The problem is always political. By "violating the agreement" you mean drawing water without paying for the required allocations (eg. disconnecting water meters

The problem is always political. By "violating the agreement" you mean drawing water without paying for the required allocations (eg. disconnecting water meters), or? And the state politicians allow this because of competition, basically subsidizing local water by letting people draw it for free, while externalizing the cost to other states?