimated that it does not have 
reasonable potential to cause exceedences of chronic aquatic criteria. 
Consequently, EPA anticipates no cost for this provision.
2. Proposal Regarding Assumed Flow
    EPA analyzed reasonable potential for all toxic pollutants with 
effluent data or limits in existing NPDES permits under two scenarios. 
For a low scenario, EPA calculated a projected effluent quality (PEQ) 
value for pollutants with effluent data above detection levels. The PEQ 
is an effluent value statistically adjusted for uncertainty which EPA 
uses to estimate a maximum value. The methodology to derive a PEQ is 
based on EPA's Technical Support Document for Water Quality-based 
Toxics Control (TSD) (1991).
    EPA then determined that waste load allocations (WLAs) for each 
sample facility would be equal to the chronic criterion (or chronic 
continuous concentration, CCC) because there would be no dilution 
available (i.e., all sample facilities had 7Q10 stream flows equal to 
zero). WLAs for metals are expressed in dissolved form (i.e., a 
translator of one was used to convert criteria from dissolved to 
total). EPA estimated that a facility had reasonable potential to 
exceed the water quality criterion for a pollutant when its PEQ 
exceeded the WLA. For the high scenario, EPA assumed that a facility 
had reasonable potential to exceed water quality criteria for a 
pollutant if it had a limit in its existing NPDES permit or if it had 
reasonable potential under the low scenario. EPA calculated projected 
effluent limits based on the methods recommended in EPA's TSD.
    Dischargers may be affected by EPA's proposed action if their 
current permit limits or PEQs exceed projected effluent limits 
developed using actual stream flows. Affected dischargers would need to 
implement measures to either reduce pollutant concentrations in their 
effluent or seek relief (e.g., through total maximum daily loads 
(TMDLs), site-specific criteria, or water quality variances). EPA used 
different approaches to estimate potential cost impacts under its low 
and high scenarios.
    For the low scenario, EPA estimated pollution control costs in 
situations where the maximum effluent concentration (MEC) exceeded 
projected effluent limits and used the MEC as the baseline effluent 
quality value. However, if the MEC exceeded an existing permit limit, 
EPA used the existing permit limit as a baseline concentration to avoid 
including costs that are associated with complying with current State 
regulations. EPA estimated costs based on the incremental pollutant 
loading reductions required to achieve the projected limits. However, 
if the annualized cost to remove a pollutant exceeded $200 per toxic 
pound-equivalent, EPA assumed that the facility would pursue regulatory 
relief (e.g., a variance) at a cost of $200,000 per pollutant (U.S. 
EPA, 1995).
    For the high scenario, EPA estimated pollution control costs using 
the existing permit limit as a baseline effluent concentration. Where 
an existing permit limit was not available, EPA used the MEC as the 
baseline effluent quality concentration. Again, EPA estimated costs 
based on the incremental pollutant loading reductions required to 
achieve the projected limits. However, EPA did not assume that 
facilities would pursue regulatory relief even if costs exceeded $200 
per toxic pound-equivalent.
    For both scenarios, EPA followed a decision framework based on the 
assumption that a facility would pursue lower cost control strategies 
prior to adding end-of-pipe treatment.
    EPA estimated loading reductions as the difference between the 
baseline

[[Page 41231]]

concentration and the projected WQBEL. Note, however, that this 
convention likely results in an upper bound estimate of loading 
reductions because facilities typically discharge at levels below the 
MEC.
    EPA converted pollutant loading reductions from pounds (lbs) to 
toxic pounds-equivalent (lbs-eq) using toxicity weighting factors from 
the Assessment of Compliance Costs Resulting from Implementation of the 
Final Great Lakes Water Quality Guidance (U.S. EPA, 1995). EPA uses the 
toxic weights presented in the Great Lakes analysis to allow 
comparability of cost-effectiveness among previous water quality 
regulatory efforts. Toxicity weighting factors are primarily derived 
from EPA chronic freshwater aquatic criteria and toxicity values, but 
are also based on human health criteria when a human health criterion 
has been established. The toxicity weighting factors used for the 
analysis are standardized to the former copper water quality criterion 
of 5.6 <greek-m>g/L.
    EPA did not evaluate reasonable potential for non-toxic, 
conventional pollutants (e.g., dissolved oxygen) for facilities 
discharging to streams with a 7Q10 flow of less than one cfs. EPA found 
that most of the sample facilities do not have water quality-based 
effluent limits for conventional pollutants in existing NPDES permits. 
EPA solicits effluent data and information on treatment technologies 
currently in place for conventional pollutants for facilities 
discharging to streams with a 7Q10 flow of less than one cfs.

D. Results

1. Proposed Designated Uses
    EPA estimated the costs associated with its proposal to designate 
water bodies for primary contact recreation use and aquatic life use 
separately. For primary contact recreation use, there are 154 
potentially affected facilities out of a total of 511 identified 
facilities. However, EPA could not obtain reach code information or 
location data to determine if 337 facilities are affected or not. For 
these facilities, EPA assumed that the same percentage would be 
affected as for identified facilities (estimating separately for major 
and minor facilities).
    EPA estimated that the total statewide cost associated with 
designating the affected water bodies for primary contact recreation 
would be approximately $1.9 million. EPA estimated that costs for major 
dischargers are negligible because five of the six major dischargers 
sampled presently have disinfection facilities and NPDES limits that 
are consistent with primary contact recreation. For minors, however, 
eight of the nine sampled facilities do not have disinfection 
facilities, effluent limits, or monitoring data for fecal coliforms.
    EPA estimated that the potential cost associated with reinstating 
aquatic life uses on the affected water bodies is zero. However, this 
estimate is based on the one affected facility that could be 
identified.
2. Proposal Regarding Assumed Flow
    For the assumed flow provision, there are 116 potentially affected 
facilities out of a total of 517 identified facilities. However, EPA 
did not have information to determine if 331 facilities are affected or 
not. Again, for these facilities, EPA assumed that the same percentage 
would be affected as for identified facilities (estimating separately 
for major and minor facilities).
    EPA estimated that the total statewide cost may range from $28,000 
to $128,000 annually. The costs are minimal because, of the ten sample 
facilities, EPA anticipates that two major facilities would incur 
pollutant minimization control costs under the high scenario. Under the 
low scenario, only one major facility would require some control, and 
EPA assumed that this facility would pursue regulatory relief. EPA does 
not anticipate any costs for minor facilities because none of the 
facilities have limits or data for toxic pollutants.
    EPA does not anticipate any resulting pollutant loading reductions 
under the low scenario. EPA anticipates small reductions in the 
discharge of chromium VI and copper under the high scenario.
    EPA did not evaluate potential costs associated with removing the 
assumed flow provision for conventional pollutants. EPA recognizes that 
costs associated with installing new treatment technologies for 
treating conventional pollutants could be significant. Facility-
specific cost analysis can be used to support a variance from the 
State's standard, or to justify a lower aquatic life use with less 
stringent criteria; however, such information is not a basis for 
assuming that dilution exists in situations where the stream flow, at 
times, is at or near zero. EPA's proposed rule, if finalized, would not 
affect the State's ability to issue pollutant-specific variances where 
information shows that one of the factors in 40 CFR 131.10(g) are met, 
including information that shows such water quality-based controls 
would result in substantial and widespread economic and social impact. 
EPA's cost analysis for the final rule will fully address costs 
associated with applying the 7Q10 to conventional pollutants.
3. Total Statewide Costs
    The following table summarizes the total estimated statewide costs 
of the proposed rule. The bulk of the costs are attributable to the 
designation of affected water bodies for primary contact recreation 
use. As described earlier, much of the costs for this provision result 
from the need for minor dischargers to install disinfection.

              Total Estimated Statewide Costs by Provision
                            [July 1999 $/yr]
------------------------------------------------------------------------
                   Provision                      Estimated annual cost
------------------------------------------------------------------------
Designated Use:
    --Primary Contact Recreation...............                1,900,000
    --Aquatic Life.............................                        0
Assumed Flow...................................                0-100,000
Total..........................................      1,900,000-2,000,000
------------------------------------------------------------------------

    EPA recognizes that its identification of facilities that may be 
affected by the proposed rule is based on limited data. EPA could not 
determine whether over 300 facilities would or would not be affected 
because of a lack of data on facility locations. While the assumption 
that the proportion of facilities in this indeterminate category that 
would be affected would be similar to the proportion of facilities 
known to be affected by the proposed rule is

[[Page 41232]]

reasonable, EPA solicits information that would help resolve the 
universe of facilities that would be affected. Should the proportion of 
facilities in the indeterminate category be substantially different 
from the proportion of facilities in the known category, then statewide 
costs may also differ from those reported here.

VII. Alternative Regulatory Approaches and Implementation 
Mechanisms

    In developing a final rule, EPA will consider any data or 
information submitted to the Agency by the close of the comment period. 
However, it is possible that data and information may become available 
after completion of this rulemaking that will be material to water 
quality standards for Kansas. If EPA ultimately promulgates Federal use 
designations for Kansas, there are several mechanisms available to 
ensure that the water quality standards and their implementing 
mechanisms appropriately take into account such new information. These 
mechanisms are described in VII. A., B., C., and D.
    The State should be aware, however, that EPA considers designated 
use changes, site-specific criteria, and variances developed pursuant 
to this provision to be modifications to the State's water quality 
standards. Federal regulations at 40 CFR 122.44(d)(1) require that 
NPDES permits include limitations necessary to achieve water quality 
standards adopted under section 303 of the CWA. Therefore, a designated 
use change, a site-specific criterion, or a variance cannot be the 
basis for NPDES permit limitations until the State has adopted it as 
part of its water quality standards, has submitted it to EPA and EPA 
has approved it. See 40 CFR 131.21(c) & (d). As with any other revision 
to the State's water quality standards, EPA would then review these 
revisions to determine whether they are scientifically defensible in 
accordance with 40 CFR 131.11(b)(1)(iii), or meet the requirements of 
40 CFR 131.10(g), as applicable. EPA will also consider whether the 
appropriate procedural requirements have been met, such as public 
participation and certification by the appropriate legal authority 
within the State. Therefore, if EPA promulgates that regulation as 
proposed, then Kansas would not be able to employ its designated use 
changes, site-specific criteria, and variances as a basis for NPDES 
permit limits until Kansas submits and EPA approves them.

A. Designating Uses

    States have considerable discretion in designating uses. The State 
may find that changes in use designations are warranted. As stated, EPA 
will review any new or revised use designations adopted by the State 
for any of the water bodies in today's proposal to determine if the 
standards meet the requirements of the CWA and implementing 
regulations. If approved, EPA would subsequently initiate withdrawal of 
any final Federal water quality standards which may result from today's 
proposal. However, EPA cautions the State that it must conduct a use 
attainability analyses as described in 40 CFR 131.10(g) when adopting 
water quality standards that result in uses that are not specified in 
section 101(a)(2) of the CWA, or that result in subcategories of uses 
specified in section 101(a)(2) that require less stringent criteria.

B. Site-Specific Criteria

    The State may also develop data that indicates that a site-specific 
water quality criterion for a particular pollutant is appropriate, and 
then take action to adopt such a criterion into its water quality 
standards. Site specific criteria are allowed by regulation and are 
subject to EPA review and approval. 40 CFR 131.11 requires States to 
adopt criteria that protect designated uses, that are based on sound 
scientific rationale, and that contain sufficient parameters or 
constituents to protect the designated use. In adopting water quality 
criteria, States should establish numerical values based on EPA's 
recommended 304(a) criteria guidance, 304(a) criteria guidance modified 
to reflect site specific conditions, or other scientifically defensible 
methods, or should establish narrative criteria where numerical 
criteria cannot be determined or where necessary to supplement 
narrative criteria.
    Currently, EPA guidance specifies three procedures for States and 
Tribes to follow in deriving site-specific criteria. These are the 
Recalculation Procedure, the Water-Effect Ratio Procedure and the 
Resident Species Procedure. These procedures can be found in the Water 
Quality Standards Handbook (EPA-823-B940005a, 1994). There is currently 
draft guidance for the development of site-specific criteria for the 
protection of human health in the draft Methodology for Deriving 
Ambient Water Quality Criteria for the Protection of Human Health. EPA 
also recognizes there may be naturally occurring concentrations of 
pollutants which may exceed the national criteria published under 
section 304(a) of the CWA, and has issued policy guidance on 
establishing site specific aquatic life criteria equal to natural 
background. (Memo from Tudor T. Davies, Director, Office of Science and 
Technology to the Regional Water Management Division Directors, and 
State and Tribal Water Quality Management Program Directors, dated 11/
5/97.)

C. Variances

    Water quality standards variances are an alternative that can 
provide a facility with a limited period of time to comply with water 
quality standards. The proposed rule contains a Federal variance 
procedure for the designated uses being proposed today. However, the 
procedures described later in this section can also be used by the 
State to develop variances of State-adopted water quality standards.
    EPA believes variances are particularly suitable when the cause of 
nonattainment is discharger-specific and it appears that the designated 
use in question will eventually be attainable. EPA has approved the 
granting of water quality standards variances by States in 
circumstances that would otherwise justify changing a use designation 
on grounds of unattainability (i.e., one or more of the six 
circumstances contained in 40 CFR 131.10(g)). In contrast to a change 
in standards that removes a use designation for a water body, a water 
quality standards variance can apply only to the discharger to whom it 
is granted and only to the pollutant parameter(s) upon which the 
finding of unattainability was based, and only for a limited period of 
time; the underlying standard remains in effect for all other purposes.
    For example, if a designated aquatic life use is currently 
precluded because of high levels of metals from past mining activities 
that cannot be remediated in the short term, but it is expected that 
water quality will eventually improve, a temporary variance may be 
granted to a discharger with relaxed criteria for such metals, until 
remediation progresses and the use becomes attainable. The practical 
effect of such a variance is to allow a permit to be written using less 
stringent criteria, while encouraging ultimate attainment of the 
underlying standard. A water quality standards variance provides a 
mechanism for assuring compliance with sections 301(b)(1)(C) and 
402(a)(1) of the CWA that require NPDES permits to meet applicable 
water quality standards, while granting temporary relief to point 
source dischargers.
    While 40 CFR 131.13 allows States to adopt variance procedures for 
State-adopted water quality standards, such State procedures may not be 
used to grant variances from Federally adopted standards. EPA believes 
that it is appropriate to provide comparable

[[Page 41233]]

Federal procedures where, as proposed here, EPA adopts use designations 
which rely, at least in part, on a rebuttable presumption that 
fishable/swimmable uses are attainable or adopts more stringent 
criteria for the State's use designations. EPA is proposing to 
authorize the Region VII Regional Administrator to grant water quality 
standards variances where a permittee submits data indicating that an 
EPA-designated use is not attainable for any of the reasons in 40 CFR 
131.10(g). Therefore today's rule proposes variance procedures that 
would apply to the designated uses promulgated by EPA for the specific 
stream segments named in today's proposal at proposed 40 CFR 131.34(g) 
and (h).
    Today's proposed rule spells out the process for applying for and 
granting such variances. Authorizing the Regional Administrator to 
grant variances should expedite the processing of variance requests. 
EPA is proposing to use informal adjudication processes in reviewing 
and granting variance requests. That process is contained in 131.34(i) 
of today's proposed rule. Because water quality standards variances, 
technically speaking, are revised water quality standards, the proposal 
provides that the Regional Administrator will provide public notice of 
the proposed variance and provide an opportunity for public comment. 
EPA understands that variance-related issues can often arise in the 
context of permit issuance. EPA Region VII will seek to work closely 
with the State permitting authorities to ensure that variance requests 
will be considered in tandem with the State NPDES permitting process.
    The proposed variance procedures would require an applicant for a 
water quality standards variance to submit a request to the Regional 
Administrator (or his delegatee) with supporting information.
    Under its proposal, as in the national program, the burden is on 
the applicant to demonstrate to EPA's satisfaction that the designated 
use is unattainable for one of the reasons specified in 40 CFR 
131.10(g). A variance may not be granted if the use could be attained, 
at a minimum, by all dischargers implementing effluent limitations 
required under sections 301(b) and 306 of the CWA and the applicant 
implementing reasonable best management practices for nonpoint source 
control.
    Under the proposal, a variance may not exceed three years or the 
term of the NPDES permit, whichever is less. A variance may be renewed 
if the permittee demonstrates that the use in question is still not 
attainable. Renewal of the variance may be denied if EPA finds that the 
conditions of 40 CFR 131.10(g) are not met.
    EPA is soliciting comment on the need for a variance process for 
EPA-promulgated use designations, the appropriateness of the particular 
procedures proposed today, and whether the proposed variance procedures 
are sufficiently detailed.

D. Total Maximum Daily Loads (TMDLs)

    State development of TMDLs is an alternative approach for 
allocating loads of pollutants and ensuring attainment of designated 
uses in these water bodies. Section 303(d) of the CWA and its 
implementing regulations establish the TMDL process to provide a 
mechanism for allocating more stringent water quality-based 
requirements when technology-based controls and other controls are 
inadequate to achieve applicable water quality standards. The TMDL 
process can broaden the opportunity for public participation, expedite 
water quality-based NPDES permitting, and lead to technically sound and 
legally defensible decisions for attaining and maintaining water 
quality standards. In addition, the TMDL process provides a mechanism 
for integrating the management of both point and nonpoint pollution 
sources that together may contribute to a water body's impairment. 
(See: Guidance for Water Quality-based Decisions: The TMDL Process, EPA 
440-4-91-001, April 1991.)

VIII. Administrative Requirements and Related Government Acts

A. Executive Order 12866: Regulatory Planning and Review

    Under Executive Order 12866 (58 FR 51735, October 4, 1993), EPA 
must determine whether a regulatory action is ``significant'' and 
therefore subject to Office of Management and Budget (OMB) review and 
the requirements of the Executive Order. The Executive Order defines 
``significant regulatory action'' as one that is likely to result in a 
rule that may:
    (1) Have an annual effect on the economy of $100 million or more or 
adversely affect in a material way the economy, a sector of the 
economy, productivity, competition, jobs, the environment, public 
health or safety, or State, local, or Tribal governments or 
communities;
    (2) Create a serious inconsistency or otherwise interfere with an 
action taken or planned by another agency;
    (3) Materially alter the budgetary impact of entitlements, grants, 
user fees, or loan programs or the rights and obligations of recipients 
thereof; or
    (4) Raise novel legal or policy issues arising out of legal 
mandates, the President's priorities, or the principles set forth in 
the Executive Order.
    Pursuant to the terms of the Executive Order 12866, it has been 
determined that this rule is a ``significant regulatory action.'' As 
such, this action was submitted to OMB for review. Changes made in 
response to OMB suggestions or recommendations will be documented in 
the public record.

B. The Regulatory Flexibility Act (RFA), As Amended by the Small 
Business Regulatory Enforcement Fairness Act of 1996 (SBREFA), 5 U.S.C. 
601 et seq.

