WSP06423

• File Number: 8272.900
• Description: Colorado River Basin Salinity Control Program - Indian Tribes
• Basin: Colorado Mainstem
• Water Division: 5
• Date: 3/1/1996
• Title: Southern Ute Indian Tribe - Water Quality Department -- draft Water Quality Standards for the Southern Ute Indian Reservation
• Water Supply Pro - Doc Type: Report/Study

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(B) Antid~qradation Review Process (Reserved)

Implementation procedures for the Antidegradation Review Process
are currently being prepared. The Tribe's review process will
consider the most recent EPA Region VIII guidance when preparing
its an anti degradation review process.

V NARRATIV)!: WATER QUALITY CRITERIA

All surfac~ waters within the reservation boundaries are subject
to the following narrative criteria; however, discharge of
substances regulated by permits which are within those permit
limitations shall not be a basis for enforcement proceedings
under these narrative criteria:

(A) Criteria

Reservation surface"waters except constructed wetlands shall be
free from substances attributable to human caused point source or
nonpoint source discharge in amounts, concentrations or
combinations which:

(1) can settle to form bottom deposits detrimental to
the existing beneficial uses; or

(2) form floating debris, scum, or other surface
materials sufficient to harm existing beneficial
uses; or

(3) produce color, odor, or other conditions in such a
degree as to create a nuisance or harm existing
benefic~al uses or impart any undesirable taste to
significant edible aquatic species or to the water;
or

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(4) are harmful to existing beneficial uses or toxic to
humans, animals, plants, or aquatic life; or

(5) produce a predominance of undesirable aquatic life or animals
which are detrimental to existing beneficial uses; or

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(6) cause a film on the surface or produce a deposit on
shorelines which are detrimental to existing beneficial uses.

(B) Implementation

The narrative water quality criteria shall be implemented taking
into consideration appropriate EPA technical guidance concerning
development .of water quality-based controls, such as methods
described in the Technical SU2port Document for Water Quality
Based Toxic 'Control, EPA, 1991. For substances for which numeric

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