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Washington Administrative Code (WAC)
Title 173
Chapter 201A
Wash. Admin. Code ch. 173-201A
Water Quality Standards for Surface Waters of the State of Washington
ECOLOGY, DEPARTMENT OF
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173-201A-010
Purpose
173-201A-020
Definitions
173-201A-200
Fresh water designated uses and criteria
173-201A-210
Marine water designated uses and criteria
173-201A-230
Establishing lake nutrient criteria
173-201A-240
Toxic substances
173-201A-250
Radioactive substances
173-201A-260
Natural conditions and other water quality criteria and applications
173-201A-300
Description
173-201A-310
Tier I—Protection and maintenance of existing and designated uses
173-201A-320
Tier II—Protection of waters of higher quality than the standards
173-201A-330
Tier III—Protection of outstanding resource waters
173-201A-332
Table 332—Outstanding resource water designations by water resource inventory area (WRIA)
173-201A-400
Mixing zones
173-201A-410
Short-term modifications
173-201A-420
Variance
173-201A-430
Site-specific criteria
173-201A-440
Use attainability analysis
173-201A-450
Water quality offsets
173-201A-460
Intake credits
173-201A-470
Performance-based approach
173-201A-500
Achievement considerations
173-201A-510
Means of implementation
173-201A-520
Monitoring and compliance
173-201A-530
Enforcement
173-201A-600
Use designations—Fresh waters
173-201A-602
Table 602—Use designations for fresh waters by water resource inventory area (WRIA)
173-201A-610
Use designations—Marine waters
173-201A-612
Table 612—Use designations for marine waters