    The Regulatory Flexibility Act (RFA) as amended by the Small 
Business Regulatory Enforcement Fairness Act of 1996 (SBREFA) (5 U.S.C. 
601 et seq.), generally requires an agency to prepare a regulatory 
flexibility analysis of any rule subject to notice and comment 
rulemaking requirements under the Administrative Procedure Act or any 
other statute unless the agency certifies that the rule will not have a 
significant economic impact on a substantial number of small entities. 
Small entities include small businesses, small organizations and small 
governmental jurisdictions.
    For purposes of assessing the impacts of today's proposed rule on 
small entities, small entity is defined as: (1) A small business 
according to RFA default definitions for small business (based on SBA 
size standards); (2) a small governmental jurisdiction that is a 
government of a city, county, town, school district or special district 
with a population of less than 50,000; and (3) a small organization 
that is any not-for-profit enterprise which is independently owned and 
operated and is not dominant in its field.
    After considering these economic impacts of today's proposed rule 
on small entities, the Administrator hereby certifies that this action 
will not have a significant economic impact on a substantial number of 
small entities. This proposed rule will not impose any requirements on 
small entities. The RFA requires analysis of the impacts of a rule on 
the small entities subject to the rule's requirements. See United 
States Distribution Companies v. FERC, 88 F.3d 1105, 1170 (D.C. Cir. 
1996). Today's proposed rule establishes no requirements applicable to 
small entities, and so is not susceptible to regulatory flexibility 
analysis as prescribed by the RFA. (``[N]o [regulatory flexibility] 
analysis is necessary when an agency determines

[[Page 41234]]

that the rule will not have a significant economic impact on a 
substantial number of small entities that are subject to the 
requirements of the rule,'' United Distribution at 1170, quoting Mid-
Tex Elec. Co-op v. FERC, 773 F.2d 327, 342 (D.C. Cir. 1985) (emphasis 
added by United Distribution court).) The Agency is thus certifying 
that today's proposed rule will not have a significant economic impact 
on a substantial number of small entities, within the meaning of the 
RFA.
    Under the CWA water quality standards program, States must adopt 
water quality standards for their waters and must submit those water 
quality standards to EPA for approval; if the Agency disapproves a 
State standard and the State does not adopt appropriate revisions to 
address EPA's disapproval, EPA must promulgate standards consistent 
with the statutory requirements. EPA also has the authority to 
promulgate criteria or standards in any case where the Administrator 
determines that a new or revised standard is necessary to meet the 
requirements of the Act. These State standards (or EPA-promulgated 
standards) are implemented through various water quality control 
programs including the National Pollutant Discharge Elimination System 
(NPDES) program, which limits discharges to navigable waters except in 
compliance with an EPA permit or a permit issued under an approved 
State program. The CWA requires that all NPDES permits include any 
limits on discharges that are necessary to meet applicable water 
quality standards.
    Thus, under the CWA, EPA's promulgation of water quality standards 
establishes standards that the State implements through the NPDES 
permit process. The State has discretion in deciding how to meet the 
water quality standards and in developing discharge limits as needed to 
meet the standards. While the State's implementation of Federally 
promulgated water quality standards may result in new or revised 
discharge limits being placed on small entities, the standards 
themselves do not apply to any discharger, including small entities.
    Today's proposed rule, as explained earlier, does not itself 
establish any requirements that are applicable to small entities. As a 
result of this action, the State of Kansas will need to ensure that 
permits it issues include any limitations on discharges necessary to 
comply with the standards established in the final rule. In doing so, 
the State will have a number of discretionary choices associated with 
permit writing. While Kansas's implementation of the rule may 
ultimately result in some new or revised permit conditions for some 
dischargers, including small entities, EPA's action today does not 
impose any of these as yet unknown requirements on small entities.
C. The Paperwork Reduction Act
    This rule imposes no new or additional information collection 
requirements. Therefore, this rule is not subject to the Paperwork 
Reduction Act.
D. The Unfunded Mandates Reform Act of 1995
    Title II of the Unfunded Mandates Reform Act of 1995 (UMRA), Public 
Law 104-4, establishes requirements for Federal agencies to assess the 
effects of their regulatory actions on State, local, and Tribal 
governments and the private sector. Under section 202 of the UMRA, EPA 
generally must prepare a written statement, including a cost-benefit 
analysis, for proposed and final rules with ``Federal mandates'' that 
may result in expenditures to State, local, and Tribal governments, in 
the aggregate, or to the private sector, of $100 million or more in any 
one year. Before promulgating an EPA rule for which a written statement 
is needed, section 205 of the UMRA generally requires EPA to identify 
and consider a reasonable number of regulatory alternatives and adopt 
the least costly, most cost-effective or least burdensome alternative 
that achieves the objectives of the rule. The provisions of section 205 
do not apply when they are inconsistent with applicable law. Moreover, 
section 205 allows EPA to adopt an alternative other than the least 
costly, most cost-effective or least burdensome alternative if the 
Administrator publishes with the final rule an explanation of why that 
alternative was not adopted. Before EPA establishes any regulatory 
requirements that may significantly or uniquely affect small 
governments, including Tribal governments, it must have developed under 
section 203 of the UMRA a small government agency plan. The plan must 
provide for notifying potentially affected small governments, enabling 
officials of affected small governments to have meaningful and timely 
input in the development of EPA regulatory proposals with significant 
Federal intergovernmental mandates, and informing, educating, and 
advising small governments on compliance with the regulatory 
requirements.
    Today's proposed rule contains no Federal mandates (under the 
regulatory provisions of Title II of the UMRA) for State, local or 
Tribal governments or the private sector. The proposed rule imposes no 
enforceable duty on the State or any local or Tribal government or the 
private sector; rather, this rule proposes designated uses for certain 
waterbodies in Kansas which, when combined with State adopted water 
quality criteria, constitute water quality standards for those 
waterbodies. The State may use these resulting water quality standards 
in implementing its water quality control programs. Today's proposed 
rule does not regulate or affect any entity and, therefore, is not 
subject to the requirements of sections 202 and 205 of the UMRA.
    EPA has determined that this proposed rule contains no regulatory 
requirements that might significantly or uniquely affect small 
governments. As stated, the proposed rule imposes no enforceable 
requirements on any party, including small governments. Moreover, any 
water quality standards, including those proposed here, apply broadly 
to dischargers and are not uniquely applicable to small governments. 
Thus, this proposed rule is not subject to the requirements of section 
203 of UMRA.

E. Executive Order 13132: Federalism

    Executive Order 13132, entitled ``Federalism'' (64 FR 43255, August 
10, 1999) requires EPA to develop an accountable process to ensure 
``meaningful and timely input by State and local officials in the 
development of regulatory policies that have federalism implications.'' 
``Policies that have federalism implications'' is defined in the 
Executive Order to include regulations that have ``substantial direct 
effects on the States, on the relationship between the national 
government and the States, or on the distribution of power and 
responsibilities among the various levels of government.''
    Under section 6 of Executive Order 13132, EPA may not issue a 
regulation that has federalism implications, that imposes substantial 
direct compliance costs, and that is not required by statute, unless 
the Federal government provides the funds necessary to pay the direct 
compliance costs incurred by State and local governments, or EPA 
consults with State and local officials early in the process of 
developing the proposed regulation. EPA also may not issue a regulation 
that has federalism implications and that preempts State law, unless 
the Agency consults with State and local officials early in the process 
of developing the proposed regulation.
    This proposed rule does not have federalism implications. It will 
not have substantial direct effects on the States, on the relationship 
between the national government and the States, or on the

[[Page 41235]]

distribution of power and responsibilities among the various levels of 
government, as specified in Executive Order 13132. The proposed rule 
would not affect the nature of the relationship between EPA and States 
generally, for the rule only applies to waterbodies in Kansas. Further, 
the proposed rule would not substantially affect the relationship of 
EPA and the State of Kansas, or the distribution of power or 
responsibilities between EPA and the various levels of government. The 
proposed rule would not alter the State's authority to issue NPDES 
permits or the State's considerable discretion in implementing these 
water quality standards. Further, this proposed rule would not preclude 
Kansas from adopting water quality standards that meet the requirements 
of the CWA. Thus, the requirements of section 6 of the Executive Order 
do not apply to this proposed rule.
    Although section 6 of Executive Order 13132 does not apply to this 
rule, EPA did consult with State and local government representatives 
in developing this proposed rule. A summary of the concerns raised 
during that consultation and EPA's response to those concerns is 
provided later in this section. In its communications with EPA, KDHE 
expressed concern that some of the standards disapproved by EPA in 1998 
and for which EPA is today proposing Federal replacement regulations, 
would result in substantial costs to small communities without 
significant environmental benefits. Chief among these issues was EPA's 
disapproval of the Kansas assumed low flow provision, that allows 
discharges to water bodies with a 7Q10 flow of less than 1 cubic foot 
per second (cfs) to use an assumed 7Q10 of 1 cfs in setting permit 
limits. EPA disapproved this provision in the State standards because 
it allows water quality-based NPDES permit limits to be derived based 
on dilution that does not exist. As explained previously, the economic 
impact of meeting water quality standards may be taken into 
consideration by the State in making site-specific determinations 
during preparation of use attainability analyses and variances, but not 
in adopting water quality standards for statewide implementation.

F. Executive Order 13084: Consultation and Coordination With Indian 
Tribal Governments

    Under Executive Order 13084, EPA may not issue a regulation that is 
not required by statute, that significantly or uniquely affects the 
communities of Indian Tribal governments, and that imposes substantial 
direct compliance costs on those communities, unless the Federal 
government provides the funds necessary to pay the direct compliance 
costs incurred by the Tribal governments, or EPA consults with those 
governments. If EPA complies by consulting, Executive Order 13084 
requires EPA to provide to the Office of Management and Budget, in a 
separately identified section of the preamble to the rule, a 
description of the extent of EPA's prior consultation with 
representatives of affected Tribal governments, a summary of the nature 
of their concerns, and a statement supporting the need to issue the 
regulation. In addition, Executive Order 13084 requires EPA to develop 
an effective process permitting elected officials and other 
representatives of Indian Tribal governments ``to provide meaningful 
and timely input in the development of regulatory policies on matters 
that significantly or uniquely affect their communities.''
    Today's proposed rule does not significantly or uniquely affect the 
communities of Indian Tribal governments, nor does it impose 
substantial direct compliance costs on them. In this proposed action, 
EPA expressly excludes waters in Indian country. Therefore, the 
requirements of section 3(b) of Executive Order 13084 do not apply to 
this proposed rule.

G. The Endangered Species Act

    Section 7 of the Endangered Species Act (ESA), 16 U.S.C. 1536, 
requires Federal agencies, in consultation with the U.S. Fish and 
Wildlife Service (FWS) and National Marine Fisheries Service (NMFS), to 
ensure their actions are not likely to jeopardize the continued 
existence of any listed species or result in the destruction or adverse 
modification of habitat of such species which have been designated as 
``critical.'' Consultation is designed to assist Federal agencies in 
complying with the requirements of section 7 by supplying a process 
within which FWS and NMFS provide such agencies with advice and 
guidance on whether an action complies with the substantive 
requirements of ESA.
    EPA initiated informal consultation with the FWS under section 7 of 
the ESA in November 1997 regarding EPA's planned action to approve in 
part, and disapprove in part, water quality standards revisions 
submitted by Kansas in 1994. By letter dated February 19, 1998, the FWS 
notified EPA that it concurred with EPA's determination that the 
partial approval, and partial disapproval of the Kansas water quality 
standards revisions of 1994 should not adversely impact Federally-
listed and endangered species. EPA continued to correspond with the FWS 
throughout the period during which Kansas revised its water quality 
standards and submitted them to EPA for approval in August 1999.
    EPA continued its consultation with FWS under section 7 of the ESA 
regarding EPA's planned approval of some of the 1999 revisions to the 
Kansas water quality standards that corrected standards previously 
disapproved by EPA in its 1998 action. As a result of this 
consultation, the FWS issued a biological opinion dated January 6, 
2000, regarding the State of Kansas' Water Quality Standards program. 
The opinion concurred with EPA's determination that EPA's partial 
approval of the 1999 revisions to the Kansas water quality standards 
program should have no adverse effect on any Federally listed species 
or species proposed for listing.
    In its January 6, 2000, letter, FWS also indicated that it would 
continue to coordinate ``with EPA to resolve the disapproval issues in 
the State action.'' EPA continues to actively consult with FWS 
regarding this action to establish Federal water quality standards in 
Kansas and plans to conclude consultation on these proposed Federal 
standards before taking final action.

H. The National Technology Transfer and Advancement Act

    Section 12(d) of the National Technology Transfer and Advancement 
Act of 1995 (NTTAA) Public Law No.104-113, 12(d) (15 U.S.C. 272 note) 
directs EPA to use voluntary consensus standards in its regulatory 
activities unless to do so would be inconsistent with applicable law or 
otherwise impractical. Voluntary consensus standards are technical 
standards (e.g., materials specifications, test methods, sampling 
procedures, and business practices) that are developed or adopted by 
voluntary consensus standards bodies. The NTTAA directs EPA to provide 
Congress, through the Office of Management and Budget, explanations 
when the Agency decides not to use available and applicable voluntary 
consensus standards.
    This proposed rulemaking does not involve technical standards. 
Therefore, EPA is not considering the use of any voluntary consensus 
standards. Nevertheless, EPA welcomes comments on this aspect of the 
proposed rulemaking and specifically invites the public to identify 
potentially-applicable voluntary consensus standards and to explain why 
such standards should be used in this regulation.

[[Page 41236]]

I. Executive Order 13045: Protection of Children From Environmental 
Health Risks and Safety Risks

    Executive Order 13045: Protection of Children from Environmental 
Health Risks and Safety Risks (62 FR 19885, April 23, 1997) applies to 
any rule that: (1) Is determined to be ``economically significant'' as 
defined under Executive Order 12866, and (2) concerns an environmental 
health or safety risk that EPA has reason to believe may have a 
disproportionate effect on children. If the regulatory action meets 
both criteria, the Agency must evaluate the environmental health or 
safety effects of the planned rule on children, and explain why the 
planned regulation is preferable to other potentially effective and 
reasonably feasible alternatives considered by the Agency.
    This proposed rule is not subject to the Executive Order because it 
is not economically significant as defined in Executive Order 12866, 
and because the Agency does not have reason to believe the 
environmental health or safety risks addressed by this action present a 
disproportionate risk to children. This rule establishes water quality 
standards o meet the requirements of the CWA and the implementing 
Federal regulations.
    The public is invited to submit or identify peer-reviewed studies 
and data, of which the agency may not be aware, that indicates these 
water quality standards are not adequate to protect children's health.

J. Executive Order 12886: Plain Language

    Executive Order 12886 and the President's memorandum of June 1, 
1998 require each agency to write all rules in plain language. We 
invite your comments on how to make this proposed rule easier to 
understand. For example:

--Have we organized the material to suit your needs?
--Are the requirements in the rule clearly stated?
--Does the rule contain technical language or jargon that isn't clear?
--Would a different format (grouping and order of sections, use of 
headings, paragraphing) make the rule easier to understand?
--Would more (but shorter) sections be better?
--What else could we do to make the rule easier to understand?

List of Subjects in 40 CFR Part 131

    Environmental protection, Indians-lands, Reporting and 
recordkeeping requirements, Water pollution control.

    Dated: June 16, 2000.
Carol M. Browner,
Administrator.

    For the reasons set forth in the preamble, EPA proposes to amend 40 
CFR part 131 as follows:

PART 131--WATER QUALITY STANDARDS

    1. The authority citation for part 131 continues to read as 
follows:

    Authority: 33 U.S.C. 1251 et seq.

Subpart D--[Amended]

    2. Section 131.34 is added to read as follows:


Sec. 131.34  Kansas.

    (a) Do Kansas' water quality standards apply to ``privately owned 
surface waters'? The State's water quality standards apply to all 
waters of the U.S. within the jurisdiction of the State.
    (b) What criteria apply to the Domestic Water Supply Use in Kansas? 
In addition to the criteria specified at K.A.R. 28-16-28e(c)(3) and at 
Sec. 131.36 of this Part for Kansas, the following criteria apply to 
Kansas surface waters designated for Domestic Water Supply Use:

------------------------------------------------------------------------
                Pollutant                            Criterion
------------------------------------------------------------------------
alpha-endosulfan.......................  110 <greek-m>gliter.
beta-endosulfan........................  110 <greek-m>gliter.
------------------------------------------------------------------------

    (c) What uses must be protected for stream segments in Kansas for 
which continuous flow is sustained primarily through the discharge of 
treated effluent? Designated uses at K.A.R. 28-16-28d and K.A.R. 28-16-
28e for stream segments for which continuous flow is sustained 
primarily through the discharge of treated effluent must be protected 
(irrespective of the development of a use attainability analysis that 
demonstrates that a different use may be appropriate) until EPA 
approves a revision to the applicable use designation.
    (d) What design flow applies when establishing mixing zones to 
implement chronic aquatic life criteria in Kansas? The design flow of 
7Q10, 4B3, or other scientifically defensible design flows approved by 
EPA shall be used in calculating the mixing zone cross-sectional area 
or volumetric flow in the implementation of chronic aquatic life 
criteria:
    (1) Under K.A.R. 28-16-28c(b)(7)for discharges of all pollutants to 
any surface waters designated in Kansas as exceptional State waters; 
and
    (2) Under K.A.R. 28-16-28c(b)(8), (A) through (C), for discharges 
of all pollutants to any surface waters designated in Kansas as general 
purpose waters, including special aquatic life use waters, expected 
aquatic life use waters, and restricted aquatic life use waters.
    (e) What design flow applies when establishing mixing zones to 
implement acute aquatic life criteria in Kansas? The design flow of 
1Q10, 1B3, or other scientifically defensible design flows approved by 
EPA shall be used in calculating the mixing zone cross-sectional area 
or volumetric flow in the implementation of acute aquatic life 
criteria:
    (1) Under K.A.R. 28-16-28c(b)(7)for discharges of all pollutants to 
any surface waters designated in Kansas as exceptional State waters; 
and
    (2) Under K.A.R. 28-16-28c(b)(8), (A) through (C), for discharges 
of all pollutants to any surface waters designated in Kansas as general 
purpose waters, including special aquatic life use waters, expected 
aquatic life use waters, and restricted aquatic life use waters.
    (f) What procedures apply to implement the provisions of Kansas' 
antidegradation requirements that would allow the lowering of surface 
water quality by point sources where nonpoint sources also contribute 
the pollutant of concern to that body of water? The following 
implementation procedures are for use when applying K.A.R. 28-16-
28c(a)(1)(B) to determine whether to allow a lowering of surface water 
quality by point sources of pollution where nonpoint sources also 
contribute the pollutant of concern to that body of water:
    (1) Identification of significant sources (or categories) of 
nonpoint pollution that may impact a high quality water body by 
releasing the pollutants of concern;
    (2) Identification of reasonable and cost-effective best management 
practices (BMPs) for each of these significant nonpoint sources or 
source categories; and
    (3) Determination that significant nonpoint sources in those 
nonpoint source categories will implement appropriate BMPs.
    (g) In addition to the State-adopted use designations, the 
following water body in Kansas is designated for expected aquatic life 
use.

[[Page 41237]]



----------------------------------------------------------------------------------------------------------------
                                                                      Lattitude/longitude
             Stream segment name                    HUC8      ----------------------------------    Segment No.
                                                                     Lower           Upper
----------------------------------------------------------------------------------------------------------------
                                                 Basin; Missouri
 
                                          Subbasin; Independence-Sugar
----------------------------------------------------------------------------------------------------------------
WHISKEY CREEK...............................        10240011     39.54  95.11     39.53  95.11        235 00.00
----------------------------------------------------------------------------------------------------------------

    (h) In addition to the State adopted use designations, the 
following water body segments and lakes in Kansas are designated for 
primary contact recreational use.

----------------------------------------------------------------------------------------------------------------
                                                               Latitude/longitude
      Stream segment name           HUC8    -------------------------------------------------------- Segment No.
                                                 Lower         Lower         Upper         Upper
----------------------------------------------------------------------------------------------------------------
                                                 Basin: Cimarron
----------------------------------------------------------------------------------------------------------------
                                                Subbasin: Crooked
----------------------------------------------------------------------------------------------------------------
Remuda Creek..................     11040007         37.08        100.28         37.16        100.28            4
----------------------------------------------------------------------------------------------------------------
                                         Subbasin: Upper Cimarron-Bluff
----------------------------------------------------------------------------------------------------------------
Antelope Creek................     11040008         37.09         99.91         37.25         99.98           16
Bear Creek....................     11040008         37.05         99.71         37.3          99.79           18
Big Sandy Creek...............     11040008         37.04         99.76         37.06         99.81            6
Big Sandy Creek...............     11040008         37.06         99.81         37.07         99.83            7
Big Sandy Creek...............     11040008         37.07         99.83         37.21        100.34            9
Bullard Creek.................     11040008         37.06         99.81         37.11        100.21           10
Day Creek.....................     11040008         37.07         99.61         37.27         99.67           20
Gyp Creek.....................     11040008         37.17        100.07         37.37        100.11           25
Indian Creek..................     11040008         37.16        100.05         37.35        100.01           14
Kiger Creek...................     11040008         37.07         99.83         37.35         99.95            8
Kiowa Creek...................     11040008         37.18         99.47         37.49         99.43           12
Snake Creek...................     11040008         37.06         99.61         36.99         99.68           21
Stink Creek...................     11040008         37.04         99.79         37            99.87           17
Trout Creek...................     11040008         37.05         99.55         37.02         99.59           19
Twomile Creek.................     11040008         37.13        100.01         37.14        100.16           15
----------------------------------------------------------------------------------------------------------------
                                      Subbasin: Lower Cimarron-Eagle Chief
----------------------------------------------------------------------------------------------------------------
Anderson Creek................     11050001         36.99         99.36         37.02         99.33           39
Keno Creek....................     11050001         36.97         99.29         37            99.29           22
West Creek....................     11050001         36.98         99.42         37.08         99.35           24
----------------------------------------------------------------------------------------------------------------
                                         Basin: Kansas/Lower Republican
                                           Subbasin: Middle Republican
----------------------------------------------------------------------------------------------------------------
Advent Creek..................     10250016         40.01         98.4          39.99         98.4            64
Antelope Creek................     10250016         39.9          98.26         39.98         98.31           65
Ash Creek.....................     10250016         39.88         98.44         39.99         98.49           65
Ayres Creek...................     10250016         40.01         98.29         39.98         98.31           70
Bean Creek....................     10250016         39.9          97.92         39.94         98.02           76
Burr Oak Creek................     10250016         39.87         98.31         39.99         98.45           48
Calumet Creek.................     10250016         40.01         98.97         39.99         98.98           54
Cedar Creek...................     10250016         40.02         98.52         40            98.51           63
Cora Creek....................     10250016         39.9          98.56         39.94         98.72           51
Crow Creek (Crystal Creek)....     10250016         40            99.16         39.93         99.24           52
Dry Creek.....................     10250016         39.84         97.83         39.9          97.71           80
Korb Creek....................     10250016         39.9          98.21         39.97         98.24           72
Lohff Creek...................     10250016         40.01         98.83         39.98         98.83           56
Long Branch...................     10250016         39.9          98.24         39.98         98.28           68
Lost Creek....................     10250016         40            99.02         39.96         99.01           53
Louisa Creek..................     10250016         40.02         98.58         39.98         98.58           61
Norway Creek..................     10250016         39.9          98.16         39.97         98.2            73
Oak Creek.....................     10250016         40.02         98.21         39.96         98.21           75
Otter Creek...................     10250016         39.91         97.84         40.01         97.77           79
Rankin Creek..................     10250016         40.01         98.35         39.98         98.35           69
Rebecca Creek.................     10250016         40.01         99.1          39.96         99.15           39
Rock Creek....................     10250016         40.01         98.77         39.98         98.77           57
Spring Creek..................     10250016         39.9          98.19         39.85         98.22           71
Spring Creek..................     10250016         39.94         97.86         39.96         97.99           78
State Creek...................     10250016         40.07         98.59         40            98.61           62

[[Page 41238]]

