Title 90 - WATER RIGHTS-ENVIRONMENT
- Chapter 90.03 - WATER CODE (§§ 90.03.005 — 90.03.NEW-002)
- Chapter 90.08 - STREAM PATROLLERS (§§ 90.08.040 — 90.08.070)
- Chapter 90.14 - WATER RIGHTS-REGISTRATION-WAIVER AND RELINQUISHMENT, ETC (§§ 90.14.010 — 90.14.910)
- Chapter 90.16 - APPROPRIATION OF WATER FOR PUBLIC AND INDUSTRIAL PURPOSES (§§ 90.16.010 — 90.16.120)
- Chapter 90.22 - MINIMUM WATER FLOWS AND LEVELS (§§ 90.22.010 — 90.22.060)
- Chapter 90.24 - REGULATION OF OUTFLOW OF LAKES (§§ 90.24.010 — 90.24.070)
- Chapter 90.28 - MISCELLANEOUS RIGHTS AND DUTIES (§§ 90.28.010 — 90.28.170)
- Chapter 90.36 - ARTESIAN WELLS (§§ 90.36.010 — 90.36.050)
- Chapter 90.38 - YAKIMA RIVER BASIN WATER RIGHTS (§§ 90.38.005 — 90.38.902)
- Chapter 90.40 - WATER RIGHTS OF UNITED STATES (§§ 90.40.010 — 90.40.100)
- Chapter 90.42 - WATER RESOURCE MANAGEMENT (§§ 90.42.005 — 90.42.170)
- Chapter 90.44 - REGULATION OF PUBLIC GROUNDWATERS (§§ 90.44.020 — 90.44.550)
- Chapter 90.46 - RECLAIMED WATER USE (§§ 90.46.005 — 90.46.290)
- Chapter 90.48 - WATER POLLUTION CONTROL (§§ 90.48.010 — 90.48.NEW)
- Chapter 90.50A - WATER POLLUTION CONTROL FACILITIES-FEDERAL CAPITALIZATION GRANTS (§§ 90.50A.005 — 90.50A.090)
- Chapter 90.52 - POLLUTION DISCLOSURE ACT OF 1971 (§§ 90.52.005 — 90.52.900)
- Chapter 90.54 - WATER RESOURCES ACT OF 1971 (§§ 90.54.005 — 90.54.920)
- Chapter 90.56 - OIL AND HAZARDOUS SUBSTANCE SPILL PREVENTION AND RESPONSE (§§ 90.56.005 — 90.56.901)
- Chapter 90.58 - SHORELINE MANAGEMENT ACT OF 1971 (§§ 90.58.010 — 90.58.920)
- Chapter 90.64 - DAIRY NUTRIENT MANAGEMENT (§§ 90.64.005 — 90.64.901)
- Chapter 90.66 - FAMILY FARM WATER ACT (§§ 90.66.010 — 90.66.900)
- Chapter 90.71 - PUGET SOUND WATER QUALITY PROTECTION (§§ 90.71.010 — 90.71.907)
- Chapter 90.72 - SHELLFISH PROTECTION DISTRICTS (§§ 90.72.020 — 90.72.900)
- Chapter 90.74 - AQUATIC RESOURCES MITIGATION (§§ 90.74.005 — 90.74.040)
- Chapter 90.80 - WATER CONSERVANCY BOARDS (§§ 90.80.005 — 90.80.150)
- Chapter 90.82 - WATERSHED PLANNING (§§ 90.82.005 — 90.82.140)
- Chapter 90.84 - WETLANDS MITIGATION BANKING (§§ 90.84.005 — 90.84.070)
- Chapter 90.86 - JOINT LEGISLATIVE COMMITTEE ON WATER SUPPLY DURING DROUGHT (§§ 90.86.010 — 90.86.900)
- Chapter 90.88 - AQUATIC REHABILITATION ZONES (§§ 90.88.005 — 90.88.903)
- Chapter 90.90 - COLUMBIA RIVER BASIN WATER SUPPLY (§§ 90.90.005 — 90.90.900)
- Chapter 90.94 - STREAMFLOW RESTORATION (§§ 90.94.010 — 90.94.900)