020-1 Wyo. Code R. §§ 1-35 - Credible Data
(a) Development of
scientifically valid chemical, physical and biological monitoring data shall:
(i) Consist of data collection using accepted
referenced laboratory and field methods employed by a person who has received
specialized training and has field experience in developing a monitoring plan,
a quality assurance plan, and employing the methods outlined in such plans or
works under the supervision of a person who has these qualifications.
Specialized training includes a thorough knowledge of written sampling
protocols and field methods such that the data collection and interpretation
are reproducible, scientifically defensible and free from preconceived bias;
and
(ii) Includes documented
quality assurance consisting of a plan that details how environmental data
operations are planned, implemented and assessed with respect to quality during
the duration of the project.
(b) Credible data shall be collected on each
water body, as required in this section, and shall be considered for purposes
of characterizing the integrity of the water body including consideration of
soil, geology, hydrology, geomorphology, climate, stream succession and the
influences of man upon the system. These data in combination with other
available and applicable information shall be used through a weight-of-evidence
approach to designate uses and determine whether those uses are being attained.
In those instances where numerical standards contained in these rules are
exceeded or on ephemeral and intermittent water bodies where chemical and
biological sampling may not be practical or feasible, less than a complete set
of data may be used to make a decision on attainment.
(c) All changes to use designations after the
effective date of this rule shall include the consideration of credible data
relevant to the decision. Changes which involve the removal of a use
designation or the replacement of a designation shall be supported by a use
attainability analysis (UAA).
(d)
After the effective date of this rule, credible data shall be utilized in
determining a water body's attainment of designated uses.
Notes
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