 
Taylor Creek..................     10250016         39.9          98.16         39.97         98.19           74
Walnut Creek..................     10250016         40.01         98.69         39.97         98.81           40
Walnut Creek..................     10250016         39.88         98.29         39.99         98.37           46
White Rock Creek, North Branch     10250016         39.88         98.48         39.98         98.58           60
Wolf Creek....................     10250016         39.89         98.28         39.94 <ls-    98.32           67
                                                                           thn-eq>
----------------------------------------------------------------------------------------------------------------
                                           Subbasin: Lower Republican
----------------------------------------------------------------------------------------------------------------
Beaver Creek..................     10250017         39.71         97.8          39.86         97.92           45
Beaver Creek..................     10250017         39.56         97.38         39.48         97.43           61
Buffalo Creek.................     10250017         39.59         97.71         39.62         97.87           29
Buffalo Creek, EAST...........     10250017         39.67         98.14         39.82         98.14           68
Cheyenne Creek................     10250017         39.61         97.86         39.51         97.91           55
Coal Creek....................     10250017         39.68         97.56         39.79         97.55           47
Cool Creek....................     10250017         39.59         97.64         39.67         97.67           50
Dry Creek.....................     10250017         39.64         98.13         39.67         98.21           43
East Creek....................     10250017         39.66         97.56         39.82         97.51           21
Elk Creek, West Fork..........     10250017         39.63         97.42         39.78         97.45           16
Elm Creek, East Branch........     10250017         39.53         97.46         39.41         97.52           62
Elm Creek, West Branch........     10250017         39.51         97.53         39.43         97.6            59
Finney Creek..................     10250017         39.36         97.11         39.46         97.05           64
Gar Creek.....................     10250017         39.56         97.26         39.75         97.34           12
Hay Creek.....................     10250017         39.59         97.67         39.68         97.69           49
Lincoln Creek.................     10250017         39.33         97.08         39.43         97.01           65
Lost Creek....................     10250017         39.59         97.66         39.51         97.68           57
Marsh Creek...................     10250017         39.71         97.94         39.86         97.97           35
Marsh Creek, EAST.............     10250017         39.74         97.95         39.84         98.09           42
Marsh Creek, WEST.............     10250017         39.71         97.94         39.81         98.11           36
Millers Creek.................     10250017         39.46         97.23         39.4          97.52           40
Mud Creek.....................     10250017         39.55         97.34         39.49         97.36           63
Oak Creek.....................     10250017         39.67         97.8          39.7          97.85           48
Oak Creek.....................     10250017         39.58         97.57         39.43         97.65           58
Peel Creek....................     10250017         39.51         97.23         39.79         97.2            10
Plum Creek....................     10250017         39.58         97.56         39.5          97.59           60
Riley Creek...................     10250017         39.73         97.59         39.89         97.65           24
Salt Creek, West..............     10250017         39.65         97.56         39.9          97.7            25
Spring Creek..................     10250017         39.65         98.07         39.76         98.11           44
Spring Creek..................     10250017         39.58         97.19         39.66         97.18           53
Turkey Creek..................     10250017         39.7          97.54         39.73         97.49           51
Upton Creek...................     10250017         39.61         97.49         39.7          97.5            52
Whites Creek..................     10250017         39.59         97.8          39.47         97.87           54
Wolf Creek, West Branch.......     10250017         39.54         97.73         39.47         97.81           56
----------------------------------------------------------------------------------------------------------------
                                             Subbasin: Upper Kansas
----------------------------------------------------------------------------------------------------------------
Davis Creek...................     10270101         38.96         96.75         38.85         96.65           18
Dry Creek.....................     10270101         38.99         96.74         38.87         96.6            19
Humbolt Creek.................     10270101         39.05         96.73         38.89         96.54           10
Kitten Creek..................     10270101         39.21         96.7          39.27         96.69           14
Little Arkansas Creek.........     10270101         39.24         96.77         39.29         96.85           13
Little Kitten Creek...........     10270101         39.18         96.62         39.23         96.64           16
Mulberry Creek................     10270101         38.83         96.82         38.75         96.79           20
Ralls Creek...................     10270101         38.86         96.79         38.8          96.74           21
Sevenmile Creek...............     10270101         39.13         96.65         39.21         96.82            5
Swede Creek...................     10270101         39.03         96.6          39.08         96.56           17
----------------------------------------------------------------------------------------------------------------
                                             Subbasin: Middle Kansas
----------------------------------------------------------------------------------------------------------------
Adams Creek...................     10270102         39.27         96.25         39.42         96.32           53
Bartlett Creek................     10270102         39.32         96.06         39.4          96.11           55
*Big Elm Creek................     10270102         39.27         95.76         39.35         95.73           90
Blackjack Creek...............     10270102         39.19         96.42         39.24         96.41           64
Blacksmith Creek..............     10270102         39.06         95.84         38.98         95.85          102
Bourbonais Creek..............     10270102         39.12         96.02         39.27         96.08           63
Brush Creek...................     10270102         39.26         96.34         39.38         96.33           57
Coal Creek....................     10270102         39.53         96.1          39.64         96.14           46
Coryell Creek.................     10270102         39.21         95.95         39.25         95.92           94
Cow Creek.....................     10270102         39.51         96.13         39.46         96.1            45
*Crow Creek...................     10270102         39.32         95.91         39.41         95.85           86
Darnells Creek................     10270102         39.4          96.4          39.44         96.32           51
Dog Creek.....................     10270102         39.07         96.11         39.02         96.07           78
Doyle Creek...................     10270102         39.15         96.05         39.27         96.09           69

[[Page 41239]]

 
Dry Creek.....................     10270102         39.07         96.02         39            96.03           79
*Dutch Creek..................     10270102         39.24         95.88         39.31         95.82           92
Elm Creek.....................     10270102         39.16         95.59         39.2          95.66           98
Elm Creek.....................     10270102         39.08         95.53         39.14         95.55          103
Elm Slough....................     10270102         39.25         96.33         39.21         96.39           58
Emmons Creek..................     10270102         39.16         96.38         39.09         96.4            66
French Creek..................     10270102         39.5          96.15         39.64         96.17           19
Gilson Creek..................     10270102         39.58         96.22         39.62         96.23           47
Hendricks Creek...............     10270102         39.03         96.27         39.07         96.4            73
Hise Creek....................     10270102         39.48         96.16         39.52         96.28           43
Indian Creek..................     10270102         39.33         96.22         39.48         96.3            20
*James Creek..................     10270102         39.26         95.89         39.33         95.82           87
Jim Creek.....................     10270102         39.39         96.18         39.48         96.27           52
Johnson Creek.................     10270102         38.96         96.02         39.01         96.06           84
Kuenzli Creek.................     10270102         39.06         96.2          38.94         96.13           82
Little Cross Creek............     10270102         39.28         96.03         39.42         95.98           61
Little Muddy Creek............     10270102         39.09         95.6          39.17         95.64           99
Loire Creek...................     10270102         38.98         96.33         39.06         96.4            80
Lost Creek....................     10270102         39.19         96.16         39.34         96.16           60
Messhoss Creek................     10270102         39.11         95.77         39.19         95.74           96
Mud Creek.....................     10270102         39.55         96.21         39.57         96.26           44
Mud Creek.....................     10270102         39.32         96.47         39.34         96.53           56
Muddy Creek, West Fork........     10270102         39.22         95.62         39.3          95.71           93
Mulberry Creek................     10270102         39.6          96.2          39.65         96.22           42
Mulberry Creek................     10270102         39.07         96.14         39.12         96.25           77
Nehring Creek.................     10270102         38.95         96.24         38.89         96.11           81
Paw Paw Creek.................     10270102         39.05         96.23         39.11         96.3            75
Pomeroy Creek.................     10270102         39.34         96.21         39.35         96.16           59
Post Creek....................     10270102         39.09         95.91         39.01         95.98          101
Pretty Creek..................     10270102         39.05         96.25         39.08         96.32           74
Rock Creek....................     10270102         39.21         96.23         39.24         96.25           15
Rock Creek....................     10270102         39.24         96.25         39.27         96.4            21
Rock Creek....................     10270102         39.27         96.4          39.4          96.51           23
Rock Creek, East Fork.........     10270102         39.27         96.4          39.49         96.32           22
Ross Creek....................     10270102         38.99         95.94         38.98         95.98           35
Salt Creek....................     10270102         39.24         95.97         39.3          95.95           88
Sand Creek....................     10270102         39.19         96.46         39.23         96.45           65
Shunganunga Creek, South           10270102         39.02         95.71         38.94         95.7           106
 Branch.......................
Snake Creek...................     10270102         39.16         95.96         39.21         96.01           95
Snokomo Creek.................     10270102         39.06         96.15         38.95         96.12           85
Spring Creek..................     10270102         39.52         96.11         39.46         96.07           48
Spring Creek..................     10270102         39.41         96.17         39.36         96.14           54
Spring Creek..................     10270102         39.06         96.19         39.1          96.23           76
Spring Creek..................     10270102         39.06         95.46         39.02         95.5           105
Sullivan Creek................     10270102         39.25         95.99         39.34         95.96           89
Tecumseh Creek................     10270102         39.05         95.57         38.96         95.56          107
Turkey Creek..................     10270102         39.12         96.04         39.12         96.16           71
Unnamed Stream................     10270102         39.18         95.8          39.24         95.8             8
Vassar Creek..................     10270102         39.08         95.91         39            95.96          100
*Walnut Creek.................     10270102         39.16         95.86         39.28         95.81           91
Wells Creek...................     10270102         39.19         96.17         39.13         96.27           68
Whetstone Creek...............     10270102         39.06         95.53         38.99         95.55          104
Wilson Creek..................     10270102         39.34         96.43         39.47         96.45           50
Wolf Creek....................     10270102         39.55         96.04         39.6          96              49
----------------------------------------------------------------------------------------------------------------
                                               Subbasin: Delaware
----------------------------------------------------------------------------------------------------------------
Banner Creek..................     10270103         39.47         95.72         39.44         95.87           45
Barnes Creek..................     10270103         39.69         95.86         39.69         95.94           39
*Bills Creek..................     10270103         39.47         95.65         39.41         95.79           47
Brush Creek...................     10270103         39.64         95.43         39.63         95.4            44
Brush Creek...................     10270103         39.34         95.45         39.35         95.36           54
Burr Oak Branch...............     10270103         39.22         95.34         39.19         95.31            8
Catamount Creek...............     10270103         39.42         95.52         39.39         95.57           49
Cedar Creek, North............     10270103         39.34         95.56         39.39         95.7            46
Claywell Creek................     10270103         39.18         95.53         39.23         95.53           56
Clear Creek...................     10270103         39.62         95.52         39.66         95.38           19
Coal Creek....................     10270103         39.38         95.49         39.5          95.43           50
Grasshopper Creek.............     10270103         39.56         95.53         39.62         95.52           18
Grasshopper Creek.............     10270103         39.62         95.52         39.76         95.63           20
*Gregg Creek..................     10270103         39.68         95.66         39.88         95.86           24
Honey Creek...................     10270103         39.24         95.31         39.3          95.28           55

[[Page 41240]]

 
Little Grasshopper Creek......     10270103         39.54         95.52         39.64         95.33           16
Little Wild Horse Creek.......     10270103         39.08         95.4          39.17         95.34           57
Mission Creek.................     10270103         39.65         95.52         39.71         95.53           40
Mosquito Creek................     10270103         39.55         95.7          39.67         95.96           42
Nebo Creek....................     10270103         39.45         95.54         39.43         95.65           48
Negro Creek...................     10270103         39.54         95.53         39.59         95.64           43
Otter Creek...................     10270103         39.63         95.52         39.71         95.44           41
*Plum Creek...................     10270103         39.69         95.69         39.81         95.77           36
Rock Creek....................     10270103         39.17         95.52         39.29         95.61           34
Rock Creek....................     10270103         39.32         95.44         39.33         95.34           53
*Squaw Creek..................     10270103         39.71         95.67         39.79         95.69           38
Straight Creek................     10270103         39.48         95.55         39.57         95.86           28
Tick Creek....................     10270103         39.2          95.55         39.27         95.55           52
Unnamed Stream................     10270103         39.48         95.76         39.47         95.82           31
Walnut Creek..................     10270103         39.35         95.46         39.4          95.34           51
Wolfley Creek.................     10270103         39.64         95.76         39.76         95.91           27
----------------------------------------------------------------------------------------------------------------
                                             Subbasin: Lower Kansas
----------------------------------------------------------------------------------------------------------------
Baldwin Creek.................     10270104         39.01         95.27         38.97         95.36           69
Brush Creek...................     10270104         39.25         95.08         39.29         95.06           49
Brush Creek, WEST.............     10270104         39.31         95.11         39.33         95.19           46
Buttermilk Creek..............     10270104         39.36         95.11         39.38         95.19           44
Camp Creek....................     10270104         39.48         95.23         39.57         95.29           41
Camp Creek....................     10270104         38.96         94.92         38.88         94.92           74
Captain Creek.................     10270104         38.97         95.04         38.76         95.13           72
Chicken Creek.................     10270104         38.87         95.34         38.81         95.33           79
Clear Creek...................     10270104         39.02         94.82         38.97         94.89          383
Cow Creek.....................     10270104         39.03         95.1          39.08         95.1            58
Crooked Creek.................     10270104         39.46         95.19         39.43         95.24           10
Crooked Creek.................     10270104         39.43         95.24         39.3          95.3            12
Dawson Creek..................     10270104         39.33         95.11         39.35         95.21           45
Elk Creek.....................     10270104         38.89         95.48         38.78         95.54           68
Fall Creek....................     10270104         39.23         95.07         39.23         95.13           52
Hanson Creek..................     10270104         38.96         94.97         38.96         94.98          436
Hanson Creek..................     10270104         38.96         94.98         38.94         95.01          437
Hog Creek.....................     10270104         39.13         95.01         39.09         94.96           54
Howard Creek..................     10270104         39.41         95.24         39.36         95.22           43
Hulls Branch..................     10270104         39.4          95.26         39.34         95.24           42
Indian Creek..................     10270104         39.29         95.2          39.35         95.22           48
Jarbalo Creek.................     10270104         39.19         95.05         39.19         95.14           51
Kent Creek....................     10270104         38.97         95.12         39.02         95.15           73
Kill Creek....................     10270104         38.98         94.96         38.82         94.97           37
Little Cedar Creek............     10270104         38.92         94.89         38.85         94.83           76
Little Mill Creek.............     10270104         39.01         94.82         38.95         94.75           78
Little Turkey Creek...........     10270104         39.06         94.77         39.12         94.84           62
Little Wakarusa Creek.........     10270104         38.93         95.14         38.82         95.12           71
Mission Creek, East...........     10270104         39.06         94.83         39.12         94.85           61
Ninemile Creek................     10270104         39.01         95.03         39.1          95.16           15
Ninemile Creek................     10270104         39.1          95.16         39.2          95.22           17
Oakley Creek..................     10270104         39.04         95.36         38.99         95.36           56
Plum Creek....................     10270104         39.1          95.26         39.16         95.25           50
Prairie Creek.................     10270104         39.25         95.2          39.21         95.22           47
Rock Creek....................     10270104         38.87         95.43         38.77         95.53           35
Scatter Creek.................     10270104         39.28         95.17         39.25         95.25           13
Spoon Creek...................     10270104         38.92         94.98         38.81         95.01           75
Stone Horse Creek.............     10270104         39.03         95.33         39.15         95.32           57
Stranger Creek................     10270104         39.1          95.02         39.23         95.07            7
Stranger Creek................     10270104         39.28         95.11         39.46         95.19            8
Stranger Creek................     10270104         39.46         95.19         39.57         95.38            9
Tonganoxie Creek..............     10270104         39.1          95.02         39.2          95.19           14
Tooley Creek..................     10270104         39.05         94.78         39.04         94.78          379
Turkey Creek..................     10270104         39.08         94.62         38.97         94.72           77
Unnamed Stream................     10270104         39.43         95.24         39.43         95.31           11
Unnamed Stream................     10270104         39.1          95.16         39.15         95.14           16
Wakarusa River, Middle Branch.     10270104         38.9          95.85         38.93         95.92           64
Wakarusa River, South Branch..     10270104         38.89         95.82         38.89         96.03           63
Washington Creek..............     10270104         38.92         95.29         38.8          95.41           36
Yankee Tank Creek.............     10270104         38.92         95.27         38.97         95.35           70
----------------------------------------------------------------------------------------------------------------
                                            Subbasin: Lower Big Blue
----------------------------------------------------------------------------------------------------------------
Ackerman Creek................     10270205         39.7          96.36         39.82         96.35           49

[[Page 41241]]

 
Black Vermillion River, Clear      10270205         39.65         96.48         39.52         96.31            9
 Fork.........................
Black Vermillion River, North      10270205         39.72         96.33         39.93         96.34           15
 Fork.........................
Black Vermillion River, South      10270205         39.7          96.38         39.55         96.31           12
 Fork.........................
Bluff Creek...................     10270205         39.54         96.55         39.49         96.44          K37
Bommer Creek..................     10270205         39.93         96.62         39.93         96.56           40
Busksnort Creek...............     10270205         39.48         96.49         39.49         96.53          K33
Carter Creek..................     10270205         39.55         97.02         39.62         97              59
Cedar Creek...................     10270205         39.67         96.45         39.64         96.37           56
Corndodger Creek..............     10270205         39.62         96.53         39.72         96.55           52
De Shazer Creek...............     10270205         39.65         96.49         39.57         96.46           55
Deadman Creek.................     10270205         39.5          96.99         39.61         96.98           60
Deer Creek....................     10270205         39.9          96.65         40            96.67           36
Dog Walk Creek................     10270205         39.75         96.46         39.74         96.53           53
Dutch Creek...................     10270205         39.78         96.68         39.81         96.74           44
Elm Creek.....................     10270205         39.68         96.63         39.78         96.57           46
Elm Creek, North..............     10270205         39.97         96.6          39.95         96.46           41
Fancy Creek, North Fork.......     10270205         39.49         96.88         39.62         96.93           61
Fancy Creek, West.............     10270205         39.47         96.76         39.63         97.06           29
Game Fork.....................     10270205         39.62         96.58         39.59         96.7            54
Hop Creek.....................     10270205         39.8          96.68         39.87         96.78           43
Indian Creek..................     10270205         39.93         96.72         40.01         96.7            37
Jim Creek.....................     10270205         39.62         96.44         39.61         96.36           57
Johnson Fork..................     10270205         39.66         96.47         39.73         96.54           51
Kearney Branch................     10270205         39.64         96.32         39.65         96.25           58
Lily Creek....................     10270205         39.82         96.6          39.87         96.58           39
Little Indian Creek...........     10270205         39.95         96.77         40.02         96.75           35
Little Timber Creek...........     10270205         39.7          96.41         39.82         96.36           48
Meadow Creek..................     10270205         39.94         96.75         40            96.74           34
Mission Creek.................     10270205         40            96.6          40            96.46           22
Murdock Creek.................     10270205         40            96.46         39.97         96.4            42
Otter Creek...................     10270205         39.47         96.83         39.39         96.93           67
Otter Creek, North............     10270205         39.47         96.77         39.58         96.82           62
Perkins Creek.................     10270205         39.76         96.46         39.76         96.56           47
Phiel Creek...................     10270205         39.25         96.59         39.24         96.65           68
Raemer Creek..................     10270205         39.9          96.7          39.88         96.78           33
Robidoux Creek................     10270205         39.69         96.44         39.99         96.36           16
Schell Creek..................     10270205         39.82         96.62         39.78         96.59           45
School Branch.................     10270205         39.47         96.82         39.57         96.85           63
Scotch Creek..................     10270205         39.9          96.63         39.91         96.57           38
Spring Creek..................     10270205         39.83         96.66         39.93         96.47           19
Spring Creek..................     10270205         39.55         96.59         39.43         96.53           65
Timber Creek..................     10270205         39.54         96.62         39.59         96.67           64
Weyer Creek...................     10270205         39.77         96.24         39.74         96.11           50
----------------------------------------------------------------------------------------------------------------
                                           Subbasin: Upper Little Blue
----------------------------------------------------------------------------------------------------------------
Dry Creek.....................     10270206         40.01         97.68         39.97         97.71           41
----------------------------------------------------------------------------------------------------------------
                                           Subbasin: Lower Little Blue
----------------------------------------------------------------------------------------------------------------
Ash Creek.....................     10270207         39.81         97.04         39.75         97.14           36
Beaver Creek..................     10270207         39.79         96.88         39.72         96.96           38
Bolling Creek.................     10270207         39.74         96.82         39.81         96.83           42
Bowman Creek..................     10270207         39.87         97.24         40            97.32           21
Buffalo Creek.................     10270207         39.84         97.14         39.78         97.19           32
Camp Creek....................     10270207         39.81         97.06         39.76         97.15           35
Camp Creek....................     10270207         39.66         96.81         39.71         96.95           44
Cedar Creek...................     10270207         39.86         96.89         39.86         96.82           40
Cherry Creek..................     10270207         39.85         97.35         39.94         97.44           25
Coon Creek....................     10270207         39.7          96.76         39.7          97.07           23
Fawn Creek....................     10270207         39.69         96.7          39.61         96.74           45
Gray Branch...................     10270207         39.86         97.23         39.99         97.25           27
Humphrey Branch...............     10270207         40.01         97.44         39.98         97.41           24
Iowa Creek....................     10270207         39.86         97.2          39.8          97.26           34
Joy Creek.....................     10270207         39.94         96.97         40.01         97.12           13
Jones Creek...................     10270207         39.87         97.22         39.95         97.23           29
Lane Branch...................     10270207         39.81         96.89         39.84         96.97           39
Malone Creek..................     10270207         39.78         96.87         39.73         96.92           37
Melvin Creek..................     10270207         39.85         97.16         39.79         97.2            33
Mercer Creek..................     10270207         39.75         96.83         39.72         96.89           43
Mill Creek, South Fork........     10270207         39.85         97.33         39.85         97.52           31
Myer Creek....................     10270207         39.86         97.29         39.99         97.35           26

