Water Law Practice Tests
Practice Water Law exam questions covering core doctrines, issue spotting, applied analysis, and exam-ready explanations.
How To Study This Subject
Learn the rule
Read the outline and identify the elements, exceptions, and policy tensions.
Test recall
Use the 20 free questions first, then move into timed premium sets.
Apply cases
Connect leading authorities to problem-question facts and ratio-based reasoning.
Write under time
Turn missed topics into IRAC plans and short timed answers.
Related Case Briefs
State ex rel. State Water Resources Control Board v. City of Colton
81 Cal.App.5th 1047
Water right holders must comply with permit terms; unauthorized diversions subject to enforcement and penalties.
Municipal Water District v. Imperial Irrigation District (Quantification Settlement Agreement)
37 Cal.4th 102
Water transfers that conserve water may still be subject to environmental review if they have potential adverse impacts on the environment.
Klamath Irrigation District v. United States
227 F.3d 1355
Federal water contracts are subordinate to later-arising federal reserved rights and trust responsibilities to tribes and species.
PUD No. 1 of Jefferson County v. Washington Department of Ecology
511 U.S. 700
States have authority under Section 401 to impose conditions that ensure compliance with water quality standards, including instream flows.
Arizona v. San Carlos Apache Tribe
463 U.S. 545
The McCarran Amendment waives sovereign immunity and allows state courts to adjudicate federal and Indian water rights in comprehensive proceedings.
Texas v. New Mexico (Pecos River Compact)
462 U.S. 554
Interstate compacts are contracts; violations can be remedied by court-ordered accounting and compliance mechanisms.
San Juan River Project: Colorado, New Mexico, Utah, and Arizona (Upper Colorado River Basin Compact)
459 U.S. 176
In the absence of a compact, the Supreme Court apportions interstate rivers equitably, balancing multiple factors.
Sporhase v. Nebraska ex rel. Douglas
458 U.S. 941
States may not unreasonably burden interstate commerce in groundwater; restrictions must be narrowly tailored to conserve water.