[[Page 41242]]

 
Riddle Creek..................     10270207         39.84         97.13         40            97.2            17
Rose Creek....................     10270207         40            97.51         39.97         97.71           12
Salt Creek....................     10270207         39.85         97.18         39.99         97.21           19
School Creek..................     10270207         40            97.01         40            97.03           49
Silver Creek..................     10270207         40.02         97.23         39.99         97.23           28
Spring Creek..................     10270207         39.89         97.01         40            97.13           15
Spring Creek..................     10270207         39.91         97.1          39.96         97.11           30
Walnut Creek..................     10270207         39.72         96.77         39.86         96.79           41
----------------------------------------------------------------------------------------------------------------
                                              Basin: Lower Arkansas
                                              Subbasin: Rattlesnake
----------------------------------------------------------------------------------------------------------------
Bear Creek....................     11030009         38.05         98.82         37.98         98.9             8
Little Wild Horse Creek.......     11030009         38.04         98.84         37.95         98.97            6
Spring Creek..................     11030009         37.97         98.81         37.92         98.91            7
Wildhorse Creek...............     11030009         38.06         98.74         37.95         99.05            2
----------------------------------------------------------------------------------------------------------------
                                               Subbasin: Gar-Peace
----------------------------------------------------------------------------------------------------------------
Gar Creek.....................     11030010         37.9          97.69         37.86         97.83            8
----------------------------------------------------------------------------------------------------------------
                                                  Subbasin: Cow
----------------------------------------------------------------------------------------------------------------
Blood Creek...................     11030011         38.48         98.7          38.59         99.04           15
Calf Creek....................     11030011         38.44         98.43         38.59         98.48           16
Deception Creek...............     11030011         38.48         98.68         38.65         98.79           13
Dry Creek.....................     11030011         38.24         98.09         38.37         98.08           22
Jarvis Creek..................     11030011         38.27         98.12         38.4          98.12           19
Little Cheyenne Creek.........     11030011         38.45         98.48         38.44         98.63            7
Little Cow Creek..............     11030011         38.31         98.19         38.55         98.24            2
Lost Creek....................     11030011         38.42         98.33         38.61         98.3            17
Owl Creek.....................     11030011         38.31         98.18         38.43         98.16           18
Plum Creek....................     11030011         38.44         98.36         38.62         98.51            4
Salt Creek....................     11030011         38.31         98.21         38.39         98.18           21
Spring Creek..................     11030011         38.35         98.29         38.32         98.42           20
----------------------------------------------------------------------------------------------------------------
                                            Subbasin: Little Arkansas
----------------------------------------------------------------------------------------------------------------
Beaver Creek..................     11030012         38.11         97.32         38.14         97.24           26
Bull Creek....................     11030012         38.35         97.65         38.43         97.67           24
Dry Creek.....................     11030012         38.34         97.97         38.35         98.05           22
Emma Creek....................     11030012         37.94         97.44         38            97.45            6
Emma Creek....................     11030012         38            97.45         38.27         97.36            7
Emma Creek, West..............     11030012         38            97.45         38.37         97.4             8
Gooseberry Creek..............     11030012         37.91         97.35         37.95         97.3            17
Horse Creek...................     11030012         38.42         98.02         38.52         98.08           19
Jester Creek..................     11030012         37.85         97.4          38.06         97.28            2
Jester Creek, East Fork.......     11030012         37.97         97.32         38.05         97.28           18
Kisiwa Creek..................     11030012         37.96         97.47         38.02         97.79           15
Lone Tree Creek...............     11030012         38.27         97.92         38.41         97.91           20
Mud Creek.....................     11030012         37.98         97.39         38.08         97.36           16
Running Turkey Creek..........     11030012         38.27         97.62         38.42         97.47           25
Salt Creek....................     11030012         38.35         97.97         38.43         97.96           21
Sun Creek.....................     11030012         38.12         97.6          38.25         97.65           11
Sun Creek.....................     11030012         38.25         97.65         38.45         97.58           13
Turkey Creek..................     11030012         38.25         97.65         38.45         97.55           12
----------------------------------------------------------------------------------------------------------------
                                         Subbasin: Middle Arkansas-Slate
----------------------------------------------------------------------------------------------------------------
Antelope Creek................     11030013         37.21         97.27         37.3          97.32           25
Badger Creek..................     11030013         37.18         97.23         37.13         97.28           31
Beaver Creek..................     11030013         37.23         97.38         37.32         97.34           29
Beaver Creek..................     11030013         37.16         97.1          37.25         97.07           33
Big Slough....................     11030013         37.6          97.39         37.78         97.73           11
Big Slough, South Fork........     11030013         37.83         97.6          37.77         97.72           35
Bitter Creek..................     11030013         37.41         97.2          37.48         97.16           28
Dry Creek.....................     11030013         37.72         97.49         37.7          97.55           15
Dry Creek.....................     11030013         37.61         97.41         37.66         97.55           16
Gypsum Creek..................     11030013         37.64         97.31         37.75         97.23            5
Hargis Creek..................     11030013         37.23         97.39         37.34         97.35           24
Lost Creek....................     11030013         37.26         97.16         37.27         97.18           23
Negro Creek...................     11030013         37.08         97.09         37.04         97.14           20
Oak Creek.....................     11030013         37.28         97.43         37.36         97.41           26

[[Page 41243]]

 
Salt Creek....................     11030013         37.11         97.13         37.09         97.24           22
Spring Creek..................     11030013         37.08         97.09         37.07         97.17           19
Spring Creek..................     11030013         37.1          97.1          37.13         97.05           21
Spring Creek..................     11030013         37.3          97.46         37.4          97.5            27
Spring Creek..................     11030013         37.21         97.15         37.36         97.1            34
Spring Creek..................     11030013         37.51         97.27         37.61         97.18           37
Winser Creek..................     11030013         37.19         97.23         37.29         97.27           32
----------------------------------------------------------------------------------------------------------------
                                         Subbasin: North Fork Ninnescah
----------------------------------------------------------------------------------------------------------------
Crow Creek....................     11030014         37.85         97.92         37.92         97.93           11
Dooleyville Creek.............     11030014         37.91         98.52         37.96         98.64            8
Goose Creek...................     11030014         37.83         98.18         37.71         98.35           10
Ninnescah River, North Fork...     11030014         37.57         97.71         37.73         97.79            1
Ninnescah River, North Fork...     11030014         37.82         97.9          37.84         98.15            5
Ninnescah River, North Fork...     11030014         37.84         98.15         37.84         98.75            6
Red Rock Creek................     11030014         37.87         97.99         37.97         98.1            12
Rock Creek....................     11030014         37.7          97.78         37.78         97.74           13
Silver Creek..................     11030014         37.84         98.15         37.76         98.59            7
Spring Creek..................     11030014         37.62         97.74         37.76         97.71           14
Wolf Creek....................     11030014         37.83         98.32         37.83         98.41            9
----------------------------------------------------------------------------------------------------------------
                                         Subbasin: South Fork Ninnescah
----------------------------------------------------------------------------------------------------------------
Coon Creek....................     11030015         37.66         98.53         37.61         98.58            9
Coon Creek....................     11030015         37.55         97.9          37.53         98              17
Hunter Creek..................     11030015         37.64         98.08         37.55         98.2            14
Mead Creek....................     11030015         37.63         98.33         37.56         98.37           10
Mod Creek.....................     11030015         37.57         97.72         37.54         97.8            19
Natrona Creek.................     11030015         37.66         98.63         37.72         98.69          K38
Negro Creek...................     11030015         37.63         98.05         37.57         98.08           13
Nester Creek..................     11030015         37.6          97.81         37.7          97.87           15
Ninnescah River, West Branch       11030015         37.64         98.77         37.62         98.95            5
 South Fork...................
Painter Creek.................     11030015         37.64         98.34         37.57         98.65            7
Pat Creek.....................     11030015         37.63         98.31         37.56         98.33           11
Petyt Creek...................     11030015         37.63         98.23         37.56         98.29           12
Sand Creek....................     11030015         37.59         97.95         37.55         98.1            18
Spring Creek..................     11030015         37.7          97.98         37.78         98               8
Wild Run Creek................     11030015         37.62         98.2          37.54         98.22           16
----------------------------------------------------------------------------------------------------------------
                                               Subbasin: Ninnescah
----------------------------------------------------------------------------------------------------------------
Afton Creek...................     11030016         37.6          97.64         37.61         97.63            5
Clearwater Creek..............     11030016         37.55         97.63         37.6          97.64            4
Clearwater Creek..............     11030016         37.6          97.64         37.72         97.66            7
Dry Creek.....................     11030016         37.51         97.42         37.59         97.46           16
Elm Creek.....................     11030016         37.43         97.38         37.41         97.47           10
Garvey Creek..................     11030016         37.47         97.43         37.42         97.46           11
Sand Creek....................     11030016         37.54         97.69         37.5          97.93           14
Silver Creek..................     11030016         37.47         97.47         37.42         97.53           12
Spring Creek..................     11030016         37.46         97.38         37.58         97.53            2
Spring Creek..................     11030016         37.51         97.56         37.62         97.58           15
Turtle Creek..................     11030016         37.48         97.49         37.43         97.53           13
----------------------------------------------------------------------------------------------------------------
                                               Subbasin: Kaw Lake
----------------------------------------------------------------------------------------------------------------
Blue Branch...................     11060001         37.3          96.69         37.34         96.72           30
Bullington Creek..............     11060001         37.23         96.71         37.26         96.61           28
Cedar Creek...................     11060001         37.31         96.68         37.4          96.53           32
Chilocco Creek................     11060001         36.98         97.06         37.05         97.16           19
Crabb Creek...................     11060001         37.13         96.78         37.19         96.61           29
Ferguson Creek................     11060001         37.46         96.57         37.45         96.52           38
Franklin Creek................     11060001         37.45         96.58         37.5          96.61           35
Gardners Branch...............     11060001         37.39         96.63         37.39         96.56           39
Goose Creek...................     11060001         37.39         96.64         37.46         96.64           34
Myers Creek...................     11060001         36.97         96.81         37.03         96.74           24
Otter Creek...................     11060001         37.02         96.9          37.05         96.83           20
Pebble Creek..................     11060001         37.18         96.85         37.23         96.77           26
Plum Creek....................     11060001         37.28         96.78         37.32         96.73           33
Riley Creek...................     11060001         37.46         96.57         37.47         96.51           37
School Creek..................     11060001         37.26         96.69         37.29         96.63           31
Shellrock Creek...............     11060001         37.01         96.81         37.07         96.75           22
Silver Creek..................     11060001         37.06         96.87         37.34         96.76           17

[[Page 41244]]

 
Snake Creek...................     11060001         37.22         96.83         37.31         96.82           25
Spring Creek..................     11060001         36.97         96.7          37.08         96.72           21
Turkey Creek..................     11060001         37.2          96.71         37.26         96.75           27
Wagoner Creek.................     11060001         37.47         96.56         37.52         96.5            36
----------------------------------------------------------------------------------------------------------------
                                       Subbasin: Upper Salt Fork Arkansas
----------------------------------------------------------------------------------------------------------------
Ash Creek.....................     11060002         37.15         98.99         37.2          98.93           20
Big Sandy Creek...............     11060002         37.03         98.86         37.24         98.88            5
Cave Creek....................     11060002         37.07         98.97         37.02         99.05           28
Deadman Creek.................     11060002         37.13         98.85         37.24         98.9            22
Dog Creek.....................     11060002         37.12         99.08         37.17         99.11           29
Hackberry Creek...............     11060002         36.98         98.81         37.16         98.8            23
Indian Creek..................     11060002         37.12         99.04         37.28         99.16            9
Inman Creek...................     11060002         37.19         99            37.27         98.94           21
Mustang Creek.................     11060002         37.09         99.14         36.97         99.19           31
Nescatunga Creek, East Branch.     11060002         37.18         99.21         37.3          99.21           27
Red Creek.....................     11060002         37.11         99.05         36.98         99.11           16
Spring Creek..................     11060002         37.32         99.12         37.39         99.16           24
Wildcat Creek.................     11060002         37.12         99.09         37.22         99.13           12
Yellowstone Creek.............     11060002         36.99         98.84         36.98         98.86           17
----------------------------------------------------------------------------------------------------------------
                                            Subbasin: Medicine Lodge
----------------------------------------------------------------------------------------------------------------
Amber Creek...................     11060003         37.38         98.59         37.49         98.64           12
Antelope Creek................     11060003         37.24         98.56         37.31         98.51           22
Bear Creek....................     11060003         37.36         98.88         37.3          98.99           13
Bitter Creek..................     11060003         37.31         98.73         37.24         98.79           18
Cedar Creek...................     11060003         37.28         98.63         37.2          98.8            20
Cottonwood Creek..............     11060003         37.36         98.85         37.43         98.85           16
Crooked Creek.................     11060003         37.41         98.65         37.5          98.67           11
Litle Mule Creek..............     11060003         36.93         98.52         37.19         98.77            9
Dry Creek.....................     11060003         37.14         98.66         37.19         98.74           21
Elm Creek, East Branch South..     11060003         37.43         98.77         37.54         98.83           10
Elm Creek, North Branch.......     11060003         37.43         98.68         37.56         98.78            4
Elm Creek, South Branch.......     11060003         37.43         98.68         37.56         98.89            5
Little Bear Creek.............     11060003         37.31         98.76         37.22         98.81           19
Medicine Lodge River, North        11060003         37.45         99.2          37.53         99.28           24
 Branch.......................
Mulberry Creek................     11060003         37.37         98.89         37.5          98.89           14
Otter Creek...................     11060003         37.43         99.12         37.39         99.16           25
Puckett Creek.................     11060003         37.35         98.84         37.31         98.87           15
Sand Creek....................     11060003         37.33         98.76         37.4          98.75           17
Soldier Creek.................     11060003         37.44         99.04         37.61         99.04           27
Stink Creek...................     11060003         36.94         98.43         37.05         98.53           28
Turkey Creek..................     11060003         37.37         98.92         37.6          98.99            7
Wilson Slough.................     11060003         37.17         98.54         37.23         98.52           23
----------------------------------------------------------------------------------------------------------------
                                       Subbasin: Lower Salt Fork Arkansas
----------------------------------------------------------------------------------------------------------------
Camp Creek....................     11060004         37.13         98.24         37.27         98.25           68
Cooper Creek..................     11060004         36.97         98.06         37.07         98.06           71
Crooked Creek.................     11060004         36.97         97.93         37.04         97.92           24
Little Sandy Creek............     11060004         36.96         98.27         37.37         98.49           39
Little Sandy Creek, East           11060004         37.24         98.41         37.37         98.5            65
 Branch.......................
Osage Creek...................     11060004         36.9          97.79         37            97.8            17
Plum Creek....................     11060004         37.06         98.22         37.14         98.18           70
Pond Creek....................     11060004         36.98         97.87         37.04         97.89           18
Rush Creek....................     11060004         36.98         98.19         37.01         98.12           69
Salty Creek...................     11060004         36.99         98.3          37.18         98.45           40
Sandy Creek...................     11060004         36.98         98.21         37.36         98.33           37
Sandy Creek, West.............     11060004         37.2          98.32         37.36         98.38           56
Spring Creek..................     11060004         37.16         98.35         37.31         98.38           66
Unnamed Stream................     11060004         36.97         97.96         37.03         97.99           25
----------------------------------------------------------------------------------------------------------------
                                               Subbasin: Chikaskia
----------------------------------------------------------------------------------------------------------------
Allen Creek...................     11060005         37.47         98.28         37.55         98.36           40
Baehr Creek...................     11060005         37.08         97.86         37.22         97.9            22
Beaver Creek..................     11060005         37.2          97.63         37.35         97.62           28
Beaver Creek..................     11060005         37.12         98.06         37.17         98.17           46
Big Spring Creek..............     11060005         37.42         97.95         37.52         97.98           34
Bitter Creek..................     11060005         36.95         97.26         37.13         97.28            4
Bitter Creek, East............     11060005         36.99         97.23         37.07         97.19           16

[[Page 41245]]

 
Blue Stem Creek...............     11060005         37.45         98.01         37.53         98.04           48
Chicken Creek.................     11060005         37.4          98.5          37.48         98.54           36
Copper Creek..................     11060005         37.44         98.03         37.5          98.06           42
Dry Creek.....................     11060005         36.95         97.34         37.01         97.3            17
Duck Creek....................     11060005         37.43         97.97         37.53         98.02           32
Fall Creek....................     11060005         37            97.56         37.2          97.82           14
Fall Creek, East Branch.......     11060005         37.09         97.69         37.18         97.7            27
Goose Creek...................     11060005         37.41         98.3          37.44         98.35           38
Kemp Creek....................     11060005         37.46         98.26         37.51         98.27           49
Long Creek....................     11060005         37.18         97.56         37.26         97.54          529
Meridian Creek................     11060005         37            97.38         37.16         97.34           20
Prairie Creek.................     11060005         37.13         97.59         37.15         97.75          512
Prairie Creek, East...........     11060005         37.15         97.57         37.28         97.53          516
Prairie Creek, West...........     11060005         37.15         97.57         37.31         97.56          527
Red Creek.....................     11060005         37.44         98.07         37.54         98.18           43
Rock Creek....................     11060005         37.11         97.97         37.24         97.99           23
Rodgers Branch................     11060005         37.08         97.55         37.17         97.52           26
Rose Bud Creek................     11060005         37.45         98.08         37.54         98.09           44
Rush Creek....................     11060005         37.17         98.1          37.37         98.13           45
Sand Creek....................     11060005         37.44         98.2          37.58         98.79           11
Sand Creek, East..............     11060005         37.25         97.78         37.38         98.16           12
Sandy Creek...................     11060005         37.34         97.86         37.45         97.85           30
Shoo Fly Creek, East..........     11060005         37.09         97.44         37.17         97.4            19
Shore Creek...................     11060005         37.24         97.68         37.37         97.67           35
Silver Creek..................     11060005         37.25         97.69         37.37         97.7            29
Skunk Creek...................     11060005         37.39         98.37         37.45         98.44           39
Spring Branch.................     11060005         37.07         97.83         37.2          97.85           21
Wild Horse Creek..............     11060005         37.44         98.16         37.55         98.2             4
Wildcat Creek.................     11060005         37.1          97.95         37.03         98.02           24
----------------------------------------------------------------------------------------------------------------
                                            Basin: Marais Des Cygnes
                                        Subbasin: Upper Marais Des Cygnes
----------------------------------------------------------------------------------------------------------------
Appanoose Creek...............     10290101         38.62         95.33         38.77         95.49           16
Appanoose Creek, East.........     10290101         38.68         95.43         38.75         95.44           89
Batch Creek...................     10290101         38.8          95.97         38.87         96.04           86
Blue Creek....................     10290101         38.6          95.35         38.63         95.4            81
Bradshaw Creek................     10290101         38.21         95.25         38.15         95.28           75
Cedar Creek...................     10290101         38.33         95.26         38.16         95.47           66
Cherry Creek..................     10290101         38.24         95.47         38.22         95.53           74
Chicken Creek.................     10290101         38.69         96.05         38.81         96.09           70
Chicken Creek.................     10290101         38.52         95.67         38.57         95.68           93
Coal Creek....................     10290101         38.59         95.4          38.49         95.44           48
Dry Creek.....................     10290101         38.36         95.2          38.42         95.21           57
Dry Creek.....................     10290101         38.56         95.52         38.58         95.63           95
Duck Creek....................     10290101         38.54         95.95         38.64         96.16           41
Eightmile Creek...............     10290101         38.62         95.29         38.69         95.34           13
Frog Creek....................     10290101         38.52         95.61         38.36         95.81           42
Hard Fish Creek...............     10290101         38.59         95.47         38.52         95.47           47
Hickory Creek.................     10290101         38.58         95.11         38.68         95.03            8
Hill Creek....................     10290101         38.6          96.05         38.69         96.2            71
Iantha Creek..................     10290101         38.34         95.34         38.42         95.51           62
Jersey Creek..................     10290101         38.6          95.74         38.65         95.79           76
Kenoma Creek..................     10290101         38.32         95.38         38.41         95.52           64
Little Rock Creek.............     10290101         38.45         95.59         38.4          95.55           73
Long Creek....................     10290101         38.52         95.61         38.46         95.69          K36
Locust Creek..................     10290101         38.77         96.12         38.79         96.2            69
Middle Creek..................     10290101         38.57         95.13         38.48         95.44           50
Mosquito Creek................     10290101         38.45         95.07         38.48         95.14           52
Mud Creek.....................     10290101         38.57         95.33         38.54         95.39           49
Mud Creek.....................     10290101         38.7          95.78         38.65         95.83           78
Mud Creek.....................     10290101         38.51         95.92         38.49         96              91
Mute Creek....................     10290101         38.6          95.8          38.59         95.91           92
Ottawa Creek..................     10290101         38.59         95.16         38.63         95.19          K25
Plum Creek....................     10290101         38.5          94.95         38.59         94.99            2
Plum Creek....................     10290101         38.72         95.86         38.7          95.94           79
Popcorn Creek.................     10290101         38.69         95.73         38.77         95.73           87
Pottawatomie Creek, North Fork     10290101         38.32         95.38         38.35         95.58           65
Pottawatomie Creek, South Fork     10290101         38.38         95.14         38.13         95.15           67
Rock Creek....................     10290101         38.53         95.58         38.35         95.57           43
Rock Creek....................     10290101         38.6          95.23         38.53         95.34           97
Sac Branch, South Fork........     10290101         38.43         95.11         38.44         95.2            54

[[Page 41246]]

 
Sac Creek.....................     10290101         38.34         95.3          38.47         95.44           60
Salt Creek....................     10290101         38.59         95.51         38.73         95.99           29
Sand Creek....................     10290101         38.65         95.3          38.69         95.29           82
Smith Creek...................     10290101         38.71         95.81         38.69         95.92           77
Spring Creek..................     10290101         38.69         95.34         38.71         95.39           84
Switzler Creek................     10290101         38.71         95.79         38.84         95.92           80
Tauy Creek....................     10290101         38.59         95.16         38.83         95.27           11
Tauy Creek, West Fork.........     10290101         38.63         95.19         38.71         95.27          K26
Tequa Creek...................     10290101         38.54         95.54         38.49         95.52           44
Tequa Creek, East Branch......     10290101         38.49         95.52         38.48         95.45           46
Tequa Creek, South Branch.....     10290101         38.49         95.52         38.42         95.51           45
Thomas Creek..................     10290101         38.27         95.4          38.18         95.51           72
Turkey Creek..................     10290101         38.58         95.09         38.59         95.08            4
Turkey Creek..................     10290101         38.59         95.08         38.6          95.01            6
Unnamed Stream................     10290101         38.59         95.08         38.59         95.02            5
Walnut Creek..................     10290101         38.63         95.19         38.76         95.14           90
West Fork Eight Mile Creek....     10290101         38.71         95.35         38.79         95.4            88
Willow Creek..................     10290101         38.51         95.59         38.43         95.63           94
Wilson Creek..................     10290101         38.62         95.28         38.69         95.27           83
Wolf Creek....................     10290101         38.52         95.62         38.58         95.65           96
----------------------------------------------------------------------------------------------------------------
                                        Subbasin: Lower Marais Des Cygnes
----------------------------------------------------------------------------------------------------------------
Buck Creek....................     10290102         38.14         94.89         38.09         94.93           44
Bull Creek....................     10290102         38.73         94.96         38.82         94.98           99
Davis Creek...................     10290102         38.25         94.88         38.32         94.95           38
Dorsey Creek..................     10290102         38.56         94.85         38.63         94.82           22
Elm Branch....................     10290102         38.71         94.8          38.69         94.74           48
Elm Branch....................     10290102         38.47         94.81         38.54         94.77           53
Elm Creek.....................     10290102         38.36         94.83         38.34         94.96           40
Hushpuckney Creek.............     10290102         38.4          94.87         38.44         94.93           37
Jake Branch...................     10290102         38.5          94.71         38.55         94.71           54
Jordan Branch.................     10290102         38.48         94.91         38.45         94.92           36
Little Bull Creek.............     10290102         38.72         94.87         38.83         94.89           51
Little Sugar Creek............     10290102         38.24         94.74         38.11         95.01           33
Little Sugar Creek, North Fork     10290102         38.14         94.91         38.08         94.96           43
Martin Creek..................     10290102         38.76         94.81         38.77         95.06           26
Middle Creek..................     10290102         38.49         94.75         38.52         94.63           13
Middle Creek..................     10290102         38.37         94.81         38.34         95.09           30
Mound Creek...................     10290102         38.39         94.96         38.39         95.05           35
Richland Creek................     10290102         38.25         94.81         38.31         94.87           41
Rock Creek....................     10290102         38.7          94.99         38.78         95.07           27
Smith Branch..................     10290102         38.7          94.94         38.73         94.92           47
Spring Creek..................     10290102         38.73         94.87         38.78         94.82           50
Sugar Creek...................     10290102         38.2          95            38.24         95.17           42
Turkey Creek..................     10290102         38.24         94.85         38.19         94.91           45
Walnut Creek..................     10290102         38.49         94.75         38.54         94.74           14
Walnut Creek..................     10290102         38.12         94.6          38.11         94.67           34
Walnut Creek..................     10290102         38.58         94.89         38.62         94.99           52
WEA Creek, North..............     10290102         38.6          94.78         38.74         94.68           21
WEA Creek, South..............     10290102         38.55         94.86         38.56         94.85           18
WEA Creek, South..............     10290102         38.56         94.85         38.6          94.79           19
WEA Creek, South..............     10290102         38.6          94.78         38.59         94.63           20
----------------------------------------------------------------------------------------------------------------
                                             Subbasin: Little Osage
----------------------------------------------------------------------------------------------------------------
Clever Creek..................     10290103         38.02         94.76         37.95         94.79            7
Elk Creek.....................     10290103         38.02         94.77         38.1          94.86           11
Fish Creek....................     10290103         38.01         94.7          37.95         94.77            8
Indian Creek..................     10290103         38            94.64         38.11         94.68           12
Irish Creek...................     10290103         38.02         94.99         38.08         94.98            9
Laberdie Creek, East..........     10290103         38.02         94.72         38.1          94.71           13
Limestone Creek...............     10290103         37.99         94.96         37.93         95.1             5
Lost Creek....................     10290103         38.02         94.8          38.07         94.94           10
Reagan Branch.................     10290103         37.98         94.94         37.94         94.95            6
----------------------------------------------------------------------------------------------------------------
                                               Subbasin: Marmaton
----------------------------------------------------------------------------------------------------------------
Buck Run......................     10290104         37.7          94.6          37.74         94.72           46
Bunion Creek..................     10290104         37.79         94.9          37.72         94.88           39
Cedar Creek...................     10290104         37.82         94.79         37.87         94.84           41
Drywood Creek, Moores Branch..     10290104         37.77         94.53         37.79         94.7            17
Drywood Creek, West Fork......     10290104         37.7          94.6          37.6          94.8            19

[[Page 41247]]

 
Elm Creek.....................     10290104         37.79         94.82         37.73         94.87           15
Hinton Creek..................     10290104         37.77         94.96         37.74         95.06           38
Lath Branch...................     10290104         37.85         94.66         37.82         94.68           42
Little Mill Creek.............     10290104         37.91         94.81         37.96         94.82           34
Mill Creek....................     10290104         37.85         94.7          37.93         94.92            6
Owl Creek.....................     10290104         37.75         94.95         37.69         94.92           45
Paint Creek...................     10290104         37.8          94.82         37.79         94.82           13
Paint Creek...................     10290104         37.79         94.82         37.7          94.97           14
Prong Creek...................     10290104         37.73         94.97         37.72         94.99           44
Robinson Branch...............     10290104         37.83         94.87         37.87         94.87           40
Shiloh Creek..................     10290104         37.86         94.59         37.95         94.67           36
Sweet Branch..................     10290104         37.87         95.11         37.92         95.11           30
Tennyson Creek................     10290104         37.83         95            37.88         95.03           31
Turkey Creek..................     10290104         37.85         94.95         37.92         95              33
Walnut Creek..................     10290104         37.84         94.9          37.9          94.91           32
Walnut Creek..................     10290104         37.68         94.7          37.72         94.74           47
Wolfpen Creek.................     10290104         37.8          95.06         37.74         95.08           37
Wolverine Creek...............     10290104         37.87         94.68         37.93         94.72           35
----------------------------------------------------------------------------------------------------------------
                                              Subbasin: South Grand
----------------------------------------------------------------------------------------------------------------
Harless Creek.................     10290108         38.59         94.57         38.59         94.62           67
Poney Creek...................     10290108         38.64         94.61         38.68         94.64           48
----------------------------------------------------------------------------------------------------------------
                                                 Basin: Missouri
                                              Subbasin: Tarkio-Wolf
----------------------------------------------------------------------------------------------------------------
Cold Ryan Branch..............     10240005         39.79         95.22         39.74         95.19           70
Coon Creek....................     10240005         39.84         95.17         39.78         95.12           71
Halling Creek.................     10240005         39.78         95.29         39.7          95.32           68
Mill Creek....................     10240005         39.95         95.25         39.86         95.29           52
Rittenhouse Branch............     10240005         39.8          95.21         39.83         95.27           69
Spring Creek..................     10240005         39.91         95.3          39.92         95.34           65
Striker Branch................     10240005         39.86         95.18         39.84         95.24           72
Wolf River, Middle Fork.......     10240005         39.81         95.44         39.74         95.55           67
Wolf River, North Fork........     10240005         39.81         95.48         39.84         95.56           66
Wolf River, South Fork........     10240005         39.81         95.38         39.65         95.34           57
Unnamed Stream................     10240005         39.81         95.38         39.84         95.35           55
----------------------------------------------------------------------------------------------------------------
                                         Subbasin: South Fork Big Nemaha
----------------------------------------------------------------------------------------------------------------
Burger Creek..................     10240007         39.94         96.08         39.99         96.11           24
Deer Creek....................     10240007         39.92         96.03         39.93         95.85           18
Fisher Creek..................     10240007         39.82         96.06         39.79         96.12           28
Illinois Creek................     10240007         39.78         96.05         39.68         96.05           30
Rattlesnake Creek.............     10240007         40.05         95.86         39.98         95.87           27
Rock Creek....................     10240007         40.06         95.72         39.94         95.86           20
Tennessee Creek...............     10240007         39.81         96.06         39.73         95.94           29
Turkey Creek..................     10240007         39.95         96.04         39.98         96.15            4
Turkey Creek..................     10240007         39.98         96.15         40.02         96.14            5
Wildcat Creek.................     10240007         39.88         96.04         39.83         96.16           23
Wildcat Creek.................     10240007         40            96.24         40            96.22           22
Wolf Pen Creek................     10240007         39.92         95.99         39.96         95.91           25
----------------------------------------------------------------------------------------------------------------
                                              Subbasin: Big Nemaha
----------------------------------------------------------------------------------------------------------------
*Noharts Creek................     10240008         40.01         95.45         39.92         95.47           42
Pedee Creek...................     10240008         39.98         95.68         40            95.73           41
Pony Creek....................     10240008         40            95.62         39.91         95.8            38
*Roys Creek...................     10240008         40.02         95.39         39.9          95.49           40
----------------------------------------------------------------------------------------------------------------
                                          Subbasin: Independence-Sugar
----------------------------------------------------------------------------------------------------------------
Brush Creek...................     10240011         39.67         95.03         39.75         95.07           26
Deer Creek....................     10240011         39.62         95.1          39.57         95.25           32
Fivemile Creek................     10240011         39.3          94.9          39.3          94.97           35
Independence Creek, North          10240011         39.67         95.2          39.69         95.29           29
 Branch.......................
Jordan Creek..................     10240011         39.66         95.19         39.74         95.15           30
Owl Creek.....................     10240011         39.47         95.05         39.43         95.09           33
Rock Creek....................     10240011         39.64         95.11         39.76         95.12           21
Salt Creek....................     10240011         39.39         94.94         39.3          95.03           34
Smith Creek...................     10240011         39.85         94.94         39.84         94.97           28
Threemile Creek...............     10240011         39.32         94.91         39.32         94.97           36

[[Page 41248]]

 
Walnut Creek..................     10240011         39.5          95.05         39.52         95.18           23
Walnut Creek..................     10240011         39.73         94.97         39.76         95.05           25
White Clay Creek..............     10240011         39.56         95.11         39.56         95.12           31
White Clay Creek..............     10240011         39.56         95.12         39.56         95.13           31
White Clay Creek..............     10240011         39.56         95.13         39.53         95.2            31
Whiskey Creek.................     10240011         39.54         95.11         39.53         95.11    235 00.00
Whiskey Creek.................     10240011         39.53         95.11         39.52         95.14    235 00.32
----------------------------------------------------------------------------------------------------------------
                                        Subbasin: Lower Missouri-Crooked
----------------------------------------------------------------------------------------------------------------
Brush Creek...................     10300101         39.02         94.62         39            94.62           54
Camp Branch...................     10300101         38.83         94.63         38.74         94.66           56
Coffee Creek..................     10300101         38.81         94.68         38.82         94.78           57
Dyke Branch...................     10300101         38.97         94.61         38.98         94.63           55
Indian Creek..................     10300101         38.94         94.61         38.9          94.76           32
Negro Creek...................     10300101         38.86         94.61         38.85         94.69           58
Tomahawk Creek................     10300101         38.93         94.62         38.87         94.76           53
----------------------------------------------------------------------------------------------------------------
                                                  Basin: Neosho
                                           Subbasin: Neosho Headwaters
----------------------------------------------------------------------------------------------------------------
Allen Creek...................     11070201         38.44         96.19         38.69         96.23            5
Badger Creek..................     11070201         38.39         96.06         38.52         96.09           45
Big John Creek................     11070201         38.62         96.44         38.74         96.4            37
Bluff Creek...................     11070201         38.63         96.37         38.74         96.21            8
Crooked Creek.................     11070201         38.75         96.64         38.68         96.67           35
Dows Creek....................     11070201         38.43         96.16         38.44         96.19            3
Dows Creek....................     11070201         38.44         96.19         38.65         96.19            4
Eagle Creek...................     11070201         38.28         95.88         38.26         96.21           25
Eagle Creek, South............     11070201         38.27         96.04         38.22         96.14           47
East Creek....................     11070201         38.62         96.46         38.54         96.63           39
Elm Creek.....................     11070201         38.65         96.48         38.65         96.66           36
Fourmile Creek................     11070201         38.65         96.66         38.66         96.67           24
Fourmile Creek................     11070201         38.27         95.95         38.18         96.02           48
Haun Creek....................     11070201         38.75         96.65         38.64         96.72           29
Horse Creek...................     11070201         38.75         96.31         38.82         96.32           33
Kahola Creek..................     11070201         38.54         96.33         38.52         96.47           43
Lairds Creek..................     11070201         38.73         96.58         38.86         96.59           30
Lanos Creek...................     11070201         38.72         96.54         38.86         96.56           21
Lebo Creek....................     11070201         38.3          95.91         38.41         95.84           51
Munkers Creek, East Branch....     11070201         38.79         96.41         38.83         96.33           31
Munkers Creek, Middle Branch..     11070201         38.77         96.45         38.81         96.39           32
Neosho River, East Fork.......     11070201         38.73         96.5          38.83         96.35           18
Neosho River, West Fork.......     11070201         38.76         96.71         38.67         96.79           28
Parkers Creek.................     11070201         38.76         96.67         38.83         96.68           27
Plum Creek....................     11070201         38.34         95.98         38.43         95.96           50
Plumb Creek...................     11070201         38.43         96.12         38.51         96.1            49
Rock Creek....................     11070201         38.62         96.37         38.63         96.37            7
Rock Creek....................     11070201         38.63         96.37         38.81         96.2             9
Rock Creek, East Branch.......     11070201         38.75         96.3          38.82         96.23           34
Spring Creek..................     11070201         38.6          96.51         38.54         96.53           40
Stillman Creek................     11070201         38.47         96.17         38.55         96.18           44
Taylor Creek..................     11070201         38.44         96.16         38.52         96.1            46
Walker Branch.................     11070201         38.59         96.4          38.57         96.46           42
Wolf Creek....................     11070201         38.6          96.49         38.54         96.5            41
Wrights Creek.................     11070201         38.55         96.35         38.64         96.28           38
----------------------------------------------------------------------------------------------------------------
                                           Subbasin: Upper Cottonwood
----------------------------------------------------------------------------------------------------------------
Antelope Creek................     11070202         38.32         97.15         38.22         97.26           19
Bills Creek...................     11070202         38.15         96.8          38.08         96.87           30
Bruno Creek...................     11070202         38.26         96.83         38.37         96.89           27
Catlin Creek..................     11070202         38.27         96.97         38.24         97.15           20
Clear Creek...................     11070202         38.36         97.02         38.6          96.92            5
Clear Creek, East Branch......     11070202         38.44         96.96         38.53         96.9            24
Coon Creek....................     11070202         38.24         96.81         38.22         96.69           32
Cottonwood River, South.......     11070202         38.36         97.07         38.32         97.15           17
Cottonwood River, South.......     11070202         38.32         97.15         38.41         97.34           18
Doyle Creek...................     11070202         38.24         96.91         38.21         97.26           21
French Creek..................     11070202         38.39         97.17         38.43         97.33            6
Mud Creek.....................     11070202         38.36         97.02         38.57         97.17            6
Perry Creek...................     11070202         38.51         97.3          38.43         97.33           23
Spring Branch.................     11070202         38.31         97.02         38.25         97.16           26

[[Page 41249]]

 
Spring Creek..................     11070202         38.16         97.11         38.22         97.21           28
Spring Creek..................     11070202         38.23         96.93         38.12         96.92           29
Stony Brook...................     11070202         38.31         97.26         38.24         97.31           25
Turkey Creek..................     11070202         38.19         96.82         38.09         96.87           31
----------------------------------------------------------------------------------------------------------------
                                           Subbasin: Lower Cottonwood
----------------------------------------------------------------------------------------------------------------
Beaver Creek..................     11070203         38.41         96.33         38.47         96.35           29
Bloody Creek..................     11070203         38.37         96.45         38.24         96.4            40
Buck Creek....................     11070203         38.37         96.53         38.32         96.61           39
Buckeye Creek.................     11070203         38.4          96.37         38.5          96.47           44
Bull Creek....................     11070203         38.39         96.38         38.46         96.45           26
Camp Creek....................     11070203         38.58         96.81         38.58         96.9            14
Coal Creek....................     11070203         38.36         96.08         38.28         96.24           43
Collett Creek.................     11070203         38.4          96.71         38.47         96.75           21
Corn Creek....................     11070203         38.17         96.55         38.16         96.5            47
Coyne Branch..................     11070203         38.29         96.74         38.23         96.69           33
Crocker Creek.................     11070203         38.18         96.56         38.15         96.64           46
Dodds Creek...................     11070203         38.55         96.74         38.63         96.71           15
Fox Creek.....................     11070203         38.39         96.55         38.52         96.63           19
French Creek..................     11070203         38.27         96.77         38.36         96.83           32
Gannon Creek..................     11070203         38.42         96.65         38.48         96.59           24
Gould Creek...................     11070203         38.35         96.67         38.37         96.71           36
Holmes Creek..................     11070203         38.32         96.69         38.28         96.68           35
Jacob Creek...................     11070203         38.4          96.36         38.28         96.35           28
Kirk Creek....................     11070203         38.21         96.56         38.2          96.62           48
Little Cedar Creek............     11070203         38.1          96.54         38.06         96.43           11
Little Cedar Creek............     11070203         38.15         96.55         38.13         96.42           45
Middle Creek..................     11070203         38.38         96.63         38.55         96.89            5
Mile-and-A-Half Creek.........     11070203         38.56         96.77         38.66         96.8            13
Moon Creek....................     11070203         38.4          96.27         38.47         96.3            31
Mulvane Creek.................     11070203         38.44         96.66         38.5          96.64           22
Peyton Creek..................     11070203         38.38         96.42         38.5          96.51           25
Phenis Creek..................     11070203         38.39         96.26         38.28         96.3            30
Pickett Creek.................     11070203         38.5          96.71         38.49         96.77           18
Prather Creek.................     11070203         38.39         96.55         38.33         96.61           23
Rock Creek....................     11070203         38.26         96.54         38.18         96.65           37
Schaffer Creek................     11070203         38.48         96.69         38.55         96.65           17
School Creek..................     11070203         38.51         96.71         38.57         96.68           16
Sharpes Creek.................     11070203         38.27         96.52         38.15         96.44           38
Silver Creek..................     11070203         38.31         96.72         38.37         96.79           34
Spring Creek..................     11070203         38.37         96.43         38.32         96.4            41
Stout Run.....................     11070203         38.37         96.48         38.44         96.52           27
Stribby Creek.................     11070203         38.41         96.78         38.51         96.79           20
----------------------------------------------------------------------------------------------------------------
                                             Subbasin: Upper Neosho
----------------------------------------------------------------------------------------------------------------
Badger Creek..................     11070204         38.15         95.65         38.2          95.6            42
Big Creek, North..............     11070204         38.09         95.73         38.16         96              16
Big Creek, South..............     11070204         38.09         95.73         38.13         95.97           17
Bloody Run....................     11070204         37.81         95.49         37.88         95.52           25
Carlyle Creek.................     11070204         37.98         95.39         38.07         95.37           47
Charles Branch................     11070204         37.82         95.39         37.87         95.4            27
Cherry Creek..................     11070204         37.85         95.58         38            95.71           20
Coal Creek....................     11070204         37.77         95.45         37.86         95.26            4
Cottonwood Creek..............     11070204         37.97         95.41         38.02         95.42           48
Crooked Creek.................     11070204         38.06         95.63         38.26         95.57           44
Draw Creek....................     11070204         37.65         95.34         37.72         95.36           34
Goose Creek...................     11070204         37.74         95.28         37.82         95.27           29
Long Creek....................     11070204         38.11         95.67         38.37         95.61           12
Martin Creek..................     11070204         37.98         95.48         38.09         95.38           49
Mud Creek.....................     11070204         37.78         95.45         37.78         95.52           26
Mud Creek.....................     11070204         37.79         95.22         37.86         95.24           31
Onion Creek...................     11070204         37.85         95.47         37.92         95.51           24
Owl Creek.....................     11070204         37.79         95.45         37.85         95.58           19
Owl Creek.....................     11070204         37.85         95.58         37.93         95.88           21
Plum Creek....................     11070204         37.87         95.59         37.94         95.6            22
Rock Creek....................     11070204         37.9          95.42         37.97         95.21            7
Rock Creek....................     11070204         37.98         95.52         37.95         95.6            23
Rock Creek....................     11070204         38.18         95.73         38.18         95.8            15
Rock Creek....................     11070204         38.18         95.8          38.17         95.82           32
School Creek..................     11070204         38.3          95.64         38.35         95.64           38

[[Page 41250]]

 
Scott Creek...................     11070204         38.18         95.64         38.28         95.58           40
Slack Creek...................     11070204         37.8          95.4          37.8          95.31           30
Spring Creek..................     11070204         38.01         95.55         38.12         95.52           46
Sutton Creek..................     11070204         37.71         95.41         37.74         95.37           35
Turkey Branch.................     11070204         37.71         95.31         37.77         95.34           28
Turkey Creek..................     11070204         38.07         95.67         37.92         95.89           18
Turkey Creek..................     11070204         37.64         95.41         37.61         95.53           32
Twiss Creek...................     11070204         38.03         95.58         38.12         95.52           45
Varvel Creek..................     11070204         38.07         95.83         38.12         95.9            43
Village Creek.................     11070204         37.71         95.42         37.63         95.6            33
Wolf Creek....................     11070204         38.15         95.71         38.33         95.67           37
----------------------------------------------------------------------------------------------------------------
                                             Subbasin: Middle Neosho
----------------------------------------------------------------------------------------------------------------
Bachelor Creek................     11070205         37.5          95.21         37.45         95.23           40
Canville Creek................     11070205         37.56         95.3          37.74         95.1            16
Center Creek..................     11070205         37.1          95.04         37.15         94.93           25
Cherry Creek..................     11070205         37.08         95.07         37.32         94.83            4
Deer Creek....................     11070205         37.1          95.19         37.23         95.3            27
Denny Branch..................     11070205         37.18         94.97         37.18         94.88           31
Elk Creek.....................     11070205         37.6          95.33         37.5          95.46           19
Elm Creek.....................     11070205         37.47         94.92         37.54         94.95           43
Flat Rock Creek...............     11070205         37.5          95.16         37.56         95.13           12
Flat Rock Creek...............     11070205         37.56         95.13         37.71         95.02           14
Fourmile Creek................     11070205         37.53         95.21         37.66         95.16           49
Grindstone Creek..............     11070205         37.42         94.94         37.48         94.98           42
Hickory Creek.................     11070205         37.34         95.1          37.54         94.98           10
Lake Creek....................     11070205         37.1          95.16         37            95.29           24
Lightning Creek...............     11070205         37.18         95.07         37.35         94.96            6
Lightning Creek...............     11070205         37.35         94.96         37.63         94.9             8
Limestone Creek...............     11070205         37.35         94.96         37.43         94.82            7
Little Cherry Creek...........     11070205         37.22         94.94         37.31         94.8            32
Little Elk Creek..............     11070205         37.57         95.41         37.51         95.42           47
Little Fly Creek..............     11070205         37.03         95.02         37.05         94.95           26
Little Labette Creek..........     11070205         37.31         95.24         37.45         95.44           23
Little Walnut Creek...........     11070205         37.57         95.09         37.69         95.03           46
Litup Creek...................     11070205         37.28         95.1          37.36         95.03           36
Mulberry Creek................     11070205         37.33         94.97         37.44         94.99           35
Murphy Creek..................     11070205         37.47         95.13         37.52         95.05           41
Ogeese Creek..................     11070205         37.51         95.23         37.49         95.36           38
Pecan Creek...................     11070205         37.6          95.29         37.66         95.27           45
Plum Creek....................     11070205         37.31         95            37.31         94.92           34
Rock Creek....................     11070205         37.57         95.31         37.52         95.37           48
Spring Creek..................     11070205         37.21         95.2          37.23         95.29           30
Stink Branch..................     11070205         37.26         95.04         37.28         94.97           37
Thunderbolt Creek.............     11070205         37.41         94.93         37.52         94.85           44
Tolen Creek...................     11070205         37.35         95.25         37.41         95.22           39
Town Creek....................     11070205         37.02         95.06         37.04         95.16           28
Turkey Creek..................     11070205         37.08         95.13         37            95.22           29
Walnut Creek..................     11070205         37.56         95.13         37.66         94.97           13
Wolf Creek....................     11070205         37.36         94.91         37.36         94.83           33
----------------------------------------------------------------------------------------------------------------
                                         Subbasin: Lake O'The Cherokees
----------------------------------------------------------------------------------------------------------------
Fourmile Creek................     11070206         36.99         94.94         37.07         94.88           18
Tar Creek.....................     11070206         36.96         94.84         37.07         94.84           19
----------------------------------------------------------------------------------------------------------------
                                                Subbasin: Spring
----------------------------------------------------------------------------------------------------------------
Little Shawnee Creek..........     11070207         37.18         94.7          37.29         94.79           22
Long Branch...................     11070207         37.24         94.67         37.29         94.73           21
Shawnee Creek.................     11070207         37.09         94.69         37.25         94.8            17
Taylor Branch.................     11070207         37.29         94.67         37.38         94.61           25
Willow Creek..................     11070207         37.04         94.73         37.08         94.85           20
----------------------------------------------------------------------------------------------------------------
                                            Basin: Smoky Hill/Saline
                                           Subbasin: Middle Smoky Hill
----------------------------------------------------------------------------------------------------------------
Ash Creek.....................     10260006         38.65         98.07         38.53         98.19           37
Big Timber Creek..............     10260006         38.71         99.27         38.64         99.32           24
Big Timber Creek..............     10260006         38.64         99.32         38.6          99.48           25
Big Timber Creek..............     10260006         38.6          99.48         38.67         99.74           27
Blood Creek...................     10260006         38.78         98.42         38.63         98.52           35

[[Page 41251]]

 
Buck Creek....................     10260006         38.71         99.08         38.6          99.18           29
Buffalo Creek.................     10260006         38.74         98.3          38.89         98.32            6
Clear Creek...................     10260006         38.68         98.08         38.8          98.14           42
Coal Creek....................     10260006         38.79         98.49         38.63         98.58           34
Cow Creek.....................     10260006         38.76         98.37         38.89         98.33           38
Eagle Creek...................     10260006         38.72         99.07         38.56         99.06           30
Fossil Creek..................     10260006         38.79         98.8          38.89         98.96           13
Goose Creek...................     10260006         38.79         98.7          38.63         98.76           39
Landon Creek..................     10260006         38.78         98.85         38.61         98.9            31
Loss Creek....................     10260006         38.74         98.32         38.65         98.38           44
Mud Creek.....................     10260006         38.67         98.17         38.64         98.22           47
Oxide Creek...................     10260006         38.71         98.21         38.6          98.29           45
Sellens Creek.................     10260006         38.79         98.77         38.61         98.87           32
Shelter Creek.................     10260006         38.7          99.21         38.59         99.21           43
Skunk Creek...................     10260006         38.68         98.14         38.6          98.15           48
Spring Creek..................     10260006         38.78         98.43         38.74         98.48           41
Timber Creek..................     10260006         38.6          99.48         38.72         99.67           26
Turkey Creek..................     10260006         38.73         98.26         38.62         98.32           46
Unnamed Stream................     10260006         38.72         99.34         38.87         99.47           20
Unnamed Stream................     10260006         38.72         99.41         38.71         99.56           23
Unnamed Stream................     10260006         38.64         99.32         38.59         99.32           28
Wilson Creek..................     10260006         38.79         98.45         38.86         98.49           40
Wolf Creek....................     10260006         38.75         98.35         38.65         98.48           36
----------------------------------------------------------------------------------------------------------------
                                           Subbasin: Lower Smoky Hill
----------------------------------------------------------------------------------------------------------------
Basket Creek..................     10260008         39.16         97.2          39.13         97.29           40
Battle Creek..................     10260008         38.54         97.45         38.42         97.48           23
Carry Creek...................     10260008         38.75         97.09         38.72         97.13           32
Carry Creek...................     10260008         38.87         96.92         38.71         97.11           35
Chapman Creek, West...........     10260008         39.21         97.3          39.27         97.49            5
Dry Creek.....................     10260008         38.74         97.58         38.6          97.8            36
Dry Creek, East...............     10260008         38.85         97.53         38.76         97.53           43
Hobbs Creek...................     10260008         38.69         97.42         38.6          97.35           48
Holland Creek.................     10260008         38.88         97.25         38.74         97.29           25
Holland Creek, East...........     10260008         38.74         97.29         38.59         97.27           27
Holland Creek, West...........     10260008         38.74         97.29         38.59         97.31           26
Kentucky Creek................     10260008         38.62         97.62         38.46         97.56           17
Kentucky Creek, West..........     10260008         38.52         97.61         38.47         97.62           54
Lone Tree Creek...............     10260008         38.95         97.08         39            97.12           41
Lyon Creek, West Branch.......     10260008         38.87         96.92         38.64         97.09           34
McAllister Creek..............     10260008         38.73         97.42         38.7          97.35           49
Middle Branch.................     10260008         38.61         97.2          38.55         97.2            58
Mud Creek.....................     10260008         38.89         97.21         39.13         97.33            8
Otter Creek...................     10260008         38.95         96.85         38.9          96.82           42
Paint Creek...................     10260008         38.52         97.71         38.44         97.72           52
Pewee Creek...................     10260008         38.63         97.59         38.58         97.55           56
Sand Creek....................     10260008         38.6          97.93         38.7          97.98           46
Sharps Creek..................     10260008         38.53         97.76         38.5          97.94           16
Spring Creek..................     10260008         38.78         97.43         38.63         97.52           45
Stag Creek....................     10260008         38.68         97.42         38.6          97.53           19
Turkey Creek..................     10260008         38.88         97.19         38.8          97.18           28
Turkey Creek..................     10260008         38.8          97.18         38.58         97.25           30
Turkey Creek, East............     10260008         38.69         97.16         38.57         97.09           50
Turkey Creek, West Branch.....     10260008         38.8          97.18         38.63         97.25           29
Unnamed Stream................     10260008         38.72         96.95         38.72         96.94           K3
Unnamed Stream................     10260008         38.71         97.06         38.71         97.07           K4
Unnamed Stream................     10260008         38.73         96.97         38.74         96.99          K24
Wiley Creek...................     10260008         38.61         97.93         38.68         97.94           47
----------------------------------------------------------------------------------------------------------------
                                             Subbasin: Upper Saline
----------------------------------------------------------------------------------------------------------------
Cedar Creek...................     10260009         38.96         98.68         38.86         98.79           30
Chalk Creek...................     10260009         39.11         99.82         39.21         99.86           26
Coyote Creek..................     10260009         39.11        100.09         39.03        100.13           23
Eagle Creek...................     10260009         39.11         98.91         39.27         99.08            6
Happy Creek...................     10260009         39.12         99.84         39.24         99.98           25
Paradise Creek................     10260009         38.98         98.79         39.11         98.91            5
Salt Creek....................     10260009         38.96         98.88         38.97         99.07           20
Spring Creek, East............     10260009         39.09         99.35         39.23         99.45           10
Sweetwater Creek..............     10260009         39.06         99.1          39.02         99.19           29
Trego Creek...................     10260009         39.08         99.49         39.04         99.67           19

[[Page 41252]]

 
Unnamed Stream................     10260009         39.11         99.7          39.23         99.87           13
Wild Horse Creek..............     10260009         39.11         99.54         39.25         99.58           27
----------------------------------------------------------------------------------------------------------------
                                             Subbasin: Lower Saline
----------------------------------------------------------------------------------------------------------------
Bacon Creek...................     10260010         39.11         98.34         39.29         98.4             7
Blue Stem Creek...............     10260010         39.03         98.48         39            98.6            33
Coon Creek....................     10260010         39.11         98.68         39.22         98.73           31
Dry Creek.....................     10260010         38.87         97.61         38.74         97.62           29
Eff Creek.....................     10260010         38.88         97.79         38.82         97.9            23
Elkhorn Creek.................     10260010         39.01         98.09         38.84         98.18           17
Elkhorn Creek, West...........     10260010         38.96         98.1          38.84         98.2            38
Fourmile Creek................     10260010         39.09         98.63         39.22         98.64           30
Lost Creek....................     10260010         39.04         98.16         39.12         98.17           34
Owl Creek.....................     10260010         38.97         97.83         38.89         98              18
Owl Creek.....................     10260010         38.99         97.96         38.88         98.02           39
Ralston Creek.................     10260010         38.76         97.8          38.63         97.84           28
Shaw Creek....................     10260010         38.96         97.77         38.92         97.8            41
Spillman Creek................     10260010         39.03         98.21         39.11         98.34            6
Spillman Creek, North Branch..     10260010         39.11         98.34         39.24         98.5             8
Spring Creek..................     10260010         38.99         98.21         38.85         98.21           16
Spring Creek..................     10260010         38.89         97.6          38.86         97.63           19
Spring Creek..................     10260010         38.86         97.63         38.84         97.7            20
Spring Creek..................     10260010         39.84         97.7          38.77         97.8            24
Spring Creek..................     10260010         38.77         97.8          38.76         97.8            26
Spring Creek..................     10260010         38.76         97.8          38.63         97.86           27
Table Rock Creek..............     10260010         38.86         97.95         38.81         98.03           40
Trail Creek...................     10260010         39.08         98.27         39.2          98.31           32
Twelvemile Creek..............     10260010         39.01         98.01         39.08         98.06           36
Twin Creek, West..............     10260010         38.99         98.38         38.9          98.42           37
West Spring Creek.............     10260010         38.77         97.8          38.75         98.01           25
Wolf Creek....................     10260010         39            98.43         39.05         98.51           10
Wolf Creek, East Fork.........     10260010         39.05         98.51         39.24         98.62           11
Wolf Creek, West Fork.........     10260010         39.05         98.51         39.18         98.83           12
Yauger Creek..................     10260010         39.03         98.15         39.11         98.15           35
----------------------------------------------------------------------------------------------------------------
                                                 Basin: Solomon
                                       Subbasin: Upper North Fork Solomon
----------------------------------------------------------------------------------------------------------------
Ash Creek.....................     10260011         39.66         99.4          39.78         99.49           24
Beaver Creek..................     10260011         39.67         99.56         39.81         99.6            23
Big Timber Creek..............     10260011         39.64         99.73         39.78         99.79            8
Bow Creek.....................     10260011         39.56         99.28         39.45        100.23           15
Cactus Creek..................     10260011         39.66         99.58         39.8          99.7            28
Crooked Creek.................     10260011         39.66         99.55         39.82         99.68            6
Elk Creek.....................     10260011         39.61        100            39.66        100.23           12
Elk Creek, East...............     10260011         39.62         99.92         39.73        100              25
Game Creek....................     10260011         39.62         99.8          39.76         99.84           10
Game Creek....................     10260011         39.66         99.83         39.75         99.83           27
Lost Creek....................     10260011         39.61         99.98         39.53        100.02           20
Sand Creek....................     10260011         39.64         99.75         39.73         99.82           26
Scull Creek...................     10260011         39.65         99.66         39.78         99.74           21
Spring Creek..................     10260011         39.58        100.16         39.52        100.13           19
Wolf Creek....................     10260011         39.67         99.47         39.79         99.55           22
----------------------------------------------------------------------------------------------------------------
                                       Subbasin: Lower North Fork Solomon
----------------------------------------------------------------------------------------------------------------
Beaver Creek..................     10260012         39.65         98.86         39.75         98.84           10
Beaver Creek, East Branch.....     10260012         39.75         98.84         39.95         98.81           11
Beaver Creek, Middle..........     10260012         39.75         98.84         39.75         98.85           12
Beaver Creek, Middle..........     10260012         39.75         98.85         39.97         98.97           13
Beaver Creek, West............     10260012         39.75         98.85         39.96         99              14
Big Creek.....................     10260012         39.72         99.19         39.92         99.27           26
Boughton Creek................     10260012         39.77         99.41         39.9          99.45           34
Buck Creek....................     10260012         39.64         98.52         39.66         98.6            43
Cedar Creek...................     10260012         39.65         98.91         39.68         98.95           16
Cedar Creek...................     10260012         39.68         98.95         39.7          99              18
Cedar Creek, East.............     10260012         39.68         98.95         39.93         99.01           17
Cedar Creek, East Middle......     10260012         39.88         99.06         39.97         99.06           37
Cedar Creek, Middle...........     10260012         39.7          99            39.95         99.13           19
Deer Creek....................     10260012         39.66         99.1          39.7          99.14           23
Deer Creek....................     10260012         39.7          99.14         39.72         99.19           25
Deer Creek....................     10260012         39.72         99.19         39.73         99.25           27

[[Page 41253]]

 
Deer Creek....................     10260012         39.73         99.25         39.73         99.33           29
Deer Creek....................     10260012         39.73         99.33         39.85         99.64           31
Dry Creek.....................     10260012         39.6          98.8          39.76         98.71           42
Glen Rock Creek...............     10260012         39.64         98.94         39.56         98.96           41
Lawrence Creek................     10260012         39.57         98.74         39.54         98.88           44
Lindley Creek.................     10260012         39.56         98.7          39.65         98.7            45
Little Oak Creek..............     10260012         39.54         98.48         39.74         98.49            3
Medicine Creek................     10260012         39.65         99.02         39.55         99.13           33
Oak Creek.....................     10260012         39.5          98.46         39.54         98.48            2
Oak Creek.....................     10260012         39.54         98.48         39.88         98.69            4
Oak Creek, East...............     10260012         39.68         98.55         39.84         98.55           40
Oak Creek, West...............     10260012         39.72         98.59         39.86         98.69           39
Plotner Creek.................     10260012         39.73         99.33         39.91         99.38           30
Plum Creek....................     10260012         39.7          99            39.94         99.19           20
Spring Creek..................     10260012         39.6          98.82         39.9          98.72            8
Spring Creek..................     10260012         39.73         99.25         39.92         99.33           28
Starvation Creek..............     10260012         39.67         99.1          39.9          99.49           38
Turner Creek..................     10260012         39.7          99.14         39.92         99.25           24
----------------------------------------------------------------------------------------------------------------
                                       Subbasin: Upper South Fork Solomon
----------------------------------------------------------------------------------------------------------------
Spring Creek..................     10260013         39.38         99.61         39.49         99.85            5
----------------------------------------------------------------------------------------------------------------
                                       Subbasin: Lower South Fork Solomon
----------------------------------------------------------------------------------------------------------------
Ash Creek.....................     10260014         39.41         99.36         39.52         99.44           22
Boxelder Creek................     10260014         39.42         99.31         39.25         99.31           14
Carr Creek....................     10260014         39.45         98.46         39.24         98.61           21
Covert Creek..................     10260014         39.43         98.71         39.25         98.9            19
Crooked Creek.................     10260014         39.46         98.94         39.54         99.03           27
Dibble Creek..................     10260014         39.43         99.32         39.51         99.36           23
Elm Creek.....................     10260014         39.44         99.23         39.25         99.26           15
Jim Creek.....................     10260014         39.43         99.18         39.53         99.22           25
Kill Creek....................     10260014         39.43         98.78         39.27         99              18
Kill Creek, East..............     10260014         39.4          98.8          39.29         98.89           28
Lost Creek....................     10260014         39.4          99.39         39.25         99.53           13
Lucky Creek...................     10260014         39.44         99.01         39.33         99.07           26
Medicine Creek................     10260014         39.43         99.14         39.27         99.18           16
Medicine Creek................     10260014         39.45         98.83         39.29         99.07           17
Robbers Roost Creek...........     10260014         39.42         99.28         39.29         99.3            24
Twin Creek....................     10260014         39.43         98.54         39.24         98.76           20
Twin Creek, East..............     10260014         39.41         98.55         39.32         98.58           29
----------------------------------------------------------------------------------------------------------------
                                             Subbasin: Solomon River
----------------------------------------------------------------------------------------------------------------
Antelope Creek................     10260015         39.33         98.25         39.38         98.31           43
Antelope Creek................     10260015         39.03         97.62         39.01         97.7            58
Battle Creek..................     10260015         39.2          98.08         39.12         98.22           33
Battle Creek..................     10260015         39.06         97.67         39.04         97.74           57
Brown Creek...................     10260015         39.47         98.17         39.72         98.24           15
Coal Creek....................     10260015         38.98         97.49         39.05         97.47            2
Cow Creek.....................     10260015         39.15         97.9          39.28         97.92           28
Cow Creek.....................     10260015         39.18         97.91         39.26         97.88           55
Cris Creek....................     10260015         39.34         97.84         39.46         97.79           48
Disappointment Creek..........     10260015         39.55         98.32         39.63         98.29           35
Dry Creek.....................     10260015         39.45         98.06         39.53         98.01           37
Dry Creek.....................     10260015         39.25         97.76         39.3          97.66           52
Elm Creek.....................     10260015         39.66         98.34         39.81         98.26           59
Elkhorn Creek, West...........     10260015         39.16         97.99         39.09         98.07           47
Fifth Creek...................     10260015         39.24         98.08         39.34         98.11           45
Fourth Creek..................     10260015         39.39         97.99         39.31         98              46
Frog Creek....................     10260015         39.48         98.28         39.55         98.27           34
Granite Creek.................     10260015         39.53         98.38         39.62         98.42           24
Indian Creek..................     10260015         39.45         98.15         39.39         98.21           40
Leban Creek...................     10260015         39.43         98.11         39.38         98.23           41
Limestone Creek, Middle.......     10260015         39.63         98.36         39.83         98.39           21
Limestone Creek, West.........     10260015         39.61         98.34         39.63         98.36           20
Limestone Creek, West.........     10260015         39.63         98.36         39.84         98.45           22
Lindsey Creek.................     10260015         39.1          97.69         39.26         97.5             7
Little Creek..................     10260015         39.28         98.2          39.3          98.32           44
Lost Creek....................     10260015         39.12         97.76         39.25         97.87           56
Marshall Creek................     10260015         39.4          98.03         39.34         98.08           42
Mill Creek....................     10260015         39.45         98.41         39.36         98.4            38

[[Page 41254]]

 
Mortimer Creek................     10260015         39.29         97.8          39.44         97.76           49
Mulberry Creek................     10260015         39.46         98.13         39.59         98.17           36
Pipe Creek....................     10260015         39.12         97.71         39.22         97.63            9
Pipe Creek....................     10260015         39.22         97.63         39.43         97.6            10
Pipe Creek, West..............     10260015         39.22         97.63         39.42         97.61           11
Plum Creek....................     10260015         39.43         98.07         39.61         98.16           13
Rattlesnake Creek.............     10260015         39.19         98.04         39.2          98.08           31
Rattlesnake Creek.............     10260015         39.2          98.08         39.2          98.29           32
Sand Creek....................     10260015         39.02         97.6          39.18         97.52            4
Second Creek..................     10260015         39.36         97.89         39.28         97.97           51
Second Creek..................     10260015         39.15         97.94         39.27         97.98           54
Spring Creek..................     10260015         39.15         97.92         39.04         98.02           53
Turkey Creek..................     10260015         39.46         98.21         39.39         98.27           39
Walnut Creek..................     10260015         39.45         98.35         39.34         98.41           26
Yockey Creek..................     10260015         39.28         97.79         39.41         97.72           50
----------------------------------------------------------------------------------------------------------------
                                              Basin: Upper Arkansas
                                     Subbasin: Middle Arkansas-Lake McKinney
----------------------------------------------------------------------------------------------------------------
Great Eastern Ditch...........     11030001         37.98        101.19         38.06        100.99            2
----------------------------------------------------------------------------------------------------------------
                                                Subbasin: Buckner
----------------------------------------------------------------------------------------------------------------
Buckner Creek, South Fork.....     11030006         37.95        100.2          37.84        100.28            6
Duck Creek....................     11030006         37.9          99.94         37.8         100.1             8
Elm Creek.....................     11030006         37.9          99.88         37.75         99.93            5
Rock Creek....................     11030006         38.09         99.79         38            99.89            9
Saw Log Creek.................     11030006         38.13         99.69         37.9          99.88            3
Saw Log Creek.................     11030006         37.9          99.88         37.82        100.21            4
----------------------------------------------------------------------------------------------------------------
                                          Subbasin: Lower Walnut Creek
----------------------------------------------------------------------------------------------------------------
Alexander Dry Creek...........     11030008         38.47         99.58         38.65         99.8             7
Bazine Creek..................     11030008         38.44         99.69         38.62         99.95            9
Boot Creek....................     11030008         38.45         98.96         38.55         99.05           15
Dry Creek.....................     11030008         38.46         99.02         38.4          99.17           14
Dry Walnut Creek..............     11030008         38.38         98.73         38.37         99.24           13
Otter Creek...................     11030008         38.45         99.29         38.38         99.4            12
Sand Creek....................     11030008         38.48         99.14         38.57         99.41            3
Sandy Creek...................     11030008         38.47         99.39         38.35         99.44           11
Walnut Creek..................     11030008         38.36         98.67         38.38         98.73            1
Walnut Creek..................     11030008         38.38         98.73         38.48         99.14            2
Walnut Creek..................     11030008         38.48         99.14         38.45         99.29            4
Walnut Creek..................     11030008         38.45         99.29         38.47         99.39            5
Walnut Creek..................     11030008         38.47         99.39         38.47         99.58            6
Walnut Creek..................     11030008         38.47         99.58         38.44         99.69            8
Walnut Creek..................     11030008         38.44         99.69         38.41         99.88           10
----------------------------------------------------------------------------------------------------------------
                                             Basin: Upper Republican
                                         Subbasin: South Fork Republican
----------------------------------------------------------------------------------------------------------------
Battle Creek..................     10250003         39.65        101.95         39.59        102.05           71
Big Timber Creek..............     10250003         40.02        101.53         39.78        101.58           61
Drury Creek...................     10250003         39.75        101.84         39.66        101.86           60
----------------------------------------------------------------------------------------------------------------
                                                Subbasin: Beaver
----------------------------------------------------------------------------------------------------------------
Beaver Creek..................     10250014         40.01        100.53         39.82        101.03            2
----------------------------------------------------------------------------------------------------------------
                                                Basin: Verdigris
                                            Subbasin: Upper Verdigris
----------------------------------------------------------------------------------------------------------------
Bachelor Creek................     11070101         37.84         96.1          37.97         96.33           21
Bernard Creek.................     11070101         37.91         96.17         37.97         96.22           24
Big Cedar Creek...............     11070101         37.51         95.67         37.62         95.53           39
Brazil Creek..................     11070101         37.84         95.96         37.91         95.9            31
Buffalo Creek.................     11070101         37.64         95.75         37.79         95.59            2
Buffalo Creek, West...........     11070101         37.68         95.73         37.8          95.76           34
Cedar Creek...................     11070101         37.87         95.94         37.91         95.88           32
Chetopa Creek.................     11070101         37.44         95.67         37.59         95.51           22
Crooked Creek.................     11070101         37.59         95.71         37.62         95.62           38
Dry Creek.....................     11070101         37.86         95.98         37.99         95.92           27
Elder Branch..................     11070101         37.64         95.75         37.68         95.6            37

[[Page 41255]]

 
Fancy Creek...................     11070101         37.8          96.04         37.76         96.07           28
Greenhall Creek...............     11070101         37.99         96.02         38.04         95.96           26
Holderman Creek...............     11070101         38.12         96.1          38.11         96.2            47
Homer Creek...................     11070101         37.84         96.1          37.99         96.28           20
Kelly Branch..................     11070101         38.15         96.16         38.22         96.17           42
Kuntz Branch..................     11070101         37.82         96.07         37.76         96.08           29
Little Sandy Creek............     11070101         37.68         95.83         37.76         95.8            33
Long Creek....................     11070101         38.06         96.05         38.14         95.98           45
Miller Creek..................     11070101         37.81         95.96         37.84         95.87           30
Moon Branch...................     11070101         38.17         96.19         38.25         96.26           43
Onion Creek...................     11070101         38            96.14         38.06         96.21           23
Rock Creek....................     11070101         38.16         96.21         38.29         96.33           14
Ross Branch...................     11070101         37.69         95.88         37.7          96.01           35
Sandy Creek...................     11070101         37.68         95.84         37.9          95.84            4
Shaw Creek....................     11070101         38.18         96.28         38.26         96.37           40
Slate Creek...................     11070101         37.97         96.11         38.06         96.31           25
Snake Creek...................     11070101         37.62         95.76         37.61         95.87           36
Tate Branch Creek.............     11070101         38.15         96.13         38.21         96.12           44
Van Horn Creek................     11070101         38.06         96.05         38.06         96.13           46
Verdigris River, Bernard           11070101         38.15         96.17         38.09         96.35           16
 Branch.......................
Verdigris River, North Branch.     11070101         38.15         96.17         38.16         96.21           13
Verdigris River, North Branch.     11070101         38.16         96.21         38.09         96.36           15
Walnut Creek..................     11070101         37.79         95.99         37.84         96.1            19
West Creek....................     11070101         37.89         96.01         38.1          96.28           17
Wolf Creek....................     11070101         38.19         96.31         38.23         96.4            41
----------------------------------------------------------------------------------------------------------------
                                                 Subbasin: Fall
----------------------------------------------------------------------------------------------------------------
Battle Creek..................     11070102         37.99         96.51         38.02         96.54           18
Burnt Creek...................     11070102         37.79         96.41         37.86         96.47           24
Clear Creek...................     11070102         37.5          95.83         37.52         95.74           37
Coon Creek....................     11070102         37.87         96.4          37.85         96.46           25
Coon Creek....................     11070102         37.56         95.94         37.51         96              36
Crain Creek...................     11070102         37.63         96.05         37.7          96.03           32
Honey Creek...................     11070102         37.72         96.2          37.75         96.33           26
Indian Creek..................     11070102         37.58         95.96         37.58         96.17           15
Ivanpah Creek.................     11070102         37.9          96.45         37.88         96.58           19
Kitty Creek...................     11070102         37.78         96.34         37.75         96.4            27
Little Indian Creek...........     11070102         37.54         96.07         37.49         96.1            34
Little Salt Creek.............     11070102         37.62         96.06         37.59         96.12           35
Oleson Creek..................     11070102         37.95         96.39         38.02         96.44           21
Otis Creek....................     11070102         37.92         96.46         38.03         96.46           20
Plum Creek....................     11070102         37.61         96.2          37.66         96.27           30
Rainbow Creek, East...........     11070102         37.51         95.86         37.46         95.98           17
Salt Creek....................     11070102         37.61         96.04         37.65         96.27           14
Salt Creek....................     11070102         37.51         95.84         37.6          95.87           38
Silver Creek..................     11070102         37.59         95.96         37.64         95.96           33
Snake Creek...................     11070102         37.71         96.22         37.67         96.24           31
Spring Creek..................     11070102         37.81         96.29         37.7          96.51           12
Swing Creek...................     11070102         38.01         96.32         38.02         96.31          989
Tadpole Creek.................     11070102         37.7          96.27         37.74         96.38           29
Watson Branch.................     11070102         37.69         96.38         37.76         96.4            23
----------------------------------------------------------------------------------------------------------------
                                           Subbasin: Middle Verdigris
----------------------------------------------------------------------------------------------------------------
Big Creek.....................     11070103         36.98         95.35         37.03         95.31           21
Biscuit Creek.................     11070103         37.05         95.71         37.1          95.69           53
Bluff Run.....................     11070103         37.07         95.74         37.11         95.72           54
Choteau Creek.................     11070103         37.29         95.66         37.36         95.6            63
Claymore Creek................     11070103         37.06         95.59         37.15         95.5            50
Deadman Creek.................     11070103         37.06         95.72         37            95.78           57
Deer Creek....................     11070103         37.07         95.51         37.05         95.36           51
Drum Creek....................     11070103         37.2          95.63         37.44         95.5            34
Dry Creek.....................     11070103         37.39         95.66         37.45         95.51           37
Fawn Creek....................     11070103         37.08         95.75         37            95.8            56
Mud Creek.....................     11070103         37.17         95.45         37.23         95.44           59
Onion Creek...................     11070103         36.99         95.59         37.18         95.9            39
Potato Creek..................     11070103         37.11         95.59         37.2          95.51           31
Prior Creek...................     11070103         37.34         95.68         37.36         95.62           62
Pumpkin Creek.................     11070103         37.04         95.58         37.29         95.39           28
Richland Creek................     11070103         37.12         95.46         37.15         95.33           49
Rock Creek....................     11070103         37.21         95.67         37.16         95.74           58

[[Page 41256]]

 
Rock Creek....................     11070103         37.38         95.52         37.38         95.47           61
Snow Creek....................     11070103         36.96         95.53         37.03         95.34           25
Spring Creek..................     11070103         37.1          95.76         37.06         95.82           55
Sycamore Creek................     11070103         37.03         95.65         37.1          95.68           52
Wildcat Creek.................     11070103         37.27         95.44         37.3          95.42           60
----------------------------------------------------------------------------------------------------------------
                                                  Subbasin: Elk
----------------------------------------------------------------------------------------------------------------
Bachelor Creek................     11070104         37.31         95.97         37.39         95.94           25
Bloody Run....................     11070104         37.34         96.01         37.34         96.07           26
Bull Creek....................     11070104         37.47         96.34         37.44         96.41           33
Card Creek....................     11070104         37.25         95.85         37.21         95.94           19
Chetopa Creek.................     11070104         37.23         95.81         37.21         95.85           18
Clear Creek...................     11070104         37.36         96.15         37.31         96.21           30
Clear Creek...................     11070104         37.49         96.36         37.49         96.47           32
Coffey Branch.................     11070104         37.27         96.01         37.24         96.07           20
Duck Creek....................     11070104         37.3          95.92         37.46         95.95            3
Elk River, Mound Branch.......     11070104         37.42         96.22         37.43         96.41           15
Elk River, South Branch.......     11070104         37.51         96.4          37.54         96.5            38
Elk River, Rowe Branch........     11070104         37.55         96.44         37.58         96.41           39
Elm Branch....................     11070104         37.37         95.87         37.42         95.83           23
Hickory Creek.................     11070104         37.35         96.02         37.44         95.98           28
Hitchen Creek.................     11070104         37.38         96.06         37.52         96.15            7
Hitchen Creek, East...........     11070104         37.45         96.15         37.5          96.11           35
Little Duck Creek.............     11070104         37.32         95.89         37.37         95.93           24
Little Hitchen Creek..........     11070104         37.42         96.15         37.46         96.11           37
Painterhood Creek.............     11070104         37.38         96.04         37.52         96.04            5
Painterhood Creek, East.......     11070104         37.43         96.05         37.5          95.98           36
Pan Creek.....................     11070104         37.3          96.08         37.34         96.1            27
Pawpaw Creek..................     11070104         37.45         96.23         37.61         96.31           11
Racket Creek..................     11070104         37.28         95.78         37.35         95.78           21
Rock Creek....................     11070104         37.45         96.27         37.6          96.34           13
Salt Creek....................     11070104         37.27         95.92         37.31         96.19           17
Salt Creek, South.............     11070104         37.3          96.09         37.31         96.17           29
Skull Creek...................     11070104         37.42         96.36         37.4          96.38           31
Snake Creek...................     11070104         37.47         96.25         37.56         96.25           34
Sycamore Creek................     11070104         37.28         95.74         37.42         95.8            22
Wildcat Creek.................     11070104         37.37         96.17         37.38         96.38           16
----------------------------------------------------------------------------------------------------------------
                                                 Subbasin: Caney
----------------------------------------------------------------------------------------------------------------
Bachelor Creek................     11070106         37.2          96.15         37.27         96.11           47
Bee Creek.....................     11070106         37.05         95.97         37.23         96               9
California Creek..............     11070106         37.17         95.99         37.22         96.04           48
Caney Creek...................     11070106         37.11         96.05         37.33         96.37           12
Caney River, East Fork........     11070106         37.36         96.47         37.45         96.42           52
Caney Creek, North............     11070106         37.11         96.05         37.32         96.26           11
Cedar Creek...................     11070106         37.08         96.47         37.15         96.61           30
Cedar Creek...................     11070106         36.99         96.24         37.12         96.29           32
Cheyenne Creek................     11070106         37.02         95.95         37.13         95.87           40
Coon Creek....................     11070106         36.99         96.23         37.04         96.19           36
Corum Creek...................     11070106         37.34         96.45         37.41         96.41           51
Cotton Creek..................     11070106         37.07         95.95         37.12         95.89           38
Cotton Creek, North Fork......     11070106         36.98         95.88         37.01         95.87           37
Dry Creek.....................     11070106         37.05         96.44         37.11         96.44           29
Fly Creek.....................     11070106         37.15         96.11         37.23         96.06           46
Illinois Creek................     11070106         37.11         95.95         37.2          95.93           39
Jim Creek.....................     11070106         37.21         96.56         37.24         96.61           49
Lake Creek....................     11070106         37.03         95.96         37.03         96.05           34
Otter Creek...................     11070106         37.09         96.11         37.06         96.17           33
Pool Creek....................     11070106         37.15         96.27         37.18         96.36           43
Possum Trot Creek.............     11070106         37.03         96.41         36.99         96.46           74
Rock Creek....................     11070106         37.04         96.43         37.05         96.66           28
Spring Creek..................     11070106         37.17         96.27         37.3          96.28           44
Spring Creek..................     11070106         37.27         96.46         37.35         96.53           53
Squaw Creek...................     11070106         37.24         96.46         37.27         96.42           42
Sycamore Creek................     11070106         37.02         96.35         37.14         96.34           31
Turkey Creek..................     11070106         37.21         96.18         37.23         96.24           45
Union Creek...................     11070106         37.2          96.49         37.29         96.53           41
Wolf Creek....................     11070106         37.11         96.15         37.18         96.18           35
Wolf Creek....................     11070106         37.26         96.46         37.37         96.38           50
----------------------------------------------------------------------------------------------------------------

[[Page 41257]]

 
                                                  Basin: Walnut
                                          Subbasin: Upper Walnut River
----------------------------------------------------------------------------------------------------------------
Badger Creek..................     11030017         37.74         97.01         37.77         97.08           36
Bemis Creek...................     11030017         37.85         96.73         37.89         96.59            8
Coke Creek....................     11030017         37.94         96.79         38.08         96.75           15
Constant Creek................     11030017         37.8          96.86         37.84         96.92           41
Dry Creek.....................     11030017         37.67         97            37.77         97.22           27
Dry Creek.....................     11030017         37.93         97.04         38.04         97.13           32
Durechen Creek................     11030017         37.92         96.75         38.01         96.56           12
Elm Creek.....................     11030017         37.68         96.99         37.79         96.95           43
Fourmile Creek................     11030017         37.89         97.05         37.99         96.91           20
Gilmore Branch................     11030017         37.95         96.79         37.98         96.82           39
Gypsum Creek..................     11030017         37.93         97.15         38.01         97.25           30
Henry Creek...................     11030017         37.99         97.03         38.11         97.11           33
Lower Branch..................     11030017         37.85         96.72         37.83         96.57           42
Prairie Creek.................     11030017         37.84         97.11         37.86         97.24           35
Rock Creek....................     11030017         37.85         97.04         37.93         96.94           37
Sand Creek....................     11030017         37.9          97.19         37.91         97.25           29
Satchel Creek.................     11030017         37.88         96.75         37.91         96.58           10
School Branch.................     11030017         38.01         96.72         38.08         96.71           45
Sutton Creek..................     11030017         37.75         96.88         37.82         96.93           40
Walnut Creek..................     11030017         38.03         97.2          38.06         97.26           44
Whitewater Creek..............     11030017         37.83         97.1          37.81         97.23           34
Whitewater Creek, East Branch.     11030017         37.97         97.16         38.1          97.19           31
Whitewater River, East Branch.     11030017         37.98         97.02         38.1          96.9            22
Whitewater River, West Branch.     11030017         37.81         97.02         37.85         97.12           24
Whitewater River, West Branch.     11030017         37.85         97.12         38.12         97.24           25
Wildcat Creek.................     11030017         37.85         97.12         38            97.26           26
Wildcat Creek, West...........     11030017         37.93         97.22         37.98         97.26           28
----------------------------------------------------------------------------------------------------------------
                                          Subbasin: Lower Walnut River
----------------------------------------------------------------------------------------------------------------
Black Crook Creek.............     11030018         37.22         96.98         37.27         96.93           18
Cedar Creek...................     11030018         37.3          96.96         37.33         96.81           19
Chigger Creek.................     11030018         37.48         96.9          37.54         96.83           21
Crooked Creek.................     11030018         37.31         97.04         37.37         97.09           31
Durham Creek..................     11030018         37.47         96.94         37.45         96.88           23
Dutch Creek...................     11030018         37.24         97            37.34         96.94            2
Dutch Creek...................     11030018         37.34         96.94         37.47         96.73            4
Eightmile Creek...............     11030018         37.45         97.04         37.63         97.16           30
Foos Creek....................     11030018         37.31         97.03         37.36         96.97           26
Hickory Creek.................     11030018         37.61         96.91         37.66         96.52           12
Honey Creek...................     11030018         37.62         96.69         37.67         96.62           33
Little Dutch Creek............     11030018         37.35         97.04         37.4          96.95           27
Lower Dutch Creek.............     11030018         37.45         96.81         37.46         96.72           20
Plum Creek....................     11030018         37.62         96.73         37.59         96.64           36
Polecat Creek.................     11030018         37.43         97.04         37.57         97.19           17
Posey Creek...................     11030018         37.16         96.95         37.21         97.03           37
Richland Creek................     11030018         37.39         96.89         37.43         96.77           25
Rock Creek, North Branch......     11030018         37.51         96.79         37.56         96.61           35
Sanford Creek.................     11030018         37.4          97.01         37.41         96.96           29
Spring Branch.................     11030018         37.66         97.15         37.7          97.21           32
Stalter Branch................     11030018         37.44         96.98         37.43         96.92           24
Stewart Creek.................     11030018         37.37         97.05         37.43         97.12           28
Swisher Branch................     11030018         37.49         96.92         37.55         96.87           22
    Total = 1292
----------------------------------------------------------------------------------------------------------------


----------------------------------------------------------------------------------------------------------------
                   Lake name                                   County                        Waterbody No.
----------------------------------------------------------------------------------------------------------------
                                                 Basin: Cimarron
                                     Subbasin: Upper Cimarron (HUC 11040002)
----------------------------------------------------------------------------------------------------------------
Moss Lake East................................  Morton..............................  L1
Moss Lake West................................  Morton..............................  L3
----------------------------------------------------------------------------------------------------------------
                                  Subbasin: North Fork Cimarron (HUC 11040003)
----------------------------------------------------------------------------------------------------------------
Frazier Lake..................................  Grant...............................  L4
----------------------------------------------------------------------------------------------------------------

[[Page 41258]]

 
                                  Subbasin: North Fork Cimarron (HUC 11040003)
----------------------------------------------------------------------------------------------------------------
Russell Lake..................................  Stevens.............................  L5
----------------------------------------------------------------------------------------------------------------
                                  Subbasin: Upper Cimarron-Bluff (HUC 11040008)
----------------------------------------------------------------------------------------------------------------
Clark State Fishing Lake......................  Clark...............................  L8
----------------------------------------------------------------------------------------------------------------
Saint Jacob's Well............................  Clark...............................  L7
----------------------------------------------------------------------------------------------------------------
                                         Basin: Kansas/Lower Republican
                                   Subbasin: Middle Republican (HUC 10250016)
----------------------------------------------------------------------------------------------------------------
Lake Jewell...................................  Jewell..............................  L14
----------------------------------------------------------------------------------------------------------------
                                    Subbasin: Lower Republican (HUC 10250017)
----------------------------------------------------------------------------------------------------------------
Belleville City Lake..........................  Republic............................  L16
Wakefield Lake................................  Clay................................  L19
----------------------------------------------------------------------------------------------------------------
                                      Subbasin: Upper Kansas (HUC 10270101)
----------------------------------------------------------------------------------------------------------------
Ogden City Lake...............................  Riley...............................  L20
Rocky Ford Fishing Lake.......................  Riley...............................  L21
----------------------------------------------------------------------------------------------------------------
                                     Subbasin: Middle Kansas (HUC 10270102)
----------------------------------------------------------------------------------------------------------------
Alma City Reservoir...........................  Wabaunsee...........................  L23
Cedar Crest Pond..............................  Shawnee.............................  L24
Central Park Lake.............................  Shawnee.............................  L25
Gage Park Lake................................  Shawnee.............................  L28
Jeffrey Energy Center Lakes...................  Pottawatomie........................  L29
Wamego City Lake..............................  Pottawatomie........................  L40
Pillsbury Crossing Fishing Lake...............  Riley...............................  L33
Pottawatomie State Fishing Lake #1............  Pottawatomie........................  L34
Pottawatomie State Fishing Lake #2............  Pottawatomie........................  L35
Shawnee County State Fishing Lake.............  Shawnee.............................  L36
----------------------------------------------------------------------------------------------------------------
                                        Subbasin: Delaware (HUC 10270103)
----------------------------------------------------------------------------------------------------------------
Atchison County Park Lake.....................  Atchison............................  L41
Elk Horn Lake.................................  Jackson.............................  L42
Little Lake...................................  Brown...............................  L43
Nebo Watershed Lake...........................  Jackson.............................  L46
----------------------------------------------------------------------------------------------------------------
                                      Subbasin: Lower Kansas (HUC 10270104)
----------------------------------------------------------------------------------------------------------------
Carbondale West Lake..........................  Osage...............................  L48
Douglas County State Lake.....................  Douglas.............................  L50
Leavenworth County State Fishing Lake.........  Leavenworth.........................  L53
Lenexa Lake...................................  Johnson.............................  L54
Mahaffie Farmstead Pond.......................  Johnson.............................  L56
North Park Lake...............................  Wyandotte...........................  L58
Pierson Park Lake.............................  Wyandotte...........................  L61
Potter's Lake.................................  Douglas.............................  L62
Strowbridge Reservoir.........................  Osage...............................  L63
Sunflower Park Lake...........................  Johnson.............................  L64
Waterworks Lakes..............................  Johnson.............................  L65
----------------------------------------------------------------------------------------------------------------
                                     Subbasin: Lower Big Blue (HUC 10270205)
----------------------------------------------------------------------------------------------------------------
Lake Idlewild.................................  Marshall............................  L67
----------------------------------------------------------------------------------------------------------------
                                   Subbasin: Lower Little Blue (HUC 10270207)
----------------------------------------------------------------------------------------------------------------
Washington County State Fishing Lake..........  Washington..........................  L68
----------------------------------------------------------------------------------------------------------------
                                              Basin: Lower Arkansas
                                      Subbasin: Rattlesnake (HUC 11030009)
----------------------------------------------------------------------------------------------------------------
Kiowa County State Fishing Lake...............  Kiowa...............................  L71
----------------------------------------------------------------------------------------------------------------
                                          Subbasin: Cow (HUC 11030011)
----------------------------------------------------------------------------------------------------------------
Dillon Park Lakes #1..........................  Reno................................  L76
Dillon Park Lake #2...........................  Reno................................  L77

[[Page 41259]]

 
Sterling City Lake............................  Rice................................  L78
----------------------------------------------------------------------------------------------------------------
                                    Subbasin: Little Arkansas (HUC 11030012)
----------------------------------------------------------------------------------------------------------------
Mingenback Lake...............................  McPherson...........................  L82
Newton City Park Lake.........................  Harvey..............................  L83
----------------------------------------------------------------------------------------------------------------
                                 Subbasin: Middle Arkansas-Slate (HUC 11030013)
----------------------------------------------------------------------------------------------------------------
Belaire Lake..................................  Sedgwick............................  L84
Buffalo Park Lake.............................  Sedgwick............................  L86
Emery Park....................................  Sedgwick............................  L90
Harrison Park Lake............................  Sedgwick............................  L91
Horseshoe Lake................................  Sedgwick............................  L92
Kid's Pond....................................  Sedgwick............................  L93
Moss Lake.....................................  Sedgwick............................  L94
Riggs Park Lake...............................  Sedgwick............................  L95
Vic's Lake....................................  Sedgwick............................  L96
Windmill Lake.................................  SedgwicK............................  L98
----------------------------------------------------------------------------------------------------------------
                                  Subbasin: South Fork Ninnescah (HUC 11030015)
----------------------------------------------------------------------------------------------------------------
Kingman County State Fishing Lake.............  Kingman.............................  L101
Lemon Park Lake...............................  Pratt...............................  L103
----------------------------------------------------------------------------------------------------------------
                                        Subbasin: Kaw Lake (HUC 11060001)
----------------------------------------------------------------------------------------------------------------
Cowley County State Fishing Lake..............  Cowley..............................  L107
----------------------------------------------------------------------------------------------------------------
                                     Subbasin: Medicine Lodge (HUC 11060003)
----------------------------------------------------------------------------------------------------------------
Barber County State Fishing Lake..............  Barber..............................  L108
----------------------------------------------------------------------------------------------------------------
                                Subbasin: Lower Salt Fork Arkansas (HUC 11060004)
----------------------------------------------------------------------------------------------------------------
Hargis Lake...................................  Barber..............................  L109
-----------------------------------------------
                                            Basin: Marais Des Cygnes
                                Subbasin: Upper Marais Des Cygnes (HUC 10290101)
----------------------------------------------------------------------------------------------------------------
Allen/Admire City Lake........................  Lyon................................  L115
Cedar Creek Lake..............................  Anderson............................  L116
Crystal Lake..................................  Anderson............................  L117
Lebo City Lake................................  Coffey..............................  L121
Lebo City Park Lake...........................  Coffey..............................  L121
Lyon County State Fishing Lake................  Lyon................................  L124
Osage City Reservoir..........................  Osage...............................  L126
Osage County State Fishing Lake...............  Osage...............................  L127
Waterworks Impoundment........................  Anderson............................  L132
----------------------------------------------------------------------------------------------------------------
                                Subbasin: Lower Marais Des Cygnes (HUC 10290102)
----------------------------------------------------------------------------------------------------------------
Edgerton City Lake............................  Johnson.............................  L133
Edgerton South Lake...........................  Johnson.............................  L134
Lake Lacygne..................................  Linn................................  L136
Louisburg State Fishing Lake..................  Miami...............................  L139
Miami County State Fishing Lake...............  Miami...............................  L141
Paola City Lake...............................  Miami...............................  L144
Pleasanton Lake #1............................  Linn................................  L146
Pleasanton Lake #2............................  Linn................................  L147
Spring Hill City Lake.........................  Johnson.............................  L149
----------------------------------------------------------------------------------------------------------------
                                      Subbasin: Little Osage (HUC 10290103)
----------------------------------------------------------------------------------------------------------------
Blue Mound City Lake..........................  Linn................................  L150
----------------------------------------------------------------------------------------------------------------
                                        Subbasin: Marmaton (HUC 10290104)
----------------------------------------------------------------------------------------------------------------
Bourbon County State Fishing Lake.............  Bourbon.............................  L152
Bronson City Lake.............................  Bourbon.............................  L153
Gunn Park Lake, East..........................  Bourbon.............................  L155
Gunn Park Lake, West..........................  Bourbon.............................  L156
Mulberry City Park............................  Crawford............................  L159
Rock Creek Lake...............................  Bourbon.............................  L160
----------------------------------------------------------------------------------------------------------------

[[Page 41260]]

 
                                                 Basin: Missouri
                                      Subbasin: Tarkio-Wolf (HUC 10240005)
----------------------------------------------------------------------------------------------------------------
Brown County State Fishing Lake...............  Brown...............................  L161
Hiawatha City Lake............................  Brown...............................  L162
----------------------------------------------------------------------------------------------------------------
                                 Subbasin: South Fork Big Nemaha (HUC 10240007)
----------------------------------------------------------------------------------------------------------------
Pony Creek Lake...............................  Nemaha..............................  L163
Sabetha City Lake.............................  Nemaha..............................  L164
                                   Subbasin: Independence-Sugar (HUC 10240011)
----------------------------------------------------------------------------------------------------------------
Atchison City Lakes...........................  Atchison............................  L165
Atchison County State Fishing Lake............  Atchison............................  L166
Big Eleven Lake...............................  Wyandotte...........................  L167
Doniphan Fair Association Lake................  Doniphan............................  L168
Jerrys Lake...................................  Leavenworth.........................  L169
Lansing City Lake.............................  Leavenworth.........................  L170
South Park Lake...............................  Leavenworth.........................  L171
----------------------------------------------------------------------------------------------------------------
                                 Subbasin: Lower Missouri-Crooked (HUC 10300101)
----------------------------------------------------------------------------------------------------------------
Prairie View Park.............................  Johnson.............................  L175
South Park Lake...............................  Johnson.............................  L176
Stanley Rural Water District Lake #2..........  Johnson.............................  L177
Stohl Park Lake...............................  Johnson.............................  L70
----------------------------------------------------------------------------------------------------------------
                                                  Basin: Neosho
                                    Subbasin: Upper Cottonwood (HUC 11070202)
----------------------------------------------------------------------------------------------------------------
Hillsboro City Pond...........................  Marion..............................  L184
----------------------------------------------------------------------------------------------------------------
                                    Subbasin: Lower Cottonwood (HUC 11070203)
----------------------------------------------------------------------------------------------------------------
Peter Pan Pond................................  Lyon................................  L192
----------------------------------------------------------------------------------------------------------------
                                      Subbasin: Upper Neosho (HUC 11070204)
----------------------------------------------------------------------------------------------------------------
Chanute City (Santa Fe) Lake..................  Neosho..............................  L193
Circle Lake...................................  Woodson.............................  L45
Leonard's Lake................................  Woodson.............................  L72
Neosho Falls City Lake........................  Woodson.............................  L208
New Strawn Park...............................  Coffey..............................  L197
----------------------------------------------------------------------------------------------------------------
                                     Subbasin: Middle Neosho (HUC 11070205)
----------------------------------------------------------------------------------------------------------------
Altamont City Lake #1.........................  Labette.............................  L201
Bartlett City Lake............................  Labette.............................  L204
Harmon Wildlife Area Lakes....................  Labette.............................  L205
Mined Land Wildlife Area Lakes................  Cherokee............................  L206
Neosho County State Fishing Lake..............  Neosho..............................  L207
Timber Lake...................................  Neosho..............................  L211
----------------------------------------------------------------------------------------------------------------
                                         Subbasin: Spring (HUC 11070207)
----------------------------------------------------------------------------------------------------------------
Empire Lake...................................  Cherokee............................  L212
Frontenac City Park...........................  Crawford............................  L213
Mined Land Wildlife Area Lakes................  Crawford............................  L214
Pittsburg College Lake........................  Crawford............................  L215
Playters Lake.................................  Crawford............................  L216
----------------------------------------------------------------------------------------------------------------
                                            Basin: Smoky Hill/Saline
                                 Subbasin: North Fork Smoky Hill (HUC 10260002)
----------------------------------------------------------------------------------------------------------------
Smoky Hill Garden Lake........................  Sherman.............................  L217
----------------------------------------------------------------------------------------------------------------
                                    Subbasin: Upper Smoky Hill (HUC 10260003)
----------------------------------------------------------------------------------------------------------------
Logan County State Fishing Lake...............  Logan...............................  L22
----------------------------------------------------------------------------------------------------------------
                                   Subbasin: Middle Smoky Hill (HUC 10260006)
----------------------------------------------------------------------------------------------------------------
Fossil Lake...................................  Russell.............................  L222
----------------------------------------------------------------------------------------------------------------

[[Page 41261]]

 
                                          Subbasin: Big (HUC 10260007)
----------------------------------------------------------------------------------------------------------------
Big Creek Oxbow...............................  Ellis...............................  L224
Ellis City Lake...............................  Ellis...............................  L225
                                    Subbasin: Lower Smoky Hill (HUC 10260008)
----------------------------------------------------------------------------------------------------------------
Geary County State Fishing Lake...............  Geary...............................  L226
Herington City Park Lake......................  Dickinson...........................  L228
Herington Reservoir...........................  Dickinson...........................  L229
Lakewood Park Lake............................  Saline..............................  L230
McPherson County State Fishing Lake...........  McPherson...........................  L231
Rimrock Lake..................................  Geary...............................  L218
----------------------------------------------------------------------------------------------------------------
                                      Subbasin: Upper Saline (HUC 10260009)
----------------------------------------------------------------------------------------------------------------
Plainville Township Lake......................  Rooks...............................  L233
----------------------------------------------------------------------------------------------------------------
                                      Subbasin: Lower Saline (HUC 10260010)
----------------------------------------------------------------------------------------------------------------
Lucus City Lake...............................  Russell.............................  L235
Saline County State Fishing Lake..............  Saline..............................  L236
                                                 Basin: Solomon
                                Subbasin: Lower North Fork Solomon (HUC 10260012)
----------------------------------------------------------------------------------------------------------------
 
Francis Wachs Wildlife Area Lakes.............  Smith...............................  L241
                                Subbasin: Upper South Fork Solomon (HUC 10260013)
----------------------------------------------------------------------------------------------------------------
Antelope Lake.................................  Graham..............................  L242
Sheridan County State Fishing Lake............  Sheridan............................  L243
                                Subbasin: Lower South Fork Solomon (HUC 10260014)
----------------------------------------------------------------------------------------------------------------
Rooks County State Fishing Lake...............  Rooks...............................  L246
----------------------------------------------------------------------------------------------------------------
                                     Subbasin: Solomon River (HUC 10260015)
----------------------------------------------------------------------------------------------------------------
Jewell County State Fishing Lake..............  Jewell..............................  L237
Ottawa County State Fishing Lake..............  Ottawa..............................  L248
----------------------------------------------------------------------------------------------------------------
                                              Basin: Upper Arkansas
                             Subbasin: Middle Arkansas-Lake McKinney (HUC 11030001)
----------------------------------------------------------------------------------------------------------------
Lake McKinney.................................  Kearny..............................  L251
----------------------------------------------------------------------------------------------------------------
                                  Subbasin: Arkansas-Dodge City (HUC 11030003)
----------------------------------------------------------------------------------------------------------------
Lake Charles..................................  Ford................................  L252
----------------------------------------------------------------------------------------------------------------
                                         Subbasin: Pawnee (HUC 11030005)
----------------------------------------------------------------------------------------------------------------
Concannon State Fishing Lake..................  Finney..............................  L253
Finney County Game Refuge Lakes...............  Finney..............................  L254
                                        Subbasin: Buckner (HUC 11030006)
----------------------------------------------------------------------------------------------------------------
Ford County Lake..............................  Ford................................  L256
Hain State Fishing Lake.......................  Ford................................  L257
----------------------------------------------------------------------------------------------------------------
                                   Subbasin: Upper Walnut Creek (HUC 11030007)
----------------------------------------------------------------------------------------------------------------
Goodman State Fishing Lake....................  Ness................................  L259
                                   Subbasin: Lower Walnut Creek (HUC 11030008)
----------------------------------------------------------------------------------------------------------------
Barton Lake...................................  Barton..............................  L260
Memorial Park Lake............................  Barton..............................  L261
Stone Lake....................................  Barton..............................  L262
----------------------------------------------------------------------------------------------------------------
                                             Basin: Upper Republican
                                 Subbasin: South Fork Republican (HUC 10250003)
----------------------------------------------------------------------------------------------------------------
Saint Francis Wildlife Area Lakes.............  Cheyenne............................  L263
                                   Subbasin: South Fork Beaver (HUC 10250012)
----------------------------------------------------------------------------------------------------------------
Atwood Township Lake..........................  Rawlins.............................  L264

[[Page 41262]]

 
                                      Subbasin: Prairie Dog (HUC 10250015)
----------------------------------------------------------------------------------------------------------------
Colby City Pond...............................  Thomas..............................  L265
----------------------------------------------------------------------------------------------------------------
                                                Basin: Verdigris
                                    Subbasin: Upper Verdigris (HUC 11070101)
----------------------------------------------------------------------------------------------------------------
New Yates Center Reservoir....................  Woodson.............................  L269
Quarry Lake...................................  Wilson..............................  L270
Thayer New City Lake..........................  Neosho..............................  L271
Wilson County State Fishing Lake..............  Wilson..............................  L274
Woodson County State Fishing Lake.............  Woodson.............................  L275
----------------------------------------------------------------------------------------------------------------
                                    Subbasin: Middle Verdigris (HUC 11070103)
----------------------------------------------------------------------------------------------------------------
La Claire Lake................................  Montgomery..........................  L281
Montgomery County State Fishing Lake..........  Montgomery..........................  L282
Pfister Park Lakes............................  Montgomery..........................  L283
----------------------------------------------------------------------------------------------------------------
                                          Subbasin: Elk (HUC 11070104)
----------------------------------------------------------------------------------------------------------------
Moline City Lake #2...........................  Elk.................................  L285
Polk Daniels (Elk) State Fishing Lake.........  Elk.................................  L288
----------------------------------------------------------------------------------------------------------------
                                         Subbasin: Caney (HUC 11070106)
----------------------------------------------------------------------------------------------------------------
Caney City Lake...............................  Chautauqua..........................  L289
Sedan City Lake, North........................  Chautauqua..........................  L290
----------------------------------------------------------------------------------------------------------------
                                                  Basin: Walnut
                                   Subbasin: Lower Walnut River (HUC 11030018)
----------------------------------------------------------------------------------------------------------------
Butler County State Fishing Lake..............  Butler..............................  L297
Winfield Park Lagoon..........................  Cowley..............................  L299
    Total = 164
----------------------------------------------------------------------------------------------------------------

    (i) Water quality standard variances. (1) The Regional 
Administrator, EPA Region 7, is authorized to grant variances from the 
water quality standards in paragraphs (f) and (g) of this section where 
the requirements of this paragraph (h) are met. A water quality 
standard variance applies only to the permittee requesting the variance 
and only to the pollutant or pollutants specified in the variance; the 
underlying water quality standard otherwise remains in effect.
    (2) A water quality standard variance shall not be granted if:
    (i) Standards will be attained by implementing effluent limitations 
required under sections 301(b) and 306 of the CWA and by the permittee 
implementing reasonable best management practices for nonpoint source 
control; or
    (ii) The variance would likely jeopardize the continued existence 
of any threatened or endangered species listed under section 4 of the 
Endangered Species Act or result in the destruction or adverse 
modification of such species' critical habitat.
    (3) Subject to paragraph (b)(2) of this section, a water quality 
standards variance may be granted if the applicant demonstrates to EPA 
that attaining the water quality standard is not feasible because:
    (i) Naturally occurring pollutant concentrations prevent the 
attainment of the use; or
    (ii) Natural, ephemeral, intermittent or low flow conditions or 
water levels prevent the attainment of the use, unless these conditions 
may be compensated for by the discharge of sufficient volume of 
effluent discharges without violating State water conservation 
requirements to enable uses to be met; or
    (iii) Human caused conditions or sources of pollution prevent the 
attainment of the use and cannot be remedied or would cause more 
environmental damage to correct than to leave in place; or
    (iv) Dams, diversions or other types of hydrologic modifications 
preclude the attainment of the use, and it is not feasible to restore 
the water body to its original condition or to operate such 
modification in a way which would result in the attainment of the use; 
or
    (v) Physical conditions related to the natural features of the 
water body, such as the lack of a proper substrate, cover, flow, depth, 
pools, riffles, and the like unrelated to water quality, preclude 
attainment of aquatic life protection uses; or
    (vi) Controls more stringent than those required by sections 301(b) 
and 306 of the CWA would result in substantial and widespread economic 
and social impact.
    (4) Procedures. An applicant for a water quality standards variance 
shall submit a request to the Regional Administrator of EPA Region 7. 
The application shall include all relevant information showing that the 
requirements for a variance have been satisfied. The burden is on the 
applicant to demonstrate to EPA's satisfaction that the designated use 
is unattainable for one of the reasons specified in paragraph (i)(3) of 
this section. If the Regional Administrator preliminarily determines 
that grounds exist for granting a variance, he shall provide public 
notice of the proposed variance and provide an opportunity for public 
comment. Any activities required as a condition of the Regional 
Administrator's granting of a variance shall be included as conditions 
of the NPDES permit for the applicant. These terms and conditions shall 
be incorporated into the applicant's NPDES permit through the permit 
reissuance process or through a modification of the permit pursuant to 
the applicable

[[Page 41263]]

permit modification provisions of Kansas' NPDES program.
    (5) A variance may not exceed 3 years or the term of the NPDES 
permit, whichever is less. A variance may be renewed if the applicant 
reapplies and demonstrates that the use in question is still not 
attainable. Renewal of the variance may be denied if the applicant did 
not comply with the conditions of the original variance, or otherwise 
does not meet the requirements of this section.

[FR Doc. 00-15914 Filed 6-30-00; 8:45 am]
BILLING CODE 6560-50-